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1 | /************************************************************************** | |
2 | * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | /* $Id$ */ | |
16 | ||
17 | //------------------------------------------------------------------------- | |
18 | // Implementation of the ITS tracker class | |
19 | // It reads AliITSRecPoint clusters and creates AliITStrackMI tracks | |
20 | // and fills with them the ESD | |
21 | // Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch | |
22 | // Current support and development: | |
23 | // Andrea Dainese, andrea.dainese@lnl.infn.it | |
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 | |
27 | //------------------------------------------------------------------------- | |
28 | ||
29 | #include <TMatrixD.h> | |
30 | #include <TTree.h> | |
31 | #include <TDatabasePDG.h> | |
32 | #include <TString.h> | |
33 | #include <TRandom.h> | |
34 | #include <TTreeStream.h> | |
35 | ||
36 | #include "AliLog.h" | |
37 | #include "AliGeomManager.h" | |
38 | #include "AliITSPlaneEff.h" | |
39 | #include "AliTrackPointArray.h" | |
40 | #include "AliESDEvent.h" | |
41 | #include "AliESDtrack.h" | |
42 | #include "AliV0.h" | |
43 | #include "AliITSChannelStatus.h" | |
44 | #include "AliITSDetTypeRec.h" | |
45 | #include "AliITSRecPoint.h" | |
46 | #include "AliITSRecPointContainer.h" | |
47 | #include "AliITSgeomTGeo.h" | |
48 | #include "AliITSReconstructor.h" | |
49 | #include "AliITSClusterParam.h" | |
50 | #include "AliITSsegmentation.h" | |
51 | #include "AliITSCalibration.h" | |
52 | #include "AliITSPlaneEffSPD.h" | |
53 | #include "AliITSPlaneEffSDD.h" | |
54 | #include "AliITSPlaneEffSSD.h" | |
55 | #include "AliITSV0Finder.h" | |
56 | #include "AliITStrackerMI.h" | |
57 | #include "AliMathBase.h" | |
58 | ||
59 | ClassImp(AliITStrackerMI) | |
60 | ||
61 | AliITStrackerMI::AliITSlayer AliITStrackerMI::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers | |
62 | ||
63 | AliITStrackerMI::AliITStrackerMI():AliTracker(), | |
64 | fI(0), | |
65 | fBestTrack(), | |
66 | fTrackToFollow(), | |
67 | fTrackHypothesys(), | |
68 | fBestHypothesys(), | |
69 | fOriginal(), | |
70 | fCurrentEsdTrack(), | |
71 | fPass(0), | |
72 | fAfterV0(kFALSE), | |
73 | fLastLayerToTrackTo(0), | |
74 | fCoefficients(0), | |
75 | fEsd(0), | |
76 | fTrackingPhase("Default"), | |
77 | fUseTGeo(3), | |
78 | fNtracks(0), | |
79 | fxOverX0Pipe(-1.), | |
80 | fxTimesRhoPipe(-1.), | |
81 | fxOverX0PipeTrks(0), | |
82 | fxTimesRhoPipeTrks(0), | |
83 | fxOverX0ShieldTrks(0), | |
84 | fxTimesRhoShieldTrks(0), | |
85 | fxOverX0LayerTrks(0), | |
86 | fxTimesRhoLayerTrks(0), | |
87 | fDebugStreamer(0), | |
88 | fITSChannelStatus(0), | |
89 | fkDetTypeRec(0), | |
90 | fPlaneEff(0) { | |
91 | //Default constructor | |
92 | Int_t i; | |
93 | for(i=0;i<4;i++) fSPDdetzcentre[i]=0.; | |
94 | for(i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;} | |
95 | for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;} | |
96 | fOriginal.SetOwner(); | |
97 | } | |
98 | //------------------------------------------------------------------------ | |
99 | AliITStrackerMI::AliITStrackerMI(const Char_t *geom) : AliTracker(), | |
100 | fI(AliITSgeomTGeo::GetNLayers()), | |
101 | fBestTrack(), | |
102 | fTrackToFollow(), | |
103 | fTrackHypothesys(), | |
104 | fBestHypothesys(), | |
105 | fOriginal(), | |
106 | fCurrentEsdTrack(), | |
107 | fPass(0), | |
108 | fAfterV0(kFALSE), | |
109 | fLastLayerToTrackTo(AliITSRecoParam::GetLastLayerToTrackTo()), | |
110 | fCoefficients(0), | |
111 | fEsd(0), | |
112 | fTrackingPhase("Default"), | |
113 | fUseTGeo(3), | |
114 | fNtracks(0), | |
115 | fxOverX0Pipe(-1.), | |
116 | fxTimesRhoPipe(-1.), | |
117 | fxOverX0PipeTrks(0), | |
118 | fxTimesRhoPipeTrks(0), | |
119 | fxOverX0ShieldTrks(0), | |
120 | fxTimesRhoShieldTrks(0), | |
121 | fxOverX0LayerTrks(0), | |
122 | fxTimesRhoLayerTrks(0), | |
123 | fDebugStreamer(0), | |
124 | fITSChannelStatus(0), | |
125 | fkDetTypeRec(0), | |
126 | fPlaneEff(0) { | |
127 | //-------------------------------------------------------------------- | |
128 | //This is the AliITStrackerMI constructor | |
129 | //-------------------------------------------------------------------- | |
130 | if (geom) { | |
131 | AliWarning("\"geom\" is actually a dummy argument !"); | |
132 | } | |
133 | ||
134 | fOriginal.SetOwner(); | |
135 | fCoefficients = 0; | |
136 | fAfterV0 = kFALSE; | |
137 | ||
138 | for (Int_t i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) { | |
139 | Int_t nlad=AliITSgeomTGeo::GetNLadders(i); | |
140 | Int_t ndet=AliITSgeomTGeo::GetNDetectors(i); | |
141 | ||
142 | Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z=xyz[2]; | |
143 | AliITSgeomTGeo::GetTranslation(i,1,1,xyz); | |
144 | Double_t poff=TMath::ATan2(y,x); | |
145 | Double_t zoff=z; | |
146 | ||
147 | AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz); | |
148 | Double_t r=TMath::Sqrt(x*x + y*y); | |
149 | ||
150 | AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz); | |
151 | r += TMath::Sqrt(x*x + y*y); | |
152 | AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz); | |
153 | r += TMath::Sqrt(x*x + y*y); | |
154 | AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz); | |
155 | r += TMath::Sqrt(x*x + y*y); | |
156 | r*=0.25; | |
157 | ||
158 | new (fgLayers+i-1) AliITSlayer(r,poff,zoff,nlad,ndet); | |
159 | ||
160 | for (Int_t j=1; j<nlad+1; j++) { | |
161 | for (Int_t k=1; k<ndet+1; k++) { //Fill this layer with detectors | |
162 | TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m); | |
163 | const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k); | |
164 | m.Multiply(tm); | |
165 | Double_t txyz[3]={0.}; | |
166 | xyz[0]=0.;xyz[1]=0.;xyz[2]=0.; | |
167 | m.LocalToMaster(txyz,xyz); | |
168 | r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]); | |
169 | Double_t phi=TMath::ATan2(xyz[1],xyz[0]); | |
170 | ||
171 | if (phi<0) phi+=TMath::TwoPi(); | |
172 | else if (phi>=TMath::TwoPi()) phi-=TMath::TwoPi(); | |
173 | ||
174 | AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1); | |
175 | new(&det) AliITSdetector(r,phi); | |
176 | // compute the real radius (with misalignment) | |
177 | TGeoHMatrix mmisal(*(AliITSgeomTGeo::GetMatrix(i,j,k))); | |
178 | mmisal.Multiply(tm); | |
179 | xyz[0]=0.;xyz[1]=0.;xyz[2]=0.; | |
180 | mmisal.LocalToMaster(txyz,xyz); | |
181 | Double_t rmisal=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]); | |
182 | det.SetRmisal(rmisal); | |
183 | ||
184 | } // end loop on detectors | |
185 | } // end loop on ladders | |
186 | fForceSkippingOfLayer[i] = 0; | |
187 | } // end loop on layers | |
188 | ||
189 | ||
190 | fI=AliITSgeomTGeo::GetNLayers(); | |
191 | ||
192 | fPass=0; | |
193 | fConstraint[0]=1; fConstraint[1]=0; | |
194 | ||
195 | Double_t xyzVtx[]={AliITSReconstructor::GetRecoParam()->GetXVdef(), | |
196 | AliITSReconstructor::GetRecoParam()->GetYVdef(), | |
197 | AliITSReconstructor::GetRecoParam()->GetZVdef()}; | |
198 | Double_t ersVtx[]={AliITSReconstructor::GetRecoParam()->GetSigmaXVdef(), | |
199 | AliITSReconstructor::GetRecoParam()->GetSigmaYVdef(), | |
200 | AliITSReconstructor::GetRecoParam()->GetSigmaZVdef()}; | |
201 | SetVertex(xyzVtx,ersVtx); | |
202 | ||
203 | fLastLayerToTrackTo=AliITSRecoParam::GetLastLayerToTrackTo(); | |
204 | for (Int_t i=0;i<100000;i++){ | |
205 | fBestTrackIndex[i]=0; | |
206 | } | |
207 | ||
208 | // store positions of centre of SPD modules (in z) | |
209 | // The convetion is that fSPDdetzcentre is ordered from -z to +z | |
210 | Double_t tr[3]; | |
211 | if (tr[2]<0) { // old geom (up to v5asymmPPR) | |
212 | AliITSgeomTGeo::GetTranslation(1,1,1,tr); | |
213 | fSPDdetzcentre[0] = tr[2]; | |
214 | AliITSgeomTGeo::GetTranslation(1,1,2,tr); | |
215 | fSPDdetzcentre[1] = tr[2]; | |
216 | AliITSgeomTGeo::GetTranslation(1,1,3,tr); | |
217 | fSPDdetzcentre[2] = tr[2]; | |
218 | AliITSgeomTGeo::GetTranslation(1,1,4,tr); | |
219 | fSPDdetzcentre[3] = tr[2]; | |
220 | } else { // new geom (from v11Hybrid) | |
221 | AliITSgeomTGeo::GetTranslation(1,1,4,tr); | |
222 | fSPDdetzcentre[0] = tr[2]; | |
223 | AliITSgeomTGeo::GetTranslation(1,1,3,tr); | |
224 | fSPDdetzcentre[1] = tr[2]; | |
225 | AliITSgeomTGeo::GetTranslation(1,1,2,tr); | |
226 | fSPDdetzcentre[2] = tr[2]; | |
227 | AliITSgeomTGeo::GetTranslation(1,1,1,tr); | |
228 | fSPDdetzcentre[3] = tr[2]; | |
229 | } | |
230 | ||
231 | fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker(); | |
232 | if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) { | |
233 | AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE"); | |
234 | fUseTGeo = 3; | |
235 | } | |
236 | ||
237 | for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;} | |
238 | for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;} | |
239 | ||
240 | if (AliITSReconstructor::GetRecoParam()->GetESDV0Params()->StreamLevel()>0) | |
241 | fDebugStreamer = new TTreeSRedirector("ITSdebug.root"); | |
242 | ||
243 | // only for plane efficiency evaluation | |
244 | if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() && | |
245 | AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0) { | |
246 | Int_t iplane=AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff(); | |
247 | if(!AliITSReconstructor::GetRecoParam()->GetLayersToSkip(iplane)==1) | |
248 | AliWarning(Form("Evaluation of Plane Eff for layer %d will be attempted without removing it from tracker",iplane)); | |
249 | if (iplane<2) fPlaneEff = new AliITSPlaneEffSPD(); | |
250 | else if (iplane<4) fPlaneEff = new AliITSPlaneEffSDD(); | |
251 | else fPlaneEff = new AliITSPlaneEffSSD(); | |
252 | if(AliITSReconstructor::GetRecoParam()->GetReadPlaneEffFromOCDB()) | |
253 | if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;} | |
254 | if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) fPlaneEff->SetCreateHistos(kTRUE); | |
255 | } | |
256 | } | |
257 | //------------------------------------------------------------------------ | |
258 | AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker), | |
259 | fI(tracker.fI), | |
260 | fBestTrack(tracker.fBestTrack), | |
261 | fTrackToFollow(tracker.fTrackToFollow), | |
262 | fTrackHypothesys(tracker.fTrackHypothesys), | |
263 | fBestHypothesys(tracker.fBestHypothesys), | |
264 | fOriginal(tracker.fOriginal), | |
265 | fCurrentEsdTrack(tracker.fCurrentEsdTrack), | |
266 | fPass(tracker.fPass), | |
267 | fAfterV0(tracker.fAfterV0), | |
268 | fLastLayerToTrackTo(tracker.fLastLayerToTrackTo), | |
269 | fCoefficients(tracker.fCoefficients), | |
270 | fEsd(tracker.fEsd), | |
271 | fTrackingPhase(tracker.fTrackingPhase), | |
272 | fUseTGeo(tracker.fUseTGeo), | |
273 | fNtracks(tracker.fNtracks), | |
274 | fxOverX0Pipe(tracker.fxOverX0Pipe), | |
275 | fxTimesRhoPipe(tracker.fxTimesRhoPipe), | |
276 | fxOverX0PipeTrks(0), | |
277 | fxTimesRhoPipeTrks(0), | |
278 | fxOverX0ShieldTrks(0), | |
279 | fxTimesRhoShieldTrks(0), | |
280 | fxOverX0LayerTrks(0), | |
281 | fxTimesRhoLayerTrks(0), | |
282 | fDebugStreamer(tracker.fDebugStreamer), | |
283 | fITSChannelStatus(tracker.fITSChannelStatus), | |
284 | fkDetTypeRec(tracker.fkDetTypeRec), | |
285 | fPlaneEff(tracker.fPlaneEff) { | |
286 | //Copy constructor | |
287 | fOriginal.SetOwner(); | |
288 | Int_t i; | |
289 | for(i=0;i<4;i++) { | |
290 | fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i]; | |
291 | } | |
292 | for(i=0;i<6;i++) { | |
293 | fxOverX0Layer[i]=tracker.fxOverX0Layer[i]; | |
294 | fxTimesRhoLayer[i]=tracker.fxTimesRhoLayer[i]; | |
295 | } | |
296 | for(i=0;i<2;i++) { | |
297 | fxOverX0Shield[i]=tracker.fxOverX0Shield[i]; | |
298 | fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i]; | |
299 | } | |
300 | } | |
301 | //------------------------------------------------------------------------ | |
302 | AliITStrackerMI & AliITStrackerMI::operator=(const AliITStrackerMI &tracker){ | |
303 | //Assignment operator | |
304 | this->~AliITStrackerMI(); | |
305 | new(this) AliITStrackerMI(tracker); | |
306 | return *this; | |
307 | } | |
308 | //------------------------------------------------------------------------ | |
309 | AliITStrackerMI::~AliITStrackerMI() | |
310 | { | |
311 | // | |
312 | //destructor | |
313 | // | |
314 | if (fCoefficients) delete [] fCoefficients; | |
315 | DeleteTrksMaterialLUT(); | |
316 | if (fDebugStreamer) { | |
317 | //fDebugStreamer->Close(); | |
318 | delete fDebugStreamer; | |
319 | } | |
320 | if(fITSChannelStatus) delete fITSChannelStatus; | |
321 | if(fPlaneEff) delete fPlaneEff; | |
322 | } | |
323 | //------------------------------------------------------------------------ | |
324 | void AliITStrackerMI::ReadBadFromDetTypeRec() { | |
325 | //-------------------------------------------------------------------- | |
326 | //This function read ITS bad detectors, chips, channels from AliITSDetTypeRec | |
327 | //i.e. from OCDB | |
328 | //-------------------------------------------------------------------- | |
329 | ||
330 | if(!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return; | |
331 | ||
332 | Info("ReadBadFromDetTypeRec","Reading info about bad ITS detectors and channels"); | |
333 | ||
334 | if(!fkDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n"); | |
335 | ||
336 | // ITS channels map | |
337 | if(fITSChannelStatus) delete fITSChannelStatus; | |
338 | fITSChannelStatus = new AliITSChannelStatus(fkDetTypeRec); | |
339 | ||
340 | // ITS detectors and chips | |
341 | Int_t i=0,j=0,k=0,ndet=0; | |
342 | for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) { | |
343 | Int_t nBadDetsPerLayer=0; | |
344 | ndet=AliITSgeomTGeo::GetNDetectors(i); | |
345 | for (j=1; j<AliITSgeomTGeo::GetNLadders(i)+1; j++) { | |
346 | for (k=1; k<ndet+1; k++) { | |
347 | AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1); | |
348 | det.ReadBadDetectorAndChips(i-1,(j-1)*ndet + k-1,fkDetTypeRec); | |
349 | if(det.IsBad()) {nBadDetsPerLayer++;} | |
350 | } // end loop on detectors | |
351 | } // end loop on ladders | |
352 | Info("ReadBadFromDetTypeRec",Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i))); | |
353 | } // end loop on layers | |
354 | ||
355 | return; | |
356 | } | |
357 | //------------------------------------------------------------------------ | |
358 | Int_t AliITStrackerMI::LoadClusters(TTree *cTree) { | |
359 | //-------------------------------------------------------------------- | |
360 | //This function loads ITS clusters | |
361 | //-------------------------------------------------------------------- | |
362 | ||
363 | TClonesArray *clusters = NULL; | |
364 | AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance(); | |
365 | clusters=rpcont->FetchClusters(0,cTree); | |
366 | if(!(rpcont->IsSPDActive() || rpcont->IsSDDActive() || rpcont->IsSSDActive())){ | |
367 | AliError("ITS is not in a known running configuration: SPD, SDD and SSD are not active"); | |
368 | return 1; | |
369 | } | |
370 | Int_t i=0,j=0,ndet=0; | |
371 | Int_t detector=0; | |
372 | for (i=0; i<AliITSgeomTGeo::GetNLayers(); i++) { | |
373 | ndet=fgLayers[i].GetNdetectors(); | |
374 | Int_t jmax = j + fgLayers[i].GetNladders()*ndet; | |
375 | for (; j<jmax; j++) { | |
376 | // if (!cTree->GetEvent(j)) continue; | |
377 | clusters = rpcont->UncheckedGetClusters(j); | |
378 | if(!clusters)continue; | |
379 | Int_t ncl=clusters->GetEntriesFast(); | |
380 | SignDeltas(clusters,GetZ()); | |
381 | ||
382 | while (ncl--) { | |
383 | AliITSRecPoint *c=(AliITSRecPoint*)clusters->UncheckedAt(ncl); | |
384 | detector=c->GetDetectorIndex(); | |
385 | ||
386 | if (!c->Misalign()) AliWarning("Can't misalign this cluster !"); | |
387 | ||
388 | Int_t retval = fgLayers[i].InsertCluster(new AliITSRecPoint(*c)); | |
389 | if(retval) { | |
390 | AliWarning(Form("Too many clusters on layer %d!",i)); | |
391 | break; | |
392 | } | |
393 | } | |
394 | ||
395 | // add dead zone "virtual" cluster in SPD, if there is a cluster within | |
396 | // zwindow cm from the dead zone | |
397 | // This method assumes that fSPDdetzcentre is ordered from -z to +z | |
398 | if (i<2 && AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) { | |
399 | for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) { | |
400 | Int_t lab[4] = {0,0,0,detector}; | |
401 | Int_t info[3] = {0,0,i}; | |
402 | Float_t q = 0.; // this identifies virtual clusters | |
403 | Float_t hit[5] = {xdead, | |
404 | 0., | |
405 | AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(), | |
406 | AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(), | |
407 | q}; | |
408 | Bool_t local = kTRUE; | |
409 | Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone(); | |
410 | hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength(); | |
411 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) | |
412 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
413 | hit[1] = fSPDdetzcentre[1]-0.5*AliITSRecoParam::GetSPDdetzlength(); | |
414 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) | |
415 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
416 | hit[1] = fSPDdetzcentre[1]+0.5*AliITSRecoParam::GetSPDdetzlength(); | |
417 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) | |
418 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
419 | hit[1] = fSPDdetzcentre[2]-0.5*AliITSRecoParam::GetSPDdetzlength(); | |
420 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) | |
421 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
422 | hit[1] = fSPDdetzcentre[2]+0.5*AliITSRecoParam::GetSPDdetzlength(); | |
423 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) | |
424 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
425 | hit[1] = fSPDdetzcentre[3]-0.5*AliITSRecoParam::GetSPDdetzlength(); | |
426 | if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow) | |
427 | fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local)); | |
428 | } | |
429 | } // "virtual" clusters in SPD | |
430 | ||
431 | } | |
432 | // | |
433 | fgLayers[i].ResetRoad(); //road defined by the cluster density | |
434 | fgLayers[i].SortClusters(); | |
435 | } | |
436 | ||
437 | // check whether we have to skip some layers | |
438 | SetForceSkippingOfLayer(); | |
439 | ||
440 | return 0; | |
441 | } | |
442 | //------------------------------------------------------------------------ | |
443 | void AliITStrackerMI::UnloadClusters() { | |
444 | //-------------------------------------------------------------------- | |
445 | //This function unloads ITS clusters | |
446 | //-------------------------------------------------------------------- | |
447 | for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters(); | |
448 | } | |
449 | //------------------------------------------------------------------------ | |
450 | void AliITStrackerMI::FillClusterArray(TObjArray* array) const { | |
451 | //-------------------------------------------------------------------- | |
452 | // Publishes all pointers to clusters known to the tracker into the | |
453 | // passed object array. | |
454 | // The ownership is not transfered - the caller is not expected to delete | |
455 | // the clusters. | |
456 | //-------------------------------------------------------------------- | |
457 | ||
458 | for(Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) { | |
459 | for(Int_t icl=0; icl<fgLayers[i].GetNumberOfClusters(); icl++) { | |
460 | AliCluster *cl = (AliCluster*)fgLayers[i].GetCluster(icl); | |
461 | array->AddLast(cl); | |
462 | } | |
463 | } | |
464 | ||
465 | return; | |
466 | } | |
467 | //------------------------------------------------------------------------ | |
468 | Int_t AliITStrackerMI::CorrectForTPCtoITSDeadZoneMaterial(AliITStrackMI *t) { | |
469 | //-------------------------------------------------------------------- | |
470 | // Correction for the material between the TPC and the ITS | |
471 | //-------------------------------------------------------------------- | |
472 | if (t->GetX() > AliITSRecoParam::Getriw()) { // inward direction | |
473 | if (!t->PropagateToTGeo(AliITSRecoParam::Getriw(),1)) return 0;// TPC inner wall | |
474 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum | |
475 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen | |
476 | } else if (t->GetX() < AliITSRecoParam::Getrs()) { // outward direction | |
477 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen | |
478 | if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum | |
479 | if (!t->PropagateToTGeo(AliITSRecoParam::Getriw()+0.001,1)) return 0;// TPC inner wall | |
480 | } else { | |
481 | printf("CorrectForTPCtoITSDeadZoneMaterial: Track is already in the dead zone !\n"); | |
482 | return 0; | |
483 | } | |
484 | ||
485 | return 1; | |
486 | } | |
487 | //------------------------------------------------------------------------ | |
488 | Int_t AliITStrackerMI::Clusters2Tracks(AliESDEvent *event) { | |
489 | //-------------------------------------------------------------------- | |
490 | // This functions reconstructs ITS tracks | |
491 | // The clusters must be already loaded ! | |
492 | //-------------------------------------------------------------------- | |
493 | ||
494 | AliDebug(2,Form("SKIPPING %d %d %d %d %d %d",ForceSkippingOfLayer(0),ForceSkippingOfLayer(1),ForceSkippingOfLayer(2),ForceSkippingOfLayer(3),ForceSkippingOfLayer(4),ForceSkippingOfLayer(5))); | |
495 | ||
496 | fTrackingPhase="Clusters2Tracks"; | |
497 | ||
498 | TObjArray itsTracks(15000); | |
499 | fOriginal.Clear(); | |
500 | fEsd = event; // store pointer to the esd | |
501 | ||
502 | // temporary (for cosmics) | |
503 | if(event->GetVertex()) { | |
504 | TString title = event->GetVertex()->GetTitle(); | |
505 | if(title.Contains("cosmics")) { | |
506 | Double_t xyz[3]={GetX(),GetY(),GetZ()}; | |
507 | Double_t exyz[3]={0.1,0.1,0.1}; | |
508 | SetVertex(xyz,exyz); | |
509 | } | |
510 | } | |
511 | // temporary | |
512 | Int_t noesd = 0; | |
513 | {/* Read ESD tracks */ | |
514 | Double_t pimass = TDatabasePDG::Instance()->GetParticle(211)->Mass(); | |
515 | Int_t nentr=event->GetNumberOfTracks(); | |
516 | noesd=nentr; | |
517 | // Info("Clusters2Tracks", "Number of ESD tracks: %d\n", nentr); | |
518 | while (nentr--) { | |
519 | AliESDtrack *esd=event->GetTrack(nentr); | |
520 | // ---- for debugging: | |
521 | //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); } | |
522 | ||
523 | if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) continue; | |
524 | if (esd->GetStatus()&AliESDtrack::kTPCout) continue; | |
525 | if (esd->GetStatus()&AliESDtrack::kITSin) continue; | |
526 | if (esd->GetKinkIndex(0)>0) continue; //kink daughter | |
527 | AliITStrackMI *t=0; | |
528 | try { | |
529 | t=new AliITStrackMI(*esd); | |
530 | } catch (const Char_t *msg) { | |
531 | //Warning("Clusters2Tracks",msg); | |
532 | delete t; | |
533 | continue; | |
534 | } | |
535 | t->GetDZ(GetX(),GetY(),GetZ(),t->GetDP()); //I.B. | |
536 | Double_t vdist = TMath::Sqrt(t->GetD(0)*t->GetD(0)+t->GetD(1)*t->GetD(1)); | |
537 | ||
538 | ||
539 | // look at the ESD mass hypothesys ! | |
540 | if (t->GetMass()<0.9*pimass) t->SetMass(pimass); | |
541 | // write expected q | |
542 | t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.)); | |
543 | ||
544 | if (esd->GetV0Index(0)>0 && t->GetD(0)<AliITSReconstructor::GetRecoParam()->GetMaxDforV0dghtrForProlongation()){ | |
545 | //track - can be V0 according to TPC | |
546 | } else { | |
547 | if (TMath::Abs(t->GetD(0))>AliITSReconstructor::GetRecoParam()->GetMaxDForProlongation()) { | |
548 | delete t; | |
549 | continue; | |
550 | } | |
551 | if (TMath::Abs(vdist)>AliITSReconstructor::GetRecoParam()->GetMaxDZForProlongation()) { | |
552 | delete t; | |
553 | continue; | |
554 | } | |
555 | if (t->Pt()<AliITSReconstructor::GetRecoParam()->GetMinPtForProlongation()) { | |
556 | delete t; | |
557 | continue; | |
558 | } | |
559 | if (!CorrectForTPCtoITSDeadZoneMaterial(t)) { | |
560 | delete t; | |
561 | continue; | |
562 | } | |
563 | } | |
564 | t->SetReconstructed(kFALSE); | |
565 | itsTracks.AddLast(t); | |
566 | fOriginal.AddLast(t); | |
567 | } | |
568 | } /* End Read ESD tracks */ | |
569 | ||
570 | itsTracks.Sort(); | |
571 | fOriginal.Sort(); | |
572 | Int_t nentr=itsTracks.GetEntriesFast(); | |
573 | fTrackHypothesys.Expand(nentr); | |
574 | fBestHypothesys.Expand(nentr); | |
575 | MakeCoefficients(nentr); | |
576 | if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(event->GetNumberOfTracks()); | |
577 | Int_t ntrk=0; | |
578 | // THE TWO TRACKING PASSES | |
579 | for (fPass=0; fPass<2; fPass++) { | |
580 | Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue; | |
581 | for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) { | |
582 | AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack); | |
583 | if (t==0) continue; //this track has been already tracked | |
584 | //cout<<"========== "<<fPass<<" "<<fCurrentEsdTrack<<" =========\n"; | |
585 | if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed | |
586 | Float_t dz[2]; t->GetDZ(GetX(),GetY(),GetZ(),dz); //I.B. | |
587 | if (fConstraint[fPass]) { | |
588 | if (TMath::Abs(dz[0])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint() || | |
589 | TMath::Abs(dz[1])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint()) continue; | |
590 | } | |
591 | ||
592 | Int_t tpcLabel=t->GetLabel(); //save the TPC track label | |
593 | AliDebug(2,Form("LABEL %d pass %d",tpcLabel,fPass)); | |
594 | fI = 6; | |
595 | ResetTrackToFollow(*t); | |
596 | ResetBestTrack(); | |
597 | ||
598 | FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]); | |
599 | ||
600 | ||
601 | SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change | |
602 | // | |
603 | AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15); | |
604 | if (!besttrack) continue; | |
605 | besttrack->SetLabel(tpcLabel); | |
606 | // besttrack->CookdEdx(); | |
607 | CookdEdx(besttrack); | |
608 | besttrack->SetFakeRatio(1.); | |
609 | CookLabel(besttrack,0.); //For comparison only | |
610 | UpdateESDtrack(besttrack,AliESDtrack::kITSin); | |
611 | ||
612 | if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain | |
613 | ||
614 | t->SetReconstructed(kTRUE); | |
615 | ntrk++; | |
616 | AliDebug(2,Form("TRACK! (label %d) ncls %d",besttrack->GetLabel(),besttrack->GetNumberOfClusters())); | |
617 | } | |
618 | GetBestHypothesysMIP(itsTracks); | |
