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6ad0bfa0 | 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 | ||
6ad0bfa0 | 18 | //_________________________________________________________________________ |
b2a60966 | 19 | // Implementation version v1 of the PHOS particle identifier |
7acf6008 | 20 | // Particle identification based on the |
21 | // - CPV information, | |
22 | // - Preshower information (in MIX or GPS2 geometries) | |
23 | // - shower width. | |
b2a60966 | 24 | |
7acf6008 | 25 | // CPV or Preshower cluster should be clother in PHOS plane than fCpvEmcDistance (in cm). |
26 | // This variable can be set by method SetCpvtoEmcDistanceCut(Float_t cut) | |
27 | // | |
28 | // One can set desirable ID method by the function SetIdentificationMethod(option). | |
29 | // Now 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, drown 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 | // Below we present usercase: | |
39 | // root [0] AliPHOSPIDv1 * p1 = new AliPHOSPIDv1("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] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("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 | // Complitely redesined by Dmitri Peressounko, March 2001 | |
6ad0bfa0 | 58 | |
59 | // --- ROOT system --- | |
7acf6008 | 60 | #include "TROOT.h" |
61 | #include "TTree.h" | |
62 | #include "TFile.h" | |
63 | #include "TF2.h" | |
64 | #include "TFormula.h" | |
65 | #include "TCanvas.h" | |
66 | #include "TFolder.h" | |
67 | #include "TSystem.h" | |
68 | #include "TBenchmark.h" | |
6ad0bfa0 | 69 | // --- Standard library --- |
70 | ||
de9ec31b | 71 | #include <iostream.h> |
7acf6008 | 72 | #include <iomanip.h> |
6ad0bfa0 | 73 | |
74 | // --- AliRoot header files --- | |
75 | ||
7acf6008 | 76 | #include "AliRun.h" |
77 | #include "AliGenerator.h" | |
78 | #include "AliPHOS.h" | |
26d4b141 | 79 | #include "AliPHOSPIDv1.h" |
7acf6008 | 80 | #include "AliPHOSClusterizerv1.h" |
6ad0bfa0 | 81 | #include "AliPHOSTrackSegment.h" |
7acf6008 | 82 | #include "AliPHOSTrackSegmentMakerv1.h" |
6ad0bfa0 | 83 | #include "AliPHOSRecParticle.h" |
84 | ||
26d4b141 | 85 | ClassImp( AliPHOSPIDv1) |
6ad0bfa0 | 86 | |
1cb7c1ee | 87 | //____________________________________________________________________________ |
88 | AliPHOSPIDv1::AliPHOSPIDv1():AliPHOSPID() | |
89 | { | |
7acf6008 | 90 | fIsInitialized = kFALSE ; |
91 | } | |
92 | ||
93 | //____________________________________________________________________________ | |
94 | AliPHOSPIDv1::AliPHOSPIDv1(const char * headeFile,const char * tsBranchTitle):AliPHOSPID() | |
95 | { | |
96 | ||
97 | fHeaderFileName = headeFile ; | |
98 | ||
99 | fTSTitle = tsBranchTitle ; | |
100 | ||
101 | SetName("AliPHOSPID") ; | |
102 | SetTitle("version1") ; | |
103 | ||
104 | TFile * file = (TFile*) gROOT->GetFile(fHeaderFileName.Data() ) ; | |
105 | ||
106 | if(file == 0){ | |
107 | file = new TFile(fHeaderFileName.Data(),"update") ; | |
