itkSingleValuedNonLinearVnlOptimizer.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkSingleValuedNonLinearVnlOptimizer.h,v $
  Language:  C++
  Date:      $Date: 2007-03-22 21:39:38 $
  Version:   $Revision: 1.26 $

  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 __itkSingleValuedNonLinearVnlOptimizer_h
#define __itkSingleValuedNonLinearVnlOptimizer_h

#include "itkSingleValuedNonLinearOptimizer.h"
#include "itkSingleValuedVnlCostFunctionAdaptor.h"
#include "itkCommand.h"


namespace itk
{
  
class ITK_EXPORT SingleValuedNonLinearVnlOptimizer : 
    public SingleValuedNonLinearOptimizer
{
public:
  typedef SingleValuedNonLinearVnlOptimizer     Self;
  typedef SingleValuedNonLinearOptimizer        Superclass;
  typedef SmartPointer<Self>                    Pointer;
  typedef SmartPointer<const Self>              ConstPointer;
  
  itkTypeMacro( SingleValuedNonLinearVnlOptimizer, 
                SingleValueNonLinearOptimizer );

  typedef ReceptorMemberCommand< Self >           CommandType;

  virtual void SetCostFunction( SingleValuedCostFunction * costFunction ) = 0;

  itkGetConstReferenceMacro( Maximize, bool );
  itkSetMacro( Maximize, bool );
  itkBooleanMacro( Maximize );
  bool GetMinimize( ) const
    { return !m_Maximize; }
  void SetMinimize(bool v)
    { this->SetMaximize(!v); }
  void MinimizeOn()
    { this->MaximizeOff(); }
  void MinimizeOff()
    { this->MaximizeOn(); }

  itkGetConstReferenceMacro(CachedValue, MeasureType);
  itkGetConstReferenceMacro(CachedDerivative, DerivativeType);
  itkGetConstReferenceMacro(CachedCurrentPosition, ParametersType);

protected:
  SingleValuedNonLinearVnlOptimizer();
  virtual ~SingleValuedNonLinearVnlOptimizer();

  typedef SingleValuedVnlCostFunctionAdaptor   CostFunctionAdaptorType;

  void SetCostFunctionAdaptor( CostFunctionAdaptorType * adaptor );
  const CostFunctionAdaptorType * GetCostFunctionAdaptor( void ) const;
  CostFunctionAdaptorType * GetCostFunctionAdaptor( void );

  CostFunctionAdaptorType * GetNonConstCostFunctionAdaptor( void ) const;

  void PrintSelf(std::ostream& os, Indent indent) const;
  
private:
  void IterationReport( const EventObject & event );
  
  SingleValuedNonLinearVnlOptimizer(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  CostFunctionAdaptorType * m_CostFunctionAdaptor;

  bool                      m_Maximize;

  CommandType::Pointer      m_Command;

  mutable ParametersType    m_CachedCurrentPosition;
  mutable MeasureType       m_CachedValue;
  mutable DerivativeType    m_CachedDerivative;
};

} // end namespace itk

#endif