diff --git a/Requirements.txt b/Requirements.txt
index d01d16b..49a2e71 100644
--- a/Requirements.txt
+++ b/Requirements.txt
@@ -8,7 +8,6 @@ colormath==3.0.0
 umap-learn==0.5.0
 pandas==1.3.1
 numpy==1.19.2
-bio==0.7.4
 biopython==1.79
 html2image==2.0.1
 python_igraph==0.9.6
diff --git a/c_env/bin/Activate.ps1 b/c_env/bin/Activate.ps1
new file mode 100644
index 0000000..900f50e
--- /dev/null
+++ b/c_env/bin/Activate.ps1
@@ -0,0 +1,230 @@
+<#
+.Synopsis
+Activate a Python virtual environment for the current Powershell session.
+
+.Description
+Pushes the python executable for a virtual environment to the front of the
+$Env:PATH environment variable and sets the prompt to signify that you are
+in a Python virtual environment. Makes use of the command line switches as
+well as the `pyvenv.cfg` file values present in the virtual environment.
+
+.Parameter VenvDir
+Path to the directory that contains the virtual environment to activate. The
+default value for this is the parent of the directory that the Activate.ps1
+script is located within.
+
+.Parameter Prompt
+The prompt prefix to display when this virtual environment is activated. By
+default, this prompt is the name of the virtual environment folder (VenvDir)
+surrounded by parentheses and followed by a single space (ie. '(.venv) ').
+
+.Example
+Activate.ps1
+Activates the Python virtual environment that contains the Activate.ps1 script.
+
+.Example
+Activate.ps1 -Verbose
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and shows extra information about the activation as it executes.
+
+.Example
+Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv
+Activates the Python virtual environment located in the specified location.
+
+.Example
+Activate.ps1 -Prompt "MyPython"
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and prefixes the current prompt with the specified string (surrounded in
+parentheses) while the virtual environment is active.
+
+
+#>
+Param(
+    [Parameter(Mandatory = $false)]
+    [String]
+    $VenvDir,
+    [Parameter(Mandatory = $false)]
+    [String]
+    $Prompt
+)
+
+<# Function declarations --------------------------------------------------- #>
+
+<#
+.Synopsis
+Remove all shell session elements added by the Activate script, including the
+addition of the virtual environment's Python executable from the beginning of
+the PATH variable.
+
+.Parameter NonDestructive
+If present, do not remove this function from the global namespace for the
+session.
+
+#>
+function global:deactivate ([switch]$NonDestructive) {
+    # Revert to original values
+
+    # The prior prompt:
+    if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {
+        Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt
+        Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT
+    }
+
+    # The prior PYTHONHOME:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME
+        Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME
+    }
+
+    # The prior PATH:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH
+        Remove-Item -Path Env:_OLD_VIRTUAL_PATH
+    }
+
+    # Just remove the VIRTUAL_ENV altogether:
+    if (Test-Path -Path Env:VIRTUAL_ENV) {
+        Remove-Item -Path env:VIRTUAL_ENV
+    }
+
+    # Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:
+    if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {
+        Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force
+    }
+
+    # Leave deactivate function in the global namespace if requested:
+    if (-not $NonDestructive) {
+        Remove-Item -Path function:deactivate
+    }
+}
+
+<#
+.Description
+Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the
+given folder, and returns them in a map.
+
+For each line in the pyvenv.cfg file, if that line can be parsed into exactly
+two strings separated by `=` (with any amount of whitespace surrounding the =)
+then it is considered a `key = value` line. The left hand string is the key,
+the right hand is the value.
+
+If the value starts with a `'` or a `"` then the first and last character is
+stripped from the value before being captured.
+
+.Parameter ConfigDir
+Path to the directory that contains the `pyvenv.cfg` file.
+#>
+function Get-PyVenvConfig(
+    [String]
+    $ConfigDir
+) {
+    Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"
+
+    # Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).
+    $pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue
+
+    # An empty map will be returned if no config file is found.
+    $pyvenvConfig = @{ }
+
+    if ($pyvenvConfigPath) {
+
+        Write-Verbose "File exists, parse `key = value` lines"
+        $pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath
+
+        $pyvenvConfigContent | ForEach-Object {
+            $keyval = $PSItem -split "\s*=\s*", 2
+            if ($keyval[0] -and $keyval[1]) {
+                $val = $keyval[1]
+
+                # Remove extraneous quotations around a string value.
+                if ("'""".Contains($val.Substring(0,1))) {
+                    $val = $val.Substring(1, $val.Length - 2)
+                }
+
+                $pyvenvConfig[$keyval[0]] = $val
+                Write-Verbose "Adding Key: '$($keyval[0])'='$val'"
+            }
+        }
+    }
+    return $pyvenvConfig
+}
+
+
+<# Begin Activate script --------------------------------------------------- #>
+
+# Determine the containing directory of this script
+$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
+$VenvExecDir = Get-Item -Path $VenvExecPath
+
+Write-Verbose "Activation script is located in path: '$VenvExecPath'"
+Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"
+Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"
+
+# Set values required in priority: CmdLine, ConfigFile, Default
+# First, get the location of the virtual environment, it might not be
+# VenvExecDir if specified on the command line.
+if ($VenvDir) {
+    Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"
+} else {
+    Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."
+    $VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")
+    Write-Verbose "VenvDir=$VenvDir"
+}
+
+# Next, read the `pyvenv.cfg` file to determine any required value such
+# as `prompt`.
+$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir
+
+# Next, set the prompt from the command line, or the config file, or
+# just use the name of the virtual environment folder.
+if ($Prompt) {
+    Write-Verbose "Prompt specified as argument, using '$Prompt'"
+} else {
+    Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"
+    if ($pyvenvCfg -and $pyvenvCfg['prompt']) {
+        Write-Verbose "  Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"
+        $Prompt = $pyvenvCfg['prompt'];
+    }
+    else {
+        Write-Verbose "  Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virutal environment)"
+        Write-Verbose "  Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"
+        $Prompt = Split-Path -Path $venvDir -Leaf
+    }
+}
+
+Write-Verbose "Prompt = '$Prompt'"
+Write-Verbose "VenvDir='$VenvDir'"
+
+# Deactivate any currently active virtual environment, but leave the
+# deactivate function in place.
+deactivate -nondestructive
+
+# Now set the environment variable VIRTUAL_ENV, used by many tools to determine
+# that there is an activated venv.
+$env:VIRTUAL_ENV = $VenvDir
+
+if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {
+
+    Write-Verbose "Setting prompt to '$Prompt'"
+
+    # Set the prompt to include the env name
+    # Make sure _OLD_VIRTUAL_PROMPT is global
+    function global:_OLD_VIRTUAL_PROMPT { "" }
+    Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT
+    New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt
+
+    function global:prompt {
+        Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "
+        _OLD_VIRTUAL_PROMPT
+    }
+}
+
+# Clear PYTHONHOME
+if (Test-Path -Path Env:PYTHONHOME) {
+    Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME
+    Remove-Item -Path Env:PYTHONHOME
+}
+
+# Add the venv to the PATH
+Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH
+$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"
diff --git a/c_env/bin/activate b/c_env/bin/activate
new file mode 100644
index 0000000..ae8e246
--- /dev/null
+++ b/c_env/bin/activate
@@ -0,0 +1,76 @@
+# This file must be used with "source bin/activate" *from bash*
+# you cannot run it directly
+
+deactivate () {
+    # reset old environment variables
+    if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
+        PATH="${_OLD_VIRTUAL_PATH:-}"
+        export PATH
+        unset _OLD_VIRTUAL_PATH
+    fi
+    if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
+        PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
+        export PYTHONHOME
+        unset _OLD_VIRTUAL_PYTHONHOME
+    fi
+
+    # This should detect bash and zsh, which have a hash command that must
+    # be called to get it to forget past commands.  Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+        hash -r
+    fi
+
+    if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
+        PS1="${_OLD_VIRTUAL_PS1:-}"
+        export PS1
+        unset _OLD_VIRTUAL_PS1
+    fi
+
+    unset VIRTUAL_ENV
+    if [ ! "${1:-}" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+VIRTUAL_ENV="/Users/chris/Desktop/Github/cartoGRAPHs/c_env"
+export VIRTUAL_ENV
+
+_OLD_VIRTUAL_PATH="$PATH"
+PATH="$VIRTUAL_ENV/bin:$PATH"
+export PATH
+
+# unset PYTHONHOME if set
+# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
+# could use `if (set -u; : $PYTHONHOME) ;` in bash
+if [ -n "${PYTHONHOME:-}" ] ; then
+    _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
+    unset PYTHONHOME
+fi
+
+if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
+    _OLD_VIRTUAL_PS1="${PS1:-}"
+    if [ "x(c_env) " != x ] ; then
+	PS1="(c_env) ${PS1:-}"
+    else
+    if [ "`basename \"$VIRTUAL_ENV\"`" = "__" ] ; then
+        # special case for Aspen magic directories
+        # see http://www.zetadev.com/software/aspen/
+        PS1="[`basename \`dirname \"$VIRTUAL_ENV\"\``] $PS1"
+    else
+        PS1="(`basename \"$VIRTUAL_ENV\"`)$PS1"
+    fi
+    fi
+    export PS1
+fi
+
+# This should detect bash and zsh, which have a hash command that must
+# be called to get it to forget past commands.  Without forgetting
+# past commands the $PATH changes we made may not be respected
+if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+    hash -r
+fi
diff --git a/c_env/bin/activate.csh b/c_env/bin/activate.csh
new file mode 100644
index 0000000..ea73156
--- /dev/null
+++ b/c_env/bin/activate.csh
@@ -0,0 +1,37 @@
+# This file must be used with "source bin/activate.csh" *from csh*.
+# You cannot run it directly.
+# Created by Davide Di Blasi <davidedb@gmail.com>.
+# Ported to Python 3.3 venv by Andrew Svetlov <andrew.svetlov@gmail.com>
+
+alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; test "\!:*" != "nondestructive" && unalias deactivate'
+
+# Unset irrelevant variables.
+deactivate nondestructive
+
+setenv VIRTUAL_ENV "/Users/chris/Desktop/Github/cartoGRAPHs/c_env"
+
+set _OLD_VIRTUAL_PATH="$PATH"
+setenv PATH "$VIRTUAL_ENV/bin:$PATH"
+
+
+set _OLD_VIRTUAL_PROMPT="$prompt"
+
+if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then
+    if ("c_env" != "") then
+        set env_name = "c_env"
+    else
+        if (`basename "VIRTUAL_ENV"` == "__") then
+            # special case for Aspen magic directories
+            # see http://www.zetadev.com/software/aspen/
+            set env_name = `basename \`dirname "$VIRTUAL_ENV"\``
+        else
+            set env_name = `basename "$VIRTUAL_ENV"`
+        endif
+    endif
+    set prompt = "[$env_name] $prompt"
+    unset env_name
+endif
+
+alias pydoc python -m pydoc
+
+rehash
diff --git a/c_env/bin/activate.fish b/c_env/bin/activate.fish
new file mode 100644
index 0000000..3e8272f
--- /dev/null
+++ b/c_env/bin/activate.fish
@@ -0,0 +1,75 @@
+# This file must be used with ". bin/activate.fish" *from fish* (http://fishshell.org)
+# you cannot run it directly
+
+function deactivate  -d "Exit virtualenv and return to normal shell environment"
+    # reset old environment variables
+    if test -n "$_OLD_VIRTUAL_PATH"
+        set -gx PATH $_OLD_VIRTUAL_PATH
+        set -e _OLD_VIRTUAL_PATH
+    end
+    if test -n "$_OLD_VIRTUAL_PYTHONHOME"
+        set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME
+        set -e _OLD_VIRTUAL_PYTHONHOME
+    end
+
+    if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
+        functions -e fish_prompt
+        set -e _OLD_FISH_PROMPT_OVERRIDE
+        functions -c _old_fish_prompt fish_prompt
+        functions -e _old_fish_prompt
+    end
+
+    set -e VIRTUAL_ENV
+    if test "$argv[1]" != "nondestructive"
+        # Self destruct!
+        functions -e deactivate
+    end
+end
+
+# unset irrelevant variables
+deactivate nondestructive
+
+set -gx VIRTUAL_ENV "/Users/chris/Desktop/Github/cartoGRAPHs/c_env"
+
+set -gx _OLD_VIRTUAL_PATH $PATH
+set -gx PATH "$VIRTUAL_ENV/bin" $PATH
+
+# unset PYTHONHOME if set
+if set -q PYTHONHOME
+    set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME
+    set -e PYTHONHOME
+end
+
+if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
+    # fish uses a function instead of an env var to generate the prompt.
+
+    # save the current fish_prompt function as the function _old_fish_prompt
+    functions -c fish_prompt _old_fish_prompt
+
+    # with the original prompt function renamed, we can override with our own.
+    function fish_prompt
+        # Save the return status of the last command
+        set -l old_status $status
+
+        # Prompt override?
+        if test -n "(c_env) "
+            printf "%s%s" "(c_env) " (set_color normal)
+        else
+            # ...Otherwise, prepend env
+            set -l _checkbase (basename "$VIRTUAL_ENV")
+            if test $_checkbase = "__"
+                # special case for Aspen magic directories
+                # see http://www.zetadev.com/software/aspen/
+                printf "%s[%s]%s " (set_color -b blue white) (basename (dirname "$VIRTUAL_ENV")) (set_color normal)
+            else
+                printf "%s(%s)%s" (set_color -b blue white) (basename "$VIRTUAL_ENV") (set_color normal)
+            end
+        end
+
+        # Restore the return status of the previous command.
+        echo "exit $old_status" | .
+        _old_fish_prompt
+    end
+
+    set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
+end
diff --git a/c_env/bin/easy_install b/c_env/bin/easy_install
new file mode 100755
index 0000000..32e37f8
--- /dev/null
+++ b/c_env/bin/easy_install
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from setuptools.command.easy_install import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/easy_install-3.8 b/c_env/bin/easy_install-3.8
new file mode 100755
index 0000000..32e37f8
--- /dev/null
+++ b/c_env/bin/easy_install-3.8
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from setuptools.command.easy_install import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/f2py b/c_env/bin/f2py
new file mode 100755
index 0000000..cca1569
--- /dev/null
+++ b/c_env/bin/f2py
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from numpy.f2py.f2py2e import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/f2py3 b/c_env/bin/f2py3
new file mode 100755
index 0000000..cca1569
--- /dev/null
+++ b/c_env/bin/f2py3
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from numpy.f2py.f2py2e import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/f2py3.8 b/c_env/bin/f2py3.8
new file mode 100755
index 0000000..cca1569
--- /dev/null
+++ b/c_env/bin/f2py3.8
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from numpy.f2py.f2py2e import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/hti b/c_env/bin/hti
new file mode 100755
index 0000000..fc38be6
--- /dev/null
+++ b/c_env/bin/hti
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from html2image import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/html2image b/c_env/bin/html2image
new file mode 100755
index 0000000..fc38be6
--- /dev/null
+++ b/c_env/bin/html2image
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from html2image import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/igraph b/c_env/bin/igraph
new file mode 100755
index 0000000..e54ea12
--- /dev/null
+++ b/c_env/bin/igraph
@@ -0,0 +1,4 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+"""Small script to execute the igraph command line interface"""
+from igraph.app.shell import main
+main()
diff --git a/c_env/bin/jsonschema b/c_env/bin/jsonschema
new file mode 100755
index 0000000..baa9566
--- /dev/null
+++ b/c_env/bin/jsonschema
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from jsonschema.cli import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/jupyter b/c_env/bin/jupyter
new file mode 100755
index 0000000..a4dcbe6
--- /dev/null
+++ b/c_env/bin/jupyter
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from jupyter_core.command import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/jupyter-migrate b/c_env/bin/jupyter-migrate
new file mode 100755
index 0000000..4271c5d
--- /dev/null
+++ b/c_env/bin/jupyter-migrate
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from jupyter_core.migrate import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/jupyter-troubleshoot b/c_env/bin/jupyter-troubleshoot
new file mode 100755
index 0000000..5b54a99
--- /dev/null
+++ b/c_env/bin/jupyter-troubleshoot
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from jupyter_core.troubleshoot import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/jupyter-trust b/c_env/bin/jupyter-trust
new file mode 100755
index 0000000..5d85847
--- /dev/null
+++ b/c_env/bin/jupyter-trust
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from nbformat.sign import TrustNotebookApp
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(TrustNotebookApp.launch_instance())
diff --git a/c_env/bin/normalizer b/c_env/bin/normalizer
new file mode 100755
index 0000000..bda8c11
--- /dev/null
+++ b/c_env/bin/normalizer
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from charset_normalizer.cli.normalizer import cli_detect
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(cli_detect())
diff --git a/c_env/bin/numba b/c_env/bin/numba
new file mode 100644
index 0000000..380f59c
--- /dev/null
+++ b/c_env/bin/numba
@@ -0,0 +1,8 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: UTF-8 -*-
+from __future__ import print_function, division, absolute_import
+
+from numba.misc.numba_entry import main
+
+if __name__ == "__main__":
+    main()
diff --git a/c_env/bin/pip b/c_env/bin/pip
new file mode 100755
index 0000000..7592bdf
--- /dev/null
+++ b/c_env/bin/pip
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip._internal import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/pip3 b/c_env/bin/pip3
new file mode 100755
index 0000000..7592bdf
--- /dev/null
+++ b/c_env/bin/pip3
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip._internal import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/pip3.8 b/c_env/bin/pip3.8
new file mode 100755
index 0000000..7592bdf
--- /dev/null
+++ b/c_env/bin/pip3.8
@@ -0,0 +1,10 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip._internal import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/c_env/bin/pycc b/c_env/bin/pycc
new file mode 100644
index 0000000..93a6509
--- /dev/null
+++ b/c_env/bin/pycc
@@ -0,0 +1,3 @@
+#!/Users/chris/Desktop/Github/cartoGRAPHs/c_env/bin/python3
+from numba.pycc import main
+main()
diff --git a/c_env/bin/python b/c_env/bin/python
new file mode 120000
index 0000000..b8a0adb
--- /dev/null
+++ b/c_env/bin/python
@@ -0,0 +1 @@
+python3
\ No newline at end of file
diff --git a/c_env/bin/python3 b/c_env/bin/python3
new file mode 120000
index 0000000..df48980
--- /dev/null
+++ b/c_env/bin/python3
@@ -0,0 +1 @@
+/Users/chris/opt/anaconda3/bin/python3
\ No newline at end of file
diff --git a/c_env/etc/jupyter/nbconfig/notebook.d/plotlywidget.json b/c_env/etc/jupyter/nbconfig/notebook.d/plotlywidget.json
new file mode 100644
index 0000000..0cf990d
--- /dev/null
+++ b/c_env/etc/jupyter/nbconfig/notebook.d/plotlywidget.json
@@ -0,0 +1,5 @@
+{
+  "load_extensions": {
+    "plotlywidget/extension": true
+  }
+}
diff --git a/c_env/include/site/python3.8/python-igraph/igraphmodule_api.h b/c_env/include/site/python3.8/python-igraph/igraphmodule_api.h
new file mode 100644
index 0000000..1551ca5
--- /dev/null
+++ b/c_env/include/site/python3.8/python-igraph/igraphmodule_api.h
@@ -0,0 +1,86 @@
+/* -*- mode: C -*-  */
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* 
+   IGraph library.
+   Copyright (C) 2006-2012  Tamas Nepusz <ntamas@gmail.com>
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA 
+   02110-1301 USA
+
+*/
+
+#ifndef Py_IGRAPHMODULE_H
+#define Py_IGRAPHMODULE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* C API functions */
+#define PyIGraph_FromCGraph_NUM 0
+#define PyIGraph_FromCGraph_RETURN PyObject*
+#define PyIGraph_FromCGraph_PROTO (igraph_t *graph)
+
+#define PyIGraph_ToCGraph_NUM 1
+#define PyIGraph_ToCGraph_RETURN igraph_t*
+#define PyIGraph_ToCGraph_PROTO (PyObject *graph)
+
+/* Total number of C API pointers */
+#define PyIGraph_API_pointers 2
+
+#ifdef IGRAPH_MODULE
+  /* This section is used when compiling igraphmodule.c */
+  static PyIGraph_FromCGraph_RETURN PyIGraph_FromCGraph PyIGraph_FromCGraph_PROTO;
+  static PyIGraph_ToCGraph_RETURN PyIGraph_ToCGraph PyIGraph_ToCGraph_PROTO;
+#else
+  /* This section is used in modules that use igraph's API */
+  static void** PyIGraph_API;
+# define PyIGraph_FromCGraph \
+         (*(PyIGraph_FromCGraph_RETURN (*)PyIGraph_FromCGraph_PROTO) \
+		 PyIGraph_API[PyIGraph_FromCGraph_NUM])
+# define PyIGraph_ToCGraph \
+         (*(PyIGraph_ToCGraph_RETURN (*)PyIGraph_ToCGraph_PROTO) \
+		 PyIGraph_API[PyIGraph_ToCGraph_NUM])
+
+  /* Return -1 and set exception on error, 0 on success */
+  static int import_igraph(void) {
+    PyObject *c_api_object;
+    PyObject *module;
+
+    module = PyImport_ImportModule("igraph._igraph");
+    if (module == 0)
+      return -1;
+
+    c_api_object = PyObject_GetAttrString(module, "_C_API");
+    if (c_api_object == 0) {
+      Py_DECREF(module);
+      return -1;
+    }
+
+    if (PyCObject_Check(c_api_object))
+      PyIGraph_API = (void**)PyCObject_AsVoidPtr(c_api_object);
+
+    Py_DECREF(c_api_object);
+    Py_DECREF(module);
+    return 0;
+  }
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif   /* !defined(Py_IGRAPHMODULE_H) */
diff --git a/c_env/pyvenv.cfg b/c_env/pyvenv.cfg
new file mode 100644
index 0000000..d1df662
--- /dev/null
+++ b/c_env/pyvenv.cfg
@@ -0,0 +1,3 @@
+home = /Users/chris/opt/anaconda3/bin
+include-system-site-packages = false
+version = 3.8.2
diff --git a/c_env/share/doc/networkx-2.5/LICENSE.txt b/c_env/share/doc/networkx-2.5/LICENSE.txt
new file mode 100644
index 0000000..9b895b5
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/LICENSE.txt
@@ -0,0 +1,40 @@
+License
+=======
+
+NetworkX is distributed with the 3-clause BSD license.
+
+::
+
+   Copyright (C) 2004-2020, NetworkX Developers
+   Aric Hagberg <hagberg@lanl.gov>
+   Dan Schult <dschult@colgate.edu>
+   Pieter Swart <swart@lanl.gov>
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+
+     * Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+
+     * Redistributions in binary form must reproduce the above
+       copyright notice, this list of conditions and the following
+       disclaimer in the documentation and/or other materials provided
+       with the distribution.
+
+     * Neither the name of the NetworkX Developers nor the names of its
+       contributors may be used to endorse or promote products derived
+       from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/c_env/share/doc/networkx-2.5/examples/3d_drawing/README.txt b/c_env/share/doc/networkx-2.5/examples/3d_drawing/README.txt
new file mode 100644
index 0000000..1a76682
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/3d_drawing/README.txt
@@ -0,0 +1,2 @@
+3D Drawing
+----------
diff --git a/c_env/share/doc/networkx-2.5/examples/3d_drawing/mayavi2_spring.py b/c_env/share/doc/networkx-2.5/examples/3d_drawing/mayavi2_spring.py
new file mode 100644
index 0000000..7aa0b30
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/3d_drawing/mayavi2_spring.py
@@ -0,0 +1,41 @@
+"""
+=======
+Mayavi2
+=======
+
+"""
+
+import networkx as nx
+import numpy as np
+from mayavi import mlab
+
+# some graphs to try
+# H=nx.krackhardt_kite_graph()
+# H=nx.Graph();H.add_edge('a','b');H.add_edge('a','c');H.add_edge('a','d')
+# H=nx.grid_2d_graph(4,5)
+H = nx.cycle_graph(20)
+
+# reorder nodes from 0,len(G)-1
+G = nx.convert_node_labels_to_integers(H)
+# 3d spring layout
+pos = nx.spring_layout(G, dim=3)
+# numpy array of x,y,z positions in sorted node order
+xyz = np.array([pos[v] for v in sorted(G)])
+# scalar colors
+scalars = np.array(list(G.nodes())) + 5
+
+pts = mlab.points3d(
+    xyz[:, 0],
+    xyz[:, 1],
+    xyz[:, 2],
+    scalars,
+    scale_factor=0.1,
+    scale_mode="none",
+    colormap="Blues",
+    resolution=20,
+)
+
+pts.mlab_source.dataset.lines = np.array(list(G.edges()))
+tube = mlab.pipeline.tube(pts, tube_radius=0.01)
+mlab.pipeline.surface(tube, color=(0.8, 0.8, 0.8))
+mlab.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/README.txt b/c_env/share/doc/networkx-2.5/examples/README.txt
new file mode 100644
index 0000000..d0049bd
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/README.txt
@@ -0,0 +1,8 @@
+.. _examples_gallery:
+
+Gallery
+=======
+
+General-purpose and introductory examples for NetworkX.
+The `tutorial <../tutorial.html>`_ introduces conventions and basic graph
+manipulations.
diff --git a/c_env/share/doc/networkx-2.5/examples/advanced/README.txt b/c_env/share/doc/networkx-2.5/examples/advanced/README.txt
new file mode 100644
index 0000000..4519ce7
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/advanced/README.txt
@@ -0,0 +1,2 @@
+Advanced
+--------
diff --git a/c_env/share/doc/networkx-2.5/examples/advanced/plot_eigenvalues.py b/c_env/share/doc/networkx-2.5/examples/advanced/plot_eigenvalues.py
new file mode 100644
index 0000000..cc69e98
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/advanced/plot_eigenvalues.py
@@ -0,0 +1,22 @@
+"""
+===========
+Eigenvalues
+===========
+
+Create an G{n,m} random graph and compute the eigenvalues.
+"""
+import matplotlib.pyplot as plt
+import networkx as nx
+import numpy.linalg
+
+n = 1000  # 1000 nodes
+m = 5000  # 5000 edges
+G = nx.gnm_random_graph(n, m)
+
+L = nx.normalized_laplacian_matrix(G)
+e = numpy.linalg.eigvals(L.A)
+print("Largest eigenvalue:", max(e))
+print("Smallest eigenvalue:", min(e))
+plt.hist(e, bins=100)  # histogram with 100 bins
+plt.xlim(0, 2)  # eigenvalues between 0 and 2
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/advanced/plot_heavy_metal_umlaut.py b/c_env/share/doc/networkx-2.5/examples/advanced/plot_heavy_metal_umlaut.py
new file mode 100644
index 0000000..ef6cf1f
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/advanced/plot_heavy_metal_umlaut.py
@@ -0,0 +1,52 @@
+"""
+==================
+Heavy Metal Umlaut
+==================
+
+Example using unicode strings as graph labels.
+
+Also shows creative use of the Heavy Metal Umlaut:
+https://en.wikipedia.org/wiki/Heavy_metal_umlaut
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+hd = "H" + chr(252) + "sker D" + chr(252)
+mh = "Mot" + chr(246) + "rhead"
+mc = "M" + chr(246) + "tley Cr" + chr(252) + "e"
+st = "Sp" + chr(305) + "n" + chr(776) + "al Tap"
+q = "Queensr" + chr(255) + "che"
+boc = "Blue " + chr(214) + "yster Cult"
+dt = "Deatht" + chr(246) + "ngue"
+
+G = nx.Graph()
+G.add_edge(hd, mh)
+G.add_edge(mc, st)
+G.add_edge(boc, mc)
+G.add_edge(boc, dt)
+G.add_edge(st, dt)
+G.add_edge(q, st)
+G.add_edge(dt, mh)
+G.add_edge(st, mh)
+
+# write in UTF-8 encoding
+fh = open("edgelist.utf-8", "wb")
+nx.write_multiline_adjlist(G, fh, delimiter="\t", encoding="utf-8")
+
+# read and store in UTF-8
+fh = open("edgelist.utf-8", "rb")
+H = nx.read_multiline_adjlist(fh, delimiter="\t", encoding="utf-8")
+
+for n in G.nodes():
+    if n not in H:
+        print(False)
+
+print(list(G.nodes()))
+
+pos = nx.spring_layout(G)
+nx.draw(G, pos, font_size=16, with_labels=False)
+for p in pos:  # raise text positions
+    pos[p][1] += 0.07
+nx.draw_networkx_labels(G, pos)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/advanced/plot_iterated_dynamical_systems.py b/c_env/share/doc/networkx-2.5/examples/advanced/plot_iterated_dynamical_systems.py
new file mode 100644
index 0000000..1dde327
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/advanced/plot_iterated_dynamical_systems.py
@@ -0,0 +1,210 @@
+"""
+==========================
+Iterated Dynamical Systems
+==========================
+
+Digraphs from Integer-valued Iterated Functions
+
+Sums of cubes on 3N
+-------------------
+
+The number 153 has a curious property.
+
+Let 3N={3,6,9,12,...} be the set of positive multiples of 3.  Define an
+iterative process f:3N->3N as follows: for a given n, take each digit
+of n (in base 10), cube it and then sum the cubes to obtain f(n).
+
+When this process is repeated, the resulting series n, f(n), f(f(n)),...
+terminate in 153 after a finite number of iterations (the process ends
+because 153 = 1**3 + 5**3 + 3**3).
+
+In the language of discrete dynamical systems, 153 is the global
+attractor for the iterated map f restricted to the set 3N.
+
+For example: take the number 108
+
+f(108) = 1**3 + 0**3 + 8**3 = 513
+
+and
+
+f(513) = 5**3 + 1**3 + 3**3 = 153
+
+So, starting at 108 we reach 153 in two iterations,
+represented as:
+
+108->513->153
+
+Computing all orbits of 3N up to 10**5 reveals that the attractor
+153 is reached in a maximum of 14 iterations. In this code we
+show that 13 cycles is the maximum required for all integers (in 3N)
+less than 10,000.
+
+The smallest number that requires 13 iterations to reach 153, is 177, i.e.,
+
+177->687->1071->345->216->225->141->66->432->99->1458->702->351->153
+
+The resulting large digraphs are useful for testing network software.
+
+The general problem
+-------------------
+
+Given numbers n, a power p and base b, define F(n; p, b) as the sum of
+the digits of n (in base b) raised to the power p. The above example
+corresponds to f(n)=F(n; 3,10), and below F(n; p, b) is implemented as
+the function powersum(n,p,b). The iterative dynamical system defined by
+the mapping n:->f(n) above (over 3N) converges to a single fixed point;
+153. Applying the map to all positive integers N, leads to a discrete
+dynamical process with 5 fixed points: 1, 153, 370, 371, 407. Modulo 3
+those numbers are 1, 0, 1, 2, 2. The function f above has the added
+property that it maps a multiple of 3 to another multiple of 3; i.e. it
+is invariant on the subset 3N.
+
+
+The squaring of digits (in base 10) result in cycles and the
+single fixed point 1. I.e., from a certain point on, the process
+starts repeating itself.
+
+keywords: "Recurring Digital Invariant", "Narcissistic Number",
+"Happy Number"
+
+The 3n+1 problem
+----------------
+
+There is a rich history of mathematical recreations
+associated with discrete dynamical systems.  The most famous
+is the Collatz 3n+1 problem. See the function
+collatz_problem_digraph below. The Collatz conjecture
+--- that every orbit returns to the fixed point 1 in finite time
+--- is still unproven. Even the great Paul Erdos said "Mathematics
+is not yet ready for such problems", and offered $500
+for its solution.
+
+keywords: "3n+1", "3x+1", "Collatz problem", "Thwaite's conjecture"
+"""
+
+import networkx as nx
+
+nmax = 10000
+p = 3
+
+
+def digitsrep(n, b=10):
+    """Return list of digits comprising n represented in base b.
+    n must be a nonnegative integer"""
+
+    if n <= 0:
+        return [0]
+
+    dlist = []
+    while n > 0:
+        # Prepend next least-significant digit
+        dlist = [n % b] + dlist
+        # Floor-division
+        n = n // b
+    return dlist
+
+
+def powersum(n, p, b=10):
+    """Return sum of digits of n (in base b) raised to the power p."""
+    dlist = digitsrep(n, b)
+    sum = 0
+    for k in dlist:
+        sum += k ** p
+    return sum
+
+
+def attractor153_graph(n, p, multiple=3, b=10):
+    """Return digraph of iterations of powersum(n,3,10)."""
+    G = nx.DiGraph()
+    for k in range(1, n + 1):
+        if k % multiple == 0 and k not in G:
+            k1 = k
+            knext = powersum(k1, p, b)
+            while k1 != knext:
+                G.add_edge(k1, knext)
+                k1 = knext
+                knext = powersum(k1, p, b)
+    return G
+
+
+def squaring_cycle_graph_old(n, b=10):
+    """Return digraph of iterations of powersum(n,2,10)."""
+    G = nx.DiGraph()
+    for k in range(1, n + 1):
+        k1 = k
+        G.add_node(k1)  # case k1==knext, at least add node
+        knext = powersum(k1, 2, b)
+        G.add_edge(k1, knext)
+        while k1 != knext:  # stop if fixed point
+            k1 = knext
+            knext = powersum(k1, 2, b)
+            G.add_edge(k1, knext)
+            if G.out_degree(knext) >= 1:
+                # knext has already been iterated in and out
+                break
+    return G
+
+
+def sum_of_digits_graph(nmax, b=10):
+    def f(n):
+        return powersum(n, 1, b)
+
+    return discrete_dynamics_digraph(nmax, f)
+
+
+def squaring_cycle_digraph(nmax, b=10):
+    def f(n):
+        return powersum(n, 2, b)
+
+    return discrete_dynamics_digraph(nmax, f)
+
+
+def cubing_153_digraph(nmax):
+    def f(n):
+        return powersum(n, 3, 10)
+
+    return discrete_dynamics_digraph(nmax, f)
+
+
+def discrete_dynamics_digraph(nmax, f, itermax=50000):
+    G = nx.DiGraph()
+    for k in range(1, nmax + 1):
+        kold = k
+        G.add_node(kold)
+        knew = f(kold)
+        G.add_edge(kold, knew)
+        while kold != knew and kold << itermax:
+            # iterate until fixed point reached or itermax is exceeded
+            kold = knew
+            knew = f(kold)
+            G.add_edge(kold, knew)
+            if G.out_degree(knew) >= 1:
+                # knew has already been iterated in and out
+                break
+    return G
+
+
+def collatz_problem_digraph(nmax):
+    def f(n):
+        if n % 2 == 0:
+            return n // 2
+        else:
+            return 3 * n + 1
+
+    return discrete_dynamics_digraph(nmax, f)
+
+
+def fixed_points(G):
+    """Return a list of fixed points for the discrete dynamical
+    system represented by the digraph G.
+    """
+    return [n for n in G if G.out_degree(n) == 0]
+
+
+nmax = 10000
+print(f"Building cubing_153_digraph({nmax})")
+G = cubing_153_digraph(nmax)
+print("Resulting digraph has", len(G), "nodes and", G.size(), " edges")
+print("Shortest path from 177 to 153 is:")
+print(nx.shortest_path(G, 177, 153))
+print(f"fixed points are {fixed_points(G)}")
diff --git a/c_env/share/doc/networkx-2.5/examples/advanced/plot_parallel_betweenness.py b/c_env/share/doc/networkx-2.5/examples/advanced/plot_parallel_betweenness.py
new file mode 100644
index 0000000..7a27aba
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/advanced/plot_parallel_betweenness.py
@@ -0,0 +1,78 @@
+"""
+====================
+Parallel Betweenness
+====================
+
+Example of parallel implementation of betweenness centrality using the
+multiprocessing module from Python Standard Library.
+
+The function betweenness centrality accepts a bunch of nodes and computes
+the contribution of those nodes to the betweenness centrality of the whole
+network. Here we divide the network in chunks of nodes and we compute their
+contribution to the betweenness centrality of the whole network.
+"""
+
+from multiprocessing import Pool
+import time
+import itertools
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+
+def chunks(l, n):
+    """Divide a list of nodes `l` in `n` chunks"""
+    l_c = iter(l)
+    while 1:
+        x = tuple(itertools.islice(l_c, n))
+        if not x:
+            return
+        yield x
+
+
+def betweenness_centrality_parallel(G, processes=None):
+    """Parallel betweenness centrality  function"""
+    p = Pool(processes=processes)
+    node_divisor = len(p._pool) * 4
+    node_chunks = list(chunks(G.nodes(), int(G.order() / node_divisor)))
+    num_chunks = len(node_chunks)
+    bt_sc = p.starmap(
+        nx.betweenness_centrality_subset,
+        zip(
+            [G] * num_chunks,
+            node_chunks,
+            [list(G)] * num_chunks,
+            [True] * num_chunks,
+            [None] * num_chunks,
+        ),
+    )
+
+    # Reduce the partial solutions
+    bt_c = bt_sc[0]
+    for bt in bt_sc[1:]:
+        for n in bt:
+            bt_c[n] += bt[n]
+    return bt_c
+
+
+G_ba = nx.barabasi_albert_graph(1000, 3)
+G_er = nx.gnp_random_graph(1000, 0.01)
+G_ws = nx.connected_watts_strogatz_graph(1000, 4, 0.1)
+for G in [G_ba, G_er, G_ws]:
+    print("")
+    print("Computing betweenness centrality for:")
+    print(nx.info(G))
+    print("\tParallel version")
+    start = time.time()
+    bt = betweenness_centrality_parallel(G)
+    print(f"\t\tTime: {(time.time() - start):.4F} seconds")
+    print(f"\t\tBetweenness centrality for node 0: {bt[0]:.5f}")
+    print("\tNon-Parallel version")
+    start = time.time()
+    bt = nx.betweenness_centrality(G)
+    print(f"\t\tTime: {(time.time() - start):.4F} seconds")
+    print(f"\t\tBetweenness centrality for node 0: {bt[0]:.5f}")
+print("")
+
+nx.draw(G_ba, node_size=100)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/README.txt b/c_env/share/doc/networkx-2.5/examples/algorithms/README.txt
new file mode 100644
index 0000000..a78a4d7
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/README.txt
@@ -0,0 +1,2 @@
+Algorithms
+----------
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/hartford_drug.edgelist b/c_env/share/doc/networkx-2.5/examples/algorithms/hartford_drug.edgelist
new file mode 100644
index 0000000..c1e92c8
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/hartford_drug.edgelist
@@ -0,0 +1,338 @@
+# source target
+1 2
+1 10
+2 1
+2 10
+3 7
+4 7
+4 209
+5 132
+6 150
+7 3
+7 4
+7 9
+8 106
+8 115
+9 1
+9 2
+9 7
+10 1
+10 2
+11 133
+11 218
+12 88
+13 214
+14 24
+14 52
+16 10
+16 19
+17 64
+17 78
+18 55
+18 103
+18 163
+19 18
+20 64
+20 180
+21 16
+21 22
+22 21
+22 64
+22 106
+23 20
+23 22
+23 64
+24 14
+24 31
+24 122
+27 115
+28 29
+29 28
+30 19
+31 24
+31 32
+31 122
+31 147
+31 233
+32 31
+32 86
+34 35
+34 37
+35 34
+35 43
+36 132
+36 187
+37 38
+37 90
+37 282
+38 42
+38 43
+38 210
+40 20
+42 15
+42 38
+43 34
+43 35
+43 38
+45 107
+46 61
+46 72
+48 23
+49 30
+49 64
+49 108
+49 115
+49 243
+50 30
+50 47
+50 55
+50 125
+50 163
+52 218
+52 224
+54 111
+54 210
+55 65
+55 67
+55 105
+55 108
+55 222
+56 18
+56 64
+57 65
+57 125
+58 20
+58 30
+58 50
+58 103
+58 180
+59 164
+63 125
+64 8
+64 50
+64 70
+64 256
+66 20
+66 84
+66 106
+66 125
+67 22
+67 50
+67 113
+68 50
+70 50
+70 64
+71 72
+74 29
+74 75
+74 215
+75 74
+75 215
+76 58
+76 104
+77 103
+78 64
+78 68
+80 207
+80 210
+82 8
+82 77
+82 83
+82 97
+82 163
+83 82
+83 226
+83 243
+84 29
+84 154
+87 101
+87 189
+89 90
+90 89
+90 94
+91 86
+92 19
+92 30
+92 106
+94 72
+94 89
+94 90
+95 30
+96 75
+96 256
+97 80
+97 128
+98 86
+100 86
+101 87
+103 77
+103 104
+104 58
+104 77
+104 103
+106 22
+107 38
+107 114
+107 122
+108 49
+108 55
+111 121
+111 128
+111 210
+113 253
+114 107
+116 30
+116 140
+118 129
+118 138
+120 88
+121 128
+122 31
+123 32
+124 244
+125 132
+126 163
+126 180
+128 38
+128 111
+129 118
+132 29
+132 30
+133 30
+134 135
+134 150
+135 134
+137 144
+138 118
+138 129
+139 142
+141 157
+141 163
+142 139
+143 2
+144 137
+145 151
+146 137
+146 165
+146 169
+146 171
+147 31
+147 128
+148 146
+148 169
+148 171
+148 282
+149 128
+149 148
+149 172
+150 86
+151 145
+152 4
+153 134
+154 155
+156 161
+157 141
+161 156
+165 144
+165 148
+167 149
+169 15
+169 148
+169 171
+170 115
+170 173
+170 183
+170 202
+171 72
+171 148
+171 169
+173 170
+175 100
+176 10
+178 181
+181 178
+182 38
+182 171
+183 96
+185 50
+186 127
+187 50
+187 65
+188 30
+188 50
+189 87
+189 89
+190 35
+190 38
+190 122
+190 182
+191 54
+191 118
+191 129
+191 172
+192 149
+192 167
+195 75
+197 50
+197 188
+198 218
+198 221
+198 222
+200 65
+200 220
+201 113
+202 156
+203 232
+204 194
+207 38
+207 122
+207 124
+208 30
+208 50
+210 38
+210 207
+211 37
+213 35
+213 38
+214 13
+214 14
+214 171
+214 213
+215 75
+217 39
+218 68
+218 222
+221 198
+222 198
+222 218
+223 39
+225 3
+226 22
+229 65
+230 68
+231 43
+232 95
+232 203
+233 99
+234 68
+234 230
+237 244
+238 145
+242 3
+242 113
+244 237
+249 96
+250 156
+252 65
+254 65
+258 113
+268 4
+270 183
+272 6
+275 96
+280 183
+280 206
+282 37
+285 75
+290 285
+293 290
\ No newline at end of file
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/plot_beam_search.py b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_beam_search.py
new file mode 100644
index 0000000..fd6a21a
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_beam_search.py
@@ -0,0 +1,109 @@
+"""
+===========
+Beam Search
+===========
+
+Beam search with dynamic beam width.
+
+The progressive widening beam search repeatedly executes a beam search
+with increasing beam width until the target node is found.
+"""
+import math
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+
+def progressive_widening_search(G, source, value, condition, initial_width=1):
+    """Progressive widening beam search to find a node.
+
+    The progressive widening beam search involves a repeated beam
+    search, starting with a small beam width then extending to
+    progressively larger beam widths if the target node is not
+    found. This implementation simply returns the first node found that
+    matches the termination condition.
+
+    `G` is a NetworkX graph.
+
+    `source` is a node in the graph. The search for the node of interest
+    begins here and extends only to those nodes in the (weakly)
+    connected component of this node.
+
+    `value` is a function that returns a real number indicating how good
+    a potential neighbor node is when deciding which neighbor nodes to
+    enqueue in the breadth-first search. Only the best nodes within the
+    current beam width will be enqueued at each step.
+
+    `condition` is the termination condition for the search. This is a
+    function that takes a node as input and return a Boolean indicating
+    whether the node is the target. If no node matches the termination
+    condition, this function raises :exc:`NodeNotFound`.
+
+    `initial_width` is the starting beam width for the beam search (the
+    default is one). If no node matching the `condition` is found with
+    this beam width, the beam search is restarted from the `source` node
+    with a beam width that is twice as large (so the beam width
+    increases exponentially). The search terminates after the beam width
+    exceeds the number of nodes in the graph.
+
+    """
+    # Check for the special case in which the source node satisfies the
+    # termination condition.
+    if condition(source):
+        return source
+    # The largest possible value of `i` in this range yields a width at
+    # least the number of nodes in the graph, so the final invocation of
+    # `bfs_beam_edges` is equivalent to a plain old breadth-first
+    # search. Therefore, all nodes will eventually be visited.
+    log_m = math.ceil(math.log2(len(G)))
+    for i in range(log_m):
+        width = initial_width * pow(2, i)
+        # Since we are always starting from the same source node, this
+        # search may visit the same nodes many times (depending on the
+        # implementation of the `value` function).
+        for u, v in nx.bfs_beam_edges(G, source, value, width):
+            if condition(v):
+                return v
+    # At this point, since all nodes have been visited, we know that
+    # none of the nodes satisfied the termination condition.
+    raise nx.NodeNotFound("no node satisfied the termination condition")
+
+
+###############################################################################
+# Search for a node with high centrality.
+# ---------------------------------------
+#
+# We generate a random graph, compute the centrality of each node, then perform
+# the progressive widening search in order to find a node of high centrality.
+
+G = nx.gnp_random_graph(100, 0.5)
+centrality = nx.eigenvector_centrality(G)
+avg_centrality = sum(centrality.values()) / len(G)
+
+
+def has_high_centrality(v):
+    return centrality[v] >= avg_centrality
+
+
+source = 0
+value = centrality.get
+condition = has_high_centrality
+
+found_node = progressive_widening_search(G, source, value, condition)
+c = centrality[found_node]
+print(f"found node {found_node} with centrality {c}")
+
+
+# Draw graph
+pos = nx.spring_layout(G)
+options = {
+    "node_color": "blue",
+    "node_size": 20,
+    "edge_color": "grey",
+    "linewidths": 0,
+    "width": 0.1,
+}
+nx.draw(G, pos, **options)
+# Draw node with high centrality as large and red
+nx.draw_networkx_nodes(G, pos, nodelist=[found_node], node_size=100, node_color="r")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/plot_blockmodel.py b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_blockmodel.py
new file mode 100644
index 0000000..7b67f21
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_blockmodel.py
@@ -0,0 +1,79 @@
+"""
+==========
+Blockmodel
+==========
+
+Example of creating a block model using the quotient_graph function in NX.  Data
+used is the Hartford, CT drug users network::
+
+    @article{weeks2002social,
+      title={Social networks of drug users in high-risk sites: Finding the connections},
+      url = {https://doi.org/10.1023/A:1015457400897},
+      doi = {10.1023/A:1015457400897},
+      author={Weeks, Margaret R and Clair, Scott and Borgatti, Stephen P and Radda, Kim and Schensul, Jean J},
+      journal={{AIDS and Behavior}},
+      volume={6},
+      number={2},
+      pages={193--206},
+      year={2002},
+      publisher={Springer}
+    }
+
+"""
+
+from collections import defaultdict
+
+import matplotlib.pyplot as plt
+import networkx as nx
+import numpy
+from scipy.cluster import hierarchy
+from scipy.spatial import distance
+
+
+def create_hc(G):
+    """Creates hierarchical cluster of graph G from distance matrix"""
+    path_length = nx.all_pairs_shortest_path_length(G)
+    distances = numpy.zeros((len(G), len(G)))
+    for u, p in path_length:
+        for v, d in p.items():
+            distances[u][v] = d
+    # Create hierarchical cluster
+    Y = distance.squareform(distances)
+    Z = hierarchy.complete(Y)  # Creates HC using farthest point linkage
+    # This partition selection is arbitrary, for illustrive purposes
+    membership = list(hierarchy.fcluster(Z, t=1.15))
+    # Create collection of lists for blockmodel
+    partition = defaultdict(list)
+    for n, p in zip(list(range(len(G))), membership):
+        partition[p].append(n)
+    return list(partition.values())
+
+
+G = nx.read_edgelist("hartford_drug.edgelist")
+
+# Extract largest connected component into graph H
+H = G.subgraph(next(nx.connected_components(G)))
+# Makes life easier to have consecutively labeled integer nodes
+H = nx.convert_node_labels_to_integers(H)
+# Create parititions with hierarchical clustering
+partitions = create_hc(H)
+# Build blockmodel graph
+BM = nx.quotient_graph(H, partitions, relabel=True)
+
+# Draw original graph
+pos = nx.spring_layout(H, iterations=100)
+plt.subplot(211)
+nx.draw(H, pos, with_labels=False, node_size=10)
+
+# Draw block model with weighted edges and nodes sized by number of internal nodes
+node_size = [BM.nodes[x]["nnodes"] * 10 for x in BM.nodes()]
+edge_width = [(2 * d["weight"]) for (u, v, d) in BM.edges(data=True)]
+# Set positions to mean of positions of internal nodes from original graph
+posBM = {}
+for n in BM:
+    xy = numpy.array([pos[u] for u in BM.nodes[n]["graph"]])
+    posBM[n] = xy.mean(axis=0)
+plt.subplot(212)
+nx.draw(BM, posBM, node_size=node_size, width=edge_width, with_labels=False)
+plt.axis("off")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/plot_davis_club.py b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_davis_club.py
new file mode 100644
index 0000000..57b4c3d
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_davis_club.py
@@ -0,0 +1,42 @@
+"""
+==========
+Davis Club
+==========
+
+Davis Southern Club Women
+
+Shows how to make unipartite projections of the graph and compute the
+properties of those graphs.
+
+These data were collected by Davis et al. in the 1930s.
+They represent observed attendance at 14 social events by 18 Southern women.
+The graph is bipartite (clubs, women).
+"""
+import matplotlib.pyplot as plt
+import networkx as nx
+import networkx.algorithms.bipartite as bipartite
+
+G = nx.davis_southern_women_graph()
+women = G.graph["top"]
+clubs = G.graph["bottom"]
+
+print("Biadjacency matrix")
+print(bipartite.biadjacency_matrix(G, women, clubs))
+
+# project bipartite graph onto women nodes
+W = bipartite.projected_graph(G, women)
+print()
+print("#Friends, Member")
+for w in women:
+    print(f"{W.degree(w)} {w}")
+
+# project bipartite graph onto women nodes keeping number of co-occurence
+# the degree computed is weighted and counts the total number of shared contacts
+W = bipartite.weighted_projected_graph(G, women)
+print()
+print("#Friend meetings, Member")
+for w in women:
+    print(f"{W.degree(w, weight='weight')} {w}")
+
+nx.draw(G)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/plot_decomposition.py b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_decomposition.py
new file mode 100644
index 0000000..7b83a71
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_decomposition.py
@@ -0,0 +1,40 @@
+"""
+=============
+Decomposition
+=============
+
+Example of creating a junction tree from a directed graph.
+"""
+
+import networkx as nx
+from networkx.algorithms import moral
+from networkx.algorithms.tree.decomposition import junction_tree
+from networkx.drawing.nx_agraph import graphviz_layout as layout
+import matplotlib.pyplot as plt
+
+B = nx.DiGraph()
+B.add_nodes_from(["A", "B", "C", "D", "E", "F"])
+B.add_edges_from(
+    [("A", "B"), ("A", "C"), ("B", "D"), ("B", "F"), ("C", "E"), ("E", "F")]
+)
+
+options = {"with_labels": True, "node_color": "white", "edgecolors": "blue"}
+
+bayes_pos = layout(B, prog="neato")
+ax1 = plt.subplot(1, 3, 1)
+plt.title("Bayesian Network")
+nx.draw_networkx(B, pos=bayes_pos, **options)
+
+mg = moral.moral_graph(B)
+plt.subplot(1, 3, 2, sharex=ax1, sharey=ax1)
+plt.title("Moralized Graph")
+nx.draw_networkx(mg, pos=bayes_pos, **options)
+
+jt = junction_tree(B)
+plt.subplot(1, 3, 3)
+plt.title("Junction Tree")
+nsize = [2000 * len(n) for n in list(jt.nodes())]
+nx.draw_networkx(jt, pos=layout(jt, prog="neato"), node_size=nsize, **options)
+
+plt.tight_layout()
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/plot_krackhardt_centrality.py b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_krackhardt_centrality.py
new file mode 100644
index 0000000..5ce838b
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_krackhardt_centrality.py
@@ -0,0 +1,30 @@
+"""
+=====================
+Krackhardt Centrality
+=====================
+
+Centrality measures of Krackhardt social network.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.krackhardt_kite_graph()
+
+print("Betweenness")
+b = nx.betweenness_centrality(G)
+for v in G.nodes():
+    print(f"{v:2} {b[v]:.3f}")
+
+print("Degree centrality")
+d = nx.degree_centrality(G)
+for v in G.nodes():
+    print(f"{v:2} {d[v]:.3f}")
+
+print("Closeness centrality")
+c = nx.closeness_centrality(G)
+for v in G.nodes():
+    print(f"{v:2} {c[v]:.3f}")
+
+nx.draw(G)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/algorithms/plot_rcm.py b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_rcm.py
new file mode 100644
index 0000000..8ea926e
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/algorithms/plot_rcm.py
@@ -0,0 +1,35 @@
+"""
+===
+Rcm
+===
+
+Cuthill-McKee ordering of matrices
+
+The reverse Cuthill-McKee algorithm gives a sparse matrix ordering that
+reduces the matrix bandwidth.
+"""
+
+import networkx as nx
+from networkx.utils import reverse_cuthill_mckee_ordering
+import numpy as np
+
+# build low-bandwidth numpy matrix
+G = nx.grid_2d_graph(3, 3)
+rcm = list(reverse_cuthill_mckee_ordering(G))
+print("ordering", rcm)
+
+print("unordered Laplacian matrix")
+A = nx.laplacian_matrix(G)
+x, y = np.nonzero(A)
+# print(f"lower bandwidth: {(y - x).max()}")
+# print(f"upper bandwidth: {(x - y).max()}")
+print(f"bandwidth: {(y - x).max() + (x - y).max() + 1}")
+print(A)
+
+B = nx.laplacian_matrix(G, nodelist=rcm)
+print("low-bandwidth Laplacian matrix")
+x, y = np.nonzero(B)
+# print(f"lower bandwidth: {(y - x).max()}")
+# print(f"upper bandwidth: {(x - y).max()}")
+print(f"bandwidth: {(y - x).max() + (x - y).max() + 1}")
+print(B)
diff --git a/c_env/share/doc/networkx-2.5/examples/basic/README.txt b/c_env/share/doc/networkx-2.5/examples/basic/README.txt
new file mode 100644
index 0000000..c1cc18b
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/basic/README.txt
@@ -0,0 +1,2 @@
+Basic
+-----
diff --git a/c_env/share/doc/networkx-2.5/examples/basic/plot_properties.py b/c_env/share/doc/networkx-2.5/examples/basic/plot_properties.py
new file mode 100644
index 0000000..0b057df
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/basic/plot_properties.py
@@ -0,0 +1,48 @@
+"""
+==========
+Properties
+==========
+
+Compute some network properties for the lollipop graph.
+"""
+
+import matplotlib.pyplot as plt
+from networkx import nx
+
+G = nx.lollipop_graph(4, 6)
+
+pathlengths = []
+
+print("source vertex {target:length, }")
+for v in G.nodes():
+    spl = dict(nx.single_source_shortest_path_length(G, v))
+    print(f"{v} {spl} ")
+    for p in spl:
+        pathlengths.append(spl[p])
+
+print()
+print(f"average shortest path length {sum(pathlengths) / len(pathlengths)}")
+
+# histogram of path lengths
+dist = {}
+for p in pathlengths:
+    if p in dist:
+        dist[p] += 1
+    else:
+        dist[p] = 1
+
+print()
+print("length #paths")
+verts = dist.keys()
+for d in sorted(verts):
+    print(f"{d} {dist[d]}")
+
+print(f"radius: {nx.radius(G)}")
+print(f"diameter: {nx.diameter(G)}")
+print(f"eccentricity: {nx.eccentricity(G)}")
+print(f"center: {nx.center(G)}")
+print(f"periphery: {nx.periphery(G)}")
+print(f"density: {nx.density(G)}")
+
+nx.draw(G, with_labels=True)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/basic/plot_read_write.py b/c_env/share/doc/networkx-2.5/examples/basic/plot_read_write.py
new file mode 100644
index 0000000..f1e6487
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/basic/plot_read_write.py
@@ -0,0 +1,23 @@
+"""
+======================
+Read and write graphs.
+======================
+
+Read and write graphs.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.grid_2d_graph(5, 5)  # 5x5 grid
+
+# print the adjacency list
+for line in nx.generate_adjlist(G):
+    print(line)
+# write edgelist to grid.edgelist
+nx.write_edgelist(G, path="grid.edgelist", delimiter=":")
+# read edgelist from grid.edgelist
+H = nx.read_edgelist(path="grid.edgelist", delimiter=":")
+
+nx.draw(H)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/README.txt b/c_env/share/doc/networkx-2.5/examples/drawing/README.txt
new file mode 100644
index 0000000..c25993d
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/README.txt
@@ -0,0 +1,2 @@
+Drawing
+-------
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/chess_masters_WCC.pgn.bz2 b/c_env/share/doc/networkx-2.5/examples/drawing/chess_masters_WCC.pgn.bz2
new file mode 100644
index 0000000..3761ce5
Binary files /dev/null and b/c_env/share/doc/networkx-2.5/examples/drawing/chess_masters_WCC.pgn.bz2 differ
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/knuth_miles.txt.gz b/c_env/share/doc/networkx-2.5/examples/drawing/knuth_miles.txt.gz
new file mode 100644
index 0000000..62b7f95
Binary files /dev/null and b/c_env/share/doc/networkx-2.5/examples/drawing/knuth_miles.txt.gz differ
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/lanl_routes.edgelist b/c_env/share/doc/networkx-2.5/examples/drawing/lanl_routes.edgelist
new file mode 100644
index 0000000..db83181
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/lanl_routes.edgelist
@@ -0,0 +1,1363 @@
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diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_atlas.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_atlas.py
new file mode 100644
index 0000000..6bf00f1
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_atlas.py
@@ -0,0 +1,73 @@
+"""
+=====
+Atlas
+=====
+
+Atlas of all graphs of 6 nodes or less.
+"""
+
+import random
+
+# This example needs Graphviz and either PyGraphviz or pydot.
+# from networkx.drawing.nx_pydot import graphviz_layout
+from networkx.drawing.nx_agraph import graphviz_layout
+
+import matplotlib.pyplot as plt
+
+import networkx as nx
+from networkx.algorithms.isomorphism.isomorph import (
+    graph_could_be_isomorphic as isomorphic,
+)
+from networkx.generators.atlas import graph_atlas_g
+
+
+def atlas6():
+    """ Return the atlas of all connected graphs of 6 nodes or less.
+        Attempt to check for isomorphisms and remove.
+    """
+
+    Atlas = graph_atlas_g()[0:208]  # 208
+    # remove isolated nodes, only connected graphs are left
+    U = nx.Graph()  # graph for union of all graphs in atlas
+    for G in Atlas:
+        zerodegree = [n for n in G if G.degree(n) == 0]
+        for n in zerodegree:
+            G.remove_node(n)
+        U = nx.disjoint_union(U, G)
+
+    # iterator of graphs of all connected components
+    C = (U.subgraph(c) for c in nx.connected_components(U))
+
+    UU = nx.Graph()
+    # do quick isomorphic-like check, not a true isomorphism checker
+    nlist = []  # list of nonisomorphic graphs
+    for G in C:
+        # check against all nonisomorphic graphs so far
+        if not iso(G, nlist):
+            nlist.append(G)
+            UU = nx.disjoint_union(UU, G)  # union the nonisomorphic graphs
+    return UU
+
+
+def iso(G1, glist):
+    """Quick and dirty nonisomorphism checker used to check isomorphisms."""
+    for G2 in glist:
+        if isomorphic(G1, G2):
+            return True
+    return False
+
+
+G = atlas6()
+
+print(f"graph has {nx.number_of_nodes(G)} nodes with {nx.number_of_edges(G)} edges")
+print(nx.number_connected_components(G), "connected components")
+
+plt.figure(1, figsize=(8, 8))
+# layout graphs with positions using graphviz neato
+pos = graphviz_layout(G, prog="neato")
+# color nodes the same in each connected subgraph
+C = (G.subgraph(c) for c in nx.connected_components(G))
+for g in C:
+    c = [random.random()] * nx.number_of_nodes(g)  # random color...
+    nx.draw(g, pos, node_size=40, node_color=c, vmin=0.0, vmax=1.0, with_labels=False)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_chess_masters.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_chess_masters.py
new file mode 100644
index 0000000..35f47d7
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_chess_masters.py
@@ -0,0 +1,147 @@
+"""
+=============
+Chess Masters
+=============
+
+An example of the MultiDiGraph clas
+
+The function chess_pgn_graph reads a collection of chess matches stored in the
+specified PGN file (PGN ="Portable Game Notation").  Here the (compressed)
+default file::
+
+    chess_masters_WCC.pgn.bz2
+
+contains all 685 World Chess Championship matches from 1886--1985.
+(data from http://chessproblem.my-free-games.com/chess/games/Download-PGN.php)
+
+The `chess_pgn_graph()` function returns a `MultiDiGraph` with multiple edges.
+Each node is the last name of a chess master. Each edge is directed from white
+to black and contains selected game info.
+
+The key statement in `chess_pgn_graph` below is::
+
+    G.add_edge(white, black, game_info)
+
+where `game_info` is a `dict` describing each game.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+# tag names specifying what game info should be
+# stored in the dict on each digraph edge
+game_details = ["Event", "Date", "Result", "ECO", "Site"]
+
+
+def chess_pgn_graph(pgn_file="chess_masters_WCC.pgn.bz2"):
+    """Read chess games in pgn format in pgn_file.
+
+    Filenames ending in .gz or .bz2 will be uncompressed.
+
+    Return the MultiDiGraph of players connected by a chess game.
+    Edges contain game data in a dict.
+
+    """
+    import bz2
+
+    G = nx.MultiDiGraph()
+    game = {}
+    datafile = bz2.BZ2File(pgn_file)
+    lines = (line.decode().rstrip("\r\n") for line in datafile)
+    for line in lines:
+        if line.startswith("["):
+            tag, value = line[1:-1].split(" ", 1)
+            game[str(tag)] = value.strip('"')
+        else:
+            # empty line after tag set indicates
+            # we finished reading game info
+            if game:
+                white = game.pop("White")
+                black = game.pop("Black")
+                G.add_edge(white, black, **game)
+                game = {}
+    return G
+
+
+G = chess_pgn_graph()
+
+ngames = G.number_of_edges()
+nplayers = G.number_of_nodes()
+
+print(f"Loaded {ngames} chess games between {nplayers} players\n")
+
+# identify connected components
+# of the undirected version
+H = G.to_undirected()
+Gcc = [H.subgraph(c) for c in nx.connected_components(H)]
+if len(Gcc) > 1:
+    print("Note the disconnected component consisting of:")
+    print(Gcc[1].nodes())
+
+# find all games with B97 opening (as described in ECO)
+openings = {game_info["ECO"] for (white, black, game_info) in G.edges(data=True)}
+print(f"\nFrom a total of {len(openings)} different openings,")
+print("the following games used the Sicilian opening")
+print('with the Najdorff 7...Qb6 "Poisoned Pawn" variation.\n')
+
+for (white, black, game_info) in G.edges(data=True):
+    if game_info["ECO"] == "B97":
+        print(white, "vs", black)
+        for k, v in game_info.items():
+            print("   ", k, ": ", v)
+        print("\n")
+
+# make new undirected graph H without multi-edges
+H = nx.Graph(G)
+
+# edge width is proportional number of games played
+edgewidth = []
+for (u, v, d) in H.edges(data=True):
+    edgewidth.append(len(G.get_edge_data(u, v)))
+
+# node size is proportional to number of games won
+wins = dict.fromkeys(G.nodes(), 0.0)
+for (u, v, d) in G.edges(data=True):
+    r = d["Result"].split("-")
+    if r[0] == "1":
+        wins[u] += 1.0
+    elif r[0] == "1/2":
+        wins[u] += 0.5
+        wins[v] += 0.5
+    else:
+        wins[v] += 1.0
+try:
+    pos = nx.nx_agraph.graphviz_layout(H)
+except ImportError:
+    pos = nx.spring_layout(H, iterations=20)
+
+plt.rcParams["text.usetex"] = False
+plt.figure(figsize=(8, 8))
+nx.draw_networkx_edges(H, pos, alpha=0.3, width=edgewidth, edge_color="m")
+nodesize = [wins[v] * 50 for v in H]
+nx.draw_networkx_nodes(H, pos, node_size=nodesize, node_color="w", alpha=0.4)
+nx.draw_networkx_edges(H, pos, alpha=0.4, node_size=0, width=1, edge_color="k")
+nx.draw_networkx_labels(H, pos, font_size=14)
+font = {"fontname": "Helvetica", "color": "k", "fontweight": "bold", "fontsize": 14}
+plt.title("World Chess Championship Games: 1886 - 1985", font)
+
+# change font and write text (using data coordinates)
+font = {"fontname": "Helvetica", "color": "r", "fontweight": "bold", "fontsize": 14}
+
+plt.text(
+    0.5,
+    0.97,
+    "edge width = # games played",
+    horizontalalignment="center",
+    transform=plt.gca().transAxes,
+)
+plt.text(
+    0.5,
+    0.94,
+    "node size = # games won",
+    horizontalalignment="center",
+    transform=plt.gca().transAxes,
+)
+
+plt.axis("off")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_circular_tree.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_circular_tree.py
new file mode 100644
index 0000000..b7db4b3
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_circular_tree.py
@@ -0,0 +1,20 @@
+"""
+=============
+Circular Tree
+=============
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+# This example needs Graphviz and either PyGraphviz or pydot
+# from networkx.drawing.nx_pydot import graphviz_layout
+from networkx.drawing.nx_agraph import graphviz_layout
+
+
+G = nx.balanced_tree(3, 5)
+pos = graphviz_layout(G, prog="twopi", args="")
+plt.figure(figsize=(8, 8))
+nx.draw(G, pos, node_size=20, alpha=0.5, node_color="blue", with_labels=False)
+plt.axis("equal")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_degree_histogram.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_degree_histogram.py
new file mode 100644
index 0000000..86d6b7c
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_degree_histogram.py
@@ -0,0 +1,35 @@
+"""
+================
+Degree histogram
+================
+
+Draw degree histogram with matplotlib.
+Random graph shown as inset
+"""
+import collections
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.gnp_random_graph(100, 0.02)
+
+degree_sequence = sorted([d for n, d in G.degree()], reverse=True)  # degree sequence
+degreeCount = collections.Counter(degree_sequence)
+deg, cnt = zip(*degreeCount.items())
+
+fig, ax = plt.subplots()
+plt.bar(deg, cnt, width=0.80, color="b")
+
+plt.title("Degree Histogram")
+plt.ylabel("Count")
+plt.xlabel("Degree")
+ax.set_xticks([d + 0.4 for d in deg])
+ax.set_xticklabels(deg)
+
+# draw graph in inset
+plt.axes([0.4, 0.4, 0.5, 0.5])
+Gcc = G.subgraph(sorted(nx.connected_components(G), key=len, reverse=True)[0])
+pos = nx.spring_layout(G)
+plt.axis("off")
+nx.draw_networkx_nodes(G, pos, node_size=20)
+nx.draw_networkx_edges(G, pos, alpha=0.4)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_degree_rank.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_degree_rank.py
new file mode 100644
index 0000000..61039cc
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_degree_rank.py
@@ -0,0 +1,29 @@
+"""
+===========
+Degree Rank
+===========
+
+Random graph from given degree sequence.
+Draw degree rank plot and graph with matplotlib.
+"""
+import networkx as nx
+import matplotlib.pyplot as plt
+
+G = nx.gnp_random_graph(100, 0.02)
+
+degree_sequence = sorted([d for n, d in G.degree()], reverse=True)
+dmax = max(degree_sequence)
+
+plt.loglog(degree_sequence, "b-", marker="o")
+plt.title("Degree rank plot")
+plt.ylabel("degree")
+plt.xlabel("rank")
+
+# draw graph in inset
+plt.axes([0.45, 0.45, 0.45, 0.45])
+Gcc = G.subgraph(sorted(nx.connected_components(G), key=len, reverse=True)[0])
+pos = nx.spring_layout(Gcc)
+plt.axis("off")
+nx.draw_networkx_nodes(Gcc, pos, node_size=20)
+nx.draw_networkx_edges(Gcc, pos, alpha=0.4)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_directed.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_directed.py
new file mode 100644
index 0000000..6c06257
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_directed.py
@@ -0,0 +1,44 @@
+"""
+==============
+Directed Graph
+==============
+
+Draw a graph with directed edges using a colormap and different node sizes.
+
+Edges have different colors and alphas (opacity). Drawn using matplotlib.
+"""
+
+import matplotlib as mpl
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.generators.directed.random_k_out_graph(10, 3, 0.5)
+pos = nx.layout.spring_layout(G)
+
+node_sizes = [3 + 10 * i for i in range(len(G))]
+M = G.number_of_edges()
+edge_colors = range(2, M + 2)
+edge_alphas = [(5 + i) / (M + 4) for i in range(M)]
+
+nodes = nx.draw_networkx_nodes(G, pos, node_size=node_sizes, node_color="blue")
+edges = nx.draw_networkx_edges(
+    G,
+    pos,
+    node_size=node_sizes,
+    arrowstyle="->",
+    arrowsize=10,
+    edge_color=edge_colors,
+    edge_cmap=plt.cm.Blues,
+    width=2,
+)
+# set alpha value for each edge
+for i in range(M):
+    edges[i].set_alpha(edge_alphas[i])
+
+pc = mpl.collections.PatchCollection(edges, cmap=plt.cm.Blues)
+pc.set_array(edge_colors)
+plt.colorbar(pc)
+
+ax = plt.gca()
+ax.set_axis_off()
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_edge_colormap.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_edge_colormap.py
new file mode 100644
index 0000000..eb2444b
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_edge_colormap.py
@@ -0,0 +1,23 @@
+"""
+=============
+Edge Colormap
+=============
+
+Draw a graph with matplotlib, color edges.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.star_graph(20)
+pos = nx.spring_layout(G)
+colors = range(20)
+options = {
+    "node_color": "#A0CBE2",
+    "edge_color": colors,
+    "width": 4,
+    "edge_cmap": plt.cm.Blues,
+    "with_labels": False,
+}
+nx.draw(G, pos, **options)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_ego_graph.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_ego_graph.py
new file mode 100644
index 0000000..002b2fd
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_ego_graph.py
@@ -0,0 +1,34 @@
+"""
+=========
+Ego Graph
+=========
+
+Example using the NetworkX ego_graph() function to return the main egonet of
+the largest hub in a Barabási-Albert network.
+"""
+
+from operator import itemgetter
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+# Create a BA model graph
+n = 1000
+m = 2
+G = nx.generators.barabasi_albert_graph(n, m)
+
+# find node with largest degree
+node_and_degree = G.degree()
+(largest_hub, degree) = sorted(node_and_degree, key=itemgetter(1))[-1]
+
+# Create ego graph of main hub
+hub_ego = nx.ego_graph(G, largest_hub)
+
+# Draw graph
+pos = nx.spring_layout(hub_ego)
+nx.draw(hub_ego, pos, node_color="b", node_size=50, with_labels=False)
+
+# Draw ego as large and red
+options = {"node_size": 300, "node_color": "r"}
+nx.draw_networkx_nodes(hub_ego, pos, nodelist=[largest_hub], **options)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_four_grids.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_four_grids.py
new file mode 100644
index 0000000..deb7096
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_four_grids.py
@@ -0,0 +1,29 @@
+"""
+==========
+Four Grids
+==========
+
+Draw a graph with matplotlib.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.grid_2d_graph(4, 4)  # 4x4 grid
+
+pos = nx.spring_layout(G, iterations=100)
+
+plt.subplot(221)
+nx.draw(G, pos, font_size=8)
+
+plt.subplot(222)
+nx.draw(G, pos, node_color="k", node_size=0, with_labels=False)
+
+plt.subplot(223)
+nx.draw(G, pos, node_color="g", node_size=250, with_labels=False, width=6)
+
+plt.subplot(224)
+H = G.to_directed()
+nx.draw(H, pos, node_color="b", node_size=20, with_labels=False)
+
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_giant_component.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_giant_component.py
new file mode 100644
index 0000000..c289bb3
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_giant_component.py
@@ -0,0 +1,51 @@
+"""
+===============
+Giant Component
+===============
+
+This example illustrates the sudden appearance of a
+giant connected component in a binomial random graph.
+"""
+
+import math
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+# This example needs Graphviz and either PyGraphviz or pydot.
+# from networkx.drawing.nx_pydot import graphviz_layout as layout
+from networkx.drawing.nx_agraph import graphviz_layout as layout
+
+# If you don't have pygraphviz or pydot, you can do this
+# layout = nx.spring_layout
+
+
+n = 150  # 150 nodes
+# p value at which giant component (of size log(n) nodes) is expected
+p_giant = 1.0 / (n - 1)
+# p value at which graph is expected to become completely connected
+p_conn = math.log(n) / float(n)
+
+# the following range of p values should be close to the threshold
+pvals = [0.003, 0.006, 0.008, 0.015]
+
+region = 220  # for pylab 2x2 subplot layout
+plt.subplots_adjust(left=0, right=1, bottom=0, top=0.95, wspace=0.01, hspace=0.01)
+for p in pvals:
+    G = nx.binomial_graph(n, p)
+    pos = layout(G)
+    region += 1
+    plt.subplot(region)
+    plt.title(f"p = {p:.3f}")
+    nx.draw(G, pos, with_labels=False, node_size=10)
+    # identify largest connected component
+    Gcc = sorted(nx.connected_components(G), key=len, reverse=True)
+    G0 = G.subgraph(Gcc[0])
+    nx.draw_networkx_edges(G0, pos, edge_color="r", width=6.0)
+    # show other connected components
+    for Gi in Gcc[1:]:
+        if len(Gi) > 1:
+            nx.draw_networkx_edges(
+                G.subgraph(Gi), pos, edge_color="r", alpha=0.3, width=5.0,
+            )
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_house_with_colors.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_house_with_colors.py
new file mode 100644
index 0000000..add6c0b
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_house_with_colors.py
@@ -0,0 +1,19 @@
+"""
+=================
+House With Colors
+=================
+
+Draw a graph with matplotlib.
+"""
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.house_graph()
+# explicitly set positions
+pos = {0: (0, 0), 1: (1, 0), 2: (0, 1), 3: (1, 1), 4: (0.5, 2.0)}
+
+nx.draw_networkx_nodes(G, pos, node_size=2000, nodelist=[4])
+nx.draw_networkx_nodes(G, pos, node_size=3000, nodelist=[0, 1, 2, 3], node_color="b")
+nx.draw_networkx_edges(G, pos, alpha=0.5, width=6)
+plt.axis("off")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_knuth_miles.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_knuth_miles.py
new file mode 100644
index 0000000..1a745f1
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_knuth_miles.py
@@ -0,0 +1,96 @@
+"""
+===========
+Knuth Miles
+===========
+
+`miles_graph()` returns an undirected graph over the 128 US cities from.  The
+cities each have location and population data.  The edges are labeled with the
+distance between the two cities.
+
+This example is described in Section 1.1 of
+
+    Donald E. Knuth, "The Stanford GraphBase: A Platform for Combinatorial
+    Computing", ACM Press, New York, 1993.
+    http://www-cs-faculty.stanford.edu/~knuth/sgb.html
+
+The data file can be found at:
+
+- https://github.com/networkx/networkx/blob/master/examples/drawing/knuth_miles.txt.gz
+"""
+
+import gzip
+import re
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+
+def miles_graph():
+    """ Return the cites example graph in miles_dat.txt
+        from the Stanford GraphBase.
+    """
+    # open file miles_dat.txt.gz (or miles_dat.txt)
+
+    fh = gzip.open("knuth_miles.txt.gz", "r")
+
+    G = nx.Graph()
+    G.position = {}
+    G.population = {}
+
+    cities = []
+    for line in fh.readlines():
+        line = line.decode()
+        if line.startswith("*"):  # skip comments
+            continue
+
+        numfind = re.compile(r"^\d+")
+
+        if numfind.match(line):  # this line is distances
+            dist = line.split()
+            for d in dist:
+                G.add_edge(city, cities[i], weight=int(d))
+                i = i + 1
+        else:  # this line is a city, position, population
+            i = 1
+            (city, coordpop) = line.split("[")
+            cities.insert(0, city)
+            (coord, pop) = coordpop.split("]")
+            (y, x) = coord.split(",")
+
+            G.add_node(city)
+            # assign position - flip x axis for matplotlib, shift origin
+            G.position[city] = (-int(x) + 7500, int(y) - 3000)
+            G.population[city] = float(pop) / 1000.0
+    return G
+
+
+G = miles_graph()
+
+print("Loaded miles_dat.txt containing 128 cities.")
+print(f"digraph has {nx.number_of_nodes(G)} nodes with {nx.number_of_edges(G)} edges")
+
+# make new graph of cites, edge if less then 300 miles between them
+H = nx.Graph()
+for v in G:
+    H.add_node(v)
+for (u, v, d) in G.edges(data=True):
+    if d["weight"] < 300:
+        H.add_edge(u, v)
+
+# draw with matplotlib/pylab
+plt.figure(figsize=(8, 8))
+# with nodes colored by degree sized by population
+node_color = [float(H.degree(v)) for v in H]
+nx.draw(
+    H,
+    G.position,
+    node_size=[G.population[v] for v in H],
+    node_color=node_color,
+    with_labels=False,
+)
+
+# scale the axes equally
+plt.xlim(-5000, 500)
+plt.ylim(-2000, 3500)
+
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_labels_and_colors.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_labels_and_colors.py
new file mode 100644
index 0000000..633b247
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_labels_and_colors.py
@@ -0,0 +1,52 @@
+"""
+=================
+Labels And Colors
+=================
+
+Draw a graph with matplotlib, color by degree.
+"""
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.cubical_graph()
+pos = nx.spring_layout(G)  # positions for all nodes
+
+# nodes
+options = {"node_size": 500, "alpha": 0.8}
+nx.draw_networkx_nodes(G, pos, nodelist=[0, 1, 2, 3], node_color="r", **options)
+nx.draw_networkx_nodes(G, pos, nodelist=[4, 5, 6, 7], node_color="b", **options)
+
+# edges
+nx.draw_networkx_edges(G, pos, width=1.0, alpha=0.5)
+nx.draw_networkx_edges(
+    G,
+    pos,
+    edgelist=[(0, 1), (1, 2), (2, 3), (3, 0)],
+    width=8,
+    alpha=0.5,
+    edge_color="r",
+)
+nx.draw_networkx_edges(
+    G,
+    pos,
+    edgelist=[(4, 5), (5, 6), (6, 7), (7, 4)],
+    width=8,
+    alpha=0.5,
+    edge_color="b",
+)
+
+
+# some math labels
+labels = {}
+labels[0] = r"$a$"
+labels[1] = r"$b$"
+labels[2] = r"$c$"
+labels[3] = r"$d$"
+labels[4] = r"$\alpha$"
+labels[5] = r"$\beta$"
+labels[6] = r"$\gamma$"
+labels[7] = r"$\delta$"
+nx.draw_networkx_labels(G, pos, labels, font_size=16)
+
+plt.axis("off")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_lanl_routes.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_lanl_routes.py
new file mode 100644
index 0000000..b1dfe9e
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_lanl_routes.py
@@ -0,0 +1,65 @@
+"""
+===========
+Lanl Routes
+===========
+
+Routes to LANL from 186 sites on the Internet.
+
+The data file can be found at:
+
+- https://github.com/networkx/networkx/blob/master/examples/drawing/lanl_routes.edgelist
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+# This example needs Graphviz and either PyGraphviz or pydot
+# from networkx.drawing.nx_pydot import graphviz_layout
+from networkx.drawing.nx_agraph import graphviz_layout
+
+
+def lanl_graph():
+    """ Return the lanl internet view graph from lanl.edges
+    """
+    try:
+        fh = open("lanl_routes.edgelist")
+    except OSError:
+        print("lanl.edges not found")
+        raise
+
+    G = nx.Graph()
+
+    time = {}
+    time[0] = 0  # assign 0 to center node
+    for line in fh.readlines():
+        (head, tail, rtt) = line.split()
+        G.add_edge(int(head), int(tail))
+        time[int(head)] = float(rtt)
+
+    # get largest component and assign ping times to G0time dictionary
+    Gcc = sorted(nx.connected_components(G), key=len, reverse=True)[0]
+    G0 = G.subgraph(Gcc)
+    G0.rtt = {}
+    for n in G0:
+        G0.rtt[n] = time[n]
+
+    return G0
+
+
+G = lanl_graph()
+
+print(f"graph has {nx.number_of_nodes(G)} nodes with {nx.number_of_edges(G)} edges")
+print(nx.number_connected_components(G), "connected components")
+
+plt.figure(figsize=(8, 8))
+# use graphviz to find radial layout
+pos = graphviz_layout(G, prog="twopi", root=0)
+# draw nodes, coloring by rtt ping time
+options = {"with_labels": False, "alpha": 0.5, "node_size": 15}
+nx.draw(G, pos, node_color=[G.rtt[v] for v in G], **options)
+# adjust the plot limits
+xmax = 1.02 * max(xx for xx, yy in pos.values())
+ymax = 1.02 * max(yy for xx, yy in pos.values())
+plt.xlim(0, xmax)
+plt.ylim(0, ymax)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_multipartite_graph.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_multipartite_graph.py
new file mode 100644
index 0000000..4b3c4ce
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_multipartite_graph.py
@@ -0,0 +1,43 @@
+"""
+===================
+Multipartite Layout
+===================
+"""
+
+import itertools
+import matplotlib.pyplot as plt
+import networkx as nx
+
+from networkx.utils import pairwise
+
+subset_sizes = [5, 5, 4, 3, 2, 4, 4, 3]
+subset_color = [
+    "gold",
+    "violet",
+    "violet",
+    "violet",
+    "violet",
+    "limegreen",
+    "limegreen",
+    "darkorange",
+]
+
+
+def multilayered_graph(*subset_sizes):
+    extents = pairwise(itertools.accumulate((0,) + subset_sizes))
+    layers = [range(start, end) for start, end in extents]
+    G = nx.Graph()
+    for (i, layer) in enumerate(layers):
+        G.add_nodes_from(layer, layer=i)
+    for layer1, layer2 in pairwise(layers):
+        G.add_edges_from(itertools.product(layer1, layer2))
+    return G
+
+
+G = multilayered_graph(*subset_sizes)
+color = [subset_color[data["layer"]] for v, data in G.nodes(data=True)]
+pos = nx.multipartite_layout(G, subset_key="layer")
+plt.figure(figsize=(8, 8))
+nx.draw(G, pos, node_color=color, with_labels=False)
+plt.axis("equal")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_node_colormap.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_node_colormap.py
new file mode 100644
index 0000000..d72d80b
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_node_colormap.py
@@ -0,0 +1,15 @@
+"""
+=============
+Node Colormap
+=============
+
+Draw a graph with matplotlib, color by degree.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.cycle_graph(24)
+pos = nx.spring_layout(G, iterations=200)
+nx.draw(G, pos, node_color=range(24), node_size=800, cmap=plt.cm.Blues)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_random_geometric_graph.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_random_geometric_graph.py
new file mode 100644
index 0000000..a3cd78c
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_random_geometric_graph.py
@@ -0,0 +1,43 @@
+"""
+======================
+Random Geometric Graph
+======================
+
+Example
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.random_geometric_graph(200, 0.125)
+# position is stored as node attribute data for random_geometric_graph
+pos = nx.get_node_attributes(G, "pos")
+
+# find node near center (0.5,0.5)
+dmin = 1
+ncenter = 0
+for n in pos:
+    x, y = pos[n]
+    d = (x - 0.5) ** 2 + (y - 0.5) ** 2
+    if d < dmin:
+        ncenter = n
+        dmin = d
+
+# color by path length from node near center
+p = dict(nx.single_source_shortest_path_length(G, ncenter))
+
+plt.figure(figsize=(8, 8))
+nx.draw_networkx_edges(G, pos, nodelist=[ncenter], alpha=0.4)
+nx.draw_networkx_nodes(
+    G,
+    pos,
+    nodelist=list(p.keys()),
+    node_size=80,
+    node_color=list(p.values()),
+    cmap=plt.cm.Reds_r,
+)
+
+plt.xlim(-0.05, 1.05)
+plt.ylim(-0.05, 1.05)
+plt.axis("off")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_sampson.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_sampson.py
new file mode 100644
index 0000000..9111546
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_sampson.py
@@ -0,0 +1,46 @@
+"""
+=======
+Sampson
+=======
+
+Sampson's monastery data.
+
+Shows how to read data from a zip file and plot multiple frames.
+
+The data file can be found at:
+
+- https://github.com/networkx/networkx/blob/master/examples/drawing/sampson_data.zip
+"""
+
+import zipfile
+from io import BytesIO as StringIO
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+with zipfile.ZipFile("sampson_data.zip") as zf:
+    e1 = StringIO(zf.read("samplike1.txt"))
+    e2 = StringIO(zf.read("samplike2.txt"))
+    e3 = StringIO(zf.read("samplike3.txt"))
+
+G1 = nx.read_edgelist(e1, delimiter="\t")
+G2 = nx.read_edgelist(e2, delimiter="\t")
+G3 = nx.read_edgelist(e3, delimiter="\t")
+pos = nx.spring_layout(G3, iterations=100)
+plt.clf()
+
+plt.subplot(221)
+plt.title("samplike1")
+nx.draw(G1, pos, node_size=50, with_labels=False)
+plt.subplot(222)
+plt.title("samplike2")
+nx.draw(G2, pos, node_size=50, with_labels=False)
+plt.subplot(223)
+plt.title("samplike3")
+nx.draw(G3, pos, node_size=50, with_labels=False)
+plt.subplot(224)
+plt.title("samplike1,2,3")
+nx.draw(G3, pos, edgelist=list(G3.edges()), node_size=50, with_labels=False)
+nx.draw_networkx_edges(G1, pos, alpha=0.25)
+nx.draw_networkx_edges(G2, pos, alpha=0.25)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_simple_path.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_simple_path.py
new file mode 100644
index 0000000..0c8b930
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_simple_path.py
@@ -0,0 +1,13 @@
+"""
+===========
+Simple Path
+===========
+
+Draw a graph with matplotlib.
+"""
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.path_graph(8)
+nx.draw(G)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_spectral_grid.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_spectral_grid.py
new file mode 100644
index 0000000..80ef6f1
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_spectral_grid.py
@@ -0,0 +1,58 @@
+"""
+==================
+Spectral Embedding
+==================
+
+The spectral layout positions the nodes of the graph based on the
+eigenvectors of the graph Laplacian $L = D - A$, where $A$ is the
+adjacency matrix and $D$ is the degree matrix of the graph.
+By default, the spectral layout will embed the graph in two
+dimensions (you can embed your graph in other dimensions using the
+``dim`` argument to either :func:`~drawing.nx_pylab.draw_spectral` or
+:func:`~drawing.layout.spectral_layout`).
+
+When the edges of the graph represent similarity between the incident
+nodes, the spectral embedding will place highly similar nodes closer
+to one another than nodes which are less similar.
+
+This is particularly striking when you spectrally embed a grid
+graph.  In the full grid graph, the nodes in the center of the
+graph are pulled apart more than nodes on the periphery.
+As you remove internal nodes, this effect increases.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+
+options = {"node_color": "C0", "node_size": 100}
+
+G = nx.grid_2d_graph(6, 6)
+plt.subplot(332)
+nx.draw_spectral(G, **options)
+
+G.remove_edge((2, 2), (2, 3))
+plt.subplot(334)
+nx.draw_spectral(G, **options)
+
+G.remove_edge((3, 2), (3, 3))
+plt.subplot(335)
+nx.draw_spectral(G, **options)
+
+G.remove_edge((2, 2), (3, 2))
+plt.subplot(336)
+nx.draw_spectral(G, **options)
+
+G.remove_edge((2, 3), (3, 3))
+plt.subplot(337)
+nx.draw_spectral(G, **options)
+
+G.remove_edge((1, 2), (1, 3))
+plt.subplot(338)
+nx.draw_spectral(G, **options)
+
+G.remove_edge((4, 2), (4, 3))
+plt.subplot(339)
+nx.draw_spectral(G, **options)
+
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_unix_email.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_unix_email.py
new file mode 100644
index 0000000..3d8e3de
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_unix_email.py
@@ -0,0 +1,60 @@
+"""
+==========
+Unix Email
+==========
+
+Create a directed graph, allowing multiple edges and self loops, from a unix
+mailbox.  The nodes are email addresses with links that point from the sender
+to the receivers.  The edge data is a Python email.Message object which
+contains all of the email message data.
+
+This example shows the power of `DiGraph` to hold edge data of arbitrary Python
+objects (in this case a list of email messages).
+
+
+The sample unix email mailbox called "unix_email.mbox" may be found here:
+
+- https://github.com/networkx/networkx/blob/master/examples/drawing/unix_email.mbox
+"""
+
+from email.utils import getaddresses, parseaddr
+import mailbox
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+# unix mailbox recipe
+# see https://docs.python.org/3/library/mailbox.html
+
+
+def mbox_graph():
+    mbox = mailbox.mbox("unix_email.mbox")  # parse unix mailbox
+
+    G = nx.MultiDiGraph()  # create empty graph
+
+    # parse each messages and build graph
+    for msg in mbox:  # msg is python email.Message.Message object
+        (source_name, source_addr) = parseaddr(msg["From"])  # sender
+        # get all recipients
+        # see https://docs.python.org/3/library/email.html
+        tos = msg.get_all("to", [])
+        ccs = msg.get_all("cc", [])
+        resent_tos = msg.get_all("resent-to", [])
+        resent_ccs = msg.get_all("resent-cc", [])
+        all_recipients = getaddresses(tos + ccs + resent_tos + resent_ccs)
+        # now add the edges for this mail message
+        for (target_name, target_addr) in all_recipients:
+            G.add_edge(source_addr, target_addr, message=msg)
+
+    return G
+
+
+G = mbox_graph()
+
+# print edges with message subject
+for (u, v, d) in G.edges(data=True):
+    print(f"From: {u} To: {v} Subject: {d['message']['Subject']}")
+
+pos = nx.spring_layout(G, iterations=10)
+nx.draw(G, pos, node_size=0, alpha=0.4, edge_color="r", font_size=16, with_labels=True)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/plot_weighted_graph.py b/c_env/share/doc/networkx-2.5/examples/drawing/plot_weighted_graph.py
new file mode 100644
index 0000000..35200bb
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/plot_weighted_graph.py
@@ -0,0 +1,38 @@
+"""
+==============
+Weighted Graph
+==============
+
+An example using Graph as a weighted network.
+"""
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.Graph()
+
+G.add_edge("a", "b", weight=0.6)
+G.add_edge("a", "c", weight=0.2)
+G.add_edge("c", "d", weight=0.1)
+G.add_edge("c", "e", weight=0.7)
+G.add_edge("c", "f", weight=0.9)
+G.add_edge("a", "d", weight=0.3)
+
+elarge = [(u, v) for (u, v, d) in G.edges(data=True) if d["weight"] > 0.5]
+esmall = [(u, v) for (u, v, d) in G.edges(data=True) if d["weight"] <= 0.5]
+
+pos = nx.spring_layout(G)  # positions for all nodes
+
+# nodes
+nx.draw_networkx_nodes(G, pos, node_size=700)
+
+# edges
+nx.draw_networkx_edges(G, pos, edgelist=elarge, width=6)
+nx.draw_networkx_edges(
+    G, pos, edgelist=esmall, width=6, alpha=0.5, edge_color="b", style="dashed"
+)
+
+# labels
+nx.draw_networkx_labels(G, pos, font_size=20, font_family="sans-serif")
+
+plt.axis("off")
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/drawing/unix_email.mbox b/c_env/share/doc/networkx-2.5/examples/drawing/unix_email.mbox
new file mode 100644
index 0000000..a3a7cf8
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/drawing/unix_email.mbox
@@ -0,0 +1,84 @@
+From alice@edu  Thu Jun 16 16:12:12 2005
+From: Alice <alice@edu>
+Subject: NetworkX
+Date: Thu, 16 Jun 2005 16:12:13 -0700
+To: Bob <bob@gov>
+Status: RO
+Content-Length: 86
+Lines: 5
+
+Bob, check out the new networkx release - you and
+Carol might really like it.
+
+Alice
+
+
+From bob@gov   Thu Jun 16 18:13:12 2005
+Return-Path: <bob@gov>
+Subject: Re: NetworkX
+From: Bob <bob@gov>
+To: Alice <alice@edu>
+Content-Type: text/plain
+Date: Thu, 16 Jun 2005 18:13:12 -0700
+Status: RO
+Content-Length: 26
+Lines: 4
+
+Thanks for the tip.
+
+Bob
+
+
+From ted@com  Thu Jul 28 09:53:31 2005
+Return-Path: <ted@com>
+Subject: Graph package in Python?
+From: Ted <ted@com>
+To: Bob <bob@gov>
+Content-Type: text/plain
+Date: Thu, 28 Jul 2005 09:47:03 -0700
+Status: RO
+Content-Length: 90
+Lines: 3
+
+Hey Ted - I'm looking for a Python package for
+graphs and networks.  Do you know of any?
+
+
+From bob@gov  Thu Jul 28 09:59:31 2005
+Return-Path: <bob@gov>
+Subject: Re: Graph package in Python?
+From: Bob <bob@gov>
+To: Ted <ted@com>
+Content-Type: text/plain
+Date: Thu, 28 Jul 2005 09:59:03 -0700
+Status: RO
+Content-Length: 180
+Lines: 9
+
+
+Check out the NetworkX package - Alice sent me the tip!
+
+Bob
+
+>> bob@gov scrawled:
+>> Hey Ted - I'm looking for a Python package for
+>> graphs and networks.  Do you know of any?
+
+
+From ted@com  Thu Jul 28 15:53:31 2005
+Return-Path: <ted@com>
+Subject: get together for lunch to discuss Networks?
+From: Ted <ted@com>
+To: Bob <bob@gov>, Carol <carol@gov>, Alice <alice@edu>
+Content-Type: text/plain
+Date: Thu, 28 Jul 2005 15:47:03 -0700
+Status: RO
+Content-Length: 139
+Lines: 5
+
+Hey everyrone!  Want to meet at that restaurant on the
+island in Konigsburg tonight?  Bring your laptops
+and we can install NetworkX.
+
+Ted
+
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/README.txt b/c_env/share/doc/networkx-2.5/examples/graph/README.txt
new file mode 100644
index 0000000..9b0e3b2
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/README.txt
@@ -0,0 +1,2 @@
+Graph
+-----
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/dot_atlas.py b/c_env/share/doc/networkx-2.5/examples/graph/dot_atlas.py
new file mode 100644
index 0000000..257336f
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/dot_atlas.py
@@ -0,0 +1,25 @@
+"""
+======
+Atlas2
+======
+
+Write first 20 graphs from the graph atlas as graphviz dot files
+Gn.dot where n=0,19.
+"""
+
+import networkx as nx
+from networkx.generators.atlas import graph_atlas_g
+
+atlas = graph_atlas_g()[0:20]
+
+for G in atlas:
+    print(
+        f"{G.name} has {nx.number_of_nodes(G)} nodes with {nx.number_of_edges(G)} edges"
+    )
+    A = nx.nx_agraph.to_agraph(G)
+    A.graph_attr["label"] = G.name
+    # set default node attributes
+    A.node_attr["color"] = "red"
+    A.node_attr["style"] = "filled"
+    A.node_attr["shape"] = "circle"
+    A.write(G.name + ".dot")
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_degree_sequence.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_degree_sequence.py
new file mode 100644
index 0000000..103be57
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_degree_sequence.py
@@ -0,0 +1,30 @@
+"""
+===============
+Degree Sequence
+===============
+
+Random graph from given degree sequence.
+"""
+import matplotlib.pyplot as plt
+from networkx import nx
+
+z = [5, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1]
+print(nx.is_graphical(z))
+
+print("Configuration model")
+G = nx.configuration_model(z)  # configuration model
+degree_sequence = [d for n, d in G.degree()]  # degree sequence
+print(f"Degree sequence {degree_sequence}")
+print("Degree histogram")
+hist = {}
+for d in degree_sequence:
+    if d in hist:
+        hist[d] += 1
+    else:
+        hist[d] = 1
+print("degree #nodes")
+for d in hist:
+    print(f"{d:4} {hist[d]:6}")
+
+nx.draw(G)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_erdos_renyi.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_erdos_renyi.py
new file mode 100644
index 0000000..c04765e
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_erdos_renyi.py
@@ -0,0 +1,33 @@
+"""
+===========
+Erdos Renyi
+===========
+
+Create an G{n,m} random graph with n nodes and m edges
+and report some properties.
+
+This graph is sometimes called the Erdős-Rényi graph
+but is different from G{n,p} or binomial_graph which is also
+sometimes called the Erdős-Rényi graph.
+"""
+
+import matplotlib.pyplot as plt
+from networkx import nx
+
+n = 10  # 10 nodes
+m = 20  # 20 edges
+
+G = nx.gnm_random_graph(n, m)
+
+# some properties
+print("node degree clustering")
+for v in nx.nodes(G):
+    print(f"{v} {nx.degree(G, v)} {nx.clustering(G, v)}")
+
+print()
+print("the adjacency list")
+for line in nx.generate_adjlist(G):
+    print(line)
+
+nx.draw(G)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_expected_degree_sequence.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_expected_degree_sequence.py
new file mode 100644
index 0000000..203789f
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_expected_degree_sequence.py
@@ -0,0 +1,21 @@
+"""
+========================
+Expected Degree Sequence
+========================
+
+Random graph from given degree sequence.
+"""
+
+import networkx as nx
+from networkx.generators.degree_seq import expected_degree_graph
+
+# make a random graph of 500 nodes with expected degrees of 50
+n = 500  # n nodes
+p = 0.1
+w = [p * n for i in range(n)]  # w = p*n for all nodes
+G = expected_degree_graph(w)  # configuration model
+print("Degree histogram")
+print("degree (#nodes) ****")
+dh = nx.degree_histogram(G)
+for i, d in enumerate(dh):
+    print(f"{i:2} ({d:2}) {'*'*d}")
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_football.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_football.py
new file mode 100644
index 0000000..1d215b1
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_football.py
@@ -0,0 +1,47 @@
+"""
+========
+Football
+========
+
+Load football network in GML format and compute some network statistcs.
+
+Shows how to download GML graph in a zipped file, unpack it, and load
+into a NetworkX graph.
+
+Requires Internet connection to download the URL
+http://www-personal.umich.edu/~mejn/netdata/football.zip
+"""
+
+import urllib.request as urllib
+import io
+import zipfile
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+url = "http://www-personal.umich.edu/~mejn/netdata/football.zip"
+
+sock = urllib.urlopen(url)  # open URL
+s = io.BytesIO(sock.read())  # read into BytesIO "file"
+sock.close()
+
+zf = zipfile.ZipFile(s)  # zipfile object
+txt = zf.read("football.txt").decode()  # read info file
+gml = zf.read("football.gml").decode()  # read gml data
+# throw away bogus first line with # from mejn files
+gml = gml.split("\n")[1:]
+G = nx.parse_gml(gml)  # parse gml data
+
+print(txt)
+# print degree for each team - number of games
+for n, d in G.degree():
+    print(f"{n:20} {d:2}")
+
+options = {
+    "node_color": "black",
+    "node_size": 50,
+    "linewidths": 0,
+    "width": 0.1,
+}
+nx.draw(G, **options)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_karate_club.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_karate_club.py
new file mode 100644
index 0000000..c4fe5bc
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_karate_club.py
@@ -0,0 +1,25 @@
+"""
+===========
+Karate Club
+===========
+
+Zachary's Karate Club graph
+
+Data file from:
+http://vlado.fmf.uni-lj.si/pub/networks/data/Ucinet/UciData.htm
+
+Zachary W. (1977).
+An information flow model for conflict and fission in small groups.
+Journal of Anthropological Research, 33, 452-473.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+G = nx.karate_club_graph()
+print("Node Degree")
+for v in G:
+    print(f"{v:4} {G.degree(v):6}")
+
+nx.draw_circular(G, with_labels=True)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_napoleon_russian_campaign.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_napoleon_russian_campaign.py
new file mode 100644
index 0000000..0ec8a1c
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_napoleon_russian_campaign.py
@@ -0,0 +1,134 @@
+"""
+=========================
+Napoleon Russian Campaign
+=========================
+
+Minard's data from Napoleon's 1812-1813  Russian Campaign.
+http://www.math.yorku.ca/SCS/Gallery/minard/minard.txt
+
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+
+
+def minard_graph():
+    data1 = """\
+24.0,54.9,340000,A,1
+24.5,55.0,340000,A,1
+25.5,54.5,340000,A,1
+26.0,54.7,320000,A,1
+27.0,54.8,300000,A,1
+28.0,54.9,280000,A,1
+28.5,55.0,240000,A,1
+29.0,55.1,210000,A,1
+30.0,55.2,180000,A,1
+30.3,55.3,175000,A,1
+32.0,54.8,145000,A,1
+33.2,54.9,140000,A,1
+34.4,55.5,127100,A,1
+35.5,55.4,100000,A,1
+36.0,55.5,100000,A,1
+37.6,55.8,100000,A,1
+37.7,55.7,100000,R,1
+37.5,55.7,98000,R,1
+37.0,55.0,97000,R,1
+36.8,55.0,96000,R,1
+35.4,55.3,87000,R,1
+34.3,55.2,55000,R,1
+33.3,54.8,37000,R,1
+32.0,54.6,24000,R,1
+30.4,54.4,20000,R,1
+29.2,54.3,20000,R,1
+28.5,54.2,20000,R,1
+28.3,54.3,20000,R,1
+27.5,54.5,20000,R,1
+26.8,54.3,12000,R,1
+26.4,54.4,14000,R,1
+25.0,54.4,8000,R,1
+24.4,54.4,4000,R,1
+24.2,54.4,4000,R,1
+24.1,54.4,4000,R,1"""
+    data2 = """\
+24.0,55.1,60000,A,2
+24.5,55.2,60000,A,2
+25.5,54.7,60000,A,2
+26.6,55.7,40000,A,2
+27.4,55.6,33000,A,2
+28.7,55.5,33000,R,2
+29.2,54.2,30000,R,2
+28.5,54.1,30000,R,2
+28.3,54.2,28000,R,2"""
+    data3 = """\
+24.0,55.2,22000,A,3
+24.5,55.3,22000,A,3
+24.6,55.8,6000,A,3
+24.6,55.8,6000,R,3
+24.2,54.4,6000,R,3
+24.1,54.4,6000,R,3"""
+    cities = """\
+24.0,55.0,Kowno
+25.3,54.7,Wilna
+26.4,54.4,Smorgoni
+26.8,54.3,Moiodexno
+27.7,55.2,Gloubokoe
+27.6,53.9,Minsk
+28.5,54.3,Studienska
+28.7,55.5,Polotzk
+29.2,54.4,Bobr
+30.2,55.3,Witebsk
+30.4,54.5,Orscha
+30.4,53.9,Mohilow
+32.0,54.8,Smolensk
+33.2,54.9,Dorogobouge
+34.3,55.2,Wixma
+34.4,55.5,Chjat
+36.0,55.5,Mojaisk
+37.6,55.8,Moscou
+36.6,55.3,Tarantino
+36.5,55.0,Malo-Jarosewii"""
+
+    c = {}
+    for line in cities.split("\n"):
+        x, y, name = line.split(",")
+        c[name] = (float(x), float(y))
+
+    g = []
+
+    for data in [data1, data2, data3]:
+        G = nx.Graph()
+        i = 0
+        G.pos = {}  # location
+        G.pop = {}  # size
+        last = None
+        for line in data.split("\n"):
+            x, y, p, r, n = line.split(",")
+            G.pos[i] = (float(x), float(y))
+            G.pop[i] = int(p)
+            if last is None:
+                last = i
+            else:
+                G.add_edge(i, last, **{r: int(n)})
+                last = i
+            i = i + 1
+        g.append(G)
+
+    return g, c
+
+
+(g, city) = minard_graph()
+
+plt.figure(1, figsize=(11, 5))
+plt.clf()
+colors = ["b", "g", "r"]
+for G in g:
+    c = colors.pop(0)
+    node_size = [int(G.pop[n] / 300.0) for n in G]
+    nx.draw_networkx_edges(G, G.pos, edge_color=c, width=4, alpha=0.5)
+    nx.draw_networkx_nodes(G, G.pos, node_size=node_size, node_color=c, alpha=0.5)
+    nx.draw_networkx_nodes(G, G.pos, node_size=5, node_color="k")
+
+for c in city:
+    x, y = city[c]
+    plt.text(x, y + 0.1, c)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_roget.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_roget.py
new file mode 100644
index 0000000..41e4347
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_roget.py
@@ -0,0 +1,80 @@
+"""
+=====
+Roget
+=====
+
+Build a directed graph of 1022 categories and 5075 cross-references as defined
+in the 1879 version of Roget's Thesaurus. This example is described in Section
+1.2 of
+
+    Donald E. Knuth, "The Stanford GraphBase: A Platform for Combinatorial
+    Computing", ACM Press, New York, 1993.
+    http://www-cs-faculty.stanford.edu/~knuth/sgb.html
+
+Note that one of the 5075 cross references is a self loop yet it is included in
+the graph built here because the standard networkx `DiGraph` class allows self
+loops.  (cf. 400pungency:400 401 403 405).
+
+The data file can be found at:
+
+- https://github.com/networkx/networkx/blob/master/examples/graph/roget_dat.txt.gz
+"""
+
+import gzip
+import re
+import sys
+
+import matplotlib.pyplot as plt
+from networkx import nx
+
+
+def roget_graph():
+    """ Return the thesaurus graph from the roget.dat example in
+    the Stanford Graph Base.
+    """
+    # open file roget_dat.txt.gz
+    fh = gzip.open("roget_dat.txt.gz", "r")
+
+    G = nx.DiGraph()
+
+    for line in fh.readlines():
+        line = line.decode()
+        if line.startswith("*"):  # skip comments
+            continue
+        if line.startswith(" "):  # this is a continuation line, append
+            line = oldline + line
+        if line.endswith("\\\n"):  # continuation line, buffer, goto next
+            oldline = line.strip("\\\n")
+            continue
+
+        (headname, tails) = line.split(":")
+
+        # head
+        numfind = re.compile(r"^\d+")  # re to find the number of this word
+        head = numfind.findall(headname)[0]  # get the number
+
+        G.add_node(head)
+
+        for tail in tails.split():
+            if head == tail:
+                print("skipping self loop", head, tail, file=sys.stderr)
+            G.add_edge(head, tail)
+
+    return G
+
+
+G = roget_graph()
+print("Loaded roget_dat.txt containing 1022 categories.")
+print(f"digraph has {nx.number_of_nodes(G)} nodes with {nx.number_of_edges(G)} edges")
+UG = G.to_undirected()
+print(nx.number_connected_components(UG), "connected components")
+
+options = {
+    "node_color": "black",
+    "node_size": 1,
+    "edge_color": "gray",
+    "linewidths": 0,
+    "width": 0.1,
+}
+nx.draw_circular(UG, **options)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/plot_words.py b/c_env/share/doc/networkx-2.5/examples/graph/plot_words.py
new file mode 100644
index 0000000..ccaaebb
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/graph/plot_words.py
@@ -0,0 +1,74 @@
+"""
+==================
+Words/Ladder Graph
+==================
+
+Generate  an undirected graph over the 5757 5-letter words in the datafile
+`words_dat.txt.gz`.  Two words are connected by an edge if they differ in one
+letter, resulting in 14,135 edges. This example is described in Section 1.1 of
+
+    Donald E. Knuth, "The Stanford GraphBase: A Platform for Combinatorial
+    Computing", ACM Press, New York, 1993.
+    http://www-cs-faculty.stanford.edu/~knuth/sgb.html
+
+The data file can be found at:
+
+- https://github.com/networkx/networkx/blob/master/examples/graph/words_dat.txt.gz
+"""
+
+import gzip
+from string import ascii_lowercase as lowercase
+
+import networkx as nx
+
+
+def generate_graph(words):
+    G = nx.Graph(name="words")
+    lookup = {c: lowercase.index(c) for c in lowercase}
+
+    def edit_distance_one(word):
+        for i in range(len(word)):
+            left, c, right = word[0:i], word[i], word[i + 1 :]
+            j = lookup[c]  # lowercase.index(c)
+            for cc in lowercase[j + 1 :]:
+                yield left + cc + right
+
+    candgen = (
+        (word, cand)
+        for word in sorted(words)
+        for cand in edit_distance_one(word)
+        if cand in words
+    )
+    G.add_nodes_from(words)
+    for word, cand in candgen:
+        G.add_edge(word, cand)
+    return G
+
+
+def words_graph():
+    """Return the words example graph from the Stanford GraphBase"""
+    fh = gzip.open("words_dat.txt.gz", "r")
+    words = set()
+    for line in fh.readlines():
+        line = line.decode()
+        if line.startswith("*"):
+            continue
+        w = str(line[0:5])
+        words.add(w)
+    return generate_graph(words)
+
+
+G = words_graph()
+print("Loaded words_dat.txt containing 5757 five-letter English words.")
+print("Two words are connected if they differ in one letter.")
+print(f"Graph has {nx.number_of_nodes(G)} nodes with {nx.number_of_edges(G)} edges")
+print(f"{nx.number_connected_components(G)} connected components")
+
+for (source, target) in [("chaos", "order"), ("nodes", "graph"), ("pound", "marks")]:
+    print(f"Shortest path between {source} and {target} is")
+    try:
+        sp = nx.shortest_path(G, source, target)
+        for n in sp:
+            print(n)
+    except nx.NetworkXNoPath:
+        print("None")
diff --git a/c_env/share/doc/networkx-2.5/examples/graph/roget_dat.txt.gz b/c_env/share/doc/networkx-2.5/examples/graph/roget_dat.txt.gz
new file mode 100644
index 0000000..6552465
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diff --git a/c_env/share/doc/networkx-2.5/examples/graph/words_dat.txt.gz b/c_env/share/doc/networkx-2.5/examples/graph/words_dat.txt.gz
new file mode 100644
index 0000000..78aff79
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diff --git a/c_env/share/doc/networkx-2.5/examples/javascript/README.txt b/c_env/share/doc/networkx-2.5/examples/javascript/README.txt
new file mode 100644
index 0000000..bcf45a3
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/javascript/README.txt
@@ -0,0 +1,2 @@
+Javascript
+----------
diff --git a/c_env/share/doc/networkx-2.5/examples/javascript/force.py b/c_env/share/doc/networkx-2.5/examples/javascript/force.py
new file mode 100644
index 0000000..db2f367
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/javascript/force.py
@@ -0,0 +1,40 @@
+"""
+==========
+Javascript
+==========
+
+Example of writing JSON format graph data and using the D3 Javascript library
+to produce an HTML/Javascript drawing.
+
+You will need to download the following directory:
+
+- https://github.com/networkx/networkx/tree/master/examples/javascript/force
+"""
+import json
+
+import flask
+import networkx as nx
+from networkx.readwrite import json_graph
+
+G = nx.barbell_graph(6, 3)
+# this d3 example uses the name attribute for the mouse-hover value,
+# so add a name to each node
+for n in G:
+    G.nodes[n]["name"] = n
+# write json formatted data
+d = json_graph.node_link_data(G)  # node-link format to serialize
+# write json
+json.dump(d, open("force/force.json", "w"))
+print("Wrote node-link JSON data to force/force.json")
+
+# Serve the file over http to allow for cross origin requests
+app = flask.Flask(__name__, static_folder="force")
+
+
+@app.route("/")
+def static_proxy():
+    return app.send_static_file("force.html")
+
+
+print("\nGo to http://localhost:8000 to see the example\n")
+app.run(port=8000)
diff --git a/c_env/share/doc/networkx-2.5/examples/javascript/force/README.txt b/c_env/share/doc/networkx-2.5/examples/javascript/force/README.txt
new file mode 100644
index 0000000..8de9a02
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/javascript/force/README.txt
@@ -0,0 +1,7 @@
+Modified from the example at of D3
+http://mbostock.github.com/d3/ex/force.html
+
+Run the file force.py to generate the force.json data file needed for this to work.
+
+Then copy all of the files in this directory to a webserver and load force.html.
+
diff --git a/c_env/share/doc/networkx-2.5/examples/javascript/force/force.css b/c_env/share/doc/networkx-2.5/examples/javascript/force/force.css
new file mode 100644
index 0000000..fee3f31
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/javascript/force/force.css
@@ -0,0 +1,12 @@
+.nodes circle {
+    cursor: pointer;
+    fill: #ff3399;
+    stroke: #000;
+    stroke-width: .5px;
+}
+
+.links line {
+    fill: none;
+    stroke: #9ecae1;
+    stroke-width: .5px;
+}
\ No newline at end of file
diff --git a/c_env/share/doc/networkx-2.5/examples/javascript/force/force.html b/c_env/share/doc/networkx-2.5/examples/javascript/force/force.html
new file mode 100644
index 0000000..21cc7e3
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/javascript/force/force.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Force-Directed Layout</title>
+    <script type="text/javascript" src="https://d3js.org/d3.v4.min.js"></script>
+    <link type="text/css" rel="stylesheet" href="force/force.css"/>
+  </head>
+  <body>
+    <svg width="960" height="600"></svg>
+    <script type="text/javascript" src="force/force.js"></script>
+  </body>
+</html>
diff --git a/c_env/share/doc/networkx-2.5/examples/javascript/force/force.js b/c_env/share/doc/networkx-2.5/examples/javascript/force/force.js
new file mode 100644
index 0000000..5aba4fc
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/javascript/force/force.js
@@ -0,0 +1,86 @@
+// This is adapted from https://bl.ocks.org/mbostock/2675ff61ea5e063ede2b5d63c08020c7
+
+var svg = d3.select("svg"),
+    width = +svg.attr("width"),
+    height = +svg.attr("height");
+
+var simulation = d3.forceSimulation()
+    .force("link", d3.forceLink().id(function (d) {
+        return d.id;
+    }))
+    .force("charge", d3.forceManyBody())
+    .force("center", d3.forceCenter(width / 2, height / 2));
+
+d3.json("force/force.json", function (error, graph) {
+    if (error) throw error;
+
+    var link = svg.append("g")
+        .attr("class", "links")
+        .selectAll("line")
+        .data(graph.links)
+        .enter().append("line");
+
+    var node = svg.append("g")
+        .attr("class", "nodes")
+        .selectAll("circle")
+        .data(graph.nodes)
+        .enter().append("circle")
+        .attr("r", 5)
+        .call(d3.drag()
+            .on("start", dragstarted)
+            .on("drag", dragged)
+            .on("end", dragended));
+
+    node.append("title")
+        .text(function (d) {
+            return d.id;
+        });
+
+    simulation
+        .nodes(graph.nodes)
+        .on("tick", ticked);
+
+    simulation.force("link")
+        .links(graph.links);
+
+    function ticked() {
+        link
+            .attr("x1", function (d) {
+                return d.source.x;
+            })
+            .attr("y1", function (d) {
+                return d.source.y;
+            })
+            .attr("x2", function (d) {
+                return d.target.x;
+            })
+            .attr("y2", function (d) {
+                return d.target.y;
+            });
+
+        node
+            .attr("cx", function (d) {
+                return d.x;
+            })
+            .attr("cy", function (d) {
+                return d.y;
+            });
+    }
+});
+
+function dragstarted(d) {
+    if (!d3.event.active) simulation.alphaTarget(0.3).restart();
+    d.fx = d.x;
+    d.fy = d.y;
+}
+
+function dragged(d) {
+    d.fx = d3.event.x;
+    d.fy = d3.event.y;
+}
+
+function dragended(d) {
+    if (!d3.event.active) simulation.alphaTarget(0);
+    d.fx = null;
+    d.fy = null;
+}
\ No newline at end of file
diff --git a/c_env/share/doc/networkx-2.5/examples/jit/README.txt b/c_env/share/doc/networkx-2.5/examples/jit/README.txt
new file mode 100644
index 0000000..d9c41bf
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/jit/README.txt
@@ -0,0 +1,2 @@
+JIT
+---
diff --git a/c_env/share/doc/networkx-2.5/examples/jit/plot_rgraph.py b/c_env/share/doc/networkx-2.5/examples/jit/plot_rgraph.py
new file mode 100644
index 0000000..764c061
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/jit/plot_rgraph.py
@@ -0,0 +1,39 @@
+"""
+======
+Rgraph
+======
+
+An example showing how to use the JavaScript InfoVis Toolkit (JIT)
+JSON export
+
+See the JIT documentation and examples at http://thejit.org
+
+"""
+
+import json
+
+import matplotlib.pyplot as plt
+import networkx as nx
+from networkx.readwrite.json_graph import jit_data, jit_graph
+
+# add some nodes to a graph
+G = nx.Graph()
+
+G.add_node("one", type="normal")
+G.add_node("two", type="special")
+G.add_node("solo")
+
+# add edges
+G.add_edge("one", "two")
+G.add_edge("two", 3, type="extra special")
+
+# convert to JIT JSON
+jit_json = jit_data(G, indent=4)
+print(jit_json)
+
+X = jit_graph(json.loads(jit_json))
+print(f"Nodes: {list(X.nodes(data=True))}")
+print(f"Edges: {list(X.edges(data=True))}")
+
+nx.draw(G, with_labels=True)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/pygraphviz/README.txt b/c_env/share/doc/networkx-2.5/examples/pygraphviz/README.txt
new file mode 100644
index 0000000..b493e07
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/pygraphviz/README.txt
@@ -0,0 +1,2 @@
+Pygraphviz
+----------
diff --git a/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_attributes.py b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_attributes.py
new file mode 100644
index 0000000..33dbecd
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_attributes.py
@@ -0,0 +1,38 @@
+"""
+=====================
+Pygraphviz Attributes
+=====================
+
+An example showing how to use the interface to the pygraphviz
+AGraph class to convert to and from graphviz.
+
+Also see the pygraphviz documentation and examples at
+http://pygraphviz.github.io/
+"""
+
+import networkx as nx
+
+# networkx graph
+G = nx.Graph()
+# ad edges with red color
+G.add_edge(1, 2, color="red")
+G.add_edge(2, 3, color="red")
+# add nodes 3 and 4
+G.add_node(3)
+G.add_node(4)
+
+# convert to a graphviz agraph
+A = nx.nx_agraph.to_agraph(G)
+
+# write to dot file
+A.write("k5_attributes.dot")
+
+# convert back to networkx Graph with attributes on edges and
+# default attributes as dictionary data
+X = nx.nx_agraph.from_agraph(A)
+print("edges")
+print(list(X.edges(data=True)))
+print("default graph attributes")
+print(X.graph)
+print("node node attributes")
+print(X.nodes.data(True))
diff --git a/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_draw.py b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_draw.py
new file mode 100644
index 0000000..bf64e76
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_draw.py
@@ -0,0 +1,19 @@
+"""
+===============
+Pygraphviz Draw
+===============
+
+An example showing how to use the interface to the pygraphviz
+AGraph class to draw a graph.
+
+Also see the pygraphviz documentation and examples at
+http://pygraphviz.github.io/
+"""
+
+import networkx as nx
+
+# plain graph
+G = nx.complete_graph(5)  # start with K5 in networkx
+A = nx.nx_agraph.to_agraph(G)  # convert to a graphviz graph
+A.layout()  # neato layout
+A.draw("k5.ps")  # write postscript in k5.ps with neato layout
diff --git a/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_simple.py b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_simple.py
new file mode 100644
index 0000000..3b226be
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_pygraphviz_simple.py
@@ -0,0 +1,23 @@
+"""
+=================
+Pygraphviz Simple
+=================
+
+An example showing how to use the interface to the pygraphviz
+AGraph class to convert to and from graphviz.
+
+Also see the pygraphviz documentation and examples at
+http://pygraphviz.github.io/
+"""
+
+import networkx as nx
+
+# plain graph
+G = nx.complete_graph(5)  # start with K5 in networkx
+A = nx.nx_agraph.to_agraph(G)  # convert to a graphviz graph
+X1 = nx.nx_agraph.from_agraph(A)  # convert back to networkx (but as Graph)
+X2 = nx.Graph(A)  # fancy way to do conversion
+G1 = nx.Graph(X1)  # now make it a Graph
+
+A.write("k5.dot")  # write to dot file
+X3 = nx.nx_agraph.read_dot("k5.dot")  # read from dotfile
diff --git a/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_write_dotfile.py b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_write_dotfile.py
new file mode 100644
index 0000000..8b34f98
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/pygraphviz/plot_write_dotfile.py
@@ -0,0 +1,23 @@
+"""
+=============
+Write Dotfile
+=============
+
+
+Write a dot file from a networkx graph for further processing with graphviz.
+
+You need to have either pygraphviz or pydot for this example.
+
+See https://networkx.github.io/documentation/latest/reference/drawing.html
+"""
+
+import networkx as nx
+
+# This example needs Graphviz and either PyGraphviz or pydot.
+# from networkx.drawing.nx_pydot import write_dot
+from networkx.drawing.nx_agraph import write_dot
+
+
+G = nx.grid_2d_graph(5, 5)  # 5x5 grid
+write_dot(G, "grid.dot")
+print("Now run: neato -Tps grid.dot >grid.ps")
diff --git a/c_env/share/doc/networkx-2.5/examples/subclass/README.txt b/c_env/share/doc/networkx-2.5/examples/subclass/README.txt
new file mode 100644
index 0000000..e3650b1
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/subclass/README.txt
@@ -0,0 +1,2 @@
+Subclass
+--------
diff --git a/c_env/share/doc/networkx-2.5/examples/subclass/plot_antigraph.py b/c_env/share/doc/networkx-2.5/examples/subclass/plot_antigraph.py
new file mode 100644
index 0000000..ef80f5c
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/subclass/plot_antigraph.py
@@ -0,0 +1,191 @@
+"""
+=========
+Antigraph
+=========
+
+Complement graph class for small footprint when working on dense graphs.
+
+This class allows you to add the edges that *do not exist* in the dense
+graph. However, when applying algorithms to this complement graph data
+structure, it behaves as if it were the dense version. So it can be used
+directly in several NetworkX algorithms.
+
+This subclass has only been tested for k-core, connected_components,
+and biconnected_components algorithms but might also work for other
+algorithms.
+
+"""
+import networkx as nx
+from networkx.exception import NetworkXError
+import matplotlib.pyplot as plt
+
+
+class AntiGraph(nx.Graph):
+    """
+    Class for complement graphs.
+
+    The main goal is to be able to work with big and dense graphs with
+    a low memory footprint.
+
+    In this class you add the edges that *do not exist* in the dense graph,
+    the report methods of the class return the neighbors, the edges and
+    the degree as if it was the dense graph. Thus it's possible to use
+    an instance of this class with some of NetworkX functions.
+    """
+
+    all_edge_dict = {"weight": 1}
+
+    def single_edge_dict(self):
+        return self.all_edge_dict
+
+    edge_attr_dict_factory = single_edge_dict
+
+    def __getitem__(self, n):
+        """Return a dict of neighbors of node n in the dense graph.
+
+        Parameters
+        ----------
+        n : node
+           A node in the graph.
+
+        Returns
+        -------
+        adj_dict : dictionary
+           The adjacency dictionary for nodes connected to n.
+
+        """
+        return {
+            node: self.all_edge_dict for node in set(self.adj) - set(self.adj[n]) - {n}
+        }
+
+    def neighbors(self, n):
+        """Return an iterator over all neighbors of node n in the
+           dense graph.
+
+        """
+        try:
+            return iter(set(self.adj) - set(self.adj[n]) - {n})
+        except KeyError as e:
+            raise NetworkXError(f"The node {n} is not in the graph.") from e
+
+    def degree(self, nbunch=None, weight=None):
+        """Return an iterator for (node, degree) in the dense graph.
+
+        The node degree is the number of edges adjacent to the node.
+
+        Parameters
+        ----------
+        nbunch : iterable container, optional (default=all nodes)
+            A container of nodes.  The container will be iterated
+            through once.
+
+        weight : string or None, optional (default=None)
+           The edge attribute that holds the numerical value used
+           as a weight.  If None, then each edge has weight 1.
+           The degree is the sum of the edge weights adjacent to the node.
+
+        Returns
+        -------
+        nd_iter : iterator
+            The iterator returns two-tuples of (node, degree).
+
+        See Also
+        --------
+        degree
+
+        Examples
+        --------
+        >>> G = nx.path_graph(4)  # or DiGraph, MultiGraph, MultiDiGraph, etc
+        >>> list(G.degree(0))  # node 0 with degree 1
+        [(0, 1)]
+        >>> list(G.degree([0, 1]))
+        [(0, 1), (1, 2)]
+
+        """
+        if nbunch is None:
+            nodes_nbrs = (
+                (
+                    n,
+                    {
+                        v: self.all_edge_dict
+                        for v in set(self.adj) - set(self.adj[n]) - {n}
+                    },
+                )
+                for n in self.nodes()
+            )
+        elif nbunch in self:
+            nbrs = set(self.nodes()) - set(self.adj[nbunch]) - {nbunch}
+            return len(nbrs)
+        else:
+            nodes_nbrs = (
+                (
+                    n,
+                    {
+                        v: self.all_edge_dict
+                        for v in set(self.nodes()) - set(self.adj[n]) - {n}
+                    },
+                )
+                for n in self.nbunch_iter(nbunch)
+            )
+
+        if weight is None:
+            return ((n, len(nbrs)) for n, nbrs in nodes_nbrs)
+        else:
+            # AntiGraph is a ThinGraph so all edges have weight 1
+            return (
+                (n, sum((nbrs[nbr].get(weight, 1)) for nbr in nbrs))
+                for n, nbrs in nodes_nbrs
+            )
+
+    def adjacency_iter(self):
+        """Return an iterator of (node, adjacency set) tuples for all nodes
+           in the dense graph.
+
+        This is the fastest way to look at every edge.
+        For directed graphs, only outgoing adjacencies are included.
+
+        Returns
+        -------
+        adj_iter : iterator
+           An iterator of (node, adjacency set) for all nodes in
+           the graph.
+
+        """
+        for n in self.adj:
+            yield (n, set(self.adj) - set(self.adj[n]) - {n})
+
+
+# Build several pairs of graphs, a regular graph
+# and the AntiGraph of it's complement, which behaves
+# as if it were the original graph.
+Gnp = nx.gnp_random_graph(20, 0.8, seed=42)
+Anp = AntiGraph(nx.complement(Gnp))
+Gd = nx.davis_southern_women_graph()
+Ad = AntiGraph(nx.complement(Gd))
+Gk = nx.karate_club_graph()
+Ak = AntiGraph(nx.complement(Gk))
+pairs = [(Gnp, Anp), (Gd, Ad), (Gk, Ak)]
+# test connected components
+for G, A in pairs:
+    gc = [set(c) for c in nx.connected_components(G)]
+    ac = [set(c) for c in nx.connected_components(A)]
+    for comp in ac:
+        assert comp in gc
+# test biconnected components
+for G, A in pairs:
+    gc = [set(c) for c in nx.biconnected_components(G)]
+    ac = [set(c) for c in nx.biconnected_components(A)]
+    for comp in ac:
+        assert comp in gc
+# test degree
+for G, A in pairs:
+    node = list(G.nodes())[0]
+    nodes = list(G.nodes())[1:4]
+    assert G.degree(node) == A.degree(node)
+    assert sum(d for n, d in G.degree()) == sum(d for n, d in A.degree())
+    # AntiGraph is a ThinGraph, so all the weights are 1
+    assert sum(d for n, d in A.degree()) == sum(d for n, d in A.degree(weight="weight"))
+    assert sum(d for n, d in G.degree(nodes)) == sum(d for n, d in A.degree(nodes))
+
+nx.draw(Gnp)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/examples/subclass/plot_printgraph.py b/c_env/share/doc/networkx-2.5/examples/subclass/plot_printgraph.py
new file mode 100644
index 0000000..b6a5527
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/examples/subclass/plot_printgraph.py
@@ -0,0 +1,87 @@
+"""
+===========
+Print Graph
+===========
+
+Example subclass of the Graph class.
+"""
+
+import matplotlib.pyplot as plt
+import networkx as nx
+from networkx import Graph
+
+
+class PrintGraph(Graph):
+    """
+    Example subclass of the Graph class.
+
+    Prints activity log to file or standard output.
+    """
+
+    def __init__(self, data=None, name="", file=None, **attr):
+        Graph.__init__(self, data=data, name=name, **attr)
+        if file is None:
+            import sys
+
+            self.fh = sys.stdout
+        else:
+            self.fh = open(file, "w")
+
+    def add_node(self, n, attr_dict=None, **attr):
+        Graph.add_node(self, n, attr_dict=attr_dict, **attr)
+        self.fh.write(f"Add node: {n}\n")
+
+    def add_nodes_from(self, nodes, **attr):
+        for n in nodes:
+            self.add_node(n, **attr)
+
+    def remove_node(self, n):
+        Graph.remove_node(self, n)
+        self.fh.write(f"Remove node: {n}\n")
+
+    def remove_nodes_from(self, nodes):
+        for n in nodes:
+            self.remove_node(n)
+
+    def add_edge(self, u, v, attr_dict=None, **attr):
+        Graph.add_edge(self, u, v, attr_dict=attr_dict, **attr)
+        self.fh.write(f"Add edge: {u}-{v}\n")
+
+    def add_edges_from(self, ebunch, attr_dict=None, **attr):
+        for e in ebunch:
+            u, v = e[0:2]
+            self.add_edge(u, v, attr_dict=attr_dict, **attr)
+
+    def remove_edge(self, u, v):
+        Graph.remove_edge(self, u, v)
+        self.fh.write(f"Remove edge: {u}-{v}\n")
+
+    def remove_edges_from(self, ebunch):
+        for e in ebunch:
+            u, v = e[0:2]
+            self.remove_edge(u, v)
+
+    def clear(self):
+        Graph.clear(self)
+        self.fh.write("Clear graph\n")
+
+
+G = PrintGraph()
+G.add_node("foo")
+G.add_nodes_from("bar", weight=8)
+G.remove_node("b")
+G.remove_nodes_from("ar")
+print("Nodes in G: ", G.nodes(data=True))
+G.add_edge(0, 1, weight=10)
+print("Edges in G: ", G.edges(data=True))
+G.remove_edge(0, 1)
+G.add_edges_from(zip(range(0, 3), range(1, 4)), weight=10)
+print("Edges in G: ", G.edges(data=True))
+G.remove_edges_from(zip(range(0, 3), range(1, 4)))
+print("Edges in G: ", G.edges(data=True))
+
+G = PrintGraph()
+nx.add_path(G, range(10))
+nx.add_star(G, range(9, 13))
+nx.draw(G)
+plt.show()
diff --git a/c_env/share/doc/networkx-2.5/requirements.txt b/c_env/share/doc/networkx-2.5/requirements.txt
new file mode 100644
index 0000000..296e685
--- /dev/null
+++ b/c_env/share/doc/networkx-2.5/requirements.txt
@@ -0,0 +1,2 @@
+-r requirements/default.txt
+-r requirements/test.txt
diff --git a/c_env/share/jupyter/nbextensions/plotlywidget/extension.js b/c_env/share/jupyter/nbextensions/plotlywidget/extension.js
new file mode 100644
index 0000000..cab4f36
--- /dev/null
+++ b/c_env/share/jupyter/nbextensions/plotlywidget/extension.js
@@ -0,0 +1,92 @@
+define(function() { return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId]) {
+/******/ 			return installedModules[moduleId].exports;
+/******/ 		}
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			i: moduleId,
+/******/ 			l: false,
+/******/ 			exports: {}
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.l = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// define getter function for harmony exports
+/******/ 	__webpack_require__.d = function(exports, name, getter) {
+/******/ 		if(!__webpack_require__.o(exports, name)) {
+/******/ 			Object.defineProperty(exports, name, {
+/******/ 				configurable: false,
+/******/ 				enumerable: true,
+/******/ 				get: getter
+/******/ 			});
+/******/ 		}
+/******/ 	};
+/******/
+/******/ 	// getDefaultExport function for compatibility with non-harmony modules
+/******/ 	__webpack_require__.n = function(module) {
+/******/ 		var getter = module && module.__esModule ?
+/******/ 			function getDefault() { return module['default']; } :
+/******/ 			function getModuleExports() { return module; };
+/******/ 		__webpack_require__.d(getter, 'a', getter);
+/******/ 		return getter;
+/******/ 	};
+/******/
+/******/ 	// Object.prototype.hasOwnProperty.call
+/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(__webpack_require__.s = 0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports) {
+
+// This file contains the javascript that is run when the notebook is loaded.
+// It contains some requirejs configuration and the `load_ipython_extension`
+// which is required for any notebook extension.
+
+// Configure requirejs
+if (window.require) {
+    window.require.config({
+        map: {
+            "*" : {
+                "plotlywidget": "nbextensions/plotlywidget/index"
+            }
+        }
+    });
+}
+
+// Export the required load_ipython_extention
+module.exports = {
+    load_ipython_extension: function() {}
+};
+
+
+/***/ })
+/******/ ])});;
\ No newline at end of file
diff --git a/c_env/share/jupyter/nbextensions/plotlywidget/index.js b/c_env/share/jupyter/nbextensions/plotlywidget/index.js
new file mode 100644
index 0000000..772f237
--- /dev/null
+++ b/c_env/share/jupyter/nbextensions/plotlywidget/index.js
@@ -0,0 +1,36820 @@
+define(["@jupyter-widgets/base"], function(__WEBPACK_EXTERNAL_MODULE_21__) { return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId]) {
+/******/ 			return installedModules[moduleId].exports;
+/******/ 		}
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			i: moduleId,
+/******/ 			l: false,
+/******/ 			exports: {}
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.l = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// define getter function for harmony exports
+/******/ 	__webpack_require__.d = function(exports, name, getter) {
+/******/ 		if(!__webpack_require__.o(exports, name)) {
+/******/ 			Object.defineProperty(exports, name, {
+/******/ 				configurable: false,
+/******/ 				enumerable: true,
+/******/ 				get: getter
+/******/ 			});
+/******/ 		}
+/******/ 	};
+/******/
+/******/ 	// getDefaultExport function for compatibility with non-harmony modules
+/******/ 	__webpack_require__.n = function(module) {
+/******/ 		var getter = module && module.__esModule ?
+/******/ 			function getDefault() { return module['default']; } :
+/******/ 			function getModuleExports() { return module; };
+/******/ 		__webpack_require__.d(getter, 'a', getter);
+/******/ 		return getter;
+/******/ 	};
+/******/
+/******/ 	// Object.prototype.hasOwnProperty.call
+/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(__webpack_require__.s = 19);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+ * inspired by is-number <https://github.com/jonschlinkert/is-number>
+ * but significantly simplified and sped up by ignoring number and string constructors
+ * ie these return false:
+ *   new Number(1)
+ *   new String('1')
+ */
+
+
+
+var allBlankCharCodes = __webpack_require__(26);
+
+module.exports = function(n) {
+    var type = typeof n;
+    if(type === 'string') {
+        var original = n;
+        n = +n;
+        // whitespace strings cast to zero - filter them out
+        if(n===0 && allBlankCharCodes(original)) return false;
+    }
+    else if(type !== 'number') return false;
+
+    return n - n < 1;
+};
+
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var isArray = Array.isArray;
+
+// IE9 fallbacks
+
+var ab = (typeof ArrayBuffer === 'undefined' || !ArrayBuffer.isView) ?
+    {isView: function() { return false; }} :
+    ArrayBuffer;
+
+var dv = (typeof DataView === 'undefined') ?
+    function() {} :
+    DataView;
+
+function isTypedArray(a) {
+    return ab.isView(a) && !(a instanceof dv);
+}
+exports.isTypedArray = isTypedArray;
+
+function isArrayOrTypedArray(a) {
+    return isArray(a) || isTypedArray(a);
+}
+exports.isArrayOrTypedArray = isArrayOrTypedArray;
+
+/*
+ * Test whether an input object is 1D.
+ *
+ * Assumes we already know the object is an array.
+ *
+ * Looks only at the first element, if the dimensionality is
+ * not consistent we won't figure that out here.
+ */
+function isArray1D(a) {
+    return !isArrayOrTypedArray(a[0]);
+}
+exports.isArray1D = isArray1D;
+
+/*
+ * Ensures an array has the right amount of storage space. If it doesn't
+ * exist, it creates an array. If it does exist, it returns it if too
+ * short or truncates it in-place.
+ *
+ * The goal is to just reuse memory to avoid a bit of excessive garbage
+ * collection.
+ */
+exports.ensureArray = function(out, n) {
+    // TODO: typed array support here? This is only used in
+    // traces/carpet/compute_control_points
+    if(!isArray(out)) out = [];
+
+    // If too long, truncate. (If too short, it will grow
+    // automatically so we don't care about that case)
+    out.length = n;
+
+    return out;
+};
+
+/*
+ * TypedArray-compatible concatenation of n arrays
+ * if all arrays are the same type it will preserve that type,
+ * otherwise it falls back on Array.
+ * Also tries to avoid copying, in case one array has zero length
+ * But never mutates an existing array
+ */
+exports.concat = function() {
+    var args = [];
+    var allArray = true;
+    var totalLen = 0;
+
+    var _constructor, arg0, i, argi, posi, leni, out, j;
+
+    for(i = 0; i < arguments.length; i++) {
+        argi = arguments[i];
+        leni = argi.length;
+        if(leni) {
+            if(arg0) args.push(argi);
+            else {
+                arg0 = argi;
+                posi = leni;
+            }
+
+            if(isArray(argi)) {
+                _constructor = false;
+            } else {
+                allArray = false;
+                if(!totalLen) {
+                    _constructor = argi.constructor;
+                } else if(_constructor !== argi.constructor) {
+                    // TODO: in principle we could upgrade here,
+                    // ie keep typed array but convert all to Float64Array?
+                    _constructor = false;
+                }
+            }
+
+            totalLen += leni;
+        }
+    }
+
+    if(!totalLen) return [];
+    if(!args.length) return arg0;
+
+    if(allArray) return arg0.concat.apply(arg0, args);
+    if(_constructor) {
+        // matching typed arrays
+        out = new _constructor(totalLen);
+        out.set(arg0);
+        for(i = 0; i < args.length; i++) {
+            argi = args[i];
+            out.set(argi, posi);
+            posi += argi.length;
+        }
+        return out;
+    }
+
+    // mismatched types or Array + typed
+    out = new Array(totalLen);
+    for(j = 0; j < arg0.length; j++) out[j] = arg0[j];
+    for(i = 0; i < args.length; i++) {
+        argi = args[i];
+        for(j = 0; j < argi.length; j++) out[posi + j] = argi[j];
+        posi += j;
+    }
+    return out;
+};
+
+exports.maxRowLength = function(z) {
+    return _rowLength(z, Math.max, 0);
+};
+
+exports.minRowLength = function(z) {
+    return _rowLength(z, Math.min, Infinity);
+};
+
+function _rowLength(z, fn, len0) {
+    if(isArrayOrTypedArray(z)) {
+        if(isArrayOrTypedArray(z[0])) {
+            var len = len0;
+            for(var i = 0; i < z.length; i++) {
+                len = fn(len, z[i].length);
+            }
+            return len;
+        } else {
+            return z.length;
+        }
+    }
+    return 0;
+}
+
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/**
+ * sanitized modulus function that always returns in the range [0, d)
+ * rather than (-d, 0] if v is negative
+ */
+function mod(v, d) {
+    var out = v % d;
+    return out < 0 ? out + d : out;
+}
+
+/**
+ * sanitized modulus function that always returns in the range [-d/2, d/2]
+ * rather than (-d, 0] if v is negative
+ */
+function modHalf(v, d) {
+    return Math.abs(v) > (d / 2) ?
+        v - Math.round(v / d) * d :
+        v;
+}
+
+module.exports = {
+    mod: mod,
+    modHalf: modHalf
+};
+
+
+/***/ }),
+/* 3 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+// more info: http://stackoverflow.com/questions/18531624/isplainobject-thing
+module.exports = function isPlainObject(obj) {
+    // We need to be a little less strict in the `imagetest` container because
+    // of how async image requests are handled.
+    //
+    // N.B. isPlainObject(new Constructor()) will return true in `imagetest`
+    if(window && window.process && window.process.versions) {
+        return Object.prototype.toString.call(obj) === '[object Object]';
+    }
+
+    return (
+        Object.prototype.toString.call(obj) === '[object Object]' &&
+        Object.getPrototypeOf(obj) === Object.prototype
+    );
+};
+
+
+/***/ }),
+/* 4 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var isPlainObject = __webpack_require__(3);
+var isArray = Array.isArray;
+
+function primitivesLoopSplice(source, target) {
+    var i, value;
+    for(i = 0; i < source.length; i++) {
+        value = source[i];
+        if(value !== null && typeof(value) === 'object') {
+            return false;
+        }
+        if(value !== void(0)) {
+            target[i] = value;
+        }
+    }
+    return true;
+}
+
+exports.extendFlat = function() {
+    return _extend(arguments, false, false, false);
+};
+
+exports.extendDeep = function() {
+    return _extend(arguments, true, false, false);
+};
+
+exports.extendDeepAll = function() {
+    return _extend(arguments, true, true, false);
+};
+
+exports.extendDeepNoArrays = function() {
+    return _extend(arguments, true, false, true);
+};
+
+/*
+ * Inspired by https://github.com/justmoon/node-extend/blob/master/index.js
+ * All credit to the jQuery authors for perfecting this amazing utility.
+ *
+ * API difference with jQuery version:
+ * - No optional boolean (true -> deep extend) first argument,
+ *   use `extendFlat` for first-level only extend and
+ *   use `extendDeep` for a deep extend.
+ *
+ * Other differences with jQuery version:
+ * - Uses a modern (and faster) isPlainObject routine.
+ * - Expected to work with object {} and array [] arguments only.
+ * - Does not check for circular structure.
+ *   FYI: jQuery only does a check across one level.
+ *   Warning: this might result in infinite loops.
+ *
+ */
+function _extend(inputs, isDeep, keepAllKeys, noArrayCopies) {
+    var target = inputs[0];
+    var length = inputs.length;
+
+    var input, key, src, copy, copyIsArray, clone, allPrimitives;
+
+    // TODO does this do the right thing for typed arrays?
+
+    if(length === 2 && isArray(target) && isArray(inputs[1]) && target.length === 0) {
+        allPrimitives = primitivesLoopSplice(inputs[1], target);
+
+        if(allPrimitives) {
+            return target;
+        } else {
+            target.splice(0, target.length); // reset target and continue to next block
+        }
+    }
+
+    for(var i = 1; i < length; i++) {
+        input = inputs[i];
+
+        for(key in input) {
+            src = target[key];
+            copy = input[key];
+
+            if(noArrayCopies && isArray(copy)) {
+                // Stop early and just transfer the array if array copies are disallowed:
+
+                target[key] = copy;
+            } else if(isDeep && copy && (isPlainObject(copy) || (copyIsArray = isArray(copy)))) {
+                // recurse if we're merging plain objects or arrays
+
+                if(copyIsArray) {
+                    copyIsArray = false;
+                    clone = src && isArray(src) ? src : [];
+                } else {
+                    clone = src && isPlainObject(src) ? src : {};
+                }
+
+                // never move original objects, clone them
+                target[key] = _extend([clone, copy], isDeep, keepAllKeys, noArrayCopies);
+            } else if(typeof copy !== 'undefined' || keepAllKeys) {
+                // don't bring in undefined values, except for extendDeepAll
+
+                target[key] = copy;
+            }
+        }
+    }
+
+    return target;
+}
+
+
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/* eslint-disable no-console */
+
+var dfltConfig = __webpack_require__(38).dfltConfig;
+
+var loggers = module.exports = {};
+
+/**
+ * ------------------------------------------
+ * debugging tools
+ * ------------------------------------------
+ */
+
+loggers.log = function() {
+    if(dfltConfig.logging > 1) {
+        var messages = ['LOG:'];
+
+        for(var i = 0; i < arguments.length; i++) {
+            messages.push(arguments[i]);
+        }
+
+        apply(console.trace || console.log, messages);
+    }
+};
+
+loggers.warn = function() {
+    if(dfltConfig.logging > 0) {
+        var messages = ['WARN:'];
+
+        for(var i = 0; i < arguments.length; i++) {
+            messages.push(arguments[i]);
+        }
+
+        apply(console.trace || console.log, messages);
+    }
+};
+
+loggers.error = function() {
+    if(dfltConfig.logging > 0) {
+        var messages = ['ERROR:'];
+
+        for(var i = 0; i < arguments.length; i++) {
+            messages.push(arguments[i]);
+        }
+
+        apply(console.error, messages);
+    }
+};
+
+/*
+ * Robust apply, for IE9 where console.log doesn't support
+ * apply like other functions do
+ */
+function apply(f, args) {
+    if(f && f.apply) {
+        try {
+            // `this` should always be console, since here we're always
+            // applying a method of the console object.
+            f.apply(console, args);
+            return;
+        } catch(e) { /* in case apply failed, fall back on the code below */ }
+    }
+
+    // no apply - just try calling the function on each arg independently
+    for(var i = 0; i < args.length; i++) {
+        try {
+            f(args[i]);
+        } catch(e) {
+            // still fails - last resort simple console.log
+            console.log(args[i]);
+        }
+    }
+}
+
+
+/***/ }),
+/* 6 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;!function() {
+  var d3 = {
+    version: "3.5.17"
+  };
+  var d3_arraySlice = [].slice, d3_array = function(list) {
+    return d3_arraySlice.call(list);
+  };
+  var d3_document = this.document;
+  function d3_documentElement(node) {
+    return node && (node.ownerDocument || node.document || node).documentElement;
+  }
+  function d3_window(node) {
+    return node && (node.ownerDocument && node.ownerDocument.defaultView || node.document && node || node.defaultView);
+  }
+  if (d3_document) {
+    try {
+      d3_array(d3_document.documentElement.childNodes)[0].nodeType;
+    } catch (e) {
+      d3_array = function(list) {
+        var i = list.length, array = new Array(i);
+        while (i--) array[i] = list[i];
+        return array;
+      };
+    }
+  }
+  if (!Date.now) Date.now = function() {
+    return +new Date();
+  };
+  if (d3_document) {
+    try {
+      d3_document.createElement("DIV").style.setProperty("opacity", 0, "");
+    } catch (error) {
+      var d3_element_prototype = this.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = this.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
+      d3_element_prototype.setAttribute = function(name, value) {
+        d3_element_setAttribute.call(this, name, value + "");
+      };
+      d3_element_prototype.setAttributeNS = function(space, local, value) {
+        d3_element_setAttributeNS.call(this, space, local, value + "");
+      };
+      d3_style_prototype.setProperty = function(name, value, priority) {
+        d3_style_setProperty.call(this, name, value + "", priority);
+      };
+    }
+  }
+  d3.ascending = d3_ascending;
+  function d3_ascending(a, b) {
+    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+  }
+  d3.descending = function(a, b) {
+    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
+  };
+  d3.min = function(array, f) {
+    var i = -1, n = array.length, a, b;
+    if (arguments.length === 1) {
+      while (++i < n) if ((b = array[i]) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = array[i]) != null && a > b) a = b;
+    } else {
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
+    }
+    return a;
+  };
+  d3.max = function(array, f) {
+    var i = -1, n = array.length, a, b;
+    if (arguments.length === 1) {
+      while (++i < n) if ((b = array[i]) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = array[i]) != null && b > a) a = b;
+    } else {
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
+    }
+    return a;
+  };
+  d3.extent = function(array, f) {
+    var i = -1, n = array.length, a, b, c;
+    if (arguments.length === 1) {
+      while (++i < n) if ((b = array[i]) != null && b >= b) {
+        a = c = b;
+        break;
+      }
+      while (++i < n) if ((b = array[i]) != null) {
+        if (a > b) a = b;
+        if (c < b) c = b;
+      }
+    } else {
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
+        a = c = b;
+        break;
+      }
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
+        if (a > b) a = b;
+        if (c < b) c = b;
+      }
+    }
+    return [ a, c ];
+  };
+  function d3_number(x) {
+    return x === null ? NaN : +x;
+  }
+  function d3_numeric(x) {
+    return !isNaN(x);
+  }
+  d3.sum = function(array, f) {
+    var s = 0, n = array.length, a, i = -1;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_numeric(a = +array[i])) s += a;
+    } else {
+      while (++i < n) if (d3_numeric(a = +f.call(array, array[i], i))) s += a;
+    }
+    return s;
+  };
+  d3.mean = function(array, f) {
+    var s = 0, n = array.length, a, i = -1, j = n;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) s += a; else --j;
+    } else {
+      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) s += a; else --j;
+    }
+    if (j) return s / j;
+  };
+  d3.quantile = function(values, p) {
+    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
+    return e ? v + e * (values[h] - v) : v;
+  };
+  d3.median = function(array, f) {
+    var numbers = [], n = array.length, a, i = -1;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) numbers.push(a);
+    } else {
+      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) numbers.push(a);
+    }
+    if (numbers.length) return d3.quantile(numbers.sort(d3_ascending), .5);
+  };
+  d3.variance = function(array, f) {
+    var n = array.length, m = 0, a, d, s = 0, i = -1, j = 0;
+    if (arguments.length === 1) {
+      while (++i < n) {
+        if (d3_numeric(a = d3_number(array[i]))) {
+          d = a - m;
+          m += d / ++j;
+          s += d * (a - m);
+        }
+      }
+    } else {
+      while (++i < n) {
+        if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) {
+          d = a - m;
+          m += d / ++j;
+          s += d * (a - m);
+        }
+      }
+    }
+    if (j > 1) return s / (j - 1);
+  };
+  d3.deviation = function() {
+    var v = d3.variance.apply(this, arguments);
+    return v ? Math.sqrt(v) : v;
+  };
+  function d3_bisector(compare) {
+    return {
+      left: function(a, x, lo, hi) {
+        if (arguments.length < 3) lo = 0;
+        if (arguments.length < 4) hi = a.length;
+        while (lo < hi) {
+          var mid = lo + hi >>> 1;
+          if (compare(a[mid], x) < 0) lo = mid + 1; else hi = mid;
+        }
+        return lo;
+      },
+      right: function(a, x, lo, hi) {
+        if (arguments.length < 3) lo = 0;
+        if (arguments.length < 4) hi = a.length;
+        while (lo < hi) {
+          var mid = lo + hi >>> 1;
+          if (compare(a[mid], x) > 0) hi = mid; else lo = mid + 1;
+        }
+        return lo;
+      }
+    };
+  }
+  var d3_bisect = d3_bisector(d3_ascending);
+  d3.bisectLeft = d3_bisect.left;
+  d3.bisect = d3.bisectRight = d3_bisect.right;
+  d3.bisector = function(f) {
+    return d3_bisector(f.length === 1 ? function(d, x) {
+      return d3_ascending(f(d), x);
+    } : f);
+  };
+  d3.shuffle = function(array, i0, i1) {
+    if ((m = arguments.length) < 3) {
+      i1 = array.length;
+      if (m < 2) i0 = 0;
+    }
+    var m = i1 - i0, t, i;
+    while (m) {
+      i = Math.random() * m-- | 0;
+      t = array[m + i0], array[m + i0] = array[i + i0], array[i + i0] = t;
+    }
+    return array;
+  };
+  d3.permute = function(array, indexes) {
+    var i = indexes.length, permutes = new Array(i);
+    while (i--) permutes[i] = array[indexes[i]];
+    return permutes;
+  };
+  d3.pairs = function(array) {
+    var i = 0, n = array.length - 1, p0, p1 = array[0], pairs = new Array(n < 0 ? 0 : n);
+    while (i < n) pairs[i] = [ p0 = p1, p1 = array[++i] ];
+    return pairs;
+  };
+  d3.transpose = function(matrix) {
+    if (!(n = matrix.length)) return [];
+    for (var i = -1, m = d3.min(matrix, d3_transposeLength), transpose = new Array(m); ++i < m; ) {
+      for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n; ) {
+        row[j] = matrix[j][i];
+      }
+    }
+    return transpose;
+  };
+  function d3_transposeLength(d) {
+    return d.length;
+  }
+  d3.zip = function() {
+    return d3.transpose(arguments);
+  };
+  d3.keys = function(map) {
+    var keys = [];
+    for (var key in map) keys.push(key);
+    return keys;
+  };
+  d3.values = function(map) {
+    var values = [];
+    for (var key in map) values.push(map[key]);
+    return values;
+  };
+  d3.entries = function(map) {
+    var entries = [];
+    for (var key in map) entries.push({
+      key: key,
+      value: map[key]
+    });
+    return entries;
+  };
+  d3.merge = function(arrays) {
+    var n = arrays.length, m, i = -1, j = 0, merged, array;
+    while (++i < n) j += arrays[i].length;
+    merged = new Array(j);
+    while (--n >= 0) {
+      array = arrays[n];
+      m = array.length;
+      while (--m >= 0) {
+        merged[--j] = array[m];
+      }
+    }
+    return merged;
+  };
+  var abs = Math.abs;
+  d3.range = function(start, stop, step) {
+    if (arguments.length < 3) {
+      step = 1;
+      if (arguments.length < 2) {
+        stop = start;
+        start = 0;
+      }
+    }
+    if ((stop - start) / step === Infinity) throw new Error("infinite range");
+    var range = [], k = d3_range_integerScale(abs(step)), i = -1, j;
+    start *= k, stop *= k, step *= k;
+    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);
+    return range;
+  };
+  function d3_range_integerScale(x) {
+    var k = 1;
+    while (x * k % 1) k *= 10;
+    return k;
+  }
+  function d3_class(ctor, properties) {
+    for (var key in properties) {
+      Object.defineProperty(ctor.prototype, key, {
+        value: properties[key],
+        enumerable: false
+      });
+    }
+  }
+  d3.map = function(object, f) {
+    var map = new d3_Map();
+    if (object instanceof d3_Map) {
+      object.forEach(function(key, value) {
+        map.set(key, value);
+      });
+    } else if (Array.isArray(object)) {
+      var i = -1, n = object.length, o;
+      if (arguments.length === 1) while (++i < n) map.set(i, object[i]); else while (++i < n) map.set(f.call(object, o = object[i], i), o);
+    } else {
+      for (var key in object) map.set(key, object[key]);
+    }
+    return map;
+  };
+  function d3_Map() {
+    this._ = Object.create(null);
+  }
+  var d3_map_proto = "__proto__", d3_map_zero = "\x00";
+  d3_class(d3_Map, {
+    has: d3_map_has,
+    get: function(key) {
+      return this._[d3_map_escape(key)];
+    },
+    set: function(key, value) {
+      return this._[d3_map_escape(key)] = value;
+    },
+    remove: d3_map_remove,
+    keys: d3_map_keys,
+    values: function() {
+      var values = [];
+      for (var key in this._) values.push(this._[key]);
+      return values;
+    },
+    entries: function() {
+      var entries = [];
+      for (var key in this._) entries.push({
+        key: d3_map_unescape(key),
+        value: this._[key]
+      });
+      return entries;
+    },
+    size: d3_map_size,
+    empty: d3_map_empty,
+    forEach: function(f) {
+      for (var key in this._) f.call(this, d3_map_unescape(key), this._[key]);
+    }
+  });
+  function d3_map_escape(key) {
+    return (key += "") === d3_map_proto || key[0] === d3_map_zero ? d3_map_zero + key : key;
+  }
+  function d3_map_unescape(key) {
+    return (key += "")[0] === d3_map_zero ? key.slice(1) : key;
+  }
+  function d3_map_has(key) {
+    return d3_map_escape(key) in this._;
+  }
+  function d3_map_remove(key) {
+    return (key = d3_map_escape(key)) in this._ && delete this._[key];
+  }
+  function d3_map_keys() {
+    var keys = [];
+    for (var key in this._) keys.push(d3_map_unescape(key));
+    return keys;
+  }
+  function d3_map_size() {
+    var size = 0;
+    for (var key in this._) ++size;
+    return size;
+  }
+  function d3_map_empty() {
+    for (var key in this._) return false;
+    return true;
+  }
+  d3.nest = function() {
+    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
+    function map(mapType, array, depth) {
+      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;
+      var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values;
+      while (++i < n) {
+        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
+          values.push(object);
+        } else {
+          valuesByKey.set(keyValue, [ object ]);
+        }
+      }
+      if (mapType) {
+        object = mapType();
+        setter = function(keyValue, values) {
+          object.set(keyValue, map(mapType, values, depth));
+        };
+      } else {
+        object = {};
+        setter = function(keyValue, values) {
+          object[keyValue] = map(mapType, values, depth);
+        };
+      }
+      valuesByKey.forEach(setter);
+      return object;
+    }
+    function entries(map, depth) {
+      if (depth >= keys.length) return map;
+      var array = [], sortKey = sortKeys[depth++];
+      map.forEach(function(key, keyMap) {
+        array.push({
+          key: key,
+          values: entries(keyMap, depth)
+        });
+      });
+      return sortKey ? array.sort(function(a, b) {
+        return sortKey(a.key, b.key);
+      }) : array;
+    }
+    nest.map = function(array, mapType) {
+      return map(mapType, array, 0);
+    };
+    nest.entries = function(array) {
+      return entries(map(d3.map, array, 0), 0);
+    };
+    nest.key = function(d) {
+      keys.push(d);
+      return nest;
+    };
+    nest.sortKeys = function(order) {
+      sortKeys[keys.length - 1] = order;
+      return nest;
+    };
+    nest.sortValues = function(order) {
+      sortValues = order;
+      return nest;
+    };
+    nest.rollup = function(f) {
+      rollup = f;
+      return nest;
+    };
+    return nest;
+  };
+  d3.set = function(array) {
+    var set = new d3_Set();
+    if (array) for (var i = 0, n = array.length; i < n; ++i) set.add(array[i]);
+    return set;
+  };
+  function d3_Set() {
+    this._ = Object.create(null);
+  }
+  d3_class(d3_Set, {
+    has: d3_map_has,
+    add: function(key) {
+      this._[d3_map_escape(key += "")] = true;
+      return key;
+    },
+    remove: d3_map_remove,
+    values: d3_map_keys,
+    size: d3_map_size,
+    empty: d3_map_empty,
+    forEach: function(f) {
+      for (var key in this._) f.call(this, d3_map_unescape(key));
+    }
+  });
+  d3.behavior = {};
+  function d3_identity(d) {
+    return d;
+  }
+  d3.rebind = function(target, source) {
+    var i = 1, n = arguments.length, method;
+    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
+    return target;
+  };
+  function d3_rebind(target, source, method) {
+    return function() {
+      var value = method.apply(source, arguments);
+      return value === source ? target : value;
+    };
+  }
+  function d3_vendorSymbol(object, name) {
+    if (name in object) return name;
+    name = name.charAt(0).toUpperCase() + name.slice(1);
+    for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) {
+      var prefixName = d3_vendorPrefixes[i] + name;
+      if (prefixName in object) return prefixName;
+    }
+  }
+  var d3_vendorPrefixes = [ "webkit", "ms", "moz", "Moz", "o", "O" ];
+  function d3_noop() {}
+  d3.dispatch = function() {
+    var dispatch = new d3_dispatch(), i = -1, n = arguments.length;
+    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+    return dispatch;
+  };
+  function d3_dispatch() {}
+  d3_dispatch.prototype.on = function(type, listener) {
+    var i = type.indexOf("."), name = "";
+    if (i >= 0) {
+      name = type.slice(i + 1);
+      type = type.slice(0, i);
+    }
+    if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
+    if (arguments.length === 2) {
+      if (listener == null) for (type in this) {
+        if (this.hasOwnProperty(type)) this[type].on(name, null);
+      }
+      return this;
+    }
+  };
+  function d3_dispatch_event(dispatch) {
+    var listeners = [], listenerByName = new d3_Map();
+    function event() {
+      var z = listeners, i = -1, n = z.length, l;
+      while (++i < n) if (l = z[i].on) l.apply(this, arguments);
+      return dispatch;
+    }
+    event.on = function(name, listener) {
+      var l = listenerByName.get(name), i;
+      if (arguments.length < 2) return l && l.on;
+      if (l) {
+        l.on = null;
+        listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
+        listenerByName.remove(name);
+      }
+      if (listener) listeners.push(listenerByName.set(name, {
+        on: listener
+      }));
+      return dispatch;
+    };
+    return event;
+  }
+  d3.event = null;
+  function d3_eventPreventDefault() {
+    d3.event.preventDefault();
+  }
+  function d3_eventSource() {
+    var e = d3.event, s;
+    while (s = e.sourceEvent) e = s;
+    return e;
+  }
+  function d3_eventDispatch(target) {
+    var dispatch = new d3_dispatch(), i = 0, n = arguments.length;
+    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+    dispatch.of = function(thiz, argumentz) {
+      return function(e1) {
+        try {
+          var e0 = e1.sourceEvent = d3.event;
+          e1.target = target;
+          d3.event = e1;
+          dispatch[e1.type].apply(thiz, argumentz);
+        } finally {
+          d3.event = e0;
+        }
+      };
+    };
+    return dispatch;
+  }
+  d3.requote = function(s) {
+    return s.replace(d3_requote_re, "\\$&");
+  };
+  var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
+  var d3_subclass = {}.__proto__ ? function(object, prototype) {
+    object.__proto__ = prototype;
+  } : function(object, prototype) {
+    for (var property in prototype) object[property] = prototype[property];
+  };
+  function d3_selection(groups) {
+    d3_subclass(groups, d3_selectionPrototype);
+    return groups;
+  }
+  var d3_select = function(s, n) {
+    return n.querySelector(s);
+  }, d3_selectAll = function(s, n) {
+    return n.querySelectorAll(s);
+  }, d3_selectMatches = function(n, s) {
+    var d3_selectMatcher = n.matches || n[d3_vendorSymbol(n, "matchesSelector")];
+    d3_selectMatches = function(n, s) {
+      return d3_selectMatcher.call(n, s);
+    };
+    return d3_selectMatches(n, s);
+  };
+  if (typeof Sizzle === "function") {
+    d3_select = function(s, n) {
+      return Sizzle(s, n)[0] || null;
+    };
+    d3_selectAll = Sizzle;
+    d3_selectMatches = Sizzle.matchesSelector;
+  }
+  d3.selection = function() {
+    return d3.select(d3_document.documentElement);
+  };
+  var d3_selectionPrototype = d3.selection.prototype = [];
+  d3_selectionPrototype.select = function(selector) {
+    var subgroups = [], subgroup, subnode, group, node;
+    selector = d3_selection_selector(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = (group = this[j]).parentNode;
+      for (var i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroup.push(subnode = selector.call(node, node.__data__, i, j));
+          if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selector(selector) {
+    return typeof selector === "function" ? selector : function() {
+      return d3_select(selector, this);
+    };
+  }
+  d3_selectionPrototype.selectAll = function(selector) {
+    var subgroups = [], subgroup, node;
+    selector = d3_selection_selectorAll(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i, j)));
+          subgroup.parentNode = node;
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selectorAll(selector) {
+    return typeof selector === "function" ? selector : function() {
+      return d3_selectAll(selector, this);
+    };
+  }
+  var d3_nsXhtml = "http://www.w3.org/1999/xhtml";
+  var d3_nsPrefix = {
+    svg: "http://www.w3.org/2000/svg",
+    xhtml: d3_nsXhtml,
+    xlink: "http://www.w3.org/1999/xlink",
+    xml: "http://www.w3.org/XML/1998/namespace",
+    xmlns: "http://www.w3.org/2000/xmlns/"
+  };
+  d3.ns = {
+    prefix: d3_nsPrefix,
+    qualify: function(name) {
+      var i = name.indexOf(":"), prefix = name;
+      if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
+      return d3_nsPrefix.hasOwnProperty(prefix) ? {
+        space: d3_nsPrefix[prefix],
+        local: name
+      } : name;
+    }
+  };
+  d3_selectionPrototype.attr = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") {
+        var node = this.node();
+        name = d3.ns.qualify(name);
+        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);
+      }
+      for (value in name) this.each(d3_selection_attr(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_attr(name, value));
+  };
+  function d3_selection_attr(name, value) {
+    name = d3.ns.qualify(name);
+    function attrNull() {
+      this.removeAttribute(name);
+    }
+    function attrNullNS() {
+      this.removeAttributeNS(name.space, name.local);
+    }
+    function attrConstant() {
+      this.setAttribute(name, value);
+    }
+    function attrConstantNS() {
+      this.setAttributeNS(name.space, name.local, value);
+    }
+    function attrFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);
+    }
+    function attrFunctionNS() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
+    }
+    return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;
+  }
+  function d3_collapse(s) {
+    return s.trim().replace(/\s+/g, " ");
+  }
+  d3_selectionPrototype.classed = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") {
+        var node = this.node(), n = (name = d3_selection_classes(name)).length, i = -1;
+        if (value = node.classList) {
+          while (++i < n) if (!value.contains(name[i])) return false;
+        } else {
+          value = node.getAttribute("class");
+          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;
+        }
+        return true;
+      }
+      for (value in name) this.each(d3_selection_classed(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_classed(name, value));
+  };
+  function d3_selection_classedRe(name) {
+    return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
+  }
+  function d3_selection_classes(name) {
+    return (name + "").trim().split(/^|\s+/);
+  }
+  function d3_selection_classed(name, value) {
+    name = d3_selection_classes(name).map(d3_selection_classedName);
+    var n = name.length;
+    function classedConstant() {
+      var i = -1;
+      while (++i < n) name[i](this, value);
+    }
+    function classedFunction() {
+      var i = -1, x = value.apply(this, arguments);
+      while (++i < n) name[i](this, x);
+    }
+    return typeof value === "function" ? classedFunction : classedConstant;
+  }
+  function d3_selection_classedName(name) {
+    var re = d3_selection_classedRe(name);
+    return function(node, value) {
+      if (c = node.classList) return value ? c.add(name) : c.remove(name);
+      var c = node.getAttribute("class") || "";
+      if (value) {
+        re.lastIndex = 0;
+        if (!re.test(c)) node.setAttribute("class", d3_collapse(c + " " + name));
+      } else {
+        node.setAttribute("class", d3_collapse(c.replace(re, " ")));
+      }
+    };
+  }
+  d3_selectionPrototype.style = function(name, value, priority) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof name !== "string") {
+        if (n < 2) value = "";
+        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));
+        return this;
+      }
+      if (n < 2) {
+        var node = this.node();
+        return d3_window(node).getComputedStyle(node, null).getPropertyValue(name);
+      }
+      priority = "";
+    }
+    return this.each(d3_selection_style(name, value, priority));
+  };
+  function d3_selection_style(name, value, priority) {
+    function styleNull() {
+      this.style.removeProperty(name);
+    }
+    function styleConstant() {
+      this.style.setProperty(name, value, priority);
+    }
+    function styleFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);
+    }
+    return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;
+  }
+  d3_selectionPrototype.property = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") return this.node()[name];
+      for (value in name) this.each(d3_selection_property(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_property(name, value));
+  };
+  function d3_selection_property(name, value) {
+    function propertyNull() {
+      delete this[name];
+    }
+    function propertyConstant() {
+      this[name] = value;
+    }
+    function propertyFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) delete this[name]; else this[name] = x;
+    }
+    return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
+  }
+  d3_selectionPrototype.text = function(value) {
+    return arguments.length ? this.each(typeof value === "function" ? function() {
+      var v = value.apply(this, arguments);
+      this.textContent = v == null ? "" : v;
+    } : value == null ? function() {
+      this.textContent = "";
+    } : function() {
+      this.textContent = value;
+    }) : this.node().textContent;
+  };
+  d3_selectionPrototype.html = function(value) {
+    return arguments.length ? this.each(typeof value === "function" ? function() {
+      var v = value.apply(this, arguments);
+      this.innerHTML = v == null ? "" : v;
+    } : value == null ? function() {
+      this.innerHTML = "";
+    } : function() {
+      this.innerHTML = value;
+    }) : this.node().innerHTML;
+  };
+  d3_selectionPrototype.append = function(name) {
+    name = d3_selection_creator(name);
+    return this.select(function() {
+      return this.appendChild(name.apply(this, arguments));
+    });
+  };
+  function d3_selection_creator(name) {
+    function create() {
+      var document = this.ownerDocument, namespace = this.namespaceURI;
+      return namespace === d3_nsXhtml && document.documentElement.namespaceURI === d3_nsXhtml ? document.createElement(name) : document.createElementNS(namespace, name);
+    }
+    function createNS() {
+      return this.ownerDocument.createElementNS(name.space, name.local);
+    }
+    return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? createNS : create;
+  }
+  d3_selectionPrototype.insert = function(name, before) {
+    name = d3_selection_creator(name);
+    before = d3_selection_selector(before);
+    return this.select(function() {
+      return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null);
+    });
+  };
+  d3_selectionPrototype.remove = function() {
+    return this.each(d3_selectionRemove);
+  };
+  function d3_selectionRemove() {
+    var parent = this.parentNode;
+    if (parent) parent.removeChild(this);
+  }
+  d3_selectionPrototype.data = function(value, key) {
+    var i = -1, n = this.length, group, node;
+    if (!arguments.length) {
+      value = new Array(n = (group = this[0]).length);
+      while (++i < n) {
+        if (node = group[i]) {
+          value[i] = node.__data__;
+        }
+      }
+      return value;
+    }
+    function bind(group, groupData) {
+      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData;
+      if (key) {
+        var nodeByKeyValue = new d3_Map(), keyValues = new Array(n), keyValue;
+        for (i = -1; ++i < n; ) {
+          if (node = group[i]) {
+            if (nodeByKeyValue.has(keyValue = key.call(node, node.__data__, i))) {
+              exitNodes[i] = node;
+            } else {
+              nodeByKeyValue.set(keyValue, node);
+            }
+            keyValues[i] = keyValue;
+          }
+        }
+        for (i = -1; ++i < m; ) {
+          if (!(node = nodeByKeyValue.get(keyValue = key.call(groupData, nodeData = groupData[i], i)))) {
+            enterNodes[i] = d3_selection_dataNode(nodeData);
+          } else if (node !== true) {
+            updateNodes[i] = node;
+            node.__data__ = nodeData;
+          }
+          nodeByKeyValue.set(keyValue, true);
+        }
+        for (i = -1; ++i < n; ) {
+          if (i in keyValues && nodeByKeyValue.get(keyValues[i]) !== true) {
+            exitNodes[i] = group[i];
+          }
+        }
+      } else {
+        for (i = -1; ++i < n0; ) {
+          node = group[i];
+          nodeData = groupData[i];
+          if (node) {
+            node.__data__ = nodeData;
+            updateNodes[i] = node;
+          } else {
+            enterNodes[i] = d3_selection_dataNode(nodeData);
+          }
+        }
+        for (;i < m; ++i) {
+          enterNodes[i] = d3_selection_dataNode(groupData[i]);
+        }
+        for (;i < n; ++i) {
+          exitNodes[i] = group[i];
+        }
+      }
+      enterNodes.update = updateNodes;
+      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
+      enter.push(enterNodes);
+      update.push(updateNodes);
+      exit.push(exitNodes);
+    }
+    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);
+    if (typeof value === "function") {
+      while (++i < n) {
+        bind(group = this[i], value.call(group, group.parentNode.__data__, i));
+      }
+    } else {
+      while (++i < n) {
+        bind(group = this[i], value);
+      }
+    }
+    update.enter = function() {
+      return enter;
+    };
+    update.exit = function() {
+      return exit;
+    };
+    return update;
+  };
+  function d3_selection_dataNode(data) {
+    return {
+      __data__: data
+    };
+  }
+  d3_selectionPrototype.datum = function(value) {
+    return arguments.length ? this.property("__data__", value) : this.property("__data__");
+  };
+  d3_selectionPrototype.filter = function(filter) {
+    var subgroups = [], subgroup, group, node;
+    if (typeof filter !== "function") filter = d3_selection_filter(filter);
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = (group = this[j]).parentNode;
+      for (var i = 0, n = group.length; i < n; i++) {
+        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
+          subgroup.push(node);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_filter(selector) {
+    return function() {
+      return d3_selectMatches(this, selector);
+    };
+  }
+  d3_selectionPrototype.order = function() {
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {
+        if (node = group[i]) {
+          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
+          next = node;
+        }
+      }
+    }
+    return this;
+  };
+  d3_selectionPrototype.sort = function(comparator) {
+    comparator = d3_selection_sortComparator.apply(this, arguments);
+    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);
+    return this.order();
+  };
+  function d3_selection_sortComparator(comparator) {
+    if (!arguments.length) comparator = d3_ascending;
+    return function(a, b) {
+      return a && b ? comparator(a.__data__, b.__data__) : !a - !b;
+    };
+  }
+  d3_selectionPrototype.each = function(callback) {
+    return d3_selection_each(this, function(node, i, j) {
+      callback.call(node, node.__data__, i, j);
+    });
+  };
+  function d3_selection_each(groups, callback) {
+    for (var j = 0, m = groups.length; j < m; j++) {
+      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {
+        if (node = group[i]) callback(node, i, j);
+      }
+    }
+    return groups;
+  }
+  d3_selectionPrototype.call = function(callback) {
+    var args = d3_array(arguments);
+    callback.apply(args[0] = this, args);
+    return this;
+  };
+  d3_selectionPrototype.empty = function() {
+    return !this.node();
+  };
+  d3_selectionPrototype.node = function() {
+    for (var j = 0, m = this.length; j < m; j++) {
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        var node = group[i];
+        if (node) return node;
+      }
+    }
+    return null;
+  };
+  d3_selectionPrototype.size = function() {
+    var n = 0;
+    d3_selection_each(this, function() {
+      ++n;
+    });
+    return n;
+  };
+  function d3_selection_enter(selection) {
+    d3_subclass(selection, d3_selection_enterPrototype);
+    return selection;
+  }
+  var d3_selection_enterPrototype = [];
+  d3.selection.enter = d3_selection_enter;
+  d3.selection.enter.prototype = d3_selection_enterPrototype;
+  d3_selection_enterPrototype.append = d3_selectionPrototype.append;
+  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
+  d3_selection_enterPrototype.node = d3_selectionPrototype.node;
+  d3_selection_enterPrototype.call = d3_selectionPrototype.call;
+  d3_selection_enterPrototype.size = d3_selectionPrototype.size;
+  d3_selection_enterPrototype.select = function(selector) {
+    var subgroups = [], subgroup, subnode, upgroup, group, node;
+    for (var j = -1, m = this.length; ++j < m; ) {
+      upgroup = (group = this[j]).update;
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = group.parentNode;
+      for (var i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i, j));
+          subnode.__data__ = node.__data__;
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  d3_selection_enterPrototype.insert = function(name, before) {
+    if (arguments.length < 2) before = d3_selection_enterInsertBefore(this);
+    return d3_selectionPrototype.insert.call(this, name, before);
+  };
+  function d3_selection_enterInsertBefore(enter) {
+    var i0, j0;
+    return function(d, i, j) {
+      var group = enter[j].update, n = group.length, node;
+      if (j != j0) j0 = j, i0 = 0;
+      if (i >= i0) i0 = i + 1;
+      while (!(node = group[i0]) && ++i0 < n) ;
+      return node;
+    };
+  }
+  d3.select = function(node) {
+    var group;
+    if (typeof node === "string") {
+      group = [ d3_select(node, d3_document) ];
+      group.parentNode = d3_document.documentElement;
+    } else {
+      group = [ node ];
+      group.parentNode = d3_documentElement(node);
+    }
+    return d3_selection([ group ]);
+  };
+  d3.selectAll = function(nodes) {
+    var group;
+    if (typeof nodes === "string") {
+      group = d3_array(d3_selectAll(nodes, d3_document));
+      group.parentNode = d3_document.documentElement;
+    } else {
+      group = d3_array(nodes);
+      group.parentNode = null;
+    }
+    return d3_selection([ group ]);
+  };
+  d3_selectionPrototype.on = function(type, listener, capture) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof type !== "string") {
+        if (n < 2) listener = false;
+        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));
+        return this;
+      }
+      if (n < 2) return (n = this.node()["__on" + type]) && n._;
+      capture = false;
+    }
+    return this.each(d3_selection_on(type, listener, capture));
+  };
+  function d3_selection_on(type, listener, capture) {
+    var name = "__on" + type, i = type.indexOf("."), wrap = d3_selection_onListener;
+    if (i > 0) type = type.slice(0, i);
+    var filter = d3_selection_onFilters.get(type);
+    if (filter) type = filter, wrap = d3_selection_onFilter;
+    function onRemove() {
+      var l = this[name];
+      if (l) {
+        this.removeEventListener(type, l, l.$);
+        delete this[name];
+      }
+    }
+    function onAdd() {
+      var l = wrap(listener, d3_array(arguments));
+      onRemove.call(this);
+      this.addEventListener(type, this[name] = l, l.$ = capture);
+      l._ = listener;
+    }
+    function removeAll() {
+      var re = new RegExp("^__on([^.]+)" + d3.requote(type) + "$"), match;
+      for (var name in this) {
+        if (match = name.match(re)) {
+          var l = this[name];
+          this.removeEventListener(match[1], l, l.$);
+          delete this[name];
+        }
+      }
+    }
+    return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll;
+  }
+  var d3_selection_onFilters = d3.map({
+    mouseenter: "mouseover",
+    mouseleave: "mouseout"
+  });
+  if (d3_document) {
+    d3_selection_onFilters.forEach(function(k) {
+      if ("on" + k in d3_document) d3_selection_onFilters.remove(k);
+    });
+  }
+  function d3_selection_onListener(listener, argumentz) {
+    return function(e) {
+      var o = d3.event;
+      d3.event = e;
+      argumentz[0] = this.__data__;
+      try {
+        listener.apply(this, argumentz);
+      } finally {
+        d3.event = o;
+      }
+    };
+  }
+  function d3_selection_onFilter(listener, argumentz) {
+    var l = d3_selection_onListener(listener, argumentz);
+    return function(e) {
+      var target = this, related = e.relatedTarget;
+      if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) {
+        l.call(target, e);
+      }
+    };
+  }
+  var d3_event_dragSelect, d3_event_dragId = 0;
+  function d3_event_dragSuppress(node) {
+    var name = ".dragsuppress-" + ++d3_event_dragId, click = "click" + name, w = d3.select(d3_window(node)).on("touchmove" + name, d3_eventPreventDefault).on("dragstart" + name, d3_eventPreventDefault).on("selectstart" + name, d3_eventPreventDefault);
+    if (d3_event_dragSelect == null) {
+      d3_event_dragSelect = "onselectstart" in node ? false : d3_vendorSymbol(node.style, "userSelect");
+    }
+    if (d3_event_dragSelect) {
+      var style = d3_documentElement(node).style, select = style[d3_event_dragSelect];
+      style[d3_event_dragSelect] = "none";
+    }
+    return function(suppressClick) {
+      w.on(name, null);
+      if (d3_event_dragSelect) style[d3_event_dragSelect] = select;
+      if (suppressClick) {
+        var off = function() {
+          w.on(click, null);
+        };
+        w.on(click, function() {
+          d3_eventPreventDefault();
+          off();
+        }, true);
+        setTimeout(off, 0);
+      }
+    };
+  }
+  d3.mouse = function(container) {
+    return d3_mousePoint(container, d3_eventSource());
+  };
+  var d3_mouse_bug44083 = this.navigator && /WebKit/.test(this.navigator.userAgent) ? -1 : 0;
+  function d3_mousePoint(container, e) {
+    if (e.changedTouches) e = e.changedTouches[0];
+    var svg = container.ownerSVGElement || container;
+    if (svg.createSVGPoint) {
+      var point = svg.createSVGPoint();
+      if (d3_mouse_bug44083 < 0) {
+        var window = d3_window(container);
+        if (window.scrollX || window.scrollY) {
+          svg = d3.select("body").append("svg").style({
+            position: "absolute",
+            top: 0,
+            left: 0,
+            margin: 0,
+            padding: 0,
+            border: "none"
+          }, "important");
+          var ctm = svg[0][0].getScreenCTM();
+          d3_mouse_bug44083 = !(ctm.f || ctm.e);
+          svg.remove();
+        }
+      }
+      if (d3_mouse_bug44083) point.x = e.pageX, point.y = e.pageY; else point.x = e.clientX, 
+      point.y = e.clientY;
+      point = point.matrixTransform(container.getScreenCTM().inverse());
+      return [ point.x, point.y ];
+    }
+    var rect = container.getBoundingClientRect();
+    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];
+  }
+  d3.touch = function(container, touches, identifier) {
+    if (arguments.length < 3) identifier = touches, touches = d3_eventSource().changedTouches;
+    if (touches) for (var i = 0, n = touches.length, touch; i < n; ++i) {
+      if ((touch = touches[i]).identifier === identifier) {
+        return d3_mousePoint(container, touch);
+      }
+    }
+  };
+  d3.behavior.drag = function() {
+    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, d3_window, "mousemove", "mouseup"), touchstart = dragstart(d3_behavior_dragTouchId, d3.touch, d3_identity, "touchmove", "touchend");
+    function drag() {
+      this.on("mousedown.drag", mousedown).on("touchstart.drag", touchstart);
+    }
+    function dragstart(id, position, subject, move, end) {
+      return function() {
+        var that = this, target = d3.event.target.correspondingElement || d3.event.target, parent = that.parentNode, dispatch = event.of(that, arguments), dragged = 0, dragId = id(), dragName = ".drag" + (dragId == null ? "" : "-" + dragId), dragOffset, dragSubject = d3.select(subject(target)).on(move + dragName, moved).on(end + dragName, ended), dragRestore = d3_event_dragSuppress(target), position0 = position(parent, dragId);
+        if (origin) {
+          dragOffset = origin.apply(that, arguments);
+          dragOffset = [ dragOffset.x - position0[0], dragOffset.y - position0[1] ];
+        } else {
+          dragOffset = [ 0, 0 ];
+        }
+        dispatch({
+          type: "dragstart"
+        });
+        function moved() {
+          var position1 = position(parent, dragId), dx, dy;
+          if (!position1) return;
+          dx = position1[0] - position0[0];
+          dy = position1[1] - position0[1];
+          dragged |= dx | dy;
+          position0 = position1;
+          dispatch({
+            type: "drag",
+            x: position1[0] + dragOffset[0],
+            y: position1[1] + dragOffset[1],
+            dx: dx,
+            dy: dy
+          });
+        }
+        function ended() {
+          if (!position(parent, dragId)) return;
+          dragSubject.on(move + dragName, null).on(end + dragName, null);
+          dragRestore(dragged);
+          dispatch({
+            type: "dragend"
+          });
+        }
+      };
+    }
+    drag.origin = function(x) {
+      if (!arguments.length) return origin;
+      origin = x;
+      return drag;
+    };
+    return d3.rebind(drag, event, "on");
+  };
+  function d3_behavior_dragTouchId() {
+    return d3.event.changedTouches[0].identifier;
+  }
+  d3.touches = function(container, touches) {
+    if (arguments.length < 2) touches = d3_eventSource().touches;
+    return touches ? d3_array(touches).map(function(touch) {
+      var point = d3_mousePoint(container, touch);
+      point.identifier = touch.identifier;
+      return point;
+    }) : [];
+  };
+  var ε = 1e-6, ε2 = ε * ε, π = Math.PI, τ = 2 * π, τε = τ - ε, halfπ = π / 2, d3_radians = π / 180, d3_degrees = 180 / π;
+  function d3_sgn(x) {
+    return x > 0 ? 1 : x < 0 ? -1 : 0;
+  }
+  function d3_cross2d(a, b, c) {
+    return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
+  }
+  function d3_acos(x) {
+    return x > 1 ? 0 : x < -1 ? π : Math.acos(x);
+  }
+  function d3_asin(x) {
+    return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x);
+  }
+  function d3_sinh(x) {
+    return ((x = Math.exp(x)) - 1 / x) / 2;
+  }
+  function d3_cosh(x) {
+    return ((x = Math.exp(x)) + 1 / x) / 2;
+  }
+  function d3_tanh(x) {
+    return ((x = Math.exp(2 * x)) - 1) / (x + 1);
+  }
+  function d3_haversin(x) {
+    return (x = Math.sin(x / 2)) * x;
+  }
+  var ρ = Math.SQRT2, ρ2 = 2, ρ4 = 4;
+  d3.interpolateZoom = function(p0, p1) {
+    var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], ux1 = p1[0], uy1 = p1[1], w1 = p1[2], dx = ux1 - ux0, dy = uy1 - uy0, d2 = dx * dx + dy * dy, i, S;
+    if (d2 < ε2) {
+      S = Math.log(w1 / w0) / ρ;
+      i = function(t) {
+        return [ ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(ρ * t * S) ];
+      };
+    } else {
+      var d1 = Math.sqrt(d2), b0 = (w1 * w1 - w0 * w0 + ρ4 * d2) / (2 * w0 * ρ2 * d1), b1 = (w1 * w1 - w0 * w0 - ρ4 * d2) / (2 * w1 * ρ2 * d1), r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
+      S = (r1 - r0) / ρ;
+      i = function(t) {
+        var s = t * S, coshr0 = d3_cosh(r0), u = w0 / (ρ2 * d1) * (coshr0 * d3_tanh(ρ * s + r0) - d3_sinh(r0));
+        return [ ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / d3_cosh(ρ * s + r0) ];
+      };
+    }
+    i.duration = S * 1e3;
+    return i;
+  };
+  d3.behavior.zoom = function() {
+    var view = {
+      x: 0,
+      y: 0,
+      k: 1
+    }, translate0, center0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, duration = 250, zooming = 0, mousedown = "mousedown.zoom", mousemove = "mousemove.zoom", mouseup = "mouseup.zoom", mousewheelTimer, touchstart = "touchstart.zoom", touchtime, event = d3_eventDispatch(zoom, "zoomstart", "zoom", "zoomend"), x0, x1, y0, y1;
+    if (!d3_behavior_zoomWheel) {
+      d3_behavior_zoomWheel = "onwheel" in d3_document ? (d3_behavior_zoomDelta = function() {
+        return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1);
+      }, "wheel") : "onmousewheel" in d3_document ? (d3_behavior_zoomDelta = function() {
+        return d3.event.wheelDelta;
+      }, "mousewheel") : (d3_behavior_zoomDelta = function() {
+        return -d3.event.detail;
+      }, "MozMousePixelScroll");
+    }
+    function zoom(g) {
+      g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + ".zoom", mousewheeled).on("dblclick.zoom", dblclicked).on(touchstart, touchstarted);
+    }
+    zoom.event = function(g) {
+      g.each(function() {
+        var dispatch = event.of(this, arguments), view1 = view;
+        if (d3_transitionInheritId) {
+          d3.select(this).transition().each("start.zoom", function() {
+            view = this.__chart__ || {
+              x: 0,
+              y: 0,
+              k: 1
+            };
+            zoomstarted(dispatch);
+          }).tween("zoom:zoom", function() {
+            var dx = size[0], dy = size[1], cx = center0 ? center0[0] : dx / 2, cy = center0 ? center0[1] : dy / 2, i = d3.interpolateZoom([ (cx - view.x) / view.k, (cy - view.y) / view.k, dx / view.k ], [ (cx - view1.x) / view1.k, (cy - view1.y) / view1.k, dx / view1.k ]);
+            return function(t) {
+              var l = i(t), k = dx / l[2];
+              this.__chart__ = view = {
+                x: cx - l[0] * k,
+                y: cy - l[1] * k,
+                k: k
+              };
+              zoomed(dispatch);
+            };
+          }).each("interrupt.zoom", function() {
+            zoomended(dispatch);
+          }).each("end.zoom", function() {
+            zoomended(dispatch);
+          });
+        } else {
+          this.__chart__ = view;
+          zoomstarted(dispatch);
+          zoomed(dispatch);
+          zoomended(dispatch);
+        }
+      });
+    };
+    zoom.translate = function(_) {
+      if (!arguments.length) return [ view.x, view.y ];
+      view = {
+        x: +_[0],
+        y: +_[1],
+        k: view.k
+      };
+      rescale();
+      return zoom;
+    };
+    zoom.scale = function(_) {
+      if (!arguments.length) return view.k;
+      view = {
+        x: view.x,
+        y: view.y,
+        k: null
+      };
+      scaleTo(+_);
+      rescale();
+      return zoom;
+    };
+    zoom.scaleExtent = function(_) {
+      if (!arguments.length) return scaleExtent;
+      scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ];
+      return zoom;
+    };
+    zoom.center = function(_) {
+      if (!arguments.length) return center;
+      center = _ && [ +_[0], +_[1] ];
+      return zoom;
+    };
+    zoom.size = function(_) {
+      if (!arguments.length) return size;
+      size = _ && [ +_[0], +_[1] ];
+      return zoom;
+    };
+    zoom.duration = function(_) {
+      if (!arguments.length) return duration;
+      duration = +_;
+      return zoom;
+    };
+    zoom.x = function(z) {
+      if (!arguments.length) return x1;
+      x1 = z;
+      x0 = z.copy();
+      view = {
+        x: 0,
+        y: 0,
+        k: 1
+      };
+      return zoom;
+    };
+    zoom.y = function(z) {
+      if (!arguments.length) return y1;
+      y1 = z;
+      y0 = z.copy();
+      view = {
+        x: 0,
+        y: 0,
+        k: 1
+      };
+      return zoom;
+    };
+    function location(p) {
+      return [ (p[0] - view.x) / view.k, (p[1] - view.y) / view.k ];
+    }
+    function point(l) {
+      return [ l[0] * view.k + view.x, l[1] * view.k + view.y ];
+    }
+    function scaleTo(s) {
+      view.k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
+    }
+    function translateTo(p, l) {
+      l = point(l);
+      view.x += p[0] - l[0];
+      view.y += p[1] - l[1];
+    }
+    function zoomTo(that, p, l, k) {
+      that.__chart__ = {
+        x: view.x,
+        y: view.y,
+        k: view.k
+      };
+      scaleTo(Math.pow(2, k));
+      translateTo(center0 = p, l);
+      that = d3.select(that);
+      if (duration > 0) that = that.transition().duration(duration);
+      that.call(zoom.event);
+    }
+    function rescale() {
+      if (x1) x1.domain(x0.range().map(function(x) {
+        return (x - view.x) / view.k;
+      }).map(x0.invert));
+      if (y1) y1.domain(y0.range().map(function(y) {
+        return (y - view.y) / view.k;
+      }).map(y0.invert));
+    }
+    function zoomstarted(dispatch) {
+      if (!zooming++) dispatch({
+        type: "zoomstart"
+      });
+    }
+    function zoomed(dispatch) {
+      rescale();
+      dispatch({
+        type: "zoom",
+        scale: view.k,
+        translate: [ view.x, view.y ]
+      });
+    }
+    function zoomended(dispatch) {
+      if (!--zooming) dispatch({
+        type: "zoomend"
+      }), center0 = null;
+    }
+    function mousedowned() {
+      var that = this, dispatch = event.of(that, arguments), dragged = 0, subject = d3.select(d3_window(that)).on(mousemove, moved).on(mouseup, ended), location0 = location(d3.mouse(that)), dragRestore = d3_event_dragSuppress(that);
+      d3_selection_interrupt.call(that);
+      zoomstarted(dispatch);
+      function moved() {
+        dragged = 1;
+        translateTo(d3.mouse(that), location0);
+        zoomed(dispatch);
+      }
+      function ended() {
+        subject.on(mousemove, null).on(mouseup, null);
+        dragRestore(dragged);
+        zoomended(dispatch);
+      }
+    }
+    function touchstarted() {
+      var that = this, dispatch = event.of(that, arguments), locations0 = {}, distance0 = 0, scale0, zoomName = ".zoom-" + d3.event.changedTouches[0].identifier, touchmove = "touchmove" + zoomName, touchend = "touchend" + zoomName, targets = [], subject = d3.select(that), dragRestore = d3_event_dragSuppress(that);
+      started();
+      zoomstarted(dispatch);
+      subject.on(mousedown, null).on(touchstart, started);
+      function relocate() {
+        var touches = d3.touches(that);
+        scale0 = view.k;
+        touches.forEach(function(t) {
+          if (t.identifier in locations0) locations0[t.identifier] = location(t);
+        });
+        return touches;
+      }
+      function started() {
+        var target = d3.event.target;
+        d3.select(target).on(touchmove, moved).on(touchend, ended);
+        targets.push(target);
+        var changed = d3.event.changedTouches;
+        for (var i = 0, n = changed.length; i < n; ++i) {
+          locations0[changed[i].identifier] = null;
+        }
+        var touches = relocate(), now = Date.now();
+        if (touches.length === 1) {
+          if (now - touchtime < 500) {
+            var p = touches[0];
+            zoomTo(that, p, locations0[p.identifier], Math.floor(Math.log(view.k) / Math.LN2) + 1);
+            d3_eventPreventDefault();
+          }
+          touchtime = now;
+        } else if (touches.length > 1) {
+          var p = touches[0], q = touches[1], dx = p[0] - q[0], dy = p[1] - q[1];
+          distance0 = dx * dx + dy * dy;
+        }
+      }
+      function moved() {
+        var touches = d3.touches(that), p0, l0, p1, l1;
+        d3_selection_interrupt.call(that);
+        for (var i = 0, n = touches.length; i < n; ++i, l1 = null) {
+          p1 = touches[i];
+          if (l1 = locations0[p1.identifier]) {
+            if (l0) break;
+            p0 = p1, l0 = l1;
+          }
+        }
+        if (l1) {
+          var distance1 = (distance1 = p1[0] - p0[0]) * distance1 + (distance1 = p1[1] - p0[1]) * distance1, scale1 = distance0 && Math.sqrt(distance1 / distance0);
+          p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
+          l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
+          scaleTo(scale1 * scale0);
+        }
+        touchtime = null;
+        translateTo(p0, l0);
+        zoomed(dispatch);
+      }
+      function ended() {
+        if (d3.event.touches.length) {
+          var changed = d3.event.changedTouches;
+          for (var i = 0, n = changed.length; i < n; ++i) {
+            delete locations0[changed[i].identifier];
+          }
+          for (var identifier in locations0) {
+            return void relocate();
+          }
+        }
+        d3.selectAll(targets).on(zoomName, null);
+        subject.on(mousedown, mousedowned).on(touchstart, touchstarted);
+        dragRestore();
+        zoomended(dispatch);
+      }
+    }
+    function mousewheeled() {
+      var dispatch = event.of(this, arguments);
+      if (mousewheelTimer) clearTimeout(mousewheelTimer); else d3_selection_interrupt.call(this), 
+      translate0 = location(center0 = center || d3.mouse(this)), zoomstarted(dispatch);
+      mousewheelTimer = setTimeout(function() {
+        mousewheelTimer = null;
+        zoomended(dispatch);
+      }, 50);
+      d3_eventPreventDefault();
+      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k);
+      translateTo(center0, translate0);
+      zoomed(dispatch);
+    }
+    function dblclicked() {
+      var p = d3.mouse(this), k = Math.log(view.k) / Math.LN2;
+      zoomTo(this, p, location(p), d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1);
+    }
+    return d3.rebind(zoom, event, "on");
+  };
+  var d3_behavior_zoomInfinity = [ 0, Infinity ], d3_behavior_zoomDelta, d3_behavior_zoomWheel;
+  d3.color = d3_color;
+  function d3_color() {}
+  d3_color.prototype.toString = function() {
+    return this.rgb() + "";
+  };
+  d3.hsl = d3_hsl;
+  function d3_hsl(h, s, l) {
+    return this instanceof d3_hsl ? void (this.h = +h, this.s = +s, this.l = +l) : arguments.length < 2 ? h instanceof d3_hsl ? new d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : new d3_hsl(h, s, l);
+  }
+  var d3_hslPrototype = d3_hsl.prototype = new d3_color();
+  d3_hslPrototype.brighter = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return new d3_hsl(this.h, this.s, this.l / k);
+  };
+  d3_hslPrototype.darker = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return new d3_hsl(this.h, this.s, k * this.l);
+  };
+  d3_hslPrototype.rgb = function() {
+    return d3_hsl_rgb(this.h, this.s, this.l);
+  };
+  function d3_hsl_rgb(h, s, l) {
+    var m1, m2;
+    h = isNaN(h) ? 0 : (h %= 360) < 0 ? h + 360 : h;
+    s = isNaN(s) ? 0 : s < 0 ? 0 : s > 1 ? 1 : s;
+    l = l < 0 ? 0 : l > 1 ? 1 : l;
+    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
+    m1 = 2 * l - m2;
+    function v(h) {
+      if (h > 360) h -= 360; else if (h < 0) h += 360;
+      if (h < 60) return m1 + (m2 - m1) * h / 60;
+      if (h < 180) return m2;
+      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
+      return m1;
+    }
+    function vv(h) {
+      return Math.round(v(h) * 255);
+    }
+    return new d3_rgb(vv(h + 120), vv(h), vv(h - 120));
+  }
+  d3.hcl = d3_hcl;
+  function d3_hcl(h, c, l) {
+    return this instanceof d3_hcl ? void (this.h = +h, this.c = +c, this.l = +l) : arguments.length < 2 ? h instanceof d3_hcl ? new d3_hcl(h.h, h.c, h.l) : h instanceof d3_lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : new d3_hcl(h, c, l);
+  }
+  var d3_hclPrototype = d3_hcl.prototype = new d3_color();
+  d3_hclPrototype.brighter = function(k) {
+    return new d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
+  };
+  d3_hclPrototype.darker = function(k) {
+    return new d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
+  };
+  d3_hclPrototype.rgb = function() {
+    return d3_hcl_lab(this.h, this.c, this.l).rgb();
+  };
+  function d3_hcl_lab(h, c, l) {
+    if (isNaN(h)) h = 0;
+    if (isNaN(c)) c = 0;
+    return new d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);
+  }
+  d3.lab = d3_lab;
+  function d3_lab(l, a, b) {
+    return this instanceof d3_lab ? void (this.l = +l, this.a = +a, this.b = +b) : arguments.length < 2 ? l instanceof d3_lab ? new d3_lab(l.l, l.a, l.b) : l instanceof d3_hcl ? d3_hcl_lab(l.h, l.c, l.l) : d3_rgb_lab((l = d3_rgb(l)).r, l.g, l.b) : new d3_lab(l, a, b);
+  }
+  var d3_lab_K = 18;
+  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
+  var d3_labPrototype = d3_lab.prototype = new d3_color();
+  d3_labPrototype.brighter = function(k) {
+    return new d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
+  };
+  d3_labPrototype.darker = function(k) {
+    return new d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
+  };
+  d3_labPrototype.rgb = function() {
+    return d3_lab_rgb(this.l, this.a, this.b);
+  };
+  function d3_lab_rgb(l, a, b) {
+    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;
+    x = d3_lab_xyz(x) * d3_lab_X;
+    y = d3_lab_xyz(y) * d3_lab_Y;
+    z = d3_lab_xyz(z) * d3_lab_Z;
+    return new d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));
+  }
+  function d3_lab_hcl(l, a, b) {
+    return l > 0 ? new d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : new d3_hcl(NaN, NaN, l);
+  }
+  function d3_lab_xyz(x) {
+    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
+  }
+  function d3_xyz_lab(x) {
+    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
+  }
+  function d3_xyz_rgb(r) {
+    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));
+  }
+  d3.rgb = d3_rgb;
+  function d3_rgb(r, g, b) {
+    return this instanceof d3_rgb ? void (this.r = ~~r, this.g = ~~g, this.b = ~~b) : arguments.length < 2 ? r instanceof d3_rgb ? new d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : new d3_rgb(r, g, b);
+  }
+  function d3_rgbNumber(value) {
+    return new d3_rgb(value >> 16, value >> 8 & 255, value & 255);
+  }
+  function d3_rgbString(value) {
+    return d3_rgbNumber(value) + "";
+  }
+  var d3_rgbPrototype = d3_rgb.prototype = new d3_color();
+  d3_rgbPrototype.brighter = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    var r = this.r, g = this.g, b = this.b, i = 30;
+    if (!r && !g && !b) return new d3_rgb(i, i, i);
+    if (r && r < i) r = i;
+    if (g && g < i) g = i;
+    if (b && b < i) b = i;
+    return new d3_rgb(Math.min(255, r / k), Math.min(255, g / k), Math.min(255, b / k));
+  };
+  d3_rgbPrototype.darker = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return new d3_rgb(k * this.r, k * this.g, k * this.b);
+  };
+  d3_rgbPrototype.hsl = function() {
+    return d3_rgb_hsl(this.r, this.g, this.b);
+  };
+  d3_rgbPrototype.toString = function() {
+    return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
+  };
+  function d3_rgb_hex(v) {
+    return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);
+  }
+  function d3_rgb_parse(format, rgb, hsl) {
+    var r = 0, g = 0, b = 0, m1, m2, color;
+    m1 = /([a-z]+)\((.*)\)/.exec(format = format.toLowerCase());
+    if (m1) {
+      m2 = m1[2].split(",");
+      switch (m1[1]) {
+       case "hsl":
+        {
+          return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);
+        }
+
+       case "rgb":
+        {
+          return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));
+        }
+      }
+    }
+    if (color = d3_rgb_names.get(format)) {
+      return rgb(color.r, color.g, color.b);
+    }
+    if (format != null && format.charAt(0) === "#" && !isNaN(color = parseInt(format.slice(1), 16))) {
+      if (format.length === 4) {
+        r = (color & 3840) >> 4;
+        r = r >> 4 | r;
+        g = color & 240;
+        g = g >> 4 | g;
+        b = color & 15;
+        b = b << 4 | b;
+      } else if (format.length === 7) {
+        r = (color & 16711680) >> 16;
+        g = (color & 65280) >> 8;
+        b = color & 255;
+      }
+    }
+    return rgb(r, g, b);
+  }
+  function d3_rgb_hsl(r, g, b) {
+    var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2;
+    if (d) {
+      s = l < .5 ? d / (max + min) : d / (2 - max - min);
+      if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4;
+      h *= 60;
+    } else {
+      h = NaN;
+      s = l > 0 && l < 1 ? 0 : h;
+    }
+    return new d3_hsl(h, s, l);
+  }
+  function d3_rgb_lab(r, g, b) {
+    r = d3_rgb_xyz(r);
+    g = d3_rgb_xyz(g);
+    b = d3_rgb_xyz(b);
+    var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z);
+    return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z));
+  }
+  function d3_rgb_xyz(r) {
+    return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4);
+  }
+  function d3_rgb_parseNumber(c) {
+    var f = parseFloat(c);
+    return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
+  }
+  var d3_rgb_names = d3.map({
+    aliceblue: 15792383,
+    antiquewhite: 16444375,
+    aqua: 65535,
+    aquamarine: 8388564,
+    azure: 15794175,
+    beige: 16119260,
+    bisque: 16770244,
+    black: 0,
+    blanchedalmond: 16772045,
+    blue: 255,
+    blueviolet: 9055202,
+    brown: 10824234,
+    burlywood: 14596231,
+    cadetblue: 6266528,
+    chartreuse: 8388352,
+    chocolate: 13789470,
+    coral: 16744272,
+    cornflowerblue: 6591981,
+    cornsilk: 16775388,
+    crimson: 14423100,
+    cyan: 65535,
+    darkblue: 139,
+    darkcyan: 35723,
+    darkgoldenrod: 12092939,
+    darkgray: 11119017,
+    darkgreen: 25600,
+    darkgrey: 11119017,
+    darkkhaki: 12433259,
+    darkmagenta: 9109643,
+    darkolivegreen: 5597999,
+    darkorange: 16747520,
+    darkorchid: 10040012,
+    darkred: 9109504,
+    darksalmon: 15308410,
+    darkseagreen: 9419919,
+    darkslateblue: 4734347,
+    darkslategray: 3100495,
+    darkslategrey: 3100495,
+    darkturquoise: 52945,
+    darkviolet: 9699539,
+    deeppink: 16716947,
+    deepskyblue: 49151,
+    dimgray: 6908265,
+    dimgrey: 6908265,
+    dodgerblue: 2003199,
+    firebrick: 11674146,
+    floralwhite: 16775920,
+    forestgreen: 2263842,
+    fuchsia: 16711935,
+    gainsboro: 14474460,
+    ghostwhite: 16316671,
+    gold: 16766720,
+    goldenrod: 14329120,
+    gray: 8421504,
+    green: 32768,
+    greenyellow: 11403055,
+    grey: 8421504,
+    honeydew: 15794160,
+    hotpink: 16738740,
+    indianred: 13458524,
+    indigo: 4915330,
+    ivory: 16777200,
+    khaki: 15787660,
+    lavender: 15132410,
+    lavenderblush: 16773365,
+    lawngreen: 8190976,
+    lemonchiffon: 16775885,
+    lightblue: 11393254,
+    lightcoral: 15761536,
+    lightcyan: 14745599,
+    lightgoldenrodyellow: 16448210,
+    lightgray: 13882323,
+    lightgreen: 9498256,
+    lightgrey: 13882323,
+    lightpink: 16758465,
+    lightsalmon: 16752762,
+    lightseagreen: 2142890,
+    lightskyblue: 8900346,
+    lightslategray: 7833753,
+    lightslategrey: 7833753,
+    lightsteelblue: 11584734,
+    lightyellow: 16777184,
+    lime: 65280,
+    limegreen: 3329330,
+    linen: 16445670,
+    magenta: 16711935,
+    maroon: 8388608,
+    mediumaquamarine: 6737322,
+    mediumblue: 205,
+    mediumorchid: 12211667,
+    mediumpurple: 9662683,
+    mediumseagreen: 3978097,
+    mediumslateblue: 8087790,
+    mediumspringgreen: 64154,
+    mediumturquoise: 4772300,
+    mediumvioletred: 13047173,
+    midnightblue: 1644912,
+    mintcream: 16121850,
+    mistyrose: 16770273,
+    moccasin: 16770229,
+    navajowhite: 16768685,
+    navy: 128,
+    oldlace: 16643558,
+    olive: 8421376,
+    olivedrab: 7048739,
+    orange: 16753920,
+    orangered: 16729344,
+    orchid: 14315734,
+    palegoldenrod: 15657130,
+    palegreen: 10025880,
+    paleturquoise: 11529966,
+    palevioletred: 14381203,
+    papayawhip: 16773077,
+    peachpuff: 16767673,
+    peru: 13468991,
+    pink: 16761035,
+    plum: 14524637,
+    powderblue: 11591910,
+    purple: 8388736,
+    rebeccapurple: 6697881,
+    red: 16711680,
+    rosybrown: 12357519,
+    royalblue: 4286945,
+    saddlebrown: 9127187,
+    salmon: 16416882,
+    sandybrown: 16032864,
+    seagreen: 3050327,
+    seashell: 16774638,
+    sienna: 10506797,
+    silver: 12632256,
+    skyblue: 8900331,
+    slateblue: 6970061,
+    slategray: 7372944,
+    slategrey: 7372944,
+    snow: 16775930,
+    springgreen: 65407,
+    steelblue: 4620980,
+    tan: 13808780,
+    teal: 32896,
+    thistle: 14204888,
+    tomato: 16737095,
+    turquoise: 4251856,
+    violet: 15631086,
+    wheat: 16113331,
+    white: 16777215,
+    whitesmoke: 16119285,
+    yellow: 16776960,
+    yellowgreen: 10145074
+  });
+  d3_rgb_names.forEach(function(key, value) {
+    d3_rgb_names.set(key, d3_rgbNumber(value));
+  });
+  function d3_functor(v) {
+    return typeof v === "function" ? v : function() {
+      return v;
+    };
+  }
+  d3.functor = d3_functor;
+  d3.xhr = d3_xhrType(d3_identity);
+  function d3_xhrType(response) {
+    return function(url, mimeType, callback) {
+      if (arguments.length === 2 && typeof mimeType === "function") callback = mimeType, 
+      mimeType = null;
+      return d3_xhr(url, mimeType, response, callback);
+    };
+  }
+  function d3_xhr(url, mimeType, response, callback) {
+    var xhr = {}, dispatch = d3.dispatch("beforesend", "progress", "load", "error"), headers = {}, request = new XMLHttpRequest(), responseType = null;
+    if (this.XDomainRequest && !("withCredentials" in request) && /^(http(s)?:)?\/\//.test(url)) request = new XDomainRequest();
+    "onload" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() {
+      request.readyState > 3 && respond();
+    };
+    function respond() {
+      var status = request.status, result;
+      if (!status && d3_xhrHasResponse(request) || status >= 200 && status < 300 || status === 304) {
+        try {
+          result = response.call(xhr, request);
+        } catch (e) {
+          dispatch.error.call(xhr, e);
+          return;
+        }
+        dispatch.load.call(xhr, result);
+      } else {
+        dispatch.error.call(xhr, request);
+      }
+    }
+    request.onprogress = function(event) {
+      var o = d3.event;
+      d3.event = event;
+      try {
+        dispatch.progress.call(xhr, request);
+      } finally {
+        d3.event = o;
+      }
+    };
+    xhr.header = function(name, value) {
+      name = (name + "").toLowerCase();
+      if (arguments.length < 2) return headers[name];
+      if (value == null) delete headers[name]; else headers[name] = value + "";
+      return xhr;
+    };
+    xhr.mimeType = function(value) {
+      if (!arguments.length) return mimeType;
+      mimeType = value == null ? null : value + "";
+      return xhr;
+    };
+    xhr.responseType = function(value) {
+      if (!arguments.length) return responseType;
+      responseType = value;
+      return xhr;
+    };
+    xhr.response = function(value) {
+      response = value;
+      return xhr;
+    };
+    [ "get", "post" ].forEach(function(method) {
+      xhr[method] = function() {
+        return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments)));
+      };
+    });
+    xhr.send = function(method, data, callback) {
+      if (arguments.length === 2 && typeof data === "function") callback = data, data = null;
+      request.open(method, url, true);
+      if (mimeType != null && !("accept" in headers)) headers["accept"] = mimeType + ",*/*";
+      if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]);
+      if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType);
+      if (responseType != null) request.responseType = responseType;
+      if (callback != null) xhr.on("error", callback).on("load", function(request) {
+        callback(null, request);
+      });
+      dispatch.beforesend.call(xhr, request);
+      request.send(data == null ? null : data);
+      return xhr;
+    };
+    xhr.abort = function() {
+      request.abort();
+      return xhr;
+    };
+    d3.rebind(xhr, dispatch, "on");
+    return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback));
+  }
+  function d3_xhr_fixCallback(callback) {
+    return callback.length === 1 ? function(error, request) {
+      callback(error == null ? request : null);
+    } : callback;
+  }
+  function d3_xhrHasResponse(request) {
+    var type = request.responseType;
+    return type && type !== "text" ? request.response : request.responseText;
+  }
+  d3.dsv = function(delimiter, mimeType) {
+    var reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
+    function dsv(url, row, callback) {
+      if (arguments.length < 3) callback = row, row = null;
+      var xhr = d3_xhr(url, mimeType, row == null ? response : typedResponse(row), callback);
+      xhr.row = function(_) {
+        return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row;
+      };
+      return xhr;
+    }
+    function response(request) {
+      return dsv.parse(request.responseText);
+    }
+    function typedResponse(f) {
+      return function(request) {
+        return dsv.parse(request.responseText, f);
+      };
+    }
+    dsv.parse = function(text, f) {
+      var o;
+      return dsv.parseRows(text, function(row, i) {
+        if (o) return o(row, i - 1);
+        var a = new Function("d", "return {" + row.map(function(name, i) {
+          return JSON.stringify(name) + ": d[" + i + "]";
+        }).join(",") + "}");
+        o = f ? function(row, i) {
+          return f(a(row), i);
+        } : a;
+      });
+    };
+    dsv.parseRows = function(text, f) {
+      var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol;
+      function token() {
+        if (I >= N) return EOF;
+        if (eol) return eol = false, EOL;
+        var j = I;
+        if (text.charCodeAt(j) === 34) {
+          var i = j;
+          while (i++ < N) {
+            if (text.charCodeAt(i) === 34) {
+              if (text.charCodeAt(i + 1) !== 34) break;
+              ++i;
+            }
+          }
+          I = i + 2;
+          var c = text.charCodeAt(i + 1);
+          if (c === 13) {
+            eol = true;
+            if (text.charCodeAt(i + 2) === 10) ++I;
+          } else if (c === 10) {
+            eol = true;
+          }
+          return text.slice(j + 1, i).replace(/""/g, '"');
+        }
+        while (I < N) {
+          var c = text.charCodeAt(I++), k = 1;
+          if (c === 10) eol = true; else if (c === 13) {
+            eol = true;
+            if (text.charCodeAt(I) === 10) ++I, ++k;
+          } else if (c !== delimiterCode) continue;
+          return text.slice(j, I - k);
+        }
+        return text.slice(j);
+      }
+      while ((t = token()) !== EOF) {
+        var a = [];
+        while (t !== EOL && t !== EOF) {
+          a.push(t);
+          t = token();
+        }
+        if (f && (a = f(a, n++)) == null) continue;
+        rows.push(a);
+      }
+      return rows;
+    };
+    dsv.format = function(rows) {
+      if (Array.isArray(rows[0])) return dsv.formatRows(rows);
+      var fieldSet = new d3_Set(), fields = [];
+      rows.forEach(function(row) {
+        for (var field in row) {
+          if (!fieldSet.has(field)) {
+            fields.push(fieldSet.add(field));
+          }
+        }
+      });
+      return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) {
+        return fields.map(function(field) {
+          return formatValue(row[field]);
+        }).join(delimiter);
+      })).join("\n");
+    };
+    dsv.formatRows = function(rows) {
+      return rows.map(formatRow).join("\n");
+    };
+    function formatRow(row) {
+      return row.map(formatValue).join(delimiter);
+    }
+    function formatValue(text) {
+      return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
+    }
+    return dsv;
+  };
+  d3.csv = d3.dsv(",", "text/csv");
+  d3.tsv = d3.dsv("	", "text/tab-separated-values");
+  var d3_timer_queueHead, d3_timer_queueTail, d3_timer_interval, d3_timer_timeout, d3_timer_frame = this[d3_vendorSymbol(this, "requestAnimationFrame")] || function(callback) {
+    setTimeout(callback, 17);
+  };
+  d3.timer = function() {
+    d3_timer.apply(this, arguments);
+  };
+  function d3_timer(callback, delay, then) {
+    var n = arguments.length;
+    if (n < 2) delay = 0;
+    if (n < 3) then = Date.now();
+    var time = then + delay, timer = {
+      c: callback,
+      t: time,
+      n: null
+    };
+    if (d3_timer_queueTail) d3_timer_queueTail.n = timer; else d3_timer_queueHead = timer;
+    d3_timer_queueTail = timer;
+    if (!d3_timer_interval) {
+      d3_timer_timeout = clearTimeout(d3_timer_timeout);
+      d3_timer_interval = 1;
+      d3_timer_frame(d3_timer_step);
+    }
+    return timer;
+  }
+  function d3_timer_step() {
+    var now = d3_timer_mark(), delay = d3_timer_sweep() - now;
+    if (delay > 24) {
+      if (isFinite(delay)) {
+        clearTimeout(d3_timer_timeout);
+        d3_timer_timeout = setTimeout(d3_timer_step, delay);
+      }
+      d3_timer_interval = 0;
+    } else {
+      d3_timer_interval = 1;
+      d3_timer_frame(d3_timer_step);
+    }
+  }
+  d3.timer.flush = function() {
+    d3_timer_mark();
+    d3_timer_sweep();
+  };
+  function d3_timer_mark() {
+    var now = Date.now(), timer = d3_timer_queueHead;
+    while (timer) {
+      if (now >= timer.t && timer.c(now - timer.t)) timer.c = null;
+      timer = timer.n;
+    }
+    return now;
+  }
+  function d3_timer_sweep() {
+    var t0, t1 = d3_timer_queueHead, time = Infinity;
+    while (t1) {
+      if (t1.c) {
+        if (t1.t < time) time = t1.t;
+        t1 = (t0 = t1).n;
+      } else {
+        t1 = t0 ? t0.n = t1.n : d3_timer_queueHead = t1.n;
+      }
+    }
+    d3_timer_queueTail = t0;
+    return time;
+  }
+  function d3_format_precision(x, p) {
+    return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1);
+  }
+  d3.round = function(x, n) {
+    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
+  };
+  var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);
+  d3.formatPrefix = function(value, precision) {
+    var i = 0;
+    if (value = +value) {
+      if (value < 0) value *= -1;
+      if (precision) value = d3.round(value, d3_format_precision(value, precision));
+      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
+      i = Math.max(-24, Math.min(24, Math.floor((i - 1) / 3) * 3));
+    }
+    return d3_formatPrefixes[8 + i / 3];
+  };
+  function d3_formatPrefix(d, i) {
+    var k = Math.pow(10, abs(8 - i) * 3);
+    return {
+      scale: i > 8 ? function(d) {
+        return d / k;
+      } : function(d) {
+        return d * k;
+      },
+      symbol: d
+    };
+  }
+  function d3_locale_numberFormat(locale) {
+    var locale_decimal = locale.decimal, locale_thousands = locale.thousands, locale_grouping = locale.grouping, locale_currency = locale.currency, formatGroup = locale_grouping && locale_thousands ? function(value, width) {
+      var i = value.length, t = [], j = 0, g = locale_grouping[0], length = 0;
+      while (i > 0 && g > 0) {
+        if (length + g + 1 > width) g = Math.max(1, width - length);
+        t.push(value.substring(i -= g, i + g));
+        if ((length += g + 1) > width) break;
+        g = locale_grouping[j = (j + 1) % locale_grouping.length];
+      }
+      return t.reverse().join(locale_thousands);
+    } : d3_identity;
+    return function(specifier) {
+      var match = d3_format_re.exec(specifier), fill = match[1] || " ", align = match[2] || ">", sign = match[3] || "-", symbol = match[4] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, prefix = "", suffix = "", integer = false, exponent = true;
+      if (precision) precision = +precision.substring(1);
+      if (zfill || fill === "0" && align === "=") {
+        zfill = fill = "0";
+        align = "=";
+      }
+      switch (type) {
+       case "n":
+        comma = true;
+        type = "g";
+        break;
+
+       case "%":
+        scale = 100;
+        suffix = "%";
+        type = "f";
+        break;
+
+       case "p":
+        scale = 100;
+        suffix = "%";
+        type = "r";
+        break;
+
+       case "b":
+       case "o":
+       case "x":
+       case "X":
+        if (symbol === "#") prefix = "0" + type.toLowerCase();
+
+       case "c":
+        exponent = false;
+
+       case "d":
+        integer = true;
+        precision = 0;
+        break;
+
+       case "s":
+        scale = -1;
+        type = "r";
+        break;
+      }
+      if (symbol === "$") prefix = locale_currency[0], suffix = locale_currency[1];
+      if (type == "r" && !precision) type = "g";
+      if (precision != null) {
+        if (type == "g") precision = Math.max(1, Math.min(21, precision)); else if (type == "e" || type == "f") precision = Math.max(0, Math.min(20, precision));
+      }
+      type = d3_format_types.get(type) || d3_format_typeDefault;
+      var zcomma = zfill && comma;
+      return function(value) {
+        var fullSuffix = suffix;
+        if (integer && value % 1) return "";
+        var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, "-") : sign === "-" ? "" : sign;
+        if (scale < 0) {
+          var unit = d3.formatPrefix(value, precision);
+          value = unit.scale(value);
+          fullSuffix = unit.symbol + suffix;
+        } else {
+          value *= scale;
+        }
+        value = type(value, precision);
+        var i = value.lastIndexOf("."), before, after;
+        if (i < 0) {
+          var j = exponent ? value.lastIndexOf("e") : -1;
+          if (j < 0) before = value, after = ""; else before = value.substring(0, j), after = value.substring(j);
+        } else {
+          before = value.substring(0, i);
+          after = locale_decimal + value.substring(i + 1);
+        }
+        if (!zfill && comma) before = formatGroup(before, Infinity);
+        var length = prefix.length + before.length + after.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : "";
+        if (zcomma) before = formatGroup(padding + before, padding.length ? width - after.length : Infinity);
+        negative += prefix;
+        value = before + after;
+        return (align === "<" ? negative + value + padding : align === ">" ? padding + negative + value : align === "^" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + fullSuffix;
+      };
+    };
+  }
+  var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?([$#])?(0)?(\d+)?(,)?(\.-?\d+)?([a-z%])?/i;
+  var d3_format_types = d3.map({
+    b: function(x) {
+      return x.toString(2);
+    },
+    c: function(x) {
+      return String.fromCharCode(x);
+    },
+    o: function(x) {
+      return x.toString(8);
+    },
+    x: function(x) {
+      return x.toString(16);
+    },
+    X: function(x) {
+      return x.toString(16).toUpperCase();
+    },
+    g: function(x, p) {
+      return x.toPrecision(p);
+    },
+    e: function(x, p) {
+      return x.toExponential(p);
+    },
+    f: function(x, p) {
+      return x.toFixed(p);
+    },
+    r: function(x, p) {
+      return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p))));
+    }
+  });
+  function d3_format_typeDefault(x) {
+    return x + "";
+  }
+  var d3_time = d3.time = {}, d3_date = Date;
+  function d3_date_utc() {
+    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
+  }
+  d3_date_utc.prototype = {
+    getDate: function() {
+      return this._.getUTCDate();
+    },
+    getDay: function() {
+      return this._.getUTCDay();
+    },
+    getFullYear: function() {
+      return this._.getUTCFullYear();
+    },
+    getHours: function() {
+      return this._.getUTCHours();
+    },
+    getMilliseconds: function() {
+      return this._.getUTCMilliseconds();
+    },
+    getMinutes: function() {
+      return this._.getUTCMinutes();
+    },
+    getMonth: function() {
+      return this._.getUTCMonth();
+    },
+    getSeconds: function() {
+      return this._.getUTCSeconds();
+    },
+    getTime: function() {
+      return this._.getTime();
+    },
+    getTimezoneOffset: function() {
+      return 0;
+    },
+    valueOf: function() {
+      return this._.valueOf();
+    },
+    setDate: function() {
+      d3_time_prototype.setUTCDate.apply(this._, arguments);
+    },
+    setDay: function() {
+      d3_time_prototype.setUTCDay.apply(this._, arguments);
+    },
+    setFullYear: function() {
+      d3_time_prototype.setUTCFullYear.apply(this._, arguments);
+    },
+    setHours: function() {
+      d3_time_prototype.setUTCHours.apply(this._, arguments);
+    },
+    setMilliseconds: function() {
+      d3_time_prototype.setUTCMilliseconds.apply(this._, arguments);
+    },
+    setMinutes: function() {
+      d3_time_prototype.setUTCMinutes.apply(this._, arguments);
+    },
+    setMonth: function() {
+      d3_time_prototype.setUTCMonth.apply(this._, arguments);
+    },
+    setSeconds: function() {
+      d3_time_prototype.setUTCSeconds.apply(this._, arguments);
+    },
+    setTime: function() {
+      d3_time_prototype.setTime.apply(this._, arguments);
+    }
+  };
+  var d3_time_prototype = Date.prototype;
+  function d3_time_interval(local, step, number) {
+    function round(date) {
+      var d0 = local(date), d1 = offset(d0, 1);
+      return date - d0 < d1 - date ? d0 : d1;
+    }
+    function ceil(date) {
+      step(date = local(new d3_date(date - 1)), 1);
+      return date;
+    }
+    function offset(date, k) {
+      step(date = new d3_date(+date), k);
+      return date;
+    }
+    function range(t0, t1, dt) {
+      var time = ceil(t0), times = [];
+      if (dt > 1) {
+        while (time < t1) {
+          if (!(number(time) % dt)) times.push(new Date(+time));
+          step(time, 1);
+        }
+      } else {
+        while (time < t1) times.push(new Date(+time)), step(time, 1);
+      }
+      return times;
+    }
+    function range_utc(t0, t1, dt) {
+      try {
+        d3_date = d3_date_utc;
+        var utc = new d3_date_utc();
+        utc._ = t0;
+        return range(utc, t1, dt);
+      } finally {
+        d3_date = Date;
+      }
+    }
+    local.floor = local;
+    local.round = round;
+    local.ceil = ceil;
+    local.offset = offset;
+    local.range = range;
+    var utc = local.utc = d3_time_interval_utc(local);
+    utc.floor = utc;
+    utc.round = d3_time_interval_utc(round);
+    utc.ceil = d3_time_interval_utc(ceil);
+    utc.offset = d3_time_interval_utc(offset);
+    utc.range = range_utc;
+    return local;
+  }
+  function d3_time_interval_utc(method) {
+    return function(date, k) {
+      try {
+        d3_date = d3_date_utc;
+        var utc = new d3_date_utc();
+        utc._ = date;
+        return method(utc, k)._;
+      } finally {
+        d3_date = Date;
+      }
+    };
+  }
+  d3_time.year = d3_time_interval(function(date) {
+    date = d3_time.day(date);
+    date.setMonth(0, 1);
+    return date;
+  }, function(date, offset) {
+    date.setFullYear(date.getFullYear() + offset);
+  }, function(date) {
+    return date.getFullYear();
+  });
+  d3_time.years = d3_time.year.range;
+  d3_time.years.utc = d3_time.year.utc.range;
+  d3_time.day = d3_time_interval(function(date) {
+    var day = new d3_date(2e3, 0);
+    day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
+    return day;
+  }, function(date, offset) {
+    date.setDate(date.getDate() + offset);
+  }, function(date) {
+    return date.getDate() - 1;
+  });
+  d3_time.days = d3_time.day.range;
+  d3_time.days.utc = d3_time.day.utc.range;
+  d3_time.dayOfYear = function(date) {
+    var year = d3_time.year(date);
+    return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);
+  };
+  [ "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday" ].forEach(function(day, i) {
+    i = 7 - i;
+    var interval = d3_time[day] = d3_time_interval(function(date) {
+      (date = d3_time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);
+      return date;
+    }, function(date, offset) {
+      date.setDate(date.getDate() + Math.floor(offset) * 7);
+    }, function(date) {
+      var day = d3_time.year(date).getDay();
+      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);
+    });
+    d3_time[day + "s"] = interval.range;
+    d3_time[day + "s"].utc = interval.utc.range;
+    d3_time[day + "OfYear"] = function(date) {
+      var day = d3_time.year(date).getDay();
+      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7);
+    };
+  });
+  d3_time.week = d3_time.sunday;
+  d3_time.weeks = d3_time.sunday.range;
+  d3_time.weeks.utc = d3_time.sunday.utc.range;
+  d3_time.weekOfYear = d3_time.sundayOfYear;
+  function d3_locale_timeFormat(locale) {
+    var locale_dateTime = locale.dateTime, locale_date = locale.date, locale_time = locale.time, locale_periods = locale.periods, locale_days = locale.days, locale_shortDays = locale.shortDays, locale_months = locale.months, locale_shortMonths = locale.shortMonths;
+    function d3_time_format(template) {
+      var n = template.length;
+      function format(date) {
+        var string = [], i = -1, j = 0, c, p, f;
+        while (++i < n) {
+          if (template.charCodeAt(i) === 37) {
+            string.push(template.slice(j, i));
+            if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i);
+            if (f = d3_time_formats[c]) c = f(date, p == null ? c === "e" ? " " : "0" : p);
+            string.push(c);
+            j = i + 1;
+          }
+        }
+        string.push(template.slice(j, i));
+        return string.join("");
+      }
+      format.parse = function(string) {
+        var d = {
+          y: 1900,
+          m: 0,
+          d: 1,
+          H: 0,
+          M: 0,
+          S: 0,
+          L: 0,
+          Z: null
+        }, i = d3_time_parse(d, template, string, 0);
+        if (i != string.length) return null;
+        if ("p" in d) d.H = d.H % 12 + d.p * 12;
+        var localZ = d.Z != null && d3_date !== d3_date_utc, date = new (localZ ? d3_date_utc : d3_date)();
+        if ("j" in d) date.setFullYear(d.y, 0, d.j); else if ("W" in d || "U" in d) {
+          if (!("w" in d)) d.w = "W" in d ? 1 : 0;
+          date.setFullYear(d.y, 0, 1);
+          date.setFullYear(d.y, 0, "W" in d ? (d.w + 6) % 7 + d.W * 7 - (date.getDay() + 5) % 7 : d.w + d.U * 7 - (date.getDay() + 6) % 7);
+        } else date.setFullYear(d.y, d.m, d.d);
+        date.setHours(d.H + (d.Z / 100 | 0), d.M + d.Z % 100, d.S, d.L);
+        return localZ ? date._ : date;
+      };
+      format.toString = function() {
+        return template;
+      };
+      return format;
+    }
+    function d3_time_parse(date, template, string, j) {
+      var c, p, t, i = 0, n = template.length, m = string.length;
+      while (i < n) {
+        if (j >= m) return -1;
+        c = template.charCodeAt(i++);
+        if (c === 37) {
+          t = template.charAt(i++);
+          p = d3_time_parsers[t in d3_time_formatPads ? template.charAt(i++) : t];
+          if (!p || (j = p(date, string, j)) < 0) return -1;
+        } else if (c != string.charCodeAt(j++)) {
+          return -1;
+        }
+      }
+      return j;
+    }
+    d3_time_format.utc = function(template) {
+      var local = d3_time_format(template);
+      function format(date) {
+        try {
+          d3_date = d3_date_utc;
+          var utc = new d3_date();
+          utc._ = date;
+          return local(utc);
+        } finally {
+          d3_date = Date;
+        }
+      }
+      format.parse = function(string) {
+        try {
+          d3_date = d3_date_utc;
+          var date = local.parse(string);
+          return date && date._;
+        } finally {
+          d3_date = Date;
+        }
+      };
+      format.toString = local.toString;
+      return format;
+    };
+    d3_time_format.multi = d3_time_format.utc.multi = d3_time_formatMulti;
+    var d3_time_periodLookup = d3.map(), d3_time_dayRe = d3_time_formatRe(locale_days), d3_time_dayLookup = d3_time_formatLookup(locale_days), d3_time_dayAbbrevRe = d3_time_formatRe(locale_shortDays), d3_time_dayAbbrevLookup = d3_time_formatLookup(locale_shortDays), d3_time_monthRe = d3_time_formatRe(locale_months), d3_time_monthLookup = d3_time_formatLookup(locale_months), d3_time_monthAbbrevRe = d3_time_formatRe(locale_shortMonths), d3_time_monthAbbrevLookup = d3_time_formatLookup(locale_shortMonths);
+    locale_periods.forEach(function(p, i) {
+      d3_time_periodLookup.set(p.toLowerCase(), i);
+    });
+    var d3_time_formats = {
+      a: function(d) {
+        return locale_shortDays[d.getDay()];
+      },
+      A: function(d) {
+        return locale_days[d.getDay()];
+      },
+      b: function(d) {
+        return locale_shortMonths[d.getMonth()];
+      },
+      B: function(d) {
+        return locale_months[d.getMonth()];
+      },
+      c: d3_time_format(locale_dateTime),
+      d: function(d, p) {
+        return d3_time_formatPad(d.getDate(), p, 2);
+      },
+      e: function(d, p) {
+        return d3_time_formatPad(d.getDate(), p, 2);
+      },
+      H: function(d, p) {
+        return d3_time_formatPad(d.getHours(), p, 2);
+      },
+      I: function(d, p) {
+        return d3_time_formatPad(d.getHours() % 12 || 12, p, 2);
+      },
+      j: function(d, p) {
+        return d3_time_formatPad(1 + d3_time.dayOfYear(d), p, 3);
+      },
+      L: function(d, p) {
+        return d3_time_formatPad(d.getMilliseconds(), p, 3);
+      },
+      m: function(d, p) {
+        return d3_time_formatPad(d.getMonth() + 1, p, 2);
+      },
+      M: function(d, p) {
+        return d3_time_formatPad(d.getMinutes(), p, 2);
+      },
+      p: function(d) {
+        return locale_periods[+(d.getHours() >= 12)];
+      },
+      S: function(d, p) {
+        return d3_time_formatPad(d.getSeconds(), p, 2);
+      },
+      U: function(d, p) {
+        return d3_time_formatPad(d3_time.sundayOfYear(d), p, 2);
+      },
+      w: function(d) {
+        return d.getDay();
+      },
+      W: function(d, p) {
+        return d3_time_formatPad(d3_time.mondayOfYear(d), p, 2);
+      },
+      x: d3_time_format(locale_date),
+      X: d3_time_format(locale_time),
+      y: function(d, p) {
+        return d3_time_formatPad(d.getFullYear() % 100, p, 2);
+      },
+      Y: function(d, p) {
+        return d3_time_formatPad(d.getFullYear() % 1e4, p, 4);
+      },
+      Z: d3_time_zone,
+      "%": function() {
+        return "%";
+      }
+    };
+    var d3_time_parsers = {
+      a: d3_time_parseWeekdayAbbrev,
+      A: d3_time_parseWeekday,
+      b: d3_time_parseMonthAbbrev,
+      B: d3_time_parseMonth,
+      c: d3_time_parseLocaleFull,
+      d: d3_time_parseDay,
+      e: d3_time_parseDay,
+      H: d3_time_parseHour24,
+      I: d3_time_parseHour24,
+      j: d3_time_parseDayOfYear,
+      L: d3_time_parseMilliseconds,
+      m: d3_time_parseMonthNumber,
+      M: d3_time_parseMinutes,
+      p: d3_time_parseAmPm,
+      S: d3_time_parseSeconds,
+      U: d3_time_parseWeekNumberSunday,
+      w: d3_time_parseWeekdayNumber,
+      W: d3_time_parseWeekNumberMonday,
+      x: d3_time_parseLocaleDate,
+      X: d3_time_parseLocaleTime,
+      y: d3_time_parseYear,
+      Y: d3_time_parseFullYear,
+      Z: d3_time_parseZone,
+      "%": d3_time_parseLiteralPercent
+    };
+    function d3_time_parseWeekdayAbbrev(date, string, i) {
+      d3_time_dayAbbrevRe.lastIndex = 0;
+      var n = d3_time_dayAbbrevRe.exec(string.slice(i));
+      return n ? (date.w = d3_time_dayAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseWeekday(date, string, i) {
+      d3_time_dayRe.lastIndex = 0;
+      var n = d3_time_dayRe.exec(string.slice(i));
+      return n ? (date.w = d3_time_dayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseMonthAbbrev(date, string, i) {
+      d3_time_monthAbbrevRe.lastIndex = 0;
+      var n = d3_time_monthAbbrevRe.exec(string.slice(i));
+      return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseMonth(date, string, i) {
+      d3_time_monthRe.lastIndex = 0;
+      var n = d3_time_monthRe.exec(string.slice(i));
+      return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseLocaleFull(date, string, i) {
+      return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
+    }
+    function d3_time_parseLocaleDate(date, string, i) {
+      return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
+    }
+    function d3_time_parseLocaleTime(date, string, i) {
+      return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
+    }
+    function d3_time_parseAmPm(date, string, i) {
+      var n = d3_time_periodLookup.get(string.slice(i, i += 2).toLowerCase());
+      return n == null ? -1 : (date.p = n, i);
+    }
+    return d3_time_format;
+  }
+  var d3_time_formatPads = {
+    "-": "",
+    _: " ",
+    "0": "0"
+  }, d3_time_numberRe = /^\s*\d+/, d3_time_percentRe = /^%/;
+  function d3_time_formatPad(value, fill, width) {
+    var sign = value < 0 ? "-" : "", string = (sign ? -value : value) + "", length = string.length;
+    return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
+  }
+  function d3_time_formatRe(names) {
+    return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");
+  }
+  function d3_time_formatLookup(names) {
+    var map = new d3_Map(), i = -1, n = names.length;
+    while (++i < n) map.set(names[i].toLowerCase(), i);
+    return map;
+  }
+  function d3_time_parseWeekdayNumber(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 1));
+    return n ? (date.w = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseWeekNumberSunday(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i));
+    return n ? (date.U = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseWeekNumberMonday(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i));
+    return n ? (date.W = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseFullYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 4));
+    return n ? (date.y = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1;
+  }
+  function d3_time_parseZone(date, string, i) {
+    return /^[+-]\d{4}$/.test(string = string.slice(i, i + 5)) ? (date.Z = -string, 
+    i + 5) : -1;
+  }
+  function d3_time_expandYear(d) {
+    return d + (d > 68 ? 1900 : 2e3);
+  }
+  function d3_time_parseMonthNumber(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.m = n[0] - 1, i + n[0].length) : -1;
+  }
+  function d3_time_parseDay(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.d = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseDayOfYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
+    return n ? (date.j = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseHour24(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.H = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseMinutes(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.M = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseSeconds(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.S = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseMilliseconds(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
+    return n ? (date.L = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_zone(d) {
+    var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = abs(z) / 60 | 0, zm = abs(z) % 60;
+    return zs + d3_time_formatPad(zh, "0", 2) + d3_time_formatPad(zm, "0", 2);
+  }
+  function d3_time_parseLiteralPercent(date, string, i) {
+    d3_time_percentRe.lastIndex = 0;
+    var n = d3_time_percentRe.exec(string.slice(i, i + 1));
+    return n ? i + n[0].length : -1;
+  }
+  function d3_time_formatMulti(formats) {
+    var n = formats.length, i = -1;
+    while (++i < n) formats[i][0] = this(formats[i][0]);
+    return function(date) {
+      var i = 0, f = formats[i];
+      while (!f[1](date)) f = formats[++i];
+      return f[0](date);
+    };
+  }
+  d3.locale = function(locale) {
+    return {
+      numberFormat: d3_locale_numberFormat(locale),
+      timeFormat: d3_locale_timeFormat(locale)
+    };
+  };
+  var d3_locale_enUS = d3.locale({
+    decimal: ".",
+    thousands: ",",
+    grouping: [ 3 ],
+    currency: [ "$", "" ],
+    dateTime: "%a %b %e %X %Y",
+    date: "%m/%d/%Y",
+    time: "%H:%M:%S",
+    periods: [ "AM", "PM" ],
+    days: [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ],
+    shortDays: [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ],
+    months: [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ],
+    shortMonths: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]
+  });
+  d3.format = d3_locale_enUS.numberFormat;
+  d3.geo = {};
+  function d3_adder() {}
+  d3_adder.prototype = {
+    s: 0,
+    t: 0,
+    add: function(y) {
+      d3_adderSum(y, this.t, d3_adderTemp);
+      d3_adderSum(d3_adderTemp.s, this.s, this);
+      if (this.s) this.t += d3_adderTemp.t; else this.s = d3_adderTemp.t;
+    },
+    reset: function() {
+      this.s = this.t = 0;
+    },
+    valueOf: function() {
+      return this.s;
+    }
+  };
+  var d3_adderTemp = new d3_adder();
+  function d3_adderSum(a, b, o) {
+    var x = o.s = a + b, bv = x - a, av = x - bv;
+    o.t = a - av + (b - bv);
+  }
+  d3.geo.stream = function(object, listener) {
+    if (object && d3_geo_streamObjectType.hasOwnProperty(object.type)) {
+      d3_geo_streamObjectType[object.type](object, listener);
+    } else {
+      d3_geo_streamGeometry(object, listener);
+    }
+  };
+  function d3_geo_streamGeometry(geometry, listener) {
+    if (geometry && d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) {
+      d3_geo_streamGeometryType[geometry.type](geometry, listener);
+    }
+  }
+  var d3_geo_streamObjectType = {
+    Feature: function(feature, listener) {
+      d3_geo_streamGeometry(feature.geometry, listener);
+    },
+    FeatureCollection: function(object, listener) {
+      var features = object.features, i = -1, n = features.length;
+      while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener);
+    }
+  };
+  var d3_geo_streamGeometryType = {
+    Sphere: function(object, listener) {
+      listener.sphere();
+    },
+    Point: function(object, listener) {
+      object = object.coordinates;
+      listener.point(object[0], object[1], object[2]);
+    },
+    MultiPoint: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) object = coordinates[i], listener.point(object[0], object[1], object[2]);
+    },
+    LineString: function(object, listener) {
+      d3_geo_streamLine(object.coordinates, listener, 0);
+    },
+    MultiLineString: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0);
+    },
+    Polygon: function(object, listener) {
+      d3_geo_streamPolygon(object.coordinates, listener);
+    },
+    MultiPolygon: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) d3_geo_streamPolygon(coordinates[i], listener);
+    },
+    GeometryCollection: function(object, listener) {
+      var geometries = object.geometries, i = -1, n = geometries.length;
+      while (++i < n) d3_geo_streamGeometry(geometries[i], listener);
+    }
+  };
+  function d3_geo_streamLine(coordinates, listener, closed) {
+    var i = -1, n = coordinates.length - closed, coordinate;
+    listener.lineStart();
+    while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1], coordinate[2]);
+    listener.lineEnd();
+  }
+  function d3_geo_streamPolygon(coordinates, listener) {
+    var i = -1, n = coordinates.length;
+    listener.polygonStart();
+    while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1);
+    listener.polygonEnd();
+  }
+  d3.geo.area = function(object) {
+    d3_geo_areaSum = 0;
+    d3.geo.stream(object, d3_geo_area);
+    return d3_geo_areaSum;
+  };
+  var d3_geo_areaSum, d3_geo_areaRingSum = new d3_adder();
+  var d3_geo_area = {
+    sphere: function() {
+      d3_geo_areaSum += 4 * π;
+    },
+    point: d3_noop,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: function() {
+      d3_geo_areaRingSum.reset();
+      d3_geo_area.lineStart = d3_geo_areaRingStart;
+    },
+    polygonEnd: function() {
+      var area = 2 * d3_geo_areaRingSum;
+      d3_geo_areaSum += area < 0 ? 4 * π + area : area;
+      d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop;
+    }
+  };
+  function d3_geo_areaRingStart() {
+    var λ00, φ00, λ0, cosφ0, sinφ0;
+    d3_geo_area.point = function(λ, φ) {
+      d3_geo_area.point = nextPoint;
+      λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4), 
+      sinφ0 = Math.sin(φ);
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      φ = φ * d3_radians / 2 + π / 4;
+      var dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u = cosφ0 * cosφ + k * Math.cos(adλ), v = k * sdλ * Math.sin(adλ);
+      d3_geo_areaRingSum.add(Math.atan2(v, u));
+      λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;
+    }
+    d3_geo_area.lineEnd = function() {
+      nextPoint(λ00, φ00);
+    };
+  }
+  function d3_geo_cartesian(spherical) {
+    var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ);
+    return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ];
+  }
+  function d3_geo_cartesianDot(a, b) {
+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+  }
+  function d3_geo_cartesianCross(a, b) {
+    return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ];
+  }
+  function d3_geo_cartesianAdd(a, b) {
+    a[0] += b[0];
+    a[1] += b[1];
+    a[2] += b[2];
+  }
+  function d3_geo_cartesianScale(vector, k) {
+    return [ vector[0] * k, vector[1] * k, vector[2] * k ];
+  }
+  function d3_geo_cartesianNormalize(d) {
+    var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
+    d[0] /= l;
+    d[1] /= l;
+    d[2] /= l;
+  }
+  function d3_geo_spherical(cartesian) {
+    return [ Math.atan2(cartesian[1], cartesian[0]), d3_asin(cartesian[2]) ];
+  }
+  function d3_geo_sphericalEqual(a, b) {
+    return abs(a[0] - b[0]) < ε && abs(a[1] - b[1]) < ε;
+  }
+  d3.geo.bounds = function() {
+    var λ0, φ0, λ1, φ1, λ_, λ__, φ__, p0, dλSum, ranges, range;
+    var bound = {
+      point: point,
+      lineStart: lineStart,
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        bound.point = ringPoint;
+        bound.lineStart = ringStart;
+        bound.lineEnd = ringEnd;
+        dλSum = 0;
+        d3_geo_area.polygonStart();
+      },
+      polygonEnd: function() {
+        d3_geo_area.polygonEnd();
+        bound.point = point;
+        bound.lineStart = lineStart;
+        bound.lineEnd = lineEnd;
+        if (d3_geo_areaRingSum < 0) λ0 = -(λ1 = 180), φ0 = -(φ1 = 90); else if (dλSum > ε) φ1 = 90; else if (dλSum < -ε) φ0 = -90;
+        range[0] = λ0, range[1] = λ1;
+      }
+    };
+    function point(λ, φ) {
+      ranges.push(range = [ λ0 = λ, λ1 = λ ]);
+      if (φ < φ0) φ0 = φ;
+      if (φ > φ1) φ1 = φ;
+    }
+    function linePoint(λ, φ) {
+      var p = d3_geo_cartesian([ λ * d3_radians, φ * d3_radians ]);
+      if (p0) {
+        var normal = d3_geo_cartesianCross(p0, p), equatorial = [ normal[1], -normal[0], 0 ], inflection = d3_geo_cartesianCross(equatorial, normal);
+        d3_geo_cartesianNormalize(inflection);
+        inflection = d3_geo_spherical(inflection);
+        var dλ = λ - λ_, s = dλ > 0 ? 1 : -1, λi = inflection[0] * d3_degrees * s, antimeridian = abs(dλ) > 180;
+        if (antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
+          var φi = inflection[1] * d3_degrees;
+          if (φi > φ1) φ1 = φi;
+        } else if (λi = (λi + 360) % 360 - 180, antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
+          var φi = -inflection[1] * d3_degrees;
+          if (φi < φ0) φ0 = φi;
+        } else {
+          if (φ < φ0) φ0 = φ;
+          if (φ > φ1) φ1 = φ;
+        }
+        if (antimeridian) {
+          if (λ < λ_) {
+            if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
+          } else {
+            if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
+          }
+        } else {
+          if (λ1 >= λ0) {
+            if (λ < λ0) λ0 = λ;
+            if (λ > λ1) λ1 = λ;
+          } else {
+            if (λ > λ_) {
+              if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
+            } else {
+              if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
+            }
+          }
+        }
+      } else {
+        point(λ, φ);
+      }
+      p0 = p, λ_ = λ;
+    }
+    function lineStart() {
+      bound.point = linePoint;
+    }
+    function lineEnd() {
+      range[0] = λ0, range[1] = λ1;
+      bound.point = point;
+      p0 = null;
+    }
+    function ringPoint(λ, φ) {
+      if (p0) {
+        var dλ = λ - λ_;
+        dλSum += abs(dλ) > 180 ? dλ + (dλ > 0 ? 360 : -360) : dλ;
+      } else λ__ = λ, φ__ = φ;
+      d3_geo_area.point(λ, φ);
+      linePoint(λ, φ);
+    }
+    function ringStart() {
+      d3_geo_area.lineStart();
+    }
+    function ringEnd() {
+      ringPoint(λ__, φ__);
+      d3_geo_area.lineEnd();
+      if (abs(dλSum) > ε) λ0 = -(λ1 = 180);
+      range[0] = λ0, range[1] = λ1;
+      p0 = null;
+    }
+    function angle(λ0, λ1) {
+      return (λ1 -= λ0) < 0 ? λ1 + 360 : λ1;
+    }
+    function compareRanges(a, b) {
+      return a[0] - b[0];
+    }
+    function withinRange(x, range) {
+      return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
+    }
+    return function(feature) {
+      φ1 = λ1 = -(λ0 = φ0 = Infinity);
+      ranges = [];
+      d3.geo.stream(feature, bound);
+      var n = ranges.length;
+      if (n) {
+        ranges.sort(compareRanges);
+        for (var i = 1, a = ranges[0], b, merged = [ a ]; i < n; ++i) {
+          b = ranges[i];
+          if (withinRange(b[0], a) || withinRange(b[1], a)) {
+            if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
+            if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
+          } else {
+            merged.push(a = b);
+          }
+        }
+        var best = -Infinity, dλ;
+        for (var n = merged.length - 1, i = 0, a = merged[n], b; i <= n; a = b, ++i) {
+          b = merged[i];
+          if ((dλ = angle(a[1], b[0])) > best) best = dλ, λ0 = b[0], λ1 = a[1];
+        }
+      }
+      ranges = range = null;
+      return λ0 === Infinity || φ0 === Infinity ? [ [ NaN, NaN ], [ NaN, NaN ] ] : [ [ λ0, φ0 ], [ λ1, φ1 ] ];
+    };
+  }();
+  d3.geo.centroid = function(object) {
+    d3_geo_centroidW0 = d3_geo_centroidW1 = d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
+    d3.geo.stream(object, d3_geo_centroid);
+    var x = d3_geo_centroidX2, y = d3_geo_centroidY2, z = d3_geo_centroidZ2, m = x * x + y * y + z * z;
+    if (m < ε2) {
+      x = d3_geo_centroidX1, y = d3_geo_centroidY1, z = d3_geo_centroidZ1;
+      if (d3_geo_centroidW1 < ε) x = d3_geo_centroidX0, y = d3_geo_centroidY0, z = d3_geo_centroidZ0;
+      m = x * x + y * y + z * z;
+      if (m < ε2) return [ NaN, NaN ];
+    }
+    return [ Math.atan2(y, x) * d3_degrees, d3_asin(z / Math.sqrt(m)) * d3_degrees ];
+  };
+  var d3_geo_centroidW0, d3_geo_centroidW1, d3_geo_centroidX0, d3_geo_centroidY0, d3_geo_centroidZ0, d3_geo_centroidX1, d3_geo_centroidY1, d3_geo_centroidZ1, d3_geo_centroidX2, d3_geo_centroidY2, d3_geo_centroidZ2;
+  var d3_geo_centroid = {
+    sphere: d3_noop,
+    point: d3_geo_centroidPoint,
+    lineStart: d3_geo_centroidLineStart,
+    lineEnd: d3_geo_centroidLineEnd,
+    polygonStart: function() {
+      d3_geo_centroid.lineStart = d3_geo_centroidRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_centroid.lineStart = d3_geo_centroidLineStart;
+    }
+  };
+  function d3_geo_centroidPoint(λ, φ) {
+    λ *= d3_radians;
+    var cosφ = Math.cos(φ *= d3_radians);
+    d3_geo_centroidPointXYZ(cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ));
+  }
+  function d3_geo_centroidPointXYZ(x, y, z) {
+    ++d3_geo_centroidW0;
+    d3_geo_centroidX0 += (x - d3_geo_centroidX0) / d3_geo_centroidW0;
+    d3_geo_centroidY0 += (y - d3_geo_centroidY0) / d3_geo_centroidW0;
+    d3_geo_centroidZ0 += (z - d3_geo_centroidZ0) / d3_geo_centroidW0;
+  }
+  function d3_geo_centroidLineStart() {
+    var x0, y0, z0;
+    d3_geo_centroid.point = function(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians);
+      x0 = cosφ * Math.cos(λ);
+      y0 = cosφ * Math.sin(λ);
+      z0 = Math.sin(φ);
+      d3_geo_centroid.point = nextPoint;
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
+      d3_geo_centroidW1 += w;
+      d3_geo_centroidX1 += w * (x0 + (x0 = x));
+      d3_geo_centroidY1 += w * (y0 + (y0 = y));
+      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    }
+  }
+  function d3_geo_centroidLineEnd() {
+    d3_geo_centroid.point = d3_geo_centroidPoint;
+  }
+  function d3_geo_centroidRingStart() {
+    var λ00, φ00, x0, y0, z0;
+    d3_geo_centroid.point = function(λ, φ) {
+      λ00 = λ, φ00 = φ;
+      d3_geo_centroid.point = nextPoint;
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians);
+      x0 = cosφ * Math.cos(λ);
+      y0 = cosφ * Math.sin(λ);
+      z0 = Math.sin(φ);
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    };
+    d3_geo_centroid.lineEnd = function() {
+      nextPoint(λ00, φ00);
+      d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd;
+      d3_geo_centroid.point = d3_geo_centroidPoint;
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), cx = y0 * z - z0 * y, cy = z0 * x - x0 * z, cz = x0 * y - y0 * x, m = Math.sqrt(cx * cx + cy * cy + cz * cz), u = x0 * x + y0 * y + z0 * z, v = m && -d3_acos(u) / m, w = Math.atan2(m, u);
+      d3_geo_centroidX2 += v * cx;
+      d3_geo_centroidY2 += v * cy;
+      d3_geo_centroidZ2 += v * cz;
+      d3_geo_centroidW1 += w;
+      d3_geo_centroidX1 += w * (x0 + (x0 = x));
+      d3_geo_centroidY1 += w * (y0 + (y0 = y));
+      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    }
+  }
+  function d3_geo_compose(a, b) {
+    function compose(x, y) {
+      return x = a(x, y), b(x[0], x[1]);
+    }
+    if (a.invert && b.invert) compose.invert = function(x, y) {
+      return x = b.invert(x, y), x && a.invert(x[0], x[1]);
+    };
+    return compose;
+  }
+  function d3_true() {
+    return true;
+  }
+  function d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener) {
+    var subject = [], clip = [];
+    segments.forEach(function(segment) {
+      if ((n = segment.length - 1) <= 0) return;
+      var n, p0 = segment[0], p1 = segment[n];
+      if (d3_geo_sphericalEqual(p0, p1)) {
+        listener.lineStart();
+        for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]);
+        listener.lineEnd();
+        return;
+      }
+      var a = new d3_geo_clipPolygonIntersection(p0, segment, null, true), b = new d3_geo_clipPolygonIntersection(p0, null, a, false);
+      a.o = b;
+      subject.push(a);
+      clip.push(b);
+      a = new d3_geo_clipPolygonIntersection(p1, segment, null, false);
+      b = new d3_geo_clipPolygonIntersection(p1, null, a, true);
+      a.o = b;
+      subject.push(a);
+      clip.push(b);
+    });
+    clip.sort(compare);
+    d3_geo_clipPolygonLinkCircular(subject);
+    d3_geo_clipPolygonLinkCircular(clip);
+    if (!subject.length) return;
+    for (var i = 0, entry = clipStartInside, n = clip.length; i < n; ++i) {
+      clip[i].e = entry = !entry;
+    }
+    var start = subject[0], points, point;
+    while (1) {
+      var current = start, isSubject = true;
+      while (current.v) if ((current = current.n) === start) return;
+      points = current.z;
+      listener.lineStart();
+      do {
+        current.v = current.o.v = true;
+        if (current.e) {
+          if (isSubject) {
+            for (var i = 0, n = points.length; i < n; ++i) listener.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.x, current.n.x, 1, listener);
+          }
+          current = current.n;
+        } else {
+          if (isSubject) {
+            points = current.p.z;
+            for (var i = points.length - 1; i >= 0; --i) listener.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.x, current.p.x, -1, listener);
+          }
+          current = current.p;
+        }
+        current = current.o;
+        points = current.z;
+        isSubject = !isSubject;
+      } while (!current.v);
+      listener.lineEnd();
+    }
+  }
+  function d3_geo_clipPolygonLinkCircular(array) {
+    if (!(n = array.length)) return;
+    var n, i = 0, a = array[0], b;
+    while (++i < n) {
+      a.n = b = array[i];
+      b.p = a;
+      a = b;
+    }
+    a.n = b = array[0];
+    b.p = a;
+  }
+  function d3_geo_clipPolygonIntersection(point, points, other, entry) {
+    this.x = point;
+    this.z = points;
+    this.o = other;
+    this.e = entry;
+    this.v = false;
+    this.n = this.p = null;
+  }
+  function d3_geo_clip(pointVisible, clipLine, interpolate, clipStart) {
+    return function(rotate, listener) {
+      var line = clipLine(listener), rotatedClipStart = rotate.invert(clipStart[0], clipStart[1]);
+      var clip = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          clip.point = pointRing;
+          clip.lineStart = ringStart;
+          clip.lineEnd = ringEnd;
+          segments = [];
+          polygon = [];
+        },
+        polygonEnd: function() {
+          clip.point = point;
+          clip.lineStart = lineStart;
+          clip.lineEnd = lineEnd;
+          segments = d3.merge(segments);
+          var clipStartInside = d3_geo_pointInPolygon(rotatedClipStart, polygon);
+          if (segments.length) {
+            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
+            d3_geo_clipPolygon(segments, d3_geo_clipSort, clipStartInside, interpolate, listener);
+          } else if (clipStartInside) {
+            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
+            listener.lineStart();
+            interpolate(null, null, 1, listener);
+            listener.lineEnd();
+          }
+          if (polygonStarted) listener.polygonEnd(), polygonStarted = false;
+          segments = polygon = null;
+        },
+        sphere: function() {
+          listener.polygonStart();
+          listener.lineStart();
+          interpolate(null, null, 1, listener);
+          listener.lineEnd();
+          listener.polygonEnd();
+        }
+      };
+      function point(λ, φ) {
+        var point = rotate(λ, φ);
+        if (pointVisible(λ = point[0], φ = point[1])) listener.point(λ, φ);
+      }
+      function pointLine(λ, φ) {
+        var point = rotate(λ, φ);
+        line.point(point[0], point[1]);
+      }
+      function lineStart() {
+        clip.point = pointLine;
+        line.lineStart();
+      }
+      function lineEnd() {
+        clip.point = point;
+        line.lineEnd();
+      }
+      var segments;
+      var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), polygonStarted = false, polygon, ring;
+      function pointRing(λ, φ) {
+        ring.push([ λ, φ ]);
+        var point = rotate(λ, φ);
+        ringListener.point(point[0], point[1]);
+      }
+      function ringStart() {
+        ringListener.lineStart();
+        ring = [];
+      }
+      function ringEnd() {
+        pointRing(ring[0][0], ring[0][1]);
+        ringListener.lineEnd();
+        var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length;
+        ring.pop();
+        polygon.push(ring);
+        ring = null;
+        if (!n) return;
+        if (clean & 1) {
+          segment = ringSegments[0];
+          var n = segment.length - 1, i = -1, point;
+          if (n > 0) {
+            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
+            listener.lineStart();
+            while (++i < n) listener.point((point = segment[i])[0], point[1]);
+            listener.lineEnd();
+          }
+          return;
+        }
+        if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
+        segments.push(ringSegments.filter(d3_geo_clipSegmentLength1));
+      }
+      return clip;
+    };
+  }
+  function d3_geo_clipSegmentLength1(segment) {
+    return segment.length > 1;
+  }
+  function d3_geo_clipBufferListener() {
+    var lines = [], line;
+    return {
+      lineStart: function() {
+        lines.push(line = []);
+      },
+      point: function(λ, φ) {
+        line.push([ λ, φ ]);
+      },
+      lineEnd: d3_noop,
+      buffer: function() {
+        var buffer = lines;
+        lines = [];
+        line = null;
+        return buffer;
+      },
+      rejoin: function() {
+        if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
+      }
+    };
+  }
+  function d3_geo_clipSort(a, b) {
+    return ((a = a.x)[0] < 0 ? a[1] - halfπ - ε : halfπ - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfπ - ε : halfπ - b[1]);
+  }
+  var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate, [ -π, -π / 2 ]);
+  function d3_geo_clipAntimeridianLine(listener) {
+    var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean;
+    return {
+      lineStart: function() {
+        listener.lineStart();
+        clean = 1;
+      },
+      point: function(λ1, φ1) {
+        var sλ1 = λ1 > 0 ? π : -π, dλ = abs(λ1 - λ0);
+        if (abs(dλ - π) < ε) {
+          listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? halfπ : -halfπ);
+          listener.point(sλ0, φ0);
+          listener.lineEnd();
+          listener.lineStart();
+          listener.point(sλ1, φ0);
+          listener.point(λ1, φ0);
+          clean = 0;
+        } else if (sλ0 !== sλ1 && dλ >= π) {
+          if (abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε;
+          if (abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε;
+          φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1);
+          listener.point(sλ0, φ0);
+          listener.lineEnd();
+          listener.lineStart();
+          listener.point(sλ1, φ0);
+          clean = 0;
+        }
+        listener.point(λ0 = λ1, φ0 = φ1);
+        sλ0 = sλ1;
+      },
+      lineEnd: function() {
+        listener.lineEnd();
+        λ0 = φ0 = NaN;
+      },
+      clean: function() {
+        return 2 - clean;
+      }
+    };
+  }
+  function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) {
+    var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
+    return abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
+  }
+  function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) {
+    var φ;
+    if (from == null) {
+      φ = direction * halfπ;
+      listener.point(-π, φ);
+      listener.point(0, φ);
+      listener.point(π, φ);
+      listener.point(π, 0);
+      listener.point(π, -φ);
+      listener.point(0, -φ);
+      listener.point(-π, -φ);
+      listener.point(-π, 0);
+      listener.point(-π, φ);
+    } else if (abs(from[0] - to[0]) > ε) {
+      var s = from[0] < to[0] ? π : -π;
+      φ = direction * s / 2;
+      listener.point(-s, φ);
+      listener.point(0, φ);
+      listener.point(s, φ);
+    } else {
+      listener.point(to[0], to[1]);
+    }
+  }
+  function d3_geo_pointInPolygon(point, polygon) {
+    var meridian = point[0], parallel = point[1], meridianNormal = [ Math.sin(meridian), -Math.cos(meridian), 0 ], polarAngle = 0, winding = 0;
+    d3_geo_areaRingSum.reset();
+    for (var i = 0, n = polygon.length; i < n; ++i) {
+      var ring = polygon[i], m = ring.length;
+      if (!m) continue;
+      var point0 = ring[0], λ0 = point0[0], φ0 = point0[1] / 2 + π / 4, sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), j = 1;
+      while (true) {
+        if (j === m) j = 0;
+        point = ring[j];
+        var λ = point[0], φ = point[1] / 2 + π / 4, sinφ = Math.sin(φ), cosφ = Math.cos(φ), dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, antimeridian = adλ > π, k = sinφ0 * sinφ;
+        d3_geo_areaRingSum.add(Math.atan2(k * sdλ * Math.sin(adλ), cosφ0 * cosφ + k * Math.cos(adλ)));
+        polarAngle += antimeridian ? dλ + sdλ * τ : dλ;
+        if (antimeridian ^ λ0 >= meridian ^ λ >= meridian) {
+          var arc = d3_geo_cartesianCross(d3_geo_cartesian(point0), d3_geo_cartesian(point));
+          d3_geo_cartesianNormalize(arc);
+          var intersection = d3_geo_cartesianCross(meridianNormal, arc);
+          d3_geo_cartesianNormalize(intersection);
+          var φarc = (antimeridian ^ dλ >= 0 ? -1 : 1) * d3_asin(intersection[2]);
+          if (parallel > φarc || parallel === φarc && (arc[0] || arc[1])) {
+            winding += antimeridian ^ dλ >= 0 ? 1 : -1;
+          }
+        }
+        if (!j++) break;
+        λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ, point0 = point;
+      }
+    }
+    return (polarAngle < -ε || polarAngle < ε && d3_geo_areaRingSum < -ε) ^ winding & 1;
+  }
+  function d3_geo_clipCircle(radius) {
+    var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians);
+    return d3_geo_clip(visible, clipLine, interpolate, smallRadius ? [ 0, -radius ] : [ -π, radius - π ]);
+    function visible(λ, φ) {
+      return Math.cos(λ) * Math.cos(φ) > cr;
+    }
+    function clipLine(listener) {
+      var point0, c0, v0, v00, clean;
+      return {
+        lineStart: function() {
+          v00 = v0 = false;
+          clean = 1;
+        },
+        point: function(λ, φ) {
+          var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0;
+          if (!point0 && (v00 = v0 = v)) listener.lineStart();
+          if (v !== v0) {
+            point2 = intersect(point0, point1);
+            if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) {
+              point1[0] += ε;
+              point1[1] += ε;
+              v = visible(point1[0], point1[1]);
+            }
+          }
+          if (v !== v0) {
+            clean = 0;
+            if (v) {
+              listener.lineStart();
+              point2 = intersect(point1, point0);
+              listener.point(point2[0], point2[1]);
+            } else {
+              point2 = intersect(point0, point1);
+              listener.point(point2[0], point2[1]);
+              listener.lineEnd();
+            }
+            point0 = point2;
+          } else if (notHemisphere && point0 && smallRadius ^ v) {
+            var t;
+            if (!(c & c0) && (t = intersect(point1, point0, true))) {
+              clean = 0;
+              if (smallRadius) {
+                listener.lineStart();
+                listener.point(t[0][0], t[0][1]);
+                listener.point(t[1][0], t[1][1]);
+                listener.lineEnd();
+              } else {
+                listener.point(t[1][0], t[1][1]);
+                listener.lineEnd();
+                listener.lineStart();
+                listener.point(t[0][0], t[0][1]);
+              }
+            }
+          }
+          if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) {
+            listener.point(point1[0], point1[1]);
+          }
+          point0 = point1, v0 = v, c0 = c;
+        },
+        lineEnd: function() {
+          if (v0) listener.lineEnd();
+          point0 = null;
+        },
+        clean: function() {
+          return clean | (v00 && v0) << 1;
+        }
+      };
+    }
+    function intersect(a, b, two) {
+      var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b);
+      var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2;
+      if (!determinant) return !two && a;
+      var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2);
+      d3_geo_cartesianAdd(A, B);
+      var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1);
+      if (t2 < 0) return;
+      var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu);
+      d3_geo_cartesianAdd(q, A);
+      q = d3_geo_spherical(q);
+      if (!two) return q;
+      var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z;
+      if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z;
+      var δλ = λ1 - λ0, polar = abs(δλ - π) < ε, meridian = polar || δλ < ε;
+      if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z;
+      if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) {
+        var q1 = d3_geo_cartesianScale(u, (-w + t) / uu);
+        d3_geo_cartesianAdd(q1, A);
+        return [ q, d3_geo_spherical(q1) ];
+      }
+    }
+    function code(λ, φ) {
+      var r = smallRadius ? radius : π - radius, code = 0;
+      if (λ < -r) code |= 1; else if (λ > r) code |= 2;
+      if (φ < -r) code |= 4; else if (φ > r) code |= 8;
+      return code;
+    }
+  }
+  function d3_geom_clipLine(x0, y0, x1, y1) {
+    return function(line) {
+      var a = line.a, b = line.b, ax = a.x, ay = a.y, bx = b.x, by = b.y, t0 = 0, t1 = 1, dx = bx - ax, dy = by - ay, r;
+      r = x0 - ax;
+      if (!dx && r > 0) return;
+      r /= dx;
+      if (dx < 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      } else if (dx > 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      }
+      r = x1 - ax;
+      if (!dx && r < 0) return;
+      r /= dx;
+      if (dx < 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      } else if (dx > 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      }
+      r = y0 - ay;
+      if (!dy && r > 0) return;
+      r /= dy;
+      if (dy < 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      } else if (dy > 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      }
+      r = y1 - ay;
+      if (!dy && r < 0) return;
+      r /= dy;
+      if (dy < 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      } else if (dy > 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      }
+      if (t0 > 0) line.a = {
+        x: ax + t0 * dx,
+        y: ay + t0 * dy
+      };
+      if (t1 < 1) line.b = {
+        x: ax + t1 * dx,
+        y: ay + t1 * dy
+      };
+      return line;
+    };
+  }
+  var d3_geo_clipExtentMAX = 1e9;
+  d3.geo.clipExtent = function() {
+    var x0, y0, x1, y1, stream, clip, clipExtent = {
+      stream: function(output) {
+        if (stream) stream.valid = false;
+        stream = clip(output);
+        stream.valid = true;
+        return stream;
+      },
+      extent: function(_) {
+        if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
+        clip = d3_geo_clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]);
+        if (stream) stream.valid = false, stream = null;
+        return clipExtent;
+      }
+    };
+    return clipExtent.extent([ [ 0, 0 ], [ 960, 500 ] ]);
+  };
+  function d3_geo_clipExtent(x0, y0, x1, y1) {
+    return function(listener) {
+      var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), clipLine = d3_geom_clipLine(x0, y0, x1, y1), segments, polygon, ring;
+      var clip = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          listener = bufferListener;
+          segments = [];
+          polygon = [];
+          clean = true;
+        },
+        polygonEnd: function() {
+          listener = listener_;
+          segments = d3.merge(segments);
+          var clipStartInside = insidePolygon([ x0, y1 ]), inside = clean && clipStartInside, visible = segments.length;
+          if (inside || visible) {
+            listener.polygonStart();
+            if (inside) {
+              listener.lineStart();
+              interpolate(null, null, 1, listener);
+              listener.lineEnd();
+            }
+            if (visible) {
+              d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener);
+            }
+            listener.polygonEnd();
+          }
+          segments = polygon = ring = null;
+        }
+      };
+      function insidePolygon(p) {
+        var wn = 0, n = polygon.length, y = p[1];
+        for (var i = 0; i < n; ++i) {
+          for (var j = 1, v = polygon[i], m = v.length, a = v[0], b; j < m; ++j) {
+            b = v[j];
+            if (a[1] <= y) {
+              if (b[1] > y && d3_cross2d(a, b, p) > 0) ++wn;
+            } else {
+              if (b[1] <= y && d3_cross2d(a, b, p) < 0) --wn;
+            }
+            a = b;
+          }
+        }
+        return wn !== 0;
+      }
+      function interpolate(from, to, direction, listener) {
+        var a = 0, a1 = 0;
+        if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) {
+          do {
+            listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
+          } while ((a = (a + direction + 4) % 4) !== a1);
+        } else {
+          listener.point(to[0], to[1]);
+        }
+      }
+      function pointVisible(x, y) {
+        return x0 <= x && x <= x1 && y0 <= y && y <= y1;
+      }
+      function point(x, y) {
+        if (pointVisible(x, y)) listener.point(x, y);
+      }
+      var x__, y__, v__, x_, y_, v_, first, clean;
+      function lineStart() {
+        clip.point = linePoint;
+        if (polygon) polygon.push(ring = []);
+        first = true;
+        v_ = false;
+        x_ = y_ = NaN;
+      }
+      function lineEnd() {
+        if (segments) {
+          linePoint(x__, y__);
+          if (v__ && v_) bufferListener.rejoin();
+          segments.push(bufferListener.buffer());
+        }
+        clip.point = point;
+        if (v_) listener.lineEnd();
+      }
+      function linePoint(x, y) {
+        x = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, x));
+        y = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, y));
+        var v = pointVisible(x, y);
+        if (polygon) ring.push([ x, y ]);
+        if (first) {
+          x__ = x, y__ = y, v__ = v;
+          first = false;
+          if (v) {
+            listener.lineStart();
+            listener.point(x, y);
+          }
+        } else {
+          if (v && v_) listener.point(x, y); else {
+            var l = {
+              a: {
+                x: x_,
+                y: y_
+              },
+              b: {
+                x: x,
+                y: y
+              }
+            };
+            if (clipLine(l)) {
+              if (!v_) {
+                listener.lineStart();
+                listener.point(l.a.x, l.a.y);
+              }
+              listener.point(l.b.x, l.b.y);
+              if (!v) listener.lineEnd();
+              clean = false;
+            } else if (v) {
+              listener.lineStart();
+              listener.point(x, y);
+              clean = false;
+            }
+          }
+        }
+        x_ = x, y_ = y, v_ = v;
+      }
+      return clip;
+    };
+    function corner(p, direction) {
+      return abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2;
+    }
+    function compare(a, b) {
+      return comparePoints(a.x, b.x);
+    }
+    function comparePoints(a, b) {
+      var ca = corner(a, 1), cb = corner(b, 1);
+      return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];
+    }
+  }
+  function d3_geo_conic(projectAt) {
+    var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1);
+    p.parallels = function(_) {
+      if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ];
+      return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180);
+    };
+    return p;
+  }
+  function d3_geo_conicEqualArea(φ0, φ1) {
+    var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n;
+    function forward(λ, φ) {
+      var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n;
+      return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = ρ0 - y;
+      return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
+    };
+    return forward;
+  }
+  (d3.geo.conicEqualArea = function() {
+    return d3_geo_conic(d3_geo_conicEqualArea);
+  }).raw = d3_geo_conicEqualArea;
+  d3.geo.albers = function() {
+    return d3.geo.conicEqualArea().rotate([ 96, 0 ]).center([ -.6, 38.7 ]).parallels([ 29.5, 45.5 ]).scale(1070);
+  };
+  d3.geo.albersUsa = function() {
+    var lower48 = d3.geo.albers();
+    var alaska = d3.geo.conicEqualArea().rotate([ 154, 0 ]).center([ -2, 58.5 ]).parallels([ 55, 65 ]);
+    var hawaii = d3.geo.conicEqualArea().rotate([ 157, 0 ]).center([ -3, 19.9 ]).parallels([ 8, 18 ]);
+    var point, pointStream = {
+      point: function(x, y) {
+        point = [ x, y ];
+      }
+    }, lower48Point, alaskaPoint, hawaiiPoint;
+    function albersUsa(coordinates) {
+      var x = coordinates[0], y = coordinates[1];
+      point = null;
+      (lower48Point(x, y), point) || (alaskaPoint(x, y), point) || hawaiiPoint(x, y);
+      return point;
+    }
+    albersUsa.invert = function(coordinates) {
+      var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k;
+      return (y >= .12 && y < .234 && x >= -.425 && x < -.214 ? alaska : y >= .166 && y < .234 && x >= -.214 && x < -.115 ? hawaii : lower48).invert(coordinates);
+    };
+    albersUsa.stream = function(stream) {
+      var lower48Stream = lower48.stream(stream), alaskaStream = alaska.stream(stream), hawaiiStream = hawaii.stream(stream);
+      return {
+        point: function(x, y) {
+          lower48Stream.point(x, y);
+          alaskaStream.point(x, y);
+          hawaiiStream.point(x, y);
+        },
+        sphere: function() {
+          lower48Stream.sphere();
+          alaskaStream.sphere();
+          hawaiiStream.sphere();
+        },
+        lineStart: function() {
+          lower48Stream.lineStart();
+          alaskaStream.lineStart();
+          hawaiiStream.lineStart();
+        },
+        lineEnd: function() {
+          lower48Stream.lineEnd();
+          alaskaStream.lineEnd();
+          hawaiiStream.lineEnd();
+        },
+        polygonStart: function() {
+          lower48Stream.polygonStart();
+          alaskaStream.polygonStart();
+          hawaiiStream.polygonStart();
+        },
+        polygonEnd: function() {
+          lower48Stream.polygonEnd();
+          alaskaStream.polygonEnd();
+          hawaiiStream.polygonEnd();
+        }
+      };
+    };
+    albersUsa.precision = function(_) {
+      if (!arguments.length) return lower48.precision();
+      lower48.precision(_);
+      alaska.precision(_);
+      hawaii.precision(_);
+      return albersUsa;
+    };
+    albersUsa.scale = function(_) {
+      if (!arguments.length) return lower48.scale();
+      lower48.scale(_);
+      alaska.scale(_ * .35);
+      hawaii.scale(_);
+      return albersUsa.translate(lower48.translate());
+    };
+    albersUsa.translate = function(_) {
+      if (!arguments.length) return lower48.translate();
+      var k = lower48.scale(), x = +_[0], y = +_[1];
+      lower48Point = lower48.translate(_).clipExtent([ [ x - .455 * k, y - .238 * k ], [ x + .455 * k, y + .238 * k ] ]).stream(pointStream).point;
+      alaskaPoint = alaska.translate([ x - .307 * k, y + .201 * k ]).clipExtent([ [ x - .425 * k + ε, y + .12 * k + ε ], [ x - .214 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
+      hawaiiPoint = hawaii.translate([ x - .205 * k, y + .212 * k ]).clipExtent([ [ x - .214 * k + ε, y + .166 * k + ε ], [ x - .115 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
+      return albersUsa;
+    };
+    return albersUsa.scale(1070);
+  };
+  var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = {
+    point: d3_noop,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: function() {
+      d3_geo_pathAreaPolygon = 0;
+      d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop;
+      d3_geo_pathAreaSum += abs(d3_geo_pathAreaPolygon / 2);
+    }
+  };
+  function d3_geo_pathAreaRingStart() {
+    var x00, y00, x0, y0;
+    d3_geo_pathArea.point = function(x, y) {
+      d3_geo_pathArea.point = nextPoint;
+      x00 = x0 = x, y00 = y0 = y;
+    };
+    function nextPoint(x, y) {
+      d3_geo_pathAreaPolygon += y0 * x - x0 * y;
+      x0 = x, y0 = y;
+    }
+    d3_geo_pathArea.lineEnd = function() {
+      nextPoint(x00, y00);
+    };
+  }
+  var d3_geo_pathBoundsX0, d3_geo_pathBoundsY0, d3_geo_pathBoundsX1, d3_geo_pathBoundsY1;
+  var d3_geo_pathBounds = {
+    point: d3_geo_pathBoundsPoint,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: d3_noop,
+    polygonEnd: d3_noop
+  };
+  function d3_geo_pathBoundsPoint(x, y) {
+    if (x < d3_geo_pathBoundsX0) d3_geo_pathBoundsX0 = x;
+    if (x > d3_geo_pathBoundsX1) d3_geo_pathBoundsX1 = x;
+    if (y < d3_geo_pathBoundsY0) d3_geo_pathBoundsY0 = y;
+    if (y > d3_geo_pathBoundsY1) d3_geo_pathBoundsY1 = y;
+  }
+  function d3_geo_pathBuffer() {
+    var pointCircle = d3_geo_pathBufferCircle(4.5), buffer = [];
+    var stream = {
+      point: point,
+      lineStart: function() {
+        stream.point = pointLineStart;
+      },
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        stream.lineEnd = lineEndPolygon;
+      },
+      polygonEnd: function() {
+        stream.lineEnd = lineEnd;
+        stream.point = point;
+      },
+      pointRadius: function(_) {
+        pointCircle = d3_geo_pathBufferCircle(_);
+        return stream;
+      },
+      result: function() {
+        if (buffer.length) {
+          var result = buffer.join("");
+          buffer = [];
+          return result;
+        }
+      }
+    };
+    function point(x, y) {
+      buffer.push("M", x, ",", y, pointCircle);
+    }
+    function pointLineStart(x, y) {
+      buffer.push("M", x, ",", y);
+      stream.point = pointLine;
+    }
+    function pointLine(x, y) {
+      buffer.push("L", x, ",", y);
+    }
+    function lineEnd() {
+      stream.point = point;
+    }
+    function lineEndPolygon() {
+      buffer.push("Z");
+    }
+    return stream;
+  }
+  function d3_geo_pathBufferCircle(radius) {
+    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + "z";
+  }
+  var d3_geo_pathCentroid = {
+    point: d3_geo_pathCentroidPoint,
+    lineStart: d3_geo_pathCentroidLineStart,
+    lineEnd: d3_geo_pathCentroidLineEnd,
+    polygonStart: function() {
+      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
+      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart;
+      d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd;
+    }
+  };
+  function d3_geo_pathCentroidPoint(x, y) {
+    d3_geo_centroidX0 += x;
+    d3_geo_centroidY0 += y;
+    ++d3_geo_centroidZ0;
+  }
+  function d3_geo_pathCentroidLineStart() {
+    var x0, y0;
+    d3_geo_pathCentroid.point = function(x, y) {
+      d3_geo_pathCentroid.point = nextPoint;
+      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
+    };
+    function nextPoint(x, y) {
+      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
+      d3_geo_centroidX1 += z * (x0 + x) / 2;
+      d3_geo_centroidY1 += z * (y0 + y) / 2;
+      d3_geo_centroidZ1 += z;
+      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
+    }
+  }
+  function d3_geo_pathCentroidLineEnd() {
+    d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
+  }
+  function d3_geo_pathCentroidRingStart() {
+    var x00, y00, x0, y0;
+    d3_geo_pathCentroid.point = function(x, y) {
+      d3_geo_pathCentroid.point = nextPoint;
+      d3_geo_pathCentroidPoint(x00 = x0 = x, y00 = y0 = y);
+    };
+    function nextPoint(x, y) {
+      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
+      d3_geo_centroidX1 += z * (x0 + x) / 2;
+      d3_geo_centroidY1 += z * (y0 + y) / 2;
+      d3_geo_centroidZ1 += z;
+      z = y0 * x - x0 * y;
+      d3_geo_centroidX2 += z * (x0 + x);
+      d3_geo_centroidY2 += z * (y0 + y);
+      d3_geo_centroidZ2 += z * 3;
+      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
+    }
+    d3_geo_pathCentroid.lineEnd = function() {
+      nextPoint(x00, y00);
+    };
+  }
+  function d3_geo_pathContext(context) {
+    var pointRadius = 4.5;
+    var stream = {
+      point: point,
+      lineStart: function() {
+        stream.point = pointLineStart;
+      },
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        stream.lineEnd = lineEndPolygon;
+      },
+      polygonEnd: function() {
+        stream.lineEnd = lineEnd;
+        stream.point = point;
+      },
+      pointRadius: function(_) {
+        pointRadius = _;
+        return stream;
+      },
+      result: d3_noop
+    };
+    function point(x, y) {
+      context.moveTo(x + pointRadius, y);
+      context.arc(x, y, pointRadius, 0, τ);
+    }
+    function pointLineStart(x, y) {
+      context.moveTo(x, y);
+      stream.point = pointLine;
+    }
+    function pointLine(x, y) {
+      context.lineTo(x, y);
+    }
+    function lineEnd() {
+      stream.point = point;
+    }
+    function lineEndPolygon() {
+      context.closePath();
+    }
+    return stream;
+  }
+  function d3_geo_resample(project) {
+    var δ2 = .5, cosMinDistance = Math.cos(30 * d3_radians), maxDepth = 16;
+    function resample(stream) {
+      return (maxDepth ? resampleRecursive : resampleNone)(stream);
+    }
+    function resampleNone(stream) {
+      return d3_geo_transformPoint(stream, function(x, y) {
+        x = project(x, y);
+        stream.point(x[0], x[1]);
+      });
+    }
+    function resampleRecursive(stream) {
+      var λ00, φ00, x00, y00, a00, b00, c00, λ0, x0, y0, a0, b0, c0;
+      var resample = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          stream.polygonStart();
+          resample.lineStart = ringStart;
+        },
+        polygonEnd: function() {
+          stream.polygonEnd();
+          resample.lineStart = lineStart;
+        }
+      };
+      function point(x, y) {
+        x = project(x, y);
+        stream.point(x[0], x[1]);
+      }
+      function lineStart() {
+        x0 = NaN;
+        resample.point = linePoint;
+        stream.lineStart();
+      }
+      function linePoint(λ, φ) {
+        var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ);
+        resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
+        stream.point(x0, y0);
+      }
+      function lineEnd() {
+        resample.point = point;
+        stream.lineEnd();
+      }
+      function ringStart() {
+        lineStart();
+        resample.point = ringPoint;
+        resample.lineEnd = ringEnd;
+      }
+      function ringPoint(λ, φ) {
+        linePoint(λ00 = λ, φ00 = φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
+        resample.point = linePoint;
+      }
+      function ringEnd() {
+        resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream);
+        resample.lineEnd = lineEnd;
+        lineEnd();
+      }
+      return resample;
+    }
+    function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) {
+      var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy;
+      if (d2 > 4 * δ2 && depth--) {
+        var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = abs(abs(c) - 1) < ε || abs(λ0 - λ1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2;
+        if (dz * dz / d2 > δ2 || abs((dx * dx2 + dy * dy2) / d2 - .5) > .3 || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) {
+          resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream);
+          stream.point(x2, y2);
+          resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream);
+        }
+      }
+    }
+    resample.precision = function(_) {
+      if (!arguments.length) return Math.sqrt(δ2);
+      maxDepth = (δ2 = _ * _) > 0 && 16;
+      return resample;
+    };
+    return resample;
+  }
+  d3.geo.path = function() {
+    var pointRadius = 4.5, projection, context, projectStream, contextStream, cacheStream;
+    function path(object) {
+      if (object) {
+        if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
+        if (!cacheStream || !cacheStream.valid) cacheStream = projectStream(contextStream);
+        d3.geo.stream(object, cacheStream);
+      }
+      return contextStream.result();
+    }
+    path.area = function(object) {
+      d3_geo_pathAreaSum = 0;
+      d3.geo.stream(object, projectStream(d3_geo_pathArea));
+      return d3_geo_pathAreaSum;
+    };
+    path.centroid = function(object) {
+      d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
+      d3.geo.stream(object, projectStream(d3_geo_pathCentroid));
+      return d3_geo_centroidZ2 ? [ d3_geo_centroidX2 / d3_geo_centroidZ2, d3_geo_centroidY2 / d3_geo_centroidZ2 ] : d3_geo_centroidZ1 ? [ d3_geo_centroidX1 / d3_geo_centroidZ1, d3_geo_centroidY1 / d3_geo_centroidZ1 ] : d3_geo_centroidZ0 ? [ d3_geo_centroidX0 / d3_geo_centroidZ0, d3_geo_centroidY0 / d3_geo_centroidZ0 ] : [ NaN, NaN ];
+    };
+    path.bounds = function(object) {
+      d3_geo_pathBoundsX1 = d3_geo_pathBoundsY1 = -(d3_geo_pathBoundsX0 = d3_geo_pathBoundsY0 = Infinity);
+      d3.geo.stream(object, projectStream(d3_geo_pathBounds));
+      return [ [ d3_geo_pathBoundsX0, d3_geo_pathBoundsY0 ], [ d3_geo_pathBoundsX1, d3_geo_pathBoundsY1 ] ];
+    };
+    path.projection = function(_) {
+      if (!arguments.length) return projection;
+      projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity;
+      return reset();
+    };
+    path.context = function(_) {
+      if (!arguments.length) return context;
+      contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_);
+      if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
+      return reset();
+    };
+    path.pointRadius = function(_) {
+      if (!arguments.length) return pointRadius;
+      pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
+      return path;
+    };
+    function reset() {
+      cacheStream = null;
+      return path;
+    }
+    return path.projection(d3.geo.albersUsa()).context(null);
+  };
+  function d3_geo_pathProjectStream(project) {
+    var resample = d3_geo_resample(function(x, y) {
+      return project([ x * d3_degrees, y * d3_degrees ]);
+    });
+    return function(stream) {
+      return d3_geo_projectionRadians(resample(stream));
+    };
+  }
+  d3.geo.transform = function(methods) {
+    return {
+      stream: function(stream) {
+        var transform = new d3_geo_transform(stream);
+        for (var k in methods) transform[k] = methods[k];
+        return transform;
+      }
+    };
+  };
+  function d3_geo_transform(stream) {
+    this.stream = stream;
+  }
+  d3_geo_transform.prototype = {
+    point: function(x, y) {
+      this.stream.point(x, y);
+    },
+    sphere: function() {
+      this.stream.sphere();
+    },
+    lineStart: function() {
+      this.stream.lineStart();
+    },
+    lineEnd: function() {
+      this.stream.lineEnd();
+    },
+    polygonStart: function() {
+      this.stream.polygonStart();
+    },
+    polygonEnd: function() {
+      this.stream.polygonEnd();
+    }
+  };
+  function d3_geo_transformPoint(stream, point) {
+    return {
+      point: point,
+      sphere: function() {
+        stream.sphere();
+      },
+      lineStart: function() {
+        stream.lineStart();
+      },
+      lineEnd: function() {
+        stream.lineEnd();
+      },
+      polygonStart: function() {
+        stream.polygonStart();
+      },
+      polygonEnd: function() {
+        stream.polygonEnd();
+      }
+    };
+  }
+  d3.geo.projection = d3_geo_projection;
+  d3.geo.projectionMutator = d3_geo_projectionMutator;
+  function d3_geo_projection(project) {
+    return d3_geo_projectionMutator(function() {
+      return project;
+    })();
+  }
+  function d3_geo_projectionMutator(projectAt) {
+    var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) {
+      x = project(x, y);
+      return [ x[0] * k + δx, δy - x[1] * k ];
+    }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null, stream;
+    function projection(point) {
+      point = projectRotate(point[0] * d3_radians, point[1] * d3_radians);
+      return [ point[0] * k + δx, δy - point[1] * k ];
+    }
+    function invert(point) {
+      point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k);
+      return point && [ point[0] * d3_degrees, point[1] * d3_degrees ];
+    }
+    projection.stream = function(output) {
+      if (stream) stream.valid = false;
+      stream = d3_geo_projectionRadians(preclip(rotate, projectResample(postclip(output))));
+      stream.valid = true;
+      return stream;
+    };
+    projection.clipAngle = function(_) {
+      if (!arguments.length) return clipAngle;
+      preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians);
+      return invalidate();
+    };
+    projection.clipExtent = function(_) {
+      if (!arguments.length) return clipExtent;
+      clipExtent = _;
+      postclip = _ ? d3_geo_clipExtent(_[0][0], _[0][1], _[1][0], _[1][1]) : d3_identity;
+      return invalidate();
+    };
+    projection.scale = function(_) {
+      if (!arguments.length) return k;
+      k = +_;
+      return reset();
+    };
+    projection.translate = function(_) {
+      if (!arguments.length) return [ x, y ];
+      x = +_[0];
+      y = +_[1];
+      return reset();
+    };
+    projection.center = function(_) {
+      if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ];
+      λ = _[0] % 360 * d3_radians;
+      φ = _[1] % 360 * d3_radians;
+      return reset();
+    };
+    projection.rotate = function(_) {
+      if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ];
+      δλ = _[0] % 360 * d3_radians;
+      δφ = _[1] % 360 * d3_radians;
+      δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0;
+      return reset();
+    };
+    d3.rebind(projection, projectResample, "precision");
+    function reset() {
+      projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
+      var center = project(λ, φ);
+      δx = x - center[0] * k;
+      δy = y + center[1] * k;
+      return invalidate();
+    }
+    function invalidate() {
+      if (stream) stream.valid = false, stream = null;
+      return projection;
+    }
+    return function() {
+      project = projectAt.apply(this, arguments);
+      projection.invert = project.invert && invert;
+      return reset();
+    };
+  }
+  function d3_geo_projectionRadians(stream) {
+    return d3_geo_transformPoint(stream, function(x, y) {
+      stream.point(x * d3_radians, y * d3_radians);
+    });
+  }
+  function d3_geo_equirectangular(λ, φ) {
+    return [ λ, φ ];
+  }
+  (d3.geo.equirectangular = function() {
+    return d3_geo_projection(d3_geo_equirectangular);
+  }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular;
+  d3.geo.rotation = function(rotate) {
+    rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0);
+    function forward(coordinates) {
+      coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
+      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
+    }
+    forward.invert = function(coordinates) {
+      coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
+      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
+    };
+    return forward;
+  };
+  function d3_geo_identityRotation(λ, φ) {
+    return [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
+  }
+  d3_geo_identityRotation.invert = d3_geo_equirectangular;
+  function d3_geo_rotation(δλ, δφ, δγ) {
+    return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_identityRotation;
+  }
+  function d3_geo_forwardRotationλ(δλ) {
+    return function(λ, φ) {
+      return λ += δλ, [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
+    };
+  }
+  function d3_geo_rotationλ(δλ) {
+    var rotation = d3_geo_forwardRotationλ(δλ);
+    rotation.invert = d3_geo_forwardRotationλ(-δλ);
+    return rotation;
+  }
+  function d3_geo_rotationφγ(δφ, δγ) {
+    var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ);
+    function rotation(λ, φ) {
+      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ;
+      return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), d3_asin(k * cosδγ + y * sinδγ) ];
+    }
+    rotation.invert = function(λ, φ) {
+      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ;
+      return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), d3_asin(k * cosδφ - x * sinδφ) ];
+    };
+    return rotation;
+  }
+  d3.geo.circle = function() {
+    var origin = [ 0, 0 ], angle, precision = 6, interpolate;
+    function circle() {
+      var center = typeof origin === "function" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = [];
+      interpolate(null, null, 1, {
+        point: function(x, y) {
+          ring.push(x = rotate(x, y));
+          x[0] *= d3_degrees, x[1] *= d3_degrees;
+        }
+      });
+      return {
+        type: "Polygon",
+        coordinates: [ ring ]
+      };
+    }
+    circle.origin = function(x) {
+      if (!arguments.length) return origin;
+      origin = x;
+      return circle;
+    };
+    circle.angle = function(x) {
+      if (!arguments.length) return angle;
+      interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians);
