]> git.uio.no Git - u/mrichter/AliRoot.git/blame - STEER/AliESDtrack.cxx
git://git.uio.no / u / mrichter / AliRoot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Update MC pt shape syst
[u/mrichter/AliRoot.git] / STEER / AliESDtrack.cxx
CommitLineData
ae982df3 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
ae982df3 15//-----------------------------------------------------------------
16// Implementation of the ESD track class
4427806c 17// ESD = Event Summary Data
15614b8b 18// This is the class to deal with during the phisics analysis of data
4427806c 19// Origin: Iouri Belikov, CERN
20// e-mail: Jouri.Belikov@cern.ch
4df45162 21//
22//
23//
24// What do you need to know before starting analysis
25// (by Marian Ivanov: marian.ivanov@cern.ch)
26//
27//
28// AliESDtrack:
29// 1. What is the AliESDtrack
30// 2. What informations do we store
31// 3. How to use the information for analysis
32//
33//
34// 1.AliESDtrack is the container of the information about the track/particle
35// reconstructed during Barrel Tracking.
36// The track information is propagated from one tracking detector to
37// other using the functionality of AliESDtrack - Current parameters.
38//
39// No global fit model is used.
40// Barrel tracking use Kalman filtering technique, it gives optimal local
41// track parameters at given point under certian assumptions.
42//
43// Kalman filter take into account additional effect which are
44// difficult to handle using global fit.
45// Effects:
46// a.) Multiple scattering
47// b.) Energy loss
48// c.) Non homogenous magnetic field
49//
50// In general case, following barrel detectors are contributing to
51// the Kalman track information:
52// a. TPC
53// b. ITS
54// c. TRD
55//
56// In general 3 reconstruction itteration are performed:
57// 1. Find tracks - sequence TPC->ITS
58// 2. PropagateBack - sequence ITS->TPC->TRD -> Outer PID detectors
59// 3. Refit invward - sequence TRD->TPC->ITS
60// The current tracks are updated after each detector (see bellow).
61// In specical cases a track sanpshots are stored.
62//
63//
64// For some type of analysis (+visualization) track local parameters at
65// different position are neccesary. A snapshots during the track
66// propagation are created.
67// (See AliExternalTrackParam class for desctiption of variables and
68// functionality)
69// Snapshots:
70// a. Current parameters - class itself (AliExternalTrackParam)
71// Contributors: general case TRD->TPC->ITS
72// Preferable usage: Decission - primary or secondary track
73// NOTICE - By default the track parameters are stored at the DCA point
74// to the primary vertex. optimal for primary tracks,
75// far from optimal for secondary tracks.
76// b. Constrained parameters - Kalman information updated with
77// the Primary vertex information
78// Contributors: general case TRD->TPC->ITS
79// Preferable usage: Use only for tracks selected as primary
80// NOTICE - not real constrain - taken as additional measurement
81// with corresponding error
82// Function:
83// const AliExternalTrackParam *GetConstrainedParam() const {return fCp;}
84// c. Inner parameters - Track parameters at inner wall of the TPC
85// Contributors: general case TRD->TPC
86// function:
87// const AliExternalTrackParam *GetInnerParam() const { return fIp;}
88//
89// d. TPCinnerparam - contributors - TPC only
90// Contributors: TPC
91// Preferable usage: Requested for HBT study
92// (smaller correlations as using also ITS information)
93// NOTICE - the track parameters are propagated to the DCA to
94// to primary vertex
95// Optimal for primary, far from optimal for secondary tracks
96// Function:
97// const AliExternalTrackParam *GetTPCInnerParam() const {return fTPCInner;}
98//
99// e. Outer parameters -
100// Contributors- general case - ITS-> TPC -> TRD
101// The last point - Outer parameters radius is determined
102// e.a) Local inclination angle bigger than threshold -
103// Low momenta tracks
104// e.a) Catastrofic energy losss in material
105// e.b) Not further improvement (no space points)
106// Usage:
107// a.) Tracking: Starting parameter for Refit inward
108// b.) Visualization
109// c.) QA
110// NOTICE: Should be not used for the physic analysis
111// Function:
112// const AliExternalTrackParam *GetOuterParam() const { return fOp;}
113//
ae982df3 114//-----------------------------------------------------------------
115
e1e6896f 116#include <TMath.h>
49edfa08 117#include <TParticle.h>
c180f65d 118#include <TDatabasePDG.h>
ae982df3 119
49d13e89 120#include "AliESDVertex.h"
ae982df3 121#include "AliESDtrack.h"
95621324 122#include "AliESDEvent.h"
ae982df3 123#include "AliKalmanTrack.h"
4f6e22bd 124#include "AliVTrack.h"
5f7789fc 125#include "AliLog.h"
15e85efa 126#include "AliTrackPointArray.h"
0c19adf7 127#include "TPolyMarker3D.h"
ae982df3 128
129ClassImp(AliESDtrack)
130
562dd0b4 131void SetPIDValues(Double_t * dest, const Double_t * src, Int_t n) {
d27bbc79 132 // This function copies "n" PID weights from "scr" to "dest"
133 // and normalizes their sum to 1 thus producing conditional probabilities.
134 // The negative weights are set to 0.
135 // In case all the weights are non-positive they are replaced by
136 // uniform probabilities
137
138 if (n<=0) return;
139
140 Float_t uniform = 1./(Float_t)n;
141
142 Float_t sum = 0;
143 for (Int_t i=0; i<n; i++)
144 if (src[i]>=0) {
145 sum+=src[i];
146 dest[i] = src[i];
147 }
148 else {
149 dest[i] = 0;
150 }
151
152 if(sum>0)
153 for (Int_t i=0; i<n; i++) dest[i] /= sum;
154 else
155 for (Int_t i=0; i<n; i++) dest[i] = uniform;
156}
157
ae982df3 158//_______________________________________________________________________
159AliESDtrack::AliESDtrack() :
c9ec41e8 160 AliExternalTrackParam(),
562dd0b4 161 fCp(0),
162 fIp(0),
163 fTPCInner(0),
164 fOp(0),
c38d443f 165 fHMPIDp(0),
59c31692 166 fFriendTrack(NULL),
562dd0b4 167 fTPCClusterMap(159),//number of padrows
168 fTPCSharedMap(159),//number of padrows
90e48c0c 169 fFlags(0),
90e48c0c 170 fID(0),
562dd0b4 171 fLabel(0),
172 fITSLabel(0),
173 fTPCLabel(0),
174 fTRDLabel(0),
ab37ab1e 175 fTOFCalChannel(-1),
ce3f4882 176 fTOFindex(-1),
562dd0b4 177 fHMPIDqn(0),
81aa7a0d 178 fHMPIDcluIdx(-1),
f1cedef3 179 fCaloIndex(kEMCALNoMatch),
562dd0b4 180 fHMPIDtrkTheta(0),
181 fHMPIDtrkPhi(0),
182 fHMPIDsignal(0),
90e48c0c 183 fTrackLength(0),
d7ddf1e9 184 fdTPC(0),fzTPC(0),
185 fCddTPC(0),fCdzTPC(0),fCzzTPC(0),
436dfe39 186 fCchi2TPC(0),
49d13e89 187 fD(0),fZ(0),
188 fCdd(0),fCdz(0),fCzz(0),
562dd0b4 189 fCchi2(0),
90e48c0c 190 fITSchi2(0),
90e48c0c 191 fTPCchi2(0),
949840f6 192 fTPCchi2Iter1(0),
562dd0b4 193 fTRDchi2(0),
194 fTOFchi2(0),
195 fHMPIDchi2(0),
b5b2b4db 196 fGlobalChi2(0),
562dd0b4 197 fITSsignal(0),
90e48c0c 198 fTPCsignal(0),
e1d4c1b5 199 fTPCsignalS(0),
90e48c0c 200 fTRDsignal(0),
90e48c0c 201 fTRDQuality(0),
23d49657 202 fTRDBudget(0),
ab37ab1e 203 fTOFsignal(99999),
204 fTOFsignalToT(99999),
205 fTOFsignalRaw(99999),
206 fTOFsignalDz(999),
207 fTOFsignalDx(999),
208 fTOFdeltaBC(999),
209 fTOFl0l1(999),
f1cedef3 210 fCaloDx(0),
211 fCaloDz(0),
562dd0b4 212 fHMPIDtrkX(0),
213 fHMPIDtrkY(0),
214 fHMPIDmipX(0),
215 fHMPIDmipY(0),
216 fTPCncls(0),
217 fTPCnclsF(0),
218 fTPCsignalN(0),
949840f6 219 fTPCnclsIter1(0),
220 fTPCnclsFIter1(0),
562dd0b4 221 fITSncls(0),
222 fITSClusterMap(0),
25015f7a 223 fITSSharedMap(0),
562dd0b4 224 fTRDncls(0),
225 fTRDncls0(0),
ed15ef4f 226 fTRDntracklets(0),
6984f7c1 227 fTRDnSlices(0),
6dc21f57 228 fTRDslices(0x0),
95621324 229 fVertexID(-2),// -2 means an orphan track
230 fESDEvent(0)
ae982df3 231{
232 //
233 // The default ESD constructor
234 //
59c31692 235 if (!OnlineMode()) fFriendTrack=new AliESDfriendTrack();
236
6984f7c1 237 Int_t i;
6238d7a9 238 for (i=0; i<AliPID::kSPECIES; i++) {
4a78b8c5 239 fTrackTime[i]=0.;
562dd0b4 240 fR[i]=0.;
241 fITSr[i]=0.;
242 fTPCr[i]=0.;
243 fTRDr[i]=0.;
244 fTOFr[i]=0.;
245 fHMPIDr[i]=0.;
2bad268c 246 }
ac2f7574 247
ef7253ac 248 for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
562dd0b4 249 for (i=0; i<3; i++) { fV0Indexes[i]=0;}
6984f7c1 250 for (i=0;i<kTRDnPlanes;i++) {
562dd0b4 251 fTRDTimBin[i]=0;
6d45eaef 252 }
1d4882da 253 for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;}
562dd0b4 254 for (i=0;i<4;i++) {fTPCPoints[i]=0;}
ab37ab1e 255 for (i=0;i<3;i++) {fTOFLabel[i]=-1;}
562dd0b4 256 for (i=0;i<10;i++) {fTOFInfo[i]=0;}
89f1b176 257 for (i=0;i<12;i++) {fITSModule[i]=-1;}
c4d11b15 258}
259
59c31692 260bool AliESDtrack::fgkOnlineMode=false;
261
c4d11b15 262//_______________________________________________________________________
90e48c0c 263AliESDtrack::AliESDtrack(const AliESDtrack& track):
c9ec41e8 264 AliExternalTrackParam(track),
562dd0b4 265 fCp(0),
266 fIp(0),
267 fTPCInner(0),
268 fOp(0),
c38d443f 269 fHMPIDp(0),
562dd0b4 270 fFriendTrack(0),
271 fTPCClusterMap(track.fTPCClusterMap),
272 fTPCSharedMap(track.fTPCSharedMap),
90e48c0c 273 fFlags(track.fFlags),
90e48c0c 274 fID(track.fID),
562dd0b4 275 fLabel(track.fLabel),
276 fITSLabel(track.fITSLabel),
277 fTPCLabel(track.fTPCLabel),
278 fTRDLabel(track.fTRDLabel),
279 fTOFCalChannel(track.fTOFCalChannel),
280 fTOFindex(track.fTOFindex),
281 fHMPIDqn(track.fHMPIDqn),
282 fHMPIDcluIdx(track.fHMPIDcluIdx),
f1cedef3 283 fCaloIndex(track.fCaloIndex),
562dd0b4 284 fHMPIDtrkTheta(track.fHMPIDtrkTheta),
285 fHMPIDtrkPhi(track.fHMPIDtrkPhi),
286 fHMPIDsignal(track.fHMPIDsignal),
90e48c0c 287 fTrackLength(track.fTrackLength),
d7ddf1e9 288 fdTPC(track.fdTPC),fzTPC(track.fzTPC),
289 fCddTPC(track.fCddTPC),fCdzTPC(track.fCdzTPC),fCzzTPC(track.fCzzTPC),
436dfe39 290 fCchi2TPC(track.fCchi2TPC),
49d13e89 291 fD(track.fD),fZ(track.fZ),
292 fCdd(track.fCdd),fCdz(track.fCdz),fCzz(track.fCzz),
90e48c0c 293 fCchi2(track.fCchi2),
90e48c0c 294 fITSchi2(track.fITSchi2),
90e48c0c 295 fTPCchi2(track.fTPCchi2),
949840f6 296 fTPCchi2Iter1(track.fTPCchi2Iter1),
562dd0b4 297 fTRDchi2(track.fTRDchi2),
298 fTOFchi2(track.fTOFchi2),
299 fHMPIDchi2(track.fHMPIDchi2),
b5b2b4db 300 fGlobalChi2(track.fGlobalChi2),
562dd0b4 301 fITSsignal(track.fITSsignal),
90e48c0c 302 fTPCsignal(track.fTPCsignal),
e1d4c1b5 303 fTPCsignalS(track.fTPCsignalS),
90e48c0c 304 fTRDsignal(track.fTRDsignal),
90e48c0c 305 fTRDQuality(track.fTRDQuality),
23d49657 306 fTRDBudget(track.fTRDBudget),
90e48c0c 307 fTOFsignal(track.fTOFsignal),
