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ca21baaa | 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 | ||
30 | #include "AliRunLoader.h" | |
31 | #include "AliLoader.h" | |
32 | #include "AliRawReader.h" | |
33 | #include "AliLog.h" | |
34 | #include "AliAlignObj.h" | |
35 | ||
36 | #include "AliTRDclusterizerV2.h" | |
37 | #include "AliTRDgeometry.h" | |
38 | #include "AliTRDdataArrayF.h" | |
39 | #include "AliTRDdataArrayI.h" | |
40 | #include "AliTRDdigitsManager.h" | |
41 | #include "AliTRDpadPlane.h" | |
42 | #include "AliTRDrawData.h" | |
43 | #include "AliTRDcalibDB.h" | |
44 | #include "AliTRDSimParam.h" | |
45 | #include "AliTRDRecParam.h" | |
46 | #include "AliTRDcluster.h" | |
47 | ||
48 | #include "Cal/AliTRDCalROC.h" | |
49 | #include "Cal/AliTRDCalDet.h" | |
50 | ||
51 | #include "AliTRDSignalIndex.h" | |
52 | #include "AliTRDRawStream.h" | |
ecf39416 | 53 | #include "AliTRDRawStreamV2.h" |
54 | ||
55 | #include "AliTRDfeeParam.h" | |
ca21baaa | 56 | |
57 | ClassImp(AliTRDclusterizerV2) | |
58 | ||
59 | //_____________________________________________________________________________ | |
60 | AliTRDclusterizerV2::AliTRDclusterizerV2() | |
61 | :AliTRDclusterizer() | |
62 | ,fDigitsManager(NULL) | |
63 | ,fGeometry(NULL) | |
64 | ,fAddLabels(kTRUE) | |
f582272a | 65 | ,fRawVersion(2) |
001be664 | 66 | ,fIndexesOut(NULL) |
67 | ,fIndexesMaxima(NULL) | |
ca21baaa | 68 | { |
69 | // | |
70 | // AliTRDclusterizerV2 default constructor | |
71 | // | |
72 | ||
ecf39416 | 73 | fRawVersion = AliTRDfeeParam::Instance()->GetRAWversion(); |
ca21baaa | 74 | } |
75 | ||
76 | //_____________________________________________________________________________ | |
77 | AliTRDclusterizerV2::AliTRDclusterizerV2(const Text_t *name, const Text_t *title) | |
78 | :AliTRDclusterizer(name,title) | |
79 | ,fDigitsManager(new AliTRDdigitsManager()) | |
80 | ,fGeometry(NULL) | |
81 | ,fAddLabels(kTRUE) | |
f582272a | 82 | ,fRawVersion(2) |
001be664 | 83 | ,fIndexesOut(NULL) |
84 | ,fIndexesMaxima(NULL) | |
ca21baaa | 85 | { |
86 | // | |
87 | // AliTRDclusterizerV2 constructor | |
88 | // | |
89 | ||
90 | fDigitsManager->CreateArrays(); | |
91 | fGeometry = new AliTRDgeometry; | |
ecf39416 | 92 | |
93 | fRawVersion = AliTRDfeeParam::Instance()->GetRAWversion(); | |
ca21baaa | 94 | } |
95 | ||
96 | //_____________________________________________________________________________ | |
97 | AliTRDclusterizerV2::AliTRDclusterizerV2(const AliTRDclusterizerV2 &c) | |
98 | :AliTRDclusterizer(c) | |
99 | ,fDigitsManager(NULL) | |
100 | ,fGeometry(NULL) | |
101 | ,fAddLabels(kTRUE) | |
f582272a | 102 | ,fRawVersion(2) |
001be664 | 103 | ,fIndexesOut(NULL) |
104 | ,fIndexesMaxima(NULL) | |
ca21baaa | 105 | { |
106 | // | |
107 | // AliTRDclusterizerV2 copy constructor | |
108 | // | |
109 | ||
110 | } | |
111 | ||
112 | //_____________________________________________________________________________ | |
113 | AliTRDclusterizerV2::~AliTRDclusterizerV2() | |
114 | { | |
115 | // | |
116 | // AliTRDclusterizerV2 destructor | |
117 | // | |
118 | ||
119 | if (fDigitsManager) { | |
120 | delete fDigitsManager; | |
121 | fDigitsManager = NULL; | |
122 | } | |
123 | ||
124 | if (fGeometry) | |
125 | { | |
126 | delete fGeometry; | |
127 | fGeometry = NULL; | |
128 | } | |
001be664 | 129 | |
130 | if (fIndexesOut) | |
131 | { | |
132 | delete fIndexesOut; | |
133 | fIndexesOut = NULL; | |
134 | } | |
135 | ||
136 | if (fIndexesMaxima) | |
137 | { | |
138 | delete fIndexesMaxima; | |
139 | fIndexesMaxima = NULL; | |
140 | } | |
ca21baaa | 141 | } |
142 | ||
143 | //_____________________________________________________________________________ | |
144 | AliTRDclusterizerV2 &AliTRDclusterizerV2::operator=(const AliTRDclusterizerV2 &c) | |
145 | { | |
146 | // | |
147 | // Assignment operator | |
148 | // | |
149 | ||
150 | if (this != &c) ((AliTRDclusterizerV2 &) c).Copy(*this); | |
151 | return *this; | |
152 | ||
153 | } | |
154 | ||
155 | //_____________________________________________________________________________ | |
156 | void AliTRDclusterizerV2::Copy(TObject &c) const | |
157 | { | |
158 | // | |
159 | // Copy function | |
160 | // | |
161 | ||
001be664 | 162 | ((AliTRDclusterizerV2 &) c).fDigitsManager = NULL; |
163 | ((AliTRDclusterizerV2 &) c).fGeometry = NULL; | |
164 | ((AliTRDclusterizerV2 &) c).fAddLabels = fAddLabels; | |
165 | ((AliTRDclusterizerV2 &) c).fRawVersion = fRawVersion; | |
166 | ((AliTRDclusterizerV2 &) c).fIndexesOut = NULL; | |
167 | ((AliTRDclusterizerV2 &) c).fIndexesMaxima = NULL; | |
168 | ||
ca21baaa | 169 | AliTRDclusterizer::Copy(c); |
170 | ||
171 | } | |
172 | ||
001be664 | 173 | //_____________________________________________________________________________ |
174 | void AliTRDclusterizerV2::ResetHelperIndexes(AliTRDSignalIndex *indexesIn) | |
175 | { | |
176 | // | |
