itkSingleValuedNonLinearVnlOptimizer.h

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 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
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 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
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 *=========================================================================*/
#ifndef __itkSingleValuedNonLinearVnlOptimizer_h
#define __itkSingleValuedNonLinearVnlOptimizer_h

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

namespace itk
{
class 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;

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

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