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Bug fix - chack the abs values
[u/mrichter/AliRoot.git] / ITS / AliITStrackerMI.cxx
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e43c066c 1/**************************************************************************
9a5326b1 2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
e43c066c 3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
fddf8459 15/* $Id$ */
bf6adc12 16
e43c066c 17//-------------------------------------------------------------------------
18// Implementation of the ITS tracker class
00a7cc50 19// It reads AliITSRecPoint clusters and creates AliITStrackMI tracks
e43c066c 20// and fills with them the ESD
15dd636f 21// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
23197852 22// Current support and development:
23// Andrea Dainese, andrea.dainese@lnl.infn.it
afd25725 24// dE/dx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
25// Params moved to AliITSRecoParam by: Andrea Dainese, INFN
26// Material budget from TGeo by: Ludovic Gaudichet & Andrea Dainese, INFN
e43c066c 27//-------------------------------------------------------------------------
bf6adc12 28
29#include <TMatrixD.h>
e43c066c 30#include <TTree.h>
afd25725 31#include <TDatabasePDG.h>
9a5326b1 32#include <TString.h>
e50912db 33#include <TRandom.h>
a70ed6ad 34#include <TTreeStream.h>
879cdb02 35#include <TVector3.h>
bf6adc12 36
4187a601 37#include "AliLog.h"
88e3c173 38#include "AliGeomManager.h"
a70ed6ad 39#include "AliITSPlaneEff.h"
a70ed6ad 40#include "AliTrackPointArray.h"
af885e0f 41#include "AliESDEvent.h"
aad72f45 42#include "AliESDtrack.h"
6c94f330 43#include "AliV0.h"
a70ed6ad 44#include "AliITSChannelStatus.h"
45#include "AliITSDetTypeRec.h"
00a7cc50 46#include "AliITSRecPoint.h"
2b295109 47#include "AliITSRecPointContainer.h"
e341247d 48#include "AliITSgeomTGeo.h"
44347160 49#include "AliITSReconstructor.h"
572f41f9 50#include "AliITSClusterParam.h"
23197852 51#include "AliITSsegmentation.h"
52#include "AliITSCalibration.h"
7167ae53 53#include "AliITSPlaneEffSPD.h"
54#include "AliITSPlaneEffSDD.h"
55#include "AliITSPlaneEffSSD.h"
44396017 56#include "AliITSV0Finder.h"
ae00569a 57#include "AliITStrackerMI.h"
bb7e41dd 58#include "AliMathBase.h"
e43c066c 59
a4354152 60
e43c066c 61ClassImp(AliITStrackerMI)
e43c066c 62
e50912db 63AliITStrackerMI::AliITSlayer AliITStrackerMI::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers
44347160 64
8221b41b 65AliITStrackerMI::AliITStrackerMI():AliTracker(),
66fI(0),
67fBestTrack(),
68fTrackToFollow(),
69fTrackHypothesys(),
70fBestHypothesys(),
71fOriginal(),
72fCurrentEsdTrack(),
73fPass(0),
74fAfterV0(kFALSE),
75fLastLayerToTrackTo(0),
afd25725 76fCoefficients(0),
8221b41b 77fEsd(0),
e50912db 78fTrackingPhase("Default"),
6518a6c5 79fUseTGeo(3),
e50912db 80fNtracks(0),
a4354152 81fFlagFakes(kFALSE),
82fSelectBestMIP03(kFALSE),
83fUseImproveKalman(kFALSE),
e50912db 84fxOverX0Pipe(-1.),
85fxTimesRhoPipe(-1.),
86fxOverX0PipeTrks(0),
87fxTimesRhoPipeTrks(0),
88fxOverX0ShieldTrks(0),
89fxTimesRhoShieldTrks(0),
90fxOverX0LayerTrks(0),
91fxTimesRhoLayerTrks(0),
4a66240a 92fDebugStreamer(0),
23197852 93fITSChannelStatus(0),
a70ed6ad 94fkDetTypeRec(0),
4336faa4 95fPlaneEff(0),
96fITSPid(0)
97
98 {
8221b41b 99 //Default constructor
e50912db 100 Int_t i;
101 for(i=0;i<4;i++) fSPDdetzcentre[i]=0.;
225cff59 102 for(i=0;i<2;i++) {
103 fxOverX0Shield[i]=-1.;
104 fxTimesRhoShield[i]=-1.;
105 fConstraint[i]=0;
106 }
e50912db 107 for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
a0b53cc4 108 fOriginal.SetOwner();
225cff59 109 for(i=0;i<AliITSgeomTGeo::kNLayers;i++)fForceSkippingOfLayer[i]=0;
110 for(i=0;i<100000;i++)fBestTrackIndex[i]=0;
4336faa4 111 fITSPid=new AliITSPIDResponse();
225cff59 112
8221b41b 113}
44347160 114//------------------------------------------------------------------------
1f3e997f 115AliITStrackerMI::AliITStrackerMI(const Char_t *geom) : AliTracker(),
e50912db 116fI(AliITSgeomTGeo::GetNLayers()),
8221b41b 117fBestTrack(),
118fTrackToFollow(),
119fTrackHypothesys(),
120fBestHypothesys(),
121fOriginal(),
122fCurrentEsdTrack(),
123fPass(0),
124fAfterV0(kFALSE),
e50912db 125fLastLayerToTrackTo(AliITSRecoParam::GetLastLayerToTrackTo()),
afd25725 126fCoefficients(0),
8221b41b 127fEsd(0),
e50912db 128fTrackingPhase("Default"),
6518a6c5 129fUseTGeo(3),
e50912db 130fNtracks(0),
a4354152 131fFlagFakes(kFALSE),
132fSelectBestMIP03(kFALSE),
133fUseImproveKalman(kFALSE),
e50912db 134fxOverX0Pipe(-1.),
135fxTimesRhoPipe(-1.),
136fxOverX0PipeTrks(0),
137fxTimesRhoPipeTrks(0),
138fxOverX0ShieldTrks(0),
139fxTimesRhoShieldTrks(0),
140fxOverX0LayerTrks(0),
141fxTimesRhoLayerTrks(0),
4a66240a 142fDebugStreamer(0),
23197852 143fITSChannelStatus(0),
a70ed6ad 144fkDetTypeRec(0),
4336faa4 145fPlaneEff(0),
146fITSPid(0) {
e43c066c 147 //--------------------------------------------------------------------
148 //This is the AliITStrackerMI constructor
149 //--------------------------------------------------------------------
e341247d 150 if (geom) {
151 AliWarning("\"geom\" is actually a dummy argument !");
152 }
153
a0b53cc4 154 fOriginal.SetOwner();
afd25725 155 fCoefficients = 0;
628e7bb0 156 fAfterV0 = kFALSE;
e341247d 157
e50912db 158 for (Int_t i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
e341247d 159 Int_t nlad=AliITSgeomTGeo::GetNLadders(i);
160 Int_t ndet=AliITSgeomTGeo::GetNDetectors(i);
161
162 Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z=xyz[2];
bf1cd124 163 AliITSgeomTGeo::GetTranslation(i,1,1,xyz);
e43c066c 164 Double_t poff=TMath::ATan2(y,x);
165 Double_t zoff=z;
bf1cd124 166
167 AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz);
e341247d 168 Double_t r=TMath::Sqrt(x*x + y*y);
e43c066c 169
e341247d 170 AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz);
e43c066c 171 r += TMath::Sqrt(x*x + y*y);
e341247d 172 AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz);
e43c066c 173 r += TMath::Sqrt(x*x + y*y);
e341247d 174 AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz);
e43c066c 175 r += TMath::Sqrt(x*x + y*y);
176 r*=0.25;
177
178 new (fgLayers+i-1) AliITSlayer(r,poff,zoff,nlad,ndet);
179
180 for (Int_t j=1; j<nlad+1; j++) {
181 for (Int_t k=1; k<ndet+1; k++) { //Fill this layer with detectors
e341247d 182 TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m);
1f3e997f 183 const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k);
184 m.Multiply(tm);
a5d0fae6 185 Double_t txyz[3]={0.};
186 xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
1f3e997f 187 m.LocalToMaster(txyz,xyz);
a5d0fae6 188 r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
1f3e997f 189 Double_t phi=TMath::ATan2(xyz[1],xyz[0]);
e341247d 190
191 if (phi<0) phi+=TMath::TwoPi();
192 else if (phi>=TMath::TwoPi()) phi-=TMath::TwoPi();
193
e43c066c 194 AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
195 new(&det) AliITSdetector(r,phi);
1c97ce2f 196 // compute the real radius (with misalignment)
197 TGeoHMatrix mmisal(*(AliITSgeomTGeo::GetMatrix(i,j,k)));
198 mmisal.Multiply(tm);
199 xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
200 mmisal.LocalToMaster(txyz,xyz);
201 Double_t rmisal=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
202 det.SetRmisal(rmisal);
203
23197852 204 } // end loop on detectors
205 } // end loop on ladders
9cd19c63 206 fForceSkippingOfLayer[i-1] = 0;
23197852 207 } // end loop on layers
e43c066c 208
e43c066c 209
e50912db 210 fI=AliITSgeomTGeo::GetNLayers();
e43c066c 211
212 fPass=0;
213 fConstraint[0]=1; fConstraint[1]=0;
214
afd25725 215 Double_t xyzVtx[]={AliITSReconstructor::GetRecoParam()->GetXVdef(),
216 AliITSReconstructor::GetRecoParam()->GetYVdef(),
217 AliITSReconstructor::GetRecoParam()->GetZVdef()};
218 Double_t ersVtx[]={AliITSReconstructor::GetRecoParam()->GetSigmaXVdef(),
219 AliITSReconstructor::GetRecoParam()->GetSigmaYVdef(),
220 AliITSReconstructor::GetRecoParam()->GetSigmaZVdef()};
221 SetVertex(xyzVtx,ersVtx);
e43c066c 222
e50912db 223 fLastLayerToTrackTo=AliITSRecoParam::GetLastLayerToTrackTo();
628e7bb0 224 for (Int_t i=0;i<100000;i++){
225 fBestTrackIndex[i]=0;
226 }
afd25725 227
228 // store positions of centre of SPD modules (in z)
bf1cd124 229 // The convetion is that fSPDdetzcentre is ordered from -z to +z
afd25725 230 Double_t tr[3];
c3fd826e 231 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
bf1cd124 232 if (tr[2]<0) { // old geom (up to v5asymmPPR)
233 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
234 fSPDdetzcentre[0] = tr[2];
235 AliITSgeomTGeo::GetTranslation(1,1,2,tr);
236 fSPDdetzcentre[1] = tr[2];
237 AliITSgeomTGeo::GetTranslation(1,1,3,tr);
238 fSPDdetzcentre[2] = tr[2];
239 AliITSgeomTGeo::GetTranslation(1,1,4,tr);
240 fSPDdetzcentre[3] = tr[2];
241 } else { // new geom (from v11Hybrid)
242 AliITSgeomTGeo::GetTranslation(1,1,4,tr);
243 fSPDdetzcentre[0] = tr[2];
244 AliITSgeomTGeo::GetTranslation(1,1,3,tr);
245 fSPDdetzcentre[1] = tr[2];
246 AliITSgeomTGeo::GetTranslation(1,1,2,tr);
247 fSPDdetzcentre[2] = tr[2];
248 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
249 fSPDdetzcentre[3] = tr[2];
250 }
afd25725 251
afd25725 252 fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker();
6518a6c5 253 if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) {
254 AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE");
255 fUseTGeo = 3;
256 }
e50912db 257
258 for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
259 for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
260
c0b60eb0 261 if (AliITSReconstructor::GetRecoParam()->GetESDV0Params()->StreamLevel()>0)
262 fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
81e97e0d 263
7167ae53 264 // only for plane efficiency evaluation
58e8dc31 265 if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
266 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0) {
0ed58a47 267 Int_t iplane=AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff();
1a64bda6 268 if(!AliITSReconstructor::GetRecoParam()->GetLayersToSkip(iplane)==1)
0ed58a47 269 AliWarning(Form("Evaluation of Plane Eff for layer %d will be attempted without removing it from tracker",iplane));
270 if (iplane<2) fPlaneEff = new AliITSPlaneEffSPD();
271 else if (iplane<4) fPlaneEff = new AliITSPlaneEffSDD();
272 else fPlaneEff = new AliITSPlaneEffSSD();
275a301c 273 if(AliITSReconstructor::GetRecoParam()->GetReadPlaneEffFromOCDB())
0ed58a47 274 if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;}
275 if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) fPlaneEff->SetCreateHistos(kTRUE);
7167ae53 276 }
a4354152 277 //
278 // RS
04315dad 279 fSelectBestMIP03 = kFALSE;//AliITSReconstructor::GetRecoParam()->GetSelectBestMIP03();
a4354152 280 fFlagFakes = AliITSReconstructor::GetRecoParam()->GetFlagFakes();
281 fUseImproveKalman = AliITSReconstructor::GetRecoParam()->GetUseImproveKalman();
282 //
4336faa4 283 fITSPid=new AliITSPIDResponse();
628e7bb0 284}
225cff59 285/*
44347160 286//------------------------------------------------------------------------
8221b41b 287AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker),
288fI(tracker.fI),
289fBestTrack(tracker.fBestTrack),
290fTrackToFollow(tracker.fTrackToFollow),
291fTrackHypothesys(tracker.fTrackHypothesys),
292fBestHypothesys(tracker.fBestHypothesys),
293fOriginal(tracker.fOriginal),
294fCurrentEsdTrack(tracker.fCurrentEsdTrack),
295fPass(tracker.fPass),
296fAfterV0(tracker.fAfterV0),
297fLastLayerToTrackTo(tracker.fLastLayerToTrackTo),
afd25725 298fCoefficients(tracker.fCoefficients),
8221b41b 299fEsd(tracker.fEsd),
e50912db 300fTrackingPhase(tracker.fTrackingPhase),
afd25725 301fUseTGeo(tracker.fUseTGeo),
e50912db 302fNtracks(tracker.fNtracks),
a4354152 303fFlagFakes(tracker.fFlagFakes),
304fSelectBestMIP03(tracker.fSelectBestMIP03),
e50912db 305fxOverX0Pipe(tracker.fxOverX0Pipe),
306fxTimesRhoPipe(tracker.fxTimesRhoPipe),
307fxOverX0PipeTrks(0),
308fxTimesRhoPipeTrks(0),
309fxOverX0ShieldTrks(0),
310fxTimesRhoShieldTrks(0),
311fxOverX0LayerTrks(0),
312fxTimesRhoLayerTrks(0),
4a66240a 313fDebugStreamer(tracker.fDebugStreamer),
23197852 314fITSChannelStatus(tracker.fITSChannelStatus),
a70ed6ad 315fkDetTypeRec(tracker.fkDetTypeRec),
ae00569a 316fPlaneEff(tracker.fPlaneEff) {
8221b41b 317 //Copy constructor
a0b53cc4 318 fOriginal.SetOwner();
e50912db 319 Int_t i;
320 for(i=0;i<4;i++) {
321 fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i];
322 }
323 for(i=0;i<6;i++) {
324 fxOverX0Layer[i]=tracker.fxOverX0Layer[i];
325 fxTimesRhoLayer[i]=tracker.fxTimesRhoLayer[i];
326 }
327 for(i=0;i<2;i++) {
328 fxOverX0Shield[i]=tracker.fxOverX0Shield[i];
329 fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i];
330 }
8221b41b 331}
225cff59 332
44347160 333//------------------------------------------------------------------------
8221b41b 334AliITStrackerMI & AliITStrackerMI::operator=(const AliITStrackerMI &tracker){
335 //Assignment operator
336 this->~AliITStrackerMI();
337 new(this) AliITStrackerMI(tracker);
338 return *this;
339}
225cff59 340*/
44347160 341//------------------------------------------------------------------------
628e7bb0 342AliITStrackerMI::~AliITStrackerMI()
343{
344 //
345 //destructor
346 //
e50912db 347 if (fCoefficients) delete [] fCoefficients;
348 DeleteTrksMaterialLUT();
81e97e0d 349 if (fDebugStreamer) {
350 //fDebugStreamer->Close();
351 delete fDebugStreamer;
352 }
23197852 353 if(fITSChannelStatus) delete fITSChannelStatus;
354 if(fPlaneEff) delete fPlaneEff;
4336faa4 355 if(fITSPid) delete fITSPid;
356
e43c066c 357}
44347160 358//------------------------------------------------------------------------
23197852 359void AliITStrackerMI::ReadBadFromDetTypeRec() {
360 //--------------------------------------------------------------------
361 //This function read ITS bad detectors, chips, channels from AliITSDetTypeRec
362 //i.e. from OCDB
363 //--------------------------------------------------------------------
364
365 if(!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return;
366
4187a601 367 Info("ReadBadFromDetTypeRec","Reading info about bad ITS detectors and channels");
23197852 368
a70ed6ad 369 if(!fkDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n");
23197852 370
371 // ITS channels map
372 if(fITSChannelStatus) delete fITSChannelStatus;
a70ed6ad 373 fITSChannelStatus = new AliITSChannelStatus(fkDetTypeRec);
23197852 374
375 // ITS detectors and chips
376 Int_t i=0,j=0,k=0,ndet=0;
377 for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
4187a601 378 Int_t nBadDetsPerLayer=0;
23197852 379 ndet=AliITSgeomTGeo::GetNDetectors(i);
380 for (j=1; j<AliITSgeomTGeo::GetNLadders(i)+1; j++) {
381 for (k=1; k<ndet+1; k++) {
382 AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
a70ed6ad 383 det.ReadBadDetectorAndChips(i-1,(j-1)*ndet + k-1,fkDetTypeRec);
4187a601 384 if(det.IsBad()) {nBadDetsPerLayer++;}
23197852 385 } // end loop on detectors
386 } // end loop on ladders
e9b15b0c 387 AliInfo(Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i)));
23197852 388 } // end loop on layers
389
390 return;
391}
392//------------------------------------------------------------------------
e43c066c 393Int_t AliITStrackerMI::LoadClusters(TTree *cTree) {
394 //--------------------------------------------------------------------
395 //This function loads ITS clusters
396 //--------------------------------------------------------------------
2b295109 397
398 TClonesArray *clusters = NULL;
399 AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance();
400 clusters=rpcont->FetchClusters(0,cTree);
9cd19c63 401 if(!clusters) return 1;
402
2b295109 403 if(!(rpcont->IsSPDActive() || rpcont->IsSDDActive() || rpcont->IsSSDActive())){
404 AliError("ITS is not in a known running configuration: SPD, SDD and SSD are not active");
405 return 1;
e43c066c 406 }
23197852 407 Int_t i=0,j=0,ndet=0;
e43c066c 408 Int_t detector=0;
23197852 409 for (i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
410 ndet=fgLayers[i].GetNdetectors();
e43c066c 411 Int_t jmax = j + fgLayers[i].GetNladders()*ndet;
412 for (; j<jmax; j++) {
2b295109 413 // if (!cTree->GetEvent(j)) continue;
414 clusters = rpcont->UncheckedGetClusters(j);
415 if(!clusters)continue;
e43c066c 416 Int_t ncl=clusters->GetEntriesFast();
417 SignDeltas(clusters,GetZ());
1f3e997f 418
e43c066c 419 while (ncl--) {
00a7cc50 420 AliITSRecPoint *c=(AliITSRecPoint*)clusters->UncheckedAt(ncl);
75fb37cc 421 detector=c->GetDetectorIndex();
a504d56f 422
75fb37cc 423 if (!c->Misalign()) AliWarning("Can't misalign this cluster !");
6262dd3d 424
425 Int_t retval = fgLayers[i].InsertCluster(new AliITSRecPoint(*c));
426 if(retval) {
427 AliWarning(Form("Too many clusters on layer %d!",i));
428 break;
429 }
e43c066c 430 }
6262dd3d 431
afd25725 432 // add dead zone "virtual" cluster in SPD, if there is a cluster within
433 // zwindow cm from the dead zone
bf1cd124 434 // This method assumes that fSPDdetzcentre is ordered from -z to +z
afd25725 435 if (i<2 && AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
e50912db 436 for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) {
afd25725 437 Int_t lab[4] = {0,0,0,detector};
438 Int_t info[3] = {0,0,i};
6518a6c5 439 Float_t q = 0.; // this identifies virtual clusters
9cd19c63 440 Float_t hit[6] = {xdead,
afd25725 441 0.,
442 AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(),
443 AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(),
9cd19c63 444 q,
445 0.};
afd25725 446 Bool_t local = kTRUE;
447 Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone();
e50912db 448 hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 449 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
450 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 451 hit[1] = fSPDdetzcentre[1]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 452 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
453 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 454 hit[1] = fSPDdetzcentre[1]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 455 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
456 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 457 hit[1] = fSPDdetzcentre[2]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 458 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
459 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 460 hit[1] = fSPDdetzcentre[2]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 461 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
462 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 463 hit[1] = fSPDdetzcentre[3]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 464 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
465 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e43c066c 466 }
6518a6c5 467 } // "virtual" clusters in SPD
e43c066c 468
469 }
470 //
471 fgLayers[i].ResetRoad(); //road defined by the cluster density
472 fgLayers[i].SortClusters();
473 }
474
4fa7f7d1 475 // check whether we have to skip some layers
476 SetForceSkippingOfLayer();
477
e43c066c 478 return 0;
479}
44347160 480//------------------------------------------------------------------------
e43c066c 481void AliITStrackerMI::UnloadClusters() {
482 //--------------------------------------------------------------------
483 //This function unloads ITS clusters
484 //--------------------------------------------------------------------
e50912db 485 for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters();
e43c066c 486}
44347160 487//------------------------------------------------------------------------
23197852 488void AliITStrackerMI::FillClusterArray(TObjArray* array) const {
489 //--------------------------------------------------------------------
490 // Publishes all pointers to clusters known to the tracker into the
491 // passed object array.
492 // The ownership is not transfered - the caller is not expected to delete
493 // the clusters.
494 //--------------------------------------------------------------------
495
496 for(Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
497 for(Int_t icl=0; icl<fgLayers[i].GetNumberOfClusters(); icl++) {
498 AliCluster *cl = (AliCluster*)fgLayers[i].GetCluster(icl);
499 array->AddLast(cl);
500 }
501 }
502
503 return;
504}
505//------------------------------------------------------------------------
44396017 506Int_t AliITStrackerMI::CorrectForTPCtoITSDeadZoneMaterial(AliITStrackMI *t) {
e43c066c 507 //--------------------------------------------------------------------
508 // Correction for the material between the TPC and the ITS
e43c066c 509 //--------------------------------------------------------------------
e50912db 510 if (t->GetX() > AliITSRecoParam::Getriw()) { // inward direction
511 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw(),1)) return 0;// TPC inner wall
512 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
513 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
514 } else if (t->GetX() < AliITSRecoParam::Getrs()) { // outward direction
515 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
516 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
517 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw()+0.001,1)) return 0;// TPC inner wall
e43c066c 518 } else {
44396017 519 printf("CorrectForTPCtoITSDeadZoneMaterial: Track is already in the dead zone !\n");
e50912db 520 return 0;
e43c066c 521 }
522
e50912db 523 return 1;
e43c066c 524}
44347160 525//------------------------------------------------------------------------
af885e0f 526Int_t AliITStrackerMI::Clusters2Tracks(AliESDEvent *event) {
e43c066c 527 //--------------------------------------------------------------------
528 // This functions reconstructs ITS tracks
529 // The clusters must be already loaded !
530 //--------------------------------------------------------------------
fddf8459 531
4fa7f7d1 532 AliDebug(2,Form("SKIPPING %d %d %d %d %d %d",ForceSkippingOfLayer(0),ForceSkippingOfLayer(1),ForceSkippingOfLayer(2),ForceSkippingOfLayer(3),ForceSkippingOfLayer(4),ForceSkippingOfLayer(5)));
fddf8459 533
e50912db 534 fTrackingPhase="Clusters2Tracks";
dc422a31 535 //
536 // RS
04315dad 537 fSelectBestMIP03 = kFALSE;//AliITSReconstructor::GetRecoParam()->GetSelectBestMIP03();
dc422a31 538 fFlagFakes = AliITSReconstructor::GetRecoParam()->GetFlagFakes();
539 fUseImproveKalman = AliITSReconstructor::GetRecoParam()->GetUseImproveKalman();
540 //
e43c066c 541 TObjArray itsTracks(15000);
628e7bb0 542 fOriginal.Clear();
81e97e0d 543 fEsd = event; // store pointer to the esd
afd25725 544
9a5326b1 545 // temporary (for cosmics)
546 if(event->GetVertex()) {
547 TString title = event->GetVertex()->GetTitle();
548 if(title.Contains("cosmics")) {
549 Double_t xyz[3]={GetX(),GetY(),GetZ()};
550 Double_t exyz[3]={0.1,0.1,0.1};
551 SetVertex(xyz,exyz);
552 }
553 }
554 // temporary
75a74b11 555 Int_t noesd = 0;
e43c066c 556 {/* Read ESD tracks */
afd25725 557 Double_t pimass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
e43c066c 558 Int_t nentr=event->GetNumberOfTracks();
75a74b11 559 noesd=nentr;
560 // Info("Clusters2Tracks", "Number of ESD tracks: %d\n", nentr);
e43c066c 561 while (nentr--) {
562 AliESDtrack *esd=event->GetTrack(nentr);
4187a601 563 // ---- for debugging:
564 //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 565
566 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) continue;
567 if (esd->GetStatus()&AliESDtrack::kTPCout) continue;
568 if (esd->GetStatus()&AliESDtrack::kITSin) continue;
51ad6848 569 if (esd->GetKinkIndex(0)>0) continue; //kink daughter
763bdf3e 570 AliITStrackMI *t = new AliITStrackMI(*esd);
b9671574 571 t->GetDZ(GetX(),GetY(),GetZ(),t->GetDP()); //I.B.
572 Double_t vdist = TMath::Sqrt(t->GetD(0)*t->GetD(0)+t->GetD(1)*t->GetD(1));
6518a6c5 573
574
afd25725 575 // look at the ESD mass hypothesys !
576 if (t->GetMass()<0.9*pimass) t->SetMass(pimass);
e43c066c 577 // write expected q
b9671574 578 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e43c066c 579
afd25725 580 if (esd->GetV0Index(0)>0 && t->GetD(0)<AliITSReconstructor::GetRecoParam()->GetMaxDforV0dghtrForProlongation()){
81e97e0d 581 //track - can be V0 according to TPC
afd25725 582 } else {
583 if (TMath::Abs(t->GetD(0))>AliITSReconstructor::GetRecoParam()->GetMaxDForProlongation()) {
81e97e0d 584 delete t;
585 continue;
e50912db 586 }
afd25725 587 if (TMath::Abs(vdist)>AliITSReconstructor::GetRecoParam()->GetMaxDZForProlongation()) {
81e97e0d 588 delete t;
589 continue;
590 }
6c23ffed 591 if (t->Pt()<AliITSReconstructor::GetRecoParam()->GetMinPtForProlongation()) {
81e97e0d 592 delete t;
593 continue;
594 }
e50912db 595 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
81e97e0d 596 delete t;
597 continue;
598 }
e43c066c 599 }
b9671574 600 t->SetReconstructed(kFALSE);
e43c066c 601 itsTracks.AddLast(t);
628e7bb0 602 fOriginal.AddLast(t);
e43c066c 603 }
604 } /* End Read ESD tracks */
605
606 itsTracks.Sort();
628e7bb0 607 fOriginal.Sort();
e43c066c 608 Int_t nentr=itsTracks.GetEntriesFast();
609 fTrackHypothesys.Expand(nentr);
81e97e0d 610 fBestHypothesys.Expand(nentr);
afd25725 611 MakeCoefficients(nentr);
513ab112 612 if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(event->GetNumberOfTracks());
e43c066c 613 Int_t ntrk=0;
afd25725 614 // THE TWO TRACKING PASSES
e43c066c 615 for (fPass=0; fPass<2; fPass++) {
616 Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue;
e50912db 617 for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) {
e50912db 618 AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack);
e43c066c 619 if (t==0) continue; //this track has been already tracked
1c97ce2f 620 //cout<<"========== "<<fPass<<" "<<fCurrentEsdTrack<<" =========\n";
b9671574 621 if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed
791f9a2a 622 Float_t dz[2]; t->GetDZ(GetX(),GetY(),GetZ(),dz); //I.B.
afd25725 623 if (fConstraint[fPass]) {
624 if (TMath::Abs(dz[0])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint() ||
625 TMath::Abs(dz[1])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint()) continue;
626 }
e43c066c 627
628 Int_t tpcLabel=t->GetLabel(); //save the TPC track label
4187a601 629 AliDebug(2,Form("LABEL %d pass %d",tpcLabel,fPass));
e43c066c 630 fI = 6;
631 ResetTrackToFollow(*t);
632 ResetBestTrack();
6518a6c5 633
e50912db 634 FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]);
1c97ce2f 635
e43c066c 636
637 SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change
638 //
ae00569a 639 AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15);
e43c066c 640 if (!besttrack) continue;
641 besttrack->SetLabel(tpcLabel);
642 // besttrack->CookdEdx();
643 CookdEdx(besttrack);
b9671574 644 besttrack->SetFakeRatio(1.);
e43c066c 645 CookLabel(besttrack,0.); //For comparison only
e43c066c 646 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
a4354152 647 t->SetWinner(besttrack);
628e7bb0 648
628e7bb0 649 if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain
650
b9671574 651 t->SetReconstructed(kTRUE);
1c97ce2f 652 ntrk++;
4187a601 653 AliDebug(2,Form("TRACK! (label %d) ncls %d",besttrack->GetLabel(),besttrack->GetNumberOfClusters()));
e43c066c 654 }
655 GetBestHypothesysMIP(itsTracks);
afd25725 656 } // end loop on the two tracking passes
a4354152 657 //
658 if (fFlagFakes) FlagFakes(itsTracks);
659 //
cd90f0a2 660 if(event->GetNumberOfV0s()>0) AliITSV0Finder::UpdateTPCV0(event,this);
661 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::FindV02(event,this);
628e7bb0 662 fAfterV0 = kTRUE;
628e7bb0 663 //
a0b53cc4 664 itsTracks.Clear();
e43c066c 665 //
666 Int_t entries = fTrackHypothesys.GetEntriesFast();
e50912db 667 for (Int_t ientry=0; ientry<entries; ientry++) {
3f4cca6e 668 TObjArray * array =(TObjArray*)fTrackHypothesys.At(ientry);
e43c066c 669 if (array) array->Delete();
670 delete fTrackHypothesys.RemoveAt(ientry);
671 }
672
673 fTrackHypothesys.Delete();
4ffece29 674 entries = fBestHypothesys.GetEntriesFast();
675 for (Int_t ientry=0; ientry<entries; ientry++) {
3f4cca6e 676 TObjArray * array =(TObjArray*)fBestHypothesys.At(ientry);
4ffece29 677 if (array) array->Delete();
678 delete fBestHypothesys.RemoveAt(ientry);
679 }
81e97e0d 680 fBestHypothesys.Delete();
628e7bb0 681 fOriginal.Clear();
afd25725 682 delete [] fCoefficients;
683 fCoefficients=0;
e50912db 684 DeleteTrksMaterialLUT();
685
75a74b11 686 AliInfo(Form("Number of prolonged tracks: %d out of %d ESD tracks",ntrk,noesd));
e50912db 687
688 fTrackingPhase="Default";
628e7bb0 689
e43c066c 690 return 0;
691}
44347160 692//------------------------------------------------------------------------
af885e0f 693Int_t AliITStrackerMI::PropagateBack(AliESDEvent *event) {
e43c066c 694 //--------------------------------------------------------------------
695 // This functions propagates reconstructed ITS tracks back
696 // The clusters must be loaded !