+      return circle;
+    };
+    circle.precision = function(_) {
+      if (!arguments.length) return precision;
+      interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians);
+      return circle;
+    };
+    return circle.angle(90);
+  };
+  function d3_geo_circleInterpolate(radius, precision) {
+    var cr = Math.cos(radius), sr = Math.sin(radius);
+    return function(from, to, direction, listener) {
+      var step = direction * precision;
+      if (from != null) {
+        from = d3_geo_circleAngle(cr, from);
+        to = d3_geo_circleAngle(cr, to);
+        if (direction > 0 ? from < to : from > to) from += direction * τ;
+      } else {
+        from = radius + direction * τ;
+        to = radius - .5 * step;
+      }
+      for (var point, t = from; direction > 0 ? t > to : t < to; t -= step) {
+        listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]);
+      }
+    };
+  }
+  function d3_geo_circleAngle(cr, point) {
+    var a = d3_geo_cartesian(point);
+    a[0] -= cr;
+    d3_geo_cartesianNormalize(a);
+    var angle = d3_acos(-a[1]);
+    return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI);
+  }
+  d3.geo.distance = function(a, b) {
+    var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t;
+    return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);
+  };
+  d3.geo.graticule = function() {
+    var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5;
+    function graticule() {
+      return {
+        type: "MultiLineString",
+        coordinates: lines()
+      };
+    }
+    function lines() {
+      return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) {
+        return abs(x % DX) > ε;
+      }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) {
+        return abs(y % DY) > ε;
+      }).map(y));
+    }
+    graticule.lines = function() {
+      return lines().map(function(coordinates) {
+        return {
+          type: "LineString",
+          coordinates: coordinates
+        };
+      });
+    };
+    graticule.outline = function() {
+      return {
+        type: "Polygon",
+        coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ]
+      };
+    };
+    graticule.extent = function(_) {
+      if (!arguments.length) return graticule.minorExtent();
+      return graticule.majorExtent(_).minorExtent(_);
+    };
+    graticule.majorExtent = function(_) {
+      if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ];
+      X0 = +_[0][0], X1 = +_[1][0];
+      Y0 = +_[0][1], Y1 = +_[1][1];
+      if (X0 > X1) _ = X0, X0 = X1, X1 = _;
+      if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
+      return graticule.precision(precision);
+    };
+    graticule.minorExtent = function(_) {
+      if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
+      x0 = +_[0][0], x1 = +_[1][0];
+      y0 = +_[0][1], y1 = +_[1][1];
+      if (x0 > x1) _ = x0, x0 = x1, x1 = _;
+      if (y0 > y1) _ = y0, y0 = y1, y1 = _;
+      return graticule.precision(precision);
+    };
+    graticule.step = function(_) {
+      if (!arguments.length) return graticule.minorStep();
+      return graticule.majorStep(_).minorStep(_);
+    };
+    graticule.majorStep = function(_) {
+      if (!arguments.length) return [ DX, DY ];
+      DX = +_[0], DY = +_[1];
+      return graticule;
+    };
+    graticule.minorStep = function(_) {
+      if (!arguments.length) return [ dx, dy ];
+      dx = +_[0], dy = +_[1];
+      return graticule;
+    };
+    graticule.precision = function(_) {
+      if (!arguments.length) return precision;
+      precision = +_;
+      x = d3_geo_graticuleX(y0, y1, 90);
+      y = d3_geo_graticuleY(x0, x1, precision);
+      X = d3_geo_graticuleX(Y0, Y1, 90);
+      Y = d3_geo_graticuleY(X0, X1, precision);
+      return graticule;
+    };
+    return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]);
+  };
+  function d3_geo_graticuleX(y0, y1, dy) {
+    var y = d3.range(y0, y1 - ε, dy).concat(y1);
+    return function(x) {
+      return y.map(function(y) {
+        return [ x, y ];
+      });
+    };
+  }
+  function d3_geo_graticuleY(x0, x1, dx) {
+    var x = d3.range(x0, x1 - ε, dx).concat(x1);
+    return function(y) {
+      return x.map(function(x) {
+        return [ x, y ];
+      });
+    };
+  }
+  function d3_source(d) {
+    return d.source;
+  }
+  function d3_target(d) {
+    return d.target;
+  }
+  d3.geo.greatArc = function() {
+    var source = d3_source, source_, target = d3_target, target_;
+    function greatArc() {
+      return {
+        type: "LineString",
+        coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ]
+      };
+    }
+    greatArc.distance = function() {
+      return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments));
+    };
+    greatArc.source = function(_) {
+      if (!arguments.length) return source;
+      source = _, source_ = typeof _ === "function" ? null : _;
+      return greatArc;
+    };
+    greatArc.target = function(_) {
+      if (!arguments.length) return target;
+      target = _, target_ = typeof _ === "function" ? null : _;
+      return greatArc;
+    };
+    greatArc.precision = function() {
+      return arguments.length ? greatArc : 0;
+    };
+    return greatArc;
+  };
+  d3.geo.interpolate = function(source, target) {
+    return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians);
+  };
+  function d3_geo_interpolate(x0, y0, x1, y1) {
+    var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d);
+    var interpolate = d ? function(t) {
+      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;
+      return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ];
+    } : function() {
+      return [ x0 * d3_degrees, y0 * d3_degrees ];
+    };
+    interpolate.distance = d;
+    return interpolate;
+  }
+  d3.geo.length = function(object) {
+    d3_geo_lengthSum = 0;
+    d3.geo.stream(object, d3_geo_length);
+    return d3_geo_lengthSum;
+  };
+  var d3_geo_lengthSum;
+  var d3_geo_length = {
+    sphere: d3_noop,
+    point: d3_noop,
+    lineStart: d3_geo_lengthLineStart,
+    lineEnd: d3_noop,
+    polygonStart: d3_noop,
+    polygonEnd: d3_noop
+  };
+  function d3_geo_lengthLineStart() {
+    var λ0, sinφ0, cosφ0;
+    d3_geo_length.point = function(λ, φ) {
+      λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ);
+      d3_geo_length.point = nextPoint;
+    };
+    d3_geo_length.lineEnd = function() {
+      d3_geo_length.point = d3_geo_length.lineEnd = d3_noop;
+    };
+    function nextPoint(λ, φ) {
+      var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t);
+      d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ);
+      λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ;
+    }
+  }
+  function d3_geo_azimuthal(scale, angle) {
+    function azimuthal(λ, φ) {
+      var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ);
+      return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ];
+    }
+    azimuthal.invert = function(x, y) {
+      var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c);
+      return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ];
+    };
+    return azimuthal;
+  }
+  var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) {
+    return Math.sqrt(2 / (1 + cosλcosφ));
+  }, function(ρ) {
+    return 2 * Math.asin(ρ / 2);
+  });
+  (d3.geo.azimuthalEqualArea = function() {
+    return d3_geo_projection(d3_geo_azimuthalEqualArea);
+  }).raw = d3_geo_azimuthalEqualArea;
+  var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) {
+    var c = Math.acos(cosλcosφ);
+    return c && c / Math.sin(c);
+  }, d3_identity);
+  (d3.geo.azimuthalEquidistant = function() {
+    return d3_geo_projection(d3_geo_azimuthalEquidistant);
+  }).raw = d3_geo_azimuthalEquidistant;
+  function d3_geo_conicConformal(φ0, φ1) {
+    var cosφ0 = Math.cos(φ0), t = function(φ) {
+      return Math.tan(π / 4 + φ / 2);
+    }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n;
+    if (!n) return d3_geo_mercator;
+    function forward(λ, φ) {
+      if (F > 0) {
+        if (φ < -halfπ + ε) φ = -halfπ + ε;
+      } else {
+        if (φ > halfπ - ε) φ = halfπ - ε;
+      }
+      var ρ = F / Math.pow(t(φ), n);
+      return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y);
+      return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - halfπ ];
+    };
+    return forward;
+  }
+  (d3.geo.conicConformal = function() {
+    return d3_geo_conic(d3_geo_conicConformal);
+  }).raw = d3_geo_conicConformal;
+  function d3_geo_conicEquidistant(φ0, φ1) {
+    var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0;
+    if (abs(n) < ε) return d3_geo_equirectangular;
+    function forward(λ, φ) {
+      var ρ = G - φ;
+      return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = G - y;
+      return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ];
+    };
+    return forward;
+  }
+  (d3.geo.conicEquidistant = function() {
+    return d3_geo_conic(d3_geo_conicEquidistant);
+  }).raw = d3_geo_conicEquidistant;
+  var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) {
+    return 1 / cosλcosφ;
+  }, Math.atan);
+  (d3.geo.gnomonic = function() {
+    return d3_geo_projection(d3_geo_gnomonic);
+  }).raw = d3_geo_gnomonic;
+  function d3_geo_mercator(λ, φ) {
+    return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ];
+  }
+  d3_geo_mercator.invert = function(x, y) {
+    return [ x, 2 * Math.atan(Math.exp(y)) - halfπ ];
+  };
+  function d3_geo_mercatorProjection(project) {
+    var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto;
+    m.scale = function() {
+      var v = scale.apply(m, arguments);
+      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
+    };
+    m.translate = function() {
+      var v = translate.apply(m, arguments);
+      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
+    };
+    m.clipExtent = function(_) {
+      var v = clipExtent.apply(m, arguments);
+      if (v === m) {
+        if (clipAuto = _ == null) {
+          var k = π * scale(), t = translate();
+          clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]);
+        }
+      } else if (clipAuto) {
+        v = null;
+      }
+      return v;
+    };
+    return m.clipExtent(null);
+  }
+  (d3.geo.mercator = function() {
+    return d3_geo_mercatorProjection(d3_geo_mercator);
+  }).raw = d3_geo_mercator;
+  var d3_geo_orthographic = d3_geo_azimuthal(function() {
+    return 1;
+  }, Math.asin);
+  (d3.geo.orthographic = function() {
+    return d3_geo_projection(d3_geo_orthographic);
+  }).raw = d3_geo_orthographic;
+  var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {
+    return 1 / (1 + cosλcosφ);
+  }, function(ρ) {
+    return 2 * Math.atan(ρ);
+  });
+  (d3.geo.stereographic = function() {
+    return d3_geo_projection(d3_geo_stereographic);
+  }).raw = d3_geo_stereographic;
+  function d3_geo_transverseMercator(λ, φ) {
+    return [ Math.log(Math.tan(π / 4 + φ / 2)), -λ ];
+  }
+  d3_geo_transverseMercator.invert = function(x, y) {
+    return [ -y, 2 * Math.atan(Math.exp(x)) - halfπ ];
+  };
+  (d3.geo.transverseMercator = function() {
+    var projection = d3_geo_mercatorProjection(d3_geo_transverseMercator), center = projection.center, rotate = projection.rotate;
+    projection.center = function(_) {
+      return _ ? center([ -_[1], _[0] ]) : (_ = center(), [ _[1], -_[0] ]);
+    };
+    projection.rotate = function(_) {
+      return _ ? rotate([ _[0], _[1], _.length > 2 ? _[2] + 90 : 90 ]) : (_ = rotate(), 
+      [ _[0], _[1], _[2] - 90 ]);
+    };
+    return rotate([ 0, 0, 90 ]);
+  }).raw = d3_geo_transverseMercator;
+  d3.geom = {};
+  function d3_geom_pointX(d) {
+    return d[0];
+  }
+  function d3_geom_pointY(d) {
+    return d[1];
+  }
+  d3.geom.hull = function(vertices) {
+    var x = d3_geom_pointX, y = d3_geom_pointY;
+    if (arguments.length) return hull(vertices);
+    function hull(data) {
+      if (data.length < 3) return [];
+      var fx = d3_functor(x), fy = d3_functor(y), i, n = data.length, points = [], flippedPoints = [];
+      for (i = 0; i < n; i++) {
+        points.push([ +fx.call(this, data[i], i), +fy.call(this, data[i], i), i ]);
+      }
+      points.sort(d3_geom_hullOrder);
+      for (i = 0; i < n; i++) flippedPoints.push([ points[i][0], -points[i][1] ]);
+      var upper = d3_geom_hullUpper(points), lower = d3_geom_hullUpper(flippedPoints);
+      var skipLeft = lower[0] === upper[0], skipRight = lower[lower.length - 1] === upper[upper.length - 1], polygon = [];
+      for (i = upper.length - 1; i >= 0; --i) polygon.push(data[points[upper[i]][2]]);
+      for (i = +skipLeft; i < lower.length - skipRight; ++i) polygon.push(data[points[lower[i]][2]]);
+      return polygon;
+    }
+    hull.x = function(_) {
+      return arguments.length ? (x = _, hull) : x;
+    };
+    hull.y = function(_) {
+      return arguments.length ? (y = _, hull) : y;
+    };
+    return hull;
+  };
+  function d3_geom_hullUpper(points) {
+    var n = points.length, hull = [ 0, 1 ], hs = 2;
+    for (var i = 2; i < n; i++) {
+      while (hs > 1 && d3_cross2d(points[hull[hs - 2]], points[hull[hs - 1]], points[i]) <= 0) --hs;
+      hull[hs++] = i;
+    }
+    return hull.slice(0, hs);
+  }
+  function d3_geom_hullOrder(a, b) {
+    return a[0] - b[0] || a[1] - b[1];
+  }
+  d3.geom.polygon = function(coordinates) {
+    d3_subclass(coordinates, d3_geom_polygonPrototype);
+    return coordinates;
+  };
+  var d3_geom_polygonPrototype = d3.geom.polygon.prototype = [];
+  d3_geom_polygonPrototype.area = function() {
+    var i = -1, n = this.length, a, b = this[n - 1], area = 0;
+    while (++i < n) {
+      a = b;
+      b = this[i];
+      area += a[1] * b[0] - a[0] * b[1];
+    }
+    return area * .5;
+  };
+  d3_geom_polygonPrototype.centroid = function(k) {
+    var i = -1, n = this.length, x = 0, y = 0, a, b = this[n - 1], c;
+    if (!arguments.length) k = -1 / (6 * this.area());
+    while (++i < n) {
+      a = b;
+      b = this[i];
+      c = a[0] * b[1] - b[0] * a[1];
+      x += (a[0] + b[0]) * c;
+      y += (a[1] + b[1]) * c;
+    }
+    return [ x * k, y * k ];
+  };
+  d3_geom_polygonPrototype.clip = function(subject) {
+    var input, closed = d3_geom_polygonClosed(subject), i = -1, n = this.length - d3_geom_polygonClosed(this), j, m, a = this[n - 1], b, c, d;
+    while (++i < n) {
+      input = subject.slice();
+      subject.length = 0;
+      b = this[i];
+      c = input[(m = input.length - closed) - 1];
+      j = -1;
+      while (++j < m) {
+        d = input[j];
+        if (d3_geom_polygonInside(d, a, b)) {
+          if (!d3_geom_polygonInside(c, a, b)) {
+            subject.push(d3_geom_polygonIntersect(c, d, a, b));
+          }
+          subject.push(d);
+        } else if (d3_geom_polygonInside(c, a, b)) {
+          subject.push(d3_geom_polygonIntersect(c, d, a, b));
+        }
+        c = d;
+      }
+      if (closed) subject.push(subject[0]);
+      a = b;
+    }
+    return subject;
+  };
+  function d3_geom_polygonInside(p, a, b) {
+    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
+  }
+  function d3_geom_polygonIntersect(c, d, a, b) {
+    var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21);
+    return [ x1 + ua * x21, y1 + ua * y21 ];
+  }
+  function d3_geom_polygonClosed(coordinates) {
+    var a = coordinates[0], b = coordinates[coordinates.length - 1];
+    return !(a[0] - b[0] || a[1] - b[1]);
+  }
+  var d3_geom_voronoiEdges, d3_geom_voronoiCells, d3_geom_voronoiBeaches, d3_geom_voronoiBeachPool = [], d3_geom_voronoiFirstCircle, d3_geom_voronoiCircles, d3_geom_voronoiCirclePool = [];
+  function d3_geom_voronoiBeach() {
+    d3_geom_voronoiRedBlackNode(this);
+    this.edge = this.site = this.circle = null;
+  }
+  function d3_geom_voronoiCreateBeach(site) {
+    var beach = d3_geom_voronoiBeachPool.pop() || new d3_geom_voronoiBeach();
+    beach.site = site;
+    return beach;
+  }
+  function d3_geom_voronoiDetachBeach(beach) {
+    d3_geom_voronoiDetachCircle(beach);
+    d3_geom_voronoiBeaches.remove(beach);
+    d3_geom_voronoiBeachPool.push(beach);
+    d3_geom_voronoiRedBlackNode(beach);
+  }
+  function d3_geom_voronoiRemoveBeach(beach) {
+    var circle = beach.circle, x = circle.x, y = circle.cy, vertex = {
+      x: x,
+      y: y
+    }, previous = beach.P, next = beach.N, disappearing = [ beach ];
+    d3_geom_voronoiDetachBeach(beach);
+    var lArc = previous;
+    while (lArc.circle && abs(x - lArc.circle.x) < ε && abs(y - lArc.circle.cy) < ε) {
+      previous = lArc.P;
+      disappearing.unshift(lArc);
+      d3_geom_voronoiDetachBeach(lArc);
+      lArc = previous;
+    }
+    disappearing.unshift(lArc);
+    d3_geom_voronoiDetachCircle(lArc);
+    var rArc = next;
+    while (rArc.circle && abs(x - rArc.circle.x) < ε && abs(y - rArc.circle.cy) < ε) {
+      next = rArc.N;
+      disappearing.push(rArc);
+      d3_geom_voronoiDetachBeach(rArc);
+      rArc = next;
+    }
+    disappearing.push(rArc);
+    d3_geom_voronoiDetachCircle(rArc);
+    var nArcs = disappearing.length, iArc;
+    for (iArc = 1; iArc < nArcs; ++iArc) {
+      rArc = disappearing[iArc];
+      lArc = disappearing[iArc - 1];
+      d3_geom_voronoiSetEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);
+    }
+    lArc = disappearing[0];
+    rArc = disappearing[nArcs - 1];
+    rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, rArc.site, null, vertex);
+    d3_geom_voronoiAttachCircle(lArc);
+    d3_geom_voronoiAttachCircle(rArc);
+  }
+  function d3_geom_voronoiAddBeach(site) {
+    var x = site.x, directrix = site.y, lArc, rArc, dxl, dxr, node = d3_geom_voronoiBeaches._;
+    while (node) {
+      dxl = d3_geom_voronoiLeftBreakPoint(node, directrix) - x;
+      if (dxl > ε) node = node.L; else {
+        dxr = x - d3_geom_voronoiRightBreakPoint(node, directrix);
+        if (dxr > ε) {
+          if (!node.R) {
+            lArc = node;
+            break;
+          }
+          node = node.R;
+        } else {
+          if (dxl > -ε) {
+            lArc = node.P;
+            rArc = node;
+          } else if (dxr > -ε) {
+            lArc = node;
+            rArc = node.N;
+          } else {
+            lArc = rArc = node;
+          }
+          break;
+        }
+      }
+    }
+    var newArc = d3_geom_voronoiCreateBeach(site);
+    d3_geom_voronoiBeaches.insert(lArc, newArc);
+    if (!lArc && !rArc) return;
+    if (lArc === rArc) {
+      d3_geom_voronoiDetachCircle(lArc);
+      rArc = d3_geom_voronoiCreateBeach(lArc.site);
+      d3_geom_voronoiBeaches.insert(newArc, rArc);
+      newArc.edge = rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
+      d3_geom_voronoiAttachCircle(lArc);
+      d3_geom_voronoiAttachCircle(rArc);
+      return;
+    }
+    if (!rArc) {
+      newArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
+      return;
+    }
+    d3_geom_voronoiDetachCircle(lArc);
+    d3_geom_voronoiDetachCircle(rArc);
+    var lSite = lArc.site, ax = lSite.x, ay = lSite.y, bx = site.x - ax, by = site.y - ay, rSite = rArc.site, cx = rSite.x - ax, cy = rSite.y - ay, d = 2 * (bx * cy - by * cx), hb = bx * bx + by * by, hc = cx * cx + cy * cy, vertex = {
+      x: (cy * hb - by * hc) / d + ax,
+      y: (bx * hc - cx * hb) / d + ay
+    };
+    d3_geom_voronoiSetEdgeEnd(rArc.edge, lSite, rSite, vertex);
+    newArc.edge = d3_geom_voronoiCreateEdge(lSite, site, null, vertex);
+    rArc.edge = d3_geom_voronoiCreateEdge(site, rSite, null, vertex);
+    d3_geom_voronoiAttachCircle(lArc);
+    d3_geom_voronoiAttachCircle(rArc);
+  }
+  function d3_geom_voronoiLeftBreakPoint(arc, directrix) {
+    var site = arc.site, rfocx = site.x, rfocy = site.y, pby2 = rfocy - directrix;
+    if (!pby2) return rfocx;
+    var lArc = arc.P;
+    if (!lArc) return -Infinity;
+    site = lArc.site;
+    var lfocx = site.x, lfocy = site.y, plby2 = lfocy - directrix;
+    if (!plby2) return lfocx;
+    var hl = lfocx - rfocx, aby2 = 1 / pby2 - 1 / plby2, b = hl / plby2;
+    if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;
+    return (rfocx + lfocx) / 2;
+  }
+  function d3_geom_voronoiRightBreakPoint(arc, directrix) {
+    var rArc = arc.N;
+    if (rArc) return d3_geom_voronoiLeftBreakPoint(rArc, directrix);
+    var site = arc.site;
+    return site.y === directrix ? site.x : Infinity;
+  }
+  function d3_geom_voronoiCell(site) {
+    this.site = site;
+    this.edges = [];
+  }
+  d3_geom_voronoiCell.prototype.prepare = function() {
+    var halfEdges = this.edges, iHalfEdge = halfEdges.length, edge;
+    while (iHalfEdge--) {
+      edge = halfEdges[iHalfEdge].edge;
+      if (!edge.b || !edge.a) halfEdges.splice(iHalfEdge, 1);
+    }
+    halfEdges.sort(d3_geom_voronoiHalfEdgeOrder);
+    return halfEdges.length;
+  };
+  function d3_geom_voronoiCloseCells(extent) {
+    var x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], x2, y2, x3, y3, cells = d3_geom_voronoiCells, iCell = cells.length, cell, iHalfEdge, halfEdges, nHalfEdges, start, end;
+    while (iCell--) {
+      cell = cells[iCell];
+      if (!cell || !cell.prepare()) continue;
+      halfEdges = cell.edges;
+      nHalfEdges = halfEdges.length;
+      iHalfEdge = 0;
+      while (iHalfEdge < nHalfEdges) {
+        end = halfEdges[iHalfEdge].end(), x3 = end.x, y3 = end.y;
+        start = halfEdges[++iHalfEdge % nHalfEdges].start(), x2 = start.x, y2 = start.y;
+        if (abs(x3 - x2) > ε || abs(y3 - y2) > ε) {
+          halfEdges.splice(iHalfEdge, 0, new d3_geom_voronoiHalfEdge(d3_geom_voronoiCreateBorderEdge(cell.site, end, abs(x3 - x0) < ε && y1 - y3 > ε ? {
+            x: x0,
+            y: abs(x2 - x0) < ε ? y2 : y1
+          } : abs(y3 - y1) < ε && x1 - x3 > ε ? {
+            x: abs(y2 - y1) < ε ? x2 : x1,
+            y: y1
+          } : abs(x3 - x1) < ε && y3 - y0 > ε ? {
+            x: x1,
+            y: abs(x2 - x1) < ε ? y2 : y0
+          } : abs(y3 - y0) < ε && x3 - x0 > ε ? {
+            x: abs(y2 - y0) < ε ? x2 : x0,
+            y: y0
+          } : null), cell.site, null));
+          ++nHalfEdges;
+        }
+      }
+    }
+  }
+  function d3_geom_voronoiHalfEdgeOrder(a, b) {
+    return b.angle - a.angle;
+  }
+  function d3_geom_voronoiCircle() {
+    d3_geom_voronoiRedBlackNode(this);
+    this.x = this.y = this.arc = this.site = this.cy = null;
+  }
+  function d3_geom_voronoiAttachCircle(arc) {
+    var lArc = arc.P, rArc = arc.N;
+    if (!lArc || !rArc) return;
+    var lSite = lArc.site, cSite = arc.site, rSite = rArc.site;
+    if (lSite === rSite) return;
+    var bx = cSite.x, by = cSite.y, ax = lSite.x - bx, ay = lSite.y - by, cx = rSite.x - bx, cy = rSite.y - by;
+    var d = 2 * (ax * cy - ay * cx);
+    if (d >= -ε2) return;
+    var ha = ax * ax + ay * ay, hc = cx * cx + cy * cy, x = (cy * ha - ay * hc) / d, y = (ax * hc - cx * ha) / d, cy = y + by;
+    var circle = d3_geom_voronoiCirclePool.pop() || new d3_geom_voronoiCircle();
+    circle.arc = arc;
+    circle.site = cSite;
+    circle.x = x + bx;
+    circle.y = cy + Math.sqrt(x * x + y * y);
+    circle.cy = cy;
+    arc.circle = circle;
+    var before = null, node = d3_geom_voronoiCircles._;
+    while (node) {
+      if (circle.y < node.y || circle.y === node.y && circle.x <= node.x) {
+        if (node.L) node = node.L; else {
+          before = node.P;
+          break;
+        }
+      } else {
+        if (node.R) node = node.R; else {
+          before = node;
+          break;
+        }
+      }
+    }
+    d3_geom_voronoiCircles.insert(before, circle);
+    if (!before) d3_geom_voronoiFirstCircle = circle;
+  }
+  function d3_geom_voronoiDetachCircle(arc) {
+    var circle = arc.circle;
+    if (circle) {
+      if (!circle.P) d3_geom_voronoiFirstCircle = circle.N;
+      d3_geom_voronoiCircles.remove(circle);
+      d3_geom_voronoiCirclePool.push(circle);
+      d3_geom_voronoiRedBlackNode(circle);
+      arc.circle = null;
+    }
+  }
+  function d3_geom_voronoiClipEdges(extent) {
+    var edges = d3_geom_voronoiEdges, clip = d3_geom_clipLine(extent[0][0], extent[0][1], extent[1][0], extent[1][1]), i = edges.length, e;
+    while (i--) {
+      e = edges[i];
+      if (!d3_geom_voronoiConnectEdge(e, extent) || !clip(e) || abs(e.a.x - e.b.x) < ε && abs(e.a.y - e.b.y) < ε) {
+        e.a = e.b = null;
+        edges.splice(i, 1);
+      }
+    }
+  }
+  function d3_geom_voronoiConnectEdge(edge, extent) {
+    var vb = edge.b;
+    if (vb) return true;
+    var va = edge.a, x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], lSite = edge.l, rSite = edge.r, lx = lSite.x, ly = lSite.y, rx = rSite.x, ry = rSite.y, fx = (lx + rx) / 2, fy = (ly + ry) / 2, fm, fb;
+    if (ry === ly) {
+      if (fx < x0 || fx >= x1) return;
+      if (lx > rx) {
+        if (!va) va = {
+          x: fx,
+          y: y0
+        }; else if (va.y >= y1) return;
+        vb = {
+          x: fx,
+          y: y1
+        };
+      } else {
+        if (!va) va = {
+          x: fx,
+          y: y1
+        }; else if (va.y < y0) return;
+        vb = {
+          x: fx,
+          y: y0
+        };
+      }
+    } else {
+      fm = (lx - rx) / (ry - ly);
+      fb = fy - fm * fx;
+      if (fm < -1 || fm > 1) {
+        if (lx > rx) {
+          if (!va) va = {
+            x: (y0 - fb) / fm,
+            y: y0
+          }; else if (va.y >= y1) return;
+          vb = {
+            x: (y1 - fb) / fm,
+            y: y1
+          };
+        } else {
+          if (!va) va = {
+            x: (y1 - fb) / fm,
+            y: y1
+          }; else if (va.y < y0) return;
+          vb = {
+            x: (y0 - fb) / fm,
+            y: y0
+          };
+        }
+      } else {
+        if (ly < ry) {
+          if (!va) va = {
+            x: x0,
+            y: fm * x0 + fb
+          }; else if (va.x >= x1) return;
+          vb = {
+            x: x1,
+            y: fm * x1 + fb
+          };
+        } else {
+          if (!va) va = {
+            x: x1,
+            y: fm * x1 + fb
+          }; else if (va.x < x0) return;
+          vb = {
+            x: x0,
+            y: fm * x0 + fb
+          };
+        }
+      }
+    }
+    edge.a = va;
+    edge.b = vb;
+    return true;
+  }
+  function d3_geom_voronoiEdge(lSite, rSite) {
+    this.l = lSite;
+    this.r = rSite;
+    this.a = this.b = null;
+  }
+  function d3_geom_voronoiCreateEdge(lSite, rSite, va, vb) {
+    var edge = new d3_geom_voronoiEdge(lSite, rSite);
+    d3_geom_voronoiEdges.push(edge);
+    if (va) d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, va);
+    if (vb) d3_geom_voronoiSetEdgeEnd(edge, rSite, lSite, vb);
+    d3_geom_voronoiCells[lSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, lSite, rSite));
+    d3_geom_voronoiCells[rSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, rSite, lSite));
+    return edge;
+  }
+  function d3_geom_voronoiCreateBorderEdge(lSite, va, vb) {
+    var edge = new d3_geom_voronoiEdge(lSite, null);
+    edge.a = va;
+    edge.b = vb;
+    d3_geom_voronoiEdges.push(edge);
+    return edge;
+  }
+  function d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, vertex) {
+    if (!edge.a && !edge.b) {
+      edge.a = vertex;
+      edge.l = lSite;
+      edge.r = rSite;
+    } else if (edge.l === rSite) {
+      edge.b = vertex;
+    } else {
+      edge.a = vertex;
+    }
+  }
+  function d3_geom_voronoiHalfEdge(edge, lSite, rSite) {
+    var va = edge.a, vb = edge.b;
+    this.edge = edge;
+    this.site = lSite;
+    this.angle = rSite ? Math.atan2(rSite.y - lSite.y, rSite.x - lSite.x) : edge.l === lSite ? Math.atan2(vb.x - va.x, va.y - vb.y) : Math.atan2(va.x - vb.x, vb.y - va.y);
+  }
+  d3_geom_voronoiHalfEdge.prototype = {
+    start: function() {
+      return this.edge.l === this.site ? this.edge.a : this.edge.b;
+    },
+    end: function() {
+      return this.edge.l === this.site ? this.edge.b : this.edge.a;
+    }
+  };
+  function d3_geom_voronoiRedBlackTree() {
+    this._ = null;
+  }
+  function d3_geom_voronoiRedBlackNode(node) {
+    node.U = node.C = node.L = node.R = node.P = node.N = null;
+  }
+  d3_geom_voronoiRedBlackTree.prototype = {
+    insert: function(after, node) {
+      var parent, grandpa, uncle;
+      if (after) {
+        node.P = after;
+        node.N = after.N;
+        if (after.N) after.N.P = node;
+        after.N = node;
+        if (after.R) {
+          after = after.R;
+          while (after.L) after = after.L;
+          after.L = node;
+        } else {
+          after.R = node;
+        }
+        parent = after;
+      } else if (this._) {
+        after = d3_geom_voronoiRedBlackFirst(this._);
+        node.P = null;
+        node.N = after;
+        after.P = after.L = node;
+        parent = after;
+      } else {
+        node.P = node.N = null;
+        this._ = node;
+        parent = null;
+      }
+      node.L = node.R = null;
+      node.U = parent;
+      node.C = true;
+      after = node;
+      while (parent && parent.C) {
+        grandpa = parent.U;
+        if (parent === grandpa.L) {
+          uncle = grandpa.R;
+          if (uncle && uncle.C) {
+            parent.C = uncle.C = false;
+            grandpa.C = true;
+            after = grandpa;
+          } else {
+            if (after === parent.R) {
+              d3_geom_voronoiRedBlackRotateLeft(this, parent);
+              after = parent;
+              parent = after.U;
+            }
+            parent.C = false;
+            grandpa.C = true;
+            d3_geom_voronoiRedBlackRotateRight(this, grandpa);
+          }
+        } else {
+          uncle = grandpa.L;
+          if (uncle && uncle.C) {
+            parent.C = uncle.C = false;
+            grandpa.C = true;
+            after = grandpa;
+          } else {
+            if (after === parent.L) {
+              d3_geom_voronoiRedBlackRotateRight(this, parent);
+              after = parent;
+              parent = after.U;
+            }
+            parent.C = false;
+            grandpa.C = true;
+            d3_geom_voronoiRedBlackRotateLeft(this, grandpa);
+          }
+        }
+        parent = after.U;
+      }
+      this._.C = false;
+    },
+    remove: function(node) {
+      if (node.N) node.N.P = node.P;
+      if (node.P) node.P.N = node.N;
+      node.N = node.P = null;
+      var parent = node.U, sibling, left = node.L, right = node.R, next, red;
+      if (!left) next = right; else if (!right) next = left; else next = d3_geom_voronoiRedBlackFirst(right);
+      if (parent) {
+        if (parent.L === node) parent.L = next; else parent.R = next;
+      } else {
+        this._ = next;
+      }
+      if (left && right) {
+        red = next.C;
+        next.C = node.C;
+        next.L = left;
+        left.U = next;
+        if (next !== right) {
+          parent = next.U;
+          next.U = node.U;
+          node = next.R;
+          parent.L = node;
+          next.R = right;
+          right.U = next;
+        } else {
+          next.U = parent;
+          parent = next;
+          node = next.R;
+        }
+      } else {
+        red = node.C;
+        node = next;
+      }
+      if (node) node.U = parent;
+      if (red) return;
+      if (node && node.C) {
+        node.C = false;
+        return;
+      }
+      do {
+        if (node === this._) break;
+        if (node === parent.L) {
+          sibling = parent.R;
+          if (sibling.C) {
+            sibling.C = false;
+            parent.C = true;
+            d3_geom_voronoiRedBlackRotateLeft(this, parent);
+            sibling = parent.R;
+          }
+          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
+            if (!sibling.R || !sibling.R.C) {
+              sibling.L.C = false;
+              sibling.C = true;
+              d3_geom_voronoiRedBlackRotateRight(this, sibling);
+              sibling = parent.R;
+            }
+            sibling.C = parent.C;
+            parent.C = sibling.R.C = false;
+            d3_geom_voronoiRedBlackRotateLeft(this, parent);
+            node = this._;
+            break;
+          }
+        } else {
+          sibling = parent.L;
+          if (sibling.C) {
+            sibling.C = false;
+            parent.C = true;
+            d3_geom_voronoiRedBlackRotateRight(this, parent);
+            sibling = parent.L;
+          }
+          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
+            if (!sibling.L || !sibling.L.C) {
+              sibling.R.C = false;
+              sibling.C = true;
+              d3_geom_voronoiRedBlackRotateLeft(this, sibling);
+              sibling = parent.L;
+            }
+            sibling.C = parent.C;
+            parent.C = sibling.L.C = false;
+            d3_geom_voronoiRedBlackRotateRight(this, parent);
+            node = this._;
+            break;
+          }
+        }
+        sibling.C = true;
+        node = parent;
+        parent = parent.U;
+      } while (!node.C);
+      if (node) node.C = false;
+    }
+  };
+  function d3_geom_voronoiRedBlackRotateLeft(tree, node) {
+    var p = node, q = node.R, parent = p.U;
+    if (parent) {
+      if (parent.L === p) parent.L = q; else parent.R = q;
+    } else {
+      tree._ = q;
+    }
+    q.U = parent;
+    p.U = q;
+    p.R = q.L;
+    if (p.R) p.R.U = p;
+    q.L = p;
+  }
+  function d3_geom_voronoiRedBlackRotateRight(tree, node) {
+    var p = node, q = node.L, parent = p.U;
+    if (parent) {
+      if (parent.L === p) parent.L = q; else parent.R = q;
+    } else {
+      tree._ = q;
+    }
+    q.U = parent;
+    p.U = q;
+    p.L = q.R;
+    if (p.L) p.L.U = p;
+    q.R = p;
+  }
+  function d3_geom_voronoiRedBlackFirst(node) {
+    while (node.L) node = node.L;
+    return node;
+  }
+  function d3_geom_voronoi(sites, bbox) {
+    var site = sites.sort(d3_geom_voronoiVertexOrder).pop(), x0, y0, circle;
+    d3_geom_voronoiEdges = [];
+    d3_geom_voronoiCells = new Array(sites.length);
+    d3_geom_voronoiBeaches = new d3_geom_voronoiRedBlackTree();
+    d3_geom_voronoiCircles = new d3_geom_voronoiRedBlackTree();
+    while (true) {
+      circle = d3_geom_voronoiFirstCircle;
+      if (site && (!circle || site.y < circle.y || site.y === circle.y && site.x < circle.x)) {
+        if (site.x !== x0 || site.y !== y0) {
+          d3_geom_voronoiCells[site.i] = new d3_geom_voronoiCell(site);
+          d3_geom_voronoiAddBeach(site);
+          x0 = site.x, y0 = site.y;
+        }
+        site = sites.pop();
+      } else if (circle) {
+        d3_geom_voronoiRemoveBeach(circle.arc);
+      } else {
+        break;
+      }
+    }
+    if (bbox) d3_geom_voronoiClipEdges(bbox), d3_geom_voronoiCloseCells(bbox);
+    var diagram = {
+      cells: d3_geom_voronoiCells,
+      edges: d3_geom_voronoiEdges
+    };
+    d3_geom_voronoiBeaches = d3_geom_voronoiCircles = d3_geom_voronoiEdges = d3_geom_voronoiCells = null;
+    return diagram;
+  }
+  function d3_geom_voronoiVertexOrder(a, b) {
+    return b.y - a.y || b.x - a.x;
+  }
+  d3.geom.voronoi = function(points) {
+    var x = d3_geom_pointX, y = d3_geom_pointY, fx = x, fy = y, clipExtent = d3_geom_voronoiClipExtent;
+    if (points) return voronoi(points);
+    function voronoi(data) {
+      var polygons = new Array(data.length), x0 = clipExtent[0][0], y0 = clipExtent[0][1], x1 = clipExtent[1][0], y1 = clipExtent[1][1];
+      d3_geom_voronoi(sites(data), clipExtent).cells.forEach(function(cell, i) {
+        var edges = cell.edges, site = cell.site, polygon = polygons[i] = edges.length ? edges.map(function(e) {
+          var s = e.start();
+          return [ s.x, s.y ];
+        }) : site.x >= x0 && site.x <= x1 && site.y >= y0 && site.y <= y1 ? [ [ x0, y1 ], [ x1, y1 ], [ x1, y0 ], [ x0, y0 ] ] : [];
+        polygon.point = data[i];
+      });
+      return polygons;
+    }
+    function sites(data) {
+      return data.map(function(d, i) {
+        return {
+          x: Math.round(fx(d, i) / ε) * ε,
+          y: Math.round(fy(d, i) / ε) * ε,
+          i: i
+        };
+      });
+    }
+    voronoi.links = function(data) {
+      return d3_geom_voronoi(sites(data)).edges.filter(function(edge) {
+        return edge.l && edge.r;
+      }).map(function(edge) {
+        return {
+          source: data[edge.l.i],
+          target: data[edge.r.i]
+        };
+      });
+    };
+    voronoi.triangles = function(data) {
+      var triangles = [];
+      d3_geom_voronoi(sites(data)).cells.forEach(function(cell, i) {
+        var site = cell.site, edges = cell.edges.sort(d3_geom_voronoiHalfEdgeOrder), j = -1, m = edges.length, e0, s0, e1 = edges[m - 1].edge, s1 = e1.l === site ? e1.r : e1.l;
+        while (++j < m) {
+          e0 = e1;
+          s0 = s1;
+          e1 = edges[j].edge;
+          s1 = e1.l === site ? e1.r : e1.l;
+          if (i < s0.i && i < s1.i && d3_geom_voronoiTriangleArea(site, s0, s1) < 0) {
+            triangles.push([ data[i], data[s0.i], data[s1.i] ]);
+          }
+        }
+      });
+      return triangles;
+    };
+    voronoi.x = function(_) {
+      return arguments.length ? (fx = d3_functor(x = _), voronoi) : x;
+    };
+    voronoi.y = function(_) {
+      return arguments.length ? (fy = d3_functor(y = _), voronoi) : y;
+    };
+    voronoi.clipExtent = function(_) {
+      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent;
+      clipExtent = _ == null ? d3_geom_voronoiClipExtent : _;
+      return voronoi;
+    };
+    voronoi.size = function(_) {
+      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent && clipExtent[1];
+      return voronoi.clipExtent(_ && [ [ 0, 0 ], _ ]);
+    };
+    return voronoi;
+  };
+  var d3_geom_voronoiClipExtent = [ [ -1e6, -1e6 ], [ 1e6, 1e6 ] ];
+  function d3_geom_voronoiTriangleArea(a, b, c) {
+    return (a.x - c.x) * (b.y - a.y) - (a.x - b.x) * (c.y - a.y);
+  }
+  d3.geom.delaunay = function(vertices) {
+    return d3.geom.voronoi().triangles(vertices);
+  };
+  d3.geom.quadtree = function(points, x1, y1, x2, y2) {
+    var x = d3_geom_pointX, y = d3_geom_pointY, compat;
+    if (compat = arguments.length) {
+      x = d3_geom_quadtreeCompatX;
+      y = d3_geom_quadtreeCompatY;
+      if (compat === 3) {
+        y2 = y1;
+        x2 = x1;
+        y1 = x1 = 0;
+      }
+      return quadtree(points);
+    }
+    function quadtree(data) {
+      var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_;
+      if (x1 != null) {
+        x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2;
+      } else {
+        x2_ = y2_ = -(x1_ = y1_ = Infinity);
+        xs = [], ys = [];
+        n = data.length;
+        if (compat) for (i = 0; i < n; ++i) {
+          d = data[i];
+          if (d.x < x1_) x1_ = d.x;
+          if (d.y < y1_) y1_ = d.y;
+          if (d.x > x2_) x2_ = d.x;
+          if (d.y > y2_) y2_ = d.y;
+          xs.push(d.x);
+          ys.push(d.y);
+        } else for (i = 0; i < n; ++i) {
+          var x_ = +fx(d = data[i], i), y_ = +fy(d, i);
+          if (x_ < x1_) x1_ = x_;
+          if (y_ < y1_) y1_ = y_;
+          if (x_ > x2_) x2_ = x_;
+          if (y_ > y2_) y2_ = y_;
+          xs.push(x_);
+          ys.push(y_);
+        }
+      }
+      var dx = x2_ - x1_, dy = y2_ - y1_;
+      if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy;
+      function insert(n, d, x, y, x1, y1, x2, y2) {
+        if (isNaN(x) || isNaN(y)) return;
+        if (n.leaf) {
+          var nx = n.x, ny = n.y;
+          if (nx != null) {
+            if (abs(nx - x) + abs(ny - y) < .01) {
+              insertChild(n, d, x, y, x1, y1, x2, y2);
+            } else {
+              var nPoint = n.point;
+              n.x = n.y = n.point = null;
+              insertChild(n, nPoint, nx, ny, x1, y1, x2, y2);
+              insertChild(n, d, x, y, x1, y1, x2, y2);
+            }
+          } else {
+            n.x = x, n.y = y, n.point = d;
+          }
+        } else {
+          insertChild(n, d, x, y, x1, y1, x2, y2);
+        }
+      }
+      function insertChild(n, d, x, y, x1, y1, x2, y2) {
+        var xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym, i = below << 1 | right;
+        n.leaf = false;
+        n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
+        if (right) x1 = xm; else x2 = xm;
+        if (below) y1 = ym; else y2 = ym;
+        insert(n, d, x, y, x1, y1, x2, y2);
+      }
+      var root = d3_geom_quadtreeNode();
+      root.add = function(d) {
+        insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_);
+      };
+      root.visit = function(f) {
+        d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_);
+      };
+      root.find = function(point) {
+        return d3_geom_quadtreeFind(root, point[0], point[1], x1_, y1_, x2_, y2_);
+      };
+      i = -1;
+      if (x1 == null) {
+        while (++i < n) {
+          insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_);
+        }
+        --i;
+      } else data.forEach(root.add);
+      xs = ys = data = d = null;
+      return root;
+    }
+    quadtree.x = function(_) {
+      return arguments.length ? (x = _, quadtree) : x;
+    };
+    quadtree.y = function(_) {
+      return arguments.length ? (y = _, quadtree) : y;
+    };
+    quadtree.extent = function(_) {
+      if (!arguments.length) return x1 == null ? null : [ [ x1, y1 ], [ x2, y2 ] ];
+      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = +_[0][0], y1 = +_[0][1], x2 = +_[1][0], 
+      y2 = +_[1][1];
+      return quadtree;
+    };
+    quadtree.size = function(_) {
+      if (!arguments.length) return x1 == null ? null : [ x2 - x1, y2 - y1 ];
+      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = y1 = 0, x2 = +_[0], y2 = +_[1];
+      return quadtree;
+    };
+    return quadtree;
+  };
+  function d3_geom_quadtreeCompatX(d) {
+    return d.x;
+  }
+  function d3_geom_quadtreeCompatY(d) {
+    return d.y;
+  }
+  function d3_geom_quadtreeNode() {
+    return {
+      leaf: true,
+      nodes: [],
+      point: null,
+      x: null,
+      y: null
+    };
+  }
+  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
+    if (!f(node, x1, y1, x2, y2)) {
+      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;
+      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
+      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
+      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
+      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
+    }
+  }
+  function d3_geom_quadtreeFind(root, x, y, x0, y0, x3, y3) {
+    var minDistance2 = Infinity, closestPoint;
+    (function find(node, x1, y1, x2, y2) {
+      if (x1 > x3 || y1 > y3 || x2 < x0 || y2 < y0) return;
+      if (point = node.point) {
+        var point, dx = x - node.x, dy = y - node.y, distance2 = dx * dx + dy * dy;
+        if (distance2 < minDistance2) {
+          var distance = Math.sqrt(minDistance2 = distance2);
+          x0 = x - distance, y0 = y - distance;
+          x3 = x + distance, y3 = y + distance;
+          closestPoint = point;
+        }
+      }
+      var children = node.nodes, xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym;
+      for (var i = below << 1 | right, j = i + 4; i < j; ++i) {
+        if (node = children[i & 3]) switch (i & 3) {
+         case 0:
+          find(node, x1, y1, xm, ym);
+          break;
+
+         case 1:
+          find(node, xm, y1, x2, ym);
+          break;
+
+         case 2:
+          find(node, x1, ym, xm, y2);
+          break;
+
+         case 3:
+          find(node, xm, ym, x2, y2);
+          break;
+        }
+      }
+    })(root, x0, y0, x3, y3);
+    return closestPoint;
+  }
+  d3.interpolateRgb = d3_interpolateRgb;
+  function d3_interpolateRgb(a, b) {
+    a = d3.rgb(a);
+    b = d3.rgb(b);
+    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;
+    return function(t) {
+      return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));
+    };
+  }
+  d3.interpolateObject = d3_interpolateObject;
+  function d3_interpolateObject(a, b) {
+    var i = {}, c = {}, k;
+    for (k in a) {
+      if (k in b) {
+        i[k] = d3_interpolate(a[k], b[k]);
+      } else {
+        c[k] = a[k];
+      }
+    }
+    for (k in b) {
+      if (!(k in a)) {
+        c[k] = b[k];
+      }
+    }
+    return function(t) {
+      for (k in i) c[k] = i[k](t);
+      return c;
+    };
+  }
+  d3.interpolateNumber = d3_interpolateNumber;
+  function d3_interpolateNumber(a, b) {
+    a = +a, b = +b;
+    return function(t) {
+      return a * (1 - t) + b * t;
+    };
+  }
+  d3.interpolateString = d3_interpolateString;
+  function d3_interpolateString(a, b) {
+    var bi = d3_interpolate_numberA.lastIndex = d3_interpolate_numberB.lastIndex = 0, am, bm, bs, i = -1, s = [], q = [];
+    a = a + "", b = b + "";
+    while ((am = d3_interpolate_numberA.exec(a)) && (bm = d3_interpolate_numberB.exec(b))) {
+      if ((bs = bm.index) > bi) {
+        bs = b.slice(bi, bs);
+        if (s[i]) s[i] += bs; else s[++i] = bs;
+      }
+      if ((am = am[0]) === (bm = bm[0])) {
+        if (s[i]) s[i] += bm; else s[++i] = bm;
+      } else {
+        s[++i] = null;
+        q.push({
+          i: i,
+          x: d3_interpolateNumber(am, bm)
+        });
+      }
+      bi = d3_interpolate_numberB.lastIndex;
+    }
+    if (bi < b.length) {
+      bs = b.slice(bi);
+      if (s[i]) s[i] += bs; else s[++i] = bs;
+    }
+    return s.length < 2 ? q[0] ? (b = q[0].x, function(t) {
+      return b(t) + "";
+    }) : function() {
+      return b;
+    } : (b = q.length, function(t) {
+      for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
+      return s.join("");
+    });
+  }
+  var d3_interpolate_numberA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, d3_interpolate_numberB = new RegExp(d3_interpolate_numberA.source, "g");
+  d3.interpolate = d3_interpolate;
+  function d3_interpolate(a, b) {
+    var i = d3.interpolators.length, f;
+    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
+    return f;
+  }
+  d3.interpolators = [ function(a, b) {
+    var t = typeof b;
+    return (t === "string" ? d3_rgb_names.has(b.toLowerCase()) || /^(#|rgb\(|hsl\()/i.test(b) ? d3_interpolateRgb : d3_interpolateString : b instanceof d3_color ? d3_interpolateRgb : Array.isArray(b) ? d3_interpolateArray : t === "object" && isNaN(b) ? d3_interpolateObject : d3_interpolateNumber)(a, b);
+  } ];
+  d3.interpolateArray = d3_interpolateArray;
+  function d3_interpolateArray(a, b) {
+    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;
+    for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i]));
+    for (;i < na; ++i) c[i] = a[i];
+    for (;i < nb; ++i) c[i] = b[i];
+    return function(t) {
+      for (i = 0; i < n0; ++i) c[i] = x[i](t);
+      return c;
+    };
+  }
+  var d3_ease_default = function() {
+    return d3_identity;
+  };
+  var d3_ease = d3.map({
+    linear: d3_ease_default,
+    poly: d3_ease_poly,
+    quad: function() {
+      return d3_ease_quad;
+    },
+    cubic: function() {
+      return d3_ease_cubic;
+    },
+    sin: function() {
+      return d3_ease_sin;
+    },
+    exp: function() {
+      return d3_ease_exp;
+    },
+    circle: function() {
+      return d3_ease_circle;
+    },
+    elastic: d3_ease_elastic,
+    back: d3_ease_back,
+    bounce: function() {
+      return d3_ease_bounce;
+    }
+  });
+  var d3_ease_mode = d3.map({
+    "in": d3_identity,
+    out: d3_ease_reverse,
+    "in-out": d3_ease_reflect,
+    "out-in": function(f) {
+      return d3_ease_reflect(d3_ease_reverse(f));
+    }
+  });
+  d3.ease = function(name) {
+    var i = name.indexOf("-"), t = i >= 0 ? name.slice(0, i) : name, m = i >= 0 ? name.slice(i + 1) : "in";
+    t = d3_ease.get(t) || d3_ease_default;
+    m = d3_ease_mode.get(m) || d3_identity;
+    return d3_ease_clamp(m(t.apply(null, d3_arraySlice.call(arguments, 1))));
+  };
+  function d3_ease_clamp(f) {
+    return function(t) {
+      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
+    };
+  }
+  function d3_ease_reverse(f) {
+    return function(t) {
+      return 1 - f(1 - t);
+    };
+  }
+  function d3_ease_reflect(f) {
+    return function(t) {
+      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));
+    };
+  }
+  function d3_ease_quad(t) {
+    return t * t;
+  }
+  function d3_ease_cubic(t) {
+    return t * t * t;
+  }
+  function d3_ease_cubicInOut(t) {
+    if (t <= 0) return 0;
+    if (t >= 1) return 1;
+    var t2 = t * t, t3 = t2 * t;
+    return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75);
+  }
+  function d3_ease_poly(e) {
+    return function(t) {
+      return Math.pow(t, e);
+    };
+  }
+  function d3_ease_sin(t) {
+    return 1 - Math.cos(t * halfπ);
+  }
+  function d3_ease_exp(t) {
+    return Math.pow(2, 10 * (t - 1));
+  }
+  function d3_ease_circle(t) {
+    return 1 - Math.sqrt(1 - t * t);
+  }
+  function d3_ease_elastic(a, p) {
+    var s;
+    if (arguments.length < 2) p = .45;
+    if (arguments.length) s = p / τ * Math.asin(1 / a); else a = 1, s = p / 4;
+    return function(t) {
+      return 1 + a * Math.pow(2, -10 * t) * Math.sin((t - s) * τ / p);
+    };
+  }
+  function d3_ease_back(s) {
+    if (!s) s = 1.70158;
+    return function(t) {
+      return t * t * ((s + 1) * t - s);
+    };
+  }
+  function d3_ease_bounce(t) {
+    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
+  }
+  d3.interpolateHcl = d3_interpolateHcl;
+  function d3_interpolateHcl(a, b) {
+    a = d3.hcl(a);
+    b = d3.hcl(b);
+    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;
+    if (isNaN(bc)) bc = 0, ac = isNaN(ac) ? b.c : ac;
+    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
+    return function(t) {
+      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";
+    };
+  }
+  d3.interpolateHsl = d3_interpolateHsl;
+  function d3_interpolateHsl(a, b) {
+    a = d3.hsl(a);
+    b = d3.hsl(b);
+    var ah = a.h, as = a.s, al = a.l, bh = b.h - ah, bs = b.s - as, bl = b.l - al;
+    if (isNaN(bs)) bs = 0, as = isNaN(as) ? b.s : as;
+    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
+    return function(t) {
+      return d3_hsl_rgb(ah + bh * t, as + bs * t, al + bl * t) + "";
+    };
+  }
+  d3.interpolateLab = d3_interpolateLab;
+  function d3_interpolateLab(a, b) {
+    a = d3.lab(a);
+    b = d3.lab(b);
+    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;
+    return function(t) {
+      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";
+    };
+  }
+  d3.interpolateRound = d3_interpolateRound;
+  function d3_interpolateRound(a, b) {
+    b -= a;
+    return function(t) {
+      return Math.round(a + b * t);
+    };
+  }
+  d3.transform = function(string) {
+    var g = d3_document.createElementNS(d3.ns.prefix.svg, "g");
+    return (d3.transform = function(string) {
+      if (string != null) {
+        g.setAttribute("transform", string);
+        var t = g.transform.baseVal.consolidate();
+      }
+      return new d3_transform(t ? t.matrix : d3_transformIdentity);
+    })(string);
+  };
+  function d3_transform(m) {
+    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
+    if (r0[0] * r1[1] < r1[0] * r0[1]) {
+      r0[0] *= -1;
+      r0[1] *= -1;
+      kx *= -1;
+      kz *= -1;
+    }
+    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees;
+    this.translate = [ m.e, m.f ];
+    this.scale = [ kx, ky ];
+    this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0;
+  }
+  d3_transform.prototype.toString = function() {
+    return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
+  };
+  function d3_transformDot(a, b) {
+    return a[0] * b[0] + a[1] * b[1];
+  }
+  function d3_transformNormalize(a) {
+    var k = Math.sqrt(d3_transformDot(a, a));
+    if (k) {
+      a[0] /= k;
+      a[1] /= k;
+    }
+    return k;
+  }
+  function d3_transformCombine(a, b, k) {
+    a[0] += k * b[0];
+    a[1] += k * b[1];
+    return a;
+  }
+  var d3_transformIdentity = {
+    a: 1,
+    b: 0,
+    c: 0,
+    d: 1,
+    e: 0,
+    f: 0
+  };
+  d3.interpolateTransform = d3_interpolateTransform;
+  function d3_interpolateTransformPop(s) {
+    return s.length ? s.pop() + "," : "";
+  }
+  function d3_interpolateTranslate(ta, tb, s, q) {
+    if (ta[0] !== tb[0] || ta[1] !== tb[1]) {
+      var i = s.push("translate(", null, ",", null, ")");
+      q.push({
+        i: i - 4,
+        x: d3_interpolateNumber(ta[0], tb[0])
+      }, {
+        i: i - 2,
+        x: d3_interpolateNumber(ta[1], tb[1])
+      });
+    } else if (tb[0] || tb[1]) {
+      s.push("translate(" + tb + ")");
+    }
+  }
+  function d3_interpolateRotate(ra, rb, s, q) {
+    if (ra !== rb) {
+      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;
+      q.push({
+        i: s.push(d3_interpolateTransformPop(s) + "rotate(", null, ")") - 2,
+        x: d3_interpolateNumber(ra, rb)
+      });
+    } else if (rb) {
+      s.push(d3_interpolateTransformPop(s) + "rotate(" + rb + ")");
+    }
+  }
+  function d3_interpolateSkew(wa, wb, s, q) {
+    if (wa !== wb) {
+      q.push({
+        i: s.push(d3_interpolateTransformPop(s) + "skewX(", null, ")") - 2,
+        x: d3_interpolateNumber(wa, wb)
+      });
+    } else if (wb) {
+      s.push(d3_interpolateTransformPop(s) + "skewX(" + wb + ")");
+    }
+  }
+  function d3_interpolateScale(ka, kb, s, q) {
+    if (ka[0] !== kb[0] || ka[1] !== kb[1]) {
+      var i = s.push(d3_interpolateTransformPop(s) + "scale(", null, ",", null, ")");
+      q.push({
+        i: i - 4,
+        x: d3_interpolateNumber(ka[0], kb[0])
+      }, {
+        i: i - 2,
+        x: d3_interpolateNumber(ka[1], kb[1])
+      });
+    } else if (kb[0] !== 1 || kb[1] !== 1) {
+      s.push(d3_interpolateTransformPop(s) + "scale(" + kb + ")");
+    }
+  }
+  function d3_interpolateTransform(a, b) {
+    var s = [], q = [];
+    a = d3.transform(a), b = d3.transform(b);
+    d3_interpolateTranslate(a.translate, b.translate, s, q);
+    d3_interpolateRotate(a.rotate, b.rotate, s, q);
+    d3_interpolateSkew(a.skew, b.skew, s, q);
+    d3_interpolateScale(a.scale, b.scale, s, q);
+    a = b = null;
+    return function(t) {
+      var i = -1, n = q.length, o;
+      while (++i < n) s[(o = q[i]).i] = o.x(t);
+      return s.join("");
+    };
+  }
+  function d3_uninterpolateNumber(a, b) {
+    b = (b -= a = +a) || 1 / b;
+    return function(x) {
+      return (x - a) / b;
+    };
+  }
+  function d3_uninterpolateClamp(a, b) {
+    b = (b -= a = +a) || 1 / b;
+    return function(x) {
+      return Math.max(0, Math.min(1, (x - a) / b));
+    };
+  }
+  d3.layout = {};
+  d3.layout.bundle = function() {
+    return function(links) {
+      var paths = [], i = -1, n = links.length;
+      while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
+      return paths;
+    };
+  };
+  function d3_layout_bundlePath(link) {
+    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];
+    while (start !== lca) {
+      start = start.parent;
+      points.push(start);
+    }
+    var k = points.length;
+    while (end !== lca) {
+      points.splice(k, 0, end);
+      end = end.parent;
+    }
+    return points;
+  }
+  function d3_layout_bundleAncestors(node) {
+    var ancestors = [], parent = node.parent;
+    while (parent != null) {
+      ancestors.push(node);
+      node = parent;
+      parent = parent.parent;
+    }
+    ancestors.push(node);
+    return ancestors;
+  }
+  function d3_layout_bundleLeastCommonAncestor(a, b) {
+    if (a === b) return a;
+    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;
+    while (aNode === bNode) {
+      sharedNode = aNode;
+      aNode = aNodes.pop();
+      bNode = bNodes.pop();
+    }
+    return sharedNode;
+  }
+  d3.layout.chord = function() {
+    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
+    function relayout() {
+      var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;
+      chords = [];
+      groups = [];
+      k = 0, i = -1;
+      while (++i < n) {
+        x = 0, j = -1;
+        while (++j < n) {
+          x += matrix[i][j];
+        }
+        groupSums.push(x);
+        subgroupIndex.push(d3.range(n));
+        k += x;
+      }
+      if (sortGroups) {
+        groupIndex.sort(function(a, b) {
+          return sortGroups(groupSums[a], groupSums[b]);
+        });
+      }
+      if (sortSubgroups) {
+        subgroupIndex.forEach(function(d, i) {
+          d.sort(function(a, b) {
+            return sortSubgroups(matrix[i][a], matrix[i][b]);
+          });
+        });
+      }
+      k = (τ - padding * n) / k;
+      x = 0, i = -1;
+      while (++i < n) {
+        x0 = x, j = -1;
+        while (++j < n) {
+          var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k;
+          subgroups[di + "-" + dj] = {
+            index: di,
+            subindex: dj,
+            startAngle: a0,
+            endAngle: a1,
+            value: v
+          };
+        }
+        groups[di] = {
+          index: di,
+          startAngle: x0,
+          endAngle: x,
+          value: groupSums[di]
+        };
+        x += padding;
+      }
+      i = -1;
+      while (++i < n) {
+        j = i - 1;
+        while (++j < n) {
+          var source = subgroups[i + "-" + j], target = subgroups[j + "-" + i];
+          if (source.value || target.value) {
+            chords.push(source.value < target.value ? {
+              source: target,
+              target: source
+            } : {
+              source: source,
+              target: target
+            });
+          }
+        }
+      }
+      if (sortChords) resort();
+    }
+    function resort() {
+      chords.sort(function(a, b) {
+        return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);
+      });
+    }
+    chord.matrix = function(x) {
+      if (!arguments.length) return matrix;
+      n = (matrix = x) && matrix.length;
+      chords = groups = null;
+      return chord;
+    };
+    chord.padding = function(x) {
+      if (!arguments.length) return padding;
+      padding = x;
+      chords = groups = null;
+      return chord;
+    };
+    chord.sortGroups = function(x) {
+      if (!arguments.length) return sortGroups;
+      sortGroups = x;
+      chords = groups = null;
+      return chord;
+    };
+    chord.sortSubgroups = function(x) {
+      if (!arguments.length) return sortSubgroups;
+      sortSubgroups = x;
+      chords = null;
+      return chord;
+    };
+    chord.sortChords = function(x) {
+      if (!arguments.length) return sortChords;
+      sortChords = x;
+      if (chords) resort();
+      return chord;
+    };
+    chord.chords = function() {
+      if (!chords) relayout();
+      return chords;
+    };
+    chord.groups = function() {
+      if (!groups) relayout();
+      return groups;
+    };
+    return chord;
+  };
+  d3.layout.force = function() {
+    var force = {}, event = d3.dispatch("start", "tick", "end"), timer, size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, chargeDistance2 = d3_layout_forceChargeDistance2, gravity = .1, theta2 = .64, nodes = [], links = [], distances, strengths, charges;
+    function repulse(node) {
+      return function(quad, x1, _, x2) {
+        if (quad.point !== node) {
+          var dx = quad.cx - node.x, dy = quad.cy - node.y, dw = x2 - x1, dn = dx * dx + dy * dy;
+          if (dw * dw / theta2 < dn) {
+            if (dn < chargeDistance2) {
+              var k = quad.charge / dn;
+              node.px -= dx * k;
+              node.py -= dy * k;
+            }
+            return true;
+          }
+          if (quad.point && dn && dn < chargeDistance2) {
+            var k = quad.pointCharge / dn;
+            node.px -= dx * k;
+            node.py -= dy * k;
+          }
+        }
+        return !quad.charge;
+      };
+    }
+    force.tick = function() {
+      if ((alpha *= .99) < .005) {
+        timer = null;
+        event.end({
+          type: "end",
+          alpha: alpha = 0
+        });
+        return true;
+      }
+      var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y;
+      for (i = 0; i < m; ++i) {
+        o = links[i];
+        s = o.source;
+        t = o.target;
+        x = t.x - s.x;
+        y = t.y - s.y;
+        if (l = x * x + y * y) {
+          l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
+          x *= l;
+          y *= l;
+          t.x -= x * (k = s.weight + t.weight ? s.weight / (s.weight + t.weight) : .5);
+          t.y -= y * k;
+          s.x += x * (k = 1 - k);
+          s.y += y * k;
+        }
+      }
+      if (k = alpha * gravity) {
+        x = size[0] / 2;
+        y = size[1] / 2;
+        i = -1;
+        if (k) while (++i < n) {
+          o = nodes[i];
+          o.x += (x - o.x) * k;
+          o.y += (y - o.y) * k;
+        }
+      }
+      if (charge) {
+        d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
+        i = -1;
+        while (++i < n) {
+          if (!(o = nodes[i]).fixed) {
+            q.visit(repulse(o));
+          }
+        }
+      }
+      i = -1;
+      while (++i < n) {
+        o = nodes[i];
+        if (o.fixed) {
+          o.x = o.px;
+          o.y = o.py;
+        } else {
+          o.x -= (o.px - (o.px = o.x)) * friction;
+          o.y -= (o.py - (o.py = o.y)) * friction;
+        }
+      }
+      event.tick({
+        type: "tick",
+        alpha: alpha
+      });
+    };
+    force.nodes = function(x) {
+      if (!arguments.length) return nodes;
+      nodes = x;
+      return force;
+    };
+    force.links = function(x) {
+      if (!arguments.length) return links;
+      links = x;
+      return force;
+    };
+    force.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return force;
+    };
+    force.linkDistance = function(x) {
+      if (!arguments.length) return linkDistance;
+      linkDistance = typeof x === "function" ? x : +x;
+      return force;
+    };
+    force.distance = force.linkDistance;
+    force.linkStrength = function(x) {
+      if (!arguments.length) return linkStrength;
+      linkStrength = typeof x === "function" ? x : +x;
+      return force;
+    };
+    force.friction = function(x) {
+      if (!arguments.length) return friction;
+      friction = +x;
+      return force;
+    };
+    force.charge = function(x) {
+      if (!arguments.length) return charge;
+      charge = typeof x === "function" ? x : +x;
+      return force;
+    };
+    force.chargeDistance = function(x) {
+      if (!arguments.length) return Math.sqrt(chargeDistance2);
+      chargeDistance2 = x * x;
+      return force;
+    };
+    force.gravity = function(x) {
+      if (!arguments.length) return gravity;
+      gravity = +x;
+      return force;
+    };
+    force.theta = function(x) {
+      if (!arguments.length) return Math.sqrt(theta2);
+      theta2 = x * x;
+      return force;
+    };
+    force.alpha = function(x) {
+      if (!arguments.length) return alpha;
+      x = +x;
+      if (alpha) {
+        if (x > 0) {
+          alpha = x;
+        } else {
+          timer.c = null, timer.t = NaN, timer = null;
+          event.end({
+            type: "end",
+            alpha: alpha = 0
+          });
+        }
+      } else if (x > 0) {
+        event.start({
+          type: "start",
+          alpha: alpha = x
+        });
+        timer = d3_timer(force.tick);
+      }
+      return force;
+    };
+    force.start = function() {
+      var i, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;
+      for (i = 0; i < n; ++i) {
+        (o = nodes[i]).index = i;
+        o.weight = 0;
+      }
+      for (i = 0; i < m; ++i) {
+        o = links[i];
+        if (typeof o.source == "number") o.source = nodes[o.source];
+        if (typeof o.target == "number") o.target = nodes[o.target];
+        ++o.source.weight;
+        ++o.target.weight;
+      }
+      for (i = 0; i < n; ++i) {
+        o = nodes[i];
+        if (isNaN(o.x)) o.x = position("x", w);
+        if (isNaN(o.y)) o.y = position("y", h);
+        if (isNaN(o.px)) o.px = o.x;
+        if (isNaN(o.py)) o.py = o.y;
+      }
+      distances = [];
+      if (typeof linkDistance === "function") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance;
+      strengths = [];
+      if (typeof linkStrength === "function") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength;
+      charges = [];
+      if (typeof charge === "function") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge;
+      function position(dimension, size) {
+        if (!neighbors) {
+          neighbors = new Array(n);
+          for (j = 0; j < n; ++j) {
+            neighbors[j] = [];
+          }
+          for (j = 0; j < m; ++j) {
+            var o = links[j];
+            neighbors[o.source.index].push(o.target);
+            neighbors[o.target.index].push(o.source);
+          }
+        }
+        var candidates = neighbors[i], j = -1, l = candidates.length, x;
+        while (++j < l) if (!isNaN(x = candidates[j][dimension])) return x;
+        return Math.random() * size;
+      }
+      return force.resume();
+    };
+    force.resume = function() {
+      return force.alpha(.1);
+    };
+    force.stop = function() {
+      return force.alpha(0);
+    };
+    force.drag = function() {
+      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart.force", d3_layout_forceDragstart).on("drag.force", dragmove).on("dragend.force", d3_layout_forceDragend);
+      if (!arguments.length) return drag;
+      this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);
+    };
+    function dragmove(d) {
+      d.px = d3.event.x, d.py = d3.event.y;
+      force.resume();
+    }
+    return d3.rebind(force, event, "on");
+  };
+  function d3_layout_forceDragstart(d) {
+    d.fixed |= 2;
+  }
+  function d3_layout_forceDragend(d) {
+    d.fixed &= ~6;
+  }
+  function d3_layout_forceMouseover(d) {
+    d.fixed |= 4;
+    d.px = d.x, d.py = d.y;
+  }
+  function d3_layout_forceMouseout(d) {
+    d.fixed &= ~4;
+  }
+  function d3_layout_forceAccumulate(quad, alpha, charges) {
+    var cx = 0, cy = 0;
+    quad.charge = 0;
+    if (!quad.leaf) {
+      var nodes = quad.nodes, n = nodes.length, i = -1, c;
+      while (++i < n) {
+        c = nodes[i];
+        if (c == null) continue;
+        d3_layout_forceAccumulate(c, alpha, charges);
+        quad.charge += c.charge;
+        cx += c.charge * c.cx;
+        cy += c.charge * c.cy;
+      }
+    }
+    if (quad.point) {
+      if (!quad.leaf) {
+        quad.point.x += Math.random() - .5;
+        quad.point.y += Math.random() - .5;
+      }
+      var k = alpha * charges[quad.point.index];
+      quad.charge += quad.pointCharge = k;
+      cx += k * quad.point.x;
+      cy += k * quad.point.y;
+    }
+    quad.cx = cx / quad.charge;
+    quad.cy = cy / quad.charge;
+  }
+  var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1, d3_layout_forceChargeDistance2 = Infinity;
+  d3.layout.hierarchy = function() {
+    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
+    function hierarchy(root) {
+      var stack = [ root ], nodes = [], node;
+      root.depth = 0;
+      while ((node = stack.pop()) != null) {
+        nodes.push(node);
+        if ((childs = children.call(hierarchy, node, node.depth)) && (n = childs.length)) {
+          var n, childs, child;
+          while (--n >= 0) {
+            stack.push(child = childs[n]);
+            child.parent = node;
+            child.depth = node.depth + 1;
+          }
+          if (value) node.value = 0;
+          node.children = childs;
+        } else {
+          if (value) node.value = +value.call(hierarchy, node, node.depth) || 0;
+          delete node.children;
+        }
+      }
+      d3_layout_hierarchyVisitAfter(root, function(node) {
+        var childs, parent;
+        if (sort && (childs = node.children)) childs.sort(sort);
+        if (value && (parent = node.parent)) parent.value += node.value;
+      });
+      return nodes;
+    }
+    hierarchy.sort = function(x) {
+      if (!arguments.length) return sort;
+      sort = x;
+      return hierarchy;
+    };
+    hierarchy.children = function(x) {
+      if (!arguments.length) return children;
+      children = x;
+      return hierarchy;
+    };
+    hierarchy.value = function(x) {
+      if (!arguments.length) return value;
+      value = x;
+      return hierarchy;
+    };
+    hierarchy.revalue = function(root) {
+      if (value) {
+        d3_layout_hierarchyVisitBefore(root, function(node) {
+          if (node.children) node.value = 0;
+        });
+        d3_layout_hierarchyVisitAfter(root, function(node) {
+          var parent;
+          if (!node.children) node.value = +value.call(hierarchy, node, node.depth) || 0;
+          if (parent = node.parent) parent.value += node.value;
+        });
+      }
+      return root;
+    };
+    return hierarchy;
+  };
+  function d3_layout_hierarchyRebind(object, hierarchy) {
+    d3.rebind(object, hierarchy, "sort", "children", "value");
+    object.nodes = object;
+    object.links = d3_layout_hierarchyLinks;
+    return object;
+  }
+  function d3_layout_hierarchyVisitBefore(node, callback) {
+    var nodes = [ node ];
+    while ((node = nodes.pop()) != null) {
+      callback(node);
+      if ((children = node.children) && (n = children.length)) {
+        var n, children;
+        while (--n >= 0) nodes.push(children[n]);
+      }
+    }
+  }
+  function d3_layout_hierarchyVisitAfter(node, callback) {
+    var nodes = [ node ], nodes2 = [];
+    while ((node = nodes.pop()) != null) {
+      nodes2.push(node);
+      if ((children = node.children) && (n = children.length)) {
+        var i = -1, n, children;
+        while (++i < n) nodes.push(children[i]);
+      }
+    }
+    while ((node = nodes2.pop()) != null) {
+      callback(node);
+    }
+  }
+  function d3_layout_hierarchyChildren(d) {
+    return d.children;
+  }
+  function d3_layout_hierarchyValue(d) {
+    return d.value;
+  }
+  function d3_layout_hierarchySort(a, b) {
+    return b.value - a.value;
+  }
+  function d3_layout_hierarchyLinks(nodes) {
+    return d3.merge(nodes.map(function(parent) {
+      return (parent.children || []).map(function(child) {
+        return {
+          source: parent,
+          target: child
+        };
+      });
+    }));
+  }
+  d3.layout.partition = function() {
+    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
+    function position(node, x, dx, dy) {
+      var children = node.children;
+      node.x = x;
+      node.y = node.depth * dy;
+      node.dx = dx;
+      node.dy = dy;
+      if (children && (n = children.length)) {
+        var i = -1, n, c, d;
+        dx = node.value ? dx / node.value : 0;
+        while (++i < n) {
+          position(c = children[i], x, d = c.value * dx, dy);
+          x += d;
+        }
+      }
+    }
+    function depth(node) {
+      var children = node.children, d = 0;
+      if (children && (n = children.length)) {
+        var i = -1, n;
+        while (++i < n) d = Math.max(d, depth(children[i]));
+      }
+      return 1 + d;
+    }
+    function partition(d, i) {
+      var nodes = hierarchy.call(this, d, i);
+      position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
+      return nodes;
+    }
+    partition.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return partition;
+    };
+    return d3_layout_hierarchyRebind(partition, hierarchy);
+  };
+  d3.layout.pie = function() {
+    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = τ, padAngle = 0;
+    function pie(data) {
+      var n = data.length, values = data.map(function(d, i) {
+        return +value.call(pie, d, i);
+      }), a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle), da = (typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - a, p = Math.min(Math.abs(da) / n, +(typeof padAngle === "function" ? padAngle.apply(this, arguments) : padAngle)), pa = p * (da < 0 ? -1 : 1), sum = d3.sum(values), k = sum ? (da - n * pa) / sum : 0, index = d3.range(n), arcs = [], v;
+      if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {
+        return values[j] - values[i];
+      } : function(i, j) {
+        return sort(data[i], data[j]);
+      });
+      index.forEach(function(i) {
+        arcs[i] = {
+          data: data[i],
+          value: v = values[i],
+          startAngle: a,
+          endAngle: a += v * k + pa,
+          padAngle: p
+        };
+      });
+      return arcs;
+    }
+    pie.value = function(_) {
+      if (!arguments.length) return value;
+      value = _;
+      return pie;
+    };
+    pie.sort = function(_) {
+      if (!arguments.length) return sort;
+      sort = _;
+      return pie;
+    };
+    pie.startAngle = function(_) {
+      if (!arguments.length) return startAngle;
+      startAngle = _;
+      return pie;
+    };
+    pie.endAngle = function(_) {
+      if (!arguments.length) return endAngle;
+      endAngle = _;
+      return pie;
+    };
+    pie.padAngle = function(_) {
+      if (!arguments.length) return padAngle;
+      padAngle = _;
+      return pie;
+    };
+    return pie;
+  };
+  var d3_layout_pieSortByValue = {};
+  d3.layout.stack = function() {
+    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
+    function stack(data, index) {
+      if (!(n = data.length)) return data;
+      var series = data.map(function(d, i) {
+        return values.call(stack, d, i);
+      });
+      var points = series.map(function(d) {
+        return d.map(function(v, i) {
+          return [ x.call(stack, v, i), y.call(stack, v, i) ];
+        });
+      });
+      var orders = order.call(stack, points, index);
+      series = d3.permute(series, orders);
+      points = d3.permute(points, orders);
+      var offsets = offset.call(stack, points, index);
+      var m = series[0].length, n, i, j, o;
+      for (j = 0; j < m; ++j) {
+        out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
+        for (i = 1; i < n; ++i) {
+          out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
+        }
+      }
+      return data;
+    }
+    stack.values = function(x) {
+      if (!arguments.length) return values;
+      values = x;
+      return stack;
+    };
+    stack.order = function(x) {
+      if (!arguments.length) return order;
+      order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;
+      return stack;
+    };
+    stack.offset = function(x) {
+      if (!arguments.length) return offset;
+      offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;
+      return stack;
+    };
+    stack.x = function(z) {
+      if (!arguments.length) return x;
+      x = z;
+      return stack;
+    };
+    stack.y = function(z) {
+      if (!arguments.length) return y;
+      y = z;
+      return stack;
+    };
+    stack.out = function(z) {
+      if (!arguments.length) return out;
+      out = z;
+      return stack;
+    };
+    return stack;
+  };
+  function d3_layout_stackX(d) {
+    return d.x;
+  }
+  function d3_layout_stackY(d) {
+    return d.y;
+  }
+  function d3_layout_stackOut(d, y0, y) {
+    d.y0 = y0;
+    d.y = y;
+  }
+  var d3_layout_stackOrders = d3.map({
+    "inside-out": function(data) {
+      var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {
+        return max[a] - max[b];
+      }), top = 0, bottom = 0, tops = [], bottoms = [];
+      for (i = 0; i < n; ++i) {
+        j = index[i];
+        if (top < bottom) {
+          top += sums[j];
+          tops.push(j);
+        } else {
+          bottom += sums[j];
+          bottoms.push(j);
+        }
+      }
+      return bottoms.reverse().concat(tops);
+    },
+    reverse: function(data) {
+      return d3.range(data.length).reverse();
+    },
+    "default": d3_layout_stackOrderDefault
+  });
+  var d3_layout_stackOffsets = d3.map({
+    silhouette: function(data) {
+      var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = [];
+      for (j = 0; j < m; ++j) {
+        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
+        if (o > max) max = o;
+        sums.push(o);
+      }
+      for (j = 0; j < m; ++j) {
+        y0[j] = (max - sums[j]) / 2;
+      }
+      return y0;
+    },
+    wiggle: function(data) {
+      var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];
+      y0[0] = o = o0 = 0;
+      for (j = 1; j < m; ++j) {
+        for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
+        for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
+          for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
+            s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
+          }
+          s2 += s3 * data[i][j][1];
+        }
+        y0[j] = o -= s1 ? s2 / s1 * dx : 0;
+        if (o < o0) o0 = o;
+      }
+      for (j = 0; j < m; ++j) y0[j] -= o0;
+      return y0;
+    },
+    expand: function(data) {
+      var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = [];
+      for (j = 0; j < m; ++j) {
+        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
+        if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k;
+      }
+      for (j = 0; j < m; ++j) y0[j] = 0;
+      return y0;
+    },
+    zero: d3_layout_stackOffsetZero
+  });
+  function d3_layout_stackOrderDefault(data) {
+    return d3.range(data.length);
+  }
+  function d3_layout_stackOffsetZero(data) {
+    var j = -1, m = data[0].length, y0 = [];
+    while (++j < m) y0[j] = 0;
+    return y0;
+  }
+  function d3_layout_stackMaxIndex(array) {
+    var i = 1, j = 0, v = array[0][1], k, n = array.length;
+    for (;i < n; ++i) {
+      if ((k = array[i][1]) > v) {
+        j = i;
+        v = k;
+      }
+    }
+    return j;
+  }
+  function d3_layout_stackReduceSum(d) {
+    return d.reduce(d3_layout_stackSum, 0);
+  }
+  function d3_layout_stackSum(p, d) {
+    return p + d[1];
+  }
+  d3.layout.histogram = function() {
+    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
+    function histogram(data, i) {
+      var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;
+      while (++i < m) {
+        bin = bins[i] = [];
+        bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
+        bin.y = 0;
+      }
+      if (m > 0) {
+        i = -1;
+        while (++i < n) {
+          x = values[i];
+          if (x >= range[0] && x <= range[1]) {
+            bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
+            bin.y += k;
+            bin.push(data[i]);
+          }
+        }
+      }
+      return bins;
+    }
+    histogram.value = function(x) {
+      if (!arguments.length) return valuer;
+      valuer = x;
+      return histogram;
+    };
+    histogram.range = function(x) {
+      if (!arguments.length) return ranger;
+      ranger = d3_functor(x);
+      return histogram;
+    };
+    histogram.bins = function(x) {
+      if (!arguments.length) return binner;
+      binner = typeof x === "number" ? function(range) {
+        return d3_layout_histogramBinFixed(range, x);
+      } : d3_functor(x);
+      return histogram;
+    };
+    histogram.frequency = function(x) {
+      if (!arguments.length) return frequency;
+      frequency = !!x;
+      return histogram;
+    };
+    return histogram;
+  };
+  function d3_layout_histogramBinSturges(range, values) {
+    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
+  }
+  function d3_layout_histogramBinFixed(range, n) {
+    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];
+    while (++x <= n) f[x] = m * x + b;
+    return f;
+  }
+  function d3_layout_histogramRange(values) {
+    return [ d3.min(values), d3.max(values) ];
+  }
+  d3.layout.pack = function() {
+    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ], radius;
+    function pack(d, i) {
+      var nodes = hierarchy.call(this, d, i), root = nodes[0], w = size[0], h = size[1], r = radius == null ? Math.sqrt : typeof radius === "function" ? radius : function() {
+        return radius;
+      };
+      root.x = root.y = 0;
+      d3_layout_hierarchyVisitAfter(root, function(d) {
+        d.r = +r(d.value);
+      });
+      d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
+      if (padding) {
+        var dr = padding * (radius ? 1 : Math.max(2 * root.r / w, 2 * root.r / h)) / 2;
+        d3_layout_hierarchyVisitAfter(root, function(d) {
+          d.r += dr;
+        });
+        d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
+        d3_layout_hierarchyVisitAfter(root, function(d) {
+          d.r -= dr;
+        });
+      }
+      d3_layout_packTransform(root, w / 2, h / 2, radius ? 1 : 1 / Math.max(2 * root.r / w, 2 * root.r / h));
+      return nodes;
+    }
+    pack.size = function(_) {
+      if (!arguments.length) return size;
+      size = _;
+      return pack;
+    };
+    pack.radius = function(_) {
+      if (!arguments.length) return radius;
+      radius = _ == null || typeof _ === "function" ? _ : +_;
+      return pack;
+    };
+    pack.padding = function(_) {
+      if (!arguments.length) return padding;
+      padding = +_;
+      return pack;
+    };
+    return d3_layout_hierarchyRebind(pack, hierarchy);
+  };
+  function d3_layout_packSort(a, b) {
+    return a.value - b.value;
+  }
+  function d3_layout_packInsert(a, b) {
+    var c = a._pack_next;
+    a._pack_next = b;
+    b._pack_prev = a;
+    b._pack_next = c;
+    c._pack_prev = b;
+  }
+  function d3_layout_packSplice(a, b) {
+    a._pack_next = b;
+    b._pack_prev = a;
+  }
+  function d3_layout_packIntersects(a, b) {
+    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;
+    return .999 * dr * dr > dx * dx + dy * dy;
+  }
+  function d3_layout_packSiblings(node) {
+    if (!(nodes = node.children) || !(n = nodes.length)) return;
+    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;
+    function bound(node) {
+      xMin = Math.min(node.x - node.r, xMin);
+      xMax = Math.max(node.x + node.r, xMax);
+      yMin = Math.min(node.y - node.r, yMin);
+      yMax = Math.max(node.y + node.r, yMax);
+    }
+    nodes.forEach(d3_layout_packLink);
+    a = nodes[0];
+    a.x = -a.r;
+    a.y = 0;
+    bound(a);
+    if (n > 1) {
+      b = nodes[1];
+      b.x = b.r;
+      b.y = 0;
+      bound(b);
+      if (n > 2) {
+        c = nodes[2];
+        d3_layout_packPlace(a, b, c);
+        bound(c);
+        d3_layout_packInsert(a, c);
+        a._pack_prev = c;
+        d3_layout_packInsert(c, b);
+        b = a._pack_next;
+        for (i = 3; i < n; i++) {
+          d3_layout_packPlace(a, b, c = nodes[i]);
+          var isect = 0, s1 = 1, s2 = 1;
+          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
+            if (d3_layout_packIntersects(j, c)) {
+              isect = 1;
+              break;
+            }
+          }
+          if (isect == 1) {
+            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
+              if (d3_layout_packIntersects(k, c)) {
+                break;
+              }
+            }
+          }
+          if (isect) {
+            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);
+            i--;
+          } else {
+            d3_layout_packInsert(a, c);
+            b = c;
+            bound(c);
+          }
+        }
+      }
+    }
+    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;
+    for (i = 0; i < n; i++) {
+      c = nodes[i];
+      c.x -= cx;
+      c.y -= cy;
+      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));
+    }
+    node.r = cr;
+    nodes.forEach(d3_layout_packUnlink);
+  }
+  function d3_layout_packLink(node) {
+    node._pack_next = node._pack_prev = node;
+  }
+  function d3_layout_packUnlink(node) {
+    delete node._pack_next;
+    delete node._pack_prev;
+  }
+  function d3_layout_packTransform(node, x, y, k) {
+    var children = node.children;
+    node.x = x += k * node.x;
+    node.y = y += k * node.y;
+    node.r *= k;
+    if (children) {
+      var i = -1, n = children.length;
+      while (++i < n) d3_layout_packTransform(children[i], x, y, k);
+    }
+  }
+  function d3_layout_packPlace(a, b, c) {
+    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;
+    if (db && (dx || dy)) {
+      var da = b.r + c.r, dc = dx * dx + dy * dy;
+      da *= da;
+      db *= db;
+      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
+      c.x = a.x + x * dx + y * dy;
+      c.y = a.y + x * dy - y * dx;
+    } else {
+      c.x = a.x + db;
+      c.y = a.y;
+    }
+  }
+  d3.layout.tree = function() {
+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = null;
+    function tree(d, i) {
+      var nodes = hierarchy.call(this, d, i), root0 = nodes[0], root1 = wrapTree(root0);
+      d3_layout_hierarchyVisitAfter(root1, firstWalk), root1.parent.m = -root1.z;
+      d3_layout_hierarchyVisitBefore(root1, secondWalk);
+      if (nodeSize) d3_layout_hierarchyVisitBefore(root0, sizeNode); else {
+        var left = root0, right = root0, bottom = root0;
+        d3_layout_hierarchyVisitBefore(root0, function(node) {
+          if (node.x < left.x) left = node;
+          if (node.x > right.x) right = node;
+          if (node.depth > bottom.depth) bottom = node;
+        });
+        var tx = separation(left, right) / 2 - left.x, kx = size[0] / (right.x + separation(right, left) / 2 + tx), ky = size[1] / (bottom.depth || 1);
+        d3_layout_hierarchyVisitBefore(root0, function(node) {
+          node.x = (node.x + tx) * kx;
+          node.y = node.depth * ky;
+        });
+      }
+      return nodes;
+    }
+    function wrapTree(root0) {
+      var root1 = {
+        A: null,
+        children: [ root0 ]
+      }, queue = [ root1 ], node1;
+      while ((node1 = queue.pop()) != null) {
+        for (var children = node1.children, child, i = 0, n = children.length; i < n; ++i) {
+          queue.push((children[i] = child = {
+            _: children[i],
+            parent: node1,
+            children: (child = children[i].children) && child.slice() || [],
+            A: null,
+            a: null,
+            z: 0,
+            m: 0,
+            c: 0,
+            s: 0,
+            t: null,
+            i: i
+          }).a = child);
+        }
+      }
+      return root1.children[0];
+    }
+    function firstWalk(v) {
+      var children = v.children, siblings = v.parent.children, w = v.i ? siblings[v.i - 1] : null;
+      if (children.length) {
+        d3_layout_treeShift(v);
+        var midpoint = (children[0].z + children[children.length - 1].z) / 2;
+        if (w) {
+          v.z = w.z + separation(v._, w._);
+          v.m = v.z - midpoint;
+        } else {
+          v.z = midpoint;
+        }
+      } else if (w) {
+        v.z = w.z + separation(v._, w._);
+      }
+      v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
+    }
+    function secondWalk(v) {
+      v._.x = v.z + v.parent.m;
+      v.m += v.parent.m;
+    }
+    function apportion(v, w, ancestor) {
+      if (w) {
+        var vip = v, vop = v, vim = w, vom = vip.parent.children[0], sip = vip.m, sop = vop.m, sim = vim.m, som = vom.m, shift;
+        while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
+          vom = d3_layout_treeLeft(vom);
+          vop = d3_layout_treeRight(vop);
+          vop.a = v;
+          shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
+          if (shift > 0) {
+            d3_layout_treeMove(d3_layout_treeAncestor(vim, v, ancestor), v, shift);
+            sip += shift;
+            sop += shift;
+          }
+          sim += vim.m;
+          sip += vip.m;
+          som += vom.m;
+          sop += vop.m;
+        }
+        if (vim && !d3_layout_treeRight(vop)) {
+          vop.t = vim;
+          vop.m += sim - sop;
+        }
+        if (vip && !d3_layout_treeLeft(vom)) {
+          vom.t = vip;
+          vom.m += sip - som;
+          ancestor = v;
+        }
+      }
+      return ancestor;
+    }
+    function sizeNode(node) {
+      node.x *= size[0];
+      node.y = node.depth * size[1];
+    }
+    tree.separation = function(x) {
+      if (!arguments.length) return separation;
+      separation = x;
+      return tree;
+    };
+    tree.size = function(x) {
+      if (!arguments.length) return nodeSize ? null : size;
+      nodeSize = (size = x) == null ? sizeNode : null;
+      return tree;
+    };
+    tree.nodeSize = function(x) {
+      if (!arguments.length) return nodeSize ? size : null;
+      nodeSize = (size = x) == null ? null : sizeNode;
+      return tree;
+    };
+    return d3_layout_hierarchyRebind(tree, hierarchy);
+  };
+  function d3_layout_treeSeparation(a, b) {
+    return a.parent == b.parent ? 1 : 2;
+  }
+  function d3_layout_treeLeft(v) {
+    var children = v.children;
+    return children.length ? children[0] : v.t;
+  }
+  function d3_layout_treeRight(v) {
+    var children = v.children, n;
+    return (n = children.length) ? children[n - 1] : v.t;
+  }
+  function d3_layout_treeMove(wm, wp, shift) {
+    var change = shift / (wp.i - wm.i);
+    wp.c -= change;
+    wp.s += shift;
+    wm.c += change;
+    wp.z += shift;
+    wp.m += shift;
+  }
+  function d3_layout_treeShift(v) {
+    var shift = 0, change = 0, children = v.children, i = children.length, w;
+    while (--i >= 0) {
+      w = children[i];
+      w.z += shift;
+      w.m += shift;
+      shift += w.s + (change += w.c);
+    }
+  }
+  function d3_layout_treeAncestor(vim, v, ancestor) {
+    return vim.a.parent === v.parent ? vim.a : ancestor;
+  }
+  d3.layout.cluster = function() {
+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = false;
+    function cluster(d, i) {
+      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0;
+      d3_layout_hierarchyVisitAfter(root, function(node) {
+        var children = node.children;
+        if (children && children.length) {
+          node.x = d3_layout_clusterX(children);
+          node.y = d3_layout_clusterY(children);
+        } else {
+          node.x = previousNode ? x += separation(node, previousNode) : 0;
+          node.y = 0;
+          previousNode = node;
+        }
+      });
+      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;
+      d3_layout_hierarchyVisitAfter(root, nodeSize ? function(node) {
+        node.x = (node.x - root.x) * size[0];
+        node.y = (root.y - node.y) * size[1];
+      } : function(node) {
+        node.x = (node.x - x0) / (x1 - x0) * size[0];
+        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
+      });
+      return nodes;
+    }
+    cluster.separation = function(x) {
+      if (!arguments.length) return separation;
+      separation = x;
+      return cluster;
+    };
+    cluster.size = function(x) {
+      if (!arguments.length) return nodeSize ? null : size;
+      nodeSize = (size = x) == null;
+      return cluster;
+    };
+    cluster.nodeSize = function(x) {
+      if (!arguments.length) return nodeSize ? size : null;
+      nodeSize = (size = x) != null;
+      return cluster;
+    };
+    return d3_layout_hierarchyRebind(cluster, hierarchy);
+  };
+  function d3_layout_clusterY(children) {
+    return 1 + d3.max(children, function(child) {
+      return child.y;
+    });
+  }
+  function d3_layout_clusterX(children) {
+    return children.reduce(function(x, child) {
+      return x + child.x;
+    }, 0) / children.length;
+  }
+  function d3_layout_clusterLeft(node) {
+    var children = node.children;
+    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
+  }
+  function d3_layout_clusterRight(node) {
+    var children = node.children, n;
+    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
+  }
+  d3.layout.treemap = function() {
+    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = "squarify", ratio = .5 * (1 + Math.sqrt(5));
+    function scale(children, k) {
+      var i = -1, n = children.length, child, area;
+      while (++i < n) {
+        area = (child = children[i]).value * (k < 0 ? 0 : k);
+        child.area = isNaN(area) || area <= 0 ? 0 : area;
+      }
+    }
+    function squarify(node) {
+      var children = node.children;
+      if (children && children.length) {
+        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === "slice" ? rect.dx : mode === "dice" ? rect.dy : mode === "slice-dice" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n;
+        scale(remaining, rect.dx * rect.dy / node.value);
+        row.area = 0;
+        while ((n = remaining.length) > 0) {
+          row.push(child = remaining[n - 1]);
+          row.area += child.area;
+          if (mode !== "squarify" || (score = worst(row, u)) <= best) {
+            remaining.pop();
+            best = score;
+          } else {
+            row.area -= row.pop().area;
+            position(row, u, rect, false);
+            u = Math.min(rect.dx, rect.dy);
+            row.length = row.area = 0;
+            best = Infinity;
+          }
+        }
+        if (row.length) {
+          position(row, u, rect, true);
+          row.length = row.area = 0;
+        }
+        children.forEach(squarify);
+      }
+    }
+    function stickify(node) {
+      var children = node.children;
+      if (children && children.length) {
+        var rect = pad(node), remaining = children.slice(), child, row = [];
+        scale(remaining, rect.dx * rect.dy / node.value);
+        row.area = 0;
+        while (child = remaining.pop()) {
+          row.push(child);
+          row.area += child.area;
+          if (child.z != null) {
+            position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
+            row.length = row.area = 0;
+          }
+        }
+        children.forEach(stickify);
+      }
+    }
+    function worst(row, u) {
+      var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length;
+      while (++i < n) {
+        if (!(r = row[i].area)) continue;
+        if (r < rmin) rmin = r;
+        if (r > rmax) rmax = r;
+      }
+      s *= s;
+      u *= u;
+      return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity;
+    }
+    function position(row, u, rect, flush) {
+      var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o;
+      if (u == rect.dx) {
+        if (flush || v > rect.dy) v = rect.dy;
+        while (++i < n) {
+          o = row[i];
+          o.x = x;
+          o.y = y;
+          o.dy = v;
+          x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);
+        }
+        o.z = true;
+        o.dx += rect.x + rect.dx - x;
+        rect.y += v;
+        rect.dy -= v;
+      } else {
+        if (flush || v > rect.dx) v = rect.dx;
+        while (++i < n) {
+          o = row[i];
+          o.x = x;
+          o.y = y;
+          o.dx = v;
+          y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);
+        }
+        o.z = false;
+        o.dy += rect.y + rect.dy - y;
+        rect.x += v;
+        rect.dx -= v;
+      }
+    }
+    function treemap(d) {
+      var nodes = stickies || hierarchy(d), root = nodes[0];
+      root.x = root.y = 0;
+      if (root.value) root.dx = size[0], root.dy = size[1]; else root.dx = root.dy = 0;
+      if (stickies) hierarchy.revalue(root);
+      scale([ root ], root.dx * root.dy / root.value);
+      (stickies ? stickify : squarify)(root);
+      if (sticky) stickies = nodes;
+      return nodes;
+    }
+    treemap.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return treemap;
+    };
+    treemap.padding = function(x) {
+      if (!arguments.length) return padding;
+      function padFunction(node) {
+        var p = x.call(treemap, node, node.depth);
+        return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p);
+      }
+      function padConstant(node) {
+        return d3_layout_treemapPad(node, x);
+      }
+      var type;
+      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ], 
+      padConstant) : padConstant;
+      return treemap;
+    };
+    treemap.round = function(x) {
+      if (!arguments.length) return round != Number;
+      round = x ? Math.round : Number;
+      return treemap;
+    };
+    treemap.sticky = function(x) {
+      if (!arguments.length) return sticky;
+      sticky = x;
+      stickies = null;
+      return treemap;
+    };
+    treemap.ratio = function(x) {
+      if (!arguments.length) return ratio;
+      ratio = x;
+      return treemap;
+    };
+    treemap.mode = function(x) {
+      if (!arguments.length) return mode;
+      mode = x + "";
+      return treemap;
+    };
+    return d3_layout_hierarchyRebind(treemap, hierarchy);
+  };
+  function d3_layout_treemapPadNull(node) {
+    return {
+      x: node.x,
+      y: node.y,
+      dx: node.dx,
+      dy: node.dy
+    };
+  }
+  function d3_layout_treemapPad(node, padding) {
+    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];
+    if (dx < 0) {
+      x += dx / 2;
+      dx = 0;
+    }
+    if (dy < 0) {
+      y += dy / 2;
+      dy = 0;
+    }
+    return {
+      x: x,
+      y: y,
+      dx: dx,
+      dy: dy
+    };
+  }
+  d3.random = {
+    normal: function(µ, σ) {
+      var n = arguments.length;
+      if (n < 2) σ = 1;
+      if (n < 1) µ = 0;
+      return function() {
+        var x, y, r;
+        do {
+          x = Math.random() * 2 - 1;
+          y = Math.random() * 2 - 1;
+          r = x * x + y * y;
+        } while (!r || r > 1);
+        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
+      };
+    },
+    logNormal: function() {
+      var random = d3.random.normal.apply(d3, arguments);
+      return function() {
+        return Math.exp(random());
+      };
+    },
+    bates: function(m) {
+      var random = d3.random.irwinHall(m);
+      return function() {
+        return random() / m;
+      };
+    },
+    irwinHall: function(m) {
+      return function() {
+        for (var s = 0, j = 0; j < m; j++) s += Math.random();
+        return s;
+      };
+    }
+  };
+  d3.scale = {};
+  function d3_scaleExtent(domain) {
+    var start = domain[0], stop = domain[domain.length - 1];
+    return start < stop ? [ start, stop ] : [ stop, start ];
+  }
+  function d3_scaleRange(scale) {
+    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
+  }
+  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
+    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);
+    return function(x) {
+      return i(u(x));
+    };
+  }
+  function d3_scale_nice(domain, nice) {
+    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;
+    if (x1 < x0) {
+      dx = i0, i0 = i1, i1 = dx;
+      dx = x0, x0 = x1, x1 = dx;
+    }
+    domain[i0] = nice.floor(x0);
+    domain[i1] = nice.ceil(x1);
+    return domain;
+  }
+  function d3_scale_niceStep(step) {
+    return step ? {
+      floor: function(x) {
+        return Math.floor(x / step) * step;
+      },
+      ceil: function(x) {
+        return Math.ceil(x / step) * step;
+      }
+    } : d3_scale_niceIdentity;
+  }
+  var d3_scale_niceIdentity = {
+    floor: d3_identity,
+    ceil: d3_identity
+  };
+  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
+    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;
+    if (domain[k] < domain[0]) {
+      domain = domain.slice().reverse();
+      range = range.slice().reverse();
+    }
+    while (++j <= k) {
+      u.push(uninterpolate(domain[j - 1], domain[j]));
+      i.push(interpolate(range[j - 1], range[j]));
+    }
+    return function(x) {
+      var j = d3.bisect(domain, x, 1, k) - 1;
+      return i[j](u[j](x));
+    };
+  }
+  d3.scale.linear = function() {
+    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false);
+  };
+  function d3_scale_linear(domain, range, interpolate, clamp) {
+    var output, input;
+    function rescale() {
+      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
+      output = linear(domain, range, uninterpolate, interpolate);
+      input = linear(range, domain, uninterpolate, d3_interpolate);
+      return scale;
+    }
+    function scale(x) {
+      return output(x);
+    }
+    scale.invert = function(y) {
+      return input(y);
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(Number);
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.rangeRound = function(x) {
+      return scale.range(x).interpolate(d3_interpolateRound);
+    };
+    scale.clamp = function(x) {
+      if (!arguments.length) return clamp;
+      clamp = x;
+      return rescale();
+    };
+    scale.interpolate = function(x) {
+      if (!arguments.length) return interpolate;
+      interpolate = x;
+      return rescale();
+    };
+    scale.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    scale.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    scale.nice = function(m) {
+      d3_scale_linearNice(domain, m);
+      return rescale();
+    };
+    scale.copy = function() {
+      return d3_scale_linear(domain, range, interpolate, clamp);
+    };
+    return rescale();
+  }
+  function d3_scale_linearRebind(scale, linear) {
+    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+  }
+  function d3_scale_linearNice(domain, m) {
+    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
+    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
+    return domain;
+  }
+  function d3_scale_linearTickRange(domain, m) {
+    if (m == null) m = 10;
+    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;
+    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;
+    extent[0] = Math.ceil(extent[0] / step) * step;
+    extent[1] = Math.floor(extent[1] / step) * step + step * .5;
+    extent[2] = step;
+    return extent;
+  }
+  function d3_scale_linearTicks(domain, m) {
+    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
+  }
+  function d3_scale_linearTickFormat(domain, m, format) {
+    var range = d3_scale_linearTickRange(domain, m);
+    if (format) {
+      var match = d3_format_re.exec(format);
+      match.shift();
+      if (match[8] === "s") {
+        var prefix = d3.formatPrefix(Math.max(abs(range[0]), abs(range[1])));
+        if (!match[7]) match[7] = "." + d3_scale_linearPrecision(prefix.scale(range[2]));
+        match[8] = "f";
+        format = d3.format(match.join(""));
+        return function(d) {
+          return format(prefix.scale(d)) + prefix.symbol;
+        };
+      }
+      if (!match[7]) match[7] = "." + d3_scale_linearFormatPrecision(match[8], range);
+      format = match.join("");
+    } else {
+      format = ",." + d3_scale_linearPrecision(range[2]) + "f";
+    }
+    return d3.format(format);
+  }
+  var d3_scale_linearFormatSignificant = {
+    s: 1,
+    g: 1,
+    p: 1,
+    r: 1,
+    e: 1
+  };
+  function d3_scale_linearPrecision(value) {
+    return -Math.floor(Math.log(value) / Math.LN10 + .01);
+  }
+  function d3_scale_linearFormatPrecision(type, range) {
+    var p = d3_scale_linearPrecision(range[2]);
+    return type in d3_scale_linearFormatSignificant ? Math.abs(p - d3_scale_linearPrecision(Math.max(abs(range[0]), abs(range[1])))) + +(type !== "e") : p - (type === "%") * 2;
+  }
+  d3.scale.log = function() {
+    return d3_scale_log(d3.scale.linear().domain([ 0, 1 ]), 10, true, [ 1, 10 ]);
+  };
+  function d3_scale_log(linear, base, positive, domain) {
+    function log(x) {
+      return (positive ? Math.log(x < 0 ? 0 : x) : -Math.log(x > 0 ? 0 : -x)) / Math.log(base);
+    }
+    function pow(x) {
+      return positive ? Math.pow(base, x) : -Math.pow(base, -x);
+    }
+    function scale(x) {
+      return linear(log(x));
+    }
+    scale.invert = function(x) {
+      return pow(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      positive = x[0] >= 0;
+      linear.domain((domain = x.map(Number)).map(log));
+      return scale;
+    };
+    scale.base = function(_) {
+      if (!arguments.length) return base;
+      base = +_;
+      linear.domain(domain.map(log));
+      return scale;
+    };
+    scale.nice = function() {
+      var niced = d3_scale_nice(domain.map(log), positive ? Math : d3_scale_logNiceNegative);
+      linear.domain(niced);
+      domain = niced.map(pow);
+      return scale;
+    };
+    scale.ticks = function() {
+      var extent = d3_scaleExtent(domain), ticks = [], u = extent[0], v = extent[1], i = Math.floor(log(u)), j = Math.ceil(log(v)), n = base % 1 ? 2 : base;
+      if (isFinite(j - i)) {
+        if (positive) {
+          for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(pow(i) * k);
+          ticks.push(pow(i));
+        } else {
+          ticks.push(pow(i));
+          for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(pow(i) * k);
+        }
+        for (i = 0; ticks[i] < u; i++) {}
+        for (j = ticks.length; ticks[j - 1] > v; j--) {}
+        ticks = ticks.slice(i, j);
+      }
+      return ticks;
+    };
+    scale.tickFormat = function(n, format) {
+      if (!arguments.length) return d3_scale_logFormat;
+      if (arguments.length < 2) format = d3_scale_logFormat; else if (typeof format !== "function") format = d3.format(format);
+      var k = Math.max(1, base * n / scale.ticks().length);
+      return function(d) {
+        var i = d / pow(Math.round(log(d)));
+        if (i * base < base - .5) i *= base;
+        return i <= k ? format(d) : "";
+      };
+    };
+    scale.copy = function() {
+      return d3_scale_log(linear.copy(), base, positive, domain);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  var d3_scale_logFormat = d3.format(".0e"), d3_scale_logNiceNegative = {
+    floor: function(x) {
+      return -Math.ceil(-x);
+    },
+    ceil: function(x) {
+      return -Math.floor(-x);
+    }
+  };
+  d3.scale.pow = function() {
+    return d3_scale_pow(d3.scale.linear(), 1, [ 0, 1 ]);
+  };
+  function d3_scale_pow(linear, exponent, domain) {
+    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
+    function scale(x) {
+      return linear(powp(x));
+    }
+    scale.invert = function(x) {
+      return powb(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      linear.domain((domain = x.map(Number)).map(powp));
+      return scale;
+    };
+    scale.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    scale.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    scale.nice = function(m) {
+      return scale.domain(d3_scale_linearNice(domain, m));
+    };
+    scale.exponent = function(x) {
+      if (!arguments.length) return exponent;
+      powp = d3_scale_powPow(exponent = x);
+      powb = d3_scale_powPow(1 / exponent);
+      linear.domain(domain.map(powp));
+      return scale;
+    };
+    scale.copy = function() {
+      return d3_scale_pow(linear.copy(), exponent, domain);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  function d3_scale_powPow(e) {
+    return function(x) {
+      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
+    };
+  }
+  d3.scale.sqrt = function() {
+    return d3.scale.pow().exponent(.5);
+  };
+  d3.scale.ordinal = function() {
+    return d3_scale_ordinal([], {
+      t: "range",
+      a: [ [] ]
+    });
+  };
+  function d3_scale_ordinal(domain, ranger) {
+    var index, range, rangeBand;
+    function scale(x) {
+      return range[((index.get(x) || (ranger.t === "range" ? index.set(x, domain.push(x)) : NaN)) - 1) % range.length];
+    }
+    function steps(start, step) {
+      return d3.range(domain.length).map(function(i) {
+        return start + step * i;
+      });
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = [];
+      index = new d3_Map();
+      var i = -1, n = x.length, xi;
+      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
+      return scale[ranger.t].apply(scale, ranger.a);
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      rangeBand = 0;
+      ranger = {
+        t: "range",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangePoints = function(x, padding) {
+      if (arguments.length < 2) padding = 0;
+      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = (start + stop) / 2, 
+      0) : (stop - start) / (domain.length - 1 + padding);
+      range = steps(start + step * padding / 2, step);
+      rangeBand = 0;
+      ranger = {
+        t: "rangePoints",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeRoundPoints = function(x, padding) {
+      if (arguments.length < 2) padding = 0;
+      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = stop = Math.round((start + stop) / 2), 
+      0) : (stop - start) / (domain.length - 1 + padding) | 0;
+      range = steps(start + Math.round(step * padding / 2 + (stop - start - (domain.length - 1 + padding) * step) / 2), step);
+      rangeBand = 0;
+      ranger = {
+        t: "rangeRoundPoints",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeBands = function(x, padding, outerPadding) {
+      if (arguments.length < 2) padding = 0;
+      if (arguments.length < 3) outerPadding = padding;
+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);
+      range = steps(start + step * outerPadding, step);
+      if (reverse) range.reverse();
+      rangeBand = step * (1 - padding);
+      ranger = {
+        t: "rangeBands",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeRoundBands = function(x, padding, outerPadding) {
+      if (arguments.length < 2) padding = 0;
+      if (arguments.length < 3) outerPadding = padding;
+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding));
+      range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step);
+      if (reverse) range.reverse();
+      rangeBand = Math.round(step * (1 - padding));
+      ranger = {
+        t: "rangeRoundBands",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeBand = function() {
+      return rangeBand;
+    };
+    scale.rangeExtent = function() {
+      return d3_scaleExtent(ranger.a[0]);
+    };
+    scale.copy = function() {
+      return d3_scale_ordinal(domain, ranger);
+    };
+    return scale.domain(domain);
+  }
+  d3.scale.category10 = function() {
+    return d3.scale.ordinal().range(d3_category10);
+  };
+  d3.scale.category20 = function() {
+    return d3.scale.ordinal().range(d3_category20);
+  };
+  d3.scale.category20b = function() {
+    return d3.scale.ordinal().range(d3_category20b);
+  };
+  d3.scale.category20c = function() {
+    return d3.scale.ordinal().range(d3_category20c);
+  };
+  var d3_category10 = [ 2062260, 16744206, 2924588, 14034728, 9725885, 9197131, 14907330, 8355711, 12369186, 1556175 ].map(d3_rgbString);
+  var d3_category20 = [ 2062260, 11454440, 16744206, 16759672, 2924588, 10018698, 14034728, 16750742, 9725885, 12955861, 9197131, 12885140, 14907330, 16234194, 8355711, 13092807, 12369186, 14408589, 1556175, 10410725 ].map(d3_rgbString);
+  var d3_category20b = [ 3750777, 5395619, 7040719, 10264286, 6519097, 9216594, 11915115, 13556636, 9202993, 12426809, 15186514, 15190932, 8666169, 11356490, 14049643, 15177372, 8077683, 10834324, 13528509, 14589654 ].map(d3_rgbString);
+  var d3_category20c = [ 3244733, 7057110, 10406625, 13032431, 15095053, 16616764, 16625259, 16634018, 3253076, 7652470, 10607003, 13101504, 7695281, 10394312, 12369372, 14342891, 6513507, 9868950, 12434877, 14277081 ].map(d3_rgbString);
+  d3.scale.quantile = function() {
+    return d3_scale_quantile([], []);
+  };
+  function d3_scale_quantile(domain, range) {
+    var thresholds;
+    function rescale() {
+      var k = 0, q = range.length;
+      thresholds = [];
+      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
+      return scale;
+    }
+    function scale(x) {
+      if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)];
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(d3_number).filter(d3_numeric).sort(d3_ascending);
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.quantiles = function() {
+      return thresholds;
+    };
+    scale.invertExtent = function(y) {
+      y = range.indexOf(y);
+      return y < 0 ? [ NaN, NaN ] : [ y > 0 ? thresholds[y - 1] : domain[0], y < thresholds.length ? thresholds[y] : domain[domain.length - 1] ];
+    };
+    scale.copy = function() {
+      return d3_scale_quantile(domain, range);
+    };
+    return rescale();
+  }
+  d3.scale.quantize = function() {
+    return d3_scale_quantize(0, 1, [ 0, 1 ]);
+  };
+  function d3_scale_quantize(x0, x1, range) {
+    var kx, i;
+    function scale(x) {
+      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
+    }
+    function rescale() {
+      kx = range.length / (x1 - x0);
+      i = range.length - 1;
+      return scale;
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return [ x0, x1 ];
+      x0 = +x[0];
+      x1 = +x[x.length - 1];
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.invertExtent = function(y) {
+      y = range.indexOf(y);
+      y = y < 0 ? NaN : y / kx + x0;
+      return [ y, y + 1 / kx ];
+    };
+    scale.copy = function() {
+      return d3_scale_quantize(x0, x1, range);
+    };
+    return rescale();
+  }
+  d3.scale.threshold = function() {
+    return d3_scale_threshold([ .5 ], [ 0, 1 ]);
+  };
+  function d3_scale_threshold(domain, range) {
+    function scale(x) {
+      if (x <= x) return range[d3.bisect(domain, x)];
+    }
+    scale.domain = function(_) {
+      if (!arguments.length) return domain;
+      domain = _;
+      return scale;
+    };
+    scale.range = function(_) {
+      if (!arguments.length) return range;
+      range = _;
+      return scale;
+    };
+    scale.invertExtent = function(y) {
+      y = range.indexOf(y);
+      return [ domain[y - 1], domain[y] ];
+    };
+    scale.copy = function() {
+      return d3_scale_threshold(domain, range);
+    };
+    return scale;
+  }
+  d3.scale.identity = function() {
+    return d3_scale_identity([ 0, 1 ]);
+  };
+  function d3_scale_identity(domain) {
+    function identity(x) {
+      return +x;
+    }
+    identity.invert = identity;
+    identity.domain = identity.range = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(identity);
+      return identity;
+    };
+    identity.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    identity.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    identity.copy = function() {
+      return d3_scale_identity(domain);
+    };
+    return identity;
+  }
+  d3.svg = {};
+  function d3_zero() {
+    return 0;
+  }
+  d3.svg.arc = function() {
+    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, cornerRadius = d3_zero, padRadius = d3_svg_arcAuto, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle, padAngle = d3_svg_arcPadAngle;
+    function arc() {
+      var r0 = Math.max(0, +innerRadius.apply(this, arguments)), r1 = Math.max(0, +outerRadius.apply(this, arguments)), a0 = startAngle.apply(this, arguments) - halfπ, a1 = endAngle.apply(this, arguments) - halfπ, da = Math.abs(a1 - a0), cw = a0 > a1 ? 0 : 1;
+      if (r1 < r0) rc = r1, r1 = r0, r0 = rc;
+      if (da >= τε) return circleSegment(r1, cw) + (r0 ? circleSegment(r0, 1 - cw) : "") + "Z";
+      var rc, cr, rp, ap, p0 = 0, p1 = 0, x0, y0, x1, y1, x2, y2, x3, y3, path = [];
+      if (ap = (+padAngle.apply(this, arguments) || 0) / 2) {
+        rp = padRadius === d3_svg_arcAuto ? Math.sqrt(r0 * r0 + r1 * r1) : +padRadius.apply(this, arguments);
+        if (!cw) p1 *= -1;
+        if (r1) p1 = d3_asin(rp / r1 * Math.sin(ap));
+        if (r0) p0 = d3_asin(rp / r0 * Math.sin(ap));
+      }
+      if (r1) {
+        x0 = r1 * Math.cos(a0 + p1);
+        y0 = r1 * Math.sin(a0 + p1);
+        x1 = r1 * Math.cos(a1 - p1);
+        y1 = r1 * Math.sin(a1 - p1);
+        var l1 = Math.abs(a1 - a0 - 2 * p1) <= π ? 0 : 1;
+        if (p1 && d3_svg_arcSweep(x0, y0, x1, y1) === cw ^ l1) {
+          var h1 = (a0 + a1) / 2;
+          x0 = r1 * Math.cos(h1);
+          y0 = r1 * Math.sin(h1);
+          x1 = y1 = null;
+        }
+      } else {
+        x0 = y0 = 0;
+      }
+      if (r0) {
+        x2 = r0 * Math.cos(a1 - p0);
+        y2 = r0 * Math.sin(a1 - p0);
+        x3 = r0 * Math.cos(a0 + p0);
+        y3 = r0 * Math.sin(a0 + p0);
+        var l0 = Math.abs(a0 - a1 + 2 * p0) <= π ? 0 : 1;
+        if (p0 && d3_svg_arcSweep(x2, y2, x3, y3) === 1 - cw ^ l0) {
+          var h0 = (a0 + a1) / 2;
+          x2 = r0 * Math.cos(h0);
+          y2 = r0 * Math.sin(h0);
+          x3 = y3 = null;
+        }
+      } else {
+        x2 = y2 = 0;
+      }
+      if (da > ε && (rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments))) > .001) {
+        cr = r0 < r1 ^ cw ? 0 : 1;
+        var rc1 = rc, rc0 = rc;
+        if (da < π) {
+          var oc = x3 == null ? [ x2, y2 ] : x1 == null ? [ x0, y0 ] : d3_geom_polygonIntersect([ x0, y0 ], [ x3, y3 ], [ x1, y1 ], [ x2, y2 ]), ax = x0 - oc[0], ay = y0 - oc[1], bx = x1 - oc[0], by = y1 - oc[1], kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]);
+          rc0 = Math.min(rc, (r0 - lc) / (kc - 1));
+          rc1 = Math.min(rc, (r1 - lc) / (kc + 1));
+        }
+        if (x1 != null) {
+          var t30 = d3_svg_arcCornerTangents(x3 == null ? [ x2, y2 ] : [ x3, y3 ], [ x0, y0 ], r1, rc1, cw), t12 = d3_svg_arcCornerTangents([ x1, y1 ], [ x2, y2 ], r1, rc1, cw);
+          if (rc === rc1) {
+            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 0,", cr, " ", t30[1], "A", r1, ",", r1, " 0 ", 1 - cw ^ d3_svg_arcSweep(t30[1][0], t30[1][1], t12[1][0], t12[1][1]), ",", cw, " ", t12[1], "A", rc1, ",", rc1, " 0 0,", cr, " ", t12[0]);
+          } else {
+            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 1,", cr, " ", t12[0]);
+          }
+        } else {
+          path.push("M", x0, ",", y0);
+        }
+        if (x3 != null) {
+          var t03 = d3_svg_arcCornerTangents([ x0, y0 ], [ x3, y3 ], r0, -rc0, cw), t21 = d3_svg_arcCornerTangents([ x2, y2 ], x1 == null ? [ x0, y0 ] : [ x1, y1 ], r0, -rc0, cw);
+          if (rc === rc0) {
+            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t21[1], "A", r0, ",", r0, " 0 ", cw ^ d3_svg_arcSweep(t21[1][0], t21[1][1], t03[1][0], t03[1][1]), ",", 1 - cw, " ", t03[1], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
+          } else {
+            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
+          }
+        } else {
+          path.push("L", x2, ",", y2);
+        }
+      } else {
+        path.push("M", x0, ",", y0);
+        if (x1 != null) path.push("A", r1, ",", r1, " 0 ", l1, ",", cw, " ", x1, ",", y1);
+        path.push("L", x2, ",", y2);
+        if (x3 != null) path.push("A", r0, ",", r0, " 0 ", l0, ",", 1 - cw, " ", x3, ",", y3);
+      }
+      path.push("Z");
+      return path.join("");
+    }
+    function circleSegment(r1, cw) {
+      return "M0," + r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + -r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + r1;
+    }
+    arc.innerRadius = function(v) {
+      if (!arguments.length) return innerRadius;
+      innerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.outerRadius = function(v) {
+      if (!arguments.length) return outerRadius;
+      outerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.cornerRadius = function(v) {
+      if (!arguments.length) return cornerRadius;
+      cornerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.padRadius = function(v) {
+      if (!arguments.length) return padRadius;
+      padRadius = v == d3_svg_arcAuto ? d3_svg_arcAuto : d3_functor(v);
+      return arc;
+    };
+    arc.startAngle = function(v) {
+      if (!arguments.length) return startAngle;
+      startAngle = d3_functor(v);
+      return arc;
+    };
+    arc.endAngle = function(v) {
+      if (!arguments.length) return endAngle;
+      endAngle = d3_functor(v);
+      return arc;
+    };
+    arc.padAngle = function(v) {
+      if (!arguments.length) return padAngle;
+      padAngle = d3_functor(v);
+      return arc;
+    };
+    arc.centroid = function() {
+      var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - halfπ;
+      return [ Math.cos(a) * r, Math.sin(a) * r ];
+    };
+    return arc;
+  };
+  var d3_svg_arcAuto = "auto";
+  function d3_svg_arcInnerRadius(d) {
+    return d.innerRadius;
+  }
+  function d3_svg_arcOuterRadius(d) {
+    return d.outerRadius;
+  }
+  function d3_svg_arcStartAngle(d) {
+    return d.startAngle;
+  }
+  function d3_svg_arcEndAngle(d) {
+    return d.endAngle;
+  }
+  function d3_svg_arcPadAngle(d) {
+    return d && d.padAngle;
+  }
+  function d3_svg_arcSweep(x0, y0, x1, y1) {
+    return (x0 - x1) * y0 - (y0 - y1) * x0 > 0 ? 0 : 1;
+  }
+  function d3_svg_arcCornerTangents(p0, p1, r1, rc, cw) {
+    var x01 = p0[0] - p1[0], y01 = p0[1] - p1[1], lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), ox = lo * y01, oy = -lo * x01, x1 = p0[0] + ox, y1 = p0[1] + oy, x2 = p1[0] + ox, y2 = p1[1] + oy, x3 = (x1 + x2) / 2, y3 = (y1 + y2) / 2, dx = x2 - x1, dy = y2 - y1, d2 = dx * dx + dy * dy, r = r1 - rc, D = x1 * y2 - x2 * y1, d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)), cx0 = (D * dy - dx * d) / d2, cy0 = (-D * dx - dy * d) / d2, cx1 = (D * dy + dx * d) / d2, cy1 = (-D * dx + dy * d) / d2, dx0 = cx0 - x3, dy0 = cy0 - y3, dx1 = cx1 - x3, dy1 = cy1 - y3;
+    if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;
+    return [ [ cx0 - ox, cy0 - oy ], [ cx0 * r1 / r, cy0 * r1 / r ] ];
+  }
+  function d3_svg_line(projection) {
+    var x = d3_geom_pointX, y = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
+    function line(data) {
+      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
+      function segment() {
+        segments.push("M", interpolate(projection(points), tension));
+      }
+      while (++i < n) {
+        if (defined.call(this, d = data[i], i)) {
+          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);
+        } else if (points.length) {
+          segment();
+          points = [];
+        }
+      }
+      if (points.length) segment();
+      return segments.length ? segments.join("") : null;
+    }
+    line.x = function(_) {
+      if (!arguments.length) return x;
+      x = _;
+      return line;
+    };
+    line.y = function(_) {
+      if (!arguments.length) return y;
+      y = _;
+      return line;
+    };
+    line.defined = function(_) {
+      if (!arguments.length) return defined;
+      defined = _;
+      return line;
+    };
+    line.interpolate = function(_) {
+      if (!arguments.length) return interpolateKey;
+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
+      return line;
+    };
+    line.tension = function(_) {
+      if (!arguments.length) return tension;
+      tension = _;
+      return line;
+    };
+    return line;
+  }
+  d3.svg.line = function() {
+    return d3_svg_line(d3_identity);
+  };
+  var d3_svg_lineInterpolators = d3.map({
+    linear: d3_svg_lineLinear,
+    "linear-closed": d3_svg_lineLinearClosed,
+    step: d3_svg_lineStep,
+    "step-before": d3_svg_lineStepBefore,
+    "step-after": d3_svg_lineStepAfter,
+    basis: d3_svg_lineBasis,
+    "basis-open": d3_svg_lineBasisOpen,
+    "basis-closed": d3_svg_lineBasisClosed,
+    bundle: d3_svg_lineBundle,
+    cardinal: d3_svg_lineCardinal,
+    "cardinal-open": d3_svg_lineCardinalOpen,
+    "cardinal-closed": d3_svg_lineCardinalClosed,
+    monotone: d3_svg_lineMonotone
+  });
+  d3_svg_lineInterpolators.forEach(function(key, value) {
+    value.key = key;
+    value.closed = /-closed$/.test(key);
+  });
+  function d3_svg_lineLinear(points) {
+    return points.length > 1 ? points.join("L") : points + "Z";
+  }
+  function d3_svg_lineLinearClosed(points) {
+    return points.join("L") + "Z";
+  }
+  function d3_svg_lineStep(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("H", (p[0] + (p = points[i])[0]) / 2, "V", p[1]);
+    if (n > 1) path.push("H", p[0]);
+    return path.join("");
+  }
+  function d3_svg_lineStepBefore(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
+    return path.join("");
+  }
+  function d3_svg_lineStepAfter(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
+    return path.join("");
+  }
+  function d3_svg_lineCardinalOpen(points, tension) {
+    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, -1), d3_svg_lineCardinalTangents(points, tension));
+  }
+  function d3_svg_lineCardinalClosed(points, tension) {
+    return points.length < 3 ? d3_svg_lineLinearClosed(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), 
+    points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));
+  }
+  function d3_svg_lineCardinal(points, tension) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
+  }
+  function d3_svg_lineHermite(points, tangents) {
+    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {
+      return d3_svg_lineLinear(points);
+    }
+    var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;
+    if (quad) {
+      path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];
+      p0 = points[1];
+      pi = 2;
+    }
+    if (tangents.length > 1) {
+      t = tangents[1];
+      p = points[pi];
+      pi++;
+      path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
+      for (var i = 2; i < tangents.length; i++, pi++) {
+        p = points[pi];
+        t = tangents[i];
+        path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
+      }
+    }
+    if (quad) {
+      var lp = points[pi];
+      path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];
+    }
+    return path;
+  }
+  function d3_svg_lineCardinalTangents(points, tension) {
+    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;
+    while (++i < n) {
+      p0 = p1;
+      p1 = p2;
+      p2 = points[i];
+      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);
+    }
+    return tangents;
+  }
+  function d3_svg_lineBasis(points) {
+    if (points.length < 3) return d3_svg_lineLinear(points);
+    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0, "L", d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
+    points.push(points[n - 1]);
+    while (++i <= n) {
+      pi = points[i];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    points.pop();
+    path.push("L", pi);
+    return path.join("");
+  }
+  function d3_svg_lineBasisOpen(points) {
+    if (points.length < 4) return d3_svg_lineLinear(points);
+    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];
+    while (++i < 3) {
+      pi = points[i];
+      px.push(pi[0]);
+      py.push(pi[1]);
+    }
+    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
+    --i;
+    while (++i < n) {
+      pi = points[i];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    return path.join("");
+  }
+  function d3_svg_lineBasisClosed(points) {
+    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];
+    while (++i < 4) {
+      pi = points[i % n];
+      px.push(pi[0]);
+      py.push(pi[1]);
+    }
+    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
+    --i;
+    while (++i < m) {
+      pi = points[i % n];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    return path.join("");
+  }
+  function d3_svg_lineBundle(points, tension) {
+    var n = points.length - 1;
+    if (n) {
+      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;
+      while (++i <= n) {
+        p = points[i];
+        t = i / n;
+        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
+        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
+      }
+    }
+    return d3_svg_lineBasis(points);
+  }
+  function d3_svg_lineDot4(a, b) {
+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
+  }
+  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];
+  function d3_svg_lineBasisBezier(path, x, y) {
+    path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
+  }
+  function d3_svg_lineSlope(p0, p1) {
+    return (p1[1] - p0[1]) / (p1[0] - p0[0]);
+  }
+  function d3_svg_lineFiniteDifferences(points) {
+    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);
+    while (++i < j) {
+      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;
+    }
+    m[i] = d;
+    return m;
+  }
+  function d3_svg_lineMonotoneTangents(points) {
+    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;
+    while (++i < j) {
+      d = d3_svg_lineSlope(points[i], points[i + 1]);
+      if (abs(d) < ε) {
+        m[i] = m[i + 1] = 0;
+      } else {
+        a = m[i] / d;
+        b = m[i + 1] / d;
+        s = a * a + b * b;
+        if (s > 9) {
+          s = d * 3 / Math.sqrt(s);
+          m[i] = s * a;
+          m[i + 1] = s * b;
+        }
+      }
+    }
+    i = -1;
+    while (++i <= j) {
+      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));
+      tangents.push([ s || 0, m[i] * s || 0 ]);
+    }
+    return tangents;
+  }
+  function d3_svg_lineMonotone(points) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
+  }
+  d3.svg.line.radial = function() {
+    var line = d3_svg_line(d3_svg_lineRadial);
+    line.radius = line.x, delete line.x;
+    line.angle = line.y, delete line.y;
+    return line;
+  };
+  function d3_svg_lineRadial(points) {
+    var point, i = -1, n = points.length, r, a;
+    while (++i < n) {
+      point = points[i];
+      r = point[0];
+      a = point[1] - halfπ;
+      point[0] = r * Math.cos(a);
+      point[1] = r * Math.sin(a);
+    }
+    return points;
+  }
+  function d3_svg_area(projection) {
+    var x0 = d3_geom_pointX, x1 = d3_geom_pointX, y0 = 0, y1 = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
+    function area(data) {
+      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {
+        return x;
+      } : d3_functor(x1), fy1 = y0 === y1 ? function() {
+        return y;
+      } : d3_functor(y1), x, y;
+      function segment() {
+        segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
+      }
+      while (++i < n) {
+        if (defined.call(this, d = data[i], i)) {
+          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);
+          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);
+        } else if (points0.length) {
+          segment();
+          points0 = [];
+          points1 = [];
+        }
+      }
+      if (points0.length) segment();
+      return segments.length ? segments.join("") : null;
+    }
+    area.x = function(_) {
+      if (!arguments.length) return x1;
+      x0 = x1 = _;
+      return area;
+    };
+    area.x0 = function(_) {
+      if (!arguments.length) return x0;
+      x0 = _;
+      return area;
+    };
+    area.x1 = function(_) {
+      if (!arguments.length) return x1;
+      x1 = _;
+      return area;
+    };
+    area.y = function(_) {
+      if (!arguments.length) return y1;
+      y0 = y1 = _;
+      return area;
+    };
+    area.y0 = function(_) {
+      if (!arguments.length) return y0;
+      y0 = _;
+      return area;
+    };
+    area.y1 = function(_) {
+      if (!arguments.length) return y1;
+      y1 = _;
+      return area;
+    };
+    area.defined = function(_) {
+      if (!arguments.length) return defined;
+      defined = _;
+      return area;
+    };
+    area.interpolate = function(_) {
+      if (!arguments.length) return interpolateKey;
+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
+      interpolateReverse = interpolate.reverse || interpolate;
+      L = interpolate.closed ? "M" : "L";
+      return area;
+    };
+    area.tension = function(_) {
+      if (!arguments.length) return tension;
+      tension = _;
+      return area;
+    };
+    return area;
+  }
+  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
+  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
+  d3.svg.area = function() {
+    return d3_svg_area(d3_identity);
+  };
+  d3.svg.area.radial = function() {
+    var area = d3_svg_area(d3_svg_lineRadial);
+    area.radius = area.x, delete area.x;
+    area.innerRadius = area.x0, delete area.x0;
+    area.outerRadius = area.x1, delete area.x1;
+    area.angle = area.y, delete area.y;
+    area.startAngle = area.y0, delete area.y0;
+    area.endAngle = area.y1, delete area.y1;
+    return area;
+  };
+  d3.svg.chord = function() {
+    var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
+    function chord(d, i) {
+      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);
+      return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";
+    }
+    function subgroup(self, f, d, i) {
+      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) - halfπ, a1 = endAngle.call(self, subgroup, i) - halfπ;
+      return {
+        r: r,
+        a0: a0,
+        a1: a1,
+        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],
+        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]
+      };
+    }
+    function equals(a, b) {
+      return a.a0 == b.a0 && a.a1 == b.a1;
+    }
+    function arc(r, p, a) {
+      return "A" + r + "," + r + " 0 " + +(a > π) + ",1 " + p;
+    }
+    function curve(r0, p0, r1, p1) {
+      return "Q 0,0 " + p1;
+    }
+    chord.radius = function(v) {
+      if (!arguments.length) return radius;
+      radius = d3_functor(v);
+      return chord;
+    };
+    chord.source = function(v) {
+      if (!arguments.length) return source;
+      source = d3_functor(v);
+      return chord;
+    };
+    chord.target = function(v) {
+      if (!arguments.length) return target;
+      target = d3_functor(v);
+      return chord;
+    };
+    chord.startAngle = function(v) {
+      if (!arguments.length) return startAngle;
+      startAngle = d3_functor(v);
+      return chord;
+    };
+    chord.endAngle = function(v) {
+      if (!arguments.length) return endAngle;
+      endAngle = d3_functor(v);
+      return chord;
+    };
+    return chord;
+  };
+  function d3_svg_chordRadius(d) {
+    return d.radius;
+  }
+  d3.svg.diagonal = function() {
+    var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection;
+    function diagonal(d, i) {
+      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {
+        x: p0.x,
+        y: m
+      }, {
+        x: p3.x,
+        y: m
+      }, p3 ];
+      p = p.map(projection);
+      return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
+    }
+    diagonal.source = function(x) {
+      if (!arguments.length) return source;
+      source = d3_functor(x);
+      return diagonal;
+    };
+    diagonal.target = function(x) {
+      if (!arguments.length) return target;
+      target = d3_functor(x);
+      return diagonal;
+    };
+    diagonal.projection = function(x) {
+      if (!arguments.length) return projection;
+      projection = x;
+      return diagonal;
+    };
+    return diagonal;
+  };
+  function d3_svg_diagonalProjection(d) {
+    return [ d.x, d.y ];
+  }
+  d3.svg.diagonal.radial = function() {
+    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;
+    diagonal.projection = function(x) {
+      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;
+    };
+    return diagonal;
+  };
+  function d3_svg_diagonalRadialProjection(projection) {
+    return function() {
+      var d = projection.apply(this, arguments), r = d[0], a = d[1] - halfπ;
+      return [ r * Math.cos(a), r * Math.sin(a) ];
+    };
+  }
+  d3.svg.symbol = function() {
+    var type = d3_svg_symbolType, size = d3_svg_symbolSize;
+    function symbol(d, i) {
+      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
+    }
+    symbol.type = function(x) {
+      if (!arguments.length) return type;
+      type = d3_functor(x);
+      return symbol;
+    };
+    symbol.size = function(x) {
+      if (!arguments.length) return size;
+      size = d3_functor(x);
+      return symbol;
+    };
+    return symbol;
+  };
+  function d3_svg_symbolSize() {
+    return 64;
+  }
+  function d3_svg_symbolType() {
+    return "circle";
+  }
+  function d3_svg_symbolCircle(size) {
+    var r = Math.sqrt(size / π);
+    return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
+  }
+  var d3_svg_symbols = d3.map({
+    circle: d3_svg_symbolCircle,
+    cross: function(size) {
+      var r = Math.sqrt(size / 5) / 2;
+      return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";
+    },
+    diamond: function(size) {
+      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;
+      return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";
+    },
+    square: function(size) {
+      var r = Math.sqrt(size) / 2;
+      return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";
+    },
+    "triangle-down": function(size) {
+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
+      return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";
+    },
+    "triangle-up": function(size) {
+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
+      return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";
+    }
+  });
+  d3.svg.symbolTypes = d3_svg_symbols.keys();
+  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians);
+  d3_selectionPrototype.transition = function(name) {
+    var id = d3_transitionInheritId || ++d3_transitionId, ns = d3_transitionNamespace(name), subgroups = [], subgroup, node, transition = d3_transitionInherit || {
+      time: Date.now(),
+      ease: d3_ease_cubicInOut,
+      delay: 0,
+      duration: 250
+    };
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) d3_transitionNode(node, i, ns, id, transition);
+        subgroup.push(node);
+      }
+    }
+    return d3_transition(subgroups, ns, id);
+  };
+  d3_selectionPrototype.interrupt = function(name) {
+    return this.each(name == null ? d3_selection_interrupt : d3_selection_interruptNS(d3_transitionNamespace(name)));
+  };
+  var d3_selection_interrupt = d3_selection_interruptNS(d3_transitionNamespace());
+  function d3_selection_interruptNS(ns) {
+    return function() {
+      var lock, activeId, active;
+      if ((lock = this[ns]) && (active = lock[activeId = lock.active])) {
+        active.timer.c = null;
+        active.timer.t = NaN;
+        if (--lock.count) delete lock[activeId]; else delete this[ns];
+        lock.active += .5;
+        active.event && active.event.interrupt.call(this, this.__data__, active.index);
+      }
+    };
+  }
+  function d3_transition(groups, ns, id) {
+    d3_subclass(groups, d3_transitionPrototype);
+    groups.namespace = ns;
+    groups.id = id;
+    return groups;
+  }
+  var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit;
+  d3_transitionPrototype.call = d3_selectionPrototype.call;
+  d3_transitionPrototype.empty = d3_selectionPrototype.empty;
+  d3_transitionPrototype.node = d3_selectionPrototype.node;
+  d3_transitionPrototype.size = d3_selectionPrototype.size;
+  d3.transition = function(selection, name) {
+    return selection && selection.transition ? d3_transitionInheritId ? selection.transition(name) : selection : d3.selection().transition(selection);
+  };
+  d3.transition.prototype = d3_transitionPrototype;
+  d3_transitionPrototype.select = function(selector) {
+    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnode, node;
+    selector = d3_selection_selector(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i, j))) {
+          if ("__data__" in node) subnode.__data__ = node.__data__;
+          d3_transitionNode(subnode, i, ns, id, node[ns][id]);
+          subgroup.push(subnode);
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_transition(subgroups, ns, id);
+  };
+  d3_transitionPrototype.selectAll = function(selector) {
+    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnodes, node, subnode, transition;
+    selector = d3_selection_selectorAll(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          transition = node[ns][id];
+          subnodes = selector.call(node, node.__data__, i, j);
+          subgroups.push(subgroup = []);
+          for (var k = -1, o = subnodes.length; ++k < o; ) {
+            if (subnode = subnodes[k]) d3_transitionNode(subnode, k, ns, id, transition);
+            subgroup.push(subnode);
+          }
+        }
+      }
+    }
+    return d3_transition(subgroups, ns, id);
+  };
+  d3_transitionPrototype.filter = function(filter) {
+    var subgroups = [], subgroup, group, node;
+    if (typeof filter !== "function") filter = d3_selection_filter(filter);
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
+          subgroup.push(node);
+        }
+      }
+    }
+    return d3_transition(subgroups, this.namespace, this.id);
+  };
+  d3_transitionPrototype.tween = function(name, tween) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 2) return this.node()[ns][id].tween.get(name);
+    return d3_selection_each(this, tween == null ? function(node) {
+      node[ns][id].tween.remove(name);
+    } : function(node) {
+      node[ns][id].tween.set(name, tween);
+    });
+  };
+  function d3_transition_tween(groups, name, value, tween) {
+    var id = groups.id, ns = groups.namespace;
+    return d3_selection_each(groups, typeof value === "function" ? function(node, i, j) {
+      node[ns][id].tween.set(name, tween(value.call(node, node.__data__, i, j)));
+    } : (value = tween(value), function(node) {
+      node[ns][id].tween.set(name, value);
+    }));
+  }
+  d3_transitionPrototype.attr = function(nameNS, value) {
+    if (arguments.length < 2) {
+      for (value in nameNS) this.attr(value, nameNS[value]);
+      return this;
+    }
+    var interpolate = nameNS == "transform" ? d3_interpolateTransform : d3_interpolate, name = d3.ns.qualify(nameNS);
+    function attrNull() {
+      this.removeAttribute(name);
+    }
+    function attrNullNS() {
+      this.removeAttributeNS(name.space, name.local);
+    }
+    function attrTween(b) {
+      return b == null ? attrNull : (b += "", function() {
+        var a = this.getAttribute(name), i;
+        return a !== b && (i = interpolate(a, b), function(t) {
+          this.setAttribute(name, i(t));
+        });
+      });
+    }
+    function attrTweenNS(b) {
+      return b == null ? attrNullNS : (b += "", function() {
+        var a = this.getAttributeNS(name.space, name.local), i;
+        return a !== b && (i = interpolate(a, b), function(t) {
+          this.setAttributeNS(name.space, name.local, i(t));
+        });
+      });
+    }
+    return d3_transition_tween(this, "attr." + nameNS, value, name.local ? attrTweenNS : attrTween);
+  };
+  d3_transitionPrototype.attrTween = function(nameNS, tween) {
+    var name = d3.ns.qualify(nameNS);
+    function attrTween(d, i) {
+      var f = tween.call(this, d, i, this.getAttribute(name));
+      return f && function(t) {
+        this.setAttribute(name, f(t));
+      };
+    }
+    function attrTweenNS(d, i) {
+      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
+      return f && function(t) {
+        this.setAttributeNS(name.space, name.local, f(t));
+      };
+    }
+    return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
+  };
+  d3_transitionPrototype.style = function(name, value, priority) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof name !== "string") {
+        if (n < 2) value = "";
+        for (priority in name) this.style(priority, name[priority], value);
+        return this;
+      }
+      priority = "";
+    }
+    function styleNull() {
+      this.style.removeProperty(name);
+    }
+    function styleString(b) {
+      return b == null ? styleNull : (b += "", function() {
+        var a = d3_window(this).getComputedStyle(this, null).getPropertyValue(name), i;
+        return a !== b && (i = d3_interpolate(a, b), function(t) {
+          this.style.setProperty(name, i(t), priority);
+        });
+      });
+    }
+    return d3_transition_tween(this, "style." + name, value, styleString);
+  };
+  d3_transitionPrototype.styleTween = function(name, tween, priority) {
+    if (arguments.length < 3) priority = "";
+    function styleTween(d, i) {
+      var f = tween.call(this, d, i, d3_window(this).getComputedStyle(this, null).getPropertyValue(name));
+      return f && function(t) {
+        this.style.setProperty(name, f(t), priority);
+      };
+    }
+    return this.tween("style." + name, styleTween);
+  };
+  d3_transitionPrototype.text = function(value) {
+    return d3_transition_tween(this, "text", value, d3_transition_text);
+  };
+  function d3_transition_text(b) {
+    if (b == null) b = "";
+    return function() {
+      this.textContent = b;
+    };
+  }
+  d3_transitionPrototype.remove = function() {
+    var ns = this.namespace;
+    return this.each("end.transition", function() {
+      var p;
+      if (this[ns].count < 2 && (p = this.parentNode)) p.removeChild(this);
+    });
+  };
+  d3_transitionPrototype.ease = function(value) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 1) return this.node()[ns][id].ease;
+    if (typeof value !== "function") value = d3.ease.apply(d3, arguments);
+    return d3_selection_each(this, function(node) {
+      node[ns][id].ease = value;
+    });
+  };
+  d3_transitionPrototype.delay = function(value) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 1) return this.node()[ns][id].delay;
+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
+      node[ns][id].delay = +value.call(node, node.__data__, i, j);
+    } : (value = +value, function(node) {
+      node[ns][id].delay = value;
+    }));
+  };
+  d3_transitionPrototype.duration = function(value) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 1) return this.node()[ns][id].duration;
+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
+      node[ns][id].duration = Math.max(1, value.call(node, node.__data__, i, j));
+    } : (value = Math.max(1, value), function(node) {
+      node[ns][id].duration = value;
+    }));
+  };
+  d3_transitionPrototype.each = function(type, listener) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 2) {
+      var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId;
+      try {
+        d3_transitionInheritId = id;
+        d3_selection_each(this, function(node, i, j) {
+          d3_transitionInherit = node[ns][id];
+          type.call(node, node.__data__, i, j);
+        });
+      } finally {
+        d3_transitionInherit = inherit;
+        d3_transitionInheritId = inheritId;
+      }
+    } else {
+      d3_selection_each(this, function(node) {
+        var transition = node[ns][id];
+        (transition.event || (transition.event = d3.dispatch("start", "end", "interrupt"))).on(type, listener);
+      });
+    }
+    return this;
+  };
+  d3_transitionPrototype.transition = function() {
+    var id0 = this.id, id1 = ++d3_transitionId, ns = this.namespace, subgroups = [], subgroup, group, node, transition;
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        if (node = group[i]) {
+          transition = node[ns][id0];
+          d3_transitionNode(node, i, ns, id1, {
+            time: transition.time,
+            ease: transition.ease,
+            delay: transition.delay + transition.duration,
+            duration: transition.duration
+          });
+        }
+        subgroup.push(node);
+      }
+    }
+    return d3_transition(subgroups, ns, id1);
+  };
+  function d3_transitionNamespace(name) {
+    return name == null ? "__transition__" : "__transition_" + name + "__";
+  }
+  function d3_transitionNode(node, i, ns, id, inherit) {
+    var lock = node[ns] || (node[ns] = {
+      active: 0,
+      count: 0
+    }), transition = lock[id], time, timer, duration, ease, tweens;
+    function schedule(elapsed) {
+      var delay = transition.delay;
+      timer.t = delay + time;
+      if (delay <= elapsed) return start(elapsed - delay);
+      timer.c = start;
+    }
+    function start(elapsed) {
+      var activeId = lock.active, active = lock[activeId];
+      if (active) {
+        active.timer.c = null;
+        active.timer.t = NaN;
+        --lock.count;
+        delete lock[activeId];
+        active.event && active.event.interrupt.call(node, node.__data__, active.index);
+      }
+      for (var cancelId in lock) {
+        if (+cancelId < id) {
+          var cancel = lock[cancelId];
+          cancel.timer.c = null;
+          cancel.timer.t = NaN;
+          --lock.count;
+          delete lock[cancelId];
+        }
+      }
+      timer.c = tick;
+      d3_timer(function() {
+        if (timer.c && tick(elapsed || 1)) {
+          timer.c = null;
+          timer.t = NaN;
+        }
+        return 1;
+      }, 0, time);
+      lock.active = id;
+      transition.event && transition.event.start.call(node, node.__data__, i);
+      tweens = [];
+      transition.tween.forEach(function(key, value) {
+        if (value = value.call(node, node.__data__, i)) {
+          tweens.push(value);
+        }
+      });
+      ease = transition.ease;
+      duration = transition.duration;
+    }
+    function tick(elapsed) {
+      var t = elapsed / duration, e = ease(t), n = tweens.length;
+      while (n > 0) {
+        tweens[--n].call(node, e);
+      }
+      if (t >= 1) {
+        transition.event && transition.event.end.call(node, node.__data__, i);
+        if (--lock.count) delete lock[id]; else delete node[ns];
+        return 1;
+      }
+    }
+    if (!transition) {
+      time = inherit.time;
+      timer = d3_timer(schedule, 0, time);
+      transition = lock[id] = {
+        tween: new d3_Map(),
+        time: time,
+        timer: timer,
+        delay: inherit.delay,
+        duration: inherit.duration,
+        ease: inherit.ease,
+        index: i
+      };
+      inherit = null;
+      ++lock.count;
+    }
+  }
+  d3.svg.axis = function() {
+    var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_;
+    function axis(g) {
+      g.each(function() {
+        var g = d3.select(this);
+        var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = scale.copy();
+        var ticks = tickValues == null ? scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain() : tickValues, tickFormat = tickFormat_ == null ? scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity : tickFormat_, tick = g.selectAll(".tick").data(ticks, scale1), tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", ε), tickExit = d3.transition(tick.exit()).style("opacity", ε).remove(), tickUpdate = d3.transition(tick.order()).style("opacity", 1), tickSpacing = Math.max(innerTickSize, 0) + tickPadding, tickTransform;
+        var range = d3_scaleRange(scale1), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"), 
+        d3.transition(path));
+        tickEnter.append("line");
+        tickEnter.append("text");
+        var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text"), sign = orient === "top" || orient === "left" ? -1 : 1, x1, x2, y1, y2;
+        if (orient === "bottom" || orient === "top") {
+          tickTransform = d3_svg_axisX, x1 = "x", y1 = "y", x2 = "x2", y2 = "y2";
+          text.attr("dy", sign < 0 ? "0em" : ".71em").style("text-anchor", "middle");
+          pathUpdate.attr("d", "M" + range[0] + "," + sign * outerTickSize + "V0H" + range[1] + "V" + sign * outerTickSize);
+        } else {
+          tickTransform = d3_svg_axisY, x1 = "y", y1 = "x", x2 = "y2", y2 = "x2";
+          text.attr("dy", ".32em").style("text-anchor", sign < 0 ? "end" : "start");
+          pathUpdate.attr("d", "M" + sign * outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + sign * outerTickSize);
+        }
+        lineEnter.attr(y2, sign * innerTickSize);
+        textEnter.attr(y1, sign * tickSpacing);
+        lineUpdate.attr(x2, 0).attr(y2, sign * innerTickSize);
+        textUpdate.attr(x1, 0).attr(y1, sign * tickSpacing);
+        if (scale1.rangeBand) {
+          var x = scale1, dx = x.rangeBand() / 2;
+          scale0 = scale1 = function(d) {
+            return x(d) + dx;
+          };
+        } else if (scale0.rangeBand) {
+          scale0 = scale1;
+        } else {
+          tickExit.call(tickTransform, scale1, scale0);
+        }
+        tickEnter.call(tickTransform, scale0, scale1);
+        tickUpdate.call(tickTransform, scale1, scale1);
+      });
+    }
+    axis.scale = function(x) {
+      if (!arguments.length) return scale;
+      scale = x;
+      return axis;
+    };
+    axis.orient = function(x) {
+      if (!arguments.length) return orient;
+      orient = x in d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient;
+      return axis;
+    };
+    axis.ticks = function() {
+      if (!arguments.length) return tickArguments_;
+      tickArguments_ = d3_array(arguments);
+      return axis;
+    };
+    axis.tickValues = function(x) {
+      if (!arguments.length) return tickValues;
+      tickValues = x;
+      return axis;
+    };
+    axis.tickFormat = function(x) {
+      if (!arguments.length) return tickFormat_;
+      tickFormat_ = x;
+      return axis;
+    };
+    axis.tickSize = function(x) {
+      var n = arguments.length;
+      if (!n) return innerTickSize;
+      innerTickSize = +x;
+      outerTickSize = +arguments[n - 1];
+      return axis;
+    };
+    axis.innerTickSize = function(x) {
+      if (!arguments.length) return innerTickSize;
+      innerTickSize = +x;
+      return axis;
+    };
+    axis.outerTickSize = function(x) {
+      if (!arguments.length) return outerTickSize;
+      outerTickSize = +x;
+      return axis;
+    };
+    axis.tickPadding = function(x) {
+      if (!arguments.length) return tickPadding;
+      tickPadding = +x;
+      return axis;
+    };
+    axis.tickSubdivide = function() {
+      return arguments.length && axis;
+    };
+    return axis;
+  };
+  var d3_svg_axisDefaultOrient = "bottom", d3_svg_axisOrients = {
+    top: 1,
+    right: 1,
+    bottom: 1,
+    left: 1
+  };
+  function d3_svg_axisX(selection, x0, x1) {
+    selection.attr("transform", function(d) {
+      var v0 = x0(d);
+      return "translate(" + (isFinite(v0) ? v0 : x1(d)) + ",0)";
+    });
+  }
+  function d3_svg_axisY(selection, y0, y1) {
+    selection.attr("transform", function(d) {
+      var v0 = y0(d);
+      return "translate(0," + (isFinite(v0) ? v0 : y1(d)) + ")";
+    });
+  }
+  d3.svg.brush = function() {
+    var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, xExtent = [ 0, 0 ], yExtent = [ 0, 0 ], xExtentDomain, yExtentDomain, xClamp = true, yClamp = true, resizes = d3_svg_brushResizes[0];
+    function brush(g) {
+      g.each(function() {
+        var g = d3.select(this).style("pointer-events", "all").style("-webkit-tap-highlight-color", "rgba(0,0,0,0)").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
+        var background = g.selectAll(".background").data([ 0 ]);
+        background.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
+        g.selectAll(".extent").data([ 0 ]).enter().append("rect").attr("class", "extent").style("cursor", "move");
+        var resize = g.selectAll(".resize").data(resizes, d3_identity);
+        resize.exit().remove();
+        resize.enter().append("g").attr("class", function(d) {
+          return "resize " + d;
+        }).style("cursor", function(d) {
+          return d3_svg_brushCursor[d];
+        }).append("rect").attr("x", function(d) {
+          return /[ew]$/.test(d) ? -3 : null;
+        }).attr("y", function(d) {
+          return /^[ns]/.test(d) ? -3 : null;
+        }).attr("width", 6).attr("height", 6).style("visibility", "hidden");
+        resize.style("display", brush.empty() ? "none" : null);
+        var gUpdate = d3.transition(g), backgroundUpdate = d3.transition(background), range;
+        if (x) {
+          range = d3_scaleRange(x);
+          backgroundUpdate.attr("x", range[0]).attr("width", range[1] - range[0]);
+          redrawX(gUpdate);
+        }
+        if (y) {
+          range = d3_scaleRange(y);
+          backgroundUpdate.attr("y", range[0]).attr("height", range[1] - range[0]);
+          redrawY(gUpdate);
+        }
+        redraw(gUpdate);
+      });
+    }
+    brush.event = function(g) {
+      g.each(function() {
+        var event_ = event.of(this, arguments), extent1 = {
+          x: xExtent,
+          y: yExtent,
+          i: xExtentDomain,
+          j: yExtentDomain
+        }, extent0 = this.__chart__ || extent1;
+        this.__chart__ = extent1;
+        if (d3_transitionInheritId) {
+          d3.select(this).transition().each("start.brush", function() {
+            xExtentDomain = extent0.i;
+            yExtentDomain = extent0.j;
+            xExtent = extent0.x;
+            yExtent = extent0.y;
+            event_({
+              type: "brushstart"
+            });
+          }).tween("brush:brush", function() {
+            var xi = d3_interpolateArray(xExtent, extent1.x), yi = d3_interpolateArray(yExtent, extent1.y);
+            xExtentDomain = yExtentDomain = null;
+            return function(t) {
+              xExtent = extent1.x = xi(t);
+              yExtent = extent1.y = yi(t);
+              event_({
+                type: "brush",
+                mode: "resize"
+              });
+            };
+          }).each("end.brush", function() {
+            xExtentDomain = extent1.i;
+            yExtentDomain = extent1.j;
+            event_({
+              type: "brush",
+              mode: "resize"
+            });
+            event_({
+              type: "brushend"
+            });
+          });
+        } else {
+          event_({
+            type: "brushstart"
+          });
+          event_({
+            type: "brush",
+            mode: "resize"
+          });
+          event_({
+            type: "brushend"
+          });
+        }
+      });
+    };
+    function redraw(g) {
+      g.selectAll(".resize").attr("transform", function(d) {
+        return "translate(" + xExtent[+/e$/.test(d)] + "," + yExtent[+/^s/.test(d)] + ")";
+      });
+    }
+    function redrawX(g) {
+      g.select(".extent").attr("x", xExtent[0]);
+      g.selectAll(".extent,.n>rect,.s>rect").attr("width", xExtent[1] - xExtent[0]);
+    }
+    function redrawY(g) {
+      g.select(".extent").attr("y", yExtent[0]);
+      g.selectAll(".extent,.e>rect,.w>rect").attr("height", yExtent[1] - yExtent[0]);
+    }
+    function brushstart() {
+      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), dragRestore = d3_event_dragSuppress(target), center, origin = d3.mouse(target), offset;
+      var w = d3.select(d3_window(target)).on("keydown.brush", keydown).on("keyup.brush", keyup);
+      if (d3.event.changedTouches) {
+        w.on("touchmove.brush", brushmove).on("touchend.brush", brushend);
+      } else {
+        w.on("mousemove.brush", brushmove).on("mouseup.brush", brushend);
+      }
+      g.interrupt().selectAll("*").interrupt();
+      if (dragging) {
+        origin[0] = xExtent[0] - origin[0];
+        origin[1] = yExtent[0] - origin[1];
+      } else if (resizing) {
+        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
+        offset = [ xExtent[1 - ex] - origin[0], yExtent[1 - ey] - origin[1] ];
+        origin[0] = xExtent[ex];
+        origin[1] = yExtent[ey];
+      } else if (d3.event.altKey) center = origin.slice();
+      g.style("pointer-events", "none").selectAll(".resize").style("display", null);
+      d3.select("body").style("cursor", eventTarget.style("cursor"));
+      event_({
+        type: "brushstart"
+      });
+      brushmove();
+      function keydown() {
+        if (d3.event.keyCode == 32) {
+          if (!dragging) {
+            center = null;
+            origin[0] -= xExtent[1];
+            origin[1] -= yExtent[1];
+            dragging = 2;
+          }
+          d3_eventPreventDefault();
+        }
+      }
+      function keyup() {
+        if (d3.event.keyCode == 32 && dragging == 2) {
+          origin[0] += xExtent[1];
+          origin[1] += yExtent[1];
+          dragging = 0;
+          d3_eventPreventDefault();
+        }
+      }
+      function brushmove() {
+        var point = d3.mouse(target), moved = false;
+        if (offset) {
+          point[0] += offset[0];
+          point[1] += offset[1];
+        }
+        if (!dragging) {
+          if (d3.event.altKey) {
+            if (!center) center = [ (xExtent[0] + xExtent[1]) / 2, (yExtent[0] + yExtent[1]) / 2 ];
+            origin[0] = xExtent[+(point[0] < center[0])];
+            origin[1] = yExtent[+(point[1] < center[1])];
+          } else center = null;
+        }
+        if (resizingX && move1(point, x, 0)) {
+          redrawX(g);
+          moved = true;
+        }
+        if (resizingY && move1(point, y, 1)) {
+          redrawY(g);
+          moved = true;
+        }
+        if (moved) {
+          redraw(g);
+          event_({
+            type: "brush",
+            mode: dragging ? "move" : "resize"
+          });
+        }
+      }
+      function move1(point, scale, i) {
+        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], extent = i ? yExtent : xExtent, size = extent[1] - extent[0], min, max;
+        if (dragging) {
+          r0 -= position;
+          r1 -= size + position;
+        }
+        min = (i ? yClamp : xClamp) ? Math.max(r0, Math.min(r1, point[i])) : point[i];
+        if (dragging) {
+          max = (min += position) + size;
+        } else {
+          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
+          if (position < min) {
+            max = min;
+            min = position;
+          } else {
+            max = position;
+          }
+        }
+        if (extent[0] != min || extent[1] != max) {
+          if (i) yExtentDomain = null; else xExtentDomain = null;
+          extent[0] = min;
+          extent[1] = max;
+          return true;
+        }
+      }
+      function brushend() {
+        brushmove();
+        g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
+        d3.select("body").style("cursor", null);
+        w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);
+        dragRestore();
+        event_({
+          type: "brushend"
+        });
+      }
+    }
+    brush.x = function(z) {
+      if (!arguments.length) return x;
+      x = z;
+      resizes = d3_svg_brushResizes[!x << 1 | !y];
+      return brush;
+    };
+    brush.y = function(z) {
+      if (!arguments.length) return y;
+      y = z;
+      resizes = d3_svg_brushResizes[!x << 1 | !y];
+      return brush;
+    };
+    brush.clamp = function(z) {
+      if (!arguments.length) return x && y ? [ xClamp, yClamp ] : x ? xClamp : y ? yClamp : null;
+      if (x && y) xClamp = !!z[0], yClamp = !!z[1]; else if (x) xClamp = !!z; else if (y) yClamp = !!z;
+      return brush;
+    };
+    brush.extent = function(z) {
+      var x0, x1, y0, y1, t;
+      if (!arguments.length) {
+        if (x) {
+          if (xExtentDomain) {
+            x0 = xExtentDomain[0], x1 = xExtentDomain[1];
+          } else {
+            x0 = xExtent[0], x1 = xExtent[1];
+            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
+            if (x1 < x0) t = x0, x0 = x1, x1 = t;
+          }
+        }
+        if (y) {
+          if (yExtentDomain) {
+            y0 = yExtentDomain[0], y1 = yExtentDomain[1];
+          } else {
+            y0 = yExtent[0], y1 = yExtent[1];
+            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
+            if (y1 < y0) t = y0, y0 = y1, y1 = t;
+          }
+        }
+        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];
+      }
+      if (x) {
+        x0 = z[0], x1 = z[1];
+        if (y) x0 = x0[0], x1 = x1[0];
+        xExtentDomain = [ x0, x1 ];
+        if (x.invert) x0 = x(x0), x1 = x(x1);
+        if (x1 < x0) t = x0, x0 = x1, x1 = t;
+        if (x0 != xExtent[0] || x1 != xExtent[1]) xExtent = [ x0, x1 ];
+      }
+      if (y) {
+        y0 = z[0], y1 = z[1];
+        if (x) y0 = y0[1], y1 = y1[1];
+        yExtentDomain = [ y0, y1 ];
+        if (y.invert) y0 = y(y0), y1 = y(y1);
+        if (y1 < y0) t = y0, y0 = y1, y1 = t;
+        if (y0 != yExtent[0] || y1 != yExtent[1]) yExtent = [ y0, y1 ];
+      }
+      return brush;
+    };
+    brush.clear = function() {
+      if (!brush.empty()) {
+        xExtent = [ 0, 0 ], yExtent = [ 0, 0 ];
+        xExtentDomain = yExtentDomain = null;
+      }
+      return brush;
+    };
+    brush.empty = function() {
+      return !!x && xExtent[0] == xExtent[1] || !!y && yExtent[0] == yExtent[1];
+    };
+    return d3.rebind(brush, event, "on");
+  };
+  var d3_svg_brushCursor = {
+    n: "ns-resize",
+    e: "ew-resize",
+    s: "ns-resize",
+    w: "ew-resize",
+    nw: "nwse-resize",
+    ne: "nesw-resize",
+    se: "nwse-resize",
+    sw: "nesw-resize"
+  };
+  var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];
+  var d3_time_format = d3_time.format = d3_locale_enUS.timeFormat;
+  var d3_time_formatUtc = d3_time_format.utc;
+  var d3_time_formatIso = d3_time_formatUtc("%Y-%m-%dT%H:%M:%S.%LZ");
+  d3_time_format.iso = Date.prototype.toISOString && +new Date("2000-01-01T00:00:00.000Z") ? d3_time_formatIsoNative : d3_time_formatIso;
+  function d3_time_formatIsoNative(date) {
+    return date.toISOString();
+  }
+  d3_time_formatIsoNative.parse = function(string) {
+    var date = new Date(string);
+    return isNaN(date) ? null : date;
+  };
+  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
+  d3_time.second = d3_time_interval(function(date) {
+    return new d3_date(Math.floor(date / 1e3) * 1e3);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 1e3);
+  }, function(date) {
+    return date.getSeconds();
+  });
+  d3_time.seconds = d3_time.second.range;
+  d3_time.seconds.utc = d3_time.second.utc.range;
+  d3_time.minute = d3_time_interval(function(date) {
+    return new d3_date(Math.floor(date / 6e4) * 6e4);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 6e4);
+  }, function(date) {
+    return date.getMinutes();
+  });
+  d3_time.minutes = d3_time.minute.range;
+  d3_time.minutes.utc = d3_time.minute.utc.range;
+  d3_time.hour = d3_time_interval(function(date) {
+    var timezone = date.getTimezoneOffset() / 60;
+    return new d3_date((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 36e5);
+  }, function(date) {
+    return date.getHours();
+  });
+  d3_time.hours = d3_time.hour.range;
+  d3_time.hours.utc = d3_time.hour.utc.range;
+  d3_time.month = d3_time_interval(function(date) {
+    date = d3_time.day(date);
+    date.setDate(1);
+    return date;
+  }, function(date, offset) {
+    date.setMonth(date.getMonth() + offset);
+  }, function(date) {
+    return date.getMonth();
+  });
+  d3_time.months = d3_time.month.range;
+  d3_time.months.utc = d3_time.month.utc.range;
+  function d3_time_scale(linear, methods, format) {
+    function scale(x) {
+      return linear(x);
+    }
+    scale.invert = function(x) {
+      return d3_time_scaleDate(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
+      linear.domain(x);
+      return scale;
+    };
+    function tickMethod(extent, count) {
+      var span = extent[1] - extent[0], target = span / count, i = d3.bisect(d3_time_scaleSteps, target);
+      return i == d3_time_scaleSteps.length ? [ methods.year, d3_scale_linearTickRange(extent.map(function(d) {
+        return d / 31536e6;
+      }), count)[2] ] : !i ? [ d3_time_scaleMilliseconds, d3_scale_linearTickRange(extent, count)[2] ] : methods[target / d3_time_scaleSteps[i - 1] < d3_time_scaleSteps[i] / target ? i - 1 : i];
+    }
+    scale.nice = function(interval, skip) {
+      var domain = scale.domain(), extent = d3_scaleExtent(domain), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" && tickMethod(extent, interval);
+      if (method) interval = method[0], skip = method[1];
+      function skipped(date) {
+        return !isNaN(date) && !interval.range(date, d3_time_scaleDate(+date + 1), skip).length;
+      }
+      return scale.domain(d3_scale_nice(domain, skip > 1 ? {
+        floor: function(date) {
+          while (skipped(date = interval.floor(date))) date = d3_time_scaleDate(date - 1);
+          return date;
+        },
+        ceil: function(date) {
+          while (skipped(date = interval.ceil(date))) date = d3_time_scaleDate(+date + 1);
+          return date;
+        }
+      } : interval));
+    };
+    scale.ticks = function(interval, skip) {
+      var extent = d3_scaleExtent(scale.domain()), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" ? tickMethod(extent, interval) : !interval.range && [ {
+        range: interval
+      }, skip ];
+      if (method) interval = method[0], skip = method[1];
+      return interval.range(extent[0], d3_time_scaleDate(+extent[1] + 1), skip < 1 ? 1 : skip);
+    };
+    scale.tickFormat = function() {
+      return format;
+    };
+    scale.copy = function() {
+      return d3_time_scale(linear.copy(), methods, format);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  function d3_time_scaleDate(t) {
+    return new Date(t);
+  }
+  var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];
+  var d3_time_scaleLocalMethods = [ [ d3_time.second, 1 ], [ d3_time.second, 5 ], [ d3_time.second, 15 ], [ d3_time.second, 30 ], [ d3_time.minute, 1 ], [ d3_time.minute, 5 ], [ d3_time.minute, 15 ], [ d3_time.minute, 30 ], [ d3_time.hour, 1 ], [ d3_time.hour, 3 ], [ d3_time.hour, 6 ], [ d3_time.hour, 12 ], [ d3_time.day, 1 ], [ d3_time.day, 2 ], [ d3_time.week, 1 ], [ d3_time.month, 1 ], [ d3_time.month, 3 ], [ d3_time.year, 1 ] ];
+  var d3_time_scaleLocalFormat = d3_time_format.multi([ [ ".%L", function(d) {
+    return d.getMilliseconds();
+  } ], [ ":%S", function(d) {
+    return d.getSeconds();
+  } ], [ "%I:%M", function(d) {
+    return d.getMinutes();
+  } ], [ "%I %p", function(d) {
+    return d.getHours();
+  } ], [ "%a %d", function(d) {
+    return d.getDay() && d.getDate() != 1;
+  } ], [ "%b %d", function(d) {
+    return d.getDate() != 1;
+  } ], [ "%B", function(d) {
+    return d.getMonth();
+  } ], [ "%Y", d3_true ] ]);
+  var d3_time_scaleMilliseconds = {
+    range: function(start, stop, step) {
+      return d3.range(Math.ceil(start / step) * step, +stop, step).map(d3_time_scaleDate);
+    },
+    floor: d3_identity,
+    ceil: d3_identity
+  };
+  d3_time_scaleLocalMethods.year = d3_time.year;
+  d3_time.scale = function() {
+    return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
+  };
+  var d3_time_scaleUtcMethods = d3_time_scaleLocalMethods.map(function(m) {
+    return [ m[0].utc, m[1] ];
+  });
+  var d3_time_scaleUtcFormat = d3_time_formatUtc.multi([ [ ".%L", function(d) {
+    return d.getUTCMilliseconds();
+  } ], [ ":%S", function(d) {
+    return d.getUTCSeconds();
+  } ], [ "%I:%M", function(d) {
+    return d.getUTCMinutes();
+  } ], [ "%I %p", function(d) {
+    return d.getUTCHours();
+  } ], [ "%a %d", function(d) {
+    return d.getUTCDay() && d.getUTCDate() != 1;
+  } ], [ "%b %d", function(d) {
+    return d.getUTCDate() != 1;
+  } ], [ "%B", function(d) {
+    return d.getUTCMonth();
+  } ], [ "%Y", d3_true ] ]);
+  d3_time_scaleUtcMethods.year = d3_time.year.utc;
+  d3_time.scale.utc = function() {
+    return d3_time_scale(d3.scale.linear(), d3_time_scaleUtcMethods, d3_time_scaleUtcFormat);
+  };
+  d3.text = d3_xhrType(function(request) {
+    return request.responseText;
+  });
+  d3.json = function(url, callback) {
+    return d3_xhr(url, "application/json", d3_json, callback);
+  };
+  function d3_json(request) {
+    return JSON.parse(request.responseText);
+  }
+  d3.html = function(url, callback) {
+    return d3_xhr(url, "text/html", d3_html, callback);
+  };
+  function d3_html(request) {
+    var range = d3_document.createRange();
+    range.selectNode(d3_document.body);
+    return range.createContextualFragment(request.responseText);
+  }
+  d3.xml = d3_xhrType(function(request) {
+    return request.responseXML;
+  });
+  if (true) this.d3 = d3, !(__WEBPACK_AMD_DEFINE_FACTORY__ = (d3),
+				__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
+				(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :
+				__WEBPACK_AMD_DEFINE_FACTORY__),
+				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)); else if (typeof module === "object" && module.exports) module.exports = d3; else this.d3 = d3;
+}();
+
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+module.exports = {
+    /**
+     * Standardize all missing data in calcdata to use undefined
+     * never null or NaN.
+     * That way we can use !==undefined, or !== BADNUM,
+     * to test for real data
+     */
+    BADNUM: undefined,
+
+    /*
+     * Limit certain operations to well below floating point max value
+     * to avoid glitches: Make sure that even when you multiply it by the
+     * number of pixels on a giant screen it still works
+     */
+    FP_SAFE: Number.MAX_VALUE / 10000,
+
+    /*
+     * conversion of date units to milliseconds
+     * year and month constants are marked "AVG"
+     * to remind us that not all years and months
+     * have the same length
+     */
+    ONEAVGYEAR: 31557600000, // 365.25 days
+    ONEAVGMONTH: 2629800000, // 1/12 of ONEAVGYEAR
+    ONEDAY: 86400000,
+    ONEHOUR: 3600000,
+    ONEMIN: 60000,
+    ONESEC: 1000,
+
+    /*
+     * For fast conversion btwn world calendars and epoch ms, the Julian Day Number
+     * of the unix epoch. From calendars.instance().newDate(1970, 1, 1).toJD()
+     */
+    EPOCHJD: 2440587.5,
+
+    /*
+     * Are two values nearly equal? Compare to 1PPM
+     */
+    ALMOST_EQUAL: 1 - 1e-6,
+
+    /*
+     * If we're asked to clip a non-positive log value, how far off-screen
+     * do we put it?
+     */
+    LOG_CLIP: 10,
+
+    /*
+     * not a number, but for displaying numbers: the "minus sign" symbol is
+     * wider than the regular ascii dash "-"
+     */
+    MINUS_SIGN: '\u2212'
+};
+
+
+/***/ }),
+/* 8 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var isNumeric = __webpack_require__(0);
+var isArrayOrTypedArray = __webpack_require__(1).isArrayOrTypedArray;
+
+/**
+ * convert a string s (such as 'xaxis.range[0]')
+ * representing a property of nested object into set and get methods
+ * also return the string and object so we don't have to keep track of them
+ * allows [-1] for an array index, to set a property inside all elements
+ * of an array
+ * eg if obj = {arr: [{a: 1}, {a: 2}]}
+ * you can do p = nestedProperty(obj, 'arr[-1].a')
+ * but you cannot set the array itself this way, to do that
+ * just set the whole array.
+ * eg if obj = {arr: [1, 2, 3]}
+ * you can't do nestedProperty(obj, 'arr[-1]').set(5)
+ * but you can do nestedProperty(obj, 'arr').set([5, 5, 5])
+ */
+module.exports = function nestedProperty(container, propStr) {
+    if(isNumeric(propStr)) propStr = String(propStr);
+    else if(typeof propStr !== 'string' ||
+            propStr.substr(propStr.length - 4) === '[-1]') {
+        throw 'bad property string';
+    }
+
+    var j = 0;
+    var propParts = propStr.split('.');
+    var indexed;
+    var indices;
+    var i;
+
+    // check for parts of the nesting hierarchy that are numbers (ie array elements)
+    while(j < propParts.length) {
+        // look for non-bracket chars, then any number of [##] blocks
+        indexed = String(propParts[j]).match(/^([^\[\]]*)((\[\-?[0-9]*\])+)$/);
+        if(indexed) {
+            if(indexed[1]) propParts[j] = indexed[1];
+            // allow propStr to start with bracketed array indices
+            else if(j === 0) propParts.splice(0, 1);
+            else throw 'bad property string';
+
+            indices = indexed[2]
+                .substr(1, indexed[2].length - 2)
+                .split('][');
+
+            for(i = 0; i < indices.length; i++) {
+                j++;
+                propParts.splice(j, 0, Number(indices[i]));
+            }
+        }
+        j++;
+    }
+
+    if(typeof container !== 'object') {
+        return badContainer(container, propStr, propParts);
+    }
+
+    return {
+        set: npSet(container, propParts, propStr),
+        get: npGet(container, propParts),
+        astr: propStr,
+        parts: propParts,
+        obj: container
+    };
+};
+
+function npGet(cont, parts) {
+    return function() {
+        var curCont = cont;
+        var curPart;
+        var allSame;
+        var out;
+        var i;
+        var j;
+
+        for(i = 0; i < parts.length - 1; i++) {
+            curPart = parts[i];
+            if(curPart === -1) {
+                allSame = true;
+                out = [];
+                for(j = 0; j < curCont.length; j++) {
+                    out[j] = npGet(curCont[j], parts.slice(i + 1))();
+                    if(out[j] !== out[0]) allSame = false;
+                }
+                return allSame ? out[0] : out;
+            }
+            if(typeof curPart === 'number' && !isArrayOrTypedArray(curCont)) {
+                return undefined;
+            }
+            curCont = curCont[curPart];
+            if(typeof curCont !== 'object' || curCont === null) {
+                return undefined;
+            }
+        }
+
+        // only hit this if parts.length === 1
+        if(typeof curCont !== 'object' || curCont === null) return undefined;
+
+        out = curCont[parts[i]];
+        if(out === null) return undefined;
+        return out;
+    };
+}
+
+/*
+ * Can this value be deleted? We can delete `undefined`, and `null` except INSIDE an
+ * *args* array.
+ *
+ * Previously we also deleted some `{}` and `[]`, in order to try and make set/unset
+ * a net noop; but this causes far more complication than it's worth, and still had
+ * lots of exceptions. See https://github.com/plotly/plotly.js/issues/1410
+ *
+ * *args* arrays get passed directly to API methods and we should respect null if
+ * the user put it there, but otherwise null is deleted as we use it as code
+ * in restyle/relayout/update for "delete this value" whereas undefined means
+ * "ignore this edit"
+ */
+var ARGS_PATTERN = /(^|\.)args\[/;
+function isDeletable(val, propStr) {
+    return (val === undefined) || (val === null && !propStr.match(ARGS_PATTERN));
+}
+
+function npSet(cont, parts, propStr) {
+    return function(val) {
+        var curCont = cont;
+        var propPart = '';
+        var containerLevels = [[cont, propPart]];
+        var toDelete = isDeletable(val, propStr);
+        var curPart;
+        var i;
+
+        for(i = 0; i < parts.length - 1; i++) {
+            curPart = parts[i];
+
+            if(typeof curPart === 'number' && !isArrayOrTypedArray(curCont)) {
+                throw 'array index but container is not an array';
+            }
+
+            // handle special -1 array index
+            if(curPart === -1) {
+                toDelete = !setArrayAll(curCont, parts.slice(i + 1), val, propStr);
+                if(toDelete) break;
+                else return;
+            }
+
+            if(!checkNewContainer(curCont, curPart, parts[i + 1], toDelete)) {
+                break;
+            }
+
+            curCont = curCont[curPart];
+
+            if(typeof curCont !== 'object' || curCont === null) {
+                throw 'container is not an object';
+            }
+
+            propPart = joinPropStr(propPart, curPart);
+
+            containerLevels.push([curCont, propPart]);
+        }
+
+        if(toDelete) {
+            if(i === parts.length - 1) {
+                delete curCont[parts[i]];
+
+                // The one bit of pruning we still do: drop `undefined` from the end of arrays.
+                // In case someone has already unset previous items, continue until we hit a
+                // non-undefined value.
+                if(Array.isArray(curCont) && +parts[i] === curCont.length - 1) {
+                    while(curCont.length && curCont[curCont.length - 1] === undefined) {
+                        curCont.pop();
+                    }
+                }
+            }
+        } else curCont[parts[i]] = val;
+    };
+}
+
+function joinPropStr(propStr, newPart) {
+    var toAdd = newPart;
+    if(isNumeric(newPart)) toAdd = '[' + newPart + ']';
+    else if(propStr) toAdd = '.' + newPart;
+
+    return propStr + toAdd;
+}
+
+// handle special -1 array index
+function setArrayAll(containerArray, innerParts, val, propStr) {
+    var arrayVal = isArrayOrTypedArray(val);
+    var allSet = true;
+    var thisVal = val;
+    var thisPropStr = propStr.replace('-1', 0);
+    var deleteThis = arrayVal ? false : isDeletable(val, thisPropStr);
+    var firstPart = innerParts[0];
+    var i;
+
+    for(i = 0; i < containerArray.length; i++) {
+        thisPropStr = propStr.replace('-1', i);
+        if(arrayVal) {
+            thisVal = val[i % val.length];
+            deleteThis = isDeletable(thisVal, thisPropStr);
+        }
+        if(deleteThis) allSet = false;
+        if(!checkNewContainer(containerArray, i, firstPart, deleteThis)) {
+            continue;
+        }
+        npSet(containerArray[i], innerParts, propStr.replace('-1', i))(thisVal);
+    }
+    return allSet;
+}
+
+/**
+ * make new sub-container as needed.
+ * returns false if there's no container and none is needed
+ * because we're only deleting an attribute
+ */
+function checkNewContainer(container, part, nextPart, toDelete) {
+    if(container[part] === undefined) {
+        if(toDelete) return false;
+
+        if(typeof nextPart === 'number') container[part] = [];
+        else container[part] = {};
+    }
+    return true;
+}
+
+function badContainer(container, propStr, propParts) {
+    return {
+        set: function() { throw 'bad container'; },
+        get: function() {},
+        astr: propStr,
+        parts: propParts,
+        obj: container
+    };
+}
+
+
+/***/ }),
+/* 9 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/*
+ * make a font attribute group
+ *
+ * @param {object} opts
+ *   @param {string}
+ *     opts.description: where & how this font is used
+ *   @param {optional bool} arrayOk:
+ *     should each part (family, size, color) be arrayOk? default false.
+ *   @param {string} editType:
+ *     the editType for all pieces of this font
+ *   @param {optional string} colorEditType:
+ *     a separate editType just for color
+ *
+ * @return {object} attributes object containing {family, size, color} as specified
+ */
+module.exports = function(opts) {
+    var editType = opts.editType;
+    var colorEditType = opts.colorEditType;
+    if(colorEditType === undefined) colorEditType = editType;
+    var attrs = {
+        family: {
+            valType: 'string',
+            
+            noBlank: true,
+            strict: true,
+            editType: editType,
+            
+        },
+        size: {
+            valType: 'number',
+            
+            min: 1,
+            editType: editType
+        },
+        color: {
+            valType: 'color',
+            
+            editType: colorEditType
+        },
+        editType: editType,
+        // blank strings so compress_attributes can remove
+        // TODO - that's uber hacky... better solution?
+        
+    };
+
+    if(opts.arrayOk) {
+        attrs.family.arrayOk = true;
+        attrs.size.arrayOk = true;
+        attrs.color.arrayOk = true;
+    }
+
+    return attrs;
+};
+
+
+/***/ }),
+/* 10 */
+/***/ (function(module, exports) {
+
+var g;
+
+// This works in non-strict mode
+g = (function() {
+	return this;
+})();
+
+try {
+	// This works if eval is allowed (see CSP)
+	g = g || Function("return this")() || (1,eval)("this");
+} catch(e) {
+	// This works if the window reference is available
+	if(typeof window === "object")
+		g = window;
+}
+
+// g can still be undefined, but nothing to do about it...
+// We return undefined, instead of nothing here, so it's
+// easier to handle this case. if(!global) { ...}
+
+module.exports = g;
+
+
+/***/ }),
+/* 11 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var __WEBPACK_AMD_DEFINE_RESULT__;// TinyColor v1.4.1
+// https://github.com/bgrins/TinyColor
+// Brian Grinstead, MIT License
+
+(function(Math) {
+
+var trimLeft = /^\s+/,
+    trimRight = /\s+$/,
+    tinyCounter = 0,
+    mathRound = Math.round,
+    mathMin = Math.min,
+    mathMax = Math.max,
+    mathRandom = Math.random;
+
+function tinycolor (color, opts) {
+
+    color = (color) ? color : '';
+    opts = opts || { };
+
+    // If input is already a tinycolor, return itself
+    if (color instanceof tinycolor) {
+       return color;
+    }
+    // If we are called as a function, call using new instead
+    if (!(this instanceof tinycolor)) {
+        return new tinycolor(color, opts);
+    }
+
+    var rgb = inputToRGB(color);
+    this._originalInput = color,
+    this._r = rgb.r,
+    this._g = rgb.g,
+    this._b = rgb.b,
+    this._a = rgb.a,
+    this._roundA = mathRound(100*this._a) / 100,
+    this._format = opts.format || rgb.format;
+    this._gradientType = opts.gradientType;
+
+    // Don't let the range of [0,255] come back in [0,1].
+    // Potentially lose a little bit of precision here, but will fix issues where
+    // .5 gets interpreted as half of the total, instead of half of 1
+    // If it was supposed to be 128, this was already taken care of by `inputToRgb`
+    if (this._r < 1) { this._r = mathRound(this._r); }
+    if (this._g < 1) { this._g = mathRound(this._g); }
+    if (this._b < 1) { this._b = mathRound(this._b); }
+
+    this._ok = rgb.ok;
+    this._tc_id = tinyCounter++;
+}
+
+tinycolor.prototype = {
+    isDark: function() {
+        return this.getBrightness() < 128;
+    },
+    isLight: function() {
+        return !this.isDark();
+    },
+    isValid: function() {
+        return this._ok;
+    },
+    getOriginalInput: function() {
+      return this._originalInput;
+    },
+    getFormat: function() {
+        return this._format;
+    },
+    getAlpha: function() {
+        return this._a;
+    },
+    getBrightness: function() {
+        //http://www.w3.org/TR/AERT#color-contrast
+        var rgb = this.toRgb();
+        return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000;
+    },
+    getLuminance: function() {
+        //http://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef
+        var rgb = this.toRgb();
+        var RsRGB, GsRGB, BsRGB, R, G, B;
+        RsRGB = rgb.r/255;
+        GsRGB = rgb.g/255;
+        BsRGB = rgb.b/255;
+
+        if (RsRGB <= 0.03928) {R = RsRGB / 12.92;} else {R = Math.pow(((RsRGB + 0.055) / 1.055), 2.4);}
+        if (GsRGB <= 0.03928) {G = GsRGB / 12.92;} else {G = Math.pow(((GsRGB + 0.055) / 1.055), 2.4);}
+        if (BsRGB <= 0.03928) {B = BsRGB / 12.92;} else {B = Math.pow(((BsRGB + 0.055) / 1.055), 2.4);}
+        return (0.2126 * R) + (0.7152 * G) + (0.0722 * B);
+    },
+    setAlpha: function(value) {
+        this._a = boundAlpha(value);
+        this._roundA = mathRound(100*this._a) / 100;
+        return this;
+    },
+    toHsv: function() {
+        var hsv = rgbToHsv(this._r, this._g, this._b);
+        return { h: hsv.h * 360, s: hsv.s, v: hsv.v, a: this._a };
+    },
+    toHsvString: function() {
+        var hsv = rgbToHsv(this._r, this._g, this._b);
+        var h = mathRound(hsv.h * 360), s = mathRound(hsv.s * 100), v = mathRound(hsv.v * 100);
+        return (this._a == 1) ?
+          "hsv("  + h + ", " + s + "%, " + v + "%)" :
+          "hsva(" + h + ", " + s + "%, " + v + "%, "+ this._roundA + ")";
+    },
+    toHsl: function() {
+        var hsl = rgbToHsl(this._r, this._g, this._b);
+        return { h: hsl.h * 360, s: hsl.s, l: hsl.l, a: this._a };
+    },
+    toHslString: function() {
+        var hsl = rgbToHsl(this._r, this._g, this._b);
+        var h = mathRound(hsl.h * 360), s = mathRound(hsl.s * 100), l = mathRound(hsl.l * 100);
+        return (this._a == 1) ?
+          "hsl("  + h + ", " + s + "%, " + l + "%)" :
+          "hsla(" + h + ", " + s + "%, " + l + "%, "+ this._roundA + ")";
+    },
+    toHex: function(allow3Char) {
+        return rgbToHex(this._r, this._g, this._b, allow3Char);
+    },
+    toHexString: function(allow3Char) {
+        return '#' + this.toHex(allow3Char);
+    },
+    toHex8: function(allow4Char) {
+        return rgbaToHex(this._r, this._g, this._b, this._a, allow4Char);
+    },
+    toHex8String: function(allow4Char) {
+        return '#' + this.toHex8(allow4Char);
+    },
+    toRgb: function() {
+        return { r: mathRound(this._r), g: mathRound(this._g), b: mathRound(this._b), a: this._a };
+    },
+    toRgbString: function() {
+        return (this._a == 1) ?
+          "rgb("  + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ")" :
+          "rgba(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ", " + this._roundA + ")";
+    },
+    toPercentageRgb: function() {
+        return { r: mathRound(bound01(this._r, 255) * 100) + "%", g: mathRound(bound01(this._g, 255) * 100) + "%", b: mathRound(bound01(this._b, 255) * 100) + "%", a: this._a };
+    },
+    toPercentageRgbString: function() {
+        return (this._a == 1) ?
+          "rgb("  + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%)" :
+          "rgba(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%, " + this._roundA + ")";
+    },
+    toName: function() {
+        if (this._a === 0) {
+            return "transparent";
+        }
+
+        if (this._a < 1) {
+            return false;
+        }
+
+        return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false;
+    },
+    toFilter: function(secondColor) {
+        var hex8String = '#' + rgbaToArgbHex(this._r, this._g, this._b, this._a);
+        var secondHex8String = hex8String;
+        var gradientType = this._gradientType ? "GradientType = 1, " : "";
+
+        if (secondColor) {
+            var s = tinycolor(secondColor);
+            secondHex8String = '#' + rgbaToArgbHex(s._r, s._g, s._b, s._a);
+        }
+
+        return "progid:DXImageTransform.Microsoft.gradient("+gradientType+"startColorstr="+hex8String+",endColorstr="+secondHex8String+")";
+    },
+    toString: function(format) {
+        var formatSet = !!format;
+        format = format || this._format;
+
+        var formattedString = false;
+        var hasAlpha = this._a < 1 && this._a >= 0;
+        var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "hex4" || format === "hex8" || format === "name");
+
+        if (needsAlphaFormat) {
+            // Special case for "transparent", all other non-alpha formats
+            // will return rgba when there is transparency.
+            if (format === "name" && this._a === 0) {
+                return this.toName();
+            }
+            return this.toRgbString();
+        }
+        if (format === "rgb") {
+            formattedString = this.toRgbString();
+        }
+        if (format === "prgb") {
+            formattedString = this.toPercentageRgbString();
+        }
+        if (format === "hex" || format === "hex6") {
+            formattedString = this.toHexString();
+        }
+        if (format === "hex3") {
+            formattedString = this.toHexString(true);
+        }
+        if (format === "hex4") {
+            formattedString = this.toHex8String(true);
+        }
+        if (format === "hex8") {
+            formattedString = this.toHex8String();
+        }
+        if (format === "name") {
+            formattedString = this.toName();
+        }
+        if (format === "hsl") {
+            formattedString = this.toHslString();
+        }
+        if (format === "hsv") {
+            formattedString = this.toHsvString();
+        }
+
+        return formattedString || this.toHexString();
+    },
+    clone: function() {
+        return tinycolor(this.toString());
+    },
+
+    _applyModification: function(fn, args) {
+        var color = fn.apply(null, [this].concat([].slice.call(args)));
+        this._r = color._r;
+        this._g = color._g;
+        this._b = color._b;
+        this.setAlpha(color._a);
+        return this;
+    },
+    lighten: function() {
+        return this._applyModification(lighten, arguments);
+    },
+    brighten: function() {
+        return this._applyModification(brighten, arguments);
+    },
+    darken: function() {
+        return this._applyModification(darken, arguments);
+    },
+    desaturate: function() {
+        return this._applyModification(desaturate, arguments);
+    },
+    saturate: function() {
+        return this._applyModification(saturate, arguments);
+    },
+    greyscale: function() {
+        return this._applyModification(greyscale, arguments);
+    },
+    spin: function() {
+        return this._applyModification(spin, arguments);
+    },
+
+    _applyCombination: function(fn, args) {
+        return fn.apply(null, [this].concat([].slice.call(args)));
+    },
+    analogous: function() {
+        return this._applyCombination(analogous, arguments);
+    },
+    complement: function() {
+        return this._applyCombination(complement, arguments);
+    },
+    monochromatic: function() {
+        return this._applyCombination(monochromatic, arguments);
+    },
+    splitcomplement: function() {
+        return this._applyCombination(splitcomplement, arguments);
+    },
+    triad: function() {
+        return this._applyCombination(triad, arguments);
+    },
+    tetrad: function() {
+        return this._applyCombination(tetrad, arguments);
+    }
+};
+
+// If input is an object, force 1 into "1.0" to handle ratios properly
+// String input requires "1.0" as input, so 1 will be treated as 1
+tinycolor.fromRatio = function(color, opts) {
+    if (typeof color == "object") {
+        var newColor = {};
+        for (var i in color) {
+            if (color.hasOwnProperty(i)) {
+                if (i === "a") {
+                    newColor[i] = color[i];
+                }
+                else {
+                    newColor[i] = convertToPercentage(color[i]);
+                }
+            }
+        }
+        color = newColor;
+    }
+
+    return tinycolor(color, opts);
+};
+
+// Given a string or object, convert that input to RGB
+// Possible string inputs:
+//
+//     "red"
+//     "#f00" or "f00"
+//     "#ff0000" or "ff0000"
+//     "#ff000000" or "ff000000"
+//     "rgb 255 0 0" or "rgb (255, 0, 0)"
+//     "rgb 1.0 0 0" or "rgb (1, 0, 0)"
+//     "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1"
+//     "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1"
+//     "hsl(0, 100%, 50%)" or "hsl 0 100% 50%"
+//     "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1"
+//     "hsv(0, 100%, 100%)" or "hsv 0 100% 100%"
+//
+function inputToRGB(color) {
+
+    var rgb = { r: 0, g: 0, b: 0 };
+    var a = 1;
+    var s = null;
+    var v = null;
+    var l = null;
+    var ok = false;
+    var format = false;
+
+    if (typeof color == "string") {
+        color = stringInputToObject(color);
+    }
+
+    if (typeof color == "object") {
+        if (isValidCSSUnit(color.r) && isValidCSSUnit(color.g) && isValidCSSUnit(color.b)) {
+            rgb = rgbToRgb(color.r, color.g, color.b);
+            ok = true;
+            format = String(color.r).substr(-1) === "%" ? "prgb" : "rgb";
+        }
+        else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.v)) {
+            s = convertToPercentage(color.s);
+            v = convertToPercentage(color.v);
+            rgb = hsvToRgb(color.h, s, v);
+            ok = true;
+            format = "hsv";
+        }
+        else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.l)) {
+            s = convertToPercentage(color.s);
+            l = convertToPercentage(color.l);
+            rgb = hslToRgb(color.h, s, l);
+            ok = true;
+            format = "hsl";
+        }
+
+        if (color.hasOwnProperty("a")) {
+            a = color.a;
+        }
+    }
+
+    a = boundAlpha(a);
+
+    return {
+        ok: ok,
+        format: color.format || format,
+        r: mathMin(255, mathMax(rgb.r, 0)),
+        g: mathMin(255, mathMax(rgb.g, 0)),
+        b: mathMin(255, mathMax(rgb.b, 0)),
+        a: a
+    };
+}
+
+
+// Conversion Functions
+// --------------------
+
+// `rgbToHsl`, `rgbToHsv`, `hslToRgb`, `hsvToRgb` modified from:
+// <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript>
+
+// `rgbToRgb`
+// Handle bounds / percentage checking to conform to CSS color spec
+// <http://www.w3.org/TR/css3-color/>
+// *Assumes:* r, g, b in [0, 255] or [0, 1]
+// *Returns:* { r, g, b } in [0, 255]
+function rgbToRgb(r, g, b){
+    return {
+        r: bound01(r, 255) * 255,
+        g: bound01(g, 255) * 255,
+        b: bound01(b, 255) * 255
+    };
+}
+
+// `rgbToHsl`
+// Converts an RGB color value to HSL.
+// *Assumes:* r, g, and b are contained in [0, 255] or [0, 1]
+// *Returns:* { h, s, l } in [0,1]
+function rgbToHsl(r, g, b) {
+
+    r = bound01(r, 255);
+    g = bound01(g, 255);
+    b = bound01(b, 255);
+
+    var max = mathMax(r, g, b), min = mathMin(r, g, b);
+    var h, s, l = (max + min) / 2;
+
+    if(max == min) {
+        h = s = 0; // achromatic
+    }
+    else {
+        var d = max - min;
+        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
+        switch(max) {
+            case r: h = (g - b) / d + (g < b ? 6 : 0); break;
+            case g: h = (b - r) / d + 2; break;
+            case b: h = (r - g) / d + 4; break;
+        }
+
+        h /= 6;
+    }
+
+    return { h: h, s: s, l: l };
+}
+
+// `hslToRgb`
+// Converts an HSL color value to RGB.
+// *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100]
+// *Returns:* { r, g, b } in the set [0, 255]
+function hslToRgb(h, s, l) {
+    var r, g, b;
+
+    h = bound01(h, 360);
+    s = bound01(s, 100);
+    l = bound01(l, 100);
+
+    function hue2rgb(p, q, t) {
+        if(t < 0) t += 1;
+        if(t > 1) t -= 1;
+        if(t < 1/6) return p + (q - p) * 6 * t;
+        if(t < 1/2) return q;
+        if(t < 2/3) return p + (q - p) * (2/3 - t) * 6;
+        return p;
+    }
+
+    if(s === 0) {
+        r = g = b = l; // achromatic
+    }
+    else {
+        var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+        var p = 2 * l - q;
+        r = hue2rgb(p, q, h + 1/3);
+        g = hue2rgb(p, q, h);
+        b = hue2rgb(p, q, h - 1/3);
+    }
+
+    return { r: r * 255, g: g * 255, b: b * 255 };
+}
+
+// `rgbToHsv`
+// Converts an RGB color value to HSV
+// *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1]
+// *Returns:* { h, s, v } in [0,1]
+function rgbToHsv(r, g, b) {
+
+    r = bound01(r, 255);
+    g = bound01(g, 255);
+    b = bound01(b, 255);
+
+    var max = mathMax(r, g, b), min = mathMin(r, g, b);
+    var h, s, v = max;
+
+    var d = max - min;
+    s = max === 0 ? 0 : d / max;
+
+    if(max == min) {
+        h = 0; // achromatic
+    }
+    else {
+        switch(max) {
+            case r: h = (g - b) / d + (g < b ? 6 : 0); break;
+            case g: h = (b - r) / d + 2; break;
+            case b: h = (r - g) / d + 4; break;
+        }
+        h /= 6;
+    }
+    return { h: h, s: s, v: v };
+}
+
+// `hsvToRgb`
+// Converts an HSV color value to RGB.
+// *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100]
+// *Returns:* { r, g, b } in the set [0, 255]
+ function hsvToRgb(h, s, v) {
+
+    h = bound01(h, 360) * 6;
+    s = bound01(s, 100);
+    v = bound01(v, 100);
+
+    var i = Math.floor(h),
+        f = h - i,
+        p = v * (1 - s),
+        q = v * (1 - f * s),
+        t = v * (1 - (1 - f) * s),
+        mod = i % 6,
+        r = [v, q, p, p, t, v][mod],
+        g = [t, v, v, q, p, p][mod],
+        b = [p, p, t, v, v, q][mod];
+
+    return { r: r * 255, g: g * 255, b: b * 255 };
+}
+
+// `rgbToHex`
+// Converts an RGB color to hex
+// Assumes r, g, and b are contained in the set [0, 255]
+// Returns a 3 or 6 character hex
+function rgbToHex(r, g, b, allow3Char) {
+
+    var hex = [
+        pad2(mathRound(r).toString(16)),
+        pad2(mathRound(g).toString(16)),
+        pad2(mathRound(b).toString(16))
+    ];
+
+    // Return a 3 character hex if possible
+    if (allow3Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) {
+        return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0);
+    }
+
+    return hex.join("");
+}
+
+// `rgbaToHex`
+// Converts an RGBA color plus alpha transparency to hex
+// Assumes r, g, b are contained in the set [0, 255] and
+// a in [0, 1]. Returns a 4 or 8 character rgba hex
+function rgbaToHex(r, g, b, a, allow4Char) {
+
+    var hex = [
+        pad2(mathRound(r).toString(16)),
+        pad2(mathRound(g).toString(16)),
+        pad2(mathRound(b).toString(16)),
+        pad2(convertDecimalToHex(a))
+    ];
+
+    // Return a 4 character hex if possible
+    if (allow4Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1) && hex[3].charAt(0) == hex[3].charAt(1)) {
+        return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0) + hex[3].charAt(0);
+    }
+
+    return hex.join("");
+}
+
+// `rgbaToArgbHex`
+// Converts an RGBA color to an ARGB Hex8 string
+// Rarely used, but required for "toFilter()"
+function rgbaToArgbHex(r, g, b, a) {
+
+    var hex = [
+        pad2(convertDecimalToHex(a)),
+        pad2(mathRound(r).toString(16)),
+        pad2(mathRound(g).toString(16)),
+        pad2(mathRound(b).toString(16))
+    ];
+
+    return hex.join("");
+}
+
+// `equals`
+// Can be called with any tinycolor input
+tinycolor.equals = function (color1, color2) {
+    if (!color1 || !color2) { return false; }
+    return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString();
+};
+
+tinycolor.random = function() {
+    return tinycolor.fromRatio({
+        r: mathRandom(),
+        g: mathRandom(),
+        b: mathRandom()
+    });
+};
+
+
+// Modification Functions
+// ----------------------
+// Thanks to less.js for some of the basics here
+// <https://github.com/cloudhead/less.js/blob/master/lib/less/functions.js>
+
+function desaturate(color, amount) {
+    amount = (amount === 0) ? 0 : (amount || 10);
+    var hsl = tinycolor(color).toHsl();
+    hsl.s -= amount / 100;
+    hsl.s = clamp01(hsl.s);
+    return tinycolor(hsl);
+}
+
+function saturate(color, amount) {
+    amount = (amount === 0) ? 0 : (amount || 10);
+    var hsl = tinycolor(color).toHsl();
+    hsl.s += amount / 100;
+    hsl.s = clamp01(hsl.s);
+    return tinycolor(hsl);
+}
+
+function greyscale(color) {
+    return tinycolor(color).desaturate(100);
+}
+
+function lighten (color, amount) {
+    amount = (amount === 0) ? 0 : (amount || 10);
+    var hsl = tinycolor(color).toHsl();
+    hsl.l += amount / 100;
+    hsl.l = clamp01(hsl.l);
+    return tinycolor(hsl);
+}
+
+function brighten(color, amount) {
+    amount = (amount === 0) ? 0 : (amount || 10);
+    var rgb = tinycolor(color).toRgb();
+    rgb.r = mathMax(0, mathMin(255, rgb.r - mathRound(255 * - (amount / 100))));
+    rgb.g = mathMax(0, mathMin(255, rgb.g - mathRound(255 * - (amount / 100))));
+    rgb.b = mathMax(0, mathMin(255, rgb.b - mathRound(255 * - (amount / 100))));
+    return tinycolor(rgb);
+}
+
+function darken (color, amount) {
+    amount = (amount === 0) ? 0 : (amount || 10);
+    var hsl = tinycolor(color).toHsl();
+    hsl.l -= amount / 100;
+    hsl.l = clamp01(hsl.l);
+    return tinycolor(hsl);
+}
+
+// Spin takes a positive or negative amount within [-360, 360] indicating the change of hue.
+// Values outside of this range will be wrapped into this range.
+function spin(color, amount) {
+    var hsl = tinycolor(color).toHsl();
+    var hue = (hsl.h + amount) % 360;
+    hsl.h = hue < 0 ? 360 + hue : hue;
+    return tinycolor(hsl);
+}
+
+// Combination Functions
+// ---------------------
+// Thanks to jQuery xColor for some of the ideas behind these
+// <https://github.com/infusion/jQuery-xcolor/blob/master/jquery.xcolor.js>
+
+function complement(color) {
+    var hsl = tinycolor(color).toHsl();
+    hsl.h = (hsl.h + 180) % 360;
+    return tinycolor(hsl);
+}
+
+function triad(color) {
+    var hsl = tinycolor(color).toHsl();
+    var h = hsl.h;
+    return [
+        tinycolor(color),
+        tinycolor({ h: (h + 120) % 360, s: hsl.s, l: hsl.l }),
+        tinycolor({ h: (h + 240) % 360, s: hsl.s, l: hsl.l })
+    ];
+}
+
+function tetrad(color) {
+    var hsl = tinycolor(color).toHsl();
+    var h = hsl.h;
+    return [
+        tinycolor(color),
+        tinycolor({ h: (h + 90) % 360, s: hsl.s, l: hsl.l }),
+        tinycolor({ h: (h + 180) % 360, s: hsl.s, l: hsl.l }),
+        tinycolor({ h: (h + 270) % 360, s: hsl.s, l: hsl.l })
+    ];
+}
+
+function splitcomplement(color) {
+    var hsl = tinycolor(color).toHsl();
+    var h = hsl.h;
+    return [
+        tinycolor(color),
+        tinycolor({ h: (h + 72) % 360, s: hsl.s, l: hsl.l}),
+        tinycolor({ h: (h + 216) % 360, s: hsl.s, l: hsl.l})
+    ];
+}
+
+function analogous(color, results, slices) {
+    results = results || 6;
+    slices = slices || 30;
+
+    var hsl = tinycolor(color).toHsl();
+    var part = 360 / slices;
+    var ret = [tinycolor(color)];
+
+    for (hsl.h = ((hsl.h - (part * results >> 1)) + 720) % 360; --results; ) {
+        hsl.h = (hsl.h + part) % 360;
+        ret.push(tinycolor(hsl));
+    }
+    return ret;
+}
+
+function monochromatic(color, results) {
+    results = results || 6;
+    var hsv = tinycolor(color).toHsv();
+    var h = hsv.h, s = hsv.s, v = hsv.v;
+    var ret = [];
+    var modification = 1 / results;
+
+    while (results--) {
+        ret.push(tinycolor({ h: h, s: s, v: v}));
+        v = (v + modification) % 1;
+    }
+
+    return ret;
+}
+
+// Utility Functions
+// ---------------------
+
+tinycolor.mix = function(color1, color2, amount) {
+    amount = (amount === 0) ? 0 : (amount || 50);
+
+    var rgb1 = tinycolor(color1).toRgb();
+    var rgb2 = tinycolor(color2).toRgb();
+
+    var p = amount / 100;
+
+    var rgba = {
+        r: ((rgb2.r - rgb1.r) * p) + rgb1.r,
+        g: ((rgb2.g - rgb1.g) * p) + rgb1.g,
+        b: ((rgb2.b - rgb1.b) * p) + rgb1.b,
+        a: ((rgb2.a - rgb1.a) * p) + rgb1.a
+    };
+
+    return tinycolor(rgba);
+};
+
+
+// Readability Functions
+// ---------------------
+// <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef (WCAG Version 2)
+
+// `contrast`
+// Analyze the 2 colors and returns the color contrast defined by (WCAG Version 2)
+tinycolor.readability = function(color1, color2) {
+    var c1 = tinycolor(color1);
+    var c2 = tinycolor(color2);
+    return (Math.max(c1.getLuminance(),c2.getLuminance())+0.05) / (Math.min(c1.getLuminance(),c2.getLuminance())+0.05);
+};
+
+// `isReadable`
+// Ensure that foreground and background color combinations meet WCAG2 guidelines.
+// The third argument is an optional Object.
+//      the 'level' property states 'AA' or 'AAA' - if missing or invalid, it defaults to 'AA';
+//      the 'size' property states 'large' or 'small' - if missing or invalid, it defaults to 'small'.
+// If the entire object is absent, isReadable defaults to {level:"AA",size:"small"}.
+
+// *Example*
+//    tinycolor.isReadable("#000", "#111") => false
+//    tinycolor.isReadable("#000", "#111",{level:"AA",size:"large"}) => false
+tinycolor.isReadable = function(color1, color2, wcag2) {
+    var readability = tinycolor.readability(color1, color2);
+    var wcag2Parms, out;
+
+    out = false;
+
+    wcag2Parms = validateWCAG2Parms(wcag2);
+    switch (wcag2Parms.level + wcag2Parms.size) {
+        case "AAsmall":
+        case "AAAlarge":
+            out = readability >= 4.5;
+            break;
+        case "AAlarge":
+            out = readability >= 3;
+            break;
+        case "AAAsmall":
+            out = readability >= 7;
+            break;
+    }
+    return out;
+
+};
+
+// `mostReadable`
+// Given a base color and a list of possible foreground or background
+// colors for that base, returns the most readable color.
+// Optionally returns Black or White if the most readable color is unreadable.
+// *Example*
+//    tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:false}).toHexString(); // "#112255"
+//    tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:true}).toHexString();  // "#ffffff"
+//    tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"large"}).toHexString(); // "#faf3f3"
+//    tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"small"}).toHexString(); // "#ffffff"
+tinycolor.mostReadable = function(baseColor, colorList, args) {
+    var bestColor = null;
+    var bestScore = 0;
+    var readability;
+    var includeFallbackColors, level, size ;
+    args = args || {};
+    includeFallbackColors = args.includeFallbackColors ;
+    level = args.level;
+    size = args.size;
+
+    for (var i= 0; i < colorList.length ; i++) {
+        readability = tinycolor.readability(baseColor, colorList[i]);
+        if (readability > bestScore) {
+            bestScore = readability;
+            bestColor = tinycolor(colorList[i]);
+        }
+    }
+
+    if (tinycolor.isReadable(baseColor, bestColor, {"level":level,"size":size}) || !includeFallbackColors) {
+        return bestColor;
+    }
+    else {
+        args.includeFallbackColors=false;
+        return tinycolor.mostReadable(baseColor,["#fff", "#000"],args);
+    }
+};
+
+
+// Big List of Colors
+// ------------------
+// <http://www.w3.org/TR/css3-color/#svg-color>
+var names = tinycolor.names = {
+    aliceblue: "f0f8ff",
+    antiquewhite: "faebd7",
+    aqua: "0ff",
+    aquamarine: "7fffd4",
+    azure: "f0ffff",
+    beige: "f5f5dc",
+    bisque: "ffe4c4",
+    black: "000",
+    blanchedalmond: "ffebcd",
+    blue: "00f",
+    blueviolet: "8a2be2",
+    brown: "a52a2a",
+    burlywood: "deb887",
+    burntsienna: "ea7e5d",
+    cadetblue: "5f9ea0",
+    chartreuse: "7fff00",
+    chocolate: "d2691e",
+    coral: "ff7f50",
+    cornflowerblue: "6495ed",
+    cornsilk: "fff8dc",
+    crimson: "dc143c",
+    cyan: "0ff",
+    darkblue: "00008b",
+    darkcyan: "008b8b",
+    darkgoldenrod: "b8860b",
+    darkgray: "a9a9a9",
+    darkgreen: "006400",
+    darkgrey: "a9a9a9",
+    darkkhaki: "bdb76b",
+    darkmagenta: "8b008b",
+    darkolivegreen: "556b2f",
+    darkorange: "ff8c00",
+    darkorchid: "9932cc",
+    darkred: "8b0000",
+    darksalmon: "e9967a",
+    darkseagreen: "8fbc8f",
+    darkslateblue: "483d8b",
+    darkslategray: "2f4f4f",
+    darkslategrey: "2f4f4f",
+    darkturquoise: "00ced1",
+    darkviolet: "9400d3",
+    deeppink: "ff1493",
+    deepskyblue: "00bfff",
+    dimgray: "696969",
+    dimgrey: "696969",
+    dodgerblue: "1e90ff",
+    firebrick: "b22222",
+    floralwhite: "fffaf0",
+    forestgreen: "228b22",
+    fuchsia: "f0f",
+    gainsboro: "dcdcdc",
+    ghostwhite: "f8f8ff",
+    gold: "ffd700",
+    goldenrod: "daa520",
+    gray: "808080",
+    green: "008000",
+    greenyellow: "adff2f",
+    grey: "808080",
+    honeydew: "f0fff0",
+    hotpink: "ff69b4",
+    indianred: "cd5c5c",
+    indigo: "4b0082",
+    ivory: "fffff0",
+    khaki: "f0e68c",
+    lavender: "e6e6fa",
+    lavenderblush: "fff0f5",
+    lawngreen: "7cfc00",
+    lemonchiffon: "fffacd",
+    lightblue: "add8e6",
+    lightcoral: "f08080",
+    lightcyan: "e0ffff",
+    lightgoldenrodyellow: "fafad2",
+    lightgray: "d3d3d3",
+    lightgreen: "90ee90",
+    lightgrey: "d3d3d3",
+    lightpink: "ffb6c1",
+    lightsalmon: "ffa07a",
+    lightseagreen: "20b2aa",
+    lightskyblue: "87cefa",
+    lightslategray: "789",
+    lightslategrey: "789",
+    lightsteelblue: "b0c4de",
+    lightyellow: "ffffe0",
+    lime: "0f0",
+    limegreen: "32cd32",
+    linen: "faf0e6",
+    magenta: "f0f",
+    maroon: "800000",
+    mediumaquamarine: "66cdaa",
+    mediumblue: "0000cd",
+    mediumorchid: "ba55d3",
+    mediumpurple: "9370db",
+    mediumseagreen: "3cb371",
+    mediumslateblue: "7b68ee",
+    mediumspringgreen: "00fa9a",
+    mediumturquoise: "48d1cc",
+    mediumvioletred: "c71585",
+    midnightblue: "191970",
+    mintcream: "f5fffa",
+    mistyrose: "ffe4e1",
+    moccasin: "ffe4b5",
+    navajowhite: "ffdead",
+    navy: "000080",
+    oldlace: "fdf5e6",
+    olive: "808000",
+    olivedrab: "6b8e23",
+    orange: "ffa500",
+    orangered: "ff4500",
+    orchid: "da70d6",
+    palegoldenrod: "eee8aa",
+    palegreen: "98fb98",
+    paleturquoise: "afeeee",
+    palevioletred: "db7093",
+    papayawhip: "ffefd5",
+    peachpuff: "ffdab9",
+    peru: "cd853f",
+    pink: "ffc0cb",
+    plum: "dda0dd",
+    powderblue: "b0e0e6",
+    purple: "800080",
+    rebeccapurple: "663399",
+    red: "f00",
+    rosybrown: "bc8f8f",
+    royalblue: "4169e1",
+    saddlebrown: "8b4513",
+    salmon: "fa8072",
+    sandybrown: "f4a460",
+    seagreen: "2e8b57",
+    seashell: "fff5ee",
+    sienna: "a0522d",
+    silver: "c0c0c0",
+    skyblue: "87ceeb",
+    slateblue: "6a5acd",
+    slategray: "708090",
+    slategrey: "708090",
+    snow: "fffafa",
+    springgreen: "00ff7f",
+    steelblue: "4682b4",
+    tan: "d2b48c",
+    teal: "008080",
+    thistle: "d8bfd8",
+    tomato: "ff6347",
+    turquoise: "40e0d0",
+    violet: "ee82ee",
+    wheat: "f5deb3",
+    white: "fff",
+    whitesmoke: "f5f5f5",
+    yellow: "ff0",
+    yellowgreen: "9acd32"
+};
+
+// Make it easy to access colors via `hexNames[hex]`
+var hexNames = tinycolor.hexNames = flip(names);
+
+
+// Utilities
+// ---------
+
+// `{ 'name1': 'val1' }` becomes `{ 'val1': 'name1' }`
+function flip(o) {
+    var flipped = { };
+    for (var i in o) {
+        if (o.hasOwnProperty(i)) {
+            flipped[o[i]] = i;
+        }
+    }
+    return flipped;
+}
+
+// Return a valid alpha value [0,1] with all invalid values being set to 1
+function boundAlpha(a) {
+    a = parseFloat(a);
+
+    if (isNaN(a) || a < 0 || a > 1) {
+        a = 1;
+    }
+
+    return a;
+}
+
+// Take input from [0, n] and return it as [0, 1]
+function bound01(n, max) {
+    if (isOnePointZero(n)) { n = "100%"; }
+
+    var processPercent = isPercentage(n);
+    n = mathMin(max, mathMax(0, parseFloat(n)));
+
+    // Automatically convert percentage into number
+    if (processPercent) {
+        n = parseInt(n * max, 10) / 100;
+    }
+
+    // Handle floating point rounding errors
+    if ((Math.abs(n - max) < 0.000001)) {
+        return 1;
+    }
+
+    // Convert into [0, 1] range if it isn't already
+    return (n % max) / parseFloat(max);
+}
+
+// Force a number between 0 and 1
+function clamp01(val) {
+    return mathMin(1, mathMax(0, val));
+}
+
+// Parse a base-16 hex value into a base-10 integer
+function parseIntFromHex(val) {
+    return parseInt(val, 16);
+}
+
+// Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1
+// <http://stackoverflow.com/questions/7422072/javascript-how-to-detect-number-as-a-decimal-including-1-0>
+function isOnePointZero(n) {
+    return typeof n == "string" && n.indexOf('.') != -1 && parseFloat(n) === 1;
+}
+
+// Check to see if string passed in is a percentage
+function isPercentage(n) {
+    return typeof n === "string" && n.indexOf('%') != -1;
+}
+
+// Force a hex value to have 2 characters
+function pad2(c) {
+    return c.length == 1 ? '0' + c : '' + c;
+}
+
+// Replace a decimal with it's percentage value
+function convertToPercentage(n) {
+    if (n <= 1) {
+        n = (n * 100) + "%";
+    }
+
+    return n;
+}
+
+// Converts a decimal to a hex value
+function convertDecimalToHex(d) {
+    return Math.round(parseFloat(d) * 255).toString(16);
+}
+// Converts a hex value to a decimal
+function convertHexToDecimal(h) {
+    return (parseIntFromHex(h) / 255);
+}
+
+var matchers = (function() {
+
+    // <http://www.w3.org/TR/css3-values/#integers>
+    var CSS_INTEGER = "[-\\+]?\\d+%?";
+
+    // <http://www.w3.org/TR/css3-values/#number-value>
+    var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?";
+
+    // Allow positive/negative integer/number.  Don't capture the either/or, just the entire outcome.
+    var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")";
+
+    // Actual matching.
+    // Parentheses and commas are optional, but not required.
+    // Whitespace can take the place of commas or opening paren
+    var PERMISSIVE_MATCH3 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
+    var PERMISSIVE_MATCH4 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
+
+    return {
+        CSS_UNIT: new RegExp(CSS_UNIT),
+        rgb: new RegExp("rgb" + PERMISSIVE_MATCH3),
+        rgba: new RegExp("rgba" + PERMISSIVE_MATCH4),
+        hsl: new RegExp("hsl" + PERMISSIVE_MATCH3),
+        hsla: new RegExp("hsla" + PERMISSIVE_MATCH4),
+        hsv: new RegExp("hsv" + PERMISSIVE_MATCH3),
+        hsva: new RegExp("hsva" + PERMISSIVE_MATCH4),
+        hex3: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
+        hex6: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/,
+        hex4: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
+        hex8: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/
+    };
+})();
+
+// `isValidCSSUnit`
+// Take in a single string / number and check to see if it looks like a CSS unit
+// (see `matchers` above for definition).
+function isValidCSSUnit(color) {
+    return !!matchers.CSS_UNIT.exec(color);
+}
+
+// `stringInputToObject`
+// Permissive string parsing.  Take in a number of formats, and output an object
+// based on detected format.  Returns `{ r, g, b }` or `{ h, s, l }` or `{ h, s, v}`
+function stringInputToObject(color) {
+
+    color = color.replace(trimLeft,'').replace(trimRight, '').toLowerCase();
+    var named = false;
+    if (names[color]) {
+        color = names[color];
+        named = true;
+    }
+    else if (color == 'transparent') {
+        return { r: 0, g: 0, b: 0, a: 0, format: "name" };
+    }
+
+    // Try to match string input using regular expressions.
+    // Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360]
+    // Just return an object and let the conversion functions handle that.
+    // This way the result will be the same whether the tinycolor is initialized with string or object.
+    var match;
+    if ((match = matchers.rgb.exec(color))) {
+        return { r: match[1], g: match[2], b: match[3] };
+    }
+    if ((match = matchers.rgba.exec(color))) {
+        return { r: match[1], g: match[2], b: match[3], a: match[4] };
+    }
+    if ((match = matchers.hsl.exec(color))) {
+        return { h: match[1], s: match[2], l: match[3] };
+    }
+    if ((match = matchers.hsla.exec(color))) {
+        return { h: match[1], s: match[2], l: match[3], a: match[4] };
+    }
+    if ((match = matchers.hsv.exec(color))) {
+        return { h: match[1], s: match[2], v: match[3] };
+    }
+    if ((match = matchers.hsva.exec(color))) {
+        return { h: match[1], s: match[2], v: match[3], a: match[4] };
+    }
+    if ((match = matchers.hex8.exec(color))) {
+        return {
+            r: parseIntFromHex(match[1]),
+            g: parseIntFromHex(match[2]),
+            b: parseIntFromHex(match[3]),
+            a: convertHexToDecimal(match[4]),
+            format: named ? "name" : "hex8"
+        };
+    }
+    if ((match = matchers.hex6.exec(color))) {
+        return {
+            r: parseIntFromHex(match[1]),
+            g: parseIntFromHex(match[2]),
+            b: parseIntFromHex(match[3]),
+            format: named ? "name" : "hex"
+        };
+    }
+    if ((match = matchers.hex4.exec(color))) {
+        return {
+            r: parseIntFromHex(match[1] + '' + match[1]),
+            g: parseIntFromHex(match[2] + '' + match[2]),
+            b: parseIntFromHex(match[3] + '' + match[3]),
+            a: convertHexToDecimal(match[4] + '' + match[4]),
+            format: named ? "name" : "hex8"
+        };
+    }
+    if ((match = matchers.hex3.exec(color))) {
+        return {
+            r: parseIntFromHex(match[1] + '' + match[1]),
+            g: parseIntFromHex(match[2] + '' + match[2]),
+            b: parseIntFromHex(match[3] + '' + match[3]),
+            format: named ? "name" : "hex"
+        };
+    }
+
+    return false;
+}
+
+function validateWCAG2Parms(parms) {
+    // return valid WCAG2 parms for isReadable.
+    // If input parms are invalid, return {"level":"AA", "size":"small"}
+    var level, size;
+    parms = parms || {"level":"AA", "size":"small"};
+    level = (parms.level || "AA").toUpperCase();
+    size = (parms.size || "small").toLowerCase();
+    if (level !== "AA" && level !== "AAA") {
+        level = "AA";
+    }
+    if (size !== "small" && size !== "large") {
+        size = "small";
+    }
+    return {"level":level, "size":size};
+}
+
+// Node: Export function
+if (typeof module !== "undefined" && module.exports) {
+    module.exports = tinycolor;
+}
+// AMD/requirejs: Define the module
+else if (true) {
+    !(__WEBPACK_AMD_DEFINE_RESULT__ = (function () {return tinycolor;}).call(exports, __webpack_require__, exports, module),
+				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
+}
+// Browser: Expose to window
+else {
+    window.tinycolor = tinycolor;
+}
+
+})(Math);
+
+
+/***/ }),
+/* 12 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var fxAttrs = __webpack_require__(32);
+
+module.exports = {
+    type: {
+        valType: 'enumerated',
+        
+        values: [],     // listed dynamically
+        dflt: 'scatter',
+        editType: 'calc+clearAxisTypes',
+        _noTemplating: true // we handle this at a higher level
+    },
+    visible: {
+        valType: 'enumerated',
+        values: [true, false, 'legendonly'],
+        
+        dflt: true,
+        editType: 'calc',
+        
+    },
+    showlegend: {
+        valType: 'boolean',
+        
+        dflt: true,
+        editType: 'style',
+        
+    },
+    legendgroup: {
+        valType: 'string',
+        
+        dflt: '',
+        editType: 'style',
+        
+    },
+    opacity: {
+        valType: 'number',
+        
+        min: 0,
+        max: 1,
+        dflt: 1,
+        editType: 'style',
+        
+    },
+    name: {
+        valType: 'string',
+        
+        editType: 'style',
+        
+    },
+    uid: {
+        valType: 'string',
+        
+        editType: 'plot',
+        anim: true,
+        
+    },
+    ids: {
+        valType: 'data_array',
+        editType: 'calc',
+        anim: true,
+        
+    },
+    customdata: {
+        valType: 'data_array',
+        editType: 'calc',
+        
+    },
+    meta: {
+        valType: 'any',
+        arrayOk: true,
+        
+        editType: 'plot',
+        
+    },
+
+    // N.B. these cannot be 'data_array' as they do not have the same length as
+    // other data arrays and arrayOk attributes in general
+    //
+    // Maybe add another valType:
+    // https://github.com/plotly/plotly.js/issues/1894
+    selectedpoints: {
+        valType: 'any',
+        
+        editType: 'calc',
+        
+    },
+
+    hoverinfo: {
+        valType: 'flaglist',
+        
+        flags: ['x', 'y', 'z', 'text', 'name'],
+        extras: ['all', 'none', 'skip'],
+        arrayOk: true,
+        dflt: 'all',
+        editType: 'none',
+        
+    },
+    hoverlabel: fxAttrs.hoverlabel,
+    stream: {
+        token: {
+            valType: 'string',
+            noBlank: true,
+            strict: true,
+            
+            editType: 'calc',
+            
+        },
+        maxpoints: {
+            valType: 'number',
+            min: 0,
+            max: 10000,
+            dflt: 500,
+            
+            editType: 'calc',
+            
+        },
+        editType: 'calc'
+    },
+    transforms: {
+        _isLinkedToArray: 'transform',
+        editType: 'calc',
+        
+    },
+    uirevision: {
+        valType: 'any',
+        
+        editType: 'none',
+        
+    }
+};
+
+
+/***/ }),
+/* 13 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/*
+ * make a regex for matching counter ids/names ie xaxis, xaxis2, xaxis10...
+ *
+ * @param {string} head: the head of the pattern, eg 'x' matches 'x', 'x2', 'x10' etc.
+ *      'xy' is a special case for cartesian subplots: it matches 'x2y3' etc
+ * @param {Optional(string)} tail: a fixed piece after the id
+ *      eg counterRegex('scene', '.annotations') for scene2.annotations etc.
+ * @param {boolean} openEnded: if true, the string may continue past the match.
+ * @param {boolean} matchBeginning: if false, the string may start before the match.
+ */
+exports.counter = function(head, tail, openEnded, matchBeginning) {
+    var fullTail = (tail || '') + (openEnded ? '' : '$');
+    var startWithPrefix = matchBeginning === false ? '' : '^';
+    if(head === 'xy') {
+        return new RegExp(startWithPrefix + 'x([2-9]|[1-9][0-9]+)?y([2-9]|[1-9][0-9]+)?' + fullTail);
+    }
+    return new RegExp(startWithPrefix + head + '([2-9]|[1-9][0-9]+)?' + fullTail);
+};
+
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var Loggers = __webpack_require__(5);
+var noop = __webpack_require__(15);
+var pushUnique = __webpack_require__(16);
+var isPlainObject = __webpack_require__(3);
+var ExtendModule = __webpack_require__(4);
+
+var basePlotAttributes = __webpack_require__(12);
+var baseLayoutAttributes = __webpack_require__(39);
+
+var extendFlat = ExtendModule.extendFlat;
+var extendDeepAll = ExtendModule.extendDeepAll;
+
+exports.modules = {};
+exports.allCategories = {};
+exports.allTypes = [];
+exports.subplotsRegistry = {};
+exports.transformsRegistry = {};
+exports.componentsRegistry = {};
+exports.layoutArrayContainers = [];
+exports.layoutArrayRegexes = [];
+exports.traceLayoutAttributes = {};
+exports.localeRegistry = {};
+exports.apiMethodRegistry = {};
+exports.collectableSubplotTypes = null;
+
+/**
+ * Top-level register routine, exported as Plotly.register
+ *
+ * @param {object array or array of objects} _modules :
+ *  module object or list of module object to register.
+ *
+ *  A valid `moduleType: 'trace'` module has fields:
+ *  - name {string} : the trace type
+ *  - categories {array} : categories associated with this trace type,
+ *                         tested with Register.traceIs()
+ *  - meta {object} : meta info (mostly for plot-schema)
+ *
+ *  A valid `moduleType: 'locale'` module has fields:
+ *  - name {string} : the locale name. Should be a 2-digit language string ('en', 'de')
+ *                    optionally with a country/region code ('en-GB', 'de-CH'). If a country
+ *                    code is used but the base language locale has not yet been supplied,
+ *                    we will use this locale for the base as well.
+ *  - dictionary {object} : the dictionary mapping input strings to localized strings
+ *                          generally the keys should be the literal input strings, but
+ *                          if default translations are provided you can use any string as a key.
+ *  - format {object} : a `d3.locale` format specifier for this locale
+ *                      any omitted keys we'll fall back on en-US.
+ *
+ *  A valid `moduleType: 'transform'` module has fields:
+ *  - name {string} : transform name
+ *  - transform {function} : default-level transform function
+ *  - calcTransform {function} : calc-level transform function
+ *  - attributes {object} : transform attributes declarations
+ *  - supplyDefaults {function} : attributes default-supply function
+ *
+ *  A valid `moduleType: 'component'` module has fields:
+ *  - name {string} : the component name, used it with Register.getComponentMethod()
+ *                    to employ component method.
+ *
+ *  A valid `moduleType: 'apiMethod'` module has fields:
+ *  - name {string} : the api method name.
+ *  - fn {function} : the api method called with Register.call();
+ *
+ */
+exports.register = function register(_modules) {
+    exports.collectableSubplotTypes = null;
+
+    if(!_modules) {
+        throw new Error('No argument passed to Plotly.register.');
+    } else if(_modules && !Array.isArray(_modules)) {
+        _modules = [_modules];
+    }
+
+    for(var i = 0; i < _modules.length; i++) {
+        var newModule = _modules[i];
+
+        if(!newModule) {
+            throw new Error('Invalid module was attempted to be registered!');
+        }
+
+        switch(newModule.moduleType) {
+            case 'trace':
+                registerTraceModule(newModule);
+                break;
+            case 'transform':
+                registerTransformModule(newModule);
+                break;
+            case 'component':
+                registerComponentModule(newModule);
+                break;
+            case 'locale':
+                registerLocale(newModule);
+                break;
+            case 'apiMethod':
+                var name = newModule.name;
+                exports.apiMethodRegistry[name] = newModule.fn;
+                break;
+            default:
+                throw new Error('Invalid module was attempted to be registered!');
+        }
+    }
+};
+
+/**
+ * Get registered module using trace object or trace type
+ *
+ * @param {object||string} trace
+ *  trace object with prop 'type' or trace type as a string
+ * @return {object}
+ *  module object corresponding to trace type
+ */
+exports.getModule = function(trace) {
+    var _module = exports.modules[getTraceType(trace)];
+    if(!_module) return false;
+    return _module._module;
+};
+
+/**
+ * Determine if this trace type is in a given category
+ *
+ * @param {object||string} traceType
+ *  a trace (object) or trace type (string)
+ * @param {string} category
+ *  category in question
+ * @return {boolean}
+ */
+exports.traceIs = function(traceType, category) {
+    traceType = getTraceType(traceType);
+
+    // old plot.ly workspace hack, nothing to see here
+    if(traceType === 'various') return false;
+
+    var _module = exports.modules[traceType];
+
+    if(!_module) {
+        if(traceType && traceType !== 'area') {
+            Loggers.log('Unrecognized trace type ' + traceType + '.');
+        }
+
+        _module = exports.modules[basePlotAttributes.type.dflt];
+    }
+
+    return !!_module.categories[category];
+};
+
+/**
+ * Determine if this trace has a transform of the given type and return
+ * array of matching indices.
+ *
+ * @param {object} data
+ *  a trace object (member of data or fullData)
+ * @param {string} type
+ *  type of trace to test
+ * @return {array}
+ *  array of matching indices. If none found, returns []
+ */
+exports.getTransformIndices = function(data, type) {
+    var indices = [];
+    var transforms = data.transforms || [];
+    for(var i = 0; i < transforms.length; i++) {
+        if(transforms[i].type === type) {
+            indices.push(i);
+        }
+    }
+    return indices;
+};
+
+/**
+ * Determine if this trace has a transform of the given type
+ *
+ * @param {object} data
+ *  a trace object (member of data or fullData)
+ * @param {string} type
+ *  type of trace to test
+ * @return {boolean}
+ */
+exports.hasTransform = function(data, type) {
+    var transforms = data.transforms || [];
+    for(var i = 0; i < transforms.length; i++) {
+        if(transforms[i].type === type) {
+            return true;
+        }
+    }
+    return false;
+};
+
+/**
+ * Retrieve component module method. Falls back on noop if either the
+ * module or the method is missing, so the result can always be safely called
+ *
+ * @param {string} name
+ *  name of component (as declared in component module)
+ * @param {string} method
+ *  name of component module method
+ * @return {function}
+ */
+exports.getComponentMethod = function(name, method) {
+    var _module = exports.componentsRegistry[name];
+
+    if(!_module) return noop;
+    return _module[method] || noop;
+};
+
+/**
+ * Call registered api method.
+ *
+ * @param {string} name : api method name
+ * @param {...array} args : arguments passed to api method
+ * @return {any} : returns api method output
+ */
+exports.call = function() {
+    var name = arguments[0];
+    var args = [].slice.call(arguments, 1);
+    return exports.apiMethodRegistry[name].apply(null, args);
+};
+
+function registerTraceModule(_module) {
+    var thisType = _module.name;
+    var categoriesIn = _module.categories;
+    var meta = _module.meta;
+
+    if(exports.modules[thisType]) {
+        Loggers.log('Type ' + thisType + ' already registered');
+        return;
+    }
+
+    if(!exports.subplotsRegistry[_module.basePlotModule.name]) {
+        registerSubplot(_module.basePlotModule);
+    }
+
+    var categoryObj = {};
+    for(var i = 0; i < categoriesIn.length; i++) {
+        categoryObj[categoriesIn[i]] = true;
+        exports.allCategories[categoriesIn[i]] = true;
+    }
+
+    exports.modules[thisType] = {
+        _module: _module,
+        categories: categoryObj
+    };
+
+    if(meta && Object.keys(meta).length) {
+        exports.modules[thisType].meta = meta;
+    }
+
+    exports.allTypes.push(thisType);
+
+    for(var componentName in exports.componentsRegistry) {
+        mergeComponentAttrsToTrace(componentName, thisType);
+    }
+
+    /*
+     * Collect all trace layout attributes in one place for easier lookup later
+     * but don't merge them into the base schema as it would confuse the docs
+     * (at least after https://github.com/plotly/documentation/issues/202 gets done!)
+     */
+    if(_module.layoutAttributes) {
+        extendFlat(exports.traceLayoutAttributes, _module.layoutAttributes);
+    }
+}
+
+function registerSubplot(_module) {
+    var plotType = _module.name;
+
+    if(exports.subplotsRegistry[plotType]) {
+        Loggers.log('Plot type ' + plotType + ' already registered.');
+        return;
+    }
+
+    // relayout array handling will look for component module methods with this
+    // name and won't find them because this is a subplot module... but that
+    // should be fine, it will just fall back on redrawing the plot.
+    findArrayRegexps(_module);
+
+    // not sure what's best for the 'cartesian' type at this point
+    exports.subplotsRegistry[plotType] = _module;
+
+    for(var componentName in exports.componentsRegistry) {
+        mergeComponentAttrsToSubplot(componentName, _module.name);
+    }
+}
+
+function registerComponentModule(_module) {
+    if(typeof _module.name !== 'string') {
+        throw new Error('Component module *name* must be a string.');
+    }
+
+    var name = _module.name;
+    exports.componentsRegistry[name] = _module;
+
+    if(_module.layoutAttributes) {
+        if(_module.layoutAttributes._isLinkedToArray) {
+            pushUnique(exports.layoutArrayContainers, name);
+        }
+        findArrayRegexps(_module);
+    }
+
+    for(var traceType in exports.modules) {
+        mergeComponentAttrsToTrace(name, traceType);
+    }
+
+    for(var subplotName in exports.subplotsRegistry) {
+        mergeComponentAttrsToSubplot(name, subplotName);
+    }
+
+    for(var transformType in exports.transformsRegistry) {
+        mergeComponentAttrsToTransform(name, transformType);
+    }
+
+    if(_module.schema && _module.schema.layout) {
+        extendDeepAll(baseLayoutAttributes, _module.schema.layout);
+    }
+}
+
+function registerTransformModule(_module) {
+    if(typeof _module.name !== 'string') {
+        throw new Error('Transform module *name* must be a string.');
+    }
+
+    var prefix = 'Transform module ' + _module.name;
+    var hasTransform = typeof _module.transform === 'function';
+    var hasCalcTransform = typeof _module.calcTransform === 'function';
+
+    if(!hasTransform && !hasCalcTransform) {
+        throw new Error(prefix + ' is missing a *transform* or *calcTransform* method.');
+    }
+    if(hasTransform && hasCalcTransform) {
+        Loggers.log([
+            prefix + ' has both a *transform* and *calcTransform* methods.',
+            'Please note that all *transform* methods are executed',
+            'before all *calcTransform* methods.'
+        ].join(' '));
+    }
+    if(!isPlainObject(_module.attributes)) {
+        Loggers.log(prefix + ' registered without an *attributes* object.');
+    }
+    if(typeof _module.supplyDefaults !== 'function') {
+        Loggers.log(prefix + ' registered without a *supplyDefaults* method.');
+    }
+
+    exports.transformsRegistry[_module.name] = _module;
+
+    for(var componentName in exports.componentsRegistry) {
+        mergeComponentAttrsToTransform(componentName, _module.name);
+    }
+}
+
+function registerLocale(_module) {
+    var locale = _module.name;
+    var baseLocale = locale.split('-')[0];
+
+    var newDict = _module.dictionary;
+    var newFormat = _module.format;
+    var hasDict = newDict && Object.keys(newDict).length;
+    var hasFormat = newFormat && Object.keys(newFormat).length;
+
+    var locales = exports.localeRegistry;
+
+    var localeObj = locales[locale];
+    if(!localeObj) locales[locale] = localeObj = {};
+
+    // Should we use this dict for the base locale?
+    // In case we're overwriting a previous dict for this locale, check
+    // whether the base matches the full locale dict now. If we're not
+    // overwriting, locales[locale] is undefined so this just checks if
+    // baseLocale already had a dict or not.
+    // Same logic for dateFormats
+    if(baseLocale !== locale) {
+        var baseLocaleObj = locales[baseLocale];
+        if(!baseLocaleObj) locales[baseLocale] = baseLocaleObj = {};
+
+        if(hasDict && baseLocaleObj.dictionary === localeObj.dictionary) {
+            baseLocaleObj.dictionary = newDict;
+        }
+        if(hasFormat && baseLocaleObj.format === localeObj.format) {
+            baseLocaleObj.format = newFormat;
+        }
+    }
+
+    if(hasDict) localeObj.dictionary = newDict;
+    if(hasFormat) localeObj.format = newFormat;
+}
+
+function findArrayRegexps(_module) {
+    if(_module.layoutAttributes) {
+        var arrayAttrRegexps = _module.layoutAttributes._arrayAttrRegexps;
+        if(arrayAttrRegexps) {
+            for(var i = 0; i < arrayAttrRegexps.length; i++) {
+                pushUnique(exports.layoutArrayRegexes, arrayAttrRegexps[i]);
+            }
+        }
+    }
+}
+
+function mergeComponentAttrsToTrace(componentName, traceType) {
+    var componentSchema = exports.componentsRegistry[componentName].schema;
+    if(!componentSchema || !componentSchema.traces) return;
+
+    var traceAttrs = componentSchema.traces[traceType];
+    if(traceAttrs) {
+        extendDeepAll(exports.modules[traceType]._module.attributes, traceAttrs);
+    }
+}
+
+function mergeComponentAttrsToTransform(componentName, transformType) {
+    var componentSchema = exports.componentsRegistry[componentName].schema;
+    if(!componentSchema || !componentSchema.transforms) return;
+
+    var transformAttrs = componentSchema.transforms[transformType];
+    if(transformAttrs) {
+        extendDeepAll(exports.transformsRegistry[transformType].attributes, transformAttrs);
+    }
+}
+
+function mergeComponentAttrsToSubplot(componentName, subplotName) {
+    var componentSchema = exports.componentsRegistry[componentName].schema;
+    if(!componentSchema || !componentSchema.subplots) return;
+
+    var subplotModule = exports.subplotsRegistry[subplotName];
+    var subplotAttrs = subplotModule.layoutAttributes;
+    var subplotAttr = subplotModule.attr === 'subplot' ? subplotModule.name : subplotModule.attr;
+    if(Array.isArray(subplotAttr)) subplotAttr = subplotAttr[0];
+
+    var componentLayoutAttrs = componentSchema.subplots[subplotAttr];
+    if(subplotAttrs && componentLayoutAttrs) {
+        extendDeepAll(subplotAttrs, componentLayoutAttrs);
+    }
+}
+
+function getTraceType(traceType) {
+    if(typeof traceType === 'object') traceType = traceType.type;
+    return traceType;
+}
+
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+// Simple helper functions
+// none of these need any external deps
+
+module.exports = function noop() {};
+
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/**
+ * Push array with unique items
+ *
+ * Ignores falsy items, except 0 so we can use it to construct arrays of indices.
+ *
+ * @param {array} array
+ *  array to be filled
+ * @param {any} item
+ *  item to be or not to be inserted
+ * @return {array}
+ *  ref to array (now possibly containing one more item)
+ *
+ */
+module.exports = function pushUnique(array, item) {
+    if(item instanceof RegExp) {
+        var itemStr = item.toString();
+        for(var i = 0; i < array.length; i++) {
+            if(array[i] instanceof RegExp && array[i].toString() === itemStr) {
+                return array;
+            }
+        }
+        array.push(item);
+    } else if((item || item === 0) && array.indexOf(item) === -1) array.push(item);
+
+    return array;
+};
+
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+// Simple helper functions
+// none of these need any external deps
+
+module.exports = function identity(d) { return d; };
+
+
+/***/ }),
+/* 18 */
+/***/ (function(module, exports) {
+
+module.exports = {"name":"plotlywidget","version":"0.11.0","description":"The plotly.py ipywidgets library","author":"The plotly.py team","license":"MIT","main":"src/index.js","repository":{"type":"git","url":"https://github.com/plotly/plotly.py"},"keywords":["jupyter","widgets","ipython","ipywidgets","plotly"],"files":["src/**/*.js","dist/*.js"],"scripts":{"clean":"rimraf dist/ && rimraf ../plotlywidget/static","prepublish":"webpack","test":"echo \"Error: no test specified\" && exit 1"},"devDependencies":{"webpack":"^3.10.0","rimraf":"^2.6.1","ify-loader":"^1.1.0"},"dependencies":{"plotly.js":"1.48.1","@jupyter-widgets/base":"^1.0.0","lodash":"^4.17.4"},"jupyterlab":{"extension":"src/jupyterlab-plugin"}}
+
+/***/ }),
+/* 19 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// Export widget models and views, and the npm package version number.
+module.exports = __webpack_require__(20);
+module.exports['version'] = __webpack_require__(18).version;
+
+
+/***/ }),
+/* 20 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var widgets = __webpack_require__(21);
+var _ = __webpack_require__(22);
+
+window.PlotlyConfig = {MathJaxConfig: 'local'};
+var Plotly = __webpack_require__(24);
+var PlotlyIndex = __webpack_require__(25);
+var semver_range = "^" + __webpack_require__(18).version;
+
+// Model
+// =====
+/**
+ * A FigureModel holds a mirror copy of the state of a FigureWidget on
+ * the Python side.  There is a one-to-one relationship between JavaScript
+ * FigureModels and Python FigureWidgets. The JavaScript FigureModel is
+ * initialized as soon as a Python FigureWidget initialized, this happens
+ * even before the widget is first displayed in the Notebook
+ * @type {widgets.DOMWidgetModel}
+ */
+var FigureModel = widgets.DOMWidgetModel.extend({
+
+    defaults: _.extend(widgets.DOMWidgetModel.prototype.defaults(), {
+        // Model metadata
+        // --------------
+        _model_name: "FigureModel",
+        _view_name: "FigureView",
+        _model_module: "plotlywidget",
+        _view_module: "plotlywidget",
+        _view_module_version: semver_range,
+        _model_module_version: semver_range,
+
+        // Data and Layout
+        // ---------------
+        // The _data and _layout properties are synchronized with the
+        // Python side on initialization only.  After initialization, these
+        // properties are kept in sync through the use of the _py2js_*
+        // messages
+        _data: [],
+        _layout: {},
+        _config: {},
+
+        // Python -> JS messages
+        // ---------------------
+        // Messages are implemented using trait properties. This is done so
+        // that we can take advantage of ipywidget's binary serialization
+        // protocol.
+        //
+        // Messages are sent by the Python side by assigning the message
+        // contents to the appropriate _py2js_* property, and then immediately
+        // setting it to None.  Messages are received by the JavaScript
+        // side by registering property change callbacks in the initialize
+        // methods for FigureModel and FigureView. e.g. (where this is a
+        // FigureModel):
+        //
+        //      this.on('change:_py2js_addTraces', this.do_addTraces, this);
+        //
+        // Message handling methods, do_addTraces, are responsible for
+        // performing the appropriate action if the message contents are
+        // not null
+
+        /**
+         * @typedef {null|Object} Py2JsAddTracesMsg
+         * @property {Array.<Object>} trace_data
+         *  Array of traces to append to the end of the figure's current traces
+         * @property {Number} trace_edit_id
+         *  Edit ID to use when returning trace deltas using
+         *  the _js2py_traceDeltas message.
+         * @property {Number} layout_edit_id
+         *  Edit ID to use when returning layout deltas using
+         *  the _js2py_layoutDelta message.
+         */
+        _py2js_addTraces: null,
+
+        /**
+         * @typedef {null|Object} Py2JsDeleteTracesMsg
+         * @property {Array.<Number>} delete_inds
+         *  Array of indexes of traces to be deleted, in ascending order
+         * @property {Number} trace_edit_id
+         *  Edit ID to use when returning trace deltas using
+         *  the _js2py_traceDeltas message.
+         * @property {Number} layout_edit_id
+         *  Edit ID to use when returning layout deltas using
+         *  the _js2py_layoutDelta message.
+         */
+        _py2js_deleteTraces: null,
+
+        /**
+         * @typedef {null|Object} Py2JsMoveTracesMsg
+         * @property {Array.<Number>} current_trace_inds
+         *  Array of the current indexes of traces to be moved
+         * @property {Array.<Number>} new_trace_inds
+         *  Array of the new indexes that traces should be moved to.
+         */
+        _py2js_moveTraces: null,
+
+
+        /**
+         * @typedef {null|Object} Py2JsRestyleMsg
+         * @property {Object} restyle_data
+         *  Restyle data as accepted by Plotly.restyle
+         * @property {null|Array.<Number>} restyle_traces
+         *  Array of indexes of the traces that the resytle operation applies
+         *  to, or null to apply the operation to all traces
+         * @property {Number} trace_edit_id
+         *  Edit ID to use when returning trace deltas using
+         *  the _js2py_traceDeltas message
+         * @property {Number} layout_edit_id
+         *  Edit ID to use when returning layout deltas using
+         *  the _js2py_layoutDelta message
+         * @property {null|String} source_view_id
+         *  view_id of the FigureView that triggered the original restyle
+         *  event (e.g. by clicking the legend), or null if the restyle was
+         *  triggered from Python
+         */
+        _py2js_restyle: null,
+
+        /**
+         * @typedef {null|Object} Py2JsRelayoutMsg
+         * @property {Object} relayout_data
+         *  Relayout data as accepted by Plotly.relayout
+         * @property {Number} layout_edit_id
+         *  Edit ID to use when returning layout deltas using
+         *  the _js2py_layoutDelta message
+         * @property {null|String} source_view_id
+         *  view_id of the FigureView that triggered the original relayout
+         *  event (e.g. by clicking the zoom button), or null if the
+         *  relayout was triggered from Python
+         */
+        _py2js_relayout: null,
+
+        /**
+         * @typedef {null|Object} Py2JsUpdateMsg
+         * @property {Object} style_data
+         *  Style data as accepted by Plotly.update
+         * @property {Object} layout_data
+         *  Layout data as accepted by Plotly.update
+         * @property {Array.<Number>} style_traces
+         *  Array of indexes of the traces that the update operation applies
+         *  to, or null to apply the operation to all traces
+         * @property {Number} trace_edit_id
+         *  Edit ID to use when returning trace deltas using
+         *  the _js2py_traceDeltas message
+         * @property {Number} layout_edit_id
+         *  Edit ID to use when returning layout deltas using
+         *  the _js2py_layoutDelta message
+         * @property {null|String} source_view_id
+         *  view_id of the FigureView that triggered the original update
+         *  event (e.g. by clicking a button), or null if the update was
+         *  triggered from Python
+         */
+        _py2js_update: null,
+
+        /**
+         * @typedef {null|Object} Py2JsAnimateMsg
+         * @property {Object} style_data
+         *  Style data as accepted by Plotly.animate
+         * @property {Object} layout_data
+         *  Layout data as accepted by Plotly.animate
+         * @property {Array.<Number>} style_traces
+         *  Array of indexes of the traces that the animate operation applies
+         *  to, or null to apply the operation to all traces
+         * @property {Object} animation_opts
+         *  Animation options as accepted by Plotly.animate
+         * @property {Number} trace_edit_id
+         *  Edit ID to use when returning trace deltas using
+         *  the _js2py_traceDeltas message
+         * @property {Number} layout_edit_id
+         *  Edit ID to use when returning layout deltas using
+         *  the _js2py_layoutDelta message
+         * @property {null|String} source_view_id
+         *  view_id of the FigureView that triggered the original animate
+         *  event (e.g. by clicking a button), or null if the update was
+         *  triggered from Python
+         */
+        _py2js_animate: null,
+
+        /**
+         * @typedef {null|Object} Py2JsRemoveLayoutPropsMsg
+         * @property {Array.<Array.<String|Number>>} remove_props
+         *  Array of property paths to remove. Each propery path is an
+         *  array of property names or array indexes that locate a property
+         *  inside the _layout object
+         */
+        _py2js_removeLayoutProps: null,
+
+        /**
+         * @typedef {null|Object} Py2JsRemoveTracePropsMsg
+         * @property {Number} remove_trace
+         *  The index of the trace from which to remove properties
+         * @property {Array.<Array.<String|Number>>} remove_props
+         *  Array of property paths to remove. Each propery path is an
+         *  array of property names or array indexes that locate a property
+         *  inside the _data[remove_trace] object
+         */
+        _py2js_removeTraceProps: null,
+
+
+        // JS -> Python messages
+        // ---------------------
+        // Messages are sent by the JavaScript side by assigning the
+        // message contents to the appropriate _js2py_* property and then
+        // calling the `touch` method on the view that triggered the
+        // change. e.g. (where this is a FigureView):
+        //
+        //      this.model.set('_js2py_restyle', data);
+        //      this.touch();
+        //
+        // The Python side is responsible for setting the property to None
+        // after receiving the message.
+        //
+        // Message trigger logic is described in the corresponding
+        // handle_plotly_* methods of FigureView
+
+        /**
+         * @typedef {null|Object} Js2PyRestyleMsg
+         * @property {Object} style_data
+         *  Style data that was passed to Plotly.restyle
+         * @property {Array.<Number>} style_traces
+         *  Array of indexes of the traces that the restyle operation
+         *  was applied to, or null if applied to all traces
+         * @property {String} source_view_id
+         *  view_id of the FigureView that triggered the original restyle
+         *  event (e.g. by clicking the legend)
+         */
+        _js2py_restyle: null,
+
+        /**
+         * @typedef {null|Object} Js2PyRelayoutMsg
+         * @property {Object} relayout_data
+         *  Relayout data that was passed to Plotly.relayout
+         * @property {String} source_view_id
+         *  view_id of the FigureView that triggered the original relayout
+         *  event (e.g. by clicking the zoom button)
+         */
+        _js2py_relayout: null,
+
+        /**
+         * @typedef {null|Object} Js2PyUpdateMsg
+         * @property {Object} style_data
+         *  Style data that was passed to Plotly.update
+         * @property {Object} layout_data
+         *  Layout data that was passed to Plotly.update
+         * @property {Array.<Number>} style_traces
+         *  Array of indexes of the traces that the update operation applied
+         *  to, or null if applied to all traces
+         * @property {String} source_view_id
+         *  view_id of the FigureView that triggered the original relayout
+         *  event (e.g. by clicking the zoom button)
+         */
+        _js2py_update: null,
+
+        /**
+         * @typedef {null|Object} Js2PyLayoutDeltaMsg
+         * @property {Object} layout_delta
+         *  The layout delta object that contains all of the properties of
+         *  _fullLayout that are not identical to those in the
+         *  FigureModel's _layout property
+         * @property {Number} layout_edit_id
+         *  Edit ID of message that triggered the creation of layout delta
+         */
+        _js2py_layoutDelta: null,
+
+        /**
+         * @typedef {null|Object} Js2PyTraceDeltasMsg
+         * @property {Array.<Object>} trace_deltas
+         *  Array of trace delta objects. Each trace delta contains the
+         *  trace's uid along with all of the properties of _fullData that
+         *  are not identical to those in the FigureModel's _data property
+         * @property {Number} trace_edit_id
+         *  Edit ID of message that triggered the creation of trace deltas
+         */
+        _js2py_traceDeltas: null,
+
+
+        /**
+         * Object representing a collection of points for use in click, hover,
+         * and selection events
+         * @typedef {Object} Points
+         * @property {Array.<Number>} trace_indexes
+         *  Array of the trace index for each point
+         * @property {Array.<Number>} point_indexes
+         *  Array of the index of each point in its own trace
+         * @property {null|Array.<Number>} xs
+         *  Array of the x coordinate of each point (for cartesian trace types)
+         *  or null (for non-cartesian trace types)
+         * @property {null|Array.<Number>} ys
+         *  Array of the y coordinate of each point (for cartesian trace types)
+         *  or null (for non-cartesian trace types
+         * @property {null|Array.<Number>} zs
+         *  Array of the z coordinate of each point (for 3D cartesian
+         *  trace types)
+         *  or null (for non-3D-cartesian trace types)
+         */
+
+        /**
+         * Object representing the state of the input devices during a
+         * plotly event
+         * @typedef {Object} InputDeviceState
+         * @property {boolean} alt - true if alt key pressed,
+         * false otherwise
+         * @property {boolean} ctrl - true if ctrl key pressed,
+         * false otherwise
+         * @property {boolean} meta - true if meta key pressed,
+         * false otherwise
+         * @property {boolean} shift - true if shift key pressed,
+         * false otherwise
+         *
+         * @property {boolean} button
+         *  Indicates which button was pressed on the mouse to trigger the
+         *  event.
+         *    0: Main button pressed, usually the left button or the
+         *       un-initialized state
+         *    1: Auxiliary button pressed, usually the wheel button or
+         *       the middle button (if present)
+         *    2: Secondary button pressed, usually the right button
+         *    3: Fourth button, typically the Browser Back button
+         *    4: Fifth button, typically the Browser Forward button
+         *
+         * @property {boolean} buttons
+         *  Indicates which buttons were pressed on the mouse when the event
+         *  is triggered.
+         *    0  : No button or un-initialized
+         *    1  : Primary button (usually left)
+         *    2  : Secondary button (usually right)
+         *    4  : Auxilary button (usually middle or mouse wheel button)
+         *    8  : 4th button (typically the "Browser Back" button)
+         *    16 : 5th button (typically the "Browser Forward" button)
+         *
+         *  Combinations of buttons are represented by the sum of the codes
+         *  above. e.g. a value of 7 indicates buttons 1 (primary),
+         *  2 (secondary), and 4 (auxilary) were pressed during the event
+         */
+
+        /**
+         * @typedef {Object} BoxSelectorState
+         * @property {Array.<Number>} xrange
+         *  Two element array containing the x-range of the box selection
+         * @property {Array.<Number>} yrange
+         *  Two element array containing the y-range of the box selection
+         */
+
+        /**
+         * @typedef {Object} LassoSelectorState
+         * @property {Array.<Number>} xs
+         *  Array of the x-coordinates of the lasso selection region
+         * @property {Array.<Number>} ys
+         *  Array of the y-coordinates of the lasso selection region
+         */
+
+        /**
+         * Object representing the state of the selection tool during a
+         * plotly_select event
+         * @typedef {Object} Selector
+         * @property {String} type
+         *  Selection type. One of: 'box', or 'lasso'
+         * @property {BoxSelectorState|LassoSelectorState} selector_state
+         */
+
+        /**
+         * @typedef {null|Object} Js2PyPointsCallbackMsg
+         * @property {string} event_type
+         *  Name of the triggering event. One of 'plotly_click',
+         *  'plotly_hover', 'plotly_unhover', or 'plotly_selected'
+         * @property {null|Points} points
+         *  Points object for event
+         * @property {null|InputDeviceState} device_state
+         *  InputDeviceState object for event
+         * @property {null|Selector} selector
+         *  State of the selection tool for 'plotly_selected' events, null
+         *  for other event types
+         */
+        _js2py_pointsCallback: null,
+
+        // Message tracking
+        // ----------------
+        /**
+         * @type {Number}
+         * layout_edit_id of the last layout modification operation
+         * requested by the Python side
+         */
+        _last_layout_edit_id: 0,
+
+        /**
+         * @type {Number}
+         * trace_edit_id of the last trace modification operation
+         * requested by the Python side
+         */
+        _last_trace_edit_id: 0
+    }),
+
+    /**
+     * Initialize FigureModel. Called when the Python FigureWidget is first
+     * constructed
+     */
+    initialize: function() {
+        FigureModel.__super__.initialize.apply(this, arguments);
+
+        this.on("change:_data", this.do_data, this);
+        this.on("change:_layout", this.do_layout, this);
+        this.on("change:_py2js_addTraces", this.do_addTraces, this);
+        this.on("change:_py2js_deleteTraces", this.do_deleteTraces, this);
+        this.on("change:_py2js_moveTraces", this.do_moveTraces, this);
+        this.on("change:_py2js_restyle", this.do_restyle, this);
+        this.on("change:_py2js_relayout", this.do_relayout, this);
+        this.on("change:_py2js_update", this.do_update, this);
+        this.on("change:_py2js_animate", this.do_animate, this);
+        this.on("change:_py2js_removeLayoutProps",
+            this.do_removeLayoutProps, this);
+        this.on("change:_py2js_removeTraceProps",
+            this.do_removeTraceProps, this);
+    },
+
+    /**
+     * Input a trace index specification and return an Array of trace
+     * indexes where:
+     *
+     *  - null|undefined -> Array of all traces
+     *  - Trace index as Number -> Single element array of input index
+     *  - Array of trace indexes -> Input array unchanged
+     *
+     * @param {undefined|null|Number|Array.<Number>} trace_indexes
+     * @returns {Array.<Number>}
+     *  Array of trace indexes
+     * @private
+     */
+    _normalize_trace_indexes: function (trace_indexes) {
+        if (trace_indexes === null || trace_indexes === undefined) {
+            var numTraces = this.get("_data").length;
+            trace_indexes = _.range(numTraces);
+        }
+        if (!Array.isArray(trace_indexes)) {
+            // Make sure idx is an array
+            trace_indexes = [trace_indexes];
+        }
+        return trace_indexes
+    },
+
+    /**
+     * Log changes to the _data trait
+     *
+     * This should only happed on FigureModel initialization
+     */
+    do_data: function () {
+
+    },
+
+    /**
+     * Log changes to the _layout trait
+     *
+     * This should only happed on FigureModel initialization
+     */
+    do_layout: function () {
+
+    },
+
+    /**
+     * Handle addTraces message
+     */
+    do_addTraces: function () {
+        // add trace to plot
+        /** @type {Py2JsAddTracesMsg} */
+        var msgData = this.get("_py2js_addTraces");
+
+        if (msgData !== null) {
+            var currentTraces = this.get("_data");
+            var newTraces = msgData.trace_data;
+            _.forEach(newTraces, function (newTrace) {
+                currentTraces.push(newTrace);
+            })
+        }
+    },
+
+    /**
+     * Handle deleteTraces message
+     */
+    do_deleteTraces: function () {
+        // remove traces from plot
+
+        /** @type {Py2JsDeleteTracesMsg} */
+        var msgData = this.get("_py2js_deleteTraces");
+
+        if (msgData !== null) {
+            var delete_inds = msgData.delete_inds;
+            var tracesData = this.get("_data");
+
+            // Remove del inds in reverse order so indexes remain valid
+            // throughout loop
+            delete_inds.slice().reverse().forEach(function (del_ind) {
+                tracesData.splice(del_ind, 1);
+            });
+        }
+    },
+
+    /**
+     * Handle moveTraces message
+     */
+    do_moveTraces: function () {
+
+        /** @type {Py2JsMoveTracesMsg} */
+        var msgData = this.get("_py2js_moveTraces");
+
+        if (msgData !== null) {
+            var tracesData = this.get("_data");
+            var currentInds = msgData.current_trace_inds;
+            var newInds = msgData.new_trace_inds;
+
+            performMoveTracesLike(tracesData, currentInds, newInds);
+        }
+    },
+
+    /**
+     * Handle restyle message
+     */
+    do_restyle: function () {
+
+        /** @type {Py2JsRestyleMsg} */
+        var msgData = this.get("_py2js_restyle");
+        if (msgData !== null) {
+            var restyleData = msgData.restyle_data;
+            var restyleTraces = this._normalize_trace_indexes(
+                msgData.restyle_traces);
+            performRestyleLike(this.get("_data"), restyleData, restyleTraces);
+        }
+    },
+
+    /**
+     * Handle relayout message
+     */
+    do_relayout: function () {
+
+        /** @type {Py2JsRelayoutMsg} */
+        var msgData = this.get("_py2js_relayout");
+
+        if (msgData !== null) {
+            performRelayoutLike(this.get("_layout"), msgData.relayout_data);
+        }
+    },
+
+    /**
+     * Handle update message
+     */
+    do_update: function() {
+
+        /** @type {Py2JsUpdateMsg} */
+        var msgData = this.get("_py2js_update");
+
+        if (msgData !== null) {
+            var style = msgData.style_data;
+            var layout = msgData.layout_data;
+            var styleTraces = this._normalize_trace_indexes(
+                msgData.style_traces);
+            performRestyleLike(this.get("_data"), style, styleTraces);
+            performRelayoutLike(this.get("_layout"), layout);
+        }
+    },
+
+    /**
+     * Handle animate message
+     */
+    do_animate: function () {
+
+        /** @type {Py2JsAnimateMsg} */
+        var msgData = this.get("_py2js_animate");
+        if (msgData !== null) {
+
+            var styles = msgData.style_data;
+            var layout = msgData.layout_data;
+            var trace_indexes = this._normalize_trace_indexes(
+                msgData.style_traces);
+
+            for (var i = 0; i < styles.length; i++) {
+                var style = styles[i];
+                var trace_index = trace_indexes[i];
+                var trace = this.get("_data")[trace_index];
+                performRelayoutLike(trace, style);
+            }
+
+            performRelayoutLike(this.get("_layout"), layout);
+        }
+    },
+
+    /**
+     * Handle removeLayoutProps message
+     */
+    do_removeLayoutProps: function () {
+        /** @type {Py2JsRemoveLayoutPropsMsg} */
+        var msgData = this.get("_py2js_removeLayoutProps");
+
+        if (msgData !== null) {
+            var keyPaths = msgData.remove_props;
+            var layout = this.get("_layout");
+            performRemoveProps(layout, keyPaths);
+        }
+    },
+
+    /**
+     * Handle removeTraceProps message
+     */
+    do_removeTraceProps: function () {
+        /** @type {Py2JsRemoveTracePropsMsg} */
+        var msgData = this.get("_py2js_removeTraceProps");
+        if (msgData !== null) {
+            var keyPaths = msgData.remove_props;
+            var traceIndex = msgData.remove_trace;
+            var trace = this.get("_data")[traceIndex];
+
+            performRemoveProps(trace, keyPaths);
+        }
+    }
+}, {
+    serializers: _.extend({
+        _data: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _layout: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_addTraces: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_deleteTraces: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_moveTraces: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_restyle: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_relayout: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_update: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_animate: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_removeLayoutProps: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _py2js_removeTraceProps: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _js2py_restyle: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _js2py_relayout: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _js2py_update: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _js2py_layoutDelta: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _js2py_traceDeltas: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer},
+        _js2py_pointsCallback: { deserialize: py2js_deserializer,
+            serialize: js2py_serializer}
+    }, widgets.DOMWidgetModel.serializers)
+});
+
+// View
+// ====
+/**
+ * A FigureView manages the visual presentation of a single Plotly.js
+ * figure for a single notebook output cell. Each FigureView has a
+ * reference to FigureModel.  Multiple views may share a single model
+ * instance, as is the case when a Python FigureWidget is displayed in
+ * multiple notebook output cells.
+ *
+ * @type {widgets.DOMWidgetView}
+ */
+var FigureView = widgets.DOMWidgetView.extend({
+
+    /**
+     * The perform_render method is called by processPhosphorMessage
+     * after the widget's DOM element has been attached to the notebook
+     * output cell. This happens after the initialize of the
+     * FigureModel, and it won't happen at all if the Python FigureWidget
+     * is never displayed in a notebook output cell
+     */
+    perform_render: function() {
+
+        var that = this;
+
+        // Wire up message property callbacks
+        // ----------------------------------
+        // Python -> JS event properties
+        this.model.on("change:_py2js_addTraces",
+            this.do_addTraces, this);
+        this.model.on("change:_py2js_deleteTraces",
+            this.do_deleteTraces, this);
+        this.model.on("change:_py2js_moveTraces",
+            this.do_moveTraces, this);
+        this.model.on("change:_py2js_restyle",
+            this.do_restyle, this);
+        this.model.on("change:_py2js_relayout",
+            this.do_relayout, this);
+        this.model.on("change:_py2js_update",
+            this.do_update, this);
+        this.model.on("change:_py2js_animate",
+            this.do_animate, this);
+
+        // MathJax configuration
+        // ---------------------
+        if (window.MathJax) {
+            MathJax.Hub.Config({SVG: {font: "STIX-Web"}});
+        }
+
+        // Get message ids
+        // ---------------------
+        var layout_edit_id = this.model.get("_last_layout_edit_id");
+        var trace_edit_id = this.model.get("_last_trace_edit_id");
+
+        // Set view UID
+        // ------------
+        this.viewID = PlotlyIndex.randstr();
+
+        // Initialize Plotly.js figure
+        // ---------------------------
+        // We must clone the model's data and layout properties so that
+        // the model is not directly mutated by the Plotly.js library.
+        var initialTraces = _.cloneDeep(this.model.get("_data"));
+        var initialLayout = _.cloneDeep(this.model.get("_layout"));
+        var config = this.model.get("_config");
+
+        Plotly.newPlot(that.el, initialTraces, initialLayout, config).then(
+            function () {
+
+                // ### Send trace deltas ###
+                // We create an array of deltas corresponding to the new
+                // traces.
+                that._sendTraceDeltas(trace_edit_id);
+
+                // ### Send layout delta ###
+                that._sendLayoutDelta(layout_edit_id);
+
+                // Wire up plotly event callbacks
+                that.el.on("plotly_restyle",
+                    function (update) {
+                        that.handle_plotly_restyle(update)
+                    });
+                that.el.on("plotly_relayout",
+                    function (update) {
+                        that.handle_plotly_relayout(update)
+                    });
+                that.el.on("plotly_update",
+                    function (update) {
+                        that.handle_plotly_update(update)
+                    });
+                that.el.on("plotly_click",
+                    function (update) {
+                        that.handle_plotly_click(update)
+                    });
+                that.el.on("plotly_hover",
+                    function (update) {
+                        that.handle_plotly_hover(update)
+                    });
+                that.el.on("plotly_unhover",
+                    function (update) {
+                        that.handle_plotly_unhover(update)
+                    });
+                that.el.on("plotly_selected",
+                    function (update) {
+                        that.handle_plotly_selected(update)
+                    });
+                that.el.on("plotly_deselect",
+                    function (update) {
+                        that.handle_plotly_deselect(update)
+                    });
+                that.el.on("plotly_doubleclick",
+                    function (update) {
+                        that.handle_plotly_doubleclick(update)
+                    });
+
+                // Emit event indicating that the widget has finished
+                // rendering
+                var event = new CustomEvent("plotlywidget-after-render",
+                    { "detail": {"element": that.el, 'viewID': that.viewID}});
+
+                // Dispatch/Trigger/Fire the event
+                document.dispatchEvent(event);
+            });
+    },
+
+    /**
+     * Respond to phosphorjs events
+     */
+    processPhosphorMessage: function(msg) {
+        FigureView.__super__.processPhosphorMessage.apply(this, arguments);
+        var that = this;
+        switch (msg.type) {
+            case 'before-attach':
+                // Render an initial empty figure. This establishes with
+                // the page that the element will not be empty, avoiding
+                // some occasions where the dynamic sizing behavior leads
+                // to collapsed figure dimensions.
+                var axisHidden = {
+                    showgrid: false, showline: false, tickvals: []};
+
+                Plotly.newPlot(that.el, [], {
+                    xaxis: axisHidden, yaxis: axisHidden
+                });
+
+                window.addEventListener("resize", function(){
+                    that.autosizeFigure();
+                });
+                break;
+            case 'after-attach':
+                // Rendering actual figure in the after-attach event allows
+                // Plotly.js to size the figure to fill the available element
+                this.perform_render();
+                break;
+            case 'resize':
+                this.autosizeFigure();
+                break
+        }
+    },
+
+    autosizeFigure: function() {
+        var that = this;
+        var layout = that.model.get('_layout');
+        if (_.isNil(layout) ||
+            _.isNil(layout.width)) {
+            Plotly.Plots.resize(that.el).then(function(){
+                var layout_edit_id = that.model.get(
+                    "_last_layout_edit_id");
+                that._sendLayoutDelta(layout_edit_id);
+            });
+        }
+    },
+
+    /**
+     * Purge Plotly.js data structures from the notebook output display
+     * element when the view is destroyed
+     */
+    destroy: function() {
+        Plotly.purge(this.el);
+    },
+
+    /**
+     * Return the figure's _fullData array merged with its data array
+     *
+     * The merge ensures that for any properties that el._fullData and
+     * el.data have in common, we return the version from el.data
+     *
+     * Named colorscales are one example of why this is needed. The el.data
+     * array will hold named colorscale strings (e.g. 'Viridis'), while the
+     * el._fullData array will hold the actual colorscale array. e.g.
+     *
+     *      el.data[0].marker.colorscale == 'Viridis' but
+     *      el._fullData[0].marker.colorscale = [[..., ...], ...]
+     *
+     * Performing the merge allows our FigureModel to retain the 'Viridis'
+     * string, rather than having it overridded by the colorscale array.
+     *
+     */
+    getFullData: function () {
+        return _.mergeWith({}, this.el._fullData, this.el.data,
+            fullMergeCustomizer)
+    },
+
+    /**
+     * Return the figure's _fullLayout object merged with its layout object
+     *
+     * See getFullData documentation for discussion of why the merge is
+     * necessary
+     */
+    getFullLayout: function () {
+        return _.mergeWith({}, this.el._fullLayout, this.el.layout,
+            fullMergeCustomizer);
+    },
+
+    /**
+     * Build Points data structure from data supplied by the plotly_click,
+     * plotly_hover, or plotly_select events
+     * @param {Object} data
+     * @returns {null|Points}
+     */
+    buildPointsObject: function (data) {
+
+        var pointsObject;
+        if (data.hasOwnProperty("points")) {
+            // Most cartesian plots
+            var pointObjects = data["points"];
+            var numPoints = pointObjects.length;
+            pointsObject = {
+                "trace_indexes": new Array(numPoints),
+                "point_indexes": new Array(numPoints),
+                "xs": new Array(numPoints),
+                "ys": new Array(numPoints)};
+
+
+                for (var p = 0; p < numPoints; p++) {
+                pointsObject["trace_indexes"][p] =
+                    pointObjects[p]["curveNumber"];
+                pointsObject["point_indexes"][p] =
+                    pointObjects[p]["pointNumber"];
+                pointsObject["xs"][p] =
+                    pointObjects[p]["x"];
+                pointsObject["ys"][p] =
+                    pointObjects[p]["y"];
+            }
+
+            // Add z if present
+            var hasZ = pointObjects[0] !==
+                undefined && pointObjects[0].hasOwnProperty("z");
+            if (hasZ) {
+                pointsObject["zs"] = new Array(numPoints);
+                for (p = 0; p < numPoints; p++) {
+                    pointsObject["zs"][p] = pointObjects[p]["z"];
+                }
+            }
+
+            return pointsObject
+        } else {
+            return null
+        }
+    },
+
+    /**
+     * Build InputDeviceState data structure from data supplied by the
+     * plotly_click, plotly_hover, or plotly_select events
+     * @param {Object} data
+     * @returns {null|InputDeviceState}
+     */
+    buildInputDeviceStateObject: function (data) {
+        var event = data["event"];
+        if (event === undefined) {
+            return null;
+        } else {
+            /** @type {InputDeviceState} */
+            var inputDeviceState = {
+                // Keyboard modifiers
+                "alt": event["altKey"],
+                "ctrl": event["ctrlKey"],
+                "meta": event["metaKey"],
+                "shift": event["shiftKey"],
+
+                // Mouse buttons
+                "button": event["button"],
+                "buttons": event["buttons"]
+            };
+            return inputDeviceState
+        }
+    },
+
+    /**
+     * Build Selector data structure from data supplied by the
+     * plotly_select event
+     * @param data
+     * @returns {null|Selector}
+     */
+    buildSelectorObject: function(data) {
+
+        var selectorObject;
+
+        if (data.hasOwnProperty("range")) {
+            // Box selection
+            selectorObject = {
+                type: "box",
+                selector_state: {
+                    xrange: data["range"]["x"],
+                    yrange: data["range"]["y"]
+                }
+            };
+        } else if (data.hasOwnProperty("lassoPoints")) {
+            // Lasso selection
+            selectorObject = {
+                type: "lasso",
+                selector_state: {
+                    xs: data["lassoPoints"]["x"],
+                    ys: data["lassoPoints"]["y"]
+                }
+            };
+        } else {
+            selectorObject = null;
+        }
+        return selectorObject
+    },
+
+    /**
+     * Handle ploty_restyle events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_restyle: function (data) {
+
+        if (data === null || data === undefined) {
+            // No data to report to the Python side
+            return
+        }
+
+        if (data[0] && data[0].hasOwnProperty("_doNotReportToPy")) {
+            // Restyle originated on the Python side
+            return
+        }
+
+        // Unpack data
+        var styleData = data[0];
+        var styleTraces = data[1];
+
+        // Construct restyle message to send to the Python side
+        /** @type {Js2PyRestyleMsg} */
+        var restyleMsg = {
+            style_data: styleData,
+            style_traces: styleTraces,
+            source_view_id: this.viewID
+        };
+
+        this.model.set("_js2py_restyle", restyleMsg);
+        this.touch();
+    },
+
+    /**
+     * Handle plotly_relayout events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_relayout: function (data) {
+
+        if (data === null || data === undefined) {
+            // No data to report to the Python side
+            return
+        }
+
+        if (data.hasOwnProperty("_doNotReportToPy")) {
+            // Relayout originated on the Python side
+            return
+        }
+
+        /** @type {Js2PyRelayoutMsg} */
+        var relayoutMsg = {
+            relayout_data: data,
+            source_view_id: this.viewID
+        };
+
+        this.model.set("_js2py_relayout", relayoutMsg);
+        this.touch();
+    },
+
+    /**
+     * Handle plotly_update events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_update: function (data) {
+
+        if (data === null || data === undefined) {
+            // No data to report to the Python side
+            return
+        }
+
+        if (data["data"] &&
+            data["data"][0].hasOwnProperty("_doNotReportToPy")) {
+            // Update originated on the Python side
+            return
+        }
+
+        /** @type {Js2PyUpdateMsg} */
+        var updateMsg = {
+            style_data: data["data"][0],
+            style_traces: data["data"][1],
+            layout_data: data["layout"],
+            source_view_id: this.viewID
+        };
+
+        // Log message
+        this.model.set("_js2py_update", updateMsg);
+        this.touch();
+    },
+
+    /**
+     * Handle plotly_click events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_click: function (data) {
+        this._send_points_callback_message(data, "plotly_click");
+    },
+
+    /**
+     * Handle plotly_hover events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_hover: function (data) {
+        this._send_points_callback_message(data, "plotly_hover");
+    },
+
+    /**
+     * Handle plotly_unhover events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_unhover: function (data) {
+        this._send_points_callback_message(data, "plotly_unhover");
+    },
+
+    /**
+     * Handle plotly_selected events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_selected: function (data) {
+        this._send_points_callback_message(data, "plotly_selected");
+    },
+    
+    /**
+     * Handle plotly_deselect events emitted by the Plotly.js library
+     * @param data
+     */
+    handle_plotly_deselect: function (data) {
+        data = {
+            points : []
+        }
+        this._send_points_callback_message(data, "plotly_deselect");
+    },    
+
+    /**
+     * Build and send a points callback message to the Python side
+     *
+     * @param {Object} data
+     *  data object as provided by the plotly_click, plotly_hover,
+     *  plotly_unhover, or plotly_selected events
+     * @param {String} event_type
+     *  Name of the triggering event. One of 'plotly_click',
+     *  'plotly_hover', 'plotly_unhover', or 'plotly_selected'
+     * @private
+     */
+    _send_points_callback_message: function (data, event_type) {
+        if (data === null || data === undefined) {
+            // No data to report to the Python side
+            return;
+        }
+
+        /** @type {Js2PyPointsCallbackMsg} */
+        var pointsMsg = {
+            event_type: event_type,
+            points: this.buildPointsObject(data),
+            device_state: this.buildInputDeviceStateObject(data),
+            selector: this.buildSelectorObject(data)
+        };
+
+        if (pointsMsg["points"] !== null &&
+            pointsMsg["points"] !== undefined) {
+
+            this.model.set("_js2py_pointsCallback", pointsMsg);
+            this.touch();
+        }
+    },
+
+    /**
+     * Stub for future handling of plotly_doubleclick
+     * @param data
+     */
+    handle_plotly_doubleclick: function (data) {},
+
+
+    /**
+     * Handle Plotly.addTraces request
+     */
+    do_addTraces: function () {
+
+        /** @type {Py2JsAddTracesMsg} */
+        var msgData = this.model.get("_py2js_addTraces");
+
+        if (msgData !== null) {
+
+            // Save off original number of traces
+            var prevNumTraces = this.el.data.length;
+
+            var that = this;
+            Plotly.addTraces(this.el, msgData.trace_data).then(function () {
+
+                // ### Send trace deltas ###
+                that._sendTraceDeltas(msgData.trace_edit_id);
+
+                // ### Send layout delta ###
+                var layout_edit_id = msgData.layout_edit_id;
+                that._sendLayoutDelta(layout_edit_id);
+            });
+        }
+    },
+
+    /**
+     * Handle Plotly.deleteTraces request
+     */
+    do_deleteTraces: function () {
+
+        /** @type {Py2JsDeleteTracesMsg} */
+        var msgData = this.model.get("_py2js_deleteTraces");
+
+        if (msgData  !== null){
+            var delete_inds = msgData.delete_inds;
+            var that = this;
+            Plotly.deleteTraces(this.el, delete_inds).then(function () {
+
+                // ### Send trace deltas ###
+                var trace_edit_id = msgData.trace_edit_id;
+                that._sendTraceDeltas(trace_edit_id);
+
+                // ### Send layout delta ###
+                var layout_edit_id = msgData.layout_edit_id;
+                that._sendLayoutDelta(layout_edit_id);
+            });
+        }
+    },
+
+    /**
+     * Handle Plotly.moveTraces request
+     */
+    do_moveTraces: function () {
+
+        /** @type {Py2JsMoveTracesMsg} */
+        var msgData = this.model.get("_py2js_moveTraces");
+
+        if (msgData !== null){
+            // Unpack message
+            var currentInds = msgData.current_trace_inds;
+            var newInds = msgData.new_trace_inds;
+
+            // Check if the new trace indexes are actually different than
+            // the current indexes
+            var inds_equal = _.isEqual(currentInds, newInds);
+
+            if (!inds_equal) {
+                Plotly.moveTraces(this.el, currentInds, newInds)
+            }
+        }
+    },
+
+    /**
+     * Handle Plotly.restyle request
+     */
+    do_restyle: function () {
+
+        /** @type {Py2JsRestyleMsg} */
+        var msgData = this.model.get("_py2js_restyle");
+        if (msgData !== null) {
+            var restyleData = msgData.restyle_data;
+            var traceIndexes = this.model._normalize_trace_indexes(
+                msgData.restyle_traces);
+
+            restyleData["_doNotReportToPy"] = true;
+            Plotly.restyle(this.el, restyleData, traceIndexes);
+
+            // ### Send trace deltas ###
+            // We create an array of deltas corresponding to the restyled
+            // traces.
+            this._sendTraceDeltas(msgData.trace_edit_id);
+
+            // ### Send layout delta ###
+            var layout_edit_id = msgData.layout_edit_id;
+            this._sendLayoutDelta(layout_edit_id);
+        }
+    },
+
+    /**
+     * Handle Plotly.relayout request
+     */
+    do_relayout: function () {
+
+        /** @type {Py2JsRelayoutMsg} */
+        var msgData = this.model.get("_py2js_relayout");
+        if (msgData !== null) {
+            if (msgData.source_view_id !== this.viewID) {
+                var relayoutData = msgData.relayout_data;
+                relayoutData["_doNotReportToPy"] = true;
+                Plotly.relayout(this.el, msgData.relayout_data);
+            }
+
+            // ### Send layout delta ###
+            var layout_edit_id = msgData.layout_edit_id;
+            this._sendLayoutDelta(layout_edit_id);
+        }
+    },
+
+    /**
+     * Handle Plotly.update request
+     */
+    do_update: function () {
+
+        /** @type {Py2JsUpdateMsg} */
+        var msgData = this.model.get("_py2js_update");
+
+        if (msgData !== null) {
+            var style = msgData.style_data || {};
+            var layout = msgData.layout_data || {};
+            var traceIndexes = this.model._normalize_trace_indexes(
+                msgData.style_traces);
+
+            style["_doNotReportToPy"] = true;
+                Plotly.update(this.el, style, layout, traceIndexes);
+
+            // ### Send trace deltas ###
+            // We create an array of deltas corresponding to the updated
+            // traces.
+            this._sendTraceDeltas(msgData.trace_edit_id);
+
+            // ### Send layout delta ###
+            var layout_edit_id = msgData.layout_edit_id;
+            this._sendLayoutDelta(layout_edit_id);
+        }
+    },
+
+    /**
+     * Handle Plotly.animate request
+     */
+    do_animate: function() {
+
+        /** @type {Py2JsAnimateMsg} */
+        var msgData = this.model.get("_py2js_animate");
+
+        if (msgData !== null) {
+
+            // Unpack params
+            // var animationData = msgData[0];
+            var animationOpts = msgData.animation_opts;
+
+            var styles = msgData.style_data;
+            var layout = msgData.layout_data;
+            var traceIndexes = this.model._normalize_trace_indexes(
+                msgData.style_traces);
+
+            var animationData = {
+                data: styles,
+                layout: layout,
+                traces: traceIndexes
+            };
+
+            animationData["_doNotReportToPy"] = true;
+            var that = this;
+
+            Plotly.animate(this.el, animationData, animationOpts).then(
+                function () {
+
+                    // ### Send trace deltas ###
+                    // We create an array of deltas corresponding to the
+                    // animated traces.
+                    that._sendTraceDeltas(msgData.trace_edit_id);
+
+                    // ### Send layout delta ###
+                    var layout_edit_id = msgData.layout_edit_id;
+                    that._sendLayoutDelta(layout_edit_id);
+                });
+
+        }
+    },
+
+    /**
+     * Construct layout delta object and send layoutDelta message to the
+     * Python side
+     *
+     * @param layout_edit_id
+     *  Edit ID of message that triggered the creation of the layout delta
+     * @private
+     */
+    _sendLayoutDelta: function(layout_edit_id) {
+        // ### Handle layout delta ###
+        var layout_delta = createDeltaObject(
+            this.getFullLayout(),
+            this.model.get("_layout"));
+
+        /** @type{Js2PyLayoutDeltaMsg} */
+        var layoutDeltaMsg = {
+            layout_delta: layout_delta,
+            layout_edit_id: layout_edit_id};
+
+        this.model.set("_js2py_layoutDelta", layoutDeltaMsg);
+        this.touch();
+    },
+
+    /**
+     * Construct trace deltas array for the requested trace indexes and
+     * send traceDeltas message to the Python side
+     *  Array of indexes of traces for which to compute deltas
+     * @param trace_edit_id
+     *  Edit ID of message that triggered the creation of trace deltas
+     * @private
+     */
+    _sendTraceDeltas: function (trace_edit_id) {
+
+        var trace_data = this.model.get("_data");
+        var traceIndexes = _.range(trace_data.length);
+        var trace_deltas = new Array(traceIndexes.length);
+
+        var fullData = this.getFullData();
+        for (var i = 0; i < traceIndexes.length; i++) {
+            var traceInd = traceIndexes[i];
+            trace_deltas[i] = createDeltaObject(
+                fullData[traceInd], trace_data[traceInd]);
+        }
+
+        /** @type{Js2PyTraceDeltasMsg} */
+        var traceDeltasMsg = {
+            trace_deltas: trace_deltas,
+            trace_edit_id: trace_edit_id};
+
+        this.model.set("_js2py_traceDeltas", traceDeltasMsg);
+        this.touch();
+    }
+});
+
+// Serialization
+/**
+ * Create a mapping from numpy dtype strings to corresponding typed array
+ * constructors
+ */
+var numpy_dtype_to_typedarray_type = {
+    int8: Int8Array,
+    int16: Int16Array,
+    int32: Int32Array,
+    uint8: Uint8Array,
+    uint16: Uint16Array,
+    uint32: Uint32Array,
+    float32: Float32Array,
+    float64: Float64Array
+};
+
+function serializeTypedArray(v) {
+    var numpyType;
+    if (v instanceof Int8Array) {
+        numpyType = 'int8';
+    } else if (v instanceof Int16Array) {
+        numpyType = 'int16';
+    } else if (v instanceof Int32Array) {
+        numpyType = 'int32';
+    } else if (v instanceof Uint8Array) {
+        numpyType = 'uint8';
+    } else if (v instanceof Uint16Array) {
+        numpyType = 'uint16';
+    } else if (v instanceof Uint32Array) {
+        numpyType = 'uint32';
+    } else if (v instanceof Float32Array) {
+        numpyType = 'float32';
+    } else if (v instanceof Float64Array) {
+        numpyType = 'float64';
+    } else {
+        // Don't understand it, return as is
+        return v;
+    }
+    var res = {
+        dtype: numpyType,
+        shape: [v.length],
+        value: v.buffer
+    };
+    return res
+}
+
+/**
+ * ipywidget JavaScript -> Python serializer
+ */
+function js2py_serializer(v, widgetManager) {
+    var res;
+
+    if (_.isTypedArray(v)) {
+        res = serializeTypedArray(v);
+    } else if (Array.isArray(v)) {
+        // Serialize array elements recursively
+        res = new Array(v.length);
+        for (var i = 0; i < v.length; i++) {
+            res[i] = js2py_serializer(v[i]);
+        }
+    } else if (_.isPlainObject(v)) {
+        // Serialize object properties recursively
+        res = {};
+        for (var p in v) {
+            if (v.hasOwnProperty(p)) {
+                res[p] = js2py_serializer(v[p]);
+            }
+        }
+    } else if (v === undefined) {
+        // Translate undefined into '_undefined_' sentinal string. The
+        // Python _js_to_py deserializer will convert this into an
+        // Undefined object
+        res = "_undefined_";
+    } else {
+        // Primitive value to transfer directly
+        res = v;
+    }
+    return res
+}
+
+/**
+ * ipywidget Python -> Javascript deserializer
+ */
+function py2js_deserializer(v, widgetManager) {
+    var res;
+
+    if (Array.isArray(v)) {
+        // Deserialize array elements recursively
+        res = new Array(v.length);
+        for (var i = 0; i < v.length; i++) {
+            res[i] = py2js_deserializer(v[i]);
+        }
+    } else if (_.isPlainObject(v)) {
+        if ((_.has(v, 'value') || _.has(v, 'buffer')) &&
+            _.has(v, 'dtype') &&
+            _.has(v, 'shape')) {
+            // Deserialize special buffer/dtype/shape objects into typed arrays
+            // These objects correspond to numpy arrays on the Python side
+            //
+            // Note plotly.py<=3.1.1 called the buffer object `buffer`
+            // This was renamed `value` in 3.2 to work around a naming conflict
+            // when saving widget state to a notebook.
