itkSimilarity2DTransform.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkSimilarity2DTransform.h,v $
  Language:  C++
  Date:      $Date: 2003/01/17 00:41:49 $
  Version:   $Revision: 1.4 $

  Copyright (c) 2002 Insight 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 __itkSimilarity2DTransform_h
#define __itkSimilarity2DTransform_h

#include <iostream>
#include "itkCenteredRigid2DTransform.h"

namespace itk
{

template < class TScalarType=double >    // Data type for scalars (float or double)
class ITK_EXPORT Similarity2DTransform : 
            public CenteredRigid2DTransform< TScalarType > 
{
public:
  typedef Similarity2DTransform Self;
  typedef CenteredRigid2DTransform< TScalarType >   Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
    
  itkNewMacro( Self );

  itkTypeMacro( Similarity2DTransform, CenteredRigid2DTransform );

  itkStaticConstMacro(SpaceDimension,           unsigned int, 2);
  itkStaticConstMacro(InputSpaceDimension,      unsigned int, 2);
  itkStaticConstMacro(OutputSpaceDimension,     unsigned int, 2);
  itkStaticConstMacro(ParametersDimension,      unsigned int, 6);

  typedef typename Superclass::ScalarType  ScalarType;

  typedef typename Superclass::ParametersType  ParametersType;

  typedef typename Superclass::JacobianType  JacobianType;
  
  typedef typename Superclass::OffsetType  OffsetType;

  typedef typename Superclass::InputPointType   InputPointType;
  typedef typename Superclass::OutputPointType  OutputPointType;
  
  typedef typename Superclass::InputVectorType   InputVectorType;
  typedef typename Superclass::OutputVectorType  OutputVectorType;
  
  typedef typename Superclass::InputCovariantVectorType   InputCovariantVectorType;
  typedef typename Superclass::OutputCovariantVectorType  OutputCovariantVectorType;
  
  typedef typename Superclass::InputVnlVectorType   InputVnlVectorType;
  typedef typename Superclass::OutputVnlVectorType  OutputVnlVectorType;
  
  void SetParameters( const ParametersType & parameters );

  void SetScale(TScalarType scale);

  const ParametersType & GetParameters( void ) const;

 
  const JacobianType & GetJacobian(const InputPointType  &point ) const;

  virtual void SetIdentity( void );


protected:
  Similarity2DTransform();
  ~Similarity2DTransform(){};
  void PrintSelf(std::ostream &os, Indent indent) const;

  virtual void ComputeMatrixAndOffset(void);

private:
  Similarity2DTransform(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  TScalarType m_Scale; 

}; //class Similarity2DTransform


}  // namespace itk


#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSimilarity2DTransform.txx"
#endif

#endif /* __itkSimilarity2DTransform_h */

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