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596a855f | 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 | // // | |
20 | // class for running the reconstruction // | |
21 | // // | |
22 | // Clusters and tracks are created for all detectors and all events by // | |
23 | // typing: // | |
24 | // // | |
25 | // AliReconstruction rec; // | |
26 | // rec.Run(); // | |
27 | // // | |
28 | // The Run method returns kTRUE in case of successful execution. // | |
29 | // The name of the galice file can be changed from the default // | |
30 | // "galice.root" by // | |
31 | // // | |
32 | // rec.SetGAliceFile("..."); // | |
33 | // // | |
34 | // The reconstruction can be switched on or off for individual detectors by // | |
35 | // // | |
36 | // rec.SetRunReconstruction("..."); // | |
37 | // // | |
38 | // The argument is a (case sensitive) string with the names of the // | |
39 | // detectors separated by a space. The special string "ALL" selects all // | |
40 | // available detectors. This is the default. // | |
41 | // // | |
42 | // The tracking in ITS, TPC and TRD and the creation of ESD tracks can be // | |
43 | // switched off by // | |
44 | // // | |
45 | // rec.SetRunTracking(kFALSE); // | |
46 | // // | |
47 | // The filling of additional ESD information can be steered by // | |
48 | // // | |
49 | // rec.SetFillESD("..."); // | |
50 | // // | |
51 | // Again, the string specifies the list of detectors. The default is "ALL". // | |
52 | // // | |
53 | // The reconstruction requires digits as input. For the creation of digits // | |
54 | // have a look at the class AliSimulation. // | |
55 | // // | |
56 | /////////////////////////////////////////////////////////////////////////////// | |
57 | ||
58 | ||
59 | #include "AliReconstruction.h" | |
60 | #include "AliRunLoader.h" | |
61 | #include "AliRun.h" | |
62 | #include "AliModule.h" | |
63 | #include "AliDetector.h" | |
64 | #include "AliTracker.h" | |
65 | #include "AliESD.h" | |
66 | #include "AliHeader.h" | |
67 | #include "AliGenEventHeader.h" | |
68 | #include "AliESDpid.h" | |
a866ac60 | 69 | #include "AliMagF.h" |
596a855f | 70 | #include <TArrayF.h> |
71 | ||
72 | ||
73 | ClassImp(AliReconstruction) | |
74 | ||
75 | ||
76 | //_____________________________________________________________________________ | |
77 | AliReconstruction::AliReconstruction(const char* name, const char* title) : | |
78 | TNamed(name, title) | |
79 | { | |
80 | // create reconstruction object with default parameters | |
81 | ||
82 | Init(); | |
83 | } | |
84 | ||
85 | //_____________________________________________________________________________ | |
86 | AliReconstruction::AliReconstruction(const AliReconstruction& rec) : | |
87 | TNamed(rec) | |
88 | { | |
89 | // copy constructor | |
90 | ||
91 | fRunReconstruction = rec.fRunReconstruction; | |
92 | fRunTracking = rec.fRunTracking; | |
93 | fStopOnError = rec.fStopOnError; | |
94 | ||
95 | fGAliceFileName = rec.fGAliceFileName; | |
96 | ||
97 | fRunLoader = NULL; | |
98 | } | |
99 | ||
100 | //_____________________________________________________________________________ | |
101 | AliReconstruction& AliReconstruction::operator = (const AliReconstruction& rec) | |
102 | { | |
103 | // assignment operator | |
104 | ||
105 | this->~AliReconstruction(); | |
106 | new(this) AliReconstruction(rec); | |
107 | return *this; | |
108 | } | |
109 | ||
110 | //_____________________________________________________________________________ | |
111 | AliReconstruction::~AliReconstruction() | |
