#include <itkImageConstIteratorWithIndex.h>

Detailed Description

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

A base class for multi-dimensional iterators templated over image type that are designed to efficiently keep track of the iterator position.

ImageConstIteratorWithIndex is a templated class to represent a multi-dimensional iterator, and is templated over both the dimension and data type of the image.

ImageConstIteratorWithIndex is a base class for the "WithIndex" family of ITK image iterators, which are designed to efficiently keep track of the image index position of the iterator during increment and decrement operations. This iterator is a base class and provides only the basic construction and comparison operations. It does not provide mechanisms for moving the iterator. A subclass of ImageConstIteratorWithIndex must be used to move the iterator.

ImageConstIteratorWithIndex 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, ImageConstIteratorWithIndex holds a reference to the image over which it is traversing.

ImageConstIteratorWithIndex assumes a particular layout of the image data. In particular, the data is arranged in a 1D array as if it were [][][][slice][row][col] with Index[0] = col, Index[1] = row, Index[2] = slice, etc.

MORE INFORMATION: For a complete description of the ITK Image Iterators and their API, please see the Iterators chapter in the ITK Software Guide. The ITK Software Guide is available in print and as a free .pdf download from https://www.itk.org.

See also: ImageConstIterator; ConditionalConstIterator; ConstNeighborhoodIterator; ConstShapedNeighborhoodIterator; ConstSliceIterator; CorrespondenceDataStructureIterator; FloodFilledFunctionConditionalConstIterator; FloodFilledImageFunctionConditionalConstIterator; FloodFilledImageFunctionConditionalIterator; FloodFilledSpatialFunctionConditionalConstIterator; FloodFilledSpatialFunctionConditionalIterator; ImageConstIterator; ImageConstIteratorWithIndex; ImageIterator; ImageIteratorWithIndex; ImageLinearConstIteratorWithIndex; ImageLinearIteratorWithIndex; ImageRandomConstIteratorWithIndex; ImageRandomIteratorWithIndex; ImageRegionConstIterator; ImageRegionConstIteratorWithIndex; ImageRegionExclusionConstIteratorWithIndex; ImageRegionExclusionIteratorWithIndex; ImageRegionIterator; ImageRegionIteratorWithIndex; ImageRegionReverseConstIterator; ImageRegionReverseIterator; ImageReverseConstIterator; ImageReverseIterator; ImageSliceConstIteratorWithIndex; ImageSliceIteratorWithIndex; NeighborhoodIterator; PathConstIterator; PathIterator; ShapedNeighborhoodIterator; SliceIterator

Definition at line 92 of file itkImageConstIteratorWithIndex.h.

Inheritance diagram for itk::ImageConstIteratorWithIndex< TImage >:

Public Types
using	AccessorFunctorType = typename TImage::AccessorFunctorType

using	AccessorType = typename TImage::AccessorType

using	ImageType = TImage

using	IndexType = typename TImage::IndexType

using	IndexValueType = typename IndexType::IndexValueType

using	InternalPixelType = typename TImage::InternalPixelType

using	OffsetType = typename TImage::OffsetType

using	OffsetValueType = typename OffsetType::OffsetValueType

using	PixelContainer = typename TImage::PixelContainer

using	PixelContainerPointer = typename PixelContainer::Pointer

using	PixelType = typename TImage::PixelType

using	RegionType = typename TImage::RegionType

using	Self = ImageConstIteratorWithIndex

using	SizeType = typename TImage::SizeType

using	SizeValueType = typename SizeType::SizeValueType

Public Member Functions
PixelType	Get () const

const IndexType &	GetIndex () const

const RegionType &	GetRegion () const

void	GoToBegin ()

void	GoToReverseBegin ()

	ImageConstIteratorWithIndex ()=default

	ImageConstIteratorWithIndex (const Self &it)

	ImageConstIteratorWithIndex (const TImage *ptr, const RegionType &region)

bool	IsAtEnd () const

bool	IsAtReverseEnd () const

	ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION (Self)

bool	operator< (const Self &it) const

bool	operator<= (const Self &it) const

Self &	operator= (const Self &it)

bool	operator== (const Self &it) const

bool	operator> (const Self &it) const

bool	operator>= (const Self &it) const

bool	Remaining ()

const PixelType &	Value () const

virtual	~ImageConstIteratorWithIndex ()=default


void	SetIndex (const IndexType &ind)

Static Public Member Functions
static constexpr unsigned int	GetImageDimension ()

Static Public Attributes
static constexpr unsigned int	ImageDimension = TImage::ImageDimension

Protected Attributes
const InternalPixelType *	m_Begin { nullptr }

IndexType	m_BeginIndex { { 0 } }

const InternalPixelType *	m_End { nullptr }

IndexType	m_EndIndex { { 0 } }

TImage::ConstWeakPointer	m_Image {}

OffsetValueType	m_OffsetTable [ImageDimension+1] {}

AccessorType	m_PixelAccessor {}

AccessorFunctorType	m_PixelAccessorFunctor {}

const InternalPixelType *	m_Position { nullptr }

IndexType	m_PositionIndex { { 0 } }

RegionType	m_Region {}

bool	m_Remaining { false }

Member Typedef Documentation

◆ AccessorFunctorType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::AccessorFunctorType = typename TImage::AccessorFunctorType

Definition at line 133 of file itkImageConstIteratorWithIndex.h.

