itkSpatialObjectToPointSetFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkSpatialObjectToPointSetFilter.h,v $
  Language:  C++
  Date:      $Date: 2003/11/27 20:16:28 $
  Version:   $Revision: 1.2 $

  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 __itkSpatialObjectToPointSetFilter_h
#define __itkSpatialObjectToPointSetFilter_h

#include "itkPointSet.h"
#include "itkMeshSource.h"
#include "itkPointBasedSpatialObject.h"

namespace itk
{
  
template <class TInputSpatialObject, class TOutputPointSet>
class ITK_EXPORT SpatialObjectToPointSetFilter : public MeshSource<TOutputPointSet>
{
public:
  typedef SpatialObjectToPointSetFilter  Self;
  typedef MeshSource<TOutputPointSet>  Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
  typedef TOutputPointSet  OutputPointSetType;
  typedef typename OutputPointSetType::Pointer OutputPointSetPointer;

  typedef DataObject::Pointer DataObjectPointer;

  itkNewMacro(Self);

  itkTypeMacro(SpatialObjectToPointSetFilter,ProcessObject);

  typedef TInputSpatialObject InputSpatialObjectType;
  typedef typename InputSpatialObjectType::Pointer        InputSpatialObjectPointer;
  typedef typename InputSpatialObjectType::ConstPointer   InputSpatialObjectConstPointer;
  typedef typename TInputSpatialObject::ChildrenListType  ChildrenListType;


  itkStaticConstMacro(ObjectDimension, unsigned int,
                      InputSpatialObjectType::ObjectDimension);

  typedef itk::SpatialObjectPoint<itkGetStaticConstMacro(ObjectDimension)> PointType;
  typedef itk::PointBasedSpatialObject<itkGetStaticConstMacro(ObjectDimension)> PointBasedSpatialObjectType;

  virtual void SetInput( const InputSpatialObjectType *object);
  virtual void SetInput( unsigned int, const InputSpatialObjectType * object);
  const InputSpatialObjectType * GetInput(void);
  const InputSpatialObjectType * GetInput(unsigned int idx);

  itkSetMacro(ChildrenDepth, unsigned int);
  itkGetMacro(ChildrenDepth, unsigned int);


  /* Set the sampling factor of the object. The resulting pointset will have a size
   * inversely proportional to the sampling factor.*/
  itkSetMacro(SamplingFactor, unsigned int);
  itkGetMacro(SamplingFactor, unsigned int);

protected:
  SpatialObjectToPointSetFilter();
  ~SpatialObjectToPointSetFilter();

  virtual void GenerateOutputInformation(){}; // do nothing
  virtual void GenerateData();

  unsigned int m_ChildrenDepth;

  virtual void PrintSelf(std::ostream& os, Indent indent) const;

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

  unsigned int m_SamplingFactor; //default 1


};

} // end namespace itk

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

#endif

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