+            var typedarray_type = numpy_dtype_to_typedarray_type[v.dtype];
+            var buffer = _.has(v, 'value')? v.value.buffer: v.buffer.buffer;
+            res = new typedarray_type(buffer);
+        } else {
+            // Deserialize object properties recursively
+            res = {};
+            for (var p in v) {
+                if (v.hasOwnProperty(p)) {
+                    res[p] = py2js_deserializer(v[p]);
+                }
+            }
+        }
+    } else if (v === "_undefined_") {
+        // Convert the _undefined_ sentinal into undefined
+        res = undefined;
+    } else {
+        // Accept primitive value directly
+        res = v;
+    }
+    return res
+}
+
+/**
+ * Return whether the input value is a typed array
+ * @param potentialTypedArray
+ *  Value to examine
+ * @returns {boolean}
+ */
+function isTypedArray(potentialTypedArray) {
+    return ArrayBuffer.isView(potentialTypedArray) &&
+        !(potentialTypedArray instanceof DataView);
+}
+
+/**
+ * Customizer for use with lodash's mergeWith function
+ *
+ * The customizer ensures that typed arrays are not converted into standard
+ * arrays during the recursive merge
+ *
+ * See: https://lodash.com/docs/latest#mergeWith
+ */
+function fullMergeCustomizer(objValue, srcValue, key) {
+    if (key[0] === '_') {
+        // Don't recurse into private properties
+        return null
+    } else if (isTypedArray(srcValue)) {
+        // Return typed arrays directly, don't recurse inside
+        return srcValue
+    }
+}
+
+/**
+ * Reform a Plotly.relayout like operation on an input object
+ *
+ * @param {Object} parentObj
+ *  The object that the relayout operation should be applied to
+ * @param {Object} relayoutData
+ *  An relayout object as accepted by Plotly.relayout
+ *
+ *  Examples:
+ *      var d = {foo {bar [5, 10]}};
+ *      performRelayoutLike(d, {'foo.bar': [0, 1]});
+ *      d -> {foo: {bar: [0, 1]}}
+ *
+ *      var d = {foo {bar [5, 10]}};
+ *      performRelayoutLike(d, {'baz': 34});
+ *      d -> {foo: {bar: [5, 10]}, baz: 34}
+ *
+ *      var d = {foo: {bar: [5, 10]};
+ *      performRelayoutLike(d, {'foo.baz[1]': 17});
+ *      d -> {foo: {bar: [5, 17]}}
+ *
+ */
+function performRelayoutLike(parentObj, relayoutData) {
+    // Perform a relayout style operation on a given parent object
+    for (var rawKey in relayoutData) {
+        if (!relayoutData.hasOwnProperty(rawKey)) {
+            continue
+        }
+
+        // Extract value for this key
+        var relayoutVal = relayoutData[rawKey];
+
+        // Set property value
+        if (relayoutVal === null) {
+            _.unset(parentObj, rawKey);
+        } else {
+            _.set(parentObj, rawKey, relayoutVal);
+        }
+    }
+}
+
+/**
+ * Perform a Plotly.restyle like operation on an input object array
+ *
+ * @param {Array.<Object>} parentArray
+ *  The object that the restyle operation should be applied to
+ * @param {Object} restyleData
+ *  A restyle object as accepted by Plotly.restyle
+ * @param {Array.<Number>} restyleTraces
+ *  Array of indexes of the traces that the resytle operation applies to
+ *
+ *  Examples:
+ *      var d = [{foo: {bar: 1}}, {}, {}]
+ *      performRestyleLike(d, {'foo.bar': 2}, [0])
+ *      d -> [{foo: {bar: 2}}, {}, {}]
+ *
+ *      var d = [{foo: {bar: 1}}, {}, {}]
+ *      performRestyleLike(d, {'foo.bar': 2}, [0, 1, 2])
+ *      d -> [{foo: {bar: 2}}, {foo: {bar: 2}}, {foo: {bar: 2}}]
+ *
+ *      var d = [{foo: {bar: 1}}, {}, {}]
+ *      performRestyleLike(d, {'foo.bar': [2, 3, 4]}, [0, 1, 2])
+ *      d -> [{foo: {bar: 2}}, {foo: {bar: 3}}, {foo: {bar: 4}}]
+ *
+ */
+function performRestyleLike(parentArray, restyleData, restyleTraces) {
+    // Loop over the properties of restyleData
+    for (var rawKey in restyleData) {
+        if (!restyleData.hasOwnProperty(rawKey)) { continue }
+
+        // Extract value for property and normalize into a value list
+        var valArray = restyleData[rawKey];
+        if (!Array.isArray(valArray)) {
+            valArray = [valArray]
+        }
+
+        // Loop over the indexes of the traces being restyled
+        for (var i = 0; i < restyleTraces.length; i++) {
+
+            // Get trace object
+            var traceInd = restyleTraces[i];
+            var trace = parentArray[traceInd];
+
+            // Extract value for this trace
+            var singleVal = valArray[i % valArray.length];
+
+            // Set property value
+            if (singleVal === null) {
+                _.unset(trace, rawKey);
+            } else if (singleVal !== undefined){
+                _.set(trace, rawKey, singleVal);
+            }
+        }
+    }
+}
+
+/**
+ * Perform a Plotly.moveTraces like operation on an input object array
+ * @param parentArray
+ *  The object that the moveTraces operation should be applied to
+ * @param currentInds
+ *  Array of the current indexes of traces to be moved
+ * @param newInds
+ *  Array of the new indexes that traces selected by currentInds should be
+ *  moved to.
+ *
+ *  Examples:
+ *      var d = [{foo: 0}, {foo: 1}, {foo: 2}]
+ *      performMoveTracesLike(d, [0, 1], [2, 0])
+ *      d -> [{foo: 1}, {foo: 2}, {foo: 0}]
+ *
+ *      var d = [{foo: 0}, {foo: 1}, {foo: 2}]
+ *      performMoveTracesLike(d, [0, 2], [1, 2])
+ *      d -> [{foo: 1}, {foo: 0}, {foo: 2}]
+ */
+function performMoveTracesLike(parentArray, currentInds, newInds) {
+
+    // ### Remove by currentInds in reverse order ###
+    var movingTracesData = [];
+    for (var ci = currentInds.length - 1; ci >= 0; ci--) {
+        // Insert moving parentArray at beginning of the list
+        movingTracesData.splice(0, 0, parentArray[currentInds[ci]]);
+        parentArray.splice(currentInds[ci], 1);
+    }
+
+    // ### Sort newInds and movingTracesData by newInds ###
+    var newIndexSortedArrays = _(newInds).zip(movingTracesData)
+        .sortBy(0)
+        .unzip()
+        .value();
+
+    newInds = newIndexSortedArrays[0];
+    movingTracesData = newIndexSortedArrays[1];
+
+    // ### Insert by newInds in forward order ###
+    for (var ni = 0; ni < newInds.length; ni++) {
+        parentArray.splice(newInds[ni], 0, movingTracesData[ni]);
+    }
+}
+
+/**
+ * Remove nested properties from a parent object
+ * @param {Object} parentObj
+ *  Parent object from which properties or nested properties should be removed
+ * @param {Array.<Array.<Number|String>>} keyPaths
+ *  Array of key paths for properties that should be removed. Each key path
+ *  is an array of properties names or array indexes that reference a
+ *  property to be removed
+ *
+ *  Examples:
+ *      var d = {foo: [{bar: 0}, {bar: 1}], baz: 32}
+ *      performRemoveProps(d, ['baz'])
+ *      d -> {foo: [{bar: 0}, {bar: 1}]}
+ *
+ *      var d = {foo: [{bar: 0}, {bar: 1}], baz: 32}
+ *      performRemoveProps(d, ['foo[1].bar', 'baz'])
+ *      d -> {foo: [{bar: 0}, {}]}
+ *
+ */
+function performRemoveProps(parentObj, keyPaths) {
+
+    for(var i=0; i < keyPaths.length; i++) {
+        var keyPath = keyPaths[i];
+        _.unset(parentObj, keyPath);
+    }
+}
+
+
+/**
+ * Return object that contains all properties in fullObj that are not
+ * identical to the corresponding properties in removeObj
+ *
+ * Properties of fullObj and removeObj may be objects or arrays of objects
+ *
+ * Returned object is a deep clone of the properties of the input objects
+ *
+ * @param {Object} fullObj
+ * @param {Object} removeObj
+ *
+ *  Examples:
+ *      var fullD = {foo: [{bar: 0}, {bar: 1}], baz: 32}
+ *      var removeD = {baz: 32}
+ *      createDeltaObject(fullD, removeD)
+ *          -> {foo: [{bar: 0}, {bar: 1}]}
+ *
+ *      var fullD = {foo: [{bar: 0}, {bar: 1}], baz: 32}
+ *      var removeD = {baz: 45}
+ *      createDeltaObject(fullD, removeD)
+ *          -> {foo: [{bar: 0}, {bar: 1}], baz: 32}
+ *
+ *      var fullD = {foo: [{bar: 0}, {bar: 1}], baz: 32}
+ *      var removeD = {foo: [{bar: 0}, {bar: 1}]}
+ *      createDeltaObject(fullD, removeD)
+ *          -> {baz: 32}
+ *
+ */
+function createDeltaObject(fullObj, removeObj) {
+
+    // Initialize result as object or array
+    var res;
+    if(Array.isArray(fullObj)) {
+        res = new Array(fullObj.length);
+    } else {
+        res = {};
+    }
+
+    // Initialize removeObj to empty object if not specified
+    if (removeObj === null || removeObj === undefined) {
+        removeObj = {};
+    }
+
+    // Iterate over object properties or array indices
+    for (var p in fullObj) {
+        if (p[0] !== "_" &&  // Don't consider private properties
+            fullObj.hasOwnProperty(p) &&  // Exclude parent properties
+            fullObj[p] !== null  // Exclude cases where fullObj doesn't
+                                 // have the property
+        ) {
+            // Compute object equality
+            var props_equal;
+            props_equal = _.isEqual(fullObj[p], removeObj[p]);
+
+            // Perform recursive comparison if props are not equal
+            if (!props_equal || p === "uid") {  // Let uids through
+
+                // property has non-null value in fullObj that doesn't
+                // match the value in removeObj
+                var fullVal = fullObj[p];
+                if (removeObj.hasOwnProperty(p) &&
+                    typeof fullVal === "object") {
+                    // Recurse over object properties
+                    if(Array.isArray(fullVal)) {
+
+                        if (fullVal.length > 0 &&
+                            typeof(fullVal[0]) === "object") {
+                            // We have an object array
+                            res[p] = new Array(fullVal.length);
+                            for (var i = 0; i < fullVal.length; i++) {
+                                if (!Array.isArray(removeObj[p]) ||
+                                    removeObj[p].length <= i) {
+
+                                    res[p][i] = fullVal[i]
+                                } else {
+                                    res[p][i] = createDeltaObject(fullVal[i],
+                                        removeObj[p][i]);
+                                }
+                            }
+                        } else {
+                            // We have a primitive array or typed array
+                            res[p] = fullVal;
+                        }
+                    } else { // object
+                        var full_obj = createDeltaObject(fullVal,
+                            removeObj[p]);
+                        if (Object.keys(full_obj).length > 0) {
+                            // new object is not empty
+                            res[p] = full_obj;
+                        }
+                    }
+                } else if (typeof fullVal === "object" &&
+                    !Array.isArray(fullVal)) {
+                    // Return 'clone' of fullVal
+                    // We don't use a standard clone method so that we keep
+                    // the special case handling of this method
+                    res[p] = createDeltaObject(fullVal, {});
+
+                } else if (fullVal !== undefined &&
+                    typeof fullVal !== 'function') {
+                    // No recursion necessary, Just keep value from fullObj.
+                    // But skip values with function type
+                    res[p] = fullVal;
+                }
+            }
+        }
+    }
+    return res
+}
+
+module.exports = {
+    FigureView : FigureView,
+    FigureModel: FigureModel
+};
+
+
+/***/ }),
+/* 21 */
+/***/ (function(module, exports) {
+
+module.exports = __WEBPACK_EXTERNAL_MODULE_21__;
+
+/***/ }),
+/* 22 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(global, module) {var __WEBPACK_AMD_DEFINE_RESULT__;/**
+ * @license
+ * Lodash <https://lodash.com/>
+ * Copyright JS Foundation and other contributors <https://js.foundation/>
+ * Released under MIT license <https://lodash.com/license>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ */
+;(function() {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /** Used as the semantic version number. */
+  var VERSION = '4.17.5';
+
+  /** Used as the size to enable large array optimizations. */
+  var LARGE_ARRAY_SIZE = 200;
+
+  /** Error message constants. */
+  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
+      FUNC_ERROR_TEXT = 'Expected a function';
+
+  /** Used to stand-in for `undefined` hash values. */
+  var HASH_UNDEFINED = '__lodash_hash_undefined__';
+
+  /** Used as the maximum memoize cache size. */
+  var MAX_MEMOIZE_SIZE = 500;
+
+  /** Used as the internal argument placeholder. */
+  var PLACEHOLDER = '__lodash_placeholder__';
+
+  /** Used to compose bitmasks for cloning. */
+  var CLONE_DEEP_FLAG = 1,
+      CLONE_FLAT_FLAG = 2,
+      CLONE_SYMBOLS_FLAG = 4;
+
+  /** Used to compose bitmasks for value comparisons. */
+  var COMPARE_PARTIAL_FLAG = 1,
+      COMPARE_UNORDERED_FLAG = 2;
+
+  /** Used to compose bitmasks for function metadata. */
+  var WRAP_BIND_FLAG = 1,
+      WRAP_BIND_KEY_FLAG = 2,
+      WRAP_CURRY_BOUND_FLAG = 4,
+      WRAP_CURRY_FLAG = 8,
+      WRAP_CURRY_RIGHT_FLAG = 16,
+      WRAP_PARTIAL_FLAG = 32,
+      WRAP_PARTIAL_RIGHT_FLAG = 64,
+      WRAP_ARY_FLAG = 128,
+      WRAP_REARG_FLAG = 256,
+      WRAP_FLIP_FLAG = 512;
+
+  /** Used as default options for `_.truncate`. */
+  var DEFAULT_TRUNC_LENGTH = 30,
+      DEFAULT_TRUNC_OMISSION = '...';
+
+  /** Used to detect hot functions by number of calls within a span of milliseconds. */
+  var HOT_COUNT = 800,
+      HOT_SPAN = 16;
+
+  /** Used to indicate the type of lazy iteratees. */
+  var LAZY_FILTER_FLAG = 1,
+      LAZY_MAP_FLAG = 2,
+      LAZY_WHILE_FLAG = 3;
+
+  /** Used as references for various `Number` constants. */
+  var INFINITY = 1 / 0,
+      MAX_SAFE_INTEGER = 9007199254740991,
+      MAX_INTEGER = 1.7976931348623157e+308,
+      NAN = 0 / 0;
+
+  /** Used as references for the maximum length and index of an array. */
+  var MAX_ARRAY_LENGTH = 4294967295,
+      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
+      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
+
+  /** Used to associate wrap methods with their bit flags. */
+  var wrapFlags = [
+    ['ary', WRAP_ARY_FLAG],
+    ['bind', WRAP_BIND_FLAG],
+    ['bindKey', WRAP_BIND_KEY_FLAG],
+    ['curry', WRAP_CURRY_FLAG],
+    ['curryRight', WRAP_CURRY_RIGHT_FLAG],
+    ['flip', WRAP_FLIP_FLAG],
+    ['partial', WRAP_PARTIAL_FLAG],
+    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
+    ['rearg', WRAP_REARG_FLAG]
+  ];
+
+  /** `Object#toString` result references. */
+  var argsTag = '[object Arguments]',
+      arrayTag = '[object Array]',
+      asyncTag = '[object AsyncFunction]',
+      boolTag = '[object Boolean]',
+      dateTag = '[object Date]',
+      domExcTag = '[object DOMException]',
+      errorTag = '[object Error]',
+      funcTag = '[object Function]',
+      genTag = '[object GeneratorFunction]',
+      mapTag = '[object Map]',
+      numberTag = '[object Number]',
+      nullTag = '[object Null]',
+      objectTag = '[object Object]',
+      promiseTag = '[object Promise]',
+      proxyTag = '[object Proxy]',
+      regexpTag = '[object RegExp]',
+      setTag = '[object Set]',
+      stringTag = '[object String]',
+      symbolTag = '[object Symbol]',
+      undefinedTag = '[object Undefined]',
+      weakMapTag = '[object WeakMap]',
+      weakSetTag = '[object WeakSet]';
+
+  var arrayBufferTag = '[object ArrayBuffer]',
+      dataViewTag = '[object DataView]',
+      float32Tag = '[object Float32Array]',
+      float64Tag = '[object Float64Array]',
+      int8Tag = '[object Int8Array]',
+      int16Tag = '[object Int16Array]',
+      int32Tag = '[object Int32Array]',
+      uint8Tag = '[object Uint8Array]',
+      uint8ClampedTag = '[object Uint8ClampedArray]',
+      uint16Tag = '[object Uint16Array]',
+      uint32Tag = '[object Uint32Array]';
+
+  /** Used to match empty string literals in compiled template source. */
+  var reEmptyStringLeading = /\b__p \+= '';/g,
+      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
+      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
+
+  /** Used to match HTML entities and HTML characters. */
+  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
+      reUnescapedHtml = /[&<>"']/g,
+      reHasEscapedHtml = RegExp(reEscapedHtml.source),
+      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
+
+  /** Used to match template delimiters. */
+  var reEscape = /<%-([\s\S]+?)%>/g,
+      reEvaluate = /<%([\s\S]+?)%>/g,
+      reInterpolate = /<%=([\s\S]+?)%>/g;
+
+  /** Used to match property names within property paths. */
+  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
+      reIsPlainProp = /^\w*$/,
+      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;
+
+  /**
+   * Used to match `RegExp`
+   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
+   */
+  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
+      reHasRegExpChar = RegExp(reRegExpChar.source);
+
+  /** Used to match leading and trailing whitespace. */
+  var reTrim = /^\s+|\s+$/g,
+      reTrimStart = /^\s+/,
+      reTrimEnd = /\s+$/;
+
+  /** Used to match wrap detail comments. */
+  var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
+      reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
+      reSplitDetails = /,? & /;
+
+  /** Used to match words composed of alphanumeric characters. */
+  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;
+
+  /** Used to match backslashes in property paths. */
+  var reEscapeChar = /\\(\\)?/g;
+
+  /**
+   * Used to match
+   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
+   */
+  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
+
+  /** Used to match `RegExp` flags from their coerced string values. */
+  var reFlags = /\w*$/;
+
+  /** Used to detect bad signed hexadecimal string values. */
+  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
+
+  /** Used to detect binary string values. */
+  var reIsBinary = /^0b[01]+$/i;
+
+  /** Used to detect host constructors (Safari). */
+  var reIsHostCtor = /^\[object .+?Constructor\]$/;
+
+  /** Used to detect octal string values. */
+  var reIsOctal = /^0o[0-7]+$/i;
+
+  /** Used to detect unsigned integer values. */
+  var reIsUint = /^(?:0|[1-9]\d*)$/;
+
+  /** Used to match Latin Unicode letters (excluding mathematical operators). */
+  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
+
+  /** Used to ensure capturing order of template delimiters. */
+  var reNoMatch = /($^)/;
+
+  /** Used to match unescaped characters in compiled string literals. */
+  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
+
+  /** Used to compose unicode character classes. */
+  var rsAstralRange = '\\ud800-\\udfff',
+      rsComboMarksRange = '\\u0300-\\u036f',
+      reComboHalfMarksRange = '\\ufe20-\\ufe2f',
+      rsComboSymbolsRange = '\\u20d0-\\u20ff',
+      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
+      rsDingbatRange = '\\u2700-\\u27bf',
+      rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
+      rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
+      rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
+      rsPunctuationRange = '\\u2000-\\u206f',
+      rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
+      rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
+      rsVarRange = '\\ufe0e\\ufe0f',
+      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
+
+  /** Used to compose unicode capture groups. */
+  var rsApos = "['\u2019]",
+      rsAstral = '[' + rsAstralRange + ']',
+      rsBreak = '[' + rsBreakRange + ']',
+      rsCombo = '[' + rsComboRange + ']',
+      rsDigits = '\\d+',
+      rsDingbat = '[' + rsDingbatRange + ']',
+      rsLower = '[' + rsLowerRange + ']',
+      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
+      rsFitz = '\\ud83c[\\udffb-\\udfff]',
+      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
+      rsNonAstral = '[^' + rsAstralRange + ']',
+      rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
+      rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
+      rsUpper = '[' + rsUpperRange + ']',
+      rsZWJ = '\\u200d';
+
+  /** Used to compose unicode regexes. */
+  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
+      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
+      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
+      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
+      reOptMod = rsModifier + '?',
+      rsOptVar = '[' + rsVarRange + ']?',
+      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
+      rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
+      rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
+      rsSeq = rsOptVar + reOptMod + rsOptJoin,
+      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
+      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
+
+  /** Used to match apostrophes. */
+  var reApos = RegExp(rsApos, 'g');
+
+  /**
+   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
+   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
+   */
+  var reComboMark = RegExp(rsCombo, 'g');
+
+  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
+  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
+
+  /** Used to match complex or compound words. */
+  var reUnicodeWord = RegExp([
+    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
+    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
+    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
+    rsUpper + '+' + rsOptContrUpper,
+    rsOrdUpper,
+    rsOrdLower,
+    rsDigits,
+    rsEmoji
+  ].join('|'), 'g');
+
+  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
+  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');
+
+  /** Used to detect strings that need a more robust regexp to match words. */
+  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;
+
+  /** Used to assign default `context` object properties. */
+  var contextProps = [
+    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
+    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
+    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
+    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
+    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
+  ];
+
+  /** Used to make template sourceURLs easier to identify. */
+  var templateCounter = -1;
+
+  /** Used to identify `toStringTag` values of typed arrays. */
+  var typedArrayTags = {};
+  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
+  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
+  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
+  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
+  typedArrayTags[uint32Tag] = true;
+  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
+  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
+  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
+  typedArrayTags[errorTag] = typedArrayTags[funcTag] =
+  typedArrayTags[mapTag] = typedArrayTags[numberTag] =
+  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
+  typedArrayTags[setTag] = typedArrayTags[stringTag] =
+  typedArrayTags[weakMapTag] = false;
+
+  /** Used to identify `toStringTag` values supported by `_.clone`. */
+  var cloneableTags = {};
+  cloneableTags[argsTag] = cloneableTags[arrayTag] =
+  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
+  cloneableTags[boolTag] = cloneableTags[dateTag] =
+  cloneableTags[float32Tag] = cloneableTags[float64Tag] =
+  cloneableTags[int8Tag] = cloneableTags[int16Tag] =
+  cloneableTags[int32Tag] = cloneableTags[mapTag] =
+  cloneableTags[numberTag] = cloneableTags[objectTag] =
+  cloneableTags[regexpTag] = cloneableTags[setTag] =
+  cloneableTags[stringTag] = cloneableTags[symbolTag] =
+  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
+  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
+  cloneableTags[errorTag] = cloneableTags[funcTag] =
+  cloneableTags[weakMapTag] = false;
+
+  /** Used to map Latin Unicode letters to basic Latin letters. */
+  var deburredLetters = {
+    // Latin-1 Supplement block.
+    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
+    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
+    '\xc7': 'C',  '\xe7': 'c',
+    '\xd0': 'D',  '\xf0': 'd',
+    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
+    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
+    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
+    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
+    '\xd1': 'N',  '\xf1': 'n',
+    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
+    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
+    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
+    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
+    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
+    '\xc6': 'Ae', '\xe6': 'ae',
+    '\xde': 'Th', '\xfe': 'th',
+    '\xdf': 'ss',
+    // Latin Extended-A block.
+    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
+    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
+    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
+    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
+    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
+    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
+    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
+    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
+    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
+    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
+    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
+    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
+    '\u0134': 'J',  '\u0135': 'j',
+    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
+    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
+    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
+    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
+    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
+    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
+    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
+    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
+    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
+    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
+    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
+    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
+    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
+    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
+    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
+    '\u0174': 'W',  '\u0175': 'w',
+    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
+    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
+    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
+    '\u0132': 'IJ', '\u0133': 'ij',
+    '\u0152': 'Oe', '\u0153': 'oe',
+    '\u0149': "'n", '\u017f': 's'
+  };
+
+  /** Used to map characters to HTML entities. */
+  var htmlEscapes = {
+    '&': '&amp;',
+    '<': '&lt;',
+    '>': '&gt;',
+    '"': '&quot;',
+    "'": '&#39;'
+  };
+
+  /** Used to map HTML entities to characters. */
+  var htmlUnescapes = {
+    '&amp;': '&',
+    '&lt;': '<',
+    '&gt;': '>',
+    '&quot;': '"',
+    '&#39;': "'"
+  };
+
+  /** Used to escape characters for inclusion in compiled string literals. */
+  var stringEscapes = {
+    '\\': '\\',
+    "'": "'",
+    '\n': 'n',
+    '\r': 'r',
+    '\u2028': 'u2028',
+    '\u2029': 'u2029'
+  };
+
+  /** Built-in method references without a dependency on `root`. */
+  var freeParseFloat = parseFloat,
+      freeParseInt = parseInt;
+
+  /** Detect free variable `global` from Node.js. */
+  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
+
+  /** Detect free variable `self`. */
+  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
+
+  /** Used as a reference to the global object. */
+  var root = freeGlobal || freeSelf || Function('return this')();
+
+  /** Detect free variable `exports`. */
+  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
+
+  /** Detect free variable `module`. */
+  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
+
+  /** Detect the popular CommonJS extension `module.exports`. */
+  var moduleExports = freeModule && freeModule.exports === freeExports;
+
+  /** Detect free variable `process` from Node.js. */
+  var freeProcess = moduleExports && freeGlobal.process;
+
+  /** Used to access faster Node.js helpers. */
+  var nodeUtil = (function() {
+    try {
+      return freeProcess && freeProcess.binding && freeProcess.binding('util');
+    } catch (e) {}
+  }());
+
+  /* Node.js helper references. */
+  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
+      nodeIsDate = nodeUtil && nodeUtil.isDate,
+      nodeIsMap = nodeUtil && nodeUtil.isMap,
+      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
+      nodeIsSet = nodeUtil && nodeUtil.isSet,
+      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * A faster alternative to `Function#apply`, this function invokes `func`
+   * with the `this` binding of `thisArg` and the arguments of `args`.
+   *
+   * @private
+   * @param {Function} func The function to invoke.
+   * @param {*} thisArg The `this` binding of `func`.
+   * @param {Array} args The arguments to invoke `func` with.
+   * @returns {*} Returns the result of `func`.
+   */
+  function apply(func, thisArg, args) {
+    switch (args.length) {
+      case 0: return func.call(thisArg);
+      case 1: return func.call(thisArg, args[0]);
+      case 2: return func.call(thisArg, args[0], args[1]);
+      case 3: return func.call(thisArg, args[0], args[1], args[2]);
+    }
+    return func.apply(thisArg, args);
+  }
+
+  /**
+   * A specialized version of `baseAggregator` for arrays.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} setter The function to set `accumulator` values.
+   * @param {Function} iteratee The iteratee to transform keys.
+   * @param {Object} accumulator The initial aggregated object.
+   * @returns {Function} Returns `accumulator`.
+   */
+  function arrayAggregator(array, setter, iteratee, accumulator) {
+    var index = -1,
+        length = array == null ? 0 : array.length;
+
+    while (++index < length) {
+      var value = array[index];
+      setter(accumulator, value, iteratee(value), array);
+    }
+    return accumulator;
+  }
+
+  /**
+   * A specialized version of `_.forEach` for arrays without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @returns {Array} Returns `array`.
+   */
+  function arrayEach(array, iteratee) {
+    var index = -1,
+        length = array == null ? 0 : array.length;
+
+    while (++index < length) {
+      if (iteratee(array[index], index, array) === false) {
+        break;
+      }
+    }
+    return array;
+  }
+
+  /**
+   * A specialized version of `_.forEachRight` for arrays without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @returns {Array} Returns `array`.
+   */
+  function arrayEachRight(array, iteratee) {
+    var length = array == null ? 0 : array.length;
+
+    while (length--) {
+      if (iteratee(array[length], length, array) === false) {
+        break;
+      }
+    }
+    return array;
+  }
+
+  /**
+   * A specialized version of `_.every` for arrays without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} predicate The function invoked per iteration.
+   * @returns {boolean} Returns `true` if all elements pass the predicate check,
+   *  else `false`.
+   */
+  function arrayEvery(array, predicate) {
+    var index = -1,
+        length = array == null ? 0 : array.length;
+
+    while (++index < length) {
+      if (!predicate(array[index], index, array)) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  /**
+   * A specialized version of `_.filter` for arrays without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} predicate The function invoked per iteration.
+   * @returns {Array} Returns the new filtered array.
+   */
+  function arrayFilter(array, predicate) {
+    var index = -1,
+        length = array == null ? 0 : array.length,
+        resIndex = 0,
+        result = [];
+
+    while (++index < length) {
+      var value = array[index];
+      if (predicate(value, index, array)) {
+        result[resIndex++] = value;
+      }
+    }
+    return result;
+  }
+
+  /**
+   * A specialized version of `_.includes` for arrays without support for
+   * specifying an index to search from.
+   *
+   * @private
+   * @param {Array} [array] The array to inspect.
+   * @param {*} target The value to search for.
+   * @returns {boolean} Returns `true` if `target` is found, else `false`.
+   */
+  function arrayIncludes(array, value) {
+    var length = array == null ? 0 : array.length;
+    return !!length && baseIndexOf(array, value, 0) > -1;
+  }
+
+  /**
+   * This function is like `arrayIncludes` except that it accepts a comparator.
+   *
+   * @private
+   * @param {Array} [array] The array to inspect.
+   * @param {*} target The value to search for.
+   * @param {Function} comparator The comparator invoked per element.
+   * @returns {boolean} Returns `true` if `target` is found, else `false`.
+   */
+  function arrayIncludesWith(array, value, comparator) {
+    var index = -1,
+        length = array == null ? 0 : array.length;
+
+    while (++index < length) {
+      if (comparator(value, array[index])) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * A specialized version of `_.map` for arrays without support for iteratee
+   * shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @returns {Array} Returns the new mapped array.
+   */
+  function arrayMap(array, iteratee) {
+    var index = -1,
+        length = array == null ? 0 : array.length,
+        result = Array(length);
+
+    while (++index < length) {
+      result[index] = iteratee(array[index], index, array);
+    }
+    return result;
+  }
+
+  /**
+   * Appends the elements of `values` to `array`.
+   *
+   * @private
+   * @param {Array} array The array to modify.
+   * @param {Array} values The values to append.
+   * @returns {Array} Returns `array`.
+   */
+  function arrayPush(array, values) {
+    var index = -1,
+        length = values.length,
+        offset = array.length;
+
+    while (++index < length) {
+      array[offset + index] = values[index];
+    }
+    return array;
+  }
+
+  /**
+   * A specialized version of `_.reduce` for arrays without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @param {*} [accumulator] The initial value.
+   * @param {boolean} [initAccum] Specify using the first element of `array` as
+   *  the initial value.
+   * @returns {*} Returns the accumulated value.
+   */
+  function arrayReduce(array, iteratee, accumulator, initAccum) {
+    var index = -1,
+        length = array == null ? 0 : array.length;
+
+    if (initAccum && length) {
+      accumulator = array[++index];
+    }
+    while (++index < length) {
+      accumulator = iteratee(accumulator, array[index], index, array);
+    }
+    return accumulator;
+  }
+
+  /**
+   * A specialized version of `_.reduceRight` for arrays without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @param {*} [accumulator] The initial value.
+   * @param {boolean} [initAccum] Specify using the last element of `array` as
+   *  the initial value.
+   * @returns {*} Returns the accumulated value.
+   */
+  function arrayReduceRight(array, iteratee, accumulator, initAccum) {
+    var length = array == null ? 0 : array.length;
+    if (initAccum && length) {
+      accumulator = array[--length];
+    }
+    while (length--) {
+      accumulator = iteratee(accumulator, array[length], length, array);
+    }
+    return accumulator;
+  }
+
+  /**
+   * A specialized version of `_.some` for arrays without support for iteratee
+   * shorthands.
+   *
+   * @private
+   * @param {Array} [array] The array to iterate over.
+   * @param {Function} predicate The function invoked per iteration.
+   * @returns {boolean} Returns `true` if any element passes the predicate check,
+   *  else `false`.
+   */
+  function arraySome(array, predicate) {
+    var index = -1,
+        length = array == null ? 0 : array.length;
+
+    while (++index < length) {
+      if (predicate(array[index], index, array)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Gets the size of an ASCII `string`.
+   *
+   * @private
+   * @param {string} string The string inspect.
+   * @returns {number} Returns the string size.
+   */
+  var asciiSize = baseProperty('length');
+
+  /**
+   * Converts an ASCII `string` to an array.
+   *
+   * @private
+   * @param {string} string The string to convert.
+   * @returns {Array} Returns the converted array.
+   */
+  function asciiToArray(string) {
+    return string.split('');
+  }
+
+  /**
+   * Splits an ASCII `string` into an array of its words.
+   *
+   * @private
+   * @param {string} The string to inspect.
+   * @returns {Array} Returns the words of `string`.
+   */
+  function asciiWords(string) {
+    return string.match(reAsciiWord) || [];
+  }
+
+  /**
+   * The base implementation of methods like `_.findKey` and `_.findLastKey`,
+   * without support for iteratee shorthands, which iterates over `collection`
+   * using `eachFunc`.
+   *
+   * @private
+   * @param {Array|Object} collection The collection to inspect.
+   * @param {Function} predicate The function invoked per iteration.
+   * @param {Function} eachFunc The function to iterate over `collection`.
+   * @returns {*} Returns the found element or its key, else `undefined`.
+   */
+  function baseFindKey(collection, predicate, eachFunc) {
+    var result;
+    eachFunc(collection, function(value, key, collection) {
+      if (predicate(value, key, collection)) {
+        result = key;
+        return false;
+      }
+    });
+    return result;
+  }
+
+  /**
+   * The base implementation of `_.findIndex` and `_.findLastIndex` without
+   * support for iteratee shorthands.
+   *
+   * @private
+   * @param {Array} array The array to inspect.
+   * @param {Function} predicate The function invoked per iteration.
+   * @param {number} fromIndex The index to search from.
+   * @param {boolean} [fromRight] Specify iterating from right to left.
+   * @returns {number} Returns the index of the matched value, else `-1`.
+   */
+  function baseFindIndex(array, predicate, fromIndex, fromRight) {
+    var length = array.length,
+        index = fromIndex + (fromRight ? 1 : -1);
+
+    while ((fromRight ? index-- : ++index < length)) {
+      if (predicate(array[index], index, array)) {
+        return index;
+      }
+    }
+    return -1;
+  }
+
+  /**
+   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
+   *
+   * @private
+   * @param {Array} array The array to inspect.
+   * @param {*} value The value to search for.
+   * @param {number} fromIndex The index to search from.
+   * @returns {number} Returns the index of the matched value, else `-1`.
+   */
+  function baseIndexOf(array, value, fromIndex) {
+    return value === value
+      ? strictIndexOf(array, value, fromIndex)
+      : baseFindIndex(array, baseIsNaN, fromIndex);
+  }
+
+  /**
+   * This function is like `baseIndexOf` except that it accepts a comparator.
+   *
+   * @private
+   * @param {Array} array The array to inspect.
+   * @param {*} value The value to search for.
+   * @param {number} fromIndex The index to search from.
+   * @param {Function} comparator The comparator invoked per element.
+   * @returns {number} Returns the index of the matched value, else `-1`.
+   */
+  function baseIndexOfWith(array, value, fromIndex, comparator) {
+    var index = fromIndex - 1,
+        length = array.length;
+
+    while (++index < length) {
+      if (comparator(array[index], value)) {
+        return index;
+      }
+    }
+    return -1;
+  }
+
+  /**
+   * The base implementation of `_.isNaN` without support for number objects.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
+   */
+  function baseIsNaN(value) {
+    return value !== value;
+  }
+
+  /**
+   * The base implementation of `_.mean` and `_.meanBy` without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} array The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @returns {number} Returns the mean.
+   */
+  function baseMean(array, iteratee) {
+    var length = array == null ? 0 : array.length;
+    return length ? (baseSum(array, iteratee) / length) : NAN;
+  }
+
+  /**
+   * The base implementation of `_.property` without support for deep paths.
+   *
+   * @private
+   * @param {string} key The key of the property to get.
+   * @returns {Function} Returns the new accessor function.
+   */
+  function baseProperty(key) {
+    return function(object) {
+      return object == null ? undefined : object[key];
+    };
+  }
+
+  /**
+   * The base implementation of `_.propertyOf` without support for deep paths.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @returns {Function} Returns the new accessor function.
+   */
+  function basePropertyOf(object) {
+    return function(key) {
+      return object == null ? undefined : object[key];
+    };
+  }
+
+  /**
+   * The base implementation of `_.reduce` and `_.reduceRight`, without support
+   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
+   *
+   * @private
+   * @param {Array|Object} collection The collection to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @param {*} accumulator The initial value.
+   * @param {boolean} initAccum Specify using the first or last element of
+   *  `collection` as the initial value.
+   * @param {Function} eachFunc The function to iterate over `collection`.
+   * @returns {*} Returns the accumulated value.
+   */
+  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
+    eachFunc(collection, function(value, index, collection) {
+      accumulator = initAccum
+        ? (initAccum = false, value)
+        : iteratee(accumulator, value, index, collection);
+    });
+    return accumulator;
+  }
+
+  /**
+   * The base implementation of `_.sortBy` which uses `comparer` to define the
+   * sort order of `array` and replaces criteria objects with their corresponding
+   * values.
+   *
+   * @private
+   * @param {Array} array The array to sort.
+   * @param {Function} comparer The function to define sort order.
+   * @returns {Array} Returns `array`.
+   */
+  function baseSortBy(array, comparer) {
+    var length = array.length;
+
+    array.sort(comparer);
+    while (length--) {
+      array[length] = array[length].value;
+    }
+    return array;
+  }
+
+  /**
+   * The base implementation of `_.sum` and `_.sumBy` without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} array The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @returns {number} Returns the sum.
+   */
+  function baseSum(array, iteratee) {
+    var result,
+        index = -1,
+        length = array.length;
+
+    while (++index < length) {
+      var current = iteratee(array[index]);
+      if (current !== undefined) {
+        result = result === undefined ? current : (result + current);
+      }
+    }
+    return result;
+  }
+
+  /**
+   * The base implementation of `_.times` without support for iteratee shorthands
+   * or max array length checks.
+   *
+   * @private
+   * @param {number} n The number of times to invoke `iteratee`.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @returns {Array} Returns the array of results.
+   */
+  function baseTimes(n, iteratee) {
+    var index = -1,
+        result = Array(n);
+
+    while (++index < n) {
+      result[index] = iteratee(index);
+    }
+    return result;
+  }
+
+  /**
+   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
+   * of key-value pairs for `object` corresponding to the property names of `props`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @param {Array} props The property names to get values for.
+   * @returns {Object} Returns the key-value pairs.
+   */
+  function baseToPairs(object, props) {
+    return arrayMap(props, function(key) {
+      return [key, object[key]];
+    });
+  }
+
+  /**
+   * The base implementation of `_.unary` without support for storing metadata.
+   *
+   * @private
+   * @param {Function} func The function to cap arguments for.
+   * @returns {Function} Returns the new capped function.
+   */
+  function baseUnary(func) {
+    return function(value) {
+      return func(value);
+    };
+  }
+
+  /**
+   * The base implementation of `_.values` and `_.valuesIn` which creates an
+   * array of `object` property values corresponding to the property names
+   * of `props`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @param {Array} props The property names to get values for.
+   * @returns {Object} Returns the array of property values.
+   */
+  function baseValues(object, props) {
+    return arrayMap(props, function(key) {
+      return object[key];
+    });
+  }
+
+  /**
+   * Checks if a `cache` value for `key` exists.
+   *
+   * @private
+   * @param {Object} cache The cache to query.
+   * @param {string} key The key of the entry to check.
+   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+   */
+  function cacheHas(cache, key) {
+    return cache.has(key);
+  }
+
+  /**
+   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
+   * that is not found in the character symbols.
+   *
+   * @private
+   * @param {Array} strSymbols The string symbols to inspect.
+   * @param {Array} chrSymbols The character symbols to find.
+   * @returns {number} Returns the index of the first unmatched string symbol.
+   */
+  function charsStartIndex(strSymbols, chrSymbols) {
+    var index = -1,
+        length = strSymbols.length;
+
+    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
+    return index;
+  }
+
+  /**
+   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
+   * that is not found in the character symbols.
+   *
+   * @private
+   * @param {Array} strSymbols The string symbols to inspect.
+   * @param {Array} chrSymbols The character symbols to find.
+   * @returns {number} Returns the index of the last unmatched string symbol.
+   */
+  function charsEndIndex(strSymbols, chrSymbols) {
+    var index = strSymbols.length;
+
+    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
+    return index;
+  }
+
+  /**
+   * Gets the number of `placeholder` occurrences in `array`.
+   *
+   * @private
+   * @param {Array} array The array to inspect.
+   * @param {*} placeholder The placeholder to search for.
+   * @returns {number} Returns the placeholder count.
+   */
+  function countHolders(array, placeholder) {
+    var length = array.length,
+        result = 0;
+
+    while (length--) {
+      if (array[length] === placeholder) {
+        ++result;
+      }
+    }
+    return result;
+  }
+
+  /**
+   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
+   * letters to basic Latin letters.
+   *
+   * @private
+   * @param {string} letter The matched letter to deburr.
+   * @returns {string} Returns the deburred letter.
+   */
+  var deburrLetter = basePropertyOf(deburredLetters);
+
+  /**
+   * Used by `_.escape` to convert characters to HTML entities.
+   *
+   * @private
+   * @param {string} chr The matched character to escape.
+   * @returns {string} Returns the escaped character.
+   */
+  var escapeHtmlChar = basePropertyOf(htmlEscapes);
+
+  /**
+   * Used by `_.template` to escape characters for inclusion in compiled string literals.
+   *
+   * @private
+   * @param {string} chr The matched character to escape.
+   * @returns {string} Returns the escaped character.
+   */
+  function escapeStringChar(chr) {
+    return '\\' + stringEscapes[chr];
+  }
+
+  /**
+   * Gets the value at `key` of `object`.
+   *
+   * @private
+   * @param {Object} [object] The object to query.
+   * @param {string} key The key of the property to get.
+   * @returns {*} Returns the property value.
+   */
+  function getValue(object, key) {
+    return object == null ? undefined : object[key];
+  }
+
+  /**
+   * Checks if `string` contains Unicode symbols.
+   *
+   * @private
+   * @param {string} string The string to inspect.
+   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
+   */
+  function hasUnicode(string) {
+    return reHasUnicode.test(string);
+  }
+
+  /**
+   * Checks if `string` contains a word composed of Unicode symbols.
+   *
+   * @private
+   * @param {string} string The string to inspect.
+   * @returns {boolean} Returns `true` if a word is found, else `false`.
+   */
+  function hasUnicodeWord(string) {
+    return reHasUnicodeWord.test(string);
+  }
+
+  /**
+   * Converts `iterator` to an array.
+   *
+   * @private
+   * @param {Object} iterator The iterator to convert.
+   * @returns {Array} Returns the converted array.
+   */
+  function iteratorToArray(iterator) {
+    var data,
+        result = [];
+
+    while (!(data = iterator.next()).done) {
+      result.push(data.value);
+    }
+    return result;
+  }
+
+  /**
+   * Converts `map` to its key-value pairs.
+   *
+   * @private
+   * @param {Object} map The map to convert.
+   * @returns {Array} Returns the key-value pairs.
+   */
+  function mapToArray(map) {
+    var index = -1,
+        result = Array(map.size);
+
+    map.forEach(function(value, key) {
+      result[++index] = [key, value];
+    });
+    return result;
+  }
+
+  /**
+   * Creates a unary function that invokes `func` with its argument transformed.
+   *
+   * @private
+   * @param {Function} func The function to wrap.
+   * @param {Function} transform The argument transform.
+   * @returns {Function} Returns the new function.
+   */
+  function overArg(func, transform) {
+    return function(arg) {
+      return func(transform(arg));
+    };
+  }
+
+  /**
+   * Replaces all `placeholder` elements in `array` with an internal placeholder
+   * and returns an array of their indexes.
+   *
+   * @private
+   * @param {Array} array The array to modify.
+   * @param {*} placeholder The placeholder to replace.
+   * @returns {Array} Returns the new array of placeholder indexes.
+   */
+  function replaceHolders(array, placeholder) {
+    var index = -1,
+        length = array.length,
+        resIndex = 0,
+        result = [];
+
+    while (++index < length) {
+      var value = array[index];
+      if (value === placeholder || value === PLACEHOLDER) {
+        array[index] = PLACEHOLDER;
+        result[resIndex++] = index;
+      }
+    }
+    return result;
+  }
+
+  /**
+   * Gets the value at `key`, unless `key` is "__proto__".
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @param {string} key The key of the property to get.
+   * @returns {*} Returns the property value.
+   */
+  function safeGet(object, key) {
+    return key == '__proto__'
+      ? undefined
+      : object[key];
+  }
+
+  /**
+   * Converts `set` to an array of its values.
+   *
+   * @private
+   * @param {Object} set The set to convert.
+   * @returns {Array} Returns the values.
+   */
+  function setToArray(set) {
+    var index = -1,
+        result = Array(set.size);
+
+    set.forEach(function(value) {
+      result[++index] = value;
+    });
+    return result;
+  }
+
+  /**
+   * Converts `set` to its value-value pairs.
+   *
+   * @private
+   * @param {Object} set The set to convert.
+   * @returns {Array} Returns the value-value pairs.
+   */
+  function setToPairs(set) {
+    var index = -1,
+        result = Array(set.size);
+
+    set.forEach(function(value) {
+      result[++index] = [value, value];
+    });
+    return result;
+  }
+
+  /**
+   * A specialized version of `_.indexOf` which performs strict equality
+   * comparisons of values, i.e. `===`.
+   *
+   * @private
+   * @param {Array} array The array to inspect.
+   * @param {*} value The value to search for.
+   * @param {number} fromIndex The index to search from.
+   * @returns {number} Returns the index of the matched value, else `-1`.
+   */
+  function strictIndexOf(array, value, fromIndex) {
+    var index = fromIndex - 1,
+        length = array.length;
+
+    while (++index < length) {
+      if (array[index] === value) {
+        return index;
+      }
+    }
+    return -1;
+  }
+
+  /**
+   * A specialized version of `_.lastIndexOf` which performs strict equality
+   * comparisons of values, i.e. `===`.
+   *
+   * @private
+   * @param {Array} array The array to inspect.
+   * @param {*} value The value to search for.
+   * @param {number} fromIndex The index to search from.
+   * @returns {number} Returns the index of the matched value, else `-1`.
+   */
+  function strictLastIndexOf(array, value, fromIndex) {
+    var index = fromIndex + 1;
+    while (index--) {
+      if (array[index] === value) {
+        return index;
+      }
+    }
+    return index;
+  }
+
+  /**
+   * Gets the number of symbols in `string`.
+   *
+   * @private
+   * @param {string} string The string to inspect.
+   * @returns {number} Returns the string size.
+   */
+  function stringSize(string) {
+    return hasUnicode(string)
+      ? unicodeSize(string)
+      : asciiSize(string);
+  }
+
+  /**
+   * Converts `string` to an array.
+   *
+   * @private
+   * @param {string} string The string to convert.
+   * @returns {Array} Returns the converted array.
+   */
+  function stringToArray(string) {
+    return hasUnicode(string)
+      ? unicodeToArray(string)
+      : asciiToArray(string);
+  }
+
+  /**
+   * Used by `_.unescape` to convert HTML entities to characters.
+   *
+   * @private
+   * @param {string} chr The matched character to unescape.
+   * @returns {string} Returns the unescaped character.
+   */
+  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);
+
+  /**
+   * Gets the size of a Unicode `string`.
+   *
+   * @private
+   * @param {string} string The string inspect.
+   * @returns {number} Returns the string size.
+   */
+  function unicodeSize(string) {
+    var result = reUnicode.lastIndex = 0;
+    while (reUnicode.test(string)) {
+      ++result;
+    }
+    return result;
+  }
+
+  /**
+   * Converts a Unicode `string` to an array.
+   *
+   * @private
+   * @param {string} string The string to convert.
+   * @returns {Array} Returns the converted array.
+   */
+  function unicodeToArray(string) {
+    return string.match(reUnicode) || [];
+  }
+
+  /**
+   * Splits a Unicode `string` into an array of its words.
+   *
+   * @private
+   * @param {string} The string to inspect.
+   * @returns {Array} Returns the words of `string`.
+   */
+  function unicodeWords(string) {
+    return string.match(reUnicodeWord) || [];
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * Create a new pristine `lodash` function using the `context` object.
+   *
+   * @static
+   * @memberOf _
+   * @since 1.1.0
+   * @category Util
+   * @param {Object} [context=root] The context object.
+   * @returns {Function} Returns a new `lodash` function.
+   * @example
+   *
+   * _.mixin({ 'foo': _.constant('foo') });
+   *
+   * var lodash = _.runInContext();
+   * lodash.mixin({ 'bar': lodash.constant('bar') });
+   *
+   * _.isFunction(_.foo);
+   * // => true
+   * _.isFunction(_.bar);
+   * // => false
+   *
+   * lodash.isFunction(lodash.foo);
+   * // => false
+   * lodash.isFunction(lodash.bar);
+   * // => true
+   *
+   * // Create a suped-up `defer` in Node.js.
+   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
+   */
+  var runInContext = (function runInContext(context) {
+    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));
+
+    /** Built-in constructor references. */
+    var Array = context.Array,
+        Date = context.Date,
+        Error = context.Error,
+        Function = context.Function,
+        Math = context.Math,
+        Object = context.Object,
+        RegExp = context.RegExp,
+        String = context.String,
+        TypeError = context.TypeError;
+
+    /** Used for built-in method references. */
+    var arrayProto = Array.prototype,
+        funcProto = Function.prototype,
+        objectProto = Object.prototype;
+
+    /** Used to detect overreaching core-js shims. */
+    var coreJsData = context['__core-js_shared__'];
+
+    /** Used to resolve the decompiled source of functions. */
+    var funcToString = funcProto.toString;
+
+    /** Used to check objects for own properties. */
+    var hasOwnProperty = objectProto.hasOwnProperty;
+
+    /** Used to generate unique IDs. */
+    var idCounter = 0;
+
+    /** Used to detect methods masquerading as native. */
+    var maskSrcKey = (function() {
+      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
+      return uid ? ('Symbol(src)_1.' + uid) : '';
+    }());
+
+    /**
+     * Used to resolve the
+     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+     * of values.
+     */
+    var nativeObjectToString = objectProto.toString;
+
+    /** Used to infer the `Object` constructor. */
+    var objectCtorString = funcToString.call(Object);
+
+    /** Used to restore the original `_` reference in `_.noConflict`. */
+    var oldDash = root._;
+
+    /** Used to detect if a method is native. */
+    var reIsNative = RegExp('^' +
+      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
+      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
+    );
+
+    /** Built-in value references. */
+    var Buffer = moduleExports ? context.Buffer : undefined,
+        Symbol = context.Symbol,
+        Uint8Array = context.Uint8Array,
+        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
+        getPrototype = overArg(Object.getPrototypeOf, Object),
+        objectCreate = Object.create,
+        propertyIsEnumerable = objectProto.propertyIsEnumerable,
+        splice = arrayProto.splice,
+        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
+        symIterator = Symbol ? Symbol.iterator : undefined,
+        symToStringTag = Symbol ? Symbol.toStringTag : undefined;
+
+    var defineProperty = (function() {
+      try {
+        var func = getNative(Object, 'defineProperty');
+        func({}, '', {});
+        return func;
+      } catch (e) {}
+    }());
+
+    /** Mocked built-ins. */
+    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
+        ctxNow = Date && Date.now !== root.Date.now && Date.now,
+        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;
+
+    /* Built-in method references for those with the same name as other `lodash` methods. */
+    var nativeCeil = Math.ceil,
+        nativeFloor = Math.floor,
+        nativeGetSymbols = Object.getOwnPropertySymbols,
+        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
+        nativeIsFinite = context.isFinite,
+        nativeJoin = arrayProto.join,
+        nativeKeys = overArg(Object.keys, Object),
+        nativeMax = Math.max,
+        nativeMin = Math.min,
+        nativeNow = Date.now,
+        nativeParseInt = context.parseInt,
+        nativeRandom = Math.random,
+        nativeReverse = arrayProto.reverse;
+
+    /* Built-in method references that are verified to be native. */
+    var DataView = getNative(context, 'DataView'),
+        Map = getNative(context, 'Map'),
+        Promise = getNative(context, 'Promise'),
+        Set = getNative(context, 'Set'),
+        WeakMap = getNative(context, 'WeakMap'),
+        nativeCreate = getNative(Object, 'create');
+
+    /** Used to store function metadata. */
+    var metaMap = WeakMap && new WeakMap;
+
+    /** Used to lookup unminified function names. */
+    var realNames = {};
+
+    /** Used to detect maps, sets, and weakmaps. */
+    var dataViewCtorString = toSource(DataView),
+        mapCtorString = toSource(Map),
+        promiseCtorString = toSource(Promise),
+        setCtorString = toSource(Set),
+        weakMapCtorString = toSource(WeakMap);
+
+    /** Used to convert symbols to primitives and strings. */
+    var symbolProto = Symbol ? Symbol.prototype : undefined,
+        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
+        symbolToString = symbolProto ? symbolProto.toString : undefined;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates a `lodash` object which wraps `value` to enable implicit method
+     * chain sequences. Methods that operate on and return arrays, collections,
+     * and functions can be chained together. Methods that retrieve a single value
+     * or may return a primitive value will automatically end the chain sequence
+     * and return the unwrapped value. Otherwise, the value must be unwrapped
+     * with `_#value`.
+     *
+     * Explicit chain sequences, which must be unwrapped with `_#value`, may be
+     * enabled using `_.chain`.
+     *
+     * The execution of chained methods is lazy, that is, it's deferred until
+     * `_#value` is implicitly or explicitly called.
+     *
+     * Lazy evaluation allows several methods to support shortcut fusion.
+     * Shortcut fusion is an optimization to merge iteratee calls; this avoids
+     * the creation of intermediate arrays and can greatly reduce the number of
+     * iteratee executions. Sections of a chain sequence qualify for shortcut
+     * fusion if the section is applied to an array and iteratees accept only
+     * one argument. The heuristic for whether a section qualifies for shortcut
+     * fusion is subject to change.
+     *
+     * Chaining is supported in custom builds as long as the `_#value` method is
+     * directly or indirectly included in the build.
+     *
+     * In addition to lodash methods, wrappers have `Array` and `String` methods.
+     *
+     * The wrapper `Array` methods are:
+     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
+     *
+     * The wrapper `String` methods are:
+     * `replace` and `split`
+     *
+     * The wrapper methods that support shortcut fusion are:
+     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
+     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
+     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
+     *
+     * The chainable wrapper methods are:
+     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
+     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
+     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
+     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
+     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
+     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
+     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
+     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
+     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
+     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
+     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
+     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
+     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
+     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
+     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
+     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
+     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
+     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
+     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
+     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
+     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
+     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
+     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
+     * `zipObject`, `zipObjectDeep`, and `zipWith`
+     *
+     * The wrapper methods that are **not** chainable by default are:
+     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
+     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
+     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
+     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
+     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
+     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
+     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
+     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
+     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
+     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
+     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
+     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
+     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
+     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
+     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
+     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
+     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
+     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
+     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
+     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
+     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
+     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
+     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
+     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
+     * `upperFirst`, `value`, and `words`
+     *
+     * @name _
+     * @constructor
+     * @category Seq
+     * @param {*} value The value to wrap in a `lodash` instance.
+     * @returns {Object} Returns the new `lodash` wrapper instance.
+     * @example
+     *
+     * function square(n) {
+     *   return n * n;
+     * }
+     *
+     * var wrapped = _([1, 2, 3]);
+     *
+     * // Returns an unwrapped value.
+     * wrapped.reduce(_.add);
+     * // => 6
+     *
+     * // Returns a wrapped value.
+     * var squares = wrapped.map(square);
+     *
+     * _.isArray(squares);
+     * // => false
+     *
+     * _.isArray(squares.value());
+     * // => true
+     */
+    function lodash(value) {
+      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
+        if (value instanceof LodashWrapper) {
+          return value;
+        }
+        if (hasOwnProperty.call(value, '__wrapped__')) {
+          return wrapperClone(value);
+        }
+      }
+      return new LodashWrapper(value);
+    }
+
+    /**
+     * The base implementation of `_.create` without support for assigning
+     * properties to the created object.
+     *
+     * @private
+     * @param {Object} proto The object to inherit from.
+     * @returns {Object} Returns the new object.
+     */
+    var baseCreate = (function() {
+      function object() {}
+      return function(proto) {
+        if (!isObject(proto)) {
+          return {};
+        }
+        if (objectCreate) {
+          return objectCreate(proto);
+        }
+        object.prototype = proto;
+        var result = new object;
+        object.prototype = undefined;
+        return result;
+      };
+    }());
+
+    /**
+     * The function whose prototype chain sequence wrappers inherit from.
+     *
+     * @private
+     */
+    function baseLodash() {
+      // No operation performed.
+    }
+
+    /**
+     * The base constructor for creating `lodash` wrapper objects.
+     *
+     * @private
+     * @param {*} value The value to wrap.
+     * @param {boolean} [chainAll] Enable explicit method chain sequences.
+     */
+    function LodashWrapper(value, chainAll) {
+      this.__wrapped__ = value;
+      this.__actions__ = [];
+      this.__chain__ = !!chainAll;
+      this.__index__ = 0;
+      this.__values__ = undefined;
+    }
+
+    /**
+     * By default, the template delimiters used by lodash are like those in
+     * embedded Ruby (ERB) as well as ES2015 template strings. Change the
+     * following template settings to use alternative delimiters.
+     *
+     * @static
+     * @memberOf _
+     * @type {Object}
+     */
+    lodash.templateSettings = {
+
+      /**
+       * Used to detect `data` property values to be HTML-escaped.
+       *
+       * @memberOf _.templateSettings
+       * @type {RegExp}
+       */
+      'escape': reEscape,
+
+      /**
+       * Used to detect code to be evaluated.
+       *
+       * @memberOf _.templateSettings
+       * @type {RegExp}
+       */
+      'evaluate': reEvaluate,
+
+      /**
+       * Used to detect `data` property values to inject.
+       *
+       * @memberOf _.templateSettings
+       * @type {RegExp}
+       */
+      'interpolate': reInterpolate,
+
+      /**
+       * Used to reference the data object in the template text.
+       *
+       * @memberOf _.templateSettings
+       * @type {string}
+       */
+      'variable': '',
+
+      /**
+       * Used to import variables into the compiled template.
+       *
+       * @memberOf _.templateSettings
+       * @type {Object}
+       */
+      'imports': {
+
+        /**
+         * A reference to the `lodash` function.
+         *
+         * @memberOf _.templateSettings.imports
+         * @type {Function}
+         */
+        '_': lodash
+      }
+    };
+
+    // Ensure wrappers are instances of `baseLodash`.
+    lodash.prototype = baseLodash.prototype;
+    lodash.prototype.constructor = lodash;
+
+    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
+    LodashWrapper.prototype.constructor = LodashWrapper;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
+     *
+     * @private
+     * @constructor
+     * @param {*} value The value to wrap.
+     */
+    function LazyWrapper(value) {
+      this.__wrapped__ = value;
+      this.__actions__ = [];
+      this.__dir__ = 1;
+      this.__filtered__ = false;
+      this.__iteratees__ = [];
+      this.__takeCount__ = MAX_ARRAY_LENGTH;
+      this.__views__ = [];
+    }
+
+    /**
+     * Creates a clone of the lazy wrapper object.
+     *
+     * @private
+     * @name clone
+     * @memberOf LazyWrapper
+     * @returns {Object} Returns the cloned `LazyWrapper` object.
+     */
+    function lazyClone() {
+      var result = new LazyWrapper(this.__wrapped__);
+      result.__actions__ = copyArray(this.__actions__);
+      result.__dir__ = this.__dir__;
+      result.__filtered__ = this.__filtered__;
+      result.__iteratees__ = copyArray(this.__iteratees__);
+      result.__takeCount__ = this.__takeCount__;
+      result.__views__ = copyArray(this.__views__);
+      return result;
+    }
+
+    /**
+     * Reverses the direction of lazy iteration.
+     *
+     * @private
+     * @name reverse
+     * @memberOf LazyWrapper
+     * @returns {Object} Returns the new reversed `LazyWrapper` object.
+     */
+    function lazyReverse() {
+      if (this.__filtered__) {
+        var result = new LazyWrapper(this);
+        result.__dir__ = -1;
+        result.__filtered__ = true;
+      } else {
+        result = this.clone();
+        result.__dir__ *= -1;
+      }
+      return result;
+    }
+
+    /**
+     * Extracts the unwrapped value from its lazy wrapper.
+     *
+     * @private
+     * @name value
+     * @memberOf LazyWrapper
+     * @returns {*} Returns the unwrapped value.
+     */
+    function lazyValue() {
+      var array = this.__wrapped__.value(),
+          dir = this.__dir__,
+          isArr = isArray(array),
+          isRight = dir < 0,
+          arrLength = isArr ? array.length : 0,
+          view = getView(0, arrLength, this.__views__),
+          start = view.start,
+          end = view.end,
+          length = end - start,
+          index = isRight ? end : (start - 1),
+          iteratees = this.__iteratees__,
+          iterLength = iteratees.length,
+          resIndex = 0,
+          takeCount = nativeMin(length, this.__takeCount__);
+
+      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
+        return baseWrapperValue(array, this.__actions__);
+      }
+      var result = [];
+
+      outer:
+      while (length-- && resIndex < takeCount) {
+        index += dir;
+
+        var iterIndex = -1,
+            value = array[index];
+
+        while (++iterIndex < iterLength) {
+          var data = iteratees[iterIndex],
+              iteratee = data.iteratee,
+              type = data.type,
+              computed = iteratee(value);
+
+          if (type == LAZY_MAP_FLAG) {
+            value = computed;
+          } else if (!computed) {
+            if (type == LAZY_FILTER_FLAG) {
+              continue outer;
+            } else {
+              break outer;
+            }
+          }
+        }
+        result[resIndex++] = value;
+      }
+      return result;
+    }
+
+    // Ensure `LazyWrapper` is an instance of `baseLodash`.
+    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
+    LazyWrapper.prototype.constructor = LazyWrapper;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates a hash object.
+     *
+     * @private
+     * @constructor
+     * @param {Array} [entries] The key-value pairs to cache.
+     */
+    function Hash(entries) {
+      var index = -1,
+          length = entries == null ? 0 : entries.length;
+
+      this.clear();
+      while (++index < length) {
+        var entry = entries[index];
+        this.set(entry[0], entry[1]);
+      }
+    }
+
+    /**
+     * Removes all key-value entries from the hash.
+     *
+     * @private
+     * @name clear
+     * @memberOf Hash
+     */
+    function hashClear() {
+      this.__data__ = nativeCreate ? nativeCreate(null) : {};
+      this.size = 0;
+    }
+
+    /**
+     * Removes `key` and its value from the hash.
+     *
+     * @private
+     * @name delete
+     * @memberOf Hash
+     * @param {Object} hash The hash to modify.
+     * @param {string} key The key of the value to remove.
+     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+     */
+    function hashDelete(key) {
+      var result = this.has(key) && delete this.__data__[key];
+      this.size -= result ? 1 : 0;
+      return result;
+    }
+
+    /**
+     * Gets the hash value for `key`.
+     *
+     * @private
+     * @name get
+     * @memberOf Hash
+     * @param {string} key The key of the value to get.
+     * @returns {*} Returns the entry value.
+     */
+    function hashGet(key) {
+      var data = this.__data__;
+      if (nativeCreate) {
+        var result = data[key];
+        return result === HASH_UNDEFINED ? undefined : result;
+      }
+      return hasOwnProperty.call(data, key) ? data[key] : undefined;
+    }
+
+    /**
+     * Checks if a hash value for `key` exists.
+     *
+     * @private
+     * @name has
+     * @memberOf Hash
+     * @param {string} key The key of the entry to check.
+     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+     */
+    function hashHas(key) {
+      var data = this.__data__;
+      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
+    }
+
+    /**
+     * Sets the hash `key` to `value`.
+     *
+     * @private
+     * @name set
+     * @memberOf Hash
+     * @param {string} key The key of the value to set.
+     * @param {*} value The value to set.
+     * @returns {Object} Returns the hash instance.
+     */
+    function hashSet(key, value) {
+      var data = this.__data__;
+      this.size += this.has(key) ? 0 : 1;
+      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
+      return this;
+    }
+
+    // Add methods to `Hash`.
+    Hash.prototype.clear = hashClear;
+    Hash.prototype['delete'] = hashDelete;
+    Hash.prototype.get = hashGet;
+    Hash.prototype.has = hashHas;
+    Hash.prototype.set = hashSet;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates an list cache object.
+     *
+     * @private
+     * @constructor
+     * @param {Array} [entries] The key-value pairs to cache.
+     */
+    function ListCache(entries) {
+      var index = -1,
+          length = entries == null ? 0 : entries.length;
+
+      this.clear();
+      while (++index < length) {
+        var entry = entries[index];
+        this.set(entry[0], entry[1]);
+      }
+    }
+
+    /**
+     * Removes all key-value entries from the list cache.
+     *
+     * @private
+     * @name clear
+     * @memberOf ListCache
+     */
+    function listCacheClear() {
+      this.__data__ = [];
+      this.size = 0;
+    }
+
+    /**
+     * Removes `key` and its value from the list cache.
+     *
+     * @private
+     * @name delete
+     * @memberOf ListCache
+     * @param {string} key The key of the value to remove.
+     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+     */
+    function listCacheDelete(key) {
+      var data = this.__data__,
+          index = assocIndexOf(data, key);
+
+      if (index < 0) {
+        return false;
+      }
+      var lastIndex = data.length - 1;
+      if (index == lastIndex) {
+        data.pop();
+      } else {
+        splice.call(data, index, 1);
+      }
+      --this.size;
+      return true;
+    }
+
+    /**
+     * Gets the list cache value for `key`.
+     *
+     * @private
+     * @name get
+     * @memberOf ListCache
+     * @param {string} key The key of the value to get.
+     * @returns {*} Returns the entry value.
+     */
+    function listCacheGet(key) {
+      var data = this.__data__,
+          index = assocIndexOf(data, key);
+
+      return index < 0 ? undefined : data[index][1];
+    }
+
+    /**
+     * Checks if a list cache value for `key` exists.
+     *
+     * @private
+     * @name has
+     * @memberOf ListCache
+     * @param {string} key The key of the entry to check.
+     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+     */
+    function listCacheHas(key) {
+      return assocIndexOf(this.__data__, key) > -1;
+    }
+
+    /**
+     * Sets the list cache `key` to `value`.
+     *
+     * @private
+     * @name set
+     * @memberOf ListCache
+     * @param {string} key The key of the value to set.
+     * @param {*} value The value to set.
+     * @returns {Object} Returns the list cache instance.
+     */
+    function listCacheSet(key, value) {
+      var data = this.__data__,
+          index = assocIndexOf(data, key);
+
+      if (index < 0) {
+        ++this.size;
+        data.push([key, value]);
+      } else {
+        data[index][1] = value;
+      }
+      return this;
+    }
+
+    // Add methods to `ListCache`.
+    ListCache.prototype.clear = listCacheClear;
+    ListCache.prototype['delete'] = listCacheDelete;
+    ListCache.prototype.get = listCacheGet;
+    ListCache.prototype.has = listCacheHas;
+    ListCache.prototype.set = listCacheSet;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates a map cache object to store key-value pairs.
+     *
+     * @private
+     * @constructor
+     * @param {Array} [entries] The key-value pairs to cache.
+     */
+    function MapCache(entries) {
+      var index = -1,
+          length = entries == null ? 0 : entries.length;
+
+      this.clear();
+      while (++index < length) {
+        var entry = entries[index];
+        this.set(entry[0], entry[1]);
+      }
+    }
+
+    /**
+     * Removes all key-value entries from the map.
+     *
+     * @private
+     * @name clear
+     * @memberOf MapCache
+     */
+    function mapCacheClear() {
+      this.size = 0;
+      this.__data__ = {
+        'hash': new Hash,
+        'map': new (Map || ListCache),
+        'string': new Hash
+      };
+    }
+
+    /**
+     * Removes `key` and its value from the map.
+     *
+     * @private
+     * @name delete
+     * @memberOf MapCache
+     * @param {string} key The key of the value to remove.
+     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+     */
+    function mapCacheDelete(key) {
+      var result = getMapData(this, key)['delete'](key);
+      this.size -= result ? 1 : 0;
+      return result;
+    }
+
+    /**
+     * Gets the map value for `key`.
+     *
+     * @private
+     * @name get
+     * @memberOf MapCache
+     * @param {string} key The key of the value to get.
+     * @returns {*} Returns the entry value.
+     */
+    function mapCacheGet(key) {
+      return getMapData(this, key).get(key);
+    }
+
+    /**
+     * Checks if a map value for `key` exists.
+     *
+     * @private
+     * @name has
+     * @memberOf MapCache
+     * @param {string} key The key of the entry to check.
+     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+     */
+    function mapCacheHas(key) {
+      return getMapData(this, key).has(key);
+    }
+
+    /**
+     * Sets the map `key` to `value`.
+     *
+     * @private
+     * @name set
+     * @memberOf MapCache
+     * @param {string} key The key of the value to set.
+     * @param {*} value The value to set.
+     * @returns {Object} Returns the map cache instance.
+     */
+    function mapCacheSet(key, value) {
+      var data = getMapData(this, key),
+          size = data.size;
+
+      data.set(key, value);
+      this.size += data.size == size ? 0 : 1;
+      return this;
+    }
+
+    // Add methods to `MapCache`.
+    MapCache.prototype.clear = mapCacheClear;
+    MapCache.prototype['delete'] = mapCacheDelete;
+    MapCache.prototype.get = mapCacheGet;
+    MapCache.prototype.has = mapCacheHas;
+    MapCache.prototype.set = mapCacheSet;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     *
+     * Creates an array cache object to store unique values.
+     *
+     * @private
+     * @constructor
+     * @param {Array} [values] The values to cache.
+     */
+    function SetCache(values) {
+      var index = -1,
+          length = values == null ? 0 : values.length;
+
+      this.__data__ = new MapCache;
+      while (++index < length) {
+        this.add(values[index]);
+      }
+    }
+
+    /**
+     * Adds `value` to the array cache.
+     *
+     * @private
+     * @name add
+     * @memberOf SetCache
+     * @alias push
+     * @param {*} value The value to cache.
+     * @returns {Object} Returns the cache instance.
+     */
+    function setCacheAdd(value) {
+      this.__data__.set(value, HASH_UNDEFINED);
+      return this;
+    }
+
+    /**
+     * Checks if `value` is in the array cache.
+     *
+     * @private
+     * @name has
+     * @memberOf SetCache
+     * @param {*} value The value to search for.
+     * @returns {number} Returns `true` if `value` is found, else `false`.
+     */
+    function setCacheHas(value) {
+      return this.__data__.has(value);
+    }
+
+    // Add methods to `SetCache`.
+    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
+    SetCache.prototype.has = setCacheHas;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates a stack cache object to store key-value pairs.
+     *
+     * @private
+     * @constructor
+     * @param {Array} [entries] The key-value pairs to cache.
+     */
+    function Stack(entries) {
+      var data = this.__data__ = new ListCache(entries);
+      this.size = data.size;
+    }
+
+    /**
+     * Removes all key-value entries from the stack.
+     *
+     * @private
+     * @name clear
+     * @memberOf Stack
+     */
+    function stackClear() {
+      this.__data__ = new ListCache;
+      this.size = 0;
+    }
+
+    /**
+     * Removes `key` and its value from the stack.
+     *
+     * @private
+     * @name delete
+     * @memberOf Stack
+     * @param {string} key The key of the value to remove.
+     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+     */
+    function stackDelete(key) {
+      var data = this.__data__,
+          result = data['delete'](key);
+
+      this.size = data.size;
+      return result;
+    }
+
+    /**
+     * Gets the stack value for `key`.
+     *
+     * @private
+     * @name get
+     * @memberOf Stack
+     * @param {string} key The key of the value to get.
+     * @returns {*} Returns the entry value.
+     */
+    function stackGet(key) {
+      return this.__data__.get(key);
+    }
+
+    /**
+     * Checks if a stack value for `key` exists.
+     *
+     * @private
+     * @name has
+     * @memberOf Stack
+     * @param {string} key The key of the entry to check.
+     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+     */
+    function stackHas(key) {
+      return this.__data__.has(key);
+    }
+
+    /**
+     * Sets the stack `key` to `value`.
+     *
+     * @private
+     * @name set
+     * @memberOf Stack
+     * @param {string} key The key of the value to set.
+     * @param {*} value The value to set.
+     * @returns {Object} Returns the stack cache instance.
+     */
+    function stackSet(key, value) {
+      var data = this.__data__;
+      if (data instanceof ListCache) {
+        var pairs = data.__data__;
+        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
+          pairs.push([key, value]);
+          this.size = ++data.size;
+          return this;
+        }
+        data = this.__data__ = new MapCache(pairs);
+      }
+      data.set(key, value);
+      this.size = data.size;
+      return this;
+    }
+
+    // Add methods to `Stack`.
+    Stack.prototype.clear = stackClear;
+    Stack.prototype['delete'] = stackDelete;
+    Stack.prototype.get = stackGet;
+    Stack.prototype.has = stackHas;
+    Stack.prototype.set = stackSet;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates an array of the enumerable property names of the array-like `value`.
+     *
+     * @private
+     * @param {*} value The value to query.
+     * @param {boolean} inherited Specify returning inherited property names.
+     * @returns {Array} Returns the array of property names.
+     */
+    function arrayLikeKeys(value, inherited) {
+      var isArr = isArray(value),
+          isArg = !isArr && isArguments(value),
+          isBuff = !isArr && !isArg && isBuffer(value),
+          isType = !isArr && !isArg && !isBuff && isTypedArray(value),
+          skipIndexes = isArr || isArg || isBuff || isType,
+          result = skipIndexes ? baseTimes(value.length, String) : [],
+          length = result.length;
+
+      for (var key in value) {
+        if ((inherited || hasOwnProperty.call(value, key)) &&
+            !(skipIndexes && (
+               // Safari 9 has enumerable `arguments.length` in strict mode.
+               key == 'length' ||
+               // Node.js 0.10 has enumerable non-index properties on buffers.
+               (isBuff && (key == 'offset' || key == 'parent')) ||
+               // PhantomJS 2 has enumerable non-index properties on typed arrays.
+               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
+               // Skip index properties.
+               isIndex(key, length)
+            ))) {
+          result.push(key);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * A specialized version of `_.sample` for arrays.
+     *
+     * @private
+     * @param {Array} array The array to sample.
+     * @returns {*} Returns the random element.
+     */
+    function arraySample(array) {
+      var length = array.length;
+      return length ? array[baseRandom(0, length - 1)] : undefined;
+    }
+
+    /**
+     * A specialized version of `_.sampleSize` for arrays.
+     *
+     * @private
+     * @param {Array} array The array to sample.
+     * @param {number} n The number of elements to sample.
+     * @returns {Array} Returns the random elements.
+     */
+    function arraySampleSize(array, n) {
+      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
+    }
+
+    /**
+     * A specialized version of `_.shuffle` for arrays.
+     *
+     * @private
+     * @param {Array} array The array to shuffle.
+     * @returns {Array} Returns the new shuffled array.
+     */
+    function arrayShuffle(array) {
+      return shuffleSelf(copyArray(array));
+    }
+
+    /**
+     * This function is like `assignValue` except that it doesn't assign
+     * `undefined` values.
+     *
+     * @private
+     * @param {Object} object The object to modify.
+     * @param {string} key The key of the property to assign.
+     * @param {*} value The value to assign.
+     */
+    function assignMergeValue(object, key, value) {
+      if ((value !== undefined && !eq(object[key], value)) ||
+          (value === undefined && !(key in object))) {
+        baseAssignValue(object, key, value);
+      }
+    }
+
+    /**
+     * Assigns `value` to `key` of `object` if the existing value is not equivalent
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons.
+     *
+     * @private
+     * @param {Object} object The object to modify.
+     * @param {string} key The key of the property to assign.
+     * @param {*} value The value to assign.
+     */
+    function assignValue(object, key, value) {
+      var objValue = object[key];
+      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
+          (value === undefined && !(key in object))) {
+        baseAssignValue(object, key, value);
+      }
+    }
+
+    /**
+     * Gets the index at which the `key` is found in `array` of key-value pairs.
+     *
+     * @private
+     * @param {Array} array The array to inspect.
+     * @param {*} key The key to search for.
+     * @returns {number} Returns the index of the matched value, else `-1`.
+     */
+    function assocIndexOf(array, key) {
+      var length = array.length;
+      while (length--) {
+        if (eq(array[length][0], key)) {
+          return length;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * Aggregates elements of `collection` on `accumulator` with keys transformed
+     * by `iteratee` and values set by `setter`.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} setter The function to set `accumulator` values.
+     * @param {Function} iteratee The iteratee to transform keys.
+     * @param {Object} accumulator The initial aggregated object.
+     * @returns {Function} Returns `accumulator`.
+     */
+    function baseAggregator(collection, setter, iteratee, accumulator) {
+      baseEach(collection, function(value, key, collection) {
+        setter(accumulator, value, iteratee(value), collection);
+      });
+      return accumulator;
+    }
+
+    /**
+     * The base implementation of `_.assign` without support for multiple sources
+     * or `customizer` functions.
+     *
+     * @private
+     * @param {Object} object The destination object.
+     * @param {Object} source The source object.
+     * @returns {Object} Returns `object`.
+     */
+    function baseAssign(object, source) {
+      return object && copyObject(source, keys(source), object);
+    }
+
+    /**
+     * The base implementation of `_.assignIn` without support for multiple sources
+     * or `customizer` functions.
+     *
+     * @private
+     * @param {Object} object The destination object.
+     * @param {Object} source The source object.
+     * @returns {Object} Returns `object`.
+     */
+    function baseAssignIn(object, source) {
+      return object && copyObject(source, keysIn(source), object);
+    }
+
+    /**
+     * The base implementation of `assignValue` and `assignMergeValue` without
+     * value checks.
+     *
+     * @private
+     * @param {Object} object The object to modify.
+     * @param {string} key The key of the property to assign.
+     * @param {*} value The value to assign.
+     */
+    function baseAssignValue(object, key, value) {
+      if (key == '__proto__' && defineProperty) {
+        defineProperty(object, key, {
+          'configurable': true,
+          'enumerable': true,
+          'value': value,
+          'writable': true
+        });
+      } else {
+        object[key] = value;
+      }
+    }
+
+    /**
+     * The base implementation of `_.at` without support for individual paths.
+     *
+     * @private
+     * @param {Object} object The object to iterate over.
+     * @param {string[]} paths The property paths to pick.
+     * @returns {Array} Returns the picked elements.
+     */
+    function baseAt(object, paths) {
+      var index = -1,
+          length = paths.length,
+          result = Array(length),
+          skip = object == null;
+
+      while (++index < length) {
+        result[index] = skip ? undefined : get(object, paths[index]);
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.clamp` which doesn't coerce arguments.
+     *
+     * @private
+     * @param {number} number The number to clamp.
+     * @param {number} [lower] The lower bound.
+     * @param {number} upper The upper bound.
+     * @returns {number} Returns the clamped number.
+     */
+    function baseClamp(number, lower, upper) {
+      if (number === number) {
+        if (upper !== undefined) {
+          number = number <= upper ? number : upper;
+        }
+        if (lower !== undefined) {
+          number = number >= lower ? number : lower;
+        }
+      }
+      return number;
+    }
+
+    /**
+     * The base implementation of `_.clone` and `_.cloneDeep` which tracks
+     * traversed objects.
+     *
+     * @private
+     * @param {*} value The value to clone.
+     * @param {boolean} bitmask The bitmask flags.
+     *  1 - Deep clone
+     *  2 - Flatten inherited properties
+     *  4 - Clone symbols
+     * @param {Function} [customizer] The function to customize cloning.
+     * @param {string} [key] The key of `value`.
+     * @param {Object} [object] The parent object of `value`.
+     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
+     * @returns {*} Returns the cloned value.
+     */
+    function baseClone(value, bitmask, customizer, key, object, stack) {
+      var result,
+          isDeep = bitmask & CLONE_DEEP_FLAG,
+          isFlat = bitmask & CLONE_FLAT_FLAG,
+          isFull = bitmask & CLONE_SYMBOLS_FLAG;
+
+      if (customizer) {
+        result = object ? customizer(value, key, object, stack) : customizer(value);
+      }
+      if (result !== undefined) {
+        return result;
+      }
+      if (!isObject(value)) {
+        return value;
+      }
+      var isArr = isArray(value);
+      if (isArr) {
+        result = initCloneArray(value);
+        if (!isDeep) {
+          return copyArray(value, result);
+        }
+      } else {
+        var tag = getTag(value),
+            isFunc = tag == funcTag || tag == genTag;
+
+        if (isBuffer(value)) {
+          return cloneBuffer(value, isDeep);
+        }
+        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
+          result = (isFlat || isFunc) ? {} : initCloneObject(value);
+          if (!isDeep) {
+            return isFlat
+              ? copySymbolsIn(value, baseAssignIn(result, value))
+              : copySymbols(value, baseAssign(result, value));
+          }
+        } else {
+          if (!cloneableTags[tag]) {
+            return object ? value : {};
+          }
+          result = initCloneByTag(value, tag, isDeep);
+        }
+      }
+      // Check for circular references and return its corresponding clone.
+      stack || (stack = new Stack);
+      var stacked = stack.get(value);
+      if (stacked) {
+        return stacked;
+      }
+      stack.set(value, result);
+
+      if (isSet(value)) {
+        value.forEach(function(subValue) {
+          result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));
+        });
+
+        return result;
+      }
+
+      if (isMap(value)) {
+        value.forEach(function(subValue, key) {
+          result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));
+        });
+
+        return result;
+      }
+
+      var keysFunc = isFull
+        ? (isFlat ? getAllKeysIn : getAllKeys)
+        : (isFlat ? keysIn : keys);
+
+      var props = isArr ? undefined : keysFunc(value);
+      arrayEach(props || value, function(subValue, key) {
+        if (props) {
+          key = subValue;
+          subValue = value[key];
+        }
+        // Recursively populate clone (susceptible to call stack limits).
+        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
+      });
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.conforms` which doesn't clone `source`.
+     *
+     * @private
+     * @param {Object} source The object of property predicates to conform to.
+     * @returns {Function} Returns the new spec function.
+     */
+    function baseConforms(source) {
+      var props = keys(source);
+      return function(object) {
+        return baseConformsTo(object, source, props);
+      };
+    }
+
+    /**
+     * The base implementation of `_.conformsTo` which accepts `props` to check.
+     *
+     * @private
+     * @param {Object} object The object to inspect.
+     * @param {Object} source The object of property predicates to conform to.
+     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
+     */
+    function baseConformsTo(object, source, props) {
+      var length = props.length;
+      if (object == null) {
+        return !length;
+      }
+      object = Object(object);
+      while (length--) {
+        var key = props[length],
+            predicate = source[key],
+            value = object[key];
+
+        if ((value === undefined && !(key in object)) || !predicate(value)) {
+          return false;
+        }
+      }
+      return true;
+    }
+
+    /**
+     * The base implementation of `_.delay` and `_.defer` which accepts `args`
+     * to provide to `func`.
+     *
+     * @private
+     * @param {Function} func The function to delay.
+     * @param {number} wait The number of milliseconds to delay invocation.
+     * @param {Array} args The arguments to provide to `func`.
+     * @returns {number|Object} Returns the timer id or timeout object.
+     */
+    function baseDelay(func, wait, args) {
+      if (typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      return setTimeout(function() { func.apply(undefined, args); }, wait);
+    }
+
+    /**
+     * The base implementation of methods like `_.difference` without support
+     * for excluding multiple arrays or iteratee shorthands.
+     *
+     * @private
+     * @param {Array} array The array to inspect.
+     * @param {Array} values The values to exclude.
+     * @param {Function} [iteratee] The iteratee invoked per element.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new array of filtered values.
+     */
+    function baseDifference(array, values, iteratee, comparator) {
+      var index = -1,
+          includes = arrayIncludes,
+          isCommon = true,
+          length = array.length,
+          result = [],
+          valuesLength = values.length;
+
+      if (!length) {
+        return result;
+      }
+      if (iteratee) {
+        values = arrayMap(values, baseUnary(iteratee));
+      }
+      if (comparator) {
+        includes = arrayIncludesWith;
+        isCommon = false;
+      }
+      else if (values.length >= LARGE_ARRAY_SIZE) {
+        includes = cacheHas;
+        isCommon = false;
+        values = new SetCache(values);
+      }
+      outer:
+      while (++index < length) {
+        var value = array[index],
+            computed = iteratee == null ? value : iteratee(value);
+
+        value = (comparator || value !== 0) ? value : 0;
+        if (isCommon && computed === computed) {
+          var valuesIndex = valuesLength;
+          while (valuesIndex--) {
+            if (values[valuesIndex] === computed) {
+              continue outer;
+            }
+          }
+          result.push(value);
+        }
+        else if (!includes(values, computed, comparator)) {
+          result.push(value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.forEach` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} iteratee The function invoked per iteration.
+     * @returns {Array|Object} Returns `collection`.
+     */
+    var baseEach = createBaseEach(baseForOwn);
+
+    /**
+     * The base implementation of `_.forEachRight` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} iteratee The function invoked per iteration.
+     * @returns {Array|Object} Returns `collection`.
+     */
+    var baseEachRight = createBaseEach(baseForOwnRight, true);
+
+    /**
+     * The base implementation of `_.every` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} predicate The function invoked per iteration.
+     * @returns {boolean} Returns `true` if all elements pass the predicate check,
+     *  else `false`
+     */
+    function baseEvery(collection, predicate) {
+      var result = true;
+      baseEach(collection, function(value, index, collection) {
+        result = !!predicate(value, index, collection);
+        return result;
+      });
+      return result;
+    }
+
+    /**
+     * The base implementation of methods like `_.max` and `_.min` which accepts a
+     * `comparator` to determine the extremum value.
+     *
+     * @private
+     * @param {Array} array The array to iterate over.
+     * @param {Function} iteratee The iteratee invoked per iteration.
+     * @param {Function} comparator The comparator used to compare values.
+     * @returns {*} Returns the extremum value.
+     */
+    function baseExtremum(array, iteratee, comparator) {
+      var index = -1,
+          length = array.length;
+
+      while (++index < length) {
+        var value = array[index],
+            current = iteratee(value);
+
+        if (current != null && (computed === undefined
+              ? (current === current && !isSymbol(current))
+              : comparator(current, computed)
+            )) {
+          var computed = current,
+              result = value;
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.fill` without an iteratee call guard.
+     *
+     * @private
+     * @param {Array} array The array to fill.
+     * @param {*} value The value to fill `array` with.
+     * @param {number} [start=0] The start position.
+     * @param {number} [end=array.length] The end position.
+     * @returns {Array} Returns `array`.
+     */
+    function baseFill(array, value, start, end) {
+      var length = array.length;
+
+      start = toInteger(start);
+      if (start < 0) {
+        start = -start > length ? 0 : (length + start);
+      }
+      end = (end === undefined || end > length) ? length : toInteger(end);
+      if (end < 0) {
+        end += length;
+      }
+      end = start > end ? 0 : toLength(end);
+      while (start < end) {
+        array[start++] = value;
+      }
+      return array;
+    }
+
+    /**
+     * The base implementation of `_.filter` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} predicate The function invoked per iteration.
+     * @returns {Array} Returns the new filtered array.
+     */
+    function baseFilter(collection, predicate) {
+      var result = [];
+      baseEach(collection, function(value, index, collection) {
+        if (predicate(value, index, collection)) {
+          result.push(value);
+        }
+      });
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.flatten` with support for restricting flattening.
+     *
+     * @private
+     * @param {Array} array The array to flatten.
+     * @param {number} depth The maximum recursion depth.
+     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
+     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
+     * @param {Array} [result=[]] The initial result value.
+     * @returns {Array} Returns the new flattened array.
+     */
+    function baseFlatten(array, depth, predicate, isStrict, result) {
+      var index = -1,
+          length = array.length;
+
+      predicate || (predicate = isFlattenable);
+      result || (result = []);
+
+      while (++index < length) {
+        var value = array[index];
+        if (depth > 0 && predicate(value)) {
+          if (depth > 1) {
+            // Recursively flatten arrays (susceptible to call stack limits).
+            baseFlatten(value, depth - 1, predicate, isStrict, result);
+          } else {
+            arrayPush(result, value);
+          }
+        } else if (!isStrict) {
+          result[result.length] = value;
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `baseForOwn` which iterates over `object`
+     * properties returned by `keysFunc` and invokes `iteratee` for each property.
+     * Iteratee functions may exit iteration early by explicitly returning `false`.
+     *
+     * @private
+     * @param {Object} object The object to iterate over.
+     * @param {Function} iteratee The function invoked per iteration.
+     * @param {Function} keysFunc The function to get the keys of `object`.
+     * @returns {Object} Returns `object`.
+     */
+    var baseFor = createBaseFor();
+
+    /**
+     * This function is like `baseFor` except that it iterates over properties
+     * in the opposite order.
+     *
+     * @private
+     * @param {Object} object The object to iterate over.
+     * @param {Function} iteratee The function invoked per iteration.
+     * @param {Function} keysFunc The function to get the keys of `object`.
+     * @returns {Object} Returns `object`.
+     */
+    var baseForRight = createBaseFor(true);
+
+    /**
+     * The base implementation of `_.forOwn` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Object} object The object to iterate over.
+     * @param {Function} iteratee The function invoked per iteration.
+     * @returns {Object} Returns `object`.
+     */
+    function baseForOwn(object, iteratee) {
+      return object && baseFor(object, iteratee, keys);
+    }
+
+    /**
+     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Object} object The object to iterate over.
+     * @param {Function} iteratee The function invoked per iteration.
+     * @returns {Object} Returns `object`.
+     */
+    function baseForOwnRight(object, iteratee) {
+      return object && baseForRight(object, iteratee, keys);
+    }
+
+    /**
+     * The base implementation of `_.functions` which creates an array of
+     * `object` function property names filtered from `props`.
+     *
+     * @private
+     * @param {Object} object The object to inspect.
+     * @param {Array} props The property names to filter.
+     * @returns {Array} Returns the function names.
+     */
+    function baseFunctions(object, props) {
+      return arrayFilter(props, function(key) {
+        return isFunction(object[key]);
+      });
+    }
+
+    /**
+     * The base implementation of `_.get` without support for default values.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path of the property to get.
+     * @returns {*} Returns the resolved value.
+     */
+    function baseGet(object, path) {
+      path = castPath(path, object);
+
+      var index = 0,
+          length = path.length;
+
+      while (object != null && index < length) {
+        object = object[toKey(path[index++])];
+      }
+      return (index && index == length) ? object : undefined;
+    }
+
+    /**
+     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
+     * `keysFunc` and `symbolsFunc` to get the enumerable property names and
+     * symbols of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @param {Function} keysFunc The function to get the keys of `object`.
+     * @param {Function} symbolsFunc The function to get the symbols of `object`.
+     * @returns {Array} Returns the array of property names and symbols.
+     */
+    function baseGetAllKeys(object, keysFunc, symbolsFunc) {
+      var result = keysFunc(object);
+      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
+    }
+
+    /**
+     * The base implementation of `getTag` without fallbacks for buggy environments.
+     *
+     * @private
+     * @param {*} value The value to query.
+     * @returns {string} Returns the `toStringTag`.
+     */
+    function baseGetTag(value) {
+      if (value == null) {
+        return value === undefined ? undefinedTag : nullTag;
+      }
+      return (symToStringTag && symToStringTag in Object(value))
+        ? getRawTag(value)
+        : objectToString(value);
+    }
+
+    /**
+     * The base implementation of `_.gt` which doesn't coerce arguments.
+     *
+     * @private
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if `value` is greater than `other`,
+     *  else `false`.
+     */
+    function baseGt(value, other) {
+      return value > other;
+    }
+
+    /**
+     * The base implementation of `_.has` without support for deep paths.
+     *
+     * @private
+     * @param {Object} [object] The object to query.
+     * @param {Array|string} key The key to check.
+     * @returns {boolean} Returns `true` if `key` exists, else `false`.
+     */
+    function baseHas(object, key) {
+      return object != null && hasOwnProperty.call(object, key);
+    }
+
+    /**
+     * The base implementation of `_.hasIn` without support for deep paths.
+     *
+     * @private
+     * @param {Object} [object] The object to query.
+     * @param {Array|string} key The key to check.
+     * @returns {boolean} Returns `true` if `key` exists, else `false`.
+     */
+    function baseHasIn(object, key) {
+      return object != null && key in Object(object);
+    }
+
+    /**
+     * The base implementation of `_.inRange` which doesn't coerce arguments.
+     *
+     * @private
+     * @param {number} number The number to check.
+     * @param {number} start The start of the range.
+     * @param {number} end The end of the range.
+     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
+     */
+    function baseInRange(number, start, end) {
+      return number >= nativeMin(start, end) && number < nativeMax(start, end);
+    }
+
+    /**
+     * The base implementation of methods like `_.intersection`, without support
+     * for iteratee shorthands, that accepts an array of arrays to inspect.
+     *
+     * @private
+     * @param {Array} arrays The arrays to inspect.
+     * @param {Function} [iteratee] The iteratee invoked per element.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new array of shared values.
+     */
+    function baseIntersection(arrays, iteratee, comparator) {
+      var includes = comparator ? arrayIncludesWith : arrayIncludes,
+          length = arrays[0].length,
+          othLength = arrays.length,
+          othIndex = othLength,
+          caches = Array(othLength),
+          maxLength = Infinity,
+          result = [];
+
+      while (othIndex--) {
+        var array = arrays[othIndex];
+        if (othIndex && iteratee) {
+          array = arrayMap(array, baseUnary(iteratee));
+        }
+        maxLength = nativeMin(array.length, maxLength);
+        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
+          ? new SetCache(othIndex && array)
+          : undefined;
+      }
+      array = arrays[0];
+
+      var index = -1,
+          seen = caches[0];
+
+      outer:
+      while (++index < length && result.length < maxLength) {
+        var value = array[index],
+            computed = iteratee ? iteratee(value) : value;
+
+        value = (comparator || value !== 0) ? value : 0;
+        if (!(seen
+              ? cacheHas(seen, computed)
+              : includes(result, computed, comparator)
+            )) {
+          othIndex = othLength;
+          while (--othIndex) {
+            var cache = caches[othIndex];
+            if (!(cache
+                  ? cacheHas(cache, computed)
+                  : includes(arrays[othIndex], computed, comparator))
+                ) {
+              continue outer;
+            }
+          }
+          if (seen) {
+            seen.push(computed);
+          }
+          result.push(value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.invert` and `_.invertBy` which inverts
+     * `object` with values transformed by `iteratee` and set by `setter`.
+     *
+     * @private
+     * @param {Object} object The object to iterate over.
+     * @param {Function} setter The function to set `accumulator` values.
+     * @param {Function} iteratee The iteratee to transform values.
+     * @param {Object} accumulator The initial inverted object.
+     * @returns {Function} Returns `accumulator`.
+     */
+    function baseInverter(object, setter, iteratee, accumulator) {
+      baseForOwn(object, function(value, key, object) {
+        setter(accumulator, iteratee(value), key, object);
+      });
+      return accumulator;
+    }
+
+    /**
+     * The base implementation of `_.invoke` without support for individual
+     * method arguments.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path of the method to invoke.
+     * @param {Array} args The arguments to invoke the method with.
+     * @returns {*} Returns the result of the invoked method.
+     */
+    function baseInvoke(object, path, args) {
+      path = castPath(path, object);
+      object = parent(object, path);
+      var func = object == null ? object : object[toKey(last(path))];
+      return func == null ? undefined : apply(func, object, args);
+    }
+
+    /**
+     * The base implementation of `_.isArguments`.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+     */
+    function baseIsArguments(value) {
+      return isObjectLike(value) && baseGetTag(value) == argsTag;
+    }
+
+    /**
+     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
+     */
+    function baseIsArrayBuffer(value) {
+      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
+    }
+
+    /**
+     * The base implementation of `_.isDate` without Node.js optimizations.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
+     */
+    function baseIsDate(value) {
+      return isObjectLike(value) && baseGetTag(value) == dateTag;
+    }
+
+    /**
+     * The base implementation of `_.isEqual` which supports partial comparisons
+     * and tracks traversed objects.
+     *
+     * @private
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @param {boolean} bitmask The bitmask flags.
+     *  1 - Unordered comparison
+     *  2 - Partial comparison
+     * @param {Function} [customizer] The function to customize comparisons.
+     * @param {Object} [stack] Tracks traversed `value` and `other` objects.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     */
+    function baseIsEqual(value, other, bitmask, customizer, stack) {
+      if (value === other) {
+        return true;
+      }
+      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
+        return value !== value && other !== other;
+      }
+      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
+    }
+
+    /**
+     * A specialized version of `baseIsEqual` for arrays and objects which performs
+     * deep comparisons and tracks traversed objects enabling objects with circular
+     * references to be compared.
+     *
+     * @private
+     * @param {Object} object The object to compare.
+     * @param {Object} other The other object to compare.
+     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+     * @param {Function} customizer The function to customize comparisons.
+     * @param {Function} equalFunc The function to determine equivalents of values.
+     * @param {Object} [stack] Tracks traversed `object` and `other` objects.
+     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+     */
+    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
+      var objIsArr = isArray(object),
+          othIsArr = isArray(other),
+          objTag = objIsArr ? arrayTag : getTag(object),
+          othTag = othIsArr ? arrayTag : getTag(other);
+
+      objTag = objTag == argsTag ? objectTag : objTag;
+      othTag = othTag == argsTag ? objectTag : othTag;
+
+      var objIsObj = objTag == objectTag,
+          othIsObj = othTag == objectTag,
+          isSameTag = objTag == othTag;
+
+      if (isSameTag && isBuffer(object)) {
+        if (!isBuffer(other)) {
+          return false;
+        }
+        objIsArr = true;
+        objIsObj = false;
+      }
+      if (isSameTag && !objIsObj) {
+        stack || (stack = new Stack);
+        return (objIsArr || isTypedArray(object))
+          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
+          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
+      }
+      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
+        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
+            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
+
+        if (objIsWrapped || othIsWrapped) {
+          var objUnwrapped = objIsWrapped ? object.value() : object,
+              othUnwrapped = othIsWrapped ? other.value() : other;
+
+          stack || (stack = new Stack);
+          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
+        }
+      }
+      if (!isSameTag) {
+        return false;
+      }
+      stack || (stack = new Stack);
+      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
+    }
+
+    /**
+     * The base implementation of `_.isMap` without Node.js optimizations.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
+     */
+    function baseIsMap(value) {
+      return isObjectLike(value) && getTag(value) == mapTag;
+    }
+
+    /**
+     * The base implementation of `_.isMatch` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Object} object The object to inspect.
+     * @param {Object} source The object of property values to match.
+     * @param {Array} matchData The property names, values, and compare flags to match.
+     * @param {Function} [customizer] The function to customize comparisons.
+     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
+     */
+    function baseIsMatch(object, source, matchData, customizer) {
+      var index = matchData.length,
+          length = index,
+          noCustomizer = !customizer;
+
+      if (object == null) {
+        return !length;
+      }
+      object = Object(object);
+      while (index--) {
+        var data = matchData[index];
+        if ((noCustomizer && data[2])
+              ? data[1] !== object[data[0]]
+              : !(data[0] in object)
+            ) {
+          return false;
+        }
+      }
+      while (++index < length) {
+        data = matchData[index];
+        var key = data[0],
+            objValue = object[key],
+            srcValue = data[1];
+
+        if (noCustomizer && data[2]) {
+          if (objValue === undefined && !(key in object)) {
+            return false;
+          }
+        } else {
+          var stack = new Stack;
+          if (customizer) {
+            var result = customizer(objValue, srcValue, key, object, source, stack);
+          }
+          if (!(result === undefined
+                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
+                : result
+              )) {
+            return false;
+          }
+        }
+      }
+      return true;
+    }
+
+    /**
+     * The base implementation of `_.isNative` without bad shim checks.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a native function,
+     *  else `false`.
+     */
+    function baseIsNative(value) {
+      if (!isObject(value) || isMasked(value)) {
+        return false;
+      }
+      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
+      return pattern.test(toSource(value));
+    }
+
+    /**
+     * The base implementation of `_.isRegExp` without Node.js optimizations.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
+     */
+    function baseIsRegExp(value) {
+      return isObjectLike(value) && baseGetTag(value) == regexpTag;
+    }
+
+    /**
+     * The base implementation of `_.isSet` without Node.js optimizations.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
+     */
+    function baseIsSet(value) {
+      return isObjectLike(value) && getTag(value) == setTag;
+    }
+
+    /**
+     * The base implementation of `_.isTypedArray` without Node.js optimizations.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+     */
+    function baseIsTypedArray(value) {
+      return isObjectLike(value) &&
+        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
+    }
+
+    /**
+     * The base implementation of `_.iteratee`.
+     *
+     * @private
+     * @param {*} [value=_.identity] The value to convert to an iteratee.
+     * @returns {Function} Returns the iteratee.
+     */
+    function baseIteratee(value) {
+      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
+      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
+      if (typeof value == 'function') {
+        return value;
+      }
+      if (value == null) {
+        return identity;
+      }
+      if (typeof value == 'object') {
+        return isArray(value)
+          ? baseMatchesProperty(value[0], value[1])
+          : baseMatches(value);
+      }
+      return property(value);
+    }
+
+    /**
+     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names.
+     */
+    function baseKeys(object) {
+      if (!isPrototype(object)) {
+        return nativeKeys(object);
+      }
+      var result = [];
+      for (var key in Object(object)) {
+        if (hasOwnProperty.call(object, key) && key != 'constructor') {
+          result.push(key);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names.
+     */
+    function baseKeysIn(object) {
+      if (!isObject(object)) {
+        return nativeKeysIn(object);
+      }
+      var isProto = isPrototype(object),
+          result = [];
+
+      for (var key in object) {
+        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
+          result.push(key);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.lt` which doesn't coerce arguments.
+     *
+     * @private
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if `value` is less than `other`,
+     *  else `false`.
+     */
+    function baseLt(value, other) {
+      return value < other;
+    }
+
+    /**
+     * The base implementation of `_.map` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} iteratee The function invoked per iteration.
+     * @returns {Array} Returns the new mapped array.
+     */
+    function baseMap(collection, iteratee) {
+      var index = -1,
+          result = isArrayLike(collection) ? Array(collection.length) : [];
+
+      baseEach(collection, function(value, key, collection) {
+        result[++index] = iteratee(value, key, collection);
+      });
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.matches` which doesn't clone `source`.
+     *
+     * @private
+     * @param {Object} source The object of property values to match.
+     * @returns {Function} Returns the new spec function.
+     */
+    function baseMatches(source) {
+      var matchData = getMatchData(source);
+      if (matchData.length == 1 && matchData[0][2]) {
+        return matchesStrictComparable(matchData[0][0], matchData[0][1]);
+      }
+      return function(object) {
+        return object === source || baseIsMatch(object, source, matchData);
+      };
+    }
+
+    /**
+     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
+     *
+     * @private
+     * @param {string} path The path of the property to get.
+     * @param {*} srcValue The value to match.
+     * @returns {Function} Returns the new spec function.
+     */
+    function baseMatchesProperty(path, srcValue) {
+      if (isKey(path) && isStrictComparable(srcValue)) {
+        return matchesStrictComparable(toKey(path), srcValue);
+      }
+      return function(object) {
+        var objValue = get(object, path);
+        return (objValue === undefined && objValue === srcValue)
+          ? hasIn(object, path)
+          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
+      };
+    }
+
+    /**
+     * The base implementation of `_.merge` without support for multiple sources.
+     *
+     * @private
+     * @param {Object} object The destination object.
+     * @param {Object} source The source object.
+     * @param {number} srcIndex The index of `source`.
+     * @param {Function} [customizer] The function to customize merged values.
+     * @param {Object} [stack] Tracks traversed source values and their merged
+     *  counterparts.
+     */
+    function baseMerge(object, source, srcIndex, customizer, stack) {
+      if (object === source) {
+        return;
+      }
+      baseFor(source, function(srcValue, key) {
+        if (isObject(srcValue)) {
+          stack || (stack = new Stack);
+          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
+        }
+        else {
+          var newValue = customizer
+            ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
+            : undefined;
+
+          if (newValue === undefined) {
+            newValue = srcValue;
+          }
+          assignMergeValue(object, key, newValue);
+        }
+      }, keysIn);
+    }
+
+    /**
+     * A specialized version of `baseMerge` for arrays and objects which performs
+     * deep merges and tracks traversed objects enabling objects with circular
+     * references to be merged.
+     *
+     * @private
+     * @param {Object} object The destination object.
+     * @param {Object} source The source object.
+     * @param {string} key The key of the value to merge.
+     * @param {number} srcIndex The index of `source`.
+     * @param {Function} mergeFunc The function to merge values.
+     * @param {Function} [customizer] The function to customize assigned values.
+     * @param {Object} [stack] Tracks traversed source values and their merged
+     *  counterparts.
+     */
+    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
+      var objValue = safeGet(object, key),
+          srcValue = safeGet(source, key),
+          stacked = stack.get(srcValue);
+
+      if (stacked) {
+        assignMergeValue(object, key, stacked);
+        return;
+      }
+      var newValue = customizer
+        ? customizer(objValue, srcValue, (key + ''), object, source, stack)
+        : undefined;
+
+      var isCommon = newValue === undefined;
+
+      if (isCommon) {
+        var isArr = isArray(srcValue),
+            isBuff = !isArr && isBuffer(srcValue),
+            isTyped = !isArr && !isBuff && isTypedArray(srcValue);
+
+        newValue = srcValue;
+        if (isArr || isBuff || isTyped) {
+          if (isArray(objValue)) {
+            newValue = objValue;
+          }
+          else if (isArrayLikeObject(objValue)) {
+            newValue = copyArray(objValue);
+          }
+          else if (isBuff) {
+            isCommon = false;
+            newValue = cloneBuffer(srcValue, true);
+          }
+          else if (isTyped) {
+            isCommon = false;
+            newValue = cloneTypedArray(srcValue, true);
+          }
+          else {
+            newValue = [];
+          }
+        }
+        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
+          newValue = objValue;
+          if (isArguments(objValue)) {
+            newValue = toPlainObject(objValue);
+          }
+          else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
+            newValue = initCloneObject(srcValue);
+          }
+        }
+        else {
+          isCommon = false;
+        }
+      }
+      if (isCommon) {
+        // Recursively merge objects and arrays (susceptible to call stack limits).
+        stack.set(srcValue, newValue);
+        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
+        stack['delete'](srcValue);
+      }
+      assignMergeValue(object, key, newValue);
+    }
+
+    /**
+     * The base implementation of `_.nth` which doesn't coerce arguments.
+     *
+     * @private
+     * @param {Array} array The array to query.
+     * @param {number} n The index of the element to return.
+     * @returns {*} Returns the nth element of `array`.
+     */
+    function baseNth(array, n) {
+      var length = array.length;
+      if (!length) {
+        return;
+      }
+      n += n < 0 ? length : 0;
+      return isIndex(n, length) ? array[n] : undefined;
+    }
+
+    /**
+     * The base implementation of `_.orderBy` without param guards.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
+     * @param {string[]} orders The sort orders of `iteratees`.
+     * @returns {Array} Returns the new sorted array.
+     */
+    function baseOrderBy(collection, iteratees, orders) {
+      var index = -1;
+      iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee()));
+
+      var result = baseMap(collection, function(value, key, collection) {
+        var criteria = arrayMap(iteratees, function(iteratee) {
+          return iteratee(value);
+        });
+        return { 'criteria': criteria, 'index': ++index, 'value': value };
+      });
+
+      return baseSortBy(result, function(object, other) {
+        return compareMultiple(object, other, orders);
+      });
+    }
+
+    /**
+     * The base implementation of `_.pick` without support for individual
+     * property identifiers.
+     *
+     * @private
+     * @param {Object} object The source object.
+     * @param {string[]} paths The property paths to pick.
+     * @returns {Object} Returns the new object.
+     */
+    function basePick(object, paths) {
+      return basePickBy(object, paths, function(value, path) {
+        return hasIn(object, path);
+      });
+    }
+
+    /**
+     * The base implementation of  `_.pickBy` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Object} object The source object.
+     * @param {string[]} paths The property paths to pick.
+     * @param {Function} predicate The function invoked per property.
+     * @returns {Object} Returns the new object.
+     */
+    function basePickBy(object, paths, predicate) {
+      var index = -1,
+          length = paths.length,
+          result = {};
+
+      while (++index < length) {
+        var path = paths[index],
+            value = baseGet(object, path);
+
+        if (predicate(value, path)) {
+          baseSet(result, castPath(path, object), value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * A specialized version of `baseProperty` which supports deep paths.
+     *
+     * @private
+     * @param {Array|string} path The path of the property to get.
+     * @returns {Function} Returns the new accessor function.
+     */
+    function basePropertyDeep(path) {
+      return function(object) {
+        return baseGet(object, path);
+      };
+    }
+
+    /**
+     * The base implementation of `_.pullAllBy` without support for iteratee
+     * shorthands.
+     *
+     * @private
+     * @param {Array} array The array to modify.
+     * @param {Array} values The values to remove.
+     * @param {Function} [iteratee] The iteratee invoked per element.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns `array`.
+     */
+    function basePullAll(array, values, iteratee, comparator) {
+      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
+          index = -1,
+          length = values.length,
+          seen = array;
+
+      if (array === values) {
+        values = copyArray(values);
+      }
+      if (iteratee) {
+        seen = arrayMap(array, baseUnary(iteratee));
+      }
+      while (++index < length) {
+        var fromIndex = 0,
+            value = values[index],
+            computed = iteratee ? iteratee(value) : value;
+
+        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
+          if (seen !== array) {
+            splice.call(seen, fromIndex, 1);
+          }
+          splice.call(array, fromIndex, 1);
+        }
+      }
+      return array;
+    }
+
+    /**
+     * The base implementation of `_.pullAt` without support for individual
+     * indexes or capturing the removed elements.
+     *
+     * @private
+     * @param {Array} array The array to modify.
+     * @param {number[]} indexes The indexes of elements to remove.
+     * @returns {Array} Returns `array`.
+     */
+    function basePullAt(array, indexes) {
+      var length = array ? indexes.length : 0,
+          lastIndex = length - 1;
+
+      while (length--) {
+        var index = indexes[length];
+        if (length == lastIndex || index !== previous) {
+          var previous = index;
+          if (isIndex(index)) {
+            splice.call(array, index, 1);
+          } else {
+            baseUnset(array, index);
+          }
+        }
+      }
+      return array;
+    }
+
+    /**
+     * The base implementation of `_.random` without support for returning
+     * floating-point numbers.
+     *
+     * @private
+     * @param {number} lower The lower bound.
+     * @param {number} upper The upper bound.
+     * @returns {number} Returns the random number.
+     */
+    function baseRandom(lower, upper) {
+      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
+    }
+
+    /**
+     * The base implementation of `_.range` and `_.rangeRight` which doesn't
+     * coerce arguments.
+     *
+     * @private
+     * @param {number} start The start of the range.
+     * @param {number} end The end of the range.
+     * @param {number} step The value to increment or decrement by.
+     * @param {boolean} [fromRight] Specify iterating from right to left.
+     * @returns {Array} Returns the range of numbers.
+     */
+    function baseRange(start, end, step, fromRight) {
+      var index = -1,
+          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
+          result = Array(length);
+
+      while (length--) {
+        result[fromRight ? length : ++index] = start;
+        start += step;
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.repeat` which doesn't coerce arguments.
+     *
+     * @private
+     * @param {string} string The string to repeat.
+     * @param {number} n The number of times to repeat the string.
+     * @returns {string} Returns the repeated string.
+     */
+    function baseRepeat(string, n) {
+      var result = '';
+      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
+        return result;
+      }
+      // Leverage the exponentiation by squaring algorithm for a faster repeat.
+      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
+      do {
+        if (n % 2) {
+          result += string;
+        }
+        n = nativeFloor(n / 2);
+        if (n) {
+          string += string;
+        }
+      } while (n);
+
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.rest` which doesn't validate or coerce arguments.
+     *
+     * @private
+     * @param {Function} func The function to apply a rest parameter to.
+     * @param {number} [start=func.length-1] The start position of the rest parameter.
+     * @returns {Function} Returns the new function.
+     */
+    function baseRest(func, start) {
+      return setToString(overRest(func, start, identity), func + '');
+    }
+
+    /**
+     * The base implementation of `_.sample`.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to sample.
+     * @returns {*} Returns the random element.
+     */
+    function baseSample(collection) {
+      return arraySample(values(collection));
+    }
+
+    /**
+     * The base implementation of `_.sampleSize` without param guards.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to sample.
+     * @param {number} n The number of elements to sample.
+     * @returns {Array} Returns the random elements.
+     */
+    function baseSampleSize(collection, n) {
+      var array = values(collection);
+      return shuffleSelf(array, baseClamp(n, 0, array.length));
+    }
+
+    /**
+     * The base implementation of `_.set`.
+     *
+     * @private
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The path of the property to set.
+     * @param {*} value The value to set.
+     * @param {Function} [customizer] The function to customize path creation.
+     * @returns {Object} Returns `object`.
+     */
+    function baseSet(object, path, value, customizer) {
+      if (!isObject(object)) {
+        return object;
+      }
+      path = castPath(path, object);
+
+      var index = -1,
+          length = path.length,
+          lastIndex = length - 1,
+          nested = object;
+
+      while (nested != null && ++index < length) {
+        var key = toKey(path[index]),
+            newValue = value;
+
+        if (index != lastIndex) {
+          var objValue = nested[key];
+          newValue = customizer ? customizer(objValue, key, nested) : undefined;
+          if (newValue === undefined) {
+            newValue = isObject(objValue)
+              ? objValue
+              : (isIndex(path[index + 1]) ? [] : {});
+          }
+        }
+        assignValue(nested, key, newValue);
+        nested = nested[key];
+      }
+      return object;
+    }
+
+    /**
+     * The base implementation of `setData` without support for hot loop shorting.
+     *
+     * @private
+     * @param {Function} func The function to associate metadata with.
+     * @param {*} data The metadata.
+     * @returns {Function} Returns `func`.
+     */
+    var baseSetData = !metaMap ? identity : function(func, data) {
+      metaMap.set(func, data);
+      return func;
+    };
+
+    /**
+     * The base implementation of `setToString` without support for hot loop shorting.
+     *
+     * @private
+     * @param {Function} func The function to modify.
+     * @param {Function} string The `toString` result.
+     * @returns {Function} Returns `func`.
+     */
+    var baseSetToString = !defineProperty ? identity : function(func, string) {
+      return defineProperty(func, 'toString', {
+        'configurable': true,
+        'enumerable': false,
+        'value': constant(string),
+        'writable': true
+      });
+    };
+
+    /**
+     * The base implementation of `_.shuffle`.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to shuffle.
+     * @returns {Array} Returns the new shuffled array.
+     */
+    function baseShuffle(collection) {
+      return shuffleSelf(values(collection));
+    }
+
+    /**
+     * The base implementation of `_.slice` without an iteratee call guard.
+     *
+     * @private
+     * @param {Array} array The array to slice.
+     * @param {number} [start=0] The start position.
+     * @param {number} [end=array.length] The end position.
+     * @returns {Array} Returns the slice of `array`.
+     */
+    function baseSlice(array, start, end) {
+      var index = -1,
+          length = array.length;
+
+      if (start < 0) {
+        start = -start > length ? 0 : (length + start);
+      }
+      end = end > length ? length : end;
+      if (end < 0) {
+        end += length;
+      }
+      length = start > end ? 0 : ((end - start) >>> 0);
+      start >>>= 0;
+
+      var result = Array(length);
+      while (++index < length) {
+        result[index] = array[index + start];
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.some` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} predicate The function invoked per iteration.
+     * @returns {boolean} Returns `true` if any element passes the predicate check,
+     *  else `false`.
+     */
+    function baseSome(collection, predicate) {
+      var result;
+
+      baseEach(collection, function(value, index, collection) {
+        result = predicate(value, index, collection);
+        return !result;
+      });
+      return !!result;
+    }
+
+    /**
+     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
+     * performs a binary search of `array` to determine the index at which `value`
+     * should be inserted into `array` in order to maintain its sort order.
+     *
+     * @private
+     * @param {Array} array The sorted array to inspect.
+     * @param {*} value The value to evaluate.
+     * @param {boolean} [retHighest] Specify returning the highest qualified index.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     */
+    function baseSortedIndex(array, value, retHighest) {
+      var low = 0,
+          high = array == null ? low : array.length;
+
+      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
+        while (low < high) {
+          var mid = (low + high) >>> 1,
+              computed = array[mid];
+
+          if (computed !== null && !isSymbol(computed) &&
+              (retHighest ? (computed <= value) : (computed < value))) {
+            low = mid + 1;
+          } else {
+            high = mid;
+          }
+        }
+        return high;
+      }
+      return baseSortedIndexBy(array, value, identity, retHighest);
+    }
+
+    /**
+     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
+     * which invokes `iteratee` for `value` and each element of `array` to compute
+     * their sort ranking. The iteratee is invoked with one argument; (value).
+     *
+     * @private
+     * @param {Array} array The sorted array to inspect.
+     * @param {*} value The value to evaluate.
+     * @param {Function} iteratee The iteratee invoked per element.
+     * @param {boolean} [retHighest] Specify returning the highest qualified index.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     */
+    function baseSortedIndexBy(array, value, iteratee, retHighest) {
+      value = iteratee(value);
+
+      var low = 0,
+          high = array == null ? 0 : array.length,
+          valIsNaN = value !== value,
+          valIsNull = value === null,
+          valIsSymbol = isSymbol(value),
+          valIsUndefined = value === undefined;
+
+      while (low < high) {
+        var mid = nativeFloor((low + high) / 2),
+            computed = iteratee(array[mid]),
+            othIsDefined = computed !== undefined,
+            othIsNull = computed === null,
+            othIsReflexive = computed === computed,
+            othIsSymbol = isSymbol(computed);
+
+        if (valIsNaN) {
+          var setLow = retHighest || othIsReflexive;
+        } else if (valIsUndefined) {
+          setLow = othIsReflexive && (retHighest || othIsDefined);
+        } else if (valIsNull) {
+          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
+        } else if (valIsSymbol) {
+          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
+        } else if (othIsNull || othIsSymbol) {
+          setLow = false;
+        } else {
+          setLow = retHighest ? (computed <= value) : (computed < value);
+        }
+        if (setLow) {
+          low = mid + 1;
+        } else {
+          high = mid;
+        }
+      }
+      return nativeMin(high, MAX_ARRAY_INDEX);
+    }
+
+    /**
+     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
+     * support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array} array The array to inspect.
+     * @param {Function} [iteratee] The iteratee invoked per element.
+     * @returns {Array} Returns the new duplicate free array.
+     */
+    function baseSortedUniq(array, iteratee) {
+      var index = -1,
+          length = array.length,
+          resIndex = 0,
+          result = [];
+
+      while (++index < length) {
+        var value = array[index],
+            computed = iteratee ? iteratee(value) : value;
+
+        if (!index || !eq(computed, seen)) {
+          var seen = computed;
+          result[resIndex++] = value === 0 ? 0 : value;
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.toNumber` which doesn't ensure correct
+     * conversions of binary, hexadecimal, or octal string values.
+     *
+     * @private
+     * @param {*} value The value to process.
+     * @returns {number} Returns the number.
+     */
+    function baseToNumber(value) {
+      if (typeof value == 'number') {
+        return value;
+      }
+      if (isSymbol(value)) {
+        return NAN;
+      }
+      return +value;
+    }
+
+    /**
+     * The base implementation of `_.toString` which doesn't convert nullish
+     * values to empty strings.
+     *
+     * @private
+     * @param {*} value The value to process.
+     * @returns {string} Returns the string.
+     */
+    function baseToString(value) {
+      // Exit early for strings to avoid a performance hit in some environments.
+      if (typeof value == 'string') {
+        return value;
+      }
+      if (isArray(value)) {
+        // Recursively convert values (susceptible to call stack limits).
+        return arrayMap(value, baseToString) + '';
+      }
+      if (isSymbol(value)) {
+        return symbolToString ? symbolToString.call(value) : '';
+      }
+      var result = (value + '');
+      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
+    }
+
+    /**
+     * The base implementation of `_.uniqBy` without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array} array The array to inspect.
+     * @param {Function} [iteratee] The iteratee invoked per element.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new duplicate free array.
+     */
+    function baseUniq(array, iteratee, comparator) {
+      var index = -1,
+          includes = arrayIncludes,
+          length = array.length,
+          isCommon = true,
+          result = [],
+          seen = result;
+
+      if (comparator) {
+        isCommon = false;
+        includes = arrayIncludesWith;
+      }
+      else if (length >= LARGE_ARRAY_SIZE) {
+        var set = iteratee ? null : createSet(array);
+        if (set) {
+          return setToArray(set);
+        }
+        isCommon = false;
+        includes = cacheHas;
+        seen = new SetCache;
+      }
+      else {
+        seen = iteratee ? [] : result;
+      }
+      outer:
+      while (++index < length) {
+        var value = array[index],
+            computed = iteratee ? iteratee(value) : value;
+
+        value = (comparator || value !== 0) ? value : 0;
+        if (isCommon && computed === computed) {
+          var seenIndex = seen.length;
+          while (seenIndex--) {
+            if (seen[seenIndex] === computed) {
+              continue outer;
+            }
+          }
+          if (iteratee) {
+            seen.push(computed);
+          }
+          result.push(value);
+        }
+        else if (!includes(seen, computed, comparator)) {
+          if (seen !== result) {
+            seen.push(computed);
+          }
+          result.push(value);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * The base implementation of `_.unset`.
+     *
+     * @private
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The property path to unset.
+     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
+     */
+    function baseUnset(object, path) {
+      path = castPath(path, object);
+      object = parent(object, path);
+      return object == null || delete object[toKey(last(path))];
+    }
+
+    /**
+     * The base implementation of `_.update`.
+     *
+     * @private
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The path of the property to update.
+     * @param {Function} updater The function to produce the updated value.
+     * @param {Function} [customizer] The function to customize path creation.
+     * @returns {Object} Returns `object`.
+     */
+    function baseUpdate(object, path, updater, customizer) {
+      return baseSet(object, path, updater(baseGet(object, path)), customizer);
+    }
+
+    /**
+     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
+     * without support for iteratee shorthands.
+     *
+     * @private
+     * @param {Array} array The array to query.
+     * @param {Function} predicate The function invoked per iteration.
+     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
+     * @param {boolean} [fromRight] Specify iterating from right to left.
+     * @returns {Array} Returns the slice of `array`.
+     */
+    function baseWhile(array, predicate, isDrop, fromRight) {
+      var length = array.length,
+          index = fromRight ? length : -1;
+
+      while ((fromRight ? index-- : ++index < length) &&
+        predicate(array[index], index, array)) {}
+
+      return isDrop
+        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
+        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
+    }
+
+    /**
+     * The base implementation of `wrapperValue` which returns the result of
+     * performing a sequence of actions on the unwrapped `value`, where each
+     * successive action is supplied the return value of the previous.
+     *
+     * @private
+     * @param {*} value The unwrapped value.
+     * @param {Array} actions Actions to perform to resolve the unwrapped value.
+     * @returns {*} Returns the resolved value.
+     */
+    function baseWrapperValue(value, actions) {
+      var result = value;
+      if (result instanceof LazyWrapper) {
+        result = result.value();
+      }
+      return arrayReduce(actions, function(result, action) {
+        return action.func.apply(action.thisArg, arrayPush([result], action.args));
+      }, result);
+    }
+
+    /**
+     * The base implementation of methods like `_.xor`, without support for
+     * iteratee shorthands, that accepts an array of arrays to inspect.
+     *
+     * @private
+     * @param {Array} arrays The arrays to inspect.
+     * @param {Function} [iteratee] The iteratee invoked per element.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new array of values.
+     */
+    function baseXor(arrays, iteratee, comparator) {
+      var length = arrays.length;
+      if (length < 2) {
+        return length ? baseUniq(arrays[0]) : [];
+      }
+      var index = -1,
+          result = Array(length);
+
+      while (++index < length) {
+        var array = arrays[index],
+            othIndex = -1;
+
+        while (++othIndex < length) {
+          if (othIndex != index) {
+            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
+          }
+        }
+      }
+      return baseUniq(baseFlatten(result, 1), iteratee, comparator);
+    }
+
+    /**
+     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
+     *
+     * @private
+     * @param {Array} props The property identifiers.
+     * @param {Array} values The property values.
+     * @param {Function} assignFunc The function to assign values.
+     * @returns {Object} Returns the new object.
+     */
+    function baseZipObject(props, values, assignFunc) {
+      var index = -1,
+          length = props.length,
+          valsLength = values.length,
+          result = {};
+
+      while (++index < length) {
+        var value = index < valsLength ? values[index] : undefined;
+        assignFunc(result, props[index], value);
+      }
+      return result;
+    }
+
+    /**
+     * Casts `value` to an empty array if it's not an array like object.
+     *
+     * @private
+     * @param {*} value The value to inspect.
+     * @returns {Array|Object} Returns the cast array-like object.
+     */
+    function castArrayLikeObject(value) {
+      return isArrayLikeObject(value) ? value : [];
+    }
+
+    /**
+     * Casts `value` to `identity` if it's not a function.
+     *
+     * @private
+     * @param {*} value The value to inspect.
+     * @returns {Function} Returns cast function.
+     */
+    function castFunction(value) {
+      return typeof value == 'function' ? value : identity;
+    }
+
+    /**
+     * Casts `value` to a path array if it's not one.
+     *
+     * @private
+     * @param {*} value The value to inspect.
+     * @param {Object} [object] The object to query keys on.
+     * @returns {Array} Returns the cast property path array.
+     */
+    function castPath(value, object) {
+      if (isArray(value)) {
+        return value;
+      }
+      return isKey(value, object) ? [value] : stringToPath(toString(value));
+    }
+
+    /**
+     * A `baseRest` alias which can be replaced with `identity` by module
+     * replacement plugins.
+     *
+     * @private
+     * @type {Function}
+     * @param {Function} func The function to apply a rest parameter to.
+     * @returns {Function} Returns the new function.
+     */
+    var castRest = baseRest;
+
+    /**
+     * Casts `array` to a slice if it's needed.
+     *
+     * @private
+     * @param {Array} array The array to inspect.
+     * @param {number} start The start position.
+     * @param {number} [end=array.length] The end position.
+     * @returns {Array} Returns the cast slice.
+     */
+    function castSlice(array, start, end) {
+      var length = array.length;
+      end = end === undefined ? length : end;
+      return (!start && end >= length) ? array : baseSlice(array, start, end);
+    }
+
+    /**
+     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
+     *
+     * @private
+     * @param {number|Object} id The timer id or timeout object of the timer to clear.
+     */
+    var clearTimeout = ctxClearTimeout || function(id) {
+      return root.clearTimeout(id);
+    };
+
+    /**
+     * Creates a clone of  `buffer`.
+     *
+     * @private
+     * @param {Buffer} buffer The buffer to clone.
+     * @param {boolean} [isDeep] Specify a deep clone.
+     * @returns {Buffer} Returns the cloned buffer.
+     */
+    function cloneBuffer(buffer, isDeep) {
+      if (isDeep) {
+        return buffer.slice();
+      }
+      var length = buffer.length,
+          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
+
+      buffer.copy(result);
+      return result;
+    }
+
+    /**
+     * Creates a clone of `arrayBuffer`.
+     *
+     * @private
+     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
+     * @returns {ArrayBuffer} Returns the cloned array buffer.
+     */
+    function cloneArrayBuffer(arrayBuffer) {
+      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
+      new Uint8Array(result).set(new Uint8Array(arrayBuffer));
+      return result;
+    }
+
+    /**
+     * Creates a clone of `dataView`.
+     *
+     * @private
+     * @param {Object} dataView The data view to clone.
+     * @param {boolean} [isDeep] Specify a deep clone.
+     * @returns {Object} Returns the cloned data view.
+     */
+    function cloneDataView(dataView, isDeep) {
+      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
+      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
+    }
+
+    /**
+     * Creates a clone of `regexp`.
+     *
+     * @private
+     * @param {Object} regexp The regexp to clone.
+     * @returns {Object} Returns the cloned regexp.
+     */
+    function cloneRegExp(regexp) {
+      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
+      result.lastIndex = regexp.lastIndex;
+      return result;
+    }
+
+    /**
+     * Creates a clone of the `symbol` object.
+     *
+     * @private
+     * @param {Object} symbol The symbol object to clone.
+     * @returns {Object} Returns the cloned symbol object.
+     */
+    function cloneSymbol(symbol) {
+      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
+    }
+
+    /**
+     * Creates a clone of `typedArray`.
+     *
+     * @private
+     * @param {Object} typedArray The typed array to clone.
+     * @param {boolean} [isDeep] Specify a deep clone.
+     * @returns {Object} Returns the cloned typed array.
+     */
+    function cloneTypedArray(typedArray, isDeep) {
+      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
+      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
+    }
+
+    /**
+     * Compares values to sort them in ascending order.
+     *
+     * @private
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {number} Returns the sort order indicator for `value`.
+     */
+    function compareAscending(value, other) {
+      if (value !== other) {
+        var valIsDefined = value !== undefined,
+            valIsNull = value === null,
+            valIsReflexive = value === value,
+            valIsSymbol = isSymbol(value);
+
+        var othIsDefined = other !== undefined,
+            othIsNull = other === null,
+            othIsReflexive = other === other,
+            othIsSymbol = isSymbol(other);
+
+        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
+            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
+            (valIsNull && othIsDefined && othIsReflexive) ||
+            (!valIsDefined && othIsReflexive) ||
+            !valIsReflexive) {
+          return 1;
+        }
+        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
+            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
+            (othIsNull && valIsDefined && valIsReflexive) ||
+            (!othIsDefined && valIsReflexive) ||
+            !othIsReflexive) {
+          return -1;
+        }
+      }
+      return 0;
+    }
+
+    /**
+     * Used by `_.orderBy` to compare multiple properties of a value to another
+     * and stable sort them.
+     *
+     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
+     * specify an order of "desc" for descending or "asc" for ascending sort order
+     * of corresponding values.
+     *
+     * @private
+     * @param {Object} object The object to compare.
+     * @param {Object} other The other object to compare.
+     * @param {boolean[]|string[]} orders The order to sort by for each property.
+     * @returns {number} Returns the sort order indicator for `object`.
+     */
+    function compareMultiple(object, other, orders) {
+      var index = -1,
+          objCriteria = object.criteria,
+          othCriteria = other.criteria,
+          length = objCriteria.length,
+          ordersLength = orders.length;
+
+      while (++index < length) {
+        var result = compareAscending(objCriteria[index], othCriteria[index]);
+        if (result) {
+          if (index >= ordersLength) {
+            return result;
+          }
+          var order = orders[index];
+          return result * (order == 'desc' ? -1 : 1);
+        }
+      }
+      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
+      // that causes it, under certain circumstances, to provide the same value for
+      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
+      // for more details.
+      //
+      // This also ensures a stable sort in V8 and other engines.
+      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
+      return object.index - other.index;
+    }
+
+    /**
+     * Creates an array that is the composition of partially applied arguments,
+     * placeholders, and provided arguments into a single array of arguments.
+     *
+     * @private
+     * @param {Array} args The provided arguments.
+     * @param {Array} partials The arguments to prepend to those provided.
+     * @param {Array} holders The `partials` placeholder indexes.
+     * @params {boolean} [isCurried] Specify composing for a curried function.
+     * @returns {Array} Returns the new array of composed arguments.
+     */
+    function composeArgs(args, partials, holders, isCurried) {
+      var argsIndex = -1,
+          argsLength = args.length,
+          holdersLength = holders.length,
+          leftIndex = -1,
+          leftLength = partials.length,
+          rangeLength = nativeMax(argsLength - holdersLength, 0),
+          result = Array(leftLength + rangeLength),
+          isUncurried = !isCurried;
+
+      while (++leftIndex < leftLength) {
+        result[leftIndex] = partials[leftIndex];
+      }
+      while (++argsIndex < holdersLength) {
+        if (isUncurried || argsIndex < argsLength) {
+          result[holders[argsIndex]] = args[argsIndex];
+        }
+      }
+      while (rangeLength--) {
+        result[leftIndex++] = args[argsIndex++];
+      }
+      return result;
+    }
+
+    /**
+     * This function is like `composeArgs` except that the arguments composition
+     * is tailored for `_.partialRight`.
+     *
+     * @private
+     * @param {Array} args The provided arguments.
+     * @param {Array} partials The arguments to append to those provided.
+     * @param {Array} holders The `partials` placeholder indexes.
+     * @params {boolean} [isCurried] Specify composing for a curried function.
+     * @returns {Array} Returns the new array of composed arguments.
+     */
+    function composeArgsRight(args, partials, holders, isCurried) {
+      var argsIndex = -1,
+          argsLength = args.length,
+          holdersIndex = -1,
+          holdersLength = holders.length,
+          rightIndex = -1,
+          rightLength = partials.length,
+          rangeLength = nativeMax(argsLength - holdersLength, 0),
+          result = Array(rangeLength + rightLength),
+          isUncurried = !isCurried;
+
+      while (++argsIndex < rangeLength) {
+        result[argsIndex] = args[argsIndex];
+      }
+      var offset = argsIndex;
+      while (++rightIndex < rightLength) {
+        result[offset + rightIndex] = partials[rightIndex];
+      }
+      while (++holdersIndex < holdersLength) {
+        if (isUncurried || argsIndex < argsLength) {
+          result[offset + holders[holdersIndex]] = args[argsIndex++];
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Copies the values of `source` to `array`.
+     *
+     * @private
+     * @param {Array} source The array to copy values from.
+     * @param {Array} [array=[]] The array to copy values to.
+     * @returns {Array} Returns `array`.
+     */
+    function copyArray(source, array) {
+      var index = -1,
+          length = source.length;
+
+      array || (array = Array(length));
+      while (++index < length) {
+        array[index] = source[index];
+      }
+      return array;
+    }
+
+    /**
+     * Copies properties of `source` to `object`.
+     *
+     * @private
+     * @param {Object} source The object to copy properties from.
+     * @param {Array} props The property identifiers to copy.
+     * @param {Object} [object={}] The object to copy properties to.
+     * @param {Function} [customizer] The function to customize copied values.
+     * @returns {Object} Returns `object`.
+     */
+    function copyObject(source, props, object, customizer) {
+      var isNew = !object;
+      object || (object = {});
+
+      var index = -1,
+          length = props.length;
+
+      while (++index < length) {
+        var key = props[index];
+
+        var newValue = customizer
+          ? customizer(object[key], source[key], key, object, source)
+          : undefined;
+
+        if (newValue === undefined) {
+          newValue = source[key];
+        }
+        if (isNew) {
+          baseAssignValue(object, key, newValue);
+        } else {
+          assignValue(object, key, newValue);
+        }
+      }
+      return object;
+    }
+
+    /**
+     * Copies own symbols of `source` to `object`.
+     *
+     * @private
+     * @param {Object} source The object to copy symbols from.
+     * @param {Object} [object={}] The object to copy symbols to.
+     * @returns {Object} Returns `object`.
+     */
+    function copySymbols(source, object) {
+      return copyObject(source, getSymbols(source), object);
+    }
+
+    /**
+     * Copies own and inherited symbols of `source` to `object`.
+     *
+     * @private
+     * @param {Object} source The object to copy symbols from.
+     * @param {Object} [object={}] The object to copy symbols to.
+     * @returns {Object} Returns `object`.
+     */
+    function copySymbolsIn(source, object) {
+      return copyObject(source, getSymbolsIn(source), object);
+    }
+
+    /**
+     * Creates a function like `_.groupBy`.
+     *
+     * @private
+     * @param {Function} setter The function to set accumulator values.
+     * @param {Function} [initializer] The accumulator object initializer.
+     * @returns {Function} Returns the new aggregator function.
+     */
+    function createAggregator(setter, initializer) {
+      return function(collection, iteratee) {
+        var func = isArray(collection) ? arrayAggregator : baseAggregator,
+            accumulator = initializer ? initializer() : {};
+
+        return func(collection, setter, getIteratee(iteratee, 2), accumulator);
+      };
+    }
+
+    /**
+     * Creates a function like `_.assign`.
+     *
+     * @private
+     * @param {Function} assigner The function to assign values.
+     * @returns {Function} Returns the new assigner function.
+     */
+    function createAssigner(assigner) {
+      return baseRest(function(object, sources) {
+        var index = -1,
+            length = sources.length,
+            customizer = length > 1 ? sources[length - 1] : undefined,
+            guard = length > 2 ? sources[2] : undefined;
+
+        customizer = (assigner.length > 3 && typeof customizer == 'function')
+          ? (length--, customizer)
+          : undefined;
+
+        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
+          customizer = length < 3 ? undefined : customizer;
+          length = 1;
+        }
+        object = Object(object);
+        while (++index < length) {
+          var source = sources[index];
+          if (source) {
+            assigner(object, source, index, customizer);
+          }
+        }
+        return object;
+      });
+    }
+
+    /**
+     * Creates a `baseEach` or `baseEachRight` function.
+     *
+     * @private
+     * @param {Function} eachFunc The function to iterate over a collection.
+     * @param {boolean} [fromRight] Specify iterating from right to left.
+     * @returns {Function} Returns the new base function.
+     */
+    function createBaseEach(eachFunc, fromRight) {
+      return function(collection, iteratee) {
+        if (collection == null) {
+          return collection;
+        }
+        if (!isArrayLike(collection)) {
+          return eachFunc(collection, iteratee);
+        }
+        var length = collection.length,
+            index = fromRight ? length : -1,
+            iterable = Object(collection);
+
+        while ((fromRight ? index-- : ++index < length)) {
+          if (iteratee(iterable[index], index, iterable) === false) {
+            break;
+          }
+        }
+        return collection;
+      };
+    }
+
+    /**
+     * Creates a base function for methods like `_.forIn` and `_.forOwn`.
+     *
+     * @private
+     * @param {boolean} [fromRight] Specify iterating from right to left.
+     * @returns {Function} Returns the new base function.
+     */
+    function createBaseFor(fromRight) {
+      return function(object, iteratee, keysFunc) {
+        var index = -1,
+            iterable = Object(object),
+            props = keysFunc(object),
+            length = props.length;
+
+        while (length--) {
+          var key = props[fromRight ? length : ++index];
+          if (iteratee(iterable[key], key, iterable) === false) {
+            break;
+          }
+        }
+        return object;
+      };
+    }
+
+    /**
+     * Creates a function that wraps `func` to invoke it with the optional `this`
+     * binding of `thisArg`.
+     *
+     * @private
+     * @param {Function} func The function to wrap.
+     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @returns {Function} Returns the new wrapped function.
+     */
+    function createBind(func, bitmask, thisArg) {
+      var isBind = bitmask & WRAP_BIND_FLAG,
+          Ctor = createCtor(func);
+
+      function wrapper() {
+        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
+        return fn.apply(isBind ? thisArg : this, arguments);
+      }
+      return wrapper;
+    }
+
+    /**
+     * Creates a function like `_.lowerFirst`.
+     *
+     * @private
+     * @param {string} methodName The name of the `String` case method to use.
+     * @returns {Function} Returns the new case function.
+     */
+    function createCaseFirst(methodName) {
+      return function(string) {
+        string = toString(string);
+
+        var strSymbols = hasUnicode(string)
+          ? stringToArray(string)
+          : undefined;
+
+        var chr = strSymbols
+          ? strSymbols[0]
+          : string.charAt(0);
+
+        var trailing = strSymbols
+          ? castSlice(strSymbols, 1).join('')
+          : string.slice(1);
+
+        return chr[methodName]() + trailing;
+      };
+    }
+
+    /**
+     * Creates a function like `_.camelCase`.
+     *
+     * @private
+     * @param {Function} callback The function to combine each word.
+     * @returns {Function} Returns the new compounder function.
+     */
+    function createCompounder(callback) {
+      return function(string) {
+        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
+      };
+    }
+
+    /**
+     * Creates a function that produces an instance of `Ctor` regardless of
+     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
+     *
+     * @private
+     * @param {Function} Ctor The constructor to wrap.
+     * @returns {Function} Returns the new wrapped function.
+     */
+    function createCtor(Ctor) {
+      return function() {
+        // Use a `switch` statement to work with class constructors. See
+        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
+        // for more details.
+        var args = arguments;
+        switch (args.length) {
+          case 0: return new Ctor;
+          case 1: return new Ctor(args[0]);
+          case 2: return new Ctor(args[0], args[1]);
+          case 3: return new Ctor(args[0], args[1], args[2]);
+          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
+          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
+          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
+          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
+        }
+        var thisBinding = baseCreate(Ctor.prototype),
+            result = Ctor.apply(thisBinding, args);
+
+        // Mimic the constructor's `return` behavior.
+        // See https://es5.github.io/#x13.2.2 for more details.
+        return isObject(result) ? result : thisBinding;
+      };
+    }
+
+    /**
+     * Creates a function that wraps `func` to enable currying.
+     *
+     * @private
+     * @param {Function} func The function to wrap.
+     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+     * @param {number} arity The arity of `func`.
+     * @returns {Function} Returns the new wrapped function.
+     */
+    function createCurry(func, bitmask, arity) {
+      var Ctor = createCtor(func);
+
+      function wrapper() {
+        var length = arguments.length,
+            args = Array(length),
+            index = length,
+            placeholder = getHolder(wrapper);
+
+        while (index--) {
+          args[index] = arguments[index];
+        }
+        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
+          ? []
+          : replaceHolders(args, placeholder);
+
+        length -= holders.length;
+        if (length < arity) {
+          return createRecurry(
+            func, bitmask, createHybrid, wrapper.placeholder, undefined,
+            args, holders, undefined, undefined, arity - length);
+        }
+        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
+        return apply(fn, this, args);
+      }
+      return wrapper;
+    }
+
+    /**
+     * Creates a `_.find` or `_.findLast` function.
+     *
+     * @private
+     * @param {Function} findIndexFunc The function to find the collection index.
+     * @returns {Function} Returns the new find function.
+     */
+    function createFind(findIndexFunc) {
+      return function(collection, predicate, fromIndex) {
+        var iterable = Object(collection);
+        if (!isArrayLike(collection)) {
+          var iteratee = getIteratee(predicate, 3);
+          collection = keys(collection);
+          predicate = function(key) { return iteratee(iterable[key], key, iterable); };
+        }
+        var index = findIndexFunc(collection, predicate, fromIndex);
+        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
+      };
+    }
+
+    /**
+     * Creates a `_.flow` or `_.flowRight` function.
+     *
+     * @private
+     * @param {boolean} [fromRight] Specify iterating from right to left.
+     * @returns {Function} Returns the new flow function.
+     */
+    function createFlow(fromRight) {
+      return flatRest(function(funcs) {
+        var length = funcs.length,
+            index = length,
+            prereq = LodashWrapper.prototype.thru;
+
+        if (fromRight) {
+          funcs.reverse();
+        }
+        while (index--) {
+          var func = funcs[index];
+          if (typeof func != 'function') {
+            throw new TypeError(FUNC_ERROR_TEXT);
+          }
+          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
+            var wrapper = new LodashWrapper([], true);
+          }
+        }
+        index = wrapper ? index : length;
+        while (++index < length) {
+          func = funcs[index];
+
+          var funcName = getFuncName(func),
+              data = funcName == 'wrapper' ? getData(func) : undefined;
+
+          if (data && isLaziable(data[0]) &&
+                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
+                !data[4].length && data[9] == 1
+              ) {
+            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
+          } else {
+            wrapper = (func.length == 1 && isLaziable(func))
+              ? wrapper[funcName]()
+              : wrapper.thru(func);
+          }
+        }
+        return function() {
+          var args = arguments,
+              value = args[0];
+
+          if (wrapper && args.length == 1 && isArray(value)) {
+            return wrapper.plant(value).value();
+          }
+          var index = 0,
+              result = length ? funcs[index].apply(this, args) : value;
+
+          while (++index < length) {
+            result = funcs[index].call(this, result);
+          }
+          return result;
+        };
+      });
+    }
+
+    /**
+     * Creates a function that wraps `func` to invoke it with optional `this`
+     * binding of `thisArg`, partial application, and currying.
+     *
+     * @private
+     * @param {Function|string} func The function or method name to wrap.
+     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @param {Array} [partials] The arguments to prepend to those provided to
+     *  the new function.
+     * @param {Array} [holders] The `partials` placeholder indexes.
+     * @param {Array} [partialsRight] The arguments to append to those provided
+     *  to the new function.
+     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
+     * @param {Array} [argPos] The argument positions of the new function.
+     * @param {number} [ary] The arity cap of `func`.
+     * @param {number} [arity] The arity of `func`.
+     * @returns {Function} Returns the new wrapped function.
+     */
+    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
+      var isAry = bitmask & WRAP_ARY_FLAG,
+          isBind = bitmask & WRAP_BIND_FLAG,
+          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
+          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
+          isFlip = bitmask & WRAP_FLIP_FLAG,
+          Ctor = isBindKey ? undefined : createCtor(func);
+
+      function wrapper() {
+        var length = arguments.length,
+            args = Array(length),
+            index = length;
+
+        while (index--) {
+          args[index] = arguments[index];
+        }
+        if (isCurried) {
+          var placeholder = getHolder(wrapper),
+              holdersCount = countHolders(args, placeholder);
+        }
+        if (partials) {
+          args = composeArgs(args, partials, holders, isCurried);
+        }
+        if (partialsRight) {
+          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
+        }
+        length -= holdersCount;
+        if (isCurried && length < arity) {
+          var newHolders = replaceHolders(args, placeholder);
+          return createRecurry(
+            func, bitmask, createHybrid, wrapper.placeholder, thisArg,
+            args, newHolders, argPos, ary, arity - length
+          );
+        }
+        var thisBinding = isBind ? thisArg : this,
+            fn = isBindKey ? thisBinding[func] : func;
+
+        length = args.length;
+        if (argPos) {
+          args = reorder(args, argPos);
+        } else if (isFlip && length > 1) {
+          args.reverse();
+        }
+        if (isAry && ary < length) {
+          args.length = ary;
+        }
+        if (this && this !== root && this instanceof wrapper) {
+          fn = Ctor || createCtor(fn);
+        }
+        return fn.apply(thisBinding, args);
+      }
+      return wrapper;
+    }
+
+    /**
+     * Creates a function like `_.invertBy`.
+     *
+     * @private
+     * @param {Function} setter The function to set accumulator values.
+     * @param {Function} toIteratee The function to resolve iteratees.
+     * @returns {Function} Returns the new inverter function.
+     */
+    function createInverter(setter, toIteratee) {
+      return function(object, iteratee) {
+        return baseInverter(object, setter, toIteratee(iteratee), {});
+      };
+    }
+
+    /**
+     * Creates a function that performs a mathematical operation on two values.
+     *
+     * @private
+     * @param {Function} operator The function to perform the operation.
+     * @param {number} [defaultValue] The value used for `undefined` arguments.
+     * @returns {Function} Returns the new mathematical operation function.
+     */
+    function createMathOperation(operator, defaultValue) {
+      return function(value, other) {
+        var result;
+        if (value === undefined && other === undefined) {
+          return defaultValue;
+        }
+        if (value !== undefined) {
+          result = value;
+        }
+        if (other !== undefined) {
+          if (result === undefined) {
+            return other;
+          }
+          if (typeof value == 'string' || typeof other == 'string') {
+            value = baseToString(value);
+            other = baseToString(other);
+          } else {
+            value = baseToNumber(value);
+            other = baseToNumber(other);
+          }
+          result = operator(value, other);
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Creates a function like `_.over`.
+     *
+     * @private
+     * @param {Function} arrayFunc The function to iterate over iteratees.
+     * @returns {Function} Returns the new over function.
+     */
+    function createOver(arrayFunc) {
+      return flatRest(function(iteratees) {
+        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
+        return baseRest(function(args) {
+          var thisArg = this;
+          return arrayFunc(iteratees, function(iteratee) {
+            return apply(iteratee, thisArg, args);
+          });
+        });
+      });
+    }
+
+    /**
+     * Creates the padding for `string` based on `length`. The `chars` string
+     * is truncated if the number of characters exceeds `length`.
+     *
+     * @private
+     * @param {number} length The padding length.
+     * @param {string} [chars=' '] The string used as padding.
+     * @returns {string} Returns the padding for `string`.
+     */
+    function createPadding(length, chars) {
+      chars = chars === undefined ? ' ' : baseToString(chars);
+
+      var charsLength = chars.length;
+      if (charsLength < 2) {
+        return charsLength ? baseRepeat(chars, length) : chars;
+      }
+      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
+      return hasUnicode(chars)
+        ? castSlice(stringToArray(result), 0, length).join('')
+        : result.slice(0, length);
+    }
+
+    /**
+     * Creates a function that wraps `func` to invoke it with the `this` binding
+     * of `thisArg` and `partials` prepended to the arguments it receives.
+     *
+     * @private
+     * @param {Function} func The function to wrap.
+     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+     * @param {*} thisArg The `this` binding of `func`.
+     * @param {Array} partials The arguments to prepend to those provided to
+     *  the new function.
+     * @returns {Function} Returns the new wrapped function.
+     */
+    function createPartial(func, bitmask, thisArg, partials) {
+      var isBind = bitmask & WRAP_BIND_FLAG,
+          Ctor = createCtor(func);
+
+      function wrapper() {
+        var argsIndex = -1,
+            argsLength = arguments.length,
+            leftIndex = -1,
+            leftLength = partials.length,
+            args = Array(leftLength + argsLength),
+            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
+
+        while (++leftIndex < leftLength) {
+          args[leftIndex] = partials[leftIndex];
+        }
+        while (argsLength--) {
+          args[leftIndex++] = arguments[++argsIndex];
+        }
+        return apply(fn, isBind ? thisArg : this, args);
+      }
+      return wrapper;
+    }
+
+    /**
+     * Creates a `_.range` or `_.rangeRight` function.
+     *
+     * @private
+     * @param {boolean} [fromRight] Specify iterating from right to left.
+     * @returns {Function} Returns the new range function.
+     */
+    function createRange(fromRight) {
+      return function(start, end, step) {
+        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
+          end = step = undefined;
+        }
+        // Ensure the sign of `-0` is preserved.
+        start = toFinite(start);
+        if (end === undefined) {
+          end = start;
+          start = 0;
+        } else {
+          end = toFinite(end);
+        }
+        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
+        return baseRange(start, end, step, fromRight);
+      };
+    }
+
+    /**
+     * Creates a function that performs a relational operation on two values.
+     *
+     * @private
+     * @param {Function} operator The function to perform the operation.
+     * @returns {Function} Returns the new relational operation function.
+     */
+    function createRelationalOperation(operator) {
+      return function(value, other) {
+        if (!(typeof value == 'string' && typeof other == 'string')) {
+          value = toNumber(value);
+          other = toNumber(other);
+        }
+        return operator(value, other);
+      };
+    }
+
+    /**
+     * Creates a function that wraps `func` to continue currying.
+     *
+     * @private
+     * @param {Function} func The function to wrap.
+     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+     * @param {Function} wrapFunc The function to create the `func` wrapper.
+     * @param {*} placeholder The placeholder value.
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @param {Array} [partials] The arguments to prepend to those provided to
+     *  the new function.
+     * @param {Array} [holders] The `partials` placeholder indexes.
+     * @param {Array} [argPos] The argument positions of the new function.
+     * @param {number} [ary] The arity cap of `func`.
+     * @param {number} [arity] The arity of `func`.
+     * @returns {Function} Returns the new wrapped function.
+     */
+    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
+      var isCurry = bitmask & WRAP_CURRY_FLAG,
+          newHolders = isCurry ? holders : undefined,
+          newHoldersRight = isCurry ? undefined : holders,
+          newPartials = isCurry ? partials : undefined,
+          newPartialsRight = isCurry ? undefined : partials;
+
+      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
+      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);
+
+      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
+        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
+      }
+      var newData = [
+        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
+        newHoldersRight, argPos, ary, arity
+      ];
+
+      var result = wrapFunc.apply(undefined, newData);
+      if (isLaziable(func)) {
+        setData(result, newData);
+      }
+      result.placeholder = placeholder;
+      return setWrapToString(result, func, bitmask);
+    }
+
+    /**
+     * Creates a function like `_.round`.
+     *
+     * @private
+     * @param {string} methodName The name of the `Math` method to use when rounding.
+     * @returns {Function} Returns the new round function.
+     */
+    function createRound(methodName) {
+      var func = Math[methodName];
+      return function(number, precision) {
+        number = toNumber(number);
+        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
+        if (precision) {
+          // Shift with exponential notation to avoid floating-point issues.
+          // See [MDN](https://mdn.io/round#Examples) for more details.
+          var pair = (toString(number) + 'e').split('e'),
+              value = func(pair[0] + 'e' + (+pair[1] + precision));
+
+          pair = (toString(value) + 'e').split('e');
+          return +(pair[0] + 'e' + (+pair[1] - precision));
+        }
+        return func(number);
+      };
+    }
+
+    /**
+     * Creates a set object of `values`.
+     *
+     * @private
+     * @param {Array} values The values to add to the set.
+     * @returns {Object} Returns the new set.
+     */
+    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
+      return new Set(values);
+    };
+
+    /**
+     * Creates a `_.toPairs` or `_.toPairsIn` function.
+     *
+     * @private
+     * @param {Function} keysFunc The function to get the keys of a given object.
+     * @returns {Function} Returns the new pairs function.
+     */
+    function createToPairs(keysFunc) {
+      return function(object) {
+        var tag = getTag(object);
+        if (tag == mapTag) {
+          return mapToArray(object);
+        }
+        if (tag == setTag) {
+          return setToPairs(object);
+        }
+        return baseToPairs(object, keysFunc(object));
+      };
+    }
+
+    /**
+     * Creates a function that either curries or invokes `func` with optional
+     * `this` binding and partially applied arguments.
+     *
+     * @private
+     * @param {Function|string} func The function or method name to wrap.
+     * @param {number} bitmask The bitmask flags.
+     *    1 - `_.bind`
+     *    2 - `_.bindKey`
+     *    4 - `_.curry` or `_.curryRight` of a bound function
+     *    8 - `_.curry`
+     *   16 - `_.curryRight`
+     *   32 - `_.partial`
+     *   64 - `_.partialRight`
+     *  128 - `_.rearg`
+     *  256 - `_.ary`
+     *  512 - `_.flip`
+     * @param {*} [thisArg] The `this` binding of `func`.
+     * @param {Array} [partials] The arguments to be partially applied.
+     * @param {Array} [holders] The `partials` placeholder indexes.
+     * @param {Array} [argPos] The argument positions of the new function.
+     * @param {number} [ary] The arity cap of `func`.
+     * @param {number} [arity] The arity of `func`.
+     * @returns {Function} Returns the new wrapped function.
+     */
+    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
+      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
+      if (!isBindKey && typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      var length = partials ? partials.length : 0;
+      if (!length) {
+        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
+        partials = holders = undefined;
+      }
+      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
+      arity = arity === undefined ? arity : toInteger(arity);
+      length -= holders ? holders.length : 0;
+
+      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
+        var partialsRight = partials,
+            holdersRight = holders;
+
+        partials = holders = undefined;
+      }
+      var data = isBindKey ? undefined : getData(func);
+
+      var newData = [
+        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
+        argPos, ary, arity
+      ];
+
+      if (data) {
+        mergeData(newData, data);
+      }
+      func = newData[0];
+      bitmask = newData[1];
+      thisArg = newData[2];
+      partials = newData[3];
+      holders = newData[4];
+      arity = newData[9] = newData[9] === undefined
+        ? (isBindKey ? 0 : func.length)
+        : nativeMax(newData[9] - length, 0);
+
+      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
+        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
+      }
+      if (!bitmask || bitmask == WRAP_BIND_FLAG) {
+        var result = createBind(func, bitmask, thisArg);
+      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
+        result = createCurry(func, bitmask, arity);
+      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
+        result = createPartial(func, bitmask, thisArg, partials);
+      } else {
+        result = createHybrid.apply(undefined, newData);
+      }
+      var setter = data ? baseSetData : setData;
+      return setWrapToString(setter(result, newData), func, bitmask);
+    }
+
+    /**
+     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
+     * of source objects to the destination object for all destination properties
+     * that resolve to `undefined`.
+     *
+     * @private
+     * @param {*} objValue The destination value.
+     * @param {*} srcValue The source value.
+     * @param {string} key The key of the property to assign.
+     * @param {Object} object The parent object of `objValue`.
+     * @returns {*} Returns the value to assign.
+     */
+    function customDefaultsAssignIn(objValue, srcValue, key, object) {
+      if (objValue === undefined ||
+          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
+        return srcValue;
+      }
+      return objValue;
+    }
+
+    /**
+     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
+     * objects into destination objects that are passed thru.
+     *
+     * @private
+     * @param {*} objValue The destination value.
+     * @param {*} srcValue The source value.
+     * @param {string} key The key of the property to merge.
+     * @param {Object} object The parent object of `objValue`.
+     * @param {Object} source The parent object of `srcValue`.
+     * @param {Object} [stack] Tracks traversed source values and their merged
+     *  counterparts.
+     * @returns {*} Returns the value to assign.
+     */
+    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
+      if (isObject(objValue) && isObject(srcValue)) {
+        // Recursively merge objects and arrays (susceptible to call stack limits).
+        stack.set(srcValue, objValue);
+        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
+        stack['delete'](srcValue);
+      }
+      return objValue;
+    }
+
+    /**
+     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
+     * objects.
+     *
+     * @private
+     * @param {*} value The value to inspect.
+     * @param {string} key The key of the property to inspect.
+     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
+     */
+    function customOmitClone(value) {
+      return isPlainObject(value) ? undefined : value;
+    }
+
+    /**
+     * A specialized version of `baseIsEqualDeep` for arrays with support for
+     * partial deep comparisons.
+     *
+     * @private
+     * @param {Array} array The array to compare.
+     * @param {Array} other The other array to compare.
+     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+     * @param {Function} customizer The function to customize comparisons.
+     * @param {Function} equalFunc The function to determine equivalents of values.
+     * @param {Object} stack Tracks traversed `array` and `other` objects.
+     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
+     */
+    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
+      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
+          arrLength = array.length,
+          othLength = other.length;
+
+      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
+        return false;
+      }
+      // Assume cyclic values are equal.
+      var stacked = stack.get(array);
+      if (stacked && stack.get(other)) {
+        return stacked == other;
+      }
+      var index = -1,
+          result = true,
+          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;
+
+      stack.set(array, other);
+      stack.set(other, array);
+
+      // Ignore non-index properties.
+      while (++index < arrLength) {
+        var arrValue = array[index],
+            othValue = other[index];
+
+        if (customizer) {
+          var compared = isPartial
+            ? customizer(othValue, arrValue, index, other, array, stack)
+            : customizer(arrValue, othValue, index, array, other, stack);
+        }
+        if (compared !== undefined) {
+          if (compared) {
+            continue;
+          }
+          result = false;
+          break;
+        }
+        // Recursively compare arrays (susceptible to call stack limits).
+        if (seen) {
+          if (!arraySome(other, function(othValue, othIndex) {
+                if (!cacheHas(seen, othIndex) &&
+                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
+                  return seen.push(othIndex);
+                }
+              })) {
+            result = false;
+            break;
+          }
+        } else if (!(
+              arrValue === othValue ||
+                equalFunc(arrValue, othValue, bitmask, customizer, stack)
+            )) {
+          result = false;
+          break;
+        }
+      }
+      stack['delete'](array);
+      stack['delete'](other);
+      return result;
+    }
+
+    /**
+     * A specialized version of `baseIsEqualDeep` for comparing objects of
+     * the same `toStringTag`.
+     *
+     * **Note:** This function only supports comparing values with tags of
+     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
+     *
+     * @private
+     * @param {Object} object The object to compare.
+     * @param {Object} other The other object to compare.
+     * @param {string} tag The `toStringTag` of the objects to compare.
+     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+     * @param {Function} customizer The function to customize comparisons.
+     * @param {Function} equalFunc The function to determine equivalents of values.
+     * @param {Object} stack Tracks traversed `object` and `other` objects.
+     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+     */
+    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
+      switch (tag) {
+        case dataViewTag:
+          if ((object.byteLength != other.byteLength) ||
+              (object.byteOffset != other.byteOffset)) {
+            return false;
+          }
+          object = object.buffer;
+          other = other.buffer;
+
+        case arrayBufferTag:
+          if ((object.byteLength != other.byteLength) ||
+              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
+            return false;
+          }
+          return true;
+
+        case boolTag:
+        case dateTag:
+        case numberTag:
+          // Coerce booleans to `1` or `0` and dates to milliseconds.
+          // Invalid dates are coerced to `NaN`.
+          return eq(+object, +other);
+
+        case errorTag:
+          return object.name == other.name && object.message == other.message;
+
+        case regexpTag:
+        case stringTag:
+          // Coerce regexes to strings and treat strings, primitives and objects,
+          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
+          // for more details.
+          return object == (other + '');
+
+        case mapTag:
+          var convert = mapToArray;
+
+        case setTag:
+          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
+          convert || (convert = setToArray);
+
+          if (object.size != other.size && !isPartial) {
+            return false;
+          }
+          // Assume cyclic values are equal.
+          var stacked = stack.get(object);
+          if (stacked) {
+            return stacked == other;
+          }
+          bitmask |= COMPARE_UNORDERED_FLAG;
+
+          // Recursively compare objects (susceptible to call stack limits).
+          stack.set(object, other);
+          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
+          stack['delete'](object);
+          return result;
+
+        case symbolTag:
+          if (symbolValueOf) {
+            return symbolValueOf.call(object) == symbolValueOf.call(other);
+          }
+      }
+      return false;
+    }
+
+    /**
+     * A specialized version of `baseIsEqualDeep` for objects with support for
+     * partial deep comparisons.
+     *
+     * @private
+     * @param {Object} object The object to compare.
+     * @param {Object} other The other object to compare.
+     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+     * @param {Function} customizer The function to customize comparisons.
+     * @param {Function} equalFunc The function to determine equivalents of values.
+     * @param {Object} stack Tracks traversed `object` and `other` objects.
+     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+     */
+    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
+      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
+          objProps = getAllKeys(object),
+          objLength = objProps.length,
+          othProps = getAllKeys(other),
+          othLength = othProps.length;
+
+      if (objLength != othLength && !isPartial) {
+        return false;
+      }
+      var index = objLength;
+      while (index--) {
+        var key = objProps[index];
+        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
+          return false;
+        }
+      }
+      // Assume cyclic values are equal.
+      var stacked = stack.get(object);
+      if (stacked && stack.get(other)) {
+        return stacked == other;
+      }
+      var result = true;
+      stack.set(object, other);
+      stack.set(other, object);
+
+      var skipCtor = isPartial;
+      while (++index < objLength) {
+        key = objProps[index];
+        var objValue = object[key],
+            othValue = other[key];
+
+        if (customizer) {
+          var compared = isPartial
+            ? customizer(othValue, objValue, key, other, object, stack)
+            : customizer(objValue, othValue, key, object, other, stack);
+        }
+        // Recursively compare objects (susceptible to call stack limits).
+        if (!(compared === undefined
+              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
+              : compared
+            )) {
+          result = false;
+          break;
+        }
+        skipCtor || (skipCtor = key == 'constructor');
+      }
+      if (result && !skipCtor) {
+        var objCtor = object.constructor,
+            othCtor = other.constructor;
+
+        // Non `Object` object instances with different constructors are not equal.
+        if (objCtor != othCtor &&
+            ('constructor' in object && 'constructor' in other) &&
+            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
+              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
+          result = false;
+        }
+      }
+      stack['delete'](object);
+      stack['delete'](other);
+      return result;
+    }
+
+    /**
+     * A specialized version of `baseRest` which flattens the rest array.
+     *
+     * @private
+     * @param {Function} func The function to apply a rest parameter to.
+     * @returns {Function} Returns the new function.
+     */
+    function flatRest(func) {
+      return setToString(overRest(func, undefined, flatten), func + '');
+    }
+
+    /**
+     * Creates an array of own enumerable property names and symbols of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names and symbols.
+     */
+    function getAllKeys(object) {
+      return baseGetAllKeys(object, keys, getSymbols);
+    }
+
+    /**
+     * Creates an array of own and inherited enumerable property names and
+     * symbols of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names and symbols.
+     */
+    function getAllKeysIn(object) {
+      return baseGetAllKeys(object, keysIn, getSymbolsIn);
+    }
+
+    /**
+     * Gets metadata for `func`.
+     *
+     * @private
+     * @param {Function} func The function to query.
+     * @returns {*} Returns the metadata for `func`.
+     */
+    var getData = !metaMap ? noop : function(func) {
+      return metaMap.get(func);
+    };
+
+    /**
+     * Gets the name of `func`.
+     *
+     * @private
+     * @param {Function} func The function to query.
+     * @returns {string} Returns the function name.
+     */
+    function getFuncName(func) {
+      var result = (func.name + ''),
+          array = realNames[result],
+          length = hasOwnProperty.call(realNames, result) ? array.length : 0;
+
+      while (length--) {
+        var data = array[length],
+            otherFunc = data.func;
+        if (otherFunc == null || otherFunc == func) {
+          return data.name;
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Gets the argument placeholder value for `func`.
+     *
+     * @private
+     * @param {Function} func The function to inspect.
+     * @returns {*} Returns the placeholder value.
+     */
+    function getHolder(func) {
+      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
+      return object.placeholder;
+    }
+
+    /**
+     * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
+     * this function returns the custom method, otherwise it returns `baseIteratee`.
+     * If arguments are provided, the chosen function is invoked with them and
+     * its result is returned.
+     *
+     * @private
+     * @param {*} [value] The value to convert to an iteratee.
+     * @param {number} [arity] The arity of the created iteratee.
+     * @returns {Function} Returns the chosen function or its result.
+     */
+    function getIteratee() {
+      var result = lodash.iteratee || iteratee;
+      result = result === iteratee ? baseIteratee : result;
+      return arguments.length ? result(arguments[0], arguments[1]) : result;
+    }
+
+    /**
+     * Gets the data for `map`.
+     *
+     * @private
+     * @param {Object} map The map to query.
+     * @param {string} key The reference key.
+     * @returns {*} Returns the map data.
+     */
+    function getMapData(map, key) {
+      var data = map.__data__;
+      return isKeyable(key)
+        ? data[typeof key == 'string' ? 'string' : 'hash']
+        : data.map;
+    }
+
+    /**
+     * Gets the property names, values, and compare flags of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the match data of `object`.
+     */
+    function getMatchData(object) {
+      var result = keys(object),
+          length = result.length;
+
+      while (length--) {
+        var key = result[length],
+            value = object[key];
+
+        result[length] = [key, value, isStrictComparable(value)];
+      }
+      return result;
+    }
+
+    /**
+     * Gets the native function at `key` of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @param {string} key The key of the method to get.
+     * @returns {*} Returns the function if it's native, else `undefined`.
+     */
+    function getNative(object, key) {
+      var value = getValue(object, key);
+      return baseIsNative(value) ? value : undefined;
+    }
+
+    /**
+     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
+     *
+     * @private
+     * @param {*} value The value to query.
+     * @returns {string} Returns the raw `toStringTag`.
+     */
+    function getRawTag(value) {
+      var isOwn = hasOwnProperty.call(value, symToStringTag),
+          tag = value[symToStringTag];
+
+      try {
+        value[symToStringTag] = undefined;
+        var unmasked = true;
+      } catch (e) {}
+
+      var result = nativeObjectToString.call(value);
+      if (unmasked) {
+        if (isOwn) {
+          value[symToStringTag] = tag;
+        } else {
+          delete value[symToStringTag];
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Creates an array of the own enumerable symbols of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of symbols.
+     */
+    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
+      if (object == null) {
+        return [];
+      }
+      object = Object(object);
+      return arrayFilter(nativeGetSymbols(object), function(symbol) {
+        return propertyIsEnumerable.call(object, symbol);
+      });
+    };
+
+    /**
+     * Creates an array of the own and inherited enumerable symbols of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of symbols.
+     */
+    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
+      var result = [];
+      while (object) {
+        arrayPush(result, getSymbols(object));
+        object = getPrototype(object);
+      }
+      return result;
+    };
+
+    /**
+     * Gets the `toStringTag` of `value`.
+     *
+     * @private
+     * @param {*} value The value to query.
+     * @returns {string} Returns the `toStringTag`.
+     */
+    var getTag = baseGetTag;
+
+    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
+    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
+        (Map && getTag(new Map) != mapTag) ||
+        (Promise && getTag(Promise.resolve()) != promiseTag) ||
+        (Set && getTag(new Set) != setTag) ||
+        (WeakMap && getTag(new WeakMap) != weakMapTag)) {
+      getTag = function(value) {
+        var result = baseGetTag(value),
+            Ctor = result == objectTag ? value.constructor : undefined,
+            ctorString = Ctor ? toSource(Ctor) : '';
+
+        if (ctorString) {
+          switch (ctorString) {
+            case dataViewCtorString: return dataViewTag;
+            case mapCtorString: return mapTag;
+            case promiseCtorString: return promiseTag;
+            case setCtorString: return setTag;
+            case weakMapCtorString: return weakMapTag;
+          }
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Gets the view, applying any `transforms` to the `start` and `end` positions.
+     *
+     * @private
+     * @param {number} start The start of the view.
+     * @param {number} end The end of the view.
+     * @param {Array} transforms The transformations to apply to the view.
+     * @returns {Object} Returns an object containing the `start` and `end`
+     *  positions of the view.
+     */
+    function getView(start, end, transforms) {
+      var index = -1,
+          length = transforms.length;
+
+      while (++index < length) {
+        var data = transforms[index],
+            size = data.size;
+
+        switch (data.type) {
+          case 'drop':      start += size; break;
+          case 'dropRight': end -= size; break;
+          case 'take':      end = nativeMin(end, start + size); break;
+          case 'takeRight': start = nativeMax(start, end - size); break;
+        }
+      }
+      return { 'start': start, 'end': end };
+    }
+
+    /**
+     * Extracts wrapper details from the `source` body comment.
+     *
+     * @private
+     * @param {string} source The source to inspect.
+     * @returns {Array} Returns the wrapper details.
+     */
+    function getWrapDetails(source) {
+      var match = source.match(reWrapDetails);
+      return match ? match[1].split(reSplitDetails) : [];
+    }
+
+    /**
+     * Checks if `path` exists on `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path to check.
+     * @param {Function} hasFunc The function to check properties.
+     * @returns {boolean} Returns `true` if `path` exists, else `false`.
+     */
+    function hasPath(object, path, hasFunc) {
+      path = castPath(path, object);
+
+      var index = -1,
+          length = path.length,
+          result = false;
+
+      while (++index < length) {
+        var key = toKey(path[index]);
+        if (!(result = object != null && hasFunc(object, key))) {
+          break;
+        }
+        object = object[key];
+      }
+      if (result || ++index != length) {
+        return result;
+      }
+      length = object == null ? 0 : object.length;
+      return !!length && isLength(length) && isIndex(key, length) &&
+        (isArray(object) || isArguments(object));
+    }
+
+    /**
+     * Initializes an array clone.
+     *
+     * @private
+     * @param {Array} array The array to clone.
+     * @returns {Array} Returns the initialized clone.
+     */
+    function initCloneArray(array) {
+      var length = array.length,
+          result = new array.constructor(length);
+
+      // Add properties assigned by `RegExp#exec`.
+      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
+        result.index = array.index;
+        result.input = array.input;
+      }
+      return result;
+    }
+
+    /**
+     * Initializes an object clone.
+     *
+     * @private
+     * @param {Object} object The object to clone.
+     * @returns {Object} Returns the initialized clone.
+     */
+    function initCloneObject(object) {
+      return (typeof object.constructor == 'function' && !isPrototype(object))
+        ? baseCreate(getPrototype(object))
+        : {};
+    }
+
+    /**
+     * Initializes an object clone based on its `toStringTag`.
+     *
+     * **Note:** This function only supports cloning values with tags of
+     * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
+     *
+     * @private
+     * @param {Object} object The object to clone.
+     * @param {string} tag The `toStringTag` of the object to clone.
+     * @param {boolean} [isDeep] Specify a deep clone.
+     * @returns {Object} Returns the initialized clone.
+     */
+    function initCloneByTag(object, tag, isDeep) {
+      var Ctor = object.constructor;
+      switch (tag) {
+        case arrayBufferTag:
+          return cloneArrayBuffer(object);
+
+        case boolTag:
+        case dateTag:
+          return new Ctor(+object);
+
+        case dataViewTag:
+          return cloneDataView(object, isDeep);
+
+        case float32Tag: case float64Tag:
+        case int8Tag: case int16Tag: case int32Tag:
+        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
+          return cloneTypedArray(object, isDeep);
+
+        case mapTag:
+          return new Ctor;
+
+        case numberTag:
+        case stringTag:
+          return new Ctor(object);
+
+        case regexpTag:
+          return cloneRegExp(object);
+
+        case setTag:
+          return new Ctor;
+
+        case symbolTag:
+          return cloneSymbol(object);
+      }
+    }
+
+    /**
+     * Inserts wrapper `details` in a comment at the top of the `source` body.
+     *
+     * @private
+     * @param {string} source The source to modify.
+     * @returns {Array} details The details to insert.
+     * @returns {string} Returns the modified source.
+     */
+    function insertWrapDetails(source, details) {
+      var length = details.length;
+      if (!length) {
+        return source;
+      }
+      var lastIndex = length - 1;
+      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
+      details = details.join(length > 2 ? ', ' : ' ');
+      return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
+    }
+
+    /**
+     * Checks if `value` is a flattenable `arguments` object or array.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
+     */
+    function isFlattenable(value) {
+      return isArray(value) || isArguments(value) ||
+        !!(spreadableSymbol && value && value[spreadableSymbol]);
+    }
+
+    /**
+     * Checks if `value` is a valid array-like index.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
+     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
+     */
+    function isIndex(value, length) {
+      var type = typeof value;
+      length = length == null ? MAX_SAFE_INTEGER : length;
+
+      return !!length &&
+        (type == 'number' ||
+          (type != 'symbol' && reIsUint.test(value))) &&
+            (value > -1 && value % 1 == 0 && value < length);
+    }
+
+    /**
+     * Checks if the given arguments are from an iteratee call.
+     *
+     * @private
+     * @param {*} value The potential iteratee value argument.
+     * @param {*} index The potential iteratee index or key argument.
+     * @param {*} object The potential iteratee object argument.
+     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
+     *  else `false`.
+     */
+    function isIterateeCall(value, index, object) {
+      if (!isObject(object)) {
+        return false;
+      }
+      var type = typeof index;
+      if (type == 'number'
+            ? (isArrayLike(object) && isIndex(index, object.length))
+            : (type == 'string' && index in object)
+          ) {
+        return eq(object[index], value);
+      }
+      return false;
+    }
+
+    /**
+     * Checks if `value` is a property name and not a property path.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @param {Object} [object] The object to query keys on.
+     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
+     */
+    function isKey(value, object) {
+      if (isArray(value)) {
+        return false;
+      }
+      var type = typeof value;
+      if (type == 'number' || type == 'symbol' || type == 'boolean' ||
+          value == null || isSymbol(value)) {
+        return true;
+      }
+      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
+        (object != null && value in Object(object));
+    }
+
+    /**
+     * Checks if `value` is suitable for use as unique object key.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
+     */
+    function isKeyable(value) {
+      var type = typeof value;
+      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
+        ? (value !== '__proto__')
+        : (value === null);
+    }
+
+    /**
+     * Checks if `func` has a lazy counterpart.
+     *
+     * @private
+     * @param {Function} func The function to check.
+     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
+     *  else `false`.
+     */
+    function isLaziable(func) {
+      var funcName = getFuncName(func),
+          other = lodash[funcName];
+
+      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
+        return false;
+      }
+      if (func === other) {
+        return true;
+      }
+      var data = getData(other);
+      return !!data && func === data[0];
+    }
+
+    /**
+     * Checks if `func` has its source masked.
+     *
+     * @private
+     * @param {Function} func The function to check.
+     * @returns {boolean} Returns `true` if `func` is masked, else `false`.
+     */
+    function isMasked(func) {
+      return !!maskSrcKey && (maskSrcKey in func);
+    }
+
+    /**
+     * Checks if `func` is capable of being masked.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
+     */
+    var isMaskable = coreJsData ? isFunction : stubFalse;
+
+    /**
+     * Checks if `value` is likely a prototype object.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
+     */
+    function isPrototype(value) {
+      var Ctor = value && value.constructor,
+          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
+
+      return value === proto;
+    }
+
+    /**
+     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` if suitable for strict
+     *  equality comparisons, else `false`.
+     */
+    function isStrictComparable(value) {
+      return value === value && !isObject(value);
+    }
+
+    /**
+     * A specialized version of `matchesProperty` for source values suitable
+     * for strict equality comparisons, i.e. `===`.
+     *
+     * @private
+     * @param {string} key The key of the property to get.
+     * @param {*} srcValue The value to match.
+     * @returns {Function} Returns the new spec function.
+     */
+    function matchesStrictComparable(key, srcValue) {
+      return function(object) {
+        if (object == null) {
+          return false;
+        }
+        return object[key] === srcValue &&
+          (srcValue !== undefined || (key in Object(object)));
+      };
+    }
+
+    /**
+     * A specialized version of `_.memoize` which clears the memoized function's
+     * cache when it exceeds `MAX_MEMOIZE_SIZE`.
+     *
+     * @private
+     * @param {Function} func The function to have its output memoized.
+     * @returns {Function} Returns the new memoized function.
+     */
+    function memoizeCapped(func) {
+      var result = memoize(func, function(key) {
+        if (cache.size === MAX_MEMOIZE_SIZE) {
+          cache.clear();
+        }
+        return key;
+      });
+
+      var cache = result.cache;
+      return result;
+    }
+
+    /**
+     * Merges the function metadata of `source` into `data`.
+     *
+     * Merging metadata reduces the number of wrappers used to invoke a function.
+     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
+     * may be applied regardless of execution order. Methods like `_.ary` and
+     * `_.rearg` modify function arguments, making the order in which they are
+     * executed important, preventing the merging of metadata. However, we make
+     * an exception for a safe combined case where curried functions have `_.ary`
+     * and or `_.rearg` applied.
+     *
+     * @private
+     * @param {Array} data The destination metadata.
+     * @param {Array} source The source metadata.
+     * @returns {Array} Returns `data`.
+     */
+    function mergeData(data, source) {
+      var bitmask = data[1],
+          srcBitmask = source[1],
+          newBitmask = bitmask | srcBitmask,
+          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);
+
+      var isCombo =
+        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
+        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
+        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));
+
+      // Exit early if metadata can't be merged.
+      if (!(isCommon || isCombo)) {
+        return data;
+      }
+      // Use source `thisArg` if available.
+      if (srcBitmask & WRAP_BIND_FLAG) {
+        data[2] = source[2];
+        // Set when currying a bound function.
+        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
+      }
+      // Compose partial arguments.
+      var value = source[3];
+      if (value) {
+        var partials = data[3];
+        data[3] = partials ? composeArgs(partials, value, source[4]) : value;
+        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
+      }
+      // Compose partial right arguments.
+      value = source[5];
+      if (value) {
+        partials = data[5];
+        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
+        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
+      }
+      // Use source `argPos` if available.
+      value = source[7];
+      if (value) {
+        data[7] = value;
+      }
+      // Use source `ary` if it's smaller.
+      if (srcBitmask & WRAP_ARY_FLAG) {
+        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
+      }
+      // Use source `arity` if one is not provided.
+      if (data[9] == null) {
+        data[9] = source[9];
+      }
+      // Use source `func` and merge bitmasks.
+      data[0] = source[0];
+      data[1] = newBitmask;
+
+      return data;
+    }
+
+    /**
+     * This function is like
+     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+     * except that it includes inherited enumerable properties.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names.
+     */
+    function nativeKeysIn(object) {
+      var result = [];
+      if (object != null) {
+        for (var key in Object(object)) {
+          result.push(key);
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Converts `value` to a string using `Object.prototype.toString`.
+     *
+     * @private
+     * @param {*} value The value to convert.
+     * @returns {string} Returns the converted string.
+     */
+    function objectToString(value) {
+      return nativeObjectToString.call(value);
+    }
+
+    /**
+     * A specialized version of `baseRest` which transforms the rest array.
+     *
+     * @private
+     * @param {Function} func The function to apply a rest parameter to.
+     * @param {number} [start=func.length-1] The start position of the rest parameter.
+     * @param {Function} transform The rest array transform.
+     * @returns {Function} Returns the new function.
+     */
+    function overRest(func, start, transform) {
+      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
+      return function() {
+        var args = arguments,
+            index = -1,
+            length = nativeMax(args.length - start, 0),
+            array = Array(length);
+
+        while (++index < length) {
+          array[index] = args[start + index];
+        }
+        index = -1;
+        var otherArgs = Array(start + 1);
+        while (++index < start) {
+          otherArgs[index] = args[index];
+        }
+        otherArgs[start] = transform(array);
+        return apply(func, this, otherArgs);
+      };
+    }
+
+    /**
+     * Gets the parent value at `path` of `object`.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @param {Array} path The path to get the parent value of.
+     * @returns {*} Returns the parent value.
+     */
+    function parent(object, path) {
+      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
+    }
+
+    /**
+     * Reorder `array` according to the specified indexes where the element at
+     * the first index is assigned as the first element, the element at
+     * the second index is assigned as the second element, and so on.
+     *
+     * @private
+     * @param {Array} array The array to reorder.
+     * @param {Array} indexes The arranged array indexes.
+     * @returns {Array} Returns `array`.
+     */
+    function reorder(array, indexes) {
+      var arrLength = array.length,
+          length = nativeMin(indexes.length, arrLength),
+          oldArray = copyArray(array);
+
+      while (length--) {
+        var index = indexes[length];
+        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
+      }
+      return array;
+    }
+
+    /**
+     * Sets metadata for `func`.
+     *
+     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
+     * period of time, it will trip its breaker and transition to an identity
+     * function to avoid garbage collection pauses in V8. See
+     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
+     * for more details.
+     *
+     * @private
+     * @param {Function} func The function to associate metadata with.
+     * @param {*} data The metadata.
+     * @returns {Function} Returns `func`.
+     */
+    var setData = shortOut(baseSetData);
+
+    /**
+     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
+     *
+     * @private
+     * @param {Function} func The function to delay.
+     * @param {number} wait The number of milliseconds to delay invocation.
+     * @returns {number|Object} Returns the timer id or timeout object.
+     */
+    var setTimeout = ctxSetTimeout || function(func, wait) {
+      return root.setTimeout(func, wait);
+    };
+
+    /**
+     * Sets the `toString` method of `func` to return `string`.
+     *
+     * @private
+     * @param {Function} func The function to modify.
+     * @param {Function} string The `toString` result.
+     * @returns {Function} Returns `func`.
+     */
+    var setToString = shortOut(baseSetToString);
+
+    /**
+     * Sets the `toString` method of `wrapper` to mimic the source of `reference`
+     * with wrapper details in a comment at the top of the source body.
+     *
+     * @private
+     * @param {Function} wrapper The function to modify.
+     * @param {Function} reference The reference function.
+     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+     * @returns {Function} Returns `wrapper`.
+     */
+    function setWrapToString(wrapper, reference, bitmask) {
+      var source = (reference + '');
+      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
+    }
+
+    /**
+     * Creates a function that'll short out and invoke `identity` instead
+     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
+     * milliseconds.
+     *
+     * @private
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new shortable function.
+     */
+    function shortOut(func) {
+      var count = 0,
+          lastCalled = 0;
+
+      return function() {
+        var stamp = nativeNow(),
+            remaining = HOT_SPAN - (stamp - lastCalled);
+
+        lastCalled = stamp;
+        if (remaining > 0) {
+          if (++count >= HOT_COUNT) {
+            return arguments[0];
+          }
+        } else {
+          count = 0;
+        }
+        return func.apply(undefined, arguments);
+      };
+    }
+
+    /**
+     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
+     *
+     * @private
+     * @param {Array} array The array to shuffle.
+     * @param {number} [size=array.length] The size of `array`.
+     * @returns {Array} Returns `array`.
+     */
+    function shuffleSelf(array, size) {
+      var index = -1,
+          length = array.length,
+          lastIndex = length - 1;
+
+      size = size === undefined ? length : size;
+      while (++index < size) {
+        var rand = baseRandom(index, lastIndex),
+            value = array[rand];
+
+        array[rand] = array[index];
+        array[index] = value;
+      }
+      array.length = size;
+      return array;
+    }
+
+    /**
+     * Converts `string` to a property path array.
+     *
+     * @private
+     * @param {string} string The string to convert.
+     * @returns {Array} Returns the property path array.
+     */
+    var stringToPath = memoizeCapped(function(string) {
+      var result = [];
+      if (string.charCodeAt(0) === 46 /* . */) {
+        result.push('');
+      }
+      string.replace(rePropName, function(match, number, quote, subString) {
+        result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));
+      });
+      return result;
+    });
+
+    /**
+     * Converts `value` to a string key if it's not a string or symbol.
+     *
+     * @private
+     * @param {*} value The value to inspect.
+     * @returns {string|symbol} Returns the key.
+     */
+    function toKey(value) {
+      if (typeof value == 'string' || isSymbol(value)) {
+        return value;
+      }
+      var result = (value + '');
+      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
+    }
+
+    /**
+     * Converts `func` to its source code.
+     *
+     * @private
+     * @param {Function} func The function to convert.
+     * @returns {string} Returns the source code.
+     */
+    function toSource(func) {
+      if (func != null) {
+        try {
+          return funcToString.call(func);
+        } catch (e) {}
+        try {
+          return (func + '');
+        } catch (e) {}
+      }
+      return '';
+    }
+
+    /**
+     * Updates wrapper `details` based on `bitmask` flags.
+     *
+     * @private
+     * @returns {Array} details The details to modify.
+     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+     * @returns {Array} Returns `details`.
+     */
+    function updateWrapDetails(details, bitmask) {
+      arrayEach(wrapFlags, function(pair) {
+        var value = '_.' + pair[0];
+        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
+          details.push(value);
+        }
+      });
+      return details.sort();
+    }
+
+    /**
+     * Creates a clone of `wrapper`.
+     *
+     * @private
+     * @param {Object} wrapper The wrapper to clone.
+     * @returns {Object} Returns the cloned wrapper.
+     */
+    function wrapperClone(wrapper) {
+      if (wrapper instanceof LazyWrapper) {
+        return wrapper.clone();
+      }
+      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
+      result.__actions__ = copyArray(wrapper.__actions__);
+      result.__index__  = wrapper.__index__;
+      result.__values__ = wrapper.__values__;
+      return result;
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates an array of elements split into groups the length of `size`.
+     * If `array` can't be split evenly, the final chunk will be the remaining
+     * elements.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to process.
+     * @param {number} [size=1] The length of each chunk
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Array} Returns the new array of chunks.
+     * @example
+     *
+     * _.chunk(['a', 'b', 'c', 'd'], 2);
+     * // => [['a', 'b'], ['c', 'd']]
+     *
+     * _.chunk(['a', 'b', 'c', 'd'], 3);
+     * // => [['a', 'b', 'c'], ['d']]
+     */
+    function chunk(array, size, guard) {
+      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
+        size = 1;
+      } else {
+        size = nativeMax(toInteger(size), 0);
+      }
+      var length = array == null ? 0 : array.length;
+      if (!length || size < 1) {
+        return [];
+      }
+      var index = 0,
+          resIndex = 0,
+          result = Array(nativeCeil(length / size));
+
+      while (index < length) {
+        result[resIndex++] = baseSlice(array, index, (index += size));
+      }
+      return result;
+    }
+
+    /**
+     * Creates an array with all falsey values removed. The values `false`, `null`,
+     * `0`, `""`, `undefined`, and `NaN` are falsey.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to compact.
+     * @returns {Array} Returns the new array of filtered values.
+     * @example
+     *
+     * _.compact([0, 1, false, 2, '', 3]);
+     * // => [1, 2, 3]
+     */
+    function compact(array) {
+      var index = -1,
+          length = array == null ? 0 : array.length,
+          resIndex = 0,
+          result = [];
+
+      while (++index < length) {
+        var value = array[index];
+        if (value) {
+          result[resIndex++] = value;
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Creates a new array concatenating `array` with any additional arrays
+     * and/or values.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to concatenate.
+     * @param {...*} [values] The values to concatenate.
+     * @returns {Array} Returns the new concatenated array.
+     * @example
+     *
+     * var array = [1];
+     * var other = _.concat(array, 2, [3], [[4]]);
+     *
+     * console.log(other);
+     * // => [1, 2, 3, [4]]
+     *
+     * console.log(array);
+     * // => [1]
+     */
+    function concat() {
+      var length = arguments.length;
+      if (!length) {
+        return [];
+      }
+      var args = Array(length - 1),
+          array = arguments[0],
+          index = length;
+
+      while (index--) {
+        args[index - 1] = arguments[index];
+      }
+      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
+    }
+
+    /**
+     * Creates an array of `array` values not included in the other given arrays
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons. The order and references of result values are
+     * determined by the first array.
+     *
+     * **Note:** Unlike `_.pullAll`, this method returns a new array.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {...Array} [values] The values to exclude.
+     * @returns {Array} Returns the new array of filtered values.
+     * @see _.without, _.xor
+     * @example
+     *
+     * _.difference([2, 1], [2, 3]);
+     * // => [1]
+     */
+    var difference = baseRest(function(array, values) {
+      return isArrayLikeObject(array)
+        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
+        : [];
+    });
+
+    /**
+     * This method is like `_.difference` except that it accepts `iteratee` which
+     * is invoked for each element of `array` and `values` to generate the criterion
+     * by which they're compared. The order and references of result values are
+     * determined by the first array. The iteratee is invoked with one argument:
+     * (value).
+     *
+     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {...Array} [values] The values to exclude.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {Array} Returns the new array of filtered values.
+     * @example
+     *
+     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+     * // => [1.2]
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
+     * // => [{ 'x': 2 }]
+     */
+    var differenceBy = baseRest(function(array, values) {
+      var iteratee = last(values);
+      if (isArrayLikeObject(iteratee)) {
+        iteratee = undefined;
+      }
+      return isArrayLikeObject(array)
+        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
+        : [];
+    });
+
+    /**
+     * This method is like `_.difference` except that it accepts `comparator`
+     * which is invoked to compare elements of `array` to `values`. The order and
+     * references of result values are determined by the first array. The comparator
+     * is invoked with two arguments: (arrVal, othVal).
+     *
+     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {...Array} [values] The values to exclude.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new array of filtered values.
+     * @example
+     *
+     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+     *
+     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
+     * // => [{ 'x': 2, 'y': 1 }]
+     */
+    var differenceWith = baseRest(function(array, values) {
+      var comparator = last(values);
+      if (isArrayLikeObject(comparator)) {
+        comparator = undefined;
+      }
+      return isArrayLikeObject(array)
+        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
+        : [];
+    });
+
+    /**
+     * Creates a slice of `array` with `n` elements dropped from the beginning.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.5.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {number} [n=1] The number of elements to drop.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * _.drop([1, 2, 3]);
+     * // => [2, 3]
+     *
+     * _.drop([1, 2, 3], 2);
+     * // => [3]
+     *
+     * _.drop([1, 2, 3], 5);
+     * // => []
+     *
+     * _.drop([1, 2, 3], 0);
+     * // => [1, 2, 3]
+     */
+    function drop(array, n, guard) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return [];
+      }
+      n = (guard || n === undefined) ? 1 : toInteger(n);
+      return baseSlice(array, n < 0 ? 0 : n, length);
+    }
+
+    /**
+     * Creates a slice of `array` with `n` elements dropped from the end.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {number} [n=1] The number of elements to drop.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * _.dropRight([1, 2, 3]);
+     * // => [1, 2]
+     *
+     * _.dropRight([1, 2, 3], 2);
+     * // => [1]
+     *
+     * _.dropRight([1, 2, 3], 5);
+     * // => []
+     *
+     * _.dropRight([1, 2, 3], 0);
+     * // => [1, 2, 3]
+     */
+    function dropRight(array, n, guard) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return [];
+      }
+      n = (guard || n === undefined) ? 1 : toInteger(n);
+      n = length - n;
+      return baseSlice(array, 0, n < 0 ? 0 : n);
+    }
+
+    /**
+     * Creates a slice of `array` excluding elements dropped from the end.
+     * Elements are dropped until `predicate` returns falsey. The predicate is
+     * invoked with three arguments: (value, index, array).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'active': true },
+     *   { 'user': 'fred',    'active': false },
+     *   { 'user': 'pebbles', 'active': false }
+     * ];
+     *
+     * _.dropRightWhile(users, function(o) { return !o.active; });
+     * // => objects for ['barney']
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
+     * // => objects for ['barney', 'fred']
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.dropRightWhile(users, ['active', false]);
+     * // => objects for ['barney']
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.dropRightWhile(users, 'active');
+     * // => objects for ['barney', 'fred', 'pebbles']
+     */
+    function dropRightWhile(array, predicate) {
+      return (array && array.length)
+        ? baseWhile(array, getIteratee(predicate, 3), true, true)
+        : [];
+    }
+
+    /**
+     * Creates a slice of `array` excluding elements dropped from the beginning.
+     * Elements are dropped until `predicate` returns falsey. The predicate is
+     * invoked with three arguments: (value, index, array).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'active': false },
+     *   { 'user': 'fred',    'active': false },
+     *   { 'user': 'pebbles', 'active': true }
+     * ];
+     *
+     * _.dropWhile(users, function(o) { return !o.active; });
+     * // => objects for ['pebbles']
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.dropWhile(users, { 'user': 'barney', 'active': false });
+     * // => objects for ['fred', 'pebbles']
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.dropWhile(users, ['active', false]);
+     * // => objects for ['pebbles']
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.dropWhile(users, 'active');
+     * // => objects for ['barney', 'fred', 'pebbles']
+     */
+    function dropWhile(array, predicate) {
+      return (array && array.length)
+        ? baseWhile(array, getIteratee(predicate, 3), true)
+        : [];
+    }
+
+    /**
+     * Fills elements of `array` with `value` from `start` up to, but not
+     * including, `end`.
+     *
+     * **Note:** This method mutates `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.2.0
+     * @category Array
+     * @param {Array} array The array to fill.
+     * @param {*} value The value to fill `array` with.
+     * @param {number} [start=0] The start position.
+     * @param {number} [end=array.length] The end position.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = [1, 2, 3];
+     *
+     * _.fill(array, 'a');
+     * console.log(array);
+     * // => ['a', 'a', 'a']
+     *
+     * _.fill(Array(3), 2);
+     * // => [2, 2, 2]
+     *
+     * _.fill([4, 6, 8, 10], '*', 1, 3);
+     * // => [4, '*', '*', 10]
+     */
+    function fill(array, value, start, end) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return [];
+      }
+      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
+        start = 0;
+        end = length;
+      }
+      return baseFill(array, value, start, end);
+    }
+
+    /**
+     * This method is like `_.find` except that it returns the index of the first
+     * element `predicate` returns truthy for instead of the element itself.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.1.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @param {number} [fromIndex=0] The index to search from.
+     * @returns {number} Returns the index of the found element, else `-1`.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'active': false },
+     *   { 'user': 'fred',    'active': false },
+     *   { 'user': 'pebbles', 'active': true }
+     * ];
+     *
+     * _.findIndex(users, function(o) { return o.user == 'barney'; });
+     * // => 0
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.findIndex(users, { 'user': 'fred', 'active': false });
+     * // => 1
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.findIndex(users, ['active', false]);
+     * // => 0
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.findIndex(users, 'active');
+     * // => 2
+     */
+    function findIndex(array, predicate, fromIndex) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return -1;
+      }
+      var index = fromIndex == null ? 0 : toInteger(fromIndex);
+      if (index < 0) {
+        index = nativeMax(length + index, 0);
+      }
+      return baseFindIndex(array, getIteratee(predicate, 3), index);
+    }
+
+    /**
+     * This method is like `_.findIndex` except that it iterates over elements
+     * of `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @param {number} [fromIndex=array.length-1] The index to search from.
+     * @returns {number} Returns the index of the found element, else `-1`.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'active': true },
+     *   { 'user': 'fred',    'active': false },
+     *   { 'user': 'pebbles', 'active': false }
+     * ];
+     *
+     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
+     * // => 2
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
+     * // => 0
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.findLastIndex(users, ['active', false]);
+     * // => 2
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.findLastIndex(users, 'active');
+     * // => 0
+     */
+    function findLastIndex(array, predicate, fromIndex) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return -1;
+      }
+      var index = length - 1;
+      if (fromIndex !== undefined) {
+        index = toInteger(fromIndex);
+        index = fromIndex < 0
+          ? nativeMax(length + index, 0)
+          : nativeMin(index, length - 1);
+      }
+      return baseFindIndex(array, getIteratee(predicate, 3), index, true);
+    }
+
+    /**
+     * Flattens `array` a single level deep.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to flatten.
+     * @returns {Array} Returns the new flattened array.
+     * @example
+     *
+     * _.flatten([1, [2, [3, [4]], 5]]);
+     * // => [1, 2, [3, [4]], 5]
+     */
+    function flatten(array) {
+      var length = array == null ? 0 : array.length;
+      return length ? baseFlatten(array, 1) : [];
+    }
+
+    /**
+     * Recursively flattens `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to flatten.
+     * @returns {Array} Returns the new flattened array.
+     * @example
+     *
+     * _.flattenDeep([1, [2, [3, [4]], 5]]);
+     * // => [1, 2, 3, 4, 5]
+     */
+    function flattenDeep(array) {
+      var length = array == null ? 0 : array.length;
+      return length ? baseFlatten(array, INFINITY) : [];
+    }
+
+    /**
+     * Recursively flatten `array` up to `depth` times.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.4.0
+     * @category Array
+     * @param {Array} array The array to flatten.
+     * @param {number} [depth=1] The maximum recursion depth.
+     * @returns {Array} Returns the new flattened array.
+     * @example
+     *
+     * var array = [1, [2, [3, [4]], 5]];
+     *
+     * _.flattenDepth(array, 1);
+     * // => [1, 2, [3, [4]], 5]
+     *
+     * _.flattenDepth(array, 2);
+     * // => [1, 2, 3, [4], 5]
+     */
+    function flattenDepth(array, depth) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return [];
+      }
+      depth = depth === undefined ? 1 : toInteger(depth);
+      return baseFlatten(array, depth);
+    }
+
+    /**
+     * The inverse of `_.toPairs`; this method returns an object composed
+     * from key-value `pairs`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} pairs The key-value pairs.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * _.fromPairs([['a', 1], ['b', 2]]);
+     * // => { 'a': 1, 'b': 2 }
+     */
+    function fromPairs(pairs) {
+      var index = -1,
+          length = pairs == null ? 0 : pairs.length,
+          result = {};
+
+      while (++index < length) {
+        var pair = pairs[index];
+        result[pair[0]] = pair[1];
+      }
+      return result;
+    }
+
+    /**
+     * Gets the first element of `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @alias first
+     * @category Array
+     * @param {Array} array The array to query.
+     * @returns {*} Returns the first element of `array`.
+     * @example
+     *
+     * _.head([1, 2, 3]);
+     * // => 1
+     *
+     * _.head([]);
+     * // => undefined
+     */
+    function head(array) {
+      return (array && array.length) ? array[0] : undefined;
+    }
+
+    /**
+     * Gets the index at which the first occurrence of `value` is found in `array`
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons. If `fromIndex` is negative, it's used as the
+     * offset from the end of `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {*} value The value to search for.
+     * @param {number} [fromIndex=0] The index to search from.
+     * @returns {number} Returns the index of the matched value, else `-1`.
+     * @example
+     *
+     * _.indexOf([1, 2, 1, 2], 2);
+     * // => 1
+     *
+     * // Search from the `fromIndex`.
+     * _.indexOf([1, 2, 1, 2], 2, 2);
+     * // => 3
+     */
+    function indexOf(array, value, fromIndex) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return -1;
+      }
+      var index = fromIndex == null ? 0 : toInteger(fromIndex);
+      if (index < 0) {
+        index = nativeMax(length + index, 0);
+      }
+      return baseIndexOf(array, value, index);
+    }
+
+    /**
+     * Gets all but the last element of `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * _.initial([1, 2, 3]);
+     * // => [1, 2]
+     */
+    function initial(array) {
+      var length = array == null ? 0 : array.length;
+      return length ? baseSlice(array, 0, -1) : [];
+    }
+
+    /**
+     * Creates an array of unique values that are included in all given arrays
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons. The order and references of result values are
+     * determined by the first array.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @returns {Array} Returns the new array of intersecting values.
+     * @example
+     *
+     * _.intersection([2, 1], [2, 3]);
+     * // => [2]
+     */
+    var intersection = baseRest(function(arrays) {
+      var mapped = arrayMap(arrays, castArrayLikeObject);
+      return (mapped.length && mapped[0] === arrays[0])
+        ? baseIntersection(mapped)
+        : [];
+    });
+
+    /**
+     * This method is like `_.intersection` except that it accepts `iteratee`
+     * which is invoked for each element of each `arrays` to generate the criterion
+     * by which they're compared. The order and references of result values are
+     * determined by the first array. The iteratee is invoked with one argument:
+     * (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {Array} Returns the new array of intersecting values.
+     * @example
+     *
+     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+     * // => [2.1]
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
+     * // => [{ 'x': 1 }]
+     */
+    var intersectionBy = baseRest(function(arrays) {
+      var iteratee = last(arrays),
+          mapped = arrayMap(arrays, castArrayLikeObject);
+
+      if (iteratee === last(mapped)) {
+        iteratee = undefined;
+      } else {
+        mapped.pop();
+      }
+      return (mapped.length && mapped[0] === arrays[0])
+        ? baseIntersection(mapped, getIteratee(iteratee, 2))
+        : [];
+    });
+
+    /**
+     * This method is like `_.intersection` except that it accepts `comparator`
+     * which is invoked to compare elements of `arrays`. The order and references
+     * of result values are determined by the first array. The comparator is
+     * invoked with two arguments: (arrVal, othVal).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new array of intersecting values.
+     * @example
+     *
+     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
+     *
+     * _.intersectionWith(objects, others, _.isEqual);
+     * // => [{ 'x': 1, 'y': 2 }]
+     */
+    var intersectionWith = baseRest(function(arrays) {
+      var comparator = last(arrays),
+          mapped = arrayMap(arrays, castArrayLikeObject);
+
+      comparator = typeof comparator == 'function' ? comparator : undefined;
+      if (comparator) {
+        mapped.pop();
+      }
+      return (mapped.length && mapped[0] === arrays[0])
+        ? baseIntersection(mapped, undefined, comparator)
+        : [];
+    });
+
+    /**
+     * Converts all elements in `array` into a string separated by `separator`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to convert.
+     * @param {string} [separator=','] The element separator.
+     * @returns {string} Returns the joined string.
+     * @example
+     *
+     * _.join(['a', 'b', 'c'], '~');
+     * // => 'a~b~c'
+     */
+    function join(array, separator) {
+      return array == null ? '' : nativeJoin.call(array, separator);
+    }
+
+    /**
+     * Gets the last element of `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @returns {*} Returns the last element of `array`.
+     * @example
+     *
+     * _.last([1, 2, 3]);
+     * // => 3
+     */
+    function last(array) {
+      var length = array == null ? 0 : array.length;
+      return length ? array[length - 1] : undefined;
+    }
+
+    /**
+     * This method is like `_.indexOf` except that it iterates over elements of
+     * `array` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {*} value The value to search for.
+     * @param {number} [fromIndex=array.length-1] The index to search from.
+     * @returns {number} Returns the index of the matched value, else `-1`.
+     * @example
+     *
+     * _.lastIndexOf([1, 2, 1, 2], 2);
+     * // => 3
+     *
+     * // Search from the `fromIndex`.
+     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
+     * // => 1
+     */
+    function lastIndexOf(array, value, fromIndex) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return -1;
+      }
+      var index = length;
+      if (fromIndex !== undefined) {
+        index = toInteger(fromIndex);
+        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
+      }
+      return value === value
+        ? strictLastIndexOf(array, value, index)
+        : baseFindIndex(array, baseIsNaN, index, true);
+    }
+
+    /**
+     * Gets the element at index `n` of `array`. If `n` is negative, the nth
+     * element from the end is returned.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.11.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {number} [n=0] The index of the element to return.
+     * @returns {*} Returns the nth element of `array`.
+     * @example
+     *
+     * var array = ['a', 'b', 'c', 'd'];
+     *
+     * _.nth(array, 1);
+     * // => 'b'
+     *
+     * _.nth(array, -2);
+     * // => 'c';
+     */
+    function nth(array, n) {
+      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
+    }
+
+    /**
+     * Removes all given values from `array` using
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons.
+     *
+     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
+     * to remove elements from an array by predicate.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Array
+     * @param {Array} array The array to modify.
+     * @param {...*} [values] The values to remove.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
+     *
+     * _.pull(array, 'a', 'c');
+     * console.log(array);
+     * // => ['b', 'b']
+     */
+    var pull = baseRest(pullAll);
+
+    /**
+     * This method is like `_.pull` except that it accepts an array of values to remove.
+     *
+     * **Note:** Unlike `_.difference`, this method mutates `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to modify.
+     * @param {Array} values The values to remove.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
+     *
+     * _.pullAll(array, ['a', 'c']);
+     * console.log(array);
+     * // => ['b', 'b']
+     */
+    function pullAll(array, values) {
+      return (array && array.length && values && values.length)
+        ? basePullAll(array, values)
+        : array;
+    }
+
+    /**
+     * This method is like `_.pullAll` except that it accepts `iteratee` which is
+     * invoked for each element of `array` and `values` to generate the criterion
+     * by which they're compared. The iteratee is invoked with one argument: (value).
+     *
+     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to modify.
+     * @param {Array} values The values to remove.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
+     *
+     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
+     * console.log(array);
+     * // => [{ 'x': 2 }]
+     */
+    function pullAllBy(array, values, iteratee) {
+      return (array && array.length && values && values.length)
+        ? basePullAll(array, values, getIteratee(iteratee, 2))
+        : array;
+    }
+
+    /**
+     * This method is like `_.pullAll` except that it accepts `comparator` which
+     * is invoked to compare elements of `array` to `values`. The comparator is
+     * invoked with two arguments: (arrVal, othVal).
+     *
+     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.6.0
+     * @category Array
+     * @param {Array} array The array to modify.
+     * @param {Array} values The values to remove.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
+     *
+     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
+     * console.log(array);
+     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
+     */
+    function pullAllWith(array, values, comparator) {
+      return (array && array.length && values && values.length)
+        ? basePullAll(array, values, undefined, comparator)
+        : array;
+    }
+
+    /**
+     * Removes elements from `array` corresponding to `indexes` and returns an
+     * array of removed elements.
+     *
+     * **Note:** Unlike `_.at`, this method mutates `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to modify.
+     * @param {...(number|number[])} [indexes] The indexes of elements to remove.
+     * @returns {Array} Returns the new array of removed elements.
+     * @example
+     *
+     * var array = ['a', 'b', 'c', 'd'];
+     * var pulled = _.pullAt(array, [1, 3]);
+     *
+     * console.log(array);
+     * // => ['a', 'c']
+     *
+     * console.log(pulled);
+     * // => ['b', 'd']
+     */
+    var pullAt = flatRest(function(array, indexes) {
+      var length = array == null ? 0 : array.length,
+          result = baseAt(array, indexes);
+
+      basePullAt(array, arrayMap(indexes, function(index) {
+        return isIndex(index, length) ? +index : index;
+      }).sort(compareAscending));
+
+      return result;
+    });
+
+    /**
+     * Removes all elements from `array` that `predicate` returns truthy for
+     * and returns an array of the removed elements. The predicate is invoked
+     * with three arguments: (value, index, array).
+     *
+     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
+     * to pull elements from an array by value.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Array
+     * @param {Array} array The array to modify.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the new array of removed elements.
+     * @example
+     *
+     * var array = [1, 2, 3, 4];
+     * var evens = _.remove(array, function(n) {
+     *   return n % 2 == 0;
+     * });
+     *
+     * console.log(array);
+     * // => [1, 3]
+     *
+     * console.log(evens);
+     * // => [2, 4]
+     */
+    function remove(array, predicate) {
+      var result = [];
+      if (!(array && array.length)) {
+        return result;
+      }
+      var index = -1,
+          indexes = [],
+          length = array.length;
+
+      predicate = getIteratee(predicate, 3);
+      while (++index < length) {
+        var value = array[index];
+        if (predicate(value, index, array)) {
+          result.push(value);
+          indexes.push(index);
+        }
+      }
+      basePullAt(array, indexes);
+      return result;
+    }
+
+    /**
+     * Reverses `array` so that the first element becomes the last, the second
+     * element becomes the second to last, and so on.
+     *
+     * **Note:** This method mutates `array` and is based on
+     * [`Array#reverse`](https://mdn.io/Array/reverse).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to modify.
+     * @returns {Array} Returns `array`.
+     * @example
+     *
+     * var array = [1, 2, 3];
+     *
+     * _.reverse(array);
+     * // => [3, 2, 1]
+     *
+     * console.log(array);
+     * // => [3, 2, 1]
+     */
+    function reverse(array) {
+      return array == null ? array : nativeReverse.call(array);
+    }
+
+    /**
+     * Creates a slice of `array` from `start` up to, but not including, `end`.
+     *
+     * **Note:** This method is used instead of
+     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
+     * returned.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to slice.
+     * @param {number} [start=0] The start position.
+     * @param {number} [end=array.length] The end position.
+     * @returns {Array} Returns the slice of `array`.
+     */
+    function slice(array, start, end) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return [];
+      }
+      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
+        start = 0;
+        end = length;
+      }
+      else {
+        start = start == null ? 0 : toInteger(start);
+        end = end === undefined ? length : toInteger(end);
+      }
+      return baseSlice(array, start, end);
+    }
+
+    /**
+     * Uses a binary search to determine the lowest index at which `value`
+     * should be inserted into `array` in order to maintain its sort order.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The sorted array to inspect.
+     * @param {*} value The value to evaluate.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     * @example
+     *
+     * _.sortedIndex([30, 50], 40);
+     * // => 1
+     */
+    function sortedIndex(array, value) {
+      return baseSortedIndex(array, value);
+    }
+
+    /**
+     * This method is like `_.sortedIndex` except that it accepts `iteratee`
+     * which is invoked for `value` and each element of `array` to compute their
+     * sort ranking. The iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The sorted array to inspect.
+     * @param {*} value The value to evaluate.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     * @example
+     *
+     * var objects = [{ 'x': 4 }, { 'x': 5 }];
+     *
+     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
+     * // => 0
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
+     * // => 0
+     */
+    function sortedIndexBy(array, value, iteratee) {
+      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
+    }
+
+    /**
+     * This method is like `_.indexOf` except that it performs a binary
+     * search on a sorted `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {*} value The value to search for.
+     * @returns {number} Returns the index of the matched value, else `-1`.
+     * @example
+     *
+     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
+     * // => 1
+     */
+    function sortedIndexOf(array, value) {
+      var length = array == null ? 0 : array.length;
+      if (length) {
+        var index = baseSortedIndex(array, value);
+        if (index < length && eq(array[index], value)) {
+          return index;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * This method is like `_.sortedIndex` except that it returns the highest
+     * index at which `value` should be inserted into `array` in order to
+     * maintain its sort order.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The sorted array to inspect.
+     * @param {*} value The value to evaluate.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     * @example
+     *
+     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
+     * // => 4
+     */
+    function sortedLastIndex(array, value) {
+      return baseSortedIndex(array, value, true);
+    }
+
+    /**
+     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
+     * which is invoked for `value` and each element of `array` to compute their
+     * sort ranking. The iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The sorted array to inspect.
+     * @param {*} value The value to evaluate.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {number} Returns the index at which `value` should be inserted
+     *  into `array`.
+     * @example
+     *
+     * var objects = [{ 'x': 4 }, { 'x': 5 }];
+     *
+     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
+     * // => 1
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
+     * // => 1
+     */
+    function sortedLastIndexBy(array, value, iteratee) {
+      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
+    }
+
+    /**
+     * This method is like `_.lastIndexOf` except that it performs a binary
+     * search on a sorted `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {*} value The value to search for.
+     * @returns {number} Returns the index of the matched value, else `-1`.
+     * @example
+     *
+     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
+     * // => 3
+     */
+    function sortedLastIndexOf(array, value) {
+      var length = array == null ? 0 : array.length;
+      if (length) {
+        var index = baseSortedIndex(array, value, true) - 1;
+        if (eq(array[index], value)) {
+          return index;
+        }
+      }
+      return -1;
+    }
+
+    /**
+     * This method is like `_.uniq` except that it's designed and optimized
+     * for sorted arrays.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @returns {Array} Returns the new duplicate free array.
+     * @example
+     *
+     * _.sortedUniq([1, 1, 2]);
+     * // => [1, 2]
+     */
+    function sortedUniq(array) {
+      return (array && array.length)
+        ? baseSortedUniq(array)
+        : [];
+    }
+
+    /**
+     * This method is like `_.uniqBy` except that it's designed and optimized
+     * for sorted arrays.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {Function} [iteratee] The iteratee invoked per element.
+     * @returns {Array} Returns the new duplicate free array.
+     * @example
+     *
+     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
+     * // => [1.1, 2.3]
+     */
+    function sortedUniqBy(array, iteratee) {
+      return (array && array.length)
+        ? baseSortedUniq(array, getIteratee(iteratee, 2))
+        : [];
+    }
+
+    /**
+     * Gets all but the first element of `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * _.tail([1, 2, 3]);
+     * // => [2, 3]
+     */
+    function tail(array) {
+      var length = array == null ? 0 : array.length;
+      return length ? baseSlice(array, 1, length) : [];
+    }
+
+    /**
+     * Creates a slice of `array` with `n` elements taken from the beginning.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {number} [n=1] The number of elements to take.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * _.take([1, 2, 3]);
+     * // => [1]
+     *
+     * _.take([1, 2, 3], 2);
+     * // => [1, 2]
+     *
+     * _.take([1, 2, 3], 5);
+     * // => [1, 2, 3]
+     *
+     * _.take([1, 2, 3], 0);
+     * // => []
+     */
+    function take(array, n, guard) {
+      if (!(array && array.length)) {
+        return [];
+      }
+      n = (guard || n === undefined) ? 1 : toInteger(n);
+      return baseSlice(array, 0, n < 0 ? 0 : n);
+    }
+
+    /**
+     * Creates a slice of `array` with `n` elements taken from the end.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {number} [n=1] The number of elements to take.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * _.takeRight([1, 2, 3]);
+     * // => [3]
+     *
+     * _.takeRight([1, 2, 3], 2);
+     * // => [2, 3]
+     *
+     * _.takeRight([1, 2, 3], 5);
+     * // => [1, 2, 3]
+     *
+     * _.takeRight([1, 2, 3], 0);
+     * // => []
+     */
+    function takeRight(array, n, guard) {
+      var length = array == null ? 0 : array.length;
+      if (!length) {
+        return [];
+      }
+      n = (guard || n === undefined) ? 1 : toInteger(n);
+      n = length - n;
+      return baseSlice(array, n < 0 ? 0 : n, length);
+    }
+
+    /**
+     * Creates a slice of `array` with elements taken from the end. Elements are
+     * taken until `predicate` returns falsey. The predicate is invoked with
+     * three arguments: (value, index, array).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'active': true },
+     *   { 'user': 'fred',    'active': false },
+     *   { 'user': 'pebbles', 'active': false }
+     * ];
+     *
+     * _.takeRightWhile(users, function(o) { return !o.active; });
+     * // => objects for ['fred', 'pebbles']
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
+     * // => objects for ['pebbles']
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.takeRightWhile(users, ['active', false]);
+     * // => objects for ['fred', 'pebbles']
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.takeRightWhile(users, 'active');
+     * // => []
+     */
+    function takeRightWhile(array, predicate) {
+      return (array && array.length)
+        ? baseWhile(array, getIteratee(predicate, 3), false, true)
+        : [];
+    }
+
+    /**
+     * Creates a slice of `array` with elements taken from the beginning. Elements
+     * are taken until `predicate` returns falsey. The predicate is invoked with
+     * three arguments: (value, index, array).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Array
+     * @param {Array} array The array to query.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the slice of `array`.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'active': false },
+     *   { 'user': 'fred',    'active': false },
+     *   { 'user': 'pebbles', 'active': true }
+     * ];
+     *
+     * _.takeWhile(users, function(o) { return !o.active; });
+     * // => objects for ['barney', 'fred']
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.takeWhile(users, { 'user': 'barney', 'active': false });
+     * // => objects for ['barney']
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.takeWhile(users, ['active', false]);
+     * // => objects for ['barney', 'fred']
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.takeWhile(users, 'active');
+     * // => []
+     */
+    function takeWhile(array, predicate) {
+      return (array && array.length)
+        ? baseWhile(array, getIteratee(predicate, 3))
+        : [];
+    }
+
+    /**
+     * Creates an array of unique values, in order, from all given arrays using
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @returns {Array} Returns the new array of combined values.
+     * @example
+     *
+     * _.union([2], [1, 2]);
+     * // => [2, 1]
+     */
+    var union = baseRest(function(arrays) {
+      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
+    });
+
+    /**
+     * This method is like `_.union` except that it accepts `iteratee` which is
+     * invoked for each element of each `arrays` to generate the criterion by
+     * which uniqueness is computed. Result values are chosen from the first
+     * array in which the value occurs. The iteratee is invoked with one argument:
+     * (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {Array} Returns the new array of combined values.
+     * @example
+     *
+     * _.unionBy([2.1], [1.2, 2.3], Math.floor);
+     * // => [2.1, 1.2]
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
+     * // => [{ 'x': 1 }, { 'x': 2 }]
+     */
+    var unionBy = baseRest(function(arrays) {
+      var iteratee = last(arrays);
+      if (isArrayLikeObject(iteratee)) {
+        iteratee = undefined;
+      }
+      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
+    });
+
+    /**
+     * This method is like `_.union` except that it accepts `comparator` which
+     * is invoked to compare elements of `arrays`. Result values are chosen from
+     * the first array in which the value occurs. The comparator is invoked
+     * with two arguments: (arrVal, othVal).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new array of combined values.
+     * @example
+     *
+     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
+     *
+     * _.unionWith(objects, others, _.isEqual);
+     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
+     */
+    var unionWith = baseRest(function(arrays) {
+      var comparator = last(arrays);
+      comparator = typeof comparator == 'function' ? comparator : undefined;
+      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
+    });
+
+    /**
+     * Creates a duplicate-free version of an array, using
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons, in which only the first occurrence of each element
+     * is kept. The order of result values is determined by the order they occur
+     * in the array.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @returns {Array} Returns the new duplicate free array.
+     * @example
+     *
+     * _.uniq([2, 1, 2]);
+     * // => [2, 1]
+     */
+    function uniq(array) {
+      return (array && array.length) ? baseUniq(array) : [];
+    }
+
+    /**
+     * This method is like `_.uniq` except that it accepts `iteratee` which is
+     * invoked for each element in `array` to generate the criterion by which
+     * uniqueness is computed. The order of result values is determined by the
+     * order they occur in the array. The iteratee is invoked with one argument:
+     * (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {Array} Returns the new duplicate free array.
+     * @example
+     *
+     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
+     * // => [2.1, 1.2]
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
+     * // => [{ 'x': 1 }, { 'x': 2 }]
+     */
+    function uniqBy(array, iteratee) {
+      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
+    }
+
+    /**
+     * This method is like `_.uniq` except that it accepts `comparator` which
+     * is invoked to compare elements of `array`. The order of result values is
+     * determined by the order they occur in the array.The comparator is invoked
+     * with two arguments: (arrVal, othVal).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new duplicate free array.
+     * @example
+     *
+     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
+     *
+     * _.uniqWith(objects, _.isEqual);
+     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
+     */
+    function uniqWith(array, comparator) {
+      comparator = typeof comparator == 'function' ? comparator : undefined;
+      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
+    }
+
+    /**
+     * This method is like `_.zip` except that it accepts an array of grouped
+     * elements and creates an array regrouping the elements to their pre-zip
+     * configuration.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.2.0
+     * @category Array
+     * @param {Array} array The array of grouped elements to process.
+     * @returns {Array} Returns the new array of regrouped elements.
+     * @example
+     *
+     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
+     * // => [['a', 1, true], ['b', 2, false]]
+     *
+     * _.unzip(zipped);
+     * // => [['a', 'b'], [1, 2], [true, false]]
+     */
+    function unzip(array) {
+      if (!(array && array.length)) {
+        return [];
+      }
+      var length = 0;
+      array = arrayFilter(array, function(group) {
+        if (isArrayLikeObject(group)) {
+          length = nativeMax(group.length, length);
+          return true;
+        }
+      });
+      return baseTimes(length, function(index) {
+        return arrayMap(array, baseProperty(index));
+      });
+    }
+
+    /**
+     * This method is like `_.unzip` except that it accepts `iteratee` to specify
+     * how regrouped values should be combined. The iteratee is invoked with the
+     * elements of each group: (...group).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.8.0
+     * @category Array
+     * @param {Array} array The array of grouped elements to process.
+     * @param {Function} [iteratee=_.identity] The function to combine
+     *  regrouped values.
+     * @returns {Array} Returns the new array of regrouped elements.
+     * @example
+     *
+     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
+     * // => [[1, 10, 100], [2, 20, 200]]
+     *
+     * _.unzipWith(zipped, _.add);
+     * // => [3, 30, 300]
+     */
+    function unzipWith(array, iteratee) {
+      if (!(array && array.length)) {
+        return [];
+      }
+      var result = unzip(array);
+      if (iteratee == null) {
+        return result;
+      }
+      return arrayMap(result, function(group) {
+        return apply(iteratee, undefined, group);
+      });
+    }
+
+    /**
+     * Creates an array excluding all given values using
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * for equality comparisons.
+     *
+     * **Note:** Unlike `_.pull`, this method returns a new array.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {Array} array The array to inspect.
+     * @param {...*} [values] The values to exclude.
+     * @returns {Array} Returns the new array of filtered values.
+     * @see _.difference, _.xor
+     * @example
+     *
+     * _.without([2, 1, 2, 3], 1, 2);
+     * // => [3]
+     */
+    var without = baseRest(function(array, values) {
+      return isArrayLikeObject(array)
+        ? baseDifference(array, values)
+        : [];
+    });
+
+    /**
+     * Creates an array of unique values that is the
+     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
+     * of the given arrays. The order of result values is determined by the order
+     * they occur in the arrays.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.4.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @returns {Array} Returns the new array of filtered values.
+     * @see _.difference, _.without
+     * @example
+     *
+     * _.xor([2, 1], [2, 3]);
+     * // => [1, 3]
+     */
+    var xor = baseRest(function(arrays) {
+      return baseXor(arrayFilter(arrays, isArrayLikeObject));
+    });
+
+    /**
+     * This method is like `_.xor` except that it accepts `iteratee` which is
+     * invoked for each element of each `arrays` to generate the criterion by
+     * which by which they're compared. The order of result values is determined
+     * by the order they occur in the arrays. The iteratee is invoked with one
+     * argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {Array} Returns the new array of filtered values.
+     * @example
+     *
+     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+     * // => [1.2, 3.4]
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
+     * // => [{ 'x': 2 }]
+     */
+    var xorBy = baseRest(function(arrays) {
+      var iteratee = last(arrays);
+      if (isArrayLikeObject(iteratee)) {
+        iteratee = undefined;
+      }
+      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
+    });
+
+    /**
+     * This method is like `_.xor` except that it accepts `comparator` which is
+     * invoked to compare elements of `arrays`. The order of result values is
+     * determined by the order they occur in the arrays. The comparator is invoked
+     * with two arguments: (arrVal, othVal).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to inspect.
+     * @param {Function} [comparator] The comparator invoked per element.
+     * @returns {Array} Returns the new array of filtered values.
+     * @example
+     *
+     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
+     *
+     * _.xorWith(objects, others, _.isEqual);
+     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
+     */
+    var xorWith = baseRest(function(arrays) {
+      var comparator = last(arrays);
+      comparator = typeof comparator == 'function' ? comparator : undefined;
+      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
+    });
+
+    /**
+     * Creates an array of grouped elements, the first of which contains the
+     * first elements of the given arrays, the second of which contains the
+     * second elements of the given arrays, and so on.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to process.
+     * @returns {Array} Returns the new array of grouped elements.
+     * @example
+     *
+     * _.zip(['a', 'b'], [1, 2], [true, false]);
+     * // => [['a', 1, true], ['b', 2, false]]
+     */
+    var zip = baseRest(unzip);
+
+    /**
+     * This method is like `_.fromPairs` except that it accepts two arrays,
+     * one of property identifiers and one of corresponding values.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.4.0
+     * @category Array
+     * @param {Array} [props=[]] The property identifiers.
+     * @param {Array} [values=[]] The property values.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * _.zipObject(['a', 'b'], [1, 2]);
+     * // => { 'a': 1, 'b': 2 }
+     */
+    function zipObject(props, values) {
+      return baseZipObject(props || [], values || [], assignValue);
+    }
+
+    /**
+     * This method is like `_.zipObject` except that it supports property paths.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.1.0
+     * @category Array
+     * @param {Array} [props=[]] The property identifiers.
+     * @param {Array} [values=[]] The property values.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
+     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
+     */
+    function zipObjectDeep(props, values) {
+      return baseZipObject(props || [], values || [], baseSet);
+    }
+
+    /**
+     * This method is like `_.zip` except that it accepts `iteratee` to specify
+     * how grouped values should be combined. The iteratee is invoked with the
+     * elements of each group: (...group).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.8.0
+     * @category Array
+     * @param {...Array} [arrays] The arrays to process.
+     * @param {Function} [iteratee=_.identity] The function to combine
+     *  grouped values.
+     * @returns {Array} Returns the new array of grouped elements.
+     * @example
+     *
+     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
+     *   return a + b + c;
+     * });
+     * // => [111, 222]
+     */
+    var zipWith = baseRest(function(arrays) {
+      var length = arrays.length,
+          iteratee = length > 1 ? arrays[length - 1] : undefined;
+
+      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
+      return unzipWith(arrays, iteratee);
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates a `lodash` wrapper instance that wraps `value` with explicit method
+     * chain sequences enabled. The result of such sequences must be unwrapped
+     * with `_#value`.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.3.0
+     * @category Seq
+     * @param {*} value The value to wrap.
+     * @returns {Object} Returns the new `lodash` wrapper instance.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'age': 36 },
+     *   { 'user': 'fred',    'age': 40 },
+     *   { 'user': 'pebbles', 'age': 1 }
+     * ];
+     *
+     * var youngest = _
+     *   .chain(users)
+     *   .sortBy('age')
+     *   .map(function(o) {
+     *     return o.user + ' is ' + o.age;
+     *   })
+     *   .head()
+     *   .value();
+     * // => 'pebbles is 1'
+     */
+    function chain(value) {
+      var result = lodash(value);
+      result.__chain__ = true;
+      return result;
+    }
+
+    /**
+     * This method invokes `interceptor` and returns `value`. The interceptor
+     * is invoked with one argument; (value). The purpose of this method is to
+     * "tap into" a method chain sequence in order to modify intermediate results.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Seq
+     * @param {*} value The value to provide to `interceptor`.
+     * @param {Function} interceptor The function to invoke.
+     * @returns {*} Returns `value`.
+     * @example
+     *
+     * _([1, 2, 3])
+     *  .tap(function(array) {
+     *    // Mutate input array.
+     *    array.pop();
+     *  })
+     *  .reverse()
+     *  .value();
+     * // => [2, 1]
+     */
+    function tap(value, interceptor) {
+      interceptor(value);
+      return value;
+    }
+
+    /**
+     * This method is like `_.tap` except that it returns the result of `interceptor`.
+     * The purpose of this method is to "pass thru" values replacing intermediate
+     * results in a method chain sequence.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Seq
+     * @param {*} value The value to provide to `interceptor`.
+     * @param {Function} interceptor The function to invoke.
+     * @returns {*} Returns the result of `interceptor`.
+     * @example
+     *
+     * _('  abc  ')
+     *  .chain()
+     *  .trim()
+     *  .thru(function(value) {
+     *    return [value];
+     *  })
+     *  .value();
+     * // => ['abc']
+     */
+    function thru(value, interceptor) {
+      return interceptor(value);
+    }
+
+    /**
+     * This method is the wrapper version of `_.at`.
+     *
+     * @name at
+     * @memberOf _
+     * @since 1.0.0
+     * @category Seq
+     * @param {...(string|string[])} [paths] The property paths to pick.
+     * @returns {Object} Returns the new `lodash` wrapper instance.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
+     *
+     * _(object).at(['a[0].b.c', 'a[1]']).value();
+     * // => [3, 4]
+     */
+    var wrapperAt = flatRest(function(paths) {
+      var length = paths.length,
+          start = length ? paths[0] : 0,
+          value = this.__wrapped__,
+          interceptor = function(object) { return baseAt(object, paths); };
+
+      if (length > 1 || this.__actions__.length ||
+          !(value instanceof LazyWrapper) || !isIndex(start)) {
+        return this.thru(interceptor);
+      }
+      value = value.slice(start, +start + (length ? 1 : 0));
+      value.__actions__.push({
+        'func': thru,
+        'args': [interceptor],
+        'thisArg': undefined
+      });
+      return new LodashWrapper(value, this.__chain__).thru(function(array) {
+        if (length && !array.length) {
+          array.push(undefined);
+        }
+        return array;
+      });
+    });
+
+    /**
+     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
+     *
+     * @name chain
+     * @memberOf _
+     * @since 0.1.0
+     * @category Seq
+     * @returns {Object} Returns the new `lodash` wrapper instance.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney', 'age': 36 },
+     *   { 'user': 'fred',   'age': 40 }
+     * ];
+     *
+     * // A sequence without explicit chaining.
+     * _(users).head();
+     * // => { 'user': 'barney', 'age': 36 }
+     *
+     * // A sequence with explicit chaining.
+     * _(users)
+     *   .chain()
+     *   .head()
+     *   .pick('user')
+     *   .value();
+     * // => { 'user': 'barney' }
+     */
+    function wrapperChain() {
+      return chain(this);
+    }
+
+    /**
+     * Executes the chain sequence and returns the wrapped result.
+     *
+     * @name commit
+     * @memberOf _
+     * @since 3.2.0
+     * @category Seq
+     * @returns {Object} Returns the new `lodash` wrapper instance.
+     * @example
+     *
+     * var array = [1, 2];
+     * var wrapped = _(array).push(3);
+     *
+     * console.log(array);
+     * // => [1, 2]
+     *
+     * wrapped = wrapped.commit();
+     * console.log(array);
+     * // => [1, 2, 3]
+     *
+     * wrapped.last();
+     * // => 3
+     *
+     * console.log(array);
+     * // => [1, 2, 3]
+     */
+    function wrapperCommit() {
+      return new LodashWrapper(this.value(), this.__chain__);
+    }
+
+    /**
+     * Gets the next value on a wrapped object following the
+     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
+     *
+     * @name next
+     * @memberOf _
+     * @since 4.0.0
+     * @category Seq
+     * @returns {Object} Returns the next iterator value.
+     * @example
+     *
+     * var wrapped = _([1, 2]);
+     *
+     * wrapped.next();
+     * // => { 'done': false, 'value': 1 }
+     *
+     * wrapped.next();
+     * // => { 'done': false, 'value': 2 }
+     *
+     * wrapped.next();
+     * // => { 'done': true, 'value': undefined }
+     */
+    function wrapperNext() {
+      if (this.__values__ === undefined) {
+        this.__values__ = toArray(this.value());
+      }
+      var done = this.__index__ >= this.__values__.length,
+          value = done ? undefined : this.__values__[this.__index__++];
+
+      return { 'done': done, 'value': value };
+    }
+
+    /**
+     * Enables the wrapper to be iterable.
+     *
+     * @name Symbol.iterator
+     * @memberOf _
+     * @since 4.0.0
+     * @category Seq
+     * @returns {Object} Returns the wrapper object.
+     * @example
+     *
+     * var wrapped = _([1, 2]);
+     *
+     * wrapped[Symbol.iterator]() === wrapped;
+     * // => true
+     *
+     * Array.from(wrapped);
+     * // => [1, 2]
+     */
+    function wrapperToIterator() {
+      return this;
+    }
+
+    /**
+     * Creates a clone of the chain sequence planting `value` as the wrapped value.
+     *
+     * @name plant
+     * @memberOf _
+     * @since 3.2.0
+     * @category Seq
+     * @param {*} value The value to plant.
+     * @returns {Object} Returns the new `lodash` wrapper instance.
+     * @example
+     *
+     * function square(n) {
+     *   return n * n;
+     * }
+     *
+     * var wrapped = _([1, 2]).map(square);
+     * var other = wrapped.plant([3, 4]);
+     *
+     * other.value();
+     * // => [9, 16]
+     *
+     * wrapped.value();
+     * // => [1, 4]
+     */
+    function wrapperPlant(value) {
+      var result,
+          parent = this;
+
+      while (parent instanceof baseLodash) {
+        var clone = wrapperClone(parent);
+        clone.__index__ = 0;
+        clone.__values__ = undefined;
+        if (result) {
+          previous.__wrapped__ = clone;
+        } else {
+          result = clone;
+        }
+        var previous = clone;
+        parent = parent.__wrapped__;
+      }
+      previous.__wrapped__ = value;
+      return result;
+    }
+
+    /**
+     * This method is the wrapper version of `_.reverse`.
+     *
+     * **Note:** This method mutates the wrapped array.
+     *
+     * @name reverse
+     * @memberOf _
+     * @since 0.1.0
+     * @category Seq
+     * @returns {Object} Returns the new `lodash` wrapper instance.
+     * @example
+     *
+     * var array = [1, 2, 3];
+     *
+     * _(array).reverse().value()
+     * // => [3, 2, 1]
+     *
+     * console.log(array);
+     * // => [3, 2, 1]
+     */
+    function wrapperReverse() {
+      var value = this.__wrapped__;
+      if (value instanceof LazyWrapper) {
+        var wrapped = value;
+        if (this.__actions__.length) {
+          wrapped = new LazyWrapper(this);
+        }
+        wrapped = wrapped.reverse();
+        wrapped.__actions__.push({
+          'func': thru,
+          'args': [reverse],
+          'thisArg': undefined
+        });
+        return new LodashWrapper(wrapped, this.__chain__);
+      }
+      return this.thru(reverse);
+    }
+
+    /**
+     * Executes the chain sequence to resolve the unwrapped value.
+     *
+     * @name value
+     * @memberOf _
+     * @since 0.1.0
+     * @alias toJSON, valueOf
+     * @category Seq
+     * @returns {*} Returns the resolved unwrapped value.
+     * @example
+     *
+     * _([1, 2, 3]).value();
+     * // => [1, 2, 3]
+     */
+    function wrapperValue() {
+      return baseWrapperValue(this.__wrapped__, this.__actions__);
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of `collection` thru `iteratee`. The corresponding value of
+     * each key is the number of times the key was returned by `iteratee`. The
+     * iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.5.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * _.countBy([6.1, 4.2, 6.3], Math.floor);
+     * // => { '4': 1, '6': 2 }
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.countBy(['one', 'two', 'three'], 'length');
+     * // => { '3': 2, '5': 1 }
+     */
+    var countBy = createAggregator(function(result, value, key) {
+      if (hasOwnProperty.call(result, key)) {
+        ++result[key];
+      } else {
+        baseAssignValue(result, key, 1);
+      }
+    });
+
+    /**
+     * Checks if `predicate` returns truthy for **all** elements of `collection`.
+     * Iteration is stopped once `predicate` returns falsey. The predicate is
+     * invoked with three arguments: (value, index|key, collection).
+     *
+     * **Note:** This method returns `true` for
+     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
+     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
+     * elements of empty collections.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {boolean} Returns `true` if all elements pass the predicate check,
+     *  else `false`.
+     * @example
+     *
+     * _.every([true, 1, null, 'yes'], Boolean);
+     * // => false
+     *
+     * var users = [
+     *   { 'user': 'barney', 'age': 36, 'active': false },
+     *   { 'user': 'fred',   'age': 40, 'active': false }
+     * ];
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.every(users, { 'user': 'barney', 'active': false });
+     * // => false
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.every(users, ['active', false]);
+     * // => true
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.every(users, 'active');
+     * // => false
+     */
+    function every(collection, predicate, guard) {
+      var func = isArray(collection) ? arrayEvery : baseEvery;
+      if (guard && isIterateeCall(collection, predicate, guard)) {
+        predicate = undefined;
+      }
+      return func(collection, getIteratee(predicate, 3));
+    }
+
+    /**
+     * Iterates over elements of `collection`, returning an array of all elements
+     * `predicate` returns truthy for. The predicate is invoked with three
+     * arguments: (value, index|key, collection).
+     *
+     * **Note:** Unlike `_.remove`, this method returns a new array.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the new filtered array.
+     * @see _.reject
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney', 'age': 36, 'active': true },
+     *   { 'user': 'fred',   'age': 40, 'active': false }
+     * ];
+     *
+     * _.filter(users, function(o) { return !o.active; });
+     * // => objects for ['fred']
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.filter(users, { 'age': 36, 'active': true });
+     * // => objects for ['barney']
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.filter(users, ['active', false]);
+     * // => objects for ['fred']
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.filter(users, 'active');
+     * // => objects for ['barney']
+     */
+    function filter(collection, predicate) {
+      var func = isArray(collection) ? arrayFilter : baseFilter;
+      return func(collection, getIteratee(predicate, 3));
+    }
+
+    /**
+     * Iterates over elements of `collection`, returning the first element
+     * `predicate` returns truthy for. The predicate is invoked with three
+     * arguments: (value, index|key, collection).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to inspect.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @param {number} [fromIndex=0] The index to search from.
+     * @returns {*} Returns the matched element, else `undefined`.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'age': 36, 'active': true },
+     *   { 'user': 'fred',    'age': 40, 'active': false },
+     *   { 'user': 'pebbles', 'age': 1,  'active': true }
+     * ];
+     *
+     * _.find(users, function(o) { return o.age < 40; });
+     * // => object for 'barney'
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.find(users, { 'age': 1, 'active': true });
+     * // => object for 'pebbles'
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.find(users, ['active', false]);
+     * // => object for 'fred'
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.find(users, 'active');
+     * // => object for 'barney'
+     */
+    var find = createFind(findIndex);
+
+    /**
+     * This method is like `_.find` except that it iterates over elements of
+     * `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to inspect.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @param {number} [fromIndex=collection.length-1] The index to search from.
+     * @returns {*} Returns the matched element, else `undefined`.
+     * @example
+     *
+     * _.findLast([1, 2, 3, 4], function(n) {
+     *   return n % 2 == 1;
+     * });
+     * // => 3
+     */
+    var findLast = createFind(findLastIndex);
+
+    /**
+     * Creates a flattened array of values by running each element in `collection`
+     * thru `iteratee` and flattening the mapped results. The iteratee is invoked
+     * with three arguments: (value, index|key, collection).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the new flattened array.
+     * @example
+     *
+     * function duplicate(n) {
+     *   return [n, n];
+     * }
+     *
+     * _.flatMap([1, 2], duplicate);
+     * // => [1, 1, 2, 2]
+     */
+    function flatMap(collection, iteratee) {
+      return baseFlatten(map(collection, iteratee), 1);
+    }
+
+    /**
+     * This method is like `_.flatMap` except that it recursively flattens the
+     * mapped results.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.7.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the new flattened array.
+     * @example
+     *
+     * function duplicate(n) {
+     *   return [[[n, n]]];
+     * }
+     *
+     * _.flatMapDeep([1, 2], duplicate);
+     * // => [1, 1, 2, 2]
+     */
+    function flatMapDeep(collection, iteratee) {
+      return baseFlatten(map(collection, iteratee), INFINITY);
+    }
+
+    /**
+     * This method is like `_.flatMap` except that it recursively flattens the
+     * mapped results up to `depth` times.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.7.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @param {number} [depth=1] The maximum recursion depth.
+     * @returns {Array} Returns the new flattened array.
+     * @example
+     *
+     * function duplicate(n) {
+     *   return [[[n, n]]];
+     * }
+     *
+     * _.flatMapDepth([1, 2], duplicate, 2);
+     * // => [[1, 1], [2, 2]]
+     */
+    function flatMapDepth(collection, iteratee, depth) {
+      depth = depth === undefined ? 1 : toInteger(depth);
+      return baseFlatten(map(collection, iteratee), depth);
+    }
+
+    /**
+     * Iterates over elements of `collection` and invokes `iteratee` for each element.
+     * The iteratee is invoked with three arguments: (value, index|key, collection).
+     * Iteratee functions may exit iteration early by explicitly returning `false`.
+     *
+     * **Note:** As with other "Collections" methods, objects with a "length"
+     * property are iterated like arrays. To avoid this behavior use `_.forIn`
+     * or `_.forOwn` for object iteration.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @alias each
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Array|Object} Returns `collection`.
+     * @see _.forEachRight
+     * @example
+     *
+     * _.forEach([1, 2], function(value) {
+     *   console.log(value);
+     * });
+     * // => Logs `1` then `2`.
+     *
+     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
+     */
+    function forEach(collection, iteratee) {
+      var func = isArray(collection) ? arrayEach : baseEach;
+      return func(collection, getIteratee(iteratee, 3));
+    }
+
+    /**
+     * This method is like `_.forEach` except that it iterates over elements of
+     * `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @alias eachRight
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Array|Object} Returns `collection`.
+     * @see _.forEach
+     * @example
+     *
+     * _.forEachRight([1, 2], function(value) {
+     *   console.log(value);
+     * });
+     * // => Logs `2` then `1`.
+     */
+    function forEachRight(collection, iteratee) {
+      var func = isArray(collection) ? arrayEachRight : baseEachRight;
+      return func(collection, getIteratee(iteratee, 3));
+    }
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of `collection` thru `iteratee`. The order of grouped values
+     * is determined by the order they occur in `collection`. The corresponding
+     * value of each key is an array of elements responsible for generating the
+     * key. The iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * _.groupBy([6.1, 4.2, 6.3], Math.floor);
+     * // => { '4': [4.2], '6': [6.1, 6.3] }
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.groupBy(['one', 'two', 'three'], 'length');
+     * // => { '3': ['one', 'two'], '5': ['three'] }
+     */
+    var groupBy = createAggregator(function(result, value, key) {
+      if (hasOwnProperty.call(result, key)) {
+        result[key].push(value);
+      } else {
+        baseAssignValue(result, key, [value]);
+      }
+    });
+
+    /**
+     * Checks if `value` is in `collection`. If `collection` is a string, it's
+     * checked for a substring of `value`, otherwise
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * is used for equality comparisons. If `fromIndex` is negative, it's used as
+     * the offset from the end of `collection`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object|string} collection The collection to inspect.
+     * @param {*} value The value to search for.
+     * @param {number} [fromIndex=0] The index to search from.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
+     * @returns {boolean} Returns `true` if `value` is found, else `false`.
+     * @example
+     *
+     * _.includes([1, 2, 3], 1);
+     * // => true
+     *
+     * _.includes([1, 2, 3], 1, 2);
+     * // => false
+     *
+     * _.includes({ 'a': 1, 'b': 2 }, 1);
+     * // => true
+     *
+     * _.includes('abcd', 'bc');
+     * // => true
+     */
+    function includes(collection, value, fromIndex, guard) {
+      collection = isArrayLike(collection) ? collection : values(collection);
+      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;
+
+      var length = collection.length;
+      if (fromIndex < 0) {
+        fromIndex = nativeMax(length + fromIndex, 0);
+      }
+      return isString(collection)
+        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
+        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
+    }
+
+    /**
+     * Invokes the method at `path` of each element in `collection`, returning
+     * an array of the results of each invoked method. Any additional arguments
+     * are provided to each invoked method. If `path` is a function, it's invoked
+     * for, and `this` bound to, each element in `collection`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Array|Function|string} path The path of the method to invoke or
+     *  the function invoked per iteration.
+     * @param {...*} [args] The arguments to invoke each method with.
+     * @returns {Array} Returns the array of results.
+     * @example
+     *
+     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
+     * // => [[1, 5, 7], [1, 2, 3]]
+     *
+     * _.invokeMap([123, 456], String.prototype.split, '');
+     * // => [['1', '2', '3'], ['4', '5', '6']]
+     */
+    var invokeMap = baseRest(function(collection, path, args) {
+      var index = -1,
+          isFunc = typeof path == 'function',
+          result = isArrayLike(collection) ? Array(collection.length) : [];
+
+      baseEach(collection, function(value) {
+        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
+      });
+      return result;
+    });
+
+    /**
+     * Creates an object composed of keys generated from the results of running
+     * each element of `collection` thru `iteratee`. The corresponding value of
+     * each key is the last element responsible for generating the key. The
+     * iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
+     * @returns {Object} Returns the composed aggregate object.
+     * @example
+     *
+     * var array = [
+     *   { 'dir': 'left', 'code': 97 },
+     *   { 'dir': 'right', 'code': 100 }
+     * ];
+     *
+     * _.keyBy(array, function(o) {
+     *   return String.fromCharCode(o.code);
+     * });
+     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+     *
+     * _.keyBy(array, 'dir');
+     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
+     */
+    var keyBy = createAggregator(function(result, value, key) {
+      baseAssignValue(result, key, value);
+    });
+
+    /**
+     * Creates an array of values by running each element in `collection` thru
+     * `iteratee`. The iteratee is invoked with three arguments:
+     * (value, index|key, collection).
+     *
+     * Many lodash methods are guarded to work as iteratees for methods like
+     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
+     *
+     * The guarded methods are:
+     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
+     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
+     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
+     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the new mapped array.
+     * @example
+     *
+     * function square(n) {
+     *   return n * n;
+     * }
+     *
+     * _.map([4, 8], square);
+     * // => [16, 64]
+     *
+     * _.map({ 'a': 4, 'b': 8 }, square);
+     * // => [16, 64] (iteration order is not guaranteed)
+     *
+     * var users = [
+     *   { 'user': 'barney' },
+     *   { 'user': 'fred' }
+     * ];
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.map(users, 'user');
+     * // => ['barney', 'fred']
+     */
+    function map(collection, iteratee) {
+      var func = isArray(collection) ? arrayMap : baseMap;
+      return func(collection, getIteratee(iteratee, 3));
+    }
+
+    /**
+     * This method is like `_.sortBy` except that it allows specifying the sort
+     * orders of the iteratees to sort by. If `orders` is unspecified, all values
+     * are sorted in ascending order. Otherwise, specify an order of "desc" for
+     * descending or "asc" for ascending sort order of corresponding values.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
+     *  The iteratees to sort by.
+     * @param {string[]} [orders] The sort orders of `iteratees`.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
+     * @returns {Array} Returns the new sorted array.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'fred',   'age': 48 },
+     *   { 'user': 'barney', 'age': 34 },
+     *   { 'user': 'fred',   'age': 40 },
+     *   { 'user': 'barney', 'age': 36 }
+     * ];
+     *
+     * // Sort by `user` in ascending order and by `age` in descending order.
+     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
+     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
+     */
+    function orderBy(collection, iteratees, orders, guard) {
+      if (collection == null) {
+        return [];
+      }
+      if (!isArray(iteratees)) {
+        iteratees = iteratees == null ? [] : [iteratees];
+      }
+      orders = guard ? undefined : orders;
+      if (!isArray(orders)) {
+        orders = orders == null ? [] : [orders];
+      }
+      return baseOrderBy(collection, iteratees, orders);
+    }
+
+    /**
+     * Creates an array of elements split into two groups, the first of which
+     * contains elements `predicate` returns truthy for, the second of which
+     * contains elements `predicate` returns falsey for. The predicate is
+     * invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the array of grouped elements.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney',  'age': 36, 'active': false },
+     *   { 'user': 'fred',    'age': 40, 'active': true },
+     *   { 'user': 'pebbles', 'age': 1,  'active': false }
+     * ];
+     *
+     * _.partition(users, function(o) { return o.active; });
+     * // => objects for [['fred'], ['barney', 'pebbles']]
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.partition(users, { 'age': 1, 'active': false });
+     * // => objects for [['pebbles'], ['barney', 'fred']]
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.partition(users, ['active', false]);
+     * // => objects for [['barney', 'pebbles'], ['fred']]
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.partition(users, 'active');
+     * // => objects for [['fred'], ['barney', 'pebbles']]
+     */
+    var partition = createAggregator(function(result, value, key) {
+      result[key ? 0 : 1].push(value);
+    }, function() { return [[], []]; });
+
+    /**
+     * Reduces `collection` to a value which is the accumulated result of running
+     * each element in `collection` thru `iteratee`, where each successive
+     * invocation is supplied the return value of the previous. If `accumulator`
+     * is not given, the first element of `collection` is used as the initial
+     * value. The iteratee is invoked with four arguments:
+     * (accumulator, value, index|key, collection).
+     *
+     * Many lodash methods are guarded to work as iteratees for methods like
+     * `_.reduce`, `_.reduceRight`, and `_.transform`.
+     *
+     * The guarded methods are:
+     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
+     * and `sortBy`
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @param {*} [accumulator] The initial value.
+     * @returns {*} Returns the accumulated value.
+     * @see _.reduceRight
+     * @example
+     *
+     * _.reduce([1, 2], function(sum, n) {
+     *   return sum + n;
+     * }, 0);
+     * // => 3
+     *
+     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
+     *   (result[value] || (result[value] = [])).push(key);
+     *   return result;
+     * }, {});
+     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
+     */
+    function reduce(collection, iteratee, accumulator) {
+      var func = isArray(collection) ? arrayReduce : baseReduce,
+          initAccum = arguments.length < 3;
+
+      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
+    }
+
+    /**
+     * This method is like `_.reduce` except that it iterates over elements of
+     * `collection` from right to left.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @param {*} [accumulator] The initial value.
+     * @returns {*} Returns the accumulated value.
+     * @see _.reduce
+     * @example
+     *
+     * var array = [[0, 1], [2, 3], [4, 5]];
+     *
+     * _.reduceRight(array, function(flattened, other) {
+     *   return flattened.concat(other);
+     * }, []);
+     * // => [4, 5, 2, 3, 0, 1]
+     */
+    function reduceRight(collection, iteratee, accumulator) {
+      var func = isArray(collection) ? arrayReduceRight : baseReduce,
+          initAccum = arguments.length < 3;
+
+      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
+    }
+
+    /**
+     * The opposite of `_.filter`; this method returns the elements of `collection`
+     * that `predicate` does **not** return truthy for.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the new filtered array.
+     * @see _.filter
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney', 'age': 36, 'active': false },
+     *   { 'user': 'fred',   'age': 40, 'active': true }
+     * ];
+     *
+     * _.reject(users, function(o) { return !o.active; });
+     * // => objects for ['fred']
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.reject(users, { 'age': 40, 'active': true });
+     * // => objects for ['barney']
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.reject(users, ['active', false]);
+     * // => objects for ['fred']
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.reject(users, 'active');
+     * // => objects for ['barney']
+     */
+    function reject(collection, predicate) {
+      var func = isArray(collection) ? arrayFilter : baseFilter;
+      return func(collection, negate(getIteratee(predicate, 3)));
+    }
+
+    /**
+     * Gets a random element from `collection`.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to sample.
+     * @returns {*} Returns the random element.
+     * @example
+     *
+     * _.sample([1, 2, 3, 4]);
+     * // => 2
+     */
+    function sample(collection) {
+      var func = isArray(collection) ? arraySample : baseSample;
+      return func(collection);
+    }
+
+    /**
+     * Gets `n` random elements at unique keys from `collection` up to the
+     * size of `collection`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to sample.
+     * @param {number} [n=1] The number of elements to sample.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Array} Returns the random elements.
+     * @example
+     *
+     * _.sampleSize([1, 2, 3], 2);
+     * // => [3, 1]
+     *
+     * _.sampleSize([1, 2, 3], 4);
+     * // => [2, 3, 1]
+     */
+    function sampleSize(collection, n, guard) {
+      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
+        n = 1;
+      } else {
+        n = toInteger(n);
+      }
+      var func = isArray(collection) ? arraySampleSize : baseSampleSize;
+      return func(collection, n);
+    }
+
+    /**
+     * Creates an array of shuffled values, using a version of the
+     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to shuffle.
+     * @returns {Array} Returns the new shuffled array.
+     * @example
+     *
+     * _.shuffle([1, 2, 3, 4]);
+     * // => [4, 1, 3, 2]
+     */
+    function shuffle(collection) {
+      var func = isArray(collection) ? arrayShuffle : baseShuffle;
+      return func(collection);
+    }
+
+    /**
+     * Gets the size of `collection` by returning its length for array-like
+     * values or the number of own enumerable string keyed properties for objects.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object|string} collection The collection to inspect.
+     * @returns {number} Returns the collection size.
+     * @example
+     *
+     * _.size([1, 2, 3]);
+     * // => 3
+     *
+     * _.size({ 'a': 1, 'b': 2 });
+     * // => 2
+     *
+     * _.size('pebbles');
+     * // => 7
+     */
+    function size(collection) {
+      if (collection == null) {
+        return 0;
+      }
+      if (isArrayLike(collection)) {
+        return isString(collection) ? stringSize(collection) : collection.length;
+      }
+      var tag = getTag(collection);
+      if (tag == mapTag || tag == setTag) {
+        return collection.size;
+      }
+      return baseKeys(collection).length;
+    }
+
+    /**
+     * Checks if `predicate` returns truthy for **any** element of `collection`.
+     * Iteration is stopped once `predicate` returns truthy. The predicate is
+     * invoked with three arguments: (value, index|key, collection).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {boolean} Returns `true` if any element passes the predicate check,
+     *  else `false`.
+     * @example
+     *
+     * _.some([null, 0, 'yes', false], Boolean);
+     * // => true
+     *
+     * var users = [
+     *   { 'user': 'barney', 'active': true },
+     *   { 'user': 'fred',   'active': false }
+     * ];
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.some(users, { 'user': 'barney', 'active': false });
+     * // => false
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.some(users, ['active', false]);
+     * // => true
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.some(users, 'active');
+     * // => true
+     */
+    function some(collection, predicate, guard) {
+      var func = isArray(collection) ? arraySome : baseSome;
+      if (guard && isIterateeCall(collection, predicate, guard)) {
+        predicate = undefined;
+      }
+      return func(collection, getIteratee(predicate, 3));
+    }
+
+    /**
+     * Creates an array of elements, sorted in ascending order by the results of
+     * running each element in a collection thru each iteratee. This method
+     * performs a stable sort, that is, it preserves the original sort order of
+     * equal elements. The iteratees are invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Collection
+     * @param {Array|Object} collection The collection to iterate over.
+     * @param {...(Function|Function[])} [iteratees=[_.identity]]
+     *  The iteratees to sort by.
+     * @returns {Array} Returns the new sorted array.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'fred',   'age': 48 },
+     *   { 'user': 'barney', 'age': 36 },
+     *   { 'user': 'fred',   'age': 40 },
+     *   { 'user': 'barney', 'age': 34 }
+     * ];
+     *
+     * _.sortBy(users, [function(o) { return o.user; }]);
+     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
+     *
+     * _.sortBy(users, ['user', 'age']);
+     * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
+     */
+    var sortBy = baseRest(function(collection, iteratees) {
+      if (collection == null) {
+        return [];
+      }
+      var length = iteratees.length;
+      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
+        iteratees = [];
+      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
+        iteratees = [iteratees[0]];
+      }
+      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Gets the timestamp of the number of milliseconds that have elapsed since
+     * the Unix epoch (1 January 1970 00:00:00 UTC).
+     *
+     * @static
+     * @memberOf _
+     * @since 2.4.0
+     * @category Date
+     * @returns {number} Returns the timestamp.
+     * @example
+     *
+     * _.defer(function(stamp) {
+     *   console.log(_.now() - stamp);
+     * }, _.now());
+     * // => Logs the number of milliseconds it took for the deferred invocation.
+     */
+    var now = ctxNow || function() {
+      return root.Date.now();
+    };
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * The opposite of `_.before`; this method creates a function that invokes
+     * `func` once it's called `n` or more times.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {number} n The number of calls before `func` is invoked.
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new restricted function.
+     * @example
+     *
+     * var saves = ['profile', 'settings'];
+     *
+     * var done = _.after(saves.length, function() {
+     *   console.log('done saving!');
+     * });
+     *
+     * _.forEach(saves, function(type) {
+     *   asyncSave({ 'type': type, 'complete': done });
+     * });
+     * // => Logs 'done saving!' after the two async saves have completed.
+     */
+    function after(n, func) {
+      if (typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      n = toInteger(n);
+      return function() {
+        if (--n < 1) {
+          return func.apply(this, arguments);
+        }
+      };
+    }
+
+    /**
+     * Creates a function that invokes `func`, with up to `n` arguments,
+     * ignoring any additional arguments.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Function
+     * @param {Function} func The function to cap arguments for.
+     * @param {number} [n=func.length] The arity cap.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Function} Returns the new capped function.
+     * @example
+     *
+     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
+     * // => [6, 8, 10]
+     */
+    function ary(func, n, guard) {
+      n = guard ? undefined : n;
+      n = (func && n == null) ? func.length : n;
+      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
+    }
+
+    /**
+     * Creates a function that invokes `func`, with the `this` binding and arguments
+     * of the created function, while it's called less than `n` times. Subsequent
+     * calls to the created function return the result of the last `func` invocation.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Function
+     * @param {number} n The number of calls at which `func` is no longer invoked.
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new restricted function.
+     * @example
+     *
+     * jQuery(element).on('click', _.before(5, addContactToList));
+     * // => Allows adding up to 4 contacts to the list.
+     */
+    function before(n, func) {
+      var result;
+      if (typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      n = toInteger(n);
+      return function() {
+        if (--n > 0) {
+          result = func.apply(this, arguments);
+        }
+        if (n <= 1) {
+          func = undefined;
+        }
+        return result;
+      };
+    }
+
+    /**
+     * Creates a function that invokes `func` with the `this` binding of `thisArg`
+     * and `partials` prepended to the arguments it receives.
+     *
+     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
+     * may be used as a placeholder for partially applied arguments.
+     *
+     * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
+     * property of bound functions.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {Function} func The function to bind.
+     * @param {*} thisArg The `this` binding of `func`.
+     * @param {...*} [partials] The arguments to be partially applied.
+     * @returns {Function} Returns the new bound function.
+     * @example
+     *
+     * function greet(greeting, punctuation) {
+     *   return greeting + ' ' + this.user + punctuation;
+     * }
+     *
+     * var object = { 'user': 'fred' };
+     *
+     * var bound = _.bind(greet, object, 'hi');
+     * bound('!');
+     * // => 'hi fred!'
+     *
+     * // Bound with placeholders.
+     * var bound = _.bind(greet, object, _, '!');
+     * bound('hi');
+     * // => 'hi fred!'
+     */
+    var bind = baseRest(function(func, thisArg, partials) {
+      var bitmask = WRAP_BIND_FLAG;
+      if (partials.length) {
+        var holders = replaceHolders(partials, getHolder(bind));
+        bitmask |= WRAP_PARTIAL_FLAG;
+      }
+      return createWrap(func, bitmask, thisArg, partials, holders);
+    });
+
+    /**
+     * Creates a function that invokes the method at `object[key]` with `partials`
+     * prepended to the arguments it receives.
+     *
+     * This method differs from `_.bind` by allowing bound functions to reference
+     * methods that may be redefined or don't yet exist. See
+     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
+     * for more details.
+     *
+     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
+     * builds, may be used as a placeholder for partially applied arguments.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.10.0
+     * @category Function
+     * @param {Object} object The object to invoke the method on.
+     * @param {string} key The key of the method.
+     * @param {...*} [partials] The arguments to be partially applied.
+     * @returns {Function} Returns the new bound function.
+     * @example
+     *
+     * var object = {
+     *   'user': 'fred',
+     *   'greet': function(greeting, punctuation) {
+     *     return greeting + ' ' + this.user + punctuation;
+     *   }
+     * };
+     *
+     * var bound = _.bindKey(object, 'greet', 'hi');
+     * bound('!');
+     * // => 'hi fred!'
+     *
+     * object.greet = function(greeting, punctuation) {
+     *   return greeting + 'ya ' + this.user + punctuation;
+     * };
+     *
+     * bound('!');
+     * // => 'hiya fred!'
+     *
+     * // Bound with placeholders.
+     * var bound = _.bindKey(object, 'greet', _, '!');
+     * bound('hi');
+     * // => 'hiya fred!'
+     */
+    var bindKey = baseRest(function(object, key, partials) {
+      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
+      if (partials.length) {
+        var holders = replaceHolders(partials, getHolder(bindKey));
+        bitmask |= WRAP_PARTIAL_FLAG;
+      }
+      return createWrap(key, bitmask, object, partials, holders);
+    });
+
+    /**
+     * Creates a function that accepts arguments of `func` and either invokes
+     * `func` returning its result, if at least `arity` number of arguments have
+     * been provided, or returns a function that accepts the remaining `func`
+     * arguments, and so on. The arity of `func` may be specified if `func.length`
+     * is not sufficient.
+     *
+     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
+     * may be used as a placeholder for provided arguments.
+     *
+     * **Note:** This method doesn't set the "length" property of curried functions.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Function
+     * @param {Function} func The function to curry.
+     * @param {number} [arity=func.length] The arity of `func`.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Function} Returns the new curried function.
+     * @example
+     *
+     * var abc = function(a, b, c) {
+     *   return [a, b, c];
+     * };
+     *
+     * var curried = _.curry(abc);
+     *
+     * curried(1)(2)(3);
+     * // => [1, 2, 3]
+     *
+     * curried(1, 2)(3);
+     * // => [1, 2, 3]
+     *
+     * curried(1, 2, 3);
+     * // => [1, 2, 3]
+     *
+     * // Curried with placeholders.
+     * curried(1)(_, 3)(2);
+     * // => [1, 2, 3]
+     */
+    function curry(func, arity, guard) {
+      arity = guard ? undefined : arity;
+      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
+      result.placeholder = curry.placeholder;
+      return result;
+    }
+
+    /**
+     * This method is like `_.curry` except that arguments are applied to `func`
+     * in the manner of `_.partialRight` instead of `_.partial`.
+     *
+     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
+     * builds, may be used as a placeholder for provided arguments.
+     *
+     * **Note:** This method doesn't set the "length" property of curried functions.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Function
+     * @param {Function} func The function to curry.
+     * @param {number} [arity=func.length] The arity of `func`.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Function} Returns the new curried function.
+     * @example
+     *
+     * var abc = function(a, b, c) {
+     *   return [a, b, c];
+     * };
+     *
+     * var curried = _.curryRight(abc);
+     *
+     * curried(3)(2)(1);
+     * // => [1, 2, 3]
+     *
+     * curried(2, 3)(1);
+     * // => [1, 2, 3]
+     *
+     * curried(1, 2, 3);
+     * // => [1, 2, 3]
+     *
+     * // Curried with placeholders.
+     * curried(3)(1, _)(2);
+     * // => [1, 2, 3]
+     */
+    function curryRight(func, arity, guard) {
+      arity = guard ? undefined : arity;
+      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
+      result.placeholder = curryRight.placeholder;
+      return result;
+    }
+
+    /**
+     * Creates a debounced function that delays invoking `func` until after `wait`
+     * milliseconds have elapsed since the last time the debounced function was
+     * invoked. The debounced function comes with a `cancel` method to cancel
+     * delayed `func` invocations and a `flush` method to immediately invoke them.
+     * Provide `options` to indicate whether `func` should be invoked on the
+     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
+     * with the last arguments provided to the debounced function. Subsequent
+     * calls to the debounced function return the result of the last `func`
+     * invocation.
+     *
+     * **Note:** If `leading` and `trailing` options are `true`, `func` is
+     * invoked on the trailing edge of the timeout only if the debounced function
+     * is invoked more than once during the `wait` timeout.
+     *
+     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
+     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
+     *
+     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
+     * for details over the differences between `_.debounce` and `_.throttle`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {Function} func The function to debounce.
+     * @param {number} [wait=0] The number of milliseconds to delay.
+     * @param {Object} [options={}] The options object.
+     * @param {boolean} [options.leading=false]
+     *  Specify invoking on the leading edge of the timeout.
+     * @param {number} [options.maxWait]
+     *  The maximum time `func` is allowed to be delayed before it's invoked.
+     * @param {boolean} [options.trailing=true]
+     *  Specify invoking on the trailing edge of the timeout.
+     * @returns {Function} Returns the new debounced function.
+     * @example
+     *
+     * // Avoid costly calculations while the window size is in flux.
+     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
+     *
+     * // Invoke `sendMail` when clicked, debouncing subsequent calls.
+     * jQuery(element).on('click', _.debounce(sendMail, 300, {
+     *   'leading': true,
+     *   'trailing': false
+     * }));
+     *
+     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
+     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
+     * var source = new EventSource('/stream');
+     * jQuery(source).on('message', debounced);
+     *
+     * // Cancel the trailing debounced invocation.
+     * jQuery(window).on('popstate', debounced.cancel);
+     */
+    function debounce(func, wait, options) {
+      var lastArgs,
+          lastThis,
+          maxWait,
+          result,
+          timerId,
+          lastCallTime,
+          lastInvokeTime = 0,
+          leading = false,
+          maxing = false,
+          trailing = true;
+
+      if (typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      wait = toNumber(wait) || 0;
+      if (isObject(options)) {
+        leading = !!options.leading;
+        maxing = 'maxWait' in options;
+        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
+        trailing = 'trailing' in options ? !!options.trailing : trailing;
+      }
+
+      function invokeFunc(time) {
+        var args = lastArgs,
+            thisArg = lastThis;
+
+        lastArgs = lastThis = undefined;
+        lastInvokeTime = time;
+        result = func.apply(thisArg, args);
+        return result;
+      }
+
+      function leadingEdge(time) {
+        // Reset any `maxWait` timer.
+        lastInvokeTime = time;
+        // Start the timer for the trailing edge.
+        timerId = setTimeout(timerExpired, wait);
+        // Invoke the leading edge.
+        return leading ? invokeFunc(time) : result;
+      }
+
+      function remainingWait(time) {
+        var timeSinceLastCall = time - lastCallTime,
+            timeSinceLastInvoke = time - lastInvokeTime,
+            timeWaiting = wait - timeSinceLastCall;
+
+        return maxing
+          ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
+          : timeWaiting;
+      }
+
+      function shouldInvoke(time) {
+        var timeSinceLastCall = time - lastCallTime,
+            timeSinceLastInvoke = time - lastInvokeTime;
+
+        // Either this is the first call, activity has stopped and we're at the
+        // trailing edge, the system time has gone backwards and we're treating
+        // it as the trailing edge, or we've hit the `maxWait` limit.
+        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
+          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
+      }
+
+      function timerExpired() {
+        var time = now();
+        if (shouldInvoke(time)) {
+          return trailingEdge(time);
+        }
+        // Restart the timer.
+        timerId = setTimeout(timerExpired, remainingWait(time));
+      }
+
+      function trailingEdge(time) {
+        timerId = undefined;
+
+        // Only invoke if we have `lastArgs` which means `func` has been
+        // debounced at least once.
+        if (trailing && lastArgs) {
+          return invokeFunc(time);
+        }
+        lastArgs = lastThis = undefined;
+        return result;
+      }
+
+      function cancel() {
+        if (timerId !== undefined) {
+          clearTimeout(timerId);
+        }
+        lastInvokeTime = 0;
+        lastArgs = lastCallTime = lastThis = timerId = undefined;
+      }
+
+      function flush() {
+        return timerId === undefined ? result : trailingEdge(now());
+      }
+
+      function debounced() {
+        var time = now(),
+            isInvoking = shouldInvoke(time);
+
+        lastArgs = arguments;
+        lastThis = this;
+        lastCallTime = time;
+
+        if (isInvoking) {
+          if (timerId === undefined) {
+            return leadingEdge(lastCallTime);
+          }
+          if (maxing) {
+            // Handle invocations in a tight loop.
+            timerId = setTimeout(timerExpired, wait);
+            return invokeFunc(lastCallTime);
+          }
+        }
+        if (timerId === undefined) {
+          timerId = setTimeout(timerExpired, wait);
+        }
+        return result;
+      }
+      debounced.cancel = cancel;
+      debounced.flush = flush;
+      return debounced;
+    }
+
+    /**
+     * Defers invoking the `func` until the current call stack has cleared. Any
+     * additional arguments are provided to `func` when it's invoked.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {Function} func The function to defer.
+     * @param {...*} [args] The arguments to invoke `func` with.
+     * @returns {number} Returns the timer id.
+     * @example
+     *
+     * _.defer(function(text) {
+     *   console.log(text);
+     * }, 'deferred');
+     * // => Logs 'deferred' after one millisecond.
+     */
+    var defer = baseRest(function(func, args) {
+      return baseDelay(func, 1, args);
+    });
+
+    /**
+     * Invokes `func` after `wait` milliseconds. Any additional arguments are
+     * provided to `func` when it's invoked.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {Function} func The function to delay.
+     * @param {number} wait The number of milliseconds to delay invocation.
+     * @param {...*} [args] The arguments to invoke `func` with.
+     * @returns {number} Returns the timer id.
+     * @example
+     *
+     * _.delay(function(text) {
+     *   console.log(text);
+     * }, 1000, 'later');
+     * // => Logs 'later' after one second.
+     */
+    var delay = baseRest(function(func, wait, args) {
+      return baseDelay(func, toNumber(wait) || 0, args);
+    });
+
+    /**
+     * Creates a function that invokes `func` with arguments reversed.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Function
+     * @param {Function} func The function to flip arguments for.
+     * @returns {Function} Returns the new flipped function.
+     * @example
+     *
+     * var flipped = _.flip(function() {
+     *   return _.toArray(arguments);
+     * });
+     *
+     * flipped('a', 'b', 'c', 'd');
+     * // => ['d', 'c', 'b', 'a']
+     */
+    function flip(func) {
+      return createWrap(func, WRAP_FLIP_FLAG);
+    }
+
+    /**
+     * Creates a function that memoizes the result of `func`. If `resolver` is
+     * provided, it determines the cache key for storing the result based on the
+     * arguments provided to the memoized function. By default, the first argument
+     * provided to the memoized function is used as the map cache key. The `func`
+     * is invoked with the `this` binding of the memoized function.
+     *
+     * **Note:** The cache is exposed as the `cache` property on the memoized
+     * function. Its creation may be customized by replacing the `_.memoize.Cache`
+     * constructor with one whose instances implement the
+     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
+     * method interface of `clear`, `delete`, `get`, `has`, and `set`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {Function} func The function to have its output memoized.
+     * @param {Function} [resolver] The function to resolve the cache key.
+     * @returns {Function} Returns the new memoized function.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': 2 };
+     * var other = { 'c': 3, 'd': 4 };
+     *
+     * var values = _.memoize(_.values);
+     * values(object);
+     * // => [1, 2]
+     *
+     * values(other);
+     * // => [3, 4]
+     *
+     * object.a = 2;
+     * values(object);
+     * // => [1, 2]
+     *
+     * // Modify the result cache.
+     * values.cache.set(object, ['a', 'b']);
+     * values(object);
+     * // => ['a', 'b']
+     *
+     * // Replace `_.memoize.Cache`.
+     * _.memoize.Cache = WeakMap;
+     */
+    function memoize(func, resolver) {
+      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      var memoized = function() {
+        var args = arguments,
+            key = resolver ? resolver.apply(this, args) : args[0],
+            cache = memoized.cache;
+
+        if (cache.has(key)) {
+          return cache.get(key);
+        }
+        var result = func.apply(this, args);
+        memoized.cache = cache.set(key, result) || cache;
+        return result;
+      };
+      memoized.cache = new (memoize.Cache || MapCache);
+      return memoized;
+    }
+
+    // Expose `MapCache`.
+    memoize.Cache = MapCache;
+
+    /**
+     * Creates a function that negates the result of the predicate `func`. The
+     * `func` predicate is invoked with the `this` binding and arguments of the
+     * created function.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Function
+     * @param {Function} predicate The predicate to negate.
+     * @returns {Function} Returns the new negated function.
+     * @example
+     *
+     * function isEven(n) {
+     *   return n % 2 == 0;
+     * }
+     *
+     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
+     * // => [1, 3, 5]
+     */
+    function negate(predicate) {
+      if (typeof predicate != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      return function() {
+        var args = arguments;
+        switch (args.length) {
+          case 0: return !predicate.call(this);
+          case 1: return !predicate.call(this, args[0]);
+          case 2: return !predicate.call(this, args[0], args[1]);
+          case 3: return !predicate.call(this, args[0], args[1], args[2]);
+        }
+        return !predicate.apply(this, args);
+      };
+    }
+
+    /**
+     * Creates a function that is restricted to invoking `func` once. Repeat calls
+     * to the function return the value of the first invocation. The `func` is
+     * invoked with the `this` binding and arguments of the created function.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {Function} func The function to restrict.
+     * @returns {Function} Returns the new restricted function.
+     * @example
+     *
+     * var initialize = _.once(createApplication);
+     * initialize();
+     * initialize();
+     * // => `createApplication` is invoked once
+     */
+    function once(func) {
+      return before(2, func);
+    }
+
+    /**
+     * Creates a function that invokes `func` with its arguments transformed.
+     *
+     * @static
+     * @since 4.0.0
+     * @memberOf _
+     * @category Function
+     * @param {Function} func The function to wrap.
+     * @param {...(Function|Function[])} [transforms=[_.identity]]
+     *  The argument transforms.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * function doubled(n) {
+     *   return n * 2;
+     * }
+     *
+     * function square(n) {
+     *   return n * n;
+     * }
+     *
+     * var func = _.overArgs(function(x, y) {
+     *   return [x, y];
+     * }, [square, doubled]);
+     *
+     * func(9, 3);
+     * // => [81, 6]
+     *
+     * func(10, 5);
+     * // => [100, 10]
+     */
+    var overArgs = castRest(function(func, transforms) {
+      transforms = (transforms.length == 1 && isArray(transforms[0]))
+        ? arrayMap(transforms[0], baseUnary(getIteratee()))
+        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));
+
+      var funcsLength = transforms.length;
+      return baseRest(function(args) {
+        var index = -1,
+            length = nativeMin(args.length, funcsLength);
+
+        while (++index < length) {
+          args[index] = transforms[index].call(this, args[index]);
+        }
+        return apply(func, this, args);
+      });
+    });
+
+    /**
+     * Creates a function that invokes `func` with `partials` prepended to the
+     * arguments it receives. This method is like `_.bind` except it does **not**
+     * alter the `this` binding.
+     *
+     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
+     * builds, may be used as a placeholder for partially applied arguments.
+     *
+     * **Note:** This method doesn't set the "length" property of partially
+     * applied functions.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.2.0
+     * @category Function
+     * @param {Function} func The function to partially apply arguments to.
+     * @param {...*} [partials] The arguments to be partially applied.
+     * @returns {Function} Returns the new partially applied function.
+     * @example
+     *
+     * function greet(greeting, name) {
+     *   return greeting + ' ' + name;
+     * }
+     *
+     * var sayHelloTo = _.partial(greet, 'hello');
+     * sayHelloTo('fred');
+     * // => 'hello fred'
+     *
+     * // Partially applied with placeholders.
+     * var greetFred = _.partial(greet, _, 'fred');
+     * greetFred('hi');
+     * // => 'hi fred'
+     */
+    var partial = baseRest(function(func, partials) {
+      var holders = replaceHolders(partials, getHolder(partial));
+      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
+    });
+
+    /**
+     * This method is like `_.partial` except that partially applied arguments
+     * are appended to the arguments it receives.
+     *
+     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
+     * builds, may be used as a placeholder for partially applied arguments.
+     *
+     * **Note:** This method doesn't set the "length" property of partially
+     * applied functions.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.0.0
+     * @category Function
+     * @param {Function} func The function to partially apply arguments to.
+     * @param {...*} [partials] The arguments to be partially applied.
+     * @returns {Function} Returns the new partially applied function.
+     * @example
+     *
+     * function greet(greeting, name) {
+     *   return greeting + ' ' + name;
+     * }
+     *
+     * var greetFred = _.partialRight(greet, 'fred');
+     * greetFred('hi');
+     * // => 'hi fred'
+     *
+     * // Partially applied with placeholders.
+     * var sayHelloTo = _.partialRight(greet, 'hello', _);
+     * sayHelloTo('fred');
+     * // => 'hello fred'
+     */
+    var partialRight = baseRest(function(func, partials) {
+      var holders = replaceHolders(partials, getHolder(partialRight));
+      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
+    });
+
+    /**
+     * Creates a function that invokes `func` with arguments arranged according
+     * to the specified `indexes` where the argument value at the first index is
+     * provided as the first argument, the argument value at the second index is
+     * provided as the second argument, and so on.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Function
+     * @param {Function} func The function to rearrange arguments for.
+     * @param {...(number|number[])} indexes The arranged argument indexes.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var rearged = _.rearg(function(a, b, c) {
+     *   return [a, b, c];
+     * }, [2, 0, 1]);
+     *
+     * rearged('b', 'c', 'a')
+     * // => ['a', 'b', 'c']
+     */
+    var rearg = flatRest(function(func, indexes) {
+      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
+    });
+
+    /**
+     * Creates a function that invokes `func` with the `this` binding of the
+     * created function and arguments from `start` and beyond provided as
+     * an array.
+     *
+     * **Note:** This method is based on the
+     * [rest parameter](https://mdn.io/rest_parameters).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Function
+     * @param {Function} func The function to apply a rest parameter to.
+     * @param {number} [start=func.length-1] The start position of the rest parameter.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var say = _.rest(function(what, names) {
+     *   return what + ' ' + _.initial(names).join(', ') +
+     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
+     * });
+     *
+     * say('hello', 'fred', 'barney', 'pebbles');
+     * // => 'hello fred, barney, & pebbles'
+     */
+    function rest(func, start) {
+      if (typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      start = start === undefined ? start : toInteger(start);
+      return baseRest(func, start);
+    }
+
+    /**
+     * Creates a function that invokes `func` with the `this` binding of the
+     * create function and an array of arguments much like
+     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
+     *
+     * **Note:** This method is based on the
+     * [spread operator](https://mdn.io/spread_operator).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.2.0
+     * @category Function
+     * @param {Function} func The function to spread arguments over.
+     * @param {number} [start=0] The start position of the spread.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var say = _.spread(function(who, what) {
+     *   return who + ' says ' + what;
+     * });
+     *
+     * say(['fred', 'hello']);
+     * // => 'fred says hello'
+     *
+     * var numbers = Promise.all([
+     *   Promise.resolve(40),
+     *   Promise.resolve(36)
+     * ]);
+     *
+     * numbers.then(_.spread(function(x, y) {
+     *   return x + y;
+     * }));
+     * // => a Promise of 76
+     */
+    function spread(func, start) {
+      if (typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      start = start == null ? 0 : nativeMax(toInteger(start), 0);
+      return baseRest(function(args) {
+        var array = args[start],
+            otherArgs = castSlice(args, 0, start);
+
+        if (array) {
+          arrayPush(otherArgs, array);
+        }
+        return apply(func, this, otherArgs);
+      });
+    }
+
+    /**
+     * Creates a throttled function that only invokes `func` at most once per
+     * every `wait` milliseconds. The throttled function comes with a `cancel`
+     * method to cancel delayed `func` invocations and a `flush` method to
+     * immediately invoke them. Provide `options` to indicate whether `func`
+     * should be invoked on the leading and/or trailing edge of the `wait`
+     * timeout. The `func` is invoked with the last arguments provided to the
+     * throttled function. Subsequent calls to the throttled function return the
+     * result of the last `func` invocation.
+     *
+     * **Note:** If `leading` and `trailing` options are `true`, `func` is
+     * invoked on the trailing edge of the timeout only if the throttled function
+     * is invoked more than once during the `wait` timeout.
+     *
+     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
+     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
+     *
+     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
+     * for details over the differences between `_.throttle` and `_.debounce`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {Function} func The function to throttle.
+     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
+     * @param {Object} [options={}] The options object.
+     * @param {boolean} [options.leading=true]
+     *  Specify invoking on the leading edge of the timeout.
+     * @param {boolean} [options.trailing=true]
+     *  Specify invoking on the trailing edge of the timeout.
+     * @returns {Function} Returns the new throttled function.
+     * @example
+     *
+     * // Avoid excessively updating the position while scrolling.
+     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
+     *
+     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
+     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
+     * jQuery(element).on('click', throttled);
+     *
+     * // Cancel the trailing throttled invocation.
+     * jQuery(window).on('popstate', throttled.cancel);
+     */
+    function throttle(func, wait, options) {
+      var leading = true,
+          trailing = true;
+
+      if (typeof func != 'function') {
+        throw new TypeError(FUNC_ERROR_TEXT);
+      }
+      if (isObject(options)) {
+        leading = 'leading' in options ? !!options.leading : leading;
+        trailing = 'trailing' in options ? !!options.trailing : trailing;
+      }
+      return debounce(func, wait, {
+        'leading': leading,
+        'maxWait': wait,
+        'trailing': trailing
+      });
+    }
+
+    /**
+     * Creates a function that accepts up to one argument, ignoring any
+     * additional arguments.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Function
+     * @param {Function} func The function to cap arguments for.
+     * @returns {Function} Returns the new capped function.
+     * @example
+     *
+     * _.map(['6', '8', '10'], _.unary(parseInt));
+     * // => [6, 8, 10]
+     */
+    function unary(func) {
+      return ary(func, 1);
+    }
+
+    /**
+     * Creates a function that provides `value` to `wrapper` as its first
+     * argument. Any additional arguments provided to the function are appended
+     * to those provided to the `wrapper`. The wrapper is invoked with the `this`
+     * binding of the created function.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Function
+     * @param {*} value The value to wrap.
+     * @param {Function} [wrapper=identity] The wrapper function.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var p = _.wrap(_.escape, function(func, text) {
+     *   return '<p>' + func(text) + '</p>';
+     * });
+     *
+     * p('fred, barney, & pebbles');
+     * // => '<p>fred, barney, &amp; pebbles</p>'
+     */
+    function wrap(value, wrapper) {
+      return partial(castFunction(wrapper), value);
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Casts `value` as an array if it's not one.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.4.0
+     * @category Lang
+     * @param {*} value The value to inspect.
+     * @returns {Array} Returns the cast array.
+     * @example
+     *
+     * _.castArray(1);
+     * // => [1]
+     *
+     * _.castArray({ 'a': 1 });
+     * // => [{ 'a': 1 }]
+     *
+     * _.castArray('abc');
+     * // => ['abc']
+     *
+     * _.castArray(null);
+     * // => [null]
+     *
+     * _.castArray(undefined);
+     * // => [undefined]
+     *
+     * _.castArray();
+     * // => []
+     *
+     * var array = [1, 2, 3];
+     * console.log(_.castArray(array) === array);
+     * // => true
+     */
+    function castArray() {
+      if (!arguments.length) {
+        return [];
+      }
+      var value = arguments[0];
+      return isArray(value) ? value : [value];
+    }
+
+    /**
+     * Creates a shallow clone of `value`.
+     *
+     * **Note:** This method is loosely based on the
+     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
+     * and supports cloning arrays, array buffers, booleans, date objects, maps,
+     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
+     * arrays. The own enumerable properties of `arguments` objects are cloned
+     * as plain objects. An empty object is returned for uncloneable values such
+     * as error objects, functions, DOM nodes, and WeakMaps.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to clone.
+     * @returns {*} Returns the cloned value.
+     * @see _.cloneDeep
+     * @example
+     *
+     * var objects = [{ 'a': 1 }, { 'b': 2 }];
+     *
+     * var shallow = _.clone(objects);
+     * console.log(shallow[0] === objects[0]);
+     * // => true
+     */
+    function clone(value) {
+      return baseClone(value, CLONE_SYMBOLS_FLAG);
+    }
+
+    /**
+     * This method is like `_.clone` except that it accepts `customizer` which
+     * is invoked to produce the cloned value. If `customizer` returns `undefined`,
+     * cloning is handled by the method instead. The `customizer` is invoked with
+     * up to four arguments; (value [, index|key, object, stack]).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to clone.
+     * @param {Function} [customizer] The function to customize cloning.
+     * @returns {*} Returns the cloned value.
+     * @see _.cloneDeepWith
+     * @example
+     *
+     * function customizer(value) {
+     *   if (_.isElement(value)) {
+     *     return value.cloneNode(false);
+     *   }
+     * }
+     *
+     * var el = _.cloneWith(document.body, customizer);
+     *
+     * console.log(el === document.body);
+     * // => false
+     * console.log(el.nodeName);
+     * // => 'BODY'
+     * console.log(el.childNodes.length);
+     * // => 0
+     */
+    function cloneWith(value, customizer) {
+      customizer = typeof customizer == 'function' ? customizer : undefined;
+      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
+    }
+
+    /**
+     * This method is like `_.clone` except that it recursively clones `value`.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.0.0
+     * @category Lang
+     * @param {*} value The value to recursively clone.
+     * @returns {*} Returns the deep cloned value.
+     * @see _.clone
+     * @example
+     *
+     * var objects = [{ 'a': 1 }, { 'b': 2 }];
+     *
+     * var deep = _.cloneDeep(objects);
+     * console.log(deep[0] === objects[0]);
+     * // => false
+     */
+    function cloneDeep(value) {
+      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
+    }
+
+    /**
+     * This method is like `_.cloneWith` except that it recursively clones `value`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to recursively clone.
+     * @param {Function} [customizer] The function to customize cloning.
+     * @returns {*} Returns the deep cloned value.
+     * @see _.cloneWith
+     * @example
+     *
+     * function customizer(value) {
+     *   if (_.isElement(value)) {
+     *     return value.cloneNode(true);
+     *   }
+     * }
+     *
+     * var el = _.cloneDeepWith(document.body, customizer);
+     *
+     * console.log(el === document.body);
+     * // => false
+     * console.log(el.nodeName);
+     * // => 'BODY'
+     * console.log(el.childNodes.length);
+     * // => 20
+     */
+    function cloneDeepWith(value, customizer) {
+      customizer = typeof customizer == 'function' ? customizer : undefined;
+      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
+    }
+
+    /**
+     * Checks if `object` conforms to `source` by invoking the predicate
+     * properties of `source` with the corresponding property values of `object`.
+     *
+     * **Note:** This method is equivalent to `_.conforms` when `source` is
+     * partially applied.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.14.0
+     * @category Lang
+     * @param {Object} object The object to inspect.
+     * @param {Object} source The object of property predicates to conform to.
+     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': 2 };
+     *
+     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
+     * // => true
+     *
+     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
+     * // => false
+     */
+    function conformsTo(object, source) {
+      return source == null || baseConformsTo(object, source, keys(source));
+    }
+
+    /**
+     * Performs a
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+     * comparison between two values to determine if they are equivalent.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     * @example
+     *
+     * var object = { 'a': 1 };
+     * var other = { 'a': 1 };
+     *
+     * _.eq(object, object);
+     * // => true
+     *
+     * _.eq(object, other);
+     * // => false
+     *
+     * _.eq('a', 'a');
+     * // => true
+     *
+     * _.eq('a', Object('a'));
+     * // => false
+     *
+     * _.eq(NaN, NaN);
+     * // => true
+     */
+    function eq(value, other) {
+      return value === other || (value !== value && other !== other);
+    }
+
+    /**
+     * Checks if `value` is greater than `other`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.9.0
+     * @category Lang
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if `value` is greater than `other`,
+     *  else `false`.
+     * @see _.lt
+     * @example
+     *
+     * _.gt(3, 1);
+     * // => true
+     *
+     * _.gt(3, 3);
+     * // => false
+     *
+     * _.gt(1, 3);
+     * // => false
+     */
+    var gt = createRelationalOperation(baseGt);
+
+    /**
+     * Checks if `value` is greater than or equal to `other`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.9.0
+     * @category Lang
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if `value` is greater than or equal to
+     *  `other`, else `false`.
+     * @see _.lte
+     * @example
+     *
+     * _.gte(3, 1);
+     * // => true
+     *
+     * _.gte(3, 3);
+     * // => true
+     *
+     * _.gte(1, 3);
+     * // => false
+     */
+    var gte = createRelationalOperation(function(value, other) {
+      return value >= other;
+    });
+
+    /**
+     * Checks if `value` is likely an `arguments` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+     *  else `false`.
+     * @example
+     *
+     * _.isArguments(function() { return arguments; }());
+     * // => true
+     *
+     * _.isArguments([1, 2, 3]);
+     * // => false
+     */
+    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
+      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
+        !propertyIsEnumerable.call(value, 'callee');
+    };
+
+    /**
+     * Checks if `value` is classified as an `Array` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an array, else `false`.
+     * @example
+     *
+     * _.isArray([1, 2, 3]);
+     * // => true
+     *
+     * _.isArray(document.body.children);
+     * // => false
+     *
+     * _.isArray('abc');
+     * // => false
+     *
+     * _.isArray(_.noop);
+     * // => false
+     */
+    var isArray = Array.isArray;
+
+    /**
+     * Checks if `value` is classified as an `ArrayBuffer` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.3.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
+     * @example
+     *
+     * _.isArrayBuffer(new ArrayBuffer(2));
+     * // => true
+     *
+     * _.isArrayBuffer(new Array(2));
+     * // => false
+     */
+    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;
+
+    /**
+     * Checks if `value` is array-like. A value is considered array-like if it's
+     * not a function and has a `value.length` that's an integer greater than or
+     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+     * @example
+     *
+     * _.isArrayLike([1, 2, 3]);
+     * // => true
+     *
+     * _.isArrayLike(document.body.children);
+     * // => true
+     *
+     * _.isArrayLike('abc');
+     * // => true
+     *
+     * _.isArrayLike(_.noop);
+     * // => false
+     */
+    function isArrayLike(value) {
+      return value != null && isLength(value.length) && !isFunction(value);
+    }
+
+    /**
+     * This method is like `_.isArrayLike` except that it also checks if `value`
+     * is an object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an array-like object,
+     *  else `false`.
+     * @example
+     *
+     * _.isArrayLikeObject([1, 2, 3]);
+     * // => true
+     *
+     * _.isArrayLikeObject(document.body.children);
+     * // => true
+     *
+     * _.isArrayLikeObject('abc');
+     * // => false
+     *
+     * _.isArrayLikeObject(_.noop);
+     * // => false
+     */
+    function isArrayLikeObject(value) {
+      return isObjectLike(value) && isArrayLike(value);
+    }
+
+    /**
+     * Checks if `value` is classified as a boolean primitive or object.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
+     * @example
+     *
+     * _.isBoolean(false);
+     * // => true
+     *
+     * _.isBoolean(null);
+     * // => false
+     */
+    function isBoolean(value) {
+      return value === true || value === false ||
+        (isObjectLike(value) && baseGetTag(value) == boolTag);
+    }
+
+    /**
+     * Checks if `value` is a buffer.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.3.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
+     * @example
+     *
+     * _.isBuffer(new Buffer(2));
+     * // => true
+     *
+     * _.isBuffer(new Uint8Array(2));
+     * // => false
+     */
+    var isBuffer = nativeIsBuffer || stubFalse;
+
+    /**
+     * Checks if `value` is classified as a `Date` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
+     * @example
+     *
+     * _.isDate(new Date);
+     * // => true
+     *
+     * _.isDate('Mon April 23 2012');
+     * // => false
+     */
+    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;
+
+    /**
+     * Checks if `value` is likely a DOM element.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
+     * @example
+     *
+     * _.isElement(document.body);
+     * // => true
+     *
+     * _.isElement('<body>');
+     * // => false
+     */
+    function isElement(value) {
+      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
+    }
+
+    /**
+     * Checks if `value` is an empty object, collection, map, or set.
