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forked from romsson's block: detect olverapped SVG elements intersections
forked from romsson's block: clippath olverapped SVG circles intersections
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August 25, 2018 14:47
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multiple clippath olverapped SVG circles intersections
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var n = 4, | |
| s = 100, | |
| r = 50; | |
| function pts(nb) { | |
| var alpha = (2 * Math.PI) / nb, | |
| res = []; | |
| for(var i = 0; i < (2*Math.PI); i += alpha) { | |
| res.push({ | |
| x: Math.cos(i), | |
| y: Math.sin(i) | |
| }); | |
| } | |
| return res; | |
| } | |
| var color = d3.scaleOrdinal(d3.schemeCategory20); | |
| var c = d3.scaleLinear() | |
| .range([0, s]) | |
| .domain([-1, 1]); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| svg.selectAll("circle").data(pts(n)) | |
| .enter() | |
| .append("circle") | |
| .attr("cx", function(d) { return c(d.x); }) | |
| .attr("cy", function(d) { return c(d.y); }) | |
| .attr("r", function(d) { return r; }) | |
| .style("fill", function(d, i) { | |
| return color(i); | |
| }) | |
| .style("stroke", "black") | |
| .attr("transform", "translate(200, 200)") | |
| </script> | |
| </body> |
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