ITK  4.4.0
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itk::AffineTransform< TScalarType, NDimensions > Class Template Reference

#include <itkAffineTransform.h>

+ Inheritance diagram for itk::AffineTransform< TScalarType, NDimensions >:
+ Collaboration diagram for itk::AffineTransform< TScalarType, NDimensions >:

Detailed Description

template<class TScalarType = double, unsigned int NDimensions = 3>
class itk::AffineTransform< TScalarType, NDimensions >

Affine transformation of a vector space (e.g. space coordinates)

This class allows the definition and manipulation of affine transformations of an n-dimensional affine space (and its associated vector space) onto itself. One common use is to define and manipulate Euclidean coordinate transformations in two and three dimensions, but other uses are possible as well.

An affine transformation is defined mathematically as a linear transformation plus a constant offset. If A is a constant n x n matrix and b is a constant n-vector, then y = Ax+b defines an affine transformation from the n-vector x to the n-vector y.

The difference between two points is a vector and transforms linearly, using the matrix only. That is, (y1-y2) = A*(x1-x2).

The AffineTransform class determines whether to transform an object as a point or a vector by examining its type. An object of type Point transforms as a point; an object of type Vector transforms as a vector.

One common use of affine transformations is to define coordinate conversions in two- and three-dimensional space. In this application, x is a two- or three-dimensional vector containing the "source" coordinates of a point, y is a vector containing the "target" coordinates, the matrix A defines the scaling and rotation of the coordinate systems from the source to the target, and b defines the translation of the origin from the source to the target. More generally, A can also define anisotropic scaling and shearing transformations. Any good textbook on computer graphics will discuss coordinate transformations in more detail. Several of the methods in this class are designed for this purpose and use the language appropriate to coordinate conversions.

Any two affine transformations may be composed and the result is another affine transformation. However, the order is important. Given two affine transformations T1 and T2, we will say that "precomposing T1 with T2" yields the transformation which applies T1 to the source, and then applies T2 to that result to obtain the target. Conversely, we will say that "postcomposing T1 with T2" yields the transformation which applies T2 to the source, and then applies T1 to that result to obtain the target. (Whether T1 or T2 comes first lexicographically depends on whether you choose to write mappings from right-to-left or vice versa; we avoid the whole problem by referring to the order of application rather than the textual order.)

There are two template parameters for this class:

ScalarT The type to be used for scalar numeric values. Either float or double.

NDimensions The number of dimensions of the vector space.

This class provides several methods for setting the matrix and vector defining the transform. To support the registration framework, the transform parameters can also be set as an Array<double> of size (NDimension + 1) * NDimension using method SetParameters(). The first (NDimension x NDimension) parameters defines the matrix in row-major order (where the column index varies the fastest). The last NDimension parameters defines the translation in each dimensions.

This class also supports the specification of a center of rotation (center) and a translation that is applied with respect to that centered rotation. By default the center of rotation is set to the origin.

Definition at line 104 of file itkAffineTransform.h.

Public Types

typedef Superclass::CenterType CenterType
 
typedef SmartPointer< const SelfConstPointer
 
typedef
Superclass::InputCovariantVectorType 
InputCovariantVectorType
 
typedef Superclass::InputPointType InputPointType
 
typedef Superclass::InputVectorType InputVectorType
 
typedef
Superclass::InputVnlVectorType 
InputVnlVectorType
 
typedef
Superclass::InverseMatrixType 
InverseMatrixType
 
typedef
InverseTransformBaseType::Pointer 
InverseTransformBasePointer
 
typedef
Superclass::InverseTransformBaseType 
InverseTransformBaseType
 
typedef Superclass::JacobianType JacobianType
 
typedef Superclass::MatrixType MatrixType
 
typedef Superclass::OffsetType OffsetType
 
typedef
Superclass::OutputCovariantVectorType 
OutputCovariantVectorType
 
typedef Superclass::OutputPointType OutputPointType
 
typedef
Superclass::OutputVectorType 
OutputVectorType
 
typedef
Superclass::OutputVnlVectorType 
OutputVnlVectorType
 
typedef Superclass::ParametersType ParametersType
 
typedef SmartPointer< SelfPointer
 
typedef Superclass::ScalarType ScalarType
 
typedef AffineTransform Self
 
typedef
MatrixOffsetTransformBase
< TScalarType, NDimensions,
NDimensions > 
Superclass
 
