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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), |
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56 | fRef(0x0), |
| 57 | fSignalFlag(0), |
| 58 | fCutFlag(0), |
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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 | |
git://git.uio.no / u / mrichter / AliRoot.git / blame