ArcGIS Engine 用SceneControl实现鼠标点击画3D点的例子

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1. ArcGIS Engine 用SceneControl实现鼠标点击画3D点的例子:
   
2. 
   
3. IPoint pt = new PointClass();
   
4. ISceneGraph pSG = SC1.SceneGraph;
   
5. ISceneViewer pSW = pSG.ActiveViewer;
   
6. object pOwner;
   
7. object pObject;
   
8. pSG.Locate(pSW, e.x, e.y, esriScenePickMode.esriScenePickAll, true, out pt, out pOwner, out pObject);
   
9. 
   
10. 
    
11. if (pt == null) return;
    
12. IZAware pZAwareline = (IZAware)pt;
    
13. ((IZAware)pZAwareline).ZAware = true;
    
14. IGeometry geometry = (IGeometry)pt;
    
15. IGraphicsContainer3D pGCon3D = SC1.Scene.BasicGraphicsLayer as IGraphicsContainer3D;
    
16. IElement pElement = new MarkerElementClass();
    
17. 
    
18. IRgbColor pColor=new RgbColorClass ();
    
19. pColor .Red =255;
    
20. ISimpleMarkerSymbol pSMS = new SimpleMarkerSymbolClass();
    
21. pSMS.Size = 30;
    
22. pSMS.Color = pColor;
    
23. IMarkerElement pMarkerElement = new MarkerElementClass();
    
24. pMarkerElement =(IMarkerElement ) pElement;
    
25. pMarkerElement.Symbol = pSMS;
    
26. 
    
27. pElement.Geometry = geometry;
    
28. pGCon3D.AddElement(pElement);
    
29. 
    
30. pSC1.SceneGraph.RefreshViewers();
    
31. 
    

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