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1 | ||
2 | /************************************************************************** | |
3 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * * | |
5 | * Author: The ALICE Off-line Project. * | |
6 | * Contributors are mentioned in the code where appropriate. * | |
7 | * * | |
8 | * Permission to use, copy, modify and distribute this software and its * | |
9 | * documentation strictly for non-commercial purposes is hereby granted * | |
10 | * without fee, provided that the above copyright notice appears in all * | |
11 | * copies and that both the copyright notice and this permission notice * | |
12 | * appear in the supporting documentation. The authors make no claims * | |
13 | * about the suitability of this software for any purpose. It is * | |
14 | * provided "as is" without express or implied warranty. * | |
15 | **************************************************************************/ | |
16 | ||
17 | /* $Id$ */ | |
18 | ||
19 | /////////////////////////////////////////////////////////////////////////////// | |
20 | // // | |
21 | // TRD cluster finder // | |
22 | // // | |
23 | /////////////////////////////////////////////////////////////////////////////// | |
24 | ||
25 | #include <TF1.h> | |
26 | #include <TTree.h> | |
27 | #include <TH1.h> | |
28 | #include <TFile.h> | |
29 | #include <TObjArray.h> | |
30 | ||
31 | #include "AliRunLoader.h" | |
32 | #include "AliLoader.h" | |
33 | #include "AliRawReader.h" | |
34 | #include "AliLog.h" | |
35 | #include "AliAlignObj.h" | |
36 | ||
37 | #include "AliTRDclusterizer.h" | |
38 | #include "AliTRDcluster.h" | |
39 | #include "AliTRDReconstructor.h" | |
40 | #include "AliTRDgeometry.h" | |
41 | #include "AliTRDdataArrayF.h" | |
42 | #include "AliTRDdataArrayI.h" | |
43 | #include "AliTRDdataArrayS.h" | |
44 | #include "AliTRDdataArrayDigits.h" | |
45 | #include "AliTRDdigitsManager.h" | |
46 | #include "AliTRDrawData.h" | |
47 | #include "AliTRDcalibDB.h" | |
48 | #include "AliTRDrecoParam.h" | |
49 | #include "AliTRDCommonParam.h" | |
50 | #include "AliTRDtransform.h" | |
51 | #include "AliTRDSignalIndex.h" | |
52 | #include "AliTRDrawStreamBase.h" | |
53 | #include "AliTRDfeeParam.h" | |
54 | ||
55 | #include "Cal/AliTRDCalROC.h" | |
56 | #include "Cal/AliTRDCalDet.h" | |
57 | #include "Cal/AliTRDCalSingleChamberStatus.h" | |
58 | ||
59 | ClassImp(AliTRDclusterizer) | |
60 | ||
61 | //_____________________________________________________________________________ | |
62 | AliTRDclusterizer::AliTRDclusterizer() | |
63 | :TNamed() | |
64 | ,fRunLoader(NULL) | |
65 | ,fClusterTree(NULL) | |
66 | ,fRecPoints(NULL) | |
67 | ,fDigitsManager(NULL) | |
68 | ,fAddLabels(kTRUE) | |
69 | ,fRawVersion(2) | |
70 | ,fIndexesOut(NULL) | |
71 | ,fIndexesMaxima(NULL) | |
72 | ,fTransform(new AliTRDtransform(0)) | |
73 | ,fLUTbin(0) | |
74 | ,fLUT(NULL) | |
75 | { | |
76 | // | |
77 | // AliTRDclusterizer default constructor | |
78 | // | |
79 | ||
80 | fRawVersion = AliTRDfeeParam::Instance()->GetRAWversion(); | |
81 | ||
82 | } | |
83 | ||
84 | //_____________________________________________________________________________ | |
85 | AliTRDclusterizer::AliTRDclusterizer(const Text_t *name, const Text_t *title) | |
86 | :TNamed(name,title) | |
87 | ,fRunLoader(NULL) | |
88 | ,fClusterTree(NULL) | |
89 | ,fRecPoints(NULL) | |
90 | ,fDigitsManager(new AliTRDdigitsManager()) | |
91 | ,fAddLabels(kTRUE) | |
92 | ,fRawVersion(2) | |
93 | ,fIndexesOut(NULL) | |
94 | ,fIndexesMaxima(NULL) | |
95 | ,fTransform(new AliTRDtransform(0)) | |
96 | ,fLUTbin(0) | |
97 | ,fLUT(NULL) | |
98 | { | |
99 | // | |
100 | // AliTRDclusterizer constructor | |
101 | // | |
102 | ||
103 | fDigitsManager->CreateArrays(); | |
104 | ||
105 | fRawVersion = AliTRDfeeParam::Instance()->GetRAWversion(); | |
106 | ||
107 | FillLUT(); | |
108 | ||
109 | } | |
110 | ||
111 | //_____________________________________________________________________________ | |
112 | AliTRDclusterizer::AliTRDclusterizer(const AliTRDclusterizer &c) | |
113 | :TNamed(c) | |
114 | ,fRunLoader(NULL) | |
115 | ,fClusterTree(NULL) | |
116 | ,fRecPoints(NULL) | |
117 | ,fDigitsManager(NULL) | |
118 | ,fAddLabels(kTRUE) | |
119 | ,fRawVersion(2) | |
120 | ,fIndexesOut(NULL) | |
121 | ,fIndexesMaxima(NULL) | |
122 | ,fTransform(NULL) | |
123 | ,fLUTbin(0) | |
124 | ,fLUT(0) | |
125 | { | |
126 | // | |
127 | // AliTRDclusterizer copy constructor | |
128 | // | |
129 | ||
130 | FillLUT(); | |
131 | ||
132 | } | |
133 | ||
134 | //_____________________________________________________________________________ | |
135 | AliTRDclusterizer::~AliTRDclusterizer() | |
136 | { | |
137 | // | |
138 | // AliTRDclusterizer destructor | |
139 | // | |
140 | ||
141 | if (fRecPoints) | |
142 | { | |
143 | fRecPoints->Delete(); | |
144 | delete fRecPoints; | |
145 | } | |
146 | ||
147 | if (fDigitsManager) | |
148 | { | |
149 | delete fDigitsManager; | |
150 | fDigitsManager = NULL; | |
151 | } | |
152 | ||
153 | if (fIndexesOut) | |
154 | { | |
155 | delete fIndexesOut; | |
156 | fIndexesOut = NULL; | |
157 | } | |
158 | ||
159 | if (fIndexesMaxima) | |
160 | { | |
161 | delete fIndexesMaxima; | |
162 | fIndexesMaxima = NULL; | |
163 | } | |
164 | ||
165 | if (fTransform) | |
166 | { | |
167 | delete fTransform; | |
168 | fTransform = NULL; | |
169 | } | |
170 | ||
171 | if (fLUT) | |
172 | { | |
173 | delete [] fLUT; | |
174 | fLUT = NULL; | |
175 | } | |
176 | ||
177 | } | |
178 | ||
179 | //_____________________________________________________________________________ | |
180 | AliTRDclusterizer &AliTRDclusterizer::operator=(const AliTRDclusterizer &c) | |
181 | { | |
182 | // | |
183 | // Assignment operator | |
184 | // | |
185 | ||
186 | if (this != &c) | |
187 | { | |
188 | ((AliTRDclusterizer &) c).Copy(*this); | |
189 | } | |
190 | ||
191 | return *this; | |
192 | ||
193 | } | |
194 | ||
195 | //_____________________________________________________________________________ | |
196 | void AliTRDclusterizer::Copy(TObject &c) const | |
197 | { | |
198 | // | |
199 | // Copy function | |
200 | // | |
201 | ||
202 | ((AliTRDclusterizer &) c).fClusterTree = NULL; | |
203 | ((AliTRDclusterizer &) c).fRecPoints = NULL; | |
204 | ((AliTRDclusterizer &) c).fDigitsManager = NULL; | |
205 | ((AliTRDclusterizer &) c).fAddLabels = fAddLabels; | |
206 | ((AliTRDclusterizer &) c).fRawVersion = fRawVersion; | |
207 | ((AliTRDclusterizer &) c).fIndexesOut = NULL; | |
208 | ((AliTRDclusterizer &) c).fIndexesMaxima = NULL; | |
209 | ((AliTRDclusterizer &) c).fTransform = NULL; | |
210 | ((AliTRDclusterizer &) c).fLUTbin = 0; | |
