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64 lines
1.4 KiB
Markdown
64 lines
1.4 KiB
Markdown
# Chart Area Border
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```js chart-editor
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// <block:data:2>
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const DATA_COUNT = 7;
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const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
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const labels = Utils.months({count: 7});
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const data = {
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labels: labels,
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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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borderColor: Utils.CHART_COLORS.red,
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backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
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},
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{
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label: 'Dataset 2',
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data: Utils.numbers(NUMBER_CFG),
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borderColor: Utils.CHART_COLORS.blue,
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backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
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}
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]
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};
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// </block:data>
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// <block:plugin:1>
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const chartAreaBorder = {
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id: 'chartAreaBorder',
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beforeDraw(chart, args, options) {
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const {ctx, chartArea: {left, top, width, height}} = chart;
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ctx.save();
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ctx.strokeStyle = options.borderColor;
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ctx.lineWidth = options.borderWidth;
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ctx.setLineDash(options.borderDash || []);
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ctx.lineDashOffset = options.borderDashOffset;
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ctx.strokeRect(left, top, width, height);
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ctx.restore();
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}
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};
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// </block:plugin>
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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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chartAreaBorder: {
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borderColor: 'red',
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borderWidth: 2,
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borderDash: [5, 5],
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borderDashOffset: 2,
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}
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}
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},
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plugins: [chartAreaBorder]
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};
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// </block:config>
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module.exports = {
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config: config,
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};
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