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Last active November 11, 2015 09:36
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13-Extending Arcs
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README.md
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index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
path {
fill: #ccc;
stroke: #333;
stroke-width: 1.5px;
transition: fill 250ms linear;
transition-delay: 150ms;
}
path:hover {
fill: #999;
stroke: #000;
transition-delay: 0;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var data = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89];
var width = 960,
height = 500;
var outerRadius = height / 2 - 20,
innerRadius = outerRadius / 3,
cornerRadius = 10;
var pie = d3.layout.pie()
.padAngle(.02);
var arc = d3.svg.arc()
.padRadius(outerRadius)
.innerRadius(innerRadius);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
svg.selectAll("path")
.data(pie(data))
.enter().append("path")
.each(function(d) { d.outerRadius = outerRadius - 20; })
.attr("d", function(d) { return arc(d) })
.on("mouseover", arcTween(outerRadius, 0))
.on("mouseout", arcTween(outerRadius - 20, 150));
function arcTween(outerRadius, delay) {
return function() {
d3.select(this).transition().delay(delay).attrTween("d", function(d) {
console.log(d.outerRadius + ", " + outerRadius);
var i = d3.interpolate(d.outerRadius, outerRadius);
console.log(i);
return function(t) { d.outerRadius = i(t); return arc(d); };
});
};
}
</script>
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