#ifndef _BRTRACK_H
#define _BRTRACK_H

//////////////////////////////////////////////////////////////////////
//                                                                  //
//    BrTrack                                           //
//                                                                  //
//    BRAHMS Detector Track class                                   //
//                                                                  //
//    Author  : Kris Hagel (hagel@comp.tamu.edu)					//
//    Created : 7-Apr-1998                                          //
//    Version : 1.0                                                 //
//    Changed :                                                     //
//                                                                  //
//////////////////////////////////////////////////////////////////////

// Root Classes
#include "BrBaseTrack.h"

class BrTrack: public BrBaseTrack {

public:
    BrTrack();
    
    virtual ~BrTrack();

	virtual Float_t GetP12()   {return fP12;}
	virtual Float_t GetP34()   {return fP34;}
	virtual Float_t GetP45()   {return fP45;}
	virtual Float_t GetP345()  {return fP345;}
	virtual Float_t GetTheta() {return fTheta;}
	virtual Float_t GetPhi()   {return fPhi;}

	virtual void SetP12(Float_t x)   {fP12  = x;}
	virtual void SetP34(Float_t x)   {fP34  = x;}
	virtual void SetP45(Float_t x)   {fP45  = x;}
	virtual void SetP345(Float_t x)  {fP345 = x;}
	virtual void SetTheta(Float_t x) {fTheta = x;}
	virtual void SetPhi(Float_t x)   {fPhi = x;}
   
private:


   Float_t fP12;				//momentum derived from T1 and T2
   Float_t fP34;				//momentum derived from T3 and T4
   Float_t fP45;				//momentum derived from T4 and T5
   Float_t fP345;				//momentum derived from T3, T4 and T5
   Float_t fTheta;				//Theta of the track
   Float_t fPhi;				//Phi of the track

public:

    ClassDef(BrTrack,1)  // BRAHMS Main Track Class
};

/*
NA49 track definitions
       Char_t fCharge       from track_t qpxz
       Char_t fNPoint       from rtrack_t n_point 
       Char_t fNFitPoint    from track_t  n_fit_point 
       Char_t fNDedxPoint   from rtrack_t n_dedx_point
       Char_t fNMaxPoint    from rtrack_t n_max_point
       Char_t fIdDet        from track_t  id_det       
        Int_t fIflag        from track_t  iflag        
       Char_t fTofIdDet     from track_tof_t id_det  
       Char_t fTofIflag     from track_tof_t iflag   
       Char_t fTofX         from track_tof_t x
      Float_t fPx           from track_t px         
      Float_t fPy           from track_t py         
      Float_t fPz           from track_t pz         
      Float_t fSigPx        from track_t sig_px         
      Float_t fSigPy        from track_t sig_py         
      Float_t fSigPz        from track_t sig_pz         
      Float_t fMass2        from track_tof_t mass2   
      Float_t fSigMass2     from track_tof_t sig_mass2   
      Float_t fBx           from track_t bx
      Float_t fBy           from track_t by
      Float_t fPchi2        from track_t pchi2;
      Float_t fTmeanCharge  from rtrack_t tmean_charge
      Float_t fXFirst       from rtrack_t x_first     
      Float_t fYFirst       from rtrack_t y_first     
      Float_t fZFirst       from rtrack_t z_first     
      Float_t fXLast        from rtrack_t x_last      
      Float_t fYLast        from rtrack_t y_last      
      Float_t fZLast        from rtrack_t z_last      
      Float_t fWeight       weight factor for future use       
      Float_t fRandom       random track identifier for sample splitting
        Int_t fLabel        track label insise T49Event
        Int_t fPointIndex   Index into the event's fPointList  
*/
     
#endif