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8d0843c6 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //////////////////////////////////// | |
06ca6d7b | 19 | /// |
c4ee792d | 20 | /// \class AliMUONVTrackReconstructor |
06ca6d7b | 21 | /// Virtual MUON track reconstructor in ALICE (class renamed from AliMUONEventReconstructor) |
22 | /// | |
23 | /// This class contains as data: | |
24 | /// * a pointer to the array of hits to be reconstructed (the event) | |
25 | /// * a pointer to the array of segments made with these hits inside each station | |
26 | /// * a pointer to the array of reconstructed tracks | |
27 | /// | |
28 | /// It contains as methods, among others: | |
29 | /// * EventReconstruct to build the muon tracks | |
30 | /// * EventReconstructTrigger to build the trigger tracks | |
31 | /// | |
c4ee792d | 32 | /// \author Philippe Pillot |
33 | /// | |
8d0843c6 | 34 | //////////////////////////////////// |
35 | ||
8d0843c6 | 36 | #include "AliMUONVTrackReconstructor.h" |
7ec3b9cf | 37 | |
38 | #include "AliMpDEManager.h" | |
8d0843c6 | 39 | #include "AliMUONConstants.h" |
40 | #include "AliMUONHitForRec.h" | |
208f139e | 41 | #include "AliMUONObjectPair.h" |
8d0843c6 | 42 | #include "AliMUONTriggerTrack.h" |
e1a10d41 | 43 | #include "AliMUONTriggerCircuit.h" |
8d0843c6 | 44 | #include "AliMUONLocalTrigger.h" |
45 | #include "AliMUONGlobalTrigger.h" | |
8d0843c6 | 46 | #include "AliMUONTrack.h" |
37827b29 | 47 | #include "AliMUONTrackParam.h" |
48 | #include "AliMUONTrackExtrap.h" | |
7771752e | 49 | #include "AliMUONTrackHitPattern.h" |
7ec3b9cf | 50 | #include "AliMUONVTrackStore.h" |
51 | #include "AliMUONVClusterStore.h" | |
52 | #include "AliMUONRawCluster.h" | |
8d0843c6 | 53 | #include "AliLog.h" |
54 | #include "AliTracker.h" | |
7ec3b9cf | 55 | #include "AliMUONVTriggerStore.h" |
56 | #include "AliMUONVTriggerTrackStore.h" | |
8d0843c6 | 57 | |
4889d34c | 58 | #include <Riostream.h> |
59 | #include <TClonesArray.h> | |
60 | #include <TMath.h> | |
61 | ||
78649106 | 62 | /// \cond CLASSIMP |
8d0843c6 | 63 | ClassImp(AliMUONVTrackReconstructor) // Class implementation in ROOT context |
78649106 | 64 | /// \endcond |
8d0843c6 | 65 | |
66 | //************* Defaults parameters for reconstruction | |
67 | const Double_t AliMUONVTrackReconstructor::fgkDefaultMinBendingMomentum = 3.0; | |
68 | const Double_t AliMUONVTrackReconstructor::fgkDefaultMaxBendingMomentum = 3000.0; | |
69 | const Double_t AliMUONVTrackReconstructor::fgkDefaultBendingResolution = 0.01; | |
70 | const Double_t AliMUONVTrackReconstructor::fgkDefaultNonBendingResolution = 0.144; | |
208f139e | 71 | const Double_t AliMUONVTrackReconstructor::fgkDefaultBendingVertexDispersion = 10.; |
72 | const Double_t AliMUONVTrackReconstructor::fgkDefaultNonBendingVertexDispersion = 10.; | |
73 | const Double_t AliMUONVTrackReconstructor::fgkDefaultMaxNormChi2MatchTrigger = 16.0; | |
8d0843c6 | 74 | |
75 | //__________________________________________________________________________ | |
7ec3b9cf | 76 | AliMUONVTrackReconstructor::AliMUONVTrackReconstructor() |
8d0843c6 | 77 | : TObject(), |
78 | fMinBendingMomentum(fgkDefaultMinBendingMomentum), | |
