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b91d88dc | 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 v0 of the PHOS particle identifier | |
20 | // Particle identification based on the | |
21 | // - CPV information, | |
22 | // - Preshower information (in MIXT or GPS2 geometries) | |
23 | // - shower width. | |
24 | // | |
25 | // CPV or Preshower clusters should be closer in PHOS plane than fCpvEmcDistance (in cm). | |
26 | // This parameter can be set by method SetCpvtoEmcDistanceCut(Float_t cut) | |
27 | // | |
28 | // One can set desirable ID method by the function SetIdentificationMethod(option). | |
29 | // Presently the following options can be used together or separately : | |
30 | // - "disp": use dispersion cut on shower width | |
31 | // (width can be set by method SetDispersionCut(Float_t cut) | |
32 | // - "ell" : use cut on the axis of the ellipse, drawn around shower | |
33 | // (this cut can be changed by SetShowerProfileCut(char* formula), | |
34 | // where formula - any function of two variables f(lambda[0],lambda[1]). | |
35 | // Shower is considered as EM if f() > 0 ) | |
36 | // One can visualize current cuts calling method PlotDispersionCuts(). | |
37 | // | |
38 | // use case: | |
39 | // root [0] AliPHOSPIDv0 * p1 = new AliPHOSPIDv0("galice.root") | |
40 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
41 | // root [1] p1->SetIdentificationMethod("disp ellipse") | |
42 | // root [2] p1->ExecuteTask() | |
43 | // root [3] AliPHOSPIDv0 * p2 = new AliPHOSPIDv0("galice1.root","ts1") | |
44 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
45 | // // reading headers from file galice1.root and TrackSegments | |
46 | // // with title "ts1" | |
47 | // root [4] p2->SetRecParticlesBranch("rp1") | |
48 | // // set file name for the branch RecParticles | |
49 | // root [5] p2->ExecuteTask("deb all time") | |
50 | // // available options | |
51 | // // "deb" - prints # of reconstructed particles | |
52 | // // "deb all" - prints # and list of RecParticles | |
53 | // // "time" - prints benchmarking results | |
54 | // | |
55 | //*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & | |
56 | // Dmitri Peressounko (SUBATECH & Kurchatov Institute) | |
57 | // Completely redesined by Dmitri Peressounko, March 2001 | |
58 | ||
59 | // --- ROOT system --- | |
60 | #include "TROOT.h" | |
61 | #include "TTree.h" | |
62 | #include "TFile.h" | |
63 | #include "TF2.h" | |
64 | #include "TFormula.h" | |
65 | #include "TCanvas.h" | |
88cb7938 | 66 | #include "TFolder.h" |
67 | #include "TSystem.h" | |
b91d88dc | 68 | #include "TBenchmark.h" |
69 | // --- Standard library --- | |
70 | ||
b91d88dc | 71 | // --- AliRoot header files --- |
72 | ||
88cb7938 | 73 | #include "AliRun.h" |
b91d88dc | 74 | #include "AliGenerator.h" |
88cb7938 | 75 | #include "AliPHOS.h" |
b91d88dc | 76 | #include "AliPHOSPIDv0.h" |
e957fea8 | 77 | #include "AliPHOSEmcRecPoint.h" |
88cb7938 | 78 | #include "AliPHOSClusterizerv1.h" |
b91d88dc | 79 | #include "AliPHOSTrackSegment.h" |
88cb7938 | 80 | #include "AliPHOSTrackSegmentMakerv1.h" |
b91d88dc | 81 | #include "AliPHOSRecParticle.h" |
82 | #include "AliPHOSGeometry.h" | |
88cb7938 | 83 | #include "AliPHOSLoader.h" |
b91d88dc | 84 | |
85 | ClassImp( AliPHOSPIDv0) | |
86 | ||
87 | //____________________________________________________________________________ | |
88 | AliPHOSPIDv0::AliPHOSPIDv0():AliPHOSPID() | |
89 | { | |
90 | // default ctor | |
91 | fFormula = 0 ; | |
92 | fDispersion = 0. ; | |
93 | fCpvEmcDistance = 0 ; | |
94 | fTimeGate = 2.e-9 ; | |
88cb7938 | 95 | fEventFolderName = "" ; |