◆ AccessorType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::AccessorType = typename TImage::AccessorType

Accessor type that converts data between internal and external representations.

Definition at line 132 of file itkImageConstIteratorWithIndex.h.

◆ ImageType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::ImageType = TImage

Image type alias support

Definition at line 116 of file itkImageConstIteratorWithIndex.h.

◆ IndexType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::IndexType = typename TImage::IndexType

Index type alias support

Definition at line 105 of file itkImageConstIteratorWithIndex.h.

◆ IndexValueType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::IndexValueType = typename IndexType::IndexValueType

Definition at line 106 of file itkImageConstIteratorWithIndex.h.

◆ InternalPixelType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::InternalPixelType = typename TImage::InternalPixelType

Internal Pixel Type

Definition at line 125 of file itkImageConstIteratorWithIndex.h.

◆ OffsetType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::OffsetType = typename TImage::OffsetType

Type of the Offset taken from the image

Definition at line 136 of file itkImageConstIteratorWithIndex.h.

◆ OffsetValueType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::OffsetValueType = typename OffsetType::OffsetValueType

Definition at line 137 of file itkImageConstIteratorWithIndex.h.

◆ PixelContainer

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::PixelContainer = typename TImage::PixelContainer

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

Definition at line 121 of file itkImageConstIteratorWithIndex.h.

◆ PixelContainerPointer

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::PixelContainerPointer = typename PixelContainer::Pointer

Definition at line 122 of file itkImageConstIteratorWithIndex.h.

◆ PixelType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::PixelType = typename TImage::PixelType

External Pixel Type

Definition at line 128 of file itkImageConstIteratorWithIndex.h.

◆ RegionType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::RegionType = typename TImage::RegionType

Region type alias support

Definition at line 113 of file itkImageConstIteratorWithIndex.h.

◆ Self

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::Self = ImageConstIteratorWithIndex

Standard class type aliases.

Definition at line 96 of file itkImageConstIteratorWithIndex.h.

◆ SizeType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::SizeType = typename TImage::SizeType

Size type alias support

Definition at line 109 of file itkImageConstIteratorWithIndex.h.

◆ SizeValueType

template<typename TImage>

using itk::ImageConstIteratorWithIndex< TImage >::SizeValueType = typename SizeType::SizeValueType

Definition at line 110 of file itkImageConstIteratorWithIndex.h.

Constructor & Destructor Documentation

◆ ImageConstIteratorWithIndex() [1/3]

template<typename TImage>

itk::ImageConstIteratorWithIndex< TImage >::ImageConstIteratorWithIndex ( )

default

Default Constructor. Need to provide a default constructor since we provide a copy constructor.

◆ ImageConstIteratorWithIndex() [2/3]

template<typename TImage>

itk::ImageConstIteratorWithIndex< TImage >::ImageConstIteratorWithIndex ( const Self & it )

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

◆ ImageConstIteratorWithIndex() [3/3]

template<typename TImage>

itk::ImageConstIteratorWithIndex< TImage >::ImageConstIteratorWithIndex	(	const TImage *	ptr,
		const RegionType &	region
	)

Constructor establishes an iterator to walk a particular image and a particular region of that image. Initializes the iterator at the begin of the region.

◆ ~ImageConstIteratorWithIndex()

template<typename TImage>

virtual itk::ImageConstIteratorWithIndex< TImage >::~ImageConstIteratorWithIndex ( )

virtualdefault

Default Destructor.

Member Function Documentation

◆ Get()

template<typename TImage>

PixelType itk::ImageConstIteratorWithIndex< TImage >::Get ( ) const

inline

Get the pixel value

Definition at line 245 of file itkImageConstIteratorWithIndex.h.

◆ GetImageDimension()

template<typename TImage>

static constexpr unsigned int itk::ImageConstIteratorWithIndex< TImage >::GetImageDimension ( )

inlinestaticconstexpr

Get the dimension (size) of the index.

Definition at line 161 of file itkImageConstIteratorWithIndex.h.

