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e43c066c | 1 | /************************************************************************** |
9a5326b1 | 2 | * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. * |
e43c066c | 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 | **************************************************************************/ | |
fddf8459 | 15 | /* $Id$ */ |
bf6adc12 | 16 | |
e43c066c | 17 | //------------------------------------------------------------------------- |
18 | // Implementation of the ITS tracker class | |
00a7cc50 | 19 | // It reads AliITSRecPoint clusters and creates AliITStrackMI tracks |
e43c066c | 20 | // and fills with them the ESD |
15dd636f | 21 | // Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch |
23197852 | 22 | // Current support and development: |
23 | // Andrea Dainese, andrea.dainese@lnl.infn.it | |
afd25725 | 24 | // dE/dx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch |
25 | // Params moved to AliITSRecoParam by: Andrea Dainese, INFN | |
26 | // Material budget from TGeo by: Ludovic Gaudichet & Andrea Dainese, INFN | |
e43c066c | 27 | //------------------------------------------------------------------------- |
bf6adc12 | 28 | |
29 | #include <TMatrixD.h> | |
e43c066c | 30 | #include <TTree.h> |
afd25725 | 31 | #include <TDatabasePDG.h> |
9a5326b1 | 32 | #include <TString.h> |
e50912db | 33 | #include <TRandom.h> |
a70ed6ad | 34 | #include <TTreeStream.h> |
bf6adc12 | 35 | |
4187a601 | 36 | #include "AliLog.h" |
a70ed6ad | 37 | #include "AliITSPlaneEff.h" |
38 | #include "AliITSCalibrationSPD.h" | |
39 | #include "AliITSCalibrationSDD.h" | |
40 | #include "AliITSCalibrationSSD.h" | |
41 | #include "AliCDBEntry.h" | |
42 | #include "AliCDBManager.h" | |
43 | #include "AliAlignObj.h" | |
44 | #include "AliTrackPointArray.h" | |
45 | #include "AliESDVertex.h" | |
af885e0f | 46 | #include "AliESDEvent.h" |
aad72f45 | 47 | #include "AliESDtrack.h" |
6c94f330 | 48 | #include "AliV0.h" |
bf6adc12 | 49 | #include "AliHelix.h" |
a70ed6ad | 50 | #include "AliITSChannelStatus.h" |
51 | #include "AliITSDetTypeRec.h" | |
00a7cc50 | 52 | #include "AliITSRecPoint.h" |
2b295109 | 53 | #include "AliITSRecPointContainer.h" |
e341247d | 54 | #include "AliITSgeomTGeo.h" |
44347160 | 55 | #include "AliITSReconstructor.h" |
572f41f9 | 56 | #include "AliITSClusterParam.h" |
23197852 | 57 | #include "AliITSsegmentation.h" |
58 | #include "AliITSCalibration.h" | |
7167ae53 | 59 | #include "AliITSPlaneEffSPD.h" |
60 | #include "AliITSPlaneEffSDD.h" | |
61 | #include "AliITSPlaneEffSSD.h" | |
44396017 | 62 | #include "AliITSV0Finder.h" |
ae00569a | 63 | #include "AliITStrackerMI.h" |
bb7e41dd | 64 | #include "AliMathBase.h" |
e43c066c | 65 | |
66 | ClassImp(AliITStrackerMI) | |
e43c066c | 67 | |
e50912db | 68 | AliITStrackerMI::AliITSlayer AliITStrackerMI::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers |
44347160 | 69 | |
8221b41b | 70 | AliITStrackerMI::AliITStrackerMI():AliTracker(), |
71 | fI(0), | |
72 | fBestTrack(), | |
73 | fTrackToFollow(), | |
74 | fTrackHypothesys(), | |
75 | fBestHypothesys(), | |
76 | fOriginal(), | |
77 | fCurrentEsdTrack(), | |
78 | fPass(0), | |
79 | fAfterV0(kFALSE), | |
80 | fLastLayerToTrackTo(0), | |
afd25725 | 81 | fCoefficients(0), |
8221b41b | 82 | fEsd(0), |
e50912db | 83 | fTrackingPhase("Default"), |
6518a6c5 | 84 | fUseTGeo(3), |
e50912db | 85 | fNtracks(0), |
86 | fxOverX0Pipe(-1.), | |
87 | fxTimesRhoPipe(-1.), | |
88 | fxOverX0PipeTrks(0), | |
89 | fxTimesRhoPipeTrks(0), | |
90 | fxOverX0ShieldTrks(0), | |
91 | fxTimesRhoShieldTrks(0), | |
92 | fxOverX0LayerTrks(0), | |
93 | fxTimesRhoLayerTrks(0), | |
4a66240a | 94 | fDebugStreamer(0), |
23197852 | 95 | fITSChannelStatus(0), |
a70ed6ad | 96 | fkDetTypeRec(0), |
ae00569a | 97 | fPlaneEff(0) { |
8221b41b | 98 | //Default constructor |
e50912db | 99 | Int_t i; |
100 | for(i=0;i<4;i++) fSPDdetzcentre[i]=0.; | |
101 | for(i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;} | |
102 | for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;} | |
8221b41b | 103 | } |
44347160 | 104 | //------------------------------------------------------------------------ |
1f3e997f | 105 | AliITStrackerMI::AliITStrackerMI(const Char_t *geom) : AliTracker(), |
e50912db | 106 | fI(AliITSgeomTGeo::GetNLayers()), |
8221b41b | 107 | fBestTrack(), |
108 | fTrackToFollow(), | |
109 | fTrackHypothesys(), | |
110 | fBestHypothesys(), | |
111 | fOriginal(), | |
112 | fCurrentEsdTrack(), | |
113 | fPass(0), | |
114 | fAfterV0(kFALSE), | |
e50912db | 115 | fLastLayerToTrackTo(AliITSRecoParam::GetLastLayerToTrackTo()), |
afd25725 | 116 | fCoefficients(0), |
8221b41b | 117 | fEsd(0), |
e50912db | 118 | fTrackingPhase("Default"), |
6518a6c5 | 119 | fUseTGeo(3), |
e50912db | 120 | fNtracks(0), |
121 | fxOverX0Pipe(-1.), | |
122 | fxTimesRhoPipe(-1.), | |
123 | fxOverX0PipeTrks(0), | |
124 | fxTimesRhoPipeTrks(0), | |
125 | fxOverX0ShieldTrks(0), | |
126 | fxTimesRhoShieldTrks(0), | |
127 | fxOverX0LayerTrks(0), | |
128 | fxTimesRhoLayerTrks(0), | |
4a66240a | 129 | fDebugStreamer(0), |
23197852 | 130 | fITSChannelStatus(0), |
a70ed6ad | 131 | fkDetTypeRec(0), |
ae00569a | 132 | fPlaneEff(0) { |
e43c066c | 133 | //-------------------------------------------------------------------- |
134 | //This is the AliITStrackerMI constructor | |
135 | //-------------------------------------------------------------------- | |
e341247d | 136 | if (geom) { |
137 | AliWarning("\"geom\" is actually a dummy argument !"); | |
138 | } | |
139 | ||
afd25725 | 140 | fCoefficients = 0; |
628e7bb0 | 141 | fAfterV0 = kFALSE; |
e341247d | 142 | |
e50912db | 143 | for (Int_t i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) { |
e341247d | 144 | Int_t nlad=AliITSgeomTGeo::GetNLadders(i); |
145 | Int_t ndet=AliITSgeomTGeo::GetNDetectors(i); | |
146 | ||
147 | Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z=xyz[2]; | |
bf1cd124 | 148 | AliITSgeomTGeo::GetTranslation(i,1,1,xyz); |
e43c066c | 149 | Double_t poff=TMath::ATan2(y,x); |
150 | Double_t zoff=z; | |
bf1cd124 | 151 | |
152 | AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz); | |
e341247d | 153 | Double_t r=TMath::Sqrt(x*x + y*y); |
e43c066c | 154 | |
e341247d | 155 | AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz); |
e43c066c | 156 | r += TMath::Sqrt(x*x + y*y); |
e341247d | 157 | AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz); |
e43c066c | 158 | r += TMath::Sqrt(x*x + y*y); |
e341247d | 159 | AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz); |
e43c066c | 160 | r += TMath::Sqrt(x*x + y*y); |
161 | r*=0.25; | |
162 | ||
163 | new (fgLayers+i-1) AliITSlayer(r,poff,zoff,nlad,ndet); | |
164 | ||
165 | for (Int_t j=1; j<nlad+1; j++) { | |
166 | for (Int_t k=1; k<ndet+1; k++) { //Fill this layer with detectors | |
e341247d | 167 | TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m); |
1f3e997f | 168 | const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k); |
169 | m.Multiply(tm); | |
a5d0fae6 | 170 | Double_t txyz[3]={0.}; |
171 | xyz[0]=0.;xyz[1]=0.;xyz[2]=0.; | |
1f3e997f | 172 | m.LocalToMaster(txyz,xyz); |
a5d0fae6 | 173 | r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]); |
1f3e997f | 174 | Double_t phi=TMath::ATan2(xyz[1],xyz[0]); |
e341247d | 175 | |
176 | if (phi<0) phi+=TMath::TwoPi(); | |
177 | else if (phi>=TMath::TwoPi()) phi-=TMath::TwoPi(); | |
178 | ||
e43c066c | 179 | AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1); |
180 | new(&det) AliITSdetector(r,phi); | |
1c97ce2f | 181 | // compute the real radius (with misalignment) |
182 | TGeoHMatrix mmisal(*(AliITSgeomTGeo::GetMatrix(i,j,k))); | |
183 | mmisal.Multiply(tm); | |
184 | xyz[0]=0.;xyz[1]=0.;xyz[2]=0.; | |
185 | mmisal.LocalToMaster(txyz,xyz); | |
186 | Double_t rmisal=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]); | |
187 | det.SetRmisal(rmisal); | |
188 | ||
23197852 | 189 | } // end loop on detectors |
190 | } // end loop on ladders | |
4fa7f7d1 | 191 | fForceSkippingOfLayer[i] = 0; |
23197852 | 192 | } // end loop on layers |
e43c066c | 193 | |
e43c066c | 194 | |
e50912db | 195 | fI=AliITSgeomTGeo::GetNLayers(); |
e43c066c | 196 | |
197 | fPass=0; | |
198 | fConstraint[0]=1; fConstraint[1]=0; | |
199 | ||
afd25725 | 200 | Double_t xyzVtx[]={AliITSReconstructor::GetRecoParam()->GetXVdef(), |
201 | AliITSReconstructor::GetRecoParam()->GetYVdef(), | |
202 | AliITSReconstructor::GetRecoParam()->GetZVdef()}; | |
203 | Double_t ersVtx[]={AliITSReconstructor::GetRecoParam()->GetSigmaXVdef(), | |
204 | AliITSReconstructor::GetRecoParam()->GetSigmaYVdef(), | |
205 | AliITSReconstructor::GetRecoParam()->GetSigmaZVdef()}; | |
206 | SetVertex(xyzVtx,ersVtx); | |
e43c066c | 207 | |
e50912db | 208 | fLastLayerToTrackTo=AliITSRecoParam::GetLastLayerToTrackTo(); |
628e7bb0 | 209 | for (Int_t i=0;i<100000;i++){ |
210 | fBestTrackIndex[i]=0; | |
211 | } | |
afd25725 | 212 | |
213 | // store positions of centre of SPD modules (in z) | |
bf1cd124 | 214 | // The convetion is that fSPDdetzcentre is ordered from -z to +z |
afd25725 | 215 | Double_t tr[3]; |
bf1cd124 | 216 | if (tr[2]<0) { // old geom (up to v5asymmPPR) |
217 | AliITSgeomTGeo::GetTranslation(1,1,1,tr); | |
218 | fSPDdetzcentre[0] = tr[2]; | |
219 | AliITSgeomTGeo::GetTranslation(1,1,2,tr); | |
220 | fSPDdetzcentre[1] = tr[2]; | |
221 | AliITSgeomTGeo::GetTranslation(1,1,3,tr); | |
222 | fSPDdetzcentre[2] = tr[2]; | |
223 | AliITSgeomTGeo::GetTranslation(1,1,4,tr); | |
224 | fSPDdetzcentre[3] = tr[2]; | |
225 | } else { // new geom (from v11Hybrid) | |
226 | AliITSgeomTGeo::GetTranslation(1,1,4,tr); | |
227 | fSPDdetzcentre[0] = tr[2]; | |
228 | AliITSgeomTGeo::GetTranslation(1,1,3,tr); | |
229 | fSPDdetzcentre[1] = tr[2]; | |
230 | AliITSgeomTGeo::GetTranslation(1,1,2,tr); | |
231 | fSPDdetzcentre[2] = tr[2]; | |
232 | AliITSgeomTGeo::GetTranslation(1,1,1,tr); | |
233 | fSPDdetzcentre[3] = tr[2]; | |
234 | } | |
afd25725 | 235 | |
afd25725 | 236 | fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker(); |
6518a6c5 | 237 | if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) { |
238 | AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE"); | |
239 | fUseTGeo = 3; | |
240 | } | |
e50912db | 241 | |
242 | for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;} | |
243 | for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;} | |
244 | ||
81e97e0d | 245 | fDebugStreamer = new TTreeSRedirector("ITSdebug.root"); |
246 | ||
7167ae53 | 247 | // only for plane efficiency evaluation |
58e8dc31 | 248 | if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() && |
249 | AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0) { | |
0ed58a47 | 250 | Int_t iplane=AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff(); |
1a64bda6 | 251 | if(!AliITSReconstructor::GetRecoParam()->GetLayersToSkip(iplane)==1) |
0ed58a47 | 252 | AliWarning(Form("Evaluation of Plane Eff for layer %d will be attempted without removing it from tracker",iplane)); |
253 | if (iplane<2) fPlaneEff = new AliITSPlaneEffSPD(); | |
254 | else if (iplane<4) fPlaneEff = new AliITSPlaneEffSDD(); | |
255 | else fPlaneEff = new AliITSPlaneEffSSD(); | |
275a301c | 256 | if(AliITSReconstructor::GetRecoParam()->GetReadPlaneEffFromOCDB()) |
0ed58a47 | 257 | if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;} |
258 | if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) fPlaneEff->SetCreateHistos(kTRUE); | |
7167ae53 | 259 | } |
628e7bb0 | 260 | } |
44347160 | 261 | //------------------------------------------------------------------------ |
8221b41b | 262 | AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker), |
263 | fI(tracker.fI), | |
264 | fBestTrack(tracker.fBestTrack), | |
265 | fTrackToFollow(tracker.fTrackToFollow), | |
266 | fTrackHypothesys(tracker.fTrackHypothesys), | |
267 | fBestHypothesys(tracker.fBestHypothesys), | |
268 | fOriginal(tracker.fOriginal), | |
269 | fCurrentEsdTrack(tracker.fCurrentEsdTrack), | |
270 | fPass(tracker.fPass), | |
271 | fAfterV0(tracker.fAfterV0), | |
272 | fLastLayerToTrackTo(tracker.fLastLayerToTrackTo), | |
afd25725 | 273 | fCoefficients(tracker.fCoefficients), |
8221b41b | 274 | fEsd(tracker.fEsd), |
e50912db | 275 | fTrackingPhase(tracker.fTrackingPhase), |
afd25725 | 276 | fUseTGeo(tracker.fUseTGeo), |
e50912db | 277 | fNtracks(tracker.fNtracks), |
278 | fxOverX0Pipe(tracker.fxOverX0Pipe), | |
279 | fxTimesRhoPipe(tracker.fxTimesRhoPipe), | |
280 | fxOverX0PipeTrks(0), | |
281 | fxTimesRhoPipeTrks(0), | |
282 | fxOverX0ShieldTrks(0), | |
283 | fxTimesRhoShieldTrks(0), | |
284 | fxOverX0LayerTrks(0), | |
285 | fxTimesRhoLayerTrks(0), | |
4a66240a | 286 | fDebugStreamer(tracker.fDebugStreamer), |
23197852 | 287 | fITSChannelStatus(tracker.fITSChannelStatus), |
a70ed6ad | 288 | fkDetTypeRec(tracker.fkDetTypeRec), |
ae00569a | 289 | fPlaneEff(tracker.fPlaneEff) { |
8221b41b | 290 | //Copy constructor |
e50912db | 291 | Int_t i; |
292 | for(i=0;i<4;i++) { | |
293 | fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i]; | |
294 | } | |
295 | for(i=0;i<6;i++) { | |
296 | fxOverX0Layer[i]=tracker.fxOverX0Layer[i]; | |
297 | fxTimesRhoLayer[i]=tracker.fxTimesRhoLayer[i]; | |
298 | } | |
299 | for(i=0;i<2;i++) { | |
300 | fxOverX0Shield[i]=tracker.fxOverX0Shield[i]; | |
301 | fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i]; | |
302 | } | |
8221b41b | 303 | } |
44347160 | 304 | //------------------------------------------------------------------------ |
8221b41b | 305 | AliITStrackerMI & AliITStrackerMI::operator=(const AliITStrackerMI &tracker){ |
306 | //Assignment operator | |
307 | this->~AliITStrackerMI(); | |
308 | new(this) AliITStrackerMI(tracker); | |
309 | return *this; | |
310 | } | |
44347160 | 311 | //------------------------------------------------------------------------ |
628e7bb0 | 312 | AliITStrackerMI::~AliITStrackerMI() |
313 | { | |
314 | // | |
315 | //destructor | |
316 | // | |
e50912db | 317 | if (fCoefficients) delete [] fCoefficients; |
318 | DeleteTrksMaterialLUT(); | |
81e97e0d | 319 | if (fDebugStreamer) { |
320 | //fDebugStreamer->Close(); | |
321 | delete fDebugStreamer; | |
322 | } | |
23197852 | 323 | if(fITSChannelStatus) delete fITSChannelStatus; |
324 | if(fPlaneEff) delete fPlaneEff; | |
e43c066c | 325 | } |
44347160 | 326 | //------------------------------------------------------------------------ |
23197852 | 327 | void AliITStrackerMI::ReadBadFromDetTypeRec() { |
328 | //-------------------------------------------------------------------- | |
329 | //This function read ITS bad detectors, chips, channels from AliITSDetTypeRec | |
330 | //i.e. from OCDB | |
331 | //-------------------------------------------------------------------- | |
332 | ||
333 | if(!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return; | |
334 | ||
4187a601 | 335 | Info("ReadBadFromDetTypeRec","Reading info about bad ITS detectors and channels"); |
23197852 | 336 | |
a70ed6ad | 337 | if(!fkDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n"); |
23197852 | 338 | |
339 | // ITS channels map | |
340 | if(fITSChannelStatus) delete fITSChannelStatus; | |
a70ed6ad | 341 | fITSChannelStatus = new AliITSChannelStatus(fkDetTypeRec); |
23197852 | 342 | |
343 | // ITS detectors and chips | |
344 | Int_t i=0,j=0,k=0,ndet=0; | |
345 | for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) { | |
4187a601 | 346 | Int_t nBadDetsPerLayer=0; |
23197852 | 347 | ndet=AliITSgeomTGeo::GetNDetectors(i); |
348 | for (j=1; j<AliITSgeomTGeo::GetNLadders(i)+1; j++) { | |
349 | for (k=1; k<ndet+1; k++) { | |
350 | AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1); | |
a70ed6ad | 351 | det.ReadBadDetectorAndChips(i-1,(j-1)*ndet + k-1,fkDetTypeRec); |
4187a601 | 352 | if(det.IsBad()) {nBadDetsPerLayer++;} |
23197852 | 353 | } // end loop on detectors |
354 | } // end loop on ladders | |
4187a601 | 355 | Info("ReadBadFromDetTypeRec",Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i))); |
23197852 | 356 | } // end loop on layers |
357 | ||
358 | return; | |
359 | } | |
360 | //------------------------------------------------------------------------ | |
e43c066c | 361 | Int_t AliITStrackerMI::LoadClusters(TTree *cTree) { |
362 | //-------------------------------------------------------------------- | |
363 | //This function loads ITS clusters | |
364 | //-------------------------------------------------------------------- | |
2b295109 | 365 | |
366 | TClonesArray *clusters = NULL; | |
367 | AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance(); | |
368 | clusters=rpcont->FetchClusters(0,cTree); | |
369 | if(!(rpcont->IsSPDActive() || rpcont->IsSDDActive() || rpcont->IsSSDActive())){ | |
370 | AliError("ITS is not in a known running configuration: SPD, SDD and SSD are not active"); | |
371 | return 1; | |
e43c066c | 372 | } |
23197852 | 373 | Int_t i=0,j=0,ndet=0; |
e43c066c | 374 | Int_t detector=0; |
23197852 | 375 | for (i=0; i<AliITSgeomTGeo::GetNLayers(); i++) { |
376 | ndet=fgLayers[i].GetNdetectors(); | |
e43c066c | 377 | Int_t jmax = j + fgLayers[i].GetNladders()*ndet; |
378 | for (; j<jmax; j++) { | |
2b295109 | 379 | // if (!cTree->GetEvent(j)) continue; |
380 | clusters = rpcont->UncheckedGetClusters(j); | |
381 | if(!clusters)continue; | |
e43c066c | 382 | Int_t ncl=clusters->GetEntriesFast(); |
383 | SignDeltas(clusters,GetZ()); | |
1f3e997f | 384 | |
e43c066c | 385 | while (ncl--) { |
00a7cc50 | 386 | AliITSRecPoint *c=(AliITSRecPoint*)clusters->UncheckedAt(ncl); |
75fb37cc | 387 | detector=c->GetDetectorIndex(); |
a504d56f | 388 | |
75fb37cc | 389 | if (!c->Misalign()) AliWarning("Can't misalign this cluster !"); |
6262dd3d | 390 | |
391 | Int_t retval = fgLayers[i].InsertCluster(new AliITSRecPoint(*c)); | |
392 | if(retval) { | |
393 | AliWarning(Form("Too many clusters on layer %d!",i)); | |
394 | break; | |
395 | } | |
e43c066c | 396 | } |
6262dd3d | 397 | |
afd25725 | 398 | // add dead zone "virtual" cluster in SPD, if there is a cluster within |
399 | // zwindow cm from the dead zone | |
bf1cd124 | 400 | // This method assumes that fSPDdetzcentre is ordered from -z to +z |
afd25725 | 401 | if (i<2 && AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) { |
e50912db | 402 | for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) { |
afd25725 | 403 | Int_t lab[4] = {0,0,0,detector}; |
404 | Int_t info[3] = {0,0,i}; | |
6518a6c5 | 405 | Float_t q = 0.; // this identifies virtual clusters |
afd25725 | 406 | Float_t hit[5] = {xdead, |
407 | 0., | |
408 | AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(), | |
409 | AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(), | |
410 | q}; | |
411 | Bool_t local = kTRUE; | |
412 | Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone(); | |
e50912db | 413 | hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength(); |
afd25725 | 414 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) |
415 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
e50912db | 416 | hit[1] = fSPDdetzcentre[1]-0.5*AliITSRecoParam::GetSPDdetzlength(); |
afd25725 | 417 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) |
418 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
e50912db | 419 | hit[1] = fSPDdetzcentre[1]+0.5*AliITSRecoParam::GetSPDdetzlength(); |
afd25725 | 420 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) |
421 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
e50912db | 422 | hit[1] = fSPDdetzcentre[2]-0.5*AliITSRecoParam::GetSPDdetzlength(); |
afd25725 | 423 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) |
424 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
e50912db | 425 | hit[1] = fSPDdetzcentre[2]+0.5*AliITSRecoParam::GetSPDdetzlength(); |
afd25725 | 426 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) |
427 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
e50912db | 428 | hit[1] = fSPDdetzcentre[3]-0.5*AliITSRecoParam::GetSPDdetzlength(); |
afd25725 | 429 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) |
430 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
e43c066c | 431 | } |
6518a6c5 | 432 | } // "virtual" clusters in SPD |
e43c066c | 433 | |
434 | } | |
435 | // | |
436 | fgLayers[i].ResetRoad(); //road defined by the cluster density | |
437 | fgLayers[i].SortClusters(); | |
438 | } | |
439 | ||
4fa7f7d1 | 440 | // check whether we have to skip some layers |
441 | SetForceSkippingOfLayer(); | |
442 | ||
e43c066c | 443 | return 0; |
444 | } | |
44347160 | 445 | //------------------------------------------------------------------------ |
e43c066c | 446 | void AliITStrackerMI::UnloadClusters() { |
447 | //-------------------------------------------------------------------- | |
448 | //This function unloads ITS clusters | |
449 | //-------------------------------------------------------------------- | |
e50912db | 450 | for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters(); |
e43c066c | 451 | } |
44347160 | 452 | //------------------------------------------------------------------------ |
23197852 | 453 | void AliITStrackerMI::FillClusterArray(TObjArray* array) const { |
454 | //-------------------------------------------------------------------- | |
455 | // Publishes all pointers to clusters known to the tracker into the | |
456 | // passed object array. | |
457 | // The ownership is not transfered - the caller is not expected to delete | |
458 | // the clusters. | |
459 | //-------------------------------------------------------------------- | |
460 | ||
461 | for(Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) { | |
462 | for(Int_t icl=0; icl<fgLayers[i].GetNumberOfClusters(); icl++) { | |
463 | AliCluster *cl = (AliCluster*)fgLayers[i].GetCluster(icl); | |
464 | array->AddLast(cl); | |
465 | } | |
466 | } | |
467 | ||
468 | return; | |
469 | } | |
470 | //------------------------------------------------------------------------ | |
44396017 | 471 | Int_t AliITStrackerMI::CorrectForTPCtoITSDeadZoneMaterial(AliITStrackMI *t) { |
e43c066c | 472 | //-------------------------------------------------------------------- |
473 | // Correction for the material between the TPC and the ITS | |
e43c066c | 474 | //-------------------------------------------------------------------- |
e50912db | 475 | if (t->GetX() > AliITSRecoParam::Getriw()) { // inward direction |
476 | if (!t->PropagateToTGeo(AliITSRecoParam::Getriw(),1)) return 0;// TPC inner wall | |
477 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum | |
478 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen | |
479 | } else if (t->GetX() < AliITSRecoParam::Getrs()) { // outward direction | |
480 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen | |
481 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum | |
482 | if (!t->PropagateToTGeo(AliITSRecoParam::Getriw()+0.001,1)) return 0;// TPC inner wall | |
e43c066c | 483 | } else { |
44396017 | 484 | printf("CorrectForTPCtoITSDeadZoneMaterial: Track is already in the dead zone !\n"); |
e50912db | 485 | return 0; |
e43c066c | 486 | } |
487 | ||
e50912db | 488 | return 1; |
e43c066c | 489 | } |
44347160 | 490 | //------------------------------------------------------------------------ |
af885e0f | 491 | Int_t AliITStrackerMI::Clusters2Tracks(AliESDEvent *event) { |
e43c066c | 492 | //-------------------------------------------------------------------- |
493 | // This functions reconstructs ITS tracks | |
494 | // The clusters must be already loaded ! | |
495 | //-------------------------------------------------------------------- | |
fddf8459 | 496 | |
4fa7f7d1 | 497 | AliDebug(2,Form("SKIPPING %d %d %d %d %d %d",ForceSkippingOfLayer(0),ForceSkippingOfLayer(1),ForceSkippingOfLayer(2),ForceSkippingOfLayer(3),ForceSkippingOfLayer(4),ForceSkippingOfLayer(5))); |
fddf8459 | 498 | |
e50912db | 499 | fTrackingPhase="Clusters2Tracks"; |
500 | ||
e43c066c | 501 | TObjArray itsTracks(15000); |
628e7bb0 | 502 | fOriginal.Clear(); |
81e97e0d | 503 | fEsd = event; // store pointer to the esd |
afd25725 | 504 | |
9a5326b1 | 505 | // temporary (for cosmics) |
506 | if(event->GetVertex()) { | |
507 | TString title = event->GetVertex()->GetTitle(); | |
508 | if(title.Contains("cosmics")) { | |
509 | Double_t xyz[3]={GetX(),GetY(),GetZ()}; | |
510 | Double_t exyz[3]={0.1,0.1,0.1}; | |
511 | SetVertex(xyz,exyz); | |
512 | } | |
513 | } | |
514 | // temporary | |
75a74b11 | 515 | Int_t noesd = 0; |
e43c066c | 516 | {/* Read ESD tracks */ |
afd25725 | 517 | Double_t pimass = TDatabasePDG::Instance()->GetParticle(211)->Mass(); |
e43c066c | 518 | Int_t nentr=event->GetNumberOfTracks(); |
75a74b11 | 519 | noesd=nentr; |
520 | // Info("Clusters2Tracks", "Number of ESD tracks: %d\n", nentr); | |
e43c066c | 521 | while (nentr--) { |
522 | AliESDtrack *esd=event->GetTrack(nentr); | |
4187a601 | 523 | // ---- for debugging: |
524 | //if(TMath::Abs(esd->GetX()-83.65)<0.1) { FILE *f=fopen("tpc.dat","a"); fprintf(f,"%f %f %f %f %f %f\n",(Float_t)event->GetEventNumberInFile(),(Float_t)TMath::Abs(esd->GetLabel()),(Float_t)esd->GetX(),(Float_t)esd->GetY(),(Float_t)esd->GetZ(),(Float_t)esd->Pt()); fclose(f); } | |
e43c066c | 525 | |
526 | if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) continue; | |
527 | if (esd->GetStatus()&AliESDtrack::kTPCout) continue; | |
528 | if (esd->GetStatus()&AliESDtrack::kITSin) continue; | |
51ad6848 | 529 | if (esd->GetKinkIndex(0)>0) continue; //kink daughter |
15dd636f | 530 | AliITStrackMI *t=0; |
e43c066c | 531 | try { |
15dd636f | 532 | t=new AliITStrackMI(*esd); |
e43c066c | 533 | } catch (const Char_t *msg) { |
628e7bb0 | 534 | //Warning("Clusters2Tracks",msg); |
e43c066c | 535 | delete t; |
536 | continue; | |
537 | } | |
b9671574 | 538 | t->GetDZ(GetX(),GetY(),GetZ(),t->GetDP()); //I.B. |
539 | Double_t vdist = TMath::Sqrt(t->GetD(0)*t->GetD(0)+t->GetD(1)*t->GetD(1)); | |
6518a6c5 | 540 | |
541 | ||
afd25725 | 542 | // look at the ESD mass hypothesys ! |
543 | if (t->GetMass()<0.9*pimass) t->SetMass(pimass); | |
e43c066c | 544 | // write expected q |
b9671574 | 545 | t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.)); |
e43c066c | 546 | |
afd25725 | 547 | if (esd->GetV0Index(0)>0 && t->GetD(0)<AliITSReconstructor::GetRecoParam()->GetMaxDforV0dghtrForProlongation()){ |
81e97e0d | 548 | //track - can be V0 according to TPC |
afd25725 | 549 | } else { |
550 | if (TMath::Abs(t->GetD(0))>AliITSReconstructor::GetRecoParam()->GetMaxDForProlongation()) { | |
81e97e0d | 551 | delete t; |
552 | continue; | |
e50912db | 553 | } |
afd25725 | 554 | if (TMath::Abs(vdist)>AliITSReconstructor::GetRecoParam()->GetMaxDZForProlongation()) { |
81e97e0d | 555 | delete t; |
556 | continue; | |
557 | } | |
6c23ffed | 558 | if (t->Pt()<AliITSReconstructor::GetRecoParam()->GetMinPtForProlongation()) { |
81e97e0d | 559 | delete t; |
560 | continue; | |
561 | } | |
e50912db | 562 | if (!CorrectForTPCtoITSDeadZoneMaterial(t)) { |
81e97e0d | 563 | delete t; |
564 | continue; | |
565 | } | |
e43c066c | 566 | } |
b9671574 | 567 | t->SetReconstructed(kFALSE); |
e43c066c | 568 | itsTracks.AddLast(t); |
628e7bb0 | 569 | fOriginal.AddLast(t); |
e43c066c | 570 | } |
571 | } /* End Read ESD tracks */ | |
572 | ||
573 | itsTracks.Sort(); | |
628e7bb0 | 574 | fOriginal.Sort(); |
e43c066c | 575 | Int_t nentr=itsTracks.GetEntriesFast(); |
576 | fTrackHypothesys.Expand(nentr); | |
81e97e0d | 577 | fBestHypothesys.Expand(nentr); |
afd25725 | 578 | MakeCoefficients(nentr); |
513ab112 | 579 | if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(event->GetNumberOfTracks()); |
e43c066c | 580 | Int_t ntrk=0; |
afd25725 | 581 | // THE TWO TRACKING PASSES |
e43c066c | 582 | for (fPass=0; fPass<2; fPass++) { |
583 | Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue; | |
e50912db | 584 | for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) { |
e50912db | 585 | AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack); |
e43c066c | 586 | if (t==0) continue; //this track has been already tracked |
1c97ce2f | 587 | //cout<<"========== "<<fPass<<" "<<fCurrentEsdTrack<<" =========\n"; |
b9671574 | 588 | if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed |
791f9a2a | 589 | Float_t dz[2]; t->GetDZ(GetX(),GetY(),GetZ(),dz); //I.B. |
afd25725 | 590 | if (fConstraint[fPass]) { |
