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d15a28e7 | 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 | ||
b2a60966 | 16 | /* $Id$ */ |
17 | ||
d15a28e7 | 18 | //_________________________________________________________________________ |
a3dfe79c | 19 | //*-- |
dfe0be07 | 20 | //*-- Yves Schutz (SUBATECH) |
21 | // Reconstruction class. Redesigned from the old AliReconstructionner class and | |
22 | // derived from STEER/AliReconstructor. | |
23 | // | |
d15a28e7 | 24 | // --- ROOT system --- |
25 | ||
d15a28e7 | 26 | // --- Standard library --- |
364de5c6 | 27 | |
d15a28e7 | 28 | // --- AliRoot header files --- |
35293055 | 29 | #include "AliESD.h" |
f444a19f | 30 | #include "AliPHOSReconstructor.h" |
7acf6008 | 31 | #include "AliPHOSClusterizerv1.h" |
7acf6008 | 32 | #include "AliPHOSTrackSegmentMakerv1.h" |
33 | #include "AliPHOSPIDv1.h" | |
35293055 | 34 | #include "AliPHOSGetter.h" |
23904d16 | 35 | #include "AliPHOSTracker.h" |
d22dd3b4 | 36 | #include "AliRawReader.h" |
e957fea8 | 37 | |
2e60107f | 38 | |
f444a19f | 39 | ClassImp(AliPHOSReconstructor) |
d15a28e7 | 40 | |
2e60107f | 41 | Bool_t AliPHOSReconstructor::fgDebug = kFALSE ; |
42 | ||
d15a28e7 | 43 | //____________________________________________________________________________ |
2e60107f | 44 | AliPHOSReconstructor::AliPHOSReconstructor() |
d15a28e7 | 45 | { |
b2a60966 | 46 | // ctor |
0379a13e | 47 | |
6ad0bfa0 | 48 | } |
49 | ||
0379a13e | 50 | //____________________________________________________________________________ |
51 | AliPHOSReconstructor::~AliPHOSReconstructor() | |
52 | { | |
53 | // dtor | |
54 | ||
55 | } | |
7acf6008 | 56 | |
7acf6008 | 57 | //____________________________________________________________________________ |
772634e0 | 58 | void AliPHOSReconstructor::Reconstruct(AliRunLoader* runLoader) const |
35293055 | 59 | { |
dfe0be07 | 60 | // method called by AliReconstruction; |
61 | // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track | |
62 | // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by | |
63 | // the global tracking. | |
64 | ||
65 | TString headerFile(runLoader->GetFileName()) ; | |
9ee4fde2 | 66 | TString branchName(runLoader->GetEventFolder()->GetName()) ; |
a68156e6 | 67 | |
68 | AliPHOSClusterizerv1 clu(headerFile, branchName); | |
69 | clu.SetEventRange(0, -1) ; // do all the events | |
70 | if ( Debug() ) | |
71 | clu.ExecuteTask("deb all") ; | |
72 | else | |
73 | clu.ExecuteTask("") ; | |
74 | ||
75 | } | |
76 | ||
77 | //____________________________________________________________________________ | |
772634e0 | 78 | void AliPHOSReconstructor::Reconstruct(AliRunLoader* runLoader, AliRawReader* rawreader) const |
a68156e6 | 79 | { |
80 | // method called by AliReconstruction; | |
81 | // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track | |
82 | // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by | |
83 | // the global tracking. | |
84 | // Here we reconstruct from Raw Data | |
772634e0 | 85 | |
a68156e6 | 86 | rawreader->Reset() ; |
87 | TString headerFile(runLoader->GetFileName()) ; | |
88 | TString branchName(runLoader->GetEventFolder()->GetName()) ; | |
35293055 | 89 | |
dfe0be07 | 90 | AliPHOSClusterizerv1 clu(headerFile, branchName); |
f88e2313 | 91 | clu.SetEventRange(0, -1) ; // do all the events |
d22dd3b4 | 92 | clu.SetRawReader(rawreader); |
f5eaa851 | 93 | |
94 | TString option = GetOption(); | |
95 | if (option.Contains("OldRCUFormat")) | |
96 | clu.SetOldRCUFormat(kTRUE); | |
97 | ||
dfe0be07 | 98 | if ( Debug() ) |
99 | clu.ExecuteTask("deb all") ; | |
100 | else | |
d22dd3b4 | 101 | clu.ExecuteTask("") ; |
0379a13e | 102 | |
35293055 | 103 | } |
7acf6008 | 104 | |
7acf6008 | 105 | //____________________________________________________________________________ |