211 | ((AliTRDclusterizer &) c).fLUT = NULL; | |
212 | ||
213 | } | |
214 | ||
215 | //_____________________________________________________________________________ | |
216 | Bool_t AliTRDclusterizer::Open(const Char_t *name, Int_t nEvent) | |
217 | { | |
218 | // | |
219 | // Opens the AliROOT file. Output and input are in the same file | |
220 | // | |
221 | ||
222 | TString evfoldname = AliConfig::GetDefaultEventFolderName(); | |
223 | fRunLoader = AliRunLoader::GetRunLoader(evfoldname); | |
224 | ||
225 | if (!fRunLoader) { | |
226 | fRunLoader = AliRunLoader::Open(name); | |
227 | } | |
228 | ||
229 | if (!fRunLoader) { | |
230 | AliError(Form("Can not open session for file %s.",name)); | |
231 | return kFALSE; | |
232 | } | |
233 | ||
234 | OpenInput(nEvent); | |
235 | OpenOutput(); | |
236 | ||
237 | return kTRUE; | |
238 | ||
239 | } | |
240 | ||
241 | //_____________________________________________________________________________ | |
242 | Bool_t AliTRDclusterizer::OpenOutput() | |
243 | { | |
244 | // | |
245 | // Open the output file | |
246 | // | |
247 | ||
248 | TObjArray *ioArray = 0; | |
249 | ||
250 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
251 | loader->MakeTree("R"); | |
252 | ||
253 | fClusterTree = loader->TreeR(); | |
254 | fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0); | |
255 | ||
256 | return kTRUE; | |
257 | ||
258 | } | |
259 | ||
260 | //_____________________________________________________________________________ | |
261 | Bool_t AliTRDclusterizer::OpenOutput(TTree *clusterTree) | |
262 | { | |
263 | // | |
264 | // Connect the output tree | |
265 | // | |
266 | ||
267 | TObjArray *ioArray = 0; | |
268 | ||
269 | fClusterTree = clusterTree; | |
270 | fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0); | |
271 | ||
272 | return kTRUE; | |
273 | ||
274 | } | |
275 | ||
276 | //_____________________________________________________________________________ | |
277 | Bool_t AliTRDclusterizer::OpenInput(Int_t nEvent) | |
278 | { | |
279 | // | |
280 | // Opens a ROOT-file with TRD-hits and reads in the digits-tree | |
281 | // | |
282 | ||
283 | // Import the Trees for the event nEvent in the file | |
284 | fRunLoader->GetEvent(nEvent); | |
285 | ||
286 | return kTRUE; | |
287 | ||
288 | } | |
289 | ||
290 | //_____________________________________________________________________________ | |
291 | Bool_t AliTRDclusterizer::WriteClusters(Int_t det) | |
292 | { | |
293 | // | |
294 | // Fills TRDcluster branch in the tree with the clusters | |
295 | // found in detector = det. For det=-1 writes the tree. | |
296 | // | |
297 | ||
298 | if ((det < -1) || | |
299 | (det >= AliTRDgeometry::Ndet())) { | |
300 | AliError(Form("Unexpected detector index %d.\n",det)); | |
301 | return kFALSE; | |
302 | } | |
303 | ||
304 | TBranch *branch = fClusterTree->GetBranch("TRDcluster"); | |
305 | if (!branch) { | |
306 | TObjArray *ioArray = 0; | |
307 | branch = fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0); | |
308 | } | |
309 | ||
310 | if ((det >= 0) && | |
311 | (det < AliTRDgeometry::Ndet())) { | |
312 | ||
313 | Int_t nRecPoints = RecPoints()->GetEntriesFast(); | |
314 | TObjArray *detRecPoints = new TObjArray(400); | |
315 | ||
316 | for (Int_t i = 0; i < nRecPoints; i++) { | |
317 | AliTRDcluster *c = (AliTRDcluster *) RecPoints()->UncheckedAt(i); | |
318 | if (det == c->GetDetector()) { | |
319 | detRecPoints->AddLast(c); | |
320 | } | |
321 | else { | |
322 | AliError(Form("Attempt to write a cluster with unexpected detector index: got=%d expected=%d\n" | |
323 | ,c->GetDetector() | |
324 | ,det)); | |
325 | } | |
326 | } | |
327 | ||
328 | branch->SetAddress(&detRecPoints); | |
329 | fClusterTree->Fill(); | |
330 | ||
331 | delete detRecPoints; | |
332 | ||
333 | return kTRUE; | |
334 | ||
335 | } | |
336 | ||
337 | if (det == -1) { | |
338 | ||
339 | AliInfo(Form("Writing the cluster tree %s for event %d." | |
340 | ,fClusterTree->GetName(),fRunLoader->GetEventNumber())); | |
341 | ||
342 | if (fRecPoints) { | |
343 | ||
344 | branch->SetAddress(&fRecPoints); | |
345 | ||
346 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); | |
347 | loader->WriteRecPoints("OVERWRITE"); | |
348 | ||
349 | } | |
350 | else { | |
351 | ||
352 | AliError("Cluster tree does not exist. Cannot write clusters.\n"); | |
353 | return kFALSE; | |
354 | ||
355 | } | |
356 | ||
357 | return kTRUE; | |
358 | ||
359 | } | |
360 | ||
361 | AliError(Form("Unexpected detector index %d.\n",det)); | |
362 | ||
363 | return kFALSE; | |
364 | ||
365 | } | |
366 | ||
367 | //_____________________________________________________________________________ | |
368 | void AliTRDclusterizer::ResetHelperIndexes(AliTRDSignalIndex *indexesIn) | |
369 | { | |
370 | // | |
371 | // Reset the helper indexes | |
372 | // | |
373 | ||
374 | if (fIndexesOut) | |
375 | { | |
376 | // carefull here - we assume that only row number may change - most probable | |
377 | if (indexesIn->GetNrow() <= fIndexesOut->GetNrow()) | |
378 | fIndexesOut->ResetContent(); | |
379 | else | |
380 | fIndexesOut->ResetContentConditional(indexesIn->GetNrow() | |
381 | , indexesIn->GetNcol() | |
382 | , indexesIn->GetNtime()); | |
383 | } | |
384 | else | |
385 | { | |
386 | fIndexesOut = new AliTRDSignalIndex(indexesIn->GetNrow() | |
387 | , indexesIn->GetNcol() | |
388 | , indexesIn->GetNtime()); | |
389 | } | |
390 | ||
391 | if (fIndexesMaxima) | |
392 | { | |
393 | // carefull here - we assume that only row number may change - most probable | |
394 | if (indexesIn->GetNrow() <= fIndexesMaxima->GetNrow()) | |
395 | { | |
396 | fIndexesMaxima->ResetContent(); | |
397 | } | |
398 | else | |
399 | { | |
400 | fIndexesMaxima->ResetContentConditional(indexesIn->GetNrow() | |
401 | , indexesIn->GetNcol() | |
402 | , indexesIn->GetNtime()); | |
403 | } | |
404 | } | |
405 | else | |
406 | { | |
407 | fIndexesMaxima = new AliTRDSignalIndex(indexesIn->GetNrow() | |
408 | , indexesIn->GetNcol() | |
409 | , indexesIn->GetNtime()); | |
410 | } | |
411 | ||
412 | } | |
413 | ||
414 | //_____________________________________________________________________________ | |
415 | Bool_t AliTRDclusterizer::ReadDigits() | |
416 | { | |
417 | // | |
418 | // Reads the digits arrays from the input aliroot file | |
419 | // | |
420 | ||
421 | if (!fRunLoader) { | |
422 | AliError("No run loader available"); | |
423 | return kFALSE; | |
424 | } | |
425 | ||
426 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
427 | if (!loader->TreeD()) { | |
428 | loader->LoadDigits(); | |
429 | } | |
430 | ||
431 | // Read in the digit arrays | |
432 | return (fDigitsManager->ReadDigits(loader->TreeD())); | |
