itkLevelSetDomainMapImageFilter.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 itkLevelSetDomainMapImageFilter_h
#define itkLevelSetDomainMapImageFilter_h
 
#include "itkImageToImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkImageRegionIteratorWithIndex.h"
#include <list>
#include <utility>
#include <vector>
 
namespace itk
{
template <typename TInputImage, typename TOutputImage>
class ITK_TEMPLATE_EXPORT LevelSetDomainMapImageFilter : public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(LevelSetDomainMapImageFilter);
 
  using Self = LevelSetDomainMapImageFilter;
  using Superclass = ImageToImageFilter<TInputImage, TOutputImage>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(LevelSetDomainMapImageFilter);
 
  using InputImageType = TInputImage;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImagePixelType = typename InputImageType::PixelType;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImageSizeType = typename InputImageType::SizeType;
  using InputImageSizeValueType = typename InputImageSizeType::SizeValueType;
  using InputImageIndexType = typename InputImageType::IndexType;
 
  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputImageIndexType = typename OutputImageType::IndexType;
  using OutputImagePixelType = typename OutputImageType::PixelType;
 
  using InputConstIteratorType = ImageRegionConstIteratorWithIndex<InputImageType>;
  using InputIndexIteratorType = ImageRegionIteratorWithIndex<InputImageType>;
  using InputIteratorType = ImageRegionIterator<InputImageType>;
 
  using OutputConstIteratorType = ImageRegionConstIteratorWithIndex<OutputImageType>;
  using OutputIndexIteratorType = ImageRegionIteratorWithIndex<OutputImageType>;
  using OutputIteratorType = ImageRegionIterator<OutputImageType>;

  class LevelSetDomain
  {
  public:
    LevelSetDomain() = default;
 
    LevelSetDomain(const InputImageRegionType & reg, InputImagePixelType iList)
      : m_Region(reg)
      , m_IdList(std::move(iList))
    {}
 
    const InputImageRegionType *
    GetRegion() const
    {
      return &(this->m_Region);
    }
 
    const InputImagePixelType *
    GetIdList() const
    {
      return &(this->m_IdList);
    }
 
  private:
    InputImageRegionType m_Region;
    InputImagePixelType  m_IdList;
  };

  using DomainMapType = std::map<IdentifierType, LevelSetDomain>;

  const DomainMapType &
  GetDomainMap() const;
 
protected:
  LevelSetDomainMapImageFilter();
  ~LevelSetDomainMapImageFilter() override = default;

  InputImageRegionType
  ComputeConsistentRegion(const InputImageRegionType & inputRegion) const;

  void
  GenerateData() override;

  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
private:
  DomainMapType m_DomainMap{};
 
  const InputImageType * m_InputImage{};
  OutputImageType *      m_OutputImage{};
};
 
} /* namespace itk */
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkLevelSetDomainMapImageFilter.hxx"
#endif
 
#endif