697 //--------------------------------------------------------------------
e50912db 698 fTrackingPhase="PropagateBack";
e43c066c 699 Int_t nentr=event->GetNumberOfTracks();
75a74b11 700 // Info("PropagateBack", "Number of ESD tracks: %d\n", nentr);
e43c066c 701
702 Int_t ntrk=0;
703 for (Int_t i=0; i<nentr; i++) {
704 AliESDtrack *esd=event->GetTrack(i);
705
706 if ((esd->GetStatus()&AliESDtrack::kITSin)==0) continue;
707 if (esd->GetStatus()&AliESDtrack::kITSout) continue;
708
763bdf3e 709 AliITStrackMI *t = new AliITStrackMI(*esd);
710
b9671574 711 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e43c066c 712
713 ResetTrackToFollow(*t);
4fa7f7d1 714
67178f34 715 /*
9a5326b1 716 // propagate to vertex [SR, GSI 17.02.2003]
e43c066c 717 // Start Time measurement [SR, GSI 17.02.2003], corrected by I.Belikov
e50912db 718 if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
719 if (fTrackToFollow.PropagateToVertex(event->GetVertex()))
720 fTrackToFollow.StartTimeIntegral();
721 // from vertex to outside pipe
722 CorrectForPipeMaterial(&fTrackToFollow,"outward");
67178f34 723 }*/
724 // Start time integral and add distance from current position to vertex
725 Double_t xyzTrk[3],xyzVtx[3]={GetX(),GetY(),GetZ()};
726 fTrackToFollow.GetXYZ(xyzTrk);
727 Double_t dst2 = 0.;
728 for (Int_t icoord=0; icoord<3; icoord++) {
729 Double_t di = xyzTrk[icoord] - xyzVtx[icoord];
730 dst2 += di*di;
e43c066c 731 }
67178f34 732 fTrackToFollow.StartTimeIntegral();
733 fTrackToFollow.AddTimeStep(TMath::Sqrt(dst2));
e43c066c 734
6c94f330 735 fTrackToFollow.ResetCovariance(10.); fTrackToFollow.ResetClusters();
e50912db 736 if (RefitAt(AliITSRecoParam::GetrInsideITSscreen(),&fTrackToFollow,t)) {
737 if (!CorrectForTPCtoITSDeadZoneMaterial(&fTrackToFollow)) {
e43c066c 738 delete t;
739 continue;
740 }
741 fTrackToFollow.SetLabel(t->GetLabel());
742 //fTrackToFollow.CookdEdx();
743 CookLabel(&fTrackToFollow,0.); //For comparison only
744 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSout);
745 //UseClusters(&fTrackToFollow);
746 ntrk++;
747 }
748 delete t;
749 }
750
75a74b11 751 AliInfo(Form("Number of back propagated ITS tracks: %d out of %d ESD tracks",ntrk,nentr));
e43c066c 752
e50912db 753 fTrackingPhase="Default";
754
e43c066c 755 return 0;
756}
44347160 757//------------------------------------------------------------------------
af885e0f 758Int_t AliITStrackerMI::RefitInward(AliESDEvent *event) {
e43c066c 759 //--------------------------------------------------------------------
760 // This functions refits ITS tracks using the
761 // "inward propagated" TPC tracks
762 // The clusters must be loaded !
763 //--------------------------------------------------------------------
e50912db 764 fTrackingPhase="RefitInward";
44396017 765
cd90f0a2 766 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::RefitV02(event,this);
44396017 767
794d9013 768 Bool_t doExtra=AliITSReconstructor::GetRecoParam()->GetSearchForExtraClusters();
769 if(!doExtra) AliDebug(2,"Do not search for extra clusters");
770
e43c066c 771 Int_t nentr=event->GetNumberOfTracks();
75a74b11 772 // Info("RefitInward", "Number of ESD tracks: %d\n", nentr);
e43c066c 773
774 Int_t ntrk=0;
775 for (Int_t i=0; i<nentr; i++) {
776 AliESDtrack *esd=event->GetTrack(i);
777
778 if ((esd->GetStatus()&AliESDtrack::kITSout) == 0) continue;
779 if (esd->GetStatus()&AliESDtrack::kITSrefit) continue;
780 if (esd->GetStatus()&AliESDtrack::kTPCout)
781 if ((esd->GetStatus()&AliESDtrack::kTPCrefit)==0) continue;
782
763bdf3e 783 AliITStrackMI *t = new AliITStrackMI(*esd);
784
b9671574 785 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e50912db 786 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
e43c066c 787 delete t;
788 continue;
789 }
790
791 ResetTrackToFollow(*t);
792 fTrackToFollow.ResetClusters();
793
ef3508c5 794 // ITS standalone tracks
795 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) {
6c94f330 796 fTrackToFollow.ResetCovariance(10.);
ef3508c5 797 // protection for loopers that can have parameters screwed up
798 if(TMath::Abs(fTrackToFollow.GetY())>1000. ||
799 TMath::Abs(fTrackToFollow.GetZ())>1000.) {
800 delete t;
801 continue;
802 }
803 }
e43c066c 804
805 //Refitting...
58e8dc31 806 Bool_t pe=(AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
807 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0);
1a64bda6 808
4187a601 809 AliDebug(2,Form("Refit LABEL %d %d",t->GetLabel(),t->GetNumberOfClusters()));
794d9013 810 if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,doExtra,pe)) {
4187a601 811 AliDebug(2," refit OK");
e43c066c 812 fTrackToFollow.SetLabel(t->GetLabel());
813 // fTrackToFollow.CookdEdx();
814 CookdEdx(&fTrackToFollow);
815
816 CookLabel(&fTrackToFollow,0.0); //For comparison only
817
9a5326b1 818 //The beam pipe
e50912db 819 if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
ae00569a 820 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSrefit);
9a5326b1 821 AliESDtrack *esdTrack =fTrackToFollow.GetESDtrack();
ae00569a 822 //printf(" %d\n",esdTrack->GetITSModuleIndex(0));
823 //esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit); //original line
f7a1cc68 824 Double_t r[3]={0.,0.,0.};
9a5326b1 825 Double_t maxD=3.;
826 esdTrack->RelateToVertex(event->GetVertex(),GetBz(r),maxD);
827 ntrk++;
e43c066c 828 }
829 }
830 delete t;
831 }
832
75a74b11 833 AliInfo(Form("Number of refitted tracks: %d out of %d ESD tracks",ntrk,nentr));
e43c066c 834
e50912db 835 fTrackingPhase="Default";
836
e43c066c 837 return 0;
838}
44347160 839//------------------------------------------------------------------------
e43c066c 840AliCluster *AliITStrackerMI::GetCluster(Int_t index) const {
841 //--------------------------------------------------------------------
842 // Return pointer to a given cluster
843 //--------------------------------------------------------------------
844 Int_t l=(index & 0xf0000000) >> 28;
845 Int_t c=(index & 0x0fffffff) >> 00;
846 return fgLayers[l].GetCluster(c);
847}
9a5326b1 848//------------------------------------------------------------------------
df29e9a4 849Bool_t AliITStrackerMI::GetTrackPoint(Int_t index, AliTrackPoint& p) const {
9a5326b1 850 //--------------------------------------------------------------------
df29e9a4 851 // Get track space point with index i
9a5326b1 852 //--------------------------------------------------------------------
60066577 853
78b03929 854 Int_t l=(index & 0xf0000000) >> 28;
855 Int_t c=(index & 0x0fffffff) >> 00;
00a7cc50 856 AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
df29e9a4 857 Int_t idet = cl->GetDetectorIndex();
4e65ff9e 858
60066577 859 Float_t xyz[3];
860 Float_t cov[6];
861 cl->GetGlobalXYZ(xyz);
862 cl->GetGlobalCov(cov);
863 p.SetXYZ(xyz, cov);
be77c8c9 864 p.SetCharge(cl->GetQ());
ebbcf1ea 865 p.SetDriftTime(cl->GetDriftTime());
b7bcc8ed 866 p.SetChargeRatio(cl->GetChargeRatio());
e3901fd8 867 p.SetClusterType(cl->GetClusterType());
ae079791 868 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
df29e9a4 869 switch (l) {
870 case 0:
ae079791 871 iLayer = AliGeomManager::kSPD1;
df29e9a4 872 break;
873 case 1:
ae079791 874 iLayer = AliGeomManager::kSPD2;
df29e9a4 875 break;
876 case 2:
ae079791 877 iLayer = AliGeomManager::kSDD1;
df29e9a4 878 break;
879 case 3:
ae079791 880 iLayer = AliGeomManager::kSDD2;
9a5326b1 881 break;
882 case 4:
883 iLayer = AliGeomManager::kSSD1;
884 break;
885 case 5:
886 iLayer = AliGeomManager::kSSD2;
887 break;
888 default:
889 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
890 break;
891 };
892 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
893 p.SetVolumeID((UShort_t)volid);
894 return kTRUE;
895}
896//------------------------------------------------------------------------
897Bool_t AliITStrackerMI::GetTrackPointTrackingError(Int_t index,
898 AliTrackPoint& p, const AliESDtrack *t) {
899 //--------------------------------------------------------------------
900 // Get track space point with index i
901 // (assign error estimated during the tracking)
902 //--------------------------------------------------------------------
903
904 Int_t l=(index & 0xf0000000) >> 28;
905 Int_t c=(index & 0x0fffffff) >> 00;
906 const AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
907 Int_t idet = cl->GetDetectorIndex();
4187a601 908
9a5326b1 909 const AliITSdetector &det=fgLayers[l].GetDetector(idet);
910
911 // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
912 Float_t detxy[2];
913 detxy[0] = det.GetR()*TMath::Cos(det.GetPhi());
914 detxy[1] = det.GetR()*TMath::Sin(det.GetPhi());
915 Double_t alpha = t->GetAlpha();
916 Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha);
242bd643 917 Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe+cl->GetX(),GetBz()));
9a5326b1 918 phi += alpha-det.GetPhi();
919 Float_t tgphi = TMath::Tan(phi);
920
921 Float_t tgl = t->GetTgl(); // tgl about const along track
922 Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.);
923
d9ead1a0 924 Float_t errtrky,errtrkz,covyz;
8c139cf3 925 Bool_t addMisalErr=kFALSE;
d9ead1a0 926 AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errtrky,errtrkz,covyz,addMisalErr);
9a5326b1 927
928 Float_t xyz[3];
929 Float_t cov[6];
930 cl->GetGlobalXYZ(xyz);
931 // cl->GetGlobalCov(cov);
932 Float_t pos[3] = {0.,0.,0.};
d9ead1a0 933 AliCluster tmpcl((UShort_t)cl->GetVolumeId(),pos[0],pos[1],pos[2],errtrky*errtrky,errtrkz*errtrkz,covyz);
9a5326b1 934 tmpcl.GetGlobalCov(cov);
935
936 p.SetXYZ(xyz, cov);
be77c8c9 937 p.SetCharge(cl->GetQ());
ebbcf1ea 938 p.SetDriftTime(cl->GetDriftTime());
b7bcc8ed 939 p.SetChargeRatio(cl->GetChargeRatio());
e3901fd8 940 p.SetClusterType(cl->GetClusterType());
9a5326b1 941
942 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
943 switch (l) {
944 case 0:
945 iLayer = AliGeomManager::kSPD1;
946 break;
947 case 1:
948 iLayer = AliGeomManager::kSPD2;
949 break;
950 case 2:
951 iLayer = AliGeomManager::kSDD1;
952 break;
953 case 3:
954 iLayer = AliGeomManager::kSDD2;
df29e9a4 955 break;
956 case 4:
ae079791 957 iLayer = AliGeomManager::kSSD1;
df29e9a4 958 break;
959 case 5:
ae079791 960 iLayer = AliGeomManager::kSSD2;
df29e9a4 961 break;
962 default:
963 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
964 break;
965 };
ae079791 966 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
4187a601 967
df29e9a4 968 p.SetVolumeID((UShort_t)volid);
969 return kTRUE;
970}
44347160 971//------------------------------------------------------------------------
81e97e0d 972void AliITStrackerMI::FollowProlongationTree(AliITStrackMI * otrack, Int_t esdindex, Bool_t constrain)
e43c066c 973{
974 //--------------------------------------------------------------------
975 // Follow prolongation tree
976 //--------------------------------------------------------------------
81e97e0d 977 //
afd25725 978 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
979 Double_t ersVtx[]={GetSigmaX(),GetSigmaY(),GetSigmaZ()};
980
2755f080 981
b9671574 982 AliESDtrack * esd = otrack->GetESDtrack();
afd25725 983 if (esd->GetV0Index(0)>0) {
81e97e0d 984 // TEMPORARY SOLLUTION: map V0 indexes to point to proper track
afd25725 985 // mapping of ESD track is different as ITS track in Containers
81e97e0d 986 // Need something more stable
44347160 987 // Indexes are set back again to the ESD track indexes in UpdateTPCV0
81e97e0d 988 for (Int_t i=0;i<3;i++){
989 Int_t index = esd->GetV0Index(i);
990 if (index==0) break;
d6a49f20 991 AliESDv0 * vertex = fEsd->GetV0(index);
81e97e0d 992 if (vertex->GetStatus()<0) continue; // rejected V0
993 //
afd25725 994 if (esd->GetSign()>0) {
995 vertex->SetIndex(0,esdindex);
996 } else {
997 vertex->SetIndex(1,esdindex);
998 }
81e97e0d 999 }
1000 }
1001 TObjArray *bestarray = (TObjArray*)fBestHypothesys.At(esdindex);
1002 if (!bestarray){
1003 bestarray = new TObjArray(5);
4ffece29 1004 bestarray->SetOwner();
81e97e0d 1005 fBestHypothesys.AddAt(bestarray,esdindex);
1006 }
e43c066c 1007
81e97e0d 1008 //
e43c066c 1009 //setup tree of the prolongations
1010 //
a4354152 1011 const int kMaxTr = 100; //RS
1012 static AliITStrackMI tracks[7][kMaxTr];
15dd636f 1013 AliITStrackMI *currenttrack;
1014 static AliITStrackMI currenttrack1;
1015 static AliITStrackMI currenttrack2;
1016 static AliITStrackMI backuptrack;
e43c066c 1017 Int_t ntracks[7];
a4354152 1018 Int_t nindexes[7][kMaxTr];
1019 Float_t normalizedchi2[kMaxTr];
e43c066c 1020 for (Int_t ilayer=0;ilayer<6;ilayer++) ntracks[ilayer]=0;
b9671574 1021 otrack->SetNSkipped(0);
15dd636f 1022 new (&(tracks[6][0])) AliITStrackMI(*otrack);
e43c066c 1023 ntracks[6]=1;
81e97e0d 1024 for (Int_t i=0;i<7;i++) nindexes[i][0]=0;
ae00569a 1025 Int_t modstatus = 1; // found
1026 Float_t xloc,zloc;
e43c066c 1027 //
1028 //
1029 // follow prolongations
e50912db 1030 for (Int_t ilayer=5; ilayer>=0; ilayer--) {
4187a601 1031 AliDebug(2,Form("FollowProlongationTree: layer %d",ilayer));
2755f080 1032 fI = ilayer;
e43c066c 1033 //
2755f080 1034 AliITSlayer &layer=fgLayers[ilayer];
1035 Double_t r = layer.GetR();
e43c066c 1036 ntracks[ilayer]=0;
1037 //
1038 //
2755f080 1039 Int_t nskipped=0;
e43c066c 1040 Float_t nused =0;
e50912db 1041 for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) {
a4354152 1042 // printf("LR %d Tr:%d NSeeds: %d\n",ilayer,itrack,ntracks[ilayer+1]);
e43c066c 1043 //set current track
a4354152 1044 if (ntracks[ilayer]>=kMaxTr) break;
b9671574 1045 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0) nskipped++;
1046 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2.) nused++;
e43c066c 1047 if (ntracks[ilayer]>15+ilayer){
b9671574 1048 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0 && nskipped>4+ilayer) continue;
1049 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2. && nused>3) continue;
e43c066c 1050 }
1051
15dd636f 1052 new(&currenttrack1) AliITStrackMI(tracks[ilayer+1][nindexes[ilayer+1][itrack]]);
44347160 1053
afd25725 1054 // material between SSD and SDD, SDD and SPD
e50912db 1055 if (ilayer==3)
1056 if(!CorrectForShieldMaterial(&currenttrack1,"SDD","inward")) continue;
1057 if (ilayer==1)
1058 if(!CorrectForShieldMaterial(&currenttrack1,"SPD","inward")) continue;
8602c008 1059
2755f080 1060 // detector number
8602c008 1061 Double_t phi,z;
1062 if (!currenttrack1.GetPhiZat(r,phi,z)) continue;
e43c066c 1063 Int_t idet=layer.FindDetectorIndex(phi,z);
e50912db 1064
1065 Double_t trackGlobXYZ1[3];
d1181f10 1066 if (!currenttrack1.GetXYZ(trackGlobXYZ1)) continue;
e50912db 1067
2755f080 1068 // Get the budget to the primary vertex for the current track being prolonged
a4354152 1069 Double_t budgetToPrimVertex = 0;
1070 double xMSLrs[9],x2X0MSLrs[9]; // needed for ImproveKalman
1071 int nMSLrs = 0;
1072 //
1073 if (fUseImproveKalman) nMSLrs = GetEffectiveThicknessLbyL(xMSLrs,x2X0MSLrs);
1074 else budgetToPrimVertex = GetEffectiveThickness();
1075 //
2755f080 1076 // check if we allow a prolongation without point
6518a6c5 1077 Int_t skip = CheckSkipLayer(&currenttrack1,ilayer,idet);
2755f080 1078 if (skip) {
1079 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
6518a6c5 1080 // propagate to the layer radius
d1181f10 1081 Double_t xToGo; if (!vtrack->GetLocalXat(r,xToGo)) continue;
9be1d1c7 1082 if(!vtrack->Propagate(xToGo)) continue;
2755f080 1083 // apply correction for material of the current layer
1084 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
1085 vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1);
f8720bda 1086 vtrack->SetDeadZoneProbability(ilayer,1.); // no penalty for missing cluster
9fd412a8 1087 vtrack->SetClIndex(ilayer,-1);
ae00569a 1088 modstatus = (skip==1 ? 3 : 4); // skipped : out in z
d1181f10 1089 if(LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc)) { // local module coords
1090 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
1091 }
a4354152 1092 if(constrain && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1093 fUseImproveKalman ?
1094 vtrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1095 vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1096 }
2755f080 1097 ntracks[ilayer]++;
6518a6c5 1098 continue;
2755f080 1099 }
1100
1101 // track outside layer acceptance in z
1102 if (idet<0) continue;
1103
1104 //propagate to the intersection with the detector plane
1105 const AliITSdetector &det=layer.GetDetector(idet);
1106 new(&currenttrack2) AliITStrackMI(currenttrack1);
44347160 1107 if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
d1181f10 1108 if (!currenttrack2.Propagate(det.GetPhi(),det.GetR())) continue;
e43c066c 1109 currenttrack1.SetDetectorIndex(idet);
1110 currenttrack2.SetDetectorIndex(idet);
d1181f10 1111 if(!LocalModuleCoord(ilayer,idet,&currenttrack1,xloc,zloc)) continue; // local module coords
6518a6c5 1112
afd25725 1113 //***************
1c97ce2f 1114 // DEFINITION OF SEARCH ROAD AND CLUSTERS SELECTION
e43c066c 1115 //
2755f080 1116 // road in global (rphi,z) [i.e. in tracking ref. system]
1c97ce2f 1117 Double_t zmin,zmax,ymin,ymax;
1118 if (!ComputeRoad(&currenttrack1,ilayer,idet,zmin,zmax,ymin,ymax)) continue;
2755f080 1119
afd25725 1120 // select clusters in road
e43c066c 1121 layer.SelectClusters(zmin,zmax,ymin,ymax);
afd25725 1122 //********************
44347160 1123
afd25725 1124 // Define criteria for track-cluster association
44347160 1125 Double_t msz = currenttrack1.GetSigmaZ2() +
1126 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1127 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1128 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
1129 Double_t msy = currenttrack1.GetSigmaY2() +
1130 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1131 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1132 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
1133 if (constrain) {
1134 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
1135 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
1136 } else {
1137 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
1138 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
1139 }
1140 msz = 1./msz; // 1/RoadZ^2
1141 msy = 1./msy; // 1/RoadY^2
1c97ce2f 1142
e43c066c 1143 //
e43c066c 1144 //
afd25725 1145 // LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER
e43c066c 1146 //
afd25725 1147 const AliITSRecPoint *cl=0;
1148 Int_t clidx=-1;
1149 Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value
6518a6c5 1150 Bool_t deadzoneSPD=kFALSE;
e43c066c 1151 currenttrack = &currenttrack1;
6518a6c5 1152
ae00569a 1153 // check if the road contains a dead zone
23197852 1154 Bool_t noClusters = kFALSE;
1155 if (!layer.GetNextCluster(clidx,kTRUE)) noClusters=kTRUE;
4187a601 1156 if (noClusters) AliDebug(2,"no clusters in road");
1c97ce2f 1157 Double_t dz=0.5*(zmax-zmin);
1158 Double_t dy=0.5*(ymax-ymin);
1159 Int_t dead = CheckDeadZone(&currenttrack1,ilayer,idet,dz,dy,noClusters);
4187a601 1160 if(dead) AliDebug(2,Form("DEAD (%d)\n",dead));
ae00569a 1161 // create a prolongation without clusters (check also if there are no clusters in the road)
1162 if (dead ||
23197852 1163 (noClusters &&
ae00569a 1164 AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) {
6518a6c5 1165 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
9fd412a8 1166 updatetrack->SetClIndex(ilayer,-1);
ae00569a 1167 if (dead==0) {
1168 modstatus = 5; // no cls in road
1169 } else if (dead==1) {
1170 modstatus = 7; // holes in z in SPD
f8720bda 1171 } else if (dead==2 || dead==3 || dead==4) {
ae00569a 1172 modstatus = 2; // dead from OCDB
1173 }
1174 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
6518a6c5 1175 // apply correction for material of the current layer
1176 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1177 if (constrain) { // apply vertex constrain
1178 updatetrack->SetConstrain(constrain);
1179 Bool_t isPrim = kTRUE;
1180 if (ilayer<4) { // check that it's close to the vertex
1181 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
1182 if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
1183 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
1184 TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
1185 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
1186 }
a4354152 1187 if (isPrim && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1188 fUseImproveKalman ?
1189 updatetrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1190 updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1191 }
6518a6c5 1192 }
f8720bda 1193 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
ae00569a 1194 if (dead) {
ae00569a 1195 if (dead==1) { // dead zone at z=0,+-7cm in SPD
f8720bda 1196 updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
ae00569a 1197 deadzoneSPD=kTRUE;
f8720bda 1198 } else if (dead==2 || dead==3) { // dead module or chip from OCDB
1199 updatetrack->SetDeadZoneProbability(ilayer,1.);
1200 } else if (dead==4) { // at least a single dead channel from OCDB
1201 updatetrack->SetDeadZoneProbability(ilayer,0.);
1202 }
6518a6c5 1203 }
1204 ntracks[ilayer]++;
1205 }
1206
ae00569a 1207 clidx=-1;
6518a6c5 1208 // loop over clusters in the road
afd25725 1209 while ((cl=layer.GetNextCluster(clidx))!=0) {
a4354152 1210 if (ntracks[ilayer]>int(0.95*kMaxTr)) break; //space for skipped clusters
afd25725 1211 Bool_t changedet =kFALSE;
88e3c173 1212 if (TMath::Abs(cl->GetQ())<1.e-13 && deadzoneSPD==kTRUE) continue;
a5d0fae6 1213 Int_t idetc=cl->GetDetectorIndex();
afd25725 1214
a5d0fae6 1215 if (currenttrack->GetDetectorIndex()==idetc) { // track already on the cluster's detector
1c97ce2f 1216 // take into account misalignment (bring track to real detector plane)
1217 Double_t xTrOrig = currenttrack->GetX();
9be1d1c7 1218 if (!currenttrack->Propagate(xTrOrig+cl->GetX())) continue;
afd25725 1219 // a first cut on track-cluster distance
1220 if ( (currenttrack->GetZ()-cl->GetZ())*(currenttrack->GetZ()-cl->GetZ())*msz +
1221 (currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. )
1c97ce2f 1222 { // cluster not associated to track
4187a601 1223 AliDebug(2,"not associated");
421c4ba7 1224 // MvL: added here as well
1225 // bring track back to ideal detector plane
1226 currenttrack->Propagate(xTrOrig);
1c97ce2f 1227 continue;
1228 }
1229 // bring track back to ideal detector plane
9be1d1c7 1230 if (!currenttrack->Propagate(xTrOrig)) continue;
afd25725 1231 } else { // have to move track to cluster's detector
a5d0fae6 1232 const AliITSdetector &detc=layer.GetDetector(idetc);
afd25725 1233 // a first cut on track-cluster distance
a5d0fae6 1234 Double_t y;
1c97ce2f 1235 if (!currenttrack2.GetProlongationFast(detc.GetPhi(),detc.GetR()+cl->GetX(),y,z)) continue;
afd25725 1236 if ( (z-cl->GetZ())*(z-cl->GetZ())*msz +
1237 (y-cl->GetY())*(y-cl->GetY())*msy > 1. )
44347160 1238 continue; // cluster not associated to track
e43c066c 1239 //
15dd636f 1240 new (&backuptrack) AliITStrackMI(currenttrack2);
afd25725 1241 changedet = kTRUE;
e43c066c 1242 currenttrack =&currenttrack2;
a5d0fae6 1243 if (!currenttrack->Propagate(detc.GetPhi(),detc.GetR())) {
15dd636f 1244 new (currenttrack) AliITStrackMI(backuptrack);
afd25725 1245 changedet = kFALSE;
e43c066c 1246 continue;
1247 }
a5d0fae6 1248 currenttrack->SetDetectorIndex(idetc);
e50912db 1249 // Get again the budget to the primary vertex
1250 // for the current track being prolonged, if had to change detector
1251 //budgetToPrimVertex = GetEffectiveThickness();// not needed at the moment because anyway we take a mean material for this correction
e43c066c 1252 }
1253
afd25725 1254 // calculate track-clusters chi2
1255 chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer);
1256 // chi2 cut
4187a601 1257 AliDebug(2,Form("chi2 %f max %f",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)));
afd25725 1258 if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
88e3c173 1259 if (TMath::Abs(cl->GetQ())<1.e-13) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
a4354152 1260 if (ntracks[ilayer]>=kMaxTr) continue;
15dd636f 1261 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
9fd412a8 1262 updatetrack->SetClIndex(ilayer,-1);
afd25725 1263 if (changedet) new (&currenttrack2) AliITStrackMI(backuptrack);
ae00569a 1264
88e3c173 1265 if (TMath::Abs(cl->GetQ())>1.e-13) { // real cluster
1c97ce2f 1266 if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) {
4187a601 1267 AliDebug(2,"update failed");
1c97ce2f 1268 continue;
1269 }
09cf9d66 1270 updatetrack->SetSampledEdx(cl->GetQ(),ilayer-2);
ae00569a 1271 modstatus = 1; // found
6518a6c5 1272 } else { // virtual cluster in dead zone
b9671574 1273 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
f8720bda 1274 updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
ae00569a 1275 modstatus = 7; // holes in z in SPD
1276 }
1277
1278 if (changedet) {
1279 Float_t xlocnewdet,zlocnewdet;
d1181f10 1280 if(LocalModuleCoord(ilayer,idet,updatetrack,xlocnewdet,zlocnewdet)) { // local module coords
1281 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xlocnewdet,zlocnewdet);
1282 }
ae00569a 1283 } else {
1284 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
e43c066c 1285 }
afd25725 1286 if (cl->IsUsed()) updatetrack->IncrementNUsed();
1287
1288 // apply correction for material of the current layer
e50912db 1289 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1290
afd25725 1291 if (constrain) { // apply vertex constrain
b9671574 1292 updatetrack->SetConstrain(constrain);
e43c066c 1293 Bool_t isPrim = kTRUE;
afd25725 1294 if (ilayer<4) { // check that it's close to the vertex
b9671574 1295 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
afd25725 1296 if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
1297 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
1298 TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
1299 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
e43c066c 1300 }
a4354152 1301 if (isPrim && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1302 fUseImproveKalman ?
1303 updatetrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1304 updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1305 }
e43c066c 1306 } //apply vertex constrain
1307 ntracks[ilayer]++;
afd25725 1308 } // create new hypothesis
4187a601 1309 else {
1310 AliDebug(2,"chi2 too large");
1311 }
1312
2755f080 1313 } // loop over possible prolongations
1314
1315 // allow one prolongation without clusters
a4354152 1316 if (constrain && itrack<=1 && TMath::Abs(currenttrack1.GetNSkipped())<1.e-13 && deadzoneSPD==kFALSE && ntracks[ilayer]<kMaxTr) {
15dd636f 1317 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
2755f080 1318 // apply correction for material of the current layer
1319 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
9fd412a8 1320 vtrack->SetClIndex(ilayer,-1);
ae00569a 1321 modstatus = 3; // skipped
1322 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
a4354152 1323 if(AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
1324 fUseImproveKalman ?
