Main Page   Groups   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Namespace Members   Compound Members   File Members   Concepts

itkMembershipSample.h

Go to the documentation of this file.
00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMembershipSample.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/12/15 01:00:46 $
00007   Version:   $Revision: 1.28 $
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 __itkMembershipSample_h
00018 #define __itkMembershipSample_h
00019 
00020 #include "itk_hash_map.h"
00021 #include "itkSample.h"
00022 #include "itkSubsample.h"
00023 
00024 #include "itkExceptionObject.h"
00025 
00026 namespace itk{ 
00027 namespace Statistics{
00028 
00050 template< class TSample >
00051 class ITK_EXPORT MembershipSample : 
00052     public Sample< typename TSample::MeasurementVectorType >
00053 {
00054 public:
00056   typedef MembershipSample Self;
00057   typedef Sample< typename TSample::MeasurementVectorType > Superclass ;
00058   typedef SmartPointer< Self > Pointer ;
00059   typedef SmartPointer< const Self > ConstPointer ;
00060 
00062   itkTypeMacro(MembershipSample, Sample);
00063   itkNewMacro(Self) ;
00064   
00067   typedef typename TSample::MeasurementVectorType MeasurementVectorType;
00068   typedef typename TSample::MeasurementType MeasurementType;
00069   typedef typename TSample::InstanceIdentifier InstanceIdentifier;
00070   typedef typename TSample::FrequencyType FrequencyType ;
00071   //    typedef typename TSample::SizeType SizeType ;
00072   //    typedef typename TSample::SizeValueType SizeValueType ;
00073   
00075   itkStaticConstMacro(MeasurementVectorSize, unsigned int,
00076                       TSample::MeasurementVectorSize);
00077   
00080   typedef std::vector< unsigned int > UniqueClassLabelsType ;
00081 
00084   typedef itk::hash_map< InstanceIdentifier, unsigned int> ClassLabelHolderType ;
00085   
00088   typedef Subsample< TSample > ClassSampleType ;
00089   typedef typename ClassSampleType::Pointer         ClassSamplePointer;
00090   typedef typename ClassSampleType::ConstPointer    ClassSampleConstPointer;
00091   
00093   void SetSample(const TSample* sample) ;
00094 
00096   const TSample* GetSample() const;
00097   
00099   void SetNumberOfClasses(unsigned int numberOfClasses) ;
00100   
00102   unsigned int GetNumberOfClasses() const ;
00103 
00108   void AddInstance(const unsigned int &classLabel, const InstanceIdentifier &id) ;
00111   unsigned int GetClassLabel(const InstanceIdentifier &id) const ;
00112 
00115   int GetInternalClassLabel(const unsigned int classLabel ) const ;
00116 
00119   unsigned int GetClassSampleSize(const unsigned int &classLabel) const ;
00120 
00123   const ClassSampleType* GetClassSample(const unsigned int &classLabel) const ;
00124   
00127   ClassLabelHolderType* GetClassLabels()
00128   { return &m_ClassLabelHolder ; }
00129 
00131   unsigned int Size(void) const ;
00132   
00135   const MeasurementVectorType & GetMeasurementVector(const InstanceIdentifier &id) const;
00136   
00139   MeasurementType GetMeasurement(const InstanceIdentifier &id, 
00140                                   const unsigned int &dimension) ;
00141 
00143   FrequencyType GetFrequency(const InstanceIdentifier &id) const ;
00144   
00146   FrequencyType GetTotalFrequency() const ;
00147 
00148   void Resize(unsigned int n) 
00149   {
00150     m_ClassLabelHolder.resize(n) ;
00151   }
00152 
00153  
00154   class ConstIterator
00155   {
00156   public:
00157     ConstIterator(InstanceIdentifier id, const Self* membershipSample)
00158       :m_Id(id), m_MembershipSample(membershipSample),
