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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkCommandIterationUpdate.h,v $
Language: C++
Date: $Date: 2003-09-10 14:30:02 $
Version: $Revision: 1.9 $
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 __itkCommandIterationUpdate_h
#define __itkCommandIterationUpdate_h
#include <itkCommand.h>
#include "itkWeakPointer.h"
namespace itk {
/**
* Implementation of the Command Pattern to be invoked every iteration
*/
template < class TOptimizer >
class ITK_EXPORT CommandIterationUpdate : public Command
{
public:
/**
* Standard "Self" typedef.
*/
typedef CommandIterationUpdate Self;
/**
* Standard "Superclass" typedef.
*/
typedef itk::Command Superclass;
/**
* Smart pointer typedef support.
*/
typedef itk::SmartPointer<Self> Pointer;
/**
* ConstSmart pointer typedef support.
*/
typedef itk::SmartPointer<const Self> ConstPointer;
/**
* Execute method will print data at each iteration
*/
void Execute(itk::Object *caller, const itk::EventObject & event)
{
Execute( (const itk::Object *)caller, event);
}
void Execute(const itk::Object *, const itk::EventObject & event)
{
if( typeid( event ) == typeid( itk::StartEvent ) )
{
std::cout << std::endl << "Position Value";
std::cout << std::endl << std::endl;
}
else if( typeid( event ) == typeid( itk::IterationEvent ) )
{
std::cout << m_Optimizer->GetCurrentIteration() << " = ";
std::cout << m_Optimizer->GetValue() << " : ";
std::cout << m_Optimizer->GetCurrentPosition() << std::endl;
}
else if( typeid( event ) == typeid( itk::EndEvent ) )
{
std::cout << std::endl << std::endl;
std::cout << "After " << m_Optimizer->GetCurrentIteration();
std::cout << " iterations " << std::endl;
std::cout << "Solution is = " << m_Optimizer->GetCurrentPosition();
std::cout << std::endl;
std::cout << "With value = " << m_Optimizer->GetValue();
std::cout << std::endl;
std::cout << "Stop condition = " << m_Optimizer->GetStopCondition();
std::cout << std::endl;
}
}
/**
* Run-time type information (and related methods).
*/
itkTypeMacro( CommandIterationUpdate, ::itk::Command );
/**
* Method for creation through the object factory.
*/
itkNewMacro( Self );
/**
* Type defining the optimizer
*/
typedef TOptimizer OptimizerType;
/**
* Set Optimizer
*/
void SetOptimizer( OptimizerType * optimizer )
{
m_Optimizer = optimizer;
m_Optimizer->AddObserver( itk::IterationEvent(), this );
}
protected:
/**
* Constructor
*/
CommandIterationUpdate() {};
private:
/**
* WeakPointer to the Optimizer
*/
WeakPointer<OptimizerType> m_Optimizer;
};
} // end namespace itk
#endif
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