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a9e2aefa | 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 | ||
88cb7938 | 16 | /* $Id$ */ |
a9e2aefa | 17 | |
3831f268 | 18 | //////////////////////////////////// |
a9e2aefa | 19 | // |
20 | // MUON event reconstructor in ALICE | |
21 | // | |
22 | // This class contains as data: | |
23 | // * the parameters for the event reconstruction | |
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 | // * MakeEventToBeReconstructed to build the array of hits to be reconstructed | |
30 | // * MakeSegments to build the segments | |
31 | // * MakeTracks to build the tracks | |
3831f268 | 32 | // |
33 | //////////////////////////////////// | |
a9e2aefa | 34 | |
ae17f568 | 35 | #include <stdlib.h> |
30178c30 | 36 | #include <Riostream.h> |
37 | #include <TDirectory.h> | |
38 | #include <TFile.h> | |
39 | #include <TMatrixD.h> //AZ | |
a9e2aefa | 40 | |
3831f268 | 41 | #include "AliMUONEventReconstructor.h" |
30178c30 | 42 | #include "AliMUON.h" |
29fc2c86 | 43 | #include "AliMUONConstants.h" |
30178c30 | 44 | #include "AliMUONHit.h" |
a9e2aefa | 45 | #include "AliMUONHitForRec.h" |
276c44b7 | 46 | #include "AliMUONTriggerTrack.h" |
276c44b7 | 47 | #include "AliMUONTriggerCircuit.h" |
a9e2aefa | 48 | #include "AliMUONRawCluster.h" |
276c44b7 | 49 | #include "AliMUONLocalTrigger.h" |
52c9bc11 | 50 | #include "AliMUONGlobalTrigger.h" |
3831f268 | 51 | #include "AliMUONRecoEvent.h" |
52 | #include "AliMUONSegment.h" | |
a9e2aefa | 53 | #include "AliMUONTrack.h" |
a9e2aefa | 54 | #include "AliMUONTrackHit.h" |
94de3818 | 55 | #include "AliMagF.h" |
3831f268 | 56 | #include "AliRun.h" // for gAlice |
88cb7938 | 57 | #include "AliRunLoader.h" |
58 | #include "AliLoader.h" | |
83dbc640 | 59 | #include "AliMUONTrackK.h" //AZ |
5d12ce38 | 60 | #include "AliMC.h" |
8c343c7c | 61 | #include "AliLog.h" |
29fc2c86 | 62 | #include "AliTrackReference.h" |
a9e2aefa | 63 | |
a9e2aefa | 64 | //************* Defaults parameters for reconstruction |
343146bf | 65 | const Double_t AliMUONEventReconstructor::fgkDefaultMinBendingMomentum = 3.0; |
66 | const Double_t AliMUONEventReconstructor::fgkDefaultMaxBendingMomentum = 500.0; | |
67 | const Double_t AliMUONEventReconstructor::fgkDefaultMaxChi2 = 100.0; | |
68 | const Double_t AliMUONEventReconstructor::fgkDefaultMaxSigma2Distance = 16.0; | |
69 | const Double_t AliMUONEventReconstructor::fgkDefaultBendingResolution = 0.01; | |
70 | const Double_t AliMUONEventReconstructor::fgkDefaultNonBendingResolution = 0.144; | |
71 | const Double_t AliMUONEventReconstructor::fgkDefaultChamberThicknessInX0 = 0.03; | |
a9e2aefa | 72 | // Simple magnetic field: |
73 | // Value taken from macro MUONtracking.C: 0.7 T, hence 7 kG | |
74 | // Length and Position from reco_muon.F, with opposite sign: | |
75 | // Length = ZMAGEND-ZCOIL | |
76 | // Position = (ZMAGEND+ZCOIL)/2 | |
77 | // to be ajusted differently from real magnetic field ???? | |
343146bf | 78 | const Double_t AliMUONEventReconstructor::fgkDefaultSimpleBValue = 7.0; |
79 | const Double_t AliMUONEventReconstructor::fgkDefaultSimpleBLength = 428.0; | |
80 | const Double_t AliMUONEventReconstructor::fgkDefaultSimpleBPosition = 1019.0; | |
29fc2c86 | 81 | const Int_t AliMUONEventReconstructor::fgkDefaultRecTrackRefHits = 0; |
343146bf | 82 | const Double_t AliMUONEventReconstructor::fgkDefaultEfficiency = 0.95; |
a9e2aefa | 83 | |
343146bf | 84 | const Int_t AliMUONEventReconstructor::fgkDefaultPrintLevel = -1; |
a9e2aefa | 85 | |
86 | ClassImp(AliMUONEventReconstructor) // Class implementation in ROOT context | |
87 | ||
88 | //__________________________________________________________________________ | |
52c9bc11 | 89 | AliMUONEventReconstructor::AliMUONEventReconstructor(AliLoader* loader) |
30178c30 | 90 | : TObject() |
a9e2aefa | 91 | { |
92 | // Constructor for class AliMUONEventReconstructor | |
93 | SetReconstructionParametersToDefaults(); | |
83dbc640 | 94 | fTrackMethod = 1; //AZ - tracking method (1-default, 2-Kalman) |
a9e2aefa | 95 | // Memory allocation for the TClonesArray of hits for reconstruction |
96 | // Is 10000 the right size ???? | |
97 | fHitsForRecPtr = new TClonesArray("AliMUONHitForRec", 10000); | |
98 | fNHitsForRec = 0; // really needed or GetEntriesFast sufficient ???? | |
99 | // Memory allocation for the TClonesArray's of segments in stations | |
100 | // Is 2000 the right size ???? | |
30178c30 | 101 | for (Int_t st = 0; st < fgkMaxMuonTrackingStations; st++) { |
a9e2aefa | 102 | fSegmentsPtr[st] = new TClonesArray("AliMUONSegment", 2000); |
103 | fNSegments[st] = 0; // really needed or GetEntriesFast sufficient ???? | |
104 | } | |
105 | // Memory allocation for the TClonesArray of reconstructed tracks | |
106 | // Is 10 the right size ???? | |
107 | fRecTracksPtr = new TClonesArray("AliMUONTrack", 10); | |
108 | fNRecTracks = 0; // really needed or GetEntriesFast sufficient ???? | |
276c44b7 | 109 | // trigger tracks |
110 | fRecTriggerTracksPtr = new TClonesArray("AliMUONTriggerTrack", 10); | |
111 | fNRecTriggerTracks = 0; // really needed or GetEntriesFast sufficient ???? | |
8429a5e4 | 112 | // Memory allocation for the TClonesArray of hits on reconstructed tracks |
113 | // Is 100 the right size ???? | |
b035a148 | 114 | //AZ fRecTrackHitsPtr = new TClonesArray("AliMUONTrack", 100); |
115 | fRecTrackHitsPtr = new TClonesArray("AliMUONTrackHit", 100); | |
8429a5e4 | 116 | fNRecTrackHits = 0; // really needed or GetEntriesFast sufficient ???? |
a9e2aefa | 117 | |
5b64e914 | 118 | // Sign of fSimpleBValue according to sign of Bx value at (50,50,-950). |
a6f03ddb | 119 | Float_t b[3], x[3]; |
5b64e914 | 120 | x[0] = 50.; x[1] = 50.; x[2] = -950.; |
a6f03ddb | 121 | gAlice->Field()->Field(x, b); |
065bd0e1 | 122 | fSimpleBValue = TMath::Sign(fSimpleBValue,(Double_t) b[0]); |
5b64e914 | 123 | fSimpleBPosition = TMath::Sign(fSimpleBPosition,(Double_t) x[2]); |
a6f03ddb | 124 | // See how to get fSimple(BValue, BLength, BPosition) |
125 | // automatically calculated from the actual magnetic field ???? | |
a9e2aefa | 126 | |
127 | if (fPrintLevel >= 0) { | |
a6f03ddb | 128 | cout << "AliMUONEventReconstructor constructed with defaults" << endl; Dump(); |
129 | cout << endl << "Magnetic field from root file:" << endl; | |
130 | gAlice->Field()->Dump(); | |
131 | cout << endl; | |
132 | } | |
c7ba256d | 133 | |
29fc2c86 | 134 | // Initializions for track ref. background events |
135 | fBkgTrackRefFile = 0; | |
136 | fBkgTrackRefTK = 0; | |
137 | fBkgTrackRefParticles = 0; | |
138 | fBkgTrackRefTTR = 0; | |
139 | fBkgTrackRefEventNumber = -1; | |
47a6b602 | 140 | |
c7ba256d | 141 | // Initialize to 0 pointers to RecoEvent, tree and tree file |
142 | fRecoEvent = 0; | |
143 | fEventTree = 0; | |
144 | fTreeFile = 0; | |
52c9bc11 | 145 | |
146 | // initialize loader's | |
147 | fLoader = loader; | |
148 | ||
149 | // initialize container | |
150 | fMUONData = new AliMUONData(fLoader,"MUON","MUON"); | |
151 | ||
152 | // Loading AliRun master | |
153 | AliRunLoader* runloader = fLoader->GetRunLoader(); | |
154 | if (runloader->GetAliRun() == 0x0) runloader->LoadgAlice(); | |
155 | gAlice = runloader->GetAliRun(); | |
156 | ||
a9e2aefa | 157 | return; |
158 | } | |
52c9bc11 | 159 | //__________________________________________________________________________ |
30178c30 | 160 | AliMUONEventReconstructor::AliMUONEventReconstructor (const AliMUONEventReconstructor& rhs) |
161 | : TObject(rhs) | |
9cbdf048 | 162 | { |
30178c30 | 163 | // Protected copy constructor |
164 | ||
8c343c7c | 165 | AliFatal("Not implemented."); |
9cbdf048 | 166 | } |
167 | ||
30178c30 | 168 | AliMUONEventReconstructor & |
169 | AliMUONEventReconstructor::operator=(const AliMUONEventReconstructor& rhs) | |
9cbdf048 | 170 | { |
30178c30 | 171 | // Protected assignement operator |
172 | ||
173 | if (this == &rhs) return *this; | |
174 | ||
8c343c7c | 175 | AliFatal("Not implemented."); |
30178c30 | 176 | |
177 | return *this; | |
9cbdf048 | 178 | } |
179 | ||
a9e2aefa | 180 | //__________________________________________________________________________ |
181 | AliMUONEventReconstructor::~AliMUONEventReconstructor(void) | |
182 | { | |
183 | // Destructor for class AliMUONEventReconstructor | |
c7ba256d | 184 | if (fTreeFile) { |
185 | fTreeFile->Close(); | |
186 | delete fTreeFile; | |
187 | } | |
188 | // if (fEventTree) delete fEventTree; | |
189 | if (fRecoEvent) delete fRecoEvent; | |
a9e2aefa | 190 | delete fHitsForRecPtr; // Correct destruction of everything ???? or delete [] ???? |
30178c30 | 191 | for (Int_t st = 0; st < fgkMaxMuonTrackingStations; st++) |
a9e2aefa | 192 | delete fSegmentsPtr[st]; // Correct destruction of everything ???? |
193 | return; | |
194 | } | |
195 | ||
196 | //__________________________________________________________________________ | |
197 | void AliMUONEventReconstructor::SetReconstructionParametersToDefaults(void) | |
198 | { | |
199 | // Set reconstruction parameters to default values | |
200 | // Would be much more convenient with a structure (or class) ???? | |
343146bf | 201 | fMinBendingMomentum = fgkDefaultMinBendingMomentum; |
202 | fMaxBendingMomentum = fgkDefaultMaxBendingMomentum; | |
203 | fMaxChi2 = fgkDefaultMaxChi2; | |
204 | fMaxSigma2Distance = fgkDefaultMaxSigma2Distance; | |
a9e2aefa | 205 | |
9cbdf048 | 206 | AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON"); |
a9e2aefa | 207 | // ******** Parameters for making HitsForRec |
208 | // minimum radius, | |
209 | // like in TRACKF_STAT: | |
210 | // 2 degrees for stations 1 and 2, or ch(0...) from 0 to 3; | |
211 | // 30 cm for stations 3 to 5, or ch(0...) from 4 to 9 | |
343146bf | 212 | for (Int_t ch = 0; ch < fgkMaxMuonTrackingChambers; ch++) { |
9cbdf048 | 213 | if (ch < 4) fRMin[ch] = TMath::Abs((&(pMUON->Chamber(ch)))->Z()) * |
a9e2aefa | 214 | 2.0 * TMath::Pi() / 180.0; |
215 | else fRMin[ch] = 30.0; | |
d0bfce8d | 216 | // maximum radius at 10 degrees and Z of chamber |
217 | fRMax[ch] = TMath::Abs((&(pMUON->Chamber(ch)))->Z()) * | |
218 | 10.0 * TMath::Pi() / 180.0; | |
a9e2aefa | 219 | } |
a9e2aefa | 220 | |
221 | // ******** Parameters for making segments | |
222 | // should be parametrized ???? | |
223 | // according to interval between chambers in a station ???? | |
224 | // Maximum distance in non bending plane | |
225 | // 5 * 0.22 just to remember the way it was made in TRACKF_STAT | |
226 | // SIGCUT*DYMAX(IZ) | |
30178c30 | 227 | for (Int_t st = 0; st < fgkMaxMuonTrackingStations; st++) |
a9e2aefa | 228 | fSegmentMaxDistNonBending[st] = 5. * 0.22; |
860cef81 | 229 | // Maximum distance in bending plane: |
230 | // values from TRACKF_STAT, corresponding to (J psi 20cm), | |
231 | // scaled to the real distance between chambers in a station | |
ef21c79e | 232 | fSegmentMaxDistBending[0] = TMath::Abs( 1.5 * |
233 | ((&(pMUON->Chamber(1)))->Z() - (&(pMUON->Chamber(0)))->Z()) / 20.0); | |
e516b01d | 234 | fSegmentMaxDistBending[1] = TMath::Abs( 1.5 * |
ef21c79e | 235 | ((&(pMUON->Chamber(3)))->Z() - (&(pMUON->Chamber(2)))->Z()) / 20.0); |
e516b01d | 236 | fSegmentMaxDistBending[2] = TMath::Abs( 3.0 * |
ef21c79e | 237 | ((&(pMUON->Chamber(5)))->Z() - (&(pMUON->Chamber(4)))->Z()) / 20.0); |
e516b01d | 238 | fSegmentMaxDistBending[3] = TMath::Abs( 6.0 * |
ef21c79e | 239 | ((&(pMUON->Chamber(7)))->Z() - (&(pMUON->Chamber(6)))->Z()) / 20.0); |
e516b01d | 240 | fSegmentMaxDistBending[4] = TMath::Abs( 6.0 * |
ef21c79e | 241 | ((&(pMUON->Chamber(9)))->Z() - (&(pMUON->Chamber(8)))->Z()) / 20.0); |
a9e2aefa | 242 | |
343146bf | 243 | fBendingResolution = fgkDefaultBendingResolution; |
244 | fNonBendingResolution = fgkDefaultNonBendingResolution; | |
245 | fChamberThicknessInX0 = fgkDefaultChamberThicknessInX0; | |
246 | fSimpleBValue = fgkDefaultSimpleBValue; | |
247 | fSimpleBLength = fgkDefaultSimpleBLength; | |
248 | fSimpleBPosition = fgkDefaultSimpleBPosition; | |
29fc2c86 | 249 | fRecTrackRefHits = fgkDefaultRecTrackRefHits; |
343146bf | 250 | fEfficiency = fgkDefaultEfficiency; |
251 | fPrintLevel = fgkDefaultPrintLevel; | |
a9e2aefa | 252 | return; |
253 | } | |
254 | ||
255 | //__________________________________________________________________________ | |
3831f268 | 256 | Double_t AliMUONEventReconstructor::GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const |
