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Last active August 2, 2017 11:23
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Radial area generator
license: gpl-3.0
height: 210
border: no
<!DOCTYPE html>
<meta charset="utf-8">
<head>
<title>Radial area generator</title>
</head>
<style>
path {
fill: #ddd;
}
</style>
<body>
<svg width="700" height="200">
<g transform="translate(100,100)"></g>
</svg>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script>
<script>
var radialAreaGenerator = d3.radialArea()
.angle(function(d) {
return d.angle;
})
.innerRadius(function(d) {
return d.r0;
})
.outerRadius(function(d) {
return d.r1;
});
var points = [
{angle: 0, r0: 20, r1: 80},
{angle: Math.PI * 0.25, r0: 20, r1: 40},
{angle: Math.PI * 0.5, r0: 20, r1: 80},
{angle: Math.PI * 0.75, r0: 20, r1: 40},
{angle: Math.PI, r0: 20, r1: 80},
{angle: Math.PI * 1.25, r0: 20, r1: 40},
{angle: Math.PI * 1.5, r0: 20, r1: 80},
{angle: Math.PI * 1.75, r0: 20, r1: 40},
{angle: Math.PI * 2, r0: 20, r1: 80}
];
var pathData = radialAreaGenerator(points);
// Create a path element and set its d attribute
d3.select('g')
.append('path')
.attr('d', pathData);
</script>
</body>
</html>
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