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Complete implementation of pools, see #88914. From rev. 53550,53557,53568 (Ruben)
[u/mrichter/AliRoot.git] / ITS / AliITStrackerMI.cxx
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e43c066c 1/**************************************************************************
9a5326b1 2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
e43c066c 3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
fddf8459 15/* $Id$ */
bf6adc12 16
e43c066c 17//-------------------------------------------------------------------------
18// Implementation of the ITS tracker class
00a7cc50 19// It reads AliITSRecPoint clusters and creates AliITStrackMI tracks
e43c066c 20// and fills with them the ESD
15dd636f 21// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
23197852 22// Current support and development:
23// Andrea Dainese, andrea.dainese@lnl.infn.it
afd25725 24// dE/dx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
25// Params moved to AliITSRecoParam by: Andrea Dainese, INFN
26// Material budget from TGeo by: Ludovic Gaudichet & Andrea Dainese, INFN
e43c066c 27//-------------------------------------------------------------------------
bf6adc12 28
29#include <TMatrixD.h>
e43c066c 30#include <TTree.h>
afd25725 31#include <TDatabasePDG.h>
9a5326b1 32#include <TString.h>
e50912db 33#include <TRandom.h>
a70ed6ad 34#include <TTreeStream.h>
879cdb02 35#include <TVector3.h>
1f1e7832 36#include <TBits.h>
bf6adc12 37
4187a601 38#include "AliLog.h"
88e3c173 39#include "AliGeomManager.h"
a70ed6ad 40#include "AliITSPlaneEff.h"
a70ed6ad 41#include "AliTrackPointArray.h"
af885e0f 42#include "AliESDEvent.h"
5c6a2470 43#include "AliESDV0Params.h"
aad72f45 44#include "AliESDtrack.h"
6c94f330 45#include "AliV0.h"
a70ed6ad 46#include "AliITSChannelStatus.h"
47#include "AliITSDetTypeRec.h"
00a7cc50 48#include "AliITSRecPoint.h"
2b295109 49#include "AliITSRecPointContainer.h"
e341247d 50#include "AliITSgeomTGeo.h"
44347160 51#include "AliITSReconstructor.h"
572f41f9 52#include "AliITSClusterParam.h"
23197852 53#include "AliITSsegmentation.h"
54#include "AliITSCalibration.h"
7167ae53 55#include "AliITSPlaneEffSPD.h"
56#include "AliITSPlaneEffSDD.h"
57#include "AliITSPlaneEffSSD.h"
44396017 58#include "AliITSV0Finder.h"
ae00569a 59#include "AliITStrackerMI.h"
bb7e41dd 60#include "AliMathBase.h"
e546b023 61#include "AliClonesPool.h"
62#include "AliPoolsSet.h"
e43c066c 63
a4354152 64
e43c066c 65ClassImp(AliITStrackerMI)
e43c066c 66
e50912db 67AliITStrackerMI::AliITSlayer AliITStrackerMI::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers
44347160 68
8221b41b 69AliITStrackerMI::AliITStrackerMI():AliTracker(),
70fI(0),
71fBestTrack(),
72fTrackToFollow(),
73fTrackHypothesys(),
74fBestHypothesys(),
75fOriginal(),
76fCurrentEsdTrack(),
77fPass(0),
78fAfterV0(kFALSE),
79fLastLayerToTrackTo(0),
afd25725 80fCoefficients(0),
8221b41b 81fEsd(0),
e50912db 82fTrackingPhase("Default"),
6518a6c5 83fUseTGeo(3),
e50912db 84fNtracks(0),
a4354152 85fFlagFakes(kFALSE),
86fSelectBestMIP03(kFALSE),
87fUseImproveKalman(kFALSE),
e50912db 88fxOverX0Pipe(-1.),
89fxTimesRhoPipe(-1.),
90fxOverX0PipeTrks(0),
91fxTimesRhoPipeTrks(0),
92fxOverX0ShieldTrks(0),
93fxTimesRhoShieldTrks(0),
94fxOverX0LayerTrks(0),
95fxTimesRhoLayerTrks(0),
4a66240a 96fDebugStreamer(0),
23197852 97fITSChannelStatus(0),
a70ed6ad 98fkDetTypeRec(0),
4336faa4 99fPlaneEff(0),
1f1e7832 100fSPDChipIntPlaneEff(0),
4336faa4 101fITSPid(0)
102
103 {
8221b41b 104 //Default constructor
e50912db 105 Int_t i;
106 for(i=0;i<4;i++) fSPDdetzcentre[i]=0.;
225cff59 107 for(i=0;i<2;i++) {
108 fxOverX0Shield[i]=-1.;
109 fxTimesRhoShield[i]=-1.;
110 fConstraint[i]=0;
111 }
e50912db 112 for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
a0b53cc4 113 fOriginal.SetOwner();
225cff59 114 for(i=0;i<AliITSgeomTGeo::kNLayers;i++)fForceSkippingOfLayer[i]=0;
115 for(i=0;i<100000;i++)fBestTrackIndex[i]=0;
4336faa4 116 fITSPid=new AliITSPIDResponse();
225cff59 117
8221b41b 118}
44347160 119//------------------------------------------------------------------------
1f3e997f 120AliITStrackerMI::AliITStrackerMI(const Char_t *geom) : AliTracker(),
e50912db 121fI(AliITSgeomTGeo::GetNLayers()),
8221b41b 122fBestTrack(),
123fTrackToFollow(),
124fTrackHypothesys(),
125fBestHypothesys(),
126fOriginal(),
127fCurrentEsdTrack(),
128fPass(0),
129fAfterV0(kFALSE),
e50912db 130fLastLayerToTrackTo(AliITSRecoParam::GetLastLayerToTrackTo()),
afd25725 131fCoefficients(0),
8221b41b 132fEsd(0),
e50912db 133fTrackingPhase("Default"),
6518a6c5 134fUseTGeo(3),
e50912db 135fNtracks(0),
a4354152 136fFlagFakes(kFALSE),
137fSelectBestMIP03(kFALSE),
138fUseImproveKalman(kFALSE),
e50912db 139fxOverX0Pipe(-1.),
140fxTimesRhoPipe(-1.),
141fxOverX0PipeTrks(0),
142fxTimesRhoPipeTrks(0),
143fxOverX0ShieldTrks(0),
144fxTimesRhoShieldTrks(0),
145fxOverX0LayerTrks(0),
146fxTimesRhoLayerTrks(0),
4a66240a 147fDebugStreamer(0),
23197852 148fITSChannelStatus(0),
a70ed6ad 149fkDetTypeRec(0),
4336faa4 150fPlaneEff(0),
1f1e7832 151fSPDChipIntPlaneEff(0),
4336faa4 152fITSPid(0) {
e43c066c 153 //--------------------------------------------------------------------
154 //This is the AliITStrackerMI constructor
155 //--------------------------------------------------------------------
e341247d 156 if (geom) {
157 AliWarning("\"geom\" is actually a dummy argument !");
158 }
159
a0b53cc4 160 fOriginal.SetOwner();
afd25725 161 fCoefficients = 0;
628e7bb0 162 fAfterV0 = kFALSE;
e341247d 163
e50912db 164 for (Int_t i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
e341247d 165 Int_t nlad=AliITSgeomTGeo::GetNLadders(i);
166 Int_t ndet=AliITSgeomTGeo::GetNDetectors(i);
167
168 Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z=xyz[2];
bf1cd124 169 AliITSgeomTGeo::GetTranslation(i,1,1,xyz);
e43c066c 170 Double_t poff=TMath::ATan2(y,x);
171 Double_t zoff=z;
bf1cd124 172
173 AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz);
e341247d 174 Double_t r=TMath::Sqrt(x*x + y*y);
e43c066c 175
e341247d 176 AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz);
e43c066c 177 r += TMath::Sqrt(x*x + y*y);
e341247d 178 AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz);
e43c066c 179 r += TMath::Sqrt(x*x + y*y);
e341247d 180 AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz);
e43c066c 181 r += TMath::Sqrt(x*x + y*y);
182 r*=0.25;
183
184 new (fgLayers+i-1) AliITSlayer(r,poff,zoff,nlad,ndet);
185
186 for (Int_t j=1; j<nlad+1; j++) {
187 for (Int_t k=1; k<ndet+1; k++) { //Fill this layer with detectors
e341247d 188 TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m);
1f3e997f 189 const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k);
190 m.Multiply(tm);
a5d0fae6 191 Double_t txyz[3]={0.};
192 xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
1f3e997f 193 m.LocalToMaster(txyz,xyz);
a5d0fae6 194 r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
1f3e997f 195 Double_t phi=TMath::ATan2(xyz[1],xyz[0]);
e341247d 196
197 if (phi<0) phi+=TMath::TwoPi();
198 else if (phi>=TMath::TwoPi()) phi-=TMath::TwoPi();
199
e43c066c 200 AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
201 new(&det) AliITSdetector(r,phi);
1c97ce2f 202 // compute the real radius (with misalignment)
203 TGeoHMatrix mmisal(*(AliITSgeomTGeo::GetMatrix(i,j,k)));
204 mmisal.Multiply(tm);
205 xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
206 mmisal.LocalToMaster(txyz,xyz);
207 Double_t rmisal=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
208 det.SetRmisal(rmisal);
209
23197852 210 } // end loop on detectors
211 } // end loop on ladders
9cd19c63 212 fForceSkippingOfLayer[i-1] = 0;
23197852 213 } // end loop on layers
e43c066c 214
e43c066c 215
e50912db 216 fI=AliITSgeomTGeo::GetNLayers();
e43c066c 217
218 fPass=0;
219 fConstraint[0]=1; fConstraint[1]=0;
220
afd25725 221 Double_t xyzVtx[]={AliITSReconstructor::GetRecoParam()->GetXVdef(),
222 AliITSReconstructor::GetRecoParam()->GetYVdef(),
223 AliITSReconstructor::GetRecoParam()->GetZVdef()};
224 Double_t ersVtx[]={AliITSReconstructor::GetRecoParam()->GetSigmaXVdef(),
225 AliITSReconstructor::GetRecoParam()->GetSigmaYVdef(),
226 AliITSReconstructor::GetRecoParam()->GetSigmaZVdef()};
227 SetVertex(xyzVtx,ersVtx);
e43c066c 228
e50912db 229 fLastLayerToTrackTo=AliITSRecoParam::GetLastLayerToTrackTo();
628e7bb0 230 for (Int_t i=0;i<100000;i++){
231 fBestTrackIndex[i]=0;
232 }
afd25725 233
234 // store positions of centre of SPD modules (in z)
bf1cd124 235 // The convetion is that fSPDdetzcentre is ordered from -z to +z
afd25725 236 Double_t tr[3];
c3fd826e 237 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
bf1cd124 238 if (tr[2]<0) { // old geom (up to v5asymmPPR)
239 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
240 fSPDdetzcentre[0] = tr[2];
241 AliITSgeomTGeo::GetTranslation(1,1,2,tr);
242 fSPDdetzcentre[1] = tr[2];
243 AliITSgeomTGeo::GetTranslation(1,1,3,tr);
244 fSPDdetzcentre[2] = tr[2];
245 AliITSgeomTGeo::GetTranslation(1,1,4,tr);
246 fSPDdetzcentre[3] = tr[2];
247 } else { // new geom (from v11Hybrid)
248 AliITSgeomTGeo::GetTranslation(1,1,4,tr);
249 fSPDdetzcentre[0] = tr[2];
250 AliITSgeomTGeo::GetTranslation(1,1,3,tr);
251 fSPDdetzcentre[1] = tr[2];
252 AliITSgeomTGeo::GetTranslation(1,1,2,tr);
253 fSPDdetzcentre[2] = tr[2];
254 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
255 fSPDdetzcentre[3] = tr[2];
256 }
afd25725 257
afd25725 258 fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker();
6518a6c5 259 if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) {
260 AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE");
261 fUseTGeo = 3;
262 }
e50912db 263
264 for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
265 for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
266
c0b60eb0 267 if (AliITSReconstructor::GetRecoParam()->GetESDV0Params()->StreamLevel()>0)
268 fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
81e97e0d 269
7167ae53 270 // only for plane efficiency evaluation
58e8dc31 271 if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
272 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0) {
0ed58a47 273 Int_t iplane=AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff();
1a64bda6 274 if(!AliITSReconstructor::GetRecoParam()->GetLayersToSkip(iplane)==1)
0ed58a47 275 AliWarning(Form("Evaluation of Plane Eff for layer %d will be attempted without removing it from tracker",iplane));
1f1e7832 276 if (iplane<2) {
277 fPlaneEff = new AliITSPlaneEffSPD();
278 fSPDChipIntPlaneEff = new Bool_t[AliITSPlaneEffSPD::kNModule*AliITSPlaneEffSPD::kNChip];
279 for (UInt_t i=0; i<AliITSPlaneEffSPD::kNModule*AliITSPlaneEffSPD::kNChip; i++) fSPDChipIntPlaneEff[i]=kFALSE;
280 }
0ed58a47 281 else if (iplane<4) fPlaneEff = new AliITSPlaneEffSDD();
282 else fPlaneEff = new AliITSPlaneEffSSD();
275a301c 283 if(AliITSReconstructor::GetRecoParam()->GetReadPlaneEffFromOCDB())
0ed58a47 284 if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;}
285 if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) fPlaneEff->SetCreateHistos(kTRUE);
7167ae53 286 }
a4354152 287 //
288 // RS
04315dad 289 fSelectBestMIP03 = kFALSE;//AliITSReconstructor::GetRecoParam()->GetSelectBestMIP03();
a4354152 290 fFlagFakes = AliITSReconstructor::GetRecoParam()->GetFlagFakes();
291 fUseImproveKalman = AliITSReconstructor::GetRecoParam()->GetUseImproveKalman();
292 //
4336faa4 293 fITSPid=new AliITSPIDResponse();
628e7bb0 294}
225cff59 295/*
44347160 296//------------------------------------------------------------------------
8221b41b 297AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker),
298fI(tracker.fI),
299fBestTrack(tracker.fBestTrack),
300fTrackToFollow(tracker.fTrackToFollow),
301fTrackHypothesys(tracker.fTrackHypothesys),
302fBestHypothesys(tracker.fBestHypothesys),
303fOriginal(tracker.fOriginal),
304fCurrentEsdTrack(tracker.fCurrentEsdTrack),
305fPass(tracker.fPass),
306fAfterV0(tracker.fAfterV0),
307fLastLayerToTrackTo(tracker.fLastLayerToTrackTo),
afd25725 308fCoefficients(tracker.fCoefficients),
8221b41b 309fEsd(tracker.fEsd),
e50912db 310fTrackingPhase(tracker.fTrackingPhase),
afd25725 311fUseTGeo(tracker.fUseTGeo),
e50912db 312fNtracks(tracker.fNtracks),
a4354152 313fFlagFakes(tracker.fFlagFakes),
314fSelectBestMIP03(tracker.fSelectBestMIP03),
e50912db 315fxOverX0Pipe(tracker.fxOverX0Pipe),
316fxTimesRhoPipe(tracker.fxTimesRhoPipe),
317fxOverX0PipeTrks(0),
318fxTimesRhoPipeTrks(0),
319fxOverX0ShieldTrks(0),
320fxTimesRhoShieldTrks(0),
321fxOverX0LayerTrks(0),
322fxTimesRhoLayerTrks(0),
4a66240a 323fDebugStreamer(tracker.fDebugStreamer),
23197852 324fITSChannelStatus(tracker.fITSChannelStatus),
a70ed6ad 325fkDetTypeRec(tracker.fkDetTypeRec),
ae00569a 326fPlaneEff(tracker.fPlaneEff) {
8221b41b 327 //Copy constructor
a0b53cc4 328 fOriginal.SetOwner();
e50912db 329 Int_t i;
330 for(i=0;i<4;i++) {
331 fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i];
332 }
333 for(i=0;i<6;i++) {
334 fxOverX0Layer[i]=tracker.fxOverX0Layer[i];
335 fxTimesRhoLayer[i]=tracker.fxTimesRhoLayer[i];
336 }
337 for(i=0;i<2;i++) {
338 fxOverX0Shield[i]=tracker.fxOverX0Shield[i];
339 fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i];
340 }
8221b41b 341}
225cff59 342
44347160 343//------------------------------------------------------------------------
8221b41b 344AliITStrackerMI & AliITStrackerMI::operator=(const AliITStrackerMI &tracker){
345 //Assignment operator
346 this->~AliITStrackerMI();
347 new(this) AliITStrackerMI(tracker);
348 return *this;
349}
225cff59 350*/
44347160 351//------------------------------------------------------------------------
628e7bb0 352AliITStrackerMI::~AliITStrackerMI()
353{
354 //
355 //destructor
356 //
e50912db 357 if (fCoefficients) delete [] fCoefficients;
358 DeleteTrksMaterialLUT();
81e97e0d 359 if (fDebugStreamer) {
360 //fDebugStreamer->Close();
361 delete fDebugStreamer;
362 }
23197852 363 if(fITSChannelStatus) delete fITSChannelStatus;
364 if(fPlaneEff) delete fPlaneEff;
4336faa4 365 if(fITSPid) delete fITSPid;
1f1e7832 366 if (fSPDChipIntPlaneEff) delete [] fSPDChipIntPlaneEff;
4336faa4 367
e43c066c 368}
44347160 369//------------------------------------------------------------------------
23197852 370void AliITStrackerMI::ReadBadFromDetTypeRec() {
371 //--------------------------------------------------------------------
372 //This function read ITS bad detectors, chips, channels from AliITSDetTypeRec
373 //i.e. from OCDB
374 //--------------------------------------------------------------------
375
376 if(!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return;
377
4187a601 378 Info("ReadBadFromDetTypeRec","Reading info about bad ITS detectors and channels");
23197852 379
a70ed6ad 380 if(!fkDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n");
23197852 381
382 // ITS channels map
383 if(fITSChannelStatus) delete fITSChannelStatus;
a70ed6ad 384 fITSChannelStatus = new AliITSChannelStatus(fkDetTypeRec);
23197852 385
386 // ITS detectors and chips
387 Int_t i=0,j=0,k=0,ndet=0;
388 for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
4187a601 389 Int_t nBadDetsPerLayer=0;
23197852 390 ndet=AliITSgeomTGeo::GetNDetectors(i);
391 for (j=1; j<AliITSgeomTGeo::GetNLadders(i)+1; j++) {
392 for (k=1; k<ndet+1; k++) {
393 AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
a70ed6ad 394 det.ReadBadDetectorAndChips(i-1,(j-1)*ndet + k-1,fkDetTypeRec);
4187a601 395 if(det.IsBad()) {nBadDetsPerLayer++;}
23197852 396 } // end loop on detectors
397 } // end loop on ladders
e9b15b0c 398 AliInfo(Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i)));
23197852 399 } // end loop on layers
400
401 return;
402}
403//------------------------------------------------------------------------
e43c066c 404Int_t AliITStrackerMI::LoadClusters(TTree *cTree) {
405 //--------------------------------------------------------------------
406 //This function loads ITS clusters
407 //--------------------------------------------------------------------
2b295109 408
409 TClonesArray *clusters = NULL;
410 AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance();
411 clusters=rpcont->FetchClusters(0,cTree);
9cd19c63 412 if(!clusters) return 1;
413
2b295109 414 if(!(rpcont->IsSPDActive() || rpcont->IsSDDActive() || rpcont->IsSSDActive())){
415 AliError("ITS is not in a known running configuration: SPD, SDD and SSD are not active");
416 return 1;
e43c066c 417 }
23197852 418 Int_t i=0,j=0,ndet=0;
e43c066c 419 Int_t detector=0;
23197852 420 for (i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
421 ndet=fgLayers[i].GetNdetectors();
e43c066c 422 Int_t jmax = j + fgLayers[i].GetNladders()*ndet;
423 for (; j<jmax; j++) {
2b295109 424 // if (!cTree->GetEvent(j)) continue;
425 clusters = rpcont->UncheckedGetClusters(j);
426 if(!clusters)continue;
e43c066c 427 Int_t ncl=clusters->GetEntriesFast();
428 SignDeltas(clusters,GetZ());
1f3e997f 429
e43c066c 430 while (ncl--) {
00a7cc50 431 AliITSRecPoint *c=(AliITSRecPoint*)clusters->UncheckedAt(ncl);
75fb37cc 432 detector=c->GetDetectorIndex();
a504d56f 433
75fb37cc 434 if (!c->Misalign()) AliWarning("Can't misalign this cluster !");
6262dd3d 435
436 Int_t retval = fgLayers[i].InsertCluster(new AliITSRecPoint(*c));
437 if(retval) {
438 AliWarning(Form("Too many clusters on layer %d!",i));
439 break;
440 }
e43c066c 441 }
6262dd3d 442
afd25725 443 // add dead zone "virtual" cluster in SPD, if there is a cluster within
444 // zwindow cm from the dead zone
bf1cd124 445 // This method assumes that fSPDdetzcentre is ordered from -z to +z
afd25725 446 if (i<2 && AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
e50912db 447 for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) {
afd25725 448 Int_t lab[4] = {0,0,0,detector};
449 Int_t info[3] = {0,0,i};
6518a6c5 450 Float_t q = 0.; // this identifies virtual clusters
9cd19c63 451 Float_t hit[6] = {xdead,
afd25725 452 0.,
453 AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(),
454 AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(),
9cd19c63 455 q,
456 0.};
afd25725 457 Bool_t local = kTRUE;
458 Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone();
e50912db 459 hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 460 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
461 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 462 hit[1] = fSPDdetzcentre[1]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 463 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
464 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 465 hit[1] = fSPDdetzcentre[1]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 466 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
467 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 468 hit[1] = fSPDdetzcentre[2]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 469 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
470 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 471 hit[1] = fSPDdetzcentre[2]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 472 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
473 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 474 hit[1] = fSPDdetzcentre[3]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 475 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
476 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e43c066c 477 }
6518a6c5 478 } // "virtual" clusters in SPD
e43c066c 479
480 }
481 //
482 fgLayers[i].ResetRoad(); //road defined by the cluster density
483 fgLayers[i].SortClusters();
484 }
485
4fa7f7d1 486 // check whether we have to skip some layers
487 SetForceSkippingOfLayer();
488
e43c066c 489 return 0;
490}
44347160 491//------------------------------------------------------------------------
e43c066c 492void AliITStrackerMI::UnloadClusters() {
493 //--------------------------------------------------------------------
494 //This function unloads ITS clusters
495 //--------------------------------------------------------------------
e50912db 496 for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters();
e43c066c 497}
44347160 498//------------------------------------------------------------------------
23197852 499void AliITStrackerMI::FillClusterArray(TObjArray* array) const {
500 //--------------------------------------------------------------------
501 // Publishes all pointers to clusters known to the tracker into the
502 // passed object array.
503 // The ownership is not transfered - the caller is not expected to delete
504 // the clusters.
505 //--------------------------------------------------------------------
506
507 for(Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
508 for(Int_t icl=0; icl<fgLayers[i].GetNumberOfClusters(); icl++) {
509 AliCluster *cl = (AliCluster*)fgLayers[i].GetCluster(icl);
510 array->AddLast(cl);
511 }
512 }
513
514 return;
515}
516//------------------------------------------------------------------------
44396017 517Int_t AliITStrackerMI::CorrectForTPCtoITSDeadZoneMaterial(AliITStrackMI *t) {
e43c066c 518 //--------------------------------------------------------------------
519 // Correction for the material between the TPC and the ITS
e43c066c 520 //--------------------------------------------------------------------
e50912db 521 if (t->GetX() > AliITSRecoParam::Getriw()) { // inward direction
522 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw(),1)) return 0;// TPC inner wall
523 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
524 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
525 } else if (t->GetX() < AliITSRecoParam::Getrs()) { // outward direction
526 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
527 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
528 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw()+0.001,1)) return 0;// TPC inner wall
e43c066c 529 } else {
44396017 530 printf("CorrectForTPCtoITSDeadZoneMaterial: Track is already in the dead zone !\n");
e50912db 531 return 0;
e43c066c 532 }
533
e50912db 534 return 1;
e43c066c 535}
44347160 536//------------------------------------------------------------------------
af885e0f 537Int_t AliITStrackerMI::Clusters2Tracks(AliESDEvent *event) {
e43c066c 538 //--------------------------------------------------------------------
539 // This functions reconstructs ITS tracks
540 // The clusters must be already loaded !
541 //--------------------------------------------------------------------
fddf8459 542
4fa7f7d1 543 AliDebug(2,Form("SKIPPING %d %d %d %d %d %d",ForceSkippingOfLayer(0),ForceSkippingOfLayer(1),ForceSkippingOfLayer(2),ForceSkippingOfLayer(3),ForceSkippingOfLayer(4),ForceSkippingOfLayer(5)));
fddf8459 544
e50912db 545 fTrackingPhase="Clusters2Tracks";
dc422a31 546 //
e546b023 547 if (fPools && !fPools->GetPoolTrITS()) fPools->SetPool(new AliClonesPool("AliITStrackMI",5000), AliPoolsSet::kPoolTrITS);
548 //
04315dad 549 fSelectBestMIP03 = kFALSE;//AliITSReconstructor::GetRecoParam()->GetSelectBestMIP03();
dc422a31 550 fFlagFakes = AliITSReconstructor::GetRecoParam()->GetFlagFakes();
551 fUseImproveKalman = AliITSReconstructor::GetRecoParam()->GetUseImproveKalman();
552 //
e43c066c 553 TObjArray itsTracks(15000);
628e7bb0 554 fOriginal.Clear();
81e97e0d 555 fEsd = event; // store pointer to the esd
afd25725 556
9a5326b1 557 // temporary (for cosmics)
558 if(event->GetVertex()) {
559 TString title = event->GetVertex()->GetTitle();
560 if(title.Contains("cosmics")) {
561 Double_t xyz[3]={GetX(),GetY(),GetZ()};
562 Double_t exyz[3]={0.1,0.1,0.1};
563 SetVertex(xyz,exyz);
564 }
565 }
566 // temporary
75a74b11 567 Int_t noesd = 0;
e43c066c 568 {/* Read ESD tracks */
afd25725 569 Double_t pimass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
e43c066c 570 Int_t nentr=event->GetNumberOfTracks();
75a74b11 571 noesd=nentr;
572 // Info("Clusters2Tracks", "Number of ESD tracks: %d\n", nentr);
e43c066c 573 while (nentr--) {
574 AliESDtrack *esd=event->GetTrack(nentr);
4187a601 575 // ---- for debugging:
576 //if(TMath::Abs(esd->GetX()-83.65)<0.1) { FILE *f=fopen("tpc.dat","a"); fprintf(f,"%f %f %f %f %f %f\n",(Float_t)event->GetEventNumberInFile(),(Float_t)TMath::Abs(esd->GetLabel()),(Float_t)esd->GetX(),(Float_t)esd->GetY(),(Float_t)esd->GetZ(),(Float_t)esd->Pt()); fclose(f); }
e43c066c 577
578 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) continue;
579 if (esd->GetStatus()&AliESDtrack::kTPCout) continue;
580 if (esd->GetStatus()&AliESDtrack::kITSin) continue;
51ad6848 581 if (esd->GetKinkIndex(0)>0) continue; //kink daughter
763bdf3e 582 AliITStrackMI *t = new AliITStrackMI(*esd);
b9671574 583 t->GetDZ(GetX(),GetY(),GetZ(),t->GetDP()); //I.B.
584 Double_t vdist = TMath::Sqrt(t->GetD(0)*t->GetD(0)+t->GetD(1)*t->GetD(1));
6518a6c5 585
586
afd25725 587 // look at the ESD mass hypothesys !
588 if (t->GetMass()<0.9*pimass) t->SetMass(pimass);
e43c066c 589 // write expected q
b9671574 590 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e43c066c 591
afd25725 592 if (esd->GetV0Index(0)>0 && t->GetD(0)<AliITSReconstructor::GetRecoParam()->GetMaxDforV0dghtrForProlongation()){
81e97e0d 593 //track - can be V0 according to TPC
afd25725 594 } else {
595 if (TMath::Abs(t->GetD(0))>AliITSReconstructor::GetRecoParam()->GetMaxDForProlongation()) {
81e97e0d 596 delete t;
597 continue;
e50912db 598 }
afd25725 599 if (TMath::Abs(vdist)>AliITSReconstructor::GetRecoParam()->GetMaxDZForProlongation()) {
81e97e0d 600 delete t;
601 continue;
602 }
6c23ffed 603 if (t->Pt()<AliITSReconstructor::GetRecoParam()->GetMinPtForProlongation()) {
81e97e0d 604 delete t;
605 continue;
606 }
e50912db 607 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
81e97e0d 608 delete t;
609 continue;
610 }
e43c066c 611 }
b9671574 612 t->SetReconstructed(kFALSE);
e43c066c 613 itsTracks.AddLast(t);
628e7bb0 614 fOriginal.AddLast(t);
e43c066c 615 }
616 } /* End Read ESD tracks */
617
618 itsTracks.Sort();
628e7bb0 619 fOriginal.Sort();
e43c066c 620 Int_t nentr=itsTracks.GetEntriesFast();
621 fTrackHypothesys.Expand(nentr);
81e97e0d 622 fBestHypothesys.Expand(nentr);
afd25725 623 MakeCoefficients(nentr);
513ab112 624 if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(event->GetNumberOfTracks());
e43c066c 625 Int_t ntrk=0;
afd25725 626 // THE TWO TRACKING PASSES
e43c066c 627 for (fPass=0; fPass<2; fPass++) {
628 Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue;
e50912db 629 for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) {
e50912db 630 AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack);
e43c066c 631 if (t==0) continue; //this track has been already tracked
1c97ce2f 632 //cout<<"========== "<<fPass<<" "<<fCurrentEsdTrack<<" =========\n";
b9671574 633 if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed
791f9a2a 634 Float_t dz[2]; t->GetDZ(GetX(),GetY(),GetZ(),dz); //I.B.
afd25725 635 if (fConstraint[fPass]) {
636 if (TMath::Abs(dz[0])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint() ||
637 TMath::Abs(dz[1])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint()) continue;
638 }
e43c066c 639
640 Int_t tpcLabel=t->GetLabel(); //save the TPC track label
4187a601 641 AliDebug(2,Form("LABEL %d pass %d",tpcLabel,fPass));
e43c066c 642 fI = 6;
643 ResetTrackToFollow(*t);
644 ResetBestTrack();
6518a6c5 645
e50912db 646 FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]);
1c97ce2f 647
e43c066c 648
649 SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change
650 //
ae00569a 651 AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15);
e43c066c 652 if (!besttrack) continue;
653 besttrack->SetLabel(tpcLabel);
654 // besttrack->CookdEdx();
655 CookdEdx(besttrack);
b9671574 656 besttrack->SetFakeRatio(1.);
e43c066c 657 CookLabel(besttrack,0.); //For comparison only
e43c066c 658 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
a4354152 659 t->SetWinner(besttrack);
628e7bb0 660
628e7bb0 661 if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain
662
b9671574 663 t->SetReconstructed(kTRUE);
1c97ce2f 664 ntrk++;
4187a601 665 AliDebug(2,Form("TRACK! (label %d) ncls %d",besttrack->GetLabel(),besttrack->GetNumberOfClusters()));
e43c066c 666 }
667 GetBestHypothesysMIP(itsTracks);
afd25725 668 } // end loop on the two tracking passes
a4354152 669 //
670 if (fFlagFakes) FlagFakes(itsTracks);
671 //
cd90f0a2 672 if(event->GetNumberOfV0s()>0) AliITSV0Finder::UpdateTPCV0(event,this);
673 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::FindV02(event,this);
628e7bb0 674 fAfterV0 = kTRUE;
628e7bb0 675 //
a0b53cc4 676 itsTracks.Clear();
e43c066c 677 //
678 Int_t entries = fTrackHypothesys.GetEntriesFast();
e50912db 679 for (Int_t ientry=0; ientry<entries; ientry++) {
3f4cca6e 680 TObjArray * array =(TObjArray*)fTrackHypothesys.At(ientry);
e43c066c 681 if (array) array->Delete();
682 delete fTrackHypothesys.RemoveAt(ientry);
683 }
684
685 fTrackHypothesys.Delete();
4ffece29 686 entries = fBestHypothesys.GetEntriesFast();
687 for (Int_t ientry=0; ientry<entries; ientry++) {
3f4cca6e 688 TObjArray * array =(TObjArray*)fBestHypothesys.At(ientry);
4ffece29 689 if (array) array->Delete();
690 delete fBestHypothesys.RemoveAt(ientry);
691 }
81e97e0d 692 fBestHypothesys.Delete();
628e7bb0 693 fOriginal.Clear();
afd25725 694 delete [] fCoefficients;
695 fCoefficients=0;
e50912db 696 DeleteTrksMaterialLUT();
697
75a74b11 698 AliInfo(Form("Number of prolonged tracks: %d out of %d ESD tracks",ntrk,noesd));
e50912db 699
700 fTrackingPhase="Default";
628e7bb0 701
e43c066c 702 return 0;
703}
44347160 704//------------------------------------------------------------------------
af885e0f 705Int_t AliITStrackerMI::PropagateBack(AliESDEvent *event) {
e43c066c 706 //--------------------------------------------------------------------
707 // This functions propagates reconstructed ITS tracks back
708 // The clusters must be loaded !
