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 char * headerFile, const char * name = "Default", const Bool_t toSplit=kFALSE);
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] = fNumberOfECClusters ;
48 numb[2] = fNumberOfHCClusters ; }
50 virtual Float_t GetPREClusteringThreshold()const{ return fPREClusteringThreshold; }
51 virtual Float_t GetECClusteringThreshold()const{ return fECClusteringThreshold;}
52 virtual Float_t GetHCClusteringThreshold()const{ return fHCClusteringThreshold;}
54 virtual Float_t GetPRELocalMaxCut()const { return fPRELocMaxCut;}
55 virtual Float_t GetPREShoLogWeight()const { return fPREW0;}
56 virtual Float_t GetECLocalMaxCut()const { return fECLocMaxCut;}
57 virtual Float_t GetECLogWeight()const { return fECW0;}
58 virtual Float_t GetHCLocalMaxCut()const { return fHCLocMaxCut;}
59 virtual Float_t GetHCLogWeight()const { return fHCW0;}
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 SetECClusteringThreshold(Float_t cluth) { fECClusteringThreshold = cluth ; }
70 virtual void SetECLocalMaxCut(Float_t cut) { fECLocMaxCut = cut ; }
71 virtual void SetECLogWeight(Float_t w) { fECW0 = w ; }
72 virtual void SetHCClusteringThreshold(Float_t cluth) { fHCClusteringThreshold = cluth ; }
73 virtual void SetHCLocalMaxCut(Float_t cut) { fHCLocMaxCut = cut ; }
74 virtual void SetHCLogWeight(Float_t w) { fHCW0 = 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
84 virtual const char * Version() const { return "clu-v1" ; }
88 void WriteRecPoints(Int_t event) ;
89 virtual void MakeClusters( ) ;
93 const TString BranchName() const ;
94 void GetCalibrationParameters(void) ;
96 Bool_t FindFit(AliEMCALTowerRecPoint * emcRP, AliEMCALDigit ** MaxAt, Float_t * maxAtEnergy,
97 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
99 void InitParameters() ;
101 virtual void MakeUnfolding() ;
102 void UnfoldCluster(AliEMCALTowerRecPoint * iniEmc,Int_t Nmax,
103 AliEMCALDigit ** maxAt,Float_t * maxAtEnergy ) ; //Unfolds cluster using TMinuit package
104 void PrintRecPoints(Option_t * option) ;
108 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
110 Int_t fNTowers ; // number of Towers in EMCAL
112 Bool_t fToUnfold ; // To perform unfolding
114 Int_t fNumberOfPREClusters ; // number of clusters found in PRE section
115 Int_t fNumberOfECClusters ; // number of clusters found in EC section
116 Int_t fNumberOfHCClusters ; // number of clusters found in HC section
118 //Calibration parameters... to be replaced by database
119 Float_t fADCchannelPRE ; // width of one ADC channel for PRE section (GeV)
120 Float_t fADCpedestalPRE ; // pedestal of ADC for PRE section (GeV)
121 Float_t fADCchannelEC ; // width of one ADC channel for EC section (GeV)
122 Float_t fADCpedestalEC ; // pedestal of ADC for EC section (GeV)
123 Float_t fADCchannelHC ; // width of one ADC channel for HC section (GeV)
124 Float_t fADCpedestalHC ; // pedestal of ADC for HC section (GeV)
126 Float_t fECClusteringThreshold ; // minimum energy to include a EC digit in a cluster
127 Float_t fHCClusteringThreshold ; // minimum energy to include a HC digit in a cluster
128 Float_t fPREClusteringThreshold ; // minimum energy to include a PRE digit in a cluster
129 Float_t fECLocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
130 Float_t fECW0 ; // logarithmic weight for the cluster center of gravity calculation
131 Float_t fHCLocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
132 Float_t fHCW0 ; // logarithmic weight for the cluster center of gravity calculation
133 Float_t fPRELocMaxCut ; // minimum energy difference to distinguish local maxima in a CPV cluster
134 Float_t fPREW0 ; // logarithmic weight for the CPV cluster center of gravity calculation
135 Int_t fRecPointsInRun ; //! Total number of recpoints in one run
136 Float_t fTimeGate ; // Maximum time difference between the digits in ont EMC cluster
138 ClassDef(AliEMCALClusterizerv1,2) // Clusterizer implementation version 1
142 #endif // AliEMCALCLUSTERIZERV1_H