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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 | ||
a2cb5b3d | 29 | #include <Riostream.h> |
46d29e70 | 30 | #include <TFile.h> |
46d29e70 | 31 | #include <TBranch.h> |
5443e65e | 32 | #include <TTree.h> |
c630aafd | 33 | #include <TObjArray.h> |
4551ea7c | 34 | #include <TTreeStream.h> |
35 | #include <TGraph.h> | |
36 | #include <TLinearFitter.h> | |
37 | ||
38 | #include "AliESD.h" | |
39 | #include "AliAlignObj.h" | |
40 | #include "AliRieman.h" | |
41 | #include "AliTrackPointArray.h" | |
46d29e70 | 42 | |
46d29e70 | 43 | #include "AliTRDgeometry.h" |
a5cadd36 | 44 | #include "AliTRDpadPlane.h" |
0b2318ec | 45 | #include "AliTRDgeometry.h" |
46d29e70 | 46 | #include "AliTRDcluster.h" |
47 | #include "AliTRDtrack.h" | |
75bd7f81 | 48 | #include "AliTRDseed.h" |
3551db50 | 49 | #include "AliTRDcalibDB.h" |
50 | #include "AliTRDCommonParam.h" | |
46d29e70 | 51 | #include "AliTRDtracker.h" |
7b580082 | 52 | #include "AliTRDReconstructor.h" |
77566f2a | 53 | #include "AliTRDCalibra.h" |
46d29e70 | 54 | |
55 | ClassImp(AliTRDtracker) | |
bbf92647 | 56 | |
4551ea7c | 57 | const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; |
58 | const Float_t AliTRDtracker::fgkLabelFraction = 0.8; | |
59 | const Double_t AliTRDtracker::fgkMaxChi2 = 12.0; | |
60 | const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // Corresponds to tan = 3 | |
61 | const Double_t AliTRDtracker::fgkMaxStep = 2.0; // Maximal step size in propagation | |
7ad19338 | 62 | |
75bd7f81 | 63 | //_____________________________________________________________________________ |
4551ea7c | 64 | AliTRDtracker::AliTRDtracker() |
65 | :AliTracker() | |
66 | ,fGeom(0) | |
67 | ,fNclusters(0) | |
68 | ,fClusters(0) | |
69 | ,fNseeds(0) | |
70 | ,fSeeds(0) | |
71 | ,fNtracks(0) | |
72 | ,fTracks(0) | |
73 | ,fTimeBinsPerPlane(0) | |
74 | ,fAddTRDseeds(kFALSE) | |
75 | ,fNoTilt(kFALSE) | |
76 | ,fDebugStreamer(0) | |
89f05372 | 77 | { |
75bd7f81 | 78 | // |
b7a0917f | 79 | // Default constructor |
75bd7f81 | 80 | // |
b7a0917f | 81 | |
4551ea7c | 82 | for (Int_t i = 0; i < kTrackingSectors; i++) { |
83 | fTrSec[i] = 0; | |
84 | } | |
85 | for (Int_t j = 0; j < 5; j++) { | |
86 | for (Int_t k = 0; k < 18; k++) { | |
87 | fHoles[j][k] = kFALSE; | |
88 | } | |
89 | } | |
75bd7f81 | 90 | |
89f05372 | 91 | } |
75bd7f81 | 92 | |
93 | //_____________________________________________________________________________ | |
6c94f330 | 94 | AliTRDtracker::AliTRDtracker(const AliTRDtracker &t) |
95 | :AliTracker(t) | |
ad670fba | 96 | ,fGeom(0) |
97 | ,fNclusters(0) | |
98 | ,fClusters(0) | |
99 | ,fNseeds(0) | |
100 | ,fSeeds(0) | |
101 | ,fNtracks(0) | |
102 | ,fTracks(0) | |
103 | ,fTimeBinsPerPlane(0) | |
104 | ,fAddTRDseeds(kFALSE) | |
105 | ,fNoTilt(kFALSE) | |
106 | ,fDebugStreamer(0) | |
6c94f330 | 107 | { |
ad670fba | 108 | // |
109 | // Copy constructor | |
110 | // | |
ad670fba | 111 | } |
112 | ||
113 | //_____________________________________________________________________________ | |
114 | AliTRDtracker::AliTRDtracker(const TFile *geomfile) | |
115 | :AliTracker() | |
116 | ,fGeom(0) | |
117 | ,fNclusters(0) | |
118 | ,fClusters(new TObjArray(2000)) | |
119 | ,fNseeds(0) | |
120 | ,fSeeds(new TObjArray(2000)) | |
121 | ,fNtracks(0) | |
122 | ,fTracks(new TObjArray(1000)) | |
123 | ,fTimeBinsPerPlane(0) | |
124 | ,fAddTRDseeds(kFALSE) | |
125 | ,fNoTilt(kFALSE) | |
126 | ,fDebugStreamer(0) | |
46d29e70 | 127 | { |
5443e65e | 128 | // |
129 | // Main constructor | |
130 | // | |
b8dc2353 | 131 | |
4551ea7c | 132 | TDirectory *savedir = gDirectory; |
133 | TFile *in = (TFile *) geomfile; | |
134 | ||
5443e65e | 135 | if (!in->IsOpen()) { |
4551ea7c | 136 | AliWarning("geometry file is not open!\n"); |
137 | AliWarning("FULL TRD geometry and DEFAULT TRD parameter will be used\n"); | |
5443e65e | 138 | } |
139 | else { | |
140 | in->cd(); | |
4551ea7c | 141 | fGeom = (AliTRDgeometry *) in->Get("TRDgeometry"); |
5443e65e | 142 | } |
46d29e70 | 143 | |
4551ea7c | 144 | if (!fGeom) { |
145 | AliWarning("Cannot find TRD geometry!\n"); | |
0b2318ec | 146 | fGeom = new AliTRDgeometry(); |
c630aafd | 147 | } |
c6f438c0 | 148 | fGeom->ReadGeoMatrices(); |
c630aafd | 149 | |
5443e65e | 150 | savedir->cd(); |
46d29e70 | 151 | |
4551ea7c | 152 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
153 | Int_t trS = CookSectorIndex(geomS); | |
154 | fTrSec[trS] = new AliTRDtrackingSector(fGeom,geomS); | |
155 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
156 | fHoles[icham][trS] = fGeom->IsHole(0,icham,geomS); | |
3c625a9b | 157 | } |
5443e65e | 158 | } |
4551ea7c | 159 | |
3551db50 | 160 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); |
7ad19338 | 161 | Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle()); |
4551ea7c | 162 | if (tiltAngle < 0.1) { |
b8dc2353 | 163 | fNoTilt = kTRUE; |
164 | } | |
165 | ||
59393e34 | 166 | fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
46d29e70 | 167 | |
4551ea7c | 168 | fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); |
0a29d0f1 | 169 | |
9c9d2487 | 170 | savedir->cd(); |
75bd7f81 | 171 | |
5443e65e | 172 | } |
46d29e70 | 173 | |
75bd7f81 | 174 | //_____________________________________________________________________________ |
5443e65e | 175 | AliTRDtracker::~AliTRDtracker() |
46d29e70 | 176 | { |
029cd327 | 177 | // |
178 | // Destructor of AliTRDtracker | |
179 | // | |
180 | ||
89f05372 | 181 | if (fClusters) { |
182 | fClusters->Delete(); | |
183 | delete fClusters; | |
184 | } | |
4551ea7c | 185 | |
89f05372 | 186 | if (fTracks) { |
187 | fTracks->Delete(); | |
188 | delete fTracks; | |
189 | } | |
4551ea7c | 190 | |
89f05372 | 191 | if (fSeeds) { |
192 | fSeeds->Delete(); | |
193 | delete fSeeds; | |
194 | } | |
4551ea7c | 195 | |
5443e65e | 196 | delete fGeom; |
0a29d0f1 | 197 | |
4551ea7c | 198 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
029cd327 | 199 | delete fTrSec[geomS]; |
5443e65e | 200 | } |
4551ea7c | 201 | |
7ad19338 | 202 | if (fDebugStreamer) { |
7ad19338 | 203 | delete fDebugStreamer; |
204 | } | |
9c9d2487 | 205 | |
75bd7f81 | 206 | } |
59393e34 | 207 | |
75bd7f81 | 208 | //_____________________________________________________________________________ |
209 | Int_t AliTRDtracker::LocalToGlobalID(Int_t lid) | |
210 | { | |
59393e34 | 211 | // |
75bd7f81 | 212 | // Transform internal TRD ID to global detector ID |
59393e34 | 213 | // |
75bd7f81 | 214 | |
4551ea7c | 215 | Int_t isector = fGeom->GetSector(lid); |
216 | Int_t ichamber = fGeom->GetChamber(lid); | |
217 | Int_t iplan = fGeom->GetPlane(lid); | |
218 | ||
59393e34 | 219 | AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; |
220 | switch (iplan) { | |
221 | case 0: | |
222 | iLayer = AliAlignObj::kTRD1; | |
223 | break; | |
224 | case 1: | |
225 | iLayer = AliAlignObj::kTRD2; | |
226 | break; | |
227 | case 2: | |
228 | iLayer = AliAlignObj::kTRD3; | |
229 | break; | |
230 | case 3: | |
231 | iLayer = AliAlignObj::kTRD4; | |
232 | break; | |
233 | case 4: | |
234 | iLayer = AliAlignObj::kTRD5; | |
235 | break; | |
236 | case 5: | |
237 | iLayer = AliAlignObj::kTRD6; | |
238 | break; | |
239 | }; | |
4551ea7c | 240 | |
241 | Int_t modId = isector * fGeom->Ncham() + ichamber; | |
59393e34 | 242 | UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); |
75bd7f81 | 243 | |
59393e34 | 244 | return volid; |
75bd7f81 | 245 | |
59393e34 | 246 | } |
247 | ||
75bd7f81 | 248 | //_____________________________________________________________________________ |
249 | Int_t AliTRDtracker::GlobalToLocalID(Int_t gid) | |
250 | { | |
59393e34 | 251 | // |
75bd7f81 | 252 | // Transform global detector ID to local detector ID |
59393e34 | 253 | // |
75bd7f81 | 254 | |
4551ea7c | 255 | Int_t modId = 0; |
256 | AliAlignObj::ELayerID layerId = AliAlignObj::VolUIDToLayer(gid,modId); | |
257 | ||
258 | Int_t isector = modId / fGeom->Ncham(); | |
259 | Int_t ichamber = modId % fGeom->Ncham(); | |
260 | Int_t iLayer = -1; | |
261 | ||
59393e34 | 262 | switch (layerId) { |
263 | case AliAlignObj::kTRD1: | |
6c94f330 | 264 | iLayer = 0; |
59393e34 | 265 | break; |
266 | case AliAlignObj::kTRD2: | |
6c94f330 | 267 | iLayer = 1; |
59393e34 | 268 | break; |
269 | case AliAlignObj::kTRD3: | |
6c94f330 | 270 | iLayer = 2; |
59393e34 | 271 | break; |
272 | case AliAlignObj::kTRD4: | |
6c94f330 | 273 | iLayer = 3; |
59393e34 | 274 | break; |
275 | case AliAlignObj::kTRD5: | |
6c94f330 | 276 | iLayer = 4; |
59393e34 | 277 | break; |
278 | case AliAlignObj::kTRD6: | |
6c94f330 | 279 | iLayer = 5; |
59393e34 | 280 | break; |
281 | default: | |
6c94f330 | 282 | iLayer =-1; |
59393e34 | 283 | } |
4551ea7c | 284 | |
285 | if (iLayer < 0) { | |
286 | return -1; | |
287 | } | |
288 | ||
59393e34 | 289 | Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector); |
75bd7f81 | 290 | |
59393e34 | 291 | return lid; |
59393e34 | 292 | |
75bd7f81 | 293 | } |
59393e34 | 294 | |
75bd7f81 | 295 | //_____________________________________________________________________________ |
4551ea7c | 296 | Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 297 | { |
59393e34 | 298 | // |
75bd7f81 | 299 | // Transform something ... whatever ... |
c6f438c0 | 300 | // |
75bd7f81 | 301 | |
33744e5d | 302 | // Magic constants for geo manager transformation |
4551ea7c | 303 | const Double_t kX0shift = 2.52; |
304 | const Double_t kX0shift5 = 3.05; | |
33744e5d | 305 | |
6c94f330 | 306 | // |
33744e5d | 307 | // Apply alignment and calibration to transform cluster |
6c94f330 | 308 | // |
309 | Int_t detector = cluster->GetDetector(); | |
4551ea7c | 310 | Int_t plane = fGeom->GetPlane(cluster->GetDetector()); |
311 | Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
312 | Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
313 | ||
314 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
315 | Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.0); // Drift distance | |
c6f438c0 | 316 | |
59393e34 | 317 | // |
59393e34 | 318 | // ExB correction |
319 | // | |
320 | Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
4551ea7c | 321 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift); |
322 | ||
323 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); | |
324 | AliTRDpadPlane *padPlane = commonParam->GetPadPlane(plane,chamber); | |
325 | Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); | |
326 | Double_t localPos[3]; | |
327 | Double_t localPosTracker[3]; | |
c6f438c0 | 328 | localPos[0] = -cluster->GetX(); |
4551ea7c | 329 | localPos[1] = cluster->GetY() - driftX * exB; |
330 | localPos[2] = cluster->GetZ() - zshiftIdeal; | |
331 | ||
c6f438c0 | 332 | cluster->SetY(cluster->GetY() - driftX*exB); |
333 | Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
334 | cluster->SetX(xplane- cluster->GetX()); | |
4551ea7c | 335 | |
336 | TGeoHMatrix *matrix = fGeom->GetCorrectionMatrix(cluster->GetDetector()); | |
337 | if (!matrix) { | |
338 | // No matrix found - if somebody used geometry with holes | |
c6f438c0 | 339 | AliError("Invalid Geometry - Default Geometry used\n"); |
340 | return kTRUE; | |
341 | } | |
4551ea7c | 342 | matrix->LocalToMaster(localPos,localPosTracker); |
343 | ||
344 | if (AliTRDReconstructor::StreamLevel() > 1) { | |
345 | (* fDebugStreamer) << "Transform" | |
346 | << "Cl.=" << cluster | |
347 | << "matrix.=" << matrix | |
348 | << "Detector=" << detector | |
349 | << "Sector=" << sector | |
350 | << "Plane=" << plane | |
351 | << "Chamber=" << chamber | |
352 | << "lx0=" << localPosTracker[0] | |
353 | << "ly0=" << localPosTracker[1] | |
354 | << "lz0=" << localPosTracker[2] | |
355 | << "\n"; | |
c6f438c0 | 356 | } |
4551ea7c | 357 | |
358 | if (plane == 5) { | |
c6f438c0 | 359 | cluster->SetX(localPosTracker[0]+kX0shift5); |
4551ea7c | 360 | } |
361 | else { | |
c6f438c0 | 362 | cluster->SetX(localPosTracker[0]+kX0shift); |
4551ea7c | 363 | } |
364 | ||
c6f438c0 | 365 | cluster->SetY(localPosTracker[1]); |
366 | cluster->SetZ(localPosTracker[2]); | |
75bd7f81 | 367 | |
59393e34 | 368 | return kTRUE; |
75bd7f81 | 369 | |
59393e34 | 370 | } |
371 | ||
75bd7f81 | 372 | //_____________________________________________________________________________ |
4551ea7c | 373 | // Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 374 | //{ |
c6f438c0 | 375 | // // |
4551ea7c | 376 | // // Is this still needed ???? |
c6f438c0 | 377 | // // |
378 | // const Double_t kDriftCorrection = 1.01; // drift coeficient correction | |
379 | // const Double_t kTime0Cor = 0.32; // time0 correction | |
380 | // // | |
381 | // const Double_t kX0shift = 2.52; | |
382 | // const Double_t kX0shift5 = 3.05; | |
383 | ||
384 | // // | |
385 | // // apply alignment and calibration to transform cluster | |
386 | // // | |
387 | // // | |
388 | // Int_t detector = cluster->GetDetector(); | |
389 | // Int_t plane = fGeom->GetPlane(cluster->GetDetector()); | |
390 | // Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
391 | // Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
392 | ||
393 | // Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
394 | // Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance | |
395 | // // | |
396 | // // ExB correction | |
397 | // // | |
398 | // Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
399 | // Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift); | |
400 | // // | |
401 | ||
402 | // AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance(); | |
403 | // AliTRDpadPlane * padPlane = commonParam->GetPadPlane(plane,chamber); | |
404 | // Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); | |
405 | // Double_t localPos[3], globalPos[3], localPosTracker[3], localPosTracker2[3]; | |
406 | // localPos[2] = -cluster->GetX(); | |
407 | // localPos[0] = cluster->GetY() - driftX*exB; | |
408 | // localPos[1] = cluster->GetZ() -zshiftIdeal; | |
409 | // TGeoHMatrix * matrix = fGeom->GetGeoMatrix(cluster->GetDetector()); | |
410 | // matrix->LocalToMaster(localPos, globalPos); | |
411 | ||
412 | // Double_t sectorAngle = 20.*(sector%18)+10; | |
413 | // TGeoHMatrix rotSector; | |
414 | // rotSector.RotateZ(sectorAngle); | |
415 | // rotSector.LocalToMaster(globalPos, localPosTracker); | |
416 | // // | |
417 | // // | |
418 | // TGeoHMatrix matrix2(*matrix); | |
419 | // matrix2.MultiplyLeft(&rotSector); | |
420 | // matrix2.LocalToMaster(localPos,localPosTracker2); | |
421 | // // | |
422 | // // | |
423 | // // | |
424 | // cluster->SetY(cluster->GetY() - driftX*exB); | |
425 | // Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
426 | // cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor)); | |
427 | // (*fDebugStreamer)<<"Transform"<< | |
428 | // "Cl.="<<cluster<< | |
429 | // "matrix.="<<matrix<< | |
430 | // "matrix2.="<<&matrix2<< | |
431 | // "Detector="<<detector<< | |
432 | // "Sector="<<sector<< | |
433 | // "Plane="<<plane<< | |
434 | // "Chamber="<<chamber<< | |
435 | // "lx0="<<localPosTracker[0]<< | |
436 | // "ly0="<<localPosTracker[1]<< | |
437 | // "lz0="<<localPosTracker[2]<< | |
438 | // "lx2="<<localPosTracker2[0]<< | |
439 | // "ly2="<<localPosTracker2[1]<< | |
440 | // "lz2="<<localPosTracker2[2]<< | |
441 | // "\n"; | |
442 | // // | |
443 | // if (plane==5) | |
444 | // cluster->SetX(localPosTracker[0]+kX0shift5); | |
445 | // else | |
446 | // cluster->SetX(localPosTracker[0]+kX0shift); | |
447 | ||
448 | // cluster->SetY(localPosTracker[1]); | |
449 | // cluster->SetZ(localPosTracker[2]); | |
450 | // return kTRUE; | |
451 | // } | |
452 | ||
75bd7f81 | 453 | //_____________________________________________________________________________ |
454 | Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) | |
455 | { | |
9c9d2487 | 456 | // |
457 | // Rotates the track when necessary | |
458 | // | |
459 | ||
460 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4551ea7c | 461 | Double_t y = track->GetY(); |
462 | Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); | |
9c9d2487 | 463 | |
4551ea7c | 464 | // Is this still needed ???? |
c630aafd | 465 | //Int_t ns = AliTRDgeometry::kNsect; |
9c9d2487 | 466 | //Int_t s=Int_t(track->GetAlpha()/alpha)%ns; |
467 | ||
4551ea7c | 468 | if (y > ymax) { |
9c9d2487 | 469 | //s = (s+1) % ns; |
4551ea7c | 470 | if (!track->Rotate( alpha)) { |
471 | return kFALSE; | |
472 | } | |
473 | } | |
474 | else if (y < -ymax) { | |
9c9d2487 | 475 | //s = (s-1+ns) % ns; |
4551ea7c | 476 | if (!track->Rotate(-alpha)) { |
477 | return kFALSE; | |
478 | } | |
9c9d2487 | 479 | } |
480 | ||
481 | return kTRUE; | |
9c9d2487 | 482 | |
75bd7f81 | 483 | } |
46e2d86c | 484 | |
75bd7f81 | 485 | //_____________________________________________________________________________ |
486 | AliTRDcluster *AliTRDtracker::GetCluster(AliTRDtrack *track, Int_t plane | |
487 | , Int_t timebin, UInt_t &index) | |
488 | { | |
46e2d86c | 489 | // |