177 | // Reset the helper indexes | |
178 | // | |
179 | if (fIndexesOut) | |
180 | { | |
181 | // carefull here - we assume that only row number may change - most probable | |
182 | if (indexesIn->GetNrow() <= fIndexesOut->GetNrow()) | |
183 | fIndexesOut->ResetContent(); | |
184 | else | |
185 | fIndexesOut->ResetContentConditional(indexesIn->GetNrow(), indexesIn->GetNcol(), indexesIn->GetNtime()); | |
186 | } | |
187 | else | |
188 | { | |
189 | fIndexesOut = new AliTRDSignalIndex(indexesIn->GetNrow(), indexesIn->GetNcol(), indexesIn->GetNtime()); | |
190 | } | |
191 | ||
192 | if (fIndexesMaxima) | |
193 | { | |
194 | // carefull here - we assume that only row number may change - most probable | |
195 | if (indexesIn->GetNrow() <= fIndexesMaxima->GetNrow()) | |
196 | fIndexesMaxima->ResetContent(); | |
197 | else | |
198 | fIndexesMaxima->ResetContentConditional(indexesIn->GetNrow(), indexesIn->GetNcol(), indexesIn->GetNtime()); | |
199 | } | |
200 | else | |
201 | { | |
202 | fIndexesMaxima = new AliTRDSignalIndex(indexesIn->GetNrow(), indexesIn->GetNcol(), indexesIn->GetNtime()); | |
203 | } | |
204 | } | |
205 | ||
ca21baaa | 206 | //_____________________________________________________________________________ |
207 | Bool_t AliTRDclusterizerV2::ReadDigits() | |
208 | { | |
209 | // | |
210 | // Reads the digits arrays from the input aliroot file | |
211 | // | |
212 | ||
213 | if (!fRunLoader) { | |
214 | AliError("No run loader available"); | |
215 | return kFALSE; | |
216 | } | |
217 | ||
218 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
219 | if (!loader->TreeD()) { | |
220 | loader->LoadDigits(); | |
221 | } | |
222 | ||
223 | // Read in the digit arrays | |
224 | return (fDigitsManager->ReadDigits(loader->TreeD())); | |
225 | ||
226 | } | |
227 | ||
228 | //_____________________________________________________________________________ | |
229 | Bool_t AliTRDclusterizerV2::ReadDigits(TTree *digitsTree) | |
230 | { | |
231 | // | |
232 | // Reads the digits arrays from the input tree | |
233 | // | |
234 | ||
235 | // Read in the digit arrays | |
236 | return (fDigitsManager->ReadDigits(digitsTree)); | |
237 | ||
238 | } | |
239 | ||
240 | //_____________________________________________________________________________ | |
241 | Bool_t AliTRDclusterizerV2::ReadDigits(AliRawReader *rawReader) | |
242 | { | |
243 | // | |
244 | // Reads the digits arrays from the ddl file | |
245 | // | |
246 | ||
247 | AliTRDrawData raw; | |
248 | fDigitsManager = raw.Raw2Digits(rawReader); | |
249 | ||
250 | return kTRUE; | |
251 | ||
252 | } | |
253 | ||
254 | //_____________________________________________________________________________ | |
255 | Bool_t AliTRDclusterizerV2::MakeClusters() | |
256 | { | |
257 | // | |
258 | // Creates clusters from digits | |
259 | // | |
260 | ||
001be664 | 261 | //propagate info from the digits manager |
262 | if (fAddLabels == kTRUE) | |
263 | fAddLabels = fDigitsManager->UsesDictionaries(); | |
264 | ||
ca21baaa | 265 | Bool_t fReturn = kTRUE; |
266 | for (Int_t i = 0; i < AliTRDgeometry::kNdet; i++) | |
267 | { | |
268 | AliTRDdataArrayI *digitsIn = fDigitsManager->GetDigits(i); | |
269 | // This is to take care of switched off super modules | |
270 | if (digitsIn->GetNtime() == 0) { | |
271 | continue; | |
272 | } | |
273 | //AliInfo(Form("digitsIn->Expand() 0x%x", digitsIn)); | |
274 | digitsIn->Expand(); | |
275 | AliTRDSignalIndex* indexes = fDigitsManager->GetIndexes(i); | |
276 | if (indexes->IsAllocated() == kFALSE) | |
277 | { | |
278 | fDigitsManager->BuildIndexes(i); | |
279 | } | |
280 | ||
ecf39416 | 281 | Bool_t fR = kFALSE; |
ca21baaa | 282 | if (indexes->HasEntry()) |
283 | { | |
284 | if (fAddLabels) | |
285 | { | |
286 | for (Int_t iDict = 0; iDict < AliTRDdigitsManager::kNDict; iDict++) | |
287 | { | |
288 | AliTRDdataArrayI *tracksIn = 0; | |
289 | tracksIn = fDigitsManager->GetDictionary(i,iDict); | |
290 | tracksIn->Expand(); | |
291 | } | |
292 | } | |
ecf39416 | 293 | fR = MakeClusters(i); |
ca21baaa | 294 | fReturn = fR && fReturn; |
295 | } | |
ecf39416 | 296 | |
297 | if (fR == kFALSE) | |
298 | { | |
299 | WriteClusters(i); | |
300 | ResetRecPoints(); | |
301 | } | |
ca21baaa | 302 | //digitsIn->Compress(1,0); |
303 | // no compress just remove | |
304 | fDigitsManager->RemoveDigits(i); | |
305 | fDigitsManager->RemoveDictionaries(i); | |
306 | fDigitsManager->ClearIndexes(i); | |
307 | } | |
001be664 | 308 | |
ca21baaa | 309 | return fReturn; |
310 | } | |
311 | ||
312 | ||
313 | //_____________________________________________________________________________ | |
314 | Bool_t AliTRDclusterizerV2::Raw2Clusters(AliRawReader *rawReader) | |
315 | { | |
316 | // | |
317 | // Creates clusters from raw data | |
318 | // | |
319 | ||
320 | //AliDebug(2, "Read all"); | |
321 | ||
322 | AliTRDdataArrayI *digits = 0; | |
323 | AliTRDdataArrayI *track0 = 0; | |
