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986f72f933
* Rename dist/Chart* to dist/chart* * Add a note to migration docs * Review update
159 lines
3.5 KiB
HTML
159 lines
3.5 KiB
HTML
<!doctype html>
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<html>
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<head>
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<title>Time Scale Point Data</title>
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<script src="../../../dist/chart.min.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/moment@2.24.0"></script>
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<script src="https://cdn.jsdelivr.net/npm/chartjs-adapter-moment@0.1.1"></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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<button id="addData">Add Data</button>
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<button id="removeData">Remove Data</button>
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<script>
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function newDate(days) {
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return moment().add(days, 'd').toDate();
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}
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function newDateString(days) {
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return moment().add(days, 'd').format();
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}
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var color = Chart.helpers.color;
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var config = {
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type: 'line',
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data: {
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datasets: [{
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label: 'Dataset with string point data',
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backgroundColor: color(window.chartColors.red).alpha(0.5).rgbString(),
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borderColor: window.chartColors.red,
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fill: false,
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data: [{
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x: newDateString(0),
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y: randomScalingFactor()
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}, {
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x: newDateString(2),
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y: randomScalingFactor()
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}, {
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x: newDateString(4),
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y: randomScalingFactor()
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}, {
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x: newDateString(5),
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y: randomScalingFactor()
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}],
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}, {
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label: 'Dataset with date object point data',
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backgroundColor: color(window.chartColors.blue).alpha(0.5).rgbString(),
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borderColor: window.chartColors.blue,
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fill: false,
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data: [{
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x: newDate(0),
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y: randomScalingFactor()
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}, {
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x: newDate(2),
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y: randomScalingFactor()
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}, {
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x: newDate(4),
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y: randomScalingFactor()
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}, {
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x: newDate(5),
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y: 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 Time Point Data'
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},
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scales: {
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x: {
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type: 'time',
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display: true,
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scaleLabel: {
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display: true,
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labelString: 'Date'
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},
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ticks: {
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major: {
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enabled: true
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},
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font: function(context) {
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if (context.tick && context.tick.major) {
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return {
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style: 'bold',
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color: '#FF0000'
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};
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}
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}
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}
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},
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y: {
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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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}
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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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config.data.datasets.forEach(function(dataset) {
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dataset.data.forEach(function(dataObj) {
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dataObj.y = randomScalingFactor();
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});
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});
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window.myLine.update();
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});
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document.getElementById('addData').addEventListener('click', function() {
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if (config.data.datasets.length > 0) {
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config.data.datasets[0].data.push({
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x: newDateString(config.data.datasets[0].data.length + 2),
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y: randomScalingFactor()
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});
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config.data.datasets[1].data.push({
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x: newDate(config.data.datasets[1].data.length + 2),
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y: randomScalingFactor()
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});
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window.myLine.update();
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}
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});
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document.getElementById('removeData').addEventListener('click', function() {
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config.data.datasets.forEach(function(dataset) {
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dataset.data.pop();
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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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