79 | fMaxBendingMomentum(fgkDefaultMaxBendingMomentum), | |
80 | fBendingResolution(fgkDefaultBendingResolution), | |
81 | fNonBendingResolution(fgkDefaultNonBendingResolution), | |
208f139e | 82 | fBendingVertexDispersion(fgkDefaultBendingVertexDispersion), |
83 | fNonBendingVertexDispersion(fgkDefaultNonBendingVertexDispersion), | |
84 | fMaxNormChi2MatchTrigger(fgkDefaultMaxNormChi2MatchTrigger), | |
8d0843c6 | 85 | fHitsForRecPtr(0x0), |
86 | fNHitsForRec(0), | |
87 | fNHitsForRecPerChamber(0x0), | |
88 | fIndexOfFirstHitForRecPerChamber(0x0), | |
8d0843c6 | 89 | fRecTracksPtr(0x0), |
7ec3b9cf | 90 | fNRecTracks(0) |
8d0843c6 | 91 | { |
92 | /// Constructor for class AliMUONVTrackReconstructor | |
8d0843c6 | 93 | fNHitsForRecPerChamber = new Int_t[AliMUONConstants::NTrackingCh()]; |
94 | fIndexOfFirstHitForRecPerChamber = new Int_t[AliMUONConstants::NTrackingCh()]; | |
95 | ||
8d0843c6 | 96 | // Memory allocation for the TClonesArray of hits for reconstruction |
97 | // Is 10000 the right size ???? | |
98 | fHitsForRecPtr = new TClonesArray("AliMUONHitForRec", 10000); | |
7ec3b9cf | 99 | fHitsForRecPtr->SetOwner(kTRUE); |
100 | ||
208f139e | 101 | // set the magnetic field for track extrapolations |
8d0843c6 | 102 | const AliMagF* kField = AliTracker::GetFieldMap(); |
103 | if (!kField) AliFatal("No field available"); | |
37827b29 | 104 | AliMUONTrackExtrap::SetField(kField); |
8d0843c6 | 105 | } |
106 | ||
107 | //__________________________________________________________________________ | |
108 | AliMUONVTrackReconstructor::~AliMUONVTrackReconstructor(void) | |
109 | { | |
110 | /// Destructor for class AliMUONVTrackReconstructor | |
8d0843c6 | 111 | delete [] fNHitsForRecPerChamber; |
112 | delete [] fIndexOfFirstHitForRecPerChamber; | |
8d0843c6 | 113 | delete fHitsForRecPtr; |
8d0843c6 | 114 | } |
115 | ||
7ec3b9cf | 116 | //__________________________________________________________________________ |
117 | void | |
118 | AliMUONVTrackReconstructor::AddHitsForRecFromRawClusters(const AliMUONVClusterStore& clusterStore) | |
119 | { | |
120 | /// Build internal array of hit for rec from clusterStore | |
121 | ||
122 | TIter next(clusterStore.CreateIterator()); | |
123 | AliMUONRawCluster* clus(0x0); | |
124 | Int_t iclus(0); | |
125 | ||
126 | while ( ( clus = static_cast<AliMUONRawCluster*>(next()) ) ) | |
127 | { | |
128 | // new AliMUONHitForRec from raw cluster | |
129 | // and increment number of AliMUONHitForRec's (total and in chamber) | |
130 | AliMUONHitForRec* hitForRec = new ((*fHitsForRecPtr)[fNHitsForRec]) AliMUONHitForRec(clus); | |
131 | fNHitsForRec++; | |
132 | // more information into HitForRec | |
133 | hitForRec->SetBendingReso2(clus->GetErrY() * clus->GetErrY()); | |
134 | hitForRec->SetNonBendingReso2(clus->GetErrX() * clus->GetErrX()); | |
135 | // original raw cluster | |
136 | Int_t ch = AliMpDEManager::GetChamberId(clus->GetDetElemId()); | |
137 | hitForRec->SetChamberNumber(ch); | |
138 | hitForRec->SetHitNumber(iclus); | |
139 | // Z coordinate of the raw cluster (cm) | |
140 | hitForRec->SetZ(clus->GetZ(0)); | |
141 | if (AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 3) { | |
