itkCollidingFrontsImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkCollidingFrontsImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2005/04/17 15:51:16 $
  Version:   $Revision: 1.1 $

  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 __itkCollidingFrontsImageFilter_h
#define __itkCollidingFrontsImageFilter_h

#include "itkFastMarchingUpwindGradientImageFilter.h"
#include "itkImageToImageFilter.h"
#include "itkImage.h"

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

  itkNewMacro(Self);

  itkTypeMacro(CollidingFrontsImageFilter, ImageToImageFilter);
  
  typedef typename TOutputImage::PixelType OutputPixelType;
  typedef typename TInputImage::PixelType InputPixelType;
  typedef typename NumericTraits<InputPixelType>::RealType RealType;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TOutputImage::ImageDimension);
  
  typedef TInputImage  InputImageType;
  typedef TOutputImage OutputImageType;
  typedef typename InputImageType::Pointer InputImagePointer;
  typedef typename OutputImageType::Pointer OutputImagePointer;
  
  typedef typename Superclass::OutputImageRegionType OutputImageRegionType;

  typedef itk::FastMarchingUpwindGradientImageFilter<TInputImage,TOutputImage> FastMarchingUpwindGradientImageFilterType;

  typedef typename FastMarchingUpwindGradientImageFilterType::PixelType  PixelType;
  typedef typename FastMarchingUpwindGradientImageFilterType::NodeType NodeType;
  typedef typename FastMarchingUpwindGradientImageFilterType::NodeContainer NodeContainer;
  typedef typename FastMarchingUpwindGradientImageFilterType::NodeContainerPointer NodeContainerPointer;
  typedef typename FastMarchingUpwindGradientImageFilterType::GradientImageType GradientImageType;
  typedef typename FastMarchingUpwindGradientImageFilterType::IndexType  IndexType;

  void SetSeedPoints1( NodeContainer * points )
    {
    m_SeedPoints1 = points;
    this->Modified();
    };
  
  NodeContainerPointer GetSeedPoints1( )
    { return m_SeedPoints1; };

  void SetSeedPoints2( NodeContainer * points )
    {
    m_SeedPoints2 = points;
    this->Modified();
    };
  
  NodeContainerPointer GetSeedPoints2( )
    { return m_SeedPoints2; };
  
  itkSetMacro(NegativeEpsilon, double);
  itkGetMacro(NegativeEpsilon, double);

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

protected:
  CollidingFrontsImageFilter();
  virtual ~CollidingFrontsImageFilter() {}

  void GenerateData();

  void PrintSelf(std::ostream&, Indent) const;
  
private:
  CollidingFrontsImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  NodeContainerPointer m_SeedPoints1;
  NodeContainerPointer m_SeedPoints2;

  bool m_ApplyConnectivity;

  double m_NegativeEpsilon;
};
  
} // end namespace itk

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

#endif

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