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122 lines
2.4 KiB
Markdown
122 lines
2.4 KiB
Markdown
# Line Chart drawTime
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```js chart-editor
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// <block:setup:2>
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const inputs = {
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min: -100,
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max: 100,
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count: 8,
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decimals: 2,
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continuity: 1
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};
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const generateLabels = () => {
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return Utils.months({count: inputs.count});
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};
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Utils.srand(3);
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const generateData = () => (Utils.numbers(inputs));
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// </block:setup>
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// <block:data:0>
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const data = {
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labels: generateLabels(),
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datasets: [
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{
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label: 'Dataset 1',
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data: generateData(),
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borderColor: Utils.CHART_COLORS.red,
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backgroundColor: Utils.CHART_COLORS.red,
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fill: true
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},
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{
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label: 'Dataset 2',
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data: generateData(),
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borderColor: Utils.CHART_COLORS.blue,
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backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue),
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fill: true
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}
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]
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};
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// </block:data>
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// <block:actions:3>
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let smooth = false;
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const actions = [
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{
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name: 'drawTime: beforeDatasetDraw (default)',
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handler: (chart) => {
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chart.options.plugins.filler.drawTime = 'beforeDatasetDraw';
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chart.update();
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}
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},
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{
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name: 'drawTime: beforeDatasetsDraw',
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handler: (chart) => {
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chart.options.plugins.filler.drawTime = 'beforeDatasetsDraw';
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chart.update();
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}
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},
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{
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name: 'drawTime: beforeDraw',
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handler: (chart) => {
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chart.options.plugins.filler.drawTime = 'beforeDraw';
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chart.update();
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}
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},
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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 = generateData();
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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: 'Smooth',
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handler(chart) {
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smooth = !smooth;
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chart.options.elements.line.tension = smooth ? 0.4 : 0;
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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:config:1>
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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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filler: {
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propagate: false,
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},
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title: {
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display: true,
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text: (ctx) => 'drawTime: ' + ctx.chart.options.plugins.filler.drawTime
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}
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},
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pointBackgroundColor: '#fff',
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radius: 10,
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interaction: {
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intersect: false,
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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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* [Area](../../charts/area.html)
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* [Configuration (`drawTime`)](../../charts/area.html#configuration)
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* [Line](../../charts/line.html)
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* [Line Styling (`tension`)](../../charts/line.html#line-styling)
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* [Data structures (`labels`)](../../general/data-structures.html)
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