75bd7f81 | 490 | // Try to find cluster in the backup list |
46e2d86c | 491 | // |
75bd7f81 | 492 | |
4551ea7c | 493 | AliTRDcluster *cl =0; |
6c94f330 | 494 | Int_t *indexes = track->GetBackupIndexes(); |
4551ea7c | 495 | |
496 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
497 | if (indexes[i] == 0) { | |
498 | break; | |
499 | } | |
500 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
501 | if (!cli) { | |
502 | break; | |
503 | } | |
504 | if (cli->GetLocalTimeBin() != timebin) { | |
505 | continue; | |
506 | } | |
46e2d86c | 507 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 508 | if (iplane == plane) { |
509 | cl = cli; | |
7ad19338 | 510 | index = indexes[i]; |
46e2d86c | 511 | break; |
512 | } | |
513 | } | |
75bd7f81 | 514 | |
46e2d86c | 515 | return cl; |
46e2d86c | 516 | |
75bd7f81 | 517 | } |
3c625a9b | 518 | |
75bd7f81 | 519 | //_____________________________________________________________________________ |
4551ea7c | 520 | Int_t AliTRDtracker::GetLastPlane(AliTRDtrack *track) |
75bd7f81 | 521 | { |
3c625a9b | 522 | // |
75bd7f81 | 523 | // Return last updated plane |
524 | // | |
525 | ||
4551ea7c | 526 | Int_t lastplane = 0; |
527 | Int_t *indexes = track->GetBackupIndexes(); | |
528 | ||
529 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
530 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
531 | if (!cli) { | |
532 | break; | |
533 | } | |
3c625a9b | 534 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 535 | if (iplane > lastplane) { |
3c625a9b | 536 | lastplane = iplane; |
537 | } | |
538 | } | |
75bd7f81 | 539 | |
3c625a9b | 540 | return lastplane; |
75bd7f81 | 541 | |
3c625a9b | 542 | } |
75bd7f81 | 543 | |
544 | //_____________________________________________________________________________ | |
4551ea7c | 545 | Int_t AliTRDtracker::Clusters2Tracks(AliESD *event) |
c630aafd | 546 | { |
547 | // | |
548 | // Finds tracks within the TRD. The ESD event is expected to contain seeds | |
549 | // at the outer part of the TRD. The seeds | |
550 | // are found within the TRD if fAddTRDseeds is TRUE. | |
551 | // The tracks are propagated to the innermost time bin | |
552 | // of the TRD and the ESD event is updated | |
553 | // | |
554 | ||
4551ea7c | 555 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
029cd327 | 556 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 557 | Int_t nseed = 0; |
558 | Int_t found = 0; | |
559 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
c630aafd | 560 | |
561 | Int_t n = event->GetNumberOfTracks(); | |
4551ea7c | 562 | for (Int_t i = 0; i < n; i++) { |
563 | ||
564 | AliESDtrack *seed = event->GetTrack(i); | |
565 | ULong_t status = seed->GetStatus(); | |
566 | if ((status & AliESDtrack::kTRDout) == 0) { | |
567 | continue; | |
568 | } | |
569 | if ((status & AliESDtrack::kTRDin) != 0) { | |
570 | continue; | |
571 | } | |
c630aafd | 572 | nseed++; |
7ad19338 | 573 | |
4551ea7c | 574 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); |
46e2d86c | 575 | //seed2->ResetCovariance(); |
4551ea7c | 576 | AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); |
577 | AliTRDtrack &t = *pt; | |
7b580082 | 578 | FollowProlongation(t); |
c630aafd | 579 | if (t.GetNumberOfClusters() >= foundMin) { |
580 | UseClusters(&t); | |
4551ea7c | 581 | CookLabel(pt,1 - fgkLabelFraction); |
582 | //t.CookdEdx(); | |
c630aafd | 583 | } |
584 | found++; | |
c630aafd | 585 | |
4551ea7c | 586 | Double_t xTPC = 250.0; |
59393e34 | 587 | if (PropagateToX(t,xTPC,fgkMaxStep)) { |
c630aafd | 588 | seed->UpdateTrackParams(pt, AliESDtrack::kTRDin); |
589 | } | |
590 | delete seed2; | |
591 | delete pt; | |
4551ea7c | 592 | |
593 | } | |
c630aafd | 594 | |
33744e5d | 595 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
596 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
597 | AliInfo(Form("Total number of found tracks: %d",found)); | |
c630aafd | 598 | |
599 | return 0; | |
75bd7f81 | 600 | |
c630aafd | 601 | } |
5443e65e | 602 | |
c630aafd | 603 | //_____________________________________________________________________________ |
4551ea7c | 604 | Int_t AliTRDtracker::PropagateBack(AliESD *event) |
75bd7f81 | 605 | { |
c630aafd | 606 | // |
607 | // Gets seeds from ESD event. The seeds are AliTPCtrack's found and | |
608 | // backpropagated by the TPC tracker. Each seed is first propagated | |
609 | // to the TRD, and then its prolongation is searched in the TRD. | |
610 | // If sufficiently long continuation of the track is found in the TRD | |
611 | // the track is updated, otherwise it's stored as originaly defined | |
612 | // by the TPC tracker. | |
613 | // | |
614 | ||
4551ea7c | 615 | Int_t found = 0; |
616 | Float_t foundMin = 20.0; | |
617 | Int_t n = event->GetNumberOfTracks(); | |
618 | ||
619 | // Sort tracks | |
620 | Float_t *quality = new Float_t[n]; | |
621 | Int_t *index = new Int_t[n]; | |
622 | for (Int_t i = 0; i < n; i++) { | |
623 | AliESDtrack *seed = event->GetTrack(i); | |
4f1c04d3 | 624 | Double_t covariance[15]; |
625 | seed->GetExternalCovariance(covariance); | |
626 | quality[i] = covariance[0]+covariance[2]; | |
627 | } | |
628 | TMath::Sort(n,quality,index,kFALSE); | |
4f1c04d3 | 629 | |
4551ea7c | 630 | for (Int_t i = 0; i < n; i++) { |
631 | ||
632 | //AliESDtrack *seed = event->GetTrack(i); | |
633 | AliESDtrack *seed = event->GetTrack(index[i]); | |
c630aafd | 634 | |
4551ea7c | 635 | ULong_t status = seed->GetStatus(); |
636 | if ((status & AliESDtrack::kTPCout) == 0) { | |
637 | continue; | |
638 | } | |
639 | if ((status & AliESDtrack::kTRDout) != 0) { | |
640 | continue; | |
641 | } | |
642 | ||
643 | Int_t lbl = seed->GetLabel(); | |
c630aafd | 644 | AliTRDtrack *track = new AliTRDtrack(*seed); |
645 | track->SetSeedLabel(lbl); | |
4551ea7c | 646 | seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup |
c630aafd | 647 | fNseeds++; |
4551ea7c | 648 | Float_t p4 = track->GetC(); |
649 | ||
f6625211 | 650 | Int_t expectedClr = FollowBackProlongation(*track); |
4551ea7c | 651 | if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) || |
652 | (TMath::Abs(track->GetPt()) > 0.8)) { | |
653 | ||
4f1c04d3 | 654 | // |
4551ea7c | 655 | // Make backup for back propagation |
4f1c04d3 | 656 | // |
4551ea7c | 657 | |
4f1c04d3 | 658 | Int_t foundClr = track->GetNumberOfClusters(); |
659 | if (foundClr >= foundMin) { | |
660 | track->CookdEdx(); | |
8979685e | 661 | CookdEdxTimBin(*track); |
4551ea7c | 662 | CookLabel(track,1 - fgkLabelFraction); |
663 | if (track->GetBackupTrack()) { | |
664 | UseClusters(track->GetBackupTrack()); | |
665 | } | |
666 | ||
667 | // Sign only gold tracks | |
668 | if (track->GetChi2() / track->GetNumberOfClusters() < 4) { | |
669 | if ((seed->GetKinkIndex(0) == 0) && | |
670 | (TMath::Abs(track->GetPt()) < 1.5)) { | |
671 | UseClusters(track); | |
672 | } | |
4f1c04d3 | 673 | } |
674 | Bool_t isGold = kFALSE; | |
675 | ||
4551ea7c | 676 | // Full gold track |
677 | if (track->GetChi2() / track->GetNumberOfClusters() < 5) { | |
678 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
679 | if (track->GetBackupTrack()) { | |
680 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
681 | } | |
4f1c04d3 | 682 | isGold = kTRUE; |
683 | } | |
4551ea7c | 684 | |
685 | // Almost gold track | |
686 | if ((!isGold) && | |
687 | (track->GetNCross() == 0) && | |
688 | (track->GetChi2() / track->GetNumberOfClusters() < 7)) { | |
689 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
690 | if (track->GetBackupTrack()) { | |
691 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
692 | } | |
f4e9508c | 693 | isGold = kTRUE; |
694 | } | |
4551ea7c | 695 | |
696 | if ((!isGold) && | |
697 | (track->GetBackupTrack())) { | |
698 | if ((track->GetBackupTrack()->GetNumberOfClusters() > foundMin) && | |
699 | ((track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1)) < 7)) { | |
700 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
4f1c04d3 | 701 | isGold = kTRUE; |
702 | } | |
703 | } | |
4551ea7c | 704 | |
27eaf44b | 705 | if ((track->StatusForTOF() > 0) && |
706 | (track->GetNCross() == 0) && | |
707 | (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) { | |
6c94f330 | 708 | //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); |
7ad19338 | 709 | } |
4551ea7c | 710 | |
16d9fbba | 711 | } |
4551ea7c | 712 | |
c630aafd | 713 | } |
4551ea7c | 714 | |
8979685e | 715 | // Debug part of tracking |
4551ea7c | 716 | TTreeSRedirector &cstream = *fDebugStreamer; |
8979685e | 717 | Int_t eventNr = event->GetEventNumber(); |
4551ea7c | 718 | if (AliTRDReconstructor::StreamLevel() > 0) { |
719 | if (track->GetBackupTrack()) { | |
720 | cstream << "Tracks" | |
721 | << "EventNr=" << eventNr | |
722 | << "ESD.=" << seed | |
723 | << "trd.=" << track | |
724 | << "trdback.=" << track->GetBackupTrack() | |
725 | << "\n"; | |
726 | } | |
727 | else { | |
728 | cstream << "Tracks" | |
729 | << "EventNr=" << eventNr | |
730 | << "ESD.=" << seed | |
731 | << "trd.=" << track | |
732 | << "trdback.=" << track | |
733 | << "\n"; | |
d337ef8d | 734 | } |
8979685e | 735 | } |
4551ea7c | 736 | |
737 | // Propagation to the TOF (I.Belikov) | |
738 | if (track->GetStop() == kFALSE) { | |
4f1c04d3 | 739 | |
4551ea7c | 740 | Double_t xtof = 371.0; |
741 | Double_t c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); | |
742 | if (TMath::Abs(c2) >= 0.99) { | |
c5a8e3df | 743 | delete track; |
744 | continue; | |
745 | } | |
4551ea7c | 746 | Double_t xTOF0 = 370.0; |
59393e34 | 747 | PropagateToX(*track,xTOF0,fgkMaxStep); |
4551ea7c | 748 | |
749 | // Energy losses taken to the account - check one more time | |
750 | c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); | |
751 | if (TMath::Abs(c2) >= 0.99) { | |
4f1c04d3 | 752 | delete track; |
753 | continue; | |
754 | } | |
755 | ||
4551ea7c | 756 | Double_t ymax = xtof * TMath::Tan(0.5 * AliTRDgeometry::GetAlpha()); |
757 | Double_t y; | |
758 | track->GetYAt(xtof,GetBz(),y); | |
759 | if (y > ymax) { | |
760 | if (!track->Rotate( AliTRDgeometry::GetAlpha())) { | |
7ac6fa52 | 761 | delete track; |
7bed16a7 | 762 | continue; |
7ac6fa52 | 763 | } |
4551ea7c | 764 | } |
765 | else if (y < -ymax) { | |
7ac6fa52 | 766 | if (!track->Rotate(-AliTRDgeometry::GetAlpha())) { |
767 | delete track; | |
7bed16a7 | 768 | continue; |
7ac6fa52 | 769 | } |
3c625a9b | 770 | } |
771 | ||
772 | if (track->PropagateTo(xtof)) { | |
4551ea7c | 773 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); |
774 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { | |
775 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 776 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
777 | } | |
778 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 779 | } |
4551ea7c | 780 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
781 | if (track->GetNumberOfClusters() > foundMin) { | |
782 | found++; | |
783 | } | |
3c625a9b | 784 | } |
4551ea7c | 785 | |
786 | } | |
787 | else { | |
788 | ||
789 | if ((track->GetNumberOfClusters() > 15) && | |
790 | (track->GetNumberOfClusters() > 0.5*expectedClr)) { | |
791 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); | |
16d9fbba | 792 | //seed->SetStatus(AliESDtrack::kTRDStop); |
4551ea7c | 793 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
794 | for (Int_t j = 0; j <AliESDtrack::kNSlice; j++) { | |
6d45eaef | 795 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
796 | } | |
797 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 798 | } |
7ad19338 | 799 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
3c625a9b | 800 | found++; |
801 | } | |
4551ea7c | 802 | |
1e9bb598 | 803 | } |
4551ea7c | 804 | |
7ad19338 | 805 | seed->SetTRDQuality(track->StatusForTOF()); |
27eaf44b | 806 | seed->SetTRDBudget(track->GetBudget(0)); |
8979685e | 807 | |
d9b8978b | 808 | delete track; |
c630aafd | 809 | |
810 | } | |
ad670fba | 811 | |
33744e5d | 812 | AliInfo(Form("Number of seeds: %d",fNseeds)); |
813 | AliInfo(Form("Number of back propagated TRD tracks: %d",found)); | |
6c94f330 | 814 | |
33744e5d | 815 | // New seeding |
816 | if (AliTRDReconstructor::SeedingOn()) { | |
4551ea7c | 817 | MakeSeedsMI(3,5,event); |
33744e5d | 818 | } |
819 | ||
820 | fSeeds->Clear(); | |
4551ea7c | 821 | fNseeds = 0; |
7ad19338 | 822 | |
4f1c04d3 | 823 | delete [] index; |
824 | delete [] quality; | |
825 | ||
1e9bb598 | 826 | return 0; |
827 | ||
828 | } | |
829 | ||
830 | //_____________________________________________________________________________ | |
4551ea7c | 831 | Int_t AliTRDtracker::RefitInward(AliESD *event) |
1e9bb598 | 832 | { |
833 | // | |
834 | // Refits tracks within the TRD. The ESD event is expected to contain seeds | |
835 | // at the outer part of the TRD. | |
836 | // The tracks are propagated to the innermost time bin | |
837 | // of the TRD and the ESD event is updated | |
838 | // Origin: Thomas KUHR (Thomas.Kuhr@cern.ch) | |
839 | // | |
840 | ||
4551ea7c | 841 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
1e9bb598 | 842 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 843 | Int_t nseed = 0; |
844 | Int_t found = 0; | |
845 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
4f1c04d3 | 846 | AliTRDtrack seed2; |
6c94f330 | 847 | |
1e9bb598 | 848 | Int_t n = event->GetNumberOfTracks(); |
4551ea7c | 849 | for (Int_t i = 0; i < n; i++) { |
850 | ||
851 | AliESDtrack *seed = event->GetTrack(i); | |
852 | new (&seed2) AliTRDtrack(*seed); | |
853 | if (seed2.GetX() < 270.0) { | |
854 | seed->UpdateTrackParams(&seed2,AliESDtrack::kTRDbackup); // Backup TPC track - only update | |
f4e9508c | 855 | continue; |
856 | } | |
857 | ||
4551ea7c | 858 | ULong_t status = seed->GetStatus(); |
859 | if ((status & AliESDtrack::kTRDout) == 0) { | |
0dd7d129 | 860 | continue; |
861 | } | |
4551ea7c | 862 | if ((status & AliESDtrack::kTRDin) != 0) { |
0dd7d129 | 863 | continue; |
864 | } | |
6c94f330 | 865 | nseed++; |
866 | ||
4551ea7c | 867 | seed2.ResetCovariance(50.0); |
6c94f330 | 868 | |
4f1c04d3 | 869 | AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha()); |
4551ea7c | 870 | Int_t *indexes2 = seed2.GetIndexes(); |
871 | for (Int_t i = 0; i < AliESDtrack::kNPlane;i++) { | |
872 | for (Int_t j = 0; j < AliESDtrack::kNSlice;j++) { | |
6d45eaef | 873 | pt->SetPIDsignals(seed2.GetPIDsignals(i,j),i,j); |
874 | } | |
7ad19338 | 875 | pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i); |
876 | } | |
eab5961e | 877 | |
4551ea7c | 878 | Int_t *indexes3 = pt->GetBackupIndexes(); |
879 | for (Int_t i = 0; i < 200;i++) { | |
880 | if (indexes2[i] == 0) { | |
881 | break; | |
882 | } | |
46e2d86c | 883 | indexes3[i] = indexes2[i]; |
4551ea7c | 884 | } |
885 | ||
46e2d86c | 886 | //AliTRDtrack *pt = seed2; |
4551ea7c | 887 | AliTRDtrack &t = *pt; |
7b580082 | 888 | FollowProlongation(t); |
1e9bb598 | 889 | if (t.GetNumberOfClusters() >= foundMin) { |
4551ea7c | 890 | //UseClusters(&t); |
6c94f330 | 891 | //CookLabel(pt, 1-fgkLabelFraction); |
7ad19338 | 892 | t.CookdEdx(); |
893 | CookdEdxTimBin(t); | |
1e9bb598 | 894 | } |
895 | found++; | |
33744e5d | 896 | |
4551ea7c | 897 | Double_t xTPC = 250.0; |
898 | if (PropagateToX(t,xTPC,fgkMaxStep)) { | |
899 | seed->UpdateTrackParams(pt,AliESDtrack::kTRDrefit); | |
900 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { | |
901 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 902 | seed->SetTRDsignals(pt->GetPIDsignals(i,j),i,j); |
903 | } | |
7ad19338 | 904 | seed->SetTRDTimBin(pt->GetPIDTimBin(i),i); |
905 | } | |
4551ea7c | 906 | } |
907 | else { | |
908 | // If not prolongation to TPC - propagate without update | |
909 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); | |
910 | seed2->ResetCovariance(5.0); | |
911 | AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); | |
7bed16a7 | 912 | delete seed2; |
59393e34 | 913 | if (PropagateToX(*pt2,xTPC,fgkMaxStep)) { |
4551ea7c | 914 | pt2->CookdEdx( ); |
eab5961e | 915 | CookdEdxTimBin(*pt2); |
4551ea7c | 916 | seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit); |
917 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { | |
918 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 919 | seed->SetTRDsignals(pt2->GetPIDsignals(i,j),i,j); |
920 | } | |
7ad19338 | 921 | seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i); |
922 | } | |
eab5961e | 923 | } |
7bed16a7 | 924 | delete pt2; |
4551ea7c | 925 | } |
926 | ||
1e9bb598 | 927 | delete pt; |
4551ea7c | 928 | |
eab5961e | 929 | } |
1e9bb598 | 930 | |
33744e5d | 931 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
932 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
1e9bb598 | 933 | |
c630aafd | 934 | return 0; |
935 | ||
936 | } | |
937 | ||
75bd7f81 | 938 | //_____________________________________________________________________________ |
4551ea7c | 939 | Int_t AliTRDtracker::FollowProlongation(AliTRDtrack &t) |
8979685e | 940 | { |
75bd7f81 | 941 | // |
