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dxf2tbl2svg.js
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///<file name="dxf2tbl2svg.js" path="/.../dxf2tbl2svg.js" type="javascript">
///<section name="auxiliary globals">
///<variable name="DEBUG_LINE_NR"> helper DEBUG constant </variable>
DEBUG_LINE_NR = 10000000;
///<variable name="svgNS"> well known value </variable>
var svgNS = "http://www.w3.org/2000/svg";
///<variable name="Active_DXF2TBL"> last created instance of class DXF2TBL </variable>
Active_DXF2TBL = null;
///<variable name="Active_DXFdrawerSVG"> last created instance of class DXFdrawerSVG </variable>
Active_DXFdrawerSVG = null;
///</section>
///<section name="TARGET" desc="LIBRARY independant target functionality">
///<class name="DXF2TBL">
///<function name="DXF2TBL" type="constructor">
///<param name="dxftxt" type="String" optional="optional"> AutoCAD DXF text </param>
///<desc> DXF2TBL class je priamo (bez new) volatelna komponenta
/// vykonavajuca citanie, rozbor a konverziu DXF textoveho suboru do tabuliek
///</desc>
///<call>DXF2TBL.prototype.init</call>
DXF2TBL = function( dxftxt ) {
if (!(this instanceof DXF2TBL)) {
return new DXF2TBL( dxftxt );
}
this.dxftxt = dxftxt || '';
Active_DXF2TBL = this;
return this.init();
}
///</function>
///<instance name="DXF2TBL">
///<property name="dxftxt" type="String">actual AutoCAD DXF text </property>
///<property name="sections" type="Object"> DXF main sections as arrays of tuples </property>
///<property name="a_HEADER" type="Array"> array of HEADER section objects </property>
///<property name="a_CLASSES" type="Array"> array of CLASSES section objects </property>
///<property name="a_TABLES" type="Array"> array of TABLES section objects </property>
///<property name="a_BLOCKS" type="Array"> array of BLOCKS section objects </property>
///<property name="a_ENTITIES" type="Array"> array of ENTITIES section objects </property>
///<property name="a_OBJECTS" type="Array"> array of OBJECTS section objects </property>
///<property name="a_THUMBNAILIMAGE" type="Array"> array of THUMBNAILIMAGE section objects </property>
///</instance>
///<prototype name="DXF2TBL">
DXF2TBL.prototype = {
init : function() {
this.sections = {};
this.a_HEADER = [];
this.a_CLASSES = [];
this.a_TABLES = [];
this.a_BLOCKS = [];
this.a_ENTITIES = [];
this.a_OBJECTS = [];
this.a_THUMBNAILIMAGE = [];
return this;
}
, loadDXFfile : function( filepath, callback, svg_callback ) {
var me = this
, cfg = me.cfg
, callback = callback || function( resp ) {
me.make(resp,__,svg_callback);
}
;
if (! filepath) { // use FileReader API to read local file
} else { // use loadman or XHR to load server side stored file
if (typeof loadman != 'undefined') {
loadman(filepath, {
method: 'POST'
, respXML : false
, callback : function( el, resp ) {
callback(resp,svg_callback);
}
, forceUserCallback : true
, waiting : -1
});
} else {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 ) {
callback(xmlhttp.responseText,svg_callback);
}
};
xmlhttp.open('POST', filepath, true);
xmlhttp.send();
}
}
}
, dxf_get_sections : function ( dxftxt ) {
dxftxt = dxftxt || this.dxftxt;
var lines = dxftxt.split("\n")
, cnt=0
// , progres_ENT = gID('input#progres_ENT')
, a_section = ""
;
for(var i=0; i < lines.length; i+=2) {
if (!lines[i]) {
console.log('empty row nr.'+i);
break;
}
// if ( (++cnt % 100) == 0 ) {
// progres_ENT.value = cnt; //console.log(cnt);
// }
var tuple = { gcode: parseInt(lines[i], 10), value: lines[i+1]/*.trim()*/.replace(/[\r\n]*/g,'') };
if ((tuple.gcode == 0) && (tuple.value.trim() == 'SECTION')) {
i+=2;
tuple = { group_code: parseInt(lines[i], 10), section_name: lines[i+1].trim() };
this.sections[ a_section = tuple.section_name ] = {offset:i/2, list:[]};
} else {
