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itkNthElementImageAdaptor.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkNthElementImageAdaptor.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-02-06 20:53:13 $
00007   Version:   $Revision: 1.13 $
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 __itkNthElementImageAdaptor_h
00018 #define __itkNthElementImageAdaptor_h
00019 
00020 #include <itkImageAdaptor.h>
00021 #include <itkNthElementPixelAccessor.h>
00022 
00023 namespace itk
00024 {
00025  
00039 // Create a helper class to help the SunPro CC compiler
00040 // parse the templates for the NthElementImageAdaptor.
00041 // This is used to define the Super class.  for NthElementImageAdaptor
00042 template <class TImage, class TOutputPixelType>
00043 class ITK_EXPORT NthElementImageAdaptorHelper
00044 {
00045 public:
00046   typedef  NthElementPixelAccessor<
00047     TOutputPixelType,
00048     typename TImage::PixelType> PixelAccessor;
00049 
00050   typedef  ImageAdaptor<TImage, PixelAccessor> Super;
00051 };
00052 
00053     
00054 
00055 template <class TImage, class TOutputPixelType>
00056   class ITK_EXPORT NthElementImageAdaptor 
00057   : public NthElementImageAdaptorHelper<TImage, TOutputPixelType>::Super
00058 {
00059 public:
00061   typedef NthElementImageAdaptor                                                 Self;
00062   typedef typename NthElementImageAdaptorHelper<TImage, TOutputPixelType>::Super Superclass;
00063   typedef SmartPointer<Self>                                                     Pointer;
00064   typedef SmartPointer<const Self>                                               ConstPointer;
00065 
00067   itkTypeMacro( NthElementImageAdaptor, ImageAdaptor );
00068 
00070   itkNewMacro(Self);  
00071 
00073   void SelectNthElement( unsigned int nth ) 
00074     { this->GetPixelAccessor().SetElementNumber( nth ); 
00075     this->Modified(); }
00077 
00078 protected:
00079   NthElementImageAdaptor() {}
00080   virtual ~NthElementImageAdaptor() {}
00081   
00082 private:
00083   NthElementImageAdaptor(const Self&); //purposely not implemented
00084   void operator=(const Self&); //purposely not implemented
00085 };
00086 
00087 
00088 } // end namespace itk
00089 
00090 #endif
00091 

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