8979685e | 942 | // Starting from current position on track=t this function tries |
943 | // to extrapolate the track up to timeBin=0 and to confirm prolongation | |
944 | // if a close cluster is found. Returns the number of clusters | |
945 | // expected to be found in sensitive layers | |
946 | // GeoManager used to estimate mean density | |
75bd7f81 | 947 | // |
948 | ||
4551ea7c | 949 | Int_t sector; |
950 | Int_t lastplane = GetLastPlane(&t); | |
3551db50 | 951 | Double_t radLength = 0.0; |
4551ea7c | 952 | Double_t rho = 0.0; |
953 | Int_t expectedNumberOfClusters = 0; | |
954 | ||
955 | for (Int_t iplane = lastplane; iplane >= 0; iplane--) { | |
956 | ||
957 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); | |
958 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
959 | ||
8979685e | 960 | // |
4551ea7c | 961 | // Propagate track close to the plane if neccessary |
7b580082 | 962 | // |
963 | Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX(); | |
4551ea7c | 964 | if (currentx < (-fgkMaxStep + t.GetX())) { |
965 | // Propagate closer to chamber - safety space fgkMaxStep | |
966 | if (!PropagateToX(t,currentx+fgkMaxStep,fgkMaxStep)) { | |
967 | break; | |
968 | } | |
969 | } | |
970 | ||
971 | if (!AdjustSector(&t)) { | |
972 | break; | |
8979685e | 973 | } |
4551ea7c | 974 | |
59393e34 | 975 | // |
4551ea7c | 976 | // Get material budget |
8979685e | 977 | // |
4551ea7c | 978 | Double_t xyz0[3]; |
979 | Double_t xyz1[3]; | |
980 | Double_t param[7]; | |
981 | Double_t x; | |
982 | Double_t y; | |
983 | Double_t z; | |
984 | ||
985 | // Starting global position | |
986 | t.GetXYZ(xyz0); | |
987 | // End global position | |
7b580082 | 988 | x = fTrSec[0]->GetLayer(row0)->GetX(); |
4551ea7c | 989 | if (!t.GetProlongation(x,y,z)) { |
990 | break; | |
991 | } | |
992 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
993 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
994 | xyz1[2] = z; | |
7b580082 | 995 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 996 | rho = param[0]; |
997 | radLength = param[1]; // Get mean propagation parameters | |
998 | ||
8979685e | 999 | // |
4551ea7c | 1000 | // Propagate and update |
8979685e | 1001 | // |
8979685e | 1002 | sector = t.GetSector(); |
4551ea7c | 1003 | //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { |
1004 | for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) { | |
1005 | ||
1006 | Int_t ilayer = GetGlobalTimeBin(0,iplane,itime); | |
8979685e | 1007 | expectedNumberOfClusters++; |
27eaf44b | 1008 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1009 | if (t.GetX() > 345.0) { |
27eaf44b | 1010 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1011 | } |
1012 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
1013 | AliTRDcluster *cl = 0; | |
1014 | UInt_t index = 0; | |
1015 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1016 | x = timeBin.GetX(); |
4551ea7c | 1017 | |
8979685e | 1018 | if (timeBin) { |
4551ea7c | 1019 | |
1020 | AliTRDcluster *cl0 = timeBin[0]; | |
1021 | if (!cl0) { | |
1022 | // No clusters in given time bin | |
1023 | continue; | |
1024 | } | |
1025 | ||
1026 | Int_t plane = fGeom->GetPlane(cl0->GetDetector()); | |
1027 | if (plane > lastplane) { | |
1028 | continue; | |
1029 | } | |
1030 | ||
8979685e | 1031 | Int_t timebin = cl0->GetLocalTimeBin(); |
4551ea7c | 1032 | AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index); |
1033 | ||
8979685e | 1034 | if (cl2) { |
4551ea7c | 1035 | |
1036 | cl = cl2; | |
33744e5d | 1037 | //Double_t h01 = GetTiltFactor(cl); //I.B's fix |
6c94f330 | 1038 | //maxChi2=t.GetPredictedChi2(cl,h01); |
4551ea7c | 1039 | |
7b580082 | 1040 | } |
8979685e | 1041 | if (cl) { |
4551ea7c | 1042 | |
1043 | //if (cl->GetNPads()<5) | |
59393e34 | 1044 | Double_t dxsample = timeBin.GetdX(); |
1045 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1046 | Double_t h01 = GetTiltFactor(cl); |
1047 | Int_t det = cl->GetDetector(); | |
1048 | Int_t plane = fGeom->GetPlane(det); | |
1049 | if (t.GetX() > 345.0) { | |
27eaf44b | 1050 | t.SetNLast(t.GetNLast() + 1); |
1051 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1052 | } |
4551ea7c | 1053 | |
59393e34 | 1054 | Double_t xcluster = cl->GetX(); |
1055 | t.PropagateTo(xcluster,radLength,rho); | |
6c94f330 | 1056 | |
4551ea7c | 1057 | if (!AdjustSector(&t)) { |
1058 | break; //I.B's fix | |
1059 | } | |
1060 | maxChi2 = t.GetPredictedChi2(cl,h01); | |
6c94f330 | 1061 | |
4551ea7c | 1062 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { |
1063 | // ???? | |
7b580082 | 1064 | } |
4551ea7c | 1065 | |
6c94f330 | 1066 | } |
4551ea7c | 1067 | |
8979685e | 1068 | } |
4551ea7c | 1069 | |
6c94f330 | 1070 | } |
4551ea7c | 1071 | |
8979685e | 1072 | } |
8979685e | 1073 | |
75bd7f81 | 1074 | return expectedNumberOfClusters; |
69b55c55 | 1075 | |
75bd7f81 | 1076 | } |
7b580082 | 1077 | |
75bd7f81 | 1078 | //_____________________________________________________________________________ |
4551ea7c | 1079 | Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack &t) |
8979685e | 1080 | { |
75bd7f81 | 1081 | // |
8979685e | 1082 | // Starting from current radial position of track <t> this function |
1083 | // extrapolates the track up to outer timebin and in the sensitive | |
1084 | // layers confirms prolongation if a close cluster is found. | |
1085 | // Returns the number of clusters expected to be found in sensitive layers | |
1086 | // Use GEO manager for material Description | |
75bd7f81 | 1087 | // |
59393e34 | 1088 | |
4551ea7c | 1089 | Int_t sector; |
1090 | Int_t clusters[1000]; | |
6c94f330 | 1091 | Double_t radLength = 0.0; |
4551ea7c | 1092 | Double_t rho = 0.0; |
1093 | Int_t expectedNumberOfClusters = 0; | |
1094 | Float_t ratio0 = 0.0; | |
8979685e | 1095 | AliTRDtracklet tracklet; |
33744e5d | 1096 | |
77566f2a | 1097 | // Calibration fill 2D |
1098 | AliTRDCalibra *calibra = AliTRDCalibra::Instance(); | |
1099 | if (!calibra) { | |
1100 | AliInfo("Could not get Calibra instance\n"); | |
1101 | } | |
8ec526a4 | 1102 | if (calibra->GetMITracking()) { |
1103 | calibra->ResetTrack(); | |
77566f2a | 1104 | } |
1105 | ||
33744e5d | 1106 | for (Int_t i = 0; i < 1000; i++) { |
1107 | clusters[i] = -1; | |
1108 | } | |
1109 | ||
4551ea7c | 1110 | for (Int_t iplane = 0; iplane < AliESDtrack::kNPlane; iplane++) { |
1111 | ||
1112 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); | |
1113 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
1114 | Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX(); | |
1115 | if (currentx < t.GetX()) { | |
1116 | continue; | |
1117 | } | |
1118 | ||
6c94f330 | 1119 | // |
4551ea7c | 1120 | // Propagate closer to chamber if neccessary |
6c94f330 | 1121 | // |
4551ea7c | 1122 | if (currentx > (fgkMaxStep + t.GetX())) { |
1123 | if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) { | |
1124 | break; | |
1125 | } | |
1126 | } | |
1127 | if (!AdjustSector(&t)) { | |
1128 | break; | |
8979685e | 1129 | } |
4551ea7c | 1130 | if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) { |
1131 | break; | |
1132 | } | |
1133 | ||
8979685e | 1134 | // |
4551ea7c | 1135 | // Get material budget inside of chamber |
59393e34 | 1136 | // |
4551ea7c | 1137 | Double_t xyz0[3]; |
1138 | Double_t xyz1[3]; | |
1139 | Double_t param[7]; | |
1140 | Double_t x; | |
1141 | Double_t y; | |
1142 | Double_t z; | |
1143 | // Starting global position | |
1144 | t.GetXYZ(xyz0); | |
1145 | // End global position | |
7b580082 | 1146 | x = fTrSec[0]->GetLayer(rowlast)->GetX(); |
4551ea7c | 1147 | if (!t.GetProlongation(x,y,z)) { |
1148 | break; | |
1149 | } | |
1150 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1151 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1152 | xyz1[2] = z; | |
7b580082 | 1153 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1154 | rho = param[0]; |
1155 | radLength = param[1]; // Get mean propagation parameters | |
1156 | ||
8979685e | 1157 | // |
7b580082 | 1158 | // Find clusters |
8979685e | 1159 | // |
6c94f330 | 1160 | sector = t.GetSector(); |
4551ea7c | 1161 | Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); |
1162 | if (tracklet.GetN() < GetTimeBinsPerPlane()/3) { | |
1163 | continue; | |
1164 | } | |
1165 | ||
8979685e | 1166 | // |
7b580082 | 1167 | // Propagate and update track |
8979685e | 1168 | // |
4551ea7c | 1169 | for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) { |
1170 | ||
1171 | Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); | |
8979685e | 1172 | expectedNumberOfClusters++; |
27eaf44b | 1173 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1174 | if (t.GetX() > 345.0) { |
27eaf44b | 1175 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1176 | } |
1177 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
1178 | AliTRDcluster *cl = 0; | |
1179 | UInt_t index = 0; | |
1180 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1181 | x = timeBin.GetX(); |
4551ea7c | 1182 | |
8979685e | 1183 | if (timeBin) { |
4551ea7c | 1184 | |
1185 | if (clusters[ilayer] > 0) { | |
8979685e | 1186 | index = clusters[ilayer]; |
4551ea7c | 1187 | cl = (AliTRDcluster *)GetCluster(index); |
33744e5d | 1188 | //Double_t h01 = GetTiltFactor(cl); // I.B's fix |
1189 | //maxChi2=t.GetPredictedChi2(cl,h01); // | |
8979685e | 1190 | } |
1191 | ||
1192 | if (cl) { | |
4551ea7c | 1193 | |
1194 | //if (cl->GetNPads() < 5) | |
59393e34 | 1195 | Double_t dxsample = timeBin.GetdX(); |
1196 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1197 | Double_t h01 = GetTiltFactor(cl); |
1198 | Int_t det = cl->GetDetector(); | |
1199 | Int_t plane = fGeom->GetPlane(det); | |
1200 | if (t.GetX() > 345.0) { | |
27eaf44b | 1201 | t.SetNLast(t.GetNLast() + 1); |
1202 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1203 | } |
59393e34 | 1204 | Double_t xcluster = cl->GetX(); |
1205 | t.PropagateTo(xcluster,radLength,rho); | |
4551ea7c | 1206 | maxChi2 = t.GetPredictedChi2(cl,h01); |
6c94f330 | 1207 | |
4551ea7c | 1208 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { |
1209 | if (!t.Update(cl,maxChi2,index,h01)) { | |
1210 | // ???? | |
8979685e | 1211 | } |
1212 | } | |
4551ea7c | 1213 | |
8ec526a4 | 1214 | if (calibra->GetMITracking()) { |
77566f2a | 1215 | calibra->UpdateHistograms(cl,&t); |
1216 | } | |
1217 | ||
4551ea7c | 1218 | // Reset material budget if 2 consecutive gold |
1219 | if (plane > 0) { | |
27eaf44b | 1220 | if ((t.GetTracklets(plane).GetN() + t.GetTracklets(plane-1).GetN()) > 20) { |
1221 | t.SetBudget(2,0.0); | |
4551ea7c | 1222 | } |
1223 | } | |
1224 | ||
1225 | } | |
1226 | ||
8979685e | 1227 | } |
4551ea7c | 1228 | |
59393e34 | 1229 | } |
4551ea7c | 1230 | |
1231 | ratio0 = ncl / Float_t(fTimeBinsPerPlane); | |
27eaf44b | 1232 | Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1); |
1233 | if ((tracklet.GetChi2() < 18.0) && | |
1234 | (ratio0 > 0.8) && | |
1235 | (ratio1 > 0.6) && | |
1236 | (ratio0+ratio1 > 1.5) && | |
1237 | (t.GetNCross() == 0) && | |
1238 | (TMath::Abs(t.GetSnp()) < 0.85) && | |
1239 | (t.GetNumberOfClusters() > 20)){ | |
4551ea7c | 1240 | t.MakeBackupTrack(); // Make backup of the track until is gold |
59393e34 | 1241 | } |
7b580082 | 1242 | |
8979685e | 1243 | } |
5443e65e | 1244 | |
75bd7f81 | 1245 | return expectedNumberOfClusters; |
1e9bb598 | 1246 | |
75bd7f81 | 1247 | } |
1e9bb598 | 1248 | |
75bd7f81 | 1249 | //_____________________________________________________________________________ |
4551ea7c | 1250 | Int_t AliTRDtracker::PropagateToX(AliTRDtrack &t, Double_t xToGo, Double_t maxStep) |
5443e65e | 1251 | { |
75bd7f81 | 1252 | // |
5443e65e | 1253 | // Starting from current radial position of track <t> this function |
1254 | // extrapolates the track up to radial position <xToGo>. | |
1255 | // Returns 1 if track reaches the plane, and 0 otherwise | |
75bd7f81 | 1256 | // |
1257 | ||
59393e34 | 1258 | const Double_t kEpsilon = 0.00001; |
4551ea7c | 1259 | //Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); |
1260 | Double_t xpos = t.GetX(); | |
1261 | Double_t dir = (xpos<xToGo) ? 1.0 : -1.0; | |
1262 | ||
1263 | while (((xToGo-xpos)*dir) > kEpsilon) { | |
1264 | ||
1265 | Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep); | |
1266 | ||
1267 | Double_t xyz0[3]; | |
1268 | Double_t xyz1[3]; | |
1269 | Double_t param[7]; | |
1270 | Double_t x; | |
1271 | Double_t y; | |
1272 | Double_t z; | |
1273 | // Starting global position | |
1274 | t.GetXYZ(xyz0); | |
1275 | x = xpos + step; | |
1276 | ||
1277 | if (!t.GetProlongation(x,y,z)) { | |
1278 | return 0; // No prolongation | |
1279 | } | |
1280 | ||
1281 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1282 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1283 | xyz1[2] = z; | |
1284 | ||
59393e34 | 1285 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1286 | if (!t.PropagateTo(x,param[1],param[0])) { |
1287 | return 0; | |
1288 | } | |
59393e34 | 1289 | AdjustSector(&t); |
1290 | xpos = t.GetX(); | |
4551ea7c | 1291 | |
5443e65e | 1292 | } |
75bd7f81 | 1293 | |
5443e65e | 1294 | return 1; |
5443e65e | 1295 | |
59393e34 | 1296 | } |
5443e65e | 1297 | |
c630aafd | 1298 | //_____________________________________________________________________________ |
1299 | Int_t AliTRDtracker::LoadClusters(TTree *cTree) | |
1300 | { | |
75bd7f81 | 1301 | // |
c630aafd | 1302 | // Fills clusters into TRD tracking_sectors |
1303 | // Note that the numbering scheme for the TRD tracking_sectors | |
1304 | // differs from that of TRD sectors | |
75bd7f81 | 1305 | // |
1306 | ||
c630aafd | 1307 | if (ReadClusters(fClusters,cTree)) { |
4551ea7c | 1308 | AliError("Problem with reading the clusters !"); |
c630aafd | 1309 | return 1; |
1310 | } | |
4551ea7c | 1311 | Int_t ncl = fClusters->GetEntriesFast(); |
1312 | fNclusters = ncl; | |
1313 | AliInfo(Form("Sorting %d clusters",ncl)); | |
c630aafd | 1314 | |
1315 | UInt_t index; | |
4551ea7c | 1316 | for (Int_t ichamber = 0; ichamber < 5; ichamber++) { |
1317 | for (Int_t isector = 0; isector < 18; isector++) { | |
1318 | fHoles[ichamber][isector] = kTRUE; | |
3c625a9b | 1319 | } |
4551ea7c | 1320 | } |
ad670fba | 1321 | |
6c94f330 | 1322 | while (ncl--) { |
33744e5d | 1323 | |
4551ea7c | 1324 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(ncl); |
1325 | Int_t detector = c->GetDetector(); | |
1326 | Int_t localTimeBin = c->GetLocalTimeBin(); | |
1327 | Int_t sector = fGeom->GetSector(detector); | |
1328 | Int_t plane = fGeom->GetPlane(detector); | |
029cd327 | 1329 | Int_t trackingSector = CookSectorIndex(sector); |
4551ea7c | 1330 | |
1331 | if (c->GetLabel(0) > 0) { | |
3c625a9b | 1332 | Int_t chamber = fGeom->GetChamber(detector); |
4551ea7c | 1333 | fHoles[chamber][trackingSector] = kFALSE; |
3c625a9b | 1334 | } |
c630aafd | 1335 | |
6c94f330 | 1336 | Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); |
4551ea7c | 1337 | if (gtb < 0) { |
1338 | continue; | |
1339 | } | |
029cd327 | 1340 | Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); |
c630aafd | 1341 | |
4551ea7c | 1342 | index = ncl; |
33744e5d | 1343 | |
1344 | // Apply pos correction | |
59393e34 | 1345 | Transform(c); |
029cd327 | 1346 | fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); |
33744e5d | 1347 | |
4551ea7c | 1348 | } |
75bd7f81 | 1349 | |
c630aafd | 1350 | return 0; |
75bd7f81 | 1351 | |
c630aafd | 1352 | } |
1353 | ||
5443e65e | 1354 | //_____________________________________________________________________________ |
b7a0917f | 1355 | void AliTRDtracker::UnloadClusters() |
5443e65e | 1356 | { |
1357 | // | |
1358 | // Clears the arrays of clusters and tracks. Resets sectors and timebins | |
1359 | // | |
1360 | ||
4551ea7c | 1361 | Int_t i; |
1362 | Int_t nentr; | |
5443e65e | 1363 | |
1364 | nentr = fClusters->GetEntriesFast(); | |
4551ea7c | 1365 | for (i = 0; i < nentr; i++) { |
1366 | delete fClusters->RemoveAt(i); | |
1367 | } | |
b7a0917f | 1368 | fNclusters = 0; |
5443e65e | 1369 | |
1370 | nentr = fSeeds->GetEntriesFast(); | |
4551ea7c | 1371 | for (i = 0; i < nentr; i++) { |
1372 | delete fSeeds->RemoveAt(i); | |
1373 | } | |
5443e65e | 1374 | |
1375 | nentr = fTracks->GetEntriesFast(); | |
4551ea7c | 1376 | for (i = 0; i < nentr; i++) { |
1377 | delete fTracks->RemoveAt(i); | |
1378 | } | |
5443e65e | 1379 | |
1380 | Int_t nsec = AliTRDgeometry::kNsect; | |
5443e65e | 1381 | for (i = 0; i < nsec; i++) { |
1382 | for(Int_t pl = 0; pl < fTrSec[i]->GetNumberOfLayers(); pl++) { | |
1383 | fTrSec[i]->GetLayer(pl)->Clear(); | |
1384 | } | |
1385 | } | |
1386 | ||
1387 | } | |
1388 | ||
75bd7f81 | 1389 | //_____________________________________________________________________________ |
4551ea7c | 1390 | void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD *esd) |
7ad19338 | 1391 | { |
1392 | // | |
1393 | // Creates seeds using clusters between position inner plane and outer plane | |
1394 | // | |
75bd7f81 | 1395 | |
4551ea7c | 1396 | const Double_t kMaxTheta = 1.0; |
