A collection of terrain overlay objects.
  AddComplete | Raised when an asynchronous add is completed. | 
| Implemented Interface | 
|---|
| IAgStkGraphicsTerrainCollection | 
| IAgStkGraphicsTerrainCollectionEvents | 
| STK Graphics Primitives | Send comments on this topic. | 
| AgStkGraphicsTerrainCollection Object | |
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  AddComplete | Raised when an asynchronous add is completed. | 
| Implemented Interface | 
|---|
| IAgStkGraphicsTerrainCollection | 
| IAgStkGraphicsTerrainCollectionEvents |