b91d88dc | 96 | fTrackSegmentsTitle= "" ; |
97 | fRecPointsTitle = "" ; | |
98 | fRecParticlesTitle = "" ; | |
99 | fIDOptions = "dis time" ; | |
100 | fRecParticlesInRun = 0 ; | |
101 | fClusterizer = 0; | |
102 | fTSMaker = 0; | |
103 | } | |
104 | ||
105 | //____________________________________________________________________________ | |
88cb7938 | 106 | AliPHOSPIDv0::AliPHOSPIDv0(const char * evFolderName,const char * name) : AliPHOSPID(evFolderName, name) |
b91d88dc | 107 | { |
108 | //ctor with the indication on where to look for the track segments | |
109 | ||
110 | fFormula = new TFormula("LambdaCuts","(x>1)*(x<2.5)*(y>0)*(y<x)") ; | |
111 | fDispersion = 2.0 ; | |
112 | fCpvEmcDistance = 3.0 ; | |
113 | fTimeGate = 2.e-9 ; | |
114 | ||
88cb7938 | 115 | fEventFolderName = GetTitle() ; |
116 | fTrackSegmentsTitle = GetName(); | |
117 | fRecPointsTitle = GetName(); | |
118 | fRecParticlesTitle = GetName(); | |
b91d88dc | 119 | fIDOptions = "dis time" ; |
120 | ||
b91d88dc | 121 | fRecParticlesInRun = 0 ; |
122 | ||
123 | Init() ; | |
124 | ||
125 | } | |
126 | ||
127 | //____________________________________________________________________________ | |
128 | AliPHOSPIDv0::~AliPHOSPIDv0() | |
129 | { | |
130 | } | |
131 | ||
b91d88dc | 132 | //____________________________________________________________________________ |
133 | Float_t AliPHOSPIDv0::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const | |
134 | { | |
135 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
136 | ||
88cb7938 | 137 | const AliPHOSGeometry * geom = AliPHOSLoader::GetPHOSGeometry() ; |
b91d88dc | 138 | TVector3 vecEmc ; |
139 | TVector3 vecCpv ; | |
140 | ||
141 | emc->GetLocalPosition(vecEmc) ; | |
142 | cpv->GetLocalPosition(vecCpv) ; | |
143 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ | |
144 | ||
145 | // Correct to difference in CPV and EMC position due to different distance to center. | |
146 | // we assume, that particle moves from center | |
147 | Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
148 | Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
149 | dEMC = dEMC / dCPV ; | |
150 | vecCpv = dEMC * vecCpv - vecEmc ; | |
151 | if (Axis == "X") return vecCpv.X(); | |
152 | if (Axis == "Y") return vecCpv.Y(); | |
153 | if (Axis == "Z") return vecCpv.Z(); | |
154 | if (Axis == "R") return vecCpv.Mag(); | |
155 | } | |
156 | ||
157 | return 100000000 ; | |
158 | } | |
159 | ||
160 | //____________________________________________________________________________ | |
161 | void AliPHOSPIDv0::Exec(Option_t * option) | |
162 | { | |
163 | //Steering method | |
164 | ||
165 | if( strcmp(GetName(), "")== 0 ) | |
166 | Init() ; | |
167 | ||
168 | if(strstr(option,"tim")) | |
169 | gBenchmark->Start("PHOSPID"); | |
170 | ||
171 | if(strstr(option,"print")) { | |
88cb7938 | 172 | Print() ; |
b91d88dc | 173 | return ; |
174 | } | |
175 | ||
88cb7938 | 176 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
177 | if(runget == 0x0) | |
178 | { | |
179 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
180 | return; | |
181 | } | |
182 | ||
183 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
184 | if ( gime == 0 ) | |
185 | { | |
186 | Error("Exec","Could not obtain the Loader object !"); | |
187 | return ; | |
188 | } | |
189 | ||
fbf811ec | 190 | if(gime->BranchExists("RecParticles") ) |
191 | return ; | |
192 | ||
b91d88dc | 193 | |
88cb7938 | 194 | Int_t nevents = runget->GetNumberOfEvents() ; //(Int_t) gAlice->TreeE()->GetEntries() ; |
b91d88dc | 195 | |
b91d88dc | 196 | Int_t ievent ; |
b91d88dc | 197 | |