108 | gAlice = (AliRun *) file->Get("gAlice") ; | |
109 | } | |
110 | ||
111 | AliPHOS * phos = (AliPHOS *) gAlice->GetDetector("PHOS") ; | |
112 | fGeom = AliPHOSGeometry::GetInstance(phos->GetGeometry()->GetName(),phos->GetGeometry()->GetTitle() ); | |
113 | ||
114 | fTrackSegments = new TClonesArray("AliPHOSTrackSegment",1) ; | |
115 | fTSMaker = 0 ; | |
116 | fEmcRecPoints = new TObjArray(1) ; | |
117 | fCpvRecPoints = new TObjArray(1) ; | |
118 | fClusterizer = 0 ; | |
119 | fRecParticles = new TClonesArray("AliPHOSRecParticle",100) ; | |
120 | ||
121 | fFormula = new TFormula("LambdaCuts","(x>1)*(x<3)*(y>0)*(y<x)") ; | |
122 | ||
123 | // add Task to //root/Tasks folder | |
124 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
125 | roottasks->Add(this) ; | |
126 | ||
127 | fDispersion = 2.0; | |
128 | fCpvEmcDistance = 3.0 ; | |
129 | fIsInitialized = kTRUE ; | |
130 | ||
131 | } | |
132 | //____________________________________________________________________________ | |
133 | AliPHOSPIDv1::~AliPHOSPIDv1() | |
134 | { | |
135 | ||
136 | } | |
137 | //____________________________________________________________________________ | |
138 | void AliPHOSPIDv1::Init() | |
139 | { | |
140 | if(!fIsInitialized){ | |
141 | if(fHeaderFileName.IsNull()) | |
142 | fHeaderFileName = "galice.root" ; | |
143 | ||
144 | TFile * file = (TFile*) gROOT->GetFile(fHeaderFileName.Data() ) ; | |
145 | ||
146 | if(file == 0){ | |
147 | file = new TFile(fHeaderFileName.Data(),"update") ; | |
148 | gAlice = (AliRun *) file->Get("gAlice") ; | |
149 | } | |
150 | ||
151 | AliPHOS * phos = (AliPHOS *) gAlice->GetDetector("PHOS") ; | |
152 | fGeom = AliPHOSGeometry::GetInstance(phos->GetGeometry()->GetName(),phos->GetGeometry()->GetTitle() ); | |
153 | ||
154 | fTrackSegments = new TClonesArray("AliPHOSTrackSegment",1) ; | |
155 | fTSMaker = new AliPHOSTrackSegmentMakerv1() ; | |
156 | fEmcRecPoints = new TObjArray(1) ; | |
157 | fCpvRecPoints = new TObjArray(1) ; | |
158 | fClusterizer = new AliPHOSClusterizerv1() ; | |
159 | fRecParticles = new TClonesArray("AliPHOSRecParticle",100) ; | |
160 | ||
161 | fFormula = new TFormula("LambdaCuts","(x>1)*(x<2.5)*(y>0)*(y<x)") ; | |
162 | ||
163 | // add Task to //root/Tasks folder | |
164 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
165 | roottasks->Add(this) ; | |
166 | ||
167 | fDispersion = 2.0; | |
168 | fCpvEmcDistance = 3.0 ; | |
169 | ||
170 | fIsInitialized = kTRUE ; | |
171 | } | |
172 | ||
173 | ||
1cb7c1ee | 174 | } |
7acf6008 | 175 | //____________________________________________________________________________ |
176 | Bool_t AliPHOSPIDv1::ReadTrackSegments() | |
177 | { | |
178 | //Fist read Track Segment Branch and extract RecPointsBranch from fTSMaker | |
179 | ||
180 | fTrackSegments->Clear() ; | |
181 | fEmcRecPoints->Clear() ; | |
182 | fCpvRecPoints->Clear() ; | |
183 | fRecParticles->Clear() ; | |
184 | ||
185 | gAlice->GetEvent(fNEvent) ; | |
186 | ||
187 | TTree * treeR = gAlice->TreeR() ; | |