+     *
+     * Objects are considered empty if they have no own enumerable string keyed
+     * properties.
+     *
+     * Array-like values such as `arguments` objects, arrays, buffers, strings, or
+     * jQuery-like collections are considered empty if they have a `length` of `0`.
+     * Similarly, maps and sets are considered empty if they have a `size` of `0`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
+     * @example
+     *
+     * _.isEmpty(null);
+     * // => true
+     *
+     * _.isEmpty(true);
+     * // => true
+     *
+     * _.isEmpty(1);
+     * // => true
+     *
+     * _.isEmpty([1, 2, 3]);
+     * // => false
+     *
+     * _.isEmpty({ 'a': 1 });
+     * // => false
+     */
+    function isEmpty(value) {
+      if (value == null) {
+        return true;
+      }
+      if (isArrayLike(value) &&
+          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
+            isBuffer(value) || isTypedArray(value) || isArguments(value))) {
+        return !value.length;
+      }
+      var tag = getTag(value);
+      if (tag == mapTag || tag == setTag) {
+        return !value.size;
+      }
+      if (isPrototype(value)) {
+        return !baseKeys(value).length;
+      }
+      for (var key in value) {
+        if (hasOwnProperty.call(value, key)) {
+          return false;
+        }
+      }
+      return true;
+    }
+
+    /**
+     * Performs a deep comparison between two values to determine if they are
+     * equivalent.
+     *
+     * **Note:** This method supports comparing arrays, array buffers, booleans,
+     * date objects, error objects, maps, numbers, `Object` objects, regexes,
+     * sets, strings, symbols, and typed arrays. `Object` objects are compared
+     * by their own, not inherited, enumerable properties. Functions and DOM
+     * nodes are compared by strict equality, i.e. `===`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     * @example
+     *
+     * var object = { 'a': 1 };
+     * var other = { 'a': 1 };
+     *
+     * _.isEqual(object, other);
+     * // => true
+     *
+     * object === other;
+     * // => false
+     */
+    function isEqual(value, other) {
+      return baseIsEqual(value, other);
+    }
+
+    /**
+     * This method is like `_.isEqual` except that it accepts `customizer` which
+     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
+     * are handled by the method instead. The `customizer` is invoked with up to
+     * six arguments: (objValue, othValue [, index|key, object, other, stack]).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @param {Function} [customizer] The function to customize comparisons.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+     * @example
+     *
+     * function isGreeting(value) {
+     *   return /^h(?:i|ello)$/.test(value);
+     * }
+     *
+     * function customizer(objValue, othValue) {
+     *   if (isGreeting(objValue) && isGreeting(othValue)) {
+     *     return true;
+     *   }
+     * }
+     *
+     * var array = ['hello', 'goodbye'];
+     * var other = ['hi', 'goodbye'];
+     *
+     * _.isEqualWith(array, other, customizer);
+     * // => true
+     */
+    function isEqualWith(value, other, customizer) {
+      customizer = typeof customizer == 'function' ? customizer : undefined;
+      var result = customizer ? customizer(value, other) : undefined;
+      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
+    }
+
+    /**
+     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
+     * `SyntaxError`, `TypeError`, or `URIError` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
+     * @example
+     *
+     * _.isError(new Error);
+     * // => true
+     *
+     * _.isError(Error);
+     * // => false
+     */
+    function isError(value) {
+      if (!isObjectLike(value)) {
+        return false;
+      }
+      var tag = baseGetTag(value);
+      return tag == errorTag || tag == domExcTag ||
+        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
+    }
+
+    /**
+     * Checks if `value` is a finite primitive number.
+     *
+     * **Note:** This method is based on
+     * [`Number.isFinite`](https://mdn.io/Number/isFinite).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
+     * @example
+     *
+     * _.isFinite(3);
+     * // => true
+     *
+     * _.isFinite(Number.MIN_VALUE);
+     * // => true
+     *
+     * _.isFinite(Infinity);
+     * // => false
+     *
+     * _.isFinite('3');
+     * // => false
+     */
+    function isFinite(value) {
+      return typeof value == 'number' && nativeIsFinite(value);
+    }
+
+    /**
+     * Checks if `value` is classified as a `Function` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a function, else `false`.
+     * @example
+     *
+     * _.isFunction(_);
+     * // => true
+     *
+     * _.isFunction(/abc/);
+     * // => false
+     */
+    function isFunction(value) {
+      if (!isObject(value)) {
+        return false;
+      }
+      // The use of `Object#toString` avoids issues with the `typeof` operator
+      // in Safari 9 which returns 'object' for typed arrays and other constructors.
+      var tag = baseGetTag(value);
+      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
+    }
+
+    /**
+     * Checks if `value` is an integer.
+     *
+     * **Note:** This method is based on
+     * [`Number.isInteger`](https://mdn.io/Number/isInteger).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
+     * @example
+     *
+     * _.isInteger(3);
+     * // => true
+     *
+     * _.isInteger(Number.MIN_VALUE);
+     * // => false
+     *
+     * _.isInteger(Infinity);
+     * // => false
+     *
+     * _.isInteger('3');
+     * // => false
+     */
+    function isInteger(value) {
+      return typeof value == 'number' && value == toInteger(value);
+    }
+
+    /**
+     * Checks if `value` is a valid array-like length.
+     *
+     * **Note:** This method is loosely based on
+     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+     * @example
+     *
+     * _.isLength(3);
+     * // => true
+     *
+     * _.isLength(Number.MIN_VALUE);
+     * // => false
+     *
+     * _.isLength(Infinity);
+     * // => false
+     *
+     * _.isLength('3');
+     * // => false
+     */
+    function isLength(value) {
+      return typeof value == 'number' &&
+        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+    }
+
+    /**
+     * Checks if `value` is the
+     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
+     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+     * @example
+     *
+     * _.isObject({});
+     * // => true
+     *
+     * _.isObject([1, 2, 3]);
+     * // => true
+     *
+     * _.isObject(_.noop);
+     * // => true
+     *
+     * _.isObject(null);
+     * // => false
+     */
+    function isObject(value) {
+      var type = typeof value;
+      return value != null && (type == 'object' || type == 'function');
+    }
+
+    /**
+     * Checks if `value` is object-like. A value is object-like if it's not `null`
+     * and has a `typeof` result of "object".
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+     * @example
+     *
+     * _.isObjectLike({});
+     * // => true
+     *
+     * _.isObjectLike([1, 2, 3]);
+     * // => true
+     *
+     * _.isObjectLike(_.noop);
+     * // => false
+     *
+     * _.isObjectLike(null);
+     * // => false
+     */
+    function isObjectLike(value) {
+      return value != null && typeof value == 'object';
+    }
+
+    /**
+     * Checks if `value` is classified as a `Map` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.3.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
+     * @example
+     *
+     * _.isMap(new Map);
+     * // => true
+     *
+     * _.isMap(new WeakMap);
+     * // => false
+     */
+    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;
+
+    /**
+     * Performs a partial deep comparison between `object` and `source` to
+     * determine if `object` contains equivalent property values.
+     *
+     * **Note:** This method is equivalent to `_.matches` when `source` is
+     * partially applied.
+     *
+     * Partial comparisons will match empty array and empty object `source`
+     * values against any array or object value, respectively. See `_.isEqual`
+     * for a list of supported value comparisons.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Lang
+     * @param {Object} object The object to inspect.
+     * @param {Object} source The object of property values to match.
+     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': 2 };
+     *
+     * _.isMatch(object, { 'b': 2 });
+     * // => true
+     *
+     * _.isMatch(object, { 'b': 1 });
+     * // => false
+     */
+    function isMatch(object, source) {
+      return object === source || baseIsMatch(object, source, getMatchData(source));
+    }
+
+    /**
+     * This method is like `_.isMatch` except that it accepts `customizer` which
+     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
+     * are handled by the method instead. The `customizer` is invoked with five
+     * arguments: (objValue, srcValue, index|key, object, source).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {Object} object The object to inspect.
+     * @param {Object} source The object of property values to match.
+     * @param {Function} [customizer] The function to customize comparisons.
+     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
+     * @example
+     *
+     * function isGreeting(value) {
+     *   return /^h(?:i|ello)$/.test(value);
+     * }
+     *
+     * function customizer(objValue, srcValue) {
+     *   if (isGreeting(objValue) && isGreeting(srcValue)) {
+     *     return true;
+     *   }
+     * }
+     *
+     * var object = { 'greeting': 'hello' };
+     * var source = { 'greeting': 'hi' };
+     *
+     * _.isMatchWith(object, source, customizer);
+     * // => true
+     */
+    function isMatchWith(object, source, customizer) {
+      customizer = typeof customizer == 'function' ? customizer : undefined;
+      return baseIsMatch(object, source, getMatchData(source), customizer);
+    }
+
+    /**
+     * Checks if `value` is `NaN`.
+     *
+     * **Note:** This method is based on
+     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
+     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
+     * `undefined` and other non-number values.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
+     * @example
+     *
+     * _.isNaN(NaN);
+     * // => true
+     *
+     * _.isNaN(new Number(NaN));
+     * // => true
+     *
+     * isNaN(undefined);
+     * // => true
+     *
+     * _.isNaN(undefined);
+     * // => false
+     */
+    function isNaN(value) {
+      // An `NaN` primitive is the only value that is not equal to itself.
+      // Perform the `toStringTag` check first to avoid errors with some
+      // ActiveX objects in IE.
+      return isNumber(value) && value != +value;
+    }
+
+    /**
+     * Checks if `value` is a pristine native function.
+     *
+     * **Note:** This method can't reliably detect native functions in the presence
+     * of the core-js package because core-js circumvents this kind of detection.
+     * Despite multiple requests, the core-js maintainer has made it clear: any
+     * attempt to fix the detection will be obstructed. As a result, we're left
+     * with little choice but to throw an error. Unfortunately, this also affects
+     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
+     * which rely on core-js.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a native function,
+     *  else `false`.
+     * @example
+     *
+     * _.isNative(Array.prototype.push);
+     * // => true
+     *
+     * _.isNative(_);
+     * // => false
+     */
+    function isNative(value) {
+      if (isMaskable(value)) {
+        throw new Error(CORE_ERROR_TEXT);
+      }
+      return baseIsNative(value);
+    }
+
+    /**
+     * Checks if `value` is `null`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
+     * @example
+     *
+     * _.isNull(null);
+     * // => true
+     *
+     * _.isNull(void 0);
+     * // => false
+     */
+    function isNull(value) {
+      return value === null;
+    }
+
+    /**
+     * Checks if `value` is `null` or `undefined`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
+     * @example
+     *
+     * _.isNil(null);
+     * // => true
+     *
+     * _.isNil(void 0);
+     * // => true
+     *
+     * _.isNil(NaN);
+     * // => false
+     */
+    function isNil(value) {
+      return value == null;
+    }
+
+    /**
+     * Checks if `value` is classified as a `Number` primitive or object.
+     *
+     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
+     * classified as numbers, use the `_.isFinite` method.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a number, else `false`.
+     * @example
+     *
+     * _.isNumber(3);
+     * // => true
+     *
+     * _.isNumber(Number.MIN_VALUE);
+     * // => true
+     *
+     * _.isNumber(Infinity);
+     * // => true
+     *
+     * _.isNumber('3');
+     * // => false
+     */
+    function isNumber(value) {
+      return typeof value == 'number' ||
+        (isObjectLike(value) && baseGetTag(value) == numberTag);
+    }
+
+    /**
+     * Checks if `value` is a plain object, that is, an object created by the
+     * `Object` constructor or one with a `[[Prototype]]` of `null`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.8.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     * }
+     *
+     * _.isPlainObject(new Foo);
+     * // => false
+     *
+     * _.isPlainObject([1, 2, 3]);
+     * // => false
+     *
+     * _.isPlainObject({ 'x': 0, 'y': 0 });
+     * // => true
+     *
+     * _.isPlainObject(Object.create(null));
+     * // => true
+     */
+    function isPlainObject(value) {
+      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
+        return false;
+      }
+      var proto = getPrototype(value);
+      if (proto === null) {
+        return true;
+      }
+      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
+      return typeof Ctor == 'function' && Ctor instanceof Ctor &&
+        funcToString.call(Ctor) == objectCtorString;
+    }
+
+    /**
+     * Checks if `value` is classified as a `RegExp` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.1.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
+     * @example
+     *
+     * _.isRegExp(/abc/);
+     * // => true
+     *
+     * _.isRegExp('/abc/');
+     * // => false
+     */
+    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;
+
+    /**
+     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
+     * double precision number which isn't the result of a rounded unsafe integer.
+     *
+     * **Note:** This method is based on
+     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
+     * @example
+     *
+     * _.isSafeInteger(3);
+     * // => true
+     *
+     * _.isSafeInteger(Number.MIN_VALUE);
+     * // => false
+     *
+     * _.isSafeInteger(Infinity);
+     * // => false
+     *
+     * _.isSafeInteger('3');
+     * // => false
+     */
+    function isSafeInteger(value) {
+      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
+    }
+
+    /**
+     * Checks if `value` is classified as a `Set` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.3.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
+     * @example
+     *
+     * _.isSet(new Set);
+     * // => true
+     *
+     * _.isSet(new WeakSet);
+     * // => false
+     */
+    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;
+
+    /**
+     * Checks if `value` is classified as a `String` primitive or object.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a string, else `false`.
+     * @example
+     *
+     * _.isString('abc');
+     * // => true
+     *
+     * _.isString(1);
+     * // => false
+     */
+    function isString(value) {
+      return typeof value == 'string' ||
+        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
+    }
+
+    /**
+     * Checks if `value` is classified as a `Symbol` primitive or object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
+     * @example
+     *
+     * _.isSymbol(Symbol.iterator);
+     * // => true
+     *
+     * _.isSymbol('abc');
+     * // => false
+     */
+    function isSymbol(value) {
+      return typeof value == 'symbol' ||
+        (isObjectLike(value) && baseGetTag(value) == symbolTag);
+    }
+
+    /**
+     * Checks if `value` is classified as a typed array.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+     * @example
+     *
+     * _.isTypedArray(new Uint8Array);
+     * // => true
+     *
+     * _.isTypedArray([]);
+     * // => false
+     */
+    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;
+
+    /**
+     * Checks if `value` is `undefined`.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
+     * @example
+     *
+     * _.isUndefined(void 0);
+     * // => true
+     *
+     * _.isUndefined(null);
+     * // => false
+     */
+    function isUndefined(value) {
+      return value === undefined;
+    }
+
+    /**
+     * Checks if `value` is classified as a `WeakMap` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.3.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
+     * @example
+     *
+     * _.isWeakMap(new WeakMap);
+     * // => true
+     *
+     * _.isWeakMap(new Map);
+     * // => false
+     */
+    function isWeakMap(value) {
+      return isObjectLike(value) && getTag(value) == weakMapTag;
+    }
+
+    /**
+     * Checks if `value` is classified as a `WeakSet` object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.3.0
+     * @category Lang
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
+     * @example
+     *
+     * _.isWeakSet(new WeakSet);
+     * // => true
+     *
+     * _.isWeakSet(new Set);
+     * // => false
+     */
+    function isWeakSet(value) {
+      return isObjectLike(value) && baseGetTag(value) == weakSetTag;
+    }
+
+    /**
+     * Checks if `value` is less than `other`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.9.0
+     * @category Lang
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if `value` is less than `other`,
+     *  else `false`.
+     * @see _.gt
+     * @example
+     *
+     * _.lt(1, 3);
+     * // => true
+     *
+     * _.lt(3, 3);
+     * // => false
+     *
+     * _.lt(3, 1);
+     * // => false
+     */
+    var lt = createRelationalOperation(baseLt);
+
+    /**
+     * Checks if `value` is less than or equal to `other`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.9.0
+     * @category Lang
+     * @param {*} value The value to compare.
+     * @param {*} other The other value to compare.
+     * @returns {boolean} Returns `true` if `value` is less than or equal to
+     *  `other`, else `false`.
+     * @see _.gte
+     * @example
+     *
+     * _.lte(1, 3);
+     * // => true
+     *
+     * _.lte(3, 3);
+     * // => true
+     *
+     * _.lte(3, 1);
+     * // => false
+     */
+    var lte = createRelationalOperation(function(value, other) {
+      return value <= other;
+    });
+
+    /**
+     * Converts `value` to an array.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {Array} Returns the converted array.
+     * @example
+     *
+     * _.toArray({ 'a': 1, 'b': 2 });
+     * // => [1, 2]
+     *
+     * _.toArray('abc');
+     * // => ['a', 'b', 'c']
+     *
+     * _.toArray(1);
+     * // => []
+     *
+     * _.toArray(null);
+     * // => []
+     */
+    function toArray(value) {
+      if (!value) {
+        return [];
+      }
+      if (isArrayLike(value)) {
+        return isString(value) ? stringToArray(value) : copyArray(value);
+      }
+      if (symIterator && value[symIterator]) {
+        return iteratorToArray(value[symIterator]());
+      }
+      var tag = getTag(value),
+          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);
+
+      return func(value);
+    }
+
+    /**
+     * Converts `value` to a finite number.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.12.0
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {number} Returns the converted number.
+     * @example
+     *
+     * _.toFinite(3.2);
+     * // => 3.2
+     *
+     * _.toFinite(Number.MIN_VALUE);
+     * // => 5e-324
+     *
+     * _.toFinite(Infinity);
+     * // => 1.7976931348623157e+308
+     *
+     * _.toFinite('3.2');
+     * // => 3.2
+     */
+    function toFinite(value) {
+      if (!value) {
+        return value === 0 ? value : 0;
+      }
+      value = toNumber(value);
+      if (value === INFINITY || value === -INFINITY) {
+        var sign = (value < 0 ? -1 : 1);
+        return sign * MAX_INTEGER;
+      }
+      return value === value ? value : 0;
+    }
+
+    /**
+     * Converts `value` to an integer.
+     *
+     * **Note:** This method is loosely based on
+     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {number} Returns the converted integer.
+     * @example
+     *
+     * _.toInteger(3.2);
+     * // => 3
+     *
+     * _.toInteger(Number.MIN_VALUE);
+     * // => 0
+     *
+     * _.toInteger(Infinity);
+     * // => 1.7976931348623157e+308
+     *
+     * _.toInteger('3.2');
+     * // => 3
+     */
+    function toInteger(value) {
+      var result = toFinite(value),
+          remainder = result % 1;
+
+      return result === result ? (remainder ? result - remainder : result) : 0;
+    }
+
+    /**
+     * Converts `value` to an integer suitable for use as the length of an
+     * array-like object.
+     *
+     * **Note:** This method is based on
+     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {number} Returns the converted integer.
+     * @example
+     *
+     * _.toLength(3.2);
+     * // => 3
+     *
+     * _.toLength(Number.MIN_VALUE);
+     * // => 0
+     *
+     * _.toLength(Infinity);
+     * // => 4294967295
+     *
+     * _.toLength('3.2');
+     * // => 3
+     */
+    function toLength(value) {
+      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
+    }
+
+    /**
+     * Converts `value` to a number.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to process.
+     * @returns {number} Returns the number.
+     * @example
+     *
+     * _.toNumber(3.2);
+     * // => 3.2
+     *
+     * _.toNumber(Number.MIN_VALUE);
+     * // => 5e-324
+     *
+     * _.toNumber(Infinity);
+     * // => Infinity
+     *
+     * _.toNumber('3.2');
+     * // => 3.2
+     */
+    function toNumber(value) {
+      if (typeof value == 'number') {
+        return value;
+      }
+      if (isSymbol(value)) {
+        return NAN;
+      }
+      if (isObject(value)) {
+        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
+        value = isObject(other) ? (other + '') : other;
+      }
+      if (typeof value != 'string') {
+        return value === 0 ? value : +value;
+      }
+      value = value.replace(reTrim, '');
+      var isBinary = reIsBinary.test(value);
+      return (isBinary || reIsOctal.test(value))
+        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
+        : (reIsBadHex.test(value) ? NAN : +value);
+    }
+
+    /**
+     * Converts `value` to a plain object flattening inherited enumerable string
+     * keyed properties of `value` to own properties of the plain object.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {Object} Returns the converted plain object.
+     * @example
+     *
+     * function Foo() {
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.assign({ 'a': 1 }, new Foo);
+     * // => { 'a': 1, 'b': 2 }
+     *
+     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
+     * // => { 'a': 1, 'b': 2, 'c': 3 }
+     */
+    function toPlainObject(value) {
+      return copyObject(value, keysIn(value));
+    }
+
+    /**
+     * Converts `value` to a safe integer. A safe integer can be compared and
+     * represented correctly.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {number} Returns the converted integer.
+     * @example
+     *
+     * _.toSafeInteger(3.2);
+     * // => 3
+     *
+     * _.toSafeInteger(Number.MIN_VALUE);
+     * // => 0
+     *
+     * _.toSafeInteger(Infinity);
+     * // => 9007199254740991
+     *
+     * _.toSafeInteger('3.2');
+     * // => 3
+     */
+    function toSafeInteger(value) {
+      return value
+        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
+        : (value === 0 ? value : 0);
+    }
+
+    /**
+     * Converts `value` to a string. An empty string is returned for `null`
+     * and `undefined` values. The sign of `-0` is preserved.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {string} Returns the converted string.
+     * @example
+     *
+     * _.toString(null);
+     * // => ''
+     *
+     * _.toString(-0);
+     * // => '-0'
+     *
+     * _.toString([1, 2, 3]);
+     * // => '1,2,3'
+     */
+    function toString(value) {
+      return value == null ? '' : baseToString(value);
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Assigns own enumerable string keyed properties of source objects to the
+     * destination object. Source objects are applied from left to right.
+     * Subsequent sources overwrite property assignments of previous sources.
+     *
+     * **Note:** This method mutates `object` and is loosely based on
+     * [`Object.assign`](https://mdn.io/Object/assign).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.10.0
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} [sources] The source objects.
+     * @returns {Object} Returns `object`.
+     * @see _.assignIn
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     * }
+     *
+     * function Bar() {
+     *   this.c = 3;
+     * }
+     *
+     * Foo.prototype.b = 2;
+     * Bar.prototype.d = 4;
+     *
+     * _.assign({ 'a': 0 }, new Foo, new Bar);
+     * // => { 'a': 1, 'c': 3 }
+     */
+    var assign = createAssigner(function(object, source) {
+      if (isPrototype(source) || isArrayLike(source)) {
+        copyObject(source, keys(source), object);
+        return;
+      }
+      for (var key in source) {
+        if (hasOwnProperty.call(source, key)) {
+          assignValue(object, key, source[key]);
+        }
+      }
+    });
+
+    /**
+     * This method is like `_.assign` except that it iterates over own and
+     * inherited source properties.
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @alias extend
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} [sources] The source objects.
+     * @returns {Object} Returns `object`.
+     * @see _.assign
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     * }
+     *
+     * function Bar() {
+     *   this.c = 3;
+     * }
+     *
+     * Foo.prototype.b = 2;
+     * Bar.prototype.d = 4;
+     *
+     * _.assignIn({ 'a': 0 }, new Foo, new Bar);
+     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
+     */
+    var assignIn = createAssigner(function(object, source) {
+      copyObject(source, keysIn(source), object);
+    });
+
+    /**
+     * This method is like `_.assignIn` except that it accepts `customizer`
+     * which is invoked to produce the assigned values. If `customizer` returns
+     * `undefined`, assignment is handled by the method instead. The `customizer`
+     * is invoked with five arguments: (objValue, srcValue, key, object, source).
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @alias extendWith
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} sources The source objects.
+     * @param {Function} [customizer] The function to customize assigned values.
+     * @returns {Object} Returns `object`.
+     * @see _.assignWith
+     * @example
+     *
+     * function customizer(objValue, srcValue) {
+     *   return _.isUndefined(objValue) ? srcValue : objValue;
+     * }
+     *
+     * var defaults = _.partialRight(_.assignInWith, customizer);
+     *
+     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
+     * // => { 'a': 1, 'b': 2 }
+     */
+    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
+      copyObject(source, keysIn(source), object, customizer);
+    });
+
+    /**
+     * This method is like `_.assign` except that it accepts `customizer`
+     * which is invoked to produce the assigned values. If `customizer` returns
+     * `undefined`, assignment is handled by the method instead. The `customizer`
+     * is invoked with five arguments: (objValue, srcValue, key, object, source).
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} sources The source objects.
+     * @param {Function} [customizer] The function to customize assigned values.
+     * @returns {Object} Returns `object`.
+     * @see _.assignInWith
+     * @example
+     *
+     * function customizer(objValue, srcValue) {
+     *   return _.isUndefined(objValue) ? srcValue : objValue;
+     * }
+     *
+     * var defaults = _.partialRight(_.assignWith, customizer);
+     *
+     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
+     * // => { 'a': 1, 'b': 2 }
+     */
+    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
+      copyObject(source, keys(source), object, customizer);
+    });
+
+    /**
+     * Creates an array of values corresponding to `paths` of `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.0.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {...(string|string[])} [paths] The property paths to pick.
+     * @returns {Array} Returns the picked values.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
+     *
+     * _.at(object, ['a[0].b.c', 'a[1]']);
+     * // => [3, 4]
+     */
+    var at = flatRest(baseAt);
+
+    /**
+     * Creates an object that inherits from the `prototype` object. If a
+     * `properties` object is given, its own enumerable string keyed properties
+     * are assigned to the created object.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.3.0
+     * @category Object
+     * @param {Object} prototype The object to inherit from.
+     * @param {Object} [properties] The properties to assign to the object.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * function Circle() {
+     *   Shape.call(this);
+     * }
+     *
+     * Circle.prototype = _.create(Shape.prototype, {
+     *   'constructor': Circle
+     * });
+     *
+     * var circle = new Circle;
+     * circle instanceof Circle;
+     * // => true
+     *
+     * circle instanceof Shape;
+     * // => true
+     */
+    function create(prototype, properties) {
+      var result = baseCreate(prototype);
+      return properties == null ? result : baseAssign(result, properties);
+    }
+
+    /**
+     * Assigns own and inherited enumerable string keyed properties of source
+     * objects to the destination object for all destination properties that
+     * resolve to `undefined`. Source objects are applied from left to right.
+     * Once a property is set, additional values of the same property are ignored.
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} [sources] The source objects.
+     * @returns {Object} Returns `object`.
+     * @see _.defaultsDeep
+     * @example
+     *
+     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
+     * // => { 'a': 1, 'b': 2 }
+     */
+    var defaults = baseRest(function(object, sources) {
+      object = Object(object);
+
+      var index = -1;
+      var length = sources.length;
+      var guard = length > 2 ? sources[2] : undefined;
+
+      if (guard && isIterateeCall(sources[0], sources[1], guard)) {
+        length = 1;
+      }
+
+      while (++index < length) {
+        var source = sources[index];
+        var props = keysIn(source);
+        var propsIndex = -1;
+        var propsLength = props.length;
+
+        while (++propsIndex < propsLength) {
+          var key = props[propsIndex];
+          var value = object[key];
+
+          if (value === undefined ||
+              (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {
+            object[key] = source[key];
+          }
+        }
+      }
+
+      return object;
+    });
+
+    /**
+     * This method is like `_.defaults` except that it recursively assigns
+     * default properties.
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.10.0
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} [sources] The source objects.
+     * @returns {Object} Returns `object`.
+     * @see _.defaults
+     * @example
+     *
+     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
+     * // => { 'a': { 'b': 2, 'c': 3 } }
+     */
+    var defaultsDeep = baseRest(function(args) {
+      args.push(undefined, customDefaultsMerge);
+      return apply(mergeWith, undefined, args);
+    });
+
+    /**
+     * This method is like `_.find` except that it returns the key of the first
+     * element `predicate` returns truthy for instead of the element itself.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.1.0
+     * @category Object
+     * @param {Object} object The object to inspect.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {string|undefined} Returns the key of the matched element,
+     *  else `undefined`.
+     * @example
+     *
+     * var users = {
+     *   'barney':  { 'age': 36, 'active': true },
+     *   'fred':    { 'age': 40, 'active': false },
+     *   'pebbles': { 'age': 1,  'active': true }
+     * };
+     *
+     * _.findKey(users, function(o) { return o.age < 40; });
+     * // => 'barney' (iteration order is not guaranteed)
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.findKey(users, { 'age': 1, 'active': true });
+     * // => 'pebbles'
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.findKey(users, ['active', false]);
+     * // => 'fred'
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.findKey(users, 'active');
+     * // => 'barney'
+     */
+    function findKey(object, predicate) {
+      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
+    }
+
+    /**
+     * This method is like `_.findKey` except that it iterates over elements of
+     * a collection in the opposite order.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Object
+     * @param {Object} object The object to inspect.
+     * @param {Function} [predicate=_.identity] The function invoked per iteration.
+     * @returns {string|undefined} Returns the key of the matched element,
+     *  else `undefined`.
+     * @example
+     *
+     * var users = {
+     *   'barney':  { 'age': 36, 'active': true },
+     *   'fred':    { 'age': 40, 'active': false },
+     *   'pebbles': { 'age': 1,  'active': true }
+     * };
+     *
+     * _.findLastKey(users, function(o) { return o.age < 40; });
+     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.findLastKey(users, { 'age': 36, 'active': true });
+     * // => 'barney'
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.findLastKey(users, ['active', false]);
+     * // => 'fred'
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.findLastKey(users, 'active');
+     * // => 'pebbles'
+     */
+    function findLastKey(object, predicate) {
+      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
+    }
+
+    /**
+     * Iterates over own and inherited enumerable string keyed properties of an
+     * object and invokes `iteratee` for each property. The iteratee is invoked
+     * with three arguments: (value, key, object). Iteratee functions may exit
+     * iteration early by explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.3.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Object} Returns `object`.
+     * @see _.forInRight
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.forIn(new Foo, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
+     */
+    function forIn(object, iteratee) {
+      return object == null
+        ? object
+        : baseFor(object, getIteratee(iteratee, 3), keysIn);
+    }
+
+    /**
+     * This method is like `_.forIn` except that it iterates over properties of
+     * `object` in the opposite order.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Object} Returns `object`.
+     * @see _.forIn
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.forInRight(new Foo, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
+     */
+    function forInRight(object, iteratee) {
+      return object == null
+        ? object
+        : baseForRight(object, getIteratee(iteratee, 3), keysIn);
+    }
+
+    /**
+     * Iterates over own enumerable string keyed properties of an object and
+     * invokes `iteratee` for each property. The iteratee is invoked with three
+     * arguments: (value, key, object). Iteratee functions may exit iteration
+     * early by explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.3.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Object} Returns `object`.
+     * @see _.forOwnRight
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.forOwn(new Foo, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
+     */
+    function forOwn(object, iteratee) {
+      return object && baseForOwn(object, getIteratee(iteratee, 3));
+    }
+
+    /**
+     * This method is like `_.forOwn` except that it iterates over properties of
+     * `object` in the opposite order.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.0.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Object} Returns `object`.
+     * @see _.forOwn
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.forOwnRight(new Foo, function(value, key) {
+     *   console.log(key);
+     * });
+     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
+     */
+    function forOwnRight(object, iteratee) {
+      return object && baseForOwnRight(object, getIteratee(iteratee, 3));
+    }
+
+    /**
+     * Creates an array of function property names from own enumerable properties
+     * of `object`.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns the function names.
+     * @see _.functionsIn
+     * @example
+     *
+     * function Foo() {
+     *   this.a = _.constant('a');
+     *   this.b = _.constant('b');
+     * }
+     *
+     * Foo.prototype.c = _.constant('c');
+     *
+     * _.functions(new Foo);
+     * // => ['a', 'b']
+     */
+    function functions(object) {
+      return object == null ? [] : baseFunctions(object, keys(object));
+    }
+
+    /**
+     * Creates an array of function property names from own and inherited
+     * enumerable properties of `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The object to inspect.
+     * @returns {Array} Returns the function names.
+     * @see _.functions
+     * @example
+     *
+     * function Foo() {
+     *   this.a = _.constant('a');
+     *   this.b = _.constant('b');
+     * }
+     *
+     * Foo.prototype.c = _.constant('c');
+     *
+     * _.functionsIn(new Foo);
+     * // => ['a', 'b', 'c']
+     */
+    function functionsIn(object) {
+      return object == null ? [] : baseFunctions(object, keysIn(object));
+    }
+
+    /**
+     * Gets the value at `path` of `object`. If the resolved value is
+     * `undefined`, the `defaultValue` is returned in its place.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.7.0
+     * @category Object
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path of the property to get.
+     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
+     * @returns {*} Returns the resolved value.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
+     *
+     * _.get(object, 'a[0].b.c');
+     * // => 3
+     *
+     * _.get(object, ['a', '0', 'b', 'c']);
+     * // => 3
+     *
+     * _.get(object, 'a.b.c', 'default');
+     * // => 'default'
+     */
+    function get(object, path, defaultValue) {
+      var result = object == null ? undefined : baseGet(object, path);
+      return result === undefined ? defaultValue : result;
+    }
+
+    /**
+     * Checks if `path` is a direct property of `object`.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path to check.
+     * @returns {boolean} Returns `true` if `path` exists, else `false`.
+     * @example
+     *
+     * var object = { 'a': { 'b': 2 } };
+     * var other = _.create({ 'a': _.create({ 'b': 2 }) });
+     *
+     * _.has(object, 'a');
+     * // => true
+     *
+     * _.has(object, 'a.b');
+     * // => true
+     *
+     * _.has(object, ['a', 'b']);
+     * // => true
+     *
+     * _.has(other, 'a');
+     * // => false
+     */
+    function has(object, path) {
+      return object != null && hasPath(object, path, baseHas);
+    }
+
+    /**
+     * Checks if `path` is a direct or inherited property of `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path to check.
+     * @returns {boolean} Returns `true` if `path` exists, else `false`.
+     * @example
+     *
+     * var object = _.create({ 'a': _.create({ 'b': 2 }) });
+     *
+     * _.hasIn(object, 'a');
+     * // => true
+     *
+     * _.hasIn(object, 'a.b');
+     * // => true
+     *
+     * _.hasIn(object, ['a', 'b']);
+     * // => true
+     *
+     * _.hasIn(object, 'b');
+     * // => false
+     */
+    function hasIn(object, path) {
+      return object != null && hasPath(object, path, baseHasIn);
+    }
+
+    /**
+     * Creates an object composed of the inverted keys and values of `object`.
+     * If `object` contains duplicate values, subsequent values overwrite
+     * property assignments of previous values.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.7.0
+     * @category Object
+     * @param {Object} object The object to invert.
+     * @returns {Object} Returns the new inverted object.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': 2, 'c': 1 };
+     *
+     * _.invert(object);
+     * // => { '1': 'c', '2': 'b' }
+     */
+    var invert = createInverter(function(result, value, key) {
+      if (value != null &&
+          typeof value.toString != 'function') {
+        value = nativeObjectToString.call(value);
+      }
+
+      result[value] = key;
+    }, constant(identity));
+
+    /**
+     * This method is like `_.invert` except that the inverted object is generated
+     * from the results of running each element of `object` thru `iteratee`. The
+     * corresponding inverted value of each inverted key is an array of keys
+     * responsible for generating the inverted value. The iteratee is invoked
+     * with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.1.0
+     * @category Object
+     * @param {Object} object The object to invert.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {Object} Returns the new inverted object.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': 2, 'c': 1 };
+     *
+     * _.invertBy(object);
+     * // => { '1': ['a', 'c'], '2': ['b'] }
+     *
+     * _.invertBy(object, function(value) {
+     *   return 'group' + value;
+     * });
+     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
+     */
+    var invertBy = createInverter(function(result, value, key) {
+      if (value != null &&
+          typeof value.toString != 'function') {
+        value = nativeObjectToString.call(value);
+      }
+
+      if (hasOwnProperty.call(result, value)) {
+        result[value].push(key);
+      } else {
+        result[value] = [key];
+      }
+    }, getIteratee);
+
+    /**
+     * Invokes the method at `path` of `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path of the method to invoke.
+     * @param {...*} [args] The arguments to invoke the method with.
+     * @returns {*} Returns the result of the invoked method.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
+     *
+     * _.invoke(object, 'a[0].b.c.slice', 1, 3);
+     * // => [2, 3]
+     */
+    var invoke = baseRest(baseInvoke);
+
+    /**
+     * Creates an array of the own enumerable property names of `object`.
+     *
+     * **Note:** Non-object values are coerced to objects. See the
+     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+     * for more details.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names.
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.keys(new Foo);
+     * // => ['a', 'b'] (iteration order is not guaranteed)
+     *
+     * _.keys('hi');
+     * // => ['0', '1']
+     */
+    function keys(object) {
+      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
+    }
+
+    /**
+     * Creates an array of the own and inherited enumerable property names of `object`.
+     *
+     * **Note:** Non-object values are coerced to objects.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Object
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names.
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.keysIn(new Foo);
+     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
+     */
+    function keysIn(object) {
+      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
+    }
+
+    /**
+     * The opposite of `_.mapValues`; this method creates an object with the
+     * same values as `object` and keys generated by running each own enumerable
+     * string keyed property of `object` thru `iteratee`. The iteratee is invoked
+     * with three arguments: (value, key, object).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.8.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Object} Returns the new mapped object.
+     * @see _.mapValues
+     * @example
+     *
+     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
+     *   return key + value;
+     * });
+     * // => { 'a1': 1, 'b2': 2 }
+     */
+    function mapKeys(object, iteratee) {
+      var result = {};
+      iteratee = getIteratee(iteratee, 3);
+
+      baseForOwn(object, function(value, key, object) {
+        baseAssignValue(result, iteratee(value, key, object), value);
+      });
+      return result;
+    }
+
+    /**
+     * Creates an object with the same keys as `object` and values generated
+     * by running each own enumerable string keyed property of `object` thru
+     * `iteratee`. The iteratee is invoked with three arguments:
+     * (value, key, object).
+     *
+     * @static
+     * @memberOf _
+     * @since 2.4.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Object} Returns the new mapped object.
+     * @see _.mapKeys
+     * @example
+     *
+     * var users = {
+     *   'fred':    { 'user': 'fred',    'age': 40 },
+     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
+     * };
+     *
+     * _.mapValues(users, function(o) { return o.age; });
+     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.mapValues(users, 'age');
+     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
+     */
+    function mapValues(object, iteratee) {
+      var result = {};
+      iteratee = getIteratee(iteratee, 3);
+
+      baseForOwn(object, function(value, key, object) {
+        baseAssignValue(result, key, iteratee(value, key, object));
+      });
+      return result;
+    }
+
+    /**
+     * This method is like `_.assign` except that it recursively merges own and
+     * inherited enumerable string keyed properties of source objects into the
+     * destination object. Source properties that resolve to `undefined` are
+     * skipped if a destination value exists. Array and plain object properties
+     * are merged recursively. Other objects and value types are overridden by
+     * assignment. Source objects are applied from left to right. Subsequent
+     * sources overwrite property assignments of previous sources.
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.5.0
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} [sources] The source objects.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var object = {
+     *   'a': [{ 'b': 2 }, { 'd': 4 }]
+     * };
+     *
+     * var other = {
+     *   'a': [{ 'c': 3 }, { 'e': 5 }]
+     * };
+     *
+     * _.merge(object, other);
+     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
+     */
+    var merge = createAssigner(function(object, source, srcIndex) {
+      baseMerge(object, source, srcIndex);
+    });
+
+    /**
+     * This method is like `_.merge` except that it accepts `customizer` which
+     * is invoked to produce the merged values of the destination and source
+     * properties. If `customizer` returns `undefined`, merging is handled by the
+     * method instead. The `customizer` is invoked with six arguments:
+     * (objValue, srcValue, key, object, source, stack).
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The destination object.
+     * @param {...Object} sources The source objects.
+     * @param {Function} customizer The function to customize assigned values.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * function customizer(objValue, srcValue) {
+     *   if (_.isArray(objValue)) {
+     *     return objValue.concat(srcValue);
+     *   }
+     * }
+     *
+     * var object = { 'a': [1], 'b': [2] };
+     * var other = { 'a': [3], 'b': [4] };
+     *
+     * _.mergeWith(object, other, customizer);
+     * // => { 'a': [1, 3], 'b': [2, 4] }
+     */
+    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
+      baseMerge(object, source, srcIndex, customizer);
+    });
+
+    /**
+     * The opposite of `_.pick`; this method creates an object composed of the
+     * own and inherited enumerable property paths of `object` that are not omitted.
+     *
+     * **Note:** This method is considerably slower than `_.pick`.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The source object.
+     * @param {...(string|string[])} [paths] The property paths to omit.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': '2', 'c': 3 };
+     *
+     * _.omit(object, ['a', 'c']);
+     * // => { 'b': '2' }
+     */
+    var omit = flatRest(function(object, paths) {
+      var result = {};
+      if (object == null) {
+        return result;
+      }
+      var isDeep = false;
+      paths = arrayMap(paths, function(path) {
+        path = castPath(path, object);
+        isDeep || (isDeep = path.length > 1);
+        return path;
+      });
+      copyObject(object, getAllKeysIn(object), result);
+      if (isDeep) {
+        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
+      }
+      var length = paths.length;
+      while (length--) {
+        baseUnset(result, paths[length]);
+      }
+      return result;
+    });
+
+    /**
+     * The opposite of `_.pickBy`; this method creates an object composed of
+     * the own and inherited enumerable string keyed properties of `object` that
+     * `predicate` doesn't return truthy for. The predicate is invoked with two
+     * arguments: (value, key).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The source object.
+     * @param {Function} [predicate=_.identity] The function invoked per property.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': '2', 'c': 3 };
+     *
+     * _.omitBy(object, _.isNumber);
+     * // => { 'b': '2' }
+     */
+    function omitBy(object, predicate) {
+      return pickBy(object, negate(getIteratee(predicate)));
+    }
+
+    /**
+     * Creates an object composed of the picked `object` properties.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The source object.
+     * @param {...(string|string[])} [paths] The property paths to pick.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': '2', 'c': 3 };
+     *
+     * _.pick(object, ['a', 'c']);
+     * // => { 'a': 1, 'c': 3 }
+     */
+    var pick = flatRest(function(object, paths) {
+      return object == null ? {} : basePick(object, paths);
+    });
+
+    /**
+     * Creates an object composed of the `object` properties `predicate` returns
+     * truthy for. The predicate is invoked with two arguments: (value, key).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The source object.
+     * @param {Function} [predicate=_.identity] The function invoked per property.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * var object = { 'a': 1, 'b': '2', 'c': 3 };
+     *
+     * _.pickBy(object, _.isNumber);
+     * // => { 'a': 1, 'c': 3 }
+     */
+    function pickBy(object, predicate) {
+      if (object == null) {
+        return {};
+      }
+      var props = arrayMap(getAllKeysIn(object), function(prop) {
+        return [prop];
+      });
+      predicate = getIteratee(predicate);
+      return basePickBy(object, props, function(value, path) {
+        return predicate(value, path[0]);
+      });
+    }
+
+    /**
+     * This method is like `_.get` except that if the resolved value is a
+     * function it's invoked with the `this` binding of its parent object and
+     * its result is returned.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The object to query.
+     * @param {Array|string} path The path of the property to resolve.
+     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
+     * @returns {*} Returns the resolved value.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
+     *
+     * _.result(object, 'a[0].b.c1');
+     * // => 3
+     *
+     * _.result(object, 'a[0].b.c2');
+     * // => 4
+     *
+     * _.result(object, 'a[0].b.c3', 'default');
+     * // => 'default'
+     *
+     * _.result(object, 'a[0].b.c3', _.constant('default'));
+     * // => 'default'
+     */
+    function result(object, path, defaultValue) {
+      path = castPath(path, object);
+
+      var index = -1,
+          length = path.length;
+
+      // Ensure the loop is entered when path is empty.
+      if (!length) {
+        length = 1;
+        object = undefined;
+      }
+      while (++index < length) {
+        var value = object == null ? undefined : object[toKey(path[index])];
+        if (value === undefined) {
+          index = length;
+          value = defaultValue;
+        }
+        object = isFunction(value) ? value.call(object) : value;
+      }
+      return object;
+    }
+
+    /**
+     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
+     * it's created. Arrays are created for missing index properties while objects
+     * are created for all other missing properties. Use `_.setWith` to customize
+     * `path` creation.
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.7.0
+     * @category Object
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The path of the property to set.
+     * @param {*} value The value to set.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
+     *
+     * _.set(object, 'a[0].b.c', 4);
+     * console.log(object.a[0].b.c);
+     * // => 4
+     *
+     * _.set(object, ['x', '0', 'y', 'z'], 5);
+     * console.log(object.x[0].y.z);
+     * // => 5
+     */
+    function set(object, path, value) {
+      return object == null ? object : baseSet(object, path, value);
+    }
+
+    /**
+     * This method is like `_.set` except that it accepts `customizer` which is
+     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
+     * path creation is handled by the method instead. The `customizer` is invoked
+     * with three arguments: (nsValue, key, nsObject).
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The path of the property to set.
+     * @param {*} value The value to set.
+     * @param {Function} [customizer] The function to customize assigned values.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var object = {};
+     *
+     * _.setWith(object, '[0][1]', 'a', Object);
+     * // => { '0': { '1': 'a' } }
+     */
+    function setWith(object, path, value, customizer) {
+      customizer = typeof customizer == 'function' ? customizer : undefined;
+      return object == null ? object : baseSet(object, path, value, customizer);
+    }
+
+    /**
+     * Creates an array of own enumerable string keyed-value pairs for `object`
+     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
+     * entries are returned.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @alias entries
+     * @category Object
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the key-value pairs.
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.toPairs(new Foo);
+     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
+     */
+    var toPairs = createToPairs(keys);
+
+    /**
+     * Creates an array of own and inherited enumerable string keyed-value pairs
+     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
+     * or set, its entries are returned.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @alias entriesIn
+     * @category Object
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the key-value pairs.
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.toPairsIn(new Foo);
+     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
+     */
+    var toPairsIn = createToPairs(keysIn);
+
+    /**
+     * An alternative to `_.reduce`; this method transforms `object` to a new
+     * `accumulator` object which is the result of running each of its own
+     * enumerable string keyed properties thru `iteratee`, with each invocation
+     * potentially mutating the `accumulator` object. If `accumulator` is not
+     * provided, a new object with the same `[[Prototype]]` will be used. The
+     * iteratee is invoked with four arguments: (accumulator, value, key, object).
+     * Iteratee functions may exit iteration early by explicitly returning `false`.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.3.0
+     * @category Object
+     * @param {Object} object The object to iterate over.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @param {*} [accumulator] The custom accumulator value.
+     * @returns {*} Returns the accumulated value.
+     * @example
+     *
+     * _.transform([2, 3, 4], function(result, n) {
+     *   result.push(n *= n);
+     *   return n % 2 == 0;
+     * }, []);
+     * // => [4, 9]
+     *
+     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
+     *   (result[value] || (result[value] = [])).push(key);
+     * }, {});
+     * // => { '1': ['a', 'c'], '2': ['b'] }
+     */
+    function transform(object, iteratee, accumulator) {
+      var isArr = isArray(object),
+          isArrLike = isArr || isBuffer(object) || isTypedArray(object);
+
+      iteratee = getIteratee(iteratee, 4);
+      if (accumulator == null) {
+        var Ctor = object && object.constructor;
+        if (isArrLike) {
+          accumulator = isArr ? new Ctor : [];
+        }
+        else if (isObject(object)) {
+          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
+        }
+        else {
+          accumulator = {};
+        }
+      }
+      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
+        return iteratee(accumulator, value, index, object);
+      });
+      return accumulator;
+    }
+
+    /**
+     * Removes the property at `path` of `object`.
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Object
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The path of the property to unset.
+     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c': 7 } }] };
+     * _.unset(object, 'a[0].b.c');
+     * // => true
+     *
+     * console.log(object);
+     * // => { 'a': [{ 'b': {} }] };
+     *
+     * _.unset(object, ['a', '0', 'b', 'c']);
+     * // => true
+     *
+     * console.log(object);
+     * // => { 'a': [{ 'b': {} }] };
+     */
+    function unset(object, path) {
+      return object == null ? true : baseUnset(object, path);
+    }
+
+    /**
+     * This method is like `_.set` except that accepts `updater` to produce the
+     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
+     * is invoked with one argument: (value).
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.6.0
+     * @category Object
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The path of the property to set.
+     * @param {Function} updater The function to produce the updated value.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
+     *
+     * _.update(object, 'a[0].b.c', function(n) { return n * n; });
+     * console.log(object.a[0].b.c);
+     * // => 9
+     *
+     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
+     * console.log(object.x[0].y.z);
+     * // => 0
+     */
+    function update(object, path, updater) {
+      return object == null ? object : baseUpdate(object, path, castFunction(updater));
+    }
+
+    /**
+     * This method is like `_.update` except that it accepts `customizer` which is
+     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
+     * path creation is handled by the method instead. The `customizer` is invoked
+     * with three arguments: (nsValue, key, nsObject).
+     *
+     * **Note:** This method mutates `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.6.0
+     * @category Object
+     * @param {Object} object The object to modify.
+     * @param {Array|string} path The path of the property to set.
+     * @param {Function} updater The function to produce the updated value.
+     * @param {Function} [customizer] The function to customize assigned values.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var object = {};
+     *
+     * _.updateWith(object, '[0][1]', _.constant('a'), Object);
+     * // => { '0': { '1': 'a' } }
+     */
+    function updateWith(object, path, updater, customizer) {
+      customizer = typeof customizer == 'function' ? customizer : undefined;
+      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
+    }
+
+    /**
+     * Creates an array of the own enumerable string keyed property values of `object`.
+     *
+     * **Note:** Non-object values are coerced to objects.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Object
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property values.
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.values(new Foo);
+     * // => [1, 2] (iteration order is not guaranteed)
+     *
+     * _.values('hi');
+     * // => ['h', 'i']
+     */
+    function values(object) {
+      return object == null ? [] : baseValues(object, keys(object));
+    }
+
+    /**
+     * Creates an array of the own and inherited enumerable string keyed property
+     * values of `object`.
+     *
+     * **Note:** Non-object values are coerced to objects.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Object
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property values.
+     * @example
+     *
+     * function Foo() {
+     *   this.a = 1;
+     *   this.b = 2;
+     * }
+     *
+     * Foo.prototype.c = 3;
+     *
+     * _.valuesIn(new Foo);
+     * // => [1, 2, 3] (iteration order is not guaranteed)
+     */
+    function valuesIn(object) {
+      return object == null ? [] : baseValues(object, keysIn(object));
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Clamps `number` within the inclusive `lower` and `upper` bounds.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Number
+     * @param {number} number The number to clamp.
+     * @param {number} [lower] The lower bound.
+     * @param {number} upper The upper bound.
+     * @returns {number} Returns the clamped number.
+     * @example
+     *
+     * _.clamp(-10, -5, 5);
+     * // => -5
+     *
+     * _.clamp(10, -5, 5);
+     * // => 5
+     */
+    function clamp(number, lower, upper) {
+      if (upper === undefined) {
+        upper = lower;
+        lower = undefined;
+      }
+      if (upper !== undefined) {
+        upper = toNumber(upper);
+        upper = upper === upper ? upper : 0;
+      }
+      if (lower !== undefined) {
+        lower = toNumber(lower);
+        lower = lower === lower ? lower : 0;
+      }
+      return baseClamp(toNumber(number), lower, upper);
+    }
+
+    /**
+     * Checks if `n` is between `start` and up to, but not including, `end`. If
+     * `end` is not specified, it's set to `start` with `start` then set to `0`.
+     * If `start` is greater than `end` the params are swapped to support
+     * negative ranges.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.3.0
+     * @category Number
+     * @param {number} number The number to check.
+     * @param {number} [start=0] The start of the range.
+     * @param {number} end The end of the range.
+     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
+     * @see _.range, _.rangeRight
+     * @example
+     *
+     * _.inRange(3, 2, 4);
+     * // => true
+     *
+     * _.inRange(4, 8);
+     * // => true
+     *
+     * _.inRange(4, 2);
+     * // => false
+     *
+     * _.inRange(2, 2);
+     * // => false
+     *
+     * _.inRange(1.2, 2);
+     * // => true
+     *
+     * _.inRange(5.2, 4);
+     * // => false
+     *
+     * _.inRange(-3, -2, -6);
+     * // => true
+     */
+    function inRange(number, start, end) {
+      start = toFinite(start);
+      if (end === undefined) {
+        end = start;
+        start = 0;
+      } else {
+        end = toFinite(end);
+      }
+      number = toNumber(number);
+      return baseInRange(number, start, end);
+    }
+
+    /**
+     * Produces a random number between the inclusive `lower` and `upper` bounds.
+     * If only one argument is provided a number between `0` and the given number
+     * is returned. If `floating` is `true`, or either `lower` or `upper` are
+     * floats, a floating-point number is returned instead of an integer.
+     *
+     * **Note:** JavaScript follows the IEEE-754 standard for resolving
+     * floating-point values which can produce unexpected results.
+     *
+     * @static
+     * @memberOf _
+     * @since 0.7.0
+     * @category Number
+     * @param {number} [lower=0] The lower bound.
+     * @param {number} [upper=1] The upper bound.
+     * @param {boolean} [floating] Specify returning a floating-point number.
+     * @returns {number} Returns the random number.
+     * @example
+     *
+     * _.random(0, 5);
+     * // => an integer between 0 and 5
+     *
+     * _.random(5);
+     * // => also an integer between 0 and 5
+     *
+     * _.random(5, true);
+     * // => a floating-point number between 0 and 5
+     *
+     * _.random(1.2, 5.2);
+     * // => a floating-point number between 1.2 and 5.2
+     */
+    function random(lower, upper, floating) {
+      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
+        upper = floating = undefined;
+      }
+      if (floating === undefined) {
+        if (typeof upper == 'boolean') {
+          floating = upper;
+          upper = undefined;
+        }
+        else if (typeof lower == 'boolean') {
+          floating = lower;
+          lower = undefined;
+        }
+      }
+      if (lower === undefined && upper === undefined) {
+        lower = 0;
+        upper = 1;
+      }
+      else {
+        lower = toFinite(lower);
+        if (upper === undefined) {
+          upper = lower;
+          lower = 0;
+        } else {
+          upper = toFinite(upper);
+        }
+      }
+      if (lower > upper) {
+        var temp = lower;
+        lower = upper;
+        upper = temp;
+      }
+      if (floating || lower % 1 || upper % 1) {
+        var rand = nativeRandom();
+        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
+      }
+      return baseRandom(lower, upper);
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the camel cased string.
+     * @example
+     *
+     * _.camelCase('Foo Bar');
+     * // => 'fooBar'
+     *
+     * _.camelCase('--foo-bar--');
+     * // => 'fooBar'
+     *
+     * _.camelCase('__FOO_BAR__');
+     * // => 'fooBar'
+     */
+    var camelCase = createCompounder(function(result, word, index) {
+      word = word.toLowerCase();
+      return result + (index ? capitalize(word) : word);
+    });
+
+    /**
+     * Converts the first character of `string` to upper case and the remaining
+     * to lower case.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to capitalize.
+     * @returns {string} Returns the capitalized string.
+     * @example
+     *
+     * _.capitalize('FRED');
+     * // => 'Fred'
+     */
+    function capitalize(string) {
+      return upperFirst(toString(string).toLowerCase());
+    }
+
+    /**
+     * Deburrs `string` by converting
+     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
+     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
+     * letters to basic Latin letters and removing
+     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to deburr.
+     * @returns {string} Returns the deburred string.
+     * @example
+     *
+     * _.deburr('déjà vu');
+     * // => 'deja vu'
+     */
+    function deburr(string) {
+      string = toString(string);
+      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
+    }
+
+    /**
+     * Checks if `string` ends with the given target string.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to inspect.
+     * @param {string} [target] The string to search for.
+     * @param {number} [position=string.length] The position to search up to.
+     * @returns {boolean} Returns `true` if `string` ends with `target`,
+     *  else `false`.
+     * @example
+     *
+     * _.endsWith('abc', 'c');
+     * // => true
+     *
+     * _.endsWith('abc', 'b');
+     * // => false
+     *
+     * _.endsWith('abc', 'b', 2);
+     * // => true
+     */
+    function endsWith(string, target, position) {
+      string = toString(string);
+      target = baseToString(target);
+
+      var length = string.length;
+      position = position === undefined
+        ? length
+        : baseClamp(toInteger(position), 0, length);
+
+      var end = position;
+      position -= target.length;
+      return position >= 0 && string.slice(position, end) == target;
+    }
+
+    /**
+     * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
+     * corresponding HTML entities.
+     *
+     * **Note:** No other characters are escaped. To escape additional
+     * characters use a third-party library like [_he_](https://mths.be/he).
+     *
+     * Though the ">" character is escaped for symmetry, characters like
+     * ">" and "/" don't need escaping in HTML and have no special meaning
+     * unless they're part of a tag or unquoted attribute value. See
+     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
+     * (under "semi-related fun fact") for more details.
+     *
+     * When working with HTML you should always
+     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
+     * XSS vectors.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category String
+     * @param {string} [string=''] The string to escape.
+     * @returns {string} Returns the escaped string.
+     * @example
+     *
+     * _.escape('fred, barney, & pebbles');
+     * // => 'fred, barney, &amp; pebbles'
+     */
+    function escape(string) {
+      string = toString(string);
+      return (string && reHasUnescapedHtml.test(string))
+        ? string.replace(reUnescapedHtml, escapeHtmlChar)
+        : string;
+    }
+
+    /**
+     * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
+     * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to escape.
+     * @returns {string} Returns the escaped string.
+     * @example
+     *
+     * _.escapeRegExp('[lodash](https://lodash.com/)');
+     * // => '\[lodash\]\(https://lodash\.com/\)'
+     */
+    function escapeRegExp(string) {
+      string = toString(string);
+      return (string && reHasRegExpChar.test(string))
+        ? string.replace(reRegExpChar, '\\$&')
+        : string;
+    }
+
+    /**
+     * Converts `string` to
+     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the kebab cased string.
+     * @example
+     *
+     * _.kebabCase('Foo Bar');
+     * // => 'foo-bar'
+     *
+     * _.kebabCase('fooBar');
+     * // => 'foo-bar'
+     *
+     * _.kebabCase('__FOO_BAR__');
+     * // => 'foo-bar'
+     */
+    var kebabCase = createCompounder(function(result, word, index) {
+      return result + (index ? '-' : '') + word.toLowerCase();
+    });
+
+    /**
+     * Converts `string`, as space separated words, to lower case.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the lower cased string.
+     * @example
+     *
+     * _.lowerCase('--Foo-Bar--');
+     * // => 'foo bar'
+     *
+     * _.lowerCase('fooBar');
+     * // => 'foo bar'
+     *
+     * _.lowerCase('__FOO_BAR__');
+     * // => 'foo bar'
+     */
+    var lowerCase = createCompounder(function(result, word, index) {
+      return result + (index ? ' ' : '') + word.toLowerCase();
+    });
+
+    /**
+     * Converts the first character of `string` to lower case.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the converted string.
+     * @example
+     *
+     * _.lowerFirst('Fred');
+     * // => 'fred'
+     *
+     * _.lowerFirst('FRED');
+     * // => 'fRED'
+     */
+    var lowerFirst = createCaseFirst('toLowerCase');
+
+    /**
+     * Pads `string` on the left and right sides if it's shorter than `length`.
+     * Padding characters are truncated if they can't be evenly divided by `length`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to pad.
+     * @param {number} [length=0] The padding length.
+     * @param {string} [chars=' '] The string used as padding.
+     * @returns {string} Returns the padded string.
+     * @example
+     *
+     * _.pad('abc', 8);
+     * // => '  abc   '
+     *
+     * _.pad('abc', 8, '_-');
+     * // => '_-abc_-_'
+     *
+     * _.pad('abc', 3);
+     * // => 'abc'
+     */
+    function pad(string, length, chars) {
+      string = toString(string);
+      length = toInteger(length);
+
+      var strLength = length ? stringSize(string) : 0;
+      if (!length || strLength >= length) {
+        return string;
+      }
+      var mid = (length - strLength) / 2;
+      return (
+        createPadding(nativeFloor(mid), chars) +
+        string +
+        createPadding(nativeCeil(mid), chars)
+      );
+    }
+
+    /**
+     * Pads `string` on the right side if it's shorter than `length`. Padding
+     * characters are truncated if they exceed `length`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to pad.
+     * @param {number} [length=0] The padding length.
+     * @param {string} [chars=' '] The string used as padding.
+     * @returns {string} Returns the padded string.
+     * @example
+     *
+     * _.padEnd('abc', 6);
+     * // => 'abc   '
+     *
+     * _.padEnd('abc', 6, '_-');
+     * // => 'abc_-_'
+     *
+     * _.padEnd('abc', 3);
+     * // => 'abc'
+     */
+    function padEnd(string, length, chars) {
+      string = toString(string);
+      length = toInteger(length);
+
+      var strLength = length ? stringSize(string) : 0;
+      return (length && strLength < length)
+        ? (string + createPadding(length - strLength, chars))
+        : string;
+    }
+
+    /**
+     * Pads `string` on the left side if it's shorter than `length`. Padding
+     * characters are truncated if they exceed `length`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to pad.
+     * @param {number} [length=0] The padding length.
+     * @param {string} [chars=' '] The string used as padding.
+     * @returns {string} Returns the padded string.
+     * @example
+     *
+     * _.padStart('abc', 6);
+     * // => '   abc'
+     *
+     * _.padStart('abc', 6, '_-');
+     * // => '_-_abc'
+     *
+     * _.padStart('abc', 3);
+     * // => 'abc'
+     */
+    function padStart(string, length, chars) {
+      string = toString(string);
+      length = toInteger(length);
+
+      var strLength = length ? stringSize(string) : 0;
+      return (length && strLength < length)
+        ? (createPadding(length - strLength, chars) + string)
+        : string;
+    }
+
+    /**
+     * Converts `string` to an integer of the specified radix. If `radix` is
+     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
+     * hexadecimal, in which case a `radix` of `16` is used.
+     *
+     * **Note:** This method aligns with the
+     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
+     *
+     * @static
+     * @memberOf _
+     * @since 1.1.0
+     * @category String
+     * @param {string} string The string to convert.
+     * @param {number} [radix=10] The radix to interpret `value` by.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {number} Returns the converted integer.
+     * @example
+     *
+     * _.parseInt('08');
+     * // => 8
+     *
+     * _.map(['6', '08', '10'], _.parseInt);
+     * // => [6, 8, 10]
+     */
+    function parseInt(string, radix, guard) {
+      if (guard || radix == null) {
+        radix = 0;
+      } else if (radix) {
+        radix = +radix;
+      }
+      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
+    }
+
+    /**
+     * Repeats the given string `n` times.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to repeat.
+     * @param {number} [n=1] The number of times to repeat the string.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {string} Returns the repeated string.
+     * @example
+     *
+     * _.repeat('*', 3);
+     * // => '***'
+     *
+     * _.repeat('abc', 2);
+     * // => 'abcabc'
+     *
+     * _.repeat('abc', 0);
+     * // => ''
+     */
+    function repeat(string, n, guard) {
+      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
+        n = 1;
+      } else {
+        n = toInteger(n);
+      }
+      return baseRepeat(toString(string), n);
+    }
+
+    /**
+     * Replaces matches for `pattern` in `string` with `replacement`.
+     *
+     * **Note:** This method is based on
+     * [`String#replace`](https://mdn.io/String/replace).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to modify.
+     * @param {RegExp|string} pattern The pattern to replace.
+     * @param {Function|string} replacement The match replacement.
+     * @returns {string} Returns the modified string.
+     * @example
+     *
+     * _.replace('Hi Fred', 'Fred', 'Barney');
+     * // => 'Hi Barney'
+     */
+    function replace() {
+      var args = arguments,
+          string = toString(args[0]);
+
+      return args.length < 3 ? string : string.replace(args[1], args[2]);
+    }
+
+    /**
+     * Converts `string` to
+     * [snake case](https://en.wikipedia.org/wiki/Snake_case).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the snake cased string.
+     * @example
+     *
+     * _.snakeCase('Foo Bar');
+     * // => 'foo_bar'
+     *
+     * _.snakeCase('fooBar');
+     * // => 'foo_bar'
+     *
+     * _.snakeCase('--FOO-BAR--');
+     * // => 'foo_bar'
+     */
+    var snakeCase = createCompounder(function(result, word, index) {
+      return result + (index ? '_' : '') + word.toLowerCase();
+    });
+
+    /**
+     * Splits `string` by `separator`.
+     *
+     * **Note:** This method is based on
+     * [`String#split`](https://mdn.io/String/split).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to split.
+     * @param {RegExp|string} separator The separator pattern to split by.
+     * @param {number} [limit] The length to truncate results to.
+     * @returns {Array} Returns the string segments.
+     * @example
+     *
+     * _.split('a-b-c', '-', 2);
+     * // => ['a', 'b']
+     */
+    function split(string, separator, limit) {
+      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
+        separator = limit = undefined;
+      }
+      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
+      if (!limit) {
+        return [];
+      }
+      string = toString(string);
+      if (string && (
+            typeof separator == 'string' ||
+            (separator != null && !isRegExp(separator))
+          )) {
+        separator = baseToString(separator);
+        if (!separator && hasUnicode(string)) {
+          return castSlice(stringToArray(string), 0, limit);
+        }
+      }
+      return string.split(separator, limit);
+    }
+
+    /**
+     * Converts `string` to
+     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
+     *
+     * @static
+     * @memberOf _
+     * @since 3.1.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the start cased string.
+     * @example
+     *
+     * _.startCase('--foo-bar--');
+     * // => 'Foo Bar'
+     *
+     * _.startCase('fooBar');
+     * // => 'Foo Bar'
+     *
+     * _.startCase('__FOO_BAR__');
+     * // => 'FOO BAR'
+     */
+    var startCase = createCompounder(function(result, word, index) {
+      return result + (index ? ' ' : '') + upperFirst(word);
+    });
+
+    /**
+     * Checks if `string` starts with the given target string.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to inspect.
+     * @param {string} [target] The string to search for.
+     * @param {number} [position=0] The position to search from.
+     * @returns {boolean} Returns `true` if `string` starts with `target`,
+     *  else `false`.
+     * @example
+     *
+     * _.startsWith('abc', 'a');
+     * // => true
+     *
+     * _.startsWith('abc', 'b');
+     * // => false
+     *
+     * _.startsWith('abc', 'b', 1);
+     * // => true
+     */
+    function startsWith(string, target, position) {
+      string = toString(string);
+      position = position == null
+        ? 0
+        : baseClamp(toInteger(position), 0, string.length);
+
+      target = baseToString(target);
+      return string.slice(position, position + target.length) == target;
+    }
+
+    /**
+     * Creates a compiled template function that can interpolate data properties
+     * in "interpolate" delimiters, HTML-escape interpolated data properties in
+     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
+     * properties may be accessed as free variables in the template. If a setting
+     * object is given, it takes precedence over `_.templateSettings` values.
+     *
+     * **Note:** In the development build `_.template` utilizes
+     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
+     * for easier debugging.
+     *
+     * For more information on precompiling templates see
+     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
+     *
+     * For more information on Chrome extension sandboxes see
+     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category String
+     * @param {string} [string=''] The template string.
+     * @param {Object} [options={}] The options object.
+     * @param {RegExp} [options.escape=_.templateSettings.escape]
+     *  The HTML "escape" delimiter.
+     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
+     *  The "evaluate" delimiter.
+     * @param {Object} [options.imports=_.templateSettings.imports]
+     *  An object to import into the template as free variables.
+     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
+     *  The "interpolate" delimiter.
+     * @param {string} [options.sourceURL='lodash.templateSources[n]']
+     *  The sourceURL of the compiled template.
+     * @param {string} [options.variable='obj']
+     *  The data object variable name.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Function} Returns the compiled template function.
+     * @example
+     *
+     * // Use the "interpolate" delimiter to create a compiled template.
+     * var compiled = _.template('hello <%= user %>!');
+     * compiled({ 'user': 'fred' });
+     * // => 'hello fred!'
+     *
+     * // Use the HTML "escape" delimiter to escape data property values.
+     * var compiled = _.template('<b><%- value %></b>');
+     * compiled({ 'value': '<script>' });
+     * // => '<b>&lt;script&gt;</b>'
+     *
+     * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
+     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
+     * compiled({ 'users': ['fred', 'barney'] });
+     * // => '<li>fred</li><li>barney</li>'
+     *
+     * // Use the internal `print` function in "evaluate" delimiters.
+     * var compiled = _.template('<% print("hello " + user); %>!');
+     * compiled({ 'user': 'barney' });
+     * // => 'hello barney!'
+     *
+     * // Use the ES template literal delimiter as an "interpolate" delimiter.
+     * // Disable support by replacing the "interpolate" delimiter.
+     * var compiled = _.template('hello ${ user }!');
+     * compiled({ 'user': 'pebbles' });
+     * // => 'hello pebbles!'
+     *
+     * // Use backslashes to treat delimiters as plain text.
+     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
+     * compiled({ 'value': 'ignored' });
+     * // => '<%- value %>'
+     *
+     * // Use the `imports` option to import `jQuery` as `jq`.
+     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
+     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
+     * compiled({ 'users': ['fred', 'barney'] });
+     * // => '<li>fred</li><li>barney</li>'
+     *
+     * // Use the `sourceURL` option to specify a custom sourceURL for the template.
+     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
+     * compiled(data);
+     * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
+     *
+     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
+     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
+     * compiled.source;
+     * // => function(data) {
+     * //   var __t, __p = '';
+     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
+     * //   return __p;
+     * // }
+     *
+     * // Use custom template delimiters.
+     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
+     * var compiled = _.template('hello {{ user }}!');
+     * compiled({ 'user': 'mustache' });
+     * // => 'hello mustache!'
+     *
+     * // Use the `source` property to inline compiled templates for meaningful
+     * // line numbers in error messages and stack traces.
+     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
+     *   var JST = {\
+     *     "main": ' + _.template(mainText).source + '\
+     *   };\
+     * ');
+     */
+    function template(string, options, guard) {
+      // Based on John Resig's `tmpl` implementation
+      // (http://ejohn.org/blog/javascript-micro-templating/)
+      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
+      var settings = lodash.templateSettings;
+
+      if (guard && isIterateeCall(string, options, guard)) {
+        options = undefined;
+      }
+      string = toString(string);
+      options = assignInWith({}, options, settings, customDefaultsAssignIn);
+
+      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
+          importsKeys = keys(imports),
+          importsValues = baseValues(imports, importsKeys);
+
+      var isEscaping,
+          isEvaluating,
+          index = 0,
+          interpolate = options.interpolate || reNoMatch,
+          source = "__p += '";
+
+      // Compile the regexp to match each delimiter.
+      var reDelimiters = RegExp(
+        (options.escape || reNoMatch).source + '|' +
+        interpolate.source + '|' +
+        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
+        (options.evaluate || reNoMatch).source + '|$'
+      , 'g');
+
+      // Use a sourceURL for easier debugging.
+      var sourceURL = '//# sourceURL=' +
+        ('sourceURL' in options
+          ? options.sourceURL
+          : ('lodash.templateSources[' + (++templateCounter) + ']')
+        ) + '\n';
+
+      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
+        interpolateValue || (interpolateValue = esTemplateValue);
+
+        // Escape characters that can't be included in string literals.
+        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
+
+        // Replace delimiters with snippets.
+        if (escapeValue) {
+          isEscaping = true;
+          source += "' +\n__e(" + escapeValue + ") +\n'";
+        }
+        if (evaluateValue) {
+          isEvaluating = true;
+          source += "';\n" + evaluateValue + ";\n__p += '";
+        }
+        if (interpolateValue) {
+          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
+        }
+        index = offset + match.length;
+
+        // The JS engine embedded in Adobe products needs `match` returned in
+        // order to produce the correct `offset` value.
+        return match;
+      });
+
+      source += "';\n";
+
+      // If `variable` is not specified wrap a with-statement around the generated
+      // code to add the data object to the top of the scope chain.
+      var variable = options.variable;
+      if (!variable) {
+        source = 'with (obj) {\n' + source + '\n}\n';
+      }
+      // Cleanup code by stripping empty strings.
+      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
+        .replace(reEmptyStringMiddle, '$1')
+        .replace(reEmptyStringTrailing, '$1;');
+
+      // Frame code as the function body.
+      source = 'function(' + (variable || 'obj') + ') {\n' +
+        (variable
+          ? ''
+          : 'obj || (obj = {});\n'
+        ) +
+        "var __t, __p = ''" +
+        (isEscaping
+           ? ', __e = _.escape'
+           : ''
+        ) +
+        (isEvaluating
+          ? ', __j = Array.prototype.join;\n' +
+            "function print() { __p += __j.call(arguments, '') }\n"
+          : ';\n'
+        ) +
+        source +
+        'return __p\n}';
+
+      var result = attempt(function() {
+        return Function(importsKeys, sourceURL + 'return ' + source)
+          .apply(undefined, importsValues);
+      });
+
+      // Provide the compiled function's source by its `toString` method or
+      // the `source` property as a convenience for inlining compiled templates.
+      result.source = source;
+      if (isError(result)) {
+        throw result;
+      }
+      return result;
+    }
+
+    /**
+     * Converts `string`, as a whole, to lower case just like
+     * [String#toLowerCase](https://mdn.io/toLowerCase).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the lower cased string.
+     * @example
+     *
+     * _.toLower('--Foo-Bar--');
+     * // => '--foo-bar--'
+     *
+     * _.toLower('fooBar');
+     * // => 'foobar'
+     *
+     * _.toLower('__FOO_BAR__');
+     * // => '__foo_bar__'
+     */
+    function toLower(value) {
+      return toString(value).toLowerCase();
+    }
+
+    /**
+     * Converts `string`, as a whole, to upper case just like
+     * [String#toUpperCase](https://mdn.io/toUpperCase).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the upper cased string.
+     * @example
+     *
+     * _.toUpper('--foo-bar--');
+     * // => '--FOO-BAR--'
+     *
+     * _.toUpper('fooBar');
+     * // => 'FOOBAR'
+     *
+     * _.toUpper('__foo_bar__');
+     * // => '__FOO_BAR__'
+     */
+    function toUpper(value) {
+      return toString(value).toUpperCase();
+    }
+
+    /**
+     * Removes leading and trailing whitespace or specified characters from `string`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to trim.
+     * @param {string} [chars=whitespace] The characters to trim.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {string} Returns the trimmed string.
+     * @example
+     *
+     * _.trim('  abc  ');
+     * // => 'abc'
+     *
+     * _.trim('-_-abc-_-', '_-');
+     * // => 'abc'
+     *
+     * _.map(['  foo  ', '  bar  '], _.trim);
+     * // => ['foo', 'bar']
+     */
+    function trim(string, chars, guard) {
+      string = toString(string);
+      if (string && (guard || chars === undefined)) {
+        return string.replace(reTrim, '');
+      }
+      if (!string || !(chars = baseToString(chars))) {
+        return string;
+      }
+      var strSymbols = stringToArray(string),
+          chrSymbols = stringToArray(chars),
+          start = charsStartIndex(strSymbols, chrSymbols),
+          end = charsEndIndex(strSymbols, chrSymbols) + 1;
+
+      return castSlice(strSymbols, start, end).join('');
+    }
+
+    /**
+     * Removes trailing whitespace or specified characters from `string`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to trim.
+     * @param {string} [chars=whitespace] The characters to trim.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {string} Returns the trimmed string.
+     * @example
+     *
+     * _.trimEnd('  abc  ');
+     * // => '  abc'
+     *
+     * _.trimEnd('-_-abc-_-', '_-');
+     * // => '-_-abc'
+     */
+    function trimEnd(string, chars, guard) {
+      string = toString(string);
+      if (string && (guard || chars === undefined)) {
+        return string.replace(reTrimEnd, '');
+      }
+      if (!string || !(chars = baseToString(chars))) {
+        return string;
+      }
+      var strSymbols = stringToArray(string),
+          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;
+
+      return castSlice(strSymbols, 0, end).join('');
+    }
+
+    /**
+     * Removes leading whitespace or specified characters from `string`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to trim.
+     * @param {string} [chars=whitespace] The characters to trim.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {string} Returns the trimmed string.
+     * @example
+     *
+     * _.trimStart('  abc  ');
+     * // => 'abc  '
+     *
+     * _.trimStart('-_-abc-_-', '_-');
+     * // => 'abc-_-'
+     */
+    function trimStart(string, chars, guard) {
+      string = toString(string);
+      if (string && (guard || chars === undefined)) {
+        return string.replace(reTrimStart, '');
+      }
+      if (!string || !(chars = baseToString(chars))) {
+        return string;
+      }
+      var strSymbols = stringToArray(string),
+          start = charsStartIndex(strSymbols, stringToArray(chars));
+
+      return castSlice(strSymbols, start).join('');
+    }
+
+    /**
+     * Truncates `string` if it's longer than the given maximum string length.
+     * The last characters of the truncated string are replaced with the omission
+     * string which defaults to "...".
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to truncate.
+     * @param {Object} [options={}] The options object.
+     * @param {number} [options.length=30] The maximum string length.
+     * @param {string} [options.omission='...'] The string to indicate text is omitted.
+     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
+     * @returns {string} Returns the truncated string.
+     * @example
+     *
+     * _.truncate('hi-diddly-ho there, neighborino');
+     * // => 'hi-diddly-ho there, neighbo...'
+     *
+     * _.truncate('hi-diddly-ho there, neighborino', {
+     *   'length': 24,
+     *   'separator': ' '
+     * });
+     * // => 'hi-diddly-ho there,...'
+     *
+     * _.truncate('hi-diddly-ho there, neighborino', {
+     *   'length': 24,
+     *   'separator': /,? +/
+     * });
+     * // => 'hi-diddly-ho there...'
+     *
+     * _.truncate('hi-diddly-ho there, neighborino', {
+     *   'omission': ' [...]'
+     * });
+     * // => 'hi-diddly-ho there, neig [...]'
+     */
+    function truncate(string, options) {
+      var length = DEFAULT_TRUNC_LENGTH,
+          omission = DEFAULT_TRUNC_OMISSION;
+
+      if (isObject(options)) {
+        var separator = 'separator' in options ? options.separator : separator;
+        length = 'length' in options ? toInteger(options.length) : length;
+        omission = 'omission' in options ? baseToString(options.omission) : omission;
+      }
+      string = toString(string);
+
+      var strLength = string.length;
+      if (hasUnicode(string)) {
+        var strSymbols = stringToArray(string);
+        strLength = strSymbols.length;
+      }
+      if (length >= strLength) {
+        return string;
+      }
+      var end = length - stringSize(omission);
+      if (end < 1) {
+        return omission;
+      }
+      var result = strSymbols
+        ? castSlice(strSymbols, 0, end).join('')
+        : string.slice(0, end);
+
+      if (separator === undefined) {
+        return result + omission;
+      }
+      if (strSymbols) {
+        end += (result.length - end);
+      }
+      if (isRegExp(separator)) {
+        if (string.slice(end).search(separator)) {
+          var match,
+              substring = result;
+
+          if (!separator.global) {
+            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
+          }
+          separator.lastIndex = 0;
+          while ((match = separator.exec(substring))) {
+            var newEnd = match.index;
+          }
+          result = result.slice(0, newEnd === undefined ? end : newEnd);
+        }
+      } else if (string.indexOf(baseToString(separator), end) != end) {
+        var index = result.lastIndexOf(separator);
+        if (index > -1) {
+          result = result.slice(0, index);
+        }
+      }
+      return result + omission;
+    }
+
+    /**
+     * The inverse of `_.escape`; this method converts the HTML entities
+     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
+     * their corresponding characters.
+     *
+     * **Note:** No other HTML entities are unescaped. To unescape additional
+     * HTML entities use a third-party library like [_he_](https://mths.be/he).
+     *
+     * @static
+     * @memberOf _
+     * @since 0.6.0
+     * @category String
+     * @param {string} [string=''] The string to unescape.
+     * @returns {string} Returns the unescaped string.
+     * @example
+     *
+     * _.unescape('fred, barney, &amp; pebbles');
+     * // => 'fred, barney, & pebbles'
+     */
+    function unescape(string) {
+      string = toString(string);
+      return (string && reHasEscapedHtml.test(string))
+        ? string.replace(reEscapedHtml, unescapeHtmlChar)
+        : string;
+    }
+
+    /**
+     * Converts `string`, as space separated words, to upper case.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the upper cased string.
+     * @example
+     *
+     * _.upperCase('--foo-bar');
+     * // => 'FOO BAR'
+     *
+     * _.upperCase('fooBar');
+     * // => 'FOO BAR'
+     *
+     * _.upperCase('__foo_bar__');
+     * // => 'FOO BAR'
+     */
+    var upperCase = createCompounder(function(result, word, index) {
+      return result + (index ? ' ' : '') + word.toUpperCase();
+    });
+
+    /**
+     * Converts the first character of `string` to upper case.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category String
+     * @param {string} [string=''] The string to convert.
+     * @returns {string} Returns the converted string.
+     * @example
+     *
+     * _.upperFirst('fred');
+     * // => 'Fred'
+     *
+     * _.upperFirst('FRED');
+     * // => 'FRED'
+     */
+    var upperFirst = createCaseFirst('toUpperCase');
+
+    /**
+     * Splits `string` into an array of its words.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category String
+     * @param {string} [string=''] The string to inspect.
+     * @param {RegExp|string} [pattern] The pattern to match words.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+     * @returns {Array} Returns the words of `string`.
+     * @example
+     *
+     * _.words('fred, barney, & pebbles');
+     * // => ['fred', 'barney', 'pebbles']
+     *
+     * _.words('fred, barney, & pebbles', /[^, ]+/g);
+     * // => ['fred', 'barney', '&', 'pebbles']
+     */
+    function words(string, pattern, guard) {
+      string = toString(string);
+      pattern = guard ? undefined : pattern;
+
+      if (pattern === undefined) {
+        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
+      }
+      return string.match(pattern) || [];
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Attempts to invoke `func`, returning either the result or the caught error
+     * object. Any additional arguments are provided to `func` when it's invoked.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Util
+     * @param {Function} func The function to attempt.
+     * @param {...*} [args] The arguments to invoke `func` with.
+     * @returns {*} Returns the `func` result or error object.
+     * @example
+     *
+     * // Avoid throwing errors for invalid selectors.
+     * var elements = _.attempt(function(selector) {
+     *   return document.querySelectorAll(selector);
+     * }, '>_>');
+     *
+     * if (_.isError(elements)) {
+     *   elements = [];
+     * }
+     */
+    var attempt = baseRest(function(func, args) {
+      try {
+        return apply(func, undefined, args);
+      } catch (e) {
+        return isError(e) ? e : new Error(e);
+      }
+    });
+
+    /**
+     * Binds methods of an object to the object itself, overwriting the existing
+     * method.
+     *
+     * **Note:** This method doesn't set the "length" property of bound functions.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Util
+     * @param {Object} object The object to bind and assign the bound methods to.
+     * @param {...(string|string[])} methodNames The object method names to bind.
+     * @returns {Object} Returns `object`.
+     * @example
+     *
+     * var view = {
+     *   'label': 'docs',
+     *   'click': function() {
+     *     console.log('clicked ' + this.label);
+     *   }
+     * };
+     *
+     * _.bindAll(view, ['click']);
+     * jQuery(element).on('click', view.click);
+     * // => Logs 'clicked docs' when clicked.
+     */
+    var bindAll = flatRest(function(object, methodNames) {
+      arrayEach(methodNames, function(key) {
+        key = toKey(key);
+        baseAssignValue(object, key, bind(object[key], object));
+      });
+      return object;
+    });
+
+    /**
+     * Creates a function that iterates over `pairs` and invokes the corresponding
+     * function of the first predicate to return truthy. The predicate-function
+     * pairs are invoked with the `this` binding and arguments of the created
+     * function.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {Array} pairs The predicate-function pairs.
+     * @returns {Function} Returns the new composite function.
+     * @example
+     *
+     * var func = _.cond([
+     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
+     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
+     *   [_.stubTrue,                      _.constant('no match')]
+     * ]);
+     *
+     * func({ 'a': 1, 'b': 2 });
+     * // => 'matches A'
+     *
+     * func({ 'a': 0, 'b': 1 });
+     * // => 'matches B'
+     *
+     * func({ 'a': '1', 'b': '2' });
+     * // => 'no match'
+     */
+    function cond(pairs) {
+      var length = pairs == null ? 0 : pairs.length,
+          toIteratee = getIteratee();
+
+      pairs = !length ? [] : arrayMap(pairs, function(pair) {
+        if (typeof pair[1] != 'function') {
+          throw new TypeError(FUNC_ERROR_TEXT);
+        }
+        return [toIteratee(pair[0]), pair[1]];
+      });
+
+      return baseRest(function(args) {
+        var index = -1;
+        while (++index < length) {
+          var pair = pairs[index];
+          if (apply(pair[0], this, args)) {
+            return apply(pair[1], this, args);
+          }
+        }
+      });
+    }
+
+    /**
+     * Creates a function that invokes the predicate properties of `source` with
+     * the corresponding property values of a given object, returning `true` if
+     * all predicates return truthy, else `false`.
+     *
+     * **Note:** The created function is equivalent to `_.conformsTo` with
+     * `source` partially applied.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {Object} source The object of property predicates to conform to.
+     * @returns {Function} Returns the new spec function.
+     * @example
+     *
+     * var objects = [
+     *   { 'a': 2, 'b': 1 },
+     *   { 'a': 1, 'b': 2 }
+     * ];
+     *
+     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
+     * // => [{ 'a': 1, 'b': 2 }]
+     */
+    function conforms(source) {
+      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
+    }
+
+    /**
+     * Creates a function that returns `value`.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.4.0
+     * @category Util
+     * @param {*} value The value to return from the new function.
+     * @returns {Function} Returns the new constant function.
+     * @example
+     *
+     * var objects = _.times(2, _.constant({ 'a': 1 }));
+     *
+     * console.log(objects);
+     * // => [{ 'a': 1 }, { 'a': 1 }]
+     *
+     * console.log(objects[0] === objects[1]);
+     * // => true
+     */
+    function constant(value) {
+      return function() {
+        return value;
+      };
+    }
+
+    /**
+     * Checks `value` to determine whether a default value should be returned in
+     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
+     * or `undefined`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.14.0
+     * @category Util
+     * @param {*} value The value to check.
+     * @param {*} defaultValue The default value.
+     * @returns {*} Returns the resolved value.
+     * @example
+     *
+     * _.defaultTo(1, 10);
+     * // => 1
+     *
+     * _.defaultTo(undefined, 10);
+     * // => 10
+     */
+    function defaultTo(value, defaultValue) {
+      return (value == null || value !== value) ? defaultValue : value;
+    }
+
+    /**
+     * Creates a function that returns the result of invoking the given functions
+     * with the `this` binding of the created function, where each successive
+     * invocation is supplied the return value of the previous.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Util
+     * @param {...(Function|Function[])} [funcs] The functions to invoke.
+     * @returns {Function} Returns the new composite function.
+     * @see _.flowRight
+     * @example
+     *
+     * function square(n) {
+     *   return n * n;
+     * }
+     *
+     * var addSquare = _.flow([_.add, square]);
+     * addSquare(1, 2);
+     * // => 9
+     */
+    var flow = createFlow();
+
+    /**
+     * This method is like `_.flow` except that it creates a function that
+     * invokes the given functions from right to left.
+     *
+     * @static
+     * @since 3.0.0
+     * @memberOf _
+     * @category Util
+     * @param {...(Function|Function[])} [funcs] The functions to invoke.
+     * @returns {Function} Returns the new composite function.
+     * @see _.flow
+     * @example
+     *
+     * function square(n) {
+     *   return n * n;
+     * }
+     *
+     * var addSquare = _.flowRight([square, _.add]);
+     * addSquare(1, 2);
+     * // => 9
+     */
+    var flowRight = createFlow(true);
+
+    /**
+     * This method returns the first argument it receives.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Util
+     * @param {*} value Any value.
+     * @returns {*} Returns `value`.
+     * @example
+     *
+     * var object = { 'a': 1 };
+     *
+     * console.log(_.identity(object) === object);
+     * // => true
+     */
+    function identity(value) {
+      return value;
+    }
+
+    /**
+     * Creates a function that invokes `func` with the arguments of the created
+     * function. If `func` is a property name, the created function returns the
+     * property value for a given element. If `func` is an array or object, the
+     * created function returns `true` for elements that contain the equivalent
+     * source properties, otherwise it returns `false`.
+     *
+     * @static
+     * @since 4.0.0
+     * @memberOf _
+     * @category Util
+     * @param {*} [func=_.identity] The value to convert to a callback.
+     * @returns {Function} Returns the callback.
+     * @example
+     *
+     * var users = [
+     *   { 'user': 'barney', 'age': 36, 'active': true },
+     *   { 'user': 'fred',   'age': 40, 'active': false }
+     * ];
+     *
+     * // The `_.matches` iteratee shorthand.
+     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
+     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
+     *
+     * // The `_.matchesProperty` iteratee shorthand.
+     * _.filter(users, _.iteratee(['user', 'fred']));
+     * // => [{ 'user': 'fred', 'age': 40 }]
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.map(users, _.iteratee('user'));
+     * // => ['barney', 'fred']
+     *
+     * // Create custom iteratee shorthands.
+     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
+     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
+     *     return func.test(string);
+     *   };
+     * });
+     *
+     * _.filter(['abc', 'def'], /ef/);
+     * // => ['def']
+     */
+    function iteratee(func) {
+      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
+    }
+
+    /**
+     * Creates a function that performs a partial deep comparison between a given
+     * object and `source`, returning `true` if the given object has equivalent
+     * property values, else `false`.
+     *
+     * **Note:** The created function is equivalent to `_.isMatch` with `source`
+     * partially applied.
+     *
+     * Partial comparisons will match empty array and empty object `source`
+     * values against any array or object value, respectively. See `_.isEqual`
+     * for a list of supported value comparisons.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Util
+     * @param {Object} source The object of property values to match.
+     * @returns {Function} Returns the new spec function.
+     * @example
+     *
+     * var objects = [
+     *   { 'a': 1, 'b': 2, 'c': 3 },
+     *   { 'a': 4, 'b': 5, 'c': 6 }
+     * ];
+     *
+     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
+     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
+     */
+    function matches(source) {
+      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
+    }
+
+    /**
+     * Creates a function that performs a partial deep comparison between the
+     * value at `path` of a given object to `srcValue`, returning `true` if the
+     * object value is equivalent, else `false`.
+     *
+     * **Note:** Partial comparisons will match empty array and empty object
+     * `srcValue` values against any array or object value, respectively. See
+     * `_.isEqual` for a list of supported value comparisons.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.2.0
+     * @category Util
+     * @param {Array|string} path The path of the property to get.
+     * @param {*} srcValue The value to match.
+     * @returns {Function} Returns the new spec function.
+     * @example
+     *
+     * var objects = [
+     *   { 'a': 1, 'b': 2, 'c': 3 },
+     *   { 'a': 4, 'b': 5, 'c': 6 }
+     * ];
+     *
+     * _.find(objects, _.matchesProperty('a', 4));
+     * // => { 'a': 4, 'b': 5, 'c': 6 }
+     */
+    function matchesProperty(path, srcValue) {
+      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
+    }
+
+    /**
+     * Creates a function that invokes the method at `path` of a given object.
+     * Any additional arguments are provided to the invoked method.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.7.0
+     * @category Util
+     * @param {Array|string} path The path of the method to invoke.
+     * @param {...*} [args] The arguments to invoke the method with.
+     * @returns {Function} Returns the new invoker function.
+     * @example
+     *
+     * var objects = [
+     *   { 'a': { 'b': _.constant(2) } },
+     *   { 'a': { 'b': _.constant(1) } }
+     * ];
+     *
+     * _.map(objects, _.method('a.b'));
+     * // => [2, 1]
+     *
+     * _.map(objects, _.method(['a', 'b']));
+     * // => [2, 1]
+     */
+    var method = baseRest(function(path, args) {
+      return function(object) {
+        return baseInvoke(object, path, args);
+      };
+    });
+
+    /**
+     * The opposite of `_.method`; this method creates a function that invokes
+     * the method at a given path of `object`. Any additional arguments are
+     * provided to the invoked method.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.7.0
+     * @category Util
+     * @param {Object} object The object to query.
+     * @param {...*} [args] The arguments to invoke the method with.
+     * @returns {Function} Returns the new invoker function.
+     * @example
+     *
+     * var array = _.times(3, _.constant),
+     *     object = { 'a': array, 'b': array, 'c': array };
+     *
+     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
+     * // => [2, 0]
+     *
+     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
+     * // => [2, 0]
+     */
+    var methodOf = baseRest(function(object, args) {
+      return function(path) {
+        return baseInvoke(object, path, args);
+      };
+    });
+
+    /**
+     * Adds all own enumerable string keyed function properties of a source
+     * object to the destination object. If `object` is a function, then methods
+     * are added to its prototype as well.
+     *
+     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
+     * avoid conflicts caused by modifying the original.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Util
+     * @param {Function|Object} [object=lodash] The destination object.
+     * @param {Object} source The object of functions to add.
+     * @param {Object} [options={}] The options object.
+     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
+     * @returns {Function|Object} Returns `object`.
+     * @example
+     *
+     * function vowels(string) {
+     *   return _.filter(string, function(v) {
+     *     return /[aeiou]/i.test(v);
+     *   });
+     * }
+     *
+     * _.mixin({ 'vowels': vowels });
+     * _.vowels('fred');
+     * // => ['e']
+     *
+     * _('fred').vowels().value();
+     * // => ['e']
+     *
+     * _.mixin({ 'vowels': vowels }, { 'chain': false });
+     * _('fred').vowels();
+     * // => ['e']
+     */
+    function mixin(object, source, options) {
+      var props = keys(source),
+          methodNames = baseFunctions(source, props);
+
+      if (options == null &&
+          !(isObject(source) && (methodNames.length || !props.length))) {
+        options = source;
+        source = object;
+        object = this;
+        methodNames = baseFunctions(source, keys(source));
+      }
+      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
+          isFunc = isFunction(object);
+
+      arrayEach(methodNames, function(methodName) {
+        var func = source[methodName];
+        object[methodName] = func;
+        if (isFunc) {
+          object.prototype[methodName] = function() {
+            var chainAll = this.__chain__;
+            if (chain || chainAll) {
+              var result = object(this.__wrapped__),
+                  actions = result.__actions__ = copyArray(this.__actions__);
+
+              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
+              result.__chain__ = chainAll;
+              return result;
+            }
+            return func.apply(object, arrayPush([this.value()], arguments));
+          };
+        }
+      });
+
+      return object;
+    }
+
+    /**
+     * Reverts the `_` variable to its previous value and returns a reference to
+     * the `lodash` function.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Util
+     * @returns {Function} Returns the `lodash` function.
+     * @example
+     *
+     * var lodash = _.noConflict();
+     */
+    function noConflict() {
+      if (root._ === this) {
+        root._ = oldDash;
+      }
+      return this;
+    }
+
+    /**
+     * This method returns `undefined`.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.3.0
+     * @category Util
+     * @example
+     *
+     * _.times(2, _.noop);
+     * // => [undefined, undefined]
+     */
+    function noop() {
+      // No operation performed.
+    }
+
+    /**
+     * Creates a function that gets the argument at index `n`. If `n` is negative,
+     * the nth argument from the end is returned.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {number} [n=0] The index of the argument to return.
+     * @returns {Function} Returns the new pass-thru function.
+     * @example
+     *
+     * var func = _.nthArg(1);
+     * func('a', 'b', 'c', 'd');
+     * // => 'b'
+     *
+     * var func = _.nthArg(-2);
+     * func('a', 'b', 'c', 'd');
+     * // => 'c'
+     */
+    function nthArg(n) {
+      n = toInteger(n);
+      return baseRest(function(args) {
+        return baseNth(args, n);
+      });
+    }
+
+    /**
+     * Creates a function that invokes `iteratees` with the arguments it receives
+     * and returns their results.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {...(Function|Function[])} [iteratees=[_.identity]]
+     *  The iteratees to invoke.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var func = _.over([Math.max, Math.min]);
+     *
+     * func(1, 2, 3, 4);
+     * // => [4, 1]
+     */
+    var over = createOver(arrayMap);
+
+    /**
+     * Creates a function that checks if **all** of the `predicates` return
+     * truthy when invoked with the arguments it receives.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {...(Function|Function[])} [predicates=[_.identity]]
+     *  The predicates to check.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var func = _.overEvery([Boolean, isFinite]);
+     *
+     * func('1');
+     * // => true
+     *
+     * func(null);
+     * // => false
+     *
+     * func(NaN);
+     * // => false
+     */
+    var overEvery = createOver(arrayEvery);
+
+    /**
+     * Creates a function that checks if **any** of the `predicates` return
+     * truthy when invoked with the arguments it receives.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {...(Function|Function[])} [predicates=[_.identity]]
+     *  The predicates to check.
+     * @returns {Function} Returns the new function.
+     * @example
+     *
+     * var func = _.overSome([Boolean, isFinite]);
+     *
+     * func('1');
+     * // => true
+     *
+     * func(null);
+     * // => true
+     *
+     * func(NaN);
+     * // => false
+     */
+    var overSome = createOver(arraySome);
+
+    /**
+     * Creates a function that returns the value at `path` of a given object.
+     *
+     * @static
+     * @memberOf _
+     * @since 2.4.0
+     * @category Util
+     * @param {Array|string} path The path of the property to get.
+     * @returns {Function} Returns the new accessor function.
+     * @example
+     *
+     * var objects = [
+     *   { 'a': { 'b': 2 } },
+     *   { 'a': { 'b': 1 } }
+     * ];
+     *
+     * _.map(objects, _.property('a.b'));
+     * // => [2, 1]
+     *
+     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
+     * // => [1, 2]
+     */
+    function property(path) {
+      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
+    }
+
+    /**
+     * The opposite of `_.property`; this method creates a function that returns
+     * the value at a given path of `object`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.0.0
+     * @category Util
+     * @param {Object} object The object to query.
+     * @returns {Function} Returns the new accessor function.
+     * @example
+     *
+     * var array = [0, 1, 2],
+     *     object = { 'a': array, 'b': array, 'c': array };
+     *
+     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
+     * // => [2, 0]
+     *
+     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
+     * // => [2, 0]
+     */
+    function propertyOf(object) {
+      return function(path) {
+        return object == null ? undefined : baseGet(object, path);
+      };
+    }
+
+    /**
+     * Creates an array of numbers (positive and/or negative) progressing from
+     * `start` up to, but not including, `end`. A step of `-1` is used if a negative
+     * `start` is specified without an `end` or `step`. If `end` is not specified,
+     * it's set to `start` with `start` then set to `0`.
+     *
+     * **Note:** JavaScript follows the IEEE-754 standard for resolving
+     * floating-point values which can produce unexpected results.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Util
+     * @param {number} [start=0] The start of the range.
+     * @param {number} end The end of the range.
+     * @param {number} [step=1] The value to increment or decrement by.
+     * @returns {Array} Returns the range of numbers.
+     * @see _.inRange, _.rangeRight
+     * @example
+     *
+     * _.range(4);
+     * // => [0, 1, 2, 3]
+     *
+     * _.range(-4);
+     * // => [0, -1, -2, -3]
+     *
+     * _.range(1, 5);
+     * // => [1, 2, 3, 4]
+     *
+     * _.range(0, 20, 5);
+     * // => [0, 5, 10, 15]
+     *
+     * _.range(0, -4, -1);
+     * // => [0, -1, -2, -3]
+     *
+     * _.range(1, 4, 0);
+     * // => [1, 1, 1]
+     *
+     * _.range(0);
+     * // => []
+     */
+    var range = createRange();
+
+    /**
+     * This method is like `_.range` except that it populates values in
+     * descending order.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {number} [start=0] The start of the range.
+     * @param {number} end The end of the range.
+     * @param {number} [step=1] The value to increment or decrement by.
+     * @returns {Array} Returns the range of numbers.
+     * @see _.inRange, _.range
+     * @example
+     *
+     * _.rangeRight(4);
+     * // => [3, 2, 1, 0]
+     *
+     * _.rangeRight(-4);
+     * // => [-3, -2, -1, 0]
+     *
+     * _.rangeRight(1, 5);
+     * // => [4, 3, 2, 1]
+     *
+     * _.rangeRight(0, 20, 5);
+     * // => [15, 10, 5, 0]
+     *
+     * _.rangeRight(0, -4, -1);
+     * // => [-3, -2, -1, 0]
+     *
+     * _.rangeRight(1, 4, 0);
+     * // => [1, 1, 1]
+     *
+     * _.rangeRight(0);
+     * // => []
+     */
+    var rangeRight = createRange(true);
+
+    /**
+     * This method returns a new empty array.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {Array} Returns the new empty array.
+     * @example
+     *
+     * var arrays = _.times(2, _.stubArray);
+     *
+     * console.log(arrays);
+     * // => [[], []]
+     *
+     * console.log(arrays[0] === arrays[1]);
+     * // => false
+     */
+    function stubArray() {
+      return [];
+    }
+
+    /**
+     * This method returns `false`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {boolean} Returns `false`.
+     * @example
+     *
+     * _.times(2, _.stubFalse);
+     * // => [false, false]
+     */
+    function stubFalse() {
+      return false;
+    }
+
+    /**
+     * This method returns a new empty object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {Object} Returns the new empty object.
+     * @example
+     *
+     * var objects = _.times(2, _.stubObject);
+     *
+     * console.log(objects);
+     * // => [{}, {}]
+     *
+     * console.log(objects[0] === objects[1]);
+     * // => false
+     */
+    function stubObject() {
+      return {};
+    }
+
+    /**
+     * This method returns an empty string.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {string} Returns the empty string.
+     * @example
+     *
+     * _.times(2, _.stubString);
+     * // => ['', '']
+     */
+    function stubString() {
+      return '';
+    }
+
+    /**
+     * This method returns `true`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {boolean} Returns `true`.
+     * @example
+     *
+     * _.times(2, _.stubTrue);
+     * // => [true, true]
+     */
+    function stubTrue() {
+      return true;
+    }
+
+    /**
+     * Invokes the iteratee `n` times, returning an array of the results of
+     * each invocation. The iteratee is invoked with one argument; (index).
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Util
+     * @param {number} n The number of times to invoke `iteratee`.
+     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+     * @returns {Array} Returns the array of results.
+     * @example
+     *
+     * _.times(3, String);
+     * // => ['0', '1', '2']
+     *
+     *  _.times(4, _.constant(0));
+     * // => [0, 0, 0, 0]
+     */
+    function times(n, iteratee) {
+      n = toInteger(n);
+      if (n < 1 || n > MAX_SAFE_INTEGER) {
+        return [];
+      }
+      var index = MAX_ARRAY_LENGTH,
+          length = nativeMin(n, MAX_ARRAY_LENGTH);
+
+      iteratee = getIteratee(iteratee);
+      n -= MAX_ARRAY_LENGTH;
+
+      var result = baseTimes(length, iteratee);
+      while (++index < n) {
+        iteratee(index);
+      }
+      return result;
+    }
+
+    /**
+     * Converts `value` to a property path array.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Util
+     * @param {*} value The value to convert.
+     * @returns {Array} Returns the new property path array.
+     * @example
+     *
+     * _.toPath('a.b.c');
+     * // => ['a', 'b', 'c']
+     *
+     * _.toPath('a[0].b.c');
+     * // => ['a', '0', 'b', 'c']
+     */
+    function toPath(value) {
+      if (isArray(value)) {
+        return arrayMap(value, toKey);
+      }
+      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
+    }
+
+    /**
+     * Generates a unique ID. If `prefix` is given, the ID is appended to it.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Util
+     * @param {string} [prefix=''] The value to prefix the ID with.
+     * @returns {string} Returns the unique ID.
+     * @example
+     *
+     * _.uniqueId('contact_');
+     * // => 'contact_104'
+     *
+     * _.uniqueId();
+     * // => '105'
+     */
+    function uniqueId(prefix) {
+      var id = ++idCounter;
+      return toString(prefix) + id;
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Adds two numbers.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.4.0
+     * @category Math
+     * @param {number} augend The first number in an addition.
+     * @param {number} addend The second number in an addition.
+     * @returns {number} Returns the total.
+     * @example
+     *
+     * _.add(6, 4);
+     * // => 10
+     */
+    var add = createMathOperation(function(augend, addend) {
+      return augend + addend;
+    }, 0);
+
+    /**
+     * Computes `number` rounded up to `precision`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.10.0
+     * @category Math
+     * @param {number} number The number to round up.
+     * @param {number} [precision=0] The precision to round up to.
+     * @returns {number} Returns the rounded up number.
+     * @example
+     *
+     * _.ceil(4.006);
+     * // => 5
+     *
+     * _.ceil(6.004, 2);
+     * // => 6.01
+     *
+     * _.ceil(6040, -2);
+     * // => 6100
+     */
+    var ceil = createRound('ceil');
+
+    /**
+     * Divide two numbers.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.7.0
+     * @category Math
+     * @param {number} dividend The first number in a division.
+     * @param {number} divisor The second number in a division.
+     * @returns {number} Returns the quotient.
+     * @example
+     *
+     * _.divide(6, 4);
+     * // => 1.5
+     */
+    var divide = createMathOperation(function(dividend, divisor) {
+      return dividend / divisor;
+    }, 1);
+
+    /**
+     * Computes `number` rounded down to `precision`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.10.0
+     * @category Math
+     * @param {number} number The number to round down.
+     * @param {number} [precision=0] The precision to round down to.
+     * @returns {number} Returns the rounded down number.
+     * @example
+     *
+     * _.floor(4.006);
+     * // => 4
+     *
+     * _.floor(0.046, 2);
+     * // => 0.04
+     *
+     * _.floor(4060, -2);
+     * // => 4000
+     */
+    var floor = createRound('floor');
+
+    /**
+     * Computes the maximum value of `array`. If `array` is empty or falsey,
+     * `undefined` is returned.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @returns {*} Returns the maximum value.
+     * @example
+     *
+     * _.max([4, 2, 8, 6]);
+     * // => 8
+     *
+     * _.max([]);
+     * // => undefined
+     */
+    function max(array) {
+      return (array && array.length)
+        ? baseExtremum(array, identity, baseGt)
+        : undefined;
+    }
+
+    /**
+     * This method is like `_.max` except that it accepts `iteratee` which is
+     * invoked for each element in `array` to generate the criterion by which
+     * the value is ranked. The iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {*} Returns the maximum value.
+     * @example
+     *
+     * var objects = [{ 'n': 1 }, { 'n': 2 }];
+     *
+     * _.maxBy(objects, function(o) { return o.n; });
+     * // => { 'n': 2 }
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.maxBy(objects, 'n');
+     * // => { 'n': 2 }
+     */
+    function maxBy(array, iteratee) {
+      return (array && array.length)
+        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
+        : undefined;
+    }
+
+    /**
+     * Computes the mean of the values in `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @returns {number} Returns the mean.
+     * @example
+     *
+     * _.mean([4, 2, 8, 6]);
+     * // => 5
+     */
+    function mean(array) {
+      return baseMean(array, identity);
+    }
+
+    /**
+     * This method is like `_.mean` except that it accepts `iteratee` which is
+     * invoked for each element in `array` to generate the value to be averaged.
+     * The iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.7.0
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {number} Returns the mean.
+     * @example
+     *
+     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
+     *
+     * _.meanBy(objects, function(o) { return o.n; });
+     * // => 5
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.meanBy(objects, 'n');
+     * // => 5
+     */
+    function meanBy(array, iteratee) {
+      return baseMean(array, getIteratee(iteratee, 2));
+    }
+
+    /**
+     * Computes the minimum value of `array`. If `array` is empty or falsey,
+     * `undefined` is returned.
+     *
+     * @static
+     * @since 0.1.0
+     * @memberOf _
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @returns {*} Returns the minimum value.
+     * @example
+     *
+     * _.min([4, 2, 8, 6]);
+     * // => 2
+     *
+     * _.min([]);
+     * // => undefined
+     */
+    function min(array) {
+      return (array && array.length)
+        ? baseExtremum(array, identity, baseLt)
+        : undefined;
+    }
+
+    /**
+     * This method is like `_.min` except that it accepts `iteratee` which is
+     * invoked for each element in `array` to generate the criterion by which
+     * the value is ranked. The iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {*} Returns the minimum value.
+     * @example
+     *
+     * var objects = [{ 'n': 1 }, { 'n': 2 }];
+     *
+     * _.minBy(objects, function(o) { return o.n; });
+     * // => { 'n': 1 }
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.minBy(objects, 'n');
+     * // => { 'n': 1 }
+     */
+    function minBy(array, iteratee) {
+      return (array && array.length)
+        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
+        : undefined;
+    }
+
+    /**
+     * Multiply two numbers.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.7.0
+     * @category Math
+     * @param {number} multiplier The first number in a multiplication.
+     * @param {number} multiplicand The second number in a multiplication.
+     * @returns {number} Returns the product.
+     * @example
+     *
+     * _.multiply(6, 4);
+     * // => 24
+     */
+    var multiply = createMathOperation(function(multiplier, multiplicand) {
+      return multiplier * multiplicand;
+    }, 1);
+
+    /**
+     * Computes `number` rounded to `precision`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.10.0
+     * @category Math
+     * @param {number} number The number to round.
+     * @param {number} [precision=0] The precision to round to.
+     * @returns {number} Returns the rounded number.
+     * @example
+     *
+     * _.round(4.006);
+     * // => 4
+     *
+     * _.round(4.006, 2);
+     * // => 4.01
+     *
+     * _.round(4060, -2);
+     * // => 4100
+     */
+    var round = createRound('round');
+
+    /**
+     * Subtract two numbers.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Math
+     * @param {number} minuend The first number in a subtraction.
+     * @param {number} subtrahend The second number in a subtraction.
+     * @returns {number} Returns the difference.
+     * @example
+     *
+     * _.subtract(6, 4);
+     * // => 2
+     */
+    var subtract = createMathOperation(function(minuend, subtrahend) {
+      return minuend - subtrahend;
+    }, 0);
+
+    /**
+     * Computes the sum of the values in `array`.
+     *
+     * @static
+     * @memberOf _
+     * @since 3.4.0
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @returns {number} Returns the sum.
+     * @example
+     *
+     * _.sum([4, 2, 8, 6]);
+     * // => 20
+     */
+    function sum(array) {
+      return (array && array.length)
+        ? baseSum(array, identity)
+        : 0;
+    }
+
+    /**
+     * This method is like `_.sum` except that it accepts `iteratee` which is
+     * invoked for each element in `array` to generate the value to be summed.
+     * The iteratee is invoked with one argument: (value).
+     *
+     * @static
+     * @memberOf _
+     * @since 4.0.0
+     * @category Math
+     * @param {Array} array The array to iterate over.
+     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+     * @returns {number} Returns the sum.
+     * @example
+     *
+     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
+     *
+     * _.sumBy(objects, function(o) { return o.n; });
+     * // => 20
+     *
+     * // The `_.property` iteratee shorthand.
+     * _.sumBy(objects, 'n');
+     * // => 20
+     */
+    function sumBy(array, iteratee) {
+      return (array && array.length)
+        ? baseSum(array, getIteratee(iteratee, 2))
+        : 0;
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    // Add methods that return wrapped values in chain sequences.
+    lodash.after = after;
+    lodash.ary = ary;
+    lodash.assign = assign;
+    lodash.assignIn = assignIn;
+    lodash.assignInWith = assignInWith;
+    lodash.assignWith = assignWith;
+    lodash.at = at;
+    lodash.before = before;
+    lodash.bind = bind;
+    lodash.bindAll = bindAll;
+    lodash.bindKey = bindKey;
+    lodash.castArray = castArray;
+    lodash.chain = chain;
+    lodash.chunk = chunk;
+    lodash.compact = compact;
+    lodash.concat = concat;
+    lodash.cond = cond;
+    lodash.conforms = conforms;
+    lodash.constant = constant;
+    lodash.countBy = countBy;
+    lodash.create = create;
+    lodash.curry = curry;
+    lodash.curryRight = curryRight;
+    lodash.debounce = debounce;
+    lodash.defaults = defaults;
+    lodash.defaultsDeep = defaultsDeep;
+    lodash.defer = defer;
+    lodash.delay = delay;
+    lodash.difference = difference;
+    lodash.differenceBy = differenceBy;
+    lodash.differenceWith = differenceWith;
+    lodash.drop = drop;
+    lodash.dropRight = dropRight;
+    lodash.dropRightWhile = dropRightWhile;
+    lodash.dropWhile = dropWhile;
+    lodash.fill = fill;
+    lodash.filter = filter;
+    lodash.flatMap = flatMap;
+    lodash.flatMapDeep = flatMapDeep;
+    lodash.flatMapDepth = flatMapDepth;
+    lodash.flatten = flatten;
+    lodash.flattenDeep = flattenDeep;
+    lodash.flattenDepth = flattenDepth;
+    lodash.flip = flip;
+    lodash.flow = flow;
+    lodash.flowRight = flowRight;
+    lodash.fromPairs = fromPairs;
+    lodash.functions = functions;
+    lodash.functionsIn = functionsIn;
+    lodash.groupBy = groupBy;
+    lodash.initial = initial;
+    lodash.intersection = intersection;
+    lodash.intersectionBy = intersectionBy;
+    lodash.intersectionWith = intersectionWith;
+    lodash.invert = invert;
+    lodash.invertBy = invertBy;
+    lodash.invokeMap = invokeMap;
+    lodash.iteratee = iteratee;
+    lodash.keyBy = keyBy;
+    lodash.keys = keys;
+    lodash.keysIn = keysIn;
+    lodash.map = map;
+    lodash.mapKeys = mapKeys;
+    lodash.mapValues = mapValues;
+    lodash.matches = matches;
+    lodash.matchesProperty = matchesProperty;
+    lodash.memoize = memoize;
+    lodash.merge = merge;
+    lodash.mergeWith = mergeWith;
+    lodash.method = method;
+    lodash.methodOf = methodOf;
+    lodash.mixin = mixin;
+    lodash.negate = negate;
+    lodash.nthArg = nthArg;
+    lodash.omit = omit;
+    lodash.omitBy = omitBy;
+    lodash.once = once;
+    lodash.orderBy = orderBy;
+    lodash.over = over;
+    lodash.overArgs = overArgs;
+    lodash.overEvery = overEvery;
+    lodash.overSome = overSome;
+    lodash.partial = partial;
+    lodash.partialRight = partialRight;
+    lodash.partition = partition;
+    lodash.pick = pick;
+    lodash.pickBy = pickBy;
+    lodash.property = property;
+    lodash.propertyOf = propertyOf;
+    lodash.pull = pull;
+    lodash.pullAll = pullAll;
+    lodash.pullAllBy = pullAllBy;
+    lodash.pullAllWith = pullAllWith;
+    lodash.pullAt = pullAt;
+    lodash.range = range;
+    lodash.rangeRight = rangeRight;
+    lodash.rearg = rearg;
+    lodash.reject = reject;
+    lodash.remove = remove;
+    lodash.rest = rest;
+    lodash.reverse = reverse;
+    lodash.sampleSize = sampleSize;
+    lodash.set = set;
+    lodash.setWith = setWith;
+    lodash.shuffle = shuffle;
+    lodash.slice = slice;
+    lodash.sortBy = sortBy;
+    lodash.sortedUniq = sortedUniq;
+    lodash.sortedUniqBy = sortedUniqBy;
+    lodash.split = split;
+    lodash.spread = spread;
+    lodash.tail = tail;
+    lodash.take = take;
+    lodash.takeRight = takeRight;
+    lodash.takeRightWhile = takeRightWhile;
+    lodash.takeWhile = takeWhile;
+    lodash.tap = tap;
+    lodash.throttle = throttle;
+    lodash.thru = thru;
+    lodash.toArray = toArray;
+    lodash.toPairs = toPairs;
+    lodash.toPairsIn = toPairsIn;
+    lodash.toPath = toPath;
+    lodash.toPlainObject = toPlainObject;
+    lodash.transform = transform;
+    lodash.unary = unary;
+    lodash.union = union;
+    lodash.unionBy = unionBy;
+    lodash.unionWith = unionWith;
+    lodash.uniq = uniq;
+    lodash.uniqBy = uniqBy;
+    lodash.uniqWith = uniqWith;
+    lodash.unset = unset;
+    lodash.unzip = unzip;
+    lodash.unzipWith = unzipWith;
+    lodash.update = update;
+    lodash.updateWith = updateWith;
+    lodash.values = values;
+    lodash.valuesIn = valuesIn;
+    lodash.without = without;
+    lodash.words = words;
+    lodash.wrap = wrap;
+    lodash.xor = xor;
+    lodash.xorBy = xorBy;
+    lodash.xorWith = xorWith;
+    lodash.zip = zip;
+    lodash.zipObject = zipObject;
+    lodash.zipObjectDeep = zipObjectDeep;
+    lodash.zipWith = zipWith;
+
+    // Add aliases.
+    lodash.entries = toPairs;
+    lodash.entriesIn = toPairsIn;
+    lodash.extend = assignIn;
+    lodash.extendWith = assignInWith;
+
+    // Add methods to `lodash.prototype`.
+    mixin(lodash, lodash);
+
+    /*------------------------------------------------------------------------*/
+
+    // Add methods that return unwrapped values in chain sequences.
+    lodash.add = add;
+    lodash.attempt = attempt;
+    lodash.camelCase = camelCase;
+    lodash.capitalize = capitalize;
+    lodash.ceil = ceil;
+    lodash.clamp = clamp;
+    lodash.clone = clone;
+    lodash.cloneDeep = cloneDeep;
+    lodash.cloneDeepWith = cloneDeepWith;
+    lodash.cloneWith = cloneWith;
+    lodash.conformsTo = conformsTo;
+    lodash.deburr = deburr;
+    lodash.defaultTo = defaultTo;
+    lodash.divide = divide;
+    lodash.endsWith = endsWith;
+    lodash.eq = eq;
+    lodash.escape = escape;
+    lodash.escapeRegExp = escapeRegExp;
+    lodash.every = every;
+    lodash.find = find;
+    lodash.findIndex = findIndex;
+    lodash.findKey = findKey;
+    lodash.findLast = findLast;
+    lodash.findLastIndex = findLastIndex;
+    lodash.findLastKey = findLastKey;
+    lodash.floor = floor;
+    lodash.forEach = forEach;
+    lodash.forEachRight = forEachRight;
+    lodash.forIn = forIn;
+    lodash.forInRight = forInRight;
+    lodash.forOwn = forOwn;
+    lodash.forOwnRight = forOwnRight;
+    lodash.get = get;
+    lodash.gt = gt;
+    lodash.gte = gte;
+    lodash.has = has;
+    lodash.hasIn = hasIn;
+    lodash.head = head;
+    lodash.identity = identity;
+    lodash.includes = includes;
+    lodash.indexOf = indexOf;
+    lodash.inRange = inRange;
+    lodash.invoke = invoke;
+    lodash.isArguments = isArguments;
+    lodash.isArray = isArray;
+    lodash.isArrayBuffer = isArrayBuffer;
+    lodash.isArrayLike = isArrayLike;
+    lodash.isArrayLikeObject = isArrayLikeObject;
+    lodash.isBoolean = isBoolean;
+    lodash.isBuffer = isBuffer;
+    lodash.isDate = isDate;
+    lodash.isElement = isElement;
+    lodash.isEmpty = isEmpty;
+    lodash.isEqual = isEqual;
+    lodash.isEqualWith = isEqualWith;
+    lodash.isError = isError;
+    lodash.isFinite = isFinite;
+    lodash.isFunction = isFunction;
+    lodash.isInteger = isInteger;
+    lodash.isLength = isLength;
+    lodash.isMap = isMap;
+    lodash.isMatch = isMatch;
+    lodash.isMatchWith = isMatchWith;
+    lodash.isNaN = isNaN;
+    lodash.isNative = isNative;
+    lodash.isNil = isNil;
+    lodash.isNull = isNull;
+    lodash.isNumber = isNumber;
+    lodash.isObject = isObject;
+    lodash.isObjectLike = isObjectLike;
+    lodash.isPlainObject = isPlainObject;
+    lodash.isRegExp = isRegExp;
+    lodash.isSafeInteger = isSafeInteger;
+    lodash.isSet = isSet;
+    lodash.isString = isString;
+    lodash.isSymbol = isSymbol;
+    lodash.isTypedArray = isTypedArray;
+    lodash.isUndefined = isUndefined;
+    lodash.isWeakMap = isWeakMap;
+    lodash.isWeakSet = isWeakSet;
+    lodash.join = join;
+    lodash.kebabCase = kebabCase;
+    lodash.last = last;
+    lodash.lastIndexOf = lastIndexOf;
+    lodash.lowerCase = lowerCase;
+    lodash.lowerFirst = lowerFirst;
+    lodash.lt = lt;
+    lodash.lte = lte;
+    lodash.max = max;
+    lodash.maxBy = maxBy;
+    lodash.mean = mean;
+    lodash.meanBy = meanBy;
+    lodash.min = min;
+    lodash.minBy = minBy;
+    lodash.stubArray = stubArray;
+    lodash.stubFalse = stubFalse;
+    lodash.stubObject = stubObject;
+    lodash.stubString = stubString;
+    lodash.stubTrue = stubTrue;
+    lodash.multiply = multiply;
+    lodash.nth = nth;
+    lodash.noConflict = noConflict;
+    lodash.noop = noop;
+    lodash.now = now;
+    lodash.pad = pad;
+    lodash.padEnd = padEnd;
+    lodash.padStart = padStart;
+    lodash.parseInt = parseInt;
+    lodash.random = random;
+    lodash.reduce = reduce;
+    lodash.reduceRight = reduceRight;
+    lodash.repeat = repeat;
+    lodash.replace = replace;
+    lodash.result = result;
+    lodash.round = round;
+    lodash.runInContext = runInContext;
+    lodash.sample = sample;
+    lodash.size = size;
+    lodash.snakeCase = snakeCase;
+    lodash.some = some;
+    lodash.sortedIndex = sortedIndex;
+    lodash.sortedIndexBy = sortedIndexBy;
+    lodash.sortedIndexOf = sortedIndexOf;
+    lodash.sortedLastIndex = sortedLastIndex;
+    lodash.sortedLastIndexBy = sortedLastIndexBy;
+    lodash.sortedLastIndexOf = sortedLastIndexOf;
+    lodash.startCase = startCase;
+    lodash.startsWith = startsWith;
+    lodash.subtract = subtract;
+    lodash.sum = sum;
+    lodash.sumBy = sumBy;
+    lodash.template = template;
+    lodash.times = times;
+    lodash.toFinite = toFinite;
+    lodash.toInteger = toInteger;
+    lodash.toLength = toLength;
+    lodash.toLower = toLower;
+    lodash.toNumber = toNumber;
+    lodash.toSafeInteger = toSafeInteger;
+    lodash.toString = toString;
+    lodash.toUpper = toUpper;
+    lodash.trim = trim;
+    lodash.trimEnd = trimEnd;
+    lodash.trimStart = trimStart;
+    lodash.truncate = truncate;
+    lodash.unescape = unescape;
+    lodash.uniqueId = uniqueId;
+    lodash.upperCase = upperCase;
+    lodash.upperFirst = upperFirst;
+
+    // Add aliases.
+    lodash.each = forEach;
+    lodash.eachRight = forEachRight;
+    lodash.first = head;
+
+    mixin(lodash, (function() {
+      var source = {};
+      baseForOwn(lodash, function(func, methodName) {
+        if (!hasOwnProperty.call(lodash.prototype, methodName)) {
+          source[methodName] = func;
+        }
+      });
+      return source;
+    }()), { 'chain': false });
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * The semantic version number.
+     *
+     * @static
+     * @memberOf _
+     * @type {string}
+     */
+    lodash.VERSION = VERSION;
+
+    // Assign default placeholders.
+    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
+      lodash[methodName].placeholder = lodash;
+    });
+
+    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
+    arrayEach(['drop', 'take'], function(methodName, index) {
+      LazyWrapper.prototype[methodName] = function(n) {
+        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);
+
+        var result = (this.__filtered__ && !index)
+          ? new LazyWrapper(this)
+          : this.clone();
+
+        if (result.__filtered__) {
+          result.__takeCount__ = nativeMin(n, result.__takeCount__);
+        } else {
+          result.__views__.push({
+            'size': nativeMin(n, MAX_ARRAY_LENGTH),
+            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
+          });
+        }
+        return result;
+      };
+
+      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
+        return this.reverse()[methodName](n).reverse();
+      };
+    });
+
+    // Add `LazyWrapper` methods that accept an `iteratee` value.
+    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
+      var type = index + 1,
+          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;
+
+      LazyWrapper.prototype[methodName] = function(iteratee) {
+        var result = this.clone();
+        result.__iteratees__.push({
+          'iteratee': getIteratee(iteratee, 3),
+          'type': type
+        });
+        result.__filtered__ = result.__filtered__ || isFilter;
+        return result;
+      };
+    });
+
+    // Add `LazyWrapper` methods for `_.head` and `_.last`.
+    arrayEach(['head', 'last'], function(methodName, index) {
+      var takeName = 'take' + (index ? 'Right' : '');
+
+      LazyWrapper.prototype[methodName] = function() {
+        return this[takeName](1).value()[0];
+      };
+    });
+
+    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
+    arrayEach(['initial', 'tail'], function(methodName, index) {
+      var dropName = 'drop' + (index ? '' : 'Right');
+
+      LazyWrapper.prototype[methodName] = function() {
+        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
+      };
+    });
+
+    LazyWrapper.prototype.compact = function() {
+      return this.filter(identity);
+    };
+
+    LazyWrapper.prototype.find = function(predicate) {
+      return this.filter(predicate).head();
+    };
+
+    LazyWrapper.prototype.findLast = function(predicate) {
+      return this.reverse().find(predicate);
+    };
+
+    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
+      if (typeof path == 'function') {
+        return new LazyWrapper(this);
+      }
+      return this.map(function(value) {
+        return baseInvoke(value, path, args);
+      });
+    });
+
+    LazyWrapper.prototype.reject = function(predicate) {
+      return this.filter(negate(getIteratee(predicate)));
+    };
+
+    LazyWrapper.prototype.slice = function(start, end) {
+      start = toInteger(start);
+
+      var result = this;
+      if (result.__filtered__ && (start > 0 || end < 0)) {
+        return new LazyWrapper(result);
+      }
+      if (start < 0) {
+        result = result.takeRight(-start);
+      } else if (start) {
+        result = result.drop(start);
+      }
+      if (end !== undefined) {
+        end = toInteger(end);
+        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
+      }
+      return result;
+    };
+
+    LazyWrapper.prototype.takeRightWhile = function(predicate) {
+      return this.reverse().takeWhile(predicate).reverse();
+    };
+
+    LazyWrapper.prototype.toArray = function() {
+      return this.take(MAX_ARRAY_LENGTH);
+    };
+
+    // Add `LazyWrapper` methods to `lodash.prototype`.
+    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
+      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
+          isTaker = /^(?:head|last)$/.test(methodName),
+          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
+          retUnwrapped = isTaker || /^find/.test(methodName);
+
+      if (!lodashFunc) {
+        return;
+      }
+      lodash.prototype[methodName] = function() {
+        var value = this.__wrapped__,
+            args = isTaker ? [1] : arguments,
+            isLazy = value instanceof LazyWrapper,
+            iteratee = args[0],
+            useLazy = isLazy || isArray(value);
+
+        var interceptor = function(value) {
+          var result = lodashFunc.apply(lodash, arrayPush([value], args));
+          return (isTaker && chainAll) ? result[0] : result;
+        };
+
+        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
+          // Avoid lazy use if the iteratee has a "length" value other than `1`.
+          isLazy = useLazy = false;
+        }
+        var chainAll = this.__chain__,
+            isHybrid = !!this.__actions__.length,
+            isUnwrapped = retUnwrapped && !chainAll,
+            onlyLazy = isLazy && !isHybrid;
+
+        if (!retUnwrapped && useLazy) {
+          value = onlyLazy ? value : new LazyWrapper(this);
+          var result = func.apply(value, args);
+          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
+          return new LodashWrapper(result, chainAll);
+        }
+        if (isUnwrapped && onlyLazy) {
+          return func.apply(this, args);
+        }
+        result = this.thru(interceptor);
+        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
+      };
+    });
+
+    // Add `Array` methods to `lodash.prototype`.
+    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
+      var func = arrayProto[methodName],
+          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
+          retUnwrapped = /^(?:pop|shift)$/.test(methodName);
+
+      lodash.prototype[methodName] = function() {
+        var args = arguments;
+        if (retUnwrapped && !this.__chain__) {
+          var value = this.value();
+          return func.apply(isArray(value) ? value : [], args);
+        }
+        return this[chainName](function(value) {
+          return func.apply(isArray(value) ? value : [], args);
+        });
+      };
+    });
+
+    // Map minified method names to their real names.
+    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
+      var lodashFunc = lodash[methodName];
+      if (lodashFunc) {
+        var key = (lodashFunc.name + ''),
+            names = realNames[key] || (realNames[key] = []);
+
+        names.push({ 'name': methodName, 'func': lodashFunc });
+      }
+    });
+
+    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
+      'name': 'wrapper',
+      'func': undefined
+    }];
+
+    // Add methods to `LazyWrapper`.
+    LazyWrapper.prototype.clone = lazyClone;
+    LazyWrapper.prototype.reverse = lazyReverse;
+    LazyWrapper.prototype.value = lazyValue;
+
+    // Add chain sequence methods to the `lodash` wrapper.
+    lodash.prototype.at = wrapperAt;
+    lodash.prototype.chain = wrapperChain;
+    lodash.prototype.commit = wrapperCommit;
+    lodash.prototype.next = wrapperNext;
+    lodash.prototype.plant = wrapperPlant;
+    lodash.prototype.reverse = wrapperReverse;
+    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
+
+    // Add lazy aliases.
+    lodash.prototype.first = lodash.prototype.head;
+
+    if (symIterator) {
+      lodash.prototype[symIterator] = wrapperToIterator;
+    }
+    return lodash;
+  });
+
+  /*--------------------------------------------------------------------------*/
+
+  // Export lodash.
+  var _ = runInContext();
+
+  // Some AMD build optimizers, like r.js, check for condition patterns like:
+  if (true) {
+    // Expose Lodash on the global object to prevent errors when Lodash is
+    // loaded by a script tag in the presence of an AMD loader.
+    // See http://requirejs.org/docs/errors.html#mismatch for more details.
+    // Use `_.noConflict` to remove Lodash from the global object.
+    root._ = _;
+
+    // Define as an anonymous module so, through path mapping, it can be
+    // referenced as the "underscore" module.
+    !(__WEBPACK_AMD_DEFINE_RESULT__ = (function() {
+      return _;
+    }).call(exports, __webpack_require__, exports, module),
+				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
+  }
+  // Check for `exports` after `define` in case a build optimizer adds it.
+  else if (freeModule) {
+    // Export for Node.js.
+    (freeModule.exports = _)._ = _;
+    // Export for CommonJS support.
+    freeExports._ = _;
+  }
+  else {
+    // Export to the global object.
+    root._ = _;
+  }
+}.call(this));
+
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(10), __webpack_require__(23)(module)))
+
+/***/ }),
+/* 23 */
+/***/ (function(module, exports) {
+
+module.exports = function(module) {
+	if(!module.webpackPolyfill) {
+		module.deprecate = function() {};
+		module.paths = [];
+		// module.parent = undefined by default
+		if(!module.children) module.children = [];
+		Object.defineProperty(module, "loaded", {
+			enumerable: true,
+			get: function() {
+				return module.l;
+			}
+		});
+		Object.defineProperty(module, "id", {
+			enumerable: true,
+			get: function() {
+				return module.i;
+			}
+		});
+		module.webpackPolyfill = 1;
+	}
+	return module;
+};
+
+
+/***/ }),
+/* 24 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(global) {var require;var require;/**
+* plotly.js v1.48.1
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+* Licensed under the MIT license
+*/
+!function(t){if(true)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).Plotly=t()}}(function(){return function(){return function t(e,r,n){function i(o,s){if(!r[o]){if(!e[o]){var l="function"==typeof require&&require;if(!s&&l)return require(o,!0);if(a)return a(o,!0);var c=new Error("Cannot find module '"+o+"'");throw c.code="MODULE_NOT_FOUND",c}var u=r[o]={exports:{}};e[o][0].call(u.exports,function(t){return i(e[o][1][t]||t)},u,u.exports,t,e,r,n)}return r[o].exports}for(var a="function"==typeof require&&require,o=0;o<n.length;o++)i(n[o]);return i}}()({1:[function(t,e,r){"use strict";var n=t("../src/lib"),i={"X,X div":"direction:ltr;font-family:'Open Sans', verdana, arial, sans-serif;margin:0;padding:0;","X input,X button":"font-family:'Open Sans', verdana, arial, sans-serif;","X input:focus,X button:focus":"outline:none;","X 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f=1;for(c=l(t,u,t.length,e),u=0;u<o;u++)f*=e;this.imuln(f),this.words[0]+c<67108864?this.words[0]+=c:this._iaddn(c)}},a.prototype.copy=function(t){t.words=new Array(this.length);for(var e=0;e<this.length;e++)t.words[e]=this.words[e];t.length=this.length,t.negative=this.negative,t.red=this.red},a.prototype.clone=function(){var t=new a(null);return this.copy(t),t},a.prototype._expand=function(t){for(;this.length<t;)this.words[this.length++]=0;return this},a.prototype.strip=function(){for(;this.length>1&&0===this.words[this.length-1];)this.length--;return this._normSign()},a.prototype._normSign=function(){return 1===this.length&&0===this.words[0]&&(this.negative=0),this},a.prototype.inspect=function(){return(this.red?"<BN-R: ":"<BN: ")+this.toString(16)+">"};var 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u=l>>>26,f=67108863&l,h=Math.min(c,e.length-1),p=Math.max(0,c-t.length+1);p<=h;p++){var d=c-p|0;u+=(o=(i=0|t.words[d])*(a=0|e.words[p])+f)/67108864|0,f=67108863&o}r.words[c]=0|f,l=0|u}return 0!==l?r.words[c]=0|l:r.length--,r.strip()}a.prototype.toString=function(t,e){var r;if(e=0|e||1,16===(t=t||10)||"hex"===t){r="";for(var i=0,a=0,o=0;o<this.length;o++){var s=this.words[o],l=(16777215&(s<<i|a)).toString(16);r=0!==(a=s>>>24-i&16777215)||o!==this.length-1?c[6-l.length]+l+r:l+r,(i+=2)>=26&&(i-=26,o--)}for(0!==a&&(r=a.toString(16)+r);r.length%e!=0;)r="0"+r;return 0!==this.negative&&(r="-"+r),r}if(t===(0|t)&&t>=2&&t<=36){var h=u[t],p=f[t];r="";var d=this.clone();for(d.negative=0;!d.isZero();){var g=d.modn(p).toString(t);r=(d=d.idivn(p)).isZero()?g+r:c[h-g.length]+g+r}for(this.isZero()&&(r="0"+r);r.length%e!=0;)r="0"+r;return 0!==this.negative&&(r="-"+r),r}n(!1,"Base should be between 2 and 36")},a.prototype.toNumber=function(){var t=this.words[0];return 2===this.length?t+=67108864*this.words[1]:3===this.length&&1===this.words[2]?t+=4503599627370496+67108864*this.words[1]:this.length>2&&n(!1,"Number can only safely store up to 53 bits"),0!==this.negative?-t:t},a.prototype.toJSON=function(){return this.toString(16)},a.prototype.toBuffer=function(t,e){return n("undefined"!=typeof o),this.toArrayLike(o,t,e)},a.prototype.toArray=function(t,e){return this.toArrayLike(Array,t,e)},a.prototype.toArrayLike=function(t,e,r){var i=this.byteLength(),a=r||Math.max(1,i);n(i<=a,"byte array longer than desired length"),n(a>0,"Requested array length <= 0"),this.strip();var o,s,l="le"===e,c=new t(a),u=this.clone();if(l){for(s=0;!u.isZero();s++)o=u.andln(255),u.iushrn(8),c[s]=o;for(;s<a;s++)c[s]=0}else{for(s=0;s<a-i;s++)c[s]=0;for(s=0;!u.isZero();s++)o=u.andln(255),u.iushrn(8),c[a-s-1]=o}return c},Math.clz32?a.prototype._countBits=function(t){return 32-Math.clz32(t)}:a.prototype._countBits=function(t){var e=t,r=0;return 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e,r;this.length>t.length?(e=this,r=t):(e=t,r=this);for(var n=0;n<r.length;n++)this.words[n]=e.words[n]^r.words[n];if(this!==e)for(;n<e.length;n++)this.words[n]=e.words[n];return this.length=e.length,this.strip()},a.prototype.ixor=function(t){return n(0==(this.negative|t.negative)),this.iuxor(t)},a.prototype.xor=function(t){return this.length>t.length?this.clone().ixor(t):t.clone().ixor(this)},a.prototype.uxor=function(t){return this.length>t.length?this.clone().iuxor(t):t.clone().iuxor(this)},a.prototype.inotn=function(t){n("number"==typeof t&&t>=0);var e=0|Math.ceil(t/26),r=t%26;this._expand(e),r>0&&e--;for(var i=0;i<e;i++)this.words[i]=67108863&~this.words[i];return r>0&&(this.words[i]=~this.words[i]&67108863>>26-r),this.strip()},a.prototype.notn=function(t){return this.clone().inotn(t)},a.prototype.setn=function(t,e){n("number"==typeof t&&t>=0);var r=t/26|0,i=t%26;return this._expand(r+1),this.words[r]=e?this.words[r]|1<<i:this.words[r]&~(1<<i),this.strip()},a.prototype.iadd=function(t){var e,r,n;if(0!==this.negative&&0===t.negative)return this.negative=0,e=this.isub(t),this.negative^=1,this._normSign();if(0===this.negative&&0!==t.negative)return t.negative=0,e=this.isub(t),t.negative=1,e._normSign();this.length>t.length?(r=this,n=t):(r=t,n=this);for(var i=0,a=0;a<n.length;a++)e=(0|r.words[a])+(0|n.words[a])+i,this.words[a]=67108863&e,i=e>>>26;for(;0!==i&&a<r.length;a++)e=(0|r.words[a])+i,this.words[a]=67108863&e,i=e>>>26;if(this.length=r.length,0!==i)this.words[this.length]=i,this.length++;else if(r!==this)for(;a<r.length;a++)this.words[a]=r.words[a];return this},a.prototype.add=function(t){var e;return 0!==t.negative&&0===this.negative?(t.negative=0,e=this.sub(t),t.negative^=1,e):0===t.negative&&0!==this.negative?(this.negative=0,e=t.sub(this),this.negative=1,e):this.length>t.length?this.clone().iadd(t):t.clone().iadd(this)},a.prototype.isub=function(t){if(0!==t.negative){t.negative=0;var e=this.iadd(t);return t.negative=1,e._normSign()}if(0!==this.negative)return this.negative=0,this.iadd(t),this.negative=1,this._normSign();var r,n,i=this.cmp(t);if(0===i)return this.negative=0,this.length=1,this.words[0]=0,this;i>0?(r=this,n=t):(r=t,n=this);for(var a=0,o=0;o<n.length;o++)a=(e=(0|r.words[o])-(0|n.words[o])+a)>>26,this.words[o]=67108863&e;for(;0!==a&&o<r.length;o++)a=(e=(0|r.words[o])+a)>>26,this.words[o]=67108863&e;if(0===a&&o<r.length&&r!==this)for(;o<r.length;o++)this.words[o]=r.words[o];return this.length=Math.max(this.length,o),r!==this&&(this.negative=1),this.strip()},a.prototype.sub=function(t){return this.clone().isub(t)};var p=function(t,e,r){var 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wt=(c+(n=n+Math.imul(f,at)|0)|0)+((8191&(i=(i=i+Math.imul(f,ot)|0)+Math.imul(h,at)|0))<<13)|0;c=((a=a+Math.imul(h,ot)|0)+(i>>>13)|0)+(wt>>>26)|0,wt&=67108863,n=Math.imul(O,V),i=(i=Math.imul(O,U))+Math.imul(I,V)|0,a=Math.imul(I,U),n=n+Math.imul(C,q)|0,i=(i=i+Math.imul(C,G)|0)+Math.imul(L,q)|0,a=a+Math.imul(L,G)|0,n=n+Math.imul(M,W)|0,i=(i=i+Math.imul(M,X)|0)+Math.imul(S,W)|0,a=a+Math.imul(S,X)|0,n=n+Math.imul(k,$)|0,i=(i=i+Math.imul(k,J)|0)+Math.imul(T,$)|0,a=a+Math.imul(T,J)|0,n=n+Math.imul(b,Q)|0,i=(i=i+Math.imul(b,tt)|0)+Math.imul(_,Q)|0,a=a+Math.imul(_,tt)|0,n=n+Math.imul(m,rt)|0,i=(i=i+Math.imul(m,nt)|0)+Math.imul(y,rt)|0,a=a+Math.imul(y,nt)|0,n=n+Math.imul(d,at)|0,i=(i=i+Math.imul(d,ot)|0)+Math.imul(g,at)|0,a=a+Math.imul(g,ot)|0;var kt=(c+(n=n+Math.imul(f,lt)|0)|0)+((8191&(i=(i=i+Math.imul(f,ct)|0)+Math.imul(h,lt)|0))<<13)|0;c=((a=a+Math.imul(h,ct)|0)+(i>>>13)|0)+(kt>>>26)|0,kt&=67108863,n=Math.imul(P,V),i=(i=Math.imul(P,U))+Math.imul(R,V)|0,a=Math.imul(R,U),n=n+Math.imul(O,q)|0,i=(i=i+Math.imul(O,G)|0)+Math.imul(I,q)|0,a=a+Math.imul(I,G)|0,n=n+Math.imul(C,W)|0,i=(i=i+Math.imul(C,X)|0)+Math.imul(L,W)|0,a=a+Math.imul(L,X)|0,n=n+Math.imul(M,$)|0,i=(i=i+Math.imul(M,J)|0)+Math.imul(S,$)|0,a=a+Math.imul(S,J)|0,n=n+Math.imul(k,Q)|0,i=(i=i+Math.imul(k,tt)|0)+Math.imul(T,Q)|0,a=a+Math.imul(T,tt)|0,n=n+Math.imul(b,rt)|0,i=(i=i+Math.imul(b,nt)|0)+Math.imul(_,rt)|0,a=a+Math.imul(_,nt)|0,n=n+Math.imul(m,at)|0,i=(i=i+Math.imul(m,ot)|0)+Math.imul(y,at)|0,a=a+Math.imul(y,ot)|0,n=n+Math.imul(d,lt)|0,i=(i=i+Math.imul(d,ct)|0)+Math.imul(g,lt)|0,a=a+Math.imul(g,ct)|0;var Tt=(c+(n=n+Math.imul(f,ft)|0)|0)+((8191&(i=(i=i+Math.imul(f,ht)|0)+Math.imul(h,ft)|0))<<13)|0;c=((a=a+Math.imul(h,ht)|0)+(i>>>13)|0)+(Tt>>>26)|0,Tt&=67108863,n=Math.imul(B,V),i=(i=Math.imul(B,U))+Math.imul(N,V)|0,a=Math.imul(N,U),n=n+Math.imul(P,q)|0,i=(i=i+Math.imul(P,G)|0)+Math.imul(R,q)|0,a=a+Math.imul(R,G)|0,n=n+Math.imul(O,W)|0,i=(i=i+Math.imul(O,X)|0)+Math.imul(I,W)|0,a=a+Math.imul(I,X)|0,n=n+Math.imul(C,$)|0,i=(i=i+Math.imul(C,J)|0)+Math.imul(L,$)|0,a=a+Math.imul(L,J)|0,n=n+Math.imul(M,Q)|0,i=(i=i+Math.imul(M,tt)|0)+Math.imul(S,Q)|0,a=a+Math.imul(S,tt)|0,n=n+Math.imul(k,rt)|0,i=(i=i+Math.imul(k,nt)|0)+Math.imul(T,rt)|0,a=a+Math.imul(T,nt)|0,n=n+Math.imul(b,at)|0,i=(i=i+Math.imul(b,ot)|0)+Math.imul(_,at)|0,a=a+Math.imul(_,ot)|0,n=n+Math.imul(m,lt)|0,i=(i=i+Math.imul(m,ct)|0)+Math.imul(y,lt)|0,a=a+Math.imul(y,ct)|0,n=n+Math.imul(d,ft)|0,i=(i=i+Math.imul(d,ht)|0)+Math.imul(g,ft)|0,a=a+Math.imul(g,ht)|0;var At=(c+(n=n+Math.imul(f,dt)|0)|0)+((8191&(i=(i=i+Math.imul(f,gt)|0)+Math.imul(h,dt)|0))<<13)|0;c=((a=a+Math.imul(h,gt)|0)+(i>>>13)|0)+(At>>>26)|0,At&=67108863,n=Math.imul(B,q),i=(i=Math.imul(B,G))+Math.imul(N,q)|0,a=Math.imul(N,G),n=n+Math.imul(P,W)|0,i=(i=i+Math.imul(P,X)|0)+Math.imul(R,W)|0,a=a+Math.imul(R,X)|0,n=n+Math.imul(O,$)|0,i=(i=i+Math.imul(O,J)|0)+Math.imul(I,$)|0,a=a+Math.imul(I,J)|0,n=n+Math.imul(C,Q)|0,i=(i=i+Math.imul(C,tt)|0)+Math.imul(L,Q)|0,a=a+Math.imul(L,tt)|0,n=n+Math.imul(M,rt)|0,i=(i=i+Math.imul(M,nt)|0)+Math.imul(S,rt)|0,a=a+Math.imul(S,nt)|0,n=n+Math.imul(k,at)|0,i=(i=i+Math.imul(k,ot)|0)+Math.imul(T,at)|0,a=a+Math.imul(T,ot)|0,n=n+Math.imul(b,lt)|0,i=(i=i+Math.imul(b,ct)|0)+Math.imul(_,lt)|0,a=a+Math.imul(_,ct)|0,n=n+Math.imul(m,ft)|0,i=(i=i+Math.imul(m,ht)|0)+Math.imul(y,ft)|0,a=a+Math.imul(y,ht)|0;var Mt=(c+(n=n+Math.imul(d,dt)|0)|0)+((8191&(i=(i=i+Math.imul(d,gt)|0)+Math.imul(g,dt)|0))<<13)|0;c=((a=a+Math.imul(g,gt)|0)+(i>>>13)|0)+(Mt>>>26)|0,Mt&=67108863,n=Math.imul(B,W),i=(i=Math.imul(B,X))+Math.imul(N,W)|0,a=Math.imul(N,X),n=n+Math.imul(P,$)|0,i=(i=i+Math.imul(P,J)|0)+Math.imul(R,$)|0,a=a+Math.imul(R,J)|0,n=n+Math.imul(O,Q)|0,i=(i=i+Math.imul(O,tt)|0)+Math.imul(I,Q)|0,a=a+Math.imul(I,tt)|0,n=n+Math.imul(C,rt)|0,i=(i=i+Math.imul(C,nt)|0)+Math.imul(L,rt)|0,a=a+Math.imul(L,nt)|0,n=n+Math.imul(M,at)|0,i=(i=i+Math.imul(M,ot)|0)+Math.imul(S,at)|0,a=a+Math.imul(S,ot)|0,n=n+Math.imul(k,lt)|0,i=(i=i+Math.imul(k,ct)|0)+Math.imul(T,lt)|0,a=a+Math.imul(T,ct)|0,n=n+Math.imul(b,ft)|0,i=(i=i+Math.imul(b,ht)|0)+Math.imul(_,ft)|0,a=a+Math.imul(_,ht)|0;var St=(c+(n=n+Math.imul(m,dt)|0)|0)+((8191&(i=(i=i+Math.imul(m,gt)|0)+Math.imul(y,dt)|0))<<13)|0;c=((a=a+Math.imul(y,gt)|0)+(i>>>13)|0)+(St>>>26)|0,St&=67108863,n=Math.imul(B,$),i=(i=Math.imul(B,J))+Math.imul(N,$)|0,a=Math.imul(N,J),n=n+Math.imul(P,Q)|0,i=(i=i+Math.imul(P,tt)|0)+Math.imul(R,Q)|0,a=a+Math.imul(R,tt)|0,n=n+Math.imul(O,rt)|0,i=(i=i+Math.imul(O,nt)|0)+Math.imul(I,rt)|0,a=a+Math.imul(I,nt)|0,n=n+Math.imul(C,at)|0,i=(i=i+Math.imul(C,ot)|0)+Math.imul(L,at)|0,a=a+Math.imul(L,ot)|0,n=n+Math.imul(M,lt)|0,i=(i=i+Math.imul(M,ct)|0)+Math.imul(S,lt)|0,a=a+Math.imul(S,ct)|0,n=n+Math.imul(k,ft)|0,i=(i=i+Math.imul(k,ht)|0)+Math.imul(T,ft)|0,a=a+Math.imul(T,ht)|0;var Et=(c+(n=n+Math.imul(b,dt)|0)|0)+((8191&(i=(i=i+Math.imul(b,gt)|0)+Math.imul(_,dt)|0))<<13)|0;c=((a=a+Math.imul(_,gt)|0)+(i>>>13)|0)+(Et>>>26)|0,Et&=67108863,n=Math.imul(B,Q),i=(i=Math.imul(B,tt))+Math.imul(N,Q)|0,a=Math.imul(N,tt),n=n+Math.imul(P,rt)|0,i=(i=i+Math.imul(P,nt)|0)+Math.imul(R,rt)|0,a=a+Math.imul(R,nt)|0,n=n+Math.imul(O,at)|0,i=(i=i+Math.imul(O,ot)|0)+Math.imul(I,at)|0,a=a+Math.imul(I,ot)|0,n=n+Math.imul(C,lt)|0,i=(i=i+Math.imul(C,ct)|0)+Math.imul(L,lt)|0,a=a+Math.imul(L,ct)|0,n=n+Math.imul(M,ft)|0,i=(i=i+Math.imul(M,ht)|0)+Math.imul(S,ft)|0,a=a+Math.imul(S,ht)|0;var Ct=(c+(n=n+Math.imul(k,dt)|0)|0)+((8191&(i=(i=i+Math.imul(k,gt)|0)+Math.imul(T,dt)|0))<<13)|0;c=((a=a+Math.imul(T,gt)|0)+(i>>>13)|0)+(Ct>>>26)|0,Ct&=67108863,n=Math.imul(B,rt),i=(i=Math.imul(B,nt))+Math.imul(N,rt)|0,a=Math.imul(N,nt),n=n+Math.imul(P,at)|0,i=(i=i+Math.imul(P,ot)|0)+Math.imul(R,at)|0,a=a+Math.imul(R,ot)|0,n=n+Math.imul(O,lt)|0,i=(i=i+Math.imul(O,ct)|0)+Math.imul(I,lt)|0,a=a+Math.imul(I,ct)|0,n=n+Math.imul(C,ft)|0,i=(i=i+Math.imul(C,ht)|0)+Math.imul(L,ft)|0,a=a+Math.imul(L,ht)|0;var Lt=(c+(n=n+Math.imul(M,dt)|0)|0)+((8191&(i=(i=i+Math.imul(M,gt)|0)+Math.imul(S,dt)|0))<<13)|0;c=((a=a+Math.imul(S,gt)|0)+(i>>>13)|0)+(Lt>>>26)|0,Lt&=67108863,n=Math.imul(B,at),i=(i=Math.imul(B,ot))+Math.imul(N,at)|0,a=Math.imul(N,ot),n=n+Math.imul(P,lt)|0,i=(i=i+Math.imul(P,ct)|0)+Math.imul(R,lt)|0,a=a+Math.imul(R,ct)|0,n=n+Math.imul(O,ft)|0,i=(i=i+Math.imul(O,ht)|0)+Math.imul(I,ft)|0,a=a+Math.imul(I,ht)|0;var zt=(c+(n=n+Math.imul(C,dt)|0)|0)+((8191&(i=(i=i+Math.imul(C,gt)|0)+Math.imul(L,dt)|0))<<13)|0;c=((a=a+Math.imul(L,gt)|0)+(i>>>13)|0)+(zt>>>26)|0,zt&=67108863,n=Math.imul(B,lt),i=(i=Math.imul(B,ct))+Math.imul(N,lt)|0,a=Math.imul(N,ct),n=n+Math.imul(P,ft)|0,i=(i=i+Math.imul(P,ht)|0)+Math.imul(R,ft)|0,a=a+Math.imul(R,ht)|0;var Ot=(c+(n=n+Math.imul(O,dt)|0)|0)+((8191&(i=(i=i+Math.imul(O,gt)|0)+Math.imul(I,dt)|0))<<13)|0;c=((a=a+Math.imul(I,gt)|0)+(i>>>13)|0)+(Ot>>>26)|0,Ot&=67108863,n=Math.imul(B,ft),i=(i=Math.imul(B,ht))+Math.imul(N,ft)|0,a=Math.imul(N,ht);var It=(c+(n=n+Math.imul(P,dt)|0)|0)+((8191&(i=(i=i+Math.imul(P,gt)|0)+Math.imul(R,dt)|0))<<13)|0;c=((a=a+Math.imul(R,gt)|0)+(i>>>13)|0)+(It>>>26)|0,It&=67108863;var Dt=(c+(n=Math.imul(B,dt))|0)+((8191&(i=(i=Math.imul(B,gt))+Math.imul(N,dt)|0))<<13)|0;return c=((a=Math.imul(N,gt))+(i>>>13)|0)+(Dt>>>26)|0,Dt&=67108863,l[0]=vt,l[1]=mt,l[2]=yt,l[3]=xt,l[4]=bt,l[5]=_t,l[6]=wt,l[7]=kt,l[8]=Tt,l[9]=At,l[10]=Mt,l[11]=St,l[12]=Et,l[13]=Ct,l[14]=Lt,l[15]=zt,l[16]=Ot,l[17]=It,l[18]=Dt,0!==c&&(l[19]=c,r.length++),r};function d(t,e,r){return(new g).mulp(t,e,r)}function g(t,e){this.x=t,this.y=e}Math.imul||(p=h),a.prototype.mulTo=function(t,e){var r=this.length+t.length;return 10===this.length&&10===t.length?p(this,t,e):r<63?h(this,t,e):r<1024?function(t,e,r){r.negative=e.negative^t.negative,r.length=t.length+e.length;for(var n=0,i=0,a=0;a<r.length-1;a++){var o=i;i=0;for(var s=67108863&n,l=Math.min(a,e.length-1),c=Math.max(0,a-t.length+1);c<=l;c++){var u=a-c,f=(0|t.words[u])*(0|e.words[c]),h=67108863&f;s=67108863&(h=h+s|0),i+=(o=(o=o+(f/67108864|0)|0)+(h>>>26)|0)>>>26,o&=67108863}r.words[a]=s,n=o,o=i}return 0!==n?r.words[a]=n:r.length--,r.strip()}(this,t,e):d(this,t,e)},g.prototype.makeRBT=function(t){for(var e=new Array(t),r=a.prototype._countBits(t)-1,n=0;n<t;n++)e[n]=this.revBin(n,r,t);return e},g.prototype.revBin=function(t,e,r){if(0===t||t===r-1)return t;for(var n=0,i=0;i<e;i++)n|=(1&t)<<e-i-1,t>>=1;return n},g.prototype.permute=function(t,e,r,n,i,a){for(var o=0;o<a;o++)n[o]=e[t[o]],i[o]=r[t[o]]},g.prototype.transform=function(t,e,r,n,i,a){this.permute(a,t,e,r,n,i);for(var o=1;o<i;o<<=1)for(var s=o<<1,l=Math.cos(2*Math.PI/s),c=Math.sin(2*Math.PI/s),u=0;u<i;u+=s)for(var f=l,h=c,p=0;p<o;p++){var d=r[u+p],g=n[u+p],v=r[u+p+o],m=n[u+p+o],y=f*v-h*m;m=f*m+h*v,v=y,r[u+p]=d+v,n[u+p]=g+m,r[u+p+o]=d-v,n[u+p+o]=g-m,p!==s&&(y=l*f-c*h,h=l*h+c*f,f=y)}},g.prototype.guessLen13b=function(t,e){var r=1|Math.max(e,t),n=1&r,i=0;for(r=r/2|0;r;r>>>=1)i++;return 1<<i+1+n},g.prototype.conjugate=function(t,e,r){if(!(r<=1))for(var n=0;n<r/2;n++){var i=t[n];t[n]=t[r-n-1],t[r-n-1]=i,i=e[n],e[n]=-e[r-n-1],e[r-n-1]=-i}},g.prototype.normalize13b=function(t,e){for(var r=0,n=0;n<e/2;n++){var i=8192*Math.round(t[2*n+1]/e)+Math.round(t[2*n]/e)+r;t[n]=67108863&i,r=i<67108864?0:i/67108864|0}return t},g.prototype.convert13b=function(t,e,r,i){for(var a=0,o=0;o<e;o++)a+=0|t[o],r[2*o]=8191&a,a>>>=13,r[2*o+1]=8191&a,a>>>=13;for(o=2*e;o<i;++o)r[o]=0;n(0===a),n(0==(-8192&a))},g.prototype.stub=function(t){for(var e=new Array(t),r=0;r<t;r++)e[r]=0;return e},g.prototype.mulp=function(t,e,r){var n=2*this.guessLen13b(t.length,e.length),i=this.makeRBT(n),a=this.stub(n),o=new Array(n),s=new Array(n),l=new Array(n),c=new Array(n),u=new Array(n),f=new Array(n),h=r.words;h.length=n,this.convert13b(t.words,t.length,o,n),this.convert13b(e.words,e.length,c,n),this.transform(o,a,s,l,n,i),this.transform(c,a,u,f,n,i);for(var p=0;p<n;p++){var d=s[p]*u[p]-l[p]*f[p];l[p]=s[p]*f[p]+l[p]*u[p],s[p]=d}return this.conjugate(s,l,n),this.transform(s,l,h,a,n,i),this.conjugate(h,a,n),this.normalize13b(h,n),r.negative=t.negative^e.negative,r.length=t.length+e.length,r.strip()},a.prototype.mul=function(t){var e=new a(null);return e.words=new Array(this.length+t.length),this.mulTo(t,e)},a.prototype.mulf=function(t){var e=new a(null);return e.words=new Array(this.length+t.length),d(this,t,e)},a.prototype.imul=function(t){return this.clone().mulTo(t,this)},a.prototype.imuln=function(t){n("number"==typeof t),n(t<67108864);for(var e=0,r=0;r<this.length;r++){var i=(0|this.words[r])*t,a=(67108863&i)+(67108863&e);e>>=26,e+=i/67108864|0,e+=a>>>26,this.words[r]=67108863&a}return 0!==e&&(this.words[r]=e,this.length++),this},a.prototype.muln=function(t){return this.clone().imuln(t)},a.prototype.sqr=function(){return this.mul(this)},a.prototype.isqr=function(){return this.imul(this.clone())},a.prototype.pow=function(t){var e=function(t){for(var e=new Array(t.bitLength()),r=0;r<e.length;r++){var n=r/26|0,i=r%26;e[r]=(t.words[n]&1<<i)>>>i}return e}(t);if(0===e.length)return new a(1);for(var r=this,n=0;n<e.length&&0===e[n];n++,r=r.sqr());if(++n<e.length)for(var i=r.sqr();n<e.length;n++,i=i.sqr())0!==e[n]&&(r=r.mul(i));return r},a.prototype.iushln=function(t){n("number"==typeof t&&t>=0);var e,r=t%26,i=(t-r)/26,a=67108863>>>26-r<<26-r;if(0!==r){var o=0;for(e=0;e<this.length;e++){var s=this.words[e]&a,l=(0|this.words[e])-s<<r;this.words[e]=l|o,o=s>>>26-r}o&&(this.words[e]=o,this.length++)}if(0!==i){for(e=this.length-1;e>=0;e--)this.words[e+i]=this.words[e];for(e=0;e<i;e++)this.words[e]=0;this.length+=i}return this.strip()},a.prototype.ishln=function(t){return n(0===this.negative),this.iushln(t)},a.prototype.iushrn=function(t,e,r){var i;n("number"==typeof t&&t>=0),i=e?(e-e%26)/26:0;var a=t%26,o=Math.min((t-a)/26,this.length),s=67108863^67108863>>>a<<a,l=r;if(i-=o,i=Math.max(0,i),l){for(var c=0;c<o;c++)l.words[c]=this.words[c];l.length=o}if(0===o);else if(this.length>o)for(this.length-=o,c=0;c<this.length;c++)this.words[c]=this.words[c+o];else this.words[0]=0,this.length=1;var u=0;for(c=this.length-1;c>=0&&(0!==u||c>=i);c--){var f=0|this.words[c];this.words[c]=u<<26-a|f>>>a,u=f&s}return l&&0!==u&&(l.words[l.length++]=u),0===this.length&&(this.words[0]=0,this.length=1),this.strip()},a.prototype.ishrn=function(t,e,r){return n(0===this.negative),this.iushrn(t,e,r)},a.prototype.shln=function(t){return this.clone().ishln(t)},a.prototype.ushln=function(t){return this.clone().iushln(t)},a.prototype.shrn=function(t){return this.clone().ishrn(t)},a.prototype.ushrn=function(t){return this.clone().iushrn(t)},a.prototype.testn=function(t){n("number"==typeof t&&t>=0);var e=t%26,r=(t-e)/26,i=1<<e;return!(this.length<=r)&&!!(this.words[r]&i)},a.prototype.imaskn=function(t){n("number"==typeof t&&t>=0);var e=t%26,r=(t-e)/26;if(n(0===this.negative,"imaskn works only with positive numbers"),this.length<=r)return this;if(0!==e&&r++,this.length=Math.min(r,this.length),0!==e){var i=67108863^67108863>>>e<<e;this.words[this.length-1]&=i}return this.strip()},a.prototype.maskn=function(t){return this.clone().imaskn(t)},a.prototype.iaddn=function(t){return n("number"==typeof t),n(t<67108864),t<0?this.isubn(-t):0!==this.negative?1===this.length&&(0|this.words[0])<t?(this.words[0]=t-(0|this.words[0]),this.negative=0,this):(this.negative=0,this.isubn(t),this.negative=1,this):this._iaddn(t)},a.prototype._iaddn=function(t){this.words[0]+=t;for(var e=0;e<this.length&&this.words[e]>=67108864;e++)this.words[e]-=67108864,e===this.length-1?this.words[e+1]=1:this.words[e+1]++;return this.length=Math.max(this.length,e+1),this},a.prototype.isubn=function(t){if(n("number"==typeof t),n(t<67108864),t<0)return this.iaddn(-t);if(0!==this.negative)return this.negative=0,this.iaddn(t),this.negative=1,this;if(this.words[0]-=t,1===this.length&&this.words[0]<0)this.words[0]=-this.words[0],this.negative=1;else for(var e=0;e<this.length&&this.words[e]<0;e++)this.words[e]+=67108864,this.words[e+1]-=1;return this.strip()},a.prototype.addn=function(t){return this.clone().iaddn(t)},a.prototype.subn=function(t){return this.clone().isubn(t)},a.prototype.iabs=function(){return this.negative=0,this},a.prototype.abs=function(){return this.clone().iabs()},a.prototype._ishlnsubmul=function(t,e,r){var i,a,o=t.length+r;this._expand(o);var s=0;for(i=0;i<t.length;i++){a=(0|this.words[i+r])+s;var l=(0|t.words[i])*e;s=((a-=67108863&l)>>26)-(l/67108864|0),this.words[i+r]=67108863&a}for(;i<this.length-r;i++)s=(a=(0|this.words[i+r])+s)>>26,this.words[i+r]=67108863&a;if(0===s)return this.strip();for(n(-1===s),s=0,i=0;i<this.length;i++)s=(a=-(0|this.words[i])+s)>>26,this.words[i]=67108863&a;return this.negative=1,this.strip()},a.prototype._wordDiv=function(t,e){var r=(this.length,t.length),n=this.clone(),i=t,o=0|i.words[i.length-1];0!==(r=26-this._countBits(o))&&(i=i.ushln(r),n.iushln(r),o=0|i.words[i.length-1]);var s,l=n.length-i.length;if("mod"!==e){(s=new a(null)).length=l+1,s.words=new Array(s.length);for(var c=0;c<s.length;c++)s.words[c]=0}var u=n.clone()._ishlnsubmul(i,1,l);0===u.negative&&(n=u,s&&(s.words[l]=1));for(var f=l-1;f>=0;f--){var h=67108864*(0|n.words[i.length+f])+(0|n.words[i.length+f-1]);for(h=Math.min(h/o|0,67108863),n._ishlnsubmul(i,h,f);0!==n.negative;)h--,n.negative=0,n._ishlnsubmul(i,1,f),n.isZero()||(n.negative^=1);s&&(s.words[f]=h)}return s&&s.strip(),n.strip(),"div"!==e&&0!==r&&n.iushrn(r),{div:s||null,mod:n}},a.prototype.divmod=function(t,e,r){return n(!t.isZero()),this.isZero()?{div:new a(0),mod:new a(0)}:0!==this.negative&&0===t.negative?(s=this.neg().divmod(t,e),"mod"!==e&&(i=s.div.neg()),"div"!==e&&(o=s.mod.neg(),r&&0!==o.negative&&o.iadd(t)),{div:i,mod:o}):0===this.negative&&0!==t.negative?(s=this.divmod(t.neg(),e),"mod"!==e&&(i=s.div.neg()),{div:i,mod:s.mod}):0!=(this.negative&t.negative)?(s=this.neg().divmod(t.neg(),e),"div"!==e&&(o=s.mod.neg(),r&&0!==o.negative&&o.isub(t)),{div:s.div,mod:o}):t.length>this.length||this.cmp(t)<0?{div:new a(0),mod:this}:1===t.length?"div"===e?{div:this.divn(t.words[0]),mod:null}:"mod"===e?{div:null,mod:new a(this.modn(t.words[0]))}:{div:this.divn(t.words[0]),mod:new a(this.modn(t.words[0]))}:this._wordDiv(t,e);var i,o,s},a.prototype.div=function(t){return this.divmod(t,"div",!1).div},a.prototype.mod=function(t){return this.divmod(t,"mod",!1).mod},a.prototype.umod=function(t){return this.divmod(t,"mod",!0).mod},a.prototype.divRound=function(t){var e=this.divmod(t);if(e.mod.isZero())return e.div;var r=0!==e.div.negative?e.mod.isub(t):e.mod,n=t.ushrn(1),i=t.andln(1),a=r.cmp(n);return a<0||1===i&&0===a?e.div:0!==e.div.negative?e.div.isubn(1):e.div.iaddn(1)},a.prototype.modn=function(t){n(t<=67108863);for(var e=(1<<26)%t,r=0,i=this.length-1;i>=0;i--)r=(e*r+(0|this.words[i]))%t;return r},a.prototype.idivn=function(t){n(t<=67108863);for(var e=0,r=this.length-1;r>=0;r--){var i=(0|this.words[r])+67108864*e;this.words[r]=i/t|0,e=i%t}return this.strip()},a.prototype.divn=function(t){return this.clone().idivn(t)},a.prototype.egcd=function(t){n(0===t.negative),n(!t.isZero());var e=this,r=t.clone();e=0!==e.negative?e.umod(t):e.clone();for(var i=new a(1),o=new a(0),s=new a(0),l=new a(1),c=0;e.isEven()&&r.isEven();)e.iushrn(1),r.iushrn(1),++c;for(var u=r.clone(),f=e.clone();!e.isZero();){for(var h=0,p=1;0==(e.words[0]&p)&&h<26;++h,p<<=1);if(h>0)for(e.iushrn(h);h-- >0;)(i.isOdd()||o.isOdd())&&(i.iadd(u),o.isub(f)),i.iushrn(1),o.iushrn(1);for(var d=0,g=1;0==(r.words[0]&g)&&d<26;++d,g<<=1);if(d>0)for(r.iushrn(d);d-- >0;)(s.isOdd()||l.isOdd())&&(s.iadd(u),l.isub(f)),s.iushrn(1),l.iushrn(1);e.cmp(r)>=0?(e.isub(r),i.isub(s),o.isub(l)):(r.isub(e),s.isub(i),l.isub(o))}return{a:s,b:l,gcd:r.iushln(c)}},a.prototype._invmp=function(t){n(0===t.negative),n(!t.isZero());var e=this,r=t.clone();e=0!==e.negative?e.umod(t):e.clone();for(var i,o=new a(1),s=new a(0),l=r.clone();e.cmpn(1)>0&&r.cmpn(1)>0;){for(var c=0,u=1;0==(e.words[0]&u)&&c<26;++c,u<<=1);if(c>0)for(e.iushrn(c);c-- >0;)o.isOdd()&&o.iadd(l),o.iushrn(1);for(var f=0,h=1;0==(r.words[0]&h)&&f<26;++f,h<<=1);if(f>0)for(r.iushrn(f);f-- >0;)s.isOdd()&&s.iadd(l),s.iushrn(1);e.cmp(r)>=0?(e.isub(r),o.isub(s)):(r.isub(e),s.isub(o))}return(i=0===e.cmpn(1)?o:s).cmpn(0)<0&&i.iadd(t),i},a.prototype.gcd=function(t){if(this.isZero())return t.abs();if(t.isZero())return this.abs();var e=this.clone(),r=t.clone();e.negative=0,r.negative=0;for(var n=0;e.isEven()&&r.isEven();n++)e.iushrn(1),r.iushrn(1);for(;;){for(;e.isEven();)e.iushrn(1);for(;r.isEven();)r.iushrn(1);var i=e.cmp(r);if(i<0){var a=e;e=r,r=a}else if(0===i||0===r.cmpn(1))break;e.isub(r)}return r.iushln(n)},a.prototype.invm=function(t){return this.egcd(t).a.umod(t)},a.prototype.isEven=function(){return 0==(1&this.words[0])},a.prototype.isOdd=function(){return 1==(1&this.words[0])},a.prototype.andln=function(t){return this.words[0]&t},a.prototype.bincn=function(t){n("number"==typeof t);var e=t%26,r=(t-e)/26,i=1<<e;if(this.length<=r)return this._expand(r+1),this.words[r]|=i,this;for(var a=i,o=r;0!==a&&o<this.length;o++){var s=0|this.words[o];a=(s+=a)>>>26,s&=67108863,this.words[o]=s}return 0!==a&&(this.words[o]=a,this.length++),this},a.prototype.isZero=function(){return 1===this.length&&0===this.words[0]},a.prototype.cmpn=function(t){var e,r=t<0;if(0!==this.negative&&!r)return-1;if(0===this.negative&&r)return 1;if(this.strip(),this.length>1)e=1;else{r&&(t=-t),n(t<=67108863,"Number is too big");var i=0|this.words[0];e=i===t?0:i<t?-1:1}return 0!==this.negative?0|-e:e},a.prototype.cmp=function(t){if(0!==this.negative&&0===t.negative)return-1;if(0===this.negative&&0!==t.negative)return 1;var e=this.ucmp(t);return 0!==this.negative?0|-e:e},a.prototype.ucmp=function(t){if(this.length>t.length)return 1;if(this.length<t.length)return-1;for(var e=0,r=this.length-1;r>=0;r--){var n=0|this.words[r],i=0|t.words[r];if(n!==i){n<i?e=-1:n>i&&(e=1);break}}return e},a.prototype.gtn=function(t){return 1===this.cmpn(t)},a.prototype.gt=function(t){return 1===this.cmp(t)},a.prototype.gten=function(t){return this.cmpn(t)>=0},a.prototype.gte=function(t){return this.cmp(t)>=0},a.prototype.ltn=function(t){return-1===this.cmpn(t)},a.prototype.lt=function(t){return-1===this.cmp(t)},a.prototype.lten=function(t){return this.cmpn(t)<=0},a.prototype.lte=function(t){return this.cmp(t)<=0},a.prototype.eqn=function(t){return 0===this.cmpn(t)},a.prototype.eq=function(t){return 0===this.cmp(t)},a.red=function(t){return new w(t)},a.prototype.toRed=function(t){return n(!this.red,"Already a number in reduction context"),n(0===this.negative,"red works only with positives"),t.convertTo(this)._forceRed(t)},a.prototype.fromRed=function(){return n(this.red,"fromRed works only with numbers in reduction context"),this.red.convertFrom(this)},a.prototype._forceRed=function(t){return this.red=t,this},a.prototype.forceRed=function(t){return n(!this.red,"Already a number in reduction context"),this._forceRed(t)},a.prototype.redAdd=function(t){return n(this.red,"redAdd works only with red numbers"),this.red.add(this,t)},a.prototype.redIAdd=function(t){return n(this.red,"redIAdd works only with red numbers"),this.red.iadd(this,t)},a.prototype.redSub=function(t){return n(this.red,"redSub works only with red numbers"),this.red.sub(this,t)},a.prototype.redISub=function(t){return n(this.red,"redISub works only with red numbers"),this.red.isub(this,t)},a.prototype.redShl=function(t){return n(this.red,"redShl works only with red numbers"),this.red.shl(this,t)},a.prototype.redMul=function(t){return n(this.red,"redMul works only with red numbers"),this.red._verify2(this,t),this.red.mul(this,t)},a.prototype.redIMul=function(t){return n(this.red,"redMul works only with red numbers"),this.red._verify2(this,t),this.red.imul(this,t)},a.prototype.redSqr=function(){return n(this.red,"redSqr works only with red numbers"),this.red._verify1(this),this.red.sqr(this)},a.prototype.redISqr=function(){return n(this.red,"redISqr works only with red numbers"),this.red._verify1(this),this.red.isqr(this)},a.prototype.redSqrt=function(){return n(this.red,"redSqrt works only with red numbers"),this.red._verify1(this),this.red.sqrt(this)},a.prototype.redInvm=function(){return n(this.red,"redInvm works only with red numbers"),this.red._verify1(this),this.red.invm(this)},a.prototype.redNeg=function(){return n(this.red,"redNeg works only with red numbers"),this.red._verify1(this),this.red.neg(this)},a.prototype.redPow=function(t){return n(this.red&&!t.red,"redPow(normalNum)"),this.red._verify1(this),this.red.pow(this,t)};var v={k256:null,p224:null,p192:null,p25519:null};function m(t,e){this.name=t,this.p=new a(e,16),this.n=this.p.bitLength(),this.k=new a(1).iushln(this.n).isub(this.p),this.tmp=this._tmp()}function y(){m.call(this,"k256","ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f")}function x(){m.call(this,"p224","ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001")}function b(){m.call(this,"p192","ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff")}function _(){m.call(this,"25519","7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed")}function w(t){if("string"==typeof t){var e=a._prime(t);this.m=e.p,this.prime=e}else n(t.gtn(1),"modulus must be greater than 1"),this.m=t,this.prime=null}function k(t){w.call(this,t),this.shift=this.m.bitLength(),this.shift%26!=0&&(this.shift+=26-this.shift%26),this.r=new a(1).iushln(this.shift),this.r2=this.imod(this.r.sqr()),this.rinv=this.r._invmp(this.m),this.minv=this.rinv.mul(this.r).isubn(1).div(this.m),this.minv=this.minv.umod(this.r),this.minv=this.r.sub(this.minv)}m.prototype._tmp=function(){var t=new a(null);return t.words=new Array(Math.ceil(this.n/13)),t},m.prototype.ireduce=function(t){var e,r=t;do{this.split(r,this.tmp),e=(r=(r=this.imulK(r)).iadd(this.tmp)).bitLength()}while(e>this.n);var n=e<this.n?-1:r.ucmp(this.p);return 0===n?(r.words[0]=0,r.length=1):n>0?r.isub(this.p):r.strip(),r},m.prototype.split=function(t,e){t.iushrn(this.n,0,e)},m.prototype.imulK=function(t){return t.imul(this.k)},i(y,m),y.prototype.split=function(t,e){for(var r=Math.min(t.length,9),n=0;n<r;n++)e.words[n]=t.words[n];if(e.length=r,t.length<=9)return t.words[0]=0,void(t.length=1);var i=t.words[9];for(e.words[e.length++]=4194303&i,n=10;n<t.length;n++){var a=0|t.words[n];t.words[n-10]=(4194303&a)<<4|i>>>22,i=a}i>>>=22,t.words[n-10]=i,0===i&&t.length>10?t.length-=10:t.length-=9},y.prototype.imulK=function(t){t.words[t.length]=0,t.words[t.length+1]=0,t.length+=2;for(var e=0,r=0;r<t.length;r++){var n=0|t.words[r];e+=977*n,t.words[r]=67108863&e,e=64*n+(e/67108864|0)}return 0===t.words[t.length-1]&&(t.length--,0===t.words[t.length-1]&&t.length--),t},i(x,m),i(b,m),i(_,m),_.prototype.imulK=function(t){for(var e=0,r=0;r<t.length;r++){var n=19*(0|t.words[r])+e,i=67108863&n;n>>>=26,t.words[r]=i,e=n}return 0!==e&&(t.words[t.length++]=e),t},a._prime=function(t){if(v[t])return v[t];var e;if("k256"===t)e=new y;else if("p224"===t)e=new x;else if("p192"===t)e=new b;else{if("p25519"!==t)throw new Error("Unknown prime "+t);e=new _}return v[t]=e,e},w.prototype._verify1=function(t){n(0===t.negative,"red works only with positives"),n(t.red,"red works only with red numbers")},w.prototype._verify2=function(t,e){n(0==(t.negative|e.negative),"red works only with positives"),n(t.red&&t.red===e.red,"red works only with red numbers")},w.prototype.imod=function(t){return this.prime?this.prime.ireduce(t)._forceRed(this):t.umod(this.m)._forceRed(this)},w.prototype.neg=function(t){return t.isZero()?t.clone():this.m.sub(t)._forceRed(this)},w.prototype.add=function(t,e){this._verify2(t,e);var r=t.add(e);return r.cmp(this.m)>=0&&r.isub(this.m),r._forceRed(this)},w.prototype.iadd=function(t,e){this._verify2(t,e);var r=t.iadd(e);return r.cmp(this.m)>=0&&r.isub(this.m),r},w.prototype.sub=function(t,e){this._verify2(t,e);var r=t.sub(e);return r.cmpn(0)<0&&r.iadd(this.m),r._forceRed(this)},w.prototype.isub=function(t,e){this._verify2(t,e);var r=t.isub(e);return r.cmpn(0)<0&&r.iadd(this.m),r},w.prototype.shl=function(t,e){return this._verify1(t),this.imod(t.ushln(e))},w.prototype.imul=function(t,e){return this._verify2(t,e),this.imod(t.imul(e))},w.prototype.mul=function(t,e){return this._verify2(t,e),this.imod(t.mul(e))},w.prototype.isqr=function(t){return this.imul(t,t.clone())},w.prototype.sqr=function(t){return this.mul(t,t)},w.prototype.sqrt=function(t){if(t.isZero())return t.clone();var e=this.m.andln(3);if(n(e%2==1),3===e){var r=this.m.add(new a(1)).iushrn(2);return this.pow(t,r)}for(var i=this.m.subn(1),o=0;!i.isZero()&&0===i.andln(1);)o++,i.iushrn(1);n(!i.isZero());var s=new a(1).toRed(this),l=s.redNeg(),c=this.m.subn(1).iushrn(1),u=this.m.bitLength();for(u=new a(2*u*u).toRed(this);0!==this.pow(u,c).cmp(l);)u.redIAdd(l);for(var f=this.pow(u,i),h=this.pow(t,i.addn(1).iushrn(1)),p=this.pow(t,i),d=o;0!==p.cmp(s);){for(var g=p,v=0;0!==g.cmp(s);v++)g=g.redSqr();n(v<d);var m=this.pow(f,new a(1).iushln(d-v-1));h=h.redMul(m),f=m.redSqr(),p=p.redMul(f),d=v}return h},w.prototype.invm=function(t){var e=t._invmp(this.m);return 0!==e.negative?(e.negative=0,this.imod(e).redNeg()):this.imod(e)},w.prototype.pow=function(t,e){if(e.isZero())return new a(1).toRed(this);if(0===e.cmpn(1))return t.clone();var r=new Array(16);r[0]=new a(1).toRed(this),r[1]=t;for(var n=2;n<r.length;n++)r[n]=this.mul(r[n-1],t);var i=r[0],o=0,s=0,l=e.bitLength()%26;for(0===l&&(l=26),n=e.length-1;n>=0;n--){for(var c=e.words[n],u=l-1;u>=0;u--){var 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e=this.root,r=[];;){if(r.push(e),e.left){if(t<e.left._count){e=e.left;continue}t-=e.left._count}if(!t)return new f(this,r);if(t-=1,!e.right)break;if(t>=e.right._count)break;e=e.right}return new f(this,[])},u.ge=function(t){for(var e=this._compare,r=this.root,n=[],i=0;r;){var a=e(t,r.key);n.push(r),a<=0&&(i=n.length),r=a<=0?r.left:r.right}return n.length=i,new f(this,n)},u.gt=function(t){for(var e=this._compare,r=this.root,n=[],i=0;r;){var a=e(t,r.key);n.push(r),a<0&&(i=n.length),r=a<0?r.left:r.right}return n.length=i,new f(this,n)},u.lt=function(t){for(var e=this._compare,r=this.root,n=[],i=0;r;){var a=e(t,r.key);n.push(r),a>0&&(i=n.length),r=a<=0?r.left:r.right}return n.length=i,new f(this,n)},u.le=function(t){for(var e=this._compare,r=this.root,n=[],i=0;r;){var a=e(t,r.key);n.push(r),a>=0&&(i=n.length),r=a<0?r.left:r.right}return n.length=i,new f(this,n)},u.find=function(t){for(var e=this._compare,r=this.root,n=[];r;){var i=e(t,r.key);if(n.push(r),0===i)return new 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c=(a=r.left=o(a)).right=o(a.right),r.left=c.right,a.right=c.left,c.right=r,c.left=a,c._color=r._color,r._color=i,a._color=i,e._color=i,l(r),l(a),l(c),u>1&&((f=t[u-2]).right===r?f.right=c:f.left=c),void(t[u-1]=c);if(a._color===i){if(r._color===n)return r._color=i,void(r.left=s(n,a));r.left=s(n,a);continue}var f;a=o(a),r.left=a.right,a.right=r,a._color=r._color,r._color=n,l(r),l(a),u>1&&((f=t[u-2]).right===r?f.right=a:f.left=a),t[u-1]=a,t[u]=r,u+1<t.length?t[u+1]=e:t.push(e),u+=2}}}(e),g.left===r?g.left=null:g.right=null,new c(this.tree._compare,e[0])},Object.defineProperty(h,"key",{get:function(){if(this._stack.length>0)return this._stack[this._stack.length-1].key},enumerable:!0}),Object.defineProperty(h,"value",{get:function(){if(this._stack.length>0)return this._stack[this._stack.length-1].value},enumerable:!0}),Object.defineProperty(h,"index",{get:function(){var t=0,e=this._stack;if(0===e.length){var r=this.tree.root;return 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f=u.prototype;function h(){this.primalOffset=[0,0,0],this.primalMinor=[0,0,0],this.mirrorOffset=[0,0,0],this.mirrorMinor=[0,0,0]}f.update=function(t){function e(e,r,n){if(n in t){var i,a=t[n],o=this[n];(e?Array.isArray(a)&&Array.isArray(a[0]):Array.isArray(a))?this[n]=i=[r(a[0]),r(a[1]),r(a[2])]:this[n]=i=[r(a),r(a),r(a)];for(var s=0;s<3;++s)if(i[s]!==o[s])return!0}return!1}t=t||{};var r,a=e.bind(this,!1,Number),o=e.bind(this,!1,Boolean),l=e.bind(this,!1,String),c=e.bind(this,!0,function(t){if(Array.isArray(t)){if(3===t.length)return[+t[0],+t[1],+t[2],1];if(4===t.length)return[+t[0],+t[1],+t[2],+t[3]]}return[0,0,0,1]}),u=!1,f=!1;if("bounds"in t)for(var h=t.bounds,p=0;p<2;++p)for(var d=0;d<3;++d)h[p][d]!==this.bounds[p][d]&&(f=!0),this.bounds[p][d]=h[p][d];if("ticks"in t){r=t.ticks,u=!0,this.autoTicks=!1;for(p=0;p<3;++p)this.tickSpacing[p]=0}else a("tickSpacing")&&(this.autoTicks=!0,f=!0);if(this._firstInit&&("ticks"in t||"tickSpacing"in t||(this.autoTicks=!0),f=!0,u=!0,this._firstInit=!1),f&&this.autoTicks&&(r=s.create(this.bounds,this.tickSpacing),u=!0),u){for(p=0;p<3;++p)r[p].sort(function(t,e){return t.x-e.x});s.equal(r,this.ticks)?u=!1:this.ticks=r}o("tickEnable"),l("tickFont")&&(u=!0),a("tickSize"),a("tickAngle"),a("tickPad"),c("tickColor");var g=l("labels");l("labelFont")&&(g=!0),o("labelEnable"),a("labelSize"),a("labelPad"),c("labelColor"),o("lineEnable"),o("lineMirror"),a("lineWidth"),c("lineColor"),o("lineTickEnable"),o("lineTickMirror"),a("lineTickLength"),a("lineTickWidth"),c("lineTickColor"),o("gridEnable"),a("gridWidth"),c("gridColor"),o("zeroEnable"),c("zeroLineColor"),a("zeroLineWidth"),o("backgroundEnable"),c("backgroundColor"),this._text?this._text&&(g||u)&&this._text.update(this.bounds,this.labels,this.labelFont,this.ticks,this.tickFont):this._text=n(this.gl,this.bounds,this.labels,this.labelFont,this.ticks,this.tickFont),this._lines&&u&&(this._lines.dispose(),this._lines=null),this._lines||(this._lines=i(this.gl,this.bounds,this.ticks))};var p=[new h,new h,new h];function d(t,e,r,n,i){for(var a=t.primalOffset,o=t.primalMinor,s=t.mirrorOffset,l=t.mirrorMinor,c=n[e],u=0;u<3;++u)if(e!==u){var f=a,h=s,p=o,d=l;c&1<<u&&(f=s,h=a,p=l,d=o),f[u]=r[0][u],h[u]=r[1][u],i[u]>0?(p[u]=-1,d[u]=0):(p[u]=0,d[u]=1)}}var g=[0,0,0],v={model:l,view:l,projection:l,_ortho:!1};f.isOpaque=function(){return!0},f.isTransparent=function(){return!1},f.drawTransparent=function(t){};var m=[0,0,0],y=[0,0,0],x=[0,0,0];f.draw=function(t){t=t||v;for(var e=this.gl,r=t.model||l,n=t.view||l,i=t.projection||l,a=this.bounds,s=t._ortho||!1,u=o(r,n,i,a,s),f=u.cubeEdges,h=u.axis,b=n[12],_=n[13],w=n[14],k=n[15],T=(s?2:1)*this.pixelRatio*(i[3]*b+i[7]*_+i[11]*w+i[15]*k)/e.drawingBufferHeight,A=0;A<3;++A)this.lastCubeProps.cubeEdges[A]=f[A],this.lastCubeProps.axis[A]=h[A];var M=p;for(A=0;A<3;++A)d(p[A],A,this.bounds,f,h);e=this.gl;var S,E=g;for(A=0;A<3;++A)this.backgroundEnable[A]?E[A]=h[A]:E[A]=0;this._background.draw(r,n,i,a,E,this.backgroundColor),this._lines.bind(r,n,i,this);for(A=0;A<3;++A){var C=[0,0,0];h[A]>0?C[A]=a[1][A]:C[A]=a[0][A];for(var L=0;L<2;++L){var z=(A+1+L)%3,O=(A+1+(1^L))%3;this.gridEnable[z]&&this._lines.drawGrid(z,O,this.bounds,C,this.gridColor[z],this.gridWidth[z]*this.pixelRatio)}for(L=0;L<2;++L){z=(A+1+L)%3,O=(A+1+(1^L))%3;this.zeroEnable[O]&&Math.min(a[0][O],a[1][O])<=0&&Math.max(a[0][O],a[1][O])>=0&&this._lines.drawZero(z,O,this.bounds,C,this.zeroLineColor[O],this.zeroLineWidth[O]*this.pixelRatio)}}for(A=0;A<3;++A){this.lineEnable[A]&&this._lines.drawAxisLine(A,this.bounds,M[A].primalOffset,this.lineColor[A],this.lineWidth[A]*this.pixelRatio),this.lineMirror[A]&&this._lines.drawAxisLine(A,this.bounds,M[A].mirrorOffset,this.lineColor[A],this.lineWidth[A]*this.pixelRatio);var I=c(m,M[A].primalMinor),D=c(y,M[A].mirrorMinor),P=this.lineTickLength;for(L=0;L<3;++L){var R=T/r[5*L];I[L]*=P[L]*R,D[L]*=P[L]*R}this.lineTickEnable[A]&&this._lines.drawAxisTicks(A,M[A].primalOffset,I,this.lineTickColor[A],this.lineTickWidth[A]*this.pixelRatio),this.lineTickMirror[A]&&this._lines.drawAxisTicks(A,M[A].mirrorOffset,D,this.lineTickColor[A],this.lineTickWidth[A]*this.pixelRatio)}this._lines.unbind(),this._text.bind(r,n,i,this.pixelRatio);var F,B;function N(t){(B=[0,0,0])[t]=1}function j(t,e,r){var n=(t+1)%3,i=(t+2)%3,a=e[n],o=e[i],s=r[n],l=r[i];a>0&&l>0?N(n):a>0&&l<0?N(n):a<0&&l>0?N(n):a<0&&l<0?N(n):o>0&&s>0?N(i):o>0&&s<0?N(i):o<0&&s>0?N(i):o<0&&s<0&&N(i)}for(A=0;A<3;++A){var V=M[A].primalMinor,U=M[A].mirrorMinor,H=c(x,M[A].primalOffset);for(L=0;L<3;++L)this.lineTickEnable[A]&&(H[L]+=T*V[L]*Math.max(this.lineTickLength[L],0)/r[5*L]);var q=[0,0,0];if(q[A]=1,this.tickEnable[A]){-3600===this.tickAngle[A]?(this.tickAngle[A]=0,this.tickAlign[A]="auto"):this.tickAlign[A]=-1,F=1,"auto"===(S=[this.tickAlign[A],.5,F])[0]?S[0]=0:S[0]=parseInt(""+S[0]),B=[0,0,0],j(A,V,U);for(L=0;L<3;++L)H[L]+=T*V[L]*this.tickPad[L]/r[5*L];this._text.drawTicks(A,this.tickSize[A],this.tickAngle[A],H,this.tickColor[A],q,B,S)}if(this.labelEnable[A]){F=0,B=[0,0,0],this.labels[A].length>4&&(N(A),F=1),"auto"===(S=[this.labelAlign[A],.5,F])[0]?S[0]=0:S[0]=parseInt(""+S[0]);for(L=0;L<3;++L)H[L]+=T*V[L]*this.labelPad[L]/r[5*L];H[A]+=.5*(a[0][A]+a[1][A]),this._text.drawLabel(A,this.labelSize[A],this.labelAngle[A],H,this.labelColor[A],[0,0,0],B,S)}}this._text.unbind()},f.dispose=function(){this._text.dispose(),this._lines.dispose(),this._background.dispose(),this._lines=null,this._text=null,this._background=null,this.gl=null}},{"./lib/background.js":233,"./lib/cube.js":234,"./lib/lines.js":235,"./lib/text.js":237,"./lib/ticks.js":238}],233:[function(t,e,r){"use strict";e.exports=function(t){for(var e=[],r=[],s=0,l=0;l<3;++l)for(var c=(l+1)%3,u=(l+2)%3,f=[0,0,0],h=[0,0,0],p=-1;p<=1;p+=2){r.push(s,s+2,s+1,s+1,s+2,s+3),f[l]=p,h[l]=p;for(var d=-1;d<=1;d+=2){f[c]=d;for(var g=-1;g<=1;g+=2)f[u]=g,e.push(f[0],f[1],f[2],h[0],h[1],h[2]),s+=1}var v=c;c=u,u=v}var m=n(t,new Float32Array(e)),y=n(t,new Uint16Array(r),t.ELEMENT_ARRAY_BUFFER),x=i(t,[{buffer:m,type:t.FLOAT,size:3,offset:0,stride:24},{buffer:m,type:t.FLOAT,size:3,offset:12,stride:24}],y),b=a(t);return b.attributes.position.location=0,b.attributes.normal.location=1,new o(t,m,x,b)};var n=t("gl-buffer"),i=t("gl-vao"),a=t("./shaders").bg;function o(t,e,r,n){this.gl=t,this.buffer=e,this.vao=r,this.shader=n}var s=o.prototype;s.draw=function(t,e,r,n,i,a){for(var o=!1,s=0;s<3;++s)o=o||i[s];if(o){var l=this.gl;l.enable(l.POLYGON_OFFSET_FILL),l.polygonOffset(1,2),this.shader.bind(),this.shader.uniforms={model:t,view:e,projection:r,bounds:n,enable:i,colors:a},this.vao.bind(),this.vao.draw(this.gl.TRIANGLES,36),this.vao.unbind(),l.disable(l.POLYGON_OFFSET_FILL)}},s.dispose=function(){this.vao.dispose(),this.buffer.dispose(),this.shader.dispose()}},{"./shaders":236,"gl-buffer":240,"gl-vao":322}],234:[function(t,e,r){"use strict";e.exports=function(t,e,r,a,p){i(s,e,t),i(s,r,s);for(var y=0,x=0;x<2;++x){u[2]=a[x][2];for(var b=0;b<2;++b){u[1]=a[b][1];for(var _=0;_<2;++_)u[0]=a[_][0],h(l[y],u,s),y+=1}}for(var w=-1,x=0;x<8;++x){for(var k=l[x][3],T=0;T<3;++T)c[x][T]=l[x][T]/k;p&&(c[x][2]*=-1),k<0&&(w<0?w=x:c[x][2]<c[w][2]&&(w=x))}if(w<0){w=0;for(var A=0;A<3;++A){for(var M=(A+2)%3,S=(A+1)%3,E=-1,C=-1,L=0;L<2;++L){var z=L<<A,O=z+(L<<M)+(1-L<<S),I=z+(1-L<<M)+(L<<S);o(c[z],c[O],c[I],f)<0||(L?E=1:C=1)}if(E<0||C<0)C>E&&(w|=1<<A);else{for(var L=0;L<2;++L){var z=L<<A,O=z+(L<<M)+(1-L<<S),I=z+(1-L<<M)+(L<<S),D=d([l[z],l[O],l[I],l[z+(1<<M)+(1<<S)]]);L?E=D:C=D}C>E&&(w|=1<<A)}}}for(var P=7^w,R=-1,x=0;x<8;++x)x!==w&&x!==P&&(R<0?R=x:c[R][1]>c[x][1]&&(R=x));for(var F=-1,x=0;x<3;++x){var B=R^1<<x;if(B!==w&&B!==P){F<0&&(F=B);var S=c[B];S[0]<c[F][0]&&(F=B)}}for(var N=-1,x=0;x<3;++x){var B=R^1<<x;if(B!==w&&B!==P&&B!==F){N<0&&(N=B);var S=c[B];S[0]>c[N][0]&&(N=B)}}var j=g;j[0]=j[1]=j[2]=0,j[n.log2(F^R)]=R&F,j[n.log2(R^N)]=R&N;var V=7^N;V===w||V===P?(V=7^F,j[n.log2(N^V)]=V&N):j[n.log2(F^V)]=V&F;for(var U=v,H=w,A=0;A<3;++A)U[A]=H&1<<A?-1:1;return m};var n=t("bit-twiddle"),i=t("gl-mat4/multiply"),a=t("split-polygon"),o=t("robust-orientation"),s=new Array(16),l=new Array(8),c=new Array(8),u=new Array(3),f=[0,0,0];function h(t,e,r){for(var n=0;n<4;++n){t[n]=r[12+n];for(var i=0;i<3;++i)t[n]+=e[i]*r[4*i+n]}}!function(){for(var t=0;t<8;++t)l[t]=[1,1,1,1],c[t]=[1,1,1]}();var p=[[0,0,1,0,0],[0,0,-1,1,0],[0,-1,0,1,0],[0,1,0,1,0],[-1,0,0,1,0],[1,0,0,1,0]];function d(t){for(var e=0;e<p.length;++e)if((t=a.positive(t,p[e])).length<3)return 0;var r=t[0],n=r[0]/r[3],i=r[1]/r[3],o=0;for(e=1;e+1<t.length;++e){var s=t[e],l=t[e+1],c=s[0]/s[3]-n,u=s[1]/s[3]-i,f=l[0]/l[3]-n,h=l[1]/l[3]-i;o+=Math.abs(c*h-u*f)}return o}var g=[1,1,1],v=[0,0,0],m={cubeEdges:g,axis:v}},{"bit-twiddle":85,"gl-mat4/multiply":266,"robust-orientation":497,"split-polygon":514}],235:[function(t,e,r){"use strict";e.exports=function(t,e,r){var o=[],s=[0,0,0],l=[0,0,0],c=[0,0,0],u=[0,0,0];o.push(0,0,1,0,1,1,0,0,-1,0,0,-1,0,1,1,0,1,-1);for(var f=0;f<3;++f){for(var h=o.length/3|0,d=0;d<r[f].length;++d){var g=+r[f][d].x;o.push(g,0,1,g,1,1,g,0,-1,g,0,-1,g,1,1,g,1,-1)}var v=o.length/3|0;s[f]=h,l[f]=v-h;for(var h=o.length/3|0,m=0;m<r[f].length;++m){var g=+r[f][m].x;o.push(g,0,1,g,1,1,g,0,-1,g,0,-1,g,1,1,g,1,-1)}var v=o.length/3|0;c[f]=h,u[f]=v-h}var y=n(t,new Float32Array(o)),x=i(t,[{buffer:y,type:t.FLOAT,size:3,stride:0,offset:0}]),b=a(t);return b.attributes.position.location=0,new p(t,y,x,b,l,s,u,c)};var n=t("gl-buffer"),i=t("gl-vao"),a=t("./shaders").line,o=[0,0,0],s=[0,0,0],l=[0,0,0],c=[0,0,0],u=[1,1];function f(t){return t[0]=t[1]=t[2]=0,t}function h(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t}function p(t,e,r,n,i,a,o,s){this.gl=t,this.vertBuffer=e,this.vao=r,this.shader=n,this.tickCount=i,this.tickOffset=a,this.gridCount=o,this.gridOffset=s}var d=p.prototype;d.bind=function(t,e,r){this.shader.bind(),this.shader.uniforms.model=t,this.shader.uniforms.view=e,this.shader.uniforms.projection=r,u[0]=this.gl.drawingBufferWidth,u[1]=this.gl.drawingBufferHeight,this.shader.uniforms.screenShape=u,this.vao.bind()},d.unbind=function(){this.vao.unbind()},d.drawAxisLine=function(t,e,r,n,i){var a=f(s);this.shader.uniforms.majorAxis=s,a[t]=e[1][t]-e[0][t],this.shader.uniforms.minorAxis=a;var o,u=h(c,r);u[t]+=e[0][t],this.shader.uniforms.offset=u,this.shader.uniforms.lineWidth=i,this.shader.uniforms.color=n,(o=f(l))[(t+2)%3]=1,this.shader.uniforms.screenAxis=o,this.vao.draw(this.gl.TRIANGLES,6),(o=f(l))[(t+1)%3]=1,this.shader.uniforms.screenAxis=o,this.vao.draw(this.gl.TRIANGLES,6)},d.drawAxisTicks=function(t,e,r,n,i){if(this.tickCount[t]){var a=f(o);a[t]=1,this.shader.uniforms.majorAxis=a,this.shader.uniforms.offset=e,this.shader.uniforms.minorAxis=r,this.shader.uniforms.color=n,this.shader.uniforms.lineWidth=i;var s=f(l);s[t]=1,this.shader.uniforms.screenAxis=s,this.vao.draw(this.gl.TRIANGLES,this.tickCount[t],this.tickOffset[t])}},d.drawGrid=function(t,e,r,n,i,a){if(this.gridCount[t]){var u=f(s);u[e]=r[1][e]-r[0][e],this.shader.uniforms.minorAxis=u;var p=h(c,n);p[e]+=r[0][e],this.shader.uniforms.offset=p;var d=f(o);d[t]=1,this.shader.uniforms.majorAxis=d;var g=f(l);g[t]=1,this.shader.uniforms.screenAxis=g,this.shader.uniforms.lineWidth=a,this.shader.uniforms.color=i,this.vao.draw(this.gl.TRIANGLES,this.gridCount[t],this.gridOffset[t])}},d.drawZero=function(t,e,r,n,i,a){var o=f(s);this.shader.uniforms.majorAxis=o,o[t]=r[1][t]-r[0][t],this.shader.uniforms.minorAxis=o;var u=h(c,n);u[t]+=r[0][t],this.shader.uniforms.offset=u;var p=f(l);p[e]=1,this.shader.uniforms.screenAxis=p,this.shader.uniforms.lineWidth=a,this.shader.uniforms.color=i,this.vao.draw(this.gl.TRIANGLES,6)},d.dispose=function(){this.vao.dispose(),this.vertBuffer.dispose(),this.shader.dispose()}},{"./shaders":236,"gl-buffer":240,"gl-vao":322}],236:[function(t,e,r){"use strict";var n=t("glslify"),i=t("gl-shader"),a=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\n\nuniform mat4 model, view, projection;\nuniform vec3 offset, majorAxis, minorAxis, screenAxis;\nuniform float lineWidth;\nuniform vec2 screenShape;\n\nvec3 project(vec3 p) {\n  vec4 pp = projection * view * model * vec4(p, 1.0);\n  return pp.xyz / max(pp.w, 0.0001);\n}\n\nvoid main() {\n  vec3 major = position.x * majorAxis;\n  vec3 minor = position.y * minorAxis;\n\n  vec3 vPosition = major + minor + offset;\n  vec3 pPosition = project(vPosition);\n  vec3 offset = project(vPosition + screenAxis * position.z);\n\n  vec2 screen = normalize((offset - pPosition).xy * screenShape) / screenShape;\n\n  gl_Position = vec4(pPosition + vec3(0.5 * screen * lineWidth, 0), 1.0);\n}\n"]),o=n(["precision highp float;\n#define GLSLIFY 1\n\nuniform vec4 color;\nvoid main() {\n  gl_FragColor = color;\n}"]);r.line=function(t){return i(t,a,o,null,[{name:"position",type:"vec3"}])};var s=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\n\nuniform mat4 model, view, projection;\nuniform vec3 offset, axis, alignDir, alignOpt;\nuniform float scale, angle, pixelScale;\nuniform vec2 resolution;\n\nvec3 project(vec3 p) {\n  vec4 pp = projection * view * model * vec4(p, 1.0);\n  return pp.xyz / max(pp.w, 0.0001);\n}\n\nfloat computeViewAngle(vec3 a, vec3 b) {\n  vec3 A = project(a);\n  vec3 B = project(b);\n\n  return atan(\n    (B.y - A.y) * resolution.y,\n    (B.x - A.x) * resolution.x\n  );\n}\n\nconst float PI = 3.141592;\nconst float TWO_PI = 2.0 * PI;\nconst float HALF_PI = 0.5 * PI;\nconst float ONE_AND_HALF_PI = 1.5 * PI;\n\nint option = int(floor(alignOpt.x + 0.001));\nfloat hv_ratio =       alignOpt.y;\nbool enableAlign =    (alignOpt.z != 0.0);\n\nfloat mod_angle(float a) {\n  return mod(a, PI);\n}\n\nfloat positive_angle(float a) {\n  return mod_angle((a < 0.0) ?\n    a + TWO_PI :\n    a\n  );\n}\n\nfloat look_upwards(float a) {\n  float b = positive_angle(a);\n  return ((b > HALF_PI) && (b <= ONE_AND_HALF_PI)) ?\n    b - PI :\n    b;\n}\n\nfloat look_horizontal_or_vertical(float a, float ratio) {\n  // ratio controls the ratio between being horizontal to (vertical + horizontal)\n  // if ratio is set to 0.5 then it is 50%, 50%.\n  // when using a higher ratio e.g. 0.75 the result would\n  // likely be more horizontal than vertical.\n\n  float b = positive_angle(a);\n\n  return\n    (b < (      ratio) * HALF_PI) ? 0.0 :\n    (b < (2.0 - ratio) * HALF_PI) ? -HALF_PI :\n    (b < (2.0 + ratio) * HALF_PI) ? 0.0 :\n    (b < (4.0 - ratio) * HALF_PI) ? HALF_PI :\n                                    0.0;\n}\n\nfloat roundTo(float a, float b) {\n  return float(b * floor((a + 0.5 * b) / b));\n}\n\nfloat look_round_n_directions(float a, int n) {\n  float b = positive_angle(a);\n  float div = TWO_PI / float(n);\n  float c = roundTo(b, div);\n  return look_upwards(c);\n}\n\nfloat applyAlignOption(float rawAngle, float delta) {\n  return\n    (option >  2) ? look_round_n_directions(rawAngle + delta, option) :       // option 3-n: round to n directions\n    (option == 2) ? look_horizontal_or_vertical(rawAngle + delta, hv_ratio) : // horizontal or vertical\n    (option == 1) ? rawAngle + delta :       // use free angle, and flip to align with one direction of the axis\n    (option == 0) ? look_upwards(rawAngle) : // use free angle, and stay upwards\n    (option ==-1) ? 0.0 :                    // useful for backward compatibility, all texts remains horizontal\n                    rawAngle;                // otherwise return back raw input angle\n}\n\nbool isAxisTitle = (axis.x == 0.0) &&\n                   (axis.y == 0.0) &&\n                   (axis.z == 0.0);\n\nvoid main() {\n  //Compute world offset\n  float axisDistance = position.z;\n  vec3 dataPosition = axisDistance * axis + offset;\n\n  float beta = angle; // i.e. user defined attributes for each tick\n\n  float axisAngle;\n  float clipAngle;\n  float flip;\n\n  if (enableAlign) {\n    axisAngle = (isAxisTitle) ? HALF_PI :\n                      computeViewAngle(dataPosition, dataPosition + axis);\n    clipAngle = computeViewAngle(dataPosition, dataPosition + alignDir);\n\n    axisAngle += (sin(axisAngle) < 0.0) ? PI : 0.0;\n    clipAngle += (sin(clipAngle) < 0.0) ? PI : 0.0;\n\n    flip = (dot(vec2(cos(axisAngle), sin(axisAngle)),\n                vec2(sin(clipAngle),-cos(clipAngle))) > 0.0) ? 1.0 : 0.0;\n\n    beta += applyAlignOption(clipAngle, flip * PI);\n  }\n\n  //Compute plane offset\n  vec2 planeCoord = position.xy * pixelScale;\n\n  mat2 planeXform = scale * mat2(\n     cos(beta), sin(beta),\n    -sin(beta), cos(beta)\n  );\n\n  vec2 viewOffset = 2.0 * planeXform * planeCoord / resolution;\n\n  //Compute clip position\n  vec3 clipPosition = project(dataPosition);\n\n  //Apply text offset in clip coordinates\n  clipPosition += vec3(viewOffset, 0.0);\n\n  //Done\n  gl_Position = vec4(clipPosition, 1.0);\n}"]),l=n(["precision highp float;\n#define GLSLIFY 1\n\nuniform vec4 color;\nvoid main() {\n  gl_FragColor = color;\n}"]);r.text=function(t){return i(t,s,l,null,[{name:"position",type:"vec3"}])};var c=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\nattribute vec3 normal;\n\nuniform mat4 model, view, projection;\nuniform vec3 enable;\nuniform vec3 bounds[2];\n\nvarying vec3 colorChannel;\n\nvoid main() {\n\n  vec3 signAxis = sign(bounds[1] - bounds[0]);\n\n  vec3 realNormal = signAxis * normal;\n\n  if(dot(realNormal, enable) > 0.0) {\n    vec3 minRange = min(bounds[0], bounds[1]);\n    vec3 maxRange = max(bounds[0], bounds[1]);\n    vec3 nPosition = mix(minRange, maxRange, 0.5 * (position + 1.0));\n    gl_Position = projection * view * model * vec4(nPosition, 1.0);\n  } else {\n    gl_Position = vec4(0,0,0,0);\n  }\n\n  colorChannel = abs(realNormal);\n}"]),u=n(["precision highp float;\n#define GLSLIFY 1\n\nuniform vec4 colors[3];\n\nvarying vec3 colorChannel;\n\nvoid main() {\n  gl_FragColor = colorChannel.x * colors[0] +\n                 colorChannel.y * colors[1] +\n                 colorChannel.z * colors[2];\n}"]);r.bg=function(t){return 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g=0;g<n[d].length;++g)n[d][g].text&&s(n[d][g].x,n[d][g].text,n[d][g].font||i,n[d][g].fontSize||12,1.25,p);u[d]=(o.length/3|0)-c[d]}this.buffer.update(o),this.tickOffset=c,this.tickCount=u,this.labelOffset=f,this.labelCount=h},u.drawTicks=function(t,e,r,n,i,a,o,s){this.tickCount[t]&&(this.shader.uniforms.axis=a,this.shader.uniforms.color=i,this.shader.uniforms.angle=r,this.shader.uniforms.scale=e,this.shader.uniforms.offset=n,this.shader.uniforms.alignDir=o,this.shader.uniforms.alignOpt=s,this.vao.draw(this.gl.TRIANGLES,this.tickCount[t],this.tickOffset[t]))},u.drawLabel=function(t,e,r,n,i,a,o,s){this.labelCount[t]&&(this.shader.uniforms.axis=a,this.shader.uniforms.color=i,this.shader.uniforms.angle=r,this.shader.uniforms.scale=e,this.shader.uniforms.offset=n,this.shader.uniforms.alignDir=o,this.shader.uniforms.alignOpt=s,this.vao.draw(this.gl.TRIANGLES,this.labelCount[t],this.labelOffset[t]))},u.dispose=function(){this.shader.dispose(),this.vao.dispose(),this.buffer.dispose()}}).call(this,t("_process"))},{"./shaders":236,_process:477,"gl-buffer":240,"gl-vao":322,"vectorize-text":537}],238:[function(t,e,r){"use 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h=e.model||c,p=e.view||c,m=e.projection||c,y=e._ortho||!1,x=t.bounds,b=(f=f||a(h,p,m,x,y)).axis;o(u,p,h),o(u,m,u);for(var _=g,w=0;w<3;++w)_[w].lo=1/0,_[w].hi=-1/0,_[w].pixelsPerDataUnit=1/0;var k=n(s(u,u));s(u,u);for(var T=0;T<3;++T){var A=(T+1)%3,M=(T+2)%3,S=v;t:for(var w=0;w<2;++w){var E=[];if(b[T]<0!=!!w){S[T]=x[w][T];for(var C=0;C<2;++C){S[A]=x[C^w][A];for(var L=0;L<2;++L)S[M]=x[L^C^w][M],E.push(S.slice())}for(var z=y?5:4,C=z;C===z;++C){if(0===E.length)continue t;E=i.positive(E,k[C])}for(var C=0;C<E.length;++C)for(var M=E[C],O=d(v,u,M,r,l),L=0;L<3;++L)_[L].lo=Math.min(_[L].lo,M[L]),_[L].hi=Math.max(_[L].hi,M[L]),L!==T&&(_[L].pixelsPerDataUnit=Math.min(_[L].pixelsPerDataUnit,Math.abs(O[L])))}}}return _};var n=t("extract-frustum-planes"),i=t("split-polygon"),a=t("./lib/cube.js"),o=t("gl-mat4/multiply"),s=t("gl-mat4/transpose"),l=t("gl-vec4/transformMat4"),c=new Float32Array([1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]),u=new Float32Array(16);function f(t,e,r){this.lo=t,this.hi=e,this.pixelsPerDataUnit=r}var h=[0,0,0,1],p=[0,0,0,1];function d(t,e,r,n,i){for(var a=0;a<3;++a){for(var o=h,s=p,c=0;c<3;++c)s[c]=o[c]=r[c];s[3]=o[3]=1,s[a]+=1,l(s,s,e),s[3]<0&&(t[a]=1/0),o[a]-=1,l(o,o,e),o[3]<0&&(t[a]=1/0);var u=(o[0]/o[3]-s[0]/s[3])*n,f=(o[1]/o[3]-s[1]/s[3])*i;t[a]=.25*Math.sqrt(u*u+f*f)}return t}var g=[new f(1/0,-1/0,1/0),new f(1/0,-1/0,1/0),new f(1/0,-1/0,1/0)],v=[0,0,0]},{"./lib/cube.js":234,"extract-frustum-planes":223,"gl-mat4/multiply":266,"gl-mat4/transpose":275,"gl-vec4/transformMat4":393,"split-polygon":514}],240:[function(t,e,r){"use strict";var n=t("typedarray-pool"),i=t("ndarray-ops"),a=t("ndarray"),o=["uint8","uint8_clamped","uint16","uint32","int8","int16","int32","float32"];function s(t,e,r,n,i){this.gl=t,this.type=e,this.handle=r,this.length=n,this.usage=i}var l=s.prototype;function c(t,e,r,n,i,a){var o=i.length*i.BYTES_PER_ELEMENT;if(a<0)return t.bufferData(e,i,n),o;if(o+a>r)throw new Error("gl-buffer: If resizing buffer, 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s=n.malloc(t.size,r),l=a(s,t.shape);i.assign(l,t),this.length=c(this.gl,this.type,this.length,this.usage,e<0?s:s.subarray(0,t.size),e),n.free(s)}}else if(Array.isArray(t)){var f;f=this.type===this.gl.ELEMENT_ARRAY_BUFFER?u(t,"uint16"):u(t,"float32"),this.length=c(this.gl,this.type,this.length,this.usage,e<0?f:f.subarray(0,t.length),e),n.free(f)}else if("object"==typeof t&&"number"==typeof t.length)this.length=c(this.gl,this.type,this.length,this.usage,t,e);else{if("number"!=typeof t&&void 0!==t)throw new Error("gl-buffer: Invalid data type");if(e>=0)throw new Error("gl-buffer: Cannot specify offset when resizing buffer");(t|=0)<=0&&(t=1),this.gl.bufferData(this.type,0|t,this.usage),this.length=t}},e.exports=function(t,e,r,n){if(r=r||t.ARRAY_BUFFER,n=n||t.DYNAMIC_DRAW,r!==t.ARRAY_BUFFER&&r!==t.ELEMENT_ARRAY_BUFFER)throw new Error("gl-buffer: Invalid type for webgl buffer, must be either gl.ARRAY_BUFFER or gl.ELEMENT_ARRAY_BUFFER");if(n!==t.DYNAMIC_DRAW&&n!==t.STATIC_DRAW&&n!==t.STREAM_DRAW)throw new Error("gl-buffer: Invalid usage for buffer, must be either gl.DYNAMIC_DRAW, gl.STATIC_DRAW or gl.STREAM_DRAW");var i=t.createBuffer(),a=new s(t,r,i,0,n);return a.update(e),a}},{ndarray:445,"ndarray-ops":439,"typedarray-pool":532}],241:[function(t,e,r){"use strict";var n=t("gl-vec3"),i=function(t,e){for(var r=0;r<t.length;r++)if(t[r]>=e)return r-1;return r},a=n.create(),o=n.create(),s=function(t,e,r){return t<e?e:t>r?r:t},l=function(t,e,r,l){var c=t[0],u=t[1],f=t[2],h=r[0].length,p=r[1].length,d=r[2].length,g=i(r[0],c),v=i(r[1],u),m=i(r[2],f),y=g+1,x=v+1,b=m+1;if(l&&(g=s(g,0,h-1),y=s(y,0,h-1),v=s(v,0,p-1),x=s(x,0,p-1),m=s(m,0,d-1),b=s(b,0,d-1)),g<0||v<0||m<0||y>=h||x>=p||b>=d)return n.create();var _=(c-r[0][g])/(r[0][y]-r[0][g]),w=(u-r[1][v])/(r[1][x]-r[1][v]),k=(f-r[2][m])/(r[2][b]-r[2][m]);(_<0||_>1||isNaN(_))&&(_=0),(w<0||w>1||isNaN(w))&&(w=0),(k<0||k>1||isNaN(k))&&(k=0);var T=m*h*p,A=b*h*p,M=v*h,S=x*h,E=g,C=y,L=e[M+T+E],z=e[M+T+C],O=e[S+T+E],I=e[S+T+C],D=e[M+A+E],P=e[M+A+C],R=e[S+A+E],F=e[S+A+C],B=n.create();return n.lerp(B,L,z,_),n.lerp(a,O,I,_),n.lerp(B,B,a,w),n.lerp(a,D,P,_),n.lerp(o,R,F,_),n.lerp(a,a,o,w),n.lerp(B,B,a,k),B};e.exports=function(t,e){var r;r=t.positions?t.positions:function(t){for(var e=t[0],r=t[1],n=t[2],i=[],a=0;a<n.length;a++)for(var o=0;o<r.length;o++)for(var s=0;s<e.length;s++)i.push([n[a],r[o],e[s]]);return i}(t.meshgrid);var i=t.meshgrid,a=t.vectors,o={positions:[],vertexIntensity:[],vertexIntensityBounds:t.vertexIntensityBounds,vertexNormals:[],vectors:[],cells:[],coneOffset:t.coneOffset,colormap:t.colormap};if(0===t.positions.length)return e&&(e[0]=[0,0,0],e[1]=[0,0,0]),o;for(var s=0,c=1/0,u=-1/0,f=1/0,h=-1/0,p=1/0,d=-1/0,g=null,v=null,m=[],y=1/0,x=0;x<r.length;x++){var b,_=r[x];c=Math.min(_[0],c),u=Math.max(_[0],u),f=Math.min(_[1],f),h=Math.max(_[1],h),p=Math.min(_[2],p),d=Math.max(_[2],d),b=i?l(_,a,i,!0):a[x],n.length(b)>s&&(s=n.length(b)),x&&(y=Math.min(y,2*n.distance(g,_)/(n.length(v)+n.length(b)))),g=_,v=b,m.push(b)}var w=[c,f,p],k=[u,h,d];e&&(e[0]=w,e[1]=k),0===s&&(s=1);var T=1/s;isFinite(y)&&!isNaN(y)||(y=1),o.vectorScale=y;var A=function(t,e,r){var i=n.create();return void 0!==t&&n.set(i,t,e,r),i}(0,1,0),M=t.coneSize||.5;t.absoluteConeSize&&(M=t.absoluteConeSize*T),o.coneScale=M;x=0;for(var S=0;x<r.length;x++)for(var E=(_=r[x])[0],C=_[1],L=_[2],z=m[x],O=n.length(z)*T,I=0;I<8;I++){o.positions.push([E,C,L,S++]),o.positions.push([E,C,L,S++]),o.positions.push([E,C,L,S++]),o.positions.push([E,C,L,S++]),o.positions.push([E,C,L,S++]),o.positions.push([E,C,L,S++]),o.vectors.push(z),o.vectors.push(z),o.vectors.push(z),o.vectors.push(z),o.vectors.push(z),o.vectors.push(z),o.vertexIntensity.push(O,O,O),o.vertexIntensity.push(O,O,O),o.vertexNormals.push(A,A,A),o.vertexNormals.push(A,A,A);var D=o.positions.length;o.cells.push([D-6,D-5,D-4],[D-3,D-2,D-1])}return o},e.exports.createConeMesh=t("./lib/conemesh")},{"./lib/conemesh":242,"gl-vec3":341}],242:[function(t,e,r){"use strict";var n=t("gl-shader"),i=t("gl-buffer"),a=t("gl-vao"),o=t("gl-texture2d"),s=t("normals"),l=t("gl-mat4/multiply"),c=t("gl-mat4/invert"),u=t("ndarray"),f=t("colormap"),h=t("simplicial-complex-contour"),p=t("typedarray-pool"),d=t("./shaders"),g=d.meshShader,v=d.pickShader,m=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];function 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x=y.prototype;function b(t){var e=n(t,v.vertex,v.fragment,null,v.attributes);return e.attributes.position.location=0,e.attributes.id.location=1,e.attributes.vector.location=5,e}x.isOpaque=function(){return this.opacity>=1},x.isTransparent=function(){return this.opacity<1},x.pickSlots=1,x.setPickBase=function(t){this.pickId=t},x.highlight=function(t){if(t&&this.contourEnable){for(var e=h(this.cells,this.intensity,t.intensity),r=e.cells,n=e.vertexIds,i=e.vertexWeights,a=r.length,o=p.mallocFloat32(6*a),s=0,l=0;l<a;++l)for(var c=r[l],u=0;u<2;++u){var f=c[0];2===c.length&&(f=c[u]);for(var d=n[f][0],g=n[f][1],v=i[f],m=1-v,y=this.positions[d],x=this.positions[g],b=0;b<3;++b)o[s++]=v*y[b]+m*x[b]}this.contourCount=s/3|0,this.contourPositions.update(o.subarray(0,s)),p.free(o)}else this.contourCount=0},x.update=function(t){t=t||{};var e=this.gl;this.dirty=!0,"contourEnable"in t&&(this.contourEnable=t.contourEnable),"contourColor"in t&&(this.contourColor=t.contourColor),"lineWidth"in t&&(this.lineWidth=t.lineWidth),"lightPosition"in t&&(this.lightPosition=t.lightPosition),"opacity"in t&&(this.opacity=t.opacity),"ambient"in t&&(this.ambientLight=t.ambient),"diffuse"in t&&(this.diffuseLight=t.diffuse),"specular"in t&&(this.specularLight=t.specular),"roughness"in t&&(this.roughness=t.roughness),"fresnel"in t&&(this.fresnel=t.fresnel),void 0!==t.vectorScale&&(this.vectorScale=t.vectorScale),void 0!==t.coneScale&&(this.coneScale=t.coneScale),void 0!==t.coneOffset&&(this.coneOffset=t.coneOffset),t.texture?(this.texture.dispose(),this.texture=o(e,t.texture)):t.colormap&&(this.texture.shape=[256,256],this.texture.minFilter=e.LINEAR_MIPMAP_LINEAR,this.texture.magFilter=e.LINEAR,this.texture.setPixels(function(t){for(var e=f({colormap:t,nshades:256,format:"rgba"}),r=new Uint8Array(1024),n=0;n<256;++n){for(var i=e[n],a=0;a<3;++a)r[4*n+a]=i[a];r[4*n+3]=255*i[3]}return u(r,[256,256,4],[4,0,1])}(t.colormap)),this.texture.generateMipmap());var r=t.cells,n=t.positions,i=t.vectors;if(n&&r&&i){var a=[],l=[],c=[],h=[],p=[],d=[],g=[],v=[],m=[],y=[],x=[],b=[],_=[],w=[],k=[];this.cells=r,this.positions=n;var T=t.vertexNormals,A=t.cellNormals,M=void 0===t.vertexNormalsEpsilon?1e-6:t.vertexNormalsEpsilon,S=void 0===t.faceNormalsEpsilon?1e-6:t.faceNormalsEpsilon;t.useFacetNormals&&!A&&(A=s.faceNormals(r,n,S)),A||T||(T=s.vertexNormals(r,n,M));var E=t.vertexColors,C=t.cellColors,L=t.meshColor||[1,1,1,1],z=t.vertexUVs,O=t.vertexIntensity,I=t.cellUVs,D=t.cellIntensity,P=1/0,R=-1/0;if(!z&&!I)if(O)if(t.vertexIntensityBounds)P=+t.vertexIntensityBounds[0],R=+t.vertexIntensityBounds[1];else for(var F=0;F<O.length;++F){var B=O[F];P=Math.min(P,B),R=Math.max(R,B)}else if(D)for(F=0;F<D.length;++F){B=D[F];P=Math.min(P,B),R=Math.max(R,B)}else for(F=0;F<n.length;++F){B=n[F][2];P=Math.min(P,B),R=Math.max(R,B)}this.intensity=O||(D?function(t,e,r){for(var n=new Array(e),i=0;i<e;++i)n[i]=0;var a=t.length;for(i=0;i<a;++i)for(var o=t[i],s=0;s<o.length;++s)n[o[s]]=r[i];return n}(r,n.length,D):function(t){for(var e=t.length,r=new Array(e),n=0;n<e;++n)r[n]=t[n][2];return r}(n));var N=t.pointSizes,j=t.pointSize||1;this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]];for(F=0;F<n.length;++F)for(var V=n[F],U=0;U<3;++U)!isNaN(V[U])&&isFinite(V[U])&&(this.bounds[0][U]=Math.min(this.bounds[0][U],V[U]),this.bounds[1][U]=Math.max(this.bounds[1][U],V[U]));var H=0,q=0,G=0;t:for(F=0;F<r.length;++F){var Y=r[F];switch(Y.length){case 1:for(V=n[X=Y[0]],U=0;U<3;++U)if(isNaN(V[U])||!isFinite(V[U]))continue t;x.push(V[0],V[1],V[2],V[3]),3===(Z=E?E[X]:C?C[F]:L).length?b.push(Z[0],Z[1],Z[2],1):b.push(Z[0],Z[1],Z[2],Z[3]),$=z?z[X]:O?[(O[X]-P)/(R-P),0]:I?I[F]:D?[(D[F]-P)/(R-P),0]:[(V[2]-P)/(R-P),0],_.push($[0],$[1]),N?w.push(N[X]):w.push(j),k.push(F),G+=1;break;case 2:for(U=0;U<2;++U){V=n[X=Y[U]];for(var W=0;W<3;++W)if(isNaN(V[W])||!isFinite(V[W]))continue t}for(U=0;U<2;++U){V=n[X=Y[U]];g.push(V[0],V[1],V[2]),3===(Z=E?E[X]:C?C[F]:L).length?v.push(Z[0],Z[1],Z[2],1):v.push(Z[0],Z[1],Z[2],Z[3]),$=z?z[X]:O?[(O[X]-P)/(R-P),0]:I?I[F]:D?[(D[F]-P)/(R-P),0]:[(V[2]-P)/(R-P),0],m.push($[0],$[1]),y.push(F)}q+=1;break;case 3:for(U=0;U<3;++U)for(V=n[X=Y[U]],W=0;W<3;++W)if(isNaN(V[W])||!isFinite(V[W]))continue t;for(U=0;U<3;++U){var X;V=n[X=Y[2-U]];a.push(V[0],V[1],V[2],V[3]);var Z,$,J,K=i[X];l.push(K[0],K[1],K[2]),3===(Z=E?E[X]:C?C[F]:L).length?c.push(Z[0],Z[1],Z[2],1):c.push(Z[0],Z[1],Z[2],Z[3]),$=z?z[X]:O?[(O[X]-P)/(R-P),0]:I?I[F]:D?[(D[F]-P)/(R-P),0]:[(V[2]-P)/(R-P),0],p.push($[0],$[1]),J=T?T[X]:A[F],h.push(J[0],J[1],J[2]),d.push(F)}H+=1}}this.pointCount=G,this.edgeCount=q,this.triangleCount=H,this.pointPositions.update(x),this.pointColors.update(b),this.pointUVs.update(_),this.pointSizes.update(w),this.pointIds.update(new Uint32Array(k)),this.edgePositions.update(g),this.edgeColors.update(v),this.edgeUVs.update(m),this.edgeIds.update(new Uint32Array(y)),this.trianglePositions.update(a),this.triangleVectors.update(l),this.triangleColors.update(c),this.triangleUVs.update(p),this.triangleNormals.update(h),this.triangleIds.update(new Uint32Array(d))}},x.drawTransparent=x.draw=function(t){t=t||{};for(var e=this.gl,r=t.model||m,n=t.view||m,i=t.projection||m,a=[[-1e6,-1e6,-1e6],[1e6,1e6,1e6]],o=0;o<3;++o)a[0][o]=Math.max(a[0][o],this.clipBounds[0][o]),a[1][o]=Math.min(a[1][o],this.clipBounds[1][o]);var s={model:r,view:n,projection:i,inverseModel:m.slice(),clipBounds:a,kambient:this.ambientLight,kdiffuse:this.diffuseLight,kspecular:this.specularLight,roughness:this.roughness,fresnel:this.fresnel,eyePosition:[0,0,0],lightPosition:[0,0,0],opacity:this.opacity,vectorScale:this.vectorScale,coneScale:this.coneScale,coneOffset:this.coneOffset,contourColor:this.contourColor,texture:0};s.inverseModel=c(s.inverseModel,s.model),e.disable(e.CULL_FACE),this.texture.bind(0);var u=new Array(16);l(u,s.view,s.model),l(u,s.projection,u),c(u,u);for(o=0;o<3;++o)s.eyePosition[o]=u[12+o]/u[15];var f=u[15];for(o=0;o<3;++o)f+=this.lightPosition[o]*u[4*o+3];for(o=0;o<3;++o){for(var h=u[12+o],p=0;p<3;++p)h+=u[4*p+o]*this.lightPosition[p];s.lightPosition[o]=h/f}if(this.triangleCount>0){var d=this.triShader;d.bind(),d.uniforms=s,this.triangleVAO.bind(),e.drawArrays(e.TRIANGLES,0,3*this.triangleCount),this.triangleVAO.unbind()}},x.drawPick=function(t){t=t||{};for(var e=this.gl,r=t.model||m,n=t.view||m,i=t.projection||m,a=[[-1e6,-1e6,-1e6],[1e6,1e6,1e6]],o=0;o<3;++o)a[0][o]=Math.max(a[0][o],this.clipBounds[0][o]),a[1][o]=Math.min(a[1][o],this.clipBounds[1][o]);this._model=[].slice.call(r),this._view=[].slice.call(n),this._projection=[].slice.call(i),this._resolution=[e.drawingBufferWidth,e.drawingBufferHeight];var s={model:r,view:n,projection:i,clipBounds:a,vectorScale:this.vectorScale,coneScale:this.coneScale,coneOffset:this.coneOffset,pickId:this.pickId/255},l=this.pickShader;l.bind(),l.uniforms=s,this.triangleCount>0&&(this.triangleVAO.bind(),e.drawArrays(e.TRIANGLES,0,3*this.triangleCount),this.triangleVAO.unbind()),this.edgeCount>0&&(this.edgeVAO.bind(),e.lineWidth(this.lineWidth*this.pixelRatio),e.drawArrays(e.LINES,0,2*this.edgeCount),this.edgeVAO.unbind())},x.pick=function(t){if(!t)return null;if(t.id!==this.pickId)return null;var e=t.value[0]+256*t.value[1]+65536*t.value[2],r=this.cells[e],n=this.positions[r[1]].slice(0,3);return{index:Math.floor(r[1]/48),position:n,dataCoordinate:n}},x.dispose=function(){this.texture.dispose(),this.triShader.dispose(),this.pickShader.dispose(),this.triangleVAO.dispose(),this.trianglePositions.dispose(),this.triangleVectors.dispose(),this.triangleColors.dispose(),this.triangleUVs.dispose(),this.triangleNormals.dispose(),this.triangleIds.dispose(),this.edgeVAO.dispose(),this.edgePositions.dispose(),this.edgeColors.dispose(),this.edgeUVs.dispose(),this.edgeIds.dispose(),this.pointVAO.dispose(),this.pointPositions.dispose(),this.pointColors.dispose(),this.pointUVs.dispose(),this.pointSizes.dispose(),this.pointIds.dispose(),this.contourVAO.dispose(),this.contourPositions.dispose()},e.exports=function(t,e){1===arguments.length&&(t=(e=t).gl);var r=e.triShader||function(t){var e=n(t,g.vertex,g.fragment,null,g.attributes);return e.attributes.position.location=0,e.attributes.color.location=2,e.attributes.uv.location=3,e.attributes.vector.location=5,e}(t),s=b(t),l=o(t,u(new Uint8Array([255,255,255,255]),[1,1,4]));l.generateMipmap(),l.minFilter=t.LINEAR_MIPMAP_LINEAR,l.magFilter=t.LINEAR;var c=i(t),f=i(t),h=i(t),p=i(t),d=i(t),v=i(t),m=a(t,[{buffer:c,type:t.FLOAT,size:4},{buffer:v,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:h,type:t.FLOAT,size:4},{buffer:p,type:t.FLOAT,size:2},{buffer:d,type:t.FLOAT,size:3},{buffer:f,type:t.FLOAT,size:3}]),x=i(t),_=i(t),w=i(t),k=i(t),T=a(t,[{buffer:x,type:t.FLOAT,size:3},{buffer:k,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:_,type:t.FLOAT,size:4},{buffer:w,type:t.FLOAT,size:2}]),A=i(t),M=i(t),S=i(t),E=i(t),C=i(t),L=a(t,[{buffer:A,type:t.FLOAT,size:3},{buffer:C,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:M,type:t.FLOAT,size:4},{buffer:S,type:t.FLOAT,size:2},{buffer:E,type:t.FLOAT,size:1}]),z=i(t),O=new y(t,l,r,s,c,f,v,h,p,d,m,x,k,_,w,T,A,C,M,S,E,L,z,a(t,[{buffer:z,type:t.FLOAT,size:3}]));return O.update(e),O}},{"./shaders":243,colormap:119,"gl-buffer":240,"gl-mat4/invert":264,"gl-mat4/multiply":266,"gl-shader":300,"gl-texture2d":317,"gl-vao":322,ndarray:445,normals:448,"simplicial-complex-contour":505,"typedarray-pool":532}],243:[function(t,e,r){var n=t("glslify"),i=n(["precision highp float;\n\nprecision highp float;\n#define GLSLIFY 1\n\nvec3 getOrthogonalVector(vec3 v) {\n  // Return up-vector for only-z vector.\n  // Return ax + by + cz = 0, a point that lies on the plane that has v as a normal and that isn't (0,0,0).\n  // From the above if-statement we have ||a|| > 0  U  ||b|| > 0.\n  // Assign z = 0, x = -b, y = a:\n  // a*-b + b*a + c*0 = -ba + ba + 0 = 0\n  if (v.x*v.x > v.z*v.z || v.y*v.y > v.z*v.z) {\n    return normalize(vec3(-v.y, v.x, 0.0));\n  } else {\n    return normalize(vec3(0.0, v.z, -v.y));\n  }\n}\n\n// Calculate the cone vertex and normal at the given index.\n//\n// The returned vertex is for a cone with its top at origin and height of 1.0,\n// pointing in the direction of the vector attribute.\n//\n// Each cone is made up of a top vertex, a center base vertex and base perimeter vertices.\n// These vertices are used to make up the triangles of the cone by the following:\n//   segment + 0 top vertex\n//   segment + 1 perimeter vertex a+1\n//   segment + 2 perimeter vertex a\n//   segment + 3 center base vertex\n//   segment + 4 perimeter vertex a\n//   segment + 5 perimeter vertex a+1\n// Where segment is the number of the radial segment * 6 and a is the angle at that radial segment.\n// To go from index to segment, floor(index / 6)\n// To go from segment to angle, 2*pi * (segment/segmentCount)\n// To go from index to segment index, index - (segment*6)\n//\nvec3 getConePosition(vec3 d, float rawIndex, float coneOffset, out vec3 normal) {\n\n  const float segmentCount = 8.0;\n\n  float index = rawIndex - floor(rawIndex /\n    (segmentCount * 6.0)) *\n    (segmentCount * 6.0);\n\n  float segment = floor(0.001 + index/6.0);\n  float segmentIndex = index - (segment*6.0);\n\n  normal = -normalize(d);\n\n  if (segmentIndex > 2.99 && segmentIndex < 3.01) {\n    return mix(vec3(0.0), -d, coneOffset);\n  }\n\n  float nextAngle = (\n    (segmentIndex > 0.99 &&  segmentIndex < 1.01) ||\n    (segmentIndex > 4.99 &&  segmentIndex < 5.01)\n  ) ? 1.0 : 0.0;\n  float angle = 2.0 * 3.14159 * ((segment + nextAngle) / segmentCount);\n\n  vec3 v1 = mix(d, vec3(0.0), coneOffset);\n  vec3 v2 = v1 - d;\n\n  vec3 u = getOrthogonalVector(d);\n  vec3 v = normalize(cross(u, d));\n\n  vec3 x = u * cos(angle) * length(d)*0.25;\n  vec3 y = v * sin(angle) * length(d)*0.25;\n  vec3 v3 = v2 + x + y;\n  if (segmentIndex < 3.0) {\n    vec3 tx = u * sin(angle);\n    vec3 ty = v * -cos(angle);\n    vec3 tangent = tx + ty;\n    normal = normalize(cross(v3 - v1, tangent));\n  }\n\n  if (segmentIndex == 0.0) {\n    return mix(d, vec3(0.0), coneOffset);\n  }\n  return v3;\n}\n\nattribute vec3 vector;\nattribute vec4 color, position;\nattribute vec2 uv;\nuniform float vectorScale;\nuniform float coneScale;\n\nuniform float coneOffset;\n\nuniform mat4 model\n           , view\n           , projection\n           , inverseModel;\nuniform vec3 eyePosition\n           , lightPosition;\n\nvarying vec3 f_normal\n           , f_lightDirection\n           , f_eyeDirection\n           , f_data\n           , f_position;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n  // Scale the vector magnitude to stay constant with\n  // model & view changes.\n  vec3 normal;\n  vec3 XYZ = getConePosition(mat3(model) * ((vectorScale * coneScale) * vector), position.w, coneOffset, normal);\n  vec4 conePosition = model * vec4(position.xyz, 1.0) + vec4(XYZ, 0.0);\n\n  //Lighting geometry parameters\n  vec4 cameraCoordinate = view * conePosition;\n  cameraCoordinate.xyz /= cameraCoordinate.w;\n  f_lightDirection = lightPosition - cameraCoordinate.xyz;\n  f_eyeDirection   = eyePosition - cameraCoordinate.xyz;\n  f_normal = normalize((vec4(normal,0.0) * inverseModel).xyz);\n\n  // vec4 m_position  = model * vec4(conePosition, 1.0);\n  vec4 t_position  = view * conePosition;\n  gl_Position      = projection * t_position;\n\n  f_color          = color;\n  f_data           = conePosition.xyz;\n  f_position       = position.xyz;\n  f_uv             = uv;\n}\n"]),a=n(["#extension GL_OES_standard_derivatives : enable\n\nprecision highp float;\n#define GLSLIFY 1\n\nfloat beckmannDistribution(float x, float roughness) {\n  float NdotH = max(x, 0.0001);\n  float cos2Alpha = NdotH * NdotH;\n  float tan2Alpha = (cos2Alpha - 1.0) / cos2Alpha;\n  float roughness2 = roughness * roughness;\n  float denom = 3.141592653589793 * roughness2 * cos2Alpha * cos2Alpha;\n  return exp(tan2Alpha / roughness2) / denom;\n}\n\nfloat cookTorranceSpecular(\n  vec3 lightDirection,\n  vec3 viewDirection,\n  vec3 surfaceNormal,\n  float roughness,\n  float fresnel) {\n\n  float VdotN = max(dot(viewDirection, surfaceNormal), 0.0);\n  float LdotN = max(dot(lightDirection, surfaceNormal), 0.0);\n\n  //Half angle vector\n  vec3 H = normalize(lightDirection + viewDirection);\n\n  //Geometric term\n  float NdotH = max(dot(surfaceNormal, H), 0.0);\n  float VdotH = max(dot(viewDirection, H), 0.000001);\n  float LdotH = max(dot(lightDirection, H), 0.000001);\n  float G1 = (2.0 * NdotH * VdotN) / VdotH;\n  float G2 = (2.0 * NdotH * LdotN) / LdotH;\n  float G = min(1.0, min(G1, G2));\n  \n  //Distribution term\n  float D = beckmannDistribution(NdotH, roughness);\n\n  //Fresnel term\n  float F = pow(1.0 - VdotN, fresnel);\n\n  //Multiply terms and done\n  return  G * F * D / max(3.14159265 * VdotN, 0.000001);\n}\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float roughness\n            , fresnel\n            , kambient\n            , kdiffuse\n            , kspecular\n            , opacity;\nuniform sampler2D texture;\n\nvarying vec3 f_normal\n           , f_lightDirection\n           , f_eyeDirection\n           , f_data\n           , f_position;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n  vec3 N = normalize(f_normal);\n  vec3 L = normalize(f_lightDirection);\n  vec3 V = normalize(f_eyeDirection);\n\n  if(gl_FrontFacing) {\n    N = -N;\n  }\n\n  float specular = min(1.0, max(0.0, cookTorranceSpecular(L, V, N, roughness, fresnel)));\n  float diffuse  = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n  vec4 surfaceColor = f_color * texture2D(texture, f_uv);\n  vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular,  1.0);\n\n  gl_FragColor = litColor * opacity;\n}\n"]),o=n(["precision highp float;\n\nprecision highp float;\n#define GLSLIFY 1\n\nvec3 getOrthogonalVector(vec3 v) {\n  // Return up-vector for only-z vector.\n  // Return ax + by + cz = 0, a point that lies on the plane that has v as a normal and that isn't (0,0,0).\n  // From the above if-statement we have ||a|| > 0  U  ||b|| > 0.\n  // Assign z = 0, x = -b, y = a:\n  // a*-b + b*a + c*0 = -ba + ba + 0 = 0\n  if (v.x*v.x > v.z*v.z || v.y*v.y > v.z*v.z) {\n    return normalize(vec3(-v.y, v.x, 0.0));\n  } else {\n    return normalize(vec3(0.0, v.z, -v.y));\n  }\n}\n\n// Calculate the cone vertex and normal at the given index.\n//\n// The returned vertex is for a cone with its top at origin and height of 1.0,\n// pointing in the direction of the vector attribute.\n//\n// Each cone is made up of a top vertex, a center base vertex and base perimeter vertices.\n// These vertices are used to make up the triangles of the cone by the following:\n//   segment + 0 top vertex\n//   segment + 1 perimeter vertex a+1\n//   segment + 2 perimeter vertex a\n//   segment + 3 center base vertex\n//   segment + 4 perimeter vertex a\n//   segment + 5 perimeter vertex a+1\n// Where segment is the number of the radial segment * 6 and a is the angle at that radial segment.\n// To go from index to segment, floor(index / 6)\n// To go from segment to angle, 2*pi * (segment/segmentCount)\n// To go from index to segment index, index - (segment*6)\n//\nvec3 getConePosition(vec3 d, float rawIndex, float coneOffset, out vec3 normal) {\n\n  const float segmentCount = 8.0;\n\n  float index = rawIndex - floor(rawIndex /\n    (segmentCount * 6.0)) *\n    (segmentCount * 6.0);\n\n  float segment = floor(0.001 + index/6.0);\n  float segmentIndex = index - (segment*6.0);\n\n  normal = -normalize(d);\n\n  if (segmentIndex > 2.99 && segmentIndex < 3.01) {\n    return mix(vec3(0.0), -d, coneOffset);\n  }\n\n  float nextAngle = (\n    (segmentIndex > 0.99 &&  segmentIndex < 1.01) ||\n    (segmentIndex > 4.99 &&  segmentIndex < 5.01)\n  ) ? 