itk::ZeroFluxNeumannBoundaryCondition< TImage > Class Template Reference
[Data Representation Objects, Image Representation Objects]

#include <itkZeroFluxNeumannBoundaryCondition.h>

Inheritance diagram for itk::ZeroFluxNeumannBoundaryCondition< TImage >:

[legend]Collaboration diagram for itk::ZeroFluxNeumannBoundaryCondition< TImage >:

[legend]List of all members.

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Detailed Description

template<class TImage>
class itk::ZeroFluxNeumannBoundaryCondition< TImage >

A function object that determines a neighborhood of values at an image boundary according to a Neumann boundary condition where first, upwind derivatives on the boundary are zero. This is a useful condition in solving some classes of differential equations.

For example, invoking this function object on a 7x5 iterator that masks a region at an image corner (iterator is centered on the 2):

* * * * * * * * * * * * * * * * 1 2 3 4 5 (where * denotes pixels that lie * * 3 3 5 5 6 outside of the image boundary) * * 4 4 6 7 8

returns the following neighborhood of values:

1 1 1 2 3 4 5 1 1 1 2 3 4 5 1 1 1 2 3 4 5 3 3 3 3 5 5 6 (note the corner values) 4 4 4 4 6 7 8

The input to this function object is a neighborhood iterator. This boundary condition object is designed to be given as a template argument to a NeighborhoodIterator or any of the NeighborhoodIterator subclasses.

Definition at line 58 of file itkZeroFluxNeumannBoundaryCondition.h.

Public Types
typedef Superclass::IndexType	IndexType
typedef Superclass::NeighborhoodAccessorFunctorType	NeighborhoodAccessorFunctorType
typedef Superclass::NeighborhoodType	NeighborhoodType
typedef Superclass::OffsetType	OffsetType
typedef Superclass::PixelPointerType	PixelPointerType
typedef Superclass::PixelType	PixelType
typedef ZeroFluxNeumannBoundaryCondition	Self
typedef ImageBoundaryCondition< TImage >	Superclass
Public Member Functions
	ImageBoundaryCondition ()
	itkStaticConstMacro (ImageDimension, unsigned int, TImage::ImageDimension)
	itkStaticConstMacro (ImageDimension, unsigned int, Superclass::ImageDimension)
virtual PixelType	operator() (const OffsetType &point_index, const OffsetType &boundary_offset, const NeighborhoodType *data, const NeighborhoodAccessorFunctorType &neighborhoodAccessorFunctor) const =0
virtual PixelType	operator() (const OffsetType &point_index, const OffsetType &boundary_offset, const NeighborhoodType *data) const
Tell if the boundary condition can index to any location within *the associated iterator s neighborhood or if it has some limited *	subset (such as none) that it relies upon.*Subclasses should override this method if they can safely limit *indexes to active pixels(or no pixels).*/virtual bool RequiresCompleteNeighborhood()
	ZeroFluxNeumannBoundaryCondition ()
Public Attributes
Computes and returns the appropriate pixel value from *neighborhood iterator	data

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Member Typedef Documentation

template<class TImage> typedef Superclass::IndexType itk::ZeroFluxNeumannBoundaryCondition< TImage >::IndexType

Reimplemented from itk::ImageBoundaryCondition< TImage >. Definition at line 69 of file itkZeroFluxNeumannBoundaryCondition.h.

template<class TImage> typedef Superclass::NeighborhoodAccessorFunctorType itk::ZeroFluxNeumannBoundaryCondition< TImage >::NeighborhoodAccessorFunctorType

Functor used to access pixels from a neighborhood of pixel pointers Reimplemented from itk::ImageBoundaryCondition< TImage >. Definition at line 74 of file itkZeroFluxNeumannBoundaryCondition.h.

template<class TImage> typedef Superclass::NeighborhoodType itk::ZeroFluxNeumannBoundaryCondition< TImage >::NeighborhoodType

