|
高德地图JS API 实例 亲测可用
参考网站=> 阿里云数据可视化平台(下载json用的):http://datav.aliyun.com/portal/school/atlas/area_selector?spm=a2crr.23498931.0.0.685915dd8QQdlv
1.渲染地图
- const [initDataMap, setInitDataMap] = useState({
- centerCity: '拱墅区',
- defaultZoom: 12,
- centerPoint: { lng: 120.165533, lat: 30.329062 },
- });
- //初始化地图
- const initMap = () => {
- const { centerPoint } = initDataMap;
- const center = [centerPoint.lng, centerPoint.lat];
- const mzooms = [8, 19];
- const mzoom = 12;
- let map = new AMap.Map("AMapBox", {
- zoom: mzoom, //初始化地图层级
- zooms: mzooms,
- rotateEnable: false, // 固定视角
- disableSocket: true,
- center: center,
- });
- mapRef.current = map;
- addAreaCoordinate(map); // 这个是渲染块
- };
复制代码 2.绘制Marker标记点
- // 绘制点
- const drawMarker = (data: any, map: any) => {
- const infoWindow = new AMap.InfoWindow({
- offset: new AMap.Pixel(5, -30),
- autoMove: true,
- closeWhenClickMap: true,
- });
- let ap: any = []
- data.forEach((item: any) => {
- if (item.lat && item.lng) {
- const ad = [item.lng, item.lat];
- const marker = new AMap.Marker({
- position: ad,
- icon: iconIMg, // 自己的icon
- map: map
- });
- ap.push(marker);
- setMarkerList(ap);
- const content = item.projectName;
- marker.on('click', () => {
- infoWindow.setContent(content);
- infoWindow.open(map, ad);
- });
- }
- });
- map.setFitView();
- }
复制代码 3.绘制线段Polyline
- // 绘制线段
- const polylineInit = (lineArr: any, map: any, callBack: any) => {
- const infoWindowLine = new AMap.InfoWindow({
- offset: new AMap.Pixel(5, -30),
- autoMove: true,
- closeWhenClickMap: true,
- });
- const polyline = new AMap.Polyline({
- path: lineArr.list, //设置线覆盖物路径
- strokeColor: "#3366FF", //线颜色
- strokeOpacity: 1, //线透明度
- strokeWeight: 5, //线宽
- strokeStyle: "solid", //线样式
- strokeDasharray: [10, 5] //补充线样式
- });
- polyline.setMap(map);
- callBack(polyline);
- const content = `
-
- ${lineArr.roadName}
- 所属国企:${lineArr.belongCorpName}
- 当前进度:${lineArr.currentStatusStr}
- <a onclick="handleClickDetail(${lineArr.id})">查看详情信息</a>
-
- `
- if (callBackDetail) {
- polyline.on('click', (e: any) => {
- infoWindowLine.setContent(content);
- infoWindowLine.open(map, e.lnglat);
- });
- }
- }
- // 处理绘制线段 可不看嘎嘎···
- const dealPolylineInit = (arr: any, map: any) => {
- // map.clearMap();
- map.remove(polylineList);
- let ad: any = [];
- arr.forEach((item: any) => {
- const st = JSON.parse(item.locationMark);
- st.forEach((element: any) => {
- element.forEach((ele: any) => {
- ele.roadName = item.roadName;
- ele.belongCorpName = item.belongCorpName;
- ele.currentStatusStr = item.currentStatusStr;
- ele.id = item.roadId;
- });
- });
- ad.push(st);
- });
- const flatArr = ad.flat();
- const cloneDeepData = cloneDeep(flatArr);
- const opd: any = [];
- cloneDeepData.forEach((item: any) => {
- let lineArr: any = [];
- const obj: any = {};
- item.forEach((element: any) => {
- const ad = [element.lng, element.lat];
- obj.roadName = element.roadName;
- obj.belongCorpName = element.belongCorpName;
- obj.currentStatusStr = element.currentStatusStr;
- obj.id = element.id
- lineArr.push(ad);
- });
- obj.list = lineArr;
- polylineInit(obj, map, (v: any) => {
- opd.push(v)
- });
- })
- setPolylineList(opd)
- }
复制代码 4.绘制区域Polygon
- const addAreaCoordinate = (map: any) => {
- const obj = gs_json || '';
- const points: any[] = [];
- obj?.features[0]?.geometry?.coordinates[0][0].map((item: any) => {
- points.push(new AMap.LngLat(item[0], item[1]));
- });
- const polygon = new AMap.Polygon({
- path: points,
- color: '#1CB9FF',
- weight: 3,
- opacity: 0.5,
- fillColor: '#1CB9FF',
- fillOpacity: 0.05,
- });
- map.add(polygon);
- map.setFitView(polygon);//视口自适应
- }
复制代码 5.完整的代码------(react写的,但不影响cv)
