itkCenteredTransformInitializer.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkCenteredTransformInitializer.h,v $
  Language:  C++
  Date:      $Date: 2007/04/11 18:10:06 $
  Version:   $Revision: 1.10 $

  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 __itkCenteredTransformInitializer_h
#define __itkCenteredTransformInitializer_h

#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkImageMomentsCalculator.h"

#include <iostream>

namespace itk
{

template < class TTransform,
           class TFixedImage,
           class TMovingImage > 
class ITK_EXPORT CenteredTransformInitializer : public Object
{
public:
  typedef CenteredTransformInitializer     Self;
  typedef Object                           Superclass;
  typedef SmartPointer<Self>               Pointer;
  typedef SmartPointer<const Self>         ConstPointer;

  itkNewMacro( Self );

  itkTypeMacro( CenteredTransformInitializer, Object );

  typedef TTransform                        TransformType;
  typedef typename TransformType::Pointer   TransformPointer;

  itkStaticConstMacro(InputSpaceDimension, unsigned int, 
                      TransformType::InputSpaceDimension);
  itkStaticConstMacro(OutputSpaceDimension, unsigned int, 
                      TransformType::OutputSpaceDimension);

  typedef   TFixedImage              FixedImageType;
  typedef   TMovingImage             MovingImageType;

  typedef   typename FixedImageType::ConstPointer   FixedImagePointer;
  typedef   typename MovingImageType::ConstPointer  MovingImagePointer;

  typedef ImageMomentsCalculator< FixedImageType >   FixedImageCalculatorType;
  typedef ImageMomentsCalculator< MovingImageType >  MovingImageCalculatorType;

  typedef typename FixedImageCalculatorType::Pointer
                                                 FixedImageCalculatorPointer;
  typedef typename MovingImageCalculatorType::Pointer 
                                                 MovingImageCalculatorPointer;


  typedef typename TransformType::OffsetType  OffsetType;

  typedef typename TransformType::InputPointType   InputPointType;

  typedef typename TransformType::OutputVectorType  OutputVectorType;

  itkSetObjectMacro( Transform,   TransformType   );

  itkSetConstObjectMacro( FixedImage,  FixedImageType  );

  itkSetConstObjectMacro( MovingImage, MovingImageType );


  virtual void InitializeTransform() const;

  void GeometryOn() { m_UseMoments = false; }
  void MomentsOn()  { m_UseMoments = true; }

  itkGetConstObjectMacro( FixedCalculator,  FixedImageCalculatorType  );
  itkGetConstObjectMacro( MovingCalculator, MovingImageCalculatorType );

protected:
  CenteredTransformInitializer();
  ~CenteredTransformInitializer(){};

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

private:
  CenteredTransformInitializer(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  TransformPointer    m_Transform;

  FixedImagePointer   m_FixedImage;

  MovingImagePointer  m_MovingImage;

  bool                m_UseMoments;

  FixedImageCalculatorPointer    m_FixedCalculator;
  MovingImageCalculatorPointer   m_MovingCalculator;

}; //class CenteredTransformInitializer


}  // namespace itk


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

#endif /* __itkCenteredTransformInitializer_h */

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