#include <itkIndexRange.h>

Detailed Description

template<unsigned int VDimension, bool VBeginAtZero>
class itk::IndexRange< VDimension, VBeginAtZero >

Modern C++11 range, supporting efficient iteration over the indices of an image grid space.

The following example prints all indices of an 2-D grid space of size 2x3.

constexpr unsigned int Dimension{ 2 };
const Size<Dimension> size = { {2, 3} };
const ZeroBasedIndexRange<Dimension> indexRange{ size };
 
for (const Index<Dimension> index : indexRange)
{
  std::cout << index;
}
// Output: "[0, 0][1, 0][0, 1][1, 1][0, 2][1, 2]"

The indices from IndexRange can also be used as consecutive locations of a ShapedImageNeighborhoodRange, for example:

for (const auto index : indexRange)
{
  shapedImageNeighborhoodRange.SetLocation(index);
 
  for (const PixelType neighborPixel : shapedImageNeighborhoodRange)
  {
    // Process neighbor pixel...
  }
}

IndexRange is designed to conform to Standard C++ Iterator requirements, so that it can be used in range-based for loop, and its iterators can be passed to Standard C++ algorithms.

Author: Niels Dekker, LKEB, Leiden University Medical Center

See also: ShapedImageNeighborhoodRange

Definition at line 78 of file itkIndexRange.h.

Collaboration diagram for itk::IndexRange< VDimension, VBeginAtZero >:

Classes
class	const_iterator

Public Types
using	const_reverse_iterator = std::reverse_iterator<const_iterator>

using	IndexType = Index<VDimension>

using	iterator = const_iterator

using	reverse_iterator = std::reverse_iterator<iterator>

using	SizeType = Size<VDimension>

Public Member Functions
constexpr iterator	begin () const noexcept

constexpr const_iterator	cbegin () const noexcept

constexpr const_iterator	cend () const noexcept

const_reverse_iterator	crbegin () const noexcept

const_reverse_iterator	crend () const noexcept

constexpr bool	empty () const noexcept

constexpr iterator	end () const noexcept

	IndexRange ()=default

template<bool VIsSubstitutionFailure = VBeginAtZero, typename TVoid = std::enable_if_t<!VIsSubstitutionFailure>>
	IndexRange (const ImageRegion< VDimension > &imageRegion)

constexpr	IndexRange (const SizeType &gridSize)

reverse_iterator	rbegin () const noexcept

reverse_iterator	rend () const noexcept

constexpr vcl_size_t	size () const noexcept

Static Public Attributes
static constexpr unsigned int	Dimension = VDimension

Private Types
using	MinIndexType = typename iterator::MinIndexType

Static Private Member Functions
static constexpr IndexType	CalculateMaxIndex (const MinIndexType &minIndex, const SizeType &size)

Private Attributes
IndexType	m_MaxIndex = IndexType::Filled(-1)

MinIndexType	m_MinIndex {}

Member Typedef Documentation

◆ const_reverse_iterator

template<unsigned int VDimension, bool VBeginAtZero>

using itk::IndexRange< VDimension, VBeginAtZero >::const_reverse_iterator = std::reverse_iterator<const_iterator>

Definition at line 305 of file itkIndexRange.h.

◆ IndexType

template<unsigned int VDimension, bool VBeginAtZero>

using itk::IndexRange< VDimension, VBeginAtZero >::IndexType = Index<VDimension>

Definition at line 83 of file itkIndexRange.h.

◆ iterator

template<unsigned int VDimension, bool VBeginAtZero>

using itk::IndexRange< VDimension, VBeginAtZero >::iterator = const_iterator

Definition at line 303 of file itkIndexRange.h.

◆ MinIndexType

template<unsigned int VDimension, bool VBeginAtZero>

using itk::IndexRange< VDimension, VBeginAtZero >::MinIndexType = typename iterator::MinIndexType

private

Definition at line 433 of file itkIndexRange.h.