1325 vtrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
1326 vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1327 }
b9671574 1328 vtrack->IncrementNSkipped();
e43c066c 1329 ntracks[ilayer]++;
1330 }
1331
6262dd3d 1332
e50912db 1333 } // loop over tracks in layer ilayer+1
afd25725 1334
1335 //loop over track candidates for the current layer
e43c066c 1336 //
1337 //
1338 Int_t accepted=0;
1339
afd25725 1340 Int_t golden=0;
e43c066c 1341 for (Int_t itrack=0;itrack<ntracks[ilayer];itrack++){
1342 normalizedchi2[itrack] = NormalizedChi2(&tracks[ilayer][itrack],ilayer);
afd25725 1343 if (normalizedchi2[itrack] <
1344 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2ForGolden(ilayer)) golden++;
44347160 1345 if (ilayer>4) {
1346 accepted++;
1347 } else {
1348 if (constrain) { // constrain
afd25725 1349 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2C(ilayer)+1)
1350 accepted++;
44347160 1351 } else { // !constrain
afd25725 1352 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonC(ilayer)+1)
1353 accepted++;
44347160 1354 }
e43c066c 1355 }
1356 }
afd25725 1357 // sort tracks by increasing normalized chi2
1358 TMath::Sort(ntracks[ilayer],normalizedchi2,nindexes[ilayer],kFALSE);
e43c066c 1359 ntracks[ilayer] = TMath::Min(accepted,7+2*ilayer);
afd25725 1360 if (ntracks[ilayer]<golden+2+ilayer) ntracks[ilayer]=TMath::Min(golden+2+ilayer,accepted);
a4354152 1361 // if (ntracks[ilayer]>90) ntracks[ilayer]=90;
04315dad 1362 if (ntracks[ilayer]>int(kMaxTr*0.9)) ntracks[ilayer]=int(kMaxTr*0.9);
afd25725 1363 } // end loop over layers
1364
afd25725 1365
1366 //
1367 // Now select tracks to be kept
1368 //
44347160 1369 Int_t max = constrain ? 20 : 5;
e43c066c 1370
afd25725 1371 // tracks that reach layer 0 (SPD inner)
44347160 1372 for (Int_t i=0; i<TMath::Min(max,ntracks[0]); i++) {
15dd636f 1373 AliITStrackMI & track= tracks[0][nindexes[0][i]];
628e7bb0 1374 if (track.GetNumberOfClusters()<2) continue;
afd25725 1375 if (!constrain && track.GetNormChi2(0) >
6518a6c5 1376 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) {
1377 continue;
1378 }
15dd636f 1379 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1380 }
afd25725 1381
1382 // tracks that reach layer 1 (SPD outer)
628e7bb0 1383 for (Int_t i=0;i<TMath::Min(2,ntracks[1]);i++) {
15dd636f 1384 AliITStrackMI & track= tracks[1][nindexes[1][i]];
e43c066c 1385 if (track.GetNumberOfClusters()<4) continue;
afd25725 1386 if (!constrain && track.GetNormChi2(1) >
1387 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
b9671574 1388 if (constrain) track.IncrementNSkipped();
81e97e0d 1389 if (!constrain) {
b9671574 1390 track.SetD(0,track.GetD(GetX(),GetY()));
afd25725 1391 track.SetNSkipped(track.GetNSkipped()+4./(4.+8.*TMath::Abs(track.GetD(0))));
b9671574 1392 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1393 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1394 }
1395 }
15dd636f 1396 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1397 }
afd25725 1398
6518a6c5 1399 // tracks that reach layer 2 (SDD inner), only during non-constrained pass
81e97e0d 1400 if (!constrain){
628e7bb0 1401 for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) {
15dd636f 1402 AliITStrackMI & track= tracks[2][nindexes[2][i]];
628e7bb0 1403 if (track.GetNumberOfClusters()<3) continue;
9cd19c63 1404 if (track.GetNormChi2(2) >
afd25725 1405 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
9cd19c63 1406 track.SetD(0,track.GetD(GetX(),GetY()));
1407 track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0))));
1408 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1409 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1410 }
15dd636f 1411 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1412 }
1413 }
81e97e0d 1414
afd25725 1415 if (!constrain) {
81e97e0d 1416 //
afd25725 1417 // register best track of each layer - important for V0 finder
81e97e0d 1418 //
1419 for (Int_t ilayer=0;ilayer<5;ilayer++){
1420 if (ntracks[ilayer]==0) continue;
1421 AliITStrackMI & track= tracks[ilayer][nindexes[ilayer][0]];
1422 if (track.GetNumberOfClusters()<1) continue;
1423 CookLabel(&track,0);
1424 bestarray->AddAt(new AliITStrackMI(track),ilayer);
1425 }
1426 }
1427 //
1428 // update TPC V0 information
1429 //
b9671574 1430 if (otrack->GetESDtrack()->GetV0Index(0)>0){
81e97e0d 1431 Float_t fprimvertex[3]={GetX(),GetY(),GetZ()};
1432 for (Int_t i=0;i<3;i++){
b9671574 1433 Int_t index = otrack->GetESDtrack()->GetV0Index(i);
81e97e0d 1434 if (index==0) break;
44347160 1435 AliV0 *vertex = (AliV0*)fEsd->GetV0(index);
81e97e0d 1436 if (vertex->GetStatus()<0) continue; // rejected V0
1437 //
6c94f330 1438 if (otrack->GetSign()>0) {
81e97e0d 1439 vertex->SetIndex(0,esdindex);
1440 }
1441 else{
1442 vertex->SetIndex(1,esdindex);
1443 }
1444 //find nearest layer with track info
b75d63a7 1445 Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B.
1446 Int_t nearestold = GetNearestLayer(xrp); //I.B.
81e97e0d 1447 Int_t nearest = nearestold;
9cd19c63 1448 for (Int_t ilayer =nearest;ilayer<7;ilayer++){
81e97e0d 1449 if (ntracks[nearest]==0){
1450 nearest = ilayer;
1451 }
1452 }
1453 //
1454 AliITStrackMI & track= tracks[nearest][nindexes[nearest][0]];
1455 if (nearestold<5&&nearest<5){
b9671574 1456 Bool_t accept = track.GetNormChi2(nearest)<10;
81e97e0d 1457 if (accept){
6c94f330 1458 if (track.GetSign()>0) {
b75d63a7 1459 vertex->SetParamP(track);
81e97e0d 1460 vertex->Update(fprimvertex);
44347160 1461 //vertex->SetIndex(0,track.fESDtrack->GetID());
81e97e0d 1462 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1463 }else{
b75d63a7 1464 vertex->SetParamN(track);
81e97e0d 1465 vertex->Update(fprimvertex);
1466 //vertex->SetIndex(1,track.fESDtrack->GetID());
1467 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1468 }
1469 vertex->SetStatus(vertex->GetStatus()+1);
1470 }else{
44347160 1471 //vertex->SetStatus(-2); // reject V0 - not enough clusters
81e97e0d 1472 }
1473 }
81e97e0d 1474 }
afd25725 1475 }
1476
e43c066c 1477}
44347160 1478//------------------------------------------------------------------------
e43c066c 1479AliITStrackerMI::AliITSlayer & AliITStrackerMI::GetLayer(Int_t layer) const
1480{
1481 //--------------------------------------------------------------------
1482 //
1483 //
1484 return fgLayers[layer];
1485}
44347160 1486//------------------------------------------------------------------------
8221b41b 1487AliITStrackerMI::AliITSlayer::AliITSlayer():
1488fR(0),
1489fPhiOffset(0),
1490fNladders(0),
1491fZOffset(0),
1492fNdetectors(0),
1493fDetectors(0),
1494fN(0),
1495fDy5(0),
1496fDy10(0),
1497fDy20(0),
1498fClustersCs(0),
1499fClusterIndexCs(0),
1500fYcs(0),
1501fZcs(0),
1502fNcs(0),
1503fCurrentSlice(-1),
d9ead1a0 1504fZmin(0),
8221b41b 1505fZmax(0),
1506fYmin(0),
1507fYmax(0),
1508fI(0),
1509fImax(0),
1510fSkip(0),
1511fAccepted(0),
d9ead1a0 1512fRoad(0),
1513fMaxSigmaClY(0),
1514fMaxSigmaClZ(0),
1515fNMaxSigmaCl(3)
1516{
e43c066c 1517 //--------------------------------------------------------------------
1518 //default AliITSlayer constructor
1519 //--------------------------------------------------------------------
e50912db 1520 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1521 fClusterWeight[i]=0;
1522 fClusterTracks[0][i]=-1;
1523 fClusterTracks[1][i]=-1;
1524 fClusterTracks[2][i]=-1;
9cd19c63 1525 fClusterTracks[3][i]=-1;
1526 fY[i]=0;
1527 fZ[i]=0;
1528 }
1529 fYB[0]=0;
1530 fYB[1]=0;
1531
1532 for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer5; j++) {
1533 for (Int_t j1=0; j1<6; j1++) {
1534 fClusters5[j1][j]=0;
1535 fClusterIndex5[j1][j]=-1;
1536 fY5[j1][j]=0;
1537 fZ5[j1][j]=0;
1538 fN5[j1]=0;
1539 fBy5[j1][0]=0;
1540 fBy5[j1][1]=0;
1541 }
1542 }
1543
1544 for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer10; j++) {
1545 for (Int_t j1=0; j1<11; j1++) {
1546 fClusters10[j1][j]=0;
1547 fClusterIndex10[j1][j]=-1;
1548 fY10[j1][j]=0;
1549 fZ10[j1][j]=0;
1550 fN10[j1]=0;
1551 fBy10[j1][0]=0;
1552 fBy10[j1][1]=0;
1553 }
e43c066c 1554 }
9cd19c63 1555
1556 for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer20; j++) {
1557 for (Int_t j1=0; j1<21; j1++) {
1558 fClusters20[j1][j]=0;
1559 fClusterIndex20[j1][j]=-1;
1560 fY20[j1][j]=0;
1561 fZ20[j1][j]=0;
1562 fN20[j1]=0;
1563 fBy20[j1][0]=0;
1564 fBy20[j1][1]=0;
1565 }
1566 }
e8c2bf0d 1567 for(Int_t i=0;i<AliITSRecoParam::fgkMaxClusterPerLayer;i++){
1568 fClusters[i]=NULL;
1569 fClusterIndex[i]=0;
1570 }
e43c066c 1571}
44347160 1572//------------------------------------------------------------------------
e43c066c 1573AliITStrackerMI::AliITSlayer::
8221b41b 1574AliITSlayer(Double_t r,Double_t p,Double_t z,Int_t nl,Int_t nd):
1575fR(r),
1576fPhiOffset(p),
1577fNladders(nl),
1578fZOffset(z),
1579fNdetectors(nd),
1580fDetectors(0),
1581fN(0),
1582fDy5(0),
1583fDy10(0),
1584fDy20(0),
1585fClustersCs(0),
1586fClusterIndexCs(0),
1587fYcs(0),
1588fZcs(0),
1589fNcs(0),
1590fCurrentSlice(-1),
d9ead1a0 1591fZmin(0),
8221b41b 1592fZmax(0),
1593fYmin(0),
1594fYmax(0),
1595fI(0),
1596fImax(0),
1597fSkip(0),
1598fAccepted(0),
d9ead1a0 1599fRoad(0),
1600fMaxSigmaClY(0),
1601fMaxSigmaClZ(0),
1602fNMaxSigmaCl(3) {
e43c066c 1603 //--------------------------------------------------------------------
1604 //main AliITSlayer constructor
1605 //--------------------------------------------------------------------
e43c066c 1606 fDetectors=new AliITSdetector[fNladders*fNdetectors];
afd25725 1607 fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster
9cd19c63 1608
1609 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
1610 fClusterWeight[i]=0;
1611 fClusterTracks[0][i]=-1;
1612 fClusterTracks[1][i]=-1;
1613 fClusterTracks[2][i]=-1;
1614 fClusterTracks[3][i]=-1;
1615 fY[i]=0;
1616 fZ[i]=0;
1617 }
1618
1619 fYB[0]=0;
1620 fYB[1]=0;
1621
1622 for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer5; j++) {
1623 for (Int_t j1=0; j1<6; j1++) {
1624 fClusters5[j1][j]=0;
1625 fClusterIndex5[j1][j]=-1;
1626 fY5[j1][j]=0;
1627 fZ5[j1][j]=0;
1628 fN5[j1]=0;
1629 fBy5[j1][0]=0;
1630 fBy5[j1][1]=0;
1631 }
1632 }
1633
1634 for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer10; j++) {
1635 for (Int_t j1=0; j1<11; j1++) {
1636 fClusters10[j1][j]=0;
1637 fClusterIndex10[j1][j]=-1;
1638 fY10[j1][j]=0;
1639 fZ10[j1][j]=0;
1640 fN10[j1]=0;
1641 fBy10[j1][0]=0;
1642 fBy10[j1][1]=0;
1643 }
1644 }
1645
1646 for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer20; j++) {
1647 for (Int_t j1=0; j1<21; j1++) {
1648 fClusters20[j1][j]=0;
1649 fClusterIndex20[j1][j]=-1;
1650 fY20[j1][j]=0;
1651 fZ20[j1][j]=0;
1652 fN20[j1]=0;
1653 fBy20[j1][0]=0;
1654 fBy20[j1][1]=0;
1655 }
1656 }
e8c2bf0d 1657 for(Int_t i=0;i<AliITSRecoParam::fgkMaxClusterPerLayer;i++){
1658 fClusters[i]=NULL;
1659 fClusterIndex[i]=0;
1660 }
e43c066c 1661}
225cff59 1662/*
44347160 1663//------------------------------------------------------------------------
8221b41b 1664AliITStrackerMI::AliITSlayer::AliITSlayer(const AliITSlayer& layer):
1665fR(layer.fR),
1666fPhiOffset(layer.fPhiOffset),
1667fNladders(layer.fNladders),
1668fZOffset(layer.fZOffset),
1669fNdetectors(layer.fNdetectors),
1670fDetectors(layer.fDetectors),
1671fN(layer.fN),
1672fDy5(layer.fDy5),
1673fDy10(layer.fDy10),
1674fDy20(layer.fDy20),
1675fClustersCs(layer.fClustersCs),
1676fClusterIndexCs(layer.fClusterIndexCs),
1677fYcs(layer.fYcs),
1678fZcs(layer.fZcs),
1679fNcs(layer.fNcs),
1680fCurrentSlice(layer.fCurrentSlice),
d9ead1a0 1681fZmin(layer.fZmin),
8221b41b 1682fZmax(layer.fZmax),
1683fYmin(layer.fYmin),
1684fYmax(layer.fYmax),
1685fI(layer.fI),
1686fImax(layer.fImax),
1687fSkip(layer.fSkip),
1688fAccepted(layer.fAccepted),
d9ead1a0 1689fRoad(layer.fRoad),
1690fMaxSigmaClY(layer.fMaxSigmaClY),
1691fMaxSigmaClZ(layer.fMaxSigmaClZ),
1692fNMaxSigmaCl(layer.fNMaxSigmaCl)
1693{
8221b41b 1694 //Copy constructor
1695}
225cff59 1696*/
44347160 1697//------------------------------------------------------------------------
e43c066c 1698AliITStrackerMI::AliITSlayer::~AliITSlayer() {
1699 //--------------------------------------------------------------------
1700 // AliITSlayer destructor
1701 //--------------------------------------------------------------------
23197852 1702 delete [] fDetectors;
e43c066c 1703 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1704 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1705 fClusterWeight[i]=0;
1706 fClusterTracks[0][i]=-1;
1707 fClusterTracks[1][i]=-1;
1708 fClusterTracks[2][i]=-1;
1709 fClusterTracks[3][i]=-1;
1710 }
1711}
44347160 1712//------------------------------------------------------------------------
e43c066c 1713void AliITStrackerMI::AliITSlayer::ResetClusters() {
1714 //--------------------------------------------------------------------
1715 // This function removes loaded clusters
1716 //--------------------------------------------------------------------
1717 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1718 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++){
e43c066c 1719 fClusterWeight[i]=0;
1720 fClusterTracks[0][i]=-1;
1721 fClusterTracks[1][i]=-1;
1722 fClusterTracks[2][i]=-1;
1723 fClusterTracks[3][i]=-1;
1724 }
1725
1726 fN=0;
1727 fI=0;
1728}
44347160 1729//------------------------------------------------------------------------
e43c066c 1730void AliITStrackerMI::AliITSlayer::ResetWeights() {
1731 //--------------------------------------------------------------------
1732 // This function reset weights of the clusters
1733 //--------------------------------------------------------------------
e50912db 1734 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1735 fClusterWeight[i]=0;
1736 fClusterTracks[0][i]=-1;
1737 fClusterTracks[1][i]=-1;
1738 fClusterTracks[2][i]=-1;
1739 fClusterTracks[3][i]=-1;
1740 }
1741 for (Int_t i=0; i<fN;i++) {
00a7cc50 1742 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster(i);
e43c066c 1743 if (cl&&cl->IsUsed()) cl->Use();
1744 }
1745
1746}
44347160 1747//------------------------------------------------------------------------
e43c066c 1748void AliITStrackerMI::AliITSlayer::ResetRoad() {
1749 //--------------------------------------------------------------------
1750 // This function calculates the road defined by the cluster density
1751 //--------------------------------------------------------------------
1752 Int_t n=0;
1753 for (Int_t i=0; i<fN; i++) {
1754 if (TMath::Abs(fClusters[i]->GetZ())<fR) n++;
1755 }
afd25725 1756 if (n>1) fRoad=2*fR*TMath::Sqrt(TMath::Pi()/n);
e43c066c 1757}
44347160 1758//------------------------------------------------------------------------
afd25725 1759Int_t AliITStrackerMI::AliITSlayer::InsertCluster(AliITSRecPoint *cl) {
e43c066c 1760 //--------------------------------------------------------------------
1761 //This function adds a cluster to this layer
1762 //--------------------------------------------------------------------
e50912db 1763 if (fN==AliITSRecoParam::GetMaxClusterPerLayer()) {
e43c066c 1764 return 1;
1765 }
1766 fCurrentSlice=-1;
afd25725 1767 fClusters[fN]=cl;
1d4090b7 1768 fN++;
afd25725 1769 AliITSdetector &det=GetDetector(cl->GetDetectorIndex());
d9ead1a0 1770 //AD
1771 Double_t nSigmaY=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaY2());
1772 Double_t nSigmaZ=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaZ2());
1773 if (cl->GetY()-nSigmaY<det.GetYmin()) det.SetYmin(cl->GetY()-nSigmaY);
1774 if (cl->GetY()+nSigmaY>det.GetYmax()) det.SetYmax(cl->GetY()+nSigmaY);
1775 if (cl->GetZ()-nSigmaZ<det.GetZmin()) det.SetZmin(cl->GetZ()-nSigmaZ);
1776 if (cl->GetZ()+nSigmaZ>det.GetZmax()) det.SetZmax(cl->GetZ()+nSigmaZ);
1777 //AD
1778 /*
afd25725 1779 if (cl->GetY()<det.GetYmin()) det.SetYmin(cl->GetY());
1780 if (cl->GetY()>det.GetYmax()) det.SetYmax(cl->GetY());
1781 if (cl->GetZ()<det.GetZmin()) det.SetZmin(cl->GetZ());
1782 if (cl->GetZ()>det.GetZmax()) det.SetZmax(cl->GetZ());
d9ead1a0 1783 */
e43c066c 1784 return 0;
1785}
44347160 1786//------------------------------------------------------------------------
e43c066c 1787void AliITStrackerMI::AliITSlayer::SortClusters()
1788{
1789 //
1790 //sort clusters
1791 //
00a7cc50 1792 AliITSRecPoint **clusters = new AliITSRecPoint*[fN];
1d4090b7 1793 Float_t *z = new Float_t[fN];
1794 Int_t * index = new Int_t[fN];
1795 //
d9ead1a0 1796 fMaxSigmaClY=0.; //AD
1797 fMaxSigmaClZ=0.; //AD
1798
1d4090b7 1799 for (Int_t i=0;i<fN;i++){
1800 z[i] = fClusters[i]->GetZ();
d9ead1a0 1801 // save largest errors in y and z for this layer
1802 fMaxSigmaClY=TMath::Max(fMaxSigmaClY,TMath::Sqrt(fClusters[i]->GetSigmaY2()));
1803 fMaxSigmaClZ=TMath::Max(fMaxSigmaClZ,TMath::Sqrt(fClusters[i]->GetSigmaZ2()));
1d4090b7 1804 }
1805 TMath::Sort(fN,z,index,kFALSE);
1806 for (Int_t i=0;i<fN;i++){
1807 clusters[i] = fClusters[index[i]];
1808 }
1809 //
1810 for (Int_t i=0;i<fN;i++){
1811 fClusters[i] = clusters[i];
1812 fZ[i] = fClusters[i]->GetZ();
1813 AliITSdetector &det=GetDetector(fClusters[i]->GetDetectorIndex());
1814 Double_t y=fR*det.GetPhi() + fClusters[i]->GetY();
1815 if (y>2.*fR*TMath::Pi()) y -= 2.*fR*TMath::Pi();
1816 fY[i] = y;
1817 }
1818 delete[] index;
1819 delete[] z;
1820 delete[] clusters;
1821 //
1822
e43c066c 1823 fYB[0]=10000000;
1824 fYB[1]=-10000000;
1825 for (Int_t i=0;i<fN;i++){
1826 if (fY[i]<fYB[0]) fYB[0]=fY[i];
1827 if (fY[i]>fYB[1]) fYB[1]=fY[i];
1828 fClusterIndex[i] = i;
1829 }
1830 //
1831 // fill slices
1832 fDy5 = (fYB[1]-fYB[0])/5.;
1833 fDy10 = (fYB[1]-fYB[0])/10.;
1834 fDy20 = (fYB[1]-fYB[0])/20.;
1835 for (Int_t i=0;i<6;i++) fN5[i] =0;
1836 for (Int_t i=0;i<11;i++) fN10[i]=0;
1837 for (Int_t i=0;i<21;i++) fN20[i]=0;
1838 //
1839 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;}
1840 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;}
1841 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;}
1842 //
1843 //
1d4090b7 1844 for (Int_t i=0;i<fN;i++)
1845 for (Int_t irot=-1;irot<=1;irot++){
1846 Float_t curY = fY[i]+irot*TMath::TwoPi()*fR;
1847 // slice 5
1848 for (Int_t slice=0; slice<6;slice++){
e50912db 1849 if (fBy5[slice][0]<curY && curY<fBy5[slice][1]&&fN5[slice]<AliITSRecoParam::GetMaxClusterPerLayer5()){
1d4090b7 1850 fClusters5[slice][fN5[slice]] = fClusters[i];
1851 fY5[slice][fN5[slice]] = curY;
1852 fZ5[slice][fN5[slice]] = fZ[i];
1853 fClusterIndex5[slice][fN5[slice]]=i;
1854 fN5[slice]++;
1855 }
e43c066c 1856 }
1d4090b7 1857 // slice 10
1858 for (Int_t slice=0; slice<11;slice++){
e50912db 1859 if (fBy10[slice][0]<curY && curY<fBy10[slice][1]&&fN10[slice]<AliITSRecoParam::GetMaxClusterPerLayer10()){
1d4090b7 1860 fClusters10[slice][fN10[slice]] = fClusters[i];
1861 fY10[slice][fN10[slice]] = curY;
1862 fZ10[slice][fN10[slice]] = fZ[i];
1863 fClusterIndex10[slice][fN10[slice]]=i;
1864 fN10[slice]++;
1865 }
e43c066c 1866 }
1d4090b7 1867 // slice 20
1868 for (Int_t slice=0; slice<21;slice++){
e50912db 1869 if (fBy20[slice][0]<curY && curY<fBy20[slice][1]&&fN20[slice]<AliITSRecoParam::GetMaxClusterPerLayer20()){
1d4090b7 1870 fClusters20[slice][fN20[slice]] = fClusters[i];
1871 fY20[slice][fN20[slice]] = curY;
1872 fZ20[slice][fN20[slice]] = fZ[i];
1873 fClusterIndex20[slice][fN20[slice]]=i;
1874 fN20[slice]++;
1875 }
1876 }
e43c066c 1877 }
1d4090b7 1878
1879 //
1880 // consistency check
1881 //
1882 for (Int_t i=0;i<fN-1;i++){
1883 if (fZ[i]>fZ[i+1]){
ae00569a 1884 printf("Bug\n");
e43c066c 1885 }
1886 }
1d4090b7 1887 //
1888 for (Int_t slice=0;slice<21;slice++)
1889 for (Int_t i=0;i<fN20[slice]-1;i++){
1890 if (fZ20[slice][i]>fZ20[slice][i+1]){
ae00569a 1891 printf("Bug\n");
1d4090b7 1892 }
1893 }
1894
1895
e43c066c 1896}
44347160 1897//------------------------------------------------------------------------
e43c066c 1898Int_t AliITStrackerMI::AliITSlayer::FindClusterIndex(Float_t z) const {
1899 //--------------------------------------------------------------------
1900 // This function returns the index of the nearest cluster
1901 //--------------------------------------------------------------------
1902 Int_t ncl=0;
1903 const Float_t *zcl;
1904 if (fCurrentSlice<0) {
1905 ncl = fN;
1906 zcl = fZ;
1907 }
1908 else{
1909 ncl = fNcs;
1910 zcl = fZcs;;
1911 }
1912
1913 if (ncl==0) return 0;
1914 Int_t b=0, e=ncl-1, m=(b+e)/2;
1915 for (; b<e; m=(b+e)/2) {
1916 // if (z > fClusters[m]->GetZ()) b=m+1;
1917 if (z > zcl[m]) b=m+1;
1918 else e=m;
1919 }
1920 return m;
1921}
44347160 1922//------------------------------------------------------------------------
1c97ce2f 1923Bool_t AliITStrackerMI::ComputeRoad(AliITStrackMI* track,Int_t ilayer,Int_t idet,Double_t &zmin,Double_t &zmax,Double_t &ymin,Double_t &ymax) const {
1924 //--------------------------------------------------------------------
1925 // This function computes the rectangular road for this track
1926 //--------------------------------------------------------------------
1927
1928
1929 AliITSdetector &det = fgLayers[ilayer].GetDetector(idet);
1930 // take into account the misalignment: propagate track to misaligned detector plane
1931 if (!track->Propagate(det.GetPhi(),det.GetRmisal())) return kFALSE;
1932
1933 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
1934 TMath::Sqrt(track->GetSigmaZ2() +
1935 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1936 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1937 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
1938 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
1939 TMath::Sqrt(track->GetSigmaY2() +
1940 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1941 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1942 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
1943
1944 // track at boundary between detectors, enlarge road
1945 Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
1946 if ( (track->GetY()-dy < det.GetYmin()+boundaryWidth) ||
1947 (track->GetY()+dy > det.GetYmax()-boundaryWidth) ||
1948 (track->GetZ()-dz < det.GetZmin()+boundaryWidth) ||
1949 (track->GetZ()+dz > det.GetZmax()-boundaryWidth) ) {
1950 Float_t tgl = TMath::Abs(track->GetTgl());
1951 if (tgl > 1.) tgl=1.;
1952 Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets();
1953 dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl);
1954 Float_t snp = TMath::Abs(track->GetSnp());
1955 if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) return kFALSE;
1956 dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
1957 } // boundary
1958
1959 // add to the road a term (up to 2-3 mm) to deal with misalignments
1960 dy = TMath::Sqrt(dy*dy + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
1961 dz = TMath::Sqrt(dz*dz + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
1962
1963 Double_t r = fgLayers[ilayer].GetR();
1964 zmin = track->GetZ() - dz;
1965 zmax = track->GetZ() + dz;
1966 ymin = track->GetY() + r*det.GetPhi() - dy;
1967 ymax = track->GetY() + r*det.GetPhi() + dy;
1968
1969 // bring track back to idead detector plane
1970 if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
1971
1972 return kTRUE;
1973}
1974//------------------------------------------------------------------------
e43c066c 1975void AliITStrackerMI::AliITSlayer::
1976SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) {
1977 //--------------------------------------------------------------------
1978 // This function sets the "window"
1979 //--------------------------------------------------------------------
1980
628e7bb0 1981 Double_t circle=2*TMath::Pi()*fR;
d9ead1a0 1982 fYmin = ymin;
1983 fYmax = ymax;
1984 fZmin = zmin;
1985 fZmax = zmax;
1986 // AD
1987 // enlarge road in y by maximum cluster error on this layer (3 sigma)
1988 fYmin -= fNMaxSigmaCl*fMaxSigmaClY;
1989 fYmax += fNMaxSigmaCl*fMaxSigmaClY;
1990 fZmin -= fNMaxSigmaCl*fMaxSigmaClZ;
1991 fZmax += fNMaxSigmaCl*fMaxSigmaClZ;
1992
e43c066c 1993 Float_t ymiddle = (fYmin+fYmax)*0.5;
ae00569a 1994 if (ymiddle<fYB[0]) {
1995 fYmin+=circle; fYmax+=circle; ymiddle+=circle;
1996 } else if (ymiddle>fYB[1]) {
1997 fYmin-=circle; fYmax-=circle; ymiddle-=circle;
e43c066c 1998 }
ae00569a 1999
e43c066c 2000 //
2001 fCurrentSlice =-1;
2002 // defualt take all
2003 fClustersCs = fClusters;
2004 fClusterIndexCs = fClusterIndex;
2005 fYcs = fY;
2006 fZcs = fZ;
2007 fNcs = fN;
628e7bb0 2008 //
e43c066c 2009 //is in 20 slice?
2010 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy20){
2011 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy20);
2012 if (slice<0) slice=0;
2013 if (slice>20) slice=20;
2014 Bool_t isOK = (fYmin>fBy20[slice][0]&&fYmax<fBy20[slice][1]);
2015 if (isOK) {
2016 fCurrentSlice=slice;
2017 fClustersCs = fClusters20[fCurrentSlice];
2018 fClusterIndexCs = fClusterIndex20[fCurrentSlice];
2019 fYcs = fY20[fCurrentSlice];
2020 fZcs = fZ20[fCurrentSlice];
2021 fNcs = fN20[fCurrentSlice];
2022 }
2023 }
2024 //
2025 //is in 10 slice?
2026 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy10){
2027 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy10);
2028 if (slice<0) slice=0;
2029 if (slice>10) slice=10;
2030 Bool_t isOK = (fYmin>fBy10[slice][0]&&fYmax<fBy10[slice][1]);
2031 if (isOK) {
2032 fCurrentSlice=slice;
2033 fClustersCs = fClusters10[fCurrentSlice];
2034 fClusterIndexCs = fClusterIndex10[fCurrentSlice];
2035 fYcs = fY10[fCurrentSlice];
2036 fZcs = fZ10[fCurrentSlice];
2037 fNcs = fN10[fCurrentSlice];
2038 }
2039 }
2040 //
2041 //is in 5 slice?
