/usr/include/InsightToolkit/Common/itkLineIterator.h is in libinsighttoolkit3-dev 3.20.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | /*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkLineIterator.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkLineIterator_h
#define __itkLineIterator_h
#include "itkIndex.h"
#include "itkImage.h"
#include "itkLineConstIterator.h"
namespace itk
{
/**
* \class LineIterator
* \brief Iterator that walks a Bresenham line through an ND image.
*
* LineIterator is an iterator that walks a Bresenham line
* through an image. The iterator is constructed similar to other
* image iterators except for 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.
*
* \code
* LineConstIterator<ImageType> it(image, I1, I2);
* while (!it.IsAtEnd())
* {
* // visits at least 1 pixel
* }
* \endcode
*
* This class was contributed by Benjamin King, Experimentelle
* Radiologie, Medizinische Hochschule Hannover.
*
* \sa LineConstIterator
*/
template<class TImage>
class ITK_EXPORT LineIterator : public LineConstIterator<TImage>
{
public:
/** Standard class typedefs. */
typedef LineIterator Self;
/** Dimension of the image 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. */
itkStaticConstMacro(ImageIteratorDimension, unsigned int,
TImage::ImageDimension);
/** Define the superclass */
typedef LineConstIterator<TImage> Superclass;
/** Inherit types from the superclass */
typedef typename Superclass::IndexType IndexType;
typedef typename Superclass::IndexValueType IndexValueType;
typedef typename Superclass::OffsetType OffsetType;
typedef typename Superclass::OffsetValueType OffsetValueType;
typedef typename Superclass::SizeType SizeType;
typedef typename Superclass::SizeValueType SizeValueType;
typedef typename Superclass::RegionType RegionType;
typedef typename Superclass::ImageType ImageType;
typedef typename Superclass::PixelContainer PixelContainer;
typedef typename Superclass::PixelContainerPointer PixelContainerPointer;
typedef typename Superclass::InternalPixelType InternalPixelType;
typedef typename Superclass::PixelType PixelType;
typedef typename Superclass::AccessorType AccessorType;
/** Run-time type information (and related methods). */
itkTypeMacro(LineIterator, LineConstIterator);
/** Set the pixel value */
void Set( const PixelType & value)
{
// Normally, this would just be the following:
// m_Image->SetPixel(m_CurrentImageIndex,value);
// However, we don't want a warning about m_Image being a ConstPointer
// in the Superclass.
const_cast<ImageType *>(this->m_Image.GetPointer())->
SetPixel(this->m_CurrentImageIndex,value);
}
/** Return a reference to the pixel
* This method will provide the fastest access to pixel
* data, but it will NOT support ImageAdaptors. */
const PixelType & Value(void)
{
return (this->m_Image->GetPixel(this->m_CurrentImageIndex));
}
/** operator= is provided to make sure the handle to the image is properly
* reference counted. */
Self &operator=(const Self& it);
/** Constructor establishes an iterator to walk along a path */
LineIterator(ImageType *imagePtr, const IndexType &firstIndex,
const IndexType &lastIndex);
/** Default Destructor. */
virtual ~LineIterator() {};
};
} // end namespace itk
// Define instantiation macro for this template.
#define ITK_TEMPLATE_LineIterator(_, EXPORT, x, y) namespace itk { \
_(1(class EXPORT LineIterator< ITK_TEMPLATE_1 x >)) \
namespace Templates { typedef LineIterator< ITK_TEMPLATE_1 x > \
LineIterator##y; } \
}
#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkLineIterator+-.h"
#endif
#if ITK_TEMPLATE_TXX
# include "itkLineIterator.txx"
#endif
#endif
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