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A-M baby

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Ingy döt Net 2013-04-10 21:29:02 -07:00
parent 764da6cbbb
commit db842d013d
19005 changed files with 197040 additions and 7 deletions
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33
Task/Fractal-tree/JavaScript/fractal-tree.js Normal file
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<html>
<body>
<canvas id="canvas" width="600" height="500"></canvas>
<script type="text/javascript">
var elem = document.getElementById('canvas');
var context = elem.getContext('2d');
context.fillStyle = '#000';
context.lineWidth = 1;
var deg_to_rad = Math.PI / 180.0;
var depth = 9;
function drawLine(x1, y1, x2, y2, brightness){
context.moveTo(x1, y1);
context.lineTo(x2, y2);
}
function drawTree(x1, y1, angle, depth){
if (depth != 0){
var x2 = x1 + (Math.cos(angle * deg_to_rad) * depth * 10.0);
var y2 = y1 + (Math.sin(angle * deg_to_rad) * depth * 10.0);
drawLine(x1, y1, x2, y2, depth);
drawTree(x2, y2, angle - 20, depth - 1);
drawTree(x2, y2, angle + 20, depth - 1);
}
}
context.beginPath();
drawTree(300, 500, -90, depth);
context.closePath();
context.stroke();
</script>
</body>
</html>