1397 | const Double_t kMaxPhi = 2.0; | |
1398 | ||
1399 | const Double_t kRoad0y = 6.0; // Road for middle cluster | |
1400 | const Double_t kRoad0z = 8.5; // Road for middle cluster | |
1401 | ||
1402 | const Double_t kRoad1y = 2.0; // Road in y for seeded cluster | |
1403 | const Double_t kRoad1z = 20.0; // Road in z for seeded cluster | |
1404 | ||
1405 | const Double_t kRoad2y = 3.0; // Road in y for extrapolated cluster | |
1406 | const Double_t kRoad2z = 20.0; // Road in z for extrapolated cluster | |
c6f438c0 | 1407 | const Int_t kMaxSeed = 3000; |
7ad19338 | 1408 | |
4551ea7c | 1409 | Int_t maxSec = AliTRDgeometry::kNsect; |
1410 | ||
1411 | // Linear fitters in planes | |
1412 | TLinearFitter fitterTC(2,"hyp2"); // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const | |
1413 | TLinearFitter fitterT2(4,"hyp4"); // Fitting with tilting pads - kz not fixed | |
69b55c55 | 1414 | fitterTC.StoreData(kTRUE); |
1415 | fitterT2.StoreData(kTRUE); | |
4551ea7c | 1416 | AliRieman rieman(1000); // Rieman fitter |
1417 | AliRieman rieman2(1000); // Rieman fitter | |
1418 | ||
1419 | // Find the maximal and minimal layer for the planes | |
7ad19338 | 1420 | Int_t layers[6][2]; |
4551ea7c | 1421 | AliTRDpropagationLayer *reflayers[6]; |
1422 | for (Int_t i = 0; i < 6; i++) { | |
1423 | layers[i][0] = 10000; | |
1424 | layers[i][1] = 0; | |
1425 | } | |
1426 | for (Int_t ns = 0; ns < maxSec; ns++) { | |
1427 | for (Int_t ilayer = 0; ilayer < fTrSec[ns]->GetNumberOfLayers(); ilayer++) { | |
1428 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(ilayer)); | |
1429 | if (layer == 0) { | |
1430 | continue; | |
1431 | } | |
7ad19338 | 1432 | Int_t det = layer[0]->GetDetector(); |
1433 | Int_t plane = fGeom->GetPlane(det); | |
4551ea7c | 1434 | if (ilayer < layers[plane][0]) { |
1435 | layers[plane][0] = ilayer; | |
1436 | } | |
1437 | if (ilayer > layers[plane][1]) { | |
1438 | layers[plane][1] = ilayer; | |
1439 | } | |
7ad19338 | 1440 | } |
1441 | } | |
4551ea7c | 1442 | |
3551db50 | 1443 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); |
6c94f330 | 1444 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
4551ea7c | 1445 | Double_t hL[6]; // Tilting angle |
1446 | Double_t xcl[6]; // X - position of reference cluster | |
1447 | Double_t ycl[6]; // Y - position of reference cluster | |
1448 | Double_t zcl[6]; // Z - position of reference cluster | |
1449 | ||
1450 | AliTRDcluster *cl[6] = { 0, 0, 0, 0, 0, 0 }; // Seeding clusters | |
1451 | Float_t padlength[6] = { 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 }; // Current pad-length | |
1452 | ||
1453 | Double_t chi2R = 0.0; | |
1454 | Double_t chi2Z = 0.0; | |
1455 | Double_t chi2RF = 0.0; | |
1456 | Double_t chi2ZF = 0.0; | |
1457 | ||
1458 | Int_t nclusters; // Total number of clusters | |
1459 | for (Int_t i = 0; i < 6; i++) { | |
1460 | hL[i] = h01; | |
1461 | if (i%2==1) { | |
1462 | hL[i]*=-1.0; | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | // Registered seed | |
c6f438c0 | 1467 | AliTRDseed *pseed = new AliTRDseed[kMaxSeed*6]; |
1468 | AliTRDseed *seed[kMaxSeed]; | |
4551ea7c | 1469 | for (Int_t iseed = 0; iseed < kMaxSeed; iseed++) { |
1470 | seed[iseed]= &pseed[iseed*6]; | |
1471 | } | |
69b55c55 | 1472 | AliTRDseed *cseed = seed[0]; |
4551ea7c | 1473 | |
1474 | Double_t seedquality[kMaxSeed]; | |
1475 | Double_t seedquality2[kMaxSeed]; | |
1476 | Double_t seedparams[kMaxSeed][7]; | |
1477 | Int_t seedlayer[kMaxSeed]; | |
1478 | Int_t registered = 0; | |
1479 | Int_t sort[kMaxSeed]; | |
1480 | ||
1481 | // | |
1482 | // Seeding part | |
1483 | // | |
1484 | for (Int_t ns = 0; ns < maxSec; ns++) { // Loop over sectors | |
1485 | //for (Int_t ns = 0; ns < 5; ns++) { // Loop over sectors | |
1486 | ||
1487 | registered = 0; // Reset registerd seed counter | |
1488 | cseed = seed[registered]; | |
1489 | Float_t iter = 0.0; | |
1490 | ||
1491 | for (Int_t sLayer = 2; sLayer >= 0; sLayer--) { | |
1492 | //for (Int_t dseed = 5; dseed < 15; dseed += 3) { | |
1493 | ||
1494 | iter += 1.0; | |
1495 | Int_t dseed = 5 + Int_t(iter) * 3; | |
1496 | ||
69b55c55 | 1497 | // Initialize seeding layers |
4551ea7c | 1498 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { |
69b55c55 | 1499 | reflayers[ilayer] = fTrSec[ns]->GetLayer(layers[ilayer][1]-dseed); |
1500 | xcl[ilayer] = reflayers[ilayer]->GetX(); | |
4551ea7c | 1501 | } |
1502 | ||
1503 | Double_t xref = (xcl[sLayer+1] + xcl[sLayer+2]) * 0.5; | |
1504 | AliTRDpropagationLayer &layer0 = *reflayers[sLayer+0]; | |
1505 | AliTRDpropagationLayer &layer1 = *reflayers[sLayer+1]; | |
1506 | AliTRDpropagationLayer &layer2 = *reflayers[sLayer+2]; | |
1507 | AliTRDpropagationLayer &layer3 = *reflayers[sLayer+3]; | |
1508 | ||
1509 | Int_t maxn3 = layer3; | |
1510 | for (Int_t icl3 = 0; icl3 < maxn3; icl3++) { | |
33744e5d | 1511 | |
69b55c55 | 1512 | AliTRDcluster *cl3 = layer3[icl3]; |
4551ea7c | 1513 | if (!cl3) { |
1514 | continue; | |
1515 | } | |
1516 | padlength[sLayer+3] = TMath::Sqrt(cl3->GetSigmaZ2() * 12.0); | |
69b55c55 | 1517 | ycl[sLayer+3] = cl3->GetY(); |
1518 | zcl[sLayer+3] = cl3->GetZ(); | |
4551ea7c | 1519 | Float_t yymin0 = ycl[sLayer+3] - 1.0 - kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); |
1520 | Float_t yymax0 = ycl[sLayer+3] + 1.0 + kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); | |
1521 | Int_t maxn0 = layer0; | |
1522 | ||
1523 | for (Int_t icl0 = layer0.Find(yymin0); icl0 < maxn0; icl0++) { | |
1524 | ||
69b55c55 | 1525 | AliTRDcluster *cl0 = layer0[icl0]; |
4551ea7c | 1526 | if (!cl0) { |
1527 | continue; | |
1528 | } | |
1529 | if (cl3->IsUsed() && cl0->IsUsed()) { | |
1530 | continue; | |
1531 | } | |
69b55c55 | 1532 | ycl[sLayer+0] = cl0->GetY(); |
1533 | zcl[sLayer+0] = cl0->GetZ(); | |
4551ea7c | 1534 | if (ycl[sLayer+0] > yymax0) { |
1535 | break; | |
1536 | } | |
1537 | Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1538 | if (TMath::Abs(tanphi) > kMaxPhi) { | |
1539 | continue; | |
1540 | } | |
1541 | Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1542 | if (TMath::Abs(tantheta) > kMaxTheta) { | |
1543 | continue; | |
1544 | } | |
1545 | padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2() * 12.0); | |
1546 | ||
1547 | // Expected position in 1 layer | |
1548 | Double_t y1exp = ycl[sLayer+0] + (tanphi) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1549 | Double_t z1exp = zcl[sLayer+0] + (tantheta) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1550 | Float_t yymin1 = y1exp - kRoad0y - tanphi; | |
1551 | Float_t yymax1 = y1exp + kRoad0y + tanphi; | |
1552 | Int_t maxn1 = layer1; | |
1553 | ||
1554 | for (Int_t icl1 = layer1.Find(yymin1); icl1 < maxn1; icl1++) { | |
1555 | ||
69b55c55 | 1556 | AliTRDcluster *cl1 = layer1[icl1]; |
4551ea7c | 1557 | if (!cl1) { |
1558 | continue; | |
1559 | } | |
69b55c55 | 1560 | Int_t nusedCl = 0; |
1561 | if (cl3->IsUsed()) nusedCl++; | |
1562 | if (cl0->IsUsed()) nusedCl++; | |
1563 | if (cl1->IsUsed()) nusedCl++; | |
4551ea7c | 1564 | if (nusedCl > 1) { |
1565 | continue; | |
1566 | } | |
69b55c55 | 1567 | ycl[sLayer+1] = cl1->GetY(); |
1568 | zcl[sLayer+1] = cl1->GetZ(); | |
4551ea7c | 1569 | if (ycl[sLayer+1] > yymax1) { |
1570 | break; | |
1571 | } | |
1572 | if (TMath::Abs(ycl[sLayer+1]-y1exp) > kRoad0y+tanphi) { | |
1573 | continue; | |
1574 | } | |
1575 | if (TMath::Abs(zcl[sLayer+1]-z1exp) > kRoad0z) { | |
1576 | continue; | |
1577 | } | |
1578 | padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2() * 12.0); | |
1579 | ||
1580 | Double_t y2exp = ycl[sLayer+0]+(tanphi) * (xcl[sLayer+2]-xcl[sLayer+0]) + (ycl[sLayer+1]-y1exp); | |
1581 | Double_t z2exp = zcl[sLayer+0]+(tantheta) * (xcl[sLayer+2]-xcl[sLayer+0]); | |
1582 | Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y,kRoad1z); | |
1583 | if (index2 <= 0) { | |
1584 | continue; | |
1585 | } | |
1586 | AliTRDcluster *cl2 = (AliTRDcluster *) GetCluster(index2); | |
1587 | padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2() * 12.0); | |
1588 | ycl[sLayer+2] = cl2->GetY(); | |
1589 | zcl[sLayer+2] = cl2->GetZ(); | |
1590 | if (TMath::Abs(cl2->GetZ()-z2exp) > kRoad0z) { | |
1591 | continue; | |
1592 | } | |
1593 | ||
69b55c55 | 1594 | rieman.Reset(); |
1595 | rieman.AddPoint(xcl[sLayer+0],ycl[sLayer+0],zcl[sLayer+0],1,10); | |
1596 | rieman.AddPoint(xcl[sLayer+1],ycl[sLayer+1],zcl[sLayer+1],1,10); | |
1597 | rieman.AddPoint(xcl[sLayer+3],ycl[sLayer+3],zcl[sLayer+3],1,10); | |
1598 | rieman.AddPoint(xcl[sLayer+2],ycl[sLayer+2],zcl[sLayer+2],1,10); | |
1599 | rieman.Update(); | |
4551ea7c | 1600 | |
1601 | // Reset fitter | |
1602 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
69b55c55 | 1603 | cseed[iLayer].Reset(); |
1604 | } | |
4551ea7c | 1605 | chi2Z = 0.0; |
1606 | chi2R = 0.0; | |
1607 | ||
1608 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1609 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); |
1610 | chi2Z += (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]) | |
1611 | * (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]); | |
1612 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
1613 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); | |
1614 | chi2R += (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]) | |
1615 | * (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]); | |
1616 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
69b55c55 | 1617 | } |
4551ea7c | 1618 | if (TMath::Sqrt(chi2R) > 1.0/iter) { |
1619 | continue; | |
1620 | } | |
1621 | if (TMath::Sqrt(chi2Z) > 7.0/iter) { | |
1622 | continue; | |
69b55c55 | 1623 | } |
4551ea7c | 1624 | |
1625 | Float_t minmax[2] = { -100.0, 100.0 }; | |
1626 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1627 | Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1628 | + 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1629 | if (max < minmax[1]) { |
1630 | minmax[1] = max; | |
1631 | } | |
1632 | Float_t min = zcl[sLayer+iLayer]-padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1633 | - 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1634 | if (min > minmax[0]) { |
1635 | minmax[0] = min; | |
1636 | } | |
1637 | } | |
1638 | ||
69b55c55 | 1639 | Bool_t isFake = kFALSE; |
4551ea7c | 1640 | if (cl0->GetLabel(0) != cl3->GetLabel(0)) { |
1641 | isFake = kTRUE; | |
1642 | } | |
1643 | if (cl1->GetLabel(0) != cl3->GetLabel(0)) { | |
1644 | isFake = kTRUE; | |
1645 | } | |
1646 | if (cl2->GetLabel(0) != cl3->GetLabel(0)) { | |
1647 | isFake = kTRUE; | |
1648 | } | |
1649 | ||
1650 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
1651 | if ((!isFake) || ((icl3%10) == 0)) { // Debugging print | |
1652 | TTreeSRedirector &cstream = *fDebugStreamer; | |
1653 | cstream << "Seeds0" | |
1654 | << "isFake=" << isFake | |
1655 | << "Cl0.=" << cl0 | |
1656 | << "Cl1.=" << cl1 | |
1657 | << "Cl2.=" << cl2 | |
1658 | << "Cl3.=" << cl3 | |
1659 | << "Xref=" << xref | |
1660 | << "X0=" << xcl[sLayer+0] | |
1661 | << "X1=" << xcl[sLayer+1] | |
1662 | << "X2=" << xcl[sLayer+2] | |
1663 | << "X3=" << xcl[sLayer+3] | |
1664 | << "Y2exp=" << y2exp | |
1665 | << "Z2exp=" << z2exp | |
1666 | << "Chi2R=" << chi2R | |
1667 | << "Chi2Z=" << chi2Z | |
1668 | << "Seed0.=" << &cseed[sLayer+0] | |
1669 | << "Seed1.=" << &cseed[sLayer+1] | |
1670 | << "Seed2.=" << &cseed[sLayer+2] | |
1671 | << "Seed3.=" << &cseed[sLayer+3] | |
1672 | << "Zmin=" << minmax[0] | |
1673 | << "Zmax=" << minmax[1] | |
1674 | << "\n"; | |
d337ef8d | 1675 | } |
69b55c55 | 1676 | } |
33744e5d | 1677 | |
4551ea7c | 1678 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1679 | // |
4551ea7c | 1680 | // Fit seeding part |
33744e5d | 1681 | // |
4551ea7c | 1682 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1683 | |
69b55c55 | 1684 | cl[sLayer+0] = cl0; |
1685 | cl[sLayer+1] = cl1; | |
1686 | cl[sLayer+2] = cl2; | |
1687 | cl[sLayer+3] = cl3; | |
4551ea7c | 1688 | Bool_t isOK = kTRUE; |
1689 | ||
1690 | for (Int_t jLayer = 0; jLayer < 4; jLayer++) { | |
1691 | ||
ca1e1e5b | 1692 | cseed[sLayer+jLayer].SetTilt(hL[sLayer+jLayer]); |
1693 | cseed[sLayer+jLayer].SetPadLength(padlength[sLayer+jLayer]); | |
1694 | cseed[sLayer+jLayer].SetX0(xcl[sLayer+jLayer]); | |
4551ea7c | 1695 | |
1696 | for (Int_t iter = 0; iter < 2; iter++) { | |
1697 | ||
69b55c55 | 1698 | // |
4551ea7c | 1699 | // In iteration 0 we try only one pad-row |
1700 | // If quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows | |
69b55c55 | 1701 | // |
1702 | AliTRDseed tseed = cseed[sLayer+jLayer]; | |
4551ea7c | 1703 | Float_t roadz = padlength[sLayer+jLayer] * 0.5; |
1704 | if (iter > 0) { | |
1705 | roadz = padlength[sLayer+jLayer]; | |
1706 | } | |
1707 | ||
1708 | Float_t quality = 10000.0; | |
1709 | ||
1710 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
1711 | ||
1712 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime)); | |
1713 | Double_t dxlayer = layer.GetX() - xcl[sLayer+jLayer]; | |
1714 | Double_t zexp = cl[sLayer+jLayer]->GetZ(); | |
1715 | ||
1716 | if (iter > 0) { | |
1717 | // Try 2 pad-rows in second iteration | |
ca1e1e5b | 1718 | zexp = tseed.GetZref(0) + tseed.GetZref(1) * dxlayer; |
4551ea7c | 1719 | if (zexp > cl[sLayer+jLayer]->GetZ()) { |
1720 | zexp = cl[sLayer+jLayer]->GetZ() + padlength[sLayer+jLayer]*0.5; | |
1721 | } | |
1722 | if (zexp < cl[sLayer+jLayer]->GetZ()) { | |
1723 | zexp = cl[sLayer+jLayer]->GetZ() - padlength[sLayer+jLayer]*0.5; | |
1724 | } | |
69b55c55 | 1725 | } |
4551ea7c | 1726 | |
ca1e1e5b | 1727 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 1728 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
1729 | if (index <= 0) { | |
1730 | continue; | |
1731 | } | |
1732 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
1733 | ||
ca1e1e5b | 1734 | tseed.SetIndexes(iTime,index); |
1735 | tseed.SetClusters(iTime,cl); // Register cluster | |
1736 | tseed.SetX(iTime,dxlayer); // Register cluster | |
1737 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
1738 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 1739 | |
1740 | } | |
1741 | ||
69b55c55 | 1742 | tseed.Update(); |
4551ea7c | 1743 | |
1744 | // Count the number of clusters and distortions into quality | |
ca1e1e5b | 1745 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
1746 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
1747 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
1748 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 1749 | if ((iter == 0) && tseed.IsOK()) { |
1750 | cseed[sLayer+jLayer] = tseed; | |
1751 | quality = tquality; | |
1752 | if (tquality < 5) { | |
1753 | break; | |
1754 | } | |
1755 | } | |
1756 | if (tseed.IsOK() && (tquality < quality)) { | |
69b55c55 | 1757 | cseed[sLayer+jLayer] = tseed; |
69b55c55 | 1758 | } |
4551ea7c | 1759 | |
1760 | } // Loop: iter | |
1761 | ||
1762 | if (!cseed[sLayer+jLayer].IsOK()) { | |
69b55c55 | 1763 | isOK = kFALSE; |
1764 | break; | |
4551ea7c | 1765 | } |
1766 | ||
69b55c55 | 1767 | cseed[sLayer+jLayer].CookLabels(); |
1768 | cseed[sLayer+jLayer].UpdateUsed(); | |
ca1e1e5b | 1769 | nusedCl += cseed[sLayer+jLayer].GetNUsed(); |
4551ea7c | 1770 | if (nusedCl > 25) { |
69b55c55 | 1771 | isOK = kFALSE; |
1772 | break; | |
4551ea7c | 1773 | } |
1774 | ||
1775 | } // Loop: jLayer | |
1776 | ||
1777 | if (!isOK) { | |
1778 | continue; | |
69b55c55 | 1779 | } |
4551ea7c | 1780 | nclusters = 0; |
1781 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1782 | if (cseed[sLayer+iLayer].IsOK()) { | |
ca1e1e5b | 1783 | nclusters += cseed[sLayer+iLayer].GetN2(); |
69b55c55 | 1784 | } |
1785 | } | |
4551ea7c | 1786 | |
1787 | // Iteration 0 | |
69b55c55 | 1788 | rieman.Reset(); |
4551ea7c | 1789 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { |
1790 | rieman.AddPoint(xcl[sLayer+iLayer] | |
ca1e1e5b | 1791 | ,cseed[sLayer+iLayer].GetYfitR(0) |
1792 | ,cseed[sLayer+iLayer].GetZProb() | |
4551ea7c | 1793 | ,1 |
1794 | ,10); | |
69b55c55 | 1795 | } |
1796 | rieman.Update(); | |
4551ea7c | 1797 | |
1798 | chi2R = 0.0; | |
1799 | chi2Z = 0.0; | |
1800 | ||
1801 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1802 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); |
1803 | chi2R += (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)) | |
1804 | * (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)); | |
1805 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
1806 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); | |
1807 | chi2Z += (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()) | |
1808 | * (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()); | |
1809 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
69b55c55 | 1810 | } |
1811 | Double_t curv = rieman.GetC(); | |
4551ea7c | 1812 | |
69b55c55 | 1813 | // |
4551ea7c | 1814 | // Likelihoods |
6c94f330 | 1815 | // |
ca1e1e5b | 1816 | Double_t sumda = TMath::Abs(cseed[sLayer+0].GetYfitR(1) - cseed[sLayer+0].GetYref(1)) |
