Add PieChart #56
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| import React, { useMemo } from 'react'; | ||
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| import { pie, arc } from 'd3-shape'; | ||
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| import styles from './styles.css'; | ||
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| export interface PieChartProps<K> { | ||
| width: number; | ||
| height: number; | ||
| innerRadius: number; | ||
| data: K[]; | ||
| valueSelector: (v: K) => number; | ||
| labelSelector: (v: K) => string; | ||
| colorSelector?: (v: K) => string; | ||
| showLabels?: boolean; | ||
| } | ||
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| const colorAccent = getComputedStyle(document.documentElement) | ||
| .getPropertyValue('--tui-color-accent') | ||
| .trim(); | ||
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| const defaultColorSelector = () => colorAccent; | ||
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| function PieChart<K>(props: PieChartProps<K>) { | ||
| const { | ||
| width, | ||
| height, | ||
| data, | ||
| valueSelector, | ||
| labelSelector, | ||
| colorSelector = defaultColorSelector, | ||
| innerRadius = 0, | ||
| showLabels = true, | ||
| } = props; | ||
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| const pieGenerator = useMemo( | ||
| () => pie() | ||
| .value(valueSelector), | ||
| [valueSelector], | ||
| ); | ||
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| const arcGenerator = useMemo( | ||
| () => arc() | ||
| .innerRadius(innerRadius) | ||
| .outerRadius(Math.min(width, height) / 2 - 1), | ||
| [innerRadius, width, height], | ||
| ); | ||
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| const arcs = pieGenerator(data); | ||
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There was a problem hiding this comment. Do we not need to memoize this? |
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| return ( | ||
| <svg | ||
| width={width} | ||
| height={height} | ||
| > | ||
| <g | ||
| transform={`translate(${width / 2}, ${height / 2})`} | ||
| > | ||
| <g> | ||
| {arcs.map((d) => ( | ||
| <path | ||
| key={labelSelector(d.data)} | ||
| d={arcGenerator(d)} | ||
| fill={colorSelector(d.data)} | ||
| > | ||
| <title>{labelSelector(d.data)}</title> | ||
| </path> | ||
| ))} | ||
| </g> | ||
| { showLabels && ( | ||
| <g> | ||
| {arcs.map((d) => ( | ||
| <text | ||
| className={styles.textLabel} | ||
| textAnchor="middle" | ||
| transform={`translate(${arcGenerator.centroid(d)})`} | ||
| > | ||
| <tspan> | ||
| {labelSelector(d.data)} | ||
| </tspan> | ||
| </text> | ||
| ))} | ||
| </g> | ||
| )} | ||
| </g> | ||
| </svg> | ||
| ); | ||
| } | ||
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| export default PieChart; | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,4 @@ | ||
| .text-label { | ||
| fill: var(--tui-color-text); | ||
| font-size: var(--tui-font-size-medium); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| import React from 'react'; | ||
| import { Story } from '@storybook/react/types-6-0'; | ||
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| import PieChart, { PieChartProps } from '#components/PieChart'; | ||
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| export default { | ||
| title: 'Visualization/PieChart', | ||
| component: PieChart, | ||
| argTypes: {}, | ||
| }; | ||
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| interface Item { | ||
| label: string; | ||
| value: number; | ||
| } | ||
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| const data = [ | ||
| { label: 'Jhapa', value: 20000, color: '#7fc97f' }, | ||
| { label: 'Illam', value: 10000, color: '#beaed4' }, | ||
| { label: 'Panchthar', value: 30000, color: '#fdc086' }, | ||
| { label: 'Taplejung', value: 50000, color: '#ffff99' }, | ||
| ]; | ||
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| const Template: Story<PieChartProps<Item>> = (props) => ( | ||
| <PieChart | ||
| {...props} | ||
| width={600} | ||
| height={300} | ||
| data={data} | ||
| valueSelector={(d) => d.value} | ||
| labelSelector={(d) => d.label} | ||
| colorSelector={(d) => d.color} | ||
| /> | ||
| ); | ||
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| export const Default = Template.bind({}); | ||
| Default.args = { | ||
| }; |
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I guess this can also be a dev-dependency