Created
November 6, 2013 13:07
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset=utf-8 /> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <canvas id="canvas" width="480" height="340"></canvas> | |
| </body> | |
| </html> |
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| var canvas = document.getElementById("canvas"); | |
| var ctx = canvas.getContext("2d"); | |
| var width = 480; | |
| var height = 340; | |
| var lines = 1000; | |
| var red = 255; | |
| var green = 255; | |
| var blue = 255; | |
| var opaque = 255; | |
| var drawRondomLine = function(){ | |
| var begin_x = Math.floor(Math.random() * width); | |
| var begin_y = Math.floor(Math.random() * height); | |
| var end_x = Math.floor(Math.random() * width); | |
| var end_y = Math.floor(Math.random() * height); | |
| var r = Math.floor(Math.random() * red); | |
| var g = Math.floor(Math.random() * green); | |
| var b = Math.floor(Math.random() * blue); | |
| var a = Math.floor(Math.random() * opaque); | |
| ctx.strokeStyle = "rgba(" + r + "," + g + "," + b + "," + a + ")"; | |
| ctx.beginPath(); | |
| ctx.moveTo(begin_x, begin_y); | |
| ctx.lineTo(end_x, end_y); | |
| ctx.stroke(); | |
| }; | |
| var draw = function(){ | |
| if(ctx !== null){ | |
| ctx.fillStyle = "black"; | |
| ctx.fillRect(0, 0, width, height); | |
| var i = 0; | |
| while(i < lines){ | |
| drawRondomLine(); | |
| i = i + 1; | |
| } | |
| } | |
| }; | |
| draw(); |
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