1817 | + TMath::Abs(cseed[sLayer+1].GetYfitR(1) - cseed[sLayer+1].GetYref(1)) | |
1818 | + TMath::Abs(cseed[sLayer+2].GetYfitR(1) - cseed[sLayer+2].GetYref(1)) | |
1819 | + TMath::Abs(cseed[sLayer+3].GetYfitR(1) - cseed[sLayer+3].GetYref(1)); | |
4551ea7c | 1820 | Double_t likea = TMath::Exp(-sumda*10.6); |
1821 | Double_t likechi2 = 0.0000000001; | |
1822 | if (chi2R < 0.5) { | |
1823 | likechi2 += TMath::Exp(-TMath::Sqrt(chi2R) * 7.73); | |
1824 | } | |
1825 | Double_t likechi2z = TMath::Exp(-chi2Z * 0.088) / TMath::Exp(-chi2Z * 0.019); | |
1826 | Double_t likeN = TMath::Exp(-(72 - nclusters) * 0.19); | |
1827 | Double_t like = likea * likechi2 * likechi2z * likeN; | |
ca1e1e5b | 1828 | Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetYref(1) - 130.0*curv) * 1.9); |
1829 | Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetZref(1) | |
1830 | - cseed[sLayer+0].GetZref(0) / xcl[sLayer+0]) * 5.9); | |
6c94f330 | 1831 | Double_t likePrim = TMath::Max(likePrimY*likePrimZ,0.0005); |
69b55c55 | 1832 | |
4551ea7c | 1833 | seedquality[registered] = like; |
1834 | seedlayer[registered] = sLayer; | |
1835 | if (TMath::Log(0.000000000000001 + like) < -15) { | |
1836 | continue; | |
1837 | } | |
69b55c55 | 1838 | AliTRDseed seedb[6]; |
4551ea7c | 1839 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
69b55c55 | 1840 | seedb[iLayer] = cseed[iLayer]; |
1841 | } | |
4551ea7c | 1842 | |
1843 | //////////////////////////////////////////////////////////////////////////////////// | |
ad670fba | 1844 | // |
4551ea7c | 1845 | // Full track fit part |
33744e5d | 1846 | // |
4551ea7c | 1847 | //////////////////////////////////////////////////////////////////////////////////// |
1848 | ||
1849 | Int_t nlayers = 0; | |
1850 | Int_t nusedf = 0; | |
1851 | Int_t findable = 0; | |
1852 | ||
69b55c55 | 1853 | // |
4551ea7c | 1854 | // Add new layers - avoid long extrapolation |
69b55c55 | 1855 | // |
4551ea7c | 1856 | Int_t tLayer[2] = { 0, 0 }; |
1857 | if (sLayer == 2) { | |
1858 | tLayer[0] = 1; | |
1859 | tLayer[1] = 0; | |
1860 | } | |
1861 | if (sLayer == 1) { | |
1862 | tLayer[0] = 5; | |
1863 | tLayer[1] = 0; | |
1864 | } | |
1865 | if (sLayer == 0) { | |
1866 | tLayer[0] = 4; | |
1867 | tLayer[1] = 5; | |
1868 | } | |
1869 | ||
1870 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
1871 | Int_t jLayer = tLayer[iLayer]; // Set tracking layer | |
69b55c55 | 1872 | cseed[jLayer].Reset(); |
ca1e1e5b | 1873 | cseed[jLayer].SetTilt(hL[jLayer]); |
1874 | cseed[jLayer].SetPadLength(padlength[jLayer]); | |
1875 | cseed[jLayer].SetX0(xcl[jLayer]); | |
4551ea7c | 1876 | // Get pad length and rough cluster |
ca1e1e5b | 1877 | Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].GetYref(0) |
1878 | ,cseed[jLayer].GetZref(0) | |
4551ea7c | 1879 | ,kRoad2y |
1880 | ,kRoad2z); | |
1881 | if (indexdummy <= 0) { | |
1882 | continue; | |
1883 | } | |
1884 | AliTRDcluster *cldummy = (AliTRDcluster *) GetCluster(indexdummy); | |
1885 | padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2() * 12.0); | |
69b55c55 | 1886 | } |
4551ea7c | 1887 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
1888 | ||
1889 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
1890 | ||
1891 | Int_t jLayer = tLayer[iLayer]; // set tracking layer | |
1892 | if ((jLayer == 0) && !(cseed[1].IsOK())) { | |
1893 | continue; // break not allowed | |
1894 | } | |
1895 | if ((jLayer == 5) && !(cseed[4].IsOK())) { | |
1896 | continue; // break not allowed | |
1897 | } | |
ca1e1e5b | 1898 | Float_t zexp = cseed[jLayer].GetZref(0); |
4551ea7c | 1899 | Double_t zroad = padlength[jLayer] * 0.5 + 1.0; |
1900 | ||
1901 | for (Int_t iter = 0; iter < 2; iter++) { | |
1902 | ||
69b55c55 | 1903 | AliTRDseed tseed = cseed[jLayer]; |
4551ea7c | 1904 | Float_t quality = 10000.0; |
1905 | ||
1906 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
1907 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime)); | |
1908 | Double_t dxlayer = layer.GetX()-xcl[jLayer]; | |
ca1e1e5b | 1909 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 1910 | Float_t yroad = kRoad1y; |
1911 | Int_t index = layer.FindNearestCluster(yexp,zexp,yroad,zroad); | |
1912 | if (index <= 0) { | |
1913 | continue; | |
1914 | } | |
1915 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
ca1e1e5b | 1916 | tseed.SetIndexes(iTime,index); |
1917 | tseed.SetClusters(iTime,cl); // Register cluster | |
1918 | tseed.SetX(iTime,dxlayer); // Register cluster | |
1919 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
1920 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 1921 | } |
1922 | ||
69b55c55 | 1923 | tseed.Update(); |
4551ea7c | 1924 | if (tseed.IsOK()) { |
ca1e1e5b | 1925 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
1926 | Float_t tquality = (18.0 - tseed.GetN2())/2.0 + TMath::Abs(dangle) / 0.1 | |
1927 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
1928 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 1929 | if (tquality < quality) { |
1930 | cseed[jLayer] = tseed; | |
1931 | quality = tquality; | |
69b55c55 | 1932 | } |
1933 | } | |
4551ea7c | 1934 | |
1935 | zroad *= 2.0; | |
1936 | ||
1937 | } // Loop: iter | |
1938 | ||
1939 | if ( cseed[jLayer].IsOK()) { | |
69b55c55 | 1940 | cseed[jLayer].CookLabels(); |
1941 | cseed[jLayer].UpdateUsed(); | |
ca1e1e5b | 1942 | nusedf += cseed[jLayer].GetNUsed(); |
4551ea7c | 1943 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
69b55c55 | 1944 | } |
4551ea7c | 1945 | |
1946 | } // Loop: iLayer | |
1947 | ||
1948 | // Make copy | |
69b55c55 | 1949 | AliTRDseed bseed[6]; |
4551ea7c | 1950 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { |
69b55c55 | 1951 | bseed[jLayer] = cseed[jLayer]; |
4551ea7c | 1952 | } |
1953 | Float_t lastquality = 10000.0; | |
1954 | Float_t lastchi2 = 10000.0; | |
1955 | Float_t chi2 = 1000.0; | |
1956 | ||
1957 | for (Int_t iter = 0; iter < 4; iter++) { | |
1958 | ||
1959 | // Sort tracklets according "quality", try to "improve" 4 worst | |
1960 | Float_t sumquality = 0.0; | |
69b55c55 | 1961 | Float_t squality[6]; |
1962 | Int_t sortindexes[6]; | |
4551ea7c | 1963 | |
1964 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
1965 | if (bseed[jLayer].IsOK()) { | |
69b55c55 | 1966 | AliTRDseed &tseed = bseed[jLayer]; |
ca1e1e5b | 1967 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); |
1968 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); | |
1969 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
1970 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
1971 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 1972 | squality[jLayer] = tquality; |
1973 | } | |
1974 | else { | |
1975 | squality[jLayer] = -1.0; | |
ad670fba | 1976 | } |
6c94f330 | 1977 | sumquality +=squality[jLayer]; |
69b55c55 | 1978 | } |
1979 | ||
4551ea7c | 1980 | if ((sumquality >= lastquality) || |
1981 | (chi2 > lastchi2)) { | |
1982 | break; | |
1983 | } | |
69b55c55 | 1984 | lastquality = sumquality; |
1985 | lastchi2 = chi2; | |
4551ea7c | 1986 | if (iter > 0) { |
1987 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
69b55c55 | 1988 | cseed[jLayer] = bseed[jLayer]; |
1989 | } | |
1990 | } | |
1991 | TMath::Sort(6,squality,sortindexes,kFALSE); | |
4551ea7c | 1992 | |
1993 | for (Int_t jLayer = 5; jLayer > 1; jLayer--) { | |
1994 | ||
6c94f330 | 1995 | Int_t bLayer = sortindexes[jLayer]; |
1996 | AliTRDseed tseed = bseed[bLayer]; | |
4551ea7c | 1997 | |
1998 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
1999 | ||
2000 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime)); | |
2001 | Double_t dxlayer = layer.GetX() - xcl[bLayer]; | |
ca1e1e5b | 2002 | Double_t zexp = tseed.GetZref(0); |
2003 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
4551ea7c | 2004 | Float_t roadz = padlength[bLayer] + 1; |
ca1e1e5b | 2005 | if (TMath::Abs(tseed.GetZProb() - zexp) > 0.5*padlength[bLayer]) { |
4551ea7c | 2006 | roadz = padlength[bLayer] * 0.5; |
2007 | } | |
ca1e1e5b | 2008 | if (tseed.GetZfit(1)*tseed.GetZref(1) < 0.0) { |
4551ea7c | 2009 | roadz = padlength[bLayer] * 0.5; |
2010 | } | |
ca1e1e5b | 2011 | if (TMath::Abs(tseed.GetZProb() - zexp) < 0.1*padlength[bLayer]) { |
2012 | zexp = tseed.GetZProb(); | |
4551ea7c | 2013 | roadz = padlength[bLayer] * 0.5; |
2014 | } | |
2015 | ||
ca1e1e5b | 2016 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer - zcor; |
4551ea7c | 2017 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
2018 | if (index <= 0) { | |
2019 | continue; | |
69b55c55 | 2020 | } |
4551ea7c | 2021 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); |
2022 | ||
ca1e1e5b | 2023 | tseed.SetIndexes(iTime,index); |
2024 | tseed.SetClusters(iTime,cl); // Register cluster | |
2025 | tseed.SetX(iTime,dxlayer); // Register cluster | |
2026 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
2027 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 2028 | |
2029 | } | |
2030 | ||
69b55c55 | 2031 | tseed.Update(); |
c6f438c0 | 2032 | if (tseed.IsOK()) { |
ca1e1e5b | 2033 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
2034 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
2035 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 | |
2036 | + TMath::Abs(dangle) / 0.1 | |
2037 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
2038 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2039 | if (tquality<squality[bLayer]) { |
69b55c55 | 2040 | bseed[bLayer] = tseed; |
4551ea7c | 2041 | } |
69b55c55 | 2042 | } |
4551ea7c | 2043 | |
2044 | } // Loop: jLayer | |
2045 | ||
2046 | chi2 = AliTRDseed::FitRiemanTilt(bseed,kTRUE); | |
2047 | ||
2048 | } // Loop: iter | |
2049 | ||
2050 | nclusters = 0; | |
2051 | nlayers = 0; | |
2052 | findable = 0; | |
2053 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2054 | if (TMath::Abs(cseed[iLayer].GetYref(0) / cseed[iLayer].GetX0()) < 0.15) { |
69b55c55 | 2055 | findable++; |
4551ea7c | 2056 | } |
2057 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2058 | nclusters += cseed[iLayer].GetN2(); |
69b55c55 | 2059 | nlayers++; |
2060 | } | |
2061 | } | |
4551ea7c | 2062 | if (nlayers < 3) { |
2063 | continue; | |
2064 | } | |
69b55c55 | 2065 | rieman.Reset(); |
4551ea7c | 2066 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
2067 | if (cseed[iLayer].IsOK()) { | |
2068 | rieman.AddPoint(xcl[iLayer] | |
ca1e1e5b | 2069 | ,cseed[iLayer].GetYfitR(0) |
2070 | ,cseed[iLayer].GetZProb() | |
4551ea7c | 2071 | ,1 |
2072 | ,10); | |
2073 | } | |
69b55c55 | 2074 | } |
2075 | rieman.Update(); | |
4551ea7c | 2076 | |
2077 | chi2RF = 0.0; | |
2078 | chi2ZF = 0.0; | |
2079 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2080 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2081 | cseed[iLayer].SetYref(0,rieman.GetYat(xcl[iLayer])); |
2082 | chi2RF += (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)) | |
2083 | * (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)); | |
2084 | cseed[iLayer].SetYref(1,rieman.GetDYat(xcl[iLayer])); | |
2085 | cseed[iLayer].SetZref(0,rieman.GetZat(xcl[iLayer])); | |
2086 | chi2ZF += (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()) | |
2087 | * (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()); | |
2088 | cseed[iLayer].SetZref(1,rieman.GetDZat(xcl[iLayer])); | |
69b55c55 | 2089 | } |
2090 | } | |
4551ea7c | 2091 | chi2RF /= TMath::Max((nlayers - 3.0),1.0); |
2092 | chi2ZF /= TMath::Max((nlayers - 3.0),1.0); | |
2093 | curv = rieman.GetC(); | |
2094 | ||
2095 | Double_t xref2 = (xcl[2] + xcl[3]) * 0.5; // Middle of the chamber | |
2096 | Double_t dzmf = rieman.GetDZat(xref2); | |
2097 | Double_t zmf = rieman.GetZat(xref2); | |
69b55c55 | 2098 | |
69b55c55 | 2099 | // |
4551ea7c | 2100 | // Fit hyperplane |
69b55c55 | 2101 | // |
4551ea7c | 2102 | Int_t npointsT = 0; |
69b55c55 | 2103 | fitterTC.ClearPoints(); |
2104 | fitterT2.ClearPoints(); | |
2105 | rieman2.Reset(); | |
4551ea7c | 2106 | |
2107 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2108 | ||
2109 | if (!cseed[iLayer].IsOK()) { | |
2110 | continue; | |
2111 | } | |
2112 | ||
2113 | for (Int_t itime = 0; itime < 25; itime++) { | |
2114 | ||
ca1e1e5b | 2115 | if (!cseed[iLayer].IsUsable(itime)) { |
4551ea7c | 2116 | continue; |
2117 | } | |
2118 | // X relative to the middle chamber | |
ca1e1e5b | 2119 | Double_t x = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0() - xref2; |
2120 | Double_t y = cseed[iLayer].GetY(itime); | |
2121 | Double_t z = cseed[iLayer].GetZ(itime); | |
69b55c55 | 2122 | // ExB correction to the correction |
4551ea7c | 2123 | // Tilted rieman |
69b55c55 | 2124 | Double_t uvt[6]; |
4551ea7c | 2125 | // Global x |
ca1e1e5b | 2126 | Double_t x2 = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0(); |
4551ea7c | 2127 | Double_t t = 1.0 / (x2*x2 + y*y); |
2128 | uvt[1] = t; // t | |
2129 | uvt[0] = 2.0 * x2 * uvt[1]; // u | |
2130 | uvt[2] = 2.0 * hL[iLayer] * uvt[1]; | |
2131 | uvt[3] = 2.0 * hL[iLayer] * x * uvt[1]; | |
2132 | uvt[4] = 2.0 * (y + hL[iLayer]*z) * uvt[1]; | |
2133 | Double_t error = 2.0 * 0.2 * uvt[1]; | |
69b55c55 | 2134 | fitterT2.AddPoint(uvt,uvt[4],error); |
4551ea7c | 2135 | |
69b55c55 | 2136 | // |
4551ea7c | 2137 | // Constrained rieman |
69b55c55 | 2138 | // |
ca1e1e5b | 2139 | z = cseed[iLayer].GetZ(itime); |
4551ea7c | 2140 | uvt[0] = 2.0 * x2 * t; // u |
2141 | uvt[1] = 2.0 * hL[iLayer] * x2 * uvt[1]; | |
2142 | uvt[2] = 2.0 * (y + hL[iLayer] * (z - GetZ())) * t; | |
69b55c55 | 2143 | fitterTC.AddPoint(uvt,uvt[2],error); |
69b55c55 | 2144 | rieman2.AddPoint(x2,y,z,1,10); |
2145 | npointsT++; | |
4551ea7c | 2146 | |
69b55c55 | 2147 | } |
4551ea7c | 2148 | |
2149 | } // Loop: iLayer | |
2150 | ||
69b55c55 | 2151 | rieman2.Update(); |
2152 | fitterTC.Eval(); | |
2153 | fitterT2.Eval(); | |
2154 | Double_t rpolz0 = fitterT2.GetParameter(3); | |
2155 | Double_t rpolz1 = fitterT2.GetParameter(4); | |
4551ea7c | 2156 | |
69b55c55 | 2157 | // |
4551ea7c | 2158 | // Linear fitter - not possible to make boundaries |
2159 | // Do not accept non possible z and dzdx combinations | |
69b55c55 | 2160 | // |
4551ea7c | 2161 | Bool_t acceptablez = kTRUE; |
2162 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2163 | if (cseed[iLayer].IsOK()) { | |
2164 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2165 | if (TMath::Abs(cseed[iLayer].GetZProb() - zT2) > padlength[iLayer] * 0.5 + 1.0) { |
69b55c55 | 2166 | acceptablez = kFALSE; |
4551ea7c | 2167 | } |
69b55c55 | 2168 | } |
2169 | } | |
4551ea7c | 2170 | if (!acceptablez) { |
69b55c55 | 2171 | fitterT2.FixParameter(3,zmf); |
2172 | fitterT2.FixParameter(4,dzmf); | |
2173 | fitterT2.Eval(); | |
2174 | fitterT2.ReleaseParameter(3); | |
2175 | fitterT2.ReleaseParameter(4); | |
2176 | rpolz0 = fitterT2.GetParameter(3); | |
2177 | rpolz1 = fitterT2.GetParameter(4); | |
2178 | } | |
4551ea7c | 2179 | |
2180 | Double_t chi2TR = fitterT2.GetChisquare() / Float_t(npointsT); | |
2181 | Double_t chi2TC = fitterTC.GetChisquare() / Float_t(npointsT); | |
69b55c55 | 2182 | Double_t polz1c = fitterTC.GetParameter(2); |
4551ea7c | 2183 | Double_t polz0c = polz1c * xref2; |
6c94f330 | 2184 | Double_t aC = fitterTC.GetParameter(0); |
2185 | Double_t bC = fitterTC.GetParameter(1); | |
4551ea7c | 2186 | Double_t cC = aC / TMath::Sqrt(bC * bC + 1.0); // Curvature |
6c94f330 | 2187 | Double_t aR = fitterT2.GetParameter(0); |
2188 | Double_t bR = fitterT2.GetParameter(1); | |
2189 | Double_t dR = fitterT2.GetParameter(2); | |
4551ea7c | 2190 | Double_t cR = 1.0 + bR*bR - dR*aR; |
2191 | Double_t dca = 0.0; | |
2192 | if (cR > 0.0) { | |
2193 | dca = -dR / (TMath::Sqrt(1.0 + bR*bR - dR*aR) + TMath::Sqrt(1.0 + bR*bR)); | |
2194 | cR = aR / TMath::Sqrt(cR); | |
69b55c55 | 2195 | } |
4551ea7c | 2196 | |
2197 | Double_t chi2ZT2 = 0.0; | |
2198 | Double_t chi2ZTC = 0.0; | |
2199 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2200 | if (cseed[iLayer].IsOK()) { | |
2201 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
2202 | Double_t zTC = polz0c + polz1c * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2203 | chi2ZT2 += TMath::Abs(cseed[iLayer].GetMeanz() - zT2); |
2204 | chi2ZTC += TMath::Abs(cseed[iLayer].GetMeanz() - zTC); | |
69b55c55 | 2205 | } |
2206 | } | |
4551ea7c | 2207 | chi2ZT2 /= TMath::Max((nlayers - 3.0),1.0); |
2208 | chi2ZTC /= TMath::Max((nlayers - 3.0),1.0); | |
2209 | ||
2210 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); | |
2211 | Float_t sumdaf = 0.0; | |
2212 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2213 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2214 | sumdaf += TMath::Abs((cseed[iLayer].GetYfit(1) - cseed[iLayer].GetYref(1)) |
2215 | / cseed[iLayer].GetSigmaY2()); | |
4551ea7c | 2216 | } |
2217 | } | |
2218 | sumdaf /= Float_t (nlayers - 2.0); | |
2219 | ||
69b55c55 | 2220 | // |
4551ea7c | 2221 | // Likelihoods for full track |
69b55c55 | 2222 | // |
