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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 | ||
702ab87e | 18 | /* History of cvs commits: |
19 | * | |
20 | * $Log$ | |
21 | */ | |
22 | ||
b91d88dc | 23 | //_________________________________________________________________________ |
24 | // Implementation version v0 of the PHOS particle identifier | |
25 | // Particle identification based on the | |
26 | // - CPV information, | |
27 | // - Preshower information (in MIXT or GPS2 geometries) | |
28 | // - shower width. | |
29 | // | |
30 | // CPV or Preshower clusters should be closer in PHOS plane than fCpvEmcDistance (in cm). | |
31 | // This parameter can be set by method SetCpvtoEmcDistanceCut(Float_t cut) | |
32 | // | |
33 | // One can set desirable ID method by the function SetIdentificationMethod(option). | |
34 | // Presently the following options can be used together or separately : | |
35 | // - "disp": use dispersion cut on shower width | |
36 | // (width can be set by method SetDispersionCut(Float_t cut) | |
37 | // - "ell" : use cut on the axis of the ellipse, drawn around shower | |
38 | // (this cut can be changed by SetShowerProfileCut(char* formula), | |
39 | // where formula - any function of two variables f(lambda[0],lambda[1]). | |
40 | // Shower is considered as EM if f() > 0 ) | |
41 | // One can visualize current cuts calling method PlotDispersionCuts(). | |
42 | // | |
43 | // use case: | |
44 | // root [0] AliPHOSPIDv0 * p1 = new AliPHOSPIDv0("galice.root") | |
45 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
46 | // root [1] p1->SetIdentificationMethod("disp ellipse") | |
47 | // root [2] p1->ExecuteTask() | |
48 | // root [3] AliPHOSPIDv0 * p2 = new AliPHOSPIDv0("galice1.root","ts1") | |
49 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
50 | // // reading headers from file galice1.root and TrackSegments | |
51 | // // with title "ts1" | |
52 | // root [4] p2->SetRecParticlesBranch("rp1") | |
53 | // // set file name for the branch RecParticles | |
54 | // root [5] p2->ExecuteTask("deb all time") | |
55 | // // available options | |
56 | // // "deb" - prints # of reconstructed particles | |
57 | // // "deb all" - prints # and list of RecParticles | |
58 | // // "time" - prints benchmarking results | |
59 | // | |
60 | //*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & | |
61 | // Dmitri Peressounko (SUBATECH & Kurchatov Institute) | |
62 | // Completely redesined by Dmitri Peressounko, March 2001 | |
63 | ||
64 | // --- ROOT system --- | |
b91d88dc | 65 | #include "TTree.h" |
b91d88dc | 66 | #include "TF2.h" |
67 | #include "TFormula.h" | |
68 | #include "TCanvas.h" | |
7f78a025 | 69 | |
b91d88dc | 70 | #include "TBenchmark.h" |
71 | // --- Standard library --- | |
72 | ||
b91d88dc | 73 | // --- AliRoot header files --- |
351dd634 | 74 | #include "AliLog.h" |
88cb7938 | 75 | #include "AliRun.h" |
b91d88dc | 76 | #include "AliGenerator.h" |
b91d88dc | 77 | #include "AliPHOSPIDv0.h" |
e957fea8 | 78 | #include "AliPHOSEmcRecPoint.h" |
b91d88dc | 79 | #include "AliPHOSTrackSegment.h" |
b91d88dc | 80 | #include "AliPHOSRecParticle.h" |
81 | #include "AliPHOSGeometry.h" | |
88cb7938 | 82 | #include "AliPHOSLoader.h" |
b91d88dc | 83 | |
84 | ClassImp( AliPHOSPIDv0) | |
85 | ||
86 | //____________________________________________________________________________ | |
87 | AliPHOSPIDv0::AliPHOSPIDv0():AliPHOSPID() | |
88 | { | |
89 | // default ctor | |
90 | fFormula = 0 ; | |
91 | fDispersion = 0. ; | |
92 | fCpvEmcDistance = 0 ; | |
93 | fTimeGate = 2.e-9 ; | |
88cb7938 | 94 | fEventFolderName = "" ; |
b91d88dc | 95 | fTrackSegmentsTitle= "" ; |