591 | if (TMath::Abs(dz[0])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint() || | |
592 | TMath::Abs(dz[1])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint()) continue; | |
593 | } | |
e43c066c | 594 | |
595 | Int_t tpcLabel=t->GetLabel(); //save the TPC track label | |
4187a601 | 596 | AliDebug(2,Form("LABEL %d pass %d",tpcLabel,fPass)); |
e43c066c | 597 | fI = 6; |
598 | ResetTrackToFollow(*t); | |
599 | ResetBestTrack(); | |
6518a6c5 | 600 | |
e50912db | 601 | FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]); |
1c97ce2f | 602 | |
e43c066c | 603 | |
604 | SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change | |
605 | // | |
ae00569a | 606 | AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15); |
e43c066c | 607 | if (!besttrack) continue; |
608 | besttrack->SetLabel(tpcLabel); | |
609 | // besttrack->CookdEdx(); | |
610 | CookdEdx(besttrack); | |
b9671574 | 611 | besttrack->SetFakeRatio(1.); |
e43c066c | 612 | CookLabel(besttrack,0.); //For comparison only |
e43c066c | 613 | UpdateESDtrack(besttrack,AliESDtrack::kITSin); |
628e7bb0 | 614 | |
628e7bb0 | 615 | if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain |
616 | ||
b9671574 | 617 | t->SetReconstructed(kTRUE); |
1c97ce2f | 618 | ntrk++; |
4187a601 | 619 | AliDebug(2,Form("TRACK! (label %d) ncls %d",besttrack->GetLabel(),besttrack->GetNumberOfClusters())); |
e43c066c | 620 | } |
621 | GetBestHypothesysMIP(itsTracks); | |
afd25725 | 622 | } // end loop on the two tracking passes |
e43c066c | 623 | |
cd90f0a2 | 624 | if(event->GetNumberOfV0s()>0) AliITSV0Finder::UpdateTPCV0(event,this); |
625 | if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::FindV02(event,this); | |
628e7bb0 | 626 | fAfterV0 = kTRUE; |
628e7bb0 | 627 | // |
e43c066c | 628 | itsTracks.Delete(); |
629 | // | |
630 | Int_t entries = fTrackHypothesys.GetEntriesFast(); | |
e50912db | 631 | for (Int_t ientry=0; ientry<entries; ientry++) { |
e43c066c | 632 | TObjArray * array =(TObjArray*)fTrackHypothesys.UncheckedAt(ientry); |
633 | if (array) array->Delete(); | |
634 | delete fTrackHypothesys.RemoveAt(ientry); | |
635 | } | |
636 | ||
637 | fTrackHypothesys.Delete(); | |
81e97e0d | 638 | fBestHypothesys.Delete(); |
628e7bb0 | 639 | fOriginal.Clear(); |
afd25725 | 640 | delete [] fCoefficients; |
641 | fCoefficients=0; | |
e50912db | 642 | DeleteTrksMaterialLUT(); |
643 | ||
75a74b11 | 644 | AliInfo(Form("Number of prolonged tracks: %d out of %d ESD tracks",ntrk,noesd)); |
e50912db | 645 | |
646 | fTrackingPhase="Default"; | |
628e7bb0 | 647 | |
e43c066c | 648 | return 0; |
649 | } | |
44347160 | 650 | //------------------------------------------------------------------------ |
af885e0f | 651 | Int_t AliITStrackerMI::PropagateBack(AliESDEvent *event) { |
e43c066c | 652 | //-------------------------------------------------------------------- |
653 | // This functions propagates reconstructed ITS tracks back | |
654 | // The clusters must be loaded ! | |
655 | //-------------------------------------------------------------------- | |
e50912db | 656 | fTrackingPhase="PropagateBack"; |
e43c066c | 657 | Int_t nentr=event->GetNumberOfTracks(); |
75a74b11 | 658 | // Info("PropagateBack", "Number of ESD tracks: %d\n", nentr); |
e43c066c | 659 | |
660 | Int_t ntrk=0; | |
661 | for (Int_t i=0; i<nentr; i++) { | |
662 | AliESDtrack *esd=event->GetTrack(i); | |
663 | ||
664 | if ((esd->GetStatus()&AliESDtrack::kITSin)==0) continue; | |
665 | if (esd->GetStatus()&AliESDtrack::kITSout) continue; | |
666 | ||
15dd636f | 667 | AliITStrackMI *t=0; |
e43c066c | 668 | try { |
15dd636f | 669 | t=new AliITStrackMI(*esd); |
e43c066c | 670 | } catch (const Char_t *msg) { |
628e7bb0 | 671 | //Warning("PropagateBack",msg); |
e43c066c | 672 | delete t; |
673 | continue; | |
674 | } | |
b9671574 | 675 | t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.)); |
e43c066c | 676 | |
677 | ResetTrackToFollow(*t); | |
4fa7f7d1 | 678 | |
67178f34 | 679 | /* |
9a5326b1 | 680 | // propagate to vertex [SR, GSI 17.02.2003] |
e43c066c | 681 | // Start Time measurement [SR, GSI 17.02.2003], corrected by I.Belikov |
e50912db | 682 | if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) { |
683 | if (fTrackToFollow.PropagateToVertex(event->GetVertex())) | |
684 | fTrackToFollow.StartTimeIntegral(); | |
685 | // from vertex to outside pipe | |
686 | CorrectForPipeMaterial(&fTrackToFollow,"outward"); | |
67178f34 | 687 | }*/ |
688 | // Start time integral and add distance from current position to vertex | |
689 | Double_t xyzTrk[3],xyzVtx[3]={GetX(),GetY(),GetZ()}; | |
690 | fTrackToFollow.GetXYZ(xyzTrk); | |
691 | Double_t dst2 = 0.; | |
692 | for (Int_t icoord=0; icoord<3; icoord++) { | |
693 | Double_t di = xyzTrk[icoord] - xyzVtx[icoord]; | |
694 | dst2 += di*di; | |
e43c066c | 695 | } |
67178f34 | 696 | fTrackToFollow.StartTimeIntegral(); |
697 | fTrackToFollow.AddTimeStep(TMath::Sqrt(dst2)); | |
e43c066c | 698 | |
6c94f330 | 699 | fTrackToFollow.ResetCovariance(10.); fTrackToFollow.ResetClusters(); |
e50912db | 700 | if (RefitAt(AliITSRecoParam::GetrInsideITSscreen(),&fTrackToFollow,t)) { |
701 | if (!CorrectForTPCtoITSDeadZoneMaterial(&fTrackToFollow)) { | |
e43c066c | 702 | delete t; |
703 | continue; | |
704 | } | |
705 | fTrackToFollow.SetLabel(t->GetLabel()); | |
706 | //fTrackToFollow.CookdEdx(); | |
707 | CookLabel(&fTrackToFollow,0.); //For comparison only | |
708 | fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSout); | |
709 | //UseClusters(&fTrackToFollow); | |
710 | ntrk++; | |
711 | } | |
712 | delete t; | |
713 | } | |
714 | ||
75a74b11 | 715 | AliInfo(Form("Number of back propagated ITS tracks: %d out of %d ESD tracks",ntrk,nentr)); |
e43c066c | 716 | |
e50912db | 717 | fTrackingPhase="Default"; |
718 | ||
e43c066c | 719 | return 0; |
720 | } | |
44347160 | 721 | //------------------------------------------------------------------------ |
af885e0f | 722 | Int_t AliITStrackerMI::RefitInward(AliESDEvent *event) { |
e43c066c | 723 | //-------------------------------------------------------------------- |
724 | // This functions refits ITS tracks using the | |
725 | // "inward propagated" TPC tracks | |
726 | // The clusters must be loaded ! | |
727 | //-------------------------------------------------------------------- | |
e50912db | 728 | fTrackingPhase="RefitInward"; |
44396017 | 729 | |
cd90f0a2 | 730 | if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::RefitV02(event,this); |
44396017 | 731 | |
e43c066c | 732 | Int_t nentr=event->GetNumberOfTracks(); |
75a74b11 | 733 | // Info("RefitInward", "Number of ESD tracks: %d\n", nentr); |
e43c066c | 734 | |
735 | Int_t ntrk=0; | |
736 | for (Int_t i=0; i<nentr; i++) { | |
737 | AliESDtrack *esd=event->GetTrack(i); | |
738 | ||
739 | if ((esd->GetStatus()&AliESDtrack::kITSout) == 0) continue; | |
740 | if (esd->GetStatus()&AliESDtrack::kITSrefit) continue; | |
741 | if (esd->GetStatus()&AliESDtrack::kTPCout) | |
742 | if ((esd->GetStatus()&AliESDtrack::kTPCrefit)==0) continue; | |
743 | ||
15dd636f | 744 | AliITStrackMI *t=0; |
e43c066c | 745 | try { |
15dd636f | 746 | t=new AliITStrackMI(*esd); |
e43c066c | 747 | } catch (const Char_t *msg) { |
628e7bb0 | 748 | //Warning("RefitInward",msg); |
e43c066c | 749 | delete t; |
750 | continue; | |
751 | } | |
b9671574 | 752 | t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.)); |
e50912db | 753 | if (!CorrectForTPCtoITSDeadZoneMaterial(t)) { |
e43c066c | 754 | delete t; |
755 | continue; | |
756 | } | |
757 | ||
758 | ResetTrackToFollow(*t); | |
759 | fTrackToFollow.ResetClusters(); | |
760 | ||
761 | if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) | |
6c94f330 | 762 | fTrackToFollow.ResetCovariance(10.); |
e43c066c | 763 | |
764 | //Refitting... | |
58e8dc31 | 765 | Bool_t pe=(AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() && |
766 | AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0); | |
1a64bda6 | 767 | |
4187a601 | 768 | AliDebug(2,Form("Refit LABEL %d %d",t->GetLabel(),t->GetNumberOfClusters())); |
7167ae53 | 769 | if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) { |
4187a601 | 770 | AliDebug(2," refit OK"); |
e43c066c | 771 | fTrackToFollow.SetLabel(t->GetLabel()); |
772 | // fTrackToFollow.CookdEdx(); | |
773 | CookdEdx(&fTrackToFollow); | |
774 | ||
775 | CookLabel(&fTrackToFollow,0.0); //For comparison only | |
776 | ||
9a5326b1 | 777 | //The beam pipe |
e50912db | 778 | if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) { |
ae00569a | 779 | fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSrefit); |
9a5326b1 | 780 | AliESDtrack *esdTrack =fTrackToFollow.GetESDtrack(); |
ae00569a | 781 | //printf(" %d\n",esdTrack->GetITSModuleIndex(0)); |
782 | //esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit); //original line | |
f7a1cc68 | 783 | Double_t r[3]={0.,0.,0.}; |
9a5326b1 | 784 | Double_t maxD=3.; |
785 | esdTrack->RelateToVertex(event->GetVertex(),GetBz(r),maxD); | |
786 | ntrk++; | |
e43c066c | 787 | } |
788 | } | |
789 | delete t; | |
790 | } | |
791 | ||
75a74b11 | 792 | AliInfo(Form("Number of refitted tracks: %d out of %d ESD tracks",ntrk,nentr)); |
e43c066c | 793 | |
e50912db | 794 | fTrackingPhase="Default"; |
795 | ||
e43c066c | 796 | return 0; |
797 | } | |
44347160 | 798 | //------------------------------------------------------------------------ |
e43c066c | 799 | AliCluster *AliITStrackerMI::GetCluster(Int_t index) const { |
800 | //-------------------------------------------------------------------- | |
801 | // Return pointer to a given cluster | |
802 | //-------------------------------------------------------------------- | |
803 | Int_t l=(index & 0xf0000000) >> 28; | |
804 | Int_t c=(index & 0x0fffffff) >> 00; | |
805 | return fgLayers[l].GetCluster(c); | |
806 | } | |
9a5326b1 | 807 | //------------------------------------------------------------------------ |
df29e9a4 | 808 | Bool_t AliITStrackerMI::GetTrackPoint(Int_t index, AliTrackPoint& p) const { |
9a5326b1 | 809 | //-------------------------------------------------------------------- |
df29e9a4 | 810 | // Get track space point with index i |
9a5326b1 | 811 | //-------------------------------------------------------------------- |
60066577 | 812 | |
78b03929 | 813 | Int_t l=(index & 0xf0000000) >> 28; |
814 | Int_t c=(index & 0x0fffffff) >> 00; | |
00a7cc50 | 815 | AliITSRecPoint *cl = fgLayers[l].GetCluster(c); |
df29e9a4 | 816 | Int_t idet = cl->GetDetectorIndex(); |
4e65ff9e | 817 | |
60066577 | 818 | Float_t xyz[3]; |
819 | Float_t cov[6]; | |
820 | cl->GetGlobalXYZ(xyz); | |
821 | cl->GetGlobalCov(cov); | |
822 | p.SetXYZ(xyz, cov); | |
be77c8c9 | 823 | p.SetCharge(cl->GetQ()); |
ebbcf1ea | 824 | p.SetDriftTime(cl->GetDriftTime()); |
b7bcc8ed | 825 | p.SetChargeRatio(cl->GetChargeRatio()); |
e3901fd8 | 826 | p.SetClusterType(cl->GetClusterType()); |
ae079791 | 827 | AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer; |
df29e9a4 | 828 | switch (l) { |
829 | case 0: | |
ae079791 | 830 | iLayer = AliGeomManager::kSPD1; |
df29e9a4 | 831 | break; |
832 | case 1: | |
ae079791 | 833 | iLayer = AliGeomManager::kSPD2; |
df29e9a4 | 834 | break; |
835 | case 2: | |
ae079791 | 836 | iLayer = AliGeomManager::kSDD1; |
df29e9a4 | 837 | break; |
838 | case 3: | |
ae079791 | 839 | iLayer = AliGeomManager::kSDD2; |
9a5326b1 | 840 | break; |
841 | case 4: | |
842 | iLayer = AliGeomManager::kSSD1; | |
843 | break; | |
844 | case 5: | |
845 | iLayer = AliGeomManager::kSSD2; | |
846 | break; | |
847 | default: | |
848 | AliWarning(Form("Wrong layer index in ITS (%d) !",l)); | |
849 | break; | |
850 | }; | |
851 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet); | |
852 | p.SetVolumeID((UShort_t)volid); | |
853 | return kTRUE; | |
854 | } | |
855 | //------------------------------------------------------------------------ | |
856 | Bool_t AliITStrackerMI::GetTrackPointTrackingError(Int_t index, | |
857 | AliTrackPoint& p, const AliESDtrack *t) { | |
858 | //-------------------------------------------------------------------- | |
859 | // Get track space point with index i | |
860 | // (assign error estimated during the tracking) | |
861 | //-------------------------------------------------------------------- | |
862 | ||
863 | Int_t l=(index & 0xf0000000) >> 28; | |
864 | Int_t c=(index & 0x0fffffff) >> 00; | |
865 | const AliITSRecPoint *cl = fgLayers[l].GetCluster(c); | |
866 | Int_t idet = cl->GetDetectorIndex(); | |
4187a601 | 867 | |
9a5326b1 | 868 | const AliITSdetector &det=fgLayers[l].GetDetector(idet); |
869 | ||
870 | // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi | |
871 | Float_t detxy[2]; | |
872 | detxy[0] = det.GetR()*TMath::Cos(det.GetPhi()); | |
873 | detxy[1] = det.GetR()*TMath::Sin(det.GetPhi()); | |
874 | Double_t alpha = t->GetAlpha(); | |
875 | Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha); | |
9be1d1c7 | 876 | Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe,GetBz())); |
9a5326b1 | 877 | phi += alpha-det.GetPhi(); |
878 | Float_t tgphi = TMath::Tan(phi); | |
879 | ||
880 | Float_t tgl = t->GetTgl(); // tgl about const along track | |
881 | Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.); | |
882 | ||
d9ead1a0 | 883 | Float_t errtrky,errtrkz,covyz; |
8c139cf3 | 884 | Bool_t addMisalErr=kFALSE; |
d9ead1a0 | 885 | AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errtrky,errtrkz,covyz,addMisalErr); |
9a5326b1 | 886 | |
887 | Float_t xyz[3]; | |
888 | Float_t cov[6]; | |
889 | cl->GetGlobalXYZ(xyz); | |
890 | // cl->GetGlobalCov(cov); | |
891 | Float_t pos[3] = {0.,0.,0.}; | |
d9ead1a0 | 892 | AliCluster tmpcl((UShort_t)cl->GetVolumeId(),pos[0],pos[1],pos[2],errtrky*errtrky,errtrkz*errtrkz,covyz); |
9a5326b1 | 893 | tmpcl.GetGlobalCov(cov); |
894 | ||
895 | p.SetXYZ(xyz, cov); | |
be77c8c9 | 896 | p.SetCharge(cl->GetQ()); |
ebbcf1ea | 897 | p.SetDriftTime(cl->GetDriftTime()); |
b7bcc8ed | 898 | p.SetChargeRatio(cl->GetChargeRatio()); |
e3901fd8 | 899 | p.SetClusterType(cl->GetClusterType()); |
9a5326b1 | 900 | |
901 | AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer; | |
902 | switch (l) { | |
903 | case 0: | |
904 | iLayer = AliGeomManager::kSPD1; | |
905 | break; | |
906 | case 1: | |
907 | iLayer = AliGeomManager::kSPD2; | |
908 | break; | |
909 | case 2: | |
910 | iLayer = AliGeomManager::kSDD1; | |
911 | break; | |
912 | case 3: | |
913 | iLayer = AliGeomManager::kSDD2; | |
df29e9a4 | 914 | break; |
915 | case 4: | |
ae079791 | 916 | iLayer = AliGeomManager::kSSD1; |
df29e9a4 | 917 | break; |
918 | case 5: | |
ae079791 | 919 | iLayer = AliGeomManager::kSSD2; |
df29e9a4 | 920 | break; |
921 | default: | |
922 | AliWarning(Form("Wrong layer index in ITS (%d) !",l)); | |
923 | break; | |
924 | }; | |
ae079791 | 925 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet); |
4187a601 | 926 | |
df29e9a4 | 927 | p.SetVolumeID((UShort_t)volid); |
928 | return kTRUE; | |
929 | } | |
44347160 | 930 | //------------------------------------------------------------------------ |
81e97e0d | 931 | void AliITStrackerMI::FollowProlongationTree(AliITStrackMI * otrack, Int_t esdindex, Bool_t constrain) |
e43c066c | 932 | { |
933 | //-------------------------------------------------------------------- | |
934 | // Follow prolongation tree | |
935 | //-------------------------------------------------------------------- | |
81e97e0d | 936 | // |
afd25725 | 937 | Double_t xyzVtx[]={GetX(),GetY(),GetZ()}; |
938 | Double_t ersVtx[]={GetSigmaX(),GetSigmaY(),GetSigmaZ()}; | |
939 | ||
2755f080 | 940 | |
b9671574 | 941 | AliESDtrack * esd = otrack->GetESDtrack(); |
afd25725 | 942 | if (esd->GetV0Index(0)>0) { |
81e97e0d | 943 | // TEMPORARY SOLLUTION: map V0 indexes to point to proper track |
afd25725 | 944 | // mapping of ESD track is different as ITS track in Containers |
81e97e0d | 945 | // Need something more stable |
44347160 | 946 | // Indexes are set back again to the ESD track indexes in UpdateTPCV0 |
81e97e0d | 947 | for (Int_t i=0;i<3;i++){ |
948 | Int_t index = esd->GetV0Index(i); | |
949 | if (index==0) break; | |
d6a49f20 | 950 | AliESDv0 * vertex = fEsd->GetV0(index); |
81e97e0d | 951 | if (vertex->GetStatus()<0) continue; // rejected V0 |
952 | // | |
afd25725 | 953 | if (esd->GetSign()>0) { |
954 | vertex->SetIndex(0,esdindex); | |
955 | } else { | |
956 | vertex->SetIndex(1,esdindex); | |
957 | } | |
81e97e0d | 958 | } |
959 | } | |
960 | TObjArray *bestarray = (TObjArray*)fBestHypothesys.At(esdindex); | |
961 | if (!bestarray){ | |
962 | bestarray = new TObjArray(5); | |
963 | fBestHypothesys.AddAt(bestarray,esdindex); | |
964 | } | |
e43c066c | 965 | |
81e97e0d | 966 | // |
e43c066c | 967 | //setup tree of the prolongations |
968 | // | |
15dd636f | 969 | static AliITStrackMI tracks[7][100]; |
970 | AliITStrackMI *currenttrack; | |
971 | static AliITStrackMI currenttrack1; | |
972 | static AliITStrackMI currenttrack2; | |
973 | static AliITStrackMI backuptrack; | |
e43c066c | 974 | Int_t ntracks[7]; |
975 | Int_t nindexes[7][100]; | |
976 | Float_t normalizedchi2[100]; | |
977 | for (Int_t ilayer=0;ilayer<6;ilayer++) ntracks[ilayer]=0; | |
b9671574 | 978 | otrack->SetNSkipped(0); |
15dd636f | 979 | new (&(tracks[6][0])) AliITStrackMI(*otrack); |
e43c066c | 980 | ntracks[6]=1; |
81e97e0d | 981 | for (Int_t i=0;i<7;i++) nindexes[i][0]=0; |
ae00569a | 982 | Int_t modstatus = 1; // found |
983 | Float_t xloc,zloc; | |
e43c066c | 984 | // |
985 | // | |
986 | // follow prolongations | |
e50912db | 987 | for (Int_t ilayer=5; ilayer>=0; ilayer--) { |
4187a601 | 988 | AliDebug(2,Form("FollowProlongationTree: layer %d",ilayer)); |
2755f080 | 989 | fI = ilayer; |
e43c066c | 990 | // |
2755f080 | 991 | AliITSlayer &layer=fgLayers[ilayer]; |
992 | Double_t r = layer.GetR(); | |
e43c066c | 993 | ntracks[ilayer]=0; |
994 | // | |
995 | // | |
2755f080 | 996 | Int_t nskipped=0; |
e43c066c | 997 | Float_t nused =0; |
e50912db | 998 | for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) { |
e43c066c | 999 | //set current track |
1000 | if (ntracks[ilayer]>=100) break; | |
b9671574 | 1001 | if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0) nskipped++; |
1002 | if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2.) nused++; | |
e43c066c | 1003 | if (ntracks[ilayer]>15+ilayer){ |
b9671574 | 1004 | if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0 && nskipped>4+ilayer) continue; |
1005 | if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2. && nused>3) continue; | |
e43c066c | 1006 | } |
1007 | ||
15dd636f | 1008 | new(¤ttrack1) AliITStrackMI(tracks[ilayer+1][nindexes[ilayer+1][itrack]]); |
44347160 | 1009 | |
afd25725 | 1010 | // material between SSD and SDD, SDD and SPD |
e50912db | 1011 | if (ilayer==3) |
1012 | if(!CorrectForShieldMaterial(¤ttrack1,"SDD","inward")) continue; | |
1013 | if (ilayer==1) | |
1014 | if(!CorrectForShieldMaterial(¤ttrack1,"SPD","inward")) continue; | |
8602c008 | 1015 | |
2755f080 | 1016 | // detector number |
8602c008 | 1017 | Double_t phi,z; |
1018 | if (!currenttrack1.GetPhiZat(r,phi,z)) continue; | |
e43c066c | 1019 | Int_t idet=layer.FindDetectorIndex(phi,z); |
e50912db | 1020 | |
1021 | Double_t trackGlobXYZ1[3]; | |
d1181f10 | 1022 | if (!currenttrack1.GetXYZ(trackGlobXYZ1)) continue; |
e50912db | 1023 | |
2755f080 | 1024 | // Get the budget to the primary vertex for the current track being prolonged |
1025 | Double_t budgetToPrimVertex = GetEffectiveThickness(); | |
1026 | ||
1027 | // check if we allow a prolongation without point | |
6518a6c5 | 1028 | Int_t skip = CheckSkipLayer(¤ttrack1,ilayer,idet); |
2755f080 | 1029 | if (skip) { |
1030 | AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1); | |
6518a6c5 | 1031 | // propagate to the layer radius |
d1181f10 | 1032 | Double_t xToGo; if (!vtrack->GetLocalXat(r,xToGo)) continue; |
9be1d1c7 | 1033 | if(!vtrack->Propagate(xToGo)) continue; |
2755f080 | 1034 | // apply correction for material of the current layer |
1035 | CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward"); | |
1036 | vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1); | |
f8720bda | 1037 | vtrack->SetDeadZoneProbability(ilayer,1.); // no penalty for missing cluster |
9fd412a8 | 1038 | vtrack->SetClIndex(ilayer,-1); |
ae00569a | 1039 | modstatus = (skip==1 ? 3 : 4); // skipped : out in z |
d1181f10 | 1040 | if(LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc)) { // local module coords |
1041 | vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
1042 | } | |
2755f080 | 1043 | if(constrain) vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); |
1044 | ntracks[ilayer]++; | |
6518a6c5 | 1045 | continue; |
2755f080 | 1046 | } |
1047 | ||
1048 | // track outside layer acceptance in z | |
1049 | if (idet<0) continue; | |
1050 | ||
1051 | //propagate to the intersection with the detector plane | |
1052 | const AliITSdetector &det=layer.GetDetector(idet); | |
1053 | new(¤ttrack2) AliITStrackMI(currenttrack1); | |
44347160 | 1054 | if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue; |
d1181f10 | 1055 | if (!currenttrack2.Propagate(det.GetPhi(),det.GetR())) continue; |
e43c066c | 1056 | currenttrack1.SetDetectorIndex(idet); |
1057 | currenttrack2.SetDetectorIndex(idet); | |
d1181f10 | 1058 | if(!LocalModuleCoord(ilayer,idet,¤ttrack1,xloc,zloc)) continue; // local module coords |
6518a6c5 | 1059 | |
afd25725 | 1060 | //*************** |
1c97ce2f | 1061 | // DEFINITION OF SEARCH ROAD AND CLUSTERS SELECTION |
e43c066c | 1062 | // |
2755f080 | 1063 | // road in global (rphi,z) [i.e. in tracking ref. system] |
1c97ce2f | 1064 | Double_t zmin,zmax,ymin,ymax; |
1065 | if (!ComputeRoad(¤ttrack1,ilayer,idet,zmin,zmax,ymin,ymax)) continue; | |
2755f080 | 1066 | |
afd25725 | 1067 | // select clusters in road |
e43c066c | 1068 | layer.SelectClusters(zmin,zmax,ymin,ymax); |
afd25725 | 1069 | //******************** |
44347160 | 1070 | |
afd25725 | 1071 | // Define criteria for track-cluster association |
44347160 | 1072 | Double_t msz = currenttrack1.GetSigmaZ2() + |
1073 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1074 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1075 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer); | |
1076 | Double_t msy = currenttrack1.GetSigmaY2() + | |
1077 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1078 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1079 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer); | |
1080 | if (constrain) { | |
1081 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC(); | |
1082 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC(); | |
1083 | } else { | |
1084 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC(); | |
1085 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC(); | |
1086 | } | |
1087 | msz = 1./msz; // 1/RoadZ^2 | |
1088 | msy = 1./msy; // 1/RoadY^2 | |
1c97ce2f | 1089 | |
e43c066c | 1090 | // |
e43c066c | 1091 | // |
afd25725 | 1092 | // LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER |
e43c066c | 1093 | // |
afd25725 | 1094 | const AliITSRecPoint *cl=0; |
1095 | Int_t clidx=-1; | |
1096 | Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value | |
6518a6c5 | 1097 | Bool_t deadzoneSPD=kFALSE; |
e43c066c | 1098 | currenttrack = ¤ttrack1; |
6518a6c5 | 1099 | |
ae00569a | 1100 | // check if the road contains a dead zone |
23197852 | 1101 | Bool_t noClusters = kFALSE; |
1102 | if (!layer.GetNextCluster(clidx,kTRUE)) noClusters=kTRUE; | |
4187a601 | 1103 | if (noClusters) AliDebug(2,"no clusters in road"); |
1c97ce2f | 1104 | Double_t dz=0.5*(zmax-zmin); |
1105 | Double_t dy=0.5*(ymax-ymin); | |
1106 | Int_t dead = CheckDeadZone(¤ttrack1,ilayer,idet,dz,dy,noClusters); | |
4187a601 | 1107 | if(dead) AliDebug(2,Form("DEAD (%d)\n",dead)); |
ae00569a | 1108 | // create a prolongation without clusters (check also if there are no clusters in the road) |
1109 | if (dead || | |
23197852 | 1110 | (noClusters && |
ae00569a | 1111 | AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) { |
6518a6c5 | 1112 | AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack); |
9fd412a8 | 1113 | updatetrack->SetClIndex(ilayer,-1); |
ae00569a | 1114 | if (dead==0) { |
1115 | modstatus = 5; // no cls in road | |
1116 | } else if (dead==1) { | |
1117 | modstatus = 7; // holes in z in SPD | |
f8720bda | 1118 | } else if (dead==2 || dead==3 || dead==4) { |
ae00569a | 1119 | modstatus = 2; // dead from OCDB |
1120 | } | |
1121 | updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
6518a6c5 | 1122 | // apply correction for material of the current layer |
1123 | CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward"); | |
1124 | if (constrain) { // apply vertex constrain | |
1125 | updatetrack->SetConstrain(constrain); | |
1126 | Bool_t isPrim = kTRUE; | |
1127 | if (ilayer<4) { // check that it's close to the vertex | |
1128 | updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B. | |
1129 | if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y | |
1130 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() || | |
1131 | TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z | |
1132 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE; | |
1133 | } | |
1134 | if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); | |
1135 | } | |
f8720bda | 1136 | updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1); |
ae00569a | 1137 | if (dead) { |
ae00569a | 1138 | if (dead==1) { // dead zone at z=0,+-7cm in SPD |
f8720bda | 1139 | updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2()))); |
ae00569a | 1140 | deadzoneSPD=kTRUE; |
f8720bda | 1141 | } else if (dead==2 || dead==3) { // dead module or chip from OCDB |
1142 | updatetrack->SetDeadZoneProbability(ilayer,1.); | |
1143 | } else if (dead==4) { // at least a single dead channel from OCDB | |
1144 | updatetrack->SetDeadZoneProbability(ilayer,0.); | |
1145 | } | |
6518a6c5 | 1146 | } |
1147 | ntracks[ilayer]++; | |
1148 | } | |
1149 | ||
ae00569a | 1150 | clidx=-1; |
6518a6c5 | 1151 | // loop over clusters in the road |
afd25725 | 1152 | while ((cl=layer.GetNextCluster(clidx))!=0) { |
e43c066c | 1153 | if (ntracks[ilayer]>95) break; //space for skipped clusters |
afd25725 | 1154 | Bool_t changedet =kFALSE; |
6518a6c5 | 1155 | if (cl->GetQ()==0 && deadzoneSPD==kTRUE) continue; |
a5d0fae6 | 1156 | Int_t idetc=cl->GetDetectorIndex(); |
afd25725 | 1157 | |
a5d0fae6 | 1158 | if (currenttrack->GetDetectorIndex()==idetc) { // track already on the cluster's detector |
1c97ce2f | 1159 | // take into account misalignment (bring track to real detector plane) |
1160 | Double_t xTrOrig = currenttrack->GetX(); | |
9be1d1c7 | 1161 | if (!currenttrack->Propagate(xTrOrig+cl->GetX())) continue; |
afd25725 | 1162 | // a first cut on track-cluster distance |
1163 | if ( (currenttrack->GetZ()-cl->GetZ())*(currenttrack->GetZ()-cl->GetZ())*msz + | |
1164 | (currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. ) | |
1c97ce2f | 1165 | { // cluster not associated to track |
4187a601 | 1166 | AliDebug(2,"not associated"); |
1c97ce2f | 1167 | continue; |
1168 | } | |
1169 | // bring track back to ideal detector plane | |
9be1d1c7 | 1170 | if (!currenttrack->Propagate(xTrOrig)) continue; |
afd25725 | 1171 | } else { // have to move track to cluster's detector |
a5d0fae6 | 1172 | const AliITSdetector &detc=layer.GetDetector(idetc); |
afd25725 | 1173 | // a first cut on track-cluster distance |
a5d0fae6 | 1174 | Double_t y; |
1c97ce2f | 1175 | if (!currenttrack2.GetProlongationFast(detc.GetPhi(),detc.GetR()+cl->GetX(),y,z)) continue; |
afd25725 | 1176 | if ( (z-cl->GetZ())*(z-cl->GetZ())*msz + |
1177 | (y-cl->GetY())*(y-cl->GetY())*msy > 1. ) | |
44347160 | 1178 | continue; // cluster not associated to track |
e43c066c | 1179 | // |
15dd636f | 1180 | new (&backuptrack) AliITStrackMI(currenttrack2); |
afd25725 | 1181 | changedet = kTRUE; |
e43c066c | 1182 | currenttrack =¤ttrack2; |
a5d0fae6 | 1183 | if (!currenttrack->Propagate(detc.GetPhi(),detc.GetR())) { |
15dd636f | 1184 | new (currenttrack) AliITStrackMI(backuptrack); |
afd25725 | 1185 | changedet = kFALSE; |
e43c066c | 1186 | continue; |
1187 | } | |
a5d0fae6 | 1188 | currenttrack->SetDetectorIndex(idetc); |
e50912db | 1189 | // Get again the budget to the primary vertex |
1190 | // for the current track being prolonged, if had to change detector | |
