ITK
4.3.0
Insight Segmentation and Registration Toolkit
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#include <itkImageRegionReverseConstIterator.h>
A multi-dimensional image iterator designed to walk a specified image region in reverse.
ImageRegionReverseConstIterator is a templated class to represent a multi-dimensional iterator. ImageRegionReverseConstIterator is templated over the dimension of the image and the data type of the image. ImageRegionReverseConstIterator is constrained to walk only within the specified region.
ImageRegionReverseConstIterator is a multi-dimensional iterator, requiring more information be specified before the iterator can be used than conventional iterators. Whereas the std::vector::iterator from the STL only needs to be passed a pointer to establish the iterator, the multi-dimensional image iterator needs a pointer, the size of the buffer, the size of the region, the start index of the buffer, and the start index of the region. To gain access to this information, ImageRegionReverseConstIterator holds a reference to the image over which it is traversing.
ImageRegionReverseConstIterator assumes a particular layout of the image data. The is arranged in a 1D array as if it were [][][][slice][row][col] with Index[0] = col, Index[1] = row, Index[2] = slice, etc.
operator++ provides a simple syntax for walking around a region of a multidimensional image. For a reverse iterator, operator++ moves backwards through the region. operator++ iterates across a row, constraining the movement to within a region of image. When the iterator reaches the boundary of the region along a row, the iterator automatically wraps to the previous row, starting at the last pixel in the row that is part of the region. This allows for simple processing loops of the form:
Definition at line 103 of file itkImageRegionReverseConstIterator.h.
Protected Attributes | |
SizeValueType | m_SpanBeginOffset |
SizeValueType | m_SpanEndOffset |
Protected Attributes inherited from itk::ImageReverseConstIterator< TImage > | |
ImageType::ConstWeakPointer | m_Image |
RegionType | m_Region |
SizeValueType | m_Offset |
SizeValueType | m_BeginOffset |
SizeValueType | m_EndOffset |
const InternalPixelType * | m_Buffer |
AccessorType | m_PixelAccessor |
AccessorFunctorType | m_PixelAccessorFunctor |
Additional Inherited Members | |
Static Public Member Functions inherited from itk::ImageReverseConstIterator< TImage > | |
static unsigned int | GetImageIteratorDimension () |
Static Public Attributes inherited from itk::ImageReverseConstIterator< TImage > | |
static const unsigned int | ImageIteratorDimension = TImage::ImageDimension |
typedef Superclass::AccessorType itk::ImageRegionReverseConstIterator< TImage >::AccessorType |
Accessor type that convert data between internal and external representations.
Definition at line 150 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::ImageType itk::ImageRegionReverseConstIterator< 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.
Definition at line 134 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::IndexType itk::ImageRegionReverseConstIterator< 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.
Definition at line 119 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::InternalPixelType itk::ImageRegionReverseConstIterator< TImage >::InternalPixelType |
Internal Pixel Type
Definition at line 143 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::OffsetType itk::ImageRegionReverseConstIterator< TImage >::OffsetType |
Offset 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.
Definition at line 127 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::PixelContainer itk::ImageRegionReverseConstIterator< 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.
Definition at line 139 of file itkImageRegionReverseConstIterator.h.
typedef PixelContainer::Pointer itk::ImageRegionReverseConstIterator< TImage >::PixelContainerPointer |
Definition at line 140 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::PixelType itk::ImageRegionReverseConstIterator< TImage >::PixelType |
External Pixel Type
Definition at line 146 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::RegionType itk::ImageRegionReverseConstIterator< TImage >::RegionType |
Region typedef support.
Definition at line 130 of file itkImageRegionReverseConstIterator.h.
typedef ImageRegionReverseConstIterator itk::ImageRegionReverseConstIterator< TImage >::Self |
Standard class typedefs.
Definition at line 108 of file itkImageRegionReverseConstIterator.h.
typedef Superclass::SizeType itk::ImageRegionReverseConstIterator< TImage >::SizeType |
Size 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.
Definition at line 123 of file itkImageRegionReverseConstIterator.h.
typedef ImageReverseConstIterator< TImage > itk::ImageRegionReverseConstIterator< TImage >::Superclass |
Definition at line 109 of file itkImageRegionReverseConstIterator.h.
anonymous enum |
Dimension of the image the iterator walks. This enum is needed so that functions that are templated over image iterator type (as opposed to being templated over pixel type and dimension) can have compile time access to the dimension of the image that the iterator walks.
Definition at line 115 of file itkImageRegionReverseConstIterator.h.
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Default constructor. Needed since we provide a cast constructor.
Definition at line 156 of file itkImageRegionReverseConstIterator.h.
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Constructor establishes an iterator to walk a particular image and a particular region of that image.
Definition at line 164 of file itkImageRegionReverseConstIterator.h.
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Constructor that can be used to cast from an ImageIterator to an ImageRegionReverseConstIterator. Many routines return an ImageIterator but for a particular task, you may want an ImageRegionReverseConstIterator. Rather than provide overloaded APIs that return different types of Iterators, itk returns ImageIterators and uses constructors to cast from an ImageIterator to a ImageRegionReverseConstIterator.
Definition at line 179 of file itkImageRegionReverseConstIterator.h.
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Constructor that takes in a reverse image iterator. This can be used to cast between the various types of reverse image iterators.
Definition at line 190 of file itkImageRegionReverseConstIterator.h.
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Constructor that takes in an image region iterator. This can be used to cast between the various types of reverse image iterators.
Definition at line 201 of file itkImageRegionReverseConstIterator.h.
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Run-time type information (and related methods).
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Move an iterator to the beginning of the region. "Begin" for a reverse iterator is the last pixel in the region.
Definition at line 212 of file itkImageRegionReverseConstIterator.h.
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Move an iterator to the end of the region. "End" for a reverse iterator is defined as one pixel before the first pixel in the region.
Definition at line 223 of file itkImageRegionReverseConstIterator.h.
itk::ImageRegionReverseConstIterator< TImage >::itkLegacyMacro | ( | Self Begin(void) | const | ) |
Return an iterator for the beginning of the region. "Begin" for a reverse iterator is the last pixel in the region.
itk::ImageRegionReverseConstIterator< TImage >::itkLegacyMacro | ( | Self End(void) | const | ) |
Return an iterator for the end of the region. "End" for a reverse iterator is one pixel before the first pixel in the region.
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iterator's index. For a reverse iterator, this moves backwards through the region. This operator will constrain the iterator within the region (i.e. the iterator will automatically wrap from the start of the row of the region to the end of the previous row of the region) up until the iterator tries to moves before the first pixel of the region. Here, the iterator will be set to be one pixel before the start of the region.
Definition at line 264 of file itkImageRegionReverseConstIterator.h.
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Decrement (prefix) the fastest moving dimension of the iterator's index. For a reverse iterator, this moves forward through the region. 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 start 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.
Definition at line 322 of file itkImageRegionReverseConstIterator.h.
References itk::ImageReverseConstIterator< TImage >::GetIndex().
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Set the index. No bounds checking is performed. This is overridden from the parent because we have an extra ivar.
Reimplemented from itk::ImageReverseConstIterator< TImage >.
Definition at line 246 of file itkImageRegionReverseConstIterator.h.
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Definition at line 373 of file itkImageRegionReverseConstIterator.h.
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Definition at line 374 of file itkImageRegionReverseConstIterator.h.