96 | fRecPointsTitle = "" ; | |
97 | fRecParticlesTitle = "" ; | |
98 | fIDOptions = "dis time" ; | |
99 | fRecParticlesInRun = 0 ; | |
100 | fClusterizer = 0; | |
101 | fTSMaker = 0; | |
102 | } | |
103 | ||
104 | //____________________________________________________________________________ | |
88cb7938 | 105 | AliPHOSPIDv0::AliPHOSPIDv0(const char * evFolderName,const char * name) : AliPHOSPID(evFolderName, name) |
b91d88dc | 106 | { |
107 | //ctor with the indication on where to look for the track segments | |
108 | ||
109 | fFormula = new TFormula("LambdaCuts","(x>1)*(x<2.5)*(y>0)*(y<x)") ; | |
110 | fDispersion = 2.0 ; | |
111 | fCpvEmcDistance = 3.0 ; | |
112 | fTimeGate = 2.e-9 ; | |
113 | ||
88cb7938 | 114 | fEventFolderName = GetTitle() ; |
115 | fTrackSegmentsTitle = GetName(); | |
116 | fRecPointsTitle = GetName(); | |
117 | fRecParticlesTitle = GetName(); | |
b91d88dc | 118 | fIDOptions = "dis time" ; |
119 | ||
b91d88dc | 120 | fRecParticlesInRun = 0 ; |
121 | ||
122 | Init() ; | |
123 | ||
124 | } | |
125 | ||
126 | //____________________________________________________________________________ | |
127 | AliPHOSPIDv0::~AliPHOSPIDv0() | |
128 | { | |
129 | } | |
130 | ||
b91d88dc | 131 | //____________________________________________________________________________ |
132 | Float_t AliPHOSPIDv0::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const | |
133 | { | |
134 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
135 | ||
88cb7938 | 136 | const AliPHOSGeometry * geom = AliPHOSLoader::GetPHOSGeometry() ; |
b91d88dc | 137 | TVector3 vecEmc ; |
138 | TVector3 vecCpv ; | |
139 | ||
140 | emc->GetLocalPosition(vecEmc) ; | |
141 | cpv->GetLocalPosition(vecCpv) ; | |
142 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ | |
143 | ||
144 | // Correct to difference in CPV and EMC position due to different distance to center. | |
145 | // we assume, that particle moves from center | |
146 | Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
147 | Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
148 | dEMC = dEMC / dCPV ; | |
149 | vecCpv = dEMC * vecCpv - vecEmc ; | |
150 | if (Axis == "X") return vecCpv.X(); | |
151 | if (Axis == "Y") return vecCpv.Y(); | |
152 | if (Axis == "Z") return vecCpv.Z(); | |
153 | if (Axis == "R") return vecCpv.Mag(); | |
154 | } | |
155 | ||
156 | return 100000000 ; | |
157 | } | |
158 | ||
159 | //____________________________________________________________________________ | |
160 | void AliPHOSPIDv0::Exec(Option_t * option) | |
161 | { | |
162 | //Steering method | |
163 | ||
164 | if( strcmp(GetName(), "")== 0 ) | |
165 | Init() ; | |
166 | ||
167 | if(strstr(option,"tim")) | |
168 | gBenchmark->Start("PHOSPID"); | |
169 | ||
170 | if(strstr(option,"print")) { | |
88cb7938 | 171 | Print() ; |
b91d88dc | 172 | return ; |
173 | } | |
174 | ||
88cb7938 | 175 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
176 | if(runget == 0x0) | |
177 | { | |
351dd634 | 178 | AliError(Form("Can not find run getter in event folder \"%s\"", |
179 | GetTitle())); | |
88cb7938 | 180 | return; |
181 | } | |
182 | ||
183 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
184 | if ( gime == 0 ) | |
185 | { | |
351dd634 | 186 | AliError("Could not obtain the Loader object !"); |
88cb7938 | 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); |
351dd634 | 200 | AliInfo(Form("event %d %d %d", |
201 | ievent, gime->EmcRecPoints(), | |
202 | gime->TrackSegments())) ; | |
b91d88dc | 203 | MakeRecParticles() ; |
204 | ||
88cb7938 | 205 | WriteRecParticles(); |
b91d88dc | 206 | |
207 | if(strstr(option,"deb")) | |
208 | PrintRecParticles(option) ; | |