709 //--------------------------------------------------------------------
e50912db 710 fTrackingPhase="PropagateBack";
e43c066c 711 Int_t nentr=event->GetNumberOfTracks();
75a74b11 712 // Info("PropagateBack", "Number of ESD tracks: %d\n", nentr);
e43c066c 713
714 Int_t ntrk=0;
715 for (Int_t i=0; i<nentr; i++) {
716 AliESDtrack *esd=event->GetTrack(i);
717
a512bf97 718 // Start time integral and add distance from current position to vertex
e43c066c 719 if (esd->GetStatus()&AliESDtrack::kITSout) continue;
48b634ff 720 AliITStrackMI t(*esd);
67178f34 721 Double_t xyzTrk[3],xyzVtx[3]={GetX(),GetY(),GetZ()};
48b634ff 722 t.GetXYZ(xyzTrk);
67178f34 723 Double_t dst2 = 0.;
a512bf97 724 for (Int_t icoord=0; icoord<3; icoord++) {Double_t di = xyzTrk[icoord] - xyzVtx[icoord];dst2 += di*di; }
48b634ff 725 t.StartTimeIntegral();
726 t.AddTimeStep(TMath::Sqrt(dst2));
a512bf97 727 //
728 // transfer the time integral to ESD track
729 esd->SetStatus(AliESDtrack::kTIME);
48b634ff 730 Double_t times[10];t.GetIntegratedTimes(times); esd->SetIntegratedTimes(times);
731 esd->SetIntegratedLength(t.GetIntegratedLength());
a512bf97 732 //
48b634ff 733 if ((esd->GetStatus()&AliESDtrack::kITSin)==0) continue;
e43c066c 734
48b634ff 735 t.SetExpQ(TMath::Max(0.8*t.GetESDtrack()->GetTPCsignal(),30.));
736 ResetTrackToFollow(t);
a512bf97 737 //
6c94f330 738 fTrackToFollow.ResetCovariance(10.); fTrackToFollow.ResetClusters();
48b634ff 739 if (RefitAt(AliITSRecoParam::GetrInsideITSscreen(),&fTrackToFollow,&t)) {
740 if (!CorrectForTPCtoITSDeadZoneMaterial(&fTrackToFollow)) continue;
741 fTrackToFollow.SetLabel(t.GetLabel());
a512bf97 742 //fTrackToFollow.CookdEdx();
743 CookLabel(&fTrackToFollow,0.); //For comparison only
744 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSout);
745 //UseClusters(&fTrackToFollow);
746 ntrk++;
e43c066c 747 }
e43c066c 748 }
749
75a74b11 750 AliInfo(Form("Number of back propagated ITS tracks: %d out of %d ESD tracks",ntrk,nentr));
e43c066c 751
e50912db 752 fTrackingPhase="Default";
753
e43c066c 754 return 0;
755}
44347160 756//------------------------------------------------------------------------
af885e0f 757Int_t AliITStrackerMI::RefitInward(AliESDEvent *event) {
e43c066c 758 //--------------------------------------------------------------------
759 // This functions refits ITS tracks using the
760 // "inward propagated" TPC tracks
761 // The clusters must be loaded !
762 //--------------------------------------------------------------------
e50912db 763 fTrackingPhase="RefitInward";
44396017 764
cd90f0a2 765 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::RefitV02(event,this);
44396017 766
794d9013 767 Bool_t doExtra=AliITSReconstructor::GetRecoParam()->GetSearchForExtraClusters();
768 if(!doExtra) AliDebug(2,"Do not search for extra clusters");
769
e43c066c 770 Int_t nentr=event->GetNumberOfTracks();
75a74b11 771 // Info("RefitInward", "Number of ESD tracks: %d\n", nentr);
e43c066c 772
1f1e7832 773 // only for PlaneEff and in case of SPD (for FO studies)
774 if( AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
775 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0 &&
776 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()<2) {
777 for (UInt_t i=0; i<AliITSPlaneEffSPD::kNModule*AliITSPlaneEffSPD::kNChip; i++) fSPDChipIntPlaneEff[i]=kFALSE;
778 }
779
e43c066c 780 Int_t ntrk=0;
781 for (Int_t i=0; i<nentr; i++) {
782 AliESDtrack *esd=event->GetTrack(i);
783
784 if ((esd->GetStatus()&AliESDtrack::kITSout) == 0) continue;
785 if (esd->GetStatus()&AliESDtrack::kITSrefit) continue;
786 if (esd->GetStatus()&AliESDtrack::kTPCout)
787 if ((esd->GetStatus()&AliESDtrack::kTPCrefit)==0) continue;
788
763bdf3e 789 AliITStrackMI *t = new AliITStrackMI(*esd);
790
b9671574 791 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e50912db 792 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
e43c066c 793 delete t;
794 continue;
795 }
796
797 ResetTrackToFollow(*t);
798 fTrackToFollow.ResetClusters();
799
ef3508c5 800 // ITS standalone tracks
801 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) {
6c94f330 802 fTrackToFollow.ResetCovariance(10.);
ef3508c5 803 // protection for loopers that can have parameters screwed up
804 if(TMath::Abs(fTrackToFollow.GetY())>1000. ||
805 TMath::Abs(fTrackToFollow.GetZ())>1000.) {
806 delete t;
807 continue;
808 }
809 }
e43c066c 810
811 //Refitting...
58e8dc31 812 Bool_t pe=(AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
813 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0);
1a64bda6 814
4187a601 815 AliDebug(2,Form("Refit LABEL %d %d",t->GetLabel(),t->GetNumberOfClusters()));
794d9013 816 if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,doExtra,pe)) {
4187a601 817 AliDebug(2," refit OK");
e43c066c 818 fTrackToFollow.SetLabel(t->GetLabel());
819 // fTrackToFollow.CookdEdx();
820 CookdEdx(&fTrackToFollow);
821
822 CookLabel(&fTrackToFollow,0.0); //For comparison only
823
9a5326b1 824 //The beam pipe
e50912db 825 if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
ae00569a 826 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSrefit);
9a5326b1 827 AliESDtrack *esdTrack =fTrackToFollow.GetESDtrack();
ae00569a 828 //printf(" %d\n",esdTrack->GetITSModuleIndex(0));
829 //esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit); //original line
f7a1cc68 830 Double_t r[3]={0.,0.,0.};
9a5326b1 831 Double_t maxD=3.;
832 esdTrack->RelateToVertex(event->GetVertex(),GetBz(r),maxD);
833 ntrk++;
e43c066c 834 }
835 }
836 delete t;
837 }
838
75a74b11 839 AliInfo(Form("Number of refitted tracks: %d out of %d ESD tracks",ntrk,nentr));
e43c066c 840
e50912db 841 fTrackingPhase="Default";
842
e43c066c 843 return 0;
844}
44347160 845//------------------------------------------------------------------------
e43c066c 846AliCluster *AliITStrackerMI::GetCluster(Int_t index) const {
847 //--------------------------------------------------------------------
848 // Return pointer to a given cluster
849 //--------------------------------------------------------------------
850 Int_t l=(index & 0xf0000000) >> 28;
851 Int_t c=(index & 0x0fffffff) >> 00;
852 return fgLayers[l].GetCluster(c);
853}
9a5326b1 854//------------------------------------------------------------------------
df29e9a4 855Bool_t AliITStrackerMI::GetTrackPoint(Int_t index, AliTrackPoint& p) const {
9a5326b1 856 //--------------------------------------------------------------------
df29e9a4 857 // Get track space point with index i
9a5326b1 858 //--------------------------------------------------------------------
60066577 859
78b03929 860 Int_t l=(index & 0xf0000000) >> 28;
861 Int_t c=(index & 0x0fffffff) >> 00;
00a7cc50 862 AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
df29e9a4 863 Int_t idet = cl->GetDetectorIndex();
4e65ff9e 864
60066577 865 Float_t xyz[3];
866 Float_t cov[6];
867 cl->GetGlobalXYZ(xyz);
868 cl->GetGlobalCov(cov);
869 p.SetXYZ(xyz, cov);
be77c8c9 870 p.SetCharge(cl->GetQ());
ebbcf1ea 871 p.SetDriftTime(cl->GetDriftTime());
b7bcc8ed 872 p.SetChargeRatio(cl->GetChargeRatio());
e3901fd8 873 p.SetClusterType(cl->GetClusterType());
ae079791 874 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
df29e9a4 875 switch (l) {
876 case 0:
ae079791 877 iLayer = AliGeomManager::kSPD1;
df29e9a4 878 break;
879 case 1:
ae079791 880 iLayer = AliGeomManager::kSPD2;
df29e9a4 881 break;
882 case 2:
ae079791 883 iLayer = AliGeomManager::kSDD1;
df29e9a4 884 break;
885 case 3:
ae079791 886 iLayer = AliGeomManager::kSDD2;
9a5326b1 887 break;
888 case 4:
889 iLayer = AliGeomManager::kSSD1;
890 break;
891 case 5:
892 iLayer = AliGeomManager::kSSD2;
893 break;
894 default:
895 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
896 break;
897 };
898 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
899 p.SetVolumeID((UShort_t)volid);
900 return kTRUE;
901}
902//------------------------------------------------------------------------
903Bool_t AliITStrackerMI::GetTrackPointTrackingError(Int_t index,
904 AliTrackPoint& p, const AliESDtrack *t) {
905 //--------------------------------------------------------------------
906 // Get track space point with index i
907 // (assign error estimated during the tracking)
908 //--------------------------------------------------------------------
909
910 Int_t l=(index & 0xf0000000) >> 28;
911 Int_t c=(index & 0x0fffffff) >> 00;
912 const AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
913 Int_t idet = cl->GetDetectorIndex();
4187a601 914
9a5326b1 915 const AliITSdetector &det=fgLayers[l].GetDetector(idet);
916
917 // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
918 Float_t detxy[2];
919 detxy[0] = det.GetR()*TMath::Cos(det.GetPhi());
920 detxy[1] = det.GetR()*TMath::Sin(det.GetPhi());
921 Double_t alpha = t->GetAlpha();
922 Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha);
242bd643 923 Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe+cl->GetX(),GetBz()));
9a5326b1 924 phi += alpha-det.GetPhi();
925 Float_t tgphi = TMath::Tan(phi);
926
927 Float_t tgl = t->GetTgl(); // tgl about const along track
928 Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.);
929
d9ead1a0 930 Float_t errtrky,errtrkz,covyz;
8c139cf3 931 Bool_t addMisalErr=kFALSE;
d9ead1a0 932 AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errtrky,errtrkz,covyz,addMisalErr);
9a5326b1 933
934 Float_t xyz[3];
935 Float_t cov[6];
936 cl->GetGlobalXYZ(xyz);
937 // cl->GetGlobalCov(cov);
938 Float_t pos[3] = {0.,0.,0.};
d9ead1a0 939 AliCluster tmpcl((UShort_t)cl->GetVolumeId(),pos[0],pos[1],pos[2],errtrky*errtrky,errtrkz*errtrkz,covyz);
9a5326b1 940 tmpcl.GetGlobalCov(cov);
941
942 p.SetXYZ(xyz, cov);
be77c8c9 943 p.SetCharge(cl->GetQ());
ebbcf1ea 944 p.SetDriftTime(cl->GetDriftTime());
b7bcc8ed 945 p.SetChargeRatio(cl->GetChargeRatio());
e3901fd8 946 p.SetClusterType(cl->GetClusterType());
9a5326b1 947
948 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
949 switch (l) {
950 case 0:
951 iLayer = AliGeomManager::kSPD1;
952 break;
953 case 1:
954 iLayer = AliGeomManager::kSPD2;
955 break;
956 case 2:
957 iLayer = AliGeomManager::kSDD1;
958 break;
959 case 3:
960 iLayer = AliGeomManager::kSDD2;
df29e9a4 961 break;
962 case 4:
ae079791 963 iLayer = AliGeomManager::kSSD1;
df29e9a4 964 break;
965 case 5:
ae079791 966 iLayer = AliGeomManager::kSSD2;
df29e9a4 967 break;
968 default:
969 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
970 break;
971 };
ae079791 972 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
4187a601 973
df29e9a4 974 p.SetVolumeID((UShort_t)volid);
975 return kTRUE;
976}
44347160 977//------------------------------------------------------------------------
81e97e0d 978void AliITStrackerMI::FollowProlongationTree(AliITStrackMI * otrack, Int_t esdindex, Bool_t constrain)
e43c066c 979{
980 //--------------------------------------------------------------------
981 // Follow prolongation tree
982 //--------------------------------------------------------------------
81e97e0d 983 //
afd25725 984 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
985 Double_t ersVtx[]={GetSigmaX(),GetSigmaY(),GetSigmaZ()};
986
2755f080 987
b9671574 988 AliESDtrack * esd = otrack->GetESDtrack();
afd25725 989 if (esd->GetV0Index(0)>0) {
81e97e0d 990 // TEMPORARY SOLLUTION: map V0 indexes to point to proper track
afd25725 991 // mapping of ESD track is different as ITS track in Containers
81e97e0d 992 // Need something more stable
44347160 993 // Indexes are set back again to the ESD track indexes in UpdateTPCV0
81e97e0d 994 for (Int_t i=0;i<3;i++){
995 Int_t index = esd->GetV0Index(i);
996 if (index==0) break;
d6a49f20 997 AliESDv0 * vertex = fEsd->GetV0(index);
81e97e0d 998 if (vertex->GetStatus()<0) continue; // rejected V0
999 //
afd25725 1000 if (esd->GetSign()>0) {
1001 vertex->SetIndex(0,esdindex);
1002 } else {
1003 vertex->SetIndex(1,esdindex);
1004 }
81e97e0d 1005 }
1006 }
1007 TObjArray *bestarray = (TObjArray*)fBestHypothesys.At(esdindex);
1008 if (!bestarray){
1009 bestarray = new TObjArray(5);
4ffece29 1010 bestarray->SetOwner();
81e97e0d 1011 fBestHypothesys.AddAt(bestarray,esdindex);
1012 }
e43c066c 1013
81e97e0d 1014 //
e43c066c 1015 //setup tree of the prolongations
1016 //
a4354152 1017 const int kMaxTr = 100; //RS
1018 static AliITStrackMI tracks[7][kMaxTr];
15dd636f 1019 AliITStrackMI *currenttrack;
1020 static AliITStrackMI currenttrack1;
1021 static AliITStrackMI currenttrack2;
1022 static AliITStrackMI backuptrack;
e43c066c 1023 Int_t ntracks[7];
a4354152 1024 Int_t nindexes[7][kMaxTr];
1025 Float_t normalizedchi2[kMaxTr];
e43c066c 1026 for (Int_t ilayer=0;ilayer<6;ilayer++) ntracks[ilayer]=0;
b9671574 1027 otrack->SetNSkipped(0);
15dd636f 1028 new (&(tracks[6][0])) AliITStrackMI(*otrack);
e43c066c 1029 ntracks[6]=1;
81e97e0d 1030 for (Int_t i=0;i<7;i++) nindexes[i][0]=0;
ae00569a 1031 Int_t modstatus = 1; // found
1032 Float_t xloc,zloc;
e43c066c 1033 //
1034 //
1035 // follow prolongations
e50912db 1036 for (Int_t ilayer=5; ilayer>=0; ilayer--) {
4187a601 1037 AliDebug(2,Form("FollowProlongationTree: layer %d",ilayer));
2755f080 1038 fI = ilayer;
e43c066c 1039 //
2755f080 1040 AliITSlayer &layer=fgLayers[ilayer];
1041 Double_t r = layer.GetR();
e43c066c 1042 ntracks[ilayer]=0;
1043 //
1044 //
2755f080 1045 Int_t nskipped=0;
e43c066c 1046 Float_t nused =0;
e50912db 1047 for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) {
a4354152 1048 // printf("LR %d Tr:%d NSeeds: %d\n",ilayer,itrack,ntracks[ilayer+1]);
e43c066c 1049 //set current track
a4354152 1050 if (ntracks[ilayer]>=kMaxTr) break;
b9671574 1051 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0) nskipped++;
1052 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2.) nused++;
e43c066c 1053 if (ntracks[ilayer]>15+ilayer){
b9671574 1054 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0 && nskipped>4+ilayer) continue;
1055 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2. && nused>3) continue;
e43c066c 1056 }
1057
15dd636f 1058 new(&currenttrack1) AliITStrackMI(tracks[ilayer+1][nindexes[ilayer+1][itrack]]);
44347160 1059
afd25725 1060 // material between SSD and SDD, SDD and SPD
e50912db 1061 if (ilayer==3)
1062 if(!CorrectForShieldMaterial(&currenttrack1,"SDD","inward")) continue;
1063 if (ilayer==1)
1064 if(!CorrectForShieldMaterial(&currenttrack1,"SPD","inward")) continue;
8602c008 1065
2755f080 1066 // detector number
8602c008 1067 Double_t phi,z;
1068 if (!currenttrack1.GetPhiZat(r,phi,z)) continue;
e43c066c 1069 Int_t idet=layer.FindDetectorIndex(phi,z);
e50912db 1070
1071 Double_t trackGlobXYZ1[3];
d1181f10 1072 if (!currenttrack1.GetXYZ(trackGlobXYZ1)) continue;
e50912db 1073
2755f080 1074 // Get the budget to the primary vertex for the current track being prolonged
a4354152 1075 Double_t budgetToPrimVertex = 0;
1076 double xMSLrs[9],x2X0MSLrs[9]; // needed for ImproveKalman
1077 int nMSLrs = 0;
1078 //
1079 if (fUseImproveKalman) nMSLrs = GetEffectiveThicknessLbyL(xMSLrs,x2X0MSLrs);
1080 else budgetToPrimVertex = GetEffectiveThickness();
1081 //
2755f080 1082 // check if we allow a prolongation without point
6518a6c5 1083 Int_t skip = CheckSkipLayer(&currenttrack1,ilayer,idet);
2755f080 1084 if (skip) {
1085 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
6518a6c5 1086 // propagate to the layer radius
d1181f10 1087 Double_t xToGo; if (!vtrack->GetLocalXat(r,xToGo)) continue;
9be1d1c7 1088 if(!vtrack->Propagate(xToGo)) continue;
2755f080 1089 // apply correction for material of the current layer
1090 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
1091 vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1);
f8720bda 1092 vtrack->SetDeadZoneProbability(ilayer,1.); // no penalty for missing cluster
9fd412a8 1093 vtrack->SetClIndex(ilayer,-1);
ae00569a 1094 modstatus = (skip==1 ? 3 : 4); // skipped : out in z
d1181f10 1095 if(LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc)) { // local module coords
1096 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
1097 }
a4354152 1098 if(constrain && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1099 fUseImproveKalman ?
1100 vtrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1101 vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1102 }
2755f080 1103 ntracks[ilayer]++;
6518a6c5 1104 continue;
2755f080 1105 }
1106
1107 // track outside layer acceptance in z
1108 if (idet<0) continue;
1109
1110 //propagate to the intersection with the detector plane
1111 const AliITSdetector &det=layer.GetDetector(idet);
1112 new(&currenttrack2) AliITStrackMI(currenttrack1);
44347160 1113 if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
d1181f10 1114 if (!currenttrack2.Propagate(det.GetPhi(),det.GetR())) continue;
e43c066c 1115 currenttrack1.SetDetectorIndex(idet);
1116 currenttrack2.SetDetectorIndex(idet);
d1181f10 1117 if(!LocalModuleCoord(ilayer,idet,&currenttrack1,xloc,zloc)) continue; // local module coords
6518a6c5 1118
afd25725 1119 //***************
1c97ce2f 1120 // DEFINITION OF SEARCH ROAD AND CLUSTERS SELECTION
e43c066c 1121 //
2755f080 1122 // road in global (rphi,z) [i.e. in tracking ref. system]
1c97ce2f 1123 Double_t zmin,zmax,ymin,ymax;
1124 if (!ComputeRoad(&currenttrack1,ilayer,idet,zmin,zmax,ymin,ymax)) continue;
2755f080 1125
afd25725 1126 // select clusters in road
e43c066c 1127 layer.SelectClusters(zmin,zmax,ymin,ymax);
afd25725 1128 //********************
44347160 1129
afd25725 1130 // Define criteria for track-cluster association
44347160 1131 Double_t msz = currenttrack1.GetSigmaZ2() +
1132 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1133 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1134 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
1135 Double_t msy = currenttrack1.GetSigmaY2() +
1136 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1137 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1138 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
1139 if (constrain) {
1140 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
1141 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
1142 } else {
1143 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
1144 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
1145 }
1146 msz = 1./msz; // 1/RoadZ^2
1147 msy = 1./msy; // 1/RoadY^2
1c97ce2f 1148
e43c066c 1149 //
e43c066c 1150 //
afd25725 1151 // LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER
e43c066c 1152 //
afd25725 1153 const AliITSRecPoint *cl=0;
1154 Int_t clidx=-1;
1155 Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value
6518a6c5 1156 Bool_t deadzoneSPD=kFALSE;
e43c066c 1157 currenttrack = &currenttrack1;
6518a6c5 1158
ae00569a 1159 // check if the road contains a dead zone
23197852 1160 Bool_t noClusters = kFALSE;
1161 if (!layer.GetNextCluster(clidx,kTRUE)) noClusters=kTRUE;
4187a601 1162 if (noClusters) AliDebug(2,"no clusters in road");
1c97ce2f 1163 Double_t dz=0.5*(zmax-zmin);
1164 Double_t dy=0.5*(ymax-ymin);
1165 Int_t dead = CheckDeadZone(&currenttrack1,ilayer,idet,dz,dy,noClusters);
4187a601 1166 if(dead) AliDebug(2,Form("DEAD (%d)\n",dead));
ae00569a 1167 // create a prolongation without clusters (check also if there are no clusters in the road)
1168 if (dead ||
23197852 1169 (noClusters &&
ae00569a 1170 AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) {
6518a6c5 1171 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
9fd412a8 1172 updatetrack->SetClIndex(ilayer,-1);
ae00569a 1173 if (dead==0) {
1174 modstatus = 5; // no cls in road
1175 } else if (dead==1) {
1176 modstatus = 7; // holes in z in SPD
f8720bda 1177 } else if (dead==2 || dead==3 || dead==4) {
ae00569a 1178 modstatus = 2; // dead from OCDB
1179 }
1180 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
6518a6c5 1181 // apply correction for material of the current layer
1182 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1183 if (constrain) { // apply vertex constrain
1184 updatetrack->SetConstrain(constrain);
1185 Bool_t isPrim = kTRUE;
1186 if (ilayer<4) { // check that it's close to the vertex
1187 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
1188 if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
1189 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
1190 TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
1191 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
1192 }
a4354152 1193 if (isPrim && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1194 fUseImproveKalman ?
1195 updatetrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1196 updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1197 }
6518a6c5 1198 }
f8720bda 1199 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
ae00569a 1200 if (dead) {
ae00569a 1201 if (dead==1) { // dead zone at z=0,+-7cm in SPD
f8720bda 1202 updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
ae00569a 1203 deadzoneSPD=kTRUE;
f8720bda 1204 } else if (dead==2 || dead==3) { // dead module or chip from OCDB
1205 updatetrack->SetDeadZoneProbability(ilayer,1.);
1206 } else if (dead==4) { // at least a single dead channel from OCDB
1207 updatetrack->SetDeadZoneProbability(ilayer,0.);
1208 }
6518a6c5 1209 }
1210 ntracks[ilayer]++;
1211 }
1212
ae00569a 1213 clidx=-1;
6518a6c5 1214 // loop over clusters in the road
afd25725 1215 while ((cl=layer.GetNextCluster(clidx))!=0) {
a4354152 1216 if (ntracks[ilayer]>int(0.95*kMaxTr)) break; //space for skipped clusters
afd25725 1217 Bool_t changedet =kFALSE;
88e3c173 1218 if (TMath::Abs(cl->GetQ())<1.e-13 && deadzoneSPD==kTRUE) continue;
a5d0fae6 1219 Int_t idetc=cl->GetDetectorIndex();
afd25725 1220
a5d0fae6 1221 if (currenttrack->GetDetectorIndex()==idetc) { // track already on the cluster's detector
1c97ce2f 1222 // take into account misalignment (bring track to real detector plane)
1223 Double_t xTrOrig = currenttrack->GetX();
9be1d1c7 1224 if (!currenttrack->Propagate(xTrOrig+cl->GetX())) continue;
afd25725 1225 // a first cut on track-cluster distance
1226 if ( (currenttrack->GetZ()-cl->GetZ())*(currenttrack->GetZ()-cl->GetZ())*msz +
1227 (currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. )
1c97ce2f 1228 { // cluster not associated to track
4187a601 1229 AliDebug(2,"not associated");
421c4ba7 1230 // MvL: added here as well
1231 // bring track back to ideal detector plane
1232 currenttrack->Propagate(xTrOrig);
1c97ce2f 1233 continue;
1234 }
1235 // bring track back to ideal detector plane
9be1d1c7 1236 if (!currenttrack->Propagate(xTrOrig)) continue;
afd25725 1237 } else { // have to move track to cluster's detector
a5d0fae6 1238 const AliITSdetector &detc=layer.GetDetector(idetc);
afd25725 1239 // a first cut on track-cluster distance
a5d0fae6 1240 Double_t y;
1c97ce2f 1241 if (!currenttrack2.GetProlongationFast(detc.GetPhi(),detc.GetR()+cl->GetX(),y,z)) continue;
afd25725 1242 if ( (z-cl->GetZ())*(z-cl->GetZ())*msz +
1243 (y-cl->GetY())*(y-cl->GetY())*msy > 1. )
44347160 1244 continue; // cluster not associated to track
e43c066c 1245 //
15dd636f 1246 new (&backuptrack) AliITStrackMI(currenttrack2);
afd25725 1247 changedet = kTRUE;
e43c066c 1248 currenttrack =&currenttrack2;
a5d0fae6 1249 if (!currenttrack->Propagate(detc.GetPhi(),detc.GetR())) {
15dd636f 1250 new (currenttrack) AliITStrackMI(backuptrack);
afd25725 1251 changedet = kFALSE;
e43c066c 1252 continue;
1253 }
a5d0fae6 1254 currenttrack->SetDetectorIndex(idetc);
e50912db 1255 // Get again the budget to the primary vertex
1256 // for the current track being prolonged, if had to change detector
1257 //budgetToPrimVertex = GetEffectiveThickness();// not needed at the moment because anyway we take a mean material for this correction
e43c066c 1258 }
1259
afd25725 1260 // calculate track-clusters chi2
1261 chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer);
1262 // chi2 cut
4187a601 1263 AliDebug(2,Form("chi2 %f max %f",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)));
afd25725 1264 if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
88e3c173 1265 if (TMath::Abs(cl->GetQ())<1.e-13) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
a4354152 1266 if (ntracks[ilayer]>=kMaxTr) continue;
15dd636f 1267 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
9fd412a8 1268 updatetrack->SetClIndex(ilayer,-1);
afd25725 1269 if (changedet) new (&currenttrack2) AliITStrackMI(backuptrack);
ae00569a 1270
88e3c173 1271 if (TMath::Abs(cl->GetQ())>1.e-13) { // real cluster
1c97ce2f 1272 if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) {
4187a601 1273 AliDebug(2,"update failed");
1c97ce2f 1274 continue;
1275 }
09cf9d66 1276 updatetrack->SetSampledEdx(cl->GetQ(),ilayer-2);
ae00569a 1277 modstatus = 1; // found
6518a6c5 1278 } else { // virtual cluster in dead zone
b9671574 1279 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
f8720bda 1280 updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
ae00569a 1281 modstatus = 7; // holes in z in SPD
1282 }
1283
1284 if (changedet) {
1285 Float_t xlocnewdet,zlocnewdet;
d1181f10 1286 if(LocalModuleCoord(ilayer,idet,updatetrack,xlocnewdet,zlocnewdet)) { // local module coords
1287 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xlocnewdet,zlocnewdet);
1288 }
ae00569a 1289 } else {
1290 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
e43c066c 1291 }
afd25725 1292 if (cl->IsUsed()) updatetrack->IncrementNUsed();
1293
1294 // apply correction for material of the current layer
e50912db 1295 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1296
afd25725 1297 if (constrain) { // apply vertex constrain
b9671574 1298 updatetrack->SetConstrain(constrain);
e43c066c 1299 Bool_t isPrim = kTRUE;
afd25725 1300 if (ilayer<4) { // check that it's close to the vertex
b9671574 1301 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
afd25725 1302 if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
1303 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
1304 TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
1305 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
e43c066c 1306 }
a4354152 1307 if (isPrim && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1308 fUseImproveKalman ?
1309 updatetrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1310 updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1311 }
e43c066c 1312 } //apply vertex constrain
1313 ntracks[ilayer]++;
afd25725 1314 } // create new hypothesis
4187a601 1315 else {
1316 AliDebug(2,"chi2 too large");
1317 }
1318
2755f080 1319 } // loop over possible prolongations
1320
1321 // allow one prolongation without clusters
a4354152 1322 if (constrain && itrack<=1 && TMath::Abs(currenttrack1.GetNSkipped())<1.e-13 && deadzoneSPD==kFALSE && ntracks[ilayer]<kMaxTr) {
15dd636f 1323 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
2755f080 1324 // apply correction for material of the current layer
1325 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
9fd412a8 1326 vtrack->SetClIndex(ilayer,-1);
ae00569a 1327 modstatus = 3; // skipped
1328 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
a4354152 1329 if(AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1330 fUseImproveKalman ?
