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itkImageToListSampleAdaptor.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkImageToListSampleAdaptor.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-05-22 12:55:00 $
00007   Version:   $Revision: 1.3 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkImageToListSampleAdaptor_h
00018 #define __itkImageToListSampleAdaptor_h
00019 
00020 #include <typeinfo>
00021 
00022 #include "itkImage.h"
00023 #include "itkPixelTraits.h"
00024 #include "itkListSample.h"
00025 #include "itkSmartPointer.h"
00026 #include "itkImageRegionIterator.h"
00027 #include "itkFixedArray.h"
00028 #include "itkMacro.h"
00029 #include "itkMeasurementVectorTraits.h"
00030 
00031 namespace itk { 
00032 namespace Statistics {
00033 
00048 template < class TImage >
00049 class ITK_EXPORT ImageToListSampleAdaptor : 
00050     public ListSample< typename MeasurementVectorPixelTraits< typename TImage::PixelType >::MeasurementVectorType >
00051 {
00052 public:
00054   typedef ImageToListSampleAdaptor               Self;
00055 
00056   typedef ListSample< typename MeasurementVectorPixelTraits<
00057      typename TImage::PixelType >::MeasurementVectorType >
00058                                                  Superclass;
00059 
00060   typedef SmartPointer< Self >                   Pointer;
00061   typedef SmartPointer<const Self>               ConstPointer;
00062   
00064   itkTypeMacro(ImageToListSampleAdaptor, ListSample);
00065 
00067   itkNewMacro(Self);
00068 
00070   typedef TImage                                          ImageType;
00071   typedef typename ImageType::Pointer                     ImagePointer;
00072   typedef typename ImageType::ConstPointer                ImageConstPointer;
00073   typedef typename ImageType::IndexType                   IndexType;
00074   typedef typename ImageType::PixelType                   PixelType;
00075   typedef typename ImageType::PixelContainerConstPointer  PixelContainerConstPointer;
00076 
00078   typedef ImageRegionIterator< ImageType >               ImageIteratorType; 
00079   typedef ImageRegionConstIterator< ImageType >          ImageConstIteratorType; 
00080   typedef PixelTraits< typename TImage::PixelType >      PixelTraitsType;
00081 
00084   typedef typename MeasurementVectorPixelTraits<
00085          PixelType >::MeasurementVectorType                    MeasurementVectorType; 
00086   typedef typename MeasurementVectorTraitsTypes< 
00087              MeasurementVectorType >::ValueType                MeasurementType;
00088   itkSuperclassTraitMacro( AbsoluteFrequencyType )
00089   itkSuperclassTraitMacro( TotalAbsoluteFrequencyType )
00090   itkSuperclassTraitMacro( MeasurementVectorSizeType )
00091   itkSuperclassTraitMacro( InstanceIdentifier )
00093 
00094   typedef MeasurementVectorType                                ValueType;
00095 
00097   void SetImage(const TImage* image);
00098 
00100   const TImage* GetImage() const;
00101 
00103   InstanceIdentifier Size() const;
00104 
00106   virtual const MeasurementVectorType & GetMeasurementVector(InstanceIdentifier id) const;
00107 
00109   AbsoluteFrequencyType GetFrequency(InstanceIdentifier  id) const;
00110 
00112   TotalAbsoluteFrequencyType GetTotalFrequency() const;
00113 
00115   itkSetMacro( UsePixelContainer, bool );
00116 
00118   itkGetConstMacro( UsePixelContainer, bool );
00119 
00121   itkBooleanMacro( UsePixelContainer );
00122 
00123   //  PrintSelf(std::ostream& os, Indent indent) const;  
00124 
00126   class ConstIterator
00127     {
00128     friend class ImageToListSampleAdaptor;
00129     public:
00130 
00131     ConstIterator( const ImageToListSampleAdaptor * adaptor )
00132       {
00133       *this = adaptor->Begin();
00134       }
00135 
00136     ConstIterator(const ConstIterator &iter)
00137       {
00138       m_Iter = iter.m_Iter;
00139       m_InstanceIdentifier = iter.m_InstanceIdentifier;
00140       }
00141 
00142     ConstIterator& operator=( const ConstIterator & iter )
00143       {
00144       m_Iter = iter.m_Iter;
00145       m_InstanceIdentifier = iter.m_InstanceIdentifier;
00146       return *this;
00147       }
00148 
00149     AbsoluteFrequencyType GetFrequency() const
00150       {
00151       return 1;
00152       }
00153 
00154     const MeasurementVectorType & GetMeasurementVector() const
00155       {
00156       MeasurementVectorTraits::Assign( this->m_MeasurementVectorCache, m_Iter.Get());
00157       return this->m_MeasurementVectorCache;
00158       }
00159 
