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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 --- | |
b91d88dc | 60 | #include "TTree.h" |
b91d88dc | 61 | #include "TF2.h" |
62 | #include "TFormula.h" | |
63 | #include "TCanvas.h" | |
7f78a025 | 64 | |
b91d88dc | 65 | #include "TBenchmark.h" |
66 | // --- Standard library --- | |
67 | ||
b91d88dc | 68 | // --- AliRoot header files --- |
69 | ||
88cb7938 | 70 | #include "AliRun.h" |
b91d88dc | 71 | #include "AliGenerator.h" |
b91d88dc | 72 | #include "AliPHOSPIDv0.h" |
e957fea8 | 73 | #include "AliPHOSEmcRecPoint.h" |
b91d88dc | 74 | #include "AliPHOSTrackSegment.h" |
b91d88dc | 75 | #include "AliPHOSRecParticle.h" |
76 | #include "AliPHOSGeometry.h" | |
88cb7938 | 77 | #include "AliPHOSLoader.h" |
b91d88dc | 78 | |
79 | ClassImp( AliPHOSPIDv0) | |
80 | ||
81 | //____________________________________________________________________________ | |
82 | AliPHOSPIDv0::AliPHOSPIDv0():AliPHOSPID() | |
83 | { | |
84 | // default ctor | |
85 | fFormula = 0 ; | |
86 | fDispersion = 0. ; | |
87 | fCpvEmcDistance = 0 ; | |
88 | fTimeGate = 2.e-9 ; | |
88cb7938 | 89 | fEventFolderName = "" ; |
b91d88dc | 90 | fTrackSegmentsTitle= "" ; |
91 | fRecPointsTitle = "" ; | |
92 | fRecParticlesTitle = "" ; | |
93 | fIDOptions = "dis time" ; | |
94 | fRecParticlesInRun = 0 ; | |
95 | fClusterizer = 0; | |
96 | fTSMaker = 0; | |
97 | } | |
98 | ||
99 | //____________________________________________________________________________ | |
88cb7938 | 100 | AliPHOSPIDv0::AliPHOSPIDv0(const char * evFolderName,const char * name) : AliPHOSPID(evFolderName, name) |
b91d88dc | 101 | { |
102 | //ctor with the indication on where to look for the track segments | |
103 | ||
104 | fFormula = new TFormula("LambdaCuts","(x>1)*(x<2.5)*(y>0)*(y<x)") ; | |
105 | fDispersion = 2.0 ; | |
106 | fCpvEmcDistance = 3.0 ; | |
107 | fTimeGate = 2.e-9 ; | |
108 | ||
88cb7938 | 109 | fEventFolderName = GetTitle() ; |
110 | fTrackSegmentsTitle = GetName(); | |
111 | fRecPointsTitle = GetName(); | |
112 | fRecParticlesTitle = GetName(); | |
b91d88dc | 113 | fIDOptions = "dis time" ; |
114 | ||
b91d88dc | 115 | fRecParticlesInRun = 0 ; |
116 | ||
117 | Init() ; | |
118 | ||
119 | } | |
120 | ||
121 | //____________________________________________________________________________ | |
122 | AliPHOSPIDv0::~AliPHOSPIDv0() | |
123 | { | |
124 | } | |
125 | ||
b91d88dc | 126 | //____________________________________________________________________________ |
127 | Float_t AliPHOSPIDv0::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const | |
128 | { | |
129 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
130 | ||
88cb7938 | 131 | const AliPHOSGeometry * geom = AliPHOSLoader::GetPHOSGeometry() ; |
b91d88dc | 132 | TVector3 vecEmc ; |
133 | TVector3 vecCpv ; | |
134 | ||
135 | emc->GetLocalPosition(vecEmc) ; | |
136 | cpv->GetLocalPosition(vecCpv) ; | |
137 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ | |
138 | ||
139 | // Correct to difference in CPV and EMC position due to different distance to center. | |
140 | // we assume, that particle moves from center | |
141 | Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
142 | Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
