Question

public void NodeAnimation1()
        { 
        
          //读取一个模型文件
              geoModel = new GeoModel();
            //设置或获取三维位置，该位置为外外接长方体中心点位置（法1设想模型位置提前设置好，法2打开高铁模型，估计高铁外接长方体位置，由代码设置）
            //test5 
             geoModel.Position = new Point3D(116.381155556, 39.989522222, 0);
           // geoModel.Position = new Point3D(116.463347222, 39.906958333, 0);
           //3Ds/SGM创建三维模型对象
            
              geoModel.FromFile(@"F:\B16_GIS_1Class\test Model\test3\Box001.SGM");  
             //将模型添加到KML图层中
             Scene scene = m_sceneControl.Scene; 
            
             Layer3D layer = scene.Layers["test8"];
              layerKML = layer as Layer3DKML;
            //问题3：三维要素作用：Feature3D是三维要素类，只对KML图层有效。您要在KML图层中添加模型geoModel，就必须用Feature3D。
            Feature3D feature = layerKML.Features.Add(geoModel);
            //设置添加到KML图层中的模型的节点动画信息
            animationModel = feature.Geometry as GeoModel;
            ani= animationModel.NodeAnimation;
            //设置动画运行周期，单位秒长
            ani.Length =5.0;
            //设置动画播放模式
            ani.PlayMode = PlayMode.Once;
            //设置节点动画轨迹 test5
          
            Point3Ds pts = new Point3Ds();
            Point3D pt = new Point3D(116.381163889, 39.989769444, 0);
            pts.Add(pt);
            //坐标和距离换算
            pt.X = 116.381163889;
            pt.Y = 39.990922222;
            pts.Add(pt);
            pt.X = 116.381163889;
            pt.Y = 39.991591666;
            pts.Add(pt);
            geoLine = new GeoLine3D(pts);
            ani.SetTrack(geoLine);
            //启用节点动画
            ani.IsEnabled = true;
            
          
            
           //添加该句后，每运行一次代码后，模型将在KML图层添加一次。
            //layerKML.Features.ToKMLFile(@"F:\B16_GIS_1Class\test Model\test7.kml");
        
          }

Answer 1

您好！从您发的代码上看不出任何问题。您是运行到哪一句出现这个错误的呢？