Vue2+OpenLayers实现点位拖拽功能（提供Gitee源码）

一、案例截图

二、安装OpenLayers库

三、代码实现

3.1、初始化变量

3.2、创建一个点

3.3、将点添加到地图上

3.4、实现点位拖拽

3.5、完整代码

四、Gitee源码

一、案例截图

可以随意拖拽点位到你想要的位置

二、安装OpenLayers库

npm install ol

三、代码实现

3.1、初始化变量

关键代码：

data() {return {map:null,vectorLayer:null,}
},

3.2、创建一个点

关键代码：

createPoint(coordinate){// 创建feature要素，一个feature就是一个点坐标信息let feature = new Feature({geometry: new Point(coordinate),});// 设置要素的图标feature.setStyle(new Style({// 设置图片效果image: new Icon({src: 'http://lbs.tianditu.gov.cn/images/bus/end.png',scale: 1,}),zIndex: 10}),);return feature;
},

3.3、将点添加到地图上

关键代码：

let feature = this.createPoint([113.082753,28.180449]);
const vectorSource = new VectorSource({features: [feature],
});
this.vectorLayer = new VectorLayer({source: vectorSource,
});
this.map.addLayer(this.vectorLayer);

3.4、实现点位拖拽

关键代码：

addDraggableInteraction(feature) {// 创建可拖拽的交互const translate = new Translate({features: new Collection([feature]),});// 添加交互到地图this.map.addInteraction(translate);// Marker 1 拖拽事件translate.on('translatestart', (evt) => {console.log("当前经纬度信息："+evt.coordinate)});translate.on('translating', (evt) => {console.log("当前经纬度信息："+evt.coordinate)});},

3.5、完整代码

<template><div id="map-container"></div>
</template>
<script>
import { Map, View } from 'ol'
import { Tile as TileLayer } from 'ol/layer'
import { get } from 'ol/proj';
import { getWidth, getTopLeft } from 'ol/extent'
import { WMTS } from 'ol/source'
import WMTSTileGrid from 'ol/tilegrid/WMTS'
import { defaults as defaultControls} from 'ol/control';
import { Vector as VectorLayer } from 'ol/layer';
import VectorSource from 'ol/source/Vector';
import Feature from 'ol/Feature';
import Point from 'ol/geom/Point';
import {Circle, Fill, Icon, Stroke, Style} from 'ol/style';
import 'ol/ol.css';
import Select from 'ol/interaction/Select';
import { OSM } from 'ol/source';
import { LineString } from 'ol/geom';
import Translate from 'ol/interaction/Translate';
import { Collection } from 'ol';export const projection = get("EPSG:4326");
const projectionExtent = projection.getExtent();
const size = getWidth(projectionExtent) / 256;
const resolutions = [];
for (let z = 0; z < 19; ++z) {resolutions[z] = size / Math.pow(2, z);
}export default {data() {return {map:null,vectorLayer:null,}},mounted(){this.initMap() // 加载矢量底图},methods:{initMap() {const KEY = '你申请的KEY'this.map = new Map({target: 'map-container',layers: [// 底图new TileLayer({source: new WMTS({url: `http://t{0-6}.tianditu.com/vec_c/wmts?tk=${KEY}`,layer: 'vec', // 矢量底图matrixSet: 'c', // c: 经纬度投影 w: 球面墨卡托投影style: "default",crossOrigin: 'anonymous', // 解决跨域问题 如无该需求可不添加format: "tiles", //请求的图层格式，这里指定为瓦片格式wrapX: true, // 允许地图在 X 方向重复（环绕）tileGrid: new WMTSTileGrid({origin: getTopLeft(projectionExtent),resolutions: resolutions,matrixIds: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15','16','17','18']})})}),// 标注new TileLayer({source: new WMTS({url: `http://t{0-6}.tianditu.com/cva_c/wmts?tk=${KEY}`,layer: 'cva', //矢量注记matrixSet: 'c',style: "default",crossOrigin: 'anonymous',format: "tiles",wrapX: true,tileGrid: new WMTSTileGrid({origin: getTopLeft(projectionExtent),resolutions: resolutions,matrixIds: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15','16','17','18']})})})],view: new View({center: [113.082753,28.180449],projection: projection,zoom: 12,maxZoom: 17,minZoom: 1}),//加载控件到地图容器中controls: defaultControls({zoom: false,rotate: false,attribution: false})});let feature = this.createPoint([113.082753,28.180449]);const vectorSource = new VectorSource({features: [feature],});this.vectorLayer = new VectorLayer({source: vectorSource,});this.map.addLayer(this.vectorLayer);this.addDraggableInteraction(feature);},createPoint(coordinate){// 创建feature要素，一个feature就是一个点坐标信息let feature = new Feature({geometry: new Point(coordinate),});// 设置要素的图标feature.setStyle(new Style({// 设置图片效果image: new Icon({src: 'http://lbs.tianditu.gov.cn/images/bus/end.png',scale: 1,}),zIndex: 10}),);return feature;},addDraggableInteraction(feature) {// 创建可拖拽的交互const translate = new Translate({features: new Collection([feature]),});// 添加交互到地图this.map.addInteraction(translate);// Marker 1 拖拽事件translate.on('translatestart', (evt) => {console.log("当前经纬度信息："+evt.coordinate)});translate.on('translating', (evt) => {console.log("当前经纬度信息："+evt.coordinate)});},}
}
</script>
<style scoped>
#map-container {width: 100%;height: 100vh;
}
</style>