ITK  4.3.0
Insight Segmentation and Registration Toolkit
itkHeavisideStepFunctionBase.h
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18 #ifndef __itkHeavisideStepFunctionBase_h
19 #define __itkHeavisideStepFunctionBase_h
20 
21 #include "itkFunctionBase.h"
22 #include "itkConceptChecking.h"
23 
24 namespace itk
25 {
53 template< typename TInput = float, typename TOutput = double >
54 class HeavisideStepFunctionBase:public FunctionBase< TInput, TOutput >
55 {
56 public:
61 
64 
65 
66  typedef typename Superclass::InputType InputType;
68 
70  virtual OutputType Evaluate(const InputType & input) const = 0;
71 
73  virtual OutputType EvaluateDerivative(const InputType & input) const = 0;
74 
75 #ifdef ITK_USE_CONCEPT_CHECKING
76  itkConceptMacro( DoubleConvertibleToInputCheck,
78 
79  itkConceptMacro( DoubleConvertibleToOutputCheck,
81 #endif // ITK_USE_CONCEPT_CHECKING
82 
83 protected:
86 
87 private:
88  HeavisideStepFunctionBase(const Self &); //purposely not implemented
89  void operator=(const Self &); //purposely not implemented
90 };
91 }
92 
93 #endif
94