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be6e5811 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | ||
17 | //====================================================================== | |
18 | // ***July 2009 | |
19 | // Fill Unit Array class | |
20 | // Base class used by AliJetESDReader to fill a UnitArray from the information extracted | |
21 | // from the particle tracks or emcal cells | |
22 | // Author: magali.estienne@subatech.in2p3.fr | |
23 | //====================================================================== | |
24 | ||
25 | ||
26 | #include "AliJetFillUnitArray.h" | |
27 | ||
28 | // --- ROOT system --- | |
29 | class TSystem; | |
30 | class TLorentzVector; | |
31 | class TVector3; | |
32 | class TGeoManager; | |
33 | class TProcessID; | |
34 | ||
35 | // --- AliRoot header files --- | |
36 | class AliJetFinder; | |
37 | class AliJetReader; | |
38 | class AliJetESDReader; | |
39 | class AliJetESDReaderHeader; | |
40 | class AliJetUnitArray; | |
41 | ||
42 | ClassImp(AliJetFillUnitArray) | |
43 | ||
44 | //_____________________________________________________________________________ | |
45 | AliJetFillUnitArray::AliJetFillUnitArray() | |
46 | : TTask("AliJetFillUnitArray","Fill Unit Array with tpc/its and emcal information"), | |
47 | fNTracks(0), | |
48 | fNTracksCut(0), | |
49 | fOpt(0), | |
50 | fDZ(0), | |
51 | fDebug(0), | |
52 | fReaderHeader(0x0), | |
53 | fMomentumArray(0x0), | |
54 | fUnitArray(0x0), | |
55 | fRefArray(0x0), | |
e36a3f22 | 56 | fRef(0x0), |
57 | fSignalFlag(0), | |
58 | fCutFlag(0), | |
be6e5811 | 59 | fProcId(kFALSE), |
60 | fTPCGrid(0x0), | |
61 | fEMCalGrid(0x0), | |
62 | fGeom(0x0), | |
63 | fNphi(0), | |
64 | fNeta(0), | |
65 | fGrid(0), | |
66 | fPhi2(0), | |
67 | fEta2(0), | |
68 | fIndex(0x0), | |
69 | fParams(0x0), | |
70 | fPhiMin(0), | |
71 | fPhiMax(0), | |
72 | fEtaMin(0), | |
73 | fEtaMax(0), | |
74 | fEtaBinInTPCAcc(0), | |
75 | fPhiBinInTPCAcc(0), | |
76 | fEtaBinInEMCalAcc(0), | |
77 | fPhiBinInEMCalAcc(0), | |
78 | fNbinPhi(0) | |
79 | { | |
80 | // constructor | |
81 | } | |
82 | ||
83 | //_____________________________________________________________________________ | |
84 | AliJetFillUnitArray::~AliJetFillUnitArray() | |
85 | { | |
86 | // destructor | |
87 | } | |
88 | ||
89 | //_____________________________________________________________________________ | |
90 | void AliJetFillUnitArray::GetEtaPhiFromIndex(Int_t index, Float_t &eta, Float_t &phi) | |
91 | { | |
92 | // Get the eta,phi position from the index | |
93 | ||
94 | for(Int_t j=0; j<fNphi+1; j++) { | |
95 | for(Int_t i=0; i<fNeta+1; i++) { | |
96 | ||
97 | // TPC grid only | |
98 | //------------------------------------- | |
99 | if(fGrid==0) { | |
100 | if(j*(fNeta+1)+i == index) { | |
101 | eta = fEta2->At(i); | |
102 | phi = fPhi2->At(j); | |
103 | } | |
104 | } | |
105 | ||
106 | // TPC-EMCAL grid | |
107 | //------------------------------------- | |
108 | Int_t ii = 0; | |
109 | if(i==0) ii = 0; | |
110 | if(i>0 && i<(fEtaBinInTPCAcc-fEtaBinInEMCalAcc)/2) ii = i; | |
111 | if(i>=(fEtaBinInTPCAcc+fEtaBinInEMCalAcc)/2 && i<fNeta+1) ii = i-fEtaBinInEMCalAcc; | |
112 | ||
113 | if(fGrid==1) { | |
114 | if(j<(fNbinPhi+1) && j*(fNeta+1)+i == index) { | |
115 | eta = fEta2->At(i); | |
116 | phi = fPhi2->At(j); | |
117 | } | |
118 | ||
119 | if((j>=(fNbinPhi+1) && j<(fNbinPhi+1+fPhiBinInEMCalAcc)) && | |
120 | ((fNbinPhi+1)*(fNeta+1) + (j-fNbinPhi-1)*(fEtaBinInTPCAcc-fEtaBinInEMCalAcc) + ii)== index ) { | |
121 | if(ii==0) {Int_t ind = 0; eta = fEta2->At(ind);} | |
122 | else eta = fEta2->At(i); | |
123 | phi = fPhi2->At(j); | |
124 | } | |
125 | ||
126 | if(j>=(fNbinPhi+1+fPhiBinInEMCalAcc) && ((fNbinPhi+1)*(fNeta+1)+fPhiBinInEMCalAcc*((fEtaBinInTPCAcc-fEtaBinInEMCalAcc))+(j-(fNbinPhi+1+fPhiBinInEMCalAcc))*(fNeta+1)+i == index)) { | |
127 | eta = fEta2->At(i); | |
128 | phi = fPhi2->At(j); | |
129 | } | |
130 | } | |
131 | } | |
132 | } | |
133 | } | |
134 | ||
135 | //_____________________________________________________________________________ | |
136 | Float_t AliJetFillUnitArray::EtaToTheta(Float_t arg) | |
137 | { | |
138 | return 2.*atan(exp(-arg)); | |
139 | } | |
140 | ||
141 | ||
142 | ||
143 | ||
144 | ||
145 | ||
146 |