1 #ifndef ALIITSCLUSTERFINDER_H
2 #define ALIITSCLUSTERFINDER_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
9 ////////////////////////////////////////////////
10 // ITS Cluster Finder Class //
13 ////////////////////////////////////////////////
16 #include <TClonesArray.h>
21 class AliITSsegmentation;
24 class AliITSDetTypeRec;
30 //----------------------------------------------------------------------
31 class AliITSClusterFinder :public TObject{
33 AliITSClusterFinder(); // Default constructor
34 // Standard Constructor
35 AliITSClusterFinder(AliITSDetTypeRec* dettyp);
36 AliITSClusterFinder(AliITSDetTypeRec* dettyp,TClonesArray *digits);// Standard+ Constructor
37 virtual ~AliITSClusterFinder(); // Destructor
39 // Do the Reconstruction.
40 virtual void FindRawClusters(Int_t /*mod*/)=0; // Finds cluster of digits.
41 virtual void RawdataToClusters(AliRawReader* /*rawReader*/) {
42 AliError("Method not implemented in this class ");
46 virtual void SetDigits(TClonesArray *itsDigits) {// set digits
47 fDigits=itsDigits;fNdigits = fDigits->GetEntriesFast();}
48 virtual AliITSdigit* GetDigit(Int_t i){ // Returns ith digit
49 return (AliITSdigit*) fDigits->UncheckedAt(i);}
50 virtual TClonesArray* Digits(){return fDigits;}// Gets fDigits
51 virtual Int_t NDigits() const {return fNdigits;}// Get Number of Digits
54 virtual void SetClusters(TClonesArray *itsClusters){// set clusters
55 fClusters = itsClusters;}
57 virtual TClonesArray* Clusters(){return fClusters;}
58 // Returns the present number of enteries
59 virtual Int_t NClusters()const {return fClusters->GetEntriesFast();}
61 virtual void SetModule(Int_t module){fModule = module;}// Set module number
62 virtual Int_t GetModule()const {return fModule;}// Returns module number
64 void SetEvent(Int_t event) { fEvent=event; }
67 virtual void SetMap(AliITSMap *m) {fMap=m;}// map
68 AliITSMap* Map(){return fMap;}// map
69 virtual Int_t GetNPeaks() const {return fNPeaks;}// returns fNPeaks
71 virtual Bool_t IsNeighbor(TObjArray *digs,Int_t i,Int_t j[]) const;
72 // Set max. cluster size ; bigger clusters will be rejected
75 void Print(ostream *os) const; // Class ascii print function
76 void Read(istream *os); // Class ascii read function
77 virtual void Print(Option_t *option="") const {TObject::Print(option);}
78 virtual Int_t Read(const char *name) {return TObject::Read(name);}
80 virtual void SetDetTypeRec(AliITSDetTypeRec* dtr) {fDetTypeRec=dtr;}
81 AliITSDetTypeRec* GetDetTypeRec() const {return fDetTypeRec;}
85 Int_t GetNClusters() const {return fNClusters;}
86 void SetRawID2ClusID(TArrayI *arr) {fRawID2ClusID = arr;}
87 TArrayI* GetRawID2ClusID() const {return fRawID2ClusID;}
92 void SetY(Float_t y) {fY=y;}
93 void SetQ(Float_t q) {fQ=q;}
94 void SetNd(Int_t n) {fNd=n;}
95 void SetLabels(Int_t *lab) {fLab[0]=lab[0];fLab[1]=lab[1];fLab[2]=lab[2];}
96 Float_t GetY() const {return fY;}
97 Float_t GetQ() const {return fQ;}
98 Int_t GetNd()const {return fNd;}
99 Int_t GetLabel(Int_t lab) const { return fLab[lab]; }
101 Float_t fY; //cluster position
102 Float_t fQ; //cluster charge
103 Int_t fNd; //number of digits
104 Int_t fLab[3]; //track label
108 AliBin():fIndex(0),fMask(0xFFFFFFFE),fRawID(-1),fQ(0){}
109 void SetIndex(UInt_t idx) {fIndex=idx;}
110 void SetQ(UShort_t q) {fQ=q;}
111 void SetMask(UInt_t m) {fMask=m;}
112 void SetRawID(Int_t id) {fRawID=id;}
113 void Reset() {fIndex=0; fMask=0xFFFFFFFE; fQ=0; fRawID=-1;}
115 void Use() {fMask&=0xFFFFFFFE;}
116 Bool_t IsNotUsed() const {return (fMask&1);}
117 Bool_t IsUsed() const {return !(IsNotUsed());}
119 UInt_t GetIndex() const {return fIndex;}
120 UShort_t GetQ() const {return fQ;}
121 UInt_t GetMask() const {return fMask;}
122 Int_t GetRawID() const {return fRawID;}
124 UInt_t fIndex; //digit index
125 UInt_t fMask; //peak mask
126 Int_t fRawID; // ID of raw word (used for embedding)
127 UShort_t fQ; //signal
129 void MakeCluster(Int_t k,Int_t max,AliBin *bins,UInt_t m,AliITSRecPoint &c);
130 static Bool_t IsMaximum(Int_t k, Int_t max, const AliBin *bins);
131 static void FindPeaks(Int_t k,Int_t m,AliBin*b,Int_t*idx,UInt_t*msk,Int_t&n);
132 static void MarkPeak(Int_t k, Int_t max, AliBin *bins, UInt_t m);
133 static void FindCluster(Int_t k,Int_t maxz,AliBin *bins,Int_t &n,Int_t *idx);
135 static void CheckLabels2(Int_t lab[10]);
136 static void AddLabel(Int_t lab[10], Int_t label);
140 Int_t fModule; //! Module number to be reconstuctted
141 TClonesArray *fDigits; //! digits
142 Int_t fNdigits; //! num of digits
144 AliITSDetTypeRec* fDetTypeRec; //ITS object for reconstruction
145 TClonesArray *fClusters; //! Array of clusters
146 AliITSMap *fMap; //! map
147 Int_t fNPeaks; //! NPeaks
148 // Data members needed to fill AliCluster objects
149 Int_t fNdet[2200]; // detector index
150 Int_t fNlayer[2200]; // detector layer
152 Int_t fNModules; // total number of modules
153 Int_t fEvent; //event number
154 Int_t fZmin; // minimum channel in Zloc
155 Int_t fZmax; // maximum channel in Zloc
156 Int_t fXmin; // minimum channel in Xloc
157 Int_t fXmax; // maximum channel in Xloc
159 UInt_t fNClusters; // total number of clusters found
161 TArrayI* fRawID2ClusID; //! optional array to store raw word ID -> ClusID for embedding (not owned)
163 AliITSClusterFinder(const AliITSClusterFinder &source); // copy constructor
164 // assignment operator
165 AliITSClusterFinder& operator=(const AliITSClusterFinder &source);
168 ClassDef(AliITSClusterFinder,11) //Class for clustering and reconstruction of space points
170 // Input and output functions for standard C++ input/output.
171 ostream &operator<<(ostream &os,AliITSClusterFinder &source);
172 istream &operator>>(istream &os,AliITSClusterFinder &source);