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46d29e70 | 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 | **************************************************************************/ | |
15 | ||
0fa7dfa7 | 16 | /* $Id$ */ |
bbf92647 | 17 | |
029cd327 | 18 | /////////////////////////////////////////////////////////////////////////////// |
19 | // // | |
c6f438c0 | 20 | // The standard TRD tracker // |
21 | // Based on Kalman filltering approach // | |
029cd327 | 22 | // // |
4551ea7c | 23 | // Authors: // |
24 | // M. Ivanov (Marian.Ivanov@cern.ch) // | |
25 | // Y. Belikov (Jouri.Belikov@cern.ch) // | |
26 | // // | |
029cd327 | 27 | /////////////////////////////////////////////////////////////////////////////// |
28 | ||
7e448bcc | 29 | |
a2cb5b3d | 30 | #include <Riostream.h> |
46d29e70 | 31 | #include <TBranch.h> |
a1e17193 | 32 | #include <TFile.h> |
4551ea7c | 33 | #include <TGraph.h> |
7e448bcc | 34 | #include <TH1D.h> |
35 | #include <TH2D.h> | |
a1e17193 | 36 | #include <TLinearFitter.h> |
37 | #include <TObjArray.h> | |
38 | #include <TROOT.h> | |
39 | #include <TTree.h> | |
40 | #include <TTreeStream.h> | |
4551ea7c | 41 | |
42 | #include "AliESD.h" | |
43 | #include "AliAlignObj.h" | |
44 | #include "AliRieman.h" | |
45 | #include "AliTrackPointArray.h" | |
46d29e70 | 46 | |
46d29e70 | 47 | #include "AliTRDgeometry.h" |
a5cadd36 | 48 | #include "AliTRDpadPlane.h" |
0b2318ec | 49 | #include "AliTRDgeometry.h" |
46d29e70 | 50 | #include "AliTRDcluster.h" |
51 | #include "AliTRDtrack.h" | |
75bd7f81 | 52 | #include "AliTRDseed.h" |
3551db50 | 53 | #include "AliTRDcalibDB.h" |
54 | #include "AliTRDCommonParam.h" | |
46d29e70 | 55 | #include "AliTRDtracker.h" |
7b580082 | 56 | #include "AliTRDReconstructor.h" |
77566f2a | 57 | #include "AliTRDCalibra.h" |
7e448bcc | 58 | ClassImp(AliTRDtracker) |
46d29e70 | 59 | |
7e448bcc | 60 | const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; |
61 | const Float_t AliTRDtracker::fgkLabelFraction = 0.8; // ?? | |
62 | const Double_t AliTRDtracker::fgkMaxChi2 = 12.0; | |
63 | const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // Corresponds to tan = 3 | |
64 | const Double_t AliTRDtracker::fgkMaxStep = 2.0; // Maximal step size in propagation | |
7ad19338 | 65 | |
75bd7f81 | 66 | //_____________________________________________________________________________ |
4551ea7c | 67 | AliTRDtracker::AliTRDtracker() |
4e009ce4 | 68 | :AliTracker() |
69 | ,fHBackfit(0x0) | |
70 | ,fHClSearch(0x0) | |
71 | ,fHRefit(0x0) | |
72 | ,fHX(0x0) | |
73 | ,fHNCl(0x0) | |
74 | ,fHNClTrack(0x0) | |
75 | ,fHMinYPos(0x0) | |
76 | ,fHMinYNeg(0x0) | |
77 | ,fHMinZ(0x0) | |
78 | ,fHMinD(0x0) | |
79 | ,fHDeltaX(0x0) | |
80 | ,fHXCl(0x0) | |
81 | ,fGeom(0) | |
82 | ,fNclusters(0) | |
83 | ,fClusters(0) | |
84 | ,fNseeds(0) | |
85 | ,fSeeds(0) | |
86 | ,fNtracks(0) | |
87 | ,fTracks(0) | |
88 | ,fTimeBinsPerPlane(0) | |
89 | ,fAddTRDseeds(kFALSE) | |
90 | ,fNoTilt(kFALSE) | |
91 | ,fDebugStreamer(0) | |
89f05372 | 92 | { |
75bd7f81 | 93 | // |
b7a0917f | 94 | // Default constructor |
75bd7f81 | 95 | // |
b7a0917f | 96 | |
4551ea7c | 97 | for (Int_t i = 0; i < kTrackingSectors; i++) { |
98 | fTrSec[i] = 0; | |
99 | } | |
100 | for (Int_t j = 0; j < 5; j++) { | |
101 | for (Int_t k = 0; k < 18; k++) { | |
102 | fHoles[j][k] = kFALSE; | |
103 | } | |
104 | } | |
75bd7f81 | 105 | |
7e448bcc | 106 | InitLogHists(); |
4e009ce4 | 107 | |
89f05372 | 108 | } |
75bd7f81 | 109 | |
110 | //_____________________________________________________________________________ | |
6c94f330 | 111 | AliTRDtracker::AliTRDtracker(const AliTRDtracker &t) |
112 | :AliTracker(t) | |
4e009ce4 | 113 | ,fHBackfit(0x0) |
114 | ,fHClSearch(0x0) | |
115 | ,fHRefit(0x0) | |
116 | ,fHX(0x0) | |
117 | ,fHNCl(0x0) | |
118 | ,fHNClTrack(0x0) | |
119 | ,fHMinYPos(0x0) | |
120 | ,fHMinYNeg(0x0) | |
121 | ,fHMinZ(0x0) | |
122 | ,fHMinD(0x0) | |
123 | ,fHDeltaX(0x0) | |
124 | ,fHXCl(0x0) | |
ad670fba | 125 | ,fGeom(0) |
126 | ,fNclusters(0) | |
127 | ,fClusters(0) | |
128 | ,fNseeds(0) | |
129 | ,fSeeds(0) | |
130 | ,fNtracks(0) | |
131 | ,fTracks(0) | |
132 | ,fTimeBinsPerPlane(0) | |
133 | ,fAddTRDseeds(kFALSE) | |
134 | ,fNoTilt(kFALSE) | |
135 | ,fDebugStreamer(0) | |
6c94f330 | 136 | { |
ad670fba | 137 | // |
138 | // Copy constructor | |
139 | // | |
4e009ce4 | 140 | |
ad670fba | 141 | } |
142 | ||
143 | //_____________________________________________________________________________ | |
144 | AliTRDtracker::AliTRDtracker(const TFile *geomfile) | |
145 | :AliTracker() | |
4e009ce4 | 146 | ,fHBackfit(0x0) |
147 | ,fHClSearch(0x0) | |
148 | ,fHRefit(0x0) | |
149 | ,fHX(0x0) | |
150 | ,fHNCl(0x0) | |
151 | ,fHNClTrack(0x0) | |
152 | ,fHMinYPos(0x0) | |
153 | ,fHMinYNeg(0x0) | |
154 | ,fHMinZ(0x0) | |
155 | ,fHMinD(0x0) | |
156 | ,fHDeltaX(0x0) | |
157 | ,fHXCl(0x0) | |
ad670fba | 158 | ,fGeom(0) |
159 | ,fNclusters(0) | |
160 | ,fClusters(new TObjArray(2000)) | |
161 | ,fNseeds(0) | |
162 | ,fSeeds(new TObjArray(2000)) | |
163 | ,fNtracks(0) | |
164 | ,fTracks(new TObjArray(1000)) | |
165 | ,fTimeBinsPerPlane(0) | |
166 | ,fAddTRDseeds(kFALSE) | |
167 | ,fNoTilt(kFALSE) | |
168 | ,fDebugStreamer(0) | |
46d29e70 | 169 | { |
5443e65e | 170 | // |
171 | // Main constructor | |
172 | // | |
b8dc2353 | 173 | |
4551ea7c | 174 | TDirectory *savedir = gDirectory; |
175 | TFile *in = (TFile *) geomfile; | |
176 | ||
5443e65e | 177 | if (!in->IsOpen()) { |
4551ea7c | 178 | AliWarning("geometry file is not open!\n"); |
179 | AliWarning("FULL TRD geometry and DEFAULT TRD parameter will be used\n"); | |
5443e65e | 180 | } |
181 | else { | |
182 | in->cd(); | |
4551ea7c | 183 | fGeom = (AliTRDgeometry *) in->Get("TRDgeometry"); |
5443e65e | 184 | } |
46d29e70 | 185 | |
4551ea7c | 186 | if (!fGeom) { |
187 | AliWarning("Cannot find TRD geometry!\n"); | |
0b2318ec | 188 | fGeom = new AliTRDgeometry(); |
c630aafd | 189 | } |
c6f438c0 | 190 | fGeom->ReadGeoMatrices(); |
c630aafd | 191 | |
5443e65e | 192 | savedir->cd(); |
46d29e70 | 193 | |
4551ea7c | 194 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
439c63c8 | 195 | Int_t trS = geomS; |
4551ea7c | 196 | fTrSec[trS] = new AliTRDtrackingSector(fGeom,geomS); |
197 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
198 | fHoles[icham][trS] = fGeom->IsHole(0,icham,geomS); | |
3c625a9b | 199 | } |
5443e65e | 200 | } |
4551ea7c | 201 | |
3551db50 | 202 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); |
7ad19338 | 203 | Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle()); |
4551ea7c | 204 | if (tiltAngle < 0.1) { |
b8dc2353 | 205 | fNoTilt = kTRUE; |
206 | } | |
207 | ||
fc88348b | 208 | if (!AliTRDcalibDB::Instance()) { |
209 | AliFatal("Could not get calibration object"); | |
210 | } | |
211 | fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); | |
46d29e70 | 212 | |
4551ea7c | 213 | fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); |
0a29d0f1 | 214 | |
9c9d2487 | 215 | savedir->cd(); |
7e448bcc | 216 | |
217 | InitLogHists(); | |
75bd7f81 | 218 | |
5443e65e | 219 | } |
46d29e70 | 220 | |
75bd7f81 | 221 | //_____________________________________________________________________________ |
5443e65e | 222 | AliTRDtracker::~AliTRDtracker() |
46d29e70 | 223 | { |
029cd327 | 224 | // |
225 | // Destructor of AliTRDtracker | |
226 | // | |
227 | ||
89f05372 | 228 | if (fClusters) { |
229 | fClusters->Delete(); | |
230 | delete fClusters; | |
231 | } | |
4551ea7c | 232 | |
89f05372 | 233 | if (fTracks) { |
234 | fTracks->Delete(); | |
235 | delete fTracks; | |
236 | } | |
4551ea7c | 237 | |
89f05372 | 238 | if (fSeeds) { |
239 | fSeeds->Delete(); | |
240 | delete fSeeds; | |
241 | } | |
4551ea7c | 242 | |
5443e65e | 243 | delete fGeom; |
0a29d0f1 | 244 | |
4551ea7c | 245 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
029cd327 | 246 | delete fTrSec[geomS]; |
5443e65e | 247 | } |
4551ea7c | 248 | |
7ad19338 | 249 | if (fDebugStreamer) { |
7ad19338 | 250 | delete fDebugStreamer; |
251 | } | |
9c9d2487 | 252 | |
75bd7f81 | 253 | } |
59393e34 | 254 | |
75bd7f81 | 255 | //_____________________________________________________________________________ |
256 | Int_t AliTRDtracker::LocalToGlobalID(Int_t lid) | |
257 | { | |
59393e34 | 258 | // |
75bd7f81 | 259 | // Transform internal TRD ID to global detector ID |
59393e34 | 260 | // |
75bd7f81 | 261 | |
4551ea7c | 262 | Int_t isector = fGeom->GetSector(lid); |
263 | Int_t ichamber = fGeom->GetChamber(lid); | |
264 | Int_t iplan = fGeom->GetPlane(lid); | |
265 | ||
59393e34 | 266 | AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; |
267 | switch (iplan) { | |
268 | case 0: | |
269 | iLayer = AliAlignObj::kTRD1; | |
270 | break; | |
271 | case 1: | |
272 | iLayer = AliAlignObj::kTRD2; | |
273 | break; | |
274 | case 2: | |
275 | iLayer = AliAlignObj::kTRD3; | |
276 | break; | |
277 | case 3: | |
278 | iLayer = AliAlignObj::kTRD4; | |
279 | break; | |
280 | case 4: | |
281 | iLayer = AliAlignObj::kTRD5; | |
282 | break; | |
283 | case 5: | |
284 | iLayer = AliAlignObj::kTRD6; | |
285 | break; | |
286 | }; | |
4551ea7c | 287 | |
288 | Int_t modId = isector * fGeom->Ncham() + ichamber; | |
59393e34 | 289 | UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); |
75bd7f81 | 290 | |
59393e34 | 291 | return volid; |
75bd7f81 | 292 | |
59393e34 | 293 | } |
294 | ||
75bd7f81 | 295 | //_____________________________________________________________________________ |
296 | Int_t AliTRDtracker::GlobalToLocalID(Int_t gid) | |
297 | { | |
59393e34 | 298 | // |
75bd7f81 | 299 | // Transform global detector ID to local detector ID |
59393e34 | 300 | // |
75bd7f81 | 301 | |
4551ea7c | 302 | Int_t modId = 0; |
303 | AliAlignObj::ELayerID layerId = AliAlignObj::VolUIDToLayer(gid,modId); | |
304 | ||
305 | Int_t isector = modId / fGeom->Ncham(); | |
306 | Int_t ichamber = modId % fGeom->Ncham(); | |
307 | Int_t iLayer = -1; | |
308 | ||
59393e34 | 309 | switch (layerId) { |
310 | case AliAlignObj::kTRD1: | |
6c94f330 | 311 | iLayer = 0; |
59393e34 | 312 | break; |
313 | case AliAlignObj::kTRD2: | |
6c94f330 | 314 | iLayer = 1; |
59393e34 | 315 | break; |
316 | case AliAlignObj::kTRD3: | |
6c94f330 | 317 | iLayer = 2; |
59393e34 | 318 | break; |
319 | case AliAlignObj::kTRD4: | |
6c94f330 | 320 | iLayer = 3; |
59393e34 | 321 | break; |
322 | case AliAlignObj::kTRD5: | |
6c94f330 | 323 | iLayer = 4; |
59393e34 | 324 | break; |
325 | case AliAlignObj::kTRD6: | |
6c94f330 | 326 | iLayer = 5; |
59393e34 | 327 | break; |
328 | default: | |
6c94f330 | 329 | iLayer =-1; |
59393e34 | 330 | } |
4551ea7c | 331 | |
332 | if (iLayer < 0) { | |
333 | return -1; | |
334 | } | |
335 | ||
59393e34 | 336 | Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector); |
75bd7f81 | 337 | |
59393e34 | 338 | return lid; |
59393e34 | 339 | |
75bd7f81 | 340 | } |
59393e34 | 341 | |
75bd7f81 | 342 | //_____________________________________________________________________________ |
4551ea7c | 343 | Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 344 | { |
59393e34 | 345 | // |
75bd7f81 | 346 | // Transform something ... whatever ... |
c6f438c0 | 347 | // |
75bd7f81 | 348 | |
33744e5d | 349 | // Magic constants for geo manager transformation |
4551ea7c | 350 | const Double_t kX0shift = 2.52; |
351 | const Double_t kX0shift5 = 3.05; | |
33744e5d | 352 | |
6c94f330 | 353 | // |
33744e5d | 354 | // Apply alignment and calibration to transform cluster |
6c94f330 | 355 | // |
356 | Int_t detector = cluster->GetDetector(); | |
4551ea7c | 357 | Int_t plane = fGeom->GetPlane(cluster->GetDetector()); |
358 | Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
359 | Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
360 | ||
361 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
362 | Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.0); // Drift distance | |
c6f438c0 | 363 | |
59393e34 | 364 | // |
59393e34 | 365 | // ExB correction |
366 | // | |
367 | Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
4e009ce4 | 368 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); |
4551ea7c | 369 | |
370 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); | |
371 | AliTRDpadPlane *padPlane = commonParam->GetPadPlane(plane,chamber); | |
372 | Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); | |
373 | Double_t localPos[3]; | |
374 | Double_t localPosTracker[3]; | |
c6f438c0 | 375 | localPos[0] = -cluster->GetX(); |
4551ea7c | 376 | localPos[1] = cluster->GetY() - driftX * exB; |
377 | localPos[2] = cluster->GetZ() - zshiftIdeal; | |
378 | ||
c6f438c0 | 379 | cluster->SetY(cluster->GetY() - driftX*exB); |
380 | Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
381 | cluster->SetX(xplane- cluster->GetX()); | |
4551ea7c | 382 | |
383 | TGeoHMatrix *matrix = fGeom->GetCorrectionMatrix(cluster->GetDetector()); | |
384 | if (!matrix) { | |
385 | // No matrix found - if somebody used geometry with holes | |
c6f438c0 | 386 | AliError("Invalid Geometry - Default Geometry used\n"); |
387 | return kTRUE; | |
388 | } | |
4551ea7c | 389 | matrix->LocalToMaster(localPos,localPosTracker); |
390 | ||
391 | if (AliTRDReconstructor::StreamLevel() > 1) { | |
392 | (* fDebugStreamer) << "Transform" | |
393 | << "Cl.=" << cluster | |
394 | << "matrix.=" << matrix | |
395 | << "Detector=" << detector | |
396 | << "Sector=" << sector | |
397 | << "Plane=" << plane | |
398 | << "Chamber=" << chamber | |
399 | << "lx0=" << localPosTracker[0] | |
400 | << "ly0=" << localPosTracker[1] | |
401 | << "lz0=" << localPosTracker[2] | |
402 | << "\n"; | |
c6f438c0 | 403 | } |
4551ea7c | 404 | |
405 | if (plane == 5) { | |
c6f438c0 | 406 | cluster->SetX(localPosTracker[0]+kX0shift5); |
4551ea7c | 407 | } |
408 | else { | |
c6f438c0 | 409 | cluster->SetX(localPosTracker[0]+kX0shift); |
4551ea7c | 410 | } |
411 | ||
c6f438c0 | 412 | cluster->SetY(localPosTracker[1]); |
413 | cluster->SetZ(localPosTracker[2]); | |
75bd7f81 | 414 | |
59393e34 | 415 | return kTRUE; |
75bd7f81 | 416 | |
59393e34 | 417 | } |
418 | ||
75bd7f81 | 419 | //_____________________________________________________________________________ |
4551ea7c | 420 | // Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 421 | //{ |
c6f438c0 | 422 | // // |
4551ea7c | 423 | // // Is this still needed ???? |
c6f438c0 | 424 | // // |
425 | // const Double_t kDriftCorrection = 1.01; // drift coeficient correction | |
426 | // const Double_t kTime0Cor = 0.32; // time0 correction | |
427 | // // | |
428 | // const Double_t kX0shift = 2.52; | |
429 | // const Double_t kX0shift5 = 3.05; | |
430 | ||
431 | // // | |
432 | // // apply alignment and calibration to transform cluster | |
433 | // // | |
434 | // // | |
435 | // Int_t detector = cluster->GetDetector(); | |
436 | // Int_t plane = fGeom->GetPlane(cluster->GetDetector()); | |
437 | // Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
438 | // Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
439 | ||
440 | // Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
441 | // Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance | |
442 | // // | |
443 | // // ExB correction | |
444 | // // | |
445 | // Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
4e009ce4 | 446 | // Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); |
c6f438c0 | 447 | // // |
448 | ||
449 | // AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance(); | |
450 | // AliTRDpadPlane * padPlane = commonParam->GetPadPlane(plane,chamber); | |
451 | // Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); | |
452 | // Double_t localPos[3], globalPos[3], localPosTracker[3], localPosTracker2[3]; | |
453 | // localPos[2] = -cluster->GetX(); | |
454 | // localPos[0] = cluster->GetY() - driftX*exB; | |
455 | // localPos[1] = cluster->GetZ() -zshiftIdeal; | |
456 | // TGeoHMatrix * matrix = fGeom->GetGeoMatrix(cluster->GetDetector()); | |
457 | // matrix->LocalToMaster(localPos, globalPos); | |
458 | ||
459 | // Double_t sectorAngle = 20.*(sector%18)+10; | |
460 | // TGeoHMatrix rotSector; | |
461 | // rotSector.RotateZ(sectorAngle); | |
462 | // rotSector.LocalToMaster(globalPos, localPosTracker); | |
463 | // // | |
464 | // // | |
465 | // TGeoHMatrix matrix2(*matrix); | |
466 | // matrix2.MultiplyLeft(&rotSector); | |
467 | // matrix2.LocalToMaster(localPos,localPosTracker2); | |
468 | // // | |
469 | // // | |
470 | // // | |
471 | // cluster->SetY(cluster->GetY() - driftX*exB); | |
472 | // Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
473 | // cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor)); | |
474 | // (*fDebugStreamer)<<"Transform"<< | |
475 | // "Cl.="<<cluster<< | |
476 | // "matrix.="<<matrix<< | |
477 | // "matrix2.="<<&matrix2<< | |
478 | // "Detector="<<detector<< | |
479 | // "Sector="<<sector<< | |
480 | // "Plane="<<plane<< | |
481 | // "Chamber="<<chamber<< | |
482 | // "lx0="<<localPosTracker[0]<< | |
483 | // "ly0="<<localPosTracker[1]<< | |
484 | // "lz0="<<localPosTracker[2]<< | |
485 | // "lx2="<<localPosTracker2[0]<< | |
486 | // "ly2="<<localPosTracker2[1]<< | |
487 | // "lz2="<<localPosTracker2[2]<< | |
488 | // "\n"; | |
489 | // // | |
490 | // if (plane==5) | |
491 | // cluster->SetX(localPosTracker[0]+kX0shift5); | |
492 | // else | |
493 | // cluster->SetX(localPosTracker[0]+kX0shift); | |
494 | ||
495 | // cluster->SetY(localPosTracker[1]); | |
496 | // cluster->SetZ(localPosTracker[2]); | |
497 | // return kTRUE; | |
498 | // } | |
499 | ||
75bd7f81 | 500 | //_____________________________________________________________________________ |
501 | Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) | |
502 | { | |
9c9d2487 | 503 | // |
504 | // Rotates the track when necessary | |
505 | // | |
506 | ||
507 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4551ea7c | 508 | Double_t y = track->GetY(); |
509 | Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); | |
9c9d2487 | 510 | |
4551ea7c | 511 | // Is this still needed ???? |
c630aafd | 512 | //Int_t ns = AliTRDgeometry::kNsect; |
9c9d2487 | 513 | //Int_t s=Int_t(track->GetAlpha()/alpha)%ns; |
514 | ||
4551ea7c | 515 | if (y > ymax) { |
9c9d2487 | 516 | //s = (s+1) % ns; |
4551ea7c | 517 | if (!track->Rotate( alpha)) { |
518 | return kFALSE; | |
519 | } | |
520 | } | |
521 | else if (y < -ymax) { | |
9c9d2487 | 522 | //s = (s-1+ns) % ns; |
4551ea7c | 523 | if (!track->Rotate(-alpha)) { |
524 | return kFALSE; | |
525 | } | |
9c9d2487 | 526 | } |
527 | ||
528 | return kTRUE; | |
9c9d2487 | 529 | |
75bd7f81 | 530 | } |
46e2d86c | 531 | |
75bd7f81 | 532 | //_____________________________________________________________________________ |
533 | AliTRDcluster *AliTRDtracker::GetCluster(AliTRDtrack *track, Int_t plane | |
534 | , Int_t timebin, UInt_t &index) | |
535 | { | |
46e2d86c | 536 | // |
75bd7f81 | 537 | // Try to find cluster in the backup list |
46e2d86c | 538 | // |
75bd7f81 | 539 | |
4551ea7c | 540 | AliTRDcluster *cl =0; |
6c94f330 | 541 | Int_t *indexes = track->GetBackupIndexes(); |
4551ea7c | 542 | |
543 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
544 | if (indexes[i] == 0) { | |
545 | break; | |
546 | } | |
547 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
548 | if (!cli) { | |
549 | break; | |
550 | } | |
551 | if (cli->GetLocalTimeBin() != timebin) { | |
552 | continue; | |
553 | } | |
46e2d86c | 554 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 555 | if (iplane == plane) { |
556 | cl = cli; | |
7ad19338 | 557 | index = indexes[i]; |
46e2d86c | 558 | break; |
559 | } | |
560 | } | |
75bd7f81 | 561 | |
46e2d86c | 562 | return cl; |
46e2d86c | 563 | |
75bd7f81 | 564 | } |
3c625a9b | 565 | |
75bd7f81 | 566 | //_____________________________________________________________________________ |
4551ea7c | 567 | Int_t AliTRDtracker::GetLastPlane(AliTRDtrack *track) |
75bd7f81 | 568 | { |
3c625a9b | 569 | // |
75bd7f81 | 570 | // Return last updated plane |
571 | // | |
572 | ||
4551ea7c | 573 | Int_t lastplane = 0; |
574 | Int_t *indexes = track->GetBackupIndexes(); | |
575 | ||
576 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
577 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
578 | if (!cli) { | |
579 | break; | |
580 | } | |
3c625a9b | 581 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 582 | if (iplane > lastplane) { |
3c625a9b | 583 | lastplane = iplane; |
584 | } | |
585 | } | |
75bd7f81 | 586 | |
3c625a9b | 587 | return lastplane; |
75bd7f81 | 588 | |
3c625a9b | 589 | } |
75bd7f81 | 590 | |
591 | //_____________________________________________________________________________ | |
4551ea7c | 592 | Int_t AliTRDtracker::Clusters2Tracks(AliESD *event) |
c630aafd | 593 | { |
594 | // | |
595 | // Finds tracks within the TRD. The ESD event is expected to contain seeds | |
596 | // at the outer part of the TRD. The seeds | |
597 | // are found within the TRD if fAddTRDseeds is TRUE. | |
598 | // The tracks are propagated to the innermost time bin | |
