TrackProjector.h

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// $Id: TrackProjector.h,v 1.1 2005/05/25 15:51:47 cattanem Exp $
#ifndef TRACKPROJECTORS_TRACKPROJECTOR_H 
#define TRACKPROJECTORS_TRACKPROJECTOR_H 1

// Include files
// from Gaudi
#include "GaudiAlg/GaudiTool.h"

// from TrackInterfaces
#include "TrackInterfaces/ITrackProjector.h"            // Interface

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

class TrackProjector : public GaudiTool,
                       virtual public ITrackProjector {
public:

  virtual StatusCode project( const State& state,
                              Measurement& meas );
  

  virtual const HepVector& projectionMatrix() const;

  double chi2() const;

  double residual() const;

  double errResidual() const;

  TrackProjector( const std::string& type, 
                  const std::string& name,
                  const IInterface* parent );

  virtual ~TrackProjector( ); 

protected:

  void computeResidual(const State& state, const Measurement& meas);
  void computeErrorResidual(const State& state, const Measurement& meas);

protected:
  double    m_residual;
  double    m_errResidual;
  HepVector m_H;

private:

};
#endif // TRACKPROJECTORS_TRACKPROJECTOR_H

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