this.sections[ a_section ].list.push( tuple );
}
}
lines = []; // not needed more
return this.sections;
}
, add_obj : function ( obj, name, val) {
if (!isDef(obj[name])) {
obj[name] = val;
return obj[name]; // vrat novy objekt samotny
} else {
if (!isArr(obj[name])) {
obj[name] = [obj[name]];
}
obj[name].push(val);
return obj[name][obj[name].length-1]; // vrat posledne pridany prvok pola
}
}
, separate_arrays : function ( section, outer, splitCodes, geoms ) {
outer.length = 0;
splitCodes = splitCodes || [0];
geoms = geoms || [10,11,12,13, 20,21,22,23,30,31,32,33, 40,41,42,43, 72];
var section_list = section.list
, le = section_list.length
, section_offset = section.offset
, objekt, primar, geom = null
, obj_name
;
for(var i=0; i< le; i++) {
var gv = section_list[i];
if (i >= le-2) { // remove possible ENDSEC, EOF
if ( (gv.gcode == 0) &&
( (gv.value == 'ENDSEC') || (gv.value == 'EOF') )
)
continue;
}
if (i >= DEBUG_LINE_NR) {
debugger;
}
if ( splitCodes.indexOf(gv.gcode) == -1 ) {
var ig = geoms.indexOf(gv.gcode);
if (ig > -1) {
if (ig < 4) { // after every X create GEOM 10,11,12,13
if ( ! objekt._GEOM ) {
objekt._GEOM = [];
}
objekt._GEOM.push({});
geom = objekt._GEOM[objekt._GEOM.length-1];
}
this.add_obj( geom || objekt, gv.gcode, gv.value );
} else {
this.add_obj( objekt, gv.gcode, gv.value );
}
} else {
if (gv.gcode == /*0*/splitCodes[0]) {
if (primar) {
outer.push(primar);
}
geom = null;
objekt = primar = { _name_: gv.value, _line_: section_offset + i, _idx_: i};
} else {
if (gv.gcode == 100) {
obj_name = gv.value;
objekt = primar;
if (isDef(DXFstructurer[obj_name])) {
i = this.sequencer(section, i, objekt, DXFstructurer[obj_name]);
continue;
}
}
objekt = this.add_obj( objekt, gv.value, {} );
}
}
}
if (primar) {
outer.push(primar);
}
return outer;
}
, sequencer : function( section, i, primar, sequence ) {
var section_list = section.list, gv
, objekt = primar
, par, parents = []
, finded = false, end = false
, sd, seq = sequence, act_j = -1, last_j = 0, end_j = seq.length, dir_j = 1 // 1: up -1: down
, up_down = function() {
act_j += dir_j;
if (dir_j == 1) { // going up
if (act_j == end_j) {
end_j = -1; act_j = last_j; dir_j = -1;
}
return true;
}
if (dir_j == -1) { //going down
return act_j != end_j;
}
}
;
while( !end ) {
gv = section_list[i]; finded = false;
// gcodes are not alway ordered as in DXF reference, so logic to try:
// go from actual [act_j] up to end of seq, if not finded,
// go from actual [act_j] down to start of seq, if not finded
// go one level higher
// for(var j=act_j; j<seq.length; j++) {
while( up_down() ) {
sd = seq[act_j][gv.gcode];
if (isDef(sd)) { // finded gcode
if (isDef(sd.fi)) {
if (! sd.fi(gv.value)) {
continue;
}
}
finded = true;
if ( ! isStr(sd) ) { // structured variable
parents.push({o:objekt,s:seq, j:act_j});
objekt = this.add_obj( objekt, sd.n || gv.value, {} );
seq = sd.t; act_j = -1; last_j = 0;
} else {
last_j = act_j;
}
end_j = seq.length; dir_j = 1 // finded ... switch dir to UP
this.add_obj( objekt, gv.gcode, gv.value );
i++;
break;
}
}
if (finded) {
continue;
}
if (parents.length) {
par = parents.pop(); objekt = par.o;
seq = par.s; act_j = par.j-1; last_j = par.j; end_j = seq.length, dir_j = 1 // up
continue;
}
end = true;
}
return i-1; // last was not finded
}
, separall_arrays : function () {
this.a_HEADER = []; if (this.sections.HEADER && this.sections.HEADER.list.length) {
this.separate_arrays(this.sections.HEADER, this.a_HEADER,[9,100]);
}
this.a_CLASSES = []; if (this.sections.CLASSES && this.sections.CLASSES.list.length) {
this.separate_arrays(this.sections.CLASSES, this.a_CLASSES,[0,100]);
}
this.a_TABLES = []; if (this.sections.TABLES && this.sections.TABLES.list.length) {
this.separate_arrays(this.sections.TABLES, this.a_TABLES,[0,100]);
}