1191 | //budgetToPrimVertex = GetEffectiveThickness();// not needed at the moment because anyway we take a mean material for this correction | |
e43c066c | 1192 | } |
1193 | ||
afd25725 | 1194 | // calculate track-clusters chi2 |
1195 | chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer); | |
1196 | // chi2 cut | |
4187a601 | 1197 | AliDebug(2,Form("chi2 %f max %f",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer))); |
afd25725 | 1198 | if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) { |
6518a6c5 | 1199 | if (cl->GetQ()==0) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster |
e43c066c | 1200 | if (ntracks[ilayer]>=100) continue; |
15dd636f | 1201 | AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack); |
9fd412a8 | 1202 | updatetrack->SetClIndex(ilayer,-1); |
afd25725 | 1203 | if (changedet) new (¤ttrack2) AliITStrackMI(backuptrack); |
ae00569a | 1204 | |
6518a6c5 | 1205 | if (cl->GetQ()!=0) { // real cluster |
1c97ce2f | 1206 | if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) { |
4187a601 | 1207 | AliDebug(2,"update failed"); |
1c97ce2f | 1208 | continue; |
1209 | } | |
09cf9d66 | 1210 | updatetrack->SetSampledEdx(cl->GetQ(),ilayer-2); |
ae00569a | 1211 | modstatus = 1; // found |
6518a6c5 | 1212 | } else { // virtual cluster in dead zone |
b9671574 | 1213 | updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1); |
f8720bda | 1214 | updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2()))); |
ae00569a | 1215 | modstatus = 7; // holes in z in SPD |
1216 | } | |
1217 | ||
1218 | if (changedet) { | |
1219 | Float_t xlocnewdet,zlocnewdet; | |
d1181f10 | 1220 | if(LocalModuleCoord(ilayer,idet,updatetrack,xlocnewdet,zlocnewdet)) { // local module coords |
1221 | updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xlocnewdet,zlocnewdet); | |
1222 | } | |
ae00569a | 1223 | } else { |
1224 | updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
e43c066c | 1225 | } |
afd25725 | 1226 | if (cl->IsUsed()) updatetrack->IncrementNUsed(); |
1227 | ||
1228 | // apply correction for material of the current layer | |
e50912db | 1229 | CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward"); |
1230 | ||
afd25725 | 1231 | if (constrain) { // apply vertex constrain |
b9671574 | 1232 | updatetrack->SetConstrain(constrain); |
e43c066c | 1233 | Bool_t isPrim = kTRUE; |
afd25725 | 1234 | if (ilayer<4) { // check that it's close to the vertex |
b9671574 | 1235 | updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B. |
afd25725 | 1236 | if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y |
1237 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() || | |
1238 | TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z | |
1239 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE; | |
e43c066c | 1240 | } |
afd25725 | 1241 | if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); |
e43c066c | 1242 | } //apply vertex constrain |
1243 | ntracks[ilayer]++; | |
afd25725 | 1244 | } // create new hypothesis |
4187a601 | 1245 | else { |
1246 | AliDebug(2,"chi2 too large"); | |
1247 | } | |
1248 | ||
2755f080 | 1249 | } // loop over possible prolongations |
1250 | ||
1251 | // allow one prolongation without clusters | |
6518a6c5 | 1252 | if (constrain && itrack<=1 && currenttrack1.GetNSkipped()==0 && deadzoneSPD==kFALSE && ntracks[ilayer]<100) { |
15dd636f | 1253 | AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1); |
2755f080 | 1254 | // apply correction for material of the current layer |
1255 | CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward"); | |
9fd412a8 | 1256 | vtrack->SetClIndex(ilayer,-1); |
ae00569a | 1257 | modstatus = 3; // skipped |
1258 | vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
afd25725 | 1259 | vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); |
b9671574 | 1260 | vtrack->IncrementNSkipped(); |
e43c066c | 1261 | ntracks[ilayer]++; |
1262 | } | |
1263 | ||
6262dd3d | 1264 | |
e50912db | 1265 | } // loop over tracks in layer ilayer+1 |
afd25725 | 1266 | |
1267 | //loop over track candidates for the current layer | |
e43c066c | 1268 | // |
1269 | // | |
1270 | Int_t accepted=0; | |
1271 | ||
afd25725 | 1272 | Int_t golden=0; |
e43c066c | 1273 | for (Int_t itrack=0;itrack<ntracks[ilayer];itrack++){ |
1274 | normalizedchi2[itrack] = NormalizedChi2(&tracks[ilayer][itrack],ilayer); | |
afd25725 | 1275 | if (normalizedchi2[itrack] < |
1276 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2ForGolden(ilayer)) golden++; | |
44347160 | 1277 | if (ilayer>4) { |
1278 | accepted++; | |
1279 | } else { | |
1280 | if (constrain) { // constrain | |
afd25725 | 1281 | if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2C(ilayer)+1) |
1282 | accepted++; | |
44347160 | 1283 | } else { // !constrain |
afd25725 | 1284 | if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonC(ilayer)+1) |
1285 | accepted++; | |
44347160 | 1286 | } |
e43c066c | 1287 | } |
1288 | } | |
afd25725 | 1289 | // sort tracks by increasing normalized chi2 |
1290 | TMath::Sort(ntracks[ilayer],normalizedchi2,nindexes[ilayer],kFALSE); | |
e43c066c | 1291 | ntracks[ilayer] = TMath::Min(accepted,7+2*ilayer); |
afd25725 | 1292 | if (ntracks[ilayer]<golden+2+ilayer) ntracks[ilayer]=TMath::Min(golden+2+ilayer,accepted); |
e43c066c | 1293 | if (ntracks[ilayer]>90) ntracks[ilayer]=90; |
afd25725 | 1294 | } // end loop over layers |
1295 | ||
afd25725 | 1296 | |
1297 | // | |
1298 | // Now select tracks to be kept | |
1299 | // | |
44347160 | 1300 | Int_t max = constrain ? 20 : 5; |
e43c066c | 1301 | |
afd25725 | 1302 | // tracks that reach layer 0 (SPD inner) |
44347160 | 1303 | for (Int_t i=0; i<TMath::Min(max,ntracks[0]); i++) { |
15dd636f | 1304 | AliITStrackMI & track= tracks[0][nindexes[0][i]]; |
628e7bb0 | 1305 | if (track.GetNumberOfClusters()<2) continue; |
afd25725 | 1306 | if (!constrain && track.GetNormChi2(0) > |
6518a6c5 | 1307 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) { |
1308 | continue; | |
1309 | } | |
15dd636f | 1310 | AddTrackHypothesys(new AliITStrackMI(track), esdindex); |
e43c066c | 1311 | } |
afd25725 | 1312 | |
1313 | // tracks that reach layer 1 (SPD outer) | |
628e7bb0 | 1314 | for (Int_t i=0;i<TMath::Min(2,ntracks[1]);i++) { |
15dd636f | 1315 | AliITStrackMI & track= tracks[1][nindexes[1][i]]; |
e43c066c | 1316 | if (track.GetNumberOfClusters()<4) continue; |
afd25725 | 1317 | if (!constrain && track.GetNormChi2(1) > |
1318 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue; | |
b9671574 | 1319 | if (constrain) track.IncrementNSkipped(); |
81e97e0d | 1320 | if (!constrain) { |
b9671574 | 1321 | track.SetD(0,track.GetD(GetX(),GetY())); |
afd25725 | 1322 | track.SetNSkipped(track.GetNSkipped()+4./(4.+8.*TMath::Abs(track.GetD(0)))); |
b9671574 | 1323 | if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) { |
1324 | track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone()); | |
e43c066c | 1325 | } |
1326 | } | |
15dd636f | 1327 | AddTrackHypothesys(new AliITStrackMI(track), esdindex); |
e43c066c | 1328 | } |
afd25725 | 1329 | |
6518a6c5 | 1330 | // tracks that reach layer 2 (SDD inner), only during non-constrained pass |
81e97e0d | 1331 | if (!constrain){ |
628e7bb0 | 1332 | for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) { |
15dd636f | 1333 | AliITStrackMI & track= tracks[2][nindexes[2][i]]; |
628e7bb0 | 1334 | if (track.GetNumberOfClusters()<3) continue; |
afd25725 | 1335 | if (!constrain && track.GetNormChi2(2) > |
1336 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue; | |
b9671574 | 1337 | if (constrain) track.SetNSkipped(track.GetNSkipped()+2); |
81e97e0d | 1338 | if (!constrain){ |
b9671574 | 1339 | track.SetD(0,track.GetD(GetX(),GetY())); |
afd25725 | 1340 | track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0)))); |
b9671574 | 1341 | if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) { |
1342 | track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone()); | |
e43c066c | 1343 | } |
1344 | } | |
15dd636f | 1345 | AddTrackHypothesys(new AliITStrackMI(track), esdindex); |
e43c066c | 1346 | } |
1347 | } | |
81e97e0d | 1348 | |
afd25725 | 1349 | if (!constrain) { |
81e97e0d | 1350 | // |
afd25725 | 1351 | // register best track of each layer - important for V0 finder |
81e97e0d | 1352 | // |
1353 | for (Int_t ilayer=0;ilayer<5;ilayer++){ | |
1354 | if (ntracks[ilayer]==0) continue; | |
1355 | AliITStrackMI & track= tracks[ilayer][nindexes[ilayer][0]]; | |
1356 | if (track.GetNumberOfClusters()<1) continue; | |
1357 | CookLabel(&track,0); | |
1358 | bestarray->AddAt(new AliITStrackMI(track),ilayer); | |
1359 | } | |
1360 | } | |
1361 | // | |
1362 | // update TPC V0 information | |
1363 | // | |
b9671574 | 1364 | if (otrack->GetESDtrack()->GetV0Index(0)>0){ |
81e97e0d | 1365 | Float_t fprimvertex[3]={GetX(),GetY(),GetZ()}; |
1366 | for (Int_t i=0;i<3;i++){ | |
b9671574 | 1367 | Int_t index = otrack->GetESDtrack()->GetV0Index(i); |
81e97e0d | 1368 | if (index==0) break; |
44347160 | 1369 | AliV0 *vertex = (AliV0*)fEsd->GetV0(index); |
81e97e0d | 1370 | if (vertex->GetStatus()<0) continue; // rejected V0 |
1371 | // | |
6c94f330 | 1372 | if (otrack->GetSign()>0) { |
81e97e0d | 1373 | vertex->SetIndex(0,esdindex); |
1374 | } | |
1375 | else{ | |
1376 | vertex->SetIndex(1,esdindex); | |
1377 | } | |
1378 | //find nearest layer with track info | |
b75d63a7 | 1379 | Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B. |
1380 | Int_t nearestold = GetNearestLayer(xrp); //I.B. | |
81e97e0d | 1381 | Int_t nearest = nearestold; |
1382 | for (Int_t ilayer =nearest;ilayer<8;ilayer++){ | |
1383 | if (ntracks[nearest]==0){ | |
1384 | nearest = ilayer; | |
1385 | } | |
1386 | } | |
1387 | // | |
1388 | AliITStrackMI & track= tracks[nearest][nindexes[nearest][0]]; | |
1389 | if (nearestold<5&&nearest<5){ | |
b9671574 | 1390 | Bool_t accept = track.GetNormChi2(nearest)<10; |
81e97e0d | 1391 | if (accept){ |
6c94f330 | 1392 | if (track.GetSign()>0) { |
b75d63a7 | 1393 | vertex->SetParamP(track); |
81e97e0d | 1394 | vertex->Update(fprimvertex); |
44347160 | 1395 | //vertex->SetIndex(0,track.fESDtrack->GetID()); |
81e97e0d | 1396 | if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex); |
1397 | }else{ | |
b75d63a7 | 1398 | vertex->SetParamN(track); |
81e97e0d | 1399 | vertex->Update(fprimvertex); |
1400 | //vertex->SetIndex(1,track.fESDtrack->GetID()); | |
1401 | if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex); | |
1402 | } | |
1403 | vertex->SetStatus(vertex->GetStatus()+1); | |
1404 | }else{ | |
44347160 | 1405 | //vertex->SetStatus(-2); // reject V0 - not enough clusters |
81e97e0d | 1406 | } |
1407 | } | |
81e97e0d | 1408 | } |
afd25725 | 1409 | } |
1410 | ||
e43c066c | 1411 | } |
44347160 | 1412 | //------------------------------------------------------------------------ |
e43c066c | 1413 | AliITStrackerMI::AliITSlayer & AliITStrackerMI::GetLayer(Int_t layer) const |
1414 | { | |
1415 | //-------------------------------------------------------------------- | |
1416 | // | |
1417 | // | |
1418 | return fgLayers[layer]; | |
1419 | } | |
44347160 | 1420 | //------------------------------------------------------------------------ |
8221b41b | 1421 | AliITStrackerMI::AliITSlayer::AliITSlayer(): |
1422 | fR(0), | |
1423 | fPhiOffset(0), | |
1424 | fNladders(0), | |
1425 | fZOffset(0), | |
1426 | fNdetectors(0), | |
1427 | fDetectors(0), | |
1428 | fN(0), | |
1429 | fDy5(0), | |
1430 | fDy10(0), | |
1431 | fDy20(0), | |
1432 | fClustersCs(0), | |
1433 | fClusterIndexCs(0), | |
1434 | fYcs(0), | |
1435 | fZcs(0), | |
1436 | fNcs(0), | |
1437 | fCurrentSlice(-1), | |
d9ead1a0 | 1438 | fZmin(0), |
8221b41b | 1439 | fZmax(0), |
1440 | fYmin(0), | |
1441 | fYmax(0), | |
1442 | fI(0), | |
1443 | fImax(0), | |
1444 | fSkip(0), | |
1445 | fAccepted(0), | |
d9ead1a0 | 1446 | fRoad(0), |
1447 | fMaxSigmaClY(0), | |
1448 | fMaxSigmaClZ(0), | |
1449 | fNMaxSigmaCl(3) | |
1450 | { | |
e43c066c | 1451 | //-------------------------------------------------------------------- |
1452 | //default AliITSlayer constructor | |
1453 | //-------------------------------------------------------------------- | |
e50912db | 1454 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) { |
e43c066c | 1455 | fClusterWeight[i]=0; |
1456 | fClusterTracks[0][i]=-1; | |
1457 | fClusterTracks[1][i]=-1; | |
1458 | fClusterTracks[2][i]=-1; | |
1459 | fClusterTracks[3][i]=-1; | |
1460 | } | |
1461 | } | |
44347160 | 1462 | //------------------------------------------------------------------------ |
e43c066c | 1463 | AliITStrackerMI::AliITSlayer:: |
8221b41b | 1464 | AliITSlayer(Double_t r,Double_t p,Double_t z,Int_t nl,Int_t nd): |
1465 | fR(r), | |
1466 | fPhiOffset(p), | |
1467 | fNladders(nl), | |
1468 | fZOffset(z), | |
1469 | fNdetectors(nd), | |
1470 | fDetectors(0), | |
1471 | fN(0), | |
1472 | fDy5(0), | |
1473 | fDy10(0), | |
1474 | fDy20(0), | |
1475 | fClustersCs(0), | |
1476 | fClusterIndexCs(0), | |
1477 | fYcs(0), | |
1478 | fZcs(0), | |
1479 | fNcs(0), | |
1480 | fCurrentSlice(-1), | |
d9ead1a0 | 1481 | fZmin(0), |
8221b41b | 1482 | fZmax(0), |
1483 | fYmin(0), | |
1484 | fYmax(0), | |
1485 | fI(0), | |
1486 | fImax(0), | |
1487 | fSkip(0), | |
1488 | fAccepted(0), | |
d9ead1a0 | 1489 | fRoad(0), |
1490 | fMaxSigmaClY(0), | |
1491 | fMaxSigmaClZ(0), | |
1492 | fNMaxSigmaCl(3) { | |
e43c066c | 1493 | //-------------------------------------------------------------------- |
1494 | //main AliITSlayer constructor | |
1495 | //-------------------------------------------------------------------- | |
e43c066c | 1496 | fDetectors=new AliITSdetector[fNladders*fNdetectors]; |
afd25725 | 1497 | fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster |
e43c066c | 1498 | } |
44347160 | 1499 | //------------------------------------------------------------------------ |
8221b41b | 1500 | AliITStrackerMI::AliITSlayer::AliITSlayer(const AliITSlayer& layer): |
1501 | fR(layer.fR), | |
1502 | fPhiOffset(layer.fPhiOffset), | |
1503 | fNladders(layer.fNladders), | |
1504 | fZOffset(layer.fZOffset), | |
1505 | fNdetectors(layer.fNdetectors), | |
1506 | fDetectors(layer.fDetectors), | |
1507 | fN(layer.fN), | |
1508 | fDy5(layer.fDy5), | |
1509 | fDy10(layer.fDy10), | |
1510 | fDy20(layer.fDy20), | |
1511 | fClustersCs(layer.fClustersCs), | |
1512 | fClusterIndexCs(layer.fClusterIndexCs), | |
1513 | fYcs(layer.fYcs), | |
1514 | fZcs(layer.fZcs), | |
1515 | fNcs(layer.fNcs), | |
1516 | fCurrentSlice(layer.fCurrentSlice), | |
d9ead1a0 | 1517 | fZmin(layer.fZmin), |
8221b41b | 1518 | fZmax(layer.fZmax), |
1519 | fYmin(layer.fYmin), | |
1520 | fYmax(layer.fYmax), | |
1521 | fI(layer.fI), | |
1522 | fImax(layer.fImax), | |
1523 | fSkip(layer.fSkip), | |
1524 | fAccepted(layer.fAccepted), | |
d9ead1a0 | 1525 | fRoad(layer.fRoad), |
1526 | fMaxSigmaClY(layer.fMaxSigmaClY), | |
1527 | fMaxSigmaClZ(layer.fMaxSigmaClZ), | |
1528 | fNMaxSigmaCl(layer.fNMaxSigmaCl) | |
1529 | { | |
8221b41b | 1530 | //Copy constructor |
1531 | } | |
44347160 | 1532 | //------------------------------------------------------------------------ |
e43c066c | 1533 | AliITStrackerMI::AliITSlayer::~AliITSlayer() { |
1534 | //-------------------------------------------------------------------- | |
1535 | // AliITSlayer destructor | |
1536 | //-------------------------------------------------------------------- | |
23197852 | 1537 | delete [] fDetectors; |
e43c066c | 1538 | for (Int_t i=0; i<fN; i++) delete fClusters[i]; |
e50912db | 1539 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) { |
e43c066c | 1540 | fClusterWeight[i]=0; |
1541 | fClusterTracks[0][i]=-1; | |
1542 | fClusterTracks[1][i]=-1; | |
1543 | fClusterTracks[2][i]=-1; | |
1544 | fClusterTracks[3][i]=-1; | |
1545 | } | |
1546 | } | |
44347160 | 1547 | //------------------------------------------------------------------------ |
e43c066c | 1548 | void AliITStrackerMI::AliITSlayer::ResetClusters() { |
1549 | //-------------------------------------------------------------------- | |
1550 | // This function removes loaded clusters | |
1551 | //-------------------------------------------------------------------- | |
1552 | for (Int_t i=0; i<fN; i++) delete fClusters[i]; | |
e50912db | 1553 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++){ |
e43c066c | 1554 | fClusterWeight[i]=0; |
1555 | fClusterTracks[0][i]=-1; | |
1556 | fClusterTracks[1][i]=-1; | |
1557 | fClusterTracks[2][i]=-1; | |
1558 | fClusterTracks[3][i]=-1; | |
1559 | } | |
1560 | ||
1561 | fN=0; | |
1562 | fI=0; | |
1563 | } | |
44347160 | 1564 | //------------------------------------------------------------------------ |
e43c066c | 1565 | void AliITStrackerMI::AliITSlayer::ResetWeights() { |
1566 | //-------------------------------------------------------------------- | |
1567 | // This function reset weights of the clusters | |
1568 | //-------------------------------------------------------------------- | |
e50912db | 1569 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) { |
e43c066c | 1570 | fClusterWeight[i]=0; |
1571 | fClusterTracks[0][i]=-1; | |
1572 | fClusterTracks[1][i]=-1; | |
1573 | fClusterTracks[2][i]=-1; | |
1574 | fClusterTracks[3][i]=-1; | |
1575 | } | |
1576 | for (Int_t i=0; i<fN;i++) { | |
00a7cc50 | 1577 | AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster(i); |
e43c066c | 1578 | if (cl&&cl->IsUsed()) cl->Use(); |
1579 | } | |
1580 | ||
1581 | } | |
44347160 | 1582 | //------------------------------------------------------------------------ |
e43c066c | 1583 | void AliITStrackerMI::AliITSlayer::ResetRoad() { |
1584 | //-------------------------------------------------------------------- | |
1585 | // This function calculates the road defined by the cluster density | |
1586 | //-------------------------------------------------------------------- | |
1587 | Int_t n=0; | |
1588 | for (Int_t i=0; i<fN; i++) { | |
1589 | if (TMath::Abs(fClusters[i]->GetZ())<fR) n++; | |
1590 | } | |
afd25725 | 1591 | if (n>1) fRoad=2*fR*TMath::Sqrt(TMath::Pi()/n); |
e43c066c | 1592 | } |
44347160 | 1593 | //------------------------------------------------------------------------ |
afd25725 | 1594 | Int_t AliITStrackerMI::AliITSlayer::InsertCluster(AliITSRecPoint *cl) { |
e43c066c | 1595 | //-------------------------------------------------------------------- |
1596 | //This function adds a cluster to this layer | |
1597 | //-------------------------------------------------------------------- | |
e50912db | 1598 | if (fN==AliITSRecoParam::GetMaxClusterPerLayer()) { |
e43c066c | 1599 | return 1; |
1600 | } | |
1601 | fCurrentSlice=-1; | |
afd25725 | 1602 | fClusters[fN]=cl; |
1d4090b7 | 1603 | fN++; |
afd25725 | 1604 | AliITSdetector &det=GetDetector(cl->GetDetectorIndex()); |
d9ead1a0 | 1605 | //AD |
1606 | Double_t nSigmaY=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaY2()); | |
1607 | Double_t nSigmaZ=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaZ2()); | |
1608 | if (cl->GetY()-nSigmaY<det.GetYmin()) det.SetYmin(cl->GetY()-nSigmaY); | |
1609 | if (cl->GetY()+nSigmaY>det.GetYmax()) det.SetYmax(cl->GetY()+nSigmaY); | |
1610 | if (cl->GetZ()-nSigmaZ<det.GetZmin()) det.SetZmin(cl->GetZ()-nSigmaZ); | |
1611 | if (cl->GetZ()+nSigmaZ>det.GetZmax()) det.SetZmax(cl->GetZ()+nSigmaZ); | |
1612 | //AD | |
1613 | /* | |
afd25725 | 1614 | if (cl->GetY()<det.GetYmin()) det.SetYmin(cl->GetY()); |
1615 | if (cl->GetY()>det.GetYmax()) det.SetYmax(cl->GetY()); | |
1616 | if (cl->GetZ()<det.GetZmin()) det.SetZmin(cl->GetZ()); | |
1617 | if (cl->GetZ()>det.GetZmax()) det.SetZmax(cl->GetZ()); | |
d9ead1a0 | 1618 | */ |
e43c066c | 1619 | return 0; |
1620 | } | |
44347160 | 1621 | //------------------------------------------------------------------------ |
e43c066c | 1622 | void AliITStrackerMI::AliITSlayer::SortClusters() |
1623 | { | |
1624 | // | |
1625 | //sort clusters | |
1626 | // | |
00a7cc50 | 1627 | AliITSRecPoint **clusters = new AliITSRecPoint*[fN]; |
1d4090b7 | 1628 | Float_t *z = new Float_t[fN]; |
1629 | Int_t * index = new Int_t[fN]; | |
1630 | // | |
d9ead1a0 | 1631 | fMaxSigmaClY=0.; //AD |
1632 | fMaxSigmaClZ=0.; //AD | |
1633 | ||
1d4090b7 | 1634 | for (Int_t i=0;i<fN;i++){ |
1635 | z[i] = fClusters[i]->GetZ(); | |
d9ead1a0 | 1636 | // save largest errors in y and z for this layer |
1637 | fMaxSigmaClY=TMath::Max(fMaxSigmaClY,TMath::Sqrt(fClusters[i]->GetSigmaY2())); | |
1638 | fMaxSigmaClZ=TMath::Max(fMaxSigmaClZ,TMath::Sqrt(fClusters[i]->GetSigmaZ2())); | |
1d4090b7 | 1639 | } |
1640 | TMath::Sort(fN,z,index,kFALSE); | |
1641 | for (Int_t i=0;i<fN;i++){ | |
1642 | clusters[i] = fClusters[index[i]]; | |
1643 | } | |
1644 | // | |
1645 | for (Int_t i=0;i<fN;i++){ | |
1646 | fClusters[i] = clusters[i]; | |
1647 | fZ[i] = fClusters[i]->GetZ(); | |
1648 | AliITSdetector &det=GetDetector(fClusters[i]->GetDetectorIndex()); | |
1649 | Double_t y=fR*det.GetPhi() + fClusters[i]->GetY(); | |
1650 | if (y>2.*fR*TMath::Pi()) y -= 2.*fR*TMath::Pi(); | |
1651 | fY[i] = y; | |
1652 | } | |
1653 | delete[] index; | |
1654 | delete[] z; | |
1655 | delete[] clusters; | |
1656 | // | |
1657 | ||
e43c066c | 1658 | fYB[0]=10000000; |
1659 | fYB[1]=-10000000; | |
1660 | for (Int_t i=0;i<fN;i++){ | |
1661 | if (fY[i]<fYB[0]) fYB[0]=fY[i]; | |
1662 | if (fY[i]>fYB[1]) fYB[1]=fY[i]; | |
1663 | fClusterIndex[i] = i; | |
1664 | } | |
1665 | // | |
1666 | // fill slices | |
1667 | fDy5 = (fYB[1]-fYB[0])/5.; | |
1668 | fDy10 = (fYB[1]-fYB[0])/10.; | |
1669 | fDy20 = (fYB[1]-fYB[0])/20.; | |
1670 | for (Int_t i=0;i<6;i++) fN5[i] =0; | |
1671 | for (Int_t i=0;i<11;i++) fN10[i]=0; | |
1672 | for (Int_t i=0;i<21;i++) fN20[i]=0; | |
1673 | // | |
1674 | for (Int_t i=0;i<6;i++) {fBy5[i][0] = fYB[0]+(i-0.75)*fDy5; fBy5[i][1] = fYB[0]+(i+0.75)*fDy5;} | |
1675 | for (Int_t i=0;i<11;i++) {fBy10[i][0] = fYB[0]+(i-0.75)*fDy10; fBy10[i][1] = fYB[0]+(i+0.75)*fDy10;} | |
1676 | for (Int_t i=0;i<21;i++) {fBy20[i][0] = fYB[0]+(i-0.75)*fDy20; fBy20[i][1] = fYB[0]+(i+0.75)*fDy20;} | |
1677 | // | |
1678 | // | |
1d4090b7 | 1679 | for (Int_t i=0;i<fN;i++) |
1680 | for (Int_t irot=-1;irot<=1;irot++){ | |
1681 | Float_t curY = fY[i]+irot*TMath::TwoPi()*fR; | |
1682 | // slice 5 | |
1683 | for (Int_t slice=0; slice<6;slice++){ | |
e50912db | 1684 | if (fBy5[slice][0]<curY && curY<fBy5[slice][1]&&fN5[slice]<AliITSRecoParam::GetMaxClusterPerLayer5()){ |
1d4090b7 | 1685 | fClusters5[slice][fN5[slice]] = fClusters[i]; |
1686 | fY5[slice][fN5[slice]] = curY; | |
1687 | fZ5[slice][fN5[slice]] = fZ[i]; | |
1688 | fClusterIndex5[slice][fN5[slice]]=i; | |
1689 | fN5[slice]++; | |
1690 | } | |
e43c066c | 1691 | } |
1d4090b7 | 1692 | // slice 10 |
1693 | for (Int_t slice=0; slice<11;slice++){ | |
e50912db | 1694 | if (fBy10[slice][0]<curY && curY<fBy10[slice][1]&&fN10[slice]<AliITSRecoParam::GetMaxClusterPerLayer10()){ |
1d4090b7 | 1695 | fClusters10[slice][fN10[slice]] = fClusters[i]; |
1696 | fY10[slice][fN10[slice]] = curY; | |
1697 | fZ10[slice][fN10[slice]] = fZ[i]; | |
1698 | fClusterIndex10[slice][fN10[slice]]=i; | |
1699 | fN10[slice]++; | |
1700 | } | |
e43c066c | 1701 | } |
1d4090b7 | 1702 | // slice 20 |
1703 | for (Int_t slice=0; slice<21;slice++){ | |
e50912db | 1704 | if (fBy20[slice][0]<curY && curY<fBy20[slice][1]&&fN20[slice]<AliITSRecoParam::GetMaxClusterPerLayer20()){ |
1d4090b7 | 1705 | fClusters20[slice][fN20[slice]] = fClusters[i]; |
1706 | fY20[slice][fN20[slice]] = curY; | |
1707 | fZ20[slice][fN20[slice]] = fZ[i]; | |
1708 | fClusterIndex20[slice][fN20[slice]]=i; | |
1709 | fN20[slice]++; | |
1710 | } | |
1711 | } | |
e43c066c | 1712 | } |
1d4090b7 | 1713 | |
1714 | // | |
1715 | // consistency check | |
1716 | // | |
1717 | for (Int_t i=0;i<fN-1;i++){ | |
1718 | if (fZ[i]>fZ[i+1]){ | |
ae00569a | 1719 | printf("Bug\n"); |
e43c066c | 1720 | } |
1721 | } | |
1d4090b7 | 1722 | // |
1723 | for (Int_t slice=0;slice<21;slice++) | |
1724 | for (Int_t i=0;i<fN20[slice]-1;i++){ | |
1725 | if (fZ20[slice][i]>fZ20[slice][i+1]){ | |
ae00569a | 1726 | printf("Bug\n"); |
1d4090b7 | 1727 | } |
1728 | } | |
1729 | ||
1730 | ||
e43c066c | 1731 | } |
44347160 | 1732 | //------------------------------------------------------------------------ |
e43c066c | 1733 | Int_t AliITStrackerMI::AliITSlayer::FindClusterIndex(Float_t z) const { |
1734 | //-------------------------------------------------------------------- | |
1735 | // This function returns the index of the nearest cluster | |
1736 | //-------------------------------------------------------------------- | |
1737 | Int_t ncl=0; | |
1738 | const Float_t *zcl; | |
1739 | if (fCurrentSlice<0) { | |
1740 | ncl = fN; | |
1741 | zcl = fZ; | |
1742 | } | |
1743 | else{ | |
1744 | ncl = fNcs; | |
1745 | zcl = fZcs;; | |
1746 | } | |
1747 | ||
1748 | if (ncl==0) return 0; | |
1749 | Int_t b=0, e=ncl-1, m=(b+e)/2; | |
1750 | for (; b<e; m=(b+e)/2) { | |
1751 | // if (z > fClusters[m]->GetZ()) b=m+1; | |
1752 | if (z > zcl[m]) b=m+1; | |
1753 | else e=m; | |
1754 | } | |
1755 | return m; | |
1756 | } | |
44347160 | 1757 | //------------------------------------------------------------------------ |
1c97ce2f | 1758 | Bool_t AliITStrackerMI::ComputeRoad(AliITStrackMI* track,Int_t ilayer,Int_t idet,Double_t &zmin,Double_t &zmax,Double_t &ymin,Double_t &ymax) const { |
1759 | //-------------------------------------------------------------------- | |
1760 | // This function computes the rectangular road for this track | |
1761 | //-------------------------------------------------------------------- | |
1762 | ||
1763 | ||
1764 | AliITSdetector &det = fgLayers[ilayer].GetDetector(idet); | |
1765 | // take into account the misalignment: propagate track to misaligned detector plane | |
1766 | if (!track->Propagate(det.GetPhi(),det.GetRmisal())) return kFALSE; | |
1767 | ||
1768 | Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()* | |
1769 | TMath::Sqrt(track->GetSigmaZ2() + | |
1770 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1771 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1772 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer)); | |
1773 | Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()* | |
1774 | TMath::Sqrt(track->GetSigmaY2() + | |
1775 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1776 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1777 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer)); | |
1778 | ||
1779 | // track at boundary between detectors, enlarge road | |
1780 | Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth(); | |
1781 | if ( (track->GetY()-dy < det.GetYmin()+boundaryWidth) || | |
1782 | (track->GetY()+dy > det.GetYmax()-boundaryWidth) || | |
1783 | (track->GetZ()-dz < det.GetZmin()+boundaryWidth) || | |
1784 | (track->GetZ()+dz > det.GetZmax()-boundaryWidth) ) { | |
1785 | Float_t tgl = TMath::Abs(track->GetTgl()); | |
1786 | if (tgl > 1.) tgl=1.; | |
1787 | Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets(); | |
1788 | dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl); | |
1789 | Float_t snp = TMath::Abs(track->GetSnp()); | |
1790 | if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) return kFALSE; | |
1791 | dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp); | |
1792 | } // boundary | |
1793 | ||
1794 | // add to the road a term (up to 2-3 mm) to deal with misalignments | |
1795 | dy = TMath::Sqrt(dy*dy + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal()); | |
1796 | dz = TMath::Sqrt(dz*dz + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal()); | |
1797 | ||
1798 | Double_t r = fgLayers[ilayer].GetR(); | |
1799 | zmin = track->GetZ() - dz; | |
1800 | zmax = track->GetZ() + dz; | |
1801 | ymin = track->GetY() + r*det.GetPhi() - dy; | |
1802 | ymax = track->GetY() + r*det.GetPhi() + dy; | |
1803 | ||
1804 | // bring track back to idead detector plane | |
1805 | if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE; | |
1806 | ||
1807 | return kTRUE; | |
1808 | } | |
1809 | //------------------------------------------------------------------------ | |
e43c066c | 1810 | void AliITStrackerMI::AliITSlayer:: |
1811 | SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) { | |
1812 | //-------------------------------------------------------------------- | |
1813 | // This function sets the "window" | |
1814 | //-------------------------------------------------------------------- | |
