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- <!doctype html>
- <html>
- <head>
- <title>Radar 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>
- <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 randomScalingFactor = function() {
- return Math.round(Math.random() * 100);
- };
- var randomColorFactor = function() {
- return Math.round(Math.random() * 255);
- };
- var randomColor = function(opacity) {
- return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
- };
- var config = {
- type: 'radar',
- data: {
- labels: ["Eating", "Drinking", "Sleeping", "Designing", "Coding", "Cycling", "Running"],
- datasets: [{
- label: "My First dataset",
- backgroundColor: "rgba(220,220,220,0.2)",
- pointBackgroundColor: "rgba(220,220,220,1)",
- data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
- }, {
- label: 'Hidden dataset',
- hidden: true,
- data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
- }, {
- label: "My Second dataset",
- backgroundColor: "rgba(151,187,205,0.2)",
- pointBackgroundColor: "rgba(151,187,205,1)",
- hoverPointBackgroundColor: "#fff",
- pointHighlightStroke: "rgba(151,187,205,1)",
- data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
- },]
- },
- options: {
- legend: {
- position: 'top',
- },
- title: {
- display: true,
- text: 'Chart.js Radar Chart'
- },
- scale: {
- reverse: false,
- ticks: {
- beginAtZero: true
- }
- }
- }
- };
- window.onload = function() {
- window.myRadar = new Chart(document.getElementById("canvas"), config);
- };
- $('#randomizeData').click(function() {
- $.each(config.data.datasets, function(i, dataset) {
- dataset.data = dataset.data.map(function() {
- return randomScalingFactor();
- });
- });
- window.myRadar.update();
- });
- $('#addDataset').click(function() {
- var newDataset = {
- label: 'Dataset ' + config.data.datasets.length,
- borderColor: randomColor(0.4),
- backgroundColor: randomColor(0.5),
- pointBorderColor: randomColor(0.7),
- pointBackgroundColor: randomColor(0.5),
- pointBorderWidth: 1,
- data: [],
- };
- for (var index = 0; index < config.data.labels.length; ++index) {
- newDataset.data.push(randomScalingFactor());
- }
- config.data.datasets.push(newDataset);
- window.myRadar.update();
- });
- $('#addData').click(function() {
- if (config.data.datasets.length > 0) {
- config.data.labels.push('dataset #' + config.data.labels.length);
- $.each(config.data.datasets, function (i, dataset) {
- dataset.data.push(randomScalingFactor());
- });
- window.myRadar.update();
- }
- });
- $('#removeDataset').click(function() {
- config.data.datasets.splice(0, 1);
- window.myRadar.update();
- });
- $('#removeData').click(function() {
- config.data.labels.pop(); // remove the label first
- $.each(config.data.datasets, function(i, dataset) {
- dataset.data.pop();
- });
- window.myRadar.update();
- });
- </script>
- </body>
- </html>
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