vue+openlayer实现：拖拽、旋转、缩放、拉伸、移动等功能以及对应的监听事件

胜意

这样地图上可编辑，可拖拽的功效，实现需要用到：

openlayer 是有他自己的扩展插件 ol-ext，我们这里用他来实现图形的操作：拖拽、旋转、缩放、拉伸、移动等等功能，以及他的监听事件，毕竟我们作图以后是需要保存数据给后端，存到数据库的。

js中引入具体配置，根据你的具体改，我这里放的是我自己的

ol有关：

import "ol/ol.css";
import View from "ol/View";
import Map from "ol/Map";
import TileLayer from "ol/layer/Tile";
import Overlay from "ol/Overlay";
import XYZ from "ol/source/XYZ";
import { Vector as SourceVec ,Cluster,Vector as VectorSource } from "ol/source";
import { Feature } from "ol";
import { Vector as LayerVec , Vector as VectorLayer } from "ol/layer";
import { Point, LineString, Polygon } from "ol/geom";
import {
    Style,
    Icon,
    Fill,
    Stroke,
    Text,
    Circle as CircleStyle,
  } from "ol/style";
  import { OSM, TileArcGISRest } from "ol/source";

ol-ext有关：

import ExtTransform from 'ol-ext/interaction/Transform'

实现地图方法

data() {
      return {
        map: null,
        center: [116.39702518856394, 39.918590567855425], //北京故宫的经纬度
        centerSize: 11.5,
        projection: "EPSG:4326",

mounted() {
  this.initMap()

methods: {
      //初始化地图
      initMap() {
        //渲染地图
        var layers = [
          //深蓝色背景
          // new TileLayer({
          //   source: new XYZ({
          //     url:
          //       "https://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}",
          //   }),
          // }),
          //初始化背景
          // new TileLayer({
          //   source: new OSM(),
          // })
          new TileLayer({
            title: "街道图",
            source: new XYZ({
              url: "http://localhost:8888/haoxing-map/sosomaps/roadmap/{z}/{x}/{y}.jpg",//zwh本地使用
        this.map = new Map({
          layers: layers,
          target: "map",
          view: new View({
            center: this.center,
            projection: this.projection,
            zoom: this.centerSize,
            maxZoom: 17,
            minZoom: 8,

地图上加上多边形数据

mounted() {
 this.initMap()
 this.createPolygon()

 methods: {    
    //创建多边形
    createPolygon() {
        //添加图层，并设置点范围
        const polygon = new Feature({
          geometry: new Polygon([
              [116.39314093500519,40.0217660530101],
              [116.47762344990831,39.921746523871924],
              [116.33244947314951,39.89892653421418],
              [116.30623076162784,40.00185925352143],
        //设置样式
        polygon.setStyle(new Style({
          stroke: new Stroke({
            width: 4,
            color: [255, 0, 0, 1],
        //将图形加到地图上
        this.map.addLayer(new VectorLayer({
          source: new VectorSource({
            features: [polygon],

地图上添加具体的操作方法和效果

mounted() {
  this.initMap()
  this.createPolygon()
  this.onEdit()

//操作事件
onEdit() {
   const transform = new ExtTransform({
       enableRotatedTransform: false,
       hitTolerance: 2,
       translate: true, // 拖拽
       stretch: false, // 拉伸
       scale: true, // 缩放
       rotate: true, // 旋转
       translateFeature: false,
       noFlip: true,
       // layers: [],
   this.map.addInteraction(transform)
  //开始事件
        transform.on(['rotatestart','translatestart'], function(e){
          // Rotation
          let startangle = e.feature.get('angle')||0;
          // Translation
          console.log(1111);
          console.log(startangle);
        transform.on('rotating', function (e){
          console.log(2222);
          console.log("rotate: "+((e.angle*180/Math.PI -180)%360+180).toFixed(2));
          console.log(e);
        transform.on('translating', function (e){
          console.log(3333);
          console.log(e.delta);
          console.log(e);
 //拖拽事件
        transform.on('scaling', function (e){
          console.log(4444);
          console.log(e.scale);
          console.log(e);
  //事件结束