1815 | ||
628e7bb0 | 1816 | Double_t circle=2*TMath::Pi()*fR; |
d9ead1a0 | 1817 | fYmin = ymin; |
1818 | fYmax = ymax; | |
1819 | fZmin = zmin; | |
1820 | fZmax = zmax; | |
1821 | // AD | |
1822 | // enlarge road in y by maximum cluster error on this layer (3 sigma) | |
1823 | fYmin -= fNMaxSigmaCl*fMaxSigmaClY; | |
1824 | fYmax += fNMaxSigmaCl*fMaxSigmaClY; | |
1825 | fZmin -= fNMaxSigmaCl*fMaxSigmaClZ; | |
1826 | fZmax += fNMaxSigmaCl*fMaxSigmaClZ; | |
1827 | ||
e43c066c | 1828 | Float_t ymiddle = (fYmin+fYmax)*0.5; |
ae00569a | 1829 | if (ymiddle<fYB[0]) { |
1830 | fYmin+=circle; fYmax+=circle; ymiddle+=circle; | |
1831 | } else if (ymiddle>fYB[1]) { | |
1832 | fYmin-=circle; fYmax-=circle; ymiddle-=circle; | |
e43c066c | 1833 | } |
ae00569a | 1834 | |
e43c066c | 1835 | // |
1836 | fCurrentSlice =-1; | |
1837 | // defualt take all | |
1838 | fClustersCs = fClusters; | |
1839 | fClusterIndexCs = fClusterIndex; | |
1840 | fYcs = fY; | |
1841 | fZcs = fZ; | |
1842 | fNcs = fN; | |
628e7bb0 | 1843 | // |
e43c066c | 1844 | //is in 20 slice? |
1845 | if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy20){ | |
1846 | Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy20); | |
1847 | if (slice<0) slice=0; | |
1848 | if (slice>20) slice=20; | |
1849 | Bool_t isOK = (fYmin>fBy20[slice][0]&&fYmax<fBy20[slice][1]); | |
1850 | if (isOK) { | |
1851 | fCurrentSlice=slice; | |
1852 | fClustersCs = fClusters20[fCurrentSlice]; | |
1853 | fClusterIndexCs = fClusterIndex20[fCurrentSlice]; | |
1854 | fYcs = fY20[fCurrentSlice]; | |
1855 | fZcs = fZ20[fCurrentSlice]; | |
1856 | fNcs = fN20[fCurrentSlice]; | |
1857 | } | |
1858 | } | |
1859 | // | |
1860 | //is in 10 slice? | |
1861 | if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy10){ | |
1862 | Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy10); | |
1863 | if (slice<0) slice=0; | |
1864 | if (slice>10) slice=10; | |
1865 | Bool_t isOK = (fYmin>fBy10[slice][0]&&fYmax<fBy10[slice][1]); | |
1866 | if (isOK) { | |
1867 | fCurrentSlice=slice; | |
1868 | fClustersCs = fClusters10[fCurrentSlice]; | |
1869 | fClusterIndexCs = fClusterIndex10[fCurrentSlice]; | |
1870 | fYcs = fY10[fCurrentSlice]; | |
1871 | fZcs = fZ10[fCurrentSlice]; | |
1872 | fNcs = fN10[fCurrentSlice]; | |
1873 | } | |
1874 | } | |
1875 | // | |
1876 | //is in 5 slice? | |
1877 | if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy5){ | |
1878 | Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy5); | |
1879 | if (slice<0) slice=0; | |
1880 | if (slice>5) slice=5; | |
1881 | Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]); | |
ae00569a | 1882 | if (isOK) { |
e43c066c | 1883 | fCurrentSlice=slice; |
1884 | fClustersCs = fClusters5[fCurrentSlice]; | |
1885 | fClusterIndexCs = fClusterIndex5[fCurrentSlice]; | |
1886 | fYcs = fY5[fCurrentSlice]; | |
1887 | fZcs = fZ5[fCurrentSlice]; | |
1888 | fNcs = fN5[fCurrentSlice]; | |
1889 | } | |
1890 | } | |
628e7bb0 | 1891 | // |
d9ead1a0 | 1892 | fI = FindClusterIndex(fZmin); |
1893 | fImax = TMath::Min(FindClusterIndex(fZmax)+1,fNcs); | |
1894 | fSkip = 0; | |
1895 | fAccepted = 0; | |
6518a6c5 | 1896 | |
1897 | return; | |
e43c066c | 1898 | } |
44347160 | 1899 | //------------------------------------------------------------------------ |
628e7bb0 | 1900 | Int_t AliITStrackerMI::AliITSlayer:: |
1901 | FindDetectorIndex(Double_t phi, Double_t z) const { | |
1902 | //-------------------------------------------------------------------- | |
1903 | //This function finds the detector crossed by the track | |
1904 | //-------------------------------------------------------------------- | |
31fb8575 | 1905 | Double_t dphi; |
1906 | if (fZOffset<0) // old geometry | |
1907 | dphi = -(phi-fPhiOffset); | |
1908 | else // new geometry | |
1909 | dphi = phi-fPhiOffset; | |
1910 | ||
6518a6c5 | 1911 | |
628e7bb0 | 1912 | if (dphi < 0) dphi += 2*TMath::Pi(); |
1913 | else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi(); | |
1914 | Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5); | |
1915 | if (np>=fNladders) np-=fNladders; | |
1916 | if (np<0) np+=fNladders; | |
1917 | ||
6518a6c5 | 1918 | |
628e7bb0 | 1919 | Double_t dz=fZOffset-z; |
6518a6c5 | 1920 | Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5; |
1921 | Int_t nz = (nnz<0 ? -1 : (Int_t)nnz); | |
bf1cd124 | 1922 | if (nz>=fNdetectors || nz<0) { |
1923 | //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz); | |
1924 | return -1; | |
1925 | } | |
628e7bb0 | 1926 | |
23197852 | 1927 | // ad hoc correction for 3rd ladder of SDD inner layer, |
1928 | // which is reversed (rotated by pi around local y) | |
1929 | // this correction is OK only from AliITSv11Hybrid onwards | |
1930 | if (GetR()>12. && GetR()<20.) { // SDD inner | |
1931 | if(np==2) { // 3rd ladder | |
6801b453 | 1932 | Double_t posMod252[3]; |
1933 | AliITSgeomTGeo::GetTranslation(252,posMod252); | |
1934 | // check the Z coordinate of Mod 252: if negative | |
1935 | // (old SDD geometry in AliITSv11Hybrid) | |
1936 | // the swap of numeration whould be applied | |
1937 | if(posMod252[2]<0.){ | |
1938 | nz = (fNdetectors-1) - nz; | |
1939 | } | |
1940 | } | |
23197852 | 1941 | } |
1942 | //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz); | |
1943 | ||
1944 | ||
628e7bb0 | 1945 | return np*fNdetectors + nz; |
1946 | } | |
44347160 | 1947 | //------------------------------------------------------------------------ |
ae00569a | 1948 | const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci,Bool_t test) |
1949 | { | |
e43c066c | 1950 | //-------------------------------------------------------------------- |
1951 | // This function returns clusters within the "window" | |
1952 | //-------------------------------------------------------------------- | |
1953 | ||
ae00569a | 1954 | if (fCurrentSlice<0) { |
e43c066c | 1955 | Double_t rpi2 = 2.*fR*TMath::Pi(); |
1956 | for (Int_t i=fI; i<fImax; i++) { | |
1957 | Double_t y = fY[i]; | |
d9ead1a0 | 1958 | Double_t z = fZ[i]; |
e43c066c | 1959 | if (fYmax<y) y -= rpi2; |
1d4090b7 | 1960 | if (fYmin>y) y += rpi2; |
e43c066c | 1961 | if (y<fYmin) continue; |
1962 | if (y>fYmax) continue; | |
d9ead1a0 | 1963 | // AD |
1964 | // skip clusters that are in "extended" road but they | |
1965 | // 3sigma error does not touch the original road | |
1966 | if (z+fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())<fZmin+fNMaxSigmaCl*fMaxSigmaClZ) continue; | |
1967 | if (z-fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())>fZmax-fNMaxSigmaCl*fMaxSigmaClZ) continue; | |
1968 | // | |
e43c066c | 1969 | if (fClusters[i]->GetQ()==0&&fSkip==2) continue; |
1970 | ci=i; | |
ae00569a | 1971 | if (!test) fI=i+1; |
e43c066c | 1972 | return fClusters[i]; |
1973 | } | |
ae00569a | 1974 | } else { |
e43c066c | 1975 | for (Int_t i=fI; i<fImax; i++) { |
1976 | if (fYcs[i]<fYmin) continue; | |
1977 | if (fYcs[i]>fYmax) continue; | |
1978 | if (fClustersCs[i]->GetQ()==0&&fSkip==2) continue; | |
1979 | ci=fClusterIndexCs[i]; | |
ae00569a | 1980 | if (!test) fI=i+1; |
e43c066c | 1981 | return fClustersCs[i]; |
1982 | } | |
1983 | } | |
1984 | return 0; | |
1985 | } | |
44347160 | 1986 | //------------------------------------------------------------------------ |
e43c066c | 1987 | Double_t AliITStrackerMI::AliITSlayer::GetThickness(Double_t y,Double_t z,Double_t &x0) |
1988 | const { | |
1989 | //-------------------------------------------------------------------- | |
afd25725 | 1990 | // This function returns the layer thickness at this point (units X0) |
e43c066c | 1991 | //-------------------------------------------------------------------- |
1992 | Double_t d=0.0085; | |
e50912db | 1993 | x0=AliITSRecoParam::GetX0Air(); |
e43c066c | 1994 | if (43<fR&&fR<45) { //SSD2 |
1995 | Double_t dd=0.0034; | |
1996 | d=dd; | |
1997 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
1998 | if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);} | |
1999 | if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);} | |
2000 | for (Int_t i=0; i<12; i++) { | |
2001 | if (TMath::Abs(z-3.9*(i+0.5))<0.15) { | |
2002 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2003 | d+=0.0034; | |
2004 | break; | |
2005 | } | |
2006 | if (TMath::Abs(z+3.9*(i+0.5))<0.15) { | |
2007 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2008 | d+=0.0034; | |
2009 | break; | |
2010 | } | |
2011 | if (TMath::Abs(z-3.4-3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2012 | if (TMath::Abs(z+0.5+3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2013 | } | |
2014 | } else | |
2015 | if (37<fR&&fR<41) { //SSD1 | |
2016 | Double_t dd=0.0034; | |
2017 | d=dd; | |
2018 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2019 | if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);} | |
2020 | if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);} | |
2021 | for (Int_t i=0; i<11; i++) { | |
2022 | if (TMath::Abs(z-3.9*i)<0.15) { | |
2023 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2024 | d+=dd; | |
2025 | break; | |
2026 | } | |
2027 | if (TMath::Abs(z+3.9*i)<0.15) { | |
2028 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2029 | d+=dd; | |
2030 | break; | |
2031 | } | |
2032 | if (TMath::Abs(z-1.85-3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2033 | if (TMath::Abs(z+2.05+3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2034 | } | |
2035 | } else | |
2036 | if (13<fR&&fR<26) { //SDD | |
2037 | Double_t dd=0.0033; | |
2038 | d=dd; | |
2039 | if (TMath::Abs(y-0.00)>3.30) d+=dd; | |
2040 | ||
2041 | if (TMath::Abs(y-1.80)<0.55) { | |
2042 | d+=0.016; | |
2043 | for (Int_t j=0; j<20; j++) { | |
2044 | if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2045 | if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2046 | } | |
2047 | } | |
2048 | if (TMath::Abs(y+1.80)<0.55) { | |
2049 | d+=0.016; | |
2050 | for (Int_t j=0; j<20; j++) { | |
2051 | if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2052 | if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2053 | } | |
2054 | } | |
2055 | ||
2056 | for (Int_t i=0; i<4; i++) { | |
2057 | if (TMath::Abs(z-7.3*i)<0.60) { | |
2058 | d+=dd; | |
2059 | if (TMath::Abs(y-0.00)>3.30) d+=dd; | |
2060 | break; | |
2061 | } | |
2062 | if (TMath::Abs(z+7.3*i)<0.60) { | |
2063 | d+=dd; | |
2064 | if (TMath::Abs(y-0.00)>3.30) d+=dd; | |
2065 | break; | |
2066 | } | |
2067 | } | |
2068 | } else | |
2069 | if (6<fR&&fR<8) { //SPD2 | |
2070 | Double_t dd=0.0063; x0=21.5; | |
2071 | d=dd; | |
2072 | if (TMath::Abs(y-3.08)>0.5) d+=dd; | |
afd25725 | 2073 | if (TMath::Abs(y-3.03)<0.10) d+=0.014; |
e43c066c | 2074 | } else |
2075 | if (3<fR&&fR<5) { //SPD1 | |
2076 | Double_t dd=0.0063; x0=21.5; | |
2077 | d=dd; | |
2078 | if (TMath::Abs(y+0.21)>0.6) d+=dd; | |
afd25725 | 2079 | if (TMath::Abs(y+0.10)<0.10) d+=0.014; |
e43c066c | 2080 | } |
2081 | ||
2082 | return d; | |
2083 | } | |
44347160 | 2084 | //------------------------------------------------------------------------ |
23197852 | 2085 | AliITStrackerMI::AliITSdetector::AliITSdetector(const AliITSdetector& det): |
2086 | fR(det.fR), | |
1c97ce2f | 2087 | fRmisal(det.fRmisal), |
23197852 | 2088 | fPhi(det.fPhi), |
2089 | fSinPhi(det.fSinPhi), | |
2090 | fCosPhi(det.fCosPhi), | |
2091 | fYmin(det.fYmin), | |
2092 | fYmax(det.fYmax), | |
2093 | fZmin(det.fZmin), | |
2094 | fZmax(det.fZmax), | |
2095 | fIsBad(det.fIsBad), | |
2096 | fNChips(det.fNChips), | |
2097 | fChipIsBad(det.fChipIsBad) | |
2098 | { | |
2099 | //Copy constructor | |
2100 | } | |
2101 | //------------------------------------------------------------------------ | |
2102 | void AliITStrackerMI::AliITSdetector::ReadBadDetectorAndChips(Int_t ilayer,Int_t idet, | |
a70ed6ad | 2103 | const AliITSDetTypeRec *detTypeRec) |
23197852 | 2104 | { |
2105 | //-------------------------------------------------------------------- | |
2106 | // Read bad detectors and chips from calibration objects in AliITSDetTypeRec | |
2107 | //-------------------------------------------------------------------- | |
2108 | ||
2109 | // In AliITSDetTypeRec, detector numbers go from 0 to 2197 | |
2110 | // while in the tracker they start from 0 for each layer | |
2111 | for(Int_t il=0; il<ilayer; il++) | |
2112 | idet += AliITSgeomTGeo::GetNLadders(il+1)*AliITSgeomTGeo::GetNDetectors(il+1); | |
2113 | ||
2114 | Int_t detType; | |
2115 | if (ilayer==0 || ilayer==1) { // ---------- SPD | |
2116 | detType = 0; | |
2117 | } else if (ilayer==2 || ilayer==3) { // ---------- SDD | |
2118 | detType = 1; | |
2119 | } else if (ilayer==4 || ilayer==5) { // ---------- SSD | |
2120 | detType = 2; | |
2121 | } else { | |
2122 | printf("AliITStrackerMI::AliITSdetector::InitBadFromOCDB: Wrong layer number %d\n",ilayer); | |
2123 | return; | |
2124 | } | |
2125 | ||
2126 | // Get calibration from AliITSDetTypeRec | |
2127 | AliITSCalibration *calib = (AliITSCalibration*)detTypeRec->GetCalibrationModel(idet); | |
d1181f10 | 2128 | calib->SetModuleIndex(idet); |
23197852 | 2129 | AliITSCalibration *calibSPDdead = 0; |
2130 | if(detType==0) calibSPDdead = (AliITSCalibration*)detTypeRec->GetSPDDeadModel(idet); // TEMPORARY | |
2131 | if (calib->IsBad() || | |
2132 | (detType==0 && calibSPDdead->IsBad())) // TEMPORARY | |
2133 | { | |
2134 | SetBad(); | |
359ac74d | 2135 | // printf("lay %d bad %d\n",ilayer,idet); |
23197852 | 2136 | } |
2137 | ||
2138 | // Get segmentation from AliITSDetTypeRec | |
2139 | AliITSsegmentation *segm = (AliITSsegmentation*)detTypeRec->GetSegmentationModel(detType); | |
2140 | ||
2141 | // Read info about bad chips | |
2142 | fNChips = segm->GetMaximumChipIndex()+1; | |
2143 | //printf("ilayer %d detType %d idet %d fNChips %d %d GetNumberOfChips %d\n",ilayer,detType,idet,fNChips,segm->GetMaximumChipIndex(),segm->GetNumberOfChips()); | |
2144 | if(fChipIsBad) { delete [] fChipIsBad; fChipIsBad=NULL; } | |
2145 | fChipIsBad = new Bool_t[fNChips]; | |
2146 | for (Int_t iCh=0;iCh<fNChips;iCh++) { | |
2147 | fChipIsBad[iCh] = calib->IsChipBad(iCh); | |
2148 | if (detType==0 && calibSPDdead->IsChipBad(iCh)) fChipIsBad[iCh] = kTRUE; // TEMPORARY | |
4187a601 | 2149 | //if(fChipIsBad[iCh]) {printf("lay %d det %d bad chip %d\n",ilayer,idet,iCh);} |
23197852 | 2150 | } |
2151 | ||
2152 | return; | |
2153 | } | |
2154 | //------------------------------------------------------------------------ | |
e50912db | 2155 | Double_t AliITStrackerMI::GetEffectiveThickness() |
e43c066c | 2156 | { |
2157 | //-------------------------------------------------------------------- | |
afd25725 | 2158 | // Returns the thickness between the current layer and the vertex (units X0) |
e43c066c | 2159 | //-------------------------------------------------------------------- |
e43c066c | 2160 | |
e50912db | 2161 | if(fUseTGeo!=0) { |
2162 | if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers"); | |
2163 | if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields"); | |
2164 | if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe"); | |
2165 | } | |
2166 | ||
afd25725 | 2167 | // beam pipe |
e50912db | 2168 | Double_t dPipe = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe); |
2169 | Double_t d=dPipe*AliITSRecoParam::GetrPipe()*AliITSRecoParam::GetrPipe(); | |
afd25725 | 2170 | |
2171 | // layers | |
2172 | Double_t x0=0; | |
e43c066c | 2173 | Double_t xn=fgLayers[fI].GetR(); |
2174 | for (Int_t i=0; i<fI; i++) { | |
2175 | Double_t xi=fgLayers[i].GetR(); | |
e50912db | 2176 | Double_t dLayer = (fUseTGeo==0 ? fgLayers[i].GetThickness(0,0,x0) : fxOverX0Layer[i]); |
2177 | d+=dLayer*xi*xi; | |
e43c066c | 2178 | } |
2179 | ||
afd25725 | 2180 | // shields |
e43c066c | 2181 | if (fI>1) { |
e50912db | 2182 | Double_t dshieldSPD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]); |
2183 | d+=dshieldSPD*AliITSRecoParam::GetrInsideShield(0)*AliITSRecoParam::GetrInsideShield(0); | |
e43c066c | 2184 | } |
e43c066c | 2185 | if (fI>3) { |
e50912db | 2186 | Double_t dshieldSDD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]); |
2187 | d+=dshieldSDD*AliITSRecoParam::GetrInsideShield(1)*AliITSRecoParam::GetrInsideShield(1); | |
e43c066c | 2188 | } |
e43c066c | 2189 | return d/(xn*xn); |
2190 | } | |
44347160 | 2191 | //------------------------------------------------------------------------ |
e43c066c | 2192 | Int_t AliITStrackerMI::AliITSlayer::InRoad() const { |
ae00569a | 2193 | //------------------------------------------------------------------- |
e43c066c | 2194 | // This function returns number of clusters within the "window" |
2195 | //-------------------------------------------------------------------- | |
2196 | Int_t ncl=0; | |
2197 | for (Int_t i=fI; i<fN; i++) { | |
00a7cc50 | 2198 | const AliITSRecPoint *c=fClusters[i]; |
e43c066c | 2199 | if (c->GetZ() > fZmax) break; |
2200 | if (c->IsUsed()) continue; | |
2201 | const AliITSdetector &det=GetDetector(c->GetDetectorIndex()); | |
2202 | Double_t y=fR*det.GetPhi() + c->GetY(); | |
2203 | ||
2204 | if (y>2.*fR*TMath::Pi()) y -= 2*fR*TMath::Pi(); | |
2205 | if (y>1.*fR*TMath::Pi() && fYmax<y) y -= 2*fR*TMath::Pi(); | |
2206 | ||
2207 | if (y<fYmin) continue; | |
2208 | if (y>fYmax) continue; | |
2209 | ncl++; | |
2210 | } | |
2211 | return ncl; | |
2212 | } | |
44347160 | 2213 | //------------------------------------------------------------------------ |
ae00569a | 2214 | Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track, |
7167ae53 | 2215 | const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff) |
ae00569a | 2216 | { |
e43c066c | 2217 | //-------------------------------------------------------------------- |
ae00569a | 2218 | // This function refits the track "track" at the position "x" using |
2219 | // the clusters from "clusters" | |
ef7253ac | 2220 | // If "extra"==kTRUE, |
ae00569a | 2221 | // the clusters from overlapped modules get attached to "track" |
7167ae53 | 2222 | // If "planeff"==kTRUE, |
2223 | // special approach for plane efficiency evaluation is applyed | |
e43c066c | 2224 | //-------------------------------------------------------------------- |
6518a6c5 | 2225 | |
e50912db | 2226 | Int_t index[AliITSgeomTGeo::kNLayers]; |
e43c066c | 2227 | Int_t k; |
e50912db | 2228 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1; |
ae00569a | 2229 | Int_t nc=clusters->GetNumberOfClusters(); |
e43c066c | 2230 | for (k=0; k<nc; k++) { |
ae00569a | 2231 | Int_t idx=clusters->GetClusterIndex(k); |
2232 | Int_t ilayer=(idx&0xf0000000)>>28; | |
2233 | index[ilayer]=idx; | |
e43c066c | 2234 | } |
67c1e979 | 2235 | |
7167ae53 | 2236 | return RefitAt(xx,track,index,extra,planeeff); // call the method below |
67c1e979 | 2237 | } |
44347160 | 2238 | //------------------------------------------------------------------------ |
ae00569a | 2239 | Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track, |
7167ae53 | 2240 | const Int_t *clusters,Bool_t extra, Bool_t planeeff) |
ae00569a | 2241 | { |
67c1e979 | 2242 | //-------------------------------------------------------------------- |
ae00569a | 2243 | // This function refits the track "track" at the position "x" using |
67c1e979 | 2244 | // the clusters from array |
ae00569a | 2245 | // If "extra"==kTRUE, |
2246 | // the clusters from overlapped modules get attached to "track" | |
7167ae53 | 2247 | // If "planeff"==kTRUE, |
2248 | // special approach for plane efficiency evaluation is applyed | |
67c1e979 | 2249 | //-------------------------------------------------------------------- |
e50912db | 2250 | Int_t index[AliITSgeomTGeo::kNLayers]; |
67c1e979 | 2251 | Int_t k; |
e50912db | 2252 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1; |
67c1e979 | 2253 | // |
e50912db | 2254 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) { |
ae00569a | 2255 | index[k]=clusters[k]; |
67c1e979 | 2256 | } |
2257 | ||
afd25725 | 2258 | // special for cosmics: check which the innermost layer crossed |
2259 | // by the track | |
2260 | Int_t innermostlayer=5; | |
ae00569a | 2261 | Double_t drphi = TMath::Abs(track->GetD(0.,0.)); |
2262 | for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) { | |
2263 | if(drphi < fgLayers[innermostlayer].GetR()) break; | |
2264 | } | |
4fa7f7d1 | 2265 | AliDebug(2,Form(" drphi %f innermost %d",drphi,innermostlayer)); |
afd25725 | 2266 | |
ae00569a | 2267 | Int_t modstatus=1; // found |
2268 | Float_t xloc,zloc; | |
67c1e979 | 2269 | Int_t from, to, step; |
ae00569a | 2270 | if (xx > track->GetX()) { |
e50912db | 2271 | from=innermostlayer; to=AliITSgeomTGeo::GetNLayers(); |
67c1e979 | 2272 | step=+1; |
2273 | } else { | |
e50912db | 2274 | from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1; |
67c1e979 | 2275 | step=-1; |
2276 | } | |
ae00569a | 2277 | TString dir = (step>0 ? "outward" : "inward"); |
67c1e979 | 2278 | |
ae00569a | 2279 | for (Int_t ilayer = from; ilayer != to; ilayer += step) { |
6518a6c5 | 2280 | AliITSlayer &layer=fgLayers[ilayer]; |
67c1e979 | 2281 | Double_t r=layer.GetR(); |
4fa7f7d1 | 2282 | |
afd25725 | 2283 | if (step<0 && xx>r) break; |
2284 | ||
2285 | // material between SSD and SDD, SDD and SPD | |
6518a6c5 | 2286 | Double_t hI=ilayer-0.5*step; |
e50912db | 2287 | if (TMath::Abs(hI-3.5)<0.01) // SDDouter |
ae00569a | 2288 | if(!CorrectForShieldMaterial(track,"SDD",dir)) return kFALSE; |
e50912db | 2289 | if (TMath::Abs(hI-1.5)<0.01) // SPDouter |
ae00569a | 2290 | if(!CorrectForShieldMaterial(track,"SPD",dir)) return kFALSE; |
67c1e979 | 2291 | |
ae00569a | 2292 | |
afd25725 | 2293 | Double_t oldGlobXYZ[3]; |
d1181f10 | 2294 | if (!track->GetXYZ(oldGlobXYZ)) return kFALSE; |
afd25725 | 2295 | |
67178f34 | 2296 | // continue if we are already beyond this layer |
2297 | Double_t oldGlobR = TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]); | |
2298 | if(step>0 && oldGlobR > r) continue; // going outward | |
2299 | if(step<0 && oldGlobR < r) continue; // going inward | |
2300 | ||
8602c008 | 2301 | Double_t phi,z; |
ae00569a | 2302 | if (!track->GetPhiZat(r,phi,z)) return kFALSE; |
67c1e979 | 2303 | |
67c1e979 | 2304 | Int_t idet=layer.FindDetectorIndex(phi,z); |
6518a6c5 | 2305 | |
2306 | // check if we allow a prolongation without point for large-eta tracks | |
ae00569a | 2307 | Int_t skip = CheckSkipLayer(track,ilayer,idet); |
6518a6c5 | 2308 | if (skip==2) { |
ae00569a | 2309 | modstatus = 4; // out in z |
d1181f10 | 2310 | if(LocalModuleCoord(ilayer,idet,track,xloc,zloc)) { // local module coords |
2311 | track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
2312 | } | |
7131593b | 2313 | // cross layer |
2314 | // apply correction for material of the current layer | |
2315 | // add time if going outward | |
2316 | CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir); | |
6518a6c5 | 2317 | continue; |
2318 | } | |
2319 | ||
e50912db | 2320 | if (idet<0) return kFALSE; |
ae00569a | 2321 | |
4fa7f7d1 | 2322 | |
67c1e979 | 2323 | const AliITSdetector &det=layer.GetDetector(idet); |
545af9ef | 2324 | // only for ITS-SA tracks refit |
2325 | if (ilayer>1 && fTrackingPhase.Contains("RefitInward") && !(track->GetStatus()&AliESDtrack::kTPCin)) track->SetCheckInvariant(kFALSE); | |
2326 | // | |
1c97ce2f | 2327 | if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE; |
23197852 | 2328 | |
ae00569a | 2329 | track->SetDetectorIndex(idet); |
d1181f10 | 2330 | if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords |
67c1e979 | 2331 | |
23197852 | 2332 | Double_t dz,zmin,zmax,dy,ymin,ymax; |
ae00569a | 2333 | |
2334 | const AliITSRecPoint *clAcc=0; | |
44347160 | 2335 | Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(); |
67c1e979 | 2336 | |
6518a6c5 | 2337 | Int_t idx=index[ilayer]; |
ae00569a | 2338 | if (idx>=0) { // cluster in this layer |
2339 | modstatus = 6; // no refit | |
2340 | const AliITSRecPoint *cl=(AliITSRecPoint *)GetCluster(idx); | |
2341 | if (cl) { | |
2342 | if (idet != cl->GetDetectorIndex()) { | |
2343 | idet=cl->GetDetectorIndex(); | |
a5d0fae6 | 2344 | const AliITSdetector &detc=layer.GetDetector(idet); |
2345 | if (!track->Propagate(detc.GetPhi(),detc.GetR())) return kFALSE; | |
ae00569a | 2346 | track->SetDetectorIndex(idet); |
d1181f10 | 2347 | if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords |
ae00569a | 2348 | } |
ae00569a | 2349 | Int_t cllayer = (idx & 0xf0000000) >> 28;; |
2350 | Double_t chi2=GetPredictedChi2MI(track,cl,cllayer); | |
2351 | if (chi2<maxchi2) { | |
2352 | clAcc=cl; | |
2353 | maxchi2=chi2; | |
2354 | modstatus = 1; // found | |
2355 | } else { | |
7167ae53 | 2356 | return kFALSE; // |
ae00569a | 2357 | } |
2358 | } | |
2359 | } else { // no cluster in this layer | |
2360 | if (skip==1) { | |
2361 | modstatus = 3; // skipped | |
0ed58a47 | 2362 | // Plane Eff determination: |
2363 | if (planeeff && ilayer==AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()) { | |
2364 | if (IsOKForPlaneEff(track,clusters,ilayer)) // only adequate track for plane eff. evaluation | |
2365 | UseTrackForPlaneEff(track,ilayer); | |
7167ae53 | 2366 | } |
ae00569a | 2367 | } else { |
2368 | modstatus = 5; // no cls in road | |
2369 | // check dead | |
1c97ce2f | 2370 | if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE; |
2371 | dz = 0.5*(zmax-zmin); | |
2372 | dy = 0.5*(ymax-ymin); | |
2373 | Int_t dead = CheckDeadZone(track,ilayer,idet,dz,dy,kTRUE); | |
ae00569a | 2374 | if (dead==1) modstatus = 7; // holes in z in SPD |
f8720bda | 2375 | if (dead==2 || dead==3 || dead==4) modstatus = 2; // dead from OCDB |
ae00569a | 2376 | } |
e43c066c | 2377 | } |
ae00569a | 2378 | |
2379 | if (clAcc) { | |
2380 | if (!UpdateMI(track,clAcc,maxchi2,idx)) return kFALSE; | |
09cf9d66 | 2381 | track->SetSampledEdx(clAcc->GetQ(),ilayer-2); |
e43c066c | 2382 | } |
ae00569a | 2383 | track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); |
2384 | ||
2385 | ||
2386 | if (extra) { // search for extra clusters in overlapped modules | |
2387 | AliITStrackV2 tmp(*track); | |
1c97ce2f | 2388 | if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE; |
2389 | layer.SelectClusters(zmin,zmax,ymin,ymax); | |
ae00569a | 2390 | |
2391 | const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1; | |
2392 | Int_t idetExtra=-1; | |
a5d0fae6 | 2393 | maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(); |
2394 | Double_t tolerance=0.1; | |
ae00569a | 2395 | while ((clExtra=layer.GetNextCluster(ci))!=0) { |
2396 | // only clusters in another module! (overlaps) | |
2397 | idetExtra = clExtra->GetDetectorIndex(); | |
2398 | if (idet == idetExtra) continue; | |
2399 | ||
a5d0fae6 | 2400 | const AliITSdetector &detx=layer.GetDetector(idetExtra); |
ae00569a | 2401 | |
1c97ce2f | 2402 | if (!tmp.Propagate(detx.GetPhi(),detx.GetR()+clExtra->GetX())) continue; |
ae00569a | 2403 | if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue; |
2404 | if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) continue; | |
1c97ce2f | 2405 | if (!tmp.Propagate(detx.GetPhi(),detx.GetR())) continue; |
ae00569a | 2406 | |
2407 | Double_t chi2=tmp.GetPredictedChi2(clExtra); | |
2408 | if (chi2<maxchi2) { maxchi2=chi2; cci=ci; } | |
2409 | } | |
2410 | if (cci>=0) { | |
2411 | track->SetExtraCluster(ilayer,(ilayer<<28)+cci); | |
2412 | track->SetExtraModule(ilayer,idetExtra); | |
2413 | } | |
2414 | } // end search for extra clusters in overlapped modules | |
1c97ce2f | 2415 | |
afd25725 | 2416 | // Correct for material of the current layer |
7131593b | 2417 | // cross material |
2418 | // add time if going outward | |
ae00569a | 2419 | if(!CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir)) return kFALSE; |
545af9ef | 2420 | track->SetCheckInvariant(kTRUE); |
ae00569a | 2421 | } // end loop on layers |
2422 | ||
db355ee7 | 2423 | if (!track->PropagateTo(xx,0.,0.)) return kFALSE; |
e43c066c | 2424 | |
e43c066c | 2425 | return kTRUE; |
2426 | } | |
44347160 | 2427 | //------------------------------------------------------------------------ |
15dd636f | 2428 | Double_t AliITStrackerMI::GetNormalizedChi2(AliITStrackMI * track, Int_t mode) |
e43c066c | 2429 | { |
2430 | // | |
2431 | // calculate normalized chi2 | |
2432 | // return NormalizedChi2(track,0); | |
2433 | Float_t chi2 = 0; | |
2434 | Float_t sum=0; | |
2435 | Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack); | |
2436 | // track->fdEdxMismatch=0; | |
2437 | Float_t dedxmismatch =0; | |