142 | cout << "Chamber " << ch <<" raw cluster " << iclus << " : " << endl; | |
143 | clus->Print("full"); | |
144 | cout << "AliMUONHitForRec number (1...): " << fNHitsForRec << endl; | |
145 | hitForRec->Print("full"); | |
146 | } | |
147 | ++iclus; | |
148 | } // end of chamber loop | |
149 | ||
150 | SortHitsForRecWithIncreasingChamber(); | |
151 | ||
152 | AliDebug(1,"End of AddHitsForRecFromRawClusters"); | |
153 | ||
154 | if (AliLog::GetGlobalDebugLevel() > 0) | |
155 | { | |
156 | AliDebug(1, Form("NHitsForRec: %d",fNHitsForRec)); | |
157 | for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) | |
158 | { | |
159 | AliDebug(1, Form("Chamber(0...): %d",ch)); | |
160 | AliDebug(1, Form("NHitsForRec: %d", fNHitsForRecPerChamber[ch])); | |
161 | AliDebug(1, Form("Index(first HitForRec): %d", fIndexOfFirstHitForRecPerChamber[ch])); | |
162 | for (Int_t hit = fIndexOfFirstHitForRecPerChamber[ch]; | |
163 | hit < fIndexOfFirstHitForRecPerChamber[ch] + fNHitsForRecPerChamber[ch]; | |
164 | hit++) { | |
165 | AliDebug(1, Form("HitForRec index(0...): %d",hit)); | |
166 | ((*fHitsForRecPtr)[hit])->Dump(); | |
167 | } | |
168 | } | |
169 | } | |
170 | } | |
171 | ||
172 | //__________________________________________________________________________ | |
173 | void AliMUONVTrackReconstructor::EventReconstruct(const AliMUONVClusterStore& clusterStore, | |
174 | AliMUONVTrackStore& trackStore) | |
8d0843c6 | 175 | { |
22ccc301 | 176 | /// To reconstruct one event |
7ec3b9cf | 177 | AliDebug(1,""); |
22ccc301 | 178 | |
8d0843c6 | 179 | ResetTracks(); //AZ |
8d0843c6 | 180 | ResetHitsForRec(); //AZ |
7ec3b9cf | 181 | AddHitsForRecFromRawClusters(clusterStore); |
8d0843c6 | 182 | MakeTracks(); |
7771752e | 183 | |
8d0843c6 | 184 | // Add tracks to MUON data container |
7ec3b9cf | 185 | for (Int_t i=0; i<fNRecTracks; ++i) |
186 | { | |
8d0843c6 | 187 | AliMUONTrack * track = (AliMUONTrack*) fRecTracksPtr->At(i); |
7ec3b9cf | 188 | trackStore.Add(*track); |
8d0843c6 | 189 | } |
190 | } | |
191 | ||
7ec3b9cf | 192 | //__________________________________________________________________________ |
8d0843c6 | 193 | void AliMUONVTrackReconstructor::ResetTracks(void) |
194 | { | |
195 | /// To reset the TClonesArray of reconstructed tracks | |
7ec3b9cf | 196 | if (fRecTracksPtr) fRecTracksPtr->Clear("C"); |
8d0843c6 | 197 | // Delete in order that the Track destructors are called, |
198 | // hence the space for the TClonesArray of pointers to TrackHit's is freed | |
199 | fNRecTracks = 0; | |
200 | return; | |
201 | } | |
202 | ||
8d0843c6 | 203 | //__________________________________________________________________________ |
204 | void AliMUONVTrackReconstructor::ResetHitsForRec(void) | |
205 | { | |
206 | /// To reset the array and the number of HitsForRec, | |
207 | /// and also the number of HitsForRec | |
208 | /// and the index of the first HitForRec per chamber | |
7ec3b9cf | 209 | if (fHitsForRecPtr) fHitsForRecPtr->Clear("C"); |
8d0843c6 | 210 | fNHitsForRec = 0; |
211 | for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) | |
212 | fNHitsForRecPerChamber[ch] = fIndexOfFirstHitForRecPerChamber[ch] = 0; | |
213 | return; | |
