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January 15, 2018 05:38
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Linear Gradient Rotation
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <body> | |
| <span class="leftlabel">0</span> | |
| <input id="range1" type="range" min="0" max="90" value="0" style="width: 300px; margin-right: 10px;" /> | |
| <span class="rightlabel">100</span> <br/><br /> | |
| <script> | |
| var margin = 20, | |
| width = 320 - margin, | |
| height = 320 - margin; | |
| var colorRange = ['#EFA08D', '#F0BC89', '#F0DB84', '#E5F17F', '#C0F17A', '#70F272', '#6BF297', '#61F3E9'] | |
| var color = d3.scaleLinear().range(colorRange).domain([1, 2, 3, 4, 5, 6, 7, 8]); | |
| 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 linearGradient = svg.append("defs") | |
| .append("linearGradient") | |
| .attr("id", "linear-gradient"); | |
| linearGradient.append("stop") | |
| .attr("offset", "0%") | |
| .attr("stop-color", color(1)); | |
| linearGradient.append("stop") | |
| .attr("offset", "14.28%") | |
| .attr("stop-color", color(2)); | |
| linearGradient.append("stop") | |
| .attr("offset", "28.57%") | |
| .attr("stop-color", color(3)); | |
| linearGradient.append("stop") | |
| .attr("offset", "42.85%") | |
| .attr("stop-color", color(4)); | |
| linearGradient.append("stop") | |
| .attr("offset", "57.14%") | |
| .attr("stop-color", color(5)); | |
| linearGradient.append("stop") | |
| .attr("offset", "71.42%") | |
| .attr("stop-color", color(6)); | |
| linearGradient.append("stop") | |
| .attr("offset", "85.71%") | |
| .attr("stop-color", color(7)); | |
| linearGradient.append("stop") | |
| .attr("offset", "100%") | |
| .attr("stop-color", color(8)); | |
| svg.append("rect") | |
| .attr("x", 0) | |
| .attr("y", 0) | |
| .attr("width", width) | |
| .attr("height", height) | |
| .style("stroke", "black") | |
| .style("stroke-width", 2) | |
| .style("fill", "url(#linear-gradient)"); | |
| d3.select("#range1").on("input", function () { | |
| svg.selectAll('#linear-gradient') | |
| .transition() | |
| .duration(1000) | |
| .ease(d3.easeLinear) | |
| .attr("gradientTransform", "rotate(" + d3.select("#range1").property("value")+")"); | |
| }); | |
| </script> | |
| </body> |
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