itkLevelSetNeighborhoodExtractor.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 __itkLevelSetNeighborhoodExtractor_h
#define __itkLevelSetNeighborhoodExtractor_h

#include "itkLightProcessObject.h"
#include "itkLevelSet.h"
#include "itkIndex.h"

namespace itk
{
template< class TLevelSet >
class ITK_EXPORT LevelSetNeighborhoodExtractor:
  public LightProcessObject
{
public:
  typedef LevelSetNeighborhoodExtractor Self;
  typedef LightProcessObject            Superclass;
  typedef SmartPointer< Self >          Pointer;
  typedef SmartPointer< const Self >    ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(LevelSetNeighborhoodExtractor, Object);

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

  itkStaticConstMacro(SetDimension, unsigned int,
                      LevelSetType::SetDimension);

  typedef Index< itkGetStaticConstMacro(SetDimension) > IndexType;

  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(void)
  { return m_OutsidePoints; }

  void Locate();

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

  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();

  bool GetLastPointIsInside() const
  { return m_LastPointIsInside; }

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

  void      GenerateDataFull();

  void      GenerateDataNarrowBand();

  double m_LevelSetValue;

  NodeContainerPointer m_InsidePoints;
  NodeContainerPointer m_OutsidePoints;

  LevelSetConstPointer m_InputLevelSet;

  bool                 m_NarrowBanding;
  double               m_NarrowBandwidth;
  NodeContainerPointer m_InputNarrowBand;

  SizeValueType m_ImageSize[SetDimension];
  typename LevelSetImageType::PixelType m_LargeValue;

  std::vector< NodeType > m_NodesUsed;

  bool m_LastPointIsInside;
};
} // namespace itk

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

#endif