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