typedef Superclass::TranslationType TranslationType
 
- Public Types inherited from itk::MatrixOffsetTransformBase< TScalarType, NDimensions, NDimensions >
typedef InputPointType CenterType
 
typedef SmartPointer< const SelfConstPointer
 
typedef
Superclass::InputDiffusionTensor3DType 
InputDiffusionTensor3DType
 
typedef
Superclass::InputSymmetricSecondRankTensorType 
InputSymmetricSecondRankTensorType
 
typedef CovariantVector
< TScalarType,
InputDiffusionTensor3DType::Dimension > 
InputTensorEigenVectorType
 
typedef
Superclass::InputVectorPixelType 
InputVectorPixelType
 
typedef Matrix< TScalarType,
itkGetStaticConstMacro(InputSpaceDimension),
itkGetStaticConstMacro(OutputSpaceDimension)> 
InverseMatrixType
 
typedef
InverseTransformBaseType::Pointer 
InverseTransformBasePointer
 
typedef
Superclass::InverseTransformBaseType 
InverseTransformBaseType
 
typedef Superclass::JacobianType JacobianType
 
typedef OutputVectorType OffsetType
 
typedef OffsetType::ValueType OffsetValueType
 
typedef
Superclass::OutputDiffusionTensor3DType 
OutputDiffusionTensor3DType
 
typedef
Superclass::OutputSymmetricSecondRankTensorType 
OutputSymmetricSecondRankTensorType
 
typedef
Superclass::OutputVectorPixelType 
OutputVectorPixelType
 
typedef Superclass::ParametersType ParametersType
 
typedef
Superclass::ParametersValueType 
ParametersValueType
 
typedef SmartPointer< SelfPointer
 
typedef Superclass::ScalarType ScalarType
 
typedef MatrixOffsetTransformBase Self
 
typedef Transform< TScalarType,
NInputDimensions,
NOutputDimensions > 
Superclass
 
typedef
Superclass::TransformCategoryType 
TransformCategoryType
 
typedef OutputVectorType TranslationType
 
typedef TranslationType::ValueType TranslationValueType
 
typedef Vector< TScalarType,
itkGetStaticConstMacro(InputSpaceDimension)> 
InputVectorType
 
typedef Vector< TScalarType,
itkGetStaticConstMacro(OutputSpaceDimension)> 
OutputVectorType
 
typedef OutputVectorType::ValueType OutputVectorValueType
 
typedef CovariantVector
< TScalarType,
itkGetStaticConstMacro(InputSpaceDimension)> 
InputCovariantVectorType
 
typedef CovariantVector
< TScalarType,
itkGetStaticConstMacro(OutputSpaceDimension)> 
OutputCovariantVectorType
 
typedef vnl_vector_fixed
< TScalarType,
itkGetStaticConstMacro(InputSpaceDimension)> 
InputVnlVectorType
 
typedef vnl_vector_fixed
< TScalarType,
itkGetStaticConstMacro(OutputSpaceDimension)> 
OutputVnlVectorType
 
typedef Point< TScalarType,
itkGetStaticConstMacro(InputSpaceDimension)> 
InputPointType
 
typedef InputPointType::ValueType InputPointValueType
 
typedef Point< TScalarType,
itkGetStaticConstMacro(OutputSpaceDimension)> 
OutputPointType
 
typedef OutputPointType::ValueType OutputPointValueType
 
typedef Matrix< TScalarType,
itkGetStaticConstMacro(OutputSpaceDimension),
itkGetStaticConstMacro(InputSpaceDimension)> 
MatrixType
 
typedef MatrixType::ValueType MatrixValueType
 
- Public Types inherited from itk::Transform< TScalarType, NInputDimensions, NOutputDimensions >
typedef SmartPointer< const SelfConstPointer
 
typedef Array
< ParametersValueType
DerivativeType
 
typedef Matrix< double,
itkGetStaticConstMacro(OutputSpaceDimension),
itkGetStaticConstMacro(InputSpaceDimension)> 
DirectionChangeMatrix
 
typedef CovariantVector
< TScalarType,
NInputDimensions > 
InputCovariantVectorType
 
typedef DiffusionTensor3D
< TScalarType > 
InputDiffusionTensor3DType
 
typedef Matrix< double,
itkGetStaticConstMacro(InputSpaceDimension),
itkGetStaticConstMacro(InputSpaceDimension)> 
InputDirectionMatrix
 