◆ reverse_iterator

template<unsigned int VDimension, bool VBeginAtZero>

using itk::IndexRange< VDimension, VBeginAtZero >::reverse_iterator = std::reverse_iterator<iterator>

Definition at line 304 of file itkIndexRange.h.

◆ SizeType

template<unsigned int VDimension, bool VBeginAtZero>

using itk::IndexRange< VDimension, VBeginAtZero >::SizeType = Size<VDimension>

Definition at line 82 of file itkIndexRange.h.

Constructor & Destructor Documentation

◆ IndexRange() [1/3]

template<unsigned int VDimension, bool VBeginAtZero>

itk::IndexRange< VDimension, VBeginAtZero >::IndexRange ( )

default

Explicitly defaulted default-constructor. Constructs an empty range.

Note: The other five "special member functions" (copy-constructor, copy-assignment operator, move-constructor, move-assignment operator, and destructor) are implicitly defaulted, following the C++ "Rule of Zero".

◆ IndexRange() [2/3]

template<unsigned int VDimension, bool VBeginAtZero>

itk::IndexRange< VDimension, VBeginAtZero >::IndexRange ( const SizeType & gridSize )

inlineexplicitconstexpr

Constructs a range of indices for the specified grid size.

Definition at line 317 of file itkIndexRange.h.

◆ IndexRange() [3/3]

template<unsigned int VDimension, bool VBeginAtZero>

template<bool VIsSubstitutionFailure = VBeginAtZero, typename TVoid = std::enable_if_t<!VIsSubstitutionFailure>>

itk::IndexRange< VDimension, VBeginAtZero >::IndexRange ( const ImageRegion< VDimension > & imageRegion )

inlineexplicit

Constructs a range of indices for the specified image region.

Note: This function is unavailable when VBeginAtZero is true (in case there is a substitution failure, and C++ "SFINAE" kicks in).

Definition at line 331 of file itkIndexRange.h.

Member Function Documentation

◆ begin()

template<unsigned int VDimension, bool VBeginAtZero>

iterator itk::IndexRange< VDimension, VBeginAtZero >::begin ( ) const

inlinenodiscardconstexprnoexcept

Returns an iterator to the first index.

Definition at line 348 of file itkIndexRange.h.

Referenced by itk::IndexRange< VDimension, false >< InputImageType::ImageDimension >::cbegin(), and itk::IndexRange< VDimension, false >< InputImageType::ImageDimension >::rend().

◆ CalculateMaxIndex()

template<unsigned int VDimension, bool VBeginAtZero>

static constexpr IndexType itk::IndexRange< VDimension, VBeginAtZero >::CalculateMaxIndex	(	const MinIndexType &	minIndex,
		const SizeType &	size )

inlinestaticconstexprprivate

Definition at line 436 of file itkIndexRange.h.

◆ cbegin()

template<unsigned int VDimension, bool VBeginAtZero>

const_iterator itk::IndexRange< VDimension, VBeginAtZero >::cbegin ( ) const

inlinenodiscardconstexprnoexcept

Returns a const iterator to the first index. Provides only read-only access to the index data.

Definition at line 365 of file itkIndexRange.h.

◆ cend()

template<unsigned int VDimension, bool VBeginAtZero>

const_iterator itk::IndexRange< VDimension, VBeginAtZero >::cend ( ) const

inlinenodiscardconstexprnoexcept

Returns a const 'end iterator' for this range.

Definition at line 372 of file itkIndexRange.h.

◆ crbegin()

template<unsigned int VDimension, bool VBeginAtZero>

const_reverse_iterator itk::IndexRange< VDimension, VBeginAtZero >::crbegin ( ) const

inlinenodiscardnoexcept

Returns a const reverse 'begin iterator' for this range.

Definition at line 393 of file itkIndexRange.h.