599 | // of the TRD and the ESD event is updated | |
600 | // | |
601 | ||
4551ea7c | 602 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
029cd327 | 603 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 604 | Int_t nseed = 0; |
605 | Int_t found = 0; | |
606 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
c630aafd | 607 | |
608 | Int_t n = event->GetNumberOfTracks(); | |
4551ea7c | 609 | for (Int_t i = 0; i < n; i++) { |
610 | ||
611 | AliESDtrack *seed = event->GetTrack(i); | |
612 | ULong_t status = seed->GetStatus(); | |
613 | if ((status & AliESDtrack::kTRDout) == 0) { | |
614 | continue; | |
615 | } | |
616 | if ((status & AliESDtrack::kTRDin) != 0) { | |
617 | continue; | |
618 | } | |
c630aafd | 619 | nseed++; |
7ad19338 | 620 | |
4551ea7c | 621 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); |
46e2d86c | 622 | //seed2->ResetCovariance(); |
4551ea7c | 623 | AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); |
624 | AliTRDtrack &t = *pt; | |
7b580082 | 625 | FollowProlongation(t); |
c630aafd | 626 | if (t.GetNumberOfClusters() >= foundMin) { |
627 | UseClusters(&t); | |
4551ea7c | 628 | CookLabel(pt,1 - fgkLabelFraction); |
629 | //t.CookdEdx(); | |
c630aafd | 630 | } |
631 | found++; | |
c630aafd | 632 | |
4551ea7c | 633 | Double_t xTPC = 250.0; |
59393e34 | 634 | if (PropagateToX(t,xTPC,fgkMaxStep)) { |
c630aafd | 635 | seed->UpdateTrackParams(pt, AliESDtrack::kTRDin); |
636 | } | |
637 | delete seed2; | |
638 | delete pt; | |
4551ea7c | 639 | |
640 | } | |
c630aafd | 641 | |
33744e5d | 642 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
643 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
644 | AliInfo(Form("Total number of found tracks: %d",found)); | |
c630aafd | 645 | |
646 | return 0; | |
75bd7f81 | 647 | |
c630aafd | 648 | } |
5443e65e | 649 | |
c630aafd | 650 | //_____________________________________________________________________________ |
4551ea7c | 651 | Int_t AliTRDtracker::PropagateBack(AliESD *event) |
75bd7f81 | 652 | { |
c630aafd | 653 | // |
654 | // Gets seeds from ESD event. The seeds are AliTPCtrack's found and | |
655 | // backpropagated by the TPC tracker. Each seed is first propagated | |
656 | // to the TRD, and then its prolongation is searched in the TRD. | |
657 | // If sufficiently long continuation of the track is found in the TRD | |
658 | // the track is updated, otherwise it's stored as originaly defined | |
659 | // by the TPC tracker. | |
660 | // | |
661 | ||
7e448bcc | 662 | Int_t found = 0; // number of tracks found |
4551ea7c | 663 | Float_t foundMin = 20.0; |
664 | Int_t n = event->GetNumberOfTracks(); | |
665 | ||
666 | // Sort tracks | |
667 | Float_t *quality = new Float_t[n]; | |
668 | Int_t *index = new Int_t[n]; | |
669 | for (Int_t i = 0; i < n; i++) { | |
670 | AliESDtrack *seed = event->GetTrack(i); | |
4f1c04d3 | 671 | Double_t covariance[15]; |
672 | seed->GetExternalCovariance(covariance); | |
673 | quality[i] = covariance[0]+covariance[2]; | |
7e448bcc | 674 | //quality[i] = covariance[0]; |
4f1c04d3 | 675 | } |
676 | TMath::Sort(n,quality,index,kFALSE); | |
4f1c04d3 | 677 | |
4551ea7c | 678 | for (Int_t i = 0; i < n; i++) { |
679 | ||
680 | //AliESDtrack *seed = event->GetTrack(i); | |
681 | AliESDtrack *seed = event->GetTrack(index[i]); | |
7e448bcc | 682 | fHBackfit->Fill(0); |
c630aafd | 683 | |
4551ea7c | 684 | ULong_t status = seed->GetStatus(); |
685 | if ((status & AliESDtrack::kTPCout) == 0) { | |
7e448bcc | 686 | fHBackfit->Fill(1); |
4551ea7c | 687 | continue; |
688 | } | |
7e448bcc | 689 | |
4551ea7c | 690 | if ((status & AliESDtrack::kTRDout) != 0) { |
7e448bcc | 691 | fHBackfit->Fill(2); |
4551ea7c | 692 | continue; |
693 | } | |
694 | ||
695 | Int_t lbl = seed->GetLabel(); | |
c630aafd | 696 | AliTRDtrack *track = new AliTRDtrack(*seed); |
697 | track->SetSeedLabel(lbl); | |
4551ea7c | 698 | seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup |
c630aafd | 699 | fNseeds++; |
4551ea7c | 700 | Float_t p4 = track->GetC(); |
f6625211 | 701 | Int_t expectedClr = FollowBackProlongation(*track); |
7e448bcc | 702 | |
703 | fHBackfit->Fill(3); | |
704 | fHX->Fill(track->GetX()); | |
705 | ||
706 | ||
707 | // store the last measurement | |
708 | /* | |
709 | fHNClTrack->Fill(track->GetNumberOfClusters()); | |
710 | if (track->GetNumberOfClusters() >= foundMin) { | |
711 | ||
712 | fHBackfit->Fill(4); | |
713 | track->CookdEdx(); | |
714 | CookdEdxTimBin(*track); | |
715 | CookLabel(track,1 - fgkLabelFraction); | |
716 | if (track->GetBackupTrack()) { | |
717 | //fHBackfit->Fill(5); | |
718 | UseClusters(track->GetBackupTrack()); | |
719 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
720 | } | |
721 | } | |
722 | */ | |
723 | ||
724 | /**/ | |
725 | // inter-tracks competition ??? | |
4551ea7c | 726 | if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) || |
727 | (TMath::Abs(track->GetPt()) > 0.8)) { | |
7e448bcc | 728 | |
729 | fHBackfit->Fill(4); | |
730 | ||
4f1c04d3 | 731 | // |
4551ea7c | 732 | // Make backup for back propagation |
4f1c04d3 | 733 | // |
7e448bcc | 734 | |
4f1c04d3 | 735 | Int_t foundClr = track->GetNumberOfClusters(); |
736 | if (foundClr >= foundMin) { | |
737 | track->CookdEdx(); | |
8979685e | 738 | CookdEdxTimBin(*track); |
4551ea7c | 739 | CookLabel(track,1 - fgkLabelFraction); |
740 | if (track->GetBackupTrack()) { | |
741 | UseClusters(track->GetBackupTrack()); | |
742 | } | |
743 | ||
744 | // Sign only gold tracks | |
745 | if (track->GetChi2() / track->GetNumberOfClusters() < 4) { | |
7e448bcc | 746 | if ((seed->GetKinkIndex(0) == 0) && |
4551ea7c | 747 | (TMath::Abs(track->GetPt()) < 1.5)) { |
748 | UseClusters(track); | |
749 | } | |
4f1c04d3 | 750 | } |
751 | Bool_t isGold = kFALSE; | |
752 | ||
4551ea7c | 753 | // Full gold track |
754 | if (track->GetChi2() / track->GetNumberOfClusters() < 5) { | |
755 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
756 | if (track->GetBackupTrack()) { | |
757 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
7e448bcc | 758 | |
4551ea7c | 759 | } |
4f1c04d3 | 760 | isGold = kTRUE; |
7e448bcc | 761 | //fHBackfit->Fill() |
4f1c04d3 | 762 | } |
4551ea7c | 763 | |
764 | // Almost gold track | |
765 | if ((!isGold) && | |
766 | (track->GetNCross() == 0) && | |
767 | (track->GetChi2() / track->GetNumberOfClusters() < 7)) { | |
768 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
769 | if (track->GetBackupTrack()) { | |
770 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
771 | } | |
f4e9508c | 772 | isGold = kTRUE; |
773 | } | |
4551ea7c | 774 | |
775 | if ((!isGold) && | |
776 | (track->GetBackupTrack())) { | |
7e448bcc | 777 | if ((track->GetBackupTrack()->GetNumberOfClusters() > foundMin) && |
778 | ((track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1)) < 7)) { | |
4551ea7c | 779 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); |
4f1c04d3 | 780 | isGold = kTRUE; |
781 | } | |
782 | } | |
4551ea7c | 783 | |
7e448bcc | 784 | if ((track->StatusForTOF() > 0) && |
785 | (track->GetNCross() == 0) && | |
27eaf44b | 786 | (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) { |
6c94f330 | 787 | //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); |
7ad19338 | 788 | } |
4551ea7c | 789 | |
16d9fbba | 790 | } |
c630aafd | 791 | } |
7e448bcc | 792 | /**/ |
4551ea7c | 793 | |
7e448bcc | 794 | /**/ |
8979685e | 795 | // Debug part of tracking |
4551ea7c | 796 | TTreeSRedirector &cstream = *fDebugStreamer; |
31fd97b2 | 797 | Int_t eventNrInFile = event->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number. |
4551ea7c | 798 | if (AliTRDReconstructor::StreamLevel() > 0) { |
799 | if (track->GetBackupTrack()) { | |
800 | cstream << "Tracks" | |
31fd97b2 | 801 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 802 | << "ESD.=" << seed |
803 | << "trd.=" << track | |
804 | << "trdback.=" << track->GetBackupTrack() | |
805 | << "\n"; | |
806 | } | |
807 | else { | |
808 | cstream << "Tracks" | |
31fd97b2 | 809 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 810 | << "ESD.=" << seed |
811 | << "trd.=" << track | |
812 | << "trdback.=" << track | |
813 | << "\n"; | |
d337ef8d | 814 | } |
8979685e | 815 | } |
7e448bcc | 816 | /**/ |
4551ea7c | 817 | |
818 | // Propagation to the TOF (I.Belikov) | |
819 | if (track->GetStop() == kFALSE) { | |
7e448bcc | 820 | fHBackfit->Fill(5); |
821 | ||
4551ea7c | 822 | Double_t xtof = 371.0; |
7e448bcc | 823 | Double_t xTOF0 = 370.0; |
824 | ||
4551ea7c | 825 | Double_t c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); |
826 | if (TMath::Abs(c2) >= 0.99) { | |
7e448bcc | 827 | |
828 | fHBackfit->Fill(6); | |
c5a8e3df | 829 | delete track; |
830 | continue; | |
831 | } | |
7e448bcc | 832 | |
59393e34 | 833 | PropagateToX(*track,xTOF0,fgkMaxStep); |
4551ea7c | 834 | |
835 | // Energy losses taken to the account - check one more time | |
836 | c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); | |
837 | if (TMath::Abs(c2) >= 0.99) { | |
7e448bcc | 838 | |
839 | fHBackfit->Fill(7); | |
4f1c04d3 | 840 | delete track; |
841 | continue; | |
842 | } | |
7e448bcc | 843 | |
844 | //if (!PropagateToX(*track,xTOF0,fgkMaxStep)) { | |
845 | // fHBackfit->Fill(7); | |
846 | //delete track; | |
847 | // continue; | |
848 | //} | |
4f1c04d3 | 849 | |
4551ea7c | 850 | Double_t ymax = xtof * TMath::Tan(0.5 * AliTRDgeometry::GetAlpha()); |
851 | Double_t y; | |
852 | track->GetYAt(xtof,GetBz(),y); | |
7e448bcc | 853 | if (y > ymax) { |
4551ea7c | 854 | if (!track->Rotate( AliTRDgeometry::GetAlpha())) { |
7e448bcc | 855 | fHBackfit->Fill(8); |
7ac6fa52 | 856 | delete track; |
7bed16a7 | 857 | continue; |
7ac6fa52 | 858 | } |
4551ea7c | 859 | } |
860 | else if (y < -ymax) { | |
7ac6fa52 | 861 | if (!track->Rotate(-AliTRDgeometry::GetAlpha())) { |
7e448bcc | 862 | fHBackfit->Fill(9); |
7ac6fa52 | 863 | delete track; |
7bed16a7 | 864 | continue; |
7ac6fa52 | 865 | } |
3c625a9b | 866 | } |
7e448bcc | 867 | |
3c625a9b | 868 | if (track->PropagateTo(xtof)) { |
4551ea7c | 869 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); |
7e448bcc | 870 | fHBackfit->Fill(10); |
871 | ||
4551ea7c | 872 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
873 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 874 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
875 | } | |
876 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 877 | } |
4551ea7c | 878 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
879 | if (track->GetNumberOfClusters() > foundMin) { | |
7e448bcc | 880 | fHBackfit->Fill(11); |
4551ea7c | 881 | found++; |
882 | } | |
3c625a9b | 883 | } |
4551ea7c | 884 | |
885 | } | |
886 | else { | |
7e448bcc | 887 | |
888 | fHBackfit->Fill(12); | |
889 | ||
4551ea7c | 890 | if ((track->GetNumberOfClusters() > 15) && |
891 | (track->GetNumberOfClusters() > 0.5*expectedClr)) { | |
7e448bcc | 892 | |
4551ea7c | 893 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); |
7e448bcc | 894 | fHBackfit->Fill(13); |
895 | ||
16d9fbba | 896 | //seed->SetStatus(AliESDtrack::kTRDStop); |
4551ea7c | 897 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
898 | for (Int_t j = 0; j <AliESDtrack::kNSlice; j++) { | |
6d45eaef | 899 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
900 | } | |
901 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 902 | } |
7ad19338 | 903 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
3c625a9b | 904 | found++; |
905 | } | |
4551ea7c | 906 | |
1e9bb598 | 907 | } |
4551ea7c | 908 | |
7ad19338 | 909 | seed->SetTRDQuality(track->StatusForTOF()); |
27eaf44b | 910 | seed->SetTRDBudget(track->GetBudget(0)); |
8979685e | 911 | |
7e448bcc | 912 | fHBackfit->Fill(14); |
d9b8978b | 913 | delete track; |
c630aafd | 914 | } |
ad670fba | 915 | |
33744e5d | 916 | AliInfo(Form("Number of seeds: %d",fNseeds)); |
917 | AliInfo(Form("Number of back propagated TRD tracks: %d",found)); | |
6c94f330 | 918 | |
33744e5d | 919 | // New seeding |
920 | if (AliTRDReconstructor::SeedingOn()) { | |
4551ea7c | 921 | MakeSeedsMI(3,5,event); |
33744e5d | 922 | } |
923 | ||
924 | fSeeds->Clear(); | |
4551ea7c | 925 | fNseeds = 0; |
7ad19338 | 926 | |
4f1c04d3 | 927 | delete [] index; |
928 | delete [] quality; | |
929 | ||
7e448bcc | 930 | SaveLogHists(); |
931 | ||
1e9bb598 | 932 | return 0; |
1e9bb598 | 933 | } |
934 | ||
935 | //_____________________________________________________________________________ | |
4551ea7c | 936 | Int_t AliTRDtracker::RefitInward(AliESD *event) |
1e9bb598 | 937 | { |
938 | // | |
939 | // Refits tracks within the TRD. The ESD event is expected to contain seeds | |
940 | // at the outer part of the TRD. | |
941 | // The tracks are propagated to the innermost time bin | |
942 | // of the TRD and the ESD event is updated | |
943 | // Origin: Thomas KUHR (Thomas.Kuhr@cern.ch) | |
944 | // | |
945 | ||
4551ea7c | 946 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
1e9bb598 | 947 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 948 | Int_t nseed = 0; |
949 | Int_t found = 0; | |
950 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
4f1c04d3 | 951 | AliTRDtrack seed2; |
6c94f330 | 952 | |
1e9bb598 | 953 | Int_t n = event->GetNumberOfTracks(); |
4551ea7c | 954 | for (Int_t i = 0; i < n; i++) { |
955 | ||
956 | AliESDtrack *seed = event->GetTrack(i); | |
957 | new (&seed2) AliTRDtrack(*seed); | |
7e448bcc | 958 | fHRefit->Fill(0); |
959 | ||
4551ea7c | 960 | if (seed2.GetX() < 270.0) { |
961 | seed->UpdateTrackParams(&seed2,AliESDtrack::kTRDbackup); // Backup TPC track - only update | |
7e448bcc | 962 | fHRefit->Fill(1); |
f4e9508c | 963 | continue; |
964 | } | |
965 | ||
4551ea7c | 966 | ULong_t status = seed->GetStatus(); |
967 | if ((status & AliESDtrack::kTRDout) == 0) { | |
7e448bcc | 968 | fHRefit->Fill(2); |
0dd7d129 | 969 | continue; |
970 | } | |
4551ea7c | 971 | if ((status & AliESDtrack::kTRDin) != 0) { |
7e448bcc | 972 | fHRefit->Fill(3); |
0dd7d129 | 973 | continue; |
974 | } | |
7e448bcc | 975 | |
6c94f330 | 976 | nseed++; |
7e448bcc | 977 | fHRefit->Fill(4); |
6c94f330 | 978 | |
4551ea7c | 979 | seed2.ResetCovariance(50.0); |
6c94f330 | 980 | |
4f1c04d3 | 981 | AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha()); |
4551ea7c | 982 | Int_t *indexes2 = seed2.GetIndexes(); |
983 | for (Int_t i = 0; i < AliESDtrack::kNPlane;i++) { | |
984 | for (Int_t j = 0; j < AliESDtrack::kNSlice;j++) { | |
6d45eaef | 985 | pt->SetPIDsignals(seed2.GetPIDsignals(i,j),i,j); |
986 | } | |
7ad19338 | 987 | pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i); |
988 | } | |
eab5961e | 989 | |
4551ea7c | 990 | Int_t *indexes3 = pt->GetBackupIndexes(); |
991 | for (Int_t i = 0; i < 200;i++) { | |
992 | if (indexes2[i] == 0) { | |
993 | break; | |
994 | } | |
46e2d86c | 995 | indexes3[i] = indexes2[i]; |
4551ea7c | 996 | } |
997 | ||
46e2d86c | 998 | //AliTRDtrack *pt = seed2; |
4551ea7c | 999 | AliTRDtrack &t = *pt; |
7b580082 | 1000 | FollowProlongation(t); |
1e9bb598 | 1001 | if (t.GetNumberOfClusters() >= foundMin) { |
4551ea7c | 1002 | //UseClusters(&t); |
6c94f330 | 1003 | //CookLabel(pt, 1-fgkLabelFraction); |
7ad19338 | 1004 | t.CookdEdx(); |
1005 | CookdEdxTimBin(t); | |
1e9bb598 | 1006 | } |
1007 | found++; | |
33744e5d | 1008 | |
4551ea7c | 1009 | Double_t xTPC = 250.0; |
1010 | if (PropagateToX(t,xTPC,fgkMaxStep)) { | |
7e448bcc | 1011 | |
4551ea7c | 1012 | seed->UpdateTrackParams(pt,AliESDtrack::kTRDrefit); |
7e448bcc | 1013 | fHRefit->Fill(5); |
1014 | ||
4551ea7c | 1015 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
1016 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 1017 | seed->SetTRDsignals(pt->GetPIDsignals(i,j),i,j); |
1018 | } | |
7ad19338 | 1019 | seed->SetTRDTimBin(pt->GetPIDTimBin(i),i); |
1020 | } | |
4551ea7c | 1021 | } |
1022 | else { | |
1023 | // If not prolongation to TPC - propagate without update | |
7e448bcc | 1024 | fHRefit->Fill(5); |
4551ea7c | 1025 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); |
1026 | seed2->ResetCovariance(5.0); | |
1027 | AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); | |
7bed16a7 | 1028 | delete seed2; |
59393e34 | 1029 | if (PropagateToX(*pt2,xTPC,fgkMaxStep)) { |
4551ea7c | 1030 | pt2->CookdEdx( ); |
eab5961e | 1031 | CookdEdxTimBin(*pt2); |
4551ea7c | 1032 | seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit); |
7e448bcc | 1033 | fHRefit->Fill(6); |
1034 | ||
4551ea7c | 1035 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
1036 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 1037 | seed->SetTRDsignals(pt2->GetPIDsignals(i,j),i,j); |
1038 | } | |
7ad19338 | 1039 | seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i); |
1040 | } | |
eab5961e | 1041 | } |
7bed16a7 | 1042 | delete pt2; |
4551ea7c | 1043 | } |
1044 | ||
1e9bb598 | 1045 | delete pt; |
4551ea7c | 1046 | |
eab5961e | 1047 | } |
1e9bb598 | 1048 | |
33744e5d | 1049 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
1050 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
1e9bb598 | 1051 | |
7e448bcc | 1052 | SaveLogHists(); |
c630aafd | 1053 | return 0; |
c630aafd | 1054 | } |
1055 | ||
75bd7f81 | 1056 | //_____________________________________________________________________________ |
4551ea7c | 1057 | Int_t AliTRDtracker::FollowProlongation(AliTRDtrack &t) |
8979685e | 1058 | { |
75bd7f81 | 1059 | // |
8979685e | 1060 | // Starting from current position on track=t this function tries |
1061 | // to extrapolate the track up to timeBin=0 and to confirm prolongation | |
1062 | // if a close cluster is found. Returns the number of clusters | |
1063 | // expected to be found in sensitive layers | |
1064 | // GeoManager used to estimate mean density | |
75bd7f81 | 1065 | // |
1066 | ||
4551ea7c | 1067 | Int_t sector; |
1068 | Int_t lastplane = GetLastPlane(&t); | |
3551db50 | 1069 | Double_t radLength = 0.0; |
4551ea7c | 1070 | Double_t rho = 0.0; |
1071 | Int_t expectedNumberOfClusters = 0; | |
1072 | ||
1073 | for (Int_t iplane = lastplane; iplane >= 0; iplane--) { | |
1074 | ||
1075 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); | |
1076 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
1077 | ||
8979685e | 1078 | // |
4551ea7c | 1079 | // Propagate track close to the plane if neccessary |
7b580082 | 1080 | // |
1081 | Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX(); | |
4551ea7c | 1082 | if (currentx < (-fgkMaxStep + t.GetX())) { |
1083 | // Propagate closer to chamber - safety space fgkMaxStep | |
1084 | if (!PropagateToX(t,currentx+fgkMaxStep,fgkMaxStep)) { | |
1085 | break; | |
1086 | } | |
1087 | } | |
1088 | ||
1089 | if (!AdjustSector(&t)) { | |
1090 | break; | |
8979685e | 1091 | } |
4551ea7c | 1092 | |
59393e34 | 1093 | // |
4551ea7c | 1094 | // Get material budget |
8979685e | 1095 | // |
4551ea7c | 1096 | Double_t xyz0[3]; |
1097 | Double_t xyz1[3]; | |
1098 | Double_t param[7]; | |
1099 | Double_t x; | |
1100 | Double_t y; | |
1101 | Double_t z; | |
1102 | ||
1103 | // Starting global position | |
1104 | t.GetXYZ(xyz0); | |
1105 | // End global position | |
7b580082 | 1106 | x = fTrSec[0]->GetLayer(row0)->GetX(); |
4551ea7c | 1107 | if (!t.GetProlongation(x,y,z)) { |
1108 | break; | |
1109 | } | |
1110 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1111 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1112 | xyz1[2] = z; | |
7b580082 | 1113 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1114 | rho = param[0]; |
1115 | radLength = param[1]; // Get mean propagation parameters | |
1116 | ||
8979685e | 1117 | // |
4551ea7c | 1118 | // Propagate and update |
8979685e | 1119 | // |
8979685e | 1120 | sector = t.GetSector(); |
4551ea7c | 1121 | //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { |
1122 | for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) { | |
1123 | ||
1124 | Int_t ilayer = GetGlobalTimeBin(0,iplane,itime); | |
8979685e | 1125 | expectedNumberOfClusters++; |
27eaf44b | 1126 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1127 | if (t.GetX() > 345.0) { |
27eaf44b | 1128 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1129 | } |
1130 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
7e448bcc | 1131 | AliTRDcluster *cl = 0; |
4551ea7c | 1132 | UInt_t index = 0; |
1133 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1134 | x = timeBin.GetX(); |
4551ea7c | 1135 | |
8979685e | 1136 | if (timeBin) { |
4551ea7c | 1137 | |
1138 | AliTRDcluster *cl0 = timeBin[0]; | |
1139 | if (!cl0) { | |
1140 | // No clusters in given time bin | |
1141 | continue; | |
1142 | } | |
1143 | ||
1144 | Int_t plane = fGeom->GetPlane(cl0->GetDetector()); | |
1145 | if (plane > lastplane) { | |
1146 | continue; | |
1147 | } | |
1148 | ||
8979685e | 1149 | Int_t timebin = cl0->GetLocalTimeBin(); |
4551ea7c | 1150 | AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index); |
1151 | ||
8979685e | 1152 | if (cl2) { |
4551ea7c | 1153 | |
1154 | cl = cl2; | |