143 | dEMC = dEMC / dCPV ; | |
144 | vecCpv = dEMC * vecCpv - vecEmc ; | |
145 | if (Axis == "X") return vecCpv.X(); | |
146 | if (Axis == "Y") return vecCpv.Y(); | |
147 | if (Axis == "Z") return vecCpv.Z(); | |
148 | if (Axis == "R") return vecCpv.Mag(); | |
149 | } | |
150 | ||
151 | return 100000000 ; | |
152 | } | |
153 | ||
154 | //____________________________________________________________________________ | |
155 | void AliPHOSPIDv0::Exec(Option_t * option) | |
156 | { | |
157 | //Steering method | |
158 | ||
159 | if( strcmp(GetName(), "")== 0 ) | |
160 | Init() ; | |
161 | ||
162 | if(strstr(option,"tim")) | |
163 | gBenchmark->Start("PHOSPID"); | |
164 | ||
165 | if(strstr(option,"print")) { | |
88cb7938 | 166 | Print() ; |
b91d88dc | 167 | return ; |
168 | } | |
169 | ||
88cb7938 | 170 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
171 | if(runget == 0x0) | |
172 | { | |
173 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
174 | return; | |
175 | } | |
176 | ||
177 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
178 | if ( gime == 0 ) | |
179 | { | |
180 | Error("Exec","Could not obtain the Loader object !"); | |
181 | return ; | |
182 | } | |
183 | ||
fbf811ec | 184 | if(gime->BranchExists("RecParticles") ) |
185 | return ; | |
186 | ||
b91d88dc | 187 | |
88cb7938 | 188 | Int_t nevents = runget->GetNumberOfEvents() ; //(Int_t) gAlice->TreeE()->GetEntries() ; |
b91d88dc | 189 | |
b91d88dc | 190 | Int_t ievent ; |
b91d88dc | 191 | |
192 | for(ievent = 0; ievent < nevents; ievent++){ | |
88cb7938 | 193 | runget->GetEvent(ievent); |
21cd0c07 | 194 | Info("Exec", "event %d %d %d", ievent, gime->EmcRecPoints(), gime->TrackSegments()) ; |
b91d88dc | 195 | MakeRecParticles() ; |
196 | ||
88cb7938 | 197 | WriteRecParticles(); |
b91d88dc | 198 | |
199 | if(strstr(option,"deb")) | |
200 | PrintRecParticles(option) ; | |
201 | ||
202 | //increment the total number of rec particles per run | |
203 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
204 | ||
205 | } | |
206 | ||
207 | if(strstr(option,"tim")){ | |
208 | gBenchmark->Stop("PHOSPID"); | |
21cd0c07 | 209 | Info("Exec", "took %f seconds for PID %f seconds per event", |
210 | gBenchmark->GetCpuTime("PHOSPID"), gBenchmark->GetCpuTime("PHOSPID")/nevents) ; | |
b91d88dc | 211 | } |
212 | ||
213 | } | |
214 | //____________________________________________________________________________ | |
215 | void AliPHOSPIDv0::Init() | |
216 | { | |
217 | // Make all memory allocations that are not possible in default constructor | |
218 | // Add the PID task to the list of PHOS tasks | |
219 | ||
88cb7938 | 220 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
221 | if(runget == 0x0) | |
222 | { | |
223 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
224 | return; | |
225 | } | |
b91d88dc | 226 | |
88cb7938 | 227 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); |
228 | if ( gime == 0 ) | |
229 | { | |
230 | Error("Exec","Could not obtain the Loader object !"); | |
231 | return ; | |
232 | } | |
b91d88dc | 233 | |
88cb7938 | 234 | gime->PostPID(this); |
235 | gime->LoadRecParticles("UPDATE"); | |
b91d88dc | 236 | |
237 | } | |
238 | ||
