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itkAtanImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkAtanImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-04-01 14:36:09 $
00007   Version:   $Revision: 1.23 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkAtanImageFilter_h
00018 #define __itkAtanImageFilter_h
00019 
00020 #include "itkUnaryFunctorImageFilter.h"
00021 #include "vnl/vnl_math.h"
00022 
00023 namespace itk
00024 {
00025   
00046 namespace Functor {  
00047   
00048 template< class TInput, class TOutput>
00049 class Atan
00050 {
00051 public:
00052   Atan() {};
00053   ~Atan() {};
00054   bool operator!=( const Atan & ) const
00055     {
00056     return false;
00057     }
00058   bool operator==( const Atan & other ) const
00059     {
00060     return !(*this != other);
00061     }
00062   inline TOutput operator()( const TInput & A ) const
00063     {
00064     return static_cast<TOutput>( vcl_atan(static_cast<double>(A) ) );
00065     }
00066 }; 
00067 
00068 }
00069 template <class TInputImage, class TOutputImage>
00070 class ITK_EXPORT AtanImageFilter :
00071     public
00072 UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00073                         Functor::Atan< 
00074   typename TInputImage::PixelType, 
00075   typename TOutputImage::PixelType>   >
00076 {
00077 public:
00079   typedef AtanImageFilter           Self;
00080   typedef UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00081                                   Functor::Atan< 
00082     typename TInputImage::PixelType, 
00083     typename TOutputImage::PixelType>   
00084   >                                 Superclass;
00085   typedef SmartPointer<Self>        Pointer;
00086   typedef SmartPointer<const Self>  ConstPointer;
00087 
00089   itkNewMacro(Self);
00090 
00092   itkTypeMacro(AtanImageFilter, 
00093                UnaryFunctorImageFilter);
00094 
00095 #ifdef ITK_USE_CONCEPT_CHECKING
00096 
00097   itkConceptMacro(InputConvertibleToDoubleCheck,
00098     (Concept::Convertible<typename TInputImage::PixelType, double>));
00099   itkConceptMacro(DoubleConvertibleToOutputCheck,
00100     (Concept::Convertible<double, typename TOutputImage::PixelType>));
00101 
00103 #endif
00104 
00105 protected:
00106   AtanImageFilter() {}
00107   virtual ~AtanImageFilter() {}
00108 
00109 private:
00110   AtanImageFilter(const Self&); //purposely not implemented
00111   void operator=(const Self&); //purposely not implemented
00112 
00113 
00114 };
00115 
00116 } // end namespace itk
00117 
00118 
00119 #endif
00120 

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