ArcObjects Library Reference (Geometry)

ICompositeGeoTransformation Interface

Provides access to members that control a set of geographic transformations.

Product Availability

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

Description

Sometimes it is necessary to transform between two geographic coordinate systems where a direct transformation does not exist. A composite geotransformation allows you to create a 'chain' of existing or custom transformations. Each transformation in the set must have its direction set properly.

Members

		Description
	Add	Adds a geographic transformation to the list.
	Count	The number of geographic transformations in the list.
	GeoTransformation	A geographic transformation from the list.
	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.
	SetEmpty	Clears the list of geographic transformations from the object.
	TransformationDirection	The direction (forward/reverse) of a geographic 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
IGeoTransformation	Provides access to members that define a geographic (datum) transformation.
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 ICompositeGeoTransformation

CoClasses and Classes	Description
CompositeGeoTransformation	Performs a sequence of geographic transformations.

Remarks

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