this.a_BLOCKS = []; if (this.sections.BLOCKS && this.sections.BLOCKS.list.length) {
this.separate_arrays(this.sections.BLOCKS, this.a_BLOCKS,[0,100]);
}
this.a_ENTITIES = []; if (this.sections.ENTITIES && this.sections.ENTITIES.list.length) {
this.separate_arrays(this.sections.ENTITIES, this.a_ENTITIES,[0,100]);
}
this.a_OBJECTS = []; if (this.sections.OBJECTS && this.sections.OBJECTS.list.length) {
this.separate_arrays(this.sections.OBJECTS, this.a_OBJECTS,[0,100],[]);
}
this.a_THUMBNAILIMAGE = []; if (this.sections.THUMBNAILIMAGE && this.sections.THUMBNAILIMAGE.list.length) {
this.separate_arrays(this.sections.THUMBNAILIMAGE, this.a_THUMBNAILIMAGE,[90,100],[]);
}
}
, find_handle_in_array : function ( section, id, tag, item_name, last_idx ) {
tag = tag || '5'; // default id
last_idx = parseInt(last_idx);
last_idx = isNaN(last_idx) ? -1 : Math.max(last_idx,-1);
var i,j, obj, keys
, checker = new RegExp("^_(\\.([\\w\\d_]+))?\\\."+tag+"$","i")
, matches
;
for(i=last_idx+1; i < section.length; i++) {
obj = section[i];
if (item_name && (obj._name_ != item_name)) {
continue;
}
keys = gopn(obj,'_');
for(j=0;j<keys.length;j++) {
//if (isDef(obj[tag]) && (obj[tag]==id) ) {
matches = checker.exec(keys[j]);
if ( matches && ((matches[2] ? obj[matches[2]][tag] : obj[tag]) == id) ) {
return {
index: i
, section: section
, object: obj
};
}
}
}
}
// D9B071D01A0C8010
, make : function( dxftxt, drawer, svg_callback ) {
var me = this
, pxt = gID('pending_xslt_trafo')
;
this.init();
if (pxt) { pxt.style.display=''; }
setTimeout(function() { // to update DOM
drawer = drawer || Active_DXFdrawerSVG || DXFdrawerSVG(me);
me.drawer = drawer;
me.dxftxt = dxftxt || me.dxftxt;
me.dxf_get_sections(); // read and parse DXF
me.separall_arrays(); // prepare analytics of DXF entities
var svgG = drawer.prepare_svg();
return drawer.draw_entities( svgG, __, __, function() { // draw SVG, and then call user callback
if (pxt) { pxt.style.display='none'; }
if (typeof svg_callback == 'function') {
svg_callback( svgG );
}
});
},1);
}
}
///</class> <!-- name="DXF2TBL" -->
///<class name="DXFdrawerSVG">
///<function name="DXFdrawerSVG" type="constructor">
///<param name="inst_DXF2TBL" type="CLASS" > instance of DXF2TBL class</param>
///<param name="cfg" type="Object" optional="optional"> configuration object
/// <item name="svgG" type="SVGGElement" optional="optional"> generated SVG holder </item>
/// <item name="clip_min_x" type="Number"> DXF geometry clipping </item>
/// <item name="clip_max_x" type="Number"> DXF geometry clipping </item>
/// <item name="clip_min_y" type="Number"> DXF geometry clipping </item>
/// <item name="clip_min_y" type="Number"> DXF geometry clipping </item>
/// <item name="clip_min_z" type="Number"> DXF geometry clipping </item>
/// <item name="clip_min_z" type="Number"> DXF geometry clipping </item>
/// <item name="DECS_M" type="Number"> rounding decimals divider </item>
///</param>
///<desc> DXFdrawerSVG class je priamo (bez new) volatelna komponenta
/// vykonavajuca konverziu vysledkov DXF analyzy do SVG grafickeho formatu
///</desc>
///<call>DXF2TBL.prototype.init</call>
DXFdrawerSVG = function( inst_DXF2TBL, cfg ) {
if (!(this instanceof DXFdrawerSVG)) {
return new DXFdrawerSVG( inst_DXF2TBL, cfg );
}
this.inst_DXF2TBL = inst_DXF2TBL;
this.cfg = cfg || this.default_cfg;
this.init();
Active_DXFdrawerSVG = this;
return this;
}
///</function>
///<instance name="DXF2TBL">
///<property name="inst_DXF2TBL" type="CLASS" > instance of DXF2TBL class</param>
///<property name="cfg" type="Object">actual configuation </property>
///<property name="layer_groups" type="Object"> layers descriptions </property>
///<property name="inserter_def" type="Object"> actual INSERT state </property>
///<property name="missing" type="Array"> list of unknown entity drawers </property>