324 | AliTRDdataArrayI *track1 = 0; | |
325 | AliTRDdataArrayI *track2 = 0; | |
326 | ||
327 | AliTRDSignalIndex *indexes = 0; | |
328 | // Create the digits manager | |
329 | if (!fDigitsManager) | |
330 | { | |
331 | fDigitsManager = new AliTRDdigitsManager(); | |
332 | fDigitsManager->CreateArrays(); | |
333 | } | |
ca21baaa | 334 | |
ecf39416 | 335 | //AliTRDRawStream input(rawReader); |
336 | AliTRDRawStreamV2 input(rawReader); | |
f582272a | 337 | input.SetRawVersion( fRawVersion ); |
ca21baaa | 338 | input.Init(); |
339 | ||
ecf39416 | 340 | AliInfo(Form("Stream version: %s", input.IsA()->GetName())); |
341 | ||
ca21baaa | 342 | // Loop through the digits |
343 | Int_t lastdet = -1; | |
344 | Int_t det = 0; | |
345 | Int_t it = 0; | |
346 | while (input.Next()) | |
347 | { | |
348 | ||
349 | det = input.GetDet(); | |
350 | ||
351 | if (det != lastdet) | |
352 | { | |
353 | if (lastdet != -1) | |
354 | { | |
355 | digits = fDigitsManager->GetDigits(lastdet); | |
ecf39416 | 356 | Bool_t iclusterBranch = kFALSE; |
ca21baaa | 357 | if (indexes->HasEntry()) |
ecf39416 | 358 | iclusterBranch = MakeClusters(lastdet); |
359 | if (iclusterBranch == kFALSE) | |
360 | { | |
361 | WriteClusters(lastdet); | |
362 | ResetRecPoints(); | |
363 | } | |
ca21baaa | 364 | } |
365 | ||
366 | if (digits) | |
367 | { | |
368 | fDigitsManager->RemoveDigits(lastdet); | |
369 | fDigitsManager->RemoveDictionaries(lastdet); | |
370 | fDigitsManager->ClearIndexes(lastdet); | |
371 | } | |
372 | ||
373 | lastdet = det; | |
374 | ||
375 | // Add a container for the digits of this detector | |
376 | digits = fDigitsManager->GetDigits(det); | |
377 | track0 = fDigitsManager->GetDictionary(det,0); | |
378 | track1 = fDigitsManager->GetDictionary(det,1); | |
379 | track2 = fDigitsManager->GetDictionary(det,2); | |
380 | ||
381 | // Allocate memory space for the digits buffer | |
382 | if (digits->GetNtime() == 0) | |
383 | { | |
384 | //AliDebug(5, Form("Alloc digits for det %d", det)); | |
385 | digits->Allocate(input.GetMaxRow(),input.GetMaxCol(), input.GetNumberOfTimeBins()); | |
386 | track0->Allocate(input.GetMaxRow(),input.GetMaxCol(), input.GetNumberOfTimeBins()); | |
387 | track1->Allocate(input.GetMaxRow(),input.GetMaxCol(), input.GetNumberOfTimeBins()); | |
388 | track2->Allocate(input.GetMaxRow(),input.GetMaxCol(), input.GetNumberOfTimeBins()); | |
389 | } | |
390 | ||
391 | indexes = fDigitsManager->GetIndexes(det); | |
392 | indexes->SetSM(input.GetSM()); | |
393 | indexes->SetStack(input.GetStack()); | |
394 | indexes->SetLayer(input.GetLayer()); | |
395 | indexes->SetDetNumber(det); | |
396 | if (indexes->IsAllocated() == kFALSE) | |
397 | indexes->Allocate(input.GetMaxRow(), input.GetMaxCol(), input.GetNumberOfTimeBins()); | |
398 | } | |
399 | ||
400 | for (it = 0; it < 3; it++) | |
401 | { | |
402 | if ( input.GetTimeBin() + it < input.GetNumberOfTimeBins() ) | |
403 | { | |
404 | if (input.GetSignals()[it] > 0) | |
405 | { | |
406 | digits->SetDataUnchecked(input.GetRow(), input.GetCol(), | |
407 | input.GetTimeBin() + it, input.GetSignals()[it]); | |
408 | ||
409 | indexes->AddIndexTBin(input.GetRow(), input.GetCol(), | |
410 | input.GetTimeBin() + it); | |
411 | track0->SetDataUnchecked(input.GetRow(), input.GetCol(), | |
412 | input.GetTimeBin() + it, 0); | |
413 | track1->SetDataUnchecked(input.GetRow(), input.GetCol(), | |
414 | input.GetTimeBin() + it, 0); | |
415 | track2->SetDataUnchecked(input.GetRow(), input.GetCol(), | |
416 | input.GetTimeBin() + it, 0); | |
417 | } | |
418 | } | |
419 | } | |
420 | } | |
421 | ||
422 | if (lastdet != -1) | |
423 | { | |
ecf39416 | 424 | Bool_t iclusterBranch = kFALSE; |
425 | if (indexes->HasEntry()) | |
426 | iclusterBranch = MakeClusters(lastdet); | |
427 | if (iclusterBranch == kFALSE) | |
428 | { | |
429 | WriteClusters(lastdet); | |
430 | ResetRecPoints(); | |
431 | } | |
432 | //MakeClusters(lastdet); | |
ca21baaa | 433 | if (digits) |
434 | { | |
435 | fDigitsManager->RemoveDigits(lastdet); | |
436 | fDigitsManager->RemoveDictionaries(lastdet); | |
437 | fDigitsManager->ClearIndexes(lastdet); | |
438 | } | |
439 | } | |
440 | ||
001be664 | 441 | delete fDigitsManager; |
442 | fDigitsManager = NULL; | |
ca21baaa | 443 | return kTRUE; |
444 | } | |
445 | ||
446 | //_____________________________________________________________________________ | |
447 | Bool_t AliTRDclusterizerV2::Raw2ClustersChamber(AliRawReader *rawReader) | |
448 | { | |
449 | // | |
450 | // Creates clusters from raw data | |
451 | // | |
452 | ||
453 | //AliDebug(1, "Raw2ClustersChamber"); | |
454 | ||
455 | // Create the digits manager | |
456 | // Create the digits manager | |
457 | if (!fDigitsManager) | |
458 | { | |
459 | fDigitsManager = new AliTRDdigitsManager(); | |
460 | fDigitsManager->CreateArrays(); | |
461 | } | |
ca21baaa | 462 | |
