108 lines
3.5 KiB
HTML
108 lines
3.5 KiB
HTML
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<!doctype html>
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<html>
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<head>
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<title>Tooltip Hooks</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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<script>
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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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borderColor: window.chartColors.red,
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backgroundColor: window.chartColors.red,
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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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fill: false,
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}, {
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label: "My Second dataset",
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borderColor: window.chartColors.blue,
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backgroundColor: window.chartColors.blue,
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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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fill: false,
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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 - Custom Information in Tooltip"
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},
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tooltips: {
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mode: 'index',
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callbacks: {
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// Use the footer callback to display the sum of the items showing in the tooltip
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footer: function(tooltipItems, data) {
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var sum = 0;
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tooltipItems.forEach(function(tooltipItem) {
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sum += data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
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});
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return 'Sum: ' + sum;
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},
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},
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footerFontStyle: 'normal'
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},
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hover: {
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mode: 'index',
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intersect: true
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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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show: true,
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labelString: 'Month'
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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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show: true,
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labelString: 'Value'
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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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</script>
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</body>
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</html>
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