///<property name="svg_min_x" type="Number"> SVG dimensioning </property>
///<property name="svg_max_x" type="Number"> SVG dimensioning </property>
///<property name="svg_min_y" type="Number"> SVG dimensioning </property>
///<property name="svg_max_y" type="Number"> SVG dimensioning </property>
///</instance>
///<prototype name="DXF2TBL">
DXFdrawerSVG.prototype = {
default_cfg : {
svgG_gID : 'g#dxf2svg'
, svgG : null
, svg_viewBox : ''
, svg_bckColor : '#FFFFFF'
, clip_min_x : 0 //-572500.0
, clip_max_x : 100000000.0 //-562500.0
, clip_min_y : 0 //-1225000.0
, clip_max_y : 100000000.0 //-1217000.0
, clip_min_z : 0
, clip_max_z : 100000000.0
, DECS_M : 1000
}
, init : function() {
this.layer_groups = {};
this.inserter_def = null;
this.missing = [];
this.svg_min_x = 100000000.0;
this.svg_max_x = -100000000.0;
this.svg_min_y = 100000000.0;
this.svg_max_y = -100000000.0;
}
, set_cfg : function( cfgORform ) {
var cfg = this.default_cfg
, keys = Object.keys(cfg);
;
if (cfgORform instanceof HTMLFormElement) {
var frme = cfgORform.elements;
keys.forEach( function(v) {
if (isDef(frme[v])) {
cfg[v] = (frme[v].type=='number')
? parseFloat(frme[v].value)
: frme[v].value
;
}
})
} else {
keys.forEach( function(v) {
if (isDef(cfgORform[v])) {
cfg[v] = cfgORform[v];
}
})
}
return( this.cfg = cfg );
}
, log_missing : function ( section_mark, idx, ent_name ) {
// save in format printable by print_section(drawer.missing)
this.missing.push({ gcode:idx, value: section_mark+': '+ ent_name });
console.log('Missing ['+ent_name+']'+' at '+section_mark+' index : '+idx );
var konzola = gID('#konzola');
if (konzola) {
konzola.innerHTML ='<div><span>'+section_mark
+'</span><span>'+' index : '+idx
+'</span><span>'+'Missing ['+ent_name+']'+'</span></div>'
+ konzola.innerHTML
;
if (konzola.children.length > 50) {
konzola.removeChild(konzola.firstElementChild);
}
}
}
, rounder : function ( num, chck ) {
var val = isNaN(num) ? num : Math.round( num * this.cfg.DECS_M ) / this.cfg.DECS_M;
switch(chck) {
case 'x' :
this.svg_min_x = Math.min(this.svg_min_x, val);
this.svg_max_x = Math.max(this.svg_max_x, val);
break;
case 'y' :
this.svg_min_y = Math.min(this.svg_min_y, val);
this.svg_max_y = Math.max(this.svg_max_y, val);
break;
}
return val;
}
, ensureArr : function (a) {
return isArr(a) ? a : [a];
}
// structureENT(ent,[{n:'AcDbEntity',t:[8]},{n:'AcDbLine',t:[19,11,20,21]}])
, structureENT : function(ent, desc) { // [{n:name, t:[tags]}, ..., {n:name, t:[tags]}]
desc.forEach( function(v) {
var name = v.n
, tags = v.t
;
if (! ent[name]) {
ent[name] = {};
tags.forEach( function(t) {
ent[name][t] = ent[t];
delete ent[t];
});
}
});
return ent;
}
, layer : function(layer, parent) {
var lg = this.layer_groups
, le = Object.keys(lg).length
;
parent = this.holder;
if (!isDef(lg[layer])) {
var src = '<g id="lg_'+le+'" inkscape:label="'+layer+'" inkscape:groupmode="layer">';
lg[layer]={ id:'lg_'+le, src :[src], g:null };
if (parent) {
var s = parent.ownerDocument.createElementNS(svgNS,'g');
s.setAttribute('id','lg_'+le);
s.setAttribute('inkscape:label',layer);
s.setAttribute('inkscape:groupmode',"layer");
lg[layer].g = s;
parent.appendChild(s);
}
}
return lg[layer];
}
, sourcer : function() {
var src = ''
, lg = this.layer_groups
;
Object.keys(lg).forEach( function(v) {
var g = lg[v];
if (g.src[g.src.length-1] != '</g>') {
g.src.push('</g>');
}
src+= g.src.join("\n");
});
return src;
}
, POINT : function(ent, parent, referer) {
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDbPoint', t:['_GEOM'] } //t:[10,20] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, cx = this.rounder( parseFloat(ent.AcDbPoint._GEOM[0]['10']) +(this.inserter_def ? this.inserter_def.x :0) - (referer ? 0 : this.cfg.clip_min_x) , 'x')
