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/Vector/ThreeVector.h"
#include "CLHEP/Matrix/SymMatrix.h"
#include "CLHEP/Geometry/Point3D.h"
 
#ifndef ENABLE_BACKWARDS_COMPATIBILITY
typedef HepGeom::Point3D<double> HepPoint3D;
#endif
#ifndef ENABLE_BACKWARDS_COMPATIBILITY
typedef HepGeom::Vector3D<double> HepVector3D;
#endif
      
 
 
#include "MdcRecEvent/RecMdcTrack.h"
#include "MdcRecEvent/RecMdcKalTrack.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