a9e2aefa | 257 | { |
258 | // Returns impact parameter at vertex in bending plane (cm), | |
259 | // from the signed bending momentum "BendingMomentum" in bending plane (GeV/c), | |
260 | // using simple values for dipole magnetic field. | |
065bd0e1 | 261 | // The sign of "BendingMomentum" is the sign of the charge. |
a9e2aefa | 262 | return (-0.0003 * fSimpleBValue * fSimpleBLength * fSimpleBPosition / |
263 | BendingMomentum); | |
264 | } | |
265 | ||
266 | //__________________________________________________________________________ | |
3831f268 | 267 | Double_t AliMUONEventReconstructor::GetBendingMomentumFromImpactParam(Double_t ImpactParam) const |
a9e2aefa | 268 | { |
269 | // Returns signed bending momentum in bending plane (GeV/c), | |
065bd0e1 | 270 | // the sign being the sign of the charge for particles moving forward in Z, |
a9e2aefa | 271 | // from the impact parameter "ImpactParam" at vertex in bending plane (cm), |
272 | // using simple values for dipole magnetic field. | |
a9e2aefa | 273 | return (-0.0003 * fSimpleBValue * fSimpleBLength * fSimpleBPosition / |
274 | ImpactParam); | |
275 | } | |
276 | ||
277 | //__________________________________________________________________________ | |
29fc2c86 | 278 | void AliMUONEventReconstructor::SetBkgTrackRefFile(Text_t *BkgTrackRefFileName) |
a9e2aefa | 279 | { |
29fc2c86 | 280 | // Set background file ... for track ref. hits |
a9e2aefa | 281 | // Must be called after having loaded the firts signal event |
282 | if (fPrintLevel >= 0) { | |
29fc2c86 | 283 | cout << "Enter SetBkgTrackRefFile with BkgTrackRefFileName ``" |
284 | << BkgTrackRefFileName << "''" << endl;} | |
285 | if (strlen(BkgTrackRefFileName)) { | |
286 | // BkgTrackRefFileName not empty: try to open the file | |
a9e2aefa | 287 | if (fPrintLevel >= 2) {cout << "Before File(Bkg)" << endl; gDirectory->Dump();} |
29fc2c86 | 288 | fBkgTrackRefFile = new TFile(BkgTrackRefFileName); |
a9e2aefa | 289 | if (fPrintLevel >= 2) {cout << "After File(Bkg)" << endl; gDirectory->Dump();} |
29fc2c86 | 290 | if (fBkgTrackRefFile-> IsOpen()) { |
a9e2aefa | 291 | if (fPrintLevel >= 0) { |
29fc2c86 | 292 | cout << "Background for Track ref. hits in file: ``" << BkgTrackRefFileName |
a9e2aefa | 293 | << "'' successfully opened" << endl;} |
294 | } | |
295 | else { | |
29fc2c86 | 296 | cout << "Background for Track Ref. hits in file: " << BkgTrackRefFileName << endl; |
a9e2aefa | 297 | cout << "NOT FOUND: EXIT" << endl; |
298 | exit(0); // right instruction for exit ???? | |
299 | } | |
300 | // Arrays for "particles" and "hits" | |
29fc2c86 | 301 | fBkgTrackRefParticles = new TClonesArray("TParticle", 200); |
a9e2aefa | 302 | // Event number to -1 for initialization |
29fc2c86 | 303 | fBkgTrackRefEventNumber = -1; |
a9e2aefa | 304 | // Back to the signal file: |
305 | // first signal event must have been loaded previously, | |
306 | // otherwise, Segmentation violation at the next instruction | |
307 | // How is it possible to do smething better ???? | |
308 | ((gAlice->TreeK())->GetCurrentFile())->cd(); | |
309 | if (fPrintLevel >= 2) {cout << "After cd(gAlice)" << endl; gDirectory->Dump();} | |
310 | } | |
311 | return; | |
312 | } | |
313 | ||
314 | //__________________________________________________________________________ | |
29fc2c86 | 315 | void AliMUONEventReconstructor::NextBkgTrackRefEvent(void) |
a9e2aefa | 316 | { |
29fc2c86 | 317 | // Get next event in background file for track ref. hits |
a9e2aefa | 318 | // Goes back to event number 0 when end of file is reached |
319 | char treeName[20]; | |
a9e2aefa | 320 | if (fPrintLevel >= 0) { |
29fc2c86 | 321 | cout << "Enter NextBkgTrackRefEvent" << endl;} |
a9e2aefa | 322 | // Clean previous event |
29fc2c86 | 323 | if(fBkgTrackRefTK) delete fBkgTrackRefTK; |
324 | fBkgTrackRefTK = NULL; | |
325 | if(fBkgTrackRefParticles) fBkgTrackRefParticles->Clear(); | |
326 | if(fBkgTrackRefTTR) delete fBkgTrackRefTTR; | |
327 | fBkgTrackRefTTR = NULL; | |
a9e2aefa | 328 | // Increment event number |
29fc2c86 | 329 | fBkgTrackRefEventNumber++; |
a9e2aefa | 330 | // Get access to Particles and Hits for event from background file |
331 | if (fPrintLevel >= 2) {cout << "Before cd(Bkg)" << endl; gDirectory->Dump();} | |
29fc2c86 | 332 | fBkgTrackRefFile->cd(); |
a9e2aefa | 333 | if (fPrintLevel >= 2) {cout << "After cd(Bkg)" << endl; gDirectory->Dump();} |
334 | // Particles: TreeK for event and branch "Particles" | |
29fc2c86 | 335 | sprintf(treeName, "TreeK%d", fBkgTrackRefEventNumber); |
336 | fBkgTrackRefTK = (TTree*)gDirectory->Get(treeName); | |
337 | if (!fBkgTrackRefTK) { | |
a9e2aefa | 338 | if (fPrintLevel >= 0) { |
339 | cout << "Cannot find Kine Tree for background event: " << | |
29fc2c86 | 340 | fBkgTrackRefEventNumber << endl; |
a9e2aefa | 341 | cout << "Goes back to event 0" << endl; |
342 | } | |
29fc2c86 | 343 | fBkgTrackRefEventNumber = 0; |
344 | sprintf(treeName, "TreeK%d", fBkgTrackRefEventNumber); | |
345 | fBkgTrackRefTK = (TTree*)gDirectory->Get(treeName); | |
346 | if (!fBkgTrackRefTK) { | |
347 | AliError(Form("cannot find Kine Tree for background event: %d",fBkgTrackRefEventNumber)); | |
8c343c7c | 348 | exit(0); |
a9e2aefa | 349 | } |
350 | } | |
29fc2c86 | 351 | if (fBkgTrackRefTK) |
352 | fBkgTrackRefTK->SetBranchAddress("Particles", &fBkgTrackRefParticles); | |
353 | fBkgTrackRefTK->GetEvent(0); // why event 0 ???? necessary ???? | |
a9e2aefa | 354 | // Hits: TreeH for event and branch "MUON" |
29fc2c86 | 355 | sprintf(treeName, "TreeTR%d", fBkgTrackRefEventNumber); |
356 | fBkgTrackRefTTR = (TTree*)gDirectory->Get(treeName); | |
357 | if (!fBkgTrackRefTTR) { | |
358 | AliError(Form("cannot find Hits Tree for background event: %d",fBkgTrackRefEventNumber)); | |
a9e2aefa | 359 | exit(0); |
360 | } | |
29fc2c86 | 361 | fBkgTrackRefTTR->GetEntries(); // necessary ???? |
a9e2aefa | 362 | // Back to the signal file |
363 | ((gAlice->TreeK())->GetCurrentFile())->cd(); | |
364 | if (fPrintLevel >= 2) {cout << "After cd(gAlice)" << endl; gDirectory->Dump();} | |
365 | return; | |
366 | } | |
367 | ||
368 | //__________________________________________________________________________ | |
369 | void AliMUONEventReconstructor::EventReconstruct(void) | |
370 | { | |
371 | // To reconstruct one event | |
372 | if (fPrintLevel >= 1) cout << "enter EventReconstruct" << endl; | |
373 | MakeEventToBeReconstructed(); | |
374 | MakeSegments(); | |
375 | MakeTracks(); | |
d837040f | 376 | if (fMUONData->IsTriggerTrackBranchesInTree()) |
377 | ValidateTracksWithTrigger(); | |
378 | ||
379 | // Add tracks to MUON data container | |
380 | for(Int_t i=0; i<GetNRecTracks(); i++) { | |
381 | AliMUONTrack * track = (AliMUONTrack*) GetRecTracksPtr()->At(i); | |
382 | fMUONData->AddRecTrack(*track); | |
383 | } | |
384 | ||
a9e2aefa | 385 | return; |
386 | } | |
387 | ||
276c44b7 | 388 | //__________________________________________________________________________ |
389 | void AliMUONEventReconstructor::EventReconstructTrigger(void) | |
390 | { | |
391 | // To reconstruct one event | |
392 | if (fPrintLevel >= 1) cout << "enter EventReconstructTrigger" << endl; | |
393 | MakeTriggerTracks(); | |
394 | return; | |
395 | } | |
396 | ||
a9e2aefa | 397 | //__________________________________________________________________________ |
398 | void AliMUONEventReconstructor::ResetHitsForRec(void) | |
399 | { | |
400 | // To reset the array and the number of HitsForRec, | |
401 | // and also the number of HitsForRec | |
402 | // and the index of the first HitForRec per chamber | |
403 | if (fHitsForRecPtr) fHitsForRecPtr->Clear(); | |
404 | fNHitsForRec = 0; | |
343146bf | 405 | for (Int_t ch = 0; ch < fgkMaxMuonTrackingChambers; ch++) |
a9e2aefa | 406 | fNHitsForRecPerChamber[ch] = fIndexOfFirstHitForRecPerChamber[ch] = 0; |
407 | return; | |
408 | } | |
409 | ||
410 | //__________________________________________________________________________ | |
411 | void AliMUONEventReconstructor::ResetSegments(void) | |
412 | { | |
413 | // To reset the TClonesArray of segments and the number of Segments | |
414 | // for all stations | |
30178c30 | 415 | for (Int_t st = 0; st < fgkMaxMuonTrackingStations; st++) { |
a9e2aefa | 416 | if (fSegmentsPtr[st]) fSegmentsPtr[st]->Clear(); |
417 | fNSegments[st] = 0; | |
418 | } | |
419 | return; | |
420 | } | |
421 | ||
422 | //__________________________________________________________________________ | |
423 | void AliMUONEventReconstructor::ResetTracks(void) | |
424 | { | |
425 | // To reset the TClonesArray of reconstructed tracks | |
8429a5e4 | 426 | if (fRecTracksPtr) fRecTracksPtr->Delete(); |
427 | // Delete in order that the Track destructors are called, | |
428 | // hence the space for the TClonesArray of pointers to TrackHit's is freed | |
a9e2aefa | 429 | fNRecTracks = 0; |
430 | return; | |
431 | } | |
432 | ||
276c44b7 | 433 | //__________________________________________________________________________ |
434 | void AliMUONEventReconstructor::ResetTriggerTracks(void) | |
435 | { | |
436 | // To reset the TClonesArray of reconstructed trigger tracks | |
437 | if (fRecTriggerTracksPtr) fRecTriggerTracksPtr->Delete(); | |
438 | // Delete in order that the Track destructors are called, | |
439 | // hence the space for the TClonesArray of pointers to TrackHit's is freed | |
440 | fNRecTriggerTracks = 0; | |
441 | return; | |
442 | } | |
443 | ||
8429a5e4 | 444 | //__________________________________________________________________________ |
445 | void AliMUONEventReconstructor::ResetTrackHits(void) | |
446 | { | |
447 | // To reset the TClonesArray of hits on reconstructed tracks | |
448 | if (fRecTrackHitsPtr) fRecTrackHitsPtr->Clear(); | |
449 | fNRecTrackHits = 0; | |
450 | return; | |
451 | } | |
452 | ||
a9e2aefa | 453 | //__________________________________________________________________________ |
454 | void AliMUONEventReconstructor::MakeEventToBeReconstructed(void) | |
455 | { | |
456 | // To make the list of hits to be reconstructed, | |
29fc2c86 | 457 | // either from the track ref. hits or from the raw clusters |
a9e2aefa | 458 | // according to the parameter set for the reconstructor |
e191bb57 | 459 | // TString evfoldname = AliConfig::GetDefaultEventFolderName();//to be interfaced properly |
88cb7938 | 460 | |
52c9bc11 | 461 | // AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname); |
462 | // if (rl == 0x0) | |
463 | // { | |
464 | // Error("MakeEventToBeReconstructed", | |
465 | // "Can not find Run Loader in Event Folder named %s.", | |
466 | // evfoldname.Data()); | |
467 | // return; | |
468 | // } | |
469 | // AliLoader* gime = rl->GetLoader("MUONLoader"); | |
470 | // if (gime == 0x0) | |
471 | // { | |
472 | // Error("MakeEventToBeReconstructed","Can not get MUON Loader from Run Loader."); | |
473 | // return; | |
474 | // } | |
29fc2c86 | 475 | AliRunLoader *runLoader = fLoader->GetRunLoader(); |
476 | ||
a9e2aefa | 477 | if (fPrintLevel >= 1) cout << "enter MakeEventToBeReconstructed" << endl; |
478 | ResetHitsForRec(); | |
29fc2c86 | 479 | if (fRecTrackRefHits == 1) { |
480 | // Reconstruction from track ref. hits | |
a9e2aefa | 481 | // Back to the signal file |
29fc2c86 | 482 | TTree* treeTR = runLoader->TreeTR(); |
483 | if (treeTR == 0x0) | |
484 | { | |
485 | Int_t retval = runLoader->LoadTrackRefs("READ"); | |
486 | if ( retval) | |
88cb7938 | 487 | { |
8c343c7c | 488 | AliError("Error occured while loading hits."); |
88cb7938 | 489 | return; |
490 | } | |
29fc2c86 | 491 | treeTR = runLoader->TreeTR(); |
492 | if (treeTR == 0x0) | |
88cb7938 | 493 | { |
29fc2c86 | 494 | AliError("Can not get TreeTR"); |
495 | return; | |
88cb7938 | 496 | } |
29fc2c86 | 497 | } |
498 | ||
499 | AddHitsForRecFromTrackRef(treeTR,1); | |
88cb7938 | 500 | |
a9e2aefa | 501 | // Background hits |
29fc2c86 | 502 | AddHitsForRecFromTrackRef(fBkgTrackRefTTR,0); |
a9e2aefa | 503 | // Sort HitsForRec in increasing order with respect to chamber number |
504 | SortHitsForRecWithIncreasingChamber(); | |
505 | } | |
506 | else { | |
507 | // Reconstruction from raw clusters | |
508 | // AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON"); // necessary ???? | |
509 | // Security on MUON ???? | |
510 | // TreeR assumed to be be "prepared" in calling function | |
