1 #ifndef ALIITSCLUSTERERV2_H
2 #define ALIITSCLUSTERERV2_H
3 //--------------------------------------------------------------
6 // This can be a "wrapping" for the V1 cluster finding classes
7 // if compiled with uncommented "#define V1" line
8 // in the AliITSclustererV2.cxx file.
10 // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
11 //--------------------------------------------------------------
19 class AliITSclusterV2;
21 class AliITSRawStream;
23 class AliITSclustererV2 : public TObject {
25 AliITSclustererV2(){ fEvent=0; fI=0;}
26 AliITSclustererV2(const AliITSgeom *geom);
28 void SetEvent(Int_t event) { fEvent=event; }
29 Int_t Digits2Clusters(TTree *in, TTree *out);
30 void Digits2Clusters(AliRawReader* rawReader);
31 void FindClustersSPD(const TClonesArray *dig, TClonesArray *cls);
32 void FindClustersSPD(AliITSRawStream* input, TClonesArray** clusters);
33 void FindClustersSDD(const TClonesArray *dig, TClonesArray *cls);
34 void FindClustersSDD(AliITSRawStream* input, TClonesArray** clusters);
35 void FindClustersSSD(const TClonesArray *dig, TClonesArray *cls);
36 void FindClustersSSD(AliITSRawStream* input, TClonesArray** clusters);
38 void RecPoints2Clusters(const TClonesArray *p, Int_t idx, TClonesArray *c);
39 Int_t Hits2Clusters(TTree *in, TTree *out);
44 Float_t fY; //cluster position
45 Float_t fQ; //cluster charge
46 Int_t fNd; //number of digits
47 Int_t fLab[3]; //track label
49 void SetY(Float_t y) {fY=y;}
50 void SetQ(Float_t q) {fQ=q;}
51 void SetNd(Int_t n) {fNd=n;}
52 void SetLabels(Int_t *lab) {fLab[0]=lab[0];fLab[1]=lab[1];fLab[2]=lab[2];}
53 Float_t GetY() const {return fY;}
54 Float_t GetQ() const {return fQ;}
55 Int_t GetNd()const {return fNd;}
56 Int_t GetLabel(Int_t lab) const { return fLab[lab]; }
60 AliBin() {fIndex=0; fQ=0; fMask=0xFFFFFFFE;}
61 void SetIndex(UInt_t idx) {fIndex=idx;}
62 void SetQ(UShort_t q) {fQ=q;}
63 void SetMask(UInt_t m) {fMask=m;}
65 void Use() {fMask&=0xFFFFFFFE;}
66 Bool_t IsNotUsed() const {return (fMask&1);}
67 Bool_t IsUsed() const {return !(IsNotUsed());}
69 UInt_t GetIndex() const {return fIndex;}
70 UShort_t GetQ() const {return fQ;}
71 UInt_t GetMask() const {return fMask;}
73 UInt_t fIndex; //digit index
74 UInt_t fMask; //peak mask
77 static Bool_t IsMaximum(Int_t k, Int_t max, const AliBin *bins);
78 static void FindPeaks(Int_t k,Int_t m,AliBin*b,Int_t*idx,UInt_t*msk,Int_t&n);
79 static void MarkPeak(Int_t k, Int_t max, AliBin *bins, UInt_t m);
80 static void MakeCluster(Int_t k,Int_t max,AliBin *bins,UInt_t m,
82 void FindClustersSDD(AliBin* bins[2], Int_t nMaxBin, Int_t nMaxZ,
83 const TClonesArray *dig, TClonesArray *cls);
84 void FindClustersSSD(Ali1Dcluster* neg, Int_t nn,
85 Ali1Dcluster* pos, Int_t np,
86 TClonesArray *clusters);
89 static void FindCluster(Int_t k,Int_t maxz,AliBin *bins,Int_t &n,Int_t *idx);
92 Int_t fNModules; // total number of modules
95 Int_t fEvent; //event number
97 Int_t fI; //index of the current subdetector
98 Float_t fYshift[2200]; //y-shifts of detector local coor. systems
99 Float_t fZshift[2200]; //z-shifts of detector local coor. systems
100 Int_t fNdet[2200]; //detector index
101 Int_t fNlayer[2200]; //detector layer
103 //SPD related values:
104 Int_t fLastSPD1; //index of the last SPD1 detector
105 Int_t fNySPD; //number of pixels in Y
106 Int_t fNzSPD; //number of pixels in Z
107 Float_t fYpitchSPD; //pixel size in Y
108 Float_t fZ1pitchSPD,fZ2pitchSPD; //pixel sizes in Z
109 Float_t fHwSPD; //half width of the SPD detector
110 Float_t fHlSPD; //half length of the SPD detector
111 Float_t fYSPD[260]; //Y-coordinates of pixel centers
112 Float_t fZSPD[170]; //Z-coordinates of pixel centers
114 //SDD related values:
115 Int_t fNySDD; //number of "pixels" in Y
116 Int_t fNzSDD; //number of "pixels" in Z
117 Float_t fYpitchSDD; //"pixel size" in Y (drift direction)
118 Float_t fZpitchSDD; //"pixel sizes" in Z
119 Float_t fHwSDD; //half width of the SDD detector
120 Float_t fHlSDD; //half length of the SDD detector
121 Float_t fYoffSDD; //some delay in the drift channel
123 //SSD related values:
124 Int_t fLastSSD1; //index of the last SSD1 detector
125 Float_t fYpitchSSD; //strip pitch (cm)
126 Float_t fHwSSD; //half-width of an SSD detector (cm)
127 Float_t fHlSSD; //half-length of an SSD detector (cm)
128 Float_t fTanP; //tangent of the stereo angle on the P side
129 Float_t fTanN; //tangent of the stereo angle on the N side
131 ClassDef(AliITSclustererV2,1) // ITS cluster finder V2