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c9b2f104 | 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 | //_________________________________________________________________________ | |
19 | // Implementation version v1 of the EMCAL particle identifier | |
20 | ||
21 | //*-- Author: Yves Schutz (SUBATECH) | |
22 | // | |
23 | // --- ROOT system --- | |
d64c959b | 24 | //#include "TROOT.h" |
c9b2f104 | 25 | #include "TTree.h" |
c9b2f104 | 26 | #include "TBenchmark.h" |
c9b2f104 | 27 | #include "TSystem.h" |
88cb7938 | 28 | |
29 | // --- Standard library --- | |
30 | ||
31 | // --- AliRoot header files --- | |
c9b2f104 | 32 | #include "AliEMCALPIDv1.h" |
c9b2f104 | 33 | #include "AliEMCALTrackSegment.h" |
c9b2f104 | 34 | #include "AliEMCALRecParticle.h" |
c9b2f104 | 35 | #include "AliEMCALGetter.h" |
88cb7938 | 36 | |
37 | ClassImp( AliEMCALPIDv1) | |
c9b2f104 | 38 | |
39 | //____________________________________________________________________________ | |
40 | AliEMCALPIDv1::AliEMCALPIDv1():AliEMCALPID() | |
41 | { | |
42 | // default ctor | |
88cb7938 | 43 | |
c9b2f104 | 44 | InitParameters() ; |
45 | fDefaultInit = kTRUE ; | |
88cb7938 | 46 | |
47 | } | |
c9b2f104 | 48 | |
88cb7938 | 49 | //____________________________________________________________________________ |
50 | AliEMCALPIDv1::AliEMCALPIDv1(const AliEMCALPIDv1 & pid ):AliEMCALPID(pid) | |
51 | { | |
52 | // ctor | |
53 | InitParameters() ; | |
54 | Init() ; | |
55 | ||
c9b2f104 | 56 | } |
57 | ||
58 | //____________________________________________________________________________ | |
88cb7938 | 59 | AliEMCALPIDv1::AliEMCALPIDv1(const TString alirunFileName, const TString eventFolderName):AliEMCALPID(alirunFileName, eventFolderName) |
c9b2f104 | 60 | { |
61 | //ctor with the indication on where to look for the track segments | |
62 | ||
63 | InitParameters() ; | |
c9b2f104 | 64 | Init() ; |
65 | fDefaultInit = kFALSE ; | |
66 | ||
67 | } | |
68 | ||
69 | //____________________________________________________________________________ | |
70 | AliEMCALPIDv1::~AliEMCALPIDv1() | |
71 | { | |
72 | // dtor | |
c9b2f104 | 73 | } |
74 | ||
75 | //____________________________________________________________________________ | |
76 | const TString AliEMCALPIDv1::BranchName() const | |
77 | { | |
88cb7938 | 78 | |
79 | return GetName() ; | |
c9b2f104 | 80 | } |
81 | ||
82 | //____________________________________________________________________________ | |
83 | void AliEMCALPIDv1::Init() | |
84 | { | |
85 | // Make all memory allocations that are not possible in default constructor | |
86 | // Add the PID task to the list of EMCAL tasks | |
87 | ||
c9b2f104 | 88 | |
88cb7938 | 89 | AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName.Data()) ; |
c9b2f104 | 90 | |
88cb7938 | 91 | if ( !gime->PID() ) |
92 | gime->PostPID(this) ; | |
c9b2f104 | 93 | } |
94 | ||
95 | //____________________________________________________________________________ | |
96 | void AliEMCALPIDv1::InitParameters() | |
97 | { | |
d64c959b | 98 | // Initialize the parameters |
c9b2f104 | 99 | fRecParticlesInRun = 0 ; |
100 | fNEvent = 0 ; | |
101 | fRecParticlesInRun = 0 ; | |
c9b2f104 | 102 | } |
103 | ||
104 | //____________________________________________________________________________ | |
105 | ||
106 | void AliEMCALPIDv1::Exec(Option_t * option) | |
107 | { | |
108 | //Steering method | |
88cb7938 | 109 | |
c9b2f104 | 110 | if(strstr(option,"tim")) |
111 | gBenchmark->Start("EMCALPID"); | |
112 | ||
113 | if(strstr(option,"print")) { | |
114 | Print("") ; | |
115 | return ; | |
116 | } | |
88cb7938 | 117 | AliEMCALGetter * gime = AliEMCALGetter::Instance() ; |
118 | ||
119 | Int_t nevents = gime->MaxEvent() ; | |
c9b2f104 | 120 | Int_t ievent ; |
121 | ||
122 | ||