198 | for(ievent = 0; ievent < nevents; ievent++){ | |
88cb7938 | 199 | runget->GetEvent(ievent); |
21cd0c07 | 200 | Info("Exec", "event %d %d %d", ievent, gime->EmcRecPoints(), gime->TrackSegments()) ; |
b91d88dc | 201 | MakeRecParticles() ; |
202 | ||
88cb7938 | 203 | WriteRecParticles(); |
b91d88dc | 204 | |
205 | if(strstr(option,"deb")) | |
206 | PrintRecParticles(option) ; | |
207 | ||
208 | //increment the total number of rec particles per run | |
209 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
210 | ||
211 | } | |
212 | ||
213 | if(strstr(option,"tim")){ | |
214 | gBenchmark->Stop("PHOSPID"); | |
21cd0c07 | 215 | Info("Exec", "took %f seconds for PID %f seconds per event", |
216 | gBenchmark->GetCpuTime("PHOSPID"), gBenchmark->GetCpuTime("PHOSPID")/nevents) ; | |
b91d88dc | 217 | } |
218 | ||
219 | } | |
220 | //____________________________________________________________________________ | |
221 | void AliPHOSPIDv0::Init() | |
222 | { | |
223 | // Make all memory allocations that are not possible in default constructor | |
224 | // Add the PID task to the list of PHOS tasks | |
225 | ||
88cb7938 | 226 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
227 | if(runget == 0x0) | |
228 | { | |
229 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
230 | return; | |
231 | } | |
b91d88dc | 232 | |
88cb7938 | 233 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); |
234 | if ( gime == 0 ) | |
235 | { | |
236 | Error("Exec","Could not obtain the Loader object !"); | |
237 | return ; | |
238 | } | |
b91d88dc | 239 | |
88cb7938 | 240 | gime->PostPID(this); |
241 | gime->LoadRecParticles("UPDATE"); | |
b91d88dc | 242 | |
243 | } | |
244 | ||
245 | //____________________________________________________________________________ | |
246 | void AliPHOSPIDv0::MakeRecParticles(){ | |
247 | ||
b91d88dc | 248 | TString taskName(GetName()) ; |
249 | taskName.Remove(taskName.Index(Version())-1) ; | |
250 | ||
88cb7938 | 251 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
252 | if(runget == 0x0) | |
253 | { | |
254 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
255 | return; | |
256 | } | |
257 | ||
258 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
259 | if ( gime == 0 ) | |
260 | { | |
261 | Error("Exec","Could not obtain the Loader object !"); | |
262 | return ; | |
263 | } | |
264 | ||
265 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; | |
266 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
267 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
268 | TClonesArray * recParticles = gime->RecParticles() ; | |
269 | ||
b91d88dc | 270 | recParticles->Clear(); |
271 | ||
272 | TIter next(trackSegments) ; | |
273 | AliPHOSTrackSegment * ts ; | |
274 | Int_t index = 0 ; | |
275 | AliPHOSRecParticle * rp ; | |
276 | ||
277 | Bool_t ellips = fIDOptions.Contains("ell",TString::kIgnoreCase ) ; | |
278 | Bool_t disp = fIDOptions.Contains("dis",TString::kIgnoreCase ) ; | |
279 | Bool_t time = fIDOptions.Contains("tim",TString::kIgnoreCase ) ; | |
280 | ||
281 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { | |
282 | ||
283 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; | |
284 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
a278df55 | 285 | rp->SetTrackSegment(index) ; |
b91d88dc | 286 | rp->SetIndexInList(index) ; |
287 | ||
288 | AliPHOSEmcRecPoint * emc = 0 ; | |
289 | if(ts->GetEmcIndex()>=0) | |
290 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; | |
291 | ||
292 | AliPHOSRecPoint * cpv = 0 ; | |
293 | if(ts->GetCpvIndex()>=0) | |
294 | cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; | |
