mirror of https://gitee.com/antv-l7/antv-l7
98 lines
2.3 KiB
TypeScript
98 lines
2.3 KiB
TypeScript
import { HeatmapLayer, Scene } from '@antv/l7';
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import { GaodeMap, Mapbox } from '@antv/l7-maps';
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// @ts-ignore
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import * as React from 'react';
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export default class HeatMapLayerDemo extends React.Component {
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// @ts-ignore
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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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pitch: 8.5,
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center: [116.49434030056, 39.868073421167621],
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zoom: 13,
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}),
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});
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scene.on('loaded', () => {
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fetch(
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'https://gw.alipayobjects.com/os/basement_prod/c3f8bda2-081b-449d-aa9f-9413b779205b.json',
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)
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.then((res) => res.json())
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.then((data) => {
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const layer = new HeatmapLayer({
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autoFit: true,
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})
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.source(data, {
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parser: {
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type: 'json',
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x: 'lng',
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y: 'lat',
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},
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})
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.size('count', [0, 1])
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.shape('heatmap')
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// weight映射通道
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.style({
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intensity: 10,
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radius: 20,
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opacity: 1.0,
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rampColors: {
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colors: [
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'#2E8AE6',
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'#69D1AB',
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'#DAF291',
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'#FFD591',
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'#FF7A45',
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'#CF1D49',
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],
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positions: [0, 0.2, 0.4, 0.6, 0.8, 1.0],
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},
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});
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scene.addLayer(layer);
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setTimeout(() => {
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layer.style({
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rampColors: {
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colors: [
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'#fee5d9',
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'#fcbba1',
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'#fc9272',
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'#fb6a4a',
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'#de2d26',
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'#a50f15',
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],
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positions: [0, 0.2, 0.4, 0.6, 0.8, 1.0],
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},
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});
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scene.render();
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console.log('更新完成');
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}, 2000);
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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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<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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