239 | //____________________________________________________________________________ | |
7f78a025 | 240 | void AliPHOSPIDv0::MakeRecParticles() |
241 | { | |
242 | // Reconstructs the particles from the tracksegments | |
b91d88dc | 243 | |
b91d88dc | 244 | TString taskName(GetName()) ; |
245 | taskName.Remove(taskName.Index(Version())-1) ; | |
246 | ||
88cb7938 | 247 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
248 | if(runget == 0x0) | |
249 | { | |
250 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
251 | return; | |
252 | } | |
253 | ||
254 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
255 | if ( gime == 0 ) | |
256 | { | |
257 | Error("Exec","Could not obtain the Loader object !"); | |
258 | return ; | |
259 | } | |
260 | ||
261 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; | |
262 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
263 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
264 | TClonesArray * recParticles = gime->RecParticles() ; | |
265 | ||
b91d88dc | 266 | recParticles->Clear(); |
267 | ||
268 | TIter next(trackSegments) ; | |
269 | AliPHOSTrackSegment * ts ; | |
270 | Int_t index = 0 ; | |
271 | AliPHOSRecParticle * rp ; | |
272 | ||
273 | Bool_t ellips = fIDOptions.Contains("ell",TString::kIgnoreCase ) ; | |
274 | Bool_t disp = fIDOptions.Contains("dis",TString::kIgnoreCase ) ; | |
275 | Bool_t time = fIDOptions.Contains("tim",TString::kIgnoreCase ) ; | |
276 | ||
277 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { | |
278 | ||
279 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; | |
280 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
a278df55 | 281 | rp->SetTrackSegment(index) ; |
b91d88dc | 282 | rp->SetIndexInList(index) ; |
283 | ||
284 | AliPHOSEmcRecPoint * emc = 0 ; | |
285 | if(ts->GetEmcIndex()>=0) | |
286 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; | |
287 | ||
288 | AliPHOSRecPoint * cpv = 0 ; | |
289 | if(ts->GetCpvIndex()>=0) | |
290 | cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; | |
291 | ||
292 | //set momentum and energy first | |
293 | Float_t e = emc->GetEnergy() ; | |
294 | TVector3 dir = GetMomentumDirection(emc,cpv) ; | |
295 | dir.SetMag(e) ; | |
296 | ||
297 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ; | |
298 | rp->SetCalcMass(0); | |
299 | ||
300 | //now set type (reconstructed) of the particle | |
301 | Int_t showerprofile = 0; // 0 narrow and 1 wide | |
302 | ||
303 | if(ellips){ | |
304 | Float_t lambda[2] ; | |
305 | emc->GetElipsAxis(lambda) ; | |
306 | if(fFormula->Eval(lambda[0],lambda[1]) <= 0 ) | |
307 | showerprofile = 1 ; // not narrow | |
308 | } | |
309 | ||
310 | if(disp) | |
311 | if(emc->GetDispersion() > fDispersion ) | |
312 | showerprofile = 1 ; // not narrow | |
313 | ||
314 | Int_t slow = 0 ; | |
315 | if(time) | |
316 | if(emc->GetTime() > fTimeGate ) | |
317 | slow = 0 ; | |
318 | ||
319 | // Looking at the CPV detector | |
320 | Int_t cpvdetector= 0 ; //1 hit and 0 no hit | |
321 | if(cpv) | |
322 | if(GetDistance(emc, cpv, "R") < fCpvEmcDistance) | |
323 | cpvdetector = 1 ; | |
324 | ||
325 | Int_t type = showerprofile + 2 * slow + 4 * cpvdetector ; | |
326 | rp->SetType(type) ; | |
327 | rp->SetProductionVertex(0,0,0,0); | |
328 | rp->SetFirstMother(-1); | |
