openlayers获取地图点击位置的信息

2022-12-27  本文已影响0人  Spinach

1、地图点击事件

单击:

      /* 监听地图的单击事件,如果点击的是矢量元素则进行相关操作 */
      // selfMap.OlMap===map
      selfMap.OlMap.on('click', (evt) => {
        /* 检测视口中的矢量特征 */
        const featureInfo = selfMap.OlMap.forEachFeatureAtPixel(evt.pixel, (feature, layerVetor) => feature);
        console.log(featureInfo);
        if (featureInfo) {
          // console.log(featureInfo.get('point'));
          dkqj();
        }
      });

双击:

    // mapMode.ol===map
    mapMode.ol.on('dblclick', (a) => {
        /* // eslint-disable-next-line prefer-destructuring
        pointLngLat.latitude = a.frameState.extent[1];
        // eslint-disable-next-line prefer-destructuring
        pointLngLat.longitude = a.frameState.extent[0]; */
        const { extent } = a.frameState;
        /* 范围坐标 */
        geomWKT = `POLYGON((${extent[0]} ${extent[1]},${extent[0]} ${extent[3]},${extent[2]} ${extent[3]},${extent[2]} ${extent[1]},${extent[0]} ${extent[1]}))`;
        tolerance = mapMode.ol.getView().getResolution() * 4;
        getThemeTree();
        drawerVisible.value = !drawerVisible.value;
      });

2、特征要素选择Select

      /* 监听特征元素(消防报警点)的点击事件 */
      const select = new Select();
      selfMap.OlMap.addInteraction(select);
      select.on('select', (e) => {
         // console.log(e.selected[0].get('name')); //已选择的Feature的name属性
        const features = e.target.getFeatures().getArray();
        console.log(features);
        if (features.length > 0) {
          // const feature = features[0];
          console.log('点击特征元素');
          dkqj();
        }
      });
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