433 | ||
434 | } | |
435 | ||
436 | //_____________________________________________________________________________ | |
437 | Bool_t AliTRDclusterizer::ReadDigits(TTree *digitsTree) | |
438 | { | |
439 | // | |
440 | // Reads the digits arrays from the input tree | |
441 | // | |
442 | ||
443 | // Read in the digit arrays | |
444 | return (fDigitsManager->ReadDigits(digitsTree)); | |
445 | ||
446 | } | |
447 | ||
448 | //_____________________________________________________________________________ | |
449 | Bool_t AliTRDclusterizer::ReadDigits(AliRawReader *rawReader) | |
450 | { | |
451 | // | |
452 | // Reads the digits arrays from the ddl file | |
453 | // | |
454 | ||
455 | AliTRDrawData raw; | |
456 | fDigitsManager = raw.Raw2Digits(rawReader); | |
457 | ||
458 | return kTRUE; | |
459 | ||
460 | } | |
461 | ||
462 | //_____________________________________________________________________________ | |
463 | Bool_t AliTRDclusterizer::MakeClusters() | |
464 | { | |
465 | // | |
466 | // Creates clusters from digits | |
467 | // | |
468 | ||
469 | // Propagate info from the digits manager | |
470 | if (fAddLabels == kTRUE) | |
471 | { | |
472 | fAddLabels = fDigitsManager->UsesDictionaries(); | |
473 | } | |
474 | ||
475 | Bool_t fReturn = kTRUE; | |
476 | for (Int_t i = 0; i < AliTRDgeometry::kNdet; i++) | |
477 | { | |
478 | ||
479 | AliTRDdataArrayDigits *digitsIn = (AliTRDdataArrayDigits*) fDigitsManager->GetDigits(i); | |
480 | // This is to take care of switched off super modules | |
481 | if (!digitsIn->HasData()) | |
482 | { | |
483 | continue; | |
484 | } | |
485 | digitsIn->Expand(); | |
486 | AliTRDSignalIndex* indexes = fDigitsManager->GetIndexes(i); | |
487 | if (indexes->IsAllocated() == kFALSE) | |
488 | { | |
489 | fDigitsManager->BuildIndexes(i); | |
490 | } | |
491 | ||
492 | Bool_t fR = kFALSE; | |
493 | if (indexes->HasEntry()) | |
494 | { | |
495 | if (fAddLabels) | |
496 | { | |
497 | for (Int_t iDict = 0; iDict < AliTRDdigitsManager::kNDict; iDict++) | |
498 | { | |
499 | AliTRDdataArrayI *tracksIn = 0; | |
500 | tracksIn = (AliTRDdataArrayI *) fDigitsManager->GetDictionary(i,iDict); | |
501 | tracksIn->Expand(); | |
502 | } | |
503 | } | |
504 | fR = MakeClusters(i); | |
505 | fReturn = fR && fReturn; | |
506 | } | |
507 | ||
508 | if (fR == kFALSE) | |
509 | { | |
510 | WriteClusters(i); | |
511 | ResetRecPoints(); | |
512 | } | |
513 | ||
514 | // No compress just remove | |
515 | fDigitsManager->RemoveDigits(i); | |
516 | fDigitsManager->RemoveDictionaries(i); | |
517 | fDigitsManager->ClearIndexes(i); | |
518 | ||
519 | } | |
520 | ||
521 | return fReturn; | |
522 | ||
523 | } | |
524 | ||
525 | //_____________________________________________________________________________ | |
526 | Bool_t AliTRDclusterizer::Raw2Clusters(AliRawReader *rawReader) | |
527 | { | |
528 | // | |
529 | // Creates clusters from raw data | |
530 | // | |
531 | ||
532 | return Raw2ClustersChamber(rawReader); | |
533 | ||
534 | } | |
535 | ||
536 | //_____________________________________________________________________________ | |
537 | Bool_t AliTRDclusterizer::Raw2ClustersChamber(AliRawReader *rawReader) | |
538 | { | |
539 | // | |
540 | // Creates clusters from raw data | |
541 | // | |
542 | ||
543 | // Create the digits manager | |
544 | if (!fDigitsManager) | |
545 | { | |
546 | fDigitsManager = new AliTRDdigitsManager(); | |
547 | fDigitsManager->CreateArrays(); | |
548 | } | |
549 | ||
550 | fDigitsManager->SetUseDictionaries(fAddLabels); | |
551 | ||
552 | AliTRDrawStreamBase *pinput = AliTRDrawStreamBase::GetRawStream(rawReader); | |
553 | AliTRDrawStreamBase &input = *pinput; | |
554 | ||
555 | AliInfo(Form("Stream version: %s", input.IsA()->GetName())); | |
556 | ||
557 | Int_t det = 0; | |
558 | while ((det = input.NextChamber(fDigitsManager)) >= 0) | |
559 | { | |
560 | Bool_t iclusterBranch = kFALSE; | |
561 | if (fDigitsManager->GetIndexes(det)->HasEntry()) | |
562 | { | |
563 | iclusterBranch = MakeClusters(det); | |
564 | } | |
565 | if (iclusterBranch == kFALSE) | |
566 | { | |
567 | WriteClusters(det); | |
568 | ResetRecPoints(); | |
569 | } | |
570 | fDigitsManager->RemoveDigits(det); | |
571 | fDigitsManager->RemoveDictionaries(det); | |
572 | fDigitsManager->ClearIndexes(det); | |
573 | } | |
574 | ||
575 | delete fDigitsManager; | |
576 | fDigitsManager = NULL; | |
577 | ||
578 | delete pinput; | |
579 | pinput = NULL; | |
580 | return kTRUE; | |
581 | ||
582 | } | |
583 | ||
584 | //_____________________________________________________________________________ | |
585 | UChar_t AliTRDclusterizer::GetStatus(Short_t &signal) | |
586 | { | |
587 | UChar_t status = 0; | |
588 | // check if pad is masked | |
589 | if(signal>0 && TESTBIT(signal, 10)){ | |
590 | CLRBIT(signal, 10); | |
591 | for(int ibit=0; ibit<4; ibit++){ | |
592 | if(TESTBIT(signal, 11+ibit)){ | |
593 | SETBIT(status, ibit); | |
594 | CLRBIT(signal, 11+ibit); | |
595 | } | |
596 | } | |
597 | } | |
598 | return status; | |
599 | } | |
600 | ||
601 | //_____________________________________________________________________________ | |
602 | Bool_t AliTRDclusterizer::MakeClusters(Int_t det) | |
603 | { | |
604 | // | |
605 | // Generates the cluster. | |
606 | // | |
607 | ||
608 | // Get the digits | |
609 | // digits should be expanded beforehand! | |
610 | // digitsIn->Expand(); | |
611 | AliTRDdataArrayDigits *digitsIn = (AliTRDdataArrayDigits *) fDigitsManager->GetDigits(det); | |
612 | ||
613 | // This is to take care of switched off super modules | |
614 | if (!digitsIn->HasData()) | |
615 | { | |
616 | return kFALSE; | |
617 | } | |
618 | ||
619 | AliTRDSignalIndex *indexesIn = fDigitsManager->GetIndexes(det); | |
620 | if (indexesIn->IsAllocated() == kFALSE) | |
621 | { | |
622 | AliError("Indexes do not exist!"); | |
623 | return kFALSE; | |
624 | } | |
625 | ||
626 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); | |
627 | if (!calibration) | |
628 | { | |
629 | AliFatal("No AliTRDcalibDB instance available\n"); | |
630 | return kFALSE; | |
631 | } | |
632 | ||
633 | // ADC thresholds | |
634 | // There is no ADC threshold anymore, and simParam should not be used in clusterizer. KO | |
635 | Float_t adcThreshold = 0; | |
636 | ||
637 | if (!AliTRDReconstructor::RecoParam()) | |
638 | { | |
639 | AliError("RecoParam does not exist\n"); | |
640 | return kFALSE; | |
641 | } | |
642 | ||
643 | // Threshold value for the maximum | |
644 | Float_t maxThresh = AliTRDReconstructor::RecoParam()->GetClusMaxThresh(); | |
645 | // Threshold value for the digit signal | |
646 | Float_t sigThresh = AliTRDReconstructor::RecoParam()->GetClusSigThresh(); | |
