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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 */
5
6/* $Id$ */
7
8/* History of cvs commits:
9 *
10 * $Log: AliPHOSClusterizerv1.h,v $
11 * Revision 1.54 2007/10/01 20:24:08 kharlov
12 * Memory leaks fixed
13 *
14 * Revision 1.53 2007/08/28 12:55:07 policheh
15 * Loaders removed from the reconstruction code (C.Cheshkov)
16 *
17 * Revision 1.52 2007/08/07 14:16:00 kharlov
18 * Quality assurance added (Yves Schutz)
19 *
20 * Revision 1.51 2007/04/11 11:55:45 policheh
21 * SetDistancesToBadChannels() added.
22 *
23 * Revision 1.50 2007/03/28 19:18:15 kharlov
24 * RecPoints recalculation in TSM removed
25 *
26 * Revision 1.49 2007/03/06 06:51:27 kharlov
27 * Calculation of cluster properties dep. on vertex posponed to TrackSegmentMaker
28 *
29 * Revision 1.48 2006/08/30 16:12:52 kharlov
30 * Reconstruction of raw data from beam test 2006 (B.Polichtchouk)
31 *
32 * Revision 1.47 2006/08/25 16:56:30 kharlov
33 * Compliance with Effective C++
34 *
35 * Revision 1.46 2006/08/01 12:20:17 cvetan
36 * 1. Adding a possibility to read and reconstruct an old rcu formatted raw data. This is controlled by an option of AliReconstruction and AliPHOSReconstructor. 2. In case of raw data processing (without galice.root) create the default AliPHOSGeometry object. Most likely this should be moved to the CDB
37 *
38 * Revision 1.45 2006/04/29 20:26:46 hristov
39 * Separate EMC and CPV calibration (Yu.Kharlov)
40 *
41 * Revision 1.44 2005/09/02 14:32:07 kharlov
42 * Calibration of raw data
43 *
44 * Revision 1.43 2005/05/28 14:19:04 schutz
45 * Compilation warnings fixed by T.P.
46 *
47 */
48
49//_________________________________________________________________________
50// Implementation version 1 of the clusterization algorithm
51// Performs clusterization (collects neighbouring active cells) and
52// unfolding of the clusters with several local maxima.
53// results are stored in TreeR#, branches PHOSEmcRP (EMC recPoints),
54// PHOSCpvRP (CPV RecPoints) and AliPHOSClusterizer
55//
56//*-- Author: Yves Schutz (SUBATECH)
57
58// --- ROOT system ---
59class TClonesArray ;
60class TVector3 ;
61// --- Standard library ---
62
63// --- AliRoot header files ---
64
65#include "AliPHOSClusterizer.h"
66class AliPHOSEmcRecPoint ;
67class AliPHOSDigit ;
68class AliPHOSDigitizer ;
69class AliPHOSGeometry ;
70
71class AliPHOSClusterizerv1 : public AliPHOSClusterizer {
72
73public:
74
75 AliPHOSClusterizerv1() ;
76 AliPHOSClusterizerv1(AliPHOSGeometry *geom);
77 virtual ~AliPHOSClusterizerv1() ;
78
79 virtual Int_t AreNeighbours(AliPHOSDigit * d1, AliPHOSDigit * d2)const ;
80 // Checks if digits are in neighbour cells
81
82 virtual void GetNumberOfClustersFound(int * numb )const{ numb[0] = fNumberOfEmcClusters ;
83 numb[1] = fNumberOfCpvClusters ; }
84
85 virtual Float_t GetEmcClusteringThreshold()const{ return fEmcClusteringThreshold;}
86 virtual Float_t GetEmcLocalMaxCut()const { return fEmcLocMaxCut;}
87 virtual Float_t GetEmcLogWeight()const { return fW0;}
88 virtual Float_t GetEmcTimeGate() const { return fEmcTimeGate ; }
89 virtual Float_t GetCpvClusteringThreshold()const{ return fCpvClusteringThreshold; }
90 virtual Float_t GetCpvLocalMaxCut()const { return fCpvLocMaxCut;}
91 virtual Float_t GetCpvLogWeight()const { return fW0CPV;}
92 virtual Float_t GetEcoreRadius()const { return fEcoreRadius;}
93 // virtual const char * GetRecPointsBranch() const{ return GetName() ;}
94
95 virtual void Digits2Clusters(Option_t *option);