188 | ||
189 | if(treeR==0){ | |
190 | char treeName[20]; | |
191 | sprintf(treeName,"TreeR%d",fNEvent); | |
192 | cout << "Error in AliPHOSClusterizerv1 : no "<<treeName << endl ; | |
193 | cout << " Do nothing " << endl ; | |
194 | return kFALSE ; | |
195 | } | |
196 | ||
197 | //first read TSMaker branch and extract information about RecPoints Branches | |
198 | TBranch * tsMakerBranch = 0; | |
199 | TBranch * tsBranch = 0; | |
200 | ||
201 | TObjArray * branches = treeR->GetListOfBranches() ; | |
202 | Int_t ibranch; | |
203 | Bool_t tsMakerNotFound = kTRUE ; | |
204 | Bool_t tsNotFound = kTRUE ; | |
205 | ||
206 | for(ibranch = 0;(ibranch <branches->GetEntries())&&(tsMakerNotFound||tsNotFound);ibranch++){ | |
207 | if(tsMakerNotFound){ | |
208 | tsMakerBranch=(TBranch *) branches->At(ibranch) ; | |
209 | if( fTSTitle.CompareTo(tsMakerBranch->GetTitle())==0 ) | |
210 | if( strcmp(tsMakerBranch->GetName(),"AliPHOSTrackSegmentMaker") == 0) | |
211 | tsMakerNotFound = kFALSE ; | |
212 | } | |
213 | if(tsNotFound){ | |
214 | tsBranch=(TBranch *) branches->At(ibranch) ; | |
215 | if( fTSTitle.CompareTo(tsBranch->GetTitle())==0 ) | |
216 | if( strcmp(tsBranch->GetName(),"PHOSTS") == 0) | |
217 | tsNotFound = kFALSE ; | |
218 | } | |
219 | } | |
220 | ||
221 | if(tsMakerNotFound ||tsNotFound ){ | |
222 | cout << "Can't find Branch with TrackSegmentMaker and TrackSegments " ; | |
223 | cout << "Do nothing" <<endl ; | |
224 | return kFALSE ; | |
225 | } | |
226 | ||
227 | tsMakerBranch->SetAddress(&fTSMaker) ; | |
228 | tsBranch->SetAddress(&fTrackSegments) ; | |
229 | ||
230 | treeR->GetEvent(0) ; | |
231 | ||
232 | fRecPointsTitle = fTSMaker->GetRecPointsBranch() ; | |
1cb7c1ee | 233 | |
7acf6008 | 234 | //reading now recponts branches |
235 | TBranch * emcBranch = 0; | |
236 | TBranch * cpvBranch = 0; | |
237 | TBranch * cluBranch = 0; | |
238 | ||
239 | Bool_t emcNotFound = kTRUE ; | |
240 | Bool_t cpvNotFound = kTRUE ; | |
241 | Bool_t cluNotFound = kTRUE ; | |
242 | ||
243 | for(ibranch = 0;(ibranch <branches->GetEntries())&&(emcNotFound||cpvNotFound||cluNotFound);ibranch++){ | |
244 | if(emcNotFound){ | |
245 | emcBranch=(TBranch *) branches->At(ibranch) ; | |
246 | if( fRecPointsTitle.CompareTo(emcBranch->GetTitle())==0 ) | |
247 | if( strcmp(emcBranch->GetName(),"PHOSEmcRP") == 0) | |
248 | emcNotFound = kFALSE ; | |
249 | } | |
250 | if(cpvNotFound){ | |
251 | cpvBranch=(TBranch *) branches->At(ibranch) ; | |
252 | if( fRecPointsTitle.CompareTo(cpvBranch->GetTitle())==0 ) | |
253 | if( strcmp(cpvBranch->GetName(),"PHOSCpvRP") == 0) | |
254 | cpvNotFound = kFALSE ; | |
255 | } | |
256 | if(cluNotFound){ | |
257 | cluBranch=(TBranch *) branches->At(ibranch) ; | |
258 | if( fRecPointsTitle.CompareTo(cluBranch->GetTitle())==0 ) | |
259 | if( strcmp(cluBranch->GetName(),"AliPHOSClusterizer") == 0) | |
260 | cluNotFound = kFALSE ; | |
261 | } | |
262 | } | |
263 | ||
264 | if(emcNotFound ||cpvNotFound ||cluNotFound ){ | |
