2015-05-23 21:19:30 +02:00
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<!doctype html>
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<html>
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<head>
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2018-02-03 13:28:54 +01:00
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<title>Line Chart Multiple Axes</title>
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2020-05-25 22:54:22 +02:00
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<script src="../../../dist/chart.min.js"></script>
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2018-02-03 13:28:54 +01:00
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<script src="../../utils.js"></script>
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<style>
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canvas {
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-moz-user-select: none;
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-webkit-user-select: none;
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-ms-user-select: none;
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}
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</style>
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2015-05-23 21:19:30 +02:00
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</head>
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<body>
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2018-02-03 13:28:54 +01:00
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<div style="width:75%;">
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<canvas id="canvas"></canvas>
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</div>
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<button id="randomizeData">Randomize Data</button>
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<script>
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var lineChartData = {
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labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
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datasets: [{
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label: 'My First dataset',
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borderColor: window.chartColors.red,
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backgroundColor: window.chartColors.red,
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fill: false,
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data: [
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor()
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],
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2019-11-22 00:46:49 +01:00
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yAxisID: 'y',
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2018-02-03 13:28:54 +01:00
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}, {
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label: 'My Second dataset',
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borderColor: window.chartColors.blue,
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backgroundColor: window.chartColors.blue,
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fill: false,
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data: [
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor(),
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randomScalingFactor()
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],
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2019-11-22 00:46:49 +01:00
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yAxisID: 'y1'
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2018-02-03 13:28:54 +01:00
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}]
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};
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2015-05-23 21:19:30 +02:00
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2018-02-03 13:28:54 +01:00
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window.onload = function() {
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var ctx = document.getElementById('canvas').getContext('2d');
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2019-10-30 23:41:41 +01:00
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window.myLine = new Chart(ctx, {
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type: 'line',
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2018-02-03 13:28:54 +01:00
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data: lineChartData,
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options: {
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responsive: true,
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2020-10-19 13:24:06 +02:00
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interaction: {
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mode: 'index'
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},
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2018-02-03 13:28:54 +01:00
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stacked: false,
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title: {
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display: true,
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text: 'Chart.js Line Chart - Multi Axis'
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},
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scales: {
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2019-11-22 00:46:49 +01:00
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y: {
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2018-02-03 13:28:54 +01:00
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type: 'linear', // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
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display: true,
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position: 'left',
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2019-11-22 00:46:49 +01:00
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},
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y1: {
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2018-02-03 13:28:54 +01:00
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type: 'linear', // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
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display: true,
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position: 'right',
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2015-06-12 22:00:48 +02:00
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2018-02-03 13:28:54 +01:00
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// grid line settings
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gridLines: {
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drawOnChartArea: false, // only want the grid lines for one axis to show up
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},
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2019-11-22 00:46:49 +01:00
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},
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2018-02-03 13:28:54 +01:00
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}
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}
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});
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};
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2015-05-23 21:19:30 +02:00
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2018-02-03 13:28:54 +01:00
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document.getElementById('randomizeData').addEventListener('click', function() {
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lineChartData.datasets.forEach(function(dataset) {
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dataset.data = dataset.data.map(function() {
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return randomScalingFactor();
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});
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});
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2015-05-23 21:19:30 +02:00
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2018-02-03 13:28:54 +01:00
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window.myLine.update();
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});
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</script>
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2015-05-23 21:19:30 +02:00
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</body>
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</html>
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