ExtMdcTrack.h

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//
// File: ExtMdcTrack.h
// Author: L.L.Wang
//
// Deccription: A class to get MDC reconstuction track,
//             and supply information to  track extrapolation.
//             It is only a interface.
//
// History: 2005.7.4 created by L.L.Wang
//
 
#ifndef EXTMDCTRACK_H
#define EXTMDCTRACK_H
#include "CLHEP/Geometry/Point3D.h"
#include "CLHEP/Matrix/SymMatrix.h"
#include "CLHEP/Vector/ThreeVector.h"
 
#ifndef ENABLE_BACKWARDS_COMPATIBILITY
typedef HepGeom::Point3D<double> HepPoint3D;
#endif
#ifndef ENABLE_BACKWARDS_COMPATIBILITY
typedef HepGeom::Vector3D<double> HepVector3D;
#endif
 
#include "MdcRecEvent/RecMdcKalTrack.h"
#include "MdcRecEvent/RecMdcTrack.h"
 
using namespace std;
 
using namespace CLHEP;
 
static const int NdimMdcErr( 5 );
static const int NdimExtErr( 6 );
static const int NumHelixPar( 5 );
 
class ExtMdcTrack {
public:
  ExtMdcTrack( void );  // Construction.
  ~ExtMdcTrack( void ); // Destruction.
 
  void SetMsgFlag( bool aFlag ) { myMsgFlag = aFlag; };
  bool SetMdcRecTrkCol( RecMdcTrackCol* aPointer );    // Get RecMdcTrackCol from TDS.
  bool SetMdcKalTrkCol( RecMdcKalTrackCol* aPointer ); // Get RecMdcTrackCol from TDS.
  bool SetParId( int pid ) {
    myParID = pid;
    return true;
  };
  bool             GetOneGoodTrk(); // Get a good MdcRecTrk.
  bool             ReadTrk( int pid );
  int              GetTrackID() { return myTrackID; } // Get RecMdcTrackl ID.
  RecMdcTrack*     GetMdcRecTrkPtr() const;           // Get RecMdcTrackl pointer.
  const Hep3Vector GetPosition() const; // Get coordinate of the track at the Mdc->Tof point.
  const Hep3Vector GetMomentum() const; // Get the momentum of the track at the Mdc_>Tof point.
  const HepSymMatrix GetErrorMatrix() const; // Get 6x6 (x,p)Err matrix at the Mdc_>Tof point.
  double GetTrackLength() const; // Get the track length of the track at the Mdc->Tof point.
  inline double GetTrkTof() const { return myTrkTof; };
  //        double GetTOF() const;//Get the Tof of the track at the Mdc->Tof point.
  double GetPt() const;             // Get the pt of the track at the Mdc->Tof point.
  double GetParticleCharge() const; // Get the charge of the track(+1,-1).
 
private:
  void                        Convert(); // Convert data due to unit problem.
  bool                        myMsgFlag;
  int                         myTrackID;
  RecMdcTrackCol*             myMdcTrackCol;
  RecMdcTrackCol::iterator    myMdcRecTrkIter; // Iterater of MdcRecTrk.
  RecMdcKalTrackCol*          myMdcKalTrackCol;
  RecMdcKalTrackCol::iterator myMdcKalTrkIter; // Iterater of MdcRecTrk.
  string                      myInputTrk;
  int                         myParID;
 
  HepVector    myHelixPar; // Mdc reconstucted track's helix 5 parameters.
  HepPoint3D   myPivot;    // Pivot point of the MdcRecTrk' helix.
  HepSymMatrix myMdcErr;   // Error matrix(5x5) of the MdcRecTrk's helix.
  double       myPhiTerm;  // Phi angle of the MdcRecTrk's helix at the Mdc.
  double       myTrkLength;
  double       myTrkTof;
  HepPoint3D   myLPosition;
  //        double myTrackLength[5];//Track length from Kalman fit.
  //        string myParticleName;//Particle name used by GetTOF().
};
 
#endif