itkTransformToDisplacementFieldFilter.h

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/*=========================================================================
 *
 *  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 __itkTransformToDisplacementFieldFilter_h
#define __itkTransformToDisplacementFieldFilter_h

#include "itkDataObjectDecorator.h"
#include "itkTransform.h"
#include "itkImageSource.h"

namespace itk
{
template< typename TOutputImage,
          typename TScalar = double >
class TransformToDisplacementFieldFilter:
  public ImageSource< TOutputImage >
{
public:
  typedef TransformToDisplacementFieldFilter Self;
  typedef ImageSource< TOutputImage >        Superclass;
  typedef SmartPointer< Self >               Pointer;
  typedef SmartPointer< const Self >         ConstPointer;

  typedef TOutputImage                           OutputImageType;
  typedef typename OutputImageType::RegionType   OutputImageRegionType;

  itkNewMacro(Self);

  itkTypeMacro(TransformToDisplacementFieldFilter, ImageSource);

  itkStaticConstMacro(ImageDimension, unsigned int, TOutputImage::ImageDimension);

  typedef Transform< TScalar, ImageDimension, ImageDimension >  TransformType;
  typedef DataObjectDecorator< TransformType >                  TransformInputType;

  typedef typename OutputImageType::PixelType     PixelType;
  typedef typename PixelType::ValueType           PixelValueType;
  typedef typename OutputImageType::RegionType    RegionType;
  typedef typename RegionType::SizeType           SizeType;
  typedef typename OutputImageType::IndexType     IndexType;
  typedef typename OutputImageType::PointType     PointType;
  typedef typename OutputImageType::SpacingType   SpacingType;
  typedef typename OutputImageType::PointType     OriginType;
  typedef typename OutputImageType::DirectionType DirectionType;

  typedef ImageBase< ImageDimension > ReferenceImageBaseType;

  using Superclass::SetInput;
  virtual void SetInput( const TransformInputType * transform );
  const TransformInputType * GetInput() const;
  itkSetGetDecoratedObjectInputMacro(Transform, TransformType);

  itkSetMacro(OutputStartIndex, IndexType);
  itkGetConstReferenceMacro(OutputStartIndex, IndexType);

  itkSetMacro(Size, SizeType);
  itkGetConstReferenceMacro(Size, SizeType);

  itkSetMacro(OutputSpacing, SpacingType);
  virtual void SetOutputSpacing(const SpacePrecisionType *values);

  itkGetConstReferenceMacro(OutputSpacing, SpacingType);

  itkSetMacro(OutputOrigin, OriginType);
  virtual void SetOutputOrigin(const SpacePrecisionType *values);

  itkGetConstReferenceMacro(OutputOrigin, OriginType);

  itkSetMacro(OutputDirection, DirectionType);
  itkGetConstReferenceMacro(OutputDirection, DirectionType);

  itkSetInputMacro(ReferenceImage, ReferenceImageBaseType);

  itkGetInputMacro(ReferenceImage, ReferenceImageBaseType);

  itkSetMacro(UseReferenceImage, bool);
  itkBooleanMacro(UseReferenceImage);
  itkGetConstMacro(UseReferenceImage, bool);

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkStaticConstMacro(PixelDimension, unsigned int,
                      PixelType::Dimension);
  itkConceptMacro( SameDimensionCheck,
                   ( Concept::SameDimension< ImageDimension, PixelDimension > ) );
  // End concept checking
#endif

protected:
  TransformToDisplacementFieldFilter();
  virtual ~TransformToDisplacementFieldFilter() {}

  virtual void GenerateOutputInformation();

  virtual void ThreadedGenerateData( const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId );

  void NonlinearThreadedGenerateData( const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId );

  void LinearThreadedGenerateData( const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId );

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

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

  SizeType             m_Size;            // size of the output region
  IndexType            m_OutputStartIndex; // start index of the output region
  SpacingType          m_OutputSpacing;   // output image spacing
  OriginType           m_OutputOrigin;    // output image origin
  DirectionType        m_OutputDirection; // output image direction cosines
  bool                 m_UseReferenceImage;

};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTransformToDisplacementFieldFilter.hxx"
#endif

#endif