1331 vtrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1332 vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1333 }
b9671574 1334 vtrack->IncrementNSkipped();
e43c066c 1335 ntracks[ilayer]++;
1336 }
1337
6262dd3d 1338
e50912db 1339 } // loop over tracks in layer ilayer+1
afd25725 1340
1341 //loop over track candidates for the current layer
e43c066c 1342 //
1343 //
1344 Int_t accepted=0;
1345
afd25725 1346 Int_t golden=0;
e43c066c 1347 for (Int_t itrack=0;itrack<ntracks[ilayer];itrack++){
1348 normalizedchi2[itrack] = NormalizedChi2(&tracks[ilayer][itrack],ilayer);
afd25725 1349 if (normalizedchi2[itrack] <
1350 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2ForGolden(ilayer)) golden++;
44347160 1351 if (ilayer>4) {
1352 accepted++;
1353 } else {
1354 if (constrain) { // constrain
afd25725 1355 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2C(ilayer)+1)
1356 accepted++;
44347160 1357 } else { // !constrain
afd25725 1358 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonC(ilayer)+1)
1359 accepted++;
44347160 1360 }
e43c066c 1361 }
1362 }
afd25725 1363 // sort tracks by increasing normalized chi2
1364 TMath::Sort(ntracks[ilayer],normalizedchi2,nindexes[ilayer],kFALSE);
e43c066c 1365 ntracks[ilayer] = TMath::Min(accepted,7+2*ilayer);
afd25725 1366 if (ntracks[ilayer]<golden+2+ilayer) ntracks[ilayer]=TMath::Min(golden+2+ilayer,accepted);
a4354152 1367 // if (ntracks[ilayer]>90) ntracks[ilayer]=90;
04315dad 1368 if (ntracks[ilayer]>int(kMaxTr*0.9)) ntracks[ilayer]=int(kMaxTr*0.9);
afd25725 1369 } // end loop over layers
1370
afd25725 1371
1372 //
1373 // Now select tracks to be kept
1374 //
44347160 1375 Int_t max = constrain ? 20 : 5;
e43c066c 1376
afd25725 1377 // tracks that reach layer 0 (SPD inner)
44347160 1378 for (Int_t i=0; i<TMath::Min(max,ntracks[0]); i++) {
15dd636f 1379 AliITStrackMI & track= tracks[0][nindexes[0][i]];
628e7bb0 1380 if (track.GetNumberOfClusters()<2) continue;
afd25725 1381 if (!constrain && track.GetNormChi2(0) >
6518a6c5 1382 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) {
1383 continue;
1384 }
15dd636f 1385 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1386 }
afd25725 1387
1388 // tracks that reach layer 1 (SPD outer)
628e7bb0 1389 for (Int_t i=0;i<TMath::Min(2,ntracks[1]);i++) {
15dd636f 1390 AliITStrackMI & track= tracks[1][nindexes[1][i]];
e43c066c 1391 if (track.GetNumberOfClusters()<4) continue;
afd25725 1392 if (!constrain && track.GetNormChi2(1) >
1393 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
b9671574 1394 if (constrain) track.IncrementNSkipped();
81e97e0d 1395 if (!constrain) {
b9671574 1396 track.SetD(0,track.GetD(GetX(),GetY()));
afd25725 1397 track.SetNSkipped(track.GetNSkipped()+4./(4.+8.*TMath::Abs(track.GetD(0))));
b9671574 1398 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1399 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1400 }
1401 }
15dd636f 1402 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1403 }
afd25725 1404
6518a6c5 1405 // tracks that reach layer 2 (SDD inner), only during non-constrained pass
81e97e0d 1406 if (!constrain){
628e7bb0 1407 for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) {
15dd636f 1408 AliITStrackMI & track= tracks[2][nindexes[2][i]];
628e7bb0 1409 if (track.GetNumberOfClusters()<3) continue;
9cd19c63 1410 if (track.GetNormChi2(2) >
afd25725 1411 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
9cd19c63 1412 track.SetD(0,track.GetD(GetX(),GetY()));
1413 track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0))));
1414 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1415 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1416 }
15dd636f 1417 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1418 }
1419 }
81e97e0d 1420
afd25725 1421 if (!constrain) {
81e97e0d 1422 //
afd25725 1423 // register best track of each layer - important for V0 finder
81e97e0d 1424 //
1425 for (Int_t ilayer=0;ilayer<5;ilayer++){
1426 if (ntracks[ilayer]==0) continue;
1427 AliITStrackMI & track= tracks[ilayer][nindexes[ilayer][0]];
1428 if (track.GetNumberOfClusters()<1) continue;
1429 CookLabel(&track,0);
1430 bestarray->AddAt(new AliITStrackMI(track),ilayer);
1431 }
1432 }
1433 //
1434 // update TPC V0 information
1435 //
b9671574 1436 if (otrack->GetESDtrack()->GetV0Index(0)>0){
81e97e0d 1437 Float_t fprimvertex[3]={GetX(),GetY(),GetZ()};
1438 for (Int_t i=0;i<3;i++){
b9671574 1439 Int_t index = otrack->GetESDtrack()->GetV0Index(i);
81e97e0d 1440 if (index==0) break;
44347160 1441 AliV0 *vertex = (AliV0*)fEsd->GetV0(index);
81e97e0d 1442 if (vertex->GetStatus()<0) continue; // rejected V0
1443 //
6c94f330 1444 if (otrack->GetSign()>0) {
81e97e0d 1445 vertex->SetIndex(0,esdindex);
1446 }
1447 else{
1448 vertex->SetIndex(1,esdindex);
1449 }
1450 //find nearest layer with track info
b75d63a7 1451 Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B.
1452 Int_t nearestold = GetNearestLayer(xrp); //I.B.
81e97e0d 1453 Int_t nearest = nearestold;
9cd19c63 1454 for (Int_t ilayer =nearest;ilayer<7;ilayer++){
81e97e0d 1455 if (ntracks[nearest]==0){
1456 nearest = ilayer;
1457 }
1458 }
1459 //
1460 AliITStrackMI & track= tracks[nearest][nindexes[nearest][0]];
1461 if (nearestold<5&&nearest<5){
b9671574 1462 Bool_t accept = track.GetNormChi2(nearest)<10;
81e97e0d 1463 if (accept){
6c94f330 1464 if (track.GetSign()>0) {
b75d63a7 1465 vertex->SetParamP(track);
81e97e0d 1466 vertex->Update(fprimvertex);
44347160 1467 //vertex->SetIndex(0,track.fESDtrack->GetID());
81e97e0d 1468 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1469 }else{
b75d63a7 1470 vertex->SetParamN(track);
81e97e0d 1471 vertex->Update(fprimvertex);
1472 //vertex->SetIndex(1,track.fESDtrack->GetID());
1473 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1474 }
1475 vertex->SetStatus(vertex->GetStatus()+1);
1476 }else{
44347160 1477 //vertex->SetStatus(-2); // reject V0 - not enough clusters
81e97e0d 1478 }
1479 }
81e97e0d 1480 }
afd25725 1481 }
1482
e43c066c 1483}
44347160 1484//------------------------------------------------------------------------
e43c066c 1485AliITStrackerMI::AliITSlayer & AliITStrackerMI::GetLayer(Int_t layer) const
1486{
1487 //--------------------------------------------------------------------
1488 //
1489 //
1490 return fgLayers[layer];
1491}
44347160 1492//------------------------------------------------------------------------
8221b41b 1493AliITStrackerMI::AliITSlayer::AliITSlayer():
1494fR(0),
1495fPhiOffset(0),
1496fNladders(0),
1497fZOffset(0),
1498fNdetectors(0),
1499fDetectors(0),
1500fN(0),
1501fDy5(0),
1502fDy10(0),
1503fDy20(0),
1504fClustersCs(0),
1505fClusterIndexCs(0),
1506fYcs(0),
1507fZcs(0),
1508fNcs(0),
1509fCurrentSlice(-1),
d9ead1a0 1510fZmin(0),
8221b41b 1511fZmax(0),
1512fYmin(0),
1513fYmax(0),
1514fI(0),
1515fImax(0),
1516fSkip(0),
1517fAccepted(0),
d9ead1a0 1518fRoad(0),
1519fMaxSigmaClY(0),
1520fMaxSigmaClZ(0),
1521fNMaxSigmaCl(3)
1522{
e43c066c 1523 //--------------------------------------------------------------------
1524 //default AliITSlayer constructor
1525 //--------------------------------------------------------------------
e50912db 1526 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1527 fClusterWeight[i]=0;
1528 fClusterTracks[0][i]=-1;
1529 fClusterTracks[1][i]=-1;
1530 fClusterTracks[2][i]=-1;
9cd19c63 1531 fClusterTracks[3][i]=-1;
1532 fY[i]=0;
1533 fZ[i]=0;
1534 }
1535 fYB[0]=0;
1536 fYB[1]=0;
1537
4edc3c8c 1538 for (Int_t j=0; j<AliITSRecoParam::kMaxClusterPerLayer5; j++) {
9cd19c63 1539 for (Int_t j1=0; j1<6; j1++) {
1540 fClusters5[j1][j]=0;
1541 fClusterIndex5[j1][j]=-1;
1542 fY5[j1][j]=0;
1543 fZ5[j1][j]=0;
1544 fN5[j1]=0;
1545 fBy5[j1][0]=0;
1546 fBy5[j1][1]=0;
1547 }
1548 }
1549
4edc3c8c 1550 for (Int_t j=0; j<AliITSRecoParam::kMaxClusterPerLayer10; j++) {
9cd19c63 1551 for (Int_t j1=0; j1<11; j1++) {
1552 fClusters10[j1][j]=0;
1553 fClusterIndex10[j1][j]=-1;
1554 fY10[j1][j]=0;
1555 fZ10[j1][j]=0;
1556 fN10[j1]=0;
1557 fBy10[j1][0]=0;
1558 fBy10[j1][1]=0;
1559 }
e43c066c 1560 }
9cd19c63 1561
4edc3c8c 1562 for (Int_t j=0; j<AliITSRecoParam::kMaxClusterPerLayer20; j++) {
9cd19c63 1563 for (Int_t j1=0; j1<21; j1++) {
1564 fClusters20[j1][j]=0;
1565 fClusterIndex20[j1][j]=-1;
1566 fY20[j1][j]=0;
1567 fZ20[j1][j]=0;
1568 fN20[j1]=0;
1569 fBy20[j1][0]=0;
1570 fBy20[j1][1]=0;
1571 }
1572 }
4edc3c8c 1573 for(Int_t i=0;i<AliITSRecoParam::kMaxClusterPerLayer;i++){
e8c2bf0d 1574 fClusters[i]=NULL;
1575 fClusterIndex[i]=0;
1576 }
e43c066c 1577}
44347160 1578//------------------------------------------------------------------------
e43c066c 1579AliITStrackerMI::AliITSlayer::
8221b41b 1580AliITSlayer(Double_t r,Double_t p,Double_t z,Int_t nl,Int_t nd):
1581fR(r),
1582fPhiOffset(p),
1583fNladders(nl),
1584fZOffset(z),
1585fNdetectors(nd),
1586fDetectors(0),
1587fN(0),
1588fDy5(0),
1589fDy10(0),
1590fDy20(0),
1591fClustersCs(0),
1592fClusterIndexCs(0),
1593fYcs(0),
1594fZcs(0),
1595fNcs(0),
1596fCurrentSlice(-1),
d9ead1a0 1597fZmin(0),
8221b41b 1598fZmax(0),
1599fYmin(0),
1600fYmax(0),
1601fI(0),
1602fImax(0),
1603fSkip(0),
1604fAccepted(0),
d9ead1a0 1605fRoad(0),
1606fMaxSigmaClY(0),
1607fMaxSigmaClZ(0),
1608fNMaxSigmaCl(3) {
e43c066c 1609 //--------------------------------------------------------------------
1610 //main AliITSlayer constructor
1611 //--------------------------------------------------------------------
e43c066c 1612 fDetectors=new AliITSdetector[fNladders*fNdetectors];
afd25725 1613 fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster
9cd19c63 1614
1615 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
1616 fClusterWeight[i]=0;
1617 fClusterTracks[0][i]=-1;
1618 fClusterTracks[1][i]=-1;
1619 fClusterTracks[2][i]=-1;
1620 fClusterTracks[3][i]=-1;
1621 fY[i]=0;
1622 fZ[i]=0;
1623 }
1624
1625 fYB[0]=0;
1626 fYB[1]=0;
1627
4edc3c8c 1628 for (Int_t j=0; j<AliITSRecoParam::kMaxClusterPerLayer5; j++) {
9cd19c63 1629 for (Int_t j1=0; j1<6; j1++) {
1630 fClusters5[j1][j]=0;
1631 fClusterIndex5[j1][j]=-1;
1632 fY5[j1][j]=0;
1633 fZ5[j1][j]=0;
1634 fN5[j1]=0;
1635 fBy5[j1][0]=0;
1636 fBy5[j1][1]=0;
1637 }
1638 }
1639
4edc3c8c 1640 for (Int_t j=0; j<AliITSRecoParam::kMaxClusterPerLayer10; j++) {
9cd19c63 1641 for (Int_t j1=0; j1<11; j1++) {
1642 fClusters10[j1][j]=0;
1643 fClusterIndex10[j1][j]=-1;
1644 fY10[j1][j]=0;
1645 fZ10[j1][j]=0;
1646 fN10[j1]=0;
1647 fBy10[j1][0]=0;
1648 fBy10[j1][1]=0;
1649 }
1650 }
1651
4edc3c8c 1652 for (Int_t j=0; j<AliITSRecoParam::kMaxClusterPerLayer20; j++) {
9cd19c63 1653 for (Int_t j1=0; j1<21; j1++) {
1654 fClusters20[j1][j]=0;
1655 fClusterIndex20[j1][j]=-1;
1656 fY20[j1][j]=0;
1657 fZ20[j1][j]=0;
1658 fN20[j1]=0;
1659 fBy20[j1][0]=0;
1660 fBy20[j1][1]=0;
1661 }
1662 }
4edc3c8c 1663 for(Int_t i=0;i<AliITSRecoParam::kMaxClusterPerLayer;i++){
e8c2bf0d 1664 fClusters[i]=NULL;
1665 fClusterIndex[i]=0;
1666 }
e43c066c 1667}
225cff59 1668/*
44347160 1669//------------------------------------------------------------------------
8221b41b 1670AliITStrackerMI::AliITSlayer::AliITSlayer(const AliITSlayer& layer):
1671fR(layer.fR),
1672fPhiOffset(layer.fPhiOffset),
1673fNladders(layer.fNladders),
1674fZOffset(layer.fZOffset),
1675fNdetectors(layer.fNdetectors),
1676fDetectors(layer.fDetectors),
1677fN(layer.fN),
1678fDy5(layer.fDy5),
1679fDy10(layer.fDy10),
1680fDy20(layer.fDy20),
1681fClustersCs(layer.fClustersCs),
1682fClusterIndexCs(layer.fClusterIndexCs),
1683fYcs(layer.fYcs),
1684fZcs(layer.fZcs),
1685fNcs(layer.fNcs),
1686fCurrentSlice(layer.fCurrentSlice),
d9ead1a0 1687fZmin(layer.fZmin),
8221b41b 1688fZmax(layer.fZmax),
1689fYmin(layer.fYmin),
1690fYmax(layer.fYmax),
1691fI(layer.fI),
1692fImax(layer.fImax),
1693fSkip(layer.fSkip),
1694fAccepted(layer.fAccepted),
d9ead1a0 1695fRoad(layer.fRoad),
1696fMaxSigmaClY(layer.fMaxSigmaClY),
1697fMaxSigmaClZ(layer.fMaxSigmaClZ),
1698fNMaxSigmaCl(layer.fNMaxSigmaCl)
1699{
8221b41b 1700 //Copy constructor
1701}
225cff59 1702*/
44347160 1703//------------------------------------------------------------------------
e43c066c 1704AliITStrackerMI::AliITSlayer::~AliITSlayer() {
1705 //--------------------------------------------------------------------
1706 // AliITSlayer destructor
1707 //--------------------------------------------------------------------
23197852 1708 delete [] fDetectors;
e43c066c 1709 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1710 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1711 fClusterWeight[i]=0;
1712 fClusterTracks[0][i]=-1;
1713 fClusterTracks[1][i]=-1;
1714 fClusterTracks[2][i]=-1;
1715 fClusterTracks[3][i]=-1;
1716 }
1717}
44347160 1718//------------------------------------------------------------------------
e43c066c 1719void AliITStrackerMI::AliITSlayer::ResetClusters() {
1720 //--------------------------------------------------------------------
1721 // This function removes loaded clusters
1722 //--------------------------------------------------------------------
1723 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1724 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++){
e43c066c 1725 fClusterWeight[i]=0;
1726 fClusterTracks[0][i]=-1;
1727 fClusterTracks[1][i]=-1;
1728 fClusterTracks[2][i]=-1;
1729 fClusterTracks[3][i]=-1;
1730 }
1731
1732 fN=0;
1733 fI=0;
1734}
44347160 1735//------------------------------------------------------------------------
e43c066c 1736void AliITStrackerMI::AliITSlayer::ResetWeights() {
1737 //--------------------------------------------------------------------
1738 // This function reset weights of the clusters
1739 //--------------------------------------------------------------------
e50912db 1740 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1741 fClusterWeight[i]=0;
1742 fClusterTracks[0][i]=-1;
1743 fClusterTracks[1][i]=-1;
1744 fClusterTracks[2][i]=-1;
1745 fClusterTracks[3][i]=-1;
1746 }
1747 for (Int_t i=0; i<fN;i++) {
00a7cc50 1748 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster(i);
e43c066c 1749 if (cl&&cl->IsUsed()) cl->Use();
1750 }
1751
1752}
44347160 1753//------------------------------------------------------------------------
e43c066c 1754void AliITStrackerMI::AliITSlayer::ResetRoad() {
1755 //--------------------------------------------------------------------
1756 // This function calculates the road defined by the cluster density
1757 //--------------------------------------------------------------------
1758 Int_t n=0;
1759 for (Int_t i=0; i<fN; i++) {
1760 if (TMath::Abs(fClusters[i]->GetZ())<fR) n++;
1761 }
afd25725 1762 if (n>1) fRoad=2*fR*TMath::Sqrt(TMath::Pi()/n);
e43c066c 1763}
44347160 1764//------------------------------------------------------------------------
afd25725 1765Int_t AliITStrackerMI::AliITSlayer::InsertCluster(AliITSRecPoint *cl) {
e43c066c 1766 //--------------------------------------------------------------------
1767 //This function adds a cluster to this layer
1768 //--------------------------------------------------------------------
e50912db 1769 if (fN==AliITSRecoParam::GetMaxClusterPerLayer()) {
e43c066c 1770 return 1;
1771 }
1772 fCurrentSlice=-1;
afd25725 1773 fClusters[fN]=cl;
1d4090b7 1774 fN++;
afd25725 1775 AliITSdetector &det=GetDetector(cl->GetDetectorIndex());
d9ead1a0 1776 //AD
1777 Double_t nSigmaY=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaY2());
1778 Double_t nSigmaZ=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaZ2());
1779 if (cl->GetY()-nSigmaY<det.GetYmin()) det.SetYmin(cl->GetY()-nSigmaY);
1780 if (cl->GetY()+nSigmaY>det.GetYmax()) det.SetYmax(cl->GetY()+nSigmaY);
1781 if (cl->GetZ()-nSigmaZ<det.GetZmin()) det.SetZmin(cl->GetZ()-nSigmaZ);
1782 if (cl->GetZ()+nSigmaZ>det.GetZmax()) det.SetZmax(cl->GetZ()+nSigmaZ);
1783 //AD
1784 /*
afd25725 1785 if (cl->GetY()<det.GetYmin()) det.SetYmin(cl->GetY());
1786 if (cl->GetY()>det.GetYmax()) det.SetYmax(cl->GetY());
1787 if (cl->GetZ()<det.GetZmin()) det.SetZmin(cl->GetZ());
1788 if (cl->GetZ()>det.GetZmax()) det.SetZmax(cl->GetZ());
d9ead1a0 1789 */
e43c066c 1790 return 0;
1791}
44347160 1792//------------------------------------------------------------------------
e43c066c 1793void AliITStrackerMI::AliITSlayer::SortClusters()
1794{
1795 //
1796 //sort clusters
1797 //
00a7cc50 1798 AliITSRecPoint **clusters = new AliITSRecPoint*[fN];
1d4090b7 1799 Float_t *z = new Float_t[fN];
1800 Int_t * index = new Int_t[fN];
1801 //
d9ead1a0 1802 fMaxSigmaClY=0.; //AD
1803 fMaxSigmaClZ=0.; //AD
1804
1d4090b7 1805 for (Int_t i=0;i<fN;i++){
1806 z[i] = fClusters[i]->GetZ();
d9ead1a0 1807 // save largest errors in y and z for this layer
1808 fMaxSigmaClY=TMath::Max(fMaxSigmaClY,TMath::Sqrt(fClusters[i]->GetSigmaY2()));
1809 fMaxSigmaClZ=TMath::Max(fMaxSigmaClZ,TMath::Sqrt(fClusters[i]->GetSigmaZ2()));
1d4090b7 1810 }
1811 TMath::Sort(fN,z,index,kFALSE);
1812 for (Int_t i=0;i<fN;i++){
1813 clusters[i] = fClusters[index[i]];
1814 }
1815 //
1816 for (Int_t i=0;i<fN;i++){
1817 fClusters[i] = clusters[i];
1818 fZ[i] = fClusters[i]->GetZ();
1819 AliITSdetector &det=GetDetector(fClusters[i]->GetDetectorIndex());
1820 Double_t y=fR*det.GetPhi() + fClusters[i]->GetY();
1821 if (y>2.*fR*TMath::Pi()) y -= 2.*fR*TMath::Pi();
1822 fY[i] = y;
1823 }
1824 delete[] index;
1825 delete[] z;
1826 delete[] clusters;
1827 //
1828
e43c066c 1829 fYB[0]=10000000;
1830 fYB[1]=-10000000;
1831 for (Int_t i=0;i<fN;i++){
1832 if (fY[i]<fYB[0]) fYB[0]=fY[i];
1833 if (fY[i]>fYB[1]) fYB[1]=fY[i];
1834 fClusterIndex[i] = i;
1835 }
1836 //
1837 // fill slices
1838 fDy5 = (fYB[1]-fYB[0])/5.;
1839 fDy10 = (fYB[1]-fYB[0])/10.;
1840 fDy20 = (fYB[1]-fYB[0])/20.;
1841 for (Int_t i=0;i<6;i++) fN5[i] =0;
1842 for (Int_t i=0;i<11;i++) fN10[i]=0;
1843 for (Int_t i=0;i<21;i++) fN20[i]=0;
1844 //
1845 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;}
1846 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;}
1847 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;}
1848 //
1849 //
1d4090b7 1850 for (Int_t i=0;i<fN;i++)
1851 for (Int_t irot=-1;irot<=1;irot++){
1852 Float_t curY = fY[i]+irot*TMath::TwoPi()*fR;
1853 // slice 5
1854 for (Int_t slice=0; slice<6;slice++){
e50912db 1855 if (fBy5[slice][0]<curY && curY<fBy5[slice][1]&&fN5[slice]<AliITSRecoParam::GetMaxClusterPerLayer5()){
1d4090b7 1856 fClusters5[slice][fN5[slice]] = fClusters[i];
1857 fY5[slice][fN5[slice]] = curY;
1858 fZ5[slice][fN5[slice]] = fZ[i];
1859 fClusterIndex5[slice][fN5[slice]]=i;
1860 fN5[slice]++;
1861 }
e43c066c 1862 }
1d4090b7 1863 // slice 10
1864 for (Int_t slice=0; slice<11;slice++){
e50912db 1865 if (fBy10[slice][0]<curY && curY<fBy10[slice][1]&&fN10[slice]<AliITSRecoParam::GetMaxClusterPerLayer10()){
1d4090b7 1866 fClusters10[slice][fN10[slice]] = fClusters[i];
1867 fY10[slice][fN10[slice]] = curY;
1868 fZ10[slice][fN10[slice]] = fZ[i];
1869 fClusterIndex10[slice][fN10[slice]]=i;
1870 fN10[slice]++;
1871 }
e43c066c 1872 }
1d4090b7 1873 // slice 20
1874 for (Int_t slice=0; slice<21;slice++){
e50912db 1875 if (fBy20[slice][0]<curY && curY<fBy20[slice][1]&&fN20[slice]<AliITSRecoParam::GetMaxClusterPerLayer20()){
1d4090b7 1876 fClusters20[slice][fN20[slice]] = fClusters[i];
1877 fY20[slice][fN20[slice]] = curY;
1878 fZ20[slice][fN20[slice]] = fZ[i];
1879 fClusterIndex20[slice][fN20[slice]]=i;
1880 fN20[slice]++;
1881 }
1882 }
e43c066c 1883 }
1d4090b7 1884
1885 //
1886 // consistency check
1887 //
1888 for (Int_t i=0;i<fN-1;i++){
1889 if (fZ[i]>fZ[i+1]){
ae00569a 1890 printf("Bug\n");
e43c066c 1891 }
1892 }
1d4090b7 1893 //
1894 for (Int_t slice=0;slice<21;slice++)
1895 for (Int_t i=0;i<fN20[slice]-1;i++){
1896 if (fZ20[slice][i]>fZ20[slice][i+1]){
ae00569a 1897 printf("Bug\n");
1d4090b7 1898 }
1899 }
1900
1901
e43c066c 1902}
44347160 1903//------------------------------------------------------------------------
e43c066c 1904Int_t AliITStrackerMI::AliITSlayer::FindClusterIndex(Float_t z) const {
1905 //--------------------------------------------------------------------
1906 // This function returns the index of the nearest cluster
1907 //--------------------------------------------------------------------
1908 Int_t ncl=0;
1909 const Float_t *zcl;
1910 if (fCurrentSlice<0) {
1911 ncl = fN;
1912 zcl = fZ;
1913 }
1914 else{
1915 ncl = fNcs;
1916 zcl = fZcs;;
1917 }
1918
1919 if (ncl==0) return 0;
1920 Int_t b=0, e=ncl-1, m=(b+e)/2;
1921 for (; b<e; m=(b+e)/2) {
1922 // if (z > fClusters[m]->GetZ()) b=m+1;
1923 if (z > zcl[m]) b=m+1;
1924 else e=m;
1925 }
1926 return m;
1927}
44347160 1928//------------------------------------------------------------------------
1c97ce2f 1929Bool_t AliITStrackerMI::ComputeRoad(AliITStrackMI* track,Int_t ilayer,Int_t idet,Double_t &zmin,Double_t &zmax,Double_t &ymin,Double_t &ymax) const {
1930 //--------------------------------------------------------------------
1931 // This function computes the rectangular road for this track
1932 //--------------------------------------------------------------------
1933
1934
1935 AliITSdetector &det = fgLayers[ilayer].GetDetector(idet);
1936 // take into account the misalignment: propagate track to misaligned detector plane
1937 if (!track->Propagate(det.GetPhi(),det.GetRmisal())) return kFALSE;
1938
1939 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
1940 TMath::Sqrt(track->GetSigmaZ2() +
1941 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1942 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1943 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
1944 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
1945 TMath::Sqrt(track->GetSigmaY2() +
1946 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1947 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1948 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
1949
1950 // track at boundary between detectors, enlarge road
1951 Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
1952 if ( (track->GetY()-dy < det.GetYmin()+boundaryWidth) ||
1953 (track->GetY()+dy > det.GetYmax()-boundaryWidth) ||
1954 (track->GetZ()-dz < det.GetZmin()+boundaryWidth) ||
1955 (track->GetZ()+dz > det.GetZmax()-boundaryWidth) ) {
1956 Float_t tgl = TMath::Abs(track->GetTgl());
1957 if (tgl > 1.) tgl=1.;
1958 Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets();
1959 dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl);
1960 Float_t snp = TMath::Abs(track->GetSnp());
1961 if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) return kFALSE;
1962 dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
1963 } // boundary
1964
1965 // add to the road a term (up to 2-3 mm) to deal with misalignments
1966 dy = TMath::Sqrt(dy*dy + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
1967 dz = TMath::Sqrt(dz*dz + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
1968
1969 Double_t r = fgLayers[ilayer].GetR();
1970 zmin = track->GetZ() - dz;
1971 zmax = track->GetZ() + dz;
1972 ymin = track->GetY() + r*det.GetPhi() - dy;
1973 ymax = track->GetY() + r*det.GetPhi() + dy;
1974
1975 // bring track back to idead detector plane
1976 if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
1977
1978 return kTRUE;
1979}
1980//------------------------------------------------------------------------
e43c066c 1981void AliITStrackerMI::AliITSlayer::
1982SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) {
1983 //--------------------------------------------------------------------
1984 // This function sets the "window"
1985 //--------------------------------------------------------------------
1986
628e7bb0 1987 Double_t circle=2*TMath::Pi()*fR;
d9ead1a0 1988 fYmin = ymin;
1989 fYmax = ymax;
1990 fZmin = zmin;
1991 fZmax = zmax;
1992 // AD
1993 // enlarge road in y by maximum cluster error on this layer (3 sigma)
1994 fYmin -= fNMaxSigmaCl*fMaxSigmaClY;
1995 fYmax += fNMaxSigmaCl*fMaxSigmaClY;
1996 fZmin -= fNMaxSigmaCl*fMaxSigmaClZ;
1997 fZmax += fNMaxSigmaCl*fMaxSigmaClZ;
1998
e43c066c 1999 Float_t ymiddle = (fYmin+fYmax)*0.5;
ae00569a 2000 if (ymiddle<fYB[0]) {
2001 fYmin+=circle; fYmax+=circle; ymiddle+=circle;
2002 } else if (ymiddle>fYB[1]) {
2003 fYmin-=circle; fYmax-=circle; ymiddle-=circle;
e43c066c 2004 }
ae00569a 2005
e43c066c 2006 //
2007 fCurrentSlice =-1;
2008 // defualt take all
2009 fClustersCs = fClusters;
2010 fClusterIndexCs = fClusterIndex;
2011 fYcs = fY;
2012 fZcs = fZ;
2013 fNcs = fN;
628e7bb0 2014 //
e43c066c 2015 //is in 20 slice?
2016 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy20){
2017 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy20);
2018 if (slice<0) slice=0;
2019 if (slice>20) slice=20;
2020 Bool_t isOK = (fYmin>fBy20[slice][0]&&fYmax<fBy20[slice][1]);
2021 if (isOK) {
2022 fCurrentSlice=slice;
2023 fClustersCs = fClusters20[fCurrentSlice];
2024 fClusterIndexCs = fClusterIndex20[fCurrentSlice];
2025 fYcs = fY20[fCurrentSlice];
2026 fZcs = fZ20[fCurrentSlice];
2027 fNcs = fN20[fCurrentSlice];
2028 }
2029 }
2030 //
2031 //is in 10 slice?
