ArcObjects Library Reference (Geometry)

IGeoTransformation Interface

Provides access to members that define a geographic (datum) transformation.

Product Availability

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

Description

Most methods and properties are inherited from ITransformation. Each geographic (datum) transformation also has a name, a 'from', and a 'to' spatial reference.

Members

		Description
	GetSpatialReferences	Returns the from and to spatial references for the transformation.
	Name	The name of the geographic transformation.
	PutSpatialReferences	Sets the from and to spatial references for the transformation.
	TransformMeasuresFF	Transforms floating point measures to floating point measures (or do the inverse).
	TransformMeasuresFI	Transforms floating point measures to integer measures (or do the inverse).
	TransformMeasuresIF	Transforms integer measures to floating point measures (or do the inverse).
	TransformMeasuresII	Transforms integer measures to integer measures (or do the inverse).
	TransformPointsFF	Transforms floating point points to floating point points (or do the inverse).
	TransformPointsFI	Transforms floating point points to integer points (or do the inverse).
	TransformPointsIF	Transforms integer points to floating point points (or do the inverse).
	TransformPointsII	Transforms integer points to integer points (or do the inverse).

Inherited Interfaces

Interfaces	Description
ITransformation	Provides access to members that apply a function (or its inverse) to a set of points or measures. The suffix of each method indicates the type of parameters operated on.

CoClasses that implement IGeoTransformation

CoClasses and Classes	Description
AbridgedMolodenskyTransformation	Creates an Abridged Molodensky transformation.
CompositeGeoTransformation	Performs a sequence of geographic transformations.
CoordinateFrameTransformation	Creates a Coordinate Frame transformation.
GeocentricTranslation	Creates a geocentric translation.
GEOCONTransformation	Creates a GEOCON-based transformation.
Geographic2DOffsetTransformation	Creates a geographic 2D offset transformation.
HARNTransformation	Creates a HARN-based transformation.
LongitudeRotationTransformation	Creates a longitude rotation transformation.
MolodenskyBadekasTransformation	Creates a Molodensky-Badekas transformation.
MolodenskyTransformation	Creates a Molodensky transformation.
NADCONTransformation	Creates a NADCON-based transformation.
NTv2Transformation	Creates a NTv2-based transformation.
NullTransformation	Creates a null geographic transformation.
PositionVectorTransformation	Creates a Position Vector transformation.
UnitChangeTransformation	Creates a unit change transformation.

Remarks

Of the ITransformation interface, only the TransformPointsFF method is implemented.

.NET Related Topics

Creating a predefined geotransformation | Geometry service | How to project a raster with a datum transformation | How to use the IGeoTransformationOperationSet methods