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@lindep

lindep/README.md

Last active February 25, 2016 05:22
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arc
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index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
svg { width: 100%; height: 100%; }
</style>
</head>
<body>
<script>
var margin = {top: 20, right: 10, bottom: 20, left: 17};
var width = 960 - margin.left - margin.right;
var height = 500 - margin.top - margin.bottom;
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom);
svg.append("g")
.attr("class","myclass")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var x=129,y=157;
var rad=137;
var angle=72;
var arc=d3.svg.arc()
.innerRadius(0)
.outerRadius(rad)
.startAngle((angle-22)*(Math.PI/180))
.endAngle((angle+22)*(Math.PI/180));
console.log(arc.centroid());
d3.selectAll('g.myclass')
.append('g')
.append('svg:path')
.attr('d',arc)
.attr("transform", "translate("+x+","+y+")")
.attr('fill','red')
.attr('strokeWidth',1);
</script>
</body>
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