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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> | |
59830a87 | 48 | #include <TGeoManager.h> |
4d309390 | 49 | #include "AliMUONRecoCheck.h" |
50 | #include "AliMUONTrack.h" | |
51 | #include "AliMUONTrackParam.h" | |
fa6e7866 | 52 | #include "AliMUONTrackLight.h" |
53 | #include "AliMUONPairLight.h" | |
9bdda5f6 | 54 | #include "AliMUONVTrackStore.h" |
22ccc301 | 55 | #include "AliMUONTrackExtrap.h" |
9bdda5f6 | 56 | #include "AliESDEvent.h" |
57 | #include "AliESDVertex.h" | |
58 | #include "AliMCEventHandler.h" | |
59 | #include "AliMCEvent.h" | |
f7a1cc68 | 60 | #include "AliMagF.h" |
9bdda5f6 | 61 | /*TODO: need to update this with changes made to ITS |
4d309390 | 62 | #include "AliITSVertexerPPZ.h" |
63 | #include "AliITSLoader.h" | |
9bdda5f6 | 64 | */ |
59830a87 | 65 | #include "AliTracker.h" |
4d309390 | 66 | #endif |
fa6e7866 | 67 | |
4d309390 | 68 | |
9bdda5f6 | 69 | void DecodeRecoCocktail( |
70 | char* recodir=".", // The directory containing galice.root for reconstructed data. | |
71 | char* simdir="generated/", // The directory containing galice.root for simulated data. | |
72 | char* outFileName = "MuonLight.root", // The output filename containing AliMUONTrackLight and AliMUONPairLight objects. | |
61fed964 | 73 | char* geoFilename = "geometry.root" // The filename containing the geometry. |
9bdda5f6 | 74 | ) |
75 | { | |
e54bf126 | 76 | /// \param recodir The directory containing galice.root for reconstructed data. |
77 | /// \param simdir The directory containing galice.root for simulated data. | |
78 | /// \param outFileName The output filename containing AliMUONTrackLight and AliMUONPairLight objects. | |
79 | /// \param geoFilename The filename containing the geometry. | |
80 | ||
4d309390 | 81 | char startingDir[200]; |
82 | sprintf (startingDir,"%s",gSystem->pwd()); | |
9bdda5f6 | 83 | gSystem->cd(recodir); |
4d309390 | 84 | |
85 | TClonesArray *muonArray = new TClonesArray("AliMUONTrackLight",10); | |
86 | TClonesArray *dimuonArray = new TClonesArray("AliMUONPairLight",10); | |
87 | TTree *treeOut = new TTree("tree","tree"); | |
88 | ||
fa6e7866 | 89 | TFile *fout = new TFile(outFileName,"recreate"); |
4d309390 | 90 | fout->cd(); |
fa6e7866 | 91 | |
4d309390 | 92 | treeOut->Branch("muons",&muonArray); |
93 | treeOut->Branch("dimuons",&dimuonArray); | |
94 | ||
59830a87 | 95 | // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) |
96 | if (!gGeoManager) { | |
97 | TGeoManager::Import(geoFilename); | |
98 | if (!gGeoManager) { | |
99 | Error("MUONmass_ESD", "getting geometry from file %s failed", geoFilename); | |
100 | return; | |
101 | } | |
102 | } | |
103 | ||
104 | // set mag field | |
105 | // waiting for mag field in CDB | |
f7a1cc68 | 106 | if (!TGeoGlobalMagField::Instance()->GetField()) { |
107 | printf("Loading field map...\n"); | |
108 | AliMagF* field = new AliMagF("Maps","Maps",2,1.,1., 10.,AliMagF::k5kG); | |
109 | TGeoGlobalMagField::Instance()->SetField(field); | |
110 | } | |
59830a87 | 111 | // set the magnetic field for track extrapolations |
f7a1cc68 | 112 | AliMUONTrackExtrap::SetField(); |
59830a87 | 113 | |
61fed964 | 114 | AliMUONRecoCheck *rc = new AliMUONRecoCheck("AliESDs.root", simdir); |
9bdda5f6 | 115 | Int_t nev = rc->NumberOfEvents(); |
fa6e7866 | 116 | |
9bdda5f6 | 117 | /*TODO: need to update this with changes made to ITS |
a4ee7ab9 | 118 | AliITSLoader* ITSloader = (AliITSLoader*) runLoaderSim->GetLoader("ITSLoader"); |
4d309390 | 119 | AliITSVertexerPPZ *dovert = 0; |
120 | if (ITSloader) { | |
121 | dovert = new AliITSVertexerPPZ("default",0,0); | |
21939432 | 122 | // dovert->SetDebug(0); |
4d309390 | 123 | dovert->SetDiffPhiMax(0.05); |
124 | dovert->SetWindow(3.); | |
125 | } | |