1.0 : 0.0;\n  float angle = 2.0 * 3.14159 * ((segment + nextAngle) / segmentCount);\n\n  vec3 v1 = mix(d, vec3(0.0), coneOffset);\n  vec3 v2 = v1 - d;\n\n  vec3 u = getOrthogonalVector(d);\n  vec3 v = normalize(cross(u, d));\n\n  vec3 x = u * cos(angle) * length(d)*0.25;\n  vec3 y = v * sin(angle) * length(d)*0.25;\n  vec3 v3 = v2 + x + y;\n  if (segmentIndex < 3.0) {\n    vec3 tx = u * sin(angle);\n    vec3 ty = v * -cos(angle);\n    vec3 tangent = tx + ty;\n    normal = normalize(cross(v3 - v1, tangent));\n  }\n\n  if (segmentIndex == 0.0) {\n    return mix(d, vec3(0.0), coneOffset);\n  }\n  return v3;\n}\n\nattribute vec3 vector;\nattribute vec4 position;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\n\nuniform float vectorScale;\nuniform float coneScale;\nuniform float coneOffset;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n  vec3 normal;\n  vec3 XYZ = getConePosition(mat3(model) * ((vectorScale * coneScale) * vector), position.w, coneOffset, normal);\n  vec4 conePosition = model * vec4(position.xyz, 1.0) + vec4(XYZ, 0.0);\n  gl_Position = projection * view * conePosition;\n  f_id        = id;\n  f_position  = position.xyz;\n}\n"]),s=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3  clipBounds[2];\nuniform float pickId;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n\n  gl_FragColor = vec4(pickId, f_id.xyz);\n}"]);r.meshShader={vertex:i,fragment:a,attributes:[{name:"position",type:"vec4"},{name:"normal",type:"vec3"},{name:"color",type:"vec4"},{name:"uv",type:"vec2"},{name:"vector",type:"vec3"}]},r.pickShader={vertex:o,fragment:s,attributes:[{name:"position",type:"vec4"},{name:"id",type:"vec4"},{name:"vector",type:"vec3"}]}},{glslify:404}],244:[function(t,e,r){e.exports={0:"NONE",1:"ONE",2:"LINE_LOOP",3:"LINE_STRIP",4:"TRIANGLES",5:"TRIANGLE_STRIP",6:"TRIANGLE_FAN",256:"DEPTH_BUFFER_BIT",512:"NEVER",513:"LESS",514:"EQUAL",515:"LEQUAL",516:"GREATER",517:"NOTEQUAL",518:"GEQUAL",519:"ALWAYS",768:"SRC_COLOR",769:"ONE_MINUS_SRC_COLOR",770:"SRC_ALPHA",771:"ONE_MINUS_SRC_ALPHA",772:"DST_ALPHA",773:"ONE_MINUS_DST_ALPHA",774:"DST_COLOR",775:"ONE_MINUS_DST_COLOR",776:"SRC_ALPHA_SATURATE",1024:"STENCIL_BUFFER_BIT",1028:"FRONT",1029:"BACK",1032:"FRONT_AND_BACK",1280:"INVALID_ENUM",1281:"INVALID_VALUE",1282:"INVALID_OPERATION",1285:"OUT_OF_MEMORY",1286:"INVALID_FRAMEBUFFER_OPERATION",2304:"CW",2305:"CCW",2849:"LINE_WIDTH",2884:"CULL_FACE",2885:"CULL_FACE_MODE",2886:"FRONT_FACE",2928:"DEPTH_RANGE",2929:"DEPTH_TEST",2930:"DEPTH_WRITEMASK",2931:"DEPTH_CLEAR_VALUE",2932:"DEPTH_FUNC",2960:"STENCIL_TEST",2961:"STENCIL_CLEAR_VALUE",2962:"STENCIL_FUNC",2963:"STENCIL_VALUE_MASK",2964:"STENCIL_FAIL",2965:"STENCIL_PASS_DEPTH_FAIL",2966:"STENCIL_PASS_DEPTH_PASS",2967:"STENCIL_REF",2968:"STENCIL_WRITEMASK",2978:"VIEWPORT",3024:"DITHER",3042:"BLEND",3088:"SCISSOR_BOX",3089:"SCISSOR_TEST",3106:"COLOR_CLEAR_VALUE",3107:"COLOR_WRITEMASK",3317:"UNPACK_ALIGNMENT",3333:"PACK_ALIGNMENT",3379:"MAX_TEXTURE_SIZE",3386:"MAX_VIEWPORT_DIMS",3408:"SUBPIXEL_BITS",3410:"RED_BITS",3411:"GREEN_BITS",3412:"BLUE_BITS",3413:"ALPHA_BITS",3414:"DEPTH_BITS",3415:"STENCIL_BITS",3553:"TEXTURE_2D",4352:"DONT_CARE",4353:"FASTEST",4354:"NICEST",5120:"BYTE",5121:"UNSIGNED_BYTE",5122:"SHORT",5123:"UNSIGNED_SHORT",5124:"INT",5125:"UNSIGNED_INT",5126:"FLOAT",5386:"INVERT",5890:"TEXTURE",6401:"STENCIL_INDEX",6402:"DEPTH_COMPONENT",6406:"ALPHA",6407:"RGB",6408:"RGBA",6409:"LUMINANCE",6410:"LUMINANCE_ALPHA",7680:"KEEP",7681:"REPLACE",7682:"INCR",7683:"DECR",7936:"VENDOR",7937:"RENDERER",7938:"VERSION",9728:"NEAREST",9729:"LINEAR",9984:"NEAREST_MIPMAP_NEAREST",9985:"LINEAR_MIPMAP_NEAREST",9986:"NEAREST_MIPMAP_LINEAR",9987:"LINEAR_MIPMAP_LINEAR",10240:"TEXTURE_MAG_FILTER",10241:"TEXTURE_MIN_FILTER",10242:"TEXTURE_WRAP_S",10243:"TEXTURE_WRAP_T",10497:"REPEAT",10752:"POLYGON_OFFSET_UNITS",16384:"COLOR_BUFFER_BIT",32769:"CONSTANT_COLOR",32770:"ONE_MINUS_CONSTANT_COLOR",32771:"CONSTANT_ALPHA",32772:"ONE_MINUS_CONSTANT_ALPHA",32773:"BLEND_COLOR",32774:"FUNC_ADD",32777:"BLEND_EQUATION_RGB",32778:"FUNC_SUBTRACT",32779:"FUNC_REVERSE_SUBTRACT",32819:"UNSIGNED_SHORT_4_4_4_4",32820:"UNSIGNED_SHORT_5_5_5_1",32823:"POLYGON_OFFSET_FILL",32824:"POLYGON_OFFSET_FACTOR",32854:"RGBA4",32855:"RGB5_A1",32873:"TEXTURE_BINDING_2D",32926:"SAMPLE_ALPHA_TO_COVERAGE",32928:"SAMPLE_COVERAGE",32936:"SAMPLE_BUFFERS",32937:"SAMPLES",32938:"SAMPLE_COVERAGE_VALUE",32939:"SAMPLE_COVERAGE_INVERT",32968:"BLEND_DST_RGB",32969:"BLEND_SRC_RGB",32970:"BLEND_DST_ALPHA",32971:"BLEND_SRC_ALPHA",33071:"CLAMP_TO_EDGE",33170:"GENERATE_MIPMAP_HINT",33189:"DEPTH_COMPONENT16",33306:"DEPTH_STENCIL_ATTACHMENT",33635:"UNSIGNED_SHORT_5_6_5",33648:"MIRRORED_REPEAT",33901:"ALIASED_POINT_SIZE_RANGE",33902:"ALIASED_LINE_WIDTH_RANGE",33984:"TEXTURE0",33985:"TEXTURE1",33986:"TEXTURE2",33987:"TEXTURE3",33988:"TEXTURE4",33989:"TEXTURE5",33990:"TEXTURE6",33991:"TEXTURE7",33992:"TEXTURE8",33993:"TEXTURE9",33994:"TEXTURE10",33995:"TEXTURE11",33996:"TEXTURE12",33997:"TEXTURE13",33998:"TEXTURE14",33999:"TEXTURE15",34000:"TEXTURE16",34001:"TEXTURE17",34002:"TEXTURE18",34003:"TEXTURE19",34004:"TEXTURE20",34005:"TEXTURE21",34006:"TEXTURE22",34007:"TEXTURE23",34008:"TEXTURE24",34009:"TEXTURE25",34010:"TEXTURE26",34011:"TEXTURE27",34012:"TEXTURE28",34013:"TEXTURE29",34014:"TEXTURE30",34015:"TEXTURE31",34016:"ACTIVE_TEXTURE",34024:"MAX_RENDERBUFFER_SIZE",34041:"DEPTH_STENCIL",34055:"INCR_WRAP",34056:"DECR_WRAP",34067:"TEXTURE_CUBE_MAP",34068:"TEXTURE_BINDING_CUBE_MAP",34069:"TEXTURE_CUBE_MAP_POSITIVE_X",34070:"TEXTURE_CUBE_MAP_NEGATIVE_X",34071:"TEXTURE_CUBE_MAP_POSITIVE_Y",34072:"TEXTURE_CUBE_MAP_NEGATIVE_Y",34073:"TEXTURE_CUBE_MAP_POSITIVE_Z",34074:"TEXTURE_CUBE_MAP_NEGATIVE_Z",34076:"MAX_CUBE_MAP_TEXTURE_SIZE",34338:"VERTEX_ATTRIB_ARRAY_ENABLED",34339:"VERTEX_ATTRIB_ARRAY_SIZE",34340:"VERTEX_ATTRIB_ARRAY_STRIDE",34341:"VERTEX_ATTRIB_ARRAY_TYPE",34342:"CURRENT_VERTEX_ATTRIB",34373:"VERTEX_ATTRIB_ARRAY_POINTER",34466:"NUM_COMPRESSED_TEXTURE_FORMATS",34467:"COMPRESSED_TEXTURE_FORMATS",34660:"BUFFER_SIZE",34661:"BUFFER_USAGE",34816:"STENCIL_BACK_FUNC",34817:"STENCIL_BACK_FAIL",34818:"STENCIL_BACK_PASS_DEPTH_FAIL",34819:"STENCIL_BACK_PASS_DEPTH_PASS",34877:"BLEND_EQUATION_ALPHA",34921:"MAX_VERTEX_ATTRIBS",34922:"VERTEX_ATTRIB_ARRAY_NORMALIZED",34930:"MAX_TEXTURE_IMAGE_UNITS",34962:"ARRAY_BUFFER",34963:"ELEMENT_ARRAY_BUFFER",34964:"ARRAY_BUFFER_BINDING",34965:"ELEMENT_ARRAY_BUFFER_BINDING",34975:"VERTEX_ATTRIB_ARRAY_BUFFER_BINDING",35040:"STREAM_DRAW",35044:"STATIC_DRAW",35048:"DYNAMIC_DRAW",35632:"FRAGMENT_SHADER",35633:"VERTEX_SHADER",35660:"MAX_VERTEX_TEXTURE_IMAGE_UNITS",35661:"MAX_COMBINED_TEXTURE_IMAGE_UNITS",35663:"SHADER_TYPE",35664:"FLOAT_VEC2",35665:"FLOAT_VEC3",35666:"FLOAT_VEC4",35667:"INT_VEC2",35668:"INT_VEC3",35669:"INT_VEC4",35670:"BOOL",35671:"BOOL_VEC2",35672:"BOOL_VEC3",35673:"BOOL_VEC4",35674:"FLOAT_MAT2",35675:"FLOAT_MAT3",35676:"FLOAT_MAT4",35678:"SAMPLER_2D",35680:"SAMPLER_CUBE",35712:"DELETE_STATUS",35713:"COMPILE_STATUS",35714:"LINK_STATUS",35715:"VALIDATE_STATUS",35716:"INFO_LOG_LENGTH",35717:"ATTACHED_SHADERS",35718:"ACTIVE_UNIFORMS",35719:"ACTIVE_UNIFORM_MAX_LENGTH",35720:"SHADER_SOURCE_LENGTH",35721:"ACTIVE_ATTRIBUTES",35722:"ACTIVE_ATTRIBUTE_MAX_LENGTH",35724:"SHADING_LANGUAGE_VERSION",35725:"CURRENT_PROGRAM",36003:"STENCIL_BACK_REF",36004:"STENCIL_BACK_VALUE_MASK",36005:"STENCIL_BACK_WRITEMASK",36006:"FRAMEBUFFER_BINDING",36007:"RENDERBUFFER_BINDING",36048:"FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE",36049:"FRAMEBUFFER_ATTACHMENT_OBJECT_NAME",36050:"FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL",36051:"FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE",36053:"FRAMEBUFFER_COMPLETE",36054:"FRAMEBUFFER_INCOMPLETE_ATTACHMENT",36055:"FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT",36057:"FRAMEBUFFER_INCOMPLETE_DIMENSIONS",36061:"FRAMEBUFFER_UNSUPPORTED",36064:"COLOR_ATTACHMENT0",36096:"DEPTH_ATTACHMENT",36128:"STENCIL_ATTACHMENT",36160:"FRAMEBUFFER",36161:"RENDERBUFFER",36162:"RENDERBUFFER_WIDTH",36163:"RENDERBUFFER_HEIGHT",36164:"RENDERBUFFER_INTERNAL_FORMAT",36168:"STENCIL_INDEX8",36176:"RENDERBUFFER_RED_SIZE",36177:"RENDERBUFFER_GREEN_SIZE",36178:"RENDERBUFFER_BLUE_SIZE",36179:"RENDERBUFFER_ALPHA_SIZE",36180:"RENDERBUFFER_DEPTH_SIZE",36181:"RENDERBUFFER_STENCIL_SIZE",36194:"RGB565",36336:"LOW_FLOAT",36337:"MEDIUM_FLOAT",36338:"HIGH_FLOAT",36339:"LOW_INT",36340:"MEDIUM_INT",36341:"HIGH_INT",36346:"SHADER_COMPILER",36347:"MAX_VERTEX_UNIFORM_VECTORS",36348:"MAX_VARYING_VECTORS",36349:"MAX_FRAGMENT_UNIFORM_VECTORS",37440:"UNPACK_FLIP_Y_WEBGL",37441:"UNPACK_PREMULTIPLY_ALPHA_WEBGL",37442:"CONTEXT_LOST_WEBGL",37443:"UNPACK_COLORSPACE_CONVERSION_WEBGL",37444:"BROWSER_DEFAULT_WEBGL"}},{}],245:[function(t,e,r){var n=t("./1.0/numbers");e.exports=function(t){return n[t]}},{"./1.0/numbers":244}],246:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl,r=n(e),o=i(e,[{buffer:r,type:e.FLOAT,size:3,offset:0,stride:40},{buffer:r,type:e.FLOAT,size:4,offset:12,stride:40},{buffer:r,type:e.FLOAT,size:3,offset:28,stride:40}]),l=a(e);l.attributes.position.location=0,l.attributes.color.location=1,l.attributes.offset.location=2;var c=new s(e,r,o,l);return c.update(t),c};var n=t("gl-buffer"),i=t("gl-vao"),a=t("./shaders/index"),o=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];function s(t,e,r,n){this.gl=t,this.shader=n,this.buffer=e,this.vao=r,this.pixelRatio=1,this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],this.clipBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.lineWidth=[1,1,1],this.capSize=[10,10,10],this.lineCount=[0,0,0],this.lineOffset=[0,0,0],this.opacity=1,this.hasAlpha=!1}var l=s.prototype;function c(t,e){for(var r=0;r<3;++r)t[0][r]=Math.min(t[0][r],e[r]),t[1][r]=Math.max(t[1][r],e[r])}l.isOpaque=function(){return!this.hasAlpha},l.isTransparent=function(){return this.hasAlpha},l.drawTransparent=l.draw=function(t){var e=this.gl,r=this.shader.uniforms;this.shader.bind();var n=r.view=t.view||o,i=r.projection=t.projection||o;r.model=t.model||o,r.clipBounds=this.clipBounds,r.opacity=this.opacity;var a=n[12],s=n[13],l=n[14],c=n[15],u=(t._ortho||!1?2:1)*this.pixelRatio*(i[3]*a+i[7]*s+i[11]*l+i[15]*c)/e.drawingBufferHeight;this.vao.bind();for(var f=0;f<3;++f)e.lineWidth(this.lineWidth[f]*this.pixelRatio),r.capSize=this.capSize[f]*u,this.lineCount[f]&&e.drawArrays(e.LINES,this.lineOffset[f],this.lineCount[f]);this.vao.unbind()};var u=function(){for(var t=new Array(3),e=0;e<3;++e){for(var r=[],n=1;n<=2;++n)for(var i=-1;i<=1;i+=2){var a=[0,0,0];a[(n+e)%3]=i,r.push(a)}t[e]=r}return t}();function f(t,e,r,n){for(var i=u[n],a=0;a<i.length;++a){var o=i[a];t.push(e[0],e[1],e[2],r[0],r[1],r[2],r[3],o[0],o[1],o[2])}return i.length}l.update=function(t){"lineWidth"in(t=t||{})&&(this.lineWidth=t.lineWidth,Array.isArray(this.lineWidth)||(this.lineWidth=[this.lineWidth,this.lineWidth,this.lineWidth])),"capSize"in t&&(this.capSize=t.capSize,Array.isArray(this.capSize)||(this.capSize=[this.capSize,this.capSize,this.capSize])),this.hasAlpha=!1,"opacity"in t&&(this.opacity=+t.opacity,this.opacity<1&&(this.hasAlpha=!0));var e=t.color||[[0,0,0],[0,0,0],[0,0,0]],r=t.position,n=t.error;if(Array.isArray(e[0])||(e=[e,e,e]),r&&n){var i=[],a=r.length,o=0;this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],this.lineCount=[0,0,0];for(var s=0;s<3;++s){this.lineOffset[s]=o;t:for(var l=0;l<a;++l){for(var u=r[l],h=0;h<3;++h)if(isNaN(u[h])||!isFinite(u[h]))continue t;var p=n[l],d=e[s];if(Array.isArray(d[0])&&(d=e[l]),3===d.length?d=[d[0],d[1],d[2],1]:4===d.length&&(d=[d[0],d[1],d[2],d[3]],!this.hasAlpha&&d[3]<1&&(this.hasAlpha=!0)),!isNaN(p[0][s])&&!isNaN(p[1][s])){var g;if(p[0][s]<0)(g=u.slice())[s]+=p[0][s],i.push(u[0],u[1],u[2],d[0],d[1],d[2],d[3],0,0,0,g[0],g[1],g[2],d[0],d[1],d[2],d[3],0,0,0),c(this.bounds,g),o+=2+f(i,g,d,s);if(p[1][s]>0)(g=u.slice())[s]+=p[1][s],i.push(u[0],u[1],u[2],d[0],d[1],d[2],d[3],0,0,0,g[0],g[1],g[2],d[0],d[1],d[2],d[3],0,0,0),c(this.bounds,g),o+=2+f(i,g,d,s)}}this.lineCount[s]=o-this.lineOffset[s]}this.buffer.update(i)}},l.dispose=function(){this.shader.dispose(),this.buffer.dispose(),this.vao.dispose()}},{"./shaders/index":247,"gl-buffer":240,"gl-vao":322}],247:[function(t,e,r){"use strict";var n=t("glslify"),i=t("gl-shader"),a=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position, offset;\nattribute vec4 color;\nuniform mat4 model, view, projection;\nuniform float capSize;\nvarying vec4 fragColor;\nvarying vec3 fragPosition;\n\nvoid main() {\n  vec4 worldPosition  = model * vec4(position, 1.0);\n  worldPosition       = (worldPosition / worldPosition.w) + vec4(capSize * offset, 0.0);\n  gl_Position         = projection * view * worldPosition;\n  fragColor           = color;\n  fragPosition        = position;\n}"]),o=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float opacity;\nvarying vec3 fragPosition;\nvarying vec4 fragColor;\n\nvoid main() {\n  if (\n    outOfRange(clipBounds[0], clipBounds[1], fragPosition) ||\n    fragColor.a * opacity == 0.\n  ) discard;\n\n  gl_FragColor = opacity * fragColor;\n}"]);e.exports=function(t){return i(t,a,o,null,[{name:"position",type:"vec3"},{name:"color",type:"vec4"},{name:"offset",type:"vec3"}])}},{"gl-shader":300,glslify:404}],248:[function(t,e,r){"use strict";var n=t("gl-texture2d");e.exports=function(t,e,r,n){i||(i=t.FRAMEBUFFER_UNSUPPORTED,a=t.FRAMEBUFFER_INCOMPLETE_ATTACHMENT,o=t.FRAMEBUFFER_INCOMPLETE_DIMENSIONS,s=t.FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT);var c=t.getExtension("WEBGL_draw_buffers");!l&&c&&function(t,e){var r=t.getParameter(e.MAX_COLOR_ATTACHMENTS_WEBGL);l=new Array(r+1);for(var n=0;n<=r;++n){for(var i=new Array(r),a=0;a<n;++a)i[a]=t.COLOR_ATTACHMENT0+a;for(var a=n;a<r;++a)i[a]=t.NONE;l[n]=i}}(t,c);Array.isArray(e)&&(n=r,r=0|e[1],e=0|e[0]);if("number"!=typeof e)throw new Error("gl-fbo: Missing shape parameter");var u=t.getParameter(t.MAX_RENDERBUFFER_SIZE);if(e<0||e>u||r<0||r>u)throw new Error("gl-fbo: Parameters are too large for FBO");var f=1;if("color"in(n=n||{})){if((f=Math.max(0|n.color,0))<0)throw new Error("gl-fbo: Must specify a nonnegative number of colors");if(f>1){if(!c)throw new Error("gl-fbo: Multiple draw buffer extension not supported");if(f>t.getParameter(c.MAX_COLOR_ATTACHMENTS_WEBGL))throw new Error("gl-fbo: Context does not support "+f+" draw buffers")}}var h=t.UNSIGNED_BYTE,p=t.getExtension("OES_texture_float");if(n.float&&f>0){if(!p)throw new Error("gl-fbo: Context does not support floating point textures");h=t.FLOAT}else n.preferFloat&&f>0&&p&&(h=t.FLOAT);var g=!0;"depth"in n&&(g=!!n.depth);var v=!1;"stencil"in n&&(v=!!n.stencil);return new d(t,e,r,h,f,g,v,c)};var i,a,o,s,l=null;function c(t){return[t.getParameter(t.FRAMEBUFFER_BINDING),t.getParameter(t.RENDERBUFFER_BINDING),t.getParameter(t.TEXTURE_BINDING_2D)]}function u(t,e){t.bindFramebuffer(t.FRAMEBUFFER,e[0]),t.bindRenderbuffer(t.RENDERBUFFER,e[1]),t.bindTexture(t.TEXTURE_2D,e[2])}function f(t){switch(t){case i:throw new Error("gl-fbo: Framebuffer unsupported");case a:throw new Error("gl-fbo: Framebuffer incomplete attachment");case o:throw new Error("gl-fbo: Framebuffer incomplete dimensions");case s:throw new Error("gl-fbo: Framebuffer incomplete missing attachment");default:throw new Error("gl-fbo: Framebuffer failed for unspecified reason")}}function h(t,e,r,i,a,o){if(!i)return null;var s=n(t,e,r,a,i);return s.magFilter=t.NEAREST,s.minFilter=t.NEAREST,s.mipSamples=1,s.bind(),t.framebufferTexture2D(t.FRAMEBUFFER,o,t.TEXTURE_2D,s.handle,0),s}function p(t,e,r,n,i){var a=t.createRenderbuffer();return t.bindRenderbuffer(t.RENDERBUFFER,a),t.renderbufferStorage(t.RENDERBUFFER,n,e,r),t.framebufferRenderbuffer(t.FRAMEBUFFER,i,t.RENDERBUFFER,a),a}function d(t,e,r,n,i,a,o,s){this.gl=t,this._shape=[0|e,0|r],this._destroyed=!1,this._ext=s,this.color=new Array(i);for(var d=0;d<i;++d)this.color[d]=null;this._color_rb=null,this.depth=null,this._depth_rb=null,this._colorType=n,this._useDepth=a,this._useStencil=o;var g=this,v=[0|e,0|r];Object.defineProperties(v,{0:{get:function(){return g._shape[0]},set:function(t){return g.width=t}},1:{get:function(){return g._shape[1]},set:function(t){return g.height=t}}}),this._shapeVector=v,function(t){var e=c(t.gl),r=t.gl,n=t.handle=r.createFramebuffer(),i=t._shape[0],a=t._shape[1],o=t.color.length,s=t._ext,d=t._useStencil,g=t._useDepth,v=t._colorType;r.bindFramebuffer(r.FRAMEBUFFER,n);for(var m=0;m<o;++m)t.color[m]=h(r,i,a,v,r.RGBA,r.COLOR_ATTACHMENT0+m);0===o?(t._color_rb=p(r,i,a,r.RGBA4,r.COLOR_ATTACHMENT0),s&&s.drawBuffersWEBGL(l[0])):o>1&&s.drawBuffersWEBGL(l[o]);var y=r.getExtension("WEBGL_depth_texture");y?d?t.depth=h(r,i,a,y.UNSIGNED_INT_24_8_WEBGL,r.DEPTH_STENCIL,r.DEPTH_STENCIL_ATTACHMENT):g&&(t.depth=h(r,i,a,r.UNSIGNED_SHORT,r.DEPTH_COMPONENT,r.DEPTH_ATTACHMENT)):g&&d?t._depth_rb=p(r,i,a,r.DEPTH_STENCIL,r.DEPTH_STENCIL_ATTACHMENT):g?t._depth_rb=p(r,i,a,r.DEPTH_COMPONENT16,r.DEPTH_ATTACHMENT):d&&(t._depth_rb=p(r,i,a,r.STENCIL_INDEX,r.STENCIL_ATTACHMENT));var x=r.checkFramebufferStatus(r.FRAMEBUFFER);if(x!==r.FRAMEBUFFER_COMPLETE){for(t._destroyed=!0,r.bindFramebuffer(r.FRAMEBUFFER,null),r.deleteFramebuffer(t.handle),t.handle=null,t.depth&&(t.depth.dispose(),t.depth=null),t._depth_rb&&(r.deleteRenderbuffer(t._depth_rb),t._depth_rb=null),m=0;m<t.color.length;++m)t.color[m].dispose(),t.color[m]=null;t._color_rb&&(r.deleteRenderbuffer(t._color_rb),t._color_rb=null),u(r,e),f(x)}u(r,e)}(this)}var g=d.prototype;function v(t,e,r){if(t._destroyed)throw new Error("gl-fbo: Can't resize destroyed FBO");if(t._shape[0]!==e||t._shape[1]!==r){var n=t.gl,i=n.getParameter(n.MAX_RENDERBUFFER_SIZE);if(e<0||e>i||r<0||r>i)throw new Error("gl-fbo: Can't resize FBO, invalid dimensions");t._shape[0]=e,t._shape[1]=r;for(var a=c(n),o=0;o<t.color.length;++o)t.color[o].shape=t._shape;t._color_rb&&(n.bindRenderbuffer(n.RENDERBUFFER,t._color_rb),n.renderbufferStorage(n.RENDERBUFFER,n.RGBA4,t._shape[0],t._shape[1])),t.depth&&(t.depth.shape=t._shape),t._depth_rb&&(n.bindRenderbuffer(n.RENDERBUFFER,t._depth_rb),t._useDepth&&t._useStencil?n.renderbufferStorage(n.RENDERBUFFER,n.DEPTH_STENCIL,t._shape[0],t._shape[1]):t._useDepth?n.renderbufferStorage(n.RENDERBUFFER,n.DEPTH_COMPONENT16,t._shape[0],t._shape[1]):t._useStencil&&n.renderbufferStorage(n.RENDERBUFFER,n.STENCIL_INDEX,t._shape[0],t._shape[1])),n.bindFramebuffer(n.FRAMEBUFFER,t.handle);var s=n.checkFramebufferStatus(n.FRAMEBUFFER);s!==n.FRAMEBUFFER_COMPLETE&&(t.dispose(),u(n,a),f(s)),u(n,a)}}Object.defineProperties(g,{shape:{get:function(){return this._destroyed?[0,0]:this._shapeVector},set:function(t){if(Array.isArray(t)||(t=[0|t,0|t]),2!==t.length)throw new Error("gl-fbo: Shape vector must be length 2");var e=0|t[0],r=0|t[1];return v(this,e,r),[e,r]},enumerable:!1},width:{get:function(){return this._destroyed?0:this._shape[0]},set:function(t){return v(this,t|=0,this._shape[1]),t},enumerable:!1},height:{get:function(){return this._destroyed?0:this._shape[1]},set:function(t){return t|=0,v(this,this._shape[0],t),t},enumerable:!1}}),g.bind=function(){if(!this._destroyed){var t=this.gl;t.bindFramebuffer(t.FRAMEBUFFER,this.handle),t.viewport(0,0,this._shape[0],this._shape[1])}},g.dispose=function(){if(!this._destroyed){this._destroyed=!0;var t=this.gl;t.deleteFramebuffer(this.handle),this.handle=null,this.depth&&(this.depth.dispose(),this.depth=null),this._depth_rb&&(t.deleteRenderbuffer(this._depth_rb),this._depth_rb=null);for(var e=0;e<this.color.length;++e)this.color[e].dispose(),this.color[e]=null;this._color_rb&&(t.deleteRenderbuffer(this._color_rb),this._color_rb=null)}}},{"gl-texture2d":317}],249:[function(t,e,r){var n=t("sprintf-js").sprintf,i=t("gl-constants/lookup"),a=t("glsl-shader-name"),o=t("add-line-numbers");e.exports=function(t,e,r){"use strict";var s=a(e)||"of unknown name (see npm glsl-shader-name)",l="unknown type";void 0!==r&&(l=r===i.FRAGMENT_SHADER?"fragment":"vertex");for(var c=n("Error compiling %s shader %s:\n",l,s),u=n("%s%s",c,t),f=t.split("\n"),h={},p=0;p<f.length;p++){var d=f[p];if(""!==d&&"\0"!==d){var g=parseInt(d.split(":")[2]);if(isNaN(g))throw new Error(n("Could not parse error: %s",d));h[g]=d}}for(var v=o(e).split("\n"),p=0;p<v.length;p++)if(h[p+3]||h[p+2]||h[p+1]){var m=v[p];if(c+=m+"\n",h[p+1]){var y=h[p+1];y=y.substr(y.split(":",3).join(":").length+1).trim(),c+=n("^^^ %s\n\n",y)}}return{long:c.trim(),short:u.trim()}}},{"add-line-numbers":54,"gl-constants/lookup":245,"glsl-shader-name":396,"sprintf-js":515}],250:[function(t,e,r){"use strict";e.exports=function(t,e){var r=t.gl,n=o(r,l.vertex,l.fragment),i=o(r,l.pickVertex,l.pickFragment),a=s(r),u=s(r),f=s(r),h=s(r),p=new c(t,n,i,a,u,f,h);return p.update(e),t.addObject(p),p};var n=t("binary-search-bounds"),i=t("iota-array"),a=t("typedarray-pool"),o=t("gl-shader"),s=t("gl-buffer"),l=t("./lib/shaders");function c(t,e,r,n,i,a,o){this.plot=t,this.shader=e,this.pickShader=r,this.positionBuffer=n,this.weightBuffer=i,this.colorBuffer=a,this.idBuffer=o,this.xData=[],this.yData=[],this.shape=[0,0],this.bounds=[1/0,1/0,-1/0,-1/0],this.pickOffset=0}var u,f=c.prototype,h=[0,0,1,0,0,1,1,0,1,1,0,1];f.draw=(u=[1,0,0,0,1,0,0,0,1],function(){var t=this.plot,e=this.shader,r=this.bounds,n=this.numVertices;if(!(n<=0)){var i=t.gl,a=t.dataBox,o=r[2]-r[0],s=r[3]-r[1],l=a[2]-a[0],c=a[3]-a[1];u[0]=2*o/l,u[4]=2*s/c,u[6]=2*(r[0]-a[0])/l-1,u[7]=2*(r[1]-a[1])/c-1,e.bind();var f=e.uniforms;f.viewTransform=u,f.shape=this.shape;var h=e.attributes;this.positionBuffer.bind(),h.position.pointer(),this.weightBuffer.bind(),h.weight.pointer(i.UNSIGNED_BYTE,!1),this.colorBuffer.bind(),h.color.pointer(i.UNSIGNED_BYTE,!0),i.drawArrays(i.TRIANGLES,0,n)}}),f.drawPick=function(){var t=[1,0,0,0,1,0,0,0,1],e=[0,0,0,0];return function(r){var n=this.plot,i=this.pickShader,a=this.bounds,o=this.numVertices;if(!(o<=0)){var s=n.gl,l=n.dataBox,c=a[2]-a[0],u=a[3]-a[1],f=l[2]-l[0],h=l[3]-l[1];t[0]=2*c/f,t[4]=2*u/h,t[6]=2*(a[0]-l[0])/f-1,t[7]=2*(a[1]-l[1])/h-1;for(var p=0;p<4;++p)e[p]=r>>8*p&255;this.pickOffset=r,i.bind();var d=i.uniforms;d.viewTransform=t,d.pickOffset=e,d.shape=this.shape;var g=i.attributes;return this.positionBuffer.bind(),g.position.pointer(),this.weightBuffer.bind(),g.weight.pointer(s.UNSIGNED_BYTE,!1),this.idBuffer.bind(),g.pickId.pointer(s.UNSIGNED_BYTE,!1),s.drawArrays(s.TRIANGLES,0,o),r+this.shape[0]*this.shape[1]}}}(),f.pick=function(t,e,r){var n=this.pickOffset,i=this.shape[0]*this.shape[1];if(r<n||r>=n+i)return null;var a=r-n,o=this.xData,s=this.yData;return{object:this,pointId:a,dataCoord:[o[a%this.shape[0]],s[a/this.shape[0]|0]]}},f.update=function(t){var e=(t=t||{}).shape||[0,0],r=t.x||i(e[0]),o=t.y||i(e[1]),s=t.z||new Float32Array(e[0]*e[1]);this.xData=r,this.yData=o;var l=t.colorLevels||[0],c=t.colorValues||[0,0,0,1],u=l.length,f=this.bounds,p=f[0]=r[0],d=f[1]=o[0],g=1/((f[2]=r[r.length-1])-p),v=1/((f[3]=o[o.length-1])-d),m=e[0],y=e[1];this.shape=[m,y];var x=(m-1)*(y-1)*(h.length>>>1);this.numVertices=x;for(var b=a.mallocUint8(4*x),_=a.mallocFloat32(2*x),w=a.mallocUint8(2*x),k=a.mallocUint32(x),T=0,A=0;A<y-1;++A)for(var M=v*(o[A]-d),S=v*(o[A+1]-d),E=0;E<m-1;++E)for(var C=g*(r[E]-p),L=g*(r[E+1]-p),z=0;z<h.length;z+=2){var O,I,D,P,R=h[z],F=h[z+1],B=s[(A+F)*m+(E+R)],N=n.le(l,B);if(N<0)O=c[0],I=c[1],D=c[2],P=c[3];else if(N===u-1)O=c[4*u-4],I=c[4*u-3],D=c[4*u-2],P=c[4*u-1];else{var j=(B-l[N])/(l[N+1]-l[N]),V=1-j,U=4*N,H=4*(N+1);O=V*c[U]+j*c[H],I=V*c[U+1]+j*c[H+1],D=V*c[U+2]+j*c[H+2],P=V*c[U+3]+j*c[H+3]}b[4*T]=255*O,b[4*T+1]=255*I,b[4*T+2]=255*D,b[4*T+3]=255*P,_[2*T]=.5*C+.5*L,_[2*T+1]=.5*M+.5*S,w[2*T]=R,w[2*T+1]=F,k[T]=A*m+E,T+=1}this.positionBuffer.update(_),this.weightBuffer.update(w),this.colorBuffer.update(b),this.idBuffer.update(k),a.free(_),a.free(b),a.free(w),a.free(k)},f.dispose=function(){this.shader.dispose(),this.pickShader.dispose(),this.positionBuffer.dispose(),this.weightBuffer.dispose(),this.colorBuffer.dispose(),this.idBuffer.dispose(),this.plot.removeObject(this)}},{"./lib/shaders":251,"binary-search-bounds":252,"gl-buffer":240,"gl-shader":300,"iota-array":411,"typedarray-pool":532}],251:[function(t,e,r){"use strict";var n=t("glslify");e.exports={fragment:n(["precision lowp float;\n#define GLSLIFY 1\nvarying vec4 fragColor;\nvoid main() {\n  gl_FragColor = vec4(fragColor.rgb * fragColor.a, fragColor.a);\n}\n"]),vertex:n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 position;\nattribute vec4 color;\nattribute vec2 weight;\n\nuniform vec2 shape;\nuniform mat3 viewTransform;\n\nvarying vec4 fragColor;\n\nvoid main() {\n  vec3 vPosition = viewTransform * vec3( position + (weight-.5)/(shape-1.) , 1.0);\n  fragColor = color;\n  gl_Position = vec4(vPosition.xy, 0, vPosition.z);\n}\n"]),pickFragment:n(["precision mediump float;\n#define GLSLIFY 1\n\nvarying vec4 fragId;\nvarying vec2 vWeight;\n\nuniform vec2 shape;\nuniform vec4 pickOffset;\n\nvoid main() {\n  vec2 d = step(.5, vWeight);\n  vec4 id = fragId + pickOffset;\n  id.x += d.x + d.y*shape.x;\n\n  id.y += floor(id.x / 256.0);\n  id.x -= floor(id.x / 256.0) * 256.0;\n\n  id.z += floor(id.y / 256.0);\n  id.y -= floor(id.y / 256.0) * 256.0;\n\n  id.w += floor(id.z / 256.0);\n  id.z -= floor(id.z / 256.0) * 256.0;\n\n  gl_FragColor = id/255.;\n}\n"]),pickVertex:n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 position;\nattribute vec4 pickId;\nattribute vec2 weight;\n\nuniform vec2 shape;\nuniform mat3 viewTransform;\n\nvarying vec4 fragId;\nvarying vec2 vWeight;\n\nvoid main() {\n  vWeight = weight;\n\n  fragId = pickId;\n\n  vec3 vPosition = viewTransform * vec3( position + (weight-.5)/(shape-1.) , 1.0);\n  gl_Position = vec4(vPosition.xy, 0, vPosition.z);\n}\n"])}},{glslify:404}],252:[function(t,e,r){arguments[4][104][0].apply(r,arguments)},{dup:104}],253:[function(t,e,r){var n=t("glslify"),i=t("gl-shader"),a=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position, nextPosition;\nattribute float arcLength, lineWidth;\nattribute vec4 color;\n\nuniform vec2 screenShape;\nuniform float pixelRatio;\nuniform mat4 model, view, projection;\n\nvarying vec4 fragColor;\nvarying vec3 worldPosition;\nvarying float pixelArcLength;\n\nvec4 project(vec3 p) {\n  return projection * view * model * vec4(p, 1.0);\n}\n\nvoid main() {\n  vec4 startPoint = project(position);\n  vec4 endPoint   = project(nextPosition);\n\n  vec2 A = startPoint.xy / startPoint.w;\n  vec2 B =   endPoint.xy /   endPoint.w;\n\n  float clipAngle = atan(\n    (B.y - A.y) * screenShape.y,\n    (B.x - A.x) * screenShape.x\n  );\n\n  vec2 offset = 0.5 * pixelRatio * lineWidth * vec2(\n    sin(clipAngle),\n    -cos(clipAngle)\n  ) / screenShape;\n\n  gl_Position = vec4(startPoint.xy + startPoint.w * offset, startPoint.zw);\n\n  worldPosition = position;\n  pixelArcLength = arcLength;\n  fragColor = color;\n}\n"]),o=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3      clipBounds[2];\nuniform sampler2D dashTexture;\nuniform float     dashScale;\nuniform float     opacity;\n\nvarying vec3    worldPosition;\nvarying float   pixelArcLength;\nvarying vec4    fragColor;\n\nvoid main() {\n  if (\n    outOfRange(clipBounds[0], clipBounds[1], worldPosition) ||\n    fragColor.a * opacity == 0.\n  ) discard;\n\n  float dashWeight = texture2D(dashTexture, vec2(dashScale * pixelArcLength, 0)).r;\n  if(dashWeight < 0.5) {\n    discard;\n  }\n  gl_FragColor = fragColor * opacity;\n}\n"]),s=n(["precision highp float;\n#define GLSLIFY 1\n\n#define FLOAT_MAX  1.70141184e38\n#define FLOAT_MIN  1.17549435e-38\n\nlowp vec4 encode_float_1540259130(highp float v) {\n  highp float av = abs(v);\n\n  //Handle special cases\n  if(av < FLOAT_MIN) {\n    return vec4(0.0, 0.0, 0.0, 0.0);\n  } else if(v > FLOAT_MAX) {\n    return vec4(127.0, 128.0, 0.0, 0.0) / 255.0;\n  } else if(v < -FLOAT_MAX) {\n    return vec4(255.0, 128.0, 0.0, 0.0) / 255.0;\n  }\n\n  highp vec4 c = vec4(0,0,0,0);\n\n  //Compute exponent and mantissa\n  highp float e = floor(log2(av));\n  highp float m = av * pow(2.0, -e) - 1.0;\n  \n  //Unpack mantissa\n  c[1] = floor(128.0 * m);\n  m -= c[1] / 128.0;\n  c[2] = floor(32768.0 * m);\n  m -= c[2] / 32768.0;\n  c[3] = floor(8388608.0 * m);\n  \n  //Unpack exponent\n  highp float ebias = e + 127.0;\n  c[0] = floor(ebias / 2.0);\n  ebias -= c[0] * 2.0;\n  c[1] += floor(ebias) * 128.0; \n\n  //Unpack sign bit\n  c[0] += 128.0 * step(0.0, -v);\n\n  //Scale back to range\n  return c / 255.0;\n}\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform float pickId;\nuniform vec3 clipBounds[2];\n\nvarying vec3 worldPosition;\nvarying float pixelArcLength;\nvarying vec4 fragColor;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], worldPosition)) discard;\n\n  gl_FragColor = vec4(pickId/255.0, encode_float_1540259130(pixelArcLength).xyz);\n}"]),l=[{name:"position",type:"vec3"},{name:"nextPosition",type:"vec3"},{name:"arcLength",type:"float"},{name:"lineWidth",type:"float"},{name:"color",type:"vec4"}];r.createShader=function(t){return i(t,a,o,null,l)},r.createPickShader=function(t){return i(t,a,s,null,l)}},{"gl-shader":300,glslify:404}],254:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl||t.scene&&t.scene.gl,r=u(e);r.attributes.position.location=0,r.attributes.nextPosition.location=1,r.attributes.arcLength.location=2,r.attributes.lineWidth.location=3,r.attributes.color.location=4;var o=f(e);o.attributes.position.location=0,o.attributes.nextPosition.location=1,o.attributes.arcLength.location=2,o.attributes.lineWidth.location=3,o.attributes.color.location=4;for(var s=n(e),c=i(e,[{buffer:s,size:3,offset:0,stride:48},{buffer:s,size:3,offset:12,stride:48},{buffer:s,size:1,offset:24,stride:48},{buffer:s,size:1,offset:28,stride:48},{buffer:s,size:4,offset:32,stride:48}]),h=l(new Array(1024),[256,1,4]),p=0;p<1024;++p)h.data[p]=255;var d=a(e,h);d.wrap=e.REPEAT;var g=new v(e,r,o,s,c,d);return g.update(t),g};var n=t("gl-buffer"),i=t("gl-vao"),a=t("gl-texture2d"),o=t("glsl-read-float"),s=t("binary-search-bounds"),l=t("ndarray"),c=t("./lib/shaders"),u=c.createShader,f=c.createPickShader,h=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];function p(t,e){for(var r=0,n=0;n<3;++n){var i=t[n]-e[n];r+=i*i}return Math.sqrt(r)}function d(t){for(var e=[[-1e6,-1e6,-1e6],[1e6,1e6,1e6]],r=0;r<3;++r)e[0][r]=Math.max(t[0][r],e[0][r]),e[1][r]=Math.min(t[1][r],e[1][r]);return e}function g(t,e,r,n){this.arcLength=t,this.position=e,this.index=r,this.dataCoordinate=n}function v(t,e,r,n,i,a){this.gl=t,this.shader=e,this.pickShader=r,this.buffer=n,this.vao=i,this.clipBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.points=[],this.arcLength=[],this.vertexCount=0,this.bounds=[[0,0,0],[0,0,0]],this.pickId=0,this.lineWidth=1,this.texture=a,this.dashScale=1,this.opacity=1,this.hasAlpha=!1,this.dirty=!0,this.pixelRatio=1}var m=v.prototype;m.isTransparent=function(){return this.hasAlpha},m.isOpaque=function(){return!this.hasAlpha},m.pickSlots=1,m.setPickBase=function(t){this.pickId=t},m.drawTransparent=m.draw=function(t){if(this.vertexCount){var e=this.gl,r=this.shader,n=this.vao;r.bind(),r.uniforms={model:t.model||h,view:t.view||h,projection:t.projection||h,clipBounds:d(this.clipBounds),dashTexture:this.texture.bind(),dashScale:this.dashScale/this.arcLength[this.arcLength.length-1],opacity:this.opacity,screenShape:[e.drawingBufferWidth,e.drawingBufferHeight],pixelRatio:this.pixelRatio},n.bind(),n.draw(e.TRIANGLE_STRIP,this.vertexCount),n.unbind()}},m.drawPick=function(t){if(this.vertexCount){var e=this.gl,r=this.pickShader,n=this.vao;r.bind(),r.uniforms={model:t.model||h,view:t.view||h,projection:t.projection||h,pickId:this.pickId,clipBounds:d(this.clipBounds),screenShape:[e.drawingBufferWidth,e.drawingBufferHeight],pixelRatio:this.pixelRatio},n.bind(),n.draw(e.TRIANGLE_STRIP,this.vertexCount),n.unbind()}},m.update=function(t){var e,r;this.dirty=!0;var n=!!t.connectGaps;"dashScale"in t&&(this.dashScale=t.dashScale),this.hasAlpha=!1,"opacity"in t&&(this.opacity=+t.opacity,this.opacity<1&&(this.hasAlpha=!0));var i=[],a=[],o=[],c=0,u=0,f=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],h=t.position||t.positions;if(h){var d=t.color||t.colors||[0,0,0,1],g=t.lineWidth||1,v=!1;t:for(e=1;e<h.length;++e){var m,y,x,b=h[e-1],_=h[e];for(a.push(c),o.push(b.slice()),r=0;r<3;++r){if(isNaN(b[r])||isNaN(_[r])||!isFinite(b[r])||!isFinite(_[r])){if(!n&&i.length>0){for(var w=0;w<24;++w)i.push(i[i.length-12]);u+=2,v=!0}continue t}f[0][r]=Math.min(f[0][r],b[r],_[r]),f[1][r]=Math.max(f[1][r],b[r],_[r])}Array.isArray(d[0])?(m=d.length>e-1?d[e-1]:d.length>0?d[d.length-1]:[0,0,0,1],y=d.length>e?d[e]:d.length>0?d[d.length-1]:[0,0,0,1]):m=y=d,3===m.length&&(m=[m[0],m[1],m[2],1]),3===y.length&&(y=[y[0],y[1],y[2],1]),!this.hasAlpha&&m[3]<1&&(this.hasAlpha=!0),x=Array.isArray(g)?g.length>e-1?g[e-1]:g.length>0?g[g.length-1]:[0,0,0,1]:g;var 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null;if(r===this.arcLength.length-1)return new g(this.arcLength[this.arcLength.length-1],this.points[this.points.length-1].slice(),r);for(var n=this.points[r],i=this.points[Math.min(r+1,this.points.length-1)],a=(e-this.arcLength[r])/(this.arcLength[r+1]-this.arcLength[r]),l=1-a,c=[0,0,0],u=0;u<3;++u)c[u]=l*n[u]+a*i[u];var f=Math.min(a<.5?r:r+1,this.points.length-1);return new g(e,c,f,this.points[f])}},{"./lib/shaders":253,"binary-search-bounds":255,"gl-buffer":240,"gl-texture2d":317,"gl-vao":322,"glsl-read-float":395,ndarray:445}],255:[function(t,e,r){arguments[4][104][0].apply(r,arguments)},{dup:104}],256:[function(t,e,r){e.exports=function(t,e){var r=e[0],n=e[1],i=e[2],a=e[3],o=r*a-i*n;return o?(o=1/o,t[0]=a*o,t[1]=-n*o,t[2]=-i*o,t[3]=r*o,t):null}},{}],257:[function(t,e,r){e.exports=function(t,e){var r=e[0],n=e[1],i=e[2],a=e[3],o=e[4],s=e[5],l=e[6],c=e[7],u=e[8],f=u*o-s*c,h=-u*a+s*l,p=c*a-o*l,d=r*f+n*h+i*p;return 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r=e[0],n=e[1],i=e[2],a=e[3],o=r+r,s=n+n,l=i+i,c=r*o,u=n*o,f=n*s,h=i*o,p=i*s,d=i*l,g=a*o,v=a*s,m=a*l;return t[0]=1-f-d,t[1]=u+m,t[2]=h-v,t[3]=0,t[4]=u-m,t[5]=1-c-d,t[6]=p+g,t[7]=0,t[8]=h+v,t[9]=p-g,t[10]=1-c-f,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}},{}],262:[function(t,e,r){e.exports=function(t,e,r){var n=e[0],i=e[1],a=e[2],o=e[3],s=n+n,l=i+i,c=a+a,u=n*s,f=n*l,h=n*c,p=i*l,d=i*c,g=a*c,v=o*s,m=o*l,y=o*c;return t[0]=1-(p+g),t[1]=f+y,t[2]=h-m,t[3]=0,t[4]=f-y,t[5]=1-(u+g),t[6]=d+v,t[7]=0,t[8]=h+m,t[9]=d-v,t[10]=1-(u+p),t[11]=0,t[12]=r[0],t[13]=r[1],t[14]=r[2],t[15]=1,t}},{}],263:[function(t,e,r){e.exports=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}},{}],264:[function(t,e,r){e.exports=function(t,e){var r=e[0],n=e[1],i=e[2],a=e[3],o=e[4],s=e[5],l=e[6],c=e[7],u=e[8],f=e[9],h=e[10],p=e[11],d=e[12],g=e[13],v=e[14],m=e[15],y=r*s-n*o,x=r*l-i*o,b=r*c-a*o,_=n*l-i*s,w=n*c-a*s,k=i*c-a*l,T=u*g-f*d,A=u*v-h*d,M=u*m-p*d,S=f*v-h*g,E=f*m-p*g,C=h*m-p*v,L=y*C-x*E+b*S+_*M-w*A+k*T;if(!L)return null;return L=1/L,t[0]=(s*C-l*E+c*S)*L,t[1]=(i*E-n*C-a*S)*L,t[2]=(g*k-v*w+m*_)*L,t[3]=(h*w-f*k-p*_)*L,t[4]=(l*M-o*C-c*A)*L,t[5]=(r*C-i*M+a*A)*L,t[6]=(v*b-d*k-m*x)*L,t[7]=(u*k-h*b+p*x)*L,t[8]=(o*E-s*M+c*T)*L,t[9]=(n*M-r*E-a*T)*L,t[10]=(d*w-g*b+m*y)*L,t[11]=(f*b-u*w-p*y)*L,t[12]=(s*A-o*S-l*T)*L,t[13]=(r*S-n*A+i*T)*L,t[14]=(g*x-d*_-v*y)*L,t[15]=(u*_-f*x+h*y)*L,t}},{}],265:[function(t,e,r){var n=t("./identity");e.exports=function(t,e,r,i){var a,o,s,l,c,u,f,h,p,d,g=e[0],v=e[1],m=e[2],y=i[0],x=i[1],b=i[2],_=r[0],w=r[1],k=r[2];if(Math.abs(g-_)<1e-6&&Math.abs(v-w)<1e-6&&Math.abs(m-k)<1e-6)return n(t);f=g-_,h=v-w,p=m-k,d=1/Math.sqrt(f*f+h*h+p*p),a=x*(p*=d)-b*(h*=d),o=b*(f*=d)-y*p,s=y*h-x*f,(d=Math.sqrt(a*a+o*o+s*s))?(a*=d=1/d,o*=d,s*=d):(a=0,o=0,s=0);l=h*s-p*o,c=p*a-f*s,u=f*o-h*a,(d=Math.sqrt(l*l+c*c+u*u))?(l*=d=1/d,c*=d,u*=d):(l=0,c=0,u=0);return t[0]=a,t[1]=l,t[2]=f,t[3]=0,t[4]=o,t[5]=c,t[6]=h,t[7]=0,t[8]=s,t[9]=u,t[10]=p,t[11]=0,t[12]=-(a*g+o*v+s*m),t[13]=-(l*g+c*v+u*m),t[14]=-(f*g+h*v+p*m),t[15]=1,t}},{"./identity":263}],266:[function(t,e,r){e.exports=function(t,e,r){var n=e[0],i=e[1],a=e[2],o=e[3],s=e[4],l=e[5],c=e[6],u=e[7],f=e[8],h=e[9],p=e[10],d=e[11],g=e[12],v=e[13],m=e[14],y=e[15],x=r[0],b=r[1],_=r[2],w=r[3];return t[0]=x*n+b*s+_*f+w*g,t[1]=x*i+b*l+_*h+w*v,t[2]=x*a+b*c+_*p+w*m,t[3]=x*o+b*u+_*d+w*y,x=r[4],b=r[5],_=r[6],w=r[7],t[4]=x*n+b*s+_*f+w*g,t[5]=x*i+b*l+_*h+w*v,t[6]=x*a+b*c+_*p+w*m,t[7]=x*o+b*u+_*d+w*y,x=r[8],b=r[9],_=r[10],w=r[11],t[8]=x*n+b*s+_*f+w*g,t[9]=x*i+b*l+_*h+w*v,t[10]=x*a+b*c+_*p+w*m,t[11]=x*o+b*u+_*d+w*y,x=r[12],b=r[13],_=r[14],w=r[15],t[12]=x*n+b*s+_*f+w*g,t[13]=x*i+b*l+_*h+w*v,t[14]=x*a+b*c+_*p+w*m,t[15]=x*o+b*u+_*d+w*y,t}},{}],267:[function(t,e,r){e.exports=function(t,e,r,n,i,a,o){var s=1/(e-r),l=1/(n-i),c=1/(a-o);return t[0]=-2*s,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=-2*l,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=2*c,t[11]=0,t[12]=(e+r)*s,t[13]=(i+n)*l,t[14]=(o+a)*c,t[15]=1,t}},{}],268:[function(t,e,r){e.exports=function(t,e,r,n,i){var a=1/Math.tan(e/2),o=1/(n-i);return t[0]=a/r,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=a,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=(i+n)*o,t[11]=-1,t[12]=0,t[13]=0,t[14]=2*i*n*o,t[15]=0,t}},{}],269:[function(t,e,r){e.exports=function(t,e,r,n){var i,a,o,s,l,c,u,f,h,p,d,g,v,m,y,x,b,_,w,k,T,A,M,S,E=n[0],C=n[1],L=n[2],z=Math.sqrt(E*E+C*C+L*L);if(Math.abs(z)<1e-6)return null;E*=z=1/z,C*=z,L*=z,i=Math.sin(r),a=Math.cos(r),o=1-a,s=e[0],l=e[1],c=e[2],u=e[3],f=e[4],h=e[5],p=e[6],d=e[7],g=e[8],v=e[9],m=e[10],y=e[11],x=E*E*o+a,b=C*E*o+L*i,_=L*E*o-C*i,w=E*C*o-L*i,k=C*C*o+a,T=L*C*o+E*i,A=E*L*o+C*i,M=C*L*o-E*i,S=L*L*o+a,t[0]=s*x+f*b+g*_,t[1]=l*x+h*b+v*_,t[2]=c*x+p*b+m*_,t[3]=u*x+d*b+y*_,t[4]=s*w+f*k+g*T,t[5]=l*w+h*k+v*T,t[6]=c*w+p*k+m*T,t[7]=u*w+d*k+y*T,t[8]=s*A+f*M+g*S,t[9]=l*A+h*M+v*S,t[10]=c*A+p*M+m*S,t[11]=u*A+d*M+y*S,e!==t&&(t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]);return t}},{}],270:[function(t,e,r){e.exports=function(t,e,r){var n=Math.sin(r),i=Math.cos(r),a=e[4],o=e[5],s=e[6],l=e[7],c=e[8],u=e[9],f=e[10],h=e[11];e!==t&&(t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]);return t[4]=a*i+c*n,t[5]=o*i+u*n,t[6]=s*i+f*n,t[7]=l*i+h*n,t[8]=c*i-a*n,t[9]=u*i-o*n,t[10]=f*i-s*n,t[11]=h*i-l*n,t}},{}],271:[function(t,e,r){e.exports=function(t,e,r){var n=Math.sin(r),i=Math.cos(r),a=e[0],o=e[1],s=e[2],l=e[3],c=e[8],u=e[9],f=e[10],h=e[11];e!==t&&(t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]);return t[0]=a*i-c*n,t[1]=o*i-u*n,t[2]=s*i-f*n,t[3]=l*i-h*n,t[8]=a*n+c*i,t[9]=o*n+u*i,t[10]=s*n+f*i,t[11]=l*n+h*i,t}},{}],272:[function(t,e,r){e.exports=function(t,e,r){var n=Math.sin(r),i=Math.cos(r),a=e[0],o=e[1],s=e[2],l=e[3],c=e[4],u=e[5],f=e[6],h=e[7];e!==t&&(t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]);return t[0]=a*i+c*n,t[1]=o*i+u*n,t[2]=s*i+f*n,t[3]=l*i+h*n,t[4]=c*i-a*n,t[5]=u*i-o*n,t[6]=f*i-s*n,t[7]=h*i-l*n,t}},{}],273:[function(t,e,r){e.exports=function(t,e,r){var n=r[0],i=r[1],a=r[2];return t[0]=e[0]*n,t[1]=e[1]*n,t[2]=e[2]*n,t[3]=e[3]*n,t[4]=e[4]*i,t[5]=e[5]*i,t[6]=e[6]*i,t[7]=e[7]*i,t[8]=e[8]*a,t[9]=e[9]*a,t[10]=e[10]*a,t[11]=e[11]*a,t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t}},{}],274:[function(t,e,r){e.exports=function(t,e,r){var n,i,a,o,s,l,c,u,f,h,p,d,g=r[0],v=r[1],m=r[2];e===t?(t[12]=e[0]*g+e[4]*v+e[8]*m+e[12],t[13]=e[1]*g+e[5]*v+e[9]*m+e[13],t[14]=e[2]*g+e[6]*v+e[10]*m+e[14],t[15]=e[3]*g+e[7]*v+e[11]*m+e[15]):(n=e[0],i=e[1],a=e[2],o=e[3],s=e[4],l=e[5],c=e[6],u=e[7],f=e[8],h=e[9],p=e[10],d=e[11],t[0]=n,t[1]=i,t[2]=a,t[3]=o,t[4]=s,t[5]=l,t[6]=c,t[7]=u,t[8]=f,t[9]=h,t[10]=p,t[11]=d,t[12]=n*g+s*v+f*m+e[12],t[13]=i*g+l*v+h*m+e[13],t[14]=a*g+c*v+p*m+e[14],t[15]=o*g+u*v+d*m+e[15]);return t}},{}],275:[function(t,e,r){e.exports=function(t,e){if(t===e){var r=e[1],n=e[2],i=e[3],a=e[6],o=e[7],s=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=r,t[6]=e[9],t[7]=e[13],t[8]=n,t[9]=a,t[11]=e[14],t[12]=i,t[13]=o,t[14]=s}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t}},{}],276:[function(t,e,r){"use strict";e.exports=function(t,e){switch(e.length){case 0:break;case 1:t[0]=1/e[0];break;case 4:n(t,e);break;case 9:i(t,e);break;case 16:a(t,e);break;default:throw new Error("currently supports matrices up to 4x4")}return t};var n=t("gl-mat2/invert"),i=t("gl-mat3/invert"),a=t("gl-mat4/invert")},{"gl-mat2/invert":256,"gl-mat3/invert":257,"gl-mat4/invert":264}],277:[function(t,e,r){"use strict";var n=t("barycentric"),i=t("polytope-closest-point/lib/closest_point_2d.js");function a(t,e){for(var r=[0,0,0,0],n=0;n<4;++n)for(var i=0;i<4;++i)r[i]+=t[4*n+i]*e[n];return r}function o(t,e,r,n,i){for(var o=a(n,a(r,a(e,[t[0],t[1],t[2],1]))),s=0;s<3;++s)o[s]/=o[3];return[.5*i[0]*(1+o[0]),.5*i[1]*(1-o[1])]}e.exports=function(t,e,r,a,s,l){if(1===t.length)return[0,t[0].slice()];for(var c=new Array(t.length),u=0;u<t.length;++u)c[u]=o(t[u],r,a,s,l);for(var f=0,h=1/0,u=0;u<c.length;++u){for(var p=0,d=0;d<2;++d)p+=Math.pow(c[u][d]-e[d],2);p<h&&(h=p,f=u)}for(var g=function(t,e){if(2===t.length){for(var r=0,a=0,o=0;o<2;++o)r+=Math.pow(e[o]-t[0][o],2),a+=Math.pow(e[o]-t[1][o],2);return r=Math.sqrt(r),a=Math.sqrt(a),r+a<1e-6?[1,0]:[a/(r+a),r/(a+r)]}if(3===t.length){var s=[0,0];return i(t[0],t[1],t[2],e,s),n(t,s)}return[]}(c,e),v=0,u=0;u<3;++u){if(g[u]<-.001||g[u]>1.0001)return null;v+=g[u]}if(Math.abs(v-1)>.001)return null;return[f,function(t,e){for(var r=[0,0,0],n=0;n<t.length;++n)for(var i=t[n],a=e[n],o=0;o<3;++o)r[o]+=a*i[o];return r}(t,g),g]}},{barycentric:66,"polytope-closest-point/lib/closest_point_2d.js":476}],278:[function(t,e,r){var n=t("glslify"),i=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position, normal;\nattribute vec4 color;\nattribute vec2 uv;\n\nuniform mat4 model\n           , view\n           , projection\n           , inverseModel;\nuniform vec3 eyePosition\n           , lightPosition;\n\nvarying vec3 f_normal\n           , f_lightDirection\n           , f_eyeDirection\n           , f_data;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvec4 project(vec3 p) {\n  return projection * view * model * vec4(p, 1.0);\n}\n\nvoid main() {\n  gl_Position      = project(position);\n\n  //Lighting geometry parameters\n  vec4 cameraCoordinate = view * vec4(position , 1.0);\n  cameraCoordinate.xyz /= cameraCoordinate.w;\n  f_lightDirection = lightPosition - cameraCoordinate.xyz;\n  f_eyeDirection   = eyePosition - cameraCoordinate.xyz;\n  f_normal  = normalize((vec4(normal, 0.0) * inverseModel).xyz);\n\n  f_color          = color;\n  f_data           = position;\n  f_uv             = uv;\n}\n"]),a=n(["#extension GL_OES_standard_derivatives : enable\n\nprecision highp float;\n#define GLSLIFY 1\n\nfloat beckmannDistribution(float x, float roughness) {\n  float NdotH = max(x, 0.0001);\n  float cos2Alpha = NdotH * NdotH;\n  float tan2Alpha = (cos2Alpha - 1.0) / cos2Alpha;\n  float roughness2 = roughness * roughness;\n  float denom = 3.141592653589793 * roughness2 * cos2Alpha * cos2Alpha;\n  return exp(tan2Alpha / roughness2) / denom;\n}\n\nfloat cookTorranceSpecular(\n  vec3 lightDirection,\n  vec3 viewDirection,\n  vec3 surfaceNormal,\n  float roughness,\n  float fresnel) {\n\n  float VdotN = max(dot(viewDirection, surfaceNormal), 0.0);\n  float LdotN = max(dot(lightDirection, surfaceNormal), 0.0);\n\n  //Half angle vector\n  vec3 H = normalize(lightDirection + viewDirection);\n\n  //Geometric term\n  float NdotH = max(dot(surfaceNormal, H), 0.0);\n  float VdotH = max(dot(viewDirection, H), 0.000001);\n  float LdotH = max(dot(lightDirection, H), 0.000001);\n  float G1 = (2.0 * NdotH * VdotN) / VdotH;\n  float G2 = (2.0 * NdotH * LdotN) / LdotH;\n  float G = min(1.0, min(G1, G2));\n  \n  //Distribution term\n  float D = beckmannDistribution(NdotH, roughness);\n\n  //Fresnel term\n  float F = pow(1.0 - VdotN, fresnel);\n\n  //Multiply terms and done\n  return  G * F * D / max(3.14159265 * VdotN, 0.000001);\n}\n\n//#pragma glslify: beckmann = require(glsl-specular-beckmann) // used in gl-surface3d\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float roughness\n            , fresnel\n            , kambient\n            , kdiffuse\n            , kspecular;\nuniform sampler2D texture;\n\nvarying vec3 f_normal\n           , f_lightDirection\n           , f_eyeDirection\n           , f_data;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n  if (f_color.a == 0.0 ||\n    outOfRange(clipBounds[0], clipBounds[1], f_data)\n  ) discard;\n\n  vec3 N = normalize(f_normal);\n  vec3 L = normalize(f_lightDirection);\n  vec3 V = normalize(f_eyeDirection);\n\n  if(gl_FrontFacing) {\n    N = -N;\n  }\n\n  float specular = min(1.0, max(0.0, cookTorranceSpecular(L, V, N, roughness, fresnel)));\n  //float specular = max(0.0, beckmann(L, V, N, roughness)); // used in gl-surface3d\n\n  float diffuse  = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n  vec4 surfaceColor = vec4(f_color.rgb, 1.0) * texture2D(texture, f_uv);\n  vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular,  1.0);\n\n  gl_FragColor = litColor * f_color.a;\n}\n"]),o=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 uv;\n\nuniform mat4 model, view, projection;\n\nvarying vec4 f_color;\nvarying vec3 f_data;\nvarying vec2 f_uv;\n\nvoid main() {\n  gl_Position = projection * view * model * vec4(position, 1.0);\n  f_color = color;\n  f_data  = position;\n  f_uv    = uv;\n}"]),s=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform sampler2D texture;\nuniform float opacity;\n\nvarying vec4 f_color;\nvarying vec3 f_data;\nvarying vec2 f_uv;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], f_data)) discard;\n\n  gl_FragColor = f_color * texture2D(texture, f_uv) * opacity;\n}"]),l=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 uv;\nattribute float pointSize;\n\nuniform mat4 model, view, projection;\nuniform vec3 clipBounds[2];\n\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n    gl_Position = vec4(0.0, 0.0 ,0.0 ,0.0);\n  } else {\n    gl_Position = projection * view * model * vec4(position, 1.0);\n  }\n  gl_PointSize = pointSize;\n  f_color = color;\n  f_uv = uv;\n}"]),c=n(["precision highp float;\n#define GLSLIFY 1\n\nuniform sampler2D texture;\nuniform float opacity;\n\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n  vec2 pointR = gl_PointCoord.xy - vec2(0.5, 0.5);\n  if(dot(pointR, pointR) > 0.25) {\n    discard;\n  }\n  gl_FragColor = f_color * texture2D(texture, f_uv) * opacity;\n}"]),u=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n  gl_Position = projection * view * model * vec4(position, 1.0);\n  f_id        = id;\n  f_position  = position;\n}"]),f=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3  clipBounds[2];\nuniform float pickId;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n\n  gl_FragColor = vec4(pickId, f_id.xyz);\n}"]),h=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3  position;\nattribute float pointSize;\nattribute vec4  id;\n\nuniform mat4 model, view, projection;\nuniform vec3 clipBounds[2];\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n    gl_Position = vec4(0.0, 0.0, 0.0, 0.0);\n  } else {\n    gl_Position  = projection * view * model * vec4(position, 1.0);\n    gl_PointSize = pointSize;\n  }\n  f_id         = id;\n  f_position   = position;\n}"]),p=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec3 position;\n\nuniform mat4 model, view, projection;\n\nvoid main() {\n  gl_Position = projection * view * model * vec4(position, 1.0);\n}"]),d=n(["precision highp float;\n#define GLSLIFY 1\n\nuniform vec3 contourColor;\n\nvoid main() {\n  gl_FragColor = vec4(contourColor, 1.0);\n}\n"]);r.meshShader={vertex:i,fragment:a,attributes:[{name:"position",type:"vec3"},{name:"normal",type:"vec3"},{name:"color",type:"vec4"},{name:"uv",type:"vec2"}]},r.wireShader={vertex:o,fragment:s,attributes:[{name:"position",type:"vec3"},{name:"color",type:"vec4"},{name:"uv",type:"vec2"}]},r.pointShader={vertex:l,fragment:c,attributes:[{name:"position",type:"vec3"},{name:"color",type:"vec4"},{name:"uv",type:"vec2"},{name:"pointSize",type:"float"}]},r.pickShader={vertex:u,fragment:f,attributes:[{name:"position",type:"vec3"},{name:"id",type:"vec4"}]},r.pointPickShader={vertex:h,fragment:f,attributes:[{name:"position",type:"vec3"},{name:"pointSize",type:"float"},{name:"id",type:"vec4"}]},r.contourShader={vertex:p,fragment:d,attributes:[{name:"position",type:"vec3"}]}},{glslify:404}],279:[function(t,e,r){"use strict";var n=t("gl-shader"),i=t("gl-buffer"),a=t("gl-vao"),o=t("gl-texture2d"),s=t("normals"),l=t("gl-mat4/multiply"),c=t("gl-mat4/invert"),u=t("ndarray"),f=t("colormap"),h=t("simplicial-complex-contour"),p=t("typedarray-pool"),d=t("./lib/shaders"),g=t("./lib/closest-point"),v=d.meshShader,m=d.wireShader,y=d.pointShader,x=d.pickShader,b=d.pointPickShader,_=d.contourShader,w=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];function k(t,e,r,n,i,a,o,s,l,c,u,f,h,p,d,g,v,m,y,x,b,_,k,T,A,M,S){this.gl=t,this.pixelRatio=1,this.cells=[],this.positions=[],this.intensity=[],this.texture=e,this.dirty=!0,this.triShader=r,this.lineShader=n,this.pointShader=i,this.pickShader=a,this.pointPickShader=o,this.contourShader=s,this.trianglePositions=l,this.triangleColors=u,this.triangleNormals=h,this.triangleUVs=f,this.triangleIds=c,this.triangleVAO=p,this.triangleCount=0,this.lineWidth=1,this.edgePositions=d,this.edgeColors=v,this.edgeUVs=m,this.edgeIds=g,this.edgeVAO=y,this.edgeCount=0,this.pointPositions=x,this.pointColors=_,this.pointUVs=k,this.pointSizes=T,this.pointIds=b,this.pointVAO=A,this.pointCount=0,this.contourLineWidth=1,this.contourPositions=M,this.contourVAO=S,this.contourCount=0,this.contourColor=[0,0,0],this.contourEnable=!0,this.pickId=1,this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],this.clipBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.lightPosition=[1e5,1e5,0],this.ambientLight=.8,this.diffuseLight=.8,this.specularLight=2,this.roughness=.5,this.fresnel=1.5,this.opacity=1,this.hasAlpha=!1,this.opacityscale=!1,this._model=w,this._view=w,this._projection=w,this._resolution=[1,1]}var T=k.prototype;function A(t,e){if(!e)return 1;if(!e.length)return 1;for(var r=0;r<e.length;++r){if(e.length<2)return 1;if(e[r][0]===t)return e[r][1];if(e[r][0]>t&&r>0){var n=(e[r][0]-t)/(e[r][0]-e[r-1][0]);return e[r][1]*(1-n)+n*e[r-1][1]}}return 1}function M(t){var e=n(t,y.vertex,y.fragment);return e.attributes.position.location=0,e.attributes.color.location=2,e.attributes.uv.location=3,e.attributes.pointSize.location=4,e}function S(t){var e=n(t,x.vertex,x.fragment);return e.attributes.position.location=0,e.attributes.id.location=1,e}function E(t){var e=n(t,b.vertex,b.fragment);return e.attributes.position.location=0,e.attributes.id.location=1,e.attributes.pointSize.location=4,e}function C(t){var e=n(t,_.vertex,_.fragment);return e.attributes.position.location=0,e}T.isOpaque=function(){return!this.hasAlpha},T.isTransparent=function(){return this.hasAlpha},T.pickSlots=1,T.setPickBase=function(t){this.pickId=t},T.highlight=function(t){if(t&&this.contourEnable){for(var e=h(this.cells,this.intensity,t.intensity),r=e.cells,n=e.vertexIds,i=e.vertexWeights,a=r.length,o=p.mallocFloat32(6*a),s=0,l=0;l<a;++l)for(var c=r[l],u=0;u<2;++u){var f=c[0];2===c.length&&(f=c[u]);for(var d=n[f][0],g=n[f][1],v=i[f],m=1-v,y=this.positions[d],x=this.positions[g],b=0;b<3;++b)o[s++]=v*y[b]+m*x[b]}this.contourCount=s/3|0,this.contourPositions.update(o.subarray(0,s)),p.free(o)}else this.contourCount=0},T.update=function(t){t=t||{};var e=this.gl;this.dirty=!0,"contourEnable"in t&&(this.contourEnable=t.contourEnable),"contourColor"in t&&(this.contourColor=t.contourColor),"lineWidth"in t&&(this.lineWidth=t.lineWidth),"lightPosition"in t&&(this.lightPosition=t.lightPosition),this.hasAlpha=!1,"opacity"in t&&(this.opacity=t.opacity,this.opacity<1&&(this.hasAlpha=!0)),"opacityscale"in t&&(this.opacityscale=t.opacityscale,this.hasAlpha=!0),"ambient"in t&&(this.ambientLight=t.ambient),"diffuse"in t&&(this.diffuseLight=t.diffuse),"specular"in t&&(this.specularLight=t.specular),"roughness"in t&&(this.roughness=t.roughness),"fresnel"in t&&(this.fresnel=t.fresnel),t.texture?(this.texture.dispose(),this.texture=o(e,t.texture)):t.colormap&&(this.texture.shape=[256,256],this.texture.minFilter=e.LINEAR_MIPMAP_LINEAR,this.texture.magFilter=e.LINEAR,this.texture.setPixels(function(t,e){for(var r=f({colormap:t,nshades:256,format:"rgba"}),n=new Uint8Array(1024),i=0;i<256;++i){for(var a=r[i],o=0;o<3;++o)n[4*i+o]=a[o];n[4*i+3]=e?255*A(i/255,e):255*a[3]}return u(n,[256,256,4],[4,0,1])}(t.colormap,this.opacityscale)),this.texture.generateMipmap());var r=t.cells,n=t.positions;if(n&&r){var i=[],a=[],l=[],c=[],h=[],p=[],d=[],g=[],v=[],m=[],y=[],x=[],b=[],_=[];this.cells=r,this.positions=n;var w=t.vertexNormals,k=t.cellNormals,T=void 0===t.vertexNormalsEpsilon?1e-6:t.vertexNormalsEpsilon,M=void 0===t.faceNormalsEpsilon?1e-6:t.faceNormalsEpsilon;t.useFacetNormals&&!k&&(k=s.faceNormals(r,n,M)),k||w||(w=s.vertexNormals(r,n,T));var S=t.vertexColors,E=t.cellColors,C=t.meshColor||[1,1,1,1],L=t.vertexUVs,z=t.vertexIntensity,O=t.cellUVs,I=t.cellIntensity,D=1/0,P=-1/0;if(!L&&!O)if(z)if(t.vertexIntensityBounds)D=+t.vertexIntensityBounds[0],P=+t.vertexIntensityBounds[1];else for(var R=0;R<z.length;++R){var F=z[R];D=Math.min(D,F),P=Math.max(P,F)}else if(I)for(R=0;R<I.length;++R){F=I[R];D=Math.min(D,F),P=Math.max(P,F)}else for(R=0;R<n.length;++R){F=n[R][2];D=Math.min(D,F),P=Math.max(P,F)}this.intensity=z||(I?function(t,e,r){for(var n=new Array(e),i=0;i<e;++i)n[i]=0;var a=t.length;for(i=0;i<a;++i)for(var o=t[i],s=0;s<o.length;++s)n[o[s]]=r[i];return n}(r,n.length,I):function(t){for(var e=t.length,r=new Array(e),n=0;n<e;++n)r[n]=t[n][2];return r}(n));var B=t.pointSizes,N=t.pointSize||1;this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]];for(R=0;R<n.length;++R)for(var j=n[R],V=0;V<3;++V)!isNaN(j[V])&&isFinite(j[V])&&(this.bounds[0][V]=Math.min(this.bounds[0][V],j[V]),this.bounds[1][V]=Math.max(this.bounds[1][V],j[V]));var U=0,H=0,q=0;t:for(R=0;R<r.length;++R){var G=r[R];switch(G.length){case 1:for(j=n[W=G[0]],V=0;V<3;++V)if(isNaN(j[V])||!isFinite(j[V]))continue t;m.push(j[0],j[1],j[2]),X=S?S[W]:E?E[R]:C,this.opacityscale&&z?a.push(X[0],X[1],X[2],this.opacity*A((z[W]-D)/(P-D),this.opacityscale)):3===X.length?y.push(X[0],X[1],X[2],this.opacity):(y.push(X[0],X[1],X[2],X[3]*this.opacity),!this.hasAlpha&&X[3]<1&&(this.hasAlpha=!0)),Z=L?L[W]:z?[(z[W]-D)/(P-D),0]:O?O[R]:I?[(I[R]-D)/(P-D),0]:[(j[2]-D)/(P-D),0],x.push(Z[0],Z[1]),B?b.push(B[W]):b.push(N),_.push(R),q+=1;break;case 2:for(V=0;V<2;++V){j=n[W=G[V]];for(var Y=0;Y<3;++Y)if(isNaN(j[Y])||!isFinite(j[Y]))continue t}for(V=0;V<2;++V){j=n[W=G[V]];p.push(j[0],j[1],j[2]),X=S?S[W]:E?E[R]:C,this.opacityscale&&z?a.push(X[0],X[1],X[2],this.opacity*A((z[W]-D)/(P-D),this.opacityscale)):3===X.length?d.push(X[0],X[1],X[2],this.opacity):(d.push(X[0],X[1],X[2],X[3]*this.opacity),!this.hasAlpha&&X[3]<1&&(this.hasAlpha=!0)),Z=L?L[W]:z?[(z[W]-D)/(P-D),0]:O?O[R]:I?[(I[R]-D)/(P-D),0]:[(j[2]-D)/(P-D),0],g.push(Z[0],Z[1]),v.push(R)}H+=1;break;case 3:for(V=0;V<3;++V)for(j=n[W=G[V]],Y=0;Y<3;++Y)if(isNaN(j[Y])||!isFinite(j[Y]))continue t;for(V=0;V<3;++V){var W,X,Z,$;j=n[W=G[2-V]];i.push(j[0],j[1],j[2]),X=S?S[W]:E?E[R]:C,this.opacityscale&&z?a.push(X[0],X[1],X[2],this.opacity*A((z[W]-D)/(P-D),this.opacityscale)):3===X.length?a.push(X[0],X[1],X[2],this.opacity):(a.push(X[0],X[1],X[2],X[3]*this.opacity),!this.hasAlpha&&X[3]<1&&(this.hasAlpha=!0)),Z=L?L[W]:z?[(z[W]-D)/(P-D),0]:O?O[R]:I?[(I[R]-D)/(P-D),0]:[(j[2]-D)/(P-D),0],c.push(Z[0],Z[1]),$=w?w[W]:k[R],l.push($[0],$[1],$[2]),h.push(R)}U+=1}}this.pointCount=q,this.edgeCount=H,this.triangleCount=U,this.pointPositions.update(m),this.pointColors.update(y),this.pointUVs.update(x),this.pointSizes.update(b),this.pointIds.update(new Uint32Array(_)),this.edgePositions.update(p),this.edgeColors.update(d),this.edgeUVs.update(g),this.edgeIds.update(new Uint32Array(v)),this.trianglePositions.update(i),this.triangleColors.update(a),this.triangleUVs.update(c),this.triangleNormals.update(l),this.triangleIds.update(new Uint32Array(h))}},T.drawTransparent=T.draw=function(t){t=t||{};for(var e=this.gl,r=t.model||w,n=t.view||w,i=t.projection||w,a=[[-1e6,-1e6,-1e6],[1e6,1e6,1e6]],o=0;o<3;++o)a[0][o]=Math.max(a[0][o],this.clipBounds[0][o]),a[1][o]=Math.min(a[1][o],this.clipBounds[1][o]);var s={model:r,view:n,projection:i,inverseModel:w.slice(),clipBounds:a,kambient:this.ambientLight,kdiffuse:this.diffuseLight,kspecular:this.specularLight,roughness:this.roughness,fresnel:this.fresnel,eyePosition:[0,0,0],lightPosition:[0,0,0],contourColor:this.contourColor,texture:0};s.inverseModel=c(s.inverseModel,s.model),e.disable(e.CULL_FACE),this.texture.bind(0);var u=new Array(16);l(u,s.view,s.model),l(u,s.projection,u),c(u,u);for(o=0;o<3;++o)s.eyePosition[o]=u[12+o]/u[15];var f,h=u[15];for(o=0;o<3;++o)h+=this.lightPosition[o]*u[4*o+3];for(o=0;o<3;++o){for(var p=u[12+o],d=0;d<3;++d)p+=u[4*d+o]*this.lightPosition[d];s.lightPosition[o]=p/h}this.triangleCount>0&&((f=this.triShader).bind(),f.uniforms=s,this.triangleVAO.bind(),e.drawArrays(e.TRIANGLES,0,3*this.triangleCount),this.triangleVAO.unbind());this.edgeCount>0&&this.lineWidth>0&&((f=this.lineShader).bind(),f.uniforms=s,this.edgeVAO.bind(),e.lineWidth(this.lineWidth*this.pixelRatio),e.drawArrays(e.LINES,0,2*this.edgeCount),this.edgeVAO.unbind());this.pointCount>0&&((f=this.pointShader).bind(),f.uniforms=s,this.pointVAO.bind(),e.drawArrays(e.POINTS,0,this.pointCount),this.pointVAO.unbind());this.contourEnable&&this.contourCount>0&&this.contourLineWidth>0&&((f=this.contourShader).bind(),f.uniforms=s,this.contourVAO.bind(),e.drawArrays(e.LINES,0,this.contourCount),this.contourVAO.unbind())},T.drawPick=function(t){t=t||{};for(var e=this.gl,r=t.model||w,n=t.view||w,i=t.projection||w,a=[[-1e6,-1e6,-1e6],[1e6,1e6,1e6]],o=0;o<3;++o)a[0][o]=Math.max(a[0][o],this.clipBounds[0][o]),a[1][o]=Math.min(a[1][o],this.clipBounds[1][o]);this._model=[].slice.call(r),this._view=[].slice.call(n),this._projection=[].slice.call(i),this._resolution=[e.drawingBufferWidth,e.drawingBufferHeight];var s,l={model:r,view:n,projection:i,clipBounds:a,pickId:this.pickId/255};((s=this.pickShader).bind(),s.uniforms=l,this.triangleCount>0&&(this.triangleVAO.bind(),e.drawArrays(e.TRIANGLES,0,3*this.triangleCount),this.triangleVAO.unbind()),this.edgeCount>0&&(this.edgeVAO.bind(),e.lineWidth(this.lineWidth*this.pixelRatio),e.drawArrays(e.LINES,0,2*this.edgeCount),this.edgeVAO.unbind()),this.pointCount>0)&&((s=this.pointPickShader).bind(),s.uniforms=l,this.pointVAO.bind(),e.drawArrays(e.POINTS,0,this.pointCount),this.pointVAO.unbind())},T.pick=function(t){if(!t)return null;if(t.id!==this.pickId)return null;for(var e=t.value[0]+256*t.value[1]+65536*t.value[2],r=this.cells[e],n=this.positions,i=new Array(r.length),a=0;a<r.length;++a)i[a]=n[r[a]];var o=g(i,[t.coord[0],this._resolution[1]-t.coord[1]],this._model,this._view,this._projection,this._resolution);if(!o)return null;var s=o[2],l=0;for(a=0;a<r.length;++a)l+=s[a]*this.intensity[r[a]];return{position:o[1],index:r[o[0]],cell:r,cellId:e,intensity:l,dataCoordinate:this.positions[r[o[0]]]}},T.dispose=function(){this.texture.dispose(),this.triShader.dispose(),this.lineShader.dispose(),this.pointShader.dispose(),this.pickShader.dispose(),this.pointPickShader.dispose(),this.triangleVAO.dispose(),this.trianglePositions.dispose(),this.triangleColors.dispose(),this.triangleUVs.dispose(),this.triangleNormals.dispose(),this.triangleIds.dispose(),this.edgeVAO.dispose(),this.edgePositions.dispose(),this.edgeColors.dispose(),this.edgeUVs.dispose(),this.edgeIds.dispose(),this.pointVAO.dispose(),this.pointPositions.dispose(),this.pointColors.dispose(),this.pointUVs.dispose(),this.pointSizes.dispose(),this.pointIds.dispose(),this.contourVAO.dispose(),this.contourPositions.dispose(),this.contourShader.dispose()},e.exports=function(t,e){if(1===arguments.length&&(t=(e=t).gl),!(t.getExtension("OES_standard_derivatives")||t.getExtension("MOZ_OES_standard_derivatives")||t.getExtension("WEBKIT_OES_standard_derivatives")))throw new Error("derivatives not supported");var r=function(t){var e=n(t,v.vertex,v.fragment);return e.attributes.position.location=0,e.attributes.color.location=2,e.attributes.uv.location=3,e.attributes.normal.location=4,e}(t),s=function(t){var e=n(t,m.vertex,m.fragment);return e.attributes.position.location=0,e.attributes.color.location=2,e.attributes.uv.location=3,e}(t),l=M(t),c=S(t),f=E(t),h=C(t),p=o(t,u(new Uint8Array([255,255,255,255]),[1,1,4]));p.generateMipmap(),p.minFilter=t.LINEAR_MIPMAP_LINEAR,p.magFilter=t.LINEAR;var d=i(t),g=i(t),y=i(t),x=i(t),b=i(t),_=a(t,[{buffer:d,type:t.FLOAT,size:3},{buffer:b,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:g,type:t.FLOAT,size:4},{buffer:y,type:t.FLOAT,size:2},{buffer:x,type:t.FLOAT,size:3}]),w=i(t),T=i(t),A=i(t),L=i(t),z=a(t,[{buffer:w,type:t.FLOAT,size:3},{buffer:L,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:T,type:t.FLOAT,size:4},{buffer:A,type:t.FLOAT,size:2}]),O=i(t),I=i(t),D=i(t),P=i(t),R=i(t),F=a(t,[{buffer:O,type:t.FLOAT,size:3},{buffer:R,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:I,type:t.FLOAT,size:4},{buffer:D,type:t.FLOAT,size:2},{buffer:P,type:t.FLOAT,size:1}]),B=i(t),N=new k(t,p,r,s,l,c,f,h,d,b,g,y,x,_,w,L,T,A,z,O,R,I,D,P,F,B,a(t,[{buffer:B,type:t.FLOAT,size:3}]));return N.update(e),N}},{"./lib/closest-point":277,"./lib/shaders":278,colormap:119,"gl-buffer":240,"gl-mat4/invert":264,"gl-mat4/multiply":266,"gl-shader":300,"gl-texture2d":317,"gl-vao":322,ndarray:445,normals:448,"simplicial-complex-contour":505,"typedarray-pool":532}],280:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl,r=n(e,[0,0,0,1,1,0,1,1]),s=i(e,a.boxVert,a.lineFrag);return new o(t,r,s)};var n=t("gl-buffer"),i=t("gl-shader"),a=t("./shaders");function o(t,e,r){this.plot=t,this.vbo=e,this.shader=r}var s,l,c=o.prototype;c.bind=function(){var t=this.shader;this.vbo.bind(),this.shader.bind(),t.attributes.coord.pointer(),t.uniforms.screenBox=this.plot.screenBox},c.drawBox=(s=[0,0],l=[0,0],function(t,e,r,n,i){var a=this.plot,o=this.shader,c=a.gl;s[0]=t,s[1]=e,l[0]=r,l[1]=n,o.uniforms.lo=s,o.uniforms.hi=l,o.uniforms.color=i,c.drawArrays(c.TRIANGLE_STRIP,0,4)}),c.dispose=function(){this.vbo.dispose(),this.shader.dispose()}},{"./shaders":283,"gl-buffer":240,"gl-shader":300}],281:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl,r=n(e),a=i(e,o.gridVert,o.gridFrag),l=i(e,o.tickVert,o.gridFrag);return new s(t,r,a,l)};var n=t("gl-buffer"),i=t("gl-shader"),a=t("binary-search-bounds"),o=t("./shaders");function s(t,e,r,n){this.plot=t,this.vbo=e,this.shader=r,this.tickShader=n,this.ticks=[[],[]]}function l(t,e){return t-e}var c,u,f,h,p,d=s.prototype;d.draw=(c=[0,0],u=[0,0],f=[0,0],function(){for(var t=this.plot,e=this.vbo,r=this.shader,n=this.ticks,i=t.gl,a=t._tickBounds,o=t.dataBox,s=t.viewBox,l=t.gridLineWidth,h=t.gridLineColor,p=t.gridLineEnable,d=t.pixelRatio,g=0;g<2;++g){var v=a[g],m=a[g+2]-v,y=.5*(o[g+2]+o[g]),x=o[g+2]-o[g];u[g]=2*m/x,c[g]=2*(v-y)/x}r.bind(),e.bind(),r.attributes.dataCoord.pointer(),r.uniforms.dataShift=c,r.uniforms.dataScale=u;var b=0;for(g=0;g<2;++g){f[0]=f[1]=0,f[g]=1,r.uniforms.dataAxis=f,r.uniforms.lineWidth=l[g]/(s[g+2]-s[g])*d,r.uniforms.color=h[g];var _=6*n[g].length;p[g]&&_&&i.drawArrays(i.TRIANGLES,b,_),b+=_}}),d.drawTickMarks=function(){var t=[0,0],e=[0,0],r=[1,0],n=[0,1],i=[0,0],o=[0,0];return function(){for(var s=this.plot,c=this.vbo,u=this.tickShader,f=this.ticks,h=s.gl,p=s._tickBounds,d=s.dataBox,g=s.viewBox,v=s.pixelRatio,m=s.screenBox,y=m[2]-m[0],x=m[3]-m[1],b=g[2]-g[0],_=g[3]-g[1],w=0;w<2;++w){var k=p[w],T=p[w+2]-k,A=.5*(d[w+2]+d[w]),M=d[w+2]-d[w];e[w]=2*T/M,t[w]=2*(k-A)/M}e[0]*=b/y,t[0]*=b/y,e[1]*=_/x,t[1]*=_/x,u.bind(),c.bind(),u.attributes.dataCoord.pointer();var S=u.uniforms;S.dataShift=t,S.dataScale=e;var E=s.tickMarkLength,C=s.tickMarkWidth,L=s.tickMarkColor,z=6*f[0].length,O=Math.min(a.ge(f[0],(d[0]-p[0])/(p[2]-p[0]),l),f[0].length),I=Math.min(a.gt(f[0],(d[2]-p[0])/(p[2]-p[0]),l),f[0].length),D=0+6*O,P=6*Math.max(0,I-O),R=Math.min(a.ge(f[1],(d[1]-p[1])/(p[3]-p[1]),l),f[1].length),F=Math.min(a.gt(f[1],(d[3]-p[1])/(p[3]-p[1]),l),f[1].length),B=z+6*R,N=6*Math.max(0,F-R);i[0]=2*(g[0]-E[1])/y-1,i[1]=(g[3]+g[1])/x-1,o[0]=E[1]*v/y,o[1]=C[1]*v/x,N&&(S.color=L[1],S.tickScale=o,S.dataAxis=n,S.screenOffset=i,h.drawArrays(h.TRIANGLES,B,N)),i[0]=(g[2]+g[0])/y-1,i[1]=2*(g[1]-E[0])/x-1,o[0]=C[0]*v/y,o[1]=E[0]*v/x,P&&(S.color=L[0],S.tickScale=o,S.dataAxis=r,S.screenOffset=i,h.drawArrays(h.TRIANGLES,D,P)),i[0]=2*(g[2]+E[3])/y-1,i[1]=(g[3]+g[1])/x-1,o[0]=E[3]*v/y,o[1]=C[3]*v/x,N&&(S.color=L[3],S.tickScale=o,S.dataAxis=n,S.screenOffset=i,h.drawArrays(h.TRIANGLES,B,N)),i[0]=(g[2]+g[0])/y-1,i[1]=2*(g[3]+E[2])/x-1,o[0]=C[2]*v/y,o[1]=E[2]*v/x,P&&(S.color=L[2],S.tickScale=o,S.dataAxis=r,S.screenOffset=i,h.drawArrays(h.TRIANGLES,D,P))}}(),d.update=(h=[1,1,-1,-1,1,-1],p=[1,-1,1,1,-1,-1],function(t){for(var e=t.ticks,r=t.bounds,n=new Float32Array(18*(e[0].length+e[1].length)),i=(this.plot.zeroLineEnable,0),a=[[],[]],o=0;o<2;++o)for(var s=a[o],l=e[o],c=r[o],u=r[o+2],f=0;f<l.length;++f){var d=(l[f].x-c)/(u-c);s.push(d);for(var g=0;g<6;++g)n[i++]=d,n[i++]=h[g],n[i++]=p[g]}this.ticks=a,this.vbo.update(n)}),d.dispose=function(){this.vbo.dispose(),this.shader.dispose(),this.tickShader.dispose()}},{"./shaders":283,"binary-search-bounds":285,"gl-buffer":240,"gl-shader":300}],282:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl,r=n(e,[-1,-1,-1,1,1,-1,1,1]),s=i(e,a.lineVert,a.lineFrag);return new o(t,r,s)};var n=t("gl-buffer"),i=t("gl-shader"),a=t("./shaders");function o(t,e,r){this.plot=t,this.vbo=e,this.shader=r}var s,l,c=o.prototype;c.bind=function(){var t=this.shader;this.vbo.bind(),this.shader.bind(),t.attributes.coord.pointer(),t.uniforms.screenBox=this.plot.screenBox},c.drawLine=(s=[0,0],l=[0,0],function(t,e,r,n,i,a){var o=this.plot,c=this.shader,u=o.gl;s[0]=t,s[1]=e,l[0]=r,l[1]=n,c.uniforms.start=s,c.uniforms.end=l,c.uniforms.width=i*o.pixelRatio,c.uniforms.color=a,u.drawArrays(u.TRIANGLE_STRIP,0,4)}),c.dispose=function(){this.vbo.dispose(),this.shader.dispose()}},{"./shaders":283,"gl-buffer":240,"gl-shader":300}],283:[function(t,e,r){"use strict";var n=t("glslify"),i=n(["precision lowp float;\n#define GLSLIFY 1\nuniform vec4 color;\nvoid main() {\n  gl_FragColor = vec4(color.xyz * color.w, color.w);\n}\n"]);e.exports={lineVert:n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 coord;\n\nuniform vec4 screenBox;\nuniform vec2 start, end;\nuniform float width;\n\nvec2 perp(vec2 v) {\n  return vec2(v.y, -v.x);\n}\n\nvec2 screen(vec2 v) {\n  return 2.0 * (v - screenBox.xy) / (screenBox.zw - screenBox.xy) - 1.0;\n}\n\nvoid main() {\n  vec2 delta = normalize(perp(start - end));\n  vec2 offset = mix(start, end, 0.5 * (coord.y+1.0));\n  gl_Position = vec4(screen(offset + 0.5 * width * delta * coord.x), 0, 1);\n}\n"]),lineFrag:i,textVert:n(["#define GLSLIFY 1\nattribute vec3 textCoordinate;\n\nuniform vec2 dataScale, dataShift, dataAxis, screenOffset, textScale;\nuniform float angle;\n\nvoid main() {\n  float dataOffset  = textCoordinate.z;\n  vec2 glyphOffset  = textCoordinate.xy;\n  mat2 glyphMatrix = mat2(cos(angle), sin(angle), -sin(angle), cos(angle));\n  vec2 screenCoordinate = dataAxis * (dataScale * dataOffset + dataShift) +\n    glyphMatrix * glyphOffset * textScale + screenOffset;\n  gl_Position = vec4(screenCoordinate, 0, 1);\n}\n"]),textFrag:i,gridVert:n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec3 dataCoord;\n\nuniform vec2 dataAxis, dataShift, dataScale;\nuniform float lineWidth;\n\nvoid main() {\n  vec2 pos = dataAxis * (dataScale * dataCoord.x + dataShift);\n  pos += 10.0 * dataCoord.y * vec2(dataAxis.y, -dataAxis.x) + dataCoord.z * lineWidth;\n  gl_Position = vec4(pos, 0, 1);\n}\n"]),gridFrag:i,boxVert:n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 coord;\n\nuniform vec4 screenBox;\nuniform vec2 lo, hi;\n\nvec2 screen(vec2 v) {\n  return 2.0 * (v - screenBox.xy) / (screenBox.zw - screenBox.xy) - 1.0;\n}\n\nvoid main() {\n  gl_Position = vec4(screen(mix(lo, hi, coord)), 0, 1);\n}\n"]),tickVert:n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec3 dataCoord;\n\nuniform vec2 dataAxis, dataShift, dataScale, screenOffset, tickScale;\n\nvoid main() {\n  vec2 pos = dataAxis * (dataScale * dataCoord.x + dataShift);\n  gl_Position = vec4(pos + tickScale*dataCoord.yz + screenOffset, 0, 1);\n}\n"])}},{glslify:404}],284:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl,r=n(e),a=i(e,s.textVert,s.textFrag);return new l(t,r,a)};var n=t("gl-buffer"),i=t("gl-shader"),a=t("text-cache"),o=t("binary-search-bounds"),s=t("./shaders");function l(t,e,r){this.plot=t,this.vbo=e,this.shader=r,this.tickOffset=[[],[]],this.tickX=[[],[]],this.labelOffset=[0,0],this.labelCount=[0,0]}var c,u,f,h,p,d,g=l.prototype;g.drawTicks=(c=[0,0],u=[0,0],f=[0,0],function(t){var e=this.plot,r=this.shader,n=this.tickX[t],i=this.tickOffset[t],a=e.gl,s=e.viewBox,l=e.dataBox,h=e.screenBox,p=e.pixelRatio,d=e.tickEnable,g=e.tickPad,v=e.tickColor,m=e.tickAngle,y=e.labelEnable,x=e.labelPad,b=e.labelColor,_=e.labelAngle,w=this.labelOffset[t],k=this.labelCount[t],T=o.lt(n,l[t]),A=o.le(n,l[t+2]);c[0]=c[1]=0,c[t]=1,u[t]=(s[2+t]+s[t])/(h[2+t]-h[t])-1;var M=2/h[2+(1^t)]-h[1^t];u[1^t]=M*s[1^t]-1,d[t]&&(u[1^t]-=M*p*g[t],T<A&&i[A]>i[T]&&(r.uniforms.dataAxis=c,r.uniforms.screenOffset=u,r.uniforms.color=v[t],r.uniforms.angle=m[t],a.drawArrays(a.TRIANGLES,i[T],i[A]-i[T]))),y[t]&&k&&(u[1^t]-=M*p*x[t],r.uniforms.dataAxis=f,r.uniforms.screenOffset=u,r.uniforms.color=b[t],r.uniforms.angle=_[t],a.drawArrays(a.TRIANGLES,w,k)),u[1^t]=M*s[2+(1^t)]-1,d[t+2]&&(u[1^t]+=M*p*g[t+2],T<A&&i[A]>i[T]&&(r.uniforms.dataAxis=c,r.uniforms.screenOffset=u,r.uniforms.color=v[t+2],r.uniforms.angle=m[t+2],a.drawArrays(a.TRIANGLES,i[T],i[A]-i[T]))),y[t+2]&&k&&(u[1^t]+=M*p*x[t+2],r.uniforms.dataAxis=f,r.uniforms.screenOffset=u,r.uniforms.color=b[t+2],r.uniforms.angle=_[t+2],a.drawArrays(a.TRIANGLES,w,k))}),g.drawTitle=function(){var t=[0,0],e=[0,0];return function(){var r=this.plot,n=this.shader,i=r.gl,a=r.screenBox,o=r.titleCenter,s=r.titleAngle,l=r.titleColor,c=r.pixelRatio;if(this.titleCount){for(var u=0;u<2;++u)e[u]=2*(o[u]*c-a[u])/(a[2+u]-a[u])-1;n.bind(),n.uniforms.dataAxis=t,n.uniforms.screenOffset=e,n.uniforms.angle=s,n.uniforms.color=l,i.drawArrays(i.TRIANGLES,this.titleOffset,this.titleCount)}}}(),g.bind=(h=[0,0],p=[0,0],d=[0,0],function(){var t=this.plot,e=this.shader,r=t._tickBounds,n=t.dataBox,i=t.screenBox,a=t.viewBox;e.bind();for(var o=0;o<2;++o){var s=r[o],l=r[o+2]-s,c=.5*(n[o+2]+n[o]),u=n[o+2]-n[o],f=a[o],g=a[o+2]-f,v=i[o],m=i[o+2]-v;p[o]=2*l/u*g/m,h[o]=2*(s-c)/u*g/m}d[1]=2*t.pixelRatio/(i[3]-i[1]),d[0]=d[1]*(i[3]-i[1])/(i[2]-i[0]),e.uniforms.dataScale=p,e.uniforms.dataShift=h,e.uniforms.textScale=d,this.vbo.bind(),e.attributes.textCoordinate.pointer()}),g.update=function(t){var e,r,n,i,o,s=[],l=t.ticks,c=t.bounds;for(o=0;o<2;++o){var u=[Math.floor(s.length/3)],f=[-1/0],h=l[o];for(e=0;e<h.length;++e){var p=h[e],d=p.x,g=p.text,v=p.font||"sans-serif";i=p.fontSize||12;for(var m=1/(c[o+2]-c[o]),y=c[o],x=g.split("\n"),b=0;b<x.length;b++)for(n=a(v,x[b]).data,r=0;r<n.length;r+=2)s.push(n[r]*i,-n[r+1]*i-b*i*1.2,(d-y)*m);u.push(Math.floor(s.length/3)),f.push(d)}this.tickOffset[o]=u,this.tickX[o]=f}for(o=0;o<2;++o){for(this.labelOffset[o]=Math.floor(s.length/3),n=a(t.labelFont[o],t.labels[o],{textAlign:"center"}).data,i=t.labelSize[o],e=0;e<n.length;e+=2)s.push(n[e]*i,-n[e+1]*i,0);this.labelCount[o]=Math.floor(s.length/3)-this.labelOffset[o]}for(this.titleOffset=Math.floor(s.length/3),n=a(t.titleFont,t.title).data,i=t.titleSize,e=0;e<n.length;e+=2)s.push(n[e]*i,-n[e+1]*i,0);this.titleCount=Math.floor(s.length/3)-this.titleOffset,this.vbo.update(s)},g.dispose=function(){this.vbo.dispose(),this.shader.dispose()}},{"./shaders":283,"binary-search-bounds":285,"gl-buffer":240,"gl-shader":300,"text-cache":523}],285:[function(t,e,r){arguments[4][104][0].apply(r,arguments)},{dup:104}],286:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl,r=n(e,[e.drawingBufferWidth,e.drawingBufferHeight]),c=new l(e,r);return c.grid=i(c),c.text=a(c),c.line=o(c),c.box=s(c),c.update(t),c};var n=t("gl-select-static"),i=t("./lib/grid"),a=t("./lib/text"),o=t("./lib/line"),s=t("./lib/box");function l(t,e){this.gl=t,this.pickBuffer=e,this.screenBox=[0,0,t.drawingBufferWidth,t.drawingBufferHeight],this.viewBox=[0,0,0,0],this.dataBox=[-10,-10,10,10],this.gridLineEnable=[!0,!0],this.gridLineWidth=[1,1],this.gridLineColor=[[0,0,0,1],[0,0,0,1]],this.pixelRatio=1,this.tickMarkLength=[0,0,0,0],this.tickMarkWidth=[0,0,0,0],this.tickMarkColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.tickPad=[15,15,15,15],this.tickAngle=[0,0,0,0],this.tickEnable=[!0,!0,!0,!0],this.tickColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.labelPad=[15,15,15,15],this.labelAngle=[0,Math.PI/2,0,3*Math.PI/2],this.labelEnable=[!0,!0,!0,!0],this.labelColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.titleCenter=[0,0],this.titleEnable=!0,this.titleAngle=0,this.titleColor=[0,0,0,1],this.borderColor=[0,0,0,0],this.backgroundColor=[0,0,0,0],this.zeroLineEnable=[!0,!0],this.zeroLineWidth=[4,4],this.zeroLineColor=[[0,0,0,1],[0,0,0,1]],this.borderLineEnable=[!0,!0,!0,!0],this.borderLineWidth=[2,2,2,2],this.borderLineColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.grid=null,this.text=null,this.line=null,this.box=null,this.objects=[],this.overlays=[],this._tickBounds=[1/0,1/0,-1/0,-1/0],this.static=!1,this.dirty=!1,this.pickDirty=!1,this.pickDelay=120,this.pickRadius=10,this._pickTimeout=null,this._drawPick=this.drawPick.bind(this),this._depthCounter=0}var c=l.prototype;function u(t){for(var e=t.slice(),r=0;r<e.length;++r)e[r]=e[r].slice();return e}function f(t,e){return t.x-e.x}c.setDirty=function(){this.dirty=this.pickDirty=!0},c.setOverlayDirty=function(){this.dirty=!0},c.nextDepthValue=function(){return this._depthCounter++/65536},c.draw=function(){var t=this.gl,e=this.screenBox,r=this.viewBox,n=this.dataBox,i=this.pixelRatio,a=this.grid,o=this.line,s=this.text,l=this.objects;if(this._depthCounter=0,this.pickDirty&&(this._pickTimeout&&clearTimeout(this._pickTimeout),this.pickDirty=!1,this._pickTimeout=setTimeout(this._drawPick,this.pickDelay)),this.dirty){if(this.dirty=!1,t.bindFramebuffer(t.FRAMEBUFFER,null),t.enable(t.SCISSOR_TEST),t.disable(t.DEPTH_TEST),t.depthFunc(t.LESS),t.depthMask(!1),t.enable(t.BLEND),t.blendEquation(t.FUNC_ADD,t.FUNC_ADD),t.blendFunc(t.ONE,t.ONE_MINUS_SRC_ALPHA),this.borderColor){t.scissor(e[0],e[1],e[2]-e[0],e[3]-e[1]);var c=this.borderColor;t.clearColor(c[0]*c[3],c[1]*c[3],c[2]*c[3],c[3]),t.clear(t.COLOR_BUFFER_BIT|t.DEPTH_BUFFER_BIT)}t.scissor(r[0],r[1],r[2]-r[0],r[3]-r[1]),t.viewport(r[0],r[1],r[2]-r[0],r[3]-r[1]);var u=this.backgroundColor;t.clearColor(u[0]*u[3],u[1]*u[3],u[2]*u[3],u[3]),t.clear(t.COLOR_BUFFER_BIT),a.draw();var f=this.zeroLineEnable,h=this.zeroLineColor,p=this.zeroLineWidth;if(f[0]||f[1]){o.bind();for(var d=0;d<2;++d)if(f[d]&&n[d]<=0&&n[d+2]>=0){var g=e[d]-n[d]*(e[d+2]-e[d])/(n[d+2]-n[d]);0===d?o.drawLine(g,e[1],g,e[3],p[d],h[d]):o.drawLine(e[0],g,e[2],g,p[d],h[d])}}for(d=0;d<l.length;++d)l[d].draw();t.viewport(e[0],e[1],e[2]-e[0],e[3]-e[1]),t.scissor(e[0],e[1],e[2]-e[0],e[3]-e[1]),this.grid.drawTickMarks(),o.bind();var v=this.borderLineEnable,m=this.borderLineWidth,y=this.borderLineColor;for(v[1]&&o.drawLine(r[0],r[1]-.5*m[1]*i,r[0],r[3]+.5*m[3]*i,m[1],y[1]),v[0]&&o.drawLine(r[0]-.5*m[0]*i,r[1],r[2]+.5*m[2]*i,r[1],m[0],y[0]),v[3]&&o.drawLine(r[2],r[1]-.5*m[1]*i,r[2],r[3]+.5*m[3]*i,m[3],y[3]),v[2]&&o.drawLine(r[0]-.5*m[0]*i,r[3],r[2]+.5*m[2]*i,r[3],m[2],y[2]),s.bind(),d=0;d<2;++d)s.drawTicks(d);this.titleEnable&&s.drawTitle();var x=this.overlays;for(d=0;d<x.length;++d)x[d].draw();t.disable(t.SCISSOR_TEST),t.disable(t.BLEND),t.depthMask(!0)}},c.drawPick=function(){if(!this.static){var t=this.pickBuffer;this.gl;this._pickTimeout=null,t.begin();for(var e=1,r=this.objects,n=0;n<r.length;++n)e=r[n].drawPick(e);t.end()}},c.pick=function(t,e){if(!this.static){var r=this.pixelRatio,n=this.pickPixelRatio,i=this.viewBox,a=0|Math.round((t-i[0]/r)*n),o=0|Math.round((e-i[1]/r)*n),s=this.pickBuffer.query(a,o,this.pickRadius);if(!s)return null;for(var l=s.id+(s.value[0]<<8)+(s.value[1]<<16)+(s.value[2]<<24),c=this.objects,u=0;u<c.length;++u){var f=c[u].pick(a,o,l);if(f)return f}return null}},c.setScreenBox=function(t){var e=this.screenBox,r=this.pixelRatio;e[0]=0|Math.round(t[0]*r),e[1]=0|Math.round(t[1]*r),e[2]=0|Math.round(t[2]*r),e[3]=0|Math.round(t[3]*r),this.setDirty()},c.setDataBox=function(t){var e=this.dataBox;(e[0]!==t[0]||e[1]!==t[1]||e[2]!==t[2]||e[3]!==t[3])&&(e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],this.setDirty())},c.setViewBox=function(t){var e=this.pixelRatio,r=this.viewBox;r[0]=0|Math.round(t[0]*e),r[1]=0|Math.round(t[1]*e),r[2]=0|Math.round(t[2]*e),r[3]=0|Math.round(t[3]*e);var n=this.pickPixelRatio;this.pickBuffer.shape=[0|Math.round((t[2]-t[0])*n),0|Math.round((t[3]-t[1])*n)],this.setDirty()},c.update=function(t){t=t||{};var e=this.gl;this.pixelRatio=t.pixelRatio||1;var r=this.pixelRatio;this.pickPixelRatio=Math.max(r,1),this.setScreenBox(t.screenBox||[0,0,e.drawingBufferWidth/r,e.drawingBufferHeight/r]);this.screenBox;this.setViewBox(t.viewBox||[.125*(this.screenBox[2]-this.screenBox[0])/r,.125*(this.screenBox[3]-this.screenBox[1])/r,.875*(this.screenBox[2]-this.screenBox[0])/r,.875*(this.screenBox[3]-this.screenBox[1])/r]);var n=this.viewBox,i=(n[2]-n[0])/(n[3]-n[1]);this.setDataBox(t.dataBox||[-10,-10/i,10,10/i]),this.borderColor=!1!==t.borderColor&&(t.borderColor||[0,0,0,0]).slice(),this.backgroundColor=(t.backgroundColor||[0,0,0,0]).slice(),this.gridLineEnable=(t.gridLineEnable||[!0,!0]).slice(),this.gridLineWidth=(t.gridLineWidth||[1,1]).slice(),this.gridLineColor=u(t.gridLineColor||[[.5,.5,.5,1],[.5,.5,.5,1]]),this.zeroLineEnable=(t.zeroLineEnable||[!0,!0]).slice(),this.zeroLineWidth=(t.zeroLineWidth||[4,4]).slice(),this.zeroLineColor=u(t.zeroLineColor||[[0,0,0,1],[0,0,0,1]]),this.tickMarkLength=(t.tickMarkLength||[0,0,0,0]).slice(),this.tickMarkWidth=(t.tickMarkWidth||[0,0,0,0]).slice(),this.tickMarkColor=u(t.tickMarkColor||[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]]),this.titleCenter=(t.titleCenter||[.5*(n[0]+n[2])/r,(n[3]+120)/r]).slice(),this.titleEnable=!("titleEnable"in t&&!t.titleEnable),this.titleAngle=t.titleAngle||0,this.titleColor=(t.titleColor||[0,0,0,1]).slice(),this.labelPad=(t.labelPad||[15,15,15,15]).slice(),this.labelAngle=(t.labelAngle||[0,Math.PI/2,0,3*Math.PI/2]).slice(),this.labelEnable=(t.labelEnable||[!0,!0,!0,!0]).slice(),this.labelColor=u(t.labelColor||[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]]),this.tickPad=(t.tickPad||[15,15,15,15]).slice(),this.tickAngle=(t.tickAngle||[0,0,0,0]).slice(),this.tickEnable=(t.tickEnable||[!0,!0,!0,!0]).slice(),this.tickColor=u(t.tickColor||[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]]),this.borderLineEnable=(t.borderLineEnable||[!0,!0,!0,!0]).slice(),this.borderLineWidth=(t.borderLineWidth||[2,2,2,2]).slice(),this.borderLineColor=u(t.borderLineColor||[[0,0,0,1],[0,0,0,1],[0,0,0,1],[0,0,0,1]]);var a=t.ticks||[[],[]],o=this._tickBounds;o[0]=o[1]=1/0,o[2]=o[3]=-1/0;for(var s=0;s<2;++s){var l=a[s].slice(0);0!==l.length&&(l.sort(f),o[s]=Math.min(o[s],l[0].x),o[s+2]=Math.max(o[s+2],l[l.length-1].x))}this.grid.update({bounds:o,ticks:a}),this.text.update({bounds:o,ticks:a,labels:t.labels||["x","y"],labelSize:t.labelSize||[12,12],labelFont:t.labelFont||["sans-serif","sans-serif"],title:t.title||"",titleSize:t.titleSize||18,titleFont:t.titleFont||"sans-serif"}),this.static=!!t.static,this.setDirty()},c.dispose=function(){this.box.dispose(),this.grid.dispose(),this.text.dispose(),this.line.dispose();for(var t=this.objects.length-1;t>=0;--t)this.objects[t].dispose();this.objects.length=0;for(t=this.overlays.length-1;t>=0;--t)this.overlays[t].dispose();this.overlays.length=0,this.gl=null},c.addObject=function(t){this.objects.indexOf(t)<0&&(this.objects.push(t),this.setDirty())},c.removeObject=function(t){for(var e=this.objects,r=0;r<e.length;++r)if(e[r]===t){e.splice(r,1),this.setDirty();break}},c.addOverlay=function(t){this.overlays.indexOf(t)<0&&(this.overlays.push(t),this.setOverlayDirty())},c.removeOverlay=function(t){for(var e=this.overlays,r=0;r<e.length;++r)if(e[r]===t){e.splice(r,1),this.setOverlayDirty();break}}},{"./lib/box":280,"./lib/grid":281,"./lib/line":282,"./lib/text":284,"gl-select-static":299}],287:[function(t,e,r){"use strict";e.exports=function(t,e){t=t||document.body,e=e||{};var r=[.01,1/0];"distanceLimits"in e&&(r[0]=e.distanceLimits[0],r[1]=e.distanceLimits[1]);"zoomMin"in e&&(r[0]=e.zoomMin);"zoomMax"in e&&(r[1]=e.zoomMax);var c=i({center:e.center||[0,0,0],up:e.up||[0,1,0],eye:e.eye||[0,0,10],mode:e.mode||"orbit",distanceLimits:r}),u=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],f=0,h=t.clientWidth,p=t.clientHeight,d={keyBindingMode:"rotate",enableWheel:!0,view:c,element:t,delay:e.delay||16,rotateSpeed:e.rotateSpeed||1,zoomSpeed:e.zoomSpeed||1,translateSpeed:e.translateSpeed||1,flipX:!!e.flipX,flipY:!!e.flipY,modes:c.modes,_ortho:e._ortho||e.projection&&"orthographic"===e.projection.type||!1,tick:function(){var e=n(),r=this.delay,i=e-2*r;c.idle(e-r),c.recalcMatrix(i),c.flush(e-(100+2*r));for(var a=!0,o=c.computedMatrix,s=0;s<16;++s)a=a&&u[s]===o[s],u[s]=o[s];var l=t.clientWidth===h&&t.clientHeight===p;return h=t.clientWidth,p=t.clientHeight,a?!l:(f=Math.exp(c.computedRadius[0]),!0)},lookAt:function(t,e,r){c.lookAt(c.lastT(),t,e,r)},rotate:function(t,e,r){c.rotate(c.lastT(),t,e,r)},pan:function(t,e,r){c.pan(c.lastT(),t,e,r)},translate:function(t,e,r){c.translate(c.lastT(),t,e,r)}};return Object.defineProperties(d,{matrix:{get:function(){return c.computedMatrix},set:function(t){return c.setMatrix(c.lastT(),t),c.computedMatrix},enumerable:!0},mode:{get:function(){return c.getMode()},set:function(t){var e=c.computedUp.slice(),r=c.computedEye.slice(),i=c.computedCenter.slice();if(c.setMode(t),"turntable"===t){var a=n();c._active.lookAt(a,r,i,e),c._active.lookAt(a+500,r,i,[0,0,1]),c._active.flush(a)}return c.getMode()},enumerable:!0},center:{get:function(){return c.computedCenter},set:function(t){return c.lookAt(c.lastT(),null,t),c.computedCenter},enumerable:!0},eye:{get:function(){return c.computedEye},set:function(t){return c.lookAt(c.lastT(),t),c.computedEye},enumerable:!0},up:{get:function(){return c.computedUp},set:function(t){return c.lookAt(c.lastT(),null,null,t),c.computedUp},enumerable:!0},distance:{get:function(){return f},set:function(t){return c.setDistance(c.lastT(),t),t},enumerable:!0},distanceLimits:{get:function(){return c.getDistanceLimits(r)},set:function(t){return c.setDistanceLimits(t),t},enumerable:!0}}),t.addEventListener("contextmenu",function(t){return t.preventDefault(),!1}),d._lastX=-1,d._lastY=-1,d._lastMods={shift:!1,control:!1,alt:!1,meta:!1},d.enableMouseListeners=function(){function e(e,r,i,a){var o=d.keyBindingMode;if(!1!==o){var s="rotate"===o,l="pan"===o,u="zoom"===o,h=!!a.control,p=!!a.alt,g=!!a.shift,v=!!(1&e),m=!!(2&e),y=!!(4&e),x=1/t.clientHeight,b=x*(r-d._lastX),_=x*(i-d._lastY),w=d.flipX?1:-1,k=d.flipY?1:-1,T=Math.PI*d.rotateSpeed,A=n();if(-1!==d._lastX&&-1!==d._lastY&&((s&&v&&!h&&!p&&!g||v&&!h&&!p&&g)&&c.rotate(A,w*T*b,-k*T*_,0),(l&&v&&!h&&!p&&!g||m||v&&h&&!p&&!g)&&c.pan(A,-d.translateSpeed*b*f,d.translateSpeed*_*f,0),u&&v&&!h&&!p&&!g||y||v&&!h&&p&&!g)){var M=-d.zoomSpeed*_/window.innerHeight*(A-c.lastT())*100;c.pan(A,0,0,f*(Math.exp(M)-1))}return d._lastX=r,d._lastY=i,d._lastMods=a,!0}}d.mouseListener=a(t,e),t.addEventListener("touchstart",function(r){var n=s(r.changedTouches[0],t);e(0,n[0],n[1],d._lastMods),e(1,n[0],n[1],d._lastMods),r.preventDefault()},!!l&&{passive:!1}),t.addEventListener("touchmove",function(r){var n=s(r.changedTouches[0],t);e(1,n[0],n[1],d._lastMods),r.preventDefault()},!!l&&{passive:!1}),t.addEventListener("touchend",function(t){e(0,d._lastX,d._lastY,d._lastMods),t.preventDefault()},!!l&&{passive:!1}),d.wheelListener=o(t,function(t,e){if(!1!==d.keyBindingMode&&d.enableWheel){var r=d.flipX?1:-1,i=d.flipY?1:-1,a=n();if(Math.abs(t)>Math.abs(e))c.rotate(a,0,0,-t*r*Math.PI*d.rotateSpeed/window.innerWidth);else if(!d._ortho){var o=-d.zoomSpeed*i*e/window.innerHeight*(a-c.lastT())/20;c.pan(a,0,0,f*(Math.exp(o)-1))}}},!0)},d.enableMouseListeners(),d};var n=t("right-now"),i=t("3d-view"),a=t("mouse-change"),o=t("mouse-wheel"),s=t("mouse-event-offset"),l=t("has-passive-events")},{"3d-view":50,"has-passive-events":406,"mouse-change":430,"mouse-event-offset":431,"mouse-wheel":433,"right-now":491}],288:[function(t,e,r){var n=t("glslify"),i=t("gl-shader"),a=n(["precision mediump float;\n#define GLSLIFY 1\nattribute vec2 position;\nvarying vec2 uv;\nvoid main() {\n  uv = position;\n  gl_Position = vec4(position, 0, 1);\n}"]),o=n(["precision mediump float;\n#define GLSLIFY 1\n\nuniform sampler2D accumBuffer;\nvarying vec2 uv;\n\nvoid main() {\n  vec4 accum = texture2D(accumBuffer, 0.5 * (uv + 1.0));\n  gl_FragColor = min(vec4(1,1,1,1), accum);\n}"]);e.exports=function(t){return i(t,a,o,null,[{name:"position",type:"vec2"}])}},{"gl-shader":300,glslify:404}],289:[function(t,e,r){"use strict";var n=t("./camera.js"),i=t("gl-axes3d"),a=t("gl-axes3d/properties"),o=t("gl-spikes3d"),s=t("gl-select-static"),l=t("gl-fbo"),c=t("a-big-triangle"),u=t("mouse-change"),f=t("mouse-wheel"),h=t("gl-mat4/perspective"),p=t("gl-mat4/ortho"),d=t("./lib/shader"),g=t("is-mobile")({tablet:!0});function v(){this.mouse=[-1,-1],this.screen=null,this.distance=1/0,this.index=null,this.dataCoordinate=null,this.dataPosition=null,this.object=null,this.data=null}function m(t){var e=Math.round(Math.log(Math.abs(t))/Math.log(10));if(e<0){var r=Math.round(Math.pow(10,-e));return Math.ceil(t*r)/r}if(e>0){r=Math.round(Math.pow(10,e));return Math.ceil(t/r)*r}return Math.ceil(t)}function y(t){return"boolean"!=typeof t||t}e.exports={createScene:function(t){(t=t||{}).camera=t.camera||{};var e=t.canvas;if(!e)if(e=document.createElement("canvas"),t.container){var r=t.container;r.appendChild(e)}else document.body.appendChild(e);var x=t.gl;x||(x=function(t,e){var r=null;try{(r=t.getContext("webgl",e))||(r=t.getContext("experimental-webgl",e))}catch(t){return null}return r}(e,t.glOptions||{premultipliedAlpha:!0,antialias:!0,preserveDrawingBuffer:g}));if(!x)throw new Error("webgl not supported");var b=t.bounds||[[-10,-10,-10],[10,10,10]],_=new v,w=l(x,[x.drawingBufferWidth,x.drawingBufferHeight],{preferFloat:!g}),k=d(x),T=t.cameraObject&&!0===t.cameraObject._ortho||t.camera.projection&&"orthographic"===t.camera.projection.type||!1,A={eye:t.camera.eye||[2,0,0],center:t.camera.center||[0,0,0],up:t.camera.up||[0,1,0],zoomMin:t.camera.zoomMax||.1,zoomMax:t.camera.zoomMin||100,mode:t.camera.mode||"turntable",_ortho:T},M=t.axes||{},S=i(x,M);S.enable=!M.disable;var E=t.spikes||{},C=o(x,E),L=[],z=[],O=[],I=[],D=!0,P=!0,R=new Array(16),F=new Array(16),B={view:null,projection:R,model:F,_ortho:!1},P=!0,N=[x.drawingBufferWidth,x.drawingBufferHeight],j=t.cameraObject||n(e,A),V={gl:x,contextLost:!1,pixelRatio:t.pixelRatio||1,canvas:e,selection:_,camera:j,axes:S,axesPixels:null,spikes:C,bounds:b,objects:L,shape:N,aspect:t.aspectRatio||[1,1,1],pickRadius:t.pickRadius||10,zNear:t.zNear||.01,zFar:t.zFar||1e3,fovy:t.fovy||Math.PI/4,clearColor:t.clearColor||[0,0,0,0],autoResize:y(t.autoResize),autoBounds:y(t.autoBounds),autoScale:!!t.autoScale,autoCenter:y(t.autoCenter),clipToBounds:y(t.clipToBounds),snapToData:!!t.snapToData,onselect:t.onselect||null,onrender:t.onrender||null,onclick:t.onclick||null,cameraParams:B,oncontextloss:null,mouseListener:null,_stopped:!1},U=[x.drawingBufferWidth/V.pixelRatio|0,x.drawingBufferHeight/V.pixelRatio|0];function H(){if(!V._stopped&&V.autoResize){var t=e.parentNode,r=1,n=1;t&&t!==document.body?(r=t.clientWidth,n=t.clientHeight):(r=window.innerWidth,n=window.innerHeight);var i=0|Math.ceil(r*V.pixelRatio),a=0|Math.ceil(n*V.pixelRatio);if(i!==e.width||a!==e.height){e.width=i,e.height=a;var o=e.style;o.position=o.position||"absolute",o.left="0px",o.top="0px",o.width=r+"px",o.height=n+"px",D=!0}}}V.autoResize&&H();function q(){for(var t=L.length,e=I.length,r=0;r<e;++r)O[r]=0;t:for(var r=0;r<t;++r){var n=L[r],i=n.pickSlots;if(i){for(var a=0;a<e;++a)if(O[a]+i<255){z[r]=a,n.setPickBase(O[a]+1),O[a]+=i;continue t}var o=s(x,N);z[r]=e,I.push(o),O.push(i),n.setPickBase(1),e+=1}else z[r]=-1}for(;e>0&&0===O[e-1];)O.pop(),I.pop().dispose()}function G(){if(V.contextLost)return!0;x.isContextLost()&&(V.contextLost=!0,V.mouseListener.enabled=!1,V.selection.object=null,V.oncontextloss&&V.oncontextloss())}window.addEventListener("resize",H),V.update=function(t){V._stopped||(t=t||{},D=!0,P=!0)},V.add=function(t){V._stopped||(t.axes=S,L.push(t),z.push(-1),D=!0,P=!0,q())},V.remove=function(t){if(!V._stopped){var e=L.indexOf(t);e<0||(L.splice(e,1),z.pop(),D=!0,P=!0,q())}},V.dispose=function(){if(!V._stopped&&(V._stopped=!0,window.removeEventListener("resize",H),e.removeEventListener("webglcontextlost",G),V.mouseListener.enabled=!1,!V.contextLost)){S.dispose(),C.dispose();for(var t=0;t<L.length;++t)L[t].dispose();w.dispose();for(var t=0;t<I.length;++t)I[t].dispose();k.dispose(),x=null,S=null,C=null,L=[]}},V.wheelListener=f(e,function(t,e){if(!1!==j.keyBindingMode&&j.enableWheel&&j._ortho){var r=t>e?1.1:1/1.1;V.aspect[0]*=r,V.aspect[1]*=r,V.aspect[2]*=r,V.redraw()}},!0),V._mouseRotating=!1,V._prevButtons=0,V.enableMouseListeners=function(){V.mouseListener=u(e,function(t,e,r){if(!V._stopped){var n=I.length,i=L.length,a=_.object;_.distance=1/0,_.mouse[0]=e,_.mouse[1]=r,_.object=null,_.screen=null,_.dataCoordinate=_.dataPosition=null;var o=!1;if(t&&V._prevButtons)V._mouseRotating=!0;else{V._mouseRotating&&(P=!0),V._mouseRotating=!1;for(var s=0;s<n;++s){var l=I[s].query(e,U[1]-r-1,V.pickRadius);if(l){if(l.distance>_.distance)continue;for(var c=0;c<i;++c){var u=L[c];if(z[c]===s){var f=u.pick(l);f&&(_.buttons=t,_.screen=l.coord,_.distance=l.distance,_.object=u,_.index=f.distance,_.dataPosition=f.position,_.dataCoordinate=f.dataCoordinate,_.data=f,o=!0)}}}}}a&&a!==_.object&&(a.highlight&&a.highlight(null),D=!0),_.object&&(_.object.highlight&&_.object.highlight(_.data),D=!0),(o=o||_.object!==a)&&V.onselect&&V.onselect(_),1&t&&!(1&V._prevButtons)&&V.onclick&&V.onclick(_),V._prevButtons=t}})},e.addEventListener("webglcontextlost",G);var Y=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],W=[Y[0].slice(),Y[1].slice()];function X(){if(!G()){H();var t=V.camera.tick();B.view=V.camera.matrix,D=D||t,P=P||t,S.pixelRatio=V.pixelRatio,C.pixelRatio=V.pixelRatio;var e=L.length,r=Y[0],n=Y[1];r[0]=r[1]=r[2]=1/0,n[0]=n[1]=n[2]=-1/0;for(var i=0;i<e;++i){var o=L[i];o.pixelRatio=V.pixelRatio,o.axes=V.axes,D=D||!!o.dirty,P=P||!!o.dirty;var s=o.bounds;if(s)for(var l=s[0],u=s[1],f=0;f<3;++f)r[f]=Math.min(r[f],l[f]),n[f]=Math.max(n[f],u[f])}var d=V.bounds;if(V.autoBounds)for(var f=0;f<3;++f){if(n[f]<r[f])r[f]=-1,n[f]=1;else{r[f]===n[f]&&(r[f]-=1,n[f]+=1);var g=.05*(n[f]-r[f]);r[f]=r[f]-g,n[f]=n[f]+g}d[0][f]=r[f],d[1][f]=n[f]}for(var v=!1,f=0;f<3;++f)v=v||W[0][f]!==d[0][f]||W[1][f]!==d[1][f],W[0][f]=d[0][f],W[1][f]=d[1][f];if(P=P||v,D=D||v){if(v){for(var y=[0,0,0],i=0;i<3;++i)y[i]=m((d[1][i]-d[0][i])/10);S.autoTicks?S.update({bounds:d,tickSpacing:y}):S.update({bounds:d})}var b=x.drawingBufferWidth,A=x.drawingBufferHeight;N[0]=b,N[1]=A,U[0]=0|Math.max(b/V.pixelRatio,1),U[1]=0|Math.max(A/V.pixelRatio,1),T?(p(R,-b/A,b/A,-1,1,V.zNear,V.zFar),B._ortho=!0):(h(R,V.fovy,b/A,V.zNear,V.zFar),B._ortho=!1);for(var i=0;i<16;++i)F[i]=0;F[15]=1;for(var M=0,i=0;i<3;++i)M=Math.max(M,d[1][i]-d[0][i]);for(var i=0;i<3;++i)V.autoScale?F[5*i]=V.aspect[i]/(d[1][i]-d[0][i]):F[5*i]=1/M,V.autoCenter&&(F[12+i]=.5*-F[5*i]*(d[0][i]+d[1][i]));for(var i=0;i<e;++i){var o=L[i];o.axesBounds=d,V.clipToBounds&&(o.clipBounds=d)}_.object&&(V.snapToData?C.position=_.dataCoordinate:C.position=_.dataPosition,C.bounds=d),P&&(P=!1,function(){if(G())return;x.colorMask(!0,!0,!0,!0),x.depthMask(!0),x.disable(x.BLEND),x.enable(x.DEPTH_TEST);for(var t=L.length,e=I.length,r=0;r<e;++r){var n=I[r];n.shape=U,n.begin();for(var i=0;i<t;++i)if(z[i]===r){var a=L[i];a.drawPick&&(a.pixelRatio=1,a.drawPick(B))}n.end()}}()),V.axesPixels=a(V.axes,B,b,A),V.onrender&&V.onrender(),x.bindFramebuffer(x.FRAMEBUFFER,null),x.viewport(0,0,b,A);var E=V.clearColor;x.clearColor(E[0],E[1],E[2],E[3]),x.clear(x.COLOR_BUFFER_BIT|x.DEPTH_BUFFER_BIT),x.depthMask(!0),x.colorMask(!0,!0,!0,!0),x.enable(x.DEPTH_TEST),x.depthFunc(x.LEQUAL),x.disable(x.BLEND),x.disable(x.CULL_FACE);var O=!1;S.enable&&(O=O||S.isTransparent(),S.draw(B)),C.axes=S,_.object&&C.draw(B),x.disable(x.CULL_FACE);for(var i=0;i<e;++i){var o=L[i];o.axes=S,o.pixelRatio=V.pixelRatio,o.isOpaque&&o.isOpaque()&&o.draw(B),o.isTransparent&&o.isTransparent()&&(O=!0)}if(O){w.shape=N,w.bind(),x.clear(x.DEPTH_BUFFER_BIT),x.colorMask(!1,!1,!1,!1),x.depthMask(!0),x.depthFunc(x.LESS),S.enable&&S.isTransparent()&&S.drawTransparent(B);for(var i=0;i<e;++i){var o=L[i];o.isOpaque&&o.isOpaque()&&o.draw(B)}x.enable(x.BLEND),x.blendEquation(x.FUNC_ADD),x.blendFunc(x.ONE,x.ONE_MINUS_SRC_ALPHA),x.colorMask(!0,!0,!0,!0),x.depthMask(!1),x.clearColor(0,0,0,0),x.clear(x.COLOR_BUFFER_BIT),S.isTransparent()&&S.drawTransparent(B);for(var i=0;i<e;++i){var o=L[i];o.isTransparent&&o.isTransparent()&&o.drawTransparent(B)}x.bindFramebuffer(x.FRAMEBUFFER,null),x.blendFunc(x.ONE,x.ONE_MINUS_SRC_ALPHA),x.disable(x.DEPTH_TEST),k.bind(),w.color[0].bind(0),k.uniforms.accumBuffer=0,c(x),x.disable(x.BLEND)}D=!1;for(var i=0;i<e;++i)L[i].dirty=!1}}}return V.enableMouseListeners(),function t(){V._stopped||V.contextLost||(X(),requestAnimationFrame(t))}(),V.redraw=function(){V._stopped||(D=!0,X())},V},createCamera:n}},{"./camera.js":287,"./lib/shader":288,"a-big-triangle":52,"gl-axes3d":232,"gl-axes3d/properties":239,"gl-fbo":248,"gl-mat4/ortho":267,"gl-mat4/perspective":268,"gl-select-static":299,"gl-spikes3d":309,"is-mobile":415,"mouse-change":430,"mouse-wheel":433}],290:[function(t,e,r){var n=t("glslify");r.pointVertex=n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 position;\n\nuniform mat3 matrix;\nuniform float pointSize;\nuniform float pointCloud;\n\nhighp float rand(vec2 co) {\n  highp float a = 12.9898;\n  highp float b = 78.233;\n  highp float c = 43758.5453;\n  highp float d = dot(co.xy, vec2(a, b));\n  highp float e = mod(d, 3.14);\n  return fract(sin(e) * c);\n}\n\nvoid main() {\n  vec3 hgPosition = matrix * vec3(position, 1);\n  gl_Position  = vec4(hgPosition.xy, 0, hgPosition.z);\n    // if we don't jitter the point size a bit, overall point cloud\n    // saturation 'jumps' on zooming, which is disturbing and confusing\n  gl_PointSize = pointSize * ((19.5 + rand(position)) / 20.0);\n  if(pointCloud != 0.0) { // pointCloud is truthy\n    // get the same square surface as circle would be\n    gl_PointSize *= 0.886;\n  }\n}"]),r.pointFragment=n(["precision mediump float;\n#define GLSLIFY 1\n\nuniform vec4 color, borderColor;\nuniform float centerFraction;\nuniform float pointCloud;\n\nvoid main() {\n  float radius;\n  vec4 baseColor;\n  if(pointCloud != 0.0) { // pointCloud is truthy\n    if(centerFraction == 1.0) {\n      gl_FragColor = color;\n    } else {\n      gl_FragColor = mix(borderColor, color, centerFraction);\n    }\n  } else {\n    radius = length(2.0 * gl_PointCoord.xy - 1.0);\n    if(radius > 1.0) {\n      discard;\n    }\n    baseColor = mix(borderColor, color, step(radius, centerFraction));\n    gl_FragColor = vec4(baseColor.rgb * baseColor.a, baseColor.a);\n  }\n}\n"]),r.pickVertex=n(["precision mediump float;\n#define GLSLIFY 1\n\nattribute vec2 position;\nattribute vec4 pickId;\n\nuniform mat3 matrix;\nuniform float pointSize;\nuniform vec4 pickOffset;\n\nvarying vec4 fragId;\n\nvoid main() {\n  vec3 hgPosition = matrix * vec3(position, 1);\n  gl_Position  = vec4(hgPosition.xy, 0, hgPosition.z);\n  gl_PointSize = pointSize;\n\n  vec4 id = pickId + pickOffset;\n  id.y += floor(id.x / 256.0);\n  id.x -= floor(id.x / 256.0) * 256.0;\n\n  id.z += floor(id.y / 256.0);\n  id.y -= floor(id.y / 256.0) * 256.0;\n\n  id.w += floor(id.z / 256.0);\n  id.z -= floor(id.z / 256.0) * 256.0;\n\n  fragId = id;\n}\n"]),r.pickFragment=n(["precision mediump float;\n#define GLSLIFY 1\n\nvarying vec4 fragId;\n\nvoid main() {\n  float radius = length(2.0 * gl_PointCoord.xy - 1.0);\n  if(radius > 1.0) {\n    discard;\n  }\n  gl_FragColor = fragId / 255.0;\n}\n"])},{glslify:404}],291:[function(t,e,r){"use strict";var n=t("gl-shader"),i=t("gl-buffer"),a=t("typedarray-pool"),o=t("./lib/shader");function s(t,e,r,n,i){this.plot=t,this.offsetBuffer=e,this.pickBuffer=r,this.shader=n,this.pickShader=i,this.sizeMin=.5,this.sizeMinCap=2,this.sizeMax=20,this.areaRatio=1,this.pointCount=0,this.color=[1,0,0,1],this.borderColor=[0,0,0,1],this.blend=!1,this.pickOffset=0,this.points=null}e.exports=function(t,e){var r=t.gl,a=i(r),l=i(r),c=n(r,o.pointVertex,o.pointFragment),u=n(r,o.pickVertex,o.pickFragment),f=new s(t,a,l,c,u);return f.update(e),t.addObject(f),f};var l,c,u=s.prototype;u.dispose=function(){this.shader.dispose(),this.pickShader.dispose(),this.offsetBuffer.dispose(),this.pickBuffer.dispose(),this.plot.removeObject(this)},u.update=function(t){var e;function r(e,r){return e in t?t[e]:r}t=t||{},this.sizeMin=r("sizeMin",.5),this.sizeMax=r("sizeMax",20),this.color=r("color",[1,0,0,1]).slice(),this.areaRatio=r("areaRatio",1),this.borderColor=r("borderColor",[0,0,0,1]).slice(),this.blend=r("blend",!1);var n=t.positions.length>>>1,i=t.positions instanceof Float32Array,o=t.idToIndex instanceof Int32Array&&t.idToIndex.length>=n,s=t.positions,l=i?s:a.mallocFloat32(s.length),c=o?t.idToIndex:a.mallocInt32(n);if(i||l.set(s),!o)for(l.set(s),e=0;e<n;e++)c[e]=e;this.points=s,this.offsetBuffer.update(l),this.pickBuffer.update(c),i||a.free(l),o||a.free(c),this.pointCount=n,this.pickOffset=0},u.unifiedDraw=(l=[1,0,0,0,1,0,0,0,1],c=[0,0,0,0],function(t){var e=void 0!==t,r=e?this.pickShader:this.shader,n=this.plot.gl,i=this.plot.dataBox;if(0===this.pointCount)return t;var a=i[2]-i[0],o=i[3]-i[1],s=function(t,e){var r,n=0,i=t.length>>>1;for(r=0;r<i;r++){var a=t[2*r],o=t[2*r+1];a>=e[0]&&a<=e[2]&&o>=e[1]&&o<=e[3]&&n++}return n}(this.points,i),u=this.plot.pickPixelRatio*Math.max(Math.min(this.sizeMinCap,this.sizeMin),Math.min(this.sizeMax,this.sizeMax/Math.pow(s,.33333)));l[0]=2/a,l[4]=2/o,l[6]=-2*i[0]/a-1,l[7]=-2*i[1]/o-1,this.offsetBuffer.bind(),r.bind(),r.attributes.position.pointer(),r.uniforms.matrix=l,r.uniforms.color=this.color,r.uniforms.borderColor=this.borderColor,r.uniforms.pointCloud=u<5,r.uniforms.pointSize=u,r.uniforms.centerFraction=Math.min(1,Math.max(0,Math.sqrt(1-this.areaRatio))),e&&(c[0]=255&t,c[1]=t>>8&255,c[2]=t>>16&255,c[3]=t>>24&255,this.pickBuffer.bind(),r.attributes.pickId.pointer(n.UNSIGNED_BYTE),r.uniforms.pickOffset=c,this.pickOffset=t);var f=n.getParameter(n.BLEND),h=n.getParameter(n.DITHER);return f&&!this.blend&&n.disable(n.BLEND),h&&n.disable(n.DITHER),n.drawArrays(n.POINTS,0,this.pointCount),f&&!this.blend&&n.enable(n.BLEND),h&&n.enable(n.DITHER),t+this.pointCount}),u.draw=u.unifiedDraw,u.drawPick=u.unifiedDraw,u.pick=function(t,e,r){var n=this.pickOffset,i=this.pointCount;if(r<n||r>=n+i)return null;var a=r-n,o=this.points;return{object:this,pointId:a,dataCoord:[o[2*a],o[2*a+1]]}}},{"./lib/shader":290,"gl-buffer":240,"gl-shader":300,"typedarray-pool":532}],292:[function(t,e,r){e.exports=function(t,e,r,n){var i,a,o,s,l,c=e[0],u=e[1],f=e[2],h=e[3],p=r[0],d=r[1],g=r[2],v=r[3];(a=c*p+u*d+f*g+h*v)<0&&(a=-a,p=-p,d=-d,g=-g,v=-v);1-a>1e-6?(i=Math.acos(a),o=Math.sin(i),s=Math.sin((1-n)*i)/o,l=Math.sin(n*i)/o):(s=1-n,l=n);return t[0]=s*c+l*p,t[1]=s*u+l*d,t[2]=s*f+l*g,t[3]=s*h+l*v,t}},{}],293:[function(t,e,r){"use strict";e.exports=function(t){return t||0===t?t.toString():""}},{}],294:[function(t,e,r){"use strict";var n=t("vectorize-text");e.exports=function(t,e,r){var a=i[e];a||(a=i[e]={});if(t in a)return a[t];var o={textAlign:"center",textBaseline:"middle",lineHeight:1,font:e,lineSpacing:1.25,styletags:{breaklines:!0,bolds:!0,italics:!0,subscripts:!0,superscripts:!0},triangles:!0},s=n(t,o);o.triangles=!1;var l,c,u=n(t,o);if(r&&1!==r){for(l=0;l<s.positions.length;++l)for(c=0;c<s.positions[l].length;++c)s.positions[l][c]/=r;for(l=0;l<u.positions.length;++l)for(c=0;c<u.positions[l].length;++c)u.positions[l][c]/=r}var f=[[1/0,1/0],[-1/0,-1/0]],h=u.positions.length;for(l=0;l<h;++l){var p=u.positions[l];for(c=0;c<2;++c)f[0][c]=Math.min(f[0][c],p[c]),f[1][c]=Math.max(f[1][c],p[c])}return a[t]=[s,u,f]};var i={}},{"vectorize-text":537}],295:[function(t,e,r){var n=t("gl-shader"),i=t("glslify"),a=i(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 glyph;\nattribute vec4 id;\n\nuniform vec4 highlightId;\nuniform float highlightScale;\nuniform mat4 model, view, projection;\nuniform vec3 clipBounds[2];\n\nvarying vec4 interpColor;\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n    gl_Position = vec4(0,0,0,0);\n  } else {\n    float scale = 1.0;\n    if(distance(highlightId, id) < 0.0001) {\n      scale = highlightScale;\n    }\n\n    vec4 worldPosition = model * vec4(position, 1);\n    vec4 viewPosition = view * worldPosition;\n    viewPosition = viewPosition / viewPosition.w;\n    vec4 clipPosition = projection * (viewPosition + scale * vec4(glyph.x, -glyph.y, 0, 0));\n\n    gl_Position = clipPosition;\n    interpColor = color;\n    pickId = id;\n    dataCoordinate = position;\n  }\n}"]),o=i(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 glyph;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\nuniform vec2 screenSize;\nuniform vec3 clipBounds[2];\nuniform float highlightScale, pixelRatio;\nuniform vec4 highlightId;\n\nvarying vec4 interpColor;\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n    gl_Position = vec4(0,0,0,0);\n  } else {\n    float scale = pixelRatio;\n    if(distance(highlightId.bgr, id.bgr) < 0.001) {\n      scale *= highlightScale;\n    }\n\n    vec4 worldPosition = model * vec4(position, 1.0);\n    vec4 viewPosition = view * worldPosition;\n    vec4 clipPosition = projection * viewPosition;\n    clipPosition /= clipPosition.w;\n\n    gl_Position = clipPosition + vec4(screenSize * scale * vec2(glyph.x, -glyph.y), 0.0, 0.0);\n    interpColor = color;\n    pickId = id;\n    dataCoordinate = position;\n  }\n}"]),s=i(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nattribute vec3 position;\nattribute vec4 color;\nattribute vec2 glyph;\nattribute vec4 id;\n\nuniform float highlightScale;\nuniform vec4 highlightId;\nuniform vec3 axes[2];\nuniform mat4 model, view, projection;\nuniform vec2 screenSize;\nuniform vec3 clipBounds[2];\nuniform float scale, pixelRatio;\n\nvarying vec4 interpColor;\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], position)) {\n\n    gl_Position = vec4(0,0,0,0);\n  } else {\n    float lscale = pixelRatio * scale;\n    if(distance(highlightId, id) < 0.0001) {\n      lscale *= highlightScale;\n    }\n\n    vec4 clipCenter   = projection * view * model * vec4(position, 1);\n    vec3 dataPosition = position + 0.5*lscale*(axes[0] * glyph.x + axes[1] * glyph.y) * clipCenter.w * screenSize.y;\n    vec4 clipPosition = projection * view * model * vec4(dataPosition, 1);\n\n    gl_Position = clipPosition;\n    interpColor = color;\n    pickId = id;\n    dataCoordinate = dataPosition;\n  }\n}\n"]),l=i(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 fragClipBounds[2];\nuniform float opacity;\n\nvarying vec4 interpColor;\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n  if (\n    outOfRange(fragClipBounds[0], fragClipBounds[1], dataCoordinate) ||\n    interpColor.a * opacity == 0.\n  ) discard;\n  gl_FragColor = interpColor * opacity;\n}\n"]),c=i(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 fragClipBounds[2];\nuniform float pickGroup;\n\nvarying vec4 pickId;\nvarying vec3 dataCoordinate;\n\nvoid main() {\n  if (outOfRange(fragClipBounds[0], fragClipBounds[1], dataCoordinate)) discard;\n\n  gl_FragColor = vec4(pickGroup, pickId.bgr);\n}"]),u=[{name:"position",type:"vec3"},{name:"color",type:"vec4"},{name:"glyph",type:"vec2"},{name:"id",type:"vec4"}],f={vertex:a,fragment:l,attributes:u},h={vertex:o,fragment:l,attributes:u},p={vertex:s,fragment:l,attributes:u},d={vertex:a,fragment:c,attributes:u},g={vertex:o,fragment:c,attributes:u},v={vertex:s,fragment:c,attributes:u};function m(t,e){var r=n(t,e),i=r.attributes;return i.position.location=0,i.color.location=1,i.glyph.location=2,i.id.location=3,r}r.createPerspective=function(t){return m(t,f)},r.createOrtho=function(t){return m(t,h)},r.createProject=function(t){return m(t,p)},r.createPickPerspective=function(t){return m(t,d)},r.createPickOrtho=function(t){return m(t,g)},r.createPickProject=function(t){return m(t,v)}},{"gl-shader":300,glslify:404}],296:[function(t,e,r){"use strict";var n=t("is-string-blank"),i=t("gl-buffer"),a=t("gl-vao"),o=t("typedarray-pool"),s=t("gl-mat4/multiply"),l=t("./lib/shaders"),c=t("./lib/glyphs"),u=t("./lib/get-simple-string"),f=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];function h(t,e){var r=t[0],n=t[1],i=t[2],a=t[3];return t[0]=e[0]*r+e[4]*n+e[8]*i+e[12]*a,t[1]=e[1]*r+e[5]*n+e[9]*i+e[13]*a,t[2]=e[2]*r+e[6]*n+e[10]*i+e[14]*a,t[3]=e[3]*r+e[7]*n+e[11]*i+e[15]*a,t}function p(t,e,r,n){return h(n,n),h(n,n),h(n,n)}function d(t,e){this.index=t,this.dataCoordinate=this.position=e}function g(t){return!0===t?1:t>1?1:t}function v(t,e,r,n,i,a,o,s,l,c,u,f){this.gl=t,this.pixelRatio=1,this.shader=e,this.orthoShader=r,this.projectShader=n,this.pointBuffer=i,this.colorBuffer=a,this.glyphBuffer=o,this.idBuffer=s,this.vao=l,this.vertexCount=0,this.lineVertexCount=0,this.opacity=1,this.hasAlpha=!1,this.lineWidth=0,this.projectScale=[2/3,2/3,2/3],this.projectOpacity=[1,1,1],this.projectHasAlpha=!1,this.pickId=0,this.pickPerspectiveShader=c,this.pickOrthoShader=u,this.pickProjectShader=f,this.points=[],this._selectResult=new d(0,[0,0,0]),this.useOrtho=!0,this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],this.axesProject=[!0,!0,!0],this.axesBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.highlightId=[1,1,1,1],this.highlightScale=2,this.clipBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.dirty=!0}e.exports=function(t){var e=t.gl,r=l.createPerspective(e),n=l.createOrtho(e),o=l.createProject(e),s=l.createPickPerspective(e),c=l.createPickOrtho(e),u=l.createPickProject(e),f=i(e),h=i(e),p=i(e),d=i(e),g=a(e,[{buffer:f,size:3,type:e.FLOAT},{buffer:h,size:4,type:e.FLOAT},{buffer:p,size:2,type:e.FLOAT},{buffer:d,size:4,type:e.UNSIGNED_BYTE,normalized:!0}]),m=new v(e,r,n,o,f,h,p,d,g,s,c,u);return m.update(t),m};var m=v.prototype;m.pickSlots=1,m.setPickBase=function(t){this.pickId=t},m.isTransparent=function(){if(this.hasAlpha)return!0;for(var t=0;t<3;++t)if(this.axesProject[t]&&this.projectHasAlpha)return!0;return!1},m.isOpaque=function(){if(!this.hasAlpha)return!0;for(var t=0;t<3;++t)if(this.axesProject[t]&&!this.projectHasAlpha)return!0;return!1};var y=[0,0],x=[0,0,0],b=[0,0,0],_=[0,0,0,1],w=[0,0,0,1],k=f.slice(),T=[0,0,0],A=[[0,0,0],[0,0,0]];function M(t){return t[0]=t[1]=t[2]=0,t}function S(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=1,t}function E(t,e,r,n){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[r]=n,t}function C(t,e,r,n){var i,a=e.axesProject,o=e.gl,l=t.uniforms,c=r.model||f,u=r.view||f,h=r.projection||f,d=e.axesBounds,g=function(t){for(var e=A,r=0;r<2;++r)for(var n=0;n<3;++n)e[r][n]=Math.max(Math.min(t[r][n],1e8),-1e8);return e}(e.clipBounds);i=e.axes&&e.axes.lastCubeProps?e.axes.lastCubeProps.axis:[1,1,1],y[0]=2/o.drawingBufferWidth,y[1]=2/o.drawingBufferHeight,t.bind(),l.view=u,l.projection=h,l.screenSize=y,l.highlightId=e.highlightId,l.highlightScale=e.highlightScale,l.clipBounds=g,l.pickGroup=e.pickId/255,l.pixelRatio=n;for(var v=0;v<3;++v)if(a[v]){l.scale=e.projectScale[v],l.opacity=e.projectOpacity[v];for(var m=k,C=0;C<16;++C)m[C]=0;for(C=0;C<4;++C)m[5*C]=1;m[5*v]=0,i[v]<0?m[12+v]=d[0][v]:m[12+v]=d[1][v],s(m,c,m),l.model=m;var L=(v+1)%3,z=(v+2)%3,O=M(x),I=M(b);O[L]=1,I[z]=1;var D=p(0,0,0,S(_,O)),P=p(0,0,0,S(w,I));if(Math.abs(D[1])>Math.abs(P[1])){var R=D;D=P,P=R,R=O,O=I,I=R;var F=L;L=z,z=F}D[0]<0&&(O[L]=-1),P[1]>0&&(I[z]=-1);var B=0,N=0;for(C=0;C<4;++C)B+=Math.pow(c[4*L+C],2),N+=Math.pow(c[4*z+C],2);O[L]/=Math.sqrt(B),I[z]/=Math.sqrt(N),l.axes[0]=O,l.axes[1]=I,l.fragClipBounds[0]=E(T,g[0],v,-1e8),l.fragClipBounds[1]=E(T,g[1],v,1e8),e.vao.bind(),e.vao.draw(o.TRIANGLES,e.vertexCount),e.lineWidth>0&&(o.lineWidth(e.lineWidth*n),e.vao.draw(o.LINES,e.lineVertexCount,e.vertexCount)),e.vao.unbind()}}var L=[[-1e8,-1e8,-1e8],[1e8,1e8,1e8]];function z(t,e,r,n,i,a,o){var s=r.gl;if((a===r.projectHasAlpha||o)&&C(e,r,n,i),a===r.hasAlpha||o){t.bind();var l=t.uniforms;l.model=n.model||f,l.view=n.view||f,l.projection=n.projection||f,y[0]=2/s.drawingBufferWidth,y[1]=2/s.drawingBufferHeight,l.screenSize=y,l.highlightId=r.highlightId,l.highlightScale=r.highlightScale,l.fragClipBounds=L,l.clipBounds=r.axes.bounds,l.opacity=r.opacity,l.pickGroup=r.pickId/255,l.pixelRatio=i,r.vao.bind(),r.vao.draw(s.TRIANGLES,r.vertexCount),r.lineWidth>0&&(s.lineWidth(r.lineWidth*i),r.vao.draw(s.LINES,r.lineVertexCount,r.vertexCount)),r.vao.unbind()}}function O(t,e,r,i){var a;a=Array.isArray(t)?e<t.length?t[e]:void 0:t,a=u(a);var o=!0;n(a)&&(a="\u25bc",o=!1);var s=c(a,r,i);return{mesh:s[0],lines:s[1],bounds:s[2],visible:o}}m.draw=function(t){z(this.useOrtho?this.orthoShader:this.shader,this.projectShader,this,t,this.pixelRatio,!1,!1)},m.drawTransparent=function(t){z(this.useOrtho?this.orthoShader:this.shader,this.projectShader,this,t,this.pixelRatio,!0,!1)},m.drawPick=function(t){z(this.useOrtho?this.pickOrthoShader:this.pickPerspectiveShader,this.pickProjectShader,this,t,1,!0,!0)},m.pick=function(t){if(!t)return null;if(t.id!==this.pickId)return null;var e=t.value[2]+(t.value[1]<<8)+(t.value[0]<<16);if(e>=this.pointCount||e<0)return null;var r=this.points[e],n=this._selectResult;n.index=e;for(var i=0;i<3;++i)n.position[i]=n.dataCoordinate[i]=r[i];return n},m.highlight=function(t){if(t){var e=t.index,r=255&e,n=e>>8&255,i=e>>16&255;this.highlightId=[r/255,n/255,i/255,0]}else this.highlightId=[1,1,1,1]},m.update=function(t){if("perspective"in(t=t||{})&&(this.useOrtho=!t.perspective),"orthographic"in 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u=[1/0,1/0,1/0],f=[-1/0,-1/0,-1/0],h=t.glyph,p=t.color,d=t.size,v=t.angle,m=t.lineColor,y=-1,x=0,b=0,_=0;if(s.length){_=s.length;t:for(n=0;n<_;++n){for(var w=s[n],k=0;k<3;++k)if(isNaN(w[k])||!isFinite(w[k]))continue t;var T=(N=O(h,n,l,this.pixelRatio)).mesh,A=N.lines,M=N.bounds;x+=3*T.cells.length,b+=2*A.edges.length}}var S=x+b,E=o.mallocFloat(3*S),C=o.mallocFloat(4*S),L=o.mallocFloat(2*S),z=o.mallocUint32(S);if(S>0){var I=0,D=x,P=[0,0,0,1],R=[0,0,0,1],F=Array.isArray(p)&&Array.isArray(p[0]),B=Array.isArray(m)&&Array.isArray(m[0]);t:for(n=0;n<_;++n){y+=1;for(w=s[n],k=0;k<3;++k){if(isNaN(w[k])||!isFinite(w[k]))continue t;f[k]=Math.max(f[k],w[k]),u[k]=Math.min(u[k],w[k])}T=(N=O(h,n,l,this.pixelRatio)).mesh,A=N.lines,M=N.bounds;var N,j=N.visible;if(j)if(Array.isArray(p)){if(3===(V=F?n<p.length?p[n]:[0,0,0,0]:p).length){for(k=0;k<3;++k)P[k]=V[k];P[3]=1}else if(4===V.length){for(k=0;k<4;++k)P[k]=V[k];!this.hasAlpha&&V[3]<1&&(this.hasAlpha=!0)}}else P[0]=P[1]=P[2]=0,P[3]=1;else 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t=this.plot,e=this.selectBox,r=this.borderWidth,n=(this.innerFill,this.innerColor),i=(this.outerFill,this.outerColor),a=this.borderColor,o=t.box,s=t.screenBox,l=t.dataBox,c=t.viewBox,u=t.pixelRatio,f=(e[0]-l[0])*(c[2]-c[0])/(l[2]-l[0])+c[0],h=(e[1]-l[1])*(c[3]-c[1])/(l[3]-l[1])+c[1],p=(e[2]-l[0])*(c[2]-c[0])/(l[2]-l[0])+c[0],d=(e[3]-l[1])*(c[3]-c[1])/(l[3]-l[1])+c[1];if(f=Math.max(f,c[0]),h=Math.max(h,c[1]),p=Math.min(p,c[2]),d=Math.min(d,c[3]),!(p<f||d<h)){o.bind();var g=s[2]-s[0],v=s[3]-s[1];if(this.outerFill&&(o.drawBox(0,0,g,h,i),o.drawBox(0,h,f,d,i),o.drawBox(0,d,g,v,i),o.drawBox(p,h,g,d,i)),this.innerFill&&o.drawBox(f,h,p,d,n),r>0){var 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l(t,e,r,n,i){this.coord=[t,e],this.id=r,this.value=n,this.distance=i}function c(t,e,r){this.gl=t,this.fbo=e,this.buffer=r,this._readTimeout=null;var n=this;this._readCallback=function(){n.gl&&(e.bind(),t.readPixels(0,0,e.shape[0],e.shape[1],t.RGBA,t.UNSIGNED_BYTE,n.buffer),n._readTimeout=null)}}var u=c.prototype;Object.defineProperty(u,"shape",{get:function(){return this.gl?this.fbo.shape.slice():[0,0]},set:function(t){if(this.gl){this.fbo.shape=t;var e=this.fbo.shape[0],r=this.fbo.shape[1];if(r*e*4>this.buffer.length){i.free(this.buffer);for(var n=this.buffer=i.mallocUint8(o(r*e*4)),a=0;a<r*e*4;++a)n[a]=255}return t}}}),u.begin=function(){var t=this.gl;this.shape;t&&(this.fbo.bind(),t.clearColor(1,1,1,1),t.clear(t.COLOR_BUFFER_BIT|t.DEPTH_BUFFER_BIT))},u.end=function(){var t=this.gl;t&&(t.bindFramebuffer(t.FRAMEBUFFER,null),this._readTimeout||clearTimeout(this._readTimeout),this._readTimeout=setTimeout(this._readCallback,1))},u.query=function(t,e,r){if(!this.gl)return null;var n=this.fbo.shape.slice();t|=0,e|=0,"number"!=typeof r&&(r=1);var i=0|Math.min(Math.max(t-r,0),n[0]),o=0|Math.min(Math.max(t+r,0),n[0]),c=0|Math.min(Math.max(e-r,0),n[1]),u=0|Math.min(Math.max(e+r,0),n[1]);if(o<=i||u<=c)return null;var f=[o-i,u-c],h=a(this.buffer,[f[0],f[1],4],[4,4*n[0],1],4*(i+n[0]*c)),p=s(h.hi(f[0],f[1],1),r,r),d=p[0],g=p[1];return d<0||Math.pow(this.radius,2)<p[2]?null:new l(d+i|0,g+c|0,h.get(d,g,0),[h.get(d,g,1),h.get(d,g,2),h.get(d,g,3)],Math.sqrt(p[2]))},u.dispose=function(){this.gl&&(this.fbo.dispose(),i.free(this.buffer),this.gl=null,this._readTimeout&&clearTimeout(this._readTimeout))}},{"bit-twiddle":85,"cwise/lib/wrapper":142,"gl-fbo":248,ndarray:445,"typedarray-pool":532}],300:[function(t,e,r){"use strict";var n=t("./lib/create-uniforms"),i=t("./lib/create-attributes"),a=t("./lib/reflect"),o=t("./lib/shader-cache"),s=t("./lib/runtime-reflect"),l=t("./lib/GLError");function 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h=this,p=h.gl,d=h._vref;h._vref=o.shader(p,p.VERTEX_SHADER,t),d&&d.dispose(),h.vertShader=h._vref.shader;var g=this._fref;if(h._fref=o.shader(p,p.FRAGMENT_SHADER,e),g&&g.dispose(),h.fragShader=h._fref.shader,!r||!c){var v=p.createProgram();if(p.attachShader(v,h.fragShader),p.attachShader(v,h.vertShader),p.linkProgram(v),!p.getProgramParameter(v,p.LINK_STATUS)){var m=p.getProgramInfoLog(v);throw new l(m,"Error linking program:"+m)}r=r||s.uniforms(p,v),c=c||s.attributes(p,v),p.deleteProgram(v)}(c=c.slice()).sort(f);var y,x=[],b=[],_=[];for(y=0;y<c.length;++y){var w=c[y];if(w.type.indexOf("mat")>=0){for(var k=0|w.type.charAt(w.type.length-1),T=new Array(k),A=0;A<k;++A)T[A]=_.length,b.push(w.name+"["+A+"]"),"number"==typeof w.location?_.push(w.location+A):Array.isArray(w.location)&&w.location.length===k&&"number"==typeof w.location[A]?_.push(0|w.location[A]):_.push(-1);x.push({name:w.name,type:w.type,locations:T})}else x.push({name:w.name,type:w.type,locations:[_.length]}),b.push(w.name),"number"==typeof w.location?_.push(0|w.location):_.push(-1)}var M=0;for(y=0;y<_.length;++y)if(_[y]<0){for(;_.indexOf(M)>=0;)M+=1;_[y]=M}var S=new Array(r.length);function E(){h.program=o.program(p,h._vref,h._fref,b,_);for(var t=0;t<r.length;++t)S[t]=p.getUniformLocation(h.program,r[t].name)}E(),h._relink=E,h.types={uniforms:a(r),attributes:a(c)},h.attributes=i(p,h,x,_),Object.defineProperty(h,"uniforms",n(p,h,r,S))},e.exports=function(t,e,r,n,i){var a=new c(t);return a.update(e,r,n,i),a}},{"./lib/GLError":301,"./lib/create-attributes":302,"./lib/create-uniforms":303,"./lib/reflect":304,"./lib/runtime-reflect":305,"./lib/shader-cache":306}],301:[function(t,e,r){function n(t,e,r){this.shortMessage=e||"",this.longMessage=r||"",this.rawError=t||"",this.message="gl-shader: "+(e||t||"")+(r?"\n"+r:""),this.stack=(new Error).stack}n.prototype=new 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 vec2 lineOffset = normalize(vec2(delta.y, -delta.x)) / screenShape;\n\n  gl_Position   = vec4(clipPos.xy + clipPos.w * 0.5 * lineWidth * lineOffset, clipPos.z, clipPos.w);\n  fragColor     = color.x * colors[0] + color.y * colors[1] + color.z * colors[2];\n}\n"]),o=n(["precision mediump float;\n#define GLSLIFY 1\n\nvarying vec4 fragColor;\n\nvoid main() {\n  gl_FragColor = fragColor;\n}"]);e.exports=function(t){return i(t,a,o,null,[{name:"position",type:"vec3"},{name:"color",type:"vec3"},{name:"weight",type:"float"}])}},{"gl-shader":300,glslify:404}],309:[function(t,e,r){"use strict";var n=t("gl-buffer"),i=t("gl-vao"),a=t("./shaders/index");e.exports=function(t,e){var r=[];function o(t,e,n,i,a,o){var 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radius of length(d), pointing in the direction of d.\n//\n// Each tube segment is made up of a ring of vertices.\n// These vertices are used to make up the triangles of the tube by connecting them together in the vertex array.\n// The indexes of tube segments run from 0 to 8.\n//\nvec3 getTubePosition(vec3 d, float index, out vec3 normal) {\n  float segmentCount = 8.0;\n\n  float angle = 2.0 * 3.14159 * (index / segmentCount);\n\n  vec3 u = getOrthogonalVector(d);\n  vec3 v = normalize(cross(u, d));\n\n  vec3 x = u * cos(angle) * length(d);\n  vec3 y = v * sin(angle) * length(d);\n  vec3 v3 = x + y;\n\n  normal = normalize(v3);\n\n  return v3;\n}\n\nattribute vec4 vector;\nattribute vec4 color, position;\nattribute vec2 uv;\nuniform float vectorScale;\nuniform float tubeScale;\n\nuniform mat4 model\n           , view\n           , projection\n           , inverseModel;\nuniform vec3 eyePosition\n           , lightPosition;\n\nvarying vec3 f_normal\n           , f_lightDirection\n       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float G1 = (2.0 * NdotH * VdotN) / VdotH;\n  float G2 = (2.0 * NdotH * LdotN) / LdotH;\n  float G = min(1.0, min(G1, G2));\n  \n  //Distribution term\n  float D = beckmannDistribution(NdotH, roughness);\n\n  //Fresnel term\n  float F = pow(1.0 - VdotN, fresnel);\n\n  //Multiply terms and done\n  return  G * F * D / max(3.14159265 * VdotN, 0.000001);\n}\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 clipBounds[2];\nuniform float roughness\n            , fresnel\n            , kambient\n            , kdiffuse\n            , kspecular\n            , opacity;\nuniform sampler2D texture;\n\nvarying vec3 f_normal\n           , f_lightDirection\n           , f_eyeDirection\n           , f_data\n           , f_position;\nvarying vec4 f_color;\nvarying vec2 f_uv;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n  vec3 N = normalize(f_normal);\n  vec3 L = normalize(f_lightDirection);\n  vec3 V = normalize(f_eyeDirection);\n\n  if(gl_FrontFacing) {\n    N = -N;\n  }\n\n  float specular = min(1.0, max(0.0, cookTorranceSpecular(L, V, N, roughness, fresnel)));\n  float diffuse  = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n  vec4 surfaceColor = f_color * texture2D(texture, f_uv);\n  vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular,  1.0);\n\n  gl_FragColor = litColor * opacity;\n}\n"]),o=n(["precision highp float;\n\nprecision highp float;\n#define GLSLIFY 1\n\nvec3 getOrthogonalVector(vec3 v) {\n  // Return up-vector for only-z vector.\n  // Return ax + by + cz = 0, a point that lies on the plane that has v as a normal and that isn't (0,0,0).\n  // From the above if-statement we have ||a|| > 0  U  ||b|| > 0.\n  // Assign z = 0, x = -b, y = a:\n  // a*-b + b*a + c*0 = -ba + ba + 0 = 0\n  if (v.x*v.x > v.z*v.z || v.y*v.y > v.z*v.z) {\n    return normalize(vec3(-v.y, v.x, 0.0));\n  } else {\n    return normalize(vec3(0.0, v.z, -v.y));\n  }\n}\n\n// Calculate the tube vertex and normal at the given index.\n//\n// The returned vertex is for a tube ring with its center at origin, radius of length(d), pointing in the direction of d.\n//\n// Each tube segment is made up of a ring of vertices.\n// These vertices are used to make up the triangles of the tube by connecting them together in the vertex array.\n// The indexes of tube segments run from 0 to 8.\n//\nvec3 getTubePosition(vec3 d, float index, out vec3 normal) {\n  float segmentCount = 8.0;\n\n  float angle = 2.0 * 3.14159 * (index / segmentCount);\n\n  vec3 u = getOrthogonalVector(d);\n  vec3 v = normalize(cross(u, d));\n\n  vec3 x = u * cos(angle) * length(d);\n  vec3 y = v * sin(angle) * length(d);\n  vec3 v3 = x + y;\n\n  normal = normalize(v3);\n\n  return v3;\n}\n\nattribute vec4 vector;\nattribute vec4 position;\nattribute vec4 id;\n\nuniform mat4 model, view, projection;\nuniform float tubeScale;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n  vec3 normal;\n  vec3 XYZ = getTubePosition(mat3(model) * (tubeScale * vector.w * normalize(vector.xyz)), position.w, normal);\n  vec4 tubePosition = model * vec4(position.xyz, 1.0) + vec4(XYZ, 0.0);\n\n  gl_Position = projection * view * tubePosition;\n  f_id        = id;\n  f_position  = position.xyz;\n}\n"]),s=n(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3  clipBounds[2];\nuniform float pickId;\n\nvarying vec3 f_position;\nvarying vec4 f_id;\n\nvoid main() {\n  if (outOfRange(clipBounds[0], clipBounds[1], f_position)) discard;\n\n  gl_FragColor = vec4(pickId, f_id.xyz);\n}"]);r.meshShader={vertex:i,fragment:a,attributes:[{name:"position",type:"vec4"},{name:"normal",type:"vec3"},{name:"color",type:"vec4"},{name:"uv",type:"vec2"},{name:"vector",type:"vec4"}]},r.pickShader={vertex:o,fragment:s,attributes:[{name:"position",type:"vec4"},{name:"id",type:"vec4"},{name:"vector",type:"vec4"}]}},{glslify:404}],311:[function(t,e,r){"use strict";var n=t("gl-shader"),i=t("gl-buffer"),a=t("gl-vao"),o=t("gl-texture2d"),s=t("normals"),l=t("gl-mat4/multiply"),c=t("gl-mat4/invert"),u=t("ndarray"),f=t("colormap"),h=t("simplicial-complex-contour"),p=t("typedarray-pool"),d=t("./shaders"),g=d.meshShader,v=d.pickShader,m=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];function y(t,e,r,n,i,a,o,s,l,c,u,f,h,p,d,g,v,y,x,b,_,w,k,T){this.gl=t,this.cells=[],this.positions=[],this.intensity=[],this.texture=e,this.dirty=!0,this.triShader=r,this.pickShader=n,this.trianglePositions=i,this.triangleVectors=a,this.triangleColors=s,this.triangleNormals=c,this.triangleUVs=l,this.triangleIds=o,this.triangleVAO=u,this.triangleCount=0,this.lineWidth=1,this.edgePositions=f,this.edgeColors=p,this.edgeUVs=d,this.edgeIds=h,this.edgeVAO=g,this.edgeCount=0,this.pointPositions=v,this.pointColors=x,this.pointUVs=b,this.pointSizes=_,this.pointIds=y,this.pointVAO=w,this.pointCount=0,this.contourLineWidth=1,this.contourPositions=k,this.contourVAO=T,this.contourCount=0,this.contourColor=[0,0,0],this.contourEnable=!1,this.pickId=1,this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],this.clipBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.lightPosition=[1e5,1e5,0],this.ambientLight=.8,this.diffuseLight=.8,this.specularLight=2,this.roughness=.5,this.fresnel=1.5,this.opacity=1,this.tubeScale=1,this._model=m,this._view=m,this._projection=m,this._resolution=[1,1],this.pixelRatio=1}var x=y.prototype;function b(t){var e=n(t,v.vertex,v.fragment,null,v.attributes);return e.attributes.position.location=0,e.attributes.id.location=1,e.attributes.vector.location=5,e}x.isOpaque=function(){return this.opacity>=1},x.isTransparent=function(){return this.opacity<1},x.pickSlots=1,x.setPickBase=function(t){this.pickId=t},x.highlight=function(t){if(t&&this.contourEnable){for(var e=h(this.cells,this.intensity,t.intensity),r=e.cells,n=e.vertexIds,i=e.vertexWeights,a=r.length,o=p.mallocFloat32(6*a),s=0,l=0;l<a;++l)for(var c=r[l],u=0;u<2;++u){var f=c[0];2===c.length&&(f=c[u]);for(var d=n[f][0],g=n[f][1],v=i[f],m=1-v,y=this.positions[d],x=this.positions[g],b=0;b<3;++b)o[s++]=v*y[b]+m*x[b]}this.contourCount=s/3|0,this.contourPositions.update(o.subarray(0,s)),p.free(o)}else this.contourCount=0},x.update=function(t){t=t||{};var e=this.gl;this.dirty=!0,"contourEnable"in t&&(this.contourEnable=t.contourEnable),"contourColor"in t&&(this.contourColor=t.contourColor),"lineWidth"in t&&(this.lineWidth=t.lineWidth),"lightPosition"in t&&(this.lightPosition=t.lightPosition),"opacity"in t&&(this.opacity=t.opacity),"ambient"in t&&(this.ambientLight=t.ambient),"diffuse"in t&&(this.diffuseLight=t.diffuse),"specular"in t&&(this.specularLight=t.specular),"roughness"in t&&(this.roughness=t.roughness),"fresnel"in t&&(this.fresnel=t.fresnel),t.texture?(this.texture.dispose(),this.texture=o(e,t.texture)):t.colormap&&(this.texture.shape=[256,256],this.texture.minFilter=e.LINEAR_MIPMAP_LINEAR,this.texture.magFilter=e.LINEAR,this.texture.setPixels(function(t){for(var e=f({colormap:t,nshades:256,format:"rgba"}),r=new Uint8Array(1024),n=0;n<256;++n){for(var i=e[n],a=0;a<3;++a)r[4*n+a]=i[a];r[4*n+3]=255*i[3]}return u(r,[256,256,4],[4,0,1])}(t.colormap)),this.texture.generateMipmap());var r=t.cells,n=t.positions,i=t.vectors;if(n&&r&&i){void 0!==t.tubeScale&&(this.tubeScale=t.tubeScale);var a=[],l=[],c=[],h=[],p=[],d=[],g=[],v=[],m=[],y=[],x=[],b=[],_=[],w=[],k=[];this.cells=r,this.positions=n,this.vectors=i;var T=t.vertexNormals,A=t.cellNormals,M=void 0===t.vertexNormalsEpsilon?1e-6:t.vertexNormalsEpsilon,S=void 0===t.faceNormalsEpsilon?1e-6:t.faceNormalsEpsilon;t.useFacetNormals&&!A&&(A=s.faceNormals(r,n,S)),A||T||(T=s.vertexNormals(r,n,M));var E=t.vertexColors,C=t.cellColors,L=t.meshColor||[1,1,1,1],z=t.vertexUVs,O=t.vertexIntensity,I=t.cellUVs,D=t.cellIntensity,P=1/0,R=-1/0;if(!z&&!I)if(O)if(t.vertexIntensityBounds)P=+t.vertexIntensityBounds[0],R=+t.vertexIntensityBounds[1];else for(var F=0;F<O.length;++F){var B=O[F];P=Math.min(P,B),R=Math.max(R,B)}else if(D)for(F=0;F<D.length;++F){B=D[F];P=Math.min(P,B),R=Math.max(R,B)}else for(F=0;F<n.length;++F){B=n[F][2];P=Math.min(P,B),R=Math.max(R,B)}this.intensity=O||(D?function(t,e,r){for(var n=new Array(e),i=0;i<e;++i)n[i]=0;var a=t.length;for(i=0;i<a;++i)for(var o=t[i],s=0;s<o.length;++s)n[o[s]]=r[i];return n}(r,n.length,D):function(t){for(var e=t.length,r=new Array(e),n=0;n<e;++n)r[n]=t[n][2];return r}(n));var N=t.pointSizes,j=t.pointSize||1;this.bounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]];for(F=0;F<n.length;++F)for(var V=n[F],U=0;U<3;++U)!isNaN(V[U])&&isFinite(V[U])&&(this.bounds[0][U]=Math.min(this.bounds[0][U],V[U]),this.bounds[1][U]=Math.max(this.bounds[1][U],V[U]));var H=0,q=0,G=0;t:for(F=0;F<r.length;++F){var Y=r[F];switch(Y.length){case 1:for(V=n[X=Y[0]],U=0;U<3;++U)if(isNaN(V[U])||!isFinite(V[U]))continue t;x.push(V[0],V[1],V[2],V[3]),3===(Z=E?E[X]:C?C[F]:L).length?b.push(Z[0],Z[1],Z[2],1):b.push(Z[0],Z[1],Z[2],Z[3]),$=z?z[X]:O?[(O[X]-P)/(R-P),0]:I?I[F]:D?[(D[F]-P)/(R-P),0]:[(V[2]-P)/(R-P),0],_.push($[0],$[1]),N?w.push(N[X]):w.push(j),k.push(F),G+=1;break;case 2:for(U=0;U<2;++U){V=n[X=Y[U]];for(var W=0;W<3;++W)if(isNaN(V[W])||!isFinite(V[W]))continue t}for(U=0;U<2;++U){V=n[X=Y[U]];g.push(V[0],V[1],V[2]),3===(Z=E?E[X]:C?C[F]:L).length?v.push(Z[0],Z[1],Z[2],1):v.push(Z[0],Z[1],Z[2],Z[3]),$=z?z[X]:O?[(O[X]-P)/(R-P),0]:I?I[F]:D?[(D[F]-P)/(R-P),0]:[(V[2]-P)/(R-P),0],m.push($[0],$[1]),y.push(F)}q+=1;break;case 3:for(U=0;U<3;++U)for(V=n[X=Y[U]],W=0;W<3;++W)if(isNaN(V[W])||!isFinite(V[W]))continue t;for(U=0;U<3;++U){var X;V=n[X=Y[2-U]];a.push(V[0],V[1],V[2],V[3]);var Z,$,J,K=i[X];l.push(K[0],K[1],K[2],K[3]),3===(Z=E?E[X]:C?C[F]:L).length?c.push(Z[0],Z[1],Z[2],1):c.push(Z[0],Z[1],Z[2],Z[3]),$=z?z[X]:O?[(O[X]-P)/(R-P),0]:I?I[F]:D?[(D[F]-P)/(R-P),0]:[(V[2]-P)/(R-P),0],p.push($[0],$[1]),J=T?T[X]:A[F],h.push(J[0],J[1],J[2]),d.push(F)}H+=1}}this.pointCount=G,this.edgeCount=q,this.triangleCount=H,this.pointPositions.update(x),this.pointColors.update(b),this.pointUVs.update(_),this.pointSizes.update(w),this.pointIds.update(new Uint32Array(k)),this.edgePositions.update(g),this.edgeColors.update(v),this.edgeUVs.update(m),this.edgeIds.update(new Uint32Array(y)),this.trianglePositions.update(a),this.triangleVectors.update(l),this.triangleColors.update(c),this.triangleUVs.update(p),this.triangleNormals.update(h),this.triangleIds.update(new Uint32Array(d))}},x.drawTransparent=x.draw=function(t){t=t||{};for(var e=this.gl,r=t.model||m,n=t.view||m,i=t.projection||m,a=[[-1e6,-1e6,-1e6],[1e6,1e6,1e6]],o=0;o<3;++o)a[0][o]=Math.max(a[0][o],this.clipBounds[0][o]),a[1][o]=Math.min(a[1][o],this.clipBounds[1][o]);var s={model:r,view:n,projection:i,inverseModel:m.slice(),clipBounds:a,kambient:this.ambientLight,kdiffuse:this.diffuseLight,kspecular:this.specularLight,roughness:this.roughness,fresnel:this.fresnel,eyePosition:[0,0,0],lightPosition:[0,0,0],opacity:this.opacity,tubeScale:this.tubeScale,contourColor:this.contourColor,texture:0};s.inverseModel=c(s.inverseModel,s.model),e.disable(e.CULL_FACE),this.texture.bind(0);var u=new Array(16);l(u,s.view,s.model),l(u,s.projection,u),c(u,u);for(o=0;o<3;++o)s.eyePosition[o]=u[12+o]/u[15];var f=u[15];for(o=0;o<3;++o)f+=this.lightPosition[o]*u[4*o+3];for(o=0;o<3;++o){for(var h=u[12+o],p=0;p<3;++p)h+=u[4*p+o]*this.lightPosition[p];s.lightPosition[o]=h/f}if(this.triangleCount>0){var d=this.triShader;d.bind(),d.uniforms=s,this.triangleVAO.bind(),e.drawArrays(e.TRIANGLES,0,3*this.triangleCount),this.triangleVAO.unbind()}},x.drawPick=function(t){t=t||{};for(var e=this.gl,r=t.model||m,n=t.view||m,i=t.projection||m,a=[[-1e6,-1e6,-1e6],[1e6,1e6,1e6]],o=0;o<3;++o)a[0][o]=Math.max(a[0][o],this.clipBounds[0][o]),a[1][o]=Math.min(a[1][o],this.clipBounds[1][o]);this._model=[].slice.call(r),this._view=[].slice.call(n),this._projection=[].slice.call(i),this._resolution=[e.drawingBufferWidth,e.drawingBufferHeight];var s={model:r,view:n,projection:i,clipBounds:a,tubeScale:this.tubeScale,pickId:this.pickId/255},l=this.pickShader;l.bind(),l.uniforms=s,this.triangleCount>0&&(this.triangleVAO.bind(),e.drawArrays(e.TRIANGLES,0,3*this.triangleCount),this.triangleVAO.unbind()),this.edgeCount>0&&(this.edgeVAO.bind(),e.lineWidth(this.lineWidth*this.pixelRatio),e.drawArrays(e.LINES,0,2*this.edgeCount),this.edgeVAO.unbind())},x.pick=function(t){if(!t)return null;if(t.id!==this.pickId)return null;var e=t.value[0]+256*t.value[1]+65536*t.value[2],r=this.cells[e],n=this.positions[r[1]].slice(0,3);return{index:e,position:n,intensity:this.intensity[r[1]],velocity:this.vectors[r[1]].slice(0,3),divergence:this.vectors[r[1]][3],dataCoordinate:n}},x.dispose=function(){this.texture.dispose(),this.triShader.dispose(),this.pickShader.dispose(),this.triangleVAO.dispose(),this.trianglePositions.dispose(),this.triangleVectors.dispose(),this.triangleColors.dispose(),this.triangleUVs.dispose(),this.triangleNormals.dispose(),this.triangleIds.dispose(),this.edgeVAO.dispose(),this.edgePositions.dispose(),this.edgeColors.dispose(),this.edgeUVs.dispose(),this.edgeIds.dispose(),this.pointVAO.dispose(),this.pointPositions.dispose(),this.pointColors.dispose(),this.pointUVs.dispose(),this.pointSizes.dispose(),this.pointIds.dispose(),this.contourVAO.dispose(),this.contourPositions.dispose()},e.exports=function(t,e){1===arguments.length&&(t=(e=t).gl);var r=e.triShader||function(t){var e=n(t,g.vertex,g.fragment,null,g.attributes);return e.attributes.position.location=0,e.attributes.color.location=2,e.attributes.uv.location=3,e.attributes.vector.location=5,e}(t),s=b(t),l=o(t,u(new Uint8Array([255,255,255,255]),[1,1,4]));l.generateMipmap(),l.minFilter=t.LINEAR_MIPMAP_LINEAR,l.magFilter=t.LINEAR;var c=i(t),f=i(t),h=i(t),p=i(t),d=i(t),v=i(t),m=a(t,[{buffer:c,type:t.FLOAT,size:4},{buffer:v,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:h,type:t.FLOAT,size:4},{buffer:p,type:t.FLOAT,size:2},{buffer:d,type:t.FLOAT,size:3},{buffer:f,type:t.FLOAT,size:4}]),x=i(t),_=i(t),w=i(t),k=i(t),T=a(t,[{buffer:x,type:t.FLOAT,size:3},{buffer:k,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:_,type:t.FLOAT,size:4},{buffer:w,type:t.FLOAT,size:2}]),A=i(t),M=i(t),S=i(t),E=i(t),C=i(t),L=a(t,[{buffer:A,type:t.FLOAT,size:3},{buffer:C,type:t.UNSIGNED_BYTE,size:4,normalized:!0},{buffer:M,type:t.FLOAT,size:4},{buffer:S,type:t.FLOAT,size:2},{buffer:E,type:t.FLOAT,size:1}]),z=i(t),O=new y(t,l,r,s,c,f,v,h,p,d,m,x,k,_,w,T,A,C,M,S,E,L,z,a(t,[{buffer:z,type:t.FLOAT,size:3}]));return O.update(e),O}},{"./shaders":310,colormap:119,"gl-buffer":240,"gl-mat4/invert":264,"gl-mat4/multiply":266,"gl-shader":300,"gl-texture2d":317,"gl-vao":322,ndarray:445,normals:448,"simplicial-complex-contour":505,"typedarray-pool":532}],312:[function(t,e,r){"use strict";var n=t("gl-vec3"),i=t("gl-vec4"),a=function(t,e,r,a){for(var o=0,s=0;s<t.length;s++)for(var l=t[s].velocities,c=0;c<l.length;c++){var u=n.length(l[c]);u>o&&(o=u)}var f=t.map(function(t){return function(t,e,r,a){var o,s,l,c=t.points,u=t.velocities,f=t.divergences;n.set(n.create(),0,1,0),n.create(),n.create();n.create();for(var h=[],p=[],d=[],g=[],v=[],m=[],y=0,x=0,b=i.create(),_=i.create(),w=0;w<c.length;w++){o=c[w],s=u[w],l=f[w],0===e&&(l=.05*r),x=n.length(s)/a,b=i.create(),n.copy(b,s),b[3]=l;for(var k=0;k<8;k++)v[k]=[o[0],o[1],o[2],k];if(g.length>0)for(k=0;k<8;k++){var T=(k+1)%8;h.push(g[k],v[k],v[T],v[T],g[T],g[k]),d.push(_,b,b,b,_,_),m.push(y,x,x,x,y,y),p.push([h.length-6,h.length-5,h.length-4],[h.length-3,h.length-2,h.length-1])}var A=g;g=v,v=A,A=_,_=b,b=A,A=y,y=x,x=A}return{positions:h,cells:p,vectors:d,vertexIntensity:m}}(t,r,a,o)}),h=[],p=[],d=[],g=[];for(s=0;s<f.length;s++){var v=f[s],m=h.length;h=h.concat(v.positions),d=d.concat(v.vectors),g=g.concat(v.vertexIntensity);for(c=0;c<v.cells.length;c++){var y=v.cells[c],x=[];p.push(x);for(var b=0;b<y.length;b++)x.push(y[b]+m)}}return{positions:h,cells:p,vectors:d,vertexIntensity:g,colormap:e}},o=function(t,e){var r=n.create(),i=1e-4;n.add(r,t,[i,0,0]);var a=this.getVelocity(r);n.subtract(a,a,e),n.scale(a,a,1e4),n.add(r,t,[0,i,0]);var o=this.getVelocity(r);n.subtract(o,o,e),n.scale(o,o,1e4),n.add(r,t,[0,0,i]);var s=this.getVelocity(r);return n.subtract(s,s,e),n.scale(s,s,1e4),n.add(r,a,o),n.add(r,r,s),r},s=function(t){return h(t,this.vectors,this.meshgrid,this.clampBorders)},l=function(t,e){for(var r=0;r<t.length;r++){var n=t[r];if(n===e)return r;if(n>e)return r-1}return r},c=n.create(),u=n.create(),f=function(t,e,r){return t<e?e:t>r?r:t},h=function(t,e,r,i){var a=t[0],o=t[1],s=t[2],h=r[0].length,p=r[1].length,d=r[2].length,g=l(r[0],a),v=l(r[1],o),m=l(r[2],s),y=g+1,x=v+1,b=m+1;if(r[0][g]===a&&(y=g),r[1][v]===o&&(x=v),r[2][m]===s&&(b=m),i&&(g=f(g,0,h-1),y=f(y,0,h-1),v=f(v,0,p-1),x=f(x,0,p-1),m=f(m,0,d-1),b=f(b,0,d-1)),g<0||v<0||m<0||y>=h||x>=p||b>=d)return n.create();var _=(a-r[0][g])/(r[0][y]-r[0][g]),w=(o-r[1][v])/(r[1][x]-r[1][v]),k=(s-r[2][m])/(r[2][b]-r[2][m]);(_<0||_>1||isNaN(_))&&(_=0),(w<0||w>1||isNaN(w))&&(w=0),(k<0||k>1||isNaN(k))&&(k=0);var T=m*h*p,A=b*h*p,M=v*h,S=x*h,E=g,C=y,L=e[M+T+E],z=e[M+T+C],O=e[S+T+E],I=e[S+T+C],D=e[M+A+E],P=e[M+A+C],R=e[S+A+E],F=e[S+A+C],B=n.create();return n.lerp(B,L,z,_),n.lerp(c,O,I,_),n.lerp(B,B,c,w),n.lerp(c,D,P,_),n.lerp(u,R,F,_),n.lerp(c,c,u,w),n.lerp(B,B,c,k),B},p=function(t){var e=1/0;t.sort(function(t,e){return t-e});for(var r=1;r<t.length;r++){var n=Math.abs(t[r]-t[r-1]);n<e&&(e=n)}return e};e.exports=function(t,e){var r=t.startingPositions,i=t.maxLength||1e3,l=t.tubeSize||1,c=t.absoluteTubeSize;t.getDivergence||(t.getDivergence=o),t.getVelocity||(t.getVelocity=s),void 0===t.clampBorders&&(t.clampBorders=!0);var u=[],f=e[0][0],h=e[0][1],d=e[0][2],g=e[1][0],v=e[1][1],m=e[1][2],y=function(t,e){var r=e[0],n=e[1],i=e[2];return r>=f&&r<=g&&n>=h&&n<=v&&i>=d&&i<=m},x=10*n.distance(e[0],e[1])/i,b=x*x,_=1,w=0;n.create();r.length>=2&&(_=function(t){for(var e=[],r=[],n=[],i={},a={},o={},s=0;s<t.length;s++){var l=t[s],c=l[0],u=l[1],f=l[2];i[c]||(e.push(c),i[c]=!0),a[u]||(r.push(u),a[u]=!0),o[f]||(n.push(f),o[f]=!0)}var h=p(e),d=p(r),g=p(n),v=Math.min(h,d,g);return isFinite(v)?v:1}(r));for(var k=0;k<r.length;k++){var T=n.create();n.copy(T,r[k]);var A=[T],M=[],S=t.getVelocity(T),E=T;M.push(S);var C=[],L=t.getDivergence(T,S);(D=n.length(L))>w&&!isNaN(D)&&isFinite(D)&&(w=D),C.push(D),u.push({points:A,velocities:M,divergences:C});for(var z=0;z<100*i&&A.length<i&&y(0,T);){z++;var O=n.clone(S),I=n.squaredLength(O);if(0===I)break;if(I>b&&n.scale(O,O,x/Math.sqrt(I)),n.add(O,O,T),S=t.getVelocity(O),n.squaredDistance(E,O)-b>-1e-4*b){A.push(O),E=O,M.push(S);L=t.getDivergence(O,S);(D=n.length(L))>w&&!isNaN(D)&&isFinite(D)&&(w=D),C.push(D)}T=O}}for(k=0;k<C.length;k++){var D=C[k];!isNaN(D)&&isFinite(D)||(C[k]=w)}var P=a(u,t.colormap,w,_);return c?P.tubeScale=c:(0===w&&(w=1),P.tubeScale=.5*l*_/w),P},e.exports.createTubeMesh=t("./lib/tubemesh")},{"./lib/tubemesh":311,"gl-vec3":341,"gl-vec4":377}],313:[function(t,e,r){var n=t("gl-shader"),i=t("glslify"),a=i(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec4 uv;\nattribute vec3 f;\nattribute vec3 normal;\n\nuniform vec3 objectOffset;\nuniform mat4 model, view, projection, inverseModel;\nuniform vec3 lightPosition, eyePosition;\nuniform sampler2D colormap;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec2 planeCoordinate;\nvarying vec3 lightDirection, eyeDirection, surfaceNormal;\nvarying vec4 vColor;\n\nvoid main() {\n  vec3 localCoordinate = vec3(uv.zw, f.x);\n  worldCoordinate = objectOffset + localCoordinate;\n  vec4 worldPosition = model * vec4(worldCoordinate, 1.0);\n  vec4 clipPosition = projection * view * worldPosition;\n  gl_Position = clipPosition;\n  kill = f.y;\n  value = f.z;\n  planeCoordinate = uv.xy;\n\n  vColor = texture2D(colormap, vec2(value, value));\n\n  //Lighting geometry parameters\n  vec4 cameraCoordinate = view * worldPosition;\n  cameraCoordinate.xyz /= cameraCoordinate.w;\n  lightDirection = lightPosition - cameraCoordinate.xyz;\n  eyeDirection   = eyePosition - cameraCoordinate.xyz;\n  surfaceNormal  = normalize((vec4(normal,0) * inverseModel).xyz);\n}\n"]),o=i(["precision highp float;\n#define GLSLIFY 1\n\nfloat beckmannDistribution(float x, float roughness) {\n  float NdotH = max(x, 0.0001);\n  float cos2Alpha = NdotH * NdotH;\n  float tan2Alpha = (cos2Alpha - 1.0) / cos2Alpha;\n  float roughness2 = roughness * roughness;\n  float denom = 3.141592653589793 * roughness2 * cos2Alpha * cos2Alpha;\n  return exp(tan2Alpha / roughness2) / denom;\n}\n\nfloat beckmannSpecular(\n  vec3 lightDirection,\n  vec3 viewDirection,\n  vec3 surfaceNormal,\n  float roughness) {\n  return beckmannDistribution(dot(surfaceNormal, normalize(lightDirection + viewDirection)), roughness);\n}\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec3 lowerBound, upperBound;\nuniform float contourTint;\nuniform vec4 contourColor;\nuniform sampler2D colormap;\nuniform vec3 clipBounds[2];\nuniform float roughness, fresnel, kambient, kdiffuse, kspecular, opacity;\nuniform float vertexColor;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec3 lightDirection, eyeDirection, surfaceNormal;\nvarying vec4 vColor;\n\nvoid main() {\n  if ((kill > 0.0) ||\n      (outOfRange(clipBounds[0], clipBounds[1], worldCoordinate))) discard;\n\n  vec3 N = normalize(surfaceNormal);\n  vec3 V = normalize(eyeDirection);\n  vec3 L = normalize(lightDirection);\n\n  if(gl_FrontFacing) {\n    N = -N;\n  }\n\n  float specular = max(beckmannSpecular(L, V, N, roughness), 0.);\n  float diffuse  = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);\n\n  //decide how to interpolate color \u2014 in vertex or in fragment\n  vec4 surfaceColor =\n    step(vertexColor, .5) * texture2D(colormap, vec2(value, value)) +\n    step(.5, vertexColor) * vColor;\n\n  vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular,  1.0);\n\n  gl_FragColor = mix(litColor, contourColor, contourTint) * opacity;\n}\n"]),s=i(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec4 uv;\nattribute float f;\n\nuniform vec3 objectOffset;\nuniform mat3 permutation;\nuniform mat4 model, view, projection;\nuniform float height, zOffset;\nuniform sampler2D colormap;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec2 planeCoordinate;\nvarying vec3 lightDirection, eyeDirection, surfaceNormal;\nvarying vec4 vColor;\n\nvoid main() {\n  vec3 dataCoordinate = permutation * vec3(uv.xy, height);\n  worldCoordinate = objectOffset + dataCoordinate;\n  vec4 worldPosition = model * vec4(worldCoordinate, 1.0);\n\n  vec4 clipPosition = projection * view * worldPosition;\n  clipPosition.z += zOffset;\n\n  gl_Position = clipPosition;\n  value = f + objectOffset.z;\n  kill = -1.0;\n  planeCoordinate = uv.zw;\n\n  vColor = texture2D(colormap, vec2(value, value));\n\n  //Don't do lighting for contours\n  surfaceNormal   = vec3(1,0,0);\n  eyeDirection    = vec3(0,1,0);\n  lightDirection  = vec3(0,0,1);\n}\n"]),l=i(["precision highp float;\n#define GLSLIFY 1\n\nbool outOfRange(float a, float b, float p) {\n  return ((p > max(a, b)) || \n          (p < min(a, b)));\n}\n\nbool outOfRange(vec2 a, vec2 b, vec2 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y));\n}\n\nbool outOfRange(vec3 a, vec3 b, vec3 p) {\n  return (outOfRange(a.x, b.x, p.x) ||\n          outOfRange(a.y, b.y, p.y) ||\n          outOfRange(a.z, b.z, p.z));\n}\n\nbool outOfRange(vec4 a, vec4 b, vec4 p) {\n  return outOfRange(a.xyz, b.xyz, p.xyz);\n}\n\nuniform vec2 shape;\nuniform vec3 clipBounds[2];\nuniform float pickId;\n\nvarying float value, kill;\nvarying vec3 worldCoordinate;\nvarying vec2 planeCoordinate;\nvarying vec3 surfaceNormal;\n\nvec2 splitFloat(float v) {\n  float vh = 255.0 * v;\n  float upper = floor(vh);\n  float lower = fract(vh);\n  return vec2(upper / 255.0, floor(lower * 16.0) / 16.0);\n}\n\nvoid main() {\n  if ((kill > 0.0) ||\n      (outOfRange(clipBounds[0], clipBounds[1], worldCoordinate))) discard;\n\n  vec2 ux = splitFloat(planeCoordinate.x / shape.x);\n  vec2 uy = splitFloat(planeCoordinate.y / shape.y);\n  gl_FragColor = vec4(pickId, ux.x, uy.x, ux.y + (uy.y/16.0));\n}\n"]);r.createShader=function(t){var e=n(t,a,o,null,[{name:"uv",type:"vec4"},{name:"f",type:"vec3"},{name:"normal",type:"vec3"}]);return e.attributes.uv.location=0,e.attributes.f.location=1,e.attributes.normal.location=2,e},r.createPickShader=function(t){var e=n(t,a,l,null,[{name:"uv",type:"vec4"},{name:"f",type:"vec3"},{name:"normal",type:"vec3"}]);return e.attributes.uv.location=0,e.attributes.f.location=1,e.attributes.normal.location=2,e},r.createContourShader=function(t){var e=n(t,s,o,null,[{name:"uv",type:"vec4"},{name:"f",type:"float"}]);return e.attributes.uv.location=0,e.attributes.f.location=1,e},r.createPickContourShader=function(t){var e=n(t,s,l,null,[{name:"uv",type:"vec4"},{name:"f",type:"float"}]);return e.attributes.uv.location=0,e.attributes.f.location=1,e}},{"gl-shader":300,glslify:404}],314:[function(t,e,r){arguments[4][104][0].apply(r,arguments)},{dup:104}],315:[function(t,e,r){"use strict";e.exports=function(t){var e=t.gl,r=y(e),n=b(e),s=x(e),l=_(e),c=i(e),u=a(e,[{buffer:c,size:4,stride:w,offset:0},{buffer:c,size:3,stride:w,offset:16},{buffer:c,size:3,stride:w,offset:28}]),f=i(e),h=a(e,[{buffer:f,size:4,stride:20,offset:0},{buffer:f,size:1,stride:20,offset:16}]),p=i(e),d=a(e,[{buffer:p,size:2,type:e.FLOAT}]),g=o(e,1,S,e.RGBA,e.UNSIGNED_BYTE);g.minFilter=e.LINEAR,g.magFilter=e.LINEAR;var v=new E(e,[0,0],[[0,0,0],[0,0,0]],r,n,c,u,g,s,l,f,h,p,d,[0,0,0]),m={levels:[[],[],[]]};for(var k in t)m[k]=t[k];return m.colormap=m.colormap||"jet",v.update(m),v};var n=t("bit-twiddle"),i=t("gl-buffer"),a=t("gl-vao"),o=t("gl-texture2d"),s=t("typedarray-pool"),l=t("colormap"),c=t("ndarray-ops"),u=t("ndarray-pack"),f=t("ndarray"),h=t("surface-nets"),p=t("gl-mat4/multiply"),d=t("gl-mat4/invert"),g=t("binary-search-bounds"),v=t("ndarray-gradient"),m=t("./lib/shaders"),y=m.createShader,x=m.createContourShader,b=m.createPickShader,_=m.createPickContourShader,w=40,k=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],T=[[0,0],[0,1],[1,0],[1,1],[1,0],[0,1]],A=[[0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0]];function M(t,e,r,n,i){this.position=t,this.index=e,this.uv=r,this.level=n,this.dataCoordinate=i}!function(){for(var t=0;t<3;++t){var e=A[t],r=(t+2)%3;e[(t+1)%3+0]=1,e[r+3]=1,e[t+6]=1}}();var S=256;function E(t,e,r,n,i,a,o,l,c,u,h,p,d,g,v){this.gl=t,this.shape=e,this.bounds=r,this.objectOffset=v,this.intensityBounds=[],this._shader=n,this._pickShader=i,this._coordinateBuffer=a,this._vao=o,this._colorMap=l,this._contourShader=c,this._contourPickShader=u,this._contourBuffer=h,this._contourVAO=p,this._contourOffsets=[[],[],[]],this._contourCounts=[[],[],[]],this._vertexCount=0,this._pickResult=new M([0,0,0],[0,0],[0,0],[0,0,0],[0,0,0]),this._dynamicBuffer=d,this._dynamicVAO=g,this._dynamicOffsets=[0,0,0],this._dynamicCounts=[0,0,0],this.contourWidth=[1,1,1],this.contourLevels=[[1],[1],[1]],this.contourTint=[0,0,0],this.contourColor=[[.5,.5,.5,1],[.5,.5,.5,1],[.5,.5,.5,1]],this.showContour=!0,this.showSurface=!0,this.enableHighlight=[!0,!0,!0],this.highlightColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.highlightTint=[1,1,1],this.highlightLevel=[-1,-1,-1],this.enableDynamic=[!0,!0,!0],this.dynamicLevel=[NaN,NaN,NaN],this.dynamicColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.dynamicTint=[1,1,1],this.dynamicWidth=[1,1,1],this.axesBounds=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]],this.surfaceProject=[!1,!1,!1],this.contourProject=[[!1,!1,!1],[!1,!1,!1],[!1,!1,!1]],this.colorBounds=[!1,!1],this._field=[f(s.mallocFloat(1024),[0,0]),f(s.mallocFloat(1024),[0,0]),f(s.mallocFloat(1024),[0,0])],this.pickId=1,this.clipBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.snapToData=!1,this.pixelRatio=1,this.opacity=1,this.lightPosition=[10,1e4,0],this.ambientLight=.8,this.diffuseLight=.8,this.specularLight=2,this.roughness=.5,this.fresnel=1.5,this.vertexColor=0,this.dirty=!0}var C=E.prototype;C.isTransparent=function(){return this.opacity<1},C.isOpaque=function(){if(this.opacity>=1)return!0;for(var t=0;t<3;++t)if(this._contourCounts[t].length>0||this._dynamicCounts[t]>0)return!0;return!1},C.pickSlots=1,C.setPickBase=function(t){this.pickId=t};var L=[0,0,0],z={showSurface:!1,showContour:!1,projections:[k.slice(),k.slice(),k.slice()],clipBounds:[[[0,0,0],[0,0,0]],[[0,0,0],[0,0,0]],[[0,0,0],[0,0,0]]]};function O(t,e){var r,n,i,a=e.axes&&e.axes.lastCubeProps.axis||L,o=e.showSurface,s=e.showContour;for(r=0;r<3;++r)for(o=o||e.surfaceProject[r],n=0;n<3;++n)s=s||e.contourProject[r][n];for(r=0;r<3;++r){var l=z.projections[r];for(n=0;n<16;++n)l[n]=0;for(n=0;n<4;++n)l[5*n]=1;l[5*r]=0,l[12+r]=e.axesBounds[+(a[r]>0)][r],p(l,t.model,l);var c=z.clipBounds[r];for(i=0;i<2;++i)for(n=0;n<3;++n)c[i][n]=t.clipBounds[i][n];c[0][r]=-1e8,c[1][r]=1e8}return z.showSurface=o,z.showContour=s,z}var I={model:k,view:k,projection:k,inverseModel:k.slice(),lowerBound:[0,0,0],upperBound:[0,0,0],colorMap:0,clipBounds:[[0,0,0],[0,0,0]],height:0,contourTint:0,contourColor:[0,0,0,1],permutation:[1,0,0,0,1,0,0,0,1],zOffset:-1e-4,objectOffset:[0,0,0],kambient:1,kdiffuse:1,kspecular:1,lightPosition:[1e3,1e3,1e3],eyePosition:[0,0,0],roughness:1,fresnel:1,opacity:1,vertexColor:0},D=k.slice(),P=[1,0,0,0,1,0,0,0,1];function R(t,e){t=t||{};var r=this.gl;r.disable(r.CULL_FACE),this._colorMap.bind(0);var n=I;n.model=t.model||k,n.view=t.view||k,n.projection=t.projection||k,n.lowerBound=[this.bounds[0][0],this.bounds[0][1],this.colorBounds[0]||this.bounds[0][2]],n.upperBound=[this.bounds[1][0],this.bounds[1][1],this.colorBounds[1]||this.bounds[1][2]],n.objectOffset=this.objectOffset,n.contourColor=this.contourColor[0],n.inverseModel=d(n.inverseModel,n.model);for(var i=0;i<2;++i)for(var a=n.clipBounds[i],o=0;o<3;++o)a[o]=Math.min(Math.max(this.clipBounds[i][o],-1e8),1e8);n.kambient=this.ambientLight,n.kdiffuse=this.diffuseLight,n.kspecular=this.specularLight,n.roughness=this.roughness,n.fresnel=this.fresnel,n.opacity=this.opacity,n.height=0,n.permutation=P,n.vertexColor=this.vertexColor;var s=D;for(p(s,n.view,n.model),p(s,n.projection,s),d(s,s),i=0;i<3;++i)n.eyePosition[i]=s[12+i]/s[15];var l=s[15];for(i=0;i<3;++i)l+=this.lightPosition[i]*s[4*i+3];for(i=0;i<3;++i){var c=s[12+i];for(o=0;o<3;++o)c+=s[4*o+i]*this.lightPosition[o];n.lightPosition[i]=c/l}var u=O(n,this);if(u.showSurface&&e===this.opacity<1){for(this._shader.bind(),this._shader.uniforms=n,this._vao.bind(),this.showSurface&&this._vertexCount&&this._vao.draw(r.TRIANGLES,this._vertexCount),i=0;i<3;++i)this.surfaceProject[i]&&this.vertexCount&&(this._shader.uniforms.model=u.projections[i],this._shader.uniforms.clipBounds=u.clipBounds[i],this._vao.draw(r.TRIANGLES,this._vertexCount));this._vao.unbind()}if(u.showContour&&!e){var f=this._contourShader;n.kambient=1,n.kdiffuse=0,n.kspecular=0,n.opacity=1,f.bind(),f.uniforms=n;var h=this._contourVAO;for(h.bind(),i=0;i<3;++i)for(f.uniforms.permutation=A[i],r.lineWidth(this.contourWidth[i]*this.pixelRatio),o=0;o<this.contourLevels[i].length;++o)o===this.highlightLevel[i]?(f.uniforms.contourColor=this.highlightColor[i],f.uniforms.contourTint=this.highlightTint[i]):0!==o&&o-1!==this.highlightLevel[i]||(f.uniforms.contourColor=this.contourColor[i],f.uniforms.contourTint=this.contourTint[i]),this._contourCounts[i][o]&&(f.uniforms.height=this.contourLevels[i][o],h.draw(r.LINES,this._contourCounts[i][o],this._contourOffsets[i][o]));for(i=0;i<3;++i)for(f.uniforms.model=u.projections[i],f.uniforms.clipBounds=u.clipBounds[i],o=0;o<3;++o)if(this.contourProject[i][o]){f.uniforms.permutation=A[o],r.lineWidth(this.contourWidth[o]*this.pixelRatio);for(var g=0;g<this.contourLevels[o].length;++g)g===this.highlightLevel[o]?(f.uniforms.contourColor=this.highlightColor[o],f.uniforms.contourTint=this.highlightTint[o]):0!==g&&g-1!==this.highlightLevel[o]||(f.uniforms.contourColor=this.contourColor[o],f.uniforms.contourTint=this.contourTint[o]),this._contourCounts[o][g]&&(f.uniforms.height=this.contourLevels[o][g],h.draw(r.LINES,this._contourCounts[o][g],this._contourOffsets[o][g]))}for(h.unbind(),(h=this._dynamicVAO).bind(),i=0;i<3;++i)if(0!==this._dynamicCounts[i])for(f.uniforms.model=n.model,f.uniforms.clipBounds=n.clipBounds,f.uniforms.permutation=A[i],r.lineWidth(this.dynamicWidth[i]*this.pixelRatio),f.uniforms.contourColor=this.dynamicColor[i],f.uniforms.contourTint=this.dynamicTint[i],f.uniforms.height=this.dynamicLevel[i],h.draw(r.LINES,this._dynamicCounts[i],this._dynamicOffsets[i]),o=0;o<3;++o)this.contourProject[o][i]&&(f.uniforms.model=u.projections[o],f.uniforms.clipBounds=u.clipBounds[o],h.draw(r.LINES,this._dynamicCounts[i],this._dynamicOffsets[i]));h.unbind()}}C.draw=function(t){return R.call(this,t,!1)},C.drawTransparent=function(t){return R.call(this,t,!0)};var F={model:k,view:k,projection:k,inverseModel:k,clipBounds:[[0,0,0],[0,0,0]],height:0,shape:[0,0],pickId:0,lowerBound:[0,0,0],upperBound:[0,0,0],zOffset:0,objectOffset:[0,0,0],permutation:[1,0,0,0,1,0,0,0,1],lightPosition:[0,0,0],eyePosition:[0,0,0]};function B(t,e){return Array.isArray(t)?[e(t[0]),e(t[1]),e(t[2])]:[e(t),e(t),e(t)]}function N(t){return Array.isArray(t)?3===t.length?[t[0],t[1],t[2],1]:[t[0],t[1],t[2],t[3]]:[0,0,0,1]}function j(t){if(Array.isArray(t)){if(Array.isArray(t))return[N(t[0]),N(t[1]),N(t[2])];var e=N(t);return[e.slice(),e.slice(),e.slice()]}}C.drawPick=function(t){t=t||{};var e=this.gl;e.disable(e.CULL_FACE);var r=F;r.model=t.model||k,r.view=t.view||k,r.projection=t.projection||k,r.shape=this._field[2].shape,r.pickId=this.pickId/255,r.lowerBound=this.bounds[0],r.upperBound=this.bounds[1],r.objectOffset=this.objectOffset,r.permutation=P;for(var n=0;n<2;++n)for(var i=r.clipBounds[n],a=0;a<3;++a)i[a]=Math.min(Math.max(this.clipBounds[n][a],-1e8),1e8);var o=O(r,this);if(o.showSurface){for(this._pickShader.bind(),this._pickShader.uniforms=r,this._vao.bind(),this._vao.draw(e.TRIANGLES,this._vertexCount),n=0;n<3;++n)this.surfaceProject[n]&&(this._pickShader.uniforms.model=o.projections[n],this._pickShader.uniforms.clipBounds=o.clipBounds[n],this._vao.draw(e.TRIANGLES,this._vertexCount));this._vao.unbind()}if(o.showContour){var s=this._contourPickShader;s.bind(),s.uniforms=r;var l=this._contourVAO;for(l.bind(),a=0;a<3;++a)for(e.lineWidth(this.contourWidth[a]*this.pixelRatio),s.uniforms.permutation=A[a],n=0;n<this.contourLevels[a].length;++n)this._contourCounts[a][n]&&(s.uniforms.height=this.contourLevels[a][n],l.draw(e.LINES,this._contourCounts[a][n],this._contourOffsets[a][n]));for(n=0;n<3;++n)for(s.uniforms.model=o.projections[n],s.uniforms.clipBounds=o.clipBounds[n],a=0;a<3;++a)if(this.contourProject[n][a]){s.uniforms.permutation=A[a],e.lineWidth(this.contourWidth[a]*this.pixelRatio);for(var c=0;c<this.contourLevels[a].length;++c)this._contourCounts[a][c]&&(s.uniforms.height=this.contourLevels[a][c],l.draw(e.LINES,this._contourCounts[a][c],this._contourOffsets[a][c]))}l.unbind()}},C.pick=function(t){if(!t)return null;if(t.id!==this.pickId)return null;var e=this._field[2].shape,r=this._pickResult,n=e[0]*(t.value[0]+(t.value[2]>>4)/16)/255,i=Math.floor(n),a=n-i,o=e[1]*(t.value[1]+(15&t.value[2])/16)/255,s=Math.floor(o),l=o-s;i+=1,s+=1;var c=r.position;c[0]=c[1]=c[2]=0;for(var u=0;u<2;++u)for(var f=u?a:1-a,h=0;h<2;++h)for(var p=i+u,d=s+h,v=f*(h?l:1-l),m=0;m<3;++m)c[m]+=this._field[m].get(p,d)*v;for(var y=this._pickResult.level,x=0;x<3;++x)if(y[x]=g.le(this.contourLevels[x],c[x]),y[x]<0)this.contourLevels[x].length>0&&(y[x]=0);else if(y[x]<this.contourLevels[x].length-1){var b=this.contourLevels[x][y[x]],_=this.contourLevels[x][y[x]+1];Math.abs(b-c[x])>Math.abs(_-c[x])&&(y[x]+=1)}for(r.index[0]=a<.5?i:i+1,r.index[1]=l<.5?s:s+1,r.uv[0]=n/e[0],r.uv[1]=o/e[1],m=0;m<3;++m)r.dataCoordinate[m]=this._field[m].get(r.index[0],r.index[1]);return r},C.padField=function(t,e){var r=e.shape.slice(),n=t.shape.slice();c.assign(t.lo(1,1).hi(r[0],r[1]),e),c.assign(t.lo(1).hi(r[0],1),e.hi(r[0],1)),c.assign(t.lo(1,n[1]-1).hi(r[0],1),e.lo(0,r[1]-1).hi(r[0],1)),c.assign(t.lo(0,1).hi(1,r[1]),e.hi(1)),c.assign(t.lo(n[0]-1,1).hi(1,r[1]),e.lo(r[0]-1)),t.set(0,0,e.get(0,0)),t.set(0,n[1]-1,e.get(0,r[1]-1)),t.set(n[0]-1,0,e.get(r[0]-1,0)),t.set(n[0]-1,n[1]-1,e.get(r[0]-1,r[1]-1))},C.update=function(t){t=t||{},this.objectOffset=t.objectOffset||this.objectOffset,this.dirty=!0,"contourWidth"in t&&(this.contourWidth=B(t.contourWidth,Number)),"showContour"in t&&(this.showContour=B(t.showContour,Boolean)),"showSurface"in t&&(this.showSurface=!!t.showSurface),"contourTint"in t&&(this.contourTint=B(t.contourTint,Boolean)),"contourColor"in t&&(this.contourColor=j(t.contourColor)),"contourProject"in t&&(this.contourProject=B(t.contourProject,function(t){return B(t,Boolean)})),"surfaceProject"in t&&(this.surfaceProject=t.surfaceProject),"dynamicColor"in t&&(this.dynamicColor=j(t.dynamicColor)),"dynamicTint"in t&&(this.dynamicTint=B(t.dynamicTint,Number)),"dynamicWidth"in t&&(this.dynamicWidth=B(t.dynamicWidth,Number)),"opacity"in t&&(this.opacity=t.opacity),"colorBounds"in t&&(this.colorBounds=t.colorBounds),"vertexColor"in t&&(this.vertexColor=t.vertexColor?1:0);var e=t.field||t.coords&&t.coords[2]||null,r=!1;if(e||(e=this._field[2].shape[0]||this._field[2].shape[2]?this._field[2].lo(1,1).hi(this._field[2].shape[0]-2,this._field[2].shape[1]-2):this._field[2].hi(0,0)),"field"in t||"coords"in t){var i=(e.shape[0]+2)*(e.shape[1]+2);i>this._field[2].data.length&&(s.freeFloat(this._field[2].data),this._field[2].data=s.mallocFloat(n.nextPow2(i))),this._field[2]=f(this._field[2].data,[e.shape[0]+2,e.shape[1]+2]),this.padField(this._field[2],e),this.shape=e.shape.slice();for(var a=this.shape,o=0;o<2;++o)this._field[2].size>this._field[o].data.length&&(s.freeFloat(this._field[o].data),this._field[o].data=s.mallocFloat(this._field[2].size)),this._field[o]=f(this._field[o].data,[a[0]+2,a[1]+2]);if(t.coords){var p=t.coords;if(!Array.isArray(p)||3!==p.length)throw new Error("gl-surface: invalid coordinates for x/y");for(o=0;o<2;++o){var d=p[o];for(b=0;b<2;++b)if(d.shape[b]!==a[b])throw new Error("gl-surface: coords have incorrect shape");this.padField(this._field[o],d)}}else if(t.ticks){var g=t.ticks;if(!Array.isArray(g)||2!==g.length)throw new Error("gl-surface: invalid ticks");for(o=0;o<2;++o){var m=g[o];if((Array.isArray(m)||m.length)&&(m=f(m)),m.shape[0]!==a[o])throw new Error("gl-surface: invalid tick length");var y=f(m.data,a);y.stride[o]=m.stride[0],y.stride[1^o]=0,this.padField(this._field[o],y)}}else{for(o=0;o<2;++o){var x=[0,0];x[o]=1,this._field[o]=f(this._field[o].data,[a[0]+2,a[1]+2],x,0)}this._field[0].set(0,0,0);for(var b=0;b<a[0];++b)this._field[0].set(b+1,0,b);for(this._field[0].set(a[0]+1,0,a[0]-1),this._field[1].set(0,0,0),b=0;b<a[1];++b)this._field[1].set(0,b+1,b);this._field[1].set(0,a[1]+1,a[1]-1)}var _=this._field,w=f(s.mallocFloat(3*_[2].size*2),[3,a[0]+2,a[1]+2,2]);for(o=0;o<3;++o)v(w.pick(o),_[o],"mirror");var k=f(s.mallocFloat(3*_[2].size),[a[0]+2,a[1]+2,3]);for(o=0;o<a[0]+2;++o)for(b=0;b<a[1]+2;++b){var A=w.get(0,o,b,0),M=w.get(0,o,b,1),E=w.get(1,o,b,0),C=w.get(1,o,b,1),L=w.get(2,o,b,0),z=w.get(2,o,b,1),O=E*z-C*L,I=L*M-z*A,D=A*C-M*E,P=Math.sqrt(O*O+I*I+D*D);P<1e-8?(P=Math.max(Math.abs(O),Math.abs(I),Math.abs(D)))<1e-8?(D=1,I=O=0,P=1):P=1/P:P=1/Math.sqrt(P),k.set(o,b,0,O*P),k.set(o,b,1,I*P),k.set(o,b,2,D*P)}s.free(w.data);var R=[1/0,1/0,1/0],F=[-1/0,-1/0,-1/0],N=1/0,V=-1/0,U=(a[0]-1)*(a[1]-1)*6,H=s.mallocFloat(n.nextPow2(10*U)),q=0,G=0;for(o=0;o<a[0]-1;++o)t:for(b=0;b<a[1]-1;++b){for(var Y=0;Y<2;++Y)for(var W=0;W<2;++W)for(var X=0;X<3;++X){var Z=this._field[X].get(1+o+Y,1+b+W);if(isNaN(Z)||!isFinite(Z))continue t}for(X=0;X<6;++X){var $=o+T[X][0],J=b+T[X][1],K=this._field[0].get($+1,J+1),Q=this._field[1].get($+1,J+1);Z=this._field[2].get($+1,J+1),O=k.get($+1,J+1,0),I=k.get($+1,J+1,1),D=k.get($+1,J+1,2),t.intensity&&(tt=t.intensity.get($,J));var tt=t.intensity?t.intensity.get($,J):Z+this.objectOffset[2];H[q++]=$,H[q++]=J,H[q++]=K,H[q++]=Q,H[q++]=Z,H[q++]=0,H[q++]=tt,H[q++]=O,H[q++]=I,H[q++]=D,R[0]=Math.min(R[0],K+this.objectOffset[0]),R[1]=Math.min(R[1],Q+this.objectOffset[1]),R[2]=Math.min(R[2],Z+this.objectOffset[2]),N=Math.min(N,tt),F[0]=Math.max(F[0],K+this.objectOffset[0]),F[1]=Math.max(F[1],Q+this.objectOffset[1]),F[2]=Math.max(F[2],Z+this.objectOffset[2]),V=Math.max(V,tt),G+=1}}for(t.intensityBounds&&(N=+t.intensityBounds[0],V=+t.intensityBounds[1]),o=6;o<q;o+=10)H[o]=(H[o]-N)/(V-N);this._vertexCount=G,this._coordinateBuffer.update(H.subarray(0,q)),s.freeFloat(H),s.free(k.data),this.bounds=[R,F],this.intensity=t.intensity||this._field[2],this.intensityBounds[0]===N&&this.intensityBounds[1]===V||(r=!0),this.intensityBounds=[N,V]}if("levels"in t){var et=t.levels;for(et=Array.isArray(et[0])?et.slice():[[],[],et],o=0;o<3;++o)et[o]=et[o].slice(),et[o].sort(function(t,e){return t-e});for(o=0;o<3;++o)for(b=0;b<et[o].length;++b)et[o][b]-=this.objectOffset[o];t:for(o=0;o<3;++o){if(et[o].length!==this.contourLevels[o].length){r=!0;break}for(b=0;b<et[o].length;++b)if(et[o][b]!==this.contourLevels[o][b]){r=!0;break t}}this.contourLevels=et}if(r){_=this._field,a=this.shape;for(var rt=[],nt=0;nt<3;++nt){var it=this.contourLevels[nt],at=[],ot=[],st=[0,0,0];for(o=0;o<it.length;++o){var lt=h(this._field[nt],it[o]);at.push(rt.length/5|0),G=0;t:for(b=0;b<lt.cells.length;++b){var ct=lt.cells[b];for(X=0;X<2;++X){var ut=lt.positions[ct[X]],ft=ut[0],ht=0|Math.floor(ft),pt=ft-ht,dt=ut[1],gt=0|Math.floor(dt),vt=dt-gt,mt=!1;e:for(var yt=0;yt<3;++yt){st[yt]=0;var xt=(nt+yt+1)%3;for(Y=0;Y<2;++Y){var bt=Y?pt:1-pt;for($=0|Math.min(Math.max(ht+Y,0),a[0]),W=0;W<2;++W){var _t=W?vt:1-vt;if(J=0|Math.min(Math.max(gt+W,0),a[1]),Z=yt<2?this._field[xt].get($,J):(this.intensity.get($,J)-this.intensityBounds[0])/(this.intensityBounds[1]-this.intensityBounds[0]),!isFinite(Z)||isNaN(Z)){mt=!0;break e}var wt=bt*_t;st[yt]+=wt*Z}}}if(mt){if(X>0){for(var kt=0;kt<5;++kt)rt.pop();G-=1}continue t}rt.push(st[0],st[1],ut[0],ut[1],st[2]),G+=1}}ot.push(G)}this._contourOffsets[nt]=at,this._contourCounts[nt]=ot}var Tt=s.mallocFloat(rt.length);for(o=0;o<rt.length;++o)Tt[o]=rt[o];this._contourBuffer.update(Tt),s.freeFloat(Tt)}t.colormap&&this._colorMap.setPixels(function(t){var e=u([l({colormap:t,nshades:S,format:"rgba"}).map(function(t){return[t[0],t[1],t[2],255*t[3]]})]);return c.divseq(e,255),e}(t.colormap))},C.dispose=function(){this._shader.dispose(),this._vao.dispose(),this._coordinateBuffer.dispose(),this._colorMap.dispose(),this._contourBuffer.dispose(),this._contourVAO.dispose(),this._contourShader.dispose(),this._contourPickShader.dispose(),this._dynamicBuffer.dispose(),this._dynamicVAO.dispose();for(var t=0;t<3;++t)s.freeFloat(this._field[t].data)},C.highlight=function(t){var e,r;if(!t)return this._dynamicCounts=[0,0,0],this.dyanamicLevel=[NaN,NaN,NaN],void(this.highlightLevel=[-1,-1,-1]);for(e=0;e<3;++e)this.enableHighlight[e]?this.highlightLevel[e]=t.level[e]:this.highlightLevel[e]=-1;for(r=this.snapToData?t.dataCoordinate:t.position,e=0;e<3;++e)r[e]-=this.objectOffset[e];if(this.enableDynamic[0]&&r[0]!==this.dynamicLevel[0]||this.enableDynamic[1]&&r[1]!==this.dynamicLevel[1]||this.enableDynamic[2]&&r[2]!==this.dynamicLevel[2]){for(var n=0,i=this.shape,a=s.mallocFloat(12*i[0]*i[1]),o=0;o<3;++o)if(this.enableDynamic[o]){this.dynamicLevel[o]=r[o];var l=(o+1)%3,c=(o+2)%3,u=this._field[o],f=this._field[l],p=this._field[c],d=h(u,r[o]),g=d.cells,v=d.positions;for(this._dynamicOffsets[o]=n,e=0;e<g.length;++e)for(var m=g[e],y=0;y<2;++y){var x=v[m[y]],b=+x[0],_=0|b,w=0|Math.min(_+1,i[0]),k=b-_,T=1-k,A=+x[1],M=0|A,S=0|Math.min(M+1,i[1]),E=A-M,C=1-E,L=T*C,z=T*E,O=k*C,I=k*E,D=L*f.get(_,M)+z*f.get(_,S)+O*f.get(w,M)+I*f.get(w,S),P=L*p.get(_,M)+z*p.get(_,S)+O*p.get(w,M)+I*p.get(w,S);if(isNaN(D)||isNaN(P)){y&&(n-=1);break}a[2*n+0]=D,a[2*n+1]=P,n+=1}this._dynamicCounts[o]=n-this._dynamicOffsets[o]}else this.dynamicLevel[o]=NaN,this._dynamicCounts[o]=0;this._dynamicBuffer.update(a.subarray(0,2*n)),s.freeFloat(a)}}},{"./lib/shaders":313,"binary-search-bounds":314,"bit-twiddle":85,colormap:119,"gl-buffer":240,"gl-mat4/invert":264,"gl-mat4/multiply":266,"gl-texture2d":317,"gl-vao":322,ndarray:445,"ndarray-gradient":436,"ndarray-ops":439,"ndarray-pack":440,"surface-nets":518,"typedarray-pool":532}],316:[function(t,e,r){"use strict";var n=t("css-font"),i=t("pick-by-alias"),a=t("regl"),o=t("gl-util/context"),s=t("es6-weak-map"),l=t("color-normalize"),c=t("font-atlas"),u=t("typedarray-pool"),f=t("parse-rect"),h=t("is-plain-obj"),p=t("parse-unit"),d=t("to-px"),g=t("detect-kerning"),v=t("object-assign"),m=t("font-measure"),y=t("flatten-vertex-data"),x=t("bit-twiddle").nextPow2,b=new s,_=!1;if(document.body){var w=document.body.appendChild(document.createElement("div"));w.style.font="italic small-caps bold condensed 16px/2 cursive",getComputedStyle(w).fontStretch&&(_=!0),document.body.removeChild(w)}var k=function(t){!function(t){return"function"==typeof t&&t._gl&&t.prop&&t.texture&&t.buffer}(t)?this.gl=o(t):(t={regl:t},this.gl=t.regl._gl),this.shader=b.get(this.gl),this.shader?this.regl=this.shader.regl:this.regl=t.regl||a({gl:this.gl}),this.charBuffer=this.regl.buffer({type:"uint8",usage:"stream"}),this.sizeBuffer=this.regl.buffer({type:"float",usage:"stream"}),this.shader||(this.shader=this.createShader(),b.set(this.gl,this.shader)),this.batch=[],this.fontSize=[],this.font=[],this.fontAtlas=[],this.draw=this.shader.draw.bind(this),this.render=function(){this.regl._refresh(),this.draw(this.batch)},this.canvas=this.gl.canvas,this.update(h(t)?t:{})};k.prototype.createShader=function(){var t=this.regl,e=t({blend:{enable:!0,color:[0,0,0,1],func:{srcRGB:"src alpha",dstRGB:"one minus src alpha",srcAlpha:"one minus dst alpha",dstAlpha:"one"}},stencil:{enable:!1},depth:{enable:!1},count:t.prop("count"),offset:t.prop("offset"),attributes:{charOffset:{offset:4,stride:8,buffer:t.this("sizeBuffer")},width:{offset:0,stride:8,buffer:t.this("sizeBuffer")},char:t.this("charBuffer"),position:t.this("position")},uniforms:{atlasSize:function(t,e){return[e.atlas.width,e.atlas.height]},atlasDim:function(t,e){return[e.atlas.cols,e.atlas.rows]},atlas:function(t,e){return e.atlas.texture},charStep:function(t,e){return e.atlas.step},em:function(t,e){return e.atlas.em},color:t.prop("color"),opacity:t.prop("opacity"),viewport:t.this("viewportArray"),scale:t.this("scale"),align:t.prop("align"),baseline:t.prop("baseline"),translate:t.this("translate"),positionOffset:t.prop("positionOffset")},primitive:"points",viewport:t.this("viewport"),vert:"\n\t\t\tprecision highp float;\n\t\t\tattribute float width, charOffset, char;\n\t\t\tattribute vec2 position;\n\t\t\tuniform float fontSize, charStep, em, align, baseline;\n\t\t\tuniform vec4 viewport;\n\t\t\tuniform vec4 color;\n\t\t\tuniform vec2 atlasSize, atlasDim, scale, translate, positionOffset;\n\t\t\tvarying vec2 charCoord, charId;\n\t\t\tvarying float charWidth;\n\t\t\tvarying vec4 fontColor;\n\t\t\tvoid main () {\n\t\t\t\t"+(k.normalViewport?"":"vec2 positionOffset = vec2(positionOffset.x,- positionOffset.y);")+"\n\n\t\t\t\tvec2 offset = floor(em * (vec2(align + charOffset, baseline)\n\t\t\t\t\t+ positionOffset))\n\t\t\t\t\t/ (viewport.zw * scale.xy);\n\n\t\t\t\tvec2 position = (position + translate) * scale;\n\t\t\t\tposition += offset * scale;\n\n\t\t\t\t"+(k.normalViewport?"position.y = 1. - position.y;":"")+"\n\n\t\t\t\tcharCoord = position * viewport.zw + viewport.xy;\n\n\t\t\t\tgl_Position = vec4(position * 2. - 1., 0, 1);\n\n\t\t\t\tgl_PointSize = charStep;\n\n\t\t\t\tcharId.x = mod(char, atlasDim.x);\n\t\t\t\tcharId.y = floor(char / atlasDim.x);\n\n\t\t\t\tcharWidth = width * em;\n\n\t\t\t\tfontColor = color / 255.;\n\t\t\t}",frag:"\n\t\t\tprecision highp float;\n\t\t\tuniform sampler2D atlas;\n\t\t\tuniform float fontSize, charStep, opacity;\n\t\t\tuniform vec2 atlasSize;\n\t\t\tuniform vec4 viewport;\n\t\t\tvarying vec4 fontColor;\n\t\t\tvarying vec2 charCoord, charId;\n\t\t\tvarying float charWidth;\n\n\t\t\tfloat lightness(vec4 color) {\n\t\t\t\treturn color.r * 0.299 + color.g * 0.587 + color.b * 0.114;\n\t\t\t}\n\n\t\t\tvoid main () {\n\t\t\t\tvec2 uv = gl_FragCoord.xy - charCoord + charStep * .5;\n\t\t\t\tfloat halfCharStep = floor(charStep * .5 + .5);\n\n\t\t\t\t// invert y and shift by 1px (FF expecially needs that)\n\t\t\t\tuv.y = charStep - uv.y;\n\n\t\t\t\t// ignore points outside of character bounding box\n\t\t\t\tfloat halfCharWidth = ceil(charWidth * .5);\n\t\t\t\tif (floor(uv.x) > halfCharStep + halfCharWidth ||\n\t\t\t\t\tfloor(uv.x) < halfCharStep - halfCharWidth) return;\n\n\t\t\t\tuv += charId * charStep;\n\t\t\t\tuv = uv / atlasSize;\n\n\t\t\t\tvec4 color = fontColor;\n\t\t\t\tvec4 mask = texture2D(atlas, uv);\n\n\t\t\t\tfloat maskY = lightness(mask);\n\t\t\t\t// float colorY = lightness(color);\n\t\t\t\tcolor.a *= maskY;\n\t\t\t\tcolor.a *= opacity;\n\n\t\t\t\t// color.a += .1;\n\n\t\t\t\t// antialiasing, see yiq color space y-channel formula\n\t\t\t\t// color.rgb += (1. - color.rgb) * (1. - mask.rgb);\n\n\t\t\t\tgl_FragColor = color;\n\t\t\t}"});return{regl:t,draw:e,atlas:{}}},k.prototype.update=function(t){var e=this;if("string"==typeof t)t={text:t};else if(!t)return;null!=(t=i(t,{position:"position positions coord coords coordinates",font:"font fontFace fontface typeface cssFont css-font family fontFamily",fontSize:"fontSize fontsize size font-size",text:"text texts chars characters value values symbols",align:"align alignment textAlign textbaseline",baseline:"baseline textBaseline textbaseline",direction:"dir direction textDirection",color:"color colour fill fill-color fillColor textColor textcolor",kerning:"kerning kern",range:"range dataBox",viewport:"vp viewport viewBox viewbox viewPort",opacity:"opacity alpha transparency visible visibility opaque",offset:"offset positionOffset padding shift indent indentation"},!0)).opacity&&(Array.isArray(t.opacity)?this.opacity=t.opacity.map(function(t){return parseFloat(t)}):this.opacity=parseFloat(t.opacity)),null!=t.viewport&&(this.viewport=f(t.viewport),k.normalViewport&&(this.viewport.y=this.canvas.height-this.viewport.y-this.viewport.height),this.viewportArray=[this.viewport.x,this.viewport.y,this.viewport.width,this.viewport.height]),null==this.viewport&&(this.viewport={x:0,y:0,width:this.gl.drawingBufferWidth,height:this.gl.drawingBufferHeight},this.viewportArray=[this.viewport.x,this.viewport.y,this.viewport.width,this.viewport.height]),null!=t.kerning&&(this.kerning=t.kerning),null!=t.offset&&("number"==typeof t.offset&&(t.offset=[t.offset,0]),this.positionOffset=y(t.offset)),t.direction&&(this.direction=t.direction),t.range&&(this.range=t.range,this.scale=[1/(t.range[2]-t.range[0]),1/(t.range[3]-t.range[1])],this.translate=[-t.range[0],-t.range[1]]),t.scale&&(this.scale=t.scale),t.translate&&(this.translate=t.translate),this.scale||(this.scale=[1/this.viewport.width,1/this.viewport.height]),this.translate||(this.translate=[0,0]),this.font.length||t.font||(t.font=k.baseFontSize+"px sans-serif");var r,a=!1,o=!1;if(t.font&&(Array.isArray(t.font)?t.font:[t.font]).forEach(function(t,r){if("string"==typeof t)try{t=n.parse(t)}catch(e){t=n.parse(k.baseFontSize+"px "+t)}else t=n.parse(n.stringify(t));var i=n.stringify({size:k.baseFontSize,family:t.family,stretch:_?t.stretch:void 0,variant:t.variant,weight:t.weight,style:t.style}),s=p(t.size),l=Math.round(s[0]*d(s[1]));if(l!==e.fontSize[r]&&(o=!0,e.fontSize[r]=l),!(e.font[r]&&i==e.font[r].baseString||(a=!0,e.font[r]=k.fonts[i],e.font[r]))){var c=t.family.join(", "),u=[t.style];t.style!=t.variant&&u.push(t.variant),t.variant!=t.weight&&u.push(t.weight),_&&t.weight!=t.stretch&&u.push(t.stretch),e.font[r]={baseString:i,family:c,weight:t.weight,stretch:t.stretch,style:t.style,variant:t.variant,width:{},kerning:{},metrics:m(c,{origin:"top",fontSize:k.baseFontSize,fontStyle:u.join(" ")})},k.fonts[i]=e.font[r]}}),(a||o)&&this.font.forEach(function(r,i){var a=n.stringify({size:e.fontSize[i],family:r.family,stretch:_?r.stretch:void 0,variant:r.variant,weight:r.weight,style:r.style});if(e.fontAtlas[i]=e.shader.atlas[a],!e.fontAtlas[i]){var o=r.metrics;e.shader.atlas[a]=e.fontAtlas[i]={fontString:a,step:2*Math.ceil(e.fontSize[i]*o.bottom*.5),em:e.fontSize[i],cols:0,rows:0,height:0,width:0,chars:[],ids:{},texture:e.regl.texture()}}null==t.text&&(t.text=e.text)}),"string"==typeof t.text&&t.position&&t.position.length>2){for(var s=Array(.5*t.position.length),h=0;h<s.length;h++)s[h]=t.text;t.text=s}if(null!=t.text||a){if(this.textOffsets=[0],Array.isArray(t.text)){this.count=t.text[0].length,this.counts=[this.count];for(var b=1;b<t.text.length;b++)e.textOffsets[b]=e.textOffsets[b-1]+t.text[b-1].length,e.count+=t.text[b].length,e.counts.push(t.text[b].length);this.text=t.text.join("")}else this.text=t.text,this.count=this.text.length,this.counts=[this.count];r=[],this.font.forEach(function(t,n){k.atlasContext.font=t.baseString;for(var i=e.fontAtlas[n],a=0;a<e.text.length;a++){var o=e.text.charAt(a);if(null==i.ids[o]&&(i.ids[o]=i.chars.length,i.chars.push(o),r.push(o)),null==t.width[o]&&(t.width[o]=k.atlasContext.measureText(o).width/k.baseFontSize,e.kerning)){var s=[];for(var l in t.width)s.push(l+o,o+l);v(t.kerning,g(t.family,{pairs:s}))}}})}if(t.position)if(t.position.length>2){for(var w=!t.position[0].length,T=u.mallocFloat(2*this.count),A=0,M=0;A<this.counts.length;A++){var S=e.counts[A];if(w)for(var E=0;E<S;E++)T[M++]=t.position[2*A],T[M++]=t.position[2*A+1];else for(var C=0;C<S;C++)T[M++]=t.position[A][0],T[M++]=t.position[A][1]}this.position.call?this.position({type:"float",data:T}):this.position=this.regl.buffer({type:"float",data:T}),u.freeFloat(T)}else this.position.destroy&&this.position.destroy(),this.position={constant:t.position};if(t.text||a){var L=u.mallocUint8(this.count),z=u.mallocFloat(2*this.count);this.textWidth=[];for(var O=0,I=0;O<this.counts.length;O++){for(var D=e.counts[O],P=e.font[O]||e.font[0],R=e.fontAtlas[O]||e.fontAtlas[0],F=0;F<D;F++){var B=e.text.charAt(I),N=e.text.charAt(I-1);if(L[I]=R.ids[B],z[2*I]=P.width[B],F){var j=z[2*I-2],V=z[2*I],U=z[2*I-1]+.5*j+.5*V;if(e.kerning){var H=P.kerning[N+B];H&&(U+=.001*H)}z[2*I+1]=U}else z[2*I+1]=.5*z[2*I];I++}e.textWidth.push(z.length?.5*z[2*I-2]+z[2*I-1]:0)}t.align||(t.align=this.align),this.charBuffer({data:L,type:"uint8",usage:"stream"}),this.sizeBuffer({data:z,type:"float",usage:"stream"}),u.freeUint8(L),u.freeFloat(z),r.length&&this.font.forEach(function(t,r){var n=e.fontAtlas[r],i=n.step,a=Math.floor(k.maxAtlasSize/i),o=Math.min(a,n.chars.length),s=Math.ceil(n.chars.length/o),l=x(o*i),u=x(s*i);n.width=l,n.height=u,n.rows=s,n.cols=o,n.em&&n.texture({data:c({canvas:k.atlasCanvas,font:n.fontString,chars:n.chars,shape:[l,u],step:[i,i]})})})}if(t.align&&(this.align=t.align,this.alignOffset=this.textWidth.map(function(t,r){var n=Array.isArray(e.align)?e.align.length>1?e.align[r]:e.align[0]:e.align;if("number"==typeof n)return n;switch(n){case"right":case"end":return-t;case"center":case"centre":case"middle":return.5*-t}return 0})),null==this.baseline&&null==t.baseline&&(t.baseline=0),null!=t.baseline&&(this.baseline=t.baseline,Array.isArray(this.baseline)||(this.baseline=[this.baseline]),this.baselineOffset=this.baseline.map(function(t,r){var n=(e.font[r]||e.font[0]).metrics,i=0;return i+=.5*n.bottom,i+="number"==typeof t?t-n.baseline:-n[t],k.normalViewport||(i*=-1),i})),null!=t.color)if(t.color||(t.color="transparent"),"string"!=typeof t.color&&isNaN(t.color)){var q;if("number"==typeof t.color[0]&&t.color.length>this.counts.length){var G=t.color.length;q=u.mallocUint8(G);for(var Y=(t.color.subarray||t.color.slice).bind(t.color),W=0;W<G;W+=4)q.set(l(Y(W,W+4),"uint8"),W)}else{var X=t.color.length;q=u.mallocUint8(4*X);for(var Z=0;Z<X;Z++)q.set(l(t.color[Z]||0,"uint8"),4*Z)}this.color=q}else this.color=l(t.color,"uint8");if(t.position||t.text||t.color||t.baseline||t.align||t.font||t.offset||t.opacity)if(this.color.length>4||this.baselineOffset.length>1||this.align&&this.align.length>1||this.fontAtlas.length>1||this.positionOffset.length>2){var $=Math.max(.5*this.position.length||0,.25*this.color.length||0,this.baselineOffset.length||0,this.alignOffset.length||0,this.font.length||0,this.opacity.length||0,.5*this.positionOffset.length||0);this.batch=Array($);for(var J=0;J<this.batch.length;J++)e.batch[J]={count:e.counts.length>1?e.counts[J]:e.counts[0],offset:e.textOffsets.length>1?e.textOffsets[J]:e.textOffsets[0],color:e.color?e.color.length<=4?e.color:e.color.subarray(4*J,4*J+4):[0,0,0,255],opacity:Array.isArray(e.opacity)?e.opacity[J]:e.opacity,baseline:null!=e.baselineOffset[J]?e.baselineOffset[J]:e.baselineOffset[0],align:e.align?null!=e.alignOffset[J]?e.alignOffset[J]:e.alignOffset[0]:0,atlas:e.fontAtlas[J]||e.fontAtlas[0],positionOffset:e.positionOffset.length>2?e.positionOffset.subarray(2*J,2*J+2):e.positionOffset}}else this.count?this.batch=[{count:this.count,offset:0,color:this.color||[0,0,0,255],opacity:Array.isArray(this.opacity)?this.opacity[0]:this.opacity,baseline:this.baselineOffset[0],align:this.alignOffset?this.alignOffset[0]:0,atlas:this.fontAtlas[0],positionOffset:this.positionOffset}]:this.batch=[]},k.prototype.destroy=function(){},k.prototype.kerning=!0,k.prototype.position={constant:new Float32Array(2)},k.prototype.translate=null,k.prototype.scale=null,k.prototype.font=null,k.prototype.text="",k.prototype.positionOffset=[0,0],k.prototype.opacity=1,k.prototype.color=new Uint8Array([0,0,0,255]),k.prototype.alignOffset=[0,0],k.normalViewport=!1,k.maxAtlasSize=1024,k.atlasCanvas=document.createElement("canvas"),k.atlasContext=k.atlasCanvas.getContext("2d",{alpha:!1}),k.baseFontSize=64,k.fonts={},e.exports=k},{"bit-twiddle":85,"color-normalize":113,"css-font":132,"detect-kerning":160,"es6-weak-map":219,"flatten-vertex-data":226,"font-atlas":227,"font-measure":228,"gl-util/context":318,"is-plain-obj":417,"object-assign":449,"parse-rect":454,"parse-unit":456,"pick-by-alias":460,regl:489,"to-px":526,"typedarray-pool":532}],317:[function(t,e,r){"use strict";var n=t("ndarray"),i=t("ndarray-ops"),a=t("typedarray-pool");e.exports=function(t){if(arguments.length<=1)throw new Error("gl-texture2d: Missing arguments for texture2d constructor");o||function(t){o=[t.LINEAR,t.NEAREST_MIPMAP_LINEAR,t.LINEAR_MIPMAP_NEAREST,t.LINEAR_MIPMAP_NEAREST],s=[t.NEAREST,t.LINEAR,t.NEAREST_MIPMAP_NEAREST,t.NEAREST_MIPMAP_LINEAR,t.LINEAR_MIPMAP_NEAREST,t.LINEAR_MIPMAP_LINEAR],l=[t.REPEAT,t.CLAMP_TO_EDGE,t.MIRRORED_REPEAT]}(t);if("number"==typeof arguments[1])return v(t,arguments[1],arguments[2],arguments[3]||t.RGBA,arguments[4]||t.UNSIGNED_BYTE);if(Array.isArray(arguments[1]))return v(t,0|arguments[1][0],0|arguments[1][1],arguments[2]||t.RGBA,arguments[3]||t.UNSIGNED_BYTE);if("object"==typeof arguments[1]){var e=arguments[1],r=c(e)?e:e.raw;if(r)return function(t,e,r,n,i,a){var o=g(t);return t.texImage2D(t.TEXTURE_2D,0,i,i,a,e),new h(t,o,r,n,i,a)}(t,r,0|e.width,0|e.height,arguments[2]||t.RGBA,arguments[3]||t.UNSIGNED_BYTE);if(e.shape&&e.data&&e.stride)return function(t,e){var r=e.dtype,o=e.shape.slice(),s=t.getParameter(t.MAX_TEXTURE_SIZE);if(o[0]<0||o[0]>s||o[1]<0||o[1]>s)throw new Error("gl-texture2d: Invalid texture size");var l=d(o,e.stride.slice()),c=0;"float32"===r?c=t.FLOAT:"float64"===r?(c=t.FLOAT,l=!1,r="float32"):"uint8"===r?c=t.UNSIGNED_BYTE:(c=t.UNSIGNED_BYTE,l=!1,r="uint8");var f,p,v=0;if(2===o.length)v=t.LUMINANCE,o=[o[0],o[1],1],e=n(e.data,o,[e.stride[0],e.stride[1],1],e.offset);else{if(3!==o.length)throw new Error("gl-texture2d: Invalid shape for texture");if(1===o[2])v=t.ALPHA;else if(2===o[2])v=t.LUMINANCE_ALPHA;else if(3===o[2])v=t.RGB;else{if(4!==o[2])throw new Error("gl-texture2d: Invalid shape for pixel coords");v=t.RGBA}}c!==t.FLOAT||t.getExtension("OES_texture_float")||(c=t.UNSIGNED_BYTE,l=!1);var m=e.size;if(l)f=0===e.offset&&e.data.length===m?e.data:e.data.subarray(e.offset,e.offset+m);else{var y=[o[2],o[2]*o[0],1];p=a.malloc(m,r);var x=n(p,o,y,0);"float32"!==r&&"float64"!==r||c!==t.UNSIGNED_BYTE?i.assign(x,e):u(x,e),f=p.subarray(0,m)}var b=g(t);t.texImage2D(t.TEXTURE_2D,0,v,o[0],o[1],0,v,c,f),l||a.free(p);return new h(t,b,o[0],o[1],v,c)}(t,e)}throw new Error("gl-texture2d: Invalid arguments for texture2d constructor")};var o=null,s=null,l=null;function c(t){return"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLVideoElement&&t instanceof HTMLVideoElement||"undefined"!=typeof ImageData&&t instanceof ImageData}var u=function(t,e){i.muls(t,e,255)};function f(t,e,r){var n=t.gl,i=n.getParameter(n.MAX_TEXTURE_SIZE);if(e<0||e>i||r<0||r>i)throw new Error("gl-texture2d: Invalid texture size");return t._shape=[e,r],t.bind(),n.texImage2D(n.TEXTURE_2D,0,t.format,e,r,0,t.format,t.type,null),t._mipLevels=[0],t}function h(t,e,r,n,i,a){this.gl=t,this.handle=e,this.format=i,this.type=a,this._shape=[r,n],this._mipLevels=[0],this._magFilter=t.NEAREST,this._minFilter=t.NEAREST,this._wrapS=t.CLAMP_TO_EDGE,this._wrapT=t.CLAMP_TO_EDGE,this._anisoSamples=1;var o=this,s=[this._wrapS,this._wrapT];Object.defineProperties(s,[{get:function(){return 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Math.ceil(t/e)*e}Wr.serialize=function(t,e){return t._trim(),e&&(t.isTransferred=!0,e.push(t.arrayBuffer)),{length:t.length,arrayBuffer:t.arrayBuffer}},Wr.deserialize=function(t){var e=Object.create(this.prototype);return e.arrayBuffer=t.arrayBuffer,e.length=t.length,e.capacity=t.arrayBuffer.byteLength/e.bytesPerElement,e._refreshViews(),e},Wr.prototype._trim=function(){this.length!==this.capacity&&(this.capacity=this.length,this.arrayBuffer=this.arrayBuffer.slice(0,this.length*this.bytesPerElement),this._refreshViews())},Wr.prototype.clear=function(){this.length=0},Wr.prototype.resize=function(t){this.reserve(t),this.length=t},Wr.prototype.reserve=function(t){if(t>this.capacity){this.capacity=Math.max(t,Math.floor(5*this.capacity),128),this.arrayBuffer=new ArrayBuffer(this.capacity*this.bytesPerElement);var e=this.uint8;this._refreshViews(),e&&this.uint8.set(e)}},Wr.prototype._refreshViews=function(){throw new Error("_refreshViews() must be implemented by each concrete StructArray 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Kr=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r,n,i,a){var o=this.length;this.resize(o+1);var s=6*o;return this.int16[s+0]=t,this.int16[s+1]=e,this.int16[s+2]=r,this.int16[s+3]=n,this.int16[s+4]=i,this.int16[s+5]=a,o},e}(Wr);Kr.prototype.bytesPerElement=12,pr("StructArrayLayout2i4i12",Kr);var Qr=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r,n,i,a,o,s){var l=this.length;this.resize(l+1);var c=6*l,u=12*l;return this.int16[c+0]=t,this.int16[c+1]=e,this.int16[c+2]=r,this.int16[c+3]=n,this.uint8[u+8]=i,this.uint8[u+9]=a,this.uint8[u+10]=o,this.uint8[u+11]=s,l},e}(Wr);Qr.prototype.bytesPerElement=12,pr("StructArrayLayout4i4ub12",Qr);var tn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r,n,i,a,o,s){var l=this.length;this.resize(l+1);var c=8*l;return this.int16[c+0]=t,this.int16[c+1]=e,this.int16[c+2]=r,this.int16[c+3]=n,this.uint16[c+4]=i,this.uint16[c+5]=a,this.uint16[c+6]=o,this.uint16[c+7]=s,l},e}(Wr);tn.prototype.bytesPerElement=16,pr("StructArrayLayout4i4ui16",tn);var en=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r){var n=this.length;this.resize(n+1);var i=3*n;return this.float32[i+0]=t,this.float32[i+1]=e,this.float32[i+2]=r,n},e}(Wr);en.prototype.bytesPerElement=12,pr("StructArrayLayout3f12",en);var rn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t){var e=this.length;this.resize(e+1);var r=1*e;return this.uint32[r+0]=t,e},e}(Wr);rn.prototype.bytesPerElement=4,pr("StructArrayLayout1ul4",rn);var nn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r,n,i,a,o,s,l,c,u){var f=this.length;this.resize(f+1);var h=12*f,p=6*f;return this.int16[h+0]=t,this.int16[h+1]=e,this.int16[h+2]=r,this.int16[h+3]=n,this.int16[h+4]=i,this.int16[h+5]=a,this.uint32[p+3]=o,this.uint16[h+8]=s,this.uint16[h+9]=l,this.int16[h+10]=c,this.int16[h+11]=u,f},e}(Wr);nn.prototype.bytesPerElement=24,pr("StructArrayLayout6i1ul2ui2i24",nn);var an=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r,n,i,a){var o=this.length;this.resize(o+1);var s=6*o;return this.int16[s+0]=t,this.int16[s+1]=e,this.int16[s+2]=r,this.int16[s+3]=n,this.int16[s+4]=i,this.int16[s+5]=a,o},e}(Wr);an.prototype.bytesPerElement=12,pr("StructArrayLayout2i2i2i12",an);var on=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e){var r=this.length;this.resize(r+1);var n=4*r;return this.uint8[n+0]=t,this.uint8[n+1]=e,r},e}(Wr);on.prototype.bytesPerElement=4,pr("StructArrayLayout2ub4",on);var sn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r,n,i,a,o,s,l,c,u,f,h,p){var d=this.length;this.resize(d+1);var g=20*d,v=10*d,m=40*d;return this.int16[g+0]=t,this.int16[g+1]=e,this.uint16[g+2]=r,this.uint16[g+3]=n,this.uint32[v+2]=i,this.uint32[v+3]=a,this.uint32[v+4]=o,this.uint16[g+10]=s,this.uint16[g+11]=l,this.uint16[g+12]=c,this.float32[v+7]=u,this.float32[v+8]=f,this.uint8[m+36]=h,this.uint8[m+37]=p,d},e}(Wr);sn.prototype.bytesPerElement=40,pr("StructArrayLayout2i2ui3ul3ui2f2ub40",sn);var ln=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t){var e=this.length;this.resize(e+1);var r=1*e;return this.float32[r+0]=t,e},e}(Wr);ln.prototype.bytesPerElement=4,pr("StructArrayLayout1f4",ln);var cn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r){var n=this.length;this.resize(n+1);var i=3*n;return this.int16[i+0]=t,this.int16[i+1]=e,this.int16[i+2]=r,n},e}(Wr);cn.prototype.bytesPerElement=6,pr("StructArrayLayout3i6",cn);var un=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r){var n=this.length;this.resize(n+1);var i=2*n,a=4*n;return this.uint32[i+0]=t,this.uint16[a+2]=e,this.uint16[a+3]=r,n},e}(Wr);un.prototype.bytesPerElement=8,pr("StructArrayLayout1ul2ui8",un);var fn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r){var n=this.length;this.resize(n+1);var i=3*n;return this.uint16[i+0]=t,this.uint16[i+1]=e,this.uint16[i+2]=r,n},e}(Wr);fn.prototype.bytesPerElement=6,pr("StructArrayLayout3ui6",fn);var hn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e){var r=this.length;this.resize(r+1);var n=2*r;return this.uint16[n+0]=t,this.uint16[n+1]=e,r},e}(Wr);hn.prototype.bytesPerElement=4,pr("StructArrayLayout2ui4",hn);var pn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e){var r=this.length;this.resize(r+1);var n=2*r;return this.float32[n+0]=t,this.float32[n+1]=e,r},e}(Wr);pn.prototype.bytesPerElement=8,pr("StructArrayLayout2f8",pn);var dn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer)},e.prototype.emplaceBack=function(t,e,r,n){var i=this.length;this.resize(i+1);var a=4*i;return this.float32[a+0]=t,this.float32[a+1]=e,this.float32[a+2]=r,this.float32[a+3]=n,i},e}(Wr);dn.prototype.bytesPerElement=16,pr("StructArrayLayout4f16",dn);var gn=function(t){function e(){t.apply(this,arguments)}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={anchorPointX:{configurable:!0},anchorPointY:{configurable:!0},x1:{configurable:!0},y1:{configurable:!0},x2:{configurable:!0},y2:{configurable:!0},featureIndex:{configurable:!0},sourceLayerIndex:{configurable:!0},bucketIndex:{configurable:!0},radius:{configurable:!0},signedDistanceFromAnchor:{configurable:!0},anchorPoint:{configurable:!0}};return r.anchorPointX.get=function(){return this._structArray.int16[this._pos2+0]},r.anchorPointX.set=function(t){this._structArray.int16[this._pos2+0]=t},r.anchorPointY.get=function(){return this._structArray.int16[this._pos2+1]},r.anchorPointY.set=function(t){this._structArray.int16[this._pos2+1]=t},r.x1.get=function(){return this._structArray.int16[this._pos2+2]},r.x1.set=function(t){this._structArray.int16[this._pos2+2]=t},r.y1.get=function(){return this._structArray.int16[this._pos2+3]},r.y1.set=function(t){this._structArray.int16[this._pos2+3]=t},r.x2.get=function(){return this._structArray.int16[this._pos2+4]},r.x2.set=function(t){this._structArray.int16[this._pos2+4]=t},r.y2.get=function(){return this._structArray.int16[this._pos2+5]},r.y2.set=function(t){this._structArray.int16[this._pos2+5]=t},r.featureIndex.get=function(){return this._structArray.uint32[this._pos4+3]},r.featureIndex.set=function(t){this._structArray.uint32[this._pos4+3]=t},r.sourceLayerIndex.get=function(){return this._structArray.uint16[this._pos2+8]},r.sourceLayerIndex.set=function(t){this._structArray.uint16[this._pos2+8]=t},r.bucketIndex.get=function(){return this._structArray.uint16[this._pos2+9]},r.bucketIndex.set=function(t){this._structArray.uint16[this._pos2+9]=t},r.radius.get=function(){return this._structArray.int16[this._pos2+10]},r.radius.set=function(t){this._structArray.int16[this._pos2+10]=t},r.signedDistanceFromAnchor.get=function(){return this._structArray.int16[this._pos2+11]},r.signedDistanceFromAnchor.set=function(t){this._structArray.int16[this._pos2+11]=t},r.anchorPoint.get=function(){return new l(this.anchorPointX,this.anchorPointY)},Object.defineProperties(e.prototype,r),e}(Yr);gn.prototype.size=24;var vn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.get=function(t){return new gn(this,t)},e}(nn);pr("CollisionBoxArray",vn);var mn=function(t){function e(){t.apply(this,arguments)}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={anchorX:{configurable:!0},anchorY:{configurable:!0},glyphStartIndex:{configurable:!0},numGlyphs:{configurable:!0},vertexStartIndex:{configurable:!0},lineStartIndex:{configurable:!0},lineLength:{configurable:!0},segment:{configurable:!0},lowerSize:{configurable:!0},upperSize:{configurable:!0},lineOffsetX:{configurable:!0},lineOffsetY:{configurable:!0},writingMode:{configurable:!0},hidden:{configurable:!0}};return r.anchorX.get=function(){return this._structArray.int16[this._pos2+0]},r.anchorX.set=function(t){this._structArray.int16[this._pos2+0]=t},r.anchorY.get=function(){return this._structArray.int16[this._pos2+1]},r.anchorY.set=function(t){this._structArray.int16[this._pos2+1]=t},r.glyphStartIndex.get=function(){return this._structArray.uint16[this._pos2+2]},r.glyphStartIndex.set=function(t){this._structArray.uint16[this._pos2+2]=t},r.numGlyphs.get=function(){return this._structArray.uint16[this._pos2+3]},r.numGlyphs.set=function(t){this._structArray.uint16[this._pos2+3]=t},r.vertexStartIndex.get=function(){return this._structArray.uint32[this._pos4+2]},r.vertexStartIndex.set=function(t){this._structArray.uint32[this._pos4+2]=t},r.lineStartIndex.get=function(){return this._structArray.uint32[this._pos4+3]},r.lineStartIndex.set=function(t){this._structArray.uint32[this._pos4+3]=t},r.lineLength.get=function(){return this._structArray.uint32[this._pos4+4]},r.lineLength.set=function(t){this._structArray.uint32[this._pos4+4]=t},r.segment.get=function(){return this._structArray.uint16[this._pos2+10]},r.segment.set=function(t){this._structArray.uint16[this._pos2+10]=t},r.lowerSize.get=function(){return this._structArray.uint16[this._pos2+11]},r.lowerSize.set=function(t){this._structArray.uint16[this._pos2+11]=t},r.upperSize.get=function(){return this._structArray.uint16[this._pos2+12]},r.upperSize.set=function(t){this._structArray.uint16[this._pos2+12]=t},r.lineOffsetX.get=function(){return this._structArray.float32[this._pos4+7]},r.lineOffsetX.set=function(t){this._structArray.float32[this._pos4+7]=t},r.lineOffsetY.get=function(){return this._structArray.float32[this._pos4+8]},r.lineOffsetY.set=function(t){this._structArray.float32[this._pos4+8]=t},r.writingMode.get=function(){return this._structArray.uint8[this._pos1+36]},r.writingMode.set=function(t){this._structArray.uint8[this._pos1+36]=t},r.hidden.get=function(){return this._structArray.uint8[this._pos1+37]},r.hidden.set=function(t){this._structArray.uint8[this._pos1+37]=t},Object.defineProperties(e.prototype,r),e}(Yr);mn.prototype.size=40;var yn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.get=function(t){return new mn(this,t)},e}(sn);pr("PlacedSymbolArray",yn);var xn=function(t){function e(){t.apply(this,arguments)}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={offsetX:{configurable:!0}};return r.offsetX.get=function(){return this._structArray.float32[this._pos4+0]},r.offsetX.set=function(t){this._structArray.float32[this._pos4+0]=t},Object.defineProperties(e.prototype,r),e}(Yr);xn.prototype.size=4;var bn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getoffsetX=function(t){return this.float32[1*t+0]},e.prototype.get=function(t){return new xn(this,t)},e}(ln);pr("GlyphOffsetArray",bn);var _n=function(t){function e(){t.apply(this,arguments)}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={x:{configurable:!0},y:{configurable:!0},tileUnitDistanceFromAnchor:{configurable:!0}};return r.x.get=function(){return this._structArray.int16[this._pos2+0]},r.x.set=function(t){this._structArray.int16[this._pos2+0]=t},r.y.get=function(){return this._structArray.int16[this._pos2+1]},r.y.set=function(t){this._structArray.int16[this._pos2+1]=t},r.tileUnitDistanceFromAnchor.get=function(){return this._structArray.int16[this._pos2+2]},r.tileUnitDistanceFromAnchor.set=function(t){this._structArray.int16[this._pos2+2]=t},Object.defineProperties(e.prototype,r),e}(Yr);_n.prototype.size=6;var wn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getx=function(t){return this.int16[3*t+0]},e.prototype.gety=function(t){return this.int16[3*t+1]},e.prototype.gettileUnitDistanceFromAnchor=function(t){return this.int16[3*t+2]},e.prototype.get=function(t){return new _n(this,t)},e}(cn);pr("SymbolLineVertexArray",wn);var kn=function(t){function e(){t.apply(this,arguments)}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={featureIndex:{configurable:!0},sourceLayerIndex:{configurable:!0},bucketIndex:{configurable:!0}};return r.featureIndex.get=function(){return this._structArray.uint32[this._pos4+0]},r.featureIndex.set=function(t){this._structArray.uint32[this._pos4+0]=t},r.sourceLayerIndex.get=function(){return this._structArray.uint16[this._pos2+2]},r.sourceLayerIndex.set=function(t){this._structArray.uint16[this._pos2+2]=t},r.bucketIndex.get=function(){return this._structArray.uint16[this._pos2+3]},r.bucketIndex.set=function(t){this._structArray.uint16[this._pos2+3]=t},Object.defineProperties(e.prototype,r),e}(Yr);kn.prototype.size=8;var Tn=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.get=function(t){return new kn(this,t)},e}(un);pr("FeatureIndexArray",Tn);var An=Xr([{name:"a_pos",components:2,type:"Int16"}],4).members,Mn=function(t){void 0===t&&(t=[]),this.segments=t};Mn.prototype.prepareSegment=function(t,e,r){var n=this.segments[this.segments.length-1];return t>Mn.MAX_VERTEX_ARRAY_LENGTH&&_("Max vertices per segment is "+Mn.MAX_VERTEX_ARRAY_LENGTH+": bucket requested "+t),(!n||n.vertexLength+t>Mn.MAX_VERTEX_ARRAY_LENGTH)&&(n={vertexOffset:e.length,primitiveOffset:r.length,vertexLength:0,primitiveLength:0},this.segments.push(n)),n},Mn.prototype.get=function(){return this.segments},Mn.prototype.destroy=function(){for(var t=0,e=this.segments;t<e.length;t+=1){var r=e[t];for(var n in r.vaos)r.vaos[n].destroy()}},Mn.MAX_VERTEX_ARRAY_LENGTH=Math.pow(2,16)-1,pr("SegmentVector",Mn);var Sn=function(t,e){return 256*(t=h(Math.floor(t),0,255))+h(Math.floor(e),0,255)};function En(t){return[Sn(255*t.r,255*t.g),Sn(255*t.b,255*t.a)]}var Cn=function(t,e,r){this.value=t,this.name=e,this.type=r,this.statistics={max:-1/0}};Cn.prototype.defines=function(){return["#define HAS_UNIFORM_u_"+this.name]},Cn.prototype.populatePaintArray=function(){},Cn.prototype.upload=function(){},Cn.prototype.destroy=function(){},Cn.prototype.setUniforms=function(t,e,r,n){var i=n.constantOr(this.value),a=t.gl;"color"===this.type?a.uniform4f(e.uniforms["u_"+this.name],i.r,i.g,i.b,i.a):a.uniform1f(e.uniforms["u_"+this.name],i)};var Ln=function(t,e,r){this.expression=t,this.name=e,this.type=r,this.statistics={max:-1/0};var n="color"===r?pn:ln;this.paintVertexAttributes=[{name:"a_"+e,type:"Float32",components:"color"===r?2:1,offset:0}],this.paintVertexArray=new n};Ln.prototype.defines=function(){return[]},Ln.prototype.populatePaintArray=function(t,e){var r=this.paintVertexArray,n=r.length;r.reserve(t);var i=this.expression.evaluate(new Lr(0),e);if("color"===this.type)for(var a=En(i),o=n;o<t;o++)r.emplaceBack(a[0],a[1]);else{for(var s=n;s<t;s++)r.emplaceBack(i);this.statistics.max=Math.max(this.statistics.max,i)}},Ln.prototype.upload=function(t){this.paintVertexArray&&(this.paintVertexBuffer=t.createVertexBuffer(this.paintVertexArray,this.paintVertexAttributes))},Ln.prototype.destroy=function(){this.paintVertexBuffer&&this.paintVertexBuffer.destroy()},Ln.prototype.setUniforms=function(t,e){t.gl.uniform1f(e.uniforms["a_"+this.name+"_t"],0)};var zn=function(t,e,r,n,i){this.expression=t,this.name=e,this.type=r,this.useIntegerZoom=n,this.zoom=i,this.statistics={max:-1/0};var a="color"===r?dn:pn;this.paintVertexAttributes=[{name:"a_"+e,type:"Float32",components:"color"===r?4:2,offset:0}],this.paintVertexArray=new a};zn.prototype.defines=function(){return[]},zn.prototype.populatePaintArray=function(t,e){var r=this.paintVertexArray,n=r.length;r.reserve(t);var i=this.expression.evaluate(new Lr(this.zoom),e),a=this.expression.evaluate(new Lr(this.zoom+1),e);if("color"===this.type)for(var o=En(i),s=En(a),l=n;l<t;l++)r.emplaceBack(o[0],o[1],s[0],s[1]);else{for(var c=n;c<t;c++)r.emplaceBack(i,a);this.statistics.max=Math.max(this.statistics.max,i,a)}},zn.prototype.upload=function(t){this.paintVertexArray&&(this.paintVertexBuffer=t.createVertexBuffer(this.paintVertexArray,this.paintVertexAttributes))},zn.prototype.destroy=function(){this.paintVertexBuffer&&this.paintVertexBuffer.destroy()},zn.prototype.interpolationFactor=function(t){return this.useIntegerZoom?this.expression.interpolationFactor(Math.floor(t),this.zoom,this.zoom+1):this.expression.interpolationFactor(t,this.zoom,this.zoom+1)},zn.prototype.setUniforms=function(t,e,r){t.gl.uniform1f(e.uniforms["a_"+this.name+"_t"],this.interpolationFactor(r.zoom))};var On=function(){this.binders={},this.cacheKey="",this._buffers=[]};On.createDynamic=function(t,e,r){var n=new On,i=[];for(var a in t.paint._values)if(r(a)){var o=t.paint.get(a);if(o instanceof Fr&&o.property.specification["property-function"]){var 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this.programConfigurations[t]},In.prototype.upload=function(t){for(var e in this.programConfigurations)this.programConfigurations[e].upload(t)},In.prototype.destroy=function(){for(var t in this.programConfigurations)this.programConfigurations[t].destroy()},pr("ConstantBinder",Cn),pr("SourceExpressionBinder",Ln),pr("CompositeExpressionBinder",zn),pr("ProgramConfiguration",On,{omit:["_buffers"]}),pr("ProgramConfigurationSet",In);var Pn=8192,Rn=(16,{min:-1*Math.pow(2,15),max:Math.pow(2,15)-1});function Fn(t){for(var e=Pn/t.extent,r=t.loadGeometry(),n=0;n<r.length;n++)for(var i=r[n],a=0;a<i.length;a++){var o=i[a];o.x=Math.round(o.x*e),o.y=Math.round(o.y*e),(o.x<Rn.min||o.x>Rn.max||o.y<Rn.min||o.y>Rn.max)&&_("Geometry exceeds allowed extent, reduce your vector tile buffer size")}return r}function Bn(t,e,r,n,i){t.emplaceBack(2*e+(n+1)/2,2*r+(i+1)/2)}var Nn=function(t){this.zoom=t.zoom,this.overscaling=t.overscaling,this.layers=t.layers,this.layerIds=this.layers.map(function(t){return 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r=0;r<t.length-1;r++)for(var n=t[r],i=t[r+1],a=0;a<e.length-1;a++)if(Gn(n,i,e[a],e[a+1]))return!0;return!1}function Gn(t,e,r,n){return w(t,r,n)!==w(e,r,n)&&w(t,e,r)!==w(t,e,n)}function Yn(t,e,r){var n=r*r;if(1===e.length)return t.distSqr(e[0])<n;for(var i=1;i<e.length;i++)if(Wn(t,e[i-1],e[i])<n)return!0;return!1}function Wn(t,e,r){var n=e.distSqr(r);if(0===n)return t.distSqr(e);var i=((t.x-e.x)*(r.x-e.x)+(t.y-e.y)*(r.y-e.y))/n;return i<0?t.distSqr(e):i>1?t.distSqr(r):t.distSqr(r.sub(e)._mult(i)._add(e))}function Xn(t,e){for(var r,n,i,a=!1,o=0;o<t.length;o++)for(var s=0,l=(r=t[o]).length-1;s<r.length;l=s++)n=r[s],i=r[l],n.y>e.y!=i.y>e.y&&e.x<(i.x-n.x)*(e.y-n.y)/(i.y-n.y)+n.x&&(a=!a);return a}function Zn(t,e){for(var r=!1,n=0,i=t.length-1;n<t.length;i=n++){var a=t[n],o=t[i];a.y>e.y!=o.y>e.y&&e.x<(o.x-a.x)*(e.y-a.y)/(o.y-a.y)+a.x&&(r=!r)}return r}function $n(t,e,r){var n=e.paint.get(t).value;return"constant"===n.kind?n.value:r.programConfigurations.get(e.id).binders[t].statistics.max}function Jn(t){return Math.sqrt(t[0]*t[0]+t[1]*t[1])}function Kn(t,e,r,n,i){if(!e[0]&&!e[1])return t;var a=l.convert(e);"viewport"===r&&a._rotate(-n);for(var o=[],s=0;s<t.length;s++){for(var c=t[s],u=[],f=0;f<c.length;f++)u.push(c[f].sub(a._mult(i)));o.push(u)}return o}Nn.prototype.populate=function(t,e){for(var r=0,n=t;r<n.length;r+=1){var i=n[r],a=i.feature,o=i.index,s=i.sourceLayerIndex;if(this.layers[0]._featureFilter(new Lr(this.zoom),a)){var l=Fn(a);this.addFeature(a,l),e.featureIndex.insert(a,l,o,s,this.index)}}},Nn.prototype.isEmpty=function(){return 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c=this.segments.prepareSegment(4,this.layoutVertexArray,this.indexArray),u=c.vertexLength;Bn(this.layoutVertexArray,s,l,-1,-1),Bn(this.layoutVertexArray,s,l,1,-1),Bn(this.layoutVertexArray,s,l,1,1),Bn(this.layoutVertexArray,s,l,-1,1),this.indexArray.emplaceBack(u,u+1,u+2),this.indexArray.emplaceBack(u,u+3,u+2),c.vertexLength+=4,c.primitiveLength+=2}}this.programConfigurations.populatePaintArrays(this.layoutVertexArray.length,t)},pr("CircleBucket",Nn,{omit:["layers"]});var Qn={paint:new Hr({"circle-radius":new jr(I.paint_circle["circle-radius"]),"circle-color":new jr(I.paint_circle["circle-color"]),"circle-blur":new jr(I.paint_circle["circle-blur"]),"circle-opacity":new jr(I.paint_circle["circle-opacity"]),"circle-translate":new Nr(I.paint_circle["circle-translate"]),"circle-translate-anchor":new Nr(I.paint_circle["circle-translate-anchor"]),"circle-pitch-scale":new Nr(I.paint_circle["circle-pitch-scale"]),"circle-pitch-alignment":new Nr(I.paint_circle["circle-pitch-alignment"]),"circle-stroke-width":new jr(I.paint_circle["circle-stroke-width"]),"circle-stroke-color":new jr(I.paint_circle["circle-stroke-color"]),"circle-stroke-opacity":new jr(I.paint_circle["circle-stroke-opacity"])})},ti=i(function(t,e){var r;t.exports=((r=new Float32Array(3))[0]=0,r[1]=0,r[2]=0,function(){var t=new Float32Array(4);t[0]=0,t[1]=0,t[2]=0,t[3]=0}(),{vec3:{transformMat3:function(t,e,r){var n=e[0],i=e[1],a=e[2];return t[0]=n*r[0]+i*r[3]+a*r[6],t[1]=n*r[1]+i*r[4]+a*r[7],t[2]=n*r[2]+i*r[5]+a*r[8],t}},vec4:{transformMat4:function(t,e,r){var n=e[0],i=e[1],a=e[2],o=e[3];return t[0]=r[0]*n+r[4]*i+r[8]*a+r[12]*o,t[1]=r[1]*n+r[5]*i+r[9]*a+r[13]*o,t[2]=r[2]*n+r[6]*i+r[10]*a+r[14]*o,t[3]=r[3]*n+r[7]*i+r[11]*a+r[15]*o,t}},mat2:{create:function(){var t=new Float32Array(4);return t[0]=1,t[1]=0,t[2]=0,t[3]=1,t},rotate:function(t,e,r){var n=e[0],i=e[1],a=e[2],o=e[3],s=Math.sin(r),l=Math.cos(r);return 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E=p.dist(x);if(E>2*u){var C=p.sub(p.sub(x)._mult(u/E)._round());this.distance+=C.dist(x),this.addCurrentVertex(C,this.distance,_.mult(1),0,0,!1,h,o),x=C}}var L=x&&b,z=L?r:b?v:m;if(L&&"round"===z&&(M<a?z="miter":M<=2&&(z="fakeround")),"miter"===z&&M>i&&(z="bevel"),"bevel"===z&&(M>2&&(z="flipbevel"),M<i&&(z="miter")),x&&(this.distance+=p.dist(x)),"miter"===z)T._mult(M),this.addCurrentVertex(p,this.distance,T,0,0,!1,h,o);else if("flipbevel"===z){if(M>100)T=w.clone().mult(-1);else{var O=_.x*w.y-_.y*w.x>0?-1:1,I=M*_.add(w).mag()/_.sub(w).mag();T._perp()._mult(I*O)}this.addCurrentVertex(p,this.distance,T,0,0,!1,h,o),this.addCurrentVertex(p,this.distance,T.mult(-1),0,0,!1,h,o)}else if("bevel"===z||"fakeround"===z){var D=_.x*w.y-_.y*w.x>0,P=-Math.sqrt(M*M-1);if(D?(g=0,d=P):(d=0,g=P),y||this.addCurrentVertex(p,this.distance,_,d,g,!1,h,o),"fakeround"===z){for(var R=Math.floor(8*(.5-(A-.5))),F=void 0,B=0;B<R;B++)F=w.mult((B+1)/(R+1))._add(_)._unit(),this.addPieSliceVertex(p,this.distance,F,D,h,o);this.addPieSliceVertex(p,this.distance,T,D,h,o);for(var N=R-1;N>=0;N--)F=_.mult((N+1)/(R+1))._add(w)._unit(),this.addPieSliceVertex(p,this.distance,F,D,h,o)}b&&this.addCurrentVertex(p,this.distance,w,-d,-g,!1,h,o)}else"butt"===z?(y||this.addCurrentVertex(p,this.distance,_,0,0,!1,h,o),b&&this.addCurrentVertex(p,this.distance,w,0,0,!1,h,o)):"square"===z?(y||(this.addCurrentVertex(p,this.distance,_,1,1,!1,h,o),this.e1=this.e2=-1),b&&this.addCurrentVertex(p,this.distance,w,-1,-1,!1,h,o)):"round"===z&&(y||(this.addCurrentVertex(p,this.distance,_,0,0,!1,h,o),this.addCurrentVertex(p,this.distance,_,1,1,!0,h,o),this.e1=this.e2=-1),b&&(this.addCurrentVertex(p,this.distance,w,-1,-1,!0,h,o),this.addCurrentVertex(p,this.distance,w,0,0,!1,h,o)));if(S&&k<l-1){var j=p.dist(b);if(j>2*u){var V=p.add(b.sub(p)._mult(u/j)._round());this.distance+=V.dist(p),this.addCurrentVertex(V,this.distance,w.mult(1),0,0,!1,h,o),p=V}}y=!1}this.programConfigurations.populatePaintArrays(this.layoutVertexArray.length,e)}},wa.prototype.addCurrentVertex=function(t,e,r,n,i,a,o,s){var l,c=this.layoutVertexArray,u=this.indexArray;s&&(e=ka(e,s)),l=r.clone(),n&&l._sub(r.perp()._mult(n)),_a(c,t,l,a,!1,n,e),this.e3=o.vertexLength++,this.e1>=0&&this.e2>=0&&(u.emplaceBack(this.e1,this.e2,this.e3),o.primitiveLength++),this.e1=this.e2,this.e2=this.e3,l=r.mult(-1),i&&l._sub(r.perp()._mult(i)),_a(c,t,l,a,!0,-i,e),this.e3=o.vertexLength++,this.e1>=0&&this.e2>=0&&(u.emplaceBack(this.e1,this.e2,this.e3),o.primitiveLength++),this.e1=this.e2,this.e2=this.e3,e>ba/2&&!s&&(this.distance=0,this.addCurrentVertex(t,this.distance,r,n,i,a,o))},wa.prototype.addPieSliceVertex=function(t,e,r,n,i,a){r=r.mult(n?-1:1);var o=this.layoutVertexArray,s=this.indexArray;a&&(e=ka(e,a)),_a(o,t,r,!1,n,0,e),this.e3=i.vertexLength++,this.e1>=0&&this.e2>=0&&(s.emplaceBack(this.e1,this.e2,this.e3),i.primitiveLength++),n?this.e2=this.e3:this.e1=this.e3},pr("LineBucket",wa,{omit:["layers"]});var Ta=new Hr({"line-cap":new Nr(I.layout_line["line-cap"]),"line-join":new jr(I.layout_line["line-join"]),"line-miter-limit":new Nr(I.layout_line["line-miter-limit"]),"line-round-limit":new Nr(I.layout_line["line-round-limit"])}),Aa={paint:new Hr({"line-opacity":new jr(I.paint_line["line-opacity"]),"line-color":new jr(I.paint_line["line-color"]),"line-translate":new Nr(I.paint_line["line-translate"]),"line-translate-anchor":new Nr(I.paint_line["line-translate-anchor"]),"line-width":new jr(I.paint_line["line-width"]),"line-gap-width":new jr(I.paint_line["line-gap-width"]),"line-offset":new jr(I.paint_line["line-offset"]),"line-blur":new jr(I.paint_line["line-blur"]),"line-dasharray":new Vr(I.paint_line["line-dasharray"]),"line-pattern":new Vr(I.paint_line["line-pattern"]),"line-gradient":new Ur(I.paint_line["line-gradient"])}),layout:Ta},Ma=new(function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.possiblyEvaluate=function(e,r){return r=new Lr(Math.floor(r.zoom),{now:r.now,fadeDuration:r.fadeDuration,zoomHistory:r.zoomHistory,transition:r.transition}),t.prototype.possiblyEvaluate.call(this,e,r)},e.prototype.evaluate=function(e,r,n){return r=p({},r,{zoom:Math.floor(r.zoom)}),t.prototype.evaluate.call(this,e,r,n)},e}(jr))(Aa.paint.properties["line-width"].specification);Ma.useIntegerZoom=!0;var Sa=function(t){function e(e){t.call(this,e,Aa)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.setPaintProperty=function(e,r,n){t.prototype.setPaintProperty.call(this,e,r,n),"line-gradient"===e&&this._updateGradient()},e.prototype._updateGradient=function(){var t=this._transitionablePaint._values["line-gradient"].value.expression;this.gradient=hi(t,"lineProgress"),this.gradientTexture=null},e.prototype.recalculate=function(e){t.prototype.recalculate.call(this,e),this.paint._values["line-floorwidth"]=Ma.possiblyEvaluate(this._transitioningPaint._values["line-width"].value,e)},e.prototype.createBucket=function(t){return new wa(t)},e.prototype.queryRadius=function(t){var e=t,r=Ea($n("line-width",this,e),$n("line-gap-width",this,e)),n=$n("line-offset",this,e);return r/2+Math.abs(n)+Jn(this.paint.get("line-translate"))},e.prototype.queryIntersectsFeature=function(t,e,r,n,i,a){var o=Kn(t,this.paint.get("line-translate"),this.paint.get("line-translate-anchor"),i.angle,a),s=a/2*Ea(this.paint.get("line-width").evaluate(e),this.paint.get("line-gap-width").evaluate(e)),c=this.paint.get("line-offset").evaluate(e);return c&&(r=function(t,e){for(var r=[],n=new l(0,0),i=0;i<t.length;i++){for(var a=t[i],o=[],s=0;s<a.length;s++){var c=a[s-1],u=a[s],f=a[s+1],h=0===s?n:u.sub(c)._unit()._perp(),p=s===a.length-1?n:f.sub(u)._unit()._perp(),d=h._add(p)._unit(),g=d.x*p.x+d.y*p.y;d._mult(1/g),o.push(d._mult(e)._add(u))}r.push(o)}return r}(r,c*a)),Un(o,r,s)},e}(qr);function Ea(t,e){return e>0?e+2*t:t}var Ca=Xr([{name:"a_pos_offset",components:4,type:"Int16"},{name:"a_data",components:4,type:"Uint16"}]),La=Xr([{name:"a_projected_pos",components:3,type:"Float32"}],4),za=(Xr([{name:"a_fade_opacity",components:1,type:"Uint32"}],4),Xr([{name:"a_placed",components:2,type:"Uint8"}],4)),Oa=(Xr([{type:"Int16",name:"anchorPointX"},{type:"Int16",name:"anchorPointY"},{type:"Int16",name:"x1"},{type:"Int16",name:"y1"},{type:"Int16",name:"x2"},{type:"Int16",name:"y2"},{type:"Uint32",name:"featureIndex"},{type:"Uint16",name:"sourceLayerIndex"},{type:"Uint16",name:"bucketIndex"},{type:"Int16",name:"radius"},{type:"Int16",name:"signedDistanceFromAnchor"}]),Xr([{name:"a_pos",components:2,type:"Int16"},{name:"a_anchor_pos",components:2,type:"Int16"},{name:"a_extrude",components:2,type:"Int16"}],4)),Ia=Xr([{name:"a_pos",components:2,type:"Int16"},{name:"a_anchor_pos",components:2,type:"Int16"},{name:"a_extrude",components:2,type:"Int16"}],4);function Da(t,e,r){var n=e.layout.get("text-transform").evaluate(r);return"uppercase"===n?t=t.toLocaleUpperCase():"lowercase"===n&&(t=t.toLocaleLowerCase()),Cr.applyArabicShaping&&(t=Cr.applyArabicShaping(t)),t}Xr([{type:"Int16",name:"anchorX"},{type:"Int16",name:"anchorY"},{type:"Uint16",name:"glyphStartIndex"},{type:"Uint16",name:"numGlyphs"},{type:"Uint32",name:"vertexStartIndex"},{type:"Uint32",name:"lineStartIndex"},{type:"Uint32",name:"lineLength"},{type:"Uint16",name:"segment"},{type:"Uint16",name:"lowerSize"},{type:"Uint16",name:"upperSize"},{type:"Float32",name:"lineOffsetX"},{type:"Float32",name:"lineOffsetY"},{type:"Uint8",name:"writingMode"},{type:"Uint8",name:"hidden"}]),Xr([{type:"Float32",name:"offsetX"}]),Xr([{type:"Int16",name:"x"},{type:"Int16",name:"y"},{type:"Int16",name:"tileUnitDistanceFromAnchor"}]);var Pa={"!":"\ufe15","#":"\uff03",$:"\uff04","%":"\uff05","&":"\uff06","(":"\ufe35",")":"\ufe36","*":"\uff0a","+":"\uff0b",",":"\ufe10","-":"\ufe32",".":"\u30fb","/":"\uff0f",":":"\ufe13",";":"\ufe14","<":"\ufe3f","=":"\uff1d",">":"\ufe40","?":"\ufe16","@":"\uff20","[":"\ufe47","\\":"\uff3c","]":"\ufe48","^":"\uff3e",_:"\ufe33","`":"\uff40","{":"\ufe37","|":"\u2015","}":"\ufe38","~":"\uff5e","\xa2":"\uffe0","\xa3":"\uffe1","\xa5":"\uffe5","\xa6":"\uffe4","\xac":"\uffe2","\xaf":"\uffe3","\u2013":"\ufe32","\u2014":"\ufe31","\u2018":"\ufe43","\u2019":"\ufe44","\u201c":"\ufe41","\u201d":"\ufe42","\u2026":"\ufe19","\u2027":"\u30fb","\u20a9":"\uffe6","\u3001":"\ufe11","\u3002":"\ufe12","\u3008":"\ufe3f","\u3009":"\ufe40","\u300a":"\ufe3d","\u300b":"\ufe3e","\u300c":"\ufe41","\u300d":"\ufe42","\u300e":"\ufe43","\u300f":"\ufe44","\u3010":"\ufe3b","\u3011":"\ufe3c","\u3014":"\ufe39","\u3015":"\ufe3a","\u3016":"\ufe17","\u3017":"\ufe18","\uff01":"\ufe15","\uff08":"\ufe35","\uff09":"\ufe36","\uff0c":"\ufe10","\uff0d":"\ufe32","\uff0e":"\u30fb","\uff1a":"\ufe13","\uff1b":"\ufe14","\uff1c":"\ufe3f","\uff1e":"\ufe40","\uff1f":"\ufe16","\uff3b":"\ufe47","\uff3d":"\ufe48","\uff3f":"\ufe33","\uff5b":"\ufe37","\uff5c":"\u2015","\uff5d":"\ufe38","\uff5f":"\ufe35","\uff60":"\ufe36","\uff61":"\ufe12","\uff62":"\ufe41","\uff63":"\ufe42"},Ra=function(t){function e(e,r,n,i){t.call(this,e,r),this.angle=n,void 0!==i&&(this.segment=i)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.clone=function(){return new e(this.x,this.y,this.angle,this.segment)},e}(l);function Fa(t,e){var r=e.expression;if("constant"===r.kind)return{functionType:"constant",layoutSize:r.evaluate(new Lr(t+1))};if("source"===r.kind)return{functionType:"source"};for(var n=r.zoomStops,i=0;i<n.length&&n[i]<=t;)i++;for(var a=i=Math.max(0,i-1);a<n.length&&n[a]<t+1;)a++;a=Math.min(n.length-1,a);var o={min:n[i],max:n[a]};return"composite"===r.kind?{functionType:"composite",zoomRange:o,propertyValue:e.value}:{functionType:"camera",layoutSize:r.evaluate(new Lr(t+1)),zoomRange:o,sizeRange:{min:r.evaluate(new Lr(o.min)),max:r.evaluate(new Lr(o.max))},propertyValue:e.value}}pr("Anchor",Ra);var Ba=ga.VectorTileFeature.types,Na=[{name:"a_fade_opacity",components:1,type:"Uint8",offset:0}];function ja(t,e,r,n,i,a,o,s){t.emplaceBack(e,r,Math.round(32*n),Math.round(32*i),a,o,s?s[0]:0,s?s[1]:0)}function Va(t,e,r){t.emplaceBack(e.x,e.y,r),t.emplaceBack(e.x,e.y,r),t.emplaceBack(e.x,e.y,r),t.emplaceBack(e.x,e.y,r)}var Ua=function(t){this.layoutVertexArray=new tn,this.indexArray=new fn,this.programConfigurations=t,this.segments=new Mn,this.dynamicLayoutVertexArray=new en,this.opacityVertexArray=new rn,this.placedSymbolArray=new yn};Ua.prototype.upload=function(t,e){this.layoutVertexBuffer=t.createVertexBuffer(this.layoutVertexArray,Ca.members),this.indexBuffer=t.createIndexBuffer(this.indexArray,e),this.programConfigurations.upload(t),this.dynamicLayoutVertexBuffer=t.createVertexBuffer(this.dynamicLayoutVertexArray,La.members,!0),this.opacityVertexBuffer=t.createVertexBuffer(this.opacityVertexArray,Na,!0),this.opacityVertexBuffer.itemSize=1},Ua.prototype.destroy=function(){this.layoutVertexBuffer&&(this.layoutVertexBuffer.destroy(),this.indexBuffer.destroy(),this.programConfigurations.destroy(),this.segments.destroy(),this.dynamicLayoutVertexBuffer.destroy(),this.opacityVertexBuffer.destroy())},pr("SymbolBuffers",Ua);var Ha=function(t,e,r){this.layoutVertexArray=new t,this.layoutAttributes=e,this.indexArray=new r,this.segments=new Mn,this.collisionVertexArray=new on};Ha.prototype.upload=function(t){this.layoutVertexBuffer=t.createVertexBuffer(this.layoutVertexArray,this.layoutAttributes),this.indexBuffer=t.createIndexBuffer(this.indexArray),this.collisionVertexBuffer=t.createVertexBuffer(this.collisionVertexArray,za.members,!0)},Ha.prototype.destroy=function(){this.layoutVertexBuffer&&(this.layoutVertexBuffer.destroy(),this.indexBuffer.destroy(),this.segments.destroy(),this.collisionVertexBuffer.destroy())},pr("CollisionBuffers",Ha);var qa=function(t){this.collisionBoxArray=t.collisionBoxArray,this.zoom=t.zoom,this.overscaling=t.overscaling,this.layers=t.layers,this.layerIds=this.layers.map(function(t){return t.id}),this.index=t.index,this.pixelRatio=t.pixelRatio,this.sourceLayerIndex=t.sourceLayerIndex;var e=this.layers[0]._unevaluatedLayout._values;this.textSizeData=Fa(this.zoom,e["text-size"]),this.iconSizeData=Fa(this.zoom,e["icon-size"]);var r=this.layers[0].layout;this.sortFeaturesByY=r.get("text-allow-overlap")||r.get("icon-allow-overlap")||r.get("text-ignore-placement")||r.get("icon-ignore-placement")};qa.prototype.createArrays=function(){this.text=new Ua(new In(Ca.members,this.layers,this.zoom,function(t){return/^text/.test(t)})),this.icon=new Ua(new In(Ca.members,this.layers,this.zoom,function(t){return/^icon/.test(t)})),this.collisionBox=new Ha(an,Oa.members,hn),this.collisionCircle=new Ha(an,Ia.members,fn),this.glyphOffsetArray=new bn,this.lineVertexArray=new wn},qa.prototype.populate=function(t,e){var r=this.layers[0],n=r.layout,i=n.get("text-font"),a=n.get("text-field"),o=n.get("icon-image"),s=("constant"!==a.value.kind||a.value.value.length>0)&&("constant"!==i.value.kind||i.value.value.length>0),l="constant"!==o.value.kind||o.value.value&&o.value.value.length>0;if(this.features=[],s||l){for(var c=e.iconDependencies,u=e.glyphDependencies,f=new Lr(this.zoom),h=0,p=t;h<p.length;h+=1){var d=p[h],g=d.feature,v=d.index,m=d.sourceLayerIndex;if(r._featureFilter(f,g)){var y=void 0;s&&(y=Da(y=r.getValueAndResolveTokens("text-field",g),r,g));var x=void 0;if(l&&(x=r.getValueAndResolveTokens("icon-image",g)),y||x){var b={text:y,icon:x,index:v,sourceLayerIndex:m,geometry:Fn(g),properties:g.properties,type:Ba[g.type]};if(void 0!==g.id&&(b.id=g.id),this.features.push(b),x&&(c[x]=!0),y)for(var _=i.evaluate(g).join(","),w=u[_]=u[_]||{},k="map"===n.get("text-rotation-alignment")&&"line"===n.get("symbol-placement"),T=xr(y),A=0;A<y.length;A++)if(w[y.charCodeAt(A)]=!0,k&&T){var M=Pa[y.charAt(A)];M&&(w[M.charCodeAt(0)]=!0)}}}}"line"===n.get("symbol-placement")&&(this.features=function(t){var e={},r={},n=[],i=0;function a(e){n.push(t[e]),i++}function o(t,e,i){var a=r[t];return delete r[t],r[e]=a,n[a].geometry[0].pop(),n[a].geometry[0]=n[a].geometry[0].concat(i[0]),a}function s(t,r,i){var a=e[r];return delete e[r],e[t]=a,n[a].geometry[0].shift(),n[a].geometry[0]=i[0].concat(n[a].geometry[0]),a}function l(t,e,r){var n=r?e[0][e[0].length-1]:e[0][0];return t+":"+n.x+":"+n.y}for(var c=0;c<t.length;c++){var u=t[c],f=u.geometry,h=u.text;if(h){var p=l(h,f),d=l(h,f,!0);if(p in r&&d in e&&r[p]!==e[d]){var g=s(p,d,f),v=o(p,d,n[g].geometry);delete e[p],delete r[d],r[l(h,n[v].geometry,!0)]=v,n[g].geometry=null}else p in r?o(p,d,f):d in e?s(p,d,f):(a(c),e[p]=i-1,r[d]=i-1)}else a(c)}return n.filter(function(t){return t.geometry})}(this.features))}},qa.prototype.isEmpty=function(){return 0===this.symbolInstances.length},qa.prototype.upload=function(t){this.text.upload(t,this.sortFeaturesByY),this.icon.upload(t,this.sortFeaturesByY),this.collisionBox.upload(t),this.collisionCircle.upload(t)},qa.prototype.destroy=function(){this.text.destroy(),this.icon.destroy(),this.collisionBox.destroy(),this.collisionCircle.destroy()},qa.prototype.addToLineVertexArray=function(t,e){var r=this.lineVertexArray.length;if(void 0!==t.segment){for(var n=t.dist(e[t.segment+1]),i=t.dist(e[t.segment]),a={},o=t.segment+1;o<e.length;o++)a[o]={x:e[o].x,y:e[o].y,tileUnitDistanceFromAnchor:n},o<e.length-1&&(n+=e[o+1].dist(e[o]));for(var s=t.segment||0;s>=0;s--)a[s]={x:e[s].x,y:e[s].y,tileUnitDistanceFromAnchor:i},s>0&&(i+=e[s-1].dist(e[s]));for(var l=0;l<e.length;l++){var c=a[l];this.lineVertexArray.emplaceBack(c.x,c.y,c.tileUnitDistanceFromAnchor)}}return{lineStartIndex:r,lineLength:this.lineVertexArray.length-r}},qa.prototype.addSymbols=function(t,e,r,n,i,a,o,s,l,c){for(var u=t.indexArray,f=t.layoutVertexArray,h=t.dynamicLayoutVertexArray,p=t.segments.prepareSegment(4*e.length,t.layoutVertexArray,t.indexArray),d=this.glyphOffsetArray.length,g=p.vertexLength,v=0,m=e;v<m.length;v+=1){var y=m[v],x=y.tl,b=y.tr,_=y.bl,w=y.br,k=y.tex,T=p.vertexLength,A=y.glyphOffset[1];ja(f,s.x,s.y,x.x,A+x.y,k.x,k.y,r),ja(f,s.x,s.y,b.x,A+b.y,k.x+k.w,k.y,r),ja(f,s.x,s.y,_.x,A+_.y,k.x,k.y+k.h,r),ja(f,s.x,s.y,w.x,A+w.y,k.x+k.w,k.y+k.h,r),Va(h,s,0),u.emplaceBack(T,T+1,T+2),u.emplaceBack(T+1,T+2,T+3),p.vertexLength+=4,p.primitiveLength+=2,this.glyphOffsetArray.emplaceBack(y.glyphOffset[0])}t.placedSymbolArray.emplaceBack(s.x,s.y,d,this.glyphOffsetArray.length-d,g,l,c,s.segment,r?r[0]:0,r?r[1]:0,n[0],n[1],o,!1),t.programConfigurations.populatePaintArrays(t.layoutVertexArray.length,a)},qa.prototype._addCollisionDebugVertex=function(t,e,r,n,i){return e.emplaceBack(0,0),t.emplaceBack(r.x,r.y,n.x,n.y,Math.round(i.x),Math.round(i.y))},qa.prototype.addCollisionDebugVertices=function(t,e,r,n,i,a,o,s){var c=i.segments.prepareSegment(4,i.layoutVertexArray,i.indexArray),u=c.vertexLength,f=i.layoutVertexArray,h=i.collisionVertexArray;if(this._addCollisionDebugVertex(f,h,a,o.anchor,new l(t,e)),this._addCollisionDebugVertex(f,h,a,o.anchor,new l(r,e)),this._addCollisionDebugVertex(f,h,a,o.anchor,new l(r,n)),this._addCollisionDebugVertex(f,h,a,o.anchor,new l(t,n)),c.vertexLength+=4,s){var p=i.indexArray;p.emplaceBack(u,u+1,u+2),p.emplaceBack(u,u+2,u+3),c.primitiveLength+=2}else{var d=i.indexArray;d.emplaceBack(u,u+1),d.emplaceBack(u+1,u+2),d.emplaceBack(u+2,u+3),d.emplaceBack(u+3,u),c.primitiveLength+=4}},qa.prototype.generateCollisionDebugBuffers=function(){for(var t=0,e=this.symbolInstances;t<e.length;t+=1){var r=e[t];r.textCollisionFeature={boxStartIndex:r.textBoxStartIndex,boxEndIndex:r.textBoxEndIndex},r.iconCollisionFeature={boxStartIndex:r.iconBoxStartIndex,boxEndIndex:r.iconBoxEndIndex};for(var n=0;n<2;n++){var i=r[0===n?"textCollisionFeature":"iconCollisionFeature"];if(i)for(var a=i.boxStartIndex;a<i.boxEndIndex;a++){var o=this.collisionBoxArray.get(a),s=o.x1,l=o.y1,c=o.x2,u=o.y2,f=o.radius>0;this.addCollisionDebugVertices(s,l,c,u,f?this.collisionCircle:this.collisionBox,o.anchorPoint,r,f)}}}},qa.prototype.deserializeCollisionBoxes=function(t,e,r,n,i){for(var a={},o=e;o<r;o++){var s=t.get(o);if(0===s.radius){a.textBox={x1:s.x1,y1:s.y1,x2:s.x2,y2:s.y2,anchorPointX:s.anchorPointX,anchorPointY:s.anchorPointY},a.textFeatureIndex=s.featureIndex;break}a.textCircles||(a.textCircles=[],a.textFeatureIndex=s.featureIndex),a.textCircles.push(s.anchorPointX,s.anchorPointY,s.radius,s.signedDistanceFromAnchor,1)}for(var l=n;l<i;l++){var c=t.get(l);if(0===c.radius){a.iconBox={x1:c.x1,y1:c.y1,x2:c.x2,y2:c.y2,anchorPointX:c.anchorPointX,anchorPointY:c.anchorPointY},a.iconFeatureIndex=c.featureIndex;break}}return a},qa.prototype.hasTextData=function(){return this.text.segments.get().length>0},qa.prototype.hasIconData=function(){return this.icon.segments.get().length>0},qa.prototype.hasCollisionBoxData=function(){return this.collisionBox.segments.get().length>0},qa.prototype.hasCollisionCircleData=function(){return this.collisionCircle.segments.get().length>0},qa.prototype.sortFeatures=function(t){var e=this;if(this.sortFeaturesByY&&this.sortedAngle!==t&&(this.sortedAngle=t,!(this.text.segments.get().length>1||this.icon.segments.get().length>1))){for(var r=[],n=0;n<this.symbolInstances.length;n++)r.push(n);var i=Math.sin(t),a=Math.cos(t);r.sort(function(t,r){var n=e.symbolInstances[t],o=e.symbolInstances[r];return(i*n.anchor.x+a*n.anchor.y|0)-(i*o.anchor.x+a*o.anchor.y|0)||o.featureIndex-n.featureIndex}),this.text.indexArray.clear(),this.icon.indexArray.clear(),this.featureSortOrder=[];for(var o=0,s=r;o<s.length;o+=1){var l=s[o],c=e.symbolInstances[l];e.featureSortOrder.push(c.featureIndex);for(var u=0,f=c.placedTextSymbolIndices;u<f.length;u+=1)for(var h=f[u],p=e.text.placedSymbolArray.get(h),d=p.vertexStartIndex+4*p.numGlyphs,g=p.vertexStartIndex;g<d;g+=4)e.text.indexArray.emplaceBack(g,g+1,g+2),e.text.indexArray.emplaceBack(g+1,g+2,g+3);var v=e.icon.placedSymbolArray.get(l);if(v.numGlyphs){var m=v.vertexStartIndex;e.icon.indexArray.emplaceBack(m,m+1,m+2),e.icon.indexArray.emplaceBack(m+1,m+2,m+3)}}this.text.indexBuffer&&this.text.indexBuffer.updateData(this.text.indexArray),this.icon.indexBuffer&&this.icon.indexBuffer.updateData(this.icon.indexArray)}},pr("SymbolBucket",qa,{omit:["layers","collisionBoxArray","features","compareText"],shallow:["symbolInstances"]}),qa.MAX_GLYPHS=65535,qa.addDynamicAttributes=Va;var Ga=new Hr({"symbol-placement":new Nr(I.layout_symbol["symbol-placement"]),"symbol-spacing":new Nr(I.layout_symbol["symbol-spacing"]),"symbol-avoid-edges":new Nr(I.layout_symbol["symbol-avoid-edges"]),"icon-allow-overlap":new Nr(I.layout_symbol["icon-allow-overlap"]),"icon-ignore-placement":new Nr(I.layout_symbol["icon-ignore-placement"]),"icon-optional":new Nr(I.layout_symbol["icon-optional"]),"icon-rotation-alignment":new Nr(I.layout_symbol["icon-rotation-alignment"]),"icon-size":new jr(I.layout_symbol["icon-size"]),"icon-text-fit":new Nr(I.layout_symbol["icon-text-fit"]),"icon-text-fit-padding":new Nr(I.layout_symbol["icon-text-fit-padding"]),"icon-image":new jr(I.layout_symbol["icon-image"]),"icon-rotate":new jr(I.layout_symbol["icon-rotate"]),"icon-padding":new Nr(I.layout_symbol["icon-padding"]),"icon-keep-upright":new Nr(I.layout_symbol["icon-keep-upright"]),"icon-offset":new jr(I.layout_symbol["icon-offset"]),"icon-anchor":new jr(I.layout_symbol["icon-anchor"]),"icon-pitch-alignment":new Nr(I.layout_symbol["icon-pitch-alignment"]),"text-pitch-alignment":new Nr(I.layout_symbol["text-pitch-alignment"]),"text-rotation-alignment":new Nr(I.layout_symbol["text-rotation-alignment"]),"text-field":new jr(I.layout_symbol["text-field"]),"text-font":new jr(I.layout_symbol["text-font"]),"text-size":new jr(I.layout_symbol["text-size"]),"text-max-width":new jr(I.layout_symbol["text-max-width"]),"text-line-height":new Nr(I.layout_symbol["text-line-height"]),"text-letter-spacing":new jr(I.layout_symbol["text-letter-spacing"]),"text-justify":new jr(I.layout_symbol["text-justify"]),"text-anchor":new jr(I.layout_symbol["text-anchor"]),"text-max-angle":new Nr(I.layout_symbol["text-max-angle"]),"text-rotate":new jr(I.layout_symbol["text-rotate"]),"text-padding":new Nr(I.layout_symbol["text-padding"]),"text-keep-upright":new Nr(I.layout_symbol["text-keep-upright"]),"text-transform":new jr(I.layout_symbol["text-transform"]),"text-offset":new jr(I.layout_symbol["text-offset"]),"text-allow-overlap":new Nr(I.layout_symbol["text-allow-overlap"]),"text-ignore-placement":new Nr(I.layout_symbol["text-ignore-placement"]),"text-optional":new Nr(I.layout_symbol["text-optional"])}),Ya={paint:new Hr({"icon-opacity":new jr(I.paint_symbol["icon-opacity"]),"icon-color":new jr(I.paint_symbol["icon-color"]),"icon-halo-color":new jr(I.paint_symbol["icon-halo-color"]),"icon-halo-width":new jr(I.paint_symbol["icon-halo-width"]),"icon-halo-blur":new jr(I.paint_symbol["icon-halo-blur"]),"icon-translate":new Nr(I.paint_symbol["icon-translate"]),"icon-translate-anchor":new Nr(I.paint_symbol["icon-translate-anchor"]),"text-opacity":new jr(I.paint_symbol["text-opacity"]),"text-color":new jr(I.paint_symbol["text-color"]),"text-halo-color":new jr(I.paint_symbol["text-halo-color"]),"text-halo-width":new jr(I.paint_symbol["text-halo-width"]),"text-halo-blur":new jr(I.paint_symbol["text-halo-blur"]),"text-translate":new Nr(I.paint_symbol["text-translate"]),"text-translate-anchor":new Nr(I.paint_symbol["text-translate-anchor"])}),layout:Ga},Wa=function(t){function e(e){t.call(this,e,Ya)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.recalculate=function(e){t.prototype.recalculate.call(this,e),"auto"===this.layout.get("icon-rotation-alignment")&&("line"===this.layout.get("symbol-placement")?this.layout._values["icon-rotation-alignment"]="map":this.layout._values["icon-rotation-alignment"]="viewport"),"auto"===this.layout.get("text-rotation-alignment")&&("line"===this.layout.get("symbol-placement")?this.layout._values["text-rotation-alignment"]="map":this.layout._values["text-rotation-alignment"]="viewport"),"auto"===this.layout.get("text-pitch-alignment")&&(this.layout._values["text-pitch-alignment"]=this.layout.get("text-rotation-alignment")),"auto"===this.layout.get("icon-pitch-alignment")&&(this.layout._values["icon-pitch-alignment"]=this.layout.get("icon-rotation-alignment"))},e.prototype.getValueAndResolveTokens=function(t,e){var r,n=this.layout.get(t).evaluate(e),i=this._unevaluatedLayout._values[t];return i.isDataDriven()||_e(i.value)?n:(r=e.properties,n.replace(/{([^{}]+)}/g,function(t,e){return e in r?String(r[e]):""}))},e.prototype.createBucket=function(t){return new qa(t)},e.prototype.queryRadius=function(){return 0},e.prototype.queryIntersectsFeature=function(){return!1},e}(qr),Xa={paint:new Hr({"background-color":new Nr(I.paint_background["background-color"]),"background-pattern":new Vr(I.paint_background["background-pattern"]),"background-opacity":new Nr(I.paint_background["background-opacity"])})},Za=function(t){function e(e){t.call(this,e,Xa)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(qr),$a={paint:new Hr({"raster-opacity":new Nr(I.paint_raster["raster-opacity"]),"raster-hue-rotate":new Nr(I.paint_raster["raster-hue-rotate"]),"raster-brightness-min":new Nr(I.paint_raster["raster-brightness-min"]),"raster-brightness-max":new Nr(I.paint_raster["raster-brightness-max"]),"raster-saturation":new Nr(I.paint_raster["raster-saturation"]),"raster-contrast":new Nr(I.paint_raster["raster-contrast"]),"raster-fade-duration":new Nr(I.paint_raster["raster-fade-duration"])})},Ja={circle:ni,heatmap:pi,hillshade:gi,fill:Ji,"fill-extrusion":aa,line:Sa,symbol:Wa,background:Za,raster:function(t){function e(e){t.call(this,e,$a)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(qr)},Ka=i(function(t,e){t.exports=function(){function t(t,e,r){r=r||{},this.w=t||64,this.h=e||64,this.autoResize=!!r.autoResize,this.shelves=[],this.freebins=[],this.stats={},this.bins={},this.maxId=0}function e(t,e,r){this.x=0,this.y=t,this.w=this.free=e,this.h=r}return t.prototype.pack=function(t,e){t=[].concat(t),e=e||{};for(var r,n,i,a,o=[],s=0;s<t.length;s++)if(r=t[s].w||t[s].width,n=t[s].h||t[s].height,i=t[s].id,r&&n){if(!(a=this.packOne(r,n,i)))continue;e.inPlace&&(t[s].x=a.x,t[s].y=a.y,t[s].id=a.id),o.push(a)}return this.shrink(),o},t.prototype.packOne=function(t,r,n){var i,a,o,s,l,c,u,f,h={freebin:-1,shelf:-1,waste:1/0},p=0;if("string"==typeof n||"number"==typeof n){if(i=this.getBin(n))return this.ref(i),i;"number"==typeof n&&(this.maxId=Math.max(n,this.maxId))}else n=++this.maxId;for(s=0;s<this.freebins.length;s++){if(r===(i=this.freebins[s]).maxh&&t===i.maxw)return this.allocFreebin(s,t,r,n);r>i.maxh||t>i.maxw||r<=i.maxh&&t<=i.maxw&&(o=i.maxw*i.maxh-t*r)<h.waste&&(h.waste=o,h.freebin=s)}for(s=0;s<this.shelves.length;s++)if(p+=(a=this.shelves[s]).h,!(t>a.free)){if(r===a.h)return this.allocShelf(s,t,r,n);r>a.h||r<a.h&&(o=(a.h-r)*t)<h.waste&&(h.freebin=-1,h.waste=o,h.shelf=s)}return-1!==h.freebin?this.allocFreebin(h.freebin,t,r,n):-1!==h.shelf?this.allocShelf(h.shelf,t,r,n):r<=this.h-p&&t<=this.w?(a=new e(p,this.w,r),this.allocShelf(this.shelves.push(a)-1,t,r,n)):this.autoResize?(l=c=this.h,((u=f=this.w)<=l||t>u)&&(f=2*Math.max(t,u)),(l<u||r>l)&&(c=2*Math.max(r,l)),this.resize(f,c),this.packOne(t,r,n)):null},t.prototype.allocFreebin=function(t,e,r,n){var i=this.freebins.splice(t,1)[0];return i.id=n,i.w=e,i.h=r,i.refcount=0,this.bins[n]=i,this.ref(i),i},t.prototype.allocShelf=function(t,e,r,n){var i=this.shelves[t].alloc(e,r,n);return this.bins[n]=i,this.ref(i),i},t.prototype.shrink=function(){if(this.shelves.length>0){for(var t=0,e=0,r=0;r<this.shelves.length;r++){var n=this.shelves[r];e+=n.h,t=Math.max(n.w-n.free,t)}this.resize(t,e)}},t.prototype.getBin=function(t){return this.bins[t]},t.prototype.ref=function(t){if(1==++t.refcount){var e=t.h;this.stats[e]=1+(0|this.stats[e])}return t.refcount},t.prototype.unref=function(t){return 0===t.refcount?0:(0==--t.refcount&&(this.stats[t.h]--,delete this.bins[t.id],this.freebins.push(t)),t.refcount)},t.prototype.clear=function(){this.shelves=[],this.freebins=[],this.stats={},this.bins={},this.maxId=0},t.prototype.resize=function(t,e){this.w=t,this.h=e;for(var r=0;r<this.shelves.length;r++)this.shelves[r].resize(t);return!0},e.prototype.alloc=function(t,e,r){if(t>this.free||e>this.h)return null;var n=this.x;return this.x+=t,this.free-=t,new function(t,e,r,n,i,a,o){this.id=t,this.x=e,this.y=r,this.w=n,this.h=i,this.maxw=a||n,this.maxh=o||i,this.refcount=0}(r,n,this.y,t,e,t,this.h)},e.prototype.resize=function(t){return this.free+=t-this.w,this.w=t,!0},t}()}),Qa=function(t,e){var r=e.pixelRatio;this.paddedRect=t,this.pixelRatio=r},to={tl:{configurable:!0},br:{configurable:!0},displaySize:{configurable:!0}};to.tl.get=function(){return[this.paddedRect.x+1,this.paddedRect.y+1]},to.br.get=function(){return[this.paddedRect.x+this.paddedRect.w-1,this.paddedRect.y+this.paddedRect.h-1]},to.displaySize.get=function(){return[(this.paddedRect.w-2)/this.pixelRatio,(this.paddedRect.h-2)/this.pixelRatio]},Object.defineProperties(Qa.prototype,to);var eo=function(t){var e=new ui({width:0,height:0}),r={},n=new Ka(0,0,{autoResize:!0});for(var i in t){var a=t[i],o=n.packOne(a.data.width+2,a.data.height+2);e.resize({width:n.w,height:n.h}),ui.copy(a.data,e,{x:0,y:0},{x:o.x+1,y:o.y+1},a.data),r[i]=new Qa(o,a)}n.shrink(),e.resize({width:n.w,height:n.h}),this.image=e,this.positions=r};pr("ImagePosition",Qa),pr("ImageAtlas",eo);var ro=function(t,e,r,n,i){var 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bo(t,e,r){t[r]=e,t[r+1]=e>>>8,t[r+2]=e>>>16,t[r+3]=e>>>24}function _o(t,e){return(t[e]|t[e+1]<<8|t[e+2]<<16)+(t[e+3]<<24)}ao.Varint=0,ao.Fixed64=1,ao.Bytes=2,ao.Fixed32=5,ao.prototype={destroy:function(){this.buf=null},readFields:function(t,e,r){for(r=r||this.length;this.pos<r;){var n=this.readVarint(),i=n>>3,a=this.pos;this.type=7&n,t(i,e,this),this.pos===a&&this.skip(n)}return e},readMessage:function(t,e){return this.readFields(t,e,this.readVarint()+this.pos)},readFixed32:function(){var t=xo(this.buf,this.pos);return this.pos+=4,t},readSFixed32:function(){var t=_o(this.buf,this.pos);return this.pos+=4,t},readFixed64:function(){var t=xo(this.buf,this.pos)+4294967296*xo(this.buf,this.pos+4);return this.pos+=8,t},readSFixed64:function(){var t=xo(this.buf,this.pos)+4294967296*_o(this.buf,this.pos+4);return this.pos+=8,t},readFloat:function(){var t=ro(this.buf,this.pos,!0,23,4);return this.pos+=4,t},readDouble:function(){var t=ro(this.buf,this.pos,!0,52,8);return this.pos+=8,t},readVarint:function(t){var e,r,n=this.buf;return e=127&(r=n[this.pos++]),r<128?e:(e|=(127&(r=n[this.pos++]))<<7,r<128?e:(e|=(127&(r=n[this.pos++]))<<14,r<128?e:(e|=(127&(r=n[this.pos++]))<<21,r<128?e:function(t,e,r){var n,i,a=r.buf;if(n=(112&(i=a[r.pos++]))>>4,i<128)return so(t,n,e);if(n|=(127&(i=a[r.pos++]))<<3,i<128)return so(t,n,e);if(n|=(127&(i=a[r.pos++]))<<10,i<128)return so(t,n,e);if(n|=(127&(i=a[r.pos++]))<<17,i<128)return so(t,n,e);if(n|=(127&(i=a[r.pos++]))<<24,i<128)return so(t,n,e);if(n|=(1&(i=a[r.pos++]))<<31,i<128)return so(t,n,e);throw new Error("Expected varint not more than 10 bytes")}(e|=(15&(r=n[this.pos]))<<28,t,this))))},readVarint64:function(){return this.readVarint(!0)},readSVarint:function(){var t=this.readVarint();return t%2==1?(t+1)/-2:t/2},readBoolean:function(){return Boolean(this.readVarint())},readString:function(){var t=this.readVarint()+this.pos,e=function(t,e,r){for(var n="",i=e;i<r;){var a,o,s,l=t[i],c=null,u=l>239?4:l>223?3:l>191?2:1;if(i+u>r)break;1===u?l<128&&(c=l):2===u?128==(192&(a=t[i+1]))&&(c=(31&l)<<6|63&a)<=127&&(c=null):3===u?(a=t[i+1],o=t[i+2],128==(192&a)&&128==(192&o)&&((c=(15&l)<<12|(63&a)<<6|63&o)<=2047||c>=55296&&c<=57343)&&(c=null)):4===u&&(a=t[i+1],o=t[i+2],s=t[i+3],128==(192&a)&&128==(192&o)&&128==(192&s)&&((c=(15&l)<<18|(63&a)<<12|(63&o)<<6|63&s)<=65535||c>=1114112)&&(c=null)),null===c?(c=65533,u=1):c>65535&&(c-=65536,n+=String.fromCharCode(c>>>10&1023|55296),c=56320|1023&c),n+=String.fromCharCode(c),i+=u}return n}(this.buf,this.pos,t);return this.pos=t,e},readBytes:function(){var t=this.readVarint()+this.pos,e=this.buf.subarray(this.pos,t);return this.pos=t,e},readPackedVarint:function(t,e){var r=oo(this);for(t=t||[];this.pos<r;)t.push(this.readVarint(e));return t},readPackedSVarint:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readSVarint());return t},readPackedBoolean:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readBoolean());return t},readPackedFloat:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readFloat());return t},readPackedDouble:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readDouble());return t},readPackedFixed32:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readFixed32());return t},readPackedSFixed32:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readSFixed32());return t},readPackedFixed64:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readFixed64());return t},readPackedSFixed64:function(t){var e=oo(this);for(t=t||[];this.pos<e;)t.push(this.readSFixed64());return t},skip:function(t){var e=7&t;if(e===ao.Varint)for(;this.buf[this.pos++]>127;);else if(e===ao.Bytes)this.pos=this.readVarint()+this.pos;else if(e===ao.Fixed32)this.pos+=4;else{if(e!==ao.Fixed64)throw new Error("Unimplemented type: "+e);this.pos+=8}},writeTag:function(t,e){this.writeVarint(t<<3|e)},realloc:function(t){for(var e=this.length||16;e<this.pos+t;)e*=2;if(e!==this.length){var r=new Uint8Array(e);r.set(this.buf),this.buf=r,this.length=e}},finish:function(){return this.length=this.pos,this.pos=0,this.buf.subarray(0,this.length)},writeFixed32:function(t){this.realloc(4),bo(this.buf,t,this.pos),this.pos+=4},writeSFixed32:function(t){this.realloc(4),bo(this.buf,t,this.pos),this.pos+=4},writeFixed64:function(t){this.realloc(8),bo(this.buf,-1&t,this.pos),bo(this.buf,Math.floor(t*(1/4294967296)),this.pos+4),this.pos+=8},writeSFixed64:function(t){this.realloc(8),bo(this.buf,-1&t,this.pos),bo(this.buf,Math.floor(t*(1/4294967296)),this.pos+4),this.pos+=8},writeVarint:function(t){(t=+t||0)>268435455||t<0?function(t,e){var r,n;if(t>=0?(r=t%4294967296|0,n=t/4294967296|0):(n=~(-t/4294967296),4294967295^(r=~(-t%4294967296))?r=r+1|0:(r=0,n=n+1|0)),t>=0x10000000000000000||t<-0x10000000000000000)throw new Error("Given varint doesn't fit into 10 bytes");e.realloc(10),function(t,e,r){r.buf[r.pos++]=127&t|128,t>>>=7,r.buf[r.pos++]=127&t|128,t>>>=7,r.buf[r.pos++]=127&t|128,t>>>=7,r.buf[r.pos++]=127&t|128,t>>>=7,r.buf[r.pos]=127&t}(r,0,e),function(t,e){var r=(7&t)<<4;e.buf[e.pos++]|=r|((t>>>=3)?128:0),t&&(e.buf[e.pos++]=127&t|((t>>>=7)?128:0),t&&(e.buf[e.pos++]=127&t|((t>>>=7)?128:0),t&&(e.buf[e.pos++]=127&t|((t>>>=7)?128:0),t&&(e.buf[e.pos++]=127&t|((t>>>=7)?128:0),t&&(e.buf[e.pos++]=127&t)))))}(n,e)}(t,this):(this.realloc(4),this.buf[this.pos++]=127&t|(t>127?128:0),t<=127||(this.buf[this.pos++]=127&(t>>>=7)|(t>127?128:0),t<=127||(this.buf[this.pos++]=127&(t>>>=7)|(t>127?128:0),t<=127||(this.buf[this.pos++]=t>>>7&127))))},writeSVarint:function(t){this.writeVarint(t<0?2*-t-1:2*t)},writeBoolean:function(t){this.writeVarint(Boolean(t))},writeString:function(t){t=String(t),this.realloc(4*t.length),this.pos++;var e=this.pos;this.pos=function(t,e,r){for(var n,i,a=0;a<e.length;a++){if((n=e.charCodeAt(a))>55295&&n<57344){if(!i){n>56319||a+1===e.length?(t[r++]=239,t[r++]=191,t[r++]=189):i=n;continue}if(n<56320){t[r++]=239,t[r++]=191,t[r++]=189,i=n;continue}n=i-55296<<10|n-56320|65536,i=null}else i&&(t[r++]=239,t[r++]=191,t[r++]=189,i=null);n<128?t[r++]=n:(n<2048?t[r++]=n>>6|192:(n<65536?t[r++]=n>>12|224:(t[r++]=n>>18|240,t[r++]=n>>12&63|128),t[r++]=n>>6&63|128),t[r++]=63&n|128)}return r}(this.buf,t,this.pos);var r=this.pos-e;r>=128&&lo(e,r,this),this.pos=e-1,this.writeVarint(r),this.pos+=r},writeFloat:function(t){this.realloc(4),no(this.buf,t,this.pos,!0,23,4),this.pos+=4},writeDouble:function(t){this.realloc(8),no(this.buf,t,this.pos,!0,52,8),this.pos+=8},writeBytes:function(t){var e=t.length;this.writeVarint(e),this.realloc(e);for(var r=0;r<e;r++)this.buf[this.pos++]=t[r]},writeRawMessage:function(t,e){this.pos++;var r=this.pos;t(e,this);var n=this.pos-r;n>=128&&lo(r,n,this),this.pos=r-1,this.writeVarint(n),this.pos+=n},writeMessage:function(t,e,r){this.writeTag(t,ao.Bytes),this.writeRawMessage(e,r)},writePackedVarint:function(t,e){this.writeMessage(t,co,e)},writePackedSVarint:function(t,e){this.writeMessage(t,uo,e)},writePackedBoolean:function(t,e){this.writeMessage(t,po,e)},writePackedFloat:function(t,e){this.writeMessage(t,fo,e)},writePackedDouble:function(t,e){this.writeMessage(t,ho,e)},writePackedFixed32:function(t,e){this.writeMessage(t,go,e)},writePackedSFixed32:function(t,e){this.writeMessage(t,vo,e)},writePackedFixed64:function(t,e){this.writeMessage(t,mo,e)},writePackedSFixed64:function(t,e){this.writeMessage(t,yo,e)},writeBytesField:function(t,e){this.writeTag(t,ao.Bytes),this.writeBytes(e)},writeFixed32Field:function(t,e){this.writeTag(t,ao.Fixed32),this.writeFixed32(e)},writeSFixed32Field:function(t,e){this.writeTag(t,ao.Fixed32),this.writeSFixed32(e)},writeFixed64Field:function(t,e){this.writeTag(t,ao.Fixed64),this.writeFixed64(e)},writeSFixed64Field:function(t,e){this.writeTag(t,ao.Fixed64),this.writeSFixed64(e)},writeVarintField:function(t,e){this.writeTag(t,ao.Varint),this.writeVarint(e)},writeSVarintField:function(t,e){this.writeTag(t,ao.Varint),this.writeSVarint(e)},writeStringField:function(t,e){this.writeTag(t,ao.Bytes),this.writeString(e)},writeFloatField:function(t,e){this.writeTag(t,ao.Fixed32),this.writeFloat(e)},writeDoubleField:function(t,e){this.writeTag(t,ao.Fixed64),this.writeDouble(e)},writeBooleanField:function(t,e){this.writeVarintField(t,Boolean(e))}};var wo=3;function ko(t,e,r){1===t&&r.readMessage(To,e)}function To(t,e,r){if(3===t){var n=r.readMessage(Ao,{}),i=n.id,a=n.bitmap,o=n.width,s=n.height,l=n.left,c=n.top,u=n.advance;e.push({id:i,bitmap:new ci({width:o+2*wo,height:s+2*wo},a),metrics:{width:o,height:s,left:l,top:c,advance:u}})}}function Ao(t,e,r){1===t?e.id=r.readVarint():2===t?e.bitmap=r.readBytes():3===t?e.width=r.readVarint():4===t?e.height=r.readVarint():5===t?e.left=r.readSVarint():6===t?e.top=r.readSVarint():7===t&&(e.advance=r.readVarint())}var Mo=wo,So=function(t,e,r){this.target=t,this.parent=e,this.mapId=r,this.callbacks={},this.callbackID=0,g(["receive"],this),this.target.addEventListener("message",this.receive,!1)};So.prototype.send=function(t,e,r,n){var i=r?this.mapId+":"+this.callbackID++:null;r&&(this.callbacks[i]=r);var a=[];this.target.postMessage({targetMapId:n,sourceMapId:this.mapId,type:t,id:String(i),data:gr(e,a)},a)},So.prototype.receive=function(t){var e,r=this,n=t.data,i=n.id;if(!n.targetMapId||this.mapId===n.targetMapId){var a=function(t,e){var n=[];r.target.postMessage({sourceMapId:r.mapId,type:"<response>",id:String(i),error:t?gr(t):null,data:gr(e,n)},n)};if("<response>"===n.type)e=this.callbacks[n.id],delete this.callbacks[n.id],e&&n.error?e(vr(n.error)):e&&e(null,vr(n.data));else if(void 0!==n.id&&this.parent[n.type])this.parent[n.type](n.sourceMapId,vr(n.data),a);else if(void 0!==n.id&&this.parent.getWorkerSource){var o=n.type.split(".");this.parent.getWorkerSource(n.sourceMapId,o[0],o[1])[o[2]](vr(n.data),a)}else this.parent[n.type](vr(n.data))}},So.prototype.remove=function(){this.target.removeEventListener("message",this.receive,!1)};var Eo=n(i(function(t,e){!function(t){function e(t,e,n){var i=r(256*t,256*(e=Math.pow(2,n)-e-1),n),a=r(256*(t+1),256*(e+1),n);return i[0]+","+i[1]+","+a[0]+","+a[1]}function r(t,e,r){var n=2*Math.PI*6378137/256/Math.pow(2,r);return[t*n-2*Math.PI*6378137/2,e*n-2*Math.PI*6378137/2]}t.getURL=function(t,r,n,i,a,o){return o=o||{},t+"?"+["bbox="+e(n,i,a),"format="+(o.format||"image/png"),"service="+(o.service||"WMS"),"version="+(o.version||"1.1.1"),"request="+(o.request||"GetMap"),"srs="+(o.srs||"EPSG:3857"),"width="+(o.width||256),"height="+(o.height||256),"layers="+r].join("&")},t.getTileBBox=e,t.getMercCoords=r,Object.defineProperty(t,"__esModule",{value:!0})}(e)})),Co=function(t,e,r){this.z=t,this.x=e,this.y=r,this.key=Oo(0,t,e,r)};Co.prototype.equals=function(t){return this.z===t.z&&this.x===t.x&&this.y===t.y},Co.prototype.url=function(t,e){var r=Eo.getTileBBox(this.x,this.y,this.z),n=function(t,e,r){for(var n,i="",a=t;a>0;a--)i+=(e&(n=1<<a-1)?1:0)+(r&n?2:0);return i}(this.z,this.x,this.y);return t[(this.x+this.y)%t.length].replace("{prefix}",(this.x%16).toString(16)+(this.y%16).toString(16)).replace("{z}",String(this.z)).replace("{x}",String(this.x)).replace("{y}",String("tms"===e?Math.pow(2,this.z)-this.y-1:this.y)).replace("{quadkey}",n).replace("{bbox-epsg-3857}",r)};var Lo=function(t,e){this.wrap=t,this.canonical=e,this.key=Oo(t,e.z,e.x,e.y)},zo=function(t,e,r,n,i){this.overscaledZ=t,this.wrap=e,this.canonical=new Co(r,+n,+i),this.key=Oo(e,t,n,i)};function Oo(t,e,r,n){(t*=2)<0&&(t=-1*t-1);var i=1<<e;return 32*(i*i*t+i*n+r)+e}zo.prototype.equals=function(t){return this.overscaledZ===t.overscaledZ&&this.wrap===t.wrap&&this.canonical.equals(t.canonical)},zo.prototype.scaledTo=function(t){var e=this.canonical.z-t;return t>this.canonical.z?new zo(t,this.wrap,this.canonical.z,this.canonical.x,this.canonical.y):new zo(t,this.wrap,t,this.canonical.x>>e,this.canonical.y>>e)},zo.prototype.isChildOf=function(t){var e=this.canonical.z-t.canonical.z;return 0===t.overscaledZ||t.overscaledZ<this.overscaledZ&&t.canonical.x===this.canonical.x>>e&&t.canonical.y===this.canonical.y>>e},zo.prototype.children=function(t){if(this.overscaledZ>=t)return[new zo(this.overscaledZ+1,this.wrap,this.canonical.z,this.canonical.x,this.canonical.y)];var e=this.canonical.z+1,r=2*this.canonical.x,n=2*this.canonical.y;return[new zo(e,this.wrap,e,r,n),new zo(e,this.wrap,e,r+1,n),new zo(e,this.wrap,e,r,n+1),new zo(e,this.wrap,e,r+1,n+1)]},zo.prototype.isLessThan=function(t){return this.wrap<t.wrap||!