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00017 #ifndef __itkAcosImageFilter_h
00018 #define __itkAcosImageFilter_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 Acos
00050 {
00051 public:
00052 Acos() {};
00053 ~Acos() {};
00054 bool operator!=( const Acos & ) const
00055 {
00056 return false;
00057 }
00058 bool operator==( const Acos & other ) const
00059 {
00060 return !(*this != other);
00061 }
00062 inline TOutput operator()( const TInput & A ) const
00063 {
00064 return static_cast<TOutput>( vcl_acos(static_cast<double>(A) ) );
00065 }
00066 };
00067 }
00068
00069 template <class TInputImage, class TOutputImage>
00070 class ITK_EXPORT AcosImageFilter :
00071 public
00072 UnaryFunctorImageFilter<TInputImage,TOutputImage,
00073 Functor::Acos<
00074 typename TInputImage::PixelType,
00075 typename TOutputImage::PixelType> >
00076 {
00077 public:
00079 typedef AcosImageFilter Self;
00080 typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,
00081 Functor::Acos< typename TInputImage::PixelType,
00082 typename TOutputImage::PixelType> > Superclass;
00083
00084 typedef SmartPointer<Self> Pointer;
00085 typedef SmartPointer<const Self> ConstPointer;
00086
00088 itkNewMacro(Self);
00089
00091 itkTypeMacro(AcosImageFilter,
00092 UnaryFunctorImageFilter);
00093
00094 #ifdef ITK_USE_CONCEPT_CHECKING
00095
00096 itkConceptMacro(InputCovertibleToDoubleCheck,
00097 (Concept::Convertible<typename TInputImage::PixelType, double>));
00098 itkConceptMacro(DoubleConvertibleToOutputCheck,
00099 (Concept::Convertible<double, typename TOutputImage::PixelType>));
00100
00102 #endif
00103
00104 protected:
00105 AcosImageFilter() {}
00106 virtual ~AcosImageFilter() {}
00107
00108 private:
00109 AcosImageFilter(const Self&);
00110 void operator=(const Self&);
00111
00112 };
00113
00114 }
00115
00116
00117 #endif
00118