vue+openlayers5学习总结（七）vue封装的一些功能

1.封装测量及拖拽geojson功能

vue中使用方法

   self.source = new VectorSource({
    wrapX: true });
    //var measurevector =measure.vector(self.source);
    var dragAndDropInteraction = new DragAndDrop({
   
      formatConstructors: [GPX, GeoJSON, IGC, KML, TopoJSON]
    });
    dragAndDropInteraction.on("addfeatures", function(event, mymap) {
   
      var vectorSource = new VectorSource({
   
        features: event.features
      });
      self.map.addLayer(
        new VectorLayer({
   
          renderMode: "image",
          source: vectorSource
        })
      );
      self.map.getView().fit(vectorSource.getExtent());
    });
    this.map = new Map({
   
      controls: mapcontrols,
      target: mapcontainer,
      interactions: defaultInteractions({
   constrainResolution: true, onFocusOnly: true}).extend([
        dragAndDropInteraction,
        new PinchZoom({
   
            constrainResolution: true 
          }),
        ]),
      layers: [

        new TileLayer({
   
          source: new OSM(),
          name: "世界地图(OSM瓦片)"
        }),
        measure.vector(self.source)
      ],
      view: myview
    });   


methods: {
   
//删除测量痕迹
    removemeasure(){
   
      measure.removemeasuretip(this);
      this.selected("None")