85324138 308 fTOFsignalToT(track.fTOFsignalToT),
d321691a 309 fTOFsignalRaw(track.fTOFsignalRaw),
310 fTOFsignalDz(track.fTOFsignalDz),
a5d9ff0f 311 fTOFsignalDx(track.fTOFsignalDx),
d86081b1 312 fTOFdeltaBC(track.fTOFdeltaBC),
313 fTOFl0l1(track.fTOFl0l1),
f1cedef3 314 fCaloDx(track.fCaloDx),
315 fCaloDz(track.fCaloDz),
f4b3bbb7 316 fHMPIDtrkX(track.fHMPIDtrkX),
317 fHMPIDtrkY(track.fHMPIDtrkY),
318 fHMPIDmipX(track.fHMPIDmipX),
319 fHMPIDmipY(track.fHMPIDmipY),
562dd0b4 320 fTPCncls(track.fTPCncls),
321 fTPCnclsF(track.fTPCnclsF),
322 fTPCsignalN(track.fTPCsignalN),
949840f6 323 fTPCnclsIter1(track.fTPCnclsIter1),
324 fTPCnclsFIter1(track.fTPCnclsIter1),
562dd0b4 325 fITSncls(track.fITSncls),
326 fITSClusterMap(track.fITSClusterMap),
25015f7a 327 fITSSharedMap(track.fITSSharedMap),
562dd0b4 328 fTRDncls(track.fTRDncls),
329 fTRDncls0(track.fTRDncls0),
ed15ef4f 330 fTRDntracklets(track.fTRDntracklets),
6984f7c1 331 fTRDnSlices(track.fTRDnSlices),
6dc21f57 332 fTRDslices(0x0),
95621324 333 fVertexID(track.fVertexID),
334 fESDEvent(track.fESDEvent)
90e48c0c 335{
c4d11b15 336 //
337 //copy constructor
338 //
ef7253ac 339 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i]=track.fTrackTime[i];
340 for (Int_t i=0;i<AliPID::kSPECIES;i++) fR[i]=track.fR[i];
c4d11b15 341 //
304864ab 342 for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=track.fITSr[i];
c4d11b15 343 //
304864ab 344 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=track.fTPCr[i];
1d4882da 345 for (Int_t i=0;i<4;i++) {fITSdEdxSamples[i]=track.fITSdEdxSamples[i];}
51ad6848 346 for (Int_t i=0;i<4;i++) {fTPCPoints[i]=track.fTPCPoints[i];}
347 for (Int_t i=0; i<3;i++) { fKinkIndexes[i]=track.fKinkIndexes[i];}
348 for (Int_t i=0; i<3;i++) { fV0Indexes[i]=track.fV0Indexes[i];}
c4d11b15 349 //
6984f7c1 350 for (Int_t i=0;i<kTRDnPlanes;i++) {
6d45eaef 351 fTRDTimBin[i]=track.fTRDTimBin[i];
eab5961e 352 }
6984f7c1 353
354 if (fTRDnSlices) {
355 fTRDslices=new Double32_t[fTRDnSlices];
356 for (Int_t i=0; i<fTRDnSlices; i++) fTRDslices[i]=track.fTRDslices[i];
357 }
358
304864ab 359 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i]=track.fTRDr[i];
304864ab 360 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i]=track.fTOFr[i];
51ad6848 361 for (Int_t i=0;i<3;i++) fTOFLabel[i]=track.fTOFLabel[i];
362 for (Int_t i=0;i<10;i++) fTOFInfo[i]=track.fTOFInfo[i];
89f1b176 363 for (Int_t i=0;i<12;i++) fITSModule[i]=track.fITSModule[i];
f4b3bbb7 364 for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i]=track.fHMPIDr[i];
c9ec41e8 365
366 if (track.fCp) fCp=new AliExternalTrackParam(*track.fCp);
367 if (track.fIp) fIp=new AliExternalTrackParam(*track.fIp);
4aeb9470 368 if (track.fTPCInner) fTPCInner=new AliExternalTrackParam(*track.fTPCInner);
c9ec41e8 369 if (track.fOp) fOp=new AliExternalTrackParam(*track.fOp);
c38d443f 370 if (track.fHMPIDp) fHMPIDp=new AliExternalTrackParam(*track.fHMPIDp);
371
8497bca0 372 if (track.fFriendTrack) fFriendTrack=new AliESDfriendTrack(*(track.fFriendTrack));
ae982df3 373}
15e85efa 374
4f6e22bd 375//_______________________________________________________________________
376AliESDtrack::AliESDtrack(const AliVTrack *track) :
377 AliExternalTrackParam(track),
378 fCp(0),
379 fIp(0),
380 fTPCInner(0),
381 fOp(0),
c38d443f 382 fHMPIDp(0),
4f6e22bd 383 fFriendTrack(0),
384 fTPCClusterMap(159),//number of padrows
385 fTPCSharedMap(159),//number of padrows
386 fFlags(0),
387 fID(),
388 fLabel(0),
389 fITSLabel(0),
390 fTPCLabel(0),
391 fTRDLabel(0),
ab37ab1e 392 fTOFCalChannel(-1),
4f6e22bd 393 fTOFindex(-1),
394 fHMPIDqn(0),
81aa7a0d 395 fHMPIDcluIdx(-1),
f1cedef3 396 fCaloIndex(kEMCALNoMatch),
4f6e22bd 397 fHMPIDtrkTheta(0),
398 fHMPIDtrkPhi(0),
399 fHMPIDsignal(0),
400 fTrackLength(0),
401 fdTPC(0),fzTPC(0),
402 fCddTPC(0),fCdzTPC(0),fCzzTPC(0),
403 fCchi2TPC(0),
404 fD(0),fZ(0),
405 fCdd(0),fCdz(0),fCzz(0),
406 fCchi2(0),
407 fITSchi2(0),
408 fTPCchi2(0),
949840f6 409 fTPCchi2Iter1(0),
4f6e22bd 410 fTRDchi2(0),
411 fTOFchi2(0),
412 fHMPIDchi2(0),
b5b2b4db 413 fGlobalChi2(0),
4f6e22bd 414 fITSsignal(0),
415 fTPCsignal(0),
416 fTPCsignalS(0),
417 fTRDsignal(0),
418 fTRDQuality(0),
419 fTRDBudget(0),
ab37ab1e 420 fTOFsignal(99999),
421 fTOFsignalToT(99999),
422 fTOFsignalRaw(99999),
423 fTOFsignalDz(999),
424 fTOFsignalDx(999),
425 fTOFdeltaBC(999),
426 fTOFl0l1(999),
f1cedef3 427 fCaloDx(0),
428 fCaloDz(0),
4f6e22bd 429 fHMPIDtrkX(0),
430 fHMPIDtrkY(0),
431 fHMPIDmipX(0),
432 fHMPIDmipY(0),
433 fTPCncls(0),
434 fTPCnclsF(0),
435 fTPCsignalN(0),
949840f6 436 fTPCnclsIter1(0),
437 fTPCnclsFIter1(0),
4f6e22bd 438 fITSncls(0),
439 fITSClusterMap(0),
25015f7a 440 fITSSharedMap(0),
4f6e22bd 441 fTRDncls(0),
442 fTRDncls0(0),
ed15ef4f 443 fTRDntracklets(0),
4f6e22bd 444 fTRDnSlices(0),
6dc21f57 445 fTRDslices(0x0),
95621324 446 fVertexID(-2), // -2 means an orphan track
447 fESDEvent(0)
4f6e22bd 448{
449 //
610e3088 450 // ESD track from AliVTrack.
451 // This is not a copy constructor !
4f6e22bd 452 //
453
610e3088 454 if (track->InheritsFrom("AliExternalTrackParam")) {
455 AliError("This is not a copy constructor. Use AliESDtrack(const AliESDtrack &) !");
456 AliWarning("Calling the default constructor...");
457 AliESDtrack();
458 return;
459 }
460
4f6e22bd 461 // Reset all the arrays
462 Int_t i;
463 for (i=0; i<AliPID::kSPECIES; i++) {
464 fTrackTime[i]=0.;
465 fR[i]=0.;
466 fITSr[i]=0.;
467 fTPCr[i]=0.;
468 fTRDr[i]=0.;
469 fTOFr[i]=0.;
470 fHMPIDr[i]=0.;
471 }
472
473 for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
474 for (i=0; i<3; i++) { fV0Indexes[i]=-1;}
475 for (i=0;i<kTRDnPlanes;i++) {
476 fTRDTimBin[i]=0;
477 }
1d4882da 478 for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;}
4f6e22bd 479 for (i=0;i<4;i++) {fTPCPoints[i]=0;}
ab37ab1e 480 for (i=0;i<3;i++) {fTOFLabel[i]=-1;}
4f6e22bd 481 for (i=0;i<10;i++) {fTOFInfo[i]=0;}
482 for (i=0;i<12;i++) {fITSModule[i]=-1;}
483
484 // Set the ID
485 SetID(track->GetID());
486
487 // Set ITS cluster map
488 fITSClusterMap=track->GetITSClusterMap();
25015f7a 489 fITSSharedMap=0;
4f6e22bd 490
d577eec9 491 fITSncls=0;
492 for(i=0; i<6; i++) {
493 if(HasPointOnITSLayer(i)) fITSncls++;
494 }
495
07cc7a48 496 // Set TPC ncls
497 fTPCncls=track->GetTPCNcls();
498
499
4f6e22bd 500 // Set the combined PID
501 const Double_t *pid = track->PID();
67be2d29 502 if(pid){
503 for (i=0; i<AliPID::kSPECIES; i++) fR[i]=pid[i];
504 }
4f6e22bd 505 // AliESD track label
506 SetLabel(track->GetLabel());
39ca41b3 507 // Set the status
508 SetStatus(track->GetStatus());
4f6e22bd 509}
510
49edfa08 511//_______________________________________________________________________
512AliESDtrack::AliESDtrack(TParticle * part) :
513 AliExternalTrackParam(),
562dd0b4 514 fCp(0),
515 fIp(0),
516 fTPCInner(0),
517 fOp(0),
c38d443f 518 fHMPIDp(0),
562dd0b4 519 fFriendTrack(0),
520 fTPCClusterMap(159),//number of padrows
521 fTPCSharedMap(159),//number of padrows
49edfa08 522 fFlags(0),
49edfa08 523 fID(0),
562dd0b4 524 fLabel(0),
525 fITSLabel(0),
526 fTPCLabel(0),
527 fTRDLabel(0),
ab37ab1e 528 fTOFCalChannel(-1),
ce3f4882 529 fTOFindex(-1),
562dd0b4 530 fHMPIDqn(0),
81aa7a0d 531 fHMPIDcluIdx(-1),
f1cedef3 532 fCaloIndex(kEMCALNoMatch),
562dd0b4 533 fHMPIDtrkTheta(0),
534 fHMPIDtrkPhi(0),
535 fHMPIDsignal(0),
49edfa08 536 fTrackLength(0),
d7ddf1e9 537 fdTPC(0),fzTPC(0),
538 fCddTPC(0),fCdzTPC(0),fCzzTPC(0),
436dfe39 539 fCchi2TPC(0),
49edfa08 540 fD(0),fZ(0),
541 fCdd(0),fCdz(0),fCzz(0),
562dd0b4 542 fCchi2(0),
49edfa08 543 fITSchi2(0),
49edfa08 544 fTPCchi2(0),
949840f6 545 fTPCchi2Iter1(0),
562dd0b4 546 fTRDchi2(0),
547 fTOFchi2(0),
548 fHMPIDchi2(0),
b5b2b4db 549 fGlobalChi2(0),
562dd0b4 550 fITSsignal(0),
49edfa08 551 fTPCsignal(0),
49edfa08 552 fTPCsignalS(0),
49edfa08 553 fTRDsignal(0),
49edfa08 554 fTRDQuality(0),
555 fTRDBudget(0),
ab37ab1e 556 fTOFsignal(99999),
557 fTOFsignalToT(99999),
558 fTOFsignalRaw(99999),
559 fTOFsignalDz(999),
560 fTOFsignalDx(999),
561 fTOFdeltaBC(999),
562 fTOFl0l1(999),
f1cedef3 563 fCaloDx(0),
564 fCaloDz(0),
562dd0b4 565 fHMPIDtrkX(0),
566 fHMPIDtrkY(0),
567 fHMPIDmipX(0),
568 fHMPIDmipY(0),
569 fTPCncls(0),
570 fTPCnclsF(0),
571 fTPCsignalN(0),
949840f6 572 fTPCnclsIter1(0),
573 fTPCnclsFIter1(0),
562dd0b4 574 fITSncls(0),
575 fITSClusterMap(0),
25015f7a 576 fITSSharedMap(0),
562dd0b4 577 fTRDncls(0),
578 fTRDncls0(0),
ed15ef4f 579 fTRDntracklets(0),
6984f7c1 580 fTRDnSlices(0),
6dc21f57 581 fTRDslices(0x0),
95621324 582 fVertexID(-2), // -2 means an orphan track
583 fESDEvent(0)
49edfa08 584{
585 //
586 // ESD track from TParticle
587 //
588
589 // Reset all the arrays
6984f7c1 590 Int_t i;
49edfa08 591 for (i=0; i<AliPID::kSPECIES; i++) {
592 fTrackTime[i]=0.;
593 fR[i]=0.;
594 fITSr[i]=0.;
595 fTPCr[i]=0.;
596 fTRDr[i]=0.;
597 fTOFr[i]=0.;
f4b3bbb7 598 fHMPIDr[i]=0.;
49edfa08 599 }
600
601 for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
602 for (i=0; i<3; i++) { fV0Indexes[i]=-1;}
6984f7c1 603 for (i=0;i<kTRDnPlanes;i++) {
562dd0b4 604 fTRDTimBin[i]=0;
49edfa08 605 }
1d4882da 606 for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;}
562dd0b4 607 for (i=0;i<4;i++) {fTPCPoints[i]=0;}
ab37ab1e 608 for (i=0;i<3;i++) {fTOFLabel[i]=-1;}
562dd0b4 609 for (i=0;i<10;i++) {fTOFInfo[i]=0;}
89f1b176 610 for (i=0;i<12;i++) {fITSModule[i]=-1;}
49edfa08 611
612 // Calculate the AliExternalTrackParam content
613
614 Double_t xref;
615 Double_t alpha;
616 Double_t param[5];
617 Double_t covar[15];
618
619 // Calculate alpha: the rotation angle of the corresponding local system (TPC sector)
620 alpha = part->Phi()*180./TMath::Pi();
621 if (alpha<0) alpha+= 360.;
622 if (alpha>360) alpha -= 360.;
623
624 Int_t sector = (Int_t)(alpha/20.);
625 alpha = 10. + 20.*sector;
626 alpha /= 180;
627 alpha *= TMath::Pi();
628
629 // Covariance matrix: no errors, the parameters are exact
6c27b212 630 for (i=0; i<15; i++) covar[i]=0.;
49edfa08 631
632 // Get the vertex of origin and the momentum
633 TVector3 ver(part->Vx(),part->Vy(),part->Vz());
634 TVector3 mom(part->Px(),part->Py(),part->Pz());
635
636 // Rotate to the local coordinate system (TPC sector)
637 ver.RotateZ(-alpha);
638 mom.RotateZ(-alpha);
639
640 // X of the referense plane
641 xref = ver.X();
642
643 Int_t pdgCode = part->GetPdgCode();
644
645 Double_t charge =
646 TDatabasePDG::Instance()->GetParticle(pdgCode)->Charge();
647
