效果

    <baidu-map
      class="map"
      :center="mapCenter"
      :zoom="mapZoom"
      :scroll-wheel-zoom="true"
      @ready="onMapReady"
    >
    </baidu-map>



    /**
     * @Event 方法
     * @description: 获取地图实例，并添加事件监听器
     * */
    onMapReady(map) {
      this.map = map.map;
      // console.log(map);
      this.map.addEventListener("dragend", this.getVisibleAreaPoints); // 停止拖拽地图时触发
      this.map.addEventListener("zoomend", this.getVisibleAreaPoints); // 地图更改缩放级别结束时触发触发此事件
    },


    /**
     * @Event 方法
     * @description: 获取可视区坐标
     * */
    getVisibleAreaPoints() {
      // 当地图拖动结束后，获取地图的可视区坐标范围
      const bounds = this.map.getBounds();
      // 获取地图可视区域四个角的经纬度坐标
      const northEast = bounds.getNorthEast();
      const southEast = new BMap.Point(
        northEast.lng,
        bounds.getSouthWest().lat
      );
      const northWest = new BMap.Point(
        bounds.getSouthWest().lng,
        northEast.lat
      );
      const southWest = bounds.getSouthWest();
      console.log("东北角的坐标：", northEast);
      console.log("东南角的坐标：", southEast);
      console.log("西北角的坐标：", northWest);
      console.log("西南角的坐标：", southWest);
      this.visibleAreaPoints = { northEast, southEast, northWest, southWest };
    },