mirror of https://gitee.com/antv-l7/antv-l7
87 lines
2.1 KiB
TypeScript
87 lines
2.1 KiB
TypeScript
import { LineLayer, PolygonLayer, Scene } from '@antv/l7';
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import { GaodeMap } from '@antv/l7-maps';
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import * as React from 'react';
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function convertRGB2Hex(rgb: number[]) {
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return (
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'#' + rgb.map((r) => ('0' + Math.floor(r).toString(16)).slice(-2)).join('')
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);
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}
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export default class UpdatePolygon extends React.Component {
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private gui: dat.GUI;
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private $stats: Node;
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private scene: Scene;
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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 scene = new Scene({
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id: 'map',
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map: new GaodeMap({
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style: 'dark',
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center: [104.288144, 31.239692],
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zoom: 4.4,
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}),
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});
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scene.on('loaded', async () => {
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// https://gw.alipayobjects.com/os/basement_prod/0d2f0113-f48b-4db9-8adc-a3937243d5a3.json
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const response = await fetch(
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'https://gw.alipayobjects.com/os/rmsportal/JToMOWvicvJOISZFCkEI.json',
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);
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const data = await response.json();
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const highlightLayer = new PolygonLayer({})
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.source({
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type: 'FeatureCollection',
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features: [],
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})
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.shape('fill')
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.color('red'); // 20% 透明度;
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const polygonLayer = new PolygonLayer({})
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.source(data)
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.shape('fill')
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.color('rgba(255,255,255,0.2)') // 20% 透明度
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.select({
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color: 'red', // 选中后的颜色同样会有透明度
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})
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.style({
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opacity: 1,
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});
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// polygonLayer.on('click', (e) => {
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// highlightLayer.setData({
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// type: 'FeatureCollection',
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// features: [e.feature],
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// });
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// });
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const lineLayer = new LineLayer({})
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.source(data)
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.shape('line')
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.size(1)
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.color('#0ffbc4');
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scene.addLayer(polygonLayer);
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scene.addLayer(highlightLayer);
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scene.addLayer(lineLayer);
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this.scene = scene;
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});
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}
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public render() {
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return (
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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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