2438 | Float_t *ny = GetNy(fCurrentEsdTrack), *nz = GetNz(fCurrentEsdTrack); | |
2439 | if (mode<100){ | |
2440 | for (Int_t i = 0;i<6;i++){ | |
9fd412a8 | 2441 | if (track->GetClIndex(i)>=0){ |
e43c066c | 2442 | Float_t cerry, cerrz; |
2443 | if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];} | |
2444 | else | |
b9671574 | 2445 | { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);} |
e43c066c | 2446 | cerry*=cerry; |
2447 | cerrz*=cerrz; | |
b9671574 | 2448 | Float_t cchi2 = (track->GetDy(i)*track->GetDy(i)/cerry)+(track->GetDz(i)*track->GetDz(i)/cerrz); |
572f41f9 | 2449 | if (i>1 && AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(i)) { |
b9671574 | 2450 | Float_t ratio = track->GetNormQ(i)/track->GetExpQ(); |
e43c066c | 2451 | if (ratio<0.5) { |
2452 | cchi2+=(0.5-ratio)*10.; | |
2453 | //track->fdEdxMismatch+=(0.5-ratio)*10.; | |
2454 | dedxmismatch+=(0.5-ratio)*10.; | |
2455 | } | |
2456 | } | |
2457 | if (i<2 ||i>3){ | |
b9671574 | 2458 | AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster( track->GetClIndex(i)); |
e43c066c | 2459 | Double_t delta = cl->GetNy()+cl->GetNz()-ny[i]-nz[i]; |
2460 | if (delta>1) chi2 +=0.5*TMath::Min(delta/2,2.); | |
2461 | if (i<2) chi2+=2*cl->GetDeltaProbability(); | |
2462 | } | |
2463 | chi2+=cchi2; | |
2464 | sum++; | |
2465 | } | |
2466 | } | |
b9671574 | 2467 | if (TMath::Abs(track->GetdEdxMismatch()-dedxmismatch)>0.0001){ |
2468 | track->SetdEdxMismatch(dedxmismatch); | |
e43c066c | 2469 | } |
2470 | } | |
2471 | else{ | |
2472 | for (Int_t i = 0;i<4;i++){ | |
9fd412a8 | 2473 | if (track->GetClIndex(i)>=0){ |
e43c066c | 2474 | Float_t cerry, cerrz; |
2475 | if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];} | |
b9671574 | 2476 | else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);} |
e43c066c | 2477 | cerry*=cerry; |
2478 | cerrz*=cerrz; | |
b9671574 | 2479 | chi2+= (track->GetDy(i)*track->GetDy(i)/cerry); |
2480 | chi2+= (track->GetDz(i)*track->GetDz(i)/cerrz); | |
e43c066c | 2481 | sum++; |
2482 | } | |
2483 | } | |
2484 | for (Int_t i = 4;i<6;i++){ | |
9fd412a8 | 2485 | if (track->GetClIndex(i)>=0){ |
e43c066c | 2486 | Float_t cerry, cerrz; |
2487 | if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];} | |
b9671574 | 2488 | else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);} |
e43c066c | 2489 | cerry*=cerry; |
2490 | cerrz*=cerrz; | |
2491 | Float_t cerryb, cerrzb; | |
2492 | if (ny[i+6]>0) {cerryb = erry[i+6]; cerrzb=errz[i+6];} | |
b9671574 | 2493 | else { cerryb= track->GetSigmaY(i+6); cerrzb = track->GetSigmaZ(i+6);} |
e43c066c | 2494 | cerryb*=cerryb; |
2495 | cerrzb*=cerrzb; | |
b9671574 | 2496 | chi2+= TMath::Min((track->GetDy(i+6)*track->GetDy(i+6)/cerryb),track->GetDy(i)*track->GetDy(i)/cerry); |
2497 | chi2+= TMath::Min((track->GetDz(i+6)*track->GetDz(i+6)/cerrzb),track->GetDz(i)*track->GetDz(i)/cerrz); | |
e43c066c | 2498 | sum++; |
2499 | } | |
2500 | } | |
2501 | } | |
b9671574 | 2502 | if (track->GetESDtrack()->GetTPCsignal()>85){ |
2503 | Float_t ratio = track->GetdEdx()/track->GetESDtrack()->GetTPCsignal(); | |
e43c066c | 2504 | if (ratio<0.5) { |
2505 | chi2+=(0.5-ratio)*5.; | |
2506 | } | |
2507 | if (ratio>2){ | |
2508 | chi2+=(ratio-2.0)*3; | |
2509 | } | |
2510 | } | |
2511 | // | |
b9671574 | 2512 | Double_t match = TMath::Sqrt(track->GetChi22()); |
2513 | if (track->GetConstrain()) match/=track->GetNumberOfClusters(); | |
2755f080 | 2514 | if (!track->GetConstrain()) { |
2515 | if (track->GetNumberOfClusters()>2) { | |
2516 | match/=track->GetNumberOfClusters()-2.; | |
2517 | } else { | |
2518 | match=0; | |
2519 | } | |
2520 | } | |
e43c066c | 2521 | if (match<0) match=0; |
f8720bda | 2522 | |
2523 | // penalty factor for missing points (NDeadZone>0), but no penalty | |
2524 | // for layer with deadZoneProb close to 1 (either we wanted to skip layer | |
2525 | // or there is a dead from OCDB) | |
2526 | Float_t deadzonefactor = 0.; | |
2527 | if (track->GetNDeadZone()>0.) { | |
bf1cd124 | 2528 | Int_t sumDeadZoneProbability=0; |
2529 | for(Int_t ilay=0;ilay<6;ilay++) { | |
2530 | if(track->GetDeadZoneProbability(ilay)>0.) sumDeadZoneProbability++; | |
2531 | } | |
2532 | Int_t nDeadZoneWithProbNot1=(Int_t)(track->GetNDeadZone())-sumDeadZoneProbability; | |
2533 | if(nDeadZoneWithProbNot1>0) { | |
2534 | Float_t deadZoneProbability = track->GetNDeadZone()-(Float_t)sumDeadZoneProbability; | |
2535 | AliDebug(2,Form("nDeadZone %f sumDZProbability %f nDZWithProbNot1 %f deadZoneProb %f\n",track->GetNDeadZone(),sumDeadZoneProbability,nDeadZoneWithProbNot1,deadZoneProbability)); | |
2536 | deadZoneProbability /= (Float_t)nDeadZoneWithProbNot1; | |
2537 | Float_t one = 1.; | |
2538 | deadZoneProbability = TMath::Min(deadZoneProbability,one); | |
f8720bda | 2539 | deadzonefactor = 3.*(1.1-deadZoneProbability); |
2540 | } | |
2541 | } | |
2542 | ||
b9671574 | 2543 | Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())* |
2544 | (chi2)/TMath::Max(double(sum-track->GetNSkipped()), | |
2545 | 1./(1.+track->GetNSkipped())); | |
bf1cd124 | 2546 | AliDebug(2,Form("match %f deadzonefactor %f chi2 %f sum %f skipped\n",match,deadzonefactor,chi2,sum,track->GetNSkipped())); |
2547 | AliDebug(2,Form("NormChi2 %f cls %d\n",normchi2,track->GetNumberOfClusters())); | |
2548 | return normchi2; | |
e43c066c | 2549 | } |
44347160 | 2550 | //------------------------------------------------------------------------ |
a70ed6ad | 2551 | Double_t AliITStrackerMI::GetMatchingChi2(const AliITStrackMI * track1,const AliITStrackMI * track2) |
e43c066c | 2552 | { |
2553 | // | |
2554 | // return matching chi2 between two tracks | |
d1181f10 | 2555 | Double_t largeChi2=1000.; |
2556 | ||
15dd636f | 2557 | AliITStrackMI track3(*track2); |
d1181f10 | 2558 | if (!track3.Propagate(track1->GetAlpha(),track1->GetX())) return largeChi2; |
e43c066c | 2559 | TMatrixD vec(5,1); |
6c94f330 | 2560 | vec(0,0)=track1->GetY() - track3.GetY(); |
2561 | vec(1,0)=track1->GetZ() - track3.GetZ(); | |
2562 | vec(2,0)=track1->GetSnp() - track3.GetSnp(); | |
2563 | vec(3,0)=track1->GetTgl() - track3.GetTgl(); | |
6c23ffed | 2564 | vec(4,0)=track1->GetSigned1Pt() - track3.GetSigned1Pt(); |
e43c066c | 2565 | // |
2566 | TMatrixD cov(5,5); | |
6c94f330 | 2567 | cov(0,0) = track1->GetSigmaY2()+track3.GetSigmaY2(); |
2568 | cov(1,1) = track1->GetSigmaZ2()+track3.GetSigmaZ2(); | |
2569 | cov(2,2) = track1->GetSigmaSnp2()+track3.GetSigmaSnp2(); | |
2570 | cov(3,3) = track1->GetSigmaTgl2()+track3.GetSigmaTgl2(); | |
2571 | cov(4,4) = track1->GetSigma1Pt2()+track3.GetSigma1Pt2(); | |
e43c066c | 2572 | |
6c94f330 | 2573 | cov(0,1)=cov(1,0) = track1->GetSigmaZY()+track3.GetSigmaZY(); |
2574 | cov(0,2)=cov(2,0) = track1->GetSigmaSnpY()+track3.GetSigmaSnpY(); | |
2575 | cov(0,3)=cov(3,0) = track1->GetSigmaTglY()+track3.GetSigmaTglY(); | |
2576 | cov(0,4)=cov(4,0) = track1->GetSigma1PtY()+track3.GetSigma1PtY(); | |
e43c066c | 2577 | // |
6c94f330 | 2578 | cov(1,2)=cov(2,1) = track1->GetSigmaSnpZ()+track3.GetSigmaSnpZ(); |
2579 | cov(1,3)=cov(3,1) = track1->GetSigmaTglZ()+track3.GetSigmaTglZ(); | |
2580 | cov(1,4)=cov(4,1) = track1->GetSigma1PtZ()+track3.GetSigma1PtZ(); | |
e43c066c | 2581 | // |
6c94f330 | 2582 | cov(2,3)=cov(3,2) = track1->GetSigmaTglSnp()+track3.GetSigmaTglSnp(); |
2583 | cov(2,4)=cov(4,2) = track1->GetSigma1PtSnp()+track3.GetSigma1PtSnp(); | |
e43c066c | 2584 | // |
6c94f330 | 2585 | cov(3,4)=cov(4,3) = track1->GetSigma1PtTgl()+track3.GetSigma1PtTgl(); |
e43c066c | 2586 | |
2587 | cov.Invert(); | |
2588 | TMatrixD vec2(cov,TMatrixD::kMult,vec); | |
2589 | TMatrixD chi2(vec2,TMatrixD::kTransposeMult,vec); | |
2590 | return chi2(0,0); | |
2591 | } | |
44347160 | 2592 | //------------------------------------------------------------------------ |
a70ed6ad | 2593 | Double_t AliITStrackerMI::GetSPDDeadZoneProbability(Double_t zpos, Double_t zerr) const |
e43c066c | 2594 | { |
2595 | // | |
afd25725 | 2596 | // return probability that given point (characterized by z position and error) |
2597 | // is in SPD dead zone | |
bf1cd124 | 2598 | // This method assumes that fSPDdetzcentre is ordered from -z to +z |
e43c066c | 2599 | // |
afd25725 | 2600 | Double_t probability = 0.; |
bf1cd124 | 2601 | Double_t nearestz = 0.,distz=0.; |
2602 | Int_t nearestzone = -1; | |
2603 | Double_t mindistz = 1000.; | |
2604 | ||
2605 | // find closest dead zone | |
2606 | for (Int_t i=0; i<3; i++) { | |
2607 | distz=TMath::Abs(zpos-0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1])); | |
2608 | if (distz<mindistz) { | |
2609 | nearestzone=i; | |
2610 | nearestz=0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1]); | |
2611 | mindistz=distz; | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | // too far from dead zone | |
2616 | if (TMath::Abs(zpos-nearestz)>0.25+3.*zerr) return probability; | |
2617 | ||
2618 | ||
afd25725 | 2619 | Double_t zmin, zmax; |
bf1cd124 | 2620 | if (nearestzone==0) { // dead zone at z = -7 |
e50912db | 2621 | zmin = fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(); |
2622 | zmax = fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
bf1cd124 | 2623 | } else if (nearestzone==1) { // dead zone at z = 0 |
e50912db | 2624 | zmin = fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(); |
2625 | zmax = fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
bf1cd124 | 2626 | } else if (nearestzone==2) { // dead zone at z = +7 |
2627 | zmin = fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
2628 | zmax = fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
afd25725 | 2629 | } else { |
2630 | zmin = 0.; | |
2631 | zmax = 0.; | |
e43c066c | 2632 | } |
afd25725 | 2633 | // probability that the true z is in the range [zmin,zmax] (i.e. inside |
2634 | // dead zone) | |
bb7e41dd | 2635 | probability = 0.5*( AliMathBase::ErfFast((zpos-zmin)/zerr/TMath::Sqrt(2.)) - |
2636 | AliMathBase::ErfFast((zpos-zmax)/zerr/TMath::Sqrt(2.)) ); | |
bf1cd124 | 2637 | AliDebug(2,Form("zpos %f +- %f nearestzone %d zmin zmax %f %f prob %f\n",zpos,zerr,nearestzone,zmin,zmax,probability)); |
e43c066c | 2638 | return probability; |
2639 | } | |
44347160 | 2640 | //------------------------------------------------------------------------ |
a70ed6ad | 2641 | Double_t AliITStrackerMI::GetTruncatedChi2(const AliITStrackMI * track, Float_t fac) |
e43c066c | 2642 | { |
2643 | // | |
2644 | // calculate normalized chi2 | |
2645 | Float_t chi2[6]; | |
2646 | Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack); | |
2647 | Float_t ncl = 0; | |
2648 | for (Int_t i = 0;i<6;i++){ | |
b9671574 | 2649 | if (TMath::Abs(track->GetDy(i))>0){ |
2650 | chi2[i]= (track->GetDy(i)/erry[i])*(track->GetDy(i)/erry[i]); | |
2651 | chi2[i]+= (track->GetDz(i)/errz[i])*(track->GetDz(i)/errz[i]); | |
e43c066c | 2652 | ncl++; |
2653 | } | |
2654 | else{chi2[i]=10000;} | |
2655 | } | |
2656 | Int_t index[6]; | |
2657 | TMath::Sort(6,chi2,index,kFALSE); | |
2658 | Float_t max = float(ncl)*fac-1.; | |
2659 | Float_t sumchi=0, sumweight=0; | |
2660 | for (Int_t i=0;i<max+1;i++){ | |
2661 | Float_t weight = (i<max)?1.:(max+1.-i); | |
2662 | sumchi+=weight*chi2[index[i]]; | |
2663 | sumweight+=weight; | |
2664 | } | |
2665 | Double_t normchi2 = sumchi/sumweight; | |
2666 | return normchi2; | |
2667 | } | |
44347160 | 2668 | //------------------------------------------------------------------------ |
a70ed6ad | 2669 | Double_t AliITStrackerMI::GetInterpolatedChi2(const AliITStrackMI * forwardtrack,const AliITStrackMI * backtrack) |
e43c066c | 2670 | { |
2671 | // | |
2672 | // calculate normalized chi2 | |
2673 | // if (forwardtrack->fNUsed>0.3*float(forwardtrack->GetNumberOfClusters())) return 10000; | |
2674 | Int_t npoints = 0; | |
2675 | Double_t res =0; | |
2676 | for (Int_t i=0;i<6;i++){ | |
b9671574 | 2677 | if ( (backtrack->GetSigmaY(i)<0.000000001) || (forwardtrack->GetSigmaY(i)<0.000000001)) continue; |
2678 | Double_t sy1 = forwardtrack->GetSigmaY(i); | |
2679 | Double_t sz1 = forwardtrack->GetSigmaZ(i); | |
2680 | Double_t sy2 = backtrack->GetSigmaY(i); | |
2681 | Double_t sz2 = backtrack->GetSigmaZ(i); | |
e43c066c | 2682 | if (i<2){ sy2=1000.;sz2=1000;} |
2683 | // | |
b9671574 | 2684 | Double_t dy0 = (forwardtrack->GetDy(i)/(sy1*sy1) +backtrack->GetDy(i)/(sy2*sy2))/(1./(sy1*sy1)+1./(sy2*sy2)); |
2685 | Double_t dz0 = (forwardtrack->GetDz(i)/(sz1*sz1) +backtrack->GetDz(i)/(sz2*sz2))/(1./(sz1*sz1)+1./(sz2*sz2)); | |
e43c066c | 2686 | // |
2687 | Double_t nz0 = dz0*TMath::Sqrt((1./(sz1*sz1)+1./(sz2*sz2))); | |
2688 | Double_t ny0 = dy0*TMath::Sqrt((1./(sy1*sy1)+1./(sy2*sy2))); | |
2689 | // | |
2690 | res+= nz0*nz0+ny0*ny0; | |
2691 | npoints++; | |
2692 | } | |
2693 | if (npoints>1) return | |
6c23ffed | 2694 | TMath::Max(0.3*forwardtrack->OneOverPt()-0.5,0.)+ |
e43c066c | 2695 | //2*forwardtrack->fNUsed+ |
b9671574 | 2696 | res/TMath::Max(double(npoints-forwardtrack->GetNSkipped()), |
2697 | 1./(1.+forwardtrack->GetNSkipped())); | |
e43c066c | 2698 | return 1000; |
2699 | } | |
44347160 | 2700 | //------------------------------------------------------------------------ |
e43c066c | 2701 | Float_t *AliITStrackerMI::GetWeight(Int_t index) { |
2702 | //-------------------------------------------------------------------- | |
2703 | // Return pointer to a given cluster | |
2704 | //-------------------------------------------------------------------- | |
2705 | Int_t l=(index & 0xf0000000) >> 28; | |
2706 | Int_t c=(index & 0x0fffffff) >> 00; | |
2707 | return fgLayers[l].GetWeight(c); | |
2708 | } | |
44347160 | 2709 | //------------------------------------------------------------------------ |
a70ed6ad | 2710 | void AliITStrackerMI::RegisterClusterTracks(const AliITStrackMI* track,Int_t id) |
e43c066c | 2711 | { |
2712 | //--------------------------------------------- | |
2713 | // register track to the list | |
628e7bb0 | 2714 | // |
b9671574 | 2715 | if (track->GetESDtrack()->GetKinkIndex(0)!=0) return; //don't register kink tracks |
628e7bb0 | 2716 | // |
2717 | // | |
e43c066c | 2718 | for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){ |
2719 | Int_t index = track->GetClusterIndex(icluster); | |
2720 | Int_t l=(index & 0xf0000000) >> 28; | |
2721 | Int_t c=(index & 0x0fffffff) >> 00; | |
b9671574 | 2722 | if (c>fgLayers[l].GetNumberOfClusters()) continue; |
e43c066c | 2723 | for (Int_t itrack=0;itrack<4;itrack++){ |
b9671574 | 2724 | if (fgLayers[l].GetClusterTracks(itrack,c)<0){ |
2725 | fgLayers[l].SetClusterTracks(itrack,c,id); | |
e43c066c | 2726 | break; |
2727 | } | |
2728 | } | |
2729 | } | |
2730 | } | |
44347160 | 2731 | //------------------------------------------------------------------------ |
a70ed6ad | 2732 | void AliITStrackerMI::UnRegisterClusterTracks(const AliITStrackMI* track, Int_t id) |
e43c066c | 2733 | { |
2734 | //--------------------------------------------- | |
2735 | // unregister track from the list | |
2736 | for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){ | |
2737 | Int_t index = track->GetClusterIndex(icluster); | |
2738 | Int_t l=(index & 0xf0000000) >> 28; | |
2739 | Int_t c=(index & 0x0fffffff) >> 00; | |
b9671574 | 2740 | if (c>fgLayers[l].GetNumberOfClusters()) continue; |
e43c066c | 2741 | for (Int_t itrack=0;itrack<4;itrack++){ |
b9671574 | 2742 | if (fgLayers[l].GetClusterTracks(itrack,c)==id){ |
2743 | fgLayers[l].SetClusterTracks(itrack,c,-1); | |
e43c066c | 2744 | } |
2745 | } | |
2746 | } | |
2747 | } | |
44347160 | 2748 | //------------------------------------------------------------------------ |
00a7cc50 | 2749 | Float_t AliITStrackerMI::GetNumberOfSharedClusters(AliITStrackMI* track,Int_t id, Int_t list[6], AliITSRecPoint *clist[6]) |
e43c066c | 2750 | { |
2751 | //------------------------------------------------------------- | |
2752 | //get number of shared clusters | |
2753 | //------------------------------------------------------------- | |
2754 | Float_t shared=0; | |
2755 | for (Int_t i=0;i<6;i++) { list[i]=-1, clist[i]=0;} | |
2756 | // mean number of clusters | |
2757 | Float_t *ny = GetNy(id), *nz = GetNz(id); | |
2758 | ||
2759 | ||
2760 | for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){ | |
2761 | Int_t index = track->GetClusterIndex(icluster); | |
2762 | Int_t l=(index & 0xf0000000) >> 28; | |
2763 | Int_t c=(index & 0x0fffffff) >> 00; | |
b9671574 | 2764 | if (c>fgLayers[l].GetNumberOfClusters()) continue; |
e43c066c | 2765 | if (ny[l]==0){ |
2766 | printf("problem\n"); | |
2767 | } | |
00a7cc50 | 2768 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index); |
e43c066c | 2769 | Float_t weight=1; |
2770 | // | |
2771 | Float_t deltan = 0; | |
2772 | if (l>3&&cl->GetNy()+cl->GetNz()>6) continue; | |
572f41f9 | 2773 | if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l)) |
2774 | if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue; | |
e43c066c | 2775 | if (l<2 || l>3){ |
2776 | deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]); | |
2777 | } | |
2778 | else{ | |
2779 | deltan = (cl->GetNz()-nz[l]); | |
2780 | } | |
2781 | if (deltan>2.0) continue; // extended - highly probable shared cluster | |
2782 | weight = 2./TMath::Max(3.+deltan,2.); | |
2783 | // | |
2784 | for (Int_t itrack=0;itrack<4;itrack++){ | |
b9671574 | 2785 | if (fgLayers[l].GetClusterTracks(itrack,c)>=0 && fgLayers[l].GetClusterTracks(itrack,c)!=id){ |
e43c066c | 2786 | list[l]=index; |
00a7cc50 | 2787 | clist[l] = (AliITSRecPoint*)GetCluster(index); |
e43c066c | 2788 | shared+=weight; |
2789 | break; | |
2790 | } | |
2791 | } | |
2792 | } | |
b9671574 | 2793 | track->SetNUsed(shared); |
e43c066c | 2794 | return shared; |
2795 | } | |
44347160 | 2796 | //------------------------------------------------------------------------ |
a70ed6ad | 2797 | Int_t AliITStrackerMI::GetOverlapTrack(const AliITStrackMI *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6],Int_t overlist[6]) |
e43c066c | 2798 | { |
2799 | // | |
2800 | // find first shared track | |
2801 | // | |
2802 | // mean number of clusters | |
2803 | Float_t *ny = GetNy(trackID), *nz = GetNz(trackID); | |
2804 | // | |
2805 | for (Int_t i=0;i<6;i++) overlist[i]=-1; | |
2806 | Int_t sharedtrack=100000; | |
2807 | Int_t tracks[24],trackindex=0; | |
2808 | for (Int_t i=0;i<24;i++) {tracks[i]=-1;} | |
2809 | // | |
2810 | for (Int_t icluster=0;icluster<6;icluster++){ | |
2811 | if (clusterlist[icluster]<0) continue; | |
2812 | Int_t index = clusterlist[icluster]; | |
2813 | Int_t l=(index & 0xf0000000) >> 28; | |
2814 | Int_t c=(index & 0x0fffffff) >> 00; | |
2815 | if (ny[l]==0){ | |
2816 | printf("problem\n"); | |
2817 | } | |
b9671574 | 2818 | if (c>fgLayers[l].GetNumberOfClusters()) continue; |
e43c066c | 2819 | //if (l>3) continue; |
00a7cc50 | 2820 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index); |
e43c066c | 2821 | // |
2822 | Float_t deltan = 0; | |
2823 | if (l>3&&cl->GetNy()+cl->GetNz()>6) continue; | |
572f41f9 | 2824 | if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l)) |
2825 | if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue; | |
e43c066c | 2826 | if (l<2 || l>3){ |
2827 | deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]); | |
2828 | } | |
2829 | else{ | |
2830 | deltan = (cl->GetNz()-nz[l]); | |
2831 | } | |
2832 | if (deltan>2.0) continue; // extended - highly probable shared cluster | |
2833 | // | |
2834 | for (Int_t itrack=3;itrack>=0;itrack--){ | |
b9671574 | 2835 | if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue; |
2836 | if (fgLayers[l].GetClusterTracks(itrack,c)!=trackID){ | |
2837 | tracks[trackindex] = fgLayers[l].GetClusterTracks(itrack,c); | |
e43c066c | 2838 | trackindex++; |
2839 | } | |
2840 | } | |
2841 | } | |
2842 | if (trackindex==0) return -1; | |
2843 | if (trackindex==1){ | |
2844 | sharedtrack = tracks[0]; | |
2845 | }else{ | |
2846 | if (trackindex==2) sharedtrack =TMath::Min(tracks[0],tracks[1]); | |
2847 | else{ | |
2848 | // | |
a5d0fae6 | 2849 | Int_t tracks2[24], cluster[24]; |
2850 | for (Int_t i=0;i<trackindex;i++){ tracks2[i]=-1; cluster[i]=0;} | |
e43c066c | 2851 | Int_t index =0; |
2852 | // | |
2853 | for (Int_t i=0;i<trackindex;i++){ | |
2854 | if (tracks[i]<0) continue; | |
a5d0fae6 | 2855 | tracks2[index] = tracks[i]; |
e43c066c | 2856 | cluster[index]++; |
2857 | for (Int_t j=i+1;j<trackindex;j++){ | |
2858 | if (tracks[j]<0) continue; | |
2859 | if (tracks[j]==tracks[i]){ | |
2860 | cluster[index]++; | |
2861 | tracks[j]=-1; | |
2862 | } | |
2863 | } | |
2864 | index++; | |
2865 | } | |
2866 | Int_t max=0; | |
2867 | for (Int_t i=0;i<index;i++){ | |
2868 | if (cluster[index]>max) { | |
a5d0fae6 | 2869 | sharedtrack=tracks2[index]; |
e43c066c | 2870 | max=cluster[index]; |
2871 | } | |
2872 | } | |
2873 | } | |
2874 | } | |
2875 | ||
2876 | if (sharedtrack>=100000) return -1; | |
2877 | // | |
2878 | // make list of overlaps | |
2879 | shared =0; | |
2880 | for (Int_t icluster=0;icluster<6;icluster++){ | |
2881 | if (clusterlist[icluster]<0) continue; | |
2882 | Int_t index = clusterlist[icluster]; | |
2883 | Int_t l=(index & 0xf0000000) >> 28; | |
2884 | Int_t c=(index & 0x0fffffff) >> 00; | |
b9671574 | 2885 | if (c>fgLayers[l].GetNumberOfClusters()) continue; |
00a7cc50 | 2886 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index); |
e43c066c | 2887 | if (l==0 || l==1){ |
2888 | if (cl->GetNy()>2) continue; | |
2889 | if (cl->GetNz()>2) continue; | |
2890 | } | |
2891 | if (l==4 || l==5){ | |
2892 | if (cl->GetNy()>3) continue; | |
2893 | if (cl->GetNz()>3) continue; | |
2894 | } | |
2895 | // | |
2896 | for (Int_t itrack=3;itrack>=0;itrack--){ | |
b9671574 | 2897 | if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue; |
2898 | if (fgLayers[l].GetClusterTracks(itrack,c)==sharedtrack){ | |
e43c066c | 2899 | overlist[l]=index; |
2900 | shared++; | |
2901 | } | |
2902 | } | |
2903 | } | |
2904 | return sharedtrack; | |
2905 | } | |
44347160 | 2906 | //------------------------------------------------------------------------ |
15dd636f | 2907 | AliITStrackMI * AliITStrackerMI::GetBest2Tracks(Int_t trackID1, Int_t trackID2, Float_t th0, Float_t th1){ |
e43c066c | 2908 | // |
2909 | // try to find track hypothesys without conflicts | |
2910 | // with minimal chi2; | |
2911 | TClonesArray *arr1 = (TClonesArray*)fTrackHypothesys.At(trackID1); | |
2912 | Int_t entries1 = arr1->GetEntriesFast(); | |
2913 | TClonesArray *arr2 = (TClonesArray*)fTrackHypothesys.At(trackID2); | |
15dd636f | 2914 | if (!arr2) return (AliITStrackMI*) arr1->UncheckedAt(0); |
e43c066c | 2915 | Int_t entries2 = arr2->GetEntriesFast(); |
15dd636f | 2916 | if (entries2<=0) return (AliITStrackMI*) arr1->UncheckedAt(0); |
e43c066c | 2917 | // |
15dd636f | 2918 | AliITStrackMI * track10=(AliITStrackMI*) arr1->UncheckedAt(0); |
2919 | AliITStrackMI * track20=(AliITStrackMI*) arr2->UncheckedAt(0); | |
6c23ffed | 2920 | if (track10->Pt()>0.5+track20->Pt()) return track10; |
e43c066c | 2921 | |
2922 | for (Int_t itrack=0;itrack<entries1;itrack++){ | |
15dd636f | 2923 | AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack); |
e43c066c | 2924 | UnRegisterClusterTracks(track,trackID1); |
2925 | } | |
2926 | // | |
2927 | for (Int_t itrack=0;itrack<entries2;itrack++){ | |
15dd636f | 2928 | AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack); |
e43c066c | 2929 | UnRegisterClusterTracks(track,trackID2); |
2930 | } | |
2931 | Int_t index1=0; | |
2932 | Int_t index2=0; | |
2933 | Float_t maxconflicts=6; | |
2934 | Double_t maxchi2 =1000.; | |
2935 | // | |
2936 | // get weight of hypothesys - using best hypothesy | |
2937 | Double_t w1,w2; | |
2938 | ||
2939 | Int_t list1[6],list2[6]; | |
00a7cc50 | 2940 | AliITSRecPoint *clist1[6], *clist2[6] ; |
e43c066c | 2941 | RegisterClusterTracks(track10,trackID1); |
2942 | RegisterClusterTracks(track20,trackID2); | |
2943 | Float_t conflict1 = GetNumberOfSharedClusters(track10,trackID1,list1,clist1); | |
2944 | Float_t conflict2 = GetNumberOfSharedClusters(track20,trackID2,list2,clist2); | |
2945 | UnRegisterClusterTracks(track10,trackID1); | |
2946 | UnRegisterClusterTracks(track20,trackID2); | |
2947 | // | |
2948 | // normalized chi2 | |
2949 | Float_t chi21 =0,chi22=0,ncl1=0,ncl2=0; | |
2950 | Float_t nerry[6],nerrz[6]; | |
2951 | Float_t *erry1=GetErrY(trackID1),*errz1 = GetErrZ(trackID1); | |
2952 | Float_t *erry2=GetErrY(trackID2),*errz2 = GetErrZ(trackID2); | |
2953 | for (Int_t i=0;i<6;i++){ | |
2954 | if ( (erry1[i]>0) && (erry2[i]>0)) { | |
2955 | nerry[i] = TMath::Min(erry1[i],erry2[i]); | |
2956 | nerrz[i] = TMath::Min(errz1[i],errz2[i]); | |
2957 | }else{ | |
2958 | nerry[i] = TMath::Max(erry1[i],erry2[i]); | |
2959 | nerrz[i] = TMath::Max(errz1[i],errz2[i]); | |
2960 | } | |
b9671574 | 2961 | if (TMath::Abs(track10->GetDy(i))>0.000000000000001){ |
2962 | chi21 += track10->GetDy(i)*track10->GetDy(i)/(nerry[i]*nerry[i]); | |
2963 | chi21 += track10->GetDz(i)*track10->GetDz(i)/(nerrz[i]*nerrz[i]); | |
e43c066c | 2964 | ncl1++; |
2965 | } | |
b9671574 | 2966 | if (TMath::Abs(track20->GetDy(i))>0.000000000000001){ |
2967 | chi22 += track20->GetDy(i)*track20->GetDy(i)/(nerry[i]*nerry[i]); | |
2968 | chi22 += track20->GetDz(i)*track20->GetDz(i)/(nerrz[i]*nerrz[i]); | |
e43c066c | 2969 | ncl2++; |
2970 | } | |
2971 | } | |
2972 | chi21/=ncl1; | |
2973 | chi22/=ncl2; | |
2974 | // | |
2975 | // | |
b9671574 | 2976 | Float_t d1 = TMath::Sqrt(track10->GetD(0)*track10->GetD(0)+track10->GetD(1)*track10->GetD(1))+0.1; |
2977 | Float_t d2 = TMath::Sqrt(track20->GetD(0)*track20->GetD(0)+track20->GetD(1)*track20->GetD(1))+0.1; | |
e43c066c | 2978 | Float_t s1 = TMath::Sqrt(track10->GetSigmaY2()*track10->GetSigmaZ2()); |
2979 | Float_t s2 = TMath::Sqrt(track20->GetSigmaY2()*track20->GetSigmaZ2()); | |
2980 | // | |
2981 | w1 = (d2/(d1+d2)+ 2*s2/(s1+s2)+ | |
2982 | +s2/(s1+s2)*0.5*(chi22+2.)/(chi21+chi22+4.) | |
6c23ffed | 2983 | +1.*track10->Pt()/(track10->Pt()+track20->Pt()) |
e43c066c | 2984 | ); |
2985 | w2 = (d1/(d1+d2)+ 2*s1/(s1+s2)+ | |
2986 | s1/(s1+s2)*0.5*(chi21+2.)/(chi21+chi22+4.) | |
6c23ffed | 2987 | +1.*track20->Pt()/(track10->Pt()+track20->Pt()) |
e43c066c | 2988 | ); |
2989 | ||
2990 | Double_t sumw = w1+w2; | |
2991 | w1/=sumw; | |
2992 | w2/=sumw; | |
2993 | if (w1<w2*0.5) { | |
2994 | w1 = (d2+0.5)/(d1+d2+1.); | |
2995 | w2 = (d1+0.5)/(d1+d2+1.); | |
2996 | } | |
2997 | // Float_t maxmax = w1*track10->fChi2MIP[0]+w2*track20->fChi2MIP[0]+w1*conflict1+w2*conflict2+1.; | |
2998 | //Float_t maxconflicts0 = w1*conflict1+w2*conflict2; | |
2999 | // | |
3000 | // get pair of "best" hypothesys | |
3001 | // | |
3002 | Float_t * ny1 = GetNy(trackID1), * nz1 = GetNz(trackID1); | |
3003 | Float_t * ny2 = GetNy(trackID2), * nz2 = GetNz(trackID2); | |
3004 | ||
3005 | for (Int_t itrack1=0;itrack1<entries1;itrack1++){ | |
15dd636f | 3006 | AliITStrackMI * track1=(AliITStrackMI*) arr1->UncheckedAt(itrack1); |
e43c066c | 3007 | //if (track1->fFakeRatio>0) continue; |
3008 | RegisterClusterTracks(track1,trackID1); | |
3009 | for (Int_t itrack2=0;itrack2<entries2;itrack2++){ | |
15dd636f | 3010 | AliITStrackMI * track2=(AliITStrackMI*) arr2->UncheckedAt(itrack2); |
e43c066c | 3011 | |
3012 | // Float_t current = w1*track1->fChi2MIP[0]+w2*track2->fChi2MIP[0]; | |
3013 | //if (track2->fFakeRatio>0) continue; | |
3014 | Float_t nskipped=0; | |
3015 | RegisterClusterTracks(track2,trackID2); | |
e43c066c | 3016 | Float_t cconflict1 = GetNumberOfSharedClusters(track1,trackID1,list1,clist1); |
3017 | Float_t cconflict2 = GetNumberOfSharedClusters(track2,trackID2,list2,clist2); | |
3018 | UnRegisterClusterTracks(track2,trackID2); | |
3019 | // | |
b9671574 | 3020 | if (track1->GetConstrain()) nskipped+=w1*track1->GetNSkipped(); |
3021 | if (track2->GetConstrain()) nskipped+=w2*track2->GetNSkipped(); | |
e43c066c | 3022 | if (nskipped>0.5) continue; |
3023 | // | |
3024 | //if ( w1*conflict1+w2*conflict2>maxconflicts0) continue; | |
3025 | if (conflict1+1<cconflict1) continue; | |
3026 | if (conflict2+1<cconflict2) continue; | |
3027 | Float_t conflict=0; | |
3028 | Float_t sumchi2=0; | |
3029 | Float_t sum=0; | |
3030 | for (Int_t i=0;i<6;i++){ | |
3031 | // | |
3032 | Float_t c1 =0.; // conflict coeficients | |
3033 | Float_t c2 =0.; | |
3034 | if (clist1[i]&&clist2[i]){ | |
3035 | Float_t deltan = 0; | |
3036 | if (i<2 || i>3){ | |