619 | } // end loop on the two tracking passes | |
620 | ||
621 | if(event->GetNumberOfV0s()>0) AliITSV0Finder::UpdateTPCV0(event,this); | |
622 | if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::FindV02(event,this); | |
623 | fAfterV0 = kTRUE; | |
624 | // | |
625 | itsTracks.Clear(); | |
626 | // | |
627 | Int_t entries = fTrackHypothesys.GetEntriesFast(); | |
628 | for (Int_t ientry=0; ientry<entries; ientry++) { | |
629 | TObjArray * array =(TObjArray*)fTrackHypothesys.UncheckedAt(ientry); | |
630 | if (array) array->Delete(); | |
631 | delete fTrackHypothesys.RemoveAt(ientry); | |
632 | } | |
633 | ||
634 | fTrackHypothesys.Delete(); | |
635 | entries = fBestHypothesys.GetEntriesFast(); | |
636 | for (Int_t ientry=0; ientry<entries; ientry++) { | |
637 | TObjArray * array =(TObjArray*)fBestHypothesys.UncheckedAt(ientry); | |
638 | if (array) array->Delete(); | |
639 | delete fBestHypothesys.RemoveAt(ientry); | |
640 | } | |
641 | fBestHypothesys.Delete(); | |
642 | fOriginal.Clear(); | |
643 | delete [] fCoefficients; | |
644 | fCoefficients=0; | |
645 | DeleteTrksMaterialLUT(); | |
646 | ||
647 | AliInfo(Form("Number of prolonged tracks: %d out of %d ESD tracks",ntrk,noesd)); | |
648 | ||
649 | fTrackingPhase="Default"; | |
650 | ||
651 | return 0; | |
652 | } | |
653 | //------------------------------------------------------------------------ | |
654 | Int_t AliITStrackerMI::PropagateBack(AliESDEvent *event) { | |
655 | //-------------------------------------------------------------------- | |
656 | // This functions propagates reconstructed ITS tracks back | |
657 | // The clusters must be loaded ! | |
658 | //-------------------------------------------------------------------- | |
659 | fTrackingPhase="PropagateBack"; | |
660 | Int_t nentr=event->GetNumberOfTracks(); | |
661 | // Info("PropagateBack", "Number of ESD tracks: %d\n", nentr); | |
662 | ||
663 | Int_t ntrk=0; | |
664 | for (Int_t i=0; i<nentr; i++) { | |
665 | AliESDtrack *esd=event->GetTrack(i); | |
666 | ||
667 | if ((esd->GetStatus()&AliESDtrack::kITSin)==0) continue; | |
668 | if (esd->GetStatus()&AliESDtrack::kITSout) continue; | |
669 | ||
670 | AliITStrackMI *t=0; | |
671 | try { | |
672 | t=new AliITStrackMI(*esd); | |
673 | } catch (const Char_t *msg) { | |
674 | //Warning("PropagateBack",msg); | |
675 | delete t; | |
676 | continue; | |
677 | } | |
678 | t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.)); | |
679 | ||
680 | ResetTrackToFollow(*t); | |
681 | ||
682 | /* | |
683 | // propagate to vertex [SR, GSI 17.02.2003] | |
684 | // Start Time measurement [SR, GSI 17.02.2003], corrected by I.Belikov | |
685 | if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) { | |
686 | if (fTrackToFollow.PropagateToVertex(event->GetVertex())) | |
687 | fTrackToFollow.StartTimeIntegral(); | |
688 | // from vertex to outside pipe | |
689 | CorrectForPipeMaterial(&fTrackToFollow,"outward"); | |
690 | }*/ | |
691 | // Start time integral and add distance from current position to vertex | |
692 | Double_t xyzTrk[3],xyzVtx[3]={GetX(),GetY(),GetZ()}; | |
693 | fTrackToFollow.GetXYZ(xyzTrk); | |
694 | Double_t dst2 = 0.; | |
695 | for (Int_t icoord=0; icoord<3; icoord++) { | |
696 | Double_t di = xyzTrk[icoord] - xyzVtx[icoord]; | |
697 | dst2 += di*di; | |
698 | } | |
699 | fTrackToFollow.StartTimeIntegral(); | |
700 | fTrackToFollow.AddTimeStep(TMath::Sqrt(dst2)); | |
701 | ||
702 | fTrackToFollow.ResetCovariance(10.); fTrackToFollow.ResetClusters(); | |
703 | if (RefitAt(AliITSRecoParam::GetrInsideITSscreen(),&fTrackToFollow,t)) { | |
704 | if (!CorrectForTPCtoITSDeadZoneMaterial(&fTrackToFollow)) { | |
705 | delete t; | |
706 | continue; | |
707 | } | |
708 | fTrackToFollow.SetLabel(t->GetLabel()); | |
709 | //fTrackToFollow.CookdEdx(); | |
710 | CookLabel(&fTrackToFollow,0.); //For comparison only | |
711 | fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSout); | |
712 | //UseClusters(&fTrackToFollow); | |
713 | ntrk++; | |
714 | } | |
715 | delete t; | |
716 | } | |
717 | ||
718 | AliInfo(Form("Number of back propagated ITS tracks: %d out of %d ESD tracks",ntrk,nentr)); | |
719 | ||
720 | fTrackingPhase="Default"; | |
721 | ||
722 | return 0; | |
723 | } | |
724 | //------------------------------------------------------------------------ | |
725 | Int_t AliITStrackerMI::RefitInward(AliESDEvent *event) { | |
726 | //-------------------------------------------------------------------- | |
727 | // This functions refits ITS tracks using the | |
728 | // "inward propagated" TPC tracks | |
729 | // The clusters must be loaded ! | |
730 | //-------------------------------------------------------------------- | |
731 | fTrackingPhase="RefitInward"; | |
732 | ||
733 | if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::RefitV02(event,this); | |
734 | ||
735 | Int_t nentr=event->GetNumberOfTracks(); | |
736 | // Info("RefitInward", "Number of ESD tracks: %d\n", nentr); | |
737 | ||
738 | Int_t ntrk=0; | |
739 | for (Int_t i=0; i<nentr; i++) { | |
740 | AliESDtrack *esd=event->GetTrack(i); | |
741 | ||
742 | if ((esd->GetStatus()&AliESDtrack::kITSout) == 0) continue; | |
743 | if (esd->GetStatus()&AliESDtrack::kITSrefit) continue; | |
744 | if (esd->GetStatus()&AliESDtrack::kTPCout) | |
745 | if ((esd->GetStatus()&AliESDtrack::kTPCrefit)==0) continue; | |
746 | ||
747 | AliITStrackMI *t=0; | |
748 | try { | |
749 | t=new AliITStrackMI(*esd); | |
750 | } catch (const Char_t *msg) { | |
751 | //Warning("RefitInward",msg); | |
752 | delete t; | |
753 | continue; | |
754 | } | |
755 | t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.)); | |
756 | if (!CorrectForTPCtoITSDeadZoneMaterial(t)) { | |
757 | delete t; | |
758 | continue; | |
759 | } | |
760 | ||
761 | ResetTrackToFollow(*t); | |
762 | fTrackToFollow.ResetClusters(); | |
763 | ||
764 | if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) | |
765 | fTrackToFollow.ResetCovariance(10.); | |
766 | ||
767 | //Refitting... | |
768 | Bool_t pe=(AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() && | |
769 | AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0); | |
770 | ||
771 | AliDebug(2,Form("Refit LABEL %d %d",t->GetLabel(),t->GetNumberOfClusters())); | |
772 | if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) { | |
773 | AliDebug(2," refit OK"); | |
774 | fTrackToFollow.SetLabel(t->GetLabel()); | |
775 | // fTrackToFollow.CookdEdx(); | |
776 | CookdEdx(&fTrackToFollow); | |
777 | ||
778 | CookLabel(&fTrackToFollow,0.0); //For comparison only | |
779 | ||
780 | //The beam pipe | |
781 | if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) { | |
782 | fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSrefit); | |
783 | AliESDtrack *esdTrack =fTrackToFollow.GetESDtrack(); | |
784 | //printf(" %d\n",esdTrack->GetITSModuleIndex(0)); | |
785 | //esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit); //original line | |
786 | Double_t r[3]={0.,0.,0.}; | |
787 | Double_t maxD=3.; | |
788 | esdTrack->RelateToVertex(event->GetVertex(),GetBz(r),maxD); | |
789 | ntrk++; | |
790 | } | |
791 | } | |
792 | delete t; | |
793 | } | |
794 | ||
795 | AliInfo(Form("Number of refitted tracks: %d out of %d ESD tracks",ntrk,nentr)); | |
796 | ||
797 | fTrackingPhase="Default"; | |
798 | ||
799 | return 0; | |
800 | } | |
801 | //------------------------------------------------------------------------ | |
802 | AliCluster *AliITStrackerMI::GetCluster(Int_t index) const { | |
803 | //-------------------------------------------------------------------- | |
804 | // Return pointer to a given cluster | |
805 | //-------------------------------------------------------------------- | |
806 | Int_t l=(index & 0xf0000000) >> 28; | |
807 | Int_t c=(index & 0x0fffffff) >> 00; | |
808 | return fgLayers[l].GetCluster(c); | |
809 | } | |
810 | //------------------------------------------------------------------------ | |
811 | Bool_t AliITStrackerMI::GetTrackPoint(Int_t index, AliTrackPoint& p) const { | |
812 | //-------------------------------------------------------------------- | |
813 | // Get track space point with index i | |
814 | //-------------------------------------------------------------------- | |
815 | ||
816 | Int_t l=(index & 0xf0000000) >> 28; | |
817 | Int_t c=(index & 0x0fffffff) >> 00; | |
818 | AliITSRecPoint *cl = fgLayers[l].GetCluster(c); | |
819 | Int_t idet = cl->GetDetectorIndex(); | |
820 | ||
821 | Float_t xyz[3]; | |
822 | Float_t cov[6]; | |
823 | cl->GetGlobalXYZ(xyz); | |
824 | cl->GetGlobalCov(cov); | |
825 | p.SetXYZ(xyz, cov); | |
826 | p.SetCharge(cl->GetQ()); | |
827 | p.SetDriftTime(cl->GetDriftTime()); | |
828 | p.SetChargeRatio(cl->GetChargeRatio()); | |
829 | p.SetClusterType(cl->GetClusterType()); | |
830 | AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer; | |
831 | switch (l) { | |
832 | case 0: | |
833 | iLayer = AliGeomManager::kSPD1; | |
834 | break; | |
835 | case 1: | |
836 | iLayer = AliGeomManager::kSPD2; | |
837 | break; | |
838 | case 2: | |
839 | iLayer = AliGeomManager::kSDD1; | |
840 | break; | |
841 | case 3: | |
842 | iLayer = AliGeomManager::kSDD2; | |
843 | break; | |
844 | case 4: | |
845 | iLayer = AliGeomManager::kSSD1; | |
846 | break; | |
847 | case 5: | |
848 | iLayer = AliGeomManager::kSSD2; | |
849 | break; | |
850 | default: | |
851 | AliWarning(Form("Wrong layer index in ITS (%d) !",l)); | |
852 | break; | |
853 | }; | |
854 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet); | |
855 | p.SetVolumeID((UShort_t)volid); | |
856 | return kTRUE; | |
857 | } | |
858 | //------------------------------------------------------------------------ | |
859 | Bool_t AliITStrackerMI::GetTrackPointTrackingError(Int_t index, | |
860 | AliTrackPoint& p, const AliESDtrack *t) { | |
861 | //-------------------------------------------------------------------- | |
862 | // Get track space point with index i | |
863 | // (assign error estimated during the tracking) | |
864 | //-------------------------------------------------------------------- | |
865 | ||
866 | Int_t l=(index & 0xf0000000) >> 28; | |
867 | Int_t c=(index & 0x0fffffff) >> 00; | |
868 | const AliITSRecPoint *cl = fgLayers[l].GetCluster(c); | |
869 | Int_t idet = cl->GetDetectorIndex(); | |
870 | ||
871 | const AliITSdetector &det=fgLayers[l].GetDetector(idet); | |
872 | ||
873 | // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi | |
874 | Float_t detxy[2]; | |
875 | detxy[0] = det.GetR()*TMath::Cos(det.GetPhi()); | |
876 | detxy[1] = det.GetR()*TMath::Sin(det.GetPhi()); | |
877 | Double_t alpha = t->GetAlpha(); | |
878 | Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha); | |
879 | Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe,GetBz())); | |
880 | phi += alpha-det.GetPhi(); | |
881 | Float_t tgphi = TMath::Tan(phi); | |
882 | ||
883 | Float_t tgl = t->GetTgl(); // tgl about const along track | |
884 | Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.); | |
885 | ||
886 | Float_t errtrky,errtrkz,covyz; | |
887 | Bool_t addMisalErr=kFALSE; | |
888 | AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errtrky,errtrkz,covyz,addMisalErr); | |
889 | ||
890 | Float_t xyz[3]; | |
891 | Float_t cov[6]; | |
892 | cl->GetGlobalXYZ(xyz); | |
893 | // cl->GetGlobalCov(cov); | |
894 | Float_t pos[3] = {0.,0.,0.}; | |
895 | AliCluster tmpcl((UShort_t)cl->GetVolumeId(),pos[0],pos[1],pos[2],errtrky*errtrky,errtrkz*errtrkz,covyz); | |
896 | tmpcl.GetGlobalCov(cov); | |
897 | ||
898 | p.SetXYZ(xyz, cov); | |
899 | p.SetCharge(cl->GetQ()); | |
900 | p.SetDriftTime(cl->GetDriftTime()); | |
901 | p.SetChargeRatio(cl->GetChargeRatio()); | |
902 | p.SetClusterType(cl->GetClusterType()); | |
903 | ||
904 | AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer; | |
905 | switch (l) { | |
906 | case 0: | |
907 | iLayer = AliGeomManager::kSPD1; | |
908 | break; | |
909 | case 1: | |
910 | iLayer = AliGeomManager::kSPD2; | |
911 | break; | |
912 | case 2: | |
913 | iLayer = AliGeomManager::kSDD1; | |
914 | break; | |
915 | case 3: | |
916 | iLayer = AliGeomManager::kSDD2; | |
917 | break; | |
918 | case 4: | |
919 | iLayer = AliGeomManager::kSSD1; | |
920 | break; | |
921 | case 5: | |
922 | iLayer = AliGeomManager::kSSD2; | |
923 | break; | |
924 | default: | |
925 | AliWarning(Form("Wrong layer index in ITS (%d) !",l)); | |
926 | break; | |
927 | }; | |
928 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet); | |
929 | ||
930 | p.SetVolumeID((UShort_t)volid); | |
931 | return kTRUE; | |
932 | } | |
933 | //------------------------------------------------------------------------ | |
934 | void AliITStrackerMI::FollowProlongationTree(AliITStrackMI * otrack, Int_t esdindex, Bool_t constrain) | |
935 | { | |
936 | //-------------------------------------------------------------------- | |
937 | // Follow prolongation tree | |
938 | //-------------------------------------------------------------------- | |
939 | // | |
940 | Double_t xyzVtx[]={GetX(),GetY(),GetZ()}; | |
941 | Double_t ersVtx[]={GetSigmaX(),GetSigmaY(),GetSigmaZ()}; | |
942 | ||
943 | ||
944 | AliESDtrack * esd = otrack->GetESDtrack(); | |
945 | if (esd->GetV0Index(0)>0) { | |
946 | // TEMPORARY SOLLUTION: map V0 indexes to point to proper track | |
947 | // mapping of ESD track is different as ITS track in Containers | |
948 | // Need something more stable | |
949 | // Indexes are set back again to the ESD track indexes in UpdateTPCV0 | |
950 | for (Int_t i=0;i<3;i++){ | |
951 | Int_t index = esd->GetV0Index(i); | |
952 | if (index==0) break; | |
953 | AliESDv0 * vertex = fEsd->GetV0(index); | |
954 | if (vertex->GetStatus()<0) continue; // rejected V0 | |
955 | // | |
956 | if (esd->GetSign()>0) { | |
957 | vertex->SetIndex(0,esdindex); | |
958 | } else { | |
959 | vertex->SetIndex(1,esdindex); | |
960 | } | |
961 | } | |
962 | } | |
963 | TObjArray *bestarray = (TObjArray*)fBestHypothesys.At(esdindex); | |
964 | if (!bestarray){ | |
965 | bestarray = new TObjArray(5); | |
966 | bestarray->SetOwner(); | |
967 | fBestHypothesys.AddAt(bestarray,esdindex); | |
968 | } | |
969 | ||
970 | // | |
971 | //setup tree of the prolongations | |
972 | // | |
973 | static AliITStrackMI tracks[7][100]; | |
974 | AliITStrackMI *currenttrack; | |
975 | static AliITStrackMI currenttrack1; | |
976 | static AliITStrackMI currenttrack2; | |
977 | static AliITStrackMI backuptrack; | |
978 | Int_t ntracks[7]; | |
979 | Int_t nindexes[7][100]; | |
980 | Float_t normalizedchi2[100]; | |
981 | for (Int_t ilayer=0;ilayer<6;ilayer++) ntracks[ilayer]=0; | |
982 | otrack->SetNSkipped(0); | |
983 | new (&(tracks[6][0])) AliITStrackMI(*otrack); | |
984 | ntracks[6]=1; | |
985 | for (Int_t i=0;i<7;i++) nindexes[i][0]=0; | |
986 | Int_t modstatus = 1; // found | |
987 | Float_t xloc,zloc; | |
988 | // | |
989 | // | |
990 | // follow prolongations | |
991 | for (Int_t ilayer=5; ilayer>=0; ilayer--) { | |
992 | AliDebug(2,Form("FollowProlongationTree: layer %d",ilayer)); | |
993 | fI = ilayer; | |
994 | // | |
995 | AliITSlayer &layer=fgLayers[ilayer]; | |
996 | Double_t r = layer.GetR(); | |
997 | ntracks[ilayer]=0; | |
998 | // | |
999 | // | |
1000 | Int_t nskipped=0; | |
1001 | Float_t nused =0; | |
1002 | for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) { | |
1003 | //set current track | |
1004 | if (ntracks[ilayer]>=100) break; | |
1005 | if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0) nskipped++; | |
1006 | if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2.) nused++; | |
1007 | if (ntracks[ilayer]>15+ilayer){ | |
1008 | if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0 && nskipped>4+ilayer) continue; | |
1009 | if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2. && nused>3) continue; | |
1010 | } | |
1011 | ||
1012 | new(¤ttrack1) AliITStrackMI(tracks[ilayer+1][nindexes[ilayer+1][itrack]]); | |
1013 | ||
1014 | // material between SSD and SDD, SDD and SPD | |
1015 | if (ilayer==3) | |
1016 | if(!CorrectForShieldMaterial(¤ttrack1,"SDD","inward")) continue; | |
1017 | if (ilayer==1) | |
1018 | if(!CorrectForShieldMaterial(¤ttrack1,"SPD","inward")) continue; | |
1019 | ||
1020 | // detector number | |
1021 | Double_t phi,z; | |
1022 | if (!currenttrack1.GetPhiZat(r,phi,z)) continue; | |
1023 | Int_t idet=layer.FindDetectorIndex(phi,z); | |
1024 | ||
1025 | Double_t trackGlobXYZ1[3]; | |
1026 | if (!currenttrack1.GetXYZ(trackGlobXYZ1)) continue; | |
1027 | ||
1028 | // Get the budget to the primary vertex for the current track being prolonged | |
1029 | Double_t budgetToPrimVertex = GetEffectiveThickness(); | |
1030 | ||
1031 | // check if we allow a prolongation without point | |
1032 | Int_t skip = CheckSkipLayer(¤ttrack1,ilayer,idet); | |
1033 | if (skip) { | |
1034 | AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1); | |
1035 | // propagate to the layer radius | |
1036 | Double_t xToGo; if (!vtrack->GetLocalXat(r,xToGo)) continue; | |
1037 | if(!vtrack->Propagate(xToGo)) continue; | |
1038 | // apply correction for material of the current layer | |
1039 | CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward"); | |
1040 | vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1); | |
1041 | vtrack->SetDeadZoneProbability(ilayer,1.); // no penalty for missing cluster | |
1042 | vtrack->SetClIndex(ilayer,-1); | |
1043 | modstatus = (skip==1 ? 3 : 4); // skipped : out in z | |
1044 | if(LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc)) { // local module coords | |
1045 | vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
1046 | } | |
1047 | if(constrain) vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); | |
1048 | ntracks[ilayer]++; | |
1049 | continue; | |
1050 | } | |
1051 | ||
1052 | // track outside layer acceptance in z | |
1053 | if (idet<0) continue; | |
1054 | ||
1055 | //propagate to the intersection with the detector plane | |
1056 | const AliITSdetector &det=layer.GetDetector(idet); | |
1057 | new(¤ttrack2) AliITStrackMI(currenttrack1); | |
1058 | if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue; | |
1059 | if (!currenttrack2.Propagate(det.GetPhi(),det.GetR())) continue; | |
1060 | currenttrack1.SetDetectorIndex(idet); | |
1061 | currenttrack2.SetDetectorIndex(idet); | |
1062 | if(!LocalModuleCoord(ilayer,idet,¤ttrack1,xloc,zloc)) continue; // local module coords | |
1063 | ||
1064 | //*************** | |
1065 | // DEFINITION OF SEARCH ROAD AND CLUSTERS SELECTION | |
1066 | // | |
1067 | // road in global (rphi,z) [i.e. in tracking ref. system] | |
1068 | Double_t zmin,zmax,ymin,ymax; | |
1069 | if (!ComputeRoad(¤ttrack1,ilayer,idet,zmin,zmax,ymin,ymax)) continue; | |
1070 | ||
1071 | // select clusters in road | |
1072 | layer.SelectClusters(zmin,zmax,ymin,ymax); | |
1073 | //******************** | |
1074 | ||
1075 | // Define criteria for track-cluster association | |
1076 | Double_t msz = currenttrack1.GetSigmaZ2() + | |
1077 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1078 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1079 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer); | |
1080 | Double_t msy = currenttrack1.GetSigmaY2() + | |
1081 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1082 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1083 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer); | |
1084 | if (constrain) { | |
1085 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC(); | |
1086 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC(); | |
1087 | } else { | |
1088 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC(); | |
1089 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC(); | |
1090 | } | |
1091 | msz = 1./msz; // 1/RoadZ^2 | |
1092 | msy = 1./msy; // 1/RoadY^2 | |
1093 | ||
1094 | // | |
1095 | // | |
1096 | // LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER | |
1097 | // | |
1098 | const AliITSRecPoint *cl=0; | |
1099 | Int_t clidx=-1; | |
1100 | Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value | |
1101 | Bool_t deadzoneSPD=kFALSE; | |
1102 | currenttrack = ¤ttrack1; | |
1103 | ||
1104 | // check if the road contains a dead zone | |
1105 | Bool_t noClusters = kFALSE; | |
1106 | if (!layer.GetNextCluster(clidx,kTRUE)) noClusters=kTRUE; | |
1107 | if (noClusters) AliDebug(2,"no clusters in road"); | |
1108 | Double_t dz=0.5*(zmax-zmin); | |
1109 | Double_t dy=0.5*(ymax-ymin); | |
1110 | Int_t dead = CheckDeadZone(¤ttrack1,ilayer,idet,dz,dy,noClusters); | |
1111 | if(dead) AliDebug(2,Form("DEAD (%d)\n",dead)); | |
1112 | // create a prolongation without clusters (check also if there are no clusters in the road) | |
1113 | if (dead || | |
1114 | (noClusters && | |
1115 | AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) { | |
1116 | AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack); | |
1117 | updatetrack->SetClIndex(ilayer,-1); | |
1118 | if (dead==0) { | |
1119 | modstatus = 5; // no cls in road | |
1120 | } else if (dead==1) { | |
1121 | modstatus = 7; // holes in z in SPD | |
1122 | } else if (dead==2 || dead==3 || dead==4) { | |
1123 | modstatus = 2; // dead from OCDB | |
1124 | } | |
1125 | updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
1126 | // apply correction for material of the current layer | |
1127 | CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward"); | |
1128 | if (constrain) { // apply vertex constrain | |
1129 | updatetrack->SetConstrain(constrain); | |
1130 | Bool_t isPrim = kTRUE; | |
1131 | if (ilayer<4) { // check that it's close to the vertex | |
1132 | updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B. | |
1133 | if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y | |
1134 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() || | |
1135 | TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z | |
1136 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE; | |
1137 | } | |
1138 | if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); | |
1139 | } | |
1140 | updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1); | |
1141 | if (dead) { | |
1142 | if (dead==1) { // dead zone at z=0,+-7cm in SPD | |
1143 | updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2()))); | |
1144 | deadzoneSPD=kTRUE; | |
1145 | } else if (dead==2 || dead==3) { // dead module or chip from OCDB | |
1146 | updatetrack->SetDeadZoneProbability(ilayer,1.); | |
1147 | } else if (dead==4) { // at least a single dead channel from OCDB | |
1148 | updatetrack->SetDeadZoneProbability(ilayer,0.); | |
1149 | } | |
1150 | } | |
1151 | ntracks[ilayer]++; | |
1152 | } | |
1153 | ||
1154 | clidx=-1; | |
1155 | // loop over clusters in the road | |
1156 | while ((cl=layer.GetNextCluster(clidx))!=0) { | |
1157 | if (ntracks[ilayer]>95) break; //space for skipped clusters | |
1158 | Bool_t changedet =kFALSE; | |
1159 | if (TMath::Abs(cl->GetQ())<1.e-13 && deadzoneSPD==kTRUE) continue; | |
1160 | Int_t idetc=cl->GetDetectorIndex(); | |
1161 | ||
1162 | if (currenttrack->GetDetectorIndex()==idetc) { // track already on the cluster's detector | |
1163 | // take into account misalignment (bring track to real detector plane) | |
1164 | Double_t xTrOrig = currenttrack->GetX(); | |
1165 | if (!currenttrack->Propagate(xTrOrig+cl->GetX())) continue; | |
1166 | // a first cut on track-cluster distance | |
1167 | if ( (currenttrack->GetZ()-cl->GetZ())*(currenttrack->GetZ()-cl->GetZ())*msz + | |
1168 | (currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. ) | |
1169 | { // cluster not associated to track | |
1170 | AliDebug(2,"not associated"); | |
1171 | continue; | |
1172 | } | |
1173 | // bring track back to ideal detector plane | |
1174 | if (!currenttrack->Propagate(xTrOrig)) continue; | |
1175 | } else { // have to move track to cluster's detector | |
1176 | const AliITSdetector &detc=layer.GetDetector(idetc); | |
1177 | // a first cut on track-cluster distance | |
1178 | Double_t y; | |
1179 | if (!currenttrack2.GetProlongationFast(detc.GetPhi(),detc.GetR()+cl->GetX(),y,z)) continue; | |
1180 | if ( (z-cl->GetZ())*(z-cl->GetZ())*msz + | |
1181 | (y-cl->GetY())*(y-cl->GetY())*msy > 1. ) | |
1182 | continue; // cluster not associated to track | |
1183 | // | |
1184 | new (&backuptrack) AliITStrackMI(currenttrack2); | |
1185 | changedet = kTRUE; | |
1186 | currenttrack =¤ttrack2; | |
1187 | if (!currenttrack->Propagate(detc.GetPhi(),detc.GetR())) { | |
1188 | new (currenttrack) AliITStrackMI(backuptrack); | |
1189 | changedet = kFALSE; | |
1190 | continue; | |
1191 | } | |
1192 | currenttrack->SetDetectorIndex(idetc); | |
1193 | // Get again the budget to the primary vertex | |
1194 | // for the current track being prolonged, if had to change detector | |
1195 | //budgetToPrimVertex = GetEffectiveThickness();// not needed at the moment because anyway we take a mean material for this correction | |
1196 | } | |
1197 | ||
1198 | // calculate track-clusters chi2 | |
1199 | chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer); | |
1200 | // chi2 cut | |
1201 | AliDebug(2,Form("chi2 %f max %f",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer))); | |
1202 | if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) { | |
1203 | if (TMath::Abs(cl->GetQ())<1.e-13) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster | |
1204 | if (ntracks[ilayer]>=100) continue; | |
1205 | AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack); | |
1206 | updatetrack->SetClIndex(ilayer,-1); | |
1207 | if (changedet) new (¤ttrack2) AliITStrackMI(backuptrack); | |
1208 | ||
1209 | if (TMath::Abs(cl->GetQ())>1.e-13) { // real cluster | |
1210 | if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) { | |
1211 | AliDebug(2,"update failed"); | |
1212 | continue; | |
1213 | } | |
1214 | updatetrack->SetSampledEdx(cl->GetQ(),ilayer-2); | |
1215 | modstatus = 1; // found | |
1216 | } else { // virtual cluster in dead zone | |
1217 | updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1); | |
1218 | updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2()))); | |
1219 | modstatus = 7; // holes in z in SPD | |
1220 | } | |
1221 | ||
1222 | if (changedet) { | |
1223 | Float_t xlocnewdet,zlocnewdet; | |
1224 | if(LocalModuleCoord(ilayer,idet,updatetrack,xlocnewdet,zlocnewdet)) { // local module coords | |
1225 | updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xlocnewdet,zlocnewdet); | |
1226 | } | |
1227 | } else { | |
