itkTernaryFunctorImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkTernaryFunctorImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2003/09/10 14:28:57 $
  Version:   $Revision: 1.31 $

  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 __itkTernaryFunctorImageFilter_h
#define __itkTernaryFunctorImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"

namespace itk
{
  
template <class TInputImage1, class TInputImage2, 
          class TInputImage3, class TOutputImage, class TFunction    >
class ITK_EXPORT TernaryFunctorImageFilter :
    public ImageToImageFilter<TInputImage1,TOutputImage> 
{
public:
  typedef TernaryFunctorImageFilter  Self;
  typedef ImageToImageFilter<TInputImage1,TOutputImage>   Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(TernaryFunctorImageFilter, ImageToImageFilter);

  typedef TFunction   FunctorType;
  typedef TInputImage1 Input1ImageType;
  typedef typename Input1ImageType::ConstPointer Input1ImagePointer;
  typedef typename Input1ImageType::RegionType Input1ImageRegionType; 
  typedef typename Input1ImageType::PixelType Input1ImagePixelType; 
  typedef TInputImage2 Input2ImageType;
  typedef typename Input2ImageType::ConstPointer Input2ImagePointer;
  typedef typename Input2ImageType::RegionType Input2ImageRegionType; 
  typedef typename Input2ImageType::PixelType Input2ImagePixelType; 
  typedef TInputImage2 Input3ImageType;
  typedef typename Input3ImageType::ConstPointer Input3ImagePointer;
  typedef typename Input3ImageType::RegionType Input3ImageRegionType; 
  typedef typename Input3ImageType::PixelType Input3ImagePixelType; 
  typedef TOutputImage OutputImageType;
  typedef typename OutputImageType::Pointer OutputImagePointer;
  typedef typename OutputImageType::RegionType OutputImageRegionType;
  typedef typename OutputImageType::PixelType OutputImagePixelType;

  void SetInput1( const TInputImage1 *image1);

  void SetInput2( const TInputImage2 *image2);

  void SetInput3( const TInputImage3 *image3);

  FunctorType& GetFunctor(void) { return m_Functor; };

  void SetFunctor(const FunctorType& functor)
  {
    if ( m_Functor != functor )
      {
      m_Functor = functor;
      this->Modified();
      }
  }

protected:
  TernaryFunctorImageFilter();
  virtual ~TernaryFunctorImageFilter() {};

  void BeforeThreadedGenerateData();

  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
                            int threadId );

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

  FunctorType m_Functor;
};

} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTernaryFunctorImageFilter.txx"
#endif

#endif

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