3037 | deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-TMath::Max(ny1[i],ny2[i])-TMath::Max(nz1[i],nz2[i])); | |
3038 | } | |
3039 | else{ | |
3040 | deltan = (clist1[i]->GetNz()-TMath::Max(nz1[i],nz2[i])); | |
3041 | } | |
3042 | c1 = 2./TMath::Max(3.+deltan,2.); | |
3043 | c2 = 2./TMath::Max(3.+deltan,2.); | |
3044 | } | |
3045 | else{ | |
3046 | if (clist1[i]){ | |
3047 | Float_t deltan = 0; | |
3048 | if (i<2 || i>3){ | |
3049 | deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-ny1[i]-nz1[i]); | |
3050 | } | |
3051 | else{ | |
3052 | deltan = (clist1[i]->GetNz()-nz1[i]); | |
3053 | } | |
3054 | c1 = 2./TMath::Max(3.+deltan,2.); | |
3055 | c2 = 0; | |
3056 | } | |
3057 | ||
3058 | if (clist2[i]){ | |
3059 | Float_t deltan = 0; | |
3060 | if (i<2 || i>3){ | |
3061 | deltan = (clist2[i]->GetNy()+clist2[i]->GetNz()-ny2[i]-nz2[i]); | |
3062 | } | |
3063 | else{ | |
3064 | deltan = (clist2[i]->GetNz()-nz2[i]); | |
3065 | } | |
3066 | c2 = 2./TMath::Max(3.+deltan,2.); | |
3067 | c1 = 0; | |
3068 | } | |
3069 | } | |
3070 | // | |
a5d0fae6 | 3071 | chi21=0;chi22=0; |
b9671574 | 3072 | if (TMath::Abs(track1->GetDy(i))>0.) { |
3073 | chi21 = (track1->GetDy(i)/track1->GetSigmaY(i))*(track1->GetDy(i)/track1->GetSigmaY(i))+ | |
3074 | (track1->GetDz(i)/track1->GetSigmaZ(i))*(track1->GetDz(i)/track1->GetSigmaZ(i)); | |
e43c066c | 3075 | //chi21 = (track1->fDy[i]*track1->fDy[i])/(nerry[i]*nerry[i])+ |
b9671574 | 3076 | // (track1->GetDz(i)*track1->GetDz(i))/(nerrz[i]*nerrz[i]); |
e43c066c | 3077 | }else{ |
b9671574 | 3078 | if (TMath::Abs(track1->GetSigmaY(i)>0.)) c1=1; |
e43c066c | 3079 | } |
3080 | // | |
b9671574 | 3081 | if (TMath::Abs(track2->GetDy(i))>0.) { |
3082 | chi22 = (track2->GetDy(i)/track2->GetSigmaY(i))*(track2->GetDy(i)/track2->GetSigmaY(i))+ | |
3083 | (track2->GetDz(i)/track2->GetSigmaZ(i))*(track2->GetDz(i)/track2->GetSigmaZ(i)); | |
e43c066c | 3084 | //chi22 = (track2->fDy[i]*track2->fDy[i])/(nerry[i]*nerry[i])+ |
3085 | // (track2->fDz[i]*track2->fDz[i])/(nerrz[i]*nerrz[i]); | |
3086 | } | |
3087 | else{ | |
b9671574 | 3088 | if (TMath::Abs(track2->GetSigmaY(i)>0.)) c2=1; |
e43c066c | 3089 | } |
3090 | sumchi2+=w1*(1.+c1)*(1+c1)*(chi21+c1)+w2*(1.+c2)*(1+c2)*(chi22+c2); | |
3091 | if (chi21>0) sum+=w1; | |
3092 | if (chi22>0) sum+=w2; | |
3093 | conflict+=(c1+c2); | |
3094 | } | |
b9671574 | 3095 | Double_t norm = sum-w1*track1->GetNSkipped()-w2*track2->GetNSkipped(); |
3096 | if (norm<0) norm =1/(w1*track1->GetNSkipped()+w2*track2->GetNSkipped()); | |
e43c066c | 3097 | Double_t normchi2 = 2*conflict+sumchi2/sum; |
3098 | if ( normchi2 <maxchi2 ){ | |
3099 | index1 = itrack1; | |
3100 | index2 = itrack2; | |
3101 | maxconflicts = conflict; | |
3102 | maxchi2 = normchi2; | |
3103 | } | |
3104 | } | |
3105 | UnRegisterClusterTracks(track1,trackID1); | |
3106 | } | |
3107 | // | |
3108 | // if (maxconflicts<4 && maxchi2<th0){ | |
3109 | if (maxchi2<th0*2.){ | |
b9671574 | 3110 | Float_t orig = track10->GetFakeRatio()*track10->GetNumberOfClusters(); |
15dd636f | 3111 | AliITStrackMI* track1=(AliITStrackMI*) arr1->UncheckedAt(index1); |
b9671574 | 3112 | track1->SetChi2MIP(5,maxconflicts); |
3113 | track1->SetChi2MIP(6,maxchi2); | |
3114 | track1->SetChi2MIP(7,0.01+orig-(track1->GetFakeRatio()*track1->GetNumberOfClusters())); | |
e43c066c | 3115 | // track1->UpdateESDtrack(AliESDtrack::kITSin); |
b9671574 | 3116 | track1->SetChi2MIP(8,index1); |
e43c066c | 3117 | fBestTrackIndex[trackID1] =index1; |
3118 | UpdateESDtrack(track1, AliESDtrack::kITSin); | |
3119 | } | |
b9671574 | 3120 | else if (track10->GetChi2MIP(0)<th1){ |
3121 | track10->SetChi2MIP(5,maxconflicts); | |
3122 | track10->SetChi2MIP(6,maxchi2); | |
e43c066c | 3123 | // track10->UpdateESDtrack(AliESDtrack::kITSin); |
3124 | UpdateESDtrack(track10,AliESDtrack::kITSin); | |
3125 | } | |
3126 | ||
3127 | for (Int_t itrack=0;itrack<entries1;itrack++){ | |
15dd636f | 3128 | AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack); |
e43c066c | 3129 | UnRegisterClusterTracks(track,trackID1); |
3130 | } | |
3131 | // | |
3132 | for (Int_t itrack=0;itrack<entries2;itrack++){ | |
15dd636f | 3133 | AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack); |
e43c066c | 3134 | UnRegisterClusterTracks(track,trackID2); |
3135 | } | |
3136 | ||
44347160 | 3137 | if (track10->GetConstrain()&&track10->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) |
3138 | &&track10->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
3139 | // if (track10->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) | |
3140 | // &&track10->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
e43c066c | 3141 | RegisterClusterTracks(track10,trackID1); |
3142 | } | |
44347160 | 3143 | if (track20->GetConstrain()&&track20->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) |
3144 | &&track20->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
3145 | //if (track20->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) | |
3146 | // &&track20->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
e43c066c | 3147 | RegisterClusterTracks(track20,trackID2); |
3148 | } | |
3149 | return track10; | |
3150 | ||
3151 | } | |
44347160 | 3152 | //------------------------------------------------------------------------ |
e43c066c | 3153 | void AliITStrackerMI::UseClusters(const AliKalmanTrack *t, Int_t from) const { |
3154 | //-------------------------------------------------------------------- | |
3155 | // This function marks clusters assigned to the track | |
3156 | //-------------------------------------------------------------------- | |
3157 | AliTracker::UseClusters(t,from); | |
3158 | ||
00a7cc50 | 3159 | AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(0)); |
e43c066c | 3160 | //if (c->GetQ()>2) c->Use(); |
3161 | if (c->GetSigmaZ2()>0.1) c->Use(); | |
00a7cc50 | 3162 | c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(1)); |
e43c066c | 3163 | //if (c->GetQ()>2) c->Use(); |
3164 | if (c->GetSigmaZ2()>0.1) c->Use(); | |
3165 | ||
3166 | } | |
44347160 | 3167 | //------------------------------------------------------------------------ |
15dd636f | 3168 | void AliITStrackerMI::AddTrackHypothesys(AliITStrackMI * track, Int_t esdindex) |
e43c066c | 3169 | { |
3170 | //------------------------------------------------------------------ | |
3171 | // add track to the list of hypothesys | |
3172 | //------------------------------------------------------------------ | |
3173 | ||
fddf8459 | 3174 | if (esdindex>=fTrackHypothesys.GetEntriesFast()) |
3175 | fTrackHypothesys.Expand(TMath::Max(fTrackHypothesys.GetSize(),esdindex*2+10)); | |
e43c066c | 3176 | // |
3177 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex); | |
3178 | if (!array) { | |
3179 | array = new TObjArray(10); | |
3180 | fTrackHypothesys.AddAt(array,esdindex); | |
3181 | } | |
3182 | array->AddLast(track); | |
3183 | } | |
44347160 | 3184 | //------------------------------------------------------------------------ |
e43c066c | 3185 | void AliITStrackerMI::SortTrackHypothesys(Int_t esdindex, Int_t maxcut, Int_t mode) |
3186 | { | |
3187 | //------------------------------------------------------------------- | |
3188 | // compress array of track hypothesys | |
3189 | // keep only maxsize best hypothesys | |
3190 | //------------------------------------------------------------------- | |
3191 | if (esdindex>fTrackHypothesys.GetEntriesFast()) return; | |
3192 | if (! (fTrackHypothesys.At(esdindex)) ) return; | |
3193 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex); | |
3194 | Int_t entries = array->GetEntriesFast(); | |
3195 | // | |
3196 | //- find preliminary besttrack as a reference | |
3197 | Float_t minchi2=10000; | |
3198 | Int_t maxn=0; | |
15dd636f | 3199 | AliITStrackMI * besttrack=0; |
e43c066c | 3200 | for (Int_t itrack=0;itrack<array->GetEntriesFast();itrack++){ |
15dd636f | 3201 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); |
e43c066c | 3202 | if (!track) continue; |
3203 | Float_t chi2 = NormalizedChi2(track,0); | |
3204 | // | |
b9671574 | 3205 | Int_t tpcLabel=track->GetESDtrack()->GetTPCLabel(); |
e43c066c | 3206 | track->SetLabel(tpcLabel); |
3207 | CookdEdx(track); | |
b9671574 | 3208 | track->SetFakeRatio(1.); |
e43c066c | 3209 | CookLabel(track,0.); //For comparison only |
3210 | // | |
44347160 | 3211 | //if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track->fFakeRatio==0){ |
3212 | if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){ | |
e43c066c | 3213 | if (track->GetNumberOfClusters()<maxn) continue; |
3214 | maxn = track->GetNumberOfClusters(); | |
3215 | if (chi2<minchi2){ | |
3216 | minchi2=chi2; | |
3217 | besttrack=track; | |
3218 | } | |
3219 | } | |
3220 | else{ | |
b9671574 | 3221 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain |
628e7bb0 | 3222 | delete array->RemoveAt(itrack); |
3223 | } | |
e43c066c | 3224 | } |
3225 | } | |
3226 | if (!besttrack) return; | |
3227 | // | |
3228 | // | |
3229 | //take errors of best track as a reference | |
3230 | Float_t *erry = GetErrY(esdindex), *errz = GetErrZ(esdindex); | |
3231 | Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex); | |
a5d0fae6 | 3232 | for (Int_t j=0;j<6;j++) { |
9fd412a8 | 3233 | if (besttrack->GetClIndex(j)>=0){ |
a5d0fae6 | 3234 | erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6); |
3235 | errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6); | |
3236 | ny[j] = besttrack->GetNy(j); | |
3237 | nz[j] = besttrack->GetNz(j); | |
e43c066c | 3238 | } |
3239 | } | |
3240 | // | |
3241 | // calculate normalized chi2 | |
3242 | // | |
3243 | Float_t * chi2 = new Float_t[entries]; | |
3244 | Int_t * index = new Int_t[entries]; | |
3245 | for (Int_t i=0;i<entries;i++) chi2[i] =10000; | |
3246 | for (Int_t itrack=0;itrack<entries;itrack++){ | |
15dd636f | 3247 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); |
e43c066c | 3248 | if (track){ |
bf1cd124 | 3249 | AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters())); |
b9671574 | 3250 | track->SetChi2MIP(0,GetNormalizedChi2(track, mode)); |
44347160 | 3251 | if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) |
b9671574 | 3252 | chi2[itrack] = track->GetChi2MIP(0); |
628e7bb0 | 3253 | else{ |
b9671574 | 3254 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain |
628e7bb0 | 3255 | delete array->RemoveAt(itrack); |
3256 | } | |
3257 | } | |
e43c066c | 3258 | } |
3259 | } | |
3260 | // | |
3261 | TMath::Sort(entries,chi2,index,kFALSE); | |
15dd636f | 3262 | besttrack = (AliITStrackMI*)array->At(index[0]); |
bf1cd124 | 3263 | if(besttrack) AliDebug(2,Form("ncls best track %d\n",besttrack->GetNumberOfClusters())); |
44347160 | 3264 | if (besttrack&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){ |
a5d0fae6 | 3265 | for (Int_t j=0;j<6;j++){ |
9fd412a8 | 3266 | if (besttrack->GetClIndex(j)>=0){ |
a5d0fae6 | 3267 | erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6); |
3268 | errz[j] = besttrack->GetSigmaZ(j); erry[j+6] = besttrack->GetSigmaY(j+6); | |
3269 | ny[j] = besttrack->GetNy(j); | |
3270 | nz[j] = besttrack->GetNz(j); | |
e43c066c | 3271 | } |
3272 | } | |
3273 | } | |
3274 | // | |
3275 | // calculate one more time with updated normalized errors | |
3276 | for (Int_t i=0;i<entries;i++) chi2[i] =10000; | |
3277 | for (Int_t itrack=0;itrack<entries;itrack++){ | |
15dd636f | 3278 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); |
e43c066c | 3279 | if (track){ |
bf1cd124 | 3280 | track->SetChi2MIP(0,GetNormalizedChi2(track,mode)); |
3281 | AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters())); | |
44347160 | 3282 | if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) |
b9671574 | 3283 | chi2[itrack] = track->GetChi2MIP(0)-0*(track->GetNumberOfClusters()+track->GetNDeadZone()); |
628e7bb0 | 3284 | else |
3285 | { | |
b9671574 | 3286 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain |
628e7bb0 | 3287 | delete array->RemoveAt(itrack); |
3288 | } | |
3289 | } | |
e43c066c | 3290 | } |
3291 | } | |
3292 | entries = array->GetEntriesFast(); | |
3293 | // | |
628e7bb0 | 3294 | // |
e43c066c | 3295 | if (entries>0){ |
3296 | TObjArray * newarray = new TObjArray(); | |
3297 | TMath::Sort(entries,chi2,index,kFALSE); | |
15dd636f | 3298 | besttrack = (AliITStrackMI*)array->At(index[0]); |
e43c066c | 3299 | if (besttrack){ |
bf1cd124 | 3300 | AliDebug(2,Form("ncls best track %d %f %f\n",besttrack->GetNumberOfClusters(),besttrack->GetChi2MIP(0),chi2[index[0]])); |
e43c066c | 3301 | // |
a5d0fae6 | 3302 | for (Int_t j=0;j<6;j++){ |
3303 | if (besttrack->GetNz(j)>0&&besttrack->GetNy(j)>0){ | |
3304 | erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6); | |
3305 | errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6); | |
3306 | ny[j] = besttrack->GetNy(j); | |
3307 | nz[j] = besttrack->GetNz(j); | |
e43c066c | 3308 | } |
3309 | } | |
b9671574 | 3310 | besttrack->SetChi2MIP(0,GetNormalizedChi2(besttrack,mode)); |
a5d0fae6 | 3311 | minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))); |
e43c066c | 3312 | Float_t minn = besttrack->GetNumberOfClusters()-3; |
3313 | Int_t accepted=0; | |
3314 | for (Int_t i=0;i<entries;i++){ | |
15dd636f | 3315 | AliITStrackMI * track = (AliITStrackMI*)array->At(index[i]); |
e43c066c | 3316 | if (!track) continue; |
3317 | if (accepted>maxcut) break; | |
b9671574 | 3318 | track->SetChi2MIP(0,GetNormalizedChi2(track,mode)); |
3319 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain | |
3320 | if (track->GetNumberOfClusters()<6 && (track->GetChi2MIP(0)+track->GetNUsed()>minchi2)){ | |
628e7bb0 | 3321 | delete array->RemoveAt(index[i]); |
3322 | continue; | |
3323 | } | |
e43c066c | 3324 | } |
b9671574 | 3325 | Bool_t shortbest = !track->GetConstrain() && track->GetNumberOfClusters()<6; |
3326 | if ((track->GetChi2MIP(0)+track->GetNUsed()<minchi2 && track->GetNumberOfClusters()>=minn) ||shortbest){ | |
628e7bb0 | 3327 | if (!shortbest) accepted++; |
e43c066c | 3328 | // |
3329 | newarray->AddLast(array->RemoveAt(index[i])); | |
a5d0fae6 | 3330 | for (Int_t j=0;j<6;j++){ |
3331 | if (nz[j]==0){ | |
3332 | erry[j] = track->GetSigmaY(j); erry[j+6] = track->GetSigmaY(j+6); | |
3333 | errz[j] = track->GetSigmaZ(j); errz[j] = track->GetSigmaZ(j+6); | |
3334 | ny[j] = track->GetNy(j); | |
3335 | nz[j] = track->GetNz(j); | |
e43c066c | 3336 | } |
3337 | } | |
3338 | } | |
3339 | else{ | |
3340 | delete array->RemoveAt(index[i]); | |
3341 | } | |
3342 | } | |
3343 | array->Delete(); | |
3344 | delete fTrackHypothesys.RemoveAt(esdindex); | |
3345 | fTrackHypothesys.AddAt(newarray,esdindex); | |
3346 | } | |
3347 | else{ | |
3348 | array->Delete(); | |
3349 | delete fTrackHypothesys.RemoveAt(esdindex); | |
3350 | } | |
3351 | } | |
3352 | delete [] chi2; | |
3353 | delete [] index; | |
3354 | } | |
44347160 | 3355 | //------------------------------------------------------------------------ |
15dd636f | 3356 | AliITStrackMI * AliITStrackerMI::GetBestHypothesys(Int_t esdindex, AliITStrackMI * original, Int_t checkmax) |
e43c066c | 3357 | { |
3358 | //------------------------------------------------------------- | |
3359 | // try to find best hypothesy | |
3360 | // currently - minimal chi2 of track+backpropagated track+matching to the tpc track | |
3361 | //------------------------------------------------------------- | |
3362 | if (fTrackHypothesys.GetEntriesFast()<=esdindex) return 0; | |
3363 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex); | |
3364 | if (!array) return 0; | |
3365 | Int_t entries = array->GetEntriesFast(); | |
3366 | if (!entries) return 0; | |
3367 | Float_t minchi2 = 100000; | |
15dd636f | 3368 | AliITStrackMI * besttrack=0; |
e43c066c | 3369 | // |
15dd636f | 3370 | AliITStrackMI * backtrack = new AliITStrackMI(*original); |
3371 | AliITStrackMI * forwardtrack = new AliITStrackMI(*original); | |
afd25725 | 3372 | Double_t xyzVtx[]={GetX(),GetY(),GetZ()}; |
3373 | Double_t ersVtx[]={GetSigmaX()/3.,GetSigmaY()/3.,GetSigmaZ()/3.}; | |
e43c066c | 3374 | // |
3375 | for (Int_t i=0;i<entries;i++){ | |
15dd636f | 3376 | AliITStrackMI * track = (AliITStrackMI*)array->At(i); |
e43c066c | 3377 | if (!track) continue; |
628e7bb0 | 3378 | Float_t sigmarfi,sigmaz; |
3379 | GetDCASigma(track,sigmarfi,sigmaz); | |
b9671574 | 3380 | track->SetDnorm(0,sigmarfi); |
3381 | track->SetDnorm(1,sigmaz); | |
628e7bb0 | 3382 | // |
b9671574 | 3383 | track->SetChi2MIP(1,1000000); |
3384 | track->SetChi2MIP(2,1000000); | |
3385 | track->SetChi2MIP(3,1000000); | |
e43c066c | 3386 | // |
3387 | // backtrack | |
15dd636f | 3388 | backtrack = new(backtrack) AliITStrackMI(*track); |
afd25725 | 3389 | if (track->GetConstrain()) { |
e50912db | 3390 | if (!CorrectForPipeMaterial(backtrack,"inward")) continue; |
afd25725 | 3391 | if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue; |
6c94f330 | 3392 | backtrack->ResetCovariance(10.); |
628e7bb0 | 3393 | }else{ |
6c94f330 | 3394 | backtrack->ResetCovariance(10.); |
628e7bb0 | 3395 | } |
e43c066c | 3396 | backtrack->ResetClusters(); |
628e7bb0 | 3397 | |
e43c066c | 3398 | Double_t x = original->GetX(); |
3399 | if (!RefitAt(x,backtrack,track)) continue; | |
628e7bb0 | 3400 | // |
b9671574 | 3401 | track->SetChi2MIP(1,NormalizedChi2(backtrack,0)); |
e43c066c | 3402 | //for (Int_t i=2;i<6;i++){track->fDy[i]+=backtrack->fDy[i]; track->fDz[i]+=backtrack->fDz[i];} |
44347160 | 3403 | if (track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)*6.) continue; |
b9671574 | 3404 | track->SetChi22(GetMatchingChi2(backtrack,original)); |
e43c066c | 3405 | |
b9671574 | 3406 | if ((track->GetConstrain()) && track->GetChi22()>90.) continue; |
3407 | if ((!track->GetConstrain()) && track->GetChi22()>30.) continue; | |
3408 | if ( track->GetChi22()/track->GetNumberOfClusters()>11.) continue; | |
e43c066c | 3409 | |
3410 | ||
44347160 | 3411 | if (!(track->GetConstrain())&&track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)) continue; |
e43c066c | 3412 | // |
3413 | //forward track - without constraint | |
15dd636f | 3414 | forwardtrack = new(forwardtrack) AliITStrackMI(*original); |
e43c066c | 3415 | forwardtrack->ResetClusters(); |
3416 | x = track->GetX(); | |
628e7bb0 | 3417 | RefitAt(x,forwardtrack,track); |
b9671574 | 3418 | track->SetChi2MIP(2,NormalizedChi2(forwardtrack,0)); |
44347160 | 3419 | if (track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)*6.0) continue; |
3420 | if (!(track->GetConstrain())&&track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)) continue; | |
e43c066c | 3421 | |
791f9a2a | 3422 | //track->fD[0] = forwardtrack->GetD(GetX(),GetY()); |
3423 | //track->fD[1] = forwardtrack->GetZat(GetX())-GetZ(); | |
b9671574 | 3424 | forwardtrack->GetDZ(GetX(),GetY(),GetZ(),track->GetDP()); //I.B. |
3425 | forwardtrack->SetD(0,track->GetD(0)); | |
3426 | forwardtrack->SetD(1,track->GetD(1)); | |
e43c066c | 3427 | { |
3428 | Int_t list[6]; | |
00a7cc50 | 3429 | AliITSRecPoint* clist[6]; |
b9671574 | 3430 | track->SetChi2MIP(4,GetNumberOfSharedClusters(track,esdindex,list,clist)); |
3431 | if ( (!track->GetConstrain()) && track->GetChi2MIP(4)>1.0) continue; | |
e43c066c | 3432 | } |
3433 | ||
b9671574 | 3434 | track->SetChi2MIP(3,GetInterpolatedChi2(forwardtrack,backtrack)); |
44347160 | 3435 | if ( (track->GetChi2MIP(3)>6.*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) continue; |
3436 | if ( (!track->GetConstrain()) && (track->GetChi2MIP(3)>2*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) { | |
b9671574 | 3437 | track->SetChi2MIP(3,1000); |
e43c066c | 3438 | continue; |
3439 | } | |
b9671574 | 3440 | Double_t chi2 = track->GetChi2MIP(0)+track->GetNUsed(); |
e43c066c | 3441 | // |
3442 | for (Int_t ichi=0;ichi<5;ichi++){ | |
b9671574 | 3443 | forwardtrack->SetChi2MIP(ichi, track->GetChi2MIP(ichi)); |
e43c066c | 3444 | } |
3445 | if (chi2 < minchi2){ | |
15dd636f | 3446 | //besttrack = new AliITStrackMI(*forwardtrack); |
99c2ee26 | 3447 | besttrack = track; |
e43c066c | 3448 | besttrack->SetLabel(track->GetLabel()); |
b9671574 | 3449 | besttrack->SetFakeRatio(track->GetFakeRatio()); |
e43c066c | 3450 | minchi2 = chi2; |
791f9a2a | 3451 | //original->fD[0] = forwardtrack->GetD(GetX(),GetY()); |
3452 | //original->fD[1] = forwardtrack->GetZat(GetX())-GetZ(); | |
b9671574 | 3453 | forwardtrack->GetDZ(GetX(),GetY(),GetZ(),original->GetDP()); //I.B. |
e43c066c | 3454 | } |
3455 | } | |
3456 | delete backtrack; | |
3457 | delete forwardtrack; | |
3458 | Int_t accepted=0; | |
3459 | for (Int_t i=0;i<entries;i++){ | |
fddf8459 | 3460 | AliITStrackMI * track = (AliITStrackMI*)array->At(i); |
3461 | ||
e43c066c | 3462 | if (!track) continue; |
628e7bb0 | 3463 | |
44347160 | 3464 | if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. || |
e43c066c | 3465 | (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)|| |
b9671574 | 3466 | track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.){ |
3467 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain | |
628e7bb0 | 3468 | delete array->RemoveAt(i); |
3469 | continue; | |
3470 | } | |
e43c066c | 3471 | } |
3472 | else{ | |
3473 | accepted++; | |
3474 | } | |
3475 | } | |
3476 | // | |
3477 | array->Compress(); | |
3478 | SortTrackHypothesys(esdindex,checkmax,1); | |
fddf8459 | 3479 | |
e43c066c | 3480 | array = (TObjArray*) fTrackHypothesys.At(esdindex); |
afdf9b9c | 3481 | if (!array) return 0; // PH What can be the reason? Check SortTrackHypothesys |
15dd636f | 3482 | besttrack = (AliITStrackMI*)array->At(0); |
e43c066c | 3483 | if (!besttrack) return 0; |
b9671574 | 3484 | besttrack->SetChi2MIP(8,0); |
e43c066c | 3485 | fBestTrackIndex[esdindex]=0; |
3486 | entries = array->GetEntriesFast(); | |
15dd636f | 3487 | AliITStrackMI *longtrack =0; |
e43c066c | 3488 | minchi2 =1000; |
b9671574 | 3489 | Float_t minn=besttrack->GetNumberOfClusters()+besttrack->GetNDeadZone(); |
6518a6c5 | 3490 | for (Int_t itrack=entries-1;itrack>0;itrack--) { |
15dd636f | 3491 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); |
b9671574 | 3492 | if (!track->GetConstrain()) continue; |
3493 | if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue; | |
3494 | if (track->GetChi2MIP(0)-besttrack->GetChi2MIP(0)>0.0) continue; | |
3495 | if (track->GetChi2MIP(0)>4.) continue; | |
3496 | minn = track->GetNumberOfClusters()+track->GetNDeadZone(); | |
e43c066c | 3497 | longtrack =track; |
3498 | } | |
3499 | //if (longtrack) besttrack=longtrack; | |
3500 | ||
3501 | Int_t list[6]; | |
00a7cc50 | 3502 | AliITSRecPoint * clist[6]; |
e43c066c | 3503 | Float_t shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist); |
44347160 | 3504 | if (besttrack->GetConstrain()&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&besttrack->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) |
3505 | &&besttrack->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&besttrack->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
e43c066c | 3506 | RegisterClusterTracks(besttrack,esdindex); |
3507 | } | |
3508 | // | |
3509 | // | |
3510 | if (shared>0.0){ | |
3511 | Int_t nshared; | |
3512 | Int_t overlist[6]; | |
3513 | Int_t sharedtrack = GetOverlapTrack(besttrack, esdindex, nshared, list, overlist); | |
3514 | if (sharedtrack>=0){ | |
3515 | // | |
3516 | besttrack = GetBest2Tracks(esdindex,sharedtrack,10,5.5); | |
3517 | if (besttrack){ | |
3518 | shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist); | |
3519 | } | |
3520 | else return 0; | |
3521 | } | |
3522 | } | |
3523 | ||
3524 | if (shared>2.5) return 0; | |
3525 | if (shared>1.0) return besttrack; | |
3526 | // | |
628e7bb0 | 3527 | // Don't sign clusters if not gold track |
3528 | // | |
3529 | if (!besttrack->IsGoldPrimary()) return besttrack; | |
b9671574 | 3530 | if (besttrack->GetESDtrack()->GetKinkIndex(0)!=0) return besttrack; //track belong to kink |
628e7bb0 | 3531 | // |
e43c066c | 3532 | if (fConstraint[fPass]){ |
3533 | // | |
3534 | // sign clusters | |
3535 | // | |
3536 | Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex); | |
3537 | for (Int_t i=0;i<6;i++){ | |
b9671574 | 3538 | Int_t index = besttrack->GetClIndex(i); |
9fd412a8 | 3539 | if (index<0) continue; |
e43c066c | 3540 | Int_t ilayer = (index & 0xf0000000) >> 28; |
b9671574 | 3541 | if (besttrack->GetSigmaY(ilayer)<0.00000000001) continue; |
00a7cc50 | 3542 | AliITSRecPoint *c = (AliITSRecPoint*)GetCluster(index); |
e43c066c | 3543 | if (!c) continue; |
3544 | if (ilayer>3&&c->GetNy()+c->GetNz()>6) continue; | |
3545 | if ( (c->GetNy()+c->GetNz() )> ny[i]+nz[i]+0.7) continue; //shared track | |
3546 | if ( c->GetNz()> nz[i]+0.7) continue; //shared track | |
572f41f9 | 3547 | if ( ilayer>2&& AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(ilayer)) |
3548 | if (besttrack->GetNormQ(ilayer)/besttrack->GetExpQ()>1.5) continue; | |
e43c066c | 3549 | //if ( c->GetNy()> ny[i]+0.7) continue; //shared track |
3550 | ||
3551 | Bool_t cansign = kTRUE; | |
3552 | for (Int_t itrack=0;itrack<entries; itrack++){ | |
15dd636f | 3553 | AliITStrackMI * track = (AliITStrackMI*)array->At(i); |
e43c066c | 3554 | if (!track) continue; |
b9671574 | 3555 | if (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*shared+1.) break; |
9fd412a8 | 3556 | if ( (track->GetClIndex(ilayer)>=0) && (track->GetClIndex(ilayer)!=besttrack->GetClIndex(ilayer))){ |
e43c066c | 3557 | cansign = kFALSE; |
3558 | break; | |
3559 | } | |
3560 | } | |
3561 | if (cansign){ | |
b9671574 | 3562 | if (TMath::Abs(besttrack->GetDy(ilayer)/besttrack->GetSigmaY(ilayer))>3.) continue; |
3563 | if (TMath::Abs(besttrack->GetDz(ilayer)/besttrack->GetSigmaZ(ilayer))>3.) continue; | |
e43c066c | 3564 | if (!c->IsUsed()) c->Use(); |
3565 | } | |
3566 | } | |
3567 | } | |
3568 | return besttrack; | |
3569 | } | |
44347160 | 3570 | //------------------------------------------------------------------------ |
e43c066c | 3571 | void AliITStrackerMI::GetBestHypothesysMIP(TObjArray &itsTracks) |
3572 | { | |
3573 | // | |
3574 | // get "best" hypothesys | |
628e7bb0 | 3575 | // |
e43c066c | 3576 | |
3577 | Int_t nentries = itsTracks.GetEntriesFast(); | |
3578 | for (Int_t i=0;i<nentries;i++){ | |
15dd636f | 3579 | AliITStrackMI* track = (AliITStrackMI*)itsTracks.At(i); |
e43c066c | 3580 | if (!track) continue; |
3581 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(i); | |
3582 | if (!array) continue; | |
3583 | if (array->GetEntriesFast()<=0) continue; | |
3584 | // | |
15dd636f | 3585 | AliITStrackMI* longtrack=0; |
e43c066c | 3586 | Float_t minn=0; |
3587 | Float_t maxchi2=1000; | |
3588 | for (Int_t j=0;j<array->GetEntriesFast();j++){ | |
a5d0fae6 | 3589 | AliITStrackMI* trackHyp = (AliITStrackMI*)array->At(j); |
3590 | if (!trackHyp) continue; | |
3591 | if (trackHyp->GetGoldV0()) { | |
3592 | longtrack = trackHyp; //gold V0 track taken | |
628e7bb0 | 3593 | break; |
3594 | } | |
a5d0fae6 | 3595 | if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()<minn) continue; |
3596 | Float_t chi2 = trackHyp->GetChi2MIP(0); | |
628e7bb0 | 3597 | if (fAfterV0){ |
a5d0fae6 | 3598 | if (!trackHyp->GetGoldV0()&&trackHyp->GetConstrain()==kFALSE) chi2+=5; |
628e7bb0 | 3599 | } |
a5d0fae6 | 3600 | if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = trackHyp->GetChi2MIP(0); |
628e7bb0 | 3601 | // |
3602 | if (chi2 > maxchi2) continue; | |
a5d0fae6 | 3603 | minn= trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone(); |
628e7bb0 | 3604 | maxchi2 = chi2; |
a5d0fae6 | 3605 | longtrack=trackHyp; |
e43c066c | 3606 | } |
628e7bb0 | 3607 | // |
3608 | // | |
3609 | // | |
15dd636f | 3610 | AliITStrackMI * besttrack = (AliITStrackMI*)array->At(0); |
e43c066c | 3611 | if (!longtrack) {longtrack = besttrack;} |
3612 | else besttrack= longtrack; | |
628e7bb0 | 3613 | // |
afd25725 | 3614 | if (besttrack) { |
e43c066c | 3615 | Int_t list[6]; |
00a7cc50 | 3616 | AliITSRecPoint * clist[6]; |
e43c066c | 3617 | Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist); |
3618 | // | |
b9671574 | 3619 | track->SetNUsed(shared); |
3620 | track->SetNSkipped(besttrack->GetNSkipped()); | |
3621 | track->SetChi2MIP(0,besttrack->GetChi2MIP(0)); | |
afd25725 | 3622 | if (shared>0) { |
3623 | if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue; | |
e43c066c | 3624 | Int_t nshared; |
3625 | Int_t overlist[6]; | |
3626 | // | |
3627 | Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist); | |
3628 | //if (sharedtrack==-1) sharedtrack=0; | |
