mirror of https://gitee.com/antv-l7/antv-l7
74 lines
1.6 KiB
TypeScript
74 lines
1.6 KiB
TypeScript
import { LineLayer, Scene } from '@antv/l7';
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import { Mapbox } from '@antv/l7-maps';
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import * as React from 'react';
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export default class LineDemo 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 response = await fetch(
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'https://gw.alipayobjects.com/os/basement_prod/49a796db-944b-4c35-aa97-1015f0a407f1.json',
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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: [110.19382669582967, 40.258134],
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pitch: 0,
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zoom: 3,
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style: 'dark',
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}),
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});
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const data = await response.json();
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data.features = data.features.map((fe: any) => {
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if (fe.properties.saldo < 0) {
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fe.geometry.coordinates = fe.geometry.coordinates.reverse();
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}
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return fe;
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});
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const lineLayer = new LineLayer({
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blend: 'normal',
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});
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lineLayer
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.source(data)
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.shape('line')
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.size('saldo', [0.4, 0.8])
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.color('saldo', (v) => {
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return v < 0 ? 'rgb(60,255,255)' : 'rgb(255,255,60)';
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})
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// .color('red')
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.animate({
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enable: true,
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interval: 0.1,
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duration: 3,
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trailLength: 0.2,
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})
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.style({
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opacity: 1,
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})
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.render();
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lineLayer.fitBounds();
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scene.addLayer(lineLayer);
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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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