112 | { | |
113 | // clean up | |
114 | ||
115 | } | |
116 | ||
117 | //_____________________________________________________________________________ | |
118 | void AliReconstruction::Init() | |
119 | { | |
120 | // set default parameters | |
121 | ||
122 | fRunReconstruction = "ALL"; | |
123 | fRunTracking = kTRUE; | |
124 | fFillESD = "ALL"; | |
125 | fStopOnError = kFALSE; | |
126 | ||
127 | fGAliceFileName = "galice.root"; | |
128 | ||
129 | fRunLoader = NULL; | |
130 | } | |
131 | ||
132 | ||
133 | //_____________________________________________________________________________ | |
134 | void AliReconstruction::SetGAliceFile(const char* fileName) | |
135 | { | |
136 | // set the name of the galice file | |
137 | ||
138 | fGAliceFileName = fileName; | |
139 | } | |
140 | ||
141 | ||
142 | //_____________________________________________________________________________ | |
143 | Bool_t AliReconstruction::Run() | |
144 | { | |
145 | // run the reconstruction | |
146 | ||
147 | // open the run loader | |
148 | if (fRunLoader) delete fRunLoader; | |
149 | fRunLoader = AliRunLoader::Open(fGAliceFileName.Data()); | |
150 | if (!fRunLoader) { | |
151 | Error("Run", "no run loader found in file %s", | |
152 | fGAliceFileName.Data()); | |
153 | return kFALSE; | |
154 | } | |
155 | fRunLoader->LoadgAlice(); | |
156 | gAlice = fRunLoader->GetAliRun(); | |
157 | if (!gAlice) { | |
158 | Error("Run", "no gAlice object found in file %s", | |
159 | fGAliceFileName.Data()); | |
160 | return kFALSE; | |
161 | } | |
162 | ||
163 | // local reconstruction | |
164 | if (!fRunReconstruction.IsNull()) { | |
165 | if (!RunReconstruction(fRunReconstruction)) { | |
166 | if (fStopOnError) return kFALSE; | |
167 | } | |
168 | } | |
169 | if (!fRunTracking && fFillESD.IsNull()) return kTRUE; | |
170 | ||
171 | // get loaders and trackers | |
172 | fITSLoader = fRunLoader->GetLoader("ITSLoader"); | |
173 | if (!fITSLoader) { | |
174 | Error("Run", "no ITS loader found"); | |
175 | if (fStopOnError) return kFALSE; | |
176 | } | |
177 | fITSTracker = NULL; | |
178 | if (gAlice->GetDetector("ITS")) { | |
179 | fITSTracker = gAlice->GetDetector("ITS")->CreateTracker(); | |
180 | } | |
181 | if (!fITSTracker) { | |
182 | Error("Run", "couldn't create a tracker for ITS"); | |
183 | if (fStopOnError) return kFALSE; | |
184 | } | |
185 | ||
186 | fTPCLoader = fRunLoader->GetLoader("TPCLoader"); | |
187 | if (!fTPCLoader) { | |
188 | Error("Run", "no TPC loader found"); | |
189 | if (fStopOnError) return kFALSE; | |
190 | } | |
191 | fTPCTracker = NULL; | |
192 | if (gAlice->GetDetector("TPC")) { | |
193 | fTPCTracker = gAlice->GetDetector("TPC")->CreateTracker(); | |
194 | } | |
195 | if (!fTPCTracker) { | |
196 | Error("Run", "couldn't create a tracker for TPC"); | |
197 | if (fStopOnError) return kFALSE; | |
198 | } | |
199 | ||
200 | fTRDLoader = fRunLoader->GetLoader("TRDLoader"); | |
201 | if (!fTRDLoader) { | |
202 | Error("Run", "no TRD loader found"); | |
203 | if (fStopOnError) return kFALSE; | |
204 | } | |
205 | fTRDTracker = NULL; | |
206 | if (gAlice->GetDetector("TRD")) { | |
207 | fTRDTracker = gAlice->GetDetector("TRD")->CreateTracker(); | |
208 | } | |
209 | if (!fTRDTracker) { | |
210 | Error("Run", "couldn't create a tracker for TRD"); | |
211 | if (fStopOnError) return kFALSE; | |
212 | } | |
213 | ||
214 | fTOFLoader = fRunLoader->GetLoader("TOFLoader"); | |
215 | if (!fTOFLoader) { | |
216 | Error("Run", "no TOF loader found"); | |
217 | if (fStopOnError) return kFALSE; | |
