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Created October 4, 2011 17:51
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Bakery
<!DOCTYPE html>
<html>
<head>
<title>Pie Chart</title>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?2.3.0"></script>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?2.3.0"></script>
<style type="text/css">
body {
font: 10px sans-serif;
}
</style>
</head>
<body>
<p style="font-size:12pt;">Click in the box to bake a pie!<p>
<script type="text/javascript">
function bakepie(classname, data, x, y, r)
{
//color could be made a parameter
var color = d3.scale.category10()
var arc = d3.svg.arc().outerRadius(r)
var donut = d3.layout.pie();
var pie = d3.select("#charts")
.append("svg:g")
//.data([data.sort(d3.descending)])
.data([data])
.attr("class", classname);
var arcs = pie.selectAll("g.arc")
.data(donut)
.enter().append("svg:g")
.attr("class", "arc")
.attr("transform", "translate(" + x + "," + y + ")");
var paths = arcs.append("svg:path")
.attr("fill", function(d, i) { return color(i); })
.attr("fill-opacity", .6);
var tweenPie = function (b) {
b.innerRadius = 0;
var i = d3.interpolate({startAngle: 0, endAngle: 0}, b);
return function(t) {
return arc(i(t));
};
}
var tweenDonut = function (b) {
b.innerRadius = r * .6;
var i = d3.interpolate({innerRadius: 0}, b);
return function(t) {
return arc(i(t));
};
}
paths.transition()
.ease("bounce")
.duration(2000)
.attrTween("d", tweenPie);
paths.transition()
.ease("elastic")
.delay(function(d, i) { return 2000 + i * 50; })
.duration(750)
.attrTween("d", tweenDonut);
}
//setup svg canvas
d3.select("body")
.append("svg:svg")
.attr("width", 1000)
.attr("height", 700)
.attr("id", "charts")
.on("click", clickypie)
.append("svg:rect")
.attr("width", "100%")
.attr("height", "100%")
.attr("stroke", "#000")
.attr("stroke-width", 3)
.attr("fill", "none")
count = 0
function clickypie()
{
count += 1;
var xy = d3.svg.mouse(this);
var r = 50 + Math.random() * 100;
var data = d3.range(10).map(Math.random)
bakepie("pie"+count, data, xy[0], xy[1], r);
};
/*
var data = d3.range(10).map(Math.random)
bakepie("pie1", data, 100, 100, 100);
data = d3.range(20).map(Math.random)
bakepie("pie2", data, 200, 200, 150);
data = d3.range(30).map(Math.random)
bakepie("pie3", data, 300, 300, 200);
*/
</script>
</body>
</html>
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