329 | rp->SetLastMother(-1); | |
330 | rp->SetFirstDaughter(-1); | |
331 | rp->SetLastDaughter(-1); | |
332 | rp->SetPolarisation(0,0,0); | |
333 | index++ ; | |
334 | } | |
335 | ||
336 | } | |
337 | ||
338 | //____________________________________________________________________________ | |
88cb7938 | 339 | void AliPHOSPIDv0:: Print() const |
b91d88dc | 340 | { |
341 | // Print the parameters used for the particle type identification | |
21cd0c07 | 342 | TString message ; |
88cb7938 | 343 | message = "=============== AliPHOSPIDv0 ================\n" ; |
21cd0c07 | 344 | message += "Making PID\n" ; |
345 | message += " Headers file: %s\n" ; | |
346 | message += " RecPoints branch title: %s\n" ; | |
347 | message += " TrackSegments Branch title: %s\n" ; | |
348 | message += " RecParticles Branch title %s\n" ; | |
349 | message += "with parameters:\n" ; | |
350 | message += " Maximal EMC - CPV distance (cm) %f\n" ; | |
351 | Info("Print", message.Data(), | |
88cb7938 | 352 | GetTitle(), |
21cd0c07 | 353 | fRecPointsTitle.Data(), |
354 | fTrackSegmentsTitle.Data(), | |
355 | fRecParticlesTitle.Data(), | |
356 | fCpvEmcDistance ); | |
357 | ||
358 | if(fIDOptions.Contains("dis",TString::kIgnoreCase )) | |
359 | Info("Print", " dispersion cut %f", fDispersion ) ; | |
360 | if(fIDOptions.Contains("ell",TString::kIgnoreCase )) | |
361 | Info("Print", " Eliptic cuts function: %s", fFormula->GetTitle() ) ; | |
362 | if(fIDOptions.Contains("tim",TString::kIgnoreCase )) | |
363 | Info("Print", " Time Gate used: %f", fTimeGate) ; | |
b91d88dc | 364 | } |
365 | ||
366 | //____________________________________________________________________________ | |
8e8eae84 | 367 | void AliPHOSPIDv0::SetShowerProfileCut(const char * formula) |
b91d88dc | 368 | { |
369 | //set shape of the cut on the axis of ellipce, drown around shouer | |
370 | //shower considered "narrow" if Formula(lambda[0],lambda[1]) > 0. | |
371 | if(fFormula) | |
372 | delete fFormula; | |
373 | fFormula = new TFormula("Lambda Cut",formula) ; | |
374 | } | |
375 | //____________________________________________________________________________ | |
88cb7938 | 376 | void AliPHOSPIDv0::WriteRecParticles() |
b91d88dc | 377 | { |
7f78a025 | 378 | // Saves the reconstructed particles too a file |
b91d88dc | 379 | |
88cb7938 | 380 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
381 | if(runget == 0x0) | |
382 | { | |
383 | Error("Exec","Can not find run getter in event folder \"%s\"",GetTitle()); | |
384 | return; | |
385 | } | |
386 | ||
387 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
388 | if ( gime == 0 ) | |
389 | { | |
390 | Error("Exec","Could not obtain the Loader object !"); | |
391 | return ; | |
392 | } | |
393 | ||
394 | TClonesArray * recParticles = gime->RecParticles() ; | |
b91d88dc | 395 | recParticles->Expand(recParticles->GetEntriesFast() ) ; |
396 | ||
88cb7938 | 397 | TTree * treeR = gime->TreeR(); |
b91d88dc | 398 | |
fbf811ec | 399 | if(!treeR){ |
88cb7938 | 400 | gime->MakeTree("R"); |
401 | treeR = gime->TreeR() ; | |
fbf811ec | 402 | } |
b91d88dc | 403 | |
404 | //First rp | |
405 | Int_t bufferSize = 32000 ; | |
fbf811ec | 406 | TBranch * rpBranch = treeR->Branch("PHOSRP",&recParticles,bufferSize); |
