54 lines
1.4 KiB
JavaScript
54 lines
1.4 KiB
JavaScript
import Component from '@glimmer/component';
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import { assert } from '@ember/debug';
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import { default as d3Shape, area, line } from 'd3-shape';
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import uniquely from 'nomad-ui/utils/properties/uniquely';
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export default class ChartPrimitiveArea extends Component {
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get colorClass() {
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if (this.args.colorClass) return this.args.colorClass;
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if (this.args.colorScale && this.args.index != null)
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return `${this.args.colorScale} ${this.args.colorScale}-${this.args.index + 1}`;
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return 'is-primary';
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}
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@uniquely('area-mask') maskId;
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@uniquely('area-fill') fillId;
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get curveMethod() {
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const mappings = {
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linear: 'curveLinear',
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stepAfter: 'curveStepAfter',
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};
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assert(
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`Provided curve "${this.curve}" is not an allowed curve type`,
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mappings[this.args.curve]
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);
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return mappings[this.args.curve];
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}
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get line() {
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const { xScale, yScale, xProp, yProp } = this.args;
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const builder = line()
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.curve(d3Shape[this.curveMethod])
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.defined(d => d[yProp] != null)
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.x(d => xScale(d[xProp]))
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.y(d => yScale(d[yProp]));
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return builder(this.args.data);
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}
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get area() {
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const { xScale, yScale, xProp, yProp } = this.args;
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const builder = area()
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.curve(d3Shape[this.curveMethod])
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.defined(d => d[yProp] != null)
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.x(d => xScale(d[xProp]))
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.y0(yScale(0))
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.y1(d => yScale(d[yProp]));
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return builder(this.args.data);
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}
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}
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