交互绘制图形

TIP

交互绘制图形示例。

代码如下:

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<template>
  <div id="map"></div>
</template>

<script lang="ts" setup>
import { onMounted, onBeforeUnmount } from "vue";
import L from "leaflet";
import "@geoman-io/leaflet-geoman-free";
import "@geoman-io/leaflet-geoman-free/dist/leaflet-geoman.css";
import { MAPURL, ATTRIBUTIONS } from "../../../constants";

let map: L.Map | null = null;
const initMap = () => {
  //地图容器
  map = L.map("map", {
    //参考坐标系
    crs: L.CRS.EPSG3857,
    //显示中心
    center: [22.548857, 114.064839],
    //当前显示等级
    zoom: 10,
    // 映射容器
    pmIgnore: false,
  });

  //加载图层
  L.tileLayer(MAPURL, {
    noWrap: true,
    attribution: ATTRIBUTIONS,
  }).addTo(map);

  // 加载交互绘制图形插件
  map.pm.addControls({
    position: "topleft",
    drawCircle: false,
  });

  // 修改插件默认语言为中文
  map.pm.setLang("zh");
};

onMounted(() => {
  initMap();
});

// 销毁地图
onBeforeUnmount(() => {
  if (map) {
    map.remove();
    map = null;
  }
});
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
#map {
  height: 650px;
  color: #3a3a3a;
}
</style>

参考文档:

leaflet-geoman-free