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This document is archived and information here might be outdated. Recommended version. |
Projection Class (ArcObjects .NET 10.8 SDK)
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This document is archived and information here might be outdated. Recommended version. |
Creates a map projection.
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 | 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 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. |
| 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) |
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.