#ifndef BRAT_BrLocalTrackingModule
#define BRAT_BrLocalTrackingModule
//  $Id: BrLocalTrackingModule.h,v 1.1.1.1 2001/06/21 14:55:11 hagel Exp $
//  $Log: BrLocalTrackingModule.h,v $
//  Revision 1.1.1.1  2001/06/21 14:55:11  hagel
//  Initial revision of brat2
//
//  Revision 1.2  1999/12/23 15:58:56  videbaek
//  Enhanched use of ClonesArrays for temporary data. i.e. tracks hits
//  so they become accessible to the outside.
//
//  Revision 1.1  1999/03/07 22:37:38  videbaek
//  Added DetectorHit and BrLocalTrackingModule as a more general way to
//  deal with local tracks and hits. Initial insertion. Not fully debugged.
//

///////////////////////////////////////////////////////////////////////
//                                                                   //
//    BrLocalTrackingModule                                          //
//                                                                   //
//    Brat Modules for local tracking in detectors;                  //
//    Presently only implemented for TPC and DriftChambers.          //
//                                                                   //
//    detector geometry                                              //
//                                                                   //
//    Author  : F.Videbaek  videbaek@bnl.gov                         //
//    Created : 02/Mar/1999                                          //
//    Changed : December 99
//              Add additional access to intermediate results        //
//
//                                                                   //
///////////////////////////////////////////////////////////////////////

// BRAHMS classes

#if !defined BRAT_BrModule
# include "BrModule.h"
#endif

#if !defined BRAT_BrTrackDefines
# include "BrTrackDefines.h"
#endif

#if !defined BRAT_BrClonesArray
# include "BrClonesArray.h"
#endif

#if !defined BRAT_BrLocalTrack
# include "BrLocalTrack.h"
#endif

class BrDataTable;

class BrLocalTrackingModule : public BrModule {

public:
  BrLocalTrackingModule();
  BrLocalTrackingModule(Char_t *Name,Char_t *Title);

  virtual ~BrLocalTrackingModule();

  virtual BrClonesArray* GetDetectorHits()   const {return fDetectorHits;}
  virtual Int_t          GetNoDetectorHits() const {return fNDetectorHits;}
  virtual BrClonesArray* GetLocalTracks()    const {return fLocalTracks;}
  virtual Int_t          GetNoLocalTracks()  const {return fNLocalTracks;}
  virtual BrClonesArray* GetTrackGroups()    const {return fTrackGroups;}
  virtual Int_t          GetNoTrackGroups()  const {return fNTrackGroups;}
private:

protected:
  void Clear();
  void CreateClonesArrays();
  void DeleteBadTrack();
  void FillHitContainer(Int_t imod, TObjArray *SelectedHits);
  void FitLocalTrack(BrLocalTrack* localtrack, 
		       Float_t *sol, Float_t *covar, Float_t &chisq, Int_t &ifail);
  void FillTrackGroups(Int_t nrow);
  void FillDetectorTracks(BrEventNode* OutputNode);
  void FillLocalTracks(BrEventNode* OutputNode);
  void RemoveTrack(BrLocalTrack *loctra_p);
  
  
  BrClonesArray *fDetectorHits;         // Detector Hit list
  Int_t          fNDetectorHits;        // No of hits in Clones array
  BrClonesArray *fLocalTracks;          // Local tracks (internal usage)
  Int_t          fNLocalTracks;         // No of Local Tracks
  BrClonesArray *fTrackHitAsco;         // Associated array between Detectortracks and detectorHits.
  BrClonesArray *fTrackGroups;
  Int_t          fNTrackGroups;         // Number of TrackGroups (i.e. tracks judged tobe identical)
  BrDataTable   *fDetectorTracks;       // Detector Track list

  ClassDef(BrLocalTrackingModule,1)     // BRAHMS Local Tracking Module Interface

};

#endif