KML

TIP

加载 KML 数据

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 "leaflet-kml";
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: [36.148, -112.335],
    //最小显示等级
    minZoom: 1,
    //最大显示等级
    maxZoom: 18,
    //当前显示等级
    zoom: 15,
  });
  //加载图层
  L.tileLayer(MAPURL, {
    noWrap: true,
    attribution: ATTRIBUTIONS,
  }).addTo(map);

  //加载KML，需指定KML数据的路径
  fetch("/kml/KML_Samples.kml")
    .then((res) => res.text())
    .then((kmltext) => {
      if (map === null) return;
      const parser = new DOMParser();
      const kml = parser.parseFromString(kmltext, "text/xml");
      // @ts-ignore
      const track = new L.KML(kml);
      map.addLayer(track);
    });
};
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;
}
</style>

参考文档:

leaflet-kml