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a2b90f83 | 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 | /* | |
17 | $Log$ | |
a1c3aded | 18 | Revision 1.3 2001/11/14 10:50:46 cblume |
19 | Changes in digits IO. Add merging of summable digits | |
20 | ||
abaf1f1d | 21 | Revision 1.2 2001/11/06 17:19:41 cblume |
22 | Add detailed geometry and simple simulator | |
23 | ||
16bf9884 | 24 | Revision 1.1 2001/05/07 08:08:05 cblume |
25 | Update of TRD code | |
26 | ||
a2b90f83 | 27 | */ |
28 | ||
29 | /////////////////////////////////////////////////////////////////////////////// | |
30 | // // | |
16bf9884 | 31 | // The TRD particle identification base class // |
a2b90f83 | 32 | // // |
33 | // Its main purposes are: // | |
16bf9884 | 34 | // - Provide I/O framework for all neccessary files // |
a2b90f83 | 35 | // - Assignment of a e/pi propability to a given track // |
36 | // // | |
37 | /////////////////////////////////////////////////////////////////////////////// | |
38 | ||
39 | #include <stdlib.h> | |
40 | #include <math.h> | |
41 | ||
42 | #include <TROOT.h> | |
43 | #include <TH1.h> | |
44 | #include <TObjArray.h> | |
45 | #include <TTree.h> | |
46 | #include <TFile.h> | |
47 | #include <TParticle.h> | |
48 | ||
49 | #include "AliRun.h" | |
50 | #include "AliTRD.h" | |
51 | #include "AliTRDpid.h" | |
52 | #include "AliTRDcluster.h" | |
53 | #include "AliTRDtrack.h" | |
54 | #include "AliTRDtracker.h" | |
55 | #include "AliTRDgeometry.h" | |
56 | ||
57 | ClassImp(AliTRDpid) | |
58 | ||
59 | //_____________________________________________________________________________ | |
60 | AliTRDpid::AliTRDpid():TNamed() | |
61 | { | |
62 | // | |
63 | // AliTRDpid default constructor | |
64 | // | |
65 | ||
16bf9884 | 66 | fTrackArray = NULL; |
67 | fClusterArray = NULL; | |
68 | fGeometry = NULL; | |
69 | fFileKine = NULL; | |
a2b90f83 | 70 | |
16bf9884 | 71 | fPIDratioMin = 0.0; |
72 | fPIDpurePoints = kFALSE; | |
73 | fPIDindexMin = 0; | |
74 | fPIDindexMax = 0; | |
75 | ||
abaf1f1d | 76 | fEvent = 0; |
77 | ||
16bf9884 | 78 | fThreePadOnly = kFALSE; |
a2b90f83 | 79 | |
80 | } | |
81 | ||
82 | //_____________________________________________________________________________ | |
83 | AliTRDpid::AliTRDpid(const char* name, const char* title):TNamed(name,title) | |
84 | { | |
85 | // | |
86 | // AliTRDpid constructor | |
87 | // | |
88 | ||
a2b90f83 | 89 | fTrackArray = NULL; |
90 | fClusterArray = NULL; | |
91 | fGeometry = NULL; | |
16bf9884 | 92 | fFileKine = NULL; |
a2b90f83 | 93 | |
abaf1f1d | 94 | fEvent = 0; |
95 | ||
a2b90f83 | 96 | Init(); |
97 | ||
98 | } | |
99 | ||
100 | //_____________________________________________________________________________ | |
101 | AliTRDpid::AliTRDpid(const AliTRDpid &p) | |
102 | { | |
103 | // | |
104 | // AliTRDpid copy constructor | |
105 | // | |
106 | ||
107 | ((AliTRDpid &) p).Copy(*this); | |
108 | ||
109 | } | |
110 | ||
111 | //_____________________________________________________________________________ | |
112 | AliTRDpid::~AliTRDpid() | |
113 | { | |
114 | // | |
115 | // AliTRDpid destructor | |
116 | // | |
117 | ||
118 | if (fClusterArray) { | |
