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- <!DOCTYPE html>
- <html lang="en-US">
- <head>
- <meta charset="utf-8">
- <meta http-equiv="X-UA-Compatible" content="IE=Edge">
- <meta name="viewport" content="width=device-width, initial-scale=1">
- <link rel="stylesheet" type="text/css" href="../style.css">
- <link rel="icon" type="image/ico" href="../favicon.ico">
- <script src="https://cdn.jsdelivr.net/npm/chart.js@2.7.0/dist/Chart.min.js"></script>
- <script src="../../chartjs-plugin-datalabels.js"></script>
- <script src="../utils.js"></script>
- </head>
- <body>
- <div id="side">
- <div id="header"></div>
- <div id="actions">
- <button onclick="randomize(this)">Randomize</button>
- <button onclick="addData(this)">Add Data</button>
- <button onclick="removeData(this)">Remove Data</button>
- </div>
- </div>
- <div id="charts">
- <div class="wrapper"><canvas id="chart-0"></canvas></div>
- </div>
- <script>
- var SAMPLE_INFO = {
- group: 'Charts',
- name: 'Radar',
- };
- </script>
- <script id="script-init">
- var DATA_COUNT = 6;
- var labels = [];
- Samples.srand(6);
- for (var i = 0; i < DATA_COUNT; ++i) {
- labels.push('' + i);
- }
- Chart.helpers.merge(Chart.defaults.global, {
- maintainAspectRatio: false,
- tooltips: false,
- layout: {
- padding: 16
- },
- elements: {
- point: {
- hoverRadius: 7,
- radius: 5
- }
- },
- plugins: {
- legend: false,
- title: false
- }
- });
- </script>
- <script id="script-construct">
- var chart = new Chart('chart-0', {
- type: 'radar',
- data: {
- labels: labels,
- datasets: [{
- backgroundColor: Samples.transparentize(Samples.color(0), 0.75),
- borderColor: Samples.color(0),
- data: Samples.numbers({
- count: DATA_COUNT,
- min: 0,
- max: 100
- })
- }, {
- backgroundColor: Samples.transparentize(Samples.color(1), 0.75),
- borderColor: Samples.color(1),
- data: Samples.numbers({
- count: DATA_COUNT,
- min: 0,
- max: 100
- })
- }, {
- backgroundColor: Samples.transparentize(Samples.color(2), 0.75),
- borderColor: Samples.color(2),
- data: Samples.numbers({
- count: DATA_COUNT,
- min: 0,
- max: 100
- })
- }]
- },
- options: {
- plugins: {
- datalabels: {
- backgroundColor: function(context) {
- return context.dataset.borderColor;
- },
- color: 'white',
- padding: 4,
- font: {
- size: 10,
- weight: 'bold'
- },
- formatter: Math.round
- }
- }
- }
- });
- </script>
- <script id="script-actions">
- function randomize() {
- chart.data.datasets.forEach(function(dataset, i) {
- var color = Samples.color();
- dataset.backgroundColor = Samples.transparentize(color, 0.75),
- dataset.borderColor = color;
- dataset.data = dataset.data.map(function(value) {
- return Samples.rand(0, 100);
- });
- });
- chart.update();
- }
- function addData() {
- chart.data.labels.push(chart.data.labels.length);
- chart.data.datasets.forEach(function(dataset, i) {
- dataset.data.push(Samples.rand(0, 100));
- });
- chart.update();
- }
- function removeData() {
- if (chart.data.labels.length > 3) {
- chart.data.labels.shift();
- chart.data.datasets.forEach(function(dataset, i) {
- dataset.data.shift();
- });
- chart.update();
- }
- }
- </script>
- </body>
- </html>
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