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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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September 12, 2018 12:58
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circle overlaps intersection clipping
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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 color0 = d3.scaleLinear() | |
| .domain([0, 1]) | |
| .range(['white', 'red']) | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| svg | |
| .append("circle") | |
| .attr("cy", 150) | |
| .attr("cx", 150) | |
| .attr("r", 150) | |
| .style("fill", "none") | |
| // .style("fill", "red") | |
| // .style("opacity", .1); | |
| svg.append("clipPath") | |
| .attr("id", "circle-clip-1-1") | |
| .append("circle") | |
| .attr("cy", 150) | |
| .attr("cx", 150) | |
| .attr("r", 150) | |
| .style("fill", "red") | |
| .style("opacity", .1); | |
| svg | |
| .append("circle") | |
| .attr("cy", 150) | |
| .attr("cx", 150) | |
| .attr("r", 130) | |
| .style("fill", "none") | |
| .style("opacity", .1); | |
| svg.append("clipPath") | |
| .attr("id", "circle-clip-1-2") | |
| .append("circle") | |
| .attr("cy", 150) | |
| .attr("cx", 150) | |
| .attr("r", 130) | |
| .style("fill", "red") | |
| .style("opacity", .1); | |
| svg | |
| .append("circle") | |
| .attr("cy", 150) | |
| .attr("cx", 150) | |
| .attr("r", 110) | |
| .style("fill", "red") | |
| .style("opacity", .1); | |
| svg.append("clipPath") | |
| .attr("id", "circle-clip-1-3") | |
| .append("circle") | |
| .attr("cy", 150) | |
| .attr("cx", 150) | |
| .attr("r", 110) | |
| .style("fill", "red") | |
| .style("opacity", .1); | |
| // circle 2 | |
| svg | |
| .append("circle") | |
| .attr("cy", 300) | |
| .attr("cx", 250) | |
| .attr("r", 150) | |
| .style("fill", "none") | |
| .style("opacity", .1); | |
| svg.append("clipPath") | |
| .attr("id", "circle-clip-2-1") | |
| .append("circle") | |
| .attr("clip-path","url(#circle-clip-1-1)") | |
| .attr("cy", 300) | |
| .attr("cx", 250) | |
| .attr("r", 150) | |
| .style("fill", "red") | |
| .style("opacity", .1); | |
| svg | |
| .append("circle") | |
| .attr("cy", 300) | |
| .attr("cx", 250) | |
| .attr("r", 130) | |
| .style("fill", "none") | |
| .style("opacity", .1); | |
| svg.append("clipPath") | |
| .attr("id", "circle-clip-2-2") | |
| .append("circle") | |
| .attr("clip-path","url(#circle-clip-1-2)") | |
| .attr("cy", 300) | |
| .attr("cx", 250) | |
| .attr("r", 130) | |
| .style("fill", "red") | |
| .style("opacity", .1); | |
| svg | |
| .append("circle") | |
| .attr("cy", 300) | |
| .attr("cx", 250) | |
| .attr("r", 110) | |
| .style("fill", "red") | |
| .style("opacity", .1); | |
| // circle 3 | |
| //svg.append("circle") | |
| // .attr("cy", 200) | |
| // .attr("cx", 350) | |
| // .attr("r", 150) | |
| // .style("fill", "green") | |
| // .style("opacity", 1); | |
| svg.append("circle") | |
| .attr("clip-path","url(#circle-clip-2-1)") | |
| .attr("cy", 300) | |
| .attr("cx", 250) | |
| .attr("r", 150) | |
| .style("fill", "red") | |
| .style("opacity", 1); | |
| svg.append("circle") | |
| .attr("clip-path","url(#circle-clip-2-2)") | |
| .attr("cy", 300) | |
| .attr("cx", 250) | |
| .attr("r", 150) | |
| .style("fill", "red") | |
| .style("opacity", 1); | |
| </script> | |
| </body> |
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