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vtkHomogeneousTransform Class Reference

superclass for homogeneous transformations. More...

#include <vtkHomogeneousTransform.h>

Inheritance diagram for vtkHomogeneousTransform:

[legend]Collaboration diagram for vtkHomogeneousTransform:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	TransformPoints (vtkPoints *inPts, vtkPoints *outPts)
void	TransformPointsNormalsVectors (vtkPoints *inPts, vtkPoints *outPts, vtkNormals *inNms, vtkNormals *outNms, vtkVectors *inVrs, vtkVectors *outVrs)
void	GetMatrix (vtkMatrix4x4 *m)
vtkMatrix4x4 *	GetMatrix ()
vtkHomogeneousTransform *	GetHomogeneousInverse ()
void	InternalTransformPoint (const float in[3], float out[3])
void	InternalTransformPoint (const double in[3], double out[3])
void	InternalTransformDerivative (const float in[3], float out[3], float derivative[3][3])
void	InternalTransformDerivative (const double in[3], double out[3], double derivative[3][3])
vtkMatrix4x4 *	GetMatrixPointer ()
Static Public Methods
int	IsTypeOf (const char *type)
vtkHomogeneousTransform *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkHomogeneousTransform ()
	~vtkHomogeneousTransform ()
	vtkHomogeneousTransform (const vtkHomogeneousTransform &)
void	operator= (const vtkHomogeneousTransform &)
void	InternalDeepCopy (vtkAbstractTransform *transform)
Protected Attributes
vtkMatrix4x4 *	Matrix

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Detailed Description

superclass for homogeneous transformations.

Date:

2000/12/10 20:08:10

Revision:

1.3

Thanks:

Thanks to David G. Gobbi who developed this class.

vtkHomogeneousTransform provides a generic interface for homogeneous transformations, i.e. transformations which can be represented by multiplying a 4x4 matrix with a homogeneous coordinate.

See also:

vtkPerspectiveTransform vtkLinearTransform vtkIdentityTransform

Definition at line 59 of file vtkHomogeneousTransform.h.

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Constructor & Destructor Documentation

vtkHomogeneousTransform::vtkHomogeneousTransform (    )  [protected]

vtkHomogeneousTransform::~vtkHomogeneousTransform (    )  [protected]

vtkHomogeneousTransform::vtkHomogeneousTransform (  const vtkHomogeneousTransform &    )  [inline, protected]

Definition at line 116 of file vtkHomogeneousTransform.h.

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Member Function Documentation

virtual const char* vtkHomogeneousTransform::GetClassName (    )  [virtual]

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, vtkLinearTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkPerspectiveTransform, vtkTransform, and vtkLandmarkTransform.

int vtkHomogeneousTransform::IsTypeOf (  const char *    type )  [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, vtkLinearTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkPerspectiveTransform, vtkTransform, and vtkLandmarkTransform.

virtual int vtkHomogeneousTransform::IsA (  const char *    type )  [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, vtkLinearTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkPerspectiveTransform, vtkTransform, and vtkLandmarkTransform.

vtkHomogeneousTransform* vtkHomogeneousTransform::SafeDownCast (  vtkObject *    o )  [static]

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, vtkLinearTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkPerspectiveTransform, vtkTransform, and vtkLandmarkTransform.

void vtkHomogeneousTransform::PrintSelf (  ostream &    os, vtkIndent    indent )  [virtual]

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, vtkLinearTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkPerspectiveTransform, vtkTransform, and vtkLandmarkTransform.

void vtkHomogeneousTransform::TransformPoints (  vtkPoints *    inPts, vtkPoints *    outPts )  [virtual]

Apply the transformation to a series of points, and append the results to outPts. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, and vtkLinearTransform.

void vtkHomogeneousTransform::TransformPointsNormalsVectors (  vtkPoints *    inPts, vtkPoints *    outPts, vtkNormals *    inNms, vtkNormals *    outNms, vtkVectors *    inVrs, vtkVectors *    outVrs )  [virtual]

Apply the transformation to a combination of points, normals and vectors. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, and vtkLinearTransform.

void vtkHomogeneousTransform::GetMatrix (  vtkMatrix4x4 *    m )

Get a copy of the internal transformation matrix. The transform is Updated first, to guarantee that the matrix is valid.

vtkMatrix4x4* vtkHomogeneousTransform::GetMatrix (    )  [inline]

Get a pointer to an internal vtkMatrix4x4 that represents the transformation. An Update() is called on the transform to ensure that the matrix is up-to-date when you get it. You should not store the matrix pointer anywhere because it might become stale. Definition at line 87 of file vtkHomogeneousTransform.h. Referenced by vtkTransform::MultiplyPoint().

vtkHomogeneousTransform* vtkHomogeneousTransform::GetHomogeneousInverse (    )  [inline]

Just like GetInverse(), but includes typecast to vtkHomogeneousTransform. Definition at line 91 of file vtkHomogeneousTransform.h.

void vtkHomogeneousTransform::InternalTransformPoint (  const float    in[3], float    out[3] )  [virtual]

This will calculate the transformation without calling Update. Meant for use only within other VTK classes. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, and vtkLinearTransform.

void vtkHomogeneousTransform::InternalTransformPoint (  const double    in[3], double    out[3] )  [virtual]

Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, and vtkLinearTransform.

void vtkHomogeneousTransform::InternalTransformDerivative (  const float    in[3], float    out[3], float    derivative[3][3] )  [virtual]

This will calculate the transformation as well as its derivative without calling Update. Meant for use only within other VTK classes. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, and vtkLinearTransform.

void vtkHomogeneousTransform::InternalTransformDerivative (  const double    in[3], double    out[3], double    derivative[3][3] )  [virtual]

Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, and vtkLinearTransform.

vtkMatrix4x4* vtkHomogeneousTransform::GetMatrixPointer (    )  [inline]

This is an obsolete method provided for backwards-compatibility. Do not use. Definition at line 109 of file vtkHomogeneousTransform.h.

void vtkHomogeneousTransform::operator= (  const vtkHomogeneousTransform &    )  [inline, protected]

Definition at line 117 of file vtkHomogeneousTransform.h.

void vtkHomogeneousTransform::InternalDeepCopy (  vtkAbstractTransform *    t )  [protected, virtual]

Perform any subclass-specific DeepCopy. Reimplemented from vtkAbstractTransform. Reimplemented in vtkIdentityTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkPerspectiveTransform, vtkTransform, and vtkLandmarkTransform.

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Member Data Documentation

vtkMatrix4x4* vtkHomogeneousTransform::Matrix [protected]

Definition at line 121 of file vtkHomogeneousTransform.h.

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The documentation for this class was generated from the following file:

• common/vtkHomogeneousTransform.h

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