214 | } | |
215 | ||
216 | //__________________________________________________________________________ | |
217 | void AliMUONVTrackReconstructor::SortHitsForRecWithIncreasingChamber() | |
218 | { | |
219 | /// Sort HitsForRec's in increasing order with respect to chamber number. | |
220 | /// Uses the function "Compare". | |
221 | /// Update the information for HitsForRec per chamber too. | |
222 | Int_t ch, nhits, prevch; | |
223 | fHitsForRecPtr->Sort(); | |
224 | for (ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) { | |
225 | fNHitsForRecPerChamber[ch] = 0; | |
226 | fIndexOfFirstHitForRecPerChamber[ch] = 0; | |
227 | } | |
228 | prevch = 0; // previous chamber | |
229 | nhits = 0; // number of hits in current chamber | |
230 | // Loop over HitsForRec | |
231 | for (Int_t hit = 0; hit < fNHitsForRec; hit++) { | |
232 | // chamber number (0...) | |
233 | ch = ((AliMUONHitForRec*) ((*fHitsForRecPtr)[hit]))->GetChamberNumber(); | |
234 | // increment number of hits in current chamber | |
235 | (fNHitsForRecPerChamber[ch])++; | |
236 | // update index of first HitForRec in current chamber | |
237 | // if chamber number different from previous one | |
238 | if (ch != prevch) { | |
239 | fIndexOfFirstHitForRecPerChamber[ch] = hit; | |
240 | prevch = ch; | |
241 | } | |
242 | } | |
243 | return; | |
244 | } | |
245 | ||
246 | //__________________________________________________________________________ | |
208f139e | 247 | TClonesArray* AliMUONVTrackReconstructor::MakeSegmentsInStation(Int_t station) |
8d0843c6 | 248 | { |
208f139e | 249 | /// To make the list of segments in station(0..) "Station" from the list of hits to be reconstructed. |
250 | /// Return a new TClonesArray of segments. | |
251 | /// It is the responsibility of the user to delete it afterward. | |
252 | AliDebug(1,Form("Enter MakeSegmentsPerStation (0...) %d",station)); | |
253 | ||
8d0843c6 | 254 | AliMUONHitForRec *hit1Ptr, *hit2Ptr; |
208f139e | 255 | AliMUONObjectPair *segment; |
22ccc301 | 256 | Double_t bendingSlope = 0, impactParam = 0., bendingMomentum = 0.; // to avoid compilation warning |
7ec3b9cf | 257 | // first and second chambers (0...) in the station |
208f139e | 258 | Int_t ch1 = 2 * station; |
8d0843c6 | 259 | Int_t ch2 = ch1 + 1; |
7ec3b9cf | 260 | |
208f139e | 261 | // list of segments |
262 | TClonesArray *segments = new TClonesArray("AliMUONObjectPair", fNHitsForRecPerChamber[ch2]); | |
7ec3b9cf | 263 | segments->SetOwner(kTRUE); |
264 | ||
208f139e | 265 | // Loop over HitForRec's in the first chamber of the station |
8d0843c6 | 266 | for (Int_t hit1 = fIndexOfFirstHitForRecPerChamber[ch1]; |
267 | hit1 < fIndexOfFirstHitForRecPerChamber[ch1] + fNHitsForRecPerChamber[ch1]; | |
7ec3b9cf | 268 | hit1++) |
269 | { | |
8d0843c6 | 270 | // pointer to the HitForRec |
271 | hit1Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit1]); | |
208f139e | 272 | // Loop over HitsForRec's in the second chamber of the station |
8d0843c6 | 273 | for (Int_t hit2 = fIndexOfFirstHitForRecPerChamber[ch2]; |
7ec3b9cf | 274 | hit2 < fIndexOfFirstHitForRecPerChamber[ch2] + fNHitsForRecPerChamber[ch2]; |
275 | hit2++) | |
276 | { | |
