/*=========================================================================
 *
 *  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
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  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.
 *
 *=========================================================================*/
#ifndef __itkCustomVersorTransformInitializer_h
#define __itkCustomVersorTransformInitializer_h

#include "itkCustomTransformInitializer.h"
#include "itkVersorRigid3DTransform.h"

namespace itk
{
/** \class CustomVersorTransformInitializer
 * \brief CustomVersorTransformInitializer is a helper class intended to
 * initialize the center of rotation, versor, and translation of the
 * VersorRigid3DTransform.
 *
 * This class derived from the CustomTransformInitializer and uses it in
 * a more constrained context. It always uses the Moments mode, and also
 * takes advantage of the second order moments in order to initialize the
 * Versor representing rotation.
 *
 * \ingroup ITKRegistrationCommon
 * \ingroup ITKTransform
 */
template< class TPointSet,
          class TMovingImage >
class ITK_EXPORT CustomVersorTransformInitializer:
  public CustomTransformInitializer<
    VersorRigid3DTransform< double >,
    TPointSet, TMovingImage >
{
public:
  /** Standard class typedefs. */
  typedef CustomVersorTransformInitializer Self;
  typedef CustomTransformInitializer<
    VersorRigid3DTransform< double >,
    TPointSet, TMovingImage >          Superclass;

  typedef SmartPointer< Self >       Pointer;
  typedef SmartPointer< const Self > ConstPointer;

  /** New macro for creation of through a Smart Pointer. */
  itkNewMacro(Self);

  /** Run-time type information (and related methods). */
  itkTypeMacro(CustomVersorTransformInitializer, Object);

  /** Type of the transform to initialize */
  typedef typename Superclass::TransformType    TransformType;
  typedef typename Superclass::TransformPointer TransformPointer;

  /** Dimension of parameters. */
  itkStaticConstMacro(InputSpaceDimension, unsigned int,
                      Superclass::InputSpaceDimension);
  itkStaticConstMacro(OutputSpaceDimension, unsigned int,
                      Superclass::OutputSpaceDimension);

  /** Image Types to use in the initialization of the transform */
  typedef   typename Superclass::PointSetType  PointSetType;
  typedef   typename Superclass::MovingImageType MovingImageType;

  typedef   typename Superclass::PointSetPointer  PointSetPointer;
  typedef   typename Superclass::MovingImagePointer MovingImagePointer;

  /** Offset type. */
  typedef typename Superclass::OffsetType OffsetType;

  /** Point type. */
  typedef typename Superclass::InputPointType InputPointType;

  /** Vector type. */
  typedef typename Superclass::OutputVectorType OutputVectorType;

  /** Initialize the transform using data from the images */
  void InitializeTransform();

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

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

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

}; //class CustomVersorTransformInitializer
}  // namespace itk
/*
// Define instantiation macro for this template.
#define ITK_TEMPLATE_CustomVersorTransformInitializer(_, EXPORT, TypeX, TypeY)     \
  namespace itk                                                                      \
  {                                                                                  \
  _( 2 ( class EXPORT CustomVersorTransformInitializer< ITK_TEMPLATE_2 TypeX > ) ) \
  namespace Templates                                                                \
  {                                                                                  \
  typedef CustomVersorTransformInitializer< ITK_TEMPLATE_2 TypeX >                 \
  CustomVersorTransformInitializer##TypeY;                                       \
  }                                                                                  \
  }

#if ITK_TEMPLATE_EXPLICIT
#include "Templates/itkCustomVersorTransformInitializer+-.h"
#endif

#if ITK_TEMPLATE_TXX
#include "itkCustomVersorTransformInitializer.hxx"
#endif
*/
#endif /* __itkCustomVersorTransformInitializer_h */