511 | // by "MUON->GetTreeR(nev)" ???? | |
52c9bc11 | 512 | TTree *treeR = fLoader->TreeR(); |
513 | fMUONData->SetTreeAddress("RC"); | |
9cbdf048 | 514 | AddHitsForRecFromRawClusters(treeR); |
a9e2aefa | 515 | // No sorting: it is done automatically in the previous function |
516 | } | |
517 | if (fPrintLevel >= 10) { | |
518 | cout << "end of MakeEventToBeReconstructed" << endl; | |
519 | cout << "NHitsForRec: " << fNHitsForRec << endl; | |
343146bf | 520 | for (Int_t ch = 0; ch < fgkMaxMuonTrackingChambers; ch++) { |
a9e2aefa | 521 | cout << "chamber(0...): " << ch |
522 | << " NHitsForRec: " << fNHitsForRecPerChamber[ch] | |
523 | << " index(first HitForRec): " << fIndexOfFirstHitForRecPerChamber[ch] | |
524 | << endl; | |
525 | for (Int_t hit = fIndexOfFirstHitForRecPerChamber[ch]; | |
526 | hit < fIndexOfFirstHitForRecPerChamber[ch] + fNHitsForRecPerChamber[ch]; | |
527 | hit++) { | |
528 | cout << "HitForRec index(0...): " << hit << endl; | |
529 | ((*fHitsForRecPtr)[hit])->Dump(); | |
530 | } | |
531 | } | |
532 | } | |
533 | return; | |
534 | } | |
535 | ||
536 | //__________________________________________________________________________ | |
29fc2c86 | 537 | void AliMUONEventReconstructor::AddHitsForRecFromTrackRef(TTree *TTR, Int_t signal) |
a9e2aefa | 538 | { |
539 | // To add to the list of hits for reconstruction | |
29fc2c86 | 540 | // the signal hits from a track reference tree TreeTR. |
541 | TClonesArray *listOfTrackRefs = NULL; | |
542 | AliTrackReference *trackRef; | |
543 | ||
544 | Int_t track = 0; | |
a9e2aefa | 545 | if (fPrintLevel >= 2) |
29fc2c86 | 546 | cout << "enter AddHitsForRecFromTrackRef with TTR: " << TTR << endl; |
547 | if (TTR == NULL) return; | |
548 | ||
549 | listOfTrackRefs = CleanTrackRefs(TTR); | |
1391e633 | 550 | |
29fc2c86 | 551 | Int_t ntracks = listOfTrackRefs->GetEntriesFast(); |
a9e2aefa | 552 | |
a9e2aefa | 553 | if (fPrintLevel >= 2) |
554 | cout << "ntracks: " << ntracks << endl; | |
29fc2c86 | 555 | |
556 | for (Int_t index = 0; index < ntracks; index++) { | |
557 | trackRef = (AliTrackReference*) listOfTrackRefs->At(index); | |
558 | track = trackRef->GetTrack(); | |
559 | ||
560 | NewHitForRecFromTrackRef(trackRef,track,signal); | |
561 | } // end of track ref. | |
562 | ||
563 | listOfTrackRefs->Delete(); | |
564 | delete listOfTrackRefs; | |
a9e2aefa | 565 | return; |
566 | } | |
567 | ||
29fc2c86 | 568 | |
a9e2aefa | 569 | //__________________________________________________________________________ |
29fc2c86 | 570 | AliMUONHitForRec* AliMUONEventReconstructor::NewHitForRecFromTrackRef(AliTrackReference* Hit, Int_t TrackNumber, Int_t Signal) |
a9e2aefa | 571 | { |
29fc2c86 | 572 | // To make a new hit for reconstruction from a track ref. hit pointed to by "Hit", |
573 | // with the track numbered "TrackNumber", | |
a9e2aefa | 574 | // either from signal ("Signal" = 1) or background ("Signal" = 0) event. |
575 | // Selects hits in tracking (not trigger) chambers. | |
576 | // Takes into account the efficiency (fEfficiency) | |
577 | // and the smearing from resolution (fBendingResolution and fNonBendingResolution). | |
578 | // Adds a condition on the radius between RMin and RMax | |
579 | // to better simulate the real chambers. | |
580 | // Returns the pointer to the new hit for reconstruction, | |
581 | // or NULL in case of inefficiency or non tracking chamber or bad radius. | |
582 | // No condition on at most 20 cm from a muon from a resonance | |
583 | // like in Fortran TRACKF_STAT. | |
584 | AliMUONHitForRec* hitForRec; | |
585 | Double_t bendCoor, nonBendCoor, radius; | |
29fc2c86 | 586 | Int_t chamber = AliMUONConstants::ChamberNumber(Hit->Z()); // chamber(0...) |
587 | if (chamber < 0) return NULL; | |
a9e2aefa | 588 | // only in tracking chambers (fChamber starts at 1) |
343146bf | 589 | if (chamber >= fgkMaxMuonTrackingChambers) return NULL; |
a9e2aefa | 590 | // only if hit is efficient (keep track for checking ????) |
591 | if (gRandom->Rndm() > fEfficiency) return NULL; | |
592 | // only if radius between RMin and RMax | |
94de3818 | 593 | bendCoor = Hit->Y(); |
594 | nonBendCoor = Hit->X(); | |
a9e2aefa | 595 | radius = TMath::Sqrt((bendCoor * bendCoor) + (nonBendCoor * nonBendCoor)); |
d0bfce8d | 596 | // This cut is not needed with a realistic chamber geometry !!!! |
597 | // if ((radius < fRMin[chamber]) || (radius > fRMax[chamber])) return NULL; | |
29fc2c86 | 598 | // new AliMUONHitForRec from track ref. hit and increment number of AliMUONHitForRec's |
a9e2aefa | 599 | hitForRec = new ((*fHitsForRecPtr)[fNHitsForRec]) AliMUONHitForRec(Hit); |
600 | fNHitsForRec++; | |
601 | // add smearing from resolution | |
602 | hitForRec->SetBendingCoor(bendCoor + gRandom->Gaus(0., fBendingResolution)); | |
603 | hitForRec->SetNonBendingCoor(nonBendCoor | |
604 | + gRandom->Gaus(0., fNonBendingResolution)); | |
d0bfce8d | 605 | // // !!!! without smearing |
606 | // hitForRec->SetBendingCoor(bendCoor); | |
607 | // hitForRec->SetNonBendingCoor(nonBendCoor); | |
a9e2aefa | 608 | // more information into HitForRec |
609 | // resolution: angular effect to be added here ???? | |
610 | hitForRec->SetBendingReso2(fBendingResolution * fBendingResolution); | |
611 | hitForRec->SetNonBendingReso2(fNonBendingResolution * fNonBendingResolution); | |
29fc2c86 | 612 | // track ref. info |
613 | hitForRec->SetTTRTrack(TrackNumber); | |
614 | hitForRec->SetTrackRefSignal(Signal); | |
a9e2aefa | 615 | if (fPrintLevel >= 10) { |
29fc2c86 | 616 | cout << "track: " << TrackNumber << endl; |
a9e2aefa | 617 | Hit->Dump(); |
618 | cout << "AliMUONHitForRec number (1...): " << fNHitsForRec << endl; | |
619 | hitForRec->Dump();} | |
620 | return hitForRec; | |
621 | } | |
29fc2c86 | 622 | //__________________________________________________________________________ |
623 | TClonesArray* AliMUONEventReconstructor::CleanTrackRefs(TTree *treeTR) | |
624 | { | |
625 | // Make hits from track ref.. | |
626 | // Re-calculate hits parameters because two AliTrackReferences are recorded for | |
627 | // each chamber (one when particle is entering + one when particle is leaving | |
628 | // the sensitive volume) | |
629 | ||
630 | AliTrackReference *trackReference; | |
631 | Float_t x1, y1, z1, pX1, pY1, pZ1; | |
632 | Float_t x2, y2, z2, pX2, pY2, pZ2; | |
633 | Int_t track1, track2; | |
634 | Int_t nRec = 0; | |
635 | Float_t maxGasGap = 1.; // cm | |
636 | Int_t iHit1 = 0; | |
637 | Int_t iHitMin = 0; | |
638 | ||
639 | AliTrackReference *trackReferenceNew = new AliTrackReference(); | |
640 | ||
641 | TClonesArray* trackRefs = new TClonesArray("AliTrackReference", 10); | |
642 | TClonesArray* cleanTrackRefs = new TClonesArray("AliTrackReference", 10); | |
643 | ||
644 | if (treeTR == NULL) return NULL; | |
645 | TBranch* branch = treeTR->GetBranch("MUON"); | |
646 | if (branch == NULL) return NULL; | |
647 | branch->SetAddress(&trackRefs); | |
648 | ||
649 | Int_t nTrack = (Int_t)treeTR->GetEntries(); | |
650 | for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) { | |
651 | treeTR->GetEntry(iTrack); | |
652 | iHitMin = 0; | |
653 | iHit1 = 0; | |
654 | while (iHit1 < trackRefs->GetEntries()) { | |
655 | trackReference = (AliTrackReference*)trackRefs->At(iHit1); | |
656 | x1 = trackReference->X(); | |
657 | y1 = trackReference->Y(); | |
658 | z1 = trackReference->Z(); | |
659 | pX1 = trackReference->Px(); | |
660 | pY1 = trackReference->Py(); | |
661 | pZ1 = trackReference->Pz(); | |
662 | track1 = trackReference->GetTrack(); | |
663 | nRec = 1; | |
664 | iHitMin = iHit1+1; | |
665 | for (Int_t iHit2 = iHit1+1; iHit2 < trackRefs->GetEntries(); iHit2++) { | |
666 | trackReference = (AliTrackReference*)trackRefs->At(iHit2); | |
667 | x2 = trackReference->X(); | |
668 | y2 = trackReference->Y(); | |
669 | z2 = trackReference->Z(); | |
670 | pX2 = trackReference->Px(); | |
671 | pY2 = trackReference->Py(); | |
672 | pZ2 = trackReference->Pz(); | |
673 | track2 = trackReference->GetTrack(); | |
674 | if (track2 == track1 && TMath::Abs(z2-z1) < maxGasGap ) { | |
675 | nRec++; | |
676 | x1 += x2; | |
677 | y1 += y2; | |
678 | z1 += z2; | |
679 | pX1 += pX2; | |
680 | pY1 += pY2; | |
681 | pZ1 += pZ2; | |
682 | iHitMin = iHit2+1; | |
683 | } | |
684 | ||
685 | } // for iHit2 | |
686 | x1 /= (Float_t)nRec; | |
687 | y1 /= (Float_t)nRec; | |
688 | z1 /= (Float_t)nRec; | |
689 | pX1 /= (Float_t)nRec; | |
690 | pY1 /= (Float_t)nRec; | |
691 | pZ1 /= (Float_t)nRec; | |
692 | trackReferenceNew->SetPosition(x1,y1,z1); | |
693 | trackReferenceNew->SetMomentum(pX1,pY1,pZ1); | |
694 | trackReferenceNew->SetTrack(track1); | |
695 | {new ((*cleanTrackRefs)[cleanTrackRefs->GetEntriesFast()]) AliTrackReference(*trackReferenceNew);} | |
696 | iHit1 = iHitMin; | |
697 | } // while iHit1 | |
698 | } // for track | |
699 | ||
700 | trackRefs->Delete(); | |
701 | delete trackRefs; | |
702 | delete trackReferenceNew; | |
703 | return cleanTrackRefs; | |
704 | ||
705 | } | |
a9e2aefa | 706 | //__________________________________________________________________________ |
707 | void AliMUONEventReconstructor::SortHitsForRecWithIncreasingChamber() | |
708 | { | |
709 | // Sort HitsForRec's in increasing order with respect to chamber number. | |
710 | // Uses the function "Compare". | |
711 | // Update the information for HitsForRec per chamber too. | |
712 | Int_t ch, nhits, prevch; | |
713 | fHitsForRecPtr->Sort(); | |
343146bf | 714 | for (ch = 0; ch < fgkMaxMuonTrackingChambers; ch++) { |
a9e2aefa | 715 | fNHitsForRecPerChamber[ch] = 0; |
716 | fIndexOfFirstHitForRecPerChamber[ch] = 0; | |
717 | } | |
718 | prevch = 0; // previous chamber | |
719 | nhits = 0; // number of hits in current chamber | |
720 | // Loop over HitsForRec | |
721 | for (Int_t hit = 0; hit < fNHitsForRec; hit++) { | |
722 | // chamber number (0...) | |
723 | ch = ((AliMUONHitForRec*) ((*fHitsForRecPtr)[hit]))->GetChamberNumber(); | |
724 | // increment number of hits in current chamber | |
725 | (fNHitsForRecPerChamber[ch])++; | |
726 | // update index of first HitForRec in current chamber | |
727 | // if chamber number different from previous one | |
728 | if (ch != prevch) { | |
729 | fIndexOfFirstHitForRecPerChamber[ch] = hit; | |
730 | prevch = ch; | |
731 | } | |
732 | } | |
733 | return; | |
734 | } | |
735 | ||
736 | // //__________________________________________________________________________ | |
737 | // void AliMUONEventReconstructor::AddHitsForRecFromCathodeCorrelations(TTree* TC) | |
738 | // { | |
739 | // // OLD VERSION WHEN ONE ONE WAS USING SO CALLED CATHODE CORRELATIONS | |
740 | // // To add to the list of hits for reconstruction | |
741 | // // the (cathode correlated) raw clusters | |
742 | // // No condition added, like in Fortran TRACKF_STAT, | |
743 | // // on the radius between RMin and RMax. | |
744 | // AliMUONHitForRec *hitForRec; | |
745 | // if (fPrintLevel >= 1) cout << "enter AddHitsForRecFromCathodeCorrelations" << endl; | |
746 | // AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON"); // necessary ???? | |
747 | // // Security on MUON ???? | |
748 | // // Loop over tracking chambers | |
343146bf | 749 | // for (Int_t ch = 0; ch < fgkMaxMuonTrackingChambers; ch++) { |
a9e2aefa | 750 | // // number of HitsForRec to 0 for the chamber |
751 | // fNHitsForRecPerChamber[ch] = 0; | |
752 | // // index of first HitForRec for the chamber | |
753 | // if (ch == 0) fIndexOfFirstHitForRecPerChamber[ch] = 0; | |
754 | // else fIndexOfFirstHitForRecPerChamber[ch] = fNHitsForRec; | |
755 | // TClonesArray *reconst_hits = MUON->ReconstHitsAddress(ch); | |
756 | // MUON->ResetReconstHits(); | |
757 | // TC->GetEvent(); | |
758 | // Int_t ncor = (Int_t)reconst_hits->GetEntries(); | |
759 | // // Loop over (cathode correlated) raw clusters | |
760 | // for (Int_t cor = 0; cor < ncor; cor++) { | |
761 | // AliMUONReconstHit * mCor = | |
762 | // (AliMUONReconstHit*) reconst_hits->UncheckedAt(cor); | |
763 | // // new AliMUONHitForRec from (cathode correlated) raw cluster | |
764 | // // and increment number of AliMUONHitForRec's (total and in chamber) | |
765 | // hitForRec = new ((*fHitsForRecPtr)[fNHitsForRec]) AliMUONHitForRec(mCor); | |
766 | // fNHitsForRec++; | |
767 | // (fNHitsForRecPerChamber[ch])++; | |
