mirror of https://gitee.com/antv-l7/antv-l7
109 lines
2.8 KiB
TypeScript
109 lines
2.8 KiB
TypeScript
// @ts-nocheck
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// @ts-ignore
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import { Scene, Source } from '@antv/l7';
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import { GeometryLayer } from '@antv/l7-layers';
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import { GaodeMap } from '@antv/l7-maps';
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import * as React from 'react';
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export default class Demo extends React.Component {
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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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center: [120.1025, 30.2594],
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style: 'dark',
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pitch: 65,
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rotation: 180,
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zoom: 14,
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}),
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});
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let currentZoom = 14,
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currentModelData = '100x100';
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scene.on('loaded', () => {
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const layer = new GeometryLayer().shape('plane').style({
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width: 0.074,
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height: 0.061,
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center: [120.1025, 30.2594],
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widthSegments: 100,
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heightSegments: 100,
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terrainClipHeight: 1,
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mapTexture:
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'https://gw.alipayobjects.com/mdn/rms_23a451/afts/img/A*gA0NRbuOF5cAAAAAAAAAAAAAARQnAQ',
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terrainTexture:
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'https://gw.alipayobjects.com/mdn/rms_23a451/afts/img/A*eYFaRYlnnOUAAAAAAAAAAAAAARQnAQ',
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rgb2height: (r, g, b) => {
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let h =
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-10000.0 +
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(r * 255.0 * 256.0 * 256.0 + g * 255.0 * 256.0 + b * 255.0) * 0.1;
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h = h / 20 - 127600;
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h = Math.max(0, h);
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return h;
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},
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});
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scene.addLayer(layer);
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let modelData10,
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modelData20 = null,
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modelData100;
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layer.on('terrainImageLoaded', () => {
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modelData10 = layer.createModelData([], {
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widthSegments: 10,
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heightSegments: 10,
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});
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modelData20 = layer.createModelData([], {
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widthSegments: 20,
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heightSegments: 20,
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});
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modelData100 = layer.createModelData([], {
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widthSegments: 100,
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heightSegments: 100,
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});
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});
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scene.on('zoom', ({ value }) => {
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const zoom = Math.floor(value);
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if (currentZoom !== zoom) {
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if (zoom > 13) {
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if (currentModelData !== '100x100') {
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layer.updateModelData(modelData100);
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currentModelData = '100x100';
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}
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} else if (zoom > 12) {
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if (currentModelData !== '20x20') {
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layer.updateModelData(modelData20);
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currentModelData = '20x20';
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}
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} else {
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if (currentModelData !== '10x10') {
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layer.updateModelData(modelData10);
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currentModelData = '10x10';
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}
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}
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currentZoom = zoom;
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}
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return '';
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});
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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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></div>
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);
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}
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}
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