typedef Point< TScalarType,
NInputDimensions > 
InputPointType
 
typedef
SymmetricSecondRankTensor
< TScalarType,
NInputDimensions > 
InputSymmetricSecondRankTensorType
 
typedef VariableLengthVector
< TScalarType > 
InputVectorPixelType
 
typedef Vector< TScalarType,
NInputDimensions > 
InputVectorType
 
typedef vnl_vector_fixed
< TScalarType,
NInputDimensions > 
InputVnlVectorType
 
typedef
InverseTransformBaseType::Pointer 
InverseTransformBasePointer
 
typedef Transform< TScalarType,
NOutputDimensions,
NInputDimensions > 
InverseTransformBaseType
 
typedef Array2D
< ParametersValueType
JacobianType
 
typedef Matrix< TScalarType,
itkGetStaticConstMacro(OutputSpaceDimension),
itkGetStaticConstMacro(InputSpaceDimension)> 
MatrixType
 
typedef
Superclass::NumberOfParametersType 
NumberOfParametersType
 
typedef CovariantVector
< TScalarType,
NOutputDimensions > 
OutputCovariantVectorType
 
typedef DiffusionTensor3D
< TScalarType > 
OutputDiffusionTensor3DType
 
typedef Matrix< double,
itkGetStaticConstMacro(OutputSpaceDimension),
itkGetStaticConstMacro(OutputSpaceDimension)> 
OutputDirectionMatrix
 
typedef Point< TScalarType,
NOutputDimensions > 
OutputPointType
 
typedef
SymmetricSecondRankTensor
< TScalarType,
NOutputDimensions > 
OutputSymmetricSecondRankTensorType
 
typedef VariableLengthVector
< TScalarType > 
OutputVectorPixelType
 
typedef Vector< TScalarType,
NOutputDimensions > 
OutputVectorType
 
typedef vnl_vector_fixed
< TScalarType,
NOutputDimensions > 
OutputVnlVectorType
 
typedef Superclass::ParametersType ParametersType
 
typedef
Superclass::ParametersValueType 
ParametersValueType
 
typedef SmartPointer< SelfPointer
 
typedef TScalarType ScalarType
 
typedef Transform Self
 
typedef TransformBase Superclass
 
- Public Types inherited from itk::TransformBase
typedef SmartPointer< const SelfConstPointer
 
typedef IdentifierType NumberOfParametersType
 
typedef OptimizerParameters
< ParametersValueType
ParametersType
 
typedef double ParametersValueType
 
typedef SmartPointer< SelfPointer
 
typedef TransformBase Self
 
typedef Object Superclass
 
enum  TransformCategoryType {
  UnknownTransformCategory =0,
  Linear =1,
  BSpline =2,
  Spline =3,
  DisplacementField =4,
  VelocityField =5
}
 
- Public Types inherited from itk::Object
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef Object Self
 
typedef LightObject Superclass
 
- Public Types inherited from itk::LightObject
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef LightObject Self
 

Public Member Functions

virtual ::itk::LightObject::Pointer CreateAnother (void) const
 
bool GetInverse (Self *inverse) const
 
virtual InverseTransformBasePointer GetInverseTransform () const
 
virtual const char * GetNameOfClass () const
 
 itkLegacyMacro (InputPointType BackTransformPoint(const OutputPointType &point) const)
 
ScalarType Metric (const Self *other) const
 
ScalarType Metric (void) const
 
void Rotate2D (TScalarType angle, bool pre=0)
 
void Rotate3D (const OutputVectorType &axis, TScalarType angle, bool pre=0)
 
void Scale (const OutputVectorType &factor, bool pre=0)
 
void Scale (const TScalarType &factor, bool pre=0)
 
void Shear (int axis1, int axis2, TScalarType coef, bool pre=0)
 
void Translate (const OutputVectorType &offset, bool pre=0)
 
void Rotate (int axis1, int axis2, TScalarType angle, bool pre=0)
 
 itkLegacyMacro (InputPointType BackTransform(const OutputPointType &point) const)
 
 itkLegacyMacro (InputVectorType BackTransform(const OutputVectorType &vector) const)
 
 itkLegacyMacro (InputVnlVectorType BackTransform(const OutputVnlVectorType &vector) const)
 
 itkLegacyMacro (InputCovariantVectorType BackTransform(const OutputCovariantVectorType &vector) const)
 
