itkListSampleToHistogramGenerator.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkListSampleToHistogramGenerator.h,v $
  Language:  C++
  Date:      $Date: 2003/12/15 01:00:46 $
  Version:   $Revision: 1.7 $

  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 __itkListSampleToHistogramGenerator_h
#define __itkListSampleToHistogramGenerator_h

#include "itkObject.h"
#include "itkListSampleBase.h"
#include "itkHistogram.h"
#include "itkStatisticsAlgorithm.h"
#include "itkDenseFrequencyContainer.h"

namespace itk{
namespace Statistics{

template< class TListSample, 
          class THistogramMeasurement,  
          class TFrequencyContainer = DenseFrequencyContainer< float > >
class ITK_EXPORT ListSampleToHistogramGenerator :
    public Object
{
public:
  typedef ListSampleToHistogramGenerator Self;
  typedef Object Superclass;
  typedef SmartPointer<Self>   Pointer;
  typedef SmartPointer<const Self> ConstPointer;
  
  itkTypeMacro(ListSampleToHistogramGenerator, Object) ;
  
  itkNewMacro(Self) ;

  itkStaticConstMacro(MeasurementVectorSize, unsigned int,
                      TListSample::MeasurementVectorSize);

  typedef Histogram< THistogramMeasurement, 
                     itkGetStaticConstMacro(MeasurementVectorSize),
                     TFrequencyContainer > HistogramType ;

  typedef typename HistogramType::SizeType HistogramSizeType ;

  void SetListSample(const TListSample* list)
  { m_List = list ; }

  void SetMarginalScale(float scale)
  { m_MarginalScale = scale ; }

  void SetNumberOfBins(HistogramSizeType sizes)
  { m_Sizes = sizes ; }

  const HistogramType* GetOutput() const
  { return m_Histogram ; }

  void Update() 
  { this->GenerateData() ; }

protected:
  ListSampleToHistogramGenerator() ;
  virtual ~ListSampleToHistogramGenerator() {}
  void GenerateData() ;

private:
  const TListSample* m_List ;
  typename HistogramType::Pointer m_Histogram ;
  HistogramSizeType m_Sizes ;
  float m_MarginalScale ;

} ; // end of class

} // end of namespace Statistics 
} // end of namespace itk 

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

#endif

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