dfe0be07 | 106 | void AliPHOSReconstructor::FillESD(AliRunLoader* runLoader, AliESD* esd) const |
7acf6008 | 107 | { |
23904d16 | 108 | // This function creates AliESDtracks from AliPHOSRecParticles |
109 | // and | |
110 | // writes them to the ESD | |
bf72996e | 111 | |
23904d16 | 112 | Int_t eventNumber = runLoader->GetEventNumber() ; |
dfe0be07 | 113 | |
25ed816e | 114 | AliPHOSGetter *gime = AliPHOSGetter::Instance(); |
115 | gime->Event(eventNumber, "DRTP") ; | |
116 | TClonesArray *recParticles = gime->RecParticles(); | |
dfe0be07 | 117 | Int_t nOfRecParticles = recParticles->GetEntries(); |
25ed816e | 118 | |
85c60a8e | 119 | esd->SetNumberOfPHOSClusters(nOfRecParticles) ; |
dd7ee508 | 120 | esd->SetFirstPHOSCluster(esd->GetNumberOfCaloClusters()) ; |
121 | ||
122 | AliDebug(2,Form("%d digits and %d rec. particles in event %d, option %s",gime->Digits()->GetEntries(),nOfRecParticles,eventNumber,GetOption())); | |
8013c27e | 123 | |
dfe0be07 | 124 | for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) { |
125 | AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart)); | |
126 | if (Debug()) | |
127 | rp->Print(); | |
25ed816e | 128 | // Get track segment and EMC rec.point associated with this rec.particle |
129 | AliPHOSTrackSegment *ts = gime->TrackSegment(rp->GetPHOSTSIndex()); | |
130 | AliPHOSEmcRecPoint *emcRP = gime->EmcRecPoint(ts->GetEmcIndex()); | |
131 | AliESDCaloCluster *ec = new AliESDCaloCluster() ; | |
132 | ||
85c60a8e | 133 | // fills the ESDCaloCluster |
134 | Float_t xyz[3]; | |
8013c27e | 135 | for (Int_t ixyz=0; ixyz<3; ixyz++) |
136 | xyz[ixyz] = rp->GetPos()[ixyz]; | |
dd7ee508 | 137 | |
138 | AliDebug(2,Form("Global position xyz=(%f,%f,%f)",xyz[0],xyz[1],xyz[2])); | |
139 | ||
25ed816e | 140 | Int_t digitMult = emcRP->GetDigitsMultiplicity(); |
141 | Int_t *digitsList = emcRP->GetDigitsList(); | |
142 | UShort_t *amplList = new UShort_t[digitMult]; | |
143 | UShort_t *timeList = new UShort_t[digitMult]; | |
144 | UShort_t *digiList = new UShort_t[digitMult]; | |
145 | ||
146 | // Convert Float_t* and Int_t* to UShort_t* to save memory | |
147 | for (Int_t iDigit=0; iDigit<digitMult; iDigit++) { | |
148 | AliPHOSDigit *digit = gime->Digit(digitsList[iDigit]); | |
ae3e6f29 | 149 | amplList[iDigit] = (UShort_t)(digit->GetEnergy()*500); // Energy in units of GeV/500 |
150 | timeList[iDigit] = (UShort_t)(digit->GetTime()*1e9*100); // time in units of 0.01 ns | |
25ed816e | 151 | digiList[iDigit] = (UShort_t)(digit->GetId()); |
152 | } | |
34541ea2 | 153 | |
154 | ec->SetPHOS(kTRUE); | |
25ed816e | 155 | ec->SetGlobalPosition(xyz); //rec.point position in MARS |
156 | ec->SetClusterEnergy(rp->Energy()); //total particle energy | |
157 | ec->SetClusterDisp(emcRP->GetDispersion()); //cluster dispersion | |
158 | ec->SetPid (rp->GetPID()) ; //array of particle identification | |
159 | ec->SetPrimaryIndex (rp->GetPrimaryIndex());//index of primary particle (for simulations) | |
160 | ec->SetM02(emcRP->GetM2x()) ; //second moment M2x | |
161 | ec->SetM20(emcRP->GetM2z()) ; //second moment M2z | |
162 | ec->SetNExMax(emcRP->GetNExMax()); //number of local maxima | |
163 | ec->SetNumberOfDigits(digitMult); //digit multiplicity | |
164 | ec->SetDigitAmplitude(amplList); //energies in 1/500 of GeV | |
165 | ec->SetDigitTime(timeList); //times in 1/100 on ns | |
166 | ec->SetDigitIndex(digiList); //abs id of the cell | |
167 | ec->SetEmcCpvDistance(-1); //not yet implemented | |
168 | ec->SetClusterChi2(-1); //not yet implemented | |
169 | ec->SetM11(-1) ; //not yet implemented | |
170 | ||
dfe0be07 | 171 | // add the track to the esd object |
85c60a8e | 172 | esd->AddCaloCluster(ec); |
dd7ee508 | 173 | delete ec; |
