itkLandmarkDisplacementFieldSource.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
 *
 *         https://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 itkLandmarkDisplacementFieldSource_h
#define itkLandmarkDisplacementFieldSource_h
 
#include "itkImageSource.h"
#include "itkKernelTransform.h"
 
namespace itk
{
template <typename TOutputImage>
class ITK_TEMPLATE_EXPORT LandmarkDisplacementFieldSource : public ImageSource<TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(LandmarkDisplacementFieldSource);

  using Self = LandmarkDisplacementFieldSource;
  using Superclass = ImageSource<TOutputImage>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputImageRegionType = typename OutputImageType::RegionType;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(LandmarkDisplacementFieldSource);

  static constexpr unsigned int ImageDimension = TOutputImage::ImageDimension;

  using KernelTransformType = KernelTransform<double, Self::ImageDimension>;
  using LandmarkPointSetType = typename KernelTransformType::PointSetType;
  using LandmarkPointType = typename LandmarkPointSetType::PointType;
  using KernelTransformPointerType = typename KernelTransformType::Pointer;
  using LandmarkContainer = typename KernelTransformType::PointsContainer;
  using LandmarkContainerPointer = typename LandmarkContainer::ConstPointer;

  using OutputSizeType = typename OutputImageType::SizeType;

  using OutputIndexType = typename OutputImageType::IndexType;

  using OutputPixelType = typename TOutputImage::PixelType;
  using OutputPixelComponentType = typename OutputPixelType::ValueType;

  using SpacingType = typename TOutputImage::SpacingType;
  using OriginPointType = typename TOutputImage::PointType;
  using DirectionType = typename TOutputImage::DirectionType;

  itkSetObjectMacro(KernelTransform, KernelTransformType);
  itkGetModifiableObjectMacro(KernelTransform, KernelTransformType);
  itkSetMacro(OutputRegion, OutputImageRegionType);
  itkGetConstReferenceMacro(OutputRegion, OutputImageRegionType);
  itkSetMacro(OutputSpacing, SpacingType);
  virtual void
  SetOutputSpacing(const double * spacing);
  itkGetConstReferenceMacro(OutputSpacing, SpacingType);

  itkSetMacro(OutputOrigin, OriginPointType);
  virtual void
  SetOutputOrigin(const double * origin);
  itkSetMacro(OutputDirection, DirectionType);
  itkGetConstReferenceMacro(OutputDirection, DirectionType);
  itkGetConstReferenceMacro(OutputOrigin, OriginPointType);

  itkSetConstObjectMacro(SourceLandmarks, LandmarkContainer);

  itkSetConstObjectMacro(TargetLandmarks, LandmarkContainer);

  void
  GenerateOutputInformation() override;

  [[nodiscard]] ModifiedTimeType
  GetMTime() const override;
 
protected:
  LandmarkDisplacementFieldSource();
  ~LandmarkDisplacementFieldSource() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;

  void
  GenerateData() override;

  void
  PrepareKernelBaseSpline();
 
private:
  KernelTransformPointerType m_KernelTransform{};

  OutputImageRegionType m_OutputRegion{};
 
  SpacingType     m_OutputSpacing{};
  OriginPointType m_OutputOrigin{};
  DirectionType   m_OutputDirection{};
 
  LandmarkContainerPointer m_SourceLandmarks{};
  LandmarkContainerPointer m_TargetLandmarks{};
};
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkLandmarkDisplacementFieldSource.hxx"
#endif
 
#endif