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7deb8eb0 | 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 | ||
18 | /// \ingroup macros | |
19 | /// \file MUONRefit.C | |
20 | /// \brief Macro for refitting ESD tracks from ESD pads | |
21 | /// | |
22 | /// \author Philippe Pillot, SUBATECH | |
23 | ||
24 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
25 | #include <TStopwatch.h> | |
26 | #include <TFile.h> | |
27 | #include <TTree.h> | |
28 | #include <TString.h> | |
29 | #include <Riostream.h> | |
30 | #include <TGeoManager.h> | |
31 | #include <TRandom.h> | |
32 | #include <TROOT.h> | |
33 | ||
34 | // STEER includes | |
35 | #include "AliMagFMaps.h" | |
36 | #include "AliTracker.h" | |
37 | #include "AliESDEvent.h" | |
38 | #include "AliESDMuonTrack.h" | |
39 | #include "AliRecoParam.h" | |
40 | #include "AliCDBManager.h" | |
41 | #include "AliGeomManager.h" | |
42 | ||
43 | // MUON includes | |
44 | #include "AliMpCDB.h" | |
45 | #include "AliMUONRecoParam.h" | |
46 | #include "AliMUONESDInterface.h" | |
47 | #include "AliMUONRefitter.h" | |
48 | #include "AliMUONVDigit.h" | |
49 | #include "AliMUONVCluster.h" | |
50 | #include "AliMUONVClusterStore.h" | |
51 | #include "AliMUONTrack.h" | |
52 | #include "AliMUONVTrackStore.h" | |
53 | #include "AliMUONTrackParam.h" | |
54 | #include "AliMUONTrackExtrap.h" | |
55 | #endif | |
56 | ||
57 | const Int_t printLevel = 1; | |
58 | ||
59 | void Prepare(); | |
60 | TTree* GetESDTree(TFile *esdFile); | |
61 | ||
62 | //----------------------------------------------------------------------- | |
63 | void MUONRefit(Int_t nevents = -1, const char* esdFileNameIn = "AliESDs.root", const char* esdFileNameOut = "AliESDs_New.root") | |
64 | { | |
65 | /// refit ESD tracks from ESD pads (i.e. re-clusterized the attached ESD clusters); | |
66 | /// reset the charge of the digit using their raw charge before refitting; | |
67 | /// compare results with original ESD tracks; | |
68 | /// write results in a new ESD file | |
69 | ||
70 | // prepare the refitting | |
71 | gRandom->SetSeed(1); | |
72 | Prepare(); | |
73 | AliMUONESDInterface esdInterface; | |
74 | AliMUONRefitter refitter; | |
75 | refitter.Connect(&esdInterface); | |
76 | ||
77 | // open the ESD file and tree | |
78 | TFile* esdFile = TFile::Open(esdFileNameIn); | |
79 | TTree* esdTree = GetESDTree(esdFile); | |
80 | ||
81 | // create the ESD output tree | |
82 | gROOT->cd(); | |
83 | TTree* newESDTree = esdTree->CloneTree(0); | |
84 | ||
85 | // connect ESD event to the ESD tree | |
86 | AliESDEvent* esd = new AliESDEvent(); | |
87 | esd->ReadFromTree(esdTree); | |
88 | ||
89 | // timer start... | |
90 | TStopwatch timer; | |
91 | ||
92 | // Loop over ESD events | |
93 | if (nevents > 0) nevents = TMath::Min(nevents,(Int_t)esdTree->GetEntries()); | |
94 | else nevents = (Int_t)esdTree->GetEntries(); | |
95 | for (Int_t iEvent = 0; iEvent < nevents; iEvent++) { | |
96 | if (printLevel>0) cout<<endl<<" ****************event #"<<iEvent+1<<"****************"<<endl; | |
97 | ||
98 | //----------------------------------------------// | |
99 | // -------------- process event --------------- // | |
100 | //----------------------------------------------// | |
101 | // get the ESD of current event | |
102 | esdTree->GetEvent(iEvent); | |
103 | if (!esd) { | |
104 | Error("CheckESD", "no ESD object found for event %d", iEvent); | |
105 | return; | |
106 | } | |
107 | Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks(); | |
108 | if (nTracks < 1) continue; | |
109 | ||
110 | // load the current event | |
111 | esdInterface.LoadEvent(*esd); | |
112 | ||
113 | // loop over digit to modify their charge | |
114 | AliMUONVDigit *digit; | |
115 | TIter next(esdInterface.CreateDigitIterator()); | |
116 | while ((digit = static_cast<AliMUONVDigit*>(next()))) digit->SetCharge(digit->ADC()); | |
117 | ||
118 | // refit the tracks from digits | |
119 | AliMUONVTrackStore* newTrackStore = refitter.ReconstructFromDigits(); | |
120 | ||
121 | //----------------------------------------------// | |
122 | // ------ fill new ESD and print results ------ // | |
123 | //----------------------------------------------// | |
124 | // loop over the list of ESD tracks | |
125 | TClonesArray *esdTracks = (TClonesArray*) esd->FindListObject("MuonTracks"); | |
126 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
127 | ||
128 | // get the ESD track | |
