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68 lines
2.5 KiB
HTML
68 lines
2.5 KiB
HTML
<!doctype html>
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<html>
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<head>
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<title>Line Chart</title>
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<script src="../Chart.js"></script>
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<script src="../node_modules/jquery/dist/jquery.min.js"></script>
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</head>
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<body>
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<div style="width:50%">
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<div>
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<canvas id="canvas" height="450" width="600"></canvas>
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</div>
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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 randomScalingFactor = function() {
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return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
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};
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var randomColor = function(opacity) {
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return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';
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};
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var config = {
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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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data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
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fill: false,
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}, {
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label: "My Second dataset",
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data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
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}]
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},
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options: {
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responsive: true
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}
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};
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$.each(config.data.datasets, function(i, dataset) {
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dataset.borderColor = randomColor(0.4);
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dataset.backgroundColor = randomColor(0.5);
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dataset.pointBorderColor = randomColor(0.7);
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dataset.pointBackgroundColor = randomColor(0.5);
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dataset.pointBorderWidth = 1;
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});
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console.log(config.data);
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window.onload = function() {
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var ctx = document.getElementById("canvas").getContext("2d");
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window.myLine = new Chart(ctx).Line(config);
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};
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$('#randomizeData').click(function() {
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config.data.datasets[0].data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
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config.data.datasets[1].data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
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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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