1 #ifndef ALIITSCLUSTERTABLE_H
2 #define ALIITSCLUSTERTABLE_H
3 /* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5 //////////////////////////////////////////////////////////////////////////
6 // Class used to simplify some operations with clusters. //
7 // -Function FillArray fills an array wich contains, for each //
8 // ITS module, an array with the indices of all the clusters detected //
9 // by the module. The indices correspond to the cluster indices in class//
10 // AliITSlayer of AliITStrackerV2. //
11 // This function is used in AliITStrackerSA::FindTracks. //
12 // -Function FillArrayLabel fills an array wich contains, for each //
13 // particle label, and for each layer, the information on clusters: //
14 // 0 if there is no cluster, 1 if there is a cluster with this label. //
15 // This function is used to define trackable tracks. //
16 ///////////////////////////////////////////////////////////////////////////
25 class AliITStrackerSA;
27 class AliITSclusterV2;
29 class AliITSclusterTable : public TObject {
35 AliITSclusterTable(AliITSgeom* geom, AliITStrackerSA* tracker, Double_t* primaryVertex);
36 void FillArray(TTree* clusterTree);
37 void FillArrayLabel(Int_t numberofparticles);
38 void FillArrayCoorAngles();
39 void GetCoorAngles(AliITSclusterV2* cl,Int_t module,Double_t &phi,Double_t &lambda,Float_t &x,Float_t &y,Float_t &z);
40 void GetCoorErrors(AliITSclusterV2* cl, Int_t module,Float_t &sx,Float_t &sy, Float_t &sz);
41 virtual ~AliITSclusterTable();
44 Int_t GetNCluster(Int_t mod) const {return fNCl[mod];}
45 Int_t GetClusterIndMod(Int_t mod,Int_t i){return fDet[mod]->At(i);}
46 Int_t ThereIsClusterOnLayer(Int_t label,Int_t layer)
47 {return fLbl[label]->At(layer);}
48 Int_t ThisParticleIsTrackable(Int_t label,Int_t numberofpoints=6);
49 Double_t GetPhiCluster(Int_t layer, Int_t i){return fPhiList[layer]->At(i);}
50 Double_t GetLambdaCluster(Int_t layer, Int_t i) {return fLambdaList[layer]->At(i);}
51 Float_t GetXCluster(Int_t layer, Int_t i){return fXList[layer]->At(i);}
52 Float_t GetYCluster(Int_t layer, Int_t i) {return fYList[layer]->At(i);}
53 Float_t GetZCluster(Int_t layer, Int_t i) {return fZList[layer]->At(i);}
54 Float_t GetXClusterError(Int_t layer, Int_t i) {return fSxList[layer]->At(i);}
55 Float_t GetYClusterError(Int_t layer, Int_t i) {return fSyList[layer]->At(i);}
56 Float_t GetZClusterError(Int_t layer, Int_t i) {return fSzList[layer]->At(i);}
58 TArrayI* GetListOfClusters(Int_t mod) const {return fDet[mod];}
59 TArrayI* GetNClustersSameLabel(Int_t label) const {return fLbl[label];}
60 TArrayD* GetListOfPhi(Int_t layer) const {return fPhiList[layer];}
61 TArrayD* GetListOfLambda(Int_t layer) const {return fLambdaList[layer];}
62 TArrayF* GetListOfX(Int_t layer) const {return fXList[layer];}
63 TArrayF* GetListOfY(Int_t layer) const {return fYList[layer];}
64 TArrayF* GetListOfZ(Int_t layer) const {return fZList[layer];}
65 TArrayF* GetListOfSx(Int_t layer)const {return fSxList[layer];}
66 TArrayF* GetListOfSy(Int_t layer)const {return fSyList[layer];}
67 TArrayF* GetListOfSz(Int_t layer)const {return fSzList[layer];}
70 // copy constructor (NO copy allowed: the constructor is protected
72 AliITSclusterTable(const AliITSclusterTable& tab);
73 // assignment operator (NO assignment allowed)
74 AliITSclusterTable& operator=(const AliITSclusterTable& /* tab */);
76 static Int_t FindIndex(Int_t ndim, Int_t *ptr, Int_t value);
78 Int_t *fNCl; //number of clusters per module
79 Double_t fPrimaryVertex[3]; //primaryVertex
80 TArrayI** fDet; //Array of cluster indices for each detector
81 TArrayI** fLbl; //Array of number of clusters (on each layer)
82 // with the same label for each label.
83 TArrayD** fPhiList; //Array of cluster azimuthal angles on each layer
84 TArrayD** fLambdaList;//Array of cluster Lambda angles on each layer
85 TArrayF** fXList; //Array of cluster x coordinates on each layer
86 TArrayF** fYList; //Array of cluster y coordinates on each layer
87 TArrayF** fZList; // Array of cluster z coordinates on each layer
88 TArrayF** fSxList; //Array of cluster errors on x on each layer
89 TArrayF** fSyList; //Array of cluster errors on y on each layer
90 TArrayF** fSzList; //Array of cluster errors on z on each layer
92 AliITSgeom *fGeom; //! ITS geometry
93 AliITStrackerSA *fTracker; //! SA tracker
95 ClassDef(AliITSclusterTable,1)