119 | fClusterArray->Delete(); | |
120 | delete fClusterArray; | |
abaf1f1d | 121 | fClusterArray = NULL; |
a2b90f83 | 122 | } |
123 | ||
124 | if (fTrackArray) { | |
125 | fTrackArray->Delete(); | |
126 | delete fTrackArray; | |
abaf1f1d | 127 | fTrackArray = NULL; |
a2b90f83 | 128 | } |
129 | ||
a1c3aded | 130 | if (fFileKine) { |
131 | delete fFileKine; | |
132 | fFileKine = NULL; | |
133 | } | |
a2b90f83 | 134 | |
135 | } | |
136 | ||
137 | //_____________________________________________________________________________ | |
138 | AliTRDpid &AliTRDpid::operator=(const AliTRDpid &p) | |
139 | { | |
140 | // | |
141 | // Assignment operator | |
142 | // | |
143 | ||
144 | if (this != &p) ((AliTRDpid &) p).Copy(*this); | |
145 | return *this; | |
146 | ||
147 | } | |
148 | ||
149 | //_____________________________________________________________________________ | |
150 | void AliTRDpid::Copy(TObject &p) | |
151 | { | |
152 | // | |
153 | // Copy function | |
154 | // | |
155 | ||
16bf9884 | 156 | ((AliTRDpid &) p).fTrackArray = NULL; |
157 | ((AliTRDpid &) p).fClusterArray = NULL; | |
158 | ((AliTRDpid &) p).fGeometry = NULL; | |
159 | ((AliTRDpid &) p).fFileKine = NULL; | |
160 | ((AliTRDpid &) p).fPIDratioMin = fPIDratioMin; | |
161 | ((AliTRDpid &) p).fPIDpurePoints = fPIDpurePoints; | |
162 | ((AliTRDpid &) p).fPIDindexMin = fPIDindexMin; | |
163 | ((AliTRDpid &) p).fPIDindexMax = fPIDindexMax; | |
164 | ((AliTRDpid &) p).fThreePadOnly = fThreePadOnly; | |
abaf1f1d | 165 | ((AliTRDpid &) p).fEvent = fEvent; |
a2b90f83 | 166 | |
167 | } | |
168 | ||
169 | //_____________________________________________________________________________ | |
170 | Bool_t AliTRDpid::Init() | |
171 | { | |
172 | // | |
173 | // Initializes the PID object | |
174 | // | |
175 | ||
16bf9884 | 176 | fClusterArray = new TObjArray(); |
177 | fTrackArray = new TObjArray(); | |
178 | ||
179 | fPIDratioMin = 0.7; | |
180 | fPIDpurePoints = kTRUE; | |
181 | fPIDindexMin = -1; | |
182 | fPIDindexMax = -1; | |
183 | ||
184 | fThreePadOnly = kFALSE; | |
a2b90f83 | 185 | |
186 | return kTRUE; | |
187 | ||
188 | } | |
189 | ||
190 | //_____________________________________________________________________________ | |
16bf9884 | 191 | Bool_t AliTRDpid::AssignLikelihood() |
a2b90f83 | 192 | { |
193 | // | |
16bf9884 | 194 | // Assigns the e / pi likelihood to all tracks. |
a2b90f83 | 195 | // |
196 | ||
16bf9884 | 197 | return AssignLikelihood(fTrackArray); |
a2b90f83 | 198 | |
199 | } | |
200 | ||
201 | //_____________________________________________________________________________ | |
16bf9884 | 202 | Bool_t AliTRDpid::AssignLikelihood(TObjArray *tarray) |
a2b90f83 | 203 | { |
204 | // | |
16bf9884 | 205 | // Assigns the e / pi likelihood to all tracks in the array <tarray>. |
a2b90f83 | 206 | // |
207 | ||
16bf9884 | 208 | Bool_t status = kTRUE; |
a2b90f83 | 209 | |
16bf9884 | 210 | AliTRDtrack *track; |
a2b90f83 | 211 | |
16bf9884 | 212 | TIter nextTrack(tarray); |
213 | while ((track = (AliTRDtrack *) nextTrack())) { | |
214 | if (!AssignLikelihood(track)) { | |
215 | status = kFALSE; | |
216 | continue; | |
217 | } | |
218 | } | |
a2b90f83 | 219 | |
