Creates a map projection.
Supported Platforms
Windows, Solaris, Linux
Extended Error Information
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.
Interfaces
| Interfaces | Description |
|---|---|
| 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 is same as IESRISpatialReferenceGEN. |
| IESRISpatialReferenceGEN | Provides access to members that generate well known string (WKS) representations of spatial reference objects. |
| IESRISpatialReferenceGEN2 | Provides access to members that generate well known string representations for spatial reference objects. The strings include authority metadata. |
| IPersist (esriSystem) | |
| IPersistStream (esriSystem) | |
| 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. |
| ISupportErrorInfo (esriSystem) |
Remarks
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.