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- <!doctype html>
- <html>
-
- <head>
- <title>Line Chart Multiple Axes</title>
- <script src="../dist/Chart.bundle.js"></script>
- <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.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 randomScalingFactor = function() {
- return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
- };
- var randomColor = function(opacity) {
- return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';
- };
-
- var lineChartData = {
- labels: ["January", "February", "March", "April", "May", "June", "July"],
- datasets: [{
- label: "My First dataset",
- data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
- yAxisID: "y-axis-1",
- }, {
- label: "My Second dataset",
- data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
- yAxisID: "y-axis-2"
- }]
- };
-
- $.each(lineChartData.datasets, function(i, dataset) {
- dataset.borderColor = randomColor(0.4);
- dataset.backgroundColor = randomColor(1);
- dataset.pointBorderColor = randomColor(0.7);
- dataset.pointBackgroundColor = randomColor(0.5);
- dataset.pointBorderWidth = 1;
- });
-
- window.onload = function() {
- var ctx = document.getElementById("canvas").getContext("2d");
- window.myLine = Chart.Line(ctx, {
- data: lineChartData,
- options: {
- responsive: true,
- hoverMode: 'label',
- stacked: false,
- title:{
- display:true,
- text:'Chart.js Line Chart - Multi Axis'
- },
- scales: {
- xAxes: [{
- display: true,
- gridLines: {
- offsetGridLines: false
- }
- }],
- yAxes: [{
- type: "linear",
- display: true,
- position: "left",
- id: "y-axis-1",
- }, {
- type: "linear",
- display: true,
- position: "right",
- id: "y-axis-2",
-
-
- gridLines: {
- drawOnChartArea: false,
- },
- }],
- }
- }
- });
- };
-
- $('#randomizeData').click(function() {
- lineChartData.datasets[0].data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
-
- lineChartData.datasets[1].data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
-
- window.myLine.update();
- });
- </script>
- </body>
-
- </html>
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