218 | } | |
219 | fTOFTracker = NULL; | |
220 | if (gAlice->GetDetector("TOF")) { | |
221 | fTOFTracker = gAlice->GetDetector("TOF")->CreateTracker(); | |
222 | } | |
223 | if (!fTOFTracker) { | |
224 | Error("Run", "couldn't create a tracker for TOF"); | |
225 | if (fStopOnError) return kFALSE; | |
226 | } | |
227 | ||
228 | // create the ESD output file | |
229 | TFile* file = TFile::Open("AliESDs.root", "RECREATE"); | |
230 | if (!file->IsOpen()) { | |
231 | Error("Run", "opening AliESDs.root failed"); | |
232 | if (fStopOnError) return kFALSE; | |
233 | } | |
234 | ||
235 | // loop over events | |
236 | for (Int_t iEvent = 0; iEvent < fRunLoader->GetNumberOfEvents(); iEvent++) { | |
237 | Info("Run", "processing event %d", iEvent); | |
238 | AliESD* esd = new AliESD; | |
239 | fRunLoader->GetEvent(iEvent); | |
240 | esd->SetRunNumber(gAlice->GetRunNumber()); | |
241 | esd->SetEventNumber(gAlice->GetEvNumber()); | |
a866ac60 | 242 | esd->SetMagneticField(fRunLoader->GetAliRun()->Field()->SolenoidField()); |
596a855f | 243 | |
244 | // barrel tracking | |
245 | if (fRunTracking) { | |
246 | if (!RunTracking(esd)) { | |
247 | if (fStopOnError) return kFALSE; | |
248 | } | |
249 | } | |
250 | ||
251 | // fill ESD | |
252 | if (!fFillESD.IsNull()) { | |
253 | if (!FillESD(esd, fFillESD)) { | |
254 | if (fStopOnError) return kFALSE; | |
255 | } | |
256 | } | |
257 | ||
258 | // combined PID | |
259 | AliESDpid::MakePID(esd); | |
260 | ||
261 | // write ESD | |
262 | char name[100]; | |
263 | sprintf(name, "ESD%d", iEvent); | |
264 | file->cd(); | |
265 | if (!esd->Write(name)) { | |
266 | Error("Run", "writing ESD failed"); | |
267 | if (fStopOnError) return kFALSE; | |
268 | } | |
269 | } | |
270 | ||
271 | file->Close(); | |
272 | ||
273 | return kTRUE; | |
274 | } | |
275 | ||
276 | ||
277 | //_____________________________________________________________________________ | |
278 | Bool_t AliReconstruction::RunReconstruction(const TString& detectors) | |
279 | { | |
280 | // run the reconstruction | |
281 | ||
030b532d | 282 | TStopwatch stopwatch; |
283 | stopwatch.Start(); | |
284 | ||
596a855f | 285 | TString detStr = detectors; |
286 | TObjArray* detArray = gAlice->Detectors(); | |
287 | for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) { | |
288 | AliModule* det = (AliModule*) detArray->At(iDet); | |
289 | if (!det || !det->IsActive()) continue; | |
290 | if (IsSelected(det->GetName(), detStr)) { | |
291 | Info("RunReconstruction", "running reconstruction for %s", | |
292 | det->GetName()); | |
030b532d | 293 | TStopwatch stopwatchDet; |
294 | stopwatchDet.Start(); | |
596a855f | 295 | det->Reconstruct(); |
030b532d | 296 | Info("RunReconstruction", "execution time for %s:", det->GetName()); |
297 | stopwatchDet.Print(); | |
596a855f | 298 | } |
299 | } | |
300 | ||
301 | if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) { | |
302 | Error("RunReconstruction", "the following detectors were not found: %s", | |
303 | detStr.Data()); | |
304 | if (fStopOnError) return kFALSE; | |
305 | } | |
306 | ||
030b532d | 307 | Info("RunReconstruction", "execution time:"); |
308 | stopwatch.Print(); | |
309 | ||
596a855f | 310 | return kTRUE; |
311 | } | |
312 | ||
313 | //_____________________________________________________________________________ | |
314 | Bool_t AliReconstruction::RunTracking(AliESD* esd) | |
315 | { | |
316 | // run the barrel tracking | |
317 | ||
030b532d | 318 | TStopwatch stopwatch; |
319 | stopwatch.Start(); | |
320 | ||
