// -*- mode: c++ -*-
//
// $Id: BrTrack.h,v 1.3 2001/08/14 19:26:23 pchristi Exp $
// $Author: pchristi $
// $Date: 2001/08/14 19:26:23 $
// $Copyright: (C) 2001 BRAHMS Collaboration <brahmlib@rhic.bnl.gov>
//
#ifndef BRAT_BrTrack
#define BRAT_BrTrack

#ifndef BRAT_BrLine3D
#include "BrLine3D.h"
#endif
#ifndef BRAT_BrVector3D
#include "BrVector3D.h"
#endif

class BrTrack : public BrLine3D
{
private:
  Float_t    fCovMatrix[16];  //Covariance matrix 
  Float_t    fQuality;        // Chisquare or confidence level for track

  void ClearCovariance();

public:
  BrTrack();
//    BrTrack(const BrTrack &track); 
//    ~BrTrack();

  virtual void  Draw(Option_t *option = "");

  virtual       Float_t     GetCovariance(Int_t x, Int_t y) const;
  virtual const BrVector3D& GetPos() const  {return GetOrigin();}
  virtual       Float_t     GetPosError(Int_t index) const;
  virtual       Float_t     GetQuality(void) const {return fQuality;}  
  virtual const BrVector3D& GetSlope() const  {return GetDirection();}
  virtual       Float_t     GetSlopeError(Int_t index) const;
  virtual       void        GetXYPositionAtZ(Float_t &x, Float_t &y,
					     Float_t z);
  
  virtual void    Print(Option_t* option = "") const; //*MENU*

  virtual void SetCovariance(Int_t x, Int_t y, Float_t value);
  virtual void SetPos(const BrVector3D &pos) {SetOrigin(pos);}
  virtual void SetPos(Double_t x, Double_t y, Double_t z){SetOrigin(x, y, z);}
  virtual void SetQuality(Float_t quality) { fQuality = quality;}
  virtual void SetSlope(const BrVector3D &slope) {SetDirection(slope);}
  virtual void SetSlope(Double_t x, Double_t y, Double_t z)
  {SetDirection(x, y, z);}
  
  ClassDef(BrTrack, 1) // BRAT track class
};
#endif

//____________________________________________________________________
//
// $Log: BrTrack.h,v $
// Revision 1.3  2001/08/14 19:26:23  pchristi
// Removed detructors and copy constructors where the default was ok.
//
// Revision 1.2  2001/06/25 14:30:52  cholm
// Made Print conform to TObject
//
// Revision 1.1.1.1  2001/06/21 14:55:03  hagel
// Initial revision of brat2
//
// Revision 1.1  2001/06/17 17:42:02  pchristi
// The new tracking classes.
//
//