dc
Version:
A multi-dimensional charting library built to work natively with crossfilter and rendered using d3.js
76 lines (64 loc) • 2.29 kB
HTML
<html lang="en">
<head>
<title>dc.js - Cap and Sort Differently</title>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="../css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="../css/dc.css"/>
</head>
<body>
<div class="container">
<script type="text/javascript" src="header.js"></script>
<div id="test"></div>
<script type="text/javascript" src="../js/promise-polyfill.js"></script>
<script type="text/javascript" src="../js/fetch.umd.js"></script>
<script type="text/javascript" src="../js/d3.js"></script>
<script type="text/javascript" src="../js/crossfilter.js"></script>
<script type="text/javascript" src="../js/dc.js"></script>
<script type="text/javascript">
var chart = dc.pieChart("#test");
d3.csv("morley.csv").then(function(experiments) {
var ndx = crossfilter(experiments),
runDimension = ndx.dimension(function(d) {
return "run-"+String.fromCharCode(90 - +d.Run);})
speedSumGroup = runDimension.group().reduceSum(function(d) {return d.Speed * d.Run;});
var chart = dc.pieChart("#test");
chart
.width(768)
.height(480)
.slicesCap(5)
.innerRadius(100)
.dimension(runDimension)
.group(speedSumGroup)
.legend(dc.legend())
// workaround for #703: not enough data is accessible through .label() to display percentages
.on('pretransition', function(chart) {
chart.selectAll('text.pie-slice').text(function(d) {
return d.data.key + ' ' + dc.utils.printSingleValue((d.endAngle - d.startAngle) / (2*Math.PI) * 100) + '%';
})
});
chart.data(function(group) {
var items = group.all(), rest;
items = chart._computeOrderedGroups(items); // sort by baseMixin.ordering
if (chart.cap()) {
if (chart.takeFront()) {
rest = items.slice(chart.cap());
items = items.slice(0, chart.cap());
} else {
var start = Math.max(0, items.length - chart.cap());
rest = items.slice(0, start);
items = items.slice(start);
}
}
items.sort((a,b) => d3.ascending(a.key, b.key));
if (chart.othersGrouper()) {
return chart.othersGrouper()(items, rest);
}
return items;
})
chart.render();
});
</script>
</div>
</body>
</html>