2032 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy10){
2033 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy10);
2034 if (slice<0) slice=0;
2035 if (slice>10) slice=10;
2036 Bool_t isOK = (fYmin>fBy10[slice][0]&&fYmax<fBy10[slice][1]);
2037 if (isOK) {
2038 fCurrentSlice=slice;
2039 fClustersCs = fClusters10[fCurrentSlice];
2040 fClusterIndexCs = fClusterIndex10[fCurrentSlice];
2041 fYcs = fY10[fCurrentSlice];
2042 fZcs = fZ10[fCurrentSlice];
2043 fNcs = fN10[fCurrentSlice];
2044 }
2045 }
2046 //
2047 //is in 5 slice?
2048 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy5){
2049 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy5);
2050 if (slice<0) slice=0;
2051 if (slice>5) slice=5;
2052 Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]);
ae00569a 2053 if (isOK) {
e43c066c 2054 fCurrentSlice=slice;
2055 fClustersCs = fClusters5[fCurrentSlice];
2056 fClusterIndexCs = fClusterIndex5[fCurrentSlice];
2057 fYcs = fY5[fCurrentSlice];
2058 fZcs = fZ5[fCurrentSlice];
2059 fNcs = fN5[fCurrentSlice];
2060 }
2061 }
628e7bb0 2062 //
d9ead1a0 2063 fI = FindClusterIndex(fZmin);
2064 fImax = TMath::Min(FindClusterIndex(fZmax)+1,fNcs);
2065 fSkip = 0;
2066 fAccepted = 0;
6518a6c5 2067
2068 return;
e43c066c 2069}
44347160 2070//------------------------------------------------------------------------
628e7bb0 2071Int_t AliITStrackerMI::AliITSlayer::
2072FindDetectorIndex(Double_t phi, Double_t z) const {
2073 //--------------------------------------------------------------------
2074 //This function finds the detector crossed by the track
2075 //--------------------------------------------------------------------
31fb8575 2076 Double_t dphi;
2077 if (fZOffset<0) // old geometry
2078 dphi = -(phi-fPhiOffset);
2079 else // new geometry
2080 dphi = phi-fPhiOffset;
2081
6518a6c5 2082
628e7bb0 2083 if (dphi < 0) dphi += 2*TMath::Pi();
2084 else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi();
2085 Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5);
2086 if (np>=fNladders) np-=fNladders;
2087 if (np<0) np+=fNladders;
2088
6518a6c5 2089
628e7bb0 2090 Double_t dz=fZOffset-z;
6518a6c5 2091 Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5;
2092 Int_t nz = (nnz<0 ? -1 : (Int_t)nnz);
bf1cd124 2093 if (nz>=fNdetectors || nz<0) {
2094 //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz);
2095 return -1;
2096 }
628e7bb0 2097
23197852 2098 // ad hoc correction for 3rd ladder of SDD inner layer,
2099 // which is reversed (rotated by pi around local y)
2100 // this correction is OK only from AliITSv11Hybrid onwards
2101 if (GetR()>12. && GetR()<20.) { // SDD inner
2102 if(np==2) { // 3rd ladder
6801b453 2103 Double_t posMod252[3];
2104 AliITSgeomTGeo::GetTranslation(252,posMod252);
2105 // check the Z coordinate of Mod 252: if negative
2106 // (old SDD geometry in AliITSv11Hybrid)
2107 // the swap of numeration whould be applied
2108 if(posMod252[2]<0.){
2109 nz = (fNdetectors-1) - nz;
2110 }
2111 }
23197852 2112 }
2113 //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz);
2114
2115
628e7bb0 2116 return np*fNdetectors + nz;
2117}
44347160 2118//------------------------------------------------------------------------
ae00569a 2119const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci,Bool_t test)
2120{
e43c066c 2121 //--------------------------------------------------------------------
2122 // This function returns clusters within the "window"
2123 //--------------------------------------------------------------------
2124
ae00569a 2125 if (fCurrentSlice<0) {
e43c066c 2126 Double_t rpi2 = 2.*fR*TMath::Pi();
2127 for (Int_t i=fI; i<fImax; i++) {
2128 Double_t y = fY[i];
d9ead1a0 2129 Double_t z = fZ[i];
e43c066c 2130 if (fYmax<y) y -= rpi2;
1d4090b7 2131 if (fYmin>y) y += rpi2;
e43c066c 2132 if (y<fYmin) continue;
2133 if (y>fYmax) continue;
d9ead1a0 2134 // AD
2135 // skip clusters that are in "extended" road but they
2136 // 3sigma error does not touch the original road
2137 if (z+fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())<fZmin+fNMaxSigmaCl*fMaxSigmaClZ) continue;
2138 if (z-fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())>fZmax-fNMaxSigmaCl*fMaxSigmaClZ) continue;
2139 //
88e3c173 2140 if (TMath::Abs(fClusters[i]->GetQ())<1.e-13 && fSkip==2) continue;
e43c066c 2141 ci=i;
ae00569a 2142 if (!test) fI=i+1;
e43c066c 2143 return fClusters[i];
2144 }
ae00569a 2145 } else {
e43c066c 2146 for (Int_t i=fI; i<fImax; i++) {
2147 if (fYcs[i]<fYmin) continue;
2148 if (fYcs[i]>fYmax) continue;
88e3c173 2149 if (TMath::Abs(fClustersCs[i]->GetQ())<1.e-13 && fSkip==2) continue;
e43c066c 2150 ci=fClusterIndexCs[i];
ae00569a 2151 if (!test) fI=i+1;
e43c066c 2152 return fClustersCs[i];
2153 }
2154 }
2155 return 0;
2156}
44347160 2157//------------------------------------------------------------------------
e43c066c 2158Double_t AliITStrackerMI::AliITSlayer::GetThickness(Double_t y,Double_t z,Double_t &x0)
2159const {
2160 //--------------------------------------------------------------------
afd25725 2161 // This function returns the layer thickness at this point (units X0)
e43c066c 2162 //--------------------------------------------------------------------
2163 Double_t d=0.0085;
e50912db 2164 x0=AliITSRecoParam::GetX0Air();
e43c066c 2165 if (43<fR&&fR<45) { //SSD2
2166 Double_t dd=0.0034;
2167 d=dd;
2168 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2169 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
2170 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
2171 for (Int_t i=0; i<12; i++) {
2172 if (TMath::Abs(z-3.9*(i+0.5))<0.15) {
2173 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2174 d+=0.0034;
2175 break;
2176 }
2177 if (TMath::Abs(z+3.9*(i+0.5))<0.15) {
2178 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2179 d+=0.0034;
2180 break;
2181 }
2182 if (TMath::Abs(z-3.4-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2183 if (TMath::Abs(z+0.5+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2184 }
2185 } else
2186 if (37<fR&&fR<41) { //SSD1
2187 Double_t dd=0.0034;
2188 d=dd;
2189 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2190 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
2191 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
2192 for (Int_t i=0; i<11; i++) {
2193 if (TMath::Abs(z-3.9*i)<0.15) {
2194 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2195 d+=dd;
2196 break;
2197 }
2198 if (TMath::Abs(z+3.9*i)<0.15) {
2199 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2200 d+=dd;
2201 break;
2202 }
2203 if (TMath::Abs(z-1.85-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2204 if (TMath::Abs(z+2.05+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2205 }
2206 } else
2207 if (13<fR&&fR<26) { //SDD
2208 Double_t dd=0.0033;
2209 d=dd;
2210 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2211
2212 if (TMath::Abs(y-1.80)<0.55) {
2213 d+=0.016;
2214 for (Int_t j=0; j<20; j++) {
2215 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2216 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2217 }
2218 }
2219 if (TMath::Abs(y+1.80)<0.55) {
2220 d+=0.016;
2221 for (Int_t j=0; j<20; j++) {
2222 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2223 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2224 }
2225 }
2226
2227 for (Int_t i=0; i<4; i++) {
2228 if (TMath::Abs(z-7.3*i)<0.60) {
2229 d+=dd;
2230 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2231 break;
2232 }
2233 if (TMath::Abs(z+7.3*i)<0.60) {
2234 d+=dd;
2235 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2236 break;
2237 }
2238 }
2239 } else
2240 if (6<fR&&fR<8) { //SPD2
2241 Double_t dd=0.0063; x0=21.5;
2242 d=dd;
2243 if (TMath::Abs(y-3.08)>0.5) d+=dd;
afd25725 2244 if (TMath::Abs(y-3.03)<0.10) d+=0.014;
e43c066c 2245 } else
2246 if (3<fR&&fR<5) { //SPD1
2247 Double_t dd=0.0063; x0=21.5;
2248 d=dd;
2249 if (TMath::Abs(y+0.21)>0.6) d+=dd;
afd25725 2250 if (TMath::Abs(y+0.10)<0.10) d+=0.014;
e43c066c 2251 }
2252
2253 return d;
2254}
44347160 2255//------------------------------------------------------------------------
23197852 2256AliITStrackerMI::AliITSdetector::AliITSdetector(const AliITSdetector& det):
2257fR(det.fR),
1c97ce2f 2258fRmisal(det.fRmisal),
23197852 2259fPhi(det.fPhi),
2260fSinPhi(det.fSinPhi),
2261fCosPhi(det.fCosPhi),
2262fYmin(det.fYmin),
2263fYmax(det.fYmax),
2264fZmin(det.fZmin),
2265fZmax(det.fZmax),
2266fIsBad(det.fIsBad),
2267fNChips(det.fNChips),
2268fChipIsBad(det.fChipIsBad)
2269{
2270 //Copy constructor
2271}
2272//------------------------------------------------------------------------
2273void AliITStrackerMI::AliITSdetector::ReadBadDetectorAndChips(Int_t ilayer,Int_t idet,
a70ed6ad 2274 const AliITSDetTypeRec *detTypeRec)
23197852 2275{
2276 //--------------------------------------------------------------------
2277 // Read bad detectors and chips from calibration objects in AliITSDetTypeRec
2278 //--------------------------------------------------------------------
2279
2280 // In AliITSDetTypeRec, detector numbers go from 0 to 2197
2281 // while in the tracker they start from 0 for each layer
2282 for(Int_t il=0; il<ilayer; il++)
2283 idet += AliITSgeomTGeo::GetNLadders(il+1)*AliITSgeomTGeo::GetNDetectors(il+1);
2284
2285 Int_t detType;
2286 if (ilayer==0 || ilayer==1) { // ---------- SPD
2287 detType = 0;
2288 } else if (ilayer==2 || ilayer==3) { // ---------- SDD
2289 detType = 1;
2290 } else if (ilayer==4 || ilayer==5) { // ---------- SSD
2291 detType = 2;
2292 } else {
2293 printf("AliITStrackerMI::AliITSdetector::InitBadFromOCDB: Wrong layer number %d\n",ilayer);
2294 return;
2295 }
2296
2297 // Get calibration from AliITSDetTypeRec
2298 AliITSCalibration *calib = (AliITSCalibration*)detTypeRec->GetCalibrationModel(idet);
d1181f10 2299 calib->SetModuleIndex(idet);
23197852 2300 AliITSCalibration *calibSPDdead = 0;
2301 if(detType==0) calibSPDdead = (AliITSCalibration*)detTypeRec->GetSPDDeadModel(idet); // TEMPORARY
2302 if (calib->IsBad() ||
2303 (detType==0 && calibSPDdead->IsBad())) // TEMPORARY
2304 {
2305 SetBad();
359ac74d 2306 // printf("lay %d bad %d\n",ilayer,idet);
23197852 2307 }
2308
2309 // Get segmentation from AliITSDetTypeRec
2310 AliITSsegmentation *segm = (AliITSsegmentation*)detTypeRec->GetSegmentationModel(detType);
2311
2312 // Read info about bad chips
2313 fNChips = segm->GetMaximumChipIndex()+1;
2314 //printf("ilayer %d detType %d idet %d fNChips %d %d GetNumberOfChips %d\n",ilayer,detType,idet,fNChips,segm->GetMaximumChipIndex(),segm->GetNumberOfChips());
2315 if(fChipIsBad) { delete [] fChipIsBad; fChipIsBad=NULL; }
2316 fChipIsBad = new Bool_t[fNChips];
2317 for (Int_t iCh=0;iCh<fNChips;iCh++) {
2318 fChipIsBad[iCh] = calib->IsChipBad(iCh);
2319 if (detType==0 && calibSPDdead->IsChipBad(iCh)) fChipIsBad[iCh] = kTRUE; // TEMPORARY
4187a601 2320 //if(fChipIsBad[iCh]) {printf("lay %d det %d bad chip %d\n",ilayer,idet,iCh);}
23197852 2321 }
2322
2323 return;
2324}
2325//------------------------------------------------------------------------
e50912db 2326Double_t AliITStrackerMI::GetEffectiveThickness()
e43c066c 2327{
2328 //--------------------------------------------------------------------
afd25725 2329 // Returns the thickness between the current layer and the vertex (units X0)
e43c066c 2330 //--------------------------------------------------------------------
e43c066c 2331
e50912db 2332 if(fUseTGeo!=0) {
2333 if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers");
2334 if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields");
2335 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
2336 }
2337
afd25725 2338 // beam pipe
e50912db 2339 Double_t dPipe = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe);
2340 Double_t d=dPipe*AliITSRecoParam::GetrPipe()*AliITSRecoParam::GetrPipe();
afd25725 2341
2342 // layers
2343 Double_t x0=0;
e43c066c 2344 Double_t xn=fgLayers[fI].GetR();
2345 for (Int_t i=0; i<fI; i++) {
2346 Double_t xi=fgLayers[i].GetR();
e50912db 2347 Double_t dLayer = (fUseTGeo==0 ? fgLayers[i].GetThickness(0,0,x0) : fxOverX0Layer[i]);
2348 d+=dLayer*xi*xi;
e43c066c 2349 }
2350
afd25725 2351 // shields
e43c066c 2352 if (fI>1) {
e50912db 2353 Double_t dshieldSPD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]);
2354 d+=dshieldSPD*AliITSRecoParam::GetrInsideShield(0)*AliITSRecoParam::GetrInsideShield(0);
e43c066c 2355 }
e43c066c 2356 if (fI>3) {
e50912db 2357 Double_t dshieldSDD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]);
2358 d+=dshieldSDD*AliITSRecoParam::GetrInsideShield(1)*AliITSRecoParam::GetrInsideShield(1);
e43c066c 2359 }
e43c066c 2360 return d/(xn*xn);
2361}
a4354152 2362
2363//------------------------------------------------------------------------
2364Int_t AliITStrackerMI::GetEffectiveThicknessLbyL(Double_t* xMS, Double_t* x2x0MS)
2365{
2366 //--------------------------------------------------------------------
2367 // Returns the array of layers between the current layer and the vertex
2368 //--------------------------------------------------------------------
2369 //
2370 if(fUseTGeo!=0) {
2371 if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers");
2372 if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields");
2373 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
2374 }
2375
2376 int nl = 0;
2377 double x0 = 0;
2378 for (int il=fI;il--;) {
2379 //
2380 if (il==3) {
2381 x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]);
2382 xMS[nl++] = AliITSRecoParam::GetrInsideShield(1);
2383 }
2384 else if (il==1) {
2385 x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]);
2386 xMS[nl++] = AliITSRecoParam::GetrInsideShield(0);
2387 }
2388 //
2389 x2x0MS[nl] = (fUseTGeo==0 ? fgLayers[il].GetThickness(0,0,x0) : fxOverX0Layer[il]);
2390 xMS[nl++] = fgLayers[il].GetR();
2391 //
2392 }
2393 //
2394 // beam pipe
2395 x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe);
2396 xMS[nl++] = AliITSRecoParam::GetrPipe();
2397 //
2398 return nl;
2399}
2400
2401
44347160 2402//------------------------------------------------------------------------
e43c066c 2403Int_t AliITStrackerMI::AliITSlayer::InRoad() const {
ae00569a 2404 //-------------------------------------------------------------------
e43c066c 2405 // This function returns number of clusters within the "window"
2406 //--------------------------------------------------------------------
2407 Int_t ncl=0;
2408 for (Int_t i=fI; i<fN; i++) {
00a7cc50 2409 const AliITSRecPoint *c=fClusters[i];
e43c066c 2410 if (c->GetZ() > fZmax) break;
2411 if (c->IsUsed()) continue;
2412 const AliITSdetector &det=GetDetector(c->GetDetectorIndex());
2413 Double_t y=fR*det.GetPhi() + c->GetY();
2414
2415 if (y>2.*fR*TMath::Pi()) y -= 2*fR*TMath::Pi();
2416 if (y>1.*fR*TMath::Pi() && fYmax<y) y -= 2*fR*TMath::Pi();
2417
2418 if (y<fYmin) continue;
2419 if (y>fYmax) continue;
2420 ncl++;
2421 }
2422 return ncl;
2423}
44347160 2424//------------------------------------------------------------------------
ae00569a 2425Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 2426 const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 2427{
e43c066c 2428 //--------------------------------------------------------------------
ae00569a 2429 // This function refits the track "track" at the position "x" using
2430 // the clusters from "clusters"
ef7253ac 2431 // If "extra"==kTRUE,
ae00569a 2432 // the clusters from overlapped modules get attached to "track"
7167ae53 2433 // If "planeff"==kTRUE,
2434 // special approach for plane efficiency evaluation is applyed
e43c066c 2435 //--------------------------------------------------------------------
6518a6c5 2436
e50912db 2437 Int_t index[AliITSgeomTGeo::kNLayers];
e43c066c 2438 Int_t k;
e50912db 2439 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
ae00569a 2440 Int_t nc=clusters->GetNumberOfClusters();
e43c066c 2441 for (k=0; k<nc; k++) {
ae00569a 2442 Int_t idx=clusters->GetClusterIndex(k);
2443 Int_t ilayer=(idx&0xf0000000)>>28;
2444 index[ilayer]=idx;
e43c066c 2445 }
67c1e979 2446
7167ae53 2447 return RefitAt(xx,track,index,extra,planeeff); // call the method below
67c1e979 2448}
44347160 2449//------------------------------------------------------------------------
ae00569a 2450Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 2451 const Int_t *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 2452{
67c1e979 2453 //--------------------------------------------------------------------
ae00569a 2454 // This function refits the track "track" at the position "x" using
67c1e979 2455 // the clusters from array
ae00569a 2456 // If "extra"==kTRUE,
2457 // the clusters from overlapped modules get attached to "track"
7167ae53 2458 // If "planeff"==kTRUE,
2459 // special approach for plane efficiency evaluation is applyed
67c1e979 2460 //--------------------------------------------------------------------
e50912db 2461 Int_t index[AliITSgeomTGeo::kNLayers];
67c1e979 2462 Int_t k;
e50912db 2463 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
67c1e979 2464 //
e50912db 2465 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
ae00569a 2466 index[k]=clusters[k];
67c1e979 2467 }
2468
74008278 2469 // special for cosmics and TPC prolonged tracks:
269709f8 2470 // propagate to the innermost of:
2471 // - innermost layer crossed by the track
2472 // - innermost layer where a cluster was associated to the track
74008278 2473 static AliITSRecoParam *repa = NULL;
2474 if(!repa){
2475 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
2476 if(!repa){
2477 repa = AliITSRecoParam::GetHighFluxParam();
2478 AliWarning("Using default AliITSRecoParam class");
2479 }
2480 }
2481 Int_t evsp=repa->GetEventSpecie();
15f91fcd 2482 ULong_t trStatus=0;
2483 if(track->GetESDtrack()) trStatus=track->GetStatus();
74008278 2484 Int_t innermostlayer=0;
15f91fcd 2485 if((evsp&AliRecoParam::kCosmic) || (trStatus&AliESDtrack::kTPCin)) {
74008278 2486 innermostlayer=5;
2487 Double_t drphi = TMath::Abs(track->GetD(0.,0.));
2488 for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) {
269709f8 2489 if( (drphi < (fgLayers[innermostlayer].GetR()+1.)) ||
2490 index[innermostlayer] >= 0 ) break;
74008278 2491 }
269709f8 2492
74008278 2493 AliDebug(2,Form(" drphi %f innermost %d",drphi,innermostlayer));
ae00569a 2494 }
afd25725 2495
ae00569a 2496 Int_t modstatus=1; // found
2497 Float_t xloc,zloc;
67c1e979 2498 Int_t from, to, step;
ae00569a 2499 if (xx > track->GetX()) {
e50912db 2500 from=innermostlayer; to=AliITSgeomTGeo::GetNLayers();
67c1e979 2501 step=+1;
2502 } else {
e50912db 2503 from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1;
67c1e979 2504 step=-1;
2505 }
ae00569a 2506 TString dir = (step>0 ? "outward" : "inward");
67c1e979 2507
ae00569a 2508 for (Int_t ilayer = from; ilayer != to; ilayer += step) {
6518a6c5 2509 AliITSlayer &layer=fgLayers[ilayer];
67c1e979 2510 Double_t r=layer.GetR();
4fa7f7d1 2511
afd25725 2512 if (step<0 && xx>r) break;
2513
2514 // material between SSD and SDD, SDD and SPD
6518a6c5 2515 Double_t hI=ilayer-0.5*step;
e50912db 2516 if (TMath::Abs(hI-3.5)<0.01) // SDDouter
ae00569a 2517 if(!CorrectForShieldMaterial(track,"SDD",dir)) return kFALSE;
e50912db 2518 if (TMath::Abs(hI-1.5)<0.01) // SPDouter
ae00569a 2519 if(!CorrectForShieldMaterial(track,"SPD",dir)) return kFALSE;
67c1e979 2520
ae00569a 2521
afd25725 2522 Double_t oldGlobXYZ[3];
d1181f10 2523 if (!track->GetXYZ(oldGlobXYZ)) return kFALSE;
afd25725 2524
67178f34 2525 // continue if we are already beyond this layer
2526 Double_t oldGlobR = TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
2527 if(step>0 && oldGlobR > r) continue; // going outward
2528 if(step<0 && oldGlobR < r) continue; // going inward
2529
8602c008 2530 Double_t phi,z;
ae00569a 2531 if (!track->GetPhiZat(r,phi,z)) return kFALSE;
67c1e979 2532
67c1e979 2533 Int_t idet=layer.FindDetectorIndex(phi,z);
6518a6c5 2534
2535 // check if we allow a prolongation without point for large-eta tracks
ae00569a 2536 Int_t skip = CheckSkipLayer(track,ilayer,idet);
6518a6c5 2537 if (skip==2) {
ae00569a 2538 modstatus = 4; // out in z
d1181f10 2539 if(LocalModuleCoord(ilayer,idet,track,xloc,zloc)) { // local module coords
2540 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2541 }
7131593b 2542 // cross layer
2543 // apply correction for material of the current layer
2544 // add time if going outward
2545 CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir);
6518a6c5 2546 continue;
2547 }
2548
e50912db 2549 if (idet<0) return kFALSE;
ae00569a 2550
4fa7f7d1 2551
67c1e979 2552 const AliITSdetector &det=layer.GetDetector(idet);
545af9ef 2553 // only for ITS-SA tracks refit
2554 if (ilayer>1 && fTrackingPhase.Contains("RefitInward") && !(track->GetStatus()&AliESDtrack::kTPCin)) track->SetCheckInvariant(kFALSE);
2555 //
1c97ce2f 2556 if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
23197852 2557
ae00569a 2558 track->SetDetectorIndex(idet);
d1181f10 2559 if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
67c1e979 2560
23197852 2561 Double_t dz,zmin,zmax,dy,ymin,ymax;
ae00569a 2562
2563 const AliITSRecPoint *clAcc=0;
44347160 2564 Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
67c1e979 2565
6518a6c5 2566 Int_t idx=index[ilayer];
ae00569a 2567 if (idx>=0) { // cluster in this layer
2568 modstatus = 6; // no refit
2569 const AliITSRecPoint *cl=(AliITSRecPoint *)GetCluster(idx);
2570 if (cl) {
2571 if (idet != cl->GetDetectorIndex()) {
2572 idet=cl->GetDetectorIndex();
a5d0fae6 2573 const AliITSdetector &detc=layer.GetDetector(idet);
2574 if (!track->Propagate(detc.GetPhi(),detc.GetR())) return kFALSE;
ae00569a 2575 track->SetDetectorIndex(idet);
d1181f10 2576 if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
ae00569a 2577 }
ae00569a 2578 Int_t cllayer = (idx & 0xf0000000) >> 28;;
2579 Double_t chi2=GetPredictedChi2MI(track,cl,cllayer);
2580 if (chi2<maxchi2) {
2581 clAcc=cl;
2582 maxchi2=chi2;
2583 modstatus = 1; // found
2584 } else {
7167ae53 2585 return kFALSE; //
ae00569a 2586 }
2587 }
2588 } else { // no cluster in this layer
2589 if (skip==1) {
2590 modstatus = 3; // skipped
0ed58a47 2591 // Plane Eff determination:
2592 if (planeeff && ilayer==AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()) {
2593 if (IsOKForPlaneEff(track,clusters,ilayer)) // only adequate track for plane eff. evaluation
2594 UseTrackForPlaneEff(track,ilayer);
7167ae53 2595 }
ae00569a 2596 } else {
2597 modstatus = 5; // no cls in road
2598 // check dead
1c97ce2f 2599 if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
2600 dz = 0.5*(zmax-zmin);
2601 dy = 0.5*(ymax-ymin);
2602 Int_t dead = CheckDeadZone(track,ilayer,idet,dz,dy,kTRUE);
ae00569a 2603 if (dead==1) modstatus = 7; // holes in z in SPD
f8720bda 2604 if (dead==2 || dead==3 || dead==4) modstatus = 2; // dead from OCDB
ae00569a 2605 }
e43c066c 2606 }
ae00569a 2607
2608 if (clAcc) {
2609 if (!UpdateMI(track,clAcc,maxchi2,idx)) return kFALSE;
09cf9d66 2610 track->SetSampledEdx(clAcc->GetQ(),ilayer-2);
e43c066c 2611 }
ae00569a 2612 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2613
2614
ef3508c5 2615 if (extra && clAcc) { // search for extra clusters in overlapped modules
ae00569a 2616 AliITStrackV2 tmp(*track);
1c97ce2f 2617 if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
2618 layer.SelectClusters(zmin,zmax,ymin,ymax);
ae00569a 2619
2620 const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1;
2621 Int_t idetExtra=-1;
a5d0fae6 2622 maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
2623 Double_t tolerance=0.1;
ae00569a 2624 while ((clExtra=layer.GetNextCluster(ci))!=0) {
2625 // only clusters in another module! (overlaps)
2626 idetExtra = clExtra->GetDetectorIndex();
2627 if (idet == idetExtra) continue;
2628
a5d0fae6 2629 const AliITSdetector &detx=layer.GetDetector(idetExtra);
ae00569a 2630
1c97ce2f 2631 if (!tmp.Propagate(detx.GetPhi(),detx.GetR()+clExtra->GetX())) continue;
ae00569a 2632 if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue;