209 | ||
210 | //increment the total number of rec particles per run | |
211 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
212 | ||
213 | } | |
214 | ||
215 | if(strstr(option,"tim")){ | |
216 | gBenchmark->Stop("PHOSPID"); | |
351dd634 | 217 | AliInfo(Form("took %f seconds for PID %f seconds per event", |
218 | gBenchmark->GetCpuTime("PHOSPID"), | |
219 | gBenchmark->GetCpuTime("PHOSPID")/nevents)) ; | |
b91d88dc | 220 | } |
221 | ||
222 | } | |
223 | //____________________________________________________________________________ | |
224 | void AliPHOSPIDv0::Init() | |
225 | { | |
226 | // Make all memory allocations that are not possible in default constructor | |
227 | // Add the PID task to the list of PHOS tasks | |
228 | ||
88cb7938 | 229 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
230 | if(runget == 0x0) | |
231 | { | |
351dd634 | 232 | AliError(Form("Can not find run getter in event folder \"%s\"", |
233 | GetTitle())); | |
88cb7938 | 234 | return; |
235 | } | |
b91d88dc | 236 | |
88cb7938 | 237 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); |
238 | if ( gime == 0 ) | |
239 | { | |
351dd634 | 240 | AliError("Could not obtain the Loader object !"); |
88cb7938 | 241 | return ; |
242 | } | |
b91d88dc | 243 | |
88cb7938 | 244 | gime->PostPID(this); |
245 | gime->LoadRecParticles("UPDATE"); | |
b91d88dc | 246 | |
247 | } | |
248 | ||
249 | //____________________________________________________________________________ | |
7f78a025 | 250 | void AliPHOSPIDv0::MakeRecParticles() |
251 | { | |
252 | // Reconstructs the particles from the tracksegments | |
b91d88dc | 253 | |
b91d88dc | 254 | TString taskName(GetName()) ; |
255 | taskName.Remove(taskName.Index(Version())-1) ; | |
256 | ||
88cb7938 | 257 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
258 | if(runget == 0x0) | |
259 | { | |
351dd634 | 260 | AliError(Form("Can not find run getter in event folder \"%s\"", |
261 | GetTitle())); | |
88cb7938 | 262 | return; |
263 | } | |
264 | ||
265 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
266 | if ( gime == 0 ) | |
267 | { | |
351dd634 | 268 | AliError("Could not obtain the Loader object !"); |
88cb7938 | 269 | return ; |
270 | } | |
271 | ||
272 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; | |
273 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
274 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
275 | TClonesArray * recParticles = gime->RecParticles() ; | |
276 | ||
b91d88dc | 277 | recParticles->Clear(); |
278 | ||
279 | TIter next(trackSegments) ; | |
280 | AliPHOSTrackSegment * ts ; | |
281 | Int_t index = 0 ; | |
282 | AliPHOSRecParticle * rp ; | |
283 | ||
284 | Bool_t ellips = fIDOptions.Contains("ell",TString::kIgnoreCase ) ; | |
285 | Bool_t disp = fIDOptions.Contains("dis",TString::kIgnoreCase ) ; | |
286 | Bool_t time = fIDOptions.Contains("tim",TString::kIgnoreCase ) ; | |
287 | ||
288 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { | |
289 | ||
290 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; | |
291 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
a278df55 | 292 | rp->SetTrackSegment(index) ; |
b91d88dc | 293 | rp->SetIndexInList(index) ; |
294 | ||
295 | AliPHOSEmcRecPoint * emc = 0 ; | |
296 | if(ts->GetEmcIndex()>=0) | |
297 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; | |
298 | ||
299 | AliPHOSRecPoint * cpv = 0 ; | |
300 | if(ts->GetCpvIndex()>=0) | |
301 | cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; | |
302 | ||
303 | //set momentum and energy first | |
304 | Float_t e = emc->GetEnergy() ; | |
305 | TVector3 dir = GetMomentumDirection(emc,cpv) ; | |
306 | dir.SetMag(e) ; | |
