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28752ff4 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
88cb7938 | 16 | /* $Id$ */ |
ba030c0e | 17 | |
70479d0e | 18 | #include <Riostream.h> |
116cbefd | 19 | #include <TDirectory.h> |
116cbefd | 20 | #include <TPDGCode.h> |
28752ff4 | 21 | |
cf286af7 | 22 | #include "AliRun.h" |
23 | #include "AliRunDigitizer.h" | |
88cb7938 | 24 | #include "AliRunLoader.h" |
25 | #include "AliLoader.h" | |
88cb7938 | 26 | |
27 | #include "AliMUONDigitizer.h" | |
28 | #include "AliMUONConstants.h" | |
29 | #include "AliMUONChamber.h" | |
30 | #include "AliMUONHitMapA1.h" | |
28752ff4 | 31 | #include "AliMUON.h" |
116cbefd | 32 | #include "AliMUONChamber.h" |
33 | #include "AliMUONConstants.h" | |
34 | #include "AliMUONDigit.h" | |
35 | #include "AliMUONDigitizer.h" | |
28752ff4 | 36 | #include "AliMUONHit.h" |
116cbefd | 37 | #include "AliMUONHitMapA1.h" |
28752ff4 | 38 | #include "AliMUONPadHit.h" |
28752ff4 | 39 | #include "AliMUONTransientDigit.h" |
cf286af7 | 40 | |
41 | ///////////////////////////////////////////////////////////////////////////////////// | |
42 | // | |
43 | // AliMUONDigitizer should be base abstract class of all digitisers in the MUON | |
44 | // module. It implements the common functionality of looping over input streams | |
45 | // filling the fTDList and writing the fTDList to the output stream. | |
46 | // Inheriting digitizers need to override certain methods to choose and initialize | |
47 | // the correct input and output trees, apply the correct detector response if any | |
48 | // and implement how the transient digits are generated from the input stream. | |
49 | // | |
50 | ///////////////////////////////////////////////////////////////////////////////////// | |
28752ff4 | 51 | |
52 | ClassImp(AliMUONDigitizer) | |
53 | ||
54 | //___________________________________________ | |
cf286af7 | 55 | AliMUONDigitizer::AliMUONDigitizer() : |
56 | AliDigitizer(), | |
57 | fHitMap(0), | |
58 | fTDList(0), | |
59 | fTDCounter(0), | |
60 | fMask(0), | |
61 | fSignal(0), | |
62 | fDebug(0) | |
28752ff4 | 63 | { |
cf286af7 | 64 | // Default constructor. |
65 | // Initializes all pointers to NULL. | |
66 | ||
67 | runloader = NULL; | |
68 | gime = NULL; | |
69 | pMUON = NULL; | |
70 | muondata = NULL; | |
71 | }; | |
28752ff4 | 72 | |
73 | //___________________________________________ | |
cf286af7 | 74 | AliMUONDigitizer::AliMUONDigitizer(AliRunDigitizer* manager) : |
75 | AliDigitizer(manager), | |
76 | fHitMap(0), | |
77 | fTDList(0), | |
78 | fTDCounter(0), | |
79 | fMask(0), | |
80 | fSignal(0), | |
81 | fDebug(0) | |
28752ff4 | 82 | { |
cf286af7 | 83 | // Constructor which should be used rather than the default constructor. |
84 | // Initializes all pointers to NULL. | |
85 | ||
86 | runloader = NULL; | |
87 | gime = NULL; | |
88 | pMUON = NULL; | |
89 | muondata = NULL; | |
90 | }; | |
28752ff4 | 91 | |
8789635b | 92 | //___________________________________________ |
93 | AliMUONDigitizer::~AliMUONDigitizer() | |
94 | { | |
95 | // Destructor | |
96 | } | |
97 | ||
28752ff4 | 98 | //------------------------------------------------------------------------ |
cf286af7 | 99 | Bool_t AliMUONDigitizer::Init() |
28752ff4 | 100 | { |
cf286af7 | 101 | // Does nothing. |
102 | return kTRUE; | |
28752ff4 | 103 | } |
104 | ||
105 | //------------------------------------------------------------------------ | |
cf286af7 | 106 | void AliMUONDigitizer::Exec(Option_t* option) |
28752ff4 | 107 | { |
cf286af7 | 108 | // The main work loop starts here. |
