Bubble - Scatter Chart
Code
ChartUtil.tsx
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"use client";
import { ChartProps } from "@/types";
import React, { useEffect, useCallback, useRef } from "react";
import { useResizeObserver } from "@/hooks/useResizeObserver";
import * as d3 from "d3";
const ChartUtil = ({ data }: ChartProps) => {
const containerRef = useRef<HTMLDivElement | null>(null);
const renderFunc = useCallback(async () => {
const container = containerRef.current as HTMLElement;
if (!container) return;
const margin = { top: 25, right: 25, bottom: 25, left: 25 },
width = container.offsetWidth - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
const svg = d3
.select(container)
.html("")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", `translate(${margin.left},${margin.top})`);
const x = d3.scaleLinear().domain([0, 16000]).range([0, width]);
svg
.append("g")
.attr("transform", `translate(0, ${height})`)
.call(d3.axisBottom(x))
.call((d) =>
d
.selectAll("text")
.attr("font-family", "Space Mono")
.attr("font-size", "12px")
);
const y = d3.scaleLinear().domain([35, 90]).range([height, 0]);
svg
.append("g")
.call(d3.axisLeft(y))
.call((d) =>
d
.selectAll("text")
.attr("font-family", "Space Mono")
.attr("font-size", "12px")
);
const z = d3.scaleLinear().domain([200000, 1310000000]).range([4, 40]);
const myColor = d3
.scaleOrdinal()
.domain(["Asia", "Europe", "Americas", "Africa", "Oceania"])
.range(d3.schemeSet2);
const tooltip = d3
.select(container)
.append("div")
.style("opacity", 0)
.attr("class", "tooltip")
.style("background-color", "#fff")
.style("border-radius", "5px")
.style("padding", "10px")
.style("color", "#000");
const showTooltip = function (event: any, d: any) {
tooltip.transition().duration(200);
tooltip
.style("opacity", 1)
.html("Country: " + d.country)
.style(
"left",
event.x - (tooltip.node() as HTMLElement).clientWidth / 2 + "px"
)
.style("top", event.y + 20 + "px")
.style("position", "absolute");
d3.select(event.target).attr("stroke", "#fff");
};
const moveTooltip = function (event: any) {
tooltip
.style(
"left",
event.x - (tooltip.node() as HTMLElement).clientWidth / 2 + "px"
)
.style("top", event.y + 20 + "px");
d3.select(event.target).attr("stroke", "#fff");
};
const hideTooltip = function (event: any) {
tooltip.transition().duration(200).style("opacity", 0);
d3.select(event.target).attr("stroke", "#000");
};
svg
.append("g")
.selectAll("dot")
.data(data)
.join("circle")
.attr("class", "bubbles")
.attr("cx", (d: any) => x(d.gdpPercap))
.attr("cy", (d: any) => y(d.lifeExp))
.attr("r", (d: any) => z(d.pop))
.attr("stroke", "#000")
.attr("stroke-width", 2)
.attr("fill", (d: any) => myColor(d.continent) as string)
// -3- Trigger the functions
.on("mouseover", showTooltip)
.on("mousemove", moveTooltip)
.on("mouseleave", hideTooltip);
}, [data]);
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;