Public Function GetTerrainHeightForLatLon( _
   ByVal latitude As Double, _
   ByVal longitude As Double, _
   ByVal interpMethod As AgEStkRadarTerrainInterpMethod _
) As Double

public double GetTerrainHeightForLatLon(
   double latitude, 
   double longitude, 
   AgEStkRadarTerrainInterpMethod interpMethod
);

public: double GetTerrainHeightForLatLon(
   double latitude, 
   double longitude, 
   AgEStkRadarTerrainInterpMethod interpMethod
);

public double getTerrainHeightForLatLon(
   double latitude, 
   double longitude, 
   AgEStkRadarTerrainInterpMethod interpMethod
);

public: HRESULT GetTerrainHeightForLatLon(
   double latitude, 
   double longitude, 
   AgEStkRadarTerrainInterpMethod interpMethod, 
   double * ReturnValue
);