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IUnknownCoordinateSystem Interface (ArcObjects .NET 10.5 SDK)
ArcObjects Help for .NET developers > ArcObjects namespaces > Geometry > ESRI.ArcGIS.Geometry > Interfaces > IU > IUnknownCoordinateSystem Interface (ArcObjects .NET 10.5 SDK)
ArcObjects Library Reference (Geometry)  

IUnknownCoordinateSystem Interface

Indicator interface that identifies an Unknown coordinate system.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Inherited Interfaces

Interfaces Description
ISpatialReference Provides access to members that control a SpatialReference.
ISpatialReferenceInfo Provides access to members that control the properties common to all components of a spatial reference system.

CoClasses that implement IUnknownCoordinateSystem

CoClasses and Classes Description
UnknownCoordinateSystem Creates an unknown coordinate system.