2042 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy5){
2043 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy5);
2044 if (slice<0) slice=0;
2045 if (slice>5) slice=5;
2046 Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]);
ae00569a 2047 if (isOK) {
e43c066c 2048 fCurrentSlice=slice;
2049 fClustersCs = fClusters5[fCurrentSlice];
2050 fClusterIndexCs = fClusterIndex5[fCurrentSlice];
2051 fYcs = fY5[fCurrentSlice];
2052 fZcs = fZ5[fCurrentSlice];
2053 fNcs = fN5[fCurrentSlice];
2054 }
2055 }
628e7bb0 2056 //
d9ead1a0 2057 fI = FindClusterIndex(fZmin);
2058 fImax = TMath::Min(FindClusterIndex(fZmax)+1,fNcs);
2059 fSkip = 0;
2060 fAccepted = 0;
6518a6c5 2061
2062 return;
e43c066c 2063}
44347160 2064//------------------------------------------------------------------------
628e7bb0 2065Int_t AliITStrackerMI::AliITSlayer::
2066FindDetectorIndex(Double_t phi, Double_t z) const {
2067 //--------------------------------------------------------------------
2068 //This function finds the detector crossed by the track
2069 //--------------------------------------------------------------------
31fb8575 2070 Double_t dphi;
2071 if (fZOffset<0) // old geometry
2072 dphi = -(phi-fPhiOffset);
2073 else // new geometry
2074 dphi = phi-fPhiOffset;
2075
6518a6c5 2076
628e7bb0 2077 if (dphi < 0) dphi += 2*TMath::Pi();
2078 else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi();
2079 Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5);
2080 if (np>=fNladders) np-=fNladders;
2081 if (np<0) np+=fNladders;
2082
6518a6c5 2083
628e7bb0 2084 Double_t dz=fZOffset-z;
6518a6c5 2085 Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5;
2086 Int_t nz = (nnz<0 ? -1 : (Int_t)nnz);
bf1cd124 2087 if (nz>=fNdetectors || nz<0) {
2088 //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz);
2089 return -1;
2090 }
628e7bb0 2091
23197852 2092 // ad hoc correction for 3rd ladder of SDD inner layer,
2093 // which is reversed (rotated by pi around local y)
2094 // this correction is OK only from AliITSv11Hybrid onwards
2095 if (GetR()>12. && GetR()<20.) { // SDD inner
2096 if(np==2) { // 3rd ladder
6801b453 2097 Double_t posMod252[3];
2098 AliITSgeomTGeo::GetTranslation(252,posMod252);
2099 // check the Z coordinate of Mod 252: if negative
2100 // (old SDD geometry in AliITSv11Hybrid)
2101 // the swap of numeration whould be applied
2102 if(posMod252[2]<0.){
2103 nz = (fNdetectors-1) - nz;
2104 }
2105 }
23197852 2106 }
2107 //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz);
2108
2109
628e7bb0 2110 return np*fNdetectors + nz;
2111}
44347160 2112//------------------------------------------------------------------------
ae00569a 2113const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci,Bool_t test)
2114{
e43c066c 2115 //--------------------------------------------------------------------
2116 // This function returns clusters within the "window"
2117 //--------------------------------------------------------------------
2118
ae00569a 2119 if (fCurrentSlice<0) {
e43c066c 2120 Double_t rpi2 = 2.*fR*TMath::Pi();
2121 for (Int_t i=fI; i<fImax; i++) {
2122 Double_t y = fY[i];
d9ead1a0 2123 Double_t z = fZ[i];
e43c066c 2124 if (fYmax<y) y -= rpi2;
1d4090b7 2125 if (fYmin>y) y += rpi2;
e43c066c 2126 if (y<fYmin) continue;
2127 if (y>fYmax) continue;
d9ead1a0 2128 // AD
2129 // skip clusters that are in "extended" road but they
2130 // 3sigma error does not touch the original road
2131 if (z+fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())<fZmin+fNMaxSigmaCl*fMaxSigmaClZ) continue;
2132 if (z-fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())>fZmax-fNMaxSigmaCl*fMaxSigmaClZ) continue;
2133 //
88e3c173 2134 if (TMath::Abs(fClusters[i]->GetQ())<1.e-13 && fSkip==2) continue;
e43c066c 2135 ci=i;
ae00569a 2136 if (!test) fI=i+1;
e43c066c 2137 return fClusters[i];
2138 }
ae00569a 2139 } else {
e43c066c 2140 for (Int_t i=fI; i<fImax; i++) {
2141 if (fYcs[i]<fYmin) continue;
2142 if (fYcs[i]>fYmax) continue;
88e3c173 2143 if (TMath::Abs(fClustersCs[i]->GetQ())<1.e-13 && fSkip==2) continue;
e43c066c 2144 ci=fClusterIndexCs[i];
ae00569a 2145 if (!test) fI=i+1;
e43c066c 2146 return fClustersCs[i];
2147 }
2148 }
2149 return 0;
2150}
44347160 2151//------------------------------------------------------------------------
e43c066c 2152Double_t AliITStrackerMI::AliITSlayer::GetThickness(Double_t y,Double_t z,Double_t &x0)
2153const {
2154 //--------------------------------------------------------------------
afd25725 2155 // This function returns the layer thickness at this point (units X0)
e43c066c 2156 //--------------------------------------------------------------------
2157 Double_t d=0.0085;
e50912db 2158 x0=AliITSRecoParam::GetX0Air();
e43c066c 2159 if (43<fR&&fR<45) { //SSD2
2160 Double_t dd=0.0034;
2161 d=dd;
2162 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2163 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
2164 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
2165 for (Int_t i=0; i<12; i++) {
2166 if (TMath::Abs(z-3.9*(i+0.5))<0.15) {
2167 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2168 d+=0.0034;
2169 break;
2170 }
2171 if (TMath::Abs(z+3.9*(i+0.5))<0.15) {
2172 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2173 d+=0.0034;
2174 break;
2175 }
2176 if (TMath::Abs(z-3.4-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2177 if (TMath::Abs(z+0.5+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2178 }
2179 } else
2180 if (37<fR&&fR<41) { //SSD1
2181 Double_t dd=0.0034;
2182 d=dd;
2183 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2184 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
2185 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
2186 for (Int_t i=0; i<11; i++) {
2187 if (TMath::Abs(z-3.9*i)<0.15) {
2188 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2189 d+=dd;
2190 break;
2191 }
2192 if (TMath::Abs(z+3.9*i)<0.15) {
2193 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2194 d+=dd;
2195 break;
2196 }
2197 if (TMath::Abs(z-1.85-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2198 if (TMath::Abs(z+2.05+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2199 }
2200 } else
2201 if (13<fR&&fR<26) { //SDD
2202 Double_t dd=0.0033;
2203 d=dd;
2204 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2205
2206 if (TMath::Abs(y-1.80)<0.55) {
2207 d+=0.016;
2208 for (Int_t j=0; j<20; j++) {
2209 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2210 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2211 }
2212 }
2213 if (TMath::Abs(y+1.80)<0.55) {
2214 d+=0.016;
2215 for (Int_t j=0; j<20; j++) {
2216 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2217 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2218 }
2219 }
2220
2221 for (Int_t i=0; i<4; i++) {
2222 if (TMath::Abs(z-7.3*i)<0.60) {
2223 d+=dd;
2224 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2225 break;
2226 }
2227 if (TMath::Abs(z+7.3*i)<0.60) {
2228 d+=dd;
2229 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2230 break;
2231 }
2232 }
2233 } else
2234 if (6<fR&&fR<8) { //SPD2
2235 Double_t dd=0.0063; x0=21.5;
2236 d=dd;
2237 if (TMath::Abs(y-3.08)>0.5) d+=dd;
afd25725 2238 if (TMath::Abs(y-3.03)<0.10) d+=0.014;
e43c066c 2239 } else
2240 if (3<fR&&fR<5) { //SPD1
2241 Double_t dd=0.0063; x0=21.5;
2242 d=dd;
2243 if (TMath::Abs(y+0.21)>0.6) d+=dd;
afd25725 2244 if (TMath::Abs(y+0.10)<0.10) d+=0.014;
e43c066c 2245 }
2246
2247 return d;
2248}
44347160 2249//------------------------------------------------------------------------
23197852 2250AliITStrackerMI::AliITSdetector::AliITSdetector(const AliITSdetector& det):
2251fR(det.fR),
1c97ce2f 2252fRmisal(det.fRmisal),
23197852 2253fPhi(det.fPhi),
2254fSinPhi(det.fSinPhi),
2255fCosPhi(det.fCosPhi),
2256fYmin(det.fYmin),
2257fYmax(det.fYmax),
2258fZmin(det.fZmin),
2259fZmax(det.fZmax),
2260fIsBad(det.fIsBad),
2261fNChips(det.fNChips),
2262fChipIsBad(det.fChipIsBad)
2263{
2264 //Copy constructor
2265}
2266//------------------------------------------------------------------------
2267void AliITStrackerMI::AliITSdetector::ReadBadDetectorAndChips(Int_t ilayer,Int_t idet,
a70ed6ad 2268 const AliITSDetTypeRec *detTypeRec)
23197852 2269{
2270 //--------------------------------------------------------------------
2271 // Read bad detectors and chips from calibration objects in AliITSDetTypeRec
2272 //--------------------------------------------------------------------
2273
2274 // In AliITSDetTypeRec, detector numbers go from 0 to 2197
2275 // while in the tracker they start from 0 for each layer
2276 for(Int_t il=0; il<ilayer; il++)
2277 idet += AliITSgeomTGeo::GetNLadders(il+1)*AliITSgeomTGeo::GetNDetectors(il+1);
2278
2279 Int_t detType;
2280 if (ilayer==0 || ilayer==1) { // ---------- SPD
2281 detType = 0;
2282 } else if (ilayer==2 || ilayer==3) { // ---------- SDD
2283 detType = 1;
2284 } else if (ilayer==4 || ilayer==5) { // ---------- SSD
2285 detType = 2;
2286 } else {
2287 printf("AliITStrackerMI::AliITSdetector::InitBadFromOCDB: Wrong layer number %d\n",ilayer);
2288 return;
2289 }
2290
2291 // Get calibration from AliITSDetTypeRec
2292 AliITSCalibration *calib = (AliITSCalibration*)detTypeRec->GetCalibrationModel(idet);
d1181f10 2293 calib->SetModuleIndex(idet);
23197852 2294 AliITSCalibration *calibSPDdead = 0;
2295 if(detType==0) calibSPDdead = (AliITSCalibration*)detTypeRec->GetSPDDeadModel(idet); // TEMPORARY
2296 if (calib->IsBad() ||
2297 (detType==0 && calibSPDdead->IsBad())) // TEMPORARY
2298 {
2299 SetBad();
359ac74d 2300 // printf("lay %d bad %d\n",ilayer,idet);
23197852 2301 }
2302
2303 // Get segmentation from AliITSDetTypeRec
2304 AliITSsegmentation *segm = (AliITSsegmentation*)detTypeRec->GetSegmentationModel(detType);
2305
2306 // Read info about bad chips
2307 fNChips = segm->GetMaximumChipIndex()+1;
2308 //printf("ilayer %d detType %d idet %d fNChips %d %d GetNumberOfChips %d\n",ilayer,detType,idet,fNChips,segm->GetMaximumChipIndex(),segm->GetNumberOfChips());
2309 if(fChipIsBad) { delete [] fChipIsBad; fChipIsBad=NULL; }
2310 fChipIsBad = new Bool_t[fNChips];
2311 for (Int_t iCh=0;iCh<fNChips;iCh++) {
2312 fChipIsBad[iCh] = calib->IsChipBad(iCh);
2313 if (detType==0 && calibSPDdead->IsChipBad(iCh)) fChipIsBad[iCh] = kTRUE; // TEMPORARY
4187a601 2314 //if(fChipIsBad[iCh]) {printf("lay %d det %d bad chip %d\n",ilayer,idet,iCh);}
23197852 2315 }
2316
2317 return;
2318}
2319//------------------------------------------------------------------------
e50912db 2320Double_t AliITStrackerMI::GetEffectiveThickness()
e43c066c 2321{
2322 //--------------------------------------------------------------------
afd25725 2323 // Returns the thickness between the current layer and the vertex (units X0)
e43c066c 2324 //--------------------------------------------------------------------
e43c066c 2325
e50912db 2326 if(fUseTGeo!=0) {
2327 if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers");
2328 if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields");
2329 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
2330 }
2331
afd25725 2332 // beam pipe
e50912db 2333 Double_t dPipe = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe);
2334 Double_t d=dPipe*AliITSRecoParam::GetrPipe()*AliITSRecoParam::GetrPipe();
afd25725 2335
2336 // layers
2337 Double_t x0=0;
e43c066c 2338 Double_t xn=fgLayers[fI].GetR();
2339 for (Int_t i=0; i<fI; i++) {
2340 Double_t xi=fgLayers[i].GetR();
e50912db 2341 Double_t dLayer = (fUseTGeo==0 ? fgLayers[i].GetThickness(0,0,x0) : fxOverX0Layer[i]);
2342 d+=dLayer*xi*xi;
e43c066c 2343 }
2344
afd25725 2345 // shields
e43c066c 2346 if (fI>1) {
e50912db 2347 Double_t dshieldSPD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]);
2348 d+=dshieldSPD*AliITSRecoParam::GetrInsideShield(0)*AliITSRecoParam::GetrInsideShield(0);
e43c066c 2349 }
e43c066c 2350 if (fI>3) {
e50912db 2351 Double_t dshieldSDD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]);
2352 d+=dshieldSDD*AliITSRecoParam::GetrInsideShield(1)*AliITSRecoParam::GetrInsideShield(1);
e43c066c 2353 }
e43c066c 2354 return d/(xn*xn);
2355}
a4354152 2356
2357//------------------------------------------------------------------------
2358Int_t AliITStrackerMI::GetEffectiveThicknessLbyL(Double_t* xMS, Double_t* x2x0MS)
2359{
2360 //--------------------------------------------------------------------
2361 // Returns the array of layers between the current layer and the vertex
2362 //--------------------------------------------------------------------
2363 //
2364 if(fUseTGeo!=0) {
2365 if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers");
2366 if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields");
2367 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
2368 }
2369
2370 int nl = 0;
2371 double x0 = 0;
2372 for (int il=fI;il--;) {
2373 //
2374 if (il==3) {
2375 x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]);
2376 xMS[nl++] = AliITSRecoParam::GetrInsideShield(1);
2377 }
2378 else if (il==1) {
2379 x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]);
2380 xMS[nl++] = AliITSRecoParam::GetrInsideShield(0);
2381 }
2382 //
2383 x2x0MS[nl] = (fUseTGeo==0 ? fgLayers[il].GetThickness(0,0,x0) : fxOverX0Layer[il]);
2384 xMS[nl++] = fgLayers[il].GetR();
2385 //
2386 }
2387 //
2388 // beam pipe
2389 x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe);
2390 xMS[nl++] = AliITSRecoParam::GetrPipe();
2391 //
2392 return nl;
2393}
2394
2395
44347160 2396//------------------------------------------------------------------------
e43c066c 2397Int_t AliITStrackerMI::AliITSlayer::InRoad() const {
ae00569a 2398 //-------------------------------------------------------------------
e43c066c 2399 // This function returns number of clusters within the "window"
2400 //--------------------------------------------------------------------
2401 Int_t ncl=0;
2402 for (Int_t i=fI; i<fN; i++) {
00a7cc50 2403 const AliITSRecPoint *c=fClusters[i];
e43c066c 2404 if (c->GetZ() > fZmax) break;
2405 if (c->IsUsed()) continue;
2406 const AliITSdetector &det=GetDetector(c->GetDetectorIndex());
2407 Double_t y=fR*det.GetPhi() + c->GetY();
2408
2409 if (y>2.*fR*TMath::Pi()) y -= 2*fR*TMath::Pi();
2410 if (y>1.*fR*TMath::Pi() && fYmax<y) y -= 2*fR*TMath::Pi();
2411
2412 if (y<fYmin) continue;
2413 if (y>fYmax) continue;
2414 ncl++;
2415 }
2416 return ncl;
2417}
44347160 2418//------------------------------------------------------------------------
ae00569a 2419Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 2420 const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 2421{
e43c066c 2422 //--------------------------------------------------------------------
ae00569a 2423 // This function refits the track "track" at the position "x" using
2424 // the clusters from "clusters"
ef7253ac 2425 // If "extra"==kTRUE,
ae00569a 2426 // the clusters from overlapped modules get attached to "track"
7167ae53 2427 // If "planeff"==kTRUE,
2428 // special approach for plane efficiency evaluation is applyed
e43c066c 2429 //--------------------------------------------------------------------
6518a6c5 2430
e50912db 2431 Int_t index[AliITSgeomTGeo::kNLayers];
e43c066c 2432 Int_t k;
e50912db 2433 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
ae00569a 2434 Int_t nc=clusters->GetNumberOfClusters();
e43c066c 2435 for (k=0; k<nc; k++) {
ae00569a 2436 Int_t idx=clusters->GetClusterIndex(k);
2437 Int_t ilayer=(idx&0xf0000000)>>28;
2438 index[ilayer]=idx;
e43c066c 2439 }
67c1e979 2440
7167ae53 2441 return RefitAt(xx,track,index,extra,planeeff); // call the method below
67c1e979 2442}
44347160 2443//------------------------------------------------------------------------
ae00569a 2444Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 2445 const Int_t *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 2446{
67c1e979 2447 //--------------------------------------------------------------------
ae00569a 2448 // This function refits the track "track" at the position "x" using
67c1e979 2449 // the clusters from array
ae00569a 2450 // If "extra"==kTRUE,
2451 // the clusters from overlapped modules get attached to "track"
7167ae53 2452 // If "planeff"==kTRUE,
2453 // special approach for plane efficiency evaluation is applyed
67c1e979 2454 //--------------------------------------------------------------------
e50912db 2455 Int_t index[AliITSgeomTGeo::kNLayers];
67c1e979 2456 Int_t k;
e50912db 2457 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
67c1e979 2458 //
e50912db 2459 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
ae00569a 2460 index[k]=clusters[k];
67c1e979 2461 }
2462
74008278 2463 // special for cosmics and TPC prolonged tracks:
269709f8 2464 // propagate to the innermost of:
2465 // - innermost layer crossed by the track
2466 // - innermost layer where a cluster was associated to the track
74008278 2467 static AliITSRecoParam *repa = NULL;
2468 if(!repa){
2469 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
2470 if(!repa){
2471 repa = AliITSRecoParam::GetHighFluxParam();
2472 AliWarning("Using default AliITSRecoParam class");
2473 }
2474 }
2475 Int_t evsp=repa->GetEventSpecie();
15f91fcd 2476 ULong_t trStatus=0;
2477 if(track->GetESDtrack()) trStatus=track->GetStatus();
74008278 2478 Int_t innermostlayer=0;
15f91fcd 2479 if((evsp&AliRecoParam::kCosmic) || (trStatus&AliESDtrack::kTPCin)) {
74008278 2480 innermostlayer=5;
2481 Double_t drphi = TMath::Abs(track->GetD(0.,0.));
2482 for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) {
269709f8 2483 if( (drphi < (fgLayers[innermostlayer].GetR()+1.)) ||
2484 index[innermostlayer] >= 0 ) break;
74008278 2485 }
269709f8 2486
74008278 2487 AliDebug(2,Form(" drphi %f innermost %d",drphi,innermostlayer));
ae00569a 2488 }
afd25725 2489
ae00569a 2490 Int_t modstatus=1; // found
2491 Float_t xloc,zloc;
67c1e979 2492 Int_t from, to, step;
ae00569a 2493 if (xx > track->GetX()) {
e50912db 2494 from=innermostlayer; to=AliITSgeomTGeo::GetNLayers();
67c1e979 2495 step=+1;
2496 } else {
e50912db 2497 from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1;
67c1e979 2498 step=-1;
2499 }
ae00569a 2500 TString dir = (step>0 ? "outward" : "inward");
67c1e979 2501
ae00569a 2502 for (Int_t ilayer = from; ilayer != to; ilayer += step) {
6518a6c5 2503 AliITSlayer &layer=fgLayers[ilayer];
67c1e979 2504 Double_t r=layer.GetR();
4fa7f7d1 2505
afd25725 2506 if (step<0 && xx>r) break;
2507
2508 // material between SSD and SDD, SDD and SPD
6518a6c5 2509 Double_t hI=ilayer-0.5*step;
e50912db 2510 if (TMath::Abs(hI-3.5)<0.01) // SDDouter
ae00569a 2511 if(!CorrectForShieldMaterial(track,"SDD",dir)) return kFALSE;
e50912db 2512 if (TMath::Abs(hI-1.5)<0.01) // SPDouter
ae00569a 2513 if(!CorrectForShieldMaterial(track,"SPD",dir)) return kFALSE;
67c1e979 2514
ae00569a 2515
afd25725 2516 Double_t oldGlobXYZ[3];
d1181f10 2517 if (!track->GetXYZ(oldGlobXYZ)) return kFALSE;
afd25725 2518
67178f34 2519 // continue if we are already beyond this layer
2520 Double_t oldGlobR = TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
2521 if(step>0 && oldGlobR > r) continue; // going outward
2522 if(step<0 && oldGlobR < r) continue; // going inward
2523
8602c008 2524 Double_t phi,z;
ae00569a 2525 if (!track->GetPhiZat(r,phi,z)) return kFALSE;
67c1e979 2526
67c1e979 2527 Int_t idet=layer.FindDetectorIndex(phi,z);
6518a6c5 2528
2529 // check if we allow a prolongation without point for large-eta tracks
ae00569a 2530 Int_t skip = CheckSkipLayer(track,ilayer,idet);
6518a6c5 2531 if (skip==2) {
ae00569a 2532 modstatus = 4; // out in z
d1181f10 2533 if(LocalModuleCoord(ilayer,idet,track,xloc,zloc)) { // local module coords
2534 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2535 }
7131593b 2536 // cross layer
2537 // apply correction for material of the current layer
2538 // add time if going outward
2539 CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir);
6518a6c5 2540 continue;
2541 }
2542
e50912db 2543 if (idet<0) return kFALSE;
ae00569a 2544
4fa7f7d1 2545
67c1e979 2546 const AliITSdetector &det=layer.GetDetector(idet);
545af9ef 2547 // only for ITS-SA tracks refit
2548 if (ilayer>1 && fTrackingPhase.Contains("RefitInward") && !(track->GetStatus()&AliESDtrack::kTPCin)) track->SetCheckInvariant(kFALSE);
2549 //
1c97ce2f 2550 if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
23197852 2551
ae00569a 2552 track->SetDetectorIndex(idet);
d1181f10 2553 if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
67c1e979 2554
23197852 2555 Double_t dz,zmin,zmax,dy,ymin,ymax;
ae00569a 2556
2557 const AliITSRecPoint *clAcc=0;
44347160 2558 Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
67c1e979 2559
6518a6c5 2560 Int_t idx=index[ilayer];
ae00569a 2561 if (idx>=0) { // cluster in this layer
2562 modstatus = 6; // no refit
2563 const AliITSRecPoint *cl=(AliITSRecPoint *)GetCluster(idx);
2564 if (cl) {
2565 if (idet != cl->GetDetectorIndex()) {
2566 idet=cl->GetDetectorIndex();
a5d0fae6 2567 const AliITSdetector &detc=layer.GetDetector(idet);
2568 if (!track->Propagate(detc.GetPhi(),detc.GetR())) return kFALSE;
ae00569a 2569 track->SetDetectorIndex(idet);
d1181f10 2570 if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
ae00569a 2571 }
ae00569a 2572 Int_t cllayer = (idx & 0xf0000000) >> 28;;
2573 Double_t chi2=GetPredictedChi2MI(track,cl,cllayer);
2574 if (chi2<maxchi2) {
2575 clAcc=cl;
2576 maxchi2=chi2;
2577 modstatus = 1; // found
2578 } else {
7167ae53 2579 return kFALSE; //
ae00569a 2580 }
2581 }
2582 } else { // no cluster in this layer
2583 if (skip==1) {
2584 modstatus = 3; // skipped
0ed58a47 2585 // Plane Eff determination:
2586 if (planeeff && ilayer==AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()) {
2587 if (IsOKForPlaneEff(track,clusters,ilayer)) // only adequate track for plane eff. evaluation
2588 UseTrackForPlaneEff(track,ilayer);
7167ae53 2589 }
ae00569a 2590 } else {
2591 modstatus = 5; // no cls in road
2592 // check dead
1c97ce2f 2593 if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
2594 dz = 0.5*(zmax-zmin);
2595 dy = 0.5*(ymax-ymin);
2596 Int_t dead = CheckDeadZone(track,ilayer,idet,dz,dy,kTRUE);
ae00569a 2597 if (dead==1) modstatus = 7; // holes in z in SPD
f8720bda 2598 if (dead==2 || dead==3 || dead==4) modstatus = 2; // dead from OCDB
ae00569a 2599 }
e43c066c 2600 }
ae00569a 2601
2602 if (clAcc) {
2603 if (!UpdateMI(track,clAcc,maxchi2,idx)) return kFALSE;
09cf9d66 2604 track->SetSampledEdx(clAcc->GetQ(),ilayer-2);
e43c066c 2605 }
ae00569a 2606 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2607
2608
ef3508c5 2609 if (extra && clAcc) { // search for extra clusters in overlapped modules
ae00569a 2610 AliITStrackV2 tmp(*track);
1c97ce2f 2611 if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
2612 layer.SelectClusters(zmin,zmax,ymin,ymax);
ae00569a 2613
2614 const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1;
2615 Int_t idetExtra=-1;
a5d0fae6 2616 maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
2617 Double_t tolerance=0.1;
ae00569a 2618 while ((clExtra=layer.GetNextCluster(ci))!=0) {
2619 // only clusters in another module! (overlaps)
2620 idetExtra = clExtra->GetDetectorIndex();
2621 if (idet == idetExtra) continue;
2622
a5d0fae6 2623 const AliITSdetector &detx=layer.GetDetector(idetExtra);
ae00569a 2624
1c97ce2f 2625 if (!tmp.Propagate(detx.GetPhi(),detx.GetR()+clExtra->GetX())) continue;
ae00569a 2626 if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue;
2627 if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) continue;
1c97ce2f 2628 if (!tmp.Propagate(detx.GetPhi(),detx.GetR())) continue;
ae00569a 2629
2630 Double_t chi2=tmp.GetPredictedChi2(clExtra);
2631 if (chi2<maxchi2) { maxchi2=chi2; cci=ci; }
2632 }
2633 if (cci>=0) {
