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itk::ReflectiveImageRegionConstIterator< TImage > Class Template Reference
[Iterators]

Multi-dimensional image iterator which only walks a region. More...

#include <itkReflectiveImageRegionConstIterator.h>

Inheritance diagram for itk::ReflectiveImageRegionConstIterator< TImage >:

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Collaboration diagram for itk::ReflectiveImageRegionConstIterator< TImage >:

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List of all members.

Public Types

typedef ReflectiveImageRegionConstIterator Self
typedef ImageConstIteratorWithIndex<
TImage > 
Superclass
typedef TImage::IndexType IndexType
typedef TImage ImageType
typedef TImage::PixelContainer PixelContainer
typedef PixelContainer::Pointer PixelContainerPointer
typedef TImage::RegionType RegionType
typedef TImage::OffsetType OffsetType
typedef OffsetType::OffsetValueType OffsetValueType

Public Member Functions

 ReflectiveImageRegionConstIterator ()
 ~ReflectiveImageRegionConstIterator ()
 ReflectiveImageRegionConstIterator (TImage *ptr, const RegionType &region)
 ReflectiveImageRegionConstIterator (const Self &it)
 ReflectiveImageRegionConstIterator (const ImageConstIteratorWithIndex< TImage > &it)
Selfoperator= (const Self &it)
bool IsReflected (unsigned int) const
Selfoperator++ ()
void GoToBegin (void)
bool IsAtBegin (void) const
void SetBeginOffset (const OffsetType &offset)
void SetEndOffset (const OffsetType &offset)
OffsetType GetBeginOffset (const OffsetType &offset)
OffsetType GetEndOffset (const OffsetType &offset)
void FillOffsets (const OffsetValueType &value)

Detailed Description

template<typename TImage>
class itk::ReflectiveImageRegionConstIterator< TImage >

Multi-dimensional image iterator which only walks a region.

ReflectiveImageRegionConstIterator is a templated class to represent a multi-dimensional iterator. ReflectiveImageRegionConstIterator is templated over the image type. ReflectiveImageRegionConstIterator is constrained to walk only within the specified region.

ReflectiveImageRegionConstIterator will perform two passes over the image along each dimension. It is useful for algorithms that require to go back and forth (once) over the data.

By setting the BeginOffset and EndOffset parameters, you can arrange for the starting point, when going forwards, to be different from the ending point, when going backwards. Along dimension d, when going forwards the iterator traverses the interval [BeginIndex[d]+BeginOffset[d], EndIndex[d]). When going back, it traverses the interval (EndIndex[d]-EndOffset[d], BeginIndex[d]]. Setting both offsets to (1, ..., 1) enables the DanielssonDistanceMapImageFilter to process the entire image, rather than removing a one-pixel border.

See also:
DanielssonDistanceMapImageFilter

Definition at line 52 of file itkReflectiveImageRegionConstIterator.h.


Member Typedef Documentation

template<typename TImage>
typedef TImage itk::ReflectiveImageRegionConstIterator< TImage >::ImageType
 

Image typedef support. While this was already typdef'ed in the superclass it needs to be redone here for this subclass to compile properly with gcc. Note that we have to rescope Image back to itk::Image to that is it not confused with ImageIterator::Image.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 69 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
typedef TImage::IndexType itk::ReflectiveImageRegionConstIterator< TImage >::IndexType
 

Index typedef support. While this was already typdef'ed in the superclass it needs to be redone here for this subclass to compile properly with gcc. Note that we have to rescope Index back to itk::Index to that is it not confused with ImageIterator::Index.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 63 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
typedef TImage::OffsetType itk::ReflectiveImageRegionConstIterator< TImage >::OffsetType
 

Type of the Offset taken from the image. These typedefs are duplicated from the superclass for gcc support.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 87 of file itkReflectiveImageRegionConstIterator.h.

Referenced by itk::ReflectiveImageRegionConstIterator< TImage >::GetBeginOffset(), itk::ReflectiveImageRegionConstIterator< TImage >::GetEndOffset(), itk::ReflectiveImageRegionConstIterator< TImage >::SetBeginOffset(), and itk::ReflectiveImageRegionConstIterator< TImage >::SetEndOffset().

template<typename TImage>
typedef OffsetType::OffsetValueType itk::ReflectiveImageRegionConstIterator< TImage >::OffsetValueType
 

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 88 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
typedef TImage::PixelContainer itk::ReflectiveImageRegionConstIterator< TImage >::PixelContainer
 

PixelContainer typedef support. Used to refer to the container for the pixel data. While this was already typdef'ed in the superclass it needs to be redone here for this subclass to compile properly with gcc.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 75 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
typedef PixelContainer::Pointer itk::ReflectiveImageRegionConstIterator< TImage >::PixelContainerPointer
 

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 76 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
typedef TImage::RegionType itk::ReflectiveImageRegionConstIterator< TImage >::RegionType
 

Region typedef support. While this was already typdef'ed in the superclass it needs to be redone here for this subclass to compile properly with gcc. Note that we have to rescope Region back to itk::ImageRegion so that is it not confused with ImageIterator::Index.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 83 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
typedef ReflectiveImageRegionConstIterator itk::ReflectiveImageRegionConstIterator< TImage >::Self
 

Standard class typedefs.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 56 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
typedef ImageConstIteratorWithIndex<TImage> itk::ReflectiveImageRegionConstIterator< TImage >::Superclass
 

Reimplemented in itk::ReflectiveImageRegionIterator< TImage >.

