mirror of
https://github.com/chartjs/Chart.js.git
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333f2eba99
- allow options to be updated in-place or as a new object - re-merge new options and rebuild scales & tooltips - preserve reference to old scale if id/type not changed - related tests and new sample also added. - update document about options update - update doc and example
100 lines
2.8 KiB
HTML
100 lines
2.8 KiB
HTML
<!doctype html>
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<html>
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<head>
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<title>Toggle Scale Type</title>
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<script src="../../dist/Chart.bundle.js"></script>
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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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</head>
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<body>
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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="toggleScale">Toggle Scale Type</button>
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<script>
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var randomScalingFactor = function() {
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return Math.ceil(Math.random() * 10.0) * Math.pow(10, Math.ceil(Math.random() * 5));
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};
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var type = 'linear';
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var config = {
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type: 'line',
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data: {
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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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backgroundColor: window.chartColors.red,
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borderColor: 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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}, {
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label: "My Second dataset",
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backgroundColor: window.chartColors.blue,
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borderColor: 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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}]
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},
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options: {
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responsive: true,
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title:{
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display: true,
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text: 'Chart.js Line Chart - ' + type
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},
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scales: {
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xAxes: [{
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display: true,
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}],
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yAxes: [{
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display: true,
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type: type
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}]
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}
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}
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};
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window.onload = function() {
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var ctx = document.getElementById("canvas").getContext("2d");
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window.myLine = new Chart(ctx, config);
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};
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document.getElementById('toggleScale').addEventListener('click', function() {
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type = type === 'linear' ? 'logarithmic' : 'linear';
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window.myLine.options.title.text = 'Chart.js Line Chart - ' + type;
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window.myLine.options.scales.yAxes[0] = {
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display: true,
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type: type
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}
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window.myLine.update();
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});
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</script>
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</body>
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</html>
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