#ifndef BRAT_BrDetectorTrack
#define BRAT_BrDetectorTrack
//
//  $Id: BrDetectorTrack.h,v 1.1.1.1 2001/06/21 14:55:02 hagel Exp $
//
//  Revision 1.9  2000/03/24 14:19:12  pchristi
//  Added Quality to BrDetectorTrack
//
//////////////////////////////////////////////////////////////////////////
//                                                                      //
//    BrDetectorTrack                                                   //
//                                                                      //
//    BRAHMS Detector Track class                                       //
//                                                                      //
//    Author  : Kris Hagel (hagel@comp.tamu.edu)                        //
//    Created : 9-Mar-1998                                              //
//    Version : 1.0                                                     //
//    Changed : November 1998                                           //
//                                                                      //
//                                                                      //
//                                                                      //
//    Description:                                                      //
//      A self contained description of local tracks. It is presently   //
//    not possible to see what tracking station the track belongs to.   //
//    It is assumed that a container , or data table with a detector    //
//    name is responsible for tracks. Also if the are copied to a final //
//    track it is clear where a given track belongs.                    //
//    The pointers to the local tracks and their ghost are not kept. It //
//    is the assumption that this will be done usding associate classes //
//    This has the advantage that sizes are kept down until             //
//////////////////////////////////////////////////////////////////////////

// Root Classes
#ifndef ROOT_TObject
#include "TObject.h"
#endif

// Brahms Classes
//
#ifndef BRAT_BrVector3D
#include "BrVector3D.h"
#endif

#ifndef BRAT_BrMath
#include "BrMath.h"
#endif

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


#define BrDetectortrackObsolete

class BrLocalTrack;
class BrDetectorTrack: public TObject {

public:
  BrDetectorTrack();
    
  virtual ~BrDetectorTrack() { };

  const BrVector3D   GetPos() const  {return fPos;}
  const BrVector3D   GetAlpha() const {return fAlpha;}
  Int_t GetFlag()    const {return fFlag;}
  Int_t GetID()      const {return fId;}
  Int_t GetGroupID() const {return fGroupId;}
  Double_t GetQuality(void) const { return fQuality; }  
  BrLine3D GetTrackLine();
  BrLocalTrack* GetLocalTrack() const {return fLocalTrack;}


  void SetPos(const Float_t* pos); 
  void SetAlpha(const Float_t* alpha);
  void SetPos(const BrVector3D& pos) { fPos = pos;};
  void SetAlpha(const BrVector3D& alpha) { fAlpha = alpha;};
  void SetFlag(Int_t i)        {fFlag = i;}
  void SetID(Int_t i)          {fId = i;}
  void SetGroupID(Int_t i)     {fGroupId = i;}
  void SetQuality(Double_t quality) { fQuality = quality; }
  void SetLocalTrack(BrLocalTrack* p) {fLocalTrack = p;}

Float_t RelativeOverlap(const BrDetectorTrack *dt_p, Float_t zl, Float_t r = 0.2);
  
    
private:
   Int_t      fId;      // Unique Id (for a given Data Table)
   Int_t      fGroupId; // Id for sets of detector tracks.
   BrVector3D fPos;     // Position of track - in local detector coordinates
   BrVector3D fAlpha;   // Direction vector of track - in local detector coordinates 
   Int_t      fFlag;    // Status, quality flag.
   Double_t   fQuality; // Quality indicator (could be chi**2 of track)
   Int_t      fLocalTrackId;  //! Id for local track origin of this tracks
   BrLocalTrack* fLocalTrack; //! pointer to localtrack
 public:
  friend ostream& operator<< (ostream& os, BrDetectorTrack* track_p);

public:

    ClassDef(BrDetectorTrack,1)  // BRAHMS Detector Track Class
};
#endif


//  $Log: BrDetectorTrack.h,v $
//  Revision 1.1.1.1  2001/06/21 14:55:02  hagel
//  Initial revision of brat2
//
//  Revision 1.13  2001/04/18 20:16:59  videbaek
//  moved cvs log
//
//  Revision 1.12  2000/05/09 14:21:20  pchristi
//  Added GetQuality
//
//  Revision 1.11  2000/05/05 09:50:29  bjornhs
//  Added RelativeOverlap in BrLocalTrack
//
//  Revision 1.10  2000/04/28 21:18:24  videbaek
//  Updates to BrLocalTrack. Added fit method; Status is changed. Uses
//  MarkAsBad, IsBad instead of fixed 999.
//  Cleanup of BrModuleMatchtrack. Added histohgrams.
//
//  Revision 1.8  1999/04/02 15:29:56  hagel
//  Zero elements in constructor BrDetectorTrack.h
//
//  Revision 1.7  1999/03/07 00:00:46  hagel
//
//  Revision 1.6  1999/01/21 23:23:27  hagel
//  1. Changed convention for checking includes.  Current convention is:
//     BRAT_Br...... eg BRAT_BrModule ala ROOT.
//  2. Added CVS logs to .h files that didn't have them.
//  3. Moved checking of include definition to first line for easier reading
//  4. Put checks before all includes in the include files as per BRAT specifications
//  5. Added BrGeantHeader to Geant Makefile
//  6. All changes have been checked to compile on NT ala Cygnus
//
//  Revision 1.5  1998/12/21 20:23:11  videbaek
//  Included MRS tracking, and track combine module as part of a more
//  generalized set of Methods and classes.
//
//  Revision 1.4  1998/12/04 21:35:35  videbaek
//  Started updating structures for tracking. Using BrVector3D
//  in many places where double* or float* was used before.
//  Fix type SHLIB->$(SHLIB) ..
//
//