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 AliEMCALClusterizerv1(const TString alirunFileNameFile, const TString eventFolderName = AliConfig::GetDefaultEventFolderName());
40 virtual ~AliEMCALClusterizerv1() ;
41 virtual void Browse(TBrowser* b);
43 virtual Int_t AreNeighbours(AliEMCALDigit * d1, AliEMCALDigit * d2)const ;
44 // Checks if digits are in neighbour cells
46 // Checks if digits are in a tower group; for pseudoclusters
47 virtual Int_t AreInGroup(AliEMCALDigit * d1, AliEMCALDigit * d2)const ;
49 virtual Float_t Calibrate(Int_t amp, Int_t cellId) ; // Tranforms Amp to energy
51 virtual void GetNumberOfClustersFound(int numb )const{ numb = fNumberOfECAClusters ;}
52 virtual Float_t GetECAClusteringThreshold()const{ return fECAClusteringThreshold;}
53 virtual Float_t GetECALocalMaxCut()const { return fECALocMaxCut;}
54 virtual Float_t GetECALogWeight()const { return fECAW0;}
55 virtual Float_t GetMinECut()const { return fMinECut;}
57 virtual Float_t GetTimeGate() const { return fTimeGate ; }
58 virtual const char * GetRecPointsBranch() const{ return GetName() ;}
59 virtual Int_t GetRecPointsInRun() const {return fRecPointsInRun ;}
61 void Exec(Option_t *option); // Does the job
63 virtual void Print(Option_t * option)const ;
65 virtual void SetECAClusteringThreshold(Float_t cluth) { fECAClusteringThreshold = cluth ; }
66 virtual void SetMinECut(Float_t mine) { fMinECut = mine; }
67 virtual void SetECALocalMaxCut(Float_t cut) { fECALocMaxCut = cut ; }
68 virtual void SetECALogWeight(Float_t w) { fECAW0 = w ; }
69 virtual void SetTimeGate(Float_t gate) { fTimeGate = gate ;}
70 virtual void SetUnfolding(Bool_t toUnfold = kTRUE ) {fToUnfold = toUnfold ;}
71 static Double_t ShowerShape(Double_t r) ; // Shape of EM shower used in unfolding;
72 //class member function (not object member function)
73 static void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
74 // Chi^2 of the fit. Should be static to be passes to MINUIT
76 virtual const char * Version() const { return "clu-v1" ; }
79 void SaveHists(const char *fn="reco.root"); //*MENU*
82 void WriteRecPoints() ;
83 virtual void MakeClusters(char* opt ) ;
84 virtual void MakeClusters() { Fatal("MakeClusters","not implemented"); }
98 ///////////////////////
103 const TString BranchName() const ;
104 void GetCalibrationParameters(void) ;
106 Bool_t FindFit(AliEMCALRecPoint * emcRP, AliEMCALDigit ** MaxAt, Float_t * maxAtEnergy,
107 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
109 void InitParameters() ;
111 virtual void MakeUnfolding() const;
112 void UnfoldCluster(AliEMCALRecPoint * /*iniEmc*/, Int_t /*Nmax*/,
113 AliEMCALDigit ** /*maxAt*/,
114 Float_t * /*maxAtEnergy*/ ) const; //Unfolds cluster using TMinuit package
115 void PrintRecPoints(Option_t * option) ;
118 AliEMCALGeometry* fGeom; //! pointer to geometry for utilities
120 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
121 Bool_t fToUnfold ; // To perform unfolding
122 Int_t fNumberOfECAClusters ; // number of clusters found in EC section
124 Int_t fNTowerInGroup; // number of towers to group for pseudoclusters
126 //Calibration parameters... to be replaced by database
128 AliEMCALCalibData * fCalibData ; //! Calibration database if aval
129 Float_t fADCchannelECA ; // width of one ADC channel for EC section (GeV)
130 Float_t fADCpedestalECA ; // pedestal of ADC for EC section (GeV)
132 Float_t fECAClusteringThreshold ; // minimum energy to seed a EC digit in a cluster
133 Float_t fECALocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
134 Float_t fECAW0 ; // logarithmic weight for the 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
137 Float_t fMinECut; // Minimum energy for a digit to be a member of a cluster
139 ClassDef(AliEMCALClusterizerv1,4) // Clusterizer implementation version 1
143 #endif // AliEMCALCLUSTERIZERV1_H