265 | cout << "Can't find Branch with RecPoints or AliPHOSClusterizer " ; | |
266 | cout << "Do nothing" <<endl ; | |
267 | return kFALSE ; | |
268 | } | |
269 | ||
270 | emcBranch->SetAddress(&fEmcRecPoints) ; | |
271 | cpvBranch->SetAddress(&fCpvRecPoints) ; | |
272 | cluBranch->SetAddress(&fClusterizer) ; | |
273 | ||
274 | treeR->GetEvent(0) ; | |
275 | return kTRUE ; | |
276 | ||
277 | ||
278 | ||
279 | } | |
69183710 | 280 | //____________________________________________________________________________ |
7acf6008 | 281 | Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const |
69183710 | 282 | { |
283 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
284 | ||
69183710 | 285 | TVector3 vecEmc ; |
7acf6008 | 286 | TVector3 vecCpv ; |
287 | ||
288 | emc->GetLocalPosition(vecEmc) ; | |
289 | cpv->GetLocalPosition(vecCpv) ; | |
290 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ | |
291 | ||
292 | // Correct to difference in CPV and EMC position due to different distance to center. | |
293 | // we assume, that particle moves from center | |
294 | Float_t dCPV = fGeom->GetIPtoOuterCoverDistance(); | |
295 | Float_t dEMC = fGeom->GetIPtoCrystalSurface() ; | |
296 | dEMC = dEMC / dCPV ; | |
297 | vecCpv = dEMC * vecCpv - vecEmc ; | |
298 | if (Axis == "X") return vecCpv.X(); | |
299 | if (Axis == "Y") return vecCpv.Y(); | |
300 | if (Axis == "Z") return vecCpv.Z(); | |
301 | if (Axis == "R") return vecCpv.Mag(); | |
302 | } | |
303 | ||
304 | return 100000000 ; | |
69183710 | 305 | } |
306 | ||
6ad0bfa0 | 307 | //____________________________________________________________________________ |
7acf6008 | 308 | void AliPHOSPIDv1::Exec(Option_t * option) |
6ad0bfa0 | 309 | { |
7acf6008 | 310 | if(!fIsInitialized) |
311 | Init() ; | |
312 | ||
313 | if(strstr(option,"tim")) | |
314 | gBenchmark->Start("PHOSPID"); | |
315 | ||
316 | ||
317 | Int_t nEvents = (Int_t) gAlice->TreeE()->GetEntries() ; | |
318 | ||
319 | for(fNEvent = 0 ;fNEvent <nEvents; fNEvent++){ | |
320 | if(!ReadTrackSegments()) | |
321 | return ; | |
322 | MakeRecParticles() ; | |
323 | WriteRecParticles(); | |
324 | if(strstr(option,"deb")) | |
325 | PrintRecParticles(option) ; | |
326 | } | |
327 | ||
328 | if(strstr(option,"tim")){ | |
329 | gBenchmark->Stop("PHOSPID"); | |
330 | cout << "AliPHOSPID:" << endl ; | |
331 | cout << " took " << gBenchmark->GetCpuTime("PHOSPID") << " seconds for PID " | |
332 | << gBenchmark->GetCpuTime("PHOSPID")/nEvents << " seconds per event " << endl ; | |
333 | cout << endl ; | |
334 | } | |
335 | ||
336 | } | |
337 | //____________________________________________________________________________ | |
338 | void AliPHOSPIDv1::MakeRecParticles(){ | |
339 | ||
b2a60966 | 340 | // Makes a RecParticle out of a TrackSegment |
6ad0bfa0 | 341 | |
7acf6008 | 342 | TIter next(fTrackSegments) ; |
343 | AliPHOSTrackSegment * ts ; | |
6ad0bfa0 | 344 | Int_t index = 0 ; |
09fc14a0 | 345 | AliPHOSRecParticle * rp ; |
7acf6008 | 346 | |