- Public Member Functions inherited from itk::MatrixOffsetTransformBase< TScalarType, NDimensions, NDimensions >
void Compose (const Self *other, bool pre=0)
 
virtual void ComputeInverseJacobianWithRespectToPosition (const InputPointType &x, JacobianType &jac) const
 
virtual void ComputeJacobianWithRespectToParameters (const InputPointType &x, JacobianType &j) const
 
virtual void ComputeJacobianWithRespectToPosition (const InputPointType &x, JacobianType &jac) const
 
virtual ::itk::LightObject::Pointer CreateAnother (void) const
 
const InputPointTypeGetCenter () const
 
virtual const ParametersTypeGetFixedParameters (void) const
 
virtual const MatrixTypeGetMatrix () const
 
const OutputVectorTypeGetOffset (void) const
 
const ParametersTypeGetParameters (void) const
 
virtual TransformCategoryType GetTransformCategory () const
 
const OutputVectorTypeGetTranslation (void) const
 
virtual bool IsLinear () const
 
virtual void SetFixedParameters (const ParametersType &)
 
virtual void SetIdentity (void)
 
void SetParameters (const ParametersType &parameters)
 
OutputCovariantVectorType TransformCovariantVector (const InputCovariantVectorType &vector) const
 
OutputVectorPixelType TransformCovariantVector (const InputVectorPixelType &vector) const
 
OutputDiffusionTensor3DType TransformDiffusionTensor3D (const InputDiffusionTensor3DType &tensor) const
 
OutputVectorPixelType TransformDiffusionTensor3D (const InputVectorPixelType &tensor) const
 
OutputPointType TransformPoint (const InputPointType &point) const
 
OutputSymmetricSecondRankTensorType TransformSymmetricSecondRankTensor (const InputSymmetricSecondRankTensorType &tensor) const
 
OutputVectorPixelType TransformSymmetricSecondRankTensor (const InputVectorPixelType &tensor) const
 
OutputVectorType TransformVector (const InputVectorType &vector) const
 
OutputVnlVectorType TransformVector (const InputVnlVectorType &vector) const
 
OutputVectorPixelType TransformVector (const InputVectorPixelType &vector) const
 
virtual void SetMatrix (const MatrixType &matrix)
 
void SetOffset (const OutputVectorType &offset)
 
void SetCenter (const InputPointType &center)
 
void SetTranslation (const OutputVectorType &translation)
 
bool GetInverse (Self *inverse) const
 
- Public Member Functions inherited from itk::Transform< TScalarType, NInputDimensions, NOutputDimensions >
unsigned int GetInputSpaceDimension (void) const
 
bool GetInverse (Self *) const
 
virtual NumberOfParametersType GetNumberOfLocalParameters (void) const
 
virtual NumberOfParametersType GetNumberOfParameters (void) const
 
unsigned int GetOutputSpaceDimension (void) const
 
virtual std::string GetTransformTypeAsString () const
 
 itkCloneMacro (Self)
 
virtual void SetParametersByValue (const ParametersType &p)
 
virtual OutputCovariantVectorType TransformCovariantVector (const InputCovariantVectorType &vector, const InputPointType &point) const
 
virtual OutputVectorPixelType TransformCovariantVector (const InputVectorPixelType &vector, const InputPointType &point) const
 
virtual OutputDiffusionTensor3DType TransformDiffusionTensor3D (const InputDiffusionTensor3DType &tensor, const InputPointType &point) const
 
virtual OutputVectorPixelType TransformDiffusionTensor3D (const InputVectorPixelType &tensor, const InputPointType &point) const
 
virtual
OutputSymmetricSecondRankTensorType 
TransformSymmetricSecondRankTensor (const InputSymmetricSecondRankTensorType &tensor, const InputPointType &point) const
 
virtual OutputVectorPixelType TransformSymmetricSecondRankTensor (const InputVectorPixelType &tensor, const InputPointType &point) const
 
virtual OutputVectorType TransformVector (const InputVectorType &vector, const InputPointType &point) const
 
virtual OutputVnlVectorType TransformVector (const InputVnlVectorType &vector, const InputPointType &point) const
 
virtual OutputVectorPixelType TransformVector (const InputVectorPixelType &vector, const InputPointType &point) const
 
virtual void UpdateTransformParameters (const DerivativeType &update, TScalarType factor=1.0)
 
