Created
November 6, 2012 12:14
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HTML5 Bezier experiment
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| <html> | |
| <head> | |
| <script type="application/javascript"> | |
| var _context = null; | |
| var _counter = 0; | |
| var _maxIterations = 15; | |
| var _current_x_position = 0; | |
| var _current_y_position = 384; | |
| function draw() { | |
| var canvas = document.getElementById('canvas'); | |
| if (canvas.getContext) { | |
| _context = canvas.getContext("2d"); | |
| setInterval(drawBezierCurve, 900); | |
| } | |
| } | |
| function drawBezierCurve() { | |
| if (_counter > _maxIterations) return; | |
| var widthToAdd = 50; | |
| var randomizedNumber = Math.random() * 350; | |
| var negativize = Math.random() <= 0.5; | |
| if (negativize) randomizedNumber *= -1; | |
| _context.beginPath(); | |
| _context.moveTo(_current_x_position, _current_y_position); | |
| _context.bezierCurveTo(_current_x_position - randomizedNumber, _current_y_position + randomizedNumber, | |
| _current_x_position + randomizedNumber, _current_y_position - randomizedNumber, | |
| _current_x_position + widthToAdd, _current_y_position); | |
| _context.stroke(); | |
| _current_x_position += widthToAdd; | |
| _counter++; | |
| } | |
| </script> | |
| </head> | |
| <body onload="draw();"> | |
| <canvas id="canvas" width="1024" height="768" style="padding-left: 20px;"></canvas> | |
| </body> | |
| </html> |
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