afd25725 | 3629 | if (sharedtrack>=0) { |
e43c066c | 3630 | besttrack = GetBest2Tracks(i,sharedtrack,10,5.5); |
3631 | } | |
3632 | } | |
afd25725 | 3633 | if (besttrack&&fAfterV0) { |
628e7bb0 | 3634 | UpdateESDtrack(besttrack,AliESDtrack::kITSin); |
3635 | } | |
e43c066c | 3636 | if (besttrack&&fConstraint[fPass]) |
3637 | UpdateESDtrack(besttrack,AliESDtrack::kITSin); | |
afd25725 | 3638 | if (besttrack->GetChi2MIP(0)+besttrack->GetNUsed()>1.5 && fConstraint[fPass]) { |
3639 | if ( TMath::Abs(besttrack->GetD(0))>0.1 || | |
3640 | TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE); | |
e43c066c | 3641 | } |
3642 | ||
3643 | } | |
3644 | } | |
3645 | } | |
44347160 | 3646 | //------------------------------------------------------------------------ |
15dd636f | 3647 | void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const { |
e43c066c | 3648 | //-------------------------------------------------------------------- |
3649 | //This function "cooks" a track label. If label<0, this track is fake. | |
3650 | //-------------------------------------------------------------------- | |
3651 | Int_t tpcLabel=-1; | |
3652 | ||
84a21804 | 3653 | if (track->GetESDtrack()) tpcLabel = track->GetESDtrack()->GetTPCLabel(); |
e43c066c | 3654 | |
b9671574 | 3655 | track->SetChi2MIP(9,0); |
e43c066c | 3656 | Int_t nwrong=0; |
3657 | for (Int_t i=0;i<track->GetNumberOfClusters();i++){ | |
3658 | Int_t cindex = track->GetClusterIndex(i); | |
3659 | Int_t l=(cindex & 0xf0000000) >> 28; | |
00a7cc50 | 3660 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex); |
e43c066c | 3661 | Int_t isWrong=1; |
3662 | for (Int_t ind=0;ind<3;ind++){ | |
84a21804 | 3663 | if (cl->GetLabel(ind)==TMath::Abs(tpcLabel)) isWrong=0; |
bf1cd124 | 3664 | //AliDebug(2,Form("icl %d ilab %d lab %d",i,ind,cl->GetLabel(ind))); |
e43c066c | 3665 | } |
b9671574 | 3666 | track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l)); |
e43c066c | 3667 | nwrong+=isWrong; |
3668 | } | |
7d43b4c4 | 3669 | Int_t nclusters = track->GetNumberOfClusters(); |
3670 | if (nclusters > 0) //PH Some tracks don't have any cluster | |
3671 | track->SetFakeRatio(double(nwrong)/double(nclusters)); | |
84a21804 | 3672 | if (tpcLabel>0 && track->GetFakeRatio()>wrong) { |
3673 | track->SetLabel(-tpcLabel); | |
3674 | } else { | |
3675 | track->SetLabel(tpcLabel); | |
e43c066c | 3676 | } |
9be1d1c7 | 3677 | AliDebug(2,Form(" nls %d wrong %d label %d tpcLabel %d\n",nclusters,nwrong,track->GetLabel(),tpcLabel)); |
e43c066c | 3678 | |
3679 | } | |
44347160 | 3680 | //------------------------------------------------------------------------ |
15dd636f | 3681 | void AliITStrackerMI::CookdEdx(AliITStrackMI* track) |
e43c066c | 3682 | { |
3683 | // | |
b9671574 | 3684 | track->SetChi2MIP(9,0); |
e43c066c | 3685 | for (Int_t i=0;i<track->GetNumberOfClusters();i++){ |
3686 | Int_t cindex = track->GetClusterIndex(i); | |
3687 | Int_t l=(cindex & 0xf0000000) >> 28; | |
00a7cc50 | 3688 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex); |
b9671574 | 3689 | Int_t lab = TMath::Abs(track->GetESDtrack()->GetTPCLabel()); |
e43c066c | 3690 | Int_t isWrong=1; |
3691 | for (Int_t ind=0;ind<3;ind++){ | |
3692 | if (cl->GetLabel(ind)==lab) isWrong=0; | |
3693 | } | |
b9671574 | 3694 | track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l)); |
e43c066c | 3695 | } |
e43c066c | 3696 | Double_t low=0.; |
3697 | Double_t up=0.51; | |
09cf9d66 | 3698 | track->CookdEdx(low,up); |
e43c066c | 3699 | } |
44347160 | 3700 | //------------------------------------------------------------------------ |
e50912db | 3701 | void AliITStrackerMI::MakeCoefficients(Int_t ntracks){ |
e43c066c | 3702 | // |
a70ed6ad | 3703 | // Create some arrays |
e43c066c | 3704 | // |
afd25725 | 3705 | if (fCoefficients) delete []fCoefficients; |
3706 | fCoefficients = new Float_t[ntracks*48]; | |
3707 | for (Int_t i=0;i<ntracks*48;i++) fCoefficients[i]=-1.; | |
e43c066c | 3708 | } |
44347160 | 3709 | //------------------------------------------------------------------------ |
00a7cc50 | 3710 | Double_t AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer) |
e43c066c | 3711 | { |
3712 | // | |
a70ed6ad | 3713 | // Compute predicted chi2 |
e43c066c | 3714 | // |
d9ead1a0 | 3715 | Float_t erry,errz,covyz; |
e43c066c | 3716 | Float_t theta = track->GetTgl(); |
3717 | Float_t phi = track->GetSnp(); | |
60e55aee | 3718 | phi = TMath::Abs(phi)*TMath::Sqrt(1./((1.-phi)*(1.+phi))); |
d9ead1a0 | 3719 | AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz,covyz); |
4187a601 | 3720 | AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX())); |
1c97ce2f | 3721 | // Take into account the mis-alignment (bring track to cluster plane) |
3722 | Double_t xTrOrig=track->GetX(); | |
9be1d1c7 | 3723 | if (!track->Propagate(xTrOrig+cluster->GetX())) return 1000.; |
4187a601 | 3724 | AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX())); |
d9ead1a0 | 3725 | Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz,covyz); |
1c97ce2f | 3726 | // Bring the track back to detector plane in ideal geometry |
3727 | // [mis-alignment will be accounted for in UpdateMI()] | |
9be1d1c7 | 3728 | if (!track->Propagate(xTrOrig)) return 1000.; |
e43c066c | 3729 | Float_t ny,nz; |
e50912db | 3730 | AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz); |
e43c066c | 3731 | Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny; |
3732 | if (delta>1){ | |
3733 | chi2+=0.5*TMath::Min(delta/2,2.); | |
3734 | chi2+=2.*cluster->GetDeltaProbability(); | |
3735 | } | |
3736 | // | |
b9671574 | 3737 | track->SetNy(layer,ny); |
3738 | track->SetNz(layer,nz); | |
3739 | track->SetSigmaY(layer,erry); | |
3740 | track->SetSigmaZ(layer, errz); | |
d9ead1a0 | 3741 | track->SetSigmaYZ(layer,covyz); |
e43c066c | 3742 | //track->fNormQ[layer] = cluster->GetQ()/TMath::Sqrt(1+theta*theta+phi*phi); |
60e55aee | 3743 | track->SetNormQ(layer,cluster->GetQ()/TMath::Sqrt((1.+ track->GetTgl()*track->GetTgl())/((1.-track->GetSnp())*(1.+track->GetSnp())))); |
e43c066c | 3744 | return chi2; |
3745 | ||
3746 | } | |
e50912db | 3747 | //------------------------------------------------------------------------ |
3748 | Int_t AliITStrackerMI::UpdateMI(AliITStrackMI* track, const AliITSRecPoint* cl,Double_t chi2,Int_t index) const | |
e43c066c | 3749 | { |
3750 | // | |
a70ed6ad | 3751 | // Update ITS track |
e43c066c | 3752 | // |
3753 | Int_t layer = (index & 0xf0000000) >> 28; | |
b9671574 | 3754 | track->SetClIndex(layer, index); |
572f41f9 | 3755 | if (layer>1&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(layer)) { |
3756 | if (track->GetNormQ(layer)/track->GetExpQ()<0.5 ) { | |
3757 | chi2+= (0.5-track->GetNormQ(layer)/track->GetExpQ())*10.; | |
3758 | track->SetdEdxMismatch(track->GetdEdxMismatch()+(0.5-track->GetNormQ(layer)/track->GetExpQ())*10.); | |
3759 | } | |
e43c066c | 3760 | } |
a504d56f | 3761 | |
1f3e997f | 3762 | if (cl->GetQ()<=0) return 0; // ingore the "virtual" clusters |
a504d56f | 3763 | |
afd25725 | 3764 | |
1c97ce2f | 3765 | // Take into account the mis-alignment (bring track to cluster plane) |
3766 | Double_t xTrOrig=track->GetX(); | |
4187a601 | 3767 | Float_t clxyz[3]; cl->GetGlobalXYZ(clxyz);Double_t trxyz[3]; track->GetXYZ(trxyz); |
3768 | AliDebug(2,Form("gtr %f %f %f",trxyz[0],trxyz[1],trxyz[2])); | |
3769 | AliDebug(2,Form("gcl %f %f %f",clxyz[0],clxyz[1],clxyz[2])); | |
3770 | AliDebug(2,Form(" xtr %f xcl %f",track->GetX(),cl->GetX())); | |
fddf8459 | 3771 | |
9be1d1c7 | 3772 | if (!track->Propagate(xTrOrig+cl->GetX())) return 0; |
1f3e997f | 3773 | |
150f264c | 3774 | AliCluster c(*cl); |
3775 | c.SetSigmaY2(track->GetSigmaY(layer)*track->GetSigmaY(layer)); | |
3776 | c.SetSigmaZ2(track->GetSigmaZ(layer)*track->GetSigmaZ(layer)); | |
d9ead1a0 | 3777 | c.SetSigmaYZ(track->GetSigmaYZ(layer)); |
150f264c | 3778 | |
1c97ce2f | 3779 | |
3780 | Int_t updated = track->UpdateMI(&c,chi2,index); | |
1c97ce2f | 3781 | // Bring the track back to detector plane in ideal geometry |
9be1d1c7 | 3782 | if (!track->Propagate(xTrOrig)) return 0; |
d9ead1a0 | 3783 | |
4187a601 | 3784 | if(!updated) AliDebug(2,"update failed"); |
1c97ce2f | 3785 | return updated; |
e43c066c | 3786 | } |
150f264c | 3787 | |
44347160 | 3788 | //------------------------------------------------------------------------ |
a70ed6ad | 3789 | void AliITStrackerMI::GetDCASigma(const AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz) |
628e7bb0 | 3790 | { |
3791 | // | |
3792 | //DCA sigmas parameterization | |
3793 | //to be paramterized using external parameters in future | |
3794 | // | |
3795 | // | |
afd25725 | 3796 | sigmarfi = 0.0040+1.4 *TMath::Abs(track->GetC())+332.*track->GetC()*track->GetC(); |
3797 | sigmaz = 0.0110+4.37*TMath::Abs(track->GetC()); | |
628e7bb0 | 3798 | } |
e50912db | 3799 | //------------------------------------------------------------------------ |
a70ed6ad | 3800 | void AliITStrackerMI::SignDeltas(const TObjArray *clusterArray, Float_t vz) |
e43c066c | 3801 | { |
3802 | // | |
a70ed6ad | 3803 | // Clusters from delta electrons? |
e43c066c | 3804 | // |
a70ed6ad | 3805 | Int_t entries = clusterArray->GetEntriesFast(); |
e43c066c | 3806 | if (entries<4) return; |
a70ed6ad | 3807 | AliITSRecPoint* cluster = (AliITSRecPoint*)clusterArray->At(0); |
e43c066c | 3808 | Int_t layer = cluster->GetLayer(); |
3809 | if (layer>1) return; | |
3810 | Int_t index[10000]; | |
3811 | Int_t ncandidates=0; | |
3812 | Float_t r = (layer>0)? 7:4; | |
3813 | // | |
3814 | for (Int_t i=0;i<entries;i++){ | |
a70ed6ad | 3815 | AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(i); |
e43c066c | 3816 | Float_t nz = 1+TMath::Abs((cl0->GetZ()-vz)/r); |
3817 | if (cl0->GetNy()+cl0->GetNz()<=5+2*layer+nz) continue; | |
3818 | index[ncandidates] = i; //candidate to belong to delta electron track | |
3819 | ncandidates++; | |
3820 | if (cl0->GetNy()+cl0->GetNz()>9+2*layer+nz) { | |
3821 | cl0->SetDeltaProbability(1); | |
3822 | } | |
3823 | } | |
3824 | // | |
3825 | // | |
3826 | // | |
3827 | for (Int_t i=0;i<ncandidates;i++){ | |
a70ed6ad | 3828 | AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(index[i]); |
e43c066c | 3829 | if (cl0->GetDeltaProbability()>0.8) continue; |
3830 | // | |
3831 | Int_t ncl = 0; | |
3832 | Float_t y[100],z[100],sumy,sumz,sumy2, sumyz, sumw; | |
3833 | sumy=sumz=sumy2=sumyz=sumw=0.0; | |
3834 | for (Int_t j=0;j<ncandidates;j++){ | |
3835 | if (i==j) continue; | |
a70ed6ad | 3836 | AliITSRecPoint* cl1 = (AliITSRecPoint*)clusterArray->At(index[j]); |
e43c066c | 3837 | // |
3838 | Float_t dz = cl0->GetZ()-cl1->GetZ(); | |
3839 | Float_t dy = cl0->GetY()-cl1->GetY(); | |
3840 | if (TMath::Sqrt(dz*dz+dy*dy)<0.2){ | |
3841 | Float_t weight = cl1->GetNy()+cl1->GetNz()-2; | |
3842 | y[ncl] = cl1->GetY(); | |
3843 | z[ncl] = cl1->GetZ(); | |
3844 | sumy+= y[ncl]*weight; | |
3845 | sumz+= z[ncl]*weight; | |
3846 | sumy2+=y[ncl]*y[ncl]*weight; | |
3847 | sumyz+=y[ncl]*z[ncl]*weight; | |
3848 | sumw+=weight; | |
3849 | ncl++; | |
3850 | } | |
3851 | } | |
3852 | if (ncl<4) continue; | |
3853 | Float_t det = sumw*sumy2 - sumy*sumy; | |
3854 | Float_t delta=1000; | |
3855 | if (TMath::Abs(det)>0.01){ | |
3856 | Float_t z0 = (sumy2*sumz - sumy*sumyz)/det; | |
3857 | Float_t k = (sumyz*sumw - sumy*sumz)/det; | |
3858 | delta = TMath::Abs(cl0->GetZ()-(z0+k*cl0->GetY())); | |
3859 | } | |
3860 | else{ | |
3861 | Float_t z0 = sumyz/sumy; | |
3862 | delta = TMath::Abs(cl0->GetZ()-z0); | |
3863 | } | |
3864 | if ( delta<0.05) { | |
3865 | cl0->SetDeltaProbability(1-20.*delta); | |
3866 | } | |
3867 | } | |
3868 | } | |
44347160 | 3869 | //------------------------------------------------------------------------ |
15dd636f | 3870 | void AliITStrackerMI::UpdateESDtrack(AliITStrackMI* track, ULong_t flags) const |
e43c066c | 3871 | { |
3872 | // | |
a70ed6ad | 3873 | // Update ESD track |
e43c066c | 3874 | // |
3875 | track->UpdateESDtrack(flags); | |
b9671574 | 3876 | AliITStrackMI * oldtrack = (AliITStrackMI*)(track->GetESDtrack()->GetITStrack()); |
99c2ee26 | 3877 | if (oldtrack) delete oldtrack; |
b9671574 | 3878 | track->GetESDtrack()->SetITStrack(new AliITStrackMI(*track)); |
3879 | if (TMath::Abs(track->GetDnorm(1))<0.000000001){ | |
628e7bb0 | 3880 | printf("Problem\n"); |
3881 | } | |
e43c066c | 3882 | } |
44347160 | 3883 | //------------------------------------------------------------------------ |
81e97e0d | 3884 | Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{ |
3885 | // | |
ae00569a | 3886 | // Get nearest upper layer close to the point xr. |
81e97e0d | 3887 | // rough approximation |
3888 | // | |
bf6adc12 | 3889 | const Float_t kRadiuses[6]={4,6.5,15.03,24.,38.5,43.7}; |
81e97e0d | 3890 | Float_t radius = TMath::Sqrt(xr[0]*xr[0]+xr[1]*xr[1]); |
3891 | Int_t res =6; | |
3892 | for (Int_t i=0;i<6;i++){ | |
bf6adc12 | 3893 | if (radius<kRadiuses[i]){ |
81e97e0d | 3894 | res =i; |
3895 | break; | |
3896 | } | |
3897 | } | |
3898 | return res; | |
3899 | } | |
44347160 | 3900 | //------------------------------------------------------------------------ |
e50912db | 3901 | void AliITStrackerMI::BuildMaterialLUT(TString material) { |
3902 | //-------------------------------------------------------------------- | |
3903 | // Fill a look-up table with mean material | |
3904 | //-------------------------------------------------------------------- | |
3905 | ||
3906 | Int_t n=1000; | |
3907 | Double_t mparam[7]; | |
3908 | Double_t point1[3],point2[3]; | |
3909 | Double_t phi,cosphi,sinphi,z; | |
3910 | // 0-5 layers, 6 pipe, 7-8 shields | |
1ec3c859 | 3911 | Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 8.0,25.0}; |
3912 | Double_t rmax[9]={ 5.5, 8.0,17.0,26.0,41.0,47.0, 3.0,10.5,30.0}; | |
e50912db | 3913 | |
3914 | Int_t ifirst=0,ilast=0; | |
3915 | if(material.Contains("Pipe")) { | |
3916 | ifirst=6; ilast=6; | |
3917 | } else if(material.Contains("Shields")) { | |
3918 | ifirst=7; ilast=8; | |
3919 | } else if(material.Contains("Layers")) { | |
3920 | ifirst=0; ilast=5; | |
3921 | } else { | |
3922 | Error("BuildMaterialLUT","Wrong layer name\n"); | |
3923 | } | |
3924 | ||
3925 | for(Int_t imat=ifirst; imat<=ilast; imat++) { | |
3926 | Double_t param[5]={0.,0.,0.,0.,0.}; | |
3927 | for (Int_t i=0; i<n; i++) { | |
3928 | phi = 2.*TMath::Pi()*gRandom->Rndm(); | |
3929 | cosphi = TMath::Cos(phi); sinphi = TMath::Sin(phi); | |
3930 | z = 14.*(-1.+2.*gRandom->Rndm()); // SPD barrel | |
3931 | point1[0] = rmin[imat]*cosphi; | |
3932 | point1[1] = rmin[imat]*sinphi; | |
3933 | point1[2] = z; | |
3934 | point2[0] = rmax[imat]*cosphi; | |
3935 | point2[1] = rmax[imat]*sinphi; | |
3936 | point2[2] = z; | |
3937 | AliTracker::MeanMaterialBudget(point1,point2,mparam); | |
3938 | for(Int_t j=0;j<5;j++) param[j]+=mparam[j]; | |
3939 | } | |
3940 | for(Int_t j=0;j<5;j++) param[j]/=(Float_t)n; | |
3941 | if(imat<=5) { | |
3942 | fxOverX0Layer[imat] = param[1]; | |
3943 | fxTimesRhoLayer[imat] = param[0]*param[4]; | |
3944 | } else if(imat==6) { | |
3945 | fxOverX0Pipe = param[1]; | |
3946 | fxTimesRhoPipe = param[0]*param[4]; | |
3947 | } else if(imat==7) { | |
3948 | fxOverX0Shield[0] = param[1]; | |
3949 | fxTimesRhoShield[0] = param[0]*param[4]; | |
3950 | } else if(imat==8) { | |
3951 | fxOverX0Shield[1] = param[1]; | |
3952 | fxTimesRhoShield[1] = param[0]*param[4]; | |
3953 | } | |
3954 | } | |
3955 | /* | |
3956 | printf("%s\n",material.Data()); | |
3957 | printf("%f %f\n",fxOverX0Pipe,fxTimesRhoPipe); | |
3958 | printf("%f %f\n",fxOverX0Shield[0],fxTimesRhoShield[0]); | |
3959 | printf("%f %f\n",fxOverX0Shield[1],fxTimesRhoShield[1]); | |
3960 | printf("%f %f\n",fxOverX0Layer[0],fxTimesRhoLayer[0]); | |
3961 | printf("%f %f\n",fxOverX0Layer[1],fxTimesRhoLayer[1]); | |
3962 | printf("%f %f\n",fxOverX0Layer[2],fxTimesRhoLayer[2]); | |
3963 | printf("%f %f\n",fxOverX0Layer[3],fxTimesRhoLayer[3]); | |
3964 | printf("%f %f\n",fxOverX0Layer[4],fxTimesRhoLayer[4]); | |
3965 | printf("%f %f\n",fxOverX0Layer[5],fxTimesRhoLayer[5]); | |
3966 | */ | |
3967 | return; | |
3968 | } | |
3969 | //------------------------------------------------------------------------ | |
3970 | Int_t AliITStrackerMI::CorrectForPipeMaterial(AliITStrackMI *t, | |
3971 | TString direction) { | |
3972 | //------------------------------------------------------------------- | |
3973 | // Propagate beyond beam pipe and correct for material | |
3974 | // (material budget in different ways according to fUseTGeo value) | |
7131593b | 3975 | // Add time if going outward (PropagateTo or PropagateToTGeo) |
e50912db | 3976 | //------------------------------------------------------------------- |
3977 | ||
3978 | // Define budget mode: | |
3979 | // 0: material from AliITSRecoParam (hard coded) | |
9be1d1c7 | 3980 | // 1: material from TGeo in one step (on the fly) |
e50912db | 3981 | // 2: material from lut |
9be1d1c7 | 3982 | // 3: material from TGeo in one step (same for all hypotheses) |
e50912db | 3983 | Int_t mode; |
3984 | switch(fUseTGeo) { | |
3985 | case 0: | |
3986 | mode=0; | |
3987 | break; | |
3988 | case 1: | |
3989 | mode=1; | |
3990 | break; | |
3991 | case 2: | |
3992 | mode=2; | |
3993 | break; | |
3994 | case 3: | |
3995 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
3996 | { mode=3; } else { mode=1; } | |
3997 | break; | |
3998 | case 4: | |
3999 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4000 | { mode=3; } else { mode=2; } | |
4001 | break; | |
4002 | default: | |
4003 | mode=0; | |
4004 | break; | |
4005 | } | |
4006 | if(fTrackingPhase.Contains("Default")) mode=0; | |
4007 | ||
4008 | Int_t index=fCurrentEsdTrack; | |
4009 | ||
4010 | Float_t dir = (direction.Contains("inward") ? 1. : -1.); | |
4011 | Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe()); | |
70e83b26 | 4012 | Double_t xToGo; |
4013 | if (!t->GetLocalXat(rToGo,xToGo)) return 0; | |
e50912db | 4014 | |
4015 | Double_t xOverX0,x0,lengthTimesMeanDensity; | |
e50912db | 4016 | |
4017 | switch(mode) { | |
4018 | case 0: | |
4019 | xOverX0 = AliITSRecoParam::GetdPipe(); | |
4020 | x0 = AliITSRecoParam::GetX0Be(); | |
4021 | lengthTimesMeanDensity = xOverX0*x0; | |
9be1d1c7 | 4022 | lengthTimesMeanDensity *= dir; |
7131593b | 4023 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; |
e50912db | 4024 | break; |
4025 | case 1: | |
4026 | if (!t->PropagateToTGeo(xToGo,1)) return 0; | |
e50912db | 4027 | break; |
4028 | case 2: | |
4029 | if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe"); | |
4030 | xOverX0 = fxOverX0Pipe; | |
4031 | lengthTimesMeanDensity = fxTimesRhoPipe; | |
9be1d1c7 | 4032 | lengthTimesMeanDensity *= dir; |
7131593b | 4033 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; |
e50912db | 4034 | break; |
4035 | case 3: | |
4036 | if(!fxOverX0PipeTrks || index<0 || index>=fNtracks) Error("CorrectForPipeMaterial","Incorrect usage of UseTGeo option!\n"); | |
4037 | if(fxOverX0PipeTrks[index]<0) { | |
4038 | if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0; | |
4039 | Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/ | |
60e55aee | 4040 | ((1.-t->GetSnp())*(1.+t->GetSnp()))); |
e50912db | 4041 | fxOverX0PipeTrks[index] = TMath::Abs(xOverX0)/angle; |
4042 | fxTimesRhoPipeTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle; | |
4043 | return 1; | |
4044 | } | |
4045 | xOverX0 = fxOverX0PipeTrks[index]; | |
4046 | lengthTimesMeanDensity = fxTimesRhoPipeTrks[index]; | |
9be1d1c7 | 4047 | lengthTimesMeanDensity *= dir; |
7131593b | 4048 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; |
e50912db | 4049 | break; |
4050 | } | |
4051 | ||
e50912db | 4052 | return 1; |
4053 | } | |
4054 | //------------------------------------------------------------------------ | |
4055 | Int_t AliITStrackerMI::CorrectForShieldMaterial(AliITStrackMI *t, | |
4056 | TString shield, | |
4057 | TString direction) { | |
4058 | //------------------------------------------------------------------- | |
4059 | // Propagate beyond SPD or SDD shield and correct for material | |
4060 | // (material budget in different ways according to fUseTGeo value) | |
7131593b | 4061 | // Add time if going outward (PropagateTo or PropagateToTGeo) |
e50912db | 4062 | //------------------------------------------------------------------- |
4063 | ||
4064 | // Define budget mode: | |
4065 | // 0: material from AliITSRecoParam (hard coded) | |
9be1d1c7 | 4066 | // 1: material from TGeo in steps of X cm (on the fly) |
4067 | // X = AliITSRecoParam::GetStepSizeTGeo() | |
e50912db | 4068 | // 2: material from lut |
9be1d1c7 | 4069 | // 3: material from TGeo in one step (same for all hypotheses) |
e50912db | 4070 | Int_t mode; |
4071 | switch(fUseTGeo) { | |
4072 | case 0: | |
4073 | mode=0; | |
4074 | break; | |
4075 | case 1: | |
4076 | mode=1; | |
4077 | break; | |
4078 | case 2: | |
4079 | mode=2; | |
4080 | break; | |
4081 | case 3: | |
4082 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4083 | { mode=3; } else { mode=1; } | |
4084 | break; | |
4085 | case 4: | |
4086 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4087 | { mode=3; } else { mode=2; } | |
4088 | break; | |
4089 | default: | |
4090 | mode=0; | |
4091 | break; | |
4092 | } | |
4093 | if(fTrackingPhase.Contains("Default")) mode=0; | |
4094 | ||
4095 | Float_t dir = (direction.Contains("inward") ? 1. : -1.); | |
4096 | Double_t rToGo; | |
4097 | Int_t shieldindex=0; | |
4098 | if (shield.Contains("SDD")) { // SDDouter | |
4099 | rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(1) : AliITSRecoParam::GetrOutsideShield(1)); | |
4100 | shieldindex=1; | |
4101 | } else if (shield.Contains("SPD")) { // SPDouter | |
4102 | rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(0) : AliITSRecoParam::GetrOutsideShield(0)); | |
4103 | shieldindex=0; | |
4104 | } else { | |
4105 | Error("CorrectForShieldMaterial"," Wrong shield name\n"); | |
e50912db | 4106 | return 0; |
4107 | } | |
67178f34 | 4108 | |
4109 | // do nothing if we are already beyond the shield | |
4110 | Double_t rTrack = TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY()); | |
4111 | if(dir<0 && rTrack > rToGo) return 1; // going outward | |
4112 | if(dir>0 && rTrack < rToGo) return 1; // going inward | |
4113 | ||
4114 | ||
70e83b26 | 4115 | Double_t xToGo; |
4116 | if (!t->GetLocalXat(rToGo,xToGo)) return 0; | |
e50912db | 4117 | |
4118 | Int_t index=2*fCurrentEsdTrack+shieldindex; | |
4119 | ||
4120 | Double_t xOverX0,x0,lengthTimesMeanDensity; | |
9be1d1c7 | 4121 | Int_t nsteps=1; |
e50912db | 4122 | |
4123 | switch(mode) { | |
4124 | case 0: | |
4125 | xOverX0 = AliITSRecoParam::Getdshield(shieldindex); | |
4126 | x0 = AliITSRecoParam::GetX0shield(shieldindex); | |
4127 | lengthTimesMeanDensity = xOverX0*x0; | |
9be1d1c7 | 4128 | lengthTimesMeanDensity *= dir; |
7131593b | 4129 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; |
e50912db | 4130 | break; |
4131 | case 1: | |
9be1d1c7 | 4132 | nsteps= (Int_t)(TMath::Abs(t->GetX()-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1; |
4133 | if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction | |
e50912db | 4134 | break; |
4135 | case 2: | |
4136 | if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields"); | |
4137 | xOverX0 = fxOverX0Shield[shieldindex]; | |
4138 | lengthTimesMeanDensity = fxTimesRhoShield[shieldindex]; | |
9be1d1c7 | 4139 | lengthTimesMeanDensity *= dir; |
7131593b | 4140 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; |
e50912db | 4141 | break; |
4142 | case 3: | |
4143 | if(!fxOverX0ShieldTrks || index<0 || index>=2*fNtracks) Error("CorrectForShieldMaterial","Incorrect usage of UseTGeo option!\n"); | |
4144 | if(fxOverX0ShieldTrks[index]<0) { | |
4145 | if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0; | |
4146 | Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/ | |
60e55aee | 4147 | ((1.-t->GetSnp())*(1.+t->GetSnp()))); |
e50912db | 4148 | fxOverX0ShieldTrks[index] = TMath::Abs(xOverX0)/angle; |
4149 | fxTimesRhoShieldTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle; | |
4150 | return 1; | |
4151 | } | |
4152 | xOverX0 = fxOverX0ShieldTrks[index]; | |
4153 | lengthTimesMeanDensity = fxTimesRhoShieldTrks[index]; | |
9be1d1c7 | 4154 | lengthTimesMeanDensity *= dir; |
7131593b | 4155 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; |
e50912db | 4156 | break; |
4157 | } | |
4158 | ||
e50912db | 4159 | return 1; |
4160 | } | |
4161 | //------------------------------------------------------------------------ | |
4162 | Int_t AliITStrackerMI::CorrectForLayerMaterial(AliITStrackMI *t, | |
4163 | Int_t layerindex, | |
4164 | Double_t oldGlobXYZ[3], | |
4165 | TString direction) { | |
4166 | //------------------------------------------------------------------- | |
4167 | // Propagate beyond layer and correct for material | |
4168 | // (material budget in different ways according to fUseTGeo value) | |
7131593b | 4169 | // Add time if going outward (PropagateTo or PropagateToTGeo) |
e50912db | 4170 | //------------------------------------------------------------------- |
4171 | ||
4172 | // Define budget mode: | |
4173 | // 0: material from AliITSRecoParam (hard coded) | |
9be1d1c7 | 4174 | // 1: material from TGeo in stepsof X cm (on the fly) |
4175 | // X = AliITSRecoParam::GetStepSizeTGeo() | |
e50912db | 4176 | // 2: material from lut |
9be1d1c7 | 4177 | // 3: material from TGeo in one step (same for all hypotheses) |
e50912db | 4178 | Int_t mode; |
4179 | switch(fUseTGeo) { | |
4180 | case 0: | |
4181 | mode=0; | |
4182 | break; | |
4183 | case 1: | |
4184 | mode=1; | |
4185 | break; | |
4186 | case 2: | |
4187 | mode=2; | |
4188 | break; | |
4189 | case 3: | |
4190 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4191 | { mode=3; } else { mode=1; } | |
4192 | break; | |
4193 | case 4: | |
4194 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4195 | { mode=3; } else { mode=2; } | |
4196 | break; | |
4197 | default: | |
4198 | mode=0; | |
4199 | break; | |
4200 | } | |
4201 | if(fTrackingPhase.Contains("Default")) mode=0; | |
4202 | ||
4203 | Float_t dir = (direction.Contains("inward") ? 1. : -1.); | |
4204 | ||
4205 | Double_t r=fgLayers[layerindex].GetR(); | |
4206 | Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r); | |
4207 | ||
4208 | Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir; | |
70e83b26 | 4209 | Double_t xToGo; |
4210 | if (!t->GetLocalXat(rToGo,xToGo)) return 0; | |
e50912db | 4211 | |
4212 | Int_t index=6*fCurrentEsdTrack+layerindex; | |
4213 | ||
e50912db | 4214 | |
4215 | Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0; | |
9be1d1c7 | 4216 | Int_t nsteps=1; |
7131593b | 4217 | |
4218 | // back before material (no correction) | |
d634c32b | 4219 | Double_t rOld,xOld; |
7131593b | 4220 | rOld=TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]); |
4221 | if (!t->GetLocalXat(rOld,xOld)) return 0; | |
4222 | if (!t->Propagate(xOld)) return 0; | |
e50912db | 4223 | |
4224 | switch(mode) { | |
4225 | case 0: | |
4226 | xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0); | |
4227 | lengthTimesMeanDensity = xOverX0*x0; | |
9be1d1c7 | 4228 | lengthTimesMeanDensity *= dir; |
7131593b | 4229 | // Bring the track beyond the material |
4230 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
e50912db | 4231 | break; |
4232 | case 1: | |
9be1d1c7 | 4233 | nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1; |
7131593b | 4234 | if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction |
e50912db | 4235 | break; |
4236 | case 2: | |
4237 | if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers"); | |
4238 | xOverX0 = fxOverX0Layer[layerindex]; | |
4239 | lengthTimesMeanDensity = fxTimesRhoLayer[layerindex]; | |
9be1d1c7 | 4240 | lengthTimesMeanDensity *= dir; |
7131593b | 4241 | // Bring the track beyond the material |
4242 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
e50912db | 4243 | break; |
4244 | case 3: | |
4245 | if(!fxOverX0LayerTrks || index<0 || index>=6*fNtracks) Error("CorrectForLayerMaterial","Incorrect usage of UseTGeo option!\n"); | |
7131593b | 4246 | if(fxOverX0LayerTrks[index]<0) { |
4247 | nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1; | |
4248 | if (!t->PropagateToTGeo(xToGo,nsteps,xOverX0,lengthTimesMeanDensity)) return 0; | |