174 | } | |
175 | } | |
176 | ||
34541ea2 | 177 | //____________________________________________________________________________ |
dd7ee508 | 178 | void AliPHOSReconstructor::FillESD(AliRunLoader* runLoader, |
179 | AliRawReader* rawReader, AliESD* esd) const | |
180 | { | |
181 | //This function creates AliESDtracks from AliPHOSRecParticles | |
182 | //and writes them to the ESD in the case of raw data reconstruction. | |
183 | ||
184 | Int_t eventNumber = runLoader->GetEventNumber() ; | |
185 | ||
dd7ee508 | 186 | AliPHOSGetter *gime = AliPHOSGetter::Instance(); |
cbddd97f | 187 | gime->Event(eventNumber, "DRTP") ; |
dd7ee508 | 188 | |
189 | TClonesArray *recParticles = gime->RecParticles(); | |
190 | Int_t nOfRecParticles = recParticles->GetEntries(); | |
191 | ||
192 | esd->SetNumberOfPHOSClusters(nOfRecParticles) ; | |
193 | esd->SetFirstPHOSCluster(esd->GetNumberOfCaloClusters()) ; | |
194 | ||
195 | AliDebug(2,Form("%d digits and %d rec. particles in event %d, option %s",gime->Digits()->GetEntries(),nOfRecParticles,eventNumber,GetOption())); | |
196 | ||
197 | for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) { | |
198 | AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart)); | |
199 | ||
200 | if(rp) { | |
201 | Float_t xyz[3]; | |
202 | for (Int_t ixyz=0; ixyz<3; ixyz++) | |
203 | xyz[ixyz] = rp->GetPos()[ixyz]; | |
204 | ||
205 | AliDebug(2,Form("Global position xyz=(%f,%f,%f)",xyz[0],xyz[1],xyz[2])); | |
206 | ||
207 | AliPHOSTrackSegment *ts = gime->TrackSegment(rp->GetPHOSTSIndex()); | |
208 | AliPHOSEmcRecPoint *emcRP = gime->EmcRecPoint(ts->GetEmcIndex()); | |
209 | AliESDCaloCluster *ec = new AliESDCaloCluster() ; | |
210 | ||
211 | Int_t digitMult = emcRP->GetDigitsMultiplicity(); | |
212 | Int_t *digitsList = emcRP->GetDigitsList(); | |
213 | UShort_t *amplList = new UShort_t[digitMult]; | |
214 | UShort_t *digiList = new UShort_t[digitMult]; | |
215 | ||
216 | // Convert Float_t* and Int_t* to UShort_t* to save memory | |
217 | for (Int_t iDigit=0; iDigit<digitMult; iDigit++) { | |
218 | AliPHOSDigit *digit = gime->Digit(digitsList[iDigit]); | |
219 | if(!digit) { | |
220 | AliFatal(Form("Digit not found at the expected position %d!",iDigit)); | |
221 | } | |
222 | else { | |
cbddd97f | 223 | amplList[iDigit] = (UShort_t)digit->GetEnergy(); |
dd7ee508 | 224 | digiList[iDigit] = (UShort_t)(digit->GetId()); |
225 | } | |
226 | } | |
227 | ||
34541ea2 | 228 | ec->SetPHOS(kTRUE); |
dd7ee508 | 229 | ec->SetGlobalPosition(xyz); //rec.point position in MARS |
230 | ec->SetClusterEnergy(rp->Energy()); //total particle energy | |
231 | ec->SetClusterDisp(emcRP->GetDispersion()); //cluster dispersion | |
232 | ec->SetPid (rp->GetPID()) ; //array of particle identification | |
233 | ec->SetM02(emcRP->GetM2x()) ; //second moment M2x | |
234 | ec->SetM20(emcRP->GetM2z()) ; //second moment M2z | |
235 | ec->SetNExMax(emcRP->GetNExMax()); //number of local maxima | |
236 | ec->SetNumberOfDigits(digitMult); //digit multiplicity | |
cbddd97f | 237 | ec->SetDigitAmplitude(amplList); //digit energies |
dd7ee508 | 238 | ec->SetDigitIndex(digiList); //abs id of the cell |
239 | ec->SetEmcCpvDistance(-1); //not yet implemented | |
240 | ec->SetClusterChi2(-1); //not yet implemented | |
241 | ec->SetM11(-1) ; //not yet implemented | |
242 | ||
243 | // add the track to the esd object | |
244 | esd->AddCaloCluster(ec); | |
245 | delete ec; | |
246 | ||
247 | } | |
248 | } | |
249 | ||
250 | ||
d7d3b67b | 251 | } |
23904d16 | 252 | |
253 | AliTracker* AliPHOSReconstructor::CreateTracker(AliRunLoader* runLoader) const | |
254 | { | |
255 | // creates the PHOS tracker | |
256 | if (!runLoader) return NULL; | |
257 | return new AliPHOSTracker(runLoader); | |
258 | } | |
259 |