33744e5d | 1155 | //Double_t h01 = GetTiltFactor(cl); //I.B's fix |
6c94f330 | 1156 | //maxChi2=t.GetPredictedChi2(cl,h01); |
4551ea7c | 1157 | |
7b580082 | 1158 | } |
8979685e | 1159 | if (cl) { |
4551ea7c | 1160 | |
1161 | //if (cl->GetNPads()<5) | |
59393e34 | 1162 | Double_t dxsample = timeBin.GetdX(); |
1163 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1164 | Double_t h01 = GetTiltFactor(cl); |
1165 | Int_t det = cl->GetDetector(); | |
1166 | Int_t plane = fGeom->GetPlane(det); | |
1167 | if (t.GetX() > 345.0) { | |
27eaf44b | 1168 | t.SetNLast(t.GetNLast() + 1); |
1169 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1170 | } |
4551ea7c | 1171 | |
59393e34 | 1172 | Double_t xcluster = cl->GetX(); |
1173 | t.PropagateTo(xcluster,radLength,rho); | |
6c94f330 | 1174 | |
4551ea7c | 1175 | if (!AdjustSector(&t)) { |
1176 | break; //I.B's fix | |
1177 | } | |
1178 | maxChi2 = t.GetPredictedChi2(cl,h01); | |
6c94f330 | 1179 | |
c2239ca8 | 1180 | if (maxChi2<1e+10) |
1181 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { | |
1182 | // ???? | |
1183 | } | |
4551ea7c | 1184 | |
6c94f330 | 1185 | } |
4551ea7c | 1186 | |
8979685e | 1187 | } |
4551ea7c | 1188 | |
6c94f330 | 1189 | } |
4551ea7c | 1190 | |
8979685e | 1191 | } |
8979685e | 1192 | |
75bd7f81 | 1193 | return expectedNumberOfClusters; |
69b55c55 | 1194 | |
75bd7f81 | 1195 | } |
7b580082 | 1196 | |
75bd7f81 | 1197 | //_____________________________________________________________________________ |
4551ea7c | 1198 | Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack &t) |
8979685e | 1199 | { |
75bd7f81 | 1200 | // |
8979685e | 1201 | // Starting from current radial position of track <t> this function |
1202 | // extrapolates the track up to outer timebin and in the sensitive | |
1203 | // layers confirms prolongation if a close cluster is found. | |
1204 | // Returns the number of clusters expected to be found in sensitive layers | |
1205 | // Use GEO manager for material Description | |
75bd7f81 | 1206 | // |
7e448bcc | 1207 | // return number of assigned clusters ? |
1208 | // | |
1209 | ||
59393e34 | 1210 | |
4551ea7c | 1211 | Int_t sector; |
1212 | Int_t clusters[1000]; | |
6c94f330 | 1213 | Double_t radLength = 0.0; |
4551ea7c | 1214 | Double_t rho = 0.0; |
1215 | Int_t expectedNumberOfClusters = 0; | |
1216 | Float_t ratio0 = 0.0; | |
8979685e | 1217 | AliTRDtracklet tracklet; |
33744e5d | 1218 | |
77566f2a | 1219 | // Calibration fill 2D |
1220 | AliTRDCalibra *calibra = AliTRDCalibra::Instance(); | |
1221 | if (!calibra) { | |
1222 | AliInfo("Could not get Calibra instance\n"); | |
1223 | } | |
8ec526a4 | 1224 | if (calibra->GetMITracking()) { |
1225 | calibra->ResetTrack(); | |
77566f2a | 1226 | } |
1227 | ||
33744e5d | 1228 | for (Int_t i = 0; i < 1000; i++) { |
1229 | clusters[i] = -1; | |
1230 | } | |
1231 | ||
4551ea7c | 1232 | for (Int_t iplane = 0; iplane < AliESDtrack::kNPlane; iplane++) { |
1233 | ||
7e448bcc | 1234 | int hb = iplane * 10; |
1235 | fHClSearch->Fill(hb); | |
1236 | ||
4551ea7c | 1237 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); |
1238 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
1239 | Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX(); | |
1240 | if (currentx < t.GetX()) { | |
7e448bcc | 1241 | fHClSearch->Fill(hb+1); |
4551ea7c | 1242 | continue; |
1243 | } | |
1244 | ||
6c94f330 | 1245 | // |
4551ea7c | 1246 | // Propagate closer to chamber if neccessary |
6c94f330 | 1247 | // |
4551ea7c | 1248 | if (currentx > (fgkMaxStep + t.GetX())) { |
1249 | if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) { | |
7e448bcc | 1250 | fHClSearch->Fill(hb+2); |
4551ea7c | 1251 | break; |
1252 | } | |
1253 | } | |
1254 | if (!AdjustSector(&t)) { | |
7e448bcc | 1255 | fHClSearch->Fill(hb+3); |
4551ea7c | 1256 | break; |
8979685e | 1257 | } |
4551ea7c | 1258 | if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) { |
7e448bcc | 1259 | fHClSearch->Fill(hb+4); |
4551ea7c | 1260 | break; |
1261 | } | |
1262 | ||
8979685e | 1263 | // |
4551ea7c | 1264 | // Get material budget inside of chamber |
59393e34 | 1265 | // |
4551ea7c | 1266 | Double_t xyz0[3]; |
1267 | Double_t xyz1[3]; | |
1268 | Double_t param[7]; | |
1269 | Double_t x; | |
1270 | Double_t y; | |
1271 | Double_t z; | |
1272 | // Starting global position | |
1273 | t.GetXYZ(xyz0); | |
1274 | // End global position | |
7b580082 | 1275 | x = fTrSec[0]->GetLayer(rowlast)->GetX(); |
4551ea7c | 1276 | if (!t.GetProlongation(x,y,z)) { |
7e448bcc | 1277 | fHClSearch->Fill(hb+5); |
4551ea7c | 1278 | break; |
1279 | } | |
1280 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1281 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1282 | xyz1[2] = z; | |
7b580082 | 1283 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1284 | rho = param[0]; |
1285 | radLength = param[1]; // Get mean propagation parameters | |
1286 | ||
8979685e | 1287 | // |
7b580082 | 1288 | // Find clusters |
8979685e | 1289 | // |
6c94f330 | 1290 | sector = t.GetSector(); |
4551ea7c | 1291 | Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); |
7e448bcc | 1292 | fHNCl->Fill(tracklet.GetN()); |
1293 | ||
4551ea7c | 1294 | if (tracklet.GetN() < GetTimeBinsPerPlane()/3) { |
7e448bcc | 1295 | fHClSearch->Fill(hb+6); |
4551ea7c | 1296 | continue; |
1297 | } | |
1298 | ||
8979685e | 1299 | // |
7b580082 | 1300 | // Propagate and update track |
8979685e | 1301 | // |
4551ea7c | 1302 | for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) { |
1303 | ||
1304 | Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); | |
8979685e | 1305 | expectedNumberOfClusters++; |
27eaf44b | 1306 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1307 | if (t.GetX() > 345.0) { |
27eaf44b | 1308 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1309 | } |
1310 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
7e448bcc | 1311 | AliTRDcluster *cl = 0; |
4551ea7c | 1312 | UInt_t index = 0; |
1313 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1314 | x = timeBin.GetX(); |
4551ea7c | 1315 | |
8979685e | 1316 | if (timeBin) { |
4551ea7c | 1317 | |
1318 | if (clusters[ilayer] > 0) { | |
8979685e | 1319 | index = clusters[ilayer]; |
4551ea7c | 1320 | cl = (AliTRDcluster *)GetCluster(index); |
33744e5d | 1321 | //Double_t h01 = GetTiltFactor(cl); // I.B's fix |
1322 | //maxChi2=t.GetPredictedChi2(cl,h01); // | |
8979685e | 1323 | } |
1324 | ||
1325 | if (cl) { | |
4551ea7c | 1326 | |
1327 | //if (cl->GetNPads() < 5) | |
59393e34 | 1328 | Double_t dxsample = timeBin.GetdX(); |
1329 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1330 | Double_t h01 = GetTiltFactor(cl); |
1331 | Int_t det = cl->GetDetector(); | |
1332 | Int_t plane = fGeom->GetPlane(det); | |
1333 | if (t.GetX() > 345.0) { | |
27eaf44b | 1334 | t.SetNLast(t.GetNLast() + 1); |
1335 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1336 | } |
59393e34 | 1337 | Double_t xcluster = cl->GetX(); |
1338 | t.PropagateTo(xcluster,radLength,rho); | |
4551ea7c | 1339 | maxChi2 = t.GetPredictedChi2(cl,h01); |
6c94f330 | 1340 | |
c2239ca8 | 1341 | if (maxChi2<1e+10) |
1342 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { | |
1343 | if (!t.Update(cl,maxChi2,index,h01)) { | |
1344 | // ???? | |
1345 | } | |
1346 | } | |
4551ea7c | 1347 | |
8ec526a4 | 1348 | if (calibra->GetMITracking()) { |
77566f2a | 1349 | calibra->UpdateHistograms(cl,&t); |
1350 | } | |
1351 | ||
4551ea7c | 1352 | // Reset material budget if 2 consecutive gold |
1353 | if (plane > 0) { | |
27eaf44b | 1354 | if ((t.GetTracklets(plane).GetN() + t.GetTracklets(plane-1).GetN()) > 20) { |
1355 | t.SetBudget(2,0.0); | |
4551ea7c | 1356 | } |
1357 | } | |
1358 | ||
1359 | } | |
1360 | ||
8979685e | 1361 | } |
4551ea7c | 1362 | |
59393e34 | 1363 | } |
4551ea7c | 1364 | |
1365 | ratio0 = ncl / Float_t(fTimeBinsPerPlane); | |
27eaf44b | 1366 | Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1); |
1367 | if ((tracklet.GetChi2() < 18.0) && | |
1368 | (ratio0 > 0.8) && | |
1369 | (ratio1 > 0.6) && | |
1370 | (ratio0+ratio1 > 1.5) && | |
1371 | (t.GetNCross() == 0) && | |
1372 | (TMath::Abs(t.GetSnp()) < 0.85) && | |
1373 | (t.GetNumberOfClusters() > 20)){ | |
7e448bcc | 1374 | //if (ratio0 > 0.8) { |
4551ea7c | 1375 | t.MakeBackupTrack(); // Make backup of the track until is gold |
59393e34 | 1376 | } |
7b580082 | 1377 | |
8979685e | 1378 | } |
5443e65e | 1379 | |
75bd7f81 | 1380 | return expectedNumberOfClusters; |
75bd7f81 | 1381 | } |
1e9bb598 | 1382 | |
75bd7f81 | 1383 | //_____________________________________________________________________________ |
4551ea7c | 1384 | Int_t AliTRDtracker::PropagateToX(AliTRDtrack &t, Double_t xToGo, Double_t maxStep) |
5443e65e | 1385 | { |
75bd7f81 | 1386 | // |
5443e65e | 1387 | // Starting from current radial position of track <t> this function |
1388 | // extrapolates the track up to radial position <xToGo>. | |
1389 | // Returns 1 if track reaches the plane, and 0 otherwise | |
75bd7f81 | 1390 | // |
1391 | ||
59393e34 | 1392 | const Double_t kEpsilon = 0.00001; |
4551ea7c | 1393 | //Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); |
1394 | Double_t xpos = t.GetX(); | |
1395 | Double_t dir = (xpos<xToGo) ? 1.0 : -1.0; | |
1396 | ||
1397 | while (((xToGo-xpos)*dir) > kEpsilon) { | |
1398 | ||
1399 | Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep); | |
1400 | ||
1401 | Double_t xyz0[3]; | |
1402 | Double_t xyz1[3]; | |
1403 | Double_t param[7]; | |
1404 | Double_t x; | |
1405 | Double_t y; | |
1406 | Double_t z; | |
1407 | // Starting global position | |
1408 | t.GetXYZ(xyz0); | |
1409 | x = xpos + step; | |
1410 | ||
1411 | if (!t.GetProlongation(x,y,z)) { | |
1412 | return 0; // No prolongation | |
1413 | } | |
1414 | ||
1415 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1416 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1417 | xyz1[2] = z; | |
1418 | ||
59393e34 | 1419 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1420 | if (!t.PropagateTo(x,param[1],param[0])) { |
1421 | return 0; | |
1422 | } | |
59393e34 | 1423 | AdjustSector(&t); |
1424 | xpos = t.GetX(); | |
4551ea7c | 1425 | |
5443e65e | 1426 | } |
75bd7f81 | 1427 | |
5443e65e | 1428 | return 1; |
5443e65e | 1429 | |
59393e34 | 1430 | } |
5443e65e | 1431 | |
c630aafd | 1432 | //_____________________________________________________________________________ |
1433 | Int_t AliTRDtracker::LoadClusters(TTree *cTree) | |
1434 | { | |
75bd7f81 | 1435 | // |
c630aafd | 1436 | // Fills clusters into TRD tracking_sectors |
1437 | // Note that the numbering scheme for the TRD tracking_sectors | |
1438 | // differs from that of TRD sectors | |
75bd7f81 | 1439 | // |
1440 | ||
c630aafd | 1441 | if (ReadClusters(fClusters,cTree)) { |
4551ea7c | 1442 | AliError("Problem with reading the clusters !"); |
c630aafd | 1443 | return 1; |
1444 | } | |
4551ea7c | 1445 | Int_t ncl = fClusters->GetEntriesFast(); |
1446 | fNclusters = ncl; | |
1447 | AliInfo(Form("Sorting %d clusters",ncl)); | |
c630aafd | 1448 | |
1449 | UInt_t index; | |
4551ea7c | 1450 | for (Int_t ichamber = 0; ichamber < 5; ichamber++) { |
1451 | for (Int_t isector = 0; isector < 18; isector++) { | |
1452 | fHoles[ichamber][isector] = kTRUE; | |
3c625a9b | 1453 | } |
4551ea7c | 1454 | } |
ad670fba | 1455 | |
6c94f330 | 1456 | while (ncl--) { |
33744e5d | 1457 | |
4551ea7c | 1458 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(ncl); |
1459 | Int_t detector = c->GetDetector(); | |
1460 | Int_t localTimeBin = c->GetLocalTimeBin(); | |
1461 | Int_t sector = fGeom->GetSector(detector); | |
1462 | Int_t plane = fGeom->GetPlane(detector); | |
439c63c8 | 1463 | Int_t trackingSector = sector; |
4551ea7c | 1464 | |
7e448bcc | 1465 | //if (c->GetLabel(0) > 0) { |
1466 | if (c->GetQ() > 10) { | |
3c625a9b | 1467 | Int_t chamber = fGeom->GetChamber(detector); |
4551ea7c | 1468 | fHoles[chamber][trackingSector] = kFALSE; |
3c625a9b | 1469 | } |
c630aafd | 1470 | |
6c94f330 | 1471 | Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); |
4551ea7c | 1472 | if (gtb < 0) { |
1473 | continue; | |
1474 | } | |
029cd327 | 1475 | Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); |
c630aafd | 1476 | |
4551ea7c | 1477 | index = ncl; |
33744e5d | 1478 | |
1479 | // Apply pos correction | |
7e448bcc | 1480 | Transform(c); |
1481 | fHXCl->Fill(c->GetX()); | |
33744e5d | 1482 | |
7e448bcc | 1483 | fTrSec[trackingSector]->GetLayer(layer)->SetX(c->GetX()); |
1484 | fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); | |
4551ea7c | 1485 | } |
75bd7f81 | 1486 | |
c630aafd | 1487 | return 0; |
75bd7f81 | 1488 | |
c630aafd | 1489 | } |
1490 | ||
5443e65e | 1491 | //_____________________________________________________________________________ |
b7a0917f | 1492 | void AliTRDtracker::UnloadClusters() |
5443e65e | 1493 | { |
1494 | // | |
1495 | // Clears the arrays of clusters and tracks. Resets sectors and timebins | |
1496 | // | |
1497 | ||
4551ea7c | 1498 | Int_t i; |
1499 | Int_t nentr; | |
5443e65e | 1500 | |
1501 | nentr = fClusters->GetEntriesFast(); | |
4551ea7c | 1502 | for (i = 0; i < nentr; i++) { |
1503 | delete fClusters->RemoveAt(i); | |
1504 | } | |
b7a0917f | 1505 | fNclusters = 0; |
5443e65e | 1506 | |
1507 | nentr = fSeeds->GetEntriesFast(); | |
4551ea7c | 1508 | for (i = 0; i < nentr; i++) { |
1509 | delete fSeeds->RemoveAt(i); | |
1510 | } | |
5443e65e | 1511 | |
1512 | nentr = fTracks->GetEntriesFast(); | |
4551ea7c | 1513 | for (i = 0; i < nentr; i++) { |
1514 | delete fTracks->RemoveAt(i); | |
1515 | } | |
5443e65e | 1516 | |
1517 | Int_t nsec = AliTRDgeometry::kNsect; | |
5443e65e | 1518 | for (i = 0; i < nsec; i++) { |
1519 | for(Int_t pl = 0; pl < fTrSec[i]->GetNumberOfLayers(); pl++) { | |
1520 | fTrSec[i]->GetLayer(pl)->Clear(); | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | } | |
1525 | ||
75bd7f81 | 1526 | //_____________________________________________________________________________ |
4551ea7c | 1527 | void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD *esd) |
7ad19338 | 1528 | { |
1529 | // | |
1530 | // Creates seeds using clusters between position inner plane and outer plane | |
1531 | // | |
75bd7f81 | 1532 | |
4551ea7c | 1533 | const Double_t kMaxTheta = 1.0; |
1534 | const Double_t kMaxPhi = 2.0; | |
1535 | ||
1536 | const Double_t kRoad0y = 6.0; // Road for middle cluster | |
1537 | const Double_t kRoad0z = 8.5; // Road for middle cluster | |
1538 | ||
1539 | const Double_t kRoad1y = 2.0; // Road in y for seeded cluster | |
1540 | const Double_t kRoad1z = 20.0; // Road in z for seeded cluster | |
1541 | ||
1542 | const Double_t kRoad2y = 3.0; // Road in y for extrapolated cluster | |
1543 | const Double_t kRoad2z = 20.0; // Road in z for extrapolated cluster | |
c6f438c0 | 1544 | const Int_t kMaxSeed = 3000; |
7ad19338 | 1545 | |
4551ea7c | 1546 | Int_t maxSec = AliTRDgeometry::kNsect; |
1547 | ||
1548 | // Linear fitters in planes | |
1549 | TLinearFitter fitterTC(2,"hyp2"); // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const | |
1550 | TLinearFitter fitterT2(4,"hyp4"); // Fitting with tilting pads - kz not fixed | |
69b55c55 | 1551 | fitterTC.StoreData(kTRUE); |
1552 | fitterT2.StoreData(kTRUE); | |
4551ea7c | 1553 | AliRieman rieman(1000); // Rieman fitter |
1554 | AliRieman rieman2(1000); // Rieman fitter | |
1555 | ||
1556 | // Find the maximal and minimal layer for the planes | |
7ad19338 | 1557 | Int_t layers[6][2]; |
4551ea7c | 1558 | AliTRDpropagationLayer *reflayers[6]; |
1559 | for (Int_t i = 0; i < 6; i++) { | |
1560 | layers[i][0] = 10000; | |
1561 | layers[i][1] = 0; | |
1562 | } | |
1563 | for (Int_t ns = 0; ns < maxSec; ns++) { | |
1564 | for (Int_t ilayer = 0; ilayer < fTrSec[ns]->GetNumberOfLayers(); ilayer++) { | |
1565 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(ilayer)); | |
1566 | if (layer == 0) { | |
1567 | continue; | |
1568 | } | |
7ad19338 | 1569 | Int_t det = layer[0]->GetDetector(); |
1570 | Int_t plane = fGeom->GetPlane(det); | |
4551ea7c | 1571 | if (ilayer < layers[plane][0]) { |
1572 | layers[plane][0] = ilayer; | |
1573 | } | |
1574 | if (ilayer > layers[plane][1]) { | |
1575 | layers[plane][1] = ilayer; | |
1576 | } | |
7ad19338 | 1577 | } |
1578 | } | |
4551ea7c | 1579 | |
3551db50 | 1580 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); |
6c94f330 | 1581 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
4551ea7c | 1582 | Double_t hL[6]; // Tilting angle |
1583 | Double_t xcl[6]; // X - position of reference cluster | |
1584 | Double_t ycl[6]; // Y - position of reference cluster | |
1585 | Double_t zcl[6]; // Z - position of reference cluster | |
1586 | ||
1587 | AliTRDcluster *cl[6] = { 0, 0, 0, 0, 0, 0 }; // Seeding clusters | |
1588 | Float_t padlength[6] = { 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 }; // Current pad-length | |
1589 | ||
1590 | Double_t chi2R = 0.0; | |
1591 | Double_t chi2Z = 0.0; | |
1592 | Double_t chi2RF = 0.0; | |
1593 | Double_t chi2ZF = 0.0; | |
1594 | ||
1595 | Int_t nclusters; // Total number of clusters | |
1596 | for (Int_t i = 0; i < 6; i++) { | |
1597 | hL[i] = h01; | |
1598 | if (i%2==1) { | |
1599 | hL[i]*=-1.0; | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | // Registered seed | |
c6f438c0 | 1604 | AliTRDseed *pseed = new AliTRDseed[kMaxSeed*6]; |
1605 | AliTRDseed *seed[kMaxSeed]; | |
4551ea7c | 1606 | for (Int_t iseed = 0; iseed < kMaxSeed; iseed++) { |
1607 | seed[iseed]= &pseed[iseed*6]; | |
1608 | } | |
69b55c55 | 1609 | AliTRDseed *cseed = seed[0]; |
4551ea7c | 1610 | |
1611 | Double_t seedquality[kMaxSeed]; | |
1612 | Double_t seedquality2[kMaxSeed]; | |
1613 | Double_t seedparams[kMaxSeed][7]; | |
1614 | Int_t seedlayer[kMaxSeed]; | |
1615 | Int_t registered = 0; | |
1616 | Int_t sort[kMaxSeed]; | |
1617 | ||
1618 | // | |
1619 | // Seeding part | |
1620 | // | |
1621 | for (Int_t ns = 0; ns < maxSec; ns++) { // Loop over sectors | |
1622 | //for (Int_t ns = 0; ns < 5; ns++) { // Loop over sectors | |
1623 | ||
1624 | registered = 0; // Reset registerd seed counter | |
1625 | cseed = seed[registered]; | |
1626 | Float_t iter = 0.0; | |
1627 | ||
1628 | for (Int_t sLayer = 2; sLayer >= 0; sLayer--) { | |
1629 | //for (Int_t dseed = 5; dseed < 15; dseed += 3) { | |
1630 | ||
1631 | iter += 1.0; | |
1632 | Int_t dseed = 5 + Int_t(iter) * 3; | |
1633 | ||
69b55c55 | 1634 | // Initialize seeding layers |
4551ea7c | 1635 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { |
69b55c55 | 1636 | reflayers[ilayer] = fTrSec[ns]->GetLayer(layers[ilayer][1]-dseed); |
1637 | xcl[ilayer] = reflayers[ilayer]->GetX(); | |
4551ea7c | 1638 | } |
1639 | ||
1640 | Double_t xref = (xcl[sLayer+1] + xcl[sLayer+2]) * 0.5; | |
1641 | AliTRDpropagationLayer &layer0 = *reflayers[sLayer+0]; | |
1642 | AliTRDpropagationLayer &layer1 = *reflayers[sLayer+1]; | |
1643 | AliTRDpropagationLayer &layer2 = *reflayers[sLayer+2]; | |
1644 | AliTRDpropagationLayer &layer3 = *reflayers[sLayer+3]; | |
1645 | ||
1646 | Int_t maxn3 = layer3; | |
1647 | for (Int_t icl3 = 0; icl3 < maxn3; icl3++) { | |
33744e5d | 1648 | |
69b55c55 | 1649 | AliTRDcluster *cl3 = layer3[icl3]; |
4551ea7c | 1650 | if (!cl3) { |
1651 | continue; | |
1652 | } | |
1653 | padlength[sLayer+3] = TMath::Sqrt(cl3->GetSigmaZ2() * 12.0); | |
69b55c55 | 1654 | ycl[sLayer+3] = cl3->GetY(); |
1655 | zcl[sLayer+3] = cl3->GetZ(); | |
4551ea7c | 1656 | Float_t yymin0 = ycl[sLayer+3] - 1.0 - kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); |
1657 | Float_t yymax0 = ycl[sLayer+3] + 1.0 + kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); | |
1658 | Int_t maxn0 = layer0; | |
1659 | ||
1660 | for (Int_t icl0 = layer0.Find(yymin0); icl0 < maxn0; icl0++) { | |
1661 | ||
69b55c55 | 1662 | AliTRDcluster *cl0 = layer0[icl0]; |
4551ea7c | 1663 | if (!cl0) { |
1664 | continue; | |
1665 | } | |
1666 | if (cl3->IsUsed() && cl0->IsUsed()) { | |
1667 | continue; | |
1668 | } | |
69b55c55 | 1669 | ycl[sLayer+0] = cl0->GetY(); |
1670 | zcl[sLayer+0] = cl0->GetZ(); | |
4551ea7c | 1671 | if (ycl[sLayer+0] > yymax0) { |
1672 | break; | |
1673 | } | |
1674 | Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1675 | if (TMath::Abs(tanphi) > kMaxPhi) { | |
1676 | continue; | |
1677 | } | |
1678 | Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1679 | if (TMath::Abs(tantheta) > kMaxTheta) { | |
1680 | continue; | |
1681 | } | |
1682 | padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2() * 12.0); | |
1683 | ||
1684 | // Expected position in 1 layer | |
1685 | Double_t y1exp = ycl[sLayer+0] + (tanphi) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1686 | Double_t z1exp = zcl[sLayer+0] + (tantheta) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1687 | Float_t yymin1 = y1exp - kRoad0y - tanphi; | |
1688 | Float_t yymax1 = y1exp + kRoad0y + tanphi; | |
1689 | Int_t maxn1 = layer1; | |
1690 | ||
1691 | for (Int_t icl1 = layer1.Find(yymin1); icl1 < maxn1; icl1++) { | |
1692 | ||
