1 #ifndef ALIPHOSCLUSTERIZERV1_H
2 #define ALIPHOSCLUSTERIZERV1_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 // --- ROOT system ---
19 // --- Standard library ---
21 // --- AliRoot header files ---
23 #include "AliPHOSClusterizer.h"
24 class AliPHOSEmcRecPoint ;
26 class AliPHOSDigitizer ;
27 class AliPHOSGeometry ;
28 class AliPHOSCalibrationDB ;
30 class AliPHOSClusterizerv1 : public AliPHOSClusterizer {
34 AliPHOSClusterizerv1() ;
35 AliPHOSClusterizerv1(const TString alirunFileNameFile, const TString eventFolderName = AliConfig::fgkDefaultEventFolderName);
36 AliPHOSClusterizerv1(const AliPHOSClusterizerv1 & clu) : AliPHOSClusterizer(clu) {
37 // cpy ctor: no implementation yet
38 // requested by the Coding Convention
39 Fatal("cpy ctor", "not implemented") ;
41 virtual ~AliPHOSClusterizerv1() ;
43 virtual Int_t AreNeighbours(AliPHOSDigit * d1, AliPHOSDigit * d2)const ;
44 // Checks if digits are in neighbour cells
46 virtual Float_t Calibrate(Int_t amp, Int_t absId)const ; // Tranforms Amp to energy
48 virtual void GetNumberOfClustersFound(int * numb )const{ numb[0] = fNumberOfEmcClusters ;
49 numb[1] = fNumberOfCpvClusters ; }
51 virtual Float_t GetEmcClusteringThreshold()const{ return fEmcClusteringThreshold;}
52 virtual Float_t GetEmcLocalMaxCut()const { return fEmcLocMaxCut;}
53 virtual Float_t GetEmcLogWeight()const { return fW0;}
54 virtual Float_t GetEmcTimeGate() const { return fEmcTimeGate ; }
55 virtual Float_t GetCpvClusteringThreshold()const{ return fCpvClusteringThreshold; }
56 virtual Float_t GetCpvLocalMaxCut()const { return fCpvLocMaxCut;}
57 virtual Float_t GetCpvLogWeight()const { return fW0CPV;}
58 virtual const char * GetRecPointsBranch() const{ return GetName() ;}
59 virtual const Int_t GetRecPointsInRun() const {return fRecPointsInRun ;}
61 virtual void Exec(Option_t *option); // Does the job
65 virtual void SetEmcClusteringThreshold(Float_t cluth) { fEmcClusteringThreshold = cluth ; }
66 virtual void SetEmcLocalMaxCut(Float_t cut) { fEmcLocMaxCut = cut ; }
67 virtual void SetEmcLogWeight(Float_t w) { fW0 = w ; }
68 virtual void SetEmcTimeGate(Float_t gate) { fEmcTimeGate = gate ;}
69 virtual void SetCpvClusteringThreshold(Float_t cluth) { fCpvClusteringThreshold = cluth ; }
70 virtual void SetCpvLocalMaxCut(Float_t cut) { fCpvLocMaxCut = cut ; }
71 virtual void SetCpvLogWeight(Float_t w) { fW0CPV = w ; }
72 virtual void SetUnfolding(Bool_t toUnfold = kTRUE ) { fToUnfold = toUnfold ;}
73 static Double_t ShowerShape(Double_t r) ; // Shape of EM shower used in unfolding;
74 //class member function (not object member function)
75 static void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
76 // Chi^2 of the fit. Should be static to be passes to MINUIT
78 virtual const char * Version() const { return "clu-v1"; }
82 void WriteRecPoints() ;
83 virtual void MakeClusters( ) ;
84 virtual Bool_t IsInEmc (AliPHOSDigit * digit)const ; // Tells if id digit is in EMC
85 virtual Bool_t IsInCpv (AliPHOSDigit * digit)const ; // Tells if id digit is in CPV
90 const TString BranchName() const ;
91 void GetCalibrationParameters(void) ;
93 Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, AliPHOSDigit ** MaxAt, Float_t * maxAtEnergy,
94 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
96 void InitParameters() ;
98 virtual void MakeUnfolding() ;
99 void UnfoldCluster(AliPHOSEmcRecPoint * iniEmc,Int_t Nmax,
100 AliPHOSDigit ** maxAt,Float_t * maxAtEnergy ) ; //Unfolds cluster using TMinuit package
101 void PrintRecPoints(Option_t * option) ;
105 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
107 Int_t fEmcCrystals ; // number of EMC cristalls in PHOS
109 Bool_t fToUnfold ; // To perform unfolding
111 Int_t fNumberOfEmcClusters ; // number of EMC clusters found
112 Int_t fNumberOfCpvClusters ; // number of CPV clusters found
114 //Calibration parameters
115 AliPHOSCalibrationDB * fCalibrationDB ; //! Calibration database if aval
116 Float_t fADCchanelEmc ; // width of one ADC channel in GeV
117 Float_t fADCpedestalEmc ; //
118 Float_t fADCchanelCpv ; // width of one ADC channel in CPV 'popugais'
119 Float_t fADCpedestalCpv ; //
121 Float_t fEmcClusteringThreshold ; // minimum energy to include a EMC digit in a cluster
122 Float_t fCpvClusteringThreshold ; // minimum energy to include a CPV digit in a cluster
123 Float_t fEmcLocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
124 Float_t fW0 ; // logarithmic weight for the cluster center of gravity calculation
125 Float_t fCpvLocMaxCut ; // minimum energy difference to distinguish local maxima in a CPV cluster
126 Float_t fW0CPV ; // logarithmic weight for the CPV cluster center of gravity calculation
127 Int_t fRecPointsInRun ; //! Total number of recpoints in one run
128 Float_t fEmcTimeGate ; // Maximum time difference between the digits in ont EMC cluster
130 ClassDef(AliPHOSClusterizerv1,3) // Clusterizer implementation version 1
134 #endif // AliPHOSCLUSTERIZERV1_H