itkOrientImageFilter.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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 itkOrientImageFilter_h
#define itkOrientImageFilter_h
 
#include "itkPermuteAxesImageFilter.h"
#include "itkFlipImageFilter.h"
#include "itkSpatialOrientationAdapter.h"
#include <map>
#include <string>
 
namespace itk
{
template <typename TInputImage, typename TOutputImage>
class ITK_TEMPLATE_EXPORT OrientImageFilter : public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(OrientImageFilter);
 
  using Self = OrientImageFilter;
  using Superclass = ImageToImageFilter<TInputImage, TOutputImage>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  using InputImageType = TInputImage;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImagePixelType = typename InputImageType::PixelType;
  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputImageConstPointer = typename OutputImageType::ConstPointer;
  using OutputImageRegionType = typename OutputImageType::RegionType;
  using OutputImagePixelType = typename OutputImageType::PixelType;
  using CoordinateOrientationCode = SpatialOrientation::ValidCoordinateOrientationFlags;
 
  using PermuterType = PermuteAxesImageFilter<TInputImage>;
  using PermuteOrderArrayType = typename PermuterType::PermuteOrderArrayType;
 
  using FlipperType = FlipImageFilter<TInputImage>;
  using FlipAxesArrayType = typename FlipperType::FlipAxesArrayType;
 
  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;
 
  itkNewMacro(Self);
 
  itkTypeMacro(OrientImageFilter, ImageToImageFilter);
 
  itkGetEnumMacro(GivenCoordinateOrientation, CoordinateOrientationCode);
  void
  SetGivenCoordinateOrientation(CoordinateOrientationCode newCode);
 
  inline void
  SetGivenCoordinateDirection(const typename TInputImage::DirectionType & GivenDirection)
  {
    SetGivenCoordinateOrientation(itk::SpatialOrientationAdapter().FromDirectionCosines(GivenDirection));
  }
 
  itkGetEnumMacro(DesiredCoordinateOrientation, CoordinateOrientationCode);
  void
  SetDesiredCoordinateOrientation(CoordinateOrientationCode newCode);
 
  inline void
  SetDesiredCoordinateDirection(const typename TOutputImage::DirectionType & DesiredDirection)
  {
    SetDesiredCoordinateOrientation(itk::SpatialOrientationAdapter().FromDirectionCosines(DesiredDirection));
  }
 
  itkBooleanMacro(UseImageDirection);
  itkGetConstMacro(UseImageDirection, bool);
  itkSetMacro(UseImageDirection, bool);
 
  itkGetConstReferenceMacro(PermuteOrder, PermuteOrderArrayType);
 
  itkGetConstReferenceMacro(FlipAxes, FlipAxesArrayType);
 
  void
  SetDesiredCoordinateOrientationToAxial()
  {
    this->SetDesiredCoordinateOrientation(SpatialOrientation::ITK_COORDINATE_ORIENTATION_RAI);
  }
 
  void
  SetDesiredCoordinateOrientationToCoronal()
  {
    this->SetDesiredCoordinateOrientation(SpatialOrientation::ITK_COORDINATE_ORIENTATION_RSA);
  }
 
  void
  SetDesiredCoordinateOrientationToSagittal()
  {
    this->SetDesiredCoordinateOrientation(SpatialOrientation::ITK_COORDINATE_ORIENTATION_ASL);
  }
 
  void
  GenerateOutputInformation() override;
 
#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro(InputConvertibleToOutput, (Concept::Convertible<InputImagePixelType, OutputImagePixelType>));
  itkConceptMacro(SameDimension, (Concept::SameDimension<Self::InputImageDimension, Self::OutputImageDimension>));
  itkConceptMacro(DimensionShouldBe3, (Concept::SameDimension<Self::InputImageDimension, 3>));
  // End concept checking
#endif
 
protected:
  OrientImageFilter();
  ~OrientImageFilter() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  void
  GenerateInputRequestedRegion() override;
 
  void
  EnlargeOutputRequestedRegion(DataObject * itkNotUsed(output)) override;
 
/*** Member functions used by GenerateData: */
  void
  DeterminePermutationsAndFlips(const SpatialOrientation::ValidCoordinateOrientationFlags fixed_orient,
                                const SpatialOrientation::ValidCoordinateOrientationFlags moving_orient);
 
  bool
  NeedToPermute();
 
  bool
  NeedToFlip();
 
  void
  GenerateData() override;
 
private:
  std::string
  GetMajorAxisFromPatientRelativeDirectionCosine(double x, double y, double z);
 
  CoordinateOrientationCode m_GivenCoordinateOrientation{ SpatialOrientation::ITK_COORDINATE_ORIENTATION_RIP };
  CoordinateOrientationCode m_DesiredCoordinateOrientation{ SpatialOrientation::ITK_COORDINATE_ORIENTATION_RIP };
  bool                      m_UseImageDirection{ false };
 
  PermuteOrderArrayType m_PermuteOrder;
  FlipAxesArrayType     m_FlipAxes;
 
  std::map<std::string, CoordinateOrientationCode> m_StringToCode;
  std::map<CoordinateOrientationCode, std::string> m_CodeToString;
}; // end of class
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkOrientImageFilter.hxx"
#endif
 
#endif