itkIsoContourDistanceImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkIsoContourDistanceImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2007-12-18 04:01:46 $
  Version:   $Revision: 1.8 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkIsoContourDistanceImageFilter_h
#define __itkIsoContourDistanceImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkNarrowBand.h"
#include "itkBarrier.h"

namespace itk
{
template <class TInputImage, class TOutputImage>
class ITK_EXPORT IsoContourDistanceImageFilter :
    public ImageToImageFilter<TInputImage,TOutputImage>
{
public:
  typedef IsoContourDistanceImageFilter                Self;
  typedef ImageToImageFilter<TInputImage,TOutputImage> Superclass;
  typedef SmartPointer<Self>                           Pointer;
  typedef SmartPointer<const Self>                     ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(IsoContourDistanceImageFilter, ImageToImageFilter);

  typedef typename Superclass::InputImageType  InputImageType;
  typedef typename Superclass::OutputImageType OutputImageType;

  itkStaticConstMacro(ImageDimension, unsigned int, TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension);

  typedef typename OutputImageType::PixelType  PixelType;
  typedef typename InputImageType::PixelType   InputPixelType;
  typedef typename OutputImageType::RegionType OutputImageRegionType;

  typedef typename InputImageType::SizeType   InputSizeType;
  typedef typename OutputImageType::SizeType  SizeType;
  typedef typename InputImageType::IndexType  InputIndexType;
  typedef typename OutputImageType::IndexType IndexType;

  typedef BandNode<IndexType,PixelType>          BandNodeType;
  typedef NarrowBand<BandNodeType>               NarrowBandType;
  typedef typename NarrowBandType::Pointer       NarrowBandPointer;
  typedef typename NarrowBandType::RegionType    RegionType;
  typedef typename NarrowBandType::ConstIterator ConstBandIterator;
  typedef typename NarrowBandType::Iterator      BandIterator;


  itkSetMacro( LevelSetValue, InputPixelType );
  itkGetMacro( LevelSetValue, InputPixelType );

  itkSetMacro( FarValue, PixelType );
  itkGetMacro( FarValue, PixelType );


  itkSetMacro( NarrowBanding, bool );
  itkGetMacro( NarrowBanding, bool );
  itkBooleanMacro( NarrowBanding );


  void SetNarrowBand( NarrowBandType * ptr );
  NarrowBandPointer GetNarrowBand() const
    { return m_NarrowBand; }

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(InputEqualityComparableCheck,
    (Concept::EqualityComparable<InputPixelType>));
  itkConceptMacro(OutputEqualityComparableCheck,
    (Concept::EqualityComparable<PixelType>));
  itkConceptMacro(SameDimensionCheck,
    (Concept::SameDimension<ImageDimension, OutputImageDimension>));
  itkConceptMacro(DoubleConvertibleToOutputCheck,
    (Concept::Convertible<double, PixelType>));
  itkConceptMacro(InputConvertibleToOutputCheck,
    (Concept::Convertible<InputPixelType, PixelType>));
  itkConceptMacro(OutputAdditiveOperatorsCheck,
    (Concept::AdditiveOperators<PixelType>));
  itkConceptMacro(InputOStreamWritableCheck,
    (Concept::OStreamWritable<InputPixelType>));
  itkConceptMacro(OutputOStreamWritableCheck,
    (Concept::OStreamWritable<PixelType>));

#endif

protected:
  IsoContourDistanceImageFilter();
  ~IsoContourDistanceImageFilter(){};
  void PrintSelf(std::ostream& os, Indent indent) const;
  
  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
                            int threadId );
  void ThreadedGenerateDataFull(const OutputImageRegionType& outputRegionForThread,
                            int threadId );
  void ThreadedGenerateDataBand(const OutputImageRegionType& outputRegionForThread,
                            int threadId );
  void BeforeThreadedGenerateData();

  virtual void GenerateInputRequestedRegion();
  virtual void EnlargeOutputRequestedRegion( DataObject * );

private:
  IsoContourDistanceImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
  InputPixelType            m_LevelSetValue;
  PixelType                 m_FarValue;
  
  bool                      m_NarrowBanding;
  NarrowBandPointer         m_NarrowBand;
  std::vector<RegionType>   m_NarrowBandRegion;
  
  typename Barrier::Pointer m_Barrier;
};

} // namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkIsoContourDistanceImageFilter.txx"
#endif

#endif