307 | ||
308 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ; | |
309 | rp->SetCalcMass(0); | |
310 | ||
311 | //now set type (reconstructed) of the particle | |
312 | Int_t showerprofile = 0; // 0 narrow and 1 wide | |
313 | ||
314 | if(ellips){ | |
315 | Float_t lambda[2] ; | |
316 | emc->GetElipsAxis(lambda) ; | |
317 | if(fFormula->Eval(lambda[0],lambda[1]) <= 0 ) | |
318 | showerprofile = 1 ; // not narrow | |
319 | } | |
320 | ||
321 | if(disp) | |
322 | if(emc->GetDispersion() > fDispersion ) | |
323 | showerprofile = 1 ; // not narrow | |
324 | ||
325 | Int_t slow = 0 ; | |
326 | if(time) | |
327 | if(emc->GetTime() > fTimeGate ) | |
328 | slow = 0 ; | |
329 | ||
330 | // Looking at the CPV detector | |
331 | Int_t cpvdetector= 0 ; //1 hit and 0 no hit | |
332 | if(cpv) | |
333 | if(GetDistance(emc, cpv, "R") < fCpvEmcDistance) | |
334 | cpvdetector = 1 ; | |
335 | ||
336 | Int_t type = showerprofile + 2 * slow + 4 * cpvdetector ; | |
337 | rp->SetType(type) ; | |
338 | rp->SetProductionVertex(0,0,0,0); | |
339 | rp->SetFirstMother(-1); | |
340 | rp->SetLastMother(-1); | |
341 | rp->SetFirstDaughter(-1); | |
342 | rp->SetLastDaughter(-1); | |
343 | rp->SetPolarisation(0,0,0); | |
344 | index++ ; | |
345 | } | |
346 | ||
347 | } | |
348 | ||
349 | //____________________________________________________________________________ | |
702ab87e | 350 | void AliPHOSPIDv0:: Print(const Option_t *) const |
b91d88dc | 351 | { |
352 | // Print the parameters used for the particle type identification | |
21cd0c07 | 353 | TString message ; |
88cb7938 | 354 | message = "=============== AliPHOSPIDv0 ================\n" ; |
21cd0c07 | 355 | message += "Making PID\n" ; |
356 | message += " Headers file: %s\n" ; | |
357 | message += " RecPoints branch title: %s\n" ; | |
358 | message += " TrackSegments Branch title: %s\n" ; | |
359 | message += " RecParticles Branch title %s\n" ; | |
360 | message += "with parameters:\n" ; | |
361 | message += " Maximal EMC - CPV distance (cm) %f\n" ; | |
351dd634 | 362 | AliInfo(Form( message.Data(), |
88cb7938 | 363 | GetTitle(), |
21cd0c07 | 364 | fRecPointsTitle.Data(), |
365 | fTrackSegmentsTitle.Data(), | |
366 | fRecParticlesTitle.Data(), | |
351dd634 | 367 | fCpvEmcDistance )); |
21cd0c07 | 368 | |
369 | if(fIDOptions.Contains("dis",TString::kIgnoreCase )) | |
351dd634 | 370 | AliInfo(Form(" dispersion cut %f", fDispersion )) ; |
21cd0c07 | 371 | if(fIDOptions.Contains("ell",TString::kIgnoreCase )) |
351dd634 | 372 | AliInfo(Form(" Eliptic cuts function: %s", |
373 | fFormula->GetTitle() )) ; | |
21cd0c07 | 374 | if(fIDOptions.Contains("tim",TString::kIgnoreCase )) |
351dd634 | 375 | AliInfo(Form(" Time Gate used: %f", fTimeGate)) ; |
b91d88dc | 376 | } |
377 | ||
378 | //____________________________________________________________________________ | |
8e8eae84 | 379 | void AliPHOSPIDv0::SetShowerProfileCut(const char * formula) |
b91d88dc | 380 | { |
381 | //set shape of the cut on the axis of ellipce, drown around shouer | |
382 | //shower considered "narrow" if Formula(lambda[0],lambda[1]) > 0. | |
383 | if(fFormula) | |
384 | delete fFormula; | |
385 | fFormula = new TFormula("Lambda Cut",formula) ; | |
386 | } | |
387 | //____________________________________________________________________________ | |
88cb7938 | 388 | void AliPHOSPIDv0::WriteRecParticles() |
b91d88dc | 389 | { |
7f78a025 | 390 | // Saves the reconstructed particles too a file |
b91d88dc | 391 | |
88cb7938 | 392 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
393 | if(runget == 0x0) | |
394 | { | |
351dd634 | 395 | AliError(Form("Can not find run getter in event folder \"%s\"", |