295 | ||
296 | //set momentum and energy first | |
297 | Float_t e = emc->GetEnergy() ; | |
298 | TVector3 dir = GetMomentumDirection(emc,cpv) ; | |
299 | dir.SetMag(e) ; | |
300 | ||
301 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ; | |
302 | rp->SetCalcMass(0); | |
303 | ||
304 | //now set type (reconstructed) of the particle | |
305 | Int_t showerprofile = 0; // 0 narrow and 1 wide | |
306 | ||
307 | if(ellips){ | |
308 | Float_t lambda[2] ; | |
309 | emc->GetElipsAxis(lambda) ; | |
310 | if(fFormula->Eval(lambda[0],lambda[1]) <= 0 ) | |
311 | showerprofile = 1 ; // not narrow | |
312 | } | |
313 | ||
314 | if(disp) | |
315 | if(emc->GetDispersion() > fDispersion ) | |
316 | showerprofile = 1 ; // not narrow | |
317 | ||
318 | Int_t slow = 0 ; | |
319 | if(time) | |
320 | if(emc->GetTime() > fTimeGate ) | |
321 | slow = 0 ; | |
322 | ||
323 | // Looking at the CPV detector | |
324 | Int_t cpvdetector= 0 ; //1 hit and 0 no hit | |
325 | if(cpv) | |
326 | if(GetDistance(emc, cpv, "R") < fCpvEmcDistance) | |
327 | cpvdetector = 1 ; | |
328 | ||
329 | Int_t type = showerprofile + 2 * slow + 4 * cpvdetector ; | |
330 | rp->SetType(type) ; | |
331 | rp->SetProductionVertex(0,0,0,0); | |
332 | rp->SetFirstMother(-1); | |
333 | rp->SetLastMother(-1); | |
334 | rp->SetFirstDaughter(-1); | |
335 | rp->SetLastDaughter(-1); | |
336 | rp->SetPolarisation(0,0,0); | |
337 | index++ ; | |
338 | } | |
339 | ||
340 | } | |
341 | ||
342 | //____________________________________________________________________________ | |
88cb7938 | 343 | void AliPHOSPIDv0:: Print() const |
b91d88dc | 344 | { |
345 | // Print the parameters used for the particle type identification | |
21cd0c07 | 346 | TString message ; |
88cb7938 | 347 | message = "=============== AliPHOSPIDv0 ================\n" ; |
21cd0c07 | 348 | message += "Making PID\n" ; |
349 | message += " Headers file: %s\n" ; | |
350 | message += " RecPoints branch title: %s\n" ; | |
351 | message += " TrackSegments Branch title: %s\n" ; | |
352 | message += " RecParticles Branch title %s\n" ; | |
353 | message += "with parameters:\n" ; | |
354 | message += " Maximal EMC - CPV distance (cm) %f\n" ; | |
355 | Info("Print", message.Data(), | |
88cb7938 | 356 | GetTitle(), |
21cd0c07 | 357 | fRecPointsTitle.Data(), |
358 | fTrackSegmentsTitle.Data(), | |
359 | fRecParticlesTitle.Data(), | |
360 | fCpvEmcDistance ); | |
361 | ||
362 | if(fIDOptions.Contains("dis",TString::kIgnoreCase )) | |
363 | Info("Print", " dispersion cut %f", fDispersion ) ; | |
364 | if(fIDOptions.Contains("ell",TString::kIgnoreCase )) | |
365 | Info("Print", " Eliptic cuts function: %s", fFormula->GetTitle() ) ; | |
366 | if(fIDOptions.Contains("tim",TString::kIgnoreCase )) | |
367 | Info("Print", " Time Gate used: %f", fTimeGate) ; | |
b91d88dc | 368 | } |
369 | ||
370 | //____________________________________________________________________________ | |
8e8eae84 | 371 | void AliPHOSPIDv0::SetShowerProfileCut(const char * formula) |
b91d88dc | 372 | { |
373 | //set shape of the cut on the axis of ellipce, drown around shouer | |
374 | //shower considered "narrow" if Formula(lambda[0],lambda[1]) > 0. | |
375 | if(fFormula) | |
376 | delete fFormula; | |
377 | fFormula = new TFormula("Lambda Cut",formula) ; | |
378 | } | |
379 | //____________________________________________________________________________ | |
88cb7938 | 380 | void AliPHOSPIDv0::WriteRecParticles() |
b91d88dc | 381 | { |
382 | ||
88cb7938 | 383 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
384 | if(runget == 0x0) | |
385 | { | |
386 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
