chart.js
Version:
Simple HTML5 charts using the canvas element.
108 lines (102 loc) • 3.51 kB
HTML
<html>
<head>
<title>Scatter Chart</title>
<script src="../../../dist/Chart.bundle.js"></script>
<script src="../../utils.js"></script>
<style>
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
</style>
</head>
<body>
<div style="width:75%">
<canvas id="canvas"></canvas>
</div>
<button id="randomizeData">Randomize Data</button>
<script>
var color = Chart.helpers.color;
var scatterChartData = {
datasets: [{
label: "My First dataset",
borderColor: window.chartColors.red,
backgroundColor: color(window.chartColors.red).alpha(0.2).rgbString(),
data: [{
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}]
}, {
label: "My Second dataset",
borderColor: window.chartColors.blue,
backgroundColor: color(window.chartColors.blue).alpha(0.2).rgbString(),
data: [{
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}, {
x: randomScalingFactor(),
y: randomScalingFactor(),
}]
}]
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myScatter = Chart.Scatter(ctx, {
data: scatterChartData,
options: {
title: {
display: true,
text: 'Chart.js Scatter Chart'
},
}
});
};
document.getElementById('randomizeData').addEventListener('click', function() {
scatterChartData.datasets.forEach(function(dataset) {
dataset.data = dataset.data.map(function() {
return {
x: randomScalingFactor(),
y: randomScalingFactor()
};
});
});
window.myScatter.update();
});
</script>
</body>
</html>