4551ea7c | 2223 | Double_t likezf = TMath::Exp(-chi2ZF * 0.14); |
2224 | Double_t likechi2C = TMath::Exp(-chi2TC * 0.677); | |
2225 | Double_t likechi2TR = TMath::Exp(-chi2TR * 0.78); | |
2226 | Double_t likeaf = TMath::Exp(-sumdaf * 3.23); | |
2227 | seedquality2[registered] = likezf * likechi2TR * likeaf; | |
33744e5d | 2228 | |
4551ea7c | 2229 | // Still needed ???? |
69b55c55 | 2230 | // Bool_t isGold = kFALSE; |
2231 | // | |
6c94f330 | 2232 | // if (nlayers == 6 && TMath::Log(0.000000001+seedquality2[index])<-5.) isGold =kTRUE; // gold |
2233 | // if (nlayers == findable && TMath::Log(0.000000001+seedquality2[index])<-4.) isGold =kTRUE; // gold | |
69b55c55 | 2234 | // if (isGold &&nusedf<10){ |
2235 | // for (Int_t jLayer=0;jLayer<6;jLayer++){ | |
6c94f330 | 2236 | // if ( seed[index][jLayer].IsOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1) |
69b55c55 | 2237 | // seed[index][jLayer].UseClusters(); //sign gold |
2238 | // } | |
2239 | // } | |
4551ea7c | 2240 | |
2241 | Int_t index0 = 0; | |
2242 | if (!cseed[0].IsOK()) { | |
69b55c55 | 2243 | index0 = 1; |
4551ea7c | 2244 | if (!cseed[1].IsOK()) { |
2245 | index0 = 2; | |
2246 | } | |
69b55c55 | 2247 | } |
ca1e1e5b | 2248 | seedparams[registered][0] = cseed[index0].GetX0(); |
2249 | seedparams[registered][1] = cseed[index0].GetYref(0); | |
2250 | seedparams[registered][2] = cseed[index0].GetZref(0); | |
c6f438c0 | 2251 | seedparams[registered][5] = cR; |
ca1e1e5b | 2252 | seedparams[registered][3] = cseed[index0].GetX0() * cR - TMath::Sin(TMath::ATan(cseed[0].GetYref(1))); |
2253 | seedparams[registered][4] = cseed[index0].GetZref(1) | |
2254 | / TMath::Sqrt(1.0 + cseed[index0].GetYref(1) * cseed[index0].GetYref(1)); | |
69b55c55 | 2255 | seedparams[registered][6] = ns; |
4551ea7c | 2256 | |
2257 | Int_t labels[12]; | |
2258 | Int_t outlab[24]; | |
2259 | Int_t nlab = 0; | |
2260 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2261 | if (!cseed[iLayer].IsOK()) { | |
2262 | continue; | |
2263 | } | |
ca1e1e5b | 2264 | if (cseed[iLayer].GetLabels(0) >= 0) { |
2265 | labels[nlab] = cseed[iLayer].GetLabels(0); | |
69b55c55 | 2266 | nlab++; |
2267 | } | |
ca1e1e5b | 2268 | if (cseed[iLayer].GetLabels(1) >= 0) { |
2269 | labels[nlab] = cseed[iLayer].GetLabels(1); | |
69b55c55 | 2270 | nlab++; |
4551ea7c | 2271 | } |
69b55c55 | 2272 | } |
2273 | Freq(nlab,labels,outlab,kFALSE); | |
4551ea7c | 2274 | Int_t label = outlab[0]; |
2275 | Int_t frequency = outlab[1]; | |
2276 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2277 | cseed[iLayer].SetFreq(frequency); |
2278 | cseed[iLayer].SetC(cR); | |
2279 | cseed[iLayer].SetCC(cC); | |
2280 | cseed[iLayer].SetChi2(chi2TR); | |
2281 | cseed[iLayer].SetChi2Z(chi2ZF); | |
69b55c55 | 2282 | } |
33744e5d | 2283 | |
2284 | // Debugging print | |
4551ea7c | 2285 | if (1 || (!isFake)) { |
69b55c55 | 2286 | Float_t zvertex = GetZ(); |
4551ea7c | 2287 | TTreeSRedirector &cstream = *fDebugStreamer; |
2288 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2289 | cstream << "Seeds1" | |
2290 | << "isFake=" << isFake | |
2291 | << "Vertex=" << zvertex | |
2292 | << "Rieman2.=" << &rieman2 | |
2293 | << "Rieman.=" << &rieman | |
2294 | << "Xref=" << xref | |
2295 | << "X0=" << xcl[0] | |
2296 | << "X1=" << xcl[1] | |
2297 | << "X2=" << xcl[2] | |
2298 | << "X3=" << xcl[3] | |
2299 | << "X4=" << xcl[4] | |
2300 | << "X5=" << xcl[5] | |
2301 | << "Chi2R=" << chi2R | |
2302 | << "Chi2Z=" << chi2Z | |
2303 | << "Chi2RF=" << chi2RF // Chi2 of trackletes on full track | |
2304 | << "Chi2ZF=" << chi2ZF // Chi2 z on tracklets on full track | |
2305 | << "Chi2ZT2=" << chi2ZT2 // Chi2 z on tracklets on full track - rieman tilt | |
2306 | << "Chi2ZTC=" << chi2ZTC // Chi2 z on tracklets on full track - rieman tilt const | |
2307 | << "Chi2TR=" << chi2TR // Chi2 without vertex constrain | |
2308 | << "Chi2TC=" << chi2TC // Chi2 with vertex constrain | |
2309 | << "C=" << curv // Non constrained - no tilt correction | |
2310 | << "DR=" << dR // DR parameter - tilt correction | |
2311 | << "DCA=" << dca // DCA - tilt correction | |
2312 | << "CR=" << cR // Non constrained curvature - tilt correction | |
2313 | << "CC=" << cC // Constrained curvature | |
2314 | << "Polz0=" << polz0c | |
2315 | << "Polz1=" << polz1c | |
2316 | << "RPolz0=" << rpolz0 | |
2317 | << "RPolz1=" << rpolz1 | |
2318 | << "Ncl=" << nclusters | |
2319 | << "Nlayers=" << nlayers | |
2320 | << "NUsedS=" << nusedCl | |
2321 | << "NUsed=" << nusedf | |
2322 | << "Findable=" << findable | |
2323 | << "Like=" << like | |
2324 | << "LikePrim=" << likePrim | |
2325 | << "Likechi2C=" << likechi2C | |
2326 | << "Likechi2TR=" << likechi2TR | |
2327 | << "Likezf=" << likezf | |
2328 | << "LikeF=" << seedquality2[registered] | |
2329 | << "S0.=" << &cseed[0] | |
2330 | << "S1.=" << &cseed[1] | |
2331 | << "S2.=" << &cseed[2] | |
2332 | << "S3.=" << &cseed[3] | |
2333 | << "S4.=" << &cseed[4] | |
2334 | << "S5.=" << &cseed[5] | |
2335 | << "SB0.=" << &seedb[0] | |
2336 | << "SB1.=" << &seedb[1] | |
2337 | << "SB2.=" << &seedb[2] | |
2338 | << "SB3.=" << &seedb[3] | |
2339 | << "SB4.=" << &seedb[4] | |
2340 | << "SB5.=" << &seedb[5] | |
2341 | << "Label=" << label | |
2342 | << "Freq=" << frequency | |
2343 | << "sLayer=" << sLayer | |
2344 | << "\n"; | |
2345 | } | |
69b55c55 | 2346 | } |
4551ea7c | 2347 | |
2348 | if (registered<kMaxSeed - 1) { | |
69b55c55 | 2349 | registered++; |
2350 | cseed = seed[registered]; | |
2351 | } | |
4551ea7c | 2352 | |
2353 | } // End of loop over layer 1 | |
2354 | ||
2355 | } // End of loop over layer 0 | |
2356 | ||
2357 | } // End of loop over layer 3 | |
2358 | ||
2359 | } // End of loop over seeding time bins | |
2360 | ||
69b55c55 | 2361 | // |
4551ea7c | 2362 | // Choose best |
69b55c55 | 2363 | // |
4551ea7c | 2364 | |
69b55c55 | 2365 | TMath::Sort(registered,seedquality2,sort,kTRUE); |
c6f438c0 | 2366 | Bool_t signedseed[kMaxSeed]; |
4551ea7c | 2367 | for (Int_t i = 0; i < registered; i++) { |
2368 | signedseed[i] = kFALSE; | |
69b55c55 | 2369 | } |
4551ea7c | 2370 | |
2371 | for (Int_t iter = 0; iter < 5; iter++) { | |
2372 | ||
2373 | for (Int_t iseed = 0; iseed < registered; iseed++) { | |
2374 | ||
69b55c55 | 2375 | Int_t index = sort[iseed]; |
4551ea7c | 2376 | if (signedseed[index]) { |
2377 | continue; | |
2378 | } | |
69b55c55 | 2379 | Int_t labelsall[1000]; |
4551ea7c | 2380 | Int_t nlabelsall = 0; |
2381 | Int_t naccepted = 0;; | |
2382 | Int_t sLayer = seedlayer[index]; | |
2383 | Int_t ncl = 0; | |
2384 | Int_t nused = 0; | |
2385 | Int_t nlayers = 0; | |
69b55c55 | 2386 | Int_t findable = 0; |
4551ea7c | 2387 | |
2388 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2389 | ||
ca1e1e5b | 2390 | if (TMath::Abs(seed[index][jLayer].GetYref(0) / xcl[jLayer]) < 0.15) { |
69b55c55 | 2391 | findable++; |
4551ea7c | 2392 | } |
2393 | if (seed[index][jLayer].IsOK()) { | |
69b55c55 | 2394 | seed[index][jLayer].UpdateUsed(); |
ca1e1e5b | 2395 | ncl +=seed[index][jLayer].GetN2(); |
2396 | nused +=seed[index][jLayer].GetNUsed(); | |
69b55c55 | 2397 | nlayers++; |
4551ea7c | 2398 | // Cooking label |
2399 | for (Int_t itime = 0; itime < 25; itime++) { | |
ca1e1e5b | 2400 | if (seed[index][jLayer].IsUsable(itime)) { |
69b55c55 | 2401 | naccepted++; |
4551ea7c | 2402 | for (Int_t ilab = 0; ilab < 3; ilab++) { |
ca1e1e5b | 2403 | Int_t tindex = seed[index][jLayer].GetClusters(itime)->GetLabel(ilab); |
4551ea7c | 2404 | if (tindex >= 0) { |
69b55c55 | 2405 | labelsall[nlabelsall] = tindex; |
2406 | nlabelsall++; | |
2407 | } | |
2408 | } | |
2409 | } | |
2410 | } | |
2411 | } | |
4551ea7c | 2412 | |
69b55c55 | 2413 | } |
4551ea7c | 2414 | |
2415 | if (nused > 30) { | |
2416 | continue; | |
69b55c55 | 2417 | } |
4551ea7c | 2418 | |
2419 | if (iter == 0) { | |
2420 | if (nlayers < 6) { | |
2421 | continue; | |
2422 | } | |
2423 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2424 | continue; // Gold | |
2425 | } | |
7ad19338 | 2426 | } |
4551ea7c | 2427 | |
2428 | if (iter == 1) { | |
2429 | if (nlayers < findable) { | |
2430 | continue; | |
2431 | } | |
2432 | if (TMath::Log(0.000000001+seedquality2[index]) < -4.0) { | |
2433 | continue; | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | if (iter == 2) { | |
2438 | if ((nlayers == findable) || | |
2439 | (nlayers == 6)) { | |
2440 | continue; | |
2441 | } | |
2442 | if (TMath::Log(0.000000001+seedquality2[index]) < -6.0) { | |
2443 | continue; | |
2444 | } | |
69b55c55 | 2445 | } |
4551ea7c | 2446 | |
2447 | if (iter == 3) { | |
2448 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2449 | continue; | |
2450 | } | |
69b55c55 | 2451 | } |
4551ea7c | 2452 | |
2453 | if (iter == 4) { | |
2454 | if (TMath::Log(0.000000001+seedquality2[index]) - nused/(nlayers-3.0) < -15.0) { | |
2455 | continue; | |
2456 | } | |
69b55c55 | 2457 | } |
4551ea7c | 2458 | |
69b55c55 | 2459 | signedseed[index] = kTRUE; |
4551ea7c | 2460 | |
2461 | Int_t labels[1000]; | |
2462 | Int_t outlab[1000]; | |
2463 | Int_t nlab = 0; | |
2464 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2465 | if (seed[index][iLayer].IsOK()) { | |
ca1e1e5b | 2466 | if (seed[index][iLayer].GetLabels(0) >= 0) { |
2467 | labels[nlab] = seed[index][iLayer].GetLabels(0); | |
69b55c55 | 2468 | nlab++; |
2469 | } | |
ca1e1e5b | 2470 | if (seed[index][iLayer].GetLabels(1) >= 0) { |
2471 | labels[nlab] = seed[index][iLayer].GetLabels(1); | |
69b55c55 | 2472 | nlab++; |
4551ea7c | 2473 | } |
2474 | } | |
7ad19338 | 2475 | } |
69b55c55 | 2476 | Freq(nlab,labels,outlab,kFALSE); |
4551ea7c | 2477 | Int_t label = outlab[0]; |
2478 | Int_t frequency = outlab[1]; | |
69b55c55 | 2479 | Freq(nlabelsall,labelsall,outlab,kFALSE); |
4551ea7c | 2480 | Int_t label1 = outlab[0]; |
2481 | Int_t label2 = outlab[2]; | |
2482 | Float_t fakeratio = (naccepted - outlab[1]) / Float_t(naccepted); | |
2483 | Float_t ratio = Float_t(nused) / Float_t(ncl); | |
2484 | if (ratio < 0.25) { | |
2485 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2486 | if ((seed[index][jLayer].IsOK()) && | |
ca1e1e5b | 2487 | (TMath::Abs(seed[index][jLayer].GetYfit(1) - seed[index][jLayer].GetYfit(1)) < 0.2)) { |
4551ea7c | 2488 | seed[index][jLayer].UseClusters(); // Sign gold |
2489 | } | |
69b55c55 | 2490 | } |
7ad19338 | 2491 | } |
4551ea7c | 2492 | |
69b55c55 | 2493 | Int_t eventNr = esd->GetEventNumber(); |
4551ea7c | 2494 | TTreeSRedirector &cstream = *fDebugStreamer; |
2495 | ||
69b55c55 | 2496 | // |
4551ea7c | 2497 | // Register seed |
69b55c55 | 2498 | // |
4551ea7c | 2499 | AliTRDtrack *track = RegisterSeed(seed[index],seedparams[index]); |
2500 | AliTRDtrack dummy; | |
2501 | if (!track) { | |
2502 | track = &dummy; | |
2503 | } | |
2504 | else { | |
69b55c55 | 2505 | AliESDtrack esdtrack; |
4551ea7c | 2506 | esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout); |
69b55c55 | 2507 | esdtrack.SetLabel(label); |
2508 | esd->AddTrack(&esdtrack); | |
4551ea7c | 2509 | TTreeSRedirector &cstream = *fDebugStreamer; |
2510 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2511 | cstream << "Tracks" | |
2512 | << "EventNr=" << eventNr | |
2513 | << "ESD.=" << &esdtrack | |
2514 | << "trd.=" << track | |
2515 | << "trdback.=" << track | |
2516 | << "\n"; | |
2517 | } | |
7ad19338 | 2518 | } |
4551ea7c | 2519 | |
2520 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2521 | cstream << "Seeds2" | |
2522 | << "Iter=" << iter | |
2523 | << "Track.=" << track | |
2524 | << "Like=" << seedquality[index] | |
2525 | << "LikeF=" << seedquality2[index] | |
2526 | << "S0.=" << &seed[index][0] | |
2527 | << "S1.=" << &seed[index][1] | |
2528 | << "S2.=" << &seed[index][2] | |
2529 | << "S3.=" << &seed[index][3] | |
2530 | << "S4.=" << &seed[index][4] | |
2531 | << "S5.=" << &seed[index][5] | |
2532 | << "Label=" << label | |
2533 | << "Label1=" << label1 | |
2534 | << "Label2=" << label2 | |
2535 | << "FakeRatio=" << fakeratio | |
2536 | << "Freq=" << frequency | |
2537 | << "Ncl=" << ncl | |
2538 | << "Nlayers=" << nlayers | |
2539 | << "Findable=" << findable | |
2540 | << "NUsed=" << nused | |
2541 | << "sLayer=" << sLayer | |
2542 | << "EventNr=" << eventNr | |
2543 | << "\n"; | |
2544 | } | |
2545 | ||
2546 | } // Loop: iseed | |
2547 | ||
2548 | } // Loop: iter | |
2549 | ||
2550 | } // End of loop over sectors | |
75bd7f81 | 2551 | |
69b55c55 | 2552 | delete [] pseed; |
75bd7f81 | 2553 | |
69b55c55 | 2554 | } |
2555 | ||
5443e65e | 2556 | //_____________________________________________________________________________ |
4551ea7c | 2557 | Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const |
5443e65e | 2558 | { |
2559 | // | |
a819a5f7 | 2560 | // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0) |
2561 | // from the file. The names of the cluster tree and branches | |
2562 | // should match the ones used in AliTRDclusterizer::WriteClusters() | |
2563 | // | |
75bd7f81 | 2564 | |
4551ea7c | 2565 | Int_t nsize = Int_t(clusterTree->GetTotBytes() / (sizeof(AliTRDcluster))); |
6c94f330 | 2566 | TObjArray *clusterArray = new TObjArray(nsize+1000); |
5443e65e | 2567 | |
4551ea7c | 2568 | TBranch *branch = clusterTree->GetBranch("TRDcluster"); |
c630aafd | 2569 | if (!branch) { |
4551ea7c | 2570 | AliError("Can't get the branch !"); |
c630aafd | 2571 | return 1; |
2572 | } | |
029cd327 | 2573 | branch->SetAddress(&clusterArray); |
5443e65e | 2574 | |
a819a5f7 | 2575 | // Loop through all entries in the tree |
4551ea7c | 2576 | Int_t nEntries = (Int_t) clusterTree->GetEntries(); |
2577 | Int_t nbytes = 0; | |
a819a5f7 | 2578 | AliTRDcluster *c = 0; |
a819a5f7 | 2579 | for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) { |
2580 | ||
2581 | // Import the tree | |
4551ea7c | 2582 | nbytes += clusterTree->GetEvent(iEntry); |
5443e65e | 2583 | |
a819a5f7 | 2584 | // Get the number of points in the detector |
029cd327 | 2585 | Int_t nCluster = clusterArray->GetEntriesFast(); |
5443e65e | 2586 | |
a819a5f7 | 2587 | // Loop through all TRD digits |
2588 | for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) { | |
4551ea7c | 2589 | c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster); |
4f1c04d3 | 2590 | AliTRDcluster *co = c; |
a819a5f7 | 2591 | array->AddLast(co); |
4f1c04d3 | 2592 | clusterArray->RemoveAt(iCluster); |
a819a5f7 | 2593 | } |
4551ea7c | 2594 | |
a819a5f7 | 2595 | } |
2596 | ||
029cd327 | 2597 | delete clusterArray; |
5443e65e | 2598 | |
c630aafd | 2599 | return 0; |
75bd7f81 | 2600 | |
a819a5f7 | 2601 | } |
2602 | ||
75bd7f81 | 2603 | //_____________________________________________________________________________ |
4551ea7c | 2604 | Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint &p) const |
3551db50 | 2605 | { |
2606 | // | |
2607 | // Get track space point with index i | |
2608 | // Origin: C.Cheshkov | |
2609 | // | |
2610 | ||
4551ea7c | 2611 | AliTRDcluster *cl = (AliTRDcluster *) fClusters->UncheckedAt(index); |
2612 | Int_t idet = cl->GetDetector(); | |
2613 | Int_t isector = fGeom->GetSector(idet); | |
2614 | Int_t ichamber = fGeom->GetChamber(idet); | |
2615 | Int_t iplan = fGeom->GetPlane(idet); | |
3551db50 | 2616 | Double_t local[3]; |
4551ea7c | 2617 | local[0] = GetX(isector,iplan,cl->GetLocalTimeBin()); |
2618 | local[1] = cl->GetY(); | |
2619 | local[2] = cl->GetZ(); | |
3551db50 | 2620 | Double_t global[3]; |
2621 | fGeom->RotateBack(idet,local,global); | |
2622 | p.SetXYZ(global[0],global[1],global[2]); | |
2623 | AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; | |
2624 | switch (iplan) { | |
2625 | case 0: | |
2626 | iLayer = AliAlignObj::kTRD1; | |
2627 | break; | |
2628 | case 1: | |
2629 | iLayer = AliAlignObj::kTRD2; | |
2630 | break; | |
2631 | case 2: | |
2632 | iLayer = AliAlignObj::kTRD3; | |
2633 | break; | |
2634 | case 3: | |
2635 | iLayer = AliAlignObj::kTRD4; | |
2636 | break; | |
2637 | case 4: | |
2638 | iLayer = AliAlignObj::kTRD5; | |
2639 | break; | |
2640 | case 5: | |
2641 | iLayer = AliAlignObj::kTRD6; | |
2642 | break; | |
2643 | }; | |
4551ea7c | 2644 | Int_t modId = isector * fGeom->Ncham() + ichamber; |
3551db50 | 2645 | UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); |
2646 | p.SetVolumeID(volid); | |
2647 | ||
2648 | return kTRUE; | |
2649 | ||
2650 | } | |
2651 | ||
75bd7f81 | 2652 | //_____________________________________________________________________________ |
4551ea7c | 2653 | void AliTRDtracker::CookLabel(AliKalmanTrack *pt, Float_t wrong) const |
029cd327 | 2654 | { |
2655 | // | |
2656 | // This cooks a label. Mmmmh, smells good... | |
2657 | // | |
46d29e70 | 2658 | |
4551ea7c | 2659 | Int_t label = 123456789; |
2660 | Int_t index; | |
2661 | Int_t i; | |
2662 | Int_t j; | |
2663 | Int_t ncl = pt->GetNumberOfClusters(); | |
2664 | ||
2665 | const Int_t kRange = fTrSec[0]->GetOuterTimeBin() + 1; | |
5443e65e | 2666 | |
029cd327 | 2667 | Bool_t labelAdded; |
46d29e70 | 2668 | |
6c94f330 | 2669 | Int_t **s = new Int_t* [kRange]; |
