Creates a vertical datum.
Description
If a vertical coordinate system is gravity-related, it contains a vertical datum object. A vertical coordinate system can be ellipsoid/spheroid-based. In that case, it contains a horizontal datum object.
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. |
| IHVDatum | Indicator interface for a horizontal or vertical. |
| IPersist (esriSystem) | |
| IPersistStream (esriSystem) | |
| ISpatialReferenceAuthority | Provides access to the authority-related metadata for a spatial reference object. |
| ISpatialReferenceInfo | Provides access to members that control the properties common to all components of a spatial reference system. |
| ISupportErrorInfo (esriSystem) | |
| IVerticalDatum | Indicator interface for vertical datums. |
| IVerticalDatumEdit | Provides access to members that control the properties of a vertical datum. |