104 lines
3.1 KiB
HTML
104 lines
3.1 KiB
HTML
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<!doctype html>
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<html>
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<head>
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<title>Line Chart - Cubic interpolation mode</title>
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<script src="../../../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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<br>
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<br>
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<button id="randomizeData">Randomize Data</button>
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<script>
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var randomScalingFactor = function() {
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return Math.round(Math.random() * 100);
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};
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var datapoints = [0, 20, 20, 60, 60, 120, NaN, 180, 120, 125, 105, 110, 170];
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var config = {
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type: 'line',
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data: {
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labels: ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12"],
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datasets: [{
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label: "Cubic interpolation (monotone)",
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data: datapoints,
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borderColor: window.chartColors.red,
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backgroundColor: 'rgba(0, 0, 0, 0)',
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fill: false,
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cubicInterpolationMode: 'monotone'
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}, {
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label: "Cubic interpolation (default)",
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data: datapoints,
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borderColor: window.chartColors.blue,
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backgroundColor: 'rgba(0, 0, 0, 0)',
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fill: false,
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}, {
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label: "Linear interpolation",
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data: datapoints,
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borderColor: window.chartColors.green,
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backgroundColor: 'rgba(0, 0, 0, 0)',
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fill: false,
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lineTension: 0
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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 - Cubic interpolation mode'
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},
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tooltips: {
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mode: 'index'
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},
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scales: {
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xAxes: [{
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display: true,
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scaleLabel: {
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display: true
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}
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}],
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yAxes: [{
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display: true,
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scaleLabel: {
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display: true,
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labelString: 'Value'
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},
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ticks: {
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suggestedMin: -10,
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suggestedMax: 200,
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}
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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('randomizeData').addEventListener('click', function() {
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for (var i = 0, len = datapoints.length; i < len; ++i) {
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datapoints[i] = Math.random() < 0.05 ? NaN : randomScalingFactor();
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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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