--- /dev/null
+<!doctype html>
+<html>
+
+<head>
+ <title>Line Chart</title>
+ <script src="../dist/Chart.bundle.js"></script>
+ <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.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="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 randomScalingFactor = function() {
+ return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
+ };
+ var randomColorFactor = function() {
+ return Math.round(Math.random() * 255);
+ };
+ var randomColor = function(opacity) {
+ return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+ };
+
+ var config = {
+ type: 'line',
+ data: {
+ labels: ["January", "February", "March", "April", "May", "June", "July"],
+ datasets: [{
+ label: "dataset - big points",
+ data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+ fill: false,
+ borderDash: [5, 5],
+ pointRadius: 15,
+ pointHoverRadius: 10,
+ }, {
+ label: "dataset - individual point sizes",
+ data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+ fill: false,
+ borderDash: [5, 5],
+ pointRadius: [2, 4, 6, 18, 0, 12, 20],
+ }, {
+ label: "dataset - large pointHoverRadius",
+ data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+ fill: false,
+ pointHoverRadius: 30,
+ }, {
+ label: "dataset - large pointHitRadius",
+ data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+ fill: false,
+ pointHitRadius: 20,
+ }]
+ },
+ options: {
+ responsive: true,
+ legend: {
+ position: 'bottom',
+ },
+ hover: {
+ mode: 'label'
+ },
+ scales: {
+ xAxes: [{
+ display: true,
+ scaleLabel: {
+ display: true,
+ labelString: 'Month'
+ }
+ }],
+ yAxes: [{
+ display: true,
+ scaleLabel: {
+ display: true,
+ labelString: 'Value'
+ }
+ }]
+ },
+ title: {
+ display: true,
+ text: 'Chart.js Line Chart - Different point sizes'
+ }
+ }
+ };
+
+ $.each(config.data.datasets, function(i, dataset) {
+ var background = randomColor(0.5);
+ dataset.borderColor = background;
+ dataset.backgroundColor = background;
+ dataset.pointBorderColor = background;
+ dataset.pointBackgroundColor = background;
+ dataset.pointBorderWidth = 1;
+ });
+
+ window.onload = function() {
+ var ctx = document.getElementById("canvas").getContext("2d");
+ window.myLine = new Chart(ctx, config);
+ };
+
+ $('#randomizeData').click(function() {
+ $.each(config.data.datasets, function(i, dataset) {
+ dataset.data = dataset.data.map(function() {
+ return randomScalingFactor();
+ });
+
+ });
+
+ window.myLine.update();
+ });
+
+ $('#addData').click(function() {
+ if (config.data.datasets.length > 0) {
+ var month = MONTHS[config.data.labels.length % MONTHS.length];
+ config.data.labels.push(month);
+
+ $.each(config.data.datasets, function(i, dataset) {
+ dataset.data.push(randomScalingFactor());
+ if (Array.isArray(dataset.pointRadius)) {
+ dataset.pointRadius.push(Math.random() * 30);
+ }
+ });
+
+ window.myLine.update();
+ }
+ });
+
+ $('#removeData').click(function() {
+ config.data.labels.splice(-1, 1); // remove the label first
+
+ config.data.datasets.forEach(function(dataset, datasetIndex) {
+ dataset.data.pop();
+ if (Array.isArray(dataset.pointRadius)) {
+ dataset.pointRadius.pop();
+ }
+ });
+
+ window.myLine.update();
+ });
+ </script>
+</body>
+
+</html>
projects / thirdparty / Chart.js.git / commitdiff
