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Cluster finding improved.
[u/mrichter/AliRoot.git] / HMPID / AliHMPIDCluster.h
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1#ifndef AliHMPIDCluster_h
2#define AliHMPIDCluster_h
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6#include "AliHMPIDDigit.h" //DigAdd()
7#include <TObjArray.h> //DigAdd()
8class TClonesArray; //Solve()
9
10class AliHMPIDCluster :public TObject
11{
12public:
13 enum EClusterStatus {kFrm,kCoG,kLo1,kUnf,kMax,kAbn,kNot,kEdg,kSi1,kNoLoc,kEmp=-1}; //status flags
14 AliHMPIDCluster():TObject( ),fCh(-1),fSi(-1),fSt(kEmp),fBox(-1),fNlocMax(-1),fMaxQpad(-1),fMaxQ(-1),fQ(-1),fQi(-1),fQe(-1),fX(-1),fXi(-1),fXe(-1),fY(-1),fYi(-1),fYe(-1),fChi2(-1),fDigs(0) {} //empty ctor
15
16
17 AliHMPIDCluster (const AliHMPIDCluster &c):TObject(c),fCh(c.fCh),fSi(c.fSi),fSt(c.fSt),fBox(c.fBox),fNlocMax(c.fNlocMax),fMaxQpad(c.fMaxQpad),fMaxQ(c.fMaxQ),
18 fQ (c.fQ ),fQi(c.fQi),fQe(c.fQe),
19 fX (c.fX ),fXi(c.fXi),fXe(c.fXe),
20 fY (c.fY ),fYi(c.fYi),fYe(c.fYe),fChi2(c.fChi2),fDigs(0) {}//copy ctor
21 AliHMPIDCluster &operator=(const AliHMPIDCluster &c) {if(this == &c)return *this;TObject::operator=(c);
22 fSi=c.fSi; fSt=c.fSt; fCh=c.fCh; fBox=c.fBox;fNlocMax=c.fNlocMax;fMaxQpad=c.fMaxQpad; fMaxQ=c.fMaxQ;
23 fQ=c.fQ; fQi=c.fQi;fQe=c.fQe;
24 fX=c.fX; fXi=c.fXi;fXe=c.fXe;
25 fY=c.fY; fYi=c.fYi;fYe=c.fYe; fChi2=c.fChi2;fDigs=c.fDigs ? new TObjArray(*c.fDigs):0; return *this;}
26
27 virtual ~AliHMPIDCluster( ) {if(fDigs) delete fDigs; fDigs=0;}
28//framework part
29 void Draw (Option_t *opt="" ); //overloaded TObject::Print() to draw cluster in current canvas
30 void Print (Option_t *opt="" )const; //overloaded TObject::Print() to print cluster info
31 static void FitFunc(Int_t &, Double_t *, Double_t &, Double_t *, Int_t); //fit function to be used by MINUIT
32//private part
33 void CoG ( ); //calculates center of gravity
34 void CorrSin ( ); //sinoidal correction
35 Int_t Ch ( )const{return fCh; } //chamber number
36 inline void DigAdd (AliHMPIDDigit *pDig ); //add new digit ot the cluster
37 AliHMPIDDigit* Dig (Int_t i )const{return (AliHMPIDDigit*)fDigs->At(i); } //pointer to i-th digi
38 inline Bool_t IsInPc (); //check if is in the current PC
39 inline void Reset ( ); //cleans the cluster
40 Int_t Size ( )const{return fSi; } //returns number of pads in formed cluster
41 Int_t Solve (TClonesArray *pCluLst,Bool_t isUnfold ); //solve cluster: MINUIT fit or CoG
42 Int_t Status ( ) const{return fSt;} //Status of cluster
43 Double_t Q ( )const{return fQ; } //cluster charge in QDC channels
44 Double_t Qi ( )const{return fQi; } //cluster charge in QDC channels
45 Double_t Qe ( )const{return fQe; } //cluster charge in QDC channels
46 Double_t X ( )const{return fX; } //cluster x position in LRS
47 Double_t Xi ( )const{return fXi; } //cluster charge in QDC channels
48 Double_t Xe ( )const{return fXe; } //cluster charge in QDC channels
49 Double_t Y ( )const{return fY; } //cluster y position in LRS
50 Double_t Yi ( )const{return fYi; } //cluster charge in QDC channels
51 Double_t Ye ( )const{return fYe; } //cluster charge in QDC channels
52 Double_t Chi2 ( )const{return fChi2; }
53protected:
54 Int_t fCh; //chamber number
55 Int_t fSi; //size of the formed cluster from which this cluster deduced
56 Int_t fSt; //flag to mark the quality of the cluster
57 Int_t fBox; //box contaning this cluster
58 Int_t fNlocMax; //number of local maxima in formed cluster
59 Int_t fMaxQpad; //abs pad number of a pad with the highest charge
60 Double_t fMaxQ; //that max charge value
61 Double_t fQ; //QDC value
62 Double_t fQi; //initial Q of local maximum
63 Double_t fQe; //error on Q
64 Double_t fX; //local x postion, [cm]
65 Double_t fXi; //initial x of local maximum, [cm]
66 Double_t fXe; //error on x postion, [cm]
67 Double_t fY; //local y postion, [cm]
68 Double_t fYi; //initial y of local maximum, [cm]
69 Double_t fYe; //error on y postion, [cm]
70 Double_t fChi2; //some estimatore of fit quality
71 TObjArray *fDigs; //! list of digits forming this cluster
72 ClassDef(AliHMPIDCluster,5) //HMPID cluster class
73};//class AliHMPIDCluster
74
75typedef AliHMPIDCluster AliRICHCluster; // for backward compatibility
76
77//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
78void AliHMPIDCluster::DigAdd(AliHMPIDDigit *pDig)
79{
80// Adds a given digit to the list of digits belonging to this cluster, cluster is not owner of digits
81// Arguments: pDig - pointer to digit to be added
82// Returns: none
83 if(!fDigs) {fSi=0;fDigs = new TObjArray;} //create list of digits in the first invocation
84 fDigs->Add(pDig);
85 fSt=kFrm;
86 fSi++;
87}
88//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
89void AliHMPIDCluster::Reset()
90{
91 if(fDigs) delete fDigs;
92 fDigs=0;
93 fQ=fCh=fSi=-1;fX=fY=-1;fSt=kEmp;
94}
95//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
96Bool_t AliHMPIDCluster::IsInPc()
97{
98 Int_t pc = ((AliHMPIDDigit*)fDigs->At(0))->Pc();
99
100
101 if ( fX < AliHMPIDDigit::fMinPcX[pc] || fX > AliHMPIDDigit::fMaxPcX[pc] ||
102 fY < AliHMPIDDigit::fMinPcY[pc] || fY > AliHMPIDDigit::fMaxPcY[pc] ) return kFALSE;
103
104 return kTRUE;
105
106}
107
108#endif