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aaizemberg/index.html

Last active May 14, 2019 13:19
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Dibujando 30.000 círculos con <canvas>
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>30.000 círculos</title>
</head>
<body>
<canvas id="myCanvas" width="960" height="500" style="border:1px solid #000;"></canvas>
<script>
function rc() {
return (Math.random() * 256);
}
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
for (i = 0; i < 30000; i++) {
ctx.beginPath();
ctx.arc(c.width * Math.random(),
c.height * Math.random(),
10 * Math.random(),
0,
2 * Math.PI);
ctx.fillStyle = 'rgba('+rc()+', '+rc()+', '+rc()+', 0.5)';
ctx.fill();
}
</script>
</body>
</html>
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