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 ;
30 class AliPHOSClusterizerv1 : public AliPHOSClusterizer {
34 AliPHOSClusterizerv1() ; // ctor
35 AliPHOSClusterizerv1(const char * headerFile, const char * name = 0);
36 virtual ~AliPHOSClusterizerv1(){} // dtor
38 Int_t AreNeighbours(AliPHOSDigit * d1, AliPHOSDigit * d2)const ;
39 // Checks if digits are in neighbour cells
40 virtual void GetNumberOfClustersFound(int * numb )const{ numb[0] = fNumberOfEmcClusters ;
41 numb[1] = fNumberOfCpvClusters ; }
43 virtual Float_t GetEmcClusteringThreshold()const{ return fEmcClusteringThreshold;}
44 virtual Float_t GetEmcLocalMaxCut()const { return fEmcLocMaxCut;}
45 virtual Float_t GetEmcLogWeight()const { return fW0;}
46 virtual Float_t GetCpvClusteringThreshold()const{ return fCpvClusteringThreshold; }
47 virtual Float_t GetCpvLocalMaxCut()const { return fCpvLocMaxCut;}
48 virtual Float_t GetCpvLogWeight()const { return fW0CPV;}
49 virtual Float_t GetPpsdClusteringThreshold() const { return fPpsdClusteringThreshold; }
50 virtual char * GetRecPointsBranch() const { return (char*) fRecPointsBranchTitle.Data() ;}
51 virtual const Int_t GetRecPointsInRun() const {return fRecPointsInRun ;}
52 virtual char * GetDigitsBranch() const { return (char*) fDigitsBranchTitle.Data() ;}
54 void Exec(Option_t *option); // Does the job
56 virtual void Print(Option_t * option)const ;
58 virtual void SetEmcClusteringThreshold(Float_t cluth) { fEmcClusteringThreshold = cluth ; }
59 virtual void SetEmcLocalMaxCut(Float_t cut) { fEmcLocMaxCut = cut ; }
60 virtual void SetEmcLogWeight(Float_t w) { fW0 = w ; }
61 virtual void SetCpvClusteringThreshold(Float_t cluth) { fCpvClusteringThreshold = cluth ; }
62 virtual void SetCpvLocalMaxCut(Float_t cut) { fCpvLocMaxCut = cut ; }
63 virtual void SetCpvLogWeight(Float_t w) { fW0CPV = w ; }
64 virtual void SetPpsdClusteringThreshold(Float_t cluth) { fPpsdClusteringThreshold = cluth ; }
65 virtual void SetDigitsBranch(const char * title) { fDigitsBranchTitle = title ;}
66 virtual void SetRecPointsBranch(const char *title){fRecPointsBranchTitle = title; }
67 virtual void SetUnfolding(Bool_t toUnfold = kTRUE ) {fToUnfold = toUnfold ;}
68 static Double_t ShowerShape(Double_t r) ; // Shape of EM shower used in unfolding;
69 //class member function (not object member function)
70 static void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
71 // Chi^2 of the fit. Should be static to be passes to MINUIT
72 virtual const char * Version() const { return "clu-v1" ; }
77 virtual Float_t Calibrate(Int_t amp)const { return (amp-fPedestal)/fSlope ;} // Tranforms Amp to energy
78 Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, int * MaxAt, Float_t * maxAtEnergy,
79 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
82 virtual Bool_t IsInEmc (AliPHOSDigit * digit)const ; // Tells if id digit is in EMC
83 virtual Bool_t IsInPpsd(AliPHOSDigit * digit)const ; // Tells if id digit is in PPSD
84 virtual Bool_t IsInCpv (AliPHOSDigit * digit)const ; // Tells if id digit is in CPV
86 virtual void MakeClusters( ) ;
87 virtual void MakeUnfolding() ;
88 Bool_t ReadDigits(Int_t event) ;
89 void UnfoldCluster(AliPHOSEmcRecPoint * iniEmc,Int_t Nmax,
90 int * maxAt,Float_t * maxAtEnergy ) ; //Unfolds cluster using TMinuit package
91 void WriteRecPoints(Int_t event) ;
92 void PrintRecPoints(Option_t * option) ;
96 TString fHeaderFileName ; // name of the file which contains gAlice, Tree headers etc.
97 TString fDigitsBranchTitle ; // name of the file, where digits branch is stored
98 TString fRecPointsBranchTitle ; // name of the file, where RecPoints branchs are stored
100 Bool_t fToUnfold ; // To perform unfolding
103 Int_t fNumberOfEmcClusters ; // number of EMC clusters found
104 Int_t fNumberOfCpvClusters ; // number of CPV+PPSD clusters found
106 Float_t fPedestal ; // Calibration parameters
107 Float_t fSlope ; // read from Digitizer
109 Float_t fEmcClusteringThreshold ; // minimum energy to include a EMC digit in a cluster
110 Float_t fPpsdClusteringThreshold ; // minimum energy to include a PPSD digit in a cluster
111 Float_t fCpvClusteringThreshold ; // minimum energy to include a CPV digit in a cluster
112 Float_t fEmcLocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
113 Float_t fW0 ; // logarithmic weight for the cluster center of gravity calculation
114 Float_t fCpvLocMaxCut ; // minimum energy difference to distinguish local maxima in a CPV cluster
115 Float_t fW0CPV ; // logarithmic weight for the CPV cluster center of gravity calculation
116 Int_t fRecPointsInRun ; //! Total number of recpoints in one run
118 ClassDef(AliPHOSClusterizerv1,1) // Clusterizer implementation version 1
122 #endif // AliPHOSCLUSTERIZERV1_H