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itkRadialBasisFunctionBase.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkRadialBasisFunctionBase.h,v $
00005   Language:  C++
00006   Date:      $Date: 2005/08/02 19:17:37 $
00007   Version:   $Revision: 1.1 $
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 
00018 #ifndef _itkRadialBasisFunctionBase_h
00019 #define _itkRadialBasisFunctionBase_h
00020 
00021 #include "itkFunctionBase.h"
00022 #include "itkArray.h"
00023 
00024 namespace itk
00025 {
00026 namespace Statistics
00027 {
00028 
00029 template<class ScalarType>
00030 class RadialBasisFunctionBase : public FunctionBase<ScalarType,ScalarType>
00031 {
00032 public:
00033 
00035   typedef RadialBasisFunctionBase Self;
00036   typedef FunctionBase<ScalarType,ScalarType> Superclass;
00037   typedef SmartPointer<Self> Pointer;
00038   typedef SmartPointer<const Self> ConstPointer;
00039 
00041   itkTypeMacro(RadialBasisFunctionBase, FunctionBase);
00042 
00044   typedef Array<ScalarType> ArrayType;
00045 
00047   virtual ScalarType Evaluate(const ScalarType& input) const=0;
00048 
00050   virtual ScalarType EvaluateDerivative(const ScalarType& dist, const ArrayType& input,
00051                                                     char mode,int element_id=0) const=0;
00052   
00053   itkSetMacro(Radius,ScalarType);
00054   itkGetConstMacro( Radius, ScalarType );
00055 
00056   itkSetMacro(Center,ArrayType);
00057   itkGetConstMacro(Center, ArrayType );
00058 
00059 protected:
00060   
00061   RadialBasisFunctionBase() 
00062     {
00063     m_Radius = 0;
00064     }
00065   virtual ~RadialBasisFunctionBase() {};
00066    
00068   virtual void PrintSelf( std::ostream& os, Indent indent ) const
00069     {
00070     os << indent << "RadialBasisFunctionBase(" << this << ")" << std::endl; 
00071     Superclass::PrintSelf( os, indent );
00072     }
00073 
00074 private:
00075   
00076   ArrayType  m_Center;
00077   ScalarType m_Radius;
00078 
00079   RadialBasisFunctionBase(const Self&); //purposely not implemented
00080   void operator=(const Self&); //purposely not implemented
00081 };
00082 
00083 } // end namespace Statistics
00084 } // end namespace itk
00085 
00086 #endif

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