00159        m_Sample(membershipSample->GetSample())
00160     {}
00161     
00162     FrequencyType GetFrequency() const
00163     { return  m_Sample->GetFrequency(m_Id) ; }
00164     
00165     const MeasurementVectorType & GetMeasurementVector() const
00166     { return m_Sample->GetMeasurementVector(m_Id) ; } 
00167     
00168     InstanceIdentifier GetInstanceIdentifier() const
00169     { return m_Id ; }
00170 
00171     void SetClassLabel(unsigned int classLabel)
00172     { m_MembershipSample->AddInstance(classLabel, m_Id) ; }
00173 
00174     unsigned int GetClassLabel() const
00175     { return m_MembershipSample->GetClassLabel(m_Id) ; }
00176 
00177     ConstIterator& operator++() 
00178     { 
00179       ++m_Id ;
00180       return *this ;
00181     }
00182     
00183     bool operator!=(const ConstIterator& it) 
00184     { 
00185       if (m_Id != it.m_Id || 
00186           m_MembershipSample != it.m_MembershipSample ||
00187           m_Sample != it.m_Sample)
00188         {
00189         return true ;
00190         }
00191       else
00192         {
00193         return false ;
00194         }
00195     }
00196 
00197     bool operator==(const ConstIterator& it) 
00198     { 
00199       if (m_Id == it.m_Id && 
00200           m_MembershipSample == it.m_MembershipSample &&
00201           m_Sample == it.m_Sample)
00202         {
00203         return true ;
00204         }
00205       else
00206         {
00207         return false ;
00208         }
00209     }
00210     
00211     ConstIterator& operator=(const ConstIterator& it)
00212     {
00213       m_Id = it.m_Id;
00214       m_MembershipSample = it.m_MembershipSample ;
00215       m_Sample = it.m_Sample ;
00216       return *this ;
00217     }
00218 
00219     ConstIterator(const ConstIterator& it)
00220     {
00221       m_Id = it.m_Id;
00222       m_MembershipSample = it.m_MembershipSample ;
00223       m_Sample = it.m_Sample ;
00224     }
00225     
00226   private:
00227     // identifier for the instance
00228     InstanceIdentifier m_Id ;  
00229     // Pointer to MemebershipSample object
00230     const Self* m_MembershipSample ;
00231     const TSample* m_Sample ;
00232   } ;
00233 
00234   ConstIterator Begin() const
00235   { 
00236     ConstIterator iter(0, this) ;
00237     return iter; 
00238   }
00239   
00240   ConstIterator  End() const        
00241   {
00242     ConstIterator iter(this->Size(), this) ; 
00243     return iter; 
00244   }
00245  
00246 protected:
00247   MembershipSample() ;
00248   virtual ~MembershipSample() {}
00249   void PrintSelf(std::ostream& os, Indent indent) const;  
00250   
00251 private:
00252   MembershipSample(const Self&) ; //purposely not implemented
00253   void operator=(const Self&) ; //purposely not implemented
00254 
00255   const TSample*                  m_Sample ;
00256   unsigned int                    m_CurrentClassLabel ;
00257   UniqueClassLabelsType           m_UniqueClassLabels ;
00258   ClassLabelHolderType            m_ClassLabelHolder ;
00259   unsigned int                    m_NumberOfClasses ;
00260   std::vector< unsigned int >     m_ClassSampleSizes ;
00261   std::vector< ClassSamplePointer > m_ClassSamples ;
00262 } ; // end of class
00263 
00264 
00265 } // end of namespace Statistics 
00266 } // end of namespace itk
00267 
00268 
00269 #ifndef ITK_MANUAL_INSTANTIATION
00270 #include "itkMembershipSample.txx"
00271 #endif
00272 
00273 #endif
00274 
00275 
00276 
00277 
00278 
00279 
00280 

Generated at Wed Mar 30 00:03:34 2005 for ITK by doxygen 1.3.9.1 written by Dimitri van Heesch, © 1997-2000