001be664 | 463 | fDigitsManager->SetUseDictionaries(fAddLabels); |
ca21baaa | 464 | |
ecf39416 | 465 | //AliTRDRawStream input(rawReader); |
466 | AliTRDRawStreamV2 input(rawReader); | |
f582272a | 467 | input.SetRawVersion( fRawVersion ); |
ca21baaa | 468 | input.Init(); |
ecf39416 | 469 | |
470 | AliInfo(Form("Stream version: %s", input.IsA()->GetName())); | |
ca21baaa | 471 | |
472 | Int_t det = 0; | |
473 | while ((det = input.NextChamber(fDigitsManager)) >= 0) | |
474 | { | |
ecf39416 | 475 | Bool_t iclusterBranch = kFALSE; |
ca21baaa | 476 | if (fDigitsManager->GetIndexes(det)->HasEntry()) |
ecf39416 | 477 | iclusterBranch = MakeClusters(det); |
478 | if (iclusterBranch == kFALSE) | |
479 | { | |
480 | WriteClusters(det); | |
481 | ResetRecPoints(); | |
482 | } | |
ca21baaa | 483 | fDigitsManager->RemoveDigits(det); |
484 | fDigitsManager->RemoveDictionaries(det); | |
485 | fDigitsManager->ClearIndexes(det); | |
486 | } | |
487 | ||
001be664 | 488 | delete fDigitsManager; |
489 | fDigitsManager = NULL; | |
ca21baaa | 490 | return kTRUE; |
491 | } | |
492 | ||
493 | //_____________________________________________________________________________ | |
494 | Bool_t AliTRDclusterizerV2::MakeClusters(Int_t det) | |
495 | { | |
496 | // | |
497 | // Generates the cluster. | |
498 | // | |
499 | ||
500 | // Get the digits | |
501 | // digits should be expanded beforehand! | |
502 | // digitsIn->Expand(); | |
503 | AliTRDdataArrayI *digitsIn = fDigitsManager->GetDigits(det); | |
504 | // This is to take care of switched off super modules | |
505 | if (digitsIn->GetNtime() == 0) | |
506 | { | |
507 | //AliDebug(5, Form("digitsIn->GetNtime() == 0 [%d]", det)); | |
508 | return kFALSE; | |
509 | } | |
510 | ||
511 | AliTRDSignalIndex *indexesIn = fDigitsManager->GetIndexes(det); | |
512 | if (indexesIn->IsAllocated() == kFALSE) | |
513 | { | |
514 | AliError("Indexes do not exist!"); | |
515 | return kFALSE; | |
516 | } | |
517 | ||
518 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); | |
519 | if (!calibration) { | |
520 | AliFatal("No AliTRDcalibDB instance available\n"); | |
521 | return kFALSE; | |
522 | } | |
523 | ||
524 | AliTRDSimParam *simParam = AliTRDSimParam::Instance(); | |
525 | if (!simParam) { | |
526 | AliError("No AliTRDSimParam instance available\n"); | |
527 | return kFALSE; | |
528 | } | |
529 | ||
530 | AliTRDRecParam *recParam = AliTRDRecParam::Instance(); | |
531 | if (!recParam) { | |
532 | AliError("No AliTRDRecParam instance available\n"); | |
533 | return kFALSE; | |
534 | } | |
535 | ||
536 | // ADC thresholds | |
ecf39416 | 537 | // Float_t ADCthreshold = simParam->GetADCthreshold(); |
538 | Float_t ADCthreshold = 0; // There is no ADC threshold anymore, and simParam should not be used ni clusterizer. KO | |
539 | ||
ca21baaa | 540 | // Threshold value for the maximum |
541 | Float_t maxThresh = recParam->GetClusMaxThresh(); | |
542 | // Threshold value for the digit signal | |
543 | Float_t sigThresh = recParam->GetClusSigThresh(); | |
544 | ||
545 | // Detector wise calibration object for t0 | |
546 | const AliTRDCalDet *calT0Det = calibration->GetT0Det(); | |
547 | // Detector wise calibration object for the gain factors | |
548 | const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet(); | |
549 | ||
550 | // Iteration limit for unfolding procedure | |
551 | const Float_t kEpsilon = 0.01; | |
552 | const Int_t kNclus = 3; | |
553 | const Int_t kNsig = 5; | |
554 | ||
555 | Int_t iUnfold = 0; | |
556 | Double_t ratioLeft = 1.0; | |
557 | Double_t ratioRight = 1.0; | |
558 | ||
559 | Double_t padSignal[kNsig]; | |
560 | Double_t clusterSignal[kNclus]; | |
561 | Double_t clusterPads[kNclus]; | |
562 | ||
563 | Int_t icham = indexesIn->GetChamber(); | |
564 | Int_t iplan = indexesIn->GetPlane(); | |
565 | Int_t isect = indexesIn->GetSM(); | |
566 | ||
567 | // Start clustering in the chamber | |
568 | ||
569 | Int_t idet = fGeometry->GetDetector(iplan,icham,isect); | |
570 | if (idet != det) | |
571 | { | |
572 | AliError("Strange Detector number Missmatch!"); | |
573 | return kFALSE; | |
574 | } | |
575 | ||
576 | Int_t ilayer = AliGeomManager::kTRD1 + iplan; | |
577 | Int_t imodule = icham + AliTRDgeometry::Ncham() * isect; | |
578 | UShort_t volid = AliGeomManager::LayerToVolUID(ilayer,imodule); | |
579 | ||
001be664 | 580 | //Int_t nRowMax = digitsIn->GetNrow(); |
ca21baaa | 581 | Int_t nColMax = digitsIn->GetNcol(); |
582 | Int_t nTimeTotal = digitsIn->GetNtime(); | |
583 | ||
584 | AliTRDpadPlane *padPlane = fGeometry->GetPadPlane(iplan,icham); | |
585 | ||
586 | // Calibration object with pad wise values for t0 | |
587 | AliTRDCalROC *calT0ROC = calibration->GetT0ROC(idet); | |
588 | // Calibration object with pad wise values for the gain factors | |
589 | AliTRDCalROC *calGainFactorROC = calibration->GetGainFactorROC(idet); | |
590 | // Calibration value for chamber wise t0 | |