129 | AliESDMuonTrack* esdTrack = (AliESDMuonTrack*) esdTracks->UncheckedAt(iTrack); | |
130 | // get the corresponding MUON track | |
131 | AliMUONTrack* track = esdInterface.GetTrackFast(iTrack); | |
132 | // Find the corresponding re-fitted MUON track | |
133 | AliMUONTrack* newTrack = (AliMUONTrack*) newTrackStore->FindObject(esdTrack->GetUniqueID()); | |
134 | ||
135 | // replace the content of the current ESD track or remove it if the refitting has failed | |
136 | if (newTrack) { | |
137 | Double_t vertex[3] = {esdTrack->GetNonBendingCoor(), esdTrack->GetBendingCoor(), esdTrack->GetZ()}; | |
138 | AliMUONESDInterface::MUONToESD(*newTrack, *esdTrack, vertex, esdInterface.GetDigits()); | |
139 | } else { | |
140 | esdTracks->Remove(esdTrack); | |
141 | } | |
142 | ||
143 | // print initial and re-fitted track parameters at first cluster if any | |
144 | if (printLevel>0) { | |
145 | cout<<" ----------------track #"<<iTrack+1<<"----------------"<<endl; | |
146 | cout<<"before refit:"<<endl; | |
147 | AliMUONTrackParam *param = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->First(); | |
148 | param->Print("FULL"); | |
149 | if (printLevel>1) param->GetCovariances().Print(); | |
150 | if (!newTrack) continue; | |
151 | cout<<"after refit:"<<endl; | |
152 | param = (AliMUONTrackParam*) newTrack->GetTrackParamAtCluster()->First(); | |
153 | param->Print("FULL"); | |
154 | if (printLevel>1) param->GetCovariances().Print(); | |
155 | cout<<" ----------------------------------------"<<endl; | |
156 | } | |
157 | ||
158 | } | |
159 | ||
160 | // free memory | |
161 | delete newTrackStore; | |
162 | ||
163 | // fill new ESD tree with new tracks | |
164 | esdTracks->Compress(); | |
165 | newESDTree->Fill(); | |
166 | ||
167 | if (printLevel>0) cout<<" ****************************************"<<endl; | |
168 | } | |
169 | ||
170 | // ...timer stop | |
171 | timer.Stop(); | |
172 | ||
173 | // write output ESD tree | |
174 | TFile* newESDFile = TFile::Open(esdFileNameOut, "RECREATE"); | |
175 | newESDFile->SetCompressionLevel(2); | |
176 | newESDTree->Write(); | |
177 | newESDFile->Close(); | |
178 | ||
179 | // free memory | |
180 | esdFile->Close(); | |
181 | delete newESDTree; | |
182 | delete esd; | |
183 | ||
184 | cout<<endl<<"time to refit: R:"<<timer.RealTime()<<" C:"<<timer.CpuTime()<<endl<<endl; | |
185 | } | |
186 | ||
187 | //----------------------------------------------------------------------- | |
188 | void Prepare() | |
189 | { | |
190 | /// Set the geometry, the magnetic field, the mapping and the reconstruction parameters | |
191 | ||
192 | // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) | |
193 | if (!gGeoManager) { | |
194 | AliGeomManager::LoadGeometry("geometry.root"); | |
195 | if (!gGeoManager) { | |
196 | Error("MUONRefit", "getting geometry from file %s failed", "generated/galice.root"); | |
197 | return; | |
198 | } | |
199 | } | |
200 | ||
201 | // set mag field | |
202 | printf("Loading field map...\n"); | |
203 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG); | |
204 | AliTracker::SetFieldMap(field, kFALSE); | |
205 | AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap()); | |
206 | ||
207 | // Load mapping | |
208 | AliCDBManager* man = AliCDBManager::Instance(); | |
209 | man->SetDefaultStorage("local://$ALICE_ROOT"); | |
210 | man->SetRun(0); | |
211 | if ( ! AliMpCDB::LoadDDLStore() ) { | |
212 | Error("MUONRefit","Could not access mapping from OCDB !"); | |
213 | exit(-1); | |
214 | } | |
215 | ||
216 | // set reconstruction parameters | |
217 | AliMUONRecoParam *muonRecoParam = AliMUONRecoParam::GetLowFluxParam(); | |
218 | muonRecoParam->ImproveTracks(kFALSE); | |
219 | muonRecoParam->Print("FULL"); | |
220 | AliRecoParam::Instance()->RegisterRecoParam(muonRecoParam); | |
221 | ||
222 | } | |
223 | ||
224 | //----------------------------------------------------------------------- | |
225 | TTree* GetESDTree(TFile *esdFile) | |
226 | { | |
227 | /// Check that the file is properly open | |
228 | /// Return pointer to the ESD Tree | |
229 | ||
230 | if (!esdFile || !esdFile->IsOpen()) { | |
231 | Error("GetESDTree", "opening ESD file failed"); | |
232 | exit(-1); | |
233 | } | |
234 | ||
235 | TTree* tree = (TTree*) esdFile->Get("esdTree"); | |
236 | if (!tree) { | |
237 | Error("GetESDTree", "no ESD tree found"); | |
238 | exit(-1); | |
239 | } | |
240 | ||
241 | return tree; | |
242 | ||
243 | } | |
244 |