2633 if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) continue;
1c97ce2f 2634 if (!tmp.Propagate(detx.GetPhi(),detx.GetR())) continue;
ae00569a 2635
2636 Double_t chi2=tmp.GetPredictedChi2(clExtra);
2637 if (chi2<maxchi2) { maxchi2=chi2; cci=ci; }
2638 }
2639 if (cci>=0) {
2640 track->SetExtraCluster(ilayer,(ilayer<<28)+cci);
2641 track->SetExtraModule(ilayer,idetExtra);
2642 }
2643 } // end search for extra clusters in overlapped modules
1c97ce2f 2644
afd25725 2645 // Correct for material of the current layer
7131593b 2646 // cross material
2647 // add time if going outward
ae00569a 2648 if(!CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir)) return kFALSE;
545af9ef 2649 track->SetCheckInvariant(kTRUE);
ae00569a 2650 } // end loop on layers
2651
db355ee7 2652 if (!track->PropagateTo(xx,0.,0.)) return kFALSE;
e43c066c 2653
e43c066c 2654 return kTRUE;
2655}
44347160 2656//------------------------------------------------------------------------
15dd636f 2657Double_t AliITStrackerMI::GetNormalizedChi2(AliITStrackMI * track, Int_t mode)
e43c066c 2658{
2659 //
2660 // calculate normalized chi2
2661 // return NormalizedChi2(track,0);
2662 Float_t chi2 = 0;
2663 Float_t sum=0;
2664 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2665 // track->fdEdxMismatch=0;
2666 Float_t dedxmismatch =0;
2667 Float_t *ny = GetNy(fCurrentEsdTrack), *nz = GetNz(fCurrentEsdTrack);
2668 if (mode<100){
2669 for (Int_t i = 0;i<6;i++){
9fd412a8 2670 if (track->GetClIndex(i)>=0){
e43c066c 2671 Float_t cerry, cerrz;
2672 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
2673 else
b9671574 2674 { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2675 cerry*=cerry;
2676 cerrz*=cerrz;
b9671574 2677 Float_t cchi2 = (track->GetDy(i)*track->GetDy(i)/cerry)+(track->GetDz(i)*track->GetDz(i)/cerrz);
572f41f9 2678 if (i>1 && AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(i)) {
b9671574 2679 Float_t ratio = track->GetNormQ(i)/track->GetExpQ();
e43c066c 2680 if (ratio<0.5) {
2681 cchi2+=(0.5-ratio)*10.;
2682 //track->fdEdxMismatch+=(0.5-ratio)*10.;
2683 dedxmismatch+=(0.5-ratio)*10.;
2684 }
2685 }
2686 if (i<2 ||i>3){
b9671574 2687 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster( track->GetClIndex(i));
e43c066c 2688 Double_t delta = cl->GetNy()+cl->GetNz()-ny[i]-nz[i];
2689 if (delta>1) chi2 +=0.5*TMath::Min(delta/2,2.);
2690 if (i<2) chi2+=2*cl->GetDeltaProbability();
2691 }
2692 chi2+=cchi2;
2693 sum++;
2694 }
2695 }
b9671574 2696 if (TMath::Abs(track->GetdEdxMismatch()-dedxmismatch)>0.0001){
2697 track->SetdEdxMismatch(dedxmismatch);
e43c066c 2698 }
2699 }
2700 else{
2701 for (Int_t i = 0;i<4;i++){
9fd412a8 2702 if (track->GetClIndex(i)>=0){
e43c066c 2703 Float_t cerry, cerrz;
2704 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2705 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2706 cerry*=cerry;
2707 cerrz*=cerrz;
b9671574 2708 chi2+= (track->GetDy(i)*track->GetDy(i)/cerry);
2709 chi2+= (track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2710 sum++;
2711 }
2712 }
2713 for (Int_t i = 4;i<6;i++){
9fd412a8 2714 if (track->GetClIndex(i)>=0){
e43c066c 2715 Float_t cerry, cerrz;
2716 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2717 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2718 cerry*=cerry;
2719 cerrz*=cerrz;
2720 Float_t cerryb, cerrzb;
2721 if (ny[i+6]>0) {cerryb = erry[i+6]; cerrzb=errz[i+6];}
b9671574 2722 else { cerryb= track->GetSigmaY(i+6); cerrzb = track->GetSigmaZ(i+6);}
e43c066c 2723 cerryb*=cerryb;
2724 cerrzb*=cerrzb;
b9671574 2725 chi2+= TMath::Min((track->GetDy(i+6)*track->GetDy(i+6)/cerryb),track->GetDy(i)*track->GetDy(i)/cerry);
2726 chi2+= TMath::Min((track->GetDz(i+6)*track->GetDz(i+6)/cerrzb),track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2727 sum++;
2728 }
2729 }
2730 }
b9671574 2731 if (track->GetESDtrack()->GetTPCsignal()>85){
2732 Float_t ratio = track->GetdEdx()/track->GetESDtrack()->GetTPCsignal();
e43c066c 2733 if (ratio<0.5) {
2734 chi2+=(0.5-ratio)*5.;
2735 }
2736 if (ratio>2){
2737 chi2+=(ratio-2.0)*3;
2738 }
2739 }
2740 //
b9671574 2741 Double_t match = TMath::Sqrt(track->GetChi22());
2742 if (track->GetConstrain()) match/=track->GetNumberOfClusters();
2755f080 2743 if (!track->GetConstrain()) {
2744 if (track->GetNumberOfClusters()>2) {
2745 match/=track->GetNumberOfClusters()-2.;
2746 } else {
2747 match=0;
2748 }
2749 }
e43c066c 2750 if (match<0) match=0;
f8720bda 2751
2752 // penalty factor for missing points (NDeadZone>0), but no penalty
2753 // for layer with deadZoneProb close to 1 (either we wanted to skip layer
2754 // or there is a dead from OCDB)
2755 Float_t deadzonefactor = 0.;
2756 if (track->GetNDeadZone()>0.) {
bf1cd124 2757 Int_t sumDeadZoneProbability=0;
2758 for(Int_t ilay=0;ilay<6;ilay++) {
2759 if(track->GetDeadZoneProbability(ilay)>0.) sumDeadZoneProbability++;
2760 }
2761 Int_t nDeadZoneWithProbNot1=(Int_t)(track->GetNDeadZone())-sumDeadZoneProbability;
2762 if(nDeadZoneWithProbNot1>0) {
2763 Float_t deadZoneProbability = track->GetNDeadZone()-(Float_t)sumDeadZoneProbability;
a5a317a9 2764 AliDebug(2,Form("nDeadZone %f sumDZProbability %d nDZWithProbNot1 %d deadZoneProb %f\n",track->GetNDeadZone(),sumDeadZoneProbability,nDeadZoneWithProbNot1,deadZoneProbability));
bf1cd124 2765 deadZoneProbability /= (Float_t)nDeadZoneWithProbNot1;
2766 Float_t one = 1.;
2767 deadZoneProbability = TMath::Min(deadZoneProbability,one);
f8720bda 2768 deadzonefactor = 3.*(1.1-deadZoneProbability);
2769 }
2770 }
2771
b9671574 2772 Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())*
2773 (chi2)/TMath::Max(double(sum-track->GetNSkipped()),
2774 1./(1.+track->GetNSkipped()));
a5a317a9 2775 AliDebug(2,Form("match %f deadzonefactor %f chi2 %f sum %f skipped %f\n",match,deadzonefactor,chi2,sum,track->GetNSkipped()));
bf1cd124 2776 AliDebug(2,Form("NormChi2 %f cls %d\n",normchi2,track->GetNumberOfClusters()));
2777 return normchi2;
e43c066c 2778}
44347160 2779//------------------------------------------------------------------------
a70ed6ad 2780Double_t AliITStrackerMI::GetMatchingChi2(const AliITStrackMI * track1,const AliITStrackMI * track2)
e43c066c 2781{
2782 //
2783 // return matching chi2 between two tracks
d1181f10 2784 Double_t largeChi2=1000.;
2785
15dd636f 2786 AliITStrackMI track3(*track2);
d1181f10 2787 if (!track3.Propagate(track1->GetAlpha(),track1->GetX())) return largeChi2;
e43c066c 2788 TMatrixD vec(5,1);
6c94f330 2789 vec(0,0)=track1->GetY() - track3.GetY();
2790 vec(1,0)=track1->GetZ() - track3.GetZ();
2791 vec(2,0)=track1->GetSnp() - track3.GetSnp();
2792 vec(3,0)=track1->GetTgl() - track3.GetTgl();
6c23ffed 2793 vec(4,0)=track1->GetSigned1Pt() - track3.GetSigned1Pt();
e43c066c 2794 //
2795 TMatrixD cov(5,5);
6c94f330 2796 cov(0,0) = track1->GetSigmaY2()+track3.GetSigmaY2();
2797 cov(1,1) = track1->GetSigmaZ2()+track3.GetSigmaZ2();
2798 cov(2,2) = track1->GetSigmaSnp2()+track3.GetSigmaSnp2();
2799 cov(3,3) = track1->GetSigmaTgl2()+track3.GetSigmaTgl2();
2800 cov(4,4) = track1->GetSigma1Pt2()+track3.GetSigma1Pt2();
e43c066c 2801
6c94f330 2802 cov(0,1)=cov(1,0) = track1->GetSigmaZY()+track3.GetSigmaZY();
2803 cov(0,2)=cov(2,0) = track1->GetSigmaSnpY()+track3.GetSigmaSnpY();
2804 cov(0,3)=cov(3,0) = track1->GetSigmaTglY()+track3.GetSigmaTglY();
2805 cov(0,4)=cov(4,0) = track1->GetSigma1PtY()+track3.GetSigma1PtY();
e43c066c 2806 //
6c94f330 2807 cov(1,2)=cov(2,1) = track1->GetSigmaSnpZ()+track3.GetSigmaSnpZ();
2808 cov(1,3)=cov(3,1) = track1->GetSigmaTglZ()+track3.GetSigmaTglZ();
2809 cov(1,4)=cov(4,1) = track1->GetSigma1PtZ()+track3.GetSigma1PtZ();
e43c066c 2810 //
6c94f330 2811 cov(2,3)=cov(3,2) = track1->GetSigmaTglSnp()+track3.GetSigmaTglSnp();
2812 cov(2,4)=cov(4,2) = track1->GetSigma1PtSnp()+track3.GetSigma1PtSnp();
e43c066c 2813 //
6c94f330 2814 cov(3,4)=cov(4,3) = track1->GetSigma1PtTgl()+track3.GetSigma1PtTgl();
e43c066c 2815
2816 cov.Invert();
2817 TMatrixD vec2(cov,TMatrixD::kMult,vec);
2818 TMatrixD chi2(vec2,TMatrixD::kTransposeMult,vec);
2819 return chi2(0,0);
2820}
44347160 2821//------------------------------------------------------------------------
a70ed6ad 2822Double_t AliITStrackerMI::GetSPDDeadZoneProbability(Double_t zpos, Double_t zerr) const
e43c066c 2823{
2824 //
afd25725 2825 // return probability that given point (characterized by z position and error)
2826 // is in SPD dead zone
bf1cd124 2827 // This method assumes that fSPDdetzcentre is ordered from -z to +z
e43c066c 2828 //
afd25725 2829 Double_t probability = 0.;
bf1cd124 2830 Double_t nearestz = 0.,distz=0.;
2831 Int_t nearestzone = -1;
2832 Double_t mindistz = 1000.;
2833
2834 // find closest dead zone
2835 for (Int_t i=0; i<3; i++) {
2836 distz=TMath::Abs(zpos-0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1]));
2837 if (distz<mindistz) {
2838 nearestzone=i;
2839 nearestz=0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1]);
2840 mindistz=distz;
2841 }
2842 }
2843
2844 // too far from dead zone
2845 if (TMath::Abs(zpos-nearestz)>0.25+3.*zerr) return probability;
2846
2847
afd25725 2848 Double_t zmin, zmax;
bf1cd124 2849 if (nearestzone==0) { // dead zone at z = -7
e50912db 2850 zmin = fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2851 zmax = fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength();
bf1cd124 2852 } else if (nearestzone==1) { // dead zone at z = 0
e50912db 2853 zmin = fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2854 zmax = fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength();
bf1cd124 2855 } else if (nearestzone==2) { // dead zone at z = +7
2856 zmin = fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2857 zmax = fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2858 } else {
2859 zmin = 0.;
2860 zmax = 0.;
e43c066c 2861 }
afd25725 2862 // probability that the true z is in the range [zmin,zmax] (i.e. inside
2863 // dead zone)
bb7e41dd 2864 probability = 0.5*( AliMathBase::ErfFast((zpos-zmin)/zerr/TMath::Sqrt(2.)) -
2865 AliMathBase::ErfFast((zpos-zmax)/zerr/TMath::Sqrt(2.)) );
bf1cd124 2866 AliDebug(2,Form("zpos %f +- %f nearestzone %d zmin zmax %f %f prob %f\n",zpos,zerr,nearestzone,zmin,zmax,probability));
e43c066c 2867 return probability;
2868}
44347160 2869//------------------------------------------------------------------------
a70ed6ad 2870Double_t AliITStrackerMI::GetTruncatedChi2(const AliITStrackMI * track, Float_t fac)
e43c066c 2871{
2872 //
2873 // calculate normalized chi2
2874 Float_t chi2[6];
2875 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2876 Float_t ncl = 0;
2877 for (Int_t i = 0;i<6;i++){
b9671574 2878 if (TMath::Abs(track->GetDy(i))>0){
2879 chi2[i]= (track->GetDy(i)/erry[i])*(track->GetDy(i)/erry[i]);
2880 chi2[i]+= (track->GetDz(i)/errz[i])*(track->GetDz(i)/errz[i]);
e43c066c 2881 ncl++;
2882 }
2883 else{chi2[i]=10000;}
2884 }
2885 Int_t index[6];
2886 TMath::Sort(6,chi2,index,kFALSE);
2887 Float_t max = float(ncl)*fac-1.;
2888 Float_t sumchi=0, sumweight=0;
2889 for (Int_t i=0;i<max+1;i++){
2890 Float_t weight = (i<max)?1.:(max+1.-i);
2891 sumchi+=weight*chi2[index[i]];
2892 sumweight+=weight;
2893 }
2894 Double_t normchi2 = sumchi/sumweight;
2895 return normchi2;
2896}
44347160 2897//------------------------------------------------------------------------
a70ed6ad 2898Double_t AliITStrackerMI::GetInterpolatedChi2(const AliITStrackMI * forwardtrack,const AliITStrackMI * backtrack)
e43c066c 2899{
2900 //
2901 // calculate normalized chi2
2902 // if (forwardtrack->fNUsed>0.3*float(forwardtrack->GetNumberOfClusters())) return 10000;
2903 Int_t npoints = 0;
2904 Double_t res =0;
2905 for (Int_t i=0;i<6;i++){
b9671574 2906 if ( (backtrack->GetSigmaY(i)<0.000000001) || (forwardtrack->GetSigmaY(i)<0.000000001)) continue;
2907 Double_t sy1 = forwardtrack->GetSigmaY(i);
2908 Double_t sz1 = forwardtrack->GetSigmaZ(i);
2909 Double_t sy2 = backtrack->GetSigmaY(i);
2910 Double_t sz2 = backtrack->GetSigmaZ(i);
e43c066c 2911 if (i<2){ sy2=1000.;sz2=1000;}
2912 //
b9671574 2913 Double_t dy0 = (forwardtrack->GetDy(i)/(sy1*sy1) +backtrack->GetDy(i)/(sy2*sy2))/(1./(sy1*sy1)+1./(sy2*sy2));
2914 Double_t dz0 = (forwardtrack->GetDz(i)/(sz1*sz1) +backtrack->GetDz(i)/(sz2*sz2))/(1./(sz1*sz1)+1./(sz2*sz2));
e43c066c 2915 //
2916 Double_t nz0 = dz0*TMath::Sqrt((1./(sz1*sz1)+1./(sz2*sz2)));
2917 Double_t ny0 = dy0*TMath::Sqrt((1./(sy1*sy1)+1./(sy2*sy2)));
2918 //
2919 res+= nz0*nz0+ny0*ny0;
2920 npoints++;
2921 }
2922 if (npoints>1) return
6c23ffed 2923 TMath::Max(0.3*forwardtrack->OneOverPt()-0.5,0.)+
e43c066c 2924 //2*forwardtrack->fNUsed+
b9671574 2925 res/TMath::Max(double(npoints-forwardtrack->GetNSkipped()),
2926 1./(1.+forwardtrack->GetNSkipped()));
e43c066c 2927 return 1000;
2928}
44347160 2929//------------------------------------------------------------------------
e43c066c 2930Float_t *AliITStrackerMI::GetWeight(Int_t index) {
2931 //--------------------------------------------------------------------
2932 // Return pointer to a given cluster
2933 //--------------------------------------------------------------------
2934 Int_t l=(index & 0xf0000000) >> 28;
2935 Int_t c=(index & 0x0fffffff) >> 00;
2936 return fgLayers[l].GetWeight(c);
2937}
44347160 2938//------------------------------------------------------------------------
a70ed6ad 2939void AliITStrackerMI::RegisterClusterTracks(const AliITStrackMI* track,Int_t id)
e43c066c 2940{
2941 //---------------------------------------------
2942 // register track to the list
628e7bb0 2943 //
b9671574 2944 if (track->GetESDtrack()->GetKinkIndex(0)!=0) return; //don't register kink tracks
628e7bb0 2945 //
2946 //
e43c066c 2947 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2948 Int_t index = track->GetClusterIndex(icluster);
2949 Int_t l=(index & 0xf0000000) >> 28;
2950 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2951 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2952 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2953 if (fgLayers[l].GetClusterTracks(itrack,c)<0){
2954 fgLayers[l].SetClusterTracks(itrack,c,id);
e43c066c 2955 break;
2956 }
2957 }
2958 }
2959}
44347160 2960//------------------------------------------------------------------------
a70ed6ad 2961void AliITStrackerMI::UnRegisterClusterTracks(const AliITStrackMI* track, Int_t id)
e43c066c 2962{
2963 //---------------------------------------------
2964 // unregister track from the list
2965 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2966 Int_t index = track->GetClusterIndex(icluster);
2967 Int_t l=(index & 0xf0000000) >> 28;
2968 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2969 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2970 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2971 if (fgLayers[l].GetClusterTracks(itrack,c)==id){
2972 fgLayers[l].SetClusterTracks(itrack,c,-1);
e43c066c 2973 }
2974 }
2975 }
2976}
44347160 2977//------------------------------------------------------------------------
00a7cc50 2978Float_t AliITStrackerMI::GetNumberOfSharedClusters(AliITStrackMI* track,Int_t id, Int_t list[6], AliITSRecPoint *clist[6])
e43c066c 2979{
2980 //-------------------------------------------------------------
2981 //get number of shared clusters
2982 //-------------------------------------------------------------
2983 Float_t shared=0;
2984 for (Int_t i=0;i<6;i++) { list[i]=-1, clist[i]=0;}
2985 // mean number of clusters
2986 Float_t *ny = GetNy(id), *nz = GetNz(id);
2987
2988
2989 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2990 Int_t index = track->GetClusterIndex(icluster);
2991 Int_t l=(index & 0xf0000000) >> 28;
2992 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2993 if (c>fgLayers[l].GetNumberOfClusters()) continue;
5668b5b2 2994 // if (ny[l]<1.e-13){
2995 // printf("problem\n");
2996 // }
00a7cc50 2997 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2998 Float_t weight=1;
2999 //
3000 Float_t deltan = 0;
3001 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 3002 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
3003 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 3004 if (l<2 || l>3){
3005 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
3006 }
3007 else{
3008 deltan = (cl->GetNz()-nz[l]);
3009 }
3010 if (deltan>2.0) continue; // extended - highly probable shared cluster
3011 weight = 2./TMath::Max(3.+deltan,2.);
3012 //
3013 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 3014 if (fgLayers[l].GetClusterTracks(itrack,c)>=0 && fgLayers[l].GetClusterTracks(itrack,c)!=id){
e43c066c 3015 list[l]=index;
00a7cc50 3016 clist[l] = (AliITSRecPoint*)GetCluster(index);
25015f7a 3017 track->SetSharedWeight(l,weight);
e43c066c 3018 shared+=weight;
3019 break;
3020 }
3021 }
3022 }
b9671574 3023 track->SetNUsed(shared);
e43c066c 3024 return shared;
3025}
44347160 3026//------------------------------------------------------------------------
a70ed6ad 3027Int_t AliITStrackerMI::GetOverlapTrack(const AliITStrackMI *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6],Int_t overlist[6])
e43c066c 3028{
3029 //
3030 // find first shared track
3031 //
3032 // mean number of clusters
3033 Float_t *ny = GetNy(trackID), *nz = GetNz(trackID);
3034 //
3035 for (Int_t i=0;i<6;i++) overlist[i]=-1;
3036 Int_t sharedtrack=100000;
3037 Int_t tracks[24],trackindex=0;
3038 for (Int_t i=0;i<24;i++) {tracks[i]=-1;}
3039 //
3040 for (Int_t icluster=0;icluster<6;icluster++){
3041 if (clusterlist[icluster]<0) continue;
3042 Int_t index = clusterlist[icluster];
3043 Int_t l=(index & 0xf0000000) >> 28;
3044 Int_t c=(index & 0x0fffffff) >> 00;
5668b5b2 3045 // if (ny[l]<1.e-13){
3046 // printf("problem\n");
3047 // }
b9671574 3048 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 3049 //if (l>3) continue;
00a7cc50 3050 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 3051 //
3052 Float_t deltan = 0;
3053 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 3054 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
3055 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 3056 if (l<2 || l>3){
3057 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
3058 }
3059 else{
3060 deltan = (cl->GetNz()-nz[l]);
3061 }
3062 if (deltan>2.0) continue; // extended - highly probable shared cluster
3063 //
3064 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 3065 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
3066 if (fgLayers[l].GetClusterTracks(itrack,c)!=trackID){
3067 tracks[trackindex] = fgLayers[l].GetClusterTracks(itrack,c);
e43c066c 3068 trackindex++;
3069 }
3070 }
3071 }
3072 if (trackindex==0) return -1;
3073 if (trackindex==1){
3074 sharedtrack = tracks[0];
3075 }else{
3076 if (trackindex==2) sharedtrack =TMath::Min(tracks[0],tracks[1]);
3077 else{
3078 //
a5d0fae6 3079 Int_t tracks2[24], cluster[24];
3080 for (Int_t i=0;i<trackindex;i++){ tracks2[i]=-1; cluster[i]=0;}
e43c066c 3081 Int_t index =0;
3082 //
3083 for (Int_t i=0;i<trackindex;i++){
3084 if (tracks[i]<0) continue;
a5d0fae6 3085 tracks2[index] = tracks[i];
e43c066c 3086 cluster[index]++;
3087 for (Int_t j=i+1;j<trackindex;j++){
3088 if (tracks[j]<0) continue;
3089 if (tracks[j]==tracks[i]){
3090 cluster[index]++;
3091 tracks[j]=-1;
3092 }
3093 }
3094 index++;
3095 }
3096 Int_t max=0;
3097 for (Int_t i=0;i<index;i++){
3098 if (cluster[index]>max) {
a5d0fae6 3099 sharedtrack=tracks2[index];
e43c066c 3100 max=cluster[index];
3101 }
3102 }
3103 }
3104 }
3105
3106 if (sharedtrack>=100000) return -1;
3107 //
3108 // make list of overlaps
3109 shared =0;
3110 for (Int_t icluster=0;icluster<6;icluster++){
3111 if (clusterlist[icluster]<0) continue;
3112 Int_t index = clusterlist[icluster];
3113 Int_t l=(index & 0xf0000000) >> 28;
3114 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 3115 if (c>fgLayers[l].GetNumberOfClusters()) continue;
00a7cc50 3116 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 3117 if (l==0 || l==1){
3118 if (cl->GetNy()>2) continue;
3119 if (cl->GetNz()>2) continue;
3120 }
3121 if (l==4 || l==5){
3122 if (cl->GetNy()>3) continue;
3123 if (cl->GetNz()>3) continue;
3124 }
3125 //
3126 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 3127 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
3128 if (fgLayers[l].GetClusterTracks(itrack,c)==sharedtrack){
e43c066c 3129 overlist[l]=index;
3130 shared++;
3131 }
3132 }
3133 }
3134 return sharedtrack;
3135}
44347160 3136//------------------------------------------------------------------------
04315dad 3137AliITStrackMI * AliITStrackerMI::GetBest2Tracks(Int_t trackID1, Int_t trackID2, Float_t th0, Float_t th1,AliITStrackMI* original){
e43c066c 3138 //
3139 // try to find track hypothesys without conflicts
3140 // with minimal chi2;
3141 TClonesArray *arr1 = (TClonesArray*)fTrackHypothesys.At(trackID1);
3142 Int_t entries1 = arr1->GetEntriesFast();
3143 TClonesArray *arr2 = (TClonesArray*)fTrackHypothesys.At(trackID2);
15dd636f 3144 if (!arr2) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 3145 Int_t entries2 = arr2->GetEntriesFast();
15dd636f 3146 if (entries2<=0) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 3147 //
15dd636f 3148 AliITStrackMI * track10=(AliITStrackMI*) arr1->UncheckedAt(0);
3149 AliITStrackMI * track20=(AliITStrackMI*) arr2->UncheckedAt(0);
6c23ffed 3150 if (track10->Pt()>0.5+track20->Pt()) return track10;
a4354152 3151 //
e43c066c 3152 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 3153 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 3154 UnRegisterClusterTracks(track,trackID1);
3155 }
3156 //
3157 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 3158 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 3159 UnRegisterClusterTracks(track,trackID2);
3160 }
3161 Int_t index1=0;
3162 Int_t index2=0;
3163 Float_t maxconflicts=6;
3164 Double_t maxchi2 =1000.;
3165 //
3166 // get weight of hypothesys - using best hypothesy
3167 Double_t w1,w2;
3168
3169 Int_t list1[6],list2[6];
00a7cc50 3170 AliITSRecPoint *clist1[6], *clist2[6] ;
e43c066c 3171 RegisterClusterTracks(track10,trackID1);
3172 RegisterClusterTracks(track20,trackID2);
3173 Float_t conflict1 = GetNumberOfSharedClusters(track10,trackID1,list1,clist1);
3174 Float_t conflict2 = GetNumberOfSharedClusters(track20,trackID2,list2,clist2);
3175 UnRegisterClusterTracks(track10,trackID1);
3176 UnRegisterClusterTracks(track20,trackID2);
3177 //
3178 // normalized chi2
3179 Float_t chi21 =0,chi22=0,ncl1=0,ncl2=0;
3180 Float_t nerry[6],nerrz[6];
3181 Float_t *erry1=GetErrY(trackID1),*errz1 = GetErrZ(trackID1);
3182 Float_t *erry2=GetErrY(trackID2),*errz2 = GetErrZ(trackID2);
3183 for (Int_t i=0;i<6;i++){
3184 if ( (erry1[i]>0) && (erry2[i]>0)) {
3185 nerry[i] = TMath::Min(erry1[i],erry2[i]);
3186 nerrz[i] = TMath::Min(errz1[i],errz2[i]);
3187 }else{
3188 nerry[i] = TMath::Max(erry1[i],erry2[i]);
3189 nerrz[i] = TMath::Max(errz1[i],errz2[i]);
3190 }
b9671574 3191 if (TMath::Abs(track10->GetDy(i))>0.000000000000001){
3192 chi21 += track10->GetDy(i)*track10->GetDy(i)/(nerry[i]*nerry[i]);
3193 chi21 += track10->GetDz(i)*track10->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 3194 ncl1++;
3195 }
b9671574 3196 if (TMath::Abs(track20->GetDy(i))>0.000000000000001){
3197 chi22 += track20->GetDy(i)*track20->GetDy(i)/(nerry[i]*nerry[i]);
3198 chi22 += track20->GetDz(i)*track20->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 3199 ncl2++;
3200 }
3201 }
3202 chi21/=ncl1;
3203 chi22/=ncl2;
3204 //
3205 //
b9671574 3206 Float_t d1 = TMath::Sqrt(track10->GetD(0)*track10->GetD(0)+track10->GetD(1)*track10->GetD(1))+0.1;
3207 Float_t d2 = TMath::Sqrt(track20->GetD(0)*track20->GetD(0)+track20->GetD(1)*track20->GetD(1))+0.1;
e43c066c 3208 Float_t s1 = TMath::Sqrt(track10->GetSigmaY2()*track10->GetSigmaZ2());
3209 Float_t s2 = TMath::Sqrt(track20->GetSigmaY2()*track20->GetSigmaZ2());
3210 //
3211 w1 = (d2/(d1+d2)+ 2*s2/(s1+s2)+
3212 +s2/(s1+s2)*0.5*(chi22+2.)/(chi21+chi22+4.)
6c23ffed 3213 +1.*track10->Pt()/(track10->Pt()+track20->Pt())
e43c066c 3214 );
3215 w2 = (d1/(d1+d2)+ 2*s1/(s1+s2)+
3216 s1/(s1+s2)*0.5*(chi21+2.)/(chi21+chi22+4.)
