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中文文档:https://leafletjs.cn/reference.html
官网(英文):https://iclient.supermap.io/examples/leaflet/examples.html#iServer
项目地址 gitee:https://gitee.com/philippines-kisses-snow/leaflet-map
项目预览:http://116.204.74.170/leaflet/
建议在学习之前先了解一些相关名词,以便理解:
高德官网的名词解释:https://lbs.amap.com/api/javascript-api/guide/abc/components
效果:
npm i leaflet
// main.ts
import "leaflet/dist/leaflet.css"
import L from 'leaflet'
若引入时leaflet没有类型文件报错,需在.d.ts文件中加入:
// shims-vue.d.ts
declare module 'leaflet';
<div id="map"></div>
import { onMounted } from 'vue'; /* * layer: 地图切片地址,用于显示地图,该切片地址为高德地图使用的地址 * 具体出处在高德官网并未找到,从相关博客推测可能是某个大佬抓包或其他方式获取到的 * 相关博客:https://blog.csdn.net/fredricen/article/details/77189453 */ const layer = L.tileLayer('http://webrd01.is.autonavi.com/appmaptile?lang=zh_cn&size=1&scale=1&style=7&x={x}&y={y}&z={z}') let map: any = {} onMounted(() => { // 'map'为HTML节点id map = L.map('map', { center: [30.745922638363268, 104.00415658374735],//中心坐标 zoom: 10,//缩放级别 zoomControl: true, //缩放组件 attributionControl: false, //去掉右下角logol layers: [layer],//图层 }) })
效果:
map.setView([30.745922638363268, 104.00415658374735], 16)
效果:
5. 添加标记
(1)直接添加,官网当中是直接建立一个标记,并添加到地图(不推荐,不好管理)
L.marker([50.5, 30.5]).addTo(map);
(2)添加一个要素组,将标记添加到要素组里面管理(推荐)
// 添加标记组
let featureGroup: any = {}
featureGroup = L.featureGroup().addTo(map)
// 设置标记点:[纬度, 经度]
const marker = L.marker([30.745922638363268, 104.00415658374735])
featureGroup.addLayer(marker)
若标记后报错:
在引入时还需要独引入图片并更改默认Icon:
import L from 'leaflet' // 图片 import _ICON from 'leaflet/dist/images/marker-icon.png'; import _ICONSHADOW from 'leaflet/dist/images/marker-shadow.png'; /* * 测试过几组数据,当使用自定义icon时,若不配置iconSize、iconAnchor,图标会在放大地图时位置发送偏移 * iconAnchor:图标 "tip" 的坐标(相对于其左上角),该值大致为:[iconSize宽的一半,iconSize高] * iconAnchor需要在配置iconSize之后才会生效 * popupAnchor:标记的弹出框的位置(使用默认弹出框时需要 * popupAnchor若不配置,则默认为经纬度位置,会遮盖标记图标,-50表示将弹出框相对于经纬度位置向上移动50px */ let _L_DEFAULT_ICON = L.icon({ iconUrl: _ICON, shadowUrl: _ICONSHADOW, iconSize: [25, 41], iconAnchor: [12, 40], popupAnchor: [0, -50] }); L.Marker.prototype.options.icon = _L_DEFAULT_ICON
(3)给标记添加事件与弹出框-bindPopup(只支持简单添加)
// 给标记添加事件
marker.on('click', () => { })
// 给标记添加弹出框
marker.bindPopup('弹出内容').openPopup();
(4)给标记添加事件与弹出框-popup(高级用法)
marker.on('click', () => {
// 可在点击标记后发起请求,请求成功后弹出框显示请求内容
// 创建弹出框:弹出框默认从经纬度位置弹出,会遮盖图标,可使用offset设置偏移量:[x轴偏移量, y轴偏移量]
L.popup({ offset: [0, -50] })
.setLatLng(marker.getLatLng()) //设置弹出框弹出位置
.setContent('请求内容')
.openOn(map);
})
if(featureGroup) featureGroup.clearLayers();
// 再添加一个要素组,要素组可存在多个
let lineFeatureGroup: any = {}
lineFeatureGroup = L.featureGroup().addTo(map)
const locations = [
[30.745922638363268, 104.00415658374735],
[30.725309888823382, 104.03297424316408]
]
var polyline = L.polyline(locations, {color: 'red'}).addTo(map);
lineFeatureGroup.addLayer(polyline)