1228 | updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
1229 | } | |
1230 | if (cl->IsUsed()) updatetrack->IncrementNUsed(); | |
1231 | ||
1232 | // apply correction for material of the current layer | |
1233 | CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward"); | |
1234 | ||
1235 | if (constrain) { // apply vertex constrain | |
1236 | updatetrack->SetConstrain(constrain); | |
1237 | Bool_t isPrim = kTRUE; | |
1238 | if (ilayer<4) { // check that it's close to the vertex | |
1239 | updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B. | |
1240 | if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y | |
1241 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() || | |
1242 | TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z | |
1243 | AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE; | |
1244 | } | |
1245 | if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); | |
1246 | } //apply vertex constrain | |
1247 | ntracks[ilayer]++; | |
1248 | } // create new hypothesis | |
1249 | else { | |
1250 | AliDebug(2,"chi2 too large"); | |
1251 | } | |
1252 | ||
1253 | } // loop over possible prolongations | |
1254 | ||
1255 | // allow one prolongation without clusters | |
1256 | if (constrain && itrack<=1 && TMath::Abs(currenttrack1.GetNSkipped())<1.e-13 && deadzoneSPD==kFALSE && ntracks[ilayer]<100) { | |
1257 | AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1); | |
1258 | // apply correction for material of the current layer | |
1259 | CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward"); | |
1260 | vtrack->SetClIndex(ilayer,-1); | |
1261 | modstatus = 3; // skipped | |
1262 | vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
1263 | vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx); | |
1264 | vtrack->IncrementNSkipped(); | |
1265 | ntracks[ilayer]++; | |
1266 | } | |
1267 | ||
1268 | ||
1269 | } // loop over tracks in layer ilayer+1 | |
1270 | ||
1271 | //loop over track candidates for the current layer | |
1272 | // | |
1273 | // | |
1274 | Int_t accepted=0; | |
1275 | ||
1276 | Int_t golden=0; | |
1277 | for (Int_t itrack=0;itrack<ntracks[ilayer];itrack++){ | |
1278 | normalizedchi2[itrack] = NormalizedChi2(&tracks[ilayer][itrack],ilayer); | |
1279 | if (normalizedchi2[itrack] < | |
1280 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2ForGolden(ilayer)) golden++; | |
1281 | if (ilayer>4) { | |
1282 | accepted++; | |
1283 | } else { | |
1284 | if (constrain) { // constrain | |
1285 | if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2C(ilayer)+1) | |
1286 | accepted++; | |
1287 | } else { // !constrain | |
1288 | if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonC(ilayer)+1) | |
1289 | accepted++; | |
1290 | } | |
1291 | } | |
1292 | } | |
1293 | // sort tracks by increasing normalized chi2 | |
1294 | TMath::Sort(ntracks[ilayer],normalizedchi2,nindexes[ilayer],kFALSE); | |
1295 | ntracks[ilayer] = TMath::Min(accepted,7+2*ilayer); | |
1296 | if (ntracks[ilayer]<golden+2+ilayer) ntracks[ilayer]=TMath::Min(golden+2+ilayer,accepted); | |
1297 | if (ntracks[ilayer]>90) ntracks[ilayer]=90; | |
1298 | } // end loop over layers | |
1299 | ||
1300 | ||
1301 | // | |
1302 | // Now select tracks to be kept | |
1303 | // | |
1304 | Int_t max = constrain ? 20 : 5; | |
1305 | ||
1306 | // tracks that reach layer 0 (SPD inner) | |
1307 | for (Int_t i=0; i<TMath::Min(max,ntracks[0]); i++) { | |
1308 | AliITStrackMI & track= tracks[0][nindexes[0][i]]; | |
1309 | if (track.GetNumberOfClusters()<2) continue; | |
1310 | if (!constrain && track.GetNormChi2(0) > | |
1311 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) { | |
1312 | continue; | |
1313 | } | |
1314 | AddTrackHypothesys(new AliITStrackMI(track), esdindex); | |
1315 | } | |
1316 | ||
1317 | // tracks that reach layer 1 (SPD outer) | |
1318 | for (Int_t i=0;i<TMath::Min(2,ntracks[1]);i++) { | |
1319 | AliITStrackMI & track= tracks[1][nindexes[1][i]]; | |
1320 | if (track.GetNumberOfClusters()<4) continue; | |
1321 | if (!constrain && track.GetNormChi2(1) > | |
1322 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue; | |
1323 | if (constrain) track.IncrementNSkipped(); | |
1324 | if (!constrain) { | |
1325 | track.SetD(0,track.GetD(GetX(),GetY())); | |
1326 | track.SetNSkipped(track.GetNSkipped()+4./(4.+8.*TMath::Abs(track.GetD(0)))); | |
1327 | if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) { | |
1328 | track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone()); | |
1329 | } | |
1330 | } | |
1331 | AddTrackHypothesys(new AliITStrackMI(track), esdindex); | |
1332 | } | |
1333 | ||
1334 | // tracks that reach layer 2 (SDD inner), only during non-constrained pass | |
1335 | if (!constrain){ | |
1336 | for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) { | |
1337 | AliITStrackMI & track= tracks[2][nindexes[2][i]]; | |
1338 | if (track.GetNumberOfClusters()<3) continue; | |
1339 | if (!constrain && track.GetNormChi2(2) > | |
1340 | AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue; | |
1341 | if (constrain) track.SetNSkipped(track.GetNSkipped()+2); | |
1342 | if (!constrain){ | |
1343 | track.SetD(0,track.GetD(GetX(),GetY())); | |
1344 | track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0)))); | |
1345 | if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) { | |
1346 | track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone()); | |
1347 | } | |
1348 | } | |
1349 | AddTrackHypothesys(new AliITStrackMI(track), esdindex); | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | if (!constrain) { | |
1354 | // | |
1355 | // register best track of each layer - important for V0 finder | |
1356 | // | |
1357 | for (Int_t ilayer=0;ilayer<5;ilayer++){ | |
1358 | if (ntracks[ilayer]==0) continue; | |
1359 | AliITStrackMI & track= tracks[ilayer][nindexes[ilayer][0]]; | |
1360 | if (track.GetNumberOfClusters()<1) continue; | |
1361 | CookLabel(&track,0); | |
1362 | bestarray->AddAt(new AliITStrackMI(track),ilayer); | |
1363 | } | |
1364 | } | |
1365 | // | |
1366 | // update TPC V0 information | |
1367 | // | |
1368 | if (otrack->GetESDtrack()->GetV0Index(0)>0){ | |
1369 | Float_t fprimvertex[3]={GetX(),GetY(),GetZ()}; | |
1370 | for (Int_t i=0;i<3;i++){ | |
1371 | Int_t index = otrack->GetESDtrack()->GetV0Index(i); | |
1372 | if (index==0) break; | |
1373 | AliV0 *vertex = (AliV0*)fEsd->GetV0(index); | |
1374 | if (vertex->GetStatus()<0) continue; // rejected V0 | |
1375 | // | |
1376 | if (otrack->GetSign()>0) { | |
1377 | vertex->SetIndex(0,esdindex); | |
1378 | } | |
1379 | else{ | |
1380 | vertex->SetIndex(1,esdindex); | |
1381 | } | |
1382 | //find nearest layer with track info | |
1383 | Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B. | |
1384 | Int_t nearestold = GetNearestLayer(xrp); //I.B. | |
1385 | Int_t nearest = nearestold; | |
1386 | for (Int_t ilayer =nearest;ilayer<8;ilayer++){ | |
1387 | if (ntracks[nearest]==0){ | |
1388 | nearest = ilayer; | |
1389 | } | |
1390 | } | |
1391 | // | |
1392 | AliITStrackMI & track= tracks[nearest][nindexes[nearest][0]]; | |
1393 | if (nearestold<5&&nearest<5){ | |
1394 | Bool_t accept = track.GetNormChi2(nearest)<10; | |
1395 | if (accept){ | |
1396 | if (track.GetSign()>0) { | |
1397 | vertex->SetParamP(track); | |
1398 | vertex->Update(fprimvertex); | |
1399 | //vertex->SetIndex(0,track.fESDtrack->GetID()); | |
1400 | if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex); | |
1401 | }else{ | |
1402 | vertex->SetParamN(track); | |
1403 | vertex->Update(fprimvertex); | |
1404 | //vertex->SetIndex(1,track.fESDtrack->GetID()); | |
1405 | if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex); | |
1406 | } | |
1407 | vertex->SetStatus(vertex->GetStatus()+1); | |
1408 | }else{ | |
1409 | //vertex->SetStatus(-2); // reject V0 - not enough clusters | |
1410 | } | |
1411 | } | |
1412 | } | |
1413 | } | |
1414 | ||
1415 | } | |
1416 | //------------------------------------------------------------------------ | |
1417 | AliITStrackerMI::AliITSlayer & AliITStrackerMI::GetLayer(Int_t layer) const | |
1418 | { | |
1419 | //-------------------------------------------------------------------- | |
1420 | // | |
1421 | // | |
1422 | return fgLayers[layer]; | |
1423 | } | |
1424 | //------------------------------------------------------------------------ | |
1425 | AliITStrackerMI::AliITSlayer::AliITSlayer(): | |
1426 | fR(0), | |
1427 | fPhiOffset(0), | |
1428 | fNladders(0), | |
1429 | fZOffset(0), | |
1430 | fNdetectors(0), | |
1431 | fDetectors(0), | |
1432 | fN(0), | |
1433 | fDy5(0), | |
1434 | fDy10(0), | |
1435 | fDy20(0), | |
1436 | fClustersCs(0), | |
1437 | fClusterIndexCs(0), | |
1438 | fYcs(0), | |
1439 | fZcs(0), | |
1440 | fNcs(0), | |
1441 | fCurrentSlice(-1), | |
1442 | fZmin(0), | |
1443 | fZmax(0), | |
1444 | fYmin(0), | |
1445 | fYmax(0), | |
1446 | fI(0), | |
1447 | fImax(0), | |
1448 | fSkip(0), | |
1449 | fAccepted(0), | |
1450 | fRoad(0), | |
1451 | fMaxSigmaClY(0), | |
1452 | fMaxSigmaClZ(0), | |
1453 | fNMaxSigmaCl(3) | |
1454 | { | |
1455 | //-------------------------------------------------------------------- | |
1456 | //default AliITSlayer constructor | |
1457 | //-------------------------------------------------------------------- | |
1458 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) { | |
1459 | fClusterWeight[i]=0; | |
1460 | fClusterTracks[0][i]=-1; | |
1461 | fClusterTracks[1][i]=-1; | |
1462 | fClusterTracks[2][i]=-1; | |
1463 | fClusterTracks[3][i]=-1; | |
1464 | } | |
1465 | } | |
1466 | //------------------------------------------------------------------------ | |
1467 | AliITStrackerMI::AliITSlayer:: | |
1468 | AliITSlayer(Double_t r,Double_t p,Double_t z,Int_t nl,Int_t nd): | |
1469 | fR(r), | |
1470 | fPhiOffset(p), | |
1471 | fNladders(nl), | |
1472 | fZOffset(z), | |
1473 | fNdetectors(nd), | |
1474 | fDetectors(0), | |
1475 | fN(0), | |
1476 | fDy5(0), | |
1477 | fDy10(0), | |
1478 | fDy20(0), | |
1479 | fClustersCs(0), | |
1480 | fClusterIndexCs(0), | |
1481 | fYcs(0), | |
1482 | fZcs(0), | |
1483 | fNcs(0), | |
1484 | fCurrentSlice(-1), | |
1485 | fZmin(0), | |
1486 | fZmax(0), | |
1487 | fYmin(0), | |
1488 | fYmax(0), | |
1489 | fI(0), | |
1490 | fImax(0), | |
1491 | fSkip(0), | |
1492 | fAccepted(0), | |
1493 | fRoad(0), | |
1494 | fMaxSigmaClY(0), | |
1495 | fMaxSigmaClZ(0), | |
1496 | fNMaxSigmaCl(3) { | |
1497 | //-------------------------------------------------------------------- | |
1498 | //main AliITSlayer constructor | |
1499 | //-------------------------------------------------------------------- | |
1500 | fDetectors=new AliITSdetector[fNladders*fNdetectors]; | |
1501 | fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster | |
1502 | } | |
1503 | //------------------------------------------------------------------------ | |
1504 | AliITStrackerMI::AliITSlayer::AliITSlayer(const AliITSlayer& layer): | |
1505 | fR(layer.fR), | |
1506 | fPhiOffset(layer.fPhiOffset), | |
1507 | fNladders(layer.fNladders), | |
1508 | fZOffset(layer.fZOffset), | |
1509 | fNdetectors(layer.fNdetectors), | |
1510 | fDetectors(layer.fDetectors), | |
1511 | fN(layer.fN), | |
1512 | fDy5(layer.fDy5), | |
1513 | fDy10(layer.fDy10), | |
1514 | fDy20(layer.fDy20), | |
1515 | fClustersCs(layer.fClustersCs), | |
1516 | fClusterIndexCs(layer.fClusterIndexCs), | |
1517 | fYcs(layer.fYcs), | |
1518 | fZcs(layer.fZcs), | |
1519 | fNcs(layer.fNcs), | |
1520 | fCurrentSlice(layer.fCurrentSlice), | |
1521 | fZmin(layer.fZmin), | |
1522 | fZmax(layer.fZmax), | |
1523 | fYmin(layer.fYmin), | |
1524 | fYmax(layer.fYmax), | |
1525 | fI(layer.fI), | |
1526 | fImax(layer.fImax), | |
1527 | fSkip(layer.fSkip), | |
1528 | fAccepted(layer.fAccepted), | |
1529 | fRoad(layer.fRoad), | |
1530 | fMaxSigmaClY(layer.fMaxSigmaClY), | |
1531 | fMaxSigmaClZ(layer.fMaxSigmaClZ), | |
1532 | fNMaxSigmaCl(layer.fNMaxSigmaCl) | |
1533 | { | |
1534 | //Copy constructor | |
1535 | } | |
1536 | //------------------------------------------------------------------------ | |
1537 | AliITStrackerMI::AliITSlayer::~AliITSlayer() { | |
1538 | //-------------------------------------------------------------------- | |
1539 | // AliITSlayer destructor | |
1540 | //-------------------------------------------------------------------- | |
1541 | delete [] fDetectors; | |
1542 | for (Int_t i=0; i<fN; i++) delete fClusters[i]; | |
1543 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) { | |
1544 | fClusterWeight[i]=0; | |
1545 | fClusterTracks[0][i]=-1; | |
1546 | fClusterTracks[1][i]=-1; | |
1547 | fClusterTracks[2][i]=-1; | |
1548 | fClusterTracks[3][i]=-1; | |
1549 | } | |
1550 | } | |
1551 | //------------------------------------------------------------------------ | |
1552 | void AliITStrackerMI::AliITSlayer::ResetClusters() { | |
1553 | //-------------------------------------------------------------------- | |
1554 | // This function removes loaded clusters | |
1555 | //-------------------------------------------------------------------- | |
1556 | for (Int_t i=0; i<fN; i++) delete fClusters[i]; | |
1557 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++){ | |
1558 | fClusterWeight[i]=0; | |
1559 | fClusterTracks[0][i]=-1; | |
1560 | fClusterTracks[1][i]=-1; | |
1561 | fClusterTracks[2][i]=-1; | |
1562 | fClusterTracks[3][i]=-1; | |
1563 | } | |
1564 | ||
1565 | fN=0; | |
1566 | fI=0; | |
1567 | } | |
1568 | //------------------------------------------------------------------------ | |
1569 | void AliITStrackerMI::AliITSlayer::ResetWeights() { | |
1570 | //-------------------------------------------------------------------- | |
1571 | // This function reset weights of the clusters | |
1572 | //-------------------------------------------------------------------- | |
1573 | for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) { | |
1574 | fClusterWeight[i]=0; | |
1575 | fClusterTracks[0][i]=-1; | |
1576 | fClusterTracks[1][i]=-1; | |
1577 | fClusterTracks[2][i]=-1; | |
1578 | fClusterTracks[3][i]=-1; | |
1579 | } | |
1580 | for (Int_t i=0; i<fN;i++) { | |
1581 | AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster(i); | |
1582 | if (cl&&cl->IsUsed()) cl->Use(); | |
1583 | } | |
1584 | ||
1585 | } | |
1586 | //------------------------------------------------------------------------ | |
1587 | void AliITStrackerMI::AliITSlayer::ResetRoad() { | |
1588 | //-------------------------------------------------------------------- | |
1589 | // This function calculates the road defined by the cluster density | |
1590 | //-------------------------------------------------------------------- | |
1591 | Int_t n=0; | |
1592 | for (Int_t i=0; i<fN; i++) { | |
1593 | if (TMath::Abs(fClusters[i]->GetZ())<fR) n++; | |
1594 | } | |
1595 | if (n>1) fRoad=2*fR*TMath::Sqrt(TMath::Pi()/n); | |
1596 | } | |
1597 | //------------------------------------------------------------------------ | |
1598 | Int_t AliITStrackerMI::AliITSlayer::InsertCluster(AliITSRecPoint *cl) { | |
1599 | //-------------------------------------------------------------------- | |
1600 | //This function adds a cluster to this layer | |
1601 | //-------------------------------------------------------------------- | |
1602 | if (fN==AliITSRecoParam::GetMaxClusterPerLayer()) { | |
1603 | return 1; | |
1604 | } | |
1605 | fCurrentSlice=-1; | |
1606 | fClusters[fN]=cl; | |
1607 | fN++; | |
1608 | AliITSdetector &det=GetDetector(cl->GetDetectorIndex()); | |
1609 | //AD | |
1610 | Double_t nSigmaY=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaY2()); | |
1611 | Double_t nSigmaZ=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaZ2()); | |
1612 | if (cl->GetY()-nSigmaY<det.GetYmin()) det.SetYmin(cl->GetY()-nSigmaY); | |
1613 | if (cl->GetY()+nSigmaY>det.GetYmax()) det.SetYmax(cl->GetY()+nSigmaY); | |
1614 | if (cl->GetZ()-nSigmaZ<det.GetZmin()) det.SetZmin(cl->GetZ()-nSigmaZ); | |
1615 | if (cl->GetZ()+nSigmaZ>det.GetZmax()) det.SetZmax(cl->GetZ()+nSigmaZ); | |
1616 | //AD | |
1617 | /* | |
1618 | if (cl->GetY()<det.GetYmin()) det.SetYmin(cl->GetY()); | |
1619 | if (cl->GetY()>det.GetYmax()) det.SetYmax(cl->GetY()); | |
1620 | if (cl->GetZ()<det.GetZmin()) det.SetZmin(cl->GetZ()); | |
1621 | if (cl->GetZ()>det.GetZmax()) det.SetZmax(cl->GetZ()); | |
1622 | */ | |
1623 | return 0; | |
1624 | } | |
1625 | //------------------------------------------------------------------------ | |
1626 | void AliITStrackerMI::AliITSlayer::SortClusters() | |
1627 | { | |
1628 | // | |
1629 | //sort clusters | |
1630 | // | |
1631 | AliITSRecPoint **clusters = new AliITSRecPoint*[fN]; | |
1632 | Float_t *z = new Float_t[fN]; | |
1633 | Int_t * index = new Int_t[fN]; | |
1634 | // | |
1635 | fMaxSigmaClY=0.; //AD | |
1636 | fMaxSigmaClZ=0.; //AD | |
1637 | ||
1638 | for (Int_t i=0;i<fN;i++){ | |
1639 | z[i] = fClusters[i]->GetZ(); | |
1640 | // save largest errors in y and z for this layer | |
1641 | fMaxSigmaClY=TMath::Max(fMaxSigmaClY,TMath::Sqrt(fClusters[i]->GetSigmaY2())); | |
1642 | fMaxSigmaClZ=TMath::Max(fMaxSigmaClZ,TMath::Sqrt(fClusters[i]->GetSigmaZ2())); | |
1643 | } | |
1644 | TMath::Sort(fN,z,index,kFALSE); | |
1645 | for (Int_t i=0;i<fN;i++){ | |
1646 | clusters[i] = fClusters[index[i]]; | |
1647 | } | |
1648 | // | |
1649 | for (Int_t i=0;i<fN;i++){ | |
1650 | fClusters[i] = clusters[i]; | |
1651 | fZ[i] = fClusters[i]->GetZ(); | |
1652 | AliITSdetector &det=GetDetector(fClusters[i]->GetDetectorIndex()); | |
1653 | Double_t y=fR*det.GetPhi() + fClusters[i]->GetY(); | |
1654 | if (y>2.*fR*TMath::Pi()) y -= 2.*fR*TMath::Pi(); | |
1655 | fY[i] = y; | |
1656 | } | |
1657 | delete[] index; | |
1658 | delete[] z; | |
1659 | delete[] clusters; | |
1660 | // | |
1661 | ||
1662 | fYB[0]=10000000; | |
1663 | fYB[1]=-10000000; | |
1664 | for (Int_t i=0;i<fN;i++){ | |
1665 | if (fY[i]<fYB[0]) fYB[0]=fY[i]; | |
1666 | if (fY[i]>fYB[1]) fYB[1]=fY[i]; | |
1667 | fClusterIndex[i] = i; | |
1668 | } | |
1669 | // | |
1670 | // fill slices | |
1671 | fDy5 = (fYB[1]-fYB[0])/5.; | |
1672 | fDy10 = (fYB[1]-fYB[0])/10.; | |
1673 | fDy20 = (fYB[1]-fYB[0])/20.; | |
1674 | for (Int_t i=0;i<6;i++) fN5[i] =0; | |
1675 | for (Int_t i=0;i<11;i++) fN10[i]=0; | |
1676 | for (Int_t i=0;i<21;i++) fN20[i]=0; | |
1677 | // | |
1678 | 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;} | |
1679 | 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;} | |
1680 | 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;} | |
1681 | // | |
1682 | // | |
1683 | for (Int_t i=0;i<fN;i++) | |
1684 | for (Int_t irot=-1;irot<=1;irot++){ | |
1685 | Float_t curY = fY[i]+irot*TMath::TwoPi()*fR; | |
1686 | // slice 5 | |
1687 | for (Int_t slice=0; slice<6;slice++){ | |
1688 | if (fBy5[slice][0]<curY && curY<fBy5[slice][1]&&fN5[slice]<AliITSRecoParam::GetMaxClusterPerLayer5()){ | |
1689 | fClusters5[slice][fN5[slice]] = fClusters[i]; | |
1690 | fY5[slice][fN5[slice]] = curY; | |
1691 | fZ5[slice][fN5[slice]] = fZ[i]; | |
1692 | fClusterIndex5[slice][fN5[slice]]=i; | |
1693 | fN5[slice]++; | |
1694 | } | |
1695 | } | |
1696 | // slice 10 | |
1697 | for (Int_t slice=0; slice<11;slice++){ | |
1698 | if (fBy10[slice][0]<curY && curY<fBy10[slice][1]&&fN10[slice]<AliITSRecoParam::GetMaxClusterPerLayer10()){ | |
1699 | fClusters10[slice][fN10[slice]] = fClusters[i]; | |
1700 | fY10[slice][fN10[slice]] = curY; | |
1701 | fZ10[slice][fN10[slice]] = fZ[i]; | |
1702 | fClusterIndex10[slice][fN10[slice]]=i; | |
1703 | fN10[slice]++; | |
1704 | } | |
1705 | } | |
1706 | // slice 20 | |
1707 | for (Int_t slice=0; slice<21;slice++){ | |
1708 | if (fBy20[slice][0]<curY && curY<fBy20[slice][1]&&fN20[slice]<AliITSRecoParam::GetMaxClusterPerLayer20()){ | |
1709 | fClusters20[slice][fN20[slice]] = fClusters[i]; | |
1710 | fY20[slice][fN20[slice]] = curY; | |
1711 | fZ20[slice][fN20[slice]] = fZ[i]; | |
1712 | fClusterIndex20[slice][fN20[slice]]=i; | |
1713 | fN20[slice]++; | |
1714 | } | |
1715 | } | |
1716 | } | |
1717 | ||
1718 | // | |
1719 | // consistency check | |
1720 | // | |
1721 | for (Int_t i=0;i<fN-1;i++){ | |
1722 | if (fZ[i]>fZ[i+1]){ | |
1723 | printf("Bug\n"); | |
1724 | } | |
1725 | } | |
1726 | // | |
1727 | for (Int_t slice=0;slice<21;slice++) | |
1728 | for (Int_t i=0;i<fN20[slice]-1;i++){ | |
1729 | if (fZ20[slice][i]>fZ20[slice][i+1]){ | |
1730 | printf("Bug\n"); | |
1731 | } | |
1732 | } | |
1733 | ||
1734 | ||
1735 | } | |
1736 | //------------------------------------------------------------------------ | |
1737 | Int_t AliITStrackerMI::AliITSlayer::FindClusterIndex(Float_t z) const { | |
1738 | //-------------------------------------------------------------------- | |
1739 | // This function returns the index of the nearest cluster | |
1740 | //-------------------------------------------------------------------- | |
1741 | Int_t ncl=0; | |
1742 | const Float_t *zcl; | |
1743 | if (fCurrentSlice<0) { | |
1744 | ncl = fN; | |
1745 | zcl = fZ; | |
1746 | } | |
1747 | else{ | |
1748 | ncl = fNcs; | |
1749 | zcl = fZcs;; | |
1750 | } | |
1751 | ||
1752 | if (ncl==0) return 0; | |
1753 | Int_t b=0, e=ncl-1, m=(b+e)/2; | |
1754 | for (; b<e; m=(b+e)/2) { | |
1755 | // if (z > fClusters[m]->GetZ()) b=m+1; | |
1756 | if (z > zcl[m]) b=m+1; | |
1757 | else e=m; | |
1758 | } | |
1759 | return m; | |
1760 | } | |
1761 | //------------------------------------------------------------------------ | |
1762 | 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 { | |
1763 | //-------------------------------------------------------------------- | |
1764 | // This function computes the rectangular road for this track | |
1765 | //-------------------------------------------------------------------- | |
1766 | ||
1767 | ||
1768 | AliITSdetector &det = fgLayers[ilayer].GetDetector(idet); | |
1769 | // take into account the misalignment: propagate track to misaligned detector plane | |
1770 | if (!track->Propagate(det.GetPhi(),det.GetRmisal())) return kFALSE; | |
1771 | ||
1772 | Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()* | |
1773 | TMath::Sqrt(track->GetSigmaZ2() + | |
1774 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1775 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
1776 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer)); | |
1777 | Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()* | |
1778 | TMath::Sqrt(track->GetSigmaY2() + | |
1779 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1780 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
1781 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer)); | |
1782 | ||
1783 | // track at boundary between detectors, enlarge road | |
1784 | Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth(); | |
1785 | if ( (track->GetY()-dy < det.GetYmin()+boundaryWidth) || | |
1786 | (track->GetY()+dy > det.GetYmax()-boundaryWidth) || | |
1787 | (track->GetZ()-dz < det.GetZmin()+boundaryWidth) || | |
1788 | (track->GetZ()+dz > det.GetZmax()-boundaryWidth) ) { | |
1789 | Float_t tgl = TMath::Abs(track->GetTgl()); | |
1790 | if (tgl > 1.) tgl=1.; | |
1791 | Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets(); | |
1792 | dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl); | |
1793 | Float_t snp = TMath::Abs(track->GetSnp()); | |
1794 | if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) return kFALSE; | |
1795 | dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp); | |
1796 | } // boundary | |
1797 | ||
1798 | // add to the road a term (up to 2-3 mm) to deal with misalignments | |
1799 | dy = TMath::Sqrt(dy*dy + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal()); | |
1800 | dz = TMath::Sqrt(dz*dz + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal()); | |
1801 | ||
1802 | Double_t r = fgLayers[ilayer].GetR(); | |
1803 | zmin = track->GetZ() - dz; | |
1804 | zmax = track->GetZ() + dz; | |
1805 | ymin = track->GetY() + r*det.GetPhi() - dy; | |
1806 | ymax = track->GetY() + r*det.GetPhi() + dy; | |
1807 | ||
1808 | // bring track back to idead detector plane | |
1809 | if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE; | |
1810 | ||
1811 | return kTRUE; | |
1812 | } | |
1813 | //------------------------------------------------------------------------ | |
1814 | void AliITStrackerMI::AliITSlayer:: | |
1815 | SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) { | |
1816 | //-------------------------------------------------------------------- | |
1817 | // This function sets the "window" | |
1818 | //-------------------------------------------------------------------- | |
1819 | ||
1820 | Double_t circle=2*TMath::Pi()*fR; | |
1821 | fYmin = ymin; | |
1822 | fYmax = ymax; | |
1823 | fZmin = zmin; | |
1824 | fZmax = zmax; | |
1825 | // AD | |
1826 | // enlarge road in y by maximum cluster error on this layer (3 sigma) | |
1827 | fYmin -= fNMaxSigmaCl*fMaxSigmaClY; | |
1828 | fYmax += fNMaxSigmaCl*fMaxSigmaClY; | |
1829 | fZmin -= fNMaxSigmaCl*fMaxSigmaClZ; | |
1830 | fZmax += fNMaxSigmaCl*fMaxSigmaClZ; | |
1831 | ||
1832 | Float_t ymiddle = (fYmin+fYmax)*0.5; | |
1833 | if (ymiddle<fYB[0]) { | |
1834 | fYmin+=circle; fYmax+=circle; ymiddle+=circle; | |
1835 | } else if (ymiddle>fYB[1]) { | |
1836 | fYmin-=circle; fYmax-=circle; ymiddle-=circle; | |
1837 | } | |
1838 | ||
1839 | // | |
1840 | fCurrentSlice =-1; | |
1841 | // defualt take all | |
1842 | fClustersCs = fClusters; | |
1843 | fClusterIndexCs = fClusterIndex; | |
1844 | fYcs = fY; | |
1845 | fZcs = fZ; | |
1846 | fNcs = fN; | |
1847 | // | |
1848 | //is in 20 slice? | |
1849 | if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy20){ | |
1850 | Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy20); | |
1851 | if (slice<0) slice=0; | |
1852 | if (slice>20) slice=20; | |
1853 | Bool_t isOK = (fYmin>fBy20[slice][0]&&fYmax<fBy20[slice][1]); | |
1854 | if (isOK) { | |
1855 | fCurrentSlice=slice; | |
1856 | fClustersCs = fClusters20[fCurrentSlice]; | |
1857 | fClusterIndexCs = fClusterIndex20[fCurrentSlice]; | |
1858 | fYcs = fY20[fCurrentSlice]; | |
1859 | fZcs = fZ20[fCurrentSlice]; | |
1860 | fNcs = fN20[fCurrentSlice]; | |
1861 | } | |
1862 | } | |
1863 | // | |
1864 | //is in 10 slice? | |
1865 | if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy10){ | |
1866 | Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy10); | |
1867 | if (slice<0) slice=0; | |
1868 | if (slice>10) slice=10; | |
1869 | Bool_t isOK = (fYmin>fBy10[slice][0]&&fYmax<fBy10[slice][1]); | |
1870 | if (isOK) { | |