, cy = this.rounder( - ( parseFloat(ent.AcDbPoint._GEOM[0]['20']) +(this.inserter_def ? this.inserter_def.y :0) - (referer ? 0 : this.cfg.clip_min_y) ) , 'y')
, r = 0.1
, src = '<circle id="'+ iid +'" class="pen1 l_'+layid+'" cx="'+cx+'" cy="'+cy+'" r="'+r+'"'
+' data-drawer="POINT"'
+(referer ? ' data_referer="'+referer+'"' : '')
+(this.inserter_def ? ' data-inserter="'+this.inserter_def.id+'"' : '')
+'/>'
, gpar = lg && lg.g || parent
;
if (lg) {
this.layer_groups[layer].src.push(src);
}
if (gpar) {
var s = gpar.ownerDocument.createElementNS(svgNS,'circle');
s.setAttribute('data-drawer','POINT');
s.setAttribute('cx',cx);
s.setAttribute('cy',cy);
s.setAttribute('r',r);
s.setAttribute('class',"pen1 l_"+layid);
s.setAttribute('id',iid);
if (referer) {
s.setAttribute('data-referef',referer);
}
if (this.inserter_def) {
s.setAttribute('data-inserter',this.inserter_def.id);
}
gpar.appendChild(s);
}
return src;
}
, CIRCLE : function(ent, parent, referer) {
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDbCircle', t:['_GEOM'] } //, t:[10,20,40] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, cx = this.rounder( parseFloat(ent.AcDbCircle._GEOM[0]['10']) +(this.inserter_def ? this.inserter_def.x :0) - (referer ? 0 : this.cfg.clip_min_x) , 'x')
, cy = this.rounder( - ( parseFloat(ent.AcDbCircle._GEOM[0]['20']) +(this.inserter_def ? this.inserter_def.y :0) - (referer ? 0 : this.cfg.clip_min_y) ) , 'y')
// 50 start angle
// 51 end angle
, r = this.rounder( parseFloat(ent.AcDbCircle._GEOM[0]['40']) )
, src = '<circle id="'+ iid +'" class="pen1 l_'+layid+'" cx="'+cx+'" cy="'+cy+'" r="'+r+'"'
+' data-drawer="CIRCLE"'
+(referer ? ' data_referer="'+referer+'"' : '')
+(this.inserter_def ? ' data-inserter="'+this.inserter_def.id+'"' : '')
+'/>'
, gpar = lg && lg.g || parent
;
if (lg) {
this.layer_groups[layer].src.push(src);
}
if (gpar) {
var s = gpar.ownerDocument.createElementNS(svgNS,'circle');
s.setAttribute('data-drawer','CIRCLE');
s.setAttribute('cx',cx);
s.setAttribute('cy',cy);
s.setAttribute('r',r);
s.setAttribute('class',"pen1 l_"+layid);
s.setAttribute('id',iid);
if (referer) {
s.setAttribute('data-referef',referer);
}
if (this.inserter_def) {
s.setAttribute('data-inserter',this.inserter_def.id);
}
gpar.appendChild(s);
}
return src;
}
// , ELLIPSE : TODO
, LINE : function(ent, parent, referer) {
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDbLine', t:['_GEOM'] } //, t:[10,11,20,21] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, x1 = this.rounder( parseFloat(ent.AcDbLine._GEOM[0]['10']) +(this.inserter_def ? this.inserter_def.x :0) - (referer ? 0 : this.cfg.clip_min_x) , 'x')
, x2 = this.rounder( parseFloat(ent.AcDbLine._GEOM[1]['11']) +(this.inserter_def ? this.inserter_def.x :0) - (referer ? 0 : this.cfg.clip_min_x) , 'x')
, y1 = this.rounder( - ( parseFloat(ent.AcDbLine._GEOM[0]['20']) +(this.inserter_def ? this.inserter_def.y :0) - (referer ? 0 : this.cfg.clip_min_y) ) , 'y')
, y2 = this.rounder( - ( parseFloat(ent.AcDbLine._GEOM[1]['21']) +(this.inserter_def ? this.inserter_def.y :0) - (referer ? 0 : this.cfg.clip_min_y) ) , 'y')
, src = '<line id="'+ iid +'" class="pen1 l_'+layid+'" x1="'+x1+'" y1="'+y1+'" x2="'+x2+'" y2="'+y2+'"'
+' data-drawer="LINE"'
+(referer ? ' data_referer="'+referer+'"' : '')
+(this.inserter_def ? ' data-inserter="'+this.inserter_def.id+'"' : '')
+'/>'
, gpar = lg && lg.g || parent
;
if (lg) {
this.layer_groups[layer].src.push(src);
}
if (gpar) {
var s = gpar.ownerDocument.createElementNS(svgNS,'line');
s.setAttribute('data-drawer','LINE');
s.setAttribute('x1',x1);
s.setAttribute('x2',x2);
s.setAttribute('y1',y1);
s.setAttribute('y2',y2);
s.setAttribute('class',"pen1 l_"+layid);
s.setAttribute('id',iid);
if (referer) {
s.setAttribute('data-referef',referer);
}
if (this.inserter_def) {
