itkGaussianRadialBasisFunction.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkGaussianRadialBasisFunction.h,v $
  Language:  C++
  Date:      $Date: 2007-08-17 13:10:57 $
  Version:   $Revision: 1.3 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/

#ifndef __itkGaussianRadialBasisFunction_h
#define __itkGaussianRadialBasisFunction_h

#include "itkRadialBasisFunctionBase.h"
#include "itkNNetDistanceMetricBase.h"

namespace itk
{
namespace Statistics
{
template<class ScalarType>
class GaussianRadialBasisFunction : public RadialBasisFunctionBase<ScalarType>
{
public:

  typedef GaussianRadialBasisFunction Self;
  typedef RadialBasisFunctionBase<ScalarType> Superclass;
  typedef typename Superclass::ArrayType ArrayType;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> ConstPointer;

  itkTypeMacro(GaussianRadialBasisFunction,RadialBasisFunctionBase);

  itkNewMacro(Self);

  virtual ScalarType Evaluate(const ScalarType& input) const;

  virtual ScalarType EvaluateDerivative(const ScalarType& dist,const ArrayType& input,
                                      char mode,int element_id=0) const;

protected:

  GaussianRadialBasisFunction();
  virtual ~GaussianRadialBasisFunction();

  virtual void PrintSelf( std::ostream& os, Indent indent ) const;

};

} // end namespace Statistics
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
  #include "itkGaussianRadialBasisFunction.txx"
#endif

#endif

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