- import React, { useRef, forwardRef, useImperativeHandle, useEffect, useState } from 'react';//antd// 第三方组件//@ts-ignoreimport AMap from 'AMap';import { cloneDeep } from 'lodash';import gs_json from '@/assets/json/gongshu.json'; // 地图区域的json数据import iconIMg from '@/assets/productizationimg/local.png'const AMapModal = forwardRef((props: any, ref: any) => { const { roadMapData, projectMapData, isShowLanLat, callBackDetail } = props; const mapRef = useRef(); const [markerList, setMarkerList] = useState([]); const [polylineList, setPolylineList] = useState([]); const [initDataMap, setInitDataMap] = useState({ centerCity: '拱墅区', defaultZoom: 12, centerPoint: { lng: 120.165533, lat: 30.329062 }, }); //@ts-ignore window.document.handleClickDetail = function (id: any) { if (callBackDetail) { callBackDetail(id); } }; // 根据levelCode向地图中画一个区域轮廓 const addAreaCoordinate = (map: any) => {
- const obj = gs_json || '';
- const points: any[] = [];
- obj?.features[0]?.geometry?.coordinates[0][0].map((item: any) => {
- points.push(new AMap.LngLat(item[0], item[1]));
- });
- const polygon = new AMap.Polygon({
- path: points,
- color: '#1CB9FF',
- weight: 3,
- opacity: 0.5,
- fillColor: '#1CB9FF',
- fillOpacity: 0.05,
- });
- map.add(polygon);
- map.setFitView(polygon);//视口自适应
- } // 绘制点 const drawMarker = (data: any, map: any) => { const infoWindow = new AMap.InfoWindow({ offset: new AMap.Pixel(5, -30), autoMove: true, closeWhenClickMap: true, }); let ap: any = [] data.forEach((item: any) => { if (item.lat && item.lng) { const ad = [item.lng, item.lat]; const marker = new AMap.Marker({ position: ad, icon: iconIMg, map: map }); ap.push(marker); setMarkerList(ap); const content = item.projectName; marker.on('click', () => { infoWindow.setContent(content); infoWindow.open(map, ad); }); } }); map.setFitView(); } // 绘制线段 const polylineInit = (lineArr: any, map: any, callBack: any) => { const infoWindowLine = new AMap.InfoWindow({ offset: new AMap.Pixel(5, -30), autoMove: true, closeWhenClickMap: true, }); const polyline = new AMap.Polyline({ path: lineArr.list, //设置线覆盖物路径 strokeColor: "#3366FF", //线颜色 strokeOpacity: 1, //线透明度 strokeWeight: 5, //线宽 strokeStyle: "solid", //线样式 strokeDasharray: [10, 5] //补充线样式 }); polyline.setMap(map); callBack(polyline); const content = ` ${lineArr.roadName} 所属国企:${lineArr.belongCorpName} 当前进度:${lineArr.currentStatusStr} [url=http://bbs.itdo.tech/]查看详情信息[/url] ` if (callBackDetail) { polyline.on('click', (e: any) => { infoWindowLine.setContent(content); infoWindowLine.open(map, e.lnglat); }); } } // 处理绘制线段 const dealPolylineInit = (arr: any, map: any) => { // map.clearMap(); map.remove(polylineList); // 清除线段的 let ad: any = []; arr.forEach((item: any) => { const st = JSON.parse(item.locationMark); st.forEach((element: any) => { element.forEach((ele: any) => { ele.roadName = item.roadName; ele.belongCorpName = item.belongCorpName; ele.currentStatusStr = item.currentStatusStr; ele.id = item.roadId; }); }); ad.push(st); }); const flatArr = ad.flat(); const cloneDeepData = cloneDeep(flatArr); const opd: any = []; cloneDeepData.forEach((item: any) => { let lineArr: any = []; const obj: any = {}; item.forEach((element: any) => { const ad = [element.lng, element.lat]; obj.roadName = element.roadName; obj.belongCorpName = element.belongCorpName; obj.currentStatusStr = element.currentStatusStr; obj.id = element.id lineArr.push(ad); }); obj.list = lineArr; polylineInit(obj, map, (v: any) => { opd.push(v) }); }) setPolylineList(opd) } const initMap = () => { const { centerPoint } = initDataMap; const center = [centerPoint.lng, centerPoint.lat]; const mzooms = [8, 19]; const mzoom = 12; let map = new AMap.Map("AMapBox", { zoom: mzoom, //初始化地图层级 zooms: mzooms, rotateEnable: false, // 固定视角 disableSocket: true, center: center, }); mapRef.current = map; addAreaCoordinate(map); }; useEffect(() => { initMap(); }, []); // 地图道路线更新 useEffect(() => { dealPolylineInit(roadMapData, mapRef.current); }, [roadMapData]); // 地图点更新 useEffect(() => { if (isShowLanLat == 1) { drawMarker(projectMapData, mapRef.current); } else { if (mapRef.current) { mapRef.current.remove(markerList);// 清除markerList点位 } } }, [isShowLanLat, projectMapData]); return ( );})export default AMapModal
复制代码
来源:https://www.cnblogs.com/dreamtt/p/17173262.html
免责声明:由于采集信息均来自互联网,如果侵犯了您的权益,请联系我们【E-Mail:cb@itdo.tech】 我们会及时删除侵权内容,谢谢合作! |
|