396 | GetTitle())); | |
88cb7938 | 397 | return; |
398 | } | |
399 | ||
400 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
401 | if ( gime == 0 ) | |
402 | { | |
351dd634 | 403 | AliError("Could not obtain the Loader object !"); |
88cb7938 | 404 | return ; |
405 | } | |
406 | ||
407 | TClonesArray * recParticles = gime->RecParticles() ; | |
b91d88dc | 408 | recParticles->Expand(recParticles->GetEntriesFast() ) ; |
409 | ||
88cb7938 | 410 | TTree * treeR = gime->TreeR(); |
b91d88dc | 411 | |
fbf811ec | 412 | if(!treeR){ |
88cb7938 | 413 | gime->MakeTree("R"); |
414 | treeR = gime->TreeR() ; | |
fbf811ec | 415 | } |
b91d88dc | 416 | |
417 | //First rp | |
418 | Int_t bufferSize = 32000 ; | |
fbf811ec | 419 | TBranch * rpBranch = treeR->Branch("PHOSRP",&recParticles,bufferSize); |
b91d88dc | 420 | rpBranch->SetTitle(fRecParticlesTitle); |
b91d88dc | 421 | |
422 | //second, pid | |
423 | Int_t splitlevel = 0 ; | |
424 | AliPHOSPIDv0 * pid = this ; | |
fbf811ec | 425 | TBranch * pidBranch = treeR->Branch("AliPHOSPID","AliPHOSPIDv0",&pid,bufferSize,splitlevel); |
b91d88dc | 426 | pidBranch->SetTitle(fRecParticlesTitle.Data()); |
b91d88dc | 427 | |
428 | rpBranch->Fill() ; | |
429 | pidBranch->Fill() ; | |
88cb7938 | 430 | |
431 | gime->WriteRecParticles("OVERWRITE"); | |
432 | gime->WritePID("OVERWRITE"); | |
433 | ||
b91d88dc | 434 | } |
435 | ||
436 | //____________________________________________________________________________ | |
437 | void AliPHOSPIDv0::PlotDispersionCuts()const | |
438 | { | |
439 | // produces a plot of the dispersion cut | |
440 | TCanvas* lambdas = new TCanvas("lambdas","Cuts on the ellipse axis",200,10,700,500); | |
441 | ||
442 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ){ | |
443 | TF2 * ell = new TF2("Elliptic Cuts",fFormula->GetName(),0,3,0,3) ; | |
444 | ell->SetMinimum(0.0000001) ; | |
445 | ell->SetMaximum(0.001) ; | |
446 | ell->SetLineStyle(1) ; | |
447 | ell->SetLineWidth(2) ; | |
448 | ell->Draw() ; | |
449 | } | |
450 | ||
451 | if( fIDOptions.Contains("dis",TString::kIgnoreCase ) ){ | |
452 | TF2 * dsp = new TF2("dispersion","(y<x)*(x*x+y*y < [0]*[0])",0,3,0,3) ; | |
453 | dsp->SetParameter(0,fDispersion) ; | |
454 | dsp->SetMinimum(0.0000001) ; | |
455 | dsp->SetMaximum(0.001) ; | |
456 | dsp->SetLineStyle(1) ; | |
457 | dsp->SetLineColor(2) ; | |
458 | dsp->SetLineWidth(2) ; | |
459 | dsp->SetNpx(200) ; | |
460 | dsp->SetNpy(200) ; | |
461 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ) | |
462 | dsp->Draw("same") ; | |
463 | else | |
464 | dsp->Draw() ; | |
465 | } | |
466 | lambdas->Update(); | |
467 | } | |
468 | ||
469 | //____________________________________________________________________________ | |
8f2a3661 | 470 | TVector3 AliPHOSPIDv0::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * )const |
b91d88dc | 471 | { |
472 | // Calculates the momentum direction: | |
473 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
474 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints | |
475 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
476 | // in case 1. | |
477 | ||
478 | TVector3 dir(0,0,0) ; | |
479 | ||
480 | TVector3 emcglobalpos ; | |
481 | TMatrix dummy ; | |
482 | ||
483 | emc->GetGlobalPosition(emcglobalpos, dummy) ; | |
484 | ||
485 | ||
486 | // The following commented code becomes valid once the PPSD provides | |
487 | // a reasonable position resolution, at least as good as EMC ! | |
488 | // TVector3 ppsdlglobalpos ; | |
489 | // TVector3 ppsduglobalpos ; | |
490 | // if( fPpsdLowRecPoint ){ // certainly a photon that has concerted | |
491 | // fPpsdLowRecPoint->GetGlobalPosition(ppsdlglobalpos, mdummy) ; | |
