console.log(`鼠标点击位置为:${click.position}`);

          var cartesian = that.viewer.scene.globe.pick(that.viewer.camera.getPickRay(click.position),that.viewer.scene);

          console.log(`世界坐标:${cartesian}`);

          // 世界坐标转换为弧度

          var ellipsoid = that.viewer.scene.globe.ellipsoid;

          var cartographic = ellipsoid.cartesianToCartographic(cartesian);

          console.log(`弧度:${cartographic}`);

          // 弧度转换为经纬度

          var lon = Cesium.Math.toDegrees(cartographic.longitude);  // 经度

          var lat = Cesium.Math.toDegrees(cartographic.latitude);   // 纬度

          console.log(`经度：${lon},纬度:${lat}`);

          console.log(height);

          // 创建label

          that.createOnlyLabel(lat,lon,height,info);

    createOnlyLabel(latitude,longitude,height,text){

      if(Cesium.defined(this.infoBoard)){

        console.log("Cesium.defined(this.infoBoard)");

        this.infoBoard.position = new Cesium.Cartesian3.fromDegrees(longitude, latitude,height);

        this.infoBoard.label.text = text;

        return;

      }

      //添加弹出信息

      var infoBoard = this.viewer.entities.add({

        // id:5,

        position:new Cesium.Cartesian3.fromDegrees(longitude, latitude,height),

        //设置朝向和翻滚角度

        // orientation:orientation,

        label: {

          //文字标签

          text: text,

          font: '500 30px Helvetica',// 15pt monospace

          scale: 0.8,

          style: Cesium.LabelStyle.FILL,

          fillColor: Cesium.Color.WHITE,

          // pixelOffset: new Cesium.Cartesian2(-8, -35),   //偏移量

          showBackground: true,

          backgroundColor: new Cesium.Color(0.5, 0.6, 1, 1.0)

        },

      })

      this.infoBoard = infoBoard;

    },

        console.log(`鼠标点击位置为:${click.position}`);

        console.log(`当前模型的bounding:${pickedFeature.content._tile.boundingSphere.center}`);