s.setAttribute('data-inserter',this.inserter_def.id);
}
gpar.appendChild(s);
}
return src;
}
, POLYLINE : function(ent, parent, referer) { //TODO from subsequent VERTEX-es
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDb2dPolyline', t:['_GEOM',70] } //, t:[10,20,30,70] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + "pl_"+id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, pline_flag = ent.AcDb2dPolyline['70']
, closed = pline_flag && (pline_flag & 1)
, Plinegen = pline_flag && (pline_flag & 128)
, gpar = lg && lg.g || parent
;
this.polyline_def = {
id : iid
, pline_flag : pline_flag
, closed : closed
, Plinegen : Plinegen
, x : this.rounder( parseFloat(ent.AcDb2dPolyline._GEOM[0]['10']) +(this.inserter_def ? this.inserter_def.x :0) - (referer ? 0 : this.cfg.clip_min_x) , 'x')
, y : this.rounder( - ( parseFloat(ent.AcDb2dPolyline._GEOM[0]['20']) +(this.inserter_def ? this.inserter_def.y :0) - (referer ? 0 : this.cfg.clip_min_y) ) , 'y')
// , z : this.rounder( - ( parseFloat(ent.AcDb2dPolyline._GEOM[0]['30']) +(this.inserter_def ? this.inserter_def.z :0) - (referer ? 0 : this.cfg.clip_min_z) ) )
, referer : referer
, layer : layer
, layid : layid
, lg : lg
, gpar : gpar
, vertexes : []
};
return '';
}
, VERTEX : function(ent, parent, referer) {
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDb2dVertex', t:['_GEOM'] } //, t:[10,20,42] }
]);
var id = '_'+ent.AcDbEntity['5']
, iid = (this.polyline_def ? this.polyline_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, x = this.rounder( parseFloat(ent.AcDb2dVertex._GEOM[0]['10']) +(this.polyline_def ? this.polyline_def.x :0) - (referer ? 0 : this.cfg.clip_min_x) , 'x')
, y = this.rounder( - ( parseFloat(ent.AcDb2dVertex._GEOM[0]['20']) +(this.polyline_def ? this.polyline_def.y :0) - (referer ? 0 : this.cfg.clip_min_y) ) , 'y')
, bulgeA = parseFloat(ent.AcDb2dVertex._GEOM[0]['42'])
, bulge = isNaN(bulgeA) ? 0 : bulgeA
;
this.polyline_def.vertexes.push({
x: x
, y: y
, bulge: bulge
});
return '';
}
// http://www.lee-mac.com/bulgeconversion.html
, _bulgeToArc : function(vrtx1, vrtx2) {
var p1 = { x:vrtx1.x, y:vrtx1.y }
, p2 = { x:vrtx2.x, y:vrtx2.y }
, bulge = vrtx1.bulge
;
/*
;; Bulge to Arc - Lee Mac
;; p1 - start vertex
;; p2 - end vertex
;; b - bulge
;; Returns: (<center> <start angle> <end angle> <radius>)
(defun LM:Bulge->Arc ( p1 p2 b / a c r )
(setq a (* 2 (atan b))
r (/ (distance p1 p2) 2 (sin a))
c (polar p1 (+ (- (/ pi 2) a) (angle p1 p2)) r)
)
(if (minusp b)
(list c (angle c p2) (angle c p1) (abs r))
(list c (angle c p1) (angle c p2) (abs r))
)
)
*/
/* bulge = b = tan( FI / 4 )
angle = FI = 4 * arctan( b )
d = r * sin( FI / 2 )
radius = r = d / sin( FI / 2 )
*/
var angle = 4 * Math.atan(bulge)
, d = Math.sqrt( (p2.x - p1.x)*(p2.x - p1.x) + (p2.y - p1.y)*(p2.y - p1.y) )
, r = d / 2 / Math.sin( angle / 2 )
, smer = (bulge < 0) ? 1 : 0
;
return ' A '+r+','+r+' 0, 0,'+smer+', '+vrtx2.x+','+vrtx2.y+' ';
}
, _polyline_gen : function( def ) {
def = def || this.polyline_def;
var d="";
if (def.closed) {
def.vertexes.push(def.vertexes[0]);
}
for (var i=0; i<def.vertexes.length - 1; i++) {
var vrtx1 = def.vertexes[i]
, vrtx2 = def.vertexes[i+1]
;
if (i==0) {
d+="M "+vrtx1.x+','+vrtx1.y;
}
if (vrtx1.bulge) {
d+= this._bulgeToArc(vrtx1, vrtx2);
} else {
d+= ' L '+vrtx2.x+','+vrtx2.y ;
}
}
var src = '<path id="'+ def.id +'" class="pen1 l_'+def.layid+'" d="'+ d +'"'
+' data-drawer="POLYLINE"'
+(def.referer ? ' data_referer="'+def.referer+'"' : '')
+(this.inserter_def ? ' data-inserter="'+this.inserter_def.id+'"' : '')
+'/>'
;
if (def.lg) {
this.layer_groups[def.layer].src.push(src);
}
if (def.gpar) {
var s = def.gpar.ownerDocument.createElementNS(svgNS,'path');
s.setAttribute('data-drawer','POLYLINE');
s.setAttribute('d',d);