591 | Float_t calT0DetValue = calT0Det->GetValue(idet); | |
592 | // Calibration value for chamber wise gain factor | |
593 | Float_t calGainFactorDetValue = calGainFactorDet->GetValue(idet); | |
594 | ||
595 | Int_t nClusters = 0; | |
596 | ||
597 | // Apply the gain and the tail cancelation via digital filter | |
598 | AliTRDdataArrayF *digitsOut = new AliTRDdataArrayF(digitsIn->GetNrow() | |
599 | ,digitsIn->GetNcol() | |
600 | ,digitsIn->GetNtime()); | |
601 | ||
001be664 | 602 | // AliInfo(Form("nrows %d cols %d time %d", |
603 | // digitsIn->GetNrow() | |
604 | // ,digitsIn->GetNcol() | |
605 | // ,digitsIn->GetNtime())); | |
ca21baaa | 606 | |
001be664 | 607 | ResetHelperIndexes(indexesIn); |
ca21baaa | 608 | |
609 | Transform(digitsIn | |
610 | ,digitsOut | |
611 | ,indexesIn | |
001be664 | 612 | ,fIndexesOut |
613 | ,nTimeTotal | |
ca21baaa | 614 | ,ADCthreshold |
615 | ,calGainFactorROC | |
001be664 | 616 | ,calGainFactorDetValue); |
ca21baaa | 617 | |
618 | Int_t row = 0; | |
619 | Int_t col = 0; | |
620 | Int_t time = 0; | |
621 | Int_t iPad = 0; | |
622 | ||
001be664 | 623 | fIndexesOut->ResetCounters(); |
624 | while (fIndexesOut->NextRCTbinIndex(row, col, time)) | |
ca21baaa | 625 | { |
626 | Float_t signalM = TMath::Abs(digitsOut->GetDataUnchecked(row,col,time)); | |
627 | ||
628 | // Look for the maximum | |
629 | if (signalM >= maxThresh) | |
630 | { | |
631 | ||
632 | if (col + 1 >= nColMax || col-1 < 0) | |
633 | continue; | |
634 | ||
635 | Float_t signalL = TMath::Abs(digitsOut->GetDataUnchecked(row,col+1 ,time)); | |
636 | ||
637 | Float_t signalR = TMath::Abs(digitsOut->GetDataUnchecked(row,col-1,time)); | |
638 | ||
639 | if ((TMath::Abs(signalL) <= signalM) && | |
640 | (TMath::Abs(signalR) < signalM)) | |
641 | { | |
642 | if ((TMath::Abs(signalL) >= sigThresh) || | |
643 | (TMath::Abs(signalR) >= sigThresh)) | |
644 | { | |
645 | // Maximum found, mark the position by a negative signal | |
646 | digitsOut->SetDataUnchecked(row,col,time,-signalM); | |
001be664 | 647 | fIndexesMaxima->AddIndexTBin(row,col,time); |
ca21baaa | 648 | } |
649 | } | |
650 | } | |
651 | } | |
652 | ||
653 | // The index to the first cluster of a given ROC | |
654 | Int_t firstClusterROC = -1; | |
655 | // The number of cluster in a given ROC | |
656 | Int_t nClusterROC = 0; | |
657 | ||
658 | // Now check the maxima and calculate the cluster position | |
001be664 | 659 | fIndexesMaxima->ResetCounters(); |
660 | while (fIndexesMaxima->NextRCTbinIndex(row, col, time)) | |
ca21baaa | 661 | { |
662 | // Maximum found ? | |
663 | if (digitsOut->GetDataUnchecked(row,col,time) < 0.0) { | |
664 | ||
665 | for (iPad = 0; iPad < kNclus; iPad++) { | |
666 | Int_t iPadCol = col - 1 + iPad; | |
667 | clusterSignal[iPad] = | |
668 | TMath::Abs(digitsOut->GetDataUnchecked(row,iPadCol,time)); | |
669 | } | |
670 | ||
671 | // Count the number of pads in the cluster | |
672 | Int_t nPadCount = 0; | |
673 | Int_t ii; | |
674 | // Look to the left | |
675 | ii = 0; | |
676 | while (TMath::Abs(digitsOut->GetDataUnchecked(row,col-ii ,time)) >= sigThresh) { | |
677 | nPadCount++; | |
678 | ii++; | |
679 | if (col-ii < 0) break; | |
680 | } | |
681 | // Look to the right | |
682 | ii = 0; | |
683 | while (TMath::Abs(digitsOut->GetDataUnchecked(row,col+ii+1,time)) >= sigThresh) { | |
684 | nPadCount++; | |
685 | ii++; | |
686 | if (col+ii+1 >= nColMax) break; | |
687 | } | |
688 | nClusters++; | |
689 | ||
690 | // Look for 5 pad cluster with minimum in the middle | |
691 | Bool_t fivePadCluster = kFALSE; | |
692 | if (col < (nColMax - 3)) { | |
693 | if (digitsOut->GetDataUnchecked(row,col+2,time) < 0) { | |
694 | fivePadCluster = kTRUE; | |
695 | } | |
696 | if ((fivePadCluster) && (col < (nColMax - 5))) { | |
697 | if (digitsOut->GetDataUnchecked(row,col+4,time) >= sigThresh) { | |
698 | fivePadCluster = kFALSE; | |
699 | } | |
700 | } | |
701 | if ((fivePadCluster) && (col > 1)) { | |
702 | if (digitsOut->GetDataUnchecked(row,col-2,time) >= sigThresh) { | |
703 | fivePadCluster = kFALSE; | |
704 | } | |
705 | } | |
706 | } | |
707 | ||
708 | // 5 pad cluster | |
709 | // Modify the signal of the overlapping pad for the left part | |
710 | // of the cluster which remains from a previous unfolding | |
711 | if (iUnfold) { | |
712 | clusterSignal[0] *= ratioLeft; | |
713 | iUnfold = 0; | |
714 | } | |
715 | ||
716 | // Unfold the 5 pad cluster | |
717 | if (fivePadCluster) { | |
718 | for (iPad = 0; iPad < kNsig; iPad++) { | |
719 | padSignal[iPad] = TMath::Abs(digitsOut->GetDataUnchecked(row | |
720 | ,col-1+iPad | |
721 | ,time)); | |
722 | } | |
723 | // Unfold the two maxima and set the signal on | |
724 | // the overlapping pad to the ratio | |
725 | ratioRight = Unfold(kEpsilon,iplan,padSignal); | |
726 | ratioLeft = 1.0 - ratioRight; | |
727 | clusterSignal[2] *= ratioRight; | |
