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