4551ea7c | 2670 | for (i = 0; i < kRange; i++) { |
d1b06c24 | 2671 | s[i] = new Int_t[2]; |
2672 | } | |
4551ea7c | 2673 | for (i = 0; i < kRange; i++) { |
2674 | s[i][0] = -1; | |
2675 | s[i][1] = 0; | |
46d29e70 | 2676 | } |
2677 | ||
4551ea7c | 2678 | Int_t t0; |
2679 | Int_t t1; | |
2680 | Int_t t2; | |
2681 | ||
2682 | for (i = 0; i < ncl; i++) { | |
2683 | index = pt->GetClusterIndex(i); | |
2684 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
6c94f330 | 2685 | t0=c->GetLabel(0); |
2686 | t1=c->GetLabel(1); | |
2687 | t2=c->GetLabel(2); | |
46d29e70 | 2688 | } |
2689 | ||
4551ea7c | 2690 | for (i = 0; i < ncl; i++) { |
2691 | index = pt->GetClusterIndex(i); | |
2692 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
2693 | for (Int_t k = 0; k < 3; k++) { | |
2694 | label = c->GetLabel(k); | |
2695 | labelAdded = kFALSE; | |
2696 | j = 0; | |
46d29e70 | 2697 | if (label >= 0) { |
4551ea7c | 2698 | while ((!labelAdded) && (j < kRange)) { |
2699 | if ((s[j][0] == label) || | |
2700 | (s[j][1] == 0)) { | |
2701 | s[j][0] = label; | |
2702 | s[j][1] = s[j][1] + 1; | |
2703 | labelAdded = kTRUE; | |
a9814c09 | 2704 | } |
2705 | j++; | |
2706 | } | |
46d29e70 | 2707 | } |
2708 | } | |
2709 | } | |
2710 | ||
4551ea7c | 2711 | Int_t max = 0; |
6c94f330 | 2712 | label = -123456789; |
46d29e70 | 2713 | |
4551ea7c | 2714 | for (i = 0; i < kRange; i++) { |
2715 | if (s[i][1] > max) { | |
2716 | max = s[i][1]; | |
2717 | label = s[i][0]; | |
46d29e70 | 2718 | } |
2719 | } | |
5443e65e | 2720 | |
4551ea7c | 2721 | for (i = 0; i < kRange; i++) { |
6c94f330 | 2722 | delete []s[i]; |
5443e65e | 2723 | } |
2724 | ||
6c94f330 | 2725 | delete []s; |
5443e65e | 2726 | |
4551ea7c | 2727 | if ((1.0 - Float_t(max)/ncl) > wrong) { |
2728 | label = -label; | |
2729 | } | |
5443e65e | 2730 | |
2731 | pt->SetLabel(label); | |
2732 | ||
46d29e70 | 2733 | } |
2734 | ||
75bd7f81 | 2735 | //_____________________________________________________________________________ |
4551ea7c | 2736 | void AliTRDtracker::UseClusters(const AliKalmanTrack *t, Int_t from) const |
029cd327 | 2737 | { |
2738 | // | |
2739 | // Use clusters, but don't abuse them! | |
2740 | // | |
75bd7f81 | 2741 | |
4551ea7c | 2742 | const Float_t kmaxchi2 = 18; |
2743 | const Float_t kmincl = 10; | |
2744 | ||
2745 | AliTRDtrack *track = (AliTRDtrack *) t; | |
2746 | ||
2747 | Int_t ncl = t->GetNumberOfClusters(); | |
2748 | for (Int_t i = from; i < ncl; i++) { | |
2749 | Int_t index = t->GetClusterIndex(i); | |
2750 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
69b55c55 | 2751 | Int_t iplane = fGeom->GetPlane(c->GetDetector()); |
27eaf44b | 2752 | if (track->GetTracklets(iplane).GetChi2() > kmaxchi2) { |
4551ea7c | 2753 | continue; |
2754 | } | |
27eaf44b | 2755 | if (track->GetTracklets(iplane).GetN() < kmincl) { |
4551ea7c | 2756 | continue; |
2757 | } | |
2758 | if (!(c->IsUsed())) { | |
2759 | c->Use(); | |
2760 | } | |
5443e65e | 2761 | } |
5443e65e | 2762 | |
75bd7f81 | 2763 | } |
5443e65e | 2764 | |
75bd7f81 | 2765 | //_____________________________________________________________________________ |
029cd327 | 2766 | Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const |
5443e65e | 2767 | { |
75bd7f81 | 2768 | // |
5443e65e | 2769 | // Parametrised "expected" error of the cluster reconstruction in Y |
75bd7f81 | 2770 | // |
5443e65e | 2771 | |
2772 | Double_t s = 0.08 * 0.08; | |
2773 | return s; | |
75bd7f81 | 2774 | |
5443e65e | 2775 | } |
2776 | ||
75bd7f81 | 2777 | //_____________________________________________________________________________ |
029cd327 | 2778 | Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t , Double_t ) const |
0a29d0f1 | 2779 | { |
75bd7f81 | 2780 | // |
5443e65e | 2781 | // Parametrised "expected" error of the cluster reconstruction in Z |
75bd7f81 | 2782 | // |
5443e65e | 2783 | |
4551ea7c | 2784 | Double_t s = 9.0 * 9.0 / 12.0; |
5443e65e | 2785 | return s; |
75bd7f81 | 2786 | |
5443e65e | 2787 | } |
2788 | ||
75bd7f81 | 2789 | //_____________________________________________________________________________ |
029cd327 | 2790 | Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const |
5443e65e | 2791 | { |
2792 | // | |
029cd327 | 2793 | // Returns radial position which corresponds to time bin <localTB> |
5443e65e | 2794 | // in tracking sector <sector> and plane <plane> |
2795 | // | |
2796 | ||
6c94f330 | 2797 | Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, localTB); |
4551ea7c | 2798 | Int_t pl = fTrSec[sector]->GetLayerNumber(index); |
2799 | ||
5443e65e | 2800 | return fTrSec[sector]->GetLayer(pl)->GetX(); |
2801 | ||
2802 | } | |
2803 | ||
75bd7f81 | 2804 | //_____________________________________________________________________________ |
2805 | AliTRDtracker::AliTRDpropagationLayer | |
2806 | ::AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho | |
2807 | , Double_t radLength, Int_t tbIndex, Int_t plane) | |
ad670fba | 2808 | :fN(0) |
2809 | ,fSec(0) | |
2810 | ,fClusters(NULL) | |
2811 | ,fIndex(NULL) | |
2812 | ,fX(x) | |
2813 | ,fdX(dx) | |
2814 | ,fRho(rho) | |
2815 | ,fX0(radLength) | |
2816 | ,fTimeBinIndex(tbIndex) | |
2817 | ,fPlane(plane) | |
2818 | ,fYmax(0) | |
2819 | ,fYmaxSensitive(0) | |
2820 | ,fHole(kFALSE) | |
2821 | ,fHoleZc(0) | |
2822 | ,fHoleZmax(0) | |
2823 | ,fHoleYc(0) | |
2824 | ,fHoleYmax(0) | |
2825 | ,fHoleRho(0) | |
2826 | ,fHoleX0(0) | |
5443e65e | 2827 | { |
0a29d0f1 | 2828 | // |
5443e65e | 2829 | // AliTRDpropagationLayer constructor |
0a29d0f1 | 2830 | // |
46d29e70 | 2831 | |
ad670fba | 2832 | for (Int_t i = 0; i < (Int_t) kZones; i++) { |
2833 | fZc[i] = 0; | |
2834 | fZmax[i] = 0; | |
a819a5f7 | 2835 | } |
5443e65e | 2836 | |
ad670fba | 2837 | if (fTimeBinIndex >= 0) { |
029cd327 | 2838 | fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin]; |
ad670fba | 2839 | fIndex = new UInt_t[kMaxClusterPerTimeBin]; |
a819a5f7 | 2840 | } |
46d29e70 | 2841 | |
ad670fba | 2842 | for (Int_t i = 0; i < 5; i++) { |
2843 | fIsHole[i] = kFALSE; | |
2844 | } | |
5443e65e | 2845 | |
2846 | } | |
2847 | ||
75bd7f81 | 2848 | //_____________________________________________________________________________ |
2849 | void AliTRDtracker::AliTRDpropagationLayer | |
2850 | ::SetHole(Double_t Zmax, Double_t Ymax, Double_t rho | |
2851 | , Double_t radLength, Double_t Yc, Double_t Zc) | |
5443e65e | 2852 | { |
2853 | // | |
2854 | // Sets hole in the layer | |
2855 | // | |
75bd7f81 | 2856 | |
4551ea7c | 2857 | fHole = kTRUE; |
2858 | fHoleZc = Zc; | |
5443e65e | 2859 | fHoleZmax = Zmax; |
4551ea7c | 2860 | fHoleYc = Yc; |
5443e65e | 2861 | fHoleYmax = Ymax; |
4551ea7c | 2862 | fHoleRho = rho; |
2863 | fHoleX0 = radLength; | |
75bd7f81 | 2864 | |
5443e65e | 2865 | } |
46d29e70 | 2866 | |
75bd7f81 | 2867 | //_____________________________________________________________________________ |
2868 | AliTRDtracker::AliTRDtrackingSector | |
ad670fba | 2869 | ::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs) |
2870 | :fN(0) | |
2871 | ,fGeom(geo) | |
2872 | ,fGeomSector(gs) | |
5443e65e | 2873 | { |
2874 | // | |
2875 | // AliTRDtrackingSector Constructor | |
2876 | // | |
75bd7f81 | 2877 | |
ad670fba | 2878 | AliTRDpadPlane *padPlane = 0; |
2879 | AliTRDpropagationLayer *ppl = 0; | |
a5cadd36 | 2880 | |
ad670fba | 2881 | // Get holes description from geometry |
3c625a9b | 2882 | Bool_t holes[AliTRDgeometry::kNcham]; |
ad670fba | 2883 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3c625a9b | 2884 | holes[icham] = fGeom->IsHole(0,icham,gs); |
3c625a9b | 2885 | } |
3c625a9b | 2886 | |
ad670fba | 2887 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { |
2888 | fTimeBinIndex[i] = -1; | |
2889 | } | |
5443e65e | 2890 | |
ad670fba | 2891 | Double_t x; |
2892 | Double_t dx; | |
2893 | Double_t rho; | |
2894 | Double_t radLength; | |
5443e65e | 2895 | |
ad670fba | 2896 | // Add layers for each of the planes |
2897 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
a305677e | 2898 | //Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region |
5443e65e | 2899 | |
ad670fba | 2900 | const Int_t kNchambers = AliTRDgeometry::Ncham(); |
a305677e | 2901 | Int_t tbIndex; |
ad670fba | 2902 | Double_t ymax = 0; |
2903 | Double_t ymaxsensitive = 0; | |
2904 | Double_t *zc = new Double_t[kNchambers]; | |
2905 | Double_t *zmax = new Double_t[kNchambers]; | |
3c625a9b | 2906 | Double_t *zmaxsensitive = new Double_t[kNchambers]; |
5443e65e | 2907 | |
ad670fba | 2908 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); |
2909 | if (!commonParam) { | |
030b4415 | 2910 | AliErrorGeneral("AliTRDtrackingSector::Ctor" |
2911 | ,"Could not get common parameters\n"); | |
3551db50 | 2912 | return; |
2913 | } | |
2914 | ||
ad670fba | 2915 | for (Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { |
2916 | ||
2917 | ymax = fGeom->GetChamberWidth(plane) / 2.0; | |
2918 | padPlane = commonParam->GetPadPlane(plane,0); | |
2919 | ymaxsensitive = (padPlane->GetColSize(1) * padPlane->GetNcols() - 4.0) / 2.0; | |
2920 | ||
2921 | for (Int_t ch = 0; ch < kNchambers; ch++) { | |
2922 | zmax[ch] = fGeom->GetChamberLength(plane,ch) / 2.0; | |
2923 | Float_t pad = padPlane->GetRowSize(1); | |
2924 | Float_t row0 = commonParam->GetRow0(plane,ch,0); | |
2925 | Int_t nPads = commonParam->GetRowMax(plane,ch,0); | |
2926 | zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0; | |
2927 | zc[ch] = -(pad * nPads) / 2.0 + row0; | |
5443e65e | 2928 | } |
2929 | ||
ad670fba | 2930 | dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) |
2931 | / AliTRDcalibDB::Instance()->GetSamplingFrequency(); | |
2932 | rho = 0.00295 * 0.85; //???? | |
2933 | radLength = 11.0; | |
5443e65e | 2934 | |
3551db50 | 2935 | Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane); |
a305677e | 2936 | //Double_t xbottom = x0 - dxDrift; |
ad670fba | 2937 | //Double_t xtop = x0 + dxAmp; |
2938 | ||
59393e34 | 2939 | Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
ad670fba | 2940 | for (Int_t iTime = 0; iTime < nTimeBins; iTime++) { |
2941 | ||
2942 | Double_t xlayer = iTime * dx - dxAmp; | |
2943 | //if (xlayer<0) xlayer = dxAmp / 2.0; | |
59393e34 | 2944 | x = x0 - xlayer; |
ad670fba | 2945 | |
2946 | tbIndex = CookTimeBinIndex(plane,iTime); | |
2947 | ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex,plane); | |
3c625a9b | 2948 | ppl->SetYmax(ymax,ymaxsensitive); |
ad670fba | 2949 | ppl->SetZ(zc,zmax,zmaxsensitive); |
3c625a9b | 2950 | ppl->SetHoles(holes); |
59393e34 | 2951 | InsertLayer(ppl); |
ad670fba | 2952 | |
5443e65e | 2953 | } |
ad670fba | 2954 | |
5443e65e | 2955 | } |
2956 | ||
5443e65e | 2957 | MapTimeBinLayers(); |
ad670fba | 2958 | |
029cd327 | 2959 | delete [] zc; |
2960 | delete [] zmax; | |
4f1c04d3 | 2961 | delete [] zmaxsensitive; |
5443e65e | 2962 | |
2963 | } | |
2964 | ||
ad670fba | 2965 | //_____________________________________________________________________________ |
2966 | AliTRDtracker::AliTRDtrackingSector | |
2967 | ::AliTRDtrackingSector(const AliTRDtrackingSector &/*t*/) | |
2968 | :fN(0) | |
2969 | ,fGeom(0) | |
2970 | ,fGeomSector(0) | |
2971 | { | |
2972 | // | |
2973 | // Copy constructor | |
2974 | // | |
2975 | ||
2976 | } | |
2977 | ||
75bd7f81 | 2978 | //_____________________________________________________________________________ |
2979 | Int_t AliTRDtracker::AliTRDtrackingSector | |
2980 | ::CookTimeBinIndex(Int_t plane, Int_t localTB) const | |
5443e65e | 2981 | { |
2982 | // | |
6c94f330 | 2983 | // depending on the digitization parameters calculates "global" |
029cd327 | 2984 | // time bin index for timebin <localTB> in plane <plane> |
5443e65e | 2985 | // |
59393e34 | 2986 | // |
75bd7f81 | 2987 | |
59393e34 | 2988 | Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
4551ea7c | 2989 | Int_t gtb = (plane+1) * tbPerPlane - localTB - 1; |
2990 | if (localTB < 0) { | |
2991 | return -1; | |
2992 | } | |
2993 | if (gtb < 0) { | |
2994 | return -1; | |
2995 | } | |
75bd7f81 | 2996 | |
5443e65e | 2997 | return gtb; |
5443e65e | 2998 | |
75bd7f81 | 2999 | } |
5443e65e | 3000 | |
75bd7f81 | 3001 | //_____________________________________________________________________________ |
3002 | void AliTRDtracker::AliTRDtrackingSector | |
3003 | ::MapTimeBinLayers() | |
5443e65e | 3004 | { |
3005 | // | |
3006 | // For all sensitive time bins sets corresponding layer index | |
3007 | // in the array fTimeBins | |
3008 | // | |
3009 | ||
3010 | Int_t index; | |
3011 | ||
4551ea7c | 3012 | for (Int_t i = 0; i < fN; i++) { |
3013 | ||
5443e65e | 3014 | index = fLayers[i]->GetTimeBinIndex(); |
6c94f330 | 3015 | |
4551ea7c | 3016 | if (index < 0) { |
3017 | continue; | |
3018 | } | |
3019 | if (index >= (Int_t) kMaxTimeBinIndex) { | |
3020 | //AliWarning(Form("Index %d exceeds allowed maximum of %d!\n" | |
3021 | // ,index,kMaxTimeBinIndex-1)); | |
5443e65e | 3022 | continue; |
3023 | } | |
4551ea7c | 3024 | |
5443e65e | 3025 | fTimeBinIndex[index] = i; |
4551ea7c | 3026 | |
5443e65e | 3027 | } |
5443e65e | 3028 | |
75bd7f81 | 3029 | } |
5443e65e | 3030 | |
75bd7f81 | 3031 | //_____________________________________________________________________________ |
3032 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3033 | ::GetLayerNumber(Double_t x) const | |
5443e65e | 3034 | { |
3035 | // | |
3036 | // Returns the number of time bin which in radial position is closest to <x> | |
3037 | // | |
3038 | ||
4551ea7c | 3039 | if (x >= fLayers[fN-1]->GetX()) { |
3040 | return fN - 1; | |
3041 | } | |
3042 | if (x <= fLayers[ 0]->GetX()) { | |
3043 | return 0; | |
3044 | } | |
3045 | ||
3046 | Int_t b = 0; | |
3047 | Int_t e = fN - 1; | |
3048 | Int_t m = (b + e) / 2; | |
ad670fba | 3049 | |
4551ea7c | 3050 | for ( ; b < e; m = (b + e) / 2) { |
3051 | if (x > fLayers[m]->GetX()) { | |
3052 | b = m + 1; | |
3053 | } | |
3054 | else { | |
3055 | e = m; | |
3056 | } | |
5443e65e | 3057 | } |
75bd7f81 | 3058 | |
4551ea7c | 3059 | if (TMath::Abs(x - fLayers[m]->GetX()) > TMath::Abs(x - fLayers[m+1]->GetX())) { |
3060 | return m + 1; | |
3061 | } | |
3062 | else { | |
3063 | return m; | |
3064 | } | |
5443e65e | 3065 | |
3066 | } | |
3067 | ||
75bd7f81 | 3068 | //_____________________________________________________________________________ |
3069 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3070 | ::GetInnerTimeBin() const | |
5443e65e | 3071 | { |
3072 | // | |
3073 | // Returns number of the innermost SENSITIVE propagation layer | |
3074 | // | |
3075 | ||
3076 | return GetLayerNumber(0); | |
5443e65e | 3077 | |
75bd7f81 | 3078 | } |
5443e65e | 3079 | |
75bd7f81 | 3080 | //_____________________________________________________________________________ |
3081 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3082 | ::GetOuterTimeBin() const | |
5443e65e | 3083 | { |
3084 | // | |
3085 | // Returns number of the outermost SENSITIVE time bin | |
3086 | // | |
3087 | ||
3088 | return GetLayerNumber(GetNumberOfTimeBins() - 1); | |
46d29e70 | 3089 | |
75bd7f81 | 3090 | } |
5443e65e | 3091 | |
75bd7f81 | 3092 | //_____________________________________________________________________________ |
3093 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3094 | ::GetNumberOfTimeBins() const | |
5443e65e | 3095 | { |
3096 | // | |
3097 | // Returns number of SENSITIVE time bins | |
3098 | // | |
3099 | ||
4551ea7c | 3100 | Int_t tb; |
3101 | Int_t layer; | |
3102 | ||
3103 | for (tb = kMaxTimeBinIndex - 1; tb >= 0; tb--) { | |
5443e65e | 3104 | layer = GetLayerNumber(tb); |
4551ea7c | 3105 | if (layer >= 0) { |
3106 | break; | |
3107 | } | |
5443e65e | 3108 | } |
75bd7f81 | 3109 | |
4551ea7c | 3110 | return tb + 1; |
5443e65e | 3111 | |
75bd7f81 | 3112 | } |
5443e65e | 3113 | |
75bd7f81 | 3114 | //_____________________________________________________________________________ |
3115 | void AliTRDtracker::AliTRDtrackingSector | |
4551ea7c | 3116 | ::InsertLayer(AliTRDpropagationLayer *pl) |
5443e65e | 3117 | { |
3118 | // | |
3119 | // Insert layer <pl> in fLayers array. | |
3120 | // Layers are sorted according to X coordinate. | |
75bd7f81 | 3121 | // |
5443e65e | 3122 | |
4551ea7c | 3123 | if (fN == ((Int_t) kMaxLayersPerSector)) { |
3124 | //AliWarning("Too many layers !\n"); | |
3125 | return; | |
3126 | } | |
3127 | ||
3128 | if (fN == 0) { | |
3129 | fLayers[fN++] = pl; | |
ad670fba | 3130 | return; |
3131 | } | |
3132 | ||
4551ea7c | 3133 | Int_t i = Find(pl->GetX()); |
3134 | ||
3135 | memmove(fLayers+i+1,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*)); | |
3136 | ||
3137 | fLayers[i] = pl; | |
3138 | fN++; | |
5443e65e | 3139 | |
3140 | } | |
3141 | ||
75bd7f81 | 3142 | //_____________________________________________________________________________ |
3143 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3144 | ::Find(Double_t x) const | |
5443e65e | 3145 | { |
3146 | // | |
3147 | // Returns index of the propagation layer nearest to X | |