69b55c55 | 1693 | AliTRDcluster *cl1 = layer1[icl1]; |
4551ea7c | 1694 | if (!cl1) { |
1695 | continue; | |
1696 | } | |
69b55c55 | 1697 | Int_t nusedCl = 0; |
1698 | if (cl3->IsUsed()) nusedCl++; | |
1699 | if (cl0->IsUsed()) nusedCl++; | |
1700 | if (cl1->IsUsed()) nusedCl++; | |
4551ea7c | 1701 | if (nusedCl > 1) { |
1702 | continue; | |
1703 | } | |
69b55c55 | 1704 | ycl[sLayer+1] = cl1->GetY(); |
1705 | zcl[sLayer+1] = cl1->GetZ(); | |
4551ea7c | 1706 | if (ycl[sLayer+1] > yymax1) { |
1707 | break; | |
1708 | } | |
1709 | if (TMath::Abs(ycl[sLayer+1]-y1exp) > kRoad0y+tanphi) { | |
1710 | continue; | |
1711 | } | |
1712 | if (TMath::Abs(zcl[sLayer+1]-z1exp) > kRoad0z) { | |
1713 | continue; | |
1714 | } | |
1715 | padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2() * 12.0); | |
1716 | ||
1717 | Double_t y2exp = ycl[sLayer+0]+(tanphi) * (xcl[sLayer+2]-xcl[sLayer+0]) + (ycl[sLayer+1]-y1exp); | |
1718 | Double_t z2exp = zcl[sLayer+0]+(tantheta) * (xcl[sLayer+2]-xcl[sLayer+0]); | |
1719 | Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y,kRoad1z); | |
1720 | if (index2 <= 0) { | |
1721 | continue; | |
1722 | } | |
1723 | AliTRDcluster *cl2 = (AliTRDcluster *) GetCluster(index2); | |
1724 | padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2() * 12.0); | |
1725 | ycl[sLayer+2] = cl2->GetY(); | |
1726 | zcl[sLayer+2] = cl2->GetZ(); | |
1727 | if (TMath::Abs(cl2->GetZ()-z2exp) > kRoad0z) { | |
1728 | continue; | |
1729 | } | |
1730 | ||
69b55c55 | 1731 | rieman.Reset(); |
1732 | rieman.AddPoint(xcl[sLayer+0],ycl[sLayer+0],zcl[sLayer+0],1,10); | |
1733 | rieman.AddPoint(xcl[sLayer+1],ycl[sLayer+1],zcl[sLayer+1],1,10); | |
1734 | rieman.AddPoint(xcl[sLayer+3],ycl[sLayer+3],zcl[sLayer+3],1,10); | |
1735 | rieman.AddPoint(xcl[sLayer+2],ycl[sLayer+2],zcl[sLayer+2],1,10); | |
1736 | rieman.Update(); | |
4551ea7c | 1737 | |
1738 | // Reset fitter | |
1739 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
69b55c55 | 1740 | cseed[iLayer].Reset(); |
1741 | } | |
4551ea7c | 1742 | chi2Z = 0.0; |
1743 | chi2R = 0.0; | |
1744 | ||
1745 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1746 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); |
1747 | chi2Z += (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]) | |
1748 | * (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]); | |
1749 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
1750 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); | |
1751 | chi2R += (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]) | |
1752 | * (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]); | |
1753 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
69b55c55 | 1754 | } |
4551ea7c | 1755 | if (TMath::Sqrt(chi2R) > 1.0/iter) { |
1756 | continue; | |
1757 | } | |
1758 | if (TMath::Sqrt(chi2Z) > 7.0/iter) { | |
1759 | continue; | |
69b55c55 | 1760 | } |
4551ea7c | 1761 | |
1762 | Float_t minmax[2] = { -100.0, 100.0 }; | |
1763 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1764 | Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1765 | + 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1766 | if (max < minmax[1]) { |
1767 | minmax[1] = max; | |
1768 | } | |
1769 | Float_t min = zcl[sLayer+iLayer]-padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1770 | - 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1771 | if (min > minmax[0]) { |
1772 | minmax[0] = min; | |
1773 | } | |
1774 | } | |
1775 | ||
69b55c55 | 1776 | Bool_t isFake = kFALSE; |
4551ea7c | 1777 | if (cl0->GetLabel(0) != cl3->GetLabel(0)) { |
1778 | isFake = kTRUE; | |
1779 | } | |
1780 | if (cl1->GetLabel(0) != cl3->GetLabel(0)) { | |
1781 | isFake = kTRUE; | |
1782 | } | |
1783 | if (cl2->GetLabel(0) != cl3->GetLabel(0)) { | |
1784 | isFake = kTRUE; | |
1785 | } | |
1786 | ||
1787 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
1788 | if ((!isFake) || ((icl3%10) == 0)) { // Debugging print | |
1789 | TTreeSRedirector &cstream = *fDebugStreamer; | |
1790 | cstream << "Seeds0" | |
1791 | << "isFake=" << isFake | |
1792 | << "Cl0.=" << cl0 | |
1793 | << "Cl1.=" << cl1 | |
1794 | << "Cl2.=" << cl2 | |
1795 | << "Cl3.=" << cl3 | |
1796 | << "Xref=" << xref | |
1797 | << "X0=" << xcl[sLayer+0] | |
1798 | << "X1=" << xcl[sLayer+1] | |
1799 | << "X2=" << xcl[sLayer+2] | |
1800 | << "X3=" << xcl[sLayer+3] | |
1801 | << "Y2exp=" << y2exp | |
1802 | << "Z2exp=" << z2exp | |
1803 | << "Chi2R=" << chi2R | |
1804 | << "Chi2Z=" << chi2Z | |
1805 | << "Seed0.=" << &cseed[sLayer+0] | |
1806 | << "Seed1.=" << &cseed[sLayer+1] | |
1807 | << "Seed2.=" << &cseed[sLayer+2] | |
1808 | << "Seed3.=" << &cseed[sLayer+3] | |
1809 | << "Zmin=" << minmax[0] | |
1810 | << "Zmax=" << minmax[1] | |
1811 | << "\n"; | |
d337ef8d | 1812 | } |
69b55c55 | 1813 | } |
33744e5d | 1814 | |
4551ea7c | 1815 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1816 | // |
4551ea7c | 1817 | // Fit seeding part |
33744e5d | 1818 | // |
4551ea7c | 1819 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1820 | |
69b55c55 | 1821 | cl[sLayer+0] = cl0; |
1822 | cl[sLayer+1] = cl1; | |
1823 | cl[sLayer+2] = cl2; | |
1824 | cl[sLayer+3] = cl3; | |
4551ea7c | 1825 | Bool_t isOK = kTRUE; |
1826 | ||
1827 | for (Int_t jLayer = 0; jLayer < 4; jLayer++) { | |
1828 | ||
ca1e1e5b | 1829 | cseed[sLayer+jLayer].SetTilt(hL[sLayer+jLayer]); |
1830 | cseed[sLayer+jLayer].SetPadLength(padlength[sLayer+jLayer]); | |
1831 | cseed[sLayer+jLayer].SetX0(xcl[sLayer+jLayer]); | |
4551ea7c | 1832 | |
1833 | for (Int_t iter = 0; iter < 2; iter++) { | |
1834 | ||
69b55c55 | 1835 | // |
4551ea7c | 1836 | // In iteration 0 we try only one pad-row |
1837 | // If quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows | |
69b55c55 | 1838 | // |
1839 | AliTRDseed tseed = cseed[sLayer+jLayer]; | |
4551ea7c | 1840 | Float_t roadz = padlength[sLayer+jLayer] * 0.5; |
1841 | if (iter > 0) { | |
1842 | roadz = padlength[sLayer+jLayer]; | |
1843 | } | |
1844 | ||
1845 | Float_t quality = 10000.0; | |
1846 | ||
1847 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
1848 | ||
1849 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime)); | |
1850 | Double_t dxlayer = layer.GetX() - xcl[sLayer+jLayer]; | |
1851 | Double_t zexp = cl[sLayer+jLayer]->GetZ(); | |
1852 | ||
1853 | if (iter > 0) { | |
1854 | // Try 2 pad-rows in second iteration | |
ca1e1e5b | 1855 | zexp = tseed.GetZref(0) + tseed.GetZref(1) * dxlayer; |
4551ea7c | 1856 | if (zexp > cl[sLayer+jLayer]->GetZ()) { |
1857 | zexp = cl[sLayer+jLayer]->GetZ() + padlength[sLayer+jLayer]*0.5; | |
1858 | } | |
1859 | if (zexp < cl[sLayer+jLayer]->GetZ()) { | |
1860 | zexp = cl[sLayer+jLayer]->GetZ() - padlength[sLayer+jLayer]*0.5; | |
1861 | } | |
69b55c55 | 1862 | } |
4551ea7c | 1863 | |
ca1e1e5b | 1864 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 1865 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
1866 | if (index <= 0) { | |
1867 | continue; | |
1868 | } | |
1869 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
1870 | ||
ca1e1e5b | 1871 | tseed.SetIndexes(iTime,index); |
1872 | tseed.SetClusters(iTime,cl); // Register cluster | |
1873 | tseed.SetX(iTime,dxlayer); // Register cluster | |
1874 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
1875 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 1876 | |
1877 | } | |
1878 | ||
69b55c55 | 1879 | tseed.Update(); |
4551ea7c | 1880 | |
1881 | // Count the number of clusters and distortions into quality | |
ca1e1e5b | 1882 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
1883 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
1884 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
1885 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 1886 | if ((iter == 0) && tseed.IsOK()) { |
1887 | cseed[sLayer+jLayer] = tseed; | |
1888 | quality = tquality; | |
1889 | if (tquality < 5) { | |
1890 | break; | |
1891 | } | |
1892 | } | |
1893 | if (tseed.IsOK() && (tquality < quality)) { | |
69b55c55 | 1894 | cseed[sLayer+jLayer] = tseed; |
69b55c55 | 1895 | } |
4551ea7c | 1896 | |
1897 | } // Loop: iter | |
1898 | ||
1899 | if (!cseed[sLayer+jLayer].IsOK()) { | |
69b55c55 | 1900 | isOK = kFALSE; |
1901 | break; | |
4551ea7c | 1902 | } |
1903 | ||
69b55c55 | 1904 | cseed[sLayer+jLayer].CookLabels(); |
1905 | cseed[sLayer+jLayer].UpdateUsed(); | |
ca1e1e5b | 1906 | nusedCl += cseed[sLayer+jLayer].GetNUsed(); |
4551ea7c | 1907 | if (nusedCl > 25) { |
69b55c55 | 1908 | isOK = kFALSE; |
1909 | break; | |
4551ea7c | 1910 | } |
1911 | ||
1912 | } // Loop: jLayer | |
1913 | ||
1914 | if (!isOK) { | |
1915 | continue; | |
69b55c55 | 1916 | } |
4551ea7c | 1917 | nclusters = 0; |
1918 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1919 | if (cseed[sLayer+iLayer].IsOK()) { | |
ca1e1e5b | 1920 | nclusters += cseed[sLayer+iLayer].GetN2(); |
69b55c55 | 1921 | } |
1922 | } | |
4551ea7c | 1923 | |
1924 | // Iteration 0 | |
69b55c55 | 1925 | rieman.Reset(); |
4551ea7c | 1926 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { |
1927 | rieman.AddPoint(xcl[sLayer+iLayer] | |
ca1e1e5b | 1928 | ,cseed[sLayer+iLayer].GetYfitR(0) |
1929 | ,cseed[sLayer+iLayer].GetZProb() | |
4551ea7c | 1930 | ,1 |
1931 | ,10); | |
69b55c55 | 1932 | } |
1933 | rieman.Update(); | |
4551ea7c | 1934 | |
1935 | chi2R = 0.0; | |
1936 | chi2Z = 0.0; | |
1937 | ||
1938 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1939 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); |
1940 | chi2R += (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)) | |
1941 | * (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)); | |
1942 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
1943 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); | |
1944 | chi2Z += (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()) | |
1945 | * (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()); | |
1946 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
69b55c55 | 1947 | } |
1948 | Double_t curv = rieman.GetC(); | |
4551ea7c | 1949 | |
69b55c55 | 1950 | // |
4551ea7c | 1951 | // Likelihoods |
6c94f330 | 1952 | // |
ca1e1e5b | 1953 | Double_t sumda = TMath::Abs(cseed[sLayer+0].GetYfitR(1) - cseed[sLayer+0].GetYref(1)) |
1954 | + TMath::Abs(cseed[sLayer+1].GetYfitR(1) - cseed[sLayer+1].GetYref(1)) | |
1955 | + TMath::Abs(cseed[sLayer+2].GetYfitR(1) - cseed[sLayer+2].GetYref(1)) | |
1956 | + TMath::Abs(cseed[sLayer+3].GetYfitR(1) - cseed[sLayer+3].GetYref(1)); | |
4551ea7c | 1957 | Double_t likea = TMath::Exp(-sumda*10.6); |
1958 | Double_t likechi2 = 0.0000000001; | |
1959 | if (chi2R < 0.5) { | |
1960 | likechi2 += TMath::Exp(-TMath::Sqrt(chi2R) * 7.73); | |
1961 | } | |
1962 | Double_t likechi2z = TMath::Exp(-chi2Z * 0.088) / TMath::Exp(-chi2Z * 0.019); | |
1963 | Double_t likeN = TMath::Exp(-(72 - nclusters) * 0.19); | |
1964 | Double_t like = likea * likechi2 * likechi2z * likeN; | |
ca1e1e5b | 1965 | Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetYref(1) - 130.0*curv) * 1.9); |
1966 | Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetZref(1) | |
1967 | - cseed[sLayer+0].GetZref(0) / xcl[sLayer+0]) * 5.9); | |
6c94f330 | 1968 | Double_t likePrim = TMath::Max(likePrimY*likePrimZ,0.0005); |
69b55c55 | 1969 | |
4551ea7c | 1970 | seedquality[registered] = like; |
1971 | seedlayer[registered] = sLayer; | |
1972 | if (TMath::Log(0.000000000000001 + like) < -15) { | |
1973 | continue; | |
1974 | } | |
69b55c55 | 1975 | AliTRDseed seedb[6]; |
4551ea7c | 1976 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
69b55c55 | 1977 | seedb[iLayer] = cseed[iLayer]; |
1978 | } | |
4551ea7c | 1979 | |
1980 | //////////////////////////////////////////////////////////////////////////////////// | |
ad670fba | 1981 | // |
4551ea7c | 1982 | // Full track fit part |
33744e5d | 1983 | // |
4551ea7c | 1984 | //////////////////////////////////////////////////////////////////////////////////// |
1985 | ||
1986 | Int_t nlayers = 0; | |
1987 | Int_t nusedf = 0; | |
1988 | Int_t findable = 0; | |
1989 | ||
69b55c55 | 1990 | // |
4551ea7c | 1991 | // Add new layers - avoid long extrapolation |
69b55c55 | 1992 | // |
4551ea7c | 1993 | Int_t tLayer[2] = { 0, 0 }; |
1994 | if (sLayer == 2) { | |
1995 | tLayer[0] = 1; | |
1996 | tLayer[1] = 0; | |
1997 | } | |
1998 | if (sLayer == 1) { | |
1999 | tLayer[0] = 5; | |
2000 | tLayer[1] = 0; | |
2001 | } | |
2002 | if (sLayer == 0) { | |
2003 | tLayer[0] = 4; | |
2004 | tLayer[1] = 5; | |
2005 | } | |
2006 | ||
2007 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
2008 | Int_t jLayer = tLayer[iLayer]; // Set tracking layer | |
69b55c55 | 2009 | cseed[jLayer].Reset(); |
ca1e1e5b | 2010 | cseed[jLayer].SetTilt(hL[jLayer]); |
2011 | cseed[jLayer].SetPadLength(padlength[jLayer]); | |
2012 | cseed[jLayer].SetX0(xcl[jLayer]); | |
4551ea7c | 2013 | // Get pad length and rough cluster |
ca1e1e5b | 2014 | Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].GetYref(0) |
2015 | ,cseed[jLayer].GetZref(0) | |
4551ea7c | 2016 | ,kRoad2y |
2017 | ,kRoad2z); | |
2018 | if (indexdummy <= 0) { | |
2019 | continue; | |
2020 | } | |
2021 | AliTRDcluster *cldummy = (AliTRDcluster *) GetCluster(indexdummy); | |
2022 | padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2() * 12.0); | |
69b55c55 | 2023 | } |
4551ea7c | 2024 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
2025 | ||
2026 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
2027 | ||
2028 | Int_t jLayer = tLayer[iLayer]; // set tracking layer | |
2029 | if ((jLayer == 0) && !(cseed[1].IsOK())) { | |
2030 | continue; // break not allowed | |
2031 | } | |
2032 | if ((jLayer == 5) && !(cseed[4].IsOK())) { | |
2033 | continue; // break not allowed | |
2034 | } | |
ca1e1e5b | 2035 | Float_t zexp = cseed[jLayer].GetZref(0); |
4551ea7c | 2036 | Double_t zroad = padlength[jLayer] * 0.5 + 1.0; |
2037 | ||
2038 | for (Int_t iter = 0; iter < 2; iter++) { | |
2039 | ||
69b55c55 | 2040 | AliTRDseed tseed = cseed[jLayer]; |
4551ea7c | 2041 | Float_t quality = 10000.0; |
2042 | ||
2043 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
2044 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime)); | |
2045 | Double_t dxlayer = layer.GetX()-xcl[jLayer]; | |
ca1e1e5b | 2046 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 2047 | Float_t yroad = kRoad1y; |
2048 | Int_t index = layer.FindNearestCluster(yexp,zexp,yroad,zroad); | |
2049 | if (index <= 0) { | |
2050 | continue; | |
2051 | } | |
2052 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
ca1e1e5b | 2053 | tseed.SetIndexes(iTime,index); |
2054 | tseed.SetClusters(iTime,cl); // Register cluster | |
2055 | tseed.SetX(iTime,dxlayer); // Register cluster | |
2056 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
2057 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 2058 | } |
2059 | ||
69b55c55 | 2060 | tseed.Update(); |
4551ea7c | 2061 | if (tseed.IsOK()) { |
ca1e1e5b | 2062 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
2063 | Float_t tquality = (18.0 - tseed.GetN2())/2.0 + TMath::Abs(dangle) / 0.1 | |
2064 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
2065 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2066 | if (tquality < quality) { |
2067 | cseed[jLayer] = tseed; | |
2068 | quality = tquality; | |
69b55c55 | 2069 | } |
2070 | } | |
4551ea7c | 2071 | |
2072 | zroad *= 2.0; | |
2073 | ||
2074 | } // Loop: iter | |
2075 | ||
2076 | if ( cseed[jLayer].IsOK()) { | |
69b55c55 | 2077 | cseed[jLayer].CookLabels(); |
2078 | cseed[jLayer].UpdateUsed(); | |
ca1e1e5b | 2079 | nusedf += cseed[jLayer].GetNUsed(); |
4551ea7c | 2080 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
69b55c55 | 2081 | } |
4551ea7c | 2082 | |
2083 | } // Loop: iLayer | |
2084 | ||
2085 | // Make copy | |
69b55c55 | 2086 | AliTRDseed bseed[6]; |
4551ea7c | 2087 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { |
69b55c55 | 2088 | bseed[jLayer] = cseed[jLayer]; |
4551ea7c | 2089 | } |
2090 | Float_t lastquality = 10000.0; | |
2091 | Float_t lastchi2 = 10000.0; | |
2092 | Float_t chi2 = 1000.0; | |
2093 | ||
2094 | for (Int_t iter = 0; iter < 4; iter++) { | |
2095 | ||
2096 | // Sort tracklets according "quality", try to "improve" 4 worst | |
2097 | Float_t sumquality = 0.0; | |
69b55c55 | 2098 | Float_t squality[6]; |
2099 | Int_t sortindexes[6]; | |
4551ea7c | 2100 | |
2101 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2102 | if (bseed[jLayer].IsOK()) { | |
69b55c55 | 2103 | AliTRDseed &tseed = bseed[jLayer]; |
ca1e1e5b | 2104 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); |
2105 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); | |
2106 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
2107 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
2108 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2109 | squality[jLayer] = tquality; |
2110 | } | |
2111 | else { | |
2112 | squality[jLayer] = -1.0; | |
ad670fba | 2113 | } |
6c94f330 | 2114 | sumquality +=squality[jLayer]; |
69b55c55 | 2115 | } |
2116 | ||
4551ea7c | 2117 | if ((sumquality >= lastquality) || |
2118 | (chi2 > lastchi2)) { | |
2119 | break; | |
2120 | } | |
69b55c55 | 2121 | lastquality = sumquality; |
2122 | lastchi2 = chi2; | |
4551ea7c | 2123 | if (iter > 0) { |
2124 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
69b55c55 | 2125 | cseed[jLayer] = bseed[jLayer]; |
2126 | } | |
2127 | } | |
2128 | TMath::Sort(6,squality,sortindexes,kFALSE); | |
4551ea7c | 2129 | |
2130 | for (Int_t jLayer = 5; jLayer > 1; jLayer--) { | |
2131 | ||
6c94f330 | 2132 | Int_t bLayer = sortindexes[jLayer]; |
2133 | AliTRDseed tseed = bseed[bLayer]; | |
4551ea7c | 2134 | |
2135 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
2136 | ||
2137 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime)); | |
2138 | Double_t dxlayer = layer.GetX() - xcl[bLayer]; | |
ca1e1e5b | 2139 | Double_t zexp = tseed.GetZref(0); |
2140 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
4551ea7c | 2141 | Float_t roadz = padlength[bLayer] + 1; |
ca1e1e5b | 2142 | if (TMath::Abs(tseed.GetZProb() - zexp) > 0.5*padlength[bLayer]) { |
4551ea7c | 2143 | roadz = padlength[bLayer] * 0.5; |
2144 | } | |
ca1e1e5b | 2145 | if (tseed.GetZfit(1)*tseed.GetZref(1) < 0.0) { |
4551ea7c | 2146 | roadz = padlength[bLayer] * 0.5; |
2147 | } | |
ca1e1e5b | 2148 | if (TMath::Abs(tseed.GetZProb() - zexp) < 0.1*padlength[bLayer]) { |
2149 | zexp = tseed.GetZProb(); | |
4551ea7c | 2150 | roadz = padlength[bLayer] * 0.5; |
2151 | } | |
2152 | ||
ca1e1e5b | 2153 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer - zcor; |
4551ea7c | 2154 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
2155 | if (index <= 0) { | |
2156 | continue; | |
69b55c55 | 2157 | } |
4551ea7c | 2158 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); |
2159 | ||
ca1e1e5b | 2160 | tseed.SetIndexes(iTime,index); |
2161 | tseed.SetClusters(iTime,cl); // Register cluster | |
2162 | tseed.SetX(iTime,dxlayer); // Register cluster | |
2163 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
2164 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 2165 | |
2166 | } | |
2167 | ||
69b55c55 | 2168 | tseed.Update(); |
c6f438c0 | 2169 | if (tseed.IsOK()) { |
ca1e1e5b | 2170 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
2171 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
2172 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 | |
2173 | + TMath::Abs(dangle) / 0.1 | |
2174 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
2175 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2176 | if (tquality<squality[bLayer]) { |
69b55c55 | 2177 | bseed[bLayer] = tseed; |
4551ea7c | 2178 | } |
69b55c55 | 2179 | } |
4551ea7c | 2180 | |
2181 | } // Loop: jLayer | |
2182 | ||
2183 | chi2 = AliTRDseed::FitRiemanTilt(bseed,kTRUE); | |
2184 | ||
2185 | } // Loop: iter | |
2186 | ||
2187 | nclusters = 0; | |
2188 | nlayers = 0; | |
2189 | findable = 0; | |
2190 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2191 | if (TMath::Abs(cseed[iLayer].GetYref(0) / cseed[iLayer].GetX0()) < 0.15) { |
69b55c55 | 2192 | findable++; |
4551ea7c | 2193 | } |
2194 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2195 | nclusters += cseed[iLayer].GetN2(); |
69b55c55 | 2196 | nlayers++; |
2197 | } | |
2198 | } | |
4551ea7c | 2199 | if (nlayers < 3) { |
2200 | continue; | |
2201 | } | |
69b55c55 | 2202 | rieman.Reset(); |
4551ea7c | 2203 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
2204 | if (cseed[iLayer].IsOK()) { | |
2205 | rieman.AddPoint(xcl[iLayer] | |
ca1e1e5b | 2206 | ,cseed[iLayer].GetYfitR(0) |
2207 | ,cseed[iLayer].GetZProb() | |
4551ea7c | 2208 | ,1 |
2209 | ,10); | |
2210 | } | |
69b55c55 | 2211 | } |
2212 | rieman.Update(); | |
4551ea7c | 2213 | |
2214 | chi2RF = 0.0; | |
2215 | chi2ZF = 0.0; | |
2216 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2217 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2218 | cseed[iLayer].SetYref(0,rieman.GetYat(xcl[iLayer])); |
