‘lijianhao’
2 years ago
4 changed files with 305 additions and 49 deletions
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import React, { Component } from 'react' |
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import PropTypes from 'prop-types' |
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import { geoJson } from './mock_data'; |
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export default class Bounds extends Component { |
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constructor(props) { |
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super(props); |
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this.map = props.map; |
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this.pl = {}; |
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this.textMarker = {}; |
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} |
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static propTypes = { |
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prop: PropTypes |
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} |
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componentDidMount() { |
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if (!window.BoundPl) { |
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this.drawBounds(); |
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} |
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} |
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componentWillUnmount() { |
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if (window.local_) |
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window.local_.remove(this.pl); |
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this.textMarker = null; |
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window.BoundPl = null; |
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} |
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drawBounds = () => { |
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var map = this.map; |
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var loca = window.local_; |
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loca.ambLight = { |
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intensity: 0.3, |
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color: '#fff', |
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}; |
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loca.dirLight = { |
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intensity: 0.6, |
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color: '#fff', |
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target: [0, 0, 0], |
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position: [0, -1, 1], |
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}; |
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loca.pointLight = { |
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color: 'rgb(100,100,100)', |
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position: [120.24289, 30.341335, 20000], |
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intensity: 3, |
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// 距离表示从光源到光照强度为 0 的位置，0 就是光不会消失。
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distance: 50000, |
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}; |
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var geo = new Loca.GeoJSONSource({ |
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data: geoJson |
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}); |
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var colors = ['#04398c', '#04398c', '#0542a5'].reverse(); |
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var height = [500]; |
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var pl = new Loca.PolygonLayer({ |
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// loca,
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zIndex: 1, |
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opacity: 0.6, |
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// cullface: 'none',
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shininess: 10, |
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hasSide: true, |
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}); |
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pl.setSource(geo); |
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pl.setStyle({ |
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topColor: function (index, feature) { |
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var i = index % 3; |
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return colors[i]; |
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}, |
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sideColor: function (index, feature) { |
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return '#023890'; |
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}, |
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borderColor: function () { |
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return '#24dcf7' |
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}, |
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height: function (index, feature) { |
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return index == 0 ? height[0] : height[0] + index * 50; |
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}, |
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altitude: 0, |
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}); |
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loca.add(pl); |
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// 创建纯文本标记
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var text = new AMap.Text({ |
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text: '纯文本标记', |
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anchor: 'center', // 设置文本标记锚点
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draggable: true, |
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cursor: 'pointer', |
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angle: 0, |
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visible: false, |
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offset: [60, 60], |
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extData: 'bounds_text', |
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style: { |
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'padding': '5px 10px', |
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'margin-bottom': '1rem', |
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'border-radius': '.25rem', |
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'background-color': 'rgba(0,0,0,0.5)', |
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// 'width': '12rem',
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'border-width': 0, |
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'box-shadow': '0 2px 6px 0 rgba(255, 255, 255, .3)', |
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'text-align': 'center', |
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'font-size': '16px', |
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'color': '#fff', |
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}, |
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}); |
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// text.setMap(map);
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if (!this.textMarker) |
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map.add(text); |
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this.textMarker = text; |
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console.log(text) |
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// 拾取
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map.on('mousemove', (e) => { |
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var feat = pl.queryFeature(e.pixel.toArray()); |
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// if (!text) {
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map.add(text); |
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// text = this.textMarker;
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// }
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if (feat) { |
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text.show(); |
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text.setText(feat.properties.NAME); |
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text.setPosition(e.lnglat); |
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pl.setStyle({ |
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topColor: (index, feature) => { |
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if (feature === feat) { |
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return [19, 43, 77, 1]; |
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} |
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// var v = feature.properties.health * 100;
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var i = index % 3; |
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return colors[i]; |
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}, |
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sideColor: (index, feature) => { |
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if (feature === feat) { |
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return '#023890'; |
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} |
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return '#023890'; |
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}, |
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borderColor: function () { |
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return '#24dcf7' |
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}, |
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height: function (index, feature) { |
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return index == 0 ? height[0] : height[0] + index * 50; |
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}, |
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}); |
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} else { |
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pl.setStyle({ |
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topColor: function (index, feature) { |
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var i = index % 3; |
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return colors[i]; |
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}, |
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sideColor: function (index, feature) { |
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return '#023890'; |
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}, |
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borderColor: function () { |
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return '#24dcf7' |
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}, |
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height: function (index, feature) { |
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return index == 0 ? height[0] : height[0] + index * 50; |
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}, |
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altitude: 0, |
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}); |
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text.hide(); |
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map.remove(text); |
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} |
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}); |
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map.setZoom(11) |
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map.setCenter([115.912663,28.543149]); |
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map.setRotation(-68.7); |
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map.setPitch(42); |
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this.pl = pl; |
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window.BoundPl = pl; |
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} |
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render() { |
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return ( |
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<div> |
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</div> |
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) |
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} |
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} |
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@ -0,0 +1,53 @@ |
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import React, { useEffect, useState } from 'react'; |
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import { connect } from 'react-redux'; |
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import Bounds from './bounds'; |
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const MAPID = 'screenGis' |
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const Gis = (props) => { |
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const [mapObj, setMapObj] = useState(); |
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useEffect(() => { |
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if (AMap) loadMap(); |
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return () => { |
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if (window.local_) { |
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window.local_ = null |
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} |
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if (mapObj) |
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mapObj.clearMap(); |
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} |
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}, [true]) |
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const loadMap = () => { |
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const map = new AMap.Map(MAPID, { |
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resizeEnable: true, |
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center: [115.912663,28.543149],//地图中心点，初始定位加载显示楼块
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zoom: 15,//地图显示的缩放级别
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zooms: [10, 12], |
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pitch: 0, // 地图俯仰角度，有效范围 0 度- 83 度
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viewMode: '3D', // 地图模式
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mapStyle: 'amap://styles/fb26776387242721c2fc32e2cb1daccc', |
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}); |
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let windowOnload = false; |
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map.on('complete', function () { |
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if (!window.local_) { |
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window.local_ = new Loca.Container({ map }); |
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setMapObj(map); |
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} |
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}); |
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window.onload = function () { |
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windowOnload = true; |
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} |
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}; |
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return ( |
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<div style={{ position: 'absolute', width: '100%', backgroundColor: '#101824', height: '100%', minHeight: 700 }}> |
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<div id={MAPID} style={{ width: '100%', height: '100%', background: "#101824", minHeight: 700 }} /> |
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{mapObj ? <Bounds map={mapObj} /> : ''} |
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</div > |
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) |
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} |
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export default Gis |
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