b91d88dc | 407 | rpBranch->SetTitle(fRecParticlesTitle); |
b91d88dc | 408 | |
409 | //second, pid | |
410 | Int_t splitlevel = 0 ; | |
411 | AliPHOSPIDv0 * pid = this ; | |
fbf811ec | 412 | TBranch * pidBranch = treeR->Branch("AliPHOSPID","AliPHOSPIDv0",&pid,bufferSize,splitlevel); |
b91d88dc | 413 | pidBranch->SetTitle(fRecParticlesTitle.Data()); |
b91d88dc | 414 | |
415 | rpBranch->Fill() ; | |
416 | pidBranch->Fill() ; | |
88cb7938 | 417 | |
418 | gime->WriteRecParticles("OVERWRITE"); | |
419 | gime->WritePID("OVERWRITE"); | |
420 | ||
b91d88dc | 421 | } |
422 | ||
423 | //____________________________________________________________________________ | |
424 | void AliPHOSPIDv0::PlotDispersionCuts()const | |
425 | { | |
426 | // produces a plot of the dispersion cut | |
427 | TCanvas* lambdas = new TCanvas("lambdas","Cuts on the ellipse axis",200,10,700,500); | |
428 | ||
429 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ){ | |
430 | TF2 * ell = new TF2("Elliptic Cuts",fFormula->GetName(),0,3,0,3) ; | |
431 | ell->SetMinimum(0.0000001) ; | |
432 | ell->SetMaximum(0.001) ; | |
433 | ell->SetLineStyle(1) ; | |
434 | ell->SetLineWidth(2) ; | |
435 | ell->Draw() ; | |
436 | } | |
437 | ||
438 | if( fIDOptions.Contains("dis",TString::kIgnoreCase ) ){ | |
439 | TF2 * dsp = new TF2("dispersion","(y<x)*(x*x+y*y < [0]*[0])",0,3,0,3) ; | |
440 | dsp->SetParameter(0,fDispersion) ; | |
441 | dsp->SetMinimum(0.0000001) ; | |
442 | dsp->SetMaximum(0.001) ; | |
443 | dsp->SetLineStyle(1) ; | |
444 | dsp->SetLineColor(2) ; | |
445 | dsp->SetLineWidth(2) ; | |
446 | dsp->SetNpx(200) ; | |
447 | dsp->SetNpy(200) ; | |
448 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ) | |
449 | dsp->Draw("same") ; | |
450 | else | |
451 | dsp->Draw() ; | |
452 | } | |
453 | lambdas->Update(); | |
454 | } | |
455 | ||
456 | //____________________________________________________________________________ | |
8f2a3661 | 457 | TVector3 AliPHOSPIDv0::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * )const |
b91d88dc | 458 | { |
459 | // Calculates the momentum direction: | |
460 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
461 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints | |
462 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
463 | // in case 1. | |
464 | ||
465 | TVector3 dir(0,0,0) ; | |
466 | ||
467 | TVector3 emcglobalpos ; | |
468 | TMatrix dummy ; | |
469 | ||
470 | emc->GetGlobalPosition(emcglobalpos, dummy) ; | |
471 | ||
472 | ||
473 | // The following commented code becomes valid once the PPSD provides | |
474 | // a reasonable position resolution, at least as good as EMC ! | |
475 | // TVector3 ppsdlglobalpos ; | |
476 | // TVector3 ppsduglobalpos ; | |
477 | // if( fPpsdLowRecPoint ){ // certainly a photon that has concerted | |
478 | // fPpsdLowRecPoint->GetGlobalPosition(ppsdlglobalpos, mdummy) ; | |
479 | // dir = emcglobalpos - ppsdlglobalpos ; | |
480 | // if( fPpsdUpRecPoint ){ // not looks like a charged | |
481 | // fPpsdUpRecPoint->GetGlobalPosition(ppsduglobalpos, mdummy) ; | |
482 | // dir = ( dir + emcglobalpos - ppsduglobalpos ) * 0.5 ; | |
483 | // } | |
484 | // } | |
485 | // else { // looks like a neutral | |
486 | // dir = emcglobalpos ; | |