768 | // // more information into HitForRec | |
769 | // hitForRec->SetChamberNumber(ch); | |
770 | // hitForRec->SetHitNumber(cor); | |
29fc2c86 | 771 | // // Z coordinate of the chamber (cm) with sign opposite to TRACKREF sign |
a9e2aefa | 772 | // // could (should) be more exact from chamber geometry ???? |
773 | // hitForRec->SetZ(-(&(MUON->Chamber(ch)))->Z()); | |
774 | // if (fPrintLevel >= 10) { | |
775 | // cout << "chamber (0...): " << ch << | |
776 | // " cathcorrel (0...): " << cor << endl; | |
777 | // mCor->Dump(); | |
778 | // cout << "AliMUONHitForRec number (1...): " << fNHitsForRec << endl; | |
779 | // hitForRec->Dump();} | |
780 | // } // end of cluster loop | |
781 | // } // end of chamber loop | |
782 | // return; | |
783 | // } | |
784 | ||
785 | //__________________________________________________________________________ | |
786 | void AliMUONEventReconstructor::AddHitsForRecFromRawClusters(TTree* TR) | |
787 | { | |
788 | // To add to the list of hits for reconstruction all the raw clusters | |
789 | // No condition added, like in Fortran TRACKF_STAT, | |
790 | // on the radius between RMin and RMax. | |
791 | AliMUONHitForRec *hitForRec; | |
792 | AliMUONRawCluster *clus; | |
f69d51b5 | 793 | Int_t iclus, nclus, nTRentries; |
a9e2aefa | 794 | TClonesArray *rawclusters; |
795 | if (fPrintLevel >= 1) cout << "enter AddHitsForRecFromRawClusters" << endl; | |
88cb7938 | 796 | |
e191bb57 | 797 | // TString evfoldname = AliConfig::GetDefaultEventFolderName();//to be interfaced properly |
52c9bc11 | 798 | // AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname); |
799 | // if (rl == 0x0) | |
800 | // { | |
801 | // Error("MakeEventToBeReconstructed", | |
802 | // "Can not find Run Loader in Event Folder named %s.", | |
803 | // evfoldname.Data()); | |
804 | // return; | |
805 | // } | |
806 | // AliLoader* gime = rl->GetLoader("MUONLoader"); | |
807 | // if (gime == 0x0) | |
808 | // { | |
809 | // Error("MakeEventToBeReconstructed","Can not get MUON Loader from Run Loader."); | |
810 | // return; | |
811 | // } | |
812 | // // Loading AliRun master | |
813 | // rl->LoadgAlice(); | |
814 | // gAlice = rl->GetAliRun(); | |
88cb7938 | 815 | |
816 | // Loading MUON subsystem | |
52c9bc11 | 817 | // AliMUON * pMUON = (AliMUON *) gAlice->GetDetector("MUON"); |
88cb7938 | 818 | |
f69d51b5 | 819 | nTRentries = Int_t(TR->GetEntries()); |
820 | if (nTRentries != 1) { | |
8c343c7c | 821 | AliError(Form("nTRentries = %d not equal to 1 ",nTRentries)); |
f69d51b5 | 822 | exit(0); |
823 | } | |
52c9bc11 | 824 | fLoader->TreeR()->GetEvent(0); // only one entry |
825 | ||
a9e2aefa | 826 | // Loop over tracking chambers |
343146bf | 827 | for (Int_t ch = 0; ch < fgkMaxMuonTrackingChambers; ch++) { |
a9e2aefa | 828 | // number of HitsForRec to 0 for the chamber |
829 | fNHitsForRecPerChamber[ch] = 0; | |
830 | // index of first HitForRec for the chamber | |
831 | if (ch == 0) fIndexOfFirstHitForRecPerChamber[ch] = 0; | |
832 | else fIndexOfFirstHitForRecPerChamber[ch] = fNHitsForRec; | |
52c9bc11 | 833 | rawclusters =fMUONData->RawClusters(ch); |
f69d51b5 | 834 | // pMUON->ResetRawClusters(); |
835 | // TR->GetEvent((Int_t) (TR->GetEntries()) - 1); // to be checked ???? | |
a9e2aefa | 836 | nclus = (Int_t) (rawclusters->GetEntries()); |
837 | // Loop over (cathode correlated) raw clusters | |
838 | for (iclus = 0; iclus < nclus; iclus++) { | |
839 | clus = (AliMUONRawCluster*) rawclusters->UncheckedAt(iclus); | |
840 | // new AliMUONHitForRec from raw cluster | |
841 | // and increment number of AliMUONHitForRec's (total and in chamber) | |
842 | hitForRec = new ((*fHitsForRecPtr)[fNHitsForRec]) AliMUONHitForRec(clus); | |
843 | fNHitsForRec++; | |
844 | (fNHitsForRecPerChamber[ch])++; | |
845 | // more information into HitForRec | |
846 | // resolution: info should be already in raw cluster and taken from it ???? | |
847 | hitForRec->SetBendingReso2(fBendingResolution * fBendingResolution); | |
848 | hitForRec->SetNonBendingReso2(fNonBendingResolution * fNonBendingResolution); | |
849 | // original raw cluster | |
850 | hitForRec->SetChamberNumber(ch); | |
851 | hitForRec->SetHitNumber(iclus); | |
ba5b68db | 852 | // Z coordinate of the raw cluster (cm) |
ba12c242 | 853 | hitForRec->SetZ(clus->GetZ(0)); |
a9e2aefa | 854 | if (fPrintLevel >= 10) { |
855 | cout << "chamber (0...): " << ch << | |
856 | " raw cluster (0...): " << iclus << endl; | |
857 | clus->Dump(); | |
858 | cout << "AliMUONHitForRec number (1...): " << fNHitsForRec << endl; | |
859 | hitForRec->Dump();} | |
860 | } // end of cluster loop | |
861 | } // end of chamber loop | |
83dbc640 | 862 | SortHitsForRecWithIncreasingChamber(); //AZ |
a9e2aefa | 863 | return; |
864 | } | |
865 | ||
866 | //__________________________________________________________________________ | |
867 | void AliMUONEventReconstructor::MakeSegments(void) | |
868 | { | |
869 | // To make the list of segments in all stations, | |
870 | // from the list of hits to be reconstructed | |
871 | if (fPrintLevel >= 1) cout << "enter MakeSegments" << endl; | |
872 | ResetSegments(); | |
873 | // Loop over stations | |
83dbc640 | 874 | Int_t nb = (fTrackMethod == 2) ? 3 : 0; //AZ |
30178c30 | 875 | //AZ for (Int_t st = 0; st < fgkMaxMuonTrackingStations; st++) |
876 | for (Int_t st = nb; st < fgkMaxMuonTrackingStations; st++) //AZ | |
a9e2aefa | 877 | MakeSegmentsPerStation(st); |
878 | if (fPrintLevel >= 10) { | |
879 | cout << "end of MakeSegments" << endl; | |
30178c30 | 880 | for (Int_t st = 0; st < fgkMaxMuonTrackingStations; st++) { |
a9e2aefa | 881 | cout << "station(0...): " << st |
882 | << " Segments: " << fNSegments[st] | |
883 | << endl; | |
884 | for (Int_t seg = 0; | |
885 | seg < fNSegments[st]; | |
886 | seg++) { | |
887 | cout << "Segment index(0...): " << seg << endl; | |
888 | ((*fSegmentsPtr[st])[seg])->Dump(); | |
889 | } | |
890 | } | |
891 | } | |
892 | return; | |
893 | } | |
894 | ||
895 | //__________________________________________________________________________ | |
896 | void AliMUONEventReconstructor::MakeSegmentsPerStation(Int_t Station) | |
897 | { | |
898 | // To make the list of segments in station number "Station" (0...) | |
899 | // from the list of hits to be reconstructed. | |
900 | // Updates "fNSegments"[Station]. | |
901 | // Segments in stations 4 and 5 are sorted | |
902 | // according to increasing absolute value of "impact parameter" | |
903 | AliMUONHitForRec *hit1Ptr, *hit2Ptr; | |
904 | AliMUONSegment *segment; | |
905 | Bool_t last2st; | |
906 | Double_t bendingSlope, distBend, distNonBend, extBendCoor, extNonBendCoor, | |
d0bfce8d | 907 | impactParam = 0., maxImpactParam = 0., minImpactParam = 0.; // =0 to avoid compilation warnings. |
a9e2aefa | 908 | if (fPrintLevel >= 1) |
909 | cout << "enter MakeSegmentsPerStation (0...) " << Station << endl; | |
910 | // first and second chambers (0...) in the station | |
911 | Int_t ch1 = 2 * Station; | |
912 | Int_t ch2 = ch1 + 1; | |
913 | // variable true for stations downstream of the dipole: | |
914 | // Station(0..4) equal to 3 or 4 | |
915 | if ((Station == 3) || (Station == 4)) { | |
916 | last2st = kTRUE; | |
917 | // maximum impact parameter (cm) according to fMinBendingMomentum... | |
918 | maxImpactParam = | |
919 | TMath::Abs(GetImpactParamFromBendingMomentum(fMinBendingMomentum)); | |
d0bfce8d | 920 | // minimum impact parameter (cm) according to fMaxBendingMomentum... |
921 | minImpactParam = | |
922 | TMath::Abs(GetImpactParamFromBendingMomentum(fMaxBendingMomentum)); | |
a9e2aefa | 923 | } |
924 | else last2st = kFALSE; | |
925 | // extrapolation factor from Z of first chamber to Z of second chamber | |
926 | // dZ to be changed to take into account fine structure of chambers ???? | |
e516b01d | 927 | Double_t extrapFact; |
a9e2aefa | 928 | // index for current segment |
929 | Int_t segmentIndex = 0; | |
930 | // Loop over HitsForRec in the first chamber of the station | |
931 | for (Int_t hit1 = fIndexOfFirstHitForRecPerChamber[ch1]; | |
932 | hit1 < fIndexOfFirstHitForRecPerChamber[ch1] + fNHitsForRecPerChamber[ch1]; | |
933 | hit1++) { | |
934 | // pointer to the HitForRec | |
935 | hit1Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit1]); | |
936 | // extrapolation, | |
937 | // on the straight line joining the HitForRec to the vertex (0,0,0), | |
938 | // to the Z of the second chamber of the station | |
a9e2aefa | 939 | // Loop over HitsForRec in the second chamber of the station |
940 | for (Int_t hit2 = fIndexOfFirstHitForRecPerChamber[ch2]; | |
941 | hit2 < fIndexOfFirstHitForRecPerChamber[ch2] + fNHitsForRecPerChamber[ch2]; | |
942 | hit2++) { | |
943 | // pointer to the HitForRec | |
944 | hit2Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit2]); | |
945 | // absolute values of distances, in bending and non bending planes, | |
946 | // between the HitForRec in the second chamber | |
947 | // and the previous extrapolation | |
e516b01d | 948 | extrapFact = hit2Ptr->GetZ()/ hit1Ptr->GetZ(); |
949 | extBendCoor = extrapFact * hit1Ptr->GetBendingCoor(); | |
950 | extNonBendCoor = extrapFact * hit1Ptr->GetNonBendingCoor(); | |
a9e2aefa | 951 | distBend = TMath::Abs(hit2Ptr->GetBendingCoor() - extBendCoor); |
952 | distNonBend = TMath::Abs(hit2Ptr->GetNonBendingCoor() - extNonBendCoor); | |
953 | if (last2st) { | |
954 | // bending slope | |
955 | bendingSlope = (hit1Ptr->GetBendingCoor() - hit2Ptr->GetBendingCoor()) / | |
956 | (hit1Ptr->GetZ() - hit2Ptr->GetZ()); | |
957 | // absolute value of impact parameter | |
958 | impactParam = | |
31817925 | 959 | TMath::Abs(hit1Ptr->GetBendingCoor() - hit1Ptr->GetZ() * bendingSlope); |
a9e2aefa | 960 | } |
961 | // check for distances not too large, | |
962 | // and impact parameter not too big if stations downstream of the dipole. | |
963 | // Conditions "distBend" and "impactParam" correlated for these stations ???? | |
964 | if ((distBend < fSegmentMaxDistBending[Station]) && | |
965 | (distNonBend < fSegmentMaxDistNonBending[Station]) && | |
d0bfce8d | 966 | (!last2st || (impactParam < maxImpactParam)) && |
967 | (!last2st || (impactParam > minImpactParam))) { | |
a9e2aefa | 968 | // make new segment |
969 | segment = new ((*fSegmentsPtr[Station])[segmentIndex]) | |
970 | AliMUONSegment(hit1Ptr, hit2Ptr); | |
971 | // update "link" to this segment from the hit in the first chamber | |
972 | if (hit1Ptr->GetNSegments() == 0) | |
973 | hit1Ptr->SetIndexOfFirstSegment(segmentIndex); | |
974 | hit1Ptr->SetNSegments(hit1Ptr->GetNSegments() + 1); | |
975 | if (fPrintLevel >= 10) { | |
976 | cout << "segmentIndex(0...): " << segmentIndex | |
977 | << " distBend: " << distBend | |
978 | << " distNonBend: " << distNonBend | |
979 | << endl; | |
980 | segment->Dump(); | |
981 | cout << "HitForRec in first chamber" << endl; | |
982 | hit1Ptr->Dump(); | |
983 | cout << "HitForRec in second chamber" << endl; | |
984 | hit2Ptr->Dump(); | |
985 | }; | |
986 | // increment index for current segment | |
987 | segmentIndex++; | |
988 | } | |
989 | } //for (Int_t hit2 | |
990 | } // for (Int_t hit1... | |
991 | fNSegments[Station] = segmentIndex; | |
992 | // Sorting according to "impact parameter" if station(1..5) 4 or 5, | |
993 | // i.e. Station(0..4) 3 or 4, using the function "Compare". | |
994 | // After this sorting, it is impossible to use | |
995 | // the "fNSegments" and "fIndexOfFirstSegment" | |
996 | // of the HitForRec in the first chamber to explore all segments formed with it. | |
997 | // Is this sorting really needed ???? | |
998 | if ((Station == 3) || (Station == 4)) (fSegmentsPtr[Station])->Sort(); | |
999 | if (fPrintLevel >= 1) cout << "Station: " << Station << " NSegments: " | |
1000 | << fNSegments[Station] << endl; | |
1001 | return; | |
1002 | } | |
1003 | ||
1004 | //__________________________________________________________________________ | |
1005 | void AliMUONEventReconstructor::MakeTracks(void) | |
1006 | { | |
1007 | // To make the tracks, | |
1008 | // from the list of segments and points in all stations | |
1009 | if (fPrintLevel >= 1) cout << "enter MakeTracks" << endl; | |
8429a5e4 | 1010 | // The order may be important for the following Reset's |
a9e2aefa | 1011 | ResetTracks(); |
8429a5e4 | 1012 | ResetTrackHits(); |
83dbc640 | 1013 | if (fTrackMethod == 2) { //AZ - Kalman filter |
