Visualea

[thomasarsouze]

From Python2 to Python3 and Qt4 to Qt5/6 and more general developments of Visualea

[pradal]

To create a dev environment, install in dev mode,

• Create a conda environment with plantgl and pglviewer

conda create -n visualea -c openalea3 -c conda-forge openalea.plantgl pyqglviewer
conda activate visualea
conda install -c openalea3 -c conda-forge numpy scipy qtconsole pandas matplotlib openalea.sconsx networkx ipykernel ipyparallel

• clone from the openalea org

1. core
2. vpltk
3. grapheditor
4. oalab
5. openalea-components
6. visualea

• Checkout the visualea branch

• Install each module using the develop mode
  python setup.py develop

• Run visualeain a shell or debug it (in VS Code) from visualeagui.py

[pradal]

@baugetfa Welcome to the VisuAlea discussion with @thomasarsouze

[baugetfa]

Fixing uncaught exception that kill the application
see:

• incompatibility with version earlier than PyQt v5.5 link
• some code on stackoverflow

What I did commit on visualea:

• commit 029f367 commented raise e in decorator that handle error exception. No need to raise something that we caught.
• 6743fa0 added a sys.excepthook at the beginning of visualeagui.py, to catch any exception that passed.

[pradal]

Replace vpltk by QtPy

1. First move all the PyQt4 syntax to new syntax

• pyqtSignal to Signal
• pyqtSlot to Slot
• pyqtX* to X*
• QT_VERSION_STR to version
• QtGUI.QTabWidget to QtWidgets

When everything is replaced and tested, move to step 2

2. Replace openalea.vpltk.qt by qtpy

[baugetfa]

I think everything is ported to qtpy. The routines that were toolkit were moved to the module using them. In the case of designer.py that was in vpltk.qt it has been moved to visualea.qt because:

• it is used only by visualea and oalab
• oalab had existing referencies to visualea

Tests
All tests passed, (did not test sub-modules of openalea-component because it is WIP). However, in oalab the editor in openalea.oalab.paradigm.controller.ParadigmController used by default was pyqode that is not compatible with the last pyflakes version. Therefore, an error occurs. To be able to pass tests, I disabled it to only use the oalab editor openalea.oalab.editor.text_editor.RichTextEditor. See for example this issue

[baugetfa]

A branch visualea has been created again, after the release, in openalea.visualea as a dev branch

[pradal]

Visualea has been released with deps on grapheditor & the like + stdlib

[baugetfa]

Visualea works on windows 10
I just tried an install on windows 10, without plantgl (with it it last forever), that went smoothly. The only thing is that visualea is not registered as an exe. But when I run python visualeagui.py from miniconda3\envs\visualea\Lib\site-packages\OpenAlea.Visualea-2.3.3-py3.9.egg\openalea\visualea, it run.