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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), | |
56 | fProcId(kFALSE), | |
57 | fTPCGrid(0x0), | |
58 | fEMCalGrid(0x0), | |
59 | fGeom(0x0), | |
60 | fNphi(0), | |
61 | fNeta(0), | |
62 | fGrid(0), | |
63 | fPhi2(0), | |
64 | fEta2(0), | |
65 | fIndex(0x0), | |
66 | fParams(0x0), | |
67 | fPhiMin(0), | |
68 | fPhiMax(0), | |
69 | fEtaMin(0), | |
70 | fEtaMax(0), | |
71 | fEtaBinInTPCAcc(0), | |
72 | fPhiBinInTPCAcc(0), | |
73 | fEtaBinInEMCalAcc(0), | |
74 | fPhiBinInEMCalAcc(0), | |
75 | fNbinPhi(0) | |
76 | { | |
77 | // constructor | |
78 | } | |
79 | ||
80 | //_____________________________________________________________________________ | |
81 | AliJetFillUnitArray::~AliJetFillUnitArray() | |
82 | { | |
83 | // destructor | |
84 | } | |
85 | ||
86 | //_____________________________________________________________________________ | |
87 | void AliJetFillUnitArray::GetEtaPhiFromIndex(Int_t index, Float_t &eta, Float_t &phi) | |
88 | { | |
89 | // Get the eta,phi position from the index | |
90 | ||
91 | for(Int_t j=0; j<fNphi+1; j++) { | |
92 | for(Int_t i=0; i<fNeta+1; i++) { | |
93 | ||
94 | // TPC grid only | |
95 | //------------------------------------- | |
96 | if(fGrid==0) { | |
97 | if(j*(fNeta+1)+i == index) { | |
98 | eta = fEta2->At(i); | |
99 | phi = fPhi2->At(j); | |
100 | } | |
101 | } | |
102 | ||
103 | // TPC-EMCAL grid | |
104 | //------------------------------------- | |
105 | Int_t ii = 0; | |
106 | if(i==0) ii = 0; | |
107 | if(i>0 && i<(fEtaBinInTPCAcc-fEtaBinInEMCalAcc)/2) ii = i; | |
108 | if(i>=(fEtaBinInTPCAcc+fEtaBinInEMCalAcc)/2 && i<fNeta+1) ii = i-fEtaBinInEMCalAcc; | |
109 | ||
110 | if(fGrid==1) { | |
111 | if(j<(fNbinPhi+1) && j*(fNeta+1)+i == index) { | |
112 | eta = fEta2->At(i); | |
113 | phi = fPhi2->At(j); | |
114 | } | |
115 | ||
116 | if((j>=(fNbinPhi+1) && j<(fNbinPhi+1+fPhiBinInEMCalAcc)) && | |
117 | ((fNbinPhi+1)*(fNeta+1) + (j-fNbinPhi-1)*(fEtaBinInTPCAcc-fEtaBinInEMCalAcc) + ii)== index ) { | |
118 | if(ii==0) {Int_t ind = 0; eta = fEta2->At(ind);} | |
119 | else eta = fEta2->At(i); | |
120 | phi = fPhi2->At(j); | |
121 | } | |
122 | ||
123 | if(j>=(fNbinPhi+1+fPhiBinInEMCalAcc) && ((fNbinPhi+1)*(fNeta+1)+fPhiBinInEMCalAcc*((fEtaBinInTPCAcc-fEtaBinInEMCalAcc))+(j-(fNbinPhi+1+fPhiBinInEMCalAcc))*(fNeta+1)+i == index)) { | |
124 | eta = fEta2->At(i); | |
125 | phi = fPhi2->At(j); | |
126 | } | |
127 | } | |
128 | } | |
129 | } | |
130 | } | |
131 | ||
132 | //_____________________________________________________________________________ | |
133 | Float_t AliJetFillUnitArray::EtaToTheta(Float_t arg) | |
134 | { | |
135 | return 2.*atan(exp(-arg)); | |
136 | } | |
137 | ||
138 | ||
139 | ||
140 | ||
141 | ||
142 | ||
143 |