KML

TIP

加载 KML 数据

代码如下:

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

<script lang="ts" setup>
import KML from "ol/format/KML";
import Map from "ol/Map";
import VectorSource from "ol/source/Vector";
import View from "ol/View";
import XYZ from "ol/source/XYZ";
import { Tile as TileLayer, Vector as VectorLayer } from "ol/layer";
import { onMounted, onBeforeUnmount } from "vue";
import { MAPURL, ATTRIBUTIONS } from "../../../constants";

const raster = new TileLayer({
  source: new XYZ({
    attributions: ATTRIBUTIONS,
    url: MAPURL,
    maxZoom: 20,
  }),
});

const vector = new VectorLayer({
  source: new VectorSource({
    url: "/kml/2022.kml",
    format: new KML(),
  }),
});

let map: Map | null = null;

onMounted(() => {
  map = new Map({
    layers: [raster, vector],
    target: "map",
    view: new View({
      center: [876970.8463461736, 5859807.853963373],
      projection: "EPSG:3857",
      zoom: 10,
    }),
  });
});

onBeforeUnmount(() => {
  if (map) {
    map.dispose();
    map = null;
  }
});
</script>

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