- Public Member Functions inherited from itk::TransformBase
virtual void SetFixedParameters (const ParametersType &)=0
 
virtual void SetParameters (const ParametersType &)=0
 
virtual void SetParametersByValue (const ParametersType &p)=0
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *)
 
unsigned long AddObserver (const EventObject &event, Command *) const
 
virtual void DebugOff () const
 
virtual void DebugOn () const
 
CommandGetCommand (unsigned long tag)
 
bool GetDebug () const
 
MetaDataDictionaryGetMetaDataDictionary (void)
 
const MetaDataDictionaryGetMetaDataDictionary (void) const
 
virtual ModifiedTimeType GetMTime () const
 
virtual const TimeStampGetTimeStamp () const
 
bool HasObserver (const EventObject &event) const
 
void InvokeEvent (const EventObject &)
 
void InvokeEvent (const EventObject &) const
 
virtual void Modified () const
 
virtual void Register () const
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag)
 
void SetDebug (bool debugFlag) const
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
virtual void SetReferenceCount (int)
 
virtual void UnRegister () const
 
- Public Member Functions inherited from itk::LightObject
virtual void Delete ()
 
virtual int GetReferenceCount () const
 
 itkCloneMacro (Self)
 
void Print (std::ostream &os, Indent indent=0) const
 

Static Public Member Functions

static Pointer New ()
 
- Static Public Member Functions inherited from itk::MatrixOffsetTransformBase< TScalarType, NDimensions, NDimensions >
static Pointer New ()
 

Static Public Attributes

static const unsigned int InputSpaceDimension = NDimensions
 
static const unsigned int OutputSpaceDimension = NDimensions
 
static const unsigned int SpaceDimension = NDimensions
 
static const unsigned int ParametersDimension = NDimensions *( NDimensions + 1 )
 
- Static Public Attributes inherited from itk::MatrixOffsetTransformBase< TScalarType, NDimensions, NDimensions >
static const unsigned int InputSpaceDimension
 
static const unsigned int OutputSpaceDimension
 
static const unsigned int ParametersDimension
 
- Static Public Attributes inherited from itk::Transform< TScalarType, NInputDimensions, NOutputDimensions >
static const unsigned int InputSpaceDimension = NInputDimensions
 
static const unsigned int OutputSpaceDimension = NOutputDimensions
 

Protected Member Functions

void PrintSelf (std::ostream &s, Indent indent) const
 
virtual ~AffineTransform ()
 
 AffineTransform (const MatrixType &matrix, const OutputVectorType &offset)
 
 AffineTransform (unsigned int paramDims)
 
 AffineTransform ()
 
- Protected Member Functions inherited from itk::MatrixOffsetTransformBase< TScalarType, NDimensions, NDimensions >
virtual void ComputeMatrix (void)
 
virtual void ComputeMatrixParameters (void)
 
virtual void ComputeOffset (void)
 
virtual void ComputeTranslation (void)
 
const InverseMatrixTypeGetInverseMatrix (void) const
 
const InverseMatrixTypeGetVarInverseMatrix (void) const
 
bool InverseMatrixIsOld (void) const
 
void PrintSelf (std::ostream &s, Indent indent) const
 
void SetVarCenter (const InputPointType &center)
 
void SetVarInverseMatrix (const InverseMatrixType &matrix) const
 
void SetVarMatrix (const MatrixType &matrix)
 
void SetVarOffset (const OutputVectorType &offset)
 
void SetVarTranslation (const OutputVectorType &translation)
 
virtual ~MatrixOffsetTransformBase ()
 
 MatrixOffsetTransformBase (const MatrixType &matrix, const OutputVectorType &offset)
 
 MatrixOffsetTransformBase (unsigned int paramDims)
 
 MatrixOffsetTransformBase ()
 
- Protected Member Functions inherited from itk::Transform< TScalarType, NInputDimensions, NOutputDimensions >
virtual LightObject::Pointer InternalClone () const
 
OutputDiffusionTensor3DType PreservationOfPrincipalDirectionDiffusionTensor3DReorientation (const InputDiffusionTensor3DType, const JacobianType) const
 
 Transform ()
 
 Transform (NumberOfParametersType NumberOfParameters)
 
virtual ~Transform ()
 
- Protected Member Functions inherited from itk::TransformBase
 TransformBase ()
 
virtual ~TransformBase ()
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
virtual void SetTimeStamp (const TimeStamp &time)
 
virtual ~Object ()
 