2634 track->SetExtraCluster(ilayer,(ilayer<<28)+cci);
2635 track->SetExtraModule(ilayer,idetExtra);
2636 }
2637 } // end search for extra clusters in overlapped modules
1c97ce2f 2638
afd25725 2639 // Correct for material of the current layer
7131593b 2640 // cross material
2641 // add time if going outward
ae00569a 2642 if(!CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir)) return kFALSE;
545af9ef 2643 track->SetCheckInvariant(kTRUE);
ae00569a 2644 } // end loop on layers
2645
db355ee7 2646 if (!track->PropagateTo(xx,0.,0.)) return kFALSE;
e43c066c 2647
e43c066c 2648 return kTRUE;
2649}
44347160 2650//------------------------------------------------------------------------
15dd636f 2651Double_t AliITStrackerMI::GetNormalizedChi2(AliITStrackMI * track, Int_t mode)
e43c066c 2652{
2653 //
2654 // calculate normalized chi2
2655 // return NormalizedChi2(track,0);
2656 Float_t chi2 = 0;
2657 Float_t sum=0;
2658 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2659 // track->fdEdxMismatch=0;
2660 Float_t dedxmismatch =0;
2661 Float_t *ny = GetNy(fCurrentEsdTrack), *nz = GetNz(fCurrentEsdTrack);
2662 if (mode<100){
2663 for (Int_t i = 0;i<6;i++){
9fd412a8 2664 if (track->GetClIndex(i)>=0){
e43c066c 2665 Float_t cerry, cerrz;
2666 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
2667 else
b9671574 2668 { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2669 cerry*=cerry;
2670 cerrz*=cerrz;
b9671574 2671 Float_t cchi2 = (track->GetDy(i)*track->GetDy(i)/cerry)+(track->GetDz(i)*track->GetDz(i)/cerrz);
572f41f9 2672 if (i>1 && AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(i)) {
b9671574 2673 Float_t ratio = track->GetNormQ(i)/track->GetExpQ();
e43c066c 2674 if (ratio<0.5) {
2675 cchi2+=(0.5-ratio)*10.;
2676 //track->fdEdxMismatch+=(0.5-ratio)*10.;
2677 dedxmismatch+=(0.5-ratio)*10.;
2678 }
2679 }
2680 if (i<2 ||i>3){
b9671574 2681 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster( track->GetClIndex(i));
e43c066c 2682 Double_t delta = cl->GetNy()+cl->GetNz()-ny[i]-nz[i];
2683 if (delta>1) chi2 +=0.5*TMath::Min(delta/2,2.);
2684 if (i<2) chi2+=2*cl->GetDeltaProbability();
2685 }
2686 chi2+=cchi2;
2687 sum++;
2688 }
2689 }
b9671574 2690 if (TMath::Abs(track->GetdEdxMismatch()-dedxmismatch)>0.0001){
2691 track->SetdEdxMismatch(dedxmismatch);
e43c066c 2692 }
2693 }
2694 else{
2695 for (Int_t i = 0;i<4;i++){
9fd412a8 2696 if (track->GetClIndex(i)>=0){
e43c066c 2697 Float_t cerry, cerrz;
2698 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2699 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2700 cerry*=cerry;
2701 cerrz*=cerrz;
b9671574 2702 chi2+= (track->GetDy(i)*track->GetDy(i)/cerry);
2703 chi2+= (track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2704 sum++;
2705 }
2706 }
2707 for (Int_t i = 4;i<6;i++){
9fd412a8 2708 if (track->GetClIndex(i)>=0){
e43c066c 2709 Float_t cerry, cerrz;
2710 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2711 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2712 cerry*=cerry;
2713 cerrz*=cerrz;
2714 Float_t cerryb, cerrzb;
2715 if (ny[i+6]>0) {cerryb = erry[i+6]; cerrzb=errz[i+6];}
b9671574 2716 else { cerryb= track->GetSigmaY(i+6); cerrzb = track->GetSigmaZ(i+6);}
e43c066c 2717 cerryb*=cerryb;
2718 cerrzb*=cerrzb;
b9671574 2719 chi2+= TMath::Min((track->GetDy(i+6)*track->GetDy(i+6)/cerryb),track->GetDy(i)*track->GetDy(i)/cerry);
2720 chi2+= TMath::Min((track->GetDz(i+6)*track->GetDz(i+6)/cerrzb),track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2721 sum++;
2722 }
2723 }
2724 }
b9671574 2725 if (track->GetESDtrack()->GetTPCsignal()>85){
2726 Float_t ratio = track->GetdEdx()/track->GetESDtrack()->GetTPCsignal();
e43c066c 2727 if (ratio<0.5) {
2728 chi2+=(0.5-ratio)*5.;
2729 }
2730 if (ratio>2){
2731 chi2+=(ratio-2.0)*3;
2732 }
2733 }
2734 //
b9671574 2735 Double_t match = TMath::Sqrt(track->GetChi22());
2736 if (track->GetConstrain()) match/=track->GetNumberOfClusters();
2755f080 2737 if (!track->GetConstrain()) {
2738 if (track->GetNumberOfClusters()>2) {
2739 match/=track->GetNumberOfClusters()-2.;
2740 } else {
2741 match=0;
2742 }
2743 }
e43c066c 2744 if (match<0) match=0;
f8720bda 2745
2746 // penalty factor for missing points (NDeadZone>0), but no penalty
2747 // for layer with deadZoneProb close to 1 (either we wanted to skip layer
2748 // or there is a dead from OCDB)
2749 Float_t deadzonefactor = 0.;
2750 if (track->GetNDeadZone()>0.) {
bf1cd124 2751 Int_t sumDeadZoneProbability=0;
2752 for(Int_t ilay=0;ilay<6;ilay++) {
2753 if(track->GetDeadZoneProbability(ilay)>0.) sumDeadZoneProbability++;
2754 }
2755 Int_t nDeadZoneWithProbNot1=(Int_t)(track->GetNDeadZone())-sumDeadZoneProbability;
2756 if(nDeadZoneWithProbNot1>0) {
2757 Float_t deadZoneProbability = track->GetNDeadZone()-(Float_t)sumDeadZoneProbability;
a5a317a9 2758 AliDebug(2,Form("nDeadZone %f sumDZProbability %d nDZWithProbNot1 %d deadZoneProb %f\n",track->GetNDeadZone(),sumDeadZoneProbability,nDeadZoneWithProbNot1,deadZoneProbability));
bf1cd124 2759 deadZoneProbability /= (Float_t)nDeadZoneWithProbNot1;
2760 Float_t one = 1.;
2761 deadZoneProbability = TMath::Min(deadZoneProbability,one);
f8720bda 2762 deadzonefactor = 3.*(1.1-deadZoneProbability);
2763 }
2764 }
2765
b9671574 2766 Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())*
2767 (chi2)/TMath::Max(double(sum-track->GetNSkipped()),
2768 1./(1.+track->GetNSkipped()));
a5a317a9 2769 AliDebug(2,Form("match %f deadzonefactor %f chi2 %f sum %f skipped %f\n",match,deadzonefactor,chi2,sum,track->GetNSkipped()));
bf1cd124 2770 AliDebug(2,Form("NormChi2 %f cls %d\n",normchi2,track->GetNumberOfClusters()));
2771 return normchi2;
e43c066c 2772}
44347160 2773//------------------------------------------------------------------------
a70ed6ad 2774Double_t AliITStrackerMI::GetMatchingChi2(const AliITStrackMI * track1,const AliITStrackMI * track2)
e43c066c 2775{
2776 //
2777 // return matching chi2 between two tracks
d1181f10 2778 Double_t largeChi2=1000.;
2779
15dd636f 2780 AliITStrackMI track3(*track2);
d1181f10 2781 if (!track3.Propagate(track1->GetAlpha(),track1->GetX())) return largeChi2;
e43c066c 2782 TMatrixD vec(5,1);
6c94f330 2783 vec(0,0)=track1->GetY() - track3.GetY();
2784 vec(1,0)=track1->GetZ() - track3.GetZ();
2785 vec(2,0)=track1->GetSnp() - track3.GetSnp();
2786 vec(3,0)=track1->GetTgl() - track3.GetTgl();
6c23ffed 2787 vec(4,0)=track1->GetSigned1Pt() - track3.GetSigned1Pt();
e43c066c 2788 //
2789 TMatrixD cov(5,5);
6c94f330 2790 cov(0,0) = track1->GetSigmaY2()+track3.GetSigmaY2();
2791 cov(1,1) = track1->GetSigmaZ2()+track3.GetSigmaZ2();
2792 cov(2,2) = track1->GetSigmaSnp2()+track3.GetSigmaSnp2();
2793 cov(3,3) = track1->GetSigmaTgl2()+track3.GetSigmaTgl2();
2794 cov(4,4) = track1->GetSigma1Pt2()+track3.GetSigma1Pt2();
e43c066c 2795
6c94f330 2796 cov(0,1)=cov(1,0) = track1->GetSigmaZY()+track3.GetSigmaZY();
2797 cov(0,2)=cov(2,0) = track1->GetSigmaSnpY()+track3.GetSigmaSnpY();
2798 cov(0,3)=cov(3,0) = track1->GetSigmaTglY()+track3.GetSigmaTglY();
2799 cov(0,4)=cov(4,0) = track1->GetSigma1PtY()+track3.GetSigma1PtY();
e43c066c 2800 //
6c94f330 2801 cov(1,2)=cov(2,1) = track1->GetSigmaSnpZ()+track3.GetSigmaSnpZ();
2802 cov(1,3)=cov(3,1) = track1->GetSigmaTglZ()+track3.GetSigmaTglZ();
2803 cov(1,4)=cov(4,1) = track1->GetSigma1PtZ()+track3.GetSigma1PtZ();
e43c066c 2804 //
6c94f330 2805 cov(2,3)=cov(3,2) = track1->GetSigmaTglSnp()+track3.GetSigmaTglSnp();
2806 cov(2,4)=cov(4,2) = track1->GetSigma1PtSnp()+track3.GetSigma1PtSnp();
e43c066c 2807 //
6c94f330 2808 cov(3,4)=cov(4,3) = track1->GetSigma1PtTgl()+track3.GetSigma1PtTgl();
e43c066c 2809
2810 cov.Invert();
2811 TMatrixD vec2(cov,TMatrixD::kMult,vec);
2812 TMatrixD chi2(vec2,TMatrixD::kTransposeMult,vec);
2813 return chi2(0,0);
2814}
44347160 2815//------------------------------------------------------------------------
a70ed6ad 2816Double_t AliITStrackerMI::GetSPDDeadZoneProbability(Double_t zpos, Double_t zerr) const
e43c066c 2817{
2818 //
afd25725 2819 // return probability that given point (characterized by z position and error)
2820 // is in SPD dead zone
bf1cd124 2821 // This method assumes that fSPDdetzcentre is ordered from -z to +z
e43c066c 2822 //
afd25725 2823 Double_t probability = 0.;
bf1cd124 2824 Double_t nearestz = 0.,distz=0.;
2825 Int_t nearestzone = -1;
2826 Double_t mindistz = 1000.;
2827
2828 // find closest dead zone
2829 for (Int_t i=0; i<3; i++) {
2830 distz=TMath::Abs(zpos-0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1]));
2831 if (distz<mindistz) {
2832 nearestzone=i;
2833 nearestz=0.5*(fSPDdetzcentre[i]+fSPDdetzcentre[i+1]);
2834 mindistz=distz;
2835 }
2836 }
2837
2838 // too far from dead zone
2839 if (TMath::Abs(zpos-nearestz)>0.25+3.*zerr) return probability;
2840
2841
afd25725 2842 Double_t zmin, zmax;
bf1cd124 2843 if (nearestzone==0) { // dead zone at z = -7
e50912db 2844 zmin = fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2845 zmax = fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength();
bf1cd124 2846 } else if (nearestzone==1) { // dead zone at z = 0
e50912db 2847 zmin = fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2848 zmax = fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength();
bf1cd124 2849 } else if (nearestzone==2) { // dead zone at z = +7
2850 zmin = fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2851 zmax = fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2852 } else {
2853 zmin = 0.;
2854 zmax = 0.;
e43c066c 2855 }
afd25725 2856 // probability that the true z is in the range [zmin,zmax] (i.e. inside
2857 // dead zone)
bb7e41dd 2858 probability = 0.5*( AliMathBase::ErfFast((zpos-zmin)/zerr/TMath::Sqrt(2.)) -
2859 AliMathBase::ErfFast((zpos-zmax)/zerr/TMath::Sqrt(2.)) );
bf1cd124 2860 AliDebug(2,Form("zpos %f +- %f nearestzone %d zmin zmax %f %f prob %f\n",zpos,zerr,nearestzone,zmin,zmax,probability));
e43c066c 2861 return probability;
2862}
44347160 2863//------------------------------------------------------------------------
a70ed6ad 2864Double_t AliITStrackerMI::GetTruncatedChi2(const AliITStrackMI * track, Float_t fac)
e43c066c 2865{
2866 //
2867 // calculate normalized chi2
2868 Float_t chi2[6];
2869 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2870 Float_t ncl = 0;
2871 for (Int_t i = 0;i<6;i++){
b9671574 2872 if (TMath::Abs(track->GetDy(i))>0){
2873 chi2[i]= (track->GetDy(i)/erry[i])*(track->GetDy(i)/erry[i]);
2874 chi2[i]+= (track->GetDz(i)/errz[i])*(track->GetDz(i)/errz[i]);
e43c066c 2875 ncl++;
2876 }
2877 else{chi2[i]=10000;}
2878 }
2879 Int_t index[6];
2880 TMath::Sort(6,chi2,index,kFALSE);
2881 Float_t max = float(ncl)*fac-1.;
2882 Float_t sumchi=0, sumweight=0;
2883 for (Int_t i=0;i<max+1;i++){
2884 Float_t weight = (i<max)?1.:(max+1.-i);
2885 sumchi+=weight*chi2[index[i]];
2886 sumweight+=weight;
2887 }
2888 Double_t normchi2 = sumchi/sumweight;
2889 return normchi2;
2890}
44347160 2891//------------------------------------------------------------------------
a70ed6ad 2892Double_t AliITStrackerMI::GetInterpolatedChi2(const AliITStrackMI * forwardtrack,const AliITStrackMI * backtrack)
e43c066c 2893{
2894 //
2895 // calculate normalized chi2
2896 // if (forwardtrack->fNUsed>0.3*float(forwardtrack->GetNumberOfClusters())) return 10000;
2897 Int_t npoints = 0;
2898 Double_t res =0;
2899 for (Int_t i=0;i<6;i++){
b9671574 2900 if ( (backtrack->GetSigmaY(i)<0.000000001) || (forwardtrack->GetSigmaY(i)<0.000000001)) continue;
2901 Double_t sy1 = forwardtrack->GetSigmaY(i);
2902 Double_t sz1 = forwardtrack->GetSigmaZ(i);
2903 Double_t sy2 = backtrack->GetSigmaY(i);
2904 Double_t sz2 = backtrack->GetSigmaZ(i);
e43c066c 2905 if (i<2){ sy2=1000.;sz2=1000;}
2906 //
b9671574 2907 Double_t dy0 = (forwardtrack->GetDy(i)/(sy1*sy1) +backtrack->GetDy(i)/(sy2*sy2))/(1./(sy1*sy1)+1./(sy2*sy2));
2908 Double_t dz0 = (forwardtrack->GetDz(i)/(sz1*sz1) +backtrack->GetDz(i)/(sz2*sz2))/(1./(sz1*sz1)+1./(sz2*sz2));
e43c066c 2909 //
2910 Double_t nz0 = dz0*TMath::Sqrt((1./(sz1*sz1)+1./(sz2*sz2)));
2911 Double_t ny0 = dy0*TMath::Sqrt((1./(sy1*sy1)+1./(sy2*sy2)));
2912 //
2913 res+= nz0*nz0+ny0*ny0;
2914 npoints++;
2915 }
2916 if (npoints>1) return
6c23ffed 2917 TMath::Max(0.3*forwardtrack->OneOverPt()-0.5,0.)+
e43c066c 2918 //2*forwardtrack->fNUsed+
b9671574 2919 res/TMath::Max(double(npoints-forwardtrack->GetNSkipped()),
2920 1./(1.+forwardtrack->GetNSkipped()));
e43c066c 2921 return 1000;
2922}
44347160 2923//------------------------------------------------------------------------
e43c066c 2924Float_t *AliITStrackerMI::GetWeight(Int_t index) {
2925 //--------------------------------------------------------------------
2926 // Return pointer to a given cluster
2927 //--------------------------------------------------------------------
2928 Int_t l=(index & 0xf0000000) >> 28;
2929 Int_t c=(index & 0x0fffffff) >> 00;
2930 return fgLayers[l].GetWeight(c);
2931}
44347160 2932//------------------------------------------------------------------------
a70ed6ad 2933void AliITStrackerMI::RegisterClusterTracks(const AliITStrackMI* track,Int_t id)
e43c066c 2934{
2935 //---------------------------------------------
2936 // register track to the list
628e7bb0 2937 //
b9671574 2938 if (track->GetESDtrack()->GetKinkIndex(0)!=0) return; //don't register kink tracks
628e7bb0 2939 //
2940 //
e43c066c 2941 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2942 Int_t index = track->GetClusterIndex(icluster);
2943 Int_t l=(index & 0xf0000000) >> 28;
2944 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2945 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2946 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2947 if (fgLayers[l].GetClusterTracks(itrack,c)<0){
2948 fgLayers[l].SetClusterTracks(itrack,c,id);
e43c066c 2949 break;
2950 }
2951 }
2952 }
2953}
44347160 2954//------------------------------------------------------------------------
a70ed6ad 2955void AliITStrackerMI::UnRegisterClusterTracks(const AliITStrackMI* track, Int_t id)
e43c066c 2956{
2957 //---------------------------------------------
2958 // unregister track from the list
2959 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2960 Int_t index = track->GetClusterIndex(icluster);
2961 Int_t l=(index & 0xf0000000) >> 28;
2962 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2963 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2964 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2965 if (fgLayers[l].GetClusterTracks(itrack,c)==id){
2966 fgLayers[l].SetClusterTracks(itrack,c,-1);
e43c066c 2967 }
2968 }
2969 }
2970}
44347160 2971//------------------------------------------------------------------------
00a7cc50 2972Float_t AliITStrackerMI::GetNumberOfSharedClusters(AliITStrackMI* track,Int_t id, Int_t list[6], AliITSRecPoint *clist[6])
e43c066c 2973{
2974 //-------------------------------------------------------------
2975 //get number of shared clusters
2976 //-------------------------------------------------------------
2977 Float_t shared=0;
2978 for (Int_t i=0;i<6;i++) { list[i]=-1, clist[i]=0;}
2979 // mean number of clusters
2980 Float_t *ny = GetNy(id), *nz = GetNz(id);
2981
2982
2983 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2984 Int_t index = track->GetClusterIndex(icluster);
2985 Int_t l=(index & 0xf0000000) >> 28;
2986 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2987 if (c>fgLayers[l].GetNumberOfClusters()) continue;
5668b5b2 2988 // if (ny[l]<1.e-13){
2989 // printf("problem\n");
2990 // }
00a7cc50 2991 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2992 Float_t weight=1;
2993 //
2994 Float_t deltan = 0;
2995 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 2996 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
2997 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 2998 if (l<2 || l>3){
2999 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
3000 }
3001 else{
3002 deltan = (cl->GetNz()-nz[l]);
3003 }
3004 if (deltan>2.0) continue; // extended - highly probable shared cluster
3005 weight = 2./TMath::Max(3.+deltan,2.);
3006 //
3007 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 3008 if (fgLayers[l].GetClusterTracks(itrack,c)>=0 && fgLayers[l].GetClusterTracks(itrack,c)!=id){
e43c066c 3009 list[l]=index;
00a7cc50 3010 clist[l] = (AliITSRecPoint*)GetCluster(index);
25015f7a 3011 track->SetSharedWeight(l,weight);
e43c066c 3012 shared+=weight;
3013 break;
3014 }
3015 }
3016 }
b9671574 3017 track->SetNUsed(shared);
e43c066c 3018 return shared;
3019}
44347160 3020//------------------------------------------------------------------------
a70ed6ad 3021Int_t AliITStrackerMI::GetOverlapTrack(const AliITStrackMI *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6],Int_t overlist[6])
e43c066c 3022{
3023 //
3024 // find first shared track
3025 //
3026 // mean number of clusters
3027 Float_t *ny = GetNy(trackID), *nz = GetNz(trackID);
3028 //
3029 for (Int_t i=0;i<6;i++) overlist[i]=-1;
3030 Int_t sharedtrack=100000;
3031 Int_t tracks[24],trackindex=0;
3032 for (Int_t i=0;i<24;i++) {tracks[i]=-1;}
3033 //
3034 for (Int_t icluster=0;icluster<6;icluster++){
3035 if (clusterlist[icluster]<0) continue;
3036 Int_t index = clusterlist[icluster];
3037 Int_t l=(index & 0xf0000000) >> 28;
3038 Int_t c=(index & 0x0fffffff) >> 00;
5668b5b2 3039 // if (ny[l]<1.e-13){
3040 // printf("problem\n");
3041 // }
b9671574 3042 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 3043 //if (l>3) continue;
00a7cc50 3044 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 3045 //
3046 Float_t deltan = 0;
3047 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 3048 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
3049 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 3050 if (l<2 || l>3){
3051 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
3052 }
3053 else{
3054 deltan = (cl->GetNz()-nz[l]);
3055 }
3056 if (deltan>2.0) continue; // extended - highly probable shared cluster
3057 //
3058 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 3059 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
3060 if (fgLayers[l].GetClusterTracks(itrack,c)!=trackID){
3061 tracks[trackindex] = fgLayers[l].GetClusterTracks(itrack,c);
e43c066c 3062 trackindex++;
3063 }
3064 }
3065 }
3066 if (trackindex==0) return -1;
3067 if (trackindex==1){
3068 sharedtrack = tracks[0];
3069 }else{
3070 if (trackindex==2) sharedtrack =TMath::Min(tracks[0],tracks[1]);
3071 else{
3072 //
a5d0fae6 3073 Int_t tracks2[24], cluster[24];
3074 for (Int_t i=0;i<trackindex;i++){ tracks2[i]=-1; cluster[i]=0;}
e43c066c 3075 Int_t index =0;
3076 //
3077 for (Int_t i=0;i<trackindex;i++){
3078 if (tracks[i]<0) continue;
a5d0fae6 3079 tracks2[index] = tracks[i];
e43c066c 3080 cluster[index]++;
3081 for (Int_t j=i+1;j<trackindex;j++){
3082 if (tracks[j]<0) continue;
3083 if (tracks[j]==tracks[i]){
3084 cluster[index]++;
3085 tracks[j]=-1;
3086 }
3087 }
3088 index++;
3089 }
3090 Int_t max=0;
3091 for (Int_t i=0;i<index;i++){
3092 if (cluster[index]>max) {
a5d0fae6 3093 sharedtrack=tracks2[index];
e43c066c 3094 max=cluster[index];
3095 }
3096 }
3097 }
3098 }
3099
3100 if (sharedtrack>=100000) return -1;
3101 //
3102 // make list of overlaps
3103 shared =0;
3104 for (Int_t icluster=0;icluster<6;icluster++){
3105 if (clusterlist[icluster]<0) continue;
3106 Int_t index = clusterlist[icluster];
3107 Int_t l=(index & 0xf0000000) >> 28;
3108 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 3109 if (c>fgLayers[l].GetNumberOfClusters()) continue;
00a7cc50 3110 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 3111 if (l==0 || l==1){
3112 if (cl->GetNy()>2) continue;
3113 if (cl->GetNz()>2) continue;
3114 }
3115 if (l==4 || l==5){
3116 if (cl->GetNy()>3) continue;
3117 if (cl->GetNz()>3) continue;
3118 }
3119 //
3120 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 3121 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
3122 if (fgLayers[l].GetClusterTracks(itrack,c)==sharedtrack){
e43c066c 3123 overlist[l]=index;
3124 shared++;
3125 }
3126 }
3127 }
3128 return sharedtrack;
3129}
44347160 3130//------------------------------------------------------------------------
04315dad 3131AliITStrackMI * AliITStrackerMI::GetBest2Tracks(Int_t trackID1, Int_t trackID2, Float_t th0, Float_t th1,AliITStrackMI* original){
e43c066c 3132 //
3133 // try to find track hypothesys without conflicts
3134 // with minimal chi2;
3135 TClonesArray *arr1 = (TClonesArray*)fTrackHypothesys.At(trackID1);
3136 Int_t entries1 = arr1->GetEntriesFast();
3137 TClonesArray *arr2 = (TClonesArray*)fTrackHypothesys.At(trackID2);
15dd636f 3138 if (!arr2) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 3139 Int_t entries2 = arr2->GetEntriesFast();
15dd636f 3140 if (entries2<=0) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 3141 //
15dd636f 3142 AliITStrackMI * track10=(AliITStrackMI*) arr1->UncheckedAt(0);
3143 AliITStrackMI * track20=(AliITStrackMI*) arr2->UncheckedAt(0);
6c23ffed 3144 if (track10->Pt()>0.5+track20->Pt()) return track10;
a4354152 3145 //
e43c066c 3146 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 3147 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 3148 UnRegisterClusterTracks(track,trackID1);
3149 }
3150 //
3151 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 3152 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 3153 UnRegisterClusterTracks(track,trackID2);
3154 }
3155 Int_t index1=0;
3156 Int_t index2=0;
3157 Float_t maxconflicts=6;
3158 Double_t maxchi2 =1000.;
3159 //
3160 // get weight of hypothesys - using best hypothesy
3161 Double_t w1,w2;
3162
3163 Int_t list1[6],list2[6];
00a7cc50 3164 AliITSRecPoint *clist1[6], *clist2[6] ;
e43c066c 3165 RegisterClusterTracks(track10,trackID1);
3166 RegisterClusterTracks(track20,trackID2);
3167 Float_t conflict1 = GetNumberOfSharedClusters(track10,trackID1,list1,clist1);
3168 Float_t conflict2 = GetNumberOfSharedClusters(track20,trackID2,list2,clist2);
3169 UnRegisterClusterTracks(track10,trackID1);
3170 UnRegisterClusterTracks(track20,trackID2);
3171 //
3172 // normalized chi2
3173 Float_t chi21 =0,chi22=0,ncl1=0,ncl2=0;
3174 Float_t nerry[6],nerrz[6];
3175 Float_t *erry1=GetErrY(trackID1),*errz1 = GetErrZ(trackID1);
3176 Float_t *erry2=GetErrY(trackID2),*errz2 = GetErrZ(trackID2);
3177 for (Int_t i=0;i<6;i++){
3178 if ( (erry1[i]>0) && (erry2[i]>0)) {
3179 nerry[i] = TMath::Min(erry1[i],erry2[i]);
3180 nerrz[i] = TMath::Min(errz1[i],errz2[i]);
3181 }else{
3182 nerry[i] = TMath::Max(erry1[i],erry2[i]);
3183 nerrz[i] = TMath::Max(errz1[i],errz2[i]);
3184 }
b9671574 3185 if (TMath::Abs(track10->GetDy(i))>0.000000000000001){
3186 chi21 += track10->GetDy(i)*track10->GetDy(i)/(nerry[i]*nerry[i]);
3187 chi21 += track10->GetDz(i)*track10->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 3188 ncl1++;
3189 }
b9671574 3190 if (TMath::Abs(track20->GetDy(i))>0.000000000000001){
3191 chi22 += track20->GetDy(i)*track20->GetDy(i)/(nerry[i]*nerry[i]);
3192 chi22 += track20->GetDz(i)*track20->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 3193 ncl2++;
3194 }
3195 }
3196 chi21/=ncl1;
3197 chi22/=ncl2;
3198 //
3199 //
b9671574 3200 Float_t d1 = TMath::Sqrt(track10->GetD(0)*track10->GetD(0)+track10->GetD(1)*track10->GetD(1))+0.1;
3201 Float_t d2 = TMath::Sqrt(track20->GetD(0)*track20->GetD(0)+track20->GetD(1)*track20->GetD(1))+0.1;
e43c066c 3202 Float_t s1 = TMath::Sqrt(track10->GetSigmaY2()*track10->GetSigmaZ2());
3203 Float_t s2 = TMath::Sqrt(track20->GetSigmaY2()*track20->GetSigmaZ2());
3204 //
3205 w1 = (d2/(d1+d2)+ 2*s2/(s1+s2)+
3206 +s2/(s1+s2)*0.5*(chi22+2.)/(chi21+chi22+4.)
6c23ffed 3207 +1.*track10->Pt()/(track10->Pt()+track20->Pt())
e43c066c 3208 );
3209 w2 = (d1/(d1+d2)+ 2*s1/(s1+s2)+
3210 s1/(s1+s2)*0.5*(chi21+2.)/(chi21+chi22+4.)