(this.wrap>t.wrap)&&(this.overscaledZ<t.overscaledZ||!(this.overscaledZ>t.overscaledZ)&&(this.canonical.x<t.canonical.x||!(this.canonical.x>t.canonical.x)&&this.canonical.y<t.canonical.y))},zo.prototype.wrapped=function(){return new zo(this.overscaledZ,0,this.canonical.z,this.canonical.x,this.canonical.y)},zo.prototype.unwrapTo=function(t){return new zo(this.overscaledZ,t,this.canonical.z,this.canonical.x,this.canonical.y)},zo.prototype.overscaleFactor=function(){return Math.pow(2,this.overscaledZ-this.canonical.z)},zo.prototype.toUnwrapped=function(){return new Lo(this.wrap,this.canonical)},zo.prototype.toString=function(){return this.overscaledZ+"/"+this.canonical.x+"/"+this.canonical.y},zo.prototype.toCoordinate=function(){return new s(this.canonical.x+Math.pow(2,this.wrap),this.canonical.y,this.canonical.z)},pr("CanonicalTileID",Co),pr("OverscaledTileID",zo,{omit:["posMatrix"]});var Io=function(t,e,r){if(t<=0)throw new RangeError("Level must have positive dimension");this.dim=t,this.border=e,this.stride=this.dim+2*this.border,this.data=r||new Int32Array((this.dim+2*this.border)*(this.dim+2*this.border))};Io.prototype.set=function(t,e,r){this.data[this._idx(t,e)]=r+65536},Io.prototype.get=function(t,e){return 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p=t[h],d=t[h+1],g=t[h+2],v=t[h+3],m=t[h+4],y=0===i?p:d,x=0===i?v:m,b=!1;o&&(s=Math.sqrt(Math.pow(p-v,2)+Math.pow(d-m,2))),y<r?x>=r&&(l=u(c,p,d,v,m,r),o&&(c.start=f+s*l)):y>n?x<=n&&(l=u(c,p,d,v,m,n),o&&(c.start=f+s*l)):Lt(c,p,d,g),x<r&&y>=r&&(l=u(c,p,d,v,m,r),b=!0),x>n&&y<=n&&(l=u(c,p,d,v,m,n),b=!0),!a&&b&&(o&&(c.end=f+s*l),e.push(c),c=Et(t)),o&&(f+=s)}var _=t.length-3;p=t[_],d=t[_+1],g=t[_+2],(y=0===i?p:d)>=r&&y<=n&&Lt(c,p,d,g),_=c.length-3,a&&_>=3&&(c[_]!==c[0]||c[_+1]!==c[1])&&Lt(c,c[0],c[1],c[2]),c.length&&e.push(c)}function Et(t){var e=[];return e.size=t.size,e.start=t.start,e.end=t.end,e}function Ct(t,e,r,n,i,a){for(var o=0;o<t.length;o++)St(t[o],e,r,n,i,a,!1)}function Lt(t,e,r,n){t.push(e),t.push(r),t.push(n)}function zt(t,e,r,n,i,a){var o=(a-e)/(n-e);return t.push(a),t.push(r+(i-r)*o),t.push(1),o}function Ot(t,e,r,n,i,a){var o=(a-r)/(i-r);return t.push(e+(n-e)*o),t.push(a),t.push(1),o}function It(t,e){for(var r=[],n=0;n<t.length;n++){var i,a=t[n],o=a.type;if("Point"===o||"MultiPoint"===o||"LineString"===o)i=Dt(a.geometry,e);else if("MultiLineString"===o||"Polygon"===o){i=[];for(var s=0;s<a.geometry.length;s++)i.push(Dt(a.geometry[s],e))}else if("MultiPolygon"===o)for(i=[],s=0;s<a.geometry.length;s++){for(var l=[],c=0;c<a.geometry[s].length;c++)l.push(Dt(a.geometry[s][c],e));i.push(l)}r.push(mt(a.id,o,i,a.tags))}return r}function Dt(t,e){var r=[];r.size=t.size,void 0!==t.start&&(r.start=t.start,r.end=t.end);for(var n=0;n<t.length;n+=3)r.push(t[n]+e,t[n+1],t[n+2]);return r}function Pt(t,e){if(t.transformed)return t;var r,n,i,a=1<<t.z,o=t.x,s=t.y;for(r=0;r<t.features.length;r++){var l=t.features[r],c=l.geometry,u=l.type;if(l.geometry=[],1===u)for(n=0;n<c.length;n+=2)l.geometry.push(Rt(c[n],c[n+1],e,a,o,s));else for(n=0;n<c.length;n++){var f=[];for(i=0;i<c[n].length;i+=2)f.push(Rt(c[n][i],c[n][i+1],e,a,o,s));l.geometry.push(f)}}return t.transformed=!0,t}function Rt(t,e,r,n,i,a){return[Math.round(r*(t*n-i)),Math.round(r*(e*n-a))]}function Ft(t,e,r,n,i){for(var a=e===i.maxZoom?0:i.tolerance/((1<<e)*i.extent),o={features:[],numPoints:0,numSimplified:0,numFeatures:0,source:null,x:r,y:n,z:e,transformed:!1,minX:2,minY:1,maxX:-1,maxY:0},s=0;s<t.length;s++){o.numFeatures++,Bt(o,t[s],a,i);var l=t[s].minX,c=t[s].minY,u=t[s].maxX,f=t[s].maxY;l<o.minX&&(o.minX=l),c<o.minY&&(o.minY=c),u>o.maxX&&(o.maxX=u),f>o.maxY&&(o.maxY=f)}return o}function Bt(t,e,r,n){var i=e.geometry,a=e.type,o=[];if("Point"===a||"MultiPoint"===a)for(var s=0;s<i.length;s+=3)o.push(i[s]),o.push(i[s+1]),t.numPoints++,t.numSimplified++;else if("LineString"===a)Nt(o,i,t,r,!1,!1);else if("MultiLineString"===a||"Polygon"===a)for(s=0;s<i.length;s++)Nt(o,i[s],t,r,"Polygon"===a,0===s);else if("MultiPolygon"===a)for(var l=0;l<i.length;l++){var c=i[l];for(s=0;s<c.length;s++)Nt(o,c[s],t,r,!0,0===s)}if(o.length){var u=e.tags||null;if("LineString"===a&&n.lineMetrics){for(var f in u={},e.tags)u[f]=e.tags[f];u.mapbox_clip_start=i.start/i.size,u.mapbox_clip_end=i.end/i.size}var h={geometry:o,type:"Polygon"===a||"MultiPolygon"===a?3:"LineString"===a||"MultiLineString"===a?2:1,tags:u};null!==e.id&&(h.id=e.id),t.features.push(h)}}function Nt(t,e,r,n,i,a){var o=n*n;if(n>0&&e.size<(i?o:n))r.numPoints+=e.length/3;else{for(var s=[],l=0;l<e.length;l+=3)(0===n||e[l+2]>o)&&(r.numSimplified++,s.push(e[l]),s.push(e[l+1])),r.numPoints++;i&&function(t,e){for(var r=0,n=0,i=t.length,a=i-2;n<i;a=n,n+=2)r+=(t[n]-t[a])*(t[n+1]+t[a+1]);if(r>0===e)for(n=0,i=t.length;n<i/2;n+=2){var o=t[n],s=t[n+1];t[n]=t[i-2-n],t[n+1]=t[i-1-n],t[i-2-n]=o,t[i-1-n]=s}}(s,a),t.push(s)}}function jt(t,e){var r=(e=this.options=function(t,e){for(var r in e)t[r]=e[r];return t}(Object.create(this.options),e)).debug;if(r&&console.time("preprocess data"),e.maxZoom<0||e.maxZoom>24)throw new Error("maxZoom should be in the 0-24 range");var n=function(t,e){var r=[];if("FeatureCollection"===t.type)for(var n=0;n<t.features.length;n++)xt(r,t.features[n],e);else"Feature"===t.type?xt(r,t,e):xt(r,{geometry:t},e);return r}(t,e);this.tiles={},this.tileCoords=[],r&&(console.timeEnd("preprocess data"),console.log("index: maxZoom: %d, maxPoints: %d",e.indexMaxZoom,e.indexMaxPoints),console.time("generate tiles"),this.stats={},this.total=0),(n=function(t,e){var r=e.buffer/e.extent,n=t,i=At(t,1,-1-r,r,0,-1,2,e),a=At(t,1,1-r,2+r,0,-1,2,e);return(i||a)&&(n=At(t,1,-r,1+r,0,-1,2,e)||[],i&&(n=It(i,1).concat(n)),a&&(n=n.concat(It(a,-1)))),n}(n,e)).length&&this.splitTile(n,0,0,0),r&&(n.length&&console.log("features: %d, points: %d",this.tiles[0].numFeatures,this.tiles[0].numPoints),console.timeEnd("generate tiles"),console.log("tiles generated:",this.total,JSON.stringify(this.stats)))}function Vt(t,e,r){return 32*((1<<t)*r+e)+t}function Ut(t,e){var r=t.tileID.canonical;if(!this._geoJSONIndex)return e(null,null);var n=this._geoJSONIndex.getTile(r.z,r.x,r.y);if(!n)return e(null,null);var i=new R(n.features),a=V(i);0===a.byteOffset&&a.byteLength===a.buffer.byteLength||(a=new Uint8Array(a)),e(null,{vectorTile:i,rawData:a.buffer})}ot.prototype={options:{minZoom:0,maxZoom:16,radius:40,extent:512,nodeSize:64,log:!1,reduce:null,initial:function(){return{}},map:function(t){return t}},load:function(t){var e=this.options.log;e&&console.time("total time");var r="prepare "+t.length+" points";e&&console.time(r),this.points=t;var n=t.map(lt);e&&console.timeEnd(r);for(var i=this.options.maxZoom;i>=this.options.minZoom;i--){var a=+Date.now();this.trees[i+1]=rt(n,dt,gt,this.options.nodeSize,Float32Array),n=this._cluster(n,i),e&&console.log("z%d: %d clusters in %dms",i,n.length,+Date.now()-a)}return this.trees[this.options.minZoom]=rt(n,dt,gt,this.options.nodeSize,Float32Array),e&&console.timeEnd("total time"),this},getClusters:function(t,e){for(var r=this.trees[this._limitZoom(e)],n=r.range(ft(t[0]),ht(t[3]),ft(t[2]),ht(t[1])),i=[],a=0;a<n.length;a++){var o=r.points[n[a]];i.push(o.numPoints?ct(o):this.points[o.id])}return i},getChildren:function(t,e){for(var r=this.trees[e+1].points[t],n=this.options.radius/(this.options.extent*Math.pow(2,e)),i=this.trees[e+1].within(r.x,r.y,n),a=[],o=0;o<i.length;o++){var s=this.trees[e+1].points[i[o]];s.parentId===t&&a.push(s.numPoints?ct(s):this.points[s.id])}return a},getLeaves:function(t,e,r,n){r=r||10,n=n||0;var i=[];return this._appendLeaves(i,t,e,r,n,0),i},getTile:function(t,e,r){var n=this.trees[this._limitZoom(t)],i=Math.pow(2,t),a=this.options.extent,o=this.options.radius/a,s=(r-o)/i,l=(r+1+o)/i,c={features:[]};return this._addTileFeatures(n.range((e-o)/i,s,(e+1+o)/i,l),n.points,e,r,i,c),0===e&&this._addTileFeatures(n.range(1-o/i,s,1,l),n.points,i,r,i,c),e===i-1&&this._addTileFeatures(n.range(0,s,o/i,l),n.points,-1,r,i,c),c.features.length?c:null},getClusterExpansionZoom:function(t,e){for(;e<this.options.maxZoom;){var r=this.getChildren(t,e);if(e++,1!==r.length)break;t=r[0].properties.cluster_id}return e},_appendLeaves:function(t,e,r,n,i,a){for(var o=this.getChildren(e,r),s=0;s<o.length;s++){var l=o[s].properties;if(l.cluster?a+l.point_count<=i?a+=l.point_count:a=this._appendLeaves(t,l.cluster_id,r+1,n,i,a):a<i?a++:t.push(o[s]),t.length===n)break}return a},_addTileFeatures:function(t,e,r,n,i,a){for(var o=0;o<t.length;o++){var s=e[t[o]];a.features.push({type:1,geometry:[[Math.round(this.options.extent*(s.x*i-r)),Math.round(this.options.extent*(s.y*i-n))]],tags:s.numPoints?ut(s):this.points[s.id].properties})}},_limitZoom:function(t){return Math.max(this.options.minZoom,Math.min(t,this.options.maxZoom+1))},_cluster:function(t,e){for(var r=[],n=this.options.radius/(this.options.extent*Math.pow(2,e)),i=0;i<t.length;i++){var a=t[i];if(!(a.zoom<=e)){a.zoom=e;var o=this.trees[e+1],s=o.within(a.x,a.y,n),l=a.numPoints||1,c=a.x*l,u=a.y*l,f=null;this.options.reduce&&(f=this.options.initial(),this._accumulate(f,a));for(var h=0;h<s.length;h++){var p=o.points[s[h]];if(e<p.zoom){var d=p.numPoints||1;p.zoom=e,c+=p.x*d,u+=p.y*d,l+=d,p.parentId=i,this.options.reduce&&this._accumulate(f,p)}}1===l?r.push(a):(a.parentId=i,r.push(st(c/l,u/l,l,i,f)))}}return r},_accumulate:function(t,e){var r=e.numPoints?e.properties:this.options.map(this.points[e.id].properties);this.options.reduce(t,r)}},jt.prototype.options={maxZoom:14,indexMaxZoom:5,indexMaxPoints:1e5,tolerance:3,extent:4096,buffer:64,lineMetrics:!1,debug:0},jt.prototype.splitTile=function(t,e,r,n,i,a,o){for(var s=[t,e,r,n],l=this.options,c=l.debug;s.length;){n=s.pop(),r=s.pop(),e=s.pop(),t=s.pop();var u=1<<e,f=Vt(e,r,n),h=this.tiles[f];if(!h&&(c>1&&console.time("creation"),h=this.tiles[f]=Ft(t,e,r,n,l),this.tileCoords.push({z:e,x:r,y:n}),c)){c>1&&(console.log("tile z%d-%d-%d (features: %d, points: %d, simplified: %d)",e,r,n,h.numFeatures,h.numPoints,h.numSimplified),console.timeEnd("creation"));var p="z"+e;this.stats[p]=(this.stats[p]||0)+1,this.total++}if(h.source=t,i){if(e===l.maxZoom||e===i)continue;var d=1<<i-e;if(r!==Math.floor(a/d)||n!==Math.floor(o/d))continue}else if(e===l.indexMaxZoom||h.numPoints<=l.indexMaxPoints)continue;if(h.source=null,0!==t.length){c>1&&console.time("clipping");var g,v,m,y,x,b,_=.5*l.buffer/l.extent,w=.5-_,k=.5+_,T=1+_;g=v=m=y=null,x=At(t,u,r-_,r+k,0,h.minX,h.maxX,l),b=At(t,u,r+w,r+T,0,h.minX,h.maxX,l),t=null,x&&(g=At(x,u,n-_,n+k,1,h.minY,h.maxY,l),v=At(x,u,n+w,n+T,1,h.minY,h.maxY,l),x=null),b&&(m=At(b,u,n-_,n+k,1,h.minY,h.maxY,l),y=At(b,u,n+w,n+T,1,h.minY,h.maxY,l),b=null),c>1&&console.timeEnd("clipping"),s.push(g||[],e+1,2*r,2*n),s.push(v||[],e+1,2*r,2*n+1),s.push(m||[],e+1,2*r+1,2*n),s.push(y||[],e+1,2*r+1,2*n+1)}}},jt.prototype.getTile=function(t,e,r){var n=this.options,i=n.extent,a=n.debug;if(t<0||t>24)return null;var o=1<<t,s=Vt(t,e=(e%o+o)%o,r);if(this.tiles[s])return Pt(this.tiles[s],i);a>1&&console.log("drilling down to z%d-%d-%d",t,e,r);for(var l,c=t,u=e,f=r;!l&&c>0;)c--,u=Math.floor(u/2),f=Math.floor(f/2),l=this.tiles[Vt(c,u,f)];return l&&l.source?(a>1&&console.log("found parent tile z%d-%d-%d",c,u,f),a>1&&console.time("drilling down"),this.splitTile(l.source,c,u,f,t,e,r),a>1&&console.timeEnd("drilling down"),this.tiles[s]?Pt(this.tiles[s],i):null):null};var Ht=function(e){function r(t,r,n){e.call(this,t,r,Ut),n&&(this.loadGeoJSON=n)}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.loadData=function(t,e){this._pendingCallback&&this._pendingCallback(null,{abandoned:!0}),this._pendingCallback=e,this._pendingLoadDataParams=t,this._state&&"Idle"!==this._state?this._state="NeedsLoadData":(this._state="Coalescing",this._loadData())},r.prototype._loadData=function(){var t=this;if(this._pendingCallback&&this._pendingLoadDataParams){var e=this._pendingCallback,r=this._pendingLoadDataParams;delete this._pendingCallback,delete this._pendingLoadDataParams,this.loadGeoJSON(r,function(n,i){if(n||!i)return e(n);if("object"!=typeof i)return e(new Error("Input data is not a valid GeoJSON object."));!function t(e,r){switch(e&&e.type||null){case"FeatureCollection":return e.features=e.features.map(z(t,r)),e;case"Feature":return e.geometry=t(e.geometry,r),e;case"Polygon":case"MultiPolygon":return function(t,e){return"Polygon"===t.type?t.coordinates=O(t.coordinates,e):"MultiPolygon"===t.type&&(t.coordinates=t.coordinates.map(z(O,e))),t}(e,r);default:return e}}(i,!0);try{t._geoJSONIndex=r.cluster?function(t){return new ot(t)}(r.superclusterOptions).load(i.features):new jt(i,r.geojsonVtOptions)}catch(n){return e(n)}t.loaded={};var a={};if(r.request&&r.request.collectResourceTiming){var o=w(r.request.url);o&&(a.resourceTiming={},a.resourceTiming[r.source]=JSON.parse(JSON.stringify(o)))}e(null,a)})}},r.prototype.coalesce=function(){"Coalescing"===this._state?this._state="Idle":"NeedsLoadData"===this._state&&(this._state="Coalescing",this._loadData())},r.prototype.reloadTile=function(t,r){var n=this.loaded,i=t.uid;return n&&n[i]?e.prototype.reloadTile.call(this,t,r):this.loadTile(t,r)},r.prototype.loadGeoJSON=function(e,r){if(e.request)t.getJSON(e.request,r);else{if("string"!=typeof e.data)return r(new Error("Input data is not a valid GeoJSON object."));try{return r(null,JSON.parse(e.data))}catch(t){return r(new Error("Input data is not a valid GeoJSON object."))}}},r.prototype.removeSource=function(t,e){this._pendingCallback&&this._pendingCallback(null,{abandoned:!0}),e()},r}(T),qt=function(e){var r=this;this.self=e,this.actor=new 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S=t.default.HTMLImageElement,E=t.default.HTMLCanvasElement,C=t.default.HTMLVideoElement,L=t.default.ImageData,z=function(t,e,r,n){this.context=t,this.format=r,this.texture=t.gl.createTexture(),this.update(e,n)};z.prototype.update=function(t,e){var r=t.width,n=t.height,i=!this.size||this.size[0]!==r||this.size[1]!==n,a=this.context,o=a.gl;this.useMipmap=Boolean(e&&e.useMipmap),o.bindTexture(o.TEXTURE_2D,this.texture),i?(this.size=[r,n],a.pixelStoreUnpack.set(1),this.format!==o.RGBA||e&&!1===e.premultiply||a.pixelStoreUnpackPremultiplyAlpha.set(!0),t instanceof S||t instanceof E||t instanceof C||t instanceof L?o.texImage2D(o.TEXTURE_2D,0,this.format,this.format,o.UNSIGNED_BYTE,t):o.texImage2D(o.TEXTURE_2D,0,this.format,r,n,0,this.format,o.UNSIGNED_BYTE,t.data)):t instanceof S||t instanceof E||t instanceof C||t instanceof 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i=e.data[4*n+3]/255;this.gridOuter[n]=1===i?0:0===i?D:Math.pow(Math.max(0,.5-i),2),this.gridInner[n]=1===i?D:0===i?0:Math.pow(Math.max(0,i-.5),2)}for(R(this.gridOuter,this.size,this.size,this.f,this.d,this.v,this.z),R(this.gridInner,this.size,this.size,this.f,this.d,this.v,this.z),n=0;n<this.size*this.size;n++){var a=this.gridOuter[n]-this.gridInner[n];r[n]=Math.max(0,Math.min(255,Math.round(255-255*(a/this.radius+this.cutoff))))}return r};var B=function(t,e){this.requestTransform=t,this.localIdeographFontFamily=e,this.entries={}};B.prototype.setURL=function(t){this.url=t},B.prototype.getGlyphs=function(e,r){var n=this,i=[];for(var a in e)for(var o=0,s=e[a];o<s.length;o+=1){var l=s[o];i.push({stack:a,id:l})}t.asyncAll(i,function(t,e){var r=t.stack,i=t.id,a=n.entries[r];a||(a=n.entries[r]={glyphs:{},requests:{}});var o=a.glyphs[i];if(void 0===o)if(o=n._tinySDF(a,r,i))e(null,{stack:r,id:i,glyph:o});else{var s=Math.floor(i/256);if(256*s>65535)e(new Error("glyphs > 65535 not 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t.AlphaImage({width:30,height:30},a.draw(String.fromCharCode(n))),metrics:{width:24,height:24,left:0,top:-8,advance:24}}}},B.loadGlyphRange=function(e,r,n,i,a){var o=256*r,s=o+255,l=i(function(t,e){if(!x(t))return t;var r=A(t);return r.path="/fonts/v1"+r.path,y(r,e)}(n).replace("{fontstack}",e).replace("{range}",o+"-"+s),t.ResourceType.Glyphs);t.getArrayBuffer(l,function(e,r){if(e)a(e);else if(r){for(var n={},i=0,o=t.default$3(r.data);i<o.length;i+=1){var s=o[i];n[s.id]=s}a(null,n)}})},B.TinySDF=I;var N=function(){this.specification=t.default$5.light.position};N.prototype.possiblyEvaluate=function(e,r){return t.sphericalToCartesian(e.expression.evaluate(r))},N.prototype.interpolate=function(e,r,n){return{x:t.number(e.x,r.x,n),y:t.number(e.y,r.y,n),z:t.number(e.z,r.z,n)}};var j=new t.Properties({anchor:new t.DataConstantProperty(t.default$5.light.anchor),position:new N,color:new t.DataConstantProperty(t.default$5.light.color),intensity:new t.DataConstantProperty(t.default$5.light.intensity)}),V=function(e){function r(r){e.call(this),this._transitionable=new t.Transitionable(j),this.setLight(r),this._transitioning=this._transitionable.untransitioned()}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.getLight=function(){return this._transitionable.serialize()},r.prototype.setLight=function(e){if(!this._validate(t.validateLight,e))for(var r in e){var n=e[r];t.endsWith(r,"-transition")?this._transitionable.setTransition(r.slice(0,-"-transition".length),n):this._transitionable.setValue(r,n)}},r.prototype.updateTransitions=function(t){this._transitioning=this._transitionable.transitioned(t,this._transitioning)},r.prototype.hasTransition=function(){return this._transitioning.hasTransition()},r.prototype.recalculate=function(t){this.properties=this._transitioning.possiblyEvaluate(t)},r.prototype._validate=function(e,r){return t.emitValidationErrors(this,e.call(t.validateStyle,t.extend({value:r,style:{glyphs:!0,sprite:!0},styleSpec:t.default$5})))},r}(t.Evented),U=function(t,e){this.width=t,this.height=e,this.nextRow=0,this.bytes=4,this.data=new Uint8Array(this.width*this.height*this.bytes),this.positions={}};U.prototype.getDash=function(t,e){var r=t.join(",")+String(e);return this.positions[r]||(this.positions[r]=this.addDash(t,e)),this.positions[r]},U.prototype.addDash=function(e,r){var n=r?7:0,i=2*n+1;if(this.nextRow+i>this.height)return t.warnOnce("LineAtlas out of space"),null;for(var a=0,o=0;o<e.length;o++)a+=e[o];for(var s=this.width/a,l=s/2,c=e.length%2==1,u=-n;u<=n;u++)for(var f=this.nextRow+n+u,h=this.width*f,p=c?-e[e.length-1]:0,d=e[0],g=1,v=0;v<this.width;v++){for(;d<v/s;)p=d,d+=e[g],c&&g===e.length-1&&(d+=e[0]),g++;var m=Math.abs(v-p*s),y=Math.abs(v-d*s),x=Math.min(m,y),b=g%2==1,_=void 0;if(r){var w=n?u/n*(l+1):0;if(b){var k=l-Math.abs(w);_=Math.sqrt(x*x+k*k)}else _=l-Math.sqrt(x*x+w*w)}else _=(b?1:-1)*x;this.data[3+4*(h+v)]=Math.max(0,Math.min(255,_+128))}var T={y:(this.nextRow+n+.5)/this.height,height:2*n/this.height,width:a};return this.nextRow+=i,this.dirty=!0,T},U.prototype.bind=function(t){var e=t.gl;this.texture?(e.bindTexture(e.TEXTURE_2D,this.texture),this.dirty&&(this.dirty=!1,e.texSubImage2D(e.TEXTURE_2D,0,0,0,this.width,this.height,e.RGBA,e.UNSIGNED_BYTE,this.data))):(this.texture=e.createTexture(),e.bindTexture(e.TEXTURE_2D,this.texture),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_S,e.REPEAT),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_T,e.REPEAT),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.LINEAR),e.texImage2D(e.TEXTURE_2D,0,e.RGBA,this.width,this.height,0,e.RGBA,e.UNSIGNED_BYTE,this.data))};var H=function e(r,n){this.workerPool=r,this.actors=[],this.currentActor=0,this.id=t.uniqueId();for(var i=this.workerPool.acquire(this.id),a=0;a<i.length;a++){var o=i[a],s=new e.Actor(o,n,this.id);s.name="Worker "+a,this.actors.push(s)}};function q(e,r,n){var i=function(e,r){if(e)return n(e);if(r){var i=t.pick(r,["tiles","minzoom","maxzoom","attribution","mapbox_logo","bounds"]);r.vector_layers&&(i.vectorLayers=r.vector_layers,i.vectorLayerIds=i.vectorLayers.map(function(t){return t.id})),n(null,i)}};e.url?t.getJSON(r(b(e.url),t.ResourceType.Source),i):a.frame(function(){return i(null,e)})}H.prototype.broadcast=function(e,r,n){n=n||function(){},t.asyncAll(this.actors,function(t,n){t.send(e,r,n)},n)},H.prototype.send=function(t,e,r,n){return("number"!=typeof n||isNaN(n))&&(n=this.currentActor=(this.currentActor+1)%this.actors.length),this.actors[n].send(t,e,r),n},H.prototype.remove=function(){this.actors.forEach(function(t){t.remove()}),this.actors=[],this.workerPool.release(this.id)},H.Actor=t.default$7;var G=function(t,e){if(isNaN(t)||isNaN(e))throw new Error("Invalid LngLat object: ("+t+", "+e+")");if(this.lng=+t,this.lat=+e,this.lat>90||this.lat<-90)throw new Error("Invalid LngLat latitude value: must be between -90 and 90")};G.prototype.wrap=function(){return new G(t.wrap(this.lng,-180,180),this.lat)},G.prototype.toArray=function(){return[this.lng,this.lat]},G.prototype.toString=function(){return"LngLat("+this.lng+", "+this.lat+")"},G.prototype.toBounds=function(t){var e=360*t/40075017,r=e/Math.cos(Math.PI/180*this.lat);return new Y(new G(this.lng-r,this.lat-e),new G(this.lng+r,this.lat+e))},G.convert=function(t){if(t instanceof G)return t;if(Array.isArray(t)&&(2===t.length||3===t.length))return new G(Number(t[0]),Number(t[1]));if(!Array.isArray(t)&&"object"==typeof t&&null!==t)return new G(Number(t.lng),Number(t.lat));throw new Error("`LngLatLike` argument must be specified as a LngLat instance, an object {lng: <lng>, lat: <lat>}, or an array of [<lng>, <lat>]")};var Y=function(t,e){t&&(e?this.setSouthWest(t).setNorthEast(e):4===t.length?this.setSouthWest([t[0],t[1]]).setNorthEast([t[2],t[3]]):this.setSouthWest(t[0]).setNorthEast(t[1]))};Y.prototype.setNorthEast=function(t){return this._ne=t instanceof G?new G(t.lng,t.lat):G.convert(t),this},Y.prototype.setSouthWest=function(t){return this._sw=t instanceof G?new G(t.lng,t.lat):G.convert(t),this},Y.prototype.extend=function(t){var e,r,n=this._sw,i=this._ne;if(t instanceof G)e=t,r=t;else{if(!(t instanceof Y))return Array.isArray(t)?t.every(Array.isArray)?this.extend(Y.convert(t)):this.extend(G.convert(t)):this;if(e=t._sw,r=t._ne,!e||!r)return this}return n||i?(n.lng=Math.min(e.lng,n.lng),n.lat=Math.min(e.lat,n.lat),i.lng=Math.max(r.lng,i.lng),i.lat=Math.max(r.lat,i.lat)):(this._sw=new G(e.lng,e.lat),this._ne=new G(r.lng,r.lat)),this},Y.prototype.getCenter=function(){return new G((this._sw.lng+this._ne.lng)/2,(this._sw.lat+this._ne.lat)/2)},Y.prototype.getSouthWest=function(){return this._sw},Y.prototype.getNorthEast=function(){return this._ne},Y.prototype.getNorthWest=function(){return new G(this.getWest(),this.getNorth())},Y.prototype.getSouthEast=function(){return new G(this.getEast(),this.getSouth())},Y.prototype.getWest=function(){return this._sw.lng},Y.prototype.getSouth=function(){return this._sw.lat},Y.prototype.getEast=function(){return this._ne.lng},Y.prototype.getNorth=function(){return this._ne.lat},Y.prototype.toArray=function(){return[this._sw.toArray(),this._ne.toArray()]},Y.prototype.toString=function(){return"LngLatBounds("+this._sw.toString()+", "+this._ne.toString()+")"},Y.prototype.isEmpty=function(){return!(this._sw&&this._ne)},Y.convert=function(t){return!t||t instanceof Y?t:new Y(t)};var W=function(t,e,r){this.bounds=Y.convert(this.validateBounds(t)),this.minzoom=e||0,this.maxzoom=r||24};W.prototype.validateBounds=function(t){return Array.isArray(t)&&4===t.length?[Math.max(-180,t[0]),Math.max(-90,t[1]),Math.min(180,t[2]),Math.min(90,t[3])]:[-180,-90,180,90]},W.prototype.contains=function(t){var e=Math.floor(this.lngX(this.bounds.getWest(),t.z)),r=Math.floor(this.latY(this.bounds.getNorth(),t.z)),n=Math.ceil(this.lngX(this.bounds.getEast(),t.z)),i=Math.ceil(this.latY(this.bounds.getSouth(),t.z));return t.x>=e&&t.x<n&&t.y>=r&&t.y<i},W.prototype.lngX=function(t,e){return(t+180)*(Math.pow(2,e)/360)},W.prototype.latY=function(e,r){var n=t.clamp(Math.sin(Math.PI/180*e),-.9999,.9999),i=Math.pow(2,r)/(2*Math.PI);return Math.pow(2,r-1)+.5*Math.log((1+n)/(1-n))*-i};var X=function(e){function r(r,n,i,a){if(e.call(this),this.id=r,this.dispatcher=i,this.type="vector",this.minzoom=0,this.maxzoom=22,this.scheme="xyz",this.tileSize=512,this.reparseOverscaled=!0,this.isTileClipped=!0,t.extend(this,t.pick(n,["url","scheme","tileSize"])),this._options=t.extend({type:"vector"},n),this._collectResourceTiming=n.collectResourceTiming,512!==this.tileSize)throw new Error("vector tile sources must have a tileSize of 512");this.setEventedParent(a)}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.load=function(){var e=this;this.fire(new t.Event("dataloading",{dataType:"source"})),q(this._options,this.map._transformRequest,function(r,n){r?e.fire(new t.ErrorEvent(r)):n&&(t.extend(e,n),n.bounds&&(e.tileBounds=new W(n.bounds,e.minzoom,e.maxzoom)),e.fire(new t.Event("data",{dataType:"source",sourceDataType:"metadata"})),e.fire(new t.Event("data",{dataType:"source",sourceDataType:"content"})))})},r.prototype.hasTile=function(t){return!this.tileBounds||this.tileBounds.contains(t.canonical)},r.prototype.onAdd=function(t){this.map=t,this.load()},r.prototype.serialize=function(){return t.extend({},this._options)},r.prototype.loadTile=function(e,r){var n=k(e.tileID.canonical.url(this.tiles,this.scheme),this.url),i={request:this.map._transformRequest(n,t.ResourceType.Tile),uid:e.uid,tileID:e.tileID,zoom:e.tileID.overscaledZ,tileSize:this.tileSize*e.tileID.overscaleFactor(),type:this.type,source:this.id,pixelRatio:a.devicePixelRatio,showCollisionBoxes:this.map.showCollisionBoxes};function o(t,n){return e.aborted?r(null):t?r(t):(n&&n.resourceTiming&&(e.resourceTiming=n.resourceTiming),this.map._refreshExpiredTiles&&e.setExpiryData(n),e.loadVectorData(n,this.map.painter),r(null),void(e.reloadCallback&&(this.loadTile(e,e.reloadCallback),e.reloadCallback=null)))}i.request.collectResourceTiming=this._collectResourceTiming,void 0===e.workerID||"expired"===e.state?e.workerID=this.dispatcher.send("loadTile",i,o.bind(this)):"loading"===e.state?e.reloadCallback=r:this.dispatcher.send("reloadTile",i,o.bind(this),e.workerID)},r.prototype.abortTile=function(t){this.dispatcher.send("abortTile",{uid:t.uid,type:this.type,source:this.id},void 0,t.workerID)},r.prototype.unloadTile=function(t){t.unloadVectorData(),this.dispatcher.send("removeTile",{uid:t.uid,type:this.type,source:this.id},void 0,t.workerID)},r.prototype.hasTransition=function(){return!1},r}(t.Evented),Z=function(e){function r(r,n,i,a){e.call(this),this.id=r,this.dispatcher=i,this.setEventedParent(a),this.type="raster",this.minzoom=0,this.maxzoom=22,this.roundZoom=!0,this.scheme="xyz",this.tileSize=512,this._loaded=!1,this._options=t.extend({},n),t.extend(this,t.pick(n,["url","scheme","tileSize"]))}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.load=function(){var e=this;this.fire(new t.Event("dataloading",{dataType:"source"})),q(this._options,this.map._transformRequest,function(r,n){r?e.fire(new t.ErrorEvent(r)):n&&(t.extend(e,n),n.bounds&&(e.tileBounds=new W(n.bounds,e.minzoom,e.maxzoom)),e.fire(new t.Event("data",{dataType:"source",sourceDataType:"metadata"})),e.fire(new t.Event("data",{dataType:"source",sourceDataType:"content"})))})},r.prototype.onAdd=function(t){this.map=t,this.load()},r.prototype.serialize=function(){return t.extend({},this._options)},r.prototype.hasTile=function(t){return!this.tileBounds||this.tileBounds.contains(t.canonical)},r.prototype.loadTile=function(e,r){var n=this,i=k(e.tileID.canonical.url(this.tiles,this.scheme),this.url,this.tileSize);e.request=t.getImage(this.map._transformRequest(i,t.ResourceType.Tile),function(t,i){if(delete e.request,e.aborted)e.state="unloaded",r(null);else if(t)e.state="errored",r(t);else if(i){n.map._refreshExpiredTiles&&e.setExpiryData(i),delete i.cacheControl,delete i.expires;var a=n.map.painter.context,o=a.gl;e.texture=n.map.painter.getTileTexture(i.width),e.texture?e.texture.update(i,{useMipmap:!0}):(e.texture=new z(a,i,o.RGBA,{useMipmap:!0}),e.texture.bind(o.LINEAR,o.CLAMP_TO_EDGE,o.LINEAR_MIPMAP_NEAREST),a.extTextureFilterAnisotropic&&o.texParameterf(o.TEXTURE_2D,a.extTextureFilterAnisotropic.TEXTURE_MAX_ANISOTROPY_EXT,a.extTextureFilterAnisotropicMax)),e.state="loaded",r(null)}})},r.prototype.abortTile=function(t,e){t.request&&(t.request.abort(),delete t.request),e()},r.prototype.unloadTile=function(t,e){t.texture&&this.map.painter.saveTileTexture(t.texture),e()},r.prototype.hasTransition=function(){return!1},r}(t.Evented),$=function(e){function r(r,n,i,a){e.call(this,r,n,i,a),this.type="raster-dem",this.maxzoom=22,this._options=t.extend({},n),this.encoding=n.encoding||"mapbox"}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.serialize=function(){return{type:"raster-dem",url:this.url,tileSize:this.tileSize,tiles:this.tiles,bounds:this.bounds,encoding:this.encoding}},r.prototype.loadTile=function(e,r){var n=k(e.tileID.canonical.url(this.tiles,this.scheme),this.url,this.tileSize);e.request=t.getImage(this.map._transformRequest(n,t.ResourceType.Tile),function(t,n){if(delete e.request,e.aborted)e.state="unloaded",r(null);else if(t)e.state="errored",r(t);else if(n){this.map._refreshExpiredTiles&&e.setExpiryData(n),delete n.cacheControl,delete n.expires;var i=a.getImageData(n),o={uid:e.uid,coord:e.tileID,source:this.id,rawImageData:i,encoding:this.encoding};e.workerID&&"expired"!==e.state||(e.workerID=this.dispatcher.send("loadDEMTile",o,function(t,n){t&&(e.state="errored",r(t)),n&&(e.dem=n,e.needsHillshadePrepare=!0,e.state="loaded",r(null))}.bind(this)))}}.bind(this)),e.neighboringTiles=this._getNeighboringTiles(e.tileID)},r.prototype._getNeighboringTiles=function(e){var r=e.canonical,n=Math.pow(2,r.z),i=(r.x-1+n)%n,a=0===r.x?e.wrap-1:e.wrap,o=(r.x+1+n)%n,s=r.x+1===n?e.wrap+1:e.wrap,l={};return l[new t.OverscaledTileID(e.overscaledZ,a,r.z,i,r.y).key]={backfilled:!1},l[new t.OverscaledTileID(e.overscaledZ,s,r.z,o,r.y).key]={backfilled:!1},r.y>0&&(l[new t.OverscaledTileID(e.overscaledZ,a,r.z,i,r.y-1).key]={backfilled:!1},l[new t.OverscaledTileID(e.overscaledZ,e.wrap,r.z,r.x,r.y-1).key]={backfilled:!1},l[new t.OverscaledTileID(e.overscaledZ,s,r.z,o,r.y-1).key]={backfilled:!1}),r.y+1<n&&(l[new t.OverscaledTileID(e.overscaledZ,a,r.z,i,r.y+1).key]={backfilled:!1},l[new t.OverscaledTileID(e.overscaledZ,e.wrap,r.z,r.x,r.y+1).key]={backfilled:!1},l[new t.OverscaledTileID(e.overscaledZ,s,r.z,o,r.y+1).key]={backfilled:!1}),l},r.prototype.unloadTile=function(t){t.demTexture&&this.map.painter.saveTileTexture(t.demTexture),t.fbo&&(t.fbo.destroy(),delete t.fbo),t.dem&&delete t.dem,delete t.neighboringTiles,t.state="unloaded",this.dispatcher.send("removeDEMTile",{uid:t.uid,source:this.id},void 0,t.workerID)},r}(Z),J=function(e){function r(r,n,i,a){e.call(this),this.id=r,this.type="geojson",this.minzoom=0,this.maxzoom=18,this.tileSize=512,this.isTileClipped=!0,this.reparseOverscaled=!0,this._removed=!1,this.dispatcher=i,this.setEventedParent(a),this._data=n.data,this._options=t.extend({},n),this._collectResourceTiming=n.collectResourceTiming,this._resourceTiming=[],void 0!==n.maxzoom&&(this.maxzoom=n.maxzoom),n.type&&(this.type=n.type);var o=t.default$8/this.tileSize;this.workerOptions=t.extend({source:this.id,cluster:n.cluster||!1,geojsonVtOptions:{buffer:(void 0!==n.buffer?n.buffer:128)*o,tolerance:(void 0!==n.tolerance?n.tolerance:.375)*o,extent:t.default$8,maxZoom:this.maxzoom,lineMetrics:n.lineMetrics||!1},superclusterOptions:{maxZoom:void 0!==n.clusterMaxZoom?Math.min(n.clusterMaxZoom,this.maxzoom-1):this.maxzoom-1,extent:t.default$8,radius:(n.clusterRadius||50)*o,log:!1}},n.workerOptions)}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.load=function(){var e=this;this.fire(new t.Event("dataloading",{dataType:"source"})),this._updateWorkerData(function(r){if(r)e.fire(new t.ErrorEvent(r));else{var n={dataType:"source",sourceDataType:"metadata"};e._collectResourceTiming&&e._resourceTiming&&e._resourceTiming.length>0&&(n.resourceTiming=e._resourceTiming,e._resourceTiming=[]),e.fire(new t.Event("data",n))}})},r.prototype.onAdd=function(t){this.map=t,this.load()},r.prototype.setData=function(e){var r=this;return this._data=e,this.fire(new t.Event("dataloading",{dataType:"source"})),this._updateWorkerData(function(e){if(e)return r.fire(new t.ErrorEvent(e));var n={dataType:"source",sourceDataType:"content"};r._collectResourceTiming&&r._resourceTiming&&r._resourceTiming.length>0&&(n.resourceTiming=r._resourceTiming,r._resourceTiming=[]),r.fire(new t.Event("data",n))}),this},r.prototype._updateWorkerData=function(e){var r,n,i=this,a=t.extend({},this.workerOptions),o=this._data;"string"==typeof o?(a.request=this.map._transformRequest((r=o,(n=t.default.document.createElement("a")).href=r,n.href),t.ResourceType.Source),a.request.collectResourceTiming=this._collectResourceTiming):a.data=JSON.stringify(o),this.workerID=this.dispatcher.send(this.type+"."+a.source+".loadData",a,function(t,r){i._removed||r&&r.abandoned||(i._loaded=!0,r&&r.resourceTiming&&r.resourceTiming[i.id]&&(i._resourceTiming=r.resourceTiming[i.id].slice(0)),i.dispatcher.send(i.type+"."+a.source+".coalesce",null,null,i.workerID),e(t))},this.workerID)},r.prototype.loadTile=function(t,e){var r=this,n=void 0===t.workerID?"loadTile":"reloadTile",i={type:this.type,uid:t.uid,tileID:t.tileID,zoom:t.tileID.overscaledZ,maxZoom:this.maxzoom,tileSize:this.tileSize,source:this.id,pixelRatio:a.devicePixelRatio,showCollisionBoxes:this.map.showCollisionBoxes};t.workerID=this.dispatcher.send(n,i,function(i,a){return t.unloadVectorData(),t.aborted?e(null):i?e(i):(t.loadVectorData(a,r.map.painter,"reloadTile"===n),e(null))},this.workerID)},r.prototype.abortTile=function(t){t.aborted=!0},r.prototype.unloadTile=function(t){t.unloadVectorData(),this.dispatcher.send("removeTile",{uid:t.uid,type:this.type,source:this.id},null,t.workerID)},r.prototype.onRemove=function(){this._removed=!0,this.dispatcher.send("removeSource",{type:this.type,source:this.id},null,this.workerID)},r.prototype.serialize=function(){return t.extend({},this._options,{type:this.type,data:this._data})},r.prototype.hasTransition=function(){return!1},r}(t.Evented),K=t.createLayout([{name:"a_pos",type:"Int16",components:2},{name:"a_texture_pos",type:"Int16",components:2}]),Q=function(){this.boundProgram=null,this.boundLayoutVertexBuffer=null,this.boundPaintVertexBuffers=[],this.boundIndexBuffer=null,this.boundVertexOffset=null,this.boundDynamicVertexBuffer=null,this.vao=null};Q.prototype.bind=function(t,e,r,n,i,a,o,s){this.context=t;for(var l=this.boundPaintVertexBuffers.length!==n.length,c=0;!l&&c<n.length;c++)this.boundPaintVertexBuffers[c]!==n[c]&&(l=!0);var u=!this.vao||this.boundProgram!==e||this.boundLayoutVertexBuffer!==r||l||this.boundIndexBuffer!==i||this.boundVertexOffset!==a||this.boundDynamicVertexBuffer!==o||this.boundDynamicVertexBuffer2!==s;!t.extVertexArrayObject||u?this.freshBind(e,r,n,i,a,o,s):(t.bindVertexArrayOES.set(this.vao),o&&o.bind(),i&&i.dynamicDraw&&i.bind(),s&&s.bind())},Q.prototype.freshBind=function(t,e,r,n,i,a,o){var s,l=t.numAttributes,c=this.context,u=c.gl;if(c.extVertexArrayObject)this.vao&&this.destroy(),this.vao=c.extVertexArrayObject.createVertexArrayOES(),c.bindVertexArrayOES.set(this.vao),s=0,this.boundProgram=t,this.boundLayoutVertexBuffer=e,this.boundPaintVertexBuffers=r,this.boundIndexBuffer=n,this.boundVertexOffset=i,this.boundDynamicVertexBuffer=a,this.boundDynamicVertexBuffer2=o;else{s=c.currentNumAttributes||0;for(var f=l;f<s;f++)u.disableVertexAttribArray(f)}e.enableAttributes(u,t);for(var h=0,p=r;h<p.length;h+=1)p[h].enableAttributes(u,t);a&&a.enableAttributes(u,t),o&&o.enableAttributes(u,t),e.bind(),e.setVertexAttribPointers(u,t,i);for(var d=0,g=r;d<g.length;d+=1){var v=g[d];v.bind(),v.setVertexAttribPointers(u,t,i)}a&&(a.bind(),a.setVertexAttribPointers(u,t,i)),n&&n.bind(),o&&(o.bind(),o.setVertexAttribPointers(u,t,i)),c.currentNumAttributes=l},Q.prototype.destroy=function(){this.vao&&(this.context.extVertexArrayObject.deleteVertexArrayOES(this.vao),this.vao=null)};var tt=function(e){function r(t,r,n,i){e.call(this),this.id=t,this.dispatcher=n,this.coordinates=r.coordinates,this.type="image",this.minzoom=0,this.maxzoom=22,this.tileSize=512,this.tiles={},this.setEventedParent(i),this.options=r}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.load=function(){var e=this;this.fire(new t.Event("dataloading",{dataType:"source"})),this.url=this.options.url,t.getImage(this.map._transformRequest(this.url,t.ResourceType.Image),function(r,n){r?e.fire(new t.ErrorEvent(r)):n&&(e.image=a.getImageData(n),e._finishLoading())})},r.prototype._finishLoading=function(){this.map&&(this.setCoordinates(this.coordinates),this.fire(new t.Event("data",{dataType:"source",sourceDataType:"metadata"})))},r.prototype.onAdd=function(t){this.map=t,this.load()},r.prototype.setCoordinates=function(e){this.coordinates=e;var r=this.map,n=e.map(function(t){return r.transform.locationCoordinate(G.convert(t)).zoomTo(0)}),i=this.centerCoord=t.getCoordinatesCenter(n);i.column=Math.floor(i.column),i.row=Math.floor(i.row),this.tileID=new t.CanonicalTileID(i.zoom,i.column,i.row),this.minzoom=this.maxzoom=i.zoom;var a=n.map(function(e){var r=e.zoomTo(i.zoom);return new t.default$1(Math.round((r.column-i.column)*t.default$8),Math.round((r.row-i.row)*t.default$8))});return this._boundsArray=new t.RasterBoundsArray,this._boundsArray.emplaceBack(a[0].x,a[0].y,0,0),this._boundsArray.emplaceBack(a[1].x,a[1].y,t.default$8,0),this._boundsArray.emplaceBack(a[3].x,a[3].y,0,t.default$8),this._boundsArray.emplaceBack(a[2].x,a[2].y,t.default$8,t.default$8),this.boundsBuffer&&(this.boundsBuffer.destroy(),delete this.boundsBuffer),this.fire(new t.Event("data",{dataType:"source",sourceDataType:"content"})),this},r.prototype.prepare=function(){if(0!==Object.keys(this.tiles).length&&this.image){var t=this.map.painter.context,e=t.gl;for(var r in this.boundsBuffer||(this.boundsBuffer=t.createVertexBuffer(this._boundsArray,K.members)),this.boundsVAO||(this.boundsVAO=new Q),this.texture||(this.texture=new z(t,this.image,e.RGBA),this.texture.bind(e.LINEAR,e.CLAMP_TO_EDGE)),this.tiles){var n=this.tiles[r];"loaded"!==n.state&&(n.state="loaded",n.texture=this.texture)}}},r.prototype.loadTile=function(t,e){this.tileID&&this.tileID.equals(t.tileID.canonical)?(this.tiles[String(t.tileID.wrap)]=t,t.buckets={},e(null)):(t.state="errored",e(null))},r.prototype.serialize=function(){return{type:"image",url:this.options.url,coordinates:this.coordinates}},r.prototype.hasTransition=function(){return!1},r}(t.Evented),et=function(e){function r(t,r,n,i){e.call(this,t,r,n,i),this.roundZoom=!0,this.type="video",this.options=r}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.load=function(){var e=this,r=this.options;this.urls=[];for(var n=0,i=r.urls;n<i.length;n+=1){var a=i[n];e.urls.push(e.map._transformRequest(a,t.ResourceType.Source).url)}t.getVideo(this.urls,function(r,n){r?e.fire(new t.ErrorEvent(r)):n&&(e.video=n,e.video.loop=!0,e.video.addEventListener("playing",function(){e.map._rerender()}),e.map&&e.video.play(),e._finishLoading())})},r.prototype.getVideo=function(){return this.video},r.prototype.onAdd=function(t){this.map||(this.map=t,this.load(),this.video&&(this.video.play(),this.setCoordinates(this.coordinates)))},r.prototype.prepare=function(){if(!(0===Object.keys(this.tiles).length||this.video.readyState<2)){var t=this.map.painter.context,e=t.gl;for(var r in this.boundsBuffer||(this.boundsBuffer=t.createVertexBuffer(this._boundsArray,K.members)),this.boundsVAO||(this.boundsVAO=new Q),this.texture?this.video.paused||(this.texture.bind(e.LINEAR,e.CLAMP_TO_EDGE),e.texSubImage2D(e.TEXTURE_2D,0,0,0,e.RGBA,e.UNSIGNED_BYTE,this.video)):(this.texture=new z(t,this.video,e.RGBA),this.texture.bind(e.LINEAR,e.CLAMP_TO_EDGE)),this.tiles){var n=this.tiles[r];"loaded"!==n.state&&(n.state="loaded",n.texture=this.texture)}}},r.prototype.serialize=function(){return{type:"video",urls:this.urls,coordinates:this.coordinates}},r.prototype.hasTransition=function(){return this.video&&!this.video.paused},r}(tt),rt=function(e){function r(r,n,i,a){e.call(this,r,n,i,a),n.coordinates?Array.isArray(n.coordinates)&&4===n.coordinates.length&&!n.coordinates.some(function(t){return!Array.isArray(t)||2!==t.length||t.some(function(t){return"number"!=typeof t})})||this.fire(new t.ErrorEvent(new t.default$9("sources."+r,null,'"coordinates" property must be an array of 4 longitude/latitude array pairs'))):this.fire(new t.ErrorEvent(new t.default$9("sources."+r,null,'missing required property "coordinates"'))),n.animate&&"boolean"!=typeof n.animate&&this.fire(new t.ErrorEvent(new t.default$9("sources."+r,null,'optional "animate" property must be a boolean value'))),n.canvas?"string"==typeof n.canvas||n.canvas instanceof t.default.HTMLCanvasElement||this.fire(new t.ErrorEvent(new t.default$9("sources."+r,null,'"canvas" must be either a string representing the ID of the canvas element from which to read, or an HTMLCanvasElement instance'))):this.fire(new t.ErrorEvent(new t.default$9("sources."+r,null,'missing required property "canvas"'))),this.options=n,this.animate=void 0===n.animate||n.animate}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.load=function(){this.canvas||(this.canvas=this.options.canvas instanceof t.default.HTMLCanvasElement?this.options.canvas:t.default.document.getElementById(this.options.canvas)),this.width=this.canvas.width,this.height=this.canvas.height,this._hasInvalidDimensions()?this.fire(new t.ErrorEvent(new Error("Canvas dimensions cannot be less than or equal to zero."))):(this.play=function(){this._playing=!0,this.map._rerender()},this.pause=function(){this._playing=!1},this._finishLoading())},r.prototype.getCanvas=function(){return this.canvas},r.prototype.onAdd=function(t){this.map=t,this.load(),this.canvas&&this.animate&&this.play()},r.prototype.onRemove=function(){this.pause()},r.prototype.prepare=function(){var t=!1;if(this.canvas.width!==this.width&&(this.width=this.canvas.width,t=!0),this.canvas.height!==this.height&&(this.height=this.canvas.height,t=!0),!this._hasInvalidDimensions()&&0!==Object.keys(this.tiles).length){var e=this.map.painter.context,r=e.gl;for(var n in this.boundsBuffer||(this.boundsBuffer=e.createVertexBuffer(this._boundsArray,K.members)),this.boundsVAO||(this.boundsVAO=new Q),this.texture?t?this.texture.update(this.canvas):this._playing&&(this.texture.bind(r.LINEAR,r.CLAMP_TO_EDGE),r.texSubImage2D(r.TEXTURE_2D,0,0,0,r.RGBA,r.UNSIGNED_BYTE,this.canvas)):(this.texture=new z(e,this.canvas,r.RGBA),this.texture.bind(r.LINEAR,r.CLAMP_TO_EDGE)),this.tiles){var i=this.tiles[n];"loaded"!==i.state&&(i.state="loaded",i.texture=this.texture)}}},r.prototype.serialize=function(){return{type:"canvas",coordinates:this.coordinates}},r.prototype.hasTransition=function(){return this._playing},r.prototype._hasInvalidDimensions=function(){for(var t=0,e=[this.canvas.width,this.canvas.height];t<e.length;t+=1){var r=e[t];if(isNaN(r)||r<=0)return!0}return!1},r}(tt),nt={vector:X,raster:Z,"raster-dem":$,geojson:J,video:et,image:tt,canvas:rt},it=function(e,r,n,i){var a=new nt[r.type](e,r,n,i);if(a.id!==e)throw new Error("Expected Source id to be "+e+" instead of "+a.id);return t.bindAll(["load","abort","unload","serialize","prepare"],a),a};function at(t,e,r,n,i){var a=i.maxPitchScaleFactor(),o=t.tilesIn(r,a);o.sort(ot);for(var s=[],l=0,c=o;l<c.length;l+=1){var u=c[l];s.push({wrappedTileID:u.tileID.wrapped().key,queryResults:u.tile.queryRenderedFeatures(e,u.queryGeometry,u.scale,n,i,a,t.transform.calculatePosMatrix(u.tileID.toUnwrapped()))})}return function(t){for(var e={},r={},n=0,i=t;n<i.length;n+=1){var a=i[n],o=a.queryResults,s=a.wrappedTileID,l=r[s]=r[s]||{};for(var c in o)for(var u=o[c],f=l[c]=l[c]||{},h=e[c]=e[c]||[],p=0,d=u;p<d.length;p+=1){var g=d[p];f[g.featureIndex]||(f[g.featureIndex]=!0,h.push(g.feature))}}return e}(s)}function ot(t,e){var r=t.tileID,n=e.tileID;return r.overscaledZ-n.overscaledZ||r.canonical.y-n.canonical.y||r.wrap-n.wrap||r.canonical.x-n.canonical.x}var st=function(e,r){this.tileID=e,this.uid=t.uniqueId(),this.uses=0,this.tileSize=r,this.buckets={},this.expirationTime=null,this.queryPadding=0,this.expiredRequestCount=0,this.state="loading"};st.prototype.registerFadeDuration=function(t){var e=t+this.timeAdded;e<a.now()||this.fadeEndTime&&e<this.fadeEndTime||(this.fadeEndTime=e)},st.prototype.wasRequested=function(){return"errored"===this.state||"loaded"===this.state||"reloading"===this.state},st.prototype.loadVectorData=function(e,r,n){if(this.hasData()&&this.unloadVectorData(),this.state="loaded",e){if(e.featureIndex&&(this.latestFeatureIndex=e.featureIndex,e.rawTileData?(this.latestRawTileData=e.rawTileData,this.latestFeatureIndex.rawTileData=e.rawTileData):this.latestRawTileData&&(this.latestFeatureIndex.rawTileData=this.latestRawTileData)),this.collisionBoxArray=e.collisionBoxArray,this.buckets=function(t,e){var r={};if(!e)return r;for(var n=0,i=t;n<i.length;n+=1){var a=i[n],o=a.layerIds.map(function(t){return e.getLayer(t)}).filter(Boolean);if(0!==o.length){a.layers=o;for(var s=0,l=o;s<l.length;s+=1)r[l[s].id]=a}}return r}(e.buckets,r.style),n)for(var i in this.buckets){var a=this.buckets[i];a instanceof t.default$14&&(a.justReloaded=!0)}for(var o in this.queryPadding=0,this.buckets){var s=this.buckets[o];this.queryPadding=Math.max(this.queryPadding,r.style.getLayer(s.layerIds[0]).queryRadius(s))}e.iconAtlasImage&&(this.iconAtlasImage=e.iconAtlasImage),e.glyphAtlasImage&&(this.glyphAtlasImage=e.glyphAtlasImage)}else this.collisionBoxArray=new t.CollisionBoxArray},st.prototype.unloadVectorData=function(){for(var t in this.buckets)this.buckets[t].destroy();this.buckets={},this.iconAtlasTexture&&this.iconAtlasTexture.destroy(),this.glyphAtlasTexture&&this.glyphAtlasTexture.destroy(),this.latestFeatureIndex=null,this.state="unloaded"},st.prototype.unloadDEMData=function(){this.dem=null,this.neighboringTiles=null,this.state="unloaded"},st.prototype.getBucket=function(t){return this.buckets[t.id]},st.prototype.upload=function(t){for(var e in this.buckets){var r=this.buckets[e];r.uploaded||(r.upload(t),r.uploaded=!0)}var n=t.gl;this.iconAtlasImage&&(this.iconAtlasTexture=new z(t,this.iconAtlasImage,n.RGBA),this.iconAtlasImage=null),this.glyphAtlasImage&&(this.glyphAtlasTexture=new z(t,this.glyphAtlasImage,n.ALPHA),this.glyphAtlasImage=null)},st.prototype.queryRenderedFeatures=function(t,e,r,n,i,a,o){return this.latestFeatureIndex&&this.latestFeatureIndex.rawTileData?this.latestFeatureIndex.query({queryGeometry:e,scale:r,tileSize:this.tileSize,posMatrix:o,transform:i,params:n,queryPadding:this.queryPadding*a},t):{}},st.prototype.querySourceFeatures=function(e,r){if(this.latestFeatureIndex&&this.latestFeatureIndex.rawTileData){var n=this.latestFeatureIndex.loadVTLayers(),i=r?r.sourceLayer:"",a=n._geojsonTileLayer||n[i];if(a)for(var o=t.default$13(r&&r.filter),s={z:this.tileID.overscaledZ,x:this.tileID.canonical.x,y:this.tileID.canonical.y},l=0;l<a.length;l++){var c=a.feature(l);if(o(new t.default$16(this.tileID.overscaledZ),c)){var u=new t.default$12(c,s.z,s.x,s.y);u.tile=s,e.push(u)}}}},st.prototype.clearMask=function(){this.segments&&(this.segments.destroy(),delete this.segments),this.maskedBoundsBuffer&&(this.maskedBoundsBuffer.destroy(),delete this.maskedBoundsBuffer),this.maskedIndexBuffer&&(this.maskedIndexBuffer.destroy(),delete this.maskedIndexBuffer)},st.prototype.setMask=function(e,r){if(!t.default$10(this.mask,e)&&(this.mask=e,this.clearMask(),!t.default$10(e,{0:!0}))){var n=new t.RasterBoundsArray,i=new t.TriangleIndexArray;this.segments=new t.default$15,this.segments.prepareSegment(0,n,i);for(var a=Object.keys(e),o=0;o<a.length;o++){var s=e[a[o]],l=t.default$8>>s.z,c=new t.default$1(s.x*l,s.y*l),u=new t.default$1(c.x+l,c.y+l),f=this.segments.prepareSegment(4,n,i);n.emplaceBack(c.x,c.y,c.x,c.y),n.emplaceBack(u.x,c.y,u.x,c.y),n.emplaceBack(c.x,u.y,c.x,u.y),n.emplaceBack(u.x,u.y,u.x,u.y);var h=f.vertexLength;i.emplaceBack(h,h+1,h+2),i.emplaceBack(h+1,h+2,h+3),f.vertexLength+=4,f.primitiveLength+=2}this.maskedBoundsBuffer=r.createVertexBuffer(n,K.members),this.maskedIndexBuffer=r.createIndexBuffer(i)}},st.prototype.hasData=function(){return"loaded"===this.state||"reloading"===this.state||"expired"===this.state},st.prototype.setExpiryData=function(e){var r=this.expirationTime;if(e.cacheControl){var n=t.parseCacheControl(e.cacheControl);n["max-age"]&&(this.expirationTime=Date.now()+1e3*n["max-age"])}else e.expires&&(this.expirationTime=new Date(e.expires).getTime());if(this.expirationTime){var i=Date.now(),a=!1;if(this.expirationTime>i)a=!1;else if(r)if(this.expirationTime<r)a=!0;else{var o=this.expirationTime-r;o?this.expirationTime=i+Math.max(o,3e4):a=!0}else a=!0;a?(this.expiredRequestCount++,this.state="expired"):this.expiredRequestCount=0}},st.prototype.getExpiryTimeout=function(){if(this.expirationTime)return this.expiredRequestCount?1e3*(1<<Math.min(this.expiredRequestCount-1,31)):Math.min(this.expirationTime-(new Date).getTime(),Math.pow(2,31)-1)};var lt=function(t,e){this.max=t,this.onRemove=e,this.reset()};lt.prototype.reset=function(){for(var t in this.data)for(var e=0,r=this.data[t];e<r.length;e+=1){var n=r[e];n.timeout&&clearTimeout(n.timeout),this.onRemove(n.value)}return this.data={},this.order=[],this},lt.prototype.add=function(t,e,r){var n=this,i=t.wrapped().key;void 0===this.data[i]&&(this.data[i]=[]);var a={value:e,timeout:void 0};if(void 0!==r&&(a.timeout=setTimeout(function(){n.remove(t,a)},r)),this.data[i].push(a),this.order.push(i),this.order.length>this.max){var o=this._getAndRemoveByKey(this.order[0]);o&&this.onRemove(o)}return this},lt.prototype.has=function(t){return t.wrapped().key in this.data},lt.prototype.getAndRemove=function(t){return this.has(t)?this._getAndRemoveByKey(t.wrapped().key):null},lt.prototype._getAndRemoveByKey=function(t){var e=this.data[t].shift();return e.timeout&&clearTimeout(e.timeout),0===this.data[t].length&&delete this.data[t],this.order.splice(this.order.indexOf(t),1),e.value},lt.prototype.get=function(t){return this.has(t)?this.data[t.wrapped().key][0].value:null},lt.prototype.remove=function(t,e){if(!this.has(t))return this;var r=t.wrapped().key,n=void 0===e?0:this.data[r].indexOf(e),i=this.data[r][n];return this.data[r].splice(n,1),i.timeout&&clearTimeout(i.timeout),0===this.data[r].length&&delete this.data[r],this.onRemove(i.value),this.order.splice(this.order.indexOf(r),1),this},lt.prototype.setMaxSize=function(t){for(this.max=t;this.order.length>this.max;){var e=this._getAndRemoveByKey(this.order[0]);e&&this.onRemove(e)}return this};var ct=function(t,e,r){this.context=t;var n=t.gl;this.buffer=n.createBuffer(),this.dynamicDraw=Boolean(r),this.unbindVAO(),t.bindElementBuffer.set(this.buffer),n.bufferData(n.ELEMENT_ARRAY_BUFFER,e.arrayBuffer,this.dynamicDraw?n.DYNAMIC_DRAW:n.STATIC_DRAW),this.dynamicDraw||delete e.arrayBuffer};ct.prototype.unbindVAO=function(){this.context.extVertexArrayObject&&this.context.bindVertexArrayOES.set(null)},ct.prototype.bind=function(){this.context.bindElementBuffer.set(this.buffer)},ct.prototype.updateData=function(t){var e=this.context.gl;this.unbindVAO(),this.bind(),e.bufferSubData(e.ELEMENT_ARRAY_BUFFER,0,t.arrayBuffer)},ct.prototype.destroy=function(){var t=this.context.gl;this.buffer&&(t.deleteBuffer(this.buffer),delete this.buffer)};var ut={Int8:"BYTE",Uint8:"UNSIGNED_BYTE",Int16:"SHORT",Uint16:"UNSIGNED_SHORT",Int32:"INT",Uint32:"UNSIGNED_INT",Float32:"FLOAT"},ft=function(t,e,r,n){this.length=e.length,this.attributes=r,this.itemSize=e.bytesPerElement,this.dynamicDraw=n,this.context=t;var i=t.gl;this.buffer=i.createBuffer(),t.bindVertexBuffer.set(this.buffer),i.bufferData(i.ARRAY_BUFFER,e.arrayBuffer,this.dynamicDraw?i.DYNAMIC_DRAW:i.STATIC_DRAW),this.dynamicDraw||delete e.arrayBuffer};ft.prototype.bind=function(){this.context.bindVertexBuffer.set(this.buffer)},ft.prototype.updateData=function(t){var e=this.context.gl;this.bind(),e.bufferSubData(e.ARRAY_BUFFER,0,t.arrayBuffer)},ft.prototype.enableAttributes=function(t,e){for(var r=0;r<this.attributes.length;r++){var n=this.attributes[r],i=e.attributes[n.name];void 0!==i&&t.enableVertexAttribArray(i)}},ft.prototype.setVertexAttribPointers=function(t,e,r){for(var n=0;n<this.attributes.length;n++){var i=this.attributes[n],a=e.attributes[i.name];void 0!==a&&t.vertexAttribPointer(a,i.components,t[ut[i.type]],!1,this.itemSize,i.offset+this.itemSize*(r||0))}},ft.prototype.destroy=function(){var t=this.context.gl;this.buffer&&(t.deleteBuffer(this.buffer),delete this.buffer)};var ht=function(e){this.context=e,this.current=t.default$6.transparent};ht.prototype.get=function(){return this.current},ht.prototype.set=function(t){var e=this.current;t.r===e.r&&t.g===e.g&&t.b===e.b&&t.a===e.a||(this.context.gl.clearColor(t.r,t.g,t.b,t.a),this.current=t)};var pt=function(t){this.context=t,this.current=1};pt.prototype.get=function(){return this.current},pt.prototype.set=function(t){this.current!==t&&(this.context.gl.clearDepth(t),this.current=t)};var dt=function(t){this.context=t,this.current=0};dt.prototype.get=function(){return this.current},dt.prototype.set=function(t){this.current!==t&&(this.context.gl.clearStencil(t),this.current=t)};var gt=function(t){this.context=t,this.current=[!0,!0,!0,!0]};gt.prototype.get=function(){return this.current},gt.prototype.set=function(t){var e=this.current;t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]||(this.context.gl.colorMask(t[0],t[1],t[2],t[3]),this.current=t)};var vt=function(t){this.context=t,this.current=!0};vt.prototype.get=function(){return this.current},vt.prototype.set=function(t){this.current!==t&&(this.context.gl.depthMask(t),this.current=t)};var mt=function(t){this.context=t,this.current=255};mt.prototype.get=function(){return this.current},mt.prototype.set=function(t){this.current!==t&&(this.context.gl.stencilMask(t),this.current=t)};var yt=function(t){this.context=t,this.current={func:t.gl.ALWAYS,ref:0,mask:255}};yt.prototype.get=function(){return this.current},yt.prototype.set=function(t){var e=this.current;t.func===e.func&&t.ref===e.ref&&t.mask===e.mask||(this.context.gl.stencilFunc(t.func,t.ref,t.mask),this.current=t)};var xt=function(t){this.context=t;var e=this.context.gl;this.current=[e.KEEP,e.KEEP,e.KEEP]};xt.prototype.get=function(){return this.current},xt.prototype.set=function(t){var e=this.current;t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]||(this.context.gl.stencilOp(t[0],t[1],t[2]),this.current=t)};var bt=function(t){this.context=t,this.current=!1};bt.prototype.get=function(){return this.current},bt.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;t?e.enable(e.STENCIL_TEST):e.disable(e.STENCIL_TEST),this.current=t}};var _t=function(t){this.context=t,this.current=[0,1]};_t.prototype.get=function(){return this.current},_t.prototype.set=function(t){var e=this.current;t[0]===e[0]&&t[1]===e[1]||(this.context.gl.depthRange(t[0],t[1]),this.current=t)};var wt=function(t){this.context=t,this.current=!1};wt.prototype.get=function(){return this.current},wt.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;t?e.enable(e.DEPTH_TEST):e.disable(e.DEPTH_TEST),this.current=t}};var kt=function(t){this.context=t,this.current=t.gl.LESS};kt.prototype.get=function(){return this.current},kt.prototype.set=function(t){this.current!==t&&(this.context.gl.depthFunc(t),this.current=t)};var Tt=function(t){this.context=t,this.current=!1};Tt.prototype.get=function(){return this.current},Tt.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;t?e.enable(e.BLEND):e.disable(e.BLEND),this.current=t}};var At=function(t){this.context=t;var e=this.context.gl;this.current=[e.ONE,e.ZERO]};At.prototype.get=function(){return this.current},At.prototype.set=function(t){var e=this.current;t[0]===e[0]&&t[1]===e[1]||(this.context.gl.blendFunc(t[0],t[1]),this.current=t)};var Mt=function(e){this.context=e,this.current=t.default$6.transparent};Mt.prototype.get=function(){return this.current},Mt.prototype.set=function(t){var e=this.current;t.r===e.r&&t.g===e.g&&t.b===e.b&&t.a===e.a||(this.context.gl.blendColor(t.r,t.g,t.b,t.a),this.current=t)};var St=function(t){this.context=t,this.current=null};St.prototype.get=function(){return this.current},St.prototype.set=function(t){this.current!==t&&(this.context.gl.useProgram(t),this.current=t)};var Et=function(t){this.context=t,this.current=1};Et.prototype.get=function(){return this.current},Et.prototype.set=function(e){var r=this.context.lineWidthRange,n=t.clamp(e,r[0],r[1]);this.current!==n&&(this.context.gl.lineWidth(n),this.current=e)};var Ct=function(t){this.context=t,this.current=t.gl.TEXTURE0};Ct.prototype.get=function(){return this.current},Ct.prototype.set=function(t){this.current!==t&&(this.context.gl.activeTexture(t),this.current=t)};var Lt=function(t){this.context=t;var e=this.context.gl;this.current=[0,0,e.drawingBufferWidth,e.drawingBufferHeight]};Lt.prototype.get=function(){return this.current},Lt.prototype.set=function(t){var e=this.current;t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]||(this.context.gl.viewport(t[0],t[1],t[2],t[3]),this.current=t)};var zt=function(t){this.context=t,this.current=null};zt.prototype.get=function(){return this.current},zt.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;e.bindFramebuffer(e.FRAMEBUFFER,t),this.current=t}};var Ot=function(t){this.context=t,this.current=null};Ot.prototype.get=function(){return this.current},Ot.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;e.bindRenderbuffer(e.RENDERBUFFER,t),this.current=t}};var It=function(t){this.context=t,this.current=null};It.prototype.get=function(){return this.current},It.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;e.bindTexture(e.TEXTURE_2D,t),this.current=t}};var Dt=function(t){this.context=t,this.current=null};Dt.prototype.get=function(){return this.current},Dt.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;e.bindBuffer(e.ARRAY_BUFFER,t),this.current=t}};var Pt=function(t){this.context=t,this.current=null};Pt.prototype.get=function(){return this.current},Pt.prototype.set=function(t){var e=this.context.gl;e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,t),this.current=t};var Rt=function(t){this.context=t,this.current=null};Rt.prototype.get=function(){return this.current},Rt.prototype.set=function(t){this.current!==t&&this.context.extVertexArrayObject&&(this.context.extVertexArrayObject.bindVertexArrayOES(t),this.current=t)};var Ft=function(t){this.context=t,this.current=4};Ft.prototype.get=function(){return this.current},Ft.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;e.pixelStorei(e.UNPACK_ALIGNMENT,t),this.current=t}};var Bt=function(t){this.context=t,this.current=!1};Bt.prototype.get=function(){return this.current},Bt.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;e.pixelStorei(e.UNPACK_PREMULTIPLY_ALPHA_WEBGL,t),this.current=t}};var Nt=function(t,e){this.context=t,this.current=null,this.parent=e};Nt.prototype.get=function(){return this.current};var jt=function(t){function e(e,r){t.call(this,e,r),this.dirty=!1}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.set=function(t){if(this.dirty||this.current!==t){var e=this.context.gl;this.context.bindFramebuffer.set(this.parent),e.framebufferTexture2D(e.FRAMEBUFFER,e.COLOR_ATTACHMENT0,e.TEXTURE_2D,t,0),this.current=t,this.dirty=!1}},e.prototype.setDirty=function(){this.dirty=!0},e}(Nt),Vt=function(t){function e(){t.apply(this,arguments)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.set=function(t){if(this.current!==t){var e=this.context.gl;this.context.bindFramebuffer.set(this.parent),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.DEPTH_ATTACHMENT,e.RENDERBUFFER,t),this.current=t}},e}(Nt),Ut=function(t,e,r){this.context=t,this.width=e,this.height=r;var n=t.gl,i=this.framebuffer=n.createFramebuffer();this.colorAttachment=new jt(t,i),this.depthAttachment=new Vt(t,i)};Ut.prototype.destroy=function(){var t=this.context.gl,e=this.colorAttachment.get();e&&t.deleteTexture(e);var r=this.depthAttachment.get();r&&t.deleteRenderbuffer(r),t.deleteFramebuffer(this.framebuffer)};var Ht=function(t,e,r){this.func=t,this.mask=e,this.range=r};Ht.ReadOnly=!1,Ht.ReadWrite=!0,Ht.disabled=new Ht(519,Ht.ReadOnly,[0,1]);var qt=function(t,e,r,n,i,a){this.test=t,this.ref=e,this.mask=r,this.fail=n,this.depthFail=i,this.pass=a};qt.disabled=new qt({func:519,mask:0},0,0,7680,7680,7680);var Gt=function(t,e,r){this.blendFunction=t,this.blendColor=e,this.mask=r};Gt.disabled=new Gt(Gt.Replace=[1,0],t.default$6.transparent,[!1,!1,!1,!1]),Gt.unblended=new Gt(Gt.Replace,t.default$6.transparent,[!0,!0,!0,!0]),Gt.alphaBlended=new Gt([1,771],t.default$6.transparent,[!0,!0,!0,!0]);var Yt=function(t){this.gl=t,this.extVertexArrayObject=this.gl.getExtension("OES_vertex_array_object"),this.lineWidthRange=t.getParameter(t.ALIASED_LINE_WIDTH_RANGE),this.clearColor=new ht(this),this.clearDepth=new pt(this),this.clearStencil=new dt(this),this.colorMask=new gt(this),this.depthMask=new vt(this),this.stencilMask=new mt(this),this.stencilFunc=new yt(this),this.stencilOp=new xt(this),this.stencilTest=new bt(this),this.depthRange=new _t(this),this.depthTest=new wt(this),this.depthFunc=new kt(this),this.blend=new Tt(this),this.blendFunc=new At(this),this.blendColor=new Mt(this),this.program=new St(this),this.lineWidth=new Et(this),this.activeTexture=new Ct(this),this.viewport=new Lt(this),this.bindFramebuffer=new zt(this),this.bindRenderbuffer=new Ot(this),this.bindTexture=new It(this),this.bindVertexBuffer=new Dt(this),this.bindElementBuffer=new Pt(this),this.bindVertexArrayOES=this.extVertexArrayObject&&new Rt(this),this.pixelStoreUnpack=new Ft(this),this.pixelStoreUnpackPremultiplyAlpha=new Bt(this),this.extTextureFilterAnisotropic=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic"),this.extTextureFilterAnisotropic&&(this.extTextureFilterAnisotropicMax=t.getParameter(this.extTextureFilterAnisotropic.MAX_TEXTURE_MAX_ANISOTROPY_EXT)),this.extTextureHalfFloat=t.getExtension("OES_texture_half_float"),this.extTextureHalfFloat&&t.getExtension("OES_texture_half_float_linear")};Yt.prototype.createIndexBuffer=function(t,e){return new ct(this,t,e)},Yt.prototype.createVertexBuffer=function(t,e,r){return new ft(this,t,e,r)},Yt.prototype.createRenderbuffer=function(t,e,r){var n=this.gl,i=n.createRenderbuffer();return this.bindRenderbuffer.set(i),n.renderbufferStorage(n.RENDERBUFFER,t,e,r),this.bindRenderbuffer.set(null),i},Yt.prototype.createFramebuffer=function(t,e){return new Ut(this,t,e)},Yt.prototype.clear=function(t){var e=t.color,r=t.depth,n=this.gl,i=0;e&&(i|=n.COLOR_BUFFER_BIT,this.clearColor.set(e),this.colorMask.set([!0,!0,!0,!0])),void 0!==r&&(i|=n.DEPTH_BUFFER_BIT,this.clearDepth.set(r),this.depthMask.set(!0)),n.clear(i)},Yt.prototype.setDepthMode=function(t){t.func!==this.gl.ALWAYS||t.mask?(this.depthTest.set(!0),this.depthFunc.set(t.func),this.depthMask.set(t.mask),this.depthRange.set(t.range)):this.depthTest.set(!1)},Yt.prototype.setStencilMode=function(t){t.test.func!==this.gl.ALWAYS||t.mask?(this.stencilTest.set(!0),this.stencilMask.set(t.mask),this.stencilOp.set([t.fail,t.depthFail,t.pass]),this.stencilFunc.set({func:t.test.func,ref:t.ref,mask:t.test.mask})):this.stencilTest.set(!1)},Yt.prototype.setColorMode=function(e){t.default$10(e.blendFunction,Gt.Replace)?this.blend.set(!1):(this.blend.set(!0),this.blendFunc.set(e.blendFunction),this.blendColor.set(e.blendColor)),this.colorMask.set(e.mask)};var Wt=function(e){function r(t,r,n){var i=this;e.call(this),this.id=t,this.dispatcher=n,this.on("data",function(t){"source"===t.dataType&&"metadata"===t.sourceDataType&&(i._sourceLoaded=!0),i._sourceLoaded&&!i._paused&&"source"===t.dataType&&"content"===t.sourceDataType&&(i.reload(),i.transform&&i.update(i.transform))}),this.on("error",function(){i._sourceErrored=!0}),this._source=it(t,r,n,this),this._tiles={},this._cache=new lt(0,this._unloadTile.bind(this)),this._timers={},this._cacheTimers={},this._maxTileCacheSize=null,this._isIdRenderable=this._isIdRenderable.bind(this),this._coveredTiles={}}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.onAdd=function(t){this.map=t,this._maxTileCacheSize=t?t._maxTileCacheSize:null,this._source&&this._source.onAdd&&this._source.onAdd(t)},r.prototype.onRemove=function(t){this._source&&this._source.onRemove&&this._source.onRemove(t)},r.prototype.loaded=function(){if(this._sourceErrored)return!0;if(!this._sourceLoaded)return!1;for(var t in this._tiles){var e=this._tiles[t];if("loaded"!==e.state&&"errored"!==e.state)return!1}return!0},r.prototype.getSource=function(){return this._source},r.prototype.pause=function(){this._paused=!0},r.prototype.resume=function(){if(this._paused){var t=this._shouldReloadOnResume;this._paused=!1,this._shouldReloadOnResume=!1,t&&this.reload(),this.transform&&this.update(this.transform)}},r.prototype._loadTile=function(t,e){return this._source.loadTile(t,e)},r.prototype._unloadTile=function(t){if(this._source.unloadTile)return this._source.unloadTile(t,function(){})},r.prototype._abortTile=function(t){if(this._source.abortTile)return this._source.abortTile(t,function(){})},r.prototype.serialize=function(){return this._source.serialize()},r.prototype.prepare=function(t){for(var e in this._source.prepare&&this._source.prepare(),this._tiles)this._tiles[e].upload(t)},r.prototype.getIds=function(){var e=this;return Object.keys(this._tiles).map(Number).sort(function(r,n){var i=e._tiles[r].tileID,a=e._tiles[n].tileID,o=new t.default$1(i.canonical.x,i.canonical.y).rotate(e.transform.angle),s=new t.default$1(a.canonical.x,a.canonical.y).rotate(e.transform.angle);return i.overscaledZ-a.overscaledZ||s.y-o.y||s.x-o.x})},r.prototype.getRenderableIds=function(){return this.getIds().filter(this._isIdRenderable)},r.prototype.hasRenderableParent=function(t){var e=this.findLoadedParent(t,0,{});return!!e&&this._isIdRenderable(e.tileID.key)},r.prototype._isIdRenderable=function(t){return this._tiles[t]&&this._tiles[t].hasData()&&!this._coveredTiles[t]},r.prototype.reload=function(){if(this._paused)this._shouldReloadOnResume=!0;else for(var t in this._cache.reset(),this._tiles)this._reloadTile(t,"reloading")},r.prototype._reloadTile=function(t,e){var r=this._tiles[t];r&&("loading"!==r.state&&(r.state=e),this._loadTile(r,this._tileLoaded.bind(this,r,t,e)))},r.prototype._tileLoaded=function(e,r,n,i){if(i)return e.state="errored",void(404!==i.status?this._source.fire(new t.ErrorEvent(i,{tile:e})):this.update(this.transform));e.timeAdded=a.now(),"expired"===n&&(e.refreshedUponExpiration=!0),this._setTileReloadTimer(r,e),"raster-dem"===this.getSource().type&&e.dem&&this._backfillDEM(e),this._source.fire(new t.Event("data",{dataType:"source",tile:e,coord:e.tileID})),this.map&&(this.map.painter.tileExtentVAO.vao=null)},r.prototype._backfillDEM=function(t){for(var e=this.getRenderableIds(),r=0;r<e.length;r++){var n=e[r];if(t.neighboringTiles&&t.neighboringTiles[n]){var i=this.getTileByID(n);a(t,i),a(i,t)}}function a(t,e){t.needsHillshadePrepare=!0;var r=e.tileID.canonical.x-t.tileID.canonical.x,n=e.tileID.canonical.y-t.tileID.canonical.y,i=Math.pow(2,t.tileID.canonical.z),a=e.tileID.key;0===r&&0===n||Math.abs(n)>1||(Math.abs(r)>1&&(1===Math.abs(r+i)?r+=i:1===Math.abs(r-i)&&(r-=i)),e.dem&&t.dem&&(t.dem.backfillBorder(e.dem,r,n),t.neighboringTiles&&t.neighboringTiles[a]&&(t.neighboringTiles[a].backfilled=!0)))}},r.prototype.getTile=function(t){return this.getTileByID(t.key)},r.prototype.getTileByID=function(t){return this._tiles[t]},r.prototype.getZoom=function(t){return t.zoom+t.scaleZoom(t.tileSize/this._source.tileSize)},r.prototype._findLoadedChildren=function(t,e,r){var n=!1;for(var i in this._tiles){var a=this._tiles[i];if(!(r[i]||!a.hasData()||a.tileID.overscaledZ<=t.overscaledZ||a.tileID.overscaledZ>e)){var o=Math.pow(2,a.tileID.canonical.z-t.canonical.z);if(Math.floor(a.tileID.canonical.x/o)===t.canonical.x&&Math.floor(a.tileID.canonical.y/o)===t.canonical.y)for(r[i]=a.tileID,n=!0;a&&a.tileID.overscaledZ-1>t.overscaledZ;){var s=a.tileID.scaledTo(a.tileID.overscaledZ-1);if(!s)break;(a=this._tiles[s.key])&&a.hasData()&&(delete r[i],r[s.key]=s)}}}return n},r.prototype.findLoadedParent=function(t,e,r){for(var n=t.overscaledZ-1;n>=e;n--){var i=t.scaledTo(n);if(!i)return;var a=String(i.key),o=this._tiles[a];if(o&&o.hasData())return r[a]=i,o;if(this._cache.has(i))return r[a]=i,this._cache.get(i)}},r.prototype.updateCacheSize=function(t){var e=(Math.ceil(t.width/this._source.tileSize)+1)*(Math.ceil(t.height/this._source.tileSize)+1),r=Math.floor(5*e),n="number"==typeof this._maxTileCacheSize?Math.min(this._maxTileCacheSize,r):r;this._cache.setMaxSize(n)},r.prototype.handleWrapJump=function(t){var e=(t-(void 0===this._prevLng?t:this._prevLng))/360,r=Math.round(e);if(this._prevLng=t,r){var n={};for(var i in this._tiles){var a=this._tiles[i];a.tileID=a.tileID.unwrapTo(a.tileID.wrap+r),n[a.tileID.key]=a}for(var o in this._tiles=n,this._timers)clearTimeout(this._timers[o]),delete this._timers[o];for(var s in this._tiles){var l=this._tiles[s];this._setTileReloadTimer(s,l)}}},r.prototype.update=function(e){var n=this;if(this.transform=e,this._sourceLoaded&&!this._paused){var i;this.updateCacheSize(e),this.handleWrapJump(this.transform.center.lng),this._coveredTiles={},this.used?this._source.tileID?i=e.getVisibleUnwrappedCoordinates(this._source.tileID).map(function(e){return new t.OverscaledTileID(e.canonical.z,e.wrap,e.canonical.z,e.canonical.x,e.canonical.y)}):(i=e.coveringTiles({tileSize:this._source.tileSize,minzoom:this._source.minzoom,maxzoom:this._source.maxzoom,roundZoom:this._source.roundZoom,reparseOverscaled:this._source.reparseOverscaled}),this._source.hasTile&&(i=i.filter(function(t){return n._source.hasTile(t)}))):i=[];var o,s=(this._source.roundZoom?Math.round:Math.floor)(this.getZoom(e)),l=Math.max(s-r.maxOverzooming,this._source.minzoom),c=Math.max(s+r.maxUnderzooming,this._source.minzoom),u=this._updateRetainedTiles(i,s),f={};if(Zt(this._source.type))for(var h=Object.keys(u),p=0;p<h.length;p++){var d=h[p],g=u[d],v=n._tiles[d];if(v&&(void 0===v.fadeEndTime||v.fadeEndTime>=a.now())){n._findLoadedChildren(g,c,u)&&(u[d]=g);var m=n.findLoadedParent(g,l,f);m&&n._addTile(m.tileID)}}for(o in f)u[o]||(n._coveredTiles[o]=!0);for(o in f)u[o]=f[o];for(var y=t.keysDifference(this._tiles,u),x=0;x<y.length;x++)n._removeTile(y[x])}},r.prototype._updateRetainedTiles=function(t,e){for(var n={},i={},a=Math.max(e-r.maxOverzooming,this._source.minzoom),o=Math.max(e+r.maxUnderzooming,this._source.minzoom),s=0;s<t.length;s++){var l=t[s],c=this._addTile(l),u=!1;if(c.hasData())n[l.key]=l;else{u=c.wasRequested(),n[l.key]=l;var f=!0;if(e+1>this._source.maxzoom){var h=l.children(this._source.maxzoom)[0],p=this.getTile(h);p&&p.hasData()?n[h.key]=h:f=!1}else{this._findLoadedChildren(l,o,n);for(var d=l.children(this._source.maxzoom),g=0;g<d.length;g++)if(!n[d[g].key]){f=!1;break}}if(!f)for(var v=l.overscaledZ-1;v>=a;--v){var m=l.scaledTo(v);if(i[m.key])break;if(i[m.key]=!0,!(c=this.getTile(m))&&u&&(c=this._addTile(m)),c&&(n[m.key]=m,u=c.wasRequested(),c.hasData()))break}}}return n},r.prototype._addTile=function(e){var r=this._tiles[e.key];if(r)return r;(r=this._cache.getAndRemove(e))&&(this._setTileReloadTimer(e.key,r),r.tileID=e);var n=Boolean(r);return n||(r=new st(e,this._source.tileSize*e.overscaleFactor()),this._loadTile(r,this._tileLoaded.bind(this,r,e.key,r.state))),r?(r.uses++,this._tiles[e.key]=r,n||this._source.fire(new t.Event("dataloading",{tile:r,coord:r.tileID,dataType:"source"})),r):null},r.prototype._setTileReloadTimer=function(t,e){var r=this;t in this._timers&&(clearTimeout(this._timers[t]),delete this._timers[t]);var n=e.getExpiryTimeout();n&&(this._timers[t]=setTimeout(function(){r._reloadTile(t,"expired"),delete r._timers[t]},n))},r.prototype._removeTile=function(t){var e=this._tiles[t];e&&(e.uses--,delete this._tiles[t],this._timers[t]&&(clearTimeout(this._timers[t]),delete this._timers[t]),e.uses>0||(e.hasData()?this._cache.add(e.tileID,e,e.getExpiryTimeout()):(e.aborted=!0,this._abortTile(e),this._unloadTile(e))))},r.prototype.clearTiles=function(){for(var t in this._shouldReloadOnResume=!1,this._paused=!1,this._tiles)this._removeTile(t);this._cache.reset()},r.prototype.tilesIn=function(e,r){for(var n=[],i=this.getIds(),a=1/0,o=1/0,s=-1/0,l=-1/0,c=e[0].zoom,u=0;u<e.length;u++){var f=e[u];a=Math.min(a,f.column),o=Math.min(o,f.row),s=Math.max(s,f.column),l=Math.max(l,f.row)}for(var h=0;h<i.length;h++){var p=this._tiles[i[h]],d=p.tileID,g=Math.pow(2,this.transform.zoom-p.tileID.overscaledZ),v=r*p.queryPadding*t.default$8/p.tileSize/g,m=[Xt(d,new t.default$17(a,o,c)),Xt(d,new t.default$17(s,l,c))];if(m[0].x-v<t.default$8&&m[0].y-v<t.default$8&&m[1].x+v>=0&&m[1].y+v>=0){for(var y=[],x=0;x<e.length;x++)y.push(Xt(d,e[x]));n.push({tile:p,tileID:d,queryGeometry:[y],scale:g})}}return n},r.prototype.getVisibleCoordinates=function(){for(var t=this,e=this.getRenderableIds().map(function(e){return t._tiles[e].tileID}),r=0,n=e;r<n.length;r+=1){var i=n[r];i.posMatrix=t.transform.calculatePosMatrix(i.toUnwrapped())}return e},r.prototype.hasTransition=function(){if(this._source.hasTransition())return!0;if(Zt(this._source.type))for(var t in this._tiles){var e=this._tiles[t];if(void 0!==e.fadeEndTime&&e.fadeEndTime>=a.now())return!0}return!1},r}(t.Evented);function Xt(e,r){var n=r.zoomTo(e.canonical.z);return new t.default$1((n.column-(e.canonical.x+e.wrap*Math.pow(2,e.canonical.z)))*t.default$8,(n.row-e.canonical.y)*t.default$8)}function Zt(t){return"raster"===t||"image"===t||"video"===t}function $t(){return new t.default.Worker(En.workerUrl)}Wt.maxOverzooming=10,Wt.maxUnderzooming=3;var Jt,Kt=function(){this.active={}};function Qt(e,r){var n={};for(var i in e)"ref"!==i&&(n[i]=e[i]);return t.default$18.forEach(function(t){t in r&&(n[t]=r[t])}),n}function te(t){t=t.slice();for(var e=Object.create(null),r=0;r<t.length;r++)e[t[r].id]=t[r];for(var n=0;n<t.length;n++)"ref"in t[n]&&(t[n]=Qt(t[n],e[t[n].ref]));return t}Kt.prototype.acquire=function(t){if(!this.workers){var e=En.workerCount;for(this.workers=[];this.workers.length<e;)this.workers.push(new $t)}return this.active[t]=!0,this.workers.slice()},Kt.prototype.release=function(t){delete this.active[t],0===Object.keys(this.active).length&&(this.workers.forEach(function(t){t.terminate()}),this.workers=null)};var ee={setStyle:"setStyle",addLayer:"addLayer",removeLayer:"removeLayer",setPaintProperty:"setPaintProperty",setLayoutProperty:"setLayoutProperty",setFilter:"setFilter",addSource:"addSource",removeSource:"removeSource",setGeoJSONSourceData:"setGeoJSONSourceData",setLayerZoomRange:"setLayerZoomRange",setLayerProperty:"setLayerProperty",setCenter:"setCenter",setZoom:"setZoom",setBearing:"setBearing",setPitch:"setPitch",setSprite:"setSprite",setGlyphs:"setGlyphs",setTransition:"setTransition",setLight:"setLight"};function re(t,e,r){r.push({command:ee.addSource,args:[t,e[t]]})}function ne(t,e,r){e.push({command:ee.removeSource,args:[t]}),r[t]=!0}function ie(t,e,r,n){ne(t,r,n),re(t,e,r)}function ae(e,r,n){var i;for(i in e[n])if(e[n].hasOwnProperty(i)&&"data"!==i&&!t.default$10(e[n][i],r[n][i]))return!1;for(i in r[n])if(r[n].hasOwnProperty(i)&&"data"!==i&&!t.default$10(e[n][i],r[n][i]))return!1;return!0}function oe(e,r,n,i,a,o){var s;for(s in r=r||{},e=e||{})e.hasOwnProperty(s)&&(t.default$10(e[s],r[s])||n.push({command:o,args:[i,s,r[s],a]}));for(s in r)r.hasOwnProperty(s)&&!e.hasOwnProperty(s)&&(t.default$10(e[s],r[s])||n.push({command:o,args:[i,s,r[s],a]}))}function se(t){return t.id}function le(t,e){return t[e.id]=e,t}var ce=function(t,e,r){var n=this.boxCells=[],i=this.circleCells=[];this.xCellCount=Math.ceil(t/r),this.yCellCount=Math.ceil(e/r);for(var a=0;a<this.xCellCount*this.yCellCount;a++)n.push([]),i.push([]);this.circleKeys=[],this.boxKeys=[],this.bboxes=[],this.circles=[],this.width=t,this.height=e,this.xScale=this.xCellCount/t,this.yScale=this.yCellCount/e,this.boxUid=0,this.circleUid=0};ce.prototype.keysLength=function(){return this.boxKeys.length+this.circleKeys.length},ce.prototype.insert=function(t,e,r,n,i){this._forEachCell(e,r,n,i,this._insertBoxCell,this.boxUid++),this.boxKeys.push(t),this.bboxes.push(e),this.bboxes.push(r),this.bboxes.push(n),this.bboxes.push(i)},ce.prototype.insertCircle=function(t,e,r,n){this._forEachCell(e-n,r-n,e+n,r+n,this._insertCircleCell,this.circleUid++),this.circleKeys.push(t),this.circles.push(e),this.circles.push(r),this.circles.push(n)},ce.prototype._insertBoxCell=function(t,e,r,n,i,a){this.boxCells[i].push(a)},ce.prototype._insertCircleCell=function(t,e,r,n,i,a){this.circleCells[i].push(a)},ce.prototype._query=function(t,e,r,n,i){if(r<0||t>this.width||n<0||e>this.height)return!i&&[];var a=[];if(t<=0&&e<=0&&this.width<=r&&this.height<=n){if(i)return!0;for(var o=0;o<this.boxKeys.length;o++)a.push({key:this.boxKeys[o],x1:this.bboxes[4*o],y1:this.bboxes[4*o+1],x2:this.bboxes[4*o+2],y2:this.bboxes[4*o+3]});for(var s=0;s<this.circleKeys.length;s++){var l=this.circles[3*s],c=this.circles[3*s+1],u=this.circles[3*s+2];a.push({key:this.circleKeys[s],x1:l-u,y1:c-u,x2:l+u,y2:c+u})}}else{var f={hitTest:i,seenUids:{box:{},circle:{}}};this._forEachCell(t,e,r,n,this._queryCell,a,f)}return i?a.length>0:a},ce.prototype._queryCircle=function(t,e,r,n){var i=t-r,a=t+r,o=e-r,s=e+r;if(a<0||i>this.width||s<0||o>this.height)return!n&&[];var l=[],c={hitTest:n,circle:{x:t,y:e,radius:r},seenUids:{box:{},circle:{}}};return this._forEachCell(i,o,a,s,this._queryCellCircle,l,c),n?l.length>0:l},ce.prototype.query=function(t,e,r,n){return this._query(t,e,r,n,!1)},ce.prototype.hitTest=function(t,e,r,n){return this._query(t,e,r,n,!0)},ce.prototype.hitTestCircle=function(t,e,r){return this._queryCircle(t,e,r,!0)},ce.prototype._queryCell=function(t,e,r,n,i,a,o){var s=o.seenUids,l=this.boxCells[i];if(null!==l)for(var c=this.bboxes,u=0,f=l;u<f.length;u+=1){var h=f[u];if(!s.box[h]){s.box[h]=!0;var p=4*h;if(t<=c[p+2]&&e<=c[p+3]&&r>=c[p+0]&&n>=c[p+1]){if(o.hitTest)return a.push(!0),!0;a.push({key:this.boxKeys[h],x1:c[p],y1:c[p+1],x2:c[p+2],y2:c[p+3]})}}}var d=this.circleCells[i];if(null!==d)for(var g=this.circles,v=0,m=d;v<m.length;v+=1){var y=m[v];if(!s.circle[y]){s.circle[y]=!0;var x=3*y;if(this._circleAndRectCollide(g[x],g[x+1],g[x+2],t,e,r,n)){if(o.hitTest)return a.push(!0),!0;var b=g[x],_=g[x+1],w=g[x+2];a.push({key:this.circleKeys[y],x1:b-w,y1:_-w,x2:b+w,y2:_+w})}}}},ce.prototype._queryCellCircle=function(t,e,r,n,i,a,o){var s=o.circle,l=o.seenUids,c=this.boxCells[i];if(null!==c)for(var u=this.bboxes,f=0,h=c;f<h.length;f+=1){var p=h[f];if(!l.box[p]){l.box[p]=!0;var d=4*p;if(this._circleAndRectCollide(s.x,s.y,s.radius,u[d+0],u[d+1],u[d+2],u[d+3]))return a.push(!0),!0}}var g=this.circleCells[i];if(null!==g)for(var v=this.circles,m=0,y=g;m<y.length;m+=1){var x=y[m];if(!l.circle[x]){l.circle[x]=!0;var b=3*x;if(this._circlesCollide(v[b],v[b+1],v[b+2],s.x,s.y,s.radius))return a.push(!0),!0}}},ce.prototype._forEachCell=function(t,e,r,n,i,a,o){for(var s=this._convertToXCellCoord(t),l=this._convertToYCellCoord(e),c=this._convertToXCellCoord(r),u=this._convertToYCellCoord(n),f=s;f<=c;f++)for(var h=l;h<=u;h++){var p=this.xCellCount*h+f;if(i.call(this,t,e,r,n,p,a,o))return}},ce.prototype._convertToXCellCoord=function(t){return Math.max(0,Math.min(this.xCellCount-1,Math.floor(t*this.xScale)))},ce.prototype._convertToYCellCoord=function(t){return Math.max(0,Math.min(this.yCellCount-1,Math.floor(t*this.yScale)))},ce.prototype._circlesCollide=function(t,e,r,n,i,a){var o=n-t,s=i-e,l=r+a;return l*l>o*o+s*s},ce.prototype._circleAndRectCollide=function(t,e,r,n,i,a,o){var s=(a-n)/2,l=Math.abs(t-(n+s));if(l>s+r)return!1;var c=(o-i)/2,u=Math.abs(e-(i+c));if(u>c+r)return!1;if(l<=s||u<=c)return!0;var f=l-s,h=u-c;return f*f+h*h<=r*r};var ue=t.default$19.layout;function fe(e,r,n,i,a){var o=t.mat4.identity(new Float32Array(16));return r?(t.mat4.identity(o),t.mat4.scale(o,o,[1/a,1/a,1]),n||t.mat4.rotateZ(o,o,i.angle)):(t.mat4.scale(o,o,[i.width/2,-i.height/2,1]),t.mat4.translate(o,o,[1,-1,0]),t.mat4.multiply(o,o,e)),o}function he(e,r,n,i,a){var o=t.mat4.identity(new Float32Array(16));return r?(t.mat4.multiply(o,o,e),t.mat4.scale(o,o,[a,a,1]),n||t.mat4.rotateZ(o,o,-i.angle)):(t.mat4.scale(o,o,[1,-1,1]),t.mat4.translate(o,o,[-1,-1,0]),t.mat4.scale(o,o,[2/i.width,2/i.height,1])),o}function pe(e,r){var n=[e.x,e.y,0,1];ke(n,n,r);var i=n[3];return{point:new t.default$1(n[0]/i,n[1]/i),signedDistanceFromCamera:i}}function de(t,e){var r=t[0]/t[3],n=t[1]/t[3];return r>=-e[0]&&r<=e[0]&&n>=-e[1]&&n<=e[1]}function ge(e,r,n,i,a,o,s,l){var c=i?e.textSizeData:e.iconSizeData,u=t.evaluateSizeForZoom(c,n.transform.zoom,ue.properties[i?"text-size":"icon-size"]),f=[256/n.width*2+1,256/n.height*2+1],h=i?e.text.dynamicLayoutVertexArray:e.icon.dynamicLayoutVertexArray;h.clear();for(var p=e.lineVertexArray,d=i?e.text.placedSymbolArray:e.icon.placedSymbolArray,g=n.transform.width/n.transform.height,v=!1,m=0;m<d.length;m++){var y=d.get(m);if(y.hidden||y.writingMode===t.WritingMode.vertical&&!v)we(y.numGlyphs,h);else{v=!1;var x=[y.anchorX,y.anchorY,0,1];if(t.vec4.transformMat4(x,x,r),de(x,f)){var b=.5+x[3]/n.transform.cameraToCenterDistance*.5,_=t.evaluateSizeForFeature(c,u,y),w=s?_*b:_/b,k=new t.default$1(y.anchorX,y.anchorY),T=pe(k,a).point,A={},M=ye(y,w,!1,l,r,a,o,e.glyphOffsetArray,p,h,T,k,A,g);v=M.useVertical,(M.notEnoughRoom||v||M.needsFlipping&&ye(y,w,!0,l,r,a,o,e.glyphOffsetArray,p,h,T,k,A,g).notEnoughRoom)&&we(y.numGlyphs,h)}else we(y.numGlyphs,h)}}i?e.text.dynamicLayoutVertexBuffer.updateData(h):e.icon.dynamicLayoutVertexBuffer.updateData(h)}function ve(t,e,r,n,i,a,o,s,l,c,u,f){var h=s.glyphStartIndex+s.numGlyphs,p=s.lineStartIndex,d=s.lineStartIndex+s.lineLength,g=e.getoffsetX(s.glyphStartIndex),v=e.getoffsetX(h-1),m=be(t*g,r,n,i,a,o,s.segment,p,d,l,c,u,f);if(!m)return null;var y=be(t*v,r,n,i,a,o,s.segment,p,d,l,c,u,f);return y?{first:m,last:y}:null}function me(e,r,n,i){return e===t.WritingMode.horizontal&&Math.abs(n.y-r.y)>Math.abs(n.x-r.x)*i?{useVertical:!0}:(e===t.WritingMode.vertical?r.y<n.y:r.x>n.x)?{needsFlipping:!0}:null}function ye(e,r,n,i,a,o,s,l,c,u,f,h,p,d){var g,v=r/24,m=e.lineOffsetX*r,y=e.lineOffsetY*r;if(e.numGlyphs>1){var x=e.glyphStartIndex+e.numGlyphs,b=e.lineStartIndex,_=e.lineStartIndex+e.lineLength,w=ve(v,l,m,y,n,f,h,e,c,o,p,!1);if(!w)return{notEnoughRoom:!0};var k=pe(w.first.point,s).point,T=pe(w.last.point,s).point;if(i&&!n){var A=me(e.writingMode,k,T,d);if(A)return A}g=[w.first];for(var M=e.glyphStartIndex+1;M<x-1;M++)g.push(be(v*l.getoffsetX(M),m,y,n,f,h,e.segment,b,_,c,o,p,!1));g.push(w.last)}else{if(i&&!n){var S=pe(h,a).point,E=e.lineStartIndex+e.segment+1,C=new t.default$1(c.getx(E),c.gety(E)),L=pe(C,a),z=L.signedDistanceFromCamera>0?L.point:xe(h,C,S,1,a),O=me(e.writingMode,S,z,d);if(O)return O}var I=be(v*l.getoffsetX(e.glyphStartIndex),m,y,n,f,h,e.segment,e.lineStartIndex,e.lineStartIndex+e.lineLength,c,o,p,!1);if(!I)return{notEnoughRoom:!0};g=[I]}for(var D=0,P=g;D<P.length;D+=1){var R=P[D];t.addDynamicAttributes(u,R.point,R.angle)}return{}}function xe(t,e,r,n,i){var a=pe(t.add(t.sub(e)._unit()),i).point,o=r.sub(a);return r.add(o._mult(n/o.mag()))}function be(e,r,n,i,a,o,s,l,c,u,f,h,p){var d=i?e-r:e+r,g=d>0?1:-1,v=0;i&&(g*=-1,v=Math.PI),g<0&&(v+=Math.PI);for(var m=g>0?l+s:l+s+1,y=m,x=a,b=a,_=0,w=0,k=Math.abs(d);_+w<=k;){if((m+=g)<l||m>=c)return null;if(b=x,void 0===(x=h[m])){var T=new t.default$1(u.getx(m),u.gety(m)),A=pe(T,f);if(A.signedDistanceFromCamera>0)x=h[m]=A.point;else{var M=m-g;x=xe(0===_?o:new t.default$1(u.getx(M),u.gety(M)),T,b,k-_+1,f)}}_+=w,w=b.dist(x)}var S=(k-_)/w,E=x.sub(b),C=E.mult(S)._add(b);return C._add(E._unit()._perp()._mult(n*g)),{point:C,angle:v+Math.atan2(x.y-b.y,x.x-b.x),tileDistance:p?{prevTileDistance:m-g===y?0:u.gettileUnitDistanceFromAnchor(m-g),lastSegmentViewportDistance:k-_}:null}}var _e=new Float32Array([-1/0,-1/0,0,-1/0,-1/0,0,-1/0,-1/0,0,-1/0,-1/0,0]);function we(t,e){for(var r=0;r<t;r++){var n=e.length;e.resize(n+4),e.float32.set(_e,3*n)}}function ke(t,e,r){var n=e[0],i=e[1];return t[0]=r[0]*n+r[4]*i+r[12],t[1]=r[1]*n+r[5]*i+r[13],t[3]=r[3]*n+r[7]*i+r[15],t}t.default$20.mat4;var Te=function(t,e,r){void 0===e&&(e=new ce(t.width+200,t.height+200,25)),void 0===r&&(r=new ce(t.width+200,t.height+200,25)),this.transform=t,this.grid=e,this.ignoredGrid=r,this.pitchfactor=Math.cos(t._pitch)*t.cameraToCenterDistance,this.screenRightBoundary=t.width+100,this.screenBottomBoundary=t.height+100};function Ae(t,e,r){t[e+4]=r?1:0}function Me(e,r,n){return r*(t.default$8/(e.tileSize*Math.pow(2,n-e.tileID.overscaledZ)))}Te.prototype.placeCollisionBox=function(t,e,r,n){var i=this.projectAndGetPerspectiveRatio(n,t.anchorPointX,t.anchorPointY),a=r*i.perspectiveRatio,o=t.x1*a+i.point.x,s=t.y1*a+i.point.y,l=t.x2*a+i.point.x,c=t.y2*a+i.point.y;return!e&&this.grid.hitTest(o,s,l,c)?{box:[],offscreen:!1}:{box:[o,s,l,c],offscreen:this.isOffscreen(o,s,l,c)}},Te.prototype.approximateTileDistance=function(t,e,r,n,i){var a=i?1:n/this.pitchfactor,o=t.lastSegmentViewportDistance*r;return t.prevTileDistance+o+(a-1)*o*Math.abs(Math.sin(e))},Te.prototype.placeCollisionCircles=function(e,r,n,i,a,o,s,l,c,u,f,h,p){var d=[],g=this.projectAnchor(u,o.anchorX,o.anchorY),v=c/24,m=o.lineOffsetX*c,y=o.lineOffsetY*c,x=new t.default$1(o.anchorX,o.anchorY),b=ve(v,l,m,y,!1,pe(x,f).point,x,o,s,f,{},!0),_=!1,w=!0,k=g.perspectiveRatio*i,T=1/(i*n),A=0,M=0;b&&(A=this.approximateTileDistance(b.first.tileDistance,b.first.angle,T,g.cameraDistance,p),M=this.approximateTileDistance(b.last.tileDistance,b.last.angle,T,g.cameraDistance,p));for(var S=0;S<e.length;S+=5){var E=e[S],C=e[S+1],L=e[S+2],z=e[S+3];if(!b||z<-A||z>M)Ae(e,S,!1);else{var O=this.projectPoint(u,E,C),I=L*k;if(d.length>0){var D=O.x-d[d.length-4],P=O.y-d[d.length-3];if(I*I*2>D*D+P*P&&S+8<e.length){var R=e[S+8];if(R>-A&&R<M){Ae(e,S,!1);continue}}}var F=S/5;if(d.push(O.x,O.y,I,F),Ae(e,S,!0),w=w&&this.isOffscreen(O.x-I,O.y-I,O.x+I,O.y+I),!r&&this.grid.hitTestCircle(O.x,O.y,I)){if(!h)return{circles:[],offscreen:!1};_=!0}}}return{circles:_?[]:d,offscreen:w}},Te.prototype.queryRenderedSymbols=function(e){if(0===e.length||0===this.grid.keysLength()&&0===this.ignoredGrid.keysLength())return{};for(var r=[],n=1/0,i=1/0,a=-1/0,o=-1/0,s=0,l=e;s<l.length;s+=1){var c=l[s],u=new t.default$1(c.x+100,c.y+100);n=Math.min(n,u.x),i=Math.min(i,u.y),a=Math.max(a,u.x),o=Math.max(o,u.y),r.push(u)}for(var f={},h={},p=0,d=this.grid.query(n,i,a,o).concat(this.ignoredGrid.query(n,i,a,o));p<d.length;p+=1){var g=d[p],v=g.key;if(void 0===f[v.bucketInstanceId]&&(f[v.bucketInstanceId]={}),!f[v.bucketInstanceId][v.featureIndex]){var m=[new t.default$1(g.x1,g.y1),new t.default$1(g.x2,g.y1),new t.default$1(g.x2,g.y2),new t.default$1(g.x1,g.y2)];t.polygonIntersectsPolygon(r,m)&&(f[v.bucketInstanceId][v.featureIndex]=!0,void 0===h[v.bucketInstanceId]&&(h[v.bucketInstanceId]=[]),h[v.bucketInstanceId].push(v.featureIndex))}}return h},Te.prototype.insertCollisionBox=function(t,e,r,n){var i={bucketInstanceId:r,featureIndex:n};(e?this.ignoredGrid:this.grid).insert(i,t[0],t[1],t[2],t[3])},Te.prototype.insertCollisionCircles=function(t,e,r,n){for(var i=e?this.ignoredGrid:this.grid,a={bucketInstanceId:r,featureIndex:n},o=0;o<t.length;o+=4)i.insertCircle(a,t[o],t[o+1],t[o+2])},Te.prototype.projectAnchor=function(t,e,r){var n=[e,r,0,1];return ke(n,n,t),{perspectiveRatio:.5+this.transform.cameraToCenterDistance/n[3]*.5,cameraDistance:n[3]}},Te.prototype.projectPoint=function(e,r,n){var i=[r,n,0,1];return ke(i,i,e),new t.default$1((i[0]/i[3]+1)/2*this.transform.width+100,(-i[1]/i[3]+1)/2*this.transform.height+100)},Te.prototype.projectAndGetPerspectiveRatio=function(e,r,n){var i=[r,n,0,1];return ke(i,i,e),{point:new t.default$1((i[0]/i[3]+1)/2*this.transform.width+100,(-i[1]/i[3]+1)/2*this.transform.height+100),perspectiveRatio:.5+this.transform.cameraToCenterDistance/i[3]*.5}},Te.prototype.isOffscreen=function(t,e,r,n){return r<100||t>=this.screenRightBoundary||n<100||e>this.screenBottomBoundary};var Se=t.default$19.layout,Ee=function(t,e,r,n){this.opacity=t?Math.max(0,Math.min(1,t.opacity+(t.placed?e:-e))):n&&r?1:0,this.placed=r};Ee.prototype.isHidden=function(){return 0===this.opacity&&!this.placed};var Ce=function(t,e,r,n,i){this.text=new Ee(t?t.text:null,e,r,i),this.icon=new Ee(t?t.icon:null,e,n,i)};Ce.prototype.isHidden=function(){return this.text.isHidden()&&this.icon.isHidden()};var Le=function(t,e,r){this.text=t,this.icon=e,this.skipFade=r},ze=function(t,e){this.transform=t.clone(),this.collisionIndex=new Te(this.transform),this.placements={},this.opacities={},this.stale=!1,this.fadeDuration=e,this.retainedQueryData={}};function Oe(t,e,r){t.emplaceBack(e?1:0,r?1:0),t.emplaceBack(e?1:0,r?1:0),t.emplaceBack(e?1:0,r?1:0),t.emplaceBack(e?1:0,r?1:0)}ze.prototype.placeLayerTile=function(e,r,n,i){var a=r.getBucket(e),o=r.latestFeatureIndex;if(a&&o&&e.id===a.layerIds[0]){var s=r.collisionBoxArray,l=a.layers[0].layout,c=Math.pow(2,this.transform.zoom-r.tileID.overscaledZ),u=r.tileSize/t.default$8,f=this.transform.calculatePosMatrix(r.tileID.toUnwrapped()),h=fe(f,"map"===l.get("text-pitch-alignment"),"map"===l.get("text-rotation-alignment"),this.transform,Me(r,1,this.transform.zoom)),p=fe(f,"map"===l.get("icon-pitch-alignment"),"map"===l.get("icon-rotation-alignment"),this.transform,Me(r,1,this.transform.zoom));this.retainedQueryData[a.bucketInstanceId]=new function(t,e,r,n,i){this.bucketInstanceId=t,this.featureIndex=e,this.sourceLayerIndex=r,this.bucketIndex=n,this.tileID=i}(a.bucketInstanceId,o,a.sourceLayerIndex,a.index,r.tileID),this.placeLayerBucket(a,f,h,p,c,u,n,i,s)}},ze.prototype.placeLayerBucket=function(e,r,n,i,a,o,s,l,c){for(var u=e.layers[0].layout,f=t.evaluateSizeForZoom(e.textSizeData,this.transform.zoom,Se.properties["text-size"]),h=!e.hasTextData()||u.get("text-optional"),p=!e.hasIconData()||u.get("icon-optional"),d=0,g=e.symbolInstances;d<g.length;d+=1){var v=g[d];if(!l[v.crossTileID]){var m=void 0!==v.feature.text,y=void 0!==v.feature.icon,x=!0,b=null,_=null,w=null,k=0,T=0;v.collisionArrays||(v.collisionArrays=e.deserializeCollisionBoxes(c,v.textBoxStartIndex,v.textBoxEndIndex,v.iconBoxStartIndex,v.iconBoxEndIndex)),v.collisionArrays.textFeatureIndex&&(k=v.collisionArrays.textFeatureIndex),v.collisionArrays.textBox&&(m=(b=this.collisionIndex.placeCollisionBox(v.collisionArrays.textBox,u.get("text-allow-overlap"),o,r)).box.length>0,x=x&&b.offscreen);var A=v.collisionArrays.textCircles;if(A){var M=e.text.placedSymbolArray.get(v.placedTextSymbolIndices[0]),S=t.evaluateSizeForFeature(e.textSizeData,f,M);_=this.collisionIndex.placeCollisionCircles(A,u.get("text-allow-overlap"),a,o,v.key,M,e.lineVertexArray,e.glyphOffsetArray,S,r,n,s,"map"===u.get("text-pitch-alignment")),m=u.get("text-allow-overlap")||_.circles.length>0,x=x&&_.offscreen}v.collisionArrays.iconFeatureIndex&&(T=v.collisionArrays.iconFeatureIndex),v.collisionArrays.iconBox&&(y=(w=this.collisionIndex.placeCollisionBox(v.collisionArrays.iconBox,u.get("icon-allow-overlap"),o,r)).box.length>0,x=x&&w.offscreen),h||p?p?h||(y=y&&m):m=y&&m:y=m=y&&m,m&&b&&this.collisionIndex.insertCollisionBox(b.box,u.get("text-ignore-placement"),e.bucketInstanceId,k),y&&w&&this.collisionIndex.insertCollisionBox(w.box,u.get("icon-ignore-placement"),e.bucketInstanceId,T),m&&_&&this.collisionIndex.insertCollisionCircles(_.circles,u.get("text-ignore-placement"),e.bucketInstanceId,k),this.placements[v.crossTileID]=new Le(m,y,x||e.justReloaded),l[v.crossTileID]=!0}}e.justReloaded=!1},ze.prototype.commit=function(t,e){this.commitTime=e;var r=!1,n=t&&0!==this.fadeDuration?(this.commitTime-t.commitTime)/this.fadeDuration:1,i=t?t.opacities:{};for(var a in this.placements){var o=this.placements[a],s=i[a];s?(this.opacities[a]=new Ce(s,n,o.text,o.icon),r=r||o.text!==s.text.placed||o.icon!==s.icon.placed):(this.opacities[a]=new Ce(null,n,o.text,o.icon,o.skipFade),r=r||o.text||o.icon)}for(var l in i){var c=i[l];if(!this.opacities[l]){var u=new Ce(c,n,!1,!1);u.isHidden()||(this.opacities[l]=u,r=r||c.text.placed||c.icon.placed)}}r?this.lastPlacementChangeTime=e:"number"!=typeof this.lastPlacementChangeTime&&(this.lastPlacementChangeTime=t?t.lastPlacementChangeTime:e)},ze.prototype.updateLayerOpacities=function(t,e){for(var r={},n=0,i=e;n<i.length;n+=1){var a=i[n],o=a.getBucket(t);o&&a.latestFeatureIndex&&t.id===o.layerIds[0]&&this.updateBucketOpacities(o,r,a.collisionBoxArray)}},ze.prototype.updateBucketOpacities=function(t,e,r){t.hasTextData()&&t.text.opacityVertexArray.clear(),t.hasIconData()&&t.icon.opacityVertexArray.clear(),t.hasCollisionBoxData()&&t.collisionBox.collisionVertexArray.clear(),t.hasCollisionCircleData()&&t.collisionCircle.collisionVertexArray.clear();for(var n=t.layers[0].layout,i=new Ce(null,0,!1,!1,!0),a=new Ce(null,0,n.get("text-allow-overlap"),n.get("icon-allow-overlap"),!0),o=0;o<t.symbolInstances.length;o++){var s=t.symbolInstances[o],l=e[s.crossTileID],c=this.opacities[s.crossTileID];l?c=i:c||(c=a,this.opacities[s.crossTileID]=c),e[s.crossTileID]=!0;var u=s.numGlyphVertices>0||s.numVerticalGlyphVertices>0,f=s.numIconVertices>0;if(u){for(var h=je(c.text),p=(s.numGlyphVertices+s.numVerticalGlyphVertices)/4,d=0;d<p;d++)t.text.opacityVertexArray.emplaceBack(h);for(var g=0,v=s.placedTextSymbolIndices;g<v.length;g+=1){var m=v[g];t.text.placedSymbolArray.get(m).hidden=c.text.isHidden()}}if(f){for(var y=je(c.icon),x=0;x<s.numIconVertices/4;x++)t.icon.opacityVertexArray.emplaceBack(y);t.icon.placedSymbolArray.get(o).hidden=c.icon.isHidden()}s.collisionArrays||(s.collisionArrays=t.deserializeCollisionBoxes(r,s.textBoxStartIndex,s.textBoxEndIndex,s.iconBoxStartIndex,s.iconBoxEndIndex));var b=s.collisionArrays;if(b){b.textBox&&t.hasCollisionBoxData()&&Oe(t.collisionBox.collisionVertexArray,c.text.placed,!1),b.iconBox&&t.hasCollisionBoxData()&&Oe(t.collisionBox.collisionVertexArray,c.icon.placed,!1);var _=b.textCircles;if(_&&t.hasCollisionCircleData())for(var w=0;w<_.length;w+=5){var k=l||0===_[w+4];Oe(t.collisionCircle.collisionVertexArray,c.text.placed,k)}}}t.sortFeatures(this.transform.angle),this.retainedQueryData[t.bucketInstanceId]&&(this.retainedQueryData[t.bucketInstanceId].featureSortOrder=t.featureSortOrder),t.hasTextData()&&t.text.opacityVertexBuffer&&t.text.opacityVertexBuffer.updateData(t.text.opacityVertexArray),t.hasIconData()&&t.icon.opacityVertexBuffer&&t.icon.opacityVertexBuffer.updateData(t.icon.opacityVertexArray),t.hasCollisionBoxData()&&t.collisionBox.collisionVertexBuffer&&t.collisionBox.collisionVertexBuffer.updateData(t.collisionBox.collisionVertexArray),t.hasCollisionCircleData()&&t.collisionCircle.collisionVertexBuffer&&t.collisionCircle.collisionVertexBuffer.updateData(t.collisionCircle.collisionVertexArray)},ze.prototype.symbolFadeChange=function(t){return 0===this.fadeDuration?1:(t-this.commitTime)/this.fadeDuration},ze.prototype.hasTransitions=function(t){return this.stale||t-this.lastPlacementChangeTime<this.fadeDuration},ze.prototype.stillRecent=function(t){return"undefined"!==this.commitTime&&this.commitTime+this.fadeDuration>t},ze.prototype.setStale=function(){this.stale=!0};var Ie=Math.pow(2,25),De=Math.pow(2,24),Pe=Math.pow(2,17),Re=Math.pow(2,16),Fe=Math.pow(2,9),Be=Math.pow(2,8),Ne=Math.pow(2,1);function je(t){if(0===t.opacity&&!t.placed)return 0;if(1===t.opacity&&t.placed)return 4294967295;var e=t.placed?1:0,r=Math.floor(127*t.opacity);return r*Ie+e*De+r*Pe+e*Re+r*Fe+e*Be+r*Ne+e}var Ve=function(){this._currentTileIndex=0,this._seenCrossTileIDs={}};Ve.prototype.continuePlacement=function(t,e,r,n,i){for(;this._currentTileIndex<t.length;){var a=t[this._currentTileIndex];if(e.placeLayerTile(n,a,r,this._seenCrossTileIDs),this._currentTileIndex++,i())return!0}};var Ue=function(t,e,r,n,i){this.placement=new ze(t,i),this._currentPlacementIndex=e.length-1,this._forceFullPlacement=r,this._showCollisionBoxes=n,this._done=!1};Ue.prototype.isDone=function(){return this._done},Ue.prototype.continuePlacement=function(t,e,r){for(var n=this,i=a.now(),o=function(){var t=a.now()-i;return!n._forceFullPlacement&&t>2};this._currentPlacementIndex>=0;){var s=e[t[n._currentPlacementIndex]],l=n.placement.collisionIndex.transform.zoom;if("symbol"===s.type&&(!s.minzoom||s.minzoom<=l)&&(!s.maxzoom||s.maxzoom>l)){if(n._inProgressLayer||(n._inProgressLayer=new Ve),n._inProgressLayer.continuePlacement(r[s.source],n.placement,n._showCollisionBoxes,s,o))return;delete n._inProgressLayer}n._currentPlacementIndex--}this._done=!0},Ue.prototype.commit=function(t,e){return this.placement.commit(t,e),this.placement};var He=512/t.default$8/2,qe=function(t,e,r){this.tileID=t,this.indexedSymbolInstances={},this.bucketInstanceId=r;for(var n=0,i=e;n<i.length;n+=1){var a=i[n],o=a.key;this.indexedSymbolInstances[o]||(this.indexedSymbolInstances[o]=[]),this.indexedSymbolInstances[o].push({crossTileID:a.crossTileID,coord:this.getScaledCoordinates(a,t)})}};qe.prototype.getScaledCoordinates=function(e,r){var n=r.canonical.z-this.tileID.canonical.z,i=He/Math.pow(2,n),a=e.anchor;return{x:Math.floor((r.canonical.x*t.default$8+a.x)*i),y:Math.floor((r.canonical.y*t.default$8+a.y)*i)}},qe.prototype.findMatches=function(t,e,r){for(var n=this.tileID.canonical.z<e.canonical.z?1:Math.pow(2,this.tileID.canonical.z-e.canonical.z),i=0,a=t;i<a.length;i+=1){var o=a[i];if(!o.crossTileID){var s=this.indexedSymbolInstances[o.key];if(s)for(var l=this.getScaledCoordinates(o,e),c=0,u=s;c<u.length;c+=1){var f=u[c];if(Math.abs(f.coord.x-l.x)<=n&&Math.abs(f.coord.y-l.y)<=n&&!r[f.crossTileID]){r[f.crossTileID]=!0,o.crossTileID=f.crossTileID;break}}}}};var Ge=function(){this.maxCrossTileID=0};Ge.prototype.generate=function(){return++this.maxCrossTileID};var Ye=function(){this.indexes={},this.usedCrossTileIDs={},this.lng=0};Ye.prototype.handleWrapJump=function(t){var e=Math.round((t-this.lng)/360);if(0!==e)for(var r in this.indexes){var n=this.indexes[r],i={};for(var a in n){var o=n[a];o.tileID=o.tileID.unwrapTo(o.tileID.wrap+e),i[o.tileID.key]=o}this.indexes[r]=i}this.lng=t},Ye.prototype.addBucket=function(t,e,r){if(this.indexes[t.overscaledZ]&&this.indexes[t.overscaledZ][t.key]){if(this.indexes[t.overscaledZ][t.key].bucketInstanceId===e.bucketInstanceId)return!1;this.removeBucketCrossTileIDs(t.overscaledZ,this.indexes[t.overscaledZ][t.key])}for(var n=0,i=e.symbolInstances;n<i.length;n+=1)i[n].crossTileID=0;this.usedCrossTileIDs[t.overscaledZ]||(this.usedCrossTileIDs[t.overscaledZ]={});var a=this.usedCrossTileIDs[t.overscaledZ];for(var o in this.indexes){var s=this.indexes[o];if(Number(o)>t.overscaledZ)for(var l in s){var c=s[l];c.tileID.isChildOf(t)&&c.findMatches(e.symbolInstances,t,a)}else{var u=s[t.scaledTo(Number(o)).key];u&&u.findMatches(e.symbolInstances,t,a)}}for(var f=0,h=e.symbolInstances;f<h.length;f+=1){var p=h[f];p.crossTileID||(p.crossTileID=r.generate(),a[p.crossTileID]=!0)}return void 0===this.indexes[t.overscaledZ]&&(this.indexes[t.overscaledZ]={}),this.indexes[t.overscaledZ][t.key]=new qe(t,e.symbolInstances,e.bucketInstanceId),!0},Ye.prototype.removeBucketCrossTileIDs=function(t,e){for(var r in e.indexedSymbolInstances)for(var n=0,i=e.indexedSymbolInstances[r];n<i.length;n+=1){var a=i[n];delete this.usedCrossTileIDs[t][a.crossTileID]}},Ye.prototype.removeStaleBuckets=function(t){var e=!1;for(var r in this.indexes){var n=this.indexes[r];for(var i in n)t[n[i].bucketInstanceId]||(this.removeBucketCrossTileIDs(r,n[i]),delete n[i],e=!0)}return e};var We=function(){this.layerIndexes={},this.crossTileIDs=new Ge,this.maxBucketInstanceId=0,this.bucketsInCurrentPlacement={}};We.prototype.addLayer=function(t,e,r){var n=this.layerIndexes[t.id];void 0===n&&(n=this.layerIndexes[t.id]=new Ye);var i=!1,a={};n.handleWrapJump(r);for(var o=0,s=e;o<s.length;o+=1){var l=s[o],c=l.getBucket(t);c&&t.id===c.layerIds[0]&&(c.bucketInstanceId||(c.bucketInstanceId=++this.maxBucketInstanceId),n.addBucket(l.tileID,c,this.crossTileIDs)&&(i=!0),a[c.bucketInstanceId]=!0)}return n.removeStaleBuckets(a)&&(i=!0),i},We.prototype.pruneUnusedLayers=function(t){var e={};for(var r in t.forEach(function(t){e[t]=!0}),this.layerIndexes)e[r]||delete this.layerIndexes[r]};var Xe=function(e,r){return t.emitValidationErrors(e,r&&r.filter(function(t){return"source.canvas"!==t.identifier}))},Ze=t.pick(ee,["addLayer","removeLayer","setPaintProperty","setLayoutProperty","setFilter","addSource","removeSource","setLayerZoomRange","setLight","setTransition","setGeoJSONSourceData"]),$e=t.pick(ee,["setCenter","setZoom","setBearing","setPitch"]),Je=function(e){function r(n,i){var a=this;void 0===i&&(i={}),e.call(this),this.map=n,this.dispatcher=new H((Jt||(Jt=new Kt),Jt),this),this.imageManager=new O,this.glyphManager=new B(n._transformRequest,i.localIdeographFontFamily),this.lineAtlas=new U(256,512),this.crossTileSymbolIndex=new We,this._layers={},this._order=[],this.sourceCaches={},this.zoomHistory=new t.default$23,this._loaded=!1,this._resetUpdates();var o=this;this._rtlTextPluginCallback=r.registerForPluginAvailability(function(t){for(var e in o.dispatcher.broadcast("loadRTLTextPlugin",t.pluginURL,t.completionCallback),o.sourceCaches)o.sourceCaches[e].reload()}),this.on("data",function(t){if("source"===t.dataType&&"metadata"===t.sourceDataType){var e=a.sourceCaches[t.sourceId];if(e){var r=e.getSource();if(r&&r.vectorLayerIds)for(var n in a._layers){var i=a._layers[n];i.source===r.id&&a._validateLayer(i)}}}})}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.loadURL=function(e,r){var n=this;void 0===r&&(r={}),this.fire(new t.Event("dataloading",{dataType:"style"}));var i="boolean"==typeof r.validate?r.validate:!x(e);e=function(t,e){if(!x(t))return t;var r=A(t);return r.path="/styles/v1"+r.path,y(r,e)}(e,r.accessToken);var a=this.map._transformRequest(e,t.ResourceType.Style);t.getJSON(a,function(e,r){e?n.fire(new t.ErrorEvent(e)):r&&n._load(r,i)})},r.prototype.loadJSON=function(e,r){var n=this;void 0===r&&(r={}),this.fire(new t.Event("dataloading",{dataType:"style"})),a.frame(function(){n._load(e,!1!==r.validate)})},r.prototype._load=function(e,r){var n=this;if(!r||!Xe(this,t.validateStyle(e))){for(var i in this._loaded=!0,this.stylesheet=e,e.sources)n.addSource(i,e.sources[i],{validate:!1});e.sprite?function(e,r,n){var i,o,s,l=a.devicePixelRatio>1?"@2x":"";function c(){if(s)n(s);else if(i&&o){var e=a.getImageData(o),r={};for(var l in i){var c=i[l],u=c.width,f=c.height,h=c.x,p=c.y,d=c.sdf,g=c.pixelRatio,v=new t.RGBAImage({width:u,height:f});t.RGBAImage.copy(e,v,{x:h,y:p},{x:0,y:0},{width:u,height:f}),r[l]={data:v,pixelRatio:g,sdf:d}}n(null,r)}}t.getJSON(r(_(e,l,".json"),t.ResourceType.SpriteJSON),function(t,e){s||(s=t,i=e,c())}),t.getImage(r(_(e,l,".png"),t.ResourceType.SpriteImage),function(t,e){s||(s=t,o=e,c())})}(e.sprite,this.map._transformRequest,function(e,r){if(e)n.fire(new t.ErrorEvent(e));else if(r)for(var i in r)n.imageManager.addImage(i,r[i]);n.imageManager.setLoaded(!0),n.fire(new t.Event("data",{dataType:"style"}))}):this.imageManager.setLoaded(!0),this.glyphManager.setURL(e.glyphs);var o=te(this.stylesheet.layers);this._order=o.map(function(t){return t.id}),this._layers={};for(var s=0,l=o;s<l.length;s+=1){var c=l[s];(c=t.default$22(c)).setEventedParent(n,{layer:{id:c.id}}),n._layers[c.id]=c}this.dispatcher.broadcast("setLayers",this._serializeLayers(this._order)),this.light=new V(this.stylesheet.light),this.fire(new t.Event("data",{dataType:"style"})),this.fire(new t.Event("style.load"))}},r.prototype._validateLayer=function(e){var r=this.sourceCaches[e.source];if(r){var n=e.sourceLayer;if(n){var i=r.getSource();("geojson"===i.type||i.vectorLayerIds&&-1===i.vectorLayerIds.indexOf(n))&&this.fire(new t.ErrorEvent(new Error('Source layer "'+n+'" does not exist on source "'+i.id+'" as specified by style layer "'+e.id+'"')))}}},r.prototype.loaded=function(){if(!this._loaded)return!1;if(Object.keys(this._updatedSources).length)return!1;for(var t in this.sourceCaches)if(!this.sourceCaches[t].loaded())return!1;return!!this.imageManager.isLoaded()},r.prototype._serializeLayers=function(t){var e=this;return t.map(function(t){return e._layers[t].serialize()})},r.prototype.hasTransitions=function(){if(this.light&&this.light.hasTransition())return!0;for(var t in this.sourceCaches)if(this.sourceCaches[t].hasTransition())return!0;for(var e in this._layers)if(this._layers[e].hasTransition())return!0;return!1},r.prototype._checkLoaded=function(){if(!this._loaded)throw new Error("Style is not done loading")},r.prototype.update=function(e){if(this._loaded){if(this._changed){var r=Object.keys(this._updatedLayers),n=Object.keys(this._removedLayers);for(var i in(r.length||n.length)&&this._updateWorkerLayers(r,n),this._updatedSources){var a=this._updatedSources[i];"reload"===a?this._reloadSource(i):"clear"===a&&this._clearSource(i)}for(var o in this._updatedPaintProps)this._layers[o].updateTransitions(e);this.light.updateTransitions(e),this._resetUpdates(),this.fire(new t.Event("data",{dataType:"style"}))}for(var s in this.sourceCaches)this.sourceCaches[s].used=!1;for(var l=0,c=this._order;l<c.length;l+=1){var u=c[l],f=this._layers[u];f.recalculate(e),!f.isHidden(e.zoom)&&f.source&&(this.sourceCaches[f.source].used=!0)}this.light.recalculate(e),this.z=e.zoom}},r.prototype._updateWorkerLayers=function(t,e){this.dispatcher.broadcast("updateLayers",{layers:this._serializeLayers(t),removedIds:e})},r.prototype._resetUpdates=function(){this._changed=!1,this._updatedLayers={},this._removedLayers={},this._updatedSources={},this._updatedPaintProps={}},r.prototype.setState=function(e){var r=this;if(this._checkLoaded(),Xe(this,t.validateStyle(e)))return!1;(e=t.clone(e)).layers=te(e.layers);var n=function(e,r){if(!e)return[{command:ee.setStyle,args:[r]}];var n=[];try{if(!t.default$10(e.version,r.version))return[{command:ee.setStyle,args:[r]}];t.default$10(e.center,r.center)||n.push({command:ee.setCenter,args:[r.center]}),t.default$10(e.zoom,r.zoom)||n.push({command:ee.setZoom,args:[r.zoom]}),t.default$10(e.bearing,r.bearing)||n.push({command:ee.setBearing,args:[r.bearing]}),t.default$10(e.pitch,r.pitch)||n.push({command:ee.setPitch,args:[r.pitch]}),t.default$10(e.sprite,r.sprite)||n.push({command:ee.setSprite,args:[r.sprite]}),t.default$10(e.glyphs,r.glyphs)||n.push({command:ee.setGlyphs,args:[r.glyphs]}),t.default$10(e.transition,r.transition)||n.push({command:ee.setTransition,args:[r.transition]}),t.default$10(e.light,r.light)||n.push({command:ee.setLight,args:[r.light]});var i={},a=[];!function(e,r,n,i){var a;for(a in r=r||{},e=e||{})e.hasOwnProperty(a)&&(r.hasOwnProperty(a)||ne(a,n,i));for(a in r)r.hasOwnProperty(a)&&(e.hasOwnProperty(a)?t.default$10(e[a],r[a])||("geojson"===e[a].type&&"geojson"===r[a].type&&ae(e,r,a)?n.push({command:ee.setGeoJSONSourceData,args:[a,r[a].data]}):ie(a,r,n,i)):re(a,r,n))}(e.sources,r.sources,a,i);var o=[];e.layers&&e.layers.forEach(function(t){i[t.source]?n.push({command:ee.removeLayer,args:[t.id]}):o.push(t)}),n=n.concat(a),function(e,r,n){r=r||[];var i,a,o,s,l,c,u,f=(e=e||[]).map(se),h=r.map(se),p=e.reduce(le,{}),d=r.reduce(le,{}),g=f.slice(),v=Object.create(null);for(i=0,a=0;i<f.length;i++)o=f[i],d.hasOwnProperty(o)?a++:(n.push({command:ee.removeLayer,args:[o]}),g.splice(g.indexOf(o,a),1));for(i=0,a=0;i<h.length;i++)o=h[h.length-1-i],g[g.length-1-i]!==o&&(p.hasOwnProperty(o)?(n.push({command:ee.removeLayer,args:[o]}),g.splice(g.lastIndexOf(o,g.length-a),1)):a++,c=g[g.length-i],n.push({command:ee.addLayer,args:[d[o],c]}),g.splice(g.length-i,0,o),v[o]=!0);for(i=0;i<h.length;i++)if(s=p[o=h[i]],l=d[o],!v[o]&&!t.default$10(s,l))if(t.default$10(s.source,l.source)&&t.default$10(s["source-layer"],l["source-layer"])&&t.default$10(s.type,l.type)){for(u in oe(s.layout,l.layout,n,o,null,ee.setLayoutProperty),oe(s.paint,l.paint,n,o,null,ee.setPaintProperty),t.default$10(s.filter,l.filter)||n.push({command:ee.setFilter,args:[o,l.filter]}),t.default$10(s.minzoom,l.minzoom)&&t.default$10(s.maxzoom,l.maxzoom)||n.push({command:ee.setLayerZoomRange,args:[o,l.minzoom,l.maxzoom]}),s)s.hasOwnProperty(u)&&"layout"!==u&&"paint"!==u&&"filter"!==u&&"metadata"!==u&&"minzoom"!==u&&"maxzoom"!==u&&(0===u.indexOf("paint.")?oe(s[u],l[u],n,o,u.slice(6),ee.setPaintProperty):t.default$10(s[u],l[u])||n.push({command:ee.setLayerProperty,args:[o,u,l[u]]}));for(u in l)l.hasOwnProperty(u)&&!s.hasOwnProperty(u)&&"layout"!==u&&"paint"!==u&&"filter"!==u&&"metadata"!==u&&"minzoom"!==u&&"maxzoom"!==u&&(0===u.indexOf("paint.")?oe(s[u],l[u],n,o,u.slice(6),ee.setPaintProperty):t.default$10(s[u],l[u])||n.push({command:ee.setLayerProperty,args:[o,u,l[u]]}))}else n.push({command:ee.removeLayer,args:[o]}),c=g[g.lastIndexOf(o)+1],n.push({command:ee.addLayer,args:[l,c]})}(o,r.layers,n)}catch(t){console.warn("Unable to compute style diff:",t),n=[{command:ee.setStyle,args:[r]}]}return n}(this.serialize(),e).filter(function(t){return!(t.command in $e)});if(0===n.length)return!1;var i=n.filter(function(t){return!(t.command in Ze)});if(i.length>0)throw new Error("Unimplemented: "+i.map(function(t){return t.command}).join(", ")+".");return n.forEach(function(t){"setTransition"!==t.command&&r[t.command].apply(r,t.args)}),this.stylesheet=e,!0},r.prototype.addImage=function(e,r){if(this.getImage(e))return this.fire(new t.ErrorEvent(new Error("An image with this name already exists.")));this.imageManager.addImage(e,r),this.fire(new t.Event("data",{dataType:"style"}))},r.prototype.getImage=function(t){return this.imageManager.getImage(t)},r.prototype.removeImage=function(e){if(!this.getImage(e))return this.fire(new t.ErrorEvent(new Error("No image with this name exists.")));this.imageManager.removeImage(e),this.fire(new t.Event("data",{dataType:"style"}))},r.prototype.addSource=function(e,r,n){var i=this;if(this._checkLoaded(),void 0!==this.sourceCaches[e])throw new Error("There is already a source with this ID");if(!r.type)throw new Error("The type property must be defined, but the only the following properties were given: "+Object.keys(r).join(", ")+".");if(!(["vector","raster","geojson","video","image"].indexOf(r.type)>=0&&this._validate(t.validateStyle.source,"sources."+e,r,null,n))){this.map&&this.map._collectResourceTiming&&(r.collectResourceTiming=!0);var a=this.sourceCaches[e]=new Wt(e,r,this.dispatcher);a.style=this,a.setEventedParent(this,function(){return{isSourceLoaded:i.loaded(),source:a.serialize(),sourceId:e}}),a.onAdd(this.map),this._changed=!0}},r.prototype.removeSource=function(e){if(this._checkLoaded(),void 0===this.sourceCaches[e])throw new Error("There is no source with this ID");for(var r in this._layers)if(this._layers[r].source===e)return this.fire(new t.ErrorEvent(new Error('Source "'+e+'" cannot be removed while layer "'+r+'" is using it.')));var n=this.sourceCaches[e];delete this.sourceCaches[e],delete this._updatedSources[e],n.fire(new t.Event("data",{sourceDataType:"metadata",dataType:"source",sourceId:e})),n.setEventedParent(null),n.clearTiles(),n.onRemove&&n.onRemove(this.map),this._changed=!0},r.prototype.setGeoJSONSourceData=function(t,e){this._checkLoaded(),this.sourceCaches[t].getSource().setData(e),this._changed=!0},r.prototype.getSource=function(t){return this.sourceCaches[t]&&this.sourceCaches[t].getSource()},r.prototype.addLayer=function(e,r,n){this._checkLoaded();var i=e.id;if(this.getLayer(i))this.fire(new t.ErrorEvent(new Error('Layer with id "'+i+'" already exists on this map')));else if("object"==typeof e.source&&(this.addSource(i,e.source),e=t.clone(e),e=t.extend(e,{source:i})),!this._validate(t.validateStyle.layer,"layers."+i,e,{arrayIndex:-1},n)){var a=t.default$22(e);this._validateLayer(a),a.setEventedParent(this,{layer:{id:i}});var o=r?this._order.indexOf(r):this._order.length;if(r&&-1===o)this.fire(new t.ErrorEvent(new Error('Layer with id "'+r+'" does not exist on this map.')));else{if(this._order.splice(o,0,i),this._layerOrderChanged=!0,this._layers[i]=a,this._removedLayers[i]&&a.source){var s=this._removedLayers[i];delete this._removedLayers[i],s.type!==a.type?this._updatedSources[a.source]="clear":(this._updatedSources[a.source]="reload",this.sourceCaches[a.source].pause())}this._updateLayer(a)}}},r.prototype.moveLayer=function(e,r){if(this._checkLoaded(),this._changed=!0,this._layers[e]){if(e!==r){var n=this._order.indexOf(e);this._order.splice(n,1);var i=r?this._order.indexOf(r):this._order.length;r&&-1===i?this.fire(new t.ErrorEvent(new Error('Layer with id "'+r+'" does not exist on this map.'))):(this._order.splice(i,0,e),this._layerOrderChanged=!0)}}else this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be moved.")))},r.prototype.removeLayer=function(e){this._checkLoaded();var r=this._layers[e];if(r){r.setEventedParent(null);var n=this._order.indexOf(e);this._order.splice(n,1),this._layerOrderChanged=!0,this._changed=!0,this._removedLayers[e]=r,delete this._layers[e],delete this._updatedLayers[e],delete this._updatedPaintProps[e]}else this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be removed.")))},r.prototype.getLayer=function(t){return this._layers[t]},r.prototype.setLayerZoomRange=function(e,r,n){this._checkLoaded();var i=this.getLayer(e);i?i.minzoom===r&&i.maxzoom===n||(null!=r&&(i.minzoom=r),null!=n&&(i.maxzoom=n),this._updateLayer(i)):this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot have zoom extent.")))},r.prototype.setFilter=function(e,r){this._checkLoaded();var n=this.getLayer(e);if(n){if(!t.default$10(n.filter,r))return null==r?(n.filter=void 0,void this._updateLayer(n)):void(this._validate(t.validateStyle.filter,"layers."+n.id+".filter",r)||(n.filter=t.clone(r),this._updateLayer(n)))}else this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be filtered.")))},r.prototype.getFilter=function(e){return t.clone(this.getLayer(e).filter)},r.prototype.setLayoutProperty=function(e,r,n){this._checkLoaded();var i=this.getLayer(e);i?t.default$10(i.getLayoutProperty(r),n)||(i.setLayoutProperty(r,n),this._updateLayer(i)):this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be styled.")))},r.prototype.getLayoutProperty=function(t,e){return this.getLayer(t).getLayoutProperty(e)},r.prototype.setPaintProperty=function(e,r,n){this._checkLoaded();var i=this.getLayer(e);if(i){if(!t.default$10(i.getPaintProperty(r),n)){var a=i._transitionablePaint._values[r].value.isDataDriven();i.setPaintProperty(r,n),(i._transitionablePaint._values[r].value.isDataDriven()||a)&&this._updateLayer(i),this._changed=!0,this._updatedPaintProps[e]=!0}}else this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be styled.")))},r.prototype.getPaintProperty=function(t,e){return this.getLayer(t).getPaintProperty(e)},r.prototype.getTransition=function(){return t.extend({duration:300,delay:0},this.stylesheet&&this.stylesheet.transition)},r.prototype.serialize=function(){var e=this;return t.filterObject({version:this.stylesheet.version,name:this.stylesheet.name,metadata:this.stylesheet.metadata,light:this.stylesheet.light,center:this.stylesheet.center,zoom:this.stylesheet.zoom,bearing:this.stylesheet.bearing,pitch:this.stylesheet.pitch,sprite:this.stylesheet.sprite,glyphs:this.stylesheet.glyphs,transition:this.stylesheet.transition,sources:t.mapObject(this.sourceCaches,function(t){return t.serialize()}),layers:this._order.map(function(t){return e._layers[t].serialize()})},function(t){return void 0!==t})},r.prototype._updateLayer=function(t){this._updatedLayers[t.id]=!0,t.source&&!this._updatedSources[t.source]&&(this._updatedSources[t.source]="reload",this.sourceCaches[t.source].pause()),this._changed=!0},r.prototype._flattenRenderedFeatures=function(t){for(var e=[],r=this._order.length-1;r>=0;r--)for(var n=this._order[r],i=0,a=t;i<a.length;i+=1){var o=a[i][n];if(o)for(var s=0,l=o;s<l.length;s+=1){var c=l[s];e.push(c)}}return e},r.prototype.queryRenderedFeatures=function(e,r,n){r&&r.filter&&this._validate(t.validateStyle.filter,"queryRenderedFeatures.filter",r.filter);var i={};if(r&&r.layers){if(!Array.isArray(r.layers))return this.fire(new t.ErrorEvent(new Error("parameters.layers must be an Array."))),[];for(var a=0,o=r.layers;a<o.length;a+=1){var s=o[a],l=this._layers[s];if(!l)return this.fire(new t.ErrorEvent(new Error("The layer '"+s+"' does not exist in the map's style and cannot be queried for features."))),[];i[l.source]=!0}}var c=[];for(var u in this.sourceCaches)r.layers&&!i[u]||c.push(at(this.sourceCaches[u],this._layers,e.worldCoordinate,r,n));return this.placement&&c.push(function(t,e,r,n,i){for(var a={},o=n.queryRenderedSymbols(e),s=[],l=0,c=Object.keys(o).map(Number);l<c.length;l+=1){var u=c[l];s.push(i[u])}s.sort(ot);for(var f=function(){var e=p[h],n=e.featureIndex.lookupSymbolFeatures(o[e.bucketInstanceId],e.bucketIndex,e.sourceLayerIndex,r.filter,r.layers,t);for(var i in n){var s=a[i]=a[i]||[],l=n[i];l.sort(function(t,r){var n=e.featureSortOrder;if(n){var i=n.indexOf(t.featureIndex);return n.indexOf(r.featureIndex)-i}return r.featureIndex-t.featureIndex});for(var c=0,u=l;c<u.length;c+=1){var f=u[c];s.push(f.feature)}}},h=0,p=s;h<p.length;h+=1)f();return a}(this._layers,e.viewport,r,this.placement.collisionIndex,this.placement.retainedQueryData)),this._flattenRenderedFeatures(c)},r.prototype.querySourceFeatures=function(e,r){r&&r.filter&&this._validate(t.validateStyle.filter,"querySourceFeatures.filter",r.filter);var n=this.sourceCaches[e];return n?function(t,e){for(var r=t.getRenderableIds().map(function(e){return t.getTileByID(e)}),n=[],i={},a=0;a<r.length;a++){var o=r[a],s=o.tileID.canonical.key;i[s]||(i[s]=!0,o.querySourceFeatures(n,e))}return n}(n,r):[]},r.prototype.addSourceType=function(t,e,n){return r.getSourceType(t)?n(new Error('A source type called "'+t+'" already exists.')):(r.setSourceType(t,e),e.workerSourceURL?void this.dispatcher.broadcast("loadWorkerSource",{name:t,url:e.workerSourceURL},n):n(null,null))},r.prototype.getLight=function(){return this.light.getLight()},r.prototype.setLight=function(e){this._checkLoaded();var r=this.light.getLight(),n=!1;for(var i in e)if(!t.default$10(e[i],r[i])){n=!0;break}if(n){var o={now:a.now(),transition:t.extend({duration:300,delay:0},this.stylesheet.transition)};this.light.setLight(e),this.light.updateTransitions(o)}},r.prototype._validate=function(e,r,n,i,a){return(!a||!1!==a.validate)&&Xe(this,e.call(t.validateStyle,t.extend({key:r,style:this.serialize(),value:n,styleSpec:t.default$5},i)))},r.prototype._remove=function(){for(var e in t.evented.off("pluginAvailable",this._rtlTextPluginCallback),this.sourceCaches)this.sourceCaches[e].clearTiles();this.dispatcher.remove()},r.prototype._clearSource=function(t){this.sourceCaches[t].clearTiles()},r.prototype._reloadSource=function(t){this.sourceCaches[t].resume(),this.sourceCaches[t].reload()},r.prototype._updateSources=function(t){for(var e in this.sourceCaches)this.sourceCaches[e].update(t)},r.prototype._generateCollisionBoxes=function(){for(var t in this.sourceCaches)this._reloadSource(t)},r.prototype._updatePlacement=function(t,e,r){for(var n=!1,i=!1,o={},s=0,l=this._order;s<l.length;s+=1){var c=l[s],u=this._layers[c];if("symbol"===u.type){if(!o[u.source]){var f=this.sourceCaches[u.source];o[u.source]=f.getRenderableIds().map(function(t){return f.getTileByID(t)}).sort(function(t,e){return e.tileID.overscaledZ-t.tileID.overscaledZ||(t.tileID.isLessThan(e.tileID)?-1:1)})}var h=this.crossTileSymbolIndex.addLayer(u,o[u.source],t.center.lng);n=n||h}}this.crossTileSymbolIndex.pruneUnusedLayers(this._order);var p=this._layerOrderChanged;if((p||!this.pauseablePlacement||this.pauseablePlacement.isDone()&&!this.placement.stillRecent(a.now()))&&(this.pauseablePlacement=new Ue(t,this._order,p,e,r),this._layerOrderChanged=!1),this.pauseablePlacement.isDone()?this.placement.setStale():(this.pauseablePlacement.continuePlacement(this._order,this._layers,o),this.pauseablePlacement.isDone()&&(this.placement=this.pauseablePlacement.commit(this.placement,a.now()),i=!0),n&&this.pauseablePlacement.placement.setStale()),i||n)for(var d=0,g=this._order;d<g.length;d+=1){var v=g[d],m=this._layers[v];"symbol"===m.type&&this.placement.updateLayerOpacities(m,o[m.source])}return!this.pauseablePlacement.isDone()||this.placement.hasTransitions(a.now())},r.prototype.getImages=function(t,e,r){this.imageManager.getImages(e.icons,r)},r.prototype.getGlyphs=function(t,e,r){this.glyphManager.getGlyphs(e.stacks,r)},r}(t.Evented);Je.getSourceType=function(t){return nt[t]},Je.setSourceType=function(t,e){nt[t]=e},Je.registerForPluginAvailability=t.registerForPluginAvailability;var Ke=t.createLayout([{name:"a_pos",type:"Int16",components:2}]),Qe={prelude:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n\n#if !defined(lowp)\n#define lowp\n#endif\n\n#if !defined(mediump)\n#define mediump\n#endif\n\n#if !defined(highp)\n#define highp\n#endif\n\n#endif\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n\n#if !defined(lowp)\n#define lowp\n#endif\n\n#if !defined(mediump)\n#define mediump\n#endif\n\n#if !defined(highp)\n#define highp\n#endif\n\n#endif\n\n// Unpack a pair of values that have been packed into a single float.\n// The packed values are assumed to be 8-bit unsigned integers, and are\n// packed like so:\n// packedValue = floor(input[0]) * 256 + input[1],\nvec2 unpack_float(const float packedValue) {\n    int packedIntValue = int(packedValue);\n    int v0 = packedIntValue / 256;\n    return vec2(v0, packedIntValue - v0 * 256);\n}\n\nvec2 unpack_opacity(const float packedOpacity) {\n    int intOpacity = int(packedOpacity) / 2;\n    return vec2(float(intOpacity) / 127.0, mod(packedOpacity, 2.0));\n}\n\n// To minimize the number of attributes needed, we encode a 4-component\n// color into a pair of floats (i.e. a vec2) as follows:\n// [ floor(color.r * 255) * 256 + color.g * 255,\n//   floor(color.b * 255) * 256 + color.g * 255 ]\nvec4 decode_color(const vec2 encodedColor) {\n    return vec4(\n        unpack_float(encodedColor[0]) / 255.0,\n        unpack_float(encodedColor[1]) / 255.0\n    );\n}\n\n// Unpack a pair of paint values and interpolate between them.\nfloat unpack_mix_vec2(const vec2 packedValue, const float t) {\n    return mix(packedValue[0], packedValue[1], t);\n}\n\n// Unpack a pair of paint values and interpolate between them.\nvec4 unpack_mix_vec4(const vec4 packedColors, const float t) {\n    vec4 minColor = decode_color(vec2(packedColors[0], packedColors[1]));\n    vec4 maxColor = decode_color(vec2(packedColors[2], packedColors[3]));\n    return mix(minColor, maxColor, t);\n}\n\n// The offset depends on how many pixels are between the world origin and the edge of the tile:\n// vec2 offset = mod(pixel_coord, size)\n//\n// At high zoom levels there are a ton of pixels between the world origin and the edge of the tile.\n// The glsl spec only guarantees 16 bits of precision for highp floats. We need more than that.\n//\n// The pixel_coord is passed in as two 16 bit values:\n// pixel_coord_upper = floor(pixel_coord / 2^16)\n// pixel_coord_lower = mod(pixel_coord, 2^16)\n//\n// The offset is calculated in a series of steps that should preserve this precision:\nvec2 get_pattern_pos(const vec2 pixel_coord_upper, const vec2 pixel_coord_lower,\n    const vec2 pattern_size, const float tile_units_to_pixels, const vec2 pos) {\n\n    vec2 offset = mod(mod(mod(pixel_coord_upper, pattern_size) * 256.0, pattern_size) * 256.0 + pixel_coord_lower, pattern_size);\n    return (tile_units_to_pixels * pos + offset) / pattern_size;\n}\n"},background:{fragmentSource:"uniform vec4 u_color;\nuniform float u_opacity;\n\nvoid main() {\n    gl_FragColor = u_color * u_opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"attribute vec2 a_pos;\n\nuniform mat4 u_matrix;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n}\n"},backgroundPattern:{fragmentSource:"uniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform vec2 u_texsize;\nuniform float u_mix;\nuniform float u_opacity;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\n\nvoid main() {\n    vec2 imagecoord = mod(v_pos_a, 1.0);\n    vec2 pos = mix(u_pattern_tl_a / u_texsize, u_pattern_br_a / u_texsize, imagecoord);\n    vec4 color1 = texture2D(u_image, pos);\n\n    vec2 imagecoord_b = mod(v_pos_b, 1.0);\n    vec2 pos2 = mix(u_pattern_tl_b / u_texsize, u_pattern_br_b / u_texsize, imagecoord_b);\n    vec4 color2 = texture2D(u_image, pos2);\n\n    gl_FragColor = mix(color1, color2, u_mix) * u_opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pixel_coord_upper;\nuniform vec2 u_pixel_coord_lower;\nuniform float u_scale_a;\nuniform float u_scale_b;\nuniform float u_tile_units_to_pixels;\n\nattribute vec2 a_pos;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n\n    v_pos_a = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_a * u_pattern_size_a, u_tile_units_to_pixels, a_pos);\n    v_pos_b = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_b * u_pattern_size_b, u_tile_units_to_pixels, a_pos);\n}\n"},circle:{fragmentSource:"#pragma mapbox: define highp vec4 color\n#pragma mapbox: define mediump float radius\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define highp vec4 stroke_color\n#pragma mapbox: define mediump float stroke_width\n#pragma mapbox: define lowp float stroke_opacity\n\nvarying vec3 v_data;\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize mediump float radius\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize highp vec4 stroke_color\n    #pragma mapbox: initialize mediump float stroke_width\n    #pragma mapbox: initialize lowp float stroke_opacity\n\n    vec2 extrude = v_data.xy;\n    float extrude_length = length(extrude);\n\n    lowp float antialiasblur = v_data.z;\n    float antialiased_blur = -max(blur, antialiasblur);\n\n    float opacity_t = smoothstep(0.0, antialiased_blur, extrude_length - 1.0);\n\n    float color_t = stroke_width < 0.01 ? 0.0 : smoothstep(\n        antialiased_blur,\n        0.0,\n        extrude_length - radius / (radius + stroke_width)\n    );\n\n    gl_FragColor = opacity_t * mix(color * opacity, stroke_color * stroke_opacity, color_t);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform bool u_scale_with_map;\nuniform bool u_pitch_with_map;\nuniform vec2 u_extrude_scale;\nuniform highp float u_camera_to_center_distance;\n\nattribute vec2 a_pos;\n\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define mediump float radius\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define highp vec4 stroke_color\n#pragma mapbox: define mediump float stroke_width\n#pragma mapbox: define lowp float stroke_opacity\n\nvarying vec3 v_data;\n\nvoid main(void) {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize mediump float radius\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize highp vec4 stroke_color\n    #pragma mapbox: initialize mediump float stroke_width\n    #pragma mapbox: initialize lowp float stroke_opacity\n\n    // unencode the extrusion vector that we snuck into the a_pos vector\n    vec2 extrude = vec2(mod(a_pos, 2.0) * 2.0 - 1.0);\n\n    // multiply a_pos by 0.5, since we had it * 2 in order to sneak\n    // in extrusion data\n    vec2 circle_center = floor(a_pos * 0.5);\n    if (u_pitch_with_map) {\n        vec2 corner_position = circle_center;\n        if (u_scale_with_map) {\n            corner_position += extrude * (radius + stroke_width) * u_extrude_scale;\n        } else {\n            // Pitching the circle with the map effectively scales it with the map\n            // To counteract the effect for pitch-scale: viewport, we rescale the\n            // whole circle based on the pitch scaling effect at its central point\n            vec4 projected_center = u_matrix * vec4(circle_center, 0, 1);\n            corner_position += extrude * (radius + stroke_width) * u_extrude_scale * (projected_center.w / u_camera_to_center_distance);\n        }\n\n        gl_Position = u_matrix * vec4(corner_position, 0, 1);\n    } else {\n        gl_Position = u_matrix * vec4(circle_center, 0, 1);\n\n        if (u_scale_with_map) {\n            gl_Position.xy += extrude * (radius + stroke_width) * u_extrude_scale * u_camera_to_center_distance;\n        } else {\n            gl_Position.xy += extrude * (radius + stroke_width) * u_extrude_scale * gl_Position.w;\n        }\n    }\n\n    // This is a minimum blur distance that serves as a faux-antialiasing for\n    // the circle. since blur is a ratio of the circle's size and the intent is\n    // to keep the blur at roughly 1px, the two are inversely related.\n    lowp float antialiasblur = 1.0 / DEVICE_PIXEL_RATIO / (radius + stroke_width);\n\n    v_data = vec3(extrude.x, extrude.y, antialiasblur);\n}\n"},clippingMask:{fragmentSource:"void main() {\n    gl_FragColor = vec4(1.0);\n}\n",vertexSource:"attribute vec2 a_pos;\n\nuniform mat4 u_matrix;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n}\n"},heatmap:{fragmentSource:"#pragma mapbox: define highp float weight\n\nuniform highp float u_intensity;\nvarying vec2 v_extrude;\n\n// Gaussian kernel coefficient: 1 / sqrt(2 * PI)\n#define GAUSS_COEF 0.3989422804014327\n\nvoid main() {\n    #pragma mapbox: initialize highp float weight\n\n    // Kernel density estimation with a Gaussian kernel of size 5x5\n    float d = -0.5 * 3.0 * 3.0 * dot(v_extrude, v_extrude);\n    float val = weight * u_intensity * GAUSS_COEF * exp(d);\n\n    gl_FragColor = vec4(val, 1.0, 1.0, 1.0);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#pragma mapbox: define highp float weight\n#pragma mapbox: define mediump float radius\n\nuniform mat4 u_matrix;\nuniform float u_extrude_scale;\nuniform float u_opacity;\nuniform float u_intensity;\n\nattribute vec2 a_pos;\n\nvarying vec2 v_extrude;\n\n// Effective \"0\" in the kernel density texture to adjust the kernel size to;\n// this empirically chosen number minimizes artifacts on overlapping kernels\n// for typical heatmap cases (assuming clustered source)\nconst highp float ZERO = 1.0 / 255.0 / 16.0;\n\n// Gaussian kernel coefficient: 1 / sqrt(2 * PI)\n#define GAUSS_COEF 0.3989422804014327\n\nvoid main(void) {\n    #pragma mapbox: initialize highp float weight\n    #pragma mapbox: initialize mediump float radius\n\n    // unencode the extrusion vector that we snuck into the a_pos vector\n    vec2 unscaled_extrude = vec2(mod(a_pos, 2.0) * 2.0 - 1.0);\n\n    // This 'extrude' comes in ranging from [-1, -1], to [1, 1].  We'll use\n    // it to produce the vertices of a square mesh framing the point feature\n    // we're adding to the kernel density texture.  We'll also pass it as\n    // a varying, so that the fragment shader can determine the distance of\n    // each fragment from the point feature.\n    // Before we do so, we need to scale it up sufficiently so that the\n    // kernel falls effectively to zero at the edge of the mesh.\n    // That is, we want to know S such that\n    // weight * u_intensity * GAUSS_COEF * exp(-0.5 * 3.0^2 * S^2) == ZERO\n    // Which solves to:\n    // S = sqrt(-2.0 * log(ZERO / (weight * u_intensity * GAUSS_COEF))) / 3.0\n    float S = sqrt(-2.0 * log(ZERO / weight / u_intensity / GAUSS_COEF)) / 3.0;\n\n    // Pass the varying in units of radius\n    v_extrude = S * unscaled_extrude;\n\n    // Scale by radius and the zoom-based scale factor to produce actual\n    // mesh position\n    vec2 extrude = v_extrude * radius * u_extrude_scale;\n\n    // multiply a_pos by 0.5, since we had it * 2 in order to sneak\n    // in extrusion data\n    vec4 pos = vec4(floor(a_pos * 0.5) + extrude, 0, 1);\n\n    gl_Position = u_matrix * pos;\n}\n"},heatmapTexture:{fragmentSource:"uniform sampler2D u_image;\nuniform sampler2D u_color_ramp;\nuniform float u_opacity;\nvarying vec2 v_pos;\n\nvoid main() {\n    float t = texture2D(u_image, v_pos).r;\n    vec4 color = texture2D(u_color_ramp, vec2(t, 0.5));\n    gl_FragColor = color * u_opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(0.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec2 u_world;\nattribute vec2 a_pos;\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos * u_world, 0, 1);\n\n    v_pos.x = a_pos.x;\n    v_pos.y = 1.0 - a_pos.y;\n}\n"},collisionBox:{fragmentSource:"\nvarying float v_placed;\nvarying float v_notUsed;\n\nvoid main() {\n\n    float alpha = 0.5;\n\n    // Red = collision, hide label\n    gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0) * alpha;\n\n    // Blue = no collision, label is showing\n    if (v_placed > 0.5) {\n        gl_FragColor = vec4(0.0, 0.0, 1.0, 0.5) * alpha;\n    }\n\n    if (v_notUsed > 0.5) {\n        // This box not used, fade it out\n        gl_FragColor *= .1;\n    }\n}",vertexSource:"attribute vec2 a_pos;\nattribute vec2 a_anchor_pos;\nattribute vec2 a_extrude;\nattribute vec2 a_placed;\n\nuniform mat4 u_matrix;\nuniform vec2 u_extrude_scale;\nuniform float u_camera_to_center_distance;\n\nvarying float v_placed;\nvarying float v_notUsed;\n\nvoid main() {\n    vec4 projectedPoint = u_matrix * vec4(a_anchor_pos, 0, 1);\n    highp float camera_to_anchor_distance = projectedPoint.w;\n    highp float collision_perspective_ratio = clamp(\n        0.5 + 0.5 * (u_camera_to_center_distance / camera_to_anchor_distance),\n        0.0, // Prevents oversized near-field boxes in pitched/overzoomed tiles\n        4.0);\n\n    gl_Position = u_matrix * vec4(a_pos, 0.0, 1.0);\n    gl_Position.xy += a_extrude * u_extrude_scale * gl_Position.w * collision_perspective_ratio;\n\n    v_placed = a_placed.x;\n    v_notUsed = a_placed.y;\n}\n"},collisionCircle:{fragmentSource:"uniform float u_overscale_factor;\n\nvarying float v_placed;\nvarying float v_notUsed;\nvarying float v_radius;\nvarying vec2 v_extrude;\nvarying vec2 v_extrude_scale;\n\nvoid main() {\n    float alpha = 0.5;\n\n    // Red = collision, hide label\n    vec4 color = vec4(1.0, 0.0, 0.0, 1.0) * alpha;\n\n    // Blue = no collision, label is showing\n    if (v_placed > 0.5) {\n        color = vec4(0.0, 0.0, 1.0, 0.5) * alpha;\n    }\n\n    if (v_notUsed > 0.5) {\n        // This box not used, fade it out\n        color *= .2;\n    }\n\n    float extrude_scale_length = length(v_extrude_scale);\n    float extrude_length = length(v_extrude) * extrude_scale_length;\n    float stroke_width = 15.0 * extrude_scale_length / u_overscale_factor;\n    float radius = v_radius * extrude_scale_length;\n\n    float distance_to_edge = abs(extrude_length - radius);\n    float opacity_t = smoothstep(-stroke_width, 0.0, -distance_to_edge);\n\n    gl_FragColor = opacity_t * color;\n}\n",vertexSource:"attribute vec2 a_pos;\nattribute vec2 a_anchor_pos;\nattribute vec2 a_extrude;\nattribute vec2 a_placed;\n\nuniform mat4 u_matrix;\nuniform vec2 u_extrude_scale;\nuniform float u_camera_to_center_distance;\n\nvarying float v_placed;\nvarying float v_notUsed;\nvarying float v_radius;\n\nvarying vec2 v_extrude;\nvarying vec2 v_extrude_scale;\n\nvoid main() {\n    vec4 projectedPoint = u_matrix * vec4(a_anchor_pos, 0, 1);\n    highp float camera_to_anchor_distance = projectedPoint.w;\n    highp float collision_perspective_ratio = clamp(\n        0.5 + 0.5 * (u_camera_to_center_distance / camera_to_anchor_distance),\n        0.0, // Prevents oversized near-field circles in pitched/overzoomed tiles\n        4.0);\n\n    gl_Position = u_matrix * vec4(a_pos, 0.0, 1.0);\n\n    highp float padding_factor = 1.2; // Pad the vertices slightly to make room for anti-alias blur\n    gl_Position.xy += a_extrude * u_extrude_scale * padding_factor * gl_Position.w * collision_perspective_ratio;\n\n    v_placed = a_placed.x;\n    v_notUsed = a_placed.y;\n    v_radius = abs(a_extrude.y); // We don't pitch the circles, so both units of the extrusion vector are equal in magnitude to the radius\n\n    v_extrude = a_extrude * padding_factor;\n    v_extrude_scale = u_extrude_scale * u_camera_to_center_distance * collision_perspective_ratio;\n}\n"},debug:{fragmentSource:"uniform highp vec4 u_color;\n\nvoid main() {\n    gl_FragColor = u_color;\n}\n",vertexSource:"attribute vec2 a_pos;\n\nuniform mat4 u_matrix;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n}\n"},fill:{fragmentSource:"#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_FragColor = color * opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"attribute vec2 a_pos;\n\nuniform mat4 u_matrix;\n\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n}\n"},fillOutline:{fragmentSource:"#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\n\nvarying vec2 v_pos;\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 outline_color\n    #pragma mapbox: initialize lowp float opacity\n\n    float dist = length(v_pos - gl_FragCoord.xy);\n    float alpha = 1.0 - smoothstep(0.0, 1.0, dist);\n    gl_FragColor = outline_color * (alpha * opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"attribute vec2 a_pos;\n\nuniform mat4 u_matrix;\nuniform vec2 u_world;\n\nvarying vec2 v_pos;\n\n#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 outline_color\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    v_pos = (gl_Position.xy / gl_Position.w + 1.0) / 2.0 * u_world;\n}\n"},fillOutlinePattern:{fragmentSource:"uniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform vec2 u_texsize;\nuniform float u_mix;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec2 v_pos;\n\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp float opacity\n\n    vec2 imagecoord = mod(v_pos_a, 1.0);\n    vec2 pos = mix(u_pattern_tl_a / u_texsize, u_pattern_br_a / u_texsize, imagecoord);\n    vec4 color1 = texture2D(u_image, pos);\n\n    vec2 imagecoord_b = mod(v_pos_b, 1.0);\n    vec2 pos2 = mix(u_pattern_tl_b / u_texsize, u_pattern_br_b / u_texsize, imagecoord_b);\n    vec4 color2 = texture2D(u_image, pos2);\n\n    // find distance to outline for alpha interpolation\n\n    float dist = length(v_pos - gl_FragCoord.xy);\n    float alpha = 1.0 - smoothstep(0.0, 1.0, dist);\n\n\n    gl_FragColor = mix(color1, color2, u_mix) * alpha * opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec2 u_world;\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pixel_coord_upper;\nuniform vec2 u_pixel_coord_lower;\nuniform float u_scale_a;\nuniform float u_scale_b;\nuniform float u_tile_units_to_pixels;\n\nattribute vec2 a_pos;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec2 v_pos;\n\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n\n    v_pos_a = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_a * u_pattern_size_a, u_tile_units_to_pixels, a_pos);\n    v_pos_b = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_b * u_pattern_size_b, u_tile_units_to_pixels, a_pos);\n\n    v_pos = (gl_Position.xy / gl_Position.w + 1.0) / 2.0 * u_world;\n}\n"},fillPattern:{fragmentSource:"uniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform vec2 u_texsize;\nuniform float u_mix;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\n\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp float opacity\n\n    vec2 imagecoord = mod(v_pos_a, 1.0);\n    vec2 pos = mix(u_pattern_tl_a / u_texsize, u_pattern_br_a / u_texsize, imagecoord);\n    vec4 color1 = texture2D(u_image, pos);\n\n    vec2 imagecoord_b = mod(v_pos_b, 1.0);\n    vec2 pos2 = mix(u_pattern_tl_b / u_texsize, u_pattern_br_b / u_texsize, imagecoord_b);\n    vec4 color2 = texture2D(u_image, pos2);\n\n    gl_FragColor = mix(color1, color2, u_mix) * opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pixel_coord_upper;\nuniform vec2 u_pixel_coord_lower;\nuniform float u_scale_a;\nuniform float u_scale_b;\nuniform float u_tile_units_to_pixels;\n\nattribute vec2 a_pos;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\n\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n\n    v_pos_a = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_a * u_pattern_size_a, u_tile_units_to_pixels, a_pos);\n    v_pos_b = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_b * u_pattern_size_b, u_tile_units_to_pixels, a_pos);\n}\n"},fillExtrusion:{fragmentSource:"varying vec4 v_color;\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n#pragma mapbox: define highp vec4 color\n\nvoid main() {\n    #pragma mapbox: initialize lowp float base\n    #pragma mapbox: initialize lowp float height\n    #pragma mapbox: initialize highp vec4 color\n\n    gl_FragColor = v_color;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec3 u_lightcolor;\nuniform lowp vec3 u_lightpos;\nuniform lowp float u_lightintensity;\n\nattribute vec2 a_pos;\nattribute vec4 a_normal_ed;\n\nvarying vec4 v_color;\n\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n\n#pragma mapbox: define highp vec4 color\n\nvoid main() {\n    #pragma mapbox: initialize lowp float base\n    #pragma mapbox: initialize lowp float height\n    #pragma mapbox: initialize highp vec4 color\n\n    vec3 normal = a_normal_ed.xyz;\n\n    base = max(0.0, base);\n    height = max(0.0, height);\n\n    float t = mod(normal.x, 2.0);\n\n    gl_Position = u_matrix * vec4(a_pos, t > 0.0 ? height : base, 1);\n\n    // Relative luminance (how dark/bright is the surface color?)\n    float colorvalue = color.r * 0.2126 + color.g * 0.7152 + color.b * 0.0722;\n\n    v_color = vec4(0.0, 0.0, 0.0, 1.0);\n\n    // Add slight ambient lighting so no extrusions are totally black\n    vec4 ambientlight = vec4(0.03, 0.03, 0.03, 1.0);\n    color += ambientlight;\n\n    // Calculate cos(theta), where theta is the angle between surface normal and diffuse light ray\n    float directional = clamp(dot(normal / 16384.0, u_lightpos), 0.0, 1.0);\n\n    // Adjust directional so that\n    // the range of values for highlight/shading is narrower\n    // with lower light intensity\n    // and with lighter/brighter surface colors\n    directional = mix((1.0 - u_lightintensity), max((1.0 - colorvalue + u_lightintensity), 1.0), directional);\n\n    // Add gradient along z axis of side surfaces\n    if (normal.y != 0.0) {\n        directional *= clamp((t + base) * pow(height / 150.0, 0.5), mix(0.7, 0.98, 1.0 - u_lightintensity), 1.0);\n    }\n\n    // Assign final color based on surface + ambient light color, diffuse light directional, and light color\n    // with lower bounds adjusted to hue of light\n    // so that shading is tinted with the complementary (opposite) color to the light color\n    v_color.r += clamp(color.r * directional * u_lightcolor.r, mix(0.0, 0.3, 1.0 - u_lightcolor.r), 1.0);\n    v_color.g += clamp(color.g * directional * u_lightcolor.g, mix(0.0, 0.3, 1.0 - u_lightcolor.g), 1.0);\n    v_color.b += clamp(color.b * directional * u_lightcolor.b, mix(0.0, 0.3, 1.0 - u_lightcolor.b), 1.0);\n}\n"},fillExtrusionPattern:{fragmentSource:"uniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform vec2 u_texsize;\nuniform float u_mix;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec4 v_lighting;\n\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n\nvoid main() {\n    #pragma mapbox: initialize lowp float base\n    #pragma mapbox: initialize lowp float height\n\n    vec2 imagecoord = mod(v_pos_a, 1.0);\n    vec2 pos = mix(u_pattern_tl_a / u_texsize, u_pattern_br_a / u_texsize, imagecoord);\n    vec4 color1 = texture2D(u_image, pos);\n\n    vec2 imagecoord_b = mod(v_pos_b, 1.0);\n    vec2 pos2 = mix(u_pattern_tl_b / u_texsize, u_pattern_br_b / u_texsize, imagecoord_b);\n    vec4 color2 = texture2D(u_image, pos2);\n\n    vec4 mixedColor = mix(color1, color2, u_mix);\n\n    gl_FragColor = mixedColor * v_lighting;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pixel_coord_upper;\nuniform vec2 u_pixel_coord_lower;\nuniform float u_scale_a;\nuniform float u_scale_b;\nuniform float u_tile_units_to_pixels;\nuniform float u_height_factor;\n\nuniform vec3 u_lightcolor;\nuniform lowp vec3 u_lightpos;\nuniform lowp float u_lightintensity;\n\nattribute vec2 a_pos;\nattribute vec4 a_normal_ed;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec4 v_lighting;\nvarying float v_directional;\n\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n\nvoid main() {\n    #pragma mapbox: initialize lowp float base\n    #pragma mapbox: initialize lowp float height\n\n    vec3 normal = a_normal_ed.xyz;\n    float edgedistance = a_normal_ed.w;\n\n    base = max(0.0, base);\n    height = max(0.0, height);\n\n    float t = mod(normal.x, 2.0);\n    float z = t > 0.0 ? height : base;\n\n    gl_Position = u_matrix * vec4(a_pos, z, 1);\n\n    vec2 pos = normal.x == 1.0 && normal.y == 0.0 && normal.z == 16384.0\n        ? a_pos // extrusion top\n        : vec2(edgedistance, z * u_height_factor); // extrusion side\n\n    v_pos_a = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_a * u_pattern_size_a, u_tile_units_to_pixels, pos);\n    v_pos_b = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_b * u_pattern_size_b, u_tile_units_to_pixels, pos);\n\n    v_lighting = vec4(0.0, 0.0, 0.0, 1.0);\n    float directional = clamp(dot(normal / 16383.0, u_lightpos), 0.0, 1.0);\n    directional = mix((1.0 - u_lightintensity), max((0.5 + u_lightintensity), 1.0), directional);\n\n    if (normal.y != 0.0) {\n        directional *= clamp((t + base) * pow(height / 150.0, 0.5), mix(0.7, 0.98, 1.0 - u_lightintensity), 1.0);\n    }\n\n    v_lighting.rgb += clamp(directional * u_lightcolor, mix(vec3(0.0), vec3(0.3), 1.0 - u_lightcolor), vec3(1.0));\n}\n"},extrusionTexture:{fragmentSource:"uniform sampler2D u_image;\nuniform float u_opacity;\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_FragColor = texture2D(u_image, v_pos) * u_opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(0.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec2 u_world;\nattribute vec2 a_pos;\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos * u_world, 0, 1);\n\n    v_pos.x = a_pos.x;\n    v_pos.y = 1.0 - a_pos.y;\n}\n"},hillshadePrepare:{fragmentSource:"#ifdef GL_ES\nprecision highp float;\n#endif\n\nuniform sampler2D u_image;\nvarying vec2 v_pos;\nuniform vec2 u_dimension;\nuniform float u_zoom;\nuniform float u_maxzoom;\n\nfloat getElevation(vec2 coord, float bias) {\n    // Convert encoded elevation value to meters\n    vec4 data = texture2D(u_image, coord) * 255.0;\n    return (data.r + data.g * 256.0 + data.b * 256.0 * 256.0) / 4.0;\n}\n\nvoid main() {\n    vec2 epsilon = 1.0 / u_dimension;\n\n    // queried pixels:\n    // +-----------+\n    // |   |   |   |\n    // | a | b | c |\n    // |   |   |   |\n    // +-----------+\n    // |   |   |   |\n    // | d | e | f |\n    // |   |   |   |\n    // +-----------+\n    // |   |   |   |\n    // | g | h | i |\n    // |   |   |   |\n    // +-----------+\n\n    float a = getElevation(v_pos + vec2(-epsilon.x, -epsilon.y), 0.0);\n    float b = getElevation(v_pos + vec2(0, -epsilon.y), 0.0);\n    float c = getElevation(v_pos + vec2(epsilon.x, -epsilon.y), 0.0);\n    float d = getElevation(v_pos + vec2(-epsilon.x, 0), 0.0);\n    float e = getElevation(v_pos, 0.0);\n    float f = getElevation(v_pos + vec2(epsilon.x, 0), 0.0);\n    float g = getElevation(v_pos + vec2(-epsilon.x, epsilon.y), 0.0);\n    float h = getElevation(v_pos + vec2(0, epsilon.y), 0.0);\n    float i = getElevation(v_pos + vec2(epsilon.x, epsilon.y), 0.0);\n\n    // here we divide the x and y slopes by 8 * pixel size\n    // where pixel size (aka meters/pixel) is:\n    // circumference of the world / (pixels per tile * number of tiles)\n    // which is equivalent to: 8 * 40075016.6855785 / (512 * pow(2, u_zoom))\n    // which can be reduced to: pow(2, 19.25619978527 - u_zoom)\n    // we want to vertically exaggerate the hillshading though, because otherwise\n    // it is barely noticeable at low zooms. to do this, we multiply this by some\n    // scale factor pow(2, (u_zoom - u_maxzoom) * a) where a is an arbitrary value\n    // Here we use a=0.3 which works out to the expression below. see \n    // nickidlugash's awesome breakdown for more info\n    // https://github.com/mapbox/mapbox-gl-js/pull/5286#discussion_r148419556\n    float exaggeration = u_zoom < 2.0 ? 0.4 : u_zoom < 4.5 ? 0.35 : 0.3;\n\n    vec2 deriv = vec2(\n        (c + f + f + i) - (a + d + d + g),\n        (g + h + h + i) - (a + b + b + c)\n    ) /  pow(2.0, (u_zoom - u_maxzoom) * exaggeration + 19.2562 - u_zoom);\n\n    gl_FragColor = clamp(vec4(\n        deriv.x / 2.0 + 0.5,\n        deriv.y / 2.0 + 0.5,\n        1.0,\n        1.0), 0.0, 1.0);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\n\nattribute vec2 a_pos;\nattribute vec2 a_texture_pos;\n\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    v_pos = (a_texture_pos / 8192.0) / 2.0 + 0.25;\n}\n"},hillshade:{fragmentSource:"uniform sampler2D u_image;\nvarying vec2 v_pos;\n\nuniform vec2 u_latrange;\nuniform vec2 u_light;\nuniform vec4 u_shadow;\nuniform vec4 u_highlight;\nuniform vec4 u_accent;\n\n#define PI 3.141592653589793\n\nvoid main() {\n    vec4 pixel = texture2D(u_image, v_pos);\n\n    vec2 deriv = ((pixel.rg * 2.0) - 1.0);\n\n    // We divide the slope by a scale factor based on the cosin of the pixel's approximate latitude\n    // to account for mercator projection distortion. see #4807 for details\n    float scaleFactor = cos(radians((u_latrange[0] - u_latrange[1]) * (1.0 - v_pos.y) + u_latrange[1]));\n    // We also multiply the slope by an arbitrary z-factor of 1.25\n    float slope = atan(1.25 * length(deriv) / scaleFactor);\n    float aspect = deriv.x != 0.0 ? atan(deriv.y, -deriv.x) : PI / 2.0 * (deriv.y > 0.0 ? 1.0 : -1.0);\n\n    float intensity = u_light.x;\n    // We add PI to make this property match the global light object, which adds PI/2 to the light's azimuthal\n    // position property to account for 0deg corresponding to north/the top of the viewport in the style spec\n    // and the original shader was written to accept (-illuminationDirection - 90) as the azimuthal.\n    float azimuth = u_light.y + PI;\n\n    // We scale the slope exponentially based on intensity, using a calculation similar to\n    // the exponential interpolation function in the style spec:\n    // https://github.com/mapbox/mapbox-gl-js/blob/master/src/style-spec/expression/definitions/interpolate.js#L217-L228\n    // so that higher intensity values create more opaque hillshading.\n    float base = 1.875 - intensity * 1.75;\n    float maxValue = 0.5 * PI;\n    float scaledSlope = intensity != 0.5 ? ((pow(base, slope) - 1.0) / (pow(base, maxValue) - 1.0)) * maxValue : slope;\n\n    // The accent color is calculated with the cosine of the slope while the shade color is calculated with the sine\n    // so that the accent color's rate of change eases in while the shade color's eases out.\n    float accent = cos(scaledSlope);\n    // We multiply both the accent and shade color by a clamped intensity value\n    // so that intensities >= 0.5 do not additionally affect the color values\n    // while intensity values < 0.5 make the overall color more transparent.\n    vec4 accent_color = (1.0 - accent) * u_accent * clamp(intensity * 2.0, 0.0, 1.0);\n    float shade = abs(mod((aspect + azimuth) / PI + 0.5, 2.0) - 1.0);\n    vec4 shade_color = mix(u_shadow, u_highlight, shade) * sin(scaledSlope) * clamp(intensity * 2.0, 0.0, 1.0);\n    gl_FragColor = accent_color * (1.0 - shade_color.a) + shade_color;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\n\nattribute vec2 a_pos;\nattribute vec2 a_texture_pos;\n\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    v_pos = a_texture_pos / 8192.0;\n}\n"},line:{fragmentSource:"#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n\nvarying vec2 v_width2;\nvarying vec2 v_normal;\nvarying float v_gamma_scale;\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n\n    // Calculate the distance of the pixel from the line in pixels.\n    float dist = length(v_normal) * v_width2.s;\n\n    // Calculate the antialiasing fade factor. This is either when fading in\n    // the line in case of an offset line (v_width2.t) or when fading out\n    // (v_width2.s)\n    float blur2 = (blur + 1.0 / DEVICE_PIXEL_RATIO) * v_gamma_scale;\n    float alpha = clamp(min(dist - (v_width2.t - blur2), v_width2.s - dist) / blur2, 0.0, 1.0);\n\n    gl_FragColor = color * (alpha * opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"\n\n// the distance over which the line edge fades out.\n// Retina devices need a smaller distance to avoid aliasing.\n#define ANTIALIASING 1.0 / DEVICE_PIXEL_RATIO / 2.0\n\n// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\nattribute vec4 a_pos_normal;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform vec2 u_gl_units_to_pixels;\n\nvarying vec2 v_normal;\nvarying vec2 v_width2;\nvarying float v_gamma_scale;\nvarying highp float v_linesofar;\n\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize mediump float gapwidth\n    #pragma mapbox: initialize lowp float offset\n    #pragma mapbox: initialize mediump float width\n\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n\n    v_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * 2.0;\n\n    vec2 pos = a_pos_normal.xy;\n\n    // x is 1 if it's a round cap, 0 otherwise\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = a_pos_normal.zw;\n    v_normal = normal;\n\n    // these transformations used to be applied in the JS and native code bases.\n    // moved them into the shader for clarity and simplicity.\n    gapwidth = gapwidth / 2.0;\n    float halfwidth = width / 2.0;\n    offset = -1.0 * offset;\n\n    float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0);\n    float outset = gapwidth + halfwidth * (gapwidth > 0.0 ? 2.0 : 1.0) + ANTIALIASING;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist = outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset2 = offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    vec4 projected_extrude = u_matrix * vec4(dist / u_ratio, 0.0, 0.0);\n    gl_Position = u_matrix * vec4(pos + offset2 / u_ratio, 0.0, 1.0) + projected_extrude;\n\n    // calculate how much the perspective view squishes or stretches the extrude\n    float extrude_length_without_perspective = length(dist);\n    float extrude_length_with_perspective = length(projected_extrude.xy / gl_Position.w * u_gl_units_to_pixels);\n    v_gamma_scale = extrude_length_without_perspective / extrude_length_with_perspective;\n\n    v_width2 = vec2(outset, inset);\n}\n"},lineGradient:{fragmentSource:"\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n\nuniform sampler2D u_image;\n\nvarying vec2 v_width2;\nvarying vec2 v_normal;\nvarying float v_gamma_scale;\nvarying highp float v_lineprogress;\n\nvoid main() {\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n\n    // Calculate the distance of the pixel from the line in pixels.\n    float dist = length(v_normal) * v_width2.s;\n\n    // Calculate the antialiasing fade factor. This is either when fading in\n    // the line in case of an offset line (v_width2.t) or when fading out\n    // (v_width2.s)\n    float blur2 = (blur + 1.0 / DEVICE_PIXEL_RATIO) * v_gamma_scale;\n    float alpha = clamp(min(dist - (v_width2.t - blur2), v_width2.s - dist) / blur2, 0.0, 1.0);\n\n    // For gradient lines, v_lineprogress is the ratio along the entire line,\n    // scaled to [0, 2^15), and the gradient ramp is stored in a texture.\n    vec4 color = texture2D(u_image, vec2(v_lineprogress, 0.5));\n\n    gl_FragColor = color * (alpha * opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"\n// the attribute conveying progress along a line is scaled to [0, 2^15)\n#define MAX_LINE_DISTANCE 32767.0\n\n// the distance over which the line edge fades out.\n// Retina devices need a smaller distance to avoid aliasing.\n#define ANTIALIASING 1.0 / DEVICE_PIXEL_RATIO / 2.0\n\n// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\nattribute vec4 a_pos_normal;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform vec2 u_gl_units_to_pixels;\n\nvarying vec2 v_normal;\nvarying vec2 v_width2;\nvarying float v_gamma_scale;\nvarying highp float v_lineprogress;\n\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\n\nvoid main() {\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize mediump float gapwidth\n    #pragma mapbox: initialize lowp float offset\n    #pragma mapbox: initialize mediump float width\n\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n\n    v_lineprogress = (floor(a_data.z / 4.0) + a_data.w * 64.0) * 2.0 / MAX_LINE_DISTANCE;\n\n    vec2 pos = a_pos_normal.xy;\n\n    // x is 1 if it's a round cap, 0 otherwise\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = a_pos_normal.zw;\n    v_normal = normal;\n\n    // these transformations used to be applied in the JS and native code bases.\n    // moved them into the shader for clarity and simplicity.\n    gapwidth = gapwidth / 2.0;\n    float halfwidth = width / 2.0;\n    offset = -1.0 * offset;\n\n    float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0);\n    float outset = gapwidth + halfwidth * (gapwidth > 0.0 ? 2.0 : 1.0) + ANTIALIASING;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist = outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset2 = offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    vec4 projected_extrude = u_matrix * vec4(dist / u_ratio, 0.0, 0.0);\n    gl_Position = u_matrix * vec4(pos + offset2 / u_ratio, 0.0, 1.0) + projected_extrude;\n\n    // calculate how much the perspective view squishes or stretches the extrude\n    float extrude_length_without_perspective = length(dist);\n    float extrude_length_with_perspective = length(projected_extrude.xy / gl_Position.w * u_gl_units_to_pixels);\n    v_gamma_scale = extrude_length_without_perspective / extrude_length_with_perspective;\n\n    v_width2 = vec2(outset, inset);\n}\n"},linePattern:{fragmentSource:"uniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform vec2 u_texsize;\nuniform float u_fade;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_normal;\nvarying vec2 v_width2;\nvarying float v_linesofar;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n\n    // Calculate the distance of the pixel from the line in pixels.\n    float dist = length(v_normal) * v_width2.s;\n\n    // Calculate the antialiasing fade factor. This is either when fading in\n    // the line in case of an offset line (v_width2.t) or when fading out\n    // (v_width2.s)\n    float blur2 = (blur + 1.0 / DEVICE_PIXEL_RATIO) * v_gamma_scale;\n    float alpha = clamp(min(dist - (v_width2.t - blur2), v_width2.s - dist) / blur2, 0.0, 1.0);\n\n    float x_a = mod(v_linesofar / u_pattern_size_a.x, 1.0);\n    float x_b = mod(v_linesofar / u_pattern_size_b.x, 1.0);\n\n    // v_normal.y is 0 at the midpoint of the line, -1 at the lower edge, 1 at the upper edge\n    // we clamp the line width outset to be between 0 and half the pattern height plus padding (2.0)\n    // to ensure we don't sample outside the designated symbol on the sprite sheet.\n    // 0.5 is added to shift the component to be bounded between 0 and 1 for interpolation of\n    // the texture coordinate\n    float y_a = 0.5 + (v_normal.y * clamp(v_width2.s, 0.0, (u_pattern_size_a.y + 2.0) / 2.0) / u_pattern_size_a.y);\n    float y_b = 0.5 + (v_normal.y * clamp(v_width2.s, 0.0, (u_pattern_size_b.y + 2.0) / 2.0) / u_pattern_size_b.y);\n    vec2 pos_a = mix(u_pattern_tl_a / u_texsize, u_pattern_br_a / u_texsize, vec2(x_a, y_a));\n    vec2 pos_b = mix(u_pattern_tl_b / u_texsize, u_pattern_br_b / u_texsize, vec2(x_b, y_b));\n\n    vec4 color = mix(texture2D(u_image, pos_a), texture2D(u_image, pos_b), u_fade);\n\n    gl_FragColor = color * alpha * opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\n// We scale the distance before adding it to the buffers so that we can store\n// long distances for long segments. Use this value to unscale the distance.\n#define LINE_DISTANCE_SCALE 2.0\n\n// the distance over which the line edge fades out.\n// Retina devices need a smaller distance to avoid aliasing.\n#define ANTIALIASING 1.0 / DEVICE_PIXEL_RATIO / 2.0\n\nattribute vec4 a_pos_normal;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform vec2 u_gl_units_to_pixels;\n\nvarying vec2 v_normal;\nvarying vec2 v_width2;\nvarying float v_linesofar;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define mediump float width\n\nvoid main() {\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize lowp float offset\n    #pragma mapbox: initialize mediump float gapwidth\n    #pragma mapbox: initialize mediump float width\n\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n    float a_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * LINE_DISTANCE_SCALE;\n\n    vec2 pos = a_pos_normal.xy;\n\n    // x is 1 if it's a round cap, 0 otherwise\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = a_pos_normal.zw;\n    v_normal = normal;\n\n    // these transformations used to be applied in the JS and native code bases.\n    // moved them into the shader for clarity and simplicity.\n    gapwidth = gapwidth / 2.0;\n    float halfwidth = width / 2.0;\n    offset = -1.0 * offset;\n\n    float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0);\n    float outset = gapwidth + halfwidth * (gapwidth > 0.0 ? 2.0 : 1.0) + ANTIALIASING;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist = outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset2 = offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    vec4 projected_extrude = u_matrix * vec4(dist / u_ratio, 0.0, 0.0);\n    gl_Position = u_matrix * vec4(pos + offset2 / u_ratio, 0.0, 1.0) + projected_extrude;\n\n    // calculate how much the perspective view squishes or stretches the extrude\n    float extrude_length_without_perspective = length(dist);\n    float extrude_length_with_perspective = length(projected_extrude.xy / gl_Position.w * u_gl_units_to_pixels);\n    v_gamma_scale = extrude_length_without_perspective / extrude_length_with_perspective;\n\n    v_linesofar = a_linesofar;\n    v_width2 = vec2(outset, inset);\n}\n"},lineSDF:{fragmentSource:"\nuniform sampler2D u_image;\nuniform float u_sdfgamma;\nuniform float u_mix;\n\nvarying vec2 v_normal;\nvarying vec2 v_width2;\nvarying vec2 v_tex_a;\nvarying vec2 v_tex_b;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize mediump float width\n    #pragma mapbox: initialize lowp float floorwidth\n\n    // Calculate the distance of the pixel from the line in pixels.\n    float dist = length(v_normal) * v_width2.s;\n\n    // Calculate the antialiasing fade factor. This is either when fading in\n    // the line in case of an offset line (v_width2.t) or when fading out\n    // (v_width2.s)\n    float blur2 = (blur + 1.0 / DEVICE_PIXEL_RATIO) * v_gamma_scale;\n    float alpha = clamp(min(dist - (v_width2.t - blur2), v_width2.s - dist) / blur2, 0.0, 1.0);\n\n    float sdfdist_a = texture2D(u_image, v_tex_a).a;\n    float sdfdist_b = texture2D(u_image, v_tex_b).a;\n    float sdfdist = mix(sdfdist_a, sdfdist_b, u_mix);\n    alpha *= smoothstep(0.5 - u_sdfgamma / floorwidth, 0.5 + u_sdfgamma / floorwidth, sdfdist);\n\n    gl_FragColor = color * (alpha * opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\n// We scale the distance before adding it to the buffers so that we can store\n// long distances for long segments. Use this value to unscale the distance.\n#define LINE_DISTANCE_SCALE 2.0\n\n// the distance over which the line edge fades out.\n// Retina devices need a smaller distance to avoid aliasing.\n#define ANTIALIASING 1.0 / DEVICE_PIXEL_RATIO / 2.0\n\nattribute vec4 a_pos_normal;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform vec2 u_patternscale_a;\nuniform float u_tex_y_a;\nuniform vec2 u_patternscale_b;\nuniform float u_tex_y_b;\nuniform vec2 u_gl_units_to_pixels;\n\nvarying vec2 v_normal;\nvarying vec2 v_width2;\nvarying vec2 v_tex_a;\nvarying vec2 v_tex_b;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 color\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize mediump float gapwidth\n    #pragma mapbox: initialize lowp float offset\n    #pragma mapbox: initialize mediump float width\n    #pragma mapbox: initialize lowp float floorwidth\n\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n    float a_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * LINE_DISTANCE_SCALE;\n\n    vec2 pos = a_pos_normal.xy;\n\n    // x is 1 if it's a round cap, 0 otherwise\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = a_pos_normal.zw;\n    v_normal = normal;\n\n    // these transformations used to be applied in the JS and native code bases.\n    // moved them into the shader for clarity and simplicity.\n    gapwidth = gapwidth / 2.0;\n    float halfwidth = width / 2.0;\n    offset = -1.0 * offset;\n\n    float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0);\n    float outset = gapwidth + halfwidth * (gapwidth > 0.0 ? 2.0 : 1.0) + ANTIALIASING;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist =outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset2 = offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    vec4 projected_extrude = u_matrix * vec4(dist / u_ratio, 0.0, 0.0);\n    gl_Position = u_matrix * vec4(pos + offset2 / u_ratio, 0.0, 1.0) + projected_extrude;\n\n    // calculate how much the perspective view squishes or stretches the extrude\n    float extrude_length_without_perspective = length(dist);\n    float extrude_length_with_perspective = length(projected_extrude.xy / gl_Position.w * u_gl_units_to_pixels);\n    v_gamma_scale = extrude_length_without_perspective / extrude_length_with_perspective;\n\n    v_tex_a = vec2(a_linesofar * u_patternscale_a.x / floorwidth, normal.y * u_patternscale_a.y + u_tex_y_a);\n    v_tex_b = vec2(a_linesofar * u_patternscale_b.x / floorwidth, normal.y * u_patternscale_b.y + u_tex_y_b);\n\n    v_width2 = vec2(outset, inset);\n}\n"},raster:{fragmentSource:"uniform float u_fade_t;\nuniform float u_opacity;\nuniform sampler2D u_image0;\nuniform sampler2D u_image1;\nvarying vec2 v_pos0;\nvarying vec2 v_pos1;\n\nuniform float u_brightness_low;\nuniform float u_brightness_high;\n\nuniform float u_saturation_factor;\nuniform float u_contrast_factor;\nuniform vec3 u_spin_weights;\n\nvoid main() {\n\n    // read and cross-fade colors from the main and parent tiles\n    vec4 color0 = texture2D(u_image0, v_pos0);\n    vec4 color1 = texture2D(u_image1, v_pos1);\n    if (color0.a > 0.0) {\n        color0.rgb = color0.rgb / color0.a;\n    }\n    if (color1.a > 0.0) {\n        color1.rgb = color1.rgb / color1.a;\n    }\n    vec4 color = mix(color0, color1, u_fade_t);\n    color.a *= u_opacity;\n    vec3 rgb = color.rgb;\n\n    // spin\n    rgb = vec3(\n        dot(rgb, u_spin_weights.xyz),\n        dot(rgb, u_spin_weights.zxy),\n        dot(rgb, u_spin_weights.yzx));\n\n    // saturation\n    float average = (color.r + color.g + color.b) / 3.0;\n    rgb += (average - rgb) * u_saturation_factor;\n\n    // contrast\n    rgb = (rgb - 0.5) * u_contrast_factor + 0.5;\n\n    // brightness\n    vec3 u_high_vec = vec3(u_brightness_low, u_brightness_low, u_brightness_low);\n    vec3 u_low_vec = vec3(u_brightness_high, u_brightness_high, u_brightness_high);\n\n    gl_FragColor = vec4(mix(u_high_vec, u_low_vec, rgb) * color.a, color.a);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"uniform mat4 u_matrix;\nuniform vec2 u_tl_parent;\nuniform float u_scale_parent;\nuniform float u_buffer_scale;\n\nattribute vec2 a_pos;\nattribute vec2 a_texture_pos;\n\nvarying vec2 v_pos0;\nvarying vec2 v_pos1;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    // We are using Int16 for texture position coordinates to give us enough precision for\n    // fractional coordinates. We use 8192 to scale the texture coordinates in the buffer\n    // as an arbitrarily high number to preserve adequate precision when rendering.\n    // This is also the same value as the EXTENT we are using for our tile buffer pos coordinates,\n    // so math for modifying either is consistent.\n    v_pos0 = (((a_texture_pos / 8192.0) - 0.5) / u_buffer_scale ) + 0.5;\n    v_pos1 = (v_pos0 * u_scale_parent) + u_tl_parent;\n}\n"},symbolIcon:{fragmentSource:"uniform sampler2D u_texture;\n\n#pragma mapbox: define lowp float opacity\n\nvarying vec2 v_tex;\nvarying float v_fade_opacity;\n\nvoid main() {\n    #pragma mapbox: initialize lowp float opacity\n\n    lowp float alpha = opacity * v_fade_opacity;\n    gl_FragColor = texture2D(u_texture, v_tex) * alpha;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"const float PI = 3.141592653589793;\n\nattribute vec4 a_pos_offset;\nattribute vec4 a_data;\nattribute vec3 a_projected_pos;\nattribute float a_fade_opacity;\n\nuniform bool u_is_size_zoom_constant;\nuniform bool u_is_size_feature_constant;\nuniform highp float u_size_t; // used to interpolate between zoom stops when size is a composite function\nuniform highp float u_size; // used when size is both zoom and feature constant\nuniform highp float u_camera_to_center_distance;\nuniform highp float u_pitch;\nuniform bool u_rotate_symbol;\nuniform highp float u_aspect_ratio;\nuniform float u_fade_change;\n\n#pragma mapbox: define lowp float opacity\n\nuniform mat4 u_matrix;\nuniform mat4 u_label_plane_matrix;\nuniform mat4 u_gl_coord_matrix;\n\nuniform bool u_is_text;\nuniform bool u_pitch_with_map;\n\nuniform vec2 u_texsize;\n\nvarying vec2 v_tex;\nvarying float v_fade_opacity;\n\nvoid main() {\n    #pragma mapbox: initialize lowp float opacity\n\n    vec2 a_pos = a_pos_offset.xy;\n    vec2 a_offset = a_pos_offset.zw;\n\n    vec2 a_tex = a_data.xy;\n    vec2 a_size = a_data.zw;\n\n    highp float segment_angle = -a_projected_pos[2];\n\n    float size;\n    if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {\n        size = mix(a_size[0], a_size[1], u_size_t) / 10.0;\n    } else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {\n        size = a_size[0] / 10.0;\n    } else if (!u_is_size_zoom_constant && u_is_size_feature_constant) {\n        size = u_size;\n    } else {\n        size = u_size;\n    }\n\n    vec4 projectedPoint = u_matrix * vec4(a_pos, 0, 1);\n    highp float camera_to_anchor_distance = projectedPoint.w;\n    // See comments in symbol_sdf.vertex\n    highp float distance_ratio = u_pitch_with_map ?\n        camera_to_anchor_distance / u_camera_to_center_distance :\n        u_camera_to_center_distance / camera_to_anchor_distance;\n    highp float perspective_ratio = clamp(\n            0.5 + 0.5 * distance_ratio,\n            0.0, // Prevents oversized near-field symbols in pitched/overzoomed tiles\n            4.0);\n\n    size *= perspective_ratio;\n\n    float fontScale = u_is_text ? size / 24.0 : size;\n\n    highp float symbol_rotation = 0.0;\n    if (u_rotate_symbol) {\n        // See comments in symbol_sdf.vertex\n        vec4 offsetProjectedPoint = u_matrix * vec4(a_pos + vec2(1, 0), 0, 1);\n\n        vec2 a = projectedPoint.xy / projectedPoint.w;\n        vec2 b = offsetProjectedPoint.xy / offsetProjectedPoint.w;\n\n        symbol_rotation = atan((b.y - a.y) / u_aspect_ratio, b.x - a.x);\n    }\n\n    highp float angle_sin = sin(segment_angle + symbol_rotation);\n    highp float angle_cos = cos(segment_angle + symbol_rotation);\n    mat2 rotation_matrix = mat2(angle_cos, -1.0 * angle_sin, angle_sin, angle_cos);\n\n    vec4 projected_pos = u_label_plane_matrix * vec4(a_projected_pos.xy, 0.0, 1.0);\n    gl_Position = u_gl_coord_matrix * vec4(projected_pos.xy / projected_pos.w + rotation_matrix * (a_offset / 32.0 * fontScale), 0.0, 1.0);\n\n    v_tex = a_tex / u_texsize;\n    vec2 fade_opacity = unpack_opacity(a_fade_opacity);\n    float fade_change = fade_opacity[1] > 0.5 ? u_fade_change : -u_fade_change;\n    v_fade_opacity = max(0.0, min(1.0, fade_opacity[0] + fade_change));\n}\n"},symbolSDF:{fragmentSource:"#define SDF_PX 8.0\n#define EDGE_GAMMA 0.105/DEVICE_PIXEL_RATIO\n\nuniform bool u_is_halo;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\n\nuniform sampler2D u_texture;\nuniform highp float u_gamma_scale;\nuniform bool u_is_text;\n\nvarying vec2 v_data0;\nvarying vec3 v_data1;\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 fill_color\n    #pragma mapbox: initialize highp vec4 halo_color\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize lowp float halo_width\n    #pragma mapbox: initialize lowp float halo_blur\n\n    vec2 tex = v_data0.xy;\n    float gamma_scale = v_data1.x;\n    float size = v_data1.y;\n    float fade_opacity = v_data1[2];\n\n    float fontScale = u_is_text ? size / 24.0 : size;\n\n    lowp vec4 color = fill_color;\n    highp float gamma = EDGE_GAMMA / (fontScale * u_gamma_scale);\n    lowp float buff = (256.0 - 64.0) / 256.0;\n    if (u_is_halo) {\n        color = halo_color;\n        gamma = (halo_blur * 1.19 / SDF_PX + EDGE_GAMMA) / (fontScale * u_gamma_scale);\n        buff = (6.0 - halo_width / fontScale) / SDF_PX;\n    }\n\n    lowp float dist = texture2D(u_texture, tex).a;\n    highp float gamma_scaled = gamma * gamma_scale;\n    highp float alpha = smoothstep(buff - gamma_scaled, buff + gamma_scaled, dist);\n\n    gl_FragColor = color * (alpha * opacity * fade_opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"const float PI = 3.141592653589793;\n\nattribute vec4 a_pos_offset;\nattribute vec4 a_data;\nattribute vec3 a_projected_pos;\nattribute float a_fade_opacity;\n\n// contents of a_size vary based on the type of property value\n// used for {text,icon}-size.\n// For constants, a_size is disabled.\n// For source functions, we bind only one value per vertex: the value of {text,icon}-size evaluated for the current feature.\n// For composite functions:\n// [ text-size(lowerZoomStop, feature),\n//   text-size(upperZoomStop, feature) ]\nuniform bool u_is_size_zoom_constant;\nuniform bool u_is_size_feature_constant;\nuniform highp float u_size_t; // used to interpolate between zoom stops when size is a composite function\nuniform highp float u_size; // used when size is both zoom and feature constant\n\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\n\nuniform mat4 u_matrix;\nuniform mat4 u_label_plane_matrix;\nuniform mat4 u_gl_coord_matrix;\n\nuniform bool u_is_text;\nuniform bool u_pitch_with_map;\nuniform highp float u_pitch;\nuniform bool u_rotate_symbol;\nuniform highp float u_aspect_ratio;\nuniform highp float u_camera_to_center_distance;\nuniform float u_fade_change;\n\nuniform vec2 u_texsize;\n\nvarying vec2 v_data0;\nvarying vec3 v_data1;\n\nvoid main() {\n    #pragma mapbox: initialize highp vec4 fill_color\n    #pragma mapbox: initialize highp vec4 halo_color\n    #pragma mapbox: initialize lowp float opacity\n    #pragma mapbox: initialize lowp float halo_width\n    #pragma mapbox: initialize lowp float halo_blur\n\n    vec2 a_pos = a_pos_offset.xy;\n    vec2 a_offset = a_pos_offset.zw;\n\n    vec2 a_tex = a_data.xy;\n    vec2 a_size = a_data.zw;\n\n    highp float segment_angle = -a_projected_pos[2];\n    float size;\n\n    if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {\n        size = mix(a_size[0], a_size[1], u_size_t) / 10.0;\n    } else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {\n        size = a_size[0] / 10.0;\n    } else if (!u_is_size_zoom_constant && u_is_size_feature_constant) {\n        size = u_size;\n    } else {\n        size = u_size;\n    }\n\n    vec4 projectedPoint = u_matrix * vec4(a_pos, 0, 1);\n    highp float camera_to_anchor_distance = projectedPoint.w;\n    // If the label is pitched with the map, layout is done in pitched space,\n    // which makes labels in the distance smaller relative to viewport space.\n    // We counteract part of that effect by multiplying by the perspective ratio.\n    // If the label isn't pitched with the map, we do layout in viewport space,\n    // which makes labels in the distance larger relative to the features around\n    // them. We counteract part of that effect by dividing by the perspective ratio.\n    highp float distance_ratio = u_pitch_with_map ?\n        camera_to_anchor_distance / u_camera_to_center_distance :\n        u_camera_to_center_distance / camera_to_anchor_distance;\n    highp float perspective_ratio = clamp(\n        0.5 + 0.5 * distance_ratio,\n        0.0, // Prevents oversized near-field symbols in pitched/overzoomed tiles\n        4.0);\n\n    size *= perspective_ratio;\n\n    float fontScale = u_is_text ? size / 24.0 : size;\n\n    highp float symbol_rotation = 0.0;\n    if (u_rotate_symbol) {\n        // Point labels with 'rotation-alignment: map' are horizontal with respect to tile units\n        // To figure out that angle in projected space, we draw a short horizontal line in tile\n        // space, project it, and measure its angle in projected space.\n        vec4 offsetProjectedPoint = u_matrix * vec4(a_pos + vec2(1, 0), 0, 1);\n\n        vec2 a = projectedPoint.xy / projectedPoint.w;\n        vec2 b = offsetProjectedPoint.xy / offsetProjectedPoint.w;\n\n        symbol_rotation = atan((b.y - a.y) / u_aspect_ratio, b.x - a.x);\n    }\n\n    highp float angle_sin = sin(segment_angle + symbol_rotation);\n    highp float angle_cos = cos(segment_angle + symbol_rotation);\n    mat2 rotation_matrix = mat2(angle_cos, -1.0 * angle_sin, angle_sin, angle_cos);\n\n    vec4 projected_pos = u_label_plane_matrix * vec4(a_projected_pos.xy, 0.0, 1.0);\n    gl_Position = u_gl_coord_matrix * vec4(projected_pos.xy / projected_pos.w + rotation_matrix * (a_offset / 32.0 * fontScale), 0.0, 1.0);\n    float gamma_scale = gl_Position.w;\n\n    vec2 tex = a_tex / u_texsize;\n    vec2 fade_opacity = unpack_opacity(a_fade_opacity);\n    float fade_change = fade_opacity[1] > 0.5 ? u_fade_change : -u_fade_change;\n    float interpolated_fade_opacity = max(0.0, min(1.0, fade_opacity[0] + fade_change));\n\n    v_data0 = vec2(tex.x, tex.y);\n    v_data1 = vec3(gamma_scale, size, interpolated_fade_opacity);\n}\n"}},tr=/#pragma mapbox: ([\w]+) ([\w]+) ([\w]+) ([\w]+)/g,er=function(t){var e=Qe[t],r={};e.fragmentSource=e.fragmentSource.replace(tr,function(t,e,n,i,a){return r[a]=!0,"define"===e?"\n#ifndef HAS_UNIFORM_u_"+a+"\nvarying "+n+" "+i+" "+a+";\n#else\nuniform "+n+" "+i+" u_"+a+";\n#endif\n":"\n#ifdef HAS_UNIFORM_u_"+a+"\n    "+n+" "+i+" "+a+" = u_"+a+";\n#endif\n"}),e.vertexSource=e.vertexSource.replace(tr,function(t,e,n,i,a){var o="float"===i?"vec2":"vec4";return r[a]?"define"===e?"\n#ifndef HAS_UNIFORM_u_"+a+"\nuniform lowp float a_"+a+"_t;\nattribute "+n+" "+o+" a_"+a+";\nvarying "+n+" "+i+" "+a+";\n#else\nuniform "+n+" "+i+" u_"+a+";\n#endif\n":"\n#ifndef HAS_UNIFORM_u_"+a+"\n    "+a+" = unpack_mix_"+o+"(a_"+a+", a_"+a+"_t);\n#else\n    "+n+" "+i+" "+a+" = u_"+a+";\n#endif\n":"define"===e?"\n#ifndef HAS_UNIFORM_u_"+a+"\nuniform lowp float a_"+a+"_t;\nattribute "+n+" "+o+" a_"+a+";\n#else\nuniform "+n+" "+i+" u_"+a+";\n#endif\n":"\n#ifndef HAS_UNIFORM_u_"+a+"\n    "+n+" "+i+" "+a+" = unpack_mix_"+o+"(a_"+a+", a_"+a+"_t);\n#else\n    "+n+" "+i+" "+a+" = u_"+a+";\n#endif\n"})};for(var rr in Qe)er(rr);var nr=Qe,ir=function(t,e,r,n){var i=t.gl;this.program=i.createProgram();var o=r.defines().concat("#define DEVICE_PIXEL_RATIO "+a.devicePixelRatio.toFixed(1));n&&o.push("#define OVERDRAW_INSPECTOR;");var s=o.concat(nr.prelude.fragmentSource,e.fragmentSource).join("\n"),l=o.concat(nr.prelude.vertexSource,e.vertexSource).join("\n"),c=i.createShader(i.FRAGMENT_SHADER);i.shaderSource(c,s),i.compileShader(c),i.attachShader(this.program,c);var u=i.createShader(i.VERTEX_SHADER);i.shaderSource(u,l),i.compileShader(u),i.attachShader(this.program,u);for(var f=r.layoutAttributes||[],h=0;h<f.length;h++)i.bindAttribLocation(this.program,h,f[h].name);i.linkProgram(this.program),this.numAttributes=i.getProgramParameter(this.program,i.ACTIVE_ATTRIBUTES),this.attributes={},this.uniforms={};for(var p=0;p<this.numAttributes;p++){var d=i.getActiveAttrib(this.program,p);d&&(this.attributes[d.name]=i.getAttribLocation(this.program,d.name))}for(var g=i.getProgramParameter(this.program,i.ACTIVE_UNIFORMS),v=0;v<g;v++){var m=i.getActiveUniform(this.program,v);m&&(this.uniforms[m.name]=i.getUniformLocation(this.program,m.name))}};function ar(e,r,n,i,a){for(var o=0;o<n.length;o++){var s=n[o];if(i.isLessThan(s.tileID))break;if(r.key===s.tileID.key)return;if(s.tileID.isChildOf(r)){for(var l=r.children(1/0),c=0;c<l.length;c++)ar(e,l[c],n.slice(o),i,a);return}}var u=r.overscaledZ-e.overscaledZ,f=new t.CanonicalTileID(u,r.canonical.x-(e.canonical.x<<u),r.canonical.y-(e.canonical.y<<u));a[f.key]=a[f.key]||f}function or(t,e,r,n,i){var a=t.context,o=a.gl,s=i?t.useProgram("collisionCircle"):t.useProgram("collisionBox");a.setDepthMode(Ht.disabled),a.setStencilMode(qt.disabled),a.setColorMode(t.colorModeForRenderPass());for(var l=0;l<n.length;l++){var c=n[l],u=e.getTile(c),f=u.getBucket(r);if(f){var h=i?f.collisionCircle:f.collisionBox;if(h){o.uniformMatrix4fv(s.uniforms.u_matrix,!1,c.posMatrix),i||a.lineWidth.set(1),o.uniform1f(s.uniforms.u_camera_to_center_distance,t.transform.cameraToCenterDistance);var p=Me(u,1,t.transform.zoom),d=Math.pow(2,t.transform.zoom-u.tileID.overscaledZ);o.uniform1f(s.uniforms.u_pixels_to_tile_units,p),o.uniform2f(s.uniforms.u_extrude_scale,t.transform.pixelsToGLUnits[0]/(p*d),t.transform.pixelsToGLUnits[1]/(p*d)),o.uniform1f(s.uniforms.u_overscale_factor,u.tileID.overscaleFactor()),s.draw(a,i?o.TRIANGLES:o.LINES,r.id,h.layoutVertexBuffer,h.indexBuffer,h.segments,null,h.collisionVertexBuffer,null)}}}}ir.prototype.draw=function(t,e,r,n,i,a,o,s,l){for(var c,u=t.gl,f=(c={},c[u.LINES]=2,c[u.TRIANGLES]=3,c)[e],h=0,p=a.get();h<p.length;h+=1){var d=p[h],g=d.vaos||(d.vaos={});(g[r]||(g[r]=new Q)).bind(t,this,n,o?o.getPaintVertexBuffers():[],i,d.vertexOffset,s,l),u.drawElements(e,d.primitiveLength*f,u.UNSIGNED_SHORT,d.primitiveOffset*f*2)}};var sr=t.mat4.identity(new Float32Array(16)),lr=t.default$19.layout;function cr(t,e,r,n,i,a,o,s,l,c){var u,f=t.context,h=f.gl,p=t.transform,d="map"===s,g="map"===l,v=d&&"line"===r.layout.get("symbol-placement"),m=d&&!g&&!v,y=g;f.setDepthMode(y?t.depthModeForSublayer(0,Ht.ReadOnly):Ht.disabled);for(var x=0,b=n;x<b.length;x+=1){var _=b[x],w=e.getTile(_),k=w.getBucket(r);if(k){var T=i?k.text:k.icon;if(T&&T.segments.get().length){var A=T.programConfigurations.get(r.id),M=i||k.sdfIcons,S=i?k.textSizeData:k.iconSizeData;if(u||(u=t.useProgram(M?"symbolSDF":"symbolIcon",A),A.setUniforms(t.context,u,r.paint,{zoom:t.transform.zoom}),ur(u,t,r,i,m,g,S)),f.activeTexture.set(h.TEXTURE0),h.uniform1i(u.uniforms.u_texture,0),i)w.glyphAtlasTexture.bind(h.LINEAR,h.CLAMP_TO_EDGE),h.uniform2fv(u.uniforms.u_texsize,w.glyphAtlasTexture.size);else{var E=1!==r.layout.get("icon-size").constantOr(0)||k.iconsNeedLinear,C=g||0!==p.pitch;w.iconAtlasTexture.bind(M||t.options.rotating||t.options.zooming||E||C?h.LINEAR:h.NEAREST,h.CLAMP_TO_EDGE),h.uniform2fv(u.uniforms.u_texsize,w.iconAtlasTexture.size)}h.uniformMatrix4fv(u.uniforms.u_matrix,!1,t.translatePosMatrix(_.posMatrix,w,a,o));var L=Me(w,1,t.transform.zoom),z=fe(_.posMatrix,g,d,t.transform,L),O=he(_.posMatrix,g,d,t.transform,L);h.uniformMatrix4fv(u.uniforms.u_gl_coord_matrix,!1,t.translatePosMatrix(O,w,a,o,!0)),v?(h.uniformMatrix4fv(u.uniforms.u_label_plane_matrix,!1,sr),ge(k,_.posMatrix,t,i,z,O,g,c)):h.uniformMatrix4fv(u.uniforms.u_label_plane_matrix,!1,z),h.uniform1f(u.uniforms.u_fade_change,t.options.fadeDuration?t.symbolFadeChange:1),fr(u,A,t,r,w,T,i,M,g)}}}}function ur(e,r,n,i,a,o,s){var l=r.context.gl,c=r.transform;l.uniform1i(e.uniforms.u_pitch_with_map,o?1:0),l.uniform1f(e.uniforms.u_is_text,i?1:0),l.uniform1f(e.uniforms.u_pitch,c.pitch/360*2*Math.PI);var u="constant"===s.functionType||"source"===s.functionType,f="constant"===s.functionType||"camera"===s.functionType;l.uniform1i(e.uniforms.u_is_size_zoom_constant,u?1:0),l.uniform1i(e.uniforms.u_is_size_feature_constant,f?1:0),l.uniform1f(e.uniforms.u_camera_to_center_distance,c.cameraToCenterDistance);var h=t.evaluateSizeForZoom(s,c.zoom,lr.properties[i?"text-size":"icon-size"]);void 0!==h.uSizeT&&l.uniform1f(e.uniforms.u_size_t,h.uSizeT),void 0!==h.uSize&&l.uniform1f(e.uniforms.u_size,h.uSize),l.uniform1f(e.uniforms.u_aspect_ratio,c.width/c.height),l.uniform1i(e.uniforms.u_rotate_symbol,a?1:0)}function fr(t,e,r,n,i,a,o,s,l){var c=r.context,u=c.gl,f=r.transform;if(s){var h=0!==n.paint.get(o?"text-halo-width":"icon-halo-width").constantOr(1),p=l?Math.cos(f._pitch)*f.cameraToCenterDistance:1;u.uniform1f(t.uniforms.u_gamma_scale,p),h&&(u.uniform1f(t.uniforms.u_is_halo,1),hr(a,n,c,t)),u.uniform1f(t.uniforms.u_is_halo,0)}hr(a,n,c,t)}function hr(t,e,r,n){n.draw(r,r.gl.TRIANGLES,e.id,t.layoutVertexBuffer,t.indexBuffer,t.segments,t.programConfigurations.get(e.id),t.dynamicLayoutVertexBuffer,t.opacityVertexBuffer)}function pr(t,e,r,n,i,o,s,l,c){var u,f,h,p,d=e.context,g=d.gl,v=i.paint.get("line-dasharray"),m=i.paint.get("line-pattern");if(l||c){var y=1/Me(r,1,e.transform.tileZoom);if(v){u=e.lineAtlas.getDash(v.from,"round"===i.layout.get("line-cap")),f=e.lineAtlas.getDash(v.to,"round"===i.layout.get("line-cap"));var x=u.width*v.fromScale,b=f.width*v.toScale;g.uniform2f(t.uniforms.u_patternscale_a,y/x,-u.height/2),g.uniform2f(t.uniforms.u_patternscale_b,y/b,-f.height/2),g.uniform1f(t.uniforms.u_sdfgamma,e.lineAtlas.width/(256*Math.min(x,b)*a.devicePixelRatio)/2)}else if(m){if(h=e.imageManager.getPattern(m.from),p=e.imageManager.getPattern(m.to),!h||!p)return;g.uniform2f(t.uniforms.u_pattern_size_a,h.displaySize[0]*m.fromScale/y,h.displaySize[1]),g.uniform2f(t.uniforms.u_pattern_size_b,p.displaySize[0]*m.toScale/y,p.displaySize[1]);var _=e.imageManager.getPixelSize(),w=_.width,k=_.height;g.uniform2fv(t.uniforms.u_texsize,[w,k])}g.uniform2f(t.uniforms.u_gl_units_to_pixels,1/e.transform.pixelsToGLUnits[0],1/e.transform.pixelsToGLUnits[1])}l&&(v?(g.uniform1i(t.uniforms.u_image,0),d.activeTexture.set(g.TEXTURE0),e.lineAtlas.bind(d),g.uniform1f(t.uniforms.u_tex_y_a,u.y),g.uniform1f(t.uniforms.u_tex_y_b,f.y),g.uniform1f(t.uniforms.u_mix,v.t)):m&&(g.uniform1i(t.uniforms.u_image,0),d.activeTexture.set(g.TEXTURE0),e.imageManager.bind(d),g.uniform2fv(t.uniforms.u_pattern_tl_a,h.tl),g.uniform2fv(t.uniforms.u_pattern_br_a,h.br),g.uniform2fv(t.uniforms.u_pattern_tl_b,p.tl),g.uniform2fv(t.uniforms.u_pattern_br_b,p.br),g.uniform1f(t.uniforms.u_fade,m.t))),d.setStencilMode(e.stencilModeForClipping(o));var T=e.translatePosMatrix(o.posMatrix,r,i.paint.get("line-translate"),i.paint.get("line-translate-anchor"));if(g.uniformMatrix4fv(t.uniforms.u_matrix,!1,T),g.uniform1f(t.uniforms.u_ratio,1/Me(r,1,e.transform.zoom)),i.paint.get("line-gradient")){d.activeTexture.set(g.TEXTURE0);var A=i.gradientTexture;if(!i.gradient)return;A||(A=i.gradientTexture=new z(d,i.gradient,g.RGBA)),A.bind(g.LINEAR,g.CLAMP_TO_EDGE),g.uniform1i(t.uniforms.u_image,0)}t.draw(d,g.TRIANGLES,i.id,n.layoutVertexBuffer,n.indexBuffer,n.segments,s)}var dr=function(t,e){if(!t)return!1;var r=e.imageManager.getPattern(t.from),n=e.imageManager.getPattern(t.to);return!r||!n},gr=function(t,e,r){var n=e.context,i=n.gl,a=e.imageManager.getPattern(t.from),o=e.imageManager.getPattern(t.to);i.uniform1i(r.uniforms.u_image,0),i.uniform2fv(r.uniforms.u_pattern_tl_a,a.tl),i.uniform2fv(r.uniforms.u_pattern_br_a,a.br),i.uniform2fv(r.uniforms.u_pattern_tl_b,o.tl),i.uniform2fv(r.uniforms.u_pattern_br_b,o.br);var s=e.imageManager.getPixelSize(),l=s.width,c=s.height;i.uniform2fv(r.uniforms.u_texsize,[l,c]),i.uniform1f(r.uniforms.u_mix,t.t),i.uniform2fv(r.uniforms.u_pattern_size_a,a.displaySize),i.uniform2fv(r.uniforms.u_pattern_size_b,o.displaySize),i.uniform1f(r.uniforms.u_scale_a,t.fromScale),i.uniform1f(r.uniforms.u_scale_b,t.toScale),n.activeTexture.set(i.TEXTURE0),e.imageManager.bind(e.context)},vr=function(t,e,r){var n=e.context.gl;n.uniform1f(r.uniforms.u_tile_units_to_pixels,1/Me(t,1,e.transform.tileZoom));var i=Math.pow(2,t.tileID.overscaledZ),a=t.tileSize*Math.pow(2,e.transform.tileZoom)/i,o=a*(t.tileID.canonical.x+t.tileID.wrap*i),s=a*t.tileID.canonical.y;n.uniform2f(r.uniforms.u_pixel_coord_upper,o>>16,s>>16),n.uniform2f(r.uniforms.u_pixel_coord_lower,65535&o,65535&s)};function mr(t,e,r,n,i){if(!dr(r.paint.get("fill-pattern"),t))for(var a=!0,o=0,s=n;o<s.length;o+=1){var l=s[o],c=e.getTile(l),u=c.getBucket(r);u&&(t.context.setStencilMode(t.stencilModeForClipping(l)),i(t,e,r,c,l,u,a),a=!1)}}function yr(t,e,r,n,i,a,o){var s=t.context.gl,l=a.programConfigurations.get(r.id);br("fill",r.paint.get("fill-pattern"),t,l,r,n,i,o).draw(t.context,s.TRIANGLES,r.id,a.layoutVertexBuffer,a.indexBuffer,a.segments,l)}function xr(t,e,r,n,i,a,o){var s=t.context.gl,l=a.programConfigurations.get(r.id),c=br("fillOutline",r.getPaintProperty("fill-outline-color")?null:r.paint.get("fill-pattern"),t,l,r,n,i,o);s.uniform2f(c.uniforms.u_world,s.drawingBufferWidth,s.drawingBufferHeight),c.draw(t.context,s.LINES,r.id,a.layoutVertexBuffer,a.indexBuffer2,a.segments2,l)}function br(t,e,r,n,i,a,o,s){var l,c=r.context.program.get();return e?(l=r.useProgram(t+"Pattern",n),(s||l.program!==c)&&(n.setUniforms(r.context,l,i.paint,{zoom:r.transform.zoom}),gr(e,r,l)),vr(a,r,l)):(l=r.useProgram(t,n),(s||l.program!==c)&&n.setUniforms(r.context,l,i.paint,{zoom:r.transform.zoom})),r.context.gl.uniformMatrix4fv(l.uniforms.u_matrix,!1,r.translatePosMatrix(o.posMatrix,a,i.paint.get("fill-translate"),i.paint.get("fill-translate-anchor"))),l}var _r=t.default$20.mat3,wr=t.default$20.mat4,kr=t.default$20.vec3;function Tr(t,e,r,n,i,a,o){var s=t.context,l=s.gl,c=r.paint.get("fill-extrusion-pattern"),u=t.context.program.get(),f=a.programConfigurations.get(r.id),h=t.useProgram(c?"fillExtrusionPattern":"fillExtrusion",f);if((o||h.program!==u)&&f.setUniforms(s,h,r.paint,{zoom:t.transform.zoom}),c){if(dr(c,t))return;gr(c,t,h),vr(n,t,h),l.uniform1f(h.uniforms.u_height_factor,-Math.pow(2,i.overscaledZ)/n.tileSize/8)}t.context.gl.uniformMatrix4fv(h.uniforms.u_matrix,!1,t.translatePosMatrix(i.posMatrix,n,r.paint.get("fill-extrusion-translate"),r.paint.get("fill-extrusion-translate-anchor"))),function(t,e){var r=e.context.gl,n=e.style.light,i=n.properties.get("position"),a=[i.x,i.y,i.z],o=_r.create();"viewport"===n.properties.get("anchor")&&_r.fromRotation(o,-e.transform.angle),kr.transformMat3(a,a,o);var s=n.properties.get("color");r.uniform3fv(t.uniforms.u_lightpos,a),r.uniform1f(t.uniforms.u_lightintensity,n.properties.get("intensity")),r.uniform3f(t.uniforms.u_lightcolor,s.r,s.g,s.b)}(h,t),h.draw(s,l.TRIANGLES,r.id,a.layoutVertexBuffer,a.indexBuffer,a.segments,f)}function Ar(e,r,n){var i=e.context,a=i.gl,o=r.fbo;if(o){var s=e.useProgram("hillshade"),l=e.transform.calculatePosMatrix(r.tileID.toUnwrapped(),!0);!function(t,e,r){var n=r.paint.get("hillshade-illumination-direction")*(Math.PI/180);"viewport"===r.paint.get("hillshade-illumination-anchor")&&(n-=e.transform.angle),e.context.gl.uniform2f(t.uniforms.u_light,r.paint.get("hillshade-exaggeration"),n)}(s,e,n);var c=function(e,r){var n=r.toCoordinate(),i=new t.default$17(n.column,n.row+1,n.zoom);return[e.transform.coordinateLocation(n).lat,e.transform.coordinateLocation(i).lat]}(e,r.tileID);i.activeTexture.set(a.TEXTURE0),a.bindTexture(a.TEXTURE_2D,o.colorAttachment.get()),a.uniformMatrix4fv(s.uniforms.u_matrix,!1,l),a.uniform2fv(s.uniforms.u_latrange,c),a.uniform1i(s.uniforms.u_image,0);var u=n.paint.get("hillshade-shadow-color");a.uniform4f(s.uniforms.u_shadow,u.r,u.g,u.b,u.a);var f=n.paint.get("hillshade-highlight-color");a.uniform4f(s.uniforms.u_highlight,f.r,f.g,f.b,f.a);var h=n.paint.get("hillshade-accent-color");if(a.uniform4f(s.uniforms.u_accent,h.r,h.g,h.b,h.a),r.maskedBoundsBuffer&&r.maskedIndexBuffer&&r.segments)s.draw(i,a.TRIANGLES,n.id,r.maskedBoundsBuffer,r.maskedIndexBuffer,r.segments);else{var p=e.rasterBoundsBuffer;e.rasterBoundsVAO.bind(i,s,p,[]),a.drawArrays(a.TRIANGLE_STRIP,0,p.length)}}}function Mr(e,r,n){var i=e.context,a=i.gl;if(r.dem&&r.dem.level){var o=r.dem.level.dim,s=r.dem.getPixels();if(i.activeTexture.set(a.TEXTURE1),i.pixelStoreUnpackPremultiplyAlpha.set(!1),r.demTexture=r.demTexture||e.getTileTexture(r.tileSize),r.demTexture){var l=r.demTexture;l.update(s,{premultiply:!1}),l.bind(a.NEAREST,a.CLAMP_TO_EDGE)}else r.demTexture=new z(i,s,a.RGBA,{premultiply:!1}),r.demTexture.bind(a.NEAREST,a.CLAMP_TO_EDGE);i.activeTexture.set(a.TEXTURE0);var c=r.fbo;if(!c){var u=new z(i,{width:o,height:o,data:null},a.RGBA);u.bind(a.LINEAR,a.CLAMP_TO_EDGE),(c=r.fbo=i.createFramebuffer(o,o)).colorAttachment.set(u.texture)}i.bindFramebuffer.set(c.framebuffer),i.viewport.set([0,0,o,o]);var f=t.mat4.create();t.mat4.ortho(f,0,t.default$8,-t.default$8,0,0,1),t.mat4.translate(f,f,[0,-t.default$8,0]);var h=e.useProgram("hillshadePrepare");a.uniformMatrix4fv(h.uniforms.u_matrix,!1,f),a.uniform1f(h.uniforms.u_zoom,r.tileID.overscaledZ),a.uniform2fv(h.uniforms.u_dimension,[2*o,2*o]),a.uniform1i(h.uniforms.u_image,1),a.uniform1f(h.uniforms.u_maxzoom,n);var p=e.rasterBoundsBuffer;e.rasterBoundsVAO.bind(i,h,p,[]),a.drawArrays(a.TRIANGLE_STRIP,0,p.length),r.needsHillshadePrepare=!1}}function Sr(e,r,n,i,o){var s=i.paint.get("raster-fade-duration");if(s>0){var l=a.now(),c=(l-e.timeAdded)/s,u=r?(l-r.timeAdded)/s:-1,f=n.getSource(),h=o.coveringZoomLevel({tileSize:f.tileSize,roundZoom:f.roundZoom}),p=!r||Math.abs(r.tileID.overscaledZ-h)>Math.abs(e.tileID.overscaledZ-h),d=p&&e.refreshedUponExpiration?1:t.clamp(p?c:1-u,0,1);return e.refreshedUponExpiration&&c>=1&&(e.refreshedUponExpiration=!1),r?{opacity:1,mix:1-d}:{opacity:d,mix:0}}return{opacity:1,mix:0}}function Er(e,r,n){var i=e.context,o=i.gl;i.lineWidth.set(1*a.devicePixelRatio);var s=n.posMatrix,l=e.useProgram("debug");i.setDepthMode(Ht.disabled),i.setStencilMode(qt.disabled),i.setColorMode(e.colorModeForRenderPass()),o.uniformMatrix4fv(l.uniforms.u_matrix,!1,s),o.uniform4f(l.uniforms.u_color,1,0,0,1),e.debugVAO.bind(i,l,e.debugBuffer,[]),o.drawArrays(o.LINE_STRIP,0,e.debugBuffer.length);for(var c=function(t,e,r,n){n=n||1;var i,a,o,s,l,c,u,f,h=[];for(i=0,a=t.length;i<a;i++)if(l=Cr[t[i]]){for(f=null,o=0,s=l[1].length;o<s;o+=2)-1===l[1][o]&&-1===l[1][o+1]?f=null:(c=e+l[1][o]*n,u=200-l[1][o+1]*n,f&&h.push(f.x,f.y,c,u),f={x:c,y:u});e+=l[0]*n}return h}(n.toString(),50,0,5),u=new t.PosArray,f=0;f<c.length;f+=2)u.emplaceBack(c[f],c[f+1]);var h=i.createVertexBuffer(u,Ke.members);(new Q).bind(i,l,h,[]),o.uniform4f(l.uniforms.u_color,1,1,1,1);for(var p=r.getTile(n).tileSize,d=t.default$8/(Math.pow(2,e.transform.zoom-n.overscaledZ)*p),g=[[-1,-1],[-1,1],[1,-1],[1,1]],v=0;v<g.length;v++){var m=g[v];o.uniformMatrix4fv(l.uniforms.u_matrix,!1,t.mat4.translate([],s,[d*m[0],d*m[1],0])),o.drawArrays(o.LINES,0,h.length)}o.uniform4f(l.uniforms.u_color,0,0,0,1),o.uniformMatrix4fv(l.uniforms.u_matrix,!1,s),o.drawArrays(o.LINES,0,h.length)}var Cr={" 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h=e.context.program.get(),p=f.programConfigurations.get(n.id),d=e.useProgram("heatmap",p),g=e.transform.zoom;(s||d.program!==h)&&(p.setUniforms(e.context,d,n.paint,{zoom:g}),s=!1),o.uniform1f(d.uniforms.u_extrude_scale,Me(u,1,g)),o.uniform1f(d.uniforms.u_intensity,n.paint.get("heatmap-intensity")),o.uniformMatrix4fv(d.uniforms.u_matrix,!1,c.posMatrix),d.draw(a,o.TRIANGLES,n.id,f.layoutVertexBuffer,f.indexBuffer,f.segments,p)}}}a.viewport.set([0,0,e.width,e.height])}else"translucent"===e.renderPass&&(e.context.setColorMode(e.colorModeForRenderPass()),function(e,r){var n=e.context,i=n.gl,a=r.heatmapFbo;if(a){n.activeTexture.set(i.TEXTURE0),i.bindTexture(i.TEXTURE_2D,a.colorAttachment.get()),n.activeTexture.set(i.TEXTURE1);var o=r.colorRampTexture;o||(o=r.colorRampTexture=new z(n,r.colorRamp,i.RGBA)),o.bind(i.LINEAR,i.CLAMP_TO_EDGE),n.setDepthMode(Ht.disabled);var s=e.useProgram("heatmapTexture"),l=r.paint.get("heatmap-opacity");i.uniform1f(s.uniforms.u_opacity,l),i.uniform1i(s.uniforms.u_image,0),i.uniform1i(s.uniforms.u_color_ramp,1);var c=t.mat4.create();t.mat4.ortho(c,0,e.width,e.height,0,0,1),i.uniformMatrix4fv(s.uniforms.u_matrix,!1,c),i.uniform2f(s.uniforms.u_world,i.drawingBufferWidth,i.drawingBufferHeight),e.viewportVAO.bind(e.context,s,e.viewportBuffer,[]),i.drawArrays(i.TRIANGLE_STRIP,0,4)}}(e,n))},line:function(t,e,r,n){if("translucent"===t.renderPass&&0!==r.paint.get("line-opacity").constantOr(1)){var i=t.context;i.setDepthMode(t.depthModeForSublayer(0,Ht.ReadOnly)),i.setColorMode(t.colorModeForRenderPass());for(var a,o=r.paint.get("line-dasharray")?"lineSDF":r.paint.get("line-pattern")?"linePattern":r.paint.get("line-gradient")?"lineGradient":"line",s=!0,l=0,c=n;l<c.length;l+=1){var u=c[l],f=e.getTile(u),h=f.getBucket(r);if(h){var p=h.programConfigurations.get(r.id),d=t.context.program.get(),g=t.useProgram(o,p),v=s||g.program!==d,m=a!==f.tileID.overscaledZ;v&&p.setUniforms(t.context,g,r.paint,{zoom:t.transform.zoom}),pr(g,t,f,h,r,u,p,v,m),a=f.tileID.overscaledZ,s=!1}}}},fill:function(e,r,n,i){var a=n.paint.get("fill-color"),o=n.paint.get("fill-opacity");if(0!==o.constantOr(1)){var s=e.context;s.setColorMode(e.colorModeForRenderPass());var l=n.paint.get("fill-pattern")||1!==a.constantOr(t.default$6.transparent).a||1!==o.constantOr(0)?"translucent":"opaque";e.renderPass===l&&(s.setDepthMode(e.depthModeForSublayer(1,"opaque"===e.renderPass?Ht.ReadWrite:Ht.ReadOnly)),mr(e,r,n,i,yr)),"translucent"===e.renderPass&&n.paint.get("fill-antialias")&&(s.lineWidth.set(2),s.setDepthMode(e.depthModeForSublayer(n.getPaintProperty("fill-outline-color")?2:0,Ht.ReadOnly)),mr(e,r,n,i,xr))}},"fill-extrusion":function(e,r,n,i){if(0!==n.paint.get("fill-extrusion-opacity"))if("offscreen"===e.renderPass){!function(e,r){var n=e.context,i=n.gl,a=r.viewportFrame;if(e.depthRboNeedsClear&&e.setupOffscreenDepthRenderbuffer(),!a){var o=new z(n,{width:e.width,height:e.height,data:null},i.RGBA);o.bind(i.LINEAR,i.CLAMP_TO_EDGE),(a=r.viewportFrame=n.createFramebuffer(e.width,e.height)).colorAttachment.set(o.texture)}n.bindFramebuffer.set(a.framebuffer),a.depthAttachment.set(e.depthRbo),e.depthRboNeedsClear&&(n.clear({depth:1}),e.depthRboNeedsClear=!1),n.clear({color:t.default$6.transparent}),n.setStencilMode(qt.disabled),n.setDepthMode(new Ht(i.LEQUAL,Ht.ReadWrite,[0,1])),n.setColorMode(e.colorModeForRenderPass())}(e,n);for(var a=!0,o=0,s=i;o<s.length;o+=1){var l=s[o],c=r.getTile(l),u=c.getBucket(n);u&&(Tr(e,0,n,c,l,u,a),a=!1)}}else"translucent"===e.renderPass&&function(t,e){var r=e.viewportFrame;if(r){var n=t.context,i=n.gl,a=t.useProgram("extrusionTexture");n.setStencilMode(qt.disabled),n.setDepthMode(Ht.disabled),n.setColorMode(t.colorModeForRenderPass()),n.activeTexture.set(i.TEXTURE0),i.bindTexture(i.TEXTURE_2D,r.colorAttachment.get()),i.uniform1f(a.uniforms.u_opacity,e.paint.get("fill-extrusion-opacity")),i.uniform1i(a.uniforms.u_image,0);var o=wr.create();wr.ortho(o,0,t.width,t.height,0,0,1),i.uniformMatrix4fv(a.uniforms.u_matrix,!1,o),i.uniform2f(a.uniforms.u_world,i.drawingBufferWidth,i.drawingBufferHeight),t.viewportVAO.bind(n,a,t.viewportBuffer,[]),i.drawArrays(i.TRIANGLE_STRIP,0,4)}}(e,n)},hillshade:function(t,e,r,n){if("offscreen"===t.renderPass||"translucent"===t.renderPass){var i=t.context,a=e.getSource().maxzoom;i.setDepthMode(t.depthModeForSublayer(0,Ht.ReadOnly)),i.setStencilMode(qt.disabled),i.setColorMode(t.colorModeForRenderPass());for(var o=0,s=n;o<s.length;o+=1){var l=s[o],c=e.getTile(l);c.needsHillshadePrepare&&"offscreen"===t.renderPass?Mr(t,c,a):"translucent"===t.renderPass&&Ar(t,c,r)}i.viewport.set([0,0,t.width,t.height])}},raster:function(t,e,r,n){if("translucent"===t.renderPass&&0!==r.paint.get("raster-opacity")){var i,a,o=t.context,s=o.gl,l=e.getSource(),c=t.useProgram("raster");o.setStencilMode(qt.disabled),o.setColorMode(t.colorModeForRenderPass()),s.uniform1f(c.uniforms.u_brightness_low,r.paint.get("raster-brightness-min")),s.uniform1f(c.uniforms.u_brightness_high,r.paint.get("raster-brightness-max")),s.uniform1f(c.uniforms.u_saturation_factor,(i=r.paint.get("raster-saturation"))>0?1-1/(1.001-i):-i),s.uniform1f(c.uniforms.u_contrast_factor,(a=r.paint.get("raster-contrast"))>0?1/(1-a):1+a),s.uniform3fv(c.uniforms.u_spin_weights,function(t){t*=Math.PI/180;var e=Math.sin(t),r=Math.cos(t);return[(2*r+1)/3,(-Math.sqrt(3)*e-r+1)/3,(Math.sqrt(3)*e-r+1)/3]}(r.paint.get("raster-hue-rotate"))),s.uniform1f(c.uniforms.u_buffer_scale,1),s.uniform1i(c.uniforms.u_image0,0),s.uniform1i(c.uniforms.u_image1,1);for(var u=n.length&&n[0].overscaledZ,f=0,h=n;f<h.length;f+=1){var p=h[f];o.setDepthMode(t.depthModeForSublayer(p.overscaledZ-u,1===r.paint.get("raster-opacity")?Ht.ReadWrite:Ht.ReadOnly,s.LESS));var d=e.getTile(p),g=t.transform.calculatePosMatrix(p.toUnwrapped(),!0);d.registerFadeDuration(r.paint.get("raster-fade-duration")),s.uniformMatrix4fv(c.uniforms.u_matrix,!1,g);var v=e.findLoadedParent(p,0,{}),m=Sr(d,v,e,r,t.transform),y=void 0,x=void 0;if(o.activeTexture.set(s.TEXTURE0),d.texture.bind(s.LINEAR,s.CLAMP_TO_EDGE,s.LINEAR_MIPMAP_NEAREST),o.activeTexture.set(s.TEXTURE1),v?(v.texture.bind(s.LINEAR,s.CLAMP_TO_EDGE,s.LINEAR_MIPMAP_NEAREST),y=Math.pow(2,v.tileID.overscaledZ-d.tileID.overscaledZ),x=[d.tileID.canonical.x*y%1,d.tileID.canonical.y*y%1]):d.texture.bind(s.LINEAR,s.CLAMP_TO_EDGE,s.LINEAR_MIPMAP_NEAREST),s.uniform2fv(c.uniforms.u_tl_parent,x||[0,0]),s.uniform1f(c.uniforms.u_scale_parent,y||1),s.uniform1f(c.uniforms.u_fade_t,m.mix),s.uniform1f(c.uniforms.u_opacity,m.opacity*r.paint.get("raster-opacity")),l instanceof tt){var b=l.boundsBuffer;l.boundsVAO.bind(o,c,b,[]),s.drawArrays(s.TRIANGLE_STRIP,0,b.length)}else if(d.maskedBoundsBuffer&&d.maskedIndexBuffer&&d.segments)c.draw(o,s.TRIANGLES,r.id,d.maskedBoundsBuffer,d.maskedIndexBuffer,d.segments);else{var _=t.rasterBoundsBuffer;t.rasterBoundsVAO.bind(o,c,_,[]),s.drawArrays(s.TRIANGLE_STRIP,0,_.length)}}}},background:function(t,e,r){var n=r.paint.get("background-color"),i=r.paint.get("background-opacity");if(0!==i){var a=t.context,o=a.gl,s=t.transform,l=s.tileSize,c=r.paint.get("background-pattern"),u=c||1!==n.a||1!==i?"translucent":"opaque";if(t.renderPass===u){var f;if(a.setStencilMode(qt.disabled),a.setDepthMode(t.depthModeForSublayer(0,"opaque"===u?Ht.ReadWrite:Ht.ReadOnly)),a.setColorMode(t.colorModeForRenderPass()),c){if(dr(c,t))return;f=t.useProgram("backgroundPattern"),gr(c,t,f),t.tileExtentPatternVAO.bind(a,f,t.tileExtentBuffer,[])}else f=t.useProgram("background"),o.uniform4fv(f.uniforms.u_color,[n.r,n.g,n.b,n.a]),t.tileExtentVAO.bind(a,f,t.tileExtentBuffer,[]);o.uniform1f(f.uniforms.u_opacity,i);for(var h=0,p=s.coveringTiles({tileSize:l});h<p.length;h+=1){var d=p[h];c&&vr({tileID:d,tileSize:l},t,f),o.uniformMatrix4fv(f.uniforms.u_matrix,!1,t.transform.calculatePosMatrix(d.toUnwrapped())),o.drawArrays(o.TRIANGLE_STRIP,0,t.tileExtentBuffer.length)}}}},debug:function(t,e,r){for(var n=0;n<r.length;n++)Er(t,e,r[n])}},zr=function(e,r){this.context=new Yt(e),this.transform=r,this._tileTextures={},this.setup(),this.numSublayers=Wt.maxUnderzooming+Wt.maxOverzooming+1,this.depthEpsilon=1/Math.pow(2,16),this.depthRboNeedsClear=!0,this.emptyProgramConfiguration=new t.default$24,this.crossTileSymbolIndex=new We};function Or(t,e){if(t.row>e.row){var r=t;t=e,e=r}return{x0:t.column,y0:t.row,x1:e.column,y1:e.row,dx:e.column-t.column,dy:e.row-t.row}}function Ir(t,e,r,n,i){var a=Math.max(r,Math.floor(e.y0)),o=Math.min(n,Math.ceil(e.y1));if(t.x0===e.x0&&t.y0===e.y0?t.x0+e.dy/t.dy*t.dx<e.x1:t.x1-e.dy/t.dy*t.dx<e.x0){var s=t;t=e,e=s}for(var l=t.dx/t.dy,c=e.dx/e.dy,u=t.dx>0,f=e.dx<0,h=a;h<o;h++){var p=l*Math.max(0,Math.min(t.dy,h+u-t.y0))+t.x0,d=c*Math.max(0,Math.min(e.dy,h+f-e.y0))+e.x0;i(Math.floor(d),Math.ceil(p),h)}}function Dr(t,e,r,n,i,a){var o,s=Or(t,e),l=Or(e,r),c=Or(r,t);s.dy>l.dy&&(o=s,s=l,l=o),s.dy>c.dy&&(o=s,s=c,c=o),l.dy>c.dy&&(o=l,l=c,c=o),s.dy&&Ir(c,s,n,i,a),l.dy&&Ir(c,l,n,i,a)}zr.prototype.resize=function(t,e){var r=this.context.gl;if(this.width=t*a.devicePixelRatio,this.height=e*a.devicePixelRatio,this.context.viewport.set([0,0,this.width,this.height]),this.style)for(var n=0,i=this.style._order;n<i.length;n+=1){var o=i[n];this.style._layers[o].resize()}this.depthRbo&&(r.deleteRenderbuffer(this.depthRbo),this.depthRbo=null)},zr.prototype.setup=function(){var e=this.context,r=new t.PosArray;r.emplaceBack(0,0),r.emplaceBack(t.default$8,0),r.emplaceBack(0,t.default$8),r.emplaceBack(t.default$8,t.default$8),this.tileExtentBuffer=e.createVertexBuffer(r,Ke.members),this.tileExtentVAO=new Q,this.tileExtentPatternVAO=new Q;var n=new t.PosArray;n.emplaceBack(0,0),n.emplaceBack(t.default$8,0),n.emplaceBack(t.default$8,t.default$8),n.emplaceBack(0,t.default$8),n.emplaceBack(0,0),this.debugBuffer=e.createVertexBuffer(n,Ke.members),this.debugVAO=new Q;var i=new t.RasterBoundsArray;i.emplaceBack(0,0,0,0),i.emplaceBack(t.default$8,0,t.default$8,0),i.emplaceBack(0,t.default$8,0,t.default$8),i.emplaceBack(t.default$8,t.default$8,t.default$8,t.default$8),this.rasterBoundsBuffer=e.createVertexBuffer(i,K.members),this.rasterBoundsVAO=new Q;var a=new t.PosArray;a.emplaceBack(0,0),a.emplaceBack(1,0),a.emplaceBack(0,1),a.emplaceBack(1,1),this.viewportBuffer=e.createVertexBuffer(a,Ke.members),this.viewportVAO=new Q},zr.prototype.clearStencil=function(){var e=this.context,r=e.gl;e.setColorMode(Gt.disabled),e.setDepthMode(Ht.disabled),e.setStencilMode(new qt({func:r.ALWAYS,mask:0},0,255,r.ZERO,r.ZERO,r.ZERO));var n=t.mat4.create();t.mat4.ortho(n,0,this.width,this.height,0,0,1),t.mat4.scale(n,n,[r.drawingBufferWidth,r.drawingBufferHeight,0]);var i=this.useProgram("clippingMask");r.uniformMatrix4fv(i.uniforms.u_matrix,!1,n),this.viewportVAO.bind(e,i,this.viewportBuffer,[]),r.drawArrays(r.TRIANGLE_STRIP,0,4)},zr.prototype._renderTileClippingMasks=function(t){var e=this.context,r=e.gl;e.setColorMode(Gt.disabled),e.setDepthMode(Ht.disabled);var n=1;this._tileClippingMaskIDs={};for(var i=0,a=t;i<a.length;i+=1){var o=a[i],s=this._tileClippingMaskIDs[o.key]=n++;e.setStencilMode(new qt({func:r.ALWAYS,mask:0},s,255,r.KEEP,r.KEEP,r.REPLACE));var l=this.useProgram("clippingMask");r.uniformMatrix4fv(l.uniforms.u_matrix,!1,o.posMatrix),this.tileExtentVAO.bind(this.context,l,this.tileExtentBuffer,[]),r.drawArrays(r.TRIANGLE_STRIP,0,this.tileExtentBuffer.length)}},zr.prototype.stencilModeForClipping=function(t){var e=this.context.gl;return new qt({func:e.EQUAL,mask:255},this._tileClippingMaskIDs[t.key],0,e.KEEP,e.KEEP,e.REPLACE)},zr.prototype.colorModeForRenderPass=function(){var e=this.context.gl;return this._showOverdrawInspector?new Gt([e.CONSTANT_COLOR,e.ONE],new t.default$6(1/8,1/8,1/8,0),[!0,!0,!0,!0]):"opaque"===this.renderPass?Gt.unblended:Gt.alphaBlended},zr.prototype.depthModeForSublayer=function(t,e,r){var n=1-((1+this.currentLayer)*this.numSublayers+t)*this.depthEpsilon,i=n-1+this.depthRange;return new Ht(r||this.context.gl.LEQUAL,e,[i,n])},zr.prototype.render=function(e,r){var n=this;for(var i in this.style=e,this.options=r,this.lineAtlas=e.lineAtlas,this.imageManager=e.imageManager,this.glyphManager=e.glyphManager,this.symbolFadeChange=e.placement.symbolFadeChange(a.now()),e.sourceCaches){var o=n.style.sourceCaches[i];o.used&&o.prepare(n.context)}var s=this.style._order,l=t.filterObject(this.style.sourceCaches,function(t){return"raster"===t.getSource().type||"raster-dem"===t.getSource().type}),c=function(e){var r=l[e];!function(e,r){for(var n=e.sort(function(t,e){return t.tileID.isLessThan(e.tileID)?-1:e.tileID.isLessThan(t.tileID)?1:0}),i=0;i<n.length;i++){var a={},o=n[i],s=n.slice(i+1);ar(o.tileID.wrapped(),o.tileID,s,new t.OverscaledTileID(0,o.tileID.wrap+1,0,0,0),a),o.setMask(a,r)}}(r.getVisibleCoordinates().map(function(t){return r.getTile(t)}),n.context)};for(var u in l)c(u);this.renderPass="offscreen";var f,h=[];this.depthRboNeedsClear=!0;for(var p=0;p<s.length;p++){var d=n.style._layers[s[p]];d.hasOffscreenPass()&&!d.isHidden(n.transform.zoom)&&(d.source!==(f&&f.id)&&(h=[],(f=n.style.sourceCaches[d.source])&&(h=f.getVisibleCoordinates()).reverse()),h.length&&n.renderLayer(n,f,d,h))}this.context.bindFramebuffer.set(null),this.context.clear({color:r.showOverdrawInspector?t.default$6.black:t.default$6.transparent,depth:1}),this._showOverdrawInspector=r.showOverdrawInspector,this.depthRange=(e._order.length+2)*this.numSublayers*this.depthEpsilon,this.renderPass="opaque";var g,v=[];for(this.currentLayer=s.length-1,this.currentLayer;this.currentLayer>=0;this.currentLayer--){var m=n.style._layers[s[n.currentLayer]];m.source!==(g&&g.id)&&(v=[],(g=n.style.sourceCaches[m.source])&&(n.clearStencil(),v=g.getVisibleCoordinates(),g.getSource().isTileClipped&&n._renderTileClippingMasks(v))),n.renderLayer(n,g,m,v)}this.renderPass="translucent";var y,x=[];for(this.currentLayer=0,this.currentLayer;this.currentLayer<s.length;this.currentLayer++){var b=n.style._layers[s[n.currentLayer]];b.source!==(y&&y.id)&&(x=[],(y=n.style.sourceCaches[b.source])&&(n.clearStencil(),x=y.getVisibleCoordinates(),y.getSource().isTileClipped&&n._renderTileClippingMasks(x)),x.reverse()),n.renderLayer(n,y,b,x)}if(this.options.showTileBoundaries){var _=this.style.sourceCaches[Object.keys(this.style.sourceCaches)[0]];_&&Lr.debug(this,_,_.getVisibleCoordinates())}},zr.prototype.setupOffscreenDepthRenderbuffer=function(){var t=this.context;this.depthRbo||(this.depthRbo=t.createRenderbuffer(t.gl.DEPTH_COMPONENT16,this.width,this.height))},zr.prototype.renderLayer=function(t,e,r,n){r.isHidden(this.transform.zoom)||("background"===r.type||n.length)&&(this.id=r.id,Lr[r.type](t,e,r,n))},zr.prototype.translatePosMatrix=function(e,r,n,i,a){if(!n[0]&&!n[1])return e;var o=a?"map"===i?this.transform.angle:0:"viewport"===i?-this.transform.angle:0;if(o){var s=Math.sin(o),l=Math.cos(o);n=[n[0]*l-n[1]*s,n[0]*s+n[1]*l]}var c=[a?n[0]:Me(r,n[0],this.transform.zoom),a?n[1]:Me(r,n[1],this.transform.zoom),0],u=new Float32Array(16);return t.mat4.translate(u,e,c),u},zr.prototype.saveTileTexture=function(t){var e=this._tileTextures[t.size[0]];e?e.push(t):this._tileTextures[t.size[0]]=[t]},zr.prototype.getTileTexture=function(t){var e=this._tileTextures[t];return e&&e.length>0?e.pop():null},zr.prototype._createProgramCached=function(t,e){this.cache=this.cache||{};var r=""+t+(e.cacheKey||"")+(this._showOverdrawInspector?"/overdraw":"");return this.cache[r]||(this.cache[r]=new ir(this.context,nr[t],e,this._showOverdrawInspector)),this.cache[r]},zr.prototype.useProgram=function(t,e){var r=this._createProgramCached(t,e||this.emptyProgramConfiguration);return this.context.program.set(r.program),r};var Pr=t.default$20.vec4,Rr=t.default$20.mat4,Fr=t.default$20.mat2,Br=function(t,e,r){this.tileSize=512,this._renderWorldCopies=void 0===r||r,this._minZoom=t||0,this._maxZoom=e||22,this.latRange=[-85.05113,85.05113],this.width=0,this.height=0,this._center=new G(0,0),this.zoom=0,this.angle=0,this._fov=.6435011087932844,this._pitch=0,this._unmodified=!0,this._posMatrixCache={},this._alignedPosMatrixCache={}},Nr={minZoom:{configurable:!0},maxZoom:{configurable:!0},renderWorldCopies:{configurable:!0},worldSize:{configurable:!0},centerPoint:{configurable:!0},size:{configurable:!0},bearing:{configurable:!0},pitch:{configurable:!0},fov:{configurable:!0},zoom:{configurable:!0},center:{configurable:!0},unmodified:{configurable:!0},x:{configurable:!0},y:{configurable:!0},point:{configurable:!0}};Br.prototype.clone=function(){var t=new Br(this._minZoom,this._maxZoom,this._renderWorldCopies);return t.tileSize=this.tileSize,t.latRange=this.latRange,t.width=this.width,t.height=this.height,t._center=this._center,t.zoom=this.zoom,t.angle=this.angle,t._fov=this._fov,t._pitch=this._pitch,t._unmodified=this._unmodified,t._calcMatrices(),t},Nr.minZoom.get=function(){return this._minZoom},Nr.minZoom.set=function(t){this._minZoom!==t&&(this._minZoom=t,this.zoom=Math.max(this.zoom,t))},Nr.maxZoom.get=function(){return this._maxZoom},Nr.maxZoom.set=function(t){this._maxZoom!==t&&(this._maxZoom=t,this.zoom=Math.min(this.zoom,t))},Nr.renderWorldCopies.get=function(){return this._renderWorldCopies},Nr.renderWorldCopies.set=function(t){void 0===t?t=!0:null===t&&(t=!1),this._renderWorldCopies=t},Nr.worldSize.get=function(){return this.tileSize*this.scale},Nr.centerPoint.get=function(){return this.size._div(2)},Nr.size.get=function(){return new t.default$1(this.width,this.height)},Nr.bearing.get=function(){return-this.angle/Math.PI*180},Nr.bearing.set=function(e){var r=-t.wrap(e,-180,180)*Math.PI/180;this.angle!==r&&(this._unmodified=!1,this.angle=r,this._calcMatrices(),this.rotationMatrix=Fr.create(),Fr.rotate(this.rotationMatrix,this.rotationMatrix,this.angle))},Nr.pitch.get=function(){return this._pitch/Math.PI*180},Nr.pitch.set=function(e){var r=t.clamp(e,0,60)/180*Math.PI;this._pitch!==r&&(this._unmodified=!1,this._pitch=r,this._calcMatrices())},Nr.fov.get=function(){return this._fov/Math.PI*180},Nr.fov.set=function(t){t=Math.max(.01,Math.min(60,t)),this._fov!==t&&(this._unmodified=!1,this._fov=t/180*Math.PI,this._calcMatrices())},Nr.zoom.get=function(){return this._zoom},Nr.zoom.set=function(t){var e=Math.min(Math.max(t,this.minZoom),this.maxZoom);this._zoom!==e&&(this._unmodified=!1,this._zoom=e,this.scale=this.zoomScale(e),this.tileZoom=Math.floor(e),this.zoomFraction=e-this.tileZoom,this._constrain(),this._calcMatrices())},Nr.center.get=function(){return this._center},Nr.center.set=function(t){t.lat===this._center.lat&&t.lng===this._center.lng||(this._unmodified=!1,this._center=t,this._constrain(),this._calcMatrices())},Br.prototype.coveringZoomLevel=function(t){return(t.roundZoom?Math.round:Math.floor)(this.zoom+this.scaleZoom(this.tileSize/t.tileSize))},Br.prototype.getVisibleUnwrappedCoordinates=function(e){var r=this.pointCoordinate(new t.default$1(0,0),0),n=this.pointCoordinate(new t.default$1(this.width,0),0),i=Math.floor(r.column),a=Math.floor(n.column),o=[new t.UnwrappedTileID(0,e)];if(this._renderWorldCopies)for(var s=i;s<=a;s++)0!==s&&o.push(new t.UnwrappedTileID(s,e));return o},Br.prototype.coveringTiles=function(e){var r=this.coveringZoomLevel(e),n=r;if(void 0!==e.minzoom&&r<e.minzoom)return[];void 0!==e.maxzoom&&r>e.maxzoom&&(r=e.maxzoom);var i=this.pointCoordinate(this.centerPoint,r),a=new t.default$1(i.column-.5,i.row-.5);return function(e,r,n,i){void 0===i&&(i=!0);var a=1<<e,o={};function s(r,s,l){var c,u,f,h;if(l>=0&&l<=a)for(c=r;c<s;c++)u=Math.floor(c/a),f=(c%a+a)%a,0!==u&&!0!==i||(h=new t.OverscaledTileID(n,u,e,f,l),o[h.key]=h)}return Dr(r[0],r[1],r[2],0,a,s),Dr(r[2],r[3],r[0],0,a,s),Object.keys(o).map(function(t){return o[t]})}(r,[this.pointCoordinate(new t.default$1(0,0),r),this.pointCoordinate(new t.default$1(this.width,0),r),this.pointCoordinate(new t.default$1(this.width,this.height),r),this.pointCoordinate(new t.default$1(0,this.height),r)],e.reparseOverscaled?n:r,this._renderWorldCopies).sort(function(t,e){return a.dist(t.canonical)-a.dist(e.canonical)})},Br.prototype.resize=function(t,e){this.width=t,this.height=e,this.pixelsToGLUnits=[2/t,-2/e],this._constrain(),this._calcMatrices()},Nr.unmodified.get=function(){return this._unmodified},Br.prototype.zoomScale=function(t){return Math.pow(2,t)},Br.prototype.scaleZoom=function(t){return Math.log(t)/Math.LN2},Br.prototype.project=function(e){return new t.default$1(this.lngX(e.lng),this.latY(e.lat))},Br.prototype.unproject=function(t){return new G(this.xLng(t.x),this.yLat(t.y))},Nr.x.get=function(){return this.lngX(this.center.lng)},Nr.y.get=function(){return this.latY(this.center.lat)},Nr.point.get=function(){return new t.default$1(this.x,this.y)},Br.prototype.lngX=function(t){return(180+t)*this.worldSize/360},Br.prototype.latY=function(t){return(180-180/Math.PI*Math.log(Math.tan(Math.PI/4+t*Math.PI/360)))*this.worldSize/360},Br.prototype.xLng=function(t){return 360*t/this.worldSize-180},Br.prototype.yLat=function(t){var e=180-360*t/this.worldSize;return 360/Math.PI*Math.atan(Math.exp(e*Math.PI/180))-90},Br.prototype.setLocationAtPoint=function(t,e){var r=this.pointCoordinate(e)._sub(this.pointCoordinate(this.centerPoint));this.center=this.coordinateLocation(this.locationCoordinate(t)._sub(r)),this._renderWorldCopies&&(this.center=this.center.wrap())},Br.prototype.locationPoint=function(t){return this.coordinatePoint(this.locationCoordinate(t))},Br.prototype.pointLocation=function(t){return this.coordinateLocation(this.pointCoordinate(t))},Br.prototype.locationCoordinate=function(e){return new t.default$17(this.lngX(e.lng)/this.tileSize,this.latY(e.lat)/this.tileSize,this.zoom).zoomTo(this.tileZoom)},Br.prototype.coordinateLocation=function(t){var e=t.zoomTo(this.zoom);return new G(this.xLng(e.column*this.tileSize),this.yLat(e.row*this.tileSize))},Br.prototype.pointCoordinate=function(e,r){void 0===r&&(r=this.tileZoom);var n=[e.x,e.y,0,1],i=[e.x,e.y,1,1];Pr.transformMat4(n,n,this.pixelMatrixInverse),Pr.transformMat4(i,i,this.pixelMatrixInverse);var a=n[3],o=i[3],s=n[0]/a,l=i[0]/o,c=n[1]/a,u=i[1]/o,f=n[2]/a,h=i[2]/o,p=f===h?0:(0-f)/(h-f);return new t.default$17(t.number(s,l,p)/this.tileSize,t.number(c,u,p)/this.tileSize,this.zoom)._zoomTo(r)},Br.prototype.coordinatePoint=function(e){var r=e.zoomTo(this.zoom),n=[r.column*this.tileSize,r.row*this.tileSize,0,1];return Pr.transformMat4(n,n,this.pixelMatrix),new t.default$1(n[0]/n[3],n[1]/n[3])},Br.prototype.calculatePosMatrix=function(e,r){void 0===r&&(r=!1);var n=e.key,i=r?this._alignedPosMatrixCache:this._posMatrixCache;if(i[n])return i[n];var a=e.canonical,o=this.worldSize/this.zoomScale(a.z),s=a.x+Math.pow(2,a.z)*e.wrap,l=Rr.identity(new Float64Array(16));return Rr.translate(l,l,[s*o,a.y*o,0]),Rr.scale(l,l,[o/t.default$8,o/t.default$8,1]),Rr.multiply(l,r?this.alignedProjMatrix:this.projMatrix,l),i[n]=new Float32Array(l),i[n]},Br.prototype._constrain=function(){if(this.center&&this.width&&this.height&&!this._constraining){this._constraining=!0;var e,r,n,i,a=-90,o=90,s=-180,l=180,c=this.size,u=this._unmodified;if(this.latRange){var f=this.latRange;a=this.latY(f[1]),e=(o=this.latY(f[0]))-a<c.y?c.y/(o-a):0}if(this.lngRange){var h=this.lngRange;s=this.lngX(h[0]),r=(l=this.lngX(h[1]))-s<c.x?c.x/(l-s):0}var p=Math.max(r||0,e||0);if(p)return this.center=this.unproject(new t.default$1(r?(l+s)/2:this.x,e?(o+a)/2:this.y)),this.zoom+=this.scaleZoom(p),this._unmodified=u,void(this._constraining=!1);if(this.latRange){var d=this.y,g=c.y/2;d-g<a&&(i=a+g),d+g>o&&(i=o-g)}if(this.lngRange){var v=this.x,m=c.x/2;v-m<s&&(n=s+m),v+m>l&&(n=l-m)}void 0===n&&void 0===i||(this.center=this.unproject(new t.default$1(void 0!==n?n:this.x,void 0!==i?i:this.y))),this._unmodified=u,this._constraining=!1}},Br.prototype._calcMatrices=function(){if(this.height){this.cameraToCenterDistance=.5/Math.tan(this._fov/2)*this.height;var t=this._fov/2,e=Math.PI/2+this._pitch,r=Math.sin(t)*this.cameraToCenterDistance/Math.sin(Math.PI-e-t),n=this.x,i=this.y,a=1.01*(Math.cos(Math.PI/2-this._pitch)*r+this.cameraToCenterDistance),o=new Float64Array(16);Rr.perspective(o,this._fov,this.width/this.height,1,a),Rr.scale(o,o,[1,-1,1]),Rr.translate(o,o,[0,0,-this.cameraToCenterDistance]),Rr.rotateX(o,o,this._pitch),Rr.rotateZ(o,o,this.angle),Rr.translate(o,o,[-n,-i,0]);var s=this.worldSize/(2*Math.PI*6378137*Math.abs(Math.cos(this.center.lat*(Math.PI/180))));Rr.scale(o,o,[1,1,s,1]),this.projMatrix=o;var l=this.width%2/2,c=this.height%2/2,u=Math.cos(this.angle),f=Math.sin(this.angle),h=n-Math.round(n)+u*l+f*c,p=i-Math.round(i)+u*c+f*l,d=new Float64Array(o);if(Rr.translate(d,d,[h>.5?h-1:h,p>.5?p-1:p,0]),this.alignedProjMatrix=d,o=Rr.create(),Rr.scale(o,o,[this.width/2,-this.height/2,1]),Rr.translate(o,o,[1,-1,0]),this.pixelMatrix=Rr.multiply(new Float64Array(16),o,this.projMatrix),!(o=Rr.invert(new Float64Array(16),this.pixelMatrix)))throw new Error("failed to invert matrix");this.pixelMatrixInverse=o,this._posMatrixCache={},this._alignedPosMatrixCache={}}},Br.prototype.maxPitchScaleFactor=function(){if(!this.pixelMatrixInverse)return 1;var e=this.pointCoordinate(new t.default$1(0,0)).zoomTo(this.zoom),r=[e.column*this.tileSize,e.row*this.tileSize,0,1];return Pr.transformMat4(r,r,this.pixelMatrix)[3]/this.cameraToCenterDistance},Object.defineProperties(Br.prototype,Nr);var jr=function(){var e,r,n,i;t.bindAll(["_onHashChange","_updateHash"],this),this._updateHash=(e=this._updateHashUnthrottled.bind(this),300,r=!1,n=0,i=function(){n=0,r&&(e(),n=setTimeout(i,300),r=!1)},function(){return r=!0,n||i(),n})};jr.prototype.addTo=function(e){return this._map=e,t.default.addEventListener("hashchange",this._onHashChange,!1),this._map.on("moveend",this._updateHash),this},jr.prototype.remove=function(){return t.default.removeEventListener("hashchange",this._onHashChange,!1),this._map.off("moveend",this._updateHash),clearTimeout(this._updateHash()),delete this._map,this},jr.prototype.getHashString=function(t){var e=this._map.getCenter(),r=Math.round(100*this._map.getZoom())/100,n=Math.ceil((r*Math.LN2+Math.log(512/360/.5))/Math.LN10),i=Math.pow(10,n),a=Math.round(e.lng*i)/i,o=Math.round(e.lat*i)/i,s=this._map.getBearing(),l=this._map.getPitch(),c="";return c+=t?"#/"+a+"/"+o+"/"+r:"#"+r+"/"+o+"/"+a,(s||l)&&(c+="/"+Math.round(10*s)/10),l&&(c+="/"+Math.round(l)),c},jr.prototype._onHashChange=function(){var e=t.default.location.hash.replace("#","").split("/");return e.length>=3&&(this._map.jumpTo({center:[+e[2],+e[1]],zoom:+e[0],bearing:+(e[3]||0),pitch:+(e[4]||0)}),!0)},jr.prototype._updateHashUnthrottled=function(){var e=this.getHashString();t.default.history.replaceState(t.default.history.state,"",e)};var Vr=function(e){function r(r,n,i,a){void 0===a&&(a={});var o=s.mousePos(n.getCanvasContainer(),i),l=n.unproject(o);e.call(this,r,t.extend({point:o,lngLat:l,originalEvent:i},a)),this._defaultPrevented=!1,this.target=n}e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r;var n={defaultPrevented:{configurable:!0}};return r.prototype.preventDefault=function(){this._defaultPrevented=!0},n.defaultPrevented.get=function(){return this._defaultPrevented},Object.defineProperties(r.prototype,n),r}(t.Event),Ur=function(e){function r(r,n,i){var a=s.touchPos(n.getCanvasContainer(),i),o=a.map(function(t){return n.unproject(t)}),l=a.reduce(function(t,e,r,n){return t.add(e.div(n.length))},new t.default$1(0,0)),c=n.unproject(l);e.call(this,r,{points:a,point:l,lngLats:o,lngLat:c,originalEvent:i}),this._defaultPrevented=!1}e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r;var n={defaultPrevented:{configurable:!0}};return r.prototype.preventDefault=function(){this._defaultPrevented=!0},n.defaultPrevented.get=function(){return this._defaultPrevented},Object.defineProperties(r.prototype,n),r}(t.Event),Hr=function(t){function e(e,r,n){t.call(this,e,{originalEvent:n}),this._defaultPrevented=!1}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={defaultPrevented:{configurable:!0}};return e.prototype.preventDefault=function(){this._defaultPrevented=!0},r.defaultPrevented.get=function(){return this._defaultPrevented},Object.defineProperties(e.prototype,r),e}(t.Event),qr=function(e){this._map=e,this._el=e.getCanvasContainer(),this._delta=0,t.bindAll(["_onWheel","_onTimeout","_onScrollFrame","_onScrollFinished"],this)};qr.prototype.isEnabled=function(){return!!this._enabled},qr.prototype.isActive=function(){return!!this._active},qr.prototype.enable=function(t){this.isEnabled()||(this._enabled=!0,this._aroundCenter=t&&"center"===t.around)},qr.prototype.disable=function(){this.isEnabled()&&(this._enabled=!1)},qr.prototype.onWheel=function(e){if(this.isEnabled()){var r=e.deltaMode===t.default.WheelEvent.DOM_DELTA_LINE?40*e.deltaY:e.deltaY,n=a.now(),i=n-(this._lastWheelEventTime||0);this._lastWheelEventTime=n,0!==r&&r%4.000244140625==0?this._type="wheel":0!==r&&Math.abs(r)<4?this._type="trackpad":i>400?(this._type=null,this._lastValue=r,this._timeout=setTimeout(this._onTimeout,40,e)):this._type||(this._type=Math.abs(i*r)<200?"trackpad":"wheel",this._timeout&&(clearTimeout(this._timeout),this._timeout=null,r+=this._lastValue)),e.shiftKey&&r&&(r/=4),this._type&&(this._lastWheelEvent=e,this._delta-=r,this.isActive()||this._start(e)),e.preventDefault()}},qr.prototype._onTimeout=function(t){this._type="wheel",this._delta-=this._lastValue,this.isActive()||this._start(t)},qr.prototype._start=function(e){if(this._delta){this._frameId&&(this._map._cancelRenderFrame(this._frameId),this._frameId=null),this._active=!0,this._map.fire(new t.Event("movestart",{originalEvent:e})),this._map.fire(new t.Event("zoomstart",{originalEvent:e})),this._finishTimeout&&clearTimeout(this._finishTimeout);var r=s.mousePos(this._el,e);this._around=G.convert(this._aroundCenter?this._map.getCenter():this._map.unproject(r)),this._aroundPoint=this._map.transform.locationPoint(this._around),this._frameId||(this._frameId=this._map._requestRenderFrame(this._onScrollFrame))}},qr.prototype._onScrollFrame=function(){var e=this;if(this._frameId=null,this.isActive()){var r=this._map.transform;if(0!==this._delta){var n="wheel"===this._type&&Math.abs(this._delta)>4.000244140625?1/450:.01,i=2/(1+Math.exp(-Math.abs(this._delta*n)));this._delta<0&&0!==i&&(i=1/i);var o="number"==typeof this._targetZoom?r.zoomScale(this._targetZoom):r.scale;this._targetZoom=Math.min(r.maxZoom,Math.max(r.minZoom,r.scaleZoom(o*i))),"wheel"===this._type&&(this._startZoom=r.zoom,this._easing=this._smoothOutEasing(200)),this._delta=0}var s=!1;if("wheel"===this._type){var l=Math.min((a.now()-this._lastWheelEventTime)/200,1),c=this._easing(l);r.zoom=t.number(this._startZoom,this._targetZoom,c),l<1?this._frameId||(this._frameId=this._map._requestRenderFrame(this._onScrollFrame)):s=!0}else r.zoom=this._targetZoom,s=!0;r.setLocationAtPoint(this._around,this._aroundPoint),this._map.fire(new t.Event("move",{originalEvent:this._lastWheelEvent})),this._map.fire(new t.Event("zoom",{originalEvent:this._lastWheelEvent})),s&&(this._active=!1,this._finishTimeout=setTimeout(function(){e._map.fire(new t.Event("zoomend",{originalEvent:e._lastWheelEvent})),e._map.fire(new t.Event("moveend",{originalEvent:e._lastWheelEvent})),delete e._targetZoom},200))}},qr.prototype._smoothOutEasing=function(e){var r=t.ease;if(this._prevEase){var n=this._prevEase,i=(a.now()-n.start)/n.duration,o=n.easing(i+.01)-n.easing(i),s=.27/Math.sqrt(o*o+1e-4)*.01,l=Math.sqrt(.0729-s*s);r=t.bezier(s,l,.25,1)}return this._prevEase={start:a.now(),duration:e,easing:r},r};var Gr=function(e){this._map=e,this._el=e.getCanvasContainer(),this._container=e.getContainer(),t.bindAll(["_onMouseMove","_onMouseUp","_onKeyDown"],this)};Gr.prototype.isEnabled=function(){return!!this._enabled},Gr.prototype.isActive=function(){return!!this._active},Gr.prototype.enable=function(){this.isEnabled()||(this._enabled=!0)},Gr.prototype.disable=function(){this.isEnabled()&&(this._enabled=!1)},Gr.prototype.onMouseDown=function(e){this.isEnabled()&&e.shiftKey&&0===e.button&&(t.default.document.addEventListener("mousemove",this._onMouseMove,!1),t.default.document.addEventListener("keydown",this._onKeyDown,!1),t.default.document.addEventListener("mouseup",this._onMouseUp,!1),s.disableDrag(),this._startPos=s.mousePos(this._el,e),this._active=!0)},Gr.prototype._onMouseMove=function(t){var e=this._startPos,r=s.mousePos(this._el,t);this._box||(this._box=s.create("div","mapboxgl-boxzoom",this._container),this._container.classList.add("mapboxgl-crosshair"),this._fireEvent("boxzoomstart",t));var n=Math.min(e.x,r.x),i=Math.max(e.x,r.x),a=Math.min(e.y,r.y),o=Math.max(e.y,r.y);s.setTransform(this._box,"translate("+n+"px,"+a+"px)"),this._box.style.width=i-n+"px",this._box.style.height=o-a+"px"},Gr.prototype._onMouseUp=function(e){if(0===e.button){var r=this._startPos,n=s.mousePos(this._el,e),i=(new Y).extend(this._map.unproject(r)).extend(this._map.unproject(n));this._finish(),s.suppressClick(),r.x===n.x&&r.y===n.y?this._fireEvent("boxzoomcancel",e):this._map.fitBounds(i,{linear:!0}).fire(new t.Event("boxzoomend",{originalEvent:e,boxZoomBounds:i}))}},Gr.prototype._onKeyDown=function(t){27===t.keyCode&&(this._finish(),this._fireEvent("boxzoomcancel",t))},Gr.prototype._finish=function(){this._active=!1,t.default.document.removeEventListener("mousemove",this._onMouseMove,!1),t.default.document.removeEventListener("keydown",this._onKeyDown,!1),t.default.document.removeEventListener("mouseup",this._onMouseUp,!1),this._container.classList.remove("mapboxgl-crosshair"),this._box&&(s.remove(this._box),this._box=null),s.enableDrag()},Gr.prototype._fireEvent=function(e,r){return this._map.fire(new t.Event(e,{originalEvent:r}))};var Yr=t.bezier(0,0,.25,1),Wr=function(e,r){this._map=e,this._el=r.element||e.getCanvasContainer(),this._state="disabled",this._button=r.button||"right",this._bearingSnap=r.bearingSnap||0,this._pitchWithRotate=!1!==r.pitchWithRotate,t.bindAll(["_onMouseMove","_onMouseUp","_onBlur","_onDragFrame"],this)};Wr.prototype.isEnabled=function(){return"disabled"!==this._state},Wr.prototype.isActive=function(){return"active"===this._state},Wr.prototype.enable=function(){this.isEnabled()||(this._state="enabled")},Wr.prototype.disable=function(){if(this.isEnabled())switch(this._state){case"active":this._state="disabled",this._unbind(),this._deactivate(),this._fireEvent("rotateend"),this._pitchWithRotate&&this._fireEvent("pitchend"),this._fireEvent("moveend");break;case"pending":this._state="disabled",this._unbind();break;default:this._state="disabled"}},Wr.prototype.onMouseDown=function(e){if("enabled"===this._state){if("right"===this._button){if(this._eventButton=s.mouseButton(e),this._eventButton!==(e.ctrlKey?0:2))return}else{if(e.ctrlKey||0!==s.mouseButton(e))return;this._eventButton=0}s.disableDrag(),t.default.document.addEventListener("mousemove",this._onMouseMove,{capture:!0}),t.default.document.addEventListener("mouseup",this._onMouseUp),t.default.addEventListener("blur",this._onBlur),this._state="pending",this._inertia=[[a.now(),this._map.getBearing()]],this._previousPos=s.mousePos(this._el,e),this._center=this._map.transform.centerPoint,e.preventDefault()}},Wr.prototype._onMouseMove=function(t){this._lastMoveEvent=t,this._pos=s.mousePos(this._el,t),"pending"===this._state&&(this._state="active",this._fireEvent("rotatestart",t),this._fireEvent("movestart",t),this._pitchWithRotate&&this._fireEvent("pitchstart",t)),this._frameId||(this._frameId=this._map._requestRenderFrame(this._onDragFrame))},Wr.prototype._onDragFrame=function(){this._frameId=null;var t=this._lastMoveEvent;if(t){var e=this._map.transform,r=this._previousPos,n=this._pos,i=.8*(r.x-n.x),o=-.5*(r.y-n.y),s=e.bearing-i,l=e.pitch-o,c=this._inertia,u=c[c.length-1];this._drainInertiaBuffer(),c.push([a.now(),this._map._normalizeBearing(s,u[1])]),e.bearing=s,this._pitchWithRotate&&(this._fireEvent("pitch",t),e.pitch=l),this._fireEvent("rotate",t),this._fireEvent("move",t),delete this._lastMoveEvent,this._previousPos=this._pos}},Wr.prototype._onMouseUp=function(t){if(s.mouseButton(t)===this._eventButton)switch(this._state){case"active":this._state="enabled",s.suppressClick(),this._unbind(),this._deactivate(),this._inertialRotate(t);break;case"pending":this._state="enabled",this._unbind()}},Wr.prototype._onBlur=function(t){switch(this._state){case"active":this._state="enabled",this._unbind(),this._deactivate(),this._fireEvent("rotateend",t),this._pitchWithRotate&&this._fireEvent("pitchend",t),this._fireEvent("moveend",t);break;case"pending":this._state="enabled",this._unbind()}},Wr.prototype._unbind=function(){t.default.document.removeEventListener("mousemove",this._onMouseMove,{capture:!0}),t.default.document.removeEventListener("mouseup",this._onMouseUp),t.default.removeEventListener("blur",this._onBlur),s.enableDrag()},Wr.prototype._deactivate=function(){this._frameId&&(this._map._cancelRenderFrame(this._frameId),this._frameId=null),delete this._lastMoveEvent,delete this._previousPos},Wr.prototype._inertialRotate=function(t){var e=this;this._fireEvent("rotateend",t),this._drainInertiaBuffer();var r=this._map,n=r.getBearing(),i=this._inertia,a=function(){Math.abs(n)<e._bearingSnap?r.resetNorth({noMoveStart:!0},{originalEvent:t}):e._fireEvent("moveend",t),e._pitchWithRotate&&e._fireEvent("pitchend",t)};if(i.length<2)a();else{var o=i[0],s=i[i.length-1],l=i[i.length-2],c=r._normalizeBearing(n,l[1]),u=s[1]-o[1],f=u<0?-1:1,h=(s[0]-o[0])/1e3;if(0!==u&&0!==h){var p=Math.abs(u*(.25/h));p>180&&(p=180);var d=p/180;c+=f*p*(d/2),Math.abs(r._normalizeBearing(c,0))<this._bearingSnap&&(c=r._normalizeBearing(0,c)),r.rotateTo(c,{duration:1e3*d,easing:Yr,noMoveStart:!0},{originalEvent:t})}else a()}},Wr.prototype._fireEvent=function(e,r){return this._map.fire(new t.Event(e,r?{originalEvent:r}:{}))},Wr.prototype._drainInertiaBuffer=function(){for(var t=this._inertia,e=a.now();t.length>0&&e-t[0][0]>160;)t.shift()};var Xr=t.bezier(0,0,.3,1),Zr=function(e){this._map=e,this._el=e.getCanvasContainer(),this._state="disabled",t.bindAll(["_onMove","_onMouseUp","_onTouchEnd","_onBlur","_onDragFrame"],this)};Zr.prototype.isEnabled=function(){return"disabled"!==this._state},Zr.prototype.isActive=function(){return"active"===this._state},Zr.prototype.enable=function(){this.isEnabled()||(this._el.classList.add("mapboxgl-touch-drag-pan"),this._state="enabled")},Zr.prototype.disable=function(){if(this.isEnabled())switch(this._el.classList.remove("mapboxgl-touch-drag-pan"),this._state){case"active":this._state="disabled",this._unbind(),this._deactivate(),this._fireEvent("dragend"),this._fireEvent("moveend");break;case"pending":this._state="disabled",this._unbind();break;default:this._state="disabled"}},Zr.prototype.onMouseDown=function(e){"enabled"===this._state&&(e.ctrlKey||0!==s.mouseButton(e)||(s.addEventListener(t.default.document,"mousemove",this._onMove,{capture:!0}),s.addEventListener(t.default.document,"mouseup",this._onMouseUp),this._start(e)))},Zr.prototype.onTouchStart=function(e){"enabled"===this._state&&(e.touches.length>1||(s.addEventListener(t.default.document,"touchmove",this._onMove,{capture:!0,passive:!1}),s.addEventListener(t.default.document,"touchend",this._onTouchEnd),this._start(e)))},Zr.prototype._start=function(e){t.default.addEventListener("blur",this._onBlur),this._state="pending",this._previousPos=s.mousePos(this._el,e),this._inertia=[[a.now(),this._previousPos]]},Zr.prototype._onMove=function(t){this._lastMoveEvent=t,t.preventDefault(),this._pos=s.mousePos(this._el,t),this._drainInertiaBuffer(),this._inertia.push([a.now(),this._pos]),"pending"===this._state&&(this._state="active",this._fireEvent("dragstart",t),this._fireEvent("movestart",t)),this._frameId||(this._frameId=this._map._requestRenderFrame(this._onDragFrame))},Zr.prototype._onDragFrame=function(){this._frameId=null;var t=this._lastMoveEvent;if(t){var e=this._map.transform;e.setLocationAtPoint(e.pointLocation(this._previousPos),this._pos),this._fireEvent("drag",t),this._fireEvent("move",t),this._previousPos=this._pos,delete this._lastMoveEvent}},Zr.prototype._onMouseUp=function(t){if(0===s.mouseButton(t))switch(this._state){case"active":this._state="enabled",s.suppressClick(),this._unbind(),this._deactivate(),this._inertialPan(t);break;case"pending":this._state="enabled",this._unbind()}},Zr.prototype._onTouchEnd=function(t){switch(this._state){case"active":this._state="enabled",this._unbind(),this._deactivate(),this._inertialPan(t);break;case"pending":this._state="enabled",this._unbind()}},Zr.prototype._onBlur=function(t){switch(this._state){case"active":this._state="enabled",this._unbind(),this._deactivate(),this._fireEvent("dragend",t),this._fireEvent("moveend",t);break;case"pending":this._state="enabled",this._unbind()}},Zr.prototype._unbind=function(){s.removeEventListener(t.default.document,"touchmove",this._onMove,{capture:!0,passive:!1}),s.removeEventListener(t.default.document,"touchend",this._onTouchEnd),s.removeEventListener(t.default.document,"mousemove",this._onMove,{capture:!0}),s.removeEventListener(t.default.document,"mouseup",this._onMouseUp),s.removeEventListener(t.default,"blur",this._onBlur)},Zr.prototype._deactivate=function(){this._frameId&&(this._map._cancelRenderFrame(this._frameId),this._frameId=null),delete this._lastMoveEvent,delete this._previousPos,delete this._pos},Zr.prototype._inertialPan=function(t){this._fireEvent("dragend",t),this._drainInertiaBuffer();var e=this._inertia;if(e.length<2)this._fireEvent("moveend",t);else{var r=e[e.length-1],n=e[0],i=r[1].sub(n[1]),a=(r[0]-n[0])/1e3;if(0===a||r[1].equals(n[1]))this._fireEvent("moveend",t);else{var o=i.mult(.3/a),s=o.mag();s>1400&&(s=1400,o._unit()._mult(s));var l=s/750,c=o.mult(-l/2);this._map.panBy(c,{duration:1e3*l,easing:Xr,noMoveStart:!0},{originalEvent:t})}}},Zr.prototype._fireEvent=function(e,r){return this._map.fire(new t.Event(e,r?{originalEvent:r}:{}))},Zr.prototype._drainInertiaBuffer=function(){for(var t=this._inertia,e=a.now();t.length>0&&e-t[0][0]>160;)t.shift()};var $r=function(e){this._map=e,this._el=e.getCanvasContainer(),t.bindAll(["_onKeyDown"],this)};function Jr(t){return t*(2-t)}$r.prototype.isEnabled=function(){return!!this._enabled},$r.prototype.enable=function(){this.isEnabled()||(this._el.addEventListener("keydown",this._onKeyDown,!1),this._enabled=!0)},$r.prototype.disable=function(){this.isEnabled()&&(this._el.removeEventListener("keydown",this._onKeyDown),this._enabled=!1)},$r.prototype._onKeyDown=function(t){if(!(t.altKey||t.ctrlKey||t.metaKey)){var e=0,r=0,n=0,i=0,a=0;switch(t.keyCode){case 61:case 107:case 171:case 187:e=1;break;case 189:case 109:case 173:e=-1;break;case 37:t.shiftKey?r=-1:(t.preventDefault(),i=-1);break;case 39:t.shiftKey?r=1:(t.preventDefault(),i=1);break;case 38:t.shiftKey?n=1:(t.preventDefault(),a=-1);break;case 40:t.shiftKey?n=-1:(a=1,t.preventDefault());break;default:return}var o=this._map,s=o.getZoom(),l={duration:300,delayEndEvents:500,easing:Jr,zoom:e?Math.round(s)+e*(t.shiftKey?2:1):s,bearing:o.getBearing()+15*r,pitch:o.getPitch()+10*n,offset:[100*-i,100*-a],center:o.getCenter()};o.easeTo(l,{originalEvent:t})}};var Kr=function(e){this._map=e,t.bindAll(["_onDblClick","_onZoomEnd"],this)};Kr.prototype.isEnabled=function(){return!!this._enabled},Kr.prototype.isActive=function(){return!!this._active},Kr.prototype.enable=function(){this.isEnabled()||(this._enabled=!0)},Kr.prototype.disable=function(){this.isEnabled()&&(this._enabled=!1)},Kr.prototype.onTouchStart=function(t){var e=this;this.isEnabled()&&(t.points.length>1||(this._tapped?