TRD/AliTRDtrackerV1.h

   1 #ifndef ALITRDTRACKERV1_H
   2 #define ALITRDTRACKERV1_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id$ */
   7
   8 ////////////////////////////////////////////////////////////////////////////
   9 //                                                                        //
  10 //  The TRD tracker                                                       //
  11 //                                                                        //
  12 //  Authors:                                                              //
  13 //    Alex Bercuci <A.Bercuci@gsi.de>                                     //
  14 //    Markus Fasel <M.Fasel@gsi.de>                                       //
  15 //                                                                        //
  16 /////////////////////////////////////////////////////////////////////////////
  17
  18 #ifndef ALITRDTRACKER_H
  19 #include "AliTRDtracker.h"
  20 #endif
  21
  22 #define DEBUG
  23
  24 /**************************************************************************
  25  * Class Status see source file                                           *
  26  **************************************************************************/
  27
  28 class TFile;
  29 class TTreeSRedirector;
  30 class TClonesArray;
  31
  32 class AliRieman;
  33 class AliESDEvent;
  34
  35 class AliTRDseedV1;
  36 class AliTRDstackLayer;
  37 class AliTRDtrackerFitter;
  38 class AliTRDrecoParam;
  39 class AliTRDtrackV1;
  40 class AliTrackPoint;
  41 class AliTRDtrackerV1 : public AliTRDtracker
  42 {
  43
  44  public:
  45         enum{
  46                 kNTimeBins = 35,
  47                 kNPlanes = 6,
  48                 kNSeedPlanes = 4,
  49                 kMaxTracksStack = 100,
  50                 kNConfigs = 15
  51         };
  52         AliTRDtrackerV1(AliTRDrecoParam *p = 0x0);
  53         AliTRDtrackerV1(const TFile *in, AliTRDrecoParam *p);
  54         virtual ~AliTRDtrackerV1();
  55
  56         Int_t          Clusters2Tracks(AliESDEvent *esd);
  57         static void    GetExtrapolationConfig(Int_t iconfig, Int_t planes[2]);
  58         static void    GetSeedingConfig(Int_t iconfig, Int_t planes[4]);
  59         Int_t          FollowBackProlongation(AliTRDtrackV1 &t);
  60         Int_t          FollowProlongation(AliTRDtrackV1 &t);
  61         Int_t          PropagateBack(AliESDEvent *event);
  62         Int_t          RefitInward(AliESDEvent *event);
  63         void           SetRecoParam(AliTRDrecoParam *p){fRecoParam = p;}
  64         void           UnloadClusters();
  65
  66  protected:
  67         Double_t       BuildSeedingConfigs(AliTRDstackLayer *layer, Int_t *configs);
  68         Int_t          Clusters2TracksSM( AliTRDtracker::AliTRDtrackingSector *sector, AliESDEvent *esd);
  69         Int_t          Clusters2TracksStack(AliTRDstackLayer *layer, TClonesArray *esdTrackList);
  70         void           CookLabel(AliKalmanTrack *pt, Float_t wrong) const;
  71         Int_t          GetSeedingLayers(AliTRDstackLayer *layers, Double_t *params);
  72         void           GetMeanCLStack(AliTRDstackLayer *layers, Int_t *planes, Double_t *params);
  73         AliTRDseedV1*  GetTracklet(AliTRDtrackV1 *trk, Int_t plane, Int_t &idx);
  74         virtual Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p) const;
  75         AliTRDcluster *FindSeedingCluster(AliTRDstackLayer *layers, AliTRDseedV1/*AliRieman*/ *sfit);
  76
  77         Double_t       MakeSeedingPlanes(AliTRDstackLayer *layer);
  78         AliTRDstackLayer *MakeSeedingLayer(AliTRDstackLayer *layers, Int_t Plane);
  79         Int_t          MakeSeeds(AliTRDstackLayer *layers, AliTRDseedV1 *sseed, Int_t *ipar);
  80         AliTRDtrackV1*   MakeTrack(AliTRDseedV1 *seeds, Double_t *params);
  81         Int_t          SetTracklet(AliTRDseedV1 *tracklet);
  82
  83 private:
  84         AliTRDtrackerV1(const AliTRDtrackerV1 &tracker);
  85         AliTRDtrackerV1 &operator=(const AliTRDtrackerV1 &tracker);
  86         Double_t       CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4], Double_t *chi2);
  87         void           ImproveSeedQuality(AliTRDstackLayer *layer, AliTRDseedV1 *cseed);
  88
  89 private:
  90
  91         static Double_t      fgTopologicQA[kNConfigs];         //  Topologic quality
  92         Double_t             fTrackQuality[kMaxTracksStack];  //  Track quality
  93         Int_t                fSeedLayer[kMaxTracksStack];     //  Seed layer
  94         Int_t                fSieveSeeding;                   //! Seeding iterator
  95         TClonesArray        *fTracklets;                      // List of tracklets for all sectors
  96         AliTRDrecoParam     *fRecoParam;                      //  Reconstruction parameters
  97         AliTRDtrackerFitter *fFitter;                         //! Fitter class of the tracker
  98
  99         ClassDef(AliTRDtrackerV1, 1)                          //  Stand alone tracker development class
 100
 101 };
 102 #endif