6c23ffed 3217 +1.*track20->Pt()/(track10->Pt()+track20->Pt())
e43c066c 3218 );
3219
3220 Double_t sumw = w1+w2;
3221 w1/=sumw;
3222 w2/=sumw;
3223 if (w1<w2*0.5) {
3224 w1 = (d2+0.5)/(d1+d2+1.);
3225 w2 = (d1+0.5)/(d1+d2+1.);
3226 }
3227 // Float_t maxmax = w1*track10->fChi2MIP[0]+w2*track20->fChi2MIP[0]+w1*conflict1+w2*conflict2+1.;
3228 //Float_t maxconflicts0 = w1*conflict1+w2*conflict2;
3229 //
3230 // get pair of "best" hypothesys
3231 //
3232 Float_t * ny1 = GetNy(trackID1), * nz1 = GetNz(trackID1);
3233 Float_t * ny2 = GetNy(trackID2), * nz2 = GetNz(trackID2);
3234
3235 for (Int_t itrack1=0;itrack1<entries1;itrack1++){
15dd636f 3236 AliITStrackMI * track1=(AliITStrackMI*) arr1->UncheckedAt(itrack1);
e43c066c 3237 //if (track1->fFakeRatio>0) continue;
3238 RegisterClusterTracks(track1,trackID1);
3239 for (Int_t itrack2=0;itrack2<entries2;itrack2++){
15dd636f 3240 AliITStrackMI * track2=(AliITStrackMI*) arr2->UncheckedAt(itrack2);
e43c066c 3241
3242 // Float_t current = w1*track1->fChi2MIP[0]+w2*track2->fChi2MIP[0];
3243 //if (track2->fFakeRatio>0) continue;
3244 Float_t nskipped=0;
3245 RegisterClusterTracks(track2,trackID2);
e43c066c 3246 Float_t cconflict1 = GetNumberOfSharedClusters(track1,trackID1,list1,clist1);
3247 Float_t cconflict2 = GetNumberOfSharedClusters(track2,trackID2,list2,clist2);
3248 UnRegisterClusterTracks(track2,trackID2);
3249 //
b9671574 3250 if (track1->GetConstrain()) nskipped+=w1*track1->GetNSkipped();
3251 if (track2->GetConstrain()) nskipped+=w2*track2->GetNSkipped();
e43c066c 3252 if (nskipped>0.5) continue;
3253 //
3254 //if ( w1*conflict1+w2*conflict2>maxconflicts0) continue;
3255 if (conflict1+1<cconflict1) continue;
3256 if (conflict2+1<cconflict2) continue;
3257 Float_t conflict=0;
3258 Float_t sumchi2=0;
3259 Float_t sum=0;
3260 for (Int_t i=0;i<6;i++){
3261 //
3262 Float_t c1 =0.; // conflict coeficients
3263 Float_t c2 =0.;
3264 if (clist1[i]&&clist2[i]){
3265 Float_t deltan = 0;
3266 if (i<2 || i>3){
3267 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-TMath::Max(ny1[i],ny2[i])-TMath::Max(nz1[i],nz2[i]));
3268 }
3269 else{
3270 deltan = (clist1[i]->GetNz()-TMath::Max(nz1[i],nz2[i]));
3271 }
3272 c1 = 2./TMath::Max(3.+deltan,2.);
3273 c2 = 2./TMath::Max(3.+deltan,2.);
3274 }
3275 else{
3276 if (clist1[i]){
3277 Float_t deltan = 0;
3278 if (i<2 || i>3){
3279 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-ny1[i]-nz1[i]);
3280 }
3281 else{
3282 deltan = (clist1[i]->GetNz()-nz1[i]);
3283 }
3284 c1 = 2./TMath::Max(3.+deltan,2.);
3285 c2 = 0;
3286 }
3287
3288 if (clist2[i]){
3289 Float_t deltan = 0;
3290 if (i<2 || i>3){
3291 deltan = (clist2[i]->GetNy()+clist2[i]->GetNz()-ny2[i]-nz2[i]);
3292 }
3293 else{
3294 deltan = (clist2[i]->GetNz()-nz2[i]);
3295 }
3296 c2 = 2./TMath::Max(3.+deltan,2.);
3297 c1 = 0;
3298 }
3299 }
3300 //
a5d0fae6 3301 chi21=0;chi22=0;
b9671574 3302 if (TMath::Abs(track1->GetDy(i))>0.) {
3303 chi21 = (track1->GetDy(i)/track1->GetSigmaY(i))*(track1->GetDy(i)/track1->GetSigmaY(i))+
3304 (track1->GetDz(i)/track1->GetSigmaZ(i))*(track1->GetDz(i)/track1->GetSigmaZ(i));
e43c066c 3305 //chi21 = (track1->fDy[i]*track1->fDy[i])/(nerry[i]*nerry[i])+
b9671574 3306 // (track1->GetDz(i)*track1->GetDz(i))/(nerrz[i]*nerrz[i]);
e43c066c 3307 }else{
b9671574 3308 if (TMath::Abs(track1->GetSigmaY(i)>0.)) c1=1;
e43c066c 3309 }
3310 //
b9671574 3311 if (TMath::Abs(track2->GetDy(i))>0.) {
3312 chi22 = (track2->GetDy(i)/track2->GetSigmaY(i))*(track2->GetDy(i)/track2->GetSigmaY(i))+
3313 (track2->GetDz(i)/track2->GetSigmaZ(i))*(track2->GetDz(i)/track2->GetSigmaZ(i));
e43c066c 3314 //chi22 = (track2->fDy[i]*track2->fDy[i])/(nerry[i]*nerry[i])+
3315 // (track2->fDz[i]*track2->fDz[i])/(nerrz[i]*nerrz[i]);
3316 }
3317 else{
b9671574 3318 if (TMath::Abs(track2->GetSigmaY(i)>0.)) c2=1;
e43c066c 3319 }
3320 sumchi2+=w1*(1.+c1)*(1+c1)*(chi21+c1)+w2*(1.+c2)*(1+c2)*(chi22+c2);
3321 if (chi21>0) sum+=w1;
3322 if (chi22>0) sum+=w2;
3323 conflict+=(c1+c2);
3324 }
b9671574 3325 Double_t norm = sum-w1*track1->GetNSkipped()-w2*track2->GetNSkipped();
3326 if (norm<0) norm =1/(w1*track1->GetNSkipped()+w2*track2->GetNSkipped());
e43c066c 3327 Double_t normchi2 = 2*conflict+sumchi2/sum;
3328 if ( normchi2 <maxchi2 ){
3329 index1 = itrack1;
3330 index2 = itrack2;
3331 maxconflicts = conflict;
3332 maxchi2 = normchi2;
3333 }
3334 }
3335 UnRegisterClusterTracks(track1,trackID1);
3336 }
3337 //
3338 // if (maxconflicts<4 && maxchi2<th0){
3339 if (maxchi2<th0*2.){
b9671574 3340 Float_t orig = track10->GetFakeRatio()*track10->GetNumberOfClusters();
15dd636f 3341 AliITStrackMI* track1=(AliITStrackMI*) arr1->UncheckedAt(index1);
b9671574 3342 track1->SetChi2MIP(5,maxconflicts);
3343 track1->SetChi2MIP(6,maxchi2);
3344 track1->SetChi2MIP(7,0.01+orig-(track1->GetFakeRatio()*track1->GetNumberOfClusters()));
e43c066c 3345 // track1->UpdateESDtrack(AliESDtrack::kITSin);
b9671574 3346 track1->SetChi2MIP(8,index1);
e43c066c 3347 fBestTrackIndex[trackID1] =index1;
3348 UpdateESDtrack(track1, AliESDtrack::kITSin);
04315dad 3349 original->SetWinner(track1);
e43c066c 3350 }
b9671574 3351 else if (track10->GetChi2MIP(0)<th1){
3352 track10->SetChi2MIP(5,maxconflicts);
3353 track10->SetChi2MIP(6,maxchi2);
e43c066c 3354 // track10->UpdateESDtrack(AliESDtrack::kITSin);
3355 UpdateESDtrack(track10,AliESDtrack::kITSin);
04315dad 3356 original->SetWinner(track10);
e43c066c 3357 }
3358
3359 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 3360 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 3361 UnRegisterClusterTracks(track,trackID1);
3362 }
3363 //
3364 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 3365 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 3366 UnRegisterClusterTracks(track,trackID2);
3367 }
3368
44347160 3369 if (track10->GetConstrain()&&track10->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3370 &&track10->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
3371 // if (track10->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3372 // &&track10->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3373 RegisterClusterTracks(track10,trackID1);
3374 }
44347160 3375 if (track20->GetConstrain()&&track20->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3376 &&track20->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
3377 //if (track20->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3378 // &&track20->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3379 RegisterClusterTracks(track20,trackID2);
3380 }
04315dad 3381 return track10;
e43c066c 3382
3383}
44347160 3384//------------------------------------------------------------------------
e43c066c 3385void AliITStrackerMI::UseClusters(const AliKalmanTrack *t, Int_t from) const {
3386 //--------------------------------------------------------------------
3387 // This function marks clusters assigned to the track
3388 //--------------------------------------------------------------------
3389 AliTracker::UseClusters(t,from);
3390
00a7cc50 3391 AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(0));
e43c066c 3392 //if (c->GetQ()>2) c->Use();
3393 if (c->GetSigmaZ2()>0.1) c->Use();
00a7cc50 3394 c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(1));
e43c066c 3395 //if (c->GetQ()>2) c->Use();
3396 if (c->GetSigmaZ2()>0.1) c->Use();
3397
3398}
44347160 3399//------------------------------------------------------------------------
15dd636f 3400void AliITStrackerMI::AddTrackHypothesys(AliITStrackMI * track, Int_t esdindex)
e43c066c 3401{
3402 //------------------------------------------------------------------
3403 // add track to the list of hypothesys
3404 //------------------------------------------------------------------
3405
fddf8459 3406 if (esdindex>=fTrackHypothesys.GetEntriesFast())
3407 fTrackHypothesys.Expand(TMath::Max(fTrackHypothesys.GetSize(),esdindex*2+10));
e43c066c 3408 //
3409 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3410 if (!array) {
3411 array = new TObjArray(10);
3412 fTrackHypothesys.AddAt(array,esdindex);
3413 }
3414 array->AddLast(track);
3415}
44347160 3416//------------------------------------------------------------------------
e43c066c 3417void AliITStrackerMI::SortTrackHypothesys(Int_t esdindex, Int_t maxcut, Int_t mode)
3418{
3419 //-------------------------------------------------------------------
3420 // compress array of track hypothesys
3421 // keep only maxsize best hypothesys
3422 //-------------------------------------------------------------------
3423 if (esdindex>fTrackHypothesys.GetEntriesFast()) return;
3424 if (! (fTrackHypothesys.At(esdindex)) ) return;
3425 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3426 Int_t entries = array->GetEntriesFast();
3427 //
3428 //- find preliminary besttrack as a reference
04315dad 3429 Float_t minchi2=10000;
e43c066c 3430 Int_t maxn=0;
15dd636f 3431 AliITStrackMI * besttrack=0;
a4354152 3432 //
e43c066c 3433 for (Int_t itrack=0;itrack<array->GetEntriesFast();itrack++){
15dd636f 3434 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3435 if (!track) continue;
3436 Float_t chi2 = NormalizedChi2(track,0);
3437 //
b9671574 3438 Int_t tpcLabel=track->GetESDtrack()->GetTPCLabel();
e43c066c 3439 track->SetLabel(tpcLabel);
3440 CookdEdx(track);
b9671574 3441 track->SetFakeRatio(1.);
e43c066c 3442 CookLabel(track,0.); //For comparison only
3443 //
44347160 3444 //if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track->fFakeRatio==0){
3445 if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
e43c066c 3446 if (track->GetNumberOfClusters()<maxn) continue;
3447 maxn = track->GetNumberOfClusters();
a4354152 3448 // if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2 *= track->GetChi2MIP(3); // RS
e43c066c 3449 if (chi2<minchi2){
3450 minchi2=chi2;
3451 besttrack=track;
3452 }
3453 }
3454 else{
b9671574 3455 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3456 delete array->RemoveAt(itrack);
3457 }
e43c066c 3458 }
3459 }
3460 if (!besttrack) return;
3461 //
3462 //
3463 //take errors of best track as a reference
3464 Float_t *erry = GetErrY(esdindex), *errz = GetErrZ(esdindex);
3465 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
a5d0fae6 3466 for (Int_t j=0;j<6;j++) {
9fd412a8 3467 if (besttrack->GetClIndex(j)>=0){
a5d0fae6 3468 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3469 errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
3470 ny[j] = besttrack->GetNy(j);
3471 nz[j] = besttrack->GetNz(j);
e43c066c 3472 }
3473 }
3474 //
3475 // calculate normalized chi2
3476 //
3477 Float_t * chi2 = new Float_t[entries];
3478 Int_t * index = new Int_t[entries];
04315dad 3479 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
e43c066c 3480 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 3481 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3482 if (track){
a4354152 3483 AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters()));
3484 double chi2t = GetNormalizedChi2(track, mode);
3485 track->SetChi2MIP(0,chi2t);
3486 if (chi2t<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) {
3487 if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2t *= track->GetChi2MIP(3); // RS
3488 chi2[itrack] = chi2t;
3489 }
628e7bb0 3490 else{
b9671574 3491 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3492 delete array->RemoveAt(itrack);
3493 }
3494 }
e43c066c 3495 }
3496 }
3497 //
3498 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 3499 besttrack = (AliITStrackMI*)array->At(index[0]);
bf1cd124 3500 if(besttrack) AliDebug(2,Form("ncls best track %d\n",besttrack->GetNumberOfClusters()));
44347160 3501 if (besttrack&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
a5d0fae6 3502 for (Int_t j=0;j<6;j++){
9fd412a8 3503 if (besttrack->GetClIndex(j)>=0){
a5d0fae6 3504 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3505 errz[j] = besttrack->GetSigmaZ(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3506 ny[j] = besttrack->GetNy(j);
3507 nz[j] = besttrack->GetNz(j);
e43c066c 3508 }
3509 }
3510 }
3511 //
3512 // calculate one more time with updated normalized errors
04315dad 3513 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
e43c066c 3514 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 3515 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3516 if (track){
a4354152 3517 double chi2t = GetNormalizedChi2(track, mode);
3518 track->SetChi2MIP(0,chi2t);
bf1cd124 3519 AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters()));
a4354152 3520 if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) {
3521 if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2t *= track->GetChi2MIP(3); // RS
3522 chi2[itrack] = chi2t; //-0*(track->GetNumberOfClusters()+track->GetNDeadZone());
3523 }
3524 else {
3525 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
3526 delete array->RemoveAt(itrack);
628e7bb0 3527 }
a4354152 3528 }
e43c066c 3529 }
3530 }
3531 entries = array->GetEntriesFast();
3532 //
628e7bb0 3533 //
e43c066c 3534 if (entries>0){
3535 TObjArray * newarray = new TObjArray();
3536 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 3537 besttrack = (AliITStrackMI*)array->At(index[0]);
e43c066c 3538 if (besttrack){
bf1cd124 3539 AliDebug(2,Form("ncls best track %d %f %f\n",besttrack->GetNumberOfClusters(),besttrack->GetChi2MIP(0),chi2[index[0]]));
e43c066c 3540 //
a5d0fae6 3541 for (Int_t j=0;j<6;j++){
3542 if (besttrack->GetNz(j)>0&&besttrack->GetNy(j)>0){
3543 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3544 errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
3545 ny[j] = besttrack->GetNy(j);
3546 nz[j] = besttrack->GetNz(j);
e43c066c 3547 }
3548 }
b9671574 3549 besttrack->SetChi2MIP(0,GetNormalizedChi2(besttrack,mode));
a5d0fae6 3550 minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)));
e43c066c 3551 Float_t minn = besttrack->GetNumberOfClusters()-3;
3552 Int_t accepted=0;
3553 for (Int_t i=0;i<entries;i++){
15dd636f 3554 AliITStrackMI * track = (AliITStrackMI*)array->At(index[i]);
e43c066c 3555 if (!track) continue;
3556 if (accepted>maxcut) break;
b9671574 3557 track->SetChi2MIP(0,GetNormalizedChi2(track,mode));
3558 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
3559 if (track->GetNumberOfClusters()<6 && (track->GetChi2MIP(0)+track->GetNUsed()>minchi2)){
628e7bb0 3560 delete array->RemoveAt(index[i]);
3561 continue;
3562 }
e43c066c 3563 }
b9671574 3564 Bool_t shortbest = !track->GetConstrain() && track->GetNumberOfClusters()<6;
3565 if ((track->GetChi2MIP(0)+track->GetNUsed()<minchi2 && track->GetNumberOfClusters()>=minn) ||shortbest){
628e7bb0 3566 if (!shortbest) accepted++;
e43c066c 3567 //
3568 newarray->AddLast(array->RemoveAt(index[i]));
a5d0fae6 3569 for (Int_t j=0;j<6;j++){
3570 if (nz[j]==0){
3571 erry[j] = track->GetSigmaY(j); erry[j+6] = track->GetSigmaY(j+6);
3572 errz[j] = track->GetSigmaZ(j); errz[j] = track->GetSigmaZ(j+6);
3573 ny[j] = track->GetNy(j);
3574 nz[j] = track->GetNz(j);
e43c066c 3575 }
3576 }
3577 }
3578 else{
3579 delete array->RemoveAt(index[i]);
3580 }
3581 }
3582 array->Delete();
3583 delete fTrackHypothesys.RemoveAt(esdindex);
3584 fTrackHypothesys.AddAt(newarray,esdindex);
3585 }
3586 else{
3587 array->Delete();
3588 delete fTrackHypothesys.RemoveAt(esdindex);
3589 }
3590 }
3591 delete [] chi2;
3592 delete [] index;
3593}
44347160 3594//------------------------------------------------------------------------
15dd636f 3595AliITStrackMI * AliITStrackerMI::GetBestHypothesys(Int_t esdindex, AliITStrackMI * original, Int_t checkmax)
e43c066c 3596{
3597 //-------------------------------------------------------------
3598 // try to find best hypothesy
3599 // currently - minimal chi2 of track+backpropagated track+matching to the tpc track
a4354152 3600 // RS: optionally changing this to product of Chi2MIP(0)*Chi2MIP(3) == (chi2*chi2_interpolated)
e43c066c 3601 //-------------------------------------------------------------
3602 if (fTrackHypothesys.GetEntriesFast()<=esdindex) return 0;
3603 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3604 if (!array) return 0;
3605 Int_t entries = array->GetEntriesFast();
3606 if (!entries) return 0;
04315dad 3607 Float_t minchi2 = 100000;
15dd636f 3608 AliITStrackMI * besttrack=0;
e43c066c 3609 //
15dd636f 3610 AliITStrackMI * backtrack = new AliITStrackMI(*original);
3611 AliITStrackMI * forwardtrack = new AliITStrackMI(*original);
afd25725 3612 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
3613 Double_t ersVtx[]={GetSigmaX()/3.,GetSigmaY()/3.,GetSigmaZ()/3.};
e43c066c 3614 //
3615 for (Int_t i=0;i<entries;i++){
15dd636f 3616 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3617 if (!track) continue;
628e7bb0 3618 Float_t sigmarfi,sigmaz;
3619 GetDCASigma(track,sigmarfi,sigmaz);
b9671574 3620 track->SetDnorm(0,sigmarfi);
3621 track->SetDnorm(1,sigmaz);
628e7bb0 3622 //
b9671574 3623 track->SetChi2MIP(1,1000000);
3624 track->SetChi2MIP(2,1000000);
3625 track->SetChi2MIP(3,1000000);
e43c066c 3626 //
3627 // backtrack
15dd636f 3628 backtrack = new(backtrack) AliITStrackMI(*track);
afd25725 3629 if (track->GetConstrain()) {
e50912db 3630 if (!CorrectForPipeMaterial(backtrack,"inward")) continue;
333d86cb 3631 if (AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
a4354152 3632 if (fUseImproveKalman) {if (!backtrack->ImproveKalman(xyzVtx,ersVtx,0,0,0)) continue;}
3633 else {if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue;}
333d86cb 3634 }
6c94f330 3635 backtrack->ResetCovariance(10.);
628e7bb0 3636 }else{
6c94f330 3637 backtrack->ResetCovariance(10.);
628e7bb0 3638 }
e43c066c 3639 backtrack->ResetClusters();
628e7bb0 3640
e43c066c 3641 Double_t x = original->GetX();
3642 if (!RefitAt(x,backtrack,track)) continue;
628e7bb0 3643 //
b9671574 3644 track->SetChi2MIP(1,NormalizedChi2(backtrack,0));
e43c066c 3645 //for (Int_t i=2;i<6;i++){track->fDy[i]+=backtrack->fDy[i]; track->fDz[i]+=backtrack->fDz[i];}
44347160 3646 if (track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)*6.) continue;
b9671574 3647 track->SetChi22(GetMatchingChi2(backtrack,original));
e43c066c 3648
b9671574 3649 if ((track->GetConstrain()) && track->GetChi22()>90.) continue;
3650 if ((!track->GetConstrain()) && track->GetChi22()>30.) continue;
3651 if ( track->GetChi22()/track->GetNumberOfClusters()>11.) continue;
e43c066c 3652
3653
44347160 3654 if (!(track->GetConstrain())&&track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)) continue;
e43c066c 3655 //
3656 //forward track - without constraint
15dd636f 3657 forwardtrack = new(forwardtrack) AliITStrackMI(*original);
e43c066c 3658 forwardtrack->ResetClusters();
3659 x = track->GetX();
a4354152 3660 if (!RefitAt(x,forwardtrack,track) && fSelectBestMIP03) continue; // w/o fwd track MIP03 is meaningless
b9671574 3661 track->SetChi2MIP(2,NormalizedChi2(forwardtrack,0));
44347160 3662 if (track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)*6.0) continue;
3663 if (!(track->GetConstrain())&&track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)) continue;
e43c066c 3664
791f9a2a 3665 //track->fD[0] = forwardtrack->GetD(GetX(),GetY());
3666 //track->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3667 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),track->GetDP()); //I.B.
3668 forwardtrack->SetD(0,track->GetD(0));
3669 forwardtrack->SetD(1,track->GetD(1));
e43c066c 3670 {
3671 Int_t list[6];
00a7cc50 3672 AliITSRecPoint* clist[6];
b9671574 3673 track->SetChi2MIP(4,GetNumberOfSharedClusters(track,esdindex,list,clist));
3674 if ( (!track->GetConstrain()) && track->GetChi2MIP(4)>1.0) continue;
e43c066c 3675 }
3676
b9671574 3677 track->SetChi2MIP(3,GetInterpolatedChi2(forwardtrack,backtrack));
44347160 3678 if ( (track->GetChi2MIP(3)>6.*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) continue;
3679 if ( (!track->GetConstrain()) && (track->GetChi2MIP(3)>2*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) {
b9671574 3680 track->SetChi2MIP(3,1000);
e43c066c 3681 continue;
3682 }
a4354152 3683 Double_t chi2 = track->GetChi2MIP(0); // +track->GetNUsed(); //RS
3684 if (fSelectBestMIP03) chi2 *= track->GetChi2MIP(3);
04315dad 3685 else chi2 += track->GetNUsed();
e43c066c 3686 //
3687 for (Int_t ichi=0;ichi<5;ichi++){
b9671574 3688 forwardtrack->SetChi2MIP(ichi, track->GetChi2MIP(ichi));
e43c066c 3689 }
3690 if (chi2 < minchi2){
15dd636f 3691 //besttrack = new AliITStrackMI(*forwardtrack);
99c2ee26 3692 besttrack = track;
e43c066c 3693 besttrack->SetLabel(track->GetLabel());
b9671574 3694 besttrack->SetFakeRatio(track->GetFakeRatio());
e43c066c 3695 minchi2 = chi2;
791f9a2a 3696 //original->fD[0] = forwardtrack->GetD(GetX(),GetY());
3697 //original->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3698 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),original->GetDP()); //I.B.
e43c066c 3699 }
3700 }
3701 delete backtrack;
3702 delete forwardtrack;
9cd19c63 3703
3704 if (!besttrack) return 0;
3705
e43c066c 3706 Int_t accepted=0;
3707 for (Int_t i=0;i<entries;i++){
fddf8459 3708 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
3709
e43c066c 3710 if (!track) continue;
628e7bb0 3711
44347160 3712 if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. ||
a4354152 3713 (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)
3714 // RS: don't apply this cut when fSelectBestMIP03 is on
3715 || (!fSelectBestMIP03 && (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.))
3716 ){
b9671574 3717 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3718 delete array->RemoveAt(i);
3719 continue;
3720 }
e43c066c 3721 }
3722 else{
3723 accepted++;
3724 }
3725 }
3726 //
3727 array->Compress();
3728 SortTrackHypothesys(esdindex,checkmax,1);
fddf8459 3729
e43c066c 3730 array = (TObjArray*) fTrackHypothesys.At(esdindex);
afdf9b9c 3731 if (!array) return 0; // PH What can be the reason? Check SortTrackHypothesys
15dd636f 3732 besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3733 if (!besttrack) return 0;
b9671574 3734 besttrack->SetChi2MIP(8,0);
e43c066c 3735 fBestTrackIndex[esdindex]=0;
3736 entries = array->GetEntriesFast();
15dd636f 3737 AliITStrackMI *longtrack =0;
e43c066c 3738 minchi2 =1000;
b9671574 3739 Float_t minn=besttrack->GetNumberOfClusters()+besttrack->GetNDeadZone();
6518a6c5 3740 for (Int_t itrack=entries-1;itrack>0;itrack--) {
15dd636f 3741 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
b9671574 3742 if (!track->GetConstrain()) continue;
3743 if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue;
3744 if (track->GetChi2MIP(0)-besttrack->GetChi2MIP(0)>0.0) continue;
3745 if (track->GetChi2MIP(0)>4.) continue;
3746 minn = track->GetNumberOfClusters()+track->GetNDeadZone();
e43c066c 3747 longtrack =track;
3748 }
3749 //if (longtrack) besttrack=longtrack;
a4354152 3750 //
3751 // RS do shared cluster analysis here only if the new sharing analysis is not requested
04315dad 3752 //RRR if (fFlagFakes) return besttrack;
e43c066c 3753
3754 Int_t list[6];
00a7cc50 3755 AliITSRecPoint * clist[6];
e43c066c 3756 Float_t shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
44347160 3757 if (besttrack->GetConstrain()&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&besttrack->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3758 &&besttrack->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&besttrack->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3759 RegisterClusterTracks(besttrack,esdindex);
3760 }
3761 //
3762 //
3763 if (shared>0.0){
3764 Int_t nshared;
3765 Int_t overlist[6];
3766 Int_t sharedtrack = GetOverlapTrack(besttrack, esdindex, nshared, list, overlist);
3767 if (sharedtrack>=0){
3768 //
04315dad 3769 besttrack = GetBest2Tracks(esdindex,sharedtrack,10,5.5,original);
e43c066c 3770 if (besttrack){
3771 shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
3772 }
3773 else return 0;
3774 }
3775 }
3776
3777 if (shared>2.5) return 0;
3778 if (shared>1.0) return besttrack;
3779 //
628e7bb0 3780 // Don't sign clusters if not gold track
3781 //
3782 if (!besttrack->IsGoldPrimary()) return besttrack;
b9671574 3783 if (besttrack->GetESDtrack()->GetKinkIndex(0)!=0) return besttrack; //track belong to kink
628e7bb0 3784 //
e43c066c 3785 if (fConstraint[fPass]){
3786 //
3787 // sign clusters
3788 //
3789 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
3790 for (Int_t i=0;i<6;i++){
b9671574 3791 Int_t index = besttrack->GetClIndex(i);
9fd412a8 3792 if (index<0) continue;
e43c066c 3793 Int_t ilayer = (index & 0xf0000000) >> 28;
b9671574 3794 if (besttrack->GetSigmaY(ilayer)<0.00000000001) continue;
00a7cc50 3795 AliITSRecPoint *c = (AliITSRecPoint*)GetCluster(index);
e43c066c 3796 if (!c) continue;
3797 if (ilayer>3&&c->GetNy()+c->GetNz()>6) continue;
3798 if ( (c->GetNy()+c->GetNz() )> ny[i]+nz[i]+0.7) continue; //shared track
3799 if ( c->GetNz()> nz[i]+0.7) continue; //shared track
572f41f9 3800 if ( ilayer>2&& AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(ilayer))
3801 if (besttrack->GetNormQ(ilayer)/besttrack->GetExpQ()>1.5) continue;
e43c066c 3802 //if ( c->GetNy()> ny[i]+0.7) continue; //shared track
3803
3804 Bool_t cansign = kTRUE;
3805 for (Int_t itrack=0;itrack<entries; itrack++){
15dd636f 3806 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3807 if (!track) continue;
b9671574 3808 if (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*shared+1.) break;
9fd412a8 3809 if ( (track->GetClIndex(ilayer)>=0) && (track->GetClIndex(ilayer)!=besttrack->GetClIndex(ilayer))){
e43c066c 3810 cansign = kFALSE;
3811 break;
3812 }
3813 }
3814 if (cansign){
b9671574 3815 if (TMath::Abs(besttrack->GetDy(ilayer)/besttrack->GetSigmaY(ilayer))>3.) continue;
3816 if (TMath::Abs(besttrack->GetDz(ilayer)/besttrack->GetSigmaZ(ilayer))>3.) continue;
e43c066c 3817 if (!c->IsUsed()) c->Use();
3818 }
3819 }
3820 }
3821 return besttrack;
3822}
44347160 3823//------------------------------------------------------------------------
e43c066c 3824void AliITStrackerMI::GetBestHypothesysMIP(TObjArray &itsTracks)
3825{
3826 //
3827 // get "best" hypothesys
628e7bb0 3828 //
e43c066c 3829
3830 Int_t nentries = itsTracks.GetEntriesFast();
3831 for (Int_t i=0;i<nentries;i++){
15dd636f 3832 AliITStrackMI* track = (AliITStrackMI*)itsTracks.At(i);
e43c066c 3833 if (!track) continue;
3834 TObjArray * array = (TObjArray*) fTrackHypothesys.At(i);
3835 if (!array) continue;
3836 if (array->GetEntriesFast()<=0) continue;
3837 //
15dd636f 3838 AliITStrackMI* longtrack=0;
e43c066c 3839 Float_t minn=0;
04315dad 3840 Float_t maxchi2=1000;
e43c066c 3841 for (Int_t j=0;j<array->GetEntriesFast();j++){
a5d0fae6 3842 AliITStrackMI* trackHyp = (AliITStrackMI*)array->At(j);
3843 if (!trackHyp) continue;
3844 if (trackHyp->GetGoldV0()) {
3845 longtrack = trackHyp; //gold V0 track taken
628e7bb0 3846 break;
3847 }
a5d0fae6 3848 if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()<minn) continue;
3849 Float_t chi2 = trackHyp->GetChi2MIP(0);
a4354152 3850 if (fSelectBestMIP03) chi2 *= trackHyp->GetChi2MIP(3);
3851 if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = chi2; //trackHyp->GetChi2MIP(0);
3852 //
3853 if (fAfterV0){ // ??? RS
a5d0fae6 3854 if (!trackHyp->GetGoldV0()&&trackHyp->GetConstrain()==kFALSE) chi2+=5;
628e7bb0 3855 }
628e7bb0 3856 if (chi2 > maxchi2) continue;
a4354152 3857 minn = trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone();
3858 if (fSelectBestMIP03) minn++; // allow next to longest to win
628e7bb0 3859 maxchi2 = chi2;
a5d0fae6 3860 longtrack=trackHyp;
e43c066c 3861 }
628e7bb0 3862 //
3863 //
3864 //
15dd636f 3865 AliITStrackMI * besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3866 if (!longtrack) {longtrack = besttrack;}
3867 else besttrack= longtrack;
628e7bb0 3868 //
afd25725 3869 if (besttrack) {
04315dad 3870 Int_t list[6];
3871 AliITSRecPoint * clist[6];
3872 Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist);
3873 //
3874 track->SetNUsed(shared);
b9671574 3875 track->SetNSkipped(besttrack->GetNSkipped());
3876 track->SetChi2MIP(0,besttrack->GetChi2MIP(0));
04315dad 3877 if (shared>0) {
3878 if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue;
3879 Int_t nshared;
3880 Int_t overlist[6];
e43c066c 3881 //
04315dad 3882 Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist);
3883 //if (sharedtrack==-1) sharedtrack=0;
3884 if (sharedtrack>=0) {
3885 besttrack = GetBest2Tracks(i,sharedtrack,10,5.5,track);
3886 }
3887 }
3888 if (besttrack&&fAfterV0) {
628e7bb0 3889 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
a4354152 3890 track->SetWinner(besttrack);
628e7bb0 3891 }
04315dad 3892 if (besttrack) {
3893 if (fConstraint[fPass]) {
3894 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
3895 track->SetWinner(besttrack);
3896 }
3897 if (besttrack->GetChi2MIP(0)+besttrack->GetNUsed()>1.5 && fConstraint[fPass]) {
9cd19c63 3898 if ( TMath::Abs(besttrack->GetD(0))>0.1 ||
3899 TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE);
3900 }
04315dad 3901 }
a4354152 3902 }
e43c066c 3903 }
3904}
a4354152 3905
3906//------------------------------------------------------------------------
a878a855 3907void AliITStrackerMI::FlagFakes(const TObjArray &itsTracks)
a4354152 3908{
3909 //
3910 // RS: flag those tracks which are suxpected to have fake clusters
3911 //
3912 const double kThreshPt = 0.5;
3913 AliRefArray *refArr[6];
3914 //
3915 for (int i=0;i<6;i++) {
3916 int ncl = fgLayers[i].GetNumberOfClusters();
3917 refArr[i] = new AliRefArray(ncl,TMath::Min(ncl,1000));
3918 }
3919 Int_t nentries = itsTracks.GetEntriesFast();
3920 //
3921 // fill cluster->track associations
3922 for (Int_t itr=0;itr<nentries;itr++){
3923 AliITStrackMI* track = (AliITStrackMI*)itsTracks.UncheckedAt(itr);
3924 if (!track) continue;
3925 AliITStrackMI* trackITS = track->GetWinner();
3926 if (!trackITS) continue;
3927 for (int il=trackITS->GetNumberOfClusters();il--;) {
3928 int idx = trackITS->GetClusterIndex(il);
3929 Int_t l=(idx & 0xf0000000) >> 28, c=(idx & 0x0fffffff) >> 00;
3930 // if (c>fgLayers[l].GetNumberOfClusters()) continue;
3931 refArr[l]->AddReference(c, itr);
3932 }
3933 }
3934 //
3935 const UInt_t kMaxRef = 100;
3936 UInt_t crefs[kMaxRef];
3937 Int_t ncrefs=0;
3938 // process tracks with shared clusters
3939 for (int itr=0;itr<nentries;itr++){
3940 AliITStrackMI* track0 = (AliITStrackMI*)itsTracks.UncheckedAt(itr);
3941 AliITStrackMI* trackH0 = track0->GetWinner();
3942 if (!trackH0) continue;
3943 AliESDtrack* esd0 = track0->GetESDtrack();
3944 //
3945 for (int il=0;il<trackH0->GetNumberOfClusters();il++) {
3946 int idx = trackH0->GetClusterIndex(il);
3947 Int_t l=(idx & 0xf0000000) >> 28, c=(idx & 0x0fffffff) >> 00;
3948 ncrefs = refArr[l]->GetReferences(c,crefs,kMaxRef);
3949 if (ncrefs<2) continue; // there will be always self-reference, for sharing needs at least 2
3950 esd0->SetITSSharedFlag(l);
3951 for (int ir=ncrefs;ir--;) {
3952 if (int(crefs[ir]) <= itr) continue; // ==:selfreference, <: the same pair will be checked with >
3953 AliITStrackMI* track1 = (AliITStrackMI*)itsTracks.UncheckedAt(crefs[ir]);
3954 AliITStrackMI* trackH1 = track1->GetWinner();
3955 AliESDtrack* esd1 = track1->GetESDtrack();
3956 esd1->SetITSSharedFlag(l);
3957 //
3958 double pt0 = trackH0->Pt(), pt1 = trackH1->Pt(), res = 0.;
3959 if (pt0>kThreshPt && pt0-pt1>0.2+0.2*(pt0-kThreshPt) ) res = -100;
3960 else if (pt1>kThreshPt && pt1-pt0>0.2+0.2*(pt1-kThreshPt) ) res = 100;
3961
3962 // select the one with smallest chi2's product
3963 res += trackH0->GetChi2MIP(0)*trackH0->GetChi2MIP(3);
3964 res -= trackH1->GetChi2MIP(0)*trackH1->GetChi2MIP(3);
3965 //
3966 if (res<0) esd1->SetITSFakeFlag(); // esd0 is winner
3967 else esd0->SetITSFakeFlag(); // esd1 is winner
3968 }
3969 //
3970 }
3971 //
3972 }
3973 //
3974 for (int i=6;i--;) delete refArr[i];
3975}
3976
44347160 3977//------------------------------------------------------------------------
15dd636f 3978void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const {
e43c066c 3979 //--------------------------------------------------------------------
3980 //This function "cooks" a track label. If label<0, this track is fake.
