/data/refman/pasoursint/CMSSW_4_1_8_patch9/src/Alignment/ReferenceTrajectories/interface/DualBzeroReferenceTrajectory.h

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#ifndef Alignment_ReferenceTrajectories_DualBzeroReferenceTrajectory_H
#define Alignment_ReferenceTrajectories_DualBzeroReferenceTrajectory_H

#include "Alignment/ReferenceTrajectories/interface/DualReferenceTrajectory.h"

class BzeroReferenceTrajectory;


class DualBzeroReferenceTrajectory : public DualReferenceTrajectory
{

public:

  typedef TransientTrackingRecHit::ConstRecHitContainer ConstRecHitContainer;

  DualBzeroReferenceTrajectory( const TrajectoryStateOnSurface &referenceTsos,
                                const ConstRecHitContainer &forwardRecHits,
                                const ConstRecHitContainer &backwardRecHits,
                                const MagneticField *magField,
                                MaterialEffects materialEffects,
                                PropagationDirection propDir,
                                double mass,
                                double momentumEstimate,
                                bool useBeamSpot,
                                const reco::BeamSpot &beamSpot);

  virtual ~DualBzeroReferenceTrajectory() {}

  virtual DualBzeroReferenceTrajectory* clone() const { return new DualBzeroReferenceTrajectory(*this); }

protected:

  virtual ReferenceTrajectory* construct(const TrajectoryStateOnSurface &referenceTsos, 
                                         const ConstRecHitContainer &recHits,
                                         double mass, MaterialEffects materialEffects,
                                         const PropagationDirection propDir,
                                         const MagneticField *magField,
                                         bool useBeamSpot,
                                         const reco::BeamSpot &beamSpot) const;

  virtual AlgebraicVector extractParameters(const TrajectoryStateOnSurface &referenceTsos) const;

  double theMomentumEstimate;

};

#endif