648 param[0] = ver.Y();
649 param[1] = ver.Z();
650 param[2] = TMath::Sin(mom.Phi());
651 param[3] = mom.Pz()/mom.Pt();
652 param[4] = TMath::Sign(1/mom.Pt(),charge);
653
654 // Set AliExternalTrackParam
655 Set(xref, alpha, param, covar);
656
657 // Set the PID
658 Int_t indexPID = 99;
659
660 switch (TMath::Abs(pdgCode)) {
661
662 case 11: // electron
663 indexPID = 0;
664 break;
665
666 case 13: // muon
667 indexPID = 1;
668 break;
669
670 case 211: // pion
671 indexPID = 2;
672 break;
673
674 case 321: // kaon
675 indexPID = 3;
676 break;
677
678 case 2212: // proton
679 indexPID = 4;
680 break;
681
682 default:
683 break;
684 }
685
686 // If the particle is not e,mu,pi,K or p the PID probabilities are set to 0
687 if (indexPID < AliPID::kSPECIES) {
688 fR[indexPID]=1.;
689 fITSr[indexPID]=1.;
690 fTPCr[indexPID]=1.;
691 fTRDr[indexPID]=1.;
692 fTOFr[indexPID]=1.;
f4b3bbb7 693 fHMPIDr[indexPID]=1.;
49edfa08 694
695 }
696 // AliESD track label
697 SetLabel(part->GetUniqueID());
698
699}
700
c4d11b15 701//_______________________________________________________________________
702AliESDtrack::~AliESDtrack(){
703 //
704 // This is destructor according Coding Conventrions
705 //
706 //printf("Delete track\n");
c9ec41e8 707 delete fIp;
4aeb9470 708 delete fTPCInner;
c9ec41e8 709 delete fOp;
c38d443f 710 delete fHMPIDp;
c9ec41e8 711 delete fCp;
59c31692 712 if (fFriendTrack) delete fFriendTrack;
713 fFriendTrack=NULL;
6984f7c1 714 if(fTRDnSlices)
715 delete[] fTRDslices;
c4d11b15 716}
ae982df3 717
732a24fe 718AliESDtrack &AliESDtrack::operator=(const AliESDtrack &source){
719
720
721 if(&source == this) return *this;
722 AliExternalTrackParam::operator=(source);
723
724
725 if(source.fCp){
726 // we have the trackparam: assign or copy construct
727 if(fCp)*fCp = *source.fCp;
728 else fCp = new AliExternalTrackParam(*source.fCp);
729 }
730 else{
731 // no track param delete the old one
732 if(fCp)delete fCp;
733 fCp = 0;
734 }
735
736 if(source.fIp){
737 // we have the trackparam: assign or copy construct
738 if(fIp)*fIp = *source.fIp;
739 else fIp = new AliExternalTrackParam(*source.fIp);
740 }
741 else{
742 // no track param delete the old one
743 if(fIp)delete fIp;
744 fIp = 0;
745 }
746
747
748 if(source.fTPCInner){
749 // we have the trackparam: assign or copy construct
750 if(fTPCInner) *fTPCInner = *source.fTPCInner;
751 else fTPCInner = new AliExternalTrackParam(*source.fTPCInner);
752 }
753 else{
754 // no track param delete the old one
755 if(fTPCInner)delete fTPCInner;
756 fTPCInner = 0;
757 }
758
759
760 if(source.fOp){
761 // we have the trackparam: assign or copy construct
762 if(fOp) *fOp = *source.fOp;
763 else fOp = new AliExternalTrackParam(*source.fOp);
764 }
765 else{
766 // no track param delete the old one
767 if(fOp)delete fOp;
768 fOp = 0;
769 }
770
c38d443f 771
772 if(source.fHMPIDp){
773 // we have the trackparam: assign or copy construct
b01794e9 774 if(fHMPIDp) *fHMPIDp = *source.fHMPIDp;
c38d443f 775 else fHMPIDp = new AliExternalTrackParam(*source.fHMPIDp);
776 }
777 else{
778 // no track param delete the old one
779 if(fHMPIDp)delete fHMPIDp;
780 fHMPIDp = 0;
781 }
782
783
732a24fe 784 // copy also the friend track
785 // use copy constructor
786 if(source.fFriendTrack){
787 // we have the trackparam: assign or copy construct
788 delete fFriendTrack; fFriendTrack=new AliESDfriendTrack(*source.fFriendTrack);
789 }
790 else{
791 // no track param delete the old one
792 delete fFriendTrack; fFriendTrack= 0;
793 }
794
795 fTPCClusterMap = source.fTPCClusterMap;
796 fTPCSharedMap = source.fTPCSharedMap;
797 // the simple stuff
798 fFlags = source.fFlags;
799 fID = source.fID;
800 fLabel = source.fLabel;
801 fITSLabel = source.fITSLabel;
802 for(int i = 0; i< 12;++i){
803 fITSModule[i] = source.fITSModule[i];
804 }
805 fTPCLabel = source.fTPCLabel;
806 fTRDLabel = source.fTRDLabel;
807 for(int i = 0; i< 3;++i){
808 fTOFLabel[i] = source.fTOFLabel[i];
809 }
810 fTOFCalChannel = source.fTOFCalChannel;
811 fTOFindex = source.fTOFindex;
812 fHMPIDqn = source.fHMPIDqn;
813 fHMPIDcluIdx = source.fHMPIDcluIdx;
f1cedef3 814 fCaloIndex = source.fCaloIndex;
732a24fe 815
816 for(int i = 0; i< 3;++i){
817 fKinkIndexes[i] = source.fKinkIndexes[i];
818 fV0Indexes[i] = source.fV0Indexes[i];
819 }
820
821 for(int i = 0; i< AliPID::kSPECIES;++i){
822 fR[i] = source.fR[i];
823 fITSr[i] = source.fITSr[i];
824 fTPCr[i] = source.fTPCr[i];
825 fTRDr[i] = source.fTRDr[i];
826 fTOFr[i] = source.fTOFr[i];
827 fHMPIDr[i] = source.fHMPIDr[i];
828 fTrackTime[i] = source.fTrackTime[i];
829 }
830
831 fHMPIDtrkTheta = source.fHMPIDtrkTheta;
832 fHMPIDtrkPhi = source.fHMPIDtrkPhi;
833 fHMPIDsignal = source.fHMPIDsignal;
834
835
836 fTrackLength = source. fTrackLength;
d7ddf1e9 837 fdTPC = source.fdTPC;
838 fzTPC = source.fzTPC;
839 fCddTPC = source.fCddTPC;
840 fCdzTPC = source.fCdzTPC;
841 fCzzTPC = source.fCzzTPC;
436dfe39 842 fCchi2TPC = source.fCchi2TPC;
843
732a24fe 844 fD = source.fD;
845 fZ = source.fZ;
846 fCdd = source.fCdd;
847 fCdz = source.fCdz;
848 fCzz = source.fCzz;
732a24fe 849 fCchi2 = source.fCchi2;
436dfe39 850
732a24fe 851 fITSchi2 = source.fITSchi2;
852 fTPCchi2 = source.fTPCchi2;
949840f6 853 fTPCchi2Iter1 = source.fTPCchi2Iter1;
732a24fe 854 fTRDchi2 = source.fTRDchi2;
855 fTOFchi2 = source.fTOFchi2;
856 fHMPIDchi2 = source.fHMPIDchi2;
857
b5b2b4db 858 fGlobalChi2 = source.fGlobalChi2;
732a24fe 859
860 fITSsignal = source.fITSsignal;
1d4882da 861 for (Int_t i=0;i<4;i++) {fITSdEdxSamples[i]=source.fITSdEdxSamples[i];}
732a24fe 862 fTPCsignal = source.fTPCsignal;
863 fTPCsignalS = source.fTPCsignalS;
864 for(int i = 0; i< 4;++i){
865 fTPCPoints[i] = source.fTPCPoints[i];
866 }
867 fTRDsignal = source.fTRDsignal;
868
6984f7c1 869 for(int i = 0;i < kTRDnPlanes;++i){
732a24fe 870 fTRDTimBin[i] = source.fTRDTimBin[i];
732a24fe 871 }
6984f7c1 872
873 if(fTRDnSlices)
874 delete[] fTRDslices;
875 fTRDslices=0;
876 fTRDnSlices=source.fTRDnSlices;
877 if (fTRDnSlices) {
878 fTRDslices=new Double32_t[fTRDnSlices];
879 for(int j = 0;j < fTRDnSlices;++j) fTRDslices[j] = source.fTRDslices[j];
880 }
881
732a24fe 882 fTRDQuality = source.fTRDQuality;
883 fTRDBudget = source.fTRDBudget;
884 fTOFsignal = source.fTOFsignal;
885 fTOFsignalToT = source.fTOFsignalToT;
886 fTOFsignalRaw = source.fTOFsignalRaw;
887 fTOFsignalDz = source.fTOFsignalDz;
a5d9ff0f 888 fTOFsignalDx = source.fTOFsignalDx;
d86081b1 889 fTOFdeltaBC = source.fTOFdeltaBC;
890 fTOFl0l1 = source.fTOFl0l1;
891
732a24fe 892 for(int i = 0;i<10;++i){
893 fTOFInfo[i] = source.fTOFInfo[i];
894 }
895
896 fHMPIDtrkX = source.fHMPIDtrkX;
897 fHMPIDtrkY = source.fHMPIDtrkY;
898 fHMPIDmipX = source.fHMPIDmipX;
899 fHMPIDmipY = source.fHMPIDmipY;
900
901 fTPCncls = source.fTPCncls;
902 fTPCnclsF = source.fTPCnclsF;
903 fTPCsignalN = source.fTPCsignalN;
949840f6 904 fTPCnclsIter1 = source.fTPCnclsIter1;
905 fTPCnclsFIter1 = source.fTPCnclsFIter1;
732a24fe 906
907 fITSncls = source.fITSncls;
908 fITSClusterMap = source.fITSClusterMap;
25015f7a 909 fITSSharedMap = source.fITSSharedMap;
732a24fe 910 fTRDncls = source.fTRDncls;
911 fTRDncls0 = source.fTRDncls0;
ed15ef4f 912 fTRDntracklets = source.fTRDntracklets;
6dc21f57 913 fVertexID = source.fVertexID;
732a24fe 914 return *this;
915}
916
917
918
919void AliESDtrack::Copy(TObject &obj) const {
920
921 // this overwrites the virtual TOBject::Copy()
922 // to allow run time copying without casting
923 // in AliESDEvent
924
925 if(this==&obj)return;
926 AliESDtrack *robj = dynamic_cast<AliESDtrack*>(&obj);
927 if(!robj)return; // not an AliESDtrack
928 *robj = *this;
929
930}
931
932
933
00dce61a 934void AliESDtrack::AddCalibObject(TObject * object){
935 //
936 // add calib object to the list
937 //
938 if (!fFriendTrack) fFriendTrack = new AliESDfriendTrack;
59c31692 939 if (!fFriendTrack) return;
00dce61a 940 fFriendTrack->AddCalibObject(object);
941}
942
943TObject * AliESDtrack::GetCalibObject(Int_t index){
944 //
945 // return calib objct at given position
946 //
947 if (!fFriendTrack) return 0;
948 return fFriendTrack->GetCalibObject(index);
949}
950
951
f12d42ce 952Bool_t AliESDtrack::FillTPCOnlyTrack(AliESDtrack &track){
b9ca886f 953
954 // Fills the information of the TPC-only first reconstruction pass
955 // into the passed ESDtrack object. For consistency fTPCInner is also filled
956 // again
957
5b305f70 958
959
960 // For data produced before r26675
961 // RelateToVertexTPC was not properly called during reco
962 // so you'll have to call it again, before FillTPCOnlyTrack
963 // Float_t p[2],cov[3];
964 // track->GetImpactParametersTPC(p,cov);
965 // if(p[0]==0&&p[1]==0) // <- Default values
966 // track->RelateToVertexTPC(esd->GetPrimaryVertexTPC(),esd->GetMagneticField(),kVeryBig);
967
968
b9ca886f 969 if(!fTPCInner)return kFALSE;
970
971 // fill the TPC track params to the global track parameters
972 track.Set(fTPCInner->GetX(),fTPCInner->GetAlpha(),fTPCInner->GetParameter(),fTPCInner->GetCovariance());
973 track.fD = fdTPC;
974 track.fZ = fzTPC;
975 track.fCdd = fCddTPC;
976 track.fCdz = fCdzTPC;
977 track.fCzz = fCzzTPC;
978
67ed91d3 979 // copy the inner params
980 if(track.fIp) *track.fIp = *fIp;
981 else track.fIp = new AliExternalTrackParam(*fIp);
982
b9ca886f 983 // copy the TPCinner parameters
984 if(track.fTPCInner) *track.fTPCInner = *fTPCInner;
985 else track.fTPCInner = new AliExternalTrackParam(*fTPCInner);
986 track.fdTPC = fdTPC;
987 track.fzTPC = fzTPC;
988 track.fCddTPC = fCddTPC;
989 track.fCdzTPC = fCdzTPC;
990 track.fCzzTPC = fCzzTPC;
436dfe39 991 track.fCchi2TPC = fCchi2TPC;
b9ca886f 992
b9ca886f 993 // copy all other TPC specific parameters
994
995 // replace label by TPC label
996 track.fLabel = fTPCLabel;
997 track.fTPCLabel = fTPCLabel;
998
999 track.fTPCchi2 = fTPCchi2;
949840f6 1000 track.fTPCchi2Iter1 = fTPCchi2Iter1;
b9ca886f 1001 track.fTPCsignal = fTPCsignal;
1002 track.fTPCsignalS = fTPCsignalS;
1003 for(int i = 0;i<4;++i)track.fTPCPoints[i] = fTPCPoints[i];
1004
1005 track.fTPCncls = fTPCncls;
1006 track.fTPCnclsF = fTPCnclsF;
1007 track.fTPCsignalN = fTPCsignalN;
949840f6 1008 track.fTPCnclsIter1 = fTPCnclsIter1;
1009 track.fTPCnclsFIter1 = fTPCnclsFIter1;
b9ca886f 1010
1011 // PID
1012 for(int i=0;i<AliPID::kSPECIES;++i){
1013 track.fTPCr[i] = fTPCr[i];
1014 // combined PID is TPC only!
