itkNthElementImageAdaptor.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkNthElementImageAdaptor.h,v $
  Language:  C++
  Date:      $Date: 2003/09/10 14:29:18 $
  Version:   $Revision: 1.10 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkNthElementImageAdaptor_h
#define __itkNthElementImageAdaptor_h

#include <itkImageAdaptor.h>
#include <itkNthElementPixelAccessor.h>

namespace itk
{
 
template <class TImage, class TOutputPixelType>
class ITK_EXPORT NthElementImageAdaptor : public
      ImageAdaptor<TImage,
                   NthElementPixelAccessor<
                                      TOutputPixelType,
                                      typename TImage::PixelType> >
{
public:
  typedef NthElementImageAdaptor  Self;
  typedef ImageAdaptor<TImage,NthElementImageAdaptor<
                              TOutputPixelType,
                              typename TImage::PixelType > > Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
  
  itkTypeMacro( NthElementImageAdaptor, ImageAdaptor );

  itkNewMacro(Self);  

  void SelectNthElement( unsigned int nth ) 
    { this->GetPixelAccessor().SetElementNumber( nth ); 
    this->Modified(); }

protected:
  NthElementImageAdaptor() {}
  virtual ~NthElementImageAdaptor() {}
  
private:
  NthElementImageAdaptor(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
};


} // end namespace itk

#endif

---