1 #ifndef ALIEMCALCLUSTERIZERV1_H
2 #define ALIEMCALCLUSTERIZERV1_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //_________________________________________________________________________
9 // Implementation version 1 of the clusterization algorithm
10 // Performs clusterization (collects neighbouring active cells) and
11 // unfolding of the clusters with several local maxima.
12 // results are stored in TreeR#, branches PHOSEmcRP (EMC recPoints),
13 // PHOSCpvRP (CPV RecPoints) and AliPHOSClusterizer
15 //*-- Author: Yves Schutz (SUBATECH)
17 // August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction
18 // of new IO (à la PHOS)
20 // --- ROOT system ---
22 // --- Standard library ---
24 // --- AliRoot header files ---
26 #include "AliEMCALClusterizer.h"
28 class AliEMCALRecPoint ;
30 class AliEMCALDigitizer ;
31 class AliEMCALGeometry ;
32 class AliEMCALCalibData ;
34 class AliEMCALClusterizerv1 : public AliEMCALClusterizer {
38 AliEMCALClusterizerv1() ;
39 //cpy ctor required by coding convention
40 AliEMCALClusterizerv1(const AliEMCALClusterizerv1& clus):AliEMCALClusterizer(clus){};
42 AliEMCALClusterizerv1(const TString alirunFileNameFile, const TString eventFolderName = AliConfig::GetDefaultEventFolderName());
43 virtual ~AliEMCALClusterizerv1() ;
44 virtual void Browse(TBrowser* b);
46 virtual Int_t AreNeighbours(AliEMCALDigit * d1, AliEMCALDigit * d2)const ;
47 // Checks if digits are in neighbour cells
49 // Checks if digits are in a tower group; for pseudoclusters
50 virtual Int_t AreInGroup(AliEMCALDigit * d1, AliEMCALDigit * d2)const ;
52 virtual Float_t Calibrate(Int_t amp, Int_t cellId) ; // Tranforms Amp to energy
54 virtual void GetNumberOfClustersFound(int numb )const{ numb = fNumberOfECAClusters ;}
55 virtual Float_t GetECAClusteringThreshold()const{ return fECAClusteringThreshold;}
56 virtual Float_t GetECALocalMaxCut()const { return fECALocMaxCut;}
57 virtual Float_t GetECALogWeight()const { return fECAW0;}
58 virtual Float_t GetMinECut()const { return fMinECut;}
60 virtual Float_t GetTimeGate() const { return fTimeGate ; }
61 virtual const char * GetRecPointsBranch() const{ return GetName() ;}
62 virtual Int_t GetRecPointsInRun() const {return fRecPointsInRun ;}
64 void Exec(Option_t *option); // Does the job
66 virtual void Print(Option_t * option)const ;
68 virtual void SetECAClusteringThreshold(Float_t cluth) { fECAClusteringThreshold = cluth ; }
69 virtual void SetMinECut(Float_t mine) { fMinECut = mine; }
70 virtual void SetECALocalMaxCut(Float_t cut) { fECALocMaxCut = cut ; }
71 virtual void SetECALogWeight(Float_t w) { fECAW0 = w ; }
72 virtual void SetTimeGate(Float_t gate) { fTimeGate = gate ;}
73 virtual void SetUnfolding(Bool_t toUnfold = kTRUE ) {fToUnfold = toUnfold ;}
74 static Double_t ShowerShape(Double_t r) ; // Shape of EM shower used in unfolding;
75 //class member function (not object member function)
76 static void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
77 // Chi^2 of the fit. Should be static to be passes to MINUIT
79 virtual const char * Version() const { return "clu-v1" ; }
82 void SaveHists(const char *fn="reco.root"); //*MENU*
85 void WriteRecPoints() ;
86 virtual void MakeClusters(char* opt ) ;
87 virtual void MakeClusters() { Fatal("MakeClusters","not implemented"); }
91 TH1F* fPointE; //histogram of point energy
92 TH1F* fPointL1; //histogram of point L1
93 TH1F* fPointL2; //histogram of point L2
94 TH1F* fPointDis; //histogram of point dispersion
95 TH1F* fPointMult; //histogram of point multiplicity
96 TH1F* fDigitAmp; //histogram of digit ADC Amplitude
97 TH1F* fMaxE; //histogram of maximum point energy
98 TH1F* fMaxL1; //histogram of maximum point L1
99 TH1F* fMaxL2; //histogram of maximum point L2
100 TH1F* fMaxDis; //histogram of maximum point dispersion
101 ///////////////////////
106 const TString BranchName() const ;
107 void GetCalibrationParameters(void) ;
109 Bool_t FindFit(AliEMCALRecPoint * emcRP, AliEMCALDigit ** MaxAt, Float_t * maxAtEnergy,
110 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
112 void InitParameters() ;
114 virtual void MakeUnfolding() const;
115 void UnfoldCluster(AliEMCALRecPoint * /*iniEmc*/, Int_t /*Nmax*/,
116 AliEMCALDigit ** /*maxAt*/,
117 Float_t * /*maxAtEnergy*/ ) const; //Unfolds cluster using TMinuit package
118 void PrintRecPoints(Option_t * option) ;
121 AliEMCALGeometry* fGeom; //! pointer to geometry for utilities
123 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
124 Bool_t fToUnfold ; // To perform unfolding
125 Int_t fNumberOfECAClusters ; // number of clusters found in EC section
127 Int_t fNTowerInGroup; // number of towers to group for pseudoclusters
129 //Calibration parameters... to be replaced by database
131 AliEMCALCalibData * fCalibData ; //! Calibration database if aval
132 Float_t fADCchannelECA ; // width of one ADC channel for EC section (GeV)
133 Float_t fADCpedestalECA ; // pedestal of ADC for EC section (GeV)
135 Float_t fECAClusteringThreshold ; // minimum energy to seed a EC digit in a cluster
136 Float_t fECALocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
137 Float_t fECAW0 ; // logarithmic weight for the cluster center of gravity calculation
138 Int_t fRecPointsInRun ; //! Total number of recpoints in one run
139 Float_t fTimeGate ; // Maximum time difference between the digits in ont EMC cluster
140 Float_t fMinECut; // Minimum energy for a digit to be a member of a cluster
142 ClassDef(AliEMCALClusterizerv1,4) // Clusterizer implementation version 1
146 #endif // AliEMCALCLUSTERIZERV1_H