IProjectiveTransformation2D Interface

Provides access to members that define and manipulate projective transformations.

Members

	Name	Description
	DefineFromControlPoints	Defines the best projective transformation between two sets of points. Can be used to register paper maps on a digitizer.
	DefineFromControlPointsEx	Defines the best projective transformation between two sets of points. Can be used to register paper maps on a digitizer.
	GetControlPointError	Returns the errors involved in moving control point i from the 'from' to 'to' system. These error terms are valid after using DefineFromControlPoints/Ex to define the transformation.
	GetRMSError	RMS (Root Mean Square) error expressed relative to the 'from' and 'to' points defining the transformation. These error terms are valid after using DefineFromControlPoints/Ex to define the transformation.
	Project	Moves this transformation into another spatial reference. If the transformations contains only translations, then use the MoveOrigin property to define an equivalent translation in the new spatial reference.
	QueryTransformationParameters	Returns the eight parameters which define the two dimensional projective transformation.
	Reset	Resets the tranformation.
	SetTransformationParameters	Sets the eight parameters which define the two dimensional projective transformation.
	SpatialReference	The spatial reference in which this transformation is meaningful.
	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).

IProjectiveTransformation2D.DefineFromControlPoints Method

Defines the best projective transformation between two sets of points. Can be used to register paper maps on a digitizer.

Public Sub DefineFromControlPoints ( _
    ByVal numPoints As Integer, _
    ByRef fromPoints As IPoint, _
    ByRef toPoints As IPoint _
)

public void DefineFromControlPoints (
    int numPoints,
    ref IPoint fromPoints,
    ref IPoint toPoints
);

IProjectiveTransformation2D.DefineFromControlPointsEx Method

Defines the best projective transformation between two sets of points. Can be used to register paper maps on a digitizer.

Public Sub DefineFromControlPointsEx ( _
    ByVal numPoints As Integer, _
    ByRef fromPoints As WKSPoint, _
    ByRef toPoints As WKSPoint _
)

public void DefineFromControlPointsEx (
    int numPoints,
    ref WKSPoint fromPoints,
    ref WKSPoint toPoints
);

IProjectiveTransformation2D.GetControlPointError Method

Returns the errors involved in moving control point i from the 'from' to 'to' system. These error terms are valid after using DefineFromControlPoints/Ex to define the transformation.

Public Sub GetControlPointError ( _
    ByVal i As Integer, _
    ByRef fromError As Double, _
    ByRef toError As Double _
)

public void GetControlPointError (
    int i,
    ref double fromError,
    ref double toError
);

IProjectiveTransformation2D.GetRMSError Method

RMS (Root Mean Square) error expressed relative to the 'from' and 'to' points defining the transformation. These error terms are valid after using DefineFromControlPoints/Ex to define the transformation.

Public Sub GetRMSError ( _
    ByRef fromError As Double, _
    ByRef toError As Double _
)

public void GetRMSError (
    ref double fromError,
    ref double toError
);

IProjectiveTransformation2D.Project Method

Moves this transformation into another spatial reference. If the transformations contains only translations, then use the MoveOrigin property to define an equivalent translation in the new spatial reference.

Public Sub Project ( _
    ByVal newSpatialReference As ISpatialReference _
)

public void Project (
    ISpatialReference newSpatialReference
);

IProjectiveTransformation2D.QueryTransformationParameters Method

Returns the eight parameters which define the two dimensional projective transformation.

Public Sub QueryTransformationParameters ( _
    ByVal Direction As esriTransformDirection, _
    ByRef params As Double _
)

public void QueryTransformationParameters (
    esriTransformDirection Direction,
    ref double params
);

IProjectiveTransformation2D.Reset Method

Resets the tranformation.

Public Sub Reset ( _
)

public void Reset (
);

IProjectiveTransformation2D.SetTransformationParameters Method

Sets the eight parameters which define the two dimensional projective transformation.

Public Sub SetTransformationParameters ( _
    ByVal Direction As esriTransformDirection, _
    ByRef params As Double _
)

public void SetTransformationParameters (
    esriTransformDirection Direction,
    ref double params
);

IProjectiveTransformation2D.SpatialReference Property

The spatial reference in which this transformation is meaningful.

Public Property SpatialReference As ISpatialReference

public ISpatialReference SpatialReference {get; set;}

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.

Classes that implement IProjectiveTransformation2D

Classes	Description
ProjectiveTransformation2D	A two dimensional projective transformation.