Circle Gradient with Linear scale
Last active
July 22, 2016 19:13
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Circle Gradient II
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <body> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var margin = 0, | |
| width = 960 - margin, | |
| height = 250 - margin; | |
| var colorRange = ['#d73027', '#e0e0e0', '#4575b4'] | |
| var color = d3.scaleLinear().range(colorRange).domain([-1, 0, 1]); | |
| var svg = d3.select('body') | |
| .append('svg') | |
| .attr("width", width + (margin * 2)) | |
| .attr("height", height + (margin * 2)) | |
| .append("g") | |
| .attr("transform", "translate(" + (margin) + "," + (margin) + ")"); | |
| var radialGradient = svg.append("defs") | |
| .append("radialGradient") | |
| .attr("id", "radial-gradient"); | |
| radialGradient.append("stop") | |
| .attr("offset", "0%") | |
| .attr("stop-color", color(-1)); | |
| radialGradient.append("stop") | |
| .attr("offset", "50%") | |
| .attr("stop-color", color(0)); | |
| radialGradient.append("stop") | |
| .attr("offset", "100%") | |
| .attr("stop-color", color(1)); | |
| svg.append("circle") | |
| .attr("cx", width * 0.5) | |
| .attr("cy", height * 0.5) | |
| .attr("r", height * 0.3) | |
| .style("opacity", 1.0) | |
| .style("fill", "url(#radial-gradient)"); | |
| </script> | |
| </body> |
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