mirror of
https://github.com/scratchfoundation/paper.js.git
synced 2025-01-03 19:45:44 -05:00
113 lines
No EOL
4.4 KiB
HTML
113 lines
No EOL
4.4 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>Example</title>
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<script type="text/javascript" src="../../lib/bootstrap.js"></script>
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<script type="text/javascript" src="../../lib/parse-js.js"></script>
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<script type="text/javascript" src="../../src/Paper.js"></script>
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<script type="text/javascript" src="../../src/tool/ToolEvent.js"></script>
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<script type="text/javascript" src="../../src/tool/ToolHandler.js"></script>
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<script type="text/javascript" src="../../src/tool/Tool.js"></script>
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<script type="text/javascript" src="../../src/basic/Point.js"></script>
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<script type="text/javascript" src="../../src/basic/Rectangle.js"></script>
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<script type="text/javascript" src="../../src/basic/Size.js"></script>
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<script type="text/javascript" src="../../src/basic/Matrix.js"></script>
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<script type="text/javascript" src="../../src/document/DocumentView.js"></script>
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<script type="text/javascript" src="../../src/document/Document.js"></script>
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<script type="text/javascript" src="../../src/document/Symbol.js"></script>
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<script type="text/javascript" src="../../src/item/Item.js"></script>
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<script type="text/javascript" src="../../src/item/PlacedSymbol.js"></script>
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<script type="text/javascript" src="../../src/item/Group.js"></script>
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<script type="text/javascript" src="../../src/item/Layer.js"></script>
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<script type="text/javascript" src="../../src/item/Raster.js"></script>
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<script type="text/javascript" src="../../src/item/PathStyle.js"></script>
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<script type="text/javascript" src="../../src/path/Segment.js"></script>
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<script type="text/javascript" src="../../src/path/PathItem.js"></script>
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<script type="text/javascript" src="../../src/path/Path.js"></script>
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<script type="text/javascript" src="../../src/path/CompoundPath.js"></script>
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<script type="text/javascript" src="../../src/path/Path.Constructors.js"></script>
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<script type="text/javascript" src="../../src/color/Color.js"></script>
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<script type="text/javascript" src="../../src/color/RGBColor.js"></script>
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<script type="text/javascript" src="../../src/color/GrayColor.js"></script>
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<script type="text/javascript" src="../../src/color/GradientColor.js"></script>
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<script type="text/javascript" src="../../src/color/Gradient.js"></script>
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<script type="text/javascript" src="../../src/color/GradientStop.js"></script>
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<script type="text/javascript" src="../../src/util/BlendMode.js"></script>
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<script type="text/javascript" src="../../src/util/CanvasProvider.js"></script>
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<script type="text/javascript" src="../../src/util/Events.js"></script>
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<script type="text/javascript" src="../../src/util/PaperScript.js"></script>
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<script type="text/paperscript" canvas="canvas">
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////////////////////////////////////////////////////////////////////////////////
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// This script belongs to the following tutorial:
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//
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// http://scriptographer.org/tutorials/geometry/working-with-mouse-vectors/#adding-brush-stroke-ends
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tool.fixedDistance = 80;
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var path;
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var strokeEnds = 6;
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function onMouseDown(event) {
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path = new Path();
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path.fillColor = event.count % 2 ? 'red' : 'black';
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}
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var lastPoint;
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function onMouseDrag(event) {
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// If this is the first drag event,
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// add the strokes at the start:
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if (event.count == 1) {
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addStrokes(event.middlePoint, event.delta * -1);
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} else {
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var step = event.delta / 2;
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step.angle += 90;
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// The top point: the middle point + the step rotated by 90 degrees:
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// -----*
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// |
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// ------
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var top = event.middlePoint + step;
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// The bottom point: the middle point - the step rotated by 90 degrees:
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// ------
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// |
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// -----*
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var bottom = event.middlePoint - step;
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path.add(top);
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path.insert(0, bottom);
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}
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path.smooth();
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lastPoint = event.middlePoint;
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}
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function onMouseUp(event) {
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var delta = event.point - lastPoint;
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delta.length = tool.maxDistance;
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addStrokes(event.point, delta);
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path.closed = true;
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path.smooth();
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}
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function addStrokes(point, delta) {
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var step = delta.rotate(90);
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var strokePoints = strokeEnds * 2 + 1;
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point -= step / 2;
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step /= strokePoints - 1;
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for (var i = 0; i < strokePoints; i++) {
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var strokePoint = point + step * i;
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var offset = delta * (Math.random() * 0.3 + 0.1);
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if (i % 2) {
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offset *= -1;
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}
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strokePoint += offset;
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path.insert(0, strokePoint);
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}
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}
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</script>
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</head>
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<body>
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<canvas id='canvas' width=1024 height=768></canvas>
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</body> |