- Protected Member Functions inherited from itk::LightObject
 LightObject ()
 
virtual void PrintHeader (std::ostream &os, Indent indent) const
 
virtual void PrintTrailer (std::ostream &os, Indent indent) const
 
virtual ~LightObject ()
 

Private Member Functions

 AffineTransform (const Self &other)
 
const Selfoperator= (const Self &)
 

Additional Inherited Members

- Protected Types inherited from itk::LightObject
typedef int InternalReferenceCountType
 
- Protected Attributes inherited from itk::Transform< TScalarType, NInputDimensions, NOutputDimensions >
DirectionChangeMatrix m_DirectionChange
 
ParametersType m_FixedParameters
 
ParametersType m_Parameters
 

Member Typedef Documentation

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::CenterType itk::AffineTransform< TScalarType, NDimensions >::CenterType

Definition at line 145 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef SmartPointer< const Self > itk::AffineTransform< TScalarType, NDimensions >::ConstPointer

Definition at line 115 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::InputCovariantVectorType itk::AffineTransform< TScalarType, NDimensions >::InputCovariantVectorType

Definition at line 141 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::InputPointType itk::AffineTransform< TScalarType, NDimensions >::InputPointType

Definition at line 135 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::InputVectorType itk::AffineTransform< TScalarType, NDimensions >::InputVectorType

Definition at line 137 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::InputVnlVectorType itk::AffineTransform< TScalarType, NDimensions >::InputVnlVectorType

Definition at line 139 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::InverseMatrixType itk::AffineTransform< TScalarType, NDimensions >::InverseMatrixType

Definition at line 144 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef InverseTransformBaseType::Pointer itk::AffineTransform< TScalarType, NDimensions >::InverseTransformBasePointer

Definition at line 152 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::InverseTransformBaseType itk::AffineTransform< TScalarType, NDimensions >::InverseTransformBaseType

Base inverse transform type. This type should not be changed to the concrete inverse transform type or inheritance would be lost.

Definition at line 151 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::JacobianType itk::AffineTransform< TScalarType, NDimensions >::JacobianType

Definition at line 133 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::MatrixType itk::AffineTransform< TScalarType, NDimensions >::MatrixType

Definition at line 143 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::OffsetType itk::AffineTransform< TScalarType, NDimensions >::OffsetType

Definition at line 146 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::OutputCovariantVectorType itk::AffineTransform< TScalarType, NDimensions >::OutputCovariantVectorType

Definition at line 142 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::OutputPointType itk::AffineTransform< TScalarType, NDimensions >::OutputPointType

Definition at line 136 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::OutputVectorType itk::AffineTransform< TScalarType, NDimensions >::OutputVectorType

Definition at line 138 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::OutputVnlVectorType itk::AffineTransform< TScalarType, NDimensions >::OutputVnlVectorType

Definition at line 140 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::ParametersType itk::AffineTransform< TScalarType, NDimensions >::ParametersType

Parameters Type

Definition at line 132 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef SmartPointer< Self > itk::AffineTransform< TScalarType, NDimensions >::Pointer

Definition at line 114 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::ScalarType itk::AffineTransform< TScalarType, NDimensions >::ScalarType

Definition at line 134 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef AffineTransform itk::AffineTransform< TScalarType, NDimensions >::Self

Standard typedefs

Definition at line 109 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef MatrixOffsetTransformBase< TScalarType, NDimensions, NDimensions > itk::AffineTransform< TScalarType, NDimensions >::Superclass

Definition at line 112 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
typedef Superclass::TranslationType itk::AffineTransform< TScalarType, NDimensions >::TranslationType

Definition at line 147 of file itkAffineTransform.h.

Constructor & Destructor Documentation

template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::AffineTransform ( const MatrixType matrix,
const OutputVectorType offset 
)
protected

Construct an AffineTransform object

This method constructs a new AffineTransform object and
initializes the matrix and offset parts of the transformation
to values specified by the caller.  If the arguments are
omitted, then the AffineTransform is initialized to an identity
transformation in the appropriate number of dimensions.    
template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::AffineTransform ( unsigned int  paramDims)
protected

Construct an AffineTransform object

This method constructs a new AffineTransform object and
initializes the matrix and offset parts of the transformation
to values specified by the caller.  If the arguments are
omitted, then the AffineTransform is initialized to an identity
transformation in the appropriate number of dimensions.    
template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::AffineTransform ( )
protected

Construct an AffineTransform object

This method constructs a new AffineTransform object and
initializes the matrix and offset parts of the transformation
to values specified by the caller.  If the arguments are
omitted, then the AffineTransform is initialized to an identity
transformation in the appropriate number of dimensions.    
template<class TScalarType = double, unsigned int NDimensions = 3>
virtual itk::AffineTransform< TScalarType, NDimensions >::~AffineTransform ( )
protectedvirtual

Destroy an AffineTransform object

template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::AffineTransform ( const Self other)
private

Member Function Documentation

template<class TScalarType = double, unsigned int NDimensions = 3>
virtual::itk::LightObject::Pointer itk::AffineTransform< TScalarType, NDimensions >::CreateAnother ( void  ) const
virtual

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::Object.

