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| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <canvas id="myCanvas" width="3840" height="2160" style="border:1px solid #d3d3d3;"> | |
| Your browser does not support the HTML5 canvas tag.</canvas> | |
| <script> | |
| var c = document.getElementById("myCanvas"); | |
| var ctx = c.getContext("2d"); | |
| function random_color(){ | |
| let max = 255 | |
| let a = Math.ceil(Math.random()*max); | |
| let b = Math.ceil(Math.random()*max); | |
| let c = Math.ceil(Math.random()*max); | |
| let d = Math.ceil(Math.random()*100)*.001 | |
| return `rgba(${a}, ${b}, ${c}, ${d})` | |
| let colors = ['blue','red','orange','white','pink'] | |
| return colors[Math.floor(Math.random()*colors.length)] | |
| } | |
| function random_size(min=1,max=300){ | |
| return Math.ceil(Math.random()*max-min) | |
| } | |
| function random_circle(width, height, size,color){ | |
| let x = Math.ceil(Math.random()*width) | |
| let y = Math.ceil(Math.random()*height) | |
| let sk = Math.ceil(Math.random()*100) | |
| ctx.beginPath(); | |
| ctx.moveTo(x+size,y); | |
| ctx.arc(x, y, size, sk, 2 * Math.PI); | |
| //ctx.stroke(); | |
| ctx.fillStyle = color | |
| ctx.fill(); | |
| } | |
| function make_many(total=100000){ | |
| let count = 0 | |
| while(count<total){ | |
| count +=1 | |
| let color = random_color() | |
| let size = random_size() | |
| random_circle(3840, 2160, size,color) | |
| } | |
| } | |
| make_many() | |
| </script> | |
| </body> | |
| </html> |
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