itkVectorCastImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkVectorCastImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2002/09/13 21:21:31 $
  Version:   $Revision: 1.6 $

  Copyright (c) 2002 Insight 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 __itkVectorCastImageFilter_h
#define __itkVectorCastImageFilter_h

#include "itkUnaryFunctorImageFilter.h"

namespace itk
{
  
namespace Functor {  
  
  template< class TInput, class TOutput>
  class VectorCast
  {
  public:
    VectorCast() {}
    ~VectorCast() {}
    inline TOutput operator()( const TInput & A )
      {
      typedef typename TOutput::ValueType OutputValueType;

      TOutput value;
      for( unsigned int k = 0; k < TOutput::VectorDimension; k++ )
        { value[k] = static_cast<OutputValueType>( A[k] ); }
      return value;
    }
  }; 
}

template <class TInputImage, class TOutputImage>
class ITK_EXPORT VectorCastImageFilter :
    public
    UnaryFunctorImageFilter<TInputImage,TOutputImage, 
    Functor::VectorCast< typename TInputImage::PixelType, 
                         typename TOutputImage::PixelType>   >
{
public:
  typedef VectorCastImageFilter  Self;
  typedef UnaryFunctorImageFilter<TInputImage,TOutputImage, 
    Functor::VectorCast< typename TInputImage::PixelType, 
                         typename TOutputImage::PixelType> >  Superclass;
  typedef SmartPointer<Self>   Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);
  
protected:
  VectorCastImageFilter() {}
  virtual ~VectorCastImageFilter() {}

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

};

} // end namespace itk


#endif

---