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Circular Layout (Raindrops)
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> | |
| <title>Raindrops</title> | |
| <script type="text/javascript" src="https://github.com/mbostock/d3/raw/v1.4.0/d3.js"></script> | |
| <style type="text/css"> | |
| body { | |
| background: #012; | |
| } | |
| path { | |
| stroke: #fff; | |
| stroke-opacity: .5; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| var w = 960, | |
| h = 500; | |
| var svg = d3.select("body") | |
| .append("svg:svg") | |
| .attr("width", w) | |
| .attr("height", h) | |
| .append("svg:g") | |
| .attr("transform", "translate(" + w / 2 + "," + h / 2 + ")"); | |
| var gradient = svg.append("svg:defs") | |
| .append("svg:linearGradient") | |
| .attr("id", "gradient") | |
| .attr("x1", "0%") | |
| .attr("y1", "20%") | |
| .attr("x2", "20%") | |
| .attr("y2", "100%"); | |
| gradient.append("svg:stop") | |
| .attr("offset", "20%") | |
| .attr("stop-color", "#ccf"); | |
| gradient.append("svg:stop") | |
| .attr("offset", "50%") | |
| .attr("stop-color", "#1C425C"); | |
| gradient.append("svg:stop") | |
| .attr("offset", "100%") | |
| .attr("stop-color", "#19162B"); | |
| // could use transparent gradient overlay to vary raindrop color | |
| svg.selectAll("path") | |
| .data(d3.range(0, 358, 1)) | |
| .enter().append("svg:path") | |
| .attr("fill", "url(#gradient)") | |
| .attr("d", function() { return raindrop(10 + Math.random() * 200); }) | |
| .attr("transform", function(d) { | |
| return "rotate(" + d + ")" | |
| + "translate(" + (h / 4 + Math.random() * h / 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> | |
| </body> | |
| </html> |
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