Reconstruction/MdcPatRec/TrkFitter/include/TrkFitter/TrkHelixRep.h

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//--------------------------------------------------------------------------
// File and Version Information:
//      $Id: TrkHelixRep.h,v 1.1.1.1 2005/04/21 06:26:56 maqm Exp $
//
// Description:
//      Implementation class for TrkRep using a single helix
//
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Author List:
//      Steve Schaffner
//
//------------------------------------------------------------------------
 
#ifndef TRKHELIXREP_HH
#define TRKHELIXREP_HH
 
#include "TrkBase/HelixTraj.h"
#include "TrkFitter/TrkSimpleRep.h"
 
class TrkHelixRep : public TrkSimpleRep {
public:
  //******************************************
  // Constructors and such (copy ctor is protected)
  //******************************************
  // Construct from scratch
  TrkHelixRep( const TrkExchangePar& inPar, TrkRecoTrk* myTrack, PdtPid::PidType hypo,
               const TrkHotList* = 0 );
  TrkHelixRep( const TrkExchangePar& inPar, TrkRecoTrk* trk, PdtPid::PidType hypo, int nact,
               int nsv, int ndc, double chi2, double startFoundRange, double endFoundRange );
  virtual ~TrkHelixRep();
  // specific clone operation for this class
  virtual TrkHelixRep* clone( TrkRecoTrk* newTrack ) const;
  virtual TrkHelixRep* cloneNewHypo( PdtPid::PidType hypo );
 
  //******************************************
  // Global quantities:
  //******************************************
  virtual TrkDifTraj&       traj();
  virtual const TrkDifTraj& traj() const;
  const IfdKey&             myKey() const;
 
  //******************************************
  // Information about track at a given position
  //******************************************
  virtual TrkExchangePar helix( double fltLen ) const;
 
  virtual bool resid( const TrkHitOnTrk* h, double& residual, double& residErr,
                      bool exclude ) const;
  //******************************************
  // Printing
  //******************************************
  virtual void printAll( std::ostream& ostr ) const;
  virtual void print( std::ostream& ostr ) const;
 
  virtual TrkSimpTraj&       simpTraj();
  virtual const TrkSimpTraj& simpTraj() const;
 
protected:
  // copy constructor -- invoked by clone
  TrkHelixRep( const TrkHelixRep& right, TrkRecoTrk* trk, PdtPid::PidType );
 
private:
  TrkHelixRep& operator=( const TrkHelixRep& right );
  HelixTraj    _traj;
};
#endif