3981 //--------------------------------------------------------------------
3982 Int_t tpcLabel=-1;
3983
d3dbf323 3984 if (track->GetESDtrack()){
3985 tpcLabel = track->GetESDtrack()->GetTPCLabel();
3986 ULong_t trStatus=track->GetESDtrack()->GetStatus();
3987 if(!(trStatus&AliESDtrack::kTPCin)) tpcLabel=track->GetLabel(); // for ITSsa tracks
3988 }
b9671574 3989 track->SetChi2MIP(9,0);
e43c066c 3990 Int_t nwrong=0;
3991 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
3992 Int_t cindex = track->GetClusterIndex(i);
3993 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 3994 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
e43c066c 3995 Int_t isWrong=1;
3996 for (Int_t ind=0;ind<3;ind++){
84a21804 3997 if (cl->GetLabel(ind)==TMath::Abs(tpcLabel)) isWrong=0;
bf1cd124 3998 //AliDebug(2,Form("icl %d ilab %d lab %d",i,ind,cl->GetLabel(ind)));
e43c066c 3999 }
b9671574 4000 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 4001 nwrong+=isWrong;
4002 }
7d43b4c4 4003 Int_t nclusters = track->GetNumberOfClusters();
4004 if (nclusters > 0) //PH Some tracks don't have any cluster
4005 track->SetFakeRatio(double(nwrong)/double(nclusters));
84a21804 4006 if (tpcLabel>0 && track->GetFakeRatio()>wrong) {
4007 track->SetLabel(-tpcLabel);
4008 } else {
4009 track->SetLabel(tpcLabel);
e43c066c 4010 }
9be1d1c7 4011 AliDebug(2,Form(" nls %d wrong %d label %d tpcLabel %d\n",nclusters,nwrong,track->GetLabel(),tpcLabel));
e43c066c 4012
4013}
44347160 4014//------------------------------------------------------------------------
88e3c173 4015void AliITStrackerMI::CookdEdx(AliITStrackMI* track){
4016 //
4017 // Fill the dE/dx in this track
e43c066c 4018 //
b9671574 4019 track->SetChi2MIP(9,0);
e43c066c 4020 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
4021 Int_t cindex = track->GetClusterIndex(i);
4022 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 4023 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
b9671574 4024 Int_t lab = TMath::Abs(track->GetESDtrack()->GetTPCLabel());
e43c066c 4025 Int_t isWrong=1;
4026 for (Int_t ind=0;ind<3;ind++){
4027 if (cl->GetLabel(ind)==lab) isWrong=0;
4028 }
b9671574 4029 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 4030 }
e43c066c 4031 Double_t low=0.;
4032 Double_t up=0.51;
09cf9d66 4033 track->CookdEdx(low,up);
e43c066c 4034}
44347160 4035//------------------------------------------------------------------------
e50912db 4036void AliITStrackerMI::MakeCoefficients(Int_t ntracks){
e43c066c 4037 //
a70ed6ad 4038 // Create some arrays
e43c066c 4039 //
afd25725 4040 if (fCoefficients) delete []fCoefficients;
4041 fCoefficients = new Float_t[ntracks*48];
4042 for (Int_t i=0;i<ntracks*48;i++) fCoefficients[i]=-1.;
e43c066c 4043}
44347160 4044//------------------------------------------------------------------------
00a7cc50 4045Double_t AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
e43c066c 4046{
4047 //
a70ed6ad 4048 // Compute predicted chi2
e43c066c 4049 //
242bd643 4050 // Take into account the mis-alignment (bring track to cluster plane)
4051 Double_t xTrOrig=track->GetX();
4052 if (!track->Propagate(xTrOrig+cluster->GetX())) return 1000.;
d9ead1a0 4053 Float_t erry,errz,covyz;
e43c066c 4054 Float_t theta = track->GetTgl();
4055 Float_t phi = track->GetSnp();
242bd643 4056 phi *= TMath::Sqrt(1./((1.-phi)*(1.+phi)));
d9ead1a0 4057 AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz,covyz);
4187a601 4058 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()));
4187a601 4059 AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX()));
d9ead1a0 4060 Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz,covyz);
1c97ce2f 4061 // Bring the track back to detector plane in ideal geometry
4062 // [mis-alignment will be accounted for in UpdateMI()]
9be1d1c7 4063 if (!track->Propagate(xTrOrig)) return 1000.;
e43c066c 4064 Float_t ny,nz;
e50912db 4065 AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz);
e43c066c 4066 Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny;
4067 if (delta>1){
4068 chi2+=0.5*TMath::Min(delta/2,2.);
4069 chi2+=2.*cluster->GetDeltaProbability();
4070 }
4071 //
b9671574 4072 track->SetNy(layer,ny);
4073 track->SetNz(layer,nz);
4074 track->SetSigmaY(layer,erry);
4075 track->SetSigmaZ(layer, errz);
d9ead1a0 4076 track->SetSigmaYZ(layer,covyz);
e43c066c 4077 //track->fNormQ[layer] = cluster->GetQ()/TMath::Sqrt(1+theta*theta+phi*phi);
60e55aee 4078 track->SetNormQ(layer,cluster->GetQ()/TMath::Sqrt((1.+ track->GetTgl()*track->GetTgl())/((1.-track->GetSnp())*(1.+track->GetSnp()))));
e43c066c 4079 return chi2;
4080
4081}
e50912db 4082//------------------------------------------------------------------------
4083Int_t AliITStrackerMI::UpdateMI(AliITStrackMI* track, const AliITSRecPoint* cl,Double_t chi2,Int_t index) const
e43c066c 4084{
4085 //
a70ed6ad 4086 // Update ITS track
e43c066c 4087 //
4088 Int_t layer = (index & 0xf0000000) >> 28;
b9671574 4089 track->SetClIndex(layer, index);
572f41f9 4090 if (layer>1&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(layer)) {
4091 if (track->GetNormQ(layer)/track->GetExpQ()<0.5 ) {
4092 chi2+= (0.5-track->GetNormQ(layer)/track->GetExpQ())*10.;
4093 track->SetdEdxMismatch(track->GetdEdxMismatch()+(0.5-track->GetNormQ(layer)/track->GetExpQ())*10.);
4094 }
e43c066c 4095 }
a504d56f 4096
88e3c173 4097 if (TMath::Abs(cl->GetQ())<1.e-13) return 0; // ingore the "virtual" clusters
a504d56f 4098
afd25725 4099
1c97ce2f 4100 // Take into account the mis-alignment (bring track to cluster plane)
4101 Double_t xTrOrig=track->GetX();
4187a601 4102 Float_t clxyz[3]; cl->GetGlobalXYZ(clxyz);Double_t trxyz[3]; track->GetXYZ(trxyz);
4103 AliDebug(2,Form("gtr %f %f %f",trxyz[0],trxyz[1],trxyz[2]));
4104 AliDebug(2,Form("gcl %f %f %f",clxyz[0],clxyz[1],clxyz[2]));
4105 AliDebug(2,Form(" xtr %f xcl %f",track->GetX(),cl->GetX()));
fddf8459 4106
9be1d1c7 4107 if (!track->Propagate(xTrOrig+cl->GetX())) return 0;
1f3e997f 4108
150f264c 4109 AliCluster c(*cl);
4110 c.SetSigmaY2(track->GetSigmaY(layer)*track->GetSigmaY(layer));
4111 c.SetSigmaZ2(track->GetSigmaZ(layer)*track->GetSigmaZ(layer));
d9ead1a0 4112 c.SetSigmaYZ(track->GetSigmaYZ(layer));
150f264c 4113
1c97ce2f 4114
4115 Int_t updated = track->UpdateMI(&c,chi2,index);
1c97ce2f 4116 // Bring the track back to detector plane in ideal geometry
9be1d1c7 4117 if (!track->Propagate(xTrOrig)) return 0;
d9ead1a0 4118
4187a601 4119 if(!updated) AliDebug(2,"update failed");
1c97ce2f 4120 return updated;
e43c066c 4121}
150f264c 4122
44347160 4123//------------------------------------------------------------------------
a70ed6ad 4124void AliITStrackerMI::GetDCASigma(const AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz)
628e7bb0 4125{
4126 //
4127 //DCA sigmas parameterization
4128 //to be paramterized using external parameters in future
4129 //
4130 //
63126a46 4131 Double_t curv=track->GetC();
4132 sigmarfi = 0.0040+1.4 *TMath::Abs(curv)+332.*curv*curv;
4133 sigmaz = 0.0110+4.37*TMath::Abs(curv);
628e7bb0 4134}
e50912db 4135//------------------------------------------------------------------------
a70ed6ad 4136void AliITStrackerMI::SignDeltas(const TObjArray *clusterArray, Float_t vz)
e43c066c 4137{
4138 //
a70ed6ad 4139 // Clusters from delta electrons?
e43c066c 4140 //
a70ed6ad 4141 Int_t entries = clusterArray->GetEntriesFast();
e43c066c 4142 if (entries<4) return;
a70ed6ad 4143 AliITSRecPoint* cluster = (AliITSRecPoint*)clusterArray->At(0);
e43c066c 4144 Int_t layer = cluster->GetLayer();
4145 if (layer>1) return;
4146 Int_t index[10000];
4147 Int_t ncandidates=0;
4148 Float_t r = (layer>0)? 7:4;
4149 //
4150 for (Int_t i=0;i<entries;i++){
a70ed6ad 4151 AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(i);
e43c066c 4152 Float_t nz = 1+TMath::Abs((cl0->GetZ()-vz)/r);
4153 if (cl0->GetNy()+cl0->GetNz()<=5+2*layer+nz) continue;
4154 index[ncandidates] = i; //candidate to belong to delta electron track
4155 ncandidates++;
4156 if (cl0->GetNy()+cl0->GetNz()>9+2*layer+nz) {
4157 cl0->SetDeltaProbability(1);
4158 }
4159 }
4160 //
4161 //
4162 //
4163 for (Int_t i=0;i<ncandidates;i++){
a70ed6ad 4164 AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(index[i]);
e43c066c 4165 if (cl0->GetDeltaProbability()>0.8) continue;
4166 //
4167 Int_t ncl = 0;
4168 Float_t y[100],z[100],sumy,sumz,sumy2, sumyz, sumw;
4169 sumy=sumz=sumy2=sumyz=sumw=0.0;
4170 for (Int_t j=0;j<ncandidates;j++){
4171 if (i==j) continue;
a70ed6ad 4172 AliITSRecPoint* cl1 = (AliITSRecPoint*)clusterArray->At(index[j]);
e43c066c 4173 //
4174 Float_t dz = cl0->GetZ()-cl1->GetZ();
4175 Float_t dy = cl0->GetY()-cl1->GetY();
4176 if (TMath::Sqrt(dz*dz+dy*dy)<0.2){
4177 Float_t weight = cl1->GetNy()+cl1->GetNz()-2;
4178 y[ncl] = cl1->GetY();
4179 z[ncl] = cl1->GetZ();
4180 sumy+= y[ncl]*weight;
4181 sumz+= z[ncl]*weight;
4182 sumy2+=y[ncl]*y[ncl]*weight;
4183 sumyz+=y[ncl]*z[ncl]*weight;
4184 sumw+=weight;
4185 ncl++;
4186 }
4187 }
4188 if (ncl<4) continue;
4189 Float_t det = sumw*sumy2 - sumy*sumy;
4190 Float_t delta=1000;
4191 if (TMath::Abs(det)>0.01){
4192 Float_t z0 = (sumy2*sumz - sumy*sumyz)/det;
4193 Float_t k = (sumyz*sumw - sumy*sumz)/det;
4194 delta = TMath::Abs(cl0->GetZ()-(z0+k*cl0->GetY()));
4195 }
4196 else{
4197 Float_t z0 = sumyz/sumy;
4198 delta = TMath::Abs(cl0->GetZ()-z0);
4199 }
4200 if ( delta<0.05) {
4201 cl0->SetDeltaProbability(1-20.*delta);
4202 }
4203 }
4204}
44347160 4205//------------------------------------------------------------------------
15dd636f 4206void AliITStrackerMI::UpdateESDtrack(AliITStrackMI* track, ULong_t flags) const
e43c066c 4207{
4208 //
a70ed6ad 4209 // Update ESD track
e43c066c 4210 //
4211 track->UpdateESDtrack(flags);
b9671574 4212 AliITStrackMI * oldtrack = (AliITStrackMI*)(track->GetESDtrack()->GetITStrack());
e546b023 4213 AliClonesPool* poolITS = fPools ? fPools->GetPoolTrITS() : 0;
4214 if (oldtrack) {
4215 if (!poolITS) delete oldtrack;
4216 else poolITS->MarkSlotFree(oldtrack);
4217 }
4218 AliITStrackMI* trc = 0;
4219 if (!poolITS) trc = new AliITStrackMI(*track);
4220 else {
4221 trc = new ( poolITS->NextFreeSlot() ) AliITStrackMI(*track);
4222 poolITS->RegisterClone( trc );
4223 }
4224 track->GetESDtrack()->SetITStrack(trc);
4225 //
e43c066c 4226}
e546b023 4227
44347160 4228//------------------------------------------------------------------------
81e97e0d 4229Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{
4230 //
ae00569a 4231 // Get nearest upper layer close to the point xr.
81e97e0d 4232 // rough approximation
4233 //
bf6adc12 4234 const Float_t kRadiuses[6]={4,6.5,15.03,24.,38.5,43.7};
81e97e0d 4235 Float_t radius = TMath::Sqrt(xr[0]*xr[0]+xr[1]*xr[1]);
4236 Int_t res =6;
4237 for (Int_t i=0;i<6;i++){
bf6adc12 4238 if (radius<kRadiuses[i]){
81e97e0d 4239 res =i;
4240 break;
4241 }
4242 }
4243 return res;
4244}
44347160 4245//------------------------------------------------------------------------
e50912db 4246void AliITStrackerMI::BuildMaterialLUT(TString material) {
4247 //--------------------------------------------------------------------
4248 // Fill a look-up table with mean material
4249 //--------------------------------------------------------------------
4250
4251 Int_t n=1000;
4252 Double_t mparam[7];
4253 Double_t point1[3],point2[3];
4254 Double_t phi,cosphi,sinphi,z;
4255 // 0-5 layers, 6 pipe, 7-8 shields
1ec3c859 4256 Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 8.0,25.0};
4257 Double_t rmax[9]={ 5.5, 8.0,17.0,26.0,41.0,47.0, 3.0,10.5,30.0};
e50912db 4258
4259 Int_t ifirst=0,ilast=0;
4260 if(material.Contains("Pipe")) {
4261 ifirst=6; ilast=6;
4262 } else if(material.Contains("Shields")) {
4263 ifirst=7; ilast=8;
4264 } else if(material.Contains("Layers")) {
4265 ifirst=0; ilast=5;
4266 } else {
4267 Error("BuildMaterialLUT","Wrong layer name\n");
4268 }
4269
4270 for(Int_t imat=ifirst; imat<=ilast; imat++) {
4271 Double_t param[5]={0.,0.,0.,0.,0.};
4272 for (Int_t i=0; i<n; i++) {
4273 phi = 2.*TMath::Pi()*gRandom->Rndm();
4274 cosphi = TMath::Cos(phi); sinphi = TMath::Sin(phi);
4275 z = 14.*(-1.+2.*gRandom->Rndm()); // SPD barrel
4276 point1[0] = rmin[imat]*cosphi;
4277 point1[1] = rmin[imat]*sinphi;
4278 point1[2] = z;
4279 point2[0] = rmax[imat]*cosphi;
4280 point2[1] = rmax[imat]*sinphi;
4281 point2[2] = z;
4282 AliTracker::MeanMaterialBudget(point1,point2,mparam);
4283 for(Int_t j=0;j<5;j++) param[j]+=mparam[j];
4284 }
4285 for(Int_t j=0;j<5;j++) param[j]/=(Float_t)n;
4286 if(imat<=5) {
4287 fxOverX0Layer[imat] = param[1];
4288 fxTimesRhoLayer[imat] = param[0]*param[4];
4289 } else if(imat==6) {
4290 fxOverX0Pipe = param[1];
4291 fxTimesRhoPipe = param[0]*param[4];
4292 } else if(imat==7) {
4293 fxOverX0Shield[0] = param[1];
4294 fxTimesRhoShield[0] = param[0]*param[4];
4295 } else if(imat==8) {
4296 fxOverX0Shield[1] = param[1];
4297 fxTimesRhoShield[1] = param[0]*param[4];
4298 }
4299 }
4300 /*
4301 printf("%s\n",material.Data());
4302 printf("%f %f\n",fxOverX0Pipe,fxTimesRhoPipe);
4303 printf("%f %f\n",fxOverX0Shield[0],fxTimesRhoShield[0]);
4304 printf("%f %f\n",fxOverX0Shield[1],fxTimesRhoShield[1]);
4305 printf("%f %f\n",fxOverX0Layer[0],fxTimesRhoLayer[0]);
4306 printf("%f %f\n",fxOverX0Layer[1],fxTimesRhoLayer[1]);
4307 printf("%f %f\n",fxOverX0Layer[2],fxTimesRhoLayer[2]);
4308 printf("%f %f\n",fxOverX0Layer[3],fxTimesRhoLayer[3]);
4309 printf("%f %f\n",fxOverX0Layer[4],fxTimesRhoLayer[4]);
4310 printf("%f %f\n",fxOverX0Layer[5],fxTimesRhoLayer[5]);
4311 */
4312 return;
4313}
4314//------------------------------------------------------------------------
4315Int_t AliITStrackerMI::CorrectForPipeMaterial(AliITStrackMI *t,
4316 TString direction) {
4317 //-------------------------------------------------------------------
4318 // Propagate beyond beam pipe and correct for material
4319 // (material budget in different ways according to fUseTGeo value)
7131593b 4320 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4321 //-------------------------------------------------------------------
4322
4323 // Define budget mode:
4324 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4325 // 1: material from TGeo in one step (on the fly)
e50912db 4326 // 2: material from lut
9be1d1c7 4327 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4328 Int_t mode;
4329 switch(fUseTGeo) {
4330 case 0:
4331 mode=0;
4332 break;
4333 case 1:
4334 mode=1;
4335 break;
4336 case 2:
4337 mode=2;
4338 break;
4339 case 3:
4340 if(fTrackingPhase.Contains("Clusters2Tracks"))
4341 { mode=3; } else { mode=1; }
4342 break;
4343 case 4:
4344 if(fTrackingPhase.Contains("Clusters2Tracks"))
4345 { mode=3; } else { mode=2; }
4346 break;
4347 default:
4348 mode=0;
4349 break;
4350 }
4351 if(fTrackingPhase.Contains("Default")) mode=0;
4352
4353 Int_t index=fCurrentEsdTrack;
4354
4355 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4356 Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe());
70e83b26 4357 Double_t xToGo;
4358 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4359
4360 Double_t xOverX0,x0,lengthTimesMeanDensity;
e50912db 4361
4362 switch(mode) {
4363 case 0:
4364 xOverX0 = AliITSRecoParam::GetdPipe();
4365 x0 = AliITSRecoParam::GetX0Be();
4366 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4367 lengthTimesMeanDensity *= dir;
7131593b 4368 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4369 break;
4370 case 1:
4371 if (!t->PropagateToTGeo(xToGo,1)) return 0;
e50912db 4372 break;
4373 case 2:
4374 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
4375 xOverX0 = fxOverX0Pipe;
4376 lengthTimesMeanDensity = fxTimesRhoPipe;
9be1d1c7 4377 lengthTimesMeanDensity *= dir;
7131593b 4378 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4379 break;
4380 case 3:
4381 if(!fxOverX0PipeTrks || index<0 || index>=fNtracks) Error("CorrectForPipeMaterial","Incorrect usage of UseTGeo option!\n");
4382 if(fxOverX0PipeTrks[index]<0) {
4383 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
4384 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4385 ((1.-t->GetSnp())*(1.+t->GetSnp())));
e50912db 4386 fxOverX0PipeTrks[index] = TMath::Abs(xOverX0)/angle;
4387 fxTimesRhoPipeTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4388 return 1;
4389 }
4390 xOverX0 = fxOverX0PipeTrks[index];
4391 lengthTimesMeanDensity = fxTimesRhoPipeTrks[index];
9be1d1c7 4392 lengthTimesMeanDensity *= dir;
7131593b 4393 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4394 break;
4395 }
4396
e50912db 4397 return 1;
4398}
4399//------------------------------------------------------------------------
4400Int_t AliITStrackerMI::CorrectForShieldMaterial(AliITStrackMI *t,
4401 TString shield,
4402 TString direction) {
4403 //-------------------------------------------------------------------
4404 // Propagate beyond SPD or SDD shield and correct for material
4405 // (material budget in different ways according to fUseTGeo value)
7131593b 4406 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4407 //-------------------------------------------------------------------
4408
4409 // Define budget mode:
4410 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4411 // 1: material from TGeo in steps of X cm (on the fly)
4412 // X = AliITSRecoParam::GetStepSizeTGeo()
e50912db 4413 // 2: material from lut
9be1d1c7 4414 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4415 Int_t mode;
4416 switch(fUseTGeo) {
4417 case 0:
4418 mode=0;
4419 break;
4420 case 1:
4421 mode=1;
4422 break;
4423 case 2:
4424 mode=2;
4425 break;
4426 case 3:
4427 if(fTrackingPhase.Contains("Clusters2Tracks"))
4428 { mode=3; } else { mode=1; }
4429 break;
4430 case 4:
4431 if(fTrackingPhase.Contains("Clusters2Tracks"))
4432 { mode=3; } else { mode=2; }
4433 break;
4434 default:
4435 mode=0;
4436 break;
4437 }
4438 if(fTrackingPhase.Contains("Default")) mode=0;
4439
4440 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4441 Double_t rToGo;
4442 Int_t shieldindex=0;
4443 if (shield.Contains("SDD")) { // SDDouter
4444 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(1) : AliITSRecoParam::GetrOutsideShield(1));
4445 shieldindex=1;
4446 } else if (shield.Contains("SPD")) { // SPDouter
4447 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(0) : AliITSRecoParam::GetrOutsideShield(0));
4448 shieldindex=0;
4449 } else {
4450 Error("CorrectForShieldMaterial"," Wrong shield name\n");
e50912db 4451 return 0;
4452 }
67178f34 4453
4454 // do nothing if we are already beyond the shield
4455 Double_t rTrack = TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY());
4456 if(dir<0 && rTrack > rToGo) return 1; // going outward
4457 if(dir>0 && rTrack < rToGo) return 1; // going inward
4458
4459
70e83b26 4460 Double_t xToGo;
4461 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4462
4463 Int_t index=2*fCurrentEsdTrack+shieldindex;
4464
4465 Double_t xOverX0,x0,lengthTimesMeanDensity;
9be1d1c7 4466 Int_t nsteps=1;
e50912db 4467
4468 switch(mode) {
4469 case 0:
4470 xOverX0 = AliITSRecoParam::Getdshield(shieldindex);
4471 x0 = AliITSRecoParam::GetX0shield(shieldindex);
4472 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4473 lengthTimesMeanDensity *= dir;
7131593b 4474 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4475 break;
4476 case 1:
9be1d1c7 4477 nsteps= (Int_t)(TMath::Abs(t->GetX()-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
4478 if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
e50912db 4479 break;
4480 case 2:
4481 if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields");
4482 xOverX0 = fxOverX0Shield[shieldindex];
4483 lengthTimesMeanDensity = fxTimesRhoShield[shieldindex];
9be1d1c7 4484 lengthTimesMeanDensity *= dir;
7131593b 4485 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4486 break;
4487 case 3:
4488 if(!fxOverX0ShieldTrks || index<0 || index>=2*fNtracks) Error("CorrectForShieldMaterial","Incorrect usage of UseTGeo option!\n");
4489 if(fxOverX0ShieldTrks[index]<0) {
4490 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
4491 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4492 ((1.-t->GetSnp())*(1.+t->GetSnp())));
e50912db 4493 fxOverX0ShieldTrks[index] = TMath::Abs(xOverX0)/angle;
4494 fxTimesRhoShieldTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4495 return 1;
4496 }
4497 xOverX0 = fxOverX0ShieldTrks[index];
4498 lengthTimesMeanDensity = fxTimesRhoShieldTrks[index];
9be1d1c7 4499 lengthTimesMeanDensity *= dir;
7131593b 4500 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4501 break;
4502 }
4503
e50912db 4504 return 1;
4505}
4506//------------------------------------------------------------------------
4507Int_t AliITStrackerMI::CorrectForLayerMaterial(AliITStrackMI *t,
4508 Int_t layerindex,
4509 Double_t oldGlobXYZ[3],
4510 TString direction) {
4511 //-------------------------------------------------------------------
4512 // Propagate beyond layer and correct for material
4513 // (material budget in different ways according to fUseTGeo value)
7131593b 4514 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4515 //-------------------------------------------------------------------
4516
4517 // Define budget mode:
4518 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4519 // 1: material from TGeo in stepsof X cm (on the fly)
4520 // X = AliITSRecoParam::GetStepSizeTGeo()
e50912db 4521 // 2: material from lut
9be1d1c7 4522 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4523 Int_t mode;
4524 switch(fUseTGeo) {
4525 case 0:
4526 mode=0;
4527 break;
4528 case 1:
4529 mode=1;
4530 break;
4531 case 2:
4532 mode=2;
4533 break;
4534 case 3:
4535 if(fTrackingPhase.Contains("Clusters2Tracks"))
4536 { mode=3; } else { mode=1; }
4537 break;
4538 case 4:
4539 if(fTrackingPhase.Contains("Clusters2Tracks"))
4540 { mode=3; } else { mode=2; }
4541 break;
4542 default:
4543 mode=0;
4544 break;
4545 }
4546 if(fTrackingPhase.Contains("Default")) mode=0;
4547
4548 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4549
4550 Double_t r=fgLayers[layerindex].GetR();
4551 Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r);
4552
4553 Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir;
70e83b26 4554 Double_t xToGo;
4555 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4556
4557 Int_t index=6*fCurrentEsdTrack+layerindex;
4558
e50912db 4559
4560 Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0;
9be1d1c7 4561 Int_t nsteps=1;
7131593b 4562
4563 // back before material (no correction)
d634c32b 4564 Double_t rOld,xOld;
7131593b 4565 rOld=TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
4566 if (!t->GetLocalXat(rOld,xOld)) return 0;
4567 if (!t->Propagate(xOld)) return 0;
e50912db 4568
4569 switch(mode) {
4570 case 0:
4571 xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0);
4572 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4573 lengthTimesMeanDensity *= dir;
7131593b 4574 // Bring the track beyond the material
4575 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4576 break;
4577 case 1:
9be1d1c7 4578 nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
7131593b 4579 if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
e50912db 4580 break;
4581 case 2:
4582 if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers");
4583 xOverX0 = fxOverX0Layer[layerindex];
4584 lengthTimesMeanDensity = fxTimesRhoLayer[layerindex];
9be1d1c7 4585 lengthTimesMeanDensity *= dir;
7131593b 4586 // Bring the track beyond the material
4587 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4588 break;
4589 case 3:
4590 if(!fxOverX0LayerTrks || index<0 || index>=6*fNtracks) Error("CorrectForLayerMaterial","Incorrect usage of UseTGeo option!\n");
7131593b 4591 if(fxOverX0LayerTrks[index]<0) {
4592 nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
4593 if (!t->PropagateToTGeo(xToGo,nsteps,xOverX0,lengthTimesMeanDensity)) return 0;
e50912db 4594 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4595 ((1.-t->GetSnp())*(1.+t->GetSnp())));
7131593b 4596 fxOverX0LayerTrks[index] = TMath::Abs(xOverX0)/angle;
4597 fxTimesRhoLayerTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4598 return 1;
e50912db 4599 }
4600 xOverX0 = fxOverX0LayerTrks[index];
4601 lengthTimesMeanDensity = fxTimesRhoLayerTrks[index];
9be1d1c7 4602 lengthTimesMeanDensity *= dir;
7131593b 4603 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4604 break;
4605 }
4606
7131593b 4607
e50912db 4608 return 1;
4609}
4610//------------------------------------------------------------------------
4611void AliITStrackerMI::MakeTrksMaterialLUT(Int_t ntracks) {
4612 //-----------------------------------------------------------------
4613 // Initialize LUT for storing material for each prolonged track
4614 //-----------------------------------------------------------------
4615 fxOverX0PipeTrks = new Float_t[ntracks];
4616 fxTimesRhoPipeTrks = new Float_t[ntracks];
4617 fxOverX0ShieldTrks = new Float_t[ntracks*2];
4618 fxTimesRhoShieldTrks = new Float_t[ntracks*2];
4619 fxOverX0LayerTrks = new Float_t[ntracks*6];
4620 fxTimesRhoLayerTrks = new Float_t[ntracks*6];
4621
4622 for(Int_t i=0; i<ntracks; i++) {
4623 fxOverX0PipeTrks[i] = -1.;
4624 fxTimesRhoPipeTrks[i] = -1.;
4625 }
4626 for(Int_t j=0; j<ntracks*2; j++) {
4627 fxOverX0ShieldTrks[j] = -1.;
4628 fxTimesRhoShieldTrks[j] = -1.;
4629 }
4630 for(Int_t k=0; k<ntracks*6; k++) {
4631 fxOverX0LayerTrks[k] = -1.;
4632 fxTimesRhoLayerTrks[k] = -1.;
4633 }
4634
4635 fNtracks = ntracks;
4636
4637 return;
4638}
4639//------------------------------------------------------------------------
4640void AliITStrackerMI::DeleteTrksMaterialLUT() {
4641 //-----------------------------------------------------------------
4642 // Delete LUT for storing material for each prolonged track
4643 //-----------------------------------------------------------------
4644 if(fxOverX0PipeTrks) {
4645 delete [] fxOverX0PipeTrks; fxOverX0PipeTrks = 0;
4646 }
4647 if(fxOverX0ShieldTrks) {
4648 delete [] fxOverX0ShieldTrks; fxOverX0ShieldTrks = 0;
4649 }
4650
4651 if(fxOverX0LayerTrks) {
4652 delete [] fxOverX0LayerTrks; fxOverX0LayerTrks = 0;
4653 }
4654 if(fxTimesRhoPipeTrks) {
4655 delete [] fxTimesRhoPipeTrks; fxTimesRhoPipeTrks = 0;
4656 }
4657 if(fxTimesRhoShieldTrks) {
4658 delete [] fxTimesRhoShieldTrks; fxTimesRhoShieldTrks = 0;
4659 }
4660 if(fxTimesRhoLayerTrks) {
4661 delete [] fxTimesRhoLayerTrks; fxTimesRhoLayerTrks = 0;
4662 }
4663 return;
4664}
4665//------------------------------------------------------------------------
4fa7f7d1 4666void AliITStrackerMI::SetForceSkippingOfLayer() {
4667 //-----------------------------------------------------------------
4668 // Check if we are forced to skip layers
4669 // either we set to skip them in RecoParam
4670 // or they were off during data-taking
4671 //-----------------------------------------------------------------
4672
4673 const AliEventInfo *eventInfo = GetEventInfo();
6262dd3d 4674
4fa7f7d1 4675 for(Int_t l=0; l<AliITSgeomTGeo::kNLayers; l++) {
4676 fForceSkippingOfLayer[l] = 0;
4677 // check reco param
4678 if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(l)) fForceSkippingOfLayer[l] = 1;
4679 // check run info
4680
87b4605f 4681 if(eventInfo &&
4682 AliITSReconstructor::GetRecoParam()->GetSkipSubdetsNotInTriggerCluster()) {
4fa7f7d1 4683 AliDebug(2,Form("GetEventInfo->GetTriggerCluster: %s",eventInfo->GetTriggerCluster()));
4684 if(l==0 || l==1) {
4685 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSPD")) fForceSkippingOfLayer[l] = 1;
4686 } else if(l==2 || l==3) {
4687 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSDD")) fForceSkippingOfLayer[l] = 1;
4688 } else {
4689 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSSD")) fForceSkippingOfLayer[l] = 1;
4690 }
4691 }
4692 }
4693 return;
4694}
4695//------------------------------------------------------------------------
a70ed6ad 4696Int_t AliITStrackerMI::CheckSkipLayer(const AliITStrackMI *track,
6518a6c5 4697 Int_t ilayer,Int_t idet) const {
2755f080 4698 //-----------------------------------------------------------------
4699 // This method is used to decide whether to allow a prolongation
4700 // without clusters, because we want to skip the layer.