3148 | // | |
3149 | ||
4551ea7c | 3150 | if (x <= fLayers[0]->GetX()) { |
3151 | return 0; | |
3152 | } | |
3153 | ||
3154 | if (x > fLayers[fN-1]->GetX()) { | |
3155 | return fN; | |
3156 | } | |
3157 | ||
3158 | Int_t b = 0; | |
3159 | Int_t e = fN-1; | |
3160 | Int_t m = (b + e) / 2; | |
3161 | ||
3162 | for (; b < e; m = (b + e) / 2) { | |
3163 | if (x > fLayers[m]->GetX()) { | |
3164 | b = m + 1; | |
3165 | } | |
3166 | else { | |
3167 | e = m; | |
3168 | } | |
5443e65e | 3169 | } |
7ad19338 | 3170 | |
75bd7f81 | 3171 | return m; |
7ad19338 | 3172 | |
75bd7f81 | 3173 | } |
7ad19338 | 3174 | |
75bd7f81 | 3175 | //_____________________________________________________________________________ |
3176 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3177 | ::SetZ(Double_t *center, Double_t *w, Double_t *wsensitive ) |
3c625a9b | 3178 | { |
3179 | // | |
6c94f330 | 3180 | // set centers and the width of sectors |
75bd7f81 | 3181 | // |
3182 | ||
4551ea7c | 3183 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3184 | fZc[icham] = center[icham]; | |
3185 | fZmax[icham] = w[icham]; | |
3c625a9b | 3186 | fZmaxSensitive[icham] = wsensitive[icham]; |
3c625a9b | 3187 | } |
75bd7f81 | 3188 | |
3c625a9b | 3189 | } |
5443e65e | 3190 | |
75bd7f81 | 3191 | //_____________________________________________________________________________ |
3c625a9b | 3192 | void AliTRDtracker::AliTRDpropagationLayer::SetHoles(Bool_t *holes) |
3193 | { | |
3194 | // | |
6c94f330 | 3195 | // set centers and the width of sectors |
75bd7f81 | 3196 | // |
3197 | ||
3c625a9b | 3198 | fHole = kFALSE; |
4551ea7c | 3199 | |
3200 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
3c625a9b | 3201 | fIsHole[icham] = holes[icham]; |
4551ea7c | 3202 | if (holes[icham]) { |
3203 | fHole = kTRUE; | |
3204 | } | |
3c625a9b | 3205 | } |
5443e65e | 3206 | |
75bd7f81 | 3207 | } |
5443e65e | 3208 | |
75bd7f81 | 3209 | //_____________________________________________________________________________ |
3210 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3211 | ::InsertCluster(AliTRDcluster *c, UInt_t index) |
75bd7f81 | 3212 | { |
3213 | // | |
3214 | // Insert cluster in cluster array. | |
3215 | // Clusters are sorted according to Y coordinate. | |
3216 | // | |
5443e65e | 3217 | |
4551ea7c | 3218 | if (fTimeBinIndex < 0) { |
3219 | //AliWarning("Attempt to insert cluster into non-sensitive time bin!\n"); | |
3220 | return; | |
3221 | } | |
3222 | ||
3223 | if (fN == (Int_t) kMaxClusterPerTimeBin) { | |
3224 | //AliWarning("Too many clusters !\n"); | |
5443e65e | 3225 | return; |
3226 | } | |
ad670fba | 3227 | |
4551ea7c | 3228 | if (fN == 0) { |
3229 | fIndex[0] = index; | |
3230 | fClusters[fN++] = c; | |
ad670fba | 3231 | return; |
3232 | } | |
4551ea7c | 3233 | |
3234 | Int_t i = Find(c->GetY()); | |
3235 | memmove(fClusters+i+1,fClusters+i,(fN-i)*sizeof(AliTRDcluster*)); | |
3236 | memmove(fIndex +i+1,fIndex +i,(fN-i)*sizeof(UInt_t)); | |
3237 | fIndex[i] = index; | |
3238 | fClusters[i] = c; | |
3239 | fN++; | |
5443e65e | 3240 | |
75bd7f81 | 3241 | } |
5443e65e | 3242 | |
75bd7f81 | 3243 | //_____________________________________________________________________________ |
3244 | Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const | |
3245 | { | |
3246 | // | |
3247 | // Returns index of the cluster nearest in Y | |
3248 | // | |
5443e65e | 3249 | |
4551ea7c | 3250 | if (fN <= 0) { |
3251 | return 0; | |
3252 | } | |
3253 | if (y <= fClusters[0]->GetY()) { | |
3254 | return 0; | |
3255 | } | |
3256 | if (y > fClusters[fN-1]->GetY()) { | |
3257 | return fN; | |
3258 | } | |
3259 | ||
3260 | Int_t b = 0; | |
3261 | Int_t e = fN - 1; | |
3262 | Int_t m = (b + e) / 2; | |
3263 | ||
3264 | for ( ; b < e; m = (b + e) / 2) { | |
3265 | if (y > fClusters[m]->GetY()) { | |
3266 | b = m + 1; | |
3267 | } | |
3268 | else { | |
3269 | e = m; | |
3270 | } | |
5443e65e | 3271 | } |
75bd7f81 | 3272 | |
5443e65e | 3273 | return m; |
75bd7f81 | 3274 | |
5443e65e | 3275 | } |
3276 | ||
75bd7f81 | 3277 | //_____________________________________________________________________________ |
3278 | Int_t AliTRDtracker::AliTRDpropagationLayer | |
3279 | ::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad | |
3280 | , Float_t maxroadz) const | |
7ad19338 | 3281 | { |
3282 | // | |
3283 | // Returns index of the cluster nearest to the given y,z | |
3284 | // | |
75bd7f81 | 3285 | |
4551ea7c | 3286 | Int_t index = -1; |
3287 | Int_t maxn = fN; | |
69b55c55 | 3288 | Float_t mindist = maxroad; |
4551ea7c | 3289 | |
3290 | for (Int_t i = Find(y-maxroad); i < maxn; i++) { | |
3291 | AliTRDcluster *c = (AliTRDcluster *) (fClusters[i]); | |
69b55c55 | 3292 | Float_t ycl = c->GetY(); |
4551ea7c | 3293 | if (ycl > (y + maxroad)) { |
3294 | break; | |
3295 | } | |
3296 | if (TMath::Abs(c->GetZ() - z) > maxroadz) { | |
3297 | continue; | |
3298 | } | |
3299 | if (TMath::Abs(ycl - y) < mindist) { | |
3300 | mindist = TMath::Abs(ycl - y); | |
3301 | index = fIndex[i]; | |
3302 | } | |
6c94f330 | 3303 | } |
75bd7f81 | 3304 | |
7ad19338 | 3305 | return index; |
7ad19338 | 3306 | |
75bd7f81 | 3307 | } |
7ad19338 | 3308 | |
75bd7f81 | 3309 | //_____________________________________________________________________________ |
4551ea7c | 3310 | Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c) |
75bd7f81 | 3311 | { |
3312 | // | |
3313 | // Returns correction factor for tilted pads geometry | |
3314 | // | |
5443e65e | 3315 | |
4551ea7c | 3316 | Int_t det = c->GetDetector(); |
3317 | Int_t plane = fGeom->GetPlane(det); | |
3551db50 | 3318 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(plane,0); |
4551ea7c | 3319 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
b8dc2353 | 3320 | |
4551ea7c | 3321 | if (fNoTilt) { |
3322 | h01 = 0; | |
3323 | } | |
75bd7f81 | 3324 | |
fd621f36 | 3325 | return h01; |
5443e65e | 3326 | |
75bd7f81 | 3327 | } |
c630aafd | 3328 | |
75bd7f81 | 3329 | //_____________________________________________________________________________ |
4551ea7c | 3330 | void AliTRDtracker::CookdEdxTimBin(AliTRDtrack &TRDtrack) |
eab5961e | 3331 | { |
75bd7f81 | 3332 | // |
eab5961e | 3333 | // This is setting fdEdxPlane and fTimBinPlane |
3334 | // Sums up the charge in each plane for track TRDtrack and also get the | |
3335 | // Time bin for Max. Cluster | |
3336 | // Prashant Shukla (shukla@physi.uni-heidelberg.de) | |
75bd7f81 | 3337 | // |
eab5961e | 3338 | |
6d45eaef | 3339 | Double_t clscharge[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; |
3340 | Double_t maxclscharge[AliESDtrack::kNPlane]; | |
3341 | Int_t nCluster[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; | |
3342 | Int_t timebin[AliESDtrack::kNPlane]; | |
3343 | ||
4551ea7c | 3344 | // Initialization of cluster charge per plane. |
6d45eaef | 3345 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
3346 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { | |
3347 | clscharge[iPlane][iSlice] = 0.0; | |
4551ea7c | 3348 | nCluster[iPlane][iSlice] = 0; |
6d45eaef | 3349 | } |
3350 | } | |
eab5961e | 3351 | |
4551ea7c | 3352 | // Initialization of cluster charge per plane. |
f122c485 | 3353 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
4551ea7c | 3354 | timebin[iPlane] = -1; |
eab5961e | 3355 | maxclscharge[iPlane] = 0.0; |
3356 | } | |
3357 | ||
3358 | // Loop through all clusters associated to track TRDtrack | |
3359 | Int_t nClus = TRDtrack.GetNumberOfClusters(); // from Kalmantrack | |
3360 | for (Int_t iClus = 0; iClus < nClus; iClus++) { | |
3361 | Double_t charge = TRDtrack.GetClusterdQdl(iClus); | |
4551ea7c | 3362 | Int_t index = TRDtrack.GetClusterIndex(iClus); |
c6f438c0 | 3363 | AliTRDcluster *pTRDcluster = (AliTRDcluster *) GetCluster(index); |
4551ea7c | 3364 | if (!pTRDcluster) { |
3365 | continue; | |
3366 | } | |
3367 | Int_t tb = pTRDcluster->GetLocalTimeBin(); | |
3368 | if (!tb) { | |
3369 | continue; | |
3370 | } | |
3371 | Int_t detector = pTRDcluster->GetDetector(); | |
3372 | Int_t iPlane = fGeom->GetPlane(detector); | |
3373 | Int_t iSlice = tb * AliESDtrack::kNSlice / AliTRDtrack::kNtimeBins; | |
3374 | clscharge[iPlane][iSlice] = clscharge[iPlane][iSlice] + charge; | |
3375 | if (charge > maxclscharge[iPlane]) { | |
eab5961e | 3376 | maxclscharge[iPlane] = charge; |
4551ea7c | 3377 | timebin[iPlane] = tb; |
eab5961e | 3378 | } |
6d45eaef | 3379 | nCluster[iPlane][iSlice]++; |
4551ea7c | 3380 | } // End of loop over cluster |
eab5961e | 3381 | |
3382 | // Setting the fdEdxPlane and fTimBinPlane variabales | |
4551ea7c | 3383 | Double_t totalCharge = 0.0; |
6c94f330 | 3384 | |
f122c485 | 3385 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
6d45eaef | 3386 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { |
4551ea7c | 3387 | if (nCluster[iPlane][iSlice]) { |
3388 | clscharge[iPlane][iSlice] /= nCluster[iPlane][iSlice]; | |
3389 | } | |
3390 | TRDtrack.SetPIDsignals(clscharge[iPlane][iSlice],iPlane,iSlice); | |
3391 | totalCharge = totalCharge+clscharge[iPlane][iSlice]; | |
bd50219c | 3392 | } |
4551ea7c | 3393 | TRDtrack.SetPIDTimBin(timebin[iPlane],iPlane); |
eab5961e | 3394 | } |
6d45eaef | 3395 | |
4551ea7c | 3396 | // Still needed ???? |
eab5961e | 3397 | // Int_t i; |
3398 | // Int_t nc=TRDtrack.GetNumberOfClusters(); | |
3399 | // Float_t dedx=0; | |
3400 | // for (i=0; i<nc; i++) dedx += TRDtrack.GetClusterdQdl(i); | |
3401 | // dedx /= nc; | |
3402 | // for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) { | |
3403 | // TRDtrack.SetPIDsignals(dedx, iPlane); | |
3404 | // TRDtrack.SetPIDTimBin(timbin[iPlane], iPlane); | |
3405 | // } | |
3406 | ||
75bd7f81 | 3407 | } |
c630aafd | 3408 | |
75bd7f81 | 3409 | //_____________________________________________________________________________ |
3410 | Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1 | |
4551ea7c | 3411 | , AliTRDtrack *track |
3412 | , Int_t *clusters, AliTRDtracklet &tracklet) | |
4f1c04d3 | 3413 | { |
6c94f330 | 3414 | // |
4f1c04d3 | 3415 | // |
75bd7f81 | 3416 | // Try to find nearest clusters to the track in timebins from t0 to t1 |
4f1c04d3 | 3417 | // |
4551ea7c | 3418 | // Correction coeficients - depend on TRD parameters - to be changed accordingly |
3419 | // | |
3420 | ||
3421 | Double_t x[100]; | |
3422 | Double_t yt[100]; | |
3423 | Double_t zt[100]; | |
3424 | Double_t xmean = 0.0; // Reference x | |
3425 | Double_t dz[10][100]; | |
3426 | Double_t dy[10][100]; | |
3427 | Float_t zmean[100]; | |
3428 | Float_t nmean[100]; | |
3429 | Int_t clfound = 0; | |
3430 | Int_t indexes[10][100]; // Indexes of the clusters in the road | |
3431 | Int_t best[10][100]; // Index of best matching cluster | |
3432 | AliTRDcluster *cl[10][100]; // Pointers to the clusters in the road | |
3433 | ||
3434 | for (Int_t it = 0; it < 100; it++) { | |
3435 | x[it] = 0.0; | |
3436 | yt[it] = 0.0; | |
3437 | zt[it] = 0.0; | |
3438 | clusters[it] = -2; | |
3439 | zmean[it] = 0.0; | |
3440 | nmean[it] = 0.0; | |
3441 | for (Int_t ih = 0; ih < 10;ih++) { | |
3442 | indexes[ih][it] = -2; // Reset indexes1 | |
3443 | cl[ih][it] = 0; | |
3444 | dz[ih][it] = -100.0; | |
3445 | dy[ih][it] = -100.0; | |
3446 | best[ih][it] = 0; | |
3447 | } | |
3448 | } | |
ad670fba | 3449 | |
4551ea7c | 3450 | Double_t x0 = track->GetX(); |
3451 | Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2())); | |
3452 | Int_t nall = 0; | |
3453 | Int_t nfound = 0; | |
3454 | Double_t h01 = 0.0; | |
3455 | Int_t plane = -1; | |
3456 | Int_t detector = -1; | |
3457 | Float_t padlength = 0.0; | |
3458 | AliTRDtrack track2(* track); | |
3459 | Float_t snpy = track->GetSnp(); | |
3460 | Float_t tany = TMath::Sqrt(snpy*snpy / (1.0 - snpy*snpy)); | |
3461 | if (snpy < 0.0) { | |
3462 | tany *= -1.0; | |
3463 | } | |
ad670fba | 3464 | |
4551ea7c | 3465 | Double_t sy2 = ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt()); |
3466 | Double_t sz2 = ExpectedSigmaZ2(x0,track->GetTgl()); | |
3467 | Double_t road = 15.0 * TMath::Sqrt(track->GetSigmaY2() + sy2); | |
3468 | if (road > 6.0) { | |
3469 | road = 6.0; | |
3470 | } | |
3471 | ||
3472 | for (Int_t it = 0; it < t1-t0; it++) { | |
3473 | ||
3474 | Double_t maxChi2[2] = { fgkMaxChi2, fgkMaxChi2 }; | |
3475 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(it+t0)); | |
3476 | if (timeBin == 0) { | |
3477 | continue; // No indexes1 | |
6c94f330 | 3478 | } |
4551ea7c | 3479 | |
3480 | Int_t maxn = timeBin; | |
3481 | x[it] = timeBin.GetX(); | |
7ad19338 | 3482 | track2.PropagateTo(x[it]); |
6c94f330 | 3483 | yt[it] = track2.GetY(); |
3484 | zt[it] = track2.GetZ(); | |
7ad19338 | 3485 | |
4551ea7c | 3486 | Double_t y = yt[it]; |
3487 | Double_t z = zt[it]; | |
3488 | Double_t chi2 = 1000000.0; | |
4f1c04d3 | 3489 | nall++; |
4551ea7c | 3490 | |
4f1c04d3 | 3491 | // |
4551ea7c | 3492 | // Find 2 nearest cluster at given time bin |
6c94f330 | 3493 | // |
4551ea7c | 3494 | for (Int_t i = timeBin.Find(y - road); i < maxn; i++) { |
3495 | ||
3496 | AliTRDcluster *c = (AliTRDcluster *) (timeBin[i]); | |
7ad19338 | 3497 | h01 = GetTiltFactor(c); |
4551ea7c | 3498 | if (plane < 0) { |
c6f438c0 | 3499 | Int_t det = c->GetDetector(); |
4551ea7c | 3500 | plane = fGeom->GetPlane(det); |
3501 | padlength = TMath::Sqrt(c->GetSigmaZ2() * 12.0); | |
3502 | } | |
3503 | //if (c->GetLocalTimeBin()==0) continue; | |
3504 | if (c->GetY() > (y + road)) { | |
3505 | break; | |
3506 | } | |
3507 | if ((c->GetZ() - z) * (c->GetZ() - z) > (12.0 * sz2)) { | |
3508 | continue; | |
7ad19338 | 3509 | } |
7ad19338 | 3510 | |
4551ea7c | 3511 | Double_t dist = TMath::Abs(c->GetZ() - z); |
3512 | if (dist > (0.5 * padlength + 6.0 * sigmaz)) { | |
3513 | continue; // 6 sigma boundary cut | |
3514 | } | |
3515 | Double_t cost = 0.0; | |
3516 | // Sigma boundary cost function | |
3517 | if (dist> (0.5 * padlength - sigmaz)){ | |
3518 | cost = (dist - 0.5*padlength) / (2.0 * sigmaz); | |
3519 | if (cost > -1) { | |
3520 | cost = (cost + 1.0) * (cost + 1.0); | |
3521 | } | |
3522 | else { | |
3523 | cost = 0.0; | |
3524 | } | |
3525 | } | |
3526 | //Int_t label = TMath::Abs(track->GetLabel()); | |
3527 | //if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue; | |
3528 | chi2 = track2.GetPredictedChi2(c,h01) + cost; | |
7ad19338 | 3529 | clfound++; |
6c94f330 | 3530 | |
4551ea7c | 3531 | if (chi2 > maxChi2[1]) { |
3532 | continue; | |
3533 | } | |
3534 | detector = c->GetDetector(); | |
3535 | // Store the clusters in the road | |
3536 | for (Int_t ih = 2; ih < 9; ih++) { | |
3537 | if (cl[ih][it] == 0) { | |
3538 | cl[ih][it] = c; | |
3539 | indexes[ih][it] = timeBin.GetIndex(i); // Index - 9 - reserved for outliers | |
7ad19338 | 3540 | break; |
3541 | } | |
4f1c04d3 | 3542 | } |
4551ea7c | 3543 | |
3544 | if (chi2 < maxChi2[0]) { | |
7ad19338 | 3545 | maxChi2[1] = maxChi2[0]; |
3546 | maxChi2[0] = chi2; | |
3547 | indexes[1][it] = indexes[0][it]; | |
3548 | cl[1][it] = cl[0][it]; | |
3549 | indexes[0][it] = timeBin.GetIndex(i); | |
3550 | cl[0][it] = c; | |
3551 | continue; | |
3552 | } | |
4551ea7c | 3553 | maxChi2[1] = chi2; |
3554 | cl[1][it] = c; | |
3555 | indexes[1][it] = timeBin.GetIndex(i); | |
3556 | ||
3557 | } | |
3558 | ||
3559 | if (cl[0][it]) { | |
7ad19338 | 3560 | nfound++; |
3561 | xmean += x[it]; | |
3562 | } | |
4551ea7c | 3563 | |
4f1c04d3 | 3564 | } |
4551ea7c | 3565 | |
3566 | if (nfound < 4) { | |
3567 | return 0; | |
3568 | } | |
3569 | xmean /= Float_t(nfound); // Middle x | |
3570 | track2.PropagateTo(xmean); // Propagate track to the center | |
3571 | ||
4f1c04d3 | 3572 | // |
4551ea7c | 3573 | // Choose one of the variants |
7ad19338 | 3574 | // |
4551ea7c | 3575 | Int_t changes[10]; |
3576 | Float_t sumz = 0.0; | |
3577 | Float_t sum = 0.0; | |
3578 | Double_t sumdy = 0.0; | |
3579 | Double_t sumdy2 = 0.0; | |
3580 | Double_t sumx = 0.0; | |
3581 | Double_t sumxy = 0.0; | |
3582 | Double_t sumx2 = 0.0; | |
3583 | Double_t mpads = 0.0; | |
3584 | ||
3585 | Int_t ngood[10]; | |
3586 | Int_t nbad[10]; | |
3587 | ||
7ad19338 | 3588 | Double_t meanz[10]; |
4551ea7c | 3589 | Double_t moffset[10]; // Mean offset |
3590 | Double_t mean[10]; // Mean value | |
3591 | Double_t angle[10]; // Angle | |
3592 | ||
3593 | Double_t smoffset[10]; // Sigma of mean offset | |
3594 | Double_t smean[10]; // Sigma of mean value | |
3595 | Double_t sangle[10]; // Sigma of angle | |
3596 | Double_t smeanangle[10]; // Correlation | |
3597 | ||
7ad19338 | 3598 | Double_t sigmas[10]; |
4551ea7c | 3599 | Double_t tchi2s[10]; // Chi2s for tracklet |
ad670fba | 3600 | |
4551ea7c | 3601 | for (Int_t it = 0; it < 10; it++) { |
ad670fba | 3602 | |
4551ea7c | 3603 | ngood[it] = 0; |
3604 | nbad[it] = 0; | |
3605 | ||
3606 | meanz[it] = 0.0; | |
3607 | moffset[it] = 0.0; // Mean offset | |
3608 | mean[it] = 0.0; // Mean value | |
3609 | angle[it] = 0.0; // Angle | |
3610 | ||
3611 | smoffset[it] = 1.0e10; // Sigma of mean offