1 #ifndef ALIITSTRACKERU_H
2 #define ALIITSTRACKERU_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
6 //-------------------------------------------------------------------------
7 // ITS upgrade tracker base class
8 //-------------------------------------------------------------------------
10 #include "AliTracker.h"
11 #include "AliESDEvent.h"
12 #include "AliITSUSeed.h"
13 #include "AliITSUTrackCond.h"
15 class AliITSUReconstructor;
17 class AliITSUClusterPix;
23 //-------------------------------------------------------------------------
24 class AliITSUTrackerGlo : public AliTracker {
27 enum { // info from track extrapolation to layer for cluster check
28 kTrXIn ,kTrYIn ,kTrZIn ,kTrPhiIn , // entrance (outer) point on the layer from above
29 kTrXOut,kTrYOut,kTrZOut,kTrPhiOut, // exit (inner) point on the layer
30 kTrPhi0, kTrDPhi, kTrZ0, kTrDZ, // mean phi,dPhi, mean z, dZ (don't change this order)
33 enum {kMissingCluster=0 // no cluster found on this layer
34 ,kTransportFailed=1 // seed did not reach target layer
35 ,kRWCheckFailed =2 // failed to rotate the seed to frame of the layer impact point
37 enum {kStopSearchOnSensor,kClusterNotMatching,kClusterMatching}; // flags for track-to-cluster checks
39 AliITSUTrackerGlo(AliITSUReconstructor* rec);
40 virtual ~AliITSUTrackerGlo();
42 virtual Int_t Clusters2Tracks(AliESDEvent *event);
43 virtual Int_t PropagateBack(AliESDEvent *event);
44 virtual Int_t RefitInward(AliESDEvent *event);
45 virtual Int_t LoadClusters(TTree * treeRP=0);
46 virtual void UnloadClusters();
47 virtual AliCluster* GetCluster(Int_t index) const;
48 //------------------------------------
49 AliITSURecoDet* GetITSInterface() const {return fITS;}
51 //------------------------------------
52 Bool_t NeedToProlong(AliESDtrack* estTr);
53 void Init(AliITSUReconstructor* rec);
54 void FindTrack(AliESDtrack* esdTr);
55 Bool_t InitSeed(AliESDtrack *esdTr);
56 Int_t GetNSeeds(Int_t lr) const {return fSeedsLr[lr].GetEntriesFast();} //RS TOCHECK
57 AliITSUSeed* GetSeed(Int_t lr, Int_t sID) const {return (AliITSUSeed*)fSeedsLr[lr].UncheckedAt(sID);} //RS TOCHECK
58 Bool_t TransportToLayer(AliITSUSeed* seed, Int_t lFrom, Int_t lTo);
59 Bool_t PropagateSeed(AliITSUSeed *seed, Double_t xToGo, Double_t mass, Double_t maxStep=1.0, Bool_t matCorr=kTRUE);
61 Bool_t NeedToKill(AliITSUSeed* seed, Int_t flag);
62 Bool_t GetRoadWidth(AliITSUSeed* seed, int ilrA);
63 Int_t CheckCluster(AliITSUSeed* seed, Int_t lr, Int_t clID);
64 void AddProlongationHypothesis(AliITSUSeed* seed, Int_t lr);
66 AliITSUSeed* NewSeedFromPool(const AliITSUSeed* src=0);
67 void DeleteLastSeedFromPool() {fSeedsPool.RemoveLast();}
68 void ResetSeedTree(); // RS TOCHECK
73 AliITSUTrackerGlo(const AliITSUTrackerGlo&);
74 AliITSUTrackerGlo &operator=(const AliITSUTrackerGlo &tr);
77 AliITSUReconstructor* fReconstructor; // ITS global reconstructor
78 AliITSURecoDet* fITS; // interface to ITS
79 AliESDtrack* fCurrESDtrack; // current esd track in processing
80 Double_t fCurrMass; // current track mass
81 Double_t fTrImpData[kNTrImpData]; // data on track impact on the layer
83 // the seeds management to be optimized
84 TObjArray* fSeedsLr; // seeds at each layer
85 TClonesArray fSeedsPool; // pool for seeds
87 AliITSUTrackCond fTrCond; // tmp, to be moved to recoparam
89 ClassDef(AliITSUTrackerGlo,1) //ITS upgrade tracker
93 //_________________________________________________________________________
94 inline void AliITSUTrackerGlo::AddProlongationHypothesis(AliITSUSeed* seed, Int_t lr)
96 // add new seed prolongation hypothesis
97 fSeedsLr[lr].AddLast(seed);
98 printf("*** Adding: "); seed->Print();