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 GetTimeGate() const { return fTimeGate ; }
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 SetTimeGate(Float_t gate) { fTimeGate = 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
84 virtual const char * Version() const { return "clu-v1" ; }
87 void SaveHists(const char *fn="reco.root"); //*MENU*
88 void PrintRecoInfo(); //*MENU*
89 void DrawLambdasHists(); //*MENU*
92 void WriteRecPoints() ;
93 virtual void MakeClusters(char* opt ) ;
94 virtual void MakeClusters() { Fatal("MakeClusters","not implemented"); }
98 TH1F* fPointE; //histogram of point energy
99 TH1F* fPointL1; //histogram of point L1
100 TH1F* fPointL2; //histogram of point L2
101 TH1F* fPointDis; //histogram of point dispersion
102 TH1F* fPointMult; //histogram of point multiplicity
103 TH1F* fDigitAmp; //histogram of digit ADC Amplitude
104 TH1F* fMaxE; //histogram of maximum point energy
105 TH1F* fMaxL1; //histogram of largest (first) of eigenvalue of covariance matrix
106 TH1F* fMaxL2; //histogram of smalest (second) of eigenvalue of covariace matrix
107 TH1F* fMaxDis; //histogram of point dispersion
108 ///////////////////////
113 const TString BranchName() const ;
114 void GetCalibrationParameters(void) ;
116 Bool_t FindFit(AliEMCALRecPoint * emcRP, AliEMCALDigit ** MaxAt, Float_t * maxAtEnergy,
117 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
119 void InitParameters() ;
121 virtual void MakeUnfolding() const;
122 void UnfoldCluster(AliEMCALRecPoint * /*iniEmc*/, Int_t /*Nmax*/,
123 AliEMCALDigit ** /*maxAt*/,
124 Float_t * /*maxAtEnergy*/ ) const; //Unfolds cluster using TMinuit package
125 void PrintRecPoints(Option_t * option) ;
128 AliEMCALGeometry* fGeom; //! pointer to geometry for utilities
130 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
131 Bool_t fToUnfold ; // To perform unfolding
132 Int_t fNumberOfECAClusters ; // number of clusters found in EC section
134 Int_t fNTowerInGroup; // number of towers to group for pseudoclusters
136 //Calibration parameters... to be replaced by database
138 AliEMCALCalibData * fCalibData ; //! Calibration database if aval
139 Float_t fADCchannelECA ; // width of one ADC channel for EC section (GeV)
140 Float_t fADCpedestalECA ; // pedestal of ADC for EC section (GeV)
142 Float_t fECAClusteringThreshold ; // minimum energy to seed a EC digit in a cluster
143 Float_t fECALocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
144 Float_t fECAW0 ; // logarithmic weight for the cluster center of gravity calculation
145 Int_t fRecPointsInRun ; //! Total number of recpoints in one run
146 Float_t fTimeGate ; // Maximum time difference between the digits in ont EMC cluster
147 Float_t fMinECut; // Minimum energy for a digit to be a member of a cluster
149 ClassDef(AliEMCALClusterizerv1,4) // Clusterizer implementation version 1
153 #endif // AliEMCALCLUSTERIZERV1_H