点聚合

使用 Leaflet.markercluster 插件实现，仓库地址。

示例

安装依赖

pnpm install leaflet.markercluster

# ts 项目需要安装类型文件
pnpm install @types/leaflet.markercluster

在项目中引入

import "leaflet.markercluster";
import "leaflet.markercluster/dist/MarkerCluster.Default.css";
import "leaflet.markercluster/dist/MarkerCluster.css";

代码实现

index.vue

<script setup>
import { ref, defineAsyncComponent } from 'vue';
// todo 项目使用请放开注释
// import 'leaflet.markercluster';
import 'leaflet.markercluster/dist/MarkerCluster.Default.css';
import 'leaflet.markercluster/dist/MarkerCluster.css';

const InitMap = defineAsyncComponent(() =>
  import('../../components/InitMapTianditu.vue')
);

const mapObj = ref();

const markerLayerGroup = ref();

// 清除图层组图层
const clearMarkerLayerGroup = () => {
  if (markerLayerGroup.value) {
    mapObj.value.removeLayer(markerLayerGroup.value);
    markerLayerGroup.value = null;
  }
};

// 创建多个 marker
const createMarkers = () => {
  // 加载前先清除
  clearMarkerLayerGroup();

  // 创建点聚合图层
  markerLayerGroup.value = L.markerClusterGroup();

  const points = [
    [32.0148855, 118.8276675],
    [32.0138855, 118.8477675],
    [32.0138855, 118.8678675],
    [32.0138855, 118.8979675],
    [32.0148855, 118.8989675],
    [32.0148855, 118.8969675],
    [32.0148855, 118.8979675],
    [32.0148855, 118.8989675]
  ];

  points.forEach((item) => {
    // 创建自定义图标
    const icon = L.icon({
      iconUrl: 'https://leafletjs-example.vercel.app/logo.png',
      iconSize: [30, 30]
    });

    const marker = L.marker(item, { icon });

    // 添加
    markerLayerGroup.value.addLayers(marker);
  });

  // 为每个 marker 绑定 popup
  markerLayerGroup.value.bindPopup('<b>Hello world!</b><br />marker');

  // 绑定 marker 点击事件
  markerLayerGroup.value.on('click', (e) => {
    console.log('marker 触发点击事件', e);
  });

  // 绑定聚合点点击事件
  markerLayerGroup.value.on('clusterclick', (e) => {
    console.log('点击聚合点触发点击事件', e);
  });

  // 将图层组加载到地图
  markerLayerGroup.value.addTo(mapObj.value);
};

const mapLoad = (map) => {
  mapObj.value = map;
  createMarkers();
};
</script>

<template>
  <init-map @map-load="mapLoad"></init-map>
</template>

<style scoped></style>

InitMapTianditu.vue

<script setup>
import { onMounted, onUnmounted, ref } from 'vue';
// todo 项目使用请放开 leaflet 引入
// import L from 'leaflet';

const props = defineProps({
  center: {
    type: Array,
    default: [32.0237855, 118.8075675]
  }
})

const emit = defineEmits(['mapLoad']);

const mapRef = ref();

const initMap = () => {
  const map = L.map(mapRef.value, {
    center: props.center,
    zoom: 11,
    minZoom: 6,
    maxZoom: 20
  });

  const mapType = 'vec';
  L.tileLayer(
    'https://t{s}.tianditu.gov.cn/' +
      mapType +
      '_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=' +
      mapType +
      '&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILECOL={x}&TILEROW={y}&TILEMATRIX={z}&tk=b72aa81ac2b3cae941d1eb213499e15e',
    {
      subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
      attribution:
        '&copy; <a href="http://lbs.tianditu.gov.cn/home.html">天地图 GS(2022)3124号 - 甲测资字1100471</a>'
    }
  ).addTo(map);

  const mapLabelType = 'cva';
  L.tileLayer(
    'https://t{s}.tianditu.gov.cn/' +
      mapLabelType +
      '_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=' +
      mapLabelType +
      '&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILECOL={x}&TILEROW={y}&TILEMATRIX={z}&tk=b72aa81ac2b3cae941d1eb213499e15e',
    {
      subdomains: ['0', '1', '2', '3', '4', '5', '6', '7']
    }
  ).addTo(map);

  // 地图初始化完成发送事件
  emit('mapLoad', map);

  return map;
};

const mapObj = ref();

// 在 onMounted 中初始化地图
onMounted(() => {
  mapObj.value = initMap();
});

const removeMap = () => {
  if (mapObj.value) {
    mapObj.value.remove();
  }
};

// 在组件卸载时删除地图
onUnmounted(() => {
  removeMap();
});
</script>

<template>
  <div ref="mapRef" class="map"></div>
</template>

<style scoped>
.map {
  height: 40vh;
  z-index: 0;
}
</style>

贡献者

vaebe