Sunburst Chart
Code
ChartUtil.tsx
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"use client";
import React, { useEffect, useCallback, useRef } from "react";
import * as d3 from "d3";
import { useResizeObserver } from "@/hooks/useResizeObserver";
import { ChartProps } from "@/types";
const ChartUtil = ({ data }: ChartProps) => {
const containerRef = useRef<HTMLDivElement | null>(null);
const configRef = useRef({
selector: "sun-burst-chart",
width: 650,
height: 450,
svg: undefined as any,
rootNode: undefined as any,
radius: 150,
color: undefined as any,
});
const renderSVG = useCallback(() => {
const container = containerRef.current as HTMLElement;
if (!container) return;
configRef.current.svg = d3
.select(container)
.html("")
.append("svg")
.attr("class", configRef.current.selector)
.attr("width", "100%")
.attr(
"viewBox",
`${-(configRef.current.width / 2)} ${-(configRef.current.height / 2)} ${
configRef.current.width
} ${configRef.current.height}`
);
}, []);
const transformData = useCallback(() => {
const partitionLayout = d3
.partition()
.size([2 * Math.PI, configRef.current.radius]);
configRef.current.rootNode = d3.hierarchy(data).sum((d) => d.value);
partitionLayout(configRef.current.rootNode);
}, [data]);
const getPie = useCallback(() => {
return d3
.pie()
.value((d: any) => d.value)
.sort(null);
}, []);
const getPieArc = useCallback(() => {
return d3
.arc()
.innerRadius((d: any) => d.data.y1 + 28)
.outerRadius((d: any) => d.data.y1 + 28);
}, []);
const midAngle = useCallback(
(d: any) => d.startAngle + (d.endAngle - d.startAngle) / 2,
[]
);
const renderArc = useCallback(() => {
const arcGenerator = d3
.arc()
.startAngle((d: any) => d.x0)
.endAngle((d: any) => d.x1)
.padAngle((d: any) => Math.min((d.x1 - d.x0) / 2, 0.05))
.padRadius(configRef.current.radius / 2)
.innerRadius((d: any) => d.y0)
.outerRadius((d: any) => d.y1 - 2);
const format = d3.format(",d");
configRef.current.svg
.append("g")
.selectAll("path")
.data(
configRef.current.rootNode.descendants().filter((d: any) => d.depth)
)
.join("path")
.attr("fill", (d: any) => {
let dataItem = d;
while (dataItem.depth > 1) {
dataItem = dataItem.parent;
}
return dataItem.data.color;
})
.attr("d", arcGenerator)
.attr("fill-opacity", 1)
.append("title")
.text(
(d: any) =>
`${d
.ancestors()
.map((dataItem: any) => dataItem.data.name)
.reverse()
.join("/")}\n${format(d.value)}`
);
}, []);
const renderDataTitle = useCallback(() => {
const pie = getPie();
const data = configRef.current.rootNode
.descendants()
.filter((d: any) => d.depth > 1);
const labelArc = getPieArc();
configRef.current.svg
.append("g")
.selectAll("text")
.data(pie(data))
.join("text")
.text((d: any) => d.data.data.name)
.attr("transform", (d: any) => {
const pos = labelArc.centroid(d);
pos[0] = (d.data.y1 + 50) * (midAngle(d) < Math.PI ? 1 : -1);
pos[1] -= 11;
return `translate(${pos})`;
})
.attr("pointer-events", "none")
.attr("text-anchor", "middle")
.attr("font-size", "14")
.attr("font-family", "Space Mono")
.attr("fill", "#fff")
.attr("dy", "15")
.style("text-anchor", (d: any) =>
midAngle(d) < Math.PI ? "start" : "end"
);
}, [getPie, getPieArc, midAngle]);
const renderLegendLines = useCallback(() => {
const arc = d3
.arc()
.innerRadius((d: any) => d.data.y0)
.outerRadius((d: any) => d.data.y1 + 40);
const pie = getPie();
const data = configRef.current.rootNode
.descendants()
.filter((d: any) => d.depth > 1);
const outerArc = getPieArc();
configRef.current.svg
.append("g")
.selectAll("lines")
.data(pie(data))
.join("polyline")
.attr("opacity", "1")
.attr("stroke", "#707070")
.attr("stroke-width", "1px")
.attr("stroke-dasharray", "1")
.attr("fill", "none")
.attr("points", (d: any) => {
const innerPos = arc.centroid(d);
const pos = outerArc.centroid(d);
pos[0] = (d.data.y1 + 40) * (midAngle(d) < Math.PI ? 1 : -1);
return [innerPos, outerArc.centroid(d), pos];
});
}, [getPie, getPieArc, midAngle]);
const renderLegendMarkers = useCallback(() => {
const pie = getPie();
const data = configRef.current.rootNode
.descendants()
.filter((d: any) => d.depth > 1);
const circleArc = getPieArc();
configRef.current.svg
.append("g")
.selectAll("circles")
.data(pie(data))
.join("circle")
.attr("transform", (d: any) => {
const pos = circleArc.centroid(d);
pos[0] = (d.data.y1 + 40) * (midAngle(d) < Math.PI ? 1 : -1);
return `translate(${pos})`;
})
.attr("r", "4")
.attr("class", "legendSmallCircle")
.attr("cx", (d: any) => d.x0)
.attr("cy", (d: any) => d.y0)
.attr("fill", (d: any) => d.data.parent.data.color);
}, [getPie, getPieArc, midAngle]);
const renderFunc = useCallback(() => {
const container = containerRef.current as HTMLElement;
if (!container) return;
transformData();
renderSVG();
renderArc();
renderDataTitle();
renderLegendLines();
renderLegendMarkers();
}, [
renderArc,
renderSVG,
renderDataTitle,
transformData,
renderLegendLines,
renderLegendMarkers,
]);
useEffect(() => {
containerRef.current !== null && renderFunc();
}, [renderFunc]);
const resizeHandler = useCallback(() => {
containerRef.current !== null && renderFunc();
}, [renderFunc]);
useResizeObserver(containerRef, resizeHandler);
return <div ref={containerRef}></div>;
};
export default ChartUtil;