FitNode.h

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#ifndef TRACKFITEVENT_FITNODE_H
#define TRACKFITEVENT_FITNODE_H 1

// from CLHEP
#include "CLHEP/Matrix/Matrix.h"

// from TrackEvent
#include "Event/Node.h"
#include "Event/Measurement.h"

class FitNode: public Node {
public:
  FitNode();

  FitNode(Measurement& meas );

  virtual ~FitNode();

  const HepMatrix& transportMatrix() const  { return m_transportMatrix; }

  const HepVector& transportVector() const { return m_transportVector; }

  const HepSymMatrix& noiseMatrix() const { return m_noiseMatrix; }

  void setTransportMatrix( const HepMatrix& transportMatrix ) {
    m_transportMatrix = transportMatrix;
  }
  
  void setTransportVector( const HepVector& transportVector ) {
    m_transportVector = transportVector;
  }
  
  void setNoiseMatrix( const HepSymMatrix& noiseMatrix ) {
    m_noiseMatrix = noiseMatrix;
  }  

  State& predictedState()
  { return *m_predictedState; }

  const State& predictedState() const             
  { return *m_predictedState; }

  void setPredictedState( const State& predictedState );

  State& filteredState()
  {return *m_filteredState; }

  const State& filteredState() const 
  {return *m_filteredState; }

  void setFilteredState( const State& filteredState );

  void addNode( const FitNode& node );

  double z() const   { return m_measurement->z(); };

private:

  HepMatrix      m_transportMatrix;  
  HepVector      m_transportVector;  
  HepSymMatrix   m_noiseMatrix;      
  State*         m_predictedState;   
  State*         m_filteredState;    
};


#endif // TRACKFITEVENT_FITNODE_H

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