1014 | MakeTrackCandidatesK(); | |
b035a148 | 1015 | if (fRecTracksPtr->GetEntriesFast() == 0) return; |
83dbc640 | 1016 | // Follow tracks in stations(1..) 3, 2 and 1 |
1017 | FollowTracksK(); | |
1018 | // Remove double tracks | |
1019 | RemoveDoubleTracksK(); | |
1020 | // Propagate tracks to the vertex thru absorber | |
1021 | GoToVertex(); | |
b035a148 | 1022 | // Fill AliMUONTrack data members |
1023 | FillMUONTrack(); | |
d837040f | 1024 | } else { |
83dbc640 | 1025 | // Look for candidates from at least 3 aligned points in stations(1..) 4 and 5 |
1026 | MakeTrackCandidates(); | |
1027 | // Follow tracks in stations(1..) 3, 2 and 1 | |
1028 | FollowTracks(); | |
1029 | // Remove double tracks | |
1030 | RemoveDoubleTracks(); | |
d837040f | 1031 | UpdateTrackParamAtHit(); |
b8dc484b | 1032 | UpdateHitForRecAtHit(); |
52c9bc11 | 1033 | } |
a9e2aefa | 1034 | return; |
1035 | } | |
1036 | ||
276c44b7 | 1037 | //__________________________________________________________________________ |
d837040f | 1038 | void AliMUONEventReconstructor::ValidateTracksWithTrigger(void) |
1039 | { | |
7e6d7e07 | 1040 | // Try to match track from tracking system with trigger track |
d837040f | 1041 | AliMUONTrack *track; |
24ab3324 | 1042 | TClonesArray *recTriggerTracks; |
1043 | ||
1044 | fMUONData->ResetRecTriggerTracks(); | |
1045 | fMUONData->SetTreeAddress("RL"); | |
1046 | fMUONData->GetRecTriggerTracks(); | |
1047 | recTriggerTracks = fMUONData->RecTriggerTracks(); | |
e8765288 | 1048 | |
d837040f | 1049 | track = (AliMUONTrack*) fRecTracksPtr->First(); |
1050 | while (track) { | |
1051 | track->MatchTriggerTrack(recTriggerTracks); | |
1052 | track = (AliMUONTrack*) fRecTracksPtr->After(track); | |
e8765288 | 1053 | } |
24ab3324 | 1054 | |
d837040f | 1055 | } |
1056 | ||
1057 | //__________________________________________________________________________ | |
1058 | Bool_t AliMUONEventReconstructor::MakeTriggerTracks(void) | |
276c44b7 | 1059 | { |
1060 | // To make the trigger tracks from Local Trigger | |
1061 | if (fPrintLevel >= 1) cout << "enter MakeTriggerTracks" << endl; | |
52c9bc11 | 1062 | // ResetTriggerTracks(); |
276c44b7 | 1063 | |
1064 | Int_t nTRentries; | |
52c9bc11 | 1065 | Long_t gloTrigPat; |
276c44b7 | 1066 | TClonesArray *localTrigger; |
9131b4fe | 1067 | TClonesArray *globalTrigger; |
276c44b7 | 1068 | AliMUONLocalTrigger *locTrg; |
9131b4fe | 1069 | AliMUONGlobalTrigger *gloTrg; |
276c44b7 | 1070 | AliMUONTriggerCircuit *circuit; |
52c9bc11 | 1071 | AliMUONTriggerTrack *recTriggerTrack = 0; |
d837040f | 1072 | |
30178c30 | 1073 | TTree* treeR = fLoader->TreeR(); |
276c44b7 | 1074 | |
276c44b7 | 1075 | // Loading MUON subsystem |
1076 | AliMUON * pMUON = (AliMUON *) gAlice->GetDetector("MUON"); | |
1077 | ||
30178c30 | 1078 | nTRentries = Int_t(treeR->GetEntries()); |
d837040f | 1079 | |
30178c30 | 1080 | treeR->GetEvent(0); // only one entry |
d837040f | 1081 | |
1082 | if (!(fMUONData->IsTriggerBranchesInTree())) { | |
8c343c7c | 1083 | AliWarning(Form("Trigger information is not avalaible, nTRentries = %d not equal to 1",nTRentries)); |
d837040f | 1084 | return kFALSE; |
276c44b7 | 1085 | } |
276c44b7 | 1086 | |
ce3e25a8 | 1087 | fMUONData->SetTreeAddress("TC"); |
52c9bc11 | 1088 | fMUONData->GetTrigger(); |
9131b4fe | 1089 | |
52c9bc11 | 1090 | // global trigger for trigger pattern |
9131b4fe | 1091 | gloTrigPat = 0; |
52c9bc11 | 1092 | globalTrigger = fMUONData->GlobalTrigger(); |
9131b4fe | 1093 | gloTrg = (AliMUONGlobalTrigger*)globalTrigger->UncheckedAt(0); |
8efb0686 | 1094 | if (gloTrg) { |
1095 | if (gloTrg->SinglePlusLpt()) gloTrigPat|= 0x1; | |
1096 | if (gloTrg->SinglePlusHpt()) gloTrigPat|= 0x2; | |
1097 | if (gloTrg->SinglePlusApt()) gloTrigPat|= 0x4; | |
1098 | ||
1099 | if (gloTrg->SingleMinusLpt()) gloTrigPat|= 0x8; | |
1100 | if (gloTrg->SingleMinusHpt()) gloTrigPat|= 0x10; | |
1101 | if (gloTrg->SingleMinusApt()) gloTrigPat|= 0x20; | |
1102 | ||
1103 | if (gloTrg->SingleUndefLpt()) gloTrigPat|= 0x40; | |
1104 | if (gloTrg->SingleUndefHpt()) gloTrigPat|= 0x80; | |
1105 | if (gloTrg->SingleUndefApt()) gloTrigPat|= 0x100; | |
1106 | ||
1107 | if (gloTrg->PairUnlikeLpt()) gloTrigPat|= 0x200; | |
1108 | if (gloTrg->PairUnlikeHpt()) gloTrigPat|= 0x400; | |
1109 | if (gloTrg->PairUnlikeApt()) gloTrigPat|= 0x800; | |
1110 | ||
1111 | if (gloTrg->PairLikeLpt()) gloTrigPat|= 0x1000; | |
1112 | if (gloTrg->PairLikeHpt()) gloTrigPat|= 0x2000; | |
1113 | if (gloTrg->PairLikeApt()) gloTrigPat|= 0x4000; | |
1114 | } | |
9131b4fe | 1115 | |
52c9bc11 | 1116 | |
1117 | ||
1118 | // local trigger for tracking | |
1119 | localTrigger = fMUONData->LocalTrigger(); | |
276c44b7 | 1120 | Int_t nlocals = (Int_t) (localTrigger->GetEntries()); |
1121 | Float_t z11 = ( &(pMUON->Chamber(10)) )->Z(); | |
1122 | Float_t z21 = ( &(pMUON->Chamber(12)) )->Z(); | |
1123 | ||
1124 | for (Int_t i=0; i<nlocals; i++) { // loop on Local Trigger | |
52c9bc11 | 1125 | locTrg = (AliMUONLocalTrigger*)localTrigger->UncheckedAt(i); |
1126 | circuit = &(pMUON->TriggerCircuit(locTrg->LoCircuit())); | |
1127 | Float_t y11 = circuit->GetY11Pos(locTrg->LoStripX()); | |
aeb4f510 | 1128 | Int_t stripX21 = locTrg->LoStripX()+locTrg->LoDev()+1; |
1129 | Float_t y21 = circuit->GetY21Pos(stripX21); | |
52c9bc11 | 1130 | Float_t x11 = circuit->GetX11Pos(locTrg->LoStripY()); |
1131 | Float_t thetax = TMath::ATan2( x11 , z11 ); | |
1132 | Float_t thetay = TMath::ATan2( (y21-y11) , (z21-z11) ); | |
1133 | ||
1134 | recTriggerTrack = new AliMUONTriggerTrack(x11,y11,thetax,thetay,gloTrigPat,this); | |
1135 | // since static statement does not work, set gloTrigPat for each track | |
1136 | ||
1137 | // fNRecTriggerTracks++; | |
1138 | fMUONData->AddRecTriggerTrack(*recTriggerTrack); | |
276c44b7 | 1139 | } // end of loop on Local Trigger |
d837040f | 1140 | return kTRUE; |
276c44b7 | 1141 | } |
1142 | ||
a9e2aefa | 1143 | //__________________________________________________________________________ |
1144 | Int_t AliMUONEventReconstructor::MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment) | |
1145 | { | |
1146 | // To make track candidates with two segments in stations(1..) 4 and 5, | |
1147 | // the first segment being pointed to by "BegSegment". | |
1148 | // Returns the number of such track candidates. | |
1149 | Int_t endStation, iEndSegment, nbCan2Seg; | |
e516b01d | 1150 | AliMUONSegment *endSegment; |
1151 | AliMUONSegment *extrapSegment = NULL; | |
a9e2aefa | 1152 | AliMUONTrack *recTrack; |
1153 | Double_t mcsFactor; | |
1154 | if (fPrintLevel >= 1) cout << "enter MakeTrackCandidatesWithTwoSegments" << endl; | |
1155 | // Station for the end segment | |
1156 | endStation = 7 - (BegSegment->GetHitForRec1())->GetChamberNumber() / 2; | |
1157 | // multiple scattering factor corresponding to one chamber | |
1158 | mcsFactor = 0.0136 / | |
1159 | GetBendingMomentumFromImpactParam(BegSegment->GetBendingImpact()); | |
1160 | mcsFactor = fChamberThicknessInX0 * mcsFactor * mcsFactor; | |
1161 | // linear extrapolation to end station | |
a9e2aefa | 1162 | // number of candidates with 2 segments to 0 |
1163 | nbCan2Seg = 0; | |
1164 | // Loop over segments in the end station | |
1165 | for (iEndSegment = 0; iEndSegment < fNSegments[endStation]; iEndSegment++) { | |
1166 | // pointer to segment | |
1167 | endSegment = (AliMUONSegment*) ((*fSegmentsPtr[endStation])[iEndSegment]); | |
1168 | // test compatibility between current segment and "extrapSegment" | |
04b5ea16 | 1169 | // 4 because 4 quantities in chi2 |
e516b01d | 1170 | extrapSegment = |
1171 | BegSegment->CreateSegmentFromLinearExtrapToStation(endSegment->GetZ(), mcsFactor); | |
a9e2aefa | 1172 | if ((endSegment-> |
1173 | NormalizedChi2WithSegment(extrapSegment, | |
1174 | fMaxSigma2Distance)) <= 4.0) { | |
1175 | // both segments compatible: | |
1176 | // make track candidate from "begSegment" and "endSegment" | |
1177 | if (fPrintLevel >= 2) | |
1178 | cout << "TrackCandidate with Segment " << iEndSegment << | |
1179 | " in Station(0..) " << endStation << endl; | |
1180 | // flag for both segments in one track: | |
1181 | // to be done in track constructor ???? | |
1182 | BegSegment->SetInTrack(kTRUE); | |
1183 | endSegment->SetInTrack(kTRUE); | |
1184 | recTrack = new ((*fRecTracksPtr)[fNRecTracks]) | |
1185 | AliMUONTrack(BegSegment, endSegment, this); | |
1186 | fNRecTracks++; | |
1187 | if (fPrintLevel >= 10) recTrack->RecursiveDump(); | |
1188 | // increment number of track candidates with 2 segments | |
1189 | nbCan2Seg++; | |
1190 | } | |
1191 | } // for (iEndSegment = 0;... | |
1192 | delete extrapSegment; // should not delete HitForRec's it points to !!!! | |
1193 | return nbCan2Seg; | |
1194 | } | |
1195 | ||
1196 | //__________________________________________________________________________ | |
1197 | Int_t AliMUONEventReconstructor::MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment) | |
1198 | { | |
1199 | // To make track candidates with one segment and one point | |
1200 | // in stations(1..) 4 and 5, | |
1201 | // the segment being pointed to by "BegSegment". | |
1202 | Int_t ch, ch1, ch2, endStation, iHit, iHitMax, iHitMin, nbCan1Seg1Hit; | |
e516b01d | 1203 | AliMUONHitForRec *extrapHitForRec= NULL; |
1204 | AliMUONHitForRec *hit; | |
a9e2aefa | 1205 | AliMUONTrack *recTrack; |
1206 | Double_t mcsFactor; | |
1207 | if (fPrintLevel >= 1) | |
1208 | cout << "enter MakeTrackCandidatesWithOneSegmentAndOnePoint" << endl; | |
1209 | // station for the end point | |
1210 | endStation = 7 - (BegSegment->GetHitForRec1())->GetChamberNumber() / 2; | |
1211 | // multiple scattering factor corresponding to one chamber | |
1212 | mcsFactor = 0.0136 / | |
1213 | GetBendingMomentumFromImpactParam(BegSegment->GetBendingImpact()); | |
1214 | mcsFactor = fChamberThicknessInX0 * mcsFactor * mcsFactor; | |
1215 | // first and second chambers(0..) in the end station | |
1216 | ch1 = 2 * endStation; | |
1217 | ch2 = ch1 + 1; | |
1218 | // number of candidates to 0 | |
1219 | nbCan1Seg1Hit = 0; | |
1220 | // Loop over chambers of the end station | |
1221 | for (ch = ch2; ch >= ch1; ch--) { | |
a9e2aefa | 1222 | // limits for the hit index in the loop |
1223 | iHitMin = fIndexOfFirstHitForRecPerChamber[ch]; | |
1224 | iHitMax = iHitMin + fNHitsForRecPerChamber[ch]; | |
1225 | // Loop over HitForRec's in the chamber | |
1226 | for (iHit = iHitMin; iHit < iHitMax; iHit++) { | |
1227 | // pointer to HitForRec | |
1228 | hit = (AliMUONHitForRec*) ((*fHitsForRecPtr)[iHit]); | |
1229 | // test compatibility between current HitForRec and "extrapHitForRec" | |
04b5ea16 | 1230 | // 2 because 2 quantities in chi2 |
e516b01d | 1231 | // linear extrapolation to chamber |
1232 | extrapHitForRec = | |
1233 | BegSegment->CreateHitForRecFromLinearExtrapToChamber( hit->GetZ(), mcsFactor); | |
a9e2aefa | 1234 | if ((hit-> |
1235 | NormalizedChi2WithHitForRec(extrapHitForRec, | |
1236 | fMaxSigma2Distance)) <= 2.0) { | |
1237 | // both HitForRec's compatible: | |
1238 | // make track candidate from begSegment and current HitForRec | |
1239 | if (fPrintLevel >= 2) | |
1240 | cout << "TrackCandidate with HitForRec " << iHit << | |
1241 | " in Chamber(0..) " << ch << endl; | |
1242 | // flag for beginning segments in one track: | |
1243 | // to be done in track constructor ???? | |
1244 | BegSegment->SetInTrack(kTRUE); | |
1245 | recTrack = new ((*fRecTracksPtr)[fNRecTracks]) | |
1246 | AliMUONTrack(BegSegment, hit, this); | |
1247 | // the right place to eliminate "double counting" ???? how ???? | |
1248 | fNRecTracks++; | |
1249 | if (fPrintLevel >= 10) recTrack->RecursiveDump(); | |
1250 | // increment number of track candidates | |
1251 | nbCan1Seg1Hit++; | |
1252 | } | |
1253 | } // for (iHit = iHitMin;... | |
1254 | delete extrapHitForRec; | |
305197bd | 1255 | extrapHitForRec = NULL; |
a9e2aefa | 1256 | } // for (ch = ch2;... |
1257 | return nbCan1Seg1Hit; | |
1258 | } | |
1259 | ||
1260 | //__________________________________________________________________________ | |
1261 | void AliMUONEventReconstructor::MakeTrackCandidates(void) | |
1262 | { | |
1263 | // To make track candidates | |
1264 | // with at least 3 aligned points in stations(1..) 4 and 5 | |
1265 | // (two Segment's or one Segment and one HitForRec) | |
