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00017 #ifndef __itkPathConstIterator_h
00018 #define __itkPathConstIterator_h
00019
00020 #include "itkIndex.h"
00021 #include "itkImage.h"
00022 #include "itkPath.h"
00023
00024 namespace itk
00025 {
00026
00072 template<class TImage, class TPath>
00073 class ITK_EXPORT PathConstIterator
00074 {
00075 public:
00076
00078 typedef PathConstIterator Self;
00079
00084 itkStaticConstMacro(ImageIteratorDimension, unsigned int,
00085 TImage::ImageDimension);
00086
00088 typedef typename TImage::IndexType IndexType;
00089 typedef typename TImage::IndexValueType IndexValueType;
00090
00092 typedef typename TImage::OffsetType OffsetType;
00093 typedef typename TImage::OffsetValueType OffsetValueType;
00094
00096 typedef typename TImage::SizeType SizeType;
00097 typedef typename TImage::SizeValueType SizeValueType;
00098
00100 typedef typename TImage::RegionType RegionType;
00101
00103 typedef typename TImage::SpacingType SpacingType;
00104
00106 typedef typename TImage::PointType PointType;
00107
00109 typedef TImage ImageType;
00110
00114 typedef typename TImage::PixelContainer PixelContainer;
00115 typedef typename PixelContainer::Pointer PixelContainerPointer;
00116
00118 typedef typename TImage::InternalPixelType InternalPixelType;
00119
00121 typedef typename TImage::PixelType PixelType;
00122
00125 typedef typename TImage::AccessorType AccessorType;
00126
00128 typedef TPath PathType;
00129
00131 typedef typename PathType::InputType PathInputType;
00132
00134 typedef typename PathType::OutputType PathOutputType;
00135
00137 itkTypeMacro(PathConstIterator, None);
00138
00140 static unsigned int GetImageIteratorDimension()
00141 {
00142 return TImage::ImageDimension;
00143 }
00144
00146 const PathInputType GetPathPosition()
00147 {
00148 return m_CurrentPathPosition;
00149 }
00150
00152 const IndexType GetIndex()
00153 {
00154 return m_CurrentImageIndex;
00155 }
00156
00158 const PixelType & Get(void) const
00159 {
00160 return m_Image->GetPixel(m_CurrentImageIndex );
00161 }
00162
00166 bool IsAtEnd()
00167 {
00168 return m_IsAtEnd;
00169 }
00170
00175 inline virtual void VisitStartIndexAsLastIndexIfClosed(bool flag)
00176 {
00177 m_VisitStartIndexAsLastIndexIfClosed = flag;
00178 }
00179
00185 void GoToBegin();
00186
00188 void operator++();
00189
00192 Self &operator=(const Self& it);
00193
00195 PathConstIterator(const ImageType *imagePtr, const PathType *pathPtr);
00196
00198 virtual ~PathConstIterator() {};
00199
00200 protected:
00201
00202 OffsetType m_ZeroOffset;
00203
00205 typename ImageType::ConstWeakPointer m_Image;
00206
00208 typename PathType::ConstPointer m_Path;
00209
00211 RegionType m_Region;
00212
00214 PointType m_ImageOrigin;
00215
00217 SpacingType m_ImageSpacing;
00218
00220 const SizeValueType * m_ImageSize;
00221
00226 bool m_VisitStartIndexAsLastIndexIfClosed;
00227
00229 bool m_IsAtEnd;
00230
00232 PathInputType m_CurrentPathPosition;
00233
00235 IndexType m_CurrentImageIndex;
00236 };
00237
00238 }
00239
00240 #ifndef ITK_MANUAL_INSTANTIATION
00241 #include "itkPathConstIterator.txx"
00242 #endif
00243
00244 #endif
00245