16bf9884 | 220 | return status; |
a2b90f83 | 221 | |
222 | } | |
223 | ||
224 | //_____________________________________________________________________________ | |
16bf9884 | 225 | Bool_t AliTRDpid::FillSpectra() |
a2b90f83 | 226 | { |
227 | // | |
16bf9884 | 228 | // Fills the energy loss distributions with all tracks. |
a2b90f83 | 229 | // |
230 | ||
16bf9884 | 231 | return FillSpectra(fTrackArray); |
a2b90f83 | 232 | |
233 | } | |
16bf9884 | 234 | |
a2b90f83 | 235 | //_____________________________________________________________________________ |
16bf9884 | 236 | Bool_t AliTRDpid::FillSpectra(TObjArray *tarray) |
a2b90f83 | 237 | { |
238 | // | |
16bf9884 | 239 | // Fills the energy loss distributions with all tracks in <tarray>. |
a2b90f83 | 240 | // |
241 | ||
242 | Bool_t status = kTRUE; | |
243 | ||
244 | AliTRDtrack *track; | |
245 | ||
16bf9884 | 246 | TIter nextTrack(tarray); |
a2b90f83 | 247 | while ((track = (AliTRDtrack *) nextTrack())) { |
16bf9884 | 248 | if (!FillSpectra(track)) { |
a2b90f83 | 249 | status = kFALSE; |
16bf9884 | 250 | continue; |
a2b90f83 | 251 | } |
252 | } | |
253 | ||
254 | return kTRUE; | |
255 | ||
256 | } | |
257 | ||
258 | //_____________________________________________________________________________ | |
259 | Bool_t AliTRDpid::Open(const Char_t *name, Int_t event) | |
260 | { | |
261 | // | |
16bf9884 | 262 | // Opens and reads the kine tree, the geometry, the cluster array |
263 | // and the track array from the file <name>. | |
a2b90f83 | 264 | // |
265 | ||
266 | Bool_t status = kTRUE; | |
267 | ||
a2b90f83 | 268 | status = ReadCluster(name); |
269 | status = ReadTracks(name); | |
16bf9884 | 270 | status = ReadKine(name,event); |
a2b90f83 | 271 | |
272 | return status; | |
273 | ||
274 | } | |
275 | ||
276 | //_____________________________________________________________________________ | |
277 | Bool_t AliTRDpid::Open(const Char_t *namekine | |
278 | , const Char_t *namecluster | |
279 | , const Char_t *nametracks | |
280 | , Int_t event) | |
281 | { | |
282 | // | |
283 | // Opens and reads the kine tree and the geometry from file <namekine>, | |
284 | // the cluster array from file <namecluster>, | |
16bf9884 | 285 | // and the track array from the file <nametracks>. |
a2b90f83 | 286 | // |
287 | ||
288 | Bool_t status = kTRUE; | |
289 | ||
a2b90f83 | 290 | status = ReadCluster(namecluster); |
291 | status = ReadTracks(nametracks); | |
16bf9884 | 292 | status = ReadKine(namekine,event); |
a2b90f83 | 293 | |
294 | return status; | |
295 | ||
296 | } | |
297 | ||
298 | //_____________________________________________________________________________ | |
299 | Bool_t AliTRDpid::ReadKine(const Char_t *name, Int_t event) | |
300 | { | |
301 | // | |
302 | // Opens and reads the kine tree and the geometry from the file <name>. | |
303 | // | |
304 | ||
16bf9884 | 305 | TFile *fFileKine = (TFile *) gROOT->GetListOfFiles()->FindObject(name); |
306 | if (!fFileKine) { | |
a2b90f83 | 307 | printf("AliTRDpid::ReadKine -- "); |
308 | printf("Open file %s\n",name); | |
16bf9884 | 309 | fFileKine = new TFile(name); |
310 | if (!fFileKine) { | |
a2b90f83 | 311 | printf("AliTRDpid::ReadKine -- "); |
