itkTanImageAdaptor.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkTanImageAdaptor.h,v $
  Language:  C++
  Date:      $Date: 2006-03-19 04:36:59 $
  Version:   $Revision: 1.12 $

  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 __itkTanImageAdaptor_h
#define __itkTanImageAdaptor_h

#include <itkImageAdaptor.h>
#include "vnl/vnl_math.h"

namespace itk
{
 
namespace Accessor {
template <class TInternalType, class TExternalType >
class ITK_EXPORT TanPixelAccessor  
{
public:
  typedef TExternalType ExternalType;

  typedef TInternalType InternalType;

  static inline void Set(TInternalType & output, const TExternalType & input) 
    {output = (TInternalType)vcl_tan((double)input);}

  static inline TExternalType Get( const TInternalType & input ) 
    {return (TExternalType)vcl_tan((double)input);}
};
  
} // end namespace Accessor

template <class TImage, class TOutputPixelType>
class ITK_EXPORT TanImageAdaptor : public
      ImageAdaptor<TImage,
                   Accessor::TanPixelAccessor<
                                      typename TImage::PixelType,
                                      TOutputPixelType>   >
{
public:
  typedef TanImageAdaptor  Self;
  typedef ImageAdaptor<TImage,Accessor::TanPixelAccessor<
                                       typename TImage::PixelType,
                                       TOutputPixelType> > Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);  

  itkTypeMacro( TanImageAdaptor, ImageAdaptor );

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

};

} // end namespace itk

#endif

---