2219 | chi2RF += (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)) | |
2220 | * (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)); | |
2221 | cseed[iLayer].SetYref(1,rieman.GetDYat(xcl[iLayer])); | |
2222 | cseed[iLayer].SetZref(0,rieman.GetZat(xcl[iLayer])); | |
2223 | chi2ZF += (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()) | |
2224 | * (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()); | |
2225 | cseed[iLayer].SetZref(1,rieman.GetDZat(xcl[iLayer])); | |
69b55c55 | 2226 | } |
2227 | } | |
4551ea7c | 2228 | chi2RF /= TMath::Max((nlayers - 3.0),1.0); |
2229 | chi2ZF /= TMath::Max((nlayers - 3.0),1.0); | |
2230 | curv = rieman.GetC(); | |
2231 | ||
2232 | Double_t xref2 = (xcl[2] + xcl[3]) * 0.5; // Middle of the chamber | |
2233 | Double_t dzmf = rieman.GetDZat(xref2); | |
2234 | Double_t zmf = rieman.GetZat(xref2); | |
69b55c55 | 2235 | |
69b55c55 | 2236 | // |
4551ea7c | 2237 | // Fit hyperplane |
69b55c55 | 2238 | // |
4551ea7c | 2239 | Int_t npointsT = 0; |
69b55c55 | 2240 | fitterTC.ClearPoints(); |
2241 | fitterT2.ClearPoints(); | |
2242 | rieman2.Reset(); | |
4551ea7c | 2243 | |
2244 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2245 | ||
2246 | if (!cseed[iLayer].IsOK()) { | |
2247 | continue; | |
2248 | } | |
2249 | ||
2250 | for (Int_t itime = 0; itime < 25; itime++) { | |
2251 | ||
ca1e1e5b | 2252 | if (!cseed[iLayer].IsUsable(itime)) { |
4551ea7c | 2253 | continue; |
2254 | } | |
2255 | // X relative to the middle chamber | |
ca1e1e5b | 2256 | Double_t x = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0() - xref2; |
2257 | Double_t y = cseed[iLayer].GetY(itime); | |
2258 | Double_t z = cseed[iLayer].GetZ(itime); | |
69b55c55 | 2259 | // ExB correction to the correction |
4551ea7c | 2260 | // Tilted rieman |
69b55c55 | 2261 | Double_t uvt[6]; |
4551ea7c | 2262 | // Global x |
ca1e1e5b | 2263 | Double_t x2 = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0(); |
4551ea7c | 2264 | Double_t t = 1.0 / (x2*x2 + y*y); |
2265 | uvt[1] = t; // t | |
2266 | uvt[0] = 2.0 * x2 * uvt[1]; // u | |
2267 | uvt[2] = 2.0 * hL[iLayer] * uvt[1]; | |
2268 | uvt[3] = 2.0 * hL[iLayer] * x * uvt[1]; | |
2269 | uvt[4] = 2.0 * (y + hL[iLayer]*z) * uvt[1]; | |
2270 | Double_t error = 2.0 * 0.2 * uvt[1]; | |
69b55c55 | 2271 | fitterT2.AddPoint(uvt,uvt[4],error); |
4551ea7c | 2272 | |
69b55c55 | 2273 | // |
4551ea7c | 2274 | // Constrained rieman |
69b55c55 | 2275 | // |
ca1e1e5b | 2276 | z = cseed[iLayer].GetZ(itime); |
4551ea7c | 2277 | uvt[0] = 2.0 * x2 * t; // u |
2278 | uvt[1] = 2.0 * hL[iLayer] * x2 * uvt[1]; | |
2279 | uvt[2] = 2.0 * (y + hL[iLayer] * (z - GetZ())) * t; | |
69b55c55 | 2280 | fitterTC.AddPoint(uvt,uvt[2],error); |
69b55c55 | 2281 | rieman2.AddPoint(x2,y,z,1,10); |
2282 | npointsT++; | |
4551ea7c | 2283 | |
69b55c55 | 2284 | } |
4551ea7c | 2285 | |
2286 | } // Loop: iLayer | |
2287 | ||
69b55c55 | 2288 | rieman2.Update(); |
2289 | fitterTC.Eval(); | |
2290 | fitterT2.Eval(); | |
2291 | Double_t rpolz0 = fitterT2.GetParameter(3); | |
2292 | Double_t rpolz1 = fitterT2.GetParameter(4); | |
4551ea7c | 2293 | |
69b55c55 | 2294 | // |
4551ea7c | 2295 | // Linear fitter - not possible to make boundaries |
2296 | // Do not accept non possible z and dzdx combinations | |
69b55c55 | 2297 | // |
4551ea7c | 2298 | Bool_t acceptablez = kTRUE; |
2299 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2300 | if (cseed[iLayer].IsOK()) { | |
2301 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2302 | if (TMath::Abs(cseed[iLayer].GetZProb() - zT2) > padlength[iLayer] * 0.5 + 1.0) { |
69b55c55 | 2303 | acceptablez = kFALSE; |
4551ea7c | 2304 | } |
69b55c55 | 2305 | } |
2306 | } | |
4551ea7c | 2307 | if (!acceptablez) { |
69b55c55 | 2308 | fitterT2.FixParameter(3,zmf); |
2309 | fitterT2.FixParameter(4,dzmf); | |
2310 | fitterT2.Eval(); | |
2311 | fitterT2.ReleaseParameter(3); | |
2312 | fitterT2.ReleaseParameter(4); | |
2313 | rpolz0 = fitterT2.GetParameter(3); | |
2314 | rpolz1 = fitterT2.GetParameter(4); | |
2315 | } | |
4551ea7c | 2316 | |
2317 | Double_t chi2TR = fitterT2.GetChisquare() / Float_t(npointsT); | |
2318 | Double_t chi2TC = fitterTC.GetChisquare() / Float_t(npointsT); | |
69b55c55 | 2319 | Double_t polz1c = fitterTC.GetParameter(2); |
4551ea7c | 2320 | Double_t polz0c = polz1c * xref2; |
6c94f330 | 2321 | Double_t aC = fitterTC.GetParameter(0); |
2322 | Double_t bC = fitterTC.GetParameter(1); | |
4551ea7c | 2323 | Double_t cC = aC / TMath::Sqrt(bC * bC + 1.0); // Curvature |
6c94f330 | 2324 | Double_t aR = fitterT2.GetParameter(0); |
2325 | Double_t bR = fitterT2.GetParameter(1); | |
2326 | Double_t dR = fitterT2.GetParameter(2); | |
4551ea7c | 2327 | Double_t cR = 1.0 + bR*bR - dR*aR; |
2328 | Double_t dca = 0.0; | |
2329 | if (cR > 0.0) { | |
2330 | dca = -dR / (TMath::Sqrt(1.0 + bR*bR - dR*aR) + TMath::Sqrt(1.0 + bR*bR)); | |
2331 | cR = aR / TMath::Sqrt(cR); | |
69b55c55 | 2332 | } |
4551ea7c | 2333 | |
2334 | Double_t chi2ZT2 = 0.0; | |
2335 | Double_t chi2ZTC = 0.0; | |
2336 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2337 | if (cseed[iLayer].IsOK()) { | |
2338 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
2339 | Double_t zTC = polz0c + polz1c * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2340 | chi2ZT2 += TMath::Abs(cseed[iLayer].GetMeanz() - zT2); |
2341 | chi2ZTC += TMath::Abs(cseed[iLayer].GetMeanz() - zTC); | |
69b55c55 | 2342 | } |
2343 | } | |
4551ea7c | 2344 | chi2ZT2 /= TMath::Max((nlayers - 3.0),1.0); |
2345 | chi2ZTC /= TMath::Max((nlayers - 3.0),1.0); | |
2346 | ||
2347 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); | |
2348 | Float_t sumdaf = 0.0; | |
2349 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2350 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2351 | sumdaf += TMath::Abs((cseed[iLayer].GetYfit(1) - cseed[iLayer].GetYref(1)) |
2352 | / cseed[iLayer].GetSigmaY2()); | |
4551ea7c | 2353 | } |
2354 | } | |
2355 | sumdaf /= Float_t (nlayers - 2.0); | |
2356 | ||
69b55c55 | 2357 | // |
4551ea7c | 2358 | // Likelihoods for full track |
69b55c55 | 2359 | // |
4551ea7c | 2360 | Double_t likezf = TMath::Exp(-chi2ZF * 0.14); |
2361 | Double_t likechi2C = TMath::Exp(-chi2TC * 0.677); | |
2362 | Double_t likechi2TR = TMath::Exp(-chi2TR * 0.78); | |
2363 | Double_t likeaf = TMath::Exp(-sumdaf * 3.23); | |
2364 | seedquality2[registered] = likezf * likechi2TR * likeaf; | |
33744e5d | 2365 | |
4551ea7c | 2366 | // Still needed ???? |
69b55c55 | 2367 | // Bool_t isGold = kFALSE; |
2368 | // | |
6c94f330 | 2369 | // if (nlayers == 6 && TMath::Log(0.000000001+seedquality2[index])<-5.) isGold =kTRUE; // gold |
2370 | // if (nlayers == findable && TMath::Log(0.000000001+seedquality2[index])<-4.) isGold =kTRUE; // gold | |
69b55c55 | 2371 | // if (isGold &&nusedf<10){ |
2372 | // for (Int_t jLayer=0;jLayer<6;jLayer++){ | |
6c94f330 | 2373 | // if ( seed[index][jLayer].IsOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1) |
69b55c55 | 2374 | // seed[index][jLayer].UseClusters(); //sign gold |
2375 | // } | |
2376 | // } | |
4551ea7c | 2377 | |
2378 | Int_t index0 = 0; | |
2379 | if (!cseed[0].IsOK()) { | |
69b55c55 | 2380 | index0 = 1; |
4551ea7c | 2381 | if (!cseed[1].IsOK()) { |
2382 | index0 = 2; | |
2383 | } | |
69b55c55 | 2384 | } |
ca1e1e5b | 2385 | seedparams[registered][0] = cseed[index0].GetX0(); |
2386 | seedparams[registered][1] = cseed[index0].GetYref(0); | |
2387 | seedparams[registered][2] = cseed[index0].GetZref(0); | |
c6f438c0 | 2388 | seedparams[registered][5] = cR; |
ca1e1e5b | 2389 | seedparams[registered][3] = cseed[index0].GetX0() * cR - TMath::Sin(TMath::ATan(cseed[0].GetYref(1))); |
2390 | seedparams[registered][4] = cseed[index0].GetZref(1) | |
2391 | / TMath::Sqrt(1.0 + cseed[index0].GetYref(1) * cseed[index0].GetYref(1)); | |
69b55c55 | 2392 | seedparams[registered][6] = ns; |
4551ea7c | 2393 | |
2394 | Int_t labels[12]; | |
2395 | Int_t outlab[24]; | |
2396 | Int_t nlab = 0; | |
2397 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2398 | if (!cseed[iLayer].IsOK()) { | |
2399 | continue; | |
2400 | } | |
ca1e1e5b | 2401 | if (cseed[iLayer].GetLabels(0) >= 0) { |
2402 | labels[nlab] = cseed[iLayer].GetLabels(0); | |
69b55c55 | 2403 | nlab++; |
2404 | } | |
ca1e1e5b | 2405 | if (cseed[iLayer].GetLabels(1) >= 0) { |
2406 | labels[nlab] = cseed[iLayer].GetLabels(1); | |
69b55c55 | 2407 | nlab++; |
4551ea7c | 2408 | } |
69b55c55 | 2409 | } |
2410 | Freq(nlab,labels,outlab,kFALSE); | |
4551ea7c | 2411 | Int_t label = outlab[0]; |
2412 | Int_t frequency = outlab[1]; | |
2413 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2414 | cseed[iLayer].SetFreq(frequency); |
2415 | cseed[iLayer].SetC(cR); | |
2416 | cseed[iLayer].SetCC(cC); | |
2417 | cseed[iLayer].SetChi2(chi2TR); | |
2418 | cseed[iLayer].SetChi2Z(chi2ZF); | |
69b55c55 | 2419 | } |
33744e5d | 2420 | |
2421 | // Debugging print | |
4551ea7c | 2422 | if (1 || (!isFake)) { |
69b55c55 | 2423 | Float_t zvertex = GetZ(); |
4551ea7c | 2424 | TTreeSRedirector &cstream = *fDebugStreamer; |
2425 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2426 | cstream << "Seeds1" | |
2427 | << "isFake=" << isFake | |
2428 | << "Vertex=" << zvertex | |
2429 | << "Rieman2.=" << &rieman2 | |
2430 | << "Rieman.=" << &rieman | |
2431 | << "Xref=" << xref | |
2432 | << "X0=" << xcl[0] | |
2433 | << "X1=" << xcl[1] | |
2434 | << "X2=" << xcl[2] | |
2435 | << "X3=" << xcl[3] | |
2436 | << "X4=" << xcl[4] | |
2437 | << "X5=" << xcl[5] | |
2438 | << "Chi2R=" << chi2R | |
2439 | << "Chi2Z=" << chi2Z | |
2440 | << "Chi2RF=" << chi2RF // Chi2 of trackletes on full track | |
2441 | << "Chi2ZF=" << chi2ZF // Chi2 z on tracklets on full track | |
2442 | << "Chi2ZT2=" << chi2ZT2 // Chi2 z on tracklets on full track - rieman tilt | |
2443 | << "Chi2ZTC=" << chi2ZTC // Chi2 z on tracklets on full track - rieman tilt const | |
2444 | << "Chi2TR=" << chi2TR // Chi2 without vertex constrain | |
2445 | << "Chi2TC=" << chi2TC // Chi2 with vertex constrain | |
2446 | << "C=" << curv // Non constrained - no tilt correction | |
2447 | << "DR=" << dR // DR parameter - tilt correction | |
2448 | << "DCA=" << dca // DCA - tilt correction | |
2449 | << "CR=" << cR // Non constrained curvature - tilt correction | |
2450 | << "CC=" << cC // Constrained curvature | |
2451 | << "Polz0=" << polz0c | |
2452 | << "Polz1=" << polz1c | |
2453 | << "RPolz0=" << rpolz0 | |
2454 | << "RPolz1=" << rpolz1 | |
2455 | << "Ncl=" << nclusters | |
2456 | << "Nlayers=" << nlayers | |
2457 | << "NUsedS=" << nusedCl | |
2458 | << "NUsed=" << nusedf | |
2459 | << "Findable=" << findable | |
2460 | << "Like=" << like | |
2461 | << "LikePrim=" << likePrim | |
2462 | << "Likechi2C=" << likechi2C | |
2463 | << "Likechi2TR=" << likechi2TR | |
2464 | << "Likezf=" << likezf | |
2465 | << "LikeF=" << seedquality2[registered] | |
2466 | << "S0.=" << &cseed[0] | |
2467 | << "S1.=" << &cseed[1] | |
2468 | << "S2.=" << &cseed[2] | |
2469 | << "S3.=" << &cseed[3] | |
2470 | << "S4.=" << &cseed[4] | |
2471 | << "S5.=" << &cseed[5] | |
2472 | << "SB0.=" << &seedb[0] | |
2473 | << "SB1.=" << &seedb[1] | |
2474 | << "SB2.=" << &seedb[2] | |
2475 | << "SB3.=" << &seedb[3] | |
2476 | << "SB4.=" << &seedb[4] | |
2477 | << "SB5.=" << &seedb[5] | |
2478 | << "Label=" << label | |
2479 | << "Freq=" << frequency | |
2480 | << "sLayer=" << sLayer | |
2481 | << "\n"; | |
2482 | } | |
69b55c55 | 2483 | } |
4551ea7c | 2484 | |
2485 | if (registered<kMaxSeed - 1) { | |
69b55c55 | 2486 | registered++; |
2487 | cseed = seed[registered]; | |
2488 | } | |
4551ea7c | 2489 | |
2490 | } // End of loop over layer 1 | |
2491 | ||
2492 | } // End of loop over layer 0 | |
2493 | ||
2494 | } // End of loop over layer 3 | |
2495 | ||
2496 | } // End of loop over seeding time bins | |
2497 | ||
69b55c55 | 2498 | // |
4551ea7c | 2499 | // Choose best |
69b55c55 | 2500 | // |
4551ea7c | 2501 | |
69b55c55 | 2502 | TMath::Sort(registered,seedquality2,sort,kTRUE); |
c6f438c0 | 2503 | Bool_t signedseed[kMaxSeed]; |
4551ea7c | 2504 | for (Int_t i = 0; i < registered; i++) { |
2505 | signedseed[i] = kFALSE; | |
69b55c55 | 2506 | } |
4551ea7c | 2507 | |
2508 | for (Int_t iter = 0; iter < 5; iter++) { | |
2509 | ||
2510 | for (Int_t iseed = 0; iseed < registered; iseed++) { | |
2511 | ||
69b55c55 | 2512 | Int_t index = sort[iseed]; |
4551ea7c | 2513 | if (signedseed[index]) { |
2514 | continue; | |
2515 | } | |
69b55c55 | 2516 | Int_t labelsall[1000]; |
4551ea7c | 2517 | Int_t nlabelsall = 0; |
2518 | Int_t naccepted = 0;; | |
2519 | Int_t sLayer = seedlayer[index]; | |
2520 | Int_t ncl = 0; | |
2521 | Int_t nused = 0; | |
2522 | Int_t nlayers = 0; | |
69b55c55 | 2523 | Int_t findable = 0; |
4551ea7c | 2524 | |
2525 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2526 | ||
ca1e1e5b | 2527 | if (TMath::Abs(seed[index][jLayer].GetYref(0) / xcl[jLayer]) < 0.15) { |
69b55c55 | 2528 | findable++; |
4551ea7c | 2529 | } |
2530 | if (seed[index][jLayer].IsOK()) { | |
69b55c55 | 2531 | seed[index][jLayer].UpdateUsed(); |
ca1e1e5b | 2532 | ncl +=seed[index][jLayer].GetN2(); |
2533 | nused +=seed[index][jLayer].GetNUsed(); | |
69b55c55 | 2534 | nlayers++; |
4551ea7c | 2535 | // Cooking label |
2536 | for (Int_t itime = 0; itime < 25; itime++) { | |
ca1e1e5b | 2537 | if (seed[index][jLayer].IsUsable(itime)) { |
69b55c55 | 2538 | naccepted++; |
4551ea7c | 2539 | for (Int_t ilab = 0; ilab < 3; ilab++) { |
ca1e1e5b | 2540 | Int_t tindex = seed[index][jLayer].GetClusters(itime)->GetLabel(ilab); |
4551ea7c | 2541 | if (tindex >= 0) { |
69b55c55 | 2542 | labelsall[nlabelsall] = tindex; |
2543 | nlabelsall++; | |
2544 | } | |
2545 | } | |
2546 | } | |
2547 | } | |
2548 | } | |
4551ea7c | 2549 | |
69b55c55 | 2550 | } |
4551ea7c | 2551 | |
2552 | if (nused > 30) { | |
2553 | continue; | |
69b55c55 | 2554 | } |
4551ea7c | 2555 | |
2556 | if (iter == 0) { | |
2557 | if (nlayers < 6) { | |
2558 | continue; | |
2559 | } | |
2560 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2561 | continue; // Gold | |
2562 | } | |
7ad19338 | 2563 | } |
4551ea7c | 2564 | |
2565 | if (iter == 1) { | |
2566 | if (nlayers < findable) { | |
2567 | continue; | |
2568 | } | |
2569 | if (TMath::Log(0.000000001+seedquality2[index]) < -4.0) { | |
2570 | continue; | |
2571 | } | |
2572 | } | |
2573 | ||
2574 | if (iter == 2) { | |
2575 | if ((nlayers == findable) || | |
2576 | (nlayers == 6)) { | |
2577 | continue; | |
2578 | } | |
2579 | if (TMath::Log(0.000000001+seedquality2[index]) < -6.0) { | |
2580 | continue; | |
2581 | } | |
69b55c55 | 2582 | } |
4551ea7c | 2583 | |
2584 | if (iter == 3) { | |
2585 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2586 | continue; | |
2587 | } | |
69b55c55 | 2588 | } |
4551ea7c | 2589 | |
2590 | if (iter == 4) { | |
2591 | if (TMath::Log(0.000000001+seedquality2[index]) - nused/(nlayers-3.0) < -15.0) { | |
2592 | continue; | |
2593 | } | |
69b55c55 | 2594 | } |
4551ea7c | 2595 | |
69b55c55 | 2596 | signedseed[index] = kTRUE; |
4551ea7c | 2597 | |
2598 | Int_t labels[1000]; | |
2599 | Int_t outlab[1000]; | |
2600 | Int_t nlab = 0; | |
2601 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2602 | if (seed[index][iLayer].IsOK()) { | |
ca1e1e5b | 2603 | if (seed[index][iLayer].GetLabels(0) >= 0) { |
2604 | labels[nlab] = seed[index][iLayer].GetLabels(0); | |
69b55c55 | 2605 | nlab++; |
2606 | } | |
ca1e1e5b | 2607 | if (seed[index][iLayer].GetLabels(1) >= 0) { |
2608 | labels[nlab] = seed[index][iLayer].GetLabels(1); | |
69b55c55 | 2609 | nlab++; |
4551ea7c | 2610 | } |
2611 | } | |
7ad19338 | 2612 | } |
69b55c55 | 2613 | Freq(nlab,labels,outlab,kFALSE); |
4551ea7c | 2614 | Int_t label = outlab[0]; |
2615 | Int_t frequency = outlab[1]; | |
69b55c55 | 2616 | Freq(nlabelsall,labelsall,outlab,kFALSE); |
4551ea7c | 2617 | Int_t label1 = outlab[0]; |
2618 | Int_t label2 = outlab[2]; | |
2619 | Float_t fakeratio = (naccepted - outlab[1]) / Float_t(naccepted); | |
2620 | Float_t ratio = Float_t(nused) / Float_t(ncl); | |
2621 | if (ratio < 0.25) { | |
2622 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2623 | if ((seed[index][jLayer].IsOK()) && | |
ca1e1e5b | 2624 | (TMath::Abs(seed[index][jLayer].GetYfit(1) - seed[index][jLayer].GetYfit(1)) < 0.2)) { |
4551ea7c | 2625 | seed[index][jLayer].UseClusters(); // Sign gold |
2626 | } | |
69b55c55 | 2627 | } |
7ad19338 | 2628 | } |
4551ea7c | 2629 | |
31fd97b2 | 2630 | Int_t eventNrInFile = esd->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number. |
4551ea7c | 2631 | TTreeSRedirector &cstream = *fDebugStreamer; |
2632 | ||
69b55c55 | 2633 | // |
4551ea7c | 2634 | // Register seed |
69b55c55 | 2635 | // |
4551ea7c | 2636 | AliTRDtrack *track = RegisterSeed(seed[index],seedparams[index]); |
2637 | AliTRDtrack dummy; | |
2638 | if (!track) { | |
2639 | track = &dummy; | |
2640 | } | |
2641 | else { | |
69b55c55 | 2642 | AliESDtrack esdtrack; |
4551ea7c | 2643 | esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout); |
69b55c55 | 2644 | esdtrack.SetLabel(label); |
2645 | esd->AddTrack(&esdtrack); | |
4551ea7c | 2646 | TTreeSRedirector &cstream = *fDebugStreamer; |
2647 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2648 | cstream << "Tracks" | |
31fd97b2 | 2649 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 2650 | << "ESD.=" << &esdtrack |
2651 | << "trd.=" << track | |
2652 | << "trdback.=" << track | |
2653 | << "\n"; | |
2654 | } | |
7ad19338 | 2655 | } |
4551ea7c | 2656 | |
2657 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2658 | cstream << "Seeds2" | |
2659 | << "Iter=" << iter | |
2660 | << "Track.=" << track | |
2661 | << "Like=" << seedquality[index] | |
2662 | << "LikeF=" << seedquality2[index] | |
2663 | << "S0.=" << &seed[index][0] | |
2664 | << "S1.=" << &seed[index][1] | |
2665 | << "S2.=" << &seed[index][2] | |
2666 | << "S3.=" << &seed[index][3] | |
2667 | << "S4.=" << &seed[index][4] | |
2668 | << "S5.=" << &seed[index][5] | |
2669 | << "Label=" << label | |
2670 | << "Label1=" << label1 | |
2671 | << "Label2=" << label2 | |
2672 | << "FakeRatio=" << fakeratio | |
2673 | << "Freq=" << frequency | |
2674 | << "Ncl=" << ncl | |
2675 | << "Nlayers=" << nlayers | |
2676 | << "Findable=" << findable | |
2677 | << "NUsed=" << nused | |
2678 | << "sLayer=" << sLayer | |
31fd97b2 | 2679 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 2680 | << "\n"; |
2681 | } | |
2682 | ||
2683 | } // Loop: iseed | |
2684 | ||
2685 | } // Loop: iter | |
2686 | ||
2687 | } // End of loop over sectors | |
75bd7f81 | 2688 | |
69b55c55 | 2689 | delete [] pseed; |
75bd7f81 | 2690 | |
69b55c55 | 2691 | } |
2692 | ||
5443e65e | 2693 | //_____________________________________________________________________________ |
4551ea7c | 2694 | Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const |
5443e65e | 2695 | { |
2696 | // | |
a819a5f7 | 2697 | // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0) |
2698 | // from the file. The names of the cluster tree and branches | |
2699 | // should match the ones used in AliTRDclusterizer::WriteClusters() | |
2700 | // | |
75bd7f81 | 2701 | |
4551ea7c | 2702 | Int_t nsize = Int_t(clusterTree->GetTotBytes() / (sizeof(AliTRDcluster))); |
6c94f330 | 2703 | TObjArray *clusterArray = new TObjArray(nsize+1000); |
5443e65e | 2704 | |
4551ea7c | 2705 | TBranch *branch = clusterTree->GetBranch("TRDcluster"); |
c630aafd | 2706 | if (!branch) { |
4551ea7c | 2707 | AliError("Can't get the branch !"); |
c630aafd | 2708 | return 1; |
2709 | } | |
029cd327 | 2710 | branch->SetAddress(&clusterArray); |
5443e65e | 2711 | |
a819a5f7 | 2712 | // Loop through all entries in the tree |
4551ea7c | 2713 | Int_t nEntries = (Int_t) clusterTree->GetEntries(); |
2714 | Int_t nbytes = 0; | |
a819a5f7 | 2715 | AliTRDcluster *c = 0; |
a819a5f7 | 2716 | for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) { |
2717 | ||
2718 | // Import the tree | |
4551ea7c | 2719 | nbytes += clusterTree->GetEvent(iEntry); |
5443e65e | 2720 | |
a819a5f7 | 2721 | // Get the number of points in the detector |
029cd327 | 2722 | Int_t nCluster = clusterArray->GetEntriesFast(); |
5443e65e | 2723 | |
a819a5f7 | 2724 | // Loop through all TRD digits |
2725 | for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) { | |
4551ea7c | 2726 | c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster); |
4f1c04d3 | 2727 | AliTRDcluster *co = c; |
a819a5f7 | 2728 | array->AddLast(co); |
4f1c04d3 | 2729 | clusterArray->RemoveAt(iCluster); |
a819a5f7 | 2730 | } |
4551ea7c | 2731 | |
a819a5f7 | 2732 | } |
2733 | ||
029cd327 | 2734 | delete clusterArray; |
5443e65e | 2735 | |
c630aafd | 2736 | return 0; |
75bd7f81 | 2737 | |
a819a5f7 | 2738 | } |
2739 | ||
75bd7f81 | 2740 | //_____________________________________________________________________________ |
4551ea7c | 2741 | Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint &p) const |
3551db50 | 2742 | { |