347 | Bool_t ellips = fIDOptions.Contains("ell",TString::kIgnoreCase ) ; | |
348 | Bool_t disp = fIDOptions.Contains("dis",TString::kIgnoreCase ) ; | |
349 | ||
350 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { | |
fad3e5b9 | 351 | |
7acf6008 | 352 | new( (*fRecParticles)[index] ) AliPHOSRecParticle() ; |
353 | rp = (AliPHOSRecParticle *)fRecParticles->At(index) ; | |
354 | rp->SetTraskSegment(index) ; | |
355 | ||
356 | AliPHOSEmcRecPoint * emc = 0 ; | |
357 | if(ts->GetEmcIndex()>=0) | |
358 | emc = (AliPHOSEmcRecPoint *) fEmcRecPoints->At(ts->GetEmcIndex()) ; | |
fad3e5b9 | 359 | |
7acf6008 | 360 | AliPHOSRecPoint * cpv = 0 ; |
361 | if(ts->GetCpvIndex()>=0) | |
362 | cpv = (AliPHOSRecPoint *) fCpvRecPoints->At(ts->GetCpvIndex()) ; | |
fad3e5b9 | 363 | |
7acf6008 | 364 | AliPHOSRecPoint * ppsd = 0 ; |
365 | if(ts->GetPpsdIndex()>=0) | |
366 | ppsd= (AliPHOSRecPoint *) fCpvRecPoints->At(ts->GetPpsdIndex()) ; | |
367 | ||
368 | //set momentum and energy first | |
369 | Float_t e = emc->GetEnergy() ; | |
370 | TVector3 dir = GetMomentumDirection(emc,cpv,ppsd) ; | |
371 | dir.SetMag(e) ; | |
372 | ||
373 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ; | |
374 | rp->SetCalcMass(0); | |
375 | ||
376 | //now set type (reconstructed) of the particle | |
377 | Int_t showerprofile = 0; // 0 narrow and 1 wide | |
fad3e5b9 | 378 | |
7acf6008 | 379 | if(ellips){ |
380 | Float_t lambda[2] ; | |
381 | emc->GetElipsAxis(lambda) ; | |
382 | if(fFormula->Eval(lambda[0],lambda[1]) <= 0 ) | |
383 | showerprofile = 1 ; // not narrow | |
1cb7c1ee | 384 | } |
fad3e5b9 | 385 | |
7acf6008 | 386 | if(disp) |
387 | if(emc->GetDispersion() > fDispersion ) | |
388 | showerprofile = 1 ; // not narrow | |
389 | ||
390 | ||
2aad621e | 391 | // Looking at the photon conversion detector |
7acf6008 | 392 | Int_t pcdetector= 0 ; //1 hit and 0 no hit |
393 | if(ppsd) | |
394 | if(GetDistance(emc, ppsd, "R") < fCpvEmcDistance) | |
395 | pcdetector = 1 ; | |
396 | ||
397 | // Looking at the CPV detector | |
398 | Int_t cpvdetector= 0 ; //1 hit and 0 no hit | |
399 | if(cpv) | |
400 | if(GetDistance(emc, cpv, "R") < fCpvEmcDistance) | |
401 | cpvdetector = 1 ; | |
402 | ||
403 | Int_t type = showerprofile + 2 * pcdetector + 4 * cpvdetector ; | |
09fc14a0 | 404 | rp->SetType(type) ; |
6ad0bfa0 | 405 | index++ ; |
406 | } | |
7acf6008 | 407 | |
6ad0bfa0 | 408 | } |
409 | ||
09fc14a0 | 410 | //____________________________________________________________________________ |
7acf6008 | 411 | void AliPHOSPIDv1:: Print(Option_t * option) const |
09fc14a0 | 412 | { |
b2a60966 | 413 | // Print the parameters used for the particle type identification |
414 | ||
7acf6008 | 415 | cout << "AliPHOSPIDv1 : cuts for the particle idendification based on the shower profile " << endl ; |
416 | ||
417 | cout << "Eliptic cuts function " << endl ; | |
418 | cout << " " << fFormula->GetTitle() << endl ; | |
09fc14a0 | 419 | |
420 | } | |
421 | ||