6c23ffed 3211 +1.*track20->Pt()/(track10->Pt()+track20->Pt())
e43c066c 3212 );
3213
3214 Double_t sumw = w1+w2;
3215 w1/=sumw;
3216 w2/=sumw;
3217 if (w1<w2*0.5) {
3218 w1 = (d2+0.5)/(d1+d2+1.);
3219 w2 = (d1+0.5)/(d1+d2+1.);
3220 }
3221 // Float_t maxmax = w1*track10->fChi2MIP[0]+w2*track20->fChi2MIP[0]+w1*conflict1+w2*conflict2+1.;
3222 //Float_t maxconflicts0 = w1*conflict1+w2*conflict2;
3223 //
3224 // get pair of "best" hypothesys
3225 //
3226 Float_t * ny1 = GetNy(trackID1), * nz1 = GetNz(trackID1);
3227 Float_t * ny2 = GetNy(trackID2), * nz2 = GetNz(trackID2);
3228
3229 for (Int_t itrack1=0;itrack1<entries1;itrack1++){
15dd636f 3230 AliITStrackMI * track1=(AliITStrackMI*) arr1->UncheckedAt(itrack1);
e43c066c 3231 //if (track1->fFakeRatio>0) continue;
3232 RegisterClusterTracks(track1,trackID1);
3233 for (Int_t itrack2=0;itrack2<entries2;itrack2++){
15dd636f 3234 AliITStrackMI * track2=(AliITStrackMI*) arr2->UncheckedAt(itrack2);
e43c066c 3235
3236 // Float_t current = w1*track1->fChi2MIP[0]+w2*track2->fChi2MIP[0];
3237 //if (track2->fFakeRatio>0) continue;
3238 Float_t nskipped=0;
3239 RegisterClusterTracks(track2,trackID2);
e43c066c 3240 Float_t cconflict1 = GetNumberOfSharedClusters(track1,trackID1,list1,clist1);
3241 Float_t cconflict2 = GetNumberOfSharedClusters(track2,trackID2,list2,clist2);
3242 UnRegisterClusterTracks(track2,trackID2);
3243 //
b9671574 3244 if (track1->GetConstrain()) nskipped+=w1*track1->GetNSkipped();
3245 if (track2->GetConstrain()) nskipped+=w2*track2->GetNSkipped();
e43c066c 3246 if (nskipped>0.5) continue;
3247 //
3248 //if ( w1*conflict1+w2*conflict2>maxconflicts0) continue;
3249 if (conflict1+1<cconflict1) continue;
3250 if (conflict2+1<cconflict2) continue;
3251 Float_t conflict=0;
3252 Float_t sumchi2=0;
3253 Float_t sum=0;
3254 for (Int_t i=0;i<6;i++){
3255 //
3256 Float_t c1 =0.; // conflict coeficients
3257 Float_t c2 =0.;
3258 if (clist1[i]&&clist2[i]){
3259 Float_t deltan = 0;
3260 if (i<2 || i>3){
3261 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-TMath::Max(ny1[i],ny2[i])-TMath::Max(nz1[i],nz2[i]));
3262 }
3263 else{
3264 deltan = (clist1[i]->GetNz()-TMath::Max(nz1[i],nz2[i]));
3265 }
3266 c1 = 2./TMath::Max(3.+deltan,2.);
3267 c2 = 2./TMath::Max(3.+deltan,2.);
3268 }
3269 else{
3270 if (clist1[i]){
3271 Float_t deltan = 0;
3272 if (i<2 || i>3){
3273 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-ny1[i]-nz1[i]);
3274 }
3275 else{
3276 deltan = (clist1[i]->GetNz()-nz1[i]);
3277 }
3278 c1 = 2./TMath::Max(3.+deltan,2.);
3279 c2 = 0;
3280 }
3281
3282 if (clist2[i]){
3283 Float_t deltan = 0;
3284 if (i<2 || i>3){
3285 deltan = (clist2[i]->GetNy()+clist2[i]->GetNz()-ny2[i]-nz2[i]);
3286 }
3287 else{
3288 deltan = (clist2[i]->GetNz()-nz2[i]);
3289 }
3290 c2 = 2./TMath::Max(3.+deltan,2.);
3291 c1 = 0;
3292 }
3293 }
3294 //
a5d0fae6 3295 chi21=0;chi22=0;
b9671574 3296 if (TMath::Abs(track1->GetDy(i))>0.) {
3297 chi21 = (track1->GetDy(i)/track1->GetSigmaY(i))*(track1->GetDy(i)/track1->GetSigmaY(i))+
3298 (track1->GetDz(i)/track1->GetSigmaZ(i))*(track1->GetDz(i)/track1->GetSigmaZ(i));
e43c066c 3299 //chi21 = (track1->fDy[i]*track1->fDy[i])/(nerry[i]*nerry[i])+
b9671574 3300 // (track1->GetDz(i)*track1->GetDz(i))/(nerrz[i]*nerrz[i]);
e43c066c 3301 }else{
b9671574 3302 if (TMath::Abs(track1->GetSigmaY(i)>0.)) c1=1;
e43c066c 3303 }
3304 //
b9671574 3305 if (TMath::Abs(track2->GetDy(i))>0.) {
3306 chi22 = (track2->GetDy(i)/track2->GetSigmaY(i))*(track2->GetDy(i)/track2->GetSigmaY(i))+
3307 (track2->GetDz(i)/track2->GetSigmaZ(i))*(track2->GetDz(i)/track2->GetSigmaZ(i));
e43c066c 3308 //chi22 = (track2->fDy[i]*track2->fDy[i])/(nerry[i]*nerry[i])+
3309 // (track2->fDz[i]*track2->fDz[i])/(nerrz[i]*nerrz[i]);
3310 }
3311 else{
b9671574 3312 if (TMath::Abs(track2->GetSigmaY(i)>0.)) c2=1;
e43c066c 3313 }
3314 sumchi2+=w1*(1.+c1)*(1+c1)*(chi21+c1)+w2*(1.+c2)*(1+c2)*(chi22+c2);
3315 if (chi21>0) sum+=w1;
3316 if (chi22>0) sum+=w2;
3317 conflict+=(c1+c2);
3318 }
b9671574 3319 Double_t norm = sum-w1*track1->GetNSkipped()-w2*track2->GetNSkipped();
3320 if (norm<0) norm =1/(w1*track1->GetNSkipped()+w2*track2->GetNSkipped());
e43c066c 3321 Double_t normchi2 = 2*conflict+sumchi2/sum;
3322 if ( normchi2 <maxchi2 ){
3323 index1 = itrack1;
3324 index2 = itrack2;
3325 maxconflicts = conflict;
3326 maxchi2 = normchi2;
3327 }
3328 }
3329 UnRegisterClusterTracks(track1,trackID1);
3330 }
3331 //
3332 // if (maxconflicts<4 && maxchi2<th0){
3333 if (maxchi2<th0*2.){
b9671574 3334 Float_t orig = track10->GetFakeRatio()*track10->GetNumberOfClusters();
15dd636f 3335 AliITStrackMI* track1=(AliITStrackMI*) arr1->UncheckedAt(index1);
b9671574 3336 track1->SetChi2MIP(5,maxconflicts);
3337 track1->SetChi2MIP(6,maxchi2);
3338 track1->SetChi2MIP(7,0.01+orig-(track1->GetFakeRatio()*track1->GetNumberOfClusters()));
e43c066c 3339 // track1->UpdateESDtrack(AliESDtrack::kITSin);
b9671574 3340 track1->SetChi2MIP(8,index1);
e43c066c 3341 fBestTrackIndex[trackID1] =index1;
3342 UpdateESDtrack(track1, AliESDtrack::kITSin);
04315dad 3343 original->SetWinner(track1);
e43c066c 3344 }
b9671574 3345 else if (track10->GetChi2MIP(0)<th1){
3346 track10->SetChi2MIP(5,maxconflicts);
3347 track10->SetChi2MIP(6,maxchi2);
e43c066c 3348 // track10->UpdateESDtrack(AliESDtrack::kITSin);
3349 UpdateESDtrack(track10,AliESDtrack::kITSin);
04315dad 3350 original->SetWinner(track10);
e43c066c 3351 }
3352
3353 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 3354 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 3355 UnRegisterClusterTracks(track,trackID1);
3356 }
3357 //
3358 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 3359 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 3360 UnRegisterClusterTracks(track,trackID2);
3361 }
3362
44347160 3363 if (track10->GetConstrain()&&track10->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3364 &&track10->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
3365 // if (track10->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3366 // &&track10->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3367 RegisterClusterTracks(track10,trackID1);
3368 }
44347160 3369 if (track20->GetConstrain()&&track20->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3370 &&track20->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
3371 //if (track20->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3372 // &&track20->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3373 RegisterClusterTracks(track20,trackID2);
3374 }
04315dad 3375 return track10;
e43c066c 3376
3377}
44347160 3378//------------------------------------------------------------------------
e43c066c 3379void AliITStrackerMI::UseClusters(const AliKalmanTrack *t, Int_t from) const {
3380 //--------------------------------------------------------------------
3381 // This function marks clusters assigned to the track
3382 //--------------------------------------------------------------------
3383 AliTracker::UseClusters(t,from);
3384
00a7cc50 3385 AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(0));
e43c066c 3386 //if (c->GetQ()>2) c->Use();
3387 if (c->GetSigmaZ2()>0.1) c->Use();
00a7cc50 3388 c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(1));
e43c066c 3389 //if (c->GetQ()>2) c->Use();
3390 if (c->GetSigmaZ2()>0.1) c->Use();
3391
3392}
44347160 3393//------------------------------------------------------------------------
15dd636f 3394void AliITStrackerMI::AddTrackHypothesys(AliITStrackMI * track, Int_t esdindex)
e43c066c 3395{
3396 //------------------------------------------------------------------
3397 // add track to the list of hypothesys
3398 //------------------------------------------------------------------
3399
fddf8459 3400 if (esdindex>=fTrackHypothesys.GetEntriesFast())
3401 fTrackHypothesys.Expand(TMath::Max(fTrackHypothesys.GetSize(),esdindex*2+10));
e43c066c 3402 //
3403 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3404 if (!array) {
3405 array = new TObjArray(10);
3406 fTrackHypothesys.AddAt(array,esdindex);
3407 }
3408 array->AddLast(track);
3409}
44347160 3410//------------------------------------------------------------------------
e43c066c 3411void AliITStrackerMI::SortTrackHypothesys(Int_t esdindex, Int_t maxcut, Int_t mode)
3412{
3413 //-------------------------------------------------------------------
3414 // compress array of track hypothesys
3415 // keep only maxsize best hypothesys
3416 //-------------------------------------------------------------------
3417 if (esdindex>fTrackHypothesys.GetEntriesFast()) return;
3418 if (! (fTrackHypothesys.At(esdindex)) ) return;
3419 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3420 Int_t entries = array->GetEntriesFast();
3421 //
3422 //- find preliminary besttrack as a reference
04315dad 3423 Float_t minchi2=10000;
e43c066c 3424 Int_t maxn=0;
15dd636f 3425 AliITStrackMI * besttrack=0;
a4354152 3426 //
e43c066c 3427 for (Int_t itrack=0;itrack<array->GetEntriesFast();itrack++){
15dd636f 3428 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3429 if (!track) continue;
3430 Float_t chi2 = NormalizedChi2(track,0);
3431 //
b9671574 3432 Int_t tpcLabel=track->GetESDtrack()->GetTPCLabel();
e43c066c 3433 track->SetLabel(tpcLabel);
3434 CookdEdx(track);
b9671574 3435 track->SetFakeRatio(1.);
e43c066c 3436 CookLabel(track,0.); //For comparison only
3437 //
44347160 3438 //if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track->fFakeRatio==0){
3439 if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
e43c066c 3440 if (track->GetNumberOfClusters()<maxn) continue;
3441 maxn = track->GetNumberOfClusters();
a4354152 3442 // if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2 *= track->GetChi2MIP(3); // RS
e43c066c 3443 if (chi2<minchi2){
3444 minchi2=chi2;
3445 besttrack=track;
3446 }
3447 }
3448 else{
b9671574 3449 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3450 delete array->RemoveAt(itrack);
3451 }
e43c066c 3452 }
3453 }
3454 if (!besttrack) return;
3455 //
3456 //
3457 //take errors of best track as a reference
3458 Float_t *erry = GetErrY(esdindex), *errz = GetErrZ(esdindex);
3459 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
a5d0fae6 3460 for (Int_t j=0;j<6;j++) {
9fd412a8 3461 if (besttrack->GetClIndex(j)>=0){
a5d0fae6 3462 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3463 errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
3464 ny[j] = besttrack->GetNy(j);
3465 nz[j] = besttrack->GetNz(j);
e43c066c 3466 }
3467 }
3468 //
3469 // calculate normalized chi2
3470 //
3471 Float_t * chi2 = new Float_t[entries];
3472 Int_t * index = new Int_t[entries];
04315dad 3473 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
e43c066c 3474 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 3475 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3476 if (track){
a4354152 3477 AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters()));
3478 double chi2t = GetNormalizedChi2(track, mode);
3479 track->SetChi2MIP(0,chi2t);
3480 if (chi2t<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) {
3481 if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2t *= track->GetChi2MIP(3); // RS
3482 chi2[itrack] = chi2t;
3483 }
628e7bb0 3484 else{
b9671574 3485 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3486 delete array->RemoveAt(itrack);
3487 }
3488 }
e43c066c 3489 }
3490 }
3491 //
3492 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 3493 besttrack = (AliITStrackMI*)array->At(index[0]);
bf1cd124 3494 if(besttrack) AliDebug(2,Form("ncls best track %d\n",besttrack->GetNumberOfClusters()));
44347160 3495 if (besttrack&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
a5d0fae6 3496 for (Int_t j=0;j<6;j++){
9fd412a8 3497 if (besttrack->GetClIndex(j)>=0){
a5d0fae6 3498 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3499 errz[j] = besttrack->GetSigmaZ(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3500 ny[j] = besttrack->GetNy(j);
3501 nz[j] = besttrack->GetNz(j);
e43c066c 3502 }
3503 }
3504 }
3505 //
3506 // calculate one more time with updated normalized errors
04315dad 3507 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
e43c066c 3508 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 3509 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3510 if (track){
a4354152 3511 double chi2t = GetNormalizedChi2(track, mode);
3512 track->SetChi2MIP(0,chi2t);
bf1cd124 3513 AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters()));
a4354152 3514 if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) {
3515 if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2t *= track->GetChi2MIP(3); // RS
3516 chi2[itrack] = chi2t; //-0*(track->GetNumberOfClusters()+track->GetNDeadZone());
3517 }
3518 else {
3519 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
3520 delete array->RemoveAt(itrack);
628e7bb0 3521 }
a4354152 3522 }
e43c066c 3523 }
3524 }
3525 entries = array->GetEntriesFast();
3526 //
628e7bb0 3527 //
e43c066c 3528 if (entries>0){
3529 TObjArray * newarray = new TObjArray();
3530 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 3531 besttrack = (AliITStrackMI*)array->At(index[0]);
e43c066c 3532 if (besttrack){
bf1cd124 3533 AliDebug(2,Form("ncls best track %d %f %f\n",besttrack->GetNumberOfClusters(),besttrack->GetChi2MIP(0),chi2[index[0]]));
e43c066c 3534 //
a5d0fae6 3535 for (Int_t j=0;j<6;j++){
3536 if (besttrack->GetNz(j)>0&&besttrack->GetNy(j)>0){
3537 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3538 errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
3539 ny[j] = besttrack->GetNy(j);
3540 nz[j] = besttrack->GetNz(j);
e43c066c 3541 }
3542 }
b9671574 3543 besttrack->SetChi2MIP(0,GetNormalizedChi2(besttrack,mode));
a5d0fae6 3544 minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)));
e43c066c 3545 Float_t minn = besttrack->GetNumberOfClusters()-3;
3546 Int_t accepted=0;
3547 for (Int_t i=0;i<entries;i++){
15dd636f 3548 AliITStrackMI * track = (AliITStrackMI*)array->At(index[i]);
e43c066c 3549 if (!track) continue;
3550 if (accepted>maxcut) break;
b9671574 3551 track->SetChi2MIP(0,GetNormalizedChi2(track,mode));
3552 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
3553 if (track->GetNumberOfClusters()<6 && (track->GetChi2MIP(0)+track->GetNUsed()>minchi2)){
628e7bb0 3554 delete array->RemoveAt(index[i]);
3555 continue;
3556 }
e43c066c 3557 }
b9671574 3558 Bool_t shortbest = !track->GetConstrain() && track->GetNumberOfClusters()<6;
3559 if ((track->GetChi2MIP(0)+track->GetNUsed()<minchi2 && track->GetNumberOfClusters()>=minn) ||shortbest){
628e7bb0 3560 if (!shortbest) accepted++;
e43c066c 3561 //
3562 newarray->AddLast(array->RemoveAt(index[i]));
a5d0fae6 3563 for (Int_t j=0;j<6;j++){
3564 if (nz[j]==0){
3565 erry[j] = track->GetSigmaY(j); erry[j+6] = track->GetSigmaY(j+6);
3566 errz[j] = track->GetSigmaZ(j); errz[j] = track->GetSigmaZ(j+6);
3567 ny[j] = track->GetNy(j);
3568 nz[j] = track->GetNz(j);
e43c066c 3569 }
3570 }
3571 }
3572 else{
3573 delete array->RemoveAt(index[i]);
3574 }
3575 }
3576 array->Delete();
3577 delete fTrackHypothesys.RemoveAt(esdindex);
3578 fTrackHypothesys.AddAt(newarray,esdindex);
3579 }
3580 else{
3581 array->Delete();
3582 delete fTrackHypothesys.RemoveAt(esdindex);
3583 }
3584 }
3585 delete [] chi2;
3586 delete [] index;
3587}
44347160 3588//------------------------------------------------------------------------
15dd636f 3589AliITStrackMI * AliITStrackerMI::GetBestHypothesys(Int_t esdindex, AliITStrackMI * original, Int_t checkmax)
e43c066c 3590{
3591 //-------------------------------------------------------------
3592 // try to find best hypothesy
3593 // currently - minimal chi2 of track+backpropagated track+matching to the tpc track
a4354152 3594 // RS: optionally changing this to product of Chi2MIP(0)*Chi2MIP(3) == (chi2*chi2_interpolated)
e43c066c 3595 //-------------------------------------------------------------
3596 if (fTrackHypothesys.GetEntriesFast()<=esdindex) return 0;
3597 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3598 if (!array) return 0;
3599 Int_t entries = array->GetEntriesFast();
3600 if (!entries) return 0;
04315dad 3601 Float_t minchi2 = 100000;
15dd636f 3602 AliITStrackMI * besttrack=0;
e43c066c 3603 //
15dd636f 3604 AliITStrackMI * backtrack = new AliITStrackMI(*original);
3605 AliITStrackMI * forwardtrack = new AliITStrackMI(*original);
afd25725 3606 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
3607 Double_t ersVtx[]={GetSigmaX()/3.,GetSigmaY()/3.,GetSigmaZ()/3.};
e43c066c 3608 //
3609 for (Int_t i=0;i<entries;i++){
15dd636f 3610 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3611 if (!track) continue;
628e7bb0 3612 Float_t sigmarfi,sigmaz;
3613 GetDCASigma(track,sigmarfi,sigmaz);
b9671574 3614 track->SetDnorm(0,sigmarfi);
3615 track->SetDnorm(1,sigmaz);
628e7bb0 3616 //
b9671574 3617 track->SetChi2MIP(1,1000000);
3618 track->SetChi2MIP(2,1000000);
3619 track->SetChi2MIP(3,1000000);
e43c066c 3620 //
3621 // backtrack
15dd636f 3622 backtrack = new(backtrack) AliITStrackMI(*track);
afd25725 3623 if (track->GetConstrain()) {
e50912db 3624 if (!CorrectForPipeMaterial(backtrack,"inward")) continue;
333d86cb 3625 if (AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
a4354152 3626 if (fUseImproveKalman) {if (!backtrack->ImproveKalman(xyzVtx,ersVtx,0,0,0)) continue;}
3627 else {if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue;}
333d86cb 3628 }
6c94f330 3629 backtrack->ResetCovariance(10.);
628e7bb0 3630 }else{
6c94f330 3631 backtrack->ResetCovariance(10.);
628e7bb0 3632 }
e43c066c 3633 backtrack->ResetClusters();
628e7bb0 3634
e43c066c 3635 Double_t x = original->GetX();
3636 if (!RefitAt(x,backtrack,track)) continue;
628e7bb0 3637 //
b9671574 3638 track->SetChi2MIP(1,NormalizedChi2(backtrack,0));
e43c066c 3639 //for (Int_t i=2;i<6;i++){track->fDy[i]+=backtrack->fDy[i]; track->fDz[i]+=backtrack->fDz[i];}
44347160 3640 if (track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)*6.) continue;
b9671574 3641 track->SetChi22(GetMatchingChi2(backtrack,original));
e43c066c 3642
b9671574 3643 if ((track->GetConstrain()) && track->GetChi22()>90.) continue;
3644 if ((!track->GetConstrain()) && track->GetChi22()>30.) continue;
3645 if ( track->GetChi22()/track->GetNumberOfClusters()>11.) continue;
e43c066c 3646
3647
44347160 3648 if (!(track->GetConstrain())&&track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)) continue;
e43c066c 3649 //
3650 //forward track - without constraint
15dd636f 3651 forwardtrack = new(forwardtrack) AliITStrackMI(*original);
e43c066c 3652 forwardtrack->ResetClusters();
3653 x = track->GetX();
a4354152 3654 if (!RefitAt(x,forwardtrack,track) && fSelectBestMIP03) continue; // w/o fwd track MIP03 is meaningless
b9671574 3655 track->SetChi2MIP(2,NormalizedChi2(forwardtrack,0));
44347160 3656 if (track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)*6.0) continue;
3657 if (!(track->GetConstrain())&&track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)) continue;
e43c066c 3658
791f9a2a 3659 //track->fD[0] = forwardtrack->GetD(GetX(),GetY());
3660 //track->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3661 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),track->GetDP()); //I.B.
3662 forwardtrack->SetD(0,track->GetD(0));
3663 forwardtrack->SetD(1,track->GetD(1));
e43c066c 3664 {
3665 Int_t list[6];
00a7cc50 3666 AliITSRecPoint* clist[6];
b9671574 3667 track->SetChi2MIP(4,GetNumberOfSharedClusters(track,esdindex,list,clist));
3668 if ( (!track->GetConstrain()) && track->GetChi2MIP(4)>1.0) continue;
e43c066c 3669 }
3670
b9671574 3671 track->SetChi2MIP(3,GetInterpolatedChi2(forwardtrack,backtrack));
44347160 3672 if ( (track->GetChi2MIP(3)>6.*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) continue;
3673 if ( (!track->GetConstrain()) && (track->GetChi2MIP(3)>2*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) {
b9671574 3674 track->SetChi2MIP(3,1000);
e43c066c 3675 continue;
3676 }
a4354152 3677 Double_t chi2 = track->GetChi2MIP(0); // +track->GetNUsed(); //RS
3678 if (fSelectBestMIP03) chi2 *= track->GetChi2MIP(3);
04315dad 3679 else chi2 += track->GetNUsed();
e43c066c 3680 //
3681 for (Int_t ichi=0;ichi<5;ichi++){
b9671574 3682 forwardtrack->SetChi2MIP(ichi, track->GetChi2MIP(ichi));
e43c066c 3683 }
3684 if (chi2 < minchi2){
15dd636f 3685 //besttrack = new AliITStrackMI(*forwardtrack);
99c2ee26 3686 besttrack = track;
e43c066c 3687 besttrack->SetLabel(track->GetLabel());
b9671574 3688 besttrack->SetFakeRatio(track->GetFakeRatio());
e43c066c 3689 minchi2 = chi2;
791f9a2a 3690 //original->fD[0] = forwardtrack->GetD(GetX(),GetY());
3691 //original->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3692 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),original->GetDP()); //I.B.
e43c066c 3693 }
3694 }
3695 delete backtrack;
3696 delete forwardtrack;
9cd19c63 3697
3698 if (!besttrack) return 0;
3699
e43c066c 3700 Int_t accepted=0;
3701 for (Int_t i=0;i<entries;i++){
fddf8459 3702 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
3703
e43c066c 3704 if (!track) continue;
628e7bb0 3705
44347160 3706 if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. ||
a4354152 3707 (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)
3708 // RS: don't apply this cut when fSelectBestMIP03 is on
3709 || (!fSelectBestMIP03 && (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.))
3710 ){
b9671574 3711 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3712 delete array->RemoveAt(i);
3713 continue;
3714 }
e43c066c 3715 }
3716 else{
3717 accepted++;
3718 }
3719 }
3720 //
3721 array->Compress();
3722 SortTrackHypothesys(esdindex,checkmax,1);
fddf8459 3723
e43c066c 3724 array = (TObjArray*) fTrackHypothesys.At(esdindex);
afdf9b9c 3725 if (!array) return 0; // PH What can be the reason? Check SortTrackHypothesys
15dd636f 3726 besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3727 if (!besttrack) return 0;
b9671574 3728 besttrack->SetChi2MIP(8,0);
e43c066c 3729 fBestTrackIndex[esdindex]=0;
3730 entries = array->GetEntriesFast();
15dd636f 3731 AliITStrackMI *longtrack =0;
e43c066c 3732 minchi2 =1000;
b9671574 3733 Float_t minn=besttrack->GetNumberOfClusters()+besttrack->GetNDeadZone();
6518a6c5 3734 for (Int_t itrack=entries-1;itrack>0;itrack--) {
15dd636f 3735 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
b9671574 3736 if (!track->GetConstrain()) continue;
3737 if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue;
3738 if (track->GetChi2MIP(0)-besttrack->GetChi2MIP(0)>0.0) continue;
3739 if (track->GetChi2MIP(0)>4.) continue;
3740 minn = track->GetNumberOfClusters()+track->GetNDeadZone();
e43c066c 3741 longtrack =track;
3742 }
3743 //if (longtrack) besttrack=longtrack;
a4354152 3744 //
3745 // RS do shared cluster analysis here only if the new sharing analysis is not requested
04315dad 3746 //RRR if (fFlagFakes) return besttrack;
e43c066c 3747
3748 Int_t list[6];
00a7cc50 3749 AliITSRecPoint * clist[6];
e43c066c 3750 Float_t shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
44347160 3751 if (besttrack->GetConstrain()&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&besttrack->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3752 &&besttrack->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&besttrack->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3753 RegisterClusterTracks(besttrack,esdindex);
3754 }
3755 //
3756 //
3757 if (shared>0.0){
3758 Int_t nshared;
3759 Int_t overlist[6];
3760 Int_t sharedtrack = GetOverlapTrack(besttrack, esdindex, nshared, list, overlist);
3761 if (sharedtrack>=0){
3762 //
04315dad 3763 besttrack = GetBest2Tracks(esdindex,sharedtrack,10,5.5,original);
e43c066c 3764 if (besttrack){
3765 shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
3766 }
3767 else return 0;
3768 }
3769 }
3770
3771 if (shared>2.5) return 0;
3772 if (shared>1.0) return besttrack;
3773 //
628e7bb0 3774 // Don't sign clusters if not gold track
3775 //
3776 if (!besttrack->IsGoldPrimary()) return besttrack;
b9671574 3777 if (besttrack->GetESDtrack()->GetKinkIndex(0)!=0) return besttrack; //track belong to kink
628e7bb0 3778 //
e43c066c 3779 if (fConstraint[fPass]){
3780 //
3781 // sign clusters
3782 //
3783 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
3784 for (Int_t i=0;i<6;i++){
b9671574 3785 Int_t index = besttrack->GetClIndex(i);
9fd412a8 3786 if (index<0) continue;
e43c066c 3787 Int_t ilayer = (index & 0xf0000000) >> 28;
b9671574 3788 if (besttrack->GetSigmaY(ilayer)<0.00000000001) continue;
00a7cc50 3789 AliITSRecPoint *c = (AliITSRecPoint*)GetCluster(index);
e43c066c 3790 if (!c) continue;
3791 if (ilayer>3&&c->GetNy()+c->GetNz()>6) continue;
3792 if ( (c->GetNy()+c->GetNz() )> ny[i]+nz[i]+0.7) continue; //shared track
3793 if ( c->GetNz()> nz[i]+0.7) continue; //shared track
572f41f9 3794 if ( ilayer>2&& AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(ilayer))
3795 if (besttrack->GetNormQ(ilayer)/besttrack->GetExpQ()>1.5) continue;
e43c066c 3796 //if ( c->GetNy()> ny[i]+0.7) continue; //shared track
3797
3798 Bool_t cansign = kTRUE;
3799 for (Int_t itrack=0;itrack<entries; itrack++){
15dd636f 3800 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3801 if (!track) continue;
b9671574 3802 if (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*shared+1.) break;
9fd412a8 3803 if ( (track->GetClIndex(ilayer)>=0) && (track->GetClIndex(ilayer)!=besttrack->GetClIndex(ilayer))){
e43c066c 3804 cansign = kFALSE;
3805 break;
3806 }
3807 }
3808 if (cansign){
b9671574 3809 if (TMath::Abs(besttrack->GetDy(ilayer)/besttrack->GetSigmaY(ilayer))>3.) continue;
3810 if (TMath::Abs(besttrack->GetDz(ilayer)/besttrack->GetSigmaZ(ilayer))>3.) continue;
e43c066c 3811 if (!c->IsUsed()) c->Use();
3812 }
3813 }
3814 }
3815 return besttrack;
3816}
44347160 3817//------------------------------------------------------------------------
e43c066c 3818void AliITStrackerMI::GetBestHypothesysMIP(TObjArray &itsTracks)
3819{
3820 //
3821 // get "best" hypothesys
628e7bb0 3822 //
e43c066c 3823
3824 Int_t nentries = itsTracks.GetEntriesFast();
3825 for (Int_t i=0;i<nentries;i++){
15dd636f 3826 AliITStrackMI* track = (AliITStrackMI*)itsTracks.At(i);
e43c066c 3827 if (!track) continue;
3828 TObjArray * array = (TObjArray*) fTrackHypothesys.At(i);
3829 if (!array) continue;
3830 if (array->GetEntriesFast()<=0) continue;
3831 //
15dd636f 3832 AliITStrackMI* longtrack=0;
e43c066c 3833 Float_t minn=0;
04315dad 3834 Float_t maxchi2=1000;
e43c066c 3835 for (Int_t j=0;j<array->GetEntriesFast();j++){
a5d0fae6 3836 AliITStrackMI* trackHyp = (AliITStrackMI*)array->At(j);
3837 if (!trackHyp) continue;
3838 if (trackHyp->GetGoldV0()) {
3839 longtrack = trackHyp; //gold V0 track taken
628e7bb0 3840 break;
3841 }
a5d0fae6 3842 if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()<minn) continue;
3843 Float_t chi2 = trackHyp->GetChi2MIP(0);
a4354152 3844 if (fSelectBestMIP03) chi2 *= trackHyp->GetChi2MIP(3);
3845 if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = chi2; //trackHyp->GetChi2MIP(0);
3846 //
3847 if (fAfterV0){ // ??? RS
a5d0fae6 3848 if (!trackHyp->GetGoldV0()&&trackHyp->GetConstrain()==kFALSE) chi2+=5;
628e7bb0 3849 }
628e7bb0 3850 if (chi2 > maxchi2) continue;
a4354152 3851 minn = trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone();
3852 if (fSelectBestMIP03) minn++; // allow next to longest to win
628e7bb0 3853 maxchi2 = chi2;
a5d0fae6 3854 longtrack=trackHyp;
e43c066c 3855 }
628e7bb0 3856 //
3857 //
3858 //
15dd636f 3859 AliITStrackMI * besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3860 if (!longtrack) {longtrack = besttrack;}
3861 else besttrack= longtrack;
628e7bb0 3862 //
afd25725 3863 if (besttrack) {
04315dad 3864 Int_t list[6];
3865 AliITSRecPoint * clist[6];
3866 Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist);
3867 //
3868 track->SetNUsed(shared);
b9671574 3869 track->SetNSkipped(besttrack->GetNSkipped());
3870 track->SetChi2MIP(0,besttrack->GetChi2MIP(0));
04315dad 3871 if (shared>0) {
3872 if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue;
3873 Int_t nshared;
3874 Int_t overlist[6];
e43c066c 3875 //
04315dad 3876 Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist);
3877 //if (sharedtrack==-1) sharedtrack=0;
3878 if (sharedtrack>=0) {
3879 besttrack = GetBest2Tracks(i,sharedtrack,10,5.5,track);
3880 }
3881 }
3882 if (besttrack&&fAfterV0) {
628e7bb0 3883 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
a4354152 3884 track->SetWinner(besttrack);
628e7bb0 3885 }
04315dad 3886 if (besttrack) {
3887 if (fConstraint[fPass]) {
3888 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
3889 track->SetWinner(besttrack);
3890 }
3891 if (besttrack->GetChi2MIP(0)+besttrack->GetNUsed()>1.5 && fConstraint[fPass]) {
9cd19c63 3892 if ( TMath::Abs(besttrack->GetD(0))>0.1 ||
3893 TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE);
3894 }
04315dad 3895 }
a4354152 3896 }
e43c066c 3897 }
3898}
a4354152 3899
3900//------------------------------------------------------------------------
3901void AliITStrackerMI::FlagFakes(TObjArray &itsTracks)
3902{
3903 //
3904 // RS: flag those tracks which are suxpected to have fake clusters
3905 //
3906 const double kThreshPt = 0.5;
3907 AliRefArray *refArr[6];
3908 //
3909 for (int i=0;i<6;i++) {
3910 int ncl = fgLayers[i].GetNumberOfClusters();
3911 refArr[i] = new AliRefArray(ncl,TMath::Min(ncl,1000));
3912 }
3913 Int_t nentries = itsTracks.GetEntriesFast();
3914 //
3915 // fill cluster->track associations
3916 for (Int_t itr=0;itr<nentries;itr++){
3917 AliITStrackMI* track = (AliITStrackMI*)itsTracks.UncheckedAt(itr);
3918 if (!track) continue;
3919 AliITStrackMI* trackITS = track->GetWinner();
3920 if (!trackITS) continue;
3921 for (int il=trackITS->GetNumberOfClusters();il--;) {
3922 int idx = trackITS->GetClusterIndex(il);
3923 Int_t l=(idx & 0xf0000000) >> 28, c=(idx & 0x0fffffff) >> 00;
3924 // if (c>fgLayers[l].GetNumberOfClusters()) continue;
3925 refArr[l]->AddReference(c, itr);
3926 }
3927 }
3928 //
3929 const UInt_t kMaxRef = 100;
3930 UInt_t crefs[kMaxRef];
3931 Int_t ncrefs=0;
3932 // process tracks with shared clusters
3933 for (int itr=0;itr<nentries;itr++){
3934 AliITStrackMI* track0 = (AliITStrackMI*)itsTracks.UncheckedAt(itr);
3935 AliITStrackMI* trackH0 = track0->GetWinner();
3936 if (!trackH0) continue;
3937 AliESDtrack* esd0 = track0->GetESDtrack();
3938 //
3939 for (int il=0;il<trackH0->GetNumberOfClusters();il++) {
3940 int idx = trackH0->GetClusterIndex(il);
3941 Int_t l=(idx & 0xf0000000) >> 28, c=(idx & 0x0fffffff) >> 00;
3942 ncrefs = refArr[l]->GetReferences(c,crefs,kMaxRef);
3943 if (ncrefs<2) continue; // there will be always self-reference, for sharing needs at least 2
3944 esd0->SetITSSharedFlag(l);
3945 for (int ir=ncrefs;ir--;) {
3946 if (int(crefs[ir]) <= itr) continue; // ==:selfreference, <: the same pair will be checked with >
3947 AliITStrackMI* track1 = (AliITStrackMI*)itsTracks.UncheckedAt(crefs[ir]);
3948 AliITStrackMI* trackH1 = track1->GetWinner();
3949 AliESDtrack* esd1 = track1->GetESDtrack();
3950 esd1->SetITSSharedFlag(l);
3951 //
3952 double pt0 = trackH0->Pt(), pt1 = trackH1->Pt(), res = 0.;
3953 if (pt0>kThreshPt && pt0-pt1>0.2+0.2*(pt0-kThreshPt) ) res = -100;
3954 else if (pt1>kThreshPt && pt1-pt0>0.2+0.2*(pt1-kThreshPt) ) res = 100;
3955
3956 // select the one with smallest chi2's product
3957 res += trackH0->GetChi2MIP(0)*trackH0->GetChi2MIP(3);
3958 res -= trackH1->GetChi2MIP(0)*trackH1->GetChi2MIP(3);
3959 //
3960 if (res<0) esd1->SetITSFakeFlag(); // esd0 is winner
3961 else esd0->SetITSFakeFlag(); // esd1 is winner
3962 }
3963 //
3964 }
3965 //
3966 }
3967 //
3968 for (int i=6;i--;) delete refArr[i];
3969}
3970
44347160 3971//------------------------------------------------------------------------
15dd636f 3972void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const {
e43c066c 3973 //--------------------------------------------------------------------
3974 //This function "cooks" a track label. If label<0, this track is fake.
