mirror of https://gitee.com/antv-l7/antv-l7
117 lines
2.7 KiB
TypeScript
117 lines
2.7 KiB
TypeScript
import { Scene } from '@antv/l7';
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import { CityLayer } from '@antv/l7-district';
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import { GaodeMap, Mapbox } from '@antv/l7-maps';
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import { Cascader } from 'antd';
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import * as React from 'react';
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export default class Country extends React.Component {
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public state = {
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options: [],
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};
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// @ts-ignore
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private scene: Scene;
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private cityLayer: CityLayer;
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public componentWillUnmount() {
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this.scene.destroy();
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}
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public async componentDidMount() {
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const res = await fetch(
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'https://gw.alipayobjects.com/os/bmw-prod/551e3ca6-6dad-421b-a8b4-b225e47f73ca.json',
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);
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const options = await res.json();
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this.setState({
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options,
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});
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const response = await fetch(
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'https://gw.alipayobjects.com/os/bmw-prod/149b599d-21ef-4c24-812c-20deaee90e20.json',
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);
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const provinceData = await response.json();
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const data = Object.keys(provinceData).map((key: string) => {
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return {
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code: parseInt(key),
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name: provinceData[key][0],
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pop: provinceData[key][2] * 1,
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};
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});
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const scene = new Scene({
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id: 'map',
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map: new Mapbox({
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center: [116.2825, 39.9],
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pitch: 0,
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style: 'blank',
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zoom: 3,
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minZoom: 3,
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maxZoom: 10,
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}),
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});
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scene.on('loaded', () => {
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this.cityLayer = new CityLayer(scene, {
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data,
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joinBy: ['adcode', 'code'],
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adcode: ['330000', '330100'],
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depth: 3,
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label: {
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field: 'NAME_CHN',
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textAllowOverlap: false,
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},
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bubble: {
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enable: true,
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color: {
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field: 'pop',
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values: [
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'#feedde',
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'#fdd0a2',
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'#fdae6b',
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'#fd8d3c',
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'#e6550d',
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'#a63603',
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],
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},
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},
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popup: {
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enable: true,
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Html: (props) => {
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return `<span>${props.NAME_CHN}:</span><span>${props.pop}</span>`;
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},
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},
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});
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});
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this.scene = scene;
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}
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public render() {
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return (
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<>
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<Cascader
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style={{
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width: 200,
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zIndex: 2,
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position: 'absolute',
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right: '10px',
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top: '10px',
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}}
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options={this.state.options}
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defaultValue={['330000', '330100']}
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onChange={this.handleProvinceChange}
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placeholder="Please select"
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/>
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<div
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id="map"
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style={{
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position: 'absolute',
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top: 0,
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left: 0,
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right: 0,
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bottom: 0,
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}}
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/>
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</>
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);
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}
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private handleProvinceChange = (value: string[]) => {
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this.cityLayer.updateDistrict([value[1]]);
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};
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}
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