1015 track.fR[i] = fTPCr[i];
1016 }
1017 track.fTPCClusterMap = fTPCClusterMap;
1018 track.fTPCSharedMap = fTPCSharedMap;
1019
1020
1021 // reset the flags
1022 track.fFlags = kTPCin;
1023 track.fID = fID;
1024
b1cfce51 1025 track.fFlags |= fFlags & kTPCpid; //copy the TPCpid status flag
b9ca886f 1026
1027 for (Int_t i=0;i<3;i++) track.fKinkIndexes[i] = fKinkIndexes[i];
1028
1029 return kTRUE;
1030
1031}
1032
9559cbc4 1033//_______________________________________________________________________
1034void AliESDtrack::MakeMiniESDtrack(){
1035 // Resets everything except
1036 // fFlags: Reconstruction status flags
1037 // fLabel: Track label
1038 // fID: Unique ID of the track
d7ddf1e9 1039 // Impact parameter information
9559cbc4 1040 // fR[AliPID::kSPECIES]: combined "detector response probability"
8497bca0 1041 // Running track parameters in the base class (AliExternalTrackParam)
9559cbc4 1042
1043 fTrackLength = 0;
562dd0b4 1044
9559cbc4 1045 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] = 0;
9559cbc4 1046
1047 // Reset track parameters constrained to the primary vertex
562dd0b4 1048 delete fCp;fCp = 0;
9559cbc4 1049
1050 // Reset track parameters at the inner wall of TPC
562dd0b4 1051 delete fIp;fIp = 0;
1052 delete fTPCInner;fTPCInner=0;
9559cbc4 1053 // Reset track parameters at the inner wall of the TRD
562dd0b4 1054 delete fOp;fOp = 0;
c38d443f 1055 // Reset track parameters at the HMPID
1056 delete fHMPIDp;fHMPIDp = 0;
562dd0b4 1057
9559cbc4 1058
1059 // Reset ITS track related information
1060 fITSchi2 = 0;
9559cbc4 1061 fITSncls = 0;
62665e7f 1062 fITSClusterMap=0;
25015f7a 1063 fITSSharedMap=0;
9559cbc4 1064 fITSsignal = 0;
1d4882da 1065 for (Int_t i=0;i<4;i++) fITSdEdxSamples[i] = 0.;
ef7253ac 1066 for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=0;
9559cbc4 1067 fITSLabel = 0;
9559cbc4 1068
1069 // Reset TPC related track information
1070 fTPCchi2 = 0;
949840f6 1071 fTPCchi2Iter1 = 0;
9559cbc4 1072 fTPCncls = 0;
e1d4c1b5 1073 fTPCnclsF = 0;
949840f6 1074 fTPCnclsIter1 = 0;
1075 fTPCnclsFIter1 = 0;
9559cbc4 1076 fTPCClusterMap = 0;
eb7f6854 1077 fTPCSharedMap = 0;
9559cbc4 1078 fTPCsignal= 0;
e1d4c1b5 1079 fTPCsignalS= 0;
1080 fTPCsignalN= 0;
9559cbc4 1081 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0;
1082 fTPCLabel=0;
1083 for (Int_t i=0;i<4;i++) fTPCPoints[i] = 0;
1084 for (Int_t i=0; i<3;i++) fKinkIndexes[i] = 0;
1085 for (Int_t i=0; i<3;i++) fV0Indexes[i] = 0;
1086
1087 // Reset TRD related track information
1088 fTRDchi2 = 0;
1089 fTRDncls = 0;
1090 fTRDncls0 = 0;
9559cbc4 1091 fTRDsignal = 0;
6984f7c1 1092 for (Int_t i=0;i<kTRDnPlanes;i++) {
6d45eaef 1093 fTRDTimBin[i] = 0;
9559cbc4 1094 }
1095 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i] = 0;
1096 fTRDLabel = 0;
9559cbc4 1097 fTRDQuality = 0;
ed15ef4f 1098 fTRDntracklets = 0;
6984f7c1 1099 if(fTRDnSlices)
1100 delete[] fTRDslices;
1101 fTRDslices=0x0;
1102 fTRDnSlices=0;
23d49657 1103 fTRDBudget = 0;
9559cbc4 1104
1105 // Reset TOF related track information
1106 fTOFchi2 = 0;
ce3f4882 1107 fTOFindex = -1;
ab37ab1e 1108 fTOFsignal = 99999;
1109 fTOFCalChannel = -1;
1110 fTOFsignalToT = 99999;
1111 fTOFsignalRaw = 99999;
1112 fTOFsignalDz = 999;
1113 fTOFsignalDx = 999;
1114 fTOFdeltaBC = 999;
1115 fTOFl0l1 = 999;
9559cbc4 1116 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i] = 0;
ab37ab1e 1117 for (Int_t i=0;i<3;i++) fTOFLabel[i] = -1;
9559cbc4 1118 for (Int_t i=0;i<10;i++) fTOFInfo[i] = 0;
1119
f4b3bbb7 1120 // Reset HMPID related track information
1121 fHMPIDchi2 = 0;
562dd0b4 1122 fHMPIDqn = 0;
81aa7a0d 1123 fHMPIDcluIdx = -1;
f4b3bbb7 1124 fHMPIDsignal = 0;
1125 for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i] = 0;
562dd0b4 1126 fHMPIDtrkTheta = 0;
1127 fHMPIDtrkPhi = 0;
1128 fHMPIDtrkX = 0;
1129 fHMPIDtrkY = 0;
1130 fHMPIDmipX = 0;
1131 fHMPIDmipY = 0;
f1cedef3 1132 fCaloIndex = kEMCALNoMatch;
9559cbc4 1133
b5b2b4db 1134 // reset global track chi2
1135 fGlobalChi2 = 0;
1136
6dc21f57 1137 fVertexID = -2; // an orphan track
1138
15e85efa 1139 delete fFriendTrack; fFriendTrack = 0;
9559cbc4 1140}
ec729fb0 1141
bf7942ff 1142//_______________________________________________________________________
1143Int_t AliESDtrack::GetPID() const
1144{
1145 // Returns the particle most probable id
ec729fb0 1146 Int_t i;
bf7942ff 1147 for (i=0; i<AliPID::kSPECIES-1; i++) if (fR[i] != fR[i+1]) break;
1148 //
1149 if (i == AliPID::kSPECIES-1) return AliPID::kPion; // If all the probabilities are equal, return the pion mass
1150 //
ae982df3 1151 Float_t max=0.;
1152 Int_t k=-1;
bf7942ff 1153 for (i=0; i<AliPID::kSPECIES; i++) if (fR[i]>max) {k=i; max=fR[i];}
1154 //
db3989b3 1155 if (k==0) { // dE/dx "crossing points" in the TPC
bf7942ff 1156 Double_t p=GetP();
1157 if ((p>0.38)&&(p<0.48))
1158 if (fR[0]<fR[3]*10.) return AliPID::kKaon;
1159 if ((p>0.75)&&(p<0.85))
1160 if (fR[0]<fR[4]*10.) return AliPID::kProton;
1161 return AliPID::kElectron;
db3989b3 1162 }
bf7942ff 1163 if (k==1) return AliPID::kMuon;
1164 if (k==2||k==-1) return AliPID::kPion;
1165 if (k==3) return AliPID::kKaon;
1166 if (k==4) return AliPID::kProton;
1167 AliWarning("Undefined PID !");
1168 return AliPID::kPion;
1169}
1170
1171//_______________________________________________________________________
a512bf97 1172Int_t AliESDtrack::GetTOFBunchCrossing(Double_t b) const
bf7942ff 1173{
1174 // Returns the number of bunch crossings after trigger (assuming 25ns spacing)
bf7942ff 1175 const double kSpacing = 25e3; // min interbanch spacing
1176 const double kShift = 0;
1177 Int_t bcid = -1; // defualt one
a512bf97 1178 if (!IsOn(kTOFout) || !IsOn(kESDpid)) return bcid; // no info
1179 //
1180 double tdif = fTOFsignal;
1181 if (IsOn(kTIME)) { // integrated time info is there
1182 int pid = GetPID();
1183 tdif -= fTrackTime[pid];
1184 }
1185 else { // assume integrated time info from TOF radius and momentum
1186 const double kRTOF = 385.;
1187 const double kCSpeed = 3.e-2; // cm/ps
1188 double p = GetP();
1189 if (p<0.01) return bcid;
1190 double m = GetMass();
1191 double curv = GetC(b);
1192 double path = TMath::Abs(curv)>kAlmost0 ? // account for curvature
1193 2./curv*TMath::ASin(kRTOF*curv/2.)*TMath::Sqrt(1.+GetTgl()*GetTgl()) : kRTOF;
1194 tdif -= path/kCSpeed*TMath::Sqrt(1.+m*m/(p*p));
1195 }
bf7942ff 1196 bcid = TMath::Nint((tdif - kShift)/kSpacing);
1197 return bcid;
ae982df3 1198}
1199
6b5b49c9 1200//______________________________________________________________________________
1201Double_t AliESDtrack::M() const
1202{
2850a7f3 1203 // Returns the assumed mass
1204 // (the pion mass, if the particle can't be identified properly).
9be82450 1205 static Bool_t printerr=kTRUE;
1206 if (printerr) {
1207 AliWarning("WARNING !!! ... THIS WILL BE PRINTED JUST ONCE !!!");
1208 printerr = kFALSE;
1209 AliWarning("This is the ESD mass. Use it with care !");
1210 }
6b5b49c9 1211 return GetMass();
1212}
1213
aad8d435 1214//______________________________________________________________________________
1215Double_t AliESDtrack::E() const
1216{
1217 // Returns the energy of the particle given its assumed mass.
