127 lines
4.0 KiB
HTML
127 lines
4.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<script src="imagetracer_v1.2.6.js"></script>
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<script src="simplify.js"></script>
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<script>
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function onload_init(){
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var options = { ltres:0.1, qtres:1, scale:4, strokewidth:4 };
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// This will load an image, trace it when loaded, and execute callback on the tracedata
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ImageTracer.imageToTracedata(
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'panda.png',
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function(tracedata){
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// Counting total original points; copying and simplifying points in newpointscontainer
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var pointcnt = 0, newpointscontainer = [];
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// layers loop
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for(var i=0; i<tracedata.layers.length; i++){
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newpointscontainer[i] = [];
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// paths loop
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for(var j=0; j<tracedata.layers[i].length; j++){
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newpointscontainer[i][j] = [];
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// register first point
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newpointscontainer[i][j].push({x: tracedata.layers[i][j].segments[0].x1, y: tracedata.layers[i][j].segments[0].y1 });
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// segments loop
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for(var k=0; k<tracedata.layers[i][j].segments.length; k++){
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// register next point
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newpointscontainer[i][j].push({x: tracedata.layers[i][j].segments[k].x2, y: tracedata.layers[i][j].segments[k].y2 });
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pointcnt++;
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if(tracedata.layers[i][j].segments[k].hasOwnProperty('x3')){
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// register next point
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newpointscontainer[i][j].push({x: tracedata.layers[i][j].segments[k].x3, y: tracedata.layers[i][j].segments[k].y3 });
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pointcnt++;
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}// End of x3 check
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}// End of segments loop
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// simplify with tolerance = 2 ; highQuality = true
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newpointscontainer[i][j] = simplify(newpointscontainer[i][j], 2, true);
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}// End of paths loop
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}// End of layers loop
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// log original SVG stats
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document.getElementById('log').innerHTML += 'Original point count: '+pointcnt+'<br/>';
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// display original SVG
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ImageTracer.appendSVGString( ImageTracer.getsvgstring(tracedata,options), 'svgcontainer' );
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// Copying the new, simplified points back to tracedata
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// As we don't know how and which segment is affected,
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// whether quadratic spline controlpoints or endpoints were deleted,
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// we will just assume everything is linear, no quadratic splines will be used
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pointcnt = 0;
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// layers loop
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for(var i=0; i<tracedata.layers.length; i++){
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// paths loop
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for(var j=0; j<tracedata.layers[i].length; j++){
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// reset this path segments
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tracedata.layers[i][j].segments = [];
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// count new points
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pointcnt += newpointscontainer[i][j].length;
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// segments loop
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for(var k=0; k<newpointscontainer[i][j].length; k++){
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// create new segments from new points
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tracedata.layers[i][j].segments.push(
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{
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type:'L',
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x1: newpointscontainer[i][j][k].x,
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y1: newpointscontainer[i][j][k].y,
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x2: newpointscontainer[i][j][(k+1)%newpointscontainer[i][j].length].x,
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y2: newpointscontainer[i][j][(k+1)%newpointscontainer[i][j].length].y
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}
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);
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}// End of segments loop
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if(j===0){ console.log(JSON.stringify(tracedata.layers[i][j].segments)); }
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}// End of paths loop
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}// End of layers loop
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// log new SVG stats
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document.getElementById('log').innerHTML += 'New point count: '+pointcnt+'<br/>';
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// display new SVG
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ImageTracer.appendSVGString( ImageTracer.getsvgstring(tracedata,options), 'svgcontainer' );
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},// End of imageToTracedata() callback
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options // for tracing
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);// End of imageToTracedata()
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}// End of onload_init()
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</script>
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</head>
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<body style="background-color:rgb(32,32,32);color:rgb(255,255,255);font-family:monospace;" onload="onload_init()" >
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<noscript style="background-color:rgb(255,0,0);color:rgb(255,255,255);font-size: 250%;">Please enable JavaScript!</noscript>
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<div id="svgcontainer"></div> <div id="log"></div>
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</body>
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</html>
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