647 | ||
648 | // Iteration limit for unfolding procedure | |
649 | const Float_t kEpsilon = 0.01; | |
650 | const Int_t kNclus = 3; | |
651 | const Int_t kNsig = 5; | |
652 | ||
653 | Int_t iUnfold = 0; | |
654 | Double_t ratioLeft = 1.0; | |
655 | Double_t ratioRight = 1.0; | |
656 | ||
657 | Double_t padSignal[kNsig]; | |
658 | Double_t clusterSignal[kNclus]; | |
659 | ||
660 | Int_t istack = indexesIn->GetStack(); | |
661 | Int_t ilayer = indexesIn->GetLayer(); | |
662 | Int_t isector = indexesIn->GetSM(); | |
663 | ||
664 | // Start clustering in the chamber | |
665 | ||
666 | Int_t idet = AliTRDgeometry::GetDetector(ilayer,istack,isector); | |
667 | if (idet != det) | |
668 | { | |
669 | AliError("Strange Detector number Missmatch!"); | |
670 | return kFALSE; | |
671 | } | |
672 | ||
673 | // TRD space point transformation | |
674 | fTransform->SetDetector(det); | |
675 | ||
676 | Int_t iGeoLayer = AliGeomManager::kTRD1 + ilayer; | |
677 | Int_t iGeoModule = istack + AliTRDgeometry::Nstack() * isector; | |
678 | UShort_t volid = AliGeomManager::LayerToVolUID(iGeoLayer,iGeoModule); | |
679 | ||
680 | Int_t nColMax = digitsIn->GetNcol(); | |
681 | Int_t nRowMax = digitsIn->GetNrow(); | |
682 | Int_t nTimeTotal = digitsIn->GetNtime(); | |
683 | ||
684 | // Detector wise calibration object for the gain factors | |
685 | const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet(); | |
686 | // Calibration object with pad wise values for the gain factors | |
687 | AliTRDCalROC *calGainFactorROC = calibration->GetGainFactorROC(idet); | |
688 | // Calibration value for chamber wise gain factor | |
689 | Float_t calGainFactorDetValue = calGainFactorDet->GetValue(idet); | |
690 | ||
691 | Int_t nClusters = 0; | |
692 | ||
693 | AliTRDdataArrayF *digitsOut = new AliTRDdataArrayF(nRowMax, nColMax, nTimeTotal); | |
694 | AliTRDdataArrayS padStatus(nRowMax, nColMax, nTimeTotal); | |
695 | ||
696 | ResetHelperIndexes(indexesIn); | |
697 | ||
698 | // Apply the gain and the tail cancelation via digital filter | |
699 | TailCancelation(digitsIn | |
700 | ,digitsOut | |
701 | ,indexesIn | |
702 | ,fIndexesOut | |
703 | ,nTimeTotal | |
704 | ,adcThreshold | |
705 | ,calGainFactorROC | |
706 | ,calGainFactorDetValue); | |
707 | ||
708 | Int_t row = 0; | |
709 | Int_t col = 0; | |
710 | Int_t time = 0; | |
711 | Int_t iPad = 0; | |
712 | ||
713 | UChar_t status[3]={0, 0, 0}, ipos = 0; | |
714 | fIndexesOut->ResetCounters(); | |
715 | while (fIndexesOut->NextRCTbinIndex(row, col, time)){ | |
716 | Float_t signalM = TMath::Abs(digitsOut->GetDataUnchecked(row,col,time)); | |
717 | status[1] = digitsIn->GetPadStatus(row,col,time); | |
718 | if(status[1]) SETBIT(ipos, AliTRDcluster::kMaskedCenter); | |
719 | ||
720 | // Look for the maximum | |
721 | if (signalM >= maxThresh) { | |
722 | if (col + 1 >= nColMax || col-1 < 0) continue; | |
723 | ||
724 | Float_t signalL = TMath::Abs(digitsOut->GetDataUnchecked(row,col+1,time)); | |
725 | status[0] = digitsIn->GetPadStatus(row,col+1,time); | |
726 | if(status[0]) SETBIT(ipos, AliTRDcluster::kMaskedLeft); | |
727 | ||
728 | Float_t signalR = TMath::Abs(digitsOut->GetDataUnchecked(row,col-1,time)); | |
729 | status[2] = digitsIn->GetPadStatus(row,col-1,time); | |
730 | if(status[2]) SETBIT(ipos, AliTRDcluster::kMaskedRight); | |
731 | ||
732 | // reject candidates with more than 1 problematic pad | |
733 | if(ipos == 3 || ipos > 4) continue; | |
734 | ||
735 | if(!status[1]){ // good central pad | |
736 | if(!ipos){ // all pads are OK | |
737 | if ((signalL <= signalM) && (signalR < signalM)) { | |
738 | if ((signalL >= sigThresh) || (signalR >= sigThresh)) { | |
739 | // Maximum found, mark the position by a negative signal | |
740 | digitsOut->SetDataUnchecked(row,col,time,-signalM); | |
741 | fIndexesMaxima->AddIndexTBin(row,col,time); | |
742 | padStatus.SetDataUnchecked(row, col, time, ipos); | |
743 | } | |
744 | } | |
745 | } else { // one of the neighbouring pads are bad | |
746 | if(status[0] && signalR < signalM && signalR >= sigThresh){ | |
747 | digitsOut->SetDataUnchecked(row,col,time,-signalM); | |
748 | digitsOut->SetDataUnchecked(row, col, time+1, 0.); | |
749 | fIndexesMaxima->AddIndexTBin(row,col,time); | |
750 | padStatus.SetDataUnchecked(row, col, time, ipos); | |
751 | } else if(status[2] && signalL <= signalM && signalL >= sigThresh){ | |
752 | digitsOut->SetDataUnchecked(row,col,time,-signalM); | |
753 | digitsOut->SetDataUnchecked(row, col, time-1, 0.); | |
754 | fIndexesMaxima->AddIndexTBin(row,col,time); | |
755 | padStatus.SetDataUnchecked(row, col, time, ipos); | |
756 | } | |
757 | } | |
758 | } else { // wrong maximum pad | |
759 | if ((signalL >= sigThresh) || (signalR >= sigThresh)) { | |
760 | // Maximum found, mark the position by a negative signal | |
761 | digitsOut->SetDataUnchecked(row,col,time,-maxThresh); | |
762 | fIndexesMaxima->AddIndexTBin(row,col,time); | |
763 | padStatus.SetDataUnchecked(row, col, time, ipos); | |
764 | } | |
765 | } | |
766 | } | |
767 | } | |
768 | ||
769 | // The index to the first cluster of a given ROC | |
770 | Int_t firstClusterROC = -1; | |
771 | // The number of cluster in a given ROC | |
772 | Int_t nClusterROC = 0; | |
773 | ||
774 | // Now check the maxima and calculate the cluster position | |
775 | fIndexesMaxima->ResetCounters(); | |
776 | while (fIndexesMaxima->NextRCTbinIndex(row, col, time)) { | |
777 | ||
778 | // Maximum found ? | |
779 | if (digitsOut->GetDataUnchecked(row,col,time) < 0.0) { | |
780 | for (iPad = 0; iPad < kNclus; iPad++) { | |
781 | Int_t iPadCol = col - 1 + iPad; | |
782 | clusterSignal[iPad] = TMath::Abs(digitsOut->GetDataUnchecked(row,iPadCol,time)); | |
783 | } | |
784 | ||
785 | // Count the number of pads in the cluster | |
786 | Int_t nPadCount = 0; | |
787 | Int_t ii; | |
788 | // Look to the left | |
789 | ii = 0; | |
790 | while (TMath::Abs(digitsOut->GetDataUnchecked(row,col-ii ,time)) >= sigThresh) { | |
791 | nPadCount++; | |
792 | ii++; | |
793 | if (col-ii < 0) break; | |
794 | } | |
795 | // Look to the right | |
796 | ii = 0; | |
797 | while (TMath::Abs(digitsOut->GetDataUnchecked(row,col+ii+1,time)) >= sigThresh){ | |
798 | nPadCount++; | |
799 | ii++; | |
800 | if (col+ii+1 >= nColMax) break; | |
801 | } | |
802 | nClusters++; | |
803 | ||
804 | // Look for 5 pad cluster with minimum in the middle | |
805 | Bool_t fivePadCluster = kFALSE; | |
806 | if (col < (nColMax - 3)){ | |
807 | if (digitsOut->GetDataUnchecked(row,col+2,time) < 0) { | |
808 | fivePadCluster = kTRUE; | |
809 | } | |
810 | if ((fivePadCluster) && (col < (nColMax - 5))) { | |