(clearTimeout(this._tapped),this._tapped=null,this._zoom(t)):this._tapped=setTimeout(function(){e._tapped=null},300)))},Kr.prototype.onDblClick=function(t){this.isEnabled()&&(t.originalEvent.preventDefault(),this._zoom(t))},Kr.prototype._zoom=function(t){this._active=!0,this._map.on("zoomend",this._onZoomEnd),this._map.zoomTo(this._map.getZoom()+(t.originalEvent.shiftKey?-1:1),{around:t.lngLat},t)},Kr.prototype._onZoomEnd=function(){this._active=!1,this._map.off("zoomend",this._onZoomEnd)};var Qr=t.bezier(0,0,.15,1),tn=function(e){this._map=e,this._el=e.getCanvasContainer(),t.bindAll(["_onMove","_onEnd","_onTouchFrame"],this)};tn.prototype.isEnabled=function(){return!!this._enabled},tn.prototype.enable=function(t){this.isEnabled()||(this._el.classList.add("mapboxgl-touch-zoom-rotate"),this._enabled=!0,this._aroundCenter=!!t&&"center"===t.around)},tn.prototype.disable=function(){this.isEnabled()&&(this._el.classList.remove("mapboxgl-touch-zoom-rotate"),this._enabled=!1)},tn.prototype.disableRotation=function(){this._rotationDisabled=!0},tn.prototype.enableRotation=function(){this._rotationDisabled=!1},tn.prototype.onStart=function(e){if(this.isEnabled()&&2===e.touches.length){var r=s.mousePos(this._el,e.touches[0]),n=s.mousePos(this._el,e.touches[1]);this._startVec=r.sub(n),this._gestureIntent=void 0,this._inertia=[],s.addEventListener(t.default.document,"touchmove",this._onMove,{passive:!1}),s.addEventListener(t.default.document,"touchend",this._onEnd)}},tn.prototype._getTouchEventData=function(t){var e=s.mousePos(this._el,t.touches[0]),r=s.mousePos(this._el,t.touches[1]),n=e.sub(r);return{vec:n,center:e.add(r).div(2),scale:n.mag()/this._startVec.mag(),bearing:this._rotationDisabled?0:180*n.angleWith(this._startVec)/Math.PI}},tn.prototype._onMove=function(e){if(2===e.touches.length){var r=this._getTouchEventData(e),n=r.vec,i=r.scale,a=r.bearing;if(!this._gestureIntent){var o=Math.abs(1-i)>.15;Math.abs(a)>10?this._gestureIntent="rotate":o&&(this._gestureIntent="zoom"),this._gestureIntent&&(this._map.fire(new t.Event(this._gestureIntent+"start",{originalEvent:e})),this._map.fire(new t.Event("movestart",{originalEvent:e})),this._startVec=n)}this._lastTouchEvent=e,this._frameId||(this._frameId=this._map._requestRenderFrame(this._onTouchFrame)),e.preventDefault()}},tn.prototype._onTouchFrame=function(){this._frameId=null;var e=this._gestureIntent;if(e){var r=this._map.transform;this._startScale||(this._startScale=r.scale,this._startBearing=r.bearing);var n=this._getTouchEventData(this._lastTouchEvent),i=n.center,o=n.bearing,s=n.scale,l=r.pointLocation(i),c=r.locationPoint(l);"rotate"===e&&(r.bearing=this._startBearing+o),r.zoom=r.scaleZoom(this._startScale*s),r.setLocationAtPoint(l,c),this._map.fire(new t.Event(e,{originalEvent:this._lastTouchEvent})),this._map.fire(new t.Event("move",{originalEvent:this._lastTouchEvent})),this._drainInertiaBuffer(),this._inertia.push([a.now(),s,i])}},tn.prototype._onEnd=function(e){s.removeEventListener(t.default.document,"touchmove",this._onMove,{passive:!1}),s.removeEventListener(t.default.document,"touchend",this._onEnd);var r=this._gestureIntent,n=this._startScale;if(this._frameId&&(this._map._cancelRenderFrame(this._frameId),this._frameId=null),delete this._gestureIntent,delete this._startScale,delete this._startBearing,delete this._lastTouchEvent,r){this._map.fire(new t.Event(r+"end",{originalEvent:e})),this._drainInertiaBuffer();var i=this._inertia,a=this._map;if(i.length<2)a.snapToNorth({},{originalEvent:e});else{var o=i[i.length-1],l=i[0],c=a.transform.scaleZoom(n*o[1]),u=a.transform.scaleZoom(n*l[1]),f=c-u,h=(o[0]-l[0])/1e3,p=o[2];if(0!==h&&c!==u){var d=.15*f/h;Math.abs(d)>2.5&&(d=d>0?2.5:-2.5);var g=1e3*Math.abs(d/(12*.15)),v=c+d*g/2e3;v<0&&(v=0),a.easeTo({zoom:v,duration:g,easing:Qr,around:this._aroundCenter?a.getCenter():a.unproject(p),noMoveStart:!0},{originalEvent:e})}else a.snapToNorth({},{originalEvent:e})}}},tn.prototype._drainInertiaBuffer=function(){for(var t=this._inertia,e=a.now();t.length>2&&e-t[0][0]>160;)t.shift()};var en={scrollZoom:qr,boxZoom:Gr,dragRotate:Wr,dragPan:Zr,keyboard:$r,doubleClickZoom:Kr,touchZoomRotate:tn},rn=function(e){function r(r,n){e.call(this),this._moving=!1,this._zooming=!1,this.transform=r,this._bearingSnap=n.bearingSnap,t.bindAll(["_renderFrameCallback"],this)}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.getCenter=function(){return this.transform.center},r.prototype.setCenter=function(t,e){return this.jumpTo({center:t},e)},r.prototype.panBy=function(e,r,n){return e=t.default$1.convert(e).mult(-1),this.panTo(this.transform.center,t.extend({offset:e},r),n)},r.prototype.panTo=function(e,r,n){return this.easeTo(t.extend({center:e},r),n)},r.prototype.getZoom=function(){return this.transform.zoom},r.prototype.setZoom=function(t,e){return this.jumpTo({zoom:t},e),this},r.prototype.zoomTo=function(e,r,n){return this.easeTo(t.extend({zoom:e},r),n)},r.prototype.zoomIn=function(t,e){return this.zoomTo(this.getZoom()+1,t,e),this},r.prototype.zoomOut=function(t,e){return this.zoomTo(this.getZoom()-1,t,e),this},r.prototype.getBearing=function(){return this.transform.bearing},r.prototype.setBearing=function(t,e){return this.jumpTo({bearing:t},e),this},r.prototype.rotateTo=function(e,r,n){return this.easeTo(t.extend({bearing:e},r),n)},r.prototype.resetNorth=function(e,r){return this.rotateTo(0,t.extend({duration:1e3},e),r),this},r.prototype.snapToNorth=function(t,e){return Math.abs(this.getBearing())<this._bearingSnap?this.resetNorth(t,e):this},r.prototype.getPitch=function(){return this.transform.pitch},r.prototype.setPitch=function(t,e){return this.jumpTo({pitch:t},e),this},r.prototype.fitBounds=function(e,r,n){if("number"==typeof(r=t.extend({padding:{top:0,bottom:0,right:0,left:0},offset:[0,0],maxZoom:this.transform.maxZoom},r)).padding){var i=r.padding;r.padding={top:i,bottom:i,right:i,left:i}}if(!t.default$10(Object.keys(r.padding).sort(function(t,e){return t<e?-1:t>e?1:0}),["bottom","left","right","top"]))return t.warnOnce("options.padding must be a positive number, or an Object with keys 'bottom', 'left', 'right', 'top'"),this;e=Y.convert(e);var a=[(r.padding.left-r.padding.right)/2,(r.padding.top-r.padding.bottom)/2],o=Math.min(r.padding.right,r.padding.left),s=Math.min(r.padding.top,r.padding.bottom);r.offset=[r.offset[0]+a[0],r.offset[1]+a[1]];var l=t.default$1.convert(r.offset),c=this.transform,u=c.project(e.getNorthWest()),f=c.project(e.getSouthEast()),h=f.sub(u),p=(c.width-2*o-2*Math.abs(l.x))/h.x,d=(c.height-2*s-2*Math.abs(l.y))/h.y;return d<0||p<0?(t.warnOnce("Map cannot fit within canvas with the given bounds, padding, and/or offset."),this):(r.center=c.unproject(u.add(f).div(2)),r.zoom=Math.min(c.scaleZoom(c.scale*Math.min(p,d)),r.maxZoom),r.bearing=0,r.linear?this.easeTo(r,n):this.flyTo(r,n))},r.prototype.jumpTo=function(e,r){this.stop();var n=this.transform,i=!1,a=!1,o=!1;return"zoom"in e&&n.zoom!==+e.zoom&&(i=!0,n.zoom=+e.zoom),void 0!==e.center&&(n.center=G.convert(e.center)),"bearing"in e&&n.bearing!==+e.bearing&&(a=!0,n.bearing=+e.bearing),"pitch"in e&&n.pitch!==+e.pitch&&(o=!0,n.pitch=+e.pitch),this.fire(new t.Event("movestart",r)).fire(new t.Event("move",r)),i&&this.fire(new t.Event("zoomstart",r)).fire(new t.Event("zoom",r)).fire(new t.Event("zoomend",r)),a&&this.fire(new t.Event("rotatestart",r)).fire(new t.Event("rotate",r)).fire(new t.Event("rotateend",r)),o&&this.fire(new t.Event("pitchstart",r)).fire(new t.Event("pitch",r)).fire(new t.Event("pitchend",r)),this.fire(new t.Event("moveend",r))},r.prototype.easeTo=function(e,r){var n=this;this.stop(),!1===(e=t.extend({offset:[0,0],duration:500,easing:t.ease},e)).animate&&(e.duration=0);var i=this.transform,a=this.getZoom(),o=this.getBearing(),s=this.getPitch(),l="zoom"in e?+e.zoom:a,c="bearing"in e?this._normalizeBearing(e.bearing,o):o,u="pitch"in e?+e.pitch:s,f=i.centerPoint.add(t.default$1.convert(e.offset)),h=i.pointLocation(f),p=G.convert(e.center||h);this._normalizeCenter(p);var d,g,v=i.project(h),m=i.project(p).sub(v),y=i.zoomScale(l-a);return e.around&&(d=G.convert(e.around),g=i.locationPoint(d)),this._zooming=l!==a,this._rotating=o!==c,this._pitching=u!==s,this._prepareEase(r,e.noMoveStart),clearTimeout(this._easeEndTimeoutID),this._ease(function(e){if(n._zooming&&(i.zoom=t.number(a,l,e)),n._rotating&&(i.bearing=t.number(o,c,e)),n._pitching&&(i.pitch=t.number(s,u,e)),d)i.setLocationAtPoint(d,g);else{var h=i.zoomScale(i.zoom-a),p=l>a?Math.min(2,y):Math.max(.5,y),x=Math.pow(p,1-e),b=i.unproject(v.add(m.mult(e*x)).mult(h));i.setLocationAtPoint(i.renderWorldCopies?b.wrap():b,f)}n._fireMoveEvents(r)},function(){e.delayEndEvents?n._easeEndTimeoutID=setTimeout(function(){return n._afterEase(r)},e.delayEndEvents):n._afterEase(r)},e),this},r.prototype._prepareEase=function(e,r){this._moving=!0,r||this.fire(new t.Event("movestart",e)),this._zooming&&this.fire(new t.Event("zoomstart",e)),this._rotating&&this.fire(new t.Event("rotatestart",e)),this._pitching&&this.fire(new t.Event("pitchstart",e))},r.prototype._fireMoveEvents=function(e){this.fire(new t.Event("move",e)),this._zooming&&this.fire(new t.Event("zoom",e)),this._rotating&&this.fire(new t.Event("rotate",e)),this._pitching&&this.fire(new t.Event("pitch",e))},r.prototype._afterEase=function(e){var r=this._zooming,n=this._rotating,i=this._pitching;this._moving=!1,this._zooming=!1,this._rotating=!1,this._pitching=!1,r&&this.fire(new t.Event("zoomend",e)),n&&this.fire(new t.Event("rotateend",e)),i&&this.fire(new t.Event("pitchend",e)),this.fire(new t.Event("moveend",e))},r.prototype.flyTo=function(e,r){var n=this;this.stop(),e=t.extend({offset:[0,0],speed:1.2,curve:1.42,easing:t.ease},e);var i=this.transform,a=this.getZoom(),o=this.getBearing(),s=this.getPitch(),l="zoom"in e?t.clamp(+e.zoom,i.minZoom,i.maxZoom):a,c="bearing"in e?this._normalizeBearing(e.bearing,o):o,u="pitch"in e?+e.pitch:s,f=i.zoomScale(l-a),h=i.centerPoint.add(t.default$1.convert(e.offset)),p=i.pointLocation(h),d=G.convert(e.center||p);this._normalizeCenter(d);var g=i.project(p),v=i.project(d).sub(g),m=e.curve,y=Math.max(i.width,i.height),x=y/f,b=v.mag();if("minZoom"in e){var _=t.clamp(Math.min(e.minZoom,a,l),i.minZoom,i.maxZoom),w=y/i.zoomScale(_-a);m=Math.sqrt(w/b*2)}var k=m*m;function T(t){var e=(x*x-y*y+(t?-1:1)*k*k*b*b)/(2*(t?x:y)*k*b);return Math.log(Math.sqrt(e*e+1)-e)}function A(t){return(Math.exp(t)-Math.exp(-t))/2}function M(t){return(Math.exp(t)+Math.exp(-t))/2}var S=T(0),E=function(t){return M(S)/M(S+m*t)},C=function(t){return y*((M(S)*(A(e=S+m*t)/M(e))-A(S))/k)/b;var e},L=(T(1)-S)/m;if(Math.abs(b)<1e-6||!isFinite(L)){if(Math.abs(y-x)<1e-6)return this.easeTo(e,r);var z=x<y?-1:1;L=Math.abs(Math.log(x/y))/m,C=function(){return 0},E=function(t){return Math.exp(z*m*t)}}if("duration"in e)e.duration=+e.duration;else{var O="screenSpeed"in e?+e.screenSpeed/m:+e.speed;e.duration=1e3*L/O}return e.maxDuration&&e.duration>e.maxDuration&&(e.duration=0),this._zooming=!0,this._rotating=o!==c,this._pitching=u!==s,this._prepareEase(r,!1),this._ease(function(e){var l=e*L,f=1/E(l);i.zoom=a+i.scaleZoom(f),n._rotating&&(i.bearing=t.number(o,c,e)),n._pitching&&(i.pitch=t.number(s,u,e));var p=i.unproject(g.add(v.mult(C(l))).mult(f));i.setLocationAtPoint(i.renderWorldCopies?p.wrap():p,h),n._fireMoveEvents(r)},function(){return n._afterEase(r)},e),this},r.prototype.isEasing=function(){return!!this._easeFrameId},r.prototype.stop=function(){if(this._easeFrameId&&(this._cancelRenderFrame(this._easeFrameId),delete this._easeFrameId,delete this._onEaseFrame),this._onEaseEnd){var t=this._onEaseEnd;delete this._onEaseEnd,t.call(this)}return this},r.prototype._ease=function(t,e,r){!1===r.animate||0===r.duration?(t(1),e()):(this._easeStart=a.now(),this._easeOptions=r,this._onEaseFrame=t,this._onEaseEnd=e,this._easeFrameId=this._requestRenderFrame(this._renderFrameCallback))},r.prototype._renderFrameCallback=function(){var t=Math.min((a.now()-this._easeStart)/this._easeOptions.duration,1);this._onEaseFrame(this._easeOptions.easing(t)),t<1?this._easeFrameId=this._requestRenderFrame(this._renderFrameCallback):this.stop()},r.prototype._normalizeBearing=function(e,r){e=t.wrap(e,-180,180);var n=Math.abs(e-r);return Math.abs(e-360-r)<n&&(e-=360),Math.abs(e+360-r)<n&&(e+=360),e},r.prototype._normalizeCenter=function(t){var e=this.transform;if(e.renderWorldCopies&&!e.lngRange){var r=t.lng-e.center.lng;t.lng+=r>180?-360:r<-180?360:0}},r}(t.Evented),nn=function(e){void 0===e&&(e={}),this.options=e,t.bindAll(["_updateEditLink","_updateData","_updateCompact"],this)};nn.prototype.getDefaultPosition=function(){return"bottom-right"},nn.prototype.onAdd=function(t){var e=this.options&&this.options.compact;return this._map=t,this._container=s.create("div","mapboxgl-ctrl mapboxgl-ctrl-attrib"),e&&this._container.classList.add("mapboxgl-compact"),this._updateAttributions(),this._updateEditLink(),this._map.on("sourcedata",this._updateData),this._map.on("moveend",this._updateEditLink),void 0===e&&(this._map.on("resize",this._updateCompact),this._updateCompact()),this._container},nn.prototype.onRemove=function(){s.remove(this._container),this._map.off("sourcedata",this._updateData),this._map.off("moveend",this._updateEditLink),this._map.off("resize",this._updateCompact),this._map=void 0},nn.prototype._updateEditLink=function(){var t=this._editLink;t||(t=this._editLink=this._container.querySelector(".mapbox-improve-map"));var e=[{key:"owner",value:this.styleOwner},{key:"id",value:this.styleId},{key:"access_token",value:v.ACCESS_TOKEN}];if(t){var r=e.reduce(function(t,r,n){return r.value&&(t+=r.key+"="+r.value+(n<e.length-1?"&":"")),t},"?");t.href="https://www.mapbox.com/feedback/"+r+(this._map._hash?this._map._hash.getHashString(!0):"")}},nn.prototype._updateData=function(t){t&&"metadata"===t.sourceDataType&&(this._updateAttributions(),this._updateEditLink())},nn.prototype._updateAttributions=function(){if(this._map.style){var t=[];if(this._map.style.stylesheet){var e=this._map.style.stylesheet;this.styleOwner=e.owner,this.styleId=e.id}var r=this._map.style.sourceCaches;for(var n in r){var i=r[n].getSource();i.attribution&&t.indexOf(i.attribution)<0&&t.push(i.attribution)}t.sort(function(t,e){return t.length-e.length}),(t=t.filter(function(e,r){for(var n=r+1;n<t.length;n++)if(t[n].indexOf(e)>=0)return!1;return!0})).length?(this._container.innerHTML=t.join(" | "),this._container.classList.remove("mapboxgl-attrib-empty")):this._container.classList.add("mapboxgl-attrib-empty"),this._editLink=null}},nn.prototype._updateCompact=function(){this._map.getCanvasContainer().offsetWidth<=640?this._container.classList.add("mapboxgl-compact"):this._container.classList.remove("mapboxgl-compact")};var an=function(){t.bindAll(["_updateLogo"],this)};an.prototype.onAdd=function(t){this._map=t,this._container=s.create("div","mapboxgl-ctrl");var e=s.create("a","mapboxgl-ctrl-logo");return e.target="_blank",e.href="https://www.mapbox.com/",e.setAttribute("aria-label","Mapbox logo"),this._container.appendChild(e),this._container.style.display="none",this._map.on("sourcedata",this._updateLogo),this._updateLogo(),this._container},an.prototype.onRemove=function(){s.remove(this._container),this._map.off("sourcedata",this._updateLogo)},an.prototype.getDefaultPosition=function(){return"bottom-left"},an.prototype._updateLogo=function(t){t&&"metadata"!==t.sourceDataType||(this._container.style.display=this._logoRequired()?"block":"none")},an.prototype._logoRequired=function(){if(this._map.style){var t=this._map.style.sourceCaches;for(var e in t)if(t[e].getSource().mapbox_logo)return!0;return!1}};var on=function(){this._queue=[],this._id=0,this._cleared=!1,this._currentlyRunning=!1};on.prototype.add=function(t){var e=++this._id;return this._queue.push({callback:t,id:e,cancelled:!1}),e},on.prototype.remove=function(t){for(var e=this._currentlyRunning,r=0,n=e?this._queue.concat(e):this._queue;r<n.length;r+=1){var i=n[r];if(i.id===t)return void(i.cancelled=!0)}},on.prototype.run=function(){var t=this._currentlyRunning=this._queue;this._queue=[];for(var e=0,r=t;e<r.length;e+=1){var n=r[e];if(!n.cancelled&&(n.callback(),this._cleared))break}this._cleared=!1,this._currentlyRunning=!1},on.prototype.clear=function(){this._currentlyRunning&&(this._cleared=!0),this._queue=[]};var sn=t.default.HTMLImageElement,ln=t.default.HTMLElement,cn={center:[0,0],zoom:0,bearing:0,pitch:0,minZoom:0,maxZoom:22,interactive:!0,scrollZoom:!0,boxZoom:!0,dragRotate:!0,dragPan:!0,keyboard:!0,doubleClickZoom:!0,touchZoomRotate:!0,bearingSnap:7,hash:!1,attributionControl:!0,failIfMajorPerformanceCaveat:!1,preserveDrawingBuffer:!1,trackResize:!0,renderWorldCopies:!0,refreshExpiredTiles:!0,maxTileCacheSize:null,transformRequest:null,fadeDuration:300},un=function(r){function n(e){if(null!=(e=t.extend({},cn,e)).minZoom&&null!=e.maxZoom&&e.minZoom>e.maxZoom)throw new Error("maxZoom must be greater than minZoom");var n=new Br(e.minZoom,e.maxZoom,e.renderWorldCopies);r.call(this,n,e),this._interactive=e.interactive,this._maxTileCacheSize=e.maxTileCacheSize,this._failIfMajorPerformanceCaveat=e.failIfMajorPerformanceCaveat,this._preserveDrawingBuffer=e.preserveDrawingBuffer,this._trackResize=e.trackResize,this._bearingSnap=e.bearingSnap,this._refreshExpiredTiles=e.refreshExpiredTiles,this._fadeDuration=e.fadeDuration,this._crossFadingFactor=1,this._collectResourceTiming=e.collectResourceTiming,this._renderTaskQueue=new on;var i=e.transformRequest;if(this._transformRequest=i?function(t,e){return i(t,e)||{url:t}}:function(t){return{url:t}},"string"==typeof e.container){var a=t.default.document.getElementById(e.container);if(!a)throw new Error("Container '"+e.container+"' not found.");this._container=a}else{if(!(e.container instanceof ln))throw new Error("Invalid type: 'container' must be a String or HTMLElement.");this._container=e.container}e.maxBounds&&this.setMaxBounds(e.maxBounds),t.bindAll(["_onWindowOnline","_onWindowResize","_contextLost","_contextRestored","_update","_render","_onData","_onDataLoading"],this),this._setupContainer(),this._setupPainter(),this.on("move",this._update.bind(this,!1)),this.on("zoom",this._update.bind(this,!0)),void 0!==t.default&&(t.default.addEventListener("online",this._onWindowOnline,!1),t.default.addEventListener("resize",this._onWindowResize,!1)),function(t,e){var r=t.getCanvasContainer(),n=null,i=!1;for(var a in en)t[a]=new en[a](t,e),e.interactive&&e[a]&&t[a].enable(e[a]);s.addEventListener(r,"mouseout",function(e){t.fire(new Vr("mouseout",t,e))}),s.addEventListener(r,"mousedown",function(r){i=!0;var n=new Vr("mousedown",t,r);t.fire(n),n.defaultPrevented||(e.interactive&&!t.doubleClickZoom.isActive()&&t.stop(),t.boxZoom.onMouseDown(r),t.boxZoom.isActive()||t.dragPan.isActive()||t.dragRotate.onMouseDown(r),t.boxZoom.isActive()||t.dragRotate.isActive()||t.dragPan.onMouseDown(r))}),s.addEventListener(r,"mouseup",function(e){var r=t.dragRotate.isActive();n&&!r&&t.fire(new Vr("contextmenu",t,n)),n=null,i=!1,t.fire(new Vr("mouseup",t,e))}),s.addEventListener(r,"mousemove",function(e){if(!t.dragPan.isActive()&&!t.dragRotate.isActive()){for(var n=e.toElement||e.target;n&&n!==r;)n=n.parentNode;n===r&&t.fire(new Vr("mousemove",t,e))}}),s.addEventListener(r,"mouseover",function(e){for(var n=e.toElement||e.target;n&&n!==r;)n=n.parentNode;n===r&&t.fire(new Vr("mouseover",t,e))}),s.addEventListener(r,"touchstart",function(r){var n=new Ur("touchstart",t,r);t.fire(n),n.defaultPrevented||(e.interactive&&t.stop(),t.boxZoom.isActive()||t.dragRotate.isActive()||t.dragPan.onTouchStart(r),t.touchZoomRotate.onStart(r),t.doubleClickZoom.onTouchStart(n))},{passive:!1}),s.addEventListener(r,"touchmove",function(e){t.fire(new Ur("touchmove",t,e))},{passive:!1}),s.addEventListener(r,"touchend",function(e){t.fire(new Ur("touchend",t,e))}),s.addEventListener(r,"touchcancel",function(e){t.fire(new Ur("touchcancel",t,e))}),s.addEventListener(r,"click",function(e){t.fire(new Vr("click",t,e))}),s.addEventListener(r,"dblclick",function(e){var r=new Vr("dblclick",t,e);t.fire(r),r.defaultPrevented||t.doubleClickZoom.onDblClick(r)}),s.addEventListener(r,"contextmenu",function(e){var r=t.dragRotate.isActive();i||r?i&&(n=e):t.fire(new Vr("contextmenu",t,e)),e.preventDefault()}),s.addEventListener(r,"wheel",function(e){var r=new Hr("wheel",t,e);t.fire(r),r.defaultPrevented||t.scrollZoom.onWheel(e)},{passive:!1})}(this,e),this._hash=e.hash&&(new jr).addTo(this),this._hash&&this._hash._onHashChange()||this.jumpTo({center:e.center,zoom:e.zoom,bearing:e.bearing,pitch:e.pitch}),this.resize(),e.style&&this.setStyle(e.style,{localIdeographFontFamily:e.localIdeographFontFamily}),e.attributionControl&&this.addControl(new nn),this.addControl(new an,e.logoPosition),this.on("style.load",function(){this.transform.unmodified&&this.jumpTo(this.style.stylesheet)}),this.on("data",this._onData),this.on("dataloading",this._onDataLoading)}r&&(n.__proto__=r),n.prototype=Object.create(r&&r.prototype),n.prototype.constructor=n;var i={showTileBoundaries:{configurable:!0},showCollisionBoxes:{configurable:!0},showOverdrawInspector:{configurable:!0},repaint:{configurable:!0},vertices:{configurable:!0}};return n.prototype.addControl=function(t,e){void 0===e&&t.getDefaultPosition&&(e=t.getDefaultPosition()),void 0===e&&(e="top-right");var r=t.onAdd(this),n=this._controlPositions[e];return-1!==e.indexOf("bottom")?n.insertBefore(r,n.firstChild):n.appendChild(r),this},n.prototype.removeControl=function(t){return t.onRemove(this),this},n.prototype.resize=function(e){var r=this._containerDimensions(),n=r[0],i=r[1];return this._resizeCanvas(n,i),this.transform.resize(n,i),this.painter.resize(n,i),this.fire(new t.Event("movestart",e)).fire(new t.Event("move",e)).fire(new t.Event("resize",e)).fire(new t.Event("moveend",e))},n.prototype.getBounds=function(){var e=new Y(this.transform.pointLocation(new t.default$1(0,this.transform.height)),this.transform.pointLocation(new t.default$1(this.transform.width,0)));return(this.transform.angle||this.transform.pitch)&&(e.extend(this.transform.pointLocation(new t.default$1(this.transform.size.x,0))),e.extend(this.transform.pointLocation(new t.default$1(0,this.transform.size.y)))),e},n.prototype.getMaxBounds=function(){return this.transform.latRange&&2===this.transform.latRange.length&&this.transform.lngRange&&2===this.transform.lngRange.length?new Y([this.transform.lngRange[0],this.transform.latRange[0]],[this.transform.lngRange[1],this.transform.latRange[1]]):null},n.prototype.setMaxBounds=function(t){if(t){var e=Y.convert(t);this.transform.lngRange=[e.getWest(),e.getEast()],this.transform.latRange=[e.getSouth(),e.getNorth()],this.transform._constrain(),this._update()}else null==t&&(this.transform.lngRange=null,this.transform.latRange=null,this._update());return this},n.prototype.setMinZoom=function(t){if((t=null==t?0:t)>=0&&t<=this.transform.maxZoom)return this.transform.minZoom=t,this._update(),this.getZoom()<t&&this.setZoom(t),this;throw new Error("minZoom must be between 0 and the current maxZoom, inclusive")},n.prototype.getMinZoom=function(){return this.transform.minZoom},n.prototype.setMaxZoom=function(t){if((t=null==t?22:t)>=this.transform.minZoom)return this.transform.maxZoom=t,this._update(),this.getZoom()>t&&this.setZoom(t),this;throw new Error("maxZoom must be greater than the current minZoom")},n.prototype.getRenderWorldCopies=function(){return this.transform.renderWorldCopies},n.prototype.setRenderWorldCopies=function(t){return this.transform.renderWorldCopies=t,this._update(),this},n.prototype.getMaxZoom=function(){return this.transform.maxZoom},n.prototype.project=function(t){return this.transform.locationPoint(G.convert(t))},n.prototype.unproject=function(e){return this.transform.pointLocation(t.default$1.convert(e))},n.prototype.isMoving=function(){return this._moving||this.dragPan.isActive()||this.dragRotate.isActive()||this.scrollZoom.isActive()},n.prototype.isZooming=function(){return this._zooming||this.scrollZoom.isActive()},n.prototype.isRotating=function(){return this._rotating||this.dragRotate.isActive()},n.prototype.on=function(t,e,n){var i,a=this;if(void 0===n)return r.prototype.on.call(this,t,e);var o=function(){if("mouseenter"===t||"mouseover"===t){var r=!1;return{layer:e,listener:n,delegates:{mousemove:function(i){var o=a.getLayer(e)?a.queryRenderedFeatures(i.point,{layers:[e]}):[];o.length?r||(r=!0,n.call(a,new Vr(t,a,i.originalEvent,{features:o}))):r=!1},mouseout:function(){r=!1}}}}if("mouseleave"===t||"mouseout"===t){var o=!1;return{layer:e,listener:n,delegates:{mousemove:function(r){(a.getLayer(e)?a.queryRenderedFeatures(r.point,{layers:[e]}):[]).length?o=!0:o&&(o=!1,n.call(a,new Vr(t,a,r.originalEvent)))},mouseout:function(e){o&&(o=!1,n.call(a,new Vr(t,a,e.originalEvent)))}}}}return{layer:e,listener:n,delegates:(i={},i[t]=function(t){var r=a.getLayer(e)?a.queryRenderedFeatures(t.point,{layers:[e]}):[];r.length&&(t.features=r,n.call(a,t),delete t.features)},i)}}();for(var s in this._delegatedListeners=this._delegatedListeners||{},this._delegatedListeners[t]=this._delegatedListeners[t]||[],this._delegatedListeners[t].push(o),o.delegates)a.on(s,o.delegates[s]);return this},n.prototype.off=function(t,e,n){if(void 0===n)return r.prototype.off.call(this,t,e);if(this._delegatedListeners&&this._delegatedListeners[t])for(var i=this._delegatedListeners[t],a=0;a<i.length;a++){var o=i[a];if(o.layer===e&&o.listener===n){for(var s in o.delegates)this.off(s,o.delegates[s]);return i.splice(a,1),this}}return this},n.prototype.queryRenderedFeatures=function(e,r){var n;return 2===arguments.length?(e=arguments[0],r=arguments[1]):1===arguments.length&&((n=arguments[0])instanceof t.default$1||Array.isArray(n))?(e=arguments[0],r={}):1===arguments.length?(e=void 0,r=arguments[0]):(e=void 0,r={}),this.style?this.style.queryRenderedFeatures(this._makeQueryGeometry(e),r,this.transform):[]},n.prototype._makeQueryGeometry=function(e){var r,n=this;if(void 0===e&&(e=[t.default$1.convert([0,0]),t.default$1.convert([this.transform.width,this.transform.height])]),e instanceof t.default$1||"number"==typeof e[0])r=[t.default$1.convert(e)];else{var i=[t.default$1.convert(e[0]),t.default$1.convert(e[1])];r=[i[0],new t.default$1(i[1].x,i[0].y),i[1],new t.default$1(i[0].x,i[1].y),i[0]]}return{viewport:r,worldCoordinate:r.map(function(t){return n.transform.pointCoordinate(t)})}},n.prototype.querySourceFeatures=function(t,e){return this.style.querySourceFeatures(t,e)},n.prototype.setStyle=function(e,r){if((!r||!1!==r.diff&&!r.localIdeographFontFamily)&&this.style&&e&&"object"==typeof e)try{return this.style.setState(e)&&this._update(!0),this}catch(e){t.warnOnce("Unable to perform style diff: "+(e.message||e.error||e)+".  Rebuilding the style from scratch.")}return this.style&&(this.style.setEventedParent(null),this.style._remove()),e?(this.style=new Je(this,r||{}),this.style.setEventedParent(this,{style:this.style}),"string"==typeof e?this.style.loadURL(e):this.style.loadJSON(e),this):(delete this.style,this)},n.prototype.getStyle=function(){if(this.style)return this.style.serialize()},n.prototype.isStyleLoaded=function(){return this.style?this.style.loaded():t.warnOnce("There is no style added to the map.")},n.prototype.addSource=function(t,e){return this.style.addSource(t,e),this._update(!0),this},n.prototype.isSourceLoaded=function(e){var r=this.style&&this.style.sourceCaches[e];if(void 0!==r)return r.loaded();this.fire(new t.ErrorEvent(new Error("There is no source with ID '"+e+"'")))},n.prototype.areTilesLoaded=function(){var t=this.style&&this.style.sourceCaches;for(var e in t){var r=t[e]._tiles;for(var n in r){var i=r[n];if("loaded"!==i.state&&"errored"!==i.state)return!1}}return!0},n.prototype.addSourceType=function(t,e,r){return this.style.addSourceType(t,e,r)},n.prototype.removeSource=function(t){return this.style.removeSource(t),this._update(!0),this},n.prototype.getSource=function(t){return this.style.getSource(t)},n.prototype.addImage=function(e,r,n){void 0===n&&(n={});var i=n.pixelRatio;void 0===i&&(i=1);var o=n.sdf;if(void 0===o&&(o=!1),r instanceof sn){var s=a.getImageData(r),l=s.width,c=s.height,u=s.data;this.style.addImage(e,{data:new t.RGBAImage({width:l,height:c},u),pixelRatio:i,sdf:o})}else{if(void 0===r.width||void 0===r.height)return this.fire(new t.ErrorEvent(new Error("Invalid arguments to map.addImage(). The second argument must be an `HTMLImageElement`, `ImageData`, or object with `width`, `height`, and `data` properties with the same format as `ImageData`")));var f=r.width,h=r.height,p=r.data;this.style.addImage(e,{data:new t.RGBAImage({width:f,height:h},p.slice(0)),pixelRatio:i,sdf:o})}},n.prototype.hasImage=function(e){return e?!!this.style.getImage(e):(this.fire(new t.ErrorEvent(new Error("Missing required image id"))),!1)},n.prototype.removeImage=function(t){this.style.removeImage(t)},n.prototype.loadImage=function(e,r){t.getImage(this._transformRequest(e,t.ResourceType.Image),r)},n.prototype.addLayer=function(t,e){return this.style.addLayer(t,e),this._update(!0),this},n.prototype.moveLayer=function(t,e){return this.style.moveLayer(t,e),this._update(!0),this},n.prototype.removeLayer=function(t){return this.style.removeLayer(t),this._update(!0),this},n.prototype.getLayer=function(t){return this.style.getLayer(t)},n.prototype.setFilter=function(t,e){return this.style.setFilter(t,e),this._update(!0),this},n.prototype.setLayerZoomRange=function(t,e,r){return this.style.setLayerZoomRange(t,e,r),this._update(!0),this},n.prototype.getFilter=function(t){return this.style.getFilter(t)},n.prototype.setPaintProperty=function(t,e,r){return this.style.setPaintProperty(t,e,r),this._update(!0),this},n.prototype.getPaintProperty=function(t,e){return this.style.getPaintProperty(t,e)},n.prototype.setLayoutProperty=function(t,e,r){return this.style.setLayoutProperty(t,e,r),this._update(!0),this},n.prototype.getLayoutProperty=function(t,e){return this.style.getLayoutProperty(t,e)},n.prototype.setLight=function(t){return this.style.setLight(t),this._update(!0),this},n.prototype.getLight=function(){return this.style.getLight()},n.prototype.getContainer=function(){return this._container},n.prototype.getCanvasContainer=function(){return this._canvasContainer},n.prototype.getCanvas=function(){return this._canvas},n.prototype._containerDimensions=function(){var t=0,e=0;return this._container&&(t=this._container.offsetWidth||400,e=this._container.offsetHeight||300),[t,e]},n.prototype._setupContainer=function(){var t=this._container;t.classList.add("mapboxgl-map"),(this._missingCSSContainer=s.create("div","mapboxgl-missing-css",t)).innerHTML="Missing Mapbox GL JS CSS";var e=this._canvasContainer=s.create("div","mapboxgl-canvas-container",t);this._interactive&&e.classList.add("mapboxgl-interactive"),this._canvas=s.create("canvas","mapboxgl-canvas",e),this._canvas.style.position="absolute",this._canvas.addEventListener("webglcontextlost",this._contextLost,!1),this._canvas.addEventListener("webglcontextrestored",this._contextRestored,!1),this._canvas.setAttribute("tabindex","0"),this._canvas.setAttribute("aria-label","Map");var r=this._containerDimensions();this._resizeCanvas(r[0],r[1]);var n=this._controlContainer=s.create("div","mapboxgl-control-container",t),i=this._controlPositions={};["top-left","top-right","bottom-left","bottom-right"].forEach(function(t){i[t]=s.create("div","mapboxgl-ctrl-"+t,n)})},n.prototype._resizeCanvas=function(e,r){var n=t.default.devicePixelRatio||1;this._canvas.width=n*e,this._canvas.height=n*r,this._canvas.style.width=e+"px",this._canvas.style.height=r+"px"},n.prototype._setupPainter=function(){var r=t.extend({failIfMajorPerformanceCaveat:this._failIfMajorPerformanceCaveat,preserveDrawingBuffer:this._preserveDrawingBuffer},e.webGLContextAttributes),n=this._canvas.getContext("webgl",r)||this._canvas.getContext("experimental-webgl",r);n?this.painter=new zr(n,this.transform):this.fire(new t.ErrorEvent(new Error("Failed to initialize WebGL")))},n.prototype._contextLost=function(e){e.preventDefault(),this._frameId&&(a.cancelFrame(this._frameId),this._frameId=null),this.fire(new t.Event("webglcontextlost",{originalEvent:e}))},n.prototype._contextRestored=function(e){this._setupPainter(),this.resize(),this._update(),this.fire(new t.Event("webglcontextrestored",{originalEvent:e}))},n.prototype.loaded=function(){return!this._styleDirty&&!this._sourcesDirty&&!(!this.style||!this.style.loaded())},n.prototype._update=function(t){this.style&&(this._styleDirty=this._styleDirty||t,this._sourcesDirty=!0,this._rerender())},n.prototype._requestRenderFrame=function(t){return this._update(),this._renderTaskQueue.add(t)},n.prototype._cancelRenderFrame=function(t){this._renderTaskQueue.remove(t)},n.prototype._render=function(){this._renderTaskQueue.run();var e=!1;if(this.style&&this._styleDirty){this._styleDirty=!1;var r=this.transform.zoom,n=a.now();this.style.zoomHistory.update(r,n);var i=new t.default$16(r,{now:n,fadeDuration:this._fadeDuration,zoomHistory:this.style.zoomHistory,transition:this.style.getTransition()}),o=i.crossFadingFactor();1===o&&o===this._crossFadingFactor||(e=!0,this._crossFadingFactor=o),this.style.update(i)}return this.style&&this._sourcesDirty&&(this._sourcesDirty=!1,this.style._updateSources(this.transform)),this._placementDirty=this.style&&this.style._updatePlacement(this.painter.transform,this.showCollisionBoxes,this._fadeDuration),this.painter.render(this.style,{showTileBoundaries:this.showTileBoundaries,showOverdrawInspector:this._showOverdrawInspector,rotating:this.isRotating(),zooming:this.isZooming(),fadeDuration:this._fadeDuration}),this.fire(new t.Event("render")),this.loaded()&&!this._loaded&&(this._loaded=!0,this.fire(new t.Event("load"))),this.style&&(this.style.hasTransitions()||e)&&(this._styleDirty=!0),(this._sourcesDirty||this._repaint||this._styleDirty||this._placementDirty)&&this._rerender(),this},n.prototype.remove=function(){this._hash&&this._hash.remove(),a.cancelFrame(this._frameId),this._renderTaskQueue.clear(),this._frameId=null,this.setStyle(null),void 0!==t.default&&(t.default.removeEventListener("resize",this._onWindowResize,!1),t.default.removeEventListener("online",this._onWindowOnline,!1));var e=this.painter.context.gl.getExtension("WEBGL_lose_context");e&&e.loseContext(),fn(this._canvasContainer),fn(this._controlContainer),fn(this._missingCSSContainer),this._container.classList.remove("mapboxgl-map"),this.fire(new t.Event("remove"))},n.prototype._rerender=function(){var t=this;this.style&&!this._frameId&&(this._frameId=a.frame(function(){t._frameId=null,t._render()}))},n.prototype._onWindowOnline=function(){this._update()},n.prototype._onWindowResize=function(){this._trackResize&&this.stop().resize()._update()},i.showTileBoundaries.get=function(){return!!this._showTileBoundaries},i.showTileBoundaries.set=function(t){this._showTileBoundaries!==t&&(this._showTileBoundaries=t,this._update())},i.showCollisionBoxes.get=function(){return!!this._showCollisionBoxes},i.showCollisionBoxes.set=function(t){this._showCollisionBoxes!==t&&(this._showCollisionBoxes=t,t?this.style._generateCollisionBoxes():this._update())},i.showOverdrawInspector.get=function(){return!!this._showOverdrawInspector},i.showOverdrawInspector.set=function(t){this._showOverdrawInspector!==t&&(this._showOverdrawInspector=t,this._update())},i.repaint.get=function(){return!!this._repaint},i.repaint.set=function(t){this._repaint=t,this._update()},i.vertices.get=function(){return!!this._vertices},i.vertices.set=function(t){this._vertices=t,this._update()},n.prototype._onData=function(e){this._update("style"===e.dataType),this.fire(new t.Event(e.dataType+"data",e))},n.prototype._onDataLoading=function(e){this.fire(new t.Event(e.dataType+"dataloading",e))},Object.defineProperties(n.prototype,i),n}(rn);function fn(t){t.parentNode&&t.parentNode.removeChild(t)}var hn={showCompass:!0,showZoom:!0},pn=function(e){var r=this;this.options=t.extend({},hn,e),this._container=s.create("div","mapboxgl-ctrl mapboxgl-ctrl-group"),this._container.addEventListener("contextmenu",function(t){return t.preventDefault()}),this.options.showZoom&&(this._zoomInButton=this._createButton("mapboxgl-ctrl-icon mapboxgl-ctrl-zoom-in","Zoom In",function(){return r._map.zoomIn()}),this._zoomOutButton=this._createButton("mapboxgl-ctrl-icon mapboxgl-ctrl-zoom-out","Zoom Out",function(){return r._map.zoomOut()})),this.options.showCompass&&(t.bindAll(["_rotateCompassArrow"],this),this._compass=this._createButton("mapboxgl-ctrl-icon mapboxgl-ctrl-compass","Reset North",function(){return r._map.resetNorth()}),this._compassArrow=s.create("span","mapboxgl-ctrl-compass-arrow",this._compass))};function dn(t,e,r){if(t=new G(t.lng,t.lat),e){var n=new G(t.lng-360,t.lat),i=new G(t.lng+360,t.lat),a=r.locationPoint(t).distSqr(e);r.locationPoint(n).distSqr(e)<a?t=n:r.locationPoint(i).distSqr(e)<a&&(t=i)}for(;Math.abs(t.lng-r.center.lng)>180;){var o=r.locationPoint(t);if(o.x>=0&&o.y>=0&&o.x<=r.width&&o.y<=r.height)break;t.lng>r.center.lng?t.lng-=360:t.lng+=360}return t}pn.prototype._rotateCompassArrow=function(){var t="rotate("+this._map.transform.angle*(180/Math.PI)+"deg)";this._compassArrow.style.transform=t},pn.prototype.onAdd=function(t){return this._map=t,this.options.showCompass&&(this._map.on("rotate",this._rotateCompassArrow),this._rotateCompassArrow(),this._handler=new Wr(t,{button:"left",element:this._compass}),this._handler.enable()),this._container},pn.prototype.onRemove=function(){s.remove(this._container),this.options.showCompass&&(this._map.off("rotate",this._rotateCompassArrow),this._handler.disable(),delete this._handler),delete this._map},pn.prototype._createButton=function(t,e,r){var n=s.create("button",t,this._container);return n.type="button",n.setAttribute("aria-label",e),n.addEventListener("click",r),n};var gn={center:"translate(-50%,-50%)",top:"translate(-50%,0)","top-left":"translate(0,0)","top-right":"translate(-100%,0)",bottom:"translate(-50%,-100%)","bottom-left":"translate(0,-100%)","bottom-right":"translate(-100%,-100%)",left:"translate(0,-50%)",right:"translate(-100%,-50%)"};function vn(t,e,r){var n=t.classList;for(var i in gn)n.remove("mapboxgl-"+r+"-anchor-"+i);n.add("mapboxgl-"+r+"-anchor-"+e)}var mn=function(e){if((arguments[0]instanceof t.default.HTMLElement||2===arguments.length)&&(e=t.extend({element:e},arguments[1])),t.bindAll(["_update","_onMapClick"],this),this._anchor=e&&e.anchor||"center",this._color=e&&e.color||"#3FB1CE",e&&e.element)this._element=e.element,this._offset=t.default$1.convert(e&&e.offset||[0,0]);else{this._defaultMarker=!0,this._element=s.create("div");var r=s.createNS("http://www.w3.org/2000/svg","svg");r.setAttributeNS(null,"height","41px"),r.setAttributeNS(null,"width","27px"),r.setAttributeNS(null,"viewBox","0 0 27 41");var n=s.createNS("http://www.w3.org/2000/svg","g");n.setAttributeNS(null,"stroke","none"),n.setAttributeNS(null,"stroke-width","1"),n.setAttributeNS(null,"fill","none"),n.setAttributeNS(null,"fill-rule","evenodd");var i=s.createNS("http://www.w3.org/2000/svg","g");i.setAttributeNS(null,"fill-rule","nonzero");var a=s.createNS("http://www.w3.org/2000/svg","g");a.setAttributeNS(null,"transform","translate(3.0, 29.0)"),a.setAttributeNS(null,"fill","#000000");for(var o=0,l=[{rx:"10.5",ry:"5.25002273"},{rx:"10.5",ry:"5.25002273"},{rx:"9.5",ry:"4.77275007"},{rx:"8.5",ry:"4.29549936"},{rx:"7.5",ry:"3.81822308"},{rx:"6.5",ry:"3.34094679"},{rx:"5.5",ry:"2.86367051"},{rx:"4.5",ry:"2.38636864"}];o<l.length;o+=1){var c=l[o],u=s.createNS("http://www.w3.org/2000/svg","ellipse");u.setAttributeNS(null,"opacity","0.04"),u.setAttributeNS(null,"cx","10.5"),u.setAttributeNS(null,"cy","5.80029008"),u.setAttributeNS(null,"rx",c.rx),u.setAttributeNS(null,"ry",c.ry),a.appendChild(u)}var f=s.createNS("http://www.w3.org/2000/svg","g");f.setAttributeNS(null,"fill",this._color);var h=s.createNS("http://www.w3.org/2000/svg","path");h.setAttributeNS(null,"d","M27,13.5 C27,19.074644 20.250001,27.000002 14.75,34.500002 C14.016665,35.500004 12.983335,35.500004 12.25,34.500002 C6.7499993,27.000002 0,19.222562 0,13.5 C0,6.0441559 6.0441559,0 13.5,0 C20.955844,0 27,6.0441559 27,13.5 Z"),f.appendChild(h);var p=s.createNS("http://www.w3.org/2000/svg","g");p.setAttributeNS(null,"opacity","0.25"),p.setAttributeNS(null,"fill","#000000");var d=s.createNS("http://www.w3.org/2000/svg","path");d.setAttributeNS(null,"d","M13.5,0 C6.0441559,0 0,6.0441559 0,13.5 C0,19.222562 6.7499993,27 12.25,34.5 C13,35.522727 14.016664,35.500004 14.75,34.5 C20.250001,27 27,19.074644 27,13.5 C27,6.0441559 20.955844,0 13.5,0 Z M13.5,1 C20.415404,1 26,6.584596 26,13.5 C26,15.898657 24.495584,19.181431 22.220703,22.738281 C19.945823,26.295132 16.705119,30.142167 13.943359,33.908203 C13.743445,34.180814 13.612715,34.322738 13.5,34.441406 C13.387285,34.322738 13.256555,34.180814 13.056641,33.908203 C10.284481,30.127985 7.4148684,26.314159 5.015625,22.773438 C2.6163816,19.232715 1,15.953538 1,13.5 C1,6.584596 6.584596,1 13.5,1 Z"),p.appendChild(d);var g=s.createNS("http://www.w3.org/2000/svg","g");g.setAttributeNS(null,"transform","translate(6.0, 7.0)"),g.setAttributeNS(null,"fill","#FFFFFF");var v=s.createNS("http://www.w3.org/2000/svg","g");v.setAttributeNS(null,"transform","translate(8.0, 8.0)");var m=s.createNS("http://www.w3.org/2000/svg","circle");m.setAttributeNS(null,"fill","#000000"),m.setAttributeNS(null,"opacity","0.25"),m.setAttributeNS(null,"cx","5.5"),m.setAttributeNS(null,"cy","5.5"),m.setAttributeNS(null,"r","5.4999962");var y=s.createNS("http://www.w3.org/2000/svg","circle");y.setAttributeNS(null,"fill","#FFFFFF"),y.setAttributeNS(null,"cx","5.5"),y.setAttributeNS(null,"cy","5.5"),y.setAttributeNS(null,"r","5.4999962"),v.appendChild(m),v.appendChild(y),i.appendChild(a),i.appendChild(f),i.appendChild(p),i.appendChild(g),i.appendChild(v),r.appendChild(i),this._element.appendChild(r),this._offset=t.default$1.convert(e&&e.offset||[0,-14])}this._element.classList.add("mapboxgl-marker"),this._popup=null};mn.prototype.addTo=function(t){return this.remove(),this._map=t,t.getCanvasContainer().appendChild(this._element),t.on("move",this._update),t.on("moveend",this._update),this._update(),this._map.on("click",this._onMapClick),this},mn.prototype.remove=function(){return this._map&&(this._map.off("click",this._onMapClick),this._map.off("move",this._update),this._map.off("moveend",this._update),delete this._map),s.remove(this._element),this._popup&&this._popup.remove(),this},mn.prototype.getLngLat=function(){return this._lngLat},mn.prototype.setLngLat=function(t){return this._lngLat=G.convert(t),this._pos=null,this._popup&&this._popup.setLngLat(this._lngLat),this._update(),this},mn.prototype.getElement=function(){return this._element},mn.prototype.setPopup=function(t){if(this._popup&&(this._popup.remove(),this._popup=null),t){if(!("offset"in t.options)){var e=Math.sqrt(Math.pow(13.5,2)/2);t.options.offset=this._defaultMarker?{top:[0,0],"top-left":[0,0],"top-right":[0,0],bottom:[0,-38.1],"bottom-left":[e,-1*(24.6+e)],"bottom-right":[-e,-1*(24.6+e)],left:[13.5,-24.6],right:[-13.5,-24.6]}:this._offset}this._popup=t,this._lngLat&&this._popup.setLngLat(this._lngLat)}return this},mn.prototype._onMapClick=function(t){var e=t.originalEvent.target,r=this._element;this._popup&&(e===r||r.contains(e))&&this.togglePopup()},mn.prototype.getPopup=function(){return this._popup},mn.prototype.togglePopup=function(){var t=this._popup;return t?(t.isOpen()?t.remove():t.addTo(this._map),this):this},mn.prototype._update=function(t){this._map&&(this._map.transform.renderWorldCopies&&(this._lngLat=dn(this._lngLat,this._pos,this._map.transform)),this._pos=this._map.project(this._lngLat)._add(this._offset),t&&"moveend"!==t.type||(this._pos=this._pos.round()),s.setTransform(this._element,gn[this._anchor]+" translate("+this._pos.x+"px, "+this._pos.y+"px)"),vn(this._element,this._anchor,"marker"))},mn.prototype.getOffset=function(){return this._offset},mn.prototype.setOffset=function(e){return this._offset=t.default$1.convert(e),this._update(),this};var yn,xn={positionOptions:{enableHighAccuracy:!1,maximumAge:0,timeout:6e3},fitBoundsOptions:{maxZoom:15},trackUserLocation:!1,showUserLocation:!0},bn=function(e){function r(r){e.call(this),this.options=t.extend({},xn,r),t.bindAll(["_onSuccess","_onError","_finish","_setupUI","_updateCamera","_updateMarker"],this)}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.onAdd=function(e){var r;return this._map=e,this._container=s.create("div","mapboxgl-ctrl mapboxgl-ctrl-group"),r=this._setupUI,void 0!==yn?r(yn):void 0!==t.default.navigator.permissions?t.default.navigator.permissions.query({name:"geolocation"}).then(function(t){yn="denied"!==t.state,r(yn)}):(yn=!!t.default.navigator.geolocation,r(yn)),this._container},r.prototype.onRemove=function(){void 0!==this._geolocationWatchID&&(t.default.navigator.geolocation.clearWatch(this._geolocationWatchID),this._geolocationWatchID=void 0),this.options.showUserLocation&&this._userLocationDotMarker.remove(),s.remove(this._container),this._map=void 0},r.prototype._onSuccess=function(e){if(this.options.trackUserLocation)switch(this._lastKnownPosition=e,this._watchState){case"WAITING_ACTIVE":case"ACTIVE_LOCK":case"ACTIVE_ERROR":this._watchState="ACTIVE_LOCK",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active");break;case"BACKGROUND":case"BACKGROUND_ERROR":this._watchState="BACKGROUND",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background")}this.options.showUserLocation&&"OFF"!==this._watchState&&this._updateMarker(e),this.options.trackUserLocation&&"ACTIVE_LOCK"!==this._watchState||this._updateCamera(e),this.options.showUserLocation&&this._dotElement.classList.remove("mapboxgl-user-location-dot-stale"),this.fire(new t.Event("geolocate",e)),this._finish()},r.prototype._updateCamera=function(t){var e=new G(t.coords.longitude,t.coords.latitude),r=t.coords.accuracy;this._map.fitBounds(e.toBounds(r),this.options.fitBoundsOptions,{geolocateSource:!0})},r.prototype._updateMarker=function(t){t?this._userLocationDotMarker.setLngLat([t.coords.longitude,t.coords.latitude]).addTo(this._map):this._userLocationDotMarker.remove()},r.prototype._onError=function(e){if(this.options.trackUserLocation)if(1===e.code)this._watchState="OFF",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background-error"),void 0!==this._geolocationWatchID&&this._clearWatch();else switch(this._watchState){case"WAITING_ACTIVE":this._watchState="ACTIVE_ERROR",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active-error");break;case"ACTIVE_LOCK":this._watchState="ACTIVE_ERROR",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting");break;case"BACKGROUND":this._watchState="BACKGROUND_ERROR",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting")}"OFF"!==this._watchState&&this.options.showUserLocation&&this._dotElement.classList.add("mapboxgl-user-location-dot-stale"),this.fire(new t.Event("error",e)),this._finish()},r.prototype._finish=function(){this._timeoutId&&clearTimeout(this._timeoutId),this._timeoutId=void 0},r.prototype._setupUI=function(e){var r=this;!1!==e&&(this._container.addEventListener("contextmenu",function(t){return t.preventDefault()}),this._geolocateButton=s.create("button","mapboxgl-ctrl-icon mapboxgl-ctrl-geolocate",this._container),this._geolocateButton.type="button",this._geolocateButton.setAttribute("aria-label","Geolocate"),this.options.trackUserLocation&&(this._geolocateButton.setAttribute("aria-pressed","false"),this._watchState="OFF"),this.options.showUserLocation&&(this._dotElement=s.create("div","mapboxgl-user-location-dot"),this._userLocationDotMarker=new mn(this._dotElement),this.options.trackUserLocation&&(this._watchState="OFF")),this._geolocateButton.addEventListener("click",this.trigger.bind(this)),this._setup=!0,this.options.trackUserLocation&&this._map.on("movestart",function(e){e.geolocateSource||"ACTIVE_LOCK"!==r._watchState||(r._watchState="BACKGROUND",r._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background"),r._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),r.fire(new t.Event("trackuserlocationend")))}))},r.prototype.trigger=function(){if(!this._setup)return t.warnOnce("Geolocate control triggered before added to a map"),!1;if(this.options.trackUserLocation){switch(this._watchState){case"OFF":this._watchState="WAITING_ACTIVE",this.fire(new t.Event("trackuserlocationstart"));break;case"WAITING_ACTIVE":case"ACTIVE_LOCK":case"ACTIVE_ERROR":case"BACKGROUND_ERROR":this._watchState="OFF",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background-error"),this.fire(new t.Event("trackuserlocationend"));break;case"BACKGROUND":this._watchState="ACTIVE_LOCK",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._lastKnownPosition&&this._updateCamera(this._lastKnownPosition),this.fire(new t.Event("trackuserlocationstart"))}switch(this._watchState){case"WAITING_ACTIVE":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active");break;case"ACTIVE_LOCK":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active");break;case"ACTIVE_ERROR":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active-error");break;case"BACKGROUND":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background");break;case"BACKGROUND_ERROR":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background-error")}"OFF"===this._watchState&&void 0!==this._geolocationWatchID?this._clearWatch():void 0===this._geolocationWatchID&&(this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.setAttribute("aria-pressed","true"),this._geolocationWatchID=t.default.navigator.geolocation.watchPosition(this._onSuccess,this._onError,this.options.positionOptions))}else t.default.navigator.geolocation.getCurrentPosition(this._onSuccess,this._onError,this.options.positionOptions),this._timeoutId=setTimeout(this._finish,1e4);return!0},r.prototype._clearWatch=function(){t.default.navigator.geolocation.clearWatch(this._geolocationWatchID),this._geolocationWatchID=void 0,this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.setAttribute("aria-pressed","false"),this.options.showUserLocation&&this._updateMarker(null)},r}(t.Evented),_n={maxWidth:100,unit:"metric"},wn=function(e){this.options=t.extend({},_n,e),t.bindAll(["_onMove","setUnit"],this)};function kn(t,e,r){var n,i,a,o,s,l,c=r&&r.maxWidth||100,u=t._container.clientHeight/2,f=(n=t.unproject([0,u]),i=t.unproject([c,u]),a=Math.PI/180,o=n.lat*a,s=i.lat*a,l=Math.sin(o)*Math.sin(s)+Math.cos(o)*Math.cos(s)*Math.cos((i.lng-n.lng)*a),6371e3*Math.acos(Math.min(l,1)));if(r&&"imperial"===r.unit){var h=3.2808*f;h>5280?Tn(e,c,h/5280,"mi"):Tn(e,c,h,"ft")}else r&&"nautical"===r.unit?Tn(e,c,f/1852,"nm"):Tn(e,c,f,"m")}function Tn(t,e,r,n){var i,a,o,s=(i=r,(a=Math.pow(10,(""+Math.floor(i)).length-1))*(o=(o=i/a)>=10?10:o>=5?5:o>=3?3:o>=2?2:1)),l=s/r;"m"===n&&s>=1e3&&(s/=1e3,n="km"),t.style.width=e*l+"px",t.innerHTML=s+n}wn.prototype.getDefaultPosition=function(){return"bottom-left"},wn.prototype._onMove=function(){kn(this._map,this._container,this.options)},wn.prototype.onAdd=function(t){return this._map=t,this._container=s.create("div","mapboxgl-ctrl mapboxgl-ctrl-scale",t.getContainer()),this._map.on("move",this._onMove),this._onMove(),this._container},wn.prototype.onRemove=function(){s.remove(this._container),this._map.off("move",this._onMove),this._map=void 0},wn.prototype.setUnit=function(t){this.options.unit=t,kn(this._map,this._container,this.options)};var An=function(){this._fullscreen=!1,t.bindAll(["_onClickFullscreen","_changeIcon"],this),"onfullscreenchange"in t.default.document?this._fullscreenchange="fullscreenchange":"onmozfullscreenchange"in t.default.document?this._fullscreenchange="mozfullscreenchange":"onwebkitfullscreenchange"in t.default.document?this._fullscreenchange="webkitfullscreenchange":"onmsfullscreenchange"in t.default.document&&(this._fullscreenchange="MSFullscreenChange"),this._className="mapboxgl-ctrl"};An.prototype.onAdd=function(e){return this._map=e,this._mapContainer=this._map.getContainer(),this._container=s.create("div",this._className+" mapboxgl-ctrl-group"),this._checkFullscreenSupport()?this._setupUI():(this._container.style.display="none",t.warnOnce("This device does not support fullscreen mode.")),this._container},An.prototype.onRemove=function(){s.remove(this._container),this._map=null,t.default.document.removeEventListener(this._fullscreenchange,this._changeIcon)},An.prototype._checkFullscreenSupport=function(){return!!(t.default.document.fullscreenEnabled||t.default.document.mozFullScreenEnabled||t.default.document.msFullscreenEnabled||t.default.document.webkitFullscreenEnabled)},An.prototype._setupUI=function(){var e=this._fullscreenButton=s.create("button",this._className+"-icon "+this._className+"-fullscreen",this._container);e.setAttribute("aria-label","Toggle fullscreen"),e.type="button",this._fullscreenButton.addEventListener("click",this._onClickFullscreen),t.default.document.addEventListener(this._fullscreenchange,this._changeIcon)},An.prototype._isFullscreen=function(){return this._fullscreen},An.prototype._changeIcon=function(){(t.default.document.fullscreenElement||t.default.document.mozFullScreenElement||t.default.document.webkitFullscreenElement||t.default.document.msFullscreenElement)===this._mapContainer!==this._fullscreen&&(this._fullscreen=!this._fullscreen,this._fullscreenButton.classList.toggle(this._className+"-shrink"),this._fullscreenButton.classList.toggle(this._className+"-fullscreen"))},An.prototype._onClickFullscreen=function(){this._isFullscreen()?t.default.document.exitFullscreen?t.default.document.exitFullscreen():t.default.document.mozCancelFullScreen?t.default.document.mozCancelFullScreen():t.default.document.msExitFullscreen?t.default.document.msExitFullscreen():t.default.document.webkitCancelFullScreen&&t.default.document.webkitCancelFullScreen():this._mapContainer.requestFullscreen?this._mapContainer.requestFullscreen():this._mapContainer.mozRequestFullScreen?this._mapContainer.mozRequestFullScreen():this._mapContainer.msRequestFullscreen?this._mapContainer.msRequestFullscreen():this._mapContainer.webkitRequestFullscreen&&this._mapContainer.webkitRequestFullscreen()};var Mn={closeButton:!0,closeOnClick:!0},Sn=function(e){function r(r){e.call(this),this.options=t.extend(Object.create(Mn),r),t.bindAll(["_update","_onClickClose"],this)}return e&&(r.__proto__=e),r.prototype=Object.create(e&&e.prototype),r.prototype.constructor=r,r.prototype.addTo=function(e){return this._map=e,this._map.on("move",this._update),this.options.closeOnClick&&this._map.on("click",this._onClickClose),this._update(),this.fire(new t.Event("open")),this},r.prototype.isOpen=function(){return!!this._map},r.prototype.remove=function(){return this._content&&s.remove(this._content),this._container&&(s.remove(this._container),delete this._container),this._map&&(this._map.off("move",this._update),this._map.off("click",this._onClickClose),delete this._map),this.fire(new t.Event("close")),this},r.prototype.getLngLat=function(){return this._lngLat},r.prototype.setLngLat=function(t){return this._lngLat=G.convert(t),this._pos=null,this._update(),this},r.prototype.setText=function(e){return this.setDOMContent(t.default.document.createTextNode(e))},r.prototype.setHTML=function(e){var r,n=t.default.document.createDocumentFragment(),i=t.default.document.createElement("body");for(i.innerHTML=e;r=i.firstChild;)n.appendChild(r);return this.setDOMContent(n)},r.prototype.setDOMContent=function(t){return this._createContent(),this._content.appendChild(t),this._update(),this},r.prototype._createContent=function(){this._content&&s.remove(this._content),this._content=s.create("div","mapboxgl-popup-content",this._container),this.options.closeButton&&(this._closeButton=s.create("button","mapboxgl-popup-close-button",this._content),this._closeButton.type="button",this._closeButton.setAttribute("aria-label","Close popup"),this._closeButton.innerHTML="&#215;",this._closeButton.addEventListener("click",this._onClickClose))},r.prototype._update=function(){if(this._map&&this._lngLat&&this._content){this._container||(this._container=s.create("div","mapboxgl-popup",this._map.getContainer()),this._tip=s.create("div","mapboxgl-popup-tip",this._container),this._container.appendChild(this._content)),this._map.transform.renderWorldCopies&&(this._lngLat=dn(this._lngLat,this._pos,this._map.transform));var e=this._pos=this._map.project(this._lngLat),r=this.options.anchor,n=function e(r){if(r){if("number"==typeof r){var n=Math.round(Math.sqrt(.5*Math.pow(r,2)));return{center:new t.default$1(0,0),top:new t.default$1(0,r),"top-left":new t.default$1(n,n),"top-right":new t.default$1(-n,n),bottom:new t.default$1(0,-r),"bottom-left":new t.default$1(n,-n),"bottom-right":new t.default$1(-n,-n),left:new t.default$1(r,0),right:new t.default$1(-r,0)}}if(r instanceof t.default$1||Array.isArray(r)){var i=t.default$1.convert(r);return{center:i,top:i,"top-left":i,"top-right":i,bottom:i,"bottom-left":i,"bottom-right":i,left:i,right:i}}return{center:t.default$1.convert(r.center||[0,0]),top:t.default$1.convert(r.top||[0,0]),"top-left":t.default$1.convert(r["top-left"]||[0,0]),"top-right":t.default$1.convert(r["top-right"]||[0,0]),bottom:t.default$1.convert(r.bottom||[0,0]),"bottom-left":t.default$1.convert(r["bottom-left"]||[0,0]),"bottom-right":t.default$1.convert(r["bottom-right"]||[0,0]),left:t.default$1.convert(r.left||[0,0]),right:t.default$1.convert(r.right||[0,0])}}return e(new t.default$1(0,0))}(this.options.offset);if(!r){var i,a=this._container.offsetWidth,o=this._container.offsetHeight;i=e.y+n.bottom.y<o?["top"]:e.y>this._map.transform.height-o?["bottom"]:[],e.x<a/2?i.push("left"):e.x>this._map.transform.width-a/2&&i.push("right"),r=0===i.length?"bottom":i.join("-")}var l=e.add(n[r]).round();s.setTransform(this._container,gn[r]+" translate("+l.x+"px,"+l.y+"px)"),vn(this._container,r,"popup")}},r.prototype._onClickClose=function(){this.remove()},r}(t.Evented),En={version:"0.45.0",supported:e,workerCount:Math.max(Math.floor(a.hardwareConcurrency/2),1),setRTLTextPlugin:t.setRTLTextPlugin,Map:un,NavigationControl:pn,GeolocateControl:bn,AttributionControl:nn,ScaleControl:wn,FullscreenControl:An,Popup:Sn,Marker:mn,Style:Je,LngLat:G,LngLatBounds:Y,Point:t.default$1,Evented:t.Evented,config:v,get accessToken(){return v.ACCESS_TOKEN},set accessToken(t){v.ACCESS_TOKEN=t},workerUrl:""};return En}),n})}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{}],422:[function(t,e,r){"use strict";e.exports=function(t){for(var e=1<<t+1,r=new Array(e),n=0;n<e;++n)r[n]=a(t,n);return r};var n=t("convex-hull");function i(t,e,r){for(var n=new Array(t),i=0;i<t;++i)n[i]=0,i===e&&(n[i]+=.5),i===r&&(n[i]+=.5);return n}function a(t,e){if(0===e||e===(1<<t+1)-1)return[];for(var r=[],a=[],o=0;o<=t;++o)if(e&1<<o){r.push(i(t,o-1,o-1)),a.push(null);for(var s=0;s<=t;++s)~e&1<<s&&(r.push(i(t,o-1,s-1)),a.push([o,s]))}var l=n(r),c=[];t:for(o=0;o<l.length;++o){var u=l[o],f=[];for(s=0;s<u.length;++s){if(!a[u[s]])continue t;f.push(a[u[s]].slice())}c.push(f)}return c}},{"convex-hull":123}],423:[function(t,e,r){var n=t("./normalize"),i=t("gl-mat4/create"),a=t("gl-mat4/clone"),o=t("gl-mat4/determinant"),s=t("gl-mat4/invert"),l=t("gl-mat4/transpose"),c={length:t("gl-vec3/length"),normalize:t("gl-vec3/normalize"),dot:t("gl-vec3/dot"),cross:t("gl-vec3/cross")},u=i(),f=i(),h=[0,0,0,0],p=[[0,0,0],[0,0,0],[0,0,0]],d=[0,0,0];function g(t,e,r,n,i){t[0]=e[0]*n+r[0]*i,t[1]=e[1]*n+r[1]*i,t[2]=e[2]*n+r[2]*i}e.exports=function(t,e,r,i,v,m){if(e||(e=[0,0,0]),r||(r=[0,0,0]),i||(i=[0,0,0]),v||(v=[0,0,0,1]),m||(m=[0,0,0,1]),!n(u,t))return!1;if(a(f,u),f[3]=0,f[7]=0,f[11]=0,f[15]=1,Math.abs(o(f)<1e-8))return!1;var y,x,b,_,w,k,T,A=u[3],M=u[7],S=u[11],E=u[12],C=u[13],L=u[14],z=u[15];if(0!==A||0!==M||0!==S){if(h[0]=A,h[1]=M,h[2]=S,h[3]=z,!s(f,f))return!1;l(f,f),y=v,b=f,_=(x=h)[0],w=x[1],k=x[2],T=x[3],y[0]=b[0]*_+b[4]*w+b[8]*k+b[12]*T,y[1]=b[1]*_+b[5]*w+b[9]*k+b[13]*T,y[2]=b[2]*_+b[6]*w+b[10]*k+b[14]*T,y[3]=b[3]*_+b[7]*w+b[11]*k+b[15]*T}else v[0]=v[1]=v[2]=0,v[3]=1;if(e[0]=E,e[1]=C,e[2]=L,function(t,e){t[0][0]=e[0],t[0][1]=e[1],t[0][2]=e[2],t[1][0]=e[4],t[1][1]=e[5],t[1][2]=e[6],t[2][0]=e[8],t[2][1]=e[9],t[2][2]=e[10]}(p,u),r[0]=c.length(p[0]),c.normalize(p[0],p[0]),i[0]=c.dot(p[0],p[1]),g(p[1],p[1],p[0],1,-i[0]),r[1]=c.length(p[1]),c.normalize(p[1],p[1]),i[0]/=r[1],i[1]=c.dot(p[0],p[2]),g(p[2],p[2],p[0],1,-i[1]),i[2]=c.dot(p[1],p[2]),g(p[2],p[2],p[1],1,-i[2]),r[2]=c.length(p[2]),c.normalize(p[2],p[2]),i[1]/=r[2],i[2]/=r[2],c.cross(d,p[1],p[2]),c.dot(p[0],d)<0)for(var O=0;O<3;O++)r[O]*=-1,p[O][0]*=-1,p[O][1]*=-1,p[O][2]*=-1;return m[0]=.5*Math.sqrt(Math.max(1+p[0][0]-p[1][1]-p[2][2],0)),m[1]=.5*Math.sqrt(Math.max(1-p[0][0]+p[1][1]-p[2][2],0)),m[2]=.5*Math.sqrt(Math.max(1-p[0][0]-p[1][1]+p[2][2],0)),m[3]=.5*Math.sqrt(Math.max(1+p[0][0]+p[1][1]+p[2][2],0)),p[2][1]>p[1][2]&&(m[0]=-m[0]),p[0][2]>p[2][0]&&(m[1]=-m[1]),p[1][0]>p[0][1]&&(m[2]=-m[2]),!0}},{"./normalize":424,"gl-mat4/clone":258,"gl-mat4/create":259,"gl-mat4/determinant":260,"gl-mat4/invert":264,"gl-mat4/transpose":275,"gl-vec3/cross":329,"gl-vec3/dot":334,"gl-vec3/length":344,"gl-vec3/normalize":351}],424:[function(t,e,r){e.exports=function(t,e){var r=e[15];if(0===r)return!1;for(var n=1/r,i=0;i<16;i++)t[i]=e[i]*n;return!0}},{}],425:[function(t,e,r){var n=t("gl-vec3/lerp"),i=t("mat4-recompose"),a=t("mat4-decompose"),o=t("gl-mat4/determinant"),s=t("quat-slerp"),l=f(),c=f(),u=f();function f(){return{translate:h(),scale:h(1),skew:h(),perspective:[0,0,0,1],quaternion:[0,0,0,1]}}function h(t){return[t||0,t||0,t||0]}e.exports=function(t,e,r,f){if(0===o(e)||0===o(r))return!1;var h=a(e,l.translate,l.scale,l.skew,l.perspective,l.quaternion),p=a(r,c.translate,c.scale,c.skew,c.perspective,c.quaternion);return!(!h||!p||(n(u.translate,l.translate,c.translate,f),n(u.skew,l.skew,c.skew,f),n(u.scale,l.scale,c.scale,f),n(u.perspective,l.perspective,c.perspective,f),s(u.quaternion,l.quaternion,c.quaternion,f),i(t,u.translate,u.scale,u.skew,u.perspective,u.quaternion),0))}},{"gl-mat4/determinant":260,"gl-vec3/lerp":345,"mat4-decompose":423,"mat4-recompose":426,"quat-slerp":478}],426:[function(t,e,r){var n={identity:t("gl-mat4/identity"),translate:t("gl-mat4/translate"),multiply:t("gl-mat4/multiply"),create:t("gl-mat4/create"),scale:t("gl-mat4/scale"),fromRotationTranslation:t("gl-mat4/fromRotationTranslation")},i=(n.create(),n.create());e.exports=function(t,e,r,a,o,s){return n.identity(t),n.fromRotationTranslation(t,s,e),t[3]=o[0],t[7]=o[1],t[11]=o[2],t[15]=o[3],n.identity(i),0!==a[2]&&(i[9]=a[2],n.multiply(t,t,i)),0!==a[1]&&(i[9]=0,i[8]=a[1],n.multiply(t,t,i)),0!==a[0]&&(i[8]=0,i[4]=a[0],n.multiply(t,t,i)),n.scale(t,t,r),t}},{"gl-mat4/create":259,"gl-mat4/fromRotationTranslation":262,"gl-mat4/identity":263,"gl-mat4/multiply":266,"gl-mat4/scale":273,"gl-mat4/translate":274}],427:[function(t,e,r){"use strict";e.exports=Math.log2||function(t){return Math.log(t)*Math.LOG2E}},{}],428:[function(t,e,r){"use strict";var n=t("binary-search-bounds"),i=t("mat4-interpolate"),a=t("gl-mat4/invert"),o=t("gl-mat4/rotateX"),s=t("gl-mat4/rotateY"),l=t("gl-mat4/rotateZ"),c=t("gl-mat4/lookAt"),u=t("gl-mat4/translate"),f=(t("gl-mat4/scale"),t("gl-vec3/normalize")),h=[0,0,0];function p(t){this._components=t.slice(),this._time=[0],this.prevMatrix=t.slice(),this.nextMatrix=t.slice(),this.computedMatrix=t.slice(),this.computedInverse=t.slice(),this.computedEye=[0,0,0],this.computedUp=[0,0,0],this.computedCenter=[0,0,0],this.computedRadius=[0],this._limits=[-1/0,1/0]}e.exports=function(t){return new p((t=t||{}).matrix||[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1])};var d=p.prototype;d.recalcMatrix=function(t){var e=this._time,r=n.le(e,t),o=this.computedMatrix;if(!(r<0)){var s=this._components;if(r===e.length-1)for(var l=16*r,c=0;c<16;++c)o[c]=s[l++];else{var u=e[r+1]-e[r],h=(l=16*r,this.prevMatrix),p=!0;for(c=0;c<16;++c)h[c]=s[l++];var d=this.nextMatrix;for(c=0;c<16;++c)d[c]=s[l++],p=p&&h[c]===d[c];if(u<1e-6||p)for(c=0;c<16;++c)o[c]=h[c];else i(o,h,d,(t-e[r])/u)}var g=this.computedUp;g[0]=o[1],g[1]=o[5],g[2]=o[9],f(g,g);var v=this.computedInverse;a(v,o);var m=this.computedEye,y=v[15];m[0]=v[12]/y,m[1]=v[13]/y,m[2]=v[14]/y;var 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MIN_DIFF : scale.y;\n\n  vec2 scaleRatio = adjustedScale * viewport.zw;\n\tvec2 normalWidth = thickness / scaleRatio;\n\n\tfloat lineStart = 1. - lineEnd;\n\tfloat lineBot = 1. - lineTop;\n\n\tfragColor = (lineStart * aColor + lineEnd * bColor) / 255.;\n\n\tif (isNaN(aCoord.x) || isNaN(aCoord.y) || isNaN(bCoord.x) || isNaN(bCoord.y)) return;\n\n\tif (aCoord == prevCoord) prevCoord = aCoord + normalize(bCoord - aCoord);\n\tif (bCoord == nextCoord) nextCoord = bCoord - normalize(bCoord - aCoord);\n\n\tvec2 prevDiff = aCoord - prevCoord;\n\tvec2 currDiff = bCoord - aCoord;\n\tvec2 nextDiff = nextCoord - bCoord;\n\n\tvec2 prevTangent = normalize(prevDiff * scaleRatio);\n\tvec2 currTangent = normalize(currDiff * scaleRatio);\n\tvec2 nextTangent = normalize(nextDiff * scaleRatio);\n\n\tvec2 prevNormal = vec2(-prevTangent.y, prevTangent.x);\n\tvec2 currNormal = vec2(-currTangent.y, currTangent.x);\n\tvec2 nextNormal = vec2(-nextTangent.y, nextTangent.x);\n\n\tvec2 startJoinDirection = normalize(prevTangent - currTangent);\n\tvec2 endJoinDirection = normalize(currTangent - nextTangent);\n\n\t// collapsed/unidirectional segment cases\n\t// FIXME: there should be more elegant solution\n\tvec2 prevTanDiff = abs(prevTangent - currTangent);\n\tvec2 nextTanDiff = abs(nextTangent - currTangent);\n\tif (max(prevTanDiff.x, prevTanDiff.y) < MIN_DIFF) {\n\t\tstartJoinDirection = currNormal;\n\t}\n\tif (max(nextTanDiff.x, nextTanDiff.y) < MIN_DIFF) {\n\t\tendJoinDirection = currNormal;\n\t}\n\tif (aCoord == bCoord) {\n\t\tendJoinDirection = startJoinDirection;\n\t\tcurrNormal = prevNormal;\n\t\tcurrTangent = prevTangent;\n\t}\n\n\ttangent = currTangent;\n\n\t//calculate join shifts relative to normals\n\tfloat startJoinShift = dot(currNormal, startJoinDirection);\n\tfloat endJoinShift = dot(currNormal, endJoinDirection);\n\n\tfloat startMiterRatio = abs(1. / startJoinShift);\n\tfloat endMiterRatio = abs(1. / endJoinShift);\n\n\tvec2 startJoin = startJoinDirection * startMiterRatio;\n\tvec2 endJoin = endJoinDirection * endMiterRatio;\n\n\tvec2 startTopJoin, startBotJoin, endTopJoin, endBotJoin;\n\tstartTopJoin = sign(startJoinShift) * startJoin * .5;\n\tstartBotJoin = -startTopJoin;\n\n\tendTopJoin = sign(endJoinShift) * endJoin * .5;\n\tendBotJoin = -endTopJoin;\n\n\tvec2 aTopCoord = aCoord + normalWidth * startTopJoin;\n\tvec2 bTopCoord = bCoord + normalWidth * endTopJoin;\n\tvec2 aBotCoord = aCoord + normalWidth * startBotJoin;\n\tvec2 bBotCoord = bCoord + normalWidth * endBotJoin;\n\n\t//miter anti-clipping\n\tfloat baClipping = distToLine(bCoord, aCoord, aBotCoord) / dot(normalize(normalWidth * endBotJoin), normalize(normalWidth.yx * vec2(-startBotJoin.y, startBotJoin.x)));\n\tfloat abClipping = distToLine(aCoord, bCoord, bTopCoord) / dot(normalize(normalWidth * startBotJoin), normalize(normalWidth.yx * vec2(-endBotJoin.y, endBotJoin.x)));\n\n\t//prevent close to reverse direction switch\n\tbool prevReverse = dot(currTangent, prevTangent) <= REVERSE_THRESHOLD && abs(dot(currTangent, prevNormal)) * min(length(prevDiff), length(currDiff)) <  length(normalWidth * currNormal);\n\tbool nextReverse = dot(currTangent, nextTangent) <= REVERSE_THRESHOLD && abs(dot(currTangent, nextNormal)) * min(length(nextDiff), length(currDiff)) <  length(normalWidth * currNormal);\n\n\tif (prevReverse) {\n\t\t//make join rectangular\n\t\tvec2 miterShift = normalWidth * startJoinDirection * miterLimit * .5;\n\t\tfloat normalAdjust = 1. - min(miterLimit / startMiterRatio, 1.);\n\t\taBotCoord = aCoord + miterShift - normalAdjust * normalWidth * currNormal * .5;\n\t\taTopCoord = aCoord + miterShift + normalAdjust * normalWidth * currNormal * .5;\n\t}\n\telse if (!nextReverse && baClipping > 0. && baClipping < length(normalWidth * endBotJoin)) {\n\t\t//handle miter clipping\n\t\tbTopCoord -= normalWidth * endTopJoin;\n\t\tbTopCoord += normalize(endTopJoin * normalWidth) * baClipping;\n\t}\n\n\tif (nextReverse) {\n\t\t//make join rectangular\n\t\tvec2 miterShift = normalWidth * endJoinDirection * miterLimit * .5;\n\t\tfloat normalAdjust = 1. - min(miterLimit / endMiterRatio, 1.);\n\t\tbBotCoord = bCoord + miterShift - normalAdjust * normalWidth * currNormal * .5;\n\t\tbTopCoord = bCoord + miterShift + normalAdjust * normalWidth * currNormal * .5;\n\t}\n\telse if (!prevReverse && abClipping > 0. && abClipping < length(normalWidth * startBotJoin)) {\n\t\t//handle miter clipping\n\t\taBotCoord -= normalWidth * startBotJoin;\n\t\taBotCoord += normalize(startBotJoin * normalWidth) * abClipping;\n\t}\n\n\tvec2 aTopPosition = (aTopCoord) * adjustedScale + translate;\n\tvec2 aBotPosition = (aBotCoord) * adjustedScale + translate;\n\n\tvec2 bTopPosition = (bTopCoord) * adjustedScale + translate;\n\tvec2 bBotPosition = (bBotCoord) * adjustedScale + translate;\n\n\t//position is normalized 0..1 coord on the screen\n\tvec2 position = (aTopPosition * lineTop + aBotPosition * lineBot) * lineStart + (bTopPosition * lineTop + bBotPosition * lineBot) * lineEnd;\n\n\tstartCoord = aCoord * scaleRatio + translate * viewport.zw + viewport.xy;\n\tendCoord = bCoord * scaleRatio + translate * viewport.zw + viewport.xy;\n\n\tgl_Position = vec4(position  * 2.0 - 1.0, depth, 1);\n\n\tenableStartMiter = step(dot(currTangent, prevTangent), .5);\n\tenableEndMiter = step(dot(currTangent, nextTangent), .5);\n\n\t//bevel miter cutoffs\n\tif (miterMode == 1.) {\n\t\tif (enableStartMiter == 1.) {\n\t\t\tvec2 startMiterWidth = vec2(startJoinDirection) * thickness * miterLimit * .5;\n\t\t\tstartCutoff = vec4(aCoord, aCoord);\n\t\t\tstartCutoff.zw += vec2(-startJoinDirection.y, startJoinDirection.x) / scaleRatio;\n\t\t\tstartCutoff = startCutoff * scaleRatio.xyxy + translate.xyxy * viewport.zwzw;\n\t\t\tstartCutoff += viewport.xyxy;\n\t\t\tstartCutoff += startMiterWidth.xyxy;\n\t\t}\n\n\t\tif (enableEndMiter == 1.) {\n\t\t\tvec2 endMiterWidth = vec2(endJoinDirection) * thickness * miterLimit * .5;\n\t\t\tendCutoff = vec4(bCoord, bCoord);\n\t\t\tendCutoff.zw += vec2(-endJoinDirection.y, endJoinDirection.x)  / scaleRatio;\n\t\t\tendCutoff = endCutoff * scaleRatio.xyxy + translate.xyxy * viewport.zwzw;\n\t\t\tendCutoff += viewport.xyxy;\n\t\t\tendCutoff += endMiterWidth.xyxy;\n\t\t}\n\t}\n\n\t//round miter cutoffs\n\telse if (miterMode == 2.) {\n\t\tif (enableStartMiter == 1.) {\n\t\t\tvec2 startMiterWidth = vec2(startJoinDirection) * thickness * abs(dot(startJoinDirection, currNormal)) * .5;\n\t\t\tstartCutoff = vec4(aCoord, aCoord);\n\t\t\tstartCutoff.zw += vec2(-startJoinDirection.y, startJoinDirection.x) / scaleRatio;\n\t\t\tstartCutoff = startCutoff * scaleRatio.xyxy + translate.xyxy * viewport.zwzw;\n\t\t\tstartCutoff += viewport.xyxy;\n\t\t\tstartCutoff += startMiterWidth.xyxy;\n\t\t}\n\n\t\tif (enableEndMiter == 1.) {\n\t\t\tvec2 endMiterWidth = vec2(endJoinDirection) * thickness * abs(dot(endJoinDirection, currNormal)) * .5;\n\t\t\tendCutoff = vec4(bCoord, bCoord);\n\t\t\tendCutoff.zw += vec2(-endJoinDirection.y, endJoinDirection.x)  / scaleRatio;\n\t\t\tendCutoff = endCutoff * scaleRatio.xyxy + translate.xyxy * viewport.zwzw;\n\t\t\tendCutoff += viewport.xyxy;\n\t\t\tendCutoff += endMiterWidth.xyxy;\n\t\t}\n\t}\n}\n"]),frag:o(["precision highp float;\n#define GLSLIFY 1\n\nuniform sampler2D dashPattern;\nuniform float dashSize, pixelRatio, thickness, opacity, id, miterMode;\n\nvarying vec4 fragColor;\nvarying vec2 tangent;\nvarying vec4 startCutoff, endCutoff;\nvarying vec2 startCoord, endCoord;\nvarying float enableStartMiter, enableEndMiter;\n\nfloat distToLine(vec2 p, vec2 a, vec2 b) {\n\tvec2 diff = b - a;\n\tvec2 perp = normalize(vec2(-diff.y, diff.x));\n\treturn dot(p - a, perp);\n}\n\nvoid main() {\n\tfloat alpha = 1., distToStart, distToEnd;\n\tfloat cutoff = thickness * .5;\n\n\t//bevel miter\n\tif (miterMode == 1.) {\n\t\tif (enableStartMiter == 1.) {\n\t\t\tdistToStart = distToLine(gl_FragCoord.xy, startCutoff.xy, startCutoff.zw);\n\t\t\tif (distToStart < -1.) {\n\t\t\t\tdiscard;\n\t\t\t\treturn;\n\t\t\t}\n\t\t\talpha *= min(max(distToStart + 1., 0.), 1.);\n\t\t}\n\n\t\tif (enableEndMiter == 1.) {\n\t\t\tdistToEnd = distToLine(gl_FragCoord.xy, endCutoff.xy, endCutoff.zw);\n\t\t\tif (distToEnd < -1.) {\n\t\t\t\tdiscard;\n\t\t\t\treturn;\n\t\t\t}\n\t\t\talpha *= min(max(distToEnd + 1., 0.), 1.);\n\t\t}\n\t}\n\n\t// round miter\n\telse if (miterMode == 2.) {\n\t\tif (enableStartMiter == 1.) {\n\t\t\tdistToStart = distToLine(gl_FragCoord.xy, startCutoff.xy, startCutoff.zw);\n\t\t\tif (distToStart < 0.) {\n\t\t\t\tfloat radius = length(gl_FragCoord.xy - startCoord);\n\n\t\t\t\tif(radius > cutoff + .5) {\n\t\t\t\t\tdiscard;\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\talpha -= smoothstep(cutoff - .5, cutoff + .5, radius);\n\t\t\t}\n\t\t}\n\n\t\tif (enableEndMiter == 1.) {\n\t\t\tdistToEnd = distToLine(gl_FragCoord.xy, endCutoff.xy, endCutoff.zw);\n\t\t\tif (distToEnd < 0.) {\n\t\t\t\tfloat radius = length(gl_FragCoord.xy - endCoord);\n\n\t\t\t\tif(radius > cutoff + .5) {\n\t\t\t\t\tdiscard;\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\talpha -= smoothstep(cutoff - .5, cutoff + .5, radius);\n\t\t\t}\n\t\t}\n\t}\n\n\tfloat t = fract(dot(tangent, gl_FragCoord.xy) / dashSize) * .5 + .25;\n\tfloat dash = texture2D(dashPattern, vec2(t, .5)).r;\n\n\tgl_FragColor = fragColor;\n\tgl_FragColor.a *= alpha * opacity * dash;\n}\n"]),attributes:{lineEnd:{buffer:r,divisor:0,stride:8,offset:0},lineTop:{buffer:r,divisor:0,stride:8,offset:4},aColor:{buffer:t.prop("colorBuffer"),stride:4,offset:0,divisor:1},bColor:{buffer:t.prop("colorBuffer"),stride:4,offset:4,divisor:1},prevCoord:{buffer:t.prop("positionBuffer"),stride:8,offset:0,divisor:1},aCoord:{buffer:t.prop("positionBuffer"),stride:8,offset:8,divisor:1},bCoord:{buffer:t.prop("positionBuffer"),stride:8,offset:16,divisor:1},nextCoord:{buffer:t.prop("positionBuffer"),stride:8,offset:24,divisor:1}}},n))}catch(t){e=i}return{fill:t({primitive:"triangle",elements:function(t,e){return e.triangles},offset:0,vert:o(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec2 position, positionFract;\n\nuniform vec4 color;\nuniform vec2 scale, scaleFract, translate, translateFract;\nuniform float pixelRatio, id;\nuniform vec4 viewport;\nuniform float opacity;\n\nvarying vec4 fragColor;\n\nconst float MAX_LINES = 256.;\n\nvoid main() {\n\tfloat depth = (MAX_LINES - 4. - id) / (MAX_LINES);\n\n\tvec2 position = position * scale + translate\n       + positionFract * scale + translateFract\n       + position * scaleFract\n       + positionFract * scaleFract;\n\n\tgl_Position = vec4(position * 2.0 - 1.0, depth, 1);\n\n\tfragColor = color / 255.;\n\tfragColor.a *= opacity;\n}\n"]),frag:o(["precision highp float;\n#define GLSLIFY 1\n\nvarying vec4 fragColor;\n\nvoid main() {\n\tgl_FragColor = fragColor;\n}\n"]),uniforms:{scale:t.prop("scale"),color:t.prop("fill"),scaleFract:t.prop("scaleFract"),translateFract:t.prop("translateFract"),translate:t.prop("translate"),opacity:t.prop("opacity"),pixelRatio:t.context("pixelRatio"),id:t.prop("id"),viewport:function(t,e){return[e.viewport.x,e.viewport.y,t.viewportWidth,t.viewportHeight]}},attributes:{position:{buffer:t.prop("positionBuffer"),stride:8,offset:8},positionFract:{buffer:t.prop("positionFractBuffer"),stride:8,offset:8}},blend:n.blend,depth:{enable:!1},scissor:n.scissor,stencil:n.stencil,viewport:n.viewport}),rect:i,miter:e}},v.defaults={dashes:null,join:"miter",miterLimit:1,thickness:10,cap:"square",color:"black",opacity:1,overlay:!1,viewport:null,range:null,close:!1,fill:null},v.prototype.render=function(){for(var t,e=[],r=arguments.length;r--;)e[r]=arguments[r];e.length&&(t=this).update.apply(t,e),this.draw()},v.prototype.draw=function(){for(var t=this,e=[],r=arguments.length;r--;)e[r]=arguments[r];return(e.length?e:this.passes).forEach(function(e,r){var n;if(e&&Array.isArray(e))return(n=t).draw.apply(n,e);"number"==typeof e&&(e=t.passes[e]),e&&e.count>1&&e.opacity&&(t.regl._refresh(),e.fill&&e.triangles&&e.triangles.length>2&&t.shaders.fill(e),e.thickness&&(e.scale[0]*e.viewport.width>v.precisionThreshold||e.scale[1]*e.viewport.height>v.precisionThreshold?t.shaders.rect(e):"rect"===e.join||!e.join&&(e.thickness<=2||e.count>=v.maxPoints)?t.shaders.rect(e):t.shaders.miter(e)))}),this},v.prototype.update=function(t){var e=this;if(t){null!=t.length?"number"==typeof t[0]&&(t=[{positions:t}]):Array.isArray(t)||(t=[t]);var r=this.regl,o=this.gl;if(t.forEach(function(t,f){var d=e.passes[f];if(void 0!==t)if(null!==t){if("number"==typeof t[0]&&(t={positions:t}),t=s(t,{positions:"positions points data coords",thickness:"thickness lineWidth lineWidths line-width linewidth width stroke-width strokewidth strokeWidth",join:"lineJoin linejoin join type mode",miterLimit:"miterlimit miterLimit",dashes:"dash dashes dasharray dash-array dashArray",color:"color colour stroke colors colours stroke-color strokeColor",fill:"fill fill-color fillColor",opacity:"alpha opacity",overlay:"overlay crease overlap intersect",close:"closed close closed-path closePath",range:"range dataBox",viewport:"viewport viewBox",hole:"holes hole hollow"}),d||(e.passes[f]=d={id:f,scale:null,scaleFract:null,translate:null,translateFract:null,count:0,hole:[],depth:0,dashLength:1,dashTexture:r.texture({channels:1,data:new Uint8Array([255]),width:1,height:1,mag:"linear",min:"linear"}),colorBuffer:r.buffer({usage:"dynamic",type:"uint8",data:new Uint8Array}),positionBuffer:r.buffer({usage:"dynamic",type:"float",data:new Uint8Array}),positionFractBuffer:r.buffer({usage:"dynamic",type:"float",data:new Uint8Array})},t=a({},v.defaults,t)),null!=t.thickness&&(d.thickness=parseFloat(t.thickness)),null!=t.opacity&&(d.opacity=parseFloat(t.opacity)),null!=t.miterLimit&&(d.miterLimit=parseFloat(t.miterLimit)),null!=t.overlay&&(d.overlay=!!t.overlay,f<v.maxLines&&(d.depth=2*(v.maxLines-1-f%v.maxLines)/v.maxLines-1)),null!=t.join&&(d.join=t.join),null!=t.hole&&(d.hole=t.hole),null!=t.fill&&(d.fill=t.fill?n(t.fill,"uint8"):null),null!=t.viewport&&(d.viewport=g(t.viewport)),d.viewport||(d.viewport=g([o.drawingBufferWidth,o.drawingBufferHeight])),null!=t.close&&(d.close=t.close),null===t.positions&&(t.positions=[]),t.positions){var m,y;if(t.positions.x&&t.positions.y){var x=t.positions.x,b=t.positions.y;y=d.count=Math.max(x.length,b.length),m=new Float64Array(2*y);for(var _=0;_<y;_++)m[2*_]=x[_],m[2*_+1]=b[_]}else m=l(t.positions,"float64"),y=d.count=Math.floor(m.length/2);var w=d.bounds=i(m,2);if(d.fill){for(var k=[],T={},A=0,M=0,S=0,E=d.count;M<E;M++){var C=m[2*M],L=m[2*M+1];isNaN(C)||isNaN(L)||null==C||null==L?(C=m[2*A],L=m[2*A+1],T[M]=A):A=M,k[S++]=C,k[S++]=L}for(var z=c(k,d.hole||[]),O=0,I=z.length;O<I;O++)null!=T[z[O]]&&(z[O]=T[z[O]]);d.triangles=z}var D=new Float64Array(m);u(D,2,w);var P=new Float64Array(2*y+6);d.close?m[0]===m[2*y-2]&&m[1]===m[2*y-1]?(P[0]=D[2*y-4],P[1]=D[2*y-3]):(P[0]=D[2*y-2],P[1]=D[2*y-1]):(P[0]=D[0],P[1]=D[1]),P.set(D,2),d.close?m[0]===m[2*y-2]&&m[1]===m[2*y-1]?(P[2*y+2]=D[2],P[2*y+3]=D[3],d.count-=1):(P[2*y+2]=D[0],P[2*y+3]=D[1],P[2*y+4]=D[2],P[2*y+5]=D[3]):(P[2*y+2]=D[2*y-2],P[2*y+3]=D[2*y-1],P[2*y+4]=D[2*y-2],P[2*y+5]=D[2*y-1]),d.positionBuffer(h(P)),d.positionFractBuffer(p(P))}if(t.range?d.range=t.range:d.range||(d.range=d.bounds),(t.range||t.positions)&&d.count){var R=d.bounds,F=R[2]-R[0],B=R[3]-R[1],N=d.range[2]-d.range[0],j=d.range[3]-d.range[1];d.scale=[F/N,B/j],d.translate=[-d.range[0]/N+R[0]/N||0,-d.range[1]/j+R[1]/j||0],d.scaleFract=p(d.scale),d.translateFract=p(d.translate)}if(t.dashes){var V,U=0;if(!t.dashes||t.dashes.length<2)U=1,V=new Uint8Array([255,255,255,255,255,255,255,255]);else{U=0;for(var H=0;H<t.dashes.length;++H)U+=t.dashes[H];V=new Uint8Array(U*v.dashMult);for(var q=0,G=255,Y=0;Y<2;Y++)for(var W=0;W<t.dashes.length;++W){for(var X=0,Z=t.dashes[W]*v.dashMult*.5;X<Z;++X)V[q++]=G;G^=255}}d.dashLength=U,d.dashTexture({channels:1,data:V,width:V.length,height:1,mag:"linear",min:"linear"},0,0)}if(t.color){var $=d.count,J=t.color;J||(J="transparent");var K=new Uint8Array(4*$+4);if(Array.isArray(J)&&"number"!=typeof J[0]){for(var Q=0;Q<$;Q++){var tt=n(J[Q],"uint8");K.set(tt,4*Q)}K.set(n(J[0],"uint8"),4*$)}else for(var et=n(J,"uint8"),rt=0;rt<$+1;rt++)K.set(et,4*rt);d.colorBuffer({usage:"dynamic",type:"uint8",data:K})}}else e.passes[f]=null}),t.length<this.passes.length){for(var f=t.length;f<this.passes.length;f++){var d=e.passes[f];d&&(d.colorBuffer.destroy(),d.positionBuffer.destroy(),d.dashTexture.destroy())}this.passes.length=t.length}for(var m=[],y=0;y<this.passes.length;y++)null!==e.passes[y]&&m.push(e.passes[y]);return this.passes=m,this}},v.prototype.destroy=function(){return this.passes.forEach(function(t){t.colorBuffer.destroy(),t.positionBuffer.destroy(),t.dashTexture.destroy()}),this.passes.length=0,this}},{"array-bounds":58,"array-normalize":59,"color-normalize":113,earcut:165,"es6-weak-map":219,"flatten-vertex-data":226,glslify:404,"object-assign":449,"parse-rect":454,"pick-by-alias":460,"to-float32":525}],487:[function(t,e,r){"use strict";function n(t,e){return function(t){if(Array.isArray(t))return t}(t)||function(t,e){var r=[],n=!0,i=!1,a=void 0;try{for(var o,s=t[Symbol.iterator]();!(n=(o=s.next()).done)&&(r.push(o.value),!e||r.length!==e);n=!0);}catch(t){i=!0,a=t}finally{try{n||null==s.return||s.return()}finally{if(i)throw a}}return r}(t,e)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}()}function i(t){return function(t){if(Array.isArray(t)){for(var e=0,r=new Array(t.length);e<t.length;e++)r[e]=t[e];return r}}(t)||function(t){if(Symbol.iterator in Object(t)||"[object Arguments]"===Object.prototype.toString.call(t))return Array.from(t)}(t)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance")}()}var a=t("color-normalize"),o=t("array-bounds"),s=t("color-id"),l=t("point-cluster"),c=t("object-assign"),u=t("glslify"),f=t("pick-by-alias"),h=t("update-diff"),p=t("flatten-vertex-data"),d=t("is-iexplorer"),g=t("to-float32"),v=t("parse-rect"),m=y;function y(t,e){var r=this;if(!(this instanceof y))return new y(t,e);"function"==typeof t?(e||(e={}),e.regl=t):(e=t,t=null),e&&e.length&&(e.positions=e);var n,i=(t=e.regl)._gl,a=[];this.tooManyColors=d,n=t.texture({data:new Uint8Array(1020),width:255,height:1,type:"uint8",format:"rgba",wrapS:"clamp",wrapT:"clamp",mag:"nearest",min:"nearest"}),c(this,{regl:t,gl:i,groups:[],markerCache:[null],markerTextures:[null],palette:a,paletteIds:{},paletteTexture:n,maxColors:255,maxSize:100,canvas:i.canvas}),this.update(e);var o={uniforms:{pixelRatio:t.context("pixelRatio"),palette:n,paletteSize:function(t,e){return[r.tooManyColors?0:255,n.height]},scale:t.prop("scale"),scaleFract:t.prop("scaleFract"),translate:t.prop("translate"),translateFract:t.prop("translateFract"),opacity:t.prop("opacity"),marker:t.prop("markerTexture")},attributes:{x:function(t,e){return e.xAttr||{buffer:e.positionBuffer,stride:8,offset:0}},y:function(t,e){return e.yAttr||{buffer:e.positionBuffer,stride:8,offset:4}},xFract:function(t,e){return e.xAttr?{constant:[0,0]}:{buffer:e.positionFractBuffer,stride:8,offset:0}},yFract:function(t,e){return e.yAttr?{constant:[0,0]}:{buffer:e.positionFractBuffer,stride:8,offset:4}},size:function(t,e){return e.size.length?{buffer:e.sizeBuffer,stride:2,offset:0}:{constant:[Math.round(255*e.size/r.maxSize)]}},borderSize:function(t,e){return e.borderSize.length?{buffer:e.sizeBuffer,stride:2,offset:1}:{constant:[Math.round(255*e.borderSize/r.maxSize)]}},colorId:function(t,e){return e.color.length?{buffer:e.colorBuffer,stride:r.tooManyColors?8:4,offset:0}:{constant:r.tooManyColors?a.slice(4*e.color,4*e.color+4):[e.color]}},borderColorId:function(t,e){return e.borderColor.length?{buffer:e.colorBuffer,stride:r.tooManyColors?8:4,offset:r.tooManyColors?4:2}:{constant:r.tooManyColors?a.slice(4*e.borderColor,4*e.borderColor+4):[e.borderColor]}},isActive:function(t,e){return!0===e.activation?{constant:[1]}:e.activation?e.activation:{constant:[0]}}},blend:{enable:!0,color:[0,0,0,1],func:{srcRGB:"src alpha",dstRGB:"one minus src alpha",srcAlpha:"one minus dst alpha",dstAlpha:"one"}},scissor:{enable:!0,box:t.prop("viewport")},viewport:t.prop("viewport"),stencil:{enable:!1},depth:{enable:!1},elements:t.prop("elements"),count:t.prop("count"),offset:t.prop("offset"),primitive:"points"},s=c({},o);s.frag=u(["precision highp float;\n#define GLSLIFY 1\n\nvarying vec4 fragColor, fragBorderColor;\nvarying float fragWidth, fragBorderColorLevel, fragColorLevel;\n\nuniform sampler2D marker;\nuniform float pixelRatio, opacity;\n\nfloat smoothStep(float x, float y) {\n  return 1.0 / (1.0 + exp(50.0*(x - y)));\n}\n\nvoid main() {\n  float dist = texture2D(marker, gl_PointCoord).r, delta = fragWidth;\n\n  // max-distance alpha\n  if (dist < 0.003) discard;\n\n  // null-border case\n  if (fragBorderColorLevel == fragColorLevel || fragBorderColor.a == 0.) {\n    float colorAmt = smoothstep(.5 - delta, .5 + delta, dist);\n    gl_FragColor = vec4(fragColor.rgb, colorAmt * fragColor.a * opacity);\n  }\n  else {\n    float borderColorAmt = smoothstep(fragBorderColorLevel - delta, fragBorderColorLevel + delta, dist);\n    float colorAmt = smoothstep(fragColorLevel - delta, fragColorLevel + delta, dist);\n\n    vec4 color = fragBorderColor;\n    color.a *= borderColorAmt;\n    color = mix(color, fragColor, colorAmt);\n    color.a *= opacity;\n\n    gl_FragColor = color;\n  }\n\n}\n"]),s.vert=u(["precision highp float;\n#define GLSLIFY 1\n\nattribute float x, y, xFract, yFract;\nattribute float size, borderSize;\nattribute vec4 colorId, borderColorId;\nattribute float isActive;\n\nuniform vec2 scale, scaleFract, translate, translateFract, paletteSize;\nuniform float pixelRatio;\nuniform sampler2D palette;\n\nconst float maxSize = 100.;\nconst float borderLevel = .5;\n\nvarying vec4 fragColor, fragBorderColor;\nvarying float fragPointSize, fragBorderRadius, fragWidth, fragBorderColorLevel, fragColorLevel;\n\nbool isDirect = (paletteSize.x < 1.);\n\nvec4 getColor(vec4 id) {\n  return isDirect ? id / 255. : texture2D(palette,\n    vec2(\n      (id.x + .5) / paletteSize.x,\n      (id.y + .5) / paletteSize.y\n    )\n  );\n}\n\nvoid main() {\n  if (isActive == 0.) return;\n\n  vec2 position = vec2(x, y);\n  vec2 positionFract = vec2(xFract, yFract);\n\n  vec4 color = getColor(colorId);\n  vec4 borderColor = getColor(borderColorId);\n\n  float size = size * maxSize / 255.;\n  float borderSize = borderSize * maxSize / 255.;\n\n  gl_PointSize = 2. * size * pixelRatio;\n  fragPointSize = size * pixelRatio;\n\n  vec2 pos = (position + translate) * scale\n      + (positionFract + translateFract) * scale\n      + (position + translate) * scaleFract\n      + (positionFract + translateFract) * scaleFract;\n\n  gl_Position = vec4(pos * 2. - 1., 0, 1);\n\n  fragColor = color;\n  fragBorderColor = borderColor;\n  fragWidth = 1. / gl_PointSize;\n\n  fragBorderColorLevel = clamp(borderLevel - borderLevel * borderSize / size, 0., 1.);\n  fragColorLevel = clamp(borderLevel + (1. - borderLevel) * borderSize / size, 0., 1.);\n}"]),this.drawMarker=t(s);var l=c({},o);l.frag=u(["precision highp float;\n#define GLSLIFY 1\n\nvarying vec4 fragColor, fragBorderColor;\n\nuniform float opacity;\nvarying float fragBorderRadius, fragWidth;\n\nfloat smoothStep(float edge0, float edge1, float x) {\n\tfloat t;\n\tt = clamp((x - edge0) / (edge1 - edge0), 0.0, 1.0);\n\treturn t * t * (3.0 - 2.0 * t);\n}\n\nvoid main() {\n\tfloat radius, alpha = 1.0, delta = fragWidth;\n\n\tradius = length(2.0 * gl_PointCoord.xy - 1.0);\n\n\tif (radius > 1.0 + delta) {\n\t\tdiscard;\n\t}\n\n\talpha -= smoothstep(1.0 - delta, 1.0 + delta, radius);\n\n\tfloat borderRadius = fragBorderRadius;\n\tfloat ratio = smoothstep(borderRadius - delta, borderRadius + delta, radius);\n\tvec4 color = mix(fragColor, fragBorderColor, ratio);\n\tcolor.a *= alpha * opacity;\n\tgl_FragColor = color;\n}\n"]),l.vert=u(["precision highp float;\n#define GLSLIFY 1\n\nattribute float x, y, xFract, yFract;\nattribute float size, borderSize;\nattribute vec4 colorId, borderColorId;\nattribute float isActive;\n\nuniform vec2 scale, scaleFract, translate, translateFract;\nuniform float pixelRatio;\nuniform sampler2D palette;\nuniform vec2 paletteSize;\n\nconst float maxSize = 100.;\n\nvarying vec4 fragColor, fragBorderColor;\nvarying float fragBorderRadius, fragWidth;\n\nbool isDirect = (paletteSize.x < 1.);\n\nvec4 getColor(vec4 id) {\n  return isDirect ? id / 255. : texture2D(palette,\n    vec2(\n      (id.x + .5) / paletteSize.x,\n      (id.y + .5) / paletteSize.y\n    )\n  );\n}\n\nvoid main() {\n  // ignore inactive points\n  if (isActive == 0.) return;\n\n  vec2 position = vec2(x, y);\n  vec2 positionFract = vec2(xFract, yFract);\n\n  vec4 color = getColor(colorId);\n  vec4 borderColor = getColor(borderColorId);\n\n  float size = size * maxSize / 255.;\n  float borderSize = borderSize * maxSize / 255.;\n\n  gl_PointSize = (size + borderSize) * pixelRatio;\n\n  vec2 pos = (position + translate) * scale\n      + (positionFract + translateFract) * scale\n      + (position + translate) * scaleFract\n      + (positionFract + translateFract) * scaleFract;\n\n  gl_Position = vec4(pos * 2. - 1., 0, 1);\n\n  fragBorderRadius = 1. - 2. * borderSize / (size + borderSize);\n  fragColor = color;\n  fragBorderColor = borderColor.a == 0. || borderSize == 0. ? vec4(color.rgb, 0.) : borderColor;\n  fragWidth = 1. / gl_PointSize;\n}\n"]),d&&(l.frag=l.frag.replace("smoothstep","smoothStep"),s.frag=s.frag.replace("smoothstep","smoothStep")),this.drawCircle=t(l)}y.defaults={color:"black",borderColor:"transparent",borderSize:0,size:12,opacity:1,marker:void 0,viewport:null,range:null,pixelSize:null,count:0,offset:0,bounds:null,positions:[],snap:1e4},y.prototype.render=function(){return arguments.length&&this.update.apply(this,arguments),this.draw(),this},y.prototype.draw=function(){for(var t=this,e=arguments.length,r=new Array(e),n=0;n<e;n++)r[n]=arguments[n];var i=this.groups;if(1===r.length&&Array.isArray(r[0])&&(null===r[0][0]||Array.isArray(r[0][0]))&&(r=r[0]),this.regl._refresh(),r.length)for(var a=0;a<r.length;a++)this.drawItem(a,r[a]);else i.forEach(function(e,r){t.drawItem(r)});return this},y.prototype.drawItem=function(t,e){var r=this.groups,n=r[t];if("number"==typeof e&&(t=e,n=r[e],e=null),n&&n.count&&n.opacity){n.activation[0]&&this.drawCircle(this.getMarkerDrawOptions(0,n,e));for(var a=[],o=1;o<n.activation.length;o++)n.activation[o]&&(!0===n.activation[o]||n.activation[o].data.length)&&a.push.apply(a,i(this.getMarkerDrawOptions(o,n,e)));a.length&&this.drawMarker(a)}},y.prototype.getMarkerDrawOptions=function(t,e,r){var i=e.range,a=e.tree,o=e.viewport,s=e.activation,l=e.selectionBuffer,u=e.count;this.regl;if(!a)return r?[c({},e,{markerTexture:this.markerTextures[t],activation:s[t],count:r.length,elements:r,offset:0})]:[c({},e,{markerTexture:this.markerTextures[t],activation:s[t],offset:0})];var f=[],h=a.range(i,{lod:!0,px:[(i[2]-i[0])/o.width,(i[3]-i[1])/o.height]});if(r){for(var p=s[t].data,d=new Uint8Array(u),g=0;g<r.length;g++){var v=r[g];d[v]=p?p[v]:1}l.subdata(d)}for(var m=h.length;m--;){var y=n(h[m],2),x=y[0],b=y[1];f.push(c({},e,{markerTexture:this.markerTextures[t],activation:r?l:s[t],offset:x,count:b-x}))}return f},y.prototype.update=function(){for(var t=this,e=arguments.length,r=new Array(e),n=0;n<e;n++)r[n]=arguments[n];if(r.length){1===r.length&&Array.isArray(r[0])&&(r=r[0]);var i=this.groups,a=this.gl,s=this.regl,u=this.maxSize,d=this.maxColors,m=this.palette;this.groups=i=r.map(function(e,r){var n=i[r];if(void 0===e)return n;null===e?e={positions:null}:"function"==typeof e?e={ondraw:e}:"number"==typeof e[0]&&(e={positions:e}),null===(e=f(e,{positions:"positions data points",snap:"snap cluster lod tree",size:"sizes size radius",borderSize:"borderSizes borderSize border-size bordersize borderWidth borderWidths border-width borderwidth stroke-width strokeWidth strokewidth outline",color:"colors color fill fill-color fillColor",borderColor:"borderColors borderColor stroke stroke-color strokeColor",marker:"markers marker shape",range:"range dataBox databox",viewport:"viewport viewPort viewBox viewbox",opacity:"opacity alpha transparency",bounds:"bound bounds boundaries limits",tooManyColors:"tooManyColors palette paletteMode optimizePalette enablePalette"})).positions&&(e.positions=[]),null!=e.tooManyColors&&(t.tooManyColors=e.tooManyColors),n||(i[r]=n={id:r,scale:null,translate:null,scaleFract:null,translateFract:null,activation:[],selectionBuffer:s.buffer({data:new Uint8Array(0),usage:"stream",type:"uint8"}),sizeBuffer:s.buffer({data:new Uint8Array(0),usage:"dynamic",type:"uint8"}),colorBuffer:s.buffer({data:new Uint8Array(0),usage:"dynamic",type:"uint8"}),positionBuffer:s.buffer({data:new Uint8Array(0),usage:"dynamic",type:"float"}),positionFractBuffer:s.buffer({data:new Uint8Array(0),usage:"dynamic",type:"float"})},e=c({},y.defaults,e)),!e.positions||"marker"in e||(e.marker=n.marker,delete n.marker),!e.marker||"positions"in e||(e.positions=n.positions,delete n.positions);var x=0,b=0;if(h(n,e,[{snap:!0,size:function(t,e){return null==t&&(t=y.defaults.size),x+=t&&t.length?1:0,t},borderSize:function(t,e){return null==t&&(t=y.defaults.borderSize),x+=t&&t.length?1:0,t},opacity:parseFloat,color:function(e,r){return null==e&&(e=y.defaults.color),e=t.updateColor(e),b++,e},borderColor:function(e,r){return null==e&&(e=y.defaults.borderColor),e=t.updateColor(e),b++,e},bounds:function(t,e,r){return"range"in r||(r.range=null),t},positions:function(t,e,r){var n=e.snap,i=e.positionBuffer,a=e.positionFractBuffer,c=e.selectionBuffer;if(t.x||t.y)return t.x.length?e.xAttr={buffer:s.buffer(t.x),offset:0,stride:4,count:t.x.length}:e.xAttr={buffer:t.x.buffer,offset:4*t.x.offset||0,stride:4*(t.x.stride||1),count:t.x.count},t.y.length?e.yAttr={buffer:s.buffer(t.y),offset:0,stride:4,count:t.y.length}:e.yAttr={buffer:t.y.buffer,offset:4*t.y.offset||0,stride:4*(t.y.stride||1),count:t.y.count},e.count=Math.max(e.xAttr.count,e.yAttr.count),t;t=p(t,"float64");var u=e.count=Math.floor(t.length/2),f=e.bounds=u?o(t,2):null;if(r.range||e.range||(delete e.range,r.range=f),r.marker||e.marker||(delete e.marker,r.marker=null),n&&(!0===n||u>n)?e.tree=l(t,{bounds:f}):n&&n.length&&(e.tree=n),e.tree){var h={primitive:"points",usage:"static",data:e.tree,type:"uint32"};e.elements?e.elements(h):e.elements=s.elements(h)}return i({data:g.float(t),usage:"dynamic"}),a({data:g.fract(t),usage:"dynamic"}),c({data:new Uint8Array(u),type:"uint8",usage:"stream"}),t}},{marker:function(e,r,n){var i=r.activation;if(i.forEach(function(t){return t&&t.destroy&&t.destroy()}),i.length=0,e&&"number"!=typeof e[0]){for(var a=[],o=0,l=Math.min(e.length,r.count);o<l;o++){var c=t.addMarker(e[o]);a[c]||(a[c]=new Uint8Array(r.count)),a[c][o]=1}for(var u=0;u<a.length;u++)if(a[u]){var f={data:a[u],type:"uint8",usage:"static"};i[u]?i[u](f):i[u]=s.buffer(f),i[u].data=a[u]}}else{i[t.addMarker(e)]=!0}return e},range:function(t,e,r){var n=e.bounds;if(n)return t||(t=n),e.scale=[1/(t[2]-t[0]),1/(t[3]-t[1])],e.translate=[-t[0],-t[1]],e.scaleFract=g.fract(e.scale),e.translateFract=g.fract(e.translate),t},viewport:function(t){return v(t||[a.drawingBufferWidth,a.drawingBufferHeight])}}]),x){var _=n,w=_.count,k=_.size,T=_.borderSize,A=_.sizeBuffer,M=new Uint8Array(2*w);if(k.length||T.length)for(var S=0;S<w;S++)M[2*S]=Math.round(255*(null==k[S]?k:k[S])/u),M[2*S+1]=Math.round(255*(null==T[S]?T:T[S])/u);A({data:M,usage:"dynamic"})}if(b){var E,C=n,L=C.count,z=C.color,O=C.borderColor,I=C.colorBuffer;if(t.tooManyColors){if(z.length||O.length){E=new Uint8Array(8*L);for(var D=0;D<L;D++){var P=z[D];E[8*D]=m[4*P],E[8*D+1]=m[4*P+1],E[8*D+2]=m[4*P+2],E[8*D+3]=m[4*P+3];var R=O[D];E[8*D+4]=m[4*R],E[8*D+5]=m[4*R+1],E[8*D+6]=m[4*R+2],E[8*D+7]=m[4*R+3]}}}else if(z.length||O.length){E=new Uint8Array(4*L+2);for(var F=0;F<L;F++)null!=z[F]&&(E[4*F]=z[F]%d,E[4*F+1]=Math.floor(z[F]/d)),null!=O[F]&&(E[4*F+2]=O[F]%d,E[4*F+3]=Math.floor(O[F]/d))}I({data:E||new Uint8Array(0),type:"uint8",usage:"dynamic"})}return n})}},y.prototype.addMarker=function(t){var e,r=this.markerTextures,n=this.regl,i=this.markerCache,a=null==t?0:i.indexOf(t);if(a>=0)return a;if(t instanceof Uint8Array||t instanceof Uint8ClampedArray)e=t;else{e=new Uint8Array(t.length);for(var o=0,s=t.length;o<s;o++)e[o]=255*t[o]}var l=Math.floor(Math.sqrt(e.length));return a=r.length,i.push(t),r.push(n.texture({channels:1,data:e,radius:l,mag:"linear",min:"linear"})),a},y.prototype.updateColor=function(t){var e=this.paletteIds,r=this.palette,n=this.maxColors;Array.isArray(t)||(t=[t]);var i=[];if("number"==typeof t[0]){var o=[];if(Array.isArray(t))for(var l=0;l<t.length;l+=4)o.push(t.slice(l,l+4));else for(var c=0;c<t.length;c+=4)o.push(t.subarray(c,c+4));t=o}for(var u=0;u<t.length;u++){var f=t[u];f=a(f,"uint8");var h=s(f,!1);if(null==e[h]){var p=r.length;e[h]=Math.floor(p/4),r[p]=f[0],r[p+1]=f[1],r[p+2]=f[2],r[p+3]=f[3]}i[u]=e[h]}return!this.tooManyColors&&r.length>4*n&&(this.tooManyColors=!0),this.updatePalette(r),1===i.length?i[0]:i},y.prototype.updatePalette=function(t){if(!this.tooManyColors){var e=this.maxColors,r=this.paletteTexture,n=Math.ceil(.25*t.length/e);if(n>1)for(var i=.25*(t=t.slice()).length%e;i<n*e;i++)t.push(0,0,0,0);r.height<n&&r.resize(e,n),r.subimage({width:Math.min(.25*t.length,e),height:n,data:t},0,0)}},y.prototype.destroy=function(){return this.groups.forEach(function(t){t.sizeBuffer.destroy(),t.positionBuffer.destroy(),t.positionFractBuffer.destroy(),t.colorBuffer.destroy(),t.activation.forEach(function(t){return t&&t.destroy&&t.destroy()}),t.selectionBuffer.destroy(),t.elements&&t.elements.destroy()}),this.groups.length=0,this.paletteTexture.destroy(),this.markerTextures.forEach(function(t){return t&&t.destroy&&t.destroy()}),this};var x=t("object-assign");e.exports=function(t,e){var r=new m(t,e),n=r.render.bind(r);return x(n,{render:n,update:r.update.bind(r),draw:r.draw.bind(r),destroy:r.destroy.bind(r),regl:r.regl,gl:r.gl,canvas:r.gl.canvas,groups:r.groups,markers:r.markerCache,palette:r.palette}),n}},{"array-bounds":58,"color-id":111,"color-normalize":113,"flatten-vertex-data":226,glslify:404,"is-iexplorer":414,"object-assign":449,"parse-rect":454,"pick-by-alias":460,"point-cluster":464,"to-float32":525,"update-diff":536}],488:[function(t,e,r){"use strict";var n=t("regl-scatter2d"),i=t("pick-by-alias"),a=t("array-bounds"),o=t("raf"),s=t("array-range"),l=t("parse-rect"),c=t("flatten-vertex-data");function u(t,e){if(!(this instanceof u))return new u(t,e);this.traces=[],this.passes={},this.regl=t,this.scatter=n(t),this.canvas=this.scatter.canvas}function f(t,e,r){return(null!=t.id?t.id:t)<<16|(255&e)<<8|255&r}function h(t,e,r){var n,i,a,o,s=t[e],l=t[r];return s.length>2?(s[0],s[2],n=s[1],i=s[3]):s.length?(n=s[0],i=s[1]):(s.x,n=s.y,s.x+s.width,i=s.y+s.height),l.length>2?(a=l[0],o=l[2],l[1],l[3]):l.length?(a=l[0],o=l[1]):(a=l.x,l.y,o=l.x+l.width,l.y+l.height),[a,n,o,i]}function p(t){if("number"==typeof t)return[t,t,t,t];if(2===t.length)return[t[0],t[1],t[0],t[1]];var e=l(t);return[e.x,e.y,e.x+e.width,e.y+e.height]}e.exports=u,u.prototype.render=function(){for(var t,e=this,r=[],n=arguments.length;n--;)r[n]=arguments[n];return r.length&&(t=this).update.apply(t,r),this.regl.attributes.preserveDrawingBuffer?this.draw():(this.dirty?null==this.planned&&(this.planned=o(function(){e.draw(),e.dirty=!0,e.planned=null})):(this.draw(),this.dirty=!0,o(function(){e.dirty=!1})),this)},u.prototype.update=function(){for(var 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r=this._validate(t,e,this.minDay,n.local.invalidMonth);return this.daysPerMonth[r.month()-1]+(2===r.month()&&this.leapYear(r.year())?1:0)},weekDay:function(t,e,r){return(this.dayOfWeek(t,e,r)||7)<6},toJD:function(t,e,r){var i=this._validate(t,e,r,n.local.invalidDate);return t=i.year(),e=i.month(),r=i.day(),t<0&&t++,e<=2&&(t--,e+=12),Math.floor(365.25*(t+4716))+Math.floor(30.6001*(e+1))+r-1524.5},fromJD:function(t){var e=Math.floor(t+.5)+1524,r=Math.floor((e-122.1)/365.25),n=Math.floor(365.25*r),i=Math.floor((e-n)/30.6001),a=i-Math.floor(i<14?1:13),o=r-Math.floor(a>2?4716:4715),s=e-n-Math.floor(30.6001*i);return o<=0&&o--,this.newDate(o,a,s)}}),n.calendars.julian=a},{"../main":558,"object-assign":449}],551:[function(t,e,r){var n=t("../main"),i=t("object-assign");function a(t){this.local=this.regionalOptions[t||""]||this.regionalOptions[""]}function o(t,e){return t-e*Math.floor(t/e)}function s(t,e){return o(t-1,e)+1}a.prototype=new n.baseCalendar,i(a.prototype,{name:"Mayan",jdEpoch:584282.5,hasYearZero:!0,minMonth:0,firstMonth:0,minDay:0,regionalOptions:{"":{name:"Mayan",epochs:["",""],monthNames:["0","1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17"],monthNamesShort:["0","1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17"],dayNames:["0","1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19"],dayNamesShort:["0","1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19"],dayNamesMin:["0","1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19"],digits:null,dateFormat:"YYYY.m.d",firstDay:0,isRTL:!1,haabMonths:["Pop","Uo","Zip","Zotz","Tzec","Xul","Yaxkin","Mol","Chen","Yax","Zac","Ceh","Mac","Kankin","Muan","Pax","Kayab","Cumku","Uayeb"],tzolkinMonths:["Imix","Ik","Akbal","Kan","Chicchan","Cimi","Manik","Lamat","Muluc","Oc","Chuen","Eb","Ben","Ix","Men","Cib","Caban","Etznab","Cauac","Ahau"]}},leapYear:function(t){return this._validate(t,this.minMonth,this.minDay,n.local.invalidYear),!1},formatYear:function(t){t=this._validate(t,this.minMonth,this.minDay,n.local.invalidYear).year();var e=Math.floor(t/400);return t%=400,t+=t<0?400:0,e+"."+Math.floor(t/20)+"."+t%20},forYear:function(t){if((t=t.split(".")).length<3)throw"Invalid Mayan year";for(var e=0,r=0;r<t.length;r++){var n=parseInt(t[r],10);if(Math.abs(n)>19||r>0&&n<0)throw"Invalid Mayan year";e=20*e+n}return e},monthsInYear:function(t){return this._validate(t,this.minMonth,this.minDay,n.local.invalidYear),18},weekOfYear:function(t,e,r){return this._validate(t,e,r,n.local.invalidDate),0},daysInYear:function(t){return this._validate(t,this.minMonth,this.minDay,n.local.invalidYear),360},daysInMonth:function(t,e){return this._validate(t,e,this.minDay,n.local.invalidMonth),20},daysInWeek:function(){return 5},dayOfWeek:function(t,e,r){return this._validate(t,e,r,n.local.invalidDate).day()},weekDay:function(t,e,r){return this._validate(t,e,r,n.local.invalidDate),!0},extraInfo:function(t,e,r){var i=this._validate(t,e,r,n.local.invalidDate).toJD(),a=this._toHaab(i),o=this._toTzolkin(i);return{haabMonthName:this.local.haabMonths[a[0]-1],haabMonth:a[0],haabDay:a[1],tzolkinDayName:this.local.tzolkinMonths[o[0]-1],tzolkinDay:o[0],tzolkinTrecena:o[1]}},_toHaab:function(t){var e=o((t-=this.jdEpoch)+8+340,365);return[Math.floor(e/20)+1,o(e,20)]},_toTzolkin:function(t){return[s((t-=this.jdEpoch)+20,20),s(t+4,13)]},toJD:function(t,e,r){var i=this._validate(t,e,r,n.local.invalidDate);return i.day()+20*i.month()+360*i.year()+this.jdEpoch},fromJD:function(t){t=Math.floor(t)+.5-this.jdEpoch;var e=Math.floor(t/360);t%=360,t+=t<0?360:0;var r=Math.floor(t/20),n=t%20;return this.newDate(e,r,n)}}),n.calendars.mayan=a},{"../main":558,"object-assign":449}],552:[function(t,e,r){var n=t("../main"),i=t("object-assign");function a(t){this.local=this.regionalOptions[t||""]||this.regionalOptions[""]}a.prototype=new n.baseCalendar;var o=n.instance("gregorian");i(a.prototype,{name:"Nanakshahi",jdEpoch:2257673.5,daysPerMonth:[31,31,31,31,31,30,30,30,30,30,30,30],hasYearZero:!1,minMonth:1,firstMonth:1,minDay:1,regionalOptions:{"":{name:"Nanakshahi",epochs:["BN","AN"],monthNames:["Chet","Vaisakh","Jeth","Harh","Sawan","Bhadon","Assu","Katak","Maghar","Poh","Magh","Phagun"],monthNamesShort:["Che","Vai","Jet","Har","Saw","Bha","Ass","Kat","Mgr","Poh","Mgh","Pha"],dayNames:["Somvaar","Mangalvar","Budhvaar","Veervaar","Shukarvaar","Sanicharvaar","Etvaar"],dayNamesShort:["Som","Mangal","Budh","Veer","Shukar","Sanichar","Et"],dayNamesMin:["So","Ma","Bu","Ve","Sh","Sa","Et"],digits:null,dateFormat:"dd-mm-yyyy",firstDay:0,isRTL:!1}},leapYear:function(t){var e=this._validate(t,this.minMonth,this.minDay,n.local.invalidYear||n.regionalOptions[""].invalidYear);return o.leapYear(e.year()+(e.year()<1?1:0)+1469)},weekOfYear:function(t,e,r){var n=this.newDate(t,e,r);return n.add(1-(n.dayOfWeek()||7),"d"),Math.floor((n.dayOfYear()-1)/7)+1},daysInMonth:function(t,e){var r=this._validate(t,e,this.minDay,n.local.invalidMonth);return this.daysPerMonth[r.month()-1]+(12===r.month()&&this.leapYear(r.year())?1:0)},weekDay:function(t,e,r){return(this.dayOfWeek(t,e,r)||7)<6},toJD:function(t,e,r){var i=this._validate(t,e,r,n.local.invalidMonth);(t=i.year())<0&&t++;for(var a=i.day(),s=1;s<i.month();s++)a+=this.daysPerMonth[s-1];return a+o.toJD(t+1468,3,13)},fromJD:function(t){t=Math.floor(t+.5);for(var e=Math.floor((t-(this.jdEpoch-1))/366);t>=this.toJD(e+1,1,1);)e++;for(var r=t-Math.floor(this.toJD(e,1,1)+.5)+1,n=1;r>this.daysInMonth(e,n);)r-=this.daysInMonth(e,n),n++;return this.newDate(e,n,r)}}),n.calendars.nanakshahi=a},{"../main":558,"object-assign":449}],553:[function(t,e,r){var n=t("../main"),i=t("object-assign");function a(t){this.local=this.regionalOptions[t||""]||this.regionalOptions[""]}a.prototype=new n.baseCalendar,i(a.prototype,{name:"Nepali",jdEpoch:1700709.5,daysPerMonth:[31,31,32,32,31,30,30,29,30,29,30,30],hasYearZero:!1,minMonth:1,firstMonth:1,minDay:1,daysPerYear:365,regionalOptions:{"":{name:"Nepali",epochs:["BBS","ABS"],monthNames:["Baisakh","Jestha","Ashadh","Shrawan","Bhadra","Ashwin","Kartik","Mangsir","Paush","Mangh","Falgun","Chaitra"],monthNamesShort:["Bai","Je","As","Shra","Bha","Ash","Kar","Mang","Pau","Ma","Fal","Chai"],dayNames:["Aaitabaar","Sombaar","Manglbaar","Budhabaar","Bihibaar","Shukrabaar","Shanibaar"],dayNamesShort:["Aaita","Som","Mangl","Budha","Bihi","Shukra","Shani"],dayNamesMin:["Aai","So","Man","Bu","Bi","Shu","Sha"],digits:null,dateFormat:"dd/mm/yyyy",firstDay:1,isRTL:!1}},leapYear:function(t){return this.daysInYear(t)!==this.daysPerYear},weekOfYear:function(t,e,r){var n=this.newDate(t,e,r);return n.add(-n.dayOfWeek(),"d"),Math.floor((n.dayOfYear()-1)/7)+1},daysInYear:function(t){if(t=this._validate(t,this.minMonth,this.minDay,n.local.invalidYear).year(),"undefined"==typeof this.NEPALI_CALENDAR_DATA[t])return this.daysPerYear;for(var e=0,r=this.minMonth;r<=12;r++)e+=this.NEPALI_CALENDAR_DATA[t][r];return e},daysInMonth:function(t,e){return t.year&&(e=t.month(),t=t.year()),this._validate(t,e,this.minDay,n.local.invalidMonth),"undefined"==typeof this.NEPALI_CALENDAR_DATA[t]?this.daysPerMonth[e-1]:this.NEPALI_CALENDAR_DATA[t][e]},weekDay:function(t,e,r){return 6!==this.dayOfWeek(t,e,r)},toJD:function(t,e,r){var i=this._validate(t,e,r,n.local.invalidDate);t=i.year(),e=i.month(),r=i.day();var a=n.instance(),o=0,s=e,l=t;this._createMissingCalendarData(t);var c=t-(s>9||9===s&&r>=this.NEPALI_CALENDAR_DATA[l][0]?56:57);for(9!==e&&(o=r,s--);9!==s;)s<=0&&(s=12,l--),o+=this.NEPALI_CALENDAR_DATA[l][s],s--;return 9===e?(o+=r-this.NEPALI_CALENDAR_DATA[l][0])<0&&(o+=a.daysInYear(c)):o+=this.NEPALI_CALENDAR_DATA[l][9]-this.NEPALI_CALENDAR_DATA[l][0],a.newDate(c,1,1).add(o,"d").toJD()},fromJD:function(t){var e=n.instance().fromJD(t),r=e.year(),i=e.dayOfYear(),a=r+56;this._createMissingCalendarData(a);for(var o=9,s=this.NEPALI_CALENDAR_DATA[a][0],l=this.NEPALI_CALENDAR_DATA[a][o]-s+1;i>l;)++o>12&&(o=1,a++),l+=this.NEPALI_CALENDAR_DATA[a][o];var c=this.NEPALI_CALENDAR_DATA[a][o]-(l-i);return this.newDate(a,o,c)},_createMissingCalendarData:function(t){var e=this.daysPerMonth.slice(0);e.unshift(17);for(var r=t-1;r<t+2;r++)"undefined"==typeof 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n.baseCalendar,i(a.prototype,{name:"UmmAlQura",hasYearZero:!1,minMonth:1,firstMonth:1,minDay:1,regionalOptions:{"":{name:"Umm al-Qura",epochs:["BH","AH"],monthNames:["Al-Muharram","Safar","Rabi' al-awwal","Rabi' Al-Thani","Jumada Al-Awwal","Jumada Al-Thani","Rajab","Sha'aban","Ramadan","Shawwal","Dhu al-Qi'dah","Dhu al-Hijjah"],monthNamesShort:["Muh","Saf","Rab1","Rab2","Jum1","Jum2","Raj","Sha'","Ram","Shaw","DhuQ","DhuH"],dayNames:["Yawm al-Ahad","Yawm al-Ithnain","Yawm al-Thal\u0101th\u0101\u2019","Yawm al-Arba\u2018\u0101\u2019","Yawm al-Kham\u012bs","Yawm al-Jum\u2018a","Yawm al-Sabt"],dayNamesMin:["Ah","Ith","Th","Ar","Kh","Ju","Sa"],digits:null,dateFormat:"yyyy/mm/dd",firstDay:6,isRTL:!0}},leapYear:function(t){var e=this._validate(t,this.minMonth,this.minDay,n.local.invalidYear);return 355===this.daysInYear(e.year())},weekOfYear:function(t,e,r){var n=this.newDate(t,e,r);return n.add(-n.dayOfWeek(),"d"),Math.floor((n.dayOfYear()-1)/7)+1},daysInYear:function(t){for(var e=0,r=1;r<=12;r++)e+=this.daysInMonth(t,r);return e},daysInMonth:function(t,e){for(var r=this._validate(t,e,this.minDay,n.local.invalidMonth).toJD()-24e5+.5,i=0,a=0;a<o.length;a++){if(o[a]>r)return o[i]-o[i-1];i++}return 30},weekDay:function(t,e,r){return 5!==this.dayOfWeek(t,e,r)},toJD:function(t,e,r){var i=this._validate(t,e,r,n.local.invalidDate),a=12*(i.year()-1)+i.month()-15292;return i.day()+o[a-1]-1+24e5-.5},fromJD:function(t){for(var e=t-24e5+.5,r=0,n=0;n<o.length&&!(o[n]>e);n++)r++;var i=r+15292,a=Math.floor((i-1)/12),s=a+1,l=i-12*a,c=e-o[r-1]+1;return this.newDate(s,l,c)},isValid:function(t,e,r){var i=n.baseCalendar.prototype.isValid.apply(this,arguments);return i&&(i=(t=null!=t.year?t.year:t)>=1276&&t<=1500),i},_validate:function(t,e,r,i){var a=n.baseCalendar.prototype._validate.apply(this,arguments);if(a.year<1276||a.year>1500)throw i.replace(/\{0\}/,this.local.name);return a}}),n.calendars.ummalqura=a;var 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n=t("object-assign");function i(){this.regionalOptions=[],this.regionalOptions[""]={invalidCalendar:"Calendar {0} not found",invalidDate:"Invalid {0} date",invalidMonth:"Invalid {0} month",invalidYear:"Invalid {0} year",differentCalendars:"Cannot mix {0} and {1} dates"},this.local=this.regionalOptions[""],this.calendars={},this._localCals={}}function a(t,e,r,n){if(this._calendar=t,this._year=e,this._month=r,this._day=n,0===this._calendar._validateLevel&&!this._calendar.isValid(this._year,this._month,this._day))throw(c.local.invalidDate||c.regionalOptions[""].invalidDate).replace(/\{0\}/,this._calendar.local.name)}function o(t,e){return"000000".substring(0,e-(t=""+t).length)+t}function s(){this.shortYearCutoff="+10"}function l(t){this.local=this.regionalOptions[t]||this.regionalOptions[""]}n(i.prototype,{instance:function(t,e){t=(t||"gregorian").toLowerCase(),e=e||"";var r=this._localCals[t+"-"+e];if(!r&&this.calendars[t]&&(r=new this.calendars[t](e),this._localCals[t+"-"+e]=r),!r)throw(this.local.invalidCalendar||this.regionalOptions[""].invalidCalendar).replace(/\{0\}/,t);return r},newDate:function(t,e,r,n,i){return(n=(null!=t&&t.year?t.calendar():"string"==typeof n?this.instance(n,i):n)||this.instance()).newDate(t,e,r)},substituteDigits:function(t){return function(e){return(e+"").replace(/[0-9]/g,function(e){return t[e]})}},substituteChineseDigits:function(t,e){return function(r){for(var n="",i=0;r>0;){var a=r%10;n=(0===a?"":t[a]+e[i])+n,i++,r=Math.floor(r/10)}return 0===n.indexOf(t[1]+e[1])&&(n=n.substr(1)),n||t[0]}}}),n(a.prototype,{newDate:function(t,e,r){return this._calendar.newDate(null==t?this:t,e,r)},year:function(t){return 0===arguments.length?this._year:this.set(t,"y")},month:function(t){return 0===arguments.length?this._month:this.set(t,"m")},day:function(t){return 0===arguments.length?this._day:this.set(t,"d")},date:function(t,e,r){if(!this._calendar.isValid(t,e,r))throw(c.local.invalidDate||c.regionalOptions[""].invalidDate).replace(/\{0\}/,this._calendar.local.name);return this._year=t,this._month=e,this._day=r,this},leapYear:function(){return this._calendar.leapYear(this)},epoch:function(){return this._calendar.epoch(this)},formatYear:function(){return this._calendar.formatYear(this)},monthOfYear:function(){return this._calendar.monthOfYear(this)},weekOfYear:function(){return this._calendar.weekOfYear(this)},daysInYear:function(){return this._calendar.daysInYear(this)},dayOfYear:function(){return this._calendar.dayOfYear(this)},daysInMonth:function(){return this._calendar.daysInMonth(this)},dayOfWeek:function(){return this._calendar.dayOfWeek(this)},weekDay:function(){return this._calendar.weekDay(this)},extraInfo:function(){return this._calendar.extraInfo(this)},add:function(t,e){return this._calendar.add(this,t,e)},set:function(t,e){return this._calendar.set(this,t,e)},compareTo:function(t){if(this._calendar.name!==t._calendar.name)throw(c.local.differentCalendars||c.regionalOptions[""].differentCalendars).replace(/\{0\}/,this._calendar.local.name).replace(/\{1\}/,t._calendar.local.name);var e=this._year!==t._year?this._year-t._year:this._month!==t._month?this.monthOfYear()-t.monthOfYear():this._day-t._day;return 0===e?0:e<0?-1:1},calendar:function(){return this._calendar},toJD:function(){return this._calendar.toJD(this)},fromJD:function(t){return this._calendar.fromJD(t)},toJSDate:function(){return this._calendar.toJSDate(this)},fromJSDate:function(t){return this._calendar.fromJSDate(t)},toString:function(){return(this.year()<0?"-":"")+o(Math.abs(this.year()),4)+"-"+o(this.month(),2)+"-"+o(this.day(),2)}}),n(s.prototype,{_validateLevel:0,newDate:function(t,e,r){return null==t?this.today():(t.year&&(this._validate(t,e,r,c.local.invalidDate||c.regionalOptions[""].invalidDate),r=t.day(),e=t.month(),t=t.year()),new a(this,t,e,r))},today:function(){return this.fromJSDate(new Date)},epoch:function(t){return this._validate(t,this.minMonth,this.minDay,c.local.invalidYear||c.regionalOptions[""].invalidYear).year()<0?this.local.epochs[0]:this.local.epochs[1]},formatYear:function(t){var e=this._validate(t,this.minMonth,this.minDay,c.local.invalidYear||c.regionalOptions[""].invalidYear);return(e.year()<0?"-":"")+o(Math.abs(e.year()),4)},monthsInYear:function(t){return this._validate(t,this.minMonth,this.minDay,c.local.invalidYear||c.regionalOptions[""].invalidYear),12},monthOfYear:function(t,e){var r=this._validate(t,e,this.minDay,c.local.invalidMonth||c.regionalOptions[""].invalidMonth);return(r.month()+this.monthsInYear(r)-this.firstMonth)%this.monthsInYear(r)+this.minMonth},fromMonthOfYear:function(t,e){var r=(e+this.firstMonth-2*this.minMonth)%this.monthsInYear(t)+this.minMonth;return this._validate(t,r,this.minDay,c.local.invalidMonth||c.regionalOptions[""].invalidMonth),r},daysInYear:function(t){var e=this._validate(t,this.minMonth,this.minDay,c.local.invalidYear||c.regionalOptions[""].invalidYear);return this.leapYear(e)?366:365},dayOfYear:function(t,e,r){var n=this._validate(t,e,r,c.local.invalidDate||c.regionalOptions[""].invalidDate);return n.toJD()-this.newDate(n.year(),this.fromMonthOfYear(n.year(),this.minMonth),this.minDay).toJD()+1},daysInWeek:function(){return 7},dayOfWeek:function(t,e,r){var n=this._validate(t,e,r,c.local.invalidDate||c.regionalOptions[""].invalidDate);return(Math.floor(this.toJD(n))+2)%this.daysInWeek()},extraInfo:function(t,e,r){return this._validate(t,e,r,c.local.invalidDate||c.regionalOptions[""].invalidDate),{}},add:function(t,e,r){return this._validate(t,this.minMonth,this.minDay,c.local.invalidDate||c.regionalOptions[""].invalidDate),this._correctAdd(t,this._add(t,e,r),e,r)},_add:function(t,e,r){if(this._validateLevel++,"d"===r||"w"===r){var n=t.toJD()+e*("w"===r?this.daysInWeek():1),i=t.calendar().fromJD(n);return this._validateLevel--,[i.year(),i.month(),i.day()]}try{var a=t.year()+("y"===r?e:0),o=t.monthOfYear()+("m"===r?e:0);i=t.day();"y"===r?(t.month()!==this.fromMonthOfYear(a,o)&&(o=this.newDate(a,t.month(),this.minDay).monthOfYear()),o=Math.min(o,this.monthsInYear(a)),i=Math.min(i,this.daysInMonth(a,this.fromMonthOfYear(a,o)))):"m"===r&&(!function(t){for(;o<t.minMonth;)a--,o+=t.monthsInYear(a);for(var e=t.monthsInYear(a);o>e-1+t.minMonth;)a++,o-=e,e=t.monthsInYear(a)}(this),i=Math.min(i,this.daysInMonth(a,this.fromMonthOfYear(a,o))));var s=[a,this.fromMonthOfYear(a,o),i];return this._validateLevel--,s}catch(t){throw 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i.local.unexpectedText||i.regionalOptions[""].unexpectedText;if(-1===h?h=this.today().year():h<100&&v&&(h+=-1===n?1900:this.today().year()-this.today().year()%100-(h<=n?0:100)),"string"==typeof p&&(p=s.call(this,h,p)),g>-1){p=1,d=g;for(var E=this.daysInMonth(h,p);d>E;E=this.daysInMonth(h,p))p++,d-=E}return f>-1?this.fromJD(f):this.newDate(h,p,d)},determineDate:function(t,e,r,n,i){r&&"object"!=typeof r&&(i=n,n=r,r=null),"string"!=typeof n&&(i=n,n="");var a=this;return e=e?e.newDate():null,t=null==t?e:"string"==typeof t?function(t){try{return a.parseDate(n,t,i)}catch(t){}for(var e=((t=t.toLowerCase()).match(/^c/)&&r?r.newDate():null)||a.today(),o=/([+-]?[0-9]+)\s*(d|w|m|y)?/g,s=o.exec(t);s;)e.add(parseInt(s[1],10),s[2]||"d"),s=o.exec(t);return e}(t):"number"==typeof 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u=S.x.head,f=S.y.head,h=S.x.tail+r,d=S.y.tail+n,m=S.x.text+r,y=S.y.text+n,x=o.rotationXYMatrix(E,m,y),w=o.apply2DTransform(x),M=o.apply2DTransform2(x),z=+F.attr("width"),O=+F.attr("height"),D=m-.5*z,P=D+z,R=y-.5*O,B=R+O,N=[[D,R,D,B],[D,B,P,B],[P,B,P,R],[P,R,D,R]].map(M);if(!N.reduce(function(t,e){return t^!!o.segmentsIntersect(u,f,u+1e6,f+1e6,e[0],e[1],e[2],e[3])},!1)){N.forEach(function(t){var e=o.segmentsIntersect(h,d,u,f,t[0],t[1],t[2],t[3]);e&&(h=e.x,d=e.y)});var j=e.arrowwidth,V=e.arrowcolor,U=e.arrowside,H=C.append("g").style({opacity:l.opacity(V)}).classed("annotation-arrow-g",!0),q=H.append("path").attr("d","M"+h+","+d+"L"+u+","+f).style("stroke-width",j+"px").call(l.stroke,l.rgb(V));if(g(q,U,e),_.annotationPosition&&q.node().parentNode&&!a){var G=u,Y=f;if(e.standoff){var W=Math.sqrt(Math.pow(u-h,2)+Math.pow(f-d,2));G+=e.standoff*(h-u)/W,Y+=e.standoff*(d-f)/W}var X,Z,$=H.append("path").classed("annotation-arrow",!0).classed("anndrag",!0).classed("cursor-move",!0).attr({d:"M3,3H-3V-3H3ZM0,0L"+(h-G)+","+(d-Y),transform:"translate("+G+","+Y+")"}).style("stroke-width",j+6+"px").call(l.stroke,"rgba(0,0,0,0)").call(l.fill,"rgba(0,0,0,0)");p.init({element:$.node(),gd:t,prepFn:function(){var t=c.getTranslate(I);X=t.x,Z=t.y,s&&s.autorange&&k(s._name+".autorange",!0),v&&v.autorange&&k(v._name+".autorange",!0)},moveFn:function(t,r){var n=w(X,Z),i=n[0]+t,a=n[1]+r;I.call(c.setTranslate,i,a),T("x",s?s.p2r(s.r2p(e.x)+t):e.x+t/b.w),T("y",v?v.p2r(v.r2p(e.y)+r):e.y-r/b.h),e.axref===e.xref&&T("ax",s.p2r(s.r2p(e.ax)+t)),e.ayref===e.yref&&T("ay",v.p2r(v.r2p(e.ay)+r)),H.attr("transform","translate("+t+","+r+")"),L.attr({transform:"rotate("+E+","+i+","+a+")"})},doneFn:function(){i.call("_guiRelayout",t,A());var 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e=t._fullLayout;e._infolayer.selectAll(".annotation").remove();for(var r=0;r<e.annotations.length;r++)e.annotations[r].visible&&v(t,r);return a.previousPromises(t)},drawOne:v,drawRaw:m}},{"../../lib":703,"../../lib/setcursor":723,"../../lib/svg_text_utils":727,"../../plot_api/plot_template":741,"../../plots/cartesian/axes":751,"../../plots/plots":812,"../../registry":831,"../color":580,"../dragelement":598,"../drawing":601,"../fx":619,"./draw_arrow_head":570,d3:157}],570:[function(t,e,r){"use strict";var n=t("d3"),i=t("../color"),a=t("./arrow_paths");e.exports=function(t,e,r){var o,s,l,c,u=t.node(),f=a[r.arrowhead||0],h=a[r.startarrowhead||0],p=(r.arrowwidth||1)*(r.arrowsize||1),d=(r.arrowwidth||1)*(r.startarrowsize||1),g=e.indexOf("start")>=0,v=e.indexOf("end")>=0,m=f.backoff*p+r.standoff,y=h.backoff*d+r.startstandoff;if("line"===u.nodeName){o={x:+t.attr("x1"),y:+t.attr("y1")},s={x:+t.attr("x2"),y:+t.attr("y2")};var 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r,n=null,i=1/0,a=0;a<t.length;a++)(r=t[a].spikeDistance)<i&&r<=e&&(n=t[a],i=r);return n}function vt(t){return t?{xa:t.xa,ya:t.ya,x:void 0!==t.xSpike?t.xSpike:(t.x0+t.x1)/2,y:void 0!==t.ySpike?t.ySpike:(t.y0+t.y1)/2,distance:t.distance,spikeDistance:t.spikeDistance,curveNumber:t.trace.index,color:t.color,pointNumber:t.index}:null}var mt={fullLayout:u,container:u._hoverlayer,outerContainer:u._paperdiv,event:e},yt=t._spikepoints,xt={vLinePoint:K.vLinePoint,hLinePoint:K.hLinePoint};if(t._spikepoints=xt,y&&0!==Z&&0!==$.length){var bt=$.filter(function(t){return t.ya.showspikes}),_t=gt(bt,Z);K.hLinePoint=vt(_t);var wt=$.filter(function(t){return t.xa.showspikes}),kt=gt(wt,Z);K.vLinePoint=vt(kt)}if(0===$.length){var Tt=h.unhoverRaw(t,e);return!y||null===K.hLinePoint&&null===K.vLinePoint||C(yt)&&E(K,mt),Tt}y&&C(yt)&&E(K,mt);$.sort(function(t,e){return t.distance-e.distance});var At=t._hoverdata,Mt=[];for(F=0;F<$.length;F++){var St=$[F],Et=g.makeEventData(St,St.trace,St.cd);if(!1!==St.hovertemplate){var Ct=!1;St.cd[St.index]&&St.cd[St.index].ht&&(Ct=St.cd[St.index].ht),St.hovertemplate=Ct||St.trace.hovertemplate||!1}St.eventData=[Et],Mt.push(Et)}t._hoverdata=Mt;var Lt="y"===D&&(J.length>1||$.length>1)||"closest"===D&&Q&&$.length>1,zt=f.combine(u.plot_bgcolor||f.background,u.paper_bgcolor),Ot={hovermode:D,rotateLabels:Lt,bgColor:zt,container:u._hoverlayer,outerContainer:u._paperdiv,commonLabelOpts:u.hoverlabel,hoverdistance:u.hoverdistance},It=A($,Ot,t);if(function(t,e,r){var n,i,a,o,s,l,c,u=0,f=1,h=t.size(),p=new Array(h);function d(t){var e=t[0],r=t[t.length-1];if(i=e.pmin-e.pos-e.dp+e.size,a=r.pos+r.dp+r.size-e.pmax,i>.01){for(s=t.length-1;s>=0;s--)t[s].dp+=i;n=!1}if(!(a<.01)){if(i<-.01){for(s=t.length-1;s>=0;s--)t[s].dp-=a;n=!1}if(n){var c=0;for(o=0;o<t.length;o++)(l=t[o]).pos+l.dp+l.size>e.pmax&&c++;for(o=t.length-1;o>=0&&!(c<=0);o--)(l=t[o]).pos>e.pmax-1&&(l.del=!0,c--);for(o=0;o<t.length&&!(c<=0);o++)if((l=t[o]).pos<e.pmin+1)for(l.del=!0,c--,a=2*l.size,s=t.length-1;s>=0;s--)t[s].dp-=a;for(o=t.length-1;o>=0&&!(c<=0);o--)(l=t[o]).pos+l.dp+l.size>e.pmax&&(l.del=!0,c--)}}}for(t.each(function(t,n){var i=t[e],a="x"===i._id.charAt(0),o=i.range;!n&&o&&o[0]>o[1]!==a&&(f=-1),p[n]=[{datum:t,i:n,traceIndex:t.trace.index,dp:0,pos:t.pos,posref:t.posref,size:t.by*(a?x:1)/2,pmin:0,pmax:a?r.width:r.height}]}),p.sort(function(t,e){return t[0].posref-e[0].posref||f*(e[0].traceIndex-t[0].traceIndex)});!n&&u<=h;){for(u++,n=!0,o=0;o<p.length-1;){var g=p[o],v=p[o+1],m=g[g.length-1],y=v[0];if((i=m.pos+m.dp+m.size-y.pos-y.dp+y.size)>.01&&m.pmin===y.pmin&&m.pmax===y.pmax){for(s=v.length-1;s>=0;s--)v[s].dp+=i;for(g.push.apply(g,v),p.splice(o+1,1),c=0,s=g.length-1;s>=0;s--)c+=g[s].dp;for(a=c/g.length,s=g.length-1;s>=0;s--)g[s].dp-=a;n=!1}else o++}p.forEach(d)}for(o=p.length-1;o>=0;o--){var b=p[o];for(s=b.length-1;s>=0;s--){var _=b[s],w=_.datum;w.offset=_.dp,w.del=_.del}}}(It,Lt?"xa":"ya",u),M(It,Lt),e.target&&e.target.tagName){var Dt=d.getComponentMethod("annotations","hasClickToShow")(t,Mt);c(n.select(e.target),Dt?"pointer":"")}if(!e.target||a||!function(t,e,r){if(!r||r.length!==t._hoverdata.length)return!0;for(var n=r.length-1;n>=0;n--){var i=r[n],a=t._hoverdata[n];if(i.curveNumber!==a.curveNumber||String(i.pointNumber)!==String(a.pointNumber)||String(i.pointNumbers)!==String(a.pointNumbers))return!0}return!1}(t,0,At))return;At&&t.emit("plotly_unhover",{event:e,points:At});t.emit("plotly_hover",{event:e,points:t._hoverdata,xaxes:w,yaxes:k,xvals:P,yvals:R})}(t,e,r,a)})},r.loneHover=function(t,e){var r=!0;Array.isArray(t)||(r=!1,t=[t]);var i=t.map(function(t){return{color:t.color||f.defaultLine,x0:t.x0||t.x||0,x1:t.x1||t.x||0,y0:t.y0||t.y||0,y1:t.y1||t.y||0,xLabel:t.xLabel,yLabel:t.yLabel,zLabel:t.zLabel,text:t.text,name:t.name,idealAlign:t.idealAlign,borderColor:t.borderColor,fontFamily:t.fontFamily,fontSize:t.fontSize,fontColor:t.fontColor,nameLength:t.nameLength,textAlign:t.textAlign,trace:t.trace||{index:0,hoverinfo:""},xa:{_offset:0},ya:{_offset:0},index:0,hovertemplate:t.hovertemplate||!1,eventData:t.eventData||!1,hovertemplateLabels:t.hovertemplateLabels||!1}}),a=n.select(e.container),o=e.outerContainer?n.select(e.outerContainer):a,s={hovermode:"closest",rotateLabels:!1,bgColor:e.bgColor||f.background,container:a,outerContainer:o},l=A(i,s,e.gd),c=0,u=0;return l.sort(function(t,e){return t.y0-e.y0}).each(function(t,r){var n=t.y0-t.by/2;t.offset=n-5<c?c-n+5:0,c=n+t.by+t.offset,r===e.anchorIndex&&(u=t.offset)}).each(function(t){t.offset-=u}),M(l,s.rotateLabels),r?l:l.node()};var T=/<extra>([\s\S]*)<\/extra>/;function A(t,e,r){var i=r._fullLayout,a=e.hovermode,s=e.rotateLabels,c=e.bgColor,h=e.container,p=e.outerContainer,d=e.commonLabelOpts||{},g=e.fontFamily||v.HOVERFONT,y=e.fontSize||v.HOVERFONTSIZE,x=t[0],b=x.xa,_=x.ya,A="y"===a?"yLabel":"xLabel",M=x[A],S=(String(M)||"").split(" ")[0],E=p.node().getBoundingClientRect(),C=E.top,z=E.width,O=E.height,I=void 0!==M&&x.distance<=e.hoverdistance&&("x"===a||"y"===a);if(I){var D,P,R=!0;for(D=0;D<t.length;D++)if(R&&void 0===t[D].zLabel&&(R=!1),P=t[D].hoverinfo||t[D].trace.hoverinfo){var F=Array.isArray(P)?P:P.split("+");if(-1===F.indexOf("all")&&-1===F.indexOf(a)){I=!1;break}}R&&(I=!1)}var B=h.selectAll("g.axistext").data(I?[0]:[]);B.enter().append("g").classed("axistext",!0),B.exit().remove(),B.each(function(){var e=n.select(this),i=o.ensureSingle(e,"path","",function(t){t.style({"stroke-width":"1px"})}),s=o.ensureSingle(e,"text","",function(t){t.attr("data-notex",1)}),c=d.bgcolor||f.defaultLine,h=d.bordercolor||f.contrast(c),p=f.contrast(c);i.style({fill:c,stroke:h}),s.text(M).call(u.font,d.font.family||g,d.font.size||y,d.font.color||p).call(l.positionText,0,0).call(l.convertToTspans,r),e.attr("transform","");var v=s.node().getBoundingClientRect();if("x"===a){s.attr("text-anchor","middle").call(l.positionText,0,"top"===b.side?C-v.bottom-w-k:C-v.top+w+k);var m="top"===b.side?"-":"";i.attr("d","M0,0L"+w+","+m+w+"H"+(k+v.width/2)+"v"+m+(2*k+v.height)+"H-"+(k+v.width/2)+"V"+m+w+"H-"+w+"Z"),e.attr("transform","translate("+(b._offset+(x.x0+x.x1)/2)+","+(_._offset+("top"===b.side?0:_._length))+")")}else{s.attr("text-anchor","right"===_.side?"start":"end").call(l.positionText,("right"===_.side?1:-1)*(k+w),C-v.top-v.height/2);var T="right"===_.side?"":"-";i.attr("d","M0,0L"+T+w+","+w+"V"+(k+v.height/2)+"h"+T+(2*k+v.width)+"V-"+(k+v.height/2)+"H"+T+w+"V-"+w+"Z"),e.attr("transform","translate("+(b._offset+("right"===_.side?b._length:0))+","+(_._offset+(x.y0+x.y1)/2)+")")}t=t.filter(function(t){return void 0!==t.zLabelVal||(t[A]||"").split(" ")[0]===S})});var N=h.selectAll("g.hovertext").data(t,function(t){return[t.trace.index,t.index,t.x0,t.y0,t.name,t.attr,t.xa,t.ya||""].join(",")});return N.enter().append("g").classed("hovertext",!0).each(function(){var t=n.select(this);t.append("rect").call(f.fill,f.addOpacity(c,.8)),t.append("text").classed("name",!0),t.append("path").style("stroke-width","1px"),t.append("text").classed("nums",!0).call(u.font,g,y)}),N.exit().remove(),N.each(function(t){var e=n.select(this).attr("transform",""),h="",p="",d=t.bgcolor||t.color,v=f.combine(f.opacity(d)?d:f.defaultLine,c),x=f.combine(f.opacity(t.color)?t.color:f.defaultLine,c),b=t.borderColor||f.contrast(v);void 0!==t.nameOverride&&(t.name=t.nameOverride),t.name&&(t.trace._meta&&(t.name=o.templateString(t.name,t.trace._meta)),h=L(t.name,t.nameLength)),void 0!==t.zLabel?(void 0!==t.xLabel&&(p+="x: "+t.xLabel+"<br>"),void 0!==t.yLabel&&(p+="y: "+t.yLabel+"<br>"),p+=(p?"z: ":"")+t.zLabel):I&&t[a+"Label"]===M?p=t[("x"===a?"y":"x")+"Label"]||"":void 0===t.xLabel?void 0!==t.yLabel&&"scattercarpet"!==t.trace.type&&(p=t.yLabel):p=void 0===t.yLabel?t.xLabel:"("+t.xLabel+", "+t.yLabel+")",!t.text&&0!==t.text||Array.isArray(t.text)||(p+=(p?"<br>":"")+t.text),void 0!==t.extraText&&(p+=(p?"<br>":"")+t.extraText),""!==p||t.hovertemplate||(""===h&&e.remove(),p=h);var _=i._d3locale,A=t.hovertemplate||!1,S=t.hovertemplateLabels||t,E=t.eventData[0]||{};A&&(p=(p=o.hovertemplateString(A,S,_,E,t.trace._meta)).replace(T,function(e,r){return h=L(r,t.nameLength),""}));var D=e.select("text.nums").call(u.font,t.fontFamily||g,t.fontSize||y,t.fontColor||b).text(p).attr("data-notex",1).call(l.positionText,0,0).call(l.convertToTspans,r),P=e.select("text.name"),R=0,F=0;if(h&&h!==p){P.call(u.font,t.fontFamily||g,t.fontSize||y,x).text(h).attr("data-notex",1).call(l.positionText,0,0).call(l.convertToTspans,r);var B=P.node().getBoundingClientRect();R=B.width+2*k,F=B.height+2*k}else P.remove(),e.select("rect").remove();e.select("path").style({fill:v,stroke:b});var N,j,V=D.node().getBoundingClientRect(),U=t.xa._offset+(t.x0+t.x1)/2,H=t.ya._offset+(t.y0+t.y1)/2,q=Math.abs(t.x1-t.x0),G=Math.abs(t.y1-t.y0),Y=V.width+w+k+R;if(t.ty0=C-V.top,t.bx=V.width+2*k,t.by=Math.max(V.height+2*k,F),t.anchor="start",t.txwidth=V.width,t.tx2width=R,t.offset=0,s)t.pos=U,N=H+G/2+Y<=O,j=H-G/2-Y>=0,"top"!==t.idealAlign&&N||!j?N?(H+=G/2,t.anchor="start"):t.anchor="middle":(H-=G/2,t.anchor="end");else if(t.pos=H,N=U+q/2+Y<=z,j=U-q/2-Y>=0,"left"!==t.idealAlign&&N||!j)if(N)U+=q/2,t.anchor="start";else{t.anchor="middle";var W=Y/2,X=U+W-z,Z=U-W;X>0&&(U-=X),Z<0&&(U+=-Z)}else U-=q/2,t.anchor="end";D.attr("text-anchor",t.anchor),R&&P.attr("text-anchor",t.anchor),e.attr("transform","translate("+U+","+H+")"+(s?"rotate("+m+")":""))}),N}function M(t,e){t.each(function(t){var r=n.select(this);if(t.del)return r.remove();var i=r.select("text.nums"),a=t.anchor,o="end"===a?-1:1,s={start:1,end:-1,middle:0}[a],c=s*(w+k),f=c+s*(t.txwidth+k),h=0,p=t.offset;"middle"===a&&(c-=t.tx2width/2,f+=t.txwidth/2+k),e&&(p*=-_,h=t.offset*b),r.select("path").attr("d","middle"===a?"M-"+(t.bx/2+t.tx2width/2)+","+(p-t.by/2)+"h"+t.bx+"v"+t.by+"h-"+t.bx+"Z":"M0,0L"+(o*w+h)+","+(w+p)+"v"+(t.by/2-w)+"h"+o*t.bx+"v-"+t.by+"H"+(o*w+h)+"V"+(p-w)+"Z");var d=c+h,g=p+t.ty0-t.by/2+k,v=t.textAlign||"auto";"auto"!==v&&("left"===v&&"start"!==a?(i.attr("text-anchor","start"),d="middle"===a?-t.bx/2-t.tx2width/2+k:-t.bx-k):"right"===v&&"end"!==a&&(i.attr("text-anchor","end"),d="middle"===a?t.bx/2-t.tx2width/2-k:t.bx+k)),i.call(l.positionText,d,g),t.tx2width&&(r.select("text.name").call(l.positionText,f+s*k+h,p+t.ty0-t.by/2+k),r.select("rect").call(u.setRect,f+(s-1)*t.tx2width/2+h,p-t.by/2-1,t.tx2width,t.by+2))})}function S(t,e){var r=t.index,n=t.trace||{},a=t.cd[0],s=t.cd[r]||{};function l(t){return t||i(t)&&0===t}var c=Array.isArray(r)?function(t,e){var i=o.castOption(a,r,t);return l(i)?i:o.extractOption({},n,"",e)}:function(t,e){return o.extractOption(s,n,t,e)};function u(e,r,n){var i=c(r,n);l(i)&&(t[e]=i)}if(u("hoverinfo","hi","hoverinfo"),u("bgcolor","hbg","hoverlabel.bgcolor"),u("borderColor","hbc","hoverlabel.bordercolor"),u("fontFamily","htf","hoverlabel.font.family"),u("fontSize","hts","hoverlabel.font.size"),u("fontColor","htc","hoverlabel.font.color"),u("nameLength","hnl","hoverlabel.namelength"),u("textAlign","hta","hoverlabel.align"),t.posref="y"===e||"closest"===e&&"h"===n.orientation?t.xa._offset+(t.x0+t.x1)/2:t.ya._offset+(t.y0+t.y1)/2,t.x0=o.constrain(t.x0,0,t.xa._length),t.x1=o.constrain(t.x1,0,t.xa._length),t.y0=o.constrain(t.y0,0,t.ya._length),t.y1=o.constrain(t.y1,0,t.ya._length),void 0!==t.xLabelVal&&(t.xLabel="xLabel"in t?t.xLabel:p.hoverLabelText(t.xa,t.xLabelVal),t.xVal=t.xa.c2d(t.xLabelVal)),void 0!==t.yLabelVal&&(t.yLabel="yLabel"in t?t.yLabel:p.hoverLabelText(t.ya,t.yLabelVal),t.yVal=t.ya.c2d(t.yLabelVal)),void 0!==t.zLabelVal&&void 0===t.zLabel&&(t.zLabel=String(t.zLabelVal)),!(isNaN(t.xerr)||"log"===t.xa.type&&t.xerr<=0)){var f=p.tickText(t.xa,t.xa.c2l(t.xerr),"hover").text;void 0!==t.xerrneg?t.xLabel+=" +"+f+" / -"+p.tickText(t.xa,t.xa.c2l(t.xerrneg),"hover").text:t.xLabel+=" \xb1 "+f,"x"===e&&(t.distance+=1)}if(!(isNaN(t.yerr)||"log"===t.ya.type&&t.yerr<=0)){var h=p.tickText(t.ya,t.ya.c2l(t.yerr),"hover").text;void 0!==t.yerrneg?t.yLabel+=" +"+h+" / -"+p.tickText(t.ya,t.ya.c2l(t.yerrneg),"hover").text:t.yLabel+=" \xb1 "+h,"y"===e&&(t.distance+=1)}var d=t.hoverinfo||t.trace.hoverinfo;return d&&"all"!==d&&(-1===(d=Array.isArray(d)?d:d.split("+")).indexOf("x")&&(t.xLabel=void 0),-1===d.indexOf("y")&&(t.yLabel=void 0),-1===d.indexOf("z")&&(t.zLabel=void 0),-1===d.indexOf("text")&&(t.text=void 0),-1===d.indexOf("name")&&(t.name=void 0)),t}function E(t,e){var r,n,i=e.container,o=e.fullLayout,s=e.event,l=!!t.hLinePoint,c=!!t.vLinePoint;if(i.selectAll(".spikeline").remove(),c||l){var h=f.combine(o.plot_bgcolor,o.paper_bgcolor);if(l){var 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n=t("d3"),i=t("../../lib"),a=t("../../plots/plots"),o=t("../../registry"),s=t("../../lib/events"),l=t("../dragelement"),c=t("../drawing"),u=t("../color"),f=t("../../lib/svg_text_utils"),h=t("./handle_click"),p=t("./constants"),d=t("../../constants/interactions"),g=t("../../constants/alignment"),v=g.LINE_SPACING,m=g.FROM_TL,y=g.FROM_BR,x=t("./get_legend_data"),b=t("./style"),_=t("./helpers"),w=d.DBLCLICKDELAY;function k(t,e,r,n,i){var a=r.data()[0][0].trace,l={event:i,node:r.node(),curveNumber:a.index,expandedIndex:a._expandedIndex,data:t.data,layout:t.layout,frames:t._transitionData._frames,config:t._context,fullData:t._fullData,fullLayout:t._fullLayout};if(a._group&&(l.group=a._group),o.traceIs(a,"pie-like")&&(l.label=r.datum()[0].label),!1!==s.triggerHandler(t,"plotly_legendclick",l))if(1===n)e._clickTimeout=setTimeout(function(){h(r,t,n)},w);else 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e=t._fullLayout;if(t._context.staticPlot)n.select(t).selectAll(".drag").remove();else if(e._has("cartesian")||e._has("splom")){Object.keys(e._plots||{}).sort(function(t,r){if((e._plots[t].mainplot&&!0)===(e._plots[r].mainplot&&!0)){var n=t.split("y"),i=r.split("y");return n[0]===i[0]?Number(n[1]||1)-Number(i[1]||1):Number(n[0]||1)-Number(i[0]||1)}return e._plots[t].mainplot?1:-1}).forEach(function(r){var n=e._plots[r],o=n.xaxis,c=n.yaxis;if(!n.mainplot){var u=s(t,n,o._offset,c._offset,o._length,c._length,"ns","ew");u.onmousemove=function(e){t._fullLayout._rehover=function(){t._fullLayout._hoversubplot===r&&i.hover(t,e,r)},i.hover(t,e,r),t._fullLayout._lasthover=u,t._fullLayout._hoversubplot=r},u.onmouseout=function(e){t._dragging||(t._fullLayout._hoversubplot=null,a.unhover(t,e))},t._context.showAxisDragHandles&&(s(t,n,o._offset-l,c._offset-l,l,l,"n","w"),s(t,n,o._offset+o._length,c._offset-l,l,l,"n","e"),s(t,n,o._offset-l,c._offset+c._length,l,l,"s","w"),s(t,n,o._offset+o._length,c._offset+c._length,l,l,"s","e"))}if(t._context.showAxisDragHandles){if(r===o._mainSubplot){var f=o._mainLinePosition;"top"===o.side&&(f-=l),s(t,n,o._offset+.1*o._length,f,.8*o._length,l,"","ew"),s(t,n,o._offset,f,.1*o._length,l,"","w"),s(t,n,o._offset+.9*o._length,f,.1*o._length,l,"","e")}if(r===c._mainSubplot){var 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r=t.projection;return(e._isScoped?h:e._isClipped?d:p)(t,r)}},{"../../lib":703,"../../registry":831,d3:157}],786:[function(t,e,r){"use strict";var n=t("../registry"),i=t("./cartesian/constants").SUBPLOT_PATTERN;r.getSubplotCalcData=function(t,e,r){var i=n.subplotsRegistry[e];if(!i)return[];for(var a=i.attr,o=[],s=0;s<t.length;s++){var l=t[s];l[0].trace[a]===r&&o.push(l)}return o},r.getModuleCalcData=function(t,e){var r,i=[],a=[];if(!(r="string"==typeof e?n.getModule(e).plot:"function"==typeof e?e:e.plot))return[i,t];for(var o=0;o<t.length;o++){var s=t[o],l=s[0].trace;!0===l.visible&&0!==l._length&&(l._module.plot===r?i.push(s):a.push(s))}return[i,a]},r.getSubplotData=function(t,e,r){if(!n.subplotsRegistry[e])return[];var a,o,s,l=n.subplotsRegistry[e].attr,c=[];if("gl2d"===e){var u=r.match(i);o="x"+u[1],s="y"+u[2]}for(var f=0;f<t.length;f++)a=t[f],"gl2d"===e&&n.traceIs(a,"gl2d")?a[l[0]]===o&&a[l[1]]===s&&c.push(a):a[l]===r&&c.push(a);return 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m=n/(f[2]-f[0])*(l[2]-l[0])+l[0],y=i/(f[3]-f[1])*(l[3]-l[1])+l[1];c.boxInited||(c.boxStart[0]=m,c.boxStart[1]=y,c.dragStart[0]=n,c.dragStart[1]=i),c.boxEnd[0]=m,c.boxEnd[1]=y,c.boxInited=!0,c.boxEnabled||c.boxStart[0]===c.boxEnd[0]&&c.boxStart[1]===c.boxEnd[1]||(c.boxEnabled=!0);var x=Math.abs(c.dragStart[0]-n)<g,b=Math.abs(c.dragStart[1]-i)<g;if(!function(){for(var e=t.graphDiv._fullLayout._axisConstraintGroups,r=t.xaxis._id,n=t.yaxis._id,i=0;i<e.length;i++)if(-1!==e[i][r]){if(-1!==e[i][n])return!0;break}return!1}()||x&&b)x&&(c.boxEnd[0]=c.boxStart[0]),b&&(c.boxEnd[1]=c.boxStart[1]);else{a=c.boxEnd[0]-c.boxStart[0],s=c.boxEnd[1]-c.boxStart[1];var _=(l[3]-l[1])/(l[2]-l[0]);Math.abs(a*_)>Math.abs(s)?(c.boxEnd[1]=c.boxStart[1]+Math.abs(a)*_*(s>=0?1:-1),c.boxEnd[1]<l[1]?(c.boxEnd[1]=l[1],c.boxEnd[0]=c.boxStart[0]+(l[1]-c.boxStart[1])/Math.abs(_)):c.boxEnd[1]>l[3]&&(c.boxEnd[1]=l[3],c.boxEnd[0]=c.boxStart[0]+(l[3]-c.boxStart[1])/Math.abs(_))):(c.boxEnd[0]=c.boxStart[0]+Math.abs(s)/_*(a>=0?1:-1),c.boxEnd[0]<l[0]?(c.boxEnd[0]=l[0],c.boxEnd[1]=c.boxStart[1]+(l[0]-c.boxStart[0])*Math.abs(_)):c.boxEnd[0]>l[2]&&(c.boxEnd[0]=l[2],c.boxEnd[1]=c.boxStart[1]+(l[2]-c.boxStart[0])*Math.abs(_)))}}else c.boxEnabled?(a=c.boxStart[0]!==c.boxEnd[0],s=c.boxStart[1]!==c.boxEnd[1],a||s?(a&&(v(0,c.boxStart[0],c.boxEnd[0]),t.xaxis.autorange=!1),s&&(v(1,c.boxStart[1],c.boxEnd[1]),t.yaxis.autorange=!1),t.relayoutCallback()):t.glplot.setDirty(),c.boxEnabled=!1,c.boxInited=!1):c.boxInited&&(c.boxInited=!1);break;case"pan":c.boxEnabled=!1,c.boxInited=!1,e?(c.panning||(c.dragStart[0]=n,c.dragStart[1]=i),Math.abs(c.dragStart[0]-n)<d&&(n=c.dragStart[0]),Math.abs(c.dragStart[1]-i)<d&&(i=c.dragStart[1]),a=(h-n)*(l[2]-l[0])/(r.viewBox[2]-r.viewBox[0]),s=(p-i)*(l[3]-l[1])/(r.viewBox[3]-r.viewBox[1]),l[0]+=a,l[2]+=a,l[1]+=s,l[3]+=s,t.setRanges(l),c.panning=!0,c.lastInputTime=Date.now(),u(),t.cameraChanged(),t.handleAnnotations()):c.panning&&(c.panning=!1,t.relayoutCallback())}c.lastPos[0]=n,c.lastPos[1]=i}return c.mouseListener=n(e,f),e.addEventListener("touchstart",function(t){var r=a(t.changedTouches[0],e);f(0,r[0],r[1]),f(1,r[0],r[1]),t.preventDefault()},!!s&&{passive:!1}),e.addEventListener("touchmove",function(t){t.preventDefault();var r=a(t.changedTouches[0],e);f(1,r[0],r[1]),t.preventDefault()},!!s&&{passive:!1}),e.addEventListener("touchend",function(t){f(0,c.lastPos[0],c.lastPos[1]),t.preventDefault()},!!s&&{passive:!1}),c.wheelListener=i(e,function(e,n){if(!t.scrollZoom)return!1;var i=t.calcDataBox(),a=r.viewBox,o=c.lastPos[0],s=c.lastPos[1],l=Math.exp(5*n/(a[3]-a[1])),f=o/(a[2]-a[0])*(i[2]-i[0])+i[0],h=s/(a[3]-a[1])*(i[3]-i[1])+i[1];return i[0]=(i[0]-f)*l+f,i[2]=(i[2]-f)*l+f,i[1]=(i[1]-h)*l+h,i[3]=(i[3]-h)*l+h,t.setRanges(i),c.lastInputTime=Date.now(),u(),t.cameraChanged(),t.handleAnnotations(),t.relayoutCallback(),!0},!0),c}},{"../cartesian/constants":757,"has-passive-events":406,"mouse-change":430,"mouse-event-offset":431,"mouse-wheel":433}],788:[function(t,e,r){"use strict";var n=t("../cartesian/axes"),i=t("../../lib/str2rgbarray");function 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o=a.prototype,s=["xaxis","yaxis"];o.merge=function(t){var e,r,n,a,o,l,c,u,f,h,p;for(this.titleEnable=!1,this.backgroundColor=i(t.plot_bgcolor),h=0;h<2;++h){var d=(e=s[h]).charAt(0);for(n=(r=t[this.scene[e]._name]).title.text===this.scene.fullLayout._dfltTitle[d]?"":r.title.text,p=0;p<=2;p+=2)this.labelEnable[h+p]=!1,this.labels[h+p]=n,this.labelColor[h+p]=i(r.title.font.color),this.labelFont[h+p]=r.title.font.family,this.labelSize[h+p]=r.title.font.size,this.labelPad[h+p]=this.getLabelPad(e,r),this.tickEnable[h+p]=!1,this.tickColor[h+p]=i((r.tickfont||{}).color),this.tickAngle[h+p]="auto"===r.tickangle?0:Math.PI*-r.tickangle/180,this.tickPad[h+p]=this.getTickPad(r),this.tickMarkLength[h+p]=0,this.tickMarkWidth[h+p]=r.tickwidth||0,this.tickMarkColor[h+p]=i(r.tickcolor),this.borderLineEnable[h+p]=!1,this.borderLineColor[h+p]=i(r.linecolor),this.borderLineWidth[h+p]=r.linewidth||0;c=this.hasSharedAxis(r),o=this.hasAxisInDfltPos(e,r)&&!c,l=this.hasAxisInAltrPos(e,r)&&!c,a=r.mirror||!1,u=c?-1!==String(a).indexOf("all"):!!a,f=c?"allticks"===a:-1!==String(a).indexOf("ticks"),o?this.labelEnable[h]=!0:l&&(this.labelEnable[h+2]=!0),o?this.tickEnable[h]=r.showticklabels:l&&(this.tickEnable[h+2]=r.showticklabels),(o||u)&&(this.borderLineEnable[h]=r.showline),(l||u)&&(this.borderLineEnable[h+2]=r.showline),(o||f)&&(this.tickMarkLength[h]=this.getTickMarkLength(r)),(l||f)&&(this.tickMarkLength[h+2]=this.getTickMarkLength(r)),this.gridLineEnable[h]=r.showgrid,this.gridLineColor[h]=i(r.gridcolor),this.gridLineWidth[h]=r.gridwidth,this.zeroLineEnable[h]=r.zeroline,this.zeroLineColor[h]=i(r.zerolinecolor),this.zeroLineWidth[h]=r.zerolinewidth}},o.hasSharedAxis=function(t){var e=this.scene,r=e.fullLayout._subplots.gl2d;return 0!==n.findSubplotsWithAxis(r,t).indexOf(e.id)},o.hasAxisInDfltPos=function(t,e){var r=e.side;return"xaxis"===t?"bottom"===r:"yaxis"===t?"left"===r:void 0},o.hasAxisInAltrPos=function(t,e){var r=e.side;return"xaxis"===t?"top"===r:"yaxis"===t?"right"===r:void 0},o.getLabelPad=function(t,e){var r=e.title.font.size,n=e.showticklabels;return"xaxis"===t?"top"===e.side?r*(1.5+(n?1:0))-10:r*(1.5+(n?.5:0))-10:"yaxis"===t?"right"===e.side?10+r*(1.5+(n?1:.5)):10+r*(1.5+(n?.5:0)):void 0},o.getTickPad=function(t){return"outside"===t.ticks?10+t.ticklen:15},o.getTickMarkLength=function(t){if(!t.ticks)return 0;var e=t.ticklen;return"inside"===t.ticks?-e:e},e.exports=function(t){return new a(t)}},{"../../lib/str2rgbarray":726,"../cartesian/axes":751}],789:[function(t,e,r){"use strict";var n=t("../../plot_api/edit_types").overrideAll,i=t("./scene2d"),a=t("../layout_attributes"),o=t("../../constants/xmlns_namespaces"),s=t("../cartesian/constants"),l=t("../cartesian"),c=t("../../components/fx/layout_attributes"),u=t("../get_data").getSubplotData;r.name="gl2d",r.attr=["xaxis","yaxis"],r.idRoot=["x","y"],r.idRegex=s.idRegex,r.attrRegex=s.attrRegex,r.attributes=t("../cartesian/attributes"),r.supplyLayoutDefaults=function(t,e,r){e._has("cartesian")||l.supplyLayoutDefaults(t,e,r)},r.layoutAttrOverrides=n(l.layoutAttributes,"plot","from-root"),r.baseLayoutAttrOverrides=n({plot_bgcolor:a.plot_bgcolor,hoverlabel:c.hoverlabel},"plot","nested"),r.plot=function(t){for(var e=t._fullLayout,r=t._fullData,n=e._subplots.gl2d,a=0;a<n.length;a++){var o=n[a],s=e._plots[o],l=u(r,"gl2d",o),c=s._scene2d;void 0===c&&(c=new i({id:o,graphDiv:t,container:t.querySelector(".gl-container"),staticPlot:t._context.staticPlot,plotGlPixelRatio:t._context.plotGlPixelRatio},e),s._scene2d=c),c.plot(l,t.calcdata,e,t.layout)}},r.clean=function(t,e,r,n){for(var i=n._subplots.gl2d||[],a=0;a<i.length;a++){var o=i[a],s=n._plots[o];if(s._scene2d)0===u(t,"gl2d",o).length&&(s._scene2d.destroy(),delete n._plots[o])}l.clean.apply(this,arguments)},r.drawFramework=function(t){t._context.staticPlot||l.drawFramework(t)},r.toSVG=function(t){for(var e=t._fullLayout,r=e._subplots.gl2d,n=0;n<r.length;n++){var i=e._plots[r[n]]._scene2d,a=i.toImage("png");e._glimages.append("svg:image").attr({xmlns:o.svg,"xlink:href":a,x:0,y:0,width:"100%",height:"100%",preserveAspectRatio:"none"}),i.destroy()}},r.updateFx=function(t){for(var e=t._fullLayout,r=e._subplots.gl2d,n=0;n<r.length;n++){e._plots[r[n]]._scene2d.updateFx(e.dragmode)}}},{"../../components/fx/layout_attributes":620,"../../constants/xmlns_namespaces":681,"../../plot_api/edit_types":734,"../cartesian":762,"../cartesian/attributes":749,"../cartesian/constants":757,"../get_data":786,"../layout_attributes":803,"./scene2d":790}],790:[function(t,e,r){"use strict";var n,i,a=t("../../registry"),o=t("../../plots/cartesian/axes"),s=t("../../components/fx"),l=t("gl-plot2d"),c=t("gl-spikes2d"),u=t("gl-select-box"),f=t("webgl-context"),h=t("./convert"),p=t("./camera"),d=t("../../lib/show_no_webgl_msg"),g=t("../cartesian/constraints"),v=g.enforce,m=g.clean,y=t("../cartesian/autorange").doAutoRange,x=["xaxis","yaxis"],b=t("../cartesian/constants").SUBPLOT_PATTERN;function _(t,e){this.container=t.container,this.graphDiv=t.graphDiv,this.pixelRatio=t.plotGlPixelRatio||window.devicePixelRatio,this.id=t.id,this.staticPlot=!!t.staticPlot,this.scrollZoom=this.graphDiv._context._scrollZoom.cartesian,this.fullData=null,this.updateRefs(e),this.makeFramework(),this.stopped||(this.glplotOptions=h(this),this.glplotOptions.merge(e),this.glplot=l(this.glplotOptions),this.camera=p(this),this.traces={},this.spikes=c(this.glplot),this.selectBox=u(this.glplot,{innerFill:!1,outerFill:!0}),this.lastButtonState=0,this.pickResult=null,this.isMouseOver=!0,this.stopped=!1,this.redraw=this.draw.bind(this),this.redraw())}e.exports=_;var w=_.prototype;w.makeFramework=function(){if(this.staticPlot){if(!(i||(n=document.createElement("canvas"),i=f({canvas:n,preserveDrawingBuffer:!1,premultipliedAlpha:!0,antialias:!0}))))throw new Error("Error creating static canvas/context for image server");this.canvas=n,this.gl=i}else{var t=this.container.querySelector(".gl-canvas-focus"),e=f({canvas:t,preserveDrawingBuffer:!0,premultipliedAlpha:!0});if(!e)return d(this),void(this.stopped=!0);this.canvas=t,this.gl=e}var r=this.canvas;r.style.width="100%",r.style.height="100%",r.style.position="absolute",r.style.top="0px",r.style.left="0px",r.style["pointer-events"]="none",this.updateSize(r),r.className+=" user-select-none";var a=this.svgContainer=document.createElementNS("http://www.w3.org/2000/svg","svg");a.style.position="absolute",a.style.top=a.style.left="0px",a.style.width=a.style.height="100%",a.style["z-index"]=20,a.style["pointer-events"]="none";var o=this.mouseContainer=document.createElement("div");o.style.position="absolute",o.style["pointer-events"]="auto",this.pickCanvas=this.container.querySelector(".gl-canvas-pick");var s=this.container;s.appendChild(a),s.appendChild(o);var l=this;o.addEventListener("mouseout",function(){l.isMouseOver=!1,l.unhover()}),o.addEventListener("mouseover",function(){l.isMouseOver=!0})},w.toImage=function(t){t||(t="png"),this.stopped=!0,this.staticPlot&&this.container.appendChild(n),this.updateSize(this.canvas);var e=this.glplot.gl,r=e.drawingBufferWidth,i=e.drawingBufferHeight;e.clearColor(1,1,1,0),e.clear(e.COLOR_BUFFER_BIT|e.DEPTH_BUFFER_BIT),this.glplot.setDirty(),this.glplot.draw(),e.bindFramebuffer(e.FRAMEBUFFER,null);var a=new Uint8Array(r*i*4);e.readPixels(0,0,r,i,e.RGBA,e.UNSIGNED_BYTE,a);for(var o=0,s=i-1;o<s;++o,--s)for(var l=0;l<r;++l)for(var c=0;c<4;++c){var u=a[4*(r*o+l)+c];a[4*(r*o+l)+c]=a[4*(r*s+l)+c],a[4*(r*s+l)+c]=u}var f=document.createElement("canvas");f.width=r,f.height=i;var h,p=f.getContext("2d"),d=p.createImageData(r,i);switch(d.data.set(a),p.putImageData(d,0,0),t){case"jpeg":h=f.toDataURL("image/jpeg");break;case"webp":h=f.toDataURL("image/webp");break;default:h=f.toDataURL("image/png")}return this.staticPlot&&this.container.removeChild(n),h},w.updateSize=function(t){t||(t=this.canvas);var e=this.pixelRatio,r=this.fullLayout,n=r.width,i=r.height,a=0|Math.ceil(e*n),o=0|Math.ceil(e*i);return t.width===a&&t.height===o||(t.width=a,t.height=o),t},w.computeTickMarks=function(){this.xaxis.setScale(),this.yaxis.setScale();for(var t=[o.calcTicks(this.xaxis),o.calcTicks(this.yaxis)],e=0;e<2;++e)for(var r=0;r<t[e].length;++r)t[e][r].text=t[e][r].text+"";return t},w.updateRefs=function(t){this.fullLayout=t;var e=this.id.match(b),r="xaxis"+e[1],n="yaxis"+e[2];this.xaxis=this.fullLayout[r],this.yaxis=this.fullLayout[n]},w.relayoutCallback=function(){var t=this.graphDiv,e=this.xaxis,r=this.yaxis,n=t.layout,i={},o=i[e._name+".range"]=e.range.slice(),s=i[r._name+".range"]=r.range.slice();i[e._name+".autorange"]=e.autorange,i[r._name+".autorange"]=r.autorange,a.call("_storeDirectGUIEdit",t.layout,t._fullLayout._preGUI,i);var l=n[e._name];l.range=o,l.autorange=e.autorange;var c=n[r._name];c.range=s,c.autorange=r.autorange,i.lastInputTime=this.camera.lastInputTime,t.emit("plotly_relayout",i)},w.cameraChanged=function(){var t=this.camera;this.glplot.setDataBox(this.calcDataBox());var e=this.computeTickMarks();(function(t,e){for(var r=0;r<2;++r){var n=t[r],i=e[r];if(n.length!==i.length)return!0;for(var a=0;a<n.length;++a)if(n[a].x!==i[a].x)return!0}return!1})(e,this.glplotOptions.ticks)&&(this.glplotOptions.ticks=e,this.glplotOptions.dataBox=t.dataBox,this.glplot.update(this.glplotOptions),this.handleAnnotations())},w.handleAnnotations=function(){for(var t=this.graphDiv,e=this.fullLayout.annotations,r=0;r<e.length;r++){var n=e[r];n.xref===this.xaxis._id&&n.yref===this.yaxis._id&&a.getComponentMethod("annotations","drawOne")(t,r)}},w.destroy=function(){if(this.glplot){var t=this.traces;t&&Object.keys(t).map(function(e){t[e].dispose(),delete 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l,c,u=r._size,f=this.xaxis.domain,h=this.yaxis.domain;for(o.viewBox=[u.l+f[0]*u.w,u.b+h[0]*u.h,i-u.r-(1-f[1])*u.w,a-u.t-(1-h[1])*u.h],this.mouseContainer.style.width=u.w*(f[1]-f[0])+"px",this.mouseContainer.style.height=u.h*(h[1]-h[0])+"px",this.mouseContainer.height=u.h*(h[1]-h[0]),this.mouseContainer.style.left=u.l+f[0]*u.w+"px",this.mouseContainer.style.top=u.t+(1-h[1])*u.h+"px",c=0;c<2;++c)(l=this[x[c]])._length=o.viewBox[c+2]-o.viewBox[c],y(this.graphDiv,l),l.setScale();v(s),o.ticks=this.computeTickMarks(),o.dataBox=this.calcDataBox(),o.merge(r),n.update(o),this.glplot.draw()},w.calcDataBox=function(){var t=this.xaxis,e=this.yaxis,r=t.range,n=e.range,i=t.r2l,a=e.r2l;return[i(r[0]),a(n[0]),i(r[1]),a(n[1])]},w.setRanges=function(t){var e=this.xaxis,r=this.yaxis,n=e.l2r,i=r.l2r;e.range=[n(t[0]),n(t[2])],r.range=[i(t[1]),i(t[3])]},w.updateTraces=function(t,e){var r,n,i,a=Object.keys(this.traces);this.fullData=t;t:for(r=0;r<a.length;r++){var o=a[r],s=this.traces[o];for(n=0;n<t.length;n++)if((i=t[n]).uid===o&&i.type===s.type)continue t;s.dispose(),delete this.traces[o]}for(r=0;r<t.length;r++){i=t[r];var l=e[r],c=this.traces[i.uid];c?c.update(i,l):(c=i._module.plot(this,i,l),this.traces[i.uid]=c)}this.glplot.objects.sort(function(t,e){return t._trace.index-e._trace.index})},w.updateFx=function(t){"lasso"===t||"select"===t?(this.pickCanvas.style["pointer-events"]="none",this.mouseContainer.style["pointer-events"]="none"):(this.pickCanvas.style["pointer-events"]="auto",this.mouseContainer.style["pointer-events"]="auto"),this.mouseContainer.style.cursor="pan"===t?"move":"zoom"===t?"crosshair":null},w.emitPointAction=function(t,e){for(var r,n=t.trace.uid,i=t.pointIndex,a=0;a<this.fullData.length;a++)this.fullData[a].uid===n&&(r=this.fullData[a]);var o={x:t.traceCoord[0],y:t.traceCoord[1],curveNumber:r.index,pointNumber:i,data:r._input,fullData:this.fullData,xaxis:this.xaxis,yaxis:this.yaxis};s.appendArrayPointValue(o,r,i),this.graphDiv.emit(e,{points:[o]})},w.draw=function(){if(!this.stopped){requestAnimationFrame(this.redraw);var t=this.glplot,e=this.camera,r=e.mouseListener,n=1===this.lastButtonState&&0===r.buttons,i=this.fullLayout;this.lastButtonState=r.buttons,this.cameraChanged();var a,o=r.x*t.pixelRatio,l=this.canvas.height-t.pixelRatio*r.y;if(e.boxEnabled&&"zoom"===i.dragmode){this.selectBox.enabled=!0;for(var c=this.selectBox.selectBox=[Math.min(e.boxStart[0],e.boxEnd[0]),Math.min(e.boxStart[1],e.boxEnd[1]),Math.max(e.boxStart[0],e.boxEnd[0]),Math.max(e.boxStart[1],e.boxEnd[1])],u=0;u<2;u++)e.boxStart[u]===e.boxEnd[u]&&(c[u]=t.dataBox[u],c[u+2]=t.dataBox[u+2]);t.setDirty()}else if(!e.panning&&this.isMouseOver){this.selectBox.enabled=!1;var f=i._size,h=this.xaxis.domain,p=this.yaxis.domain,d=(a=t.pick(o/t.pixelRatio+f.l+h[0]*f.w,l/t.pixelRatio-(f.t+(1-p[1])*f.h)))&&a.object._trace.handlePick(a);if(d&&n&&this.emitPointAction(d,"plotly_click"),a&&"skip"!==a.object._trace.hoverinfo&&i.hovermode&&d&&(!this.lastPickResult||this.lastPickResult.traceUid!==d.trace.uid||this.lastPickResult.dataCoord[0]!==d.dataCoord[0]||this.lastPickResult.dataCoord[1]!==d.dataCoord[1])){var g=d;this.lastPickResult={traceUid:d.trace?d.trace.uid:null,dataCoord:d.dataCoord.slice()},this.spikes.update({center:a.dataCoord}),g.screenCoord=[((t.viewBox[2]-t.viewBox[0])*(a.dataCoord[0]-t.dataBox[0])/(t.dataBox[2]-t.dataBox[0])+t.viewBox[0])/t.pixelRatio,(this.canvas.height-(t.viewBox[3]-t.viewBox[1])*(a.dataCoord[1]-t.dataBox[1])/(t.dataBox[3]-t.dataBox[1])-t.viewBox[1])/t.pixelRatio],this.emitPointAction(d,"plotly_hover");var v=this.fullData[g.trace.index]||{},m=g.pointIndex,y=s.castHoverinfo(v,i,m);if(y&&"all"!==y){var x=y.split("+");-1===x.indexOf("x")&&(g.traceCoord[0]=void 0),-1===x.indexOf("y")&&(g.traceCoord[1]=void 0),-1===x.indexOf("z")&&(g.traceCoord[2]=void 0),-1===x.indexOf("text")&&(g.textLabel=void 0),-1===x.indexOf("name")&&(g.name=void 0)}s.loneHover({x:g.screenCoord[0],y:g.screenCoord[1],xLabel:this.hoverFormatter("xaxis",g.traceCoord[0]),yLabel:this.hoverFormatter("yaxis",g.traceCoord[1]),zLabel:g.traceCoord[2],text:g.textLabel,name:g.name,color:s.castHoverOption(v,m,"bgcolor")||g.color,borderColor:s.castHoverOption(v,m,"bordercolor"),fontFamily:s.castHoverOption(v,m,"font.family"),fontSize:s.castHoverOption(v,m,"font.size"),fontColor:s.castHoverOption(v,m,"font.color"),nameLength:s.castHoverOption(v,m,"namelength"),textAlign:s.castHoverOption(v,m,"align")},{container:this.svgContainer,gd:this.graphDiv})}}a||this.unhover(),t.draw()}},w.unhover=function(){this.lastPickResult&&(this.spikes.update({}),this.lastPickResult=null,this.graphDiv.emit("plotly_unhover"),s.loneUnhover(this.svgContainer))},w.hoverFormatter=function(t,e){if(void 0!==e){var r=this[t];return o.tickText(r,r.c2l(e),"hover").text}}},{"../../components/fx":619,"../../lib/show_no_webgl_msg":724,"../../plots/cartesian/axes":751,"../../registry":831,"../cartesian/autorange":750,"../cartesian/constants":757,"../cartesian/constraints":758,"./camera":787,"./convert":788,"gl-plot2d":286,"gl-select-box":298,"gl-spikes2d":307,"webgl-context":543}],791:[function(t,e,r){"use strict";var n=t("../../plot_api/edit_types").overrideAll,i=t("../../components/fx/layout_attributes"),a=t("./scene"),o=t("../get_data").getSubplotData,s=t("../../lib"),l=t("../../constants/xmlns_namespaces");r.name="gl3d",r.attr="scene",r.idRoot="scene",r.idRegex=r.attrRegex=s.counterRegex("scene"),r.attributes=t("./layout/attributes"),r.layoutAttributes=t("./layout/layout_attributes"),r.baseLayoutAttrOverrides=n({hoverlabel:i.hoverlabel},"plot","nested"),r.supplyLayoutDefaults=t("./layout/defaults"),r.plot=function(t){for(var e=t._fullLayout,r=t._fullData,n=e._subplots.gl3d,i=0;i<n.length;i++){var s=n[i],l=o(r,"gl3d",s),c=e[s],u=c.camera,f=c._scene;f||(f=new a({id:s,graphDiv:t,container:t.querySelector(".gl-container"),staticPlot:t._context.staticPlot,plotGlPixelRatio:t._context.plotGlPixelRatio,camera:u},e),c._scene=f),f.viewInitial||(f.viewInitial={up:{x:u.up.x,y:u.up.y,z:u.up.z},eye:{x:u.eye.x,y:u.eye.y,z:u.eye.z},center:{x:u.center.x,y:u.center.y,z:u.center.z}}),f.plot(l,e,t.layout)}},r.clean=function(t,e,r,n){for(var i=n._subplots.gl3d||[],a=0;a<i.length;a++){var o=i[a];!e[o]&&n[o]._scene&&(n[o]._scene.destroy(),n._infolayer&&n._infolayer.selectAll(".annotation-"+o).remove())}},r.toSVG=function(t){for(var e=t._fullLayout,r=e._subplots.gl3d,n=e._size,i=0;i<r.length;i++){var a=e[r[i]],o=a.domain,s=a._scene,c=s.toImage("png");e._glimages.append("svg:image").attr({xmlns:l.svg,"xlink:href":c,x:n.l+n.w*o.x[0],y:n.t+n.h*(1-o.y[1]),width:n.w*(o.x[1]-o.x[0]),height:n.h*(o.y[1]-o.y[0]),preserveAspectRatio:"none"}),s.destroy()}},r.cleanId=function(t){if(t.match(/^scene[0-9]*$/)){var e=t.substr(5);return"1"===e&&(e=""),"scene"+e}},r.updateFx=function(t){for(var e=t._fullLayout,r=e._subplots.gl3d,n=0;n<r.length;n++){e[r[n]]._scene.updateFx(e.dragmode,e.hovermode)}}},{"../../components/fx/layout_attributes":620,"../../constants/xmlns_namespaces":681,"../../lib":703,"../../plot_api/edit_types":734,"../get_data":786,"./layout/attributes":792,"./layout/defaults":796,"./layout/layout_attributes":797,"./scene":801}],792:[function(t,e,r){"use strict";e.exports={scene:{valType:"subplotid",dflt:"scene",editType:"calc+clearAxisTypes"}}},{}],793:[function(t,e,r){"use strict";var n=t("../../../components/color"),i=t("../../cartesian/layout_attributes"),a=t("../../../lib/extend").extendFlat,o=t("../../../plot_api/edit_types").overrideAll;e.exports=o({visible:i.visible,showspikes:{valType:"boolean",dflt:!0},spikesides:{valType:"boolean",dflt:!0},spikethickness:{valType:"number",min:0,dflt:2},spikecolor:{valType:"color",dflt:n.defaultLine},showbackground:{valType:"boolean",dflt:!1},backgroundcolor:{valType:"color",dflt:"rgba(204, 204, 204, 0.5)"},showaxeslabels:{valType:"boolean",dflt:!0},color:i.color,categoryorder:i.categoryorder,categoryarray:i.categoryarray,title:i.title,type:a({},i.type,{values:["-","linear","log","date","category"]}),autorange:i.autorange,rangemode:i.rangemode,range:a({},i.range,{items:[{valType:"any",editType:"plot",impliedEdits:{"^autorange":!1}},{valType:"any",editType:"plot",impliedEdits:{"^autorange":!1}}],anim:!1}),tickmode:i.tickmode,nticks:i.nticks,tick0:i.tick0,dtick:i.dtick,tickvals:i.tickvals,ticktext:i.ticktext,ticks:i.ticks,mirror:i.mirror,ticklen:i.ticklen,tickwidth:i.tickwidth,tickcolor:i.tickcolor,showticklabels:i.showticklabels,tickfont:i.tickfont,tickangle:i.tickangle,tickprefix:i.tickprefix,showtickprefix:i.showtickprefix,ticksuffix:i.ticksuffix,showticksuffix:i.showticksuffix,showexponent:i.showexponent,exponentformat:i.exponentformat,separatethousands:i.separatethousands,tickformat:i.tickformat,tickformatstops:i.tickformatstops,hoverformat:i.hoverformat,showline:i.showline,linecolor:i.linecolor,linewidth:i.linewidth,showgrid:i.showgrid,gridcolor:a({},i.gridcolor,{dflt:"rgb(204, 204, 204)"}),gridwidth:i.gridwidth,zeroline:i.zeroline,zerolinecolor:i.zerolinecolor,zerolinewidth:i.zerolinewidth,_deprecated:{title:i._deprecated.title,titlefont:i._deprecated.titlefont}},"plot","from-root")},{"../../../components/color":580,"../../../lib/extend":693,"../../../plot_api/edit_types":734,"../../cartesian/layout_attributes":763}],794:[function(t,e,r){"use strict";var n=t("tinycolor2").mix,i=t("../../../lib"),a=t("../../../plot_api/plot_template"),o=t("./axis_attributes"),s=t("../../cartesian/type_defaults"),l=t("../../cartesian/axis_defaults"),c=["xaxis","yaxis","zaxis"];e.exports=function(t,e,r){var u,f;function h(t,e){return i.coerce(u,f,o,t,e)}for(var p=0;p<c.length;p++){var d=c[p];u=t[d]||{},(f=a.newContainer(e,d))._id=d[0]+r.scene,f._name=d,s(u,f,h,r),l(u,f,h,{font:r.font,letter:d[0],data:r.data,showGrid:!0,noTickson:!0,bgColor:r.bgColor,calendar:r.calendar},r.fullLayout),h("gridcolor",n(f.color,r.bgColor,13600/187).toRgbString()),h("title.text",d[0]),f.setScale=i.noop,h("showspikes")&&(h("spikesides"),h("spikethickness"),h("spikecolor",f.color)),h("showaxeslabels"),h("showbackground")&&h("backgroundcolor")}}},{"../../../lib":703,"../../../plot_api/plot_template":741,"../../cartesian/axis_defaults":753,"../../cartesian/type_defaults":774,"./axis_attributes":793,tinycolor2:524}],795:[function(t,e,r){"use strict";var n=t("../../../lib/str2rgbarray"),i=t("../../../lib"),a=["xaxis","yaxis","zaxis"];function o(){this.bounds=[[-10,-10,-10],[10,10,10]],this.ticks=[[],[],[]],this.tickEnable=[!0,!0,!0],this.tickFont=["sans-serif","sans-serif","sans-serif"],this.tickSize=[12,12,12],this.tickAngle=[0,0,0],this.tickColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.tickPad=[18,18,18],this.labels=["x","y","z"],this.labelEnable=[!0,!0,!0],this.labelFont=["Open Sans","Open Sans","Open Sans"],this.labelSize=[20,20,20],this.labelColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.labelPad=[30,30,30],this.lineEnable=[!0,!0,!0],this.lineMirror=[!1,!1,!1],this.lineWidth=[1,1,1],this.lineColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.lineTickEnable=[!0,!0,!0],this.lineTickMirror=[!1,!1,!1],this.lineTickLength=[10,10,10],this.lineTickWidth=[1,1,1],this.lineTickColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.gridEnable=[!0,!0,!0],this.gridWidth=[1,1,1],this.gridColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.zeroEnable=[!0,!0,!0],this.zeroLineColor=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.zeroLineWidth=[2,2,2],this.backgroundEnable=[!0,!0,!0],this.backgroundColor=[[.8,.8,.8,.5],[.8,.8,.8,.5],[.8,.8,.8,.5]],this._defaultTickPad=this.tickPad.slice(),this._defaultLabelPad=this.labelPad.slice(),this._defaultLineTickLength=this.lineTickLength.slice()}o.prototype.merge=function(t,e){for(var r=0;r<3;++r){var o=e[a[r]];o.visible?(this.labels[r]=t._meta?i.templateString(o.title.text,t._meta):o.title.text,"font"in o.title&&(o.title.font.color&&(this.labelColor[r]=n(o.title.font.color)),o.title.font.family&&(this.labelFont[r]=o.title.font.family),o.title.font.size&&(this.labelSize[r]=o.title.font.size)),"showline"in o&&(this.lineEnable[r]=o.showline),"linecolor"in o&&(this.lineColor[r]=n(o.linecolor)),"linewidth"in o&&(this.lineWidth[r]=o.linewidth),"showgrid"in o&&(this.gridEnable[r]=o.showgrid),"gridcolor"in o&&(this.gridColor[r]=n(o.gridcolor)),"gridwidth"in o&&(this.gridWidth[r]=o.gridwidth),"log"===o.type?this.zeroEnable[r]=!1:"zeroline"in o&&(this.zeroEnable[r]=o.zeroline),"zerolinecolor"in o&&(this.zeroLineColor[r]=n(o.zerolinecolor)),"zerolinewidth"in o&&(this.zeroLineWidth[r]=o.zerolinewidth),"ticks"in o&&o.ticks?this.lineTickEnable[r]=!0:this.lineTickEnable[r]=!1,"ticklen"in o&&(this.lineTickLength[r]=this._defaultLineTickLength[r]=o.ticklen),"tickcolor"in o&&(this.lineTickColor[r]=n(o.tickcolor)),"tickwidth"in o&&(this.lineTickWidth[r]=o.tickwidth),"tickangle"in o&&(this.tickAngle[r]="auto"===o.tickangle?-3600:Math.PI*-o.tickangle/180),"showticklabels"in o&&(this.tickEnable[r]=o.showticklabels),"tickfont"in o&&(o.tickfont.color&&(this.tickColor[r]=n(o.tickfont.color)),o.tickfont.family&&(this.tickFont[r]=o.tickfont.family),o.tickfont.size&&(this.tickSize[r]=o.tickfont.size)),"mirror"in o?-1!==["ticks","all","allticks"].indexOf(o.mirror)?(this.lineTickMirror[r]=!0,this.lineMirror[r]=!0):!0===o.mirror?(this.lineTickMirror[r]=!1,this.lineMirror[r]=!0):(this.lineTickMirror[r]=!1,this.lineMirror[r]=!1):this.lineMirror[r]=!1,"showbackground"in o&&!1!==o.showbackground?(this.backgroundEnable[r]=!0,this.backgroundColor[r]=n(o.backgroundcolor)):this.backgroundEnable[r]=!1):(this.tickEnable[r]=!1,this.labelEnable[r]=!1,this.lineEnable[r]=!1,this.lineTickEnable[r]=!1,this.gridEnable[r]=!1,this.zeroEnable[r]=!1,this.backgroundEnable[r]=!1)}},e.exports=function(t,e){var r=new o;return r.merge(t,e),r}},{"../../../lib":703,"../../../lib/str2rgbarray":726}],796:[function(t,e,r){"use strict";var n=t("../../../lib"),i=t("../../../components/color"),a=t("../../../registry"),o=t("../../subplot_defaults"),s=t("./axis_defaults"),l=t("./layout_attributes"),c=t("../../get_data").getSubplotData,u="gl3d";function f(t,e,r,n){for(var o=r("bgcolor"),l=i.combine(o,n.paper_bgcolor),f=["up","center","eye"],h=0;h<f.length;h++)r("camera."+f[h]+".x"),r("camera."+f[h]+".y"),r("camera."+f[h]+".z");r("camera.projection.type");var p=!!r("aspectratio.x")&&!!r("aspectratio.y")&&!!r("aspectratio.z"),d=r("aspectmode",p?"manual":"auto");p||(t.aspectratio=e.aspectratio={x:1,y:1,z:1},"manual"===d&&(e.aspectmode="auto"),t.aspectmode=e.aspectmode);var g=c(n.fullData,u,n.id);s(t,e,{font:n.font,scene:n.id,data:g,bgColor:l,calendar:n.calendar,fullLayout:n.fullLayout}),a.getComponentMethod("annotations3d","handleDefaults")(t,e,n);var v=n.getDfltFromLayout("dragmode");if(!1!==v&&!v)if(v="orbit",t.camera&&t.camera.up){var m=t.camera.up.x,y=t.camera.up.y,x=t.camera.up.z;0!==x&&(m&&y&&x?x/Math.sqrt(m*m+y*y+x*x)>.999&&(v="turntable"):v="turntable")}else v="turntable";r("dragmode",v),r("hovermode",n.getDfltFromLayout("hovermode"))}e.exports=function(t,e,r){var i=e._basePlotModules.length>1;o(t,e,r,{type:u,attributes:l,handleDefaults:f,fullLayout:e,font:e.font,fullData:r,getDfltFromLayout:function(e){if(!i)return n.validate(t[e],l[e])?t[e]:void 0},paper_bgcolor:e.paper_bgcolor,calendar:e.calendar})}},{"../../../components/color":580,"../../../lib":703,"../../../registry":831,"../../get_data":786,"../../subplot_defaults":826,"./axis_defaults":794,"./layout_attributes":797}],797:[function(t,e,r){"use strict";var n=t("./axis_attributes"),i=t("../../domain").attributes,a=t("../../../lib/extend").extendFlat,o=t("../../../lib").counterRegex;function s(t,e,r){return{x:{valType:"number",dflt:t,editType:"camera"},y:{valType:"number",dflt:e,editType:"camera"},z:{valType:"number",dflt:r,editType:"camera"},editType:"camera"}}e.exports={_arrayAttrRegexps:[o("scene",".annotations",!0)],bgcolor:{valType:"color",dflt:"rgba(0,0,0,0)",editType:"plot"},camera:{up:a(s(0,0,1),{}),center:a(s(0,0,0),{}),eye:a(s(1.25,1.25,1.25),{}),projection:{type:{valType:"enumerated",values:["perspective","orthographic"],dflt:"perspective",editType:"calc"},editType:"calc"},editType:"camera"},domain:i({name:"scene",editType:"plot"}),aspectmode:{valType:"enumerated",values:["auto","cube","data","manual"],dflt:"auto",editType:"plot",impliedEdits:{"aspectratio.x":void 0,"aspectratio.y":void 0,"aspectratio.z":void 0}},aspectratio:{x:{valType:"number",min:0,editType:"plot",impliedEdits:{"^aspectmode":"manual"}},y:{valType:"number",min:0,editType:"plot",impliedEdits:{"^aspectmode":"manual"}},z:{valType:"number",min:0,editType:"plot",impliedEdits:{"^aspectmode":"manual"}},editType:"plot",impliedEdits:{aspectmode:"manual"}},xaxis:n,yaxis:n,zaxis:n,dragmode:{valType:"enumerated",values:["orbit","turntable","zoom","pan",!1],editType:"plot"},hovermode:{valType:"enumerated",values:["closest",!1],dflt:"closest",editType:"modebar"},uirevision:{valType:"any",editType:"none"},editType:"plot",_deprecated:{cameraposition:{valType:"info_array",editType:"camera"}}}},{"../../../lib":703,"../../../lib/extend":693,"../../domain":776,"./axis_attributes":793}],798:[function(t,e,r){"use strict";var n=t("../../../lib/str2rgbarray"),i=["xaxis","yaxis","zaxis"];function a(){this.enabled=[!0,!0,!0],this.colors=[[0,0,0,1],[0,0,0,1],[0,0,0,1]],this.drawSides=[!0,!0,!0],this.lineWidth=[1,1,1]}a.prototype.merge=function(t){for(var e=0;e<3;++e){var r=t[i[e]];r.visible?(this.enabled[e]=r.showspikes,this.colors[e]=n(r.spikecolor),this.drawSides[e]=r.spikesides,this.lineWidth[e]=r.spikethickness):(this.enabled[e]=!1,this.drawSides[e]=!1)}},e.exports=function(t){var e=new a;return e.merge(t),e}},{"../../../lib/str2rgbarray":726}],799:[function(t,e,r){"use strict";e.exports=function(t){for(var e=t.axesOptions,r=t.glplot.axesPixels,s=t.fullSceneLayout,l=[[],[],[]],c=0;c<3;++c){var u=s[a[c]];if(u._length=(r[c].hi-r[c].lo)*r[c].pixelsPerDataUnit/t.dataScale[c],Math.abs(u._length)===1/0||isNaN(u._length))l[c]=[];else{u._input_range=u.range.slice(),u.range[0]=r[c].lo/t.dataScale[c],u.range[1]=r[c].hi/t.dataScale[c],u._m=1/(t.dataScale[c]*r[c].pixelsPerDataUnit),u.range[0]===u.range[1]&&(u.range[0]-=1,u.range[1]+=1);var f=u.tickmode;if("auto"===u.tickmode){u.tickmode="linear";var h=u.nticks||i.constrain(u._length/40,4,9);n.autoTicks(u,Math.abs(u.range[1]-u.range[0])/h)}for(var p=n.calcTicks(u),d=0;d<p.length;++d)p[d].x=p[d].x*t.dataScale[c],"date"===u.type&&(p[d].text=p[d].text.replace(/\<br\>/g," "));l[c]=p,u.tickmode=f}}e.ticks=l;for(var c=0;c<3;++c){o[c]=.5*(t.glplot.bounds[0][c]+t.glplot.bounds[1][c]);for(var d=0;d<2;++d)e.bounds[d][c]=t.glplot.bounds[d][c]}t.contourLevels=function(t){for(var e=new Array(3),r=0;r<3;++r){for(var n=t[r],i=new Array(n.length),a=0;a<n.length;++a)i[a]=n[a].x;e[r]=i}return e}(l)};var n=t("../../cartesian/axes"),i=t("../../../lib"),a=["xaxis","yaxis","zaxis"],o=[0,0,0]},{"../../../lib":703,"../../cartesian/axes":751}],800:[function(t,e,r){"use strict";function n(t,e){var r,n,i=[0,0,0,0];for(r=0;r<4;++r)for(n=0;n<4;++n)i[n]+=t[4*r+n]*e[r];return i}e.exports=function(t,e){return n(t.projection,n(t.view,n(t.model,[e[0],e[1],e[2],1])))}},{}],801:[function(t,e,r){"use strict";var n,i,a=t("gl-plot3d").createCamera,o=t("gl-plot3d").createScene,s=t("webgl-context"),l=t("has-passive-events"),c=t("../../registry"),u=t("../../lib"),f=t("../../plots/cartesian/axes"),h=t("../../components/fx"),p=t("../../lib/str2rgbarray"),d=t("../../lib/show_no_webgl_msg"),g=t("./project"),v=t("./layout/convert"),m=t("./layout/spikes"),y=t("./layout/tick_marks");function x(t,e,r,a){if(t.initializeGLCamera(),!function(t,e,r,a,l){var c={canvas:a,gl:l,container:t.container,axes:t.axesOptions,spikes:t.spikeOptions,pickRadius:10,snapToData:!0,autoScale:!0,autoBounds:!1,cameraObject:e,pixelRatio:r};if(t.staticMode){if(!(i||(n=document.createElement("canvas"),i=s({canvas:n,preserveDrawingBuffer:!0,premultipliedAlpha:!0,antialias:!0}))))throw new Error("error creating static canvas/context for image server");c.pixelRatio=t.pixelRatio,c.gl=i,c.canvas=n}try{t.glplot=o(c)}catch(t){return!1}return!0}(t,t.camera,e,r,a))return d(t);var c=t.graphDiv,p=function(t){if(!1!==t.fullSceneLayout.dragmode){var e={};e[t.id+".camera"]=T(t.camera),t.saveCamera(c.layout),t.graphDiv.emit("plotly_relayout",e)}};return t.glplot.canvas.addEventListener("mouseup",function(){p(t)}),t.glplot.canvas.addEventListener("wheel",function(){c._context._scrollZoom.gl3d&&p(t)},!!l&&{passive:!1}),t.glplot.canvas.addEventListener("mousemove",function(){if(!1!==t.fullSceneLayout.dragmode&&0!==t.camera.mouseListener.buttons){var e={};e[t.id+".camera"]=T(t.camera),t.graphDiv.emit("plotly_relayouting",e)}}),t.staticMode||t.glplot.canvas.addEventListener("webglcontextlost",function(e){c&&c.emit&&c.emit("plotly_webglcontextlost",{event:e,layer:t.id})},!1),t.glplot.camera=t.camera,t.glplot.oncontextloss=function(){t.recoverContext()},t.glplot.onrender=function(t){var e,r=t.graphDiv,n=t.svgContainer,i=t.container.getBoundingClientRect(),a=i.width,o=i.height;n.setAttributeNS(null,"viewBox","0 0 "+a+" "+o),n.setAttributeNS(null,"width",a),n.setAttributeNS(null,"height",o),y(t),t.glplot.axes.update(t.axesOptions);for(var s,l=Object.keys(t.traces),c=null,p=t.glplot.selection,d=0;d<l.length;++d)"skip"!==(e=t.traces[l[d]]).data.hoverinfo&&e.handlePick(p)&&(c=e),e.setContourLevels&&e.setContourLevels();function v(e,r){var n=t.fullSceneLayout[e];return f.tickText(n,n.d2l(r),"hover").text}if(null!==c){var m=g(t.glplot.cameraParams,p.dataCoordinate);e=c.data;var x,b=r._fullData[e.index],_=p.index,w={xLabel:v("xaxis",p.traceCoordinate[0]),yLabel:v("yaxis",p.traceCoordinate[1]),zLabel:v("zaxis",p.traceCoordinate[2])},k=h.castHoverinfo(b,t.fullLayout,_),T=(k||"").split("+"),A=k&&"all"===k;b.hovertemplate||A||(-1===T.indexOf("x")&&(w.xLabel=void 0),-1===T.indexOf("y")&&(w.yLabel=void 0),-1===T.indexOf("z")&&(w.zLabel=void 0),-1===T.indexOf("text")&&(p.textLabel=void 0),-1===T.indexOf("name")&&(c.name=void 0));var M=[];"cone"===e.type||"streamtube"===e.type?(w.uLabel=v("xaxis",p.traceCoordinate[3]),(A||-1!==T.indexOf("u"))&&M.push("u: "+w.uLabel),w.vLabel=v("yaxis",p.traceCoordinate[4]),(A||-1!==T.indexOf("v"))&&M.push("v: "+w.vLabel),w.wLabel=v("zaxis",p.traceCoordinate[5]),(A||-1!==T.indexOf("w"))&&M.push("w: "+w.wLabel),w.normLabel=p.traceCoordinate[6].toPrecision(3),(A||-1!==T.indexOf("norm"))&&M.push("norm: "+w.normLabel),"streamtube"===e.type&&(w.divergenceLabel=p.traceCoordinate[7].toPrecision(3),(A||-1!==T.indexOf("divergence"))&&M.push("divergence: "+w.divergenceLabel)),p.textLabel&&M.push(p.textLabel),x=M.join("<br>")):"isosurface"===e.type||"volume"===e.type?(w.valueLabel=f.tickText(t.mockAxis,t.mockAxis.d2l(p.traceCoordinate[3]),"hover").text,M.push("value: "+w.valueLabel),p.textLabel&&M.push(p.textLabel),x=M.join("<br>")):x=p.textLabel;var S={x:p.traceCoordinate[0],y:p.traceCoordinate[1],z:p.traceCoordinate[2],data:b._input,fullData:b,curveNumber:b.index,pointNumber:_};h.appendArrayPointValue(S,b,_),e._module.eventData&&(S=b._module.eventData(S,p,b,{},_));var E={points:[S]};t.fullSceneLayout.hovermode&&h.loneHover({trace:b,x:(.5+.5*m[0]/m[3])*a,y:(.5-.5*m[1]/m[3])*o,xLabel:w.xLabel,yLabel:w.yLabel,zLabel:w.zLabel,text:x,name:c.name,color:h.castHoverOption(b,_,"bgcolor")||c.color,borderColor:h.castHoverOption(b,_,"bordercolor"),fontFamily:h.castHoverOption(b,_,"font.family"),fontSize:h.castHoverOption(b,_,"font.size"),fontColor:h.castHoverOption(b,_,"font.color"),nameLength:h.castHoverOption(b,_,"namelength"),textAlign:h.castHoverOption(b,_,"align"),hovertemplate:u.castOption(b,_,"hovertemplate"),hovertemplateLabels:u.extendFlat({},S,w),eventData:[S]},{container:n,gd:r}),p.buttons&&p.distance<5?r.emit("plotly_click",E):r.emit("plotly_hover",E),s=E}else h.loneUnhover(n),r.emit("plotly_unhover",s);t.drawAnnotations(t)}.bind(null,t),t.traces={},t.make4thDimension(),!0}function b(t,e){var r=document.createElement("div"),n=t.container;this.graphDiv=t.graphDiv;var i=document.createElementNS("http://www.w3.org/2000/svg","svg");i.style.position="absolute",i.style.top=i.style.left="0px",i.style.width=i.style.height="100%",i.style["z-index"]=20,i.style["pointer-events"]="none",r.appendChild(i),this.svgContainer=i,r.id=t.id,r.style.position="absolute",r.style.top=r.style.left="0px",r.style.width=r.style.height="100%",n.appendChild(r),this.fullLayout=e,this.id=t.id||"scene",this.fullSceneLayout=e[this.id],this.plotArgs=[[],{},{}],this.axesOptions=v(e,e[this.id]),this.spikeOptions=m(e[this.id]),this.container=r,this.staticMode=!!t.staticPlot,this.pixelRatio=this.pixelRatio||t.plotGlPixelRatio||2,this.dataScale=[1,1,1],this.contourLevels=[[],[],[]],this.convertAnnotations=c.getComponentMethod("annotations3d","convert"),this.drawAnnotations=c.getComponentMethod("annotations3d","draw"),x(this,this.pixelRatio)}var _=b.prototype;_.initializeGLCamera=function(){var t=this.fullSceneLayout.camera,e="orthographic"===t.projection.type;this.camera=a(this.container,{center:[t.center.x,t.center.y,t.center.z],eye:[t.eye.x,t.eye.y,t.eye.z],up:[t.up.x,t.up.y,t.up.z],_ortho:e,zoomMin:.01,zoomMax:100,mode:"orbit"})},_.recoverContext=function(){var t=this,e=this.glplot.gl,r=this.glplot.canvas,n=this.glplot.camera,i=this.glplot.pixelRatio;this.glplot.dispose(),requestAnimationFrame(function a(){e.isContextLost()?requestAnimationFrame(a):x(t,n,i,r)?t.plot.apply(t,t.plotArgs):u.error("Catastrophic and unrecoverable WebGL error. Context lost.")})};var w=["xaxis","yaxis","zaxis"];function k(t,e,r){for(var n=t.fullSceneLayout,i=0;i<3;i++){var a=w[i],o=a.charAt(0),s=n[a],l=e[o],c=e[o+"calendar"],f=e["_"+o+"length"];if(u.isArrayOrTypedArray(l))for(var h,p=0;p<(f||l.length);p++)if(u.isArrayOrTypedArray(l[p]))for(var d=0;d<l[p].length;++d)h=s.d2l(l[p][d],0,c),!isNaN(h)&&isFinite(h)&&(r[0][i]=Math.min(r[0][i],h),r[1][i]=Math.max(r[1][i],h));else h=s.d2l(l[p],0,c),!isNaN(h)&&isFinite(h)&&(r[0][i]=Math.min(r[0][i],h),r[1][i]=Math.max(r[1][i],h));else r[0][i]=Math.min(r[0][i],0),r[1][i]=Math.max(r[1][i],f-1)}}function T(t){return{up:{x:t.up[0],y:t.up[1],z:t.up[2]},center:{x:t.center[0],y:t.center[1],z:t.center[2]},eye:{x:t.eye[0],y:t.eye[1],z:t.eye[2]},projection:{type:!0===t._ortho?"orthographic":"perspective"}}}_.plot=function(t,e,r){if(this.plotArgs=[t,e,r],!this.glplot.contextLost){var n,i,a,o,s,l,c=e[this.id],u=r[this.id];c.bgcolor?this.glplot.clearColor=p(c.bgcolor):this.glplot.clearColor=[0,0,0,0],this.glplot.snapToData=!0,this.fullLayout=e,this.fullSceneLayout=c,this.glplotLayout=c,this.axesOptions.merge(e,c),this.spikeOptions.merge(c),this.setCamera(c.camera),this.updateFx(c.dragmode,c.hovermode),this.camera.enableWheel=this.graphDiv._context._scrollZoom.gl3d,this.glplot.update({}),this.setConvert(s),t?Array.isArray(t)||(t=[t]):t=[];var f=[[1/0,1/0,1/0],[-1/0,-1/0,-1/0]];for(a=0;a<t.length;++a)!0===(n=t[a]).visible&&0!==n._length&&k(this,n,f);!function(t,e){for(var r=t.fullSceneLayout,n=r.annotations||[],i=0;i<3;i++)for(var a=w[i],o=a.charAt(0),s=r[a],l=0;l<n.length;l++){var c=n[l];if(c.visible){var u=s.r2l(c[o]);!isNaN(u)&&isFinite(u)&&(e[0][i]=Math.min(e[0][i],u),e[1][i]=Math.max(e[1][i],u))}}}(this,f);var h=[1,1,1];for(o=0;o<3;++o)f[1][o]===f[0][o]?h[o]=1:h[o]=1/(f[1][o]-f[0][o]);for(this.dataScale=h,this.convertAnnotations(this),a=0;a<t.length;++a)!0===(n=t[a]).visible&&0!==n._length&&((i=this.traces[n.uid])?i.data.type===n.type?i.update(n):(i.dispose(),i=n._module.plot(this,n),this.traces[n.uid]=i):(i=n._module.plot(this,n),this.traces[n.uid]=i),i.name=n.name);var d=Object.keys(this.traces);t:for(a=0;a<d.length;++a){for(o=0;o<t.length;++o)if(t[o].uid===d[a]&&!0===t[o].visible&&0!==t[o]._length)continue t;(i=this.traces[d[a]]).dispose(),delete this.traces[d[a]]}this.glplot.objects.sort(function(t,e){return t._trace.data.index-e._trace.data.index});var g=[[0,0,0],[0,0,0]],v=[],m={};for(a=0;a<3;++a){if((l=(s=c[w[a]]).type)in m?(m[l].acc*=h[a],m[l].count+=1):m[l]={acc:h[a],count:1},s.autorange){g[0][a]=1/0,g[1][a]=-1/0;var y=this.glplot.objects,x=this.fullSceneLayout.annotations||[],b=s._name.charAt(0);for(o=0;o<y.length;o++){var _=y[o],T=_.bounds,A=_._trace.data._pad||0;"ErrorBars"===_.constructor.name&&s._lowerLogErrorBound?g[0][a]=Math.min(g[0][a],s._lowerLogErrorBound):g[0][a]=Math.min(g[0][a],T[0][a]/h[a]-A),g[1][a]=Math.max(g[1][a],T[1][a]/h[a]+A)}for(o=0;o<x.length;o++){var M=x[o];if(M.visible){var S=s.r2l(M[b]);g[0][a]=Math.min(g[0][a],S),g[1][a]=Math.max(g[1][a],S)}}if("rangemode"in s&&"tozero"===s.rangemode&&(g[0][a]=Math.min(g[0][a],0),g[1][a]=Math.max(g[1][a],0)),g[0][a]>g[1][a])g[0][a]=-1,g[1][a]=1;else{var E=g[1][a]-g[0][a];g[0][a]-=E/32,g[1][a]+=E/32}if("reversed"===s.autorange){var C=g[0][a];g[0][a]=g[1][a],g[1][a]=C}}else{var L=s.range;g[0][a]=s.r2l(L[0]),g[1][a]=s.r2l(L[1])}g[0][a]===g[1][a]&&(g[0][a]-=1,g[1][a]+=1),v[a]=g[1][a]-g[0][a],this.glplot.bounds[0][a]=g[0][a]*h[a],this.glplot.bounds[1][a]=g[1][a]*h[a]}var z=[1,1,1];for(a=0;a<3;++a){var O=m[l=(s=c[w[a]]).type];z[a]=Math.pow(O.acc,1/O.count)/h[a]}var I;if("auto"===c.aspectmode)I=Math.max.apply(null,z)/Math.min.apply(null,z)<=4?z:[1,1,1];else if("cube"===c.aspectmode)I=[1,1,1];else if("data"===c.aspectmode)I=z;else{if("manual"!==c.aspectmode)throw new Error("scene.js aspectRatio was not one of the enumerated types");var D=c.aspectratio;I=[D.x,D.y,D.z]}c.aspectratio.x=u.aspectratio.x=I[0],c.aspectratio.y=u.aspectratio.y=I[1],c.aspectratio.z=u.aspectratio.z=I[2],this.glplot.aspect=I;var P=c.domain||null,R=e._size||null;if(P&&R){var F=this.container.style;F.position="absolute",F.left=R.l+P.x[0]*R.w+"px",F.top=R.t+(1-P.y[1])*R.h+"px",F.width=R.w*(P.x[1]-P.x[0])+"px",F.height=R.h*(P.y[1]-P.y[0])+"px"}this.glplot.redraw()}},_.destroy=function(){this.glplot&&(this.camera.mouseListener.enabled=!1,this.container.removeEventListener("wheel",this.camera.wheelListener),this.camera=this.glplot.camera=null,this.glplot.dispose(),this.container.parentNode.removeChild(this.container),this.glplot=null)},_.getCamera=function(){return 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a=e[r[i]],s=a.domain,l=a._subplot,c=l.toImage("png");e._glimages.append("svg:image").attr({xmlns:o.svg,"xlink:href":c,x:n.l+n.w*s.x[0],y:n.t+n.h*(1-s.y[1]),width:n.w*(s.x[1]-s.x[0]),height:n.h*(s.y[1]-s.y[0]),preserveAspectRatio:"none"}),l.destroy()}},r.updateFx=function(t){for(var e=t._fullLayout,r=e._subplots.mapbox,n=0;n<r.length;n++){e[r[n]]._subplot.updateFx(e)}}},{"../../constants/xmlns_namespaces":681,"../../lib":703,"../../plots/get_data":786,"./constants":804,"./layout_attributes":808,"./layout_defaults":809,"./mapbox":810,"mapbox-gl":421}],807:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("./convert_text_opts");function a(t,e){this.mapbox=t,this.map=t.map,this.uid=t.uid+"-layer"+e,this.idSource=this.uid+"-source",this.idLayer=this.uid+"-layer",this.sourceType=null,this.source=null,this.layerType=null,this.below=null,this.visible=!1}var o=a.prototype;function s(t){var e=t.source;return t.visible&&(n.isPlainObject(e)||"string"==typeof e&&e.length>0)}function l(t){var e={},r={};switch(t.type){case"circle":n.extendFlat(r,{"circle-radius":t.circle.radius,"circle-color":t.color,"circle-opacity":t.opacity});break;case"line":n.extendFlat(r,{"line-width":t.line.width,"line-color":t.color,"line-opacity":t.opacity,"line-dasharray":t.line.dash});break;case"fill":n.extendFlat(r,{"fill-color":t.color,"fill-outline-color":t.fill.outlinecolor,"fill-opacity":t.opacity});break;case"symbol":var a=t.symbol,o=i(a.textposition,a.iconsize);n.extendFlat(e,{"icon-image":a.icon+"-15","icon-size":a.iconsize/10,"text-field":a.text,"text-size":a.textfont.size,"text-anchor":o.anchor,"text-offset":o.offset,"symbol-placement":a.placement}),n.extendFlat(r,{"icon-color":t.color,"text-color":a.textfont.color,"text-opacity":t.opacity})}return{layout:e,paint:r}}o.update=function(t){this.visible?this.needsNewSource(t)?(this.removeLayer(),this.updateSource(t),this.updateLayer(t)):this.needsNewLayer(t)?this.updateLayer(t):this.updateStyle(t):(this.updateSource(t),this.updateLayer(t)),this.visible=s(t)},o.needsNewSource=function(t){return this.sourceType!==t.sourcetype||this.source!==t.source||this.layerType!==t.type},o.needsNewLayer=function(t){return this.layerType!==t.type||this.below!==t.below},o.updateSource=function(t){var e=this.map;if(e.getSource(this.idSource)&&e.removeSource(this.idSource),this.sourceType=t.sourcetype,this.source=t.source,s(t)){var r=function(t){var e,r=t.sourcetype,n=t.source,i={type:r};"geojson"===r?e="data":"vector"===r&&(e="string"==typeof n?"url":"tiles");return i[e]=n,i}(t);e.addSource(this.idSource,r)}},o.updateLayer=function(t){var e=this.map,r=l(t);this.removeLayer(),this.layerType=t.type,s(t)&&e.addLayer({id:this.idLayer,source:this.idSource,"source-layer":t.sourcelayer||"",type:t.type,minzoom:t.minzoom,maxzoom:t.maxzoom,layout:r.layout,paint:r.paint},t.below)},o.updateStyle=function(t){if(s(t)){var e=l(t);this.mapbox.setOptions(this.idLayer,"setLayoutProperty",e.layout),this.mapbox.setOptions(this.idLayer,"setPaintProperty",e.paint)}},o.removeLayer=function(){var t=this.map;t.getLayer(this.idLayer)&&t.removeLayer(this.idLayer)},o.dispose=function(){var t=this.map;t.removeLayer(this.idLayer),t.removeSource(this.idSource)},e.exports=function(t,e,r){var n=new a(t,e);return n.update(r),n}},{"../../lib":703,"./convert_text_opts":805}],808:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("../../components/color").defaultLine,a=t("../domain").attributes,o=t("../font_attributes"),s=t("../../traces/scatter/attributes").textposition,l=t("../../plot_api/edit_types").overrideAll,c=t("../../plot_api/plot_template").templatedArray,u=o({});u.family.dflt="Open Sans Regular, Arial Unicode MS 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a=r("type");r("below"),r("color"),r("opacity"),r("minzoom"),r("maxzoom"),"circle"===a&&r("circle.radius"),"line"===a&&(r("line.width"),r("line.dash")),"fill"===a&&r("fill.outlinecolor"),"symbol"===a&&(r("symbol.icon"),r("symbol.iconsize"),r("symbol.text"),n.coerceFont(r,"symbol.textfont"),r("symbol.textposition"),r("symbol.placement"))}}e.exports=function(t,e,r){i(t,e,r,{type:"mapbox",attributes:o,handleDefaults:s,partition:"y",accessToken:e._mapboxAccessToken})}},{"../../lib":703,"../array_container_defaults":747,"../subplot_defaults":826,"./layout_attributes":808}],810:[function(t,e,r){"use strict";var n=t("mapbox-gl"),i=t("../../components/fx"),a=t("../../lib"),o=t("../../registry"),s=t("../../components/dragelement"),l=t("../cartesian/select").prepSelect,c=t("../cartesian/select").selectOnClick,u=t("./constants"),f=t("./layout_attributes"),h=t("./layers");function p(t){this.id=t.id,this.gd=t.gd,this.container=t.container,this.isStatic=t.staticPlot;var 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y=h.select(".legend-marks").selectAll("path.legend-mark").data(o);y.enter().append("path").classed("legend-mark",!0),y.attr({transform:function(t,e){return"translate("+[c/2,v(e)+c/2]+")"},d:function(t,e){var r,i,a,o=t.symbol;return a=3*(i=c),"line"===(r=o)?"M"+[[-i/2,-i/12],[i/2,-i/12],[i/2,i/12],[-i/2,i/12]]+"Z":-1!=n.svg.symbolTypes.indexOf(r)?n.svg.symbol().type(r).size(a)():n.svg.symbol().type("square").size(a)()},fill:function(t,e){return g(e)}}),y.exit().remove()}var x=n.svg.axis().scale(v).orient("right"),b=h.select("g.legend-axis").attr({transform:"translate("+[u?e.colorBandWidth:c,c/2]+")"}).call(x);return b.selectAll(".domain").style({fill:"none",stroke:"none"}),b.selectAll("line").style({fill:"none",stroke:u?e.textColor:"none"}),b.selectAll("text").style({fill:e.textColor,"font-size":e.fontSize}).text(function(t,e){return o[e].name}),r}return r.config=function(e){return 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h=a.padding,p=e.node().getBBox(),d={fill:a.color,stroke:s,"stroke-width":"2px"},g=p.width+2*h+l,v=p.height+2*h;return r.attr({d:"M"+[[l,-v/2],[l,-v/4],[a.hasTick?0:l,0],[l,v/4],[l,v/2],[g,v/2],[g,-v/2]].join("L")+"Z"}).style(d),t.attr({transform:"translate("+[l,-v/2+2*h]+")"}),t.style({display:"block"}),c},c.move=function(e){if(t)return t.attr({transform:"translate("+[e[0],e[1]]+")"}).style({display:"block"}),c},c.hide=function(){if(t)return t.style({display:"none"}),c},c.show=function(){if(t)return t.style({display:"block"}),c},c.config=function(t){return i(a,t),c},c},o.tooltipPanel.uid=1,o.adapter={},o.adapter.plotly=function(){var t={convert:function(t,e){var r={};if(t.data&&(r.data=t.data.map(function(t,r){var n=i({},t);return[[n,["marker","color"],["color"]],[n,["marker","opacity"],["opacity"]],[n,["marker","line","color"],["strokeColor"]],[n,["marker","line","dash"],["strokeDash"]],[n,["marker","line","width"],["strokeSize"]],[n,["marker","symbol"],["dotType"]],[n,["marker","size"],["dotSize"]],[n,["marker","barWidth"],["barWidth"]],[n,["line","interpolation"],["lineInterpolation"]],[n,["showlegend"],["visibleInLegend"]]].forEach(function(t,r){o.util.translator.apply(null,t.concat(e))}),e||delete n.marker,e&&delete n.groupId,e?("LinePlot"===n.geometry?(n.type="scatter",!0===n.dotVisible?(delete n.dotVisible,n.mode="lines+markers"):n.mode="lines"):"DotPlot"===n.geometry?(n.type="scatter",n.mode="markers"):"AreaChart"===n.geometry?n.type="area":"BarChart"===n.geometry&&(n.type="bar"),delete n.geometry):("scatter"===n.type?"lines"===n.mode?n.geometry="LinePlot":"markers"===n.mode?n.geometry="DotPlot":"lines+markers"===n.mode&&(n.geometry="LinePlot",n.dotVisible=!0):"area"===n.type?n.geometry="AreaChart":"bar"===n.type&&(n.geometry="BarChart"),delete n.mode,delete n.type),n}),!e&&t.layout&&"stack"===t.layout.barmode)){var a=o.util.duplicates(r.data.map(function(t,e){return t.geometry}));r.data.forEach(function(t,e){var n=a.indexOf(t.geometry);-1!=n&&(r.data[e].groupId=n)})}if(t.layout){var s=i({},t.layout);if([[s,["plot_bgcolor"],["backgroundColor"]],[s,["showlegend"],["showLegend"]],[s,["radialaxis"],["radialAxis"]],[s,["angularaxis"],["angularAxis"]],[s.angularaxis,["showline"],["gridLinesVisible"]],[s.angularaxis,["showticklabels"],["labelsVisible"]],[s.angularaxis,["nticks"],["ticksCount"]],[s.angularaxis,["tickorientation"],["tickOrientation"]],[s.angularaxis,["ticksuffix"],["ticksSuffix"]],[s.angularaxis,["range"],["domain"]],[s.angularaxis,["endpadding"],["endPadding"]],[s.radialaxis,["showline"],["gridLinesVisible"]],[s.radialaxis,["tickorientation"],["tickOrientation"]],[s.radialaxis,["ticksuffix"],["ticksSuffix"]],[s.radialaxis,["range"],["domain"]],[s.angularAxis,["showline"],["gridLinesVisible"]],[s.angularAxis,["showticklabels"],["labelsVisible"]],[s.angularAxis,["nticks"],["ticksCount"]],[s.angularAxis,["tickorientation"],["tickOrientation"]],[s.angularAxis,["ticksuffix"],["ticksSuffix"]],[s.angularAxis,["range"],["domain"]],[s.angularAxis,["endpadding"],["endPadding"]],[s.radialAxis,["showline"],["gridLinesVisible"]],[s.radialAxis,["tickorientation"],["tickOrientation"]],[s.radialAxis,["ticksuffix"],["ticksSuffix"]],[s.radialAxis,["range"],["domain"]],[s.font,["outlinecolor"],["outlineColor"]],[s.legend,["traceorder"],["reverseOrder"]],[s,["labeloffset"],["labelOffset"]],[s,["defaultcolorrange"],["defaultColorRange"]]].forEach(function(t,r){o.util.translator.apply(null,t.concat(e))}),e?("undefined"!=typeof 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r=t._fullLayout,n="clip"+r._uid+e;this.clipIds.forTraces=n+"-for-traces",this.clipPaths.forTraces=r._clips.append("clipPath").attr("id",this.clipIds.forTraces),this.clipPaths.forTraces.append("path"),this.framework=r._polarlayer.append("g").attr("class",e),this.radialTickLayout=null,this.angularTickLayout=null}var O=z.prototype;function I(t){var e=t.ticks+String(t.ticklen)+String(t.showticklabels);return"side"in t&&(e+=t.side),e}function D(t,e){return e[o.findIndexOfMin(e,function(e){return o.angleDist(t,e)})]}function P(t,e,r){return e?(t.attr("display",null),t.attr(r)):t&&t.attr("display","none"),t}function R(t,e){return"translate("+t+","+e+")"}function F(t){return"rotate("+t+")"}e.exports=function(t,e){return new z(t,e)},O.plot=function(t,e){var r=e[this.id];this._hasClipOnAxisFalse=!1;for(var 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e=r[t]=n.select(this);switch(t){case"frontplot":e.append("g").classed("barlayer",!0),e.append("g").classed("scatterlayer",!0);break;case"backplot":e.append("g").classed("maplayer",!0);break;case"plotbg":r.bg=e.append("path");break;case"radial-grid":case"angular-grid":e.style("fill","none");break;case"radial-line":e.append("line").style("fill","none");break;case"angular-line":e.append("path").style("fill","none")}}),f.order()},O.updateLayout=function(t,e){var r=this.layers,n=t._size,i=e.radialaxis,a=e.angularaxis,o=e.domain.x,c=e.domain.y;this.xOffset=n.l+n.w*o[0],this.yOffset=n.t+n.h*(1-c[1]);var u=this.xLength=n.w*(o[1]-o[0]),f=this.yLength=n.h*(c[1]-c[0]),h=e.sector;this.sectorInRad=h.map(C);var p,d,g,v,m,y=this.sectorBBox=function(t){var e,r,n,i,a=t[0],o=t[1]-a,s=E(a,360),l=s+o,c=Math.cos(C(s)),u=Math.sin(C(s)),f=Math.cos(C(l)),h=Math.sin(C(l));i=s<=90&&l>=90||s>90&&l>=450?1:u<=0&&h<=0?0:Math.max(u,h);e=s<=180&&l>=180||s>180&&l>=540?-1:c>=0&&f>=0?0:Math.min(c,f);r=s<=270&&l>=270||s>270&&l>=630?-1:u>=0&&h>=0?0:Math.min(u,h);n=l>=360?1:c<=0&&f<=0?0:Math.max(c,f);return[e,r,n,i]}(h),x=y[2]-y[0],b=y[3]-y[1],_=f/u,w=Math.abs(b/x);_>w?(p=u,m=(f-(d=u*w))/n.h/2,g=[o[0],o[1]],v=[c[0]+m,c[1]-m]):(d=f,m=(u-(p=f/w))/n.w/2,g=[o[0]+m,o[1]-m],v=[c[0],c[1]]),this.xLength2=p,this.yLength2=d,this.xDomain2=g,this.yDomain2=v;var k=this.xOffset2=n.l+n.w*g[0],T=this.yOffset2=n.t+n.h*(1-v[1]),A=this.radius=p/x,M=this.innerRadius=e.hole*A,S=this.cx=k-A*y[0],L=this.cy=T+A*y[3],z=this.cxx=S-k,O=this.cyy=L-T;this.radialAxis=this.mockAxis(t,e,i,{_id:"x",side:{counterclockwise:"top",clockwise:"bottom"}[i.side],domain:[M/n.w,A/n.w]}),this.angularAxis=this.mockAxis(t,e,a,{side:"right",domain:[0,Math.PI],autorange:!1}),this.doAutoRange(t,e),this.updateAngularAxis(t,e),this.updateRadialAxis(t,e),this.updateRadialAxisTitle(t,e),this.xaxis=this.mockCartesianAxis(t,e,{_id:"x",domain:g}),this.yaxis=this.mockCartesianAxis(t,e,{_id:"y",domain:v});var I=this.pathSubplot();this.clipPaths.forTraces.select("path").attr("d",I).attr("transform",R(z,O)),r.frontplot.attr("transform",R(k,T)).call(l.setClipUrl,this._hasClipOnAxisFalse?null:this.clipIds.forTraces,this.gd),r.bg.attr("d",I).attr("transform",R(S,L)).call(s.fill,e.bgcolor)},O.mockAxis=function(t,e,r,n){var i=o.extendFlat({anchor:"free",position:0},r,n);return 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v=function(t){return"translate("+(d.l2p(t.x)+l)+",0)"},m=I(h);if(r.radialTickLayout!==m&&(i["radial-axis"].selectAll(".xtick").remove(),r.radialTickLayout=m),g){d.setScale();var y=u.calcTicks(d),x=u.clipEnds(d,y),b=u.getTickSigns(d)[2];u.drawTicks(n,d,{vals:y,layer:i["radial-axis"],path:u.makeTickPath(d,0,b),transFn:v,crisp:!1}),u.drawGrid(n,d,{vals:x,layer:i["radial-grid"],path:function(t){return r.pathArc(d.r2p(t.x)+l)},transFn:o.noop,crisp:!1}),u.drawLabels(n,d,{vals:y,layer:i["radial-axis"],transFn:v,labelFns:u.makeLabelFns(d,0)})}var _=r.radialAxisAngle=r.vangles?L(D(C(h.angle),r.vangles)):h.angle,w=R(c,f),k=w+F(-_);P(i["radial-axis"],g&&(h.showticklabels||h.ticks),{transform:k}),P(i["radial-grid"],g&&h.showgrid,{transform:w}),P(i["radial-line"].select("line"),g&&h.showline,{x1:l,y1:0,x2:a,y2:0,transform:k}).attr("stroke-width",h.linewidth).call(s.stroke,h.linecolor)},O.updateRadialAxisTitle=function(t,e,r){var n=this.gd,i=this.radius,a=this.cx,o=this.cy,s=e.radialaxis,c=this.id+"title",u=void 0!==r?r:this.radialAxisAngle,f=C(u),h=Math.cos(f),p=Math.sin(f),d=0;if(s.title){var g=l.bBox(this.layers["radial-axis"].node()).height,v=s.title.font.size;d="counterclockwise"===s.side?-g-.4*v:g+.8*v}this.layers["radial-axis-title"]=m.draw(n,c,{propContainer:s,propName:this.id+".radialaxis.title",placeholder:S(n,"Click to enter radial axis title"),attributes:{x:a+i/2*h+d*p,y:o-i/2*p+d*h,"text-anchor":"middle"},transform:{rotate:-u}})},O.updateAngularAxis=function(t,e){var r=this,n=r.gd,i=r.layers,a=r.radius,l=r.innerRadius,c=r.cx,f=r.cy,h=e.angularaxis,p=r.angularAxis;r.fillViewInitialKey("angularaxis.rotation",h.rotation),p.setGeometry(),p.setScale();var d=function(t){return p.t2g(t.x)};"linear"===p.type&&"radians"===p.thetaunit&&(p.tick0=L(p.tick0),p.dtick=L(p.dtick));var g=function(t){return R(c+a*Math.cos(t),f-a*Math.sin(t))},v=u.makeLabelFns(p,0).labelStandoff,m={xFn:function(t){var e=d(t);return Math.cos(e)*v},yFn:function(t){var e=d(t),r=Math.sin(e)>0?.2:1;return-Math.sin(e)*(v+t.fontSize*r)+Math.abs(Math.cos(e))*(t.fontSize*T)},anchorFn:function(t){var e=d(t),r=Math.cos(e);return Math.abs(r)<.1?"middle":r>0?"start":"end"},heightFn:function(t,e,r){var n=d(t);return-.5*(1+Math.sin(n))*r}},y=I(h);r.angularTickLayout!==y&&(i["angular-axis"].selectAll("."+p._id+"tick").remove(),r.angularTickLayout=y);var x,b=u.calcTicks(p);if("linear"===e.gridshape?(x=b.map(d),o.angleDelta(x[0],x[1])<0&&(x=x.slice().reverse())):x=null,r.vangles=x,"category"===p.type&&(b=b.filter(function(t){return o.isAngleInsideSector(d(t),r.sectorInRad)})),p.visible){var _="inside"===p.ticks?-1:1,w=(p.linewidth||1)/2;u.drawTicks(n,p,{vals:b,layer:i["angular-axis"],path:"M"+_*w+",0h"+_*p.ticklen,transFn:function(t){var e=d(t);return g(e)+F(-L(e))},crisp:!1}),u.drawGrid(n,p,{vals:b,layer:i["angular-grid"],path:function(t){var e=d(t),r=Math.cos(e),n=Math.sin(e);return"M"+[c+l*r,f-l*n]+"L"+[c+a*r,f-a*n]},transFn:o.noop,crisp:!1}),u.drawLabels(n,p,{vals:b,layer:i["angular-axis"],repositionOnUpdate:!0,transFn:function(t){return g(d(t))},labelFns:m})}P(i["angular-line"].select("path"),h.showline,{d:r.pathSubplot(),transform:R(c,f)}).attr("stroke-width",h.linewidth).call(s.stroke,h.linecolor)},O.updateFx=function(t,e){this.gd._context.staticPlot||(this.updateAngularDrag(t),this.updateRadialDrag(t,e,0),this.updateRadialDrag(t,e,1),this.updateMainDrag(t))},O.updateMainDrag=function(t){var e=this,r=e.gd,o=e.layers,s=t._zoomlayer,l=A.MINZOOM,c=A.OFFEDGE,u=e.radius,f=e.innerRadius,h=e.cx,p=e.cy,m=e.cxx,_=e.cyy,w=e.sectorInRad,k=e.vangles,T=e.radialAxis,S=M.clampTiny,E=M.findXYatLength,C=M.findEnclosingVertexAngles,L=A.cornerHalfWidth,z=A.cornerLen/2,O=d.makeDragger(o,"path","maindrag","crosshair");n.select(O).attr("d",e.pathSubplot()).attr("transform",R(h,p));var I,D,P,F,B,N,j,V,U,H={element:O,gd:r,subplot:e.id,plotinfo:{id:e.id,xaxis:e.xaxis,yaxis:e.yaxis},xaxes:[e.xaxis],yaxes:[e.yaxis]};function q(t,e){return Math.sqrt(t*t+e*e)}function G(t,e){return q(t-m,e-_)}function Y(t,e){return Math.atan2(_-e,t-m)}function W(t,e){return[t*Math.cos(e),t*Math.sin(-e)]}function X(t,r){if(0===t)return e.pathSector(2*L);var n=z/t,i=r-n,a=r+n,o=Math.max(0,Math.min(t,u)),s=o-L,l=o+L;return"M"+W(s,i)+"A"+[s,s]+" 0,0,0 "+W(s,a)+"L"+W(l,a)+"A"+[l,l]+" 0,0,1 "+W(l,i)+"Z"}function Z(t,r,n){if(0===t)return e.pathSector(2*L);var i,a,o=W(t,r),s=W(t,n),l=S((o[0]+s[0])/2),c=S((o[1]+s[1])/2);if(l&&c){var u=c/l,f=-1/u,h=E(L,u,l,c);i=E(z,f,h[0][0],h[0][1]),a=E(z,f,h[1][0],h[1][1])}else{var p,d;c?(p=z,d=L):(p=L,d=z),i=[[l-p,c-d],[l+p,c-d]],a=[[l-p,c+d],[l+p,c+d]]}return"M"+i.join("L")+"L"+a.reverse().join("L")+"Z"}function $(t,e){return 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i=r._fullLayout.clickmode;if(d.removeZoombox(r),2===t){var o={};for(var s in e.viewInitial)o[e.id+"."+s]=e.viewInitial[s];r.emit("plotly_doubleclick",null),a.call("_guiRelayout",r,o)}i.indexOf("select")>-1&&1===t&&x(n,r,[e.xaxis],[e.yaxis],e.id,H),i.indexOf("event")>-1&&v.click(r,n,e.id)}H.prepFn=function(t,n,a){var o=r._fullLayout.dragmode,l=O.getBoundingClientRect();if(I=n-l.left,D=a-l.top,k){var c=M.findPolygonOffset(u,w[0],w[1],k);I+=m+c[0],D+=_+c[1]}switch(o){case"zoom":H.moveFn=k?tt:K,H.clickFn=nt,H.doneFn=et,function(){P=null,F=null,B=e.pathSubplot(),N=!1;var t=r._fullLayout[e.id];j=i(t.bgcolor).getLuminance(),(V=d.makeZoombox(s,j,h,p,B)).attr("fill-rule","evenodd"),U=d.makeCorners(s,h,p),b(r)}();break;case"select":case"lasso":y(t,n,a,H,o)}},O.onmousemove=function(t){v.hover(r,t,e.id),r._fullLayout._lasthover=O,r._fullLayout._hoversubplot=e.id},O.onmouseout=function(t){r._dragging||g.unhover(r,t)},g.init(H)},O.updateRadialDrag=function(t,e,r){var i=this,s=i.gd,l=i.layers,c=i.radius,u=i.innerRadius,f=i.cx,h=i.cy,p=i.radialAxis,v=A.radialDragBoxSize,m=v/2;if(p.visible){var y,x,_,T=C(i.radialAxisAngle),M=p._rl,S=M[0],E=M[1],z=M[r],O=.75*(M[1]-M[0])/(1-e.hole)/c;r?(y=f+(c+m)*Math.cos(T),x=h-(c+m)*Math.sin(T),_="radialdrag"):(y=f+(u-m)*Math.cos(T),x=h-(u-m)*Math.sin(T),_="radialdrag-inner");var I,B,N,j=d.makeRectDragger(l,_,"crosshair",-m,-m,v,v),V={element:j,gd:s};P(n.select(j),p.visible&&u<c,{transform:R(y,x)}),V.prepFn=function(){I=null,B=null,N=null,V.moveFn=U,V.doneFn=H,b(s)},V.clampFn=function(t,e){return Math.sqrt(t*t+e*e)<A.MINDRAG&&(t=0,e=0),[t,e]},g.init(V)}function U(t,e){if(I)I(t,e);else{var n=[t,-e],a=[Math.cos(T),Math.sin(T)],l=Math.abs(o.dot(n,a)/Math.sqrt(o.dot(n,n)));isNaN(l)||(I=l<.5?q:G)}var c={};!function(t){null!==B?t[i.id+".radialaxis.angle"]=B:null!==N&&(t[i.id+".radialaxis.range["+r+"]"]=N)}(c),s.emit("plotly_relayouting",c)}function H(){null!==B?a.call("_guiRelayout",s,i.id+".radialaxis.angle",B):null!==N&&a.call("_guiRelayout",s,i.id+".radialaxis.range["+r+"]",N)}function q(t,e){if(0!==r){var n=y+t,a=x+e;B=Math.atan2(h-a,n-f),i.vangles&&(B=D(B,i.vangles)),B=L(B);var o=R(f,h)+F(-B);l["radial-axis"].attr("transform",o),l["radial-line"].select("line").attr("transform",o);var s=i.gd._fullLayout,c=s[i.id];i.updateRadialAxisTitle(s,c,B)}}function G(t,e){var n=o.dot([t,-e],[Math.cos(T),Math.sin(T)]);if(N=z-O*n,O>0==(r?N>S:N<E)){var l=s._fullLayout,c=l[i.id];p.range[r]=N,p._rl[r]=N,i.updateRadialAxis(l,c),i.xaxis.setRange(),i.xaxis.setScale(),i.yaxis.setRange(),i.yaxis.setScale();var u=!1;for(var f in i.traceHash){var h=i.traceHash[f],d=o.filterVisible(h);h[0][0].trace._module.plot(s,i,d,c),a.traceIs(f,"gl")&&d.length&&(u=!0)}u&&(w(s),k(s))}else N=null}},O.updateAngularDrag=function(t){var e=this,r=e.gd,i=e.layers,s=e.radius,c=e.angularAxis,u=e.cx,f=e.cy,h=e.cxx,p=e.cyy,v=A.angularDragBoxSize,m=d.makeDragger(i,"path","angulardrag","move"),y={element:m,gd:r};function x(t,e){return Math.atan2(p+v-e,t-h-v)}n.select(m).attr("d",e.pathAnnulus(s,s+v)).attr("transform",R(u,f)).call(_,"move");var T,M,S,E,C,z,O=i.frontplot.select(".scatterlayer").selectAll(".trace"),I=O.selectAll(".point"),D=O.selectAll(".textpoint");function P(t,s){var d=e.gd._fullLayout,g=d[e.id],v=x(T+t,M+s),m=L(v-z);if(E=S+m,i.frontplot.attr("transform",R(e.xOffset2,e.yOffset2)+F([-m,h,p])),e.vangles){C=e.radialAxisAngle+m;var y=R(u,f)+F(-m),b=R(u,f)+F(-C);i.bg.attr("transform",y),i["radial-grid"].attr("transform",y),i["radial-axis"].attr("transform",b),i["radial-line"].select("line").attr("transform",b),e.updateRadialAxisTitle(d,g,C)}else e.clipPaths.forTraces.select("path").attr("transform",R(h,p)+F(m));I.each(function(){var 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m={positions:h,cells:n,lightPosition:[t.lightposition.x,t.lightposition.y,t.lightposition.z],ambient:t.lighting.ambient,diffuse:t.lighting.diffuse,specular:t.lighting.specular,roughness:t.lighting.roughness,fresnel:t.lighting.fresnel,vertexNormalsEpsilon:t.lighting.vertexnormalsepsilon,faceNormalsEpsilon:t.lighting.facenormalsepsilon,opacity:t.opacity,contourEnable:t.contour.show,contourColor:l(t.contour.color).slice(0,3),contourWidth:t.contour.width,useFacetNormals:t.flatshading};if(t.intensity){var y=c(t);this.color="#fff",m.vertexIntensity=t.intensity,m.vertexIntensityBounds=[y.min,y.max],m.colormap=s(t)}else t.vertexcolor?(this.color=t.vertexcolor[0],m.vertexColors=p(t.vertexcolor)):t.facecolor?(this.color=t.facecolor[0],m.cellColors=p(t.facecolor)):(this.color=t.color,m.meshColor=l(t.color));this.mesh.update(m)},h.dispose=function(){this.scene.glplot.remove(this.mesh),this.mesh.dispose()},e.exports=function(t,e){var r=t.glplot.gl,i=n({gl:r}),a=new f(t,i,e.uid);return 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n=t("../../lib/extend").extendFlat,i=t("../../plots/attributes"),a=t("../../plots/font_attributes"),o=t("../../components/colorscale/attributes"),s=t("../../components/fx/hovertemplate_attributes"),l=t("../../plots/domain").attributes,c=n({editType:"calc"},o("line",{editTypeOverride:"calc"}),{shape:{valType:"enumerated",values:["linear","hspline"],dflt:"linear",editType:"plot"},hovertemplate:s({editType:"plot",arrayOk:!1},{keys:["count","probability"]})});e.exports={domain:l({name:"parcats",trace:!0,editType:"calc"}),hoverinfo:n({},i.hoverinfo,{flags:["count","probability"],editType:"plot",arrayOk:!1}),hoveron:{valType:"enumerated",values:["category","color","dimension"],dflt:"category",editType:"plot"},hovertemplate:s({editType:"plot",arrayOk:!1},{keys:["count","probability","category","categorycount","colorcount","bandcolorcount"]}),arrangement:{valType:"enumerated",values:["perpendicular","freeform","fixed"],dflt:"perpendicular",editType:"plot"},bundlecolors:{valType:"boolean",dflt:!0,editType:"plot"},sortpaths:{valType:"enumerated",values:["forward","backward"],dflt:"forward",editType:"plot"},labelfont:a({editType:"calc"}),tickfont:a({editType:"calc"}),dimensions:{_isLinkedToArray:"dimension",label:{valType:"string",editType:"calc"},categoryorder:{valType:"enumerated",values:["trace","category 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t.displayInd}),o=t.initialDragDimensionDisplayInds.some(function(t,e){return t!==a[e]});o&&a.forEach(function(r,n){var i=t.parcatsViewModel.model.dimensions[n].containerInd;e["dimensions["+i+"].displayindex"]=r});var s=!1;if(null!==t.dragCategoryDisplayInd){var l=t.model.categories.map(function(t){return t.displayInd});if(s=t.initialDragCategoryDisplayInds.some(function(t,e){return t!==l[e]})){var c=t.model.categories.slice().sort(function(t,e){return t.displayInd-e.displayInd}),u=c.map(function(t){return t.categoryValue}),f=c.map(function(t){return 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z(t){for(var e,r=t.graphDiv._fullData,n=0;n<r.length;n++)if(t.key===r[n].uid){e=n;break}return e}function O(t,e){var r;void 0===e&&(e=!1),t.pathSelection.data(function(t){return t.paths},f),(r=t.pathSelection,e?r.transition():r).attr("d",function(t){return t.svgD})}function I(t,e){function r(t){return e?t.transition():t}void 0===e&&(e=!1),t.dimensionSelection.data(function(t){return t.dimensions},f);var i=t.dimensionSelection.selectAll("g.category").data(function(t){return t.categories},f);r(t.dimensionSelection).attr("transform",function(t){return"translate("+t.x+", 0)"}),r(i).attr("transform",function(t){return"translate(0, "+t.y+")"}),i.select(".dimlabel").text(function(t,e){return 0===e?t.parcatsViewModel.model.dimensions[t.model.dimensionInd].dimensionLabel:null}),i.select(".catlabel").attr("text-anchor",function(t){return h(t)?"start":"end"}).attr("x",function(t){return h(t)?t.width+5:-5}).each(function(t){var e,r;h(t)?(e=t.width+5,r="start"):(e=-5,r="end"),n.select(this).selectAll("tspan").attr("x",e).attr("text-anchor",r)});var a=i.selectAll("rect.bandrect").data(function(t){return t.bands},f),s=a.enter().append("rect").attr("class","bandrect").attr("cursor","move").attr("stroke-opacity",0).attr("fill",function(t){return t.color}).attr("fill-opacity",0);a.attr("fill",function(t){return t.color}).attr("width",function(t){return t.width}).attr("height",function(t){return t.height}).attr("y",function(t){return t.y}),_(s),a.each(function(){o.raiseToTop(this)}),a.exit().remove()}function D(t,e,r,i,a){var o,s,l=[],c=[];for(s=0;s<r.length-1;s++)o=n.interpolateNumber(r[s]+t[s],t[s+1]),l.push(o(a)),c.push(o(1-a));var u="M "+t[0]+","+e[0];for(u+="l"+r[0]+",0 ",s=1;s<r.length;s++)u+="C"+l[s-1]+","+e[s-1]+" "+c[s-1]+","+e[s]+" "+t[s]+","+e[s],u+="l"+r[s]+",0 ";for(u+="l0,"+i+" ",u+="l -"+r[r.length-1]+",0 ",s=r.length-2;s>=0;s--)u+="C"+c[s]+","+(e[s+1]+i)+" "+l[s]+","+(e[s]+i)+" 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t+e}),g=0;g<c.length;g++){var v,m=c[g];v=p>0?d*(m.count/p):0;for(var y,x=new Array(n.length),b=0;b<m.categoryInds.length;b++){var _=m.categoryInds[b],w=i[b][_],k=a[b];x[k]=n[k][w],n[k][w]+=v;var T=t.dimensions[k].categories[w],A=T.bands.length,M=T.bands[A-1];if(void 0===M||m.rawColor!==M.rawColor){var S=void 0===M?0:M.y+M.height;T.bands.push({key:S,color:m.color,rawColor:m.rawColor,height:v,width:T.width,count:m.count,y:S,categoryViewModel:T,parcatsViewModel:t})}else{var E=T.bands[A-1];E.height+=v,E.count+=m.count}}y="hspline"===t.pathShape?D(s,x,l,v,.5):D(s,x,l,v,0),h[g]={key:m.valueInds[0],model:m,height:v,leftXs:s,topYs:x,dimWidths:l,svgD:y,parcatsViewModel:t}}t.paths=h}function R(t){var e=t.model.dimensions.map(function(t){return{displayInd:t.displayInd,dimensionInd:t.dimensionInd}});e.sort(function(t,e){return t.displayInd-e.displayInd});var r=[];for(var n in e){var i=e[n].dimensionInd,a=t.model.dimensions[i];r.push(F(t,a))}t.dimensions=r}function F(t,e){var r,n=t.model.dimensions.length,i=e.displayInd;r=40+(n>1?(t.width-80-16)/(n-1):0)*i;var a,o,s,l,c,u=[],f=t.model.maxCats,h=e.categories.length,p=e.count,d=t.height-8*(f-1),g=8*(f-h)/2,v=e.categories.map(function(t){return{displayInd:t.displayInd,categoryInd:t.categoryInd}});for(v.sort(function(t,e){return t.displayInd-e.displayInd}),c=0;c<h;c++)l=v[c].categoryInd,o=e.categories[l],a=p>0?o.count/p*d:0,s={key:o.valueInds[0],model:o,width:16,height:a,y:null!==o.dragY?o.dragY:g,bands:[],parcatsViewModel:t},g=g+a+8,u.push(s);return{key:e.dimensionInd,x:null!==e.dragX?e.dragX:r,y:0,width:16,model:e,categories:u,parcatsViewModel:t,dragCategoryDisplayInd:null,dragDimensionDisplayInd:null,initialDragDimensionDisplayInds:null,initialDragCategoryDisplayInds:null,dragHasMoved:null,potentialClickBand:null}}e.exports=function(t,e,r,n){u(r,t,n,e)}},{"../../components/drawing":601,"../../components/fx":619,"../../lib":703,"../../lib/svg_text_utils":727,"../../plot_api/plot_api":738,d3:157,tinycolor2:524}],1035:[function(t,e,r){"use strict";var n=t("./parcats");e.exports=function(t,e,r,i){var a=t._fullLayout,o=a._paper,s=a._size;n(t,o,e,{width:s.w,height:s.h,margin:{t:s.t,r:s.r,b:s.b,l:s.l}},r,i)}},{"./parcats":1034}],1036:[function(t,e,r){"use strict";var n=t("../../components/colorscale/attributes"),i=t("../../plots/cartesian/layout_attributes"),a=t("../../plots/font_attributes"),o=t("../../plots/domain").attributes,s=t("../../lib/extend").extendFlat,l=t("../../plot_api/plot_template").templatedArray;e.exports={domain:o({name:"parcoords",trace:!0,editType:"calc"}),labelfont:a({editType:"calc"}),tickfont:a({editType:"calc"}),rangefont:a({editType:"calc"}),dimensions:l("dimension",{label:{valType:"string",editType:"calc"},tickvals:s({},i.tickvals,{editType:"calc"}),ticktext:s({},i.ticktext,{editType:"calc"}),tickformat:{valType:"string",dflt:"3s",editType:"calc"},visible:{valType:"boolean",dflt:!0,editType:"calc"},range:{valType:"info_array",items:[{valType:"number",editType:"calc"},{valType:"number",editType:"calc"}],editType:"calc"},constraintrange:{valType:"info_array",freeLength:!0,dimensions:"1-2",items:[{valType:"number",editType:"calc"},{valType:"number",editType:"calc"}],editType:"calc"},multiselect:{valType:"boolean",dflt:!0,editType:"calc"},values:{valType:"data_array",editType:"calc"},editType:"calc"}),line:s({editType:"calc"},n("line",{colorscaleDflt:"Viridis",autoColorDflt:!1,editTypeOverride:"calc"}))}},{"../../components/colorscale/attributes":587,"../../lib/extend":693,"../../plot_api/plot_template":741,"../../plots/cartesian/layout_attributes":763,"../../plots/domain":776,"../../plots/font_attributes":777}],1037:[function(t,e,r){"use strict";var n=t("./constants"),i=t("d3"),a=t("../../lib/gup").keyFun,o=t("../../lib/gup").repeat,s=t("../../lib").sorterAsc,l=n.bar.snapRatio;function c(t,e){return t*(1-l)+e*l}var u=n.bar.snapClose;function f(t,e){return t*(1-u)+e*u}function h(t,e,r,n){if(function(t,e){for(var r=0;r<e.length;r++)if(t>=e[r][0]&&t<=e[r][1])return!0;return!1}(r,n))return r;var i=t?-1:1,a=0,o=e.length-1;if(i<0){var s=a;a=o,o=s}for(var l=e[a],u=l,h=a;i*h<i*o;h+=i){var p=h+i,d=e[p];if(i*r<i*f(l,d))return c(l,u);if(i*r<i*d||p===o)return c(d,l);u=l,l=d}}function p(t){t.attr("x",-n.bar.captureWidth/2).attr("width",n.bar.captureWidth)}function d(t){t.attr("visibility","visible").style("visibility","visible").attr("fill","yellow").attr("opacity",0)}function g(t){if(!t.brush.filterSpecified)return"0,"+t.height;for(var e,r,n,i=v(t.brush.filter.getConsolidated(),t.height),a=[0],o=i.length?i[0][0]:null,s=0;s<i.length;s++)r=(e=i[s])[1]-e[0],a.push(o),a.push(r),(n=s+1)<i.length&&(o=i[n][0]-e[1]);return a.push(t.height),a}function v(t,e){return t.map(function(t){return t.map(function(t){return t*e}).sort(s)})}function m(){i.select(document.body).style("cursor",null)}function y(t){t.attr("stroke-dasharray",g)}function x(t,e){var r=i.select(t).selectAll(".highlight, .highlight-shadow");y(e?r.transition().duration(n.bar.snapDuration).each("end",e):r)}function b(t,e){var r,i=t.brush,a=NaN,o={};if(i.filterSpecified){var s=t.height,l=i.filter.getConsolidated(),c=v(l,s),u=NaN,f=NaN,h=NaN;for(r=0;r<=c.length;r++){var p=c[r];if(p&&p[0]<=e&&e<=p[1]){u=r;break}if(f=r?r-1:NaN,p&&p[0]>e){h=r;break}}if(a=u,isNaN(a)&&(a=isNaN(f)||isNaN(h)?isNaN(f)?h:f:e-c[f][1]<c[h][0]-e?f:h),!isNaN(a)){var d=c[a],g=function(t,e){var r=n.bar.handleHeight;if(!(e>t[1]+r||e<t[0]-r))return e>=.9*t[1]+.1*t[0]?"n":e<=.9*t[0]+.1*t[1]?"s":"ns"}(d,e);g&&(o.interval=l[a],o.intervalPix=d,o.region=g)}}if(t.ordinal&&!o.region){var m=t.unitTickvals,y=t.unitToPaddedPx.invert(e);for(r=0;r<m.length;r++){var x=[.25*m[Math.max(r-1,0)]+.75*m[r],.25*m[Math.min(r+1,m.length-1)]+.75*m[r]];if(y>=x[0]&&y<=x[1]){o.clickableOrdinalRange=x;break}}}return o}function _(t){t.on("mousemove",function(t){if(i.event.preventDefault(),!t.parent.inBrushDrag){var e=b(t,t.height-i.mouse(this)[1]-2*n.verticalPadding),r="crosshair";e.clickableOrdinalRange?r="pointer":e.region&&(r=e.region+"-resize"),i.select(document.body).style("cursor",r)}}).on("mouseleave",function(t){t.parent.inBrushDrag||m()}).call(i.behavior.drag().on("dragstart",function(t){i.event.sourceEvent.stopPropagation();var e=t.height-i.mouse(this)[1]-2*n.verticalPadding,r=t.unitToPaddedPx.invert(e),a=t.brush,o=b(t,e),s=o.interval,l=a.svgBrush;if(l.wasDragged=!1,l.grabbingBar="ns"===o.region,l.grabbingBar){var c=s.map(t.unitToPaddedPx);l.grabPoint=e-c[0]-n.verticalPadding,l.barLength=c[1]-c[0]}l.clickableOrdinalRange=o.clickableOrdinalRange,l.stayingIntervals=t.multiselect&&a.filterSpecified?a.filter.getConsolidated():[],s&&(l.stayingIntervals=l.stayingIntervals.filter(function(t){return t[0]!==s[0]&&t[1]!==s[1]})),l.startExtent=o.region?s["s"===o.region?1:0]:r,t.parent.inBrushDrag=!0,l.brushStartCallback()}).on("drag",function(t){i.event.sourceEvent.stopPropagation();var e=t.height-i.mouse(this)[1]-2*n.verticalPadding,r=t.brush.svgBrush;r.wasDragged=!0,r.grabbingBar?r.newExtent=[e-r.grabPoint,e+r.barLength-r.grabPoint].map(t.unitToPaddedPx.invert):r.newExtent=[r.startExtent,t.unitToPaddedPx.invert(e)].sort(s);var a=Math.max(0,-r.newExtent[0]),o=Math.max(0,r.newExtent[1]-1);r.newExtent[0]+=a,r.newExtent[1]-=o,r.grabbingBar&&(r.newExtent[1]+=a,r.newExtent[0]-=o),t.brush.filterSpecified=!0,r.extent=r.stayingIntervals.concat([r.newExtent]),r.brushCallback(t),x(this.parentNode)}).on("dragend",function(t){i.event.sourceEvent.stopPropagation();var e=t.brush,r=e.filter,n=e.svgBrush,a=n.grabbingBar;if(n.grabbingBar=!1,n.grabLocation=void 0,t.parent.inBrushDrag=!1,m(),!n.wasDragged)return n.wasDragged=void 0,n.clickableOrdinalRange?e.filterSpecified&&t.multiselect?n.extent.push(n.clickableOrdinalRange):(n.extent=[n.clickableOrdinalRange],e.filterSpecified=!0):a?(n.extent=n.stayingIntervals,0===n.extent.length&&k(e)):k(e),n.brushCallback(t),x(this.parentNode),void n.brushEndCallback(e.filterSpecified?r.getConsolidated():[]);var o=function(){r.set(r.getConsolidated())};if(t.ordinal){var s=t.unitTickvals;s[s.length-1]<s[0]&&s.reverse(),n.newExtent=[h(0,s,n.newExtent[0],n.stayingIntervals),h(1,s,n.newExtent[1],n.stayingIntervals)];var l=n.newExtent[1]>n.newExtent[0];n.extent=n.stayingIntervals.concat(l?[n.newExtent]:[]),n.extent.length||k(e),n.brushCallback(t),l?x(this.parentNode,o):(o(),x(this.parentNode))}else o();n.brushEndCallback(e.filterSpecified?r.getConsolidated():[])}))}function w(t,e){return t[0]-e[0]}function k(t){t.filterSpecified=!1,t.svgBrush.extent=[[0,1]]}function T(t){for(var e,r=t.slice(),n=[],i=r.shift();i;){for(e=i.slice();(i=r.shift())&&i[0]<=e[1];)e[1]=Math.max(e[1],i[1]);n.push(e)}return n}e.exports={makeBrush:function(t,e,r,n,i,a){var o,l=function(){var t,e,r=[];return{set:function(n){r=n.map(function(t){return t.slice().sort(s)}).sort(w),t=T(r),e=r.reduce(function(t,e){return[Math.min(t[0],e[0]),Math.max(t[1],e[1])]},[1/0,-1/0])},get:function(){return r.slice()},getConsolidated:function(){return t},getBounds:function(){return e}}}();return l.set(r),{filter:l,filterSpecified:e,svgBrush:{extent:[],brushStartCallback:n,brushCallback:(o=i,function(t){var e=t.brush,r=function(t){return t.svgBrush.extent.map(function(t){return t.slice()})}(e).slice();e.filter.set(r),o()}),brushEndCallback:a}}},ensureAxisBrush:function(t){var e=t.selectAll("."+n.cn.axisBrush).data(o,a);e.enter().append("g").classed(n.cn.axisBrush,!0),function(t){var e=t.selectAll(".background").data(o);e.enter().append("rect").classed("background",!0).call(p).call(d).style("pointer-events","auto").attr("transform","translate(0 "+n.verticalPadding+")"),e.call(_).attr("height",function(t){return t.height-n.verticalPadding});var r=t.selectAll(".highlight-shadow").data(o);r.enter().append("line").classed("highlight-shadow",!0).attr("x",-n.bar.width/2).attr("stroke-width",n.bar.width+n.bar.strokeWidth).attr("stroke",n.bar.strokeColor).attr("opacity",n.bar.strokeOpacity).attr("stroke-linecap","butt"),r.attr("y1",function(t){return t.height}).call(y);var i=t.selectAll(".highlight").data(o);i.enter().append("line").classed("highlight",!0).attr("x",-n.bar.width/2).attr("stroke-width",n.bar.width-n.bar.strokeWidth).attr("stroke",n.bar.fillColor).attr("opacity",n.bar.fillOpacity).attr("stroke-linecap","butt"),i.attr("y1",function(t){return t.height}).call(y)}(e)},cleanRanges:function(t,e){if(Array.isArray(t[0])?(t=t.map(function(t){return t.sort(s)}),t=e.multiselect?T(t.sort(w)):[t[0]]):t=[t.sort(s)],e.tickvals){var r=e.tickvals.slice().sort(s);if(!(t=t.map(function(t){var e=[h(0,r,t[0],[]),h(1,r,t[1],[])];if(e[1]>e[0])return e}).filter(function(t){return t})).length)return}return t.length>1?t:t[0]}}},{"../../lib":703,"../../lib/gup":701,"./constants":1040,d3:157}],1038:[function(t,e,r){"use strict";var n=t("d3"),i=t("../../plots/get_data").getModuleCalcData,a=t("./plot"),o=t("../../constants/xmlns_namespaces");r.name="parcoords",r.plot=function(t){var e=i(t.calcdata,"parcoords")[0];e.length&&a(t,e)},r.clean=function(t,e,r,n){var i=n._has&&n._has("parcoords"),a=e._has&&e._has("parcoords");i&&!a&&(n._paperdiv.selectAll(".parcoords").remove(),n._glimages.selectAll("*").remove())},r.toSVG=function(t){var e=t._fullLayout._glimages,r=n.select(t).selectAll(".svg-container");r.filter(function(t,e){return e===r.size()-1}).selectAll(".gl-canvas-context, .gl-canvas-focus").each(function(){var t=this.toDataURL("image/png");e.append("svg:image").attr({xmlns:o.svg,"xlink:href":t,preserveAspectRatio:"none",x:0,y:0,width:this.width,height:this.height})}),window.setTimeout(function(){n.selectAll("#filterBarPattern").attr("id","filterBarPattern")},60)}},{"../../constants/xmlns_namespaces":681,"../../plots/get_data":786,"./plot":1046,d3:157}],1039:[function(t,e,r){"use strict";var n=t("../../components/colorscale"),i=t("../../lib"),a=t("../../lib/gup").wrap;function o(t){return i.isTypedArray(t)?Array.prototype.slice.call(t):t}e.exports=function(t,e){for(var r=0;r<e.dimensions.length;r++)e.dimensions[r].values=o(e.dimensions[r].values);var i,s;return e.line.color=o(e.line.color),n.hasColorscale(e,"line")&&Array.isArray(e.line.color)?(i=e.line.color,s=n.extractOpts(e.line).colorscale,n.calc(t,e,{vals:i,containerStr:"line",cLetter:"c"})):(i=function(t){for(var e=new Array(t),r=0;r<t;r++)e[r]=.5;return e}(e._length),s=[[0,e.line.color],[1,e.line.color]]),a({lineColor:i,cscale:s})}},{"../../components/colorscale":592,"../../lib":703,"../../lib/gup":701}],1040:[function(t,e,r){"use strict";e.exports={maxDimensionCount:60,overdrag:45,verticalPadding:2,tickDistance:50,canvasPixelRatio:1,blockLineCount:5e3,layers:["contextLineLayer","focusLineLayer","pickLineLayer"],axisTitleOffset:28,axisExtentOffset:10,bar:{width:4,captureWidth:10,fillColor:"magenta",fillOpacity:1,snapDuration:150,snapRatio:.25,snapClose:.01,strokeColor:"white",strokeOpacity:1,strokeWidth:1,handleHeight:8,handleOpacity:1,handleOverlap:0},cn:{axisExtentText:"axis-extent-text",parcoordsLineLayers:"parcoords-line-layers",parcoordsLineLayer:"parcoords-lines",parcoords:"parcoords",parcoordsControlView:"parcoords-control-view",yAxis:"y-axis",axisOverlays:"axis-overlays",axis:"axis",axisHeading:"axis-heading",axisTitle:"axis-title",axisExtent:"axis-extent",axisExtentTop:"axis-extent-top",axisExtentTopText:"axis-extent-top-text",axisExtentBottom:"axis-extent-bottom",axisExtentBottomText:"axis-extent-bottom-text",axisBrush:"axis-brush"},id:{filterBarPattern:"filter-bar-pattern"}}},{}],1041:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("../../components/colorscale/helpers").hasColorscale,a=t("../../components/colorscale/defaults"),o=t("../../plots/domain").defaults,s=t("../../plots/array_container_defaults"),l=t("./attributes"),c=t("./axisbrush"),u=t("./constants").maxDimensionCount,f=t("./merge_length");function h(t,e){function r(r,i){return n.coerce(t,e,l.dimensions,r,i)}var i=r("values"),a=r("visible");if(i&&i.length||(a=e.visible=!1),a){r("label"),r("tickvals"),r("ticktext"),r("tickformat"),r("range"),r("multiselect");var o=r("constraintrange");o&&(e.constraintrange=c.cleanRanges(o,e))}}e.exports=function(t,e,r,c){function p(r,i){return n.coerce(t,e,l,r,i)}var d=t.dimensions;Array.isArray(d)&&d.length>u&&(n.log("parcoords traces support up to "+u+" dimensions at the moment"),d.splice(u));var g=s(t,e,{name:"dimensions",handleItemDefaults:h}),v=function(t,e,r,o,s){var l=s("line.color",r);if(i(t,"line")&&n.isArrayOrTypedArray(l)){if(l.length)return s("line.colorscale"),a(t,e,o,s,{prefix:"line.",cLetter:"c"}),l.length;e.line.color=r}return 1/0}(t,e,r,c,p);o(e,c,p),Array.isArray(g)&&g.length||(e.visible=!1),f(e,g,"values",v);var m={family:c.font.family,size:Math.round(c.font.size/1.2),color:c.font.color};n.coerceFont(p,"labelfont",m),n.coerceFont(p,"tickfont",m),n.coerceFont(p,"rangefont",m)}},{"../../components/colorscale/defaults":590,"../../components/colorscale/helpers":591,"../../lib":703,"../../plots/array_container_defaults":747,"../../plots/domain":776,"./attributes":1036,"./axisbrush":1037,"./constants":1040,"./merge_length":1044}],1042:[function(t,e,r){"use strict";e.exports={attributes:t("./attributes"),supplyDefaults:t("./defaults"),calc:t("./calc"),plot:t("./plot"),colorbar:{container:"line",min:"cmin",max:"cmax"},moduleType:"trace",name:"parcoords",basePlotModule:t("./base_plot"),categories:["gl","regl","noOpacity","noHover"],meta:{}}},{"./attributes":1036,"./base_plot":1038,"./calc":1039,"./defaults":1041,"./plot":1046}],1043:[function(t,e,r){"use strict";var n=t("glslify"),i=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec4 p0, p1, p2, p3,\n               p4, p5, p6, p7,\n               p8, p9, pa, pb,\n               pc, pd, pe;\n\nattribute vec4 pf;\n\nuniform mat4 dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D,\n             loA, hiA, loB, hiB, loC, hiC, loD, hiD;\n\nuniform vec2 resolution,\n             viewBoxPosition,\n             viewBoxSize;\n\nuniform sampler2D palette;\nuniform sampler2D mask;\nuniform float maskHeight;\n\nuniform vec2 colorClamp;\n\nvarying vec4 fragColor;\n\nvec4 unit_1 = vec4(1, 1, 1, 1);\n\nfloat val(mat4 p, mat4 v) {\n    return dot(matrixCompMult(p, v) * unit_1, unit_1);\n}\n\nfloat axisY(\n        float x,\n        mat4 d[4],\n        mat4 dim1A, mat4 dim2A, mat4 dim1B, mat4 dim2B, mat4 dim1C, mat4 dim2C, mat4 dim1D, mat4 dim2D\n    ) {\n\n    float y1 = val(d[0], dim1A) + val(d[1], dim1B) + val(d[2], dim1C) + val(d[3], dim1D);\n    float y2 = val(d[0], dim2A) + val(d[1], dim2B) + val(d[2], dim2C) + val(d[3], dim2D);\n    return y1 * (1.0 - x) + y2 * x;\n}\n\nconst int bitsPerByte = 8;\n\nint mod2(int a) {\n    return a - 2 * (a / 2);\n}\n\nint mod8(int a) {\n    return a - 8 * (a / 8);\n}\n\nvec4 zero = vec4(0, 0, 0, 0);\nvec4 unit_0 = vec4(1, 1, 1, 1);\nvec2 xyProjection = vec2(1, 1);\n\nmat4 mclamp(mat4 m, mat4 lo, mat4 hi) {\n    return mat4(clamp(m[0], lo[0], hi[0]),\n                clamp(m[1], lo[1], hi[1]),\n                clamp(m[2], lo[2], hi[2]),\n                clamp(m[3], lo[3], hi[3]));\n}\n\nbool mshow(mat4 p, mat4 lo, mat4 hi) {\n    return mclamp(p, lo, hi) == p;\n}\n\nbool withinBoundingBox(\n        mat4 d[4],\n        mat4 loA, mat4 hiA, mat4 loB, mat4 hiB, mat4 loC, mat4 hiC, mat4 loD, mat4 hiD\n    ) {\n\n    return mshow(d[0], loA, hiA) &&\n           mshow(d[1], loB, hiB) &&\n           mshow(d[2], loC, hiC) &&\n           mshow(d[3], loD, hiD);\n}\n\nbool withinRasterMask(mat4 d[4], sampler2D mask, float height) {\n    bool result = true;\n    int bitInByteStepper;\n    float valY, valueY, scaleX;\n    int hit, bitmask, valX;\n    for(int i = 0; i < 4; i++) {\n        for(int j = 0; j < 4; j++) {\n            for(int k = 0; k < 4; k++) {\n                bitInByteStepper = mod8(j * 4 + k);\n                valX = i * 2 + j / 2;\n                valY = d[i][j][k];\n                valueY = valY * (height - 1.0) + 0.5;\n                scaleX = (float(valX) + 0.5) / 8.0;\n                hit = int(texture2D(mask, vec2(scaleX, (valueY + 0.5) / height))[3] * 255.0) / int(pow(2.0, float(bitInByteStepper)));\n                result = result && mod2(hit) == 1;\n            }\n        }\n    }\n    return result;\n}\n\nvec4 position(\n        float depth,\n        vec2 resolution, vec2 viewBoxPosition, vec2 viewBoxSize,\n        mat4 dims[4],\n        float signum,\n        mat4 dim1A, mat4 dim2A, mat4 dim1B, mat4 dim2B, mat4 dim1C, mat4 dim2C, mat4 dim1D, mat4 dim2D,\n        mat4 loA, mat4 hiA, mat4 loB, mat4 hiB, mat4 loC, mat4 hiC, mat4 loD, mat4 hiD,\n        sampler2D mask, float maskHeight\n    ) {\n\n    float x = 0.5 * signum + 0.5;\n    float y = axisY(x, dims, dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D);\n\n    float show = float(\n                            withinBoundingBox(dims, loA, hiA, loB, hiB, loC, hiC, loD, hiD)\n                         && withinRasterMask(dims, mask, maskHeight)\n                      );\n\n    vec2 viewBoxXY = viewBoxPosition + viewBoxSize * vec2(x, y);\n    float depthOrHide = depth + 2.0 * (1.0 - show);\n\n    return vec4(\n        xyProjection * (2.0 * viewBoxXY / resolution - 1.0),\n        depthOrHide,\n        1.0\n    );\n}\n\nvoid main() {\n\n    float prominence = abs(pf[3]);\n\n    mat4 p[4];\n    p[0] = mat4(p0, p1, p2, p3);\n    p[1] = mat4(p4, p5, p6, p7);\n    p[2] = mat4(p8, p9, pa, pb);\n    p[3] = mat4(pc, pd, pe, abs(pf));\n\n    gl_Position = position(\n        1.0 - prominence,\n        resolution, viewBoxPosition, viewBoxSize,\n        p,\n        sign(pf[3]),\n        dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D,\n        loA, hiA, loB, hiB, loC, hiC, loD, hiD,\n        mask, maskHeight\n    );\n\n    float clampedColorIndex = clamp((prominence - colorClamp[0]) / (colorClamp[1] - colorClamp[0]), 0.0, 1.0);\n    fragColor = texture2D(palette, vec2((clampedColorIndex * 255.0 + 0.5) / 256.0, 0.5));\n}\n"]),a=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec4 p0, p1, p2, p3,\n               p4, p5, p6, p7,\n               p8, p9, pa, pb,\n               pc, pd, pe;\n\nattribute vec4 pf;\n\nuniform mat4 dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D;\n\nuniform vec2 resolution,\n             viewBoxPosition,\n             viewBoxSize;\n\nuniform sampler2D palette;\n\nuniform vec2 colorClamp;\n\nvarying vec4 fragColor;\n\nvec2 xyProjection = vec2(1, 1);\n\nvec4 unit = vec4(1, 1, 1, 1);\n\nfloat val(mat4 p, mat4 v) {\n    return dot(matrixCompMult(p, v) * unit, unit);\n}\n\nfloat axisY(\n        float x,\n        mat4 d[4],\n        mat4 dim1A, mat4 dim2A, mat4 dim1B, mat4 dim2B, mat4 dim1C, mat4 dim2C, mat4 dim1D, mat4 dim2D\n    ) {\n\n    float y1 = val(d[0], dim1A) + val(d[1], dim1B) + val(d[2], dim1C) + val(d[3], dim1D);\n    float y2 = val(d[0], dim2A) + val(d[1], dim2B) + val(d[2], dim2C) + val(d[3], dim2D);\n    return y1 * (1.0 - x) + y2 * x;\n}\n\nvec4 position(\n        float depth,\n        vec2 resolution, vec2 viewBoxPosition, vec2 viewBoxSize,\n        mat4 dims[4],\n        float signum,\n        mat4 dim1A, mat4 dim2A, mat4 dim1B, mat4 dim2B, mat4 dim1C, mat4 dim2C, mat4 dim1D, mat4 dim2D\n    ) {\n\n    float x = 0.5 * signum + 0.5;\n    float y = axisY(x, dims, dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D);\n\n    vec2 viewBoxXY = viewBoxPosition + viewBoxSize * vec2(x, y);\n\n    return vec4(\n        xyProjection * (2.0 * viewBoxXY / resolution - 1.0),\n        depth,\n        1.0\n    );\n}\n\nvoid main() {\n\n    float prominence = abs(pf[3]);\n\n    mat4 p[4];\n    p[0] = mat4(p0, p1, p2, p3);\n    p[1] = mat4(p4, p5, p6, p7);\n    p[2] = mat4(p8, p9, pa, pb);\n    p[3] = mat4(pc, pd, pe, abs(pf));\n\n    gl_Position = position(\n        1.0 - prominence,\n        resolution, viewBoxPosition, viewBoxSize,\n        p,\n        sign(pf[3]),\n        dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D\n    );\n\n    float clampedColorIndex = clamp((prominence - colorClamp[0]) / (colorClamp[1] - colorClamp[0]), 0.0, 1.0);\n    fragColor = texture2D(palette, vec2((clampedColorIndex * 255.0 + 0.5) / 256.0, 0.5));\n}\n"]),o=n(["precision highp float;\n#define GLSLIFY 1\n\nattribute vec4 p0, p1, p2, p3,\n               p4, p5, p6, p7,\n               p8, p9, pa, pb,\n               pc, pd, pe;\n\nattribute vec4 pf;\n\nuniform mat4 dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D,\n             loA, hiA, loB, hiB, loC, hiC, loD, hiD;\n\nuniform vec2 resolution,\n             viewBoxPosition,\n             viewBoxSize;\n\nuniform sampler2D mask;\nuniform float maskHeight;\n\nuniform vec2 colorClamp;\n\nvarying vec4 fragColor;\n\nvec4 unit_1 = vec4(1, 1, 1, 1);\n\nfloat val(mat4 p, mat4 v) {\n    return dot(matrixCompMult(p, v) * unit_1, unit_1);\n}\n\nfloat axisY(\n        float x,\n        mat4 d[4],\n        mat4 dim1A, mat4 dim2A, mat4 dim1B, mat4 dim2B, mat4 dim1C, mat4 dim2C, mat4 dim1D, mat4 dim2D\n    ) {\n\n    float y1 = val(d[0], dim1A) + val(d[1], dim1B) + val(d[2], dim1C) + val(d[3], dim1D);\n    float y2 = val(d[0], dim2A) + val(d[1], dim2B) + val(d[2], dim2C) + val(d[3], dim2D);\n    return y1 * (1.0 - x) + y2 * x;\n}\n\nconst int bitsPerByte = 8;\n\nint mod2(int a) {\n    return a - 2 * (a / 2);\n}\n\nint mod8(int a) {\n    return a - 8 * (a / 8);\n}\n\nvec4 zero = vec4(0, 0, 0, 0);\nvec4 unit_0 = vec4(1, 1, 1, 1);\nvec2 xyProjection = vec2(1, 1);\n\nmat4 mclamp(mat4 m, mat4 lo, mat4 hi) {\n    return mat4(clamp(m[0], lo[0], hi[0]),\n                clamp(m[1], lo[1], hi[1]),\n                clamp(m[2], lo[2], hi[2]),\n                clamp(m[3], lo[3], hi[3]));\n}\n\nbool mshow(mat4 p, mat4 lo, mat4 hi) {\n    return mclamp(p, lo, hi) == p;\n}\n\nbool withinBoundingBox(\n        mat4 d[4],\n        mat4 loA, mat4 hiA, mat4 loB, mat4 hiB, mat4 loC, mat4 hiC, mat4 loD, mat4 hiD\n    ) {\n\n    return mshow(d[0], loA, hiA) &&\n           mshow(d[1], loB, hiB) &&\n           mshow(d[2], loC, hiC) &&\n           mshow(d[3], loD, hiD);\n}\n\nbool withinRasterMask(mat4 d[4], sampler2D mask, float height) {\n    bool result = true;\n    int bitInByteStepper;\n    float valY, valueY, scaleX;\n    int hit, bitmask, valX;\n    for(int i = 0; i < 4; i++) {\n        for(int j = 0; j < 4; j++) {\n            for(int k = 0; k < 4; k++) {\n                bitInByteStepper = mod8(j * 4 + k);\n                valX = i * 2 + j / 2;\n                valY = d[i][j][k];\n                valueY = valY * (height - 1.0) + 0.5;\n                scaleX = (float(valX) + 0.5) / 8.0;\n                hit = int(texture2D(mask, vec2(scaleX, (valueY + 0.5) / height))[3] * 255.0) / int(pow(2.0, float(bitInByteStepper)));\n                result = result && mod2(hit) == 1;\n            }\n        }\n    }\n    return result;\n}\n\nvec4 position(\n        float depth,\n        vec2 resolution, vec2 viewBoxPosition, vec2 viewBoxSize,\n        mat4 dims[4],\n        float signum,\n        mat4 dim1A, mat4 dim2A, mat4 dim1B, mat4 dim2B, mat4 dim1C, mat4 dim2C, mat4 dim1D, mat4 dim2D,\n        mat4 loA, mat4 hiA, mat4 loB, mat4 hiB, mat4 loC, mat4 hiC, mat4 loD, mat4 hiD,\n        sampler2D mask, float maskHeight\n    ) {\n\n    float x = 0.5 * signum + 0.5;\n    float y = axisY(x, dims, dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D);\n\n    float show = float(\n                            withinBoundingBox(dims, loA, hiA, loB, hiB, loC, hiC, loD, hiD)\n                         && withinRasterMask(dims, mask, maskHeight)\n                      );\n\n    vec2 viewBoxXY = viewBoxPosition + viewBoxSize * vec2(x, y);\n    float depthOrHide = depth + 2.0 * (1.0 - show);\n\n    return vec4(\n        xyProjection * (2.0 * viewBoxXY / resolution - 1.0),\n        depthOrHide,\n        1.0\n    );\n}\n\nvoid main() {\n\n    float prominence = abs(pf[3]);\n\n    mat4 p[4];\n    p[0] = mat4(p0, p1, p2, p3);\n    p[1] = mat4(p4, p5, p6, p7);\n    p[2] = mat4(p8, p9, pa, pb);\n    p[3] = mat4(pc, pd, pe, abs(pf));\n\n    gl_Position = position(\n        1.0 - prominence,\n        resolution, viewBoxPosition, viewBoxSize,\n        p,\n        sign(pf[3]),\n        dim1A, dim2A, dim1B, dim2B, dim1C, dim2C, dim1D, dim2D,\n        loA, hiA, loB, hiB, loC, hiC, loD, hiD,\n        mask, maskHeight\n    );\n\n    fragColor = vec4(pf.rgb, 1.0);\n}\n"]),s=n(["precision lowp float;\n#define GLSLIFY 1\n\nvarying vec4 fragColor;\n\nvoid main() {\n    gl_FragColor = fragColor;\n}\n"]),l=t("../../lib"),c=1e-6,u=1e-7,f=2048,h=64,p=2,d=4,g=8,v=h/g,m=[119,119,119],y=new Uint8Array(4),x=new Uint8Array(4),b={shape:[256,1],format:"rgba",type:"uint8",mag:"nearest",min:"nearest"};function _(t,e,r,n,i){var a=t._gl;a.enable(a.SCISSOR_TEST),a.scissor(e,r,n,i),t.clear({color:[0,0,0,0],depth:1})}function w(t,e,r,n,i,a){var o=a.key;r.drawCompleted||(!function(t){t.read({x:0,y:0,width:1,height:1,data:y})}(t),r.drawCompleted=!0),function s(l){var c;c=Math.min(n,i-l*n),a.offset=p*l*n,a.count=p*c,0===l&&(window.cancelAnimationFrame(r.currentRafs[o]),delete 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O(t){r=t.model,n=t.viewModel,p=n.dimensions.slice(),d=p[0]?p[0].values.length:0;var e=r.lines,i=M?e.color.map(function(t,r){return r/e.color.length}):e.color,a=Math.max(1/255,Math.pow(1/i.length,1/3)),o=function(t,e,r){for(var n,i=e.length,a=[],o=0;o<t;o++)for(var s=0;s<h;s++)a.push(s<i?e[s].paddedUnitValues[o]:s===h-1?(n=r[o],Math.max(c,Math.min(1-c,n))):s>=h-4?k(o,h-2-s):.5);return a}(d,p,i);!function(t,e,r){for(var n=0;n<16;n++)t["p"+n.toString(16)](T(e,r,n))}(C,d,o),L=S.texture(l.extendFlat({data:function(t,e,r){for(var n=[],i=0;i<256;i++){var a=t(i/255);n.push((e?m:a).concat(r))}return n}(r.unitToColor,A,Math.round(255*(A?a:1)))},b))}var I=[0,1];var D=[];function P(t,e,n,i,a,o,s,c,u,f,h){var p,d,g,v,m=[t,e],y=[0,1].map(function(){return[0,1,2,3].map(function(){return new Float32Array(16)})});for(p=0;p<2;p++)for(v=m[p],d=0;d<4;d++)for(g=0;g<16;g++)y[p][d][g]=g+16*d===v?1:0;var x=r.lines.canvasOverdrag,b=r.domain,_=r.canvasWidth,w=r.canvasHeight;return l.extendFlat({key:s,resolution:[_,w],viewBoxPosition:[n+x,i],viewBoxSize:[a,o],i:t,ii:e,dim1A:y[0][0],dim1B:y[0][1],dim1C:y[0][2],dim1D:y[0][3],dim2A:y[1][0],dim2B:y[1][1],dim2C:y[1][2],dim2D:y[1][3],colorClamp:I,scissorX:(c===u?0:n+x)+(r.pad.l-x)+r.layoutWidth*b.x[0],scissorWidth:(c===f?_-n+x:a+.5)+(c===u?n+x:0),scissorY:i+r.pad.b+r.layoutHeight*b.y[0],scissorHeight:o,viewportX:r.pad.l-x+r.layoutWidth*b.x[0],viewportY:r.pad.b+r.layoutHeight*b.y[0],viewportWidth:_,viewportHeight:w},h)}return{setColorDomain:function(t){I[0]=t[0],I[1]=t[1]},render:function(t,e,n){var i,a,o,s=t.length,l=1/0,c=-1/0;for(i=0;i<s;i++)t[i].dim2.canvasX>c&&(c=t[i].dim2.canvasX,o=i),t[i].dim1.canvasX<l&&(l=t[i].dim1.canvasX,a=i);0===s&&_(S,0,0,r.canvasWidth,r.canvasHeight);var h=A?{}:function(){var t,e,r,n=[0,1].map(function(){return[0,1,2,3].map(function(){return new Float32Array(16)})});for(t=0;t<2;t++)for(e=0;e<4;e++)for(r=0;r<16;r++){var i,a=r+16*e;i=a<p.length?p[a].brush.filter.getBounds()[t]:t,n[t][e][r]=i+(2*t-1)*u}function o(t,e){var r=f-1;return[Math.max(0,Math.floor(e[0]*r)),Math.min(r,Math.ceil(e[1]*r))]}for(var s=Array.apply(null,new Array(f*v)).map(function(){return 255}),l=0;l<p.length;l++){var c=l%g,h=(l-c)/g,d=Math.pow(2,c),m=p[l],x=m.brush.filter.get();if(!(x.length<2))for(var b=o(0,x[0])[1],_=1;_<x.length;_++){for(var w=o(0,x[_]),k=b+1;k<w[0];k++)s[k*v+h]&=~d;b=Math.max(b,w[1])}}var T={shape:[v,f],format:"alpha",type:"uint8",mag:"nearest",min:"nearest",data:s};return y?y(T):y=S.texture(T),{maskTexture:y,maskHeight:f,loA:n[0][0],loB:n[0][1],loC:n[0][2],loD:n[0][3],hiA:n[1][0],hiB:n[1][1],hiC:n[1][2],hiD:n[1][3]}}();for(i=0;i<s;i++){var m=t[i],x=m.dim1,b=x.crossfilterDimensionIndex,k=m.canvasX,T=m.canvasY,M=m.dim2.crossfilterDimensionIndex,C=m.panelSizeX,L=m.panelSizeY,O=k+C;if(e||!D[b]||D[b][0]!==k||D[b][1]!==O){D[b]=[k,O];var I=P(b,M,k,T,C,L,x.crossfilterDimensionIndex,i,a,o,h);E.clearOnly=n,w(S,z,E,e?r.lines.blockLineCount:d,d,I)}}},readPixel:function(t,e){return S.read({x:t,y:e,width:1,height:1,data:x}),x},readPixels:function(t,e,r,n){var i=new Uint8Array(4*r*n);return S.read({x:t,y:e,width:r,height:n,data:i}),i},destroy:function(){for(var e in t.style["pointer-events"]="none",L.destroy(),y&&y.destroy(),C)C[e].destroy()},update:O}}},{"../../lib":703,glslify:404}],1044:[function(t,e,r){"use strict";e.exports=function(t,e,r,n){var i,a;for(n||(n=1/0),i=0;i<e.length;i++)(a=e[i]).visible&&(n=Math.min(n,a[r].length));for(n===1/0&&(n=0),t._length=n,i=0;i<e.length;i++)(a=e[i]).visible&&(a._length=n);return n}},{}],1045:[function(t,e,r){"use strict";var n=t("d3"),i=t("color-rgba"),a=t("../../lib"),o=t("../../components/drawing"),s=t("../../components/colorscale"),l=t("../../lib/gup"),c=l.keyFun,u=l.repeat,f=l.unwrap,h=t("./constants"),p=t("./axisbrush"),d=t("./lines");function g(t){return!("visible"in t)||t.visible}function v(t){var e=t.range?t.range[0]:a.aggNums(Math.min,null,t.values,t._length),r=t.range?t.range[1]:a.aggNums(Math.max,null,t.values,t._length);return!isNaN(e)&&isFinite(e)||(e=0),!isNaN(r)&&isFinite(r)||(r=0),e===r&&(0===e?(e-=1,r+=1):(e*=.9,r*=1.1)),[e,r]}function m(t){return t.dimensions.some(function(t){return t.brush.filterSpecified})}function y(t,e,r){var o=f(e),l=o.trace,c=o.lineColor,u=l.line,p=s.extractOpts(u),d=p.reversescale?s.flipScale(o.cscale):o.cscale,m=l.domain,y=l.dimensions,x=t.width,b=l.labelfont,_=l.tickfont,w=l.rangefont,k=a.extendDeepNoArrays({},u,{color:c.map(n.scale.linear().domain(v({values:c,range:[p.min,p.max],_length:l._length}))),blockLineCount:h.blockLineCount,canvasOverdrag:h.overdrag*h.canvasPixelRatio}),T=Math.floor(x*(m.x[1]-m.x[0])),A=Math.floor(t.height*(m.y[1]-m.y[0])),M=t.margin||{l:80,r:80,t:100,b:80},S=T,E=A;return{key:r,colCount:y.filter(g).length,dimensions:y,tickDistance:h.tickDistance,unitToColor:function(t){var e=t.map(function(t){return t[0]}),r=t.map(function(t){var e=i(t[1]);return n.rgb("rgb("+e[0]+","+e[1]+","+e[2]+")")}),a="rgb".split("").map(function(t){return n.scale.linear().clamp(!0).domain(e).range(r.map((i=t,function(t){return t[i]})));var i});return function(t){return a.map(function(e){return e(t)})}}(d),lines:k,labelFont:b,tickFont:_,rangeFont:w,layoutWidth:x,layoutHeight:t.height,domain:m,translateX:m.x[0]*x,translateY:t.height-m.y[1]*t.height,pad:M,canvasWidth:S*h.canvasPixelRatio+2*k.canvasOverdrag,canvasHeight:E*h.canvasPixelRatio,width:S,height:E,canvasPixelRatio:h.canvasPixelRatio}}function x(t,e,r){var i=r.width,o=r.height,s=r.dimensions,l=r.canvasPixelRatio,c=function(t){return i*t/Math.max(1,r.colCount-1)},u=h.verticalPadding/o,f=function(t,e){return n.scale.linear().range([e,t-e])}(o,h.verticalPadding),d={key:r.key,xScale:c,model:r,inBrushDrag:!1},y={};return d.dimensions=s.filter(g).map(function(i,s){var g=function(t,e){return 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k=r.selectAll(".gl-canvas").each(function(t){t.viewModel=w[0],t.model=t.viewModel?t.viewModel.model:null}),T=null;k.filter(function(t){return t.pick}).style("pointer-events","auto").on("mousemove",function(t){if(_.linePickActive()&&t.lineLayer&&l&&l.hover){var e=n.event,r=this.width,i=this.height,a=n.mouse(this),o=a[0],s=a[1];if(o<0||s<0||o>=r||s>=i)return;var c=t.lineLayer.readPixel(o,i-1-s),u=0!