◆ crend()

template<unsigned int VDimension, bool VBeginAtZero>

const_reverse_iterator itk::IndexRange< VDimension, VBeginAtZero >::crend ( ) const

inlinenodiscardnoexcept

Returns a const reverse 'end iterator' for this range.

Definition at line 400 of file itkIndexRange.h.

◆ empty()

template<unsigned int VDimension, bool VBeginAtZero>

bool itk::IndexRange< VDimension, VBeginAtZero >::empty ( ) const

inlinenodiscardconstexprnoexcept

Tells whether the range is empty.

Definition at line 422 of file itkIndexRange.h.

◆ end()

template<unsigned int VDimension, bool VBeginAtZero>

iterator itk::IndexRange< VDimension, VBeginAtZero >::end ( ) const

inlinenodiscardconstexprnoexcept

Returns an 'end iterator' for this range.

Definition at line 355 of file itkIndexRange.h.

Referenced by itk::IndexRange< VDimension, false >< InputImageType::ImageDimension >::cend(), and itk::IndexRange< VDimension, false >< InputImageType::ImageDimension >::rbegin().

◆ rbegin()

template<unsigned int VDimension, bool VBeginAtZero>

reverse_iterator itk::IndexRange< VDimension, VBeginAtZero >::rbegin ( ) const

inlinenodiscardnoexcept

Returns a reverse 'begin iterator' for this range.

Definition at line 379 of file itkIndexRange.h.

Referenced by itk::IndexRange< VDimension, false >< InputImageType::ImageDimension >::crbegin().

◆ rend()

template<unsigned int VDimension, bool VBeginAtZero>

reverse_iterator itk::IndexRange< VDimension, VBeginAtZero >::rend ( ) const

inlinenodiscardnoexcept

Returns a reverse 'end iterator' for this range.

Definition at line 386 of file itkIndexRange.h.

Referenced by itk::IndexRange< VDimension, false >< InputImageType::ImageDimension >::crend().

◆ size()

template<unsigned int VDimension, bool VBeginAtZero>

vcl_size_t itk::IndexRange< VDimension, VBeginAtZero >::size ( ) const

inlinenodiscardconstexprnoexcept

Returns the size of the range, that is the number of indices.

Definition at line 408 of file itkIndexRange.h.

Member Data Documentation

◆ Dimension

template<unsigned int VDimension, bool VBeginAtZero>

unsigned int itk::IndexRange< VDimension, VBeginAtZero >::Dimension = VDimension

staticconstexpr

Definition at line 81 of file itkIndexRange.h.

◆ m_MaxIndex

template<unsigned int VDimension, bool VBeginAtZero>

IndexType itk::IndexRange< VDimension, VBeginAtZero >::m_MaxIndex = IndexType::Filled(-1)

private

Definition at line 469 of file itkIndexRange.h.

◆ m_MinIndex

template<unsigned int VDimension, bool VBeginAtZero>

MinIndexType itk::IndexRange< VDimension, VBeginAtZero >::m_MinIndex {}

private

Definition at line 466 of file itkIndexRange.h.

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

itkIndexRange.h

Detailed Description

Classes

Public Types

Public Member Functions

Static Public Attributes

Private Types

Static Private Member Functions

Private Attributes

Member Typedef Documentation

◆ const_reverse_iterator

◆ IndexType

◆ iterator

◆ MinIndexType

◆ reverse_iterator

◆ SizeType

Constructor & Destructor Documentation

◆ IndexRange() [1/3]

◆ IndexRange() [2/3]

◆ IndexRange() [3/3]

Member Function Documentation

◆ begin()

◆ CalculateMaxIndex()

◆ cbegin()

◆ cend()

◆ crbegin()

◆ crend()

◆ empty()

◆ end()

◆ rbegin()

◆ rend()

◆ size()

Member Data Documentation

◆ Dimension

◆ m_MaxIndex

◆ m_MinIndex