811 | if (digitsOut->GetDataUnchecked(row,col+4,time) >= sigThresh){ | |
812 | fivePadCluster = kFALSE; | |
813 | } | |
814 | } | |
815 | if ((fivePadCluster) && (col > 1)){ | |
816 | if (digitsOut->GetDataUnchecked(row,col-2,time) >= sigThresh){ | |
817 | fivePadCluster = kFALSE; | |
818 | } | |
819 | } | |
820 | } | |
821 | ||
822 | // 5 pad cluster | |
823 | // Modify the signal of the overlapping pad for the left part | |
824 | // of the cluster which remains from a previous unfolding | |
825 | if (iUnfold) { | |
826 | clusterSignal[0] *= ratioLeft; | |
827 | iUnfold = 0; | |
828 | } | |
829 | ||
830 | // Unfold the 5 pad cluster | |
831 | if (fivePadCluster){ | |
832 | for (iPad = 0; iPad < kNsig; iPad++) { | |
833 | padSignal[iPad] = TMath::Abs(digitsOut->GetDataUnchecked(row | |
834 | ,col-1+iPad | |
835 | ,time)); | |
836 | } | |
837 | // Unfold the two maxima and set the signal on | |
838 | // the overlapping pad to the ratio | |
839 | ratioRight = Unfold(kEpsilon,ilayer,padSignal); | |
840 | ratioLeft = 1.0 - ratioRight; | |
841 | clusterSignal[2] *= ratioRight; | |
842 | iUnfold = 1; | |
843 | } | |
844 | ||
845 | // The position of the cluster in COL direction relative to the center pad (pad units) | |
846 | Double_t clusterPosCol = 0.0; | |
847 | if (AliTRDReconstructor::RecoParam()->LUTOn()) { | |
848 | // Calculate the position of the cluster by using the | |
849 | // lookup table method | |
850 | clusterPosCol = LUTposition(ilayer,clusterSignal[0] | |
851 | ,clusterSignal[1] | |
852 | ,clusterSignal[2]); | |
853 | } else { | |
854 | // Calculate the position of the cluster by using the | |
855 | // center of gravity method | |
856 | for (Int_t i = 0; i < kNsig; i++) { | |
857 | padSignal[i] = 0.0; | |
858 | } | |
859 | padSignal[2] = TMath::Abs(digitsOut->GetDataUnchecked(row,col ,time)); // Central pad | |
860 | padSignal[1] = TMath::Abs(digitsOut->GetDataUnchecked(row,col-1,time)); // Left pad | |
861 | padSignal[3] = TMath::Abs(digitsOut->GetDataUnchecked(row,col+1,time)); // Right pad | |
862 | ||
863 | if ((col > 2) && | |
864 | (TMath::Abs(digitsOut->GetDataUnchecked(row,col-2,time)) < padSignal[1])) { | |
865 | padSignal[0] = TMath::Abs(digitsOut->GetDataUnchecked(row,col-2,time)); | |
866 | } | |
867 | if ((col < nColMax - 3) && | |
868 | (TMath::Abs(digitsOut->GetDataUnchecked(row,col+2,time)) < padSignal[3])){ | |
869 | padSignal[4] = TMath::Abs(digitsOut->GetDataUnchecked(row,col+2,time)); | |
870 | } | |
871 | clusterPosCol = GetCOG(padSignal); | |
872 | } | |
873 | ||
874 | // Store the amplitudes of the pads in the cluster for later analysis | |
875 | // and check whether one of these pads is masked in the database | |
876 | Short_t signals[7] = { 0, 0, 0, 0, 0, 0, 0 }; | |
877 | for (Int_t jPad = col-3; jPad <= col+3; jPad++) { | |
878 | if ((jPad < 0) || | |
879 | (jPad >= nColMax-1)) { | |
880 | continue; | |
881 | } | |
882 | signals[jPad-col+3] = TMath::Nint(TMath::Abs(digitsOut->GetDataUnchecked(row,jPad,time))); | |
883 | } | |
884 | ||
885 | // Transform the local cluster coordinates into calibrated | |
886 | // space point positions defined in the local tracking system. | |
887 | // Here the calibration for T0, Vdrift and ExB is applied as well. | |
888 | Double_t clusterXYZ[6]; | |
889 | clusterXYZ[0] = clusterPosCol; | |
890 | clusterXYZ[1] = clusterSignal[0]; | |
891 | clusterXYZ[2] = clusterSignal[1]; | |
892 | clusterXYZ[3] = clusterSignal[2]; | |
893 | clusterXYZ[4] = 0.0; | |
894 | clusterXYZ[5] = 0.0; | |
895 | Int_t clusterRCT[3]; | |
896 | clusterRCT[0] = row; | |
897 | clusterRCT[1] = col; | |
898 | clusterRCT[2] = 0; | |
899 | ||
900 | Bool_t out = kTRUE; | |
901 | if (fTransform->Transform(clusterXYZ, clusterRCT, ((UInt_t) time), out, 0)) { | |
902 | ||
903 | // Add the cluster to the output array | |
904 | // The track indices will be stored later | |
905 | Float_t clusterPos[3]; | |
906 | clusterPos[0] = clusterXYZ[0]; | |
907 | clusterPos[1] = clusterXYZ[1]; | |
908 | clusterPos[2] = clusterXYZ[2]; | |
909 | Float_t clusterSig[2]; | |
910 | clusterSig[0] = clusterXYZ[4]; | |
911 | clusterSig[1] = clusterXYZ[5]; | |
912 | Double_t clusterCharge = clusterXYZ[3]; | |
913 | Char_t clusterTimeBin = ((Char_t) clusterRCT[2]); | |
914 | AliTRDcluster *cluster = new AliTRDcluster(idet | |
915 | ,clusterCharge | |
916 | ,clusterPos | |
917 | ,clusterSig | |
918 | ,0x0 | |
919 | ,((Char_t) nPadCount) | |
920 | ,signals | |
921 | ,((UChar_t) col) | |
922 | ,((UChar_t) row) | |
923 | ,((UChar_t) time) | |
924 | ,clusterTimeBin | |
925 | ,clusterPosCol | |
926 | ,volid); | |
927 | cluster->SetInChamber(!out); | |
928 | UChar_t maskPosition = padStatus.GetDataUnchecked(row, col, time); | |
929 | if(maskPosition){ | |
930 | cluster->SetPadMaskedPosition(maskPosition); | |
931 | ||
932 | if(maskPosition & AliTRDcluster::kMaskedLeft) cluster->SetPadMaskedStatus(status[0]); | |
933 | else if(maskPosition & AliTRDcluster::kMaskedCenter) cluster->SetPadMaskedStatus(status[1]); | |
934 | else cluster->SetPadMaskedStatus(status[2]); | |
935 | } | |
936 | ||
937 | // Temporarily store the row, column and time bin of the center pad | |
938 | // Used to later on assign the track indices | |
939 | cluster->SetLabel( row,0); | |
940 | cluster->SetLabel( col,1); | |
941 | cluster->SetLabel(time,2); | |
942 | ||
943 | RecPoints()->Add(cluster); | |
944 | ||
945 | // Store the index of the first cluster in the current ROC | |
946 | if (firstClusterROC < 0) { | |
947 | firstClusterROC = RecPoints()->GetEntriesFast() - 1; | |
948 | } | |
949 | ||
950 | // Count the number of cluster in the current ROC | |
951 | nClusterROC++; | |
952 | ||
953 | } // if: Transform ok ? | |
954 | } // if: Maximum found ? | |
955 | } | |
956 | ||
957 | delete digitsOut; | |
958 | ||
959 | if (fAddLabels) AddLabels(idet, firstClusterROC, nClusterROC); | |
960 | ||
961 | // Write the cluster and reset the array | |
962 | WriteClusters(idet); | |
963 | ResetRecPoints(); | |
964 | ||
965 | return kTRUE; | |
966 | ||
967 | } | |
968 | ||
969 | //_____________________________________________________________________________ | |
970 | Bool_t AliTRDclusterizer::AddLabels(Int_t idet, Int_t firstClusterROC, Int_t nClusterROC) | |
971 | { | |
972 | // | |
973 | // Add the track indices to the found clusters | |
974 | // | |
975 | ||
976 | const Int_t kNclus = 3; | |
977 | const Int_t kNdict = AliTRDdigitsManager::kNDict; | |
978 | const Int_t kNtrack = kNdict * kNclus; | |
979 | ||
980 | Int_t iClusterROC = 0; | |
981 | ||
982 | Int_t row = 0; | |
983 | Int_t col = 0; | |
984 | Int_t time = 0; | |
985 | Int_t iPad = 0; | |
986 | ||