728 | iUnfold = 1; | |
729 | } | |
730 | ||
731 | Double_t clusterCharge = clusterSignal[0] | |
732 | + clusterSignal[1] | |
733 | + clusterSignal[2]; | |
734 | ||
735 | // The position of the cluster | |
736 | clusterPads[0] = row + 0.5; | |
737 | // Take the shift of the additional time bins into account | |
738 | clusterPads[2] = time + 0.5; | |
739 | ||
740 | if (recParam->LUTOn()) { | |
741 | // Calculate the position of the cluster by using the | |
742 | // lookup table method | |
743 | clusterPads[1] = recParam->LUTposition(iplan,clusterSignal[0] | |
744 | ,clusterSignal[1] | |
745 | ,clusterSignal[2]); | |
746 | } | |
747 | else { | |
748 | // Calculate the position of the cluster by using the | |
749 | // center of gravity method | |
750 | for (Int_t i = 0; i < kNsig; i++) { | |
751 | padSignal[i] = 0.0; | |
752 | } | |
753 | padSignal[2] = TMath::Abs(digitsOut->GetDataUnchecked(row,col ,time)); // Central pad | |
754 | padSignal[1] = TMath::Abs(digitsOut->GetDataUnchecked(row,col-1,time)); // Left pad | |
755 | padSignal[3] = TMath::Abs(digitsOut->GetDataUnchecked(row,col+1,time)); // Right pad | |
756 | if ((col > 2) && | |
757 | (TMath::Abs(digitsOut->GetDataUnchecked(row,col-2,time)) < padSignal[1])) { | |
758 | padSignal[0] = TMath::Abs(digitsOut->GetDataUnchecked(row,col-2,time)); | |
759 | } | |
760 | if ((col < nColMax - 3) && | |
761 | (TMath::Abs(digitsOut->GetDataUnchecked(row,col+2,time)) < padSignal[3])) { | |
762 | padSignal[4] = TMath::Abs(digitsOut->GetDataUnchecked(row,col+2,time)); | |
763 | } | |
764 | clusterPads[1] = GetCOG(padSignal); | |
765 | } | |
766 | ||
767 | Double_t q0 = clusterSignal[0]; | |
768 | Double_t q1 = clusterSignal[1]; | |
769 | Double_t q2 = clusterSignal[2]; | |
770 | Double_t clusterSigmaY2 = (q1 * (q0 + q2) + 4.0 * q0 * q2) | |
771 | / (clusterCharge*clusterCharge); | |
772 | ||
773 | // | |
774 | // Calculate the position and the error | |
775 | // | |
776 | ||
777 | // Correct for t0 (sum of chamber and pad wise values !!!) | |
778 | Float_t calT0ROCValue = calT0ROC->GetValue(col,row); | |
779 | Char_t clusterTimeBin = ((Char_t) TMath::Nint(time - (calT0DetValue + calT0ROCValue))); | |
780 | Double_t colSize = padPlane->GetColSize(col); | |
781 | Double_t rowSize = padPlane->GetRowSize(row); | |
782 | ||
783 | Float_t clusterPos[3]; | |
784 | clusterPos[0] = padPlane->GetColPos(col) - (clusterPads[1] + 0.5) * colSize; | |
785 | clusterPos[1] = padPlane->GetRowPos(row) - 0.5 * rowSize; | |
786 | clusterPos[2] = CalcXposFromTimebin(clusterPads[2],idet,col,row); | |
787 | Float_t clusterSig[2]; | |
788 | clusterSig[0] = (clusterSigmaY2 + 1.0/12.0) * colSize*colSize; | |
789 | clusterSig[1] = rowSize * rowSize / 12.0; | |
790 | ||
791 | // Store the amplitudes of the pads in the cluster for later analysis | |
792 | Short_t signals[7] = { 0, 0, 0, 0, 0, 0, 0 }; | |
793 | for (Int_t jPad = col-3; jPad <= col+3; jPad++) { | |
794 | if ((jPad < 0) || | |
795 | (jPad >= nColMax-1)) { | |
796 | continue; | |
797 | } | |
798 | signals[jPad-col+3] = TMath::Nint(TMath::Abs(digitsOut->GetDataUnchecked(row,jPad,time))); | |
799 | } | |
800 | ||
801 | // Add the cluster to the output array | |
802 | // The track indices will be stored later | |
803 | AliTRDcluster *cluster = new AliTRDcluster(idet | |
804 | ,clusterCharge | |
805 | ,clusterPos | |
806 | ,clusterSig | |
807 | ,0x0 | |
808 | ,((Char_t) nPadCount) | |
809 | ,signals | |
810 | ,((UChar_t) col) | |
811 | ,clusterTimeBin | |
812 | ,clusterPads[1] | |
813 | ,volid); | |
814 | // Temporarily store the row, column and time bin of the center pad | |
815 | // Used to later on assign the track indices | |
816 | cluster->SetLabel( row,0); | |
817 | cluster->SetLabel( col,1); | |
818 | cluster->SetLabel(time,2); | |
819 | RecPoints()->Add(cluster); | |
820 | ||
821 | // Store the index of the first cluster in the current ROC | |
822 | if (firstClusterROC < 0) { | |
823 | firstClusterROC = RecPoints()->GetEntriesFast() - 1; | |
824 | } | |
825 | // Count the number of cluster in the current ROC | |
826 | nClusterROC++; | |
827 | ||
828 | } // if: Maximum found ? | |
829 | ||
830 | } | |
831 | delete digitsOut; | |
001be664 | 832 | //delete fIndexesOut; |
833 | //delete fIndexesMaxima; | |
ca21baaa | 834 | |
835 | if (fAddLabels) | |
836 | AddLabels(idet, firstClusterROC, nClusterROC); | |
837 | ||
838 | // Write the cluster and reset the array | |
839 | WriteClusters(idet); | |
840 | ResetRecPoints(); | |
841 | ||
842 | return kTRUE; | |
843 | ||
844 | } | |
845 | ||
846 | //_____________________________________________________________________________ | |
847 | Bool_t AliTRDclusterizerV2::AddLabels(Int_t idet, Int_t firstClusterROC, Int_t nClusterROC) | |
848 | { | |
849 | // | |
850 | // Add the track indices to the found clusters | |
851 | // | |
852 | ||
853 | const Int_t kNclus = 3; | |