1266 | Int_t begStation, iBegSegment, nbCan1Seg1Hit, nbCan2Seg; | |
1267 | AliMUONSegment *begSegment; | |
1268 | if (fPrintLevel >= 1) cout << "enter MakeTrackCandidates" << endl; | |
1269 | // Loop over stations(1..) 5 and 4 for the beginning segment | |
1270 | for (begStation = 4; begStation > 2; begStation--) { | |
1271 | // Loop over segments in the beginning station | |
1272 | for (iBegSegment = 0; iBegSegment < fNSegments[begStation]; iBegSegment++) { | |
1273 | // pointer to segment | |
1274 | begSegment = (AliMUONSegment*) ((*fSegmentsPtr[begStation])[iBegSegment]); | |
1275 | if (fPrintLevel >= 2) | |
1276 | cout << "look for TrackCandidate's with Segment " << iBegSegment << | |
1277 | " in Station(0..) " << begStation << endl; | |
1278 | // Look for track candidates with two segments, | |
1279 | // "begSegment" and all compatible segments in other station. | |
1280 | // Only for beginning station(1..) 5 | |
1281 | // because candidates with 2 segments have to looked for only once. | |
1282 | if (begStation == 4) | |
1283 | nbCan2Seg = MakeTrackCandidatesWithTwoSegments(begSegment); | |
956019b6 | 1284 | // Look for track candidates with one segment and one point, |
a9e2aefa | 1285 | // "begSegment" and all compatible HitForRec's in other station. |
1286 | // Only if "begSegment" does not belong already to a track candidate. | |
1287 | // Is that a too strong condition ???? | |
1288 | if (!(begSegment->GetInTrack())) | |
1289 | nbCan1Seg1Hit = MakeTrackCandidatesWithOneSegmentAndOnePoint(begSegment); | |
1290 | } // for (iBegSegment = 0;... | |
1291 | } // for (begStation = 4;... | |
1292 | return; | |
1293 | } | |
1294 | ||
1295 | //__________________________________________________________________________ | |
1296 | void AliMUONEventReconstructor::FollowTracks(void) | |
1297 | { | |
1298 | // Follow tracks in stations(1..) 3, 2 and 1 | |
04b5ea16 | 1299 | // too long: should be made more modular !!!! |
e516b01d | 1300 | AliMUONHitForRec *bestHit, *extrapHit, *hit; |
1301 | AliMUONSegment *bestSegment, *extrapSegment, *segment; | |
04b5ea16 | 1302 | AliMUONTrack *track, *nextTrack; |
1303 | AliMUONTrackParam *trackParam1, trackParam[2], trackParamVertex; | |
ecfa008b | 1304 | // -1 to avoid compilation warnings |
1305 | Int_t ch = -1, chInStation, chBestHit = -1, iHit, iSegment, station, trackIndex; | |
04b5ea16 | 1306 | Double_t bestChi2, chi2, dZ1, dZ2, dZ3, maxSigma2Distance, mcsFactor; |
d0bfce8d | 1307 | Double_t bendingMomentum, chi2Norm = 0.; |
9cbdf048 | 1308 | AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON"); // necessary ???? |
04b5ea16 | 1309 | // local maxSigma2Distance, for easy increase in testing |
1310 | maxSigma2Distance = fMaxSigma2Distance; | |
a9e2aefa | 1311 | if (fPrintLevel >= 2) |
1312 | cout << "enter FollowTracks" << endl; | |
1313 | // Loop over track candidates | |
04b5ea16 | 1314 | track = (AliMUONTrack*) fRecTracksPtr->First(); |
1315 | trackIndex = -1; | |
1316 | while (track) { | |
1317 | // Follow function for each track candidate ???? | |
1318 | trackIndex++; | |
1319 | nextTrack = (AliMUONTrack*) fRecTracksPtr->After(track); // prepare next track | |
a9e2aefa | 1320 | if (fPrintLevel >= 2) |
1321 | cout << "FollowTracks: track candidate(0..): " << trackIndex << endl; | |
956019b6 | 1322 | // Fit track candidate |
1323 | track->SetFitMCS(0); // without multiple Coulomb scattering | |
1324 | track->SetFitNParam(3); // with 3 parameters (X = Y = 0) | |
1325 | track->SetFitStart(0); // from parameters at vertex | |
1326 | track->Fit(); | |
a9e2aefa | 1327 | if (fPrintLevel >= 10) { |
1328 | cout << "FollowTracks: track candidate(0..): " << trackIndex | |
956019b6 | 1329 | << " after fit in stations(0..) 3 and 4" << endl; |
a9e2aefa | 1330 | track->RecursiveDump(); |
1331 | } | |
1332 | // Loop over stations(1..) 3, 2 and 1 | |
04b5ea16 | 1333 | // something SPECIAL for stations 2 and 1 for majority 3 coincidence ???? |
1334 | // otherwise: majority coincidence 2 !!!! | |
a9e2aefa | 1335 | for (station = 2; station >= 0; station--) { |
1336 | // Track parameters at first track hit (smallest Z) | |
1337 | trackParam1 = ((AliMUONTrackHit*) | |
1338 | (track->GetTrackHitsPtr()->First()))->GetTrackParam(); | |
1339 | // extrapolation to station | |
1340 | trackParam1->ExtrapToStation(station, trackParam); | |
79e1e601 | 1341 | extrapSegment = new AliMUONSegment(); // empty segment |
a9e2aefa | 1342 | // multiple scattering factor corresponding to one chamber |
1343 | // and momentum in bending plane (not total) | |
1344 | mcsFactor = 0.0136 * trackParam1->GetInverseBendingMomentum(); | |
1345 | mcsFactor = fChamberThicknessInX0 * mcsFactor * mcsFactor; | |
1346 | // Z difference from previous station | |
9cbdf048 | 1347 | dZ1 = (&(pMUON->Chamber(2 * station)))->Z() - |
1348 | (&(pMUON->Chamber(2 * station + 2)))->Z(); | |
a9e2aefa | 1349 | // Z difference between the two previous stations |
9cbdf048 | 1350 | dZ2 = (&(pMUON->Chamber(2 * station + 2)))->Z() - |
1351 | (&(pMUON->Chamber(2 * station + 4)))->Z(); | |
04b5ea16 | 1352 | // Z difference between the two chambers in the previous station |
1353 | dZ3 = (&(pMUON->Chamber(2 * station)))->Z() - | |
1354 | (&(pMUON->Chamber(2 * station + 1)))->Z(); | |
1355 | extrapSegment->SetBendingCoorReso2(fBendingResolution * fBendingResolution); | |
1356 | extrapSegment-> | |
1357 | SetNonBendingCoorReso2(fNonBendingResolution * fNonBendingResolution); | |
1358 | extrapSegment->UpdateFromStationTrackParam | |
1359 | (trackParam, mcsFactor, dZ1, dZ2, dZ3, station, | |
1360 | trackParam1->GetInverseBendingMomentum()); | |
a9e2aefa | 1361 | bestChi2 = 5.0; |
1362 | bestSegment = NULL; | |
1363 | if (fPrintLevel >= 10) { | |
1364 | cout << "FollowTracks: track candidate(0..): " << trackIndex | |
1365 | << " Look for segment in station(0..): " << station << endl; | |
1366 | } | |
1367 | // Loop over segments in station | |
1368 | for (iSegment = 0; iSegment < fNSegments[station]; iSegment++) { | |
1369 | // Look for best compatible Segment in station | |
1370 | // should consider all possibilities ???? | |
1371 | // multiple scattering ???? | |
1372 | // separation in 2 functions: Segment and HitForRec ???? | |
1373 | segment = (AliMUONSegment*) ((*fSegmentsPtr[station])[iSegment]); | |
d0bfce8d | 1374 | // correction of corrected segment (fBendingCoor and fNonBendingCoor) |
1375 | // according to real Z value of "segment" and slopes of "extrapSegment" | |
e516b01d | 1376 | (&(trackParam[0]))->ExtrapToZ(segment->GetZ()); |
1377 | (&(trackParam[1]))->ExtrapToZ(segment->GetZ()); | |
1378 | extrapSegment->SetBendingCoor((&(trackParam[0]))->GetBendingCoor()); | |
1379 | extrapSegment->SetNonBendingCoor((&(trackParam[0]))->GetNonBendingCoor()); | |
1380 | extrapSegment->SetBendingSlope((&(trackParam[0]))->GetBendingSlope()); | |
1381 | extrapSegment->SetNonBendingSlope((&(trackParam[0]))->GetNonBendingSlope()); | |
d0bfce8d | 1382 | chi2 = segment-> |
e516b01d | 1383 | NormalizedChi2WithSegment(extrapSegment, maxSigma2Distance); |
a9e2aefa | 1384 | if (chi2 < bestChi2) { |
1385 | // update best Chi2 and Segment if better found | |
1386 | bestSegment = segment; | |
1387 | bestChi2 = chi2; | |
1388 | } | |
1389 | } | |
1390 | if (bestSegment) { | |
1391 | // best segment found: add it to track candidate | |
e516b01d | 1392 | (&(trackParam[0]))->ExtrapToZ(bestSegment->GetZ()); |
1393 | (&(trackParam[1]))->ExtrapToZ(bestSegment->GetZ()); | |
a9e2aefa | 1394 | track->AddSegment(bestSegment); |
1395 | // set track parameters at these two TrakHit's | |
1396 | track->SetTrackParamAtHit(track->GetNTrackHits() - 2, &(trackParam[0])); | |
1397 | track->SetTrackParamAtHit(track->GetNTrackHits() - 1, &(trackParam[1])); | |
1398 | if (fPrintLevel >= 10) { | |
1399 | cout << "FollowTracks: track candidate(0..): " << trackIndex | |
1400 | << " Added segment in station(0..): " << station << endl; | |
1401 | track->RecursiveDump(); | |
1402 | } | |
1403 | } | |
1404 | else { | |
1405 | // No best segment found: | |
1406 | // Look for best compatible HitForRec in station: | |
1407 | // should consider all possibilities ???? | |
1408 | // multiple scattering ???? do about like for extrapSegment !!!! | |
79e1e601 | 1409 | extrapHit = new AliMUONHitForRec(); // empty hit |
a9e2aefa | 1410 | bestChi2 = 3.0; |
1411 | bestHit = NULL; | |
1412 | if (fPrintLevel >= 10) { | |
1413 | cout << "FollowTracks: track candidate(0..): " << trackIndex | |
1414 | << " Segment not found, look for hit in station(0..): " << station | |
1415 | << endl; | |
1416 | } | |
1417 | // Loop over chambers of the station | |
d82671a0 | 1418 | for (chInStation = 0; chInStation < 2; chInStation++) { |
956019b6 | 1419 | ch = 2 * station + chInStation; |
a9e2aefa | 1420 | for (iHit = fIndexOfFirstHitForRecPerChamber[ch]; |
1421 | iHit < fIndexOfFirstHitForRecPerChamber[ch] + | |
1422 | fNHitsForRecPerChamber[ch]; | |
1423 | iHit++) { | |
1424 | hit = (AliMUONHitForRec*) ((*fHitsForRecPtr)[iHit]); | |
e516b01d | 1425 | // coordinates of extrapolated hit |
1426 | (&(trackParam[chInStation]))->ExtrapToZ(hit->GetZ()); | |
1427 | extrapHit-> | |
1428 | SetBendingCoor((&(trackParam[chInStation]))->GetBendingCoor()); | |
1429 | extrapHit-> | |
1430 | SetNonBendingCoor((&(trackParam[chInStation]))->GetNonBendingCoor()); | |
1431 | // resolutions from "extrapSegment" | |
1432 | extrapHit->SetBendingReso2(extrapSegment->GetBendingCoorReso2()); | |
1433 | extrapHit->SetNonBendingReso2(extrapSegment->GetNonBendingCoorReso2()); | |
1434 | // Loop over hits in the chamber | |
a9e2aefa | 1435 | // condition for hit not already in segment ???? |
1436 | chi2 = hit->NormalizedChi2WithHitForRec(extrapHit, maxSigma2Distance); | |
1437 | if (chi2 < bestChi2) { | |
1438 | // update best Chi2 and HitForRec if better found | |
1439 | bestHit = hit; | |
1440 | bestChi2 = chi2; | |
d82671a0 | 1441 | chBestHit = chInStation; |
a9e2aefa | 1442 | } |
1443 | } | |
1444 | } | |
1445 | if (bestHit) { | |
1446 | // best hit found: add it to track candidate | |
e516b01d | 1447 | (&(trackParam[chBestHit]))->ExtrapToZ(bestHit->GetZ()); |
a9e2aefa | 1448 | track->AddHitForRec(bestHit); |
956019b6 | 1449 | // set track parameters at this TrackHit |
a9e2aefa | 1450 | track->SetTrackParamAtHit(track->GetNTrackHits() - 1, |
1451 | &(trackParam[chBestHit])); | |
1452 | if (fPrintLevel >= 10) { | |
1453 | cout << "FollowTracks: track candidate(0..): " << trackIndex | |
1454 | << " Added hit in station(0..): " << station << endl; | |
1455 | track->RecursiveDump(); | |
1456 | } | |
1457 | } | |
1458 | else { | |
8429a5e4 | 1459 | // Remove current track candidate |
1460 | // and corresponding TrackHit's, ... | |
1461 | track->Remove(); | |
04b5ea16 | 1462 | delete extrapSegment; |
d0bfce8d | 1463 | delete extrapHit; |
a9e2aefa | 1464 | break; // stop the search for this candidate: |
1465 | // exit from the loop over station | |
1466 | } | |
d0bfce8d | 1467 | delete extrapHit; |
a9e2aefa | 1468 | } |
04b5ea16 | 1469 | delete extrapSegment; |
a9e2aefa | 1470 | // Sort track hits according to increasing Z |
1471 | track->GetTrackHitsPtr()->Sort(); | |
1472 | // Update track parameters at first track hit (smallest Z) | |
1473 | trackParam1 = ((AliMUONTrackHit*) | |
1474 | (track->GetTrackHitsPtr()->First()))->GetTrackParam(); | |
d0bfce8d | 1475 | bendingMomentum = 0.; |
1476 | if (TMath::Abs(trackParam1->GetInverseBendingMomentum()) > 0.) | |
1477 | bendingMomentum = TMath::Abs(1/(trackParam1->GetInverseBendingMomentum())); | |
1478 | // Track removed if bendingMomentum not in window [min, max] | |
1479 | if ((bendingMomentum < fMinBendingMomentum) || (bendingMomentum > fMaxBendingMomentum)) { | |
1480 | track->Remove(); | |
1481 | break; // stop the search for this candidate: | |
1482 | // exit from the loop over station | |
1483 | } | |
956019b6 | 1484 | // Track fit |
04b5ea16 | 1485 | // with multiple Coulomb scattering if all stations |
1486 | if (station == 0) track->SetFitMCS(1); | |
956019b6 | 1487 | // without multiple Coulomb scattering if not all stations |
04b5ea16 | 1488 | else track->SetFitMCS(0); |
956019b6 | 1489 | track->SetFitNParam(5); // with 5 parameters (momentum and position) |
1490 | track->SetFitStart(1); // from parameters at first hit | |