312 | printf("Cannot open file %s\n",name); | |
313 | return kFALSE; | |
314 | } | |
315 | } | |
316 | ||
16bf9884 | 317 | gAlice = (AliRun *) fFileKine->Get("gAlice"); |
a2b90f83 | 318 | if (!gAlice) { |
319 | printf("AliTRDpid::ReadKine -- "); | |
320 | printf("No AliRun object found\n"); | |
321 | return kFALSE; | |
322 | } | |
323 | gAlice->GetEvent(event); | |
324 | ||
325 | AliTRD *trd = (AliTRD *) gAlice->GetDetector("TRD"); | |
326 | if (!trd) { | |
327 | printf("AliTRDpid::ReadKine -- "); | |
328 | printf("No TRD object found\n"); | |
329 | return kFALSE; | |
330 | } | |
331 | ||
332 | fGeometry = trd->GetGeometry(); | |
333 | if (!fGeometry) { | |
334 | printf("AliTRDpid::ReadKine -- "); | |
335 | printf("No TRD geometry found\n"); | |
336 | return kFALSE; | |
337 | } | |
338 | ||
abaf1f1d | 339 | fEvent = event; |
340 | ||
a2b90f83 | 341 | return kTRUE; |
342 | ||
343 | } | |
344 | ||
345 | //_____________________________________________________________________________ | |
346 | Bool_t AliTRDpid::ReadCluster(const Char_t *name) | |
347 | { | |
348 | // | |
349 | // Opens and reads the cluster array from the file <name>. | |
350 | // | |
16bf9884 | 351 | |
352 | TDirectory *savedir = gDirectory; | |
a2b90f83 | 353 | |
16bf9884 | 354 | if (fClusterArray) { |
355 | fClusterArray->Delete(); | |
356 | } | |
357 | else { | |
358 | fClusterArray = new TObjArray(); | |
359 | } | |
a2b90f83 | 360 | |
361 | printf("AliTRDpid::ReadCluster -- "); | |
362 | printf("Open file %s\n",name); | |
363 | ||
364 | AliTRDtracker *tracker = new AliTRDtracker("dummy","dummy"); | |
365 | tracker->ReadClusters(fClusterArray,name); | |
366 | ||
367 | if (!fClusterArray) { | |
368 | printf("AliTRDpid::ReadCluster -- "); | |
369 | printf("Error reading the cluster array from file %s\n",name); | |
370 | return kFALSE; | |
371 | } | |
372 | ||
373 | delete tracker; | |
374 | ||
16bf9884 | 375 | savedir->cd(); |
376 | ||
a2b90f83 | 377 | return kTRUE; |
378 | ||
379 | } | |
380 | ||
381 | //_____________________________________________________________________________ | |
382 | Bool_t AliTRDpid::ReadTracks(const Char_t *name) | |
383 | { | |
384 | // | |
385 | // Opens and reads the track array from the file <name>. | |
386 | // | |
16bf9884 | 387 | |
388 | TDirectory *savedir = gDirectory; | |
a2b90f83 | 389 | |
16bf9884 | 390 | if (fTrackArray) { |
391 | fTrackArray->Delete(); | |
392 | } | |
393 | else { | |
394 | fTrackArray = new TObjArray(); | |
395 | } | |
a2b90f83 | 396 | |
397 | TFile *file = (TFile *) gROOT->GetListOfFiles()->FindObject(name); | |
398 | if (!file) { | |
399 | printf("AliTRDpid::ReadTracks -- "); | |
400 | printf("Open file %s\n",name); | |
401 | file = new TFile(name); | |
402 | if (!file) { | |
403 | printf("AliTRDpid::ReadTracks -- "); | |
404 | printf("Cannot open file %s\n",name); | |
405 | return kFALSE; | |
406 | } | |
407 | } | |
408 | ||
abaf1f1d | 409 | Char_t treeName[12]; |
410 | sprintf(treeName,"TreeT%d_TRD",fEvent); | |
411 | TTree *trackTree = (TTree *) file->Get(treeName); | |
a2b90f83 | 412 | TBranch *trackBranch = trackTree->GetBranch("tracks"); |
413 | ||
