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);
42 AliEMCALClusterizerv1(const TString alirunFileNameFile, const TString eventFolderName = AliConfig::GetDefaultEventFolderName());
43 virtual ~AliEMCALClusterizerv1() ;
44 virtual void Browse(TBrowser* b);
46 AliEMCALClusterizerv1 & operator = (const AliEMCALClusterizerv1 &) {
47 Fatal("operator =", "not implemented") ;
51 virtual Int_t AreNeighbours(AliEMCALDigit * d1, AliEMCALDigit * d2)const ;
52 // Checks if digits are in neighbour cells
54 // Checks if digits are in a tower group; for pseudoclusters
55 virtual Int_t AreInGroup(AliEMCALDigit * d1, AliEMCALDigit * d2)const ;
57 virtual Float_t Calibrate(Int_t amp, Int_t cellId) ; // Tranforms Amp to energy
59 virtual void GetNumberOfClustersFound(int numb )const{ numb = fNumberOfECAClusters ;}
60 virtual Float_t GetECAClusteringThreshold()const{ return fECAClusteringThreshold;}
61 virtual Float_t GetECALocalMaxCut()const { return fECALocMaxCut;}
62 virtual Float_t GetECALogWeight()const { return fECAW0;}
63 virtual Float_t GetMinECut()const { return fMinECut;}
65 virtual Float_t GetTimeCut() const { return fTimeCut ; }
66 virtual const char * GetRecPointsBranch() const{ return GetName() ;}
67 virtual Int_t GetRecPointsInRun() const {return fRecPointsInRun ;}
69 void Exec(Option_t *option); // Does the job
71 virtual void Print(Option_t * option)const ;
73 virtual void SetECAClusteringThreshold(Float_t cluth) { fECAClusteringThreshold = cluth ; }
74 virtual void SetMinECut(Float_t mine) { fMinECut = mine; }
75 virtual void SetECALocalMaxCut(Float_t cut) { fECALocMaxCut = cut ; }
76 virtual void SetECALogWeight(Float_t w) { fECAW0 = w ; }
77 virtual void SetTimeCut(Float_t gate) { fTimeCut = gate ;}
78 virtual void SetUnfolding(Bool_t toUnfold = kTRUE ) {fToUnfold = toUnfold ;}
79 static Double_t ShowerShape(Double_t r) ; // Shape of EM shower used in unfolding;
80 //class member function (not object member function)
81 static void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
82 // Chi^2 of the fit. Should be static to be passes to MINUIT
83 virtual const char * Version() const { return "clu-v1" ; }
86 void SaveHists(const char *fn="reco.root"); //*MENU*
87 void PrintRecoInfo(); //*MENU*
88 void DrawLambdasHists(); //*MENU*
91 void WriteRecPoints() ;
92 virtual void MakeClusters(char* opt );
93 virtual void MakeClusters() { Fatal("MakeClusters","not implemented"); }
97 TH1F* fPointE; //histogram of point energy
98 TH1F* fPointL1; //histogram of point L1
99 TH1F* fPointL2; //histogram of point L2
100 TH1F* fPointDis; //histogram of point dispersion
101 TH1F* fPointMult; //histogram of point multiplicity
102 TH1F* fDigitAmp; //histogram of digit ADC Amplitude
103 TH1F* fMaxE; //histogram of maximum point energy
104 TH1F* fMaxL1; //histogram of largest (first) of eigenvalue of covariance matrix
105 TH1F* fMaxL2; //histogram of smalest (second) of eigenvalue of covariace matrix
106 TH1F* fMaxDis; //histogram of point dispersion
107 ///////////////////////
112 const TString BranchName() const ;
113 void GetCalibrationParameters(void) ;
115 Bool_t FindFit(AliEMCALRecPoint * emcRP, AliEMCALDigit ** MaxAt, Float_t * maxAtEnergy,
116 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
118 void InitParameters() ;
120 virtual void MakeUnfolding() const;
121 void UnfoldCluster(AliEMCALRecPoint * /*iniEmc*/, Int_t /*Nmax*/,
122 AliEMCALDigit ** /*maxAt*/,
123 Float_t * /*maxAtEnergy*/ ) const; //Unfolds cluster using TMinuit package
124 void PrintRecPoints(Option_t * option) ;
127 AliEMCALGeometry* fGeom; //! pointer to geometry for utilities
129 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
130 Bool_t fToUnfold ; // To perform unfolding
131 Int_t fNumberOfECAClusters ; // number of clusters found in EC section
133 Int_t fNTowerInGroup; // number of towers to group for pseudoclusters
135 //Calibration parameters... to be replaced by database
137 AliEMCALCalibData * fCalibData ; //! Calibration database if aval
138 Float_t fADCchannelECA ; // width of one ADC channel for EC section (GeV)
139 Float_t fADCpedestalECA ; // pedestal of ADC for EC section (GeV)
141 Float_t fECAClusteringThreshold ; // minimum energy to seed a EC digit in a cluster
142 Float_t fECALocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
143 Float_t fECAW0 ; // logarithmic weight for the cluster center of gravity calculation
144 Int_t fRecPointsInRun ; //! Total number of recpoints in one run
145 Float_t fTimeCut ; // Maximum time difference between the digits in ont EMC cluster
146 Float_t fMinECut; // Minimum energy for a digit to be a member of a cluster
148 ClassDef(AliEMCALClusterizerv1,5) // Clusterizer implementation version 1
152 #endif // AliEMCALCLUSTERIZERV1_H