ITK  5.0.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Static Public Member Functions | Static Public Attributes | Protected Attributes | List of all members
itk::LineConstIterator< TImage > Class Template Reference

#include <itkLineConstIterator.h>

+ Inheritance diagram for itk::LineConstIterator< TImage >:

Detailed Description

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

An iterator that walks a Bresenham line through an ND image with read-only access to pixels.

LineConstIterator is an iterator that walks a Bresenham line through an image. The iterator is constructed similar to other image iterators, except instead of specifying a region to traverse, you specify two indices. The interval specified by the two indices is closed. So, a line iterator specified with the same start and end index will visit exactly one pixel.

LineConstIterator<ImageType> it(image, I1, I2);
while (!it.IsAtEnd())
{
// visits at least 1 pixel
}
Author
Benjamin King, Experimentelle Radiologie, Medizinische Hochschule Hannover.
Wiki Examples:
Examples:
WikiExamples/Iterators/LineConstIterator.cxx.

Definition at line 56 of file itkLineConstIterator.h.

Public Types

using AccessorType = typename TImage::AccessorType
 
using ImageType = TImage
 
using IndexType = typename TImage::IndexType
 
using InternalPixelType = typename TImage::InternalPixelType
 
using OffsetType = typename TImage::OffsetType
 
using PixelContainer = typename TImage::PixelContainer
 
using PixelContainerPointer = typename PixelContainer::Pointer
 
using PixelType = typename TImage::PixelType
 
using PointType = typename TImage::PointType
 
using RegionType = typename TImage::RegionType
 
using Self = LineConstIterator
 
using SizeType = typename TImage::SizeType
 
using SpacingType = typename TImage::SpacingType
 

Public Member Functions

const PixelType Get () const
 
const IndexType GetIndex ()
 
void GoToBegin ()
 
bool IsAtEnd () const
 
 itkTypeMacroNoParent (LineConstIterator)
 
 LineConstIterator (const ImageType *imagePtr, const IndexType &firstIndex, const IndexType &lastIndex)
 
void operator++ ()
 
Selfoperator= (const Self &it)
 
virtual ~LineConstIterator ()=default
 

Static Public Member Functions

static unsigned int GetImageIteratorDimension ()
 

Static Public Attributes

static constexpr unsigned int ImageIteratorDimension = TImage::ImageDimension
 

Protected Attributes

IndexType m_AccumulateError
 
IndexType m_CurrentImageIndex
 
IndexType m_EndIndex
 
ImageType::ConstWeakPointer m_Image
 
IndexType m_IncrementError
 
bool m_IsAtEnd
 
IndexType m_LastIndex
 
unsigned int m_MainDirection
 
IndexType m_MaximalError
 
IndexType m_OverflowIncrement
 
IndexType m_ReduceErrorAfterIncrement
 
RegionType m_Region
 
IndexType m_StartIndex
 

Member Typedef Documentation

template<typename TImage>
using itk::LineConstIterator< TImage >::AccessorType = typename TImage::AccessorType

Accessor type that convert data between internal and external representations.

Definition at line 104 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::ImageType = TImage

Image type alias support

Definition at line 88 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::IndexType = typename TImage::IndexType

Index type alias support

Definition at line 70 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::InternalPixelType = typename TImage::InternalPixelType

Internal Pixel Type

Definition at line 97 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::OffsetType = typename TImage::OffsetType

Offset type alias support

Definition at line 73 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::PixelContainer = typename TImage::PixelContainer

PixelContainer type alias 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 93 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::PixelContainerPointer = typename PixelContainer::Pointer

Definition at line 94 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::PixelType = typename TImage::PixelType

External Pixel Type

Definition at line 100 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::PointType = typename TImage::PointType

Origin type alias support

Definition at line 85 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::RegionType = typename TImage::RegionType

Region type alias support

Definition at line 79 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::Self = LineConstIterator

Standard class type aliases.

Definition at line 61 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::SizeType = typename TImage::SizeType

Size type alias support

Definition at line 76 of file itkLineConstIterator.h.

template<typename TImage>
using itk::LineConstIterator< TImage >::SpacingType = typename TImage::SpacingType

Spacing type alias support

Definition at line 82 of file itkLineConstIterator.h.

Constructor & Destructor Documentation

template<typename TImage>
itk::LineConstIterator< TImage >::LineConstIterator ( const ImageType imagePtr,
const IndexType firstIndex,
const IndexType lastIndex 
)

Constructor establishes an iterator to walk along a line

template<typename TImage>
virtual itk::LineConstIterator< TImage >::~LineConstIterator ( )
virtualdefault

Default Destructor.

Member Function Documentation

template<typename TImage>
const PixelType itk::LineConstIterator< TImage >::Get ( ) const
inline

Get the pixel value

Definition at line 122 of file itkLineConstIterator.h.

template<typename TImage>
static unsigned int itk::LineConstIterator< TImage >::GetImageIteratorDimension ( )
inlinestatic

Get the dimension (size) of the index.

Definition at line 110 of file itkLineConstIterator.h.

template<typename TImage>
const IndexType itk::LineConstIterator< TImage >::GetIndex ( )
inline

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

Definition at line 116 of file itkLineConstIterator.h.

template<typename TImage>
void itk::LineConstIterator< TImage >::GoToBegin ( )

Move an iterator to the beginning of the line.

template<typename TImage>
bool itk::LineConstIterator< TImage >::IsAtEnd ( ) const
inline

Is the iterator at the end of the line?

Definition at line 128 of file itkLineConstIterator.h.

template<typename TImage>
itk::LineConstIterator< TImage >::itkTypeMacroNoParent ( LineConstIterator< TImage >  )

Run-time type information (and related methods).

template<typename TImage>
void itk::LineConstIterator< TImage >::operator++ ( )

Walk forward along the line to the next index in the image.

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

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

Member Data Documentation

template<typename TImage>
constexpr unsigned int itk::LineConstIterator< TImage >::ImageIteratorDimension = TImage::ImageDimension
static

Dimension of the image that the iterator walks. This constant 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 67 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_AccumulateError
protected

Definition at line 170 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_CurrentImageIndex
protected

Start, end and current ND index position in the image of the line

Definition at line 160 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_EndIndex
protected

Definition at line 163 of file itkLineConstIterator.h.

template<typename TImage>
ImageType::ConstWeakPointer itk::LineConstIterator< TImage >::m_Image
protected

Smart pointer to the source image.

Definition at line 151 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_IncrementError
protected

Definition at line 174 of file itkLineConstIterator.h.

template<typename TImage>
bool itk::LineConstIterator< TImage >::m_IsAtEnd
protected

Is the iterator at the end of its walk?

Definition at line 157 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_LastIndex
protected

Definition at line 162 of file itkLineConstIterator.h.

template<typename TImage>
unsigned int itk::LineConstIterator< TImage >::m_MainDirection
protected

Variables that drive the Bresenham-Algorithm

Definition at line 167 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_MaximalError
protected

Definition at line 178 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_OverflowIncrement
protected

Definition at line 181 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_ReduceErrorAfterIncrement
protected

Definition at line 185 of file itkLineConstIterator.h.

template<typename TImage>
RegionType itk::LineConstIterator< TImage >::m_Region
protected

Region type to iterate over.

Definition at line 154 of file itkLineConstIterator.h.

template<typename TImage>
IndexType itk::LineConstIterator< TImage >::m_StartIndex
protected

Definition at line 161 of file itkLineConstIterator.h.


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