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fa6e7866 | 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 | /* $Id$ */ | |
17 | ||
e54bf126 | 18 | /// \ingroup macros |
19 | /// \file DecodeRecoCocktail.C | |
20 | /// \brief add brief description | |
21 | /// | |
22 | /// \author A. De Falco, H. Woehri, INFN Cagliari, July 2006 | |
23 | /// | |
24 | /// This macro reads the generation/reconstruction files in the | |
25 | /// input directories (recodir and simdir), | |
26 | /// builds a tree that contains, for each event, an array of muons and dimuons | |
27 | /// (TClonesArrays of AliMUONTrackLight and AliMUONPairLight objects) | |
28 | /// and writes the tree in an output file (outFileName) | |
29 | /// Note that if the path for the output file is not explicitly specified, | |
30 | /// it will be written in the directory containing the generation/reconstruction | |
31 | /// 27-Nov-2006: modified by in order to loop on files | |
32 | /// | |
33 | /// 13 Nov 2007: | |
34 | /// Updated this macro to work with new version of AliMUONRecoCheck. Also, we are | |
35 | /// now fetching reconstructed track data from ESD and not the track tree, because | |
36 | /// the AliMUONTrack objects for reconstructed tracks are no longer stored on disk. | |
37 | /// - Artur Szostak <artursz@iafrica.com> | |
9bdda5f6 | 38 | |
4d309390 | 39 | #if !defined(__CINT__) || defined(__MAKECINT__) |
40 | #include <Riostream.h> | |
fa6e7866 | 41 | #include <TClonesArray.h> |
42 | #include <TFile.h> | |
43 | #include <TTree.h> | |
44 | #include <TMath.h> | |
45 | #include <TLorentzVector.h> | |
46 | #include <TParticle.h> | |
47 | #include <TSystem.h> | |
4d309390 | 48 | #include "AliMUONRecoCheck.h" |
49 | #include "AliMUONTrack.h" | |
fa6e7866 | 50 | #include "AliMUONTrackLight.h" |
51 | #include "AliMUONPairLight.h" | |
9bdda5f6 | 52 | #include "AliMUONVTrackStore.h" |
9bdda5f6 | 53 | #include "AliESDEvent.h" |
54 | #include "AliESDVertex.h" | |
f202486b | 55 | #include "AliESDMuonTrack.h" |
9bdda5f6 | 56 | #include "AliMCEventHandler.h" |
57 | #include "AliMCEvent.h" | |
a99c3449 | 58 | #include "AliStack.h" |
9bdda5f6 | 59 | /*TODO: need to update this with changes made to ITS |
4d309390 | 60 | #include "AliITSVertexerPPZ.h" |
61 | #include "AliITSLoader.h" | |
9bdda5f6 | 62 | */ |
4d309390 | 63 | #endif |
fa6e7866 | 64 | |
4d309390 | 65 | |
9bdda5f6 | 66 | void DecodeRecoCocktail( |
67 | char* recodir=".", // The directory containing galice.root for reconstructed data. | |
68 | char* simdir="generated/", // The directory containing galice.root for simulated data. | |
f202486b | 69 | char* outFileName = "MuonLight.root" // The output filename containing AliMUONTrackLight and AliMUONPairLight objects. |
9bdda5f6 | 70 | ) |
71 | { | |
e54bf126 | 72 | /// \param recodir The directory containing galice.root for reconstructed data. |
73 | /// \param simdir The directory containing galice.root for simulated data. | |
74 | /// \param outFileName The output filename containing AliMUONTrackLight and AliMUONPairLight objects. | |
e54bf126 | 75 | |
4d309390 | 76 | char startingDir[200]; |
77 | sprintf (startingDir,"%s",gSystem->pwd()); | |
9bdda5f6 | 78 | gSystem->cd(recodir); |
4d309390 | 79 | |
80 | TClonesArray *muonArray = new TClonesArray("AliMUONTrackLight",10); | |
81 | TClonesArray *dimuonArray = new TClonesArray("AliMUONPairLight",10); | |
82 | TTree *treeOut = new TTree("tree","tree"); | |
83 | ||
fa6e7866 | 84 | TFile *fout = new TFile(outFileName,"recreate"); |
4d309390 | 85 | fout->cd(); |
fa6e7866 | 86 | |
4d309390 | 87 | treeOut->Branch("muons",&muonArray); |
88 | treeOut->Branch("dimuons",&dimuonArray); | |
89 | ||
61fed964 | 90 | AliMUONRecoCheck *rc = new AliMUONRecoCheck("AliESDs.root", simdir); |
fa6e7866 | 91 | |
9bdda5f6 | 92 | /*TODO: need to update this with changes made to ITS |
a4ee7ab9 | 93 | AliITSLoader* ITSloader = (AliITSLoader*) runLoaderSim->GetLoader("ITSLoader"); |
4d309390 | 94 | AliITSVertexerPPZ *dovert = 0; |
95 | if (ITSloader) { | |
96 | dovert = new AliITSVertexerPPZ("default",0,0); | |
21939432 | 97 | // dovert->SetDebug(0); |
4d309390 | 98 | dovert->SetDiffPhiMax(0.05); |
