itkSumInputFunction.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkSumInputFunction.h,v $
  Language:  C++
  Date:      $Date: 2009-01-28 21:04:59 $
  Version:   $Revision: 1.4 $

  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 __itkSumInputFunction_h
#define __itkSumInputFunction_h

#include "itkInputFunctionBase.h"
#include "vnl/vnl_matrix.h"
#include "vnl/vnl_vector.h"

namespace itk
{
namespace Statistics
{

template<class TMeasurementVector, class ScalarType>
class SumInputFunction : public InputFunctionBase<TMeasurementVector, ScalarType>
{
public:

  typedef SumInputFunction                                  Self;
  typedef InputFunctionBase<TMeasurementVector, ScalarType> Superclass;
  typedef SmartPointer<Self>                                Pointer;
  typedef SmartPointer<const Self>                          ConstPointer;

  itkTypeMacro(SumInputFunction, FunctionBase);

  itkNewMacro(Self);

  virtual ScalarType Evaluate(const TMeasurementVector& input) const;

  virtual void SetSize(unsigned int n);

protected:

  SumInputFunction();
  virtual ~SumInputFunction();

  unsigned int m_Size;

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

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

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

#endif

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