8d0843c6 | 277 | // pointer to the HitForRec |
278 | hit2Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit2]); | |
7ec3b9cf | 279 | if ( hit1Ptr->GetZ() - hit2Ptr->GetZ() != 0. ) |
280 | { | |
22ccc301 | 281 | // bending slope |
208f139e | 282 | bendingSlope = (hit1Ptr->GetBendingCoor() - hit2Ptr->GetBendingCoor()) / (hit1Ptr->GetZ() - hit2Ptr->GetZ()); |
283 | // impact parameter | |
284 | impactParam = hit1Ptr->GetBendingCoor() - hit1Ptr->GetZ() * bendingSlope; | |
285 | // absolute value of bending momentum | |
7ec3b9cf | 286 | bendingMomentum = TMath::Abs(AliMUONTrackExtrap::GetBendingMomentumFromImpactParam(impactParam)); |
287 | } else | |
288 | { | |
208f139e | 289 | AliWarning("hit1Ptr->GetZ() = hit2Ptr->GetZ(): no segment created"); |
290 | continue; | |
291 | } | |
22ccc301 | 292 | // check for bending momentum within tolerances |
7ec3b9cf | 293 | if ((bendingMomentum < fMaxBendingMomentum) && (bendingMomentum > fMinBendingMomentum)) |
294 | { | |
295 | // make new segment | |
296 | segment = new ((*segments)[segments->GetLast()+1]) AliMUONObjectPair(hit1Ptr, hit2Ptr, kFALSE, kFALSE); | |
297 | if (AliLog::GetGlobalDebugLevel() > 1) { | |
298 | cout << "segmentIndex(0...): " << segments->GetLast() << endl; | |
299 | segment->Dump(); | |
300 | cout << "HitForRec in first chamber" << endl; | |
301 | hit1Ptr->Dump(); | |
302 | cout << "HitForRec in second chamber" << endl; | |
303 | hit2Ptr->Dump(); | |
304 | } | |
8d0843c6 | 305 | } |
306 | } //for (Int_t hit2 | |
307 | } // for (Int_t hit1... | |
208f139e | 308 | AliDebug(1,Form("Station: %d NSegments: %d ", station, segments->GetEntriesFast())); |
309 | return segments; | |
8d0843c6 | 310 | } |
311 | ||
7ec3b9cf | 312 | //__________________________________________________________________________ |
313 | void AliMUONVTrackReconstructor::ValidateTracksWithTrigger(AliMUONVTrackStore& trackStore, | |
314 | const AliMUONVTriggerTrackStore& triggerTrackStore, | |
315 | const AliMUONVTriggerStore& triggerStore, | |
316 | const AliMUONTrackHitPattern& trackHitPattern) | |
8d0843c6 | 317 | { |
318 | /// Try to match track from tracking system with trigger track | |
06ca6d7b | 319 | static const Double_t kDistSigma[3]={1,1,0.02}; // sigma of distributions (trigger-track) X,Y,slopeY |
208f139e | 320 | |
7771752e | 321 | Int_t matchTrigger; |
7ec3b9cf | 322 | Int_t loTrgNum(-1); |
8d0843c6 | 323 | Double_t distTriggerTrack[3]; |
208f139e | 324 | Double_t xTrack, yTrack, ySlopeTrack, chi2MatchTrigger, minChi2MatchTrigger, chi2; |
7ec3b9cf | 325 | |
326 | TIter itTrack(trackStore.CreateIterator()); | |
327 | AliMUONTrack* track; | |
8d0843c6 | 328 | |
7ec3b9cf | 329 | while ( ( track = static_cast<AliMUONTrack*>(itTrack()) ) ) |
330 | { | |
423b32ca | 331 | matchTrigger = 0; |
8d0843c6 | 332 | chi2MatchTrigger = 0.; |
c6ba19f7 | 333 | loTrgNum = -1; |
7771752e | 334 | Int_t doubleMatch=-1; // Check if track matches 2 trigger tracks |
335 | Double_t doubleChi2 = -1.; | |
7ec3b9cf | 336 | |
337 | AliMUONTrackParam trackParam(*((AliMUONTrackParam*) (track->GetTrackParamAtHit()->Last()))); | |
37827b29 | 338 | AliMUONTrackExtrap::ExtrapToZ(&trackParam, AliMUONConstants::DefaultChamberZ(10)); // extrap to 1st trigger chamber |