126 | AliESDVertex *vert = 0; | |
9bdda5f6 | 127 | */ |
fa6e7866 | 128 | |
129 | TLorentzVector v; | |
9bdda5f6 | 130 | |
fa6e7866 | 131 | for(Int_t ievent = 0; ievent < nev; ievent++){ // loop over events |
9bdda5f6 | 132 | |
133 | /*TODO: need to update this with changes made to ITS | |
a4ee7ab9 | 134 | runLoaderSim->GetHeader(); |
4d309390 | 135 | if (ITSloader) { |
136 | vert = dovert->FindVertexForCurrentEvent(ievent); | |
137 | } | |
9bdda5f6 | 138 | */ |
139 | ||
a4ee7ab9 | 140 | //printf ("Event %d of %d\n",ievent,nev); |
fa6e7866 | 141 | muonArray->Clear(); // clean muon and dimuon arrays |
142 | dimuonArray->Clear(); | |
fa6e7866 | 143 | |
61fed964 | 144 | AliMUONVTrackStore* recoTracks = rc->ReconstructedTracks(ievent); // Use tracks from actual reconstruction, but this does not work anymore. |
9bdda5f6 | 145 | //AliMUONVTrackStore* trackRefs = rc->ReconstructibleTracks(ievent); // Only use reconstructible reference tracks. |
146 | AliMUONVTrackStore* trackRefs = rc->TrackRefs(ievent); | |
61fed964 | 147 | AliStack* pstack = (const_cast<AliMCEventHandler*>(rc->GetMCEventHandler()))->MCEvent()->Stack(); |
9bdda5f6 | 148 | |
149 | TIter next(recoTracks->CreateIterator()); | |
150 | AliMUONTrack* trackReco = NULL; | |
151 | ||
152 | Int_t nTrackReco = recoTracks->GetSize(); | |
61fed964 | 153 | Int_t nTracksESD = rc->GetESDEvent()->GetNumberOfMuonTracks(); |
9bdda5f6 | 154 | if (nTrackReco != nTracksESD) printf ("Tracks in recoTracks (%d) and in ESD (%d) do not match!\n", nTrackReco, nTracksESD); |
155 | Int_t nreftracks = 0; | |
156 | Int_t itrRec = 0; | |
157 | while ( (trackReco = static_cast<AliMUONTrack*>(next())) != NULL ) | |
158 | { | |
fa6e7866 | 159 | // assign parameters concerning the reconstructed tracks |
4d309390 | 160 | AliMUONTrackLight muLight; |
a4ee7ab9 | 161 | |
61fed964 | 162 | muLight.FillFromESD(rc->GetESDEvent()->GetMuonTrack(itrRec)); |
9bdda5f6 | 163 | // muLight.FillFromAliMUONTrack(trackReco); |
4d309390 | 164 | |
165 | // find the reference track and store further information | |
61fed964 | 166 | TParticle *part = muLight.FindRefTrack(trackReco, trackRefs, pstack); |
fa6e7866 | 167 | if (part) { |
168 | v.SetPxPyPzE(part->Px(), part->Py(), part->Pz(), part->Energy()); | |
82724a77 | 169 | muLight.SetPGen(v); |
9bdda5f6 | 170 | muLight.FillMuonHistory(pstack, part); |
4d309390 | 171 | // muLight.PrintInfo("A"); |
fa6e7866 | 172 | //store the referenced track in the muonArray: |
173 | TClonesArray &muons = *muonArray; | |
82724a77 | 174 | new (muons[nreftracks++]) AliMUONTrackLight(muLight); |
4d309390 | 175 | } |
9bdda5f6 | 176 | |
177 | itrRec++; | |
4d309390 | 178 | } // end reco track |
fa6e7866 | 179 | |
180 | // now loop over muon pairs to build dimuons | |
181 | Int_t nmuons = muonArray->GetEntriesFast(); | |
182 | Int_t ndimuons = 0; | |
183 | for(Int_t itrRec1 = 0; itrRec1 < nmuons-1; itrRec1++) { | |
184 | AliMUONTrackLight* mu1 = (AliMUONTrackLight*) muonArray->At(itrRec1); | |
185 | for(Int_t itrRec2 = itrRec1+1; itrRec2 < nmuons; itrRec2++){ | |
186 | AliMUONTrackLight* mu2 = (AliMUONTrackLight*) muonArray->At(itrRec2); | |
4d309390 | 187 | AliMUONPairLight dimuLight; |
82724a77 | 188 | dimuLight.SetMuons(*mu1, *mu2); |
fa6e7866 | 189 | TClonesArray &dimuons = *dimuonArray; |
82724a77 | 190 | new (dimuons[ndimuons++]) AliMUONPairLight(dimuLight); |
fa6e7866 | 191 | } |
192 | } | |
9bdda5f6 | 193 | |
fa6e7866 | 194 | treeOut->Fill(); |
4d309390 | 195 | } |
196 | ||
fa6e7866 | 197 | fout->cd(); |
198 | treeOut->Write(); | |
199 | gSystem->cd(startingDir); | |
82724a77 | 200 | fout->Close(); |
82724a77 | 201 | delete muonArray; |
202 | delete dimuonArray; | |
4d309390 | 203 | delete treeOut; |
204 | delete fout; | |
205 | delete rc; | |
fa6e7866 | 206 | } |
4d309390 | 207 |