109 | // The digitization process is broken up into two steps: | |
110 | // 1) Loop over input streams and create transient digits from the input. | |
111 | // Done in GenerateTransientDigits() | |
112 | // 2) Loop over the generated transient digits and write them to the output | |
113 | // stream. Done in CreateDigits() | |
114 | ||
115 | if (GetDebug() > 0) Info("Exec", "Running digitiser."); | |
116 | ParseOptions(option); | |
117 | ||
118 | if (fManager->GetNinputs() == 0) | |
119 | { | |
120 | Warning("Exec", "No inputs set, nothing to do."); | |
121 | return; | |
122 | }; | |
123 | ||
124 | if (! FetchLoaders(fManager->GetInputFolderName(0), runloader, gime) ) return; | |
125 | if (! FetchGlobalPointers(runloader) ) return; | |
126 | ||
127 | InitArrays(); | |
128 | ||
129 | if (GetDebug() > 1) Info("Exec", "Event Number is %d.", fManager->GetOutputEventNr()); | |
130 | ||
131 | // Loop over files to merge and to digitize | |
132 | fSignal = kTRUE; | |
133 | for (Int_t inputFile = 0; inputFile < fManager->GetNinputs(); inputFile++) | |
134 | { | |
135 | fMask = fManager->GetMask(inputFile); | |
136 | if (GetDebug() > 1) | |
137 | Info("Exec", "Digitising folder %d, with fMask = %d: %s", inputFile, fMask, | |
138 | (const char*)fManager->GetInputFolderName(inputFile)); | |
139 | ||
140 | if (inputFile != 0) | |
141 | // If this is the first file then we already have the loaders loaded. | |
142 | if (! FetchLoaders(fManager->GetInputFolderName(inputFile), runloader, gime) ) | |
143 | continue; | |
144 | else | |
145 | // If this is not the first file then it is assumed to be background. | |
146 | fSignal = kFALSE; | |
147 | ||
148 | if (! InitInputData(gime) ) continue; | |
149 | GenerateTransientDigits(); | |
150 | CleanupInputData(gime); | |
151 | }; | |
152 | ||
153 | Bool_t ok = FetchLoaders(fManager->GetOutputFolderName(), runloader, gime); | |
154 | if (ok) ok = InitOutputData(gime); | |
155 | if (ok) CreateDigits(); | |
156 | if (ok) CleanupOutputData(gime); | |
157 | ||
158 | CleanupArrays(); | |
159 | }; | |
160 | ||
161 | //-------------------------------------------------------------------------- | |
162 | void AliMUONDigitizer::AddOrUpdateTransientDigit(AliMUONTransientDigit* mTD) | |
163 | { | |
164 | // Checks to see if the transient digit exists in the corresponding fHitMap. | |
165 | // If it does then the digit is updated otherwise it is added. | |
166 | ||
167 | if (ExistTransientDigit(mTD)) | |
168 | { | |
169 | UpdateTransientDigit(mTD); | |
170 | delete mTD; // The new digit can be deleted because it was not added. | |
171 | } | |
172 | else | |
173 | AddTransientDigit(mTD); | |
174 | }; | |
28752ff4 | 175 | |
176 | //------------------------------------------------------------------------ | |
cf286af7 | 177 | void AliMUONDigitizer::UpdateTransientDigit(AliMUONTransientDigit* mTD) |
28752ff4 | 178 | { |
cf286af7 | 179 | // Update the transient digit that is already in the fTDList by adding the new |
180 | // transient digits charges and track lists to the existing one. | |
181 | ||
182 | if (GetDebug() > 3) | |
183 | Info("UpdateTransientDigit", "Updating transient digit 0x%X", (void*)mTD); | |
184 | // Choosing the maping of the cathode plane of the chamber: | |
185 | Int_t iNchCpl= mTD->Chamber() + (mTD->Cathode()-1) * AliMUONConstants::NCh(); | |
186 | AliMUONTransientDigit *pdigit = | |
187 | static_cast<AliMUONTransientDigit*>( fHitMap[iNchCpl]->GetHit(mTD->PadX(),mTD->PadY()) ); | |
188 | ||
189 | // update charge | |
190 | pdigit->AddSignal( mTD->Signal() ); | |
191 | pdigit->AddPhysicsSignal( mTD->Physics() ); | |
192 | ||
