itkLevelSetNeighborhoodExtractor.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 itkLevelSetNeighborhoodExtractor_h
#define itkLevelSetNeighborhoodExtractor_h
 
#include "itkLightProcessObject.h"
#include "itkLevelSet.h"
#include "itkIndex.h"
 
namespace itk
{
template <typename TLevelSet>
class ITK_TEMPLATE_EXPORT LevelSetNeighborhoodExtractor : public LightProcessObject
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(LevelSetNeighborhoodExtractor);

  using Self = LevelSetNeighborhoodExtractor;
  using Superclass = LightProcessObject;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(LevelSetNeighborhoodExtractor);

  using LevelSetType = LevelSetTypeDefault<TLevelSet>;
  using LevelSetImageType = typename LevelSetType::LevelSetImageType;
  using LevelSetPointer = typename LevelSetType::LevelSetPointer;
  using LevelSetConstPointer = typename LevelSetType::LevelSetConstPointer;
  using PixelType = typename LevelSetType::PixelType;
  using NodeType = typename LevelSetType::NodeType;
  using NodeContainer = typename LevelSetType::NodeContainer;
  using NodeContainerPointer = typename LevelSetType::NodeContainerPointer;

  static constexpr unsigned int SetDimension = LevelSetType::SetDimension;

  using IndexType = Index<Self::SetDimension>;

  itkSetConstObjectMacro(InputLevelSet, LevelSetImageType);
  itkGetConstObjectMacro(InputLevelSet, LevelSetImageType);

  itkSetMacro(LevelSetValue, double);

  itkGetConstMacro(LevelSetValue, double);

  itkSetClampMacro(NarrowBandwidth, double, 0.0, NumericTraits<double>::max());

  itkGetConstMacro(NarrowBandwidth, double);

  itkSetMacro(NarrowBanding, bool);

  itkGetConstMacro(NarrowBanding, bool);
  itkBooleanMacro(NarrowBanding);

  void
  SetInputNarrowBand(NodeContainer * ptr);
  itkGetModifiableObjectMacro(InputNarrowBand, NodeContainer);

  NodeContainerPointer
  GetInsidePoints()
  {
    return m_InsidePoints;
  }

  NodeContainerPointer
  GetOutsidePoints()
  {
    return m_OutsidePoints;
  }

  void
  Locate();
 
protected:
  LevelSetNeighborhoodExtractor();
  ~LevelSetNeighborhoodExtractor() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  typename LevelSetImageType::PixelType
  GetLargeValue() const
  {
    return m_LargeValue;
  }
 
  const NodeType &
  GetNodeUsedInCalculation(unsigned int idx) const
  {
    return m_NodesUsed[idx];
  }
 
  virtual void
  Initialize();
 
  virtual double
  CalculateDistance(IndexType & index);
 
  void
  GenerateData() override;
 
  bool
  GetLastPointIsInside() const
  {
    return m_LastPointIsInside;
  }
 
private:
  void
  GenerateDataFull();
 
  void
  GenerateDataNarrowBand();
 
  double m_LevelSetValue{ 0.0 };
 
  NodeContainerPointer m_InsidePoints{};
  NodeContainerPointer m_OutsidePoints{};
 
  LevelSetConstPointer m_InputLevelSet{};
 
  bool                 m_NarrowBanding{ false };
  double               m_NarrowBandwidth{ 12.0 };
  NodeContainerPointer m_InputNarrowBand{};
 
  typename LevelSetImageType::RegionType m_ImageRegion{};
  typename LevelSetImageType::PixelType  m_LargeValue{};
 
  std::vector<NodeType> m_NodesUsed{};
 
  bool m_LastPointIsInside{ false };
};
} // namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkLevelSetNeighborhoodExtractor.hxx"
#endif
 
#endif