422 | //____________________________________________________________________________ | |
7acf6008 | 423 | void AliPHOSPIDv1::SetShowerProfileCut(char * formula){ |
424 | //set shape of the cut on the axis of ellipce, drown around shouer | |
425 | //shower considered "narrow" if Formula(lambda[0],lambda[1]) > 0. | |
426 | if(fFormula) | |
427 | delete fFormula; | |
428 | fFormula = new TF2("Lambda Cut",formula,0,3,0,3) ; | |
429 | } | |
430 | //____________________________________________________________________________ | |
431 | void AliPHOSPIDv1::WriteRecParticles() | |
09fc14a0 | 432 | { |
b2a60966 | 433 | |
7acf6008 | 434 | //check, if these branches already exist |
435 | TBranch * pidBranch = 0; | |
436 | TBranch * rpBranch = 0; | |
437 | ||
438 | TObjArray * branches = gAlice->TreeR()->GetListOfBranches() ; | |
439 | Int_t ibranch; | |
440 | Bool_t pidNotFound = kTRUE ; | |
441 | Bool_t rpNotFound = kTRUE ; | |
442 | ||
443 | for(ibranch = 0;(ibranch <branches->GetEntries())&& pidNotFound && rpNotFound;ibranch++){ | |
444 | if(pidNotFound){ | |
445 | pidBranch=(TBranch *) branches->At(ibranch) ; | |
446 | if( (strcmp(pidBranch->GetName(),"PHOSPID") == 0) && | |
447 | (fRecparticlesTitle.CompareTo(pidBranch->GetTitle()) == 0) ) | |
448 | pidNotFound = kFALSE ; | |
449 | } | |
450 | if(rpNotFound){ | |
451 | rpBranch=(TBranch *) branches->At(ibranch) ; | |
452 | if( (strcmp(rpBranch->GetName(),"PHOSRP") == 0) && | |
453 | (fRecparticlesTitle.CompareTo(rpBranch->GetTitle())==0 )) | |
454 | rpNotFound = kFALSE ; | |
455 | } | |
456 | } | |
457 | ||
458 | if(!pidNotFound || !rpNotFound) { | |
459 | cout << "AliPHOSPIDv1 error: " << endl ; | |
460 | cout << " Branch PHOSRP and PHOSPID with title '"<<fRecparticlesTitle.Data()<<"' already exist "<< endl ; | |
461 | cout << " can not overwrite " << endl ; | |
462 | return ; | |
463 | } | |
69183710 | 464 | |
7acf6008 | 465 | //Make branch in TreeR for TrackSegments |
466 | char * filename = 0; | |
467 | if(gSystem->Getenv("CONFIG_SPLIT_FILE")!=0){ //generating file name | |
468 | filename = new char[strlen(gAlice->GetBaseFile())+20] ; | |
469 | sprintf(filename,"%s/PHOS.Reco.root",gAlice->GetBaseFile()) ; | |
470 | } | |
471 | ||
472 | TDirectory *cwd = gDirectory; | |
473 | ||
474 | //First rp | |
475 | Int_t bufferSize = 32000 ; | |
476 | rpBranch = gAlice->TreeR()->Branch("PHOSRP",&fRecParticles,bufferSize); | |
477 | rpBranch->SetTitle(fRecparticlesTitle.Data()); | |
478 | if (filename) { | |
479 | rpBranch->SetFile(filename); | |
480 | TIter next( rpBranch->GetListOfBranches()); | |
481 | while ((rpBranch=(TBranch*)next())) { | |
482 | rpBranch->SetFile(filename); | |
483 | } | |
484 | cwd->cd(); | |
485 | } | |
486 | ||
487 | //second, pid | |
488 | Int_t splitlevel = 0 ; | |
489 | AliPHOSPIDv1 * pid = this ; | |
490 | pidBranch = gAlice->TreeR()->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel); | |
491 | pidBranch->SetTitle(fRecparticlesTitle.Data()); | |
492 | if (filename) { | |