193 | // update list of tracks | |
194 | Int_t ntracks = mTD->GetNTracks(); | |
195 | if (ntracks > kMAXTRACKS) // Truncate the number of tracks to kMAXTRACKS if we have to. | |
196 | { | |
197 | if (GetDebug() > 0) | |
198 | { | |
199 | Warning("UpdateTransientDigit", | |
200 | "TransientDigit returned the number of tracks to be %d, which is bigger than kMAXTRACKS.", | |
201 | ntracks); | |
202 | Warning("UpdateTransientDigit", "Reseting the number of tracks to be %d.", kMAXTRACKS); | |
203 | } | |
204 | ntracks = kMAXTRACKS; | |
205 | }; | |
206 | ||
207 | for (Int_t i = 0; i < ntracks; i++) | |
208 | { | |
209 | pdigit->UpdateTrackList( mTD->GetTrack(i), mTD->GetCharge(i) ); | |
210 | }; | |
211 | }; | |
28752ff4 | 212 | |
213 | //------------------------------------------------------------------------ | |
cf286af7 | 214 | void AliMUONDigitizer::AddTransientDigit(AliMUONTransientDigit* mTD) |
28752ff4 | 215 | { |
cf286af7 | 216 | // Adds the transient digit to the fTDList and sets the appropriate entry |
217 | // in the fHitMap arrays. | |
218 | ||
219 | if (GetDebug() > 3) | |
220 | Info("AddTransientDigit", "Adding transient digit 0x%X", (void*)mTD); | |
221 | // Choosing the maping of the cathode plane of the chamber: | |
222 | Int_t iNchCpl= mTD->Chamber() + (mTD->Cathode()-1) * AliMUONConstants::NCh(); | |
223 | fTDList->AddAtAndExpand(mTD, fTDCounter); | |
224 | fHitMap[iNchCpl]->SetHit( mTD->PadX(), mTD->PadY(), fTDCounter); | |
225 | fTDCounter++; | |
226 | }; | |
28752ff4 | 227 | |
228 | //------------------------------------------------------------------------ | |
cf286af7 | 229 | Bool_t AliMUONDigitizer::ExistTransientDigit(AliMUONTransientDigit* mTD) |
28752ff4 | 230 | { |
cf286af7 | 231 | // Checks if the transient digit already exists on the corresponding fHitMap. |
232 | // i.e. is there a transient digit on the same chamber, cathode and pad position | |
233 | // as mTD. If yes then kTRUE is returned else kFASLE is returned. | |
234 | ||
235 | // Choosing the maping of the cathode plane of the chamber: | |
236 | Int_t iNchCpl= mTD->Chamber() + (mTD->Cathode()-1) * AliMUONConstants::NCh(); | |
237 | return( fHitMap[iNchCpl]->TestHit(mTD->PadX(), mTD->PadY()) ); | |
238 | }; | |
28752ff4 | 239 | |
cf286af7 | 240 | //----------------------------------------------------------------------- |
241 | void AliMUONDigitizer::CreateDigits() | |
242 | { | |
243 | // Loops over the fTDList for each cathode, gets the correct signal for the | |
244 | // digit and adds the new digit to the output stream. | |
245 | ||
246 | if (GetDebug() > 1) Info("CreateDigits", "Creating digits..."); | |
247 | for (Int_t icat = 0; icat < 2; icat++) | |
248 | { | |
249 | // | |
250 | // Filling Digit List | |
251 | Int_t nentries = fTDList->GetEntriesFast(); | |
252 | for (Int_t nent = 0; nent < nentries; nent++) | |
253 | { | |
254 | AliMUONTransientDigit* td = (AliMUONTransientDigit*)fTDList->At(nent); | |
255 | if (td == NULL) continue; | |
256 | ||
257 | // Must be the same cathode, otherwise we will fill a mixture | |
258 | // of digits from both cathodes. | |
259 | if (icat != td->Cathode() - 1) continue; | |
260 | ||
261 | if (GetDebug() > 2) | |
262 | Info("CreateDigits", "Creating digit from transient digit 0x%X", (void*)td); | |
263 | ||
264 | Int_t q = GetSignalFrom(td); | |
265 | if (q > 0) AddDigit(td, q); | |
266 | }; | |
267 | FillOutputData(); | |
268 | }; | |
269 | }; | |
28752ff4 | 270 | |
271 | //------------------------------------------------------------------------ | |
cf286af7 | 272 | void AliMUONDigitizer::AddDigit(AliMUONTransientDigit* td, Int_t response_charge) |