414 | Int_t nEntry = ((Int_t) trackTree->GetEntries()); | |
415 | for (Int_t iEntry = 0; iEntry < nEntry; iEntry++) { | |
416 | AliTRDtrack *track = new AliTRDtrack(); | |
417 | trackBranch->SetAddress(&track); | |
418 | trackTree->GetEvent(iEntry); | |
419 | fTrackArray->AddLast(track); | |
420 | } | |
421 | ||
422 | file->Close(); | |
423 | ||
16bf9884 | 424 | savedir->cd(); |
a2b90f83 | 425 | |
16bf9884 | 426 | return kTRUE; |
a2b90f83 | 427 | |
428 | } | |
429 | ||
430 | //_____________________________________________________________________________ | |
16bf9884 | 431 | Int_t AliTRDpid::MCpid(const AliTRDtrack *t) |
a2b90f83 | 432 | { |
433 | // | |
16bf9884 | 434 | // Determines the pid of the MC track <t>. |
a2b90f83 | 435 | // |
436 | ||
437 | // PDG codes | |
438 | const Int_t kPdgEl = 11; | |
439 | const Int_t kPdgPi = 211; | |
440 | ||
a2b90f83 | 441 | AliTRDcluster *cluster; |
442 | TParticle *particle; | |
443 | ||
16bf9884 | 444 | Int_t nClusterEl = 0; |
445 | Int_t nClusterPi = 0; | |
446 | Int_t nClusterPure = 0; | |
447 | Int_t nClusterMix = 0; | |
a2b90f83 | 448 | |
16bf9884 | 449 | Float_t ratioEl = 0; |
450 | Float_t ratioPi = 0; | |
a2b90f83 | 451 | |
16bf9884 | 452 | Int_t ipid = -1; |
a2b90f83 | 453 | |
454 | if (!fClusterArray) { | |
16bf9884 | 455 | printf("AliTRDpid::MCpid -- "); |
a2b90f83 | 456 | printf("ClusterArray not defined. Initialize the PID object first\n"); |
457 | return -1; | |
458 | } | |
459 | ||
460 | // Loop through all clusters associated to this track | |
461 | Int_t nCluster = t->GetNclusters(); | |
462 | for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) { | |
463 | ||
464 | // Get a cluster | |
465 | Int_t index = t->GetClusterIndex(iCluster); | |
466 | if (!(cluster = (AliTRDcluster *) fClusterArray->UncheckedAt(index))) { | |
467 | break; | |
468 | } | |
469 | ||
470 | // Get the first two MC track indices | |
471 | Int_t track0 = cluster->GetTrackIndex(0); | |
472 | Int_t track1 = cluster->GetTrackIndex(1); | |
16bf9884 | 473 | |
474 | // Check on the track index to find the right primaries | |
475 | if ((track0 > fPIDindexMin) && | |
476 | (track0 <= fPIDindexMax)) { | |
477 | ||
478 | // Check whether it is a pure cluster, i.e. not overlapping | |
479 | Bool_t accept = kTRUE; | |
480 | if ((fPIDpurePoints) && (track1 != -1)) { | |
481 | accept = kFALSE; | |
482 | } | |
483 | if (accept) { | |
484 | ||
485 | particle = gAlice->Particle(track0); | |
486 | if (particle->GetFirstMother() == -1) { | |
487 | switch (TMath::Abs(particle->GetPdgCode())) { | |
488 | case kPdgEl: | |
489 | nClusterEl++; | |
490 | break; | |
491 | case kPdgPi: | |
492 | nClusterPi++; | |
493 | break; | |
494 | }; | |
495 | nClusterPure++; | |
496 | } | |
497 | ||
498 | } | |
499 | else { | |
500 | ||
501 | nClusterMix++; | |
502 | ||
503 | } | |
a2b90f83 | 504 | |
505 | } | |
506 | ||
507 | } | |
508 | ||
509 | if (nCluster) { | |
510 | ratioEl = ((Float_t) nClusterEl) / ((Float_t) nCluster); | |
511 | ratioPi = ((Float_t) nClusterPi) / ((Float_t) nCluster); | |
16bf9884 | 512 | if (ratioEl > fPIDratioMin) { |
a2b90f83 | 513 | ipid = kElectron; |
514 | } | |
16bf9884 | 515 | else if (ratioPi > fPIDratioMin) { |