854 | const Int_t kNdict = AliTRDdigitsManager::kNDict; | |
855 | const Int_t kNtrack = kNdict * kNclus; | |
856 | ||
857 | Int_t iClusterROC = 0; | |
858 | ||
859 | Int_t row = 0; | |
860 | Int_t col = 0; | |
861 | Int_t time = 0; | |
862 | Int_t iPad = 0; | |
863 | ||
864 | // Temporary array to collect the track indices | |
865 | Int_t *idxTracks = new Int_t[kNtrack*nClusterROC]; | |
866 | ||
867 | // Loop through the dictionary arrays one-by-one | |
868 | // to keep memory consumption low | |
869 | AliTRDdataArrayI *tracksIn = 0; | |
870 | for (Int_t iDict = 0; iDict < kNdict; iDict++) { | |
871 | ||
872 | tracksIn = fDigitsManager->GetDictionary(idet,iDict); | |
873 | // tracksIn should be expanded beforehand! | |
874 | ||
875 | // Loop though the clusters found in this ROC | |
876 | for (iClusterROC = 0; iClusterROC < nClusterROC; iClusterROC++) { | |
877 | ||
878 | AliTRDcluster *cluster = (AliTRDcluster *) | |
879 | RecPoints()->UncheckedAt(firstClusterROC+iClusterROC); | |
880 | row = cluster->GetLabel(0); | |
881 | col = cluster->GetLabel(1); | |
882 | time = cluster->GetLabel(2); | |
883 | ||
884 | for (iPad = 0; iPad < kNclus; iPad++) { | |
885 | Int_t iPadCol = col - 1 + iPad; | |
886 | Int_t index = tracksIn->GetDataUnchecked(row,iPadCol,time) - 1; | |
887 | idxTracks[3*iPad+iDict + iClusterROC*kNtrack] = index; | |
888 | } | |
889 | ||
890 | } | |
891 | ||
892 | // Compress the arrays | |
893 | // no do not compress - we will delete them when we are done with the detector | |
894 | //tracksIn->Compress(1,0); | |
895 | ||
896 | } | |
897 | ||
898 | // Copy the track indices into the cluster | |
899 | // Loop though the clusters found in this ROC | |
900 | for (iClusterROC = 0; iClusterROC < nClusterROC; iClusterROC++) { | |
901 | ||
902 | AliTRDcluster *cluster = (AliTRDcluster *) | |
903 | RecPoints()->UncheckedAt(firstClusterROC+iClusterROC); | |
904 | cluster->SetLabel(-9999,0); | |
905 | cluster->SetLabel(-9999,1); | |
906 | cluster->SetLabel(-9999,2); | |
907 | ||
908 | cluster->AddTrackIndex(&idxTracks[iClusterROC*kNtrack]); | |
909 | ||
910 | } | |
911 | ||
912 | delete [] idxTracks; | |
913 | ||
914 | return kTRUE; | |
915 | } | |
916 | ||
917 | //_____________________________________________________________________________ | |
918 | Double_t AliTRDclusterizerV2::GetCOG(Double_t signal[5]) | |
919 | { | |
920 | // | |
921 | // Get COG position | |
922 | // Used for clusters with more than 3 pads - where LUT not applicable | |
923 | // | |
924 | ||
925 | Double_t sum = signal[0] | |
926 | + signal[1] | |
927 | + signal[2] | |
928 | + signal[3] | |
929 | + signal[4]; | |
930 | ||
931 | Double_t res = (0.0 * (-signal[0] + signal[4]) | |
932 | + (-signal[1] + signal[3])) / sum; | |
933 | ||
934 | return res; | |
935 | ||
936 | } | |
937 | ||
938 | //_____________________________________________________________________________ | |
939 | Double_t AliTRDclusterizerV2::Unfold(Double_t eps, Int_t plane, Double_t *padSignal) | |
940 | { | |
941 | // | |
942 | // Method to unfold neighbouring maxima. | |
943 | // The charge ratio on the overlapping pad is calculated | |
944 | // until there is no more change within the range given by eps. | |
945 | // The resulting ratio is then returned to the calling method. | |
946 | // | |
947 | ||
948 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); | |
949 | if (!calibration) { | |
950 | AliError("No AliTRDcalibDB instance available\n"); | |
951 | return kFALSE; | |
952 | } | |
953 | ||
954 | Int_t irc = 0; | |
955 | Int_t itStep = 0; // Count iteration steps | |
956 | ||
957 | Double_t ratio = 0.5; // Start value for ratio | |
958 | Double_t prevRatio = 0.0; // Store previous ratio | |
959 | ||
960 | Double_t newLeftSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store left cluster signal | |
961 | Double_t newRightSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store right cluster signal | |
962 | Double_t newSignal[3] = { 0.0, 0.0, 0.0 }; | |
963 | ||
964 | // Start the iteration | |
965 | while ((TMath::Abs(prevRatio - ratio) > eps) && (itStep < 10)) { | |
966 | ||
967 | itStep++; | |
968 | prevRatio = ratio; | |
969 | ||
970 | // Cluster position according to charge ratio | |
971 | Double_t maxLeft = (ratio*padSignal[2] - padSignal[0]) | |
972 | / (padSignal[0] + padSignal[1] + ratio*padSignal[2]); | |
973 | Double_t maxRight = (padSignal[4] - (1-ratio)*padSignal[2]) | |
974 | / ((1.0 - ratio)*padSignal[2] + padSignal[3] + padSignal[4]); | |
975 | ||
976 | // Set cluster charge ratio | |
977 | irc = calibration->PadResponse(1.0,maxLeft ,plane,newSignal); | |
978 | Double_t ampLeft = padSignal[1] / newSignal[1]; | |
979 | irc = calibration->PadResponse(1.0,maxRight,plane,newSignal); | |
980 | Double_t ampRight = padSignal[3] / newSignal[1]; | |
981 | ||
982 | // Apply pad response to parameters | |