96
97 void Print(const Option_t * = "")const ;
98
99 virtual void SetEmcClusteringThreshold(Float_t cluth) { fEmcClusteringThreshold = cluth ; }
100 virtual void SetEmcLocalMaxCut(Float_t cut) { fEmcLocMaxCut = cut ; }
101 virtual void SetEmcLogWeight(Float_t w) { fW0 = w ; }
102 virtual void SetEmcTimeGate(Float_t gate) { fEmcTimeGate = gate ;}
103 virtual void SetCpvClusteringThreshold(Float_t cluth) { fCpvClusteringThreshold = cluth ; }
104 virtual void SetCpvLocalMaxCut(Float_t cut) { fCpvLocMaxCut = cut ; }
105 virtual void SetCpvLogWeight(Float_t w) { fW0CPV = w ; }
106 virtual void SetUnfolding(Bool_t toUnfold = kTRUE ) { fToUnfold = toUnfold ;}
107 virtual void SetCoreRadius(Float_t coreRadius) { fEcoreRadius = coreRadius ;}
108 //Switch to "on flyght" mode, without writing to TreeR and file
109 void SetWriting(Bool_t toWrite = kFALSE){fWrite = toWrite;}
110 static Double_t ShowerShape(Double_t x, Double_t z) ; // Shape of EM shower used in unfolding;
111 //class member function (not object member function)
112 static void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
113 // Chi^2 of the fit. Should be static to be passed to MINUIT
114 // void Unload() ;
115 virtual const char * Version() const { return "clu-v1"; }
116
117protected:
118
119 void WriteRecPoints() ;
120 virtual void MakeClusters( ) ;
121 virtual Bool_t IsInEmc (AliPHOSDigit * digit)const ; // Tells if id digit is in EMC
122 virtual Bool_t IsInCpv (AliPHOSDigit * digit)const ; // Tells if id digit is in CPV
123 void CleanDigits(TClonesArray * digits) ;
124 void SetDistancesToBadChannels();
125
126private:
127 AliPHOSClusterizerv1(const AliPHOSClusterizerv1 & clu) ;
128 AliPHOSClusterizerv1 & operator = (const AliPHOSClusterizerv1 & obj);
129
130 Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, AliPHOSDigit ** MaxAt, Float_t * maxAtEnergy,
131 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
132 void Init() ;
133 void InitParameters() ;
134
135 virtual void MakeUnfolding() ;
136 void UnfoldCluster(AliPHOSEmcRecPoint * iniEmc,Int_t Nmax,
137 AliPHOSDigit ** maxAt,Float_t * maxAtEnergy ) ; //Unfolds cluster using TMinuit package
138 void PrintRecPoints(Option_t * option) ;
139
140private:
141
142 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
143 Int_t fEmcCrystals ; // number of EMC cristals in PHOS
144
145 Bool_t fToUnfold ; // To perform unfolding
146 Bool_t fWrite ; // Write RecPoints to TreeR
147 Bool_t fDigitsUsed[53760]; //Mark digits as already used in cluster (EMC:5*56*64 ; CPV: 5*56*128)
148
149 Int_t fNumberOfEmcClusters ; // number of EMC clusters found
150 Int_t fNumberOfCpvClusters ; // number of CPV clusters found
151
152 Float_t fEmcClusteringThreshold ; // minimum energy to start EMC cluster
153 Float_t fCpvClusteringThreshold ; // minimum energy to start CPV cluster
154 Float_t fEmcLocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
155 Float_t fW0 ; // logarithmic weight for the cluster center of gravity calculation
156 Float_t fCpvLocMaxCut ; // minimum energy difference to distinguish local maxima in a CPV cluster
157 Float_t fW0CPV ; // logarithmic weight for the CPV cluster center of gravity calculation
158 Float_t fEmcTimeGate ; // Maximum time difference between the digits in ont EMC cluster
159 Float_t fEcoreRadius ; // Radius within which the core energy is calculated, in cm
160
161 ClassDef(AliPHOSClusterizerv1,7) // Clusterizer implementation version 1
162
163};
164
165#endif // AliPHOSCLUSTERIZERV1_H