◆ GetIndex()

template<typename TImage>

const IndexType& itk::ImageConstIteratorWithIndex< TImage >::GetIndex ( ) const

inline

Get the index. This provides a read only reference to the index.

See also: SetIndex

Definition at line 220 of file itkImageConstIteratorWithIndex.h.

Referenced by itk::ConstrainedRegionBasedLevelSetFunctionSharedData< TInputImage, TFeatureImage, TSingleData >::PopulateListImage().

◆ GetRegion()

template<typename TImage>

const RegionType& itk::ImageConstIteratorWithIndex< TImage >::GetRegion ( ) const

inline

Get the region that this iterator walks. ImageIterators know the beginning and the end of the region of the image to iterate over.

Definition at line 228 of file itkImageConstIteratorWithIndex.h.

◆ GoToBegin()

template<typename TImage>

void itk::ImageConstIteratorWithIndex< TImage >::GoToBegin ( )

Move an iterator to the beginning of the region.

Examples: Examples/DataRepresentation/Image/ImageAdaptor1.cxx, SphinxExamples/src/Numerics/Statistics/ComputeHistogramOfMaskedRegion/Code.cxx, and SphinxExamples/src/Segmentation/Classifiers/KMeansClusterOfPixelsInImage/Code.cxx.

Referenced by itk::ConstrainedRegionBasedLevelSetFunctionSharedData< TInputImage, TFeatureImage, TSingleData >::PopulateListImage(), and itk::FastMarchingImageFilter< TLevelSet, TSpeedImage >::SetBinaryMask().

◆ GoToReverseBegin()

template<typename TImage>

void itk::ImageConstIteratorWithIndex< TImage >::GoToReverseBegin ( )

Move an iterator to the End of the region.

◆ IsAtEnd()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::IsAtEnd ( ) const

inline

Is the iterator at the end of the region?

Definition at line 276 of file itkImageConstIteratorWithIndex.h.

Referenced by itk::ConstrainedRegionBasedLevelSetFunctionSharedData< TInputImage, TFeatureImage, TSingleData >::PopulateListImage().

◆ IsAtReverseEnd()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::IsAtReverseEnd ( ) const

inline

Is the iterator at the beginning of the region?

Definition at line 269 of file itkImageConstIteratorWithIndex.h.

◆ ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION()

template<typename TImage>

itk::ImageConstIteratorWithIndex< TImage >::ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION ( Self )

◆ operator<()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::operator< ( const Self & it ) const

inline

Comparison operator. An iterator is "less than" another if it "points to" a lower memory location.

Definition at line 190 of file itkImageConstIteratorWithIndex.h.

◆ operator<=()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::operator<= ( const Self & it ) const

inline

Comparison operator. An iterator is "less than" another if it "points to" a lower memory location.

Definition at line 180 of file itkImageConstIteratorWithIndex.h.

◆ operator=()

template<typename TImage>

Self& itk::ImageConstIteratorWithIndex< TImage >::operator= ( const Self & it )

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

◆ operator==()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::operator== ( const Self & it ) const

inline

Comparison operator. Two iterators are the same if they "point to" the same memory location

Definition at line 169 of file itkImageConstIteratorWithIndex.h.

◆ operator>()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::operator> ( const Self & it ) const

inline

Comparison operator. An iterator is "greater than" another if it "points to" a higher location.

Definition at line 210 of file itkImageConstIteratorWithIndex.h.

◆ operator>=()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::operator>= ( const Self & it ) const

inline

Comparison operator. An iterator is "greater than" another if it "points to" a higher location.

Definition at line 200 of file itkImageConstIteratorWithIndex.h.

◆ Remaining()

template<typename TImage>

bool itk::ImageConstIteratorWithIndex< TImage >::Remaining ( )

inline

Are there data remaining in the region ?

Definition at line 283 of file itkImageConstIteratorWithIndex.h.

◆ SetIndex()

template<typename TImage>

void itk::ImageConstIteratorWithIndex< TImage >::SetIndex ( const IndexType & ind )

inline

Set the index. No bounds checking is performed.

See also: GetIndex

Definition at line 236 of file itkImageConstIteratorWithIndex.h.

◆ Value()

template<typename TImage>

const PixelType& itk::ImageConstIteratorWithIndex< TImage >::Value ( ) const

inline

Return a const reference to the pixel This method will provide the fastest access to pixel data, but it will NOT support ImageAdaptors.

Definition at line 254 of file itkImageConstIteratorWithIndex.h.

Member Data Documentation

◆ ImageDimension

template<typename TImage>

constexpr unsigned int itk::ImageConstIteratorWithIndex< TImage >::ImageDimension = TImage::ImageDimension

staticconstexpr

Dimension of the image that the iterator walks. This constant is needed so 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 102 of file itkImageConstIteratorWithIndex.h.