itkWarpVectorImageFilter.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 itkWarpVectorImageFilter_h
#define itkWarpVectorImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkVectorLinearInterpolateImageFunction.h"
#include "itkPoint.h"
#include "itkFixedArray.h"

namespace itk
{
template<
  typename TInputImage,
  typename TOutputImage,
  typename TDisplacementField
  >
class WarpVectorImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef WarpVectorImageFilter                           Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(WarpVectorImageFilter, ImageToImageFilter);

  typedef typename TOutputImage::RegionType OutputImageRegionType;

  typedef typename Superclass::InputImageType         InputImageType;
  typedef typename Superclass::InputImagePointer      InputImagePointer;
  typedef typename Superclass::OutputImageType        OutputImageType;
  typedef typename Superclass::OutputImagePointer     OutputImagePointer;
  typedef typename Superclass::InputImageConstPointer InputImageConstPointer;

  typedef typename OutputImageType::IndexType            IndexType;
  typedef typename OutputImageType::SizeType             SizeType;
  typedef typename OutputImageType::PixelType            PixelType;
  typedef typename OutputImageType::SpacingType          SpacingType;
  typedef typename OutputImageType::PixelType::ValueType ValueType;

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

  itkStaticConstMacro(PixelDimension, unsigned int,
                      PixelType::Dimension);

  typedef TDisplacementField                        DisplacementFieldType;
  typedef typename DisplacementFieldType::Pointer   DisplacementFieldPointer;
  typedef typename DisplacementFieldType::PixelType DisplacementType;

#ifdef ITKV3_COMPATIBILITY
  typedef TDisplacementField                       DeformationFieldType;
  typedef typename DeformationFieldType::Pointer   DeformationFieldPointer;
  typedef typename DeformationFieldType::PixelType DeformationType;
#endif

  typedef double                                                         CoordRepType;
  typedef VectorInterpolateImageFunction< InputImageType, CoordRepType > InterpolatorType;
  typedef typename InterpolatorType::Pointer                             InterpolatorPointer;
  typedef VectorLinearInterpolateImageFunction< InputImageType, CoordRepType >
  DefaultInterpolatorType;

  typedef Point< CoordRepType, itkGetStaticConstMacro(ImageDimension) > PointType;

  typedef typename TOutputImage::DirectionType DirectionType;

  void SetDisplacementField(const DisplacementFieldType *field);

  void SetDisplacementField(DisplacementFieldType *field);

  DisplacementFieldType * GetDisplacementField();

#ifdef ITKV3_COMPATIBILITY
  void SetDeformationField(const DeformationFieldType *field)
  {
    this->SetDisplacementField(field);
  }

  void SetDeformationField(DeformationFieldType *field)
  {
    this->SetDisplacementField(field);
  }

  DeformationFieldType * GetDeformationField(void)
  {
    return static_cast<DeformationFieldType *> (GetDisplacementField());
  }
#endif

  itkSetObjectMacro(Interpolator, InterpolatorType);
  itkGetModifiableObjectMacro(Interpolator, InterpolatorType);

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

  itkGetConstReferenceMacro(OutputSpacing, SpacingType);

  itkSetMacro(OutputOrigin, PointType);
  virtual void SetOutputOrigin(const double *values);

  itkGetConstReferenceMacro(OutputOrigin, PointType);

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

  itkSetMacro(EdgePaddingValue, PixelType);

  itkGetConstMacro(EdgePaddingValue, PixelType);

  virtual void GenerateOutputInformation() ITK_OVERRIDE;

  virtual void GenerateInputRequestedRegion() ITK_OVERRIDE;

  virtual void BeforeThreadedGenerateData() ITK_OVERRIDE;

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( InputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< typename TInputImage::PixelType::ValueType > ) );
  itkConceptMacro( OutputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< ValueType > ) );
  itkConceptMacro( DisplacementFieldHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< typename TDisplacementField::PixelType::ValueType > ) );
  // End concept checking
#endif

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

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

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

  PixelType     m_EdgePaddingValue;
  SpacingType   m_OutputSpacing;
  PointType     m_OutputOrigin;
  DirectionType m_OutputDirection;

  InterpolatorPointer m_Interpolator;
};
} // end namespace itk

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

#endif