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Vue+Openlayer使用overlay实现弹窗弹出显示与关闭

发布时间：2025/3/19 vue 38 豆豆

生活随笔收集整理的这篇文章主要介绍了 Vue+Openlayer使用overlay实现弹窗弹出显示与关闭小编觉得挺不错的,现在分享给大家,帮大家做个参考.

场景

Vue+Openlayers实现地图上绘制线：

Vue+Openlayers实现地图上绘制线_BADAO_LIUMANG_QIZHI的博客-CSDN博客

在上面的基础上实现点击地图，弹窗显示并获取点击处的坐标，并实现坐标转换经纬度。

效果

加载显示地图的流程

Vue中使用Openlayers加载Geoserver发布的TileWMS：

Vue中使用Openlayers加载Geoserver发布的TileWMS_BADAO_LIUMANG_QIZHI的博客-CSDN博客

注：

博客：
BADAO_LIUMANG_QIZHI的博客_霸道流氓气质_CSDN博客
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实现

1、页面上添加弹窗的元素

2、添加弹窗样式

3、导入相关模块

//导入基本模块 import "ol/ol.css"; import Map from "ol/Map"; import Overlay from "ol/Overlay"; import View from "ol/View"; import { Point,LineString } from "ol/geom"; import Feature from "ol/Feature"; import { Icon,Style,Stroke} from "ol/style"; //导入相关模块 import { Tile as TileLayer , Vector as VectorLayer } from 'ol/layer' import { TileWMS ,Vector as VectorSource } from 'ol/source' import { toStringHDMS } from "ol/coordinate"; import { toLonLat } from "ol/proj";

4、声明overlay与容器

overlay: null,container: null, // 弹框

5、在mounted中调用初始化地图的方法

mounted() {this.initMap();},

在方法中获取到弹窗的节点DOM

// 获取到弹框的节点DOMvar container = document.getElementById("popup");var content = document.getElementById("popup-content");var closer = document.getElementById("popup-closer");

然后创建一个弹窗Overlay对象

// 创建一个弹窗 Overlay 对象this.overlay = new Overlay({element: container, //绑定 Overlay 对象和 DOM 对象的autoPan: true, // 定义弹出窗口在边缘点击时候可能不完整设置自动平移效果autoPanAnimation: {duration: 250 //自动平移效果的动画时间 9毫秒}});

6、创建弹窗对象并将弹窗添加到地图中

this.map = new Map({//地图容器IDtarget: "map",//引入地图layers: [this.layer,this.lightLayer,this.houseLayer,this.lineLayer],view: new View({//地图中心点center: [987777.93778, 213834.81024],zoom: 12,minZoom:6, // 地图缩放最小级别maxZoom:19,rotation: 0.76}),});// 将弹窗添加到 map 地图中this.map.addOverlay(this.overlay);

7、监听地图的单击事件，在回调函数中获取坐标值并将内容赋值给dom

并且设置弹窗的位置就是当前鼠标点击的位置

// 将弹窗添加到 map 地图中this.map.addOverlay(this.overlay);//必须要重新赋值this,不然再回调函数中指针会变，overlay会undefinedlet _that = this;// 监听singleclick事件this.map.on('singleclick', function(e) {let coordinate = e.coordinate// 点击尺（这里是尺(米)，并不是经纬度）;let hdms = toStringHDMS(toLonLat(e.coordinate)); // 转换为经纬度显示content.innerHTML = `<p>你点击了这里：</p><p>经纬度：<p><code> ${hdms} </code> <p><p>坐标：</p>X：${coordinate[0]}    Y: ${coordinate[1]}`;_that.overlay.setPosition(coordinate); //把 overlay 显示到指定的 x,y坐标console.log(e.coordinate)})

8、这里尤其要注意的是，单击事件的回调方法中要对overplay设置其显示位置

这里不能再直接使用this.overplay.setPosition了，因为在回调函数中指针会变，

此时会提示overlay为undefined。所以先重新赋值再使用

let _that = this;_that.overlay.setPosition(coordinate); //把 overlay 显示到指定的 x,y坐标

7、设置弹窗关闭事件

将overlay对象的setPosition赋值为undefined即可隐藏。

//弹窗关闭事件closer.onclick=function(){_that.overlay.setPosition(undefined);closer.blur();return false;};