28752ff4 | 273 | { |
cf286af7 | 274 | // Prepares the digits, track and charge arrays in preparation for a call to |
275 | // AddDigit(Int_t, Int_t[kMAXTRACKS], Int_t[kMAXTRACKS], Int_t[6]) | |
276 | // This method is called by CreateDigits() whenever a new digit needs to be added | |
277 | // to the output stream trees. | |
278 | // The response_charge value is used as the Signal of the new digit. | |
279 | // The OnWriteTransientDigit method is also called just before the adding the | |
280 | // digit to allow inheriting digitizers to be able to do some specific processing | |
281 | // at this point. | |
282 | ||
283 | Int_t tracks[kMAXTRACKS]; | |
284 | Int_t charges[kMAXTRACKS]; | |
285 | Int_t digits[6]; | |
88cb7938 | 286 | |
cf286af7 | 287 | digits[0] = td->PadX(); |
288 | digits[1] = td->PadY(); | |
289 | digits[2] = td->Cathode() - 1; | |
290 | digits[3] = response_charge; | |
291 | digits[4] = td->Physics(); | |
292 | digits[5] = td->Hit(); | |
293 | ||
294 | Int_t nptracks = td->GetNTracks(); | |
295 | if (nptracks > kMAXTRACKS) | |
296 | { | |
297 | if (GetDebug() > 0) | |
298 | { | |
299 | Warning("AddDigit", | |
300 | "TransientDigit returned the number of tracks to be %d, which is bigger than kMAXTRACKS.", | |
301 | nptracks); | |
302 | Warning("AddDigit", "Reseting the number of tracks to be %d.", kMAXTRACKS); | |
303 | } | |
304 | nptracks = kMAXTRACKS; | |
305 | }; | |
306 | ||
307 | for (Int_t i = 0; i < nptracks; i++) | |
308 | { | |
309 | tracks[i] = td->GetTrack(i); | |
310 | charges[i] = td->GetCharge(i); | |
311 | }; | |
312 | ||
313 | // Sort list of tracks according to charge | |
314 | SortTracks(tracks,charges,nptracks); | |
315 | ||
316 | if (nptracks < kMAXTRACKS ) | |
317 | { | |
318 | for (Int_t i = nptracks; i < kMAXTRACKS; i++) | |
319 | { | |
320 | tracks[i] = -1; | |
321 | charges[i] = 0; | |
322 | }; | |
323 | }; | |
324 | ||
325 | if (GetDebug() > 3) Info("AddDigit", "Adding digit with charge %d.", response_charge); | |
326 | ||
327 | OnWriteTransientDigit(td); | |
328 | AddDigit(td->Chamber(), tracks, charges, digits); | |
329 | }; | |
28752ff4 | 330 | |
cf286af7 | 331 | //------------------------------------------------------------------------ |
332 | void AliMUONDigitizer::OnCreateTransientDigit(AliMUONTransientDigit* /*digit*/, TObject* /*source_object*/) | |
333 | { | |
334 | // Does nothing. | |
335 | // | |
336 | // This is derived by Digitisers that want to trace which digits were made from | |
337 | // which hits. | |
338 | }; | |
28752ff4 | 339 | |
b8278504 | 340 | //------------------------------------------------------------------------ |
cf286af7 | 341 | void AliMUONDigitizer::OnWriteTransientDigit(AliMUONTransientDigit* /*digit*/) |
28752ff4 | 342 | { |
cf286af7 | 343 | // Does nothing. |
344 | // | |
345 | // This is derived by Digitisers that want to trace which digits were made from | |
346 | // which hits. | |
347 | }; | |
348 | ||
349 | //------------------------------------------------------------------------ | |
350 | Bool_t AliMUONDigitizer::FetchLoaders(const char* foldername, AliRunLoader*& runloader, AliMUONLoader*& muonloader) | |
351 | { | |
352 | // Fetches the run loader from the current folder, specified by 'foldername'. | |
353 | // The muon loader is then loaded from the fetched run loader. | |
354 | // kTRUE is returned if no error occurred otherwise kFALSE is returned. | |
355 | ||
356 | if (GetDebug() > 2) | |
357 | Info("FetchLoaders", "Fetching run loader and muon loader from folder: %s", foldername); | |