Reimplemented in itk::AzimuthElevationToCartesianTransform< TScalarType, NDimensions >, itk::CenteredAffineTransform< TScalarType, NDimensions >, itk::FixedCenterOfRotationAffineTransform< TScalarType, NDimensions >, and itk::ScalableAffineTransform< TScalarType, NDimensions >.

template<class TScalarType = double, unsigned int NDimensions = 3>
bool itk::AffineTransform< TScalarType, NDimensions >::GetInverse ( Self inverse) const

Get an inverse of this transform.

template<class TScalarType = double, unsigned int NDimensions = 3>
virtual InverseTransformBasePointer itk::AffineTransform< TScalarType, NDimensions >::GetInverseTransform ( ) const
virtual
template<class TScalarType = double, unsigned int NDimensions = 3>
virtual const char* itk::AffineTransform< TScalarType, NDimensions >::GetNameOfClass ( ) const
virtual
template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::itkLegacyMacro ( InputPointType BackTransform(const OutputPointType &point)  const)

Back transform by an affine transformation

This method finds the point or vector that maps to a given
point or vector under the affine transformation defined by
self.  If no such point exists, an exception is thrown.
Deprecated:
Please use GetInverseTransform and then call the forward transform function
template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::itkLegacyMacro ( InputVectorType BackTransform(const OutputVectorType &vector)  const)

Back transform by an affine transformation

This method finds the point or vector that maps to a given
point or vector under the affine transformation defined by
self.  If no such point exists, an exception is thrown.
Deprecated:
Please use GetInverseTransform and then call the forward transform function
template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::itkLegacyMacro ( InputVnlVectorType BackTransform(const OutputVnlVectorType &vector)  const)

Back transform by an affine transformation

This method finds the point or vector that maps to a given
point or vector under the affine transformation defined by
self.  If no such point exists, an exception is thrown.
Deprecated:
Please use GetInverseTransform and then call the forward transform function
template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::itkLegacyMacro ( InputCovariantVectorType BackTransform(const OutputCovariantVectorType &vector)  const)

Back transform by an affine transformation

This method finds the point or vector that maps to a given
point or vector under the affine transformation defined by
self.  If no such point exists, an exception is thrown.
Deprecated:
Please use GetInverseTransform and then call the forward transform function
template<class TScalarType = double, unsigned int NDimensions = 3>
itk::AffineTransform< TScalarType, NDimensions >::itkLegacyMacro ( InputPointType BackTransformPoint(const OutputPointType &point)  const)

Back transform a point by an affine transform

This method finds the point that maps to a given point under the affine transformation defined by self. If no such point exists, an exception is thrown. The returned value is (a pointer to) a brand new point created with new.

Deprecated:
Please use GetInverseTransform and then call the forward transform function
template<class TScalarType = double, unsigned int NDimensions = 3>
ScalarType itk::AffineTransform< TScalarType, NDimensions >::Metric ( const Self other) const

Compute distance between two affine transformations

This method computes a ``distance'' between two affine transformations. This distance is guaranteed to be a metric, but not any particular metric. (At the moment, the algorithm is to collect all the elements of the matrix and offset into a vector, and compute the euclidean (L2) norm of that vector. Some metric which could be used to estimate the distance between two points transformed by the affine transformation would be more useful, but I don't have time right now to work out the mathematical details.)

template<class TScalarType = double, unsigned int NDimensions = 3>
ScalarType itk::AffineTransform< TScalarType, NDimensions >::Metric ( void  ) const

This method computes the distance from self to the identity transformation, using the same metric as the one-argument form of the Metric() method.

template<class TScalarType = double, unsigned int NDimensions = 3>
static Pointer itk::AffineTransform< TScalarType, NDimensions >::New ( )
static

