Creates a map projection.
Windows, Solaris, Linux
Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.
|IClone (esriSystem)||Provides access to members that control cloning of objects.|
|IESRISpatialReference||Provides access to members that control the import/export operations components of a spatial reference system. This interface has been deprecated and IESRISpatialReferenceGEN should be used.|
|IESRISpatialReferenceGEN||Provides access to members that generate well known string (WKS) representations of spatial reference objects. IESRISpatialReference has been deprecated and IESRISpatialReferenceGEN should be used.|
|IESRISpatialReferenceGEN2||Provides access to members that generate well known string representations for spatial reference objects. The strings include authority metadata.|
|IProjection||Provides access to members that control the properties of all map projections.|
|IProjectionGEN||OLE compatibility for providing access to members that control the properties of all map projections.|
|ISpatialReferenceAuthority||Provides access to the authority-related metadata for a spatial reference object.|
A Projection object encapsulates the mathematics needed to convert geographic coordinates between two different coordinate systems. A projection is a component of a projected coordinate system and is not usually used directly. Rather, a projected cooordinate system is defined and used to project cooordinates.