8d0843c6 | 339 | |
340 | xTrack = trackParam.GetNonBendingCoor(); | |
341 | yTrack = trackParam.GetBendingCoor(); | |
342 | ySlopeTrack = trackParam.GetBendingSlope(); | |
208f139e | 343 | minChi2MatchTrigger = 999.; |
7ec3b9cf | 344 | |
345 | AliMUONTriggerTrack *triggerTrack; | |
346 | TIter itTriggerTrack(triggerTrackStore.CreateIterator()); | |
347 | while ( ( triggerTrack = static_cast<AliMUONTriggerTrack*>(itTriggerTrack() ) ) ) | |
348 | { | |
06ca6d7b | 349 | distTriggerTrack[0] = (triggerTrack->GetX11()-xTrack)/kDistSigma[0]; |
350 | distTriggerTrack[1] = (triggerTrack->GetY11()-yTrack)/kDistSigma[1]; | |
351 | distTriggerTrack[2] = (TMath::Tan(triggerTrack->GetThetay())-ySlopeTrack)/kDistSigma[2]; | |
208f139e | 352 | chi2 = 0.; |
353 | for (Int_t iVar = 0; iVar < 3; iVar++) chi2 += distTriggerTrack[iVar]*distTriggerTrack[iVar]; | |
354 | chi2 /= 3.; // Normalized Chi2: 3 degrees of freedom (X,Y,slopeY) | |
7ec3b9cf | 355 | if (chi2 < fMaxNormChi2MatchTrigger) |
356 | { | |
357 | Bool_t isDoubleTrack = (TMath::Abs(chi2 - minChi2MatchTrigger)<1.); | |
358 | if (chi2 < minChi2MatchTrigger && chi2 < fMaxNormChi2MatchTrigger) | |
359 | { | |
360 | if(isDoubleTrack) | |
361 | { | |
362 | doubleMatch = loTrgNum; | |
363 | doubleChi2 = chi2MatchTrigger; | |
364 | } | |
365 | minChi2MatchTrigger = chi2; | |
366 | chi2MatchTrigger = chi2; | |
367 | loTrgNum = triggerTrack->GetLoTrgNum(); | |
368 | AliMUONLocalTrigger* locTrg = triggerStore.FindLocal(loTrgNum); | |
369 | matchTrigger=1; | |
370 | if(locTrg->LoLpt()>0)matchTrigger=2; | |
371 | if(locTrg->LoHpt()>0)matchTrigger=3; | |
372 | } | |
373 | else if(isDoubleTrack) | |
374 | { | |
375 | doubleMatch = triggerTrack->GetLoTrgNum(); | |
376 | doubleChi2 = chi2; | |
377 | } | |
8d0843c6 | 378 | } |
8d0843c6 | 379 | } |
7ec3b9cf | 380 | if(doubleMatch>=0) |
381 | { // If two trigger tracks match, select the one passing more trigger cuts | |
382 | AliDebug(1, Form("Two candidates found: %i and %i",loTrgNum,doubleMatch)); | |
383 | AliMUONLocalTrigger* locTrg1 = triggerStore.FindLocal(doubleMatch); | |
384 | if((locTrg1->LoLpt()>0 && matchTrigger<2) || (locTrg1->LoHpt() && matchTrigger<3)) | |
385 | { | |
386 | if(locTrg1->LoHpt()>0)matchTrigger=3; | |
387 | else matchTrigger=2; | |
388 | loTrgNum = doubleMatch; | |
389 | chi2MatchTrigger=doubleChi2; | |
390 | } | |
7771752e | 391 | } |
8d0843c6 | 392 | |
393 | track->SetMatchTrigger(matchTrigger); | |
c6ba19f7 | 394 | track->SetLoTrgNum(loTrgNum); |
8d0843c6 | 395 | track->SetChi2MatchTrigger(chi2MatchTrigger); |
7ec3b9cf | 396 | |
397 | AliMUONLocalTrigger* locTrg = static_cast<AliMUONLocalTrigger*>(triggerStore.FindLocal(loTrgNum)); | |
398 | ||
399 | if (locTrg) | |
400 | { | |
401 | track->SetLocalTrigger(locTrg->LoCircuit(), | |
402 | locTrg->LoStripX(), | |
403 | locTrg->LoStripY(), | |
404 | locTrg->LoDev(), | |
405 | locTrg->LoLpt(), | |
406 | locTrg->LoHpt()); | |
407 | } | |
408 | } | |
409 | ||
410 | trackHitPattern.GetHitPattern(trackStore,triggerStore); | |
8d0843c6 | 411 | } |
412 | ||
413 | //__________________________________________________________________________ | |