99 | dovert->SetWindow(3.); | |
100 | } | |
101 | AliESDVertex *vert = 0; | |
9bdda5f6 | 102 | */ |
fa6e7866 | 103 | |
104 | TLorentzVector v; | |
9bdda5f6 | 105 | |
f202486b | 106 | Int_t nev = rc->NumberOfEvents(); |
fa6e7866 | 107 | for(Int_t ievent = 0; ievent < nev; ievent++){ // loop over events |
9bdda5f6 | 108 | |
109 | /*TODO: need to update this with changes made to ITS | |
a4ee7ab9 | 110 | runLoaderSim->GetHeader(); |
4d309390 | 111 | if (ITSloader) { |
112 | vert = dovert->FindVertexForCurrentEvent(ievent); | |
113 | } | |
9bdda5f6 | 114 | */ |
115 | ||
a4ee7ab9 | 116 | //printf ("Event %d of %d\n",ievent,nev); |
fa6e7866 | 117 | muonArray->Clear(); // clean muon and dimuon arrays |
118 | dimuonArray->Clear(); | |
fa6e7866 | 119 | |
a99c3449 | 120 | AliMUONVTrackStore* recoTracks = rc->ReconstructedTracks(ievent, kFALSE); // Use tracks from actual reconstruction. |
9bdda5f6 | 121 | //AliMUONVTrackStore* trackRefs = rc->ReconstructibleTracks(ievent); // Only use reconstructible reference tracks. |
122 | AliMUONVTrackStore* trackRefs = rc->TrackRefs(ievent); | |
61fed964 | 123 | AliStack* pstack = (const_cast<AliMCEventHandler*>(rc->GetMCEventHandler()))->MCEvent()->Stack(); |
9bdda5f6 | 124 | |
f202486b | 125 | // loop over ESD tracks |
9bdda5f6 | 126 | Int_t nreftracks = 0; |
f202486b | 127 | const AliESDEvent* esd = rc->GetESDEvent(); |
128 | Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ; | |
129 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
130 | ||
131 | AliESDMuonTrack* esdTrack = esd->GetMuonTrack(iTrack); | |
132 | ||
133 | // skip ghosts | |
134 | if (!esdTrack->ContainTrackerData()) continue; | |
a4ee7ab9 | 135 | |
f202486b | 136 | // find the corresponding MUON track |
137 | AliMUONTrack* trackReco = (AliMUONTrack*) recoTracks->FindObject(esdTrack->GetUniqueID()); | |
4d309390 | 138 | |
f202486b | 139 | // try to match the reconstructed track with a simulated one |
140 | Int_t nMatchClusters = 0; | |
141 | AliMUONTrack* matchedTrackRef = rc->FindCompatibleTrack(*trackReco, *trackRefs, nMatchClusters, kFALSE, 10.); | |
142 | ||
143 | if (matchedTrackRef) { | |
144 | ||
145 | //store new referenced track in the muonArray | |
146 | AliMUONTrackLight* muLight = new ((*muonArray)[nreftracks++]) AliMUONTrackLight(); | |
147 | ||
148 | // assign parameters concerning the reconstructed tracks | |
149 | muLight->FillFromESD(esdTrack); | |
150 | // muLight->FillFromAliMUONTrack(trackReco); | |
151 | ||
152 | // store further information related to the simulated track | |
153 | muLight->SetTrackPythiaLine(matchedTrackRef->GetUniqueID()); | |
154 | TParticle *part = pstack->Particle(matchedTrackRef->GetUniqueID()); | |
155 | muLight->SetTrackPDGCode(part->GetPdgCode()); | |
fa6e7866 | 156 | v.SetPxPyPzE(part->Px(), part->Py(), part->Pz(), part->Energy()); |
f202486b | 157 | muLight->SetPGen(v); |
158 | muLight->FillMuonHistory(pstack, part); | |
4d309390 | 159 | // muLight.PrintInfo("A"); |
f202486b | 160 | |
161 | } | |
9bdda5f6 | 162 | |
f202486b | 163 | } // end esd track |
fa6e7866 | 164 | |
165 | // now loop over muon pairs to build dimuons | |
166 | Int_t nmuons = muonArray->GetEntriesFast(); | |
167 | Int_t ndimuons = 0; | |
168 | for(Int_t itrRec1 = 0; itrRec1 < nmuons-1; itrRec1++) { | |
169 | AliMUONTrackLight* mu1 = (AliMUONTrackLight*) muonArray->At(itrRec1); | |
170 | for(Int_t itrRec2 = itrRec1+1; itrRec2 < nmuons; itrRec2++){ | |
171 | AliMUONTrackLight* mu2 = (AliMUONTrackLight*) muonArray->At(itrRec2); | |
4d309390 | 172 | AliMUONPairLight dimuLight; |
82724a77 | 173 | dimuLight.SetMuons(*mu1, *mu2); |
fa6e7866 | 174 | TClonesArray &dimuons = *dimuonArray; |
82724a77 | 175 | new (dimuons[ndimuons++]) AliMUONPairLight(dimuLight); |
fa6e7866 | 176 | } |
177 | } | |
9bdda5f6 | 178 | |
fa6e7866 | 179 | treeOut->Fill(); |
4d309390 | 180 | } |
181 | ||
fa6e7866 | 182 | fout->cd(); |
183 | treeOut->Write(); | |
184 | gSystem->cd(startingDir); | |
82724a77 | 185 | fout->Close(); |
82724a77 | 186 | delete muonArray; |
187 | delete dimuonArray; | |
4d309390 | 188 | delete treeOut; |
189 | delete fout; | |
190 | delete rc; | |
fa6e7866 | 191 | } |
4d309390 | 192 |