1491 | track->Fit(); | |
d0bfce8d | 1492 | Double_t numberOfDegFree = (2.0 * track->GetNTrackHits() - 5); |
1493 | if (numberOfDegFree > 0) { | |
1494 | chi2Norm = track->GetFitFMin() / numberOfDegFree; | |
1495 | } else { | |
1496 | chi2Norm = 1.e10; | |
1497 | } | |
1498 | // Track removed if normalized chi2 too high | |
1499 | if (chi2Norm > fMaxChi2) { | |
1500 | track->Remove(); | |
1501 | break; // stop the search for this candidate: | |
1502 | // exit from the loop over station | |
1503 | } | |
a9e2aefa | 1504 | if (fPrintLevel >= 10) { |
1505 | cout << "FollowTracks: track candidate(0..): " << trackIndex | |
1506 | << " after fit from station(0..): " << station << " to 4" << endl; | |
1507 | track->RecursiveDump(); | |
1508 | } | |
04b5ea16 | 1509 | // Track extrapolation to the vertex through the absorber (Branson) |
956019b6 | 1510 | // after going through the first station |
04b5ea16 | 1511 | if (station == 0) { |
1512 | trackParamVertex = *trackParam1; | |
889a0215 | 1513 | (&trackParamVertex)->ExtrapToVertex(0.,0.,0.); |
04b5ea16 | 1514 | track->SetTrackParamAtVertex(&trackParamVertex); |
6ae236ee | 1515 | if (fPrintLevel >= 1) { |
1516 | cout << "FollowTracks: track candidate(0..): " << trackIndex | |
1517 | << " after extrapolation to vertex" << endl; | |
1518 | track->RecursiveDump(); | |
1519 | } | |
04b5ea16 | 1520 | } |
a9e2aefa | 1521 | } // for (station = 2;... |
04b5ea16 | 1522 | // go really to next track |
1523 | track = nextTrack; | |
1524 | } // while (track) | |
1525 | // Compression of track array (necessary after Remove ????) | |
1526 | fRecTracksPtr->Compress(); | |
1527 | return; | |
1528 | } | |
1529 | ||
1530 | //__________________________________________________________________________ | |
8429a5e4 | 1531 | void AliMUONEventReconstructor::RemoveDoubleTracks(void) |
1532 | { | |
1533 | // To remove double tracks. | |
1534 | // Tracks are considered identical | |
1535 | // if they have at least half of their hits in common. | |
1536 | // Among two identical tracks, one keeps the track with the larger number of hits | |
1537 | // or, if these numbers are equal, the track with the minimum Chi2. | |
1538 | AliMUONTrack *track1, *track2, *trackToRemove; | |
1539 | Bool_t identicalTracks; | |
1540 | Int_t hitsInCommon, nHits1, nHits2; | |
1541 | identicalTracks = kTRUE; | |
1542 | while (identicalTracks) { | |
1543 | identicalTracks = kFALSE; | |
1544 | // Loop over first track of the pair | |
1545 | track1 = (AliMUONTrack*) fRecTracksPtr->First(); | |
1546 | while (track1 && (!identicalTracks)) { | |
1547 | nHits1 = track1->GetNTrackHits(); | |
1548 | // Loop over second track of the pair | |
1549 | track2 = (AliMUONTrack*) fRecTracksPtr->After(track1); | |
1550 | while (track2 && (!identicalTracks)) { | |
1551 | nHits2 = track2->GetNTrackHits(); | |
1552 | // number of hits in common between two tracks | |
1553 | hitsInCommon = track1->HitsInCommon(track2); | |
1554 | // check for identical tracks | |
1555 | if ((4 * hitsInCommon) >= (nHits1 + nHits2)) { | |
1556 | identicalTracks = kTRUE; | |
1557 | // decide which track to remove | |
1558 | if (nHits1 > nHits2) trackToRemove = track2; | |
1559 | else if (nHits1 < nHits2) trackToRemove = track1; | |
1560 | else if ((track1->GetFitFMin()) < (track2->GetFitFMin())) | |
1561 | trackToRemove = track2; | |
1562 | else trackToRemove = track1; | |
1563 | // remove it | |
1564 | trackToRemove->Remove(); | |
1565 | } | |
1566 | track2 = (AliMUONTrack*) fRecTracksPtr->After(track2); | |
1567 | } // track2 | |
1568 | track1 = (AliMUONTrack*) fRecTracksPtr->After(track1); | |
1569 | } // track1 | |
1570 | } | |
1571 | return; | |
1572 | } | |
1573 | ||
d837040f | 1574 | //__________________________________________________________________________ |
1575 | void AliMUONEventReconstructor::UpdateTrackParamAtHit() | |
1576 | { | |
1577 | // Set track parameters after track fitting. Fill fTrackParamAtHit of AliMUONTrack's | |
1578 | AliMUONTrack *track; | |
1579 | AliMUONTrackHit *trackHit; | |
1580 | AliMUONTrackParam *trackParam; | |
1581 | track = (AliMUONTrack*) fRecTracksPtr->First(); | |
1582 | while (track) { | |
1583 | trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->First(); | |
1584 | while (trackHit) { | |
1585 | trackParam = trackHit->GetTrackParam(); | |
1586 | track->AddTrackParamAtHit(trackParam); | |
1587 | trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->After(trackHit); | |
1588 | } // trackHit | |
1589 | track = (AliMUONTrack*) fRecTracksPtr->After(track); | |
1590 | } // track | |
1591 | return; | |
1592 | } | |
1593 | ||
b8dc484b | 1594 | //__________________________________________________________________________ |
1595 | void AliMUONEventReconstructor::UpdateHitForRecAtHit() | |
1596 | { | |
1597 | // Set cluster parameterss after track fitting. Fill fHitForRecAtHit of AliMUONTrack's | |
1598 | AliMUONTrack *track; | |
1599 | AliMUONTrackHit *trackHit; | |
1600 | AliMUONHitForRec *hitForRec; | |
1601 | track = (AliMUONTrack*) fRecTracksPtr->First(); | |
1602 | while (track) { | |
1603 | trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->First(); | |
1604 | while (trackHit) { | |
1605 | hitForRec = trackHit->GetHitForRecPtr(); | |
1606 | track->AddHitForRecAtHit(hitForRec); | |
1607 | trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->After(trackHit); | |
1608 | } // trackHit | |
1609 | track = (AliMUONTrack*) fRecTracksPtr->After(track); | |
1610 | } // track | |
1611 | return; | |
1612 | } | |
1613 | ||
b035a148 | 1614 | //__________________________________________________________________________ |
1615 | void AliMUONEventReconstructor::FillMUONTrack() | |
1616 | { | |
1617 | // Set track parameters at hits for Kalman track. Fill fTrackParamAtHit of AliMUONTrack's | |
1618 | AliMUONTrackK *track; | |
1619 | track = (AliMUONTrackK*) fRecTracksPtr->First(); | |
1620 | while (track) { | |
1621 | track->FillMUONTrack(); | |
1622 | track = (AliMUONTrackK*) fRecTracksPtr->After(track); | |
1623 | } | |
1624 | return; | |
1625 | } | |
1626 | ||
8429a5e4 | 1627 | //__________________________________________________________________________ |
04b5ea16 | 1628 | void AliMUONEventReconstructor::EventDump(void) |
1629 | { | |
1630 | // Dump reconstructed event (track parameters at vertex and at first hit), | |
1631 | // and the particle parameters | |
1632 | ||
1633 | AliMUONTrack *track; | |
1634 | AliMUONTrackParam *trackParam, *trackParam1; | |
04b5ea16 | 1635 | Double_t bendingSlope, nonBendingSlope, pYZ; |
1636 | Double_t pX, pY, pZ, x, y, z, c; | |
1637 | Int_t np, trackIndex, nTrackHits; | |
1638 | ||
1639 | if (fPrintLevel >= 1) cout << "****** enter EventDump ******" << endl; | |
1640 | if (fPrintLevel >= 1) { | |
1641 | cout << " Number of Reconstructed tracks :" << fNRecTracks << endl; | |
1642 | } | |
1643 | fRecTracksPtr->Compress(); // for simple loop without "Next" since no hole | |
1644 | // Loop over reconstructed tracks | |
1645 | for (trackIndex = 0; trackIndex < fNRecTracks; trackIndex++) { | |
83dbc640 | 1646 | if (fTrackMethod != 1) continue; //AZ - skip the rest for now |
04b5ea16 | 1647 | if (fPrintLevel >= 1) |
1648 | cout << " track number: " << trackIndex << endl; | |
1649 | // function for each track for modularity ???? | |
1650 | track = (AliMUONTrack*) ((*fRecTracksPtr)[trackIndex]); | |
1651 | nTrackHits = track->GetNTrackHits(); | |
1652 | if (fPrintLevel >= 1) | |
1653 | cout << " number of track hits: " << nTrackHits << endl; | |
1654 | // track parameters at Vertex | |
1655 | trackParam = track->GetTrackParamAtVertex(); | |
1656 | x = trackParam->GetNonBendingCoor(); | |
1657 | y = trackParam->GetBendingCoor(); | |
1658 | z = trackParam->GetZ(); | |
1659 | bendingSlope = trackParam->GetBendingSlope(); | |
1660 | nonBendingSlope = trackParam->GetNonBendingSlope(); | |
1661 | pYZ = 1/TMath::Abs(trackParam->GetInverseBendingMomentum()); | |
1662 | pZ = pYZ/TMath::Sqrt(1+bendingSlope*bendingSlope); | |
1663 | pX = pZ * nonBendingSlope; | |
1664 | pY = pZ * bendingSlope; | |
1665 | c = TMath::Sign(1.0, trackParam->GetInverseBendingMomentum()); | |
1666 | if (fPrintLevel >= 1) | |
1667 | printf(" track parameters at Vertex z= %f: X= %f Y= %f pX= %f pY= %f pZ= %f c= %f\n", | |
1668 | z, x, y, pX, pY, pZ, c); | |
1669 | ||
1670 | // track parameters at first hit | |
1671 | trackParam1 = ((AliMUONTrackHit*) | |
1672 | (track->GetTrackHitsPtr()->First()))->GetTrackParam(); | |
1673 | x = trackParam1->GetNonBendingCoor(); | |
1674 | y = trackParam1->GetBendingCoor(); | |
1675 | z = trackParam1->GetZ(); | |
1676 | bendingSlope = trackParam1->GetBendingSlope(); | |
1677 | nonBendingSlope = trackParam1->GetNonBendingSlope(); | |
1678 | pYZ = 1/TMath::Abs(trackParam1->GetInverseBendingMomentum()); | |
1679 | pZ = pYZ/TMath::Sqrt(1.0 + bendingSlope * bendingSlope); | |
1680 | pX = pZ * nonBendingSlope; | |
1681 | pY = pZ * bendingSlope; | |
1682 | c = TMath::Sign(1.0, trackParam1->GetInverseBendingMomentum()); | |
1683 | if (fPrintLevel >= 1) | |
1684 | printf(" track parameters at z= %f: X= %f Y= %f pX= %f pY= %f pZ= %f c= %f\n", | |
1685 | z, x, y, pX, pY, pZ, c); | |
1686 | } | |
1687 | // informations about generated particles | |
5d12ce38 | 1688 | np = gAlice->GetMCApp()->GetNtrack(); |
04b5ea16 | 1689 | printf(" **** number of generated particles: %d \n", np); |
1690 | ||
88cb7938 | 1691 | // for (Int_t iPart = 0; iPart < np; iPart++) { |
1692 | // p = gAlice->Particle(iPart); | |
1693 | // printf(" particle %d: type= %d px= %f py= %f pz= %f pdg= %d\n", | |
1694 | // iPart, p->GetPdgCode(), p->Px(), p->Py(), p->Pz(), p->GetPdgCode()); | |
1695 | // } | |
a9e2aefa | 1696 | return; |
1697 | } | |
1698 | ||
276c44b7 | 1699 | |
1700 | //__________________________________________________________________________ | |
1701 | void AliMUONEventReconstructor::EventDumpTrigger(void) | |
1702 | { | |
1703 | // Dump reconstructed trigger event | |
1704 | // and the particle parameters | |
1705 | ||
52c9bc11 | 1706 | AliMUONTriggerTrack *triggertrack ; |
1707 | Int_t nTriggerTracks = fMUONData->RecTriggerTracks()->GetEntriesFast(); | |
276c44b7 | 1708 | |
276c44b7 | 1709 | if (fPrintLevel >= 1) { |
52c9bc11 | 1710 | cout << "****** enter EventDumpTrigger ******" << endl; |
1711 | cout << " Number of Reconstructed tracks :" << nTriggerTracks << endl; | |
276c44b7 | 1712 | } |
1713 | // Loop over reconstructed tracks | |
52c9bc11 | 1714 | for (Int_t trackIndex = 0; trackIndex < nTriggerTracks; trackIndex++) { |
1715 | triggertrack = (AliMUONTriggerTrack*)fMUONData->RecTriggerTracks()->At(trackIndex); | |
276c44b7 | 1716 | printf(" trigger track number %i x11=%f y11=%f thetax=%f thetay=%f \n", |
1717 | trackIndex, | |
1718 | triggertrack->GetX11(),triggertrack->GetY11(), | |
1719 | triggertrack->GetThetax(),triggertrack->GetThetay()); | |
1720 | } | |
1721 | } | |
1722 | ||
1723 | //__________________________________________________________________________ | |
c7ba256d | 1724 | void AliMUONEventReconstructor::FillEvent() |
1725 | { | |
1726 | // Create a new AliMUONRecoEvent, fill its track list, then add it as a | |
1727 | // leaf in the Event branch of TreeRecoEvent tree | |
1728 | cout << "Enter FillEvent() ...\n"; | |
1729 | ||
1730 | if (!fRecoEvent) { | |
1731 | fRecoEvent = new AliMUONRecoEvent(); | |
1732 | } else { | |
1733 | fRecoEvent->Clear(); | |
1734 | } | |
1735 | //save current directory | |
1736 | TDirectory *current = gDirectory; | |
1737 | if (!fTreeFile) fTreeFile = new TFile("tree_reco.root", "RECREATE"); | |
1738 | if (!fEventTree) fEventTree = new TTree("TreeRecoEvent", "MUON reconstructed events"); | |
83dbc640 | 1739 | //AZif (fRecoEvent->MakeDumpTracks(fRecTracksPtr)) { |
1740 | if (fRecoEvent->MakeDumpTracks(fMuons, fRecTracksPtr, this)) { //AZ | |
c7ba256d | 1741 | if (fPrintLevel > 1) fRecoEvent->EventInfo(); |
1742 | TBranch *branch = fEventTree->GetBranch("Event"); | |
d0f40f23 | 1743 | if (!branch) branch = fEventTree->Branch("Event", "AliMUONRecoEvent", &fRecoEvent, 64000); |
c7ba256d | 1744 | branch->SetAutoDelete(); |
1745 | fTreeFile->cd(); | |
1746 | fEventTree->Fill(); | |
1747 | fTreeFile->Write(); | |
1748 | } | |
1749 | // restore directory | |
1750 | current->cd(); | |
1751 | } | |
83dbc640 | 1752 | |