596a855f | 321 | // get the primary vertex (from MC for the moment) |
322 | TArrayF vertex(3); | |
323 | fRunLoader->GetHeader()->GenEventHeader()->PrimaryVertex(vertex); | |
324 | Double_t vtxPos[3] = {vertex[0], vertex[1], vertex[2]}; | |
325 | Double_t vtxCov[6] = { | |
326 | 0.005, | |
327 | 0.000, 0.005, | |
328 | 0.000, 0.000, 0.010 | |
329 | }; | |
330 | Double_t vtxErr[3] = {vtxCov[0], vtxCov[2], vtxCov[5]}; // diag. elements | |
331 | esd->SetVertex(vtxPos, vtxCov); | |
332 | fITSTracker->SetVertex(vtxPos, vtxErr); | |
333 | fTPCTracker->SetVertex(vtxPos, vtxErr); | |
334 | fTRDTracker->SetVertex(vtxPos, vtxErr); | |
335 | ||
85555ca8 | 336 | // TPC tracking |
337 | Info("RunTracking", "TPC tracking"); | |
596a855f | 338 | fTPCLoader->LoadRecPoints("read"); |
339 | TTree* tpcTree = fTPCLoader->TreeR(); | |
340 | if (!tpcTree) { | |
341 | Error("RunTracking", "Can't get the TPC cluster tree"); | |
342 | return kFALSE; | |
343 | } | |
344 | fTPCTracker->LoadClusters(tpcTree); | |
345 | if (fTPCTracker->Clusters2Tracks(esd) != 0) { | |
85555ca8 | 346 | Error("RunTracking", "TPC Clusters2Tracks failed"); |
596a855f | 347 | return kFALSE; |
348 | } | |
349 | ||
85555ca8 | 350 | gAlice->GetDetector("TPC")->FillESD(esd); // preliminary PID |
351 | AliESDpid::MakePID(esd); // for the ITS tracker | |
352 | ||
353 | // ITS tracking | |
354 | Info("RunTracking", "ITS tracking"); | |
596a855f | 355 | fITSLoader->LoadRecPoints("read"); |
356 | TTree* itsTree = fITSLoader->TreeR(); | |
357 | if (!itsTree) { | |
358 | Error("RunTracking", "Can't get the ITS cluster tree"); | |
359 | return kFALSE; | |
360 | } | |
361 | fITSTracker->LoadClusters(itsTree); | |
362 | if (fITSTracker->Clusters2Tracks(esd) != 0) { | |
85555ca8 | 363 | Error("RunTracking", "ITS Clusters2Tracks failed"); |
596a855f | 364 | return kFALSE; |
365 | } | |
366 | ||
367 | // ITS back propagation | |
368 | Info("RunTracking", "ITS back propagation"); | |
369 | if (fITSTracker->PropagateBack(esd) != 0) { | |
370 | Error("RunTracking", "ITS backward propagation failed"); | |
371 | return kFALSE; | |
372 | } | |
373 | ||
374 | // TPC back propagation | |
375 | Info("RunTracking", "TPC back propagation"); | |
376 | if (fTPCTracker->PropagateBack(esd) != 0) { | |
377 | Error("RunTracking", "TPC backward propagation failed"); | |
378 | return kFALSE; | |
379 | } | |
380 | ||
381 | // TRD back propagation | |
382 | Info("RunTracking", "TRD back propagation"); | |
383 | fTRDLoader->LoadRecPoints("read"); | |
384 | TTree* trdTree = fTRDLoader->TreeR(); | |
385 | if (!trdTree) { | |
386 | Error("RunTracking", "Can't get the TRD cluster tree"); | |
387 | return kFALSE; | |
388 | } | |
389 | fTRDTracker->LoadClusters(trdTree); | |
390 | if (fTRDTracker->PropagateBack(esd) != 0) { | |
391 | Error("RunTracking", "TRD backward propagation failed"); | |
392 | return kFALSE; | |
393 | } | |
394 | ||
395 | // TOF back propagation | |
396 | Info("RunTracking", "TOF back propagation"); | |
397 | fTOFLoader->LoadDigits("read"); | |
398 | TTree* tofTree = fTOFLoader->TreeD(); | |
399 | if (!tofTree) { | |
400 | Error("RunTracking", "Can't get the TOF digits tree"); | |
401 | return kFALSE; | |
402 | } | |
403 | fTOFTracker->LoadClusters(tofTree); | |
404 | if (fTOFTracker->PropagateBack(esd) != 0) { | |
405 | Error("RunTracking", "TOF backward propagation failed"); | |
406 | return kFALSE; | |
407 | } | |
408 | fTOFTracker->UnloadClusters(); | |
409 | fTOFLoader->UnloadDigits(); | |
410 | ||
411 | // TRD inward refit | |
412 | Info("RunTracking", "TRD inward refit"); | |
413 | if (fTRDTracker->RefitInward(esd) != 0) { | |
414 | Error("RunTracking", "TRD inward refit failed"); | |
415 | return kFALSE; | |
416 | } | |
417 | fTRDTracker->UnloadClusters(); | |
418 | fTRDLoader->UnloadRecPoints(); | |
419 | ||
420 | // TPC inward refit | |
421 | Info("RunTracking", "TPC inward refit"); | |
422 | if (fTPCTracker->RefitInward(esd) != 0) { | |
423 | Error("RunTracking", "TPC inward refit failed"); | |
424 | return kFALSE; | |
425 | } | |
426 | fTPCTracker->UnloadClusters(); | |
427 | fTPCLoader->UnloadRecPoints(); | |
428 | ||
429 | // ITS inward refit | |
430 | Info("RunTracking", "ITS inward refit"); | |
431 | if (fITSTracker->RefitInward(esd) != 0) { | |
432 | Error("RunTracking", "ITS inward refit failed"); | |
433 | return kFALSE; | |
434 | } | |
435 | fITSTracker->UnloadClusters(); | |
436 | fITSLoader->UnloadRecPoints(); | |
437 | ||
030b532d | 438 | Info("RunTracking", "execution time:"); |
439 | stopwatch.Print(); | |
440 | ||
596a855f | 441 | return kTRUE; |
442 | } | |
443 | ||
444 | //_____________________________________________________________________________ | |
445 | Bool_t AliReconstruction::FillESD(AliESD* esd, const TString& detectors) | |
446 | { | |
447 | // fill the event summary data | |
448 | ||
030b532d | 449 | TStopwatch stopwatch; |
450 | stopwatch.Start(); | |
451 | ||
596a855f | 452 | TString detStr = detectors; |
453 | TObjArray* detArray = gAlice->Detectors(); | |
454 | for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) { | |
455 | AliModule* det = (AliModule*) detArray->At(iDet); | |
456 | if (!det || !det->IsActive()) continue; | |
457 | if (IsSelected(det->GetName(), detStr)) { | |
458 | Info("FillESD", "filling ESD for %s", | |
459 | det->GetName()); | |
460 | det->FillESD(esd); | |
461 | } | |
462 | } | |
463 | ||
464 | if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) { | |
465 | Error("FillESD", "the following detectors were not found: %s", | |
466 | detStr.Data()); | |
467 | if (fStopOnError) return kFALSE; | |
468 | } | |
469 | ||
030b532d | 470 | Info("FillESD", "execution time:"); |
471 | stopwatch.Print(); | |
472 | ||
596a855f | 473 | return kTRUE; |
474 | } | |
475 | ||
476 | ||
477 | //_____________________________________________________________________________ | |
478 | Bool_t AliReconstruction::IsSelected(TString detName, TString& detectors) const | |
479 | { | |
480 | // check whether detName is contained in detectors | |
481 | // if yes, it is removed from detectors | |
482 | ||
483 | // check if all detectors are selected | |
484 | if ((detectors.CompareTo("ALL") == 0) || | |
485 | detectors.BeginsWith("ALL ") || | |
486 | detectors.EndsWith(" ALL") || | |
487 | detectors.Contains(" ALL ")) { | |
488 | detectors = "ALL"; | |
489 | return kTRUE; | |
490 | } | |
491 | ||
492 | // search for the given detector | |
493 | Bool_t result = kFALSE; | |
494 | if ((detectors.CompareTo(detName) == 0) || | |
495 | detectors.BeginsWith(detName+" ") || | |
496 | detectors.EndsWith(" "+detName) || | |
497 | detectors.Contains(" "+detName+" ")) { | |
498 | detectors.ReplaceAll(detName, ""); | |
499 | result = kTRUE; | |
500 | } | |
501 | ||
502 | // clean up the detectors string | |
503 | while (detectors.Contains(" ")) detectors.ReplaceAll(" ", " "); | |
504 | while (detectors.BeginsWith(" ")) detectors.Remove(0, 1); | |
505 | while (detectors.EndsWith(" ")) detectors.Remove(detectors.Length()-1, 1); | |
506 | ||
507 | return result; | |
508 | } |