itkCompose2DCovariantVectorImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkCompose2DCovariantVectorImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-10-13 18:54:27 $
  Version:   $Revision: 1.6 $

  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 __itkCompose2DCovariantVectorImageFilter_h
#define __itkCompose2DCovariantVectorImageFilter_h

#include "itkBinaryFunctorImageFilter.h"
#include "itkCovariantVector.h"

namespace itk
{
  
namespace Function {  
  
template< class TInput >
class Compose2DCovariantVector
{
public:
  typedef CovariantVector<TInput,2> OutputType;
  Compose2DCovariantVector() {}
  ~Compose2DCovariantVector() {}
  bool operator!=( const Compose2DCovariantVector & ) const
    {
    return false;
    }
  bool operator==( const Compose2DCovariantVector & other ) const
    {
    return !(*this != other);
    }
  inline OutputType operator()(  const TInput & s1, 
                                 const TInput & s2 )
    {
    OutputType v;
    v[0] = s1;
    v[1] = s2;
    return v;
    }
}; 
}

template <typename TInputImage, 
          typename TOutputImage= 
          Image< CovariantVector< ITK_TYPENAME TInputImage::PixelType,2 >,
                 ::itk::GetImageDimension<TInputImage>::ImageDimension > >
class ITK_EXPORT Compose2DCovariantVectorImageFilter :
    public
BinaryFunctorImageFilter<TInputImage,TInputImage,
                          TOutputImage, 
                          Function::Compose2DCovariantVector< ITK_TYPENAME TInputImage::PixelType >   >
{
public:
  typedef Compose2DCovariantVectorImageFilter  Self;
  typedef BinaryFunctorImageFilter<
    TInputImage,TInputImage,
    TOutputImage, 
    Function::Compose2DCovariantVector< 
      ITK_TYPENAME TInputImage::PixelType > >
                                               Superclass;
  typedef SmartPointer<Self>                   Pointer;
  typedef SmartPointer<const Self>             ConstPointer;

  typedef typename Superclass::OutputImageType OutputImageType;
  
  itkNewMacro(Self);

  itkTypeMacro(Compose2DCovariantVectorImageFilter, 
               BinaryFunctorImageFilter);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(InputHasNumericTraitsCheck,
    (Concept::HasNumericTraits<typename TInputImage::PixelType>));

#endif

protected:
  Compose2DCovariantVectorImageFilter() {}
  virtual ~Compose2DCovariantVectorImageFilter() {}

private:
  Compose2DCovariantVectorImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented


};

} // end namespace itk


#endif

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