987 | // Temporary array to collect the track indices | |
988 | Int_t *idxTracks = new Int_t[kNtrack*nClusterROC]; | |
989 | ||
990 | // Loop through the dictionary arrays one-by-one | |
991 | // to keep memory consumption low | |
992 | AliTRDdataArrayI *tracksIn = 0; | |
993 | for (Int_t iDict = 0; iDict < kNdict; iDict++) { | |
994 | ||
995 | // tracksIn should be expanded beforehand! | |
996 | tracksIn = (AliTRDdataArrayI *) fDigitsManager->GetDictionary(idet,iDict); | |
997 | ||
998 | // Loop though the clusters found in this ROC | |
999 | for (iClusterROC = 0; iClusterROC < nClusterROC; iClusterROC++) { | |
1000 | ||
1001 | AliTRDcluster *cluster = (AliTRDcluster *) | |
1002 | RecPoints()->UncheckedAt(firstClusterROC+iClusterROC); | |
1003 | row = cluster->GetLabel(0); | |
1004 | col = cluster->GetLabel(1); | |
1005 | time = cluster->GetLabel(2); | |
1006 | ||
1007 | for (iPad = 0; iPad < kNclus; iPad++) { | |
1008 | Int_t iPadCol = col - 1 + iPad; | |
1009 | Int_t index = tracksIn->GetDataUnchecked(row,iPadCol,time) - 1; | |
1010 | idxTracks[3*iPad+iDict + iClusterROC*kNtrack] = index; | |
1011 | } | |
1012 | ||
1013 | } | |
1014 | ||
1015 | } | |
1016 | ||
1017 | // Copy the track indices into the cluster | |
1018 | // Loop though the clusters found in this ROC | |
1019 | for (iClusterROC = 0; iClusterROC < nClusterROC; iClusterROC++) { | |
1020 | ||
1021 | AliTRDcluster *cluster = (AliTRDcluster *) | |
1022 | RecPoints()->UncheckedAt(firstClusterROC+iClusterROC); | |
1023 | cluster->SetLabel(-9999,0); | |
1024 | cluster->SetLabel(-9999,1); | |
1025 | cluster->SetLabel(-9999,2); | |
1026 | ||
1027 | cluster->AddTrackIndex(&idxTracks[iClusterROC*kNtrack]); | |
1028 | ||
1029 | } | |
1030 | ||
1031 | delete [] idxTracks; | |
1032 | ||
1033 | return kTRUE; | |
1034 | ||
1035 | } | |
1036 | ||
1037 | //_____________________________________________________________________________ | |
1038 | Double_t AliTRDclusterizer::GetCOG(Double_t signal[5]) const | |
1039 | { | |
1040 | // | |
1041 | // Get COG position | |
1042 | // Used for clusters with more than 3 pads - where LUT not applicable | |
1043 | // | |
1044 | ||
1045 | Double_t sum = signal[0] | |
1046 | + signal[1] | |
1047 | + signal[2] | |
1048 | + signal[3] | |
1049 | + signal[4]; | |
1050 | ||
1051 | Double_t res = (0.0 * (-signal[0] + signal[4]) | |
1052 | + (-signal[1] + signal[3])) / sum; | |
1053 | ||
1054 | return res; | |
1055 | ||
1056 | } | |
1057 | ||
1058 | //_____________________________________________________________________________ | |
1059 | Double_t AliTRDclusterizer::Unfold(Double_t eps, Int_t layer, Double_t *padSignal) | |
1060 | { | |
1061 | // | |
1062 | // Method to unfold neighbouring maxima. | |
1063 | // The charge ratio on the overlapping pad is calculated | |
1064 | // until there is no more change within the range given by eps. | |
1065 | // The resulting ratio is then returned to the calling method. | |
1066 | // | |
1067 | ||
1068 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); | |
1069 | if (!calibration) { | |
1070 | AliError("No AliTRDcalibDB instance available\n"); | |
1071 | return kFALSE; | |
1072 | } | |
1073 | ||
1074 | Int_t irc = 0; | |
1075 | Int_t itStep = 0; // Count iteration steps | |
1076 | ||
1077 | Double_t ratio = 0.5; // Start value for ratio | |
1078 | Double_t prevRatio = 0.0; // Store previous ratio | |
1079 | ||
1080 | Double_t newLeftSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store left cluster signal | |
1081 | Double_t newRightSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store right cluster signal | |
1082 | Double_t newSignal[3] = { 0.0, 0.0, 0.0 }; | |
1083 | ||
1084 | // Start the iteration | |
1085 | while ((TMath::Abs(prevRatio - ratio) > eps) && (itStep < 10)) { | |
1086 | ||
1087 | itStep++; | |
1088 | prevRatio = ratio; | |
1089 | ||
1090 | // Cluster position according to charge ratio | |
1091 | Double_t maxLeft = (ratio*padSignal[2] - padSignal[0]) | |
1092 | / (padSignal[0] + padSignal[1] + ratio*padSignal[2]); | |
1093 | Double_t maxRight = (padSignal[4] - (1-ratio)*padSignal[2]) | |
1094 | / ((1.0 - ratio)*padSignal[2] + padSignal[3] + padSignal[4]); | |
1095 | ||
1096 | // Set cluster charge ratio | |
1097 | irc = calibration->PadResponse(1.0,maxLeft ,layer,newSignal); | |
1098 | Double_t ampLeft = padSignal[1] / newSignal[1]; | |
1099 | irc = calibration->PadResponse(1.0,maxRight,layer,newSignal); | |
1100 | Double_t ampRight = padSignal[3] / newSignal[1]; | |
1101 | ||
1102 | // Apply pad response to parameters | |
1103 | irc = calibration->PadResponse(ampLeft ,maxLeft ,layer,newLeftSignal ); | |
1104 | irc = calibration->PadResponse(ampRight,maxRight,layer,newRightSignal); | |
1105 | ||
1106 | // Calculate new overlapping ratio | |
1107 | ratio = TMath::Min((Double_t) 1.0 | |
1108 | ,newLeftSignal[2] / (newLeftSignal[2] + newRightSignal[0])); | |
1109 | ||
1110 | } | |
1111 | ||
1112 | return ratio; | |
1113 | ||
1114 | } | |
1115 | ||
1116 | //_____________________________________________________________________________ | |
1117 | void AliTRDclusterizer::TailCancelation(AliTRDdataArrayDigits *digitsIn | |
1118 | , AliTRDdataArrayF *digitsOut | |
1119 | , AliTRDSignalIndex *indexesIn | |
1120 | , AliTRDSignalIndex *indexesOut | |
1121 | , Int_t nTimeTotal | |
1122 | , Float_t adcThreshold | |
1123 | , AliTRDCalROC *calGainFactorROC | |
1124 | , Float_t calGainFactorDetValue) | |
1125 | { | |
1126 | // | |
1127 | // Applies the tail cancelation and gain factors: | |
1128 | // Transform digitsIn to digitsOut | |
1129 | // | |
1130 | ||
1131 | Int_t iRow = 0; | |
1132 | Int_t iCol = 0; | |
1133 | Int_t iTime = 0; | |
1134 | ||
1135 | Double_t *inADC = new Double_t[nTimeTotal]; // ADC data before tail cancellation | |
1136 | Double_t *outADC = new Double_t[nTimeTotal]; // ADC data after tail cancellation | |
1137 | indexesIn->ResetCounters(); | |
1138 | while (indexesIn->NextRCIndex(iRow, iCol)) | |
1139 | { | |
1140 | Float_t calGainFactorROCValue = calGainFactorROC->GetValue(iCol,iRow); | |
1141 | Double_t gain = calGainFactorDetValue | |
1142 | * calGainFactorROCValue; | |
1143 | ||
1144 | Bool_t corrupted = kFALSE; | |
1145 | for (iTime = 0; iTime < nTimeTotal; iTime++) | |
1146 | { | |
1147 | // Apply gain gain factor | |
1148 | inADC[iTime] = digitsIn->GetDataUnchecked(iRow,iCol,iTime); | |
1149 | if(digitsIn->GetPadStatus(iRow, iCol, iTime)) corrupted = kTRUE; | |
1150 | inADC[iTime] /= gain; | |
1151 | outADC[iTime] = inADC[iTime]; | |
1152 | } | |
1153 | if(!corrupted) | |
1154 | { | |
1155 | // Apply the tail cancelation via the digital filter | |
1156 | // (only for non-coorupted pads) | |
