| |
|
|
| import * as React from "react"; |
| import { |
| ComposableMap, |
| ZoomableGroup, |
| Geographies, |
| Geography, |
| } from "react-simple-maps"; |
| import data from "./data/world-50m.json"; |
| import { scaleLinear } from "d3-scale"; |
|
|
| const wrapperStyles = { |
| width: "100%", |
| height: "auto", |
| maxWidth: "100%", |
| margin: "0 auto", |
| fontFamily: "Roboto, sans-serif", |
| }; |
|
|
| type State = { |
| origin: { x: number, y: number }, |
| content: string, |
| }; |
|
|
| const popScale = scaleLinear() |
| .domain([0, 100000000, 1400000000]) |
| .range(["#CFD8DC", "#607D8B", "#37474F"]); |
|
|
| class ReactSimpleMap extends React.PureComponent<void, State> { |
| state = { |
| origin: { x: 0, y: 0 }, |
| content: "", |
| }; |
|
|
| handleMove = ( |
| geography: { properties: { name: string, pop_est: string } }, |
| evt: SyntheticMouseEvent<> |
| ): void => { |
| const x = evt.clientX; |
| const y = evt.clientY + window.pageYOffset; |
| this.setState({ |
| origin: { x, y }, |
| content: geography.properties.name + ": " + geography.properties.pop_est, |
| }); |
| }; |
|
|
| handleLeave = (): void => { |
| this.setState({ content: "" }); |
| }; |
|
|
| render() { |
| return ( |
| <div style={wrapperStyles}> |
| {this.state.content && ( |
| <div |
| style={{ |
| position: "fixed", |
| top: this.state.origin.y + 20 - window.scrollY, |
| left: this.state.origin.x, |
| zIndex: 999999, |
| textAlign: "center", |
| border: "1px grey solid", |
| borderRadius: 3, |
| padding: 4, |
| backgroundColor: "#fff", |
| }} |
| > |
| {this.state.content} |
| </div> |
| )} |
| <ComposableMap |
| projectionConfig={{ |
| scale: 205, |
| rotation: [-11, 0, 0], |
| }} |
| style={{ |
| width: "100%", |
| height: "auto", |
| }} |
| width={900} |
| > |
| <ZoomableGroup center={[0, 20]}> |
| <Geographies geography={data}> |
| {(geographies, projection) => |
| geographies.map((geography, i) => ( |
| <Geography |
| key={i} |
| geography={geography} |
| projection={projection} |
| onMouseMove={this.handleMove} |
| onMouseLeave={this.handleLeave} |
| style={{ |
| default: { |
| fill: popScale(geography.properties.pop_est), |
| stroke: "#607D8B", |
| strokeWidth: 0.75, |
| outline: "none", |
| }, |
| hover: { |
| fill: "#263238", |
| stroke: "#607D8B", |
| strokeWidth: 0.75, |
| outline: "none", |
| }, |
| pressed: { |
| fill: "#263238", |
| stroke: "#607D8B", |
| strokeWidth: 0.75, |
| outline: "none", |
| }, |
| }} |
| /> |
| )) |
| } |
| </Geographies> |
| </ZoomableGroup> |
| </ComposableMap> |
| </div> |
| ); |
| } |
| } |
|
|
| export default ReactSimpleMap; |
|
|