2743 | // | |
2744 | // Get track space point with index i | |
2745 | // Origin: C.Cheshkov | |
2746 | // | |
2747 | ||
4551ea7c | 2748 | AliTRDcluster *cl = (AliTRDcluster *) fClusters->UncheckedAt(index); |
2749 | Int_t idet = cl->GetDetector(); | |
2750 | Int_t isector = fGeom->GetSector(idet); | |
2751 | Int_t ichamber = fGeom->GetChamber(idet); | |
2752 | Int_t iplan = fGeom->GetPlane(idet); | |
3551db50 | 2753 | Double_t local[3]; |
4551ea7c | 2754 | local[0] = GetX(isector,iplan,cl->GetLocalTimeBin()); |
2755 | local[1] = cl->GetY(); | |
2756 | local[2] = cl->GetZ(); | |
3551db50 | 2757 | Double_t global[3]; |
2758 | fGeom->RotateBack(idet,local,global); | |
2759 | p.SetXYZ(global[0],global[1],global[2]); | |
2760 | AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; | |
2761 | switch (iplan) { | |
2762 | case 0: | |
2763 | iLayer = AliAlignObj::kTRD1; | |
2764 | break; | |
2765 | case 1: | |
2766 | iLayer = AliAlignObj::kTRD2; | |
2767 | break; | |
2768 | case 2: | |
2769 | iLayer = AliAlignObj::kTRD3; | |
2770 | break; | |
2771 | case 3: | |
2772 | iLayer = AliAlignObj::kTRD4; | |
2773 | break; | |
2774 | case 4: | |
2775 | iLayer = AliAlignObj::kTRD5; | |
2776 | break; | |
2777 | case 5: | |
2778 | iLayer = AliAlignObj::kTRD6; | |
2779 | break; | |
2780 | }; | |
4551ea7c | 2781 | Int_t modId = isector * fGeom->Ncham() + ichamber; |
3551db50 | 2782 | UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); |
2783 | p.SetVolumeID(volid); | |
2784 | ||
2785 | return kTRUE; | |
2786 | ||
2787 | } | |
2788 | ||
75bd7f81 | 2789 | //_____________________________________________________________________________ |
4551ea7c | 2790 | void AliTRDtracker::CookLabel(AliKalmanTrack *pt, Float_t wrong) const |
029cd327 | 2791 | { |
2792 | // | |
2793 | // This cooks a label. Mmmmh, smells good... | |
2794 | // | |
46d29e70 | 2795 | |
4551ea7c | 2796 | Int_t label = 123456789; |
2797 | Int_t index; | |
2798 | Int_t i; | |
2799 | Int_t j; | |
2800 | Int_t ncl = pt->GetNumberOfClusters(); | |
2801 | ||
2802 | const Int_t kRange = fTrSec[0]->GetOuterTimeBin() + 1; | |
5443e65e | 2803 | |
029cd327 | 2804 | Bool_t labelAdded; |
46d29e70 | 2805 | |
6c94f330 | 2806 | Int_t **s = new Int_t* [kRange]; |
4551ea7c | 2807 | for (i = 0; i < kRange; i++) { |
d1b06c24 | 2808 | s[i] = new Int_t[2]; |
2809 | } | |
4551ea7c | 2810 | for (i = 0; i < kRange; i++) { |
2811 | s[i][0] = -1; | |
2812 | s[i][1] = 0; | |
46d29e70 | 2813 | } |
2814 | ||
4551ea7c | 2815 | Int_t t0; |
2816 | Int_t t1; | |
2817 | Int_t t2; | |
2818 | ||
2819 | for (i = 0; i < ncl; i++) { | |
2820 | index = pt->GetClusterIndex(i); | |
2821 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
6c94f330 | 2822 | t0=c->GetLabel(0); |
2823 | t1=c->GetLabel(1); | |
2824 | t2=c->GetLabel(2); | |
46d29e70 | 2825 | } |
2826 | ||
4551ea7c | 2827 | for (i = 0; i < ncl; i++) { |
2828 | index = pt->GetClusterIndex(i); | |
2829 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
2830 | for (Int_t k = 0; k < 3; k++) { | |
2831 | label = c->GetLabel(k); | |
2832 | labelAdded = kFALSE; | |
2833 | j = 0; | |
46d29e70 | 2834 | if (label >= 0) { |
4551ea7c | 2835 | while ((!labelAdded) && (j < kRange)) { |
2836 | if ((s[j][0] == label) || | |
2837 | (s[j][1] == 0)) { | |
2838 | s[j][0] = label; | |
2839 | s[j][1] = s[j][1] + 1; | |
2840 | labelAdded = kTRUE; | |
a9814c09 | 2841 | } |
2842 | j++; | |
2843 | } | |
46d29e70 | 2844 | } |
2845 | } | |
2846 | } | |
2847 | ||
4551ea7c | 2848 | Int_t max = 0; |
6c94f330 | 2849 | label = -123456789; |
46d29e70 | 2850 | |
4551ea7c | 2851 | for (i = 0; i < kRange; i++) { |
2852 | if (s[i][1] > max) { | |
2853 | max = s[i][1]; | |
2854 | label = s[i][0]; | |
46d29e70 | 2855 | } |
2856 | } | |
5443e65e | 2857 | |
4551ea7c | 2858 | for (i = 0; i < kRange; i++) { |
6c94f330 | 2859 | delete []s[i]; |
5443e65e | 2860 | } |
2861 | ||
6c94f330 | 2862 | delete []s; |
5443e65e | 2863 | |
4551ea7c | 2864 | if ((1.0 - Float_t(max)/ncl) > wrong) { |
2865 | label = -label; | |
2866 | } | |
5443e65e | 2867 | |
2868 | pt->SetLabel(label); | |
2869 | ||
46d29e70 | 2870 | } |
2871 | ||
75bd7f81 | 2872 | //_____________________________________________________________________________ |
4551ea7c | 2873 | void AliTRDtracker::UseClusters(const AliKalmanTrack *t, Int_t from) const |
029cd327 | 2874 | { |
2875 | // | |
2876 | // Use clusters, but don't abuse them! | |
2877 | // | |
75bd7f81 | 2878 | |
4551ea7c | 2879 | const Float_t kmaxchi2 = 18; |
2880 | const Float_t kmincl = 10; | |
2881 | ||
2882 | AliTRDtrack *track = (AliTRDtrack *) t; | |
2883 | ||
2884 | Int_t ncl = t->GetNumberOfClusters(); | |
2885 | for (Int_t i = from; i < ncl; i++) { | |
2886 | Int_t index = t->GetClusterIndex(i); | |
2887 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
69b55c55 | 2888 | Int_t iplane = fGeom->GetPlane(c->GetDetector()); |
27eaf44b | 2889 | if (track->GetTracklets(iplane).GetChi2() > kmaxchi2) { |
4551ea7c | 2890 | continue; |
2891 | } | |
27eaf44b | 2892 | if (track->GetTracklets(iplane).GetN() < kmincl) { |
4551ea7c | 2893 | continue; |
2894 | } | |
2895 | if (!(c->IsUsed())) { | |
2896 | c->Use(); | |
2897 | } | |
5443e65e | 2898 | } |
5443e65e | 2899 | |
75bd7f81 | 2900 | } |
5443e65e | 2901 | |
75bd7f81 | 2902 | //_____________________________________________________________________________ |
029cd327 | 2903 | Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const |
5443e65e | 2904 | { |
75bd7f81 | 2905 | // |
5443e65e | 2906 | // Parametrised "expected" error of the cluster reconstruction in Y |
75bd7f81 | 2907 | // |
5443e65e | 2908 | |
2909 | Double_t s = 0.08 * 0.08; | |
2910 | return s; | |
75bd7f81 | 2911 | |
5443e65e | 2912 | } |
2913 | ||
75bd7f81 | 2914 | //_____________________________________________________________________________ |
029cd327 | 2915 | Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t , Double_t ) const |
0a29d0f1 | 2916 | { |
75bd7f81 | 2917 | // |
5443e65e | 2918 | // Parametrised "expected" error of the cluster reconstruction in Z |
75bd7f81 | 2919 | // |
5443e65e | 2920 | |
4551ea7c | 2921 | Double_t s = 9.0 * 9.0 / 12.0; |
5443e65e | 2922 | return s; |
75bd7f81 | 2923 | |
5443e65e | 2924 | } |
2925 | ||
75bd7f81 | 2926 | //_____________________________________________________________________________ |
029cd327 | 2927 | Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const |
5443e65e | 2928 | { |
2929 | // | |
029cd327 | 2930 | // Returns radial position which corresponds to time bin <localTB> |
5443e65e | 2931 | // in tracking sector <sector> and plane <plane> |
2932 | // | |
2933 | ||
6c94f330 | 2934 | Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, localTB); |
4551ea7c | 2935 | Int_t pl = fTrSec[sector]->GetLayerNumber(index); |
2936 | ||
5443e65e | 2937 | return fTrSec[sector]->GetLayer(pl)->GetX(); |
2938 | ||
2939 | } | |
2940 | ||
75bd7f81 | 2941 | //_____________________________________________________________________________ |
2942 | AliTRDtracker::AliTRDpropagationLayer | |
2943 | ::AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho | |
2944 | , Double_t radLength, Int_t tbIndex, Int_t plane) | |
ad670fba | 2945 | :fN(0) |
2946 | ,fSec(0) | |
2947 | ,fClusters(NULL) | |
2948 | ,fIndex(NULL) | |
2949 | ,fX(x) | |
2950 | ,fdX(dx) | |
2951 | ,fRho(rho) | |
2952 | ,fX0(radLength) | |
2953 | ,fTimeBinIndex(tbIndex) | |
2954 | ,fPlane(plane) | |
2955 | ,fYmax(0) | |
2956 | ,fYmaxSensitive(0) | |
2957 | ,fHole(kFALSE) | |
2958 | ,fHoleZc(0) | |
2959 | ,fHoleZmax(0) | |
2960 | ,fHoleYc(0) | |
2961 | ,fHoleYmax(0) | |
2962 | ,fHoleRho(0) | |
2963 | ,fHoleX0(0) | |
5443e65e | 2964 | { |
0a29d0f1 | 2965 | // |
5443e65e | 2966 | // AliTRDpropagationLayer constructor |
0a29d0f1 | 2967 | // |
46d29e70 | 2968 | |
ad670fba | 2969 | for (Int_t i = 0; i < (Int_t) kZones; i++) { |
2970 | fZc[i] = 0; | |
2971 | fZmax[i] = 0; | |
a819a5f7 | 2972 | } |
5443e65e | 2973 | |
ad670fba | 2974 | if (fTimeBinIndex >= 0) { |
029cd327 | 2975 | fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin]; |
ad670fba | 2976 | fIndex = new UInt_t[kMaxClusterPerTimeBin]; |
a819a5f7 | 2977 | } |
46d29e70 | 2978 | |
ad670fba | 2979 | for (Int_t i = 0; i < 5; i++) { |
2980 | fIsHole[i] = kFALSE; | |
2981 | } | |
5443e65e | 2982 | |
2983 | } | |
2984 | ||
75bd7f81 | 2985 | //_____________________________________________________________________________ |
2986 | void AliTRDtracker::AliTRDpropagationLayer | |
2987 | ::SetHole(Double_t Zmax, Double_t Ymax, Double_t rho | |
2988 | , Double_t radLength, Double_t Yc, Double_t Zc) | |
5443e65e | 2989 | { |
2990 | // | |
2991 | // Sets hole in the layer | |
2992 | // | |
75bd7f81 | 2993 | |
4551ea7c | 2994 | fHole = kTRUE; |
2995 | fHoleZc = Zc; | |
5443e65e | 2996 | fHoleZmax = Zmax; |
4551ea7c | 2997 | fHoleYc = Yc; |
5443e65e | 2998 | fHoleYmax = Ymax; |
4551ea7c | 2999 | fHoleRho = rho; |
3000 | fHoleX0 = radLength; | |
75bd7f81 | 3001 | |
5443e65e | 3002 | } |
46d29e70 | 3003 | |
75bd7f81 | 3004 | //_____________________________________________________________________________ |
3005 | AliTRDtracker::AliTRDtrackingSector | |
ad670fba | 3006 | ::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs) |
3007 | :fN(0) | |
3008 | ,fGeom(geo) | |
3009 | ,fGeomSector(gs) | |
5443e65e | 3010 | { |
3011 | // | |
3012 | // AliTRDtrackingSector Constructor | |
3013 | // | |
75bd7f81 | 3014 | |
7e448bcc | 3015 | AliTRDpadPlane *padPlane = 0; |
3016 | AliTRDpropagationLayer *ppl = 0; | |
a5cadd36 | 3017 | |
ad670fba | 3018 | // Get holes description from geometry |
3c625a9b | 3019 | Bool_t holes[AliTRDgeometry::kNcham]; |
ad670fba | 3020 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3c625a9b | 3021 | holes[icham] = fGeom->IsHole(0,icham,gs); |
3c625a9b | 3022 | } |
3c625a9b | 3023 | |
ad670fba | 3024 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { |
3025 | fTimeBinIndex[i] = -1; | |
3026 | } | |
5443e65e | 3027 | |
ad670fba | 3028 | Double_t x; |
3029 | Double_t dx; | |
3030 | Double_t rho; | |
3031 | Double_t radLength; | |
5443e65e | 3032 | |
ad670fba | 3033 | // Add layers for each of the planes |
3034 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
a305677e | 3035 | //Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region |
5443e65e | 3036 | |
ad670fba | 3037 | const Int_t kNchambers = AliTRDgeometry::Ncham(); |
a305677e | 3038 | Int_t tbIndex; |
ad670fba | 3039 | Double_t ymax = 0; |
3040 | Double_t ymaxsensitive = 0; | |
3041 | Double_t *zc = new Double_t[kNchambers]; | |
3042 | Double_t *zmax = new Double_t[kNchambers]; | |
3c625a9b | 3043 | Double_t *zmaxsensitive = new Double_t[kNchambers]; |
5443e65e | 3044 | |
ad670fba | 3045 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); |
3046 | if (!commonParam) { | |
030b4415 | 3047 | AliErrorGeneral("AliTRDtrackingSector::Ctor" |
3048 | ,"Could not get common parameters\n"); | |
3551db50 | 3049 | return; |
3050 | } | |
3051 | ||
ad670fba | 3052 | for (Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { |
3053 | ||
3054 | ymax = fGeom->GetChamberWidth(plane) / 2.0; | |
3055 | padPlane = commonParam->GetPadPlane(plane,0); | |
3056 | ymaxsensitive = (padPlane->GetColSize(1) * padPlane->GetNcols() - 4.0) / 2.0; | |
3057 | ||
3058 | for (Int_t ch = 0; ch < kNchambers; ch++) { | |
3059 | zmax[ch] = fGeom->GetChamberLength(plane,ch) / 2.0; | |
3060 | Float_t pad = padPlane->GetRowSize(1); | |
3061 | Float_t row0 = commonParam->GetRow0(plane,ch,0); | |
3062 | Int_t nPads = commonParam->GetRowMax(plane,ch,0); | |
3063 | zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0; | |
3064 | zc[ch] = -(pad * nPads) / 2.0 + row0; | |
5443e65e | 3065 | } |
3066 | ||
ad670fba | 3067 | dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) |
b43a3e17 | 3068 | / commonParam->GetSamplingFrequency(); |
ad670fba | 3069 | rho = 0.00295 * 0.85; //???? |
3070 | radLength = 11.0; | |
5443e65e | 3071 | |
3551db50 | 3072 | Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane); |
a305677e | 3073 | //Double_t xbottom = x0 - dxDrift; |
ad670fba | 3074 | //Double_t xtop = x0 + dxAmp; |
3075 | ||
59393e34 | 3076 | Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
ad670fba | 3077 | for (Int_t iTime = 0; iTime < nTimeBins; iTime++) { |
3078 | ||
3079 | Double_t xlayer = iTime * dx - dxAmp; | |
3080 | //if (xlayer<0) xlayer = dxAmp / 2.0; | |
59393e34 | 3081 | x = x0 - xlayer; |
ad670fba | 3082 | |
3083 | tbIndex = CookTimeBinIndex(plane,iTime); | |
3084 | ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex,plane); | |
3c625a9b | 3085 | ppl->SetYmax(ymax,ymaxsensitive); |
ad670fba | 3086 | ppl->SetZ(zc,zmax,zmaxsensitive); |
3c625a9b | 3087 | ppl->SetHoles(holes); |
59393e34 | 3088 | InsertLayer(ppl); |
ad670fba | 3089 | |
5443e65e | 3090 | } |
ad670fba | 3091 | |
5443e65e | 3092 | } |
3093 | ||
5443e65e | 3094 | MapTimeBinLayers(); |
ad670fba | 3095 | |
029cd327 | 3096 | delete [] zc; |
3097 | delete [] zmax; | |
4f1c04d3 | 3098 | delete [] zmaxsensitive; |
5443e65e | 3099 | |
3100 | } | |
3101 | ||
ad670fba | 3102 | //_____________________________________________________________________________ |
3103 | AliTRDtracker::AliTRDtrackingSector | |
3104 | ::AliTRDtrackingSector(const AliTRDtrackingSector &/*t*/) | |
3105 | :fN(0) | |
3106 | ,fGeom(0) | |
3107 | ,fGeomSector(0) | |
3108 | { | |
3109 | // | |
3110 | // Copy constructor | |
3111 | // | |
3112 | ||
3113 | } | |
3114 | ||
75bd7f81 | 3115 | //_____________________________________________________________________________ |
3116 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3117 | ::CookTimeBinIndex(Int_t plane, Int_t localTB) const | |
5443e65e | 3118 | { |
3119 | // | |
6c94f330 | 3120 | // depending on the digitization parameters calculates "global" |
029cd327 | 3121 | // time bin index for timebin <localTB> in plane <plane> |
5443e65e | 3122 | // |
59393e34 | 3123 | // |
75bd7f81 | 3124 | |
59393e34 | 3125 | Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
4551ea7c | 3126 | Int_t gtb = (plane+1) * tbPerPlane - localTB - 1; |
3127 | if (localTB < 0) { | |
3128 | return -1; | |
3129 | } | |
3130 | if (gtb < 0) { | |
3131 | return -1; | |
3132 | } | |
75bd7f81 | 3133 | |
5443e65e | 3134 | return gtb; |
5443e65e | 3135 | |
75bd7f81 | 3136 | } |
5443e65e | 3137 | |
75bd7f81 | 3138 | //_____________________________________________________________________________ |
3139 | void AliTRDtracker::AliTRDtrackingSector | |
3140 | ::MapTimeBinLayers() | |
5443e65e | 3141 | { |
3142 | // | |
3143 | // For all sensitive time bins sets corresponding layer index | |
3144 | // in the array fTimeBins | |
3145 | // | |
3146 | ||
3147 | Int_t index; | |
3148 | ||
4551ea7c | 3149 | for (Int_t i = 0; i < fN; i++) { |
3150 | ||
5443e65e | 3151 | index = fLayers[i]->GetTimeBinIndex(); |
6c94f330 | 3152 | |
4551ea7c | 3153 | if (index < 0) { |
3154 | continue; | |
3155 | } | |
3156 | if (index >= (Int_t) kMaxTimeBinIndex) { | |
3157 | //AliWarning(Form("Index %d exceeds allowed maximum of %d!\n" | |
3158 | // ,index,kMaxTimeBinIndex-1)); | |
5443e65e | 3159 | continue; |
3160 | } | |
4551ea7c | 3161 | |
5443e65e | 3162 | fTimeBinIndex[index] = i; |
4551ea7c | 3163 | |
5443e65e | 3164 | } |
5443e65e | 3165 | |
75bd7f81 | 3166 | } |
5443e65e | 3167 | |
75bd7f81 | 3168 | //_____________________________________________________________________________ |
3169 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3170 | ::GetLayerNumber(Double_t x) const | |
5443e65e | 3171 | { |
3172 | // | |
3173 | // Returns the number of time bin which in radial position is closest to <x> | |
3174 | // | |
3175 | ||
4551ea7c | 3176 | if (x >= fLayers[fN-1]->GetX()) { |
3177 | return fN - 1; | |
3178 | } | |
3179 | if (x <= fLayers[ 0]->GetX()) { | |
3180 | return 0; | |
3181 | } | |
3182 | ||
3183 | Int_t b = 0; | |
3184 | Int_t e = fN - 1; | |
3185 | Int_t m = (b + e) / 2; | |
ad670fba | 3186 | |
4551ea7c | 3187 | for ( ; b < e; m = (b + e) / 2) { |
3188 | if (x > fLayers[m]->GetX()) { | |
3189 | b = m + 1; | |
3190 | } | |
3191 | else { | |
3192 | e = m; | |
3193 | } | |
5443e65e | 3194 | } |
75bd7f81 | 3195 | |
4551ea7c | 3196 | if (TMath::Abs(x - fLayers[m]->GetX()) > TMath::Abs(x - fLayers[m+1]->GetX())) { |
3197 | return m + 1; | |
3198 | } | |
3199 | else { | |
3200 | return m; | |
3201 | } | |
5443e65e | 3202 | |
3203 | } | |
3204 | ||
75bd7f81 | 3205 | //_____________________________________________________________________________ |
3206 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3207 | ::GetInnerTimeBin() const | |
5443e65e | 3208 | { |
3209 | // | |
3210 | // Returns number of the innermost SENSITIVE propagation layer | |
3211 | // | |
3212 | ||
3213 | return GetLayerNumber(0); | |
5443e65e | 3214 | |
75bd7f81 | 3215 | } |
5443e65e | 3216 | |
75bd7f81 | 3217 | //_____________________________________________________________________________ |
3218 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3219 | ::GetOuterTimeBin() const | |
5443e65e | 3220 | { |
3221 | // | |
3222 | // Returns number of the outermost SENSITIVE time bin | |
3223 | // | |
3224 | ||
3225 | return GetLayerNumber(GetNumberOfTimeBins() - 1); | |
46d29e70 | 3226 | |
75bd7f81 | 3227 | } |
5443e65e | 3228 | |
75bd7f81 | 3229 | //_____________________________________________________________________________ |
3230 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3231 | ::GetNumberOfTimeBins() const | |
5443e65e | 3232 | { |
3233 | // | |
3234 | // Returns number of SENSITIVE time bins | |
3235 | // | |
3236 | ||
4551ea7c | 3237 | Int_t tb; |
3238 | Int_t layer; | |
3239 | ||
3240 | for (tb = kMaxTimeBinIndex - 1; tb >= 0; tb--) { | |
5443e65e | 3241 | layer = GetLayerNumber(tb); |
4551ea7c | 3242 | if (layer >= 0) { |
3243 | break; | |
3244 | } | |
5443e65e | 3245 | } |
75bd7f81 | 3246 | |
4551ea7c | 3247 | return tb + 1; |
5443e65e | 3248 | |
75bd7f81 | 3249 | } |
5443e65e | 3250 | |
75bd7f81 | 3251 | //_____________________________________________________________________________ |
3252 | void AliTRDtracker::AliTRDtrackingSector | |
4551ea7c | 3253 | ::InsertLayer(AliTRDpropagationLayer *pl) |
5443e65e | 3254 | { |
3255 | // | |
3256 | // Insert layer <pl> in fLayers array. | |
3257 | // Layers are sorted according to X coordinate. | |
75bd7f81 | 3258 | // |
5443e65e | 3259 | |
4551ea7c | 3260 | if (fN == ((Int_t) kMaxLayersPerSector)) { |
3261 | //AliWarning("Too many layers !\n"); | |
3262 | return; | |
3263 | } | |
3264 | ||
3265 | if (fN == 0) { | |
3266 | fLayers[fN++] = pl; | |
ad670fba | 3267 | return; |
3268 | } | |
3269 | ||
4551ea7c | 3270 | Int_t i = Find(pl->GetX()); |
3271 | ||
3272 | memmove(fLayers+i+1,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*)); | |
3273 | ||
3274 | fLayers[i] = pl; | |
3275 | fN++; | |
5443e65e | 3276 | |
3277 | } | |
3278 | ||
75bd7f81 | 3279 | //_____________________________________________________________________________ |
3280 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3281 | ::Find(Double_t x) const | |
5443e65e | 3282 | { |
3283 | // | |
3284 | // Returns index of the propagation layer nearest to X | |
3285 | // | |
3286 | ||
4551ea7c | 3287 | if (x <= fLayers[0]->GetX()) { |
3288 | return 0; | |
3289 | } | |
3290 | ||
3291 | if (x > fLayers[fN-1]->GetX()) { | |
3292 | return fN; | |
3293 | } | |
3294 | ||
3295 | Int_t b = 0; | |
3296 | Int_t e = fN-1; | |
3297 | Int_t m = (b + e) / 2; | |
3298 | ||
3299 | for (; b < e; m = (b + e) / 2) { | |
3300 | if (x > fLayers[m]->GetX()) { | |
3301 | b = m + 1; | |
3302 | } | |
3303 | else { | |
3304 | e = m; | |
3305 | } | |
5443e65e | 3306 | } |
7ad19338 | 3307 | |
75bd7f81 | 3308 | return m; |
7ad19338 | 3309 | |
75bd7f81 | 3310 | } |
7ad19338 | 3311 | |
75bd7f81 | 3312 | //_____________________________________________________________________________ |
3313 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3314 | ::SetZ(Double_t *center, Double_t *w, Double_t *wsensitive ) |
3c625a9b | 3315 | { |
3316 | // | |
6c94f330 | 3317 | // set centers and the width of sectors |
75bd7f81 | 3318 | // |
3319 | ||
4551ea7c | 3320 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3321 | fZc[icham] = center[icham]; | |
3322 | fZmax[icham] = w[icham]; | |
3c625a9b | 3323 | fZmaxSensitive[icham] = wsensitive[icham]; |
3c625a9b | 3324 | } |
75bd7f81 | 3325 | |
3c625a9b | 3326 | } |
5443e65e | 3327 | |
75bd7f81 | 3328 | //_____________________________________________________________________________ |
3c625a9b | 3329 | void AliTRDtracker::AliTRDpropagationLayer::SetHoles(Bool_t *holes) |
3330 | { | |
3331 | // | |
6c94f330 | 3332 | // set centers and the width of sectors |
75bd7f81 | 3333 | // |
3334 | ||
3c625a9b | 3335 | fHole = kFALSE; |
4551ea7c | 3336 | |
3337 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
3c625a9b | 3338 | fIsHole[icham] = holes[icham]; |
4551ea7c | 3339 | if (holes[icham]) { |
3340 | fHole = kTRUE; | |
