paper.js/examples/Tools/MultiLines.html

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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Example</title>
<script type="text/javascript" src="../../lib/Bootstrap.js"></script>
<script type="text/javascript" src="../../src/Paper.js"></script>
<script type="text/javascript" src="../../src/tool/ToolEvent.js"></script>
<script type="text/javascript" src="../../src/tool/ToolHandler.js"></script>
<script type="text/javascript" src="../../src/tool/Tool.js"></script>
<script type="text/javascript" src="../../src/basic/Point.js"></script>
<script type="text/javascript" src="../../src/basic/Rectangle.js"></script>
<script type="text/javascript" src="../../src/basic/Size.js"></script>
<script type="text/javascript" src="../../src/basic/Matrix.js"></script>
<script type="text/javascript" src="../../src/document/DocumentView.js"></script>
<script type="text/javascript" src="../../src/document/Doc.js"></script>
<script type="text/javascript" src="../../src/document/Symbol.js"></script>
<script type="text/javascript" src="../../src/item/Item.js"></script>
<script type="text/javascript" src="../../src/item/PlacedSymbol.js"></script>
<script type="text/javascript" src="../../src/item/Group.js"></script>
<script type="text/javascript" src="../../src/item/Layer.js"></script>
<script type="text/javascript" src="../../src/item/Raster.js"></script>
<script type="text/javascript" src="../../src/item/PathStyle.js"></script>
<script type="text/javascript" src="../../src/path/Segment.js"></script>
<script type="text/javascript" src="../../src/path/PathItem.js"></script>
<script type="text/javascript" src="../../src/path/Path.js"></script>
<script type="text/javascript" src="../../src/path/CompoundPath.js"></script>
<script type="text/javascript" src="../../src/path/Path.Constructors.js"></script>
<script type="text/javascript" src="../../src/color/Color.js"></script>
<script type="text/javascript" src="../../src/color/RGBColor.js"></script>
<script type="text/javascript" src="../../src/color/GrayColor.js"></script>
<script type="text/javascript" src="../../src/color/GradientColor.js"></script>
<script type="text/javascript" src="../../src/color/Gradient.js"></script>
<script type="text/javascript" src="../../src/color/GradientStop.js"></script>
<script>
window.onload = function() {
var canvas = document.getElementById('canvas');
var doc = new Doc(canvas);
var values = {
lines: 5,
size: 40,
smooth: true
};
var paths;
var tool = new Tool({
onMouseDown: function(event) {
paths = [];
for (var i = 0; i < values.lines; i++) {
var path = new Path();
path.strokeColor = '#000000';
paths.push(path);
}
},
onMouseDrag: function(event) {
var offset = event.delta;
offset.angle = offset.angle + 90;
var lineSize = values.size / values.lines;
for (var i = 0; i < values.lines; i++) {
var path = paths[values.lines - 1 - i];
offset.length = lineSize * i + lineSize / 2;
path.add(event.middlePoint.add(offset));
path.smooth();
}
}
});
tool.fixedDistance = 30;
}
</script>
</head>
<body>
<canvas id='canvas' width=1024 height=768></canvas>
</body>