1157 | if (AliTRDReconstructor::RecoParam()->TCOn()) | |
1158 | { | |
1159 | DeConvExp(inADC,outADC,nTimeTotal,AliTRDReconstructor::RecoParam()->GetTCnexp()); | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | indexesIn->ResetTbinCounter(); | |
1164 | while (indexesIn->NextTbinIndex(iTime)) | |
1165 | { | |
1166 | // Store the amplitude of the digit if above threshold | |
1167 | if (outADC[iTime] > adcThreshold) | |
1168 | { | |
1169 | digitsOut->SetDataUnchecked(iRow,iCol,iTime,outADC[iTime]); | |
1170 | indexesOut->AddIndexTBin(iRow,iCol,iTime); | |
1171 | } | |
1172 | } // while itime | |
1173 | ||
1174 | } // while irow icol | |
1175 | ||
1176 | delete [] inADC; | |
1177 | delete [] outADC; | |
1178 | ||
1179 | return; | |
1180 | ||
1181 | } | |
1182 | ||
1183 | //_____________________________________________________________________________ | |
1184 | void AliTRDclusterizer::DeConvExp(Double_t *source, Double_t *target | |
1185 | , Int_t n, Int_t nexp) | |
1186 | { | |
1187 | // | |
1188 | // Tail cancellation by deconvolution for PASA v4 TRF | |
1189 | // | |
1190 | ||
1191 | Double_t rates[2]; | |
1192 | Double_t coefficients[2]; | |
1193 | ||
1194 | // Initialization (coefficient = alpha, rates = lambda) | |
1195 | Double_t r1 = 1.0; | |
1196 | Double_t r2 = 1.0; | |
1197 | Double_t c1 = 0.5; | |
1198 | Double_t c2 = 0.5; | |
1199 | ||
1200 | if (nexp == 1) { // 1 Exponentials | |
1201 | r1 = 1.156; | |
1202 | r2 = 0.130; | |
1203 | c1 = 0.066; | |
1204 | c2 = 0.000; | |
1205 | } | |
1206 | if (nexp == 2) { // 2 Exponentials | |
1207 | r1 = 1.156; | |
1208 | r2 = 0.130; | |
1209 | c1 = 0.114; | |
1210 | c2 = 0.624; | |
1211 | } | |
1212 | ||
1213 | coefficients[0] = c1; | |
1214 | coefficients[1] = c2; | |
1215 | ||
1216 | Double_t dt = 0.1; | |
1217 | ||
1218 | rates[0] = TMath::Exp(-dt/(r1)); | |
1219 | rates[1] = TMath::Exp(-dt/(r2)); | |
1220 | ||
1221 | Int_t i = 0; | |
1222 | Int_t k = 0; | |
1223 | ||
1224 | Double_t reminder[2]; | |
1225 | Double_t correction = 0.0; | |
1226 | Double_t result = 0.0; | |
1227 | ||
1228 | // Attention: computation order is important | |
1229 | for (k = 0; k < nexp; k++) { | |
1230 | reminder[k] = 0.0; | |
1231 | } | |
1232 | ||
1233 | for (i = 0; i < n; i++) { | |
1234 | ||
1235 | result = (source[i] - correction); // No rescaling | |
1236 | target[i] = result; | |
1237 | ||
1238 | for (k = 0; k < nexp; k++) { | |
1239 | reminder[k] = rates[k] * (reminder[k] + coefficients[k] * result); | |
1240 | } | |
1241 | ||
1242 | correction = 0.0; | |
1243 | for (k = 0; k < nexp; k++) { | |
1244 | correction += reminder[k]; | |
1245 | } | |
1246 | ||
1247 | } | |
1248 | ||
1249 | } | |
1250 | ||
1251 | //_____________________________________________________________________________ | |
1252 | void AliTRDclusterizer::ResetRecPoints() | |
1253 | { | |
1254 | // | |
1255 | // Resets the list of rec points | |
1256 | // | |
1257 | ||
1258 | if (fRecPoints) { | |
1259 | fRecPoints->Delete(); | |
1260 | } | |
1261 | ||
1262 | } | |
1263 | ||
1264 | //_____________________________________________________________________________ | |
1265 | TObjArray *AliTRDclusterizer::RecPoints() | |
1266 | { | |
1267 | // | |
1268 | // Returns the list of rec points | |
1269 | // | |
1270 | ||
1271 | if (!fRecPoints) { | |
1272 | fRecPoints = new TObjArray(400); | |
1273 | } | |
1274 | ||
1275 | return fRecPoints; | |
1276 | ||
1277 | } | |
1278 | ||
1279 | //_____________________________________________________________________________ | |
1280 | void AliTRDclusterizer::FillLUT() | |
1281 | { | |
1282 | // | |
1283 | // Create the LUT | |
1284 | // | |
1285 | ||
1286 | const Int_t kNlut = 128; | |
1287 | ||
1288 | fLUTbin = AliTRDgeometry::kNlayer * kNlut; | |
1289 | ||
1290 | // The lookup table from Bogdan | |
1291 | Float_t lut[AliTRDgeometry::kNlayer][kNlut] = { | |
1292 | { | |
1293 | 0.0070, 0.0150, 0.0224, 0.0298, 0.0374, 0.0454, 0.0533, 0.0611, | |
1294 | 0.0684, 0.0755, 0.0827, 0.0900, 0.0975, 0.1049, 0.1120, 0.1187, | |
1295 | 0.1253, 0.1318, 0.1385, 0.1453, 0.1519, 0.1584, 0.1646, 0.1704, | |
1296 | 0.1762, 0.1821, 0.1879, 0.1938, 0.1996, 0.2053, 0.2108, 0.2160, | |
1297 | 0.2210, 0.2260, 0.2310, 0.2361, 0.2411, 0.2461, 0.2509, 0.2557, | |
1298 | 0.2602, 0.2646, 0.2689, 0.2732, 0.2774, 0.2816, 0.2859, 0.2901, | |
1299 | 0.2942, 0.2983, 0.3022, 0.3061, 0.3099, 0.3136, 0.3172, 0.3207, | |
1300 | 0.3242, 0.3278, 0.3312, 0.3347, 0.3382, 0.3416, 0.3450, 0.3483, | |
1301 | 0.3515, 0.3547, 0.3579, 0.3609, 0.3639, 0.3669, 0.3698, 0.3727, | |
1302 | 0.3756, 0.3785, 0.3813, 0.3842, 0.3870, 0.3898, 0.3926, 0.3952, | |
1303 | 0.3979, 0.4005, 0.4032, 0.4057, 0.4082, 0.4108, 0.4132, 0.4157, | |
1304 | 0.4181, 0.4205, 0.4228, 0.4252, 0.4275, 0.4299, 0.4322, 0.4345, | |
1305 | 0.4367, 0.4390, 0.4412, 0.4434, 0.4456, 0.4478, 0.4499, 0.4520, | |
1306 | 0.4541, 0.4562, 0.4583, 0.4603, 0.4623, 0.4643, 0.4663, 0.4683, | |
1307 | 0.4702, 0.4722, 0.4741, 0.4758, 0.4774, 0.4790, 0.4805, 0.4824, | |
1308 | 0.4844, 0.4863, 0.4883, 0.4902, 0.4921, 0.4940, 0.4959, 0.4978 | |
1309 | }, | |
1310 | { | |
1311 | 0.0072, 0.0156, 0.0235, 0.0313, 0.0394, 0.0478, 0.0561, 0.0642, | |
1312 | 0.0718, 0.0792, 0.0868, 0.0947, 0.1025, 0.1101, 0.1172, 0.1241, | |
1313 | 0.1309, 0.1378, 0.1449, 0.1518, 0.1586, 0.1650, 0.1710, 0.1770, | |
1314 | 0.1830, 0.1891, 0.1952, 0.2011, 0.2070, 0.2125, 0.2177, 0.2229, | |
1315 | 0.2280, 0.2332, 0.2383, 0.2435, 0.2484, 0.2533, 0.2581, 0.2627, | |
1316 | 0.2670, 0.2714, 0.2757, 0.2799, 0.2842, 0.2884, 0.2927, 0.2968, | |
1317 | 0.3008, 0.3048, 0.3086, 0.3123, 0.3159, 0.3195, 0.3231, 0.3266, | |
1318 | 0.3301, 0.3335, 0.3370, 0.3404, 0.3438, 0.3471, 0.3504, 0.3536, | |
1319 | 0.3567, 0.3598, 0.3628, 0.3657, 0.3686, 0.3715, 0.3744, 0.3772, | |
1320 | 0.3800, 0.3828, 0.3856, 0.3884, 0.3911, 0.3938, 0.3965, 0.3991, | |
1321 | 0.4016, 0.4042, 0.4067, 0.4092, 0.4116, 0.4140, 0.4164, 0.4187, | |
1322 | 0.4211, 0.4234, 0.4257, 0.4280, 0.4302, 0.4325, 0.4347, 0.4369, | |
1323 | 0.4391, 0.4413, 0.4434, 0.4456, 0.4477, 0.4497, 0.4518, 0.4538, | |
1324 | 0.4558, 0.4578, 0.4598, 0.4618, 0.4637, 0.4656, 0.4675, 0.4694, | |
1325 | 0.4713, 0.4732, 0.4750, 0.4766, 0.4781, 0.4797, 0.4813, 0.4832, | |
1326 | 0.4851, 0.4870, 0.4888, 0.4906, 0.4925, 0.4942, 0.4960, 0.4978 | |
1327 | }, | |
1328 | { | |
1329 | 0.0075, 0.0163, 0.0246, 0.0328, 0.0415, 0.0504, 0.0592, 0.0674, | |
1330 | 0.0753, 0.0832, 0.0914, 0.0996, 0.1077, 0.1154, 0.1225, 0.1296, | |
1331 | 0.1369, 0.1442, 0.1515, 0.1585, 0.1652, 0.1714, 0.1776, 0.1839, | |
1332 | 0.1902, 0.1965, 0.2025, 0.2085, 0.2141, 0.2194, 0.2247, 0.2299, | |