492 | // dir = emcglobalpos - ppsdlglobalpos ; | |
493 | // if( fPpsdUpRecPoint ){ // not looks like a charged | |
494 | // fPpsdUpRecPoint->GetGlobalPosition(ppsduglobalpos, mdummy) ; | |
495 | // dir = ( dir + emcglobalpos - ppsduglobalpos ) * 0.5 ; | |
496 | // } | |
497 | // } | |
498 | // else { // looks like a neutral | |
499 | // dir = emcglobalpos ; | |
500 | // } | |
501 | ||
502 | dir = emcglobalpos ; | |
503 | dir.SetZ( -dir.Z() ) ; // why ? | |
504 | dir.SetMag(1.) ; | |
505 | ||
506 | //account correction to the position of IP | |
507 | Float_t xo,yo,zo ; //Coordinates of the origin | |
508 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; | |
509 | TVector3 origin(xo,yo,zo); | |
510 | dir = dir - origin ; | |
511 | ||
512 | return dir ; | |
513 | } | |
514 | //____________________________________________________________________________ | |
515 | void AliPHOSPIDv0::PrintRecParticles(Option_t * option) | |
516 | { | |
517 | // Print table of reconstructed particles | |
518 | ||
88cb7938 | 519 | AliRunLoader* runget = AliRunLoader::GetRunLoader(GetTitle()); |
520 | if(runget == 0x0) | |
521 | { | |
351dd634 | 522 | AliError(Form("Can not find run getter in event folder \"%s\"", |
523 | GetTitle())); | |
88cb7938 | 524 | return; |
525 | } | |
526 | ||
527 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(runget->GetLoader("PHOSLoader")); | |
528 | if ( gime == 0 ) | |
529 | { | |
351dd634 | 530 | AliError("Could not obtain the Loader object !"); |
88cb7938 | 531 | return ; |
532 | } | |
b91d88dc | 533 | |
534 | TString taskName(GetName()) ; | |
535 | taskName.Remove(taskName.Index(Version())-1) ; | |
88cb7938 | 536 | TClonesArray * recParticles = gime->RecParticles() ; |
b91d88dc | 537 | |
21cd0c07 | 538 | TString message ; |
539 | message = "event %d\n" ; | |
540 | message += " found %d RecParticles\n" ; | |
351dd634 | 541 | AliInfo(Form(message.Data(), |
542 | gAlice->GetEvNumber(), recParticles->GetEntriesFast() )) ; | |
21cd0c07 | 543 | |
b91d88dc | 544 | if(strstr(option,"all")) { // printing found TS |
351dd634 | 545 | AliInfo(" PARTICLE Index" ) ; |
88cb7938 | 546 | |
b91d88dc | 547 | Int_t index ; |
548 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { | |
549 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; | |
550 | ||
551 | Text_t particle[11]; | |
552 | switch(rp->GetType()) { | |
553 | case AliPHOSFastRecParticle::kNEUTRALEMFAST: | |
554 | strcpy( particle, "NEUTRAL EM FAST"); | |
555 | break; | |
556 | case AliPHOSFastRecParticle::kNEUTRALHAFAST: | |
557 | strcpy(particle, "NEUTRAL HA FAST"); | |
558 | break; | |
559 | case AliPHOSFastRecParticle::kNEUTRALEMSLOW: | |
560 | strcpy(particle, "NEUTRAL EM SLOW"); | |
561 | break ; | |
562 | case AliPHOSFastRecParticle::kNEUTRALHASLOW: | |
563 | strcpy(particle, "NEUTRAL HA SLOW"); | |
564 | break ; | |
565 | case AliPHOSFastRecParticle::kCHARGEDEMFAST: | |
566 | strcpy(particle, "CHARGED EM FAST") ; | |
567 | break ; | |
568 | case AliPHOSFastRecParticle::kCHARGEDHAFAST: | |
569 | strcpy(particle, "CHARGED HA FAST") ; | |
570 | break ; | |
571 | case AliPHOSFastRecParticle::kCHARGEDEMSLOW: | |
572 | strcpy(particle, "CHARGEDEMSLOW") ; | |
573 | break ; | |
574 | case AliPHOSFastRecParticle::kCHARGEDHASLOW: | |
575 | strcpy(particle, "CHARGED HA SLOW") ; | |
576 | break ; | |
577 | } | |
578 | ||
579 | // Int_t * primaries; | |
580 | // Int_t nprimaries; | |
581 | // primaries = rp->GetPrimaries(nprimaries); | |
582 | ||
351dd634 | 583 | AliInfo(Form(" %s %d", |
584 | particle, rp->GetIndexInList())) ; | |
b91d88dc | 585 | } |
21cd0c07 | 586 | } |
b91d88dc | 587 | } |
588 | ||
589 | ||
590 |