--- /dev/null
+<!doctype html>
+<html>
+
+<head>
+ <title>Line Chart</title>
+ <script src="../../../dist/Chart.min.js"></script>
+ <script src="../../utils.js"></script>
+ <style>
+ canvas{
+ -moz-user-select: none;
+ -webkit-user-select: none;
+ -ms-user-select: none;
+ }
+ </style>
+</head>
+
+<body>
+ <div style="width:75%;">
+ <canvas id="canvas"></canvas>
+ </div>
+ <br>
+ <br>
+ <button id="randomizeData">Randomize Data</button>
+ <button id="addDataset">Add Dataset</button>
+ <button id="removeDataset">Remove Dataset</button>
+ <button id="addData">Add Data</button>
+ <button id="removeData">Remove Data</button>
+ <script>
+ var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
+ var config = {
+ type: 'line',
+ data: {
+ labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
+ datasets: [{
+ label: 'My First dataset',
+ backgroundColor: window.chartColors.red,
+ borderColor: window.chartColors.red,
+ data: [
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor()
+ ],
+ fill: false,
+ }, {
+ label: 'My Second dataset',
+ fill: false,
+ backgroundColor: window.chartColors.blue,
+ borderColor: window.chartColors.blue,
+ data: [
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor(),
+ randomScalingFactor()
+ ],
+ }]
+ },
+ options: {
+ responsive: true,
+ title: {
+ display: true,
+ text: 'Chart.js Line Chart'
+ },
+ tooltips: {
+ mode: 'index',
+ intersect: false,
+ },
+ hover: {
+ mode: 'nearest',
+ intersect: true
+ },
+ scales: {
+ xAxes: [{
+ display: true,
+ scaleLabel: {
+ display: true,
+ labelString: 'Month'
+ }
+ }],
+ yAxes: [{
+ display: true,
+ scaleLabel: {
+ display: true,
+ labelString: 'Value'
+ }
+ }]
+ }
+ }
+ };
+
+ window.onload = function() {
+ var ctx = document.getElementById('canvas').getContext('2d');
+ window.myLine = new Chart(ctx, config);
+ };
+
+ document.getElementById('randomizeData').addEventListener('click', function() {
+ config.data.datasets.forEach(function(dataset) {
+ dataset.data = dataset.data.map(function() {
+ return randomScalingFactor();
+ });
+
+ });
+
+ window.myLine.update();
+ });
+
+ var colorNames = Object.keys(window.chartColors);
+ document.getElementById('addDataset').addEventListener('click', function() {
+ var colorName = colorNames[config.data.datasets.length % colorNames.length];
+ var newColor = window.chartColors[colorName];
+ var newDataset = {
+ label: 'Dataset ' + config.data.datasets.length,
+ backgroundColor: newColor,
+ borderColor: newColor,
+ data: [],
+ fill: false
+ };
+
+ for (var index = 0; index < config.data.labels.length; ++index) {
+ newDataset.data.push(randomScalingFactor());
+ }
+
+ config.data.datasets.push(newDataset);
+ window.myLine.update();
+ });
+
+ document.getElementById('addData').addEventListener('click', function() {
+ if (config.data.datasets.length > 0) {
+ var month = MONTHS[config.data.labels.length % MONTHS.length];
+ config.data.labels.push(month);
+
+ config.data.datasets.forEach(function(dataset) {
+ dataset.data.push(randomScalingFactor());
+ });
+
+ window.myLine.update();
+ }
+ });
+
+ document.getElementById('removeDataset').addEventListener('click', function() {
+ config.data.datasets.splice(0, 1);
+ window.myLine.update();
+ });
+
+ document.getElementById('removeData').addEventListener('click', function() {
+ config.data.labels.splice(-1, 1); // remove the label first
+
+ config.data.datasets.forEach(function(dataset) {
+ dataset.data.pop();
+ });
+
+ window.myLine.update();
+ });
+ </script>
+</body>
+
+</html>
projects / thirdparty / Chart.js.git / commitdiff
