Question

已打开一个场景，想向场景中添加一个构造好的geobox对象，无法实现。代码如下，哪位大神看看毛病出在哪？

 private void button1_Click(object sender, EventArgs e)
        {
            AddGeoBox();
        }
        public void AddGeoBox()
        {
            // 构造 GeoBox 对象
            GeoBox geoBox = new GeoBox();
            // 设置长方体的底面大小
            geoBox.BottomSize = new Size2D(200, 100);
            // 设置长方体的高度
            geoBox.Height = 200;
            // 设置长方体所在的位置
            geoBox.Position = new Point3D(116.3871597841252, 39.99008027631623, 100);

            // 获取按 GeoModel 的方式重新构建的模型对象
            GeoModel geoModel = geoBox.GetGeoModel(100, 100);

            // 向跟踪图层上添加长方体
            m_sceneControl.Scene.TrackingLayer.Add(geoModel, "GeoBox");

            // 飞行定位到该长方体对象
            //m_sceneControl.Scene.Fly(geoModel, FlyingMode.FlyingTo);
            FlyToTarget();
        }
        public void FlyToTarget()
        {
            #region 创建相机

            Camera camera = new Camera();
            camera.Latitude = 115.5000232195;
            camera.Longitude = 39.49997640163;
            camera.Altitude = 3.25;
            camera.AltitudeMode = AltitudeMode.ClampToGround;
            camera.Heading = 34.847028793470777;
            camera.Tilt = 76.822802220392148;

            #endregion

            m_sceneControl.Scene.Fly(camera, 10);
            m_sceneControl.Scene.Refresh();
        }

Answer 1

您好，看看GeoModel对象是否为空对象，另外建议GeoBox转成GeoModel3D比较好

Comments

这个是否为空怎么看呢？

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断点调试，，看运行到断点时GeoModel的值为空，或者有具体的值