==c[3],f=u?c[2]+256*(c[1]+256*c[0]):null,h={x:o,y:s,clientX:e.clientX,clientY:e.clientY,dataIndex:t.model.key,curveNumber:f};f!==T&&(u?l.hover(h):l.unhover&&l.unhover(h),T=f)}}),k.style("opacity",function(t){return t.pick?.01:1}),e.style("background","rgba(255, 255, 255, 0)");var A=e.selectAll("."+h.cn.parcoords).data(w,c);A.exit().remove(),A.enter().append("g").classed(h.cn.parcoords,!0).style("shape-rendering","crispEdges").style("pointer-events","none"),A.attr("transform",function(t){return"translate("+t.model.translateX+","+t.model.translateY+")"});var M=A.selectAll("."+h.cn.parcoordsControlView).data(u,c);M.enter().append("g").classed(h.cn.parcoordsControlView,!0),M.attr("transform",function(t){return"translate("+t.model.pad.l+","+t.model.pad.t+")"});var S=M.selectAll("."+h.cn.yAxis).data(function(t){return t.dimensions},c);function E(t,e){for(var r=e.panels||(e.panels=[]),n=t.data(),i=n.length-1,a=0;a<i;a++){var o=r[a]||(r[a]={}),s=n[a],l=n[a+1];o.dim1=s,o.dim2=l,o.canvasX=s.canvasX,o.panelSizeX=l.canvasX-s.canvasX,o.panelSizeY=e.model.canvasHeight,o.y=0,o.canvasY=0}}S.enter().append("g").classed(h.cn.yAxis,!0),M.each(function(t){E(S,t)}),k.each(function(t){if(t.viewModel){!t.lineLayer||l?t.lineLayer=d(this,t):t.lineLayer.update(t),(t.key||0===t.key)&&(t.viewModel[t.key]=t.lineLayer);var e=!t.context||l;t.lineLayer.render(t.viewModel.panels,e)}}),S.attr("transform",function(t){return"translate("+t.xScale(t.xIndex)+", 0)"}),S.call(n.behavior.drag().origin(function(t){return t}).on("drag",function(t){var e=t.parent;_.linePickActive(!1),t.x=Math.max(-h.overdrag,Math.min(t.model.width+h.overdrag,n.event.x)),t.canvasX=t.x*t.model.canvasPixelRatio,S.sort(function(t,e){return t.x-e.x}).each(function(e,r){e.xIndex=r,e.x=t===e?e.x:e.xScale(e.xIndex),e.canvasX=e.x*e.model.canvasPixelRatio}),E(S,e),S.filter(function(e){return 0!==Math.abs(t.xIndex-e.xIndex)}).attr("transform",function(t){return"translate("+t.xScale(t.xIndex)+", 0)"}),n.select(this).attr("transform","translate("+t.x+", 0)"),S.each(function(r,n,i){i===t.parent.key&&(e.dimensions[n]=r)}),e.contextLayer&&e.contextLayer.render(e.panels,!1,!m(e)),e.focusLayer.render&&e.focusLayer.render(e.panels)}).on("dragend",function(t){var e=t.parent;t.x=t.xScale(t.xIndex),t.canvasX=t.x*t.model.canvasPixelRatio,E(S,e),n.select(this).attr("transform",function(t){return"translate("+t.x+", 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D=I.selectAll("."+h.cn.axisExtentTop).data(u,c);D.enter().append("g").classed(h.cn.axisExtentTop,!0),D.attr("transform","translate(0,"+-h.axisExtentOffset+")");var P=D.selectAll("."+h.cn.axisExtentTopText).data(u,c);function R(t,e){if(t.ordinal)return"";var r=t.domainScale.domain();return n.format(t.tickFormat)(r[e?r.length-1:0])}P.enter().append("text").classed(h.cn.axisExtentTopText,!0).call(b),P.text(function(t){return R(t,!0)}).each(function(t){o.font(n.select(this),t.model.rangeFont)});var F=I.selectAll("."+h.cn.axisExtentBottom).data(u,c);F.enter().append("g").classed(h.cn.axisExtentBottom,!0),F.attr("transform",function(t){return"translate(0,"+(t.model.height+h.axisExtentOffset)+")"});var B=F.selectAll("."+h.cn.axisExtentBottomText).data(u,c);B.enter().append("text").classed(h.cn.axisExtentBottomText,!0).attr("dy","0.75em").call(b),B.text(function(t){return R(t)}).each(function(t){o.font(n.select(this),t.model.rangeFont)}),p.ensureAxisBrush(C)}},{"../../components/colorscale":592,"../../components/drawing":601,"../../lib":703,"../../lib/gup":701,"./axisbrush":1037,"./constants":1040,"./lines":1043,"color-rgba":115,d3:157}],1046:[function(t,e,r){"use strict";var n=t("./parcoords"),i=t("../../lib/prepare_regl");e.exports=function(t,e){var r=t._fullLayout,a=r._toppaper,o=r._paperdiv,s=r._glcontainer;if(i(t)){var l={},c={},u={},f={},h=r._size;e.forEach(function(e,r){var n=e[0].trace;u[r]=n.index;var i=f[r]=n._fullInput.index;l[r]=t.data[i].dimensions,c[r]=t.data[i].dimensions.slice()});n(o,a,s,e,{width:h.w,height:h.h,margin:{t:h.t,r:h.r,b:h.b,l:h.l}},{filterChanged:function(e,n,i){var a=c[e][n],o=i.map(function(t){return t.slice()}),s="dimensions["+n+"].constraintrange",l=r._tracePreGUI[t._fullData[u[e]]._fullInput.uid];if(void 0===l[s]){var h=a.constraintrange;l[s]=h||null}var p=t._fullData[u[e]].dimensions[n];o.length?(1===o.length&&(o=o[0]),a.constraintrange=o,p.constraintrange=o.slice(),o=[o]):(delete a.constraintrange,delete p.constraintrange,o=null);var d={};d[s]=o,t.emit("plotly_restyle",[d,[f[e]]])},hover:function(e){t.emit("plotly_hover",e)},unhover:function(e){t.emit("plotly_unhover",e)},axesMoved:function(e,r){function n(t){return!("visible"in t)||t.visible}function i(t,e,r){var n=e.indexOf(r),i=t.indexOf(n);return-1===i&&(i+=e.length),i}var a=function(t){return function(e,n){return i(r,t,e)-i(r,t,n)}}(c[e].filter(n));l[e].sort(a),c[e].filter(function(t){return!n(t)}).sort(function(t){return c[e].indexOf(t)}).forEach(function(t){l[e].splice(l[e].indexOf(t),1),l[e].splice(c[e].indexOf(t),0,t)}),t.emit("plotly_restyle",[{dimensions:[l[e]]},[f[e]]])}})}}},{"../../lib/prepare_regl":716,"./parcoords":1045}],1047:[function(t,e,r){"use strict";var n=t("../../plots/attributes"),i=t("../../plots/domain").attributes,a=t("../../plots/font_attributes"),o=t("../../components/color/attributes"),s=t("../../components/fx/hovertemplate_attributes"),l=t("../../lib/extend").extendFlat,c=a({editType:"plot",arrayOk:!0,colorEditType:"plot"});e.exports={labels:{valType:"data_array",editType:"calc"},label0:{valType:"number",dflt:0,editType:"calc"},dlabel:{valType:"number",dflt:1,editType:"calc"},values:{valType:"data_array",editType:"calc"},marker:{colors:{valType:"data_array",editType:"calc"},line:{color:{valType:"color",dflt:o.defaultLine,arrayOk:!0,editType:"style"},width:{valType:"number",min:0,dflt:0,arrayOk:!0,editType:"style"},editType:"calc"},editType:"calc"},text:{valType:"data_array",editType:"calc"},hovertext:{valType:"string",dflt:"",arrayOk:!0,editType:"style"},scalegroup:{valType:"string",dflt:"",editType:"calc"},textinfo:{valType:"flaglist",flags:["label","text","value","percent"],extras:["none"],editType:"calc"},hoverinfo:l({},n.hoverinfo,{flags:["label","text","value","percent","name"]}),hovertemplate:s({},{keys:["label","color","value","percent","text"]}),textposition:{valType:"enumerated",values:["inside","outside","auto","none"],dflt:"auto",arrayOk:!0,editType:"plot"},textfont:l({},c,{}),insidetextfont:l({},c,{}),outsidetextfont:l({},c,{}),title:{text:{valType:"string",dflt:"",editType:"plot"},font:l({},c,{}),position:{valType:"enumerated",values:["top 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right"],editType:"calc"}}}},{"../../components/color/attributes":579,"../../components/fx/hovertemplate_attributes":618,"../../lib/extend":693,"../../plots/attributes":748,"../../plots/domain":776,"../../plots/font_attributes":777}],1048:[function(t,e,r){"use strict";var n=t("../../registry"),i=t("../../plots/get_data").getModuleCalcData;r.name="pie",r.plot=function(t){var e=n.getModule("pie"),r=i(t.calcdata,e)[0];e.plot(t,r)},r.clean=function(t,e,r,n){var i=n._has&&n._has("pie"),a=e._has&&e._has("pie");i&&!a&&n._pielayer.selectAll("g.trace").remove()}},{"../../plots/get_data":786,"../../registry":831}],1049:[function(t,e,r){"use strict";var n=t("fast-isnumeric"),i=t("../../lib").isArrayOrTypedArray,a=t("tinycolor2"),o=t("../../components/color"),s=t("./helpers"),l=t("../../lib").isValidTextValue,c={};function u(t){return function(e,r){return!!e&&(!!(e=a(e)).isValid()&&(e=o.addOpacity(e,e.getAlpha()),t[r]||(t[r]=e),e))}}function f(t,e){var r,n=JSON.stringify(t),i=e[n];if(!i){for(i=t.slice(),r=0;r<t.length;r++)i.push(a(t[r]).lighten(20).toHexString());for(r=0;r<t.length;r++)i.push(a(t[r]).darken(20).toHexString());e[n]=i}return i}e.exports={calc:function(t,e){var r,a,o=[],c=t._fullLayout,f=c.hiddenlabels||[],h=e.labels,p=e.marker.colors||[],d=e.values,g=i(d)&&d.length;if(e.dlabel)for(h=new Array(d.length),r=0;r<d.length;r++)h[r]=String(e.label0+r*e.dlabel);var v={},m=u(c["_"+e.type+"colormap"]),y=(g?d:h).length,x=0,b=!1;for(r=0;r<y;r++){var _,w,k;if(g){if(_=d[r],!n(_))continue;if((_=+_)<0)continue}else _=1;void 0!==(w=h[r])&&""!==w||(w=r);var T=v[w=String(w)];void 0===T?(v[w]=o.length,(k=-1!==f.indexOf(w))||(x+=_),o.push({v:_,label:w,color:m(p[r],w),i:r,pts:[r],hidden:k})):(b=!0,(a=o[T]).v+=_,a.pts.push(r),a.hidden||(x+=_),!1===a.color&&p[r]&&(a.color=m(p[r],w)))}("funnelarea"===e.type?b:e.sort)&&o.sort(function(t,e){return e.v-t.v}),o[0]&&(o[0].vTotal=x);var A=e.textinfo;if(A&&"none"!==A){var M,S=A.split("+"),E=function(t){return-1!==S.indexOf(t)},C=E("label"),L=E("text"),z=E("value"),O=E("percent"),I=c.separators;for(r=0;r<o.length;r++){if(a=o[r],M=C?[a.label]:[],L){var D=s.getFirstFilled(e.text,a.pts);l(D)&&M.push(D)}z&&M.push(s.formatPieValue(a.v,I)),O&&M.push(s.formatPiePercent(a.v/x,I)),a.text=M.join("<br>")}}return o},crossTraceCalc:function(t,e){var r=(e||{}).type;r||(r="pie");var n=t._fullLayout,i=t.calcdata,a=n[r+"colorway"],o=n["_"+r+"colormap"];n["extend"+r+"colors"]&&(a=f(a,c));for(var s=0,l=0;l<i.length;l++){var u=i[l];if(u[0].trace.type===r)for(var h=0;h<u.length;h++){var p=u[h];!1===p.color&&(o[p.label]?p.color=o[p.label]:(o[p.label]=p.color=a[s%a.length],s++))}}},makePullColorFn:u,generateExtendedColors:f}},{"../../components/color":580,"../../lib":703,"./helpers":1052,"fast-isnumeric":224,tinycolor2:524}],1050:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("./attributes"),a=t("../../plots/domain").defaults,o=t("../bar/defaults").handleText;e.exports=function(t,e,r,s){function l(r,a){return n.coerce(t,e,i,r,a)}var c,u=l("values"),f=n.isArrayOrTypedArray(u),h=l("labels");if(Array.isArray(h)?(c=h.length,f&&(c=Math.min(c,u.length))):f&&(c=u.length,l("label0"),l("dlabel")),c){e._length=c,l("marker.line.width")&&l("marker.line.color"),l("marker.colors"),l("scalegroup");var p=l("text"),d=l("textinfo",Array.isArray(p)?"text+percent":"percent");if(l("hovertext"),l("hovertemplate"),d&&"none"!==d){var g=l("textposition");o(t,e,s,l,g,{moduleHasSelected:!1,moduleHasUnselected:!1,moduleHasConstrain:!1,moduleHasCliponaxis:!1,moduleHasTextangle:!1,moduleHasInsideanchor:!1})}a(e,s,l);var v=l("hole");if(l("title.text")){var m=l("title.position",v?"middle center":"top center");v||"middle center"!==m||(e.title.position="top center"),n.coerceFont(l,"title.font",s.font)}l("sort"),l("direction"),l("rotation"),l("pull")}else e.visible=!1}},{"../../lib":703,"../../plots/domain":776,"../bar/defaults":845,"./attributes":1047}],1051:[function(t,e,r){"use strict";var n=t("../../components/fx/helpers").appendArrayMultiPointValues;e.exports=function(t,e){var r={curveNumber:e.index,pointNumbers:t.pts,data:e._input,fullData:e,label:t.label,color:t.color,value:t.v,percent:t.percent,text:t.text,v:t.v};return 1===t.pts.length&&(r.pointNumber=r.i=t.pts[0]),n(r,e,t.pts),"funnelarea"===e.type&&(delete r.v,delete r.i),r}},{"../../components/fx/helpers":615}],1052:[function(t,e,r){"use strict";var n=t("../../lib");r.formatPiePercent=function(t,e){var r=(100*t).toPrecision(3);return-1!==r.lastIndexOf(".")&&(r=r.replace(/[.]?0+$/,"")),n.numSeparate(r,e)+"%"},r.formatPieValue=function(t,e){var r=t.toPrecision(10);return-1!==r.lastIndexOf(".")&&(r=r.replace(/[.]?0+$/,"")),n.numSeparate(r,e)},r.getFirstFilled=function(t,e){if(Array.isArray(t))for(var r=0;r<e.length;r++){var n=t[e[r]];if(n||0===n)return n}},r.castOption=function(t,e){return Array.isArray(t)?r.getFirstFilled(t,e):t||void 0}},{"../../lib":703}],1053:[function(t,e,r){"use strict";e.exports={attributes:t("./attributes"),supplyDefaults:t("./defaults"),supplyLayoutDefaults:t("./layout_defaults"),layoutAttributes:t("./layout_attributes"),calc:t("./calc").calc,crossTraceCalc:t("./calc").crossTraceCalc,plot:t("./plot").plot,style:t("./style"),styleOne:t("./style_one"),moduleType:"trace",name:"pie",basePlotModule:t("./base_plot"),categories:["pie-like","pie","showLegend"],meta:{}}},{"./attributes":1047,"./base_plot":1048,"./calc":1049,"./defaults":1050,"./layout_attributes":1054,"./layout_defaults":1055,"./plot":1056,"./style":1057,"./style_one":1058}],1054:[function(t,e,r){"use strict";e.exports={hiddenlabels:{valType:"data_array",editType:"calc"},piecolorway:{valType:"colorlist",editType:"calc"},extendpiecolors:{valType:"boolean",dflt:!0,editType:"calc"}}},{}],1055:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("./layout_attributes");e.exports=function(t,e){function r(r,a){return n.coerce(t,e,i,r,a)}r("hiddenlabels"),r("piecolorway",e.colorway),r("extendpiecolors")}},{"../../lib":703,"./layout_attributes":1054}],1056:[function(t,e,r){"use strict";var n=t("d3"),i=t("../../components/fx"),a=t("../../components/color"),o=t("../../components/drawing"),s=t("../../lib"),l=t("../../lib/svg_text_utils"),c=t("./helpers"),u=t("./event_data");function f(t,e,r){var a=r[0],o=a.trace,l=a.cx,f=a.cy;"_hasHoverLabel"in o||(o._hasHoverLabel=!1),"_hasHoverEvent"in o||(o._hasHoverEvent=!1),t.on("mouseover",function(t){var r=e._fullLayout,h=e._fullData[o.index];if(!e._dragging&&!1!==r.hovermode){var p=h.hoverinfo;if(Array.isArray(p)&&(p=i.castHoverinfo({hoverinfo:[c.castOption(p,t.pts)],_module:o._module},r,0)),"all"===p&&(p="label+text+value+percent+name"),h.hovertemplate||"none"!==p&&"skip"!==p&&p){var d=t.rInscribed||0,g=l+t.pxmid[0]*(1-d),v=f+t.pxmid[1]*(1-d),m=r.separators,y=[];if(p&&-1!==p.indexOf("label")&&y.push(t.label),t.text=c.castOption(h.hovertext||h.text,t.pts),p&&-1!==p.indexOf("text")){var x=t.text;s.isValidTextValue(x)&&y.push(x)}t.value=t.v,t.valueLabel=c.formatPieValue(t.v,m),p&&-1!==p.indexOf("value")&&y.push(t.valueLabel),t.percent=t.v/a.vTotal,t.percentLabel=c.formatPiePercent(t.percent,m),p&&-1!==p.indexOf("percent")&&y.push(t.percentLabel);var b=h.hoverlabel,_=b.font;i.loneHover({trace:o,x0:g-d*a.r,x1:g+d*a.r,y:v,text:y.join("<br>"),name:h.hovertemplate||-1!==p.indexOf("name")?h.name:void 0,idealAlign:t.pxmid[0]<0?"left":"right",color:c.castOption(b.bgcolor,t.pts)||t.color,borderColor:c.castOption(b.bordercolor,t.pts),fontFamily:c.castOption(_.family,t.pts),fontSize:c.castOption(_.size,t.pts),fontColor:c.castOption(_.color,t.pts),nameLength:c.castOption(b.namelength,t.pts),textAlign:c.castOption(b.align,t.pts),hovertemplate:c.castOption(h.hovertemplate,t.pts),hovertemplateLabels:t,eventData:[u(t,h)]},{container:r._hoverlayer.node(),outerContainer:r._paper.node(),gd:e}),o._hasHoverLabel=!0}o._hasHoverEvent=!0,e.emit("plotly_hover",{points:[u(t,h)],event:n.event})}}),t.on("mouseout",function(t){var r=e._fullLayout,a=e._fullData[o.index],s=n.select(this).datum();o._hasHoverEvent&&(t.originalEvent=n.event,e.emit("plotly_unhover",{points:[u(s,a)],event:n.event}),o._hasHoverEvent=!1),o._hasHoverLabel&&(i.loneUnhover(r._hoverlayer.node()),o._hasHoverLabel=!1)}),t.on("click",function(t){var r=e._fullLayout,a=e._fullData[o.index];e._dragging||!1===r.hovermode||(e._hoverdata=[u(t,a)],i.click(e,n.event))})}function h(t,e,r){var n=c.castOption(t.insidetextfont.color,e.pts);!n&&t._input.textfont&&(n=c.castOption(t._input.textfont.color,e.pts));var i=c.castOption(t.insidetextfont.family,e.pts)||c.castOption(t.textfont.family,e.pts)||r.family,o=c.castOption(t.insidetextfont.size,e.pts)||c.castOption(t.textfont.size,e.pts)||r.size;return{color:n||a.contrast(e.color),family:i,size:o}}function p(t,e){for(var r,n,i=0;i<t.length;i++)if((n=(r=t[i][0]).trace).title.text){var a=n.title.text;n._meta&&(a=s.templateString(a,n._meta));var c=o.tester.append("text").attr("data-notex",1).text(a).call(o.font,n.title.font).call(l.convertToTspans,e),u=o.bBox(c.node(),!0);r.titleBox={width:u.width,height:u.height},c.remove()}}function d(t,e,r){var n=Math.sqrt(t.width*t.width+t.height*t.height),i=t.width/t.height,a=e.halfangle,o=e.ring,s=e.rInscribed,l=r.r||e.rpx1,c={scale:s*l*2/n,rCenter:1-s,rotate:0};if(c.scale>=1)return c;var u=i+1/(2*Math.tan(a)),f=l*Math.min(1/(Math.sqrt(u*u+.5)+u),o/(Math.sqrt(i*i+o/2)+i)),h={scale:2*f/t.height,rCenter:Math.cos(f/l)-f*i/l,rotate:(180/Math.PI*e.midangle+720)%180-90},p=1/i,d=p+1/(2*Math.tan(a)),g=l*Math.min(1/(Math.sqrt(d*d+.5)+d),o/(Math.sqrt(p*p+o/2)+p)),v={scale:2*g/t.width,rCenter:Math.cos(g/l)-g/i/l,rotate:(180/Math.PI*e.midangle+810)%180-90},m=v.scale>h.scale?v:h;return c.scale<1&&m.scale>c.scale?m:c}function g(t,e){return t.v!==e.vTotal||e.trace.hole?Math.min(1/(1+1/Math.sin(t.halfangle)),t.ring/2):1}function v(t,e){var r=e.pxmid[0],n=e.pxmid[1],i=t.width/2,a=t.height/2;return r<0&&(i*=-1),n<0&&(a*=-1),{scale:1,rCenter:1,rotate:0,x:i+Math.abs(a)*(i>0?1:-1)/2,y:a/(1+r*r/(n*n)),outside:!0}}function m(t,e){var r,n,i,a=t.trace,o={x:t.cx,y:t.cy},s={tx:0,ty:0};s.ty+=a.title.font.size,i=x(a),-1!==a.title.position.indexOf("top")?(o.y-=(1+i)*t.r,s.ty-=t.titleBox.height):-1!==a.title.position.indexOf("bottom")&&(o.y+=(1+i)*t.r);var l,c,u=(l=t.r,c=t.trace.aspectratio,l/(void 0===c?1:c)),f=e.w*(a.domain.x[1]-a.domain.x[0])/2;return-1!==a.title.position.indexOf("left")?(f+=u,o.x-=(1+i)*u,s.tx+=t.titleBox.width/2):-1!==a.title.position.indexOf("center")?f*=2:-1!==a.title.position.indexOf("right")&&(f+=u,o.x+=(1+i)*u,s.tx-=t.titleBox.width/2),r=f/t.titleBox.width,n=y(t,e)/t.titleBox.height,{x:o.x,y:o.y,scale:Math.min(r,n),tx:s.tx,ty:s.ty}}function y(t,e){var r=t.trace,n=e.h*(r.domain.y[1]-r.domain.y[0]);return Math.min(t.titleBox.height,n/2)}function x(t){var e,r=t.pull;if(!r)return 0;if(Array.isArray(r))for(r=0,e=0;e<t.pull.length;e++)t.pull[e]>r&&(r=t.pull[e]);return r}function b(t,e){for(var r=[],n=0;n<t.length;n++){var i=t[n][0],a=i.trace,o=a.domain,s=e.w*(o.x[1]-o.x[0]),l=e.h*(o.y[1]-o.y[0]);a.title.text&&"middle center"!==a.title.position&&(l-=y(i,e));var c=s/2,u=l/2;"funnelarea"!==a.type||a.scalegroup||(u/=a.aspectratio),i.r=Math.min(c,u)/(1+x(a)),i.cx=e.l+e.w*(a.domain.x[1]+a.domain.x[0])/2,i.cy=e.t+e.h*(1-a.domain.y[0])-l/2,a.title.text&&-1!==a.title.position.indexOf("bottom")&&(i.cy-=y(i,e)),a.scalegroup&&-1===r.indexOf(a.scalegroup)&&r.push(a.scalegroup)}!function(t,e){for(var r,n,i,a=0;a<e.length;a++){var o=1/0,s=e[a];for(n=0;n<t.length;n++)if(r=t[n][0],(i=r.trace).scalegroup===s){var l;if("pie"===i.type)l=r.r*r.r;else if("funnelarea"===i.type){var c,u;i.aspectratio>1?(c=r.r,u=c/i.aspectratio):(u=r.r,c=u*i.aspectratio),c*=(1+i.baseratio)/2,l=c*u}o=Math.min(o,l/r.vTotal)}for(n=0;n<t.length;n++)if(r=t[n][0],(i=r.trace).scalegroup===s){var f=o*r.vTotal;"funnelarea"===i.type&&(f/=(1+i.baseratio)/2,f/=i.aspectratio),r.r=Math.sqrt(f)}}}(t,r)}e.exports={plot:function(t,e){var r=t._fullLayout;p(e,t),b(e,r._size);var i=s.makeTraceGroups(r._pielayer,e,"trace").each(function(e){var i=n.select(this),u=e[0],p=u.trace;!function(t){var e,r,n,i=t[0],a=i.trace,o=a.rotation*Math.PI/180,s=2*Math.PI/i.vTotal,l="px0",c="px1";if("counterclockwise"===a.direction){for(e=0;e<t.length&&t[e].hidden;e++);if(e===t.length)return;o+=s*t[e].v,s*=-1,l="px1",c="px0"}function u(t){return[i.r*Math.sin(t),-i.r*Math.cos(t)]}for(n=u(o),e=0;e<t.length;e++)(r=t[e]).hidden||(r[l]=n,o+=s*r.v/2,r.pxmid=u(o),r.midangle=o,o+=s*r.v/2,n=u(o),r[c]=n,r.largeArc=r.v>i.vTotal/2?1:0,r.halfangle=Math.PI*Math.min(r.v/i.vTotal,.5),r.ring=1-a.hole,r.rInscribed=g(r,i))}(e),i.attr("stroke-linejoin","round"),i.each(function(){var i=n.select(this).selectAll("g.slice").data(e);i.enter().append("g").classed("slice",!0),i.exit().remove();var g=[[[],[]],[[],[]]],y=!1;i.each(function(r){if(r.hidden)n.select(this).selectAll("path,g").remove();else{r.pointNumber=r.i,r.curveNumber=p.index,g[r.pxmid[1]<0?0:1][r.pxmid[0]<0?0:1].push(r);var i=u.cx,a=u.cy,m=n.select(this),x=m.selectAll("path.surface").data([r]);if(x.enter().append("path").classed("surface",!0).style({"pointer-events":"all"}),m.call(f,t,e),p.pull){var b=+c.castOption(p.pull,r.pts)||0;b>0&&(i+=b*r.pxmid[0],a+=b*r.pxmid[1])}r.cxFinal=i,r.cyFinal=a;var _=p.hole;if(r.v===u.vTotal){var w="M"+(i+r.px0[0])+","+(a+r.px0[1])+S(r.px0,r.pxmid,!0,1)+S(r.pxmid,r.px0,!0,1)+"Z";_?x.attr("d","M"+(i+_*r.px0[0])+","+(a+_*r.px0[1])+S(r.px0,r.pxmid,!1,_)+S(r.pxmid,r.px0,!1,_)+"Z"+w):x.attr("d",w)}else{var k=S(r.px0,r.px1,!0,1);if(_){var T=1-_;x.attr("d","M"+(i+_*r.px1[0])+","+(a+_*r.px1[1])+S(r.px1,r.px0,!1,_)+"l"+T*r.px0[0]+","+T*r.px0[1]+k+"Z")}else x.attr("d","M"+i+","+a+"l"+r.px0[0]+","+r.px0[1]+k+"Z")}var A=c.castOption(p.textposition,r.pts),M=m.selectAll("g.slicetext").data(r.text&&"none"!==A?[0]:[]);M.enter().append("g").classed("slicetext",!0),M.exit().remove(),M.each(function(){var e=s.ensureSingle(n.select(this),"text","",function(t){t.attr("data-notex",1)});e.text(r.text).attr({class:"slicetext",transform:"","text-anchor":"middle"}).call(o.font,"outside"===A?function(t,e,r){var n=c.castOption(t.outsidetextfont.color,e.pts)||c.castOption(t.textfont.color,e.pts)||r.color,i=c.castOption(t.outsidetextfont.family,e.pts)||c.castOption(t.textfont.family,e.pts)||r.family,a=c.castOption(t.outsidetextfont.size,e.pts)||c.castOption(t.textfont.size,e.pts)||r.size;return{color:n,family:i,size:a}}(p,r,t._fullLayout.font):h(p,r,t._fullLayout.font)).call(l.convertToTspans,t);var f,g=o.bBox(e.node());"outside"===A?f=v(g,r):(f=d(g,r,u),"auto"===A&&f.scale<1&&(e.call(o.font,p.outsidetextfont),p.outsidetextfont.family===p.insidetextfont.family&&p.outsidetextfont.size===p.insidetextfont.size||(g=o.bBox(e.node())),f=v(g,r)));var m=i+r.pxmid[0]*f.rCenter+(f.x||0),x=a+r.pxmid[1]*f.rCenter+(f.y||0);f.outside&&(r.yLabelMin=x-g.height/2,r.yLabelMid=x,r.yLabelMax=x+g.height/2,r.labelExtraX=0,r.labelExtraY=0,y=!0),e.attr("transform","translate("+m+","+x+")"+(f.scale<1?"scale("+f.scale+")":"")+(f.rotate?"rotate("+f.rotate+")":"")+"translate("+-(g.left+g.right)/2+","+-(g.top+g.bottom)/2+")")})}function S(t,e,n,i){var a=i*(e[0]-t[0]),o=i*(e[1]-t[1]);return"a"+i*u.r+","+i*u.r+" 0 "+r.largeArc+(n?" 1 ":" 0 ")+a+","+o}});var x=n.select(this).selectAll("g.titletext").data(p.title.text?[0]:[]);x.enter().append("g").classed("titletext",!0),x.exit().remove(),x.each(function(){var e,i=s.ensureSingle(n.select(this),"text","",function(t){t.attr("data-notex",1)}),a=p.title.text;p._meta&&(a=s.templateString(a,p._meta)),i.text(a).attr({class:"titletext",transform:"","text-anchor":"middle"}).call(o.font,p.title.font).call(l.convertToTspans,t),e="middle center"===p.title.position?function(t){var e=Math.sqrt(t.titleBox.width*t.titleBox.width+t.titleBox.height*t.titleBox.height);return{x:t.cx,y:t.cy,scale:t.trace.hole*t.r*2/e,tx:0,ty:-t.titleBox.height/2+t.trace.title.font.size}}(u):m(u,r._size),i.attr("transform","translate("+e.x+","+e.y+")"+(e.scale<1?"scale("+e.scale+")":"")+"translate("+e.tx+","+e.ty+")")}),y&&function(t,e){var r,n,i,a,o,s,l,u,f,h,p,d,g;function v(t,e){return t.pxmid[1]-e.pxmid[1]}function m(t,e){return e.pxmid[1]-t.pxmid[1]}function y(t,r){r||(r={});var i,u,f,p,d,g,v=r.labelExtraY+(n?r.yLabelMax:r.yLabelMin),m=n?t.yLabelMin:t.yLabelMax,y=n?t.yLabelMax:t.yLabelMin,x=t.cyFinal+o(t.px0[1],t.px1[1]),b=v-m;if(b*l>0&&(t.labelExtraY=b),Array.isArray(e.pull))for(u=0;u<h.length;u++)(f=h[u])===t||(c.castOption(e.pull,t.pts)||0)>=(c.castOption(e.pull,f.pts)||0)||((t.pxmid[1]-f.pxmid[1])*l>0?(p=f.cyFinal+o(f.px0[1],f.px1[1]),(b=p-m-t.labelExtraY)*l>0&&(t.labelExtraY+=b)):(y+t.labelExtraY-x)*l>0&&(i=3*s*Math.abs(u-h.indexOf(t)),d=f.cxFinal+a(f.px0[0],f.px1[0]),(g=d+i-(t.cxFinal+t.pxmid[0])-t.labelExtraX)*s>0&&(t.labelExtraX+=g)))}for(n=0;n<2;n++)for(i=n?v:m,o=n?Math.max:Math.min,l=n?1:-1,r=0;r<2;r++){for(a=r?Math.max:Math.min,s=r?1:-1,(u=t[n][r]).sort(i),f=t[1-n][r],h=f.concat(u),d=[],p=0;p<u.length;p++)void 0!==u[p].yLabelMid&&d.push(u[p]);for(g=!1,p=0;n&&p<f.length;p++)if(void 0!==f[p].yLabelMid){g=f[p];break}for(p=0;p<d.length;p++){var x=p&&d[p-1];g&&!p&&(x=g),y(d[p],x)}}}(g,p),function(t,e){t.each(function(t){var r=n.select(this);if(t.labelExtraX||t.labelExtraY){var i=r.select("g.slicetext text");i.attr("transform","translate("+t.labelExtraX+","+t.labelExtraY+")"+i.attr("transform"));var o=t.cxFinal+t.pxmid[0],l=t.cyFinal+t.pxmid[1],c="M"+o+","+l,u=(t.yLabelMax-t.yLabelMin)*(t.pxmid[0]<0?-1:1)/4;if(t.labelExtraX){var f=t.labelExtraX*t.pxmid[1]/t.pxmid[0],h=t.yLabelMid+t.labelExtraY-(t.cyFinal+t.pxmid[1]);Math.abs(f)>Math.abs(h)?c+="l"+h*t.pxmid[0]/t.pxmid[1]+","+h+"H"+(o+t.labelExtraX+u):c+="l"+t.labelExtraX+","+f+"v"+(h-f)+"h"+u}else c+="V"+(t.yLabelMid+t.labelExtraY)+"h"+u;s.ensureSingle(r,"path","textline").call(a.stroke,e.outsidetextfont.color).attr({"stroke-width":Math.min(2,e.outsidetextfont.size/8),d:c,fill:"none"})}else r.select("path.textline").remove()})}(i,p)})});setTimeout(function(){i.selectAll("tspan").each(function(){var t=n.select(this);t.attr("dy")&&t.attr("dy",t.attr("dy"))})},0)},transformInsideText:d,determineInsideTextFont:h,positionTitleOutside:m,prerenderTitles:p,layoutAreas:b,attachFxHandlers:f}},{"../../components/color":580,"../../components/drawing":601,"../../components/fx":619,"../../lib":703,"../../lib/svg_text_utils":727,"./event_data":1051,"./helpers":1052,d3:157}],1057:[function(t,e,r){"use strict";var n=t("d3"),i=t("./style_one");e.exports=function(t){t._fullLayout._pielayer.selectAll(".trace").each(function(t){var e=t[0].trace,r=n.select(this);r.style({opacity:e.opacity}),r.selectAll("path.surface").each(function(t){n.select(this).call(i,t,e)})})}},{"./style_one":1058,d3:157}],1058:[function(t,e,r){"use strict";var n=t("../../components/color"),i=t("./helpers").castOption;e.exports=function(t,e,r){var a=r.marker.line,o=i(a.color,e.pts)||n.defaultLine,s=i(a.width,e.pts)||0;t.style("stroke-width",s).call(n.fill,e.color).call(n.stroke,o)}},{"../../components/color":580,"./helpers":1052}],1059:[function(t,e,r){"use strict";var n=t("../scatter/attributes");e.exports={x:n.x,y:n.y,xy:{valType:"data_array",editType:"calc"},indices:{valType:"data_array",editType:"calc"},xbounds:{valType:"data_array",editType:"calc"},ybounds:{valType:"data_array",editType:"calc"},text:n.text,marker:{color:{valType:"color",arrayOk:!1,editType:"calc"},opacity:{valType:"number",min:0,max:1,dflt:1,arrayOk:!1,editType:"calc"},blend:{valType:"boolean",dflt:null,editType:"calc"},sizemin:{valType:"number",min:.1,max:2,dflt:.5,editType:"calc"},sizemax:{valType:"number",min:.1,dflt:20,editType:"calc"},border:{color:{valType:"color",arrayOk:!1,editType:"calc"},arearatio:{valType:"number",min:0,max:1,dflt:0,editType:"calc"},editType:"calc"},editType:"calc"},transforms:void 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y=a.loneHover({x0:d,x1:g,y:v,name:n.format(i.valueFormat)(i.node.value)+i.valueSuffix,text:[i.node.label,T+i.node.targetLinks.length,A+i.node.sourceLinks.length].filter(u).join("<br>"),color:b(o,"bgcolor")||i.tinyColorHue,borderColor:b(o,"bordercolor"),fontFamily:b(o,"font.family"),fontSize:b(o,"font.size"),fontColor:b(o,"font.color"),nameLength:b(o,"namelength"),textAlign:b(o,"align"),idealAlign:"left",hovertemplate:o.hovertemplate,hovertemplateLabels:m,eventData:[i.node]},{container:r._hoverlayer.node(),outerContainer:r._paper.node(),gd:t});h(y,.85),p(y)}}},unhover:function(e,i,o){!1!==t._fullLayout.hovermode&&(n.select(e).call(m,i,o),"skip"!==i.node.trace.node.hoverinfo&&(i.node.fullData=i.node.trace,t.emit("plotly_unhover",{event:n.event,points:[i.node]})),a.loneUnhover(r._hoverlayer.node()))},select:function(e,r,i){var o=r.node;o.originalEvent=n.event,t._hoverdata=[o],n.select(e).call(m,r,i),a.click(t,{target:!0})}}})}},{"../../components/color":580,"../../components/fx":619,"../../lib":703,"./constants":1066,"./render":1070,d3:157}],1070:[function(t,e,r){"use strict";var n=t("./constants"),i=t("d3"),a=t("tinycolor2"),o=t("../../components/color"),s=t("../../components/drawing"),l=t("@plotly/d3-sankey"),c=t("d3-sankey-circular"),u=t("d3-force"),f=t("../../lib"),h=t("../../lib/gup"),p=h.keyFun,d=h.repeat,g=h.unwrap,v=t("d3-interpolate").interpolateNumber,m=t("../../registry");function y(){var t=.5;return function(e){if(e.link.circular)return r=e.link,n=r.width/2,i=r.circularPathData,"top"===r.circularLinkType?"M "+i.targetX+" "+(i.targetY+n)+" L"+i.rightInnerExtent+" "+(i.targetY+n)+"A"+(i.rightLargeArcRadius+n)+" "+(i.rightSmallArcRadius+n)+" 0 0 1 "+(i.rightFullExtent-n)+" "+(i.targetY-i.rightSmallArcRadius)+"L"+(i.rightFullExtent-n)+" "+i.verticalRightInnerExtent+"A"+(i.rightLargeArcRadius+n)+" 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"+(i.sourceY+n)+"L"+i.leftInnerExtent+" "+(i.sourceY+n)+"A"+(i.leftLargeArcRadius-n)+" "+(i.leftSmallArcRadius-n)+" 0 0 1 "+(i.leftFullExtent-n)+" "+(i.sourceY+i.leftSmallArcRadius)+"L"+(i.leftFullExtent-n)+" "+i.verticalLeftInnerExtent+"A"+(i.leftLargeArcRadius-n)+" "+(i.leftLargeArcRadius-n)+" 0 0 1 "+i.leftInnerExtent+" "+(i.verticalFullExtent-n)+"L"+i.rightInnerExtent+" "+(i.verticalFullExtent-n)+"A"+(i.rightLargeArcRadius-n)+" "+(i.rightLargeArcRadius-n)+" 0 0 1 "+(i.rightFullExtent+n)+" "+i.verticalRightInnerExtent+"L"+(i.rightFullExtent+n)+" "+(i.targetY+i.rightSmallArcRadius)+"A"+(i.rightLargeArcRadius-n)+" "+(i.rightSmallArcRadius-n)+" 0 0 1 "+i.rightInnerExtent+" "+(i.targetY+n)+"L"+i.targetX+" "+(i.targetY+n)+"Z";var r,n,i,a=e.link.source.x1,o=e.link.target.x0,s=v(a,o),l=s(t),c=s(1-t),u=e.link.y0-e.link.width/2,f=e.link.y0+e.link.width/2,h=e.link.y1-e.link.width/2,p=e.link.y1+e.link.width/2;return"M"+a+","+u+"C"+l+","+u+" "+c+","+h+" "+o+","+h+"L"+o+","+p+"C"+c+","+p+" 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e,r,n,i=0,a=t.length;for(t.sort(function(t,e){return t.y0-e.y0}),n=0;n<a;++n)(e=t[n]).y0>=i||(r=i-e.y0)>1e-6&&(e.y0+=r,e.y1+=r),i=e.y1+p})}(function(t){var e,r,n=t.map(function(t,e){return{x0:t.x0,index:e}}).sort(function(t,e){return t.x0-e.x0}),i=[],a=-1,o=-1/0;for(_=0;_<n.length;_++){var s=t[n[_].index];s.x0>o+d&&(a+=1,e=s.x0),o=s.x0,i[a]||(i[a]=[]),i[a].push(s),r=e-s.x0,s.x0+=r,s.x1+=r}return i}(y=T.nodes)),i.update(T)}return{circular:b,key:r,trace:s,guid:f.randstr(),horizontal:h,width:v,height:m,nodePad:s.node.pad,nodeLineColor:s.node.line.color,nodeLineWidth:s.node.line.width,linkLineColor:s.link.line.color,linkLineWidth:s.link.line.width,valueFormat:s.valueformat,valueSuffix:s.valuesuffix,textFont:s.textfont,translateX:u.x[0]*t.width+t.margin.l,translateY:t.height-u.y[1]*t.height+t.margin.t,dragParallel:h?m:v,dragPerpendicular:h?v:m,arrangement:s.arrangement,sankey:i,graph:T,forceLayouts:{},interactionState:{dragInProgress:!1,hovered:!1}}}.bind(null,u)),_=e.selectAll("."+n.cn.sankey).data(b,p);_.exit().remove(),_.enter().append("g").classed(n.cn.sankey,!0).style("box-sizing","content-box").style("position","absolute").style("left",0).style("shape-rendering","geometricPrecision").style("pointer-events","auto").attr("transform",T),_.each(function(e,r){t._fullData[r]._sankey=e;var n="bgsankey-"+e.trace.uid+"-"+r;f.ensureSingle(t._fullLayout._draggers,"rect",n),t._fullData[r]._bgRect=i.select("."+n),t._fullData[r]._bgRect.style("pointer-events","all").attr("width",e.width).attr("height",e.height).attr("x",e.translateX).attr("y",e.translateY).classed("bgsankey",!0).style({fill:"transparent","stroke-width":0})}),_.transition().ease(n.ease).duration(n.duration).attr("transform",T);var I=_.selectAll("."+n.cn.sankeyLinks).data(d,p);I.enter().append("g").classed(n.cn.sankeyLinks,!0).style("fill","none");var D=I.selectAll("."+n.cn.sankeyLink).data(function(t){return t.graph.links.filter(function(t){return t.value}).map(function(t,e,r){var n=a(e.color),i=e.source.label+"|"+e.target.label+"__"+r;return e.trace=t.trace,e.curveNumber=t.trace.index,{circular:t.circular,key:i,traceId:t.key,pointNumber:e.pointNumber,link:e,tinyColorHue:o.tinyRGB(n),tinyColorAlpha:n.getAlpha(),linkPath:y,linkLineColor:t.linkLineColor,linkLineWidth:t.linkLineWidth,valueFormat:t.valueFormat,valueSuffix:t.valueSuffix,sankey:t.sankey,parent:t,interactionState:t.interactionState,flow:e.flow}}.bind(null,t))},p);D.enter().append("path").classed(n.cn.sankeyLink,!0).call(z,_,h.linkEvents),D.style("stroke",function(t){return k(t)?o.tinyRGB(a(t.linkLineColor)):t.tinyColorHue}).style("stroke-opacity",function(t){return k(t)?o.opacity(t.linkLineColor):t.tinyColorAlpha}).style("fill",function(t){return t.tinyColorHue}).style("fill-opacity",function(t){return t.tinyColorAlpha}).style("stroke-width",function(t){return k(t)?t.linkLineWidth:1}).attr("d",y()),D.style("opacity",function(){return t._context.staticPlot||v||m?1:0}).transition().ease(n.ease).duration(n.duration).style("opacity",1),D.exit().transition().ease(n.ease).duration(n.duration).style("opacity",0).remove();var P=_.selectAll("."+n.cn.sankeyNodeSet).data(d,p);P.enter().append("g").classed(n.cn.sankeyNodeSet,!0),P.style("cursor",function(t){switch(t.arrangement){case"fixed":return"default";case"perpendicular":return"ns-resize";default:return"move"}});var R=P.selectAll("."+n.cn.sankeyNode).data(function(t){var e=t.graph.nodes;return function(t){var e,r=[];for(e=0;e<t.length;e++)t[e].originalX=(t[e].x0+t[e].x1)/2,t[e].originalY=(t[e].y0+t[e].y1)/2,-1===r.indexOf(t[e].originalX)&&r.push(t[e].originalX);for(r.sort(function(t,e){return t-e}),e=0;e<t.length;e++)t[e].originalLayerIndex=r.indexOf(t[e].originalX),t[e].originalLayer=t[e].originalLayerIndex/(r.length-1)}(e),e.map(function(t,e){var r=a(e.color),i=n.nodePadAcross,s=t.nodePad/2;e.dx=e.x1-e.x0,e.dy=e.y1-e.y0;var l=e.dx,c=Math.max(.5,e.dy),u="node_"+e.pointNumber;return e.group&&(u=f.randstr()),e.trace=t.trace,e.curveNumber=t.trace.index,{index:e.pointNumber,key:u,partOfGroup:e.partOfGroup||!1,group:e.group,traceId:t.key,trace:t.trace,node:e,nodePad:t.nodePad,nodeLineColor:t.nodeLineColor,nodeLineWidth:t.nodeLineWidth,textFont:t.textFont,size:t.horizontal?t.height:t.width,visibleWidth:Math.ceil(l),visibleHeight:c,zoneX:-i,zoneY:-s,zoneWidth:l+2*i,zoneHeight:c+2*s,labelY:t.horizontal?e.dy/2+1:e.dx/2+1,left:1===e.originalLayer,sizeAcross:t.width,forceLayouts:t.forceLayouts,horizontal:t.horizontal,darkBackground:r.getBrightness()<=128,tinyColorHue:o.tinyRGB(r),tinyColorAlpha:r.getAlpha(),valueFormat:t.valueFormat,valueSuffix:t.valueSuffix,sankey:t.sankey,graph:t.graph,arrangement:t.arrangement,uniqueNodeLabelPathId:[t.guid,t.key,u].join("_"),interactionState:t.interactionState,figure:t}}.bind(null,t))},p);R.enter().append("g").classed(n.cn.sankeyNode,!0).call(x).style("opacity",function(e){return!t._context.staticPlot&&!v||e.partOfGroup?0:1}),R.call(z,_,h.nodeEvents).call(O,D,h,t),R.transition().ease(n.ease).duration(n.duration).call(x).style("opacity",function(t){return 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N=R.selectAll("."+n.cn.nodeCentered).data(d);N.enter().append("g").classed(n.cn.nodeCentered,!0).attr("transform",A),N.transition().ease(n.ease).duration(n.duration).attr("transform",A);var j=N.selectAll("."+n.cn.nodeLabelGuide).data(d);j.enter().append("path").classed(n.cn.nodeLabelGuide,!0).attr("id",function(t){return t.uniqueNodeLabelPathId}).attr("d",M).attr("transform",S),j.transition().ease(n.ease).duration(n.duration).attr("d",M).attr("transform",S);var V=N.selectAll("."+n.cn.nodeLabel).data(d);V.enter().append("text").classed(n.cn.nodeLabel,!0).attr("transform",E).style("user-select","none").style("cursor","default").style("fill","black"),V.style("text-shadow",function(t){return t.horizontal?"-1px 1px 1px #fff, 1px 1px 1px #fff, 1px -1px 1px #fff, -1px -1px 1px #fff":"none"}).each(function(t){s.font(V,t.textFont)}),V.transition().ease(n.ease).duration(n.duration).attr("transform",E);var U=V.selectAll("."+n.cn.nodeLabelTextPath).data(d);U.enter().append("textPath").classed(n.cn.nodeLabelTextPath,!0).attr("alignment-baseline","middle").attr("xlink:href",function(t){return"#"+t.uniqueNodeLabelPathId}).attr("startOffset",L).style("fill",C),U.text(function(t){return t.horizontal||t.node.dy>5?t.node.label:""}).attr("text-anchor",function(t){return t.horizontal&&t.left?"end":"start"}),U.transition().ease(n.ease).duration(n.duration).attr("startOffset",L).style("fill",C)}},{"../../components/color":580,"../../components/drawing":601,"../../lib":703,"../../lib/gup":701,"../../registry":831,"./constants":1066,"@plotly/d3-sankey":51,d3:157,"d3-force":149,"d3-interpolate":151,"d3-sankey-circular":154,tinycolor2:524}],1071:[function(t,e,r){"use strict";e.exports=function(t,e){for(var r=[],n=t.cd[0].trace,i=n._sankey.graph.nodes,a=0;a<i.length;a++){var o=i[a];if(!o.partOfGroup){var s=[(o.x0+o.x1)/2,(o.y0+o.y1)/2];"v"===n.orientation&&s.reverse(),e&&e.contains(s,!1,a,t)&&r.push({pointNumber:o.pointNumber})}}return r}},{}],1072:[function(t,e,r){"use strict";var n=t("../../lib");e.exports=function(t,e){for(var r=0;r<t.length;r++)t[r].i=r;n.mergeArray(e.text,t,"tx"),n.mergeArray(e.hovertext,t,"htx"),n.mergeArray(e.customdata,t,"data"),n.mergeArray(e.textposition,t,"tp"),e.textfont&&(n.mergeArray(e.textfont.size,t,"ts"),n.mergeArray(e.textfont.color,t,"tc"),n.mergeArray(e.textfont.family,t,"tf"));var i=e.marker;if(i){n.mergeArray(i.size,t,"ms"),n.mergeArray(i.opacity,t,"mo"),n.mergeArray(i.symbol,t,"mx"),n.mergeArray(i.color,t,"mc");var a=i.line;i.line&&(n.mergeArray(a.color,t,"mlc"),n.mergeArray(a.width,t,"mlw"));var o=i.gradient;o&&"none"!==o.type&&(n.mergeArray(o.type,t,"mgt"),n.mergeArray(o.color,t,"mgc"))}}},{"../../lib":703}],1073:[function(t,e,r){"use strict";var n=t("../../components/fx/hovertemplate_attributes"),i=t("../../components/colorscale/attributes"),a=t("../../plots/font_attributes"),o=t("../../components/drawing/attributes").dash,s=t("../../components/drawing"),l=t("./constants"),c=t("../../lib/extend").extendFlat;e.exports={x:{valType:"data_array",editType:"calc+clearAxisTypes",anim:!0},x0:{valType:"any",dflt:0,editType:"calc+clearAxisTypes",anim:!0},dx:{valType:"number",dflt:1,editType:"calc",anim:!0},y:{valType:"data_array",editType:"calc+clearAxisTypes",anim:!0},y0:{valType:"any",dflt:0,editType:"calc+clearAxisTypes",anim:!0},dy:{valType:"number",dflt:1,editType:"calc",anim:!0},stackgroup:{valType:"string",dflt:"",editType:"calc"},orientation:{valType:"enumerated",values:["v","h"],editType:"calc"},groupnorm:{valType:"enumerated",values:["","fraction","percent"],dflt:"",editType:"calc"},stackgaps:{valType:"enumerated",values:["infer zero","interpolate"],dflt:"infer 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y={padded:!0},x={padded:!0};l&&(y.ppad=x.ppad=l);var b=c<2||i[0]!==i[c-1]||o[0]!==o[c-1];b&&("tozerox"===m||"tonextx"===m&&(p||"h"===v))?y.tozero=!0:(e.error_y||{}).visible||"tonexty"!==m&&"tozeroy"!==m&&(s.hasMarkers(e)||s.hasText(e))||(y.padded=!1,y.ppad=0),b&&("tozeroy"===m||"tonexty"===m&&(p||"v"===v))?x.tozero=!0:"tonextx"!==m&&"tozerox"!==m||(x.padded=!1),f&&(e._extremes[f]=a.findExtremes(r,i,y)),h&&(e._extremes[h]=a.findExtremes(n,o,x))}function h(t,e){if(s.hasMarkers(t)){var r,n=t.marker,o=1.6*(t.marker.sizeref||1);if(r="area"===t.marker.sizemode?function(t){return Math.max(Math.sqrt((t||0)/o),3)}:function(t){return Math.max((t||0)/o,3)},i.isArrayOrTypedArray(n.size)){var l={type:"linear"};a.setConvert(l);for(var c=l.makeCalcdata(t.marker,"size"),u=new Array(e),f=0;f<e;f++)u[f]=r(c[f]);return u}return r(n.size)}}function p(t,e){var r=d(e),n=t._firstScatter;n[r]||(n[r]=e.uid)}function d(t){var e=t.stackgroup;return t.xaxis+t.yaxis+t.type+(e?"-"+e:"")}function g(t,e,r,n){var i=t.stackgroup;if(i){var a=e._scatterStackOpts[r._id+n._id][i],o="v"===a.orientation?n:r;return"linear"===o.type||"log"===o.type?a:void 0}}e.exports={calc:function(t,e){var r,s,d,v,m,y,x=t._fullLayout,b=a.getFromId(t,e.xaxis||"x"),_=a.getFromId(t,e.yaxis||"y"),w=b.makeCalcdata(e,"x"),k=_.makeCalcdata(e,"y"),T=e._length,A=new Array(T),M=e.ids,S=g(e,x,b,_),E=!1;p(x,e);var C,L="x",z="y";for(S?(i.pushUnique(S.traceIndices,e._expandedIndex),(r="v"===S.orientation)?(z="s",C="x"):(L="s",C="y"),m="interpolate"===S.stackgaps):f(t,e,b,_,w,k,h(e,T)),s=0;s<T;s++){var O=A[s]={},I=n(w[s]),D=n(k[s]);I&&D?(O[L]=w[s],O[z]=k[s]):S&&(r?I:D)?(O[C]=r?w[s]:k[s],O.gap=!0,m?(O.s=o,E=!0):O.s=0):O[L]=O[z]=o,M&&(O.id=String(M[s]))}if(c(A,e),l(t,e),u(A,e),S){for(s=0;s<A.length;)A[s][C]===o?A.splice(s,1):s++;if(i.sort(A,function(t,e){return t[C]-e[C]||t.i-e.i}),E){for(s=0;s<A.length-1&&A[s].gap;)s++;for((y=A[s].s)||(y=A[s].s=0),d=0;d<s;d++)A[d].s=y;for(v=A.length-1;v>s&&A[v].gap;)v--;for(y=A[v].s,d=A.length-1;d>v;d--)A[d].s=y;for(;s<v;)if(A[++s].gap){for(d=s+1;A[d].gap;)d++;for(var P=A[s-1][C],R=A[s-1].s,F=(A[d].s-R)/(A[d][C]-P);s<d;)A[s].s=R+(A[s][C]-P)*F,s++}}}return A},calcMarkerSize:h,calcAxisExpansion:f,setFirstScatter:p,getStackOpts:g}},{"../../constants/numerical":680,"../../lib":703,"../../plots/cartesian/axes":751,"./arrays_to_calcdata":1072,"./calc_selection":1075,"./colorscale_calc":1076,"./subtypes":1096,"fast-isnumeric":224}],1075:[function(t,e,r){"use strict";var n=t("../../lib");e.exports=function(t,e){n.isArrayOrTypedArray(e.selectedpoints)&&n.tagSelected(t,e)}},{"../../lib":703}],1076:[function(t,e,r){"use strict";var n=t("../../components/colorscale/helpers").hasColorscale,i=t("../../components/colorscale/calc"),a=t("./subtypes");e.exports=function(t,e){a.hasLines(e)&&n(e,"line")&&i(t,e,{vals:e.line.color,containerStr:"line",cLetter:"c"}),a.hasMarkers(e)&&(n(e,"marker")&&i(t,e,{vals:e.marker.color,containerStr:"marker",cLetter:"c"}),n(e,"marker.line")&&i(t,e,{vals:e.marker.line.color,containerStr:"marker.line",cLetter:"c"}))}},{"../../components/colorscale/calc":588,"../../components/colorscale/helpers":591,"./subtypes":1096}],1077:[function(t,e,r){"use strict";e.exports={PTS_LINESONLY:20,minTolerance:.2,toleranceGrowth:10,maxScreensAway:20,eventDataKeys:[]}},{}],1078:[function(t,e,r){"use strict";var n=t("./calc");function i(t,e,r,n,i,a,o){i[n]=!0;var s={i:null,gap:!0,s:0};if(s[o]=r,t.splice(e,0,s),e&&r===t[e-1][o]){var l=t[e-1];s.s=l.s,s.i=l.i,s.gap=l.gap}else a&&(s.s=function(t,e,r,n){var i=t[e-1],a=t[e+1];return a?i?i.s+(a.s-i.s)*(r-i[n])/(a[n]-i[n]):a.s:i.s}(t,e,r,o));e||(t[0].t=t[1].t,t[0].trace=t[1].trace,delete t[1].t,delete t[1].trace)}e.exports=function(t,e){var r=e.xaxis,a=e.yaxis,o=r._id+a._id,s=t._fullLayout._scatterStackOpts[o];if(s){var l,c,u,f,h,p,d,g,v,m,y,x,b,_,w,k=t.calcdata;for(var T in s){var A=(m=s[T]).traceIndices;if(A.length){for(y="interpolate"===m.stackgaps,x=m.groupnorm,"v"===m.orientation?(b="x",_="y"):(b="y",_="x"),w=new Array(A.length),l=0;l<w.length;l++)w[l]=!1;p=k[A[0]];var M=new Array(p.length);for(l=0;l<p.length;l++)M[l]=p[l][b];for(l=1;l<A.length;l++){for(h=k[A[l]],c=u=0;c<h.length;c++){for(d=h[c][b];d>M[u]&&u<M.length;u++)i(h,c,M[u],l,w,y,b),c++;if(d!==M[u]){for(f=0;f<l;f++)i(k[A[f]],u,d,f,w,y,b);M.splice(u,0,d)}u++}for(;u<M.length;u++)i(h,c,M[u],l,w,y,b),c++}var S=M.length;for(c=0;c<p.length;c++){for(g=p[c][_]=p[c].s,l=1;l<A.length;l++)(h=k[A[l]])[0].trace._rawLength=h[0].trace._length,h[0].trace._length=S,g+=h[c].s,h[c][_]=g;if(x)for(v=("fraction"===x?g:g/100)||1,l=0;l<A.length;l++){var E=k[A[l]][c];E[_]/=v,E.sNorm=E.s/v}}for(l=0;l<A.length;l++){var C=(h=k[A[l]])[0].trace,L=n.calcMarkerSize(C,C._rawLength),z=Array.isArray(L);if(L&&w[l]||z){var O=L;for(L=new Array(S),c=0;c<S;c++)L[c]=h[c].gap?0:z?O[h[c].i]:O}var I=new Array(S),D=new Array(S);for(c=0;c<S;c++)I[c]=h[c].x,D[c]=h[c].y;n.calcAxisExpansion(t,C,r,a,I,D,L),h[0].t.orientation=m.orientation}}}}}},{"./calc":1074}],1079:[function(t,e,r){"use strict";e.exports=function(t){for(var e=0;e<t.length;e++){var r=t[e];if("scatter"===r.type){var n=r.fill;if("none"!==n&&"toself"!==n&&(r.opacity=void 0,"tonexty"===n||"tonextx"===n))for(var i=e-1;i>=0;i--){var a=t[i];if("scatter"===a.type&&a.xaxis===r.xaxis&&a.yaxis===r.yaxis){a.opacity=void 0;break}}}}}},{}],1080:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("../../registry"),a=t("./attributes"),o=t("./constants"),s=t("./subtypes"),l=t("./xy_defaults"),c=t("./stack_defaults"),u=t("./marker_defaults"),f=t("./line_defaults"),h=t("./line_shape_defaults"),p=t("./text_defaults"),d=t("./fillcolor_defaults");e.exports=function(t,e,r,g){function v(r,i){return n.coerce(t,e,a,r,i)}var m=l(t,e,g,v);if(m||(e.visible=!1),e.visible){var y=c(t,e,g,v),x=!y&&m<o.PTS_LINESONLY?"lines+markers":"lines";v("text"),v("hovertext"),v("mode",x),s.hasLines(e)&&(f(t,e,r,g,v),h(t,e,v),v("connectgaps"),v("line.simplify")),s.hasMarkers(e)&&u(t,e,r,g,v,{gradient:!0}),s.hasText(e)&&p(t,e,g,v);var b=[];(s.hasMarkers(e)||s.hasText(e))&&(v("cliponaxis"),v("marker.maxdisplayed"),b.push("points")),v("fill",y?y.fillDflt:"none"),"none"!==e.fill&&(d(t,e,r,v),s.hasLines(e)||h(t,e,v));var 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n=t("../../components/color"),i=t("./subtypes");e.exports=function(t,e){var r,a;if("lines"===t.mode)return(r=t.line.color)&&n.opacity(r)?r:t.fillcolor;if("none"===t.mode)return t.fill?t.fillcolor:"";var o=e.mcc||(t.marker||{}).color,s=e.mlcc||((t.marker||{}).line||{}).color;return(a=o&&n.opacity(o)?o:s&&n.opacity(s)&&(e.mlw||((t.marker||{}).line||{}).width)?s:"")?n.opacity(a)<.3?n.addOpacity(a,.3):a:(r=(t.line||{}).color)&&n.opacity(r)&&i.hasLines(t)&&t.line.width?r:t.fillcolor}},{"../../components/color":580,"./subtypes":1096}],1083:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("../../components/fx"),a=t("../../registry"),o=t("./get_trace_color"),s=t("../../components/color"),l=n.fillText;e.exports=function(t,e,r,c){var u=t.cd,f=u[0].trace,h=t.xa,p=t.ya,d=h.c2p(e),g=p.c2p(r),v=[d,g],m=f.hoveron||"",y=-1!==f.mode.indexOf("markers")?3:.5;if(-1!==m.indexOf("points")){var x=function(t){var e=Math.max(y,t.mrc||0),r=h.c2p(t.x)-d,n=p.c2p(t.y)-g;return 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n=t("gl-line3d"),i=t("gl-scatter3d"),a=t("gl-error3d"),o=t("gl-mesh3d"),s=t("delaunay-triangulate"),l=t("../../lib"),c=t("../../lib/str2rgbarray"),u=t("../../lib/gl_format_color").formatColor,f=t("../scatter/make_bubble_size_func"),h=t("../../constants/gl3d_dashes"),p=t("../../constants/gl3d_markers"),d=t("./calc_errors");function g(t,e){this.scene=t,this.uid=e,this.linePlot=null,this.scatterPlot=null,this.errorBars=null,this.textMarkers=null,this.delaunayMesh=null,this.color=null,this.mode="",this.dataPoints=[],this.axesBounds=[[-1/0,-1/0,-1/0],[1/0,1/0,1/0]],this.textLabels=null,this.data=null}var v=g.prototype;function m(t){return null==t?0:t.indexOf("left")>-1?-1:t.indexOf("right")>-1?1:0}function y(t){return null==t?0:t.indexOf("top")>-1?-1:t.indexOf("bottom")>-1?1:0}function x(t,e){return e(4*t)}function b(t){return p[t]}function _(t,e,r,n,i){var a=null;if(l.isArrayOrTypedArray(t)){a=[];for(var o=0;o<e;o++)void 0===t[o]?a[o]=n:a[o]=r(t[o],i)}else a=r(t,l.identity);return 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d=t.opacity;if(t.marker&&t.marker.opacity&&(d*=t.marker.opacity),r={gl:this.scene.glplot.gl,position:p.position,color:p.scatterColor,size:p.scatterSize,glyph:p.scatterMarker,opacity:d,orthographic:!0,lineWidth:p.scatterLineWidth,lineColor:p.scatterLineColor,project:p.project,projectScale:p.projectScale,projectOpacity:p.projectOpacity},-1!==this.mode.indexOf("markers")?this.scatterPlot?this.scatterPlot.update(r):(this.scatterPlot=i(r),this.scatterPlot._trace=this,this.scatterPlot.highlightScale=1,this.scene.glplot.add(this.scatterPlot)):this.scatterPlot&&(this.scene.glplot.remove(this.scatterPlot),this.scatterPlot.dispose(),this.scatterPlot=null),c={gl:this.scene.glplot.gl,position:p.position,glyph:p.text,color:p.textColor,size:p.textSize,angle:p.textAngle,alignment:p.textOffset,font:p.textFont,orthographic:!0,lineWidth:0,project:!1,opacity:t.opacity},this.textLabels=t.hovertext||t.text,-1!==this.mode.indexOf("text")?this.textMarkers?this.textMarkers.update(c):(this.textMarkers=i(c),this.textMarkers._trace=this,this.textMarkers.highlightScale=1,this.scene.glplot.add(this.textMarkers)):this.textMarkers&&(this.scene.glplot.remove(this.textMarkers),this.textMarkers.dispose(),this.textMarkers=null),l={gl:this.scene.glplot.gl,position:p.position,color:p.errorColor,error:p.errorBounds,lineWidth:p.errorLineWidth,capSize:p.errorCapSize,opacity:t.opacity},this.errorBars?p.errorBounds?this.errorBars.update(l):(this.scene.glplot.remove(this.errorBars),this.errorBars.dispose(),this.errorBars=null):p.errorBounds&&(this.errorBars=a(l),this.errorBars._trace=this,this.scene.glplot.add(this.errorBars)),p.delaunayAxis>=0){var g=function(t,e,r){var n,i=(r+1)%3,a=(r+2)%3,o=[],l=[];for(n=0;n<t.length;++n){var c=t[n];!isNaN(c[i])&&isFinite(c[i])&&!isNaN(c[a])&&isFinite(c[a])&&(o.push([c[i],c[a]]),l.push(n))}var u=s(o);for(n=0;n<u.length;++n)for(var f=u[n],h=0;h<f.length;++h)f[h]=l[f[h]];return{positions:t,cells:u,meshColor:e}}(p.position,p.delaunayColor,p.delaunayAxis);g.opacity=t.opacity,this.delaunayMesh?this.delaunayMesh.update(g):(g.gl=u,this.delaunayMesh=o(g),this.delaunayMesh._trace=this,this.scene.glplot.add(this.delaunayMesh))}else 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i.tickText(r,r.c2l(t),"hover").text+"\xb0"}c?p.push(e.loc):u&&f?p.push("("+d(e.lonlat[0])+", "+d(e.lonlat[1])+")"):u?p.push(n.lon+d(e.lonlat[0])):f&&p.push(n.lat+d(e.lonlat[1]));h&&s(e,t,p);return p.join("<br>")}(u,v,p.mockAxis,c[0].t.labels),t.hovertemplate=u.hovertemplate,[t]}}},{"../../components/fx":619,"../../constants/numerical":680,"../../lib":703,"../../plots/cartesian/axes":751,"../scatter/get_trace_color":1082,"./attributes":1112}],1117:[function(t,e,r){"use 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S(t,e,r){var n=t._extremes[e._id],i=h(e,r._bnds,{padded:!0});n.min=n.min.concat(i.min),n.max=n.max.concat(i.max)}function E(t,e){var r=e._scene,n={count:0,dirty:!0,lineOptions:[],fillOptions:[],markerOptions:[],markerSelectedOptions:[],markerUnselectedOptions:[],errorXOptions:[],errorYOptions:[],textOptions:[],textSelectedOptions:[],textUnselectedOptions:[],selectBatch:[],unselectBatch:[]},i={fill2d:!1,scatter2d:!1,error2d:!1,line2d:!1,glText:!1,select2d:!1};return e._scene||((r=e._scene={}).init=function(){c.extendFlat(r,i,n)},r.init(),r.update=function(t){var e=c.repeat(t,r.count);if(r.fill2d&&r.fill2d.update(e),r.scatter2d&&r.scatter2d.update(e),r.line2d&&r.line2d.update(e),r.error2d&&r.error2d.update(e.concat(e)),r.select2d&&r.select2d.update(e),r.glText)for(var n=0;n<r.count;n++)r.glText[n].update(t)},r.draw=function(){for(var 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n=t._size,i=t.width,a=t.height;return[n.l+e.domain[0]*n.w,n.b+r.domain[0]*n.h,i-n.r-(1-e.domain[1])*n.w,a-n.t-(1-r.domain[1])*n.h]}(f,p,g),range:[(p._rl||p.range)[0],(g._rl||g.range)[0],(p._rl||p.range)[1],(g._rl||g.range)[1]]},j=c.repeat(N,h.count);h.fill2d&&h.fill2d.update(j),h.line2d&&h.line2d.update(j),h.error2d&&h.error2d.update(j.concat(j)),h.scatter2d&&h.scatter2d.update(j),h.select2d&&h.select2d.update(j),h.glText&&h.glText.forEach(function(t){t.update(N)})}else h.init()}},hoverPoints:function(t,e,r,n){var i,a,o,s,l,c,u,f,h,p=t.cd,d=p[0].t,g=p[0].trace,v=t.xa,m=t.ya,y=d.x,x=d.y,b=v.c2p(e),_=m.c2p(r),w=t.distance;if(d.tree){var k=v.p2c(b-w),T=v.p2c(b+w),A=m.p2c(_-w),M=m.p2c(_+w);i="x"===n?d.tree.range(Math.min(k,T),Math.min(m._rl[0],m._rl[1]),Math.max(k,T),Math.max(m._rl[0],m._rl[1])):d.tree.range(Math.min(k,T),Math.min(A,M),Math.max(k,T),Math.max(A,M))}else{if(!d.ids)return[t];i=d.ids}var S=w;if("x"===n)for(l=0;l<i.length;l++)o=y[i[l]],(c=Math.abs(v.c2p(o)-b))<S&&(S=c,u=m.c2p(x[i[l]])-_,h=Math.sqrt(c*c+u*u),a=i[l]);else for(l=0;l<i.length;l++)o=y[i[l]],s=x[i[l]],c=v.c2p(o)-b,u=m.c2p(s)-_,(f=Math.sqrt(c*c+u*u))<S&&(S=h=f,a=i[l]);return t.index=a,t.distance=S,t.dxy=h,void 0===a?[t]:(C(t,y,x,g),[t])},selectPoints:function(t,e){var r=t.cd,n=[],i=r[0].trace,a=r[0].t,o=i._length,s=a.x,l=a.y,c=a._scene,u=a.index;if(!c)return n;var f=d.hasText(i),h=d.hasMarkers(i),p=!h&&!f;if(!0!==i.visible||p)return n;var g=[],v=[];if(!1!==e&&!e.degenerate)for(var m=0;m<o;m++)e.contains([a.xpx[m],a.ypx[m]],!1,m,t)?(g.push(m),n.push({pointNumber:m,x:s[m],y:l[m]})):v.push(m);if(h){var y=c.scatter2d;if(g.length||v.length){if(!c.selectBatch[u].length&&!c.unselectBatch[u].length){var x=new Array(c.count);x[u]=c.markerUnselectedOptions[u],y.update.apply(y,x)}}else{var b=new Array(c.count);b[u]=c.markerOptions[u],y.update.apply(y,b)}}return 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n=t("../../components/fx/hovertemplate_attributes"),i=t("../scattergeo/attributes"),a=t("../scatter/attributes"),o=t("../../plots/mapbox/layout_attributes"),s=t("../../plots/attributes"),l=t("../../components/colorscale/attributes"),c=t("../../lib/extend").extendFlat,u=t("../../plot_api/edit_types").overrideAll,f=i.line,h=i.marker;e.exports=u({lon:i.lon,lat:i.lat,mode:c({},a.mode,{dflt:"markers"}),text:c({},a.text,{}),hovertext:c({},a.hovertext,{}),line:{color:f.color,width:f.width},connectgaps:a.connectgaps,marker:c({symbol:{valType:"string",dflt:"circle",arrayOk:!0},opacity:h.opacity,size:h.size,sizeref:h.sizeref,sizemin:h.sizemin,sizemode:h.sizemode},l("marker")),fill:i.fill,fillcolor:a.fillcolor,textfont:o.layers.symbol.textfont,textposition:o.layers.symbol.textposition,selected:{marker:a.selected.marker},unselected:{marker:a.unselected.marker},hoverinfo:c({},s.hoverinfo,{flags:["lon","lat","text","name"]}),hovertemplate:n()},"calc","nested")},{"../../components/colorscale/attributes":587,"../../components/fx/hovertemplate_attributes":618,"../../lib/extend":693,"../../plot_api/edit_types":734,"../../plots/attributes":748,"../../plots/mapbox/layout_attributes":808,"../scatter/attributes":1073,"../scattergeo/attributes":1112}],1127:[function(t,e,r){"use 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M;if((v||m)&&(e=o.calcTraceToLineCoords(t)),v&&(w.geojson=o.makePolygon(e),w.layout.visibility="visible",i.extendFlat(w.paint,{"fill-color":r.fillcolor})),m&&(k.geojson=o.makeLine(e),k.layout.visibility="visible",i.extendFlat(k.paint,{"line-width":r.line.width,"line-color":r.line.color,"line-opacity":r.opacity})),b){var S=function(t){var e,r,a,o,u=t[0].trace,f=u.marker,h=u.selectedpoints,p=i.isArrayOrTypedArray(f.color),d=i.isArrayOrTypedArray(f.size),v=i.isArrayOrTypedArray(f.opacity);function m(t){return u.opacity*t}p&&(r=s.hasColorscale(u,"marker")?s.makeColorScaleFuncFromTrace(f):i.identity);d&&(a=c(u));v&&(o=function(t){var e=n(t)?+i.constrain(t,0,1):0;return m(e)});var y,x=[];for(e=0;e<t.length;e++){var b=t[e],_=b.lonlat;if(!g(_)){var w={};r&&(w.mcc=b.mcc=r(b.mc)),a&&(w.mrc=b.mrc=a(b.ms)),o&&(w.mo=o(b.mo)),h&&(w.selected=b.selected||0),x.push({type:"Feature",geometry:{type:"Point",coordinates:_},properties:w})}}if(h)for(y=l.makeSelectedPointStyleFns(u),e=0;e<x.length;e++){var k=x[e].properties;y.selectedOpacityFn&&(k.mo=m(y.selectedOpacityFn(k))),y.selectedColorFn&&(k.mcc=y.selectedColorFn(k)),y.selectedSizeFn&&(k.mrc=y.selectedSizeFn(k))}return{geojson:{type:"FeatureCollection",features:x},mcc:p||y&&y.selectedColorFn?{type:"identity",property:"mcc"}:f.color,mrc:d||y&&y.selectedSizeFn?{type:"identity",property:"mrc"}:(T=f.size,T/2),mo:v||y&&y.selectedOpacityFn?{type:"identity",property:"mo"}:m(f.opacity)};var T}(t);T.geojson=S.geojson,T.layout.visibility="visible",i.extendFlat(T.paint,{"circle-color":S.mcc,"circle-radius":S.mrc,"circle-opacity":S.mo})}if((_||x)&&(A.geojson=function(t){for(var e=t[0].trace,r=(e.marker||{}).symbol,n=e.text,i="circle"!==r?p(r):d,a=u.hasText(e)?p(n):d,o=[],s=0;s<t.length;s++){var l=t[s];g(l.lonlat)||o.push({type:"Feature",geometry:{type:"Point",coordinates:l.lonlat},properties:{symbol:i(l.mx),text:a(l.tx)}})}return{type:"FeatureCollection",features:o}}(t),i.extendFlat(A.layout,{visibility:"visible","icon-image":"{symbol}-15","text-field":"{text}"}),_&&(i.extendFlat(A.layout,{"icon-size":r.marker.size/10}),i.extendFlat(A.paint,{"icon-opacity":r.opacity*r.marker.opacity,"icon-color":r.marker.color})),x)){var E=(r.marker||{}).size,C=f(r.textposition,E);i.extendFlat(A.layout,{"text-size":r.textfont.size,"text-anchor":C.anchor,"text-offset":C.offset}),i.extendFlat(A.paint,{"text-color":r.textfont.color,"text-opacity":r.opacity})}return M}},{"../../components/colorscale":592,"../../components/drawing":601,"../../constants/numerical":680,"../../lib":703,"../../lib/geojson_utils":697,"../../plots/mapbox/convert_text_opts":805,"../scatter/make_bubble_size_func":1089,"../scatter/subtypes":1096,"fast-isnumeric":224}],1128:[function(t,e,r){"use strict";var n=t("../../lib"),i=t("../scatter/subtypes"),a=t("../scatter/marker_defaults"),o=t("../scatter/line_defaults"),s=t("../scatter/text_defaults"),l=t("../scatter/fillcolor_defaults"),c=t("./attributes");e.exports=function(t,e,r,u){function f(r,i){return n.coerce(t,e,c,r,i)}if(function(t,e,r){var n=r("lon")||[],i=r("lat")||[],a=Math.min(n.length,i.length);return e._length=a,a}(0,e,f)){if(f("text"),f("hovertext"),f("hovertemplate"),f("mode"),i.hasLines(e)&&(o(t,e,r,u,f,{noDash:!0}),f("connectgaps")),i.hasMarkers(e)){a(t,e,r,u,f,{noLine:!0});var h=e.marker;"circle"!==h.symbol&&(n.isArrayOrTypedArray(h.size)&&(h.size=h.size[0]),n.isArrayOrTypedArray(h.color)&&(h.color=h.color[0]))}i.hasText(e)&&s(t,e,u,f,{noSelect:!0}),f("fill"),"none"!==e.fill&&l(t,e,r,f),n.coerceSelectionMarkerOpacity(e,f)}else e.visible=!1}},{"../../lib":703,"../scatter/fillcolor_defaults":1081,"../scatter/line_defaults":1085,"../scatter/marker_defaults":1091,"../scatter/subtypes":1096,"../scatter/text_defaults":1097,"./attributes":1126}],1129:[function(t,e,r){"use strict";e.exports=function(t,e){return t.lon=e.lon,t.lat=e.lat,t}},{}],1130:[function(t,e,r){"use strict";var n=t("../../components/fx"),i=t("../../lib"),a=t("../scatter/get_trace_color"),o=i.fillText,s=t("../../constants/numerical").BADNUM;e.exports=function(t,e,r){var l=t.cd,c=l[0].trace,u=t.xa,f=t.ya,h=t.subplot,p=360*(e>=0?Math.floor((e+180)/360):Math.ceil((e-180)/360)),d=e-p;if(n.getClosest(l,function(t){var e=t.lonlat;if(e[0]===s)return 1/0;var n=i.modHalf(e[0],360),a=e[1],o=h.project([n,a]),l=o.x-u.c2p([d,a]),c=o.y-f.c2p([n,r]),p=Math.max(3,t.mrc||0);return Math.max(Math.sqrt(l*l+c*c)-p,1-3/p)},t),!1!==t.index){var g=l[t.index],v=g.lonlat,m=[i.modHalf(v[0],360)+p,v[1]],y=u.c2p(m),x=f.c2p(m),b=g.mrc||1;return 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c.extendFlat(e,X(t));else e.x0=e.x1=0;else e.x0=e.x1=0;var o=n.interpolate(e.rpx1,t.rpx1),s=n.interpolate(e.x0,t.x0),l=n.interpolate(e.x1,t.x1),u=n.interpolate(e.transform.scale,i.scale),f=n.interpolate(e.transform.rotate,i.rotate),h=0===i.rCenter?3:0===e.transform.rCenter?1/3:1,p=n.interpolate(e.transform.rCenter,i.rCenter);return function(t){var e=o(t),r=s(t),n=l(t),a=function(t){return p(Math.pow(t,h))}(t),c={pxmid:V(e,(r+n)/2),transform:{rCenter:a,x:i.x,y:i.y}},d={rpx1:o(t),translateX:H(c),translateY:q(c),transform:{scale:u(t),rotate:f(t),rCenter:a}};return d}}(t);return function(t){return _(e(t),x)}}):y.attr("transform",_(r,x))})}function x(t,e){var r;return e&&t.eachAfter(function(t){if(k(t)===e)return r=t.copy()}),r||t}function b(t){return""===t.data.data.pid}function _(t){return!t.parent}function w(t){return!t.children}function k(t){return t.data.data.id}function T(t,e,r){var n=t.datum(),i=(r||{}).isTransitioning;h(t,i||w(n)||b(n)?null:"pointer")}function A(t,e,r){var i=r[0],s=i.trace;"_hasHoverLabel"in s||(s._hasHoverLabel=!1),"_hasHoverEvent"in s||(s._hasHoverEvent=!1),t.on("mouseover",function(t){var r=e._fullLayout;if(!e._dragging&&!1!==r.hovermode){var a=e._fullData[s.index],l=t.data.data,u=l.i,f=function(t){return c.castOption(a,u,t)},h=f("hovertemplate"),p=o.castHoverinfo(a,r,u),d=r.separators;if(h||p&&"none"!==p&&"skip"!==p){var v=t.rInscribed,m=i.cx+t.pxmid[0]*(1-v),y=i.cy+t.pxmid[1]*(1-v),x={},b=[],_=[],w=function(t){return-1!==b.indexOf(t)};if(p&&(b="all"===p?a._module.attributes.hoverinfo.flags:p.split("+")),x.label=l.label,w("label")&&x.label&&_.push(x.label),l.hasOwnProperty("v")&&(x.value=l.v,x.valueLabel=g(x.value,d),w("value")&&_.push(x.valueLabel)),x.text=f("hovertext")||f("text"),w("text")){var k=x.text;c.isValidTextValue(k)&&_.push(k)}o.loneHover({trace:a,x0:m-v*t.rpx1,x1:m+v*t.rpx1,y:y,idealAlign:t.pxmid[0]<0?"left":"right",text:_.join("<br>"),name:h||w("name")?a.name:void 0,color:f("hoverlabel.bgcolor")||l.color,borderColor:f("hoverlabel.bordercolor"),fontFamily:f("hoverlabel.font.family"),fontSize:f("hoverlabel.font.size"),fontColor:f("hoverlabel.font.color"),nameLength:f("hoverlabel.namelength"),textAlign:f("hoverlabel.align"),hovertemplate:h,hovertemplateLabels:x,eventData:[M(t,a)]},{container:r._hoverlayer.node(),outerContainer:r._paper.node(),gd:e}),s._hasHoverLabel=!0}s._hasHoverEvent=!0,e.emit("plotly_hover",{points:[M(t,a)],event:n.event})}}),t.on("mouseout",function(t){var r=e._fullLayout,i=e._fullData[s.index],a=n.select(this).datum();s._hasHoverEvent&&(t.originalEvent=n.event,e.emit("plotly_unhover",{points:[M(a,i)],event:n.event}),s._hasHoverEvent=!1),s._hasHoverLabel&&(o.loneUnhover(r._hoverlayer.node()),s._hasHoverLabel=!1)}),t.on("click",function(t){var r=e._fullLayout,l=e._fullData[s.index];if(!1===u.triggerHandler(e,"plotly_sunburstclick",{points:[M(t,l)],event:n.event})||w(t)||b(t))r.hovermode&&(e._hoverdata=[M(t,l)],o.click(e,n.event));else if(!e._dragging&&!e._transitioning){a.call("_storeDirectGUIEdit",l,r._tracePreGUI[l.uid],{level:l.level});var c=i.hierarchy,f=k(t),h=_(t)?function(t,e){var r;return t.eachAfter(function(t){for(var n=t.children||[],i=0;i<n.length;i++)if(k(n[i])===e)return r=t.copy()}),r||t}(c,f):x(c,f),p={data:[{level:k(h)}],traces:[s.index]},d={frame:{redraw:!1,duration:m.CLICK_TRANSITION_TIME},transition:{duration:m.CLICK_TRANSITION_TIME,easing:m.CLICK_TRANSITION_EASING},mode:"immediate",fromcurrent:!0};o.loneUnhover(r._hoverlayer.node()),a.call("animate",e,p,d)}})}function M(t,e){var r=t.data.data,n={curveNumber:e.index,pointNumber:r.i,data:e._input,fullData:e};return p(n,e,r.i),n}e.exports=function(t,e,r,i){var a,o,s=t._fullLayout._sunburstlayer,l=!r,c=r&&r.duration>0;((a=s.selectAll("g.trace.sunburst").data(e,function(t){return t[0].trace.uid})).enter().append("g").classed("trace",!0).classed("sunburst",!0).attr("stroke-linejoin","round"),a.order(),c)?(i&&(o=i()),n.transition().duration(r.duration).ease(r.easing).each("end",function(){o&&o()}).each("interrupt",function(){o&&o()}).each(function(){s.selectAll("g.trace").each(function(e){y(t,e,this,r)})})):a.each(function(e){y(t,e,this,r)});l&&a.exit().remove()}},{"../../components/color":580,"../../components/drawing":601,"../../components/fx":619,"../../components/fx/helpers":615,"../../lib":703,"../../lib/events":692,"../../lib/setcursor":723,"../../lib/svg_text_utils":727,"../../registry":831,"../pie/helpers":1052,"../pie/plot":1056,"./constants":1162,"./style":1168,d3:157,"d3-hierarchy":150}],1168:[function(t,e,r){"use strict";var n=t("d3"),i=t("../../components/color"),a=t("../../lib");function o(t,e,r){var n=e.data.data,o=!e.children,s=n.i,l=a.castOption(r,s,"marker.line.color")||i.defaultLine,c=a.castOption(r,s,"marker.line.width")||0;t.style("stroke-width",c).call(i.fill,n.color).call(i.stroke,l).style("opacity",o?r.leaf.opacity:null)}e.exports={style:function(t){t._fullLayout._sunburstlayer.selectAll(".trace").each(function(t){var e=n.select(this),r=t[0].trace;e.style("opacity",r.opacity),e.selectAll("path.surface").each(function(t){n.select(this).call(o,t,r)})})},styleOne:o}},{"../../components/color":580,"../../lib":703,d3:157}],1169:[function(t,e,r){"use strict";var n=t("../../components/color"),i=t("../../components/colorscale/attributes"),a=t("../../components/fx/hovertemplate_attributes"),o=t("../../plots/attributes"),s=t("../../lib/extend").extendFlat,l=t("../../plot_api/edit_types").overrideAll;function c(t){return{show:{valType:"boolean",dflt:!1},start:{valType:"number",dflt:null,editType:"plot"},end:{valType:"number",dflt:null,editType:"plot"},size:{valType:"number",dflt:null,min:0,editType:"plot"},project:{x:{valType:"boolean",dflt:!1},y:{valType:"boolean",dflt:!1},z:{valType:"boolean",dflt:!1}},color:{valType:"color",dflt:n.defaultLine},usecolormap:{valType:"boolean",dflt:!1},width:{valType:"number",min:1,max:16,dflt:2},highlight:{valType:"boolean",dflt:!0},highlightcolor:{valType:"color",dflt:n.defaultLine},highlightwidth:{valType:"number",min:1,max:16,dflt:2}}}var u=e.exports=l(s({z:{valType:"data_array"},x:{valType:"data_array"},y:{valType:"data_array"},text:{valType:"string",dflt:"",arrayOk:!0},hovertext:{valType:"string",dflt:"",arrayOk:!0},hovertemplate:a(),connectgaps:{valType:"boolean",dflt:!1,editType:"calc"},surfacecolor:{valType:"data_array"}},i("",{colorAttr:"z or surfacecolor",showScaleDflt:!0,autoColorDflt:!1,editTypeOverride:"calc"}),{contours:{x:c(),y:c(),z:c()},hidesurface:{valType:"boolean",dflt:!1},lightposition:{x:{valType:"number",min:-1e5,max:1e5,dflt:10},y:{valType:"number",min:-1e5,max:1e5,dflt:1e4},z:{valType:"number",min:-1e5,max:1e5,dflt:0}},lighting:{ambient:{valType:"number",min:0,max:1,dflt:.8},diffuse:{valType:"number",min:0,max:1,dflt:.8},specular:{valType:"number",min:0,max:2,dflt:.05},roughness:{valType:"number",min:0,max:1,dflt:.5},fresnel:{valType:"number",min:0,max:5,dflt:.2}},opacity:{valType:"number",min:0,max:1,dflt:1},_deprecated:{zauto:s({},i.zauto,{}),zmin:s({},i.zmin,{}),zmax:s({},i.zmax,{})},hoverinfo:s({},o.hoverinfo)}),"calc","nested");u.x.editType=u.y.editType=u.z.editType="calc+clearAxisTypes",u.transforms=void 0},{"../../components/color":580,"../../components/colorscale/attributes":587,"../../components/fx/hovertemplate_attributes":618,"../../lib/extend":693,"../../plot_api/edit_types":734,"../../plots/attributes":748}],1170:[function(t,e,r){"use strict";var n=t("../../components/colorscale/calc");e.exports=function(t,e){e.surfacecolor?n(t,e,{vals:e.surfacecolor,containerStr:"",cLetter:"c"}):n(t,e,{vals:e.z,containerStr:"",cLetter:"c"})}},{"../../components/colorscale/calc":588}],1171:[function(t,e,r){"use strict";var n=t("gl-surface3d"),i=t("ndarray"),a=t("ndarray-homography"),o=t("ndarray-fill"),s=t("../../lib").isArrayOrTypedArray,l=t("../../lib/gl_format_color").parseColorScale,c=t("../../lib/str2rgbarray"),u=t("../../components/colorscale").extractOpts,f=t("../heatmap/interp2d"),h=t("../heatmap/find_empties");function p(t,e,r){this.scene=t,this.uid=r,this.surface=e,this.data=null,this.showContour=[!1,!1,!1],this.contourStart=[null,null,null],this.contourEnd=[null,null,null],this.contourSize=[0,0,0],this.minValues=[1/0,1/0,1/0],this.maxValues=[-1/0,-1/0,-1/0],this.dataScaleX=1,this.dataScaleY=1,this.refineData=!0,this.objectOffset=[0,0,0]}var d=p.prototype;d.getXat=function(t,e,r,n){var i=s(this.data.x)?s(this.data.x[0])?this.data.x[e][t]:this.data.x[t]:t;return void 0===r?i:n.d2l(i,0,r)},d.getYat=function(t,e,r,n){var i=s(this.data.y)?s(this.data.y[0])?this.data.y[e][t]:this.data.y[e]:e;return void 0===r?i:n.d2l(i,0,r)},d.getZat=function(t,e,r,n){var i=this.data.z[e][t];return null===i&&this.data.connectgaps&&this.data._interpolatedZ&&(i=this.data._interpolatedZ[e][t]),void 0===r?i:n.d2l(i,0,r)},d.handlePick=function(t){if(t.object===this.surface){var e=(t.data.index[0]-1)/this.dataScaleX-1,r=(t.data.index[1]-1)/this.dataScaleY-1,n=Math.max(Math.min(Math.round(e),this.data.z[0].length-1),0),i=Math.max(Math.min(Math.round(r),this.data._ylength-1),0);t.index=[n,i],t.traceCoordinate=[this.getXat(n,i),this.getYat(n,i),this.getZat(n,i)],t.dataCoordinate=[this.getXat(n,i,this.data.xcalendar,this.scene.fullSceneLayout.xaxis),this.getYat(n,i,this.data.ycalendar,this.scene.fullSceneLayout.yaxis),this.getZat(n,i,this.data.zcalendar,this.scene.fullSceneLayout.zaxis)];for(var a=0;a<3;a++){var o=t.dataCoordinate[a];null!=o&&(t.dataCoordinate[a]*=this.scene.dataScale[a])}var s=this.data.hovertext||this.data.text;return Array.isArray(s)&&s[i]&&void 0!==s[i][n]?t.textLabel=s[i][n]:t.textLabel=s||"",t.data.dataCoordinate=t.dataCoordinate.slice(),this.surface.highlight(t.data),this.scene.glplot.spikes.position=t.dataCoordinate,!0}};var g=[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997,1009,1013,1019,1021,1031,1033,1039,1049,1051,1061,1063,1069,1087,1091,1093,1097,1103,1109,1117,1123,1129,1151,1153,1163,1171,1181,1187,1193,1201,1213,1217,1223,1229,1231,1237,1249,1259,1277,1279,1283,1289,1291,1297,1301,1303,1307,1319,1321,1327,1361,1367,1373,1381,1399,1409,1423,1427,1429,1433,1439,1447,1451,1453,1459,1471,1481,1483,1487,1489,1493,1499,1511,1523,1531,1543,1549,1553,1559,1567,1571,1579,1583,1597,1601,1607,1609,1613,1619,1621,1627,1637,1657,1663,1667,1669,1693,1697,1699,1709,1721,1723,1733,1741,1747,1753,1759,1777,1783,1787,1789,1801,1811,1823,1831,1847,1861,1867,1871,1873,1877,1879,1889,1901,1907,1913,1931,1933,1949,1951,1973,1979,1987,1993,1997,1999,2003,2011,2017,2027,2029,2039,2053,2063,2069,2081,2083,2087,2089,2099,2111,2113,2129,2131,2137,2141,2143,2153,2161,2179,2203,2207,2213,2221,2237,2239,2243,2251,2267,2269,2273,2281,2287,2293,2297,2309,2311,2333,2339,2341,2347,2351,2357,2371,2377,2381,2383,2389,2393,2399,2411,2417,2423,2437,2441,2447,2459,2467,2473,2477,2503,2521,2531,2539,2543,2549,2551,2557,2579,2591,2593,2609,2617,2621,2633,2647,2657,2659,2663,2671,2677,2683,2687,2689,2693,2699,2707,2711,2713,2719,2729,2731,2741,2749,2753,2767,2777,2789,2791,2797,2801,2803,2819,2833,2837,2843,2851,2857,2861,2879,2887,2897,2903,2909,2917,2927,2939,2953,2957,2963,2969,2971,2999];function v(t,e){if(t<e)return 0;for(var r=0;0===Math.floor(t%e);)t/=e,r++;return r}function m(t){for(var e=[],r=0;r<g.length;r++){var n=g[r];e.push(v(t,n))}return e}function y(t){for(var e=m(t),r=t,n=0;n<g.length;n++)if(e[n]>0){r=g[n];break}return r}function x(t,e){if(!(t<1||e<1)){for(var r=m(t),n=m(e),i=1,a=0;a<g.length;a++)i*=Math.pow(g[a],Math.max(r[a],n[a]));return i}}d.calcXnums=function(t){var e,r=[];for(e=1;e<t;e++){var n=this.getXat(e-1,0),i=this.getXat(e,0);r[e-1]=i!==n&&null!=n&&null!=i?Math.abs(i-n):0}var a=0;for(e=1;e<t;e++)a+=r[e-1];for(e=1;e<t;e++)0===r[e-1]?r[e-1]=1:r[e-1]=Math.round(a/r[e-1]);return r},d.calcYnums=function(t){var e,r=[];for(e=1;e<t;e++){var n=this.getYat(0,e-1),i=this.getYat(0,e);r[e-1]=i!==n&&null!=n&&null!=i?Math.abs(i-n):0}var a=0;for(e=1;e<t;e++)a+=r[e-1];for(e=1;e<t;e++)0===r[e-1]?r[e-1]=1:r[e-1]=Math.round(a/r[e-1]);return r};var b=[1,2,4,6,12,24,36,48,60,120,180,240,360,720,840,1260],_=b[9],w=b[13];function k(t,e){for(var r=!1,n=0;n<t.length;n++)if(e===t[n]){r=!0;break}!1===r&&t.push(e)}d.estimateScale=function(t,e){for(var r=1+function(t){if(0!==t.length){for(var e=1,r=0;r<t.length;r++)e=x(e,t[r]);return e}}(0===e?this.calcXnums(t):this.calcYnums(t));r<_;)r*=2;for(;r>w;)r--,r/=y(r),++r<_&&(r=w);var n=Math.round(r/t);return n>1?n:1},d.refineCoords=function(t){for(var e=this.dataScaleX,r=this.dataScaleY,n=t[0].shape[0],o=t[0].shape[1],s=0|Math.floor(t[0].shape[0]*e+1),l=0|Math.floor(t[0].shape[1]*r+1),c=1+n+1,u=1+o+1,f=i(new Float32Array(c*u),[c,u]),h=0;h<t.length;++h){this.surface.padField(f,t[h]);var p=i(new Float32Array(s*l),[s,l]);a(p,f,[e,0,0,0,r,0,0,0,1]),t[h]=p}},d.setContourLevels=function(){var t,e,r,n=[[],[],[]],i=[!1,!1,!1],a=!1;for(t=0;t<3;++t)if(this.showContour[t]&&(a=!0,this.contourSize[t]>0&&null!==this.contourStart[t]&&null!==this.contourEnd[t]&&this.contourEnd[t]>this.contourStart[t]))for(i[t]=!0,e=this.contourStart[t];e<this.contourEnd[t];e+=this.contourSize[t])r=e*this.scene.dataScale[t],k(n[t],r);if(a){var o=[[],[],[]];for(t=0;t<3;++t)this.showContour[t]&&(o[t]=i[t]?n[t]:this.scene.contourLevels[t]);this.surface.update({levels:o})}},d.update=function(t){var e,r,n,a,s=this.scene,p=s.fullSceneLayout,d=this.surface,g=t.opacity,v=l(t,g),m=s.dataScale,y=t.z[0].length,x=t._ylength,b=s.contourLevels;this.data=t;var _=[];for(e=0;e<3;e++)for(_[e]=[],r=0;r<y;r++)_[e][r]=[];for(r=0;r<y;r++)for(n=0;n<x;n++)_[0][r][n]=this.getXat(r,n,t.xcalendar,p.xaxis),_[1][r][n]=this.getYat(r,n,t.ycalendar,p.yaxis),_[2][r][n]=this.getZat(r,n,t.zcalendar,p.zaxis);if(t.connectgaps)for(t._emptypoints=h(_[2]),f(_[2],t._emptypoints),t._interpolatedZ=[],r=0;r<y;r++)for(t._interpolatedZ[r]=[],n=0;n<x;n++)t._interpolatedZ[r][n]=_[2][r][n];for(e=0;e<3;e++)for(r=0;r<y;r++)for(n=0;n<x;n++)null==(a=_[e][r][n])?_[e][r][n]=NaN:a=_[e][r][n]*=m[e];for(e=0;e<3;e++)for(r=0;r<y;r++)for(n=0;n<x;n++)null!=(a=_[e][r][n])&&(this.minValues[e]>a&&(this.minValues[e]=a),this.maxValues[e]<a&&(this.maxValues[e]=a));for(e=0;e<3;e++)this.objectOffset[e]=.5*(this.minValues[e]+this.maxValues[e]);for(e=0;e<3;e++)for(r=0;r<y;r++)for(n=0;n<x;n++)null!=(a=_[e][r][n])&&(_[e][r][n]-=this.objectOffset[e]);var k=[i(new Float32Array(y*x),[y,x]),i(new Float32Array(y*x),[y,x]),i(new Float32Array(y*x),[y,x])];o(k[0],function(t,e){return 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n=t("./constants"),i=t("d3"),a=t("../../lib/gup"),o=t("../../components/drawing"),s=t("../../lib/svg_text_utils"),l=t("../../lib").raiseToTop,c=t("../../lib").cancelTransition,u=t("./data_preparation_helper"),f=t("./data_split_helpers"),h=t("../../components/color");function p(t){return Math.ceil(t.calcdata.maxLineWidth/2)}function d(t,e){return"clip"+t._fullLayout._uid+"_scrollAreaBottomClip_"+e.key}function g(t,e){return"clip"+t._fullLayout._uid+"_columnBoundaryClippath_"+e.calcdata.key+"_"+e.specIndex}function v(t){return[].concat.apply([],t.map(function(t){return t})).map(function(t){return t.__data__})}function m(t,e,r){var o=t.selectAll("."+n.cn.scrollbarKit).data(a.repeat,a.keyFun);o.enter().append("g").classed(n.cn.scrollbarKit,!0).style("shape-rendering","geometricPrecision"),o.each(function(t){var e=t.scrollbarState;e.totalHeight=function(t){var e=t.rowBlocks;return 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o=n.select(this),c=r[0].trace,u=i.ensureSingle(o,"g","lines");if(c.connector&&c.connector.visible){var f="h"===c.orientation,h=c.connector.mode,p=u.selectAll("g.line").data(i.identity);p.enter().append("g").classed("line",!0),p.exit().remove();var d=p.size();p.each(function(r,o){if(o===d-1||r.cNext){var c=function(t,e,r,n){var i=[],a=[],o=n?e:r,s=n?r:e;return i[0]=o.c2p(t.s0,!0),a[0]=s.c2p(t.p0,!0),i[1]=o.c2p(t.s1,!0),a[1]=s.c2p(t.p1,!0),i[2]=o.c2p(t.nextS0,!0),a[2]=s.c2p(t.nextP0,!0),n?[i,a]:[a,i]}(r,s,l,f),u=c[0],p=c[1],g="";"spanning"===h&&!r.isSum&&o>0&&(g+=f?"M"+u[0]+","+p[1]+"V"+p[0]:"M"+u[1]+","+p[0]+"H"+u[0]),"between"!==h&&(r.isSum||o<d-1)&&(g+=f?"M"+u[1]+","+p[0]+"V"+p[1]:"M"+u[0]+","+p[1]+"H"+u[1]),void 0!==u[2]&&void 0!==p[2]&&(g+=f?"M"+u[1]+","+p[1]+"V"+p[2]:"M"+u[1]+","+p[1]+"H"+u[2]),""===g&&(g="M0,0Z"),i.ensureSingle(n.select(this),"path").attr("d",g).call(a.setClipUrl,e.layerClipId,t)}})}else u.remove()})}(t,e,r,s)}},{"../../components/drawing":601,"../../lib":703,"../bar/plot":851,d3:157}],1207:[function(t,e,r){"use strict";var n=t("d3"),i=t("../../components/drawing"),a=t("../../components/color"),o=t("../bar/style").styleTextPoints;e.exports={style:function(t,e){var r=e?e[0].node3:n.select(t).selectAll("g.waterfalllayer").selectAll("g.trace");r.style("opacity",function(t){return t[0].trace.opacity}),r.each(function(e){var r=n.select(this),s=e[0].trace;r.selectAll(".point > path").each(function(t){if(!t.isBlank){var e=s[t.dir].marker;n.select(this).call(a.fill,e.color).call(a.stroke,e.line.color).call(i.dashLine,e.line.dash,e.line.width).style("opacity",s.selectedpoints&&!t.selected?.3:1)}}),o(r,s,t),r.selectAll(".lines").each(function(){var t=s.connector.line;i.lineGroupStyle(n.select(this).selectAll("path"),t.width,t.color,t.dash)})})}}},{"../../components/color":580,"../../components/drawing":601,"../bar/style":854,d3:157}],1208:[function(t,e,r){"use strict";var n=t("../plots/cartesian/axes"),i=t("../lib"),a=t("../plot_api/plot_schema"),o=t("./helpers").pointsAccessorFunction,s=t("../constants/numerical").BADNUM;r.moduleType="transform",r.name="aggregate";var l=r.attributes={enabled:{valType:"boolean",dflt:!0,editType:"calc"},groups:{valType:"string",strict:!0,noBlank:!0,arrayOk:!0,dflt:"x",editType:"calc"},aggregations:{_isLinkedToArray:"aggregation",target:{valType:"string",editType:"calc"},func:{valType:"enumerated",values:["count","sum","avg","median","mode","rms","stddev","min","max","first","last","change","range"],dflt:"first",editType:"calc"},funcmode:{valType:"enumerated",values:["sample","population"],dflt:"sample",editType:"calc"},enabled:{valType:"boolean",dflt:!0,editType:"calc"},editType:"calc"},editType:"calc"},c=l.aggregations;function u(t,e,r,a){if(a.enabled){for(var o=a.target,l=i.nestedProperty(e,o),c=l.get(),u=function(t,e){var r=t.func,n=e.d2c,i=e.c2d;switch(r){case"count":return f;case"first":return h;case"last":return p;case"sum":return function(t,e){for(var r=0,a=0;a<e.length;a++){var o=n(t[e[a]]);o!==s&&(r+=o)}return i(r)};case"avg":return function(t,e){for(var r=0,a=0,o=0;o<e.length;o++){var l=n(t[e[o]]);l!==s&&(r+=l,a++)}return a?i(r/a):s};case"min":return function(t,e){for(var r=1/0,a=0;a<e.length;a++){var o=n(t[e[a]]);o!==s&&(r=Math.min(r,o))}return r===1/0?s:i(r)};case"max":return function(t,e){for(var r=-1/0,a=0;a<e.length;a++){var o=n(t[e[a]]);o!==s&&(r=Math.max(r,o))}return r===-1/0?s:i(r)};case"range":return function(t,e){for(var r=1/0,a=-1/0,o=0;o<e.length;o++){var l=n(t[e[o]]);l!==s&&(r=Math.min(r,l),a=Math.max(a,l))}return a===-1/0||r===1/0?s:i(a-r)};case"change":return function(t,e){var r=n(t[e[0]]),a=n(t[e[e.length-1]]);return r===s||a===s?s:i(a-r)};case"median":return function(t,e){for(var r=[],a=0;a<e.length;a++){var o=n(t[e[a]]);o!==s&&r.push(o)}if(!r.length)return s;r.sort();var l=(r.length-1)/2;return i((r[Math.floor(l)]+r[Math.ceil(l)])/2)};case"mode":return function(t,e){for(var r={},a=0,o=s,l=0;l<e.length;l++){var c=n(t[e[l]]);if(c!==s){var u=r[c]=(r[c]||0)+1;u>a&&(a=u,o=c)}}return a?i(o):s};case"rms":return function(t,e){for(var r=0,a=0,o=0;o<e.length;o++){var l=n(t[e[o]]);l!==s&&(r+=l*l,a++)}return a?i(Math.sqrt(r/a)):s};case"stddev":return function(e,r){var i,a=0,o=0,l=1,c=s;for(i=0;i<r.length&&c===s;i++)c=n(e[r[i]]);if(c===s)return s;for(;i<r.length;i++){var u=n(e[r[i]]);if(u!==s){var f=u-c;a+=f,o+=f*f,l++}}var h="sample"===t.funcmode?l-1:l;return h?Math.sqrt((o-a*a/l)/h):0}}}(a,n.getDataConversions(t,e,o,c)),d=new Array(r.length),g=0;g<r.length;g++)d[g]=u(c,r[g]);l.set(d),"count"===a.func&&i.pushUnique(e._arrayAttrs,o)}}function f(t,e){return e.length}function h(t,e){return t[e[0]]}function p(t,e){return t[e[e.length-1]]}r.supplyDefaults=function(t,e){var r,n={};function o(e,r){return i.coerce(t,n,l,e,r)}if(!o("enabled"))return n;var s=a.findArrayAttributes(e),u={};for(r=0;r<s.length;r++)u[s[r]]=1;var f=o("groups");if(!Array.isArray(f)){if(!u[f])return n.enabled=!1,n;u[f]=0}var h,p=t.aggregations||[],d=n.aggregations=new Array(p.length);function g(t,e){return i.coerce(p[r],h,c,t,e)}for(r=0;r<p.length;r++){h={_index:r};var v=g("target"),m=g("func");g("enabled")&&v&&(u[v]||"count"===m&&void 0===u[v])?("stddev"===m&&g("funcmode"),u[v]=0,d[r]=h):d[r]={enabled:!1,_index:r}}for(r=0;r<s.length;r++)u[s[r]]&&d.push({target:s[r],func:c.func.dflt,enabled:!0,_index:-1});return n},r.calcTransform=function(t,e,r){if(r.enabled){var n=r.groups,a=i.getTargetArray(e,{target:n});if(a){var s,l,c,f,h={},p={},d=[],g=o(e.transforms,r),v=a.length;for(e._length&&(v=Math.min(v,e._length)),s=0;s<v;s++)void 0===(c=h[l=a[s]])?(h[l]=d.length,f=[s],d.push(f),p[h[l]]=g(s)):(d[c].push(s),p[h[l]]=(p[h[l]]||[]).concat(g(s)));r._indexToPoints=p;var m=r.aggregations;for(s=0;s<m.length;s++)u(t,e,d,m[s]);"string"==typeof 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w=o(e.transforms,r),k=0;k<f;k++){y(i[k])?(T(m,k),b[_++]=w(k)):d&&_++}r._indexToPoints=b,e._length=_}}function T(t,r){for(var i=0;i<p.length;i++){t(n.nestedProperty(e,p[i]),r)}}}},{"../constants/filter_ops":676,"../lib":703,"../plots/cartesian/axes":751,"../registry":831,"./helpers":1211}],1210:[function(t,e,r){"use strict";var n=t("../lib"),i=t("../plot_api/plot_schema"),a=t("../plots/plots"),o=t("./helpers").pointsAccessorFunction;function s(t,e){var r,s,l,c,u,f,h,p,d,g,v=e.transform,m=e.transformIndex,y=t.transforms[m].groups,x=o(t.transforms,v);if(!Array.isArray(y)||0===y.length)return[t];var b=n.filterUnique(y),_=new Array(b.length),w=y.length,k=i.findArrayAttributes(t),T=v.styles||[],A={};for(r=0;r<T.length;r++)A[T[r].target]=T[r].value;v.styles&&(g=n.keyedContainer(v,"styles","target","value.name"));var M={},S={};for(r=0;r<b.length;r++){M[f=b[r]]=r,S[f]=0,(h=_[r]=n.extendDeepNoArrays({},t))._group=f,h.transforms[m]._indexToPoints={};var E=null;for(g&&(E=g.get(f)),h.name=E||""===E?E:n.templateString(v.nameformat,{trace:t.name,group:f}),p=h.transforms,h.transforms=[],s=0;s<p.length;s++)h.transforms[s]=n.extendDeepNoArrays({},p[s]);for(s=0;s<k.length;s++)n.nestedProperty(h,k[s]).set([])}for(l=0;l<k.length;l++){for(c=k[l],s=0,d=[];s<b.length;s++)d[s]=n.nestedProperty(_[s],c).get();for(u=n.nestedProperty(t,c).get(),s=0;s<w;s++)d[M[y[s]]].push(u[s])}for(s=0;s<w;s++){(h=_[M[y[s]]]).transforms[m]._indexToPoints[S[y[s]]]=x(s),S[y[s]]++}for(r=0;r<b.length;r++)f=b[r],h=_[r],a.clearExpandedTraceDefaultColors(h),h=n.extendDeepNoArrays(h,A[f]||{});return _}r.moduleType="transform",r.name="groupby",r.attributes={enabled:{valType:"boolean",dflt:!0,editType:"calc"},groups:{valType:"data_array",dflt:[],editType:"calc"},nameformat:{valType:"string",editType:"calc"},styles:{_isLinkedToArray:"style",target:{valType:"string",editType:"calc"},value:{valType:"any",dflt:{},editType:"calc",_compareAsJSON:!0},editType:"calc"},editType:"calc"},r.supplyDefaults=function(t,e,i){var a,o={};function s(e,i){return n.coerce(t,o,r.attributes,e,i)}if(!s("enabled"))return o;s("groups"),s("nameformat",i._dataLength>1?"%{group} (%{trace})":"%{group}");var l=t.styles,c=o.styles=[];if(l)for(a=0;a<l.length;a++){var u=c[a]={};n.coerce(l[a],c[a],r.attributes.styles,"target");var f=n.coerce(l[a],c[a],r.attributes.styles,"value");n.isPlainObject(f)?u.value=n.extendDeep({},f):f&&delete u.value}return o},r.transform=function(t,e){var r,n,i,a=[];for(n=0;n<t.length;n++)for(r=s(t[n],e),i=0;i<r.length;i++)a.push(r[i]);return a}},{"../lib":703,"../plot_api/plot_schema":740,"../plots/plots":812,"./helpers":1211}],1211:[function(t,e,r){"use strict";r.pointsAccessorFunction=function(t,e){for(var r,n,i=0;i<t.length&&(r=t[i])!==e;i++)r._indexToPoints&&!1!==r.enabled&&(n=r._indexToPoints);return n?function(t){return n[t]}:function(t){return[t]}}},{}],1212:[function(t,e,r){"use strict";var n=t("../lib"),i=t("../plots/cartesian/axes"),a=t("./helpers").pointsAccessorFunction;r.moduleType="transform",r.name="sort",r.attributes={enabled:{valType:"boolean",dflt:!0,editType:"calc"},target:{valType:"string",strict:!0,noBlank:!0,arrayOk:!0,dflt:"x",editType:"calc"},order:{valType:"enumerated",values:["ascending","descending"],dflt:"ascending",editType:"calc"},editType:"calc"},r.supplyDefaults=function(t){var e={};function i(i,a){return n.coerce(t,e,r.attributes,i,a)}return i("enabled")&&(i("target"),i("order")),e},r.calcTransform=function(t,e,r){if(r.enabled){var o=n.getTargetArray(e,r);if(o){var s=r.target,l=o.length;e._length&&(l=Math.min(l,e._length));var c,u,f=e._arrayAttrs,h=function(t,e,r,n){var i,a=new Array(n),o=new Array(n);for(i=0;i<n;i++)a[i]={v:e[i],i:i};for(a.sort(function(t,e){switch(t.order){case"ascending":return function(t,r){return e(t.v)-e(r.v)};case"descending":return function(t,r){return e(r.v)-e(t.v)}}}(t,r)),i=0;i<n;i++)o[i]=a[i].i;return o}(r,o,i.getDataToCoordFunc(t,e,s,o),l),p=a(e.transforms,r),d={};for(c=0;c<f.length;c++){var g=n.nestedProperty(e,f[c]),v=g.get(),m=new Array(l);for(u=0;u<l;u++)m[u]=v[h[u]];g.set(m)}for(u=0;u<l;u++)d[u]=p(h[u]);r._indexToPoints=d,e._length=l}}}},{"../lib":703,"../plots/cartesian/axes":751,"./helpers":1211}]},{},[24])(24)});
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(10)))
+
+/***/ }),
+/* 25 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var d3 = __webpack_require__(6);
+var isNumeric = __webpack_require__(0);
+
+var numConstants = __webpack_require__(7);
+var FP_SAFE = numConstants.FP_SAFE;
+var BADNUM = numConstants.BADNUM;
+
+var lib = module.exports = {};
+
+lib.nestedProperty = __webpack_require__(8);
+lib.keyedContainer = __webpack_require__(27);
+lib.relativeAttr = __webpack_require__(28);
+lib.isPlainObject = __webpack_require__(3);
+lib.toLogRange = __webpack_require__(29);
+lib.relinkPrivateKeys = __webpack_require__(30);
+
+var arrayModule = __webpack_require__(1);
+lib.isTypedArray = arrayModule.isTypedArray;
+lib.isArrayOrTypedArray = arrayModule.isArrayOrTypedArray;
+lib.isArray1D = arrayModule.isArray1D;
+lib.ensureArray = arrayModule.ensureArray;
+lib.concat = arrayModule.concat;
+lib.maxRowLength = arrayModule.maxRowLength;
+lib.minRowLength = arrayModule.minRowLength;
+
+var modModule = __webpack_require__(2);
+lib.mod = modModule.mod;
+lib.modHalf = modModule.modHalf;
+
+var coerceModule = __webpack_require__(31);
+lib.valObjectMeta = coerceModule.valObjectMeta;
+lib.coerce = coerceModule.coerce;
+lib.coerce2 = coerceModule.coerce2;
+lib.coerceFont = coerceModule.coerceFont;
+lib.coerceHoverinfo = coerceModule.coerceHoverinfo;
+lib.coerceSelectionMarkerOpacity = coerceModule.coerceSelectionMarkerOpacity;
+lib.validate = coerceModule.validate;
+
+var datesModule = __webpack_require__(37);
+lib.dateTime2ms = datesModule.dateTime2ms;
+lib.isDateTime = datesModule.isDateTime;
+lib.ms2DateTime = datesModule.ms2DateTime;
+lib.ms2DateTimeLocal = datesModule.ms2DateTimeLocal;
+lib.cleanDate = datesModule.cleanDate;
+lib.isJSDate = datesModule.isJSDate;
+lib.formatDate = datesModule.formatDate;
+lib.incrementMonth = datesModule.incrementMonth;
+lib.dateTick0 = datesModule.dateTick0;
+lib.dfltRange = datesModule.dfltRange;
+lib.findExactDates = datesModule.findExactDates;
+lib.MIN_MS = datesModule.MIN_MS;
+lib.MAX_MS = datesModule.MAX_MS;
+
+var searchModule = __webpack_require__(43);
+lib.findBin = searchModule.findBin;
+lib.sorterAsc = searchModule.sorterAsc;
+lib.sorterDes = searchModule.sorterDes;
+lib.distinctVals = searchModule.distinctVals;
+lib.roundUp = searchModule.roundUp;
+lib.sort = searchModule.sort;
+lib.findIndexOfMin = searchModule.findIndexOfMin;
+
+var statsModule = __webpack_require__(44);
+lib.aggNums = statsModule.aggNums;
+lib.len = statsModule.len;
+lib.mean = statsModule.mean;
+lib.median = statsModule.median;
+lib.midRange = statsModule.midRange;
+lib.variance = statsModule.variance;
+lib.stdev = statsModule.stdev;
+lib.interp = statsModule.interp;
+
+var matrixModule = __webpack_require__(45);
+lib.init2dArray = matrixModule.init2dArray;
+lib.transposeRagged = matrixModule.transposeRagged;
+lib.dot = matrixModule.dot;
+lib.translationMatrix = matrixModule.translationMatrix;
+lib.rotationMatrix = matrixModule.rotationMatrix;
+lib.rotationXYMatrix = matrixModule.rotationXYMatrix;
+lib.apply2DTransform = matrixModule.apply2DTransform;
+lib.apply2DTransform2 = matrixModule.apply2DTransform2;
+
+var anglesModule = __webpack_require__(46);
+lib.deg2rad = anglesModule.deg2rad;
+lib.rad2deg = anglesModule.rad2deg;
+lib.angleDelta = anglesModule.angleDelta;
+lib.angleDist = anglesModule.angleDist;
+lib.isFullCircle = anglesModule.isFullCircle;
+lib.isAngleInsideSector = anglesModule.isAngleInsideSector;
+lib.isPtInsideSector = anglesModule.isPtInsideSector;
+lib.pathArc = anglesModule.pathArc;
+lib.pathSector = anglesModule.pathSector;
+lib.pathAnnulus = anglesModule.pathAnnulus;
+
+var anchorUtils = __webpack_require__(47);
+lib.isLeftAnchor = anchorUtils.isLeftAnchor;
+lib.isCenterAnchor = anchorUtils.isCenterAnchor;
+lib.isRightAnchor = anchorUtils.isRightAnchor;
+lib.isTopAnchor = anchorUtils.isTopAnchor;
+lib.isMiddleAnchor = anchorUtils.isMiddleAnchor;
+lib.isBottomAnchor = anchorUtils.isBottomAnchor;
+
+var geom2dModule = __webpack_require__(48);
+lib.segmentsIntersect = geom2dModule.segmentsIntersect;
+lib.segmentDistance = geom2dModule.segmentDistance;
+lib.getTextLocation = geom2dModule.getTextLocation;
+lib.clearLocationCache = geom2dModule.clearLocationCache;
+lib.getVisibleSegment = geom2dModule.getVisibleSegment;
+lib.findPointOnPath = geom2dModule.findPointOnPath;
+
+var extendModule = __webpack_require__(4);
+lib.extendFlat = extendModule.extendFlat;
+lib.extendDeep = extendModule.extendDeep;
+lib.extendDeepAll = extendModule.extendDeepAll;
+lib.extendDeepNoArrays = extendModule.extendDeepNoArrays;
+
+var loggersModule = __webpack_require__(5);
+lib.log = loggersModule.log;
+lib.warn = loggersModule.warn;
+lib.error = loggersModule.error;
+
+var regexModule = __webpack_require__(13);
+lib.counterRegex = regexModule.counter;
+
+var throttleModule = __webpack_require__(49);
+lib.throttle = throttleModule.throttle;
+lib.throttleDone = throttleModule.done;
+lib.clearThrottle = throttleModule.clear;
+
+lib.getGraphDiv = __webpack_require__(50);
+
+lib.clearResponsive = __webpack_require__(51);
+
+lib.makeTraceGroups = __webpack_require__(52);
+
+lib._ = __webpack_require__(53);
+
+lib.notifier = __webpack_require__(54);
+
+lib.filterUnique = __webpack_require__(55);
+lib.filterVisible = __webpack_require__(56);
+lib.pushUnique = __webpack_require__(16);
+
+lib.cleanNumber = __webpack_require__(57);
+
+lib.ensureNumber = function ensureNumber(v) {
+    if(!isNumeric(v)) return BADNUM;
+    v = Number(v);
+    if(v < -FP_SAFE || v > FP_SAFE) return BADNUM;
+    return isNumeric(v) ? Number(v) : BADNUM;
+};
+
+/**
+ * Is v a valid array index? Accepts numeric strings as well as numbers.
+ *
+ * @param {any} v: the value to test
+ * @param {Optional[integer]} len: the array length we are indexing
+ *
+ * @return {bool}: v is a valid array index
+ */
+lib.isIndex = function(v, len) {
+    if(len !== undefined && v >= len) return false;
+    return isNumeric(v) && (v >= 0) && (v % 1 === 0);
+};
+
+lib.noop = __webpack_require__(15);
+lib.identity = __webpack_require__(17);
+
+/**
+ * create an array of length 'cnt' filled with 'v' at all indices
+ *
+ * @param {any} v
+ * @param {number} cnt
+ * @return {array}
+ */
+lib.repeat = function(v, cnt) {
+    var out = new Array(cnt);
+    for(var i = 0; i < cnt; i++) {
+        out[i] = v;
+    }
+    return out;
+};
+
+/**
+ * swap x and y of the same attribute in container cont
+ * specify attr with a ? in place of x/y
+ * you can also swap other things than x/y by providing part1 and part2
+ */
+lib.swapAttrs = function(cont, attrList, part1, part2) {
+    if(!part1) part1 = 'x';
+    if(!part2) part2 = 'y';
+    for(var i = 0; i < attrList.length; i++) {
+        var attr = attrList[i];
+        var xp = lib.nestedProperty(cont, attr.replace('?', part1));
+        var yp = lib.nestedProperty(cont, attr.replace('?', part2));
+        var temp = xp.get();
+        xp.set(yp.get());
+        yp.set(temp);
+    }
+};
+
+/**
+ * SVG painter's algo worked around with reinsertion
+ */
+lib.raiseToTop = function raiseToTop(elem) {
+    elem.parentNode.appendChild(elem);
+};
+
+/**
+ * cancel a possibly pending transition; returned selection may be used by caller
+ */
+lib.cancelTransition = function(selection) {
+    return selection.transition().duration(0);
+};
+
+// constrain - restrict a number v to be between v0 and v1
+lib.constrain = function(v, v0, v1) {
+    if(v0 > v1) return Math.max(v1, Math.min(v0, v));
+    return Math.max(v0, Math.min(v1, v));
+};
+
+/**
+ * do two bounding boxes from getBoundingClientRect,
+ * ie {left,right,top,bottom,width,height}, overlap?
+ * takes optional padding pixels
+ */
+lib.bBoxIntersect = function(a, b, pad) {
+    pad = pad || 0;
+    return (a.left <= b.right + pad &&
+            b.left <= a.right + pad &&
+            a.top <= b.bottom + pad &&
+            b.top <= a.bottom + pad);
+};
+
+/*
+ * simpleMap: alternative to Array.map that only
+ * passes on the element and up to 2 extra args you
+ * provide (but not the array index or the whole array)
+ *
+ * array: the array to map it to
+ * func: the function to apply
+ * x1, x2: optional extra args
+ */
+lib.simpleMap = function(array, func, x1, x2) {
+    var len = array.length;
+    var out = new Array(len);
+    for(var i = 0; i < len; i++) out[i] = func(array[i], x1, x2);
+    return out;
+};
+
+/**
+ * Random string generator
+ *
+ * @param {object} existing
+ *     pass in strings to avoid as keys with truthy values
+ * @param {int} bits
+ *     bits of information in the output string, default 24
+ * @param {int} base
+ *     base of string representation, default 16. Should be a power of 2.
+ */
+lib.randstr = function randstr(existing, bits, base, _recursion) {
+    if(!base) base = 16;
+    if(bits === undefined) bits = 24;
+    if(bits <= 0) return '0';
+
+    var digits = Math.log(Math.pow(2, bits)) / Math.log(base);
+    var res = '';
+    var i, b, x;
+
+    for(i = 2; digits === Infinity; i *= 2) {
+        digits = Math.log(Math.pow(2, bits / i)) / Math.log(base) * i;
+    }
+
+    var rem = digits - Math.floor(digits);
+
+    for(i = 0; i < Math.floor(digits); i++) {
+        x = Math.floor(Math.random() * base).toString(base);
+        res = x + res;
+    }
+
+    if(rem) {
+        b = Math.pow(base, rem);
+        x = Math.floor(Math.random() * b).toString(base);
+        res = x + res;
+    }
+
+    var parsed = parseInt(res, base);
+    if((existing && existing[res]) ||
+         (parsed !== Infinity && parsed >= Math.pow(2, bits))) {
+        if(_recursion > 10) {
+            lib.warn('randstr failed uniqueness');
+            return res;
+        }
+        return randstr(existing, bits, base, (_recursion || 0) + 1);
+    } else return res;
+};
+
+lib.OptionControl = function(opt, optname) {
+    /*
+     * An environment to contain all option setters and
+     * getters that collectively modify opts.
+     *
+     * You can call up opts from any function in new object
+     * as this.optname || this.opt
+     *
+     * See FitOpts for example of usage
+     */
+    if(!opt) opt = {};
+    if(!optname) optname = 'opt';
+
+    var self = {};
+    self.optionList = [];
+
+    self._newoption = function(optObj) {
+        optObj[optname] = opt;
+        self[optObj.name] = optObj;
+        self.optionList.push(optObj);
+    };
+
+    self['_' + optname] = opt;
+    return self;
+};
+
+/**
+ * lib.smooth: smooth arrayIn by convolving with
+ * a hann window with given full width at half max
+ * bounce the ends in, so the output has the same length as the input
+ */
+lib.smooth = function(arrayIn, FWHM) {
+    FWHM = Math.round(FWHM) || 0; // only makes sense for integers
+    if(FWHM < 2) return arrayIn;
+
+    var alen = arrayIn.length;
+    var alen2 = 2 * alen;
+    var wlen = 2 * FWHM - 1;
+    var w = new Array(wlen);
+    var arrayOut = new Array(alen);
+    var i;
+    var j;
+    var k;
+    var v;
+
+    // first make the window array
+    for(i = 0; i < wlen; i++) {
+        w[i] = (1 - Math.cos(Math.PI * (i + 1) / FWHM)) / (2 * FWHM);
+    }
+
+    // now do the convolution
+    for(i = 0; i < alen; i++) {
+        v = 0;
+        for(j = 0; j < wlen; j++) {
+            k = i + j + 1 - FWHM;
+
+            // multibounce
+            if(k < -alen) k -= alen2 * Math.round(k / alen2);
+            else if(k >= alen2) k -= alen2 * Math.floor(k / alen2);
+
+            // single bounce
+            if(k < 0) k = - 1 - k;
+            else if(k >= alen) k = alen2 - 1 - k;
+
+            v += arrayIn[k] * w[j];
+        }
+        arrayOut[i] = v;
+    }
+
+    return arrayOut;
+};
+
+/**
+ * syncOrAsync: run a sequence of functions synchronously
+ * as long as its returns are not promises (ie have no .then)
+ * includes one argument arg to send to all functions...
+ * this is mainly just to prevent us having to make wrapper functions
+ * when the only purpose of the wrapper is to reference gd
+ * and a final step to be executed at the end
+ * TODO: if there's an error and everything is sync,
+ * this doesn't happen yet because we want to make sure
+ * that it gets reported
+ */
+lib.syncOrAsync = function(sequence, arg, finalStep) {
+    var ret, fni;
+
+    function continueAsync() {
+        return lib.syncOrAsync(sequence, arg, finalStep);
+    }
+
+    while(sequence.length) {
+        fni = sequence.splice(0, 1)[0];
+        ret = fni(arg);
+
+        if(ret && ret.then) {
+            return ret.then(continueAsync)
+                .then(undefined, lib.promiseError);
+        }
+    }
+
+    return finalStep && finalStep(arg);
+};
+
+
+/**
+ * Helper to strip trailing slash, from
+ * http://stackoverflow.com/questions/6680825/return-string-without-trailing-slash
+ */
+lib.stripTrailingSlash = function(str) {
+    if(str.substr(-1) === '/') return str.substr(0, str.length - 1);
+    return str;
+};
+
+lib.noneOrAll = function(containerIn, containerOut, attrList) {
+    /**
+     * some attributes come together, so if you have one of them
+     * in the input, you should copy the default values of the others
+     * to the input as well.
+     */
+    if(!containerIn) return;
+
+    var hasAny = false;
+    var hasAll = true;
+    var i;
+    var val;
+
+    for(i = 0; i < attrList.length; i++) {
+        val = containerIn[attrList[i]];
+        if(val !== undefined && val !== null) hasAny = true;
+        else hasAll = false;
+    }
+
+    if(hasAny && !hasAll) {
+        for(i = 0; i < attrList.length; i++) {
+            containerIn[attrList[i]] = containerOut[attrList[i]];
+        }
+    }
+};
+
+/** merges calcdata field (given by cdAttr) with traceAttr values
+ *
+ * N.B. Loop over minimum of cd.length and traceAttr.length
+ * i.e. it does not try to fill in beyond traceAttr.length-1
+ *
+ * @param {array} traceAttr : trace attribute
+ * @param {object} cd : calcdata trace
+ * @param {string} cdAttr : calcdata key
+ */
+lib.mergeArray = function(traceAttr, cd, cdAttr) {
+    if(lib.isArrayOrTypedArray(traceAttr)) {
+        var imax = Math.min(traceAttr.length, cd.length);
+        for(var i = 0; i < imax; i++) cd[i][cdAttr] = traceAttr[i];
+    }
+};
+
+/** fills calcdata field (given by cdAttr) with traceAttr values
+ *  or function of traceAttr values (e.g. some fallback)
+ *
+ * N.B. Loops over all cd items.
+ *
+ * @param {array} traceAttr : trace attribute
+ * @param {object} cd : calcdata trace
+ * @param {string} cdAttr : calcdata key
+ * @param {function} [fn] : optional function to apply to each array item
+ */
+lib.fillArray = function(traceAttr, cd, cdAttr, fn) {
+    fn = fn || lib.identity;
+
+    if(lib.isArrayOrTypedArray(traceAttr)) {
+        for(var i = 0; i < cd.length; i++) {
+            cd[i][cdAttr] = fn(traceAttr[i]);
+        }
+    }
+};
+
+/** Handler for trace-wide vs per-point options
+ *
+ * @param {object} trace : (full) trace object
+ * @param {number} ptNumber : index of the point in question
+ * @param {string} astr : attribute string
+ * @param {function} [fn] : optional function to apply to each array item
+ *
+ * @return {any}
+ */
+lib.castOption = function(trace, ptNumber, astr, fn) {
+    fn = fn || lib.identity;
+
+    var val = lib.nestedProperty(trace, astr).get();
+
+    if(lib.isArrayOrTypedArray(val)) {
+        if(Array.isArray(ptNumber) && lib.isArrayOrTypedArray(val[ptNumber[0]])) {
+            return fn(val[ptNumber[0]][ptNumber[1]]);
+        } else {
+            return fn(val[ptNumber]);
+        }
+    } else {
+        return val;
+    }
+};
+
+/** Extract option from calcdata item, correctly falling back to
+ *  trace value if not found.
+ *
+ *  @param {object} calcPt : calcdata[i][j] item
+ *  @param {object} trace : (full) trace object
+ *  @param {string} calcKey : calcdata key
+ *  @param {string} traceKey : aka trace attribute string
+ *  @return {any}
+ */
+lib.extractOption = function(calcPt, trace, calcKey, traceKey) {
+    if(calcKey in calcPt) return calcPt[calcKey];
+
+    // fallback to trace value,
+    //   must check if value isn't itself an array
+    //   which means the trace attribute has a corresponding
+    //   calcdata key, but its value is falsy
+    var traceVal = lib.nestedProperty(trace, traceKey).get();
+    if(!Array.isArray(traceVal)) return traceVal;
+};
+
+function makePtIndex2PtNumber(indexToPoints) {
+    var ptIndex2ptNumber = {};
+    for(var k in indexToPoints) {
+        var pts = indexToPoints[k];
+        for(var j = 0; j < pts.length; j++) {
+            ptIndex2ptNumber[pts[j]] = +k;
+        }
+    }
+    return ptIndex2ptNumber;
+}
+
+/** Tag selected calcdata items
+ *
+ * N.B. note that point 'index' corresponds to input data array index
+ *  whereas 'number' is its post-transform version.
+ *
+ * @param {array} calcTrace
+ * @param {object} trace
+ *  - selectedpoints {array}
+ *  - _indexToPoints {object}
+ * @param {ptNumber2cdIndex} ptNumber2cdIndex (optional)
+ *  optional map object for trace types that do not have 1-to-1 point number to
+ *  calcdata item index correspondence (e.g. histogram)
+ */
+lib.tagSelected = function(calcTrace, trace, ptNumber2cdIndex) {
+    var selectedpoints = trace.selectedpoints;
+    var indexToPoints = trace._indexToPoints;
+    var ptIndex2ptNumber;
+
+    // make pt index-to-number map object, which takes care of transformed traces
+    if(indexToPoints) {
+        ptIndex2ptNumber = makePtIndex2PtNumber(indexToPoints);
+    }
+
+    function isCdIndexValid(v) {
+        return v !== undefined && v < calcTrace.length;
+    }
+
+    for(var i = 0; i < selectedpoints.length; i++) {
+        var ptIndex = selectedpoints[i];
+
+        if(lib.isIndex(ptIndex)) {
+            var ptNumber = ptIndex2ptNumber ? ptIndex2ptNumber[ptIndex] : ptIndex;
+            var cdIndex = ptNumber2cdIndex ? ptNumber2cdIndex[ptNumber] : ptNumber;
+
+            if(isCdIndexValid(cdIndex)) {
+                calcTrace[cdIndex].selected = 1;
+            }
+        }
+    }
+};
+
+lib.selIndices2selPoints = function(trace) {
+    var selectedpoints = trace.selectedpoints;
+    var indexToPoints = trace._indexToPoints;
+
+    if(indexToPoints) {
+        var ptIndex2ptNumber = makePtIndex2PtNumber(indexToPoints);
+        var out = [];
+
+        for(var i = 0; i < selectedpoints.length; i++) {
+            var ptIndex = selectedpoints[i];
+            if(lib.isIndex(ptIndex)) {
+                var ptNumber = ptIndex2ptNumber[ptIndex];
+                if(lib.isIndex(ptNumber)) {
+                    out.push(ptNumber);
+                }
+            }
+        }
+
+        return out;
+    } else {
+        return selectedpoints;
+    }
+};
+
+/** Returns target as set by 'target' transform attribute
+ *
+ * @param {object} trace : full trace object
+ * @param {object} transformOpts : transform option object
+ *  - target (string} :
+ *      either an attribute string referencing an array in the trace object, or
+ *      a set array.
+ *
+ * @return {array or false} : the target array (NOT a copy!!) or false if invalid
+ */
+lib.getTargetArray = function(trace, transformOpts) {
+    var target = transformOpts.target;
+
+    if(typeof target === 'string' && target) {
+        var array = lib.nestedProperty(trace, target).get();
+        return Array.isArray(array) ? array : false;
+    } else if(Array.isArray(target)) {
+        return target;
+    }
+
+    return false;
+};
+
+/**
+ * modified version of jQuery's extend to strip out private objs and functions,
+ * and cut arrays down to first <arraylen> or 1 elements
+ * because extend-like algorithms are hella slow
+ * obj2 is assumed to already be clean of these things (including no arrays)
+ */
+lib.minExtend = function(obj1, obj2) {
+    var objOut = {};
+    if(typeof obj2 !== 'object') obj2 = {};
+    var arrayLen = 3;
+    var keys = Object.keys(obj1);
+    var i, k, v;
+
+    for(i = 0; i < keys.length; i++) {
+        k = keys[i];
+        v = obj1[k];
+        if(k.charAt(0) === '_' || typeof v === 'function') continue;
+        else if(k === 'module') objOut[k] = v;
+        else if(Array.isArray(v)) {
+            if(k === 'colorscale') {
+                objOut[k] = v.slice();
+            } else {
+                objOut[k] = v.slice(0, arrayLen);
+            }
+        } else if(v && (typeof v === 'object')) objOut[k] = lib.minExtend(obj1[k], obj2[k]);
+        else objOut[k] = v;
+    }
+
+    keys = Object.keys(obj2);
+    for(i = 0; i < keys.length; i++) {
+        k = keys[i];
+        v = obj2[k];
+        if(typeof v !== 'object' || !(k in objOut) || typeof objOut[k] !== 'object') {
+            objOut[k] = v;
+        }
+    }
+
+    return objOut;
+};
+
+lib.titleCase = function(s) {
+    return s.charAt(0).toUpperCase() + s.substr(1);
+};
+
+lib.containsAny = function(s, fragments) {
+    for(var i = 0; i < fragments.length; i++) {
+        if(s.indexOf(fragments[i]) !== -1) return true;
+    }
+    return false;
+};
+
+lib.isPlotDiv = function(el) {
+    var el3 = d3.select(el);
+    return el3.node() instanceof HTMLElement &&
+        el3.size() &&
+        el3.classed('js-plotly-plot');
+};
+
+lib.removeElement = function(el) {
+    var elParent = el && el.parentNode;
+    if(elParent) elParent.removeChild(el);
+};
+
+/**
+ * for dynamically adding style rules
+ * makes one stylesheet that contains all rules added
+ * by all calls to this function
+ */
+lib.addStyleRule = function(selector, styleString) {
+    lib.addRelatedStyleRule('global', selector, styleString);
+};
+
+/**
+ * for dynamically adding style rules
+ * to a stylesheet uniquely identified by a uid
+ */
+lib.addRelatedStyleRule = function(uid, selector, styleString) {
+    var id = 'plotly.js-style-' + uid;
+    var style = document.getElementById(id);
+    if(!style) {
+        style = document.createElement('style');
+        style.setAttribute('id', id);
+        // WebKit hack :(
+        style.appendChild(document.createTextNode(''));
+        document.head.appendChild(style);
+    }
+    var styleSheet = style.sheet;
+
+    if(styleSheet.insertRule) {
+        styleSheet.insertRule(selector + '{' + styleString + '}', 0);
+    } else if(styleSheet.addRule) {
+        styleSheet.addRule(selector, styleString, 0);
+    } else lib.warn('addStyleRule failed');
+};
+
+/**
+ * to remove from the page a stylesheet identified by a given uid
+ */
+lib.deleteRelatedStyleRule = function(uid) {
+    var id = 'plotly.js-style-' + uid;
+    var style = document.getElementById(id);
+    if(style) lib.removeElement(style);
+};
+
+lib.isIE = function() {
+    return typeof window.navigator.msSaveBlob !== 'undefined';
+};
+
+/**
+ * Duck typing to recognize a d3 selection, mostly for IE9's benefit
+ * because it doesn't handle instanceof like modern browsers
+ */
+lib.isD3Selection = function(obj) {
+    return obj && (typeof obj.classed === 'function');
+};
+
+/**
+ * Append element to DOM only if not present.
+ *
+ * @param {d3 selection} parent : parent selection of the element in question
+ * @param {string} nodeType : node type of element to append
+ * @param {string} className (optional) : class name of element in question
+ * @param {fn} enterFn (optional) : optional fn applied to entering elements only
+ * @return {d3 selection} selection of new layer
+ *
+ * Previously, we were using the following pattern:
+ *
+ * ```
+ * var sel = parent.selectAll('.' + className)
+ *     .data([0]);
+ *
+ * sel.enter().append(nodeType)
+ *     .classed(className, true);
+ *
+ * return sel;
+ * ```
+ *
+ * in numerous places in our codebase to achieve the same behavior.
+ *
+ * The logic below performs much better, mostly as we are using
+ * `.select` instead `.selectAll` that is `querySelector` instead of
+ * `querySelectorAll`.
+ *
+ */
+lib.ensureSingle = function(parent, nodeType, className, enterFn) {
+    var sel = parent.select(nodeType + (className ? '.' + className : ''));
+    if(sel.size()) return sel;
+
+    var layer = parent.append(nodeType);
+    if(className) layer.classed(className, true);
+    if(enterFn) layer.call(enterFn);
+
+    return layer;
+};
+
+/**
+ * Same as Lib.ensureSingle, but using id as selector.
+ * This version is mostly used for clipPath nodes.
+ *
+ * @param {d3 selection} parent : parent selection of the element in question
+ * @param {string} nodeType : node type of element to append
+ * @param {string} id : id of element in question
+ * @param {fn} enterFn (optional) : optional fn applied to entering elements only
+ * @return {d3 selection} selection of new layer
+ */
+lib.ensureSingleById = function(parent, nodeType, id, enterFn) {
+    var sel = parent.select(nodeType + '#' + id);
+    if(sel.size()) return sel;
+
+    var layer = parent.append(nodeType).attr('id', id);
+    if(enterFn) layer.call(enterFn);
+
+    return layer;
+};
+
+/**
+ * Converts a string path to an object.
+ *
+ * When given a string containing an array element, it will create a `null`
+ * filled array of the given size.
+ *
+ * @example
+ * lib.objectFromPath('nested.test[2].path', 'value');
+ * // returns { nested: { test: [null, null, { path: 'value' }]}
+ *
+ * @param   {string}    path to nested value
+ * @param   {*}         any value to be set
+ *
+ * @return {Object} the constructed object with a full nested path
+ */
+lib.objectFromPath = function(path, value) {
+    var keys = path.split('.');
+    var tmpObj;
+    var obj = tmpObj = {};
+
+    for(var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        var el = null;
+
+        var parts = keys[i].match(/(.*)\[([0-9]+)\]/);
+
+        if(parts) {
+            key = parts[1];
+            el = parts[2];
+
+            tmpObj = tmpObj[key] = [];
+
+            if(i === keys.length - 1) {
+                tmpObj[el] = value;
+            } else {
+                tmpObj[el] = {};
+            }
+
+            tmpObj = tmpObj[el];
+        } else {
+            if(i === keys.length - 1) {
+                tmpObj[key] = value;
+            } else {
+                tmpObj[key] = {};
+            }
+
+            tmpObj = tmpObj[key];
+        }
+    }
+
+    return obj;
+};
+
+/**
+ * Iterate through an object in-place, converting dotted properties to objects.
+ *
+ * Examples:
+ *
+ *   lib.expandObjectPaths({'nested.test.path': 'value'});
+ *     => { nested: { test: {path: 'value'}}}
+ *
+ * It also handles array notation, e.g.:
+ *
+ *   lib.expandObjectPaths({'foo[1].bar': 'value'});
+ *     => { foo: [null, {bar: value}] }
+ *
+ * It handles merges the results when two properties are specified in parallel:
+ *
+ *   lib.expandObjectPaths({'foo[1].bar': 10, 'foo[0].bar': 20});
+ *     => { foo: [{bar: 10}, {bar: 20}] }
+ *
+ * It does NOT, however, merge mulitple mutliply-nested arrays::
+ *
+ *   lib.expandObjectPaths({'marker[1].range[1]': 5, 'marker[1].range[0]': 4})
+ *     => { marker: [null, {range: 4}] }
+ */
+
+// Store this to avoid recompiling regex on *every* prop since this may happen many
+// many times for animations. Could maybe be inside the function. Not sure about
+// scoping vs. recompilation tradeoff, but at least it's not just inlining it into
+// the inner loop.
+var dottedPropertyRegex = /^([^\[\.]+)\.(.+)?/;
+var indexedPropertyRegex = /^([^\.]+)\[([0-9]+)\](\.)?(.+)?/;
+
+lib.expandObjectPaths = function(data) {
+    var match, key, prop, datum, idx, dest, trailingPath;
+    if(typeof data === 'object' && !Array.isArray(data)) {
+        for(key in data) {
+            if(data.hasOwnProperty(key)) {
+                if((match = key.match(dottedPropertyRegex))) {
+                    datum = data[key];
+                    prop = match[1];
+
+                    delete data[key];
+
+                    data[prop] = lib.extendDeepNoArrays(data[prop] || {}, lib.objectFromPath(key, lib.expandObjectPaths(datum))[prop]);
+                } else if((match = key.match(indexedPropertyRegex))) {
+                    datum = data[key];
+
+                    prop = match[1];
+                    idx = parseInt(match[2]);
+
+                    delete data[key];
+
+                    data[prop] = data[prop] || [];
+
+                    if(match[3] === '.') {
+                        // This is the case where theere are subsequent properties into which
+                        // we must recurse, e.g. transforms[0].value
+                        trailingPath = match[4];
+                        dest = data[prop][idx] = data[prop][idx] || {};
+
+                        // NB: Extend deep no arrays prevents this from working on multiple
+                        // nested properties in the same object, e.g.
+                        //
+                        // {
+                        //   foo[0].bar[1].range
+                        //   foo[0].bar[0].range
+                        // }
+                        //
+                        // In this case, the extendDeepNoArrays will overwrite one array with
+                        // the other, so that both properties *will not* be present in the
+                        // result. Fixing this would require a more intelligent tracking
+                        // of changes and merging than extendDeepNoArrays currently accomplishes.
+                        lib.extendDeepNoArrays(dest, lib.objectFromPath(trailingPath, lib.expandObjectPaths(datum)));
+                    } else {
+                        // This is the case where this property is the end of the line,
+                        // e.g. xaxis.range[0]
+                        data[prop][idx] = lib.expandObjectPaths(datum);
+                    }
+                } else {
+                    data[key] = lib.expandObjectPaths(data[key]);
+                }
+            }
+        }
+    }
+
+    return data;
+};
+
+/**
+ * Converts value to string separated by the provided separators.
+ *
+ * @example
+ * lib.numSeparate(2016, '.,');
+ * // returns '2016'
+ *
+ * @example
+ * lib.numSeparate(3000, '.,', true);
+ * // returns '3,000'
+ *
+ * @example
+ * lib.numSeparate(1234.56, '|,')
+ * // returns '1,234|56'
+ *
+ * @param   {string|number} value       the value to be converted
+ * @param   {string}    separators  string of decimal, then thousands separators
+ * @param   {boolean}    separatethousands  boolean, 4-digit integers are separated if true
+ *
+ * @return  {string}    the value that has been separated
+ */
+lib.numSeparate = function(value, separators, separatethousands) {
+    if(!separatethousands) separatethousands = false;
+
+    if(typeof separators !== 'string' || separators.length === 0) {
+        throw new Error('Separator string required for formatting!');
+    }
+
+    if(typeof value === 'number') {
+        value = String(value);
+    }
+
+    var thousandsRe = /(\d+)(\d{3})/;
+    var decimalSep = separators.charAt(0);
+    var thouSep = separators.charAt(1);
+
+    var x = value.split('.');
+    var x1 = x[0];
+    var x2 = x.length > 1 ? decimalSep + x[1] : '';
+
+    // Years are ignored for thousands separators
+    if(thouSep && (x.length > 1 || x1.length > 4 || separatethousands)) {
+        while(thousandsRe.test(x1)) {
+            x1 = x1.replace(thousandsRe, '$1' + thouSep + '$2');
+        }
+    }
+
+    return x1 + x2;
+};
+
+lib.TEMPLATE_STRING_REGEX = /%{([^\s%{}:]*)(:[^}]*)?}/g;
+var SIMPLE_PROPERTY_REGEX = /^\w*$/;
+
+/**
+ * Substitute values from an object into a string
+ *
+ * Examples:
+ *  Lib.templateString('name: %{trace}', {trace: 'asdf'}) --> 'name: asdf'
+ *  Lib.templateString('name: %{trace[0].name}', {trace: [{name: 'asdf'}]}) --> 'name: asdf'
+ *
+ * @param {string}  input string containing %{...} template strings
+ * @param {obj}     data object containing substitution values
+ *
+ * @return {string} templated string
+ */
+lib.templateString = function(string, obj) {
+    // Not all that useful, but cache nestedProperty instantiation
+    // just in case it speeds things up *slightly*:
+    var getterCache = {};
+
+    return string.replace(lib.TEMPLATE_STRING_REGEX, function(dummy, key) {
+        if(SIMPLE_PROPERTY_REGEX.test(key)) {
+            return obj[key] || '';
+        }
+        getterCache[key] = getterCache[key] || lib.nestedProperty(obj, key).get;
+        return getterCache[key]() || '';
+    });
+};
+
+var TEMPLATE_STRING_FORMAT_SEPARATOR = /^:/;
+var numberOfHoverTemplateWarnings = 0;
+var maximumNumberOfHoverTemplateWarnings = 10;
+/**
+ * Substitute values from an object into a string and optionally formats them using d3-format,
+ * or fallback to associated labels.
+ *
+ * Examples:
+ *  Lib.hovertemplateString('name: %{trace}', {trace: 'asdf'}) --> 'name: asdf'
+ *  Lib.hovertemplateString('name: %{trace[0].name}', {trace: [{name: 'asdf'}]}) --> 'name: asdf'
+ *  Lib.hovertemplateString('price: %{y:$.2f}', {y: 1}) --> 'price: $1.00'
+ *
+ * @param {obj}     d3 locale
+ * @param {string}  input string containing %{...:...} template strings
+ * @param {obj}     data object containing fallback text when no formatting is specified, ex.: {yLabel: 'formattedYValue'}
+ * @param {obj}     data objects containing substitution values
+ *
+ * @return {string} templated string
+ */
+lib.hovertemplateString = function(string, labels, d3locale) {
+    var args = arguments;
+    // Not all that useful, but cache nestedProperty instantiation
+    // just in case it speeds things up *slightly*:
+    var getterCache = {};
+
+    return string.replace(lib.TEMPLATE_STRING_REGEX, function(match, key, format) {
+        var obj, value, i;
+        for(i = 3; i < args.length; i++) {
+            obj = args[i];
+            if(obj.hasOwnProperty(key)) {
+                value = obj[key];
+                break;
+            }
+
+            if(!SIMPLE_PROPERTY_REGEX.test(key)) {
+                value = getterCache[key] || lib.nestedProperty(obj, key).get();
+                if(value) getterCache[key] = value;
+            }
+            if(value !== undefined) break;
+        }
+
+        if(value === undefined) {
+            if(numberOfHoverTemplateWarnings < maximumNumberOfHoverTemplateWarnings) {
+                lib.warn('Variable \'' + key + '\' in hovertemplate could not be found!');
+                value = match;
+            }
+
+            if(numberOfHoverTemplateWarnings === maximumNumberOfHoverTemplateWarnings) {
+                lib.warn('Too many hovertemplate warnings - additional warnings will be suppressed');
+            }
+            numberOfHoverTemplateWarnings++;
+        }
+
+        if(format) {
+            var fmt;
+            if(d3locale) {
+                fmt = d3locale.numberFormat;
+            } else {
+                fmt = d3.format;
+            }
+            value = fmt(format.replace(TEMPLATE_STRING_FORMAT_SEPARATOR, ''))(value);
+        } else {
+            if(labels.hasOwnProperty(key + 'Label')) value = labels[key + 'Label'];
+        }
+        return value;
+    });
+};
+
+/*
+ * alphanumeric string sort, tailored for subplot IDs like scene2, scene10, x10y13 etc
+ */
+var char0 = 48;
+var char9 = 57;
+lib.subplotSort = function(a, b) {
+    var l = Math.min(a.length, b.length) + 1;
+    var numA = 0;
+    var numB = 0;
+    for(var i = 0; i < l; i++) {
+        var charA = a.charCodeAt(i) || 0;
+        var charB = b.charCodeAt(i) || 0;
+        var isNumA = charA >= char0 && charA <= char9;
+        var isNumB = charB >= char0 && charB <= char9;
+
+        if(isNumA) numA = 10 * numA + charA - char0;
+        if(isNumB) numB = 10 * numB + charB - char0;
+
+        if(!isNumA || !isNumB) {
+            if(numA !== numB) return numA - numB;
+            if(charA !== charB) return charA - charB;
+        }
+    }
+    return numB - numA;
+};
+
+// repeatable pseudorandom generator
+var randSeed = 2000000000;
+
+lib.seedPseudoRandom = function() {
+    randSeed = 2000000000;
+};
+
+lib.pseudoRandom = function() {
+    var lastVal = randSeed;
+    randSeed = (69069 * randSeed + 1) % 4294967296;
+    // don't let consecutive vals be too close together
+    // gets away from really trying to be random, in favor of better local uniformity
+    if(Math.abs(randSeed - lastVal) < 429496729) return lib.pseudoRandom();
+    return randSeed / 4294967296;
+};
+
+
+/** Fill hover 'pointData' container with 'correct' hover text value
+ *
+ * - If trace hoverinfo contains a 'text' flag and hovertext is not set,
+ *   the text elements will be seen in the hover labels.
+ *
+ * - If trace hoverinfo contains a 'text' flag and hovertext is set,
+ *   hovertext takes precedence over text
+ *   i.e. the hoverinfo elements will be seen in the hover labels
+ *
+ *  @param {object} calcPt
+ *  @param {object} trace
+ *  @param {object || array} contOut (mutated here)
+ */
+lib.fillText = function(calcPt, trace, contOut) {
+    var fill = Array.isArray(contOut) ?
+        function(v) { contOut.push(v); } :
+        function(v) { contOut.text = v; };
+
+    var htx = lib.extractOption(calcPt, trace, 'htx', 'hovertext');
+    if(lib.isValidTextValue(htx)) return fill(htx);
+
+    var tx = lib.extractOption(calcPt, trace, 'tx', 'text');
+    if(lib.isValidTextValue(tx)) return fill(tx);
+};
+
+// accept all truthy values and 0 (which gets cast to '0' in the hover labels)
+lib.isValidTextValue = function(v) {
+    return v || v === 0;
+};
+
+lib.formatPercent = function(ratio, n) {
+    n = n || 0;
+    var str = (Math.round(100 * ratio * Math.pow(10, n)) * Math.pow(0.1, n)).toFixed(n) + '%';
+    for(var i = 0; i < n; i++) {
+        if(str.indexOf('.') !== -1) {
+            str = str.replace('0%', '%');
+            str = str.replace('.%', '%');
+        }
+    }
+    return str;
+};
+
+
+/***/ }),
+/* 26 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+/**
+ * Is this string all whitespace?
+ * This solution kind of makes my brain hurt, but it's significantly faster
+ * than !str.trim() or any other solution I could find.
+ *
+ * whitespace codes from: http://en.wikipedia.org/wiki/Whitespace_character
+ * and verified with:
+ *
+ *  for(var i = 0; i < 65536; i++) {
+ *      var s = String.fromCharCode(i);
+ *      if(+s===0 && !s.trim()) console.log(i, s);
+ *  }
+ *
+ * which counts a couple of these as *not* whitespace, but finds nothing else
+ * that *is* whitespace. Note that charCodeAt stops at 16 bits, but it appears
+ * that there are no whitespace characters above this, and code points above
+ * this do not map onto white space characters.
+ */
+
+module.exports = function(str){
+    var l = str.length,
+        a;
+    for(var i = 0; i < l; i++) {
+        a = str.charCodeAt(i);
+        if((a < 9 || a > 13) && (a !== 32) && (a !== 133) && (a !== 160) &&
+            (a !== 5760) && (a !== 6158) && (a < 8192 || a > 8205) &&
+            (a !== 8232) && (a !== 8233) && (a !== 8239) && (a !== 8287) &&
+            (a !== 8288) && (a !== 12288) && (a !== 65279)) {
+                return false;
+        }
+    }
+    return true;
+}
+
+
+/***/ }),
+/* 27 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var nestedProperty = __webpack_require__(8);
+
+var SIMPLE_PROPERTY_REGEX = /^\w*$/;
+
+// bitmask for deciding what's updated. Sometimes the name needs to be updated,
+// sometimes the value needs to be updated, and sometimes both do. This is just
+// a simple way to track what's updated such that it's a simple OR operation to
+// assimilate new updates.
+//
+// The only exception is the UNSET bit that tracks when we need to explicitly
+// unset and remove the property. This concrn arises because of the special
+// way in which nestedProperty handles null/undefined. When you specify `null`,
+// it prunes any unused items in the tree. I ran into some issues with it getting
+// null vs undefined confused, so UNSET is just a bit that forces the property
+// update to send `null`, removing the property explicitly rather than setting
+// it to undefined.
+var NONE = 0;
+var NAME = 1;
+var VALUE = 2;
+var BOTH = 3;
+var UNSET = 4;
+
+module.exports = function keyedContainer(baseObj, path, keyName, valueName) {
+    keyName = keyName || 'name';
+    valueName = valueName || 'value';
+    var i, arr, baseProp;
+    var changeTypes = {};
+
+    if(path && path.length) {
+        baseProp = nestedProperty(baseObj, path);
+        arr = baseProp.get();
+    } else {
+        arr = baseObj;
+    }
+
+    path = path || '';
+
+    // Construct an index:
+    var indexLookup = {};
+    if(arr) {
+        for(i = 0; i < arr.length; i++) {
+            indexLookup[arr[i][keyName]] = i;
+        }
+    }
+
+    var isSimpleValueProp = SIMPLE_PROPERTY_REGEX.test(valueName);
+
+    var obj = {
+        set: function(name, value) {
+            var changeType = value === null ? UNSET : NONE;
+
+            // create the base array if necessary
+            if(!arr) {
+                if(!baseProp || changeType === UNSET) return;
+
+                arr = [];
+                baseProp.set(arr);
+            }
+
+            var idx = indexLookup[name];
+            if(idx === undefined) {
+                if(changeType === UNSET) return;
+
+                changeType = changeType | BOTH;
+                idx = arr.length;
+                indexLookup[name] = idx;
+            } else if(value !== (isSimpleValueProp ? arr[idx][valueName] : nestedProperty(arr[idx], valueName).get())) {
+                changeType = changeType | VALUE;
+            }
+
+            var newValue = arr[idx] = arr[idx] || {};
+            newValue[keyName] = name;
+
+            if(isSimpleValueProp) {
+                newValue[valueName] = value;
+            } else {
+                nestedProperty(newValue, valueName).set(value);
+            }
+
+            // If it's not an unset, force that bit to be unset. This is all related to the fact
+            // that undefined and null are a bit specially implemented in nestedProperties.
+            if(value !== null) {
+                changeType = changeType & ~UNSET;
+            }
+
+            changeTypes[idx] = changeTypes[idx] | changeType;
+
+            return obj;
+        },
+        get: function(name) {
+            if(!arr) return;
+
+            var idx = indexLookup[name];
+
+            if(idx === undefined) {
+                return undefined;
+            } else if(isSimpleValueProp) {
+                return arr[idx][valueName];
+            } else {
+                return nestedProperty(arr[idx], valueName).get();
+            }
+        },
+        rename: function(name, newName) {
+            var idx = indexLookup[name];
+
+            if(idx === undefined) return obj;
+            changeTypes[idx] = changeTypes[idx] | NAME;
+
+            indexLookup[newName] = idx;
+            delete indexLookup[name];
+
+            arr[idx][keyName] = newName;
+
+            return obj;
+        },
+        remove: function(name) {
+            var idx = indexLookup[name];
+
+            if(idx === undefined) return obj;
+
+            var object = arr[idx];
+            if(Object.keys(object).length > 2) {
+                // This object contains more than just the key/value, so unset
+                // the value without modifying the entry otherwise:
+                changeTypes[idx] = changeTypes[idx] | VALUE;
+                return obj.set(name, null);
+            }
+
+            if(isSimpleValueProp) {
+                for(i = idx; i < arr.length; i++) {
+                    changeTypes[i] = changeTypes[i] | BOTH;
+                }
+                for(i = idx; i < arr.length; i++) {
+                    indexLookup[arr[i][keyName]]--;
+                }
+                arr.splice(idx, 1);
+                delete(indexLookup[name]);
+            } else {
+                // Perform this update *strictly* so we can check whether the result's
+                // been pruned. If so, it's a removal. If not, it's a value unset only.
+                nestedProperty(object, valueName).set(null);
+
+                // Now check if the top level nested property has any keys left. If so,
+                // the object still has values so we only want to unset the key. If not,
+                // the entire object can be removed since there's no other data.
+                // var topLevelKeys = Object.keys(object[valueName.split('.')[0]] || []);
+
+                changeTypes[idx] = changeTypes[idx] | VALUE | UNSET;
+            }
+
+            return obj;
+        },
+        constructUpdate: function() {
+            var astr, idx;
+            var update = {};
+            var changed = Object.keys(changeTypes);
+            for(var i = 0; i < changed.length; i++) {
+                idx = changed[i];
+                astr = path + '[' + idx + ']';
+                if(arr[idx]) {
+                    if(changeTypes[idx] & NAME) {
+                        update[astr + '.' + keyName] = arr[idx][keyName];
+                    }
+                    if(changeTypes[idx] & VALUE) {
+                        if(isSimpleValueProp) {
+                            update[astr + '.' + valueName] = (changeTypes[idx] & UNSET) ? null : arr[idx][valueName];
+                        } else {
+                            update[astr + '.' + valueName] = (changeTypes[idx] & UNSET) ? null : nestedProperty(arr[idx], valueName).get();
+                        }
+                    }
+                } else {
+                    update[astr] = null;
+                }
+            }
+
+            return update;
+        }
+    };
+
+    return obj;
+};
+
+
+/***/ }),
+/* 28 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+// ASCEND: chop off the last nesting level - either [<n>] or .<key> - to ascend
+// the attribute tree. the remaining attrString is in match[1]
+var ASCEND = /^(.*)(\.[^\.\[\]]+|\[\d\])$/;
+
+// SIMPLEATTR: is this an un-nested attribute? (no dots or brackets)
+var SIMPLEATTR = /^[^\.\[\]]+$/;
+
+/*
+ * calculate a relative attribute string, similar to a relative path
+ *
+ * @param {string} baseAttr:
+ *   an attribute string, such as 'annotations[3].x'. The "current location"
+ *   is the attribute string minus the last component ('annotations[3]')
+ * @param {string} relativeAttr:
+ *   a route to the desired attribute string, using '^' to ascend
+ *
+ * @return {string} attrString:
+ *   for example:
+ *     relativeAttr('annotations[3].x', 'y') = 'annotations[3].y'
+ *     relativeAttr('annotations[3].x', '^[2].z') = 'annotations[2].z'
+ *     relativeAttr('annotations[3].x', '^^margin') = 'margin'
+ *     relativeAttr('annotations[3].x', '^^margin.r') = 'margin.r'
+ */
+module.exports = function(baseAttr, relativeAttr) {
+    while(relativeAttr) {
+        var match = baseAttr.match(ASCEND);
+
+        if(match) baseAttr = match[1];
+        else if(baseAttr.match(SIMPLEATTR)) baseAttr = '';
+        else throw new Error('bad relativeAttr call:' + [baseAttr, relativeAttr]);
+
+        if(relativeAttr.charAt(0) === '^') relativeAttr = relativeAttr.slice(1);
+        else break;
+    }
+
+    if(baseAttr && relativeAttr.charAt(0) !== '[') {
+        return baseAttr + '.' + relativeAttr;
+    }
+    return baseAttr + relativeAttr;
+};
+
+
+/***/ }),
+/* 29 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var isNumeric = __webpack_require__(0);
+
+/**
+ * convert a linear value into a logged value, folding negative numbers into
+ * the given range
+ */
+module.exports = function toLogRange(val, range) {
+    if(val > 0) return Math.log(val) / Math.LN10;
+
+    // move a negative value reference to a log axis - just put the
+    // result at the lowest range value on the plot (or if the range also went negative,
+    // one millionth of the top of the range)
+    var newVal = Math.log(Math.min(range[0], range[1])) / Math.LN10;
+    if(!isNumeric(newVal)) newVal = Math.log(Math.max(range[0], range[1])) / Math.LN10 - 6;
+    return newVal;
+};
+
+
+/***/ }),
+/* 30 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var isArrayOrTypedArray = __webpack_require__(1).isArrayOrTypedArray;
+var isPlainObject = __webpack_require__(3);
+
+/**
+ * Relink private _keys and keys with a function value from one container
+ * to the new container.
+ * Relink means copying if object is pass-by-value and adding a reference
+ * if object is pass-by-ref.
+ * This prevents deepCopying massive structures like a webgl context.
+ */
+module.exports = function relinkPrivateKeys(toContainer, fromContainer) {
+    for(var k in fromContainer) {
+        var fromVal = fromContainer[k];
+        var toVal = toContainer[k];
+
+        if(toVal === fromVal) {
+            continue;
+        }
+        if(k.charAt(0) === '_' || typeof fromVal === 'function') {
+            // if it already exists at this point, it's something
+            // that we recreate each time around, so ignore it
+            if(k in toContainer) continue;
+
+            toContainer[k] = fromVal;
+        } else if(isArrayOrTypedArray(fromVal) && isArrayOrTypedArray(toVal) && isPlainObject(fromVal[0])) {
+            // filter out data_array items that can contain user objects
+            // most of the time the toVal === fromVal check will catch these early
+            // but if the user makes new ones we also don't want to recurse in.
+            if(k === 'customdata' || k === 'ids') continue;
+
+            // recurse into arrays containers
+            var minLen = Math.min(fromVal.length, toVal.length);
+            for(var j = 0; j < minLen; j++) {
+                if((toVal[j] !== fromVal[j]) && isPlainObject(fromVal[j]) && isPlainObject(toVal[j])) {
+                    relinkPrivateKeys(toVal[j], fromVal[j]);
+                }
+            }
+        } else if(isPlainObject(fromVal) && isPlainObject(toVal)) {
+            // recurse into objects, but only if they still exist
+            relinkPrivateKeys(toVal, fromVal);
+
+            if(!Object.keys(toVal).length) delete toContainer[k];
+        }
+    }
+};
+
+
+/***/ }),
+/* 31 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var isNumeric = __webpack_require__(0);
+var tinycolor = __webpack_require__(11);
+
+var baseTraceAttrs = __webpack_require__(12);
+var colorscales = __webpack_require__(35);
+var DESELECTDIM = __webpack_require__(36).DESELECTDIM;
+
+var nestedProperty = __webpack_require__(8);
+var counterRegex = __webpack_require__(13).counter;
+var modHalf = __webpack_require__(2).modHalf;
+var isArrayOrTypedArray = __webpack_require__(1).isArrayOrTypedArray;
+
+exports.valObjectMeta = {
+    data_array: {
+        // You can use *dflt=[] to force said array to exist though.
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt) {
+            // TODO maybe `v: {type: 'float32', vals: [/* ... */]}` also
+            if(isArrayOrTypedArray(v)) propOut.set(v);
+            else if(dflt !== undefined) propOut.set(dflt);
+        }
+    },
+    enumerated: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt, opts) {
+            if(opts.coerceNumber) v = +v;
+            if(opts.values.indexOf(v) === -1) propOut.set(dflt);
+            else propOut.set(v);
+        },
+        validateFunction: function(v, opts) {
+            if(opts.coerceNumber) v = +v;
+
+            var values = opts.values;
+            for(var i = 0; i < values.length; i++) {
+                var k = String(values[i]);
+
+                if((k.charAt(0) === '/' && k.charAt(k.length - 1) === '/')) {
+                    var regex = new RegExp(k.substr(1, k.length - 2));
+                    if(regex.test(v)) return true;
+                } else if(v === values[i]) return true;
+            }
+            return false;
+        }
+    },
+    'boolean': {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt) {
+            if(v === true || v === false) propOut.set(v);
+            else propOut.set(dflt);
+        }
+    },
+    number: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt, opts) {
+            if(!isNumeric(v) ||
+                    (opts.min !== undefined && v < opts.min) ||
+                    (opts.max !== undefined && v > opts.max)) {
+                propOut.set(dflt);
+            } else propOut.set(+v);
+        }
+    },
+    integer: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt, opts) {
+            if(v % 1 || !isNumeric(v) ||
+                    (opts.min !== undefined && v < opts.min) ||
+                    (opts.max !== undefined && v > opts.max)) {
+                propOut.set(dflt);
+            } else propOut.set(+v);
+        }
+    },
+    string: {
+        
+        
+        // TODO 'values shouldn't be in there (edge case: 'dash' in Scatter)
+        
+        coerceFunction: function(v, propOut, dflt, opts) {
+            if(typeof v !== 'string') {
+                var okToCoerce = (typeof v === 'number');
+
+                if(opts.strict === true || !okToCoerce) propOut.set(dflt);
+                else propOut.set(String(v));
+            } else if(opts.noBlank && !v) propOut.set(dflt);
+            else propOut.set(v);
+        }
+    },
+    color: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt) {
+            if(tinycolor(v).isValid()) propOut.set(v);
+            else propOut.set(dflt);
+        }
+    },
+    colorlist: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt) {
+            function isColor(color) {
+                return tinycolor(color).isValid();
+            }
+            if(!Array.isArray(v) || !v.length) propOut.set(dflt);
+            else if(v.every(isColor)) propOut.set(v);
+            else propOut.set(dflt);
+        }
+    },
+    colorscale: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt) {
+            propOut.set(colorscales.get(v, dflt));
+        }
+    },
+    angle: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt) {
+            if(v === 'auto') propOut.set('auto');
+            else if(!isNumeric(v)) propOut.set(dflt);
+            else propOut.set(modHalf(+v, 360));
+        }
+    },
+    subplotid: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt, opts) {
+            var regex = opts.regex || counterRegex(dflt);
+            if(typeof v === 'string' && regex.test(v)) {
+                propOut.set(v);
+                return;
+            }
+            propOut.set(dflt);
+        },
+        validateFunction: function(v, opts) {
+            var dflt = opts.dflt;
+
+            if(v === dflt) return true;
+            if(typeof v !== 'string') return false;
+            if(counterRegex(dflt).test(v)) return true;
+
+            return false;
+        }
+    },
+    flaglist: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt, opts) {
+            if(typeof v !== 'string') {
+                propOut.set(dflt);
+                return;
+            }
+            if((opts.extras || []).indexOf(v) !== -1) {
+                propOut.set(v);
+                return;
+            }
+            var vParts = v.split('+');
+            var i = 0;
+            while(i < vParts.length) {
+                var vi = vParts[i];
+                if(opts.flags.indexOf(vi) === -1 || vParts.indexOf(vi) < i) {
+                    vParts.splice(i, 1);
+                } else i++;
+            }
+            if(!vParts.length) propOut.set(dflt);
+            else propOut.set(vParts.join('+'));
+        }
+    },
+    any: {
+        
+        
+        
+        coerceFunction: function(v, propOut, dflt) {
+            if(v === undefined) propOut.set(dflt);
+            else propOut.set(v);
+        }
+    },
+    info_array: {
+        
+        
+        // set `dimensions=2` for a 2D array or '1-2' for either
+        // `items` may be a single object instead of an array, in which case
+        // `freeLength` must be true.
+        // if `dimensions='1-2'` and items is a 1D array, then the value can
+        // either be a matching 1D array or an array of such matching 1D arrays
+        
+        coerceFunction: function(v, propOut, dflt, opts) {
+            // simplified coerce function just for array items
+            function coercePart(v, opts, dflt) {
+                var out;
+                var propPart = {set: function(v) { out = v; }};
+
+                if(dflt === undefined) dflt = opts.dflt;
+
+                exports.valObjectMeta[opts.valType].coerceFunction(v, propPart, dflt, opts);
+
+                return out;
+            }
+
+            var twoD = opts.dimensions === 2 || (opts.dimensions === '1-2' && Array.isArray(v) && Array.isArray(v[0]));
+
+            if(!Array.isArray(v)) {
+                propOut.set(dflt);
+                return;
+            }
+
+            var items = opts.items;
+            var vOut = [];
+            var arrayItems = Array.isArray(items);
+            var arrayItems2D = arrayItems && twoD && Array.isArray(items[0]);
+            var innerItemsOnly = twoD && arrayItems && !arrayItems2D;
+            var len = (arrayItems && !innerItemsOnly) ? items.length : v.length;
+
+            var i, j, row, item, len2, vNew;
+
+            dflt = Array.isArray(dflt) ? dflt : [];
+
+            if(twoD) {
+                for(i = 0; i < len; i++) {
+                    vOut[i] = [];
+                    row = Array.isArray(v[i]) ? v[i] : [];
+                    if(innerItemsOnly) len2 = items.length;
+                    else if(arrayItems) len2 = items[i].length;
+                    else len2 = row.length;
+
+                    for(j = 0; j < len2; j++) {
+                        if(innerItemsOnly) item = items[j];
+                        else if(arrayItems) item = items[i][j];
+                        else item = items;
+
+                        vNew = coercePart(row[j], item, (dflt[i] || [])[j]);
+                        if(vNew !== undefined) vOut[i][j] = vNew;
+                    }
+                }
+            } else {
+                for(i = 0; i < len; i++) {
+                    vNew = coercePart(v[i], arrayItems ? items[i] : items, dflt[i]);
+                    if(vNew !== undefined) vOut[i] = vNew;
+                }
+            }
+
+            propOut.set(vOut);
+        },
+        validateFunction: function(v, opts) {
+            if(!Array.isArray(v)) return false;
+
+            var items = opts.items;
+            var arrayItems = Array.isArray(items);
+            var twoD = opts.dimensions === 2;
+
+            // when free length is off, input and declared lengths must match
+            if(!opts.freeLength && v.length !== items.length) return false;
+
+            // valid when all input items are valid
+            for(var i = 0; i < v.length; i++) {
+                if(twoD) {
+                    if(!Array.isArray(v[i]) || (!opts.freeLength && v[i].length !== items[i].length)) {
+                        return false;
+                    }
+                    for(var j = 0; j < v[i].length; j++) {
+                        if(!validate(v[i][j], arrayItems ? items[i][j] : items)) {
+                            return false;
+                        }
+                    }
+                } else if(!validate(v[i], arrayItems ? items[i] : items)) return false;
+            }
+
+            return true;
+        }
+    }
+};
+
+/**
+ * Ensures that container[attribute] has a valid value.
+ *
+ * attributes[attribute] is an object with possible keys:
+ * - valType: data_array, enumerated, boolean, ... as in valObjectMeta
+ * - values: (enumerated only) array of allowed vals
+ * - min, max: (number, integer only) inclusive bounds on allowed vals
+ *      either or both may be omitted
+ * - dflt: if attribute is invalid or missing, use this default
+ *      if dflt is provided as an argument to lib.coerce it takes precedence
+ *      as a convenience, returns the value it finally set
+ */
+exports.coerce = function(containerIn, containerOut, attributes, attribute, dflt) {
+    var opts = nestedProperty(attributes, attribute).get();
+    var propIn = nestedProperty(containerIn, attribute);
+    var propOut = nestedProperty(containerOut, attribute);
+    var v = propIn.get();
+
+    var template = containerOut._template;
+    if(v === undefined && template) {
+        v = nestedProperty(template, attribute).get();
+        // already used the template value, so short-circuit the second check
+        template = 0;
+    }
+
+    if(dflt === undefined) dflt = opts.dflt;
+
+    /**
+     * arrayOk: value MAY be an array, then we do no value checking
+     * at this point, because it can be more complicated than the
+     * individual form (eg. some array vals can be numbers, even if the
+     * single values must be color strings)
+     */
+    if(opts.arrayOk && isArrayOrTypedArray(v)) {
+        propOut.set(v);
+        return v;
+    }
+
+    var coerceFunction = exports.valObjectMeta[opts.valType].coerceFunction;
+    coerceFunction(v, propOut, dflt, opts);
+
+    var out = propOut.get();
+    // in case v was provided but invalid, try the template again so it still
+    // overrides the regular default
+    if(template && out === dflt && !validate(v, opts)) {
+        v = nestedProperty(template, attribute).get();
+        coerceFunction(v, propOut, dflt, opts);
+        out = propOut.get();
+    }
+    return out;
+};
+
+/**
+ * Variation on coerce
+ *
+ * Uses coerce to get attribute value if user input is valid,
+ * returns attribute default if user input it not valid or
+ * returns false if there is no user input.
+ */
+exports.coerce2 = function(containerIn, containerOut, attributes, attribute, dflt) {
+    var propIn = nestedProperty(containerIn, attribute);
+    var propOut = exports.coerce(containerIn, containerOut, attributes, attribute, dflt);
+    var valIn = propIn.get();
+
+    return (valIn !== undefined && valIn !== null) ? propOut : false;
+};
+
+/*
+ * Shortcut to coerce the three font attributes
+ *
+ * 'coerce' is a lib.coerce wrapper with implied first three arguments
+ */
+exports.coerceFont = function(coerce, attr, dfltObj) {
+    var out = {};
+
+    dfltObj = dfltObj || {};
+
+    out.family = coerce(attr + '.family', dfltObj.family);
+    out.size = coerce(attr + '.size', dfltObj.size);
+    out.color = coerce(attr + '.color', dfltObj.color);
+
+    return out;
+};
+
+/** Coerce shortcut for 'hoverinfo'
+ * handling 1-vs-multi-trace dflt logic
+ *
+ * @param {object} traceIn : user trace object
+ * @param {object} traceOut : full trace object (requires _module ref)
+ * @param {object} layoutOut : full layout object (require _dataLength ref)
+ * @return {any} : the coerced value
+ */
+exports.coerceHoverinfo = function(traceIn, traceOut, layoutOut) {
+    var moduleAttrs = traceOut._module.attributes;
+    var attrs = moduleAttrs.hoverinfo ? moduleAttrs : baseTraceAttrs;
+
+    var valObj = attrs.hoverinfo;
+    var dflt;
+
+    if(layoutOut._dataLength === 1) {
+        var flags = valObj.dflt === 'all' ?
+            valObj.flags.slice() :
+            valObj.dflt.split('+');
+
+        flags.splice(flags.indexOf('name'), 1);
+        dflt = flags.join('+');
+    }
+
+    return exports.coerce(traceIn, traceOut, attrs, 'hoverinfo', dflt);
+};
+
+/** Coerce shortcut for [un]selected.marker.opacity,
+ *  which has special default logic, to ensure that it corresponds to the
+ *  default selection behavior while allowing to be overtaken by any other
+ *  [un]selected attribute.
+ *
+ *  N.B. This must be called *after* coercing all the other [un]selected attrs,
+ *  to give the intended result.
+ *
+ * @param {object} traceOut : fullData item
+ * @param {function} coerce : lib.coerce wrapper with implied first three arguments
+ */
+exports.coerceSelectionMarkerOpacity = function(traceOut, coerce) {
+    if(!traceOut.marker) return;
+
+    var mo = traceOut.marker.opacity;
+    // you can still have a `marker` container with no markers if there's text
+    if(mo === undefined) return;
+
+    var smoDflt;
+    var usmoDflt;
+
+    // Don't give [un]selected.marker.opacity a default value if
+    // marker.opacity is an array: handle this during style step.
+    //
+    // Only give [un]selected.marker.opacity a default value if you don't
+    // set any other [un]selected attributes.
+    if(!isArrayOrTypedArray(mo) && !traceOut.selected && !traceOut.unselected) {
+        smoDflt = mo;
+        usmoDflt = DESELECTDIM * mo;
+    }
+
+    coerce('selected.marker.opacity', smoDflt);
+    coerce('unselected.marker.opacity', usmoDflt);
+};
+
+function validate(value, opts) {
+    var valObjectDef = exports.valObjectMeta[opts.valType];
+
+    if(opts.arrayOk && isArrayOrTypedArray(value)) return true;
+
+    if(valObjectDef.validateFunction) {
+        return valObjectDef.validateFunction(value, opts);
+    }
+
+    var failed = {};
+    var out = failed;
+    var propMock = { set: function(v) { out = v; } };
+
+    // 'failed' just something mutable that won't be === anything else
+
+    valObjectDef.coerceFunction(value, propMock, failed, opts);
+    return out !== failed;
+}
+exports.validate = validate;
+
+
+/***/ }),
+/* 32 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var fontAttrs = __webpack_require__(9);
+var hoverLabelAttrs = __webpack_require__(33).hoverlabel;
+var extendFlat = __webpack_require__(4).extendFlat;
+
+module.exports = {
+    hoverlabel: {
+        bgcolor: extendFlat({}, hoverLabelAttrs.bgcolor, {
+            arrayOk: true,
+            
+        }),
+        bordercolor: extendFlat({}, hoverLabelAttrs.bordercolor, {
+            arrayOk: true,
+            
+        }),
+        font: fontAttrs({
+            arrayOk: true,
+            editType: 'none',
+            
+        }),
+        align: extendFlat({}, hoverLabelAttrs.align, {arrayOk: true}),
+        namelength: extendFlat({}, hoverLabelAttrs.namelength, {arrayOk: true}),
+        editType: 'none'
+    }
+};
+
+
+/***/ }),
+/* 33 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var constants = __webpack_require__(34);
+
+var fontAttrs = __webpack_require__(9)({
+    editType: 'none',
+    
+});
+fontAttrs.family.dflt = constants.HOVERFONT;
+fontAttrs.size.dflt = constants.HOVERFONTSIZE;
+
+module.exports = {
+    clickmode: {
+        valType: 'flaglist',
+        
+        flags: ['event', 'select'],
+        dflt: 'event',
+        editType: 'plot',
+        extras: ['none'],
+        
+    },
+    dragmode: {
+        valType: 'enumerated',
+        
+        values: ['zoom', 'pan', 'select', 'lasso', 'orbit', 'turntable', false],
+        dflt: 'zoom',
+        editType: 'modebar',
+        
+    },
+    hovermode: {
+        valType: 'enumerated',
+        
+        values: ['x', 'y', 'closest', false],
+        editType: 'modebar',
+        
+    },
+    hoverdistance: {
+        valType: 'integer',
+        min: -1,
+        dflt: 20,
+        
+        editType: 'none',
+        
+    },
+    spikedistance: {
+        valType: 'integer',
+        min: -1,
+        dflt: 20,
+        
+        editType: 'none',
+        
+    },
+    hoverlabel: {
+        bgcolor: {
+            valType: 'color',
+            
+            editType: 'none',
+            
+        },
+        bordercolor: {
+            valType: 'color',
+            
+            editType: 'none',
+            
+        },
+        font: fontAttrs,
+        align: {
+            valType: 'enumerated',
+            values: ['left', 'right', 'auto'],
+            dflt: 'auto',
+            
+            editType: 'none',
+            
+        },
+        namelength: {
+            valType: 'integer',
+            min: -1,
+            dflt: 15,
+            
+            editType: 'none',
+            
+        },
+        editType: 'none'
+    },
+    selectdirection: {
+        valType: 'enumerated',
+        
+        values: ['h', 'v', 'd', 'any'],
+        dflt: 'any',
+        
+        editType: 'none'
+    }
+};
+
+
+/***/ }),
+/* 34 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+module.exports = {
+    // hover labels for multiple horizontal bars get tilted by this angle
+    YANGLE: 60,
+
+    // size and display constants for hover text
+
+    // pixel size of hover arrows
+    HOVERARROWSIZE: 6,
+    // pixels padding around text
+    HOVERTEXTPAD: 3,
+    // hover font
+    HOVERFONTSIZE: 13,
+    HOVERFONT: 'Arial, sans-serif',
+
+    // minimum time (msec) between hover calls
+    HOVERMINTIME: 50,
+
+    // ID suffix (with fullLayout._uid) for hover events in the throttle cache
+    HOVERID: '-hover'
+};
+
+
+/***/ }),
+/* 35 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var tinycolor = __webpack_require__(11);
+
+var scales = {
+    'Greys': [
+        [0, 'rgb(0,0,0)'], [1, 'rgb(255,255,255)']
+    ],
+
+    'YlGnBu': [
+        [0, 'rgb(8,29,88)'], [0.125, 'rgb(37,52,148)'],
+        [0.25, 'rgb(34,94,168)'], [0.375, 'rgb(29,145,192)'],
+        [0.5, 'rgb(65,182,196)'], [0.625, 'rgb(127,205,187)'],
+        [0.75, 'rgb(199,233,180)'], [0.875, 'rgb(237,248,217)'],
+        [1, 'rgb(255,255,217)']
+    ],
+
+    'Greens': [
+        [0, 'rgb(0,68,27)'], [0.125, 'rgb(0,109,44)'],
+        [0.25, 'rgb(35,139,69)'], [0.375, 'rgb(65,171,93)'],
+        [0.5, 'rgb(116,196,118)'], [0.625, 'rgb(161,217,155)'],
+        [0.75, 'rgb(199,233,192)'], [0.875, 'rgb(229,245,224)'],
+        [1, 'rgb(247,252,245)']
+    ],
+
+    'YlOrRd': [
+        [0, 'rgb(128,0,38)'], [0.125, 'rgb(189,0,38)'],
+        [0.25, 'rgb(227,26,28)'], [0.375, 'rgb(252,78,42)'],
+        [0.5, 'rgb(253,141,60)'], [0.625, 'rgb(254,178,76)'],
+        [0.75, 'rgb(254,217,118)'], [0.875, 'rgb(255,237,160)'],
+        [1, 'rgb(255,255,204)']
+    ],
+
+    'Bluered': [
+        [0, 'rgb(0,0,255)'], [1, 'rgb(255,0,0)']
+    ],
+
+    // modified RdBu based on
+    // http://www.kennethmoreland.com/color-maps/
+    'RdBu': [
+        [0, 'rgb(5,10,172)'], [0.35, 'rgb(106,137,247)'],
+        [0.5, 'rgb(190,190,190)'], [0.6, 'rgb(220,170,132)'],
+        [0.7, 'rgb(230,145,90)'], [1, 'rgb(178,10,28)']
+    ],
+
+    // Scale for non-negative numeric values
+    'Reds': [
+        [0, 'rgb(220,220,220)'], [0.2, 'rgb(245,195,157)'],
+        [0.4, 'rgb(245,160,105)'], [1, 'rgb(178,10,28)']
+    ],
+
+    // Scale for non-positive numeric values
+    'Blues': [
+        [0, 'rgb(5,10,172)'], [0.35, 'rgb(40,60,190)'],
+        [0.5, 'rgb(70,100,245)'], [0.6, 'rgb(90,120,245)'],
+        [0.7, 'rgb(106,137,247)'], [1, 'rgb(220,220,220)']
+    ],
+
+    'Picnic': [
+        [0, 'rgb(0,0,255)'], [0.1, 'rgb(51,153,255)'],
+        [0.2, 'rgb(102,204,255)'], [0.3, 'rgb(153,204,255)'],
+        [0.4, 'rgb(204,204,255)'], [0.5, 'rgb(255,255,255)'],
+        [0.6, 'rgb(255,204,255)'], [0.7, 'rgb(255,153,255)'],
+        [0.8, 'rgb(255,102,204)'], [0.9, 'rgb(255,102,102)'],
+        [1, 'rgb(255,0,0)']
+    ],
+
+    'Rainbow': [
+        [0, 'rgb(150,0,90)'], [0.125, 'rgb(0,0,200)'],
+        [0.25, 'rgb(0,25,255)'], [0.375, 'rgb(0,152,255)'],
+        [0.5, 'rgb(44,255,150)'], [0.625, 'rgb(151,255,0)'],
+        [0.75, 'rgb(255,234,0)'], [0.875, 'rgb(255,111,0)'],
+        [1, 'rgb(255,0,0)']
+    ],
+
+    'Portland': [
+        [0, 'rgb(12,51,131)'], [0.25, 'rgb(10,136,186)'],
+        [0.5, 'rgb(242,211,56)'], [0.75, 'rgb(242,143,56)'],
+        [1, 'rgb(217,30,30)']
+    ],
+
+    'Jet': [
+        [0, 'rgb(0,0,131)'], [0.125, 'rgb(0,60,170)'],
+        [0.375, 'rgb(5,255,255)'], [0.625, 'rgb(255,255,0)'],
+        [0.875, 'rgb(250,0,0)'], [1, 'rgb(128,0,0)']
+    ],
+
+    'Hot': [
+        [0, 'rgb(0,0,0)'], [0.3, 'rgb(230,0,0)'],
+        [0.6, 'rgb(255,210,0)'], [1, 'rgb(255,255,255)']
+    ],
+
+    'Blackbody': [
+        [0, 'rgb(0,0,0)'], [0.2, 'rgb(230,0,0)'],
+        [0.4, 'rgb(230,210,0)'], [0.7, 'rgb(255,255,255)'],
+        [1, 'rgb(160,200,255)']
+    ],
+
+    'Earth': [
+        [0, 'rgb(0,0,130)'], [0.1, 'rgb(0,180,180)'],
+        [0.2, 'rgb(40,210,40)'], [0.4, 'rgb(230,230,50)'],
+        [0.6, 'rgb(120,70,20)'], [1, 'rgb(255,255,255)']
+    ],
+
+    'Electric': [
+        [0, 'rgb(0,0,0)'], [0.15, 'rgb(30,0,100)'],
+        [0.4, 'rgb(120,0,100)'], [0.6, 'rgb(160,90,0)'],
+        [0.8, 'rgb(230,200,0)'], [1, 'rgb(255,250,220)']
+    ],
+
+    'Viridis': [
+        [0, '#440154'], [0.06274509803921569, '#48186a'],
+        [0.12549019607843137, '#472d7b'], [0.18823529411764706, '#424086'],
+        [0.25098039215686274, '#3b528b'], [0.3137254901960784, '#33638d'],
+        [0.3764705882352941, '#2c728e'], [0.4392156862745098, '#26828e'],
+        [0.5019607843137255, '#21918c'], [0.5647058823529412, '#1fa088'],
+        [0.6274509803921569, '#28ae80'], [0.6901960784313725, '#3fbc73'],
+        [0.7529411764705882, '#5ec962'], [0.8156862745098039, '#84d44b'],
+        [0.8784313725490196, '#addc30'], [0.9411764705882353, '#d8e219'],
+        [1, '#fde725']
+    ],
+
+    'Cividis': [
+        [0.000000, 'rgb(0,32,76)'], [0.058824, 'rgb(0,42,102)'],
+        [0.117647, 'rgb(0,52,110)'], [0.176471, 'rgb(39,63,108)'],
+        [0.235294, 'rgb(60,74,107)'], [0.294118, 'rgb(76,85,107)'],
+        [0.352941, 'rgb(91,95,109)'], [0.411765, 'rgb(104,106,112)'],
+        [0.470588, 'rgb(117,117,117)'], [0.529412, 'rgb(131,129,120)'],
+        [0.588235, 'rgb(146,140,120)'], [0.647059, 'rgb(161,152,118)'],
+        [0.705882, 'rgb(176,165,114)'], [0.764706, 'rgb(192,177,109)'],
+        [0.823529, 'rgb(209,191,102)'], [0.882353, 'rgb(225,204,92)'],
+        [0.941176, 'rgb(243,219,79)'], [1.000000, 'rgb(255,233,69)']
+    ]
+};
+
+var defaultScale = scales.RdBu;
+
+function getScale(scl, dflt) {
+    if(!dflt) dflt = defaultScale;
+    if(!scl) return dflt;
+
+    function parseScale() {
+        try {
+            scl = scales[scl] || JSON.parse(scl);
+        } catch(e) {
+            scl = dflt;
+        }
+    }
+
+    if(typeof scl === 'string') {
+        parseScale();
+        // occasionally scl is double-JSON encoded...
+        if(typeof scl === 'string') parseScale();
+    }
+
+    if(!isValidScaleArray(scl)) return dflt;
+    return scl;
+}
+
+
+function isValidScaleArray(scl) {
+    var highestVal = 0;
+
+    if(!Array.isArray(scl) || scl.length < 2) return false;
+
+    if(!scl[0] || !scl[scl.length - 1]) return false;
+
+    if(+scl[0][0] !== 0 || +scl[scl.length - 1][0] !== 1) return false;
+
+    for(var i = 0; i < scl.length; i++) {
+        var si = scl[i];
+
+        if(si.length !== 2 || +si[0] < highestVal || !tinycolor(si[1]).isValid()) {
+            return false;
+        }
+
+        highestVal = +si[0];
+    }
+
+    return true;
+}
+
+function isValidScale(scl) {
+    if(scales[scl] !== undefined) return true;
+    else return isValidScaleArray(scl);
+}
+
+module.exports = {
+    scales: scales,
+    defaultScale: defaultScale,
+
+    get: getScale,
+    isValid: isValidScale
+};
+
+
+/***/ }),
+/* 36 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+module.exports = {
+    /**
+     * Timing information for interactive elements
+     */
+    SHOW_PLACEHOLDER: 100,
+    HIDE_PLACEHOLDER: 1000,
+
+    // ms between first mousedown and 2nd mouseup to constitute dblclick...
+    // we don't seem to have access to the system setting
+    DBLCLICKDELAY: 300,
+
+    // opacity dimming fraction for points that are not in selection
+    DESELECTDIM: 0.2
+};
+
+
+/***/ }),
+/* 37 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var d3 = __webpack_require__(6);
+var isNumeric = __webpack_require__(0);
+
+var Loggers = __webpack_require__(5);
+var mod = __webpack_require__(2).mod;
+
+var constants = __webpack_require__(7);
+var BADNUM = constants.BADNUM;
+var ONEDAY = constants.ONEDAY;
+var ONEHOUR = constants.ONEHOUR;
+var ONEMIN = constants.ONEMIN;
+var ONESEC = constants.ONESEC;
+var EPOCHJD = constants.EPOCHJD;
+
+var Registry = __webpack_require__(14);
+
+var utcFormat = d3.time.format.utc;
+
+var DATETIME_REGEXP = /^\s*(-?\d\d\d\d|\d\d)(-(\d?\d)(-(\d?\d)([ Tt]([01]?\d|2[0-3])(:([0-5]\d)(:([0-5]\d(\.\d+)?))?(Z|z|[+\-]\d\d:?\d\d)?)?)?)?)?\s*$/m;
+// special regex for chinese calendars to support yyyy-mmi-dd etc for intercalary months
+var DATETIME_REGEXP_CN = /^\s*(-?\d\d\d\d|\d\d)(-(\d?\di?)(-(\d?\d)([ Tt]([01]?\d|2[0-3])(:([0-5]\d)(:([0-5]\d(\.\d+)?))?(Z|z|[+\-]\d\d:?\d\d)?)?)?)?)?\s*$/m;
+
+// for 2-digit years, the first year we map them onto
+var YFIRST = new Date().getFullYear() - 70;
+
+function isWorldCalendar(calendar) {
+    return (
+        calendar &&
+        Registry.componentsRegistry.calendars &&
+        typeof calendar === 'string' && calendar !== 'gregorian'
+    );
+}
+
+/*
+ * dateTick0: get the canonical tick for this calendar
+ *
+ * bool sunday is for week ticks, shift it to a Sunday.
+ */
+exports.dateTick0 = function(calendar, sunday) {
+    if(isWorldCalendar(calendar)) {
+        return sunday ?
+            Registry.getComponentMethod('calendars', 'CANONICAL_SUNDAY')[calendar] :
+            Registry.getComponentMethod('calendars', 'CANONICAL_TICK')[calendar];
+    } else {
+        return sunday ? '2000-01-02' : '2000-01-01';
+    }
+};
+
+/*
+ * dfltRange: for each calendar, give a valid default range
+ */
+exports.dfltRange = function(calendar) {
+    if(isWorldCalendar(calendar)) {
+        return Registry.getComponentMethod('calendars', 'DFLTRANGE')[calendar];
+    } else {
+        return ['2000-01-01', '2001-01-01'];
+    }
+};
+
+// is an object a javascript date?
+exports.isJSDate = function(v) {
+    return typeof v === 'object' && v !== null && typeof v.getTime === 'function';
+};
+
+// The absolute limits of our date-time system
+// This is a little weird: we use MIN_MS and MAX_MS in dateTime2ms
+// but we use dateTime2ms to calculate them (after defining it!)
+var MIN_MS, MAX_MS;
+
+/**
+ * dateTime2ms - turn a date object or string s into milliseconds
+ * (relative to 1970-01-01, per javascript standard)
+ * optional calendar (string) to use a non-gregorian calendar
+ *
+ * Returns BADNUM if it doesn't find a date
+ *
+ * strings should have the form:
+ *
+ *    -?YYYY-mm-dd<sep>HH:MM:SS.sss<tzInfo>?
+ *
+ * <sep>: space (our normal standard) or T or t (ISO-8601)
+ * <tzInfo>: Z, z, or [+\-]HH:?MM and we THROW IT AWAY
+ * this format comes from https://tools.ietf.org/html/rfc3339#section-5.6
+ * but we allow it even with a space as the separator
+ *
+ * May truncate after any full field, and sss can be any length
+ * even >3 digits, though javascript dates truncate to milliseconds,
+ * we keep as much as javascript numeric precision can hold, but we only
+ * report back up to 100 microsecond precision, because most dates support
+ * this precision (close to 1970 support more, very far away support less)
+ *
+ * Expanded to support negative years to -9999 but you must always
+ * give 4 digits, except for 2-digit positive years which we assume are
+ * near the present time.
+ * Note that we follow ISO 8601:2004: there *is* a year 0, which
+ * is 1BC/BCE, and -1===2BC etc.
+ *
+ * World calendars: not all of these *have* agreed extensions to this full range,
+ * if you have another calendar system but want a date range outside its validity,
+ * you can use a gregorian date string prefixed with 'G' or 'g'.
+ *
+ * Where to cut off 2-digit years between 1900s and 2000s?
+ * from http://support.microsoft.com/kb/244664:
+ *   1930-2029 (the most retro of all...)
+ * but in my mac chrome from eg. d=new Date(Date.parse('8/19/50')):
+ *   1950-2049
+ * by Java, from http://stackoverflow.com/questions/2024273/:
+ *   now-80 - now+19
+ * or FileMaker Pro, from
+ *      http://www.filemaker.com/12help/html/add_view_data.4.21.html:
+ *   now-70 - now+29
+ * but python strptime etc, via
+ *      http://docs.python.org/py3k/library/time.html:
+ *   1969-2068 (super forward-looking, but static, not sliding!)
+ *
+ * lets go with now-70 to now+29, and if anyone runs into this problem
+ * they can learn the hard way not to use 2-digit years, as no choice we
+ * make now will cover all possibilities. mostly this will all be taken
+ * care of in initial parsing, should only be an issue for hand-entered data
+ * currently (2016) this range is:
+ *   1946-2045
+ */
+exports.dateTime2ms = function(s, calendar) {
+    // first check if s is a date object
+    if(exports.isJSDate(s)) {
+        // Convert to the UTC milliseconds that give the same
+        // hours as this date has in the local timezone
+        var tzOffset = s.getTimezoneOffset() * ONEMIN;
+        var offsetTweak = (s.getUTCMinutes() - s.getMinutes()) * ONEMIN +
+            (s.getUTCSeconds() - s.getSeconds()) * ONESEC +
+            (s.getUTCMilliseconds() - s.getMilliseconds());
+
+        if(offsetTweak) {
+            var comb = 3 * ONEMIN;
+            tzOffset = tzOffset - comb / 2 + mod(offsetTweak - tzOffset + comb / 2, comb);
+        }
+        s = Number(s) - tzOffset;
+        if(s >= MIN_MS && s <= MAX_MS) return s;
+        return BADNUM;
+    }
+    // otherwise only accept strings and numbers
+    if(typeof s !== 'string' && typeof s !== 'number') return BADNUM;
+
+    s = String(s);
+
+    var isWorld = isWorldCalendar(calendar);
+
+    // to handle out-of-range dates in international calendars, accept
+    // 'G' as a prefix to force the built-in gregorian calendar.
+    var s0 = s.charAt(0);
+    if(isWorld && (s0 === 'G' || s0 === 'g')) {
+        s = s.substr(1);
+        calendar = '';
+    }
+
+    var isChinese = isWorld && calendar.substr(0, 7) === 'chinese';
+
+    var match = s.match(isChinese ? DATETIME_REGEXP_CN : DATETIME_REGEXP);
+    if(!match) return BADNUM;
+    var y = match[1];
+    var m = match[3] || '1';
+    var d = Number(match[5] || 1);
+    var H = Number(match[7] || 0);
+    var M = Number(match[9] || 0);
+    var S = Number(match[11] || 0);
+
+    if(isWorld) {
+        // disallow 2-digit years for world calendars
+        if(y.length === 2) return BADNUM;
+        y = Number(y);
+
+        var cDate;
+        try {
+            var calInstance = Registry.getComponentMethod('calendars', 'getCal')(calendar);
+            if(isChinese) {
+                var isIntercalary = m.charAt(m.length - 1) === 'i';
+                m = parseInt(m, 10);
+                cDate = calInstance.newDate(y, calInstance.toMonthIndex(y, m, isIntercalary), d);
+            } else {
+                cDate = calInstance.newDate(y, Number(m), d);
+            }
+        } catch(e) { return BADNUM; } // Invalid ... date
+
+        if(!cDate) return BADNUM;
+
+        return ((cDate.toJD() - EPOCHJD) * ONEDAY) +
+            (H * ONEHOUR) + (M * ONEMIN) + (S * ONESEC);
+    }
+
+    if(y.length === 2) {
+        y = (Number(y) + 2000 - YFIRST) % 100 + YFIRST;
+    } else y = Number(y);
+
+    // new Date uses months from 0; subtract 1 here just so we
+    // don't have to do it again during the validity test below
+    m -= 1;
+
+    // javascript takes new Date(0..99,m,d) to mean 1900-1999, so
+    // to support years 0-99 we need to use setFullYear explicitly
+    // Note that 2000 is a leap year.
+    var date = new Date(Date.UTC(2000, m, d, H, M));
+    date.setUTCFullYear(y);
+
+    if(date.getUTCMonth() !== m) return BADNUM;
+    if(date.getUTCDate() !== d) return BADNUM;
+
+    return date.getTime() + S * ONESEC;
+};
+
+MIN_MS = exports.MIN_MS = exports.dateTime2ms('-9999');
+MAX_MS = exports.MAX_MS = exports.dateTime2ms('9999-12-31 23:59:59.9999');
+
+// is string s a date? (see above)
+exports.isDateTime = function(s, calendar) {
+    return (exports.dateTime2ms(s, calendar) !== BADNUM);
+};
+
+// pad a number with zeroes, to given # of digits before the decimal point
+function lpad(val, digits) {
+    return String(val + Math.pow(10, digits)).substr(1);
+}
+
+/**
+ * Turn ms into string of the form YYYY-mm-dd HH:MM:SS.ssss
+ * Crop any trailing zeros in time, except never stop right after hours
+ * (we could choose to crop '-01' from date too but for now we always
+ * show the whole date)
+ * Optional range r is the data range that applies, also in ms.
+ * If rng is big, the later parts of time will be omitted
+ */
+var NINETYDAYS = 90 * ONEDAY;
+var THREEHOURS = 3 * ONEHOUR;
+var FIVEMIN = 5 * ONEMIN;
+exports.ms2DateTime = function(ms, r, calendar) {
+    if(typeof ms !== 'number' || !(ms >= MIN_MS && ms <= MAX_MS)) return BADNUM;
+
+    if(!r) r = 0;
+
+    var msecTenths = Math.floor(mod(ms + 0.05, 1) * 10);
+    var msRounded = Math.round(ms - msecTenths / 10);
+    var dateStr, h, m, s, msec10, d;
+
+    if(isWorldCalendar(calendar)) {
+        var dateJD = Math.floor(msRounded / ONEDAY) + EPOCHJD;
+        var timeMs = Math.floor(mod(ms, ONEDAY));
+        try {
+            dateStr = Registry.getComponentMethod('calendars', 'getCal')(calendar)
+                .fromJD(dateJD).formatDate('yyyy-mm-dd');
+        } catch(e) {
+            // invalid date in this calendar - fall back to Gyyyy-mm-dd
+            dateStr = utcFormat('G%Y-%m-%d')(new Date(msRounded));
+        }
+
+        // yyyy does NOT guarantee 4-digit years. YYYY mostly does, but does
+        // other things for a few calendars, so we can't trust it. Just pad
+        // it manually (after the '-' if there is one)
+        if(dateStr.charAt(0) === '-') {
+            while(dateStr.length < 11) dateStr = '-0' + dateStr.substr(1);
+        } else {
+            while(dateStr.length < 10) dateStr = '0' + dateStr;
+        }
+
+        // TODO: if this is faster, we could use this block for extracting
+        // the time components of regular gregorian too
+        h = (r < NINETYDAYS) ? Math.floor(timeMs / ONEHOUR) : 0;
+        m = (r < NINETYDAYS) ? Math.floor((timeMs % ONEHOUR) / ONEMIN) : 0;
+        s = (r < THREEHOURS) ? Math.floor((timeMs % ONEMIN) / ONESEC) : 0;
+        msec10 = (r < FIVEMIN) ? (timeMs % ONESEC) * 10 + msecTenths : 0;
+    } else {
+        d = new Date(msRounded);
+
+        dateStr = utcFormat('%Y-%m-%d')(d);
+
+        // <90 days: add hours and minutes - never *only* add hours
+        h = (r < NINETYDAYS) ? d.getUTCHours() : 0;
+        m = (r < NINETYDAYS) ? d.getUTCMinutes() : 0;
+        // <3 hours: add seconds
+        s = (r < THREEHOURS) ? d.getUTCSeconds() : 0;
+        // <5 minutes: add ms (plus one extra digit, this is msec*10)
+        msec10 = (r < FIVEMIN) ? d.getUTCMilliseconds() * 10 + msecTenths : 0;
+    }
+
+    return includeTime(dateStr, h, m, s, msec10);
+};
+
+// For converting old-style milliseconds to date strings,
+// we use the local timezone rather than UTC like we use
+// everywhere else, both for backward compatibility and
+// because that's how people mostly use javasript date objects.
+// Clip one extra day off our date range though so we can't get
+// thrown beyond the range by the timezone shift.
+exports.ms2DateTimeLocal = function(ms) {
+    if(!(ms >= MIN_MS + ONEDAY && ms <= MAX_MS - ONEDAY)) return BADNUM;
+
+    var msecTenths = Math.floor(mod(ms + 0.05, 1) * 10);
+    var d = new Date(Math.round(ms - msecTenths / 10));
+    var dateStr = d3.time.format('%Y-%m-%d')(d);
+    var h = d.getHours();
+    var m = d.getMinutes();
+    var s = d.getSeconds();
+    var msec10 = d.getUTCMilliseconds() * 10 + msecTenths;
+
+    return includeTime(dateStr, h, m, s, msec10);
+};
+
+function includeTime(dateStr, h, m, s, msec10) {
+    // include each part that has nonzero data in or after it
+    if(h || m || s || msec10) {
+        dateStr += ' ' + lpad(h, 2) + ':' + lpad(m, 2);
+        if(s || msec10) {
+            dateStr += ':' + lpad(s, 2);
+            if(msec10) {
+                var digits = 4;
+                while(msec10 % 10 === 0) {
+                    digits -= 1;
+                    msec10 /= 10;
+                }
+                dateStr += '.' + lpad(msec10, digits);
+            }
+        }
+    }
+    return dateStr;
+}
+
+// normalize date format to date string, in case it starts as
+// a Date object or milliseconds
+// optional dflt is the return value if cleaning fails
+exports.cleanDate = function(v, dflt, calendar) {
+    // let us use cleanDate to provide a missing default without an error
+    if(v === BADNUM) return dflt;
+    if(exports.isJSDate(v) || (typeof v === 'number' && isFinite(v))) {
+        // do not allow milliseconds (old) or jsdate objects (inherently
+        // described as gregorian dates) with world calendars
+        if(isWorldCalendar(calendar)) {
+            Loggers.error('JS Dates and milliseconds are incompatible with world calendars', v);
+            return dflt;
+        }
+
+        // NOTE: if someone puts in a year as a number rather than a string,
+        // this will mistakenly convert it thinking it's milliseconds from 1970
+        // that is: '2012' -> Jan. 1, 2012, but 2012 -> 2012 epoch milliseconds
+        v = exports.ms2DateTimeLocal(+v);
+        if(!v && dflt !== undefined) return dflt;
+    } else if(!exports.isDateTime(v, calendar)) {
+        Loggers.error('unrecognized date', v);
+        return dflt;
+    }
+    return v;
+};
+
+/*
+ *  Date formatting for ticks and hovertext
+ */
+
+/*
+ * modDateFormat: Support world calendars, and add one item to
+ * d3's vocabulary:
+ * %{n}f where n is the max number of digits of fractional seconds
+ */
+var fracMatch = /%\d?f/g;
+function modDateFormat(fmt, x, formatter, calendar) {
+    fmt = fmt.replace(fracMatch, function(match) {
+        var digits = Math.min(+(match.charAt(1)) || 6, 6);
+        var fracSecs = ((x / 1000 % 1) + 2)
+            .toFixed(digits)
+            .substr(2).replace(/0+$/, '') || '0';
+        return fracSecs;
+    });
+
+    var d = new Date(Math.floor(x + 0.05));
+
+    if(isWorldCalendar(calendar)) {
+        try {
+            fmt = Registry.getComponentMethod('calendars', 'worldCalFmt')(fmt, x, calendar);
+        } catch(e) {
+            return 'Invalid';
+        }
+    }
+    return formatter(fmt)(d);
+}
+
+/*
+ * formatTime: create a time string from:
+ *   x: milliseconds
+ *   tr: tickround ('M', 'S', or # digits)
+ * only supports UTC times (where every day is 24 hours and 0 is at midnight)
+ */
+var MAXSECONDS = [59, 59.9, 59.99, 59.999, 59.9999];
+function formatTime(x, tr) {
+    var timePart = mod(x + 0.05, ONEDAY);
+
+    var timeStr = lpad(Math.floor(timePart / ONEHOUR), 2) + ':' +
+        lpad(mod(Math.floor(timePart / ONEMIN), 60), 2);
+
+    if(tr !== 'M') {
+        if(!isNumeric(tr)) tr = 0; // should only be 'S'
+
+        /*
+         * this is a weird one - and shouldn't come up unless people
+         * monkey with tick0 in weird ways, but we need to do something!
+         * IN PARTICULAR we had better not display garbage (see below)
+         * for numbers we always round to the nearest increment of the
+         * precision we're showing, and this seems like the right way to
+         * handle seconds and milliseconds, as they have a decimal point
+         * and people will interpret that to mean rounding like numbers.
+         * but for larger increments we floor the value: it's always
+         * 2013 until the ball drops on the new year. We could argue about
+         * which field it is where we start rounding (should 12:08:59
+         * round to 12:09 if we're stopping at minutes?) but for now I'll
+         * say we round seconds but floor everything else. BUT that means
+         * we need to never round up to 60 seconds, ie 23:59:60
+         */
+        var sec = Math.min(mod(x / ONESEC, 60), MAXSECONDS[tr]);
+
+        var secStr = (100 + sec).toFixed(tr).substr(1);
+        if(tr > 0) {
+            secStr = secStr.replace(/0+$/, '').replace(/[\.]$/, '');
+        }
+
+        timeStr += ':' + secStr;
+    }
+    return timeStr;
+}
+
+/*
+ * formatDate: turn a date into tick or hover label text.
+ *
+ *   x: milliseconds, the value to convert
+ *   fmt: optional, an explicit format string (d3 format, even for world calendars)
+ *   tr: tickround ('y', 'm', 'd', 'M', 'S', or # digits)
+ *      used if no explicit fmt is provided
+ *   formatter: locale-aware d3 date formatter for standard gregorian calendars
+ *      should be the result of exports.getD3DateFormat(gd)
+ *   calendar: optional string, the world calendar system to use
+ *
+ * returns the date/time as a string, potentially with the leading portion
+ * on a separate line (after '\n')
+ * Note that this means if you provide an explicit format which includes '\n'
+ * the axis may choose to strip things after it when they don't change from
+ * one tick to the next (as it does with automatic formatting)
+ */
+exports.formatDate = function(x, fmt, tr, formatter, calendar, extraFormat) {
+    calendar = isWorldCalendar(calendar) && calendar;
+
+    if(!fmt) {
+        if(tr === 'y') fmt = extraFormat.year;
+        else if(tr === 'm') fmt = extraFormat.month;
+        else if(tr === 'd') {
+            fmt = extraFormat.dayMonth + '\n' + extraFormat.year;
+        } else {
+            return formatTime(x, tr) + '\n' + modDateFormat(extraFormat.dayMonthYear, x, formatter, calendar);
+        }
+    }
+
+    return modDateFormat(fmt, x, formatter, calendar);
+};
+
+/*
+ * incrementMonth: make a new milliseconds value from the given one,
+ * having changed the month
+ *
+ * special case for world calendars: multiples of 12 are treated as years,
+ * even for calendar systems that don't have (always or ever) 12 months/year
+ * TODO: perhaps we need a different code for year increments to support this?
+ *
+ * ms (number): the initial millisecond value
+ * dMonth (int): the (signed) number of months to shift
+ * calendar (string): the calendar system to use
+ *
+ * changing month does not (and CANNOT) always preserve day, since
+ * months have different lengths. The worst example of this is:
+ *   d = new Date(1970,0,31); d.setMonth(1) -> Feb 31 turns into Mar 3
+ *
+ * But we want to be able to iterate over the last day of each month,
+ * regardless of what its number is.
+ * So shift 3 days forward, THEN set the new month, then unshift:
+ *   1/31 -> 2/28 (or 29) -> 3/31 -> 4/30 -> ...
+ *
+ * Note that odd behavior still exists if you start from the 26th-28th:
+ *   1/28 -> 2/28 -> 3/31
+ * but at least you can't shift any dates into the wrong month,
+ * and ticks on these days incrementing by month would be very unusual
+ */
+var THREEDAYS = 3 * ONEDAY;
+exports.incrementMonth = function(ms, dMonth, calendar) {
+    calendar = isWorldCalendar(calendar) && calendar;
+
+    // pull time out and operate on pure dates, then add time back at the end
+    // this gives maximum precision - not that we *normally* care if we're
+    // incrementing by month, but better to be safe!
+    var timeMs = mod(ms, ONEDAY);
+    ms = Math.round(ms - timeMs);
+
+    if(calendar) {
+        try {
+            var dateJD = Math.round(ms / ONEDAY) + EPOCHJD;
+            var calInstance = Registry.getComponentMethod('calendars', 'getCal')(calendar);
+            var cDate = calInstance.fromJD(dateJD);
+
+            if(dMonth % 12) calInstance.add(cDate, dMonth, 'm');
+            else calInstance.add(cDate, dMonth / 12, 'y');
+
+            return (cDate.toJD() - EPOCHJD) * ONEDAY + timeMs;
+        } catch(e) {
+            Loggers.error('invalid ms ' + ms + ' in calendar ' + calendar);
+            // then keep going in gregorian even though the result will be 'Invalid'
+        }
+    }
+
+    var y = new Date(ms + THREEDAYS);
+    return y.setUTCMonth(y.getUTCMonth() + dMonth) + timeMs - THREEDAYS;
+};
+
+/*
+ * findExactDates: what fraction of data is exact days, months, or years?
+ *
+ * data: array of millisecond values
+ * calendar (string) the calendar to test against
+ */
+exports.findExactDates = function(data, calendar) {
+    var exactYears = 0;
+    var exactMonths = 0;
+    var exactDays = 0;
+    var blankCount = 0;
+    var d;
+    var di;
+
+    var calInstance = (
+        isWorldCalendar(calendar) &&
+        Registry.getComponentMethod('calendars', 'getCal')(calendar)
+    );
+
+    for(var i = 0; i < data.length; i++) {
+        di = data[i];
+
+        // not date data at all
+        if(!isNumeric(di)) {
+            blankCount ++;
+            continue;
+        }
+
+        // not an exact date
+        if(di % ONEDAY) continue;
+
+        if(calInstance) {
+            try {
+                d = calInstance.fromJD(di / ONEDAY + EPOCHJD);
+                if(d.day() === 1) {
+                    if(d.month() === 1) exactYears++;
+                    else exactMonths++;
+                } else exactDays++;
+            } catch(e) {
+                // invalid date in this calendar - ignore it here.
+            }
+        } else {
+            d = new Date(di);
+            if(d.getUTCDate() === 1) {
+                if(d.getUTCMonth() === 0) exactYears++;
+                else exactMonths++;
+            } else exactDays++;
+        }
+    }
+    exactMonths += exactYears;
+    exactDays += exactMonths;
+
+    var dataCount = data.length - blankCount;
+
+    return {
+        exactYears: exactYears / dataCount,
+        exactMonths: exactMonths / dataCount,
+        exactDays: exactDays / dataCount
+    };
+};
+
+
+/***/ }),
+/* 38 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/**
+ * This will be transferred over to gd and overridden by
+ * config args to Plotly.plot.
+ *
+ * The defaults are the appropriate settings for plotly.js,
+ * so we get the right experience without any config argument.
+ *
+ * N.B. the config options are not coerced using Lib.coerce so keys
+ * like `valType` and `values` are only set for documentation purposes
+ * at the moment.
+ */
+
+var configAttributes = {
+    staticPlot: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+
+    plotlyServerURL: {
+        valType: 'string',
+        dflt: 'https://plot.ly',
+        
+    },
+
+    editable: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+    edits: {
+        annotationPosition: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        annotationTail: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        annotationText: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        axisTitleText: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        colorbarPosition: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        colorbarTitleText: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        legendPosition: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        legendText: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        shapePosition: {
+            valType: 'boolean',
+            dflt: false,
+            
+        },
+        titleText: {
+            valType: 'boolean',
+            dflt: false,
+            
+        }
+    },
+
+    autosizable: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+    responsive: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+    fillFrame: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+    frameMargins: {
+        valType: 'number',
+        dflt: 0,
+        min: 0,
+        max: 0.5,
+        
+    },
+
+    scrollZoom: {
+        valType: 'flaglist',
+        flags: ['cartesian', 'gl3d', 'geo', 'mapbox'],
+        extras: [true, false],
+        dflt: 'gl3d+geo+mapbox',
+        
+    },
+    doubleClick: {
+        valType: 'enumerated',
+        values: [false, 'reset', 'autosize', 'reset+autosize'],
+        dflt: 'reset+autosize',
+        
+    },
+
+    showAxisDragHandles: {
+        valType: 'boolean',
+        dflt: true,
+        
+    },
+    showAxisRangeEntryBoxes: {
+        valType: 'boolean',
+        dflt: true,
+        
+    },
+
+    showTips: {
+        valType: 'boolean',
+        dflt: true,
+        
+    },
+
+    showLink: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+    linkText: {
+        valType: 'string',
+        dflt: 'Edit chart',
+        noBlank: true,
+        
+    },
+    sendData: {
+        valType: 'boolean',
+        dflt: true,
+        
+    },
+    showSources: {
+        valType: 'any',
+        dflt: false,
+        
+    },
+
+    displayModeBar: {
+        valType: 'enumerated',
+        values: ['hover', true, false],
+        dflt: 'hover',
+        
+    },
+    showSendToCloud: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+    modeBarButtonsToRemove: {
+        valType: 'any',
+        dflt: [],
+        
+    },
+    modeBarButtonsToAdd: {
+        valType: 'any',
+        dflt: [],
+        
+    },
+    modeBarButtons: {
+        valType: 'any',
+        dflt: false,
+        
+    },
+    toImageButtonOptions: {
+        valType: 'any',
+        dflt: {},
+        
+    },
+    displaylogo: {
+        valType: 'boolean',
+        dflt: true,
+        
+    },
+    watermark: {
+        valType: 'boolean',
+        dflt: false,
+        
+    },
+
+    plotGlPixelRatio: {
+        valType: 'number',
+        dflt: 2,
+        min: 1,
+        max: 4,
+        
+    },
+
+    setBackground: {
+        valType: 'any',
+        dflt: 'transparent',
+        
+    },
+
+    topojsonURL: {
+        valType: 'string',
+        noBlank: true,
+        dflt: 'https://cdn.plot.ly/',
+        
+    },
+
+    mapboxAccessToken: {
+        valType: 'string',
+        dflt: null,
+        
+    },
+
+    logging: {
+        valType: 'boolean',
+        dflt: 1,
+        
+    },
+
+    queueLength: {
+        valType: 'integer',
+        min: 0,
+        dflt: 0,
+        
+    },
+
+    globalTransforms: {
+        valType: 'any',
+        dflt: [],
+        
+    },
+
+    locale: {
+        valType: 'string',
+        dflt: 'en-US',
+        
+    },
+
+    locales: {
+        valType: 'any',
+        dflt: {},
+        
+    }
+};
+
+var dfltConfig = {};
+
+function crawl(src, target) {
+    for(var k in src) {
+        var obj = src[k];
+        if(obj.valType) {
+            target[k] = obj.dflt;
+        } else {
+            if(!target[k]) {
+                target[k] = {};
+            }
+            crawl(obj, target[k]);
+        }
+    }
+}
+
+crawl(configAttributes, dfltConfig);
+
+module.exports = {
+    configAttributes: configAttributes,
+    dfltConfig: dfltConfig
+};
+
+
+/***/ }),
+/* 39 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var fontAttrs = __webpack_require__(9);
+var animationAttrs = __webpack_require__(40);
+var colorAttrs = __webpack_require__(41);
+var padAttrs = __webpack_require__(42);
+var extendFlat = __webpack_require__(4).extendFlat;
+
+var globalFont = fontAttrs({
+    editType: 'calc',
+    
+});
+globalFont.family.dflt = '"Open Sans", verdana, arial, sans-serif';
+globalFont.size.dflt = 12;
+globalFont.color.dflt = colorAttrs.defaultLine;
+
+module.exports = {
+    font: globalFont,
+    title: {
+        text: {
+            valType: 'string',
+            
+            editType: 'layoutstyle',
+            
+        },
+        font: fontAttrs({
+            editType: 'layoutstyle',
+            
+        }),
+        xref: {
+            valType: 'enumerated',
+            dflt: 'container',
+            values: ['container', 'paper'],
+            
+            editType: 'layoutstyle',
+            
+        },
+        yref: {
+            valType: 'enumerated',
+            dflt: 'container',
+            values: ['container', 'paper'],
+            
+            editType: 'layoutstyle',
+            
+        },
+        x: {
+            valType: 'number',
+            min: 0,
+            max: 1,
+            dflt: 0.5,
+            
+            editType: 'layoutstyle',
+            
+        },
+        y: {
+            valType: 'number',
+            min: 0,
+            max: 1,
+            dflt: 'auto',
+            
+            editType: 'layoutstyle',
+            
+        },
+        xanchor: {
+            valType: 'enumerated',
+            dflt: 'auto',
+            values: ['auto', 'left', 'center', 'right'],
+            
+            editType: 'layoutstyle',
+            
+        },
+        yanchor: {
+            valType: 'enumerated',
+            dflt: 'auto',
+            values: ['auto', 'top', 'middle', 'bottom'],
+            
+            editType: 'layoutstyle',
+            
+        },
+        pad: extendFlat(padAttrs({editType: 'layoutstyle'}), {
+            
+        }),
+        editType: 'layoutstyle'
+    },
+    autosize: {
+        valType: 'boolean',
+        
+        dflt: false,
+        // autosize, width, and height get special editType treatment in _relayout
+        // so we can handle noop resizes more efficiently
+        editType: 'none',
+        
+    },
+    width: {
+        valType: 'number',
+        
+        min: 10,
+        dflt: 700,
+        editType: 'plot',
+        
+    },
+    height: {
+        valType: 'number',
+        
+        min: 10,
+        dflt: 450,
+        editType: 'plot',
+        
+    },
+    margin: {
+        l: {
+            valType: 'number',
+            
+            min: 0,
+            dflt: 80,
+            editType: 'plot',
+            
+        },
+        r: {
+            valType: 'number',
+            
+            min: 0,
+            dflt: 80,
+            editType: 'plot',
+            
+        },
+        t: {
+            valType: 'number',
+            
+            min: 0,
+            dflt: 100,
+            editType: 'plot',
+            
+        },
+        b: {
+            valType: 'number',
+            
+            min: 0,
+            dflt: 80,
+            editType: 'plot',
+            
+        },
+        pad: {
+            valType: 'number',
+            
+            min: 0,
+            dflt: 0,
+            editType: 'plot',
+            
+        },
+        autoexpand: {
+            valType: 'boolean',
+            
+            dflt: true,
+            editType: 'plot'
+        },
+        editType: 'plot'
+    },
+    paper_bgcolor: {
+        valType: 'color',
+        
+        dflt: colorAttrs.background,
+        editType: 'plot',
+        
+    },
+    plot_bgcolor: {
+        // defined here, but set in cartesian.supplyLayoutDefaults
+        // because it needs to know if there are (2D) axes or not
+        valType: 'color',
+        
+        dflt: colorAttrs.background,
+        editType: 'layoutstyle',
+        
+    },
+    separators: {
+        valType: 'string',
+        
+        editType: 'plot',
+        
+    },
+    hidesources: {
+        valType: 'boolean',
+        
+        dflt: false,
+        editType: 'plot',
+        
+    },
+    showlegend: {
+        // handled in legend.supplyLayoutDefaults
+        // but included here because it's not in the legend object
+        valType: 'boolean',
+        
+        editType: 'legend',
+        
+    },
+    colorway: {
+        valType: 'colorlist',
+        dflt: colorAttrs.defaults,
+        
+        editType: 'calc',
+        
+    },
+    datarevision: {
+        valType: 'any',
+        
+        editType: 'calc',
+        
+    },
+    uirevision: {
+        valType: 'any',
+        
+        editType: 'none',
+        
+    },
+    editrevision: {
+        valType: 'any',
+        
+        editType: 'none',
+        
+    },
+    selectionrevision: {
+        valType: 'any',
+        
+        editType: 'none',
+        
+    },
+    template: {
+        valType: 'any',
+        
+        editType: 'calc',
+        
+    },
+    modebar: {
+        orientation: {
+            valType: 'enumerated',
+            values: ['v', 'h'],
+            dflt: 'h',
+            
+            editType: 'modebar',
+            
+        },
+        bgcolor: {
+            valType: 'color',
+            
+            editType: 'modebar',
+            
+        },
+        color: {
+            valType: 'color',
+            
+            editType: 'modebar',
+            
+        },
+        activecolor: {
+            valType: 'color',
+            
+            editType: 'modebar',
+            
+        },
+        uirevision: {
+            valType: 'any',
+            
+            editType: 'none',
+            
+        },
+        editType: 'modebar'
+    },
+
+    meta: {
+        valType: 'any',
+        arrayOk: true,
+        
+        editType: 'plot',
+        
+    },
+
+    transition: extendFlat({}, animationAttrs.transition, {
+        
+        editType: 'none'
+    }),
+
+    _deprecated: {
+        title: {
+            valType: 'string',
+            
+            editType: 'layoutstyle',
+            
+        },
+        titlefont: fontAttrs({
+            editType: 'layoutstyle',
+            
+        })
+    }
+};
+
+
+/***/ }),
+/* 40 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+module.exports = {
+    mode: {
+        valType: 'enumerated',
+        dflt: 'afterall',
+        
+        values: ['immediate', 'next', 'afterall'],
+        
+    },
+    direction: {
+        valType: 'enumerated',
+        
+        values: ['forward', 'reverse'],
+        dflt: 'forward',
+        
+    },
+    fromcurrent: {
+        valType: 'boolean',
+        dflt: false,
+        
+        
+    },
+    frame: {
+        duration: {
+            valType: 'number',
+            
+            min: 0,
+            dflt: 500,
+            
+        },
+        redraw: {
+            valType: 'boolean',
+            
+            dflt: true,
+            
+        },
+    },
+    transition: {
+        duration: {
+            valType: 'number',
+            
+            min: 0,
+            dflt: 500,
+            editType: 'none',
+            
+        },
+        easing: {
+            valType: 'enumerated',
+            dflt: 'cubic-in-out',
+            values: [
+                'linear',
+                'quad',
+                'cubic',
+                'sin',
+                'exp',
+                'circle',
+                'elastic',
+                'back',
+                'bounce',
+                'linear-in',
+                'quad-in',
+                'cubic-in',
+                'sin-in',
+                'exp-in',
+                'circle-in',
+                'elastic-in',
+                'back-in',
+                'bounce-in',
+                'linear-out',
+                'quad-out',
+                'cubic-out',
+                'sin-out',
+                'exp-out',
+                'circle-out',
+                'elastic-out',
+                'back-out',
+                'bounce-out',
+                'linear-in-out',
+                'quad-in-out',
+                'cubic-in-out',
+                'sin-in-out',
+                'exp-in-out',
+                'circle-in-out',
+                'elastic-in-out',
+                'back-in-out',
+                'bounce-in-out'
+            ],
+            
+            editType: 'none',
+            
+        },
+        ordering: {
+            valType: 'enumerated',
+            values: ['layout first', 'traces first'],
+            dflt: 'layout first',
+            
+            editType: 'none',
+            
+        }
+    }
+};
+
+
+/***/ }),
+/* 41 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+// IMPORTANT - default colors should be in hex for compatibility
+exports.defaults = [
+    '#1f77b4',  // muted blue
+    '#ff7f0e',  // safety orange
+    '#2ca02c',  // cooked asparagus green
+    '#d62728',  // brick red
+    '#9467bd',  // muted purple
+    '#8c564b',  // chestnut brown
+    '#e377c2',  // raspberry yogurt pink
+    '#7f7f7f',  // middle gray
+    '#bcbd22',  // curry yellow-green
+    '#17becf'   // blue-teal
+];
+
+exports.defaultLine = '#444';
+
+exports.lightLine = '#eee';
+
+exports.background = '#fff';
+
+exports.borderLine = '#BEC8D9';
+
+// with axis.color and Color.interp we aren't using lightLine
+// itself anymore, instead interpolating between axis.color
+// and the background color using tinycolor.mix. lightFraction
+// gives back exactly lightLine if the other colors are defaults.
+exports.lightFraction = 100 * (0xe - 0x4) / (0xf - 0x4);
+
+
+/***/ }),
+/* 42 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/**
+ * Creates a set of padding attributes.
+ *
+ * @param {object} opts
+ *   @param {string} editType:
+ *     the editType for all pieces of this padding definition
+ *
+ * @return {object} attributes object containing {t, r, b, l} as specified
+ */
+module.exports = function(opts) {
+    var editType = opts.editType;
+    return {
+        t: {
+            valType: 'number',
+            dflt: 0,
+            
+            editType: editType,
+            
+        },
+        r: {
+            valType: 'number',
+            dflt: 0,
+            
+            editType: editType,
+            
+        },
+        b: {
+            valType: 'number',
+            dflt: 0,
+            
+            editType: editType,
+            
+        },
+        l: {
+            valType: 'number',
+            dflt: 0,
+            
+            editType: editType,
+            
+        },
+        editType: editType
+    };
+};
+
+
+/***/ }),
+/* 43 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var isNumeric = __webpack_require__(0);
+var loggers = __webpack_require__(5);
+var identity = __webpack_require__(17);
+
+// don't trust floating point equality - fraction of bin size to call
+// "on the line" and ensure that they go the right way specified by
+// linelow
+var roundingError = 1e-9;
+
+
+/**
+ * findBin - find the bin for val - note that it can return outside the
+ * bin range any pos. or neg. integer for linear bins, or -1 or
+ * bins.length-1 for explicit.
+ * bins is either an object {start,size,end} or an array length #bins+1
+ * bins can be either increasing or decreasing but must be monotonic
+ * for linear bins, we can just calculate. For listed bins, run a binary
+ * search linelow (truthy) says the bin boundary should be attributed to
+ * the lower bin rather than the default upper bin
+ */
+exports.findBin = function(val, bins, linelow) {
+    if(isNumeric(bins.start)) {
+        return linelow ?
+            Math.ceil((val - bins.start) / bins.size - roundingError) - 1 :
+            Math.floor((val - bins.start) / bins.size + roundingError);
+    } else {
+        var n1 = 0;
+        var n2 = bins.length;
+        var c = 0;
+        var binSize = (n2 > 1) ? (bins[n2 - 1] - bins[0]) / (n2 - 1) : 1;
+        var n, test;
+        if(binSize >= 0) {
+            test = linelow ? lessThan : lessOrEqual;
+        } else {
+            test = linelow ? greaterOrEqual : greaterThan;
+        }
+        val += binSize * roundingError * (linelow ? -1 : 1) * (binSize >= 0 ? 1 : -1);
+        // c is just to avoid infinite loops if there's an error
+        while(n1 < n2 && c++ < 100) {
+            n = Math.floor((n1 + n2) / 2);
+            if(test(bins[n], val)) n1 = n + 1;
+            else n2 = n;
+        }
+        if(c > 90) loggers.log('Long binary search...');
+        return n1 - 1;
+    }
+};
+
+function lessThan(a, b) { return a < b; }
+function lessOrEqual(a, b) { return a <= b; }
+function greaterThan(a, b) { return a > b; }
+function greaterOrEqual(a, b) { return a >= b; }
+
+exports.sorterAsc = function(a, b) { return a - b; };
+exports.sorterDes = function(a, b) { return b - a; };
+
+/**
+ * find distinct values in an array, lumping together ones that appear to
+ * just be off by a rounding error
+ * return the distinct values and the minimum difference between any two
+ */
+exports.distinctVals = function(valsIn) {
+    var vals = valsIn.slice();  // otherwise we sort the original array...
+    vals.sort(exports.sorterAsc);
+
+    var l = vals.length - 1;
+    var minDiff = (vals[l] - vals[0]) || 1;
+    var errDiff = minDiff / (l || 1) / 10000;
+    var v2 = [vals[0]];
+
+    for(var i = 0; i < l; i++) {
+        // make sure values aren't just off by a rounding error
+        if(vals[i + 1] > vals[i] + errDiff) {
+            minDiff = Math.min(minDiff, vals[i + 1] - vals[i]);
+            v2.push(vals[i + 1]);
+        }
+    }
+
+    return {vals: v2, minDiff: minDiff};
+};
+
+/**
+ * return the smallest element from (sorted) array arrayIn that's bigger than val,
+ * or (reverse) the largest element smaller than val
+ * used to find the best tick given the minimum (non-rounded) tick
+ * particularly useful for date/time where things are not powers of 10
+ * binary search is probably overkill here...
+ */
+exports.roundUp = function(val, arrayIn, reverse) {
+    var low = 0;
+    var high = arrayIn.length - 1;
+    var mid;
+    var c = 0;
+    var dlow = reverse ? 0 : 1;
+    var dhigh = reverse ? 1 : 0;
+    var rounded = reverse ? Math.ceil : Math.floor;
+    // c is just to avoid infinite loops if there's an error
+    while(low < high && c++ < 100) {
+        mid = rounded((low + high) / 2);
+        if(arrayIn[mid] <= val) low = mid + dlow;
+        else high = mid - dhigh;
+    }
+    return arrayIn[low];
+};
+
+/**
+ * Tweak to Array.sort(sortFn) that improves performance for pre-sorted arrays
+ *
+ * Note that newer browsers (such as Chrome v70+) are starting to pick up
+ * on pre-sorted arrays which may render the following optimization unnecessary
+ * in the future.
+ *
+ * Motivation: sometimes we need to sort arrays but the input is likely to
+ * already be sorted. Browsers don't seem to pick up on pre-sorted arrays,
+ * and in fact Chrome is actually *slower* sorting pre-sorted arrays than purely
+ * random arrays. FF is at least faster if the array is pre-sorted, but still
+ * not as fast as it could be.
+ * Here's how this plays out sorting a length-1e6 array:
+ *
+ * Calls to Sort FN  |  Chrome bare  |  FF bare  |  Chrome tweak  |  FF tweak
+ *                   |  v68.0 Mac    |  v61.0 Mac|                |
+ * ------------------+---------------+-----------+----------------+------------
+ * ordered           |  30.4e6       |  10.1e6   |  1e6           |  1e6
+ * reversed          |  29.4e6       |  9.9e6    |  1e6 + reverse |  1e6 + reverse
+ * random            |  ~21e6        |  ~18.7e6  |  ~21e6         |  ~18.7e6
+ *
+ * So this is a substantial win for pre-sorted (ordered or exactly reversed)
+ * arrays. Including this wrapper on an unsorted array adds a penalty that will
+ * in general be only a few calls to the sort function. The only case this
+ * penalty will be significant is if the array is mostly sorted but there are
+ * a few unsorted items near the end, but the penalty is still at most N calls
+ * out of (for N=1e6) ~20N total calls
+ *
+ * @param {Array} array: the array, to be sorted in place
+ * @param {function} sortFn: As in Array.sort, function(a, b) that puts
+ *     item a before item b if the return is negative, a after b if positive,
+ *     and no change if zero.
+ * @return {Array}: the original array, sorted in place.
+ */
+exports.sort = function(array, sortFn) {
+    var notOrdered = 0;
+    var notReversed = 0;
+    for(var i = 1; i < array.length; i++) {
+        var pairOrder = sortFn(array[i], array[i - 1]);
+        if(pairOrder < 0) notOrdered = 1;
+        else if(pairOrder > 0) notReversed = 1;
+        if(notOrdered && notReversed) return array.sort(sortFn);
+    }
+    return notReversed ? array : array.reverse();
+};
+
+/**
+ * find index in array 'arr' that minimizes 'fn'
+ *
+ * @param {array} arr : array where to search
+ * @param {fn (optional)} fn : function to minimize,
+ *   if not given, fn is the identity function
+ * @return {integer}
+ */
+exports.findIndexOfMin = function(arr, fn) {
+    fn = fn || identity;
+
+    var min = Infinity;
+    var ind;
+
+    for(var i = 0; i < arr.length; i++) {
+        var v = fn(arr[i]);
+        if(v < min) {
+            min = v;
+            ind = i;
+        }
+    }
+    return ind;
+};
+
+
+/***/ }),
+/* 44 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var isNumeric = __webpack_require__(0);
+var isArrayOrTypedArray = __webpack_require__(1).isArrayOrTypedArray;
+
+/**
+ * aggNums() returns the result of an aggregate function applied to an array of
+ * values, where non-numerical values have been tossed out.
+ *
+ * @param {function} f - aggregation function (e.g., Math.min)
+ * @param {Number} v - initial value (continuing from previous calls)
+ *      if there's no continuing value, use null for selector-type
+ *      functions (max,min), or 0 for summations
+ * @param {Array} a - array to aggregate (may be nested, we will recurse,
+ *                    but all elements must have the same dimension)
+ * @param {Number} len - maximum length of a to aggregate
+ * @return {Number} - result of f applied to a starting from v
+ */
+exports.aggNums = function(f, v, a, len) {
+    var i,
+        b;
+    if(!len || len > a.length) len = a.length;
+    if(!isNumeric(v)) v = false;
+    if(isArrayOrTypedArray(a[0])) {
+        b = new Array(len);
+        for(i = 0; i < len; i++) b[i] = exports.aggNums(f, v, a[i]);
+        a = b;
+    }
+
+    for(i = 0; i < len; i++) {
+        if(!isNumeric(v)) v = a[i];
+        else if(isNumeric(a[i])) v = f(+v, +a[i]);
+    }
+    return v;
+};
+
+/**
+ * mean & std dev functions using aggNums, so it handles non-numerics nicely
+ * even need to use aggNums instead of .length, to toss out non-numerics
+ */
+exports.len = function(data) {
+    return exports.aggNums(function(a) { return a + 1; }, 0, data);
+};
+
+exports.mean = function(data, len) {
+    if(!len) len = exports.len(data);
+    return exports.aggNums(function(a, b) { return a + b; }, 0, data) / len;
+};
+
+exports.midRange = function(numArr) {
+    if(numArr === undefined || numArr.length === 0) return undefined;
+    return (exports.aggNums(Math.max, null, numArr) + exports.aggNums(Math.min, null, numArr)) / 2;
+};
+
+exports.variance = function(data, len, mean) {
+    if(!len) len = exports.len(data);
+    if(!isNumeric(mean)) mean = exports.mean(data, len);
+
+    return exports.aggNums(function(a, b) {
+        return a + Math.pow(b - mean, 2);
+    }, 0, data) / len;
+};
+
+exports.stdev = function(data, len, mean) {
+    return Math.sqrt(exports.variance(data, len, mean));
+};
+
+/**
+ * median of a finite set of numbers
+ * reference page: https://en.wikipedia.org/wiki/Median#Finite_set_of_numbers
+**/
+exports.median = function(data) {
+    var b = data.slice().sort();
+    return exports.interp(b, 0.5);
+};
+
+/**
+ * interp() computes a percentile (quantile) for a given distribution.
+ * We interpolate the distribution (to compute quantiles, we follow method #10 here:
+ * http://www.amstat.org/publications/jse/v14n3/langford.html).
+ * Typically the index or rank (n * arr.length) may be non-integer.
+ * For reference: ends are clipped to the extreme values in the array;
+ * For box plots: index you get is half a point too high (see
+ * http://en.wikipedia.org/wiki/Percentile#Nearest_rank) but note that this definition
+ * indexes from 1 rather than 0, so we subtract 1/2 (instead of add).
+ *
+ * @param {Array} arr - This array contains the values that make up the distribution.
+ * @param {Number} n - Between 0 and 1, n = p/100 is such that we compute the p^th percentile.
+ * For example, the 50th percentile (or median) corresponds to n = 0.5
+ * @return {Number} - percentile
+ */
+exports.interp = function(arr, n) {
+    if(!isNumeric(n)) throw 'n should be a finite number';
+    n = n * arr.length - 0.5;
+    if(n < 0) return arr[0];
+    if(n > arr.length - 1) return arr[arr.length - 1];
+    var frac = n % 1;
+    return frac * arr[Math.ceil(n)] + (1 - frac) * arr[Math.floor(n)];
+};
+
+
+/***/ }),
+/* 45 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+
+exports.init2dArray = function(rowLength, colLength) {
+    var array = new Array(rowLength);
+    for(var i = 0; i < rowLength; i++) array[i] = new Array(colLength);
+    return array;
+};
+
+/**
+ * transpose a (possibly ragged) 2d array z. inspired by
+ * http://stackoverflow.com/questions/17428587/
+ * transposing-a-2d-array-in-javascript
+ */
+exports.transposeRagged = function(z) {
+    var maxlen = 0;
+    var zlen = z.length;
+    var i, j;
+    // Maximum row length:
+    for(i = 0; i < zlen; i++) maxlen = Math.max(maxlen, z[i].length);
+
+    var t = new Array(maxlen);
+    for(i = 0; i < maxlen; i++) {
+        t[i] = new Array(zlen);
+        for(j = 0; j < zlen; j++) t[i][j] = z[j][i];
+    }
+
+    return t;
+};
+
+// our own dot function so that we don't need to include numeric
+exports.dot = function(x, y) {
+    if(!(x.length && y.length) || x.length !== y.length) return null;
+
+    var len = x.length;
+    var out;
+    var i;
+
+    if(x[0].length) {
+        // mat-vec or mat-mat
+        out = new Array(len);
+        for(i = 0; i < len; i++) out[i] = exports.dot(x[i], y);
+    } else if(y[0].length) {
+        // vec-mat
+        var yTranspose = exports.transposeRagged(y);
+        out = new Array(yTranspose.length);
+        for(i = 0; i < yTranspose.length; i++) out[i] = exports.dot(x, yTranspose[i]);
+    } else {
+        // vec-vec
+        out = 0;
+        for(i = 0; i < len; i++) out += x[i] * y[i];
+    }
+
+    return out;
+};
+
+// translate by (x,y)
+exports.translationMatrix = function(x, y) {
+    return [[1, 0, x], [0, 1, y], [0, 0, 1]];
+};
+
+// rotate by alpha around (0,0)
+exports.rotationMatrix = function(alpha) {
+    var a = alpha * Math.PI / 180;
+    return [[Math.cos(a), -Math.sin(a), 0],
+            [Math.sin(a), Math.cos(a), 0],
+            [0, 0, 1]];
+};
+
+// rotate by alpha around (x,y)
+exports.rotationXYMatrix = function(a, x, y) {
+    return exports.dot(
+        exports.dot(exports.translationMatrix(x, y),
+                    exports.rotationMatrix(a)),
+        exports.translationMatrix(-x, -y));
+};
+
+// applies a 2D transformation matrix to either x and y params or an [x,y] array
+exports.apply2DTransform = function(transform) {
+    return function() {
+        var args = arguments;
+        if(args.length === 3) {
+            args = args[0];
+        }// from map
+        var xy = arguments.length === 1 ? args[0] : [args[0], args[1]];
+        return exports.dot(transform, [xy[0], xy[1], 1]).slice(0, 2);
+    };
+};
+
+// applies a 2D transformation matrix to an [x1,y1,x2,y2] array (to transform a segment)
+exports.apply2DTransform2 = function(transform) {
+    var at = exports.apply2DTransform(transform);
+    return function(xys) {
+        return at(xys.slice(0, 2)).concat(at(xys.slice(2, 4)));
+    };
+};
+
+
+/***/ }),
+/* 46 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var modModule = __webpack_require__(2);
+var mod = modModule.mod;
+var modHalf = modModule.modHalf;
+
+var PI = Math.PI;
+var twoPI = 2 * PI;
+
+function deg2rad(deg) { return deg / 180 * PI; }
+
+function rad2deg(rad) { return rad / PI * 180; }
+
+/**
+ * is sector a full circle?
+ * ... this comes up a lot in SVG path-drawing routines
+ *
+ * N.B. we consider all sectors that span more that 2pi 'full' circles
+ *
+ * @param {2-item array} aBnds : angular bounds in *radians*
+ * @return {boolean}
+ */
+function isFullCircle(aBnds) {
+    return Math.abs(aBnds[1] - aBnds[0]) > twoPI - 1e-14;
+}
+
+/**
+ * angular delta between angle 'a' and 'b'
+ * solution taken from: https://stackoverflow.com/a/2007279
+ *
+ * @param {number} a : first angle in *radians*
+ * @param {number} b : second angle in *radians*
+ * @return {number} angular delta in *radians*
+ */
+function angleDelta(a, b) {
+    return modHalf(b - a, twoPI);
+}
+
+/**
+ * angular distance between angle 'a' and 'b'
+ *
+ * @param {number} a : first angle in *radians*
+ * @param {number} b : second angle in *radians*
+ * @return {number} angular distance in *radians*
+ */
+function angleDist(a, b) {
+    return Math.abs(angleDelta(a, b));
+}
+
+/**
+ * is angle inside sector?
+ *
+ * @param {number} a : angle to test in *radians*
+ * @param {2-item array} aBnds : sector's angular bounds in *radians*
+ * @param {boolean}
+ */
+function isAngleInsideSector(a, aBnds) {
+    if(isFullCircle(aBnds)) return true;
+
+    var s0, s1;
+
+    if(aBnds[0] < aBnds[1]) {
+        s0 = aBnds[0];
+        s1 = aBnds[1];
+    } else {
+        s0 = aBnds[1];
+        s1 = aBnds[0];
+    }
+
+    s0 = mod(s0, twoPI);
+    s1 = mod(s1, twoPI);
+    if(s0 > s1) s1 += twoPI;
+
+    var a0 = mod(a, twoPI);
+    var a1 = a0 + twoPI;
+
+    return (a0 >= s0 && a0 <= s1) || (a1 >= s0 && a1 <= s1);
+}
+
+/**
+ * is pt (r,a) inside sector?
+ *
+ * @param {number} r : pt's radial coordinate
+ * @param {number} a : pt's angular coordinate in *radians*
+ * @param {2-item array} rBnds : sector's radial bounds
+ * @param {2-item array} aBnds : sector's angular bounds in *radians*
+ * @return {boolean}
+ */
+function isPtInsideSector(r, a, rBnds, aBnds) {
+    if(!isAngleInsideSector(a, aBnds)) return false;
+
+    var r0, r1;
+
+    if(rBnds[0] < rBnds[1]) {
+        r0 = rBnds[0];
+        r1 = rBnds[1];
+    } else {
+        r0 = rBnds[1];
+        r1 = rBnds[0];
+    }
+
+    return r >= r0 && r <= r1;
+}
+
+// common to pathArc, pathSector and pathAnnulus
+function _path(r0, r1, a0, a1, cx, cy, isClosed) {
+    cx = cx || 0;
+    cy = cy || 0;
+
+    var isCircle = isFullCircle([a0, a1]);
+    var aStart, aMid, aEnd;
+    var rStart, rEnd;
+
+    if(isCircle) {
+        aStart = 0;
+        aMid = PI;
+        aEnd = twoPI;
+    } else {
+        if(a0 < a1) {
+            aStart = a0;
+            aEnd = a1;
+        } else {
+            aStart = a1;
+            aEnd = a0;
+        }
+    }
+
+    if(r0 < r1) {
+        rStart = r0;
+        rEnd = r1;
+    } else {
+        rStart = r1;
+        rEnd = r0;
+    }
+
+    // N.B. svg coordinates here, where y increases downward
+    function pt(r, a) {
+        return [r * Math.cos(a) + cx, cy - r * Math.sin(a)];
+    }
+
+    var largeArc = Math.abs(aEnd - aStart) <= PI ? 0 : 1;
+    function arc(r, a, cw) {
+        return 'A' + [r, r] + ' ' + [0, largeArc, cw] + ' ' + pt(r, a);
+    }
+
+    var p;
+
+    if(isCircle) {
+        if(rStart === null) {
+            p = 'M' + pt(rEnd, aStart) +
+                arc(rEnd, aMid, 0) +
+                arc(rEnd, aEnd, 0) + 'Z';
+        } else {
+            p = 'M' + pt(rStart, aStart) +
+                arc(rStart, aMid, 0) +
+                arc(rStart, aEnd, 0) + 'Z' +
+                'M' + pt(rEnd, aStart) +
+                arc(rEnd, aMid, 1) +
+                arc(rEnd, aEnd, 1) + 'Z';
+        }
+    } else {
+        if(rStart === null) {
+            p = 'M' + pt(rEnd, aStart) + arc(rEnd, aEnd, 0);
+            if(isClosed) p += 'L0,0Z';
+        } else {
+            p = 'M' + pt(rStart, aStart) +
+                'L' + pt(rEnd, aStart) +
+                arc(rEnd, aEnd, 0) +
+                'L' + pt(rStart, aEnd) +
+                arc(rStart, aStart, 1) + 'Z';
+        }
+    }
+
+    return p;
+}
+
+/**
+ * path an arc
+ *
+ * @param {number} r : radius
+ * @param {number} a0 : first angular coordinate in *radians*
+ * @param {number} a1 : second angular coordinate in *radians*
+ * @param {number (optional)} cx : x coordinate of center
+ * @param {number (optional)} cy : y coordinate of center
+ * @return {string} svg path
+ */
+function pathArc(r, a0, a1, cx, cy) {
+    return _path(null, r, a0, a1, cx, cy, 0);
+}
+
+/**
+ * path a sector
+ *
+ * @param {number} r : radius
+ * @param {number} a0 : first angular coordinate in *radians*
+ * @param {number} a1 : second angular coordinate in *radians*
+ * @param {number (optional)} cx : x coordinate of center
+ * @param {number (optional)} cy : y coordinate of center
+ * @return {string} svg path
+ */
+function pathSector(r, a0, a1, cx, cy) {
+    return _path(null, r, a0, a1, cx, cy, 1);
+}
+
+/**
+ * path an annulus
+ *
+ * @param {number} r0 : first radial coordinate
+ * @param {number} r1 : second radial coordinate
+ * @param {number} a0 : first angular coordinate in *radians*
+ * @param {number} a1 : second angular coordinate in *radians*
+ * @param {number (optional)} cx : x coordinate of center
+ * @param {number (optional)} cy : y coordinate of center
+ * @return {string} svg path
+ */
+function pathAnnulus(r0, r1, a0, a1, cx, cy) {
+    return _path(r0, r1, a0, a1, cx, cy, 1);
+}
+
+module.exports = {
+    deg2rad: deg2rad,
+    rad2deg: rad2deg,
+    angleDelta: angleDelta,
+    angleDist: angleDist,
+    isFullCircle: isFullCircle,
+    isAngleInsideSector: isAngleInsideSector,
+    isPtInsideSector: isPtInsideSector,
+    pathArc: pathArc,
+    pathSector: pathSector,
+    pathAnnulus: pathAnnulus
+};
+
+
+/***/ }),
+/* 47 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+
+/**
+ * Determine the position anchor property of x/y xanchor/yanchor components.
+ *
+ * - values < 1/3 align the low side at that fraction,
+ * - values [1/3, 2/3] align the center at that fraction,
+ * - values > 2/3 align the right at that fraction.
+ */
+
+
+exports.isLeftAnchor = function isLeftAnchor(opts) {
+    return (
+      opts.xanchor === 'left' ||
+      (opts.xanchor === 'auto' && opts.x <= 1 / 3)
+    );
+};
+
+exports.isCenterAnchor = function isCenterAnchor(opts) {
+    return (
+        opts.xanchor === 'center' ||
+        (opts.xanchor === 'auto' && opts.x > 1 / 3 && opts.x < 2 / 3)
+    );
+};
+
+exports.isRightAnchor = function isRightAnchor(opts) {
+    return (
+      opts.xanchor === 'right' ||
+      (opts.xanchor === 'auto' && opts.x >= 2 / 3)
+    );
+};
+
+exports.isTopAnchor = function isTopAnchor(opts) {
+    return (
+        opts.yanchor === 'top' ||
+        (opts.yanchor === 'auto' && opts.y >= 2 / 3)
+    );
+};
+
+exports.isMiddleAnchor = function isMiddleAnchor(opts) {
+    return (
+        opts.yanchor === 'middle' ||
+        (opts.yanchor === 'auto' && opts.y > 1 / 3 && opts.y < 2 / 3)
+    );
+};
+
+exports.isBottomAnchor = function isBottomAnchor(opts) {
+    return (
+      opts.yanchor === 'bottom' ||
+      (opts.yanchor === 'auto' && opts.y <= 1 / 3)
+    );
+};
+
+
+/***/ }),
+/* 48 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var mod = __webpack_require__(2).mod;
+
+/*
+ * look for intersection of two line segments
+ *   (1->2 and 3->4) - returns array [x,y] if they do, null if not
+ */
+exports.segmentsIntersect = segmentsIntersect;
+function segmentsIntersect(x1, y1, x2, y2, x3, y3, x4, y4) {
+    var a = x2 - x1;
+    var b = x3 - x1;
+    var c = x4 - x3;
+    var d = y2 - y1;
+    var e = y3 - y1;
+    var f = y4 - y3;
+    var det = a * f - c * d;
+    // parallel lines? intersection is undefined
+    // ignore the case where they are colinear
+    if(det === 0) return null;
+    var t = (b * f - c * e) / det;
+    var u = (b * d - a * e) / det;
+    // segments do not intersect?
+    if(u < 0 || u > 1 || t < 0 || t > 1) return null;
+
+    return {x: x1 + a * t, y: y1 + d * t};
+}
+
+/*
+ * find the minimum distance between two line segments (1->2 and 3->4)
+ */
+exports.segmentDistance = function segmentDistance(x1, y1, x2, y2, x3, y3, x4, y4) {
+    if(segmentsIntersect(x1, y1, x2, y2, x3, y3, x4, y4)) return 0;
+
+    // the two segments and their lengths squared
+    var x12 = x2 - x1;
+    var y12 = y2 - y1;
+    var x34 = x4 - x3;
+    var y34 = y4 - y3;
+    var ll12 = x12 * x12 + y12 * y12;
+    var ll34 = x34 * x34 + y34 * y34;
+
+    // calculate distance squared, then take the sqrt at the very end
+    var dist2 = Math.min(
+        perpDistance2(x12, y12, ll12, x3 - x1, y3 - y1),
+        perpDistance2(x12, y12, ll12, x4 - x1, y4 - y1),
+        perpDistance2(x34, y34, ll34, x1 - x3, y1 - y3),
+        perpDistance2(x34, y34, ll34, x2 - x3, y2 - y3)
+    );
+
+    return Math.sqrt(dist2);
+};
+
+/*
+ * distance squared from segment ab to point c
+ * [xab, yab] is the vector b-a
+ * [xac, yac] is the vector c-a
+ * llab is the length squared of (b-a), just to simplify calculation
+ */
+function perpDistance2(xab, yab, llab, xac, yac) {
+    var fcAB = (xac * xab + yac * yab);
+    if(fcAB < 0) {
+        // point c is closer to point a
+        return xac * xac + yac * yac;
+    } else if(fcAB > llab) {
+        // point c is closer to point b
+        var xbc = xac - xab;
+        var ybc = yac - yab;
+        return xbc * xbc + ybc * ybc;
+    } else {
+        // perpendicular distance is the shortest
+        var crossProduct = xac * yab - yac * xab;
+        return crossProduct * crossProduct / llab;
+    }
+}
+
+// a very short-term cache for getTextLocation, just because
+// we're often looping over the same locations multiple times
+// invalidated as soon as we look at a different path
+var locationCache, workingPath, workingTextWidth;
+
+// turn a path and position along it into x, y, and angle for the given text
+exports.getTextLocation = function getTextLocation(path, totalPathLen, positionOnPath, textWidth) {
+    if(path !== workingPath || textWidth !== workingTextWidth) {
+        locationCache = {};
+        workingPath = path;
+        workingTextWidth = textWidth;
+    }
+    if(locationCache[positionOnPath]) {
+        return locationCache[positionOnPath];
+    }
+
+    // for the angle, use points on the path separated by the text width
+    // even though due to curvature, the text will cover a bit more than that
+    var p0 = path.getPointAtLength(mod(positionOnPath - textWidth / 2, totalPathLen));
+    var p1 = path.getPointAtLength(mod(positionOnPath + textWidth / 2, totalPathLen));
+    // note: atan handles 1/0 nicely
+    var theta = Math.atan((p1.y - p0.y) / (p1.x - p0.x));
+    // center the text at 2/3 of the center position plus 1/3 the p0/p1 midpoint
+    // that's the average position of this segment, assuming it's roughly quadratic
+    var pCenter = path.getPointAtLength(mod(positionOnPath, totalPathLen));
+    var x = (pCenter.x * 4 + p0.x + p1.x) / 6;
+    var y = (pCenter.y * 4 + p0.y + p1.y) / 6;
+
+    var out = {x: x, y: y, theta: theta};
+    locationCache[positionOnPath] = out;
+    return out;
+};
+
+exports.clearLocationCache = function() {
+    workingPath = null;
+};
+
+/*
+ * Find the segment of `path` that's within the visible area
+ * given by `bounds` {left, right, top, bottom}, to within a
+ * precision of `buffer` px
+ *
+ * returns: undefined if nothing is visible, else object:
+ * {
+ *   min: position where the path first enters bounds, or 0 if it
+ *        starts within bounds
+ *   max: position where the path last exits bounds, or the path length
+ *        if it finishes within bounds
+ *   len: max - min, ie the length of visible path
+ *   total: the total path length - just included so the caller doesn't
+ *        need to call path.getTotalLength() again
+ *   isClosed: true iff the start and end points of the path are both visible
+ *        and are at the same point
+ * }
+ *
+ * Works by starting from either end and repeatedly finding the distance from
+ * that point to the plot area, and if it's outside the plot, moving along the
+ * path by that distance (because the plot must be at least that far away on
+ * the path). Note that if a path enters, exits, and re-enters the plot, we
+ * will not capture this behavior.
+ */
+exports.getVisibleSegment = function getVisibleSegment(path, bounds, buffer) {
+    var left = bounds.left;
+    var right = bounds.right;
+    var top = bounds.top;
+    var bottom = bounds.bottom;
+
+    var pMin = 0;
+    var pTotal = path.getTotalLength();
+    var pMax = pTotal;
+
+    var pt0, ptTotal;
+
+    function getDistToPlot(len) {
+        var pt = path.getPointAtLength(len);
+
+        // hold on to the start and end points for `closed`
+        if(len === 0) pt0 = pt;
+        else if(len === pTotal) ptTotal = pt;
+
+        var dx = (pt.x < left) ? left - pt.x : (pt.x > right ? pt.x - right : 0);
+        var dy = (pt.y < top) ? top - pt.y : (pt.y > bottom ? pt.y - bottom : 0);
+        return Math.sqrt(dx * dx + dy * dy);
+    }
+
+    var distToPlot = getDistToPlot(pMin);
+    while(distToPlot) {
+        pMin += distToPlot + buffer;
+        if(pMin > pMax) return;
+        distToPlot = getDistToPlot(pMin);
+    }
+
+    distToPlot = getDistToPlot(pMax);
+    while(distToPlot) {
+        pMax -= distToPlot + buffer;
+        if(pMin > pMax) return;
+        distToPlot = getDistToPlot(pMax);
+    }
+
+    return {
+        min: pMin,
+        max: pMax,
+        len: pMax - pMin,
+        total: pTotal,
+        isClosed: pMin === 0 && pMax === pTotal &&
+            Math.abs(pt0.x - ptTotal.x) < 0.1 &&
+            Math.abs(pt0.y - ptTotal.y) < 0.1
+    };
+};
+
+/**
+ * Find point on SVG path corresponding to a given constraint coordinate
+ *
+ * @param {SVGPathElement} path
+ * @param {Number} val : constraint coordinate value
+ * @param {String} coord : 'x' or 'y' the constraint coordinate
+ * @param {Object} opts :
+ *  - {Number} pathLength : supply total path length before hand
+ *  - {Number} tolerance
+ *  - {Number} iterationLimit
+ * @return {SVGPoint}
+ */
+exports.findPointOnPath = function findPointOnPath(path, val, coord, opts) {
+    opts = opts || {};
+
+    var pathLength = opts.pathLength || path.getTotalLength();
+    var tolerance = opts.tolerance || 1e-3;
+    var iterationLimit = opts.iterationLimit || 30;
+
+    // if path starts at a val greater than the path tail (like on vertical violins),
+    // we must flip the sign of the computed diff.
+    var mul = path.getPointAtLength(0)[coord] > path.getPointAtLength(pathLength)[coord] ? -1 : 1;
+
+    var i = 0;
+    var b0 = 0;
+    var b1 = pathLength;
+    var mid;
+    var pt;
+    var diff;
+
+    while(i < iterationLimit) {
+        mid = (b0 + b1) / 2;
+        pt = path.getPointAtLength(mid);
+        diff = pt[coord] - val;
+
+        if(Math.abs(diff) < tolerance) {
+            return pt;
+        } else {
+            if(mul * diff > 0) {
+                b1 = mid;
+            } else {
+                b0 = mid;
+            }
+            i++;
+        }
+    }
+    return pt;
+};
+
+
+/***/ }),
+/* 49 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+var timerCache = {};
+
+/**
+ * Throttle a callback. `callback` executes synchronously only if
+ * more than `minInterval` milliseconds have already elapsed since the latest
+ * call (if any). Otherwise we wait until `minInterval` is over and execute the
+ * last callback received while waiting.
+ * So the first and last events in a train are always executed (eventually)
+ * but some of the events in the middle can be dropped.
+ *
+ * @param {string} id: an identifier to mark events to throttle together
+ * @param {number} minInterval: minimum time, in milliseconds, between
+ *   invocations of `callback`
+ * @param {function} callback: the function to throttle. `callback` itself
+ *   should be a purely synchronous function.
+ */
+exports.throttle = function throttle(id, minInterval, callback) {
+    var cache = timerCache[id];
+    var now = Date.now();
+
+    if(!cache) {
+        /*
+         * Throw out old items before making a new one, to prevent the cache
+         * getting overgrown, for example from old plots that have been replaced.
+         * 1 minute age is arbitrary.
+         */
+        for(var idi in timerCache) {
+            if(timerCache[idi].ts < now - 60000) {
+                delete timerCache[idi];
+            }
+        }
+        cache = timerCache[id] = {ts: 0, timer: null};
+    }
+
+    _clearTimeout(cache);
+
+    function exec() {
+        callback();
+        cache.ts = Date.now();
+        if(cache.onDone) {
+            cache.onDone();
+            cache.onDone = null;
+        }
+    }
+
+    if(now > cache.ts + minInterval) {
+        exec();
+        return;
+    }
+
+    cache.timer = setTimeout(function() {
+        exec();
+        cache.timer = null;
+    }, minInterval);
+};
+
+exports.done = function(id) {
+    var cache = timerCache[id];
+    if(!cache || !cache.timer) return Promise.resolve();
+
+    return new Promise(function(resolve) {
+        var previousOnDone = cache.onDone;
+        cache.onDone = function onDone() {
+            if(previousOnDone) previousOnDone();
+            resolve();
+            cache.onDone = null;
+        };
+    });
+};
+
+/**
+ * Clear the throttle cache for one or all timers
+ * @param {optional string} id:
+ *   if provided, clear just this timer
+ *   if omitted, clear all timers (mainly useful for testing)
+ */
+exports.clear = function(id) {
+    if(id) {
+        _clearTimeout(timerCache[id]);
+        delete timerCache[id];
+    } else {
+        for(var idi in timerCache) exports.clear(idi);
+    }
+};
+
+function _clearTimeout(cache) {
+    if(cache && cache.timer !== null) {
+        clearTimeout(cache.timer);
+        cache.timer = null;
+    }
+}
+
+
+/***/ }),
+/* 50 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/**
+ * Allow referencing a graph DOM element either directly
+ * or by its id string
+ *
+ * @param {HTMLDivElement|string} gd: a graph element or its id
+ *
+ * @returns {HTMLDivElement} the DOM element of the graph
+ */
+module.exports = function(gd) {
+    var gdElement;
+
+    if(typeof gd === 'string') {
+        gdElement = document.getElementById(gd);
+
+        if(gdElement === null) {
+            throw new Error('No DOM element with id \'' + gd + '\' exists on the page.');
+        }
+
+        return gdElement;
+    } else if(gd === null || gd === undefined) {
+        throw new Error('DOM element provided is null or undefined');
+    }
+
+    return gd;  // otherwise assume that gd is a DOM element
+};
+
+
+/***/ }),
+/* 51 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/**
+ * Clear responsive handlers (if any).
+ *
+ * @param {DOM node or object} gd : graph div object
+ */
+module.exports = function clearResponsive(gd) {
+    if(gd._responsiveChartHandler) {
+        window.removeEventListener('resize', gd._responsiveChartHandler);
+        delete gd._responsiveChartHandler;
+    }
+};
+
+
+/***/ }),
+/* 52 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+/**
+ * General helper to manage trace groups based on calcdata
+ *
+ * @param {d3.selection} traceLayer: a selection containing a single group
+ *     to draw these traces into
+ * @param {array} cdModule: array of calcdata items for this
+ *     module and subplot combination. Assumes the calcdata item for each
+ *     trace is an array with the fullData trace attached to the first item.
+ * @param {string} cls: the class attribute to give each trace group
+ *     so you can give multiple classes separated by spaces
+ */
+module.exports = function makeTraceGroups(traceLayer, cdModule, cls) {
+    var traces = traceLayer.selectAll('g.' + cls.replace(/\s/g, '.'))
+        .data(cdModule, function(cd) { return cd[0].trace.uid; });
+
+    traces.exit().remove();
+
+    traces.enter().append('g')
+        .attr('class', cls);
+
+    traces.order();
+
+    return traces;
+};
+
+
+/***/ }),
+/* 53 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var Registry = __webpack_require__(14);
+
+/**
+ * localize: translate a string for the current locale
+ *
+ * @param {object} gd: the graphDiv for context
+ *  gd._context.locale determines the language (& optional region/country)
+ *  the dictionary for each locale may either be supplied in
+ *  gd._context.locales or globally via Plotly.register
+ * @param {string} s: the string to translate
+ */
+module.exports = function localize(gd, s) {
+    var locale = gd._context.locale;
+
+    /*
+     * Priority of lookup:
+     *     contextDicts[locale],
+     *     registeredDicts[locale],
+     *     contextDicts[baseLocale], (if baseLocale is distinct)
+     *     registeredDicts[baseLocale]
+     * Return the first translation we find.
+     * This way if you have a regionalization you are allowed to specify
+     * only what's different from the base locale, everything else will
+     * fall back on the base.
+     */
+    for(var i = 0; i < 2; i++) {
+        var locales = gd._context.locales;
+        for(var j = 0; j < 2; j++) {
+            var dict = (locales[locale] || {}).dictionary;
+            if(dict) {
+                var out = dict[s];
+                if(out) return out;
+            }
+            locales = Registry.localeRegistry;
+        }
+
+        var baseLocale = locale.split('-')[0];
+        if(baseLocale === locale) break;
+        locale = baseLocale;
+    }
+
+    return s;
+};
+
+
+/***/ }),
+/* 54 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var d3 = __webpack_require__(6);
+var isNumeric = __webpack_require__(0);
+
+var NOTEDATA = [];
+
+/**
+ * notifier
+ * @param {String} text The person's user name
+ * @param {Number} [delay=1000] The delay time in milliseconds
+ *          or 'long' which provides 2000 ms delay time.
+ * @return {undefined} this function does not return a value
+ */
+module.exports = function(text, displayLength) {
+    if(NOTEDATA.indexOf(text) !== -1) return;
+
+    NOTEDATA.push(text);
+
+    var ts = 1000;
+    if(isNumeric(displayLength)) ts = displayLength;
+    else if(displayLength === 'long') ts = 3000;
+
+    var notifierContainer = d3.select('body')
+        .selectAll('.plotly-notifier')
+        .data([0]);
+    notifierContainer.enter()
+        .append('div')
+        .classed('plotly-notifier', true);
+
+    var notes = notifierContainer.selectAll('.notifier-note').data(NOTEDATA);
+
+    function killNote(transition) {
+        transition
+            .duration(700)
+            .style('opacity', 0)
+            .each('end', function(thisText) {
+                var thisIndex = NOTEDATA.indexOf(thisText);
+                if(thisIndex !== -1) NOTEDATA.splice(thisIndex, 1);
+                d3.select(this).remove();
+            });
+    }
+
+    notes.enter().append('div')
+        .classed('notifier-note', true)
+        .style('opacity', 0)
+        .each(function(thisText) {
+            var note = d3.select(this);
+
+            note.append('button')
+                .classed('notifier-close', true)
+                .html('&times;')
+                .on('click', function() {
+                    note.transition().call(killNote);
+                });
+
+            var p = note.append('p');
+            var lines = thisText.split(/<br\s*\/?>/g);
+            for(var i = 0; i < lines.length; i++) {
+                if(i) p.append('br');
+                p.append('span').text(lines[i]);
+            }
+
+            note.transition()
+                    .duration(700)
+                    .style('opacity', 1)
+                .transition()
+                    .delay(ts)
+                    .call(killNote);
+        });
+};
+
+
+/***/ }),
+/* 55 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+
+/**
+ * Return news array containing only the unique items
+ * found in input array.
+ *
+ * IMPORTANT: Note that items are considered unique
+ * if `String({})` is unique. For example;
+ *
+ *  Lib.filterUnique([ { a: 1 }, { b: 2 } ])
+ *
+ *  returns [{ a: 1 }]
+ *
+ * and
+ *
+ *  Lib.filterUnique([ '1', 1 ])
+ *
+ *  returns ['1']
+ *
+ *
+ * @param {array} array base array
+ * @return {array} new filtered array
+ */
+module.exports = function filterUnique(array) {
+    var seen = {};
+    var out = [];
+    var j = 0;
+
+    for(var i = 0; i < array.length; i++) {
+        var item = array[i];
+
+        if(seen[item] !== 1) {
+            seen[item] = 1;
+            out[j++] = item;
+        }
+    }
+
+    return out;
+};
+
+
+/***/ }),
+/* 56 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+/** Filter out object items with visible !== true
+ *  insider array container.
+ *
+ *  @param {array of objects} container
+ *  @return {array of objects} of length <= container
+ *
+ */
+module.exports = function filterVisible(container) {
+    var filterFn = isCalcData(container) ? calcDataFilter : baseFilter;
+    var out = [];
+
+    for(var i = 0; i < container.length; i++) {
+        var item = container[i];
+        if(filterFn(item)) out.push(item);
+    }
+
+    return out;
+};
+
+function baseFilter(item) {
+    return item.visible === true;
+}
+
+function calcDataFilter(item) {
+    var trace = item[0].trace;
+    return trace.visible === true && trace._length !== 0;
+}
+
+function isCalcData(cont) {
+    return (
+        Array.isArray(cont) &&
+        Array.isArray(cont[0]) &&
+        cont[0][0] &&
+        cont[0][0].trace
+    );
+}
+
+
+/***/ }),
+/* 57 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+* Copyright 2012-2019, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+
+
+
+var isNumeric = __webpack_require__(0);
+
+var BADNUM = __webpack_require__(7).BADNUM;
+
+// precompile for speed
+var JUNK = /^['"%,$#\s']+|[, ]|['"%,$#\s']+$/g;
+
+/**
+ * cleanNumber: remove common leading and trailing cruft
+ * Always returns either a number or BADNUM.
+ */
+module.exports = function cleanNumber(v) {
+    if(typeof v === 'string') {
+        v = v.replace(JUNK, '');
+    }
+
+    if(isNumeric(v)) return Number(v);
+
+    return BADNUM;
+};
+
+
+/***/ })
+/******/ ])});;
\ No newline at end of file