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116 lines
2.4 KiB
Markdown
116 lines
2.4 KiB
Markdown
# Time Scale
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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.forEach(function(dataObj, j) {
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const newVal = Utils.rand(0, 100);
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if (typeof dataObj === 'object') {
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dataObj.y = newVal;
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} else {
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dataset.data[j] = newVal;
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}
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});
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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 = 7;
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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: [ // Date Objects
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Utils.newDate(0),
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Utils.newDate(1),
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Utils.newDate(2),
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Utils.newDate(3),
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Utils.newDate(4),
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Utils.newDate(5),
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Utils.newDate(6)
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],
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datasets: [{
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label: 'My First dataset',
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backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
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borderColor: Utils.CHART_COLORS.red,
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fill: false,
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data: Utils.numbers(NUMBER_CFG),
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}, {
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label: 'My Second dataset',
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backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
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borderColor: Utils.CHART_COLORS.blue,
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fill: false,
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data: Utils.numbers(NUMBER_CFG),
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}, {
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label: 'Dataset with point data',
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backgroundColor: Utils.transparentize(Utils.CHART_COLORS.green, 0.5),
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borderColor: Utils.CHART_COLORS.green,
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fill: false,
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data: [{
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x: Utils.newDateString(0),
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y: Utils.rand(0, 100)
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}, {
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x: Utils.newDateString(5),
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y: Utils.rand(0, 100)
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}, {
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x: Utils.newDateString(7),
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y: Utils.rand(0, 100)
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}, {
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x: Utils.newDateString(15),
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y: Utils.rand(0, 100)
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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: 'line',
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data: data,
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options: {
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plugins: {
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title: {
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text: 'Chart.js Time Scale',
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display: true
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}
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},
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scales: {
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x: {
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type: 'time',
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time: {
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// Luxon format string
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tooltipFormat: 'DD T'
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},
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title: {
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display: true,
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text: 'Date'
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}
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},
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y: {
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title: {
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display: true,
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text: 'value'
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}
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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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## Docs
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* [Line](../../charts/line.html)
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* [Time Cartesian Axis](../../axes/cartesian/time.html) |