00160     InstanceIdentifier GetInstanceIdentifier() const
00161       {
00162       return m_InstanceIdentifier;
00163       }
00164 
00165     ConstIterator& operator++()
00166       {
00167       ++m_Iter;
00168       ++m_InstanceIdentifier;
00169       return *this;
00170       }
00171 
00172     bool operator!=(const ConstIterator &it)
00173       {
00174       return (m_Iter != it.m_Iter);
00175       }
00176 
00177     bool operator==(const ConstIterator &it)
00178       {
00179       return (m_Iter == it.m_Iter);
00180       }
00181 
00182 #if !(defined(_MSC_VER) && (_MSC_VER <= 1200))
00183   protected:
00184 #endif
00185     // This method should only be available to the ListSample class
00186     ConstIterator(
00187       ImageConstIteratorType iter,
00188       InstanceIdentifier iid)
00189       {
00190       m_Iter = iter;
00191       m_InstanceIdentifier = iid;
00192       }
00193 
00194     // This method is purposely not implemented
00195     ConstIterator();
00196 
00197   private:
00198     ImageConstIteratorType            m_Iter;
00199     mutable MeasurementVectorType     m_MeasurementVectorCache;
00200     InstanceIdentifier                m_InstanceIdentifier;
00201     };
00202 
00204   class Iterator : public ConstIterator
00205   {
00206 
00207   friend class ImageToListSampleAdaptor;
00208 
00209   public:
00210 
00211     Iterator(Self * adaptor):ConstIterator(adaptor)
00212       {
00213       }
00214 
00215     Iterator(const Iterator &iter):ConstIterator( iter )
00216       {
00217       }
00218 
00219     Iterator& operator =(const Iterator & iter)
00220       {
00221       this->ConstIterator::operator=( iter );
00222       return *this;
00223       }
00224 
00225 #if !(defined(_MSC_VER) && (_MSC_VER <= 1200))
00226   protected:
00227 #endif
00228     // To ensure const-correctness these method must not be in the public API.
00229     // The are purposly not implemented, since they should never be called.
00230     Iterator();
00231     Iterator(const Self * adaptor);
00232     Iterator(  ImageConstIteratorType iter, InstanceIdentifier iid);
00233     Iterator(const ConstIterator & it);
00234     ConstIterator& operator=(const ConstIterator& it);
00235     Iterator(
00236       ImageIteratorType iter,
00237       InstanceIdentifier iid):ConstIterator( iter, iid )
00238       {
00239       }
00240 
00241   private:
00242   };
00243 
00244 
00246   Iterator Begin()
00247     {
00248     ImagePointer  nonConstImage = const_cast< ImageType* >(m_Image.GetPointer());
00249     ImageIteratorType imageIterator( nonConstImage, nonConstImage->GetLargestPossibleRegion());  
00250     Iterator iter(imageIterator.Begin(), 0);
00251     return iter;
00252     }
00254 
00256   Iterator End()
00257     {
00258     ImagePointer  nonConstImage = const_cast< ImageType* >(m_Image.GetPointer());
00259     ImageIteratorType imageIterator( nonConstImage, nonConstImage->GetLargestPossibleRegion());  
00260     Iterator iter(imageIterator.End(), m_Image->GetPixelContainer()->Size());
00261     return iter;
00262     }
00264 
00265 
00267   ConstIterator Begin() const
00268     {
00269     ImageConstIteratorType imageConstIterator( m_Image, m_Image->GetLargestPossibleRegion());  
00270     ConstIterator iter(imageConstIterator.Begin(), 0);
00271     return iter;
00272     }
00274 
00276   ConstIterator End() const
00277     {
00278     ImageConstIteratorType imageConstIterator( m_Image, m_Image->GetLargestPossibleRegion());  
00279     ConstIterator iter(imageConstIterator.End(), m_Image->GetPixelContainer()->Size());
00280     return iter;
00281     }
00283 
00284 
00285 protected:
00286   ImageToListSampleAdaptor();
00287   virtual ~ImageToListSampleAdaptor() {}
00288   void PrintSelf(std::ostream& os, Indent indent) const;  
00289 
00290 private:
00291   ImageToListSampleAdaptor(const Self&); //purposely not implemented
00292   void operator=(const Self&); //purposely not implemented
00293 
00294   ImageConstPointer                  m_Image;
00295   mutable MeasurementVectorType      m_MeasurementVectorInternal;
00296   bool                               m_UsePixelContainer;
00297 
00298   PixelContainerConstPointer m_PixelContainer;
00299 
00300 }; // end of class ImageToListSampleAdaptor
00301 
00302 } // end of namespace Statistics
00303 } // end of namespace itk
00304 
00305 #ifndef ITK_MANUAL_INSTANTIATION
00306 #include "itkImageToListSampleAdaptor.txx"
00307 #endif
00308 
00309 #endif
00310 

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