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Uniform Random III
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| license: gpl-3.0 |
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| !function(){function t(t){return function(e,i){e=d3.hsl(e),i=d3.hsl(i);var r=(e.h+120)*a,h=(i.h+120)*a-r,s=e.s,l=i.s-s,o=e.l,u=i.l-o;return isNaN(l)&&(l=0,s=isNaN(s)?i.s:s),isNaN(h)&&(h=0,r=isNaN(r)?i.h:r),function(a){var e=r+h*a,i=Math.pow(o+u*a,t),c=(s+l*a)*i*(1-i);return"#"+n(i+c*(-.14861*Math.cos(e)+1.78277*Math.sin(e)))+n(i+c*(-.29227*Math.cos(e)-.90649*Math.sin(e)))+n(i+c*1.97294*Math.cos(e))}}}function n(t){var n=(t=0>=t?0:t>=1?255:0|255*t).toString(16);return 16>t?"0"+n:n}var a=Math.PI/180;d3.scale.cubehelix=function(){return d3.scale.linear().range([d3.hsl(300,.5,0),d3.hsl(-240,.5,1)]).interpolate(d3.interpolateCubehelix)},d3.interpolateCubehelix=t(1),d3.interpolateCubehelix.gamma=t}(); |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script src="cubehelix.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500; | |
| var sample = uniformRandomSampler(width, height, 10000), | |
| samples = [], | |
| s; | |
| while (s = sample()) samples.push(s); | |
| var voronoi = d3.geom.voronoi() | |
| .clipExtent([[0, 0], [width, height]]); // TODO overdraw | |
| var color = d3.scale.cubehelix() | |
| .domain([0, 200]) | |
| .range([d3.hsl(96, .6, 1), d3.hsl(276, .6, 0)]) | |
| .clamp(true); | |
| d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .selectAll("path") | |
| .data(voronoi(samples)) | |
| .enter().append("path") | |
| .style("fill", function(d) { return color(d3.geom.polygon(d).area()); }) | |
| .attr("d", function(d) { return "M" + d.join("L") + "Z"; }); | |
| function uniformRandomSampler(width, height, numSamplesMax) { | |
| var numSamples = 0; | |
| return function() { | |
| if (++numSamples > numSamplesMax) return; | |
| return [Math.random() * width, Math.random() * height]; | |
| }; | |
| } | |
| </script> |
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