493 | pidBranch->SetFile(filename); | |
494 | TIter next( pidBranch->GetListOfBranches()); | |
495 | while ((pidBranch=(TBranch*)next())) { | |
496 | pidBranch->SetFile(filename); | |
497 | } | |
498 | cwd->cd(); | |
499 | } | |
500 | ||
501 | gAlice->TreeR()->Fill() ; | |
502 | gAlice->TreeR()->Write(0,kOverwrite) ; | |
503 | ||
504 | } | |
69183710 | 505 | //____________________________________________________________________________ |
7acf6008 | 506 | void AliPHOSPIDv1::PlotDispersionCuts()const |
69183710 | 507 | { |
7acf6008 | 508 | TCanvas* lambdas = new TCanvas("lambdas","Cuts on the elipse axise",200,10,700,500); |
509 | ||
510 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ){ | |
511 | TF2 * ell = new TF2("Elliptic Cuts",fFormula->GetName(),0,3,0,3) ; | |
512 | ell->SetMinimum(0.0000001) ; | |
513 | ell->SetMaximum(0.001) ; | |
514 | ell->SetLineStyle(1) ; | |
515 | ell->SetLineWidth(2) ; | |
516 | ell->Draw() ; | |
517 | } | |
518 | ||
519 | if( fIDOptions.Contains("dis",TString::kIgnoreCase ) ){ | |
520 | TF2 * dsp = new TF2("dispersion","(y<x)*(x*x+y*y < [0]*[0])",0,3,0,3) ; | |
521 | dsp->SetParameter(0,fDispersion) ; | |
522 | dsp->SetMinimum(0.0000001) ; | |
523 | dsp->SetMaximum(0.001) ; | |
524 | dsp->SetLineStyle(1) ; | |
525 | dsp->SetLineColor(2) ; | |
526 | dsp->SetLineWidth(2) ; | |
527 | dsp->SetNpx(200) ; | |
528 | dsp->SetNpy(200) ; | |
529 | if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ) | |
530 | dsp->Draw("same") ; | |
531 | else | |
532 | dsp->Draw() ; | |
533 | } | |
534 | lambdas->Update(); | |
535 | } | |
69183710 | 536 | |
7acf6008 | 537 | //____________________________________________________________________________ |
538 | TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv,AliPHOSRecPoint * ppsd)const | |
539 | { | |
540 | // Calculates the momentum direction: | |
541 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
542 | // 2. if a EMC RecPoint and one PPSD RecPoint, direction is given by the line through the 2 recpoints | |
543 | // 3. if a EMC RecPoint and two PPSD RecPoints, dirrection is given by the average line through | |
544 | // the 2 pairs of recpoints | |
545 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
546 | // in case 1. | |
547 | ||
548 | TVector3 dir(0,0,0) ; | |
549 | ||
550 | TVector3 emcglobalpos ; | |
551 | TMatrix dummy ; | |
552 | ||
553 | emc->GetGlobalPosition(emcglobalpos, dummy) ; | |
554 | ||
69183710 | 555 | |
7acf6008 | 556 | // The following commeneted code becomes valid once the PPSD provides |
557 | // a reasonable position resolution, at least as good as EMC ! | |
558 | // TVector3 ppsdlglobalpos ; | |
559 | // TVector3 ppsduglobalpos ; | |
560 | // if( fPpsdLowRecPoint ){ // certainly a photon that has concerted | |
561 | // fPpsdLowRecPoint->GetGlobalPosition(ppsdlglobalpos, mdummy) ; | |
562 | // dir = emcglobalpos - ppsdlglobalpos ; | |
563 | // if( fPpsdUpRecPoint ){ // not looks like a charged | |
