mirror of
https://github.com/chartjs/Chart.js.git
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96 lines
2.0 KiB
HTML
96 lines
2.0 KiB
HTML
<!DOCTYPE html>
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<html lang="en-US">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=Edge">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Scriptable > Bar | Chart.js sample</title>
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<link rel="stylesheet" type="text/css" href="../style.css">
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<script src="../../dist/chart.min.js"></script>
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<script src="../utils.js"></script>
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</head>
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<body>
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<div class="content">
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<div class="wrapper"><canvas id="chart-0"></canvas></div>
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<div class="toolbar">
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<button onclick="randomize(this)">Randomize</button>
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<button onclick="addDataset(this)">Add Dataset</button>
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<button onclick="removeDataset(this)">Remove Dataset</button>
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</div>
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</div>
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<script>
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var DATA_COUNT = 16;
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var utils = Samples.utils;
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utils.srand(110);
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function colorize(opaque, ctx) {
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var v = ctx.dataPoint.y;
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var c = v < -50 ? '#D60000'
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: v < 0 ? '#F46300'
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: v < 50 ? '#0358B6'
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: '#44DE28';
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return opaque ? c : utils.transparentize(c, 1 - Math.abs(v / 150));
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}
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function generateData() {
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return utils.numbers({
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count: DATA_COUNT,
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min: -100,
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max: 100
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});
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}
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var data = {
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labels: utils.months({count: DATA_COUNT}),
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datasets: [{
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data: generateData()
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}]
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};
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var options = {
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legend: false,
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tooltips: false,
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elements: {
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rectangle: {
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backgroundColor: colorize.bind(null, false),
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borderColor: colorize.bind(null, true),
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borderWidth: 2
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}
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}
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};
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var chart = new Chart('chart-0', {
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type: 'bar',
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data: data,
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options: options
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});
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// eslint-disable-next-line no-unused-vars
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function randomize() {
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chart.data.datasets.forEach(function(dataset) {
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dataset.data = generateData();
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});
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chart.update();
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}
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// eslint-disable-next-line no-unused-vars
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function addDataset() {
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chart.data.datasets.push({
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data: generateData()
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});
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chart.update();
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}
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// eslint-disable-next-line no-unused-vars
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function removeDataset() {
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chart.data.datasets.shift();
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chart.update();
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}
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</script>
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</body>
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</html>
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