8、完整示例代码

<template><div id="app"><div id="map" class="map"></div><div id="popup" class="ol-popup"><a href="#" id="popup-closer" class="ol-popup-closer">X</a><div id="popup-content" class="popup-content"></div></div></div> </template><script> //导入基本模块 import "ol/ol.css"; import Map from "ol/Map"; import Overlay from "ol/Overlay"; import View from "ol/View"; import { Point,LineString } from "ol/geom"; import Feature from "ol/Feature"; import { Icon,Style,Stroke} from "ol/style"; //导入相关模块 import { Tile as TileLayer , Vector as VectorLayer } from 'ol/layer' import { TileWMS ,Vector as VectorSource } from 'ol/source' import { toStringHDMS } from "ol/coordinate"; import { toLonLat } from "ol/proj"; export default {name: "olMapImageWMSMulLayers",data() {return {map: null, // map地图layer:null, //地图图层lightLayer:null, //灯图层houseLayer:null, //房子图层lineLayer:null, //线图层lineSource:null, //线数据源overlay: null,container: null, // 弹框//红绿灯数据lightData:[{x:"987798.93778", y:"213885.81024"},{x:"987710.93778", y:"213810.81024"},],//房子数据houseData:[{x:"986610.93778", y:"213885.81024"},{x:"986510.93778", y:"213810.81024"},],//线的数据lineData:[[986434.4063822062, 215782.0959711917],[989701.5290279881,217149.84072807242],[990613.3107184113,215946.4192185118],],};},mounted() {this.initMap();setInterval(() => {this.initLightData();}, 1000)},methods: {//初始化红绿灯数据initLightData(){this.lightLayer.getSource().clear();this.lightData.forEach((item, index) => {var feature = new Feature({geometry: new Point([Number(item.x), Number(item.y)]),});let url = "images/light.png";const zoom = this.map.getView().getZoom();let style = new Style({image: new Icon({scale: 0.15 * (zoom -13) ,src: url,anchor: [0.48, 0.52],}),});feature.setStyle(style);this.lightLayer.getSource().addFeature(feature);});},//初始化房子数据initHouseData(){this.houseLayer.getSource().clear();this.houseData.forEach((item, index) => {var feature = new Feature({geometry: new Point([Number(item.x), Number(item.y)]),});let url = "images/house.png";let style = new Style({image: new Icon({scale: 0.3,src: url,anchor: [0.48, 0.52],}),});feature.setStyle(style);this.houseLayer.getSource().addFeature(feature);});},//画线drawLine(){let pointData = this.lineData; // 所有点位信息//下边来添加一线featurevar feature = new Feature({type: "lineStyle",geometry: new LineString(pointData // 线的坐标),});let color = 'green';let lineStyle = new Style({stroke: new Stroke({color: color,width: 4,}),});// 添加线的样式feature.setStyle(lineStyle);// 添加线的faturethis.lineSource.addFeature(feature);},initMap() {// 获取到弹框的节点DOMvar container = document.getElementById("popup");var content = document.getElementById("popup-content");var closer = document.getElementById("popup-closer");//地图图层this.layer = new TileLayer({source: new TileWMS({//不能设置为0，否则地图不展示。ratio: 1,url: "http://localhost:8000/geoserver/nyc/wms",params: {LAYERS: "nyc:nyc_roads",STYLES: "",VERSION: "1.1.1",tiled: true},serverType: "geoserver",}),});// 红绿灯的图层this.lightLayer = new VectorLayer({source: new VectorSource(),});//房子的图层this.houseLayer = new VectorLayer({source: new VectorSource(),});//线的图层this.lineSource = new VectorSource({ wrapX: false });this.lineLayer = new VectorLayer({source: this.lineSource,});// 创建一个弹窗 Overlay 对象this.overlay = new Overlay({element: container, //绑定 Overlay 对象和 DOM 对象的autoPan: true, // 定义弹出窗口在边缘点击时候可能不完整设置自动平移效果autoPanAnimation: {duration: 250 //自动平移效果的动画时间 9毫秒}});this.map = new Map({//地图容器IDtarget: "map",//引入地图layers: [this.layer,this.lightLayer,this.houseLayer,this.lineLayer],view: new View({//地图中心点center: [987777.93778, 213834.81024],zoom: 12,minZoom:6, // 地图缩放最小级别maxZoom:19,rotation: 0.76}),});// 将弹窗添加到 map 地图中this.map.addOverlay(this.overlay);//必须要重新赋值this,不然再回调函数中指针会变，overlay会undefinedlet _that = this;// 监听singleclick事件this.map.on('singleclick', function(e) {let coordinate = e.coordinate// 点击尺（这里是尺(米)，并不是经纬度）;let hdms = toStringHDMS(toLonLat(e.coordinate)); // 转换为经纬度显示content.innerHTML = `<p>你点击了这里：</p><p>经纬度：<p><code> ${hdms} </code> <p><p>坐标：</p>X：${coordinate[0]}    Y: ${coordinate[1]}`;_that.overlay.setPosition(coordinate); //把 overlay 显示到指定的 x,y坐标console.log(e.coordinate)})//弹窗关闭事件closer.onclick=function(){_that.overlay.setPosition(undefined);closer.blur();return false;};this.initLightData();this.initHouseData();this.drawLine();},}, }; </script><style scoped> .map {width: 100%;height: 800px; } .ol-popup {position: absolute;background-color: white;-webkit-filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.2));filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.2));padding: 15px;border-radius: 10px;border: 1px solid #cccccc;bottom: 12px;left: -50px; } .popup-content {width: 400px; } .ol-popup-closer {text-decoration: none;position: absolute;top: 2px;right: 8px; } </style>

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