1218 // Assumes the pion mass if the particle can't be identified properly.
1219
1220 Double_t m = M();
1221 Double_t p = P();
1222 return TMath::Sqrt(p*p + m*m);
1223}
1224
1225//______________________________________________________________________________
1226Double_t AliESDtrack::Y() const
1227{
1228 // Returns the rapidity of a particle given its assumed mass.
1229 // Assumes the pion mass if the particle can't be identified properly.
1230
1231 Double_t e = E();
1232 Double_t pz = Pz();
e03e4544 1233 if (e != TMath::Abs(pz)) { // energy was not equal to pz
aad8d435 1234 return 0.5*TMath::Log((e+pz)/(e-pz));
1235 } else { // energy was equal to pz
1236 return -999.;
1237 }
1238}
1239
ae982df3 1240//_______________________________________________________________________
c9ec41e8 1241Bool_t AliESDtrack::UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags){
ae982df3 1242 //
1243 // This function updates track's running parameters
1244 //
15614b8b 1245 Bool_t rc=kTRUE;
1246
9b859005 1247 SetStatus(flags);
1248 fLabel=t->GetLabel();
1249
1250 if (t->IsStartedTimeIntegral()) {
1251 SetStatus(kTIME);
1252 Double_t times[10];t->GetIntegratedTimes(times); SetIntegratedTimes(times);
1253 SetIntegratedLength(t->GetIntegratedLength());
1254 }
1255
6c94f330 1256 Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
59c31692 1257 if (fFriendTrack) {
ded25cc6 1258 if (flags==kITSout) fFriendTrack->SetITSOut(*t);
1259 if (flags==kTPCout) fFriendTrack->SetTPCOut(*t);
fae4c212 1260 if (flags==kTRDrefit) fFriendTrack->SetTRDIn(*t);
59c31692 1261 }
e1d4c1b5 1262
ae982df3 1263 switch (flags) {
ad2f1f2b 1264
9b859005 1265 case kITSin: case kITSout: case kITSrefit:
6d3a7bbf 1266 {
48704648 1267 fITSClusterMap=0;
ae982df3 1268 fITSncls=t->GetNumberOfClusters();
59c31692 1269 if (fFriendTrack) {
6d3a7bbf 1270 Int_t* indexITS = new Int_t[AliESDfriendTrack::kMaxITScluster];
62665e7f 1271 for (Int_t i=0;i<AliESDfriendTrack::kMaxITScluster;i++) {
6d3a7bbf 1272 indexITS[i]=t->GetClusterIndex(i);
1273
62665e7f 1274 if (i<fITSncls) {
6d3a7bbf 1275 Int_t l=(indexITS[i] & 0xf0000000) >> 28;
62665e7f 1276 SETBIT(fITSClusterMap,l);
1277 }
1278 }
6d3a7bbf 1279 fFriendTrack->SetITSIndices(indexITS,AliESDfriendTrack::kMaxITScluster);
1280 delete [] indexITS;
59c31692 1281 }
6d3a7bbf 1282
ae982df3 1283 fITSchi2=t->GetChi2();
ae982df3 1284 fITSsignal=t->GetPIDsignal();
6e5b1b04 1285 fITSLabel = t->GetLabel();
57483eb1 1286 // keep in fOp the parameters outside ITS for ITS stand-alone tracks
1287 if (flags==kITSout) {
1288 if (!fOp) fOp=new AliExternalTrackParam(*t);
1289 else
1290 fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
ded25cc6 1291 }
6d3a7bbf 1292 }
ae982df3 1293 break;
ad2f1f2b 1294
9b859005 1295 case kTPCin: case kTPCrefit:
6d3a7bbf 1296 {
6e5b1b04 1297 fTPCLabel = t->GetLabel();
949840f6 1298 if (flags==kTPCin) {
1299 fTPCInner=new AliExternalTrackParam(*t);
1300 fTPCnclsIter1=t->GetNumberOfClusters();
1301 fTPCchi2Iter1=t->GetChi2();
1302 }
c9ec41e8 1303 if (!fIp) fIp=new AliExternalTrackParam(*t);
6c94f330 1304 else
1305 fIp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
6d3a7bbf 1306 }
9b859005 1307 case kTPCout:
6d3a7bbf 1308 {
1d303a24 1309 if (flags & kTPCout){
1310 if (!fOp) fOp=new AliExternalTrackParam(*t);
6c94f330 1311 else
1312 fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
1d303a24 1313 }
e1d4c1b5 1314 fTPCncls=t->GetNumberOfClusters();
ae982df3 1315 fTPCchi2=t->GetChi2();
a866ac60 1316
59c31692 1317 if (fFriendTrack)
a866ac60 1318 {//prevrow must be declared in separate namespace, otherwise compiler cries:
1319 //"jump to case label crosses initialization of `Int_t prevrow'"
59c31692 1320 Int_t* indexTPC = new Int_t[AliESDfriendTrack::kMaxTPCcluster];
a866ac60 1321 Int_t prevrow = -1;
6e5b1b04 1322 // for (Int_t i=0;i<fTPCncls;i++)
15e85efa 1323 for (Int_t i=0;i<AliESDfriendTrack::kMaxTPCcluster;i++)
a866ac60 1324 {
6d3a7bbf 1325 indexTPC[i]=t->GetClusterIndex(i);
1326 Int_t idx = indexTPC[i];
a866ac60 1327
15e85efa 1328 if (idx<0) continue;
9fe5b2ff 1329
a866ac60 1330 // Piotr's Cluster Map for HBT
1331 // ### please change accordingly if cluster array is changing
1332 // to "New TPC Tracking" style (with gaps in array)
a866ac60 1333 Int_t sect = (idx&0xff000000)>>24;
1334 Int_t row = (idx&0x00ff0000)>>16;
1335 if (sect > 18) row +=63; //if it is outer sector, add number of inner sectors
1336
1337 fTPCClusterMap.SetBitNumber(row,kTRUE);
1338
1339 //Fill the gap between previous row and this row with 0 bits
1340 //In case ### pleas change it as well - just set bit 0 in case there
1341 //is no associated clusters for current "i"
1342 if (prevrow < 0)
1343 {
1344 prevrow = row;//if previous bit was not assigned yet == this is the first one
1345 }
1346 else
1347 { //we don't know the order (inner to outer or reverse)
1348 //just to be save in case it is going to change
1349 Int_t n = 0, m = 0;
1350 if (prevrow < row)
1351 {
1352 n = prevrow;
1353 m = row;
1354 }
1355 else
1356 {
1357 n = row;
1358 m = prevrow;
1359 }
1360
1361 for (Int_t j = n+1; j < m; j++)
1362 {
1363 fTPCClusterMap.SetBitNumber(j,kFALSE);
1364 }
1365 prevrow = row;
1366 }
1367 // End Of Piotr's Cluster Map for HBT
1368 }
6d3a7bbf 1369 fFriendTrack->SetTPCIndices(indexTPC,AliESDfriendTrack::kMaxTPCcluster);
1370 delete [] indexTPC;
1371
a866ac60 1372 }
ae982df3 1373 fTPCsignal=t->GetPIDsignal();
6d3a7bbf 1374 }
ae982df3 1375 break;
9b859005 1376
64130601 1377 case kTRDin: case kTRDrefit:
1378 break;
1379 case kTRDout:
6d3a7bbf 1380 {
51ad6848 1381 fTRDLabel = t->GetLabel();
2f83b7a6 1382 fTRDchi2 = t->GetChi2();
1383 fTRDncls = t->GetNumberOfClusters();
59c31692 1384 if (fFriendTrack) {
6d3a7bbf 1385 Int_t* indexTRD = new Int_t[AliESDfriendTrack::kMaxTRDcluster];
1386 for (Int_t i=0;i<AliESDfriendTrack::kMaxTRDcluster;i++) indexTRD[i]=-2;
1387 for (Int_t i=0;i<6;i++) indexTRD[i]=t->GetTrackletIndex(i);
1388 fFriendTrack->SetTRDIndices(indexTRD,AliESDfriendTrack::kMaxTRDcluster);
1389 delete [] indexTRD;
59c31692 1390 }
5bc3e158 1391
79e94bf8 1392 fTRDsignal=t->GetPIDsignal();
6d3a7bbf 1393 }
79e94bf8 1394 break;
c4d11b15 1395 case kTRDbackup:
c9ec41e8 1396 if (!fOp) fOp=new AliExternalTrackParam(*t);
6c94f330 1397 else
1398 fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
c4d11b15 1399 fTRDncls0 = t->GetNumberOfClusters();
1400 break;
1401 case kTOFin:
1402 break;
1403 case kTOFout:
1404 break;
d0862fea 1405 case kTRDStop:
1406 break;
c38d443f 1407 case kHMPIDout:
1408 if (!fHMPIDp) fHMPIDp=new AliExternalTrackParam(*t);
1409 else
1410 fHMPIDp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
1411 break;
ae982df3 1412 default:
5f7789fc 1413 AliError("Wrong flag !");
ae982df3 1414 return kFALSE;
1415 }
1416
15614b8b 1417 return rc;
ae982df3 1418}
1419
1420//_______________________________________________________________________
1421void AliESDtrack::GetExternalParameters(Double_t &x, Double_t p[5]) const {
1422 //---------------------------------------------------------------------
1423 // This function returns external representation of the track parameters
1424 //---------------------------------------------------------------------
c9ec41e8 1425 x=GetX();
1426 for (Int_t i=0; i<5; i++) p[i]=GetParameter()[i];
15614b8b 1427}
1428
67c3dcbe 1429//_______________________________________________________________________
a866ac60 1430void AliESDtrack::GetExternalCovariance(Double_t cov[15]) const {
67c3dcbe 1431 //---------------------------------------------------------------------
1432 // This function returns external representation of the cov. matrix
1433 //---------------------------------------------------------------------
c9ec41e8 1434 for (Int_t i=0; i<15; i++) cov[i]=AliExternalTrackParam::GetCovariance()[i];
67c3dcbe 1435}
1436
67c3dcbe 1437//_______________________________________________________________________
c0b978f0 1438Bool_t AliESDtrack::GetConstrainedExternalParameters
1439 (Double_t &alpha, Double_t &x, Double_t p[5]) const {
67c3dcbe 1440 //---------------------------------------------------------------------
1441 // This function returns the constrained external track parameters
1442 //---------------------------------------------------------------------
c0b978f0 1443 if (!fCp) return kFALSE;
1444 alpha=fCp->GetAlpha();
c9ec41e8 1445 x=fCp->GetX();
1446 for (Int_t i=0; i<5; i++) p[i]=fCp->GetParameter()[i];
c0b978f0 1447 return kTRUE;
67c3dcbe 1448}
c9ec41e8 1449
67c3dcbe 1450//_______________________________________________________________________
c0b978f0 1451Bool_t
67c3dcbe 1452AliESDtrack::GetConstrainedExternalCovariance(Double_t c[15]) const {
1453 //---------------------------------------------------------------------
1454 // This function returns the constrained external cov. matrix
1455 //---------------------------------------------------------------------
c0b978f0 1456 if (!fCp) return kFALSE;
c9ec41e8 1457 for (Int_t i=0; i<15; i++) c[i]=fCp->GetCovariance()[i];
c0b978f0 1458 return kTRUE;
67c3dcbe 1459}
1460
c0b978f0 1461Bool_t
1462AliESDtrack::GetInnerExternalParameters
1463 (Double_t &alpha, Double_t &x, Double_t p[5]) const {
1464 //---------------------------------------------------------------------
c9ec41e8 1465 // This function returns external representation of the track parameters
1466 // at the inner layer of TPC
9b859005 1467 //---------------------------------------------------------------------
c0b978f0 1468 if (!fIp) return kFALSE;
1469 alpha=fIp->GetAlpha();
c9ec41e8 1470 x=fIp->GetX();
1471 for (Int_t i=0; i<5; i++) p[i]=fIp->GetParameter()[i];
c0b978f0 1472 return kTRUE;
9b859005 1473}
1474
c0b978f0 1475Bool_t
1476AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const {
c9ec41e8 1477 //---------------------------------------------------------------------
1478 // This function returns external representation of the cov. matrix
1479 // at the inner layer of TPC
1480 //---------------------------------------------------------------------
c0b978f0 1481 if (!fIp) return kFALSE;
c9ec41e8 1482 for (Int_t i=0; i<15; i++) cov[i]=fIp->GetCovariance()[i];
c0b978f0 1483 return kTRUE;
9b859005 1484}
1485
d61ca12d 1486void
1487AliESDtrack::SetOuterParam(const AliExternalTrackParam *p, ULong_t flags) {
1488 //
1489 // This is a direct setter for the outer track parameters
1490 //
1491 SetStatus(flags);
1492 if (fOp) delete fOp;
1493 fOp=new AliExternalTrackParam(*p);
1494}
1495
c38d443f 1496void
1497AliESDtrack::SetOuterHmpParam(const AliExternalTrackParam *p, ULong_t flags) {
1498 //
1499 // This is a direct setter for the outer track parameters
1500 //
1501 SetStatus(flags);
1502 if (fHMPIDp) delete fHMPIDp;
1503 fHMPIDp=new AliExternalTrackParam(*p);
1504}
1505
c0b978f0 1506Bool_t
1507AliESDtrack::GetOuterExternalParameters
1508 (Double_t &alpha, Double_t &x, Double_t p[5]) const {
1509 //---------------------------------------------------------------------
c9ec41e8 1510 // This function returns external representation of the track parameters
1511 // at the inner layer of TRD
a866ac60 1512 //---------------------------------------------------------------------
c0b978f0 1513 if (!fOp) return kFALSE;
1514 alpha=fOp->GetAlpha();
c9ec41e8 1515 x=fOp->GetX();
1516 for (Int_t i=0; i<5; i++) p[i]=fOp->GetParameter()[i];
c0b978f0 1517 return kTRUE;
a866ac60 1518}
c9ec41e8 1519
c38d443f 1520Bool_t
1521AliESDtrack::GetOuterHmpExternalParameters
1522 (Double_t &alpha, Double_t &x, Double_t p[5]) const {
1523 //---------------------------------------------------------------------
1524 // This function returns external representation of the track parameters
1525 // at the inner layer of TRD
1526 //---------------------------------------------------------------------
1527 if (!fHMPIDp) return kFALSE;
1528 alpha=fHMPIDp->GetAlpha();
1529 x=fHMPIDp->GetX();
1530 for (Int_t i=0; i<5; i++) p[i]=fHMPIDp->GetParameter()[i];
1531 return kTRUE;
1532}
1533
c0b978f0 1534Bool_t
1535AliESDtrack::GetOuterExternalCovariance(Double_t cov[15]) const {
a866ac60 1536 //---------------------------------------------------------------------
c9ec41e8 1537 // This function returns external representation of the cov. matrix
1538 // at the inner layer of TRD
a866ac60 1539 //---------------------------------------------------------------------
c0b978f0 1540 if (!fOp) return kFALSE;
c9ec41e8 1541 for (Int_t i=0; i<15; i++) cov[i]=fOp->GetCovariance()[i];
c0b978f0 1542 return kTRUE;
a866ac60 1543}
1544
c38d443f 1545Bool_t
1546AliESDtrack::GetOuterHmpExternalCovariance(Double_t cov[15]) const {
1547 //---------------------------------------------------------------------
1548 // This function returns external representation of the cov. matrix
1549 // at the inner layer of TRD
1550 //---------------------------------------------------------------------
1551 if (!fHMPIDp) return kFALSE;
1552 for (Int_t i=0; i<15; i++) cov[i]=fHMPIDp->GetCovariance()[i];
1553 return kTRUE;
1554}
1555
98937d93 1556Int_t AliESDtrack::GetNcls(Int_t idet) const
1557{
1558 // Get number of clusters by subdetector index
1559 //
1560 Int_t ncls = 0;
1561 switch(idet){
1562 case 0:
1563 ncls = fITSncls;
1564 break;
1565 case 1:
1566 ncls = fTPCncls;
1567 break;
1568 case 2:
1569 ncls = fTRDncls;
1570 break;
1571 case 3:
ce3f4882 1572 if (fTOFindex != -1)
98937d93 1573 ncls = 1;
1574 break;
81aa7a0d 1575 case 4: //PHOS
1576 break;
1577 case 5: //HMPID
1578 if ((fHMPIDcluIdx >= 0) && (fHMPIDcluIdx < 7000000)) {
1579 if ((fHMPIDcluIdx%1000000 != 9999) && (fHMPIDcluIdx%1000000 != 99999)) {
1580 ncls = 1;
1581 }
1582 }
1583 break;
98937d93 1584 default:
1585 break;
1586 }
1587 return ncls;
1588}
1589
ef7253ac 1590Int_t AliESDtrack::GetClusters(Int_t idet, Int_t *idx) const
98937d93 1591{
1592 // Get cluster index array by subdetector index
1593 //
1594 Int_t ncls = 0;
1595 switch(idet){
1596 case 0:
1597 ncls = GetITSclusters(idx);
1598 break;
1599 case 1:
ef7253ac 1600 ncls = GetTPCclusters(idx);
98937d93 1601 break;
1602 case 2:
1603 ncls = GetTRDclusters(idx);
1604 break;
1605 case 3:
ce3f4882 1606 if (fTOFindex != -1) {
1607 idx[0] = fTOFindex;
98937d93 1608 ncls = 1;
1609 }
1610 break;
313af949 1611 case 4: //PHOS
1612 break;
1613 case 5:
81aa7a0d 1614 if ((fHMPIDcluIdx >= 0) && (fHMPIDcluIdx < 7000000)) {
1615 if ((fHMPIDcluIdx%1000000 != 9999) && (fHMPIDcluIdx%1000000 != 99999)) {
1616 idx[0] = GetHMPIDcluIdx();
1617 ncls = 1;
1618 }
313af949 1619 }
1620 break;
1621 case 6: //EMCAL
1622 break;
98937d93 1623 default:
1624 break;
1625 }
1626 return ncls;
1627}
1628
ae982df3 1629//_______________________________________________________________________
1630void AliESDtrack::GetIntegratedTimes(Double_t *times) const {
4427806c 1631 // Returns the array with integrated times for each particle hypothesis
304864ab 1632 for (Int_t i=0; i<AliPID::kSPECIES; i++) times[i]=fTrackTime[i];
ae982df3 1633}
1634
1635//_______________________________________________________________________
1636void AliESDtrack::SetIntegratedTimes(const Double_t *times) {
4427806c 1637 // Sets the array with integrated times for each particle hypotesis
304864ab 1638 for (Int_t i=0; i<AliPID::kSPECIES; i++) fTrackTime[i]=times[i];
ae982df3 1639}
1640
c630aafd 1641//_______________________________________________________________________
4427806c 1642void AliESDtrack::SetITSpid(const Double_t *p) {
1643 // Sets values for the probability of each particle type (in ITS)
d27bbc79 1644 SetPIDValues(fITSr,p,AliPID::kSPECIES);
c630aafd 1645 SetStatus(AliESDtrack::kITSpid);
1646}
1647
1648//_______________________________________________________________________
1649void AliESDtrack::GetITSpid(Double_t *p) const {
4427806c 1650 // Gets the probability of each particle type (in ITS)
304864ab 1651 for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fITSr[i];
c630aafd 1652}
1653
ae982df3 1654//_______________________________________________________________________
562dd0b4 1655Char_t AliESDtrack::GetITSclusters(Int_t *idx) const {
ae982df3 1656 //---------------------------------------------------------------------
1657 // This function returns indices of the assgined ITS clusters
1658 //---------------------------------------------------------------------
59c31692 1659 if (idx && fFriendTrack) {
6d3a7bbf 1660 Int_t *index=fFriendTrack->GetITSindices();
1661 for (Int_t i=0; i<AliESDfriendTrack::kMaxITScluster; i++) {
1662 if ( (i>=fITSncls) && (i<6) ) idx[i]=-1;
1663 else {
1664 if (index) {
1665 idx[i]=index[i];
1666 }
1667 else idx[i]= -2;
1668 }
1669 }
15e85efa 1670 }
ae982df3 1671 return fITSncls;
1672}
1673
89f1b176 1674//_______________________________________________________________________
1675Bool_t AliESDtrack::GetITSModuleIndexInfo(Int_t ilayer,Int_t &idet,Int_t &status,
1676 Float_t &xloc,Float_t &zloc) const {
1677 //----------------------------------------------------------------------
1678 // This function encodes in the module number also the status of cluster association
1679 // "status" can have the following values:
1680 // 1 "found" (cluster is associated),
1681 // 2 "dead" (module is dead from OCDB),
1682 // 3 "skipped" (module or layer forced to be skipped),
1683 // 4 "outinz" (track out of z acceptance),
1684 // 5 "nocls" (no clusters in the road),
1685 // 6 "norefit" (cluster rejected during refit),
1686 // 7 "deadzspd" (holes in z in SPD)
1687 // Also given are the coordinates of the crossing point of track and module
1688 // (in the local module ref. system)
1689 // WARNING: THIS METHOD HAS TO BE SYNCHRONIZED WITH AliITStrackV2::GetModuleIndexInfo()!
1690 //----------------------------------------------------------------------
1691
1692 if(fITSModule[ilayer]==-1) {
89f1b176 1693 idet = -1;
1694 status=0;
1695 xloc=-99.; zloc=-99.;
1696 return kFALSE;
1697 }
1698
1699 Int_t module = fITSModule[ilayer];
1700
1701 idet = Int_t(module/1000000);
1702
1703 module -= idet*1000000;
1704
1705 status = Int_t(module/100000);
1706
1707 module -= status*100000;
1708
1709 Int_t signs = Int_t(module/10000);
1710
1711 module-=signs*10000;
1712
1713 Int_t xInt = Int_t(module/100);
1714 module -= xInt*100;
1715
1716 Int_t zInt = module;
1717
1718 if(signs==1) { xInt*=1; zInt*=1; }
1719 if(signs==2) { xInt*=1; zInt*=-1; }
1720 if(signs==3) { xInt*=-1; zInt*=1; }
1721 if(signs==4) { xInt*=-1; zInt*=-1; }
1722
1723 xloc = 0.1*(Float_t)xInt;
1724 zloc = 0.1*(Float_t)zInt;
1725
1726 if(status==4) idet = -1;
1727
1728 return kTRUE;
1729}
1730
ae982df3 1731//_______________________________________________________________________
562dd0b4 1732UShort_t AliESDtrack::GetTPCclusters(Int_t *idx) const {
ae982df3 1733 //---------------------------------------------------------------------
1734 // This function returns indices of the assgined ITS clusters
1735 //---------------------------------------------------------------------
59c31692 1736 if (idx && fFriendTrack) {
15e85efa 1737 Int_t *index=fFriendTrack->GetTPCindices();
6d3a7bbf 1738
1739 if (index){
1740 for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=index[i];
1741 }
1742 else {
1743 for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=-2;
1744 }
15e85efa 1745 }
ae982df3 1746 return fTPCncls;
1747}
8c6a71ab 1748
6a6f0c1f 1749//_______________________________________________________________________
204022f3 1750Float_t AliESDtrack::GetTPCClusterInfo(Int_t nNeighbours/*=3*/, Int_t type/*=0*/, Int_t row0, Int_t row1) const
6a6f0c1f 1751{
1752 //
1753 // TPC cluster information
1754 // type 0: get fraction of found/findable clusters with neighbourhood definition
1755 // 1: findable clusters with neighbourhood definition
1756 // 2: found clusters
1757 //
1758 // definition of findable clusters:
1759 // a cluster is defined as findable if there is another cluster
1760 // within +- nNeighbours pad rows. The idea is to overcome threshold
1761 // effects with a very simple algorithm.
1762 //
1763
1764 if (type==2) return fTPCClusterMap.CountBits();
1765
1766 Int_t found=0;
1767 Int_t findable=0;
1768 Int_t last=-nNeighbours;
1769
59c31692 1770 Int_t upperBound=fTPCClusterMap.GetNbits();
1771 if (upperBound>row1) upperBound=row1;
1772 for (Int_t i=row0; i<upperBound; ++i){
6a6f0c1f 1773 //look to current row
1774 if (fTPCClusterMap[i]) {
1775 last=i;
1776 ++found;
1777 ++findable;
1778 continue;
1779 }
1780 //look to nNeighbours before
1781 if ((i-last)<=nNeighbours) {
1782 ++findable;
1783 continue;
1784 }
1785 //look to nNeighbours after
1786 for (Int_t j=i+1; j<i+1+nNeighbours; ++j){
1787 if (fTPCClusterMap[j]){
1788 ++findable;
1789 break;
1790 }
1791 }
1792 }
82cc468e 1793 if (type==1) return findable;
1794
6a6f0c1f 1795 if (type==0){
82cc468e 1796 Float_t fraction=0;
1797 if (findable>0)
1798 fraction=(Float_t)found/(Float_t)findable;
1799 else
1800 fraction=0;
1801 return fraction;
1802 }
1803 return 0; // undefined type - default value
6a6f0c1f 1804}
1805
1806//_______________________________________________________________________
562dd0b4 1807Double_t AliESDtrack::GetTPCdensity(Int_t row0, Int_t row1) const{
81e97e0d 1808 //
1809 // GetDensity of the clusters on given region between row0 and row1
1810 // Dead zone effect takin into acoount
1811 //
59c31692 1812 if (!fFriendTrack) return 0.0;
81e97e0d 1813 Int_t good = 0;
1814 Int_t found = 0;
1815 //
15e85efa 1816 Int_t *index=fFriendTrack->GetTPCindices();
81e97e0d 1817 for (Int_t i=row0;i<=row1;i++){
15e85efa 1818 Int_t idx = index[i];
1819 if (idx!=-1) good++; // track outside of dead zone
1820 if (idx>0) found++;
81e97e0d 1821 }
1822 Float_t density=0.5;
1823 if (good>(row1-row0)*0.5) density = Float_t(found)/Float_t(good);
1824 return density;
1825}
c84a5e9e 1826
8c6a71ab 1827//_______________________________________________________________________
1828void AliESDtrack::SetTPCpid(const Double_t *p) {
4427806c 1829 // Sets values for the probability of each particle type (in TPC)
d27bbc79 1830 SetPIDValues(fTPCr,p,AliPID::kSPECIES);
8c6a71ab 1831 SetStatus(AliESDtrack::kTPCpid);
1832}
1833
1834//_______________________________________________________________________
1835void AliESDtrack::GetTPCpid(Double_t *p) const {
4427806c 1836 // Gets the probability of each particle type (in TPC)
304864ab 1837 for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTPCr[i];
8c6a71ab 1838}
1839
bb2ceb1f 1840//_______________________________________________________________________
562dd0b4 1841UChar_t AliESDtrack::GetTRDclusters(Int_t *idx) const {
bb2ceb1f 1842 //---------------------------------------------------------------------
1843 // This function returns indices of the assgined TRD clusters
1844 //---------------------------------------------------------------------
59c31692 1845 if (idx && fFriendTrack) {
6d3a7bbf 1846 Int_t *index=fFriendTrack->GetTRDindices();
1847
1848 if (index) {
1849 for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=index[i];
1850 }
1851 else {
1852 for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=-2;
1853 }
15e85efa 1854 }
bb2ceb1f 1855 return fTRDncls;
1856}
1857
5bc3e158 1858//_______________________________________________________________________
1859UChar_t AliESDtrack::GetTRDtracklets(Int_t *idx) const {
0ad488b0 1860//
1861// This function returns the number of TRD tracklets used in tracking
1862// and it fills the indices of these tracklets in the array "idx" as they
1863// are registered in the TRD track list.
1864//
1865// Caution :
1866// 1. The idx array has to be allocated with a size >= AliESDtrack::kTRDnPlanes
1867// 2. The idx array store not only the index but also the layer of the tracklet.
1868// Therefore tracks with TRD gaps contain default values for indices [-1]
1869
59c31692 1870 if (!fFriendTrack) return 0;
0ad488b0 1871 if (!idx) return GetTRDntracklets();
6d3a7bbf 1872 Int_t *index=fFriendTrack->GetTRDindices();
1873 Int_t n = 0;
0ad488b0 1874 for (Int_t i=0; i<kTRDnPlanes; i++){
6d3a7bbf 1875 if (index){
1876 if(index[i]>=0) n++;
1877 idx[i]=index[i];
1878 }
1879 else idx[i] = -2;
5bc3e158 1880 }
0ad488b0 1881 return n;
5bc3e158 1882}
1883
c630aafd 1884//_______________________________________________________________________
1885void AliESDtrack::SetTRDpid(const Double_t *p) {
4427806c 1886 // Sets values for the probability of each particle type (in TRD)
d27bbc79 1887 SetPIDValues(fTRDr,p,AliPID::kSPECIES);
c630aafd 1888 SetStatus(AliESDtrack::kTRDpid);
1889}
1890
1891//_______________________________________________________________________
1892void AliESDtrack::GetTRDpid(Double_t *p) const {
4427806c 1893 // Gets the probability of each particle type (in TRD)
304864ab 1894 for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTRDr[i];
c630aafd 1895}
1896
79e94bf8 1897//_______________________________________________________________________
1898void AliESDtrack::SetTRDpid(Int_t iSpecies, Float_t p)
1899{
4427806c 1900 // Sets the probability of particle type iSpecies to p (in TRD)
79e94bf8 1901 fTRDr[iSpecies] = p;
1902}
1903
562dd0b4 1904Double_t AliESDtrack::GetTRDpid(Int_t iSpecies) const
79e94bf8 1905{
4427806c 1906 // Returns the probability of particle type iSpecies (in TRD)
79e94bf8 1907 return fTRDr[iSpecies];
1908}
1909
fae4c212 1910//____________________________________________________
1911Int_t AliESDtrack::GetNumberOfTRDslices() const
1912{
1913 // built in backward compatibility
1914 Int_t idx = fTRDnSlices - (kTRDnPlanes<<1);
1915 return idx<18 ? fTRDnSlices/kTRDnPlanes : idx/kTRDnPlanes;
1916}
1917
1918//____________________________________________________
1919Double_t AliESDtrack::GetTRDmomentum(Int_t plane, Double_t *sp) const
1920{
1921//Returns momentum estimation and optional its error (sp)
1922// in TRD layer "plane".
1923
1924 if (!fTRDnSlices) {
ba8cee18 1925 AliDebug(2, "No TRD info allocated for this track.");
fae4c212 1926 return -1.;
1927 }
1928 if ((plane<0) || (plane>=kTRDnPlanes)) {
ba8cee18 1929 AliWarning(Form("Request for TRD plane[%d] outside range.", plane));
fae4c212 1930 return -1.;
1931 }
1932
1933 Int_t idx = fTRDnSlices-(kTRDnPlanes<<1)+plane;
1934 // Protection for backward compatibility
1935 if(idx<(GetNumberOfTRDslices()*kTRDnPlanes)) return -1.;
1936
1937 if(sp) (*sp) = fTRDslices[idx+kTRDnPlanes];
1938 return fTRDslices[idx];
1939}
1940
1941//____________________________________________________
1942Double_t AliESDtrack::GetTRDslice(Int_t plane, Int_t slice) const {
1943 //Gets the charge from the slice of the plane
1944
1945 if(!fTRDslices) {
1946 //AliError("No TRD slices allocated for this track !");
1947 return -1.;
1948 }
1949 if ((plane<0) || (plane>=kTRDnPlanes)) {
1950 AliError("Info for TRD plane not available !");
1951 return -1.;
1952 }
1953 Int_t ns=GetNumberOfTRDslices();
1954 if ((slice<-1) || (slice>=ns)) {
1955 //AliError("Wrong TRD slice !");
1956 return -1.;
1957 }
1958
1959 if(slice>=0) return fTRDslices[plane*ns + slice];
1960
1961 // return average of the dEdx measurements
1962 Double_t q=0.; Double32_t *s = &fTRDslices[plane*ns];
1963 for (Int_t i=0; i<ns; i++, s++) if((*s)>0.) q+=(*s);
1964 return q/ns;
1965}
1966
1967//____________________________________________________
6984f7c1 1968void AliESDtrack::SetNumberOfTRDslices(Int_t n) {
1969 //Sets the number of slices used for PID
fae4c212 1970 if (fTRDnSlices) return;
1971
1972 fTRDnSlices=n;
6984f7c1 1973 fTRDslices=new Double32_t[fTRDnSlices];
fae4c212 1974
1975 // set-up correctly the allocated memory
1976 memset(fTRDslices, 0, n*sizeof(Double32_t));
1977 for (Int_t i=GetNumberOfTRDslices(); i--;) fTRDslices[i]=-1.;
6984f7c1 1978}
1979
fae4c212 1980//____________________________________________________
6984f7c1 1981void AliESDtrack::SetTRDslice(Double_t q, Int_t plane, Int_t slice) {
1982 //Sets the charge q in the slice of the plane
fae4c212 1983 if(!fTRDslices) {
6984f7c1 1984 AliError("No TRD slices allocated for this track !");
1985 return;
1986 }
6984f7c1 1987 if ((plane<0) || (plane>=kTRDnPlanes)) {
fae4c212 1988 AliError("Info for TRD plane not allocated !");
6984f7c1 1989 return;
1990 }
fae4c212 1991 Int_t ns=GetNumberOfTRDslices();
6984f7c1 1992 if ((slice<0) || (slice>=ns)) {
1993 AliError("Wrong TRD slice !");
1994 return;
1995 }
1996 Int_t n=plane*ns + slice;
1997 fTRDslices[n]=q;
1998}
1999
6984f7c1 2000
fae4c212 2001//____________________________________________________
2002void AliESDtrack::SetTRDmomentum(Double_t p, Int_t plane, Double_t *sp)
2003{
2004 if(!fTRDslices) {
2005 AliError("No TRD slices allocated for this track !");
2006 return;
6984f7c1 2007 }
fae4c212 2008 if ((plane<0) || (plane>=kTRDnPlanes)) {
2009 AliError("Info for TRD plane not allocated !");
2010 return;
6984f7c1 2011 }
2012
fae4c212 2013 Int_t idx = fTRDnSlices-(kTRDnPlanes<<1)+plane;
2014 // Protection for backward compatibility
2015 if(idx<GetNumberOfTRDslices()*kTRDnPlanes) return;
6984f7c1 2016
fae4c212 2017 if(sp) fTRDslices[idx+kTRDnPlanes] = (*sp);
2018 fTRDslices[idx] = p;
6984f7c1 2019}
2020
2021
c630aafd 2022//_______________________________________________________________________
2023void AliESDtrack::SetTOFpid(const Double_t *p) {
4427806c 2024 // Sets the probability of each particle type (in TOF)
d27bbc79 2025 SetPIDValues(fTOFr,p,AliPID::kSPECIES);
c630aafd 2026 SetStatus(AliESDtrack::kTOFpid);
2027}
2028
51ad6848 2029//_______________________________________________________________________
2030void AliESDtrack::SetTOFLabel(const Int_t *p) {
2031 // Sets (in TOF)
2032 for (Int_t i=0; i<3; i++) fTOFLabel[i]=p[i];
2033}
2034
c630aafd 2035//_______________________________________________________________________
2036void AliESDtrack::GetTOFpid(Double_t *p) const {
4427806c 2037 // Gets probabilities of each particle type (in TOF)
304864ab 2038 for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTOFr[i];
c630aafd 2039}
2040
51ad6848 2041//_______________________________________________________________________
2042void AliESDtrack::GetTOFLabel(Int_t *p) const {
2043 // Gets (in TOF)
2044 for (Int_t i=0; i<3; i++) p[i]=fTOFLabel[i];
2045}
2046
2047//_______________________________________________________________________
2048void AliESDtrack::GetTOFInfo(Float_t *info) const {
2049 // Gets (in TOF)
2050 for (Int_t i=0; i<10; i++) info[i]=fTOFInfo[i];
2051}
2052
2053//_______________________________________________________________________
2054void AliESDtrack::SetTOFInfo(Float_t*info) {
2055 // Gets (in TOF)
2056 for (Int_t i=0; i<10; i++) fTOFInfo[i]=info[i];
2057}
2058
4a78b8c5 2059
2060
4a78b8c5 2061//_______________________________________________________________________
f4b3bbb7 2062void AliESDtrack::SetHMPIDpid(const Double_t *p) {
2063 // Sets the probability of each particle type (in HMPID)
2064 SetPIDValues(fHMPIDr,p,AliPID::kSPECIES);
2065 SetStatus(AliESDtrack::kHMPIDpid);
4a78b8c5 2066}
2067
2068//_______________________________________________________________________
f4b3bbb7 2069void AliESDtrack::GetHMPIDpid(Double_t *p) const {
2070 // Gets probabilities of each particle type (in HMPID)
2071 for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fHMPIDr[i];
4a78b8c5 2072}
2073
2074
2075
8c6a71ab 2076//_______________________________________________________________________
2077void AliESDtrack::SetESDpid(const Double_t *p) {
4427806c 2078 // Sets the probability of each particle type for the ESD track
d27bbc79 2079 SetPIDValues(fR,p,AliPID::kSPECIES);
8c6a71ab 2080 SetStatus(AliESDtrack::kESDpid);
2081}
2082
2083//_______________________________________________________________________
2084void AliESDtrack::GetESDpid(Double_t *p) const {
4427806c 2085 // Gets probability of each particle type for the ESD track
304864ab 2086 for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fR[i];
8c6a71ab 2087}
2088
d7ddf1e9 2089//_______________________________________________________________________
436dfe39 2090Bool_t AliESDtrack::RelateToVertexTPC(const AliESDVertex *vtx,
2091Double_t b, Double_t maxd, AliExternalTrackParam *cParam) {
d7ddf1e9 2092 //
436dfe39 2093 // Try to relate the TPC-only track parameters to the vertex "vtx",
d7ddf1e9 2094 // if the (rough) transverse impact parameter is not bigger then "maxd".
2095 // Magnetic field is "b" (kG).
2096 //
2097 // a) The TPC-only paramters are extapolated to the DCA to the vertex.
2098 // b) The impact parameters and their covariance matrix are calculated.
436dfe39 2099 // c) An attempt to constrain the TPC-only params to the vertex is done.
2100 // The constrained params are returned via "cParam".
d7ddf1e9 2101 //
436dfe39 2102 // In the case of success, the returned value is kTRUE
2103 // otherwise, it's kFALSE)
2104 //
d7ddf1e9 2105
2106 if (!fTPCInner) return kFALSE;
2107 if (!vtx) return kFALSE;
2108
2109 Double_t dz[2],cov[3];
2110 if (!fTPCInner->PropagateToDCA(vtx, b, maxd, dz, cov)) return kFALSE;
2111
2112 fdTPC = dz[0];
2113 fzTPC = dz[1];
2114 fCddTPC = cov[0];
2115 fCdzTPC = cov[1];
2116 fCzzTPC = cov[2];
2117
436dfe39 2118 Double_t covar[6]; vtx->GetCovMatrix(covar);
2119 Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
2120 Double_t c[3]={covar[2],0.,covar[5]};
2121
2122 Double_t chi2=GetPredictedChi2(p,c);
2123 if (chi2>kVeryBig) return kFALSE;
2124
2125 fCchi2TPC=chi2;
2126
2127 if (!cParam) return kTRUE;
2128
2129 *cParam = *fTPCInner;
2130 if (!cParam->Update(p,c)) return kFALSE;
2131
d7ddf1e9 2132 return kTRUE;
2133}
2134
266a0f9b 2135//_______________________________________________________________________
2136Bool_t AliESDtrack::RelateToVertexTPCBxByBz(const AliESDVertex *vtx,
2137Double_t b[3], Double_t maxd, AliExternalTrackParam *cParam) {
2138 //
2139 // Try to relate the TPC-only track parameters to the vertex "vtx",
2140 // if the (rough) transverse impact parameter is not bigger then "maxd".
2141 //
2142 // All three components of the magnetic field ,"b[3]" (kG),
2143 // are taken into account.
2144 //
2145 // a) The TPC-only paramters are extapolated to the DCA to the vertex.
2146 // b) The impact parameters and their covariance matrix are calculated.
2147 // c) An attempt to constrain the TPC-only params to the vertex is done.
2148 // The constrained params are returned via "cParam".
2149 //
2150 // In the case of success, the returned value is kTRUE
2151 // otherwise, it's kFALSE)
2152 //
2153
2154 if (!fTPCInner) return kFALSE;
2155 if (!vtx) return kFALSE;
2156
2157 Double_t dz[2],cov[3];
2158 if (!fTPCInner->PropagateToDCABxByBz(vtx, b, maxd, dz, cov)) return kFALSE;
2159
2160 fdTPC = dz[0];
2161 fzTPC = dz[1];
2162 fCddTPC = cov[0];
2163 fCdzTPC = cov[1];
2164 fCzzTPC = cov[2];
2165
2166 Double_t covar[6]; vtx->GetCovMatrix(covar);
2167 Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
2168 Double_t c[3]={covar[2],0.,covar[5]};
2169
2170 Double_t chi2=GetPredictedChi2(p,c);
2171 if (chi2>kVeryBig) return kFALSE;
2172
2173 fCchi2TPC=chi2;
2174
2175 if (!cParam) return kTRUE;
2176
2177 *cParam = *fTPCInner;
2178 if (!cParam->Update(p,c)) return kFALSE;
2179
2180 return kTRUE;
2181}
2182
49d13e89 2183//_______________________________________________________________________
436dfe39 2184Bool_t AliESDtrack::RelateToVertex(const AliESDVertex *vtx,
2185Double_t b, Double_t maxd, AliExternalTrackParam *cParam) {
49d13e89 2186 //
2187 // Try to relate this track to the vertex "vtx",
2188 // if the (rough) transverse impact parameter is not bigger then "maxd".
2189 // Magnetic field is "b" (kG).
2190 //
2191 // a) The track gets extapolated to the DCA to the vertex.
2192 // b) The impact parameters and their covariance matrix are calculated.
2193 // c) An attempt to constrain this track to the vertex is done.
436dfe39 2194 // The constrained params are returned via "cParam".
49d13e89 2195 //
436dfe39 2196 // In the case of success, the returned value is kTRUE
2197 // (otherwise, it's kFALSE)
49d13e89 2198 //
b5d34a4c 2199
2200 if (!vtx) return kFALSE;
2201
e99a34df 2202 Double_t dz[2],cov[3];
2203 if (!PropagateToDCA(vtx, b, maxd, dz, cov)) return kFALSE;
2204
2205 fD = dz[0];
2206 fZ = dz[1];
2207 fCdd = cov[0];
2208 fCdz = cov[1];
2209 fCzz = cov[2];
49d13e89 2210
e99a34df 2211 Double_t covar[6]; vtx->GetCovMatrix(covar);
2212 Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
2213 Double_t c[3]={covar[2],0.,covar[5]};
3231f9e5 2214
e99a34df 2215 Double_t chi2=GetPredictedChi2(p,c);
436dfe39 2216 if (chi2>kVeryBig) return kFALSE;
2217
2218 fCchi2=chi2;
49d13e89 2219
436dfe39 2220
266a0f9b 2221 //--- Could now these lines be removed ? ---
2222 delete fCp;
2223 fCp=new AliExternalTrackParam(*this);
2224
2225 if (!fCp->Update(p,c)) {delete fCp; fCp=0; return kFALSE;}
2226 //----------------------------------------
2227
2228 fVertexID = vtx->GetID();
2229
2230 if (!cParam) return kTRUE;
2231
2232 *cParam = *this;
2233 if (!cParam->Update(p,c)) return kFALSE;
2234
2235 return kTRUE;
2236}
2237
2238//_______________________________________________________________________
2239Bool_t AliESDtrack::RelateToVertexBxByBz(const AliESDVertex *vtx,
2240Double_t b[3], Double_t maxd, AliExternalTrackParam *cParam) {
2241 //
2242 // Try to relate this track to the vertex "vtx",
2243 // if the (rough) transverse impact parameter is not bigger then "maxd".
2244 // Magnetic field is "b" (kG).
2245 //
2246 // a) The track gets extapolated to the DCA to the vertex.
2247 // b) The impact parameters and their covariance matrix are calculated.
2248 // c) An attempt to constrain this track to the vertex is done.
2249 // The constrained params are returned via "cParam".
2250 //
2251 // In the case of success, the returned value is kTRUE
2252 // (otherwise, it's kFALSE)
2253 //
2254
2255 if (!vtx) return kFALSE;
2256
2257 Double_t dz[2],cov[3];
2258 if (!PropagateToDCABxByBz(vtx, b, maxd, dz, cov)) return kFALSE;
2259
2260 fD = dz[0];
2261 fZ = dz[1];
2262 fCdd = cov[0];
2263 fCdz = cov[1];
2264 fCzz = cov[2];
2265
2266 Double_t covar[6]; vtx->GetCovMatrix(covar);
2267 Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
2268 Double_t c[3]={covar[2],0.,covar[5]};
2269
2270 Double_t chi2=GetPredictedChi2(p,c);
2271 if (chi2>kVeryBig) return kFALSE;
2272
2273 fCchi2=chi2;
2274
2275
436dfe39 2276 //--- Could now these lines be removed ? ---
e99a34df 2277 delete fCp;
2278 fCp=new AliExternalTrackParam(*this);
49d13e89 2279
e99a34df 2280 if (!fCp->Update(p,c)) {delete fCp; fCp=0; return kFALSE;}
436dfe39 2281 //----------------------------------------
2282
6dc21f57 2283 fVertexID = vtx->GetID();
436dfe39 2284
2285 if (!cParam) return kTRUE;
2286
2287 *cParam = *this;
2288 if (!cParam->Update(p,c)) return kFALSE;
2289
49d13e89 2290 return kTRUE;
2291}
2292
ac2f7574 2293//_______________________________________________________________________
2294void AliESDtrack::Print(Option_t *) const {
2295 // Prints info on the track
b9ca886f 2296 AliExternalTrackParam::Print();
5f7789fc 2297 printf("ESD track info\n") ;
304864ab 2298 Double_t p[AliPID::kSPECIESN] ;
ac2f7574 2299 Int_t index = 0 ;
2300 if( IsOn(kITSpid) ){
2301 printf("From ITS: ") ;
2302 GetITSpid(p) ;
304864ab 2303 for(index = 0 ; index < AliPID::kSPECIES; index++)
ac2f7574 2304 printf("%f, ", p[index]) ;
2305 printf("\n signal = %f\n", GetITSsignal()) ;
2306 }
2307 if( IsOn(kTPCpid) ){
2308 printf("From TPC: ") ;
2309 GetTPCpid(p) ;
304864ab 2310 for(index = 0 ; index < AliPID::kSPECIES; index++)
ac2f7574 2311 printf("%f, ", p[index]) ;
2312 printf("\n signal = %f\n", GetTPCsignal()) ;
2313 }
2314 if( IsOn(kTRDpid) ){
2315 printf("From TRD: ") ;
2316 GetTRDpid(p) ;
304864ab 2317 for(index = 0 ; index < AliPID::kSPECIES; index++)
ac2f7574 2318 printf("%f, ", p[index]) ;
6984f7c1 2319 printf("\n signal = %f\n", GetTRDsignal()) ;
ac2f7574 2320 }
2321 if( IsOn(kTOFpid) ){
2322 printf("From TOF: ") ;
2323 GetTOFpid(p) ;
304864ab 2324 for(index = 0 ; index < AliPID::kSPECIES; index++)
ac2f7574 2325 printf("%f, ", p[index]) ;
2326 printf("\n signal = %f\n", GetTOFsignal()) ;
2327 }
f4b3bbb7 2328 if( IsOn(kHMPIDpid) ){
2329 printf("From HMPID: ") ;
2330 GetHMPIDpid(p) ;
304864ab 2331 for(index = 0 ; index < AliPID::kSPECIES; index++)
ac2f7574 2332 printf("%f, ", p[index]) ;
f4b3bbb7 2333 printf("\n signal = %f\n", GetHMPIDsignal()) ;
ac2f7574 2334 }
ac2f7574 2335}
6c94f330 2336
0c19adf7 2337
2338//
2339// Draw functionality
2340// Origin: Marian Ivanov, Marian.Ivanov@cern.ch
2341//
2342void AliESDtrack::FillPolymarker(TPolyMarker3D *pol, Float_t magF, Float_t minR, Float_t maxR, Float_t stepR){
2343 //
2344 // Fill points in the polymarker
2345 //
2346 TObjArray arrayRef;
2347 arrayRef.AddLast(new AliExternalTrackParam(*this));
2348 if (fIp) arrayRef.AddLast(new AliExternalTrackParam(*fIp));
2349 if (fOp) arrayRef.AddLast(new AliExternalTrackParam(*fOp));
c38d443f 2350 if (fHMPIDp) arrayRef.AddLast(new AliExternalTrackParam(*fHMPIDp));
0c19adf7 2351 //
2352 Double_t mpos[3]={0,0,0};
2353 Int_t entries=arrayRef.GetEntries();
2354 for (Int_t i=0;i<entries;i++){
2355 Double_t pos[3];
2356 ((AliExternalTrackParam*)arrayRef.At(i))->GetXYZ(pos);
2357 mpos[0]+=pos[0]/entries;
2358 mpos[1]+=pos[1]/entries;
2359 mpos[2]+=pos[2]/entries;
2360 }
2361 // Rotate to the mean position
2362 //
2363 Float_t fi= TMath::ATan2(mpos[1],mpos[0]);
2364 for (Int_t i=0;i<entries;i++){
2365 Bool_t res = ((AliExternalTrackParam*)arrayRef.At(i))->Rotate(fi);
2366 if (!res) delete arrayRef.RemoveAt(i);
2367 }
2368 Int_t counter=0;
2369 for (Double_t r=minR; r<maxR; r+=stepR){
2370 Double_t sweight=0;
2371 Double_t mlpos[3]={0,0,0};
2372 for (Int_t i=0;i<entries;i++){
2373 Double_t point[3]={0,0,0};
2374 AliExternalTrackParam *param = ((AliExternalTrackParam*)arrayRef.At(i));
2375 if (!param) continue;
2376 if (param->GetXYZAt(r,magF,point)){
2377 Double_t weight = 1./(10.+(r-param->GetX())*(r-param->GetX()));
2378 sweight+=weight;
2379 mlpos[0]+=point[0]*weight;
2380 mlpos[1]+=point[1]*weight;
2381 mlpos[2]+=point[2]*weight;
2382 }
2383 }
2384 if (sweight>0){
2385 mlpos[0]/=sweight;
2386 mlpos[1]/=sweight;
2387 mlpos[2]/=sweight;
2388 pol->SetPoint(counter,mlpos[0],mlpos[1], mlpos[2]);
2389 printf("xyz\t%f\t%f\t%f\n",mlpos[0], mlpos[1],mlpos[2]);
2390 counter++;
2391 }
2392 }
2393}
1d4882da 2394
2395//_______________________________________________________________________
2396void AliESDtrack::SetITSdEdxSamples(const Double_t s[4]) {
2397 //
2398 // Store the dE/dx samples measured by the two SSD and two SDD layers.
2399 // These samples are corrected for the track segment length.
2400 //
2401 for (Int_t i=0; i<4; i++) fITSdEdxSamples[i]=s[i];
2402}
2403
2404//_______________________________________________________________________
2405void AliESDtrack::GetITSdEdxSamples(Double_t *s) const {
2406 //
2407 // Get the dE/dx samples measured by the two SSD and two SDD layers.
2408 // These samples are corrected for the track segment length.
2409 //
2410 for (Int_t i=0; i<4; i++) s[i]=fITSdEdxSamples[i];
2411}
949840f6 2412
2413
2414UShort_t AliESDtrack::GetTPCnclsS(Int_t i0,Int_t i1) const{
2415 //
beb01154 2416 // get number of shared TPC clusters
949840f6 2417 //
2418 return fTPCSharedMap.CountBits(i0)-fTPCSharedMap.CountBits(i1);
2419}
beb01154 2420
2421UShort_t AliESDtrack::GetTPCncls(Int_t i0,Int_t i1) const{
2422 //
2423 // get number of TPC clusters
2424 //
2425 return fTPCClusterMap.CountBits(i0)-fTPCClusterMap.CountBits(i1);
2426}