1871 | fCurrentSlice=slice; | |
1872 | fClustersCs = fClusters10[fCurrentSlice]; | |
1873 | fClusterIndexCs = fClusterIndex10[fCurrentSlice]; | |
1874 | fYcs = fY10[fCurrentSlice]; | |
1875 | fZcs = fZ10[fCurrentSlice]; | |
1876 | fNcs = fN10[fCurrentSlice]; | |
1877 | } | |
1878 | } | |
1879 | // | |
1880 | //is in 5 slice? | |
1881 | if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy5){ | |
1882 | Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy5); | |
1883 | if (slice<0) slice=0; | |
1884 | if (slice>5) slice=5; | |
1885 | Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]); | |
1886 | if (isOK) { | |
1887 | fCurrentSlice=slice; | |
1888 | fClustersCs = fClusters5[fCurrentSlice]; | |
1889 | fClusterIndexCs = fClusterIndex5[fCurrentSlice]; | |
1890 | fYcs = fY5[fCurrentSlice]; | |
1891 | fZcs = fZ5[fCurrentSlice]; | |
1892 | fNcs = fN5[fCurrentSlice]; | |
1893 | } | |
1894 | } | |
1895 | // | |
1896 | fI = FindClusterIndex(fZmin); | |
1897 | fImax = TMath::Min(FindClusterIndex(fZmax)+1,fNcs); | |
1898 | fSkip = 0; | |
1899 | fAccepted = 0; | |
1900 | ||
1901 | return; | |
1902 | } | |
1903 | //------------------------------------------------------------------------ | |
1904 | Int_t AliITStrackerMI::AliITSlayer:: | |
1905 | FindDetectorIndex(Double_t phi, Double_t z) const { | |
1906 | //-------------------------------------------------------------------- | |
1907 | //This function finds the detector crossed by the track | |
1908 | //-------------------------------------------------------------------- | |
1909 | Double_t dphi; | |
1910 | if (fZOffset<0) // old geometry | |
1911 | dphi = -(phi-fPhiOffset); | |
1912 | else // new geometry | |
1913 | dphi = phi-fPhiOffset; | |
1914 | ||
1915 | ||
1916 | if (dphi < 0) dphi += 2*TMath::Pi(); | |
1917 | else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi(); | |
1918 | Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5); | |
1919 | if (np>=fNladders) np-=fNladders; | |
1920 | if (np<0) np+=fNladders; | |
1921 | ||
1922 | ||
1923 | Double_t dz=fZOffset-z; | |
1924 | Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5; | |
1925 | Int_t nz = (nnz<0 ? -1 : (Int_t)nnz); | |
1926 | if (nz>=fNdetectors || nz<0) { | |
1927 | //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz); | |
1928 | return -1; | |
1929 | } | |
1930 | ||
1931 | // ad hoc correction for 3rd ladder of SDD inner layer, | |
1932 | // which is reversed (rotated by pi around local y) | |
1933 | // this correction is OK only from AliITSv11Hybrid onwards | |
1934 | if (GetR()>12. && GetR()<20.) { // SDD inner | |
1935 | if(np==2) { // 3rd ladder | |
1936 | Double_t posMod252[3]; | |
1937 | AliITSgeomTGeo::GetTranslation(252,posMod252); | |
1938 | // check the Z coordinate of Mod 252: if negative | |
1939 | // (old SDD geometry in AliITSv11Hybrid) | |
1940 | // the swap of numeration whould be applied | |
1941 | if(posMod252[2]<0.){ | |
1942 | nz = (fNdetectors-1) - nz; | |
1943 | } | |
1944 | } | |
1945 | } | |
1946 | //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz); | |
1947 | ||
1948 | ||
1949 | return np*fNdetectors + nz; | |
1950 | } | |
1951 | //------------------------------------------------------------------------ | |
1952 | const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci,Bool_t test) | |
1953 | { | |
1954 | //-------------------------------------------------------------------- | |
1955 | // This function returns clusters within the "window" | |
1956 | //-------------------------------------------------------------------- | |
1957 | ||
1958 | if (fCurrentSlice<0) { | |
1959 | Double_t rpi2 = 2.*fR*TMath::Pi(); | |
1960 | for (Int_t i=fI; i<fImax; i++) { | |
1961 | Double_t y = fY[i]; | |
1962 | Double_t z = fZ[i]; | |
1963 | if (fYmax<y) y -= rpi2; | |
1964 | if (fYmin>y) y += rpi2; | |
1965 | if (y<fYmin) continue; | |
1966 | if (y>fYmax) continue; | |
1967 | // AD | |
1968 | // skip clusters that are in "extended" road but they | |
1969 | // 3sigma error does not touch the original road | |
1970 | if (z+fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())<fZmin+fNMaxSigmaCl*fMaxSigmaClZ) continue; | |
1971 | if (z-fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())>fZmax-fNMaxSigmaCl*fMaxSigmaClZ) continue; | |
1972 | // | |
1973 | if (TMath::Abs(fClusters[i]->GetQ())<1.e-13 && fSkip==2) continue; | |
1974 | ci=i; | |
1975 | if (!test) fI=i+1; | |
1976 | return fClusters[i]; | |
1977 | } | |
1978 | } else { | |
1979 | for (Int_t i=fI; i<fImax; i++) { | |
1980 | if (fYcs[i]<fYmin) continue; | |
1981 | if (fYcs[i]>fYmax) continue; | |
1982 | if (TMath::Abs(fClustersCs[i]->GetQ())<1.e-13 && fSkip==2) continue; | |
1983 | ci=fClusterIndexCs[i]; | |
1984 | if (!test) fI=i+1; | |
1985 | return fClustersCs[i]; | |
1986 | } | |
1987 | } | |
1988 | return 0; | |
1989 | } | |
1990 | //------------------------------------------------------------------------ | |
1991 | Double_t AliITStrackerMI::AliITSlayer::GetThickness(Double_t y,Double_t z,Double_t &x0) | |
1992 | const { | |
1993 | //-------------------------------------------------------------------- | |
1994 | // This function returns the layer thickness at this point (units X0) | |
1995 | //-------------------------------------------------------------------- | |
1996 | Double_t d=0.0085; | |
1997 | x0=AliITSRecoParam::GetX0Air(); | |
1998 | if (43<fR&&fR<45) { //SSD2 | |
1999 | Double_t dd=0.0034; | |
2000 | d=dd; | |
2001 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2002 | if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);} | |
2003 | if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);} | |
2004 | for (Int_t i=0; i<12; i++) { | |
2005 | if (TMath::Abs(z-3.9*(i+0.5))<0.15) { | |
2006 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2007 | d+=0.0034; | |
2008 | break; | |
2009 | } | |
2010 | if (TMath::Abs(z+3.9*(i+0.5))<0.15) { | |
2011 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2012 | d+=0.0034; | |
2013 | break; | |
2014 | } | |
2015 | if (TMath::Abs(z-3.4-3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2016 | if (TMath::Abs(z+0.5+3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2017 | } | |
2018 | } else | |
2019 | if (37<fR&&fR<41) { //SSD1 | |
2020 | Double_t dd=0.0034; | |
2021 | d=dd; | |
2022 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2023 | if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);} | |
2024 | if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);} | |
2025 | for (Int_t i=0; i<11; i++) { | |
2026 | if (TMath::Abs(z-3.9*i)<0.15) { | |
2027 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2028 | d+=dd; | |
2029 | break; | |
2030 | } | |
2031 | if (TMath::Abs(z+3.9*i)<0.15) { | |
2032 | if (TMath::Abs(y-0.00)>3.40) d+=dd; | |
2033 | d+=dd; | |
2034 | break; | |
2035 | } | |
2036 | if (TMath::Abs(z-1.85-3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2037 | if (TMath::Abs(z+2.05+3.9*i)<0.50) {d+=(0.016-0.0034); break;} | |
2038 | } | |
2039 | } else | |
2040 | if (13<fR&&fR<26) { //SDD | |
2041 | Double_t dd=0.0033; | |
2042 | d=dd; | |
2043 | if (TMath::Abs(y-0.00)>3.30) d+=dd; | |
2044 | ||
2045 | if (TMath::Abs(y-1.80)<0.55) { | |
2046 | d+=0.016; | |
2047 | for (Int_t j=0; j<20; j++) { | |
2048 | if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2049 | if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2050 | } | |
2051 | } | |
2052 | if (TMath::Abs(y+1.80)<0.55) { | |
2053 | d+=0.016; | |
2054 | for (Int_t j=0; j<20; j++) { | |
2055 | if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2056 | if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;} | |
2057 | } | |
2058 | } | |
2059 | ||
2060 | for (Int_t i=0; i<4; i++) { | |
2061 | if (TMath::Abs(z-7.3*i)<0.60) { | |
2062 | d+=dd; | |
2063 | if (TMath::Abs(y-0.00)>3.30) d+=dd; | |
2064 | break; | |
2065 | } | |
2066 | if (TMath::Abs(z+7.3*i)<0.60) { | |
2067 | d+=dd; | |
2068 | if (TMath::Abs(y-0.00)>3.30) d+=dd; | |
2069 | break; | |
2070 | } | |
2071 | } | |
2072 | } else | |
2073 | if (6<fR&&fR<8) { //SPD2 | |
2074 | Double_t dd=0.0063; x0=21.5; | |
2075 | d=dd; | |
2076 | if (TMath::Abs(y-3.08)>0.5) d+=dd; | |
2077 | if (TMath::Abs(y-3.03)<0.10) d+=0.014; | |
2078 | } else | |
2079 | if (3<fR&&fR<5) { //SPD1 | |
2080 | Double_t dd=0.0063; x0=21.5; | |
2081 | d=dd; | |
2082 | if (TMath::Abs(y+0.21)>0.6) d+=dd; | |
2083 | if (TMath::Abs(y+0.10)<0.10) d+=0.014; | |
2084 | } | |
2085 | ||
2086 | return d; | |
2087 | } | |
2088 | //------------------------------------------------------------------------ | |
2089 | AliITStrackerMI::AliITSdetector::AliITSdetector(const AliITSdetector& det): | |
2090 | fR(det.fR), | |
2091 | fRmisal(det.fRmisal), | |
2092 | fPhi(det.fPhi), | |
2093 | fSinPhi(det.fSinPhi), | |
2094 | fCosPhi(det.fCosPhi), | |
2095 | fYmin(det.fYmin), | |
2096 | fYmax(det.fYmax), | |
2097 | fZmin(det.fZmin), | |
2098 | fZmax(det.fZmax), | |
2099 | fIsBad(det.fIsBad), | |
2100 | fNChips(det.fNChips), | |
2101 | fChipIsBad(det.fChipIsBad) | |
2102 | { | |
2103 | //Copy constructor | |
2104 | } | |
2105 | //------------------------------------------------------------------------ | |
2106 | void AliITStrackerMI::AliITSdetector::ReadBadDetectorAndChips(Int_t ilayer,Int_t idet, | |
2107 | const AliITSDetTypeRec *detTypeRec) | |
2108 | { | |
2109 | //-------------------------------------------------------------------- | |
2110 | // Read bad detectors and chips from calibration objects in AliITSDetTypeRec | |
2111 | //-------------------------------------------------------------------- | |
2112 | ||
2113 | // In AliITSDetTypeRec, detector numbers go from 0 to 2197 | |
2114 | // while in the tracker they start from 0 for each layer | |
2115 | for(Int_t il=0; il<ilayer; il++) | |
2116 | idet += AliITSgeomTGeo::GetNLadders(il+1)*AliITSgeomTGeo::GetNDetectors(il+1); | |
2117 | ||
2118 | Int_t detType; | |
2119 | if (ilayer==0 || ilayer==1) { // ---------- SPD | |
2120 | detType = 0; | |
2121 | } else if (ilayer==2 || ilayer==3) { // ---------- SDD | |
2122 | detType = 1; | |
2123 | } else if (ilayer==4 || ilayer==5) { // ---------- SSD | |
2124 | detType = 2; | |
2125 | } else { | |
2126 | printf("AliITStrackerMI::AliITSdetector::InitBadFromOCDB: Wrong layer number %d\n",ilayer); | |
2127 | return; | |
2128 | } | |
2129 | ||
2130 | // Get calibration from AliITSDetTypeRec | |
2131 | AliITSCalibration *calib = (AliITSCalibration*)detTypeRec->GetCalibrationModel(idet); | |
2132 | calib->SetModuleIndex(idet); | |
2133 | AliITSCalibration *calibSPDdead = 0; | |
2134 | if(detType==0) calibSPDdead = (AliITSCalibration*)detTypeRec->GetSPDDeadModel(idet); // TEMPORARY | |
2135 | if (calib->IsBad() || | |
2136 | (detType==0 && calibSPDdead->IsBad())) // TEMPORARY | |
2137 | { | |
2138 | SetBad(); | |
2139 | // printf("lay %d bad %d\n",ilayer,idet); | |
2140 | } | |
2141 | ||
2142 | // Get segmentation from AliITSDetTypeRec | |
2143 | AliITSsegmentation *segm = (AliITSsegmentation*)detTypeRec->GetSegmentationModel(detType); | |
2144 | ||
2145 | // Read info about bad chips | |
2146 | fNChips = segm->GetMaximumChipIndex()+1; | |
2147 | //printf("ilayer %d detType %d idet %d fNChips %d %d GetNumberOfChips %d\n",ilayer,detType,idet,fNChips,segm->GetMaximumChipIndex(),segm->GetNumberOfChips()); | |
2148 | if(fChipIsBad) { delete [] fChipIsBad; fChipIsBad=NULL; } | |
2149 | fChipIsBad = new Bool_t[fNChips]; | |
2150 | for (Int_t iCh=0;iCh<fNChips;iCh++) { | |
2151 | fChipIsBad[iCh] = calib->IsChipBad(iCh); | |
2152 | if (detType==0 && calibSPDdead->IsChipBad(iCh)) fChipIsBad[iCh] = kTRUE; // TEMPORARY | |
2153 | //if(fChipIsBad[iCh]) {printf("lay %d det %d bad chip %d\n",ilayer,idet,iCh);} | |
2154 | } | |
2155 | ||
2156 | return; | |
2157 | } | |
2158 | //------------------------------------------------------------------------ | |
2159 | Double_t AliITStrackerMI::GetEffectiveThickness() | |
2160 | { | |
2161 | //-------------------------------------------------------------------- | |
2162 | // Returns the thickness between the current layer and the vertex (units X0) | |
2163 | //-------------------------------------------------------------------- | |
2164 | ||
2165 | if(fUseTGeo!=0) { | |
2166 | if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers"); | |
2167 | if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields"); | |
2168 | if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe"); | |
2169 | } | |
2170 | ||
2171 | // beam pipe | |
2172 | Double_t dPipe = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe); | |
2173 | Double_t d=dPipe*AliITSRecoParam::GetrPipe()*AliITSRecoParam::GetrPipe(); | |
2174 | ||
2175 | // layers | |
2176 | Double_t x0=0; | |
2177 | Double_t xn=fgLayers[fI].GetR(); | |
2178 | for (Int_t i=0; i<fI; i++) { | |
2179 | Double_t xi=fgLayers[i].GetR(); | |
2180 | Double_t dLayer = (fUseTGeo==0 ? fgLayers[i].GetThickness(0,0,x0) : fxOverX0Layer[i]); | |
2181 | d+=dLayer*xi*xi; | |
2182 | } | |
2183 | ||
2184 | // shields | |
2185 | if (fI>1) { | |
2186 | Double_t dshieldSPD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]); | |
2187 | d+=dshieldSPD*AliITSRecoParam::GetrInsideShield(0)*AliITSRecoParam::GetrInsideShield(0); | |
2188 | } | |
2189 | if (fI>3) { | |
2190 | Double_t dshieldSDD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]); | |
2191 | d+=dshieldSDD*AliITSRecoParam::GetrInsideShield(1)*AliITSRecoParam::GetrInsideShield(1); | |
2192 | } | |
2193 | return d/(xn*xn); | |
2194 | } | |
2195 | //------------------------------------------------------------------------ | |
2196 | Int_t AliITStrackerMI::AliITSlayer::InRoad() const { | |
2197 | //------------------------------------------------------------------- | |
2198 | // This function returns number of clusters within the "window" | |
2199 | //-------------------------------------------------------------------- | |
2200 | Int_t ncl=0; | |
2201 | for (Int_t i=fI; i<fN; i++) { | |
2202 | const AliITSRecPoint *c=fClusters[i]; | |
2203 | if (c->GetZ() > fZmax) break; | |
2204 | if (c->IsUsed()) continue; | |
2205 | const AliITSdetector &det=GetDetector(c->GetDetectorIndex()); | |
2206 | Double_t y=fR*det.GetPhi() + c->GetY(); | |
2207 | ||
2208 | if (y>2.*fR*TMath::Pi()) y -= 2*fR*TMath::Pi(); | |
2209 | if (y>1.*fR*TMath::Pi() && fYmax<y) y -= 2*fR*TMath::Pi(); | |
2210 | ||
2211 | if (y<fYmin) continue; | |
2212 | if (y>fYmax) continue; | |
2213 | ncl++; | |
2214 | } | |
2215 | return ncl; | |
2216 | } | |
2217 | //------------------------------------------------------------------------ | |
2218 | Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track, | |
2219 | const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff) | |
2220 | { | |
2221 | //-------------------------------------------------------------------- | |
2222 | // This function refits the track "track" at the position "x" using | |
2223 | // the clusters from "clusters" | |
2224 | // If "extra"==kTRUE, | |
2225 | // the clusters from overlapped modules get attached to "track" | |
2226 | // If "planeff"==kTRUE, | |
2227 | // special approach for plane efficiency evaluation is applyed | |
2228 | //-------------------------------------------------------------------- | |
2229 | ||
2230 | Int_t index[AliITSgeomTGeo::kNLayers]; | |
2231 | Int_t k; | |
2232 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1; | |
2233 | Int_t nc=clusters->GetNumberOfClusters(); | |
2234 | for (k=0; k<nc; k++) { | |
2235 | Int_t idx=clusters->GetClusterIndex(k); | |
2236 | Int_t ilayer=(idx&0xf0000000)>>28; | |
2237 | index[ilayer]=idx; | |
2238 | } | |
2239 | ||
2240 | return RefitAt(xx,track,index,extra,planeeff); // call the method below | |
2241 | } | |
2242 | //------------------------------------------------------------------------ | |
2243 | Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track, | |
2244 | const Int_t *clusters,Bool_t extra, Bool_t planeeff) | |
2245 | { | |
2246 | //-------------------------------------------------------------------- | |
2247 | // This function refits the track "track" at the position "x" using | |
2248 | // the clusters from array | |
2249 | // If "extra"==kTRUE, | |
2250 | // the clusters from overlapped modules get attached to "track" | |
2251 | // If "planeff"==kTRUE, | |
2252 | // special approach for plane efficiency evaluation is applyed | |
2253 | //-------------------------------------------------------------------- | |
2254 | Int_t index[AliITSgeomTGeo::kNLayers]; | |
2255 | Int_t k; | |
2256 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1; | |
2257 | // | |
2258 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) { | |
2259 | index[k]=clusters[k]; | |
2260 | } | |
2261 | ||
2262 | // special for cosmics and TPC prolonged tracks: | |
2263 | // propagate to the innermost of: | |
2264 | // - innermost layer crossed by the track | |
2265 | // - innermost layer where a cluster was associated to the track | |
2266 | static AliITSRecoParam *repa = NULL; | |
2267 | if(!repa){ | |
2268 | repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam(); | |
2269 | if(!repa){ | |
2270 | repa = AliITSRecoParam::GetHighFluxParam(); | |
2271 | AliWarning("Using default AliITSRecoParam class"); | |
2272 | } | |
2273 | } | |
2274 | Int_t evsp=repa->GetEventSpecie(); | |
2275 | ULong_t trStatus=0; | |
2276 | if(track->GetESDtrack()) trStatus=track->GetStatus(); | |
2277 | Int_t innermostlayer=0; | |
2278 | if((evsp&AliRecoParam::kCosmic) || (trStatus&AliESDtrack::kTPCin)) { | |
2279 | innermostlayer=5; | |
2280 | Double_t drphi = TMath::Abs(track->GetD(0.,0.)); | |
2281 | for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) { | |
2282 | if( (drphi < (fgLayers[innermostlayer].GetR()+1.)) || | |
2283 | index[innermostlayer] >= 0 ) break; | |
2284 | } | |
2285 | ||
2286 | AliDebug(2,Form(" drphi %f innermost %d",drphi,innermostlayer)); | |
2287 | } | |
2288 | ||
2289 | Int_t modstatus=1; // found | |
2290 | Float_t xloc,zloc; | |
2291 | Int_t from, to, step; | |
2292 | if (xx > track->GetX()) { | |
2293 | from=innermostlayer; to=AliITSgeomTGeo::GetNLayers(); | |
2294 | step=+1; | |
2295 | } else { | |
2296 | from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1; | |
2297 | step=-1; | |
2298 | } | |
2299 | TString dir = (step>0 ? "outward" : "inward"); | |
2300 | ||
2301 | for (Int_t ilayer = from; ilayer != to; ilayer += step) { | |
2302 | AliITSlayer &layer=fgLayers[ilayer]; | |
2303 | Double_t r=layer.GetR(); | |
2304 | ||
2305 | if (step<0 && xx>r) break; | |
2306 | ||
2307 | // material between SSD and SDD, SDD and SPD | |
2308 | Double_t hI=ilayer-0.5*step; | |
2309 | if (TMath::Abs(hI-3.5)<0.01) // SDDouter | |
2310 | if(!CorrectForShieldMaterial(track,"SDD",dir)) return kFALSE; | |
2311 | if (TMath::Abs(hI-1.5)<0.01) // SPDouter | |
2312 | if(!CorrectForShieldMaterial(track,"SPD",dir)) return kFALSE; | |
2313 | ||
2314 | ||
2315 | Double_t oldGlobXYZ[3]; | |
2316 | if (!track->GetXYZ(oldGlobXYZ)) return kFALSE; | |
2317 | ||
2318 | // continue if we are already beyond this layer | |
2319 | Double_t oldGlobR = TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]); | |
2320 | if(step>0 && oldGlobR > r) continue; // going outward | |
2321 | if(step<0 && oldGlobR < r) continue; // going inward | |
2322 | ||
2323 | Double_t phi,z; | |
2324 | if (!track->GetPhiZat(r,phi,z)) return kFALSE; | |
2325 | ||
2326 | Int_t idet=layer.FindDetectorIndex(phi,z); | |
2327 | ||
2328 | // check if we allow a prolongation without point for large-eta tracks | |
2329 | Int_t skip = CheckSkipLayer(track,ilayer,idet); | |
2330 | if (skip==2) { | |
2331 | modstatus = 4; // out in z | |
2332 | if(LocalModuleCoord(ilayer,idet,track,xloc,zloc)) { // local module coords | |
2333 | track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
2334 | } | |
2335 | // cross layer | |
2336 | // apply correction for material of the current layer | |
2337 | // add time if going outward | |
2338 | CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir); | |
2339 | continue; | |
2340 | } | |
2341 | ||
2342 | if (idet<0) return kFALSE; | |
2343 | ||
2344 | ||
2345 | const AliITSdetector &det=layer.GetDetector(idet); | |
2346 | // only for ITS-SA tracks refit | |
2347 | if (ilayer>1 && fTrackingPhase.Contains("RefitInward") && !(track->GetStatus()&AliESDtrack::kTPCin)) track->SetCheckInvariant(kFALSE); | |
2348 | // | |
2349 | if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE; | |
2350 | ||
2351 | track->SetDetectorIndex(idet); | |
2352 | if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords | |
2353 | ||
2354 | Double_t dz,zmin,zmax,dy,ymin,ymax; | |
2355 | ||
2356 | const AliITSRecPoint *clAcc=0; | |
2357 | Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(); | |
2358 | ||
2359 | Int_t idx=index[ilayer]; | |
2360 | if (idx>=0) { // cluster in this layer | |
2361 | modstatus = 6; // no refit | |
2362 | const AliITSRecPoint *cl=(AliITSRecPoint *)GetCluster(idx); | |
2363 | if (cl) { | |
2364 | if (idet != cl->GetDetectorIndex()) { | |
2365 | idet=cl->GetDetectorIndex(); | |
2366 | const AliITSdetector &detc=layer.GetDetector(idet); | |
2367 | if (!track->Propagate(detc.GetPhi(),detc.GetR())) return kFALSE; | |
2368 | track->SetDetectorIndex(idet); | |
2369 | if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords | |
2370 | } | |
2371 | Int_t cllayer = (idx & 0xf0000000) >> 28;; | |
2372 | Double_t chi2=GetPredictedChi2MI(track,cl,cllayer); | |
2373 | if (chi2<maxchi2) { | |
2374 | clAcc=cl; | |
2375 | maxchi2=chi2; | |
2376 | modstatus = 1; // found | |
2377 | } else { | |
2378 | return kFALSE; // | |
2379 | } | |
2380 | } | |
2381 | } else { // no cluster in this layer | |
2382 | if (skip==1) { | |
2383 | modstatus = 3; // skipped | |
2384 | // Plane Eff determination: | |
2385 | if (planeeff && ilayer==AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()) { | |
2386 | if (IsOKForPlaneEff(track,clusters,ilayer)) // only adequate track for plane eff. evaluation | |
2387 | UseTrackForPlaneEff(track,ilayer); | |
2388 | } | |
2389 | } else { | |
2390 | modstatus = 5; // no cls in road | |
2391 | // check dead | |
2392 | if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE; | |
2393 | dz = 0.5*(zmax-zmin); | |
2394 | dy = 0.5*(ymax-ymin); | |
2395 | Int_t dead = CheckDeadZone(track,ilayer,idet,dz,dy,kTRUE); | |
2396 | if (dead==1) modstatus = 7; // holes in z in SPD | |
2397 | if (dead==2 || dead==3 || dead==4) modstatus = 2; // dead from OCDB | |
2398 | } | |
2399 | } | |
2400 | ||
2401 | if (clAcc) { | |
2402 | if (!UpdateMI(track,clAcc,maxchi2,idx)) return kFALSE; | |
2403 | track->SetSampledEdx(clAcc->GetQ(),ilayer-2); | |
2404 | } | |
2405 | track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc); | |
2406 | ||
2407 | ||
2408 | if (extra) { // search for extra clusters in overlapped modules | |
2409 | AliITStrackV2 tmp(*track); | |
2410 | if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE; | |
2411 | layer.SelectClusters(zmin,zmax,ymin,ymax); | |
2412 | ||
2413 | const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1; | |
2414 | Int_t idetExtra=-1; | |
2415 | maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(); | |
2416 | Double_t tolerance=0.1; | |
2417 | while ((clExtra=layer.GetNextCluster(ci))!=0) { | |
2418 | // only clusters in another module! (overlaps) | |
2419 | idetExtra = clExtra->GetDetectorIndex(); | |
2420 | if (idet == idetExtra) continue; | |
2421 | ||
2422 | const AliITSdetector &detx=layer.GetDetector(idetExtra); | |
2423 | ||
2424 | if (!tmp.Propagate(detx.GetPhi(),detx.GetR()+clExtra->GetX())) continue; | |
2425 | if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue; | |
2426 | if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) continue; | |
2427 | if (!tmp.Propagate(detx.GetPhi(),detx.GetR())) continue; | |
2428 | ||
2429 | Double_t chi2=tmp.GetPredictedChi2(clExtra); | |
2430 | if (chi2<maxchi2) { maxchi2=chi2; cci=ci; } | |
2431 | } | |
2432 | if (cci>=0) { | |
2433 | track->SetExtraCluster(ilayer,(ilayer<<28)+cci); | |
2434 | track->SetExtraModule(ilayer,idetExtra); | |
2435 | } | |
2436 | } // end search for extra clusters in overlapped modules | |
2437 | ||
2438 | // Correct for material of the current layer | |
2439 | // cross material | |
2440 | // add time if going outward | |
2441 | if(!CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir)) return kFALSE; | |
2442 | track->SetCheckInvariant(kTRUE); | |
2443 | } // end loop on layers | |
2444 | ||
2445 | if (!track->PropagateTo(xx,0.,0.)) return kFALSE; | |
2446 | ||
2447 | return kTRUE; | |
2448 | } | |
2449 | //------------------------------------------------------------------------ | |
2450 | Double_t AliITStrackerMI::GetNormalizedChi2(AliITStrackMI * track, Int_t mode) | |
2451 | { | |
2452 | // | |
2453 | // calculate normalized chi2 | |
2454 | // return NormalizedChi2(track,0); | |
2455 | Float_t chi2 = 0; | |
2456 | Float_t sum=0; | |
2457 | Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack); | |
2458 | // track->fdEdxMismatch=0; | |
2459 | Float_t dedxmismatch =0; | |
2460 | Float_t *ny = GetNy(fCurrentEsdTrack), *nz = GetNz(fCurrentEsdTrack); | |
2461 | if (mode<100){ | |
2462 | for (Int_t i = 0;i<6;i++){ | |
2463 | if (track->GetClIndex(i)>=0){ | |
2464 | Float_t cerry, cerrz; | |
2465 | if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];} | |
2466 | else | |
2467 | { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);} | |
2468 | cerry*=cerry; | |
2469 | cerrz*=cerrz; | |
2470 | Float_t cchi2 = (track->GetDy(i)*track->GetDy(i)/cerry)+(track->GetDz(i)*track->GetDz(i)/cerrz); | |
2471 | if (i>1 && AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(i)) { | |
2472 | Float_t ratio = track->GetNormQ(i)/track->GetExpQ(); | |
2473 | if (ratio<0.5) { | |
2474 | cchi2+=(0.5-ratio)*10.; | |
2475 | //track->fdEdxMismatch+=(0.5-ratio)*10.; | |
2476 | dedxmismatch+=(0.5-ratio)*10.; | |
2477 | } | |
2478 | } | |
2479 | if (i<2 ||i>3){ | |
2480 | AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster( track->GetClIndex(i)); | |
2481 | Double_t delta = cl->GetNy()+cl->GetNz()-ny[i]-nz[i]; | |
2482 | if (delta>1) chi2 +=0.5*TMath::Min(delta/2,2.); | |
2483 | if (i<2) chi2+=2*cl->GetDeltaProbability(); | |
2484 | } | |
2485 | chi2+=cchi2; | |
2486 | sum++; | |
2487 | } | |
2488 | } | |
2489 | if (TMath::Abs(track->GetdEdxMismatch()-dedxmismatch)>0.0001){ | |
2490 | track->SetdEdxMismatch(dedxmismatch); | |
2491 | } | |
2492 | } | |
2493 | else{ | |
2494 | for (Int_t i = 0;i<4;i++){ | |
2495 | if (track->GetClIndex(i)>=0){ | |
2496 | Float_t cerry, cerrz; | |
2497 | if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];} | |
2498 | else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);} | |
2499 | cerry*=cerry; | |
2500 | cerrz*=cerrz; | |
2501 | chi2+= (track->GetDy(i)*track->GetDy(i)/cerry); | |
2502 | chi2+= (track->GetDz(i)*track->GetDz(i)/cerrz); | |
2503 | sum++; | |
2504 | } | |
2505 | } | |
2506 | for (Int_t i = 4;i<6;i++){ | |
2507 | if (track->GetClIndex(i)>=0){ | |
2508 | Float_t cerry, cerrz; | |
2509 | if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];} | |
2510 | else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);} | |
2511 | cerry*=cerry; | |
2512 | cerrz*=cerrz; | |
2513 | Float_t cerryb, cerrzb; | |
2514 | if (ny[i+6]>0) {cerryb = erry[i+6]; cerrzb=errz[i+6];} | |
2515 | else { cerryb= track->GetSigmaY(i+6); cerrzb = track->GetSigmaZ(i+6);} | |
2516 | cerryb*=cerryb; | |
2517 | cerrzb*=cerrzb; | |
2518 | chi2+= TMath::Min((track->GetDy(i+6)*track->GetDy(i+6)/cerryb),track->GetDy(i)*track->GetDy(i)/cerry); | |
2519 | chi2+= TMath::Min((track->GetDz(i+6)*track->GetDz(i+6)/cerrzb),track->GetDz(i)*track->GetDz(i)/cerrz); | |
2520 | sum++; | |
2521 | } | |
2522 | } | |
2523 | } | |
2524 | if (track->GetESDtrack()->GetTPCsignal()>85){ | |
2525 | Float_t ratio = track->GetdEdx()/track->GetESDtrack()->GetTPCsignal(); | |
2526 | if (ratio<0.5) { | |
2527 | chi2+=(0.5-ratio)*5.; | |
2528 | } | |
2529 | if (ratio>2){ | |
2530 | chi2+=(ratio-2.0)*3; | |
2531 | } | |
2532 | } | |
2533 | // | |
2534 | Double_t match = TMath::Sqrt(track->GetChi22()); | |
2535 | if (track->GetConstrain()) match/=track->GetNumberOfClusters(); | |
2536 | if (!track->GetConstrain()) { | |
2537 | if (track->GetNumberOfClusters()>2) { | |
2538 | match/=track->GetNumberOfClusters()-2.; | |
2539 | } else { | |
2540 | match=0; | |
2541 | } | |
2542 | } | |
2543 | if (match<0) match=0; | |
2544 | ||
2545 | // penalty factor for missing points (NDeadZone>0), but no penalty | |
2546 | // for layer with deadZoneProb close to 1 (either we wanted to skip layer | |
2547 | // or there is a dead from OCDB) | |
2548 | Float_t deadzonefactor = 0.; | |
2549 | if (track->GetNDeadZone()>0.) { | |
2550 | Int_t sumDeadZoneProbability=0; | |
2551 | for(Int_t ilay=0;ilay<6;ilay++) { | |
2552 | if(track->GetDeadZoneProbability(ilay)>0.) sumDeadZoneProbability++; | |
2553 | } | |
2554 | Int_t nDeadZoneWithProbNot1=(Int_t)(track->GetNDeadZone())-sumDeadZoneProbability; | |
2555 | if(nDeadZoneWithProbNot1>0) { | |
2556 | Float_t deadZoneProbability = track->GetNDeadZone()-(Float_t)sumDeadZoneProbability; | |
2557 | AliDebug(2,Form("nDeadZone %f sumDZProbability %f nDZWithProbNot1 %f deadZoneProb %f\n",track->GetNDeadZone(),sumDeadZoneProbability,nDeadZoneWithProbNot1,deadZoneProbability)); | |
2558 | deadZoneProbability /= (Float_t)nDeadZoneWithProbNot1; | |
2559 | Float_t one = 1.; | |
2560 | deadZoneProbability = TMath::Min(deadZoneProbability,one); | |
2561 | deadzonefactor = 3.*(1.1-deadZoneProbability); | |
2562 | } | |
2563 | } | |
2564 | ||
2565 | Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())* | |
2566 | (chi2)/TMath::Max(double(sum-track->GetNSkipped()), | |
2567 | 1./(1.+track->GetNSkipped())); | |
2568 | AliDebug(2,Form("match %f deadzonefactor %f chi2 %f sum %f skipped\n",match,deadzonefactor,chi2,sum,track->GetNSkipped())); | |
2569 | AliDebug(2,Form("NormChi2 %f cls %d\n",normchi2,track->GetNumberOfClusters())); | |
2570 | return normchi2; | |
2571 | } | |
2572 | //------------------------------------------------------------------------ | |
2573 | Double_t AliITStrackerMI::GetMatchingChi2(const AliITStrackMI * track1,const AliITStrackMI * track2) | |
2574 | { | |
2575 | // | |
2576 | // return matching chi2 between two tracks | |
2577 | Double_t largeChi2=1000.; | |
2578 | ||
2579 | AliITStrackMI track3(*track2); | |
2580 | if (!track3.Propagate(track1->GetAlpha(),track1->GetX())) return largeChi2; | |
2581 | TMatrixD vec(5,1); | |
2582 | vec(0,0)=track1->GetY() - track3.GetY(); | |
2583 | vec(1,0)=track1->GetZ() - track3.GetZ(); | |
2584 | vec(2,0)=track1->GetSnp() - track3.GetSnp(); | |
2585 | vec(3,0)=track1->GetTgl() - track3.GetTgl(); | |
2586 | vec(4,0)=track1->GetSigned1Pt() - track3.GetSigned1Pt(); | |
2587 | // | |
2588 | TMatrixD cov(5,5); | |
2589 | cov(0,0) = track1->GetSigmaY2()+track3.GetSigmaY2(); | |
2590 | cov(1,1) = track1->GetSigmaZ2()+track3.GetSigmaZ2(); | |
2591 | cov(2,2) = track1->GetSigmaSnp2()+track3.GetSigmaSnp2(); | |
2592 | cov(3,3) = track1->GetSigmaTgl2()+track3.GetSigmaTgl2(); | |
2593 | cov(4,4) = track1->GetSigma1Pt2()+track3.GetSigma1Pt2(); | |
2594 | ||
2595 | cov(0,1)=cov(1,0) = track1->GetSigmaZY()+track3.GetSigmaZY(); | |
2596 | cov(0,2)=cov(2,0) = track1->GetSigmaSnpY()+track3.GetSigmaSnpY(); | |
2597 | cov(0,3)=cov(3,0) = track1->GetSigmaTglY()+track3.GetSigmaTglY(); | |
2598 | cov(0,4)=cov(4,0) = track1->GetSigma1PtY()+track3.GetSigma1PtY(); | |
2599 | // | |
2600 | cov(1,2)=cov(2,1) = track1->GetSigmaSnpZ()+track3.GetSigmaSnpZ(); | |
2601 | cov(1,3)=cov(3,1) = track1->GetSigmaTglZ()+track3.GetSigmaTglZ(); | |
2602 | cov(1,4)=cov(4,1) = track1->GetSigma1PtZ()+track3.GetSigma1PtZ(); | |
2603 | // | |
2604 | cov(2,3)=cov(3,2) = track1->GetSigmaTglSnp()+track3.GetSigmaTglSnp(); | |
2605 | cov(2,4)=cov(4,2) = track1->GetSigma1PtSnp()+track3.GetSigma1PtSnp(); | |
2606 | // | |
2607 | cov(3,4)=cov(4,3) = track1->GetSigma1PtTgl()+track3.GetSigma1PtTgl(); | |
2608 | ||
2609 | cov.Invert(); | |
2610 | TMatrixD vec2(cov,TMatrixD::kMult,vec); | |
2611 | TMatrixD chi2(vec2,TMatrixD::kTransposeMult,vec); | |
2612 | return chi2(0,0); | |
2613 | } | |
2614 | //------------------------------------------------------------------------ | |
2615 | Double_t AliITStrackerMI::GetSPDDeadZoneProbability(Double_t zpos, Double_t zerr) const | |
2616 | { | |
2617 | // | |
2618 | // return probability that given point (characterized by z position and error) | |
2619 | // is in SPD dead zone | |
2620 | // This method assumes that fSPDdetzcentre is ordered from -z to +z | |
2621 | // | |
2622 | Double_t probability = 0.; | |
2623 | Double_t nearestz = 0.,distz=0.; | |
2624 | Int_t nearestzone = -1; | |
2625 | Double_t mindistz = 1000.; | |
2626 | ||
2627 | // find closest dead zone | |
2628 | for (Int_t i=0; i<3; i++) { | |
2629 | distz=TMath::Abs(zpos-0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1])); | |
2630 | if (distz<mindistz) { | |
2631 | nearestzone=i; | |
2632 | nearestz=0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1]); | |
2633 | mindistz=distz; | |
2634 | } | |
2635 | } | |
2636 | ||
2637 | // too far from dead zone | |
2638 | if (TMath::Abs(zpos-nearestz)>0.25+3.*zerr) return probability; | |
2639 | ||
2640 | ||
2641 | Double_t zmin, zmax; | |
2642 | if (nearestzone==0) { // dead zone at z = -7 | |
2643 | zmin = fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
2644 | zmax = fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
2645 | } else if (nearestzone==1) { // dead zone at z = 0 | |
2646 | zmin = fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
2647 | zmax = fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
2648 | } else if (nearestzone==2) { // dead zone at z = +7 | |
2649 | zmin = fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
2650 | zmax = fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength(); | |
2651 | } else { | |
2652 | zmin = 0.; | |
2653 | zmax = 0.; | |
2654 | } | |
2655 | // probability that the true z is in the range [zmin,zmax] (i.e. inside | |
2656 | // dead zone) | |
2657 | probability = 0.5*( AliMathBase::ErfFast((zpos-zmin)/zerr/TMath::Sqrt(2.)) - | |
2658 | AliMathBase::ErfFast((zpos-zmax)/zerr/TMath::Sqrt(2.)) ); | |
2659 | AliDebug(2,Form("zpos %f +- %f nearestzone %d zmin zmax %f %f prob %f\n",zpos,zerr,nearestzone,zmin,zmax,probability)); | |
2660 | return probability; | |
2661 | } | |
2662 | //------------------------------------------------------------------------ | |
2663 | Double_t AliITStrackerMI::GetTruncatedChi2(const AliITStrackMI * track, Float_t fac) | |
2664 | { | |
2665 | // | |
2666 | // calculate normalized chi2 | |
2667 | Float_t chi2[6]; | |
2668 | Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack); | |
2669 | Float_t ncl = 0; | |
2670 | for (Int_t i = 0;i<6;i++){ | |
2671 | if (TMath::Abs(track->GetDy(i))>0){ | |
2672 | chi2[i]= (track->GetDy(i)/erry[i])*(track->GetDy(i)/erry[i]); | |
2673 | chi2[i]+= (track->GetDz(i)/errz[i])*(track->GetDz(i)/errz[i]); | |
2674 | ncl++; | |
2675 | } | |
2676 | else{chi2[i]=10000;} | |
2677 | } | |
2678 | Int_t index[6]; | |
2679 | TMath::Sort(6,chi2,index,kFALSE); | |
2680 | Float_t max = float(ncl)*fac-1.; | |
2681 | Float_t sumchi=0, sumweight=0; | |
2682 | for (Int_t i=0;i<max+1;i++){ | |
2683 | Float_t weight = (i<max)?1.:(max+1.-i); | |
2684 | sumchi+=weight*chi2[index[i]]; | |
2685 | sumweight+=weight; | |
2686 | } | |
2687 | Double_t normchi2 = sumchi/sumweight; | |
2688 | return normchi2; | |
2689 | } | |
2690 | //------------------------------------------------------------------------ | |
2691 | Double_t AliITStrackerMI::GetInterpolatedChi2(const AliITStrackMI * forwardtrack,const AliITStrackMI * backtrack) | |
2692 | { | |
2693 | // | |
2694 | // calculate normalized chi2 | |
2695 | // if (forwardtrack->fNUsed>0.3*float(forwardtrack->GetNumberOfClusters())) return 10000; | |
2696 | Int_t npoints = 0; | |
2697 | Double_t res =0; | |
2698 | for (Int_t i=0;i<6;i++){ | |
2699 | if ( (backtrack->GetSigmaY(i)<0.000000001) || (forwardtrack->GetSigmaY(i)<0.000000001)) continue; | |
2700 | Double_t sy1 = forwardtrack->GetSigmaY(i); | |
2701 | Double_t sz1 = forwardtrack->GetSigmaZ(i); | |
2702 | Double_t sy2 = backtrack->GetSigmaY(i); | |
2703 | Double_t sz2 = backtrack->GetSigmaZ(i); | |
2704 | if (i<2){ sy2=1000.;sz2=1000;} | |
2705 | // | |
2706 | Double_t dy0 = (forwardtrack->GetDy(i)/(sy1*sy1) +backtrack->GetDy(i)/(sy2*sy2))/(1./(sy1*sy1)+1./(sy2*sy2)); | |
2707 | Double_t dz0 = (forwardtrack->GetDz(i)/(sz1*sz1) +backtrack->GetDz(i)/(sz2*sz2))/(1./(sz1*sz1)+1./(sz2*sz2)); | |
2708 | // | |
2709 | Double_t nz0 = dz0*TMath::Sqrt((1./(sz1*sz1)+1./(sz2*sz2))); | |
2710 | Double_t ny0 = dy0*TMath::Sqrt((1./(sy1*sy1)+1./(sy2*sy2))); | |
2711 | // | |
2712 | res+= nz0*nz0+ny0*ny0; | |
2713 | npoints++; | |
2714 | } | |
2715 | if (npoints>1) return | |
2716 | TMath::Max(0.3*forwardtrack->OneOverPt()-0.5,0.)+ | |
2717 | //2*forwardtrack->fNUsed+ | |
2718 | res/TMath::Max(double(npoints-forwardtrack->GetNSkipped()), | |
2719 | 1./(1.+forwardtrack->GetNSkipped())); | |
2720 | return 1000; | |
2721 | } | |
2722 | //------------------------------------------------------------------------ | |
2723 | Float_t *AliITStrackerMI::GetWeight(Int_t index) { | |
2724 | //-------------------------------------------------------------------- | |
2725 | // Return pointer to a given cluster | |
2726 | //-------------------------------------------------------------------- | |
2727 | Int_t l=(index & 0xf0000000) >> 28; | |
2728 | Int_t c=(index & 0x0fffffff) >> 00; | |
2729 | return fgLayers[l].GetWeight(c); | |
2730 | } | |
2731 | //------------------------------------------------------------------------ | |
2732 | void AliITStrackerMI::RegisterClusterTracks(const AliITStrackMI* track,Int_t id) | |
2733 | { | |
2734 | //--------------------------------------------- | |
2735 | // register track to the list | |
2736 | // | |
2737 | if (track->GetESDtrack()->GetKinkIndex(0)!=0) return; //don't register kink tracks | |
2738 | // | |
2739 | // | |
2740 | for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){ | |
2741 | Int_t index = track->GetClusterIndex(icluster); | |
2742 | Int_t l=(index & 0xf0000000) >> 28; | |
2743 | Int_t c=(index & 0x0fffffff) >> 00; | |
2744 | if (c>fgLayers[l].GetNumberOfClusters()) continue; | |
2745 | for (Int_t itrack=0;itrack<4;itrack++){ | |
2746 | if (fgLayers[l].GetClusterTracks(itrack,c)<0){ | |
2747 | fgLayers[l].SetClusterTracks(itrack,c,id); | |
2748 | break; | |
2749 | } | |
2750 | } | |
2751 | } | |
2752 | } | |
2753 | //------------------------------------------------------------------------ | |
2754 | void AliITStrackerMI::UnRegisterClusterTracks(const AliITStrackMI* track, Int_t id) | |
2755 | { | |
2756 | //--------------------------------------------- | |
2757 | // unregister track from the list | |
2758 | for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){ | |
2759 | Int_t index = track->GetClusterIndex(icluster); | |
2760 | Int_t l=(index & 0xf0000000) >> 28; | |
2761 | Int_t c=(index & 0x0fffffff) >> 00; | |
2762 | if (c>fgLayers[l].GetNumberOfClusters()) continue; | |
2763 | for (Int_t itrack=0;itrack<4;itrack++){ | |
2764 | if (fgLayers[l].GetClusterTracks(itrack,c)==id){ | |
2765 | fgLayers[l].SetClusterTracks(itrack,c,-1); | |
2766 | } | |
2767 | } | |
2768 | } | |
2769 | } | |
2770 | //------------------------------------------------------------------------ | |
2771 | Float_t AliITStrackerMI::GetNumberOfSharedClusters(AliITStrackMI* track,Int_t id, Int_t list[6], AliITSRecPoint *clist[6]) | |
2772 | { | |
2773 | //------------------------------------------------------------- | |
2774 | //get number of shared clusters | |
2775 | //------------------------------------------------------------- | |
2776 | Float_t shared=0; | |
2777 | for (Int_t i=0;i<6;i++) { list[i]=-1, clist[i]=0;} | |
2778 | // mean number of clusters | |
2779 | Float_t *ny = GetNy(id), *nz = GetNz(id); | |
2780 | ||
2781 | ||
2782 | for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){ | |
2783 | Int_t index = track->GetClusterIndex(icluster); | |
2784 | Int_t l=(index & 0xf0000000) >> 28; | |
2785 | Int_t c=(index & 0x0fffffff) >> 00; | |
2786 | if (c>fgLayers[l].GetNumberOfClusters()) continue; | |
2787 | if (ny[l]<1.e-13){ | |
2788 | printf("problem\n"); | |
2789 | } | |
2790 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index); | |
2791 | Float_t weight=1; | |
2792 | // | |
2793 | Float_t deltan = 0; | |
2794 | if (l>3&&cl->GetNy()+cl->GetNz()>6) continue; | |
2795 | if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l)) | |
2796 | if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue; | |
2797 | if (l<2 || l>3){ | |
2798 | deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]); | |
2799 | } | |
2800 | else{ | |
2801 | deltan = (cl->GetNz()-nz[l]); | |
2802 | } | |
2803 | if (deltan>2.0) continue; // extended - highly probable shared cluster | |
2804 | weight = 2./TMath::Max(3.+deltan,2.); | |
2805 | // | |
2806 | for (Int_t itrack=0;itrack<4;itrack++){ | |
2807 | if (fgLayers[l].GetClusterTracks(itrack,c)>=0 && fgLayers[l].GetClusterTracks(itrack,c)!=id){ | |
2808 | list[l]=index; | |
2809 | clist[l] = (AliITSRecPoint*)GetCluster(index); | |
2810 | shared+=weight; | |
2811 | break; | |
2812 | } | |
2813 | } | |
2814 | } | |
2815 | track->SetNUsed(shared); | |
2816 | return shared; | |
2817 | } | |
2818 | //------------------------------------------------------------------------ | |
2819 | Int_t AliITStrackerMI::GetOverlapTrack(const AliITStrackMI *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6],Int_t overlist[6]) | |
2820 | { | |
2821 | // | |
2822 | // find first shared track | |
2823 | // | |
2824 | // mean number of clusters | |
2825 | Float_t *ny = GetNy(trackID), *nz = GetNz(trackID); | |
2826 | // | |
2827 | for (Int_t i=0;i<6;i++) overlist[i]=-1; | |
2828 | Int_t sharedtrack=100000; | |
2829 | Int_t tracks[24],trackindex=0; | |
2830 | for (Int_t i=0;i<24;i++) {tracks[i]=-1;} | |
2831 | // | |
2832 | for (Int_t icluster=0;icluster<6;icluster++){ | |
2833 | if (clusterlist[icluster]<0) continue; | |
2834 | Int_t index = clusterlist[icluster]; | |
2835 | Int_t l=(index & 0xf0000000) >> 28; | |
2836 | Int_t c=(index & 0x0fffffff) >> 00; | |
2837 | if (ny[l]<1.e-13){ | |
2838 | printf("problem\n"); | |
2839 | } | |
2840 | if (c>fgLayers[l].GetNumberOfClusters()) continue; | |
2841 | //if (l>3) continue; | |
2842 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index); | |
2843 | // | |
2844 | Float_t deltan = 0; | |
2845 | if (l>3&&cl->GetNy()+cl->GetNz()>6) continue; | |
2846 | if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l)) | |
2847 | if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue; | |
2848 | if (l<2 || l>3){ | |
2849 | deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]); | |
2850 | } | |
2851 | else{ | |
2852 | deltan = (cl->GetNz()-nz[l]); | |
2853 | } | |
2854 | if (deltan>2.0) continue; // extended - highly probable shared cluster | |
2855 | // | |
2856 | for (Int_t itrack=3;itrack>=0;itrack--){ | |
2857 | if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue; | |
2858 | if (fgLayers[l].GetClusterTracks(itrack,c)!=trackID){ | |
2859 | tracks[trackindex] = fgLayers[l].GetClusterTracks(itrack,c); | |
2860 | trackindex++; | |
2861 | } | |
2862 | } | |
2863 | } | |
2864 | if (trackindex==0) return -1; | |
2865 | if (trackindex==1){ | |
2866 | sharedtrack = tracks[0]; | |
2867 | }else{ | |
2868 | if (trackindex==2) sharedtrack =TMath::Min(tracks[0],tracks[1]); | |
2869 | else{ | |
2870 | // | |
2871 | Int_t tracks2[24], cluster[24]; | |
2872 | for (Int_t i=0;i<trackindex;i++){ tracks2[i]=-1; cluster[i]=0;} | |
2873 | Int_t index =0; | |
2874 | // | |
2875 | for (Int_t i=0;i<trackindex;i++){ | |
2876 | if (tracks[i]<0) continue; | |
2877 | tracks2[index] = tracks[i]; | |
2878 | cluster[index]++; | |
2879 | for (Int_t j=i+1;j<trackindex;j++){ | |
2880 | if (tracks[j]<0) continue; | |
2881 | if (tracks[j]==tracks[i]){ | |
2882 | cluster[index]++; | |
2883 | tracks[j]=-1; | |
2884 | } | |
2885 | } | |
2886 | index++; | |
2887 | } | |
2888 | Int_t max=0; | |
2889 | for (Int_t i=0;i<index;i++){ | |
2890 | if (cluster[index]>max) { | |
2891 | sharedtrack=tracks2[index]; | |
2892 | max=cluster[index]; | |
2893 | } | |
2894 | } | |
2895 | } | |
2896 | } | |
2897 | ||
2898 | if (sharedtrack>=100000) return -1; | |
2899 | // | |
2900 | // make list of overlaps | |
2901 | shared =0; | |
2902 | for (Int_t icluster=0;icluster<6;icluster++){ | |
2903 | if (clusterlist[icluster]<0) continue; | |
2904 | Int_t index = clusterlist[icluster]; | |
2905 | Int_t l=(index & 0xf0000000) >> 28; | |
2906 | Int_t c=(index & 0x0fffffff) >> 00; | |
2907 | if (c>fgLayers[l].GetNumberOfClusters()) continue; | |
2908 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index); | |
2909 | if (l==0 || l==1){ | |
2910 | if (cl->GetNy()>2) continue; | |
2911 | if (cl->GetNz()>2) continue; | |
2912 | } | |
2913 | if (l==4 || l==5){ | |
2914 | if (cl->GetNy()>3) continue; | |
2915 | if (cl->GetNz()>3) continue; | |
2916 | } | |
2917 | // | |
2918 | for (Int_t itrack=3;itrack>=0;itrack--){ | |
2919 | if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue; | |
2920 | if (fgLayers[l].GetClusterTracks(itrack,c)==sharedtrack){ | |
2921 | overlist[l]=index; | |
2922 | shared++; | |
2923 | } | |
2924 | } | |
2925 | } | |
2926 | return sharedtrack; | |
2927 | } | |
2928 | //------------------------------------------------------------------------ | |
2929 | AliITStrackMI * AliITStrackerMI::GetBest2Tracks(Int_t trackID1, Int_t trackID2, Float_t th0, Float_t th1){ | |
2930 | // | |
2931 | // try to find track hypothesys without conflicts | |
2932 | // with minimal chi2; | |
2933 | TClonesArray *arr1 = (TClonesArray*)fTrackHypothesys.At(trackID1); | |
2934 | Int_t entries1 = arr1->GetEntriesFast(); | |
2935 | TClonesArray *arr2 = (TClonesArray*)fTrackHypothesys.At(trackID2); | |
2936 | if (!arr2) return (AliITStrackMI*) arr1->UncheckedAt(0); | |
2937 | Int_t entries2 = arr2->GetEntriesFast(); | |
2938 | if (entries2<=0) return (AliITStrackMI*) arr1->UncheckedAt(0); | |
2939 | // | |
2940 | AliITStrackMI * track10=(AliITStrackMI*) arr1->UncheckedAt(0); | |
2941 | AliITStrackMI * track20=(AliITStrackMI*) arr2->UncheckedAt(0); | |
2942 | if (track10->Pt()>0.5+track20->Pt()) return track10; | |
2943 | ||
2944 | for (Int_t itrack=0;itrack<entries1;itrack++){ | |
2945 | AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack); | |
2946 | UnRegisterClusterTracks(track,trackID1); | |
2947 | } | |
2948 | // | |
2949 | for (Int_t itrack=0;itrack<entries2;itrack++){ | |
2950 | AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack); | |
2951 | UnRegisterClusterTracks(track,trackID2); | |
2952 | } | |
2953 | Int_t index1=0; | |
2954 | Int_t index2=0; | |
2955 | Float_t maxconflicts=6; | |
2956 | Double_t maxchi2 =1000.; | |
2957 | // | |
2958 | // get weight of hypothesys - using best hypothesy | |
2959 | Double_t w1,w2; | |
2960 | ||
2961 | Int_t list1[6],list2[6]; | |
2962 | AliITSRecPoint *clist1[6], *clist2[6] ; | |
2963 | RegisterClusterTracks(track10,trackID1); | |
2964 | RegisterClusterTracks(track20,trackID2); | |
2965 | Float_t conflict1 = GetNumberOfSharedClusters(track10,trackID1,list1,clist1); | |
2966 | Float_t conflict2 = GetNumberOfSharedClusters(track20,trackID2,list2,clist2); | |
2967 | UnRegisterClusterTracks(track10,trackID1); | |
2968 | UnRegisterClusterTracks(track20,trackID2); | |
2969 | // | |
2970 | // normalized chi2 | |
2971 | Float_t chi21 =0,chi22=0,ncl1=0,ncl2=0; | |
2972 | Float_t nerry[6],nerrz[6]; | |
2973 | Float_t *erry1=GetErrY(trackID1),*errz1 = GetErrZ(trackID1); | |
2974 | Float_t *erry2=GetErrY(trackID2),*errz2 = GetErrZ(trackID2); | |
2975 | for (Int_t i=0;i<6;i++){ | |
2976 | if ( (erry1[i]>0) && (erry2[i]>0)) { | |
2977 | nerry[i] = TMath::Min(erry1[i],erry2[i]); | |
2978 | nerrz[i] = TMath::Min(errz1[i],errz2[i]); | |
2979 | }else{ | |
2980 | nerry[i] = TMath::Max(erry1[i],erry2[i]); | |
2981 | nerrz[i] = TMath::Max(errz1[i],errz2[i]); | |
2982 | } | |
2983 | if (TMath::Abs(track10->GetDy(i))>0.000000000000001){ | |
2984 | chi21 += track10->GetDy(i)*track10->GetDy(i)/(nerry[i]*nerry[i]); | |
2985 | chi21 += track10->GetDz(i)*track10->GetDz(i)/(nerrz[i]*nerrz[i]); | |
2986 | ncl1++; | |
2987 | } | |
2988 | if (TMath::Abs(track20->GetDy(i))>0.000000000000001){ | |
2989 | chi22 += track20->GetDy(i)*track20->GetDy(i)/(nerry[i]*nerry[i]); | |
2990 | chi22 += track20->GetDz(i)*track20->GetDz(i)/(nerrz[i]*nerrz[i]); | |
2991 | ncl2++; | |
2992 | } | |
2993 | } | |
2994 | chi21/=ncl1; | |
2995 | chi22/=ncl2; | |
2996 | // | |
2997 | // | |
2998 | Float_t d1 = TMath::Sqrt(track10->GetD(0)*track10->GetD(0)+track10->GetD(1)*track10->GetD(1))+0.1; | |
2999 | Float_t d2 = TMath::Sqrt(track20->GetD(0)*track20->GetD(0)+track20->GetD(1)*track20->GetD(1))+0.1; | |
3000 | Float_t s1 = TMath::Sqrt(track10->GetSigmaY2()*track10->GetSigmaZ2()); | |
3001 | Float_t s2 = TMath::Sqrt(track20->GetSigmaY2()*track20->GetSigmaZ2()); | |
3002 | // | |
3003 | w1 = (d2/(d1+d2)+ 2*s2/(s1+s2)+ | |
3004 | +s2/(s1+s2)*0.5*(chi22+2.)/(chi21+chi22+4.) | |
3005 | +1.*track10->Pt()/(track10->Pt()+track20->Pt()) | |
3006 | ); | |
3007 | w2 = (d1/(d1+d2)+ 2*s1/(s1+s2)+ | |
3008 | s1/(s1+s2)*0.5*(chi21+2.)/(chi21+chi22+4.) | |
3009 | +1.*track20->Pt()/(track10->Pt()+track20->Pt()) | |
3010 | ); | |
3011 | ||
3012 | Double_t sumw = w1+w2; | |
3013 | w1/=sumw; | |
3014 | w2/=sumw; | |
3015 | if (w1<w2*0.5) { | |
3016 | w1 = (d2+0.5)/(d1+d2+1.); | |
3017 | w2 = (d1+0.5)/(d1+d2+1.); | |
3018 | } | |
3019 | // Float_t maxmax = w1*track10->fChi2MIP[0]+w2*track20->fChi2MIP[0]+w1*conflict1+w2*conflict2+1.; | |
3020 | //Float_t maxconflicts0 = w1*conflict1+w2*conflict2; | |
3021 | // | |
3022 | // get pair of "best" hypothesys | |
3023 | // | |
3024 | Float_t * ny1 = GetNy(trackID1), * nz1 = GetNz(trackID1); | |
3025 | Float_t * ny2 = GetNy(trackID2), * nz2 = GetNz(trackID2); | |
3026 | ||
3027 | for (Int_t itrack1=0;itrack1<entries1;itrack1++){ | |
3028 | AliITStrackMI * track1=(AliITStrackMI*) arr1->UncheckedAt(itrack1); | |
3029 | //if (track1->fFakeRatio>0) continue; | |
3030 | RegisterClusterTracks(track1,trackID1); | |
3031 | for (Int_t itrack2=0;itrack2<entries2;itrack2++){ | |
3032 | AliITStrackMI * track2=(AliITStrackMI*) arr2->UncheckedAt(itrack2); | |
3033 | ||
3034 | // Float_t current = w1*track1->fChi2MIP[0]+w2*track2->fChi2MIP[0]; | |
3035 | //if (track2->fFakeRatio>0) continue; | |
3036 | Float_t nskipped=0; | |
3037 | RegisterClusterTracks(track2,trackID2); | |
3038 | Float_t cconflict1 = GetNumberOfSharedClusters(track1,trackID1,list1,clist1); | |
3039 | Float_t cconflict2 = GetNumberOfSharedClusters(track2,trackID2,list2,clist2); | |
3040 | UnRegisterClusterTracks(track2,trackID2); | |
3041 | // | |
3042 | if (track1->GetConstrain()) nskipped+=w1*track1->GetNSkipped(); | |
3043 | if (track2->GetConstrain()) nskipped+=w2*track2->GetNSkipped(); | |
3044 | if (nskipped>0.5) continue; | |
3045 | // | |
3046 | //if ( w1*conflict1+w2*conflict2>maxconflicts0) continue; | |
3047 | if (conflict1+1<cconflict1) continue; | |
3048 | if (conflict2+1<cconflict2) continue; | |
3049 | Float_t conflict=0; | |
3050 | Float_t sumchi2=0; | |
3051 | Float_t sum=0; | |
3052 | for (Int_t i=0;i<6;i++){ | |
3053 | // | |
3054 | Float_t c1 =0.; // conflict coeficients | |
3055 | Float_t c2 =0.; | |
3056 | if (clist1[i]&&clist2[i]){ | |
3057 | Float_t deltan = 0; | |
3058 | if (i<2 || i>3){ | |
3059 | deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-TMath::Max(ny1[i],ny2[i])-TMath::Max(nz1[i],nz2[i])); | |
3060 | } | |
3061 | else{ | |
3062 | deltan = (clist1[i]->GetNz()-TMath::Max(nz1[i],nz2[i])); | |
3063 | } | |
3064 | c1 = 2./TMath::Max(3.+deltan,2.); | |
3065 | c2 = 2./TMath::Max(3.+deltan,2.); | |
3066 | } | |
3067 | else{ | |
3068 | if (clist1[i]){ | |
3069 | Float_t deltan = 0; | |
3070 | if (i<2 || i>3){ | |
3071 | deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-ny1[i]-nz1[i]); | |
3072 | } | |
3073 | else{ | |
3074 | deltan = (clist1[i]->GetNz()-nz1[i]); | |
3075 | } | |
3076 | c1 = 2./TMath::Max(3.+deltan,2.); | |
3077 | c2 = 0; | |
3078 | } | |
3079 | ||
3080 | if (clist2[i]){ | |
3081 | Float_t deltan = 0; | |
3082 | if (i<2 || i>3){ | |
3083 | deltan = (clist2[i]->GetNy()+clist2[i]->GetNz()-ny2[i]-nz2[i]); | |
3084 | } | |
3085 | else{ | |
3086 | deltan = (clist2[i]->GetNz()-nz2[i]); | |
3087 | } | |
3088 | c2 = 2./TMath::Max(3.+deltan,2.); | |
3089 | c1 = 0; | |
3090 | } | |
3091 | } | |
3092 | // | |
3093 | chi21=0;chi22=0; | |
3094 | if (TMath::Abs(track1->GetDy(i))>0.) { | |
3095 | chi21 = (track1->GetDy(i)/track1->GetSigmaY(i))*(track1->GetDy(i)/track1->GetSigmaY(i))+ | |
3096 | (track1->GetDz(i)/track1->GetSigmaZ(i))*(track1->GetDz(i)/track1->GetSigmaZ(i)); | |
3097 | //chi21 = (track1->fDy[i]*track1->fDy[i])/(nerry[i]*nerry[i])+ | |
3098 | // (track1->GetDz(i)*track1->GetDz(i))/(nerrz[i]*nerrz[i]); | |
3099 | }else{ | |
3100 | if (TMath::Abs(track1->GetSigmaY(i)>0.)) c1=1; | |
3101 | } | |
3102 | // | |
3103 | if (TMath::Abs(track2->GetDy(i))>0.) { | |
3104 | chi22 = (track2->GetDy(i)/track2->GetSigmaY(i))*(track2->GetDy(i)/track2->GetSigmaY(i))+ | |
3105 | (track2->GetDz(i)/track2->GetSigmaZ(i))*(track2->GetDz(i)/track2->GetSigmaZ(i)); | |
3106 | //chi22 = (track2->fDy[i]*track2->fDy[i])/(nerry[i]*nerry[i])+ | |
3107 | // (track2->fDz[i]*track2->fDz[i])/(nerrz[i]*nerrz[i]); | |
3108 | } | |
3109 | else{ | |
3110 | if (TMath::Abs(track2->GetSigmaY(i)>0.)) c2=1; | |
3111 | } | |
3112 | sumchi2+=w1*(1.+c1)*(1+c1)*(chi21+c1)+w2*(1.+c2)*(1+c2)*(chi22+c2); | |
3113 | if (chi21>0) sum+=w1; | |
3114 | if (chi22>0) sum+=w2; | |
3115 | conflict+=(c1+c2); | |
3116 | } | |
3117 | Double_t norm = sum-w1*track1->GetNSkipped()-w2*track2->GetNSkipped(); | |
3118 | if (norm<0) norm =1/(w1*track1->GetNSkipped()+w2*track2->GetNSkipped()); | |
3119 | Double_t normchi2 = 2*conflict+sumchi2/sum; | |
3120 | if ( normchi2 <maxchi2 ){ | |
3121 | index1 = itrack1; | |
3122 | index2 = itrack2; | |
3123 | maxconflicts = conflict; | |
3124 | maxchi2 = normchi2; | |
3125 | } | |
3126 | } | |
3127 | UnRegisterClusterTracks(track1,trackID1); | |
3128 | } | |
3129 | // | |
3130 | // if (maxconflicts<4 && maxchi2<th0){ | |
3131 | if (maxchi2<th0*2.){ | |
3132 | Float_t orig = track10->GetFakeRatio()*track10->GetNumberOfClusters(); | |
3133 | AliITStrackMI* track1=(AliITStrackMI*) arr1->UncheckedAt(index1); | |
3134 | track1->SetChi2MIP(5,maxconflicts); | |
3135 | track1->SetChi2MIP(6,maxchi2); | |
3136 | track1->SetChi2MIP(7,0.01+orig-(track1->GetFakeRatio()*track1->GetNumberOfClusters())); | |
3137 | // track1->UpdateESDtrack(AliESDtrack::kITSin); | |
3138 | track1->SetChi2MIP(8,index1); | |
3139 | fBestTrackIndex[trackID1] =index1; | |
3140 | UpdateESDtrack(track1, AliESDtrack::kITSin); | |
3141 | } | |
3142 | else if (track10->GetChi2MIP(0)<th1){ | |
3143 | track10->SetChi2MIP(5,maxconflicts); | |
3144 | track10->SetChi2MIP(6,maxchi2); | |
3145 | // track10->UpdateESDtrack(AliESDtrack::kITSin); | |
3146 | UpdateESDtrack(track10,AliESDtrack::kITSin); | |
3147 | } | |
3148 | ||
3149 | for (Int_t itrack=0;itrack<entries1;itrack++){ | |
3150 | AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack); | |
3151 | UnRegisterClusterTracks(track,trackID1); | |
3152 | } | |
3153 | // | |
3154 | for (Int_t itrack=0;itrack<entries2;itrack++){ | |
3155 | AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack); | |
3156 | UnRegisterClusterTracks(track,trackID2); | |
3157 | } | |
3158 | ||
3159 | if (track10->GetConstrain()&&track10->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) | |
3160 | &&track10->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
3161 | // if (track10->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) | |
3162 | // &&track10->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
3163 | RegisterClusterTracks(track10,trackID1); | |
3164 | } | |
3165 | if (track20->GetConstrain()&&track20->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) | |
3166 | &&track20->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
3167 | //if (track20->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) | |
3168 | // &&track20->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
3169 | RegisterClusterTracks(track20,trackID2); | |
3170 | } | |
3171 | return track10; | |
3172 | ||
3173 | } | |
3174 | //------------------------------------------------------------------------ | |
3175 | void AliITStrackerMI::UseClusters(const AliKalmanTrack *t, Int_t from) const { | |
3176 | //-------------------------------------------------------------------- | |
3177 | // This function marks clusters assigned to the track | |
3178 | //-------------------------------------------------------------------- | |
3179 | AliTracker::UseClusters(t,from); | |
3180 | ||
3181 | AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(0)); | |
3182 | //if (c->GetQ()>2) c->Use(); | |
3183 | if (c->GetSigmaZ2()>0.1) c->Use(); | |
3184 | c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(1)); | |
3185 | //if (c->GetQ()>2) c->Use(); | |
3186 | if (c->GetSigmaZ2()>0.1) c->Use(); | |
3187 | ||
3188 | } | |
3189 | //------------------------------------------------------------------------ | |
3190 | void AliITStrackerMI::AddTrackHypothesys(AliITStrackMI * track, Int_t esdindex) | |
3191 | { | |
3192 | //------------------------------------------------------------------ | |
3193 | // add track to the list of hypothesys | |
3194 | //------------------------------------------------------------------ | |
3195 | ||
3196 | if (esdindex>=fTrackHypothesys.GetEntriesFast()) | |
3197 | fTrackHypothesys.Expand(TMath::Max(fTrackHypothesys.GetSize(),esdindex*2+10)); | |
3198 | // | |
3199 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex); | |
3200 | if (!array) { | |
3201 | array = new TObjArray(10); | |
3202 | fTrackHypothesys.AddAt(array,esdindex); | |
3203 | } | |
3204 | array->AddLast(track); | |
3205 | } | |
3206 | //------------------------------------------------------------------------ | |
3207 | void AliITStrackerMI::SortTrackHypothesys(Int_t esdindex, Int_t maxcut, Int_t mode) | |
3208 | { | |
3209 | //------------------------------------------------------------------- | |
3210 | // compress array of track hypothesys | |
3211 | // keep only maxsize best hypothesys | |
3212 | //------------------------------------------------------------------- | |
3213 | if (esdindex>fTrackHypothesys.GetEntriesFast()) return; | |
3214 | if (! (fTrackHypothesys.At(esdindex)) ) return; | |
3215 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex); | |
3216 | Int_t entries = array->GetEntriesFast(); | |
3217 | // | |
3218 | //- find preliminary besttrack as a reference | |
3219 | Float_t minchi2=10000; | |
3220 | Int_t maxn=0; | |
3221 | AliITStrackMI * besttrack=0; | |
3222 | for (Int_t itrack=0;itrack<array->GetEntriesFast();itrack++){ | |
3223 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); | |
3224 | if (!track) continue; | |
3225 | Float_t chi2 = NormalizedChi2(track,0); | |
3226 | // | |
3227 | Int_t tpcLabel=track->GetESDtrack()->GetTPCLabel(); | |
3228 | track->SetLabel(tpcLabel); | |
3229 | CookdEdx(track); | |
3230 | track->SetFakeRatio(1.); | |
3231 | CookLabel(track,0.); //For comparison only | |
3232 | // | |
3233 | //if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track->fFakeRatio==0){ | |
3234 | if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){ | |
3235 | if (track->GetNumberOfClusters()<maxn) continue; | |
3236 | maxn = track->GetNumberOfClusters(); | |
3237 | if (chi2<minchi2){ | |
3238 | minchi2=chi2; | |
3239 | besttrack=track; | |
3240 | } | |
3241 | } | |
3242 | else{ | |
3243 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain | |
3244 | delete array->RemoveAt(itrack); | |
3245 | } | |
3246 | } | |
3247 | } | |
3248 | if (!besttrack) return; | |
3249 | // | |
3250 | // | |
3251 | //take errors of best track as a reference | |
3252 | Float_t *erry = GetErrY(esdindex), *errz = GetErrZ(esdindex); | |
3253 | Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex); | |
3254 | for (Int_t j=0;j<6;j++) { | |
3255 | if (besttrack->GetClIndex(j)>=0){ | |
3256 | erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6); | |
3257 | errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6); | |
3258 | ny[j] = besttrack->GetNy(j); | |
3259 | nz[j] = besttrack->GetNz(j); | |
3260 | } | |
3261 | } | |
3262 | // | |
3263 | // calculate normalized chi2 | |
3264 | // | |
3265 | Float_t * chi2 = new Float_t[entries]; | |
3266 | Int_t * index = new Int_t[entries]; | |
3267 | for (Int_t i=0;i<entries;i++) chi2[i] =10000; | |
3268 | for (Int_t itrack=0;itrack<entries;itrack++){ | |
3269 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); | |
3270 | if (track){ | |
3271 | AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters())); | |
3272 | track->SetChi2MIP(0,GetNormalizedChi2(track, mode)); | |
3273 | if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) | |
3274 | chi2[itrack] = track->GetChi2MIP(0); | |
3275 | else{ | |
3276 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain | |
3277 | delete array->RemoveAt(itrack); | |
3278 | } | |
3279 | } | |
3280 | } | |
3281 | } | |
3282 | // | |
3283 | TMath::Sort(entries,chi2,index,kFALSE); | |
3284 | besttrack = (AliITStrackMI*)array->At(index[0]); | |
3285 | if(besttrack) AliDebug(2,Form("ncls best track %d\n",besttrack->GetNumberOfClusters())); | |
3286 | if (besttrack&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){ | |
3287 | for (Int_t j=0;j<6;j++){ | |
3288 | if (besttrack->GetClIndex(j)>=0){ | |
3289 | erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6); | |
3290 | errz[j] = besttrack->GetSigmaZ(j); erry[j+6] = besttrack->GetSigmaY(j+6); | |
3291 | ny[j] = besttrack->GetNy(j); | |
3292 | nz[j] = besttrack->GetNz(j); | |
3293 | } | |
3294 | } | |
3295 | } | |
3296 | // | |
3297 | // calculate one more time with updated normalized errors | |
3298 | for (Int_t i=0;i<entries;i++) chi2[i] =10000; | |
3299 | for (Int_t itrack=0;itrack<entries;itrack++){ | |
3300 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); | |
3301 | if (track){ | |
3302 | track->SetChi2MIP(0,GetNormalizedChi2(track,mode)); | |
3303 | AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters())); | |
3304 | if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) | |
3305 | chi2[itrack] = track->GetChi2MIP(0)-0*(track->GetNumberOfClusters()+track->GetNDeadZone()); | |
3306 | else | |
3307 | { | |
3308 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain | |
3309 | delete array->RemoveAt(itrack); | |
3310 | } | |
3311 | } | |
3312 | } | |
3313 | } | |
3314 | entries = array->GetEntriesFast(); | |
3315 | // | |
3316 | // | |
3317 | if (entries>0){ | |
3318 | TObjArray * newarray = new TObjArray(); | |
3319 | TMath::Sort(entries,chi2,index,kFALSE); | |
3320 | besttrack = (AliITStrackMI*)array->At(index[0]); | |
3321 | if (besttrack){ | |
3322 | AliDebug(2,Form("ncls best track %d %f %f\n",besttrack->GetNumberOfClusters(),besttrack->GetChi2MIP(0),chi2[index[0]])); | |
3323 | // | |
3324 | for (Int_t j=0;j<6;j++){ | |
3325 | if (besttrack->GetNz(j)>0&&besttrack->GetNy(j)>0){ | |
3326 | erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6); | |
3327 | errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6); | |
3328 | ny[j] = besttrack->GetNy(j); | |
3329 | nz[j] = besttrack->GetNz(j); | |
3330 | } | |
3331 | } | |
3332 | besttrack->SetChi2MIP(0,GetNormalizedChi2(besttrack,mode)); | |
3333 | minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))); | |
3334 | Float_t minn = besttrack->GetNumberOfClusters()-3; | |
3335 | Int_t accepted=0; | |
3336 | for (Int_t i=0;i<entries;i++){ | |
3337 | AliITStrackMI * track = (AliITStrackMI*)array->At(index[i]); | |
3338 | if (!track) continue; | |
3339 | if (accepted>maxcut) break; | |
3340 | track->SetChi2MIP(0,GetNormalizedChi2(track,mode)); | |
3341 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain | |
3342 | if (track->GetNumberOfClusters()<6 && (track->GetChi2MIP(0)+track->GetNUsed()>minchi2)){ | |
3343 | delete array->RemoveAt(index[i]); | |
3344 | continue; | |
3345 | } | |
3346 | } | |
3347 | Bool_t shortbest = !track->GetConstrain() && track->GetNumberOfClusters()<6; | |
3348 | if ((track->GetChi2MIP(0)+track->GetNUsed()<minchi2 && track->GetNumberOfClusters()>=minn) ||shortbest){ | |
3349 | if (!shortbest) accepted++; | |
3350 | // | |
3351 | newarray->AddLast(array->RemoveAt(index[i])); | |
3352 | for (Int_t j=0;j<6;j++){ | |
3353 | if (nz[j]==0){ | |
3354 | erry[j] = track->GetSigmaY(j); erry[j+6] = track->GetSigmaY(j+6); | |
3355 | errz[j] = track->GetSigmaZ(j); errz[j] = track->GetSigmaZ(j+6); | |
3356 | ny[j] = track->GetNy(j); | |
3357 | nz[j] = track->GetNz(j); | |
3358 | } | |
3359 | } | |
3360 | } | |
3361 | else{ | |
3362 | delete array->RemoveAt(index[i]); | |
3363 | } | |
3364 | } | |
3365 | array->Delete(); | |
3366 | delete fTrackHypothesys.RemoveAt(esdindex); | |
3367 | fTrackHypothesys.AddAt(newarray,esdindex); | |
3368 | } | |
3369 | else{ | |
3370 | array->Delete(); | |
3371 | delete fTrackHypothesys.RemoveAt(esdindex); | |
3372 | } | |
3373 | } | |
3374 | delete [] chi2; | |
3375 | delete [] index; | |
3376 | } | |
3377 | //------------------------------------------------------------------------ | |
3378 | AliITStrackMI * AliITStrackerMI::GetBestHypothesys(Int_t esdindex, AliITStrackMI * original, Int_t checkmax) | |
3379 | { | |
3380 | //------------------------------------------------------------- | |
3381 | // try to find best hypothesy | |
3382 | // currently - minimal chi2 of track+backpropagated track+matching to the tpc track | |
3383 | //------------------------------------------------------------- | |
3384 | if (fTrackHypothesys.GetEntriesFast()<=esdindex) return 0; | |
3385 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex); | |
3386 | if (!array) return 0; | |
3387 | Int_t entries = array->GetEntriesFast(); | |
3388 | if (!entries) return 0; | |
3389 | Float_t minchi2 = 100000; | |
3390 | AliITStrackMI * besttrack=0; | |
3391 | // | |
3392 | AliITStrackMI * backtrack = new AliITStrackMI(*original); | |
3393 | AliITStrackMI * forwardtrack = new AliITStrackMI(*original); | |
3394 | Double_t xyzVtx[]={GetX(),GetY(),GetZ()}; | |
3395 | Double_t ersVtx[]={GetSigmaX()/3.,GetSigmaY()/3.,GetSigmaZ()/3.}; | |
3396 | // | |
3397 | for (Int_t i=0;i<entries;i++){ | |
3398 | AliITStrackMI * track = (AliITStrackMI*)array->At(i); | |
3399 | if (!track) continue; | |
3400 | Float_t sigmarfi,sigmaz; | |
3401 | GetDCASigma(track,sigmarfi,sigmaz); | |
3402 | track->SetDnorm(0,sigmarfi); | |
3403 | track->SetDnorm(1,sigmaz); | |
3404 | // | |
3405 | track->SetChi2MIP(1,1000000); | |
3406 | track->SetChi2MIP(2,1000000); | |
3407 | track->SetChi2MIP(3,1000000); | |
3408 | // | |
3409 | // backtrack | |
3410 | backtrack = new(backtrack) AliITStrackMI(*track); | |
3411 | if (track->GetConstrain()) { | |
3412 | if (!CorrectForPipeMaterial(backtrack,"inward")) continue; | |
3413 | if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue; | |
3414 | backtrack->ResetCovariance(10.); | |
3415 | }else{ | |
3416 | backtrack->ResetCovariance(10.); | |
3417 | } | |
3418 | backtrack->ResetClusters(); | |
3419 | ||
3420 | Double_t x = original->GetX(); | |
3421 | if (!RefitAt(x,backtrack,track)) continue; | |
3422 | // | |
3423 | track->SetChi2MIP(1,NormalizedChi2(backtrack,0)); | |
3424 | //for (Int_t i=2;i<6;i++){track->fDy[i]+=backtrack->fDy[i]; track->fDz[i]+=backtrack->fDz[i];} | |
3425 | if (track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)*6.) continue; | |
3426 | track->SetChi22(GetMatchingChi2(backtrack,original)); | |
3427 | ||
3428 | if ((track->GetConstrain()) && track->GetChi22()>90.) continue; | |
3429 | if ((!track->GetConstrain()) && track->GetChi22()>30.) continue; | |
3430 | if ( track->GetChi22()/track->GetNumberOfClusters()>11.) continue; | |
3431 | ||
3432 | ||
3433 | if (!(track->GetConstrain())&&track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)) continue; | |
3434 | // | |
3435 | //forward track - without constraint | |
3436 | forwardtrack = new(forwardtrack) AliITStrackMI(*original); | |
3437 | forwardtrack->ResetClusters(); | |
3438 | x = track->GetX(); | |
3439 | RefitAt(x,forwardtrack,track); | |
3440 | track->SetChi2MIP(2,NormalizedChi2(forwardtrack,0)); | |
3441 | if (track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)*6.0) continue; | |
3442 | if (!(track->GetConstrain())&&track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)) continue; | |
3443 | ||
3444 | //track->fD[0] = forwardtrack->GetD(GetX(),GetY()); | |
3445 | //track->fD[1] = forwardtrack->GetZat(GetX())-GetZ(); | |
3446 | forwardtrack->GetDZ(GetX(),GetY(),GetZ(),track->GetDP()); //I.B. | |
3447 | forwardtrack->SetD(0,track->GetD(0)); | |
3448 | forwardtrack->SetD(1,track->GetD(1)); | |
3449 | { | |
3450 | Int_t list[6]; | |
3451 | AliITSRecPoint* clist[6]; | |
3452 | track->SetChi2MIP(4,GetNumberOfSharedClusters(track,esdindex,list,clist)); | |
3453 | if ( (!track->GetConstrain()) && track->GetChi2MIP(4)>1.0) continue; | |
3454 | } | |
3455 | ||
3456 | track->SetChi2MIP(3,GetInterpolatedChi2(forwardtrack,backtrack)); | |
3457 | if ( (track->GetChi2MIP(3)>6.*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) continue; | |
3458 | if ( (!track->GetConstrain()) && (track->GetChi2MIP(3)>2*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) { | |
3459 | track->SetChi2MIP(3,1000); | |
3460 | continue; | |
3461 | } | |
3462 | Double_t chi2 = track->GetChi2MIP(0)+track->GetNUsed(); | |
3463 | // | |
3464 | for (Int_t ichi=0;ichi<5;ichi++){ | |
3465 | forwardtrack->SetChi2MIP(ichi, track->GetChi2MIP(ichi)); | |
3466 | } | |
3467 | if (chi2 < minchi2){ | |
3468 | //besttrack = new AliITStrackMI(*forwardtrack); | |
3469 | besttrack = track; | |
3470 | besttrack->SetLabel(track->GetLabel()); | |
3471 | besttrack->SetFakeRatio(track->GetFakeRatio()); | |
3472 | minchi2 = chi2; | |
3473 | //original->fD[0] = forwardtrack->GetD(GetX(),GetY()); | |
3474 | //original->fD[1] = forwardtrack->GetZat(GetX())-GetZ(); | |
3475 | forwardtrack->GetDZ(GetX(),GetY(),GetZ(),original->GetDP()); //I.B. | |
3476 | } | |
3477 | } | |
3478 | delete backtrack; | |
3479 | delete forwardtrack; | |
3480 | Int_t accepted=0; | |
3481 | for (Int_t i=0;i<entries;i++){ | |
3482 | AliITStrackMI * track = (AliITStrackMI*)array->At(i); | |
3483 | ||
3484 | if (!track) continue; | |
3485 | ||
3486 | if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. || | |
3487 | (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)|| | |
3488 | track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.){ | |
3489 | if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain | |
3490 | delete array->RemoveAt(i); | |
3491 | continue; | |
3492 | } | |
3493 | } | |
3494 | else{ | |
3495 | accepted++; | |
3496 | } | |
3497 | } | |
3498 | // | |
3499 | array->Compress(); | |
3500 | SortTrackHypothesys(esdindex,checkmax,1); | |
3501 | ||
3502 | array = (TObjArray*) fTrackHypothesys.At(esdindex); | |
3503 | if (!array) return 0; // PH What can be the reason? Check SortTrackHypothesys | |
3504 | besttrack = (AliITStrackMI*)array->At(0); | |
3505 | if (!besttrack) return 0; | |
3506 | besttrack->SetChi2MIP(8,0); | |
3507 | fBestTrackIndex[esdindex]=0; | |
3508 | entries = array->GetEntriesFast(); | |
3509 | AliITStrackMI *longtrack =0; | |
3510 | minchi2 =1000; | |
3511 | Float_t minn=besttrack->GetNumberOfClusters()+besttrack->GetNDeadZone(); | |
3512 | for (Int_t itrack=entries-1;itrack>0;itrack--) { | |
3513 | AliITStrackMI * track = (AliITStrackMI*)array->At(itrack); | |
3514 | if (!track->GetConstrain()) continue; | |
3515 | if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue; | |
3516 | if (track->GetChi2MIP(0)-besttrack->GetChi2MIP(0)>0.0) continue; | |
3517 | if (track->GetChi2MIP(0)>4.) continue; | |
3518 | minn = track->GetNumberOfClusters()+track->GetNDeadZone(); | |
3519 | longtrack =track; | |
3520 | } | |
3521 | //if (longtrack) besttrack=longtrack; | |
3522 | ||
3523 | Int_t list[6]; | |
3524 | AliITSRecPoint * clist[6]; | |
3525 | Float_t shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist); | |
3526 | if (besttrack->GetConstrain()&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&besttrack->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1) | |
3527 | &&besttrack->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&besttrack->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){ | |
3528 | RegisterClusterTracks(besttrack,esdindex); | |
3529 | } | |
3530 | // | |
3531 | // | |
3532 | if (shared>0.0){ | |
3533 | Int_t nshared; | |
3534 | Int_t overlist[6]; | |
3535 | Int_t sharedtrack = GetOverlapTrack(besttrack, esdindex, nshared, list, overlist); | |
3536 | if (sharedtrack>=0){ | |
3537 | // | |
3538 | besttrack = GetBest2Tracks(esdindex,sharedtrack,10,5.5); | |
3539 | if (besttrack){ | |
3540 | shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist); | |
3541 | } | |
3542 | else return 0; | |
3543 | } | |
3544 | } | |
3545 | ||
3546 | if (shared>2.5) return 0; | |
3547 | if (shared>1.0) return besttrack; | |
3548 | // | |
3549 | // Don't sign clusters if not gold track | |
3550 | // | |
3551 | if (!besttrack->IsGoldPrimary()) return besttrack; | |
3552 | if (besttrack->GetESDtrack()->GetKinkIndex(0)!=0) return besttrack; //track belong to kink | |
3553 | // | |
3554 | if (fConstraint[fPass]){ | |
3555 | // | |
3556 | // sign clusters | |
3557 | // | |
3558 | Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex); | |
3559 | for (Int_t i=0;i<6;i++){ | |
3560 | Int_t index = besttrack->GetClIndex(i); | |
3561 | if (index<0) continue; | |
3562 | Int_t ilayer = (index & 0xf0000000) >> 28; | |
3563 | if (besttrack->GetSigmaY(ilayer)<0.00000000001) continue; | |
3564 | AliITSRecPoint *c = (AliITSRecPoint*)GetCluster(index); | |
3565 | if (!c) continue; | |
3566 | if (ilayer>3&&c->GetNy()+c->GetNz()>6) continue; | |
3567 | if ( (c->GetNy()+c->GetNz() )> ny[i]+nz[i]+0.7) continue; //shared track | |
3568 | if ( c->GetNz()> nz[i]+0.7) continue; //shared track | |
3569 | if ( ilayer>2&& AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(ilayer)) | |
3570 | if (besttrack->GetNormQ(ilayer)/besttrack->GetExpQ()>1.5) continue; | |
3571 | //if ( c->GetNy()> ny[i]+0.7) continue; //shared track | |
3572 | ||
3573 | Bool_t cansign = kTRUE; | |
3574 | for (Int_t itrack=0;itrack<entries; itrack++){ | |
3575 | AliITStrackMI * track = (AliITStrackMI*)array->At(i); | |
3576 | if (!track) continue; | |
3577 | if (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*shared+1.) break; | |
3578 | if ( (track->GetClIndex(ilayer)>=0) && (track->GetClIndex(ilayer)!=besttrack->GetClIndex(ilayer))){ | |
3579 | cansign = kFALSE; | |
3580 | break; | |
3581 | } | |
3582 | } | |
3583 | if (cansign){ | |
3584 | if (TMath::Abs(besttrack->GetDy(ilayer)/besttrack->GetSigmaY(ilayer))>3.) continue; | |
3585 | if (TMath::Abs(besttrack->GetDz(ilayer)/besttrack->GetSigmaZ(ilayer))>3.) continue; | |
3586 | if (!c->IsUsed()) c->Use(); | |
3587 | } | |
3588 | } | |
3589 | } | |
3590 | return besttrack; | |
3591 | } | |
3592 | //------------------------------------------------------------------------ | |
3593 | void AliITStrackerMI::GetBestHypothesysMIP(TObjArray &itsTracks) | |
3594 | { | |
3595 | // | |
3596 | // get "best" hypothesys | |
3597 | // | |
3598 | ||
3599 | Int_t nentries = itsTracks.GetEntriesFast(); | |
3600 | for (Int_t i=0;i<nentries;i++){ | |
3601 | AliITStrackMI* track = (AliITStrackMI*)itsTracks.At(i); | |
3602 | if (!track) continue; | |
3603 | TObjArray * array = (TObjArray*) fTrackHypothesys.At(i); | |
3604 | if (!array) continue; | |
3605 | if (array->GetEntriesFast()<=0) continue; | |
3606 | // | |
3607 | AliITStrackMI* longtrack=0; | |
3608 | Float_t minn=0; | |
3609 | Float_t maxchi2=1000; | |
3610 | for (Int_t j=0;j<array->GetEntriesFast();j++){ | |
3611 | AliITStrackMI* trackHyp = (AliITStrackMI*)array->At(j); | |
3612 | if (!trackHyp) continue; | |
3613 | if (trackHyp->GetGoldV0()) { | |
3614 | longtrack = trackHyp; //gold V0 track taken | |
3615 | break; | |
3616 | } | |
3617 | if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()<minn) continue; | |
3618 | Float_t chi2 = trackHyp->GetChi2MIP(0); | |
3619 | if (fAfterV0){ | |
3620 | if (!trackHyp->GetGoldV0()&&trackHyp->GetConstrain()==kFALSE) chi2+=5; | |
3621 | } | |
3622 | if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = trackHyp->GetChi2MIP(0); | |
3623 | // | |
3624 | if (chi2 > maxchi2) continue; | |
3625 | minn= trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone(); | |
3626 | maxchi2 = chi2; | |
3627 | longtrack=trackHyp; | |
3628 | } | |
3629 | // | |
3630 | // | |
3631 | // | |
3632 | AliITStrackMI * besttrack = (AliITStrackMI*)array->At(0); | |
3633 | if (!longtrack) {longtrack = besttrack;} | |
3634 | else besttrack= longtrack; | |
3635 | // | |
3636 | if (besttrack) { | |
3637 | Int_t list[6]; | |
3638 | AliITSRecPoint * clist[6]; | |
3639 | Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist); | |
3640 | // | |
3641 | track->SetNUsed(shared); | |
3642 | track->SetNSkipped(besttrack->GetNSkipped()); | |
3643 | track->SetChi2MIP(0,besttrack->GetChi2MIP(0)); | |
3644 | if (shared>0) { | |
3645 | if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue; | |
3646 | Int_t nshared; | |
3647 | Int_t overlist[6]; | |
3648 | // | |
3649 | Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist); | |
3650 | //if (sharedtrack==-1) sharedtrack=0; | |
3651 | if (sharedtrack>=0) { | |
3652 | besttrack = GetBest2Tracks(i,sharedtrack,10,5.5); | |
3653 | } | |
3654 | } | |
3655 | if (besttrack&&fAfterV0) { | |
3656 | UpdateESDtrack(besttrack,AliESDtrack::kITSin); | |
3657 | } | |
3658 | if (besttrack&&fConstraint[fPass]) | |
3659 | UpdateESDtrack(besttrack,AliESDtrack::kITSin); | |
3660 | if (besttrack->GetChi2MIP(0)+besttrack->GetNUsed()>1.5 && fConstraint[fPass]) { | |
3661 | if ( TMath::Abs(besttrack->GetD(0))>0.1 || | |
3662 | TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE); | |
3663 | } | |
3664 | ||
3665 | } | |
3666 | } | |
3667 | } | |
3668 | //------------------------------------------------------------------------ | |
3669 | void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const { | |
3670 | //-------------------------------------------------------------------- | |
3671 | //This function "cooks" a track label. If label<0, this track is fake. | |
3672 | //-------------------------------------------------------------------- | |
3673 | Int_t tpcLabel=-1; | |
3674 | ||
3675 | if (track->GetESDtrack()){ | |
3676 | tpcLabel = track->GetESDtrack()->GetTPCLabel(); | |
3677 | ULong_t trStatus=track->GetESDtrack()->GetStatus(); | |
3678 | if(!(trStatus&AliESDtrack::kTPCin)) tpcLabel=track->GetLabel(); // for ITSsa tracks | |
3679 | } | |
3680 | track->SetChi2MIP(9,0); | |
3681 | Int_t nwrong=0; | |
3682 | for (Int_t i=0;i<track->GetNumberOfClusters();i++){ | |
3683 | Int_t cindex = track->GetClusterIndex(i); | |
3684 | Int_t l=(cindex & 0xf0000000) >> 28; | |
3685 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex); | |
3686 | Int_t isWrong=1; | |
3687 | for (Int_t ind=0;ind<3;ind++){ | |
3688 | if (cl->GetLabel(ind)==TMath::Abs(tpcLabel)) isWrong=0; | |
3689 | //AliDebug(2,Form("icl %d ilab %d lab %d",i,ind,cl->GetLabel(ind))); | |
3690 | } | |
3691 | track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l)); | |
3692 | nwrong+=isWrong; | |
3693 | } | |
3694 | Int_t nclusters = track->GetNumberOfClusters(); | |
3695 | if (nclusters > 0) //PH Some tracks don't have any cluster | |
3696 | track->SetFakeRatio(double(nwrong)/double(nclusters)); | |
3697 | if (tpcLabel>0 && track->GetFakeRatio()>wrong) { | |
3698 | track->SetLabel(-tpcLabel); | |
3699 | } else { | |
3700 | track->SetLabel(tpcLabel); | |
3701 | } | |
3702 | AliDebug(2,Form(" nls %d wrong %d label %d tpcLabel %d\n",nclusters,nwrong,track->GetLabel(),tpcLabel)); | |
3703 | ||
3704 | } | |
3705 | //------------------------------------------------------------------------ | |
3706 | void AliITStrackerMI::CookdEdx(AliITStrackMI* track){ | |
3707 | // | |
3708 | // Fill the dE/dx in this track | |
3709 | // | |
3710 | track->SetChi2MIP(9,0); | |
3711 | for (Int_t i=0;i<track->GetNumberOfClusters();i++){ | |
3712 | Int_t cindex = track->GetClusterIndex(i); | |
3713 | Int_t l=(cindex & 0xf0000000) >> 28; | |
3714 | AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex); | |
3715 | Int_t lab = TMath::Abs(track->GetESDtrack()->GetTPCLabel()); | |
3716 | Int_t isWrong=1; | |
3717 | for (Int_t ind=0;ind<3;ind++){ | |
3718 | if (cl->GetLabel(ind)==lab) isWrong=0; | |
3719 | } | |
3720 | track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l)); | |
3721 | } | |
3722 | Double_t low=0.; | |
3723 | Double_t up=0.51; | |
3724 | track->CookdEdx(low,up); | |
3725 | } | |
3726 | //------------------------------------------------------------------------ | |
3727 | void AliITStrackerMI::MakeCoefficients(Int_t ntracks){ | |
3728 | // | |
3729 | // Create some arrays | |
3730 | // | |
3731 | if (fCoefficients) delete []fCoefficients; | |
3732 | fCoefficients = new Float_t[ntracks*48]; | |
3733 | for (Int_t i=0;i<ntracks*48;i++) fCoefficients[i]=-1.; | |
3734 | } | |
3735 | //------------------------------------------------------------------------ | |
3736 | Double_t AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer) | |
3737 | { | |
3738 | // | |
3739 | // Compute predicted chi2 | |
3740 | // | |
3741 | Float_t erry,errz,covyz; | |
3742 | Float_t theta = track->GetTgl(); | |
3743 | Float_t phi = track->GetSnp(); | |
3744 | phi = TMath::Abs(phi)*TMath::Sqrt(1./((1.-phi)*(1.+phi))); | |
3745 | AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz,covyz); | |
3746 | 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())); | |
3747 | // Take into account the mis-alignment (bring track to cluster plane) | |
3748 | Double_t xTrOrig=track->GetX(); | |
3749 | if (!track->Propagate(xTrOrig+cluster->GetX())) return 1000.; | |
3750 | 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())); | |
3751 | Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz,covyz); | |
3752 | // Bring the track back to detector plane in ideal geometry | |
3753 | // [mis-alignment will be accounted for in UpdateMI()] | |
3754 | if (!track->Propagate(xTrOrig)) return 1000.; | |
3755 | Float_t ny,nz; | |
3756 | AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz); | |
3757 | Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny; | |
3758 | if (delta>1){ | |
3759 | chi2+=0.5*TMath::Min(delta/2,2.); | |
3760 | chi2+=2.*cluster->GetDeltaProbability(); | |
3761 | } | |
3762 | // | |
3763 | track->SetNy(layer,ny); | |
3764 | track->SetNz(layer,nz); | |
3765 | track->SetSigmaY(layer,erry); | |
3766 | track->SetSigmaZ(layer, errz); | |
3767 | track->SetSigmaYZ(layer,covyz); | |
3768 | //track->fNormQ[layer] = cluster->GetQ()/TMath::Sqrt(1+theta*theta+phi*phi); | |
3769 | track->SetNormQ(layer,cluster->GetQ()/TMath::Sqrt((1.+ track->GetTgl()*track->GetTgl())/((1.-track->GetSnp())*(1.+track->GetSnp())))); | |
3770 | return chi2; | |
3771 | ||
3772 | } | |
3773 | //------------------------------------------------------------------------ | |
3774 | Int_t AliITStrackerMI::UpdateMI(AliITStrackMI* track, const AliITSRecPoint* cl,Double_t chi2,Int_t index) const | |
3775 | { | |
3776 | // | |
3777 | // Update ITS track | |
3778 | // | |
3779 | Int_t layer = (index & 0xf0000000) >> 28; | |
3780 | track->SetClIndex(layer, index); | |
3781 | if (layer>1&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(layer)) { | |
3782 | if (track->GetNormQ(layer)/track->GetExpQ()<0.5 ) { | |
3783 | chi2+= (0.5-track->GetNormQ(layer)/track->GetExpQ())*10.; | |
3784 | track->SetdEdxMismatch(track->GetdEdxMismatch()+(0.5-track->GetNormQ(layer)/track->GetExpQ())*10.); | |
3785 | } | |
3786 | } | |
3787 | ||
3788 | if (TMath::Abs(cl->GetQ())<1.e-13) return 0; // ingore the "virtual" clusters | |
3789 | ||
3790 | ||
3791 | // Take into account the mis-alignment (bring track to cluster plane) | |
3792 | Double_t xTrOrig=track->GetX(); | |
3793 | Float_t clxyz[3]; cl->GetGlobalXYZ(clxyz);Double_t trxyz[3]; track->GetXYZ(trxyz); | |
3794 | AliDebug(2,Form("gtr %f %f %f",trxyz[0],trxyz[1],trxyz[2])); | |
3795 | AliDebug(2,Form("gcl %f %f %f",clxyz[0],clxyz[1],clxyz[2])); | |
3796 | AliDebug(2,Form(" xtr %f xcl %f",track->GetX(),cl->GetX())); | |
3797 | ||
3798 | if (!track->Propagate(xTrOrig+cl->GetX())) return 0; | |
3799 | ||
3800 | AliCluster c(*cl); | |
3801 | c.SetSigmaY2(track->GetSigmaY(layer)*track->GetSigmaY(layer)); | |
3802 | c.SetSigmaZ2(track->GetSigmaZ(layer)*track->GetSigmaZ(layer)); | |
3803 | c.SetSigmaYZ(track->GetSigmaYZ(layer)); | |
3804 | ||
3805 | ||
3806 | Int_t updated = track->UpdateMI(&c,chi2,index); | |
3807 | // Bring the track back to detector plane in ideal geometry | |
3808 | if (!track->Propagate(xTrOrig)) return 0; | |
3809 | ||
3810 | if(!updated) AliDebug(2,"update failed"); | |
3811 | return updated; | |
3812 | } | |
3813 | ||
3814 | //------------------------------------------------------------------------ | |
3815 | void AliITStrackerMI::GetDCASigma(const AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz) | |
3816 | { | |
3817 | // | |
3818 | //DCA sigmas parameterization | |
3819 | //to be paramterized using external parameters in future | |
3820 | // | |
3821 | // | |
3822 | sigmarfi = 0.0040+1.4 *TMath::Abs(track->GetC())+332.*track->GetC()*track->GetC(); | |
3823 | sigmaz = 0.0110+4.37*TMath::Abs(track->GetC()); | |
3824 | } | |
3825 | //------------------------------------------------------------------------ | |
3826 | void AliITStrackerMI::SignDeltas(const TObjArray *clusterArray, Float_t vz) | |
3827 | { | |
3828 | // | |
3829 | // Clusters from delta electrons? | |
3830 | // | |
3831 | Int_t entries = clusterArray->GetEntriesFast(); | |
3832 | if (entries<4) return; | |
3833 | AliITSRecPoint* cluster = (AliITSRecPoint*)clusterArray->At(0); | |
3834 | Int_t layer = cluster->GetLayer(); | |
3835 | if (layer>1) return; | |
3836 | Int_t index[10000]; | |
3837 | Int_t ncandidates=0; | |
3838 | Float_t r = (layer>0)? 7:4; | |
3839 | // | |
3840 | for (Int_t i=0;i<entries;i++){ | |
3841 | AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(i); | |
3842 | Float_t nz = 1+TMath::Abs((cl0->GetZ()-vz)/r); | |
3843 | if (cl0->GetNy()+cl0->GetNz()<=5+2*layer+nz) continue; | |
3844 | index[ncandidates] = i; //candidate to belong to delta electron track | |
3845 | ncandidates++; | |
3846 | if (cl0->GetNy()+cl0->GetNz()>9+2*layer+nz) { | |
3847 | cl0->SetDeltaProbability(1); | |
3848 | } | |
3849 | } | |
3850 | // | |
3851 | // | |
3852 | // | |
3853 | for (Int_t i=0;i<ncandidates;i++){ | |
3854 | AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(index[i]); | |
3855 | if (cl0->GetDeltaProbability()>0.8) continue; | |
3856 | // | |
3857 | Int_t ncl = 0; | |
3858 | Float_t y[100],z[100],sumy,sumz,sumy2, sumyz, sumw; | |
3859 | sumy=sumz=sumy2=sumyz=sumw=0.0; | |
3860 | for (Int_t j=0;j<ncandidates;j++){ | |
3861 | if (i==j) continue; | |
3862 | AliITSRecPoint* cl1 = (AliITSRecPoint*)clusterArray->At(index[j]); | |
3863 | // | |
3864 | Float_t dz = cl0->GetZ()-cl1->GetZ(); | |
3865 | Float_t dy = cl0->GetY()-cl1->GetY(); | |
3866 | if (TMath::Sqrt(dz*dz+dy*dy)<0.2){ | |
3867 | Float_t weight = cl1->GetNy()+cl1->GetNz()-2; | |
3868 | y[ncl] = cl1->GetY(); | |
3869 | z[ncl] = cl1->GetZ(); | |
3870 | sumy+= y[ncl]*weight; | |
3871 | sumz+= z[ncl]*weight; | |
3872 | sumy2+=y[ncl]*y[ncl]*weight; | |
3873 | sumyz+=y[ncl]*z[ncl]*weight; | |
3874 | sumw+=weight; | |
3875 | ncl++; | |
3876 | } | |
3877 | } | |
3878 | if (ncl<4) continue; | |
3879 | Float_t det = sumw*sumy2 - sumy*sumy; | |
3880 | Float_t delta=1000; | |
3881 | if (TMath::Abs(det)>0.01){ | |
3882 | Float_t z0 = (sumy2*sumz - sumy*sumyz)/det; | |
3883 | Float_t k = (sumyz*sumw - sumy*sumz)/det; | |
3884 | delta = TMath::Abs(cl0->GetZ()-(z0+k*cl0->GetY())); | |
3885 | } | |
3886 | else{ | |
3887 | Float_t z0 = sumyz/sumy; | |
3888 | delta = TMath::Abs(cl0->GetZ()-z0); | |
3889 | } | |
3890 | if ( delta<0.05) { | |
3891 | cl0->SetDeltaProbability(1-20.*delta); | |
3892 | } | |
3893 | } | |
3894 | } | |
3895 | //------------------------------------------------------------------------ | |
3896 | void AliITStrackerMI::UpdateESDtrack(AliITStrackMI* track, ULong_t flags) const | |
3897 | { | |
3898 | // | |
3899 | // Update ESD track | |
3900 | // | |
3901 | track->UpdateESDtrack(flags); | |
3902 | AliITStrackMI * oldtrack = (AliITStrackMI*)(track->GetESDtrack()->GetITStrack()); | |
3903 | if (oldtrack) delete oldtrack; | |
3904 | track->GetESDtrack()->SetITStrack(new AliITStrackMI(*track)); | |
3905 | if (TMath::Abs(track->GetDnorm(1))<0.000000001){ | |
3906 | printf("Problem\n"); | |
3907 | } | |
3908 | } | |
3909 | //------------------------------------------------------------------------ | |
3910 | Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{ | |
3911 | // | |
3912 | // Get nearest upper layer close to the point xr. | |
3913 | // rough approximation | |
3914 | // | |
3915 | const Float_t kRadiuses[6]={4,6.5,15.03,24.,38.5,43.7}; | |
3916 | Float_t radius = TMath::Sqrt(xr[0]*xr[0]+xr[1]*xr[1]); | |
3917 | Int_t res =6; | |
3918 | for (Int_t i=0;i<6;i++){ | |
3919 | if (radius<kRadiuses[i]){ | |
3920 | res =i; | |
3921 | break; | |
3922 | } | |
3923 | } | |
3924 | return res; | |
3925 | } | |
3926 | //------------------------------------------------------------------------ | |
3927 | void AliITStrackerMI::BuildMaterialLUT(TString material) { | |
3928 | //-------------------------------------------------------------------- | |
3929 | // Fill a look-up table with mean material | |
3930 | //-------------------------------------------------------------------- | |
3931 | ||
3932 | Int_t n=1000; | |
3933 | Double_t mparam[7]; | |
3934 | Double_t point1[3],point2[3]; | |
3935 | Double_t phi,cosphi,sinphi,z; | |
3936 | // 0-5 layers, 6 pipe, 7-8 shields | |
3937 | Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 8.0,25.0}; | |
3938 | Double_t rmax[9]={ 5.5, 8.0,17.0,26.0,41.0,47.0, 3.0,10.5,30.0}; | |
3939 | ||
3940 | Int_t ifirst=0,ilast=0; | |
3941 | if(material.Contains("Pipe")) { | |
3942 | ifirst=6; ilast=6; | |
3943 | } else if(material.Contains("Shields")) { | |
3944 | ifirst=7; ilast=8; | |
3945 | } else if(material.Contains("Layers")) { | |
3946 | ifirst=0; ilast=5; | |
3947 | } else { | |
3948 | Error("BuildMaterialLUT","Wrong layer name\n"); | |
3949 | } | |
3950 | ||
3951 | for(Int_t imat=ifirst; imat<=ilast; imat++) { | |
3952 | Double_t param[5]={0.,0.,0.,0.,0.}; | |
3953 | for (Int_t i=0; i<n; i++) { | |
3954 | phi = 2.*TMath::Pi()*gRandom->Rndm(); | |
3955 | cosphi = TMath::Cos(phi); sinphi = TMath::Sin(phi); | |
3956 | z = 14.*(-1.+2.*gRandom->Rndm()); // SPD barrel | |
3957 | point1[0] = rmin[imat]*cosphi; | |
3958 | point1[1] = rmin[imat]*sinphi; | |
3959 | point1[2] = z; | |
3960 | point2[0] = rmax[imat]*cosphi; | |
3961 | point2[1] = rmax[imat]*sinphi; | |
3962 | point2[2] = z; | |
3963 | AliTracker::MeanMaterialBudget(point1,point2,mparam); | |
3964 | for(Int_t j=0;j<5;j++) param[j]+=mparam[j]; | |
3965 | } | |
3966 | for(Int_t j=0;j<5;j++) param[j]/=(Float_t)n; | |
3967 | if(imat<=5) { | |
3968 | fxOverX0Layer[imat] = param[1]; | |
3969 | fxTimesRhoLayer[imat] = param[0]*param[4]; | |
3970 | } else if(imat==6) { | |
3971 | fxOverX0Pipe = param[1]; | |
3972 | fxTimesRhoPipe = param[0]*param[4]; | |
3973 | } else if(imat==7) { | |
3974 | fxOverX0Shield[0] = param[1]; | |
3975 | fxTimesRhoShield[0] = param[0]*param[4]; | |
3976 | } else if(imat==8) { | |
3977 | fxOverX0Shield[1] = param[1]; | |
3978 | fxTimesRhoShield[1] = param[0]*param[4]; | |
3979 | } | |
3980 | } | |
3981 | /* | |
3982 | printf("%s\n",material.Data()); | |
3983 | printf("%f %f\n",fxOverX0Pipe,fxTimesRhoPipe); | |
3984 | printf("%f %f\n",fxOverX0Shield[0],fxTimesRhoShield[0]); | |
3985 | printf("%f %f\n",fxOverX0Shield[1],fxTimesRhoShield[1]); | |
3986 | printf("%f %f\n",fxOverX0Layer[0],fxTimesRhoLayer[0]); | |
3987 | printf("%f %f\n",fxOverX0Layer[1],fxTimesRhoLayer[1]); | |
3988 | printf("%f %f\n",fxOverX0Layer[2],fxTimesRhoLayer[2]); | |
3989 | printf("%f %f\n",fxOverX0Layer[3],fxTimesRhoLayer[3]); | |
3990 | printf("%f %f\n",fxOverX0Layer[4],fxTimesRhoLayer[4]); | |
3991 | printf("%f %f\n",fxOverX0Layer[5],fxTimesRhoLayer[5]); | |
3992 | */ | |
3993 | return; | |
3994 | } | |
3995 | //------------------------------------------------------------------------ | |
3996 | Int_t AliITStrackerMI::CorrectForPipeMaterial(AliITStrackMI *t, | |
3997 | TString direction) { | |
3998 | //------------------------------------------------------------------- | |
3999 | // Propagate beyond beam pipe and correct for material | |
4000 | // (material budget in different ways according to fUseTGeo value) | |
4001 | // Add time if going outward (PropagateTo or PropagateToTGeo) | |
4002 | //------------------------------------------------------------------- | |
4003 | ||
4004 | // Define budget mode: | |
4005 | // 0: material from AliITSRecoParam (hard coded) | |
4006 | // 1: material from TGeo in one step (on the fly) | |
4007 | // 2: material from lut | |
4008 | // 3: material from TGeo in one step (same for all hypotheses) | |
4009 | Int_t mode; | |
4010 | switch(fUseTGeo) { | |
4011 | case 0: | |
4012 | mode=0; | |
4013 | break; | |
4014 | case 1: | |
4015 | mode=1; | |
4016 | break; | |
4017 | case 2: | |
4018 | mode=2; | |
4019 | break; | |
4020 | case 3: | |
4021 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4022 | { mode=3; } else { mode=1; } | |
4023 | break; | |
4024 | case 4: | |
4025 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4026 | { mode=3; } else { mode=2; } | |
4027 | break; | |
4028 | default: | |
4029 | mode=0; | |
4030 | break; | |
4031 | } | |
4032 | if(fTrackingPhase.Contains("Default")) mode=0; | |
4033 | ||
4034 | Int_t index=fCurrentEsdTrack; | |
4035 | ||
4036 | Float_t dir = (direction.Contains("inward") ? 1. : -1.); | |
4037 | Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe()); | |
4038 | Double_t xToGo; | |
4039 | if (!t->GetLocalXat(rToGo,xToGo)) return 0; | |
4040 | ||
4041 | Double_t xOverX0,x0,lengthTimesMeanDensity; | |
4042 | ||
4043 | switch(mode) { | |
4044 | case 0: | |
4045 | xOverX0 = AliITSRecoParam::GetdPipe(); | |
4046 | x0 = AliITSRecoParam::GetX0Be(); | |
4047 | lengthTimesMeanDensity = xOverX0*x0; | |
4048 | lengthTimesMeanDensity *= dir; | |
4049 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4050 | break; | |
4051 | case 1: | |
4052 | if (!t->PropagateToTGeo(xToGo,1)) return 0; | |
4053 | break; | |
4054 | case 2: | |
4055 | if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe"); | |
4056 | xOverX0 = fxOverX0Pipe; | |
4057 | lengthTimesMeanDensity = fxTimesRhoPipe; | |
4058 | lengthTimesMeanDensity *= dir; | |
4059 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4060 | break; | |
4061 | case 3: | |
4062 | if(!fxOverX0PipeTrks || index<0 || index>=fNtracks) Error("CorrectForPipeMaterial","Incorrect usage of UseTGeo option!\n"); | |
4063 | if(fxOverX0PipeTrks[index]<0) { | |
4064 | if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0; | |
4065 | Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/ | |
4066 | ((1.-t->GetSnp())*(1.+t->GetSnp()))); | |
4067 | fxOverX0PipeTrks[index] = TMath::Abs(xOverX0)/angle; | |
4068 | fxTimesRhoPipeTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle; | |
4069 | return 1; | |
4070 | } | |
4071 | xOverX0 = fxOverX0PipeTrks[index]; | |
4072 | lengthTimesMeanDensity = fxTimesRhoPipeTrks[index]; | |
4073 | lengthTimesMeanDensity *= dir; | |
4074 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4075 | break; | |
4076 | } | |
4077 | ||
4078 | return 1; | |
4079 | } | |
4080 | //------------------------------------------------------------------------ | |
4081 | Int_t AliITStrackerMI::CorrectForShieldMaterial(AliITStrackMI *t, | |
4082 | TString shield, | |
4083 | TString direction) { | |
4084 | //------------------------------------------------------------------- | |
4085 | // Propagate beyond SPD or SDD shield and correct for material | |
4086 | // (material budget in different ways according to fUseTGeo value) | |
4087 | // Add time if going outward (PropagateTo or PropagateToTGeo) | |
4088 | //------------------------------------------------------------------- | |
4089 | ||
4090 | // Define budget mode: | |
4091 | // 0: material from AliITSRecoParam (hard coded) | |
4092 | // 1: material from TGeo in steps of X cm (on the fly) | |
4093 | // X = AliITSRecoParam::GetStepSizeTGeo() | |
4094 | // 2: material from lut | |
4095 | // 3: material from TGeo in one step (same for all hypotheses) | |
4096 | Int_t mode; | |
4097 | switch(fUseTGeo) { | |
4098 | case 0: | |
4099 | mode=0; | |
4100 | break; | |
4101 | case 1: | |
4102 | mode=1; | |
4103 | break; | |
4104 | case 2: | |
4105 | mode=2; | |
4106 | break; | |
4107 | case 3: | |
4108 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4109 | { mode=3; } else { mode=1; } | |
4110 | break; | |
4111 | case 4: | |
4112 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4113 | { mode=3; } else { mode=2; } | |
4114 | break; | |
4115 | default: | |
4116 | mode=0; | |
4117 | break; | |
4118 | } | |
4119 | if(fTrackingPhase.Contains("Default")) mode=0; | |
4120 | ||
4121 | Float_t dir = (direction.Contains("inward") ? 1. : -1.); | |
4122 | Double_t rToGo; | |
4123 | Int_t shieldindex=0; | |
4124 | if (shield.Contains("SDD")) { // SDDouter | |
4125 | rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(1) : AliITSRecoParam::GetrOutsideShield(1)); | |
4126 | shieldindex=1; | |
4127 | } else if (shield.Contains("SPD")) { // SPDouter | |
4128 | rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(0) : AliITSRecoParam::GetrOutsideShield(0)); | |
4129 | shieldindex=0; | |
4130 | } else { | |
4131 | Error("CorrectForShieldMaterial"," Wrong shield name\n"); | |
4132 | return 0; | |
4133 | } | |
4134 | ||
4135 | // do nothing if we are already beyond the shield | |
4136 | Double_t rTrack = TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY()); | |
4137 | if(dir<0 && rTrack > rToGo) return 1; // going outward | |
4138 | if(dir>0 && rTrack < rToGo) return 1; // going inward | |
4139 | ||
4140 | ||
4141 | Double_t xToGo; | |
4142 | if (!t->GetLocalXat(rToGo,xToGo)) return 0; | |
4143 | ||
4144 | Int_t index=2*fCurrentEsdTrack+shieldindex; | |
4145 | ||
4146 | Double_t xOverX0,x0,lengthTimesMeanDensity; | |
4147 | Int_t nsteps=1; | |
4148 | ||
4149 | switch(mode) { | |
4150 | case 0: | |
4151 | xOverX0 = AliITSRecoParam::Getdshield(shieldindex); | |
4152 | x0 = AliITSRecoParam::GetX0shield(shieldindex); | |
4153 | lengthTimesMeanDensity = xOverX0*x0; | |
4154 | lengthTimesMeanDensity *= dir; | |
4155 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4156 | break; | |
4157 | case 1: | |
4158 | nsteps= (Int_t)(TMath::Abs(t->GetX()-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1; | |
4159 | if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction | |
4160 | break; | |
4161 | case 2: | |
4162 | if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields"); | |
4163 | xOverX0 = fxOverX0Shield[shieldindex]; | |
4164 | lengthTimesMeanDensity = fxTimesRhoShield[shieldindex]; | |
4165 | lengthTimesMeanDensity *= dir; | |
4166 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4167 | break; | |
4168 | case 3: | |
4169 | if(!fxOverX0ShieldTrks || index<0 || index>=2*fNtracks) Error("CorrectForShieldMaterial","Incorrect usage of UseTGeo option!\n"); | |
4170 | if(fxOverX0ShieldTrks[index]<0) { | |
4171 | if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0; | |
4172 | Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/ | |
4173 | ((1.-t->GetSnp())*(1.+t->GetSnp()))); | |
4174 | fxOverX0ShieldTrks[index] = TMath::Abs(xOverX0)/angle; | |
4175 | fxTimesRhoShieldTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle; | |
4176 | return 1; | |
4177 | } | |
4178 | xOverX0 = fxOverX0ShieldTrks[index]; | |
4179 | lengthTimesMeanDensity = fxTimesRhoShieldTrks[index]; | |
4180 | lengthTimesMeanDensity *= dir; | |
4181 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4182 | break; | |
4183 | } | |
4184 | ||
4185 | return 1; | |
4186 | } | |
4187 | //------------------------------------------------------------------------ | |
4188 | Int_t AliITStrackerMI::CorrectForLayerMaterial(AliITStrackMI *t, | |
4189 | Int_t layerindex, | |
4190 | Double_t oldGlobXYZ[3], | |
4191 | TString direction) { | |
4192 | //------------------------------------------------------------------- | |
4193 | // Propagate beyond layer and correct for material | |
4194 | // (material budget in different ways according to fUseTGeo value) | |
4195 | // Add time if going outward (PropagateTo or PropagateToTGeo) | |
4196 | //------------------------------------------------------------------- | |
4197 | ||
4198 | // Define budget mode: | |
4199 | // 0: material from AliITSRecoParam (hard coded) | |
4200 | // 1: material from TGeo in stepsof X cm (on the fly) | |
4201 | // X = AliITSRecoParam::GetStepSizeTGeo() | |
4202 | // 2: material from lut | |
4203 | // 3: material from TGeo in one step (same for all hypotheses) | |
4204 | Int_t mode; | |
4205 | switch(fUseTGeo) { | |
4206 | case 0: | |
4207 | mode=0; | |
4208 | break; | |
4209 | case 1: | |
4210 | mode=1; | |
4211 | break; | |
4212 | case 2: | |
4213 | mode=2; | |
4214 | break; | |
4215 | case 3: | |
4216 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4217 | { mode=3; } else { mode=1; } | |
4218 | break; | |
4219 | case 4: | |
4220 | if(fTrackingPhase.Contains("Clusters2Tracks")) | |
4221 | { mode=3; } else { mode=2; } | |
4222 | break; | |
4223 | default: | |
4224 | mode=0; | |
4225 | break; | |
4226 | } | |
4227 | if(fTrackingPhase.Contains("Default")) mode=0; | |
4228 | ||
4229 | Float_t dir = (direction.Contains("inward") ? 1. : -1.); | |
4230 | ||
4231 | Double_t r=fgLayers[layerindex].GetR(); | |
4232 | Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r); | |
4233 | ||
4234 | Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir; | |
4235 | Double_t xToGo; | |
4236 | if (!t->GetLocalXat(rToGo,xToGo)) return 0; | |
4237 | ||
4238 | Int_t index=6*fCurrentEsdTrack+layerindex; | |
4239 | ||
4240 | ||
4241 | Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0; | |
4242 | Int_t nsteps=1; | |
4243 | ||
4244 | // back before material (no correction) | |
4245 | Double_t rOld,xOld; | |
4246 | rOld=TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]); | |
4247 | if (!t->GetLocalXat(rOld,xOld)) return 0; | |
4248 | if (!t->Propagate(xOld)) return 0; | |
4249 | ||
4250 | switch(mode) { | |
4251 | case 0: | |
4252 | xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0); | |
4253 | lengthTimesMeanDensity = xOverX0*x0; | |
4254 | lengthTimesMeanDensity *= dir; | |
4255 | // Bring the track beyond the material | |
4256 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4257 | break; | |
4258 | case 1: | |
4259 | nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1; | |
4260 | if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction | |
4261 | break; | |
4262 | case 2: | |
4263 | if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers"); | |
4264 | xOverX0 = fxOverX0Layer[layerindex]; | |
4265 | lengthTimesMeanDensity = fxTimesRhoLayer[layerindex]; | |
4266 | lengthTimesMeanDensity *= dir; | |
4267 | // Bring the track beyond the material | |
4268 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4269 | break; | |
4270 | case 3: | |
4271 | if(!fxOverX0LayerTrks || index<0 || index>=6*fNtracks) Error("CorrectForLayerMaterial","Incorrect usage of UseTGeo option!\n"); | |
4272 | if(fxOverX0LayerTrks[index]<0) { | |
4273 | nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1; | |
4274 | if (!t->PropagateToTGeo(xToGo,nsteps,xOverX0,lengthTimesMeanDensity)) return 0; | |
4275 | Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/ | |
4276 | ((1.-t->GetSnp())*(1.+t->GetSnp()))); | |
4277 | fxOverX0LayerTrks[index] = TMath::Abs(xOverX0)/angle; | |
4278 | fxTimesRhoLayerTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle; | |
4279 | return 1; | |
4280 | } | |
4281 | xOverX0 = fxOverX0LayerTrks[index]; | |
4282 | lengthTimesMeanDensity = fxTimesRhoLayerTrks[index]; | |
4283 | lengthTimesMeanDensity *= dir; | |
4284 | if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0; | |
4285 | break; | |
4286 | } | |
4287 | ||
4288 | ||
4289 | return 1; | |
4290 | } | |
4291 | //------------------------------------------------------------------------ | |
4292 | void AliITStrackerMI::MakeTrksMaterialLUT(Int_t ntracks) { | |
4293 | //----------------------------------------------------------------- | |
4294 | // Initialize LUT for storing material for each prolonged track | |
4295 | //----------------------------------------------------------------- | |
4296 | fxOverX0PipeTrks = new Float_t[ntracks]; | |
4297 | fxTimesRhoPipeTrks = new Float_t[ntracks]; | |
4298 | fxOverX0ShieldTrks = new Float_t[ntracks*2]; | |
