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Gauge Chart with React Recharts (http://recharts.org)
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import React from 'react'; | |
import { Sector, Cell, PieChart, Pie } from 'recharts'; | |
const GaugeChart = () => { | |
const width = 500; | |
const chartValue = 180; | |
const colorData = [{ | |
value: 40, // Meaning span is 0 to 40 | |
color: '#663399' | |
}, { | |
value: 100, // span 40 to 140 | |
color: '#e91e63' | |
}, { | |
value: 50, // span 140 to 190 | |
color: '#ff9800' | |
}, { | |
value: 20, | |
color: '#4caf50' | |
} | |
]; | |
const activeSectorIndex = colorData.map((cur, index, arr) => { | |
const curMax = [...arr] | |
.splice(0, index + 1) | |
.reduce((a, b) => ({ value: a.value + b.value })) | |
.value; | |
return (chartValue > (curMax - cur.value)) && (chartValue <= curMax); | |
}) | |
.findIndex(cur => cur); | |
const sumValues = colorData | |
.map(cur => cur.value) | |
.reduce((a, b) => a + b); | |
const arrowData = [ | |
{ value: chartValue }, | |
{ value: 0 }, | |
{ value: sumValues - chartValue } | |
]; | |
const pieProps = { | |
startAngle: 180, | |
endAngle: 0, | |
cx: width / 2, | |
cy: width / 2 | |
}; | |
const pieRadius = { | |
innerRadius: (width / 2) * 0.35, | |
outerRadius: (width / 2) * 0.4 | |
}; | |
const Arrow = ({ cx, cy, midAngle, outerRadius }) => { //eslint-disable-line react/no-multi-comp | |
const RADIAN = Math.PI / 180; | |
const sin = Math.sin(-RADIAN * midAngle); | |
const cos = Math.cos(-RADIAN * midAngle); | |
const mx = cx + (outerRadius + width * 0.03) * cos; | |
const my = cy + (outerRadius + width * 0.03) * sin; | |
return ( | |
<g> | |
<circle cx={cx} cy={cy} r={width * 0.05} fill="#666" stroke="none"/> | |
<path d={`M${cx},${cy}L${mx},${my}`} strokeWidth="6" stroke="#666" fill="none" strokeLinecap="round"/> | |
</g> | |
); | |
}; | |
const ActiveSectorMark = ({ cx, cy, innerRadius, outerRadius, startAngle, endAngle, fill }) => { //eslint-disable-line react/no-multi-comp | |
return ( | |
<g> | |
<Sector | |
cx={cx} | |
cy={cy} | |
innerRadius={innerRadius} | |
outerRadius={outerRadius * 1.2} | |
startAngle={startAngle} | |
endAngle={endAngle} | |
fill={fill} | |
/> | |
</g> | |
); | |
}; | |
return ( | |
<PieChart width={width} height={(width / 2) + 30}> | |
<Pie | |
activeIndex={activeSectorIndex} | |
activeShape={ActiveSectorMark} | |
data={colorData} | |
fill="#8884d8" | |
{ ...pieRadius } | |
{ ...pieProps } | |
> | |
{ | |
colorData.map((entry, index) => ( | |
<Cell key={`cell-${index}`} fill={colorData[index].color} /> | |
)) | |
} | |
</Pie> | |
<Pie | |
stroke="none" | |
activeIndex={1} | |
activeShape={ Arrow } | |
data={ arrowData } | |
outerRadius={ pieRadius.innerRadius } | |
fill="none" | |
{ ...pieProps } | |
/> | |
</PieChart> | |
); | |
}; | |
export default GaugeChart; |
You're welcome! I had forgotten all about it!
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I've absolutely no recollection of me creating this (but there are some tells in the code that it's indeed written by me 😄), or what I used it for, but I'm happy it's helping you! And thanks @chambleton for creating that demo!