358 | ||
359 | runloader = AliRunLoader::GetRunLoader(foldername); | |
360 | if (runloader == NULL) | |
361 | { | |
362 | Error("FetchLoaders", "RunLoader not found in folder: %s", foldername); | |
363 | return kFALSE; | |
364 | } | |
365 | muonloader = (AliMUONLoader*) runloader->GetLoader("MUONLoader"); | |
366 | if (muonloader == NULL) | |
367 | { | |
368 | Error("FetchLoaders", "MUONLoader not found in folder: %s", foldername); | |
369 | return kFALSE; | |
370 | } | |
371 | return kTRUE; | |
372 | }; | |
373 | ||
374 | //------------------------------------------------------------------------ | |
375 | Bool_t AliMUONDigitizer::FetchGlobalPointers(AliRunLoader* runloader) | |
376 | { | |
377 | // Fetches the AliRun object into the global gAlice pointer from the specified | |
378 | // run loader. The AliRun object is loaded into memory using the run loader if | |
379 | // not yet loaded. The MUON module object is then loaded from gAlice and | |
380 | // AliMUONData fetched from the MUON module. | |
381 | // kTRUE is returned if no error occurred otherwise kFALSE is returned. | |
382 | ||
383 | if (GetDebug() > 2) | |
384 | Info("FetchGlobalPointers", "Fetching gAlice, MUON module and AliMUONData from runloader 0x%X.", | |
385 | (void*)runloader | |
386 | ); | |
387 | ||
388 | if (runloader->GetAliRun() == NULL) runloader->LoadgAlice(); | |
389 | gAlice = runloader->GetAliRun(); | |
390 | if (gAlice == NULL) | |
391 | { | |
392 | Error("FetchGlobalPointers", "Could not find the AliRun object in runloader 0x%X.", (void*)runloader); | |
393 | return kFALSE; | |
394 | }; | |
395 | pMUON = (AliMUON*) gAlice->GetDetector("MUON"); | |
396 | if (pMUON == NULL) | |
397 | { | |
398 | Error("FetchGlobalPointers", "Could not find the MUON module in runloader 0x%X.", (void*)runloader); | |
399 | return kFALSE; | |
400 | }; | |
401 | muondata = pMUON->GetMUONData(); | |
402 | if (muondata == NULL) | |
403 | { | |
404 | Error("FetchGlobalPointers", "Could not find AliMUONData object in runloader 0x%X.", (void*)runloader); | |
405 | return kFALSE; | |
406 | }; | |
407 | return kTRUE; | |
28752ff4 | 408 | } |
cf286af7 | 409 | |
410 | //------------------------------------------------------------------------ | |
411 | void AliMUONDigitizer::ParseOptions(Option_t* options) | |
412 | { | |
413 | // Called by the Exec method. ParseOptions should parse the option string given to the Exec method. | |
414 | // | |
415 | // The following options are defined: | |
416 | // "debug" - Sets the debug level to 99, which will show all debug messages. | |
417 | // "deb" - Same as "debug", implemented for backward comparability. | |
418 | // | |
419 | // If an invalid option is specified it is simply ignored. | |
420 | ||
421 | TString optionString = options; | |
422 | if (optionString.Data() == "debug" || | |
423 | optionString.Data() == "deb" // maintained for compatability. | |
424 | ) | |
425 | { | |
426 | Info("ParseOptions", "Called with option \"debug\"."); | |
427 | SetDebug(99); | |
428 | }; | |
429 | }; | |
430 | ||
431 | //------------------------------------------------------------------------ | |
432 | void AliMUONDigitizer::InitArrays() | |
433 | { | |
434 | // Creates a new fTDList object. | |
435 | // Also creates an array of 2 * chamber_number AliMUONHitMapA1 objects | |
436 | // in the fHitMaps array. Each one is set to a chamber and cathode | |
437 | // specific segmentation model. | |
438 | // | |
439 | // Note: the fTDList and fHitMap arrays must be NULL before calling this method. | |
440 | ||
441 | if (GetDebug() > 1) Info("InitArrays", "Initialising internal arrays."); | |