1753 | //__________________________________________________________________________ | |
1754 | void AliMUONEventReconstructor::MakeTrackCandidatesK(void) | |
1755 | { | |
1756 | // To make initial tracks for Kalman filter from the list of segments | |
1757 | Int_t istat, iseg; | |
1758 | AliMUONSegment *segment; | |
1759 | AliMUONTrackK *trackK; | |
1760 | ||
1761 | if (fPrintLevel >= 1) cout << "enter MakeTrackCandidatesK" << endl; | |
1762 | // Reset the TClonesArray of reconstructed tracks | |
1763 | if (fRecTracksPtr) fRecTracksPtr->Delete(); | |
1764 | // Delete in order that the Track destructors are called, | |
1765 | // hence the space for the TClonesArray of pointers to TrackHit's is freed | |
1766 | fNRecTracks = 0; | |
1767 | ||
1768 | AliMUONTrackK a(this, fHitsForRecPtr); // bad idea ??? | |
1769 | // Loop over stations(1...) 5 and 4 | |
1770 | for (istat=4; istat>=3; istat--) { | |
1771 | // Loop over segments in the station | |
1772 | for (iseg=0; iseg<fNSegments[istat]; iseg++) { | |
1773 | // Transform segments to tracks and evaluate covariance matrix | |
1774 | segment = (AliMUONSegment*) ((*fSegmentsPtr[istat])[iseg]); | |
1775 | trackK = new ((*fRecTracksPtr)[fNRecTracks]) AliMUONTrackK(segment); | |
1776 | fNRecTracks++; | |
1777 | } // for (iseg=0;...) | |
1778 | } // for (istat=4;...) | |
1779 | return; | |
1780 | } | |
1781 | ||
1782 | //__________________________________________________________________________ | |
1783 | void AliMUONEventReconstructor::FollowTracksK(void) | |
1784 | { | |
1785 | // Follow tracks using Kalman filter | |
30178c30 | 1786 | Bool_t ok; |
b035a148 | 1787 | Int_t icand, ichamBeg = 0, ichamEnd, chamBits; |
83dbc640 | 1788 | Double_t zDipole1, zDipole2; |
1789 | AliMUONTrackK *trackK; | |
1790 | AliMUONHitForRec *hit; | |
1791 | AliMUONRawCluster *clus; | |
1792 | TClonesArray *rawclusters; | |
83dbc640 | 1793 | clus = 0; rawclusters = 0; |
1794 | ||
b035a148 | 1795 | //AZ(z->-z) zDipole1 = GetSimpleBPosition() - GetSimpleBLength()/2; |
1796 | //AZ(z->-z) zDipole2 = zDipole1 + GetSimpleBLength(); | |
1797 | zDipole1 = GetSimpleBPosition() + GetSimpleBLength()/2; | |
1798 | zDipole2 = zDipole1 - GetSimpleBLength(); | |
83dbc640 | 1799 | |
1800 | // Print hits | |
b035a148 | 1801 | trackK = (AliMUONTrackK*) ((*fRecTracksPtr)[0]); |
1802 | if (trackK->DebugLevel() > 0) { | |
1803 | for (Int_t i1=0; i1<fNHitsForRec; i1++) { | |
1804 | hit = (AliMUONHitForRec*) ((*fHitsForRecPtr)[i1]); | |
29fc2c86 | 1805 | //if (hit->GetTTRTrack() > 1 || hit->GetTrackRefSignal() == 0) continue; |
b035a148 | 1806 | printf(" Hit # %d %10.4f %10.4f %10.4f", |
1807 | hit->GetChamberNumber(), hit->GetBendingCoor(), | |
1808 | hit->GetNonBendingCoor(), hit->GetZ()); | |
29fc2c86 | 1809 | if (fRecTrackRefHits) { |
1810 | // from track ref hits | |
1811 | printf(" %3d %3d \n", hit->GetTrackRefSignal(), hit->GetTTRTrack()); | |
b035a148 | 1812 | } else { |
1813 | // from raw clusters | |
1814 | rawclusters = fMUONData->RawClusters(hit->GetChamberNumber()); | |
1815 | clus = (AliMUONRawCluster*) rawclusters->UncheckedAt(hit-> | |
1816 | GetHitNumber()); | |
1817 | printf("%3d", clus->GetTrack(1)-1); | |
1818 | if (clus->GetTrack(2) != 0) printf("%3d \n", clus->GetTrack(2)-1); | |
1819 | else printf("\n"); | |
29fc2c86 | 1820 | } // if (fRecTrackRefHits) |
83dbc640 | 1821 | } |
b035a148 | 1822 | } // if (trackK->DebugLevel() > 0) |
83dbc640 | 1823 | |
1824 | icand = -1; | |
b035a148 | 1825 | Int_t nSeeds; |
1826 | nSeeds = fNRecTracks; // starting number of seeds | |
83dbc640 | 1827 | // Loop over track candidates |
1828 | while (icand < fNRecTracks-1) { | |
1829 | icand ++; | |
b035a148 | 1830 | if (trackK->DebugLevel()>0) cout << " *** Kalman track candidate No. " << icand << endl; |
83dbc640 | 1831 | trackK = (AliMUONTrackK*) ((*fRecTracksPtr)[icand]); |
b035a148 | 1832 | if (trackK->GetRecover() < 0) continue; // failed track |
83dbc640 | 1833 | |
1834 | // Discard candidate which will produce the double track | |
b035a148 | 1835 | /* |
83dbc640 | 1836 | if (icand > 0) { |
30178c30 | 1837 | ok = CheckCandidateK(icand,nSeeds); |
1838 | if (!ok) { | |
b035a148 | 1839 | trackK->SetRecover(-1); // mark candidate to be removed |
1840 | continue; | |
83dbc640 | 1841 | } |
1842 | } | |
b035a148 | 1843 | */ |
83dbc640 | 1844 | |
30178c30 | 1845 | ok = kTRUE; |
83dbc640 | 1846 | if (trackK->GetRecover() == 0) hit = (AliMUONHitForRec*) |
1847 | trackK->GetHitOnTrack()->Last(); // last hit | |
b035a148 | 1848 | //else hit = (AliMUONHitForRec*) (*trackK->GetHitOnTrack())[1]; // 2'nd hit |
1849 | else hit = trackK->GetHitLastOk(); // hit where track stopped | |
1850 | if (hit) ichamBeg = hit->GetChamberNumber(); | |
83dbc640 | 1851 | ichamEnd = 0; |
1852 | // Check propagation direction | |
b035a148 | 1853 | if (hit == NULL) ichamBeg = ichamEnd; |
1854 | //AZ(z->-z) else if (trackK->GetTrackDir() > 0) { | |
1855 | else if (trackK->GetTrackDir() < 0) { | |
83dbc640 | 1856 | ichamEnd = 9; // forward propagation |
30178c30 | 1857 | ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kFALSE,zDipole1,zDipole2); |
1858 | if (ok) { | |
83dbc640 | 1859 | ichamBeg = ichamEnd; |
1860 | ichamEnd = 6; // backward propagation | |
1861 | // Change weight matrix and zero fChi2 for backpropagation | |
1862 | trackK->StartBack(); | |
b035a148 | 1863 | //AZ trackK->SetTrackDir(-1); |
1864 | trackK->SetTrackDir(1); | |
30178c30 | 1865 | ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kTRUE,zDipole1,zDipole2); |
83dbc640 | 1866 | ichamBeg = ichamEnd; |
1867 | ichamEnd = 0; | |
1868 | } | |
1869 | } else { | |
1870 | if (trackK->GetBPFlag()) { | |
1871 | // backpropagation | |
1872 | ichamEnd = 6; // backward propagation | |
1873 | // Change weight matrix and zero fChi2 for backpropagation | |
1874 | trackK->StartBack(); | |
30178c30 | 1875 | ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kTRUE,zDipole1,zDipole2); |
83dbc640 | 1876 | ichamBeg = ichamEnd; |
1877 | ichamEnd = 0; | |
1878 | } | |
1879 | } | |
1880 | ||
30178c30 | 1881 | if (ok) { |
b035a148 | 1882 | //AZ trackK->SetTrackDir(-1); |
1883 | trackK->SetTrackDir(1); | |
83dbc640 | 1884 | trackK->SetBPFlag(kFALSE); |
30178c30 | 1885 | ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kFALSE,zDipole1,zDipole2); |
83dbc640 | 1886 | } |
b035a148 | 1887 | if (!ok) { trackK->SetRecover(-1); continue; } // mark candidate to be removed |
1888 | ||
1889 | // Apply smoother | |
1890 | if (trackK->GetRecover() >= 0) { | |
1891 | ok = trackK->Smooth(); | |
1892 | if (!ok) trackK->SetRecover(-1); // mark candidate to be removed | |
1893 | } | |
83dbc640 | 1894 | |
1895 | // Majority 3 of 4 in first 2 stations | |
b035a148 | 1896 | if (!ok) continue; |
83dbc640 | 1897 | chamBits = 0; |
b035a148 | 1898 | Double_t chi2_max = 0; |
83dbc640 | 1899 | for (Int_t i=0; i<trackK->GetNTrackHits(); i++) { |
1900 | hit = (AliMUONHitForRec*) (*trackK->GetHitOnTrack())[i]; | |
b035a148 | 1901 | chamBits |= BIT(hit->GetChamberNumber()); |
1902 | if (trackK->GetChi2PerPoint(i) > chi2_max) chi2_max = trackK->GetChi2PerPoint(i); | |
83dbc640 | 1903 | } |
b035a148 | 1904 | if (!((chamBits&3)==3 || (chamBits>>2&3)==3) && chi2_max > 25) { |
1905 | //trackK->Recover(); | |
1906 | trackK->SetRecover(-1); //mark candidate to be removed | |
1907 | continue; | |
1908 | } | |
1909 | if (ok) trackK->SetTrackQuality(0); // compute "track quality" | |
83dbc640 | 1910 | } // while |
1911 | ||
1912 | for (Int_t i=0; i<fNRecTracks; i++) { | |
1913 | trackK = (AliMUONTrackK*) ((*fRecTracksPtr)[i]); | |
1914 | if (trackK->GetRecover() < 0) fRecTracksPtr->RemoveAt(i); | |
1915 | } | |
1916 | ||
1917 | // Compress TClonesArray | |
1918 | fRecTracksPtr->Compress(); | |
1919 | fNRecTracks = fRecTracksPtr->GetEntriesFast(); | |
1920 | return; | |
1921 | } | |
1922 | ||
1923 | //__________________________________________________________________________ | |
30178c30 | 1924 | Bool_t AliMUONEventReconstructor::CheckCandidateK(Int_t icand, Int_t nSeeds) const |
83dbc640 | 1925 | { |
1926 | // Discards track candidate if it will produce the double track (having | |
1927 | // the same seed segment hits as hits of a good track found before) | |
1928 | AliMUONTrackK *track1, *track2; | |
1929 | AliMUONHitForRec *hit1, *hit2, *hit; | |
1930 | ||
1931 | track1 = (AliMUONTrackK*) ((*fRecTracksPtr)[icand]); | |
1932 | hit1 = (AliMUONHitForRec*) (*track1->GetHitOnTrack())[0]; // 1'st hit | |
1933 | hit2 = (AliMUONHitForRec*) (*track1->GetHitOnTrack())[1]; // 2'nd hit | |
1934 | ||
1935 | for (Int_t i=0; i<icand; i++) { | |
1936 | track2 = (AliMUONTrackK*) ((*fRecTracksPtr)[i]); | |
1937 | //if (track2->GetRecover() < 0) continue; | |
1938 | if (track2->GetRecover() < 0 && icand >= nSeeds) continue; | |
1939 | ||
1940 | if (track1->GetStartSegment() == track2->GetStartSegment()) { | |
1941 | return kFALSE; | |
1942 | } else { | |
1943 | Int_t nSame = 0; | |
1944 | for (Int_t j=0; j<track2->GetNTrackHits(); j++) { | |
1945 | hit = (AliMUONHitForRec*) (*track2->GetHitOnTrack())[j]; | |
1946 | if (hit == hit1 || hit == hit2) { | |
1947 | nSame++; | |
1948 | if (nSame == 2) return kFALSE; | |
1949 | } | |
1950 | } // for (Int_t j=0; | |
1951 | } | |
1952 | } // for (Int_t i=0; | |
1953 | return kTRUE; | |
1954 | } | |
1955 | ||
1956 | //__________________________________________________________________________ | |
1957 | void AliMUONEventReconstructor::RemoveDoubleTracksK(void) | |
1958 | { | |
1959 | // Removes double tracks (sharing more than half of their hits). Keeps | |
1960 | // the track with higher quality | |
1961 | AliMUONTrackK *track1, *track2, *trackToKill; | |
1962 | ||
1963 | // Sort tracks according to their quality | |
1964 | fRecTracksPtr->Sort(); | |
1965 | ||
1966 | // Loop over first track of the pair | |
1967 | track1 = (AliMUONTrackK*) fRecTracksPtr->First(); | |
b035a148 | 1968 | Int_t debug = track1->DebugLevel(); |
83dbc640 | 1969 | while (track1) { |
1970 | // Loop over second track of the pair | |
1971 | track2 = (AliMUONTrackK*) fRecTracksPtr->After(track1); | |
1972 | while (track2) { | |
1973 | // Check whether or not to keep track2 | |
1974 | if (!track2->KeepTrack(track1)) { | |
b035a148 | 1975 | if (debug >= 0) cout << " Killed track: " << 1/(*track2->GetTrackParameters())(4,0) << |
83dbc640 | 1976 | " " << track2->GetTrackQuality() << endl; |
1977 | trackToKill = track2; | |
1978 | track2 = (AliMUONTrackK*) fRecTracksPtr->After(track2); | |
1979 | trackToKill->Kill(); | |
1980 | fRecTracksPtr->Compress(); | |
1981 | } else track2 = (AliMUONTrackK*) fRecTracksPtr->After(track2); | |
1982 | } // track2 | |
1983 | track1 = (AliMUONTrackK*) fRecTracksPtr->After(track1); | |
1984 | } // track1 | |
1985 | ||
1986 | fNRecTracks = fRecTracksPtr->GetEntriesFast(); | |
b035a148 | 1987 | if (debug >= 0) cout << " Number of Kalman tracks: " << fNRecTracks << endl; |
83dbc640 | 1988 | } |
1989 | ||
1990 | //__________________________________________________________________________ | |
1991 | void AliMUONEventReconstructor::GoToVertex(void) | |
1992 | { | |
1993 | // Propagates track to the vertex thru absorber | |
1994 | // (using Branson correction for now) | |
1995 | ||
1996 | Double_t zVertex; | |
1997 | zVertex = 0; | |
1998 | for (Int_t i=0; i<fNRecTracks; i++) { | |
1999 | //((AliMUONTrackK*)(*fRecTracksPtr)[i])->Branson(); | |
83dbc640 | 2000 | ((AliMUONTrackK*)(*fRecTracksPtr)[i])->SetTrackQuality(1); // compute Chi2 |
b035a148 | 2001 | //((AliMUONTrackK*)(*fRecTracksPtr)[i])->GoToZ(zVertex); // w/out absorber |
2002 | ((AliMUONTrackK*)(*fRecTracksPtr)[i])->GoToVertex(1); // with absorber | |
83dbc640 | 2003 | } |
2004 | } | |
b035a148 | 2005 | |
2006 | //__________________________________________________________________________ | |
2007 | void AliMUONEventReconstructor::SetTrackMethod(Int_t iTrackMethod) | |
2008 | { | |
2009 | // Set track method and recreate track container if necessary | |
2010 | ||
2011 | fTrackMethod = iTrackMethod == 2 ? 2 : 1; | |
2012 | if (fTrackMethod == 2) { | |
2013 | if (fRecTracksPtr) delete fRecTracksPtr; | |
2014 | fRecTracksPtr = new TClonesArray("AliMUONTrackK", 10); | |
2015 | cout << " *** Tracking with the Kalman filter *** " << endl; | |
2016 | } else cout << " *** Traditional tracking *** " << endl; | |
2017 | ||
2018 | } |