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Rainbow Circle
<!DOCTYPE html> <meta charset="utf-8"> <svg width="960" height="960"></svg> <script src="//d3js.org/d3.v3.min.js"></script> <script> var π = Math.PI, τ = 2 * π, n = 500; var width = 960, height = 960, outerRadius = width / 2 - 20, innerRadius = outerRadius - 80; d3.select("svg").append("g") .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")") .selectAll("path") .data(d3.range(0, τ, τ / n)) .enter().append("path") .attr("d", d3.svg.arc() .outerRadius(outerRadius) .innerRadius(innerRadius) .startAngle(function(d) { return d; }) .endAngle(function(d) { return d + τ / n * 1.1; })) .style("fill", function(d) { return d3.hsl(d * 360 / τ, 1, .5); }); d3.select(self.frameElement).style("height", height + "px"); </script>
https://d3js.org/d3.v3.min.js