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Circular Layout (Raindrops)
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <title>Raindrops</title> | |
| <style> | |
| body { | |
| background: #012; | |
| } | |
| path { | |
| stroke: #fff; | |
| stroke-opacity: .5; | |
| } | |
| </style> | |
| <body> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| var gradient = svg.append("defs").append("linearGradient") | |
| .attr("id", "gradient") | |
| .attr("x1", "0%") | |
| .attr("y1", "20%") | |
| .attr("x2", "20%") | |
| .attr("y2", "100%"); | |
| gradient.append("stop") | |
| .attr("offset", "20%") | |
| .attr("stop-color", "#ccf"); | |
| gradient.append("stop") | |
| .attr("offset", "50%") | |
| .attr("stop-color", "#1C425C"); | |
| gradient.append("stop") | |
| .attr("offset", "100%") | |
| .attr("stop-color", "#19162B"); | |
| // could use transparent gradient overlay to vary raindrop color | |
| svg.selectAll("path") | |
| .data(d3.range(358)) | |
| .enter().append("path") | |
| .attr("fill", "url(#gradient)") | |
| .attr("d", function() { return raindrop(10 + Math.random() * 200); }) | |
| .attr("transform", function(d) { | |
| return "rotate(" + d + ")" | |
| + "translate(" + (height / 4 + Math.random() * height / 6) + ",0)" | |
| + "rotate(90)"; | |
| }); | |
| // size is linearly proportional to square pixels (not exact, yet) | |
| function raindrop(size) { | |
| var r = Math.sqrt(size / Math.PI); | |
| return "M" + r + ",0" | |
| + "A" + r + "," + r + " 0 1,1 " + -r + ",0" | |
| + "C" + -r + "," + -r + " 0," + -r + " 0," + -3*r | |
| + "C0," + -r + " " + r + "," + -r + " " + r + ",0" | |
| + "Z"; | |
| } | |
| </script> |
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