mirror of
https://github.com/Hopiu/fabric.js.git
synced 2026-03-26 10:40:30 +00:00
79 lines
2.5 KiB
HTML
79 lines
2.5 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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<title>Opacity & mouse move — Fabric.js demos</title>
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<script src="../../dist/all.js"></script>
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<style>
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.canvas-container { border: 1px solid #ccc; display: inline-block; vertical-align: top; }
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h2 span { font-weight: normal; }
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pre { background: #eef; display: inline-block; padding-right: 15px; margin-left: 15px }
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</style>
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<link rel="stylesheet" href="../../lib/master.css" type="text/css">
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</head>
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<body>
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<ul id="header">
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<li><a href="../index.html">Demos</a></li>
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<li><a href="../../benchmarks/index.html">Benchmarks</a></li>
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<li><a href="../../docs/index.html">Docs</a></li>
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<li><a href="../../test/unit/suite_runner.html">Tests</a></li>
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</ul>
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<div id="bd-wrapper">
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<h2><span>Fabric.js demos</span> · Opacity & mouse move</h2>
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<canvas id="c" width="600" height="500"></canvas>
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<script>
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var getRandomInt = fabric.util.getRandomInt;
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function pad(s) {
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return s.length === 1 ? ('0' + s) : s;
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}
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function getRandomColor() {
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return '#' + pad(getRandomInt(0, 255).toString(16)) +
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pad(getRandomInt(0, 255).toString(16)) +
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pad(getRandomInt(0, 255).toString(16));
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}
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</script>
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<script id="main">
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var canvas = new fabric.Canvas('c');
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fabric.loadSVGFromURL('../kitchensink/assets/135.svg', function(objects) {
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var obj = objects[0].scale(0.25);
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canvas.centerObjectH(obj).centerObjectV(obj);
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canvas.add(obj);
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canvas.add(obj.clone().set({ left: 100, top: 100, angle: -15 }));
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canvas.add(obj.clone().set({ left: 480, top: 100, angle: 15 }));
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canvas.add(obj.clone().set({ left: 100, top: 400, angle: -15 }));
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canvas.add(obj.clone().set({ left: 480, top: 400, angle: 15 }));
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canvas.observe('mouse:move', function(e) {
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var p = canvas.getPointer(e.memo.e);
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canvas.forEachObject(function(obj) {
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var distX = Math.abs(p.x - obj.left),
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distY = Math.abs(p.y - obj.top),
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dist = Math.round(Math.sqrt(Math.pow(distX, 2) + Math.pow(distY, 2)));
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obj.setOpacity(1 / (dist / 20));
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});
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canvas.renderAll();
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});
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});
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</script>
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<script>
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(function(){
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var preEl = document.createElement('pre');
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preEl.innerHTML = document.getElementById('main').innerHTML;
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document.getElementById('bd-wrapper').appendChild(preEl);
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})();
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</script>
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</div>
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</body>
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</html>
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