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"
27 class AliEMCALTowerRecPoint ;
29 class AliEMCALDigitizer ;
30 class AliEMCALGeometry ;
33 class AliEMCALClusterizerv1 : public AliEMCALClusterizer {
37 AliEMCALClusterizerv1() ;
38 AliEMCALClusterizerv1(const TString alirunFileNameFile, const TString eventFolderName = AliConfig::fgkDefaultEventFolderName);
39 virtual ~AliEMCALClusterizerv1() ;
41 virtual Int_t AreNeighbours(AliEMCALDigit * d1, AliEMCALDigit * d2)const ;
42 // Checks if digits are in neighbour cells
44 virtual Float_t Calibrate(Int_t amp, Int_t where)const ; // Tranforms Amp to energy
46 virtual void GetNumberOfClustersFound(int * numb )const{ numb[0] = fNumberOfPREClusters ;
47 numb[1] = fNumberOfECAClusters ;
48 numb[2] = fNumberOfHCAClusters ; }
50 virtual Float_t GetPREClusteringThreshold()const{ return fPREClusteringThreshold; }
51 virtual Float_t GetECAClusteringThreshold()const{ return fECAClusteringThreshold;}
52 virtual Float_t GetHCAClusteringThreshold()const{ return fHCAClusteringThreshold;}
54 virtual Float_t GetPRELocalMaxCut()const { return fPRELocMaxCut;}
55 virtual Float_t GetPREShoLogWeight()const { return fPREW0;}
56 virtual Float_t GetECALocalMaxCut()const { return fECALocMaxCut;}
57 virtual Float_t GetECALogWeight()const { return fECAW0;}
58 virtual Float_t GetHCALocalMaxCut()const { return fHCALocMaxCut;}
59 virtual Float_t GetHCALogWeight()const { return fHCAW0;}
61 virtual Float_t GetTimeGate() const { return fTimeGate ; }
62 virtual const char * GetRecPointsBranch() const{ return GetName() ;}
63 virtual const Int_t GetRecPointsInRun() const {return fRecPointsInRun ;}
65 void Exec(Option_t *option); // Does the job
67 virtual void Print(Option_t * option)const ;
69 virtual void SetECAClusteringThreshold(Float_t cluth) { fECAClusteringThreshold = cluth ; }
70 virtual void SetECALocalMaxCut(Float_t cut) { fECALocMaxCut = cut ; }
71 virtual void SetECALogWeight(Float_t w) { fECAW0 = w ; }
72 virtual void SetHCAClusteringThreshold(Float_t cluth) { fHCAClusteringThreshold = cluth ; }
73 virtual void SetHCALocalMaxCut(Float_t cut) { fHCALocMaxCut = cut ; }
74 virtual void SetHCALogWeight(Float_t w) { fHCAW0 = w ; }
75 virtual void SetTimeGate(Float_t gate) { fTimeGate = gate ;}
76 virtual void SetPREClusteringThreshold(Float_t cluth) { fPREClusteringThreshold = cluth ; }
77 virtual void SetPRELocalMaxCut(Float_t cut) { fPRELocMaxCut = cut ; }
78 virtual void SetPRELogWeight(Float_t w) { fPREW0 = w ; }
79 virtual void SetUnfolding(Bool_t toUnfold = kTRUE ) {fToUnfold = toUnfold ;}
80 static Double_t ShowerShape(Double_t r) ; // Shape of EM shower used in unfolding;
81 //class member function (not object member function)
82 static void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
83 // Chi^2 of the fit. Should be static to be passes to MINUIT
85 virtual const char * Version() const { return "clu-v1" ; }
89 void WriteRecPoints() ;
90 virtual void MakeClusters( ) ;
94 const TString BranchName() const ;
95 void GetCalibrationParameters(void) ;
97 Bool_t FindFit(AliEMCALTowerRecPoint * emcRP, AliEMCALDigit ** MaxAt, Float_t * maxAtEnergy,
98 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
100 void InitParameters() ;
102 virtual void MakeUnfolding() ;
103 void UnfoldCluster(AliEMCALTowerRecPoint * /*iniEmc*/, Int_t /*Nmax*/,
104 AliEMCALDigit ** /*maxAt*/,
105 Float_t * /*maxAtEnergy*/ ) ; //Unfolds cluster using TMinuit package
106 void PrintRecPoints(Option_t * /*option*/) ;
110 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
112 Int_t fNTowers ; // number of Towers in EMCAL
114 Bool_t fToUnfold ; // To perform unfolding
116 Int_t fNumberOfPREClusters ; // number of clusters found in PRE section
117 Int_t fNumberOfECAClusters ; // number of clusters found in EC section
118 Int_t fNumberOfHCAClusters ; // number of clusters found in HC section
120 //Calibration parameters... to be replaced by database
121 Float_t fADCchannelPRE ; // width of one ADC channel for PRE section (GeV)
122 Float_t fADCpedestalPRE ; // pedestal of ADC for PRE section (GeV)
123 Float_t fADCchannelECA ; // width of one ADC channel for EC section (GeV)
124 Float_t fADCpedestalECA ; // pedestal of ADC for EC section (GeV)
125 Float_t fADCchannelHCA ; // width of one ADC channel for HC section (GeV)
126 Float_t fADCpedestalHCA ; // pedestal of ADC for HC section (GeV)
128 Float_t fECAClusteringThreshold ; // minimum energy to include a EC digit in a cluster
129 Float_t fHCAClusteringThreshold ; // minimum energy to include a HC digit in a cluster
130 Float_t fPREClusteringThreshold ; // minimum energy to include a PRE digit in a cluster
131 Float_t fECALocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
132 Float_t fECAW0 ; // logarithmic weight for the cluster center of gravity calculation
133 Float_t fHCALocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
134 Float_t fHCAW0 ; // logarithmic weight for the cluster center of gravity calculation
135 Float_t fPRELocMaxCut ; // minimum energy difference to distinguish local maxima in a CPV cluster
136 Float_t fPREW0 ; // logarithmic weight for the CPV cluster center of gravity calculation
137 Int_t fRecPointsInRun ; //! Total number of recpoints in one run
138 Float_t fTimeGate ; // Maximum time difference between the digits in ont EMC cluster
140 ClassDef(AliEMCALClusterizerv1,2) // Clusterizer implementation version 1
144 #endif // AliEMCALCLUSTERIZERV1_H