123 | for(ievent = 0; ievent < nevents; ievent++){ | |
88cb7938 | 124 | gime->Event(ievent,"TR") ; |
125 | if(gime->TrackSegments() && //Skip events, where no track segments made | |
126 | gime->TrackSegments()->GetEntriesFast()) { | |
127 | MakeRecParticles() ; | |
9e5d2067 | 128 | WriteRecParticles(); |
88cb7938 | 129 | if(strstr(option,"deb")) |
130 | PrintRecParticles(option) ; | |
131 | //increment the total number of rec particles per run | |
132 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
133 | } | |
c9b2f104 | 134 | } |
c9b2f104 | 135 | if(strstr(option,"tim")){ |
136 | gBenchmark->Stop("EMCALPID"); | |
137 | Info("Exec", "took %f seconds for PID %f seconds per event", | |
138 | gBenchmark->GetCpuTime("EMCALPID"), | |
139 | gBenchmark->GetCpuTime("EMCALPID")/nevents) ; | |
140 | } | |
88cb7938 | 141 | |
142 | Unload(); | |
c9b2f104 | 143 | } |
144 | ||
145 | //____________________________________________________________________________ | |
146 | void AliEMCALPIDv1::MakeRecParticles(){ | |
147 | ||
148 | // Makes a RecParticle out of a TrackSegment | |
149 | ||
88cb7938 | 150 | AliEMCALGetter * gime = AliEMCALGetter::Instance() ; |
151 | TObjArray * aECARecPoints = gime->ECARecPoints() ; | |
152 | TObjArray * aPRERecPoints = gime->PRERecPoints() ; | |
153 | TObjArray * aHCARecPoints = gime->HCARecPoints() ; | |
c9b2f104 | 154 | TClonesArray * trackSegments = gime->TrackSegments() ; |
88cb7938 | 155 | if ( !aECARecPoints || !aPRERecPoints || !aHCARecPoints || !trackSegments ) { |
c9b2f104 | 156 | Fatal("MakeRecParticles", "RecPoints or TrackSegments not found !") ; |
157 | } | |
158 | TClonesArray * recParticles = gime->RecParticles() ; | |
159 | recParticles->Clear(); | |
160 | ||
161 | TIter next(trackSegments) ; | |
162 | AliEMCALTrackSegment * ts ; | |
163 | Int_t index = 0 ; | |
164 | AliEMCALRecParticle * rp ; | |
165 | while ( (ts = (AliEMCALTrackSegment *)next()) ) { | |
166 | ||
167 | new( (*recParticles)[index] ) AliEMCALRecParticle() ; | |
168 | rp = (AliEMCALRecParticle *)recParticles->At(index) ; | |
169 | rp->SetTrackSegment(index) ; | |
170 | rp->SetIndexInList(index) ; | |
171 | ||
88cb7938 | 172 | AliEMCALTowerRecPoint * eca = 0 ; |
173 | if(ts->GetECAIndex()>=0) | |
174 | eca = dynamic_cast<AliEMCALTowerRecPoint *>(aECARecPoints->At(ts->GetECAIndex())) ; | |
c9b2f104 | 175 | |
88cb7938 | 176 | AliEMCALTowerRecPoint * pre = 0 ; |
c9b2f104 | 177 | if(ts->GetPREIndex()>=0) |
88cb7938 | 178 | pre = dynamic_cast<AliEMCALTowerRecPoint *>(aPRERecPoints->At(ts->GetPREIndex())) ; |
c9b2f104 | 179 | |
88cb7938 | 180 | AliEMCALTowerRecPoint * hca = 0 ; |
181 | if(ts->GetHCAIndex()>=0) | |
182 | hca = dynamic_cast<AliEMCALTowerRecPoint *>(aHCARecPoints->At(ts->GetHCAIndex())) ; | |
c9b2f104 | 183 | |
184 | // Now set type (reconstructed) of the particle | |
185 | ||
186 | // Choose the cluster energy range | |
187 | ||
88cb7938 | 188 | if (!eca) { |
189 | Fatal("MakeRecParticles", "-> emcal(%d) = %d", ts->GetECAIndex(), eca ) ; | |
c9b2f104 | 190 | } |
191 | ||
88cb7938 | 192 | Float_t e = eca->GetEnergy() ; |
c9b2f104 | 193 | |
194 | Float_t lambda[2] ; | |
88cb7938 | 195 | eca->GetElipsAxis(lambda) ; |
c9b2f104 | 196 | |
197 | if((lambda[0]>0.01) && (lambda[1]>0.01)){ | |
198 | // Looking PCA. Define and calculate the data (X), | |
199 | // introduce in the function X2P that gives the components (P). | |
200 | ||
d64c959b | 201 | Float_t spher = 0. ; |
202 | Float_t emaxdtotal = 0. ; | |
c9b2f104 | 203 | |
204 | if((lambda[0]+lambda[1])!=0) | |
d64c959b | 205 | spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]); |
c9b2f104 | 206 | |
d64c959b | 207 | emaxdtotal=eca->GetMaximalEnergy()/eca->GetEnergy(); |
c9b2f104 | 208 | } |
209 | ||
210 | // Float_t time = ecal->GetTime() ; | |
211 | ||