Definition at line 57 of file itkReflectiveImageRegionConstIterator.h.


Constructor & Destructor Documentation

template<typename TImage>
itk::ReflectiveImageRegionConstIterator< TImage >::ReflectiveImageRegionConstIterator  ) 
 

Default constructor. Needed since we provide a cast constructor.

template<typename TImage>
itk::ReflectiveImageRegionConstIterator< TImage >::~ReflectiveImageRegionConstIterator  )  [inline]
 

Default destructor. Definition at line 94 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
itk::ReflectiveImageRegionConstIterator< TImage >::ReflectiveImageRegionConstIterator TImage *  ptr,
const RegionType region
 

Constructor establishes an iterator to walk a particular image and a particular region of that image.

template<typename TImage>
itk::ReflectiveImageRegionConstIterator< TImage >::ReflectiveImageRegionConstIterator const Self it  ) 
 

Copy Constructor. The copy constructor is provided to make sure the handle to the image is properly reference counted.

template<typename TImage>
itk::ReflectiveImageRegionConstIterator< TImage >::ReflectiveImageRegionConstIterator const ImageConstIteratorWithIndex< TImage > &  it  ) 
 

Constructor that can be used to cast from an ImageIterator to an ReflectiveImageRegionConstIterator. Many routines return an ImageIterator but for a particular task, you may want an ReflectiveImageRegionConstIterator. Rather than provide overloaded APIs that return different types of Iterators, itk returns ImageIterators and uses constructors to cast from * an ImageIterator to a ReflectiveImageRegionConstIterator.


Member Function Documentation

template<typename TImage>
void itk::ReflectiveImageRegionConstIterator< TImage >::FillOffsets const OffsetValueType value  ) 
 

Fill both offsets with a single value.

template<typename TImage>
OffsetType itk::ReflectiveImageRegionConstIterator< TImage >::GetBeginOffset const OffsetType offset  )  [inline]
 

Get the begin offset. Forward iteration starts at this offset from the current region. Definition at line 150 of file itkReflectiveImageRegionConstIterator.h.

References itk::ReflectiveImageRegionConstIterator< TImage >::OffsetType.

template<typename TImage>
OffsetType itk::ReflectiveImageRegionConstIterator< TImage >::GetEndOffset const OffsetType offset  )  [inline]
 

Get the end offset. Reverse iteration starts at this offset from the current region. Definition at line 155 of file itkReflectiveImageRegionConstIterator.h.

References itk::ReflectiveImageRegionConstIterator< TImage >::OffsetType.

template<typename TImage>
void itk::ReflectiveImageRegionConstIterator< TImage >::GoToBegin void   ) 
 

Move an iterator to the beginning of the region.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

template<typename TImage>
bool itk::ReflectiveImageRegionConstIterator< TImage >::IsAtBegin void   )  const [inline]
 

Is the iterator at the beginning of the region? Definition at line 133 of file itkReflectiveImageRegionConstIterator.h.

template<typename TImage>
bool itk::ReflectiveImageRegionConstIterator< TImage >::IsReflected unsigned  int  )  const
 

template<typename TImage>
Self& itk::ReflectiveImageRegionConstIterator< TImage >::operator++  ) 
 

Increment (prefix) the fastest moving dimension of the iterator's index. This operator will constrain the iterator within the region (i.e. the iterator will automatically wrap from the end of the row of the region to the beginning of the next row of the region) up until the iterator tries to moves past the last pixel of the region. Here, the iterator will be set to be one pixel past the end of the region.

See also:
operator++(int)

template<typename TImage>
Self& itk::ReflectiveImageRegionConstIterator< TImage >::operator= const Self it  ) 
 

operator= is provided to make sure the handle to the image is properly reference counted.

Reimplemented from itk::ImageConstIteratorWithIndex< TImage >.

template<typename TImage>
void itk::ReflectiveImageRegionConstIterator< TImage >::SetBeginOffset const OffsetType offset  )  [inline]
 

Set the begin offset. Forward iteration starts at this offset from the current region. Definition at line 140 of file itkReflectiveImageRegionConstIterator.h.

References itk::ReflectiveImageRegionConstIterator< TImage >::OffsetType.

template<typename TImage>
void itk::ReflectiveImageRegionConstIterator< TImage >::SetEndOffset const OffsetType offset  )  [inline]
 

Set the end offset. Reverse iteration starts at this offset from the current region. Definition at line 145 of file itkReflectiveImageRegionConstIterator.h.

References itk::ReflectiveImageRegionConstIterator< TImage >::OffsetType.


The documentation for this class was generated from the following file:
Generated at Sat Mar 31 02:49:50 2007 for ITK by doxygen 1.3.8 written by Dimitri van Heesch, © 1997-2000