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IGeoTransformationOperationSet Interface (ArcObjects .NET 10.8 SDK)
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IGeoTransformationOperationSet Interface

Provides access to members that control a set of geographic transformation operators (GT + direction).

Product Availability

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


Use the GeotransformationOperationSet to project geometries having different geographic coordinate systems using the IGeometry::Project method. Use the IGeotransformationOperationSet methods to cache a set of Geotransformations in memory. This set is used by the software when projecting a geometry using the IGeometry::Project . If the geographic coordinate systems of the from/to spatial reference are different then the system looks in the GeoTranformationOperationSet to find a matching geotransformation. If no appropriate geotransformation is found, no geotransformation is applied.

When To Use

Useful when working with datasets that have multiple spatial references. Used in ArcCatalog to store any necessary transformations.


Name Description
Read-only property Count The number of geographic transformations in the set.
Method Find Check a geographic transformation and a direction to see if it exists in the set.
Method Get Returns a default geographic transformation.
Method Next Retrieves the next geographic transformation in the set.
Method Remove Deletes a particular geographic transformation.
Method RemoveAll Deletes all transformations in the set.
Method RemoveByKey Deletes a particular geographic transformation by its from and to GCS.
Method Reset Reinitializes the transformation set iterator.
Method Set Sets a default geographic transformation.

Classes that implement IGeoTransformationOperationSet

Classes Description
GeoTransformationOperationSet Stores a set of geographic transformation operators (GT + direction).

See Also

IMapGeographicTransformations Interface