387 | return; | |
388 | } | |
389 | ||
390 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
391 | if ( gime == 0 ) | |
392 | { | |
393 | Error("Exec","Could not obtain the Loader object !"); | |
394 | return ; | |
395 | } | |
396 | ||
397 | TClonesArray * recParticles = gime->RecParticles() ; | |
b91d88dc | 398 | recParticles->Expand(recParticles->GetEntriesFast() ) ; |
399 | ||
88cb7938 | 400 | TTree * treeR = gime->TreeR(); |
b91d88dc | 401 | |
fbf811ec | 402 | if(!treeR){ |
88cb7938 | 403 | gime->MakeTree("R"); |
404 | treeR = gime->TreeR() ; | |
fbf811ec | 405 | } |
b91d88dc | 406 | |
407 | //First rp | |
408 | Int_t bufferSize = 32000 ; | |
fbf811ec | 409 | TBranch * rpBranch = treeR->Branch("PHOSRP",&recParticles,bufferSize); |
b91d88dc | 410 | rpBranch->SetTitle(fRecParticlesTitle); |
b91d88dc | 411 | |
412 | //second, pid | |
413 | Int_t splitlevel = 0 ; | |
414 | AliPHOSPIDv0 * pid = this ; | |
fbf811ec | 415 | TBranch * pidBranch = treeR->Branch("AliPHOSPID","AliPHOSPIDv0",&pid,bufferSize,splitlevel); |
b91d88dc | 416 | pidBranch->SetTitle(fRecParticlesTitle.Data()); |
b91d88dc | 417 | |
418 | rpBranch->Fill() ; | |
419 | pidBranch->Fill() ; | |
88cb7938 | 420 | |
421 | gime->WriteRecParticles("OVERWRITE"); | |
422 | gime->WritePID("OVERWRITE"); | |
423 | ||
b91d88dc | 424 | } |
425 | ||
426 | //____________________________________________________________________________ | |
427 | void AliPHOSPIDv0::PlotDispersionCuts()const | |
428 | { | |
429 | // produces a plot of the dispersion cut | |
430 | TCanvas* lambdas = new TCanvas("lambdas","Cuts on the ellipse axis",200,10,700,500); | |
431 | ||
432 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ){ | |
433 | TF2 * ell = new TF2("Elliptic Cuts",fFormula->GetName(),0,3,0,3) ; | |
434 | ell->SetMinimum(0.0000001) ; | |
435 | ell->SetMaximum(0.001) ; | |
436 | ell->SetLineStyle(1) ; | |
437 | ell->SetLineWidth(2) ; | |
438 | ell->Draw() ; | |
439 | } | |
440 | ||
441 | if( fIDOptions.Contains("dis",TString::kIgnoreCase ) ){ | |
442 | TF2 * dsp = new TF2("dispersion","(y<x)*(x*x+y*y < [0]*[0])",0,3,0,3) ; | |
443 | dsp->SetParameter(0,fDispersion) ; | |
444 | dsp->SetMinimum(0.0000001) ; | |
445 | dsp->SetMaximum(0.001) ; | |
446 | dsp->SetLineStyle(1) ; | |
447 | dsp->SetLineColor(2) ; | |
448 | dsp->SetLineWidth(2) ; | |
449 | dsp->SetNpx(200) ; | |
450 | dsp->SetNpy(200) ; | |
451 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ) | |
452 | dsp->Draw("same") ; | |
453 | else | |
454 | dsp->Draw() ; | |
455 | } | |
456 | lambdas->Update(); | |
457 | } | |
458 | ||
459 | //____________________________________________________________________________ | |
8f2a3661 | 460 | TVector3 AliPHOSPIDv0::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * )const |
b91d88dc | 461 | { |
462 | // Calculates the momentum direction: | |
463 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
464 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints | |
465 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
466 | // in case 1. | |
467 | ||
468 | TVector3 dir(0,0,0) ; | |
469 | ||
470 | TVector3 emcglobalpos ; | |
471 | TMatrix dummy ; | |
472 | ||
473 | emc->GetGlobalPosition(emcglobalpos, dummy) ; | |
474 | ||
475 | ||
476 | // The following commented code becomes valid once the PPSD provides | |
477 | // a reasonable position resolution, at least as good as EMC ! | |
478 | // TVector3 ppsdlglobalpos ; | |
479 | // TVector3 ppsduglobalpos ; | |
480 | // if( fPpsdLowRecPoint ){ // certainly a photon that has concerted | |
481 | // fPpsdLowRecPoint->GetGlobalPosition(ppsdlglobalpos, mdummy) ; | |
