mirror of
https://github.com/chartjs/Chart.js.git
synced 2024-10-06 20:29:12 +02:00
77 lines
2.0 KiB
HTML
77 lines
2.0 KiB
HTML
<!doctype html>
|
|
<html>
|
|
|
|
<head>
|
|
<title>Doughnut Chart</title>
|
|
<script src="../Chart.js"></script>
|
|
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
|
|
<style>
|
|
body {
|
|
padding: 0;
|
|
margin: 0;
|
|
}
|
|
|
|
#canvas-holder {
|
|
width: 30%;
|
|
}
|
|
</style>
|
|
</head>
|
|
|
|
<body>
|
|
<div id="canvas-holder" style="width:100%">
|
|
<canvas id="chart-area" width="500" height="500" />
|
|
</div>
|
|
<button id="randomizeData">Randomize Data</button>
|
|
<script>
|
|
var randomScalingFactor = function() {
|
|
return Math.round(Math.random() * 100)
|
|
};
|
|
var randomColorFactor = function() {
|
|
return Math.round(Math.random() * 255)
|
|
};
|
|
|
|
var doughnutData = {
|
|
data: [{
|
|
value: randomScalingFactor(),
|
|
backgroundColor: "#F7464A",
|
|
label: "Red"
|
|
}, {
|
|
value: randomScalingFactor(),
|
|
backgroundColor: "#46BFBD",
|
|
label: "Green"
|
|
}, {
|
|
value: randomScalingFactor(),
|
|
backgroundColor: "#FDB45C",
|
|
label: "Yellow"
|
|
}, {
|
|
value: randomScalingFactor(),
|
|
backgroundColor: "#949FB1",
|
|
label: "Grey"
|
|
}, {
|
|
value: randomScalingFactor(),
|
|
backgroundColor: "#4D5360",
|
|
label: "Dark Grey"
|
|
}
|
|
|
|
]
|
|
};
|
|
|
|
window.onload = function() {
|
|
var ctx = document.getElementById("chart-area").getContext("2d");
|
|
window.myDoughnut = new Chart(ctx).Doughnut(doughnutData, {
|
|
responsive: true
|
|
});
|
|
};
|
|
|
|
$('#randomizeData').click(function() {
|
|
$.each(doughnutData.data, function(i, datapoint) {
|
|
datapoint.value = randomScalingFactor();
|
|
datapoint.backgroundColor = 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
|
|
});
|
|
window.myDoughnut.update();
|
|
});
|
|
</script>
|
|
</body>
|
|
|
|
</html>
|