487 | // } | |
488 | ||
489 | dir = emcglobalpos ; | |
490 | dir.SetZ( -dir.Z() ) ; // why ? | |
491 | dir.SetMag(1.) ; | |
492 | ||
493 | //account correction to the position of IP | |
494 | Float_t xo,yo,zo ; //Coordinates of the origin | |
495 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; | |
496 | TVector3 origin(xo,yo,zo); | |
497 | dir = dir - origin ; | |
498 | ||
499 | return dir ; | |
500 | } | |
501 | //____________________________________________________________________________ | |
502 | void AliPHOSPIDv0::PrintRecParticles(Option_t * option) | |
503 | { | |
504 | // Print table of reconstructed particles | |
505 | ||
88cb7938 | 506 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
507 | if(runget == 0x0) | |
508 | { | |
509 | Error("WriteRecParticles","Can not find run getter in event folder \"%s\"",GetTitle()); | |
510 | return; | |
511 | } | |
512 | ||
513 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
514 | if ( gime == 0 ) | |
515 | { | |
516 | Error("WriteRecParticles","Could not obtain the Loader object !"); | |
517 | return ; | |
518 | } | |
b91d88dc | 519 | |
520 | TString taskName(GetName()) ; | |
521 | taskName.Remove(taskName.Index(Version())-1) ; | |
88cb7938 | 522 | TClonesArray * recParticles = gime->RecParticles() ; |
b91d88dc | 523 | |
21cd0c07 | 524 | TString message ; |
525 | message = "event %d\n" ; | |
526 | message += " found %d RecParticles\n" ; | |
527 | Info("PrintRecParticles", message.Data(), gAlice->GetEvNumber(), recParticles->GetEntriesFast() ) ; | |
528 | ||
b91d88dc | 529 | if(strstr(option,"all")) { // printing found TS |
21cd0c07 | 530 | Info("PrintRecParticles"," PARTICLE Index \n" ) ; |
88cb7938 | 531 | |
b91d88dc | 532 | Int_t index ; |
533 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { | |
534 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; | |
535 | ||
536 | Text_t particle[11]; | |
537 | switch(rp->GetType()) { | |
538 | case AliPHOSFastRecParticle::kNEUTRALEMFAST: | |
539 | strcpy( particle, "NEUTRAL EM FAST"); | |
540 | break; | |
541 | case AliPHOSFastRecParticle::kNEUTRALHAFAST: | |
542 | strcpy(particle, "NEUTRAL HA FAST"); | |
543 | break; | |
544 | case AliPHOSFastRecParticle::kNEUTRALEMSLOW: | |
545 | strcpy(particle, "NEUTRAL EM SLOW"); | |
546 | break ; | |
547 | case AliPHOSFastRecParticle::kNEUTRALHASLOW: | |
548 | strcpy(particle, "NEUTRAL HA SLOW"); | |
549 | break ; | |
550 | case AliPHOSFastRecParticle::kCHARGEDEMFAST: | |
551 | strcpy(particle, "CHARGED EM FAST") ; | |
552 | break ; | |
553 | case AliPHOSFastRecParticle::kCHARGEDHAFAST: | |
554 | strcpy(particle, "CHARGED HA FAST") ; | |
555 | break ; | |
556 | case AliPHOSFastRecParticle::kCHARGEDEMSLOW: | |
557 | strcpy(particle, "CHARGEDEMSLOW") ; | |
558 | break ; | |
559 | case AliPHOSFastRecParticle::kCHARGEDHASLOW: | |
560 | strcpy(particle, "CHARGED HA SLOW") ; | |
561 | break ; | |
562 | } | |
563 | ||
564 | // Int_t * primaries; | |
565 | // Int_t nprimaries; | |
566 | // primaries = rp->GetPrimaries(nprimaries); | |
567 | ||
21cd0c07 | 568 | Info("PrintRecParticles", " %s %d\n", particle, rp->GetIndexInList()) ; |
b91d88dc | 569 | } |
21cd0c07 | 570 | } |
b91d88dc | 571 | } |
572 | ||
573 | ||
574 |