s.setAttribute('class',"pen1 l_"+def.layid);
s.setAttribute('id',def.id);
if (def.referer) {
s.setAttribute('data-referef',def.referer);
}
if (this.inserter_def) {
s.setAttribute('data-inserter',this.inserter_def.id);
}
def.gpar.appendChild(s);
}
return src;
}
, LWPOLYLINE : function(ent, parent, referer) {
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDbPolyline', t:['_GEOM',70,75,90] } //, t:[10,20,70,43,40,41,75,90] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, pline_flag = ent.AcDbPolyline['70']
, closed = pline_flag && (pline_flag & 1)
, Plinegen = pline_flag && (pline_flag & 128)
, constant_width = ent.AcDbPolyline._GEOM[0]['43']
, start_width = ent.AcDbPolyline._GEOM[0]['40']
, end_width = ent.AcDbPolyline._GEOM[0]['41']
, curves_flag = ent.AcDbPolyline['75']
, num_vertices = parseFloat(ent.AcDbPolyline['90'])
, me = this
, gen_path = function() {
var d="", x,y;
for(var i=0; i<num_vertices; i++) {
x = me.rounder( parseFloat(ent.AcDbPolyline._GEOM[i]['10']) +(me.inserter_def ? me.inserter_def.x :0) - (referer ? 0 : me.cfg.clip_min_x) , 'x');
y = me.rounder( - ( parseFloat(ent.AcDbPolyline._GEOM[i]['20']) +(me.inserter_def ? me.inserter_def.y :0) - (referer ? 0 : me.cfg.clip_min_y) ) , 'y');
d+= (i?'L ':'M ')+x+' '+y+' ';
}
return d;
}
, d = gen_path()
, src = '<path id="'+ iid +'" class="pen1 l_'+layid+'" d="'+ d +'"'
+' data-drawer="LWPOLYLINE"'
+(referer ? ' data_referer="'+referer+'"' : '')
+(this.inserter_def ? ' data-inserter="'+this.inserter_def.id+'"' : '')
+'/>'
, gpar = lg && lg.g || parent
;
if (lg) {
this.layer_groups[layer].src.push(src);
}
if (gpar) {
var s = gpar.ownerDocument.createElementNS(svgNS,'path');
s.setAttribute('data-drawer','LWPOLYLINE');
s.setAttribute('d',d);
s.setAttribute('class',"pen1 l_"+layid);
s.setAttribute('id',iid);
if (referer) {
s.setAttribute('data-referef',referer);
}
if (this.inserter_def) {
s.setAttribute('data-inserter',this.inserter_def.id);
}
gpar.appendChild(s);
}
return src;
}
// , TRACE : TODO 4-point polygon
, _gen_arc_path : function(cx,cy,rx,ry,dsa,dea,counterclockwise) {
var start_angle = (360 - dsa) % 360 // 74 ... 286 // 359 ... 1
, end_angle = (360 - dea) % 360 // 87 ... 273 // 62 ... 298
, large = ( (dea < dsa ? 360:0) + dea - dsa) > 180 ? 1 : 0 // 273 - 286 = -13
, r = rx // TODO elliptic arc
, start_point = {
x: this.rounder(cx + r * Math.cos(start_angle * Math.PI/180), 'x')
, y: this.rounder(cy + r * Math.sin(start_angle * Math.PI/180), 'y')
}
, end_point = {
x: this.rounder(cx + r * Math.cos(end_angle * Math.PI/180), 'x')
, y: this.rounder(cy + r * Math.sin(end_angle * Math.PI/180), 'y')
}
;
return 'M '+ start_point.x +' '+ start_point.y
+ ' A '+rx+','+ry+' 0' // For arc assume no x-axis rotation.
// + ( ( (end_angle > start_angle) && (end_angle - start_angle > 180) )
// ? ' 1,0' : ' 0,0' )
// + ( (dea > dsa) ? ' 1,0' : ' 0,0' )
+ ' '+ large +',0'
+ ' '+ end_point.x +','+ end_point.y
;
}
, ARC : function(ent, parent, referer) {
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDbCircle', t:['_GEOM'] } //, t:[10,20,40] }
, { n:'AcDbArc', t:[50,51] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, cx = this.rounder( parseFloat(ent.AcDbCircle._GEOM[0]['10']) +(this.inserter_def ? this.inserter_def.x :0) - (referer ? 0 : this.cfg.clip_min_x) )
, cy = this.rounder( - ( parseFloat(ent.AcDbCircle._GEOM[0]['20']) +(this.inserter_def ? this.inserter_def.y :0) - (referer ? 0 : this.cfg.clip_min_y) ) )
, r = this.rounder( parseFloat(ent.AcDbCircle._GEOM[0]['40']) )
, dsa = parseFloat(ent.AcDbArc['50'])
, dea = parseFloat(ent.AcDbArc['51'])
, d = this._gen_arc_path(cx,cy,r,r,dsa,dea)
, src = '<path id="'+ iid +'" class="pen1 l_'+layid+'" d="'+ d +'"'
+' data-drawer="ARC"'
+(referer ? ' data_referer="'+referer+'"' : '')
+(this.inserter_def ?
