Created
October 14, 2013 08:31
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D3 Sine Circle
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>D3 Sine Circle</title> | |
</head> | |
<body> | |
<div id="wrapper"> | |
</div> | |
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
<script> | |
var data = d3.range(120).map(function(i) { | |
return .8 + Math.sin(i / 3 * Math.PI) / 6; | |
}); | |
var width = 960, | |
height = 500; | |
var radius = d3.scale.linear() | |
.domain([0, 1]) | |
.range([height / 3, height / 2]); | |
var angle = d3.scale.linear() | |
.domain([0, data.length]) | |
.range([0, 2 * Math.PI]); | |
var line = d3.svg.line.radial() | |
.interpolate("basis-closed") | |
.radius(radius) | |
.angle(function(d, i) { return angle(i); }); | |
var area = d3.svg.area.radial() | |
.interpolate(line.interpolate()) | |
.innerRadius(radius(0)) | |
.outerRadius(line.radius()) | |
.angle(line.angle()); | |
var svg = d3.select("#wrapper").append("svg") | |
.datum(data) | |
.attr("width", width) | |
.attr("height", height) | |
.append("g") | |
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
svg.append("path") | |
.attr("class", "area") | |
.attr("d", area) | |
.style('fill','red') | |
.style('stroke','black') | |
.style('stroke-width',2); | |
</script> | |
</body> | |
</html> |
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