Type of the data container passed to this function object. Reimplemented from itk::ImageBoundaryCondition< TImage >. Definition at line 71 of file itkZeroFluxNeumannBoundaryCondition.h.

template<class TImage> typedef Superclass::OffsetType itk::ZeroFluxNeumannBoundaryCondition< TImage >::OffsetType

Reimplemented from itk::ImageBoundaryCondition< TImage >. Definition at line 70 of file itkZeroFluxNeumannBoundaryCondition.h.

template<class TImage> typedef Superclass::PixelPointerType itk::ZeroFluxNeumannBoundaryCondition< TImage >::PixelPointerType

Reimplemented from itk::ImageBoundaryCondition< TImage >. Definition at line 68 of file itkZeroFluxNeumannBoundaryCondition.h.

template<class TImage> typedef Superclass::PixelType itk::ZeroFluxNeumannBoundaryCondition< TImage >::PixelType

Extract information from the image type. Reimplemented from itk::ImageBoundaryCondition< TImage >. Definition at line 67 of file itkZeroFluxNeumannBoundaryCondition.h.

template<class TImage> typedef ZeroFluxNeumannBoundaryCondition itk::ZeroFluxNeumannBoundaryCondition< TImage >::Self

Standard class typedefs. Reimplemented from itk::ImageBoundaryCondition< TImage >. Definition at line 63 of file itkZeroFluxNeumannBoundaryCondition.h.

template<class TImage> typedef ImageBoundaryCondition<TImage> itk::ZeroFluxNeumannBoundaryCondition< TImage >::Superclass

Definition at line 64 of file itkZeroFluxNeumannBoundaryCondition.h.

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Constructor & Destructor Documentation

template<class TImage> itk::ZeroFluxNeumannBoundaryCondition< TImage >::ZeroFluxNeumannBoundaryCondition (   )  [inline]

Default constructor. Definition at line 80 of file itkZeroFluxNeumannBoundaryCondition.h.

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Member Function Documentation

itk::ImageBoundaryCondition< TImage >::ImageBoundaryCondition (   )  [inline, inherited]

Default constructor. Definition at line 78 of file itkImageBoundaryCondition.h.

itk::ImageBoundaryCondition< TImage >::itkStaticConstMacro (  ImageDimension  , unsigned  int, TImage ::ImageDimension  )  [inherited]

Extract information from the image type

template<class TImage> itk::ZeroFluxNeumannBoundaryCondition< TImage >::itkStaticConstMacro (  ImageDimension  , unsigned  int, Superclass::ImageDimension  )

Extract information from the image type.

virtual PixelType itk::ImageBoundaryCondition< TImage >::operator() (  const OffsetType &  point_index, const OffsetType &  boundary_offset, const NeighborhoodType *  data, const NeighborhoodAccessorFunctorType &  neighborhoodAccessorFunctor )  const [pure virtual, inherited]

Computes and returns the appropriate pixel value from neighborhood iterator data, using the functor. Implemented in itk::ConstantBoundaryCondition< TImage >.

template<class TImage> virtual PixelType itk::ZeroFluxNeumannBoundaryCondition< TImage >::operator() (  const OffsetType &  point_index, const OffsetType &  boundary_offset, const NeighborhoodType *  data )  const [virtual]

Computes and returns a neighborhood of appropriate values from neighborhood iterator data.. Implements itk::ImageBoundaryCondition< TImage >.

Tell if the boundary condition can index to any location within* the associated iterator s neighborhood or if it has some limited* itk::ImageBoundaryCondition< TImage >::subset (  such as  none  )  [inline, inherited]

Definition at line 100 of file itkImageBoundaryCondition.h.

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Member Data Documentation

template<class TImage> Computes and returns the appropriate pixel value from* neighborhood iterator itk::ZeroFluxNeumannBoundaryCondition< TImage >::data

Definition at line 89 of file itkZeroFluxNeumannBoundaryCondition.h.

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

• itkZeroFluxNeumannBoundaryCondition.h

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