3341 | } | |
3c625a9b | 3342 | } |
5443e65e | 3343 | |
75bd7f81 | 3344 | } |
5443e65e | 3345 | |
75bd7f81 | 3346 | //_____________________________________________________________________________ |
3347 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3348 | ::InsertCluster(AliTRDcluster *c, UInt_t index) |
75bd7f81 | 3349 | { |
3350 | // | |
3351 | // Insert cluster in cluster array. | |
3352 | // Clusters are sorted according to Y coordinate. | |
3353 | // | |
5443e65e | 3354 | |
4551ea7c | 3355 | if (fTimeBinIndex < 0) { |
3356 | //AliWarning("Attempt to insert cluster into non-sensitive time bin!\n"); | |
3357 | return; | |
3358 | } | |
3359 | ||
3360 | if (fN == (Int_t) kMaxClusterPerTimeBin) { | |
3361 | //AliWarning("Too many clusters !\n"); | |
5443e65e | 3362 | return; |
3363 | } | |
ad670fba | 3364 | |
4551ea7c | 3365 | if (fN == 0) { |
3366 | fIndex[0] = index; | |
3367 | fClusters[fN++] = c; | |
ad670fba | 3368 | return; |
3369 | } | |
4551ea7c | 3370 | |
3371 | Int_t i = Find(c->GetY()); | |
3372 | memmove(fClusters+i+1,fClusters+i,(fN-i)*sizeof(AliTRDcluster*)); | |
3373 | memmove(fIndex +i+1,fIndex +i,(fN-i)*sizeof(UInt_t)); | |
3374 | fIndex[i] = index; | |
3375 | fClusters[i] = c; | |
3376 | fN++; | |
5443e65e | 3377 | |
75bd7f81 | 3378 | } |
5443e65e | 3379 | |
75bd7f81 | 3380 | //_____________________________________________________________________________ |
3381 | Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const | |
3382 | { | |
3383 | // | |
3384 | // Returns index of the cluster nearest in Y | |
3385 | // | |
5443e65e | 3386 | |
4551ea7c | 3387 | if (fN <= 0) { |
3388 | return 0; | |
3389 | } | |
3390 | if (y <= fClusters[0]->GetY()) { | |
3391 | return 0; | |
3392 | } | |
3393 | if (y > fClusters[fN-1]->GetY()) { | |
3394 | return fN; | |
3395 | } | |
3396 | ||
3397 | Int_t b = 0; | |
3398 | Int_t e = fN - 1; | |
3399 | Int_t m = (b + e) / 2; | |
3400 | ||
3401 | for ( ; b < e; m = (b + e) / 2) { | |
3402 | if (y > fClusters[m]->GetY()) { | |
3403 | b = m + 1; | |
3404 | } | |
3405 | else { | |
3406 | e = m; | |
3407 | } | |
5443e65e | 3408 | } |
75bd7f81 | 3409 | |
5443e65e | 3410 | return m; |
75bd7f81 | 3411 | |
5443e65e | 3412 | } |
3413 | ||
75bd7f81 | 3414 | //_____________________________________________________________________________ |
3415 | Int_t AliTRDtracker::AliTRDpropagationLayer | |
3416 | ::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad | |
3417 | , Float_t maxroadz) const | |
7ad19338 | 3418 | { |
3419 | // | |
3420 | // Returns index of the cluster nearest to the given y,z | |
3421 | // | |
75bd7f81 | 3422 | |
4551ea7c | 3423 | Int_t index = -1; |
3424 | Int_t maxn = fN; | |
69b55c55 | 3425 | Float_t mindist = maxroad; |
4551ea7c | 3426 | |
3427 | for (Int_t i = Find(y-maxroad); i < maxn; i++) { | |
3428 | AliTRDcluster *c = (AliTRDcluster *) (fClusters[i]); | |
69b55c55 | 3429 | Float_t ycl = c->GetY(); |
4551ea7c | 3430 | if (ycl > (y + maxroad)) { |
3431 | break; | |
3432 | } | |
3433 | if (TMath::Abs(c->GetZ() - z) > maxroadz) { | |
3434 | continue; | |
3435 | } | |
3436 | if (TMath::Abs(ycl - y) < mindist) { | |
3437 | mindist = TMath::Abs(ycl - y); | |
3438 | index = fIndex[i]; | |
3439 | } | |
6c94f330 | 3440 | } |
75bd7f81 | 3441 | |
7ad19338 | 3442 | return index; |
7ad19338 | 3443 | |
75bd7f81 | 3444 | } |
7ad19338 | 3445 | |
75bd7f81 | 3446 | //_____________________________________________________________________________ |
4551ea7c | 3447 | Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c) |
75bd7f81 | 3448 | { |
3449 | // | |
3450 | // Returns correction factor for tilted pads geometry | |
3451 | // | |
5443e65e | 3452 | |
4551ea7c | 3453 | Int_t det = c->GetDetector(); |
3454 | Int_t plane = fGeom->GetPlane(det); | |
3551db50 | 3455 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(plane,0); |
4551ea7c | 3456 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
b8dc2353 | 3457 | |
4551ea7c | 3458 | if (fNoTilt) { |
3459 | h01 = 0; | |
3460 | } | |
75bd7f81 | 3461 | |
fd621f36 | 3462 | return h01; |
5443e65e | 3463 | |
75bd7f81 | 3464 | } |
c630aafd | 3465 | |
75bd7f81 | 3466 | //_____________________________________________________________________________ |
4551ea7c | 3467 | void AliTRDtracker::CookdEdxTimBin(AliTRDtrack &TRDtrack) |
eab5961e | 3468 | { |
75bd7f81 | 3469 | // |
eab5961e | 3470 | // This is setting fdEdxPlane and fTimBinPlane |
3471 | // Sums up the charge in each plane for track TRDtrack and also get the | |
3472 | // Time bin for Max. Cluster | |
3473 | // Prashant Shukla (shukla@physi.uni-heidelberg.de) | |
75bd7f81 | 3474 | // |
eab5961e | 3475 | |
6d45eaef | 3476 | Double_t clscharge[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; |
3477 | Double_t maxclscharge[AliESDtrack::kNPlane]; | |
3478 | Int_t nCluster[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; | |
3479 | Int_t timebin[AliESDtrack::kNPlane]; | |
3480 | ||
4551ea7c | 3481 | // Initialization of cluster charge per plane. |
6d45eaef | 3482 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
3483 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { | |
3484 | clscharge[iPlane][iSlice] = 0.0; | |
4551ea7c | 3485 | nCluster[iPlane][iSlice] = 0; |
6d45eaef | 3486 | } |
3487 | } | |
eab5961e | 3488 | |
4551ea7c | 3489 | // Initialization of cluster charge per plane. |
f122c485 | 3490 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
4551ea7c | 3491 | timebin[iPlane] = -1; |
eab5961e | 3492 | maxclscharge[iPlane] = 0.0; |
3493 | } | |
3494 | ||
3495 | // Loop through all clusters associated to track TRDtrack | |
3496 | Int_t nClus = TRDtrack.GetNumberOfClusters(); // from Kalmantrack | |
3497 | for (Int_t iClus = 0; iClus < nClus; iClus++) { | |
3498 | Double_t charge = TRDtrack.GetClusterdQdl(iClus); | |
4551ea7c | 3499 | Int_t index = TRDtrack.GetClusterIndex(iClus); |
c6f438c0 | 3500 | AliTRDcluster *pTRDcluster = (AliTRDcluster *) GetCluster(index); |
4551ea7c | 3501 | if (!pTRDcluster) { |
3502 | continue; | |
3503 | } | |
3504 | Int_t tb = pTRDcluster->GetLocalTimeBin(); | |
3505 | if (!tb) { | |
3506 | continue; | |
3507 | } | |
3508 | Int_t detector = pTRDcluster->GetDetector(); | |
3509 | Int_t iPlane = fGeom->GetPlane(detector); | |
55ac2228 | 3510 | if (iPlane >= AliESDtrack::kNPlane) { |
3511 | AliError(Form("Wrong plane %d",iPlane)); | |
3512 | continue; | |
3513 | } | |
fc88348b | 3514 | Int_t iSlice = tb * AliESDtrack::kNSlice |
3515 | / AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); | |
55ac2228 | 3516 | if (iSlice >= AliESDtrack::kNSlice) { |
3517 | AliError(Form("Wrong slice %d",iSlice)); | |
3518 | continue; | |
3519 | } | |
4551ea7c | 3520 | clscharge[iPlane][iSlice] = clscharge[iPlane][iSlice] + charge; |
3521 | if (charge > maxclscharge[iPlane]) { | |
eab5961e | 3522 | maxclscharge[iPlane] = charge; |
4551ea7c | 3523 | timebin[iPlane] = tb; |
eab5961e | 3524 | } |
6d45eaef | 3525 | nCluster[iPlane][iSlice]++; |
4551ea7c | 3526 | } // End of loop over cluster |
eab5961e | 3527 | |
3528 | // Setting the fdEdxPlane and fTimBinPlane variabales | |
4551ea7c | 3529 | Double_t totalCharge = 0.0; |
6c94f330 | 3530 | |
f122c485 | 3531 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
6d45eaef | 3532 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { |
4551ea7c | 3533 | if (nCluster[iPlane][iSlice]) { |
3534 | clscharge[iPlane][iSlice] /= nCluster[iPlane][iSlice]; | |
3535 | } | |
3536 | TRDtrack.SetPIDsignals(clscharge[iPlane][iSlice],iPlane,iSlice); | |
3537 | totalCharge = totalCharge+clscharge[iPlane][iSlice]; | |
bd50219c | 3538 | } |
4551ea7c | 3539 | TRDtrack.SetPIDTimBin(timebin[iPlane],iPlane); |
eab5961e | 3540 | } |
6d45eaef | 3541 | |
4551ea7c | 3542 | // Still needed ???? |
eab5961e | 3543 | // Int_t i; |
3544 | // Int_t nc=TRDtrack.GetNumberOfClusters(); | |
3545 | // Float_t dedx=0; | |
3546 | // for (i=0; i<nc; i++) dedx += TRDtrack.GetClusterdQdl(i); | |
3547 | // dedx /= nc; | |
3548 | // for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) { | |
3549 | // TRDtrack.SetPIDsignals(dedx, iPlane); | |
3550 | // TRDtrack.SetPIDTimBin(timbin[iPlane], iPlane); | |
3551 | // } | |
3552 | ||
75bd7f81 | 3553 | } |
c630aafd | 3554 | |
75bd7f81 | 3555 | //_____________________________________________________________________________ |
3556 | Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1 | |
4551ea7c | 3557 | , AliTRDtrack *track |
3558 | , Int_t *clusters, AliTRDtracklet &tracklet) | |
4f1c04d3 | 3559 | { |
6c94f330 | 3560 | // |
4f1c04d3 | 3561 | // |
75bd7f81 | 3562 | // Try to find nearest clusters to the track in timebins from t0 to t1 |
4f1c04d3 | 3563 | // |
4551ea7c | 3564 | // Correction coeficients - depend on TRD parameters - to be changed accordingly |
3565 | // | |
3566 | ||
3567 | Double_t x[100]; | |
3568 | Double_t yt[100]; | |
3569 | Double_t zt[100]; | |
3570 | Double_t xmean = 0.0; // Reference x | |
3571 | Double_t dz[10][100]; | |
3572 | Double_t dy[10][100]; | |
3573 | Float_t zmean[100]; | |
3574 | Float_t nmean[100]; | |
3575 | Int_t clfound = 0; | |
3576 | Int_t indexes[10][100]; // Indexes of the clusters in the road | |
3577 | Int_t best[10][100]; // Index of best matching cluster | |
3578 | AliTRDcluster *cl[10][100]; // Pointers to the clusters in the road | |
3579 | ||
3580 | for (Int_t it = 0; it < 100; it++) { | |
3581 | x[it] = 0.0; | |
3582 | yt[it] = 0.0; | |
3583 | zt[it] = 0.0; | |
3584 | clusters[it] = -2; | |
3585 | zmean[it] = 0.0; | |
3586 | nmean[it] = 0.0; | |
3587 | for (Int_t ih = 0; ih < 10;ih++) { | |
3588 | indexes[ih][it] = -2; // Reset indexes1 | |
3589 | cl[ih][it] = 0; | |
3590 | dz[ih][it] = -100.0; | |
3591 | dy[ih][it] = -100.0; | |
3592 | best[ih][it] = 0; | |
3593 | } | |
3594 | } | |
ad670fba | 3595 | |
4551ea7c | 3596 | Double_t x0 = track->GetX(); |
3597 | Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2())); | |
3598 | Int_t nall = 0; | |
3599 | Int_t nfound = 0; | |
3600 | Double_t h01 = 0.0; | |
3601 | Int_t plane = -1; | |
3602 | Int_t detector = -1; | |
3603 | Float_t padlength = 0.0; | |
3604 | AliTRDtrack track2(* track); | |
3605 | Float_t snpy = track->GetSnp(); | |
3606 | Float_t tany = TMath::Sqrt(snpy*snpy / (1.0 - snpy*snpy)); | |
3607 | if (snpy < 0.0) { | |
3608 | tany *= -1.0; | |
3609 | } | |
ad670fba | 3610 | |
4551ea7c | 3611 | Double_t sy2 = ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt()); |
3612 | Double_t sz2 = ExpectedSigmaZ2(x0,track->GetTgl()); | |
3613 | Double_t road = 15.0 * TMath::Sqrt(track->GetSigmaY2() + sy2); | |
3614 | if (road > 6.0) { | |
3615 | road = 6.0; | |
3616 | } | |
7e448bcc | 3617 | //road = 20.0; |
4551ea7c | 3618 | |
3619 | for (Int_t it = 0; it < t1-t0; it++) { | |
3620 | ||
3621 | Double_t maxChi2[2] = { fgkMaxChi2, fgkMaxChi2 }; | |
3622 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(it+t0)); | |
3623 | if (timeBin == 0) { | |
3624 | continue; // No indexes1 | |
6c94f330 | 3625 | } |
4551ea7c | 3626 | |
3627 | Int_t maxn = timeBin; | |
3628 | x[it] = timeBin.GetX(); | |
7ad19338 | 3629 | track2.PropagateTo(x[it]); |
6c94f330 | 3630 | yt[it] = track2.GetY(); |
3631 | zt[it] = track2.GetZ(); | |
7ad19338 | 3632 | |
4551ea7c | 3633 | Double_t y = yt[it]; |
3634 | Double_t z = zt[it]; | |
3635 | Double_t chi2 = 1000000.0; | |
4f1c04d3 | 3636 | nall++; |
4551ea7c | 3637 | |
4f1c04d3 | 3638 | // |
4551ea7c | 3639 | // Find 2 nearest cluster at given time bin |
6c94f330 | 3640 | // |
7e448bcc | 3641 | int checkPoint[4] = {0,0,0,0}; |
3642 | double minY = 123456789; | |
3643 | double minD[2] = {1,1}; | |
3644 | ||
4551ea7c | 3645 | for (Int_t i = timeBin.Find(y - road); i < maxn; i++) { |
7e448bcc | 3646 | //for (Int_t i = 0; i < maxn; i++) { |
4551ea7c | 3647 | |
3648 | AliTRDcluster *c = (AliTRDcluster *) (timeBin[i]); | |
7ad19338 | 3649 | h01 = GetTiltFactor(c); |
4551ea7c | 3650 | if (plane < 0) { |
c6f438c0 | 3651 | Int_t det = c->GetDetector(); |
4551ea7c | 3652 | plane = fGeom->GetPlane(det); |
3653 | padlength = TMath::Sqrt(c->GetSigmaZ2() * 12.0); | |
3654 | } | |
7e448bcc | 3655 | |
4551ea7c | 3656 | //if (c->GetLocalTimeBin()==0) continue; |
3657 | if (c->GetY() > (y + road)) { | |
3658 | break; | |
3659 | } | |
7e448bcc | 3660 | |
3661 | fHDeltaX->Fill(c->GetX() - x[it]); | |
3662 | //printf("%f\t%f\t%f \n", c->GetX(), x[it], c->GetX()-x[it]); | |
3663 | ||
3664 | if (TMath::Abs(c->GetY()-y) < TMath::Abs(minY)) { | |
3665 | minY = c->GetY()-y; | |
3666 | minD[0] = c->GetY()-y; | |
3667 | minD[1] = c->GetZ()-z; | |
3668 | } | |
3669 | ||
3670 | checkPoint[0]++; | |
3671 | ||
3672 | fHMinZ->Fill(c->GetZ() - z); | |
3673 | if ((c->GetZ() - z) * (c->GetZ() - z) > 2 * (12.0 * sz2)) { | |
4551ea7c | 3674 | continue; |
7ad19338 | 3675 | } |
7e448bcc | 3676 | checkPoint[1]++; |
7ad19338 | 3677 | |
4551ea7c | 3678 | Double_t dist = TMath::Abs(c->GetZ() - z); |
7e448bcc | 3679 | if (dist > (0.5 * padlength + 6.0 * sigmaz)) { // 0.5 |
4551ea7c | 3680 | continue; // 6 sigma boundary cut |
3681 | } | |
7e448bcc | 3682 | checkPoint[2]++; |
3683 | ||
4551ea7c | 3684 | Double_t cost = 0.0; |
3685 | // Sigma boundary cost function | |
3686 | if (dist> (0.5 * padlength - sigmaz)){ | |
3687 | cost = (dist - 0.5*padlength) / (2.0 * sigmaz); | |
3688 | if (cost > -1) { | |
3689 | cost = (cost + 1.0) * (cost + 1.0); | |
3690 | } | |
3691 | else { | |
3692 | cost = 0.0; | |
3693 | } | |
3694 | } | |
3695 | //Int_t label = TMath::Abs(track->GetLabel()); | |
3696 | //if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue; | |
3697 | chi2 = track2.GetPredictedChi2(c,h01) + cost; | |
7ad19338 | 3698 | clfound++; |
6c94f330 | 3699 | |
4551ea7c | 3700 | if (chi2 > maxChi2[1]) { |
3701 | continue; | |
3702 | } | |
7e448bcc | 3703 | checkPoint[3]++; |
3704 | ||
4551ea7c | 3705 | detector = c->GetDetector(); |
3706 | // Store the clusters in the road | |
3707 | for (Int_t ih = 2; ih < 9; ih++) { | |
3708 | if (cl[ih][it] == 0) { | |
3709 | cl[ih][it] = c; | |
3710 | indexes[ih][it] = timeBin.GetIndex(i); // Index - 9 - reserved for outliers | |
7ad19338 | 3711 | break; |
3712 | } | |
4f1c04d3 | 3713 | } |
4551ea7c | 3714 | |
3715 | if (chi2 < maxChi2[0]) { | |
7ad19338 | 3716 | maxChi2[1] = maxChi2[0]; |
3717 | maxChi2[0] = chi2; | |
3718 | indexes[1][it] = indexes[0][it]; | |
3719 | cl[1][it] = cl[0][it]; | |
3720 | indexes[0][it] = timeBin.GetIndex(i); | |
3721 | cl[0][it] = c; | |
3722 | continue; | |
3723 | } | |
4551ea7c | 3724 | maxChi2[1] = chi2; |
3725 | cl[1][it] = c; | |
3726 | indexes[1][it] = timeBin.GetIndex(i); | |
3727 | ||
3728 | } | |
7e448bcc | 3729 | |
3730 | for(int iCheckPoint = 0; iCheckPoint<4; iCheckPoint++) | |
3731 | fHFindCl[iCheckPoint]->Fill(checkPoint[iCheckPoint]); | |
3732 | ||
3733 | if (checkPoint[3]) { | |
3734 | if (track->GetPt() > 0) fHMinYPos->Fill(minY); | |
3735 | else fHMinYNeg->Fill(minY); | |
3736 | ||
3737 | fHMinD->Fill(minD[0], minD[1]); | |
3738 | } | |
4551ea7c | 3739 | |
3740 | if (cl[0][it]) { | |
7ad19338 | 3741 | nfound++; |
3742 | xmean += x[it]; | |
3743 | } | |
4551ea7c | 3744 | |
4f1c04d3 | 3745 | } |
4551ea7c | 3746 | |
3747 | if (nfound < 4) { | |
3748 | return 0; | |
3749 | } | |
3750 | xmean /= Float_t(nfound); // Middle x | |
3751 | track2.PropagateTo(xmean); // Propagate track to the center | |
3752 | ||
4f1c04d3 | 3753 | // |
4551ea7c | 3754 | // Choose one of the variants |
7ad19338 | 3755 | // |
4551ea7c | 3756 | Int_t changes[10]; |
3757 | Float_t sumz = 0.0; | |
3758 | Float_t sum = 0.0; | |
3759 | Double_t sumdy = 0.0; | |
3760 | Double_t sumdy2 = 0.0; | |
3761 | Double_t sumx = 0.0; | |
3762 | Double_t sumxy = 0.0; | |
3763 | Double_t sumx2 = 0.0; | |
3764 | Double_t mpads = 0.0; | |
3765 | ||
3766 | Int_t ngood[10]; | |
3767 | Int_t nbad[10]; | |
3768 | ||
7ad19338 | 3769 | Double_t meanz[10]; |
4551ea7c | 3770 | Double_t moffset[10]; // Mean offset |
3771 | Double_t mean[10]; // Mean value | |
3772 | Double_t angle[10]; // Angle | |
3773 | ||
3774 | Double_t smoffset[10]; // Sigma of mean offset | |
3775 | Double_t smean[10]; // Sigma of mean value | |
3776 | Double_t sangle[10]; // Sigma of angle | |
3777 | Double_t smeanangle[10]; // Correlation | |
3778 | ||
7ad19338 | 3779 | Double_t sigmas[10]; |
4551ea7c | 3780 | Double_t tchi2s[10]; // Chi2s for tracklet |
ad670fba | 3781 | |
4551ea7c | 3782 | for (Int_t it = 0; it < 10; it++) { |
ad670fba | 3783 | |
4551ea7c | 3784 | ngood[it] = 0; |
3785 | nbad[it] = 0; | |
3786 | ||
3787 | meanz[it] = 0.0; | |
3788 | moffset[it] = 0.0; // Mean offset | |
3789 | mean[it] = 0.0; // Mean value | |
3790 | angle[it] = 0.0; // Angle | |
3791 | ||
7e448bcc | 3792 | smoffset[it] = 1.0e5; // Sigma of mean offset |
3793 | smean[it] = 1.0e5; // Sigma of mean value | |
3794 | sangle[it] = 1.0e5; // Sigma of angle | |
4551ea7c | 3795 | smeanangle[it] = 0.0; // Correlation |
3796 | ||
7e448bcc | 3797 | sigmas[it] = 1.0e5; |
3798 | tchi2s[it] = 1.0e5; // Chi2s for tracklet | |
75bd7f81 | 3799 | |
3800 | } | |
3801 | ||
7ad19338 | 3802 | // |
4551ea7c | 3803 | // Calculate zmean |
7ad19338 | 3804 | // |
4551ea7c | 3805 | for (Int_t it = 0; it < t1 - t0; it++) { |
3806 | if (!cl[0][it]) { | |
3807 | continue; | |
3808 | } | |
3809 | for (Int_t dt = -3; dt <= 3; dt++) { | |
3810 | if (it+dt < 0) { | |
3811 | continue; | |
3812 | } | |
3813 | if (it+dt > t1-t0) { | |
3814 | continue; | |
3815 | } | |
3816 | if (!cl[0][it+dt]) { | |
3817 | continue; | |
3818 | } | |
3819 | zmean[it] += cl[0][it+dt]->GetZ(); | |
3820 | nmean[it] += 1.0; | |
7ad19338 | 3821 | } |
4551ea7c | 3822 | zmean[it] /= nmean[it]; |
7ad19338 | 3823 | } |
4551ea7c | 3824 | |
3825 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3826 | ||
3827 | best[0][it] = 0; | |
3828 | ||
3829 | for (Int_t ih = 0; ih < 10; ih++) { | |
3830 | dz[ih][it] = -100.0; | |
3831 | dy[ih][it] = -100.0; | |
3832 | if (!cl[ih][it]) { | |
3833 | continue; | |
3834 | } | |
3835 | Double_t xcluster = cl[ih][it]->GetX(); | |
3836 | Double_t ytrack; | |
3837 | Double_t ztrack; | |
3838 | track2.GetProlongation(xcluster,ytrack,ztrack ); | |
3839 | dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // Calculate distance from track in z | |
3840 | dy[ih][it] = cl[ih][it]->GetY() + dz[ih][it]*h01 - ytrack; // and in y | |
7ad19338 | 3841 | } |
4551ea7c | 3842 | |
3843 | // Minimize changes | |
3844 | if (!cl[0][it]) { | |
3845 | continue; | |
3846 | } | |
3847 | if ((TMath::Abs(cl[0][it]->GetZ()-zmean[it]) > padlength * 0.8) && | |
3848 | (cl[1][it])) { | |
3849 | if (TMath::Abs(cl[1][it]->GetZ()-zmean[it]) < padlength * 0.5) { | |
3850 | best[0][it] = 1; | |
4f1c04d3 | 3851 | } |
4551ea7c | 3852 | } |
3853 | ||
7ad19338 | 3854 | } |
4551ea7c | 3855 | |
7ad19338 | 3856 | // |
4551ea7c | 3857 | // Iterative choice of "best path" |
6c94f330 | 3858 | // |
4551ea7c | 3859 | Int_t label = TMath::Abs(track->GetLabel()); |
3860 | Int_t bestiter = 0; | |
3861 | ||
3862 | for (Int_t iter = 0; iter < 9; iter++) { | |
3863 | ||
3864 | changes[iter] = 0; | |
3865 | sumz = 0; | |
3866 | sum = 0; | |
3867 | sumdy = 0; | |
3868 | sumdy2 = 0; | |
3869 | sumx = 0; | |
3870 | sumx2 = 0; | |
3871 | sumxy = 0; | |
3872 | mpads = 0; | |
3873 | ngood[iter] = 0; | |
3874 | nbad[iter] = 0; | |
3875 | ||
3876 | // Linear fit | |
3877 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3878 | ||
3879 | if (!cl[best[iter][it]][it]) { | |
3880 | continue; | |
3881 | } | |
3882 | ||
3883 | // Calculates pad-row changes | |
3884 | Double_t zbefore = cl[best[iter][it]][it]->GetZ(); | |
3885 | Double_t zafter = cl[best[iter][it]][it]->GetZ(); | |
3886 | for (Int_t itd = it - 1; itd >= 0; itd--) { | |
7ad19338 | 3887 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3888 | zbefore = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3889 | break; |
3890 | } | |
3891 | } | |
4551ea7c | 3892 | for (Int_t itd = it + 1; itd < t1 - t0; itd++) { |
7ad19338 | 3893 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3894 | zafter = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3895 | break; |
3896 | } | |
3897 | } | |
4551ea7c | 3898 | if ((TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore) > 0.1) && |
3899 | (TMath::Abs(cl[best[iter][it]][it]->GetZ()- zafter) > 0.1)) { | |
3900 | changes[iter]++; | |
3901 | } | |
3902 | ||
3903 | Double_t dx = x[it]-xmean; // Distance to reference x | |
3904 | sumz += cl[best[iter][it]][it]->GetZ(); | |
4f1c04d3 | 3905 | sum++; |
4551ea7c | 3906 | sumdy += dy[best[iter][it]][it]; |
3907 | sumdy2 += dy[best[iter][it]][it]*dy[best[iter][it]][it]; | |
3908 | sumx += dx; | |
3909 | sumx2 += dx*dx; | |
7ad19338 | 3910 | sumxy += dx*dy[best[iter][it]][it]; |
4551ea7c | 3911 | mpads += cl[best[iter][it]][it]->GetNPads(); |
3912 | if ((cl[best[iter][it]][it]->GetLabel(0) == label) || | |
3913 | (cl[best[iter][it]][it]->GetLabel(1) == label) || | |
3914 | (cl[best[iter][it]][it]->GetLabel(2) == label)) { | |
7ad19338 | 3915 | ngood[iter]++; |