if(lineFeatureGroup) lineFeatureGroup.clearLayers();
<template> <div class="hello"> <div id="map"></div> <div class="controls"> <div class="fc"> 地图点击: <input type="radio" name="mapclick" :value="1" v-model="mapClick">开 <input class="ml15" type="radio" name="mapclick" :value="0" v-model="mapClick">关 </div> </div> </div> </template> <script setup lang="ts"> import L from 'leaflet' import { onMounted, ref } from 'vue'; import _ICON from 'leaflet/dist/images/marker-icon.png'; import _ICONSHADOW from 'leaflet/dist/images/marker-shadow.png'; /* * 测试过几组数据,当使用自定义icon时,若不配置iconSize、iconAnchor,图标会在放大地图时位置发送偏移 * iconAnchor:图标 "tip" 的坐标(相对于其左上角),该值大致为:[iconSize宽的一半,iconSize高] * iconAnchor需要在配置iconSize之后才会生效 * popupAnchor:标记的弹出框的位置(使用默认弹出框时需要 * popupAnchor若不配置,则默认为经纬度位置,会遮盖标记图标,-50表示将弹出框相对于经纬度位置向上移动50px */ let _L_DEFAULT_ICON = L.icon({ iconUrl: _ICON, shadowUrl: _ICONSHADOW, iconSize: [25, 41], iconAnchor: [12, 40], popupAnchor: [0, -50] }); L.Marker.prototype.options.icon = _L_DEFAULT_ICON const locations = [[30.745922638363268, 104.00415658374735], [30.725309888823382, 104.03297424316408]] const layer = L.tileLayer('http://webrd01.is.autonavi.com/appmaptile?lang=zh_cn&size=1&scale=1&style=7&x={x}&y={y}&z={z}') const mapClick = ref(1) let map: any = {} let featureGroup: any = {} let lineFeatureGroup: any = {} onMounted(() => { // 初始化地图 map = L.map('map', { center: [30.745922638363268, 104.00415658374735],//中心坐标 zoom: 10,//缩放级别 zoomControl: true, //缩放组件 attributionControl: false, //去掉右下角logol layers: [layer],//图层 }) // 将视图点位到指定点,并放大16倍 map.setView([30.745922638363268, 104.00415658374735], 16) // 地图点击 map.on('click', (e: any) => { if(mapClick.value) { const latlng = e.latlng locations.push([latlng.lat, latlng.lng]) // 清除要素 if(featureGroup) featureGroup.clearLayers(); locations.forEach(item => { point(item) }) } }) // 添加地图要素组 featureGroup = L.featureGroup().addTo(map) lineFeatureGroup = L.featureGroup().addTo(map) // 设置初始打点 locations.forEach(item => { point(item) }) setPolyLine() }) const point = (arr: number[]) => { // 设置点标记:[纬度, 经度] const marker = L.marker(arr) // 给标记添加事件 marker.on('click', () => { // 创建弹出框:弹出框默认从经纬度位置弹出,会遮盖图标,可使用offset设置偏移量:[x轴偏移量, y轴偏移量] L.popup({ offset: [0, -50] }) .setLatLng(marker.getLatLng()) .setContent(arr[0] + ': ' + arr[1]) .openOn(map); }) // 将标记添加到要素组 featureGroup.addLayer(marker) } const setPolyLine = () => { var polyline = L.polyline([locations[0], locations[1]], {color: 'red'}).addTo(map); lineFeatureGroup.addLayer(polyline) } </script> <style scoped> .hello, #map { height: 100%; width: 100%; } .hello { position: relative; } .controls { position: absolute; right: 0; top: 0; padding: 15px; z-index: 1000; font-size: 14px; background-color: #fff; } .fc { display: flex; align-items: center; } .ml15 { margin-left: 15px; } .mr15 { margin-right: 15px; } </style>
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