442 | if (GetDebug() > 3) Info("InitArrays", "Creating transient digits list."); | |
443 | fTDList = new TObjArray; | |
444 | ||
445 | // Array of pointer of the AliMUONHitMapA1: | |
446 | // two HitMaps per chamber, or one HitMap per cahtode plane | |
447 | fHitMap = new AliMUONHitMapA1* [2*AliMUONConstants::NCh()]; | |
448 | ||
449 | // Loop over chambers for the definition AliMUONHitMap | |
450 | for (Int_t i = 0; i < AliMUONConstants::NCh(); i++) | |
451 | { | |
452 | if (GetDebug() > 3) Info("InitArrays", "Creating hit map for chamber %d, cathode 1.", i+1); | |
453 | AliMUONChamber* chamber = &(pMUON->Chamber(i)); | |
454 | AliSegmentation* c1Segmentation = chamber->SegmentationModel(1); // Cathode plane 1 | |
455 | fHitMap[i] = new AliMUONHitMapA1(c1Segmentation, fTDList); | |
456 | if (GetDebug() > 3) Info("InitArrays", "Creating hit map for chamber %d, cathode 2.", i+1); | |
457 | AliSegmentation* c2Segmentation = chamber->SegmentationModel(2); // Cathode plane 2 | |
458 | fHitMap[i+AliMUONConstants::NCh()] = new AliMUONHitMapA1(c2Segmentation, fTDList); | |
459 | }; | |
460 | }; | |
461 | ||
462 | //------------------------------------------------------------------------ | |
463 | void AliMUONDigitizer::CleanupArrays() | |
464 | { | |
465 | // The arrays fTDList and fHitMap are deleted and the pointers set to NULL. | |
466 | ||
467 | if (GetDebug() > 1) Info("CleanupArrays", "Deleting internal arrays."); | |
468 | for(Int_t i = 0; i < 2*AliMUONConstants::NCh(); i++) | |
469 | { | |
470 | if (GetDebug() > 3) Info("CleanupArrays", "Deleting hit map for chamber %d, cathode %d.", | |
471 | i%AliMUONConstants::NCh()+1, i/AliMUONConstants::NCh()+1); | |
472 | delete fHitMap[i]; | |
473 | }; | |
474 | delete [] fHitMap; | |
475 | fHitMap = NULL; | |
476 | ||
477 | if (GetDebug() > 3) Info("CleanupArrays", "Deleting transient digits list."); | |
478 | fTDList->Delete(); | |
479 | delete fTDList; | |
480 | fTDList = NULL; | |
481 | }; | |
482 | ||
483 | //------------------------------------------------------------------------ | |
484 | void AliMUONDigitizer::SortTracks(Int_t *tracks, Int_t *charges, Int_t ntr) | |
485 | { | |
486 | // | |
487 | // Sort the list of tracks contributing to a given digit | |
488 | // Only the 3 most significant tracks are actually sorted | |
489 | // | |
490 | ||
491 | if (ntr <= 1) return; | |
492 | ||
493 | // | |
494 | // Loop over signals, only 3 times | |
495 | // | |
496 | ||
497 | Int_t qmax; | |
498 | Int_t jmax; | |
499 | Int_t idx[3] = {-2,-2,-2}; | |
500 | Int_t jch[3] = {-2,-2,-2}; | |
501 | Int_t jtr[3] = {-2,-2,-2}; | |
502 | Int_t i, j, imax; | |
503 | ||
504 | if (ntr < 3) imax = ntr; | |
505 | else imax=3; | |
506 | ||
507 | for(i = 0; i < imax; i++) | |
508 | { | |
509 | qmax=0; | |
510 | jmax=0; | |
511 | ||
512 | for(j = 0; j < ntr; j++) | |
513 | { | |
514 | if ( (i == 1 && j == idx[i-1]) || | |
515 | (i == 2 && (j == idx[i-1] || j == idx[i-2])) | |
516 | ) | |
517 | continue; | |
518 | ||
519 | if(charges[j] > qmax) | |
520 | { | |
521 | qmax = charges[j]; | |
522 | jmax = j; | |
523 | } | |
524 | } | |
525 | ||
526 | if(qmax > 0) | |
527 | { | |
528 | idx[i] = jmax; | |
529 | jch[i] = charges[jmax]; | |
530 | jtr[i] = tracks[jmax]; | |
531 | } | |
532 | ||
533 | } | |
534 | ||
535 | for(i = 0; i < 3; i++) | |
536 | { | |
537 | if (jtr[i] == -2) | |
538 | { | |
539 | charges[i] = 0; | |
540 | tracks[i] = 0; | |
541 | } | |
542 | else | |
543 | { | |
544 | charges[i] = jch[i]; | |
545 | tracks[i] = jtr[i]; | |
546 | } | |
547 | } | |
548 | }; |