983 | irc = calibration->PadResponse(ampLeft ,maxLeft ,plane,newLeftSignal ); | |
984 | irc = calibration->PadResponse(ampRight,maxRight,plane,newRightSignal); | |
985 | ||
986 | // Calculate new overlapping ratio | |
987 | ratio = TMath::Min((Double_t)1.0,newLeftSignal[2] / | |
988 | (newLeftSignal[2] + newRightSignal[0])); | |
989 | ||
990 | } | |
991 | ||
992 | return ratio; | |
993 | ||
994 | } | |
995 | ||
996 | //_____________________________________________________________________________ | |
997 | void AliTRDclusterizerV2::Transform(AliTRDdataArrayI *digitsIn | |
998 | , AliTRDdataArrayF *digitsOut | |
999 | , AliTRDSignalIndex *indexesIn | |
1000 | , AliTRDSignalIndex *indexesOut | |
ca21baaa | 1001 | , Int_t nTimeTotal |
1002 | , Float_t ADCthreshold | |
1003 | , AliTRDCalROC *calGainFactorROC | |
1004 | , Float_t calGainFactorDetValue) | |
1005 | { | |
1006 | // | |
1007 | // Apply gain factor | |
1008 | // Apply tail cancelation: Transform digitsIn to digitsOut | |
1009 | // | |
1010 | ||
1011 | Int_t iRow = 0; | |
1012 | Int_t iCol = 0; | |
1013 | Int_t iTime = 0; | |
1014 | ||
1015 | AliTRDRecParam *recParam = AliTRDRecParam::Instance(); | |
1016 | if (!recParam) { | |
1017 | AliError("No AliTRDRecParam instance available\n"); | |
1018 | return; | |
1019 | } | |
1020 | ||
1021 | Double_t *inADC = new Double_t[nTimeTotal]; // ADC data before tail cancellation | |
1022 | Double_t *outADC = new Double_t[nTimeTotal]; // ADC data after tail cancellation | |
1023 | indexesIn->ResetCounters(); | |
1024 | while (indexesIn->NextRCIndex(iRow, iCol)) | |
1025 | { | |
1026 | Float_t calGainFactorROCValue = calGainFactorROC->GetValue(iCol,iRow); | |
1027 | Double_t gain = calGainFactorDetValue | |
1028 | * calGainFactorROCValue; | |
1029 | ||
1030 | for (iTime = 0; iTime < nTimeTotal; iTime++) | |
001be664 | 1031 | { |
ca21baaa | 1032 | // |
1033 | // Add gain | |
1034 | // | |
1035 | inADC[iTime] = digitsIn->GetDataUnchecked(iRow,iCol,iTime); | |
1036 | inADC[iTime] /= gain; | |
1037 | outADC[iTime] = inADC[iTime]; | |
1038 | } | |
1039 | ||
1040 | // Apply the tail cancelation via the digital filter | |
1041 | if (recParam->TCOn()) { | |
1042 | DeConvExp(inADC,outADC,nTimeTotal,recParam->GetTCnexp()); | |
1043 | } | |
ecf39416 | 1044 | |
ca21baaa | 1045 | indexesIn->ResetTbinCounter(); |
1046 | while (indexesIn->NextTbinIndex(iTime)) | |
1047 | { | |
1048 | // Store the amplitude of the digit if above threshold | |
1049 | if (outADC[iTime] > ADCthreshold) | |
1050 | { | |
1051 | digitsOut->SetDataUnchecked(iRow,iCol,iTime,outADC[iTime]); | |
001be664 | 1052 | //AliDebug(5, Form("add index %d", indexesIn->GetDetNumber())); |
ca21baaa | 1053 | indexesOut->AddIndexTBin(iRow,iCol,iTime); |
1054 | } | |
1055 | } //while itime | |
1056 | }//while irow icol | |
1057 | ||
1058 | delete [] inADC; | |
1059 | delete [] outADC; | |
1060 | ||
001be664 | 1061 | //AliDebug(5, Form("Stop %d", indexesIn->GetDetNumber())); |
ca21baaa | 1062 | |
1063 | return; | |
1064 | ||
1065 | } | |
1066 | ||
1067 | //_____________________________________________________________________________ | |
1068 | void AliTRDclusterizerV2::DeConvExp(Double_t *source, Double_t *target | |
1069 | , Int_t n, Int_t nexp) | |
1070 | { | |
1071 | // | |
1072 | // Tail cancellation by deconvolution for PASA v4 TRF | |
1073 | // | |
1074 | ||
1075 | Double_t rates[2]; | |
1076 | Double_t coefficients[2]; | |
1077 | ||
1078 | // Initialization (coefficient = alpha, rates = lambda) | |
1079 | Double_t R1 = 1.0; | |
1080 | Double_t R2 = 1.0; | |
1081 | Double_t C1 = 0.5; | |
1082 | Double_t C2 = 0.5; | |
1083 | ||
1084 | if (nexp == 1) { // 1 Exponentials | |
1085 | R1 = 1.156; | |
1086 | R2 = 0.130; | |
1087 | C1 = 0.066; | |
1088 | C2 = 0.000; | |
1089 | } | |
1090 | if (nexp == 2) { // 2 Exponentials | |
1091 | R1 = 1.156; | |
1092 | R2 = 0.130; | |
1093 | C1 = 0.114; | |
1094 | C2 = 0.624; | |
1095 | } | |
1096 | ||
1097 | coefficients[0] = C1; | |
1098 | coefficients[1] = C2; | |
1099 | ||
1100 | Double_t Dt = 0.1; | |
1101 | ||
1102 | rates[0] = TMath::Exp(-Dt/(R1)); | |
1103 | rates[1] = TMath::Exp(-Dt/(R2)); | |
1104 | ||
1105 | Int_t i = 0; | |
1106 | Int_t k = 0; | |
1107 | ||
1108 | Double_t reminder[2]; | |
1109 | Double_t correction; | |
1110 | Double_t result; | |
1111 | ||
1112 | // Attention: computation order is important | |
1113 | correction = 0.0; | |
1114 | for (k = 0; k < nexp; k++) { | |
1115 | reminder[k] = 0.0; | |
1116 | } | |
1117 | for (i = 0; i < n; i++) { | |
1118 | result = (source[i] - correction); // No rescaling | |
1119 | target[i] = result; | |
1120 | ||
1121 | for (k = 0; k < nexp; k++) { | |
1122 | reminder[k] = rates[k] * (reminder[k] + coefficients[k] * result); | |
1123 | } | |
1124 | correction = 0.0; | |
1125 | for (k = 0; k < nexp; k++) { | |
1126 | correction += reminder[k]; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | } |