ICompositeGeoTransformation Interface

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

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

	Name	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.
	GetInverse	Returns an inverted transformation.
	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).

ICompositeGeoTransformation.Add Method

Adds a geographic transformation to the list.

Public Sub Add ( _
    ByVal Direction As esriTransformDirection, _
    ByVal pXForm As IGeoTransformation _
)

public void Add (
    esriTransformDirection Direction,
    IGeoTransformation pXForm
);

ICompositeGeoTransformation.Count Property

The number of geographic transformations in the list.

Public ReadOnly Property Count As Integer

public int Count {get;}

ICompositeGeoTransformation.GeoTransformation Property

A geographic transformation from the list.

Public Function get_GeoTransformation ( _
    ByVal i As Integer _
) As IGeoTransformation

public IGeoTransformation get_GeoTransformation (
    int i
);

ICompositeGeoTransformation.GetInverse Method

Returns an inverted transformation.

Public Sub GetInverse ( _
    ByRef pInverted As ICompositeGeoTransformation _
)

public void GetInverse (
    ref ICompositeGeoTransformation pInverted
);

ICompositeGeoTransformation.SetEmpty Method

Clears the list of geographic transformations from the object.

Public Sub SetEmpty ( _
)

public void SetEmpty (
);

ICompositeGeoTransformation.TransformationDirection Property

The direction (forward/reverse) of a geographic transformation.

Public Function get_TransformationDirection ( _
    ByVal i As Integer _
) As esriTransformDirection

public esriTransformDirection get_TransformationDirection (
    int i
);

Remarks

The TransformationDirection uses the esriTranformDirection constant. The returned values are esriTransformForward (0) or esriTransformReverse (1). The i parameter specifies for which GeoTransformation to return the direction.

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.

Classes that implement ICompositeGeoTransformation

Classes	Description
CompositeGeoTransformation	Performs a sequence of geographic transformations.

Remarks

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