itkQuaternionRigidTransform.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkQuaternionRigidTransform.h,v $
  Language:  C++
  Date:      $Date: 2002/09/11 19:57:13 $
  Version:   $Revision: 1.13 $

  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 __itkQuaternionRigidTransform_h
#define __itkQuaternionRigidTransform_h

#include <iostream>
#include "itkTransform.h"
#include "vnl/vnl_quaternion.h"
#include "itkPoint.h"
#include "itkMatrix.h"

namespace itk
{

template < class TScalarType=double >    // Data type for scalars (float or double)
class ITK_EXPORT QuaternionRigidTransform :
        public Transform< TScalarType, 3, 3> // Dimensions of input and output spaces
{
public:
  typedef QuaternionRigidTransform Self;
  typedef Transform< TScalarType, 3, 3>     Superclass;

  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
  
  itkNewMacro( Self );

  itkTypeMacro( QuaternionRigidTransform, Transform );

  typedef typename Superclass::ScalarType  ScalarType;

  typedef typename Superclass::ParametersType  ParametersType;
  
  typedef typename Superclass::JacobianType  JacobianType;

  typedef vnl_quaternion<TScalarType>           VnlQuaternionType;

  itkStaticConstMacro(SpaceDimension, unsigned int, 3);
  itkStaticConstMacro(ParametersDimension, unsigned int, 7);

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

  typedef Matrix<ScalarType, itkGetStaticConstMacro(InputSpaceDimension), itkGetStaticConstMacro(InputSpaceDimension)> MatrixType;

  typedef Vector<TScalarType, itkGetStaticConstMacro(InputSpaceDimension)> OffsetType;

  typedef typename Superclass::InputPointType    InputPointType;
  typedef typename Superclass::OutputPointType   OutputPointType;
  
  const OffsetType & GetOffset(void) const
    { return m_Offset; }

  const VnlQuaternionType & GetRotation(void) const
    { return m_Rotation; }

  const MatrixType & GetRotationMatrix(void) const
    { return m_RotationMatrix; }

  void SetOffset(const OffsetType &offset)
    { m_Offset = offset; return; }

  void SetRotation(const VnlQuaternionType &rotation);

  OutputPointType     TransformPoint(const InputPointType  &point ) const;

  void SetParameters( const ParametersType & parameters );

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

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

   MatrixType          m_RotationMatrix;

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

  OffsetType          m_Offset;

  VnlQuaternionType   m_Rotation;

}; //class QuaternionRigidTransform


}  // namespace itk


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

#endif /* __itkQuaternionRigidTransform_h */

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