4701 // In this case the return value is > 0:
4702 // return 1: the user requested to skip a layer
371164ec 4703 // return 2: track outside z acceptance
2755f080 4704 //-----------------------------------------------------------------
e43c066c 4705
4fa7f7d1 4706 if (ForceSkippingOfLayer(ilayer)) return 1;
51ad6848 4707
371164ec 4708 Int_t innerLayCanSkip=0; // was 2, changed on 05.11.2009
4709
4710 if (idet<0 && // out in z
4711 ilayer>innerLayCanSkip &&
4712 AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance()) {
2755f080 4713 // check if track will cross SPD outer layer
4714 Double_t phiAtSPD2,zAtSPD2;
6518a6c5 4715 if (track->GetPhiZat(fgLayers[1].GetR(),phiAtSPD2,zAtSPD2)) {
2755f080 4716 if (TMath::Abs(zAtSPD2)<2.*AliITSRecoParam::GetSPDdetzlength()) return 2;
4717 }
371164ec 4718 return 2; // always allow skipping, changed on 05.11.2009
2755f080 4719 }
51ad6848 4720
2755f080 4721 return 0;
4722}
4723//------------------------------------------------------------------------
23197852 4724Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track,
ae00569a 4725 Int_t ilayer,Int_t idet,
1c97ce2f 4726 Double_t dz,Double_t dy,
23197852 4727 Bool_t noClusters) const {
6518a6c5 4728 //-----------------------------------------------------------------
4729 // This method is used to decide whether to allow a prolongation
ae00569a 4730 // without clusters, because there is a dead zone in the road.
6518a6c5 4731 // In this case the return value is > 0:
4732 // return 1: dead zone at z=0,+-7cm in SPD
bf1cd124 4733 // This method assumes that fSPDdetzcentre is ordered from -z to +z
23197852 4734 // return 2: all road is "bad" (dead or noisy) from the OCDB
f8720bda 4735 // return 3: at least a chip is "bad" (dead or noisy) from the OCDB
4736 // return 4: at least a single channel is "bad" (dead or noisy) from the OCDB
6518a6c5 4737 //-----------------------------------------------------------------
4738
4739 // check dead zones at z=0,+-7cm in the SPD
4740 if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
4741 Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4742 fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4743 fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()};
4744 Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4745 fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4746 fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()};
4747 for (Int_t i=0; i<3; i++)
4187a601 4748 if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) {
bf1cd124 4749 AliDebug(2,Form("crack SPD %d track z %f %f %f %f\n",ilayer,track->GetZ(),dz,zmaxdead[i],zmindead[i]));
4750 if (GetSPDDeadZoneProbability(track->GetZ(),TMath::Sqrt(track->GetSigmaZ2()))>0.1) return 1;
4187a601 4751 }
6518a6c5 4752 }
4753
23197852 4754 // check bad zones from OCDB
4755 if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0;
ae00569a 4756
23197852 4757 if (idet<0) return 0;
ae00569a 4758
23197852 4759 AliITSdetector &det=fgLayers[ilayer].GetDetector(idet);
4760
23197852 4761 Int_t detType=-1;
4762 Float_t detSizeFactorX=0.0001,detSizeFactorZ=0.0001;
4763 if (ilayer==0 || ilayer==1) { // ---------- SPD
4764 detType = 0;
4765 } else if (ilayer==2 || ilayer==3) { // ---------- SDD
4766 detType = 1;
4767 detSizeFactorX *= 2.;
4768 } else if (ilayer==4 || ilayer==5) { // ---------- SSD
4769 detType = 2;
4770 }
a70ed6ad 4771 AliITSsegmentation *segm = (AliITSsegmentation*)fkDetTypeRec->GetSegmentationModel(detType);
23197852 4772 if (detType==2) segm->SetLayer(ilayer+1);
4773 Float_t detSizeX = detSizeFactorX*segm->Dx();
4774 Float_t detSizeZ = detSizeFactorZ*segm->Dz();
4775
4776 // check if the road overlaps with bad chips
4777 Float_t xloc,zloc;
e9b15b0c 4778 if(!(LocalModuleCoord(ilayer,idet,track,xloc,zloc)))return 0;
1c97ce2f 4779 Float_t zlocmin = zloc-dz;
4780 Float_t zlocmax = zloc+dz;
4781 Float_t xlocmin = xloc-dy;
4782 Float_t xlocmax = xloc+dy;
23197852 4783 Int_t chipsInRoad[100];
4784
4187a601 4785 // check if road goes out of detector
4786 Bool_t touchNeighbourDet=kFALSE;
6262dd3d 4787 if (TMath::Abs(xlocmin)>0.5*detSizeX) {xlocmin=-0.4999*detSizeX; touchNeighbourDet=kTRUE;}
4788 if (TMath::Abs(xlocmax)>0.5*detSizeX) {xlocmax=+0.4999*detSizeX; touchNeighbourDet=kTRUE;}
4789 if (TMath::Abs(zlocmin)>0.5*detSizeZ) {zlocmin=-0.4999*detSizeZ; touchNeighbourDet=kTRUE;}
4790 if (TMath::Abs(zlocmax)>0.5*detSizeZ) {zlocmax=+0.4999*detSizeZ; touchNeighbourDet=kTRUE;}
4187a601 4791 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));
4792
4793 // check if this detector is bad
4794 if (det.IsBad()) {
4795 AliDebug(2,Form("lay %d bad detector %d",ilayer,idet));
4796 if(!touchNeighbourDet) {
4797 return 2; // all detectors in road are bad
4798 } else {
4799 return 3; // at least one is bad
4800 }
4801 }
4802
5d1c3df8 4803 if(zlocmin>zlocmax)return 0;
23197852 4804 Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax);
4187a601 4805 AliDebug(2,Form("lay %d nChipsInRoad %d",ilayer,nChipsInRoad));
23197852 4806 if (!nChipsInRoad) return 0;
4807
4808 Bool_t anyBad=kFALSE,anyGood=kFALSE;
4809 for (Int_t iCh=0; iCh<nChipsInRoad; iCh++) {
4810 if (chipsInRoad[iCh]<0 || chipsInRoad[iCh]>det.GetNChips()-1) continue;
4187a601 4811 AliDebug(2,Form(" chip %d bad %d",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh])));
23197852 4812 if (det.IsChipBad(chipsInRoad[iCh])) {
4813 anyBad=kTRUE;
4814 } else {
4815 anyGood=kTRUE;
4816 }
6518a6c5 4817 }
4818
4187a601 4819 if (!anyGood) {
4820 if(!touchNeighbourDet) {
4821 AliDebug(2,"all bad in road");
4822 return 2; // all chips in road are bad
4823 } else {
4824 return 3; // at least a bad chip in road
4825 }
4826 }
23197852 4827
4187a601 4828 if (anyBad) {
4829 AliDebug(2,"at least a bad in road");
4830 return 3; // at least a bad chip in road
4831 }
23197852 4832
4833
4834 if (!AliITSReconstructor::GetRecoParam()->GetUseSingleBadChannelsFromOCDB()
23197852 4835 || !noClusters) return 0;
4836
4837 // There are no clusters in road: check if there is at least
6a0fdcbd 4838 // a bad SPD pixel or SDD anode or SSD strips on both sides
23197852 4839
4187a601 4840 Int_t idetInITS=idet;
4841 for(Int_t l=0;l<ilayer;l++) idetInITS+=AliITSgeomTGeo::GetNLadders(l+1)*AliITSgeomTGeo::GetNDetectors(l+1);
23197852 4842
4187a601 4843 if (fITSChannelStatus->AnyBadInRoad(idetInITS,zlocmin,zlocmax,xlocmin,xlocmax)) {
4844 AliDebug(2,Form("Bad channel in det %d of layer %d\n",idet,ilayer));
f8720bda 4845 return 4;
4187a601 4846 }
4847 //if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3;
23197852 4848
6518a6c5 4849 return 0;
4850}
4851//------------------------------------------------------------------------
ae00569a 4852Bool_t AliITStrackerMI::LocalModuleCoord(Int_t ilayer,Int_t idet,
a70ed6ad 4853 const AliITStrackMI *track,
ae00569a 4854 Float_t &xloc,Float_t &zloc) const {
4855 //-----------------------------------------------------------------
4856 // Gives position of track in local module ref. frame
4857 //-----------------------------------------------------------------
4858
4859 xloc=0.;
4860 zloc=0.;
4861
371164ec 4862 if(idet<0) return kTRUE; // track out of z acceptance of layer
ae00569a 4863
4864 Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
4865
4866 Int_t lad = Int_t(idet/ndet) + 1;
4a66240a 4867
ae00569a 4868 Int_t det = idet - (lad-1)*ndet + 1;
4869
4870 Double_t xyzGlob[3],xyzLoc[3];
4871
1c97ce2f 4872 AliITSdetector &detector = fgLayers[ilayer].GetDetector(idet);
4873 // take into account the misalignment: xyz at real detector plane
d1181f10 4874 if(!track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob)) return kFALSE;
ae00569a 4875
d1181f10 4876 if(!AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc)) return kFALSE;
ae00569a 4877
4878 xloc = (Float_t)xyzLoc[0];
4879 zloc = (Float_t)xyzLoc[2];
4880
4881 return kTRUE;
4882}
4883//------------------------------------------------------------------------
879cdb02 4884//------------------------------------------------------------------------
a70ed6ad 4885Bool_t AliITStrackerMI::IsOKForPlaneEff(const AliITStrackMI* track, const Int_t *clusters, Int_t ilayer) const {
0e91092f 4886//
4887// Method to be optimized further:
4888// Aim: decide whether a track can be used for PlaneEff evaluation
4889// the decision is taken based on the track quality at the layer under study
4890// no information on the clusters on this layer has to be used
4891// The criterium is to reject tracks at boundaries between basic block (e.g. SPD chip)
4892// the cut is done on number of sigmas from the boundaries
4893//
4894// Input: Actual track, layer [0,5] under study
4895// Output: none
4896// Return: kTRUE if this is a good track
7167ae53 4897//
4898// it will apply a pre-selection to obtain good quality tracks.
4899// Here also you will have the possibility to put a control on the
4900// impact point of the track on the basic block, in order to exclude border regions
4901// this will be done by calling a proper method of the AliITSPlaneEff class.
4902//
4903// input: AliITStrackMI* track, ilayer= layer number [0,5]
0e91092f 4904// return: Bool_t -> kTRUE if usable track, kFALSE if not usable.
0ed58a47 4905//
4906 Int_t index[AliITSgeomTGeo::kNLayers];
4907 Int_t k;
4908 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
4909 //
4910 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
4911 index[k]=clusters[k];
4912 }
4913
0e91092f 4914 if(!fPlaneEff)
a31a139f 4915 {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;}
8a32c4b5 4916 AliITSlayer &layer=fgLayers[ilayer];
4917 Double_t r=layer.GetR();
8a32c4b5 4918 AliITStrackMI tmp(*track);
4919
0ed58a47 4920// require a minimal number of cluster in other layers and eventually clusters in closest layers
f1b15b8d 4921 Int_t nclout=0; Int_t nclin=0;
061c42a0 4922 for(Int_t lay=AliITSgeomTGeo::kNLayers-1;lay>ilayer;lay--) { // count n. of cluster in outermost layers
879cdb02 4923 AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay,
0ed58a47 4924 tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ;
f1b15b8d 4925 // if (tmp.GetClIndex(lay)>=0) nclout++;
4926if(index[lay]>=0)nclout++;
0ed58a47 4927 }
061c42a0 4928 for(Int_t lay=ilayer-1; lay>=0;lay--) { // count n. of cluster in innermost layers
4929 AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay,
4930 tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ;
f1b15b8d 4931 if (index[lay]>=0) nclin++;
061c42a0 4932 }
f1b15b8d 4933 Int_t ncl=nclout+nclin;
0ed58a47 4934 Bool_t nextout = kFALSE;
4935 if(ilayer==AliITSgeomTGeo::kNLayers-1) nextout=kTRUE; // you are already on the outermost layer
9fd412a8 4936 else nextout = ((tmp.GetClIndex(ilayer+1)>=0)? kTRUE : kFALSE );
0ed58a47 4937 Bool_t nextin = kFALSE;
4938 if(ilayer==0) nextin=kTRUE; // you are already on the innermost layer
4939 else nextin = ((index[ilayer-1]>=0)? kTRUE : kFALSE );
061c42a0 4940 // maximum number of missing clusters allowed in outermost layers
f1b15b8d 4941 if(nclout<AliITSgeomTGeo::kNLayers-(ilayer+1)-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersOutPlaneEff())
061c42a0 4942 return kFALSE;
4943 // maximum number of missing clusters allowed (both in innermost and in outermost layers)
4944 if(ncl<AliITSgeomTGeo::kNLayers-1-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersPlaneEff())
0ed58a47 4945 return kFALSE;
4946 if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInOuterLayerPlaneEff() && !nextout) return kFALSE;
4947 if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInInnerLayerPlaneEff() && !nextin) return kFALSE;
4948 if(tmp.Pt() < AliITSReconstructor::GetRecoParam()->GetMinPtPlaneEff()) return kFALSE;
4949 // if(AliITSReconstructor::GetRecoParam()->GetOnlyConstraintPlaneEff() && !tmp.GetConstrain()) return kFALSE;
4950
8a32c4b5 4951// detector number
4952 Double_t phi,z;
4953 if (!tmp.GetPhiZat(r,phi,z)) return kFALSE;
4954 Int_t idet=layer.FindDetectorIndex(phi,z);
4955 if(idet<0) { AliInfo(Form("cannot find detector"));
4956 return kFALSE;}
4957
4958 // here check if it has good Chi Square.
4959
4960 //propagate to the intersection with the detector plane
4961 const AliITSdetector &det=layer.GetDetector(idet);
4962 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return kFALSE;
4963
4964 Float_t locx; //
4965 Float_t locz; //
0e91092f 4966 if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return kFALSE;
8a32c4b5 4967 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
4968 if(key>fPlaneEff->Nblock()) return kFALSE;
4969 Float_t blockXmn,blockXmx,blockZmn,blockZmx;
4970 if (!fPlaneEff->GetBlockBoundaries(key,blockXmn,blockXmx,blockZmn,blockZmx)) return kFALSE;
8a32c4b5 4971 //***************
0e91092f 4972 // DEFINITION OF SEARCH ROAD FOR accepting a track
8a32c4b5 4973 //
061c42a0 4974 Double_t nsigx=AliITSReconstructor::GetRecoParam()->GetNSigXFromBoundaryPlaneEff();
4975 Double_t nsigz=AliITSReconstructor::GetRecoParam()->GetNSigZFromBoundaryPlaneEff();
0e91092f 4976 Double_t dx=nsigx*TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
4977 Double_t dz=nsigz*TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
879cdb02 4978 // done for RecPoints
8a32c4b5 4979
1c97ce2f 4980 // exclude tracks at boundary between detectors
0e91092f 4981 //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidthPlaneEff();
8a32c4b5 4982 Double_t boundaryWidth=0; // for the time being hard-wired, later on from AliITSRecoParam
a31a139f 4983 AliDebug(2,Form("Tracking: track impact x=%f, y=%f, z=%f",tmp.GetX(), tmp.GetY(), tmp.GetZ()));
0e91092f 4984 AliDebug(2,Form("Local: track impact x=%f, z=%f",locx,locz));
4985 AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dx,dz));
0e91092f 4986 if ( (locx-dx < blockXmn+boundaryWidth) ||
4987 (locx+dx > blockXmx-boundaryWidth) ||
4988 (locz-dz < blockZmn+boundaryWidth) ||
4989 (locz+dz > blockZmx-boundaryWidth) ) return kFALSE;
8a32c4b5 4990 return kTRUE;
7167ae53 4991}
4992//------------------------------------------------------------------------
a70ed6ad 4993void AliITStrackerMI::UseTrackForPlaneEff(const AliITStrackMI* track, Int_t ilayer) {
7167ae53 4994//
4995// This Method has to be optimized! For the time-being it uses the same criteria
4996// as those used in the search of extra clusters for overlapping modules.
4997//
4998// Method Purpose: estabilish whether a track has produced a recpoint or not
4999// in the layer under study (For Plane efficiency)
5000//
5001// inputs: AliITStrackMI* track (pointer to a usable track)
5002// outputs: none
5003// side effects: update (by 1 count) the Plane Efficiency statistics of the basic block
5004// traversed by this very track. In details:
5005// - if a cluster can be associated to the track then call
5006// AliITSPlaneEff::UpDatePlaneEff(key,kTRUE);
5007// - if not, the AliITSPlaneEff::UpDatePlaneEff(key,kFALSE) is called
5008//
a31a139f 5009 if(!fPlaneEff)
5010 {AliWarning("UseTrackForPlaneEff: null pointer to AliITSPlaneEff"); return;}
7167ae53 5011 AliITSlayer &layer=fgLayers[ilayer];
5012 Double_t r=layer.GetR();
7167ae53 5013 AliITStrackMI tmp(*track);
5014
5015// detector number
5016 Double_t phi,z;
5017 if (!tmp.GetPhiZat(r,phi,z)) return;
5018 Int_t idet=layer.FindDetectorIndex(phi,z);
5019
8a32c4b5 5020 if(idet<0) { AliInfo(Form("cannot find detector"));
5021 return;}
7167ae53 5022
7167ae53 5023
0e91092f 5024//propagate to the intersection with the detector plane
7167ae53 5025 const AliITSdetector &det=layer.GetDetector(idet);
5026 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return;
8a32c4b5 5027
1c97ce2f 5028
0e91092f 5029//***************
5030// DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
5031//
5032 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
5033 TMath::Sqrt(tmp.GetSigmaZ2() +
5034 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5035 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5036 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
5037 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
5038 TMath::Sqrt(tmp.GetSigmaY2() +
5039 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5040 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5041 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
5042
5043// road in global (rphi,z) [i.e. in tracking ref. system]
5044 Double_t zmin = tmp.GetZ() - dz;
5045 Double_t zmax = tmp.GetZ() + dz;
5046 Double_t ymin = tmp.GetY() + r*det.GetPhi() - dy;
5047 Double_t ymax = tmp.GetY() + r*det.GetPhi() + dy;
5048
5049// select clusters in road
7167ae53 5050 layer.SelectClusters(zmin,zmax,ymin,ymax);
5051
0e91092f 5052// Define criteria for track-cluster association
7167ae53 5053 Double_t msz = tmp.GetSigmaZ2() +
5054 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5055 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5056 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
5057 Double_t msy = tmp.GetSigmaY2() +
5058 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5059 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5060 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
8a32c4b5 5061 if (tmp.GetConstrain()) {
7167ae53 5062 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
5063 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
8a32c4b5 5064 } else {
5065 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
5066 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
5067 }
7167ae53 5068 msz = 1./msz; // 1/RoadZ^2
5069 msy = 1./msy; // 1/RoadY^2
0e91092f 5070//
7167ae53 5071
5072 const AliITSRecPoint *cl=0; Int_t clidx=-1, ci=-1;
5073 Int_t idetc=-1;
8a32c4b5 5074 Double_t chi2trkcl=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
5075 //Double_t tolerance=0.2;
5076 /*while ((cl=layer.GetNextCluster(clidx))!=0) {
7167ae53 5077 idetc = cl->GetDetectorIndex();
5078 if(idet!=idetc) continue;
5079 //Int_t ilay = cl->GetLayer();
5080
5081 if (TMath::Abs(tmp.GetZ() - cl->GetZ()) > tolerance) continue;
5082 if (TMath::Abs(tmp.GetY() - cl->GetY()) > tolerance) continue;
5083
5084 Double_t chi2=tmp.GetPredictedChi2(cl);
8a32c4b5 5085 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; }
5086 }*/
5087 Float_t locx; //
5088 Float_t locz; //
0e91092f 5089 if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return;
7167ae53 5090//
5091 AliDebug(2,Form("ilayer= %d, idet=%d, x= %f, z=%f",ilayer,idet,locx,locz));
5092 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
5093 if(key>fPlaneEff->Nblock()) return;
5094 Bool_t found=kFALSE;
8a32c4b5 5095 //if (ci>=0) {
1cc5cedc 5096 Double_t chi2;
8a32c4b5 5097 while ((cl=layer.GetNextCluster(clidx))!=0) {
5098 idetc = cl->GetDetectorIndex();
5099 if(idet!=idetc) continue;
5100 // here real control to see whether the cluster can be associated to the track.
5101 // cluster not associated to track
5102 if ( (tmp.GetZ()-cl->GetZ())*(tmp.GetZ()-cl->GetZ())*msz +
5103 (tmp.GetY()-cl->GetY())*(tmp.GetY()-cl->GetY())*msy > 1. ) continue;
5104 // calculate track-clusters chi2
1cc5cedc 5105 chi2 = GetPredictedChi2MI(&tmp,cl,ilayer); // note that this method change track tmp
5106 // in particular, the error associated to the cluster
8a32c4b5 5107 //Double_t chi2 = tmp.GetPredictedChi(cl); // this method does not change track tmp
5108 // chi2 cut
5109 if (chi2 > AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) continue;
7167ae53 5110 found=kTRUE;
8a32c4b5 5111 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } // this just to trace which cluster is selected
7167ae53 5112 // track->SetExtraCluster(ilayer,(ilayer<<28)+ci);
5113 // track->SetExtraModule(ilayer,idetExtra);
5114 }
5115 if(!fPlaneEff->UpDatePlaneEff(found,key))
8a32c4b5 5116 AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for key=%d",key));
1f1e7832 5117
5118// this for FO efficiency studies (only for SPD) //
5119 UInt_t keyFO=999999;
5120 Bool_t foundFO=kFALSE;
5121 if(ilayer<2){ //ONLY SPD layers for FastOr studies
5122 TBits mapFO = fkDetTypeRec->GetFastOrFiredMap();
5123 Int_t phase = (fEsd->GetBunchCrossNumber())%4;
5124 if(!fSPDChipIntPlaneEff[key]){
5125 AliITSPlaneEffSPD spd;
5126 keyFO = spd.SwitchChipKeyNumbering(key);
5127 if(mapFO.TestBitNumber(keyFO))foundFO=kTRUE;
5128 keyFO = key + (AliITSPlaneEffSPD::kNModule*AliITSPlaneEffSPD::kNChip)*(phase+1);
5129 if(keyFO<AliITSPlaneEffSPD::kNModule*AliITSPlaneEffSPD::kNChip) {
5130 AliWarning(Form("UseTrackForPlaneEff: too small keyF0 (= %d), setting it to 999999",keyFO));
5131 keyFO=999999;
5132 }
5133 if(!fPlaneEff->UpDatePlaneEff(foundFO,keyFO))
5134 AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for FastOR for key=%d",keyFO));
5135 }
5136 }
5137
5138
5139
5fbd4fd6 5140 if(fPlaneEff->GetCreateHistos()&& AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) {
1cc5cedc 5141 Float_t tr[4]={99999.,99999.,9999.,9999.}; // initialize to high values
5142 Float_t clu[4]={-99999.,-99999.,9999.,9999.}; // (in some cases GetCov fails)
5143 Int_t cltype[2]={-999,-999};
879cdb02 5144 // and the module
5145
f1b15b8d 5146 Float_t angleModTrack[3]={99999.,99999.,99999.}; // angles (phi, z and "absolute angle") between the track and the mormal to the module (see below)
0e91092f 5147
5148 tr[0]=locx;
5149 tr[1]=locz;
5150 tr[2]=TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
5151 tr[3]=TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
5152
3ebe30ad 5153 if (found){
5154 clu[0]=layer.GetCluster(ci)->GetDetLocalX();
5155 clu[1]=layer.GetCluster(ci)->GetDetLocalZ();
5156 cltype[0]=layer.GetCluster(ci)->GetNy();
5157 cltype[1]=layer.GetCluster(ci)->GetNz();
1cc5cedc 5158
5159 // Without the following 6 lines you would retrieve the nominal error of a cluster (e.g. for the SPD:
5160 // X->50/sqrt(12)=14 micron Z->450/sqrt(12)= 120 micron)
5161 // Within AliTrackerMI/AliTrackMI the error on the cluster is associated to the AliITStrackMI (fSigmaY,Z)
5162 // It is computed properly by calling the method
5163 // AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
5164 // T
5165 //Double_t x=0.5*(tmp.GetX()+layer.GetCluster(ci)->GetX()); // Take into account the mis-alignment
5166 //if (tmp.PropagateTo(x,0.,0.)) {
5167 chi2=GetPredictedChi2MI(&tmp,layer.GetCluster(ci),ilayer);
5168 AliCluster c(*layer.GetCluster(ci));
5169 c.SetSigmaY2(tmp.GetSigmaY(ilayer)*tmp.GetSigmaY(ilayer));
5170 c.SetSigmaZ2(tmp.GetSigmaZ(ilayer)*tmp.GetSigmaZ(ilayer));
1cc5cedc 5171 //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors
0e91092f 5172 clu[2]=TMath::Sqrt(c.GetSigmaY2());
5173 clu[3]=TMath::Sqrt(c.GetSigmaZ2());
1cc5cedc 5174 //}
3ebe30ad 5175 }
879cdb02 5176 // Compute the angles between the track and the module
5177 // compute the angle "in phi direction", i.e. the angle in the transverse plane
5178 // between the normal to the module and the projection (in the transverse plane) of the
5179 // track trajectory
5180 // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
5181 Float_t tgl = tmp.GetTgl();
5182 Float_t phitr = tmp.GetSnp();
5183 phitr = TMath::ASin(phitr);
5184 Int_t volId = AliGeomManager::LayerToVolUIDSafe(ilayer+1 ,idet );
5185
5186 Double_t tra[3]; AliGeomManager::GetOrigTranslation(volId,tra);
5187 Double_t rot[9]; AliGeomManager::GetOrigRotation(volId,rot);
5188 Double_t alpha =0.;
5189 alpha = tmp.GetAlpha();
5190 Double_t phiglob = alpha+phitr;
5191 Double_t p[3];
5192 p[0] = TMath::Cos(phiglob);
5193 p[1] = TMath::Sin(phiglob);
5194 p[2] = tgl;
5195 TVector3 pvec(p[0],p[1],p[2]);
5196 TVector3 normvec(rot[1],rot[4],rot[7]);
5197 Double_t angle = pvec.Angle(normvec);
5198
5199 if(angle>0.5*TMath::Pi()) angle = (TMath::Pi()-angle);
5200 angle *= 180./TMath::Pi();
5201
5202 //Trasverse Plane
5203 TVector3 pt(p[0],p[1],0);
5204 TVector3 normt(rot[1],rot[4],0);
5205 Double_t anglet = pt.Angle(normt);
5206
5207 Double_t phiPt = TMath::ATan2(p[1],p[0]);
5208 if(phiPt<0)phiPt+=2.*TMath::Pi();
5209 Double_t phiNorm = TMath::ATan2(rot[4],rot[1]);
5210 if(phiNorm<0) phiNorm+=2.*TMath::Pi();
5211 if(anglet>0.5*TMath::Pi()) anglet = (TMath::Pi()-anglet);
5212 if(phiNorm>phiPt) anglet*=-1.;// pt-->normt clockwise: anglet>0
5213 if((phiNorm-phiPt)>TMath::Pi()) anglet*=-1.;
5214 anglet *= 180./TMath::Pi();
5215
f1b15b8d 5216 angleModTrack[2]=(Float_t) angle;
5217 angleModTrack[0]=(Float_t) anglet;
879cdb02 5218 // now the "angle in z" (much easier, i.e. the angle between the z axis and the track momentum + 90)
f1b15b8d 5219 angleModTrack[1]=TMath::ACos(tgl/TMath::Sqrt(tgl*tgl+1.));
5220 angleModTrack[1]-=TMath::Pi()/2.; // range of angle is -pi/2 , pi/2
5221 angleModTrack[1]*=180./TMath::Pi(); // in degree
879cdb02 5222
f1b15b8d 5223 fPlaneEff->FillHistos(key,found,tr,clu,cltype,angleModTrack);
1f1e7832 5224
5225 // For FO efficiency studies of SPD
f1b15b8d 5226 if(ilayer<2 && !fSPDChipIntPlaneEff[key]) fPlaneEff->FillHistos(keyFO,foundFO,tr,clu,cltype,angleModTrack);
5fbd4fd6 5227 }
1f1e7832 5228 if(ilayer<2) fSPDChipIntPlaneEff[key]=kTRUE;
7167ae53 5229return;
5230}
a4354152 5231
5232Int_t AliITStrackerMI::FindClusterOfTrack(int label, int lr, int* store) const //RS
5233{
5234 // find the MC cluster for the label
5235 return fgLayers[lr].FindClusterForLabel(label,store);
5236}
5237
fa4c46da 5238/*
a4354152 5239Int_t AliITStrackerMI::GetPattern(const AliITStrackMI* track, char* patt)
5240{
5241 // creates pattarn of hits marking fake/corrects by f/c. Used for debugging (RS)
cff9e015 5242 strncpy(patt,"......",6);
a4354152 5243 int tpcLabel = 0;
5244 if (track->GetESDtrack()) tpcLabel = track->GetESDtrack()->GetTPCLabel();
5245 //
5246 int nwrong = 0;
5247 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
5248 Int_t cindex = track->GetClusterIndex(i);
5249 Int_t l=(cindex & 0xf0000000) >> 28;
5250 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
5251 Int_t isWrong=1;
5252 for (Int_t ind=0;ind<3;ind++) if (cl->GetLabel(ind)==TMath::Abs(tpcLabel)) isWrong=0;
5253 patt[l] = isWrong ? 'f':'c';
5254 nwrong+=isWrong;
5255 }
5256 return nwrong;
5257}
fa4c46da 5258*/
a4354152 5259//------------------------------------------------------------------------
b80c197e 5260Int_t AliITStrackerMI::AliITSlayer::FindClusterForLabel(Int_t label, Int_t *store) const
5261{ //RS
a4354152 5262 //--------------------------------------------------------------------
5263
5264 int nfound = 0;
5265 for (int ic=0;ic<fN;ic++) {
5266 const AliITSRecPoint *cl = GetCluster(ic);
5267 for (int i=0;i<3;i++) if (cl->GetLabel(i)==label) {
5268 if (nfound<50) {
5269 if (store) store[nfound] = ic;
5270 nfound++;
5271 }
5272 break;
5273 }
5274 }
5275 return nfound;
5276}
04315dad 5277