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itkFiniteDifferenceSparseImageFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkFiniteDifferenceSparseImageFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-02-05 19:04:56 $
00007   Version:   $Revision: 1.9 $
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 __itkFiniteDifferenceSparseImageFunction_h
00018 #define __itkFiniteDifferenceSparseImageFunction_h
00019 
00020 #include "itkFiniteDifferenceFunction.h"
00021 
00022 namespace itk {
00023 
00044 template <class TSparseImageType>
00045 class ITK_EXPORT FiniteDifferenceSparseImageFunction
00046   :public FiniteDifferenceFunction <TSparseImageType>
00047 {
00048 public:
00049 
00051   typedef FiniteDifferenceSparseImageFunction           Self;
00052   typedef FiniteDifferenceFunction<TSparseImageType>    Superclass;
00053   typedef SmartPointer<Self>                            Pointer;
00054   typedef SmartPointer<const Self>                      ConstPointer;
00055 
00057   itkTypeMacro( FiniteDifferenceSparseImageFunction, FiniteDifferenceFunction );
00058 
00060   itkStaticConstMacro(ImageDimension, unsigned int, Superclass::ImageDimension);
00061 
00063   typedef typename Superclass::PixelType        PixelType;
00064   typedef typename Superclass::TimeStepType     TimeStepType;
00065   typedef typename Superclass::RadiusType       RadiusType;
00066   typedef typename Superclass::NeighborhoodType NeighborhoodType;
00067   typedef typename Superclass::FloatOffsetType  FloatOffsetType;
00068   typedef typename Superclass::ImageType        SparseImageType;
00069 
00071   typedef typename SparseImageType::IndexType   IndexType;
00072 
00074   typedef typename SparseImageType::NodeType NodeType;
00075 
00077   typedef typename NodeType::NodeDataType    NodeDataType;
00078 
00083   virtual PixelType ComputeUpdate(const NeighborhoodType&,
00084                                   void*,
00085                                   const FloatOffsetType&)
00086     {
00087     return static_cast<PixelType>(0);
00088     }
00089 
00092   virtual NodeDataType
00093   ComputeSparseUpdate(NeighborhoodType &neighborhood,
00094                       void *globalData,
00095                       const FloatOffsetType &offset = FloatOffsetType(0.0))
00096     const = 0;
00097 
00107   virtual void PrecomputeSparseUpdate( NeighborhoodType& ) const {};
00108 
00109 protected:
00110   FiniteDifferenceSparseImageFunction() {};
00111   ~FiniteDifferenceSparseImageFunction() {};
00112   void PrintSelf(std::ostream& os, Indent indent) const;
00113   
00114 private:
00115   FiniteDifferenceSparseImageFunction(const Self&); //purposely not implemented
00116   void operator=(const Self&); //purposely not implemented
00117 };
00118 
00119 } // end namespace itk
00120 
00121 #ifndef ITK_MANUAL_INSTANTIATION
00122 #include "itkFiniteDifferenceSparseImageFunction.txx"
00123 #endif
00124 
00125 #endif
00126 

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