564 | // fPpsdUpRecPoint->GetGlobalPosition(ppsduglobalpos, mdummy) ; | |
565 | // dir = ( dir + emcglobalpos - ppsduglobalpos ) * 0.5 ; | |
566 | // } | |
567 | // } | |
568 | // else { // looks like a neutral | |
569 | // dir = emcglobalpos ; | |
570 | // } | |
571 | ||
572 | dir = emcglobalpos ; | |
573 | dir.SetZ( -dir.Z() ) ; // why ? | |
574 | dir.SetMag(1.) ; | |
575 | ||
576 | //account correction to the position of IP | |
577 | Float_t xo,yo,zo ; //Coordinates of the origin | |
578 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; | |
579 | TVector3 origin(xo,yo,zo); | |
580 | dir = dir - origin ; | |
581 | ||
582 | return dir ; | |
583 | } | |
584 | //____________________________________________________________________________ | |
585 | void AliPHOSPIDv1::PrintRecParticles(Option_t * option){ | |
586 | ||
587 | cout << "AliPHOSPIDv1: " << endl ; | |
588 | cout << " found " << fRecParticles->GetEntriesFast() << " RecParticles " << endl ; | |
589 | ||
590 | if(strstr(option,"all")) { // printing found TS | |
591 | ||
592 | cout << " PARTICLE " | |
593 | << " Index " << endl ; | |
594 | // << " X " | |
595 | // << " Y " | |
596 | // << " Z " | |
597 | // << " # of primaries " | |
598 | // << " Primaries list " << endl; | |
599 | ||
600 | Int_t index ; | |
601 | for (index = 0 ; index < fRecParticles->GetEntries() ; index++) { | |
602 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) fRecParticles->At(index) ; | |
603 | ||
604 | Text_t particle[11]; | |
605 | switch(rp->GetType()) { | |
606 | case AliPHOSFastRecParticle::kNEUTRALEM: | |
607 | strcpy( particle, "NEUTRAL_EM"); | |
608 | break; | |
609 | case AliPHOSFastRecParticle::kNEUTRALHA: | |
610 | strcpy(particle, "NEUTRAL_HA"); | |
611 | break; | |
612 | case AliPHOSFastRecParticle::kGAMMA: | |
613 | strcpy(particle, "GAMMA"); | |
614 | break ; | |
615 | case AliPHOSFastRecParticle::kGAMMAHA: | |
616 | strcpy(particle, "GAMMA_H"); | |
617 | break ; | |
618 | case AliPHOSFastRecParticle::kABSURDEM: | |
619 | strcpy(particle, "ABSURD_EM") ; | |
620 | break ; | |
621 | case AliPHOSFastRecParticle::kABSURDHA: | |
622 | strcpy(particle, "ABSURD_HA") ; | |
623 | break ; | |
624 | case AliPHOSFastRecParticle::kELECTRON: | |
625 | strcpy(particle, "ELECTRON") ; | |
626 | break ; | |
627 | case AliPHOSFastRecParticle::kCHARGEDHA: | |
628 | strcpy(particle, "CHARGED_HA") ; | |
629 | break ; | |
630 | } | |
631 | ||
632 | // Int_t * primaries; | |
633 | // Int_t nprimaries; | |
634 | // primaries = rp->GetPrimaries(nprimaries); | |
635 | ||
636 | cout << setw(15) << particle << " " | |
637 | << setw(3) << rp->GetIndexInList() << " " ; | |
638 | // << setw(4) << nprimaries << " "; | |
639 | // for (Int_t iprimary=0; iprimary<nprimaries; iprimary++) | |
640 | // cout << setw(4) << primaries[iprimary] << " "; | |
641 | cout << endl; | |
642 | } | |
643 | cout << "-------------------------------------------" << endl ; | |
644 | } | |
645 | ||
69183710 | 646 | } |
647 | ||
7acf6008 | 648 | |
649 |