3975 //--------------------------------------------------------------------
3976 Int_t tpcLabel=-1;
3977
d3dbf323 3978 if (track->GetESDtrack()){
3979 tpcLabel = track->GetESDtrack()->GetTPCLabel();
3980 ULong_t trStatus=track->GetESDtrack()->GetStatus();
3981 if(!(trStatus&AliESDtrack::kTPCin)) tpcLabel=track->GetLabel(); // for ITSsa tracks
3982 }
b9671574 3983 track->SetChi2MIP(9,0);
e43c066c 3984 Int_t nwrong=0;
3985 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
3986 Int_t cindex = track->GetClusterIndex(i);
3987 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 3988 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
e43c066c 3989 Int_t isWrong=1;
3990 for (Int_t ind=0;ind<3;ind++){
84a21804 3991 if (cl->GetLabel(ind)==TMath::Abs(tpcLabel)) isWrong=0;
bf1cd124 3992 //AliDebug(2,Form("icl %d ilab %d lab %d",i,ind,cl->GetLabel(ind)));
e43c066c 3993 }
b9671574 3994 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 3995 nwrong+=isWrong;
3996 }
7d43b4c4 3997 Int_t nclusters = track->GetNumberOfClusters();
3998 if (nclusters > 0) //PH Some tracks don't have any cluster
3999 track->SetFakeRatio(double(nwrong)/double(nclusters));
84a21804 4000 if (tpcLabel>0 && track->GetFakeRatio()>wrong) {
4001 track->SetLabel(-tpcLabel);
4002 } else {
4003 track->SetLabel(tpcLabel);
e43c066c 4004 }
9be1d1c7 4005 AliDebug(2,Form(" nls %d wrong %d label %d tpcLabel %d\n",nclusters,nwrong,track->GetLabel(),tpcLabel));
e43c066c 4006
4007}
44347160 4008//------------------------------------------------------------------------
88e3c173 4009void AliITStrackerMI::CookdEdx(AliITStrackMI* track){
4010 //
4011 // Fill the dE/dx in this track
e43c066c 4012 //
b9671574 4013 track->SetChi2MIP(9,0);
e43c066c 4014 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
4015 Int_t cindex = track->GetClusterIndex(i);
4016 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 4017 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
b9671574 4018 Int_t lab = TMath::Abs(track->GetESDtrack()->GetTPCLabel());
e43c066c 4019 Int_t isWrong=1;
4020 for (Int_t ind=0;ind<3;ind++){
4021 if (cl->GetLabel(ind)==lab) isWrong=0;
4022 }
b9671574 4023 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 4024 }
e43c066c 4025 Double_t low=0.;
4026 Double_t up=0.51;
09cf9d66 4027 track->CookdEdx(low,up);
e43c066c 4028}
44347160 4029//------------------------------------------------------------------------
e50912db 4030void AliITStrackerMI::MakeCoefficients(Int_t ntracks){
e43c066c 4031 //
a70ed6ad 4032 // Create some arrays
e43c066c 4033 //
afd25725 4034 if (fCoefficients) delete []fCoefficients;
4035 fCoefficients = new Float_t[ntracks*48];
4036 for (Int_t i=0;i<ntracks*48;i++) fCoefficients[i]=-1.;
e43c066c 4037}
44347160 4038//------------------------------------------------------------------------
00a7cc50 4039Double_t AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
e43c066c 4040{
4041 //
a70ed6ad 4042 // Compute predicted chi2
e43c066c 4043 //
242bd643 4044 // Take into account the mis-alignment (bring track to cluster plane)
4045 Double_t xTrOrig=track->GetX();
4046 if (!track->Propagate(xTrOrig+cluster->GetX())) return 1000.;
d9ead1a0 4047 Float_t erry,errz,covyz;
e43c066c 4048 Float_t theta = track->GetTgl();
4049 Float_t phi = track->GetSnp();
242bd643 4050 phi *= TMath::Sqrt(1./((1.-phi)*(1.+phi)));
d9ead1a0 4051 AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz,covyz);
4187a601 4052 AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX()));
4187a601 4053 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 4054 Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz,covyz);
1c97ce2f 4055 // Bring the track back to detector plane in ideal geometry
4056 // [mis-alignment will be accounted for in UpdateMI()]
9be1d1c7 4057 if (!track->Propagate(xTrOrig)) return 1000.;
e43c066c 4058 Float_t ny,nz;
e50912db 4059 AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz);
e43c066c 4060 Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny;
4061 if (delta>1){
4062 chi2+=0.5*TMath::Min(delta/2,2.);
4063 chi2+=2.*cluster->GetDeltaProbability();
4064 }
4065 //
b9671574 4066 track->SetNy(layer,ny);
4067 track->SetNz(layer,nz);
4068 track->SetSigmaY(layer,erry);
4069 track->SetSigmaZ(layer, errz);
d9ead1a0 4070 track->SetSigmaYZ(layer,covyz);
e43c066c 4071 //track->fNormQ[layer] = cluster->GetQ()/TMath::Sqrt(1+theta*theta+phi*phi);
60e55aee 4072 track->SetNormQ(layer,cluster->GetQ()/TMath::Sqrt((1.+ track->GetTgl()*track->GetTgl())/((1.-track->GetSnp())*(1.+track->GetSnp()))));
e43c066c 4073 return chi2;
4074
4075}
e50912db 4076//------------------------------------------------------------------------
4077Int_t AliITStrackerMI::UpdateMI(AliITStrackMI* track, const AliITSRecPoint* cl,Double_t chi2,Int_t index) const
e43c066c 4078{
4079 //
a70ed6ad 4080 // Update ITS track
e43c066c 4081 //
4082 Int_t layer = (index & 0xf0000000) >> 28;
b9671574 4083 track->SetClIndex(layer, index);
572f41f9 4084 if (layer>1&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(layer)) {
4085 if (track->GetNormQ(layer)/track->GetExpQ()<0.5 ) {
4086 chi2+= (0.5-track->GetNormQ(layer)/track->GetExpQ())*10.;
4087 track->SetdEdxMismatch(track->GetdEdxMismatch()+(0.5-track->GetNormQ(layer)/track->GetExpQ())*10.);
4088 }
e43c066c 4089 }
a504d56f 4090
88e3c173 4091 if (TMath::Abs(cl->GetQ())<1.e-13) return 0; // ingore the "virtual" clusters
a504d56f 4092
afd25725 4093
1c97ce2f 4094 // Take into account the mis-alignment (bring track to cluster plane)
4095 Double_t xTrOrig=track->GetX();
4187a601 4096 Float_t clxyz[3]; cl->GetGlobalXYZ(clxyz);Double_t trxyz[3]; track->GetXYZ(trxyz);
4097 AliDebug(2,Form("gtr %f %f %f",trxyz[0],trxyz[1],trxyz[2]));
4098 AliDebug(2,Form("gcl %f %f %f",clxyz[0],clxyz[1],clxyz[2]));
4099 AliDebug(2,Form(" xtr %f xcl %f",track->GetX(),cl->GetX()));
fddf8459 4100
9be1d1c7 4101 if (!track->Propagate(xTrOrig+cl->GetX())) return 0;
1f3e997f 4102
150f264c 4103 AliCluster c(*cl);
4104 c.SetSigmaY2(track->GetSigmaY(layer)*track->GetSigmaY(layer));
4105 c.SetSigmaZ2(track->GetSigmaZ(layer)*track->GetSigmaZ(layer));
d9ead1a0 4106 c.SetSigmaYZ(track->GetSigmaYZ(layer));
150f264c 4107
1c97ce2f 4108
4109 Int_t updated = track->UpdateMI(&c,chi2,index);
1c97ce2f 4110 // Bring the track back to detector plane in ideal geometry
9be1d1c7 4111 if (!track->Propagate(xTrOrig)) return 0;
d9ead1a0 4112
4187a601 4113 if(!updated) AliDebug(2,"update failed");
1c97ce2f 4114 return updated;
e43c066c 4115}
150f264c 4116
44347160 4117//------------------------------------------------------------------------
a70ed6ad 4118void AliITStrackerMI::GetDCASigma(const AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz)
628e7bb0 4119{
4120 //
4121 //DCA sigmas parameterization
4122 //to be paramterized using external parameters in future
4123 //
4124 //
63126a46 4125 Double_t curv=track->GetC();
4126 sigmarfi = 0.0040+1.4 *TMath::Abs(curv)+332.*curv*curv;
4127 sigmaz = 0.0110+4.37*TMath::Abs(curv);
628e7bb0 4128}
e50912db 4129//------------------------------------------------------------------------
a70ed6ad 4130void AliITStrackerMI::SignDeltas(const TObjArray *clusterArray, Float_t vz)
e43c066c 4131{
4132 //
a70ed6ad 4133 // Clusters from delta electrons?
e43c066c 4134 //
a70ed6ad 4135 Int_t entries = clusterArray->GetEntriesFast();
e43c066c 4136 if (entries<4) return;
a70ed6ad 4137 AliITSRecPoint* cluster = (AliITSRecPoint*)clusterArray->At(0);
e43c066c 4138 Int_t layer = cluster->GetLayer();
4139 if (layer>1) return;
4140 Int_t index[10000];
4141 Int_t ncandidates=0;
4142 Float_t r = (layer>0)? 7:4;
4143 //
4144 for (Int_t i=0;i<entries;i++){
a70ed6ad 4145 AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(i);
e43c066c 4146 Float_t nz = 1+TMath::Abs((cl0->GetZ()-vz)/r);
4147 if (cl0->GetNy()+cl0->GetNz()<=5+2*layer+nz) continue;
4148 index[ncandidates] = i; //candidate to belong to delta electron track
4149 ncandidates++;
4150 if (cl0->GetNy()+cl0->GetNz()>9+2*layer+nz) {
4151 cl0->SetDeltaProbability(1);
4152 }
4153 }
4154 //
4155 //
4156 //
4157 for (Int_t i=0;i<ncandidates;i++){
a70ed6ad 4158 AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(index[i]);
e43c066c 4159 if (cl0->GetDeltaProbability()>0.8) continue;
4160 //
4161 Int_t ncl = 0;
4162 Float_t y[100],z[100],sumy,sumz,sumy2, sumyz, sumw;
4163 sumy=sumz=sumy2=sumyz=sumw=0.0;
4164 for (Int_t j=0;j<ncandidates;j++){
4165 if (i==j) continue;
a70ed6ad 4166 AliITSRecPoint* cl1 = (AliITSRecPoint*)clusterArray->At(index[j]);
e43c066c 4167 //
4168 Float_t dz = cl0->GetZ()-cl1->GetZ();
4169 Float_t dy = cl0->GetY()-cl1->GetY();
4170 if (TMath::Sqrt(dz*dz+dy*dy)<0.2){
4171 Float_t weight = cl1->GetNy()+cl1->GetNz()-2;
4172 y[ncl] = cl1->GetY();
4173 z[ncl] = cl1->GetZ();
4174 sumy+= y[ncl]*weight;
4175 sumz+= z[ncl]*weight;
4176 sumy2+=y[ncl]*y[ncl]*weight;
4177 sumyz+=y[ncl]*z[ncl]*weight;
4178 sumw+=weight;
4179 ncl++;
4180 }
4181 }
4182 if (ncl<4) continue;
4183 Float_t det = sumw*sumy2 - sumy*sumy;
4184 Float_t delta=1000;
4185 if (TMath::Abs(det)>0.01){
4186 Float_t z0 = (sumy2*sumz - sumy*sumyz)/det;
4187 Float_t k = (sumyz*sumw - sumy*sumz)/det;
4188 delta = TMath::Abs(cl0->GetZ()-(z0+k*cl0->GetY()));
4189 }
4190 else{
4191 Float_t z0 = sumyz/sumy;
4192 delta = TMath::Abs(cl0->GetZ()-z0);
4193 }
4194 if ( delta<0.05) {
4195 cl0->SetDeltaProbability(1-20.*delta);
4196 }
4197 }
4198}
44347160 4199//------------------------------------------------------------------------
15dd636f 4200void AliITStrackerMI::UpdateESDtrack(AliITStrackMI* track, ULong_t flags) const
e43c066c 4201{
4202 //
a70ed6ad 4203 // Update ESD track
e43c066c 4204 //
4205 track->UpdateESDtrack(flags);
b9671574 4206 AliITStrackMI * oldtrack = (AliITStrackMI*)(track->GetESDtrack()->GetITStrack());
99c2ee26 4207 if (oldtrack) delete oldtrack;
b9671574 4208 track->GetESDtrack()->SetITStrack(new AliITStrackMI(*track));
5668b5b2 4209 // if (TMath::Abs(track->GetDnorm(1))<0.000000001){
4210 // printf("Problem\n");
4211 // }
e43c066c 4212}
44347160 4213//------------------------------------------------------------------------
81e97e0d 4214Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{
4215 //
ae00569a 4216 // Get nearest upper layer close to the point xr.
81e97e0d 4217 // rough approximation
4218 //
bf6adc12 4219 const Float_t kRadiuses[6]={4,6.5,15.03,24.,38.5,43.7};
81e97e0d 4220 Float_t radius = TMath::Sqrt(xr[0]*xr[0]+xr[1]*xr[1]);
4221 Int_t res =6;
4222 for (Int_t i=0;i<6;i++){
bf6adc12 4223 if (radius<kRadiuses[i]){
81e97e0d 4224 res =i;
4225 break;
4226 }
4227 }
4228 return res;
4229}
44347160 4230//------------------------------------------------------------------------
e50912db 4231void AliITStrackerMI::BuildMaterialLUT(TString material) {
4232 //--------------------------------------------------------------------
4233 // Fill a look-up table with mean material
4234 //--------------------------------------------------------------------
4235
4236 Int_t n=1000;
4237 Double_t mparam[7];
4238 Double_t point1[3],point2[3];
4239 Double_t phi,cosphi,sinphi,z;
4240 // 0-5 layers, 6 pipe, 7-8 shields
1ec3c859 4241 Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 8.0,25.0};
4242 Double_t rmax[9]={ 5.5, 8.0,17.0,26.0,41.0,47.0, 3.0,10.5,30.0};
e50912db 4243
4244 Int_t ifirst=0,ilast=0;
4245 if(material.Contains("Pipe")) {
4246 ifirst=6; ilast=6;
4247 } else if(material.Contains("Shields")) {
4248 ifirst=7; ilast=8;
4249 } else if(material.Contains("Layers")) {
4250 ifirst=0; ilast=5;
4251 } else {
4252 Error("BuildMaterialLUT","Wrong layer name\n");
4253 }
4254
4255 for(Int_t imat=ifirst; imat<=ilast; imat++) {
4256 Double_t param[5]={0.,0.,0.,0.,0.};
4257 for (Int_t i=0; i<n; i++) {
4258 phi = 2.*TMath::Pi()*gRandom->Rndm();
4259 cosphi = TMath::Cos(phi); sinphi = TMath::Sin(phi);
4260 z = 14.*(-1.+2.*gRandom->Rndm()); // SPD barrel
4261 point1[0] = rmin[imat]*cosphi;
4262 point1[1] = rmin[imat]*sinphi;
4263 point1[2] = z;
4264 point2[0] = rmax[imat]*cosphi;
4265 point2[1] = rmax[imat]*sinphi;
4266 point2[2] = z;
4267 AliTracker::MeanMaterialBudget(point1,point2,mparam);
4268 for(Int_t j=0;j<5;j++) param[j]+=mparam[j];
4269 }
4270 for(Int_t j=0;j<5;j++) param[j]/=(Float_t)n;
4271 if(imat<=5) {
4272 fxOverX0Layer[imat] = param[1];
4273 fxTimesRhoLayer[imat] = param[0]*param[4];
4274 } else if(imat==6) {
4275 fxOverX0Pipe = param[1];
4276 fxTimesRhoPipe = param[0]*param[4];
4277 } else if(imat==7) {
4278 fxOverX0Shield[0] = param[1];
4279 fxTimesRhoShield[0] = param[0]*param[4];
4280 } else if(imat==8) {
4281 fxOverX0Shield[1] = param[1];
4282 fxTimesRhoShield[1] = param[0]*param[4];
4283 }
4284 }
4285 /*
4286 printf("%s\n",material.Data());
4287 printf("%f %f\n",fxOverX0Pipe,fxTimesRhoPipe);
4288 printf("%f %f\n",fxOverX0Shield[0],fxTimesRhoShield[0]);
4289 printf("%f %f\n",fxOverX0Shield[1],fxTimesRhoShield[1]);
4290 printf("%f %f\n",fxOverX0Layer[0],fxTimesRhoLayer[0]);
4291 printf("%f %f\n",fxOverX0Layer[1],fxTimesRhoLayer[1]);
4292 printf("%f %f\n",fxOverX0Layer[2],fxTimesRhoLayer[2]);
4293 printf("%f %f\n",fxOverX0Layer[3],fxTimesRhoLayer[3]);
4294 printf("%f %f\n",fxOverX0Layer[4],fxTimesRhoLayer[4]);
4295 printf("%f %f\n",fxOverX0Layer[5],fxTimesRhoLayer[5]);
4296 */
4297 return;
4298}
4299//------------------------------------------------------------------------
4300Int_t AliITStrackerMI::CorrectForPipeMaterial(AliITStrackMI *t,
4301 TString direction) {
4302 //-------------------------------------------------------------------
4303 // Propagate beyond beam pipe and correct for material
4304 // (material budget in different ways according to fUseTGeo value)
7131593b 4305 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4306 //-------------------------------------------------------------------
4307
4308 // Define budget mode:
4309 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4310 // 1: material from TGeo in one step (on the fly)
e50912db 4311 // 2: material from lut
9be1d1c7 4312 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4313 Int_t mode;
4314 switch(fUseTGeo) {
4315 case 0:
4316 mode=0;
4317 break;
4318 case 1:
4319 mode=1;
4320 break;
4321 case 2:
4322 mode=2;
4323 break;
4324 case 3:
4325 if(fTrackingPhase.Contains("Clusters2Tracks"))
4326 { mode=3; } else { mode=1; }
4327 break;
4328 case 4:
4329 if(fTrackingPhase.Contains("Clusters2Tracks"))
4330 { mode=3; } else { mode=2; }
4331 break;
4332 default:
4333 mode=0;
4334 break;
4335 }
4336 if(fTrackingPhase.Contains("Default")) mode=0;
4337
4338 Int_t index=fCurrentEsdTrack;
4339
4340 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4341 Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe());
70e83b26 4342 Double_t xToGo;
4343 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4344
4345 Double_t xOverX0,x0,lengthTimesMeanDensity;
e50912db 4346
4347 switch(mode) {
4348 case 0:
4349 xOverX0 = AliITSRecoParam::GetdPipe();
4350 x0 = AliITSRecoParam::GetX0Be();
4351 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4352 lengthTimesMeanDensity *= dir;
7131593b 4353 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4354 break;
4355 case 1:
4356 if (!t->PropagateToTGeo(xToGo,1)) return 0;
e50912db 4357 break;
4358 case 2:
4359 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
4360 xOverX0 = fxOverX0Pipe;
4361 lengthTimesMeanDensity = fxTimesRhoPipe;
9be1d1c7 4362 lengthTimesMeanDensity *= dir;
7131593b 4363 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4364 break;
4365 case 3:
4366 if(!fxOverX0PipeTrks || index<0 || index>=fNtracks) Error("CorrectForPipeMaterial","Incorrect usage of UseTGeo option!\n");
4367 if(fxOverX0PipeTrks[index]<0) {
4368 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
4369 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4370 ((1.-t->GetSnp())*(1.+t->GetSnp())));
e50912db 4371 fxOverX0PipeTrks[index] = TMath::Abs(xOverX0)/angle;
4372 fxTimesRhoPipeTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4373 return 1;
4374 }
4375 xOverX0 = fxOverX0PipeTrks[index];
4376 lengthTimesMeanDensity = fxTimesRhoPipeTrks[index];
9be1d1c7 4377 lengthTimesMeanDensity *= dir;
7131593b 4378 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4379 break;
4380 }
4381
e50912db 4382 return 1;
4383}
4384//------------------------------------------------------------------------
4385Int_t AliITStrackerMI::CorrectForShieldMaterial(AliITStrackMI *t,
4386 TString shield,
4387 TString direction) {
4388 //-------------------------------------------------------------------
4389 // Propagate beyond SPD or SDD shield and correct for material
4390 // (material budget in different ways according to fUseTGeo value)
7131593b 4391 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4392 //-------------------------------------------------------------------
4393
4394 // Define budget mode:
4395 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4396 // 1: material from TGeo in steps of X cm (on the fly)
4397 // X = AliITSRecoParam::GetStepSizeTGeo()
e50912db 4398 // 2: material from lut
9be1d1c7 4399 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4400 Int_t mode;
4401 switch(fUseTGeo) {
4402 case 0:
4403 mode=0;
4404 break;
4405 case 1:
4406 mode=1;
4407 break;
4408 case 2:
4409 mode=2;
4410 break;
4411 case 3:
4412 if(fTrackingPhase.Contains("Clusters2Tracks"))
4413 { mode=3; } else { mode=1; }
4414 break;
4415 case 4:
4416 if(fTrackingPhase.Contains("Clusters2Tracks"))
4417 { mode=3; } else { mode=2; }
4418 break;
4419 default:
4420 mode=0;
4421 break;
4422 }
4423 if(fTrackingPhase.Contains("Default")) mode=0;
4424
4425 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4426 Double_t rToGo;
4427 Int_t shieldindex=0;
4428 if (shield.Contains("SDD")) { // SDDouter
4429 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(1) : AliITSRecoParam::GetrOutsideShield(1));
4430 shieldindex=1;
4431 } else if (shield.Contains("SPD")) { // SPDouter
4432 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(0) : AliITSRecoParam::GetrOutsideShield(0));
4433 shieldindex=0;
4434 } else {
4435 Error("CorrectForShieldMaterial"," Wrong shield name\n");
e50912db 4436 return 0;
4437 }
67178f34 4438
4439 // do nothing if we are already beyond the shield
4440 Double_t rTrack = TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY());
4441 if(dir<0 && rTrack > rToGo) return 1; // going outward
4442 if(dir>0 && rTrack < rToGo) return 1; // going inward
4443
4444
70e83b26 4445 Double_t xToGo;
4446 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4447
4448 Int_t index=2*fCurrentEsdTrack+shieldindex;
4449
4450 Double_t xOverX0,x0,lengthTimesMeanDensity;
9be1d1c7 4451 Int_t nsteps=1;
e50912db 4452
4453 switch(mode) {
4454 case 0:
4455 xOverX0 = AliITSRecoParam::Getdshield(shieldindex);
4456 x0 = AliITSRecoParam::GetX0shield(shieldindex);
4457 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4458 lengthTimesMeanDensity *= dir;
7131593b 4459 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4460 break;
4461 case 1:
9be1d1c7 4462 nsteps= (Int_t)(TMath::Abs(t->GetX()-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
4463 if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
e50912db 4464 break;
4465 case 2:
4466 if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields");
4467 xOverX0 = fxOverX0Shield[shieldindex];
4468 lengthTimesMeanDensity = fxTimesRhoShield[shieldindex];
9be1d1c7 4469 lengthTimesMeanDensity *= dir;
7131593b 4470 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4471 break;
4472 case 3:
4473 if(!fxOverX0ShieldTrks || index<0 || index>=2*fNtracks) Error("CorrectForShieldMaterial","Incorrect usage of UseTGeo option!\n");
4474 if(fxOverX0ShieldTrks[index]<0) {
4475 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
4476 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4477 ((1.-t->GetSnp())*(1.+t->GetSnp())));
e50912db 4478 fxOverX0ShieldTrks[index] = TMath::Abs(xOverX0)/angle;
4479 fxTimesRhoShieldTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4480 return 1;
4481 }
4482 xOverX0 = fxOverX0ShieldTrks[index];
4483 lengthTimesMeanDensity = fxTimesRhoShieldTrks[index];
9be1d1c7 4484 lengthTimesMeanDensity *= dir;
7131593b 4485 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4486 break;
4487 }
4488
e50912db 4489 return 1;
4490}
4491//------------------------------------------------------------------------
4492Int_t AliITStrackerMI::CorrectForLayerMaterial(AliITStrackMI *t,
4493 Int_t layerindex,
4494 Double_t oldGlobXYZ[3],
4495 TString direction) {
4496 //-------------------------------------------------------------------
4497 // Propagate beyond layer and correct for material
4498 // (material budget in different ways according to fUseTGeo value)
7131593b 4499 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4500 //-------------------------------------------------------------------
4501
4502 // Define budget mode:
4503 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4504 // 1: material from TGeo in stepsof X cm (on the fly)
4505 // X = AliITSRecoParam::GetStepSizeTGeo()
e50912db 4506 // 2: material from lut
9be1d1c7 4507 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4508 Int_t mode;
4509 switch(fUseTGeo) {
4510 case 0:
4511 mode=0;
4512 break;
4513 case 1:
4514 mode=1;
4515 break;
4516 case 2:
4517 mode=2;
4518 break;
4519 case 3:
4520 if(fTrackingPhase.Contains("Clusters2Tracks"))
4521 { mode=3; } else { mode=1; }
4522 break;
4523 case 4:
4524 if(fTrackingPhase.Contains("Clusters2Tracks"))
4525 { mode=3; } else { mode=2; }
4526 break;
4527 default:
4528 mode=0;
4529 break;
4530 }
4531 if(fTrackingPhase.Contains("Default")) mode=0;
4532
4533 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4534
4535 Double_t r=fgLayers[layerindex].GetR();
4536 Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r);
4537
4538 Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir;
70e83b26 4539 Double_t xToGo;
4540 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4541
4542 Int_t index=6*fCurrentEsdTrack+layerindex;
4543
e50912db 4544
4545 Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0;
9be1d1c7 4546 Int_t nsteps=1;
7131593b 4547
4548 // back before material (no correction)
d634c32b 4549 Double_t rOld,xOld;
7131593b 4550 rOld=TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
4551 if (!t->GetLocalXat(rOld,xOld)) return 0;
4552 if (!t->Propagate(xOld)) return 0;
e50912db 4553
4554 switch(mode) {
4555 case 0:
4556 xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0);
4557 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4558 lengthTimesMeanDensity *= dir;
7131593b 4559 // Bring the track beyond the material
4560 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4561 break;
4562 case 1:
9be1d1c7 4563 nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
7131593b 4564 if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
e50912db 4565 break;
4566 case 2:
4567 if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers");
4568 xOverX0 = fxOverX0Layer[layerindex];
4569 lengthTimesMeanDensity = fxTimesRhoLayer[layerindex];
9be1d1c7 4570 lengthTimesMeanDensity *= dir;
7131593b 4571 // Bring the track beyond the material
4572 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4573 break;
4574 case 3:
4575 if(!fxOverX0LayerTrks || index<0 || index>=6*fNtracks) Error("CorrectForLayerMaterial","Incorrect usage of UseTGeo option!\n");
7131593b 4576 if(fxOverX0LayerTrks[index]<0) {
4577 nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
4578 if (!t->PropagateToTGeo(xToGo,nsteps,xOverX0,lengthTimesMeanDensity)) return 0;
e50912db 4579 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4580 ((1.-t->GetSnp())*(1.+t->GetSnp())));
7131593b 4581 fxOverX0LayerTrks[index] = TMath::Abs(xOverX0)/angle;
4582 fxTimesRhoLayerTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4583 return 1;
e50912db 4584 }
4585 xOverX0 = fxOverX0LayerTrks[index];
4586 lengthTimesMeanDensity = fxTimesRhoLayerTrks[index];
9be1d1c7 4587 lengthTimesMeanDensity *= dir;
7131593b 4588 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4589 break;
4590 }
4591
7131593b 4592
e50912db 4593 return 1;
4594}
4595//------------------------------------------------------------------------
4596void AliITStrackerMI::MakeTrksMaterialLUT(Int_t ntracks) {
4597 //-----------------------------------------------------------------
4598 // Initialize LUT for storing material for each prolonged track
4599 //-----------------------------------------------------------------
4600 fxOverX0PipeTrks = new Float_t[ntracks];
4601 fxTimesRhoPipeTrks = new Float_t[ntracks];
4602 fxOverX0ShieldTrks = new Float_t[ntracks*2];
4603 fxTimesRhoShieldTrks = new Float_t[ntracks*2];
4604 fxOverX0LayerTrks = new Float_t[ntracks*6];
4605 fxTimesRhoLayerTrks = new Float_t[ntracks*6];
4606
4607 for(Int_t i=0; i<ntracks; i++) {
4608 fxOverX0PipeTrks[i] = -1.;
4609 fxTimesRhoPipeTrks[i] = -1.;
4610 }
4611 for(Int_t j=0; j<ntracks*2; j++) {
4612 fxOverX0ShieldTrks[j] = -1.;
4613 fxTimesRhoShieldTrks[j] = -1.;
4614 }
4615 for(Int_t k=0; k<ntracks*6; k++) {
4616 fxOverX0LayerTrks[k] = -1.;
4617 fxTimesRhoLayerTrks[k] = -1.;
4618 }
4619
4620 fNtracks = ntracks;
4621
4622 return;
4623}
4624//------------------------------------------------------------------------
4625void AliITStrackerMI::DeleteTrksMaterialLUT() {
4626 //-----------------------------------------------------------------
4627 // Delete LUT for storing material for each prolonged track
4628 //-----------------------------------------------------------------
4629 if(fxOverX0PipeTrks) {
4630 delete [] fxOverX0PipeTrks; fxOverX0PipeTrks = 0;
4631 }
4632 if(fxOverX0ShieldTrks) {
4633 delete [] fxOverX0ShieldTrks; fxOverX0ShieldTrks = 0;
4634 }
4635
4636 if(fxOverX0LayerTrks) {
4637 delete [] fxOverX0LayerTrks; fxOverX0LayerTrks = 0;
4638 }
4639 if(fxTimesRhoPipeTrks) {
4640 delete [] fxTimesRhoPipeTrks; fxTimesRhoPipeTrks = 0;
4641 }
4642 if(fxTimesRhoShieldTrks) {
4643 delete [] fxTimesRhoShieldTrks; fxTimesRhoShieldTrks = 0;
4644 }
4645 if(fxTimesRhoLayerTrks) {
4646 delete [] fxTimesRhoLayerTrks; fxTimesRhoLayerTrks = 0;
4647 }
4648 return;
4649}
4650//------------------------------------------------------------------------
4fa7f7d1 4651void AliITStrackerMI::SetForceSkippingOfLayer() {
4652 //-----------------------------------------------------------------
4653 // Check if we are forced to skip layers
4654 // either we set to skip them in RecoParam
4655 // or they were off during data-taking
4656 //-----------------------------------------------------------------
4657
4658 const AliEventInfo *eventInfo = GetEventInfo();
6262dd3d 4659
4fa7f7d1 4660 for(Int_t l=0; l<AliITSgeomTGeo::kNLayers; l++) {
4661 fForceSkippingOfLayer[l] = 0;
4662 // check reco param
4663 if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(l)) fForceSkippingOfLayer[l] = 1;
4664 // check run info
4665
87b4605f 4666 if(eventInfo &&
4667 AliITSReconstructor::GetRecoParam()->GetSkipSubdetsNotInTriggerCluster()) {
4fa7f7d1 4668 AliDebug(2,Form("GetEventInfo->GetTriggerCluster: %s",eventInfo->GetTriggerCluster()));
4669 if(l==0 || l==1) {
4670 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSPD")) fForceSkippingOfLayer[l] = 1;
4671 } else if(l==2 || l==3) {
4672 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSDD")) fForceSkippingOfLayer[l] = 1;
4673 } else {
4674 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSSD")) fForceSkippingOfLayer[l] = 1;
4675 }
4676 }
4677 }
4678 return;
4679}
4680//------------------------------------------------------------------------
a70ed6ad 4681Int_t AliITStrackerMI::CheckSkipLayer(const AliITStrackMI *track,
6518a6c5 4682 Int_t ilayer,Int_t idet) const {
2755f080 4683 //-----------------------------------------------------------------
4684 // This method is used to decide whether to allow a prolongation
4685 // without clusters, because we want to skip the layer.