4299 | fxTimesRhoShieldTrks = new Float_t[ntracks*2]; | |
4300 | fxOverX0LayerTrks = new Float_t[ntracks*6]; | |
4301 | fxTimesRhoLayerTrks = new Float_t[ntracks*6]; | |
4302 | ||
4303 | for(Int_t i=0; i<ntracks; i++) { | |
4304 | fxOverX0PipeTrks[i] = -1.; | |
4305 | fxTimesRhoPipeTrks[i] = -1.; | |
4306 | } | |
4307 | for(Int_t j=0; j<ntracks*2; j++) { | |
4308 | fxOverX0ShieldTrks[j] = -1.; | |
4309 | fxTimesRhoShieldTrks[j] = -1.; | |
4310 | } | |
4311 | for(Int_t k=0; k<ntracks*6; k++) { | |
4312 | fxOverX0LayerTrks[k] = -1.; | |
4313 | fxTimesRhoLayerTrks[k] = -1.; | |
4314 | } | |
4315 | ||
4316 | fNtracks = ntracks; | |
4317 | ||
4318 | return; | |
4319 | } | |
4320 | //------------------------------------------------------------------------ | |
4321 | void AliITStrackerMI::DeleteTrksMaterialLUT() { | |
4322 | //----------------------------------------------------------------- | |
4323 | // Delete LUT for storing material for each prolonged track | |
4324 | //----------------------------------------------------------------- | |
4325 | if(fxOverX0PipeTrks) { | |
4326 | delete [] fxOverX0PipeTrks; fxOverX0PipeTrks = 0; | |
4327 | } | |
4328 | if(fxOverX0ShieldTrks) { | |
4329 | delete [] fxOverX0ShieldTrks; fxOverX0ShieldTrks = 0; | |
4330 | } | |
4331 | ||
4332 | if(fxOverX0LayerTrks) { | |
4333 | delete [] fxOverX0LayerTrks; fxOverX0LayerTrks = 0; | |
4334 | } | |
4335 | if(fxTimesRhoPipeTrks) { | |
4336 | delete [] fxTimesRhoPipeTrks; fxTimesRhoPipeTrks = 0; | |
4337 | } | |
4338 | if(fxTimesRhoShieldTrks) { | |
4339 | delete [] fxTimesRhoShieldTrks; fxTimesRhoShieldTrks = 0; | |
4340 | } | |
4341 | if(fxTimesRhoLayerTrks) { | |
4342 | delete [] fxTimesRhoLayerTrks; fxTimesRhoLayerTrks = 0; | |
4343 | } | |
4344 | return; | |
4345 | } | |
4346 | //------------------------------------------------------------------------ | |
4347 | void AliITStrackerMI::SetForceSkippingOfLayer() { | |
4348 | //----------------------------------------------------------------- | |
4349 | // Check if we are forced to skip layers | |
4350 | // either we set to skip them in RecoParam | |
4351 | // or they were off during data-taking | |
4352 | //----------------------------------------------------------------- | |
4353 | ||
4354 | const AliEventInfo *eventInfo = GetEventInfo(); | |
4355 | ||
4356 | for(Int_t l=0; l<AliITSgeomTGeo::kNLayers; l++) { | |
4357 | fForceSkippingOfLayer[l] = 0; | |
4358 | // check reco param | |
4359 | if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(l)) fForceSkippingOfLayer[l] = 1; | |
4360 | // check run info | |
4361 | ||
4362 | if(eventInfo && | |
4363 | AliITSReconstructor::GetRecoParam()->GetSkipSubdetsNotInTriggerCluster()) { | |
4364 | AliDebug(2,Form("GetEventInfo->GetTriggerCluster: %s",eventInfo->GetTriggerCluster())); | |
4365 | if(l==0 || l==1) { | |
4366 | if(!strstr(eventInfo->GetTriggerCluster(),"ITSSPD")) fForceSkippingOfLayer[l] = 1; | |
4367 | } else if(l==2 || l==3) { | |
4368 | if(!strstr(eventInfo->GetTriggerCluster(),"ITSSDD")) fForceSkippingOfLayer[l] = 1; | |
4369 | } else { | |
4370 | if(!strstr(eventInfo->GetTriggerCluster(),"ITSSSD")) fForceSkippingOfLayer[l] = 1; | |
4371 | } | |
4372 | } | |
4373 | } | |
4374 | return; | |
4375 | } | |
4376 | //------------------------------------------------------------------------ | |
4377 | Int_t AliITStrackerMI::CheckSkipLayer(const AliITStrackMI *track, | |
4378 | Int_t ilayer,Int_t idet) const { | |
4379 | //----------------------------------------------------------------- | |
4380 | // This method is used to decide whether to allow a prolongation | |
4381 | // without clusters, because we want to skip the layer. | |
4382 | // In this case the return value is > 0: | |
4383 | // return 1: the user requested to skip a layer | |
4384 | // return 2: track outside z acceptance | |
4385 | //----------------------------------------------------------------- | |
4386 | ||
4387 | if (ForceSkippingOfLayer(ilayer)) return 1; | |
4388 | ||
4389 | Int_t innerLayCanSkip=0; // was 2, changed on 05.11.2009 | |
4390 | ||
4391 | if (idet<0 && // out in z | |
4392 | ilayer>innerLayCanSkip && | |
4393 | AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance()) { | |
4394 | // check if track will cross SPD outer layer | |
4395 | Double_t phiAtSPD2,zAtSPD2; | |
4396 | if (track->GetPhiZat(fgLayers[1].GetR(),phiAtSPD2,zAtSPD2)) { | |
4397 | if (TMath::Abs(zAtSPD2)<2.*AliITSRecoParam::GetSPDdetzlength()) return 2; | |
4398 | } | |
4399 | return 2; // always allow skipping, changed on 05.11.2009 | |
4400 | } | |
4401 | ||
4402 | return 0; | |
4403 | } | |
4404 | //------------------------------------------------------------------------ | |
4405 | Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track, | |
4406 | Int_t ilayer,Int_t idet, | |
4407 | Double_t dz,Double_t dy, | |
4408 | Bool_t noClusters) const { | |
4409 | //----------------------------------------------------------------- | |
4410 | // This method is used to decide whether to allow a prolongation | |
4411 | // without clusters, because there is a dead zone in the road. | |
4412 | // In this case the return value is > 0: | |
4413 | // return 1: dead zone at z=0,+-7cm in SPD | |
4414 | // This method assumes that fSPDdetzcentre is ordered from -z to +z | |
4415 | // return 2: all road is "bad" (dead or noisy) from the OCDB | |
4416 | // return 3: at least a chip is "bad" (dead or noisy) from the OCDB | |
4417 | // return 4: at least a single channel is "bad" (dead or noisy) from the OCDB | |
4418 | //----------------------------------------------------------------- | |
4419 | ||
4420 | // check dead zones at z=0,+-7cm in the SPD | |
4421 | if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) { | |
4422 | Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4423 | fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4424 | fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()}; | |
4425 | Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4426 | fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(), | |
4427 | fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()}; | |
4428 | for (Int_t i=0; i<3; i++) | |
4429 | if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) { | |
4430 | AliDebug(2,Form("crack SPD %d track z %f %f %f %f\n",ilayer,track->GetZ(),dz,zmaxdead[i],zmindead[i])); | |
4431 | if (GetSPDDeadZoneProbability(track->GetZ(),TMath::Sqrt(track->GetSigmaZ2()))>0.1) return 1; | |
4432 | } | |
4433 | } | |
4434 | ||
4435 | // check bad zones from OCDB | |
4436 | if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0; | |
4437 | ||
4438 | if (idet<0) return 0; | |
4439 | ||
4440 | AliITSdetector &det=fgLayers[ilayer].GetDetector(idet); | |
4441 | ||
4442 | Int_t detType=-1; | |
4443 | Float_t detSizeFactorX=0.0001,detSizeFactorZ=0.0001; | |
4444 | if (ilayer==0 || ilayer==1) { // ---------- SPD | |
4445 | detType = 0; | |
4446 | } else if (ilayer==2 || ilayer==3) { // ---------- SDD | |
4447 | detType = 1; | |
4448 | detSizeFactorX *= 2.; | |
4449 | } else if (ilayer==4 || ilayer==5) { // ---------- SSD | |
4450 | detType = 2; | |
4451 | } | |
4452 | AliITSsegmentation *segm = (AliITSsegmentation*)fkDetTypeRec->GetSegmentationModel(detType); | |
4453 | if (detType==2) segm->SetLayer(ilayer+1); | |
4454 | Float_t detSizeX = detSizeFactorX*segm->Dx(); | |
4455 | Float_t detSizeZ = detSizeFactorZ*segm->Dz(); | |
4456 | ||
4457 | // check if the road overlaps with bad chips | |
4458 | Float_t xloc,zloc; | |
4459 | LocalModuleCoord(ilayer,idet,track,xloc,zloc); | |
4460 | Float_t zlocmin = zloc-dz; | |
4461 | Float_t zlocmax = zloc+dz; | |
4462 | Float_t xlocmin = xloc-dy; | |
4463 | Float_t xlocmax = xloc+dy; | |
4464 | Int_t chipsInRoad[100]; | |
4465 | ||
4466 | // check if road goes out of detector | |
4467 | Bool_t touchNeighbourDet=kFALSE; | |
4468 | if (TMath::Abs(xlocmin)>0.5*detSizeX) {xlocmin=-0.4999*detSizeX; touchNeighbourDet=kTRUE;} | |
4469 | if (TMath::Abs(xlocmax)>0.5*detSizeX) {xlocmax=+0.4999*detSizeX; touchNeighbourDet=kTRUE;} | |
4470 | if (TMath::Abs(zlocmin)>0.5*detSizeZ) {zlocmin=-0.4999*detSizeZ; touchNeighbourDet=kTRUE;} | |
4471 | if (TMath::Abs(zlocmax)>0.5*detSizeZ) {zlocmax=+0.4999*detSizeZ; touchNeighbourDet=kTRUE;} | |
4472 | 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)); | |
4473 | ||
4474 | // check if this detector is bad | |
4475 | if (det.IsBad()) { | |
4476 | AliDebug(2,Form("lay %d bad detector %d",ilayer,idet)); | |
4477 | if(!touchNeighbourDet) { | |
4478 | return 2; // all detectors in road are bad | |
4479 | } else { | |
4480 | return 3; // at least one is bad | |
4481 | } | |
4482 | } | |
4483 | ||
4484 | Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax); | |
4485 | AliDebug(2,Form("lay %d nChipsInRoad %d",ilayer,nChipsInRoad)); | |
4486 | if (!nChipsInRoad) return 0; | |
4487 | ||
4488 | Bool_t anyBad=kFALSE,anyGood=kFALSE; | |
4489 | for (Int_t iCh=0; iCh<nChipsInRoad; iCh++) { | |
4490 | if (chipsInRoad[iCh]<0 || chipsInRoad[iCh]>det.GetNChips()-1) continue; | |
4491 | AliDebug(2,Form(" chip %d bad %d",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh]))); | |
4492 | if (det.IsChipBad(chipsInRoad[iCh])) { | |
4493 | anyBad=kTRUE; | |
4494 | } else { | |
4495 | anyGood=kTRUE; | |
4496 | } | |
4497 | } | |
4498 | ||
4499 | if (!anyGood) { | |
4500 | if(!touchNeighbourDet) { | |
4501 | AliDebug(2,"all bad in road"); | |
4502 | return 2; // all chips in road are bad | |
4503 | } else { | |
4504 | return 3; // at least a bad chip in road | |
4505 | } | |
4506 | } | |
4507 | ||
4508 | if (anyBad) { | |
4509 | AliDebug(2,"at least a bad in road"); | |
4510 | return 3; // at least a bad chip in road | |
4511 | } | |
4512 | ||
4513 | ||
4514 | if (!AliITSReconstructor::GetRecoParam()->GetUseSingleBadChannelsFromOCDB() | |
4515 | || !noClusters) return 0; | |
4516 | ||
4517 | // There are no clusters in road: check if there is at least | |
4518 | // a bad SPD pixel or SDD anode or SSD strips on both sides | |
4519 | ||
4520 | Int_t idetInITS=idet; | |
4521 | for(Int_t l=0;l<ilayer;l++) idetInITS+=AliITSgeomTGeo::GetNLadders(l+1)*AliITSgeomTGeo::GetNDetectors(l+1); | |
4522 | ||
4523 | if (fITSChannelStatus->AnyBadInRoad(idetInITS,zlocmin,zlocmax,xlocmin,xlocmax)) { | |
4524 | AliDebug(2,Form("Bad channel in det %d of layer %d\n",idet,ilayer)); | |
4525 | return 4; | |
4526 | } | |
4527 | //if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3; | |
4528 | ||
4529 | return 0; | |
4530 | } | |
4531 | //------------------------------------------------------------------------ | |
4532 | Bool_t AliITStrackerMI::LocalModuleCoord(Int_t ilayer,Int_t idet, | |
4533 | const AliITStrackMI *track, | |
4534 | Float_t &xloc,Float_t &zloc) const { | |
4535 | //----------------------------------------------------------------- | |
4536 | // Gives position of track in local module ref. frame | |
4537 | //----------------------------------------------------------------- | |
4538 | ||
4539 | xloc=0.; | |
4540 | zloc=0.; | |
4541 | ||
4542 | if(idet<0) return kTRUE; // track out of z acceptance of layer | |
4543 | ||
4544 | Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6 | |
4545 | ||
4546 | Int_t lad = Int_t(idet/ndet) + 1; | |
4547 | ||
4548 | Int_t det = idet - (lad-1)*ndet + 1; | |
4549 | ||
4550 | Double_t xyzGlob[3],xyzLoc[3]; | |
4551 | ||
4552 | AliITSdetector &detector = fgLayers[ilayer].GetDetector(idet); | |
4553 | // take into account the misalignment: xyz at real detector plane | |
4554 | if(!track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob)) return kFALSE; | |
4555 | ||
4556 | if(!AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc)) return kFALSE; | |
4557 | ||
4558 | xloc = (Float_t)xyzLoc[0]; | |
4559 | zloc = (Float_t)xyzLoc[2]; | |
4560 | ||
4561 | return kTRUE; | |
4562 | } | |
4563 | //------------------------------------------------------------------------ | |
4564 | Bool_t AliITStrackerMI::IsOKForPlaneEff(const AliITStrackMI* track, const Int_t *clusters, Int_t ilayer) const { | |
4565 | // | |
4566 | // Method to be optimized further: | |
4567 | // Aim: decide whether a track can be used for PlaneEff evaluation | |
4568 | // the decision is taken based on the track quality at the layer under study | |
4569 | // no information on the clusters on this layer has to be used | |
4570 | // The criterium is to reject tracks at boundaries between basic block (e.g. SPD chip) | |
4571 | // the cut is done on number of sigmas from the boundaries | |
4572 | // | |
4573 | // Input: Actual track, layer [0,5] under study | |
4574 | // Output: none | |
4575 | // Return: kTRUE if this is a good track | |
4576 | // | |
4577 | // it will apply a pre-selection to obtain good quality tracks. | |
4578 | // Here also you will have the possibility to put a control on the | |
4579 | // impact point of the track on the basic block, in order to exclude border regions | |
4580 | // this will be done by calling a proper method of the AliITSPlaneEff class. | |
4581 | // | |
4582 | // input: AliITStrackMI* track, ilayer= layer number [0,5] | |
4583 | // return: Bool_t -> kTRUE if usable track, kFALSE if not usable. | |
4584 | // | |
4585 | Int_t index[AliITSgeomTGeo::kNLayers]; | |
4586 | Int_t k; | |
4587 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1; | |
4588 | // | |
4589 | for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) { | |
4590 | index[k]=clusters[k]; | |
4591 | } | |
4592 | ||
4593 | if(!fPlaneEff) | |
4594 | {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;} | |
4595 | AliITSlayer &layer=fgLayers[ilayer]; | |
4596 | Double_t r=layer.GetR(); | |
4597 | AliITStrackMI tmp(*track); | |
4598 | ||
4599 | // require a minimal number of cluster in other layers and eventually clusters in closest layers | |
4600 | Int_t ncl_out=0; Int_t ncl_in=0; | |
4601 | for(Int_t lay=AliITSgeomTGeo::kNLayers-1;lay>ilayer;lay--) { // count n. of cluster in outermost layers | |
4602 | AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay, | |
4603 | tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ; | |
4604 | if (tmp.GetClIndex(lay)>=0) ncl_out++; | |
4605 | } | |
4606 | for(Int_t lay=ilayer-1; lay>=0;lay--) { // count n. of cluster in innermost layers | |
4607 | AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay, | |
4608 | tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ; | |
4609 | if (tmp.GetClIndex(lay)>=0) ncl_in++; | |
4610 | } | |
4611 | Int_t ncl=ncl_out+ncl_out; | |
4612 | Bool_t nextout = kFALSE; | |
4613 | if(ilayer==AliITSgeomTGeo::kNLayers-1) nextout=kTRUE; // you are already on the outermost layer | |
4614 | else nextout = ((tmp.GetClIndex(ilayer+1)>=0)? kTRUE : kFALSE ); | |
4615 | Bool_t nextin = kFALSE; | |
4616 | if(ilayer==0) nextin=kTRUE; // you are already on the innermost layer | |
4617 | else nextin = ((index[ilayer-1]>=0)? kTRUE : kFALSE ); | |
4618 | // maximum number of missing clusters allowed in outermost layers | |
4619 | if(ncl_out<AliITSgeomTGeo::kNLayers-(ilayer+1)-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersOutPlaneEff()) | |
4620 | return kFALSE; | |
4621 | // maximum number of missing clusters allowed (both in innermost and in outermost layers) | |
4622 | if(ncl<AliITSgeomTGeo::kNLayers-1-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersPlaneEff()) | |
4623 | return kFALSE; | |
4624 | if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInOuterLayerPlaneEff() && !nextout) return kFALSE; | |
4625 | if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInInnerLayerPlaneEff() && !nextin) return kFALSE; | |
4626 | if(tmp.Pt() < AliITSReconstructor::GetRecoParam()->GetMinPtPlaneEff()) return kFALSE; | |
4627 | // if(AliITSReconstructor::GetRecoParam()->GetOnlyConstraintPlaneEff() && !tmp.GetConstrain()) return kFALSE; | |
4628 | ||
4629 | // detector number | |
4630 | Double_t phi,z; | |
4631 | if (!tmp.GetPhiZat(r,phi,z)) return kFALSE; | |
4632 | Int_t idet=layer.FindDetectorIndex(phi,z); | |
4633 | if(idet<0) { AliInfo(Form("cannot find detector")); | |
4634 | return kFALSE;} | |
4635 | ||
4636 | // here check if it has good Chi Square. | |
4637 | ||
4638 | //propagate to the intersection with the detector plane | |
4639 | const AliITSdetector &det=layer.GetDetector(idet); | |
4640 | if (!tmp.Propagate(det.GetPhi(),det.GetR())) return kFALSE; | |
4641 | ||
4642 | Float_t locx; // | |
4643 | Float_t locz; // | |
4644 | if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return kFALSE; | |
4645 | UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz); | |
4646 | if(key>fPlaneEff->Nblock()) return kFALSE; | |
4647 | Float_t blockXmn,blockXmx,blockZmn,blockZmx; | |
4648 | if (!fPlaneEff->GetBlockBoundaries(key,blockXmn,blockXmx,blockZmn,blockZmx)) return kFALSE; | |
4649 | //*************** | |
4650 | // DEFINITION OF SEARCH ROAD FOR accepting a track | |
4651 | // | |
4652 | //For the time being they are hard-wired, later on from AliITSRecoParam | |
4653 | Double_t nsigx=AliITSReconstructor::GetRecoParam()->GetNSigXFromBoundaryPlaneEff(); | |
4654 | Double_t nsigz=AliITSReconstructor::GetRecoParam()->GetNSigZFromBoundaryPlaneEff(); | |
4655 | // Double_t nsigz=4; | |
4656 | // Double_t nsigx=4; | |
4657 | Double_t dx=nsigx*TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system | |
4658 | Double_t dz=nsigz*TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is | |
4659 | // done for RecPoints | |
4660 | ||
4661 | // exclude tracks at boundary between detectors | |
4662 | //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidthPlaneEff(); | |
4663 | Double_t boundaryWidth=0; // for the time being hard-wired, later on from AliITSRecoParam | |
4664 | AliDebug(2,Form("Tracking: track impact x=%f, y=%f, z=%f",tmp.GetX(), tmp.GetY(), tmp.GetZ())); | |
4665 | AliDebug(2,Form("Local: track impact x=%f, z=%f",locx,locz)); | |
4666 | AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dx,dz)); | |
4667 | ||
4668 | if ( (locx-dx < blockXmn+boundaryWidth) || | |
4669 | (locx+dx > blockXmx-boundaryWidth) || | |
4670 | (locz-dz < blockZmn+boundaryWidth) || | |
4671 | (locz+dz > blockZmx-boundaryWidth) ) return kFALSE; | |
4672 | return kTRUE; | |
4673 | } | |
4674 | //------------------------------------------------------------------------ | |
4675 | void AliITStrackerMI::UseTrackForPlaneEff(const AliITStrackMI* track, Int_t ilayer) { | |
4676 | // | |
4677 | // This Method has to be optimized! For the time-being it uses the same criteria | |
4678 | // as those used in the search of extra clusters for overlapping modules. | |
4679 | // | |
4680 | // Method Purpose: estabilish whether a track has produced a recpoint or not | |
4681 | // in the layer under study (For Plane efficiency) | |
4682 | // | |
4683 | // inputs: AliITStrackMI* track (pointer to a usable track) | |
4684 | // outputs: none | |
4685 | // side effects: update (by 1 count) the Plane Efficiency statistics of the basic block | |
4686 | // traversed by this very track. In details: | |
4687 | // - if a cluster can be associated to the track then call | |
4688 | // AliITSPlaneEff::UpDatePlaneEff(key,kTRUE); | |
4689 | // - if not, the AliITSPlaneEff::UpDatePlaneEff(key,kFALSE) is called | |
4690 | // | |
4691 | if(!fPlaneEff) | |
4692 | {AliWarning("UseTrackForPlaneEff: null pointer to AliITSPlaneEff"); return;} | |
4693 | AliITSlayer &layer=fgLayers[ilayer]; | |
4694 | Double_t r=layer.GetR(); | |
4695 | AliITStrackMI tmp(*track); | |
4696 | ||
4697 | // detector number | |
4698 | Double_t phi,z; | |
4699 | if (!tmp.GetPhiZat(r,phi,z)) return; | |
4700 | Int_t idet=layer.FindDetectorIndex(phi,z); | |
4701 | ||
4702 | if(idet<0) { AliInfo(Form("cannot find detector")); | |
4703 | return;} | |
4704 | ||
4705 | ||
4706 | //propagate to the intersection with the detector plane | |
4707 | const AliITSdetector &det=layer.GetDetector(idet); | |
4708 | if (!tmp.Propagate(det.GetPhi(),det.GetR())) return; | |
4709 | ||
4710 | ||
4711 | //*************** | |
4712 | // DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION | |
4713 | // | |
4714 | Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()* | |
4715 | TMath::Sqrt(tmp.GetSigmaZ2() + | |
4716 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4717 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4718 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer)); | |
4719 | Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()* | |
4720 | TMath::Sqrt(tmp.GetSigmaY2() + | |
4721 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4722 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4723 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer)); | |
4724 | ||
4725 | // road in global (rphi,z) [i.e. in tracking ref. system] | |
4726 | Double_t zmin = tmp.GetZ() - dz; | |
4727 | Double_t zmax = tmp.GetZ() + dz; | |
4728 | Double_t ymin = tmp.GetY() + r*det.GetPhi() - dy; | |
4729 | Double_t ymax = tmp.GetY() + r*det.GetPhi() + dy; | |
4730 | ||
4731 | // select clusters in road | |
4732 | layer.SelectClusters(zmin,zmax,ymin,ymax); | |
4733 | ||
4734 | // Define criteria for track-cluster association | |
4735 | Double_t msz = tmp.GetSigmaZ2() + | |
4736 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4737 | AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()* | |
4738 | AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer); | |
4739 | Double_t msy = tmp.GetSigmaY2() + | |
4740 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4741 | AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()* | |
4742 | AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer); | |
4743 | if (tmp.GetConstrain()) { | |
4744 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC(); | |
4745 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC(); | |
4746 | } else { | |
4747 | msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC(); | |
4748 | msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC(); | |
4749 | } | |
4750 | msz = 1./msz; // 1/RoadZ^2 | |
4751 | msy = 1./msy; // 1/RoadY^2 | |
4752 | // | |
4753 | ||
4754 | const AliITSRecPoint *cl=0; Int_t clidx=-1, ci=-1; | |
4755 | Int_t idetc=-1; | |
4756 | Double_t chi2trkcl=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(); | |
4757 | //Double_t tolerance=0.2; | |
4758 | /*while ((cl=layer.GetNextCluster(clidx))!=0) { | |
4759 | idetc = cl->GetDetectorIndex(); | |
4760 | if(idet!=idetc) continue; | |
4761 | //Int_t ilay = cl->GetLayer(); | |
4762 | ||
4763 | if (TMath::Abs(tmp.GetZ() - cl->GetZ()) > tolerance) continue; | |
4764 | if (TMath::Abs(tmp.GetY() - cl->GetY()) > tolerance) continue; | |
4765 | ||
4766 | Double_t chi2=tmp.GetPredictedChi2(cl); | |
4767 | if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } | |
4768 | }*/ | |
4769 | Float_t locx; // | |
4770 | Float_t locz; // | |
4771 | if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return; | |
4772 | // | |
4773 | AliDebug(2,Form("ilayer= %d, idet=%d, x= %f, z=%f",ilayer,idet,locx,locz)); | |
4774 | UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz); | |
4775 | if(key>fPlaneEff->Nblock()) return; | |
4776 | Bool_t found=kFALSE; | |
4777 | //if (ci>=0) { | |
4778 | Double_t chi2; | |
4779 | while ((cl=layer.GetNextCluster(clidx))!=0) { | |
4780 | idetc = cl->GetDetectorIndex(); | |
4781 | if(idet!=idetc) continue; | |
4782 | // here real control to see whether the cluster can be associated to the track. | |
4783 | // cluster not associated to track | |
4784 | if ( (tmp.GetZ()-cl->GetZ())*(tmp.GetZ()-cl->GetZ())*msz + | |
4785 | (tmp.GetY()-cl->GetY())*(tmp.GetY()-cl->GetY())*msy > 1. ) continue; | |
4786 | // calculate track-clusters chi2 | |
4787 | chi2 = GetPredictedChi2MI(&tmp,cl,ilayer); // note that this method change track tmp | |
4788 | // in particular, the error associated to the cluster | |
4789 | //Double_t chi2 = tmp.GetPredictedChi(cl); // this method does not change track tmp | |
4790 | // chi2 cut | |
4791 | if (chi2 > AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) continue; | |
4792 | found=kTRUE; | |
4793 | if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } // this just to trace which cluster is selected | |
4794 | // track->SetExtraCluster(ilayer,(ilayer<<28)+ci); | |
4795 | // track->SetExtraModule(ilayer,idetExtra); | |
4796 | } | |
4797 | if(!fPlaneEff->UpDatePlaneEff(found,key)) | |
4798 | AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for key=%d",key)); | |
4799 | if(fPlaneEff->GetCreateHistos()&& AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) { | |
4800 | Float_t tr[4]={99999.,99999.,9999.,9999.}; // initialize to high values | |
4801 | Float_t clu[4]={-99999.,-99999.,9999.,9999.}; // (in some cases GetCov fails) | |
4802 | Int_t cltype[2]={-999,-999}; | |
4803 | ||
4804 | tr[0]=locx; | |
4805 | tr[1]=locz; | |
4806 | tr[2]=TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system | |
4807 | tr[3]=TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is | |
4808 | ||
4809 | if (found){ | |
4810 | clu[0]=layer.GetCluster(ci)->GetDetLocalX(); | |
4811 | clu[1]=layer.GetCluster(ci)->GetDetLocalZ(); | |
4812 | cltype[0]=layer.GetCluster(ci)->GetNy(); | |
4813 | cltype[1]=layer.GetCluster(ci)->GetNz(); | |
4814 | ||
4815 | // Without the following 6 lines you would retrieve the nominal error of a cluster (e.g. for the SPD: | |
4816 | // X->50/sqrt(12)=14 micron Z->450/sqrt(12)= 120 micron) | |
4817 | // Within AliTrackerMI/AliTrackMI the error on the cluster is associated to the AliITStrackMI (fSigmaY,Z) | |
4818 | // It is computed properly by calling the method | |
4819 | // AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer) | |
4820 | // T | |
4821 | //Double_t x=0.5*(tmp.GetX()+layer.GetCluster(ci)->GetX()); // Take into account the mis-alignment | |
4822 | //if (tmp.PropagateTo(x,0.,0.)) { | |
4823 | chi2=GetPredictedChi2MI(&tmp,layer.GetCluster(ci),ilayer); | |
4824 | AliCluster c(*layer.GetCluster(ci)); | |
4825 | c.SetSigmaY2(tmp.GetSigmaY(ilayer)*tmp.GetSigmaY(ilayer)); | |
4826 | c.SetSigmaZ2(tmp.GetSigmaZ(ilayer)*tmp.GetSigmaZ(ilayer)); | |
4827 | //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors | |
4828 | clu[2]=TMath::Sqrt(c.GetSigmaY2()); | |
4829 | clu[3]=TMath::Sqrt(c.GetSigmaZ2()); | |
4830 | //} | |
4831 | } | |
4832 | fPlaneEff->FillHistos(key,found,tr,clu,cltype); | |
4833 | } | |
4834 | return; | |
4835 | } | |
4836 |