TrLinearExtrapolator.h

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// $Id: $
#ifndef TRACKEXTRAPOLATORS_TRLINEAREXTRAPOLATOR_H 
#define TRACKEXTRAPOLATORS_TRLINEAREXTRAPOLATOR_H 1

// Include files

// from TrExtrapolators
#include "TrackExtrapolators/TrExtrapolator.h"

// Forward declaration
class Track;
class State;

class TrLinearExtrapolator: public TrExtrapolator {

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

  virtual ~TrLinearExtrapolator();

  StatusCode propagate( State& state,
                        double z,
                        ParticleID pid = ParticleID(211) );

  StatusCode propagate( State& state,
                        HepPlane3D& plane,
                        ParticleID pid = ParticleID(211) );

private:

  HepMatrix m_F;
};

#endif // TRACKEXTRAPOLATORS_TRLINEAREXTRAPOLATOR_H

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