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113 lines
2.3 KiB
Markdown
113 lines
2.3 KiB
Markdown
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# Doughnut
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```js chart-editor
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// <block:actions:2>
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const actions = [
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{
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name: 'Randomize',
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handler(chart) {
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chart.data.datasets.forEach(dataset => {
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dataset.data = Utils.numbers({count: chart.data.labels.length, min: 0, max: 100});
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});
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chart.update();
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}
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},
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{
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name: 'Add Dataset',
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handler(chart) {
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const data = chart.data;
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const newDataset = {
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label: 'Dataset ' + (data.datasets.length + 1),
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backgroundColor: [],
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data: [],
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};
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for (let i = 0; i < data.labels.length; i++) {
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newDataset.data.push(Utils.numbers({count: 1, min: 0, max: 100}));
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const colorIndex = i % Object.keys(Utils.CHART_COLORS).length;
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newDataset.backgroundColor.push(Object.values(Utils.CHART_COLORS)[colorIndex]);
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}
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chart.data.datasets.push(newDataset);
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chart.update();
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}
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},
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{
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name: 'Add Data',
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handler(chart) {
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const data = chart.data;
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if (data.datasets.length > 0) {
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data.labels.push('data #' + (data.labels.length + 1));
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for (var index = 0; index < data.datasets.length; ++index) {
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data.datasets[index].data.push(Utils.rand(0, 100));
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}
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chart.update();
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}
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}
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},
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{
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name: 'Remove Dataset',
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handler(chart) {
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chart.data.datasets.pop();
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chart.update();
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}
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},
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{
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name: 'Remove Data',
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handler(chart) {
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chart.data.labels.splice(-1, 1); // remove the label first
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chart.data.datasets.forEach(dataset => {
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dataset.data.pop();
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});
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chart.update();
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}
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}
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];
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// </block:actions>
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// <block:setup:1>
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const DATA_COUNT = 5;
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const NUMBER_CFG = {count: DATA_COUNT, min: 0, max: 100};
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const data = {
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labels: ['Red', 'Orange', 'Yellow', 'Green', 'Blue'],
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datasets: [
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{
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label: 'Dataset 1',
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data: Utils.numbers(NUMBER_CFG),
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backgroundColor: Object.values(Utils.CHART_COLORS),
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}
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]
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};
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// </block:setup>
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// <block:config:0>
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const config = {
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type: 'doughnut',
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data: data,
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options: {
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responsive: true,
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plugins: {
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legend: {
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position: 'top',
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},
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title: {
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display: true,
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text: 'Chart.js Doughnut Chart'
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}
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}
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},
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};
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// </block:config>
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module.exports = {
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actions: actions,
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config: config,
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};
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```
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