1333 | 0.2352, 0.2405, 0.2457, 0.2507, 0.2557, 0.2604, 0.2649, 0.2693, | |
1334 | 0.2737, 0.2780, 0.2823, 0.2867, 0.2909, 0.2951, 0.2992, 0.3033, | |
1335 | 0.3072, 0.3110, 0.3146, 0.3182, 0.3218, 0.3253, 0.3288, 0.3323, | |
1336 | 0.3357, 0.3392, 0.3426, 0.3459, 0.3492, 0.3524, 0.3555, 0.3586, | |
1337 | 0.3616, 0.3645, 0.3674, 0.3703, 0.3731, 0.3759, 0.3787, 0.3815, | |
1338 | 0.3843, 0.3870, 0.3897, 0.3925, 0.3950, 0.3976, 0.4002, 0.4027, | |
1339 | 0.4052, 0.4076, 0.4101, 0.4124, 0.4148, 0.4171, 0.4194, 0.4217, | |
1340 | 0.4239, 0.4262, 0.4284, 0.4306, 0.4328, 0.4350, 0.4371, 0.4393, | |
1341 | 0.4414, 0.4435, 0.4455, 0.4476, 0.4496, 0.4516, 0.4536, 0.4555, | |
1342 | 0.4575, 0.4594, 0.4613, 0.4632, 0.4650, 0.4669, 0.4687, 0.4705, | |
1343 | 0.4723, 0.4741, 0.4758, 0.4773, 0.4789, 0.4804, 0.4821, 0.4839, | |
1344 | 0.4857, 0.4875, 0.4893, 0.4910, 0.4928, 0.4945, 0.4961, 0.4978 | |
1345 | }, | |
1346 | { | |
1347 | 0.0078, 0.0171, 0.0258, 0.0345, 0.0438, 0.0532, 0.0624, 0.0708, | |
1348 | 0.0791, 0.0875, 0.0962, 0.1048, 0.1130, 0.1206, 0.1281, 0.1356, | |
1349 | 0.1432, 0.1508, 0.1582, 0.1651, 0.1716, 0.1780, 0.1845, 0.1910, | |
1350 | 0.1975, 0.2038, 0.2099, 0.2155, 0.2210, 0.2263, 0.2317, 0.2371, | |
1351 | 0.2425, 0.2477, 0.2528, 0.2578, 0.2626, 0.2671, 0.2715, 0.2759, | |
1352 | 0.2803, 0.2846, 0.2890, 0.2933, 0.2975, 0.3016, 0.3056, 0.3095, | |
1353 | 0.3132, 0.3168, 0.3204, 0.3239, 0.3274, 0.3309, 0.3344, 0.3378, | |
1354 | 0.3412, 0.3446, 0.3479, 0.3511, 0.3543, 0.3574, 0.3603, 0.3633, | |
1355 | 0.3662, 0.3690, 0.3718, 0.3747, 0.3774, 0.3802, 0.3829, 0.3857, | |
1356 | 0.3883, 0.3910, 0.3936, 0.3962, 0.3987, 0.4012, 0.4037, 0.4061, | |
1357 | 0.4085, 0.4109, 0.4132, 0.4155, 0.4177, 0.4200, 0.4222, 0.4244, | |
1358 | 0.4266, 0.4288, 0.4309, 0.4331, 0.4352, 0.4373, 0.4394, 0.4414, | |
1359 | 0.4435, 0.4455, 0.4475, 0.4494, 0.4514, 0.4533, 0.4552, 0.4571, | |
1360 | 0.4590, 0.4608, 0.4626, 0.4645, 0.4662, 0.4680, 0.4698, 0.4715, | |
1361 | 0.4733, 0.4750, 0.4766, 0.4781, 0.4796, 0.4812, 0.4829, 0.4846, | |
1362 | 0.4863, 0.4880, 0.4897, 0.4914, 0.4930, 0.4946, 0.4963, 0.4979 | |
1363 | }, | |
1364 | { | |
1365 | 0.0081, 0.0178, 0.0270, 0.0364, 0.0463, 0.0562, 0.0656, 0.0744, | |
1366 | 0.0831, 0.0921, 0.1013, 0.1102, 0.1183, 0.1261, 0.1339, 0.1419, | |
1367 | 0.1499, 0.1576, 0.1648, 0.1715, 0.1782, 0.1849, 0.1917, 0.1984, | |
1368 | 0.2048, 0.2110, 0.2167, 0.2223, 0.2278, 0.2333, 0.2389, 0.2444, | |
1369 | 0.2497, 0.2548, 0.2598, 0.2645, 0.2691, 0.2735, 0.2780, 0.2824, | |
1370 | 0.2868, 0.2912, 0.2955, 0.2997, 0.3038, 0.3078, 0.3116, 0.3152, | |
1371 | 0.3188, 0.3224, 0.3259, 0.3294, 0.3329, 0.3364, 0.3398, 0.3432, | |
1372 | 0.3465, 0.3497, 0.3529, 0.3561, 0.3591, 0.3620, 0.3649, 0.3677, | |
1373 | 0.3705, 0.3733, 0.3761, 0.3788, 0.3816, 0.3843, 0.3869, 0.3896, | |
1374 | 0.3922, 0.3948, 0.3973, 0.3998, 0.4022, 0.4047, 0.4070, 0.4094, | |
1375 | 0.4117, 0.4139, 0.4162, 0.4184, 0.4206, 0.4227, 0.4249, 0.4270, | |
1376 | 0.4291, 0.4313, 0.4334, 0.4354, 0.4375, 0.4395, 0.4415, 0.4435, | |
1377 | 0.4455, 0.4474, 0.4493, 0.4512, 0.4531, 0.4550, 0.4568, 0.4586, | |
1378 | 0.4604, 0.4622, 0.4639, 0.4657, 0.4674, 0.4691, 0.4708, 0.4725, | |
1379 | 0.4742, 0.4758, 0.4773, 0.4788, 0.4803, 0.4819, 0.4836, 0.4852, | |
1380 | 0.4869, 0.4885, 0.4901, 0.4917, 0.4933, 0.4948, 0.4964, 0.4979 | |
1381 | }, | |
1382 | { | |
1383 | 0.0085, 0.0189, 0.0288, 0.0389, 0.0497, 0.0603, 0.0699, 0.0792, | |
1384 | 0.0887, 0.0985, 0.1082, 0.1170, 0.1253, 0.1336, 0.1421, 0.1505, | |
1385 | 0.1587, 0.1662, 0.1733, 0.1803, 0.1874, 0.1945, 0.2014, 0.2081, | |
1386 | 0.2143, 0.2201, 0.2259, 0.2316, 0.2374, 0.2431, 0.2487, 0.2541, | |
1387 | 0.2593, 0.2642, 0.2689, 0.2735, 0.2781, 0.2826, 0.2872, 0.2917, | |
1388 | 0.2961, 0.3003, 0.3045, 0.3086, 0.3125, 0.3162, 0.3198, 0.3235, | |
1389 | 0.3270, 0.3306, 0.3342, 0.3377, 0.3411, 0.3446, 0.3479, 0.3511, | |
1390 | 0.3543, 0.3575, 0.3605, 0.3634, 0.3663, 0.3691, 0.3720, 0.3748, | |
1391 | 0.3775, 0.3803, 0.3830, 0.3857, 0.3884, 0.3911, 0.3937, 0.3962, | |
1392 | 0.3987, 0.4012, 0.4036, 0.4060, 0.4084, 0.4107, 0.4129, 0.4152, | |
1393 | 0.4174, 0.4196, 0.4218, 0.4239, 0.4261, 0.4282, 0.4303, 0.4324, | |
1394 | 0.4344, 0.4365, 0.4385, 0.4405, 0.4425, 0.4445, 0.4464, 0.4483, | |
1395 | 0.4502, 0.4521, 0.4539, 0.4558, 0.4576, 0.4593, 0.4611, 0.4629, | |
1396 | 0.4646, 0.4663, 0.4680, 0.4697, 0.4714, 0.4730, 0.4747, 0.4759, | |
1397 | 0.4769, 0.4780, 0.4790, 0.4800, 0.4811, 0.4827, 0.4843, 0.4859, | |
1398 | 0.4874, 0.4889, 0.4905, 0.4920, 0.4935, 0.4950, 0.4965, 0.4979 | |
1399 | } | |
1400 | }; | |
1401 | ||
1402 | if (fLUT) { | |
1403 | delete [] fLUT; | |
1404 | } | |
1405 | fLUT = new Double_t[fLUTbin]; | |
1406 | ||
1407 | for (Int_t ilayer = 0; ilayer < AliTRDgeometry::kNlayer; ilayer++) { | |
1408 | for (Int_t ilut = 0; ilut < kNlut; ilut++ ) { | |
1409 | fLUT[ilayer*kNlut+ilut] = lut[ilayer][ilut]; | |
1410 | } | |
1411 | } | |
1412 | ||
1413 | } | |
1414 | ||
1415 | //_____________________________________________________________________________ | |
1416 | Double_t AliTRDclusterizer::LUTposition(Int_t ilayer, Double_t ampL | |
1417 | , Double_t ampC, Double_t ampR) const | |
1418 | { | |
1419 | // | |
1420 | // Calculates the cluster position using the lookup table. | |
1421 | // Method provided by Bogdan Vulpescu. | |
1422 | // | |
1423 | ||
1424 | const Int_t kNlut = 128; | |
1425 | ||
1426 | Double_t pos; | |
1427 | Double_t x = 0.0; | |
1428 | Double_t xmin; | |
1429 | Double_t xmax; | |
1430 | Double_t xwid; | |
1431 | ||
1432 | Int_t side = 0; | |
1433 | Int_t ix; | |
1434 | ||
1435 | Double_t xMin[AliTRDgeometry::kNlayer] = { 0.006492, 0.006377, 0.006258 | |
1436 | , 0.006144, 0.006030, 0.005980 }; | |
1437 | Double_t xMax[AliTRDgeometry::kNlayer] = { 0.960351, 0.965870, 0.970445 | |
1438 | , 0.974352, 0.977667, 0.996101 }; | |
1439 | ||
1440 | if (ampL > ampR) { | |
1441 | x = (ampL - ampR) / ampC; | |
1442 | side = -1; | |
1443 | } | |
1444 | else if (ampL < ampR) { | |
1445 | x = (ampR - ampL) / ampC; | |
1446 | side = +1; | |
1447 | } | |
1448 | ||
1449 | if (ampL != ampR) { | |
1450 | ||
1451 | xmin = xMin[ilayer] + 0.000005; | |
1452 | xmax = xMax[ilayer] - 0.000005; | |
1453 | xwid = (xmax - xmin) / 127.0; | |
1454 | ||
1455 | if (x < xmin) { | |
1456 | pos = 0.0000; | |
1457 | } | |
1458 | else if (x > xmax) { | |
1459 | pos = side * 0.5000; | |
1460 | } | |
1461 | else { | |
1462 | ix = (Int_t) ((x - xmin) / xwid); | |
1463 | pos = side * fLUT[ilayer*kNlut+ix]; | |
1464 | } | |
1465 | ||
1466 | } | |
1467 | else { | |
1468 | ||
1469 | pos = 0.0; | |
1470 | ||
1471 | } | |
1472 | ||
1473 | return pos; | |
1474 | ||
1475 | } |