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Update doughnut sample to support adding and removing datasets

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Evert Timberg
2015-06-16 22:12:59 -04:00
parent f2298aed77
commit fd7a4e9bd7
1 changed files with 19 additions and 1 deletions
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20
samples/doughnut.html
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@@ -18,10 +18,12 @@
</head>
<body>
<div id="canvas-holder" style="width:100%">
<div id="canvas-holder" style="width:50%">
<canvas id="chart-area" width="500" height="500" />
</div>
<button id="randomizeData">Randomize Data</button>
<button id="addDataset">Add Dataset</button>
<button id="removeDataset">Remove Dataset</button>
<script>
var randomScalingFactor = function() {
return Math.round(Math.random() * 100);
@@ -29,6 +31,9 @@
var randomColorFactor = function() {
return Math.round(Math.random() * 255);
};
var randomColor = function(opacity) {
return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';
};
var config = {
type: 'doughnut',
@@ -106,6 +111,19 @@
});
window.myDoughnut.update();
});
$('#addDataset').click(function() {
var newDataset = {
backgroundColor: [randomColor(0.7), randomColor(0.7), randomColor(0.7), randomColor(0.7), randomColor(0.7)],
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
};
window.myDoughnut.addDataset(newDataset);
});
$('#removeDataset').click(function() {
window.myDoughnut.removeDataset(0);
});
</script>
</body>