482 | // dir = emcglobalpos - ppsdlglobalpos ; | |
483 | // if( fPpsdUpRecPoint ){ // not looks like a charged | |
484 | // fPpsdUpRecPoint->GetGlobalPosition(ppsduglobalpos, mdummy) ; | |
485 | // dir = ( dir + emcglobalpos - ppsduglobalpos ) * 0.5 ; | |
486 | // } | |
487 | // } | |
488 | // else { // looks like a neutral | |
489 | // dir = emcglobalpos ; | |
490 | // } | |
491 | ||
492 | dir = emcglobalpos ; | |
493 | dir.SetZ( -dir.Z() ) ; // why ? | |
494 | dir.SetMag(1.) ; | |
495 | ||
496 | //account correction to the position of IP | |
497 | Float_t xo,yo,zo ; //Coordinates of the origin | |
498 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; | |
499 | TVector3 origin(xo,yo,zo); | |
500 | dir = dir - origin ; | |
501 | ||
502 | return dir ; | |
503 | } | |
504 | //____________________________________________________________________________ | |
505 | void AliPHOSPIDv0::PrintRecParticles(Option_t * option) | |
506 | { | |
507 | // Print table of reconstructed particles | |
508 | ||
88cb7938 | 509 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
510 | if(runget == 0x0) | |
511 | { | |
512 | Error("WriteRecParticles","Can not find run getter in event folder \"%s\"",GetTitle()); | |
513 | return; | |
514 | } | |
515 | ||
516 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
517 | if ( gime == 0 ) | |
518 | { | |
519 | Error("WriteRecParticles","Could not obtain the Loader object !"); | |
520 | return ; | |
521 | } | |
b91d88dc | 522 | |
523 | TString taskName(GetName()) ; | |
524 | taskName.Remove(taskName.Index(Version())-1) ; | |
88cb7938 | 525 | TClonesArray * recParticles = gime->RecParticles() ; |
b91d88dc | 526 | |
21cd0c07 | 527 | TString message ; |
528 | message = "event %d\n" ; | |
529 | message += " found %d RecParticles\n" ; | |
530 | Info("PrintRecParticles", message.Data(), gAlice->GetEvNumber(), recParticles->GetEntriesFast() ) ; | |
531 | ||
b91d88dc | 532 | if(strstr(option,"all")) { // printing found TS |
21cd0c07 | 533 | Info("PrintRecParticles"," PARTICLE Index \n" ) ; |
88cb7938 | 534 | |
b91d88dc | 535 | Int_t index ; |
536 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { | |
537 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; | |
538 | ||
539 | Text_t particle[11]; | |
540 | switch(rp->GetType()) { | |
541 | case AliPHOSFastRecParticle::kNEUTRALEMFAST: | |
542 | strcpy( particle, "NEUTRAL EM FAST"); | |
543 | break; | |
544 | case AliPHOSFastRecParticle::kNEUTRALHAFAST: | |
545 | strcpy(particle, "NEUTRAL HA FAST"); | |
546 | break; | |
547 | case AliPHOSFastRecParticle::kNEUTRALEMSLOW: | |
548 | strcpy(particle, "NEUTRAL EM SLOW"); | |
549 | break ; | |
550 | case AliPHOSFastRecParticle::kNEUTRALHASLOW: | |
551 | strcpy(particle, "NEUTRAL HA SLOW"); | |
552 | break ; | |
553 | case AliPHOSFastRecParticle::kCHARGEDEMFAST: | |
554 | strcpy(particle, "CHARGED EM FAST") ; | |
555 | break ; | |
556 | case AliPHOSFastRecParticle::kCHARGEDHAFAST: | |
557 | strcpy(particle, "CHARGED HA FAST") ; | |
558 | break ; | |
559 | case AliPHOSFastRecParticle::kCHARGEDEMSLOW: | |
560 | strcpy(particle, "CHARGEDEMSLOW") ; | |
561 | break ; | |
562 | case AliPHOSFastRecParticle::kCHARGEDHASLOW: | |
563 | strcpy(particle, "CHARGED HA SLOW") ; | |
564 | break ; | |
565 | } | |
566 | ||
567 | // Int_t * primaries; | |
568 | // Int_t nprimaries; | |
569 | // primaries = rp->GetPrimaries(nprimaries); | |
570 | ||
21cd0c07 | 571 | Info("PrintRecParticles", " %s %d\n", particle, rp->GetIndexInList()) ; |
b91d88dc | 572 | } |
21cd0c07 | 573 | } |
b91d88dc | 574 | } |
575 | ||
576 | ||
577 |