7ec3b9cf | 414 | void |
32ab62c9 | 415 | AliMUONVTrackReconstructor::EventReconstructTrigger(const AliMUONTriggerCircuit& circuit, |
7ec3b9cf | 416 | const AliMUONVTriggerStore& triggerStore, |
417 | AliMUONVTriggerTrackStore& triggerTrackStore) | |
8d0843c6 | 418 | { |
71a2d3aa | 419 | /// To make the trigger tracks from Local Trigger |
7ec3b9cf | 420 | AliDebug(1, ""); |
421 | ||
422 | AliMUONGlobalTrigger* globalTrigger = triggerStore.Global(); | |
e6b25a6e | 423 | |
7ec3b9cf | 424 | UChar_t gloTrigPat = 0; |
e6b25a6e | 425 | |
7ec3b9cf | 426 | if (globalTrigger) |
427 | { | |
428 | gloTrigPat = globalTrigger->GetGlobalResponse(); | |
e6b25a6e | 429 | } |
430 | ||
7ec3b9cf | 431 | TIter next(triggerStore.CreateIterator()); |
432 | AliMUONLocalTrigger* locTrg(0x0); | |
8d0843c6 | 433 | |
e6b25a6e | 434 | Float_t z11 = AliMUONConstants::DefaultChamberZ(10); |
435 | Float_t z21 = AliMUONConstants::DefaultChamberZ(12); | |
7cf63da6 | 436 | |
7ec3b9cf | 437 | AliMUONTriggerTrack triggerTrack; |
438 | ||
439 | while ( ( locTrg = static_cast<AliMUONLocalTrigger*>(next()) ) ) | |
440 | { | |
441 | Bool_t xTrig=kFALSE; | |
442 | Bool_t yTrig=kFALSE; | |
443 | ||
32ab62c9 | 444 | Int_t localBoardId = locTrg->LoCircuit(); |
7ec3b9cf | 445 | if ( locTrg->LoSdev()==1 && locTrg->LoDev()==0 && |
446 | locTrg->LoStripX()==0) xTrig=kFALSE; // no trigger in X | |
447 | else xTrig=kTRUE; // trigger in X | |
448 | if (locTrg->LoTrigY()==1 && | |
449 | locTrg->LoStripY()==15 ) yTrig = kFALSE; // no trigger in Y | |
450 | else yTrig = kTRUE; // trigger in Y | |
451 | ||
452 | if (xTrig && yTrig) | |
453 | { // make Trigger Track if trigger in X and Y | |
8b0baca4 | 454 | |
32ab62c9 | 455 | Float_t y11 = circuit.GetY11Pos(localBoardId, locTrg->LoStripX()); |
7ec3b9cf | 456 | // need first to convert deviation to [0-30] |
457 | // (see AliMUONLocalTriggerBoard::LocalTrigger) | |
458 | Int_t deviation = locTrg->LoDev(); | |
459 | Int_t sign = 0; | |
460 | if ( !locTrg->LoSdev() && deviation ) sign=-1; | |
461 | if ( !locTrg->LoSdev() && !deviation ) sign= 0; | |
462 | if ( locTrg->LoSdev() == 1 ) sign=+1; | |
463 | deviation *= sign; | |
464 | deviation += 15; | |
465 | Int_t stripX21 = locTrg->LoStripX()+deviation+1; | |
32ab62c9 | 466 | Float_t y21 = circuit.GetY21Pos(localBoardId, stripX21); |
467 | Float_t x11 = circuit.GetX11Pos(localBoardId, locTrg->LoStripY()); | |
7ec3b9cf | 468 | |
469 | AliDebug(1, Form(" MakeTriggerTrack %d %d %d %d %f %f %f \n",locTrg->LoCircuit(), | |
470 | locTrg->LoStripX(),locTrg->LoStripX()+locTrg->LoDev()+1,locTrg->LoStripY(),y11, y21, x11)); | |
471 | ||
472 | Float_t thetax = TMath::ATan2( x11 , z11 ); | |
473 | Float_t thetay = TMath::ATan2( (y21-y11) , (z21-z11) ); | |
474 | ||
475 | triggerTrack.SetX11(x11); | |
476 | triggerTrack.SetY11(y11); | |
477 | triggerTrack.SetThetax(thetax); | |
478 | triggerTrack.SetThetay(thetay); | |
479 | triggerTrack.SetGTPattern(gloTrigPat); | |
32ab62c9 | 480 | triggerTrack.SetLoTrgNum(localBoardId); |
7ec3b9cf | 481 | |
482 | triggerTrackStore.Add(triggerTrack); | |
483 | } // board is fired | |
e6b25a6e | 484 | } // end of loop on Local Trigger |
8d0843c6 | 485 | } |