ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkAcosImageFilter.h
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1 /*=========================================================================
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3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
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14  * See the License for the specific language governing permissions and
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17  *=========================================================================*/
18 #ifndef __itkAcosImageFilter_h
19 #define __itkAcosImageFilter_h
20 
22 #include "vnl/vnl_math.h"
23 
24 namespace itk
25 {
26 namespace Functor
27 {
33 template< class TInput, class TOutput >
34 class Acos
35 {
36 public:
37  Acos() {}
38  ~Acos() {}
39  bool operator!=(const Acos &) const
40  {
41  return false;
42  }
44 
45  bool operator==(const Acos & other) const
46  {
47  return !( *this != other );
48  }
49 
50  inline TOutput operator()(const TInput & A) const
51  {
52  return static_cast< TOutput >( vcl_acos( static_cast< double >( A ) ) );
53  }
54 };
55 }
56 
79 template< class TInputImage, class TOutputImage >
80 class ITK_EXPORT AcosImageFilter:
81  public
82  UnaryFunctorImageFilter< TInputImage, TOutputImage,
83  Functor::Acos<
84  typename TInputImage::PixelType,
85  typename TOutputImage::PixelType > >
86 {
87 public:
90  typedef UnaryFunctorImageFilter< TInputImage, TOutputImage,
91  Functor::Acos< typename TInputImage::PixelType,
92  typename TOutputImage::PixelType > > Superclass;
93 
96 
98  itkNewMacro(Self);
99 
101  itkTypeMacro(AcosImageFilter,
103 
104 #ifdef ITK_USE_CONCEPT_CHECKING
105 
106  itkConceptMacro( InputCovertibleToDoubleCheck,
108  itkConceptMacro( DoubleConvertibleToOutputCheck,
110 
112 #endif
113 protected:
115  virtual ~AcosImageFilter() {}
116 private:
117  AcosImageFilter(const Self &); //purposely not implemented
118  void operator=(const Self &); //purposely not implemented
119 };
120 } // end namespace itk
122 
123 #endif
124