New macro for creation of through a Smart Pointer

template<class TScalarType = double, unsigned int NDimensions = 3>
const Self& itk::AffineTransform< TScalarType, NDimensions >::operator= ( const Self )
private
template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::PrintSelf ( std::ostream &  s,
Indent  indent 
) const
protectedvirtual
template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::Rotate ( int  axis1,
int  axis2,
TScalarType  angle,
bool  pre = 0 
)

Compose affine transformation with an elementary rotation

This method composes self with a rotation that affects two
specified axes, replacing the current value of self.  The
rotation angle is in radians.  The axis of rotation goes
through the origin.  The transformation is given by

y[axis1] =  vcl_cos(angle)*x[axis1] + vcl_sin(angle)*x[axis2]
y[axis2] = -sin(angle)*x[axis1] + vcl_cos(angle)*x[axis2].

All coordinates other than axis1 and axis2 are unchanged;
a rotation of pi/2 radians will carry +axis1 into +axis2.
The rotation is precomposed with self if pre is true, and
postcomposed otherwise.
Note that the rotation is applied centered at the origin.  
template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::Rotate2D ( TScalarType  angle,
bool  pre = 0 
)

Compose 2D affine transformation with a rotation

This method composes self, which must be a 2D affine transformation, with a clockwise rotation through a given angle in radians. The center of rotation is the origin. The rotation is precomposed with self if pre is true, and postcomposed otherwise. Note that the rotation is applied centered at the origin.

Warning
Only to be use in two dimensions
Todo:
Find a way to generate a compile-time error is this is used with NDimensions != 2.
template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::Rotate3D ( const OutputVectorType axis,
TScalarType  angle,
bool  pre = 0 
)

Compose 3D affine transformation with a rotation

This method composes self, which must be a 3D affine transformation, with a clockwise rotation around a specified axis. The rotation angle is in radians; the axis of rotation goes through the origin. The rotation is precomposed with self if pre is true, and postcomposed otherwise. Note that the rotation is applied centered at the origin.

Warning
Only to be used in dimension 3
Todo:
Find a way to generate a compile-time error is this is used with NDimensions != 3.
template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::Scale ( const OutputVectorType factor,
bool  pre = 0 
)

Compose affine transformation with a scaling

This method modifies self to magnify the source by a given factor along each axis. If all factors are the same, or only a single factor is given, then the scaling is isotropic; otherwise it is anisotropic. If an odd number of factors are negative, then the parity of the image changes. If any of the factors is zero, then the transformation becomes a projection and is not invertible. The scaling is precomposed with self if pre is true, and postcomposed otherwise. Note that the scaling is applied centered at the origin.

template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::Scale ( const TScalarType &  factor,
bool  pre = 0 
)
template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::Shear ( int  axis1,
int  axis2,
TScalarType  coef,
bool  pre = 0 
)

Compose affine transformation with a shear

This method composes self with a shear transformation, replacing the original contents of self. The shear is precomposed with self if pre is true, and postcomposed otherwise. The transformation is given by

y[axis1] = x[axis1] + coef*x[axis2] y[axis2] = x[axis2].

Note that the shear is applied centered at the origin.

template<class TScalarType = double, unsigned int NDimensions = 3>
void itk::AffineTransform< TScalarType, NDimensions >::Translate ( const OutputVectorType offset,
bool  pre = 0 
)

Compose affine transformation with a translation

This method modifies self to include a translation of the origin. The translation is precomposed with self if pre is true, and postcomposed otherwise. This updates Translation based on current center.

Member Data Documentation

template<class TScalarType = double, unsigned int NDimensions = 3>
const unsigned int itk::AffineTransform< TScalarType, NDimensions >::InputSpaceDimension = NDimensions
static

Dimension of the domain space.

Definition at line 124 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
const unsigned int itk::AffineTransform< TScalarType, NDimensions >::OutputSpaceDimension = NDimensions
static

Dimension of the domain space.

Definition at line 125 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
const unsigned int itk::AffineTransform< TScalarType, NDimensions >::ParametersDimension = NDimensions *( NDimensions + 1 )
static

Dimension of the domain space.

Definition at line 128 of file itkAffineTransform.h.

template<class TScalarType = double, unsigned int NDimensions = 3>
const unsigned int itk::AffineTransform< TScalarType, NDimensions >::SpaceDimension = NDimensions
static

Dimension of the domain space.

Definition at line 126 of file itkAffineTransform.h.


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