a2b90f83 | 516 | ipid = kPion; |
517 | } | |
518 | } | |
16bf9884 | 519 | // printf("AliTRDpid::MCpid -- "); |
520 | // printf("nCluster = %d, nClusterEl = %d, nClusterPi = %d\n" | |
521 | // ,nCluster,nClusterEl,nClusterPi); | |
522 | // printf("AliTRDpid::MCpid -- "); | |
523 | // printf("nClusterPure = %d, nClusterMix = %d\n" | |
524 | // ,nClusterPure,nClusterMix); | |
525 | // printf("AliTRDpid::MCpid -- "); | |
526 | // printf("ratioEl = %f, ratioPi = %f, ipid = %d\n",ratioEl,ratioPi,ipid); | |
a2b90f83 | 527 | |
528 | return ipid; | |
529 | ||
530 | } | |
531 | ||
532 | //_____________________________________________________________________________ | |
16bf9884 | 533 | Int_t AliTRDpid::MCpid(const AliTRDtrack *t, Int_t *pdg |
534 | , Int_t *nFound | |
535 | , Int_t *indices) | |
536 | { | |
537 | // | |
538 | // Determines the pid of the MC track <t>. | |
539 | // Returns the number of different MC particles that contribute to this | |
540 | // track. <pdg> contains their PDG code, ordered by their frequency. | |
541 | // <nFound> contains the corresponding number of cluster that contain | |
542 | // contributions to this cluster. | |
543 | // | |
544 | ||
545 | const Int_t kNtrack = 3; | |
546 | const Int_t kNpart = 200; | |
547 | ||
548 | AliTRDcluster *cluster; | |
549 | TParticle *particle; | |
550 | ||
551 | Int_t nPart = 0; | |
552 | Int_t iPart = 0; | |
553 | Int_t iTrack = 0; | |
554 | Int_t iCluster = 0; | |
555 | ||
556 | if (!fClusterArray) { | |
557 | printf("AliTRDpid::MCpid -- "); | |
558 | printf("ClusterArray not defined. Initialize the PID object first\n"); | |
559 | return -1; | |
560 | } | |
561 | ||
562 | Int_t sort[kNpart]; | |
563 | Int_t pdgTmp[kNpart]; | |
564 | Int_t nFoundTmp[kNpart]; | |
565 | Int_t indicesTmp[kNpart]; | |
566 | for (iPart = 0; iPart < kNpart; iPart++) { | |
567 | pdg[iPart] = 0; | |
568 | nFound[iPart] = 0; | |
569 | indices[iPart] = 0; | |
570 | pdgTmp[iPart] = 0; | |
571 | nFoundTmp[iPart] = 0; | |
572 | indicesTmp[iPart] = 0; | |
573 | sort[iPart] = 0; | |
574 | } | |
575 | ||
576 | // Loop through all clusters associated to this track | |
577 | Int_t nCluster = t->GetNclusters(); | |
578 | for (iCluster = 0; iCluster < nCluster; iCluster++) { | |
579 | ||
580 | // Get a cluster | |
581 | Int_t index = t->GetClusterIndex(iCluster); | |
582 | if (!(cluster = (AliTRDcluster *) fClusterArray->UncheckedAt(index))) { | |
583 | break; | |
584 | } | |
585 | ||
586 | // Get the MC track indices | |
587 | for (iTrack = 0; iTrack < kNtrack; iTrack++) { | |
588 | ||
589 | Int_t trackIndex = cluster->GetTrackIndex(iTrack); | |
590 | if (trackIndex >= 0) { | |
591 | particle = gAlice->Particle(trackIndex); | |
592 | Int_t pdgCode = particle->GetPdgCode(); | |
593 | Bool_t newPart = kTRUE; | |
594 | for (iPart = 0; iPart < nPart; iPart++) { | |
595 | if (trackIndex == indicesTmp[iPart]) { | |
596 | nFoundTmp[iPart]++; | |
597 | newPart = kFALSE; | |
598 | break; | |
599 | } | |
600 | } | |
601 | if ((newPart) && (nPart < kNpart)) { | |
602 | indicesTmp[nPart] = trackIndex; | |
603 | pdgTmp[nPart] = pdgCode; | |
604 | nFoundTmp[nPart]++; | |
605 | nPart++; | |