e50912db | 4249 | Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/ |
60e55aee | 4250 | ((1.-t->GetSnp())*(1.+t->GetSnp()))); |
7131593b | 4251 | fxOverX0LayerTrks[index] = TMath::Abs(xOverX0)/angle; |
4252 | fxTimesRhoLayerTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle; | |
4253 | return 1; | |
e50912db | 4254 | } |
4255 | xOverX0 = fxOverX0LayerTrks[index]; | |
4256 | lengthTimesMeanDensity = fxTimesRhoLayerTrks[index]; | |
9be1d1c7 | 4257 | lengthTimesMeanDensity *= dir; |
7131593b | 4258 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; |
e50912db | 4259 | break; |
4260 | } | |
4261 | ||
7131593b | 4262 | |
e50912db | 4263 | return 1; |
4264 | } | |
4265 | //------------------------------------------------------------------------ | |
4266 | void AliITStrackerMI::MakeTrksMaterialLUT(Int_t ntracks) { | |
4267 | //----------------------------------------------------------------- | |
4268 | // Initialize LUT for storing material for each prolonged track | |
4269 | //----------------------------------------------------------------- | |
4270 | fxOverX0PipeTrks = new Float_t[ntracks]; | |
4271 | fxTimesRhoPipeTrks = new Float_t[ntracks]; | |
4272 | fxOverX0ShieldTrks = new Float_t[ntracks*2]; | |
4273 | fxTimesRhoShieldTrks = new Float_t[ntracks*2]; | |
4274 | fxOverX0LayerTrks = new Float_t[ntracks*6]; | |
4275 | fxTimesRhoLayerTrks = new Float_t[ntracks*6]; | |
4276 | ||
4277 | for(Int_t i=0; i<ntracks; i++) { | |
4278 | fxOverX0PipeTrks[i] = -1.; | |
4279 | fxTimesRhoPipeTrks[i] = -1.; | |
4280 | } | |
4281 | for(Int_t j=0; j<ntracks*2; j++) { | |
4282 | fxOverX0ShieldTrks[j] = -1.; | |
4283 | fxTimesRhoShieldTrks[j] = -1.; | |
4284 | } | |
4285 | for(Int_t k=0; k<ntracks*6; k++) { | |
4286 | fxOverX0LayerTrks[k] = -1.; | |
4287 | fxTimesRhoLayerTrks[k] = -1.; | |
4288 | } | |
4289 | ||
4290 | fNtracks = ntracks; | |
4291 | ||
4292 | return; | |
4293 | } | |
4294 | //------------------------------------------------------------------------ | |
4295 | void AliITStrackerMI::DeleteTrksMaterialLUT() { | |
4296 | //----------------------------------------------------------------- | |
4297 | // Delete LUT for storing material for each prolonged track | |
4298 | //----------------------------------------------------------------- | |
4299 | if(fxOverX0PipeTrks) { | |
4300 | delete [] fxOverX0PipeTrks; fxOverX0PipeTrks = 0; | |
4301 | } | |
4302 | if(fxOverX0ShieldTrks) { | |
4303 | delete [] fxOverX0ShieldTrks; fxOverX0ShieldTrks = 0; | |
4304 | } | |
4305 | ||
4306 | if(fxOverX0LayerTrks) { | |
4307 | delete [] fxOverX0LayerTrks; fxOverX0LayerTrks = 0; | |
4308 | } | |
4309 | if(fxTimesRhoPipeTrks) { | |
4310 | delete [] fxTimesRhoPipeTrks; fxTimesRhoPipeTrks = 0; | |
4311 | } | |
4312 | if(fxTimesRhoShieldTrks) { | |
4313 | delete [] fxTimesRhoShieldTrks; fxTimesRhoShieldTrks = 0; | |
4314 | } | |
4315 | if(fxTimesRhoLayerTrks) { | |
4316 | delete [] fxTimesRhoLayerTrks; fxTimesRhoLayerTrks = 0; | |
4317 | } | |
4318 | return; | |
4319 | } | |
4320 | //------------------------------------------------------------------------ | |
4fa7f7d1 | 4321 | void AliITStrackerMI::SetForceSkippingOfLayer() { |
4322 | //----------------------------------------------------------------- | |
4323 | // Check if we are forced to skip layers | |
4324 | // either we set to skip them in RecoParam | |
4325 | // or they were off during data-taking | |
4326 | //----------------------------------------------------------------- | |
4327 | ||
4328 | const AliEventInfo *eventInfo = GetEventInfo(); | |
6262dd3d | 4329 | |
4fa7f7d1 | 4330 | for(Int_t l=0; l<AliITSgeomTGeo::kNLayers; l++) { |
4331 | fForceSkippingOfLayer[l] = 0; | |
4332 | // check reco param | |
4333 | if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(l)) fForceSkippingOfLayer[l] = 1; | |
4334 | // check run info | |
4335 | ||
87b4605f | 4336 | if(eventInfo && |
4337 | AliITSReconstructor::GetRecoParam()->GetSkipSubdetsNotInTriggerCluster()) { | |
4fa7f7d1 | 4338 | AliDebug(2,Form("GetEventInfo->GetTriggerCluster: %s",eventInfo->GetTriggerCluster())); |
4339 | if(l==0 || l==1) { | |
4340 | if(!strstr(eventInfo->GetTriggerCluster(),"ITSSPD")) fForceSkippingOfLayer[l] = 1; | |
4341 | } else if(l==2 || l==3) { | |
4342 | if(!strstr(eventInfo->GetTriggerCluster(),"ITSSDD")) fForceSkippingOfLayer[l] = 1; | |
4343 | } else { | |
4344 | if(!strstr(eventInfo->GetTriggerCluster(),"ITSSSD")) fForceSkippingOfLayer[l] = 1; | |
4345 | } | |
4346 | } | |
4347 | } | |
4348 | return; | |
4349 | } | |
4350 | //------------------------------------------------------------------------ | |
a70ed6ad | 4351 | Int_t AliITStrackerMI::CheckSkipLayer(const AliITStrackMI *track, |
6518a6c5 | 4352 | Int_t ilayer,Int_t idet) const { |
2755f080 | 4353 | //----------------------------------------------------------------- |
4354 | // This method is used to decide whether to allow a prolongation | |
4355 | // without clusters, because we want to skip the layer. | |
4356 | // In this case the return value is > 0: | |
4357 | // return 1: the user requested to skip a layer | |
371164ec | 4358 | // return 2: track outside z acceptance |
2755f080 | 4359 | //----------------------------------------------------------------- |
e43c066c | 4360 | |
4fa7f7d1 | 4361 | if (ForceSkippingOfLayer(ilayer)) return 1; |
51ad6848 | 4362 | |
371164ec | 4363 | Int_t innerLayCanSkip=0; // was 2, changed on 05.11.2009 |
4364 | ||
4365 | if (idet<0 && // out in z | |
4366 | ilayer>innerLayCanSkip && | |
4367 | AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance()) { | |
2755f080 | 4368 | // check if track will cross SPD outer layer |
4369 | Double_t phiAtSPD2,zAtSPD2; | |
6518a6c5 | 4370 | if (track->GetPhiZat(fgLayers[1].GetR(),phiAtSPD2,zAtSPD2)) { |
2755f080 | 4371 | if (TMath::Abs(zAtSPD2)<2.*AliITSRecoParam::GetSPDdetzlength()) return 2; |
4372 | } | |
371164ec | 4373 | return 2; // always allow skipping, changed on 05.11.2009 |
2755f080 | 4374 | } |
51ad6848 | 4375 | |
2755f080 | 4376 | return 0; |
4377 | } | |
4378 | //------------------------------------------------------------------------ | |
23197852 | 4379 | Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track, |
ae00569a | 4380 | Int_t ilayer,Int_t idet, |
1c97ce2f | 4381 | Double_t dz,Double_t dy, |
23197852 | 4382 | Bool_t noClusters) const { |
6518a6c5 | 4383 | //----------------------------------------------------------------- |
4384 | // This method is used to decide whether to allow a prolongation | |
ae00569a | 4385 | // without clusters, because there is a dead zone in the road. |
6518a6c5 | 4386 | // In this case the return value is > 0: |
4387 | // return 1: dead zone at z=0,+-7cm in SPD | |
bf1cd124 | 4388 | // This method assumes that fSPDdetzcentre is ordered from -z to +z |
23197852 | 4389 | // return 2: all road is "bad" (dead or noisy) from the OCDB |
f8720bda | 4390 | // return 3: at least a chip is "bad" (dead or noisy) from the OCDB |
4391 | // return 4: at least a single channel is "bad" (dead or noisy) from the OCDB | |
6518a6c5 | 4392 | //----------------------------------------------------------------- |
4393 | ||
4394 | // check dead zones at z=0,+-7cm in the SPD | |
4395 | if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) { | |
4396 | Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4397 | fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4398 | fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()}; | |
4399 | Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4400 | fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4401 | fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()}; | |
4402 | for (Int_t i=0; i<3; i++) | |
4187a601 | 4403 | if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) { |
bf1cd124 | 4404 | AliDebug(2,Form("crack SPD %d track z %f %f %f %f\n",ilayer,track->GetZ(),dz,zmaxdead[i],zmindead[i])); |
4405 | if (GetSPDDeadZoneProbability(track->GetZ(),TMath::Sqrt(track->GetSigmaZ2()))>0.1) return 1; | |
4187a601 | 4406 | } |
6518a6c5 | 4407 | } |
4408 | ||
23197852 | 4409 | // check bad zones from OCDB |
4410 | if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0; | |
ae00569a | 4411 | |
23197852 | 4412 | if (idet<0) return 0; |
ae00569a | 4413 | |
23197852 | 4414 | AliITSdetector &det=fgLayers[ilayer].GetDetector(idet); |
4415 | ||
23197852 | 4416 | Int_t detType=-1; |
4417 | Float_t detSizeFactorX=0.0001,detSizeFactorZ=0.0001; | |
4418 | if (ilayer==0 || ilayer==1) { // ---------- SPD | |
4419 | detType = 0; | |
4420 | } else if (ilayer==2 || ilayer==3) { // ---------- SDD | |
4421 | detType = 1; | |
4422 | detSizeFactorX *= 2.; | |
4423 | } else if (ilayer==4 || ilayer==5) { // ---------- SSD | |
4424 | detType = 2; | |
4425 | } | |
a70ed6ad | 4426 | AliITSsegmentation *segm = (AliITSsegmentation*)fkDetTypeRec->GetSegmentationModel(detType); |
23197852 | 4427 | if (detType==2) segm->SetLayer(ilayer+1); |
4428 | Float_t detSizeX = detSizeFactorX*segm->Dx(); | |
4429 | Float_t detSizeZ = detSizeFactorZ*segm->Dz(); | |
4430 | ||
4431 | // check if the road overlaps with bad chips | |
4432 | Float_t xloc,zloc; | |
4187a601 | 4433 | LocalModuleCoord(ilayer,idet,track,xloc,zloc); |
1c97ce2f | 4434 | Float_t zlocmin = zloc-dz; |
4435 | Float_t zlocmax = zloc+dz; | |
4436 | Float_t xlocmin = xloc-dy; | |
4437 | Float_t xlocmax = xloc+dy; | |
23197852 | 4438 | Int_t chipsInRoad[100]; |
4439 | ||
4187a601 | 4440 | // check if road goes out of detector |
4441 | Bool_t touchNeighbourDet=kFALSE; | |
6262dd3d | 4442 | if (TMath::Abs(xlocmin)>0.5*detSizeX) {xlocmin=-0.4999*detSizeX; touchNeighbourDet=kTRUE;} |
4443 | if (TMath::Abs(xlocmax)>0.5*detSizeX) {xlocmax=+0.4999*detSizeX; touchNeighbourDet=kTRUE;} | |
4444 | if (TMath::Abs(zlocmin)>0.5*detSizeZ) {zlocmin=-0.4999*detSizeZ; touchNeighbourDet=kTRUE;} | |
4445 | if (TMath::Abs(zlocmax)>0.5*detSizeZ) {zlocmax=+0.4999*detSizeZ; touchNeighbourDet=kTRUE;} | |
4187a601 | 4446 | AliDebug(2,Form("layer %d det %d zmim zmax %f %f xmin xmax %f %f %f %f",ilayer,idet,zlocmin,zlocmax,xlocmin,xlocmax,detSizeZ,detSizeX)); |
4447 | ||
4448 | // check if this detector is bad | |
4449 | if (det.IsBad()) { | |
4450 | AliDebug(2,Form("lay %d bad detector %d",ilayer,idet)); | |
4451 | if(!touchNeighbourDet) { | |
4452 | return 2; // all detectors in road are bad | |
4453 | } else { | |
4454 | return 3; // at least one is bad | |
4455 | } | |
4456 | } | |
4457 | ||
23197852 | 4458 | Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax); |
4187a601 | 4459 | AliDebug(2,Form("lay %d nChipsInRoad %d",ilayer,nChipsInRoad)); |
23197852 | 4460 | if (!nChipsInRoad) return 0; |
4461 | ||
4462 | Bool_t anyBad=kFALSE,anyGood=kFALSE; | |
4463 | for (Int_t iCh=0; iCh<nChipsInRoad; iCh++) { | |
4464 | if (chipsInRoad[iCh]<0 || chipsInRoad[iCh]>det.GetNChips()-1) continue; | |
4187a601 | 4465 | AliDebug(2,Form(" chip %d bad %d",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh]))); |
23197852 | 4466 | if (det.IsChipBad(chipsInRoad[iCh])) { |
4467 | anyBad=kTRUE; | |
4468 | } else { | |
4469 | anyGood=kTRUE; | |
4470 | } | |
6518a6c5 | 4471 | } |
4472 | ||
4187a601 | 4473 | if (!anyGood) { |
4474 | if(!touchNeighbourDet) { | |
4475 | AliDebug(2,"all bad in road"); | |
4476 | return 2; // all chips in road are bad | |
4477 | } else { | |
4478 | return 3; // at least a bad chip in road | |
4479 | } | |
4480 | } | |
23197852 | 4481 | |
4187a601 | 4482 | if (anyBad) { |
4483 | AliDebug(2,"at least a bad in road"); | |
4484 | return 3; // at least a bad chip in road | |
4485 | } | |
23197852 | 4486 | |
4487 | ||
4488 | if (!AliITSReconstructor::GetRecoParam()->GetUseSingleBadChannelsFromOCDB() | |
23197852 | 4489 | || !noClusters) return 0; |
4490 | ||
4491 | // There are no clusters in road: check if there is at least | |
6a0fdcbd | 4492 | // a bad SPD pixel or SDD anode or SSD strips on both sides |
23197852 | 4493 | |
4187a601 | 4494 | Int_t idetInITS=idet; |
4495 | for(Int_t l=0;l<ilayer;l++) idetInITS+=AliITSgeomTGeo::GetNLadders(l+1)*AliITSgeomTGeo::GetNDetectors(l+1); | |
23197852 | 4496 | |
4187a601 | 4497 | if (fITSChannelStatus->AnyBadInRoad(idetInITS,zlocmin,zlocmax,xlocmin,xlocmax)) { |
4498 | AliDebug(2,Form("Bad channel in det %d of layer %d\n",idet,ilayer)); | |
f8720bda | 4499 | return 4; |
4187a601 | 4500 | } |
4501 | //if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3; | |
23197852 | 4502 | |
6518a6c5 | 4503 | return 0; |
4504 | } | |
4505 | //------------------------------------------------------------------------ | |
ae00569a | 4506 | Bool_t AliITStrackerMI::LocalModuleCoord(Int_t ilayer,Int_t idet, |
a70ed6ad | 4507 | const AliITStrackMI *track, |
ae00569a | 4508 | Float_t &xloc,Float_t &zloc) const { |
4509 | //----------------------------------------------------------------- | |
4510 | // Gives position of track in local module ref. frame | |
4511 | //----------------------------------------------------------------- | |
4512 | ||
4513 | xloc=0.; | |
4514 | zloc=0.; | |
4515 | ||
371164ec | 4516 | if(idet<0) return kTRUE; // track out of z acceptance of layer |
ae00569a | 4517 | |
4518 | Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6 | |
4519 | ||
4520 | Int_t lad = Int_t(idet/ndet) + 1; | |
4a66240a | 4521 | |
ae00569a | 4522 | Int_t det = idet - (lad-1)*ndet + 1; |
4523 | ||
4524 | Double_t xyzGlob[3],xyzLoc[3]; | |
4525 | ||
1c97ce2f | 4526 | AliITSdetector &detector = fgLayers[ilayer].GetDetector(idet); |
4527 | // take into account the misalignment: xyz at real detector plane | |
d1181f10 | 4528 | if(!track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob)) return kFALSE; |
ae00569a | 4529 | |
d1181f10 | 4530 | if(!AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc)) return kFALSE; |
ae00569a | 4531 | |
4532 | xloc = (Float_t)xyzLoc[0]; | |
4533 | zloc = (Float_t)xyzLoc[2]; | |
4534 | ||
4535 | return kTRUE; | |
4536 | } | |
4537 | //------------------------------------------------------------------------ | |
a70ed6ad | 4538 | Bool_t AliITStrackerMI::IsOKForPlaneEff(const AliITStrackMI* track, const Int_t *clusters, Int_t ilayer) const { |
0e91092f | 4539 | // |
4540 | // Method to be optimized further: | |
4541 | // Aim: decide whether a track can be used for PlaneEff evaluation | |
4542 | // the decision is taken based on the track quality at the layer under study | |
4543 | // no information on the clusters on this layer has to be used | |
4544 | // The criterium is to reject tracks at boundaries between basic block (e.g. SPD chip) | |
4545 | // the cut is done on number of sigmas from the boundaries | |
4546 | // | |
4547 | // Input: Actual track, layer [0,5] under study | |
4548 | // Output: none | |
4549 | // Return: kTRUE if this is a good track | |
7167ae53 | 4550 | // |
4551 | // it will apply a pre-selection to obtain good quality tracks. | |
4552 | // Here also you will have the possibility to put a control on the | |
4553 | // impact point of the track on the basic block, in order to exclude border regions | |
4554 | // this will be done by calling a proper method of the AliITSPlaneEff class. | |
4555 | // | |
4556 | // input: AliITStrackMI* track, ilayer= layer number [0,5] | |
0e91092f | 4557 | // return: Bool_t -> kTRUE if usable track, kFALSE if not usable. |
0ed58a47 | 4558 | // |
4559 | Int_t index[AliITSgeomTGeo::kNLayers]; | |
4560 | Int_t k; | |
4561 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1; | |
4562 | // | |
4563 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) { | |
4564 | index[k]=clusters[k]; | |
4565 | } | |
4566 | ||
0e91092f | 4567 | if(!fPlaneEff) |
a31a139f | 4568 | {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;} |
8a32c4b5 | 4569 | AliITSlayer &layer=fgLayers[ilayer]; |
4570 | Double_t r=layer.GetR(); | |
8a32c4b5 | 4571 | AliITStrackMI tmp(*track); |
4572 | ||
0ed58a47 | 4573 | // require a minimal number of cluster in other layers and eventually clusters in closest layers |
4574 | Int_t ncl=0; | |
4575 | for(Int_t lay=AliITSgeomTGeo::kNLayers-1;lay>ilayer;lay--) { | |
4576 | AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay, | |
4577 | tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ; | |
9fd412a8 | 4578 | if (tmp.GetClIndex(lay)>=0) ncl++; |
0ed58a47 | 4579 | } |
4580 | Bool_t nextout = kFALSE; | |
4581 | if(ilayer==AliITSgeomTGeo::kNLayers-1) nextout=kTRUE; // you are already on the outermost layer | |
9fd412a8 | 4582 | else nextout = ((tmp.GetClIndex(ilayer+1)>=0)? kTRUE : kFALSE ); |
0ed58a47 | 4583 | Bool_t nextin = kFALSE; |
4584 | if(ilayer==0) nextin=kTRUE; // you are already on the innermost layer | |
4585 | else nextin = ((index[ilayer-1]>=0)? kTRUE : kFALSE ); | |
4586 | if(ncl<AliITSgeomTGeo::kNLayers-(ilayer+1)-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersPlaneEff()) | |
4587 | return kFALSE; | |
4588 | if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInOuterLayerPlaneEff() && !nextout) return kFALSE; | |
4589 | if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInInnerLayerPlaneEff() && !nextin) return kFALSE; | |
4590 | if(tmp.Pt() < AliITSReconstructor::GetRecoParam()->GetMinPtPlaneEff()) return kFALSE; | |
4591 | // if(AliITSReconstructor::GetRecoParam()->GetOnlyConstraintPlaneEff() && !tmp.GetConstrain()) return kFALSE; | |
4592 | ||
8a32c4b5 | 4593 | // detector number |
4594 | Double_t phi,z; | |
4595 | if (!tmp.GetPhiZat(r,phi,z)) return kFALSE; | |
4596 | Int_t idet=layer.FindDetectorIndex(phi,z); | |
4597 | if(idet<0) { AliInfo(Form("cannot find detector")); | |
4598 | return kFALSE;} | |
4599 | ||
4600 | // here check if it has good Chi Square. | |
4601 | ||
4602 | //propagate to the intersection with the detector plane | |
4603 | const AliITSdetector &det=layer.GetDetector(idet); | |
4604 | if (!tmp.Propagate(det.GetPhi(),det.GetR())) return kFALSE; | |
4605 | ||
4606 | Float_t locx; // | |
4607 | Float_t locz; // | |
0e91092f | 4608 | if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return kFALSE; |
8a32c4b5 | 4609 | UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz); |
4610 | if(key>fPlaneEff->Nblock()) return kFALSE; | |
4611 | Float_t blockXmn,blockXmx,blockZmn,blockZmx; | |
4612 | if (!fPlaneEff->GetBlockBoundaries(key,blockXmn,blockXmx,blockZmn,blockZmx)) return kFALSE; | |
8a32c4b5 | 4613 | //*************** |
0e91092f | 4614 | // DEFINITION OF SEARCH ROAD FOR accepting a track |
8a32c4b5 | 4615 | // |
4616 | //For the time being they are hard-wired, later on from AliITSRecoParam | |
0e91092f | 4617 | // Double_t nsigx=AliITSRecoParam::GetNSigXFarFromBoundary(); |
4618 | // Double_t nsigz=AliITSRecoParam::GetNSigZFarFromBoundary(); | |
4619 | Double_t nsigz=4; | |
4620 | Double_t nsigx=4; | |
4621 | Double_t dx=nsigx*TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system | |
4622 | Double_t dz=nsigz*TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is | |
4623 | // done for RecPoints | |
8a32c4b5 | 4624 | |
1c97ce2f | 4625 | // exclude tracks at boundary between detectors |
0e91092f | 4626 | //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidthPlaneEff(); |
8a32c4b5 | 4627 | Double_t boundaryWidth=0; // for the time being hard-wired, later on from AliITSRecoParam |
a31a139f | 4628 | AliDebug(2,Form("Tracking: track impact x=%f, y=%f, z=%f",tmp.GetX(), tmp.GetY(), tmp.GetZ())); |
0e91092f | 4629 | AliDebug(2,Form("Local: track impact x=%f, z=%f",locx,locz)); |
4630 | AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dx,dz)); | |
8a32c4b5 | 4631 | |
0e91092f | 4632 | if ( (locx-dx < blockXmn+boundaryWidth) || |
4633 | (locx+dx > blockXmx-boundaryWidth) || | |
4634 | (locz-dz < blockZmn+boundaryWidth) || | |
4635 | (locz+dz > blockZmx-boundaryWidth) ) return kFALSE; | |
8a32c4b5 | 4636 | return kTRUE; |
7167ae53 | 4637 | } |
4638 | //------------------------------------------------------------------------ | |
a70ed6ad | 4639 | void AliITStrackerMI::UseTrackForPlaneEff(const AliITStrackMI* track, Int_t ilayer) { |
7167ae53 | 4640 | // |
4641 | // This Method has to be optimized! For the time-being it uses the same criteria | |
4642 | // as those used in the search of extra clusters for overlapping modules. | |
4643 | // | |
4644 | // Method Purpose: estabilish whether a track has produced a recpoint or not | |
4645 | // in the layer under study (For Plane efficiency) | |
4646 | // | |
4647 | // inputs: AliITStrackMI* track (pointer to a usable track) | |
4648 | // outputs: none | |
4649 | // side effects: update (by 1 count) the Plane Efficiency statistics of the basic block | |
4650 | // traversed by this very track. In details: | |
4651 | // - if a cluster can be associated to the track then call | |
4652 | // AliITSPlaneEff::UpDatePlaneEff(key,kTRUE); | |
4653 | // - if not, the AliITSPlaneEff::UpDatePlaneEff(key,kFALSE) is called | |
4654 | // | |
a31a139f | 4655 | if(!fPlaneEff) |
4656 | {AliWarning("UseTrackForPlaneEff: null pointer to AliITSPlaneEff"); return;} | |
7167ae53 | 4657 | AliITSlayer &layer=fgLayers[ilayer]; |
4658 | Double_t r=layer.GetR(); | |
7167ae53 | 4659 | AliITStrackMI tmp(*track); |
4660 | ||
4661 | // detector number | |
4662 | Double_t phi,z; | |
4663 | if (!tmp.GetPhiZat(r,phi,z)) return; | |
4664 | Int_t idet=layer.FindDetectorIndex(phi,z); | |
4665 | ||
8a32c4b5 | 4666 | if(idet<0) { AliInfo(Form("cannot find detector")); |
4667 | return;} | |
7167ae53 | 4668 | |
7167ae53 | 4669 | |
0e91092f | 4670 | //propagate to the intersection with the detector plane |
7167ae53 | 4671 | const AliITSdetector &det=layer.GetDetector(idet); |
4672 | if (!tmp.Propagate(det.GetPhi(),det.GetR())) return; | |
8a32c4b5 | 4673 | |
1c97ce2f | 4674 | |
0e91092f | 4675 | //*************** |
4676 | // DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION | |
4677 | // | |
4678 | Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()* | |
4679 | TMath::Sqrt(tmp.GetSigmaZ2() + | |
4680 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4681 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4682 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer)); | |
4683 | Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()* | |
4684 | TMath::Sqrt(tmp.GetSigmaY2() + | |
4685 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4686 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4687 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer)); | |
4688 | ||
4689 | // road in global (rphi,z) [i.e. in tracking ref. system] | |
4690 | Double_t zmin = tmp.GetZ() - dz; | |
4691 | Double_t zmax = tmp.GetZ() + dz; | |
4692 | Double_t ymin = tmp.GetY() + r*det.GetPhi() - dy; | |
4693 | Double_t ymax = tmp.GetY() + r*det.GetPhi() + dy; | |
4694 | ||
4695 | // select clusters in road | |
7167ae53 | 4696 | layer.SelectClusters(zmin,zmax,ymin,ymax); |
4697 | ||
0e91092f | 4698 | // Define criteria for track-cluster association |
7167ae53 | 4699 | Double_t msz = tmp.GetSigmaZ2() + |
4700 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4701 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4702 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer); | |
4703 | Double_t msy = tmp.GetSigmaY2() + | |
4704 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4705 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4706 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer); | |
8a32c4b5 | 4707 | if (tmp.GetConstrain()) { |
7167ae53 | 4708 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC(); |
4709 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC(); | |
8a32c4b5 | 4710 | } else { |
4711 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC(); | |
4712 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC(); | |
4713 | } | |
7167ae53 | 4714 | msz = 1./msz; // 1/RoadZ^2 |
4715 | msy = 1./msy; // 1/RoadY^2 | |
0e91092f | 4716 | // |
7167ae53 | 4717 | |
4718 | const AliITSRecPoint *cl=0; Int_t clidx=-1, ci=-1; | |
4719 | Int_t idetc=-1; | |
8a32c4b5 | 4720 | Double_t chi2trkcl=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(); |
4721 | //Double_t tolerance=0.2; | |
4722 | /*while ((cl=layer.GetNextCluster(clidx))!=0) { | |
7167ae53 | 4723 | idetc = cl->GetDetectorIndex(); |
4724 | if(idet!=idetc) continue; | |
4725 | //Int_t ilay = cl->GetLayer(); | |
4726 | ||
4727 | if (TMath::Abs(tmp.GetZ() - cl->GetZ()) > tolerance) continue; | |
4728 | if (TMath::Abs(tmp.GetY() - cl->GetY()) > tolerance) continue; | |
4729 | ||
4730 | Double_t chi2=tmp.GetPredictedChi2(cl); | |
8a32c4b5 | 4731 | if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } |
4732 | }*/ | |
4733 | Float_t locx; // | |
4734 | Float_t locz; // | |
0e91092f | 4735 | if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return; |
7167ae53 | 4736 | // |
4737 | AliDebug(2,Form("ilayer= %d, idet=%d, x= %f, z=%f",ilayer,idet,locx,locz)); | |
4738 | UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz); | |
4739 | if(key>fPlaneEff->Nblock()) return; | |
4740 | Bool_t found=kFALSE; | |
8a32c4b5 | 4741 | //if (ci>=0) { |
1cc5cedc | 4742 | Double_t chi2; |
8a32c4b5 | 4743 | while ((cl=layer.GetNextCluster(clidx))!=0) { |
4744 | idetc = cl->GetDetectorIndex(); | |
4745 | if(idet!=idetc) continue; | |
4746 | // here real control to see whether the cluster can be associated to the track. | |
4747 | // cluster not associated to track | |
4748 | if ( (tmp.GetZ()-cl->GetZ())*(tmp.GetZ()-cl->GetZ())*msz + | |
4749 | (tmp.GetY()-cl->GetY())*(tmp.GetY()-cl->GetY())*msy > 1. ) continue; | |
4750 | // calculate track-clusters chi2 | |
1cc5cedc | 4751 | chi2 = GetPredictedChi2MI(&tmp,cl,ilayer); // note that this method change track tmp |
4752 | // in particular, the error associated to the cluster | |
8a32c4b5 | 4753 | //Double_t chi2 = tmp.GetPredictedChi(cl); // this method does not change track tmp |
4754 | // chi2 cut | |
4755 | if (chi2 > AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) continue; | |
7167ae53 | 4756 | found=kTRUE; |
8a32c4b5 | 4757 | if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } // this just to trace which cluster is selected |
7167ae53 | 4758 | // track->SetExtraCluster(ilayer,(ilayer<<28)+ci); |
4759 | // track->SetExtraModule(ilayer,idetExtra); | |
4760 | } | |
4761 | if(!fPlaneEff->UpDatePlaneEff(found,key)) | |
8a32c4b5 | 4762 | AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for key=%d",key)); |
5fbd4fd6 | 4763 | if(fPlaneEff->GetCreateHistos()&& AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) { |
1cc5cedc | 4764 | Float_t tr[4]={99999.,99999.,9999.,9999.}; // initialize to high values |
4765 | Float_t clu[4]={-99999.,-99999.,9999.,9999.}; // (in some cases GetCov fails) | |
4766 | Int_t cltype[2]={-999,-999}; | |
0e91092f | 4767 | |
4768 | tr[0]=locx; | |
4769 | tr[1]=locz; | |
4770 | tr[2]=TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system | |
4771 | tr[3]=TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is | |
4772 | ||
3ebe30ad | 4773 | if (found){ |
4774 | clu[0]=layer.GetCluster(ci)->GetDetLocalX(); | |
4775 | clu[1]=layer.GetCluster(ci)->GetDetLocalZ(); | |
4776 | cltype[0]=layer.GetCluster(ci)->GetNy(); | |
4777 | cltype[1]=layer.GetCluster(ci)->GetNz(); | |
1cc5cedc | 4778 | |
4779 | // Without the following 6 lines you would retrieve the nominal error of a cluster (e.g. for the SPD: | |
4780 | // X->50/sqrt(12)=14 micron Z->450/sqrt(12)= 120 micron) | |
4781 | // Within AliTrackerMI/AliTrackMI the error on the cluster is associated to the AliITStrackMI (fSigmaY,Z) | |
4782 | // It is computed properly by calling the method | |
4783 | // AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer) | |
4784 | // T | |
4785 | //Double_t x=0.5*(tmp.GetX()+layer.GetCluster(ci)->GetX()); // Take into account the mis-alignment | |
4786 | //if (tmp.PropagateTo(x,0.,0.)) { | |
4787 | chi2=GetPredictedChi2MI(&tmp,layer.GetCluster(ci),ilayer); | |
4788 | AliCluster c(*layer.GetCluster(ci)); | |
4789 | c.SetSigmaY2(tmp.GetSigmaY(ilayer)*tmp.GetSigmaY(ilayer)); | |
4790 | c.SetSigmaZ2(tmp.GetSigmaZ(ilayer)*tmp.GetSigmaZ(ilayer)); | |
1cc5cedc | 4791 | //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors |
0e91092f | 4792 | clu[2]=TMath::Sqrt(c.GetSigmaY2()); |
4793 | clu[3]=TMath::Sqrt(c.GetSigmaZ2()); | |
1cc5cedc | 4794 | //} |
3ebe30ad | 4795 | } |
4796 | fPlaneEff->FillHistos(key,found,tr,clu,cltype); | |
5fbd4fd6 | 4797 | } |
7167ae53 | 4798 | return; |
4799 | } | |
bf1cd124 | 4800 |