212 | //Set momentum, energy and other parameters | |
88cb7938 | 213 | Float_t enca = e; |
c9b2f104 | 214 | TVector3 dir(0., 0., 0.) ; |
88cb7938 | 215 | dir.SetMag(enca) ; |
216 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),enca) ; | |
c9b2f104 | 217 | rp->SetCalcMass(0); |
218 | rp->Name(); //If photon sets the particle pdg name to gamma | |
219 | rp->SetProductionVertex(0,0,0,0); | |
220 | rp->SetFirstMother(-1); | |
221 | rp->SetLastMother(-1); | |
222 | rp->SetFirstDaughter(-1); | |
223 | rp->SetLastDaughter(-1); | |
224 | rp->SetPolarisation(0,0,0); | |
225 | index++ ; | |
226 | } | |
227 | ||
228 | } | |
229 | ||
230 | //____________________________________________________________________________ | |
9e5d2067 | 231 | void AliEMCALPIDv1:: Print(Option_t * /*option*/) const |
c9b2f104 | 232 | { |
233 | // Print the parameters used for the particle type identification | |
234 | ||
88cb7938 | 235 | Info("Print", "=============== AliEMCALPID1 ================") ; |
236 | printf("Making PID\n"); | |
237 | printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileName.Data() ) ; | |
238 | printf(" Name of parameters file %s\n", fFileNamePar.Data() ) ; | |
c9b2f104 | 239 | } |
240 | ||
241 | //____________________________________________________________________________ | |
242 | void AliEMCALPIDv1::PrintRecParticles(Option_t * option) | |
243 | { | |
244 | // Print table of reconstructed particles | |
245 | ||
88cb7938 | 246 | AliEMCALGetter *gime = AliEMCALGetter::Instance() ; |
c9b2f104 | 247 | |
88cb7938 | 248 | TClonesArray * recParticles = gime->RecParticles() ; |
c9b2f104 | 249 | |
250 | TString message ; | |
251 | message = "\nevent " ; | |
252 | message += gAlice->GetEvNumber() ; | |
253 | message += " found " ; | |
254 | message += recParticles->GetEntriesFast(); | |
255 | message += " RecParticles\n" ; | |
256 | ||
257 | if(strstr(option,"all")) { // printing found TS | |
258 | message += "\n PARTICLE Index \n" ; | |
259 | ||
260 | Int_t index ; | |
261 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { | |
262 | AliEMCALRecParticle * rp = (AliEMCALRecParticle * ) recParticles->At(index) ; | |
263 | message += "\n" ; | |
264 | message += rp->Name().Data() ; | |
265 | message += " " ; | |
266 | message += rp->GetIndexInList() ; | |
267 | message += " " ; | |
268 | message += rp->GetType() ; | |
269 | } | |
270 | } | |
271 | Info("Print", message.Data() ) ; | |
272 | } | |
273 | ||
88cb7938 | 274 | //____________________________________________________________________________ |
275 | void AliEMCALPIDv1::Unload() | |
276 | { | |
d64c959b | 277 | // Unloads RecPoints, TrackSegments and RecParticles from the folder |
88cb7938 | 278 | AliEMCALGetter * gime = AliEMCALGetter::Instance() ; |
279 | gime->EmcalLoader()->UnloadRecPoints() ; | |
280 | gime->EmcalLoader()->UnloadTracks() ; | |
281 | gime->EmcalLoader()->UnloadRecParticles() ; | |
282 | } | |
283 | ||
284 | //____________________________________________________________________________ | |
9e5d2067 | 285 | void AliEMCALPIDv1::WriteRecParticles() |
88cb7938 | 286 | { |
d64c959b | 287 | // Write RecParticles array to file |
88cb7938 | 288 | AliEMCALGetter *gime = AliEMCALGetter::Instance() ; |
289 | ||
290 | TClonesArray * recParticles = gime->RecParticles() ; | |
291 | recParticles->Expand(recParticles->GetEntriesFast() ) ; | |
292 | TTree * treeP = gime->TreeP() ; | |
c9b2f104 | 293 | |
88cb7938 | 294 | |
295 | ||
296 | //First rp | |
297 | Int_t bufferSize = 32000 ; | |
298 | TBranch * rpBranch = treeP->Branch("EMCALRP",&recParticles,bufferSize); | |
299 | rpBranch->SetTitle(BranchName()); | |
300 | ||
301 | rpBranch->Fill() ; | |
302 | ||
303 | gime->WriteRecParticles("OVERWRITE"); | |
304 | gime->WritePID("OVERWRITE"); | |
305 | ||
306 | } | |
c9b2f104 | 307 |