606 | } | |
607 | } | |
608 | ||
609 | } | |
610 | ||
611 | } | |
612 | ||
613 | // Sort the arrays by the frequency of the appearance of a MC track | |
614 | TMath::Sort(nPart,nFoundTmp,sort,kTRUE); | |
615 | for (iPart = 0; iPart < nPart; iPart++) { | |
616 | pdg[iPart] = pdgTmp[sort[iPart]]; | |
617 | nFound[iPart] = nFoundTmp[sort[iPart]]; | |
618 | indices[iPart] = indicesTmp[sort[iPart]]; | |
619 | // printf(" iPart = %d, pdg = %d, nFound = %d, indices = %d\n" | |
620 | // ,iPart,pdg[iPart],nFound[iPart],indices[iPart]); | |
621 | } | |
622 | ||
623 | return nPart; | |
624 | ||
625 | } | |
626 | ||
627 | //_____________________________________________________________________________ | |
628 | Bool_t AliTRDpid::SumCharge(const AliTRDtrack *t | |
629 | , Float_t *charge | |
630 | , Int_t *nCluster) | |
a2b90f83 | 631 | { |
632 | // | |
633 | // Sums up the charge in each plane for track <t>. | |
634 | // | |
635 | ||
636 | Bool_t status = kTRUE; | |
637 | ||
638 | AliTRDcluster *cluster; | |
639 | ||
640 | const Int_t kNplane = AliTRDgeometry::Nplan(); | |
641 | for (Int_t iPlane = 0; iPlane < kNplane; iPlane++) { | |
16bf9884 | 642 | charge[iPlane] = 0.0; |
643 | nCluster[iPlane] = 0; | |
a2b90f83 | 644 | } |
645 | ||
646 | if (!fClusterArray) { | |
647 | printf("AliTRDpid::SumCharge -- "); | |
648 | printf("ClusterArray not defined. Initialize the PID object first\n"); | |
649 | return kFALSE; | |
650 | } | |
651 | if (!fGeometry) { | |
652 | printf("AliTRDpid::SumCharge -- "); | |
653 | printf("TRD geometry not defined. Initialize the PID object first\n"); | |
654 | return kFALSE; | |
655 | } | |
656 | ||
657 | // Loop through all clusters associated to this track | |
16bf9884 | 658 | Int_t nClus = t->GetNclusters(); |
659 | for (Int_t iClus = 0; iClus < nClus; iClus++) { | |
a2b90f83 | 660 | |
661 | // Get a cluster | |
16bf9884 | 662 | Int_t index = t->GetClusterIndex(iClus); |
a2b90f83 | 663 | if (!(cluster = (AliTRDcluster *) fClusterArray->UncheckedAt(index))) { |
664 | status = kFALSE; | |
665 | break; | |
666 | } | |
667 | ||
16bf9884 | 668 | if (fThreePadOnly) { |
669 | if ((!cluster->From2pad()) && | |
670 | (!cluster->From3pad())) continue; | |
671 | } | |
672 | ||
a2b90f83 | 673 | // Sum up the charge |
674 | Int_t plane = fGeometry->GetPlane(cluster->GetDetector()); | |
16bf9884 | 675 | //charge[plane] += cluster->GetQ(); |
676 | // Corrected charge | |
677 | charge[plane] += t->GetClusterdQdl(iClus); | |
678 | nCluster[plane]++; | |
a2b90f83 | 679 | |
680 | } | |
16bf9884 | 681 | // printf("AliTRDpid::SumCharge -- "); |
682 | // printf("charge = %d, %d, %d, %d, %d, %d\n" | |
683 | // ,(Int_t) charge[0] | |
684 | // ,(Int_t) charge[1] | |
685 | // ,(Int_t) charge[2] | |
686 | // ,(Int_t) charge[3] | |
687 | // ,(Int_t) charge[4] | |
688 | // ,(Int_t) charge[5]); | |
689 | // printf("AliTRDpid::SumCharge -- "); | |
690 | // printf("nCluster = %d, %d, %d, %d, %d, %d\n" | |
691 | // ,nCluster[0] | |
692 | // ,nCluster[1] | |
693 | // ,nCluster[2] | |
694 | // ,nCluster[3] | |
695 | // ,nCluster[4] | |
696 | // ,nCluster[5]); | |
a2b90f83 | 697 | |
698 | return status; | |
699 | ||
700 | } |