' data-inserter="'+this.inserter_def.id+'" transform="'+this.inserter_def.trans+'"'
: '')
+'/>'
, gpar = lg && lg.g || parent
;
if (lg) {
this.layer_groups[layer].src.push(src);
}
if (gpar) {
var s = gpar.ownerDocument.createElementNS(svgNS,'path');
s.setAttribute('data-drawer','ARC');
s.setAttribute('d',d);
s.setAttribute('class',"pen1 l_"+layid);
s.setAttribute('id',iid);
if (referer) {
s.setAttribute('data-referef',referer);
}
if (this.inserter_def) {
s.setAttribute('data-inserter',this.inserter_def.id);
}
gpar.appendChild(s);
}
return src;
}
//, SPLINE : TODO
, SOLID : function(ent, parent, referer) {
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDbTrace', t:['_GEOM'] } //, t:[10,11,12,13,20,21,22,23] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, num_vertices = ent.AcDbTrace._GEOM.length //isDef(ent.AcDbTrace['13']) ? 4 : 3
, me = this
, gen_path = function() {
var d="", x,y;
for(var i=0; i<num_vertices; i++) {
x = me.rounder( parseFloat(ent.AcDbTrace._GEOM[i]['1'+i]) +(me.inserter_def ? me.inserter_def.x :0) - (referer ? 0 : me.cfg.clip_min_x) , 'x');
y = me.rounder( - ( parseFloat(ent.AcDbTrace._GEOM[i]['2'+i]) +(me.inserter_def ? me.inserter_def.y :0) - (referer ? 0 : me.cfg.clip_min_y) ) , 'y');
d+= (i?'L ':'M ')+x+' '+y+' ';
}
return d+' Z';
}
, d = gen_path()
, src = '<path id="'+ iid +'" class="pen1 l_'+layid+'" d="'+ d +'" fill="url(#solidFill)"'
+' data-drawer="SOLID"'
+(referer ? ' data_referer="'+referer+'"' : '')
+(this.inserter_def ? ' data-inserter="'+this.inserter_def.id+'"' : '')
+'/>'
, gpar = lg && lg.g || parent
;
if (lg) {
this.layer_groups[layer].src.push(src);
}
if (gpar) {
var s = gpar.ownerDocument.createElementNS(svgNS,'path');
s.setAttribute('data-drawer','SOLID');
s.setAttribute('d',d);
s.setAttribute('class',"pen1 l_"+layid);
s.setAttribute('id',iid);
s.setAttribute('fill',"url(#solidFill)");
if (referer) {
s.setAttribute('data-referef',referer);
}
if (this.inserter_def) {
s.setAttribute('data-inserter',this.inserter_def.id);
}
gpar.appendChild(s);
}
return src;
}
/* old , HATCH : function(ent, parent, referer) { // provisorium only line edges !
// https://www.autodesk.com/techpubs/autocad/acad2000/dxf/boundary_path_data_dxf_06.htm
ent = this.structureENT(ent,[
{ n:'AcDbEntity', t:[8] }
, { n:'AcDbHatch', t:['_GEOM',70,91,92,93] } //, t:[10,11,20,21,70,72,91,92,93] }
]);
var id = '_'+ent['5']
, iid = (this.inserter_def ? this.inserter_def.id+"_" : "") + id
, layer = ent.AcDbEntity['8']
, lg = this.layer(layer,parent)
, layid = lg ? lg.id : 'plain'
, solid_fill_flag = ent.AcDbHatch['70']
, num_boundaries_loops = parseFloat(ent.AcDbHatch['91'])
, a_boundaries_type = this.ensureArr(ent.AcDbHatch['92'])
, a_boundaries_edges = this.ensureArr(ent.AcDbHatch['93'])
, a_edges_type = this.ensureArr(ent.AcDbHatch['72'])
, me = this
// err: handles
// 1A2F5 "1A911" "2289F" "23A56" "2561B" "25A9B" ... edges = 1
// _3F081 _3F17A _40456C8 _4044DAA
, gen_path_loops = function() {
var d="", dd="" //, bulge
, x,y,iXY = 0+1 // 10.20 index (prvy '10' bod je elevation point)
, x2,y2,iXY2 = 0 // 11.21 index
, i72 = 0 // 72 index (edge type)
;
for(var j=0; j < num_boundaries_loops; j++) {
var edges = parseFloat(a_boundaries_edges[j])
, type = parseFloat(a_boundaries_type[j])
, isPolyline = type & 2 // true = polyline
//, false suppose line edges, independantly on '72'
, add1121 = 0 //isLineLike = false
, firstM = true;
;
i72+= isPolyline ? 1:0;
for(var i=0, dd=""; i < edges; i++) {
x = me.rounder( parseFloat(ent.AcDbHatch._GEOM[iXY+i]['10']) +(me.inserter_def ? me.inserter_def.x :0) - (referer ? 0 : me.cfg.clip_min_x) , 'x');
y = me.rounder( - ( parseFloat(ent.AcDbHatch._GEOM[iXY+i]['20']) +(me.inserter_def ? me.inserter_def.y :0) - (referer ? 0 : me.cfg.clip_min_y) ) , 'y');
if (isPolyline) {
dd+= (firstM ? 'M ':'L ')+x+' '+y+' ';
} else {
var edge_type = parseFloat(a_edges_type[i72]);
switch(edge_type) {
case 1: // line
x2 = me.rounder( parseFloat(ent.AcDbHatch._GEOM[iXY2+add1121]['11']) +(me.inserter_def ? me.inserter_def.x :0) - (referer ? 0 : me.cfg.clip_min_x) );
y2 = me.rounder( - ( parseFloat(ent.AcDbHatch._GEOM[iXY2+add1121]['21']) +(me.inserter_def ? me.inserter_def.y :0) - (referer ? 0 : me.cfg.clip_min_y) ) );
dd+= (firstM ? 'M '+x+' '+y : '')+' L '+x2+' '+y2+' ';
add1121++; //isLineLike = true;
break;
case 2: // circular arc
dd+= (firstM ? 'M ':'L ')+x+' '+y+' '; // ??
break;
case 3: // elliptic arc