4686 // In this case the return value is > 0:
4687 // return 1: the user requested to skip a layer
371164ec 4688 // return 2: track outside z acceptance
2755f080 4689 //-----------------------------------------------------------------
e43c066c 4690
4fa7f7d1 4691 if (ForceSkippingOfLayer(ilayer)) return 1;
51ad6848 4692
371164ec 4693 Int_t innerLayCanSkip=0; // was 2, changed on 05.11.2009
4694
4695 if (idet<0 && // out in z
4696 ilayer>innerLayCanSkip &&
4697 AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance()) {
2755f080 4698 // check if track will cross SPD outer layer
4699 Double_t phiAtSPD2,zAtSPD2;
6518a6c5 4700 if (track->GetPhiZat(fgLayers[1].GetR(),phiAtSPD2,zAtSPD2)) {
2755f080 4701 if (TMath::Abs(zAtSPD2)<2.*AliITSRecoParam::GetSPDdetzlength()) return 2;
4702 }
371164ec 4703 return 2; // always allow skipping, changed on 05.11.2009
2755f080 4704 }
51ad6848 4705
2755f080 4706 return 0;
4707}
4708//------------------------------------------------------------------------
23197852 4709Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track,
ae00569a 4710 Int_t ilayer,Int_t idet,
1c97ce2f 4711 Double_t dz,Double_t dy,
23197852 4712 Bool_t noClusters) const {
6518a6c5 4713 //-----------------------------------------------------------------
4714 // This method is used to decide whether to allow a prolongation
ae00569a 4715 // without clusters, because there is a dead zone in the road.
6518a6c5 4716 // In this case the return value is > 0:
4717 // return 1: dead zone at z=0,+-7cm in SPD
bf1cd124 4718 // This method assumes that fSPDdetzcentre is ordered from -z to +z
23197852 4719 // return 2: all road is "bad" (dead or noisy) from the OCDB
f8720bda 4720 // return 3: at least a chip is "bad" (dead or noisy) from the OCDB
4721 // return 4: at least a single channel is "bad" (dead or noisy) from the OCDB
6518a6c5 4722 //-----------------------------------------------------------------
4723
4724 // check dead zones at z=0,+-7cm in the SPD
4725 if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
4726 Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4727 fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4728 fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()};
4729 Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4730 fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4731 fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()};
4732 for (Int_t i=0; i<3; i++)
4187a601 4733 if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) {
bf1cd124 4734 AliDebug(2,Form("crack SPD %d track z %f %f %f %f\n",ilayer,track->GetZ(),dz,zmaxdead[i],zmindead[i]));
4735 if (GetSPDDeadZoneProbability(track->GetZ(),TMath::Sqrt(track->GetSigmaZ2()))>0.1) return 1;
4187a601 4736 }
6518a6c5 4737 }
4738
23197852 4739 // check bad zones from OCDB
4740 if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0;
ae00569a 4741
23197852 4742 if (idet<0) return 0;
ae00569a 4743
23197852 4744 AliITSdetector &det=fgLayers[ilayer].GetDetector(idet);
4745
23197852 4746 Int_t detType=-1;
4747 Float_t detSizeFactorX=0.0001,detSizeFactorZ=0.0001;
4748 if (ilayer==0 || ilayer==1) { // ---------- SPD
4749 detType = 0;
4750 } else if (ilayer==2 || ilayer==3) { // ---------- SDD
4751 detType = 1;
4752 detSizeFactorX *= 2.;
4753 } else if (ilayer==4 || ilayer==5) { // ---------- SSD
4754 detType = 2;
4755 }
a70ed6ad 4756 AliITSsegmentation *segm = (AliITSsegmentation*)fkDetTypeRec->GetSegmentationModel(detType);
23197852 4757 if (detType==2) segm->SetLayer(ilayer+1);
4758 Float_t detSizeX = detSizeFactorX*segm->Dx();
4759 Float_t detSizeZ = detSizeFactorZ*segm->Dz();
4760
4761 // check if the road overlaps with bad chips
4762 Float_t xloc,zloc;
e9b15b0c 4763 if(!(LocalModuleCoord(ilayer,idet,track,xloc,zloc)))return 0;
1c97ce2f 4764 Float_t zlocmin = zloc-dz;
4765 Float_t zlocmax = zloc+dz;
4766 Float_t xlocmin = xloc-dy;
4767 Float_t xlocmax = xloc+dy;
23197852 4768 Int_t chipsInRoad[100];
4769
4187a601 4770 // check if road goes out of detector
4771 Bool_t touchNeighbourDet=kFALSE;
6262dd3d 4772 if (TMath::Abs(xlocmin)>0.5*detSizeX) {xlocmin=-0.4999*detSizeX; touchNeighbourDet=kTRUE;}
4773 if (TMath::Abs(xlocmax)>0.5*detSizeX) {xlocmax=+0.4999*detSizeX; touchNeighbourDet=kTRUE;}
4774 if (TMath::Abs(zlocmin)>0.5*detSizeZ) {zlocmin=-0.4999*detSizeZ; touchNeighbourDet=kTRUE;}
4775 if (TMath::Abs(zlocmax)>0.5*detSizeZ) {zlocmax=+0.4999*detSizeZ; touchNeighbourDet=kTRUE;}
4187a601 4776 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));
4777
4778 // check if this detector is bad
4779 if (det.IsBad()) {
4780 AliDebug(2,Form("lay %d bad detector %d",ilayer,idet));
4781 if(!touchNeighbourDet) {
4782 return 2; // all detectors in road are bad
4783 } else {
4784 return 3; // at least one is bad
4785 }
4786 }
4787
23197852 4788 Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax);
4187a601 4789 AliDebug(2,Form("lay %d nChipsInRoad %d",ilayer,nChipsInRoad));
23197852 4790 if (!nChipsInRoad) return 0;
4791
4792 Bool_t anyBad=kFALSE,anyGood=kFALSE;
4793 for (Int_t iCh=0; iCh<nChipsInRoad; iCh++) {
4794 if (chipsInRoad[iCh]<0 || chipsInRoad[iCh]>det.GetNChips()-1) continue;
4187a601 4795 AliDebug(2,Form(" chip %d bad %d",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh])));
23197852 4796 if (det.IsChipBad(chipsInRoad[iCh])) {
4797 anyBad=kTRUE;
4798 } else {
4799 anyGood=kTRUE;
4800 }
6518a6c5 4801 }
4802
4187a601 4803 if (!anyGood) {
4804 if(!touchNeighbourDet) {
4805 AliDebug(2,"all bad in road");
4806 return 2; // all chips in road are bad
4807 } else {
4808 return 3; // at least a bad chip in road
4809 }
4810 }
23197852 4811
4187a601 4812 if (anyBad) {
4813 AliDebug(2,"at least a bad in road");
4814 return 3; // at least a bad chip in road
4815 }
23197852 4816
4817
4818 if (!AliITSReconstructor::GetRecoParam()->GetUseSingleBadChannelsFromOCDB()
23197852 4819 || !noClusters) return 0;
4820
4821 // There are no clusters in road: check if there is at least
6a0fdcbd 4822 // a bad SPD pixel or SDD anode or SSD strips on both sides
23197852 4823
4187a601 4824 Int_t idetInITS=idet;
4825 for(Int_t l=0;l<ilayer;l++) idetInITS+=AliITSgeomTGeo::GetNLadders(l+1)*AliITSgeomTGeo::GetNDetectors(l+1);
23197852 4826
4187a601 4827 if (fITSChannelStatus->AnyBadInRoad(idetInITS,zlocmin,zlocmax,xlocmin,xlocmax)) {
4828 AliDebug(2,Form("Bad channel in det %d of layer %d\n",idet,ilayer));
f8720bda 4829 return 4;
4187a601 4830 }
4831 //if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3;
23197852 4832
6518a6c5 4833 return 0;
4834}
4835//------------------------------------------------------------------------
ae00569a 4836Bool_t AliITStrackerMI::LocalModuleCoord(Int_t ilayer,Int_t idet,
a70ed6ad 4837 const AliITStrackMI *track,
ae00569a 4838 Float_t &xloc,Float_t &zloc) const {
4839 //-----------------------------------------------------------------
4840 // Gives position of track in local module ref. frame
4841 //-----------------------------------------------------------------
4842
4843 xloc=0.;
4844 zloc=0.;
4845
371164ec 4846 if(idet<0) return kTRUE; // track out of z acceptance of layer
ae00569a 4847
4848 Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
4849
4850 Int_t lad = Int_t(idet/ndet) + 1;
4a66240a 4851
ae00569a 4852 Int_t det = idet - (lad-1)*ndet + 1;
4853
4854 Double_t xyzGlob[3],xyzLoc[3];
4855
1c97ce2f 4856 AliITSdetector &detector = fgLayers[ilayer].GetDetector(idet);
4857 // take into account the misalignment: xyz at real detector plane
d1181f10 4858 if(!track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob)) return kFALSE;
ae00569a 4859
d1181f10 4860 if(!AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc)) return kFALSE;
ae00569a 4861
4862 xloc = (Float_t)xyzLoc[0];
4863 zloc = (Float_t)xyzLoc[2];
4864
4865 return kTRUE;
4866}
4867//------------------------------------------------------------------------
879cdb02 4868//------------------------------------------------------------------------
a70ed6ad 4869Bool_t AliITStrackerMI::IsOKForPlaneEff(const AliITStrackMI* track, const Int_t *clusters, Int_t ilayer) const {
0e91092f 4870//
4871// Method to be optimized further:
4872// Aim: decide whether a track can be used for PlaneEff evaluation
4873// the decision is taken based on the track quality at the layer under study
4874// no information on the clusters on this layer has to be used
4875// The criterium is to reject tracks at boundaries between basic block (e.g. SPD chip)
4876// the cut is done on number of sigmas from the boundaries
4877//
4878// Input: Actual track, layer [0,5] under study
4879// Output: none
4880// Return: kTRUE if this is a good track
7167ae53 4881//
4882// it will apply a pre-selection to obtain good quality tracks.
4883// Here also you will have the possibility to put a control on the
4884// impact point of the track on the basic block, in order to exclude border regions
4885// this will be done by calling a proper method of the AliITSPlaneEff class.
4886//
4887// input: AliITStrackMI* track, ilayer= layer number [0,5]
0e91092f 4888// return: Bool_t -> kTRUE if usable track, kFALSE if not usable.
0ed58a47 4889//
4890 Int_t index[AliITSgeomTGeo::kNLayers];
4891 Int_t k;
4892 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
4893 //
4894 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
4895 index[k]=clusters[k];
4896 }
4897
0e91092f 4898 if(!fPlaneEff)
a31a139f 4899 {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;}
8a32c4b5 4900 AliITSlayer &layer=fgLayers[ilayer];
4901 Double_t r=layer.GetR();
8a32c4b5 4902 AliITStrackMI tmp(*track);
4903
0ed58a47 4904// require a minimal number of cluster in other layers and eventually clusters in closest layers
061c42a0 4905 Int_t ncl_out=0; Int_t ncl_in=0;
4906 for(Int_t lay=AliITSgeomTGeo::kNLayers-1;lay>ilayer;lay--) { // count n. of cluster in outermost layers
879cdb02 4907 AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay,
0ed58a47 4908 tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ;
879cdb02 4909 // if (tmp.GetClIndex(lay)>=0) ncl_out++;
4910if(index[lay]>=0)ncl_out++;
0ed58a47 4911 }
061c42a0 4912 for(Int_t lay=ilayer-1; lay>=0;lay--) { // count n. of cluster in innermost layers
4913 AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay,
4914 tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ;
879cdb02 4915 if (index[lay]>=0) ncl_in++;
061c42a0 4916 }
63cce7b6 4917 Int_t ncl=ncl_out+ncl_in;
0ed58a47 4918 Bool_t nextout = kFALSE;
4919 if(ilayer==AliITSgeomTGeo::kNLayers-1) nextout=kTRUE; // you are already on the outermost layer
9fd412a8 4920 else nextout = ((tmp.GetClIndex(ilayer+1)>=0)? kTRUE : kFALSE );
0ed58a47 4921 Bool_t nextin = kFALSE;
4922 if(ilayer==0) nextin=kTRUE; // you are already on the innermost layer
4923 else nextin = ((index[ilayer-1]>=0)? kTRUE : kFALSE );
061c42a0 4924 // maximum number of missing clusters allowed in outermost layers
4925 if(ncl_out<AliITSgeomTGeo::kNLayers-(ilayer+1)-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersOutPlaneEff())
4926 return kFALSE;
4927 // maximum number of missing clusters allowed (both in innermost and in outermost layers)
4928 if(ncl<AliITSgeomTGeo::kNLayers-1-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersPlaneEff())
0ed58a47 4929 return kFALSE;
4930 if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInOuterLayerPlaneEff() && !nextout) return kFALSE;
4931 if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInInnerLayerPlaneEff() && !nextin) return kFALSE;
4932 if(tmp.Pt() < AliITSReconstructor::GetRecoParam()->GetMinPtPlaneEff()) return kFALSE;
4933 // if(AliITSReconstructor::GetRecoParam()->GetOnlyConstraintPlaneEff() && !tmp.GetConstrain()) return kFALSE;
4934
8a32c4b5 4935// detector number
4936 Double_t phi,z;
4937 if (!tmp.GetPhiZat(r,phi,z)) return kFALSE;
4938 Int_t idet=layer.FindDetectorIndex(phi,z);
4939 if(idet<0) { AliInfo(Form("cannot find detector"));
4940 return kFALSE;}
4941
4942 // here check if it has good Chi Square.
4943
4944 //propagate to the intersection with the detector plane
4945 const AliITSdetector &det=layer.GetDetector(idet);
4946 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return kFALSE;
4947
4948 Float_t locx; //
4949 Float_t locz; //
0e91092f 4950 if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return kFALSE;
8a32c4b5 4951 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
4952 if(key>fPlaneEff->Nblock()) return kFALSE;
4953 Float_t blockXmn,blockXmx,blockZmn,blockZmx;
4954 if (!fPlaneEff->GetBlockBoundaries(key,blockXmn,blockXmx,blockZmn,blockZmx)) return kFALSE;
8a32c4b5 4955 //***************
0e91092f 4956 // DEFINITION OF SEARCH ROAD FOR accepting a track
8a32c4b5 4957 //
061c42a0 4958 Double_t nsigx=AliITSReconstructor::GetRecoParam()->GetNSigXFromBoundaryPlaneEff();
4959 Double_t nsigz=AliITSReconstructor::GetRecoParam()->GetNSigZFromBoundaryPlaneEff();
0e91092f 4960 Double_t dx=nsigx*TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
4961 Double_t dz=nsigz*TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
879cdb02 4962 // done for RecPoints
8a32c4b5 4963
1c97ce2f 4964 // exclude tracks at boundary between detectors
0e91092f 4965 //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidthPlaneEff();
8a32c4b5 4966 Double_t boundaryWidth=0; // for the time being hard-wired, later on from AliITSRecoParam
a31a139f 4967 AliDebug(2,Form("Tracking: track impact x=%f, y=%f, z=%f",tmp.GetX(), tmp.GetY(), tmp.GetZ()));
0e91092f 4968 AliDebug(2,Form("Local: track impact x=%f, z=%f",locx,locz));
4969 AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dx,dz));
0e91092f 4970 if ( (locx-dx < blockXmn+boundaryWidth) ||
4971 (locx+dx > blockXmx-boundaryWidth) ||
4972 (locz-dz < blockZmn+boundaryWidth) ||
4973 (locz+dz > blockZmx-boundaryWidth) ) return kFALSE;
8a32c4b5 4974 return kTRUE;
7167ae53 4975}
4976//------------------------------------------------------------------------
a70ed6ad 4977void AliITStrackerMI::UseTrackForPlaneEff(const AliITStrackMI* track, Int_t ilayer) {
7167ae53 4978//
4979// This Method has to be optimized! For the time-being it uses the same criteria
4980// as those used in the search of extra clusters for overlapping modules.
4981//
4982// Method Purpose: estabilish whether a track has produced a recpoint or not
4983// in the layer under study (For Plane efficiency)
4984//
4985// inputs: AliITStrackMI* track (pointer to a usable track)
4986// outputs: none
4987// side effects: update (by 1 count) the Plane Efficiency statistics of the basic block
4988// traversed by this very track. In details:
4989// - if a cluster can be associated to the track then call
4990// AliITSPlaneEff::UpDatePlaneEff(key,kTRUE);
4991// - if not, the AliITSPlaneEff::UpDatePlaneEff(key,kFALSE) is called
4992//
a31a139f 4993 if(!fPlaneEff)
4994 {AliWarning("UseTrackForPlaneEff: null pointer to AliITSPlaneEff"); return;}
7167ae53 4995 AliITSlayer &layer=fgLayers[ilayer];
4996 Double_t r=layer.GetR();
7167ae53 4997 AliITStrackMI tmp(*track);
4998
4999// detector number
5000 Double_t phi,z;
5001 if (!tmp.GetPhiZat(r,phi,z)) return;
5002 Int_t idet=layer.FindDetectorIndex(phi,z);
5003
8a32c4b5 5004 if(idet<0) { AliInfo(Form("cannot find detector"));
5005 return;}
7167ae53 5006
7167ae53 5007
0e91092f 5008//propagate to the intersection with the detector plane
7167ae53 5009 const AliITSdetector &det=layer.GetDetector(idet);
5010 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return;
8a32c4b5 5011
1c97ce2f 5012
0e91092f 5013//***************
5014// DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
5015//
5016 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
5017 TMath::Sqrt(tmp.GetSigmaZ2() +
5018 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5019 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5020 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
5021 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
5022 TMath::Sqrt(tmp.GetSigmaY2() +
5023 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5024 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5025 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
5026
5027// road in global (rphi,z) [i.e. in tracking ref. system]
5028 Double_t zmin = tmp.GetZ() - dz;
5029 Double_t zmax = tmp.GetZ() + dz;
5030 Double_t ymin = tmp.GetY() + r*det.GetPhi() - dy;
5031 Double_t ymax = tmp.GetY() + r*det.GetPhi() + dy;
5032
5033// select clusters in road
7167ae53 5034 layer.SelectClusters(zmin,zmax,ymin,ymax);
5035
0e91092f 5036// Define criteria for track-cluster association
7167ae53 5037 Double_t msz = tmp.GetSigmaZ2() +
5038 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5039 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5040 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
5041 Double_t msy = tmp.GetSigmaY2() +
5042 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5043 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5044 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
8a32c4b5 5045 if (tmp.GetConstrain()) {
7167ae53 5046 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
5047 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
8a32c4b5 5048 } else {
5049 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
5050 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
5051 }
7167ae53 5052 msz = 1./msz; // 1/RoadZ^2
5053 msy = 1./msy; // 1/RoadY^2
0e91092f 5054//
7167ae53 5055
5056 const AliITSRecPoint *cl=0; Int_t clidx=-1, ci=-1;
5057 Int_t idetc=-1;
8a32c4b5 5058 Double_t chi2trkcl=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
5059 //Double_t tolerance=0.2;
5060 /*while ((cl=layer.GetNextCluster(clidx))!=0) {
7167ae53 5061 idetc = cl->GetDetectorIndex();
5062 if(idet!=idetc) continue;
5063 //Int_t ilay = cl->GetLayer();
5064
5065 if (TMath::Abs(tmp.GetZ() - cl->GetZ()) > tolerance) continue;
5066 if (TMath::Abs(tmp.GetY() - cl->GetY()) > tolerance) continue;
5067
5068 Double_t chi2=tmp.GetPredictedChi2(cl);
8a32c4b5 5069 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; }
5070 }*/
5071 Float_t locx; //
5072 Float_t locz; //
0e91092f 5073 if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return;
7167ae53 5074//
5075 AliDebug(2,Form("ilayer= %d, idet=%d, x= %f, z=%f",ilayer,idet,locx,locz));
5076 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
5077 if(key>fPlaneEff->Nblock()) return;
5078 Bool_t found=kFALSE;
8a32c4b5 5079 //if (ci>=0) {
1cc5cedc 5080 Double_t chi2;
8a32c4b5 5081 while ((cl=layer.GetNextCluster(clidx))!=0) {
5082 idetc = cl->GetDetectorIndex();
5083 if(idet!=idetc) continue;
5084 // here real control to see whether the cluster can be associated to the track.
5085 // cluster not associated to track
5086 if ( (tmp.GetZ()-cl->GetZ())*(tmp.GetZ()-cl->GetZ())*msz +
5087 (tmp.GetY()-cl->GetY())*(tmp.GetY()-cl->GetY())*msy > 1. ) continue;
5088 // calculate track-clusters chi2
1cc5cedc 5089 chi2 = GetPredictedChi2MI(&tmp,cl,ilayer); // note that this method change track tmp
5090 // in particular, the error associated to the cluster
8a32c4b5 5091 //Double_t chi2 = tmp.GetPredictedChi(cl); // this method does not change track tmp
5092 // chi2 cut
5093 if (chi2 > AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) continue;
7167ae53 5094 found=kTRUE;
8a32c4b5 5095 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } // this just to trace which cluster is selected
7167ae53 5096 // track->SetExtraCluster(ilayer,(ilayer<<28)+ci);
5097 // track->SetExtraModule(ilayer,idetExtra);
5098 }
5099 if(!fPlaneEff->UpDatePlaneEff(found,key))
8a32c4b5 5100 AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for key=%d",key));
5fbd4fd6 5101 if(fPlaneEff->GetCreateHistos()&& AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) {
1cc5cedc 5102 Float_t tr[4]={99999.,99999.,9999.,9999.}; // initialize to high values
5103 Float_t clu[4]={-99999.,-99999.,9999.,9999.}; // (in some cases GetCov fails)
5104 Int_t cltype[2]={-999,-999};
879cdb02 5105 // and the module
5106
5107Float_t AngleModTrack[3]={99999.,99999.,99999.}; // angles (phi, z and "absolute angle") between the track and the mormal to the module (see below)
0e91092f 5108
5109 tr[0]=locx;
5110 tr[1]=locz;
5111 tr[2]=TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
5112 tr[3]=TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
5113
3ebe30ad 5114 if (found){
5115 clu[0]=layer.GetCluster(ci)->GetDetLocalX();
5116 clu[1]=layer.GetCluster(ci)->GetDetLocalZ();
5117 cltype[0]=layer.GetCluster(ci)->GetNy();
5118 cltype[1]=layer.GetCluster(ci)->GetNz();
1cc5cedc 5119
5120 // Without the following 6 lines you would retrieve the nominal error of a cluster (e.g. for the SPD:
5121 // X->50/sqrt(12)=14 micron Z->450/sqrt(12)= 120 micron)
5122 // Within AliTrackerMI/AliTrackMI the error on the cluster is associated to the AliITStrackMI (fSigmaY,Z)
5123 // It is computed properly by calling the method
5124 // AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
5125 // T
5126 //Double_t x=0.5*(tmp.GetX()+layer.GetCluster(ci)->GetX()); // Take into account the mis-alignment
5127 //if (tmp.PropagateTo(x,0.,0.)) {
5128 chi2=GetPredictedChi2MI(&tmp,layer.GetCluster(ci),ilayer);
5129 AliCluster c(*layer.GetCluster(ci));
5130 c.SetSigmaY2(tmp.GetSigmaY(ilayer)*tmp.GetSigmaY(ilayer));
5131 c.SetSigmaZ2(tmp.GetSigmaZ(ilayer)*tmp.GetSigmaZ(ilayer));
1cc5cedc 5132 //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors
0e91092f 5133 clu[2]=TMath::Sqrt(c.GetSigmaY2());
5134 clu[3]=TMath::Sqrt(c.GetSigmaZ2());
1cc5cedc 5135 //}
3ebe30ad 5136 }
879cdb02 5137 // Compute the angles between the track and the module
5138 // compute the angle "in phi direction", i.e. the angle in the transverse plane
5139 // between the normal to the module and the projection (in the transverse plane) of the
5140 // track trajectory
5141 // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
5142 Float_t tgl = tmp.GetTgl();
5143 Float_t phitr = tmp.GetSnp();
5144 phitr = TMath::ASin(phitr);
5145 Int_t volId = AliGeomManager::LayerToVolUIDSafe(ilayer+1 ,idet );
5146
5147 Double_t tra[3]; AliGeomManager::GetOrigTranslation(volId,tra);
5148 Double_t rot[9]; AliGeomManager::GetOrigRotation(volId,rot);
5149 Double_t alpha =0.;
5150 alpha = tmp.GetAlpha();
5151 Double_t phiglob = alpha+phitr;
5152 Double_t p[3];
5153 p[0] = TMath::Cos(phiglob);
5154 p[1] = TMath::Sin(phiglob);
5155 p[2] = tgl;
5156 TVector3 pvec(p[0],p[1],p[2]);
5157 TVector3 normvec(rot[1],rot[4],rot[7]);
5158 Double_t angle = pvec.Angle(normvec);
5159
5160 if(angle>0.5*TMath::Pi()) angle = (TMath::Pi()-angle);
5161 angle *= 180./TMath::Pi();
5162
5163 //Trasverse Plane
5164 TVector3 pt(p[0],p[1],0);
5165 TVector3 normt(rot[1],rot[4],0);
5166 Double_t anglet = pt.Angle(normt);
5167
5168 Double_t phiPt = TMath::ATan2(p[1],p[0]);
5169 if(phiPt<0)phiPt+=2.*TMath::Pi();
5170 Double_t phiNorm = TMath::ATan2(rot[4],rot[1]);
5171 if(phiNorm<0) phiNorm+=2.*TMath::Pi();
5172 if(anglet>0.5*TMath::Pi()) anglet = (TMath::Pi()-anglet);
5173 if(phiNorm>phiPt) anglet*=-1.;// pt-->normt clockwise: anglet>0
5174 if((phiNorm-phiPt)>TMath::Pi()) anglet*=-1.;
5175 anglet *= 180./TMath::Pi();
5176
5177 AngleModTrack[2]=(Float_t) angle;
5178 AngleModTrack[0]=(Float_t) anglet;
5179 // now the "angle in z" (much easier, i.e. the angle between the z axis and the track momentum + 90)
5180 AngleModTrack[1]=TMath::ACos(tgl/TMath::Sqrt(tgl*tgl+1.));
5181 AngleModTrack[1]-=TMath::Pi()/2.; // range of angle is -pi/2 , pi/2
5182 AngleModTrack[1]*=180./TMath::Pi(); // in degree
5183
5184 fPlaneEff->FillHistos(key,found,tr,clu,cltype,AngleModTrack);
5fbd4fd6 5185 }
7167ae53 5186return;
5187}
a4354152 5188
5189Int_t AliITStrackerMI::FindClusterOfTrack(int label, int lr, int* store) const //RS
5190{
5191 // find the MC cluster for the label
5192 return fgLayers[lr].FindClusterForLabel(label,store);
5193}
5194
fa4c46da 5195/*
a4354152 5196Int_t AliITStrackerMI::GetPattern(const AliITStrackMI* track, char* patt)
5197{
5198 // creates pattarn of hits marking fake/corrects by f/c. Used for debugging (RS)
cff9e015 5199 strncpy(patt,"......",6);
a4354152 5200 int tpcLabel = 0;
5201 if (track->GetESDtrack()) tpcLabel = track->GetESDtrack()->GetTPCLabel();
5202 //
5203 int nwrong = 0;
5204 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
5205 Int_t cindex = track->GetClusterIndex(i);
5206 Int_t l=(cindex & 0xf0000000) >> 28;
5207 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
5208 Int_t isWrong=1;
5209 for (Int_t ind=0;ind<3;ind++) if (cl->GetLabel(ind)==TMath::Abs(tpcLabel)) isWrong=0;
5210 patt[l] = isWrong ? 'f':'c';
5211 nwrong+=isWrong;
5212 }
5213 return nwrong;
5214}
fa4c46da 5215*/
a4354152 5216//------------------------------------------------------------------------
b80c197e 5217Int_t AliITStrackerMI::AliITSlayer::FindClusterForLabel(Int_t label, Int_t *store) const
5218{ //RS
a4354152 5219 //--------------------------------------------------------------------
5220
5221 int nfound = 0;
5222 for (int ic=0;ic<fN;ic++) {
5223 const AliITSRecPoint *cl = GetCluster(ic);
5224 for (int i=0;i<3;i++) if (cl->GetLabel(i)==label) {
5225 if (nfound<50) {
5226 if (store) store[nfound] = ic;
5227 nfound++;
5228 }
5229 break;
5230 }
5231 }
5232 return nfound;
5233}
04315dad 5234