4f1c04d3 | 3916 | } |
4551ea7c | 3917 | else { |
7ad19338 | 3918 | nbad[iter]++; |
4f1c04d3 | 3919 | } |
4551ea7c | 3920 | |
4f1c04d3 | 3921 | } |
4551ea7c | 3922 | |
7ad19338 | 3923 | // |
6c94f330 | 3924 | // calculates line parameters |
7ad19338 | 3925 | // |
4551ea7c | 3926 | Double_t det = sum*sumx2 - sumx*sumx; |
3927 | angle[iter] = (sum*sumxy - sumx*sumdy) / det; | |
3928 | mean[iter] = (sumx2*sumdy - sumx*sumxy) / det; | |
3929 | meanz[iter] = sumz / sum; | |
3930 | moffset[iter] = sumdy / sum; | |
3931 | mpads /= sum; // Mean number of pads | |
3932 | ||
3933 | Double_t sigma2 = 0.0; // Normalized residuals - for line fit | |
3934 | Double_t sigma1 = 0.0; // Normalized residuals - constant fit | |
3935 | ||
3936 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3937 | if (!cl[best[iter][it]][it]) { | |
3938 | continue; | |
3939 | } | |
3940 | Double_t dx = x[it] - xmean; | |
3941 | Double_t ytr = mean[iter] + angle[iter] * dx; | |
3942 | sigma2 += (dy[best[iter][it]][it] - ytr) | |
3943 | * (dy[best[iter][it]][it] - ytr); | |
3944 | sigma1 += (dy[best[iter][it]][it] - moffset[iter]) | |
3945 | * (dy[best[iter][it]][it] - moffset[iter]); | |
7ad19338 | 3946 | sum++; |
4f1c04d3 | 3947 | } |
4551ea7c | 3948 | sigma2 /= (sum - 2); // Normalized residuals |
3949 | sigma1 /= (sum - 1); // Normalized residuals | |
3950 | smean[iter] = sigma2 * (sumx2 / det); // Estimated error2 of mean | |
3951 | sangle[iter] = sigma2 * ( sum / det); // Estimated error2 of angle | |
3952 | smeanangle[iter] = sigma2 * (-sumx / det); // Correlation | |
3953 | sigmas[iter] = TMath::Sqrt(sigma1); | |
3954 | smoffset[iter] = (sigma1 / sum) + 0.01*0.01; // Sigma of mean offset + unisochronity sigma | |
3955 | ||
6c94f330 | 3956 | // |
4551ea7c | 3957 | // Iterative choice of "better path" |
6c94f330 | 3958 | // |
4551ea7c | 3959 | for (Int_t it = 0; it < t1 - t0; it++) { |
3960 | ||
3961 | if (!cl[best[iter][it]][it]) { | |
3962 | continue; | |
3963 | } | |
3964 | ||
3965 | // Add unisochronity + angular effect contribution | |
3966 | Double_t sigmatr2 = smoffset[iter] + 0.5*tany*tany; | |
3967 | Double_t sweight = 1.0/sigmatr2 + 1.0/track->GetSigmaY2(); | |
3968 | Double_t weighty = (moffset[iter] / sigmatr2) / sweight; // Weighted mean | |
3969 | Double_t sigmacl = TMath::Sqrt(sigma1*sigma1 + track->GetSigmaY2()); | |
3970 | Double_t mindist = 100000.0; | |
3971 | Int_t ihbest = 0; | |
3972 | ||
3973 | for (Int_t ih = 0; ih < 10; ih++) { | |
3974 | if (!cl[ih][it]) { | |
3975 | break; | |
3976 | } | |
3977 | Double_t dist2 = (dy[ih][it] - weighty) / sigmacl; | |
3978 | dist2 *= dist2; // Chi2 distance | |
3979 | if (dist2 < mindist) { | |
7ad19338 | 3980 | mindist = dist2; |
4551ea7c | 3981 | ihbest = ih; |
7ad19338 | 3982 | } |
3983 | } | |
4551ea7c | 3984 | best[iter+1][it] = ihbest; |
4f1c04d3 | 3985 | } |
4551ea7c | 3986 | |
4f1c04d3 | 3987 | // |
4551ea7c | 3988 | // Update best hypothesy if better chi2 according tracklet position and angle |
7ad19338 | 3989 | // |
69b55c55 | 3990 | Double_t sy2 = smean[iter] + track->GetSigmaY2(); |
4551ea7c | 3991 | Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee; |
3992 | Double_t say = track->GetSigmaSnpY(); // track->fCey; | |
3993 | //Double_t chi20 = mean[bestiter]*mean[bestiter ] / sy2+angle[bestiter]*angle[bestiter]/sa2; | |
3994 | //Double_t chi21 = mean[iter]*mean[iter] / sy2+angle[iter]*angle[iter]/sa2; | |
6c94f330 | 3995 | |
4551ea7c | 3996 | Double_t detchi = sy2*sa2 - say*say; |
3997 | Double_t invers[3] = {sa2/detchi,sy2/detchi,-say/detchi}; // Inverse value of covariance matrix | |
4f1c04d3 | 3998 | |
4551ea7c | 3999 | Double_t chi20 = mean[bestiter] * mean[bestiter] * invers[0] |
4000 | + angle[bestiter] * angle[bestiter] * invers[1] | |
4001 | + 2.0 * mean[bestiter] * angle[bestiter] * invers[2]; | |
4002 | Double_t chi21 = mean[iter] * mean[iter] * invers[0] | |
4003 | + angle[iter] * angle[iter] * invers[1] | |
4004 | + 2.0 * mean[iter] * angle[iter] * invers[2]; | |
4005 | tchi2s[iter] = chi21; | |
4006 | ||
4007 | if ((changes[iter] <= changes[bestiter]) && | |
4008 | (chi21 < chi20)) { | |
4009 | bestiter = iter; | |
7ad19338 | 4010 | } |
4551ea7c | 4011 | |
7ad19338 | 4012 | } |
4551ea7c | 4013 | |
7ad19338 | 4014 | // |
4551ea7c | 4015 | // Set clusters |
7ad19338 | 4016 | // |
4551ea7c | 4017 | Double_t sigma2 = sigmas[0]; // Choose as sigma from 0 iteration |
4018 | Short_t maxpos = -1; | |
4019 | Float_t maxcharge = 0.0; | |
4020 | Short_t maxpos4 = -1; | |
4021 | Float_t maxcharge4 = 0.0; | |
4022 | Short_t maxpos5 = -1; | |
4023 | Float_t maxcharge5 = 0.0; | |
8979685e | 4024 | |
7ad19338 | 4025 | //if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.; |
4026 | //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept | |
4027 | ||
4e009ce4 | 4028 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0) |
4029 | ,-AliTracker::GetBz()*0.1); | |
4551ea7c | 4030 | Double_t expectederr = sigma2*sigma2 + 0.01*0.01; |
4031 | if (mpads > 3.5) { | |
4032 | expectederr += (mpads - 3.5) * 0.04; | |
4033 | } | |
4034 | if (changes[bestiter] > 1) { | |
4035 | expectederr += changes[bestiter] * 0.01; | |
4036 | } | |
4037 | expectederr += (0.03 * (tany-exB)*(tany-exB)) * 15.0; | |
4038 | //if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.; | |
7ad19338 | 4039 | //expectederr+=10000; |
4551ea7c | 4040 | |
4041 | for (Int_t it = 0; it < t1 - t0; it++) { | |
4042 | ||
4043 | if (!cl[best[bestiter][it]][it]) { | |
4044 | continue; | |
69b55c55 | 4045 | } |
4551ea7c | 4046 | |
4047 | cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // Set cluster error | |
4048 | if (!cl[best[bestiter][it]][it]->IsUsed()) { | |
4049 | cl[best[bestiter][it]][it]->SetY(cl[best[bestiter][it]][it]->GetY()); | |
4050 | //cl[best[bestiter][it]][it]->Use(); | |
4051 | } | |
4052 | ||
4053 | // Time bins with maximal charge | |
4054 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
69b55c55 | 4055 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4056 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4057 | } |
6c94f330 | 4058 | |
4551ea7c | 4059 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
4060 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
69b55c55 | 4061 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4062 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4063 | } |
4064 | } | |
4551ea7c | 4065 | |
4066 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
4067 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
69b55c55 | 4068 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4069 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4070 | } |
7ad19338 | 4071 | } |
4551ea7c | 4072 | |
4073 | // Time bins with maximal charge | |
4074 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
8979685e | 4075 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4076 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4077 | } |
6c94f330 | 4078 | |
4551ea7c | 4079 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
4080 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
8979685e | 4081 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4082 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4083 | } |
4084 | } | |
4551ea7c | 4085 | |
4086 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
4087 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
8979685e | 4088 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4089 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4090 | } |
4091 | } | |
4551ea7c | 4092 | |
7ad19338 | 4093 | clusters[it+t0] = indexes[best[bestiter][it]][it]; |
4551ea7c | 4094 | |
4095 | // Still needed ???? | |
4096 | //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 && | |
4097 | //cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0] | |
4098 | // = indexes[best[bestiter][it]][it]; //Test | |
4099 | ||
7ad19338 | 4100 | } |
4551ea7c | 4101 | |
7ad19338 | 4102 | // |
4551ea7c | 4103 | // Set tracklet parameters |
6c94f330 | 4104 | // |
4551ea7c | 4105 | Double_t trackleterr2 = smoffset[bestiter] + 0.01*0.01; |
4106 | if (mpads > 3.5) { | |
4107 | trackleterr2 += (mpads - 3.5) * 0.04; | |
4108 | } | |
4109 | trackleterr2 += changes[bestiter] * 0.01; | |
4110 | trackleterr2 *= TMath::Max(14.0 - nfound,1.0); | |
4111 | trackleterr2 += 0.2 * (tany-exB)*(tany-exB); | |
4112 | ||
4113 | // Set tracklet parameters | |
4114 | tracklet.Set(xmean | |
4115 | ,track2.GetY() + moffset[bestiter] | |
4116 | ,meanz[bestiter] | |
4117 | ,track2.GetAlpha() | |
4118 | ,trackleterr2); | |
7ad19338 | 4119 | tracklet.SetTilt(h01); |
4120 | tracklet.SetP0(mean[bestiter]); | |
4121 | tracklet.SetP1(angle[bestiter]); | |
4122 | tracklet.SetN(nfound); | |
4123 | tracklet.SetNCross(changes[bestiter]); | |
4124 | tracklet.SetPlane(plane); | |
4125 | tracklet.SetSigma2(expectederr); | |
4126 | tracklet.SetChi2(tchi2s[bestiter]); | |
8979685e | 4127 | tracklet.SetMaxPos(maxpos,maxpos4,maxpos5); |
27eaf44b | 4128 | track->SetTracklets(plane,tracklet); |
4129 | track->SetNWrong(track->GetNWrong() + nbad[0]); | |
4551ea7c | 4130 | |
7ad19338 | 4131 | // |
4132 | // Debuging part | |
4133 | // | |
69b55c55 | 4134 | TClonesArray array0("AliTRDcluster"); |
4135 | TClonesArray array1("AliTRDcluster"); | |
4551ea7c | 4136 | array0.ExpandCreateFast(t1 - t0 + 1); |
4137 | array1.ExpandCreateFast(t1 - t0 + 1); | |
4138 | TTreeSRedirector &cstream = *fDebugStreamer; | |
7ad19338 | 4139 | AliTRDcluster dummy; |
4140 | Double_t dy0[100]; | |
8979685e | 4141 | Double_t dyb[100]; |
4142 | ||
4551ea7c | 4143 | for (Int_t it = 0; it < t1 - t0; it++) { |
7ad19338 | 4144 | dy0[it] = dy[0][it]; |
4145 | dyb[it] = dy[best[bestiter][it]][it]; | |
4551ea7c | 4146 | if (cl[0][it]) { |
7ad19338 | 4147 | new(array0[it]) AliTRDcluster(*cl[0][it]); |
4148 | } | |
4551ea7c | 4149 | else { |
7ad19338 | 4150 | new(array0[it]) AliTRDcluster(dummy); |
4151 | } | |
4152 | if(cl[best[bestiter][it]][it]) { | |
4153 | new(array1[it]) AliTRDcluster(*cl[best[bestiter][it]][it]); | |
4154 | } | |
4155 | else{ | |
4156 | new(array1[it]) AliTRDcluster(dummy); | |
4157 | } | |
4f1c04d3 | 4158 | } |
7ad19338 | 4159 | TGraph graph0(t1-t0,x,dy0); |
4160 | TGraph graph1(t1-t0,x,dyb); | |
4161 | TGraph graphy(t1-t0,x,yt); | |
4162 | TGraph graphz(t1-t0,x,zt); | |
4551ea7c | 4163 | |
4164 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
4165 | cstream << "tracklet" | |
4166 | << "track.=" << track // Track parameters | |
4167 | << "tany=" << tany // Tangent of the local track angle | |
4168 | << "xmean=" << xmean // Xmean - reference x of tracklet | |
4169 | << "tilt=" << h01 // Tilt angle | |
4170 | << "nall=" << nall // Number of foundable clusters | |
4171 | << "nfound=" << nfound // Number of found clusters | |
4172 | << "clfound=" << clfound // Total number of found clusters in road | |
4173 | << "mpads=" << mpads // Mean number of pads per cluster | |
4174 | << "plane=" << plane // Plane number | |
4175 | << "detector=" << detector // Detector number | |
4176 | << "road=" << road // The width of the used road | |
4177 | << "graph0.=" << &graph0 // x - y = dy for closest cluster | |
4178 | << "graph1.=" << &graph1 // x - y = dy for second closest cluster | |
4179 | << "graphy.=" << &graphy // y position of the track | |
4180 | << "graphz.=" << &graphz // z position of the track | |
4181 | //<< "fCl.=" << &array0 // closest cluster | |
4182 | //<< "fCl2.=" << &array1 // second closest cluster | |
4183 | << "maxpos=" << maxpos // Maximal charge postion | |
4184 | << "maxcharge=" << maxcharge // Maximal charge | |
4185 | << "maxpos4=" << maxpos4 // Maximal charge postion - after bin 4 | |
4186 | << "maxcharge4=" << maxcharge4 // Maximal charge - after bin 4 | |
4187 | << "maxpos5=" << maxpos5 // Maximal charge postion - after bin 5 | |
4188 | << "maxcharge5=" << maxcharge5 // Maximal charge - after bin 5 | |
4189 | << "bestiter=" << bestiter // Best iteration number | |
4190 | << "tracklet.=" << &tracklet // Corrspond to the best iteration | |
4191 | << "tchi20=" << tchi2s[0] // Chi2 of cluster in the 0 iteration | |
4192 | << "tchi2b=" << tchi2s[bestiter] // Chi2 of cluster in the best iteration | |
4193 | << "sigmas0=" << sigmas[0] // Residuals sigma | |
4194 | << "sigmasb=" << sigmas[bestiter] // Residulas sigma | |
4195 | << "ngood0=" << ngood[0] // Number of good clusters in 0 iteration | |
4196 | << "nbad0=" << nbad[0] // Number of bad clusters in 0 iteration | |
4197 | << "ngoodb=" << ngood[bestiter] // in best iteration | |
4198 | << "nbadb=" << nbad[bestiter] // in best iteration | |
4199 | << "changes0=" << changes[0] // Changes of pardrows in iteration number 0 | |
4200 | << "changesb=" << changes[bestiter] // Changes of pardrows in best iteration | |
4201 | << "moffset0=" << moffset[0] // Offset fixing angle in iter=0 | |
4202 | << "smoffset0=" << smoffset[0] // Sigma of offset fixing angle in iter=0 | |
4203 | << "moffsetb=" << moffset[bestiter] // Offset fixing angle in iter=best | |
4204 | << "smoffsetb=" << smoffset[bestiter] // Sigma of offset fixing angle in iter=best | |
4205 | << "mean0=" << mean[0] // Mean dy in iter=0; | |
4206 | << "smean0=" << smean[0] // Sigma of mean dy in iter=0 | |
4207 | << "meanb=" << mean[bestiter] // Mean dy in iter=best | |
4208 | << "smeanb=" << smean[bestiter] // Sigma of mean dy in iter=best | |
4209 | << "angle0=" << angle[0] // Angle deviation in the iteration number 0 | |
4210 | << "sangle0=" << sangle[0] // Sigma of angular deviation in iteration number 0 | |
4211 | << "angleb=" << angle[bestiter] // Angle deviation in the best iteration | |
4212 | << "sangleb=" << sangle[bestiter] // Sigma of angle deviation in the best iteration | |
4213 | << "expectederr=" << expectederr // Expected error of cluster position | |
4214 | << "\n"; | |
4215 | } | |
4216 | ||
4f1c04d3 | 4217 | return nfound; |
4f1c04d3 | 4218 | |
75bd7f81 | 4219 | } |
4f1c04d3 | 4220 | |
75bd7f81 | 4221 | //_____________________________________________________________________________ |
4222 | Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist | |
4223 | , Int_t *outlist, Bool_t down) | |
69b55c55 | 4224 | { |
4225 | // | |
4551ea7c | 4226 | // Sort eleements according occurancy |
4227 | // The size of output array has is 2*n | |
69b55c55 | 4228 | // |
75bd7f81 | 4229 | |
4551ea7c | 4230 | Int_t *sindexS = new Int_t[n]; // Temporary array for sorting |
4231 | Int_t *sindexF = new Int_t[2*n]; | |
4232 | for (Int_t i = 0; i < n; i++) { | |
4233 | sindexF[i] = 0; | |
4234 | } | |
4235 | ||
4236 | TMath::Sort(n,inlist,sindexS,down); | |
4237 | ||
4238 | Int_t last = inlist[sindexS[0]]; | |
4239 | Int_t val = last; | |
4240 | sindexF[0] = 1; | |
4241 | sindexF[0+n] = last; | |
4242 | Int_t countPos = 0; | |
4243 | ||
4244 | // Find frequency | |
4245 | for (Int_t i = 1; i < n; i++) { | |
69b55c55 | 4246 | val = inlist[sindexS[i]]; |
4551ea7c | 4247 | if (last == val) { |
4248 | sindexF[countPos]++; | |
4249 | } | |
4250 | else { | |
69b55c55 | 4251 | countPos++; |
4252 | sindexF[countPos+n] = val; | |
4253 | sindexF[countPos]++; | |
4551ea7c | 4254 | last = val; |
69b55c55 | 4255 | } |
4256 | } | |
4551ea7c | 4257 | if (last == val) { |
4258 | countPos++; | |
4259 | } | |
4260 | ||
4261 | // Sort according frequency | |
4262 | TMath::Sort(countPos,sindexF,sindexS,kTRUE); | |
4263 | ||
4264 | for (Int_t i = 0; i < countPos; i++) { | |
69b55c55 | 4265 | outlist[2*i ] = sindexF[sindexS[i]+n]; |
4266 | outlist[2*i+1] = sindexF[sindexS[i]]; | |
4267 | } | |
4551ea7c | 4268 | |
69b55c55 | 4269 | delete [] sindexS; |
4270 | delete [] sindexF; | |
4271 | ||
4272 | return countPos; | |
75bd7f81 | 4273 | |
69b55c55 | 4274 | } |
4275 | ||
75bd7f81 | 4276 | //_____________________________________________________________________________ |
4551ea7c | 4277 | AliTRDtrack *AliTRDtracker::RegisterSeed(AliTRDseed *seeds, Double_t *params) |
69b55c55 | 4278 | { |
4279 | // | |
75bd7f81 | 4280 | // Register a seed |
69b55c55 | 4281 | // |
4551ea7c | 4282 | |
4283 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4284 | Double_t shift = AliTRDgeometry::GetAlpha()/2.0; | |
69b55c55 | 4285 | Double_t c[15]; |
4551ea7c | 4286 | |
4287 | c[ 0] = 0.2; | |
4288 | c[ 1] = 0.0; c[ 2] = 2.0; | |
4289 | c[ 3] = 0.0; c[ 4] = 0.0; c[ 5] = 0.02; | |
4290 | c[ 6] = 0.0; c[ 7] = 0.0; c[ 8] = 0.0; c[ 9] = 0.1; | |
4291 | c[10] = 0.0; c[11] = 0.0; c[12] = 0.0; c[13] = 0.0; c[14] = params[5]*params[5]*0.01; | |
4292 | ||
4293 | Int_t index = 0; | |
4294 | AliTRDcluster *cl = 0; | |
4295 | ||
4296 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { | |
4297 | if (seeds[ilayer].IsOK()) { | |
4298 | for (Int_t itime = 22; itime > 0; itime--) { | |
ca1e1e5b | 4299 | if (seeds[ilayer].GetIndexes(itime) > 0) { |
4300 | index = seeds[ilayer].GetIndexes(itime); | |
4301 | cl = seeds[ilayer].GetClusters(itime); | |
69b55c55 | 4302 | break; |
4303 | } | |
4304 | } | |
4305 | } | |
4551ea7c | 4306 | if (index > 0) { |
4307 | break; | |
4308 | } | |
69b55c55 | 4309 | } |
4551ea7c | 4310 | if (cl == 0) { |
4311 | return 0; | |
4312 | } | |
4313 | ||
4314 | AliTRDtrack *track = new AliTRDtrack(cl | |
4315 | ,index | |
4316 | ,¶ms[1] | |
4317 | ,c | |
4318 | ,params[0] | |
4319 | ,params[6]*alpha+shift); | |
4320 | track->PropagateTo(params[0]-5.0); | |
69b55c55 | 4321 | track->ResetCovariance(1); |
4551ea7c | 4322 | |
4323 | Int_t rc = FollowBackProlongation(*track); | |
4324 | if (rc < 30) { | |
69b55c55 | 4325 | delete track; |
4551ea7c | 4326 | track = 0; |
4327 | } | |
4328 | else { | |
69b55c55 | 4329 | track->CookdEdx(); |
4330 | CookdEdxTimBin(*track); | |
4551ea7c | 4331 | CookLabel(track,0.9); |
69b55c55 | 4332 | } |
69b55c55 | 4333 | |
75bd7f81 | 4334 | return track; |
7e448bcc | 4335 | } |
4336 | ||
4337 | ////////////////////////////////////////////////////////////////////////////////////////// | |
69b55c55 | 4338 | |
7e448bcc | 4339 | void AliTRDtracker::InitLogHists() { |
4340 | ||
4341 | fHBackfit = new TH1D("logTRD_backfit", "", 40, -0.5, 39.5); | |
4342 | fHRefit = new TH1D("logTRD_refit", "", 40, -0.5, 39.5); | |
4343 | fHClSearch = new TH1D("logTRD_clSearch", "", 60, -0.5, 59.5); | |
4344 | ||
4345 | fHX = new TH1D("logTRD_X", ";x (cm)", 200, 50, 400); | |
4346 | fHNCl = new TH1D("logTRD_ncl", "", 40, -0.5, 39.5); | |
4347 | fHNClTrack = new TH1D("logTRD_nclTrack", "", 180, -0.5, 179.5); | |
4348 | ||
4349 | fHMinYPos = new TH1D("logTRD_minYPos", ";#delta Y (cm)", 400, -6, 6); | |
4350 | fHMinYNeg = new TH1D("logTRD_minYNeg", ";#delta Y (cm)", 400, -6, 6); | |
4351 | fHMinZ = new TH1D("logTRD_minZ", ";#delta Z (cm)", 400, -20, 20); | |
4352 | fHMinD = new TH2D("logTRD_minD", ";#delta Y (cm);#delta Z (cm)", 100, -6, 6, 100, -50, 50); | |
4353 | ||
4354 | fHDeltaX = new TH1D("logTRD_deltaX", ";#delta X (cm)", 100, -5, 5); | |
4355 | fHXCl = new TH1D("logTRD_xCl", ";cluster x position (cm)", 1000, 280, 380); | |
4356 | ||
4357 | const char *nameFindCl[4] = {"logTRD_clY", "logTRD_clZ", "logTRD_clB", "logTRD_clG"}; | |
4358 | ||
4359 | for(int i=0; i<4; i++) { | |
4360 | fHFindCl[i] = new TH1D(nameFindCl[i], "", 30, -0.5, 29.5); | |
4361 | } | |
69b55c55 | 4362 | } |
7e448bcc | 4363 | |
4364 | ////////////////////////////////////////////////////////////////////////////////////////// | |
4365 | ||
4366 | void AliTRDtracker::SaveLogHists() { | |
4367 | ||
4368 | TDirectory *sav = gDirectory; | |
4369 | TFile *logFile = 0; | |
4370 | ||
4371 | TSeqCollection *col = gROOT->GetListOfFiles(); | |
4372 | int N = col->GetEntries(); | |
4373 | for(int i=0; i<N; i++) { | |
4374 | logFile = (TFile*)col->At(i); | |
4375 | if (strstr(logFile->GetName(), "AliESDs.root")) break; | |
4376 | } | |
4377 | ||
4378 | logFile->cd(); | |
4379 | fHBackfit->Write(fHBackfit->GetName(), TObject::kOverwrite); | |
4380 | fHRefit->Write(fHRefit->GetName(), TObject::kOverwrite); | |
4381 | fHClSearch->Write(fHClSearch->GetName(), TObject::kOverwrite); | |
4382 | fHX->Write(fHX->GetName(), TObject::kOverwrite); | |
4383 | fHNCl->Write(fHNCl->GetName(), TObject::kOverwrite); | |
4384 | fHNClTrack->Write(fHNClTrack->GetName(), TObject::kOverwrite); | |
4385 | ||
4386 | fHMinYPos->Write(fHMinYPos->GetName(), TObject::kOverwrite); | |
4387 | fHMinYNeg->Write(fHMinYNeg->GetName(), TObject::kOverwrite); | |
4388 | fHMinD->Write(fHMinD->GetName(), TObject::kOverwrite); | |
4389 | fHMinZ->Write(fHMinZ->GetName(), TObject::kOverwrite); | |
4390 | ||
4391 | fHDeltaX->Write(fHDeltaX->GetName(), TObject::kOverwrite); | |
4392 | fHXCl->Write(fHXCl->GetName(), TObject::kOverwrite); | |
4393 | ||
4394 | ||
4395 | for(int i=0; i<4; i++) | |
4396 | fHFindCl[i]->Write(fHFindCl[i]->GetName(), TObject::kOverwrite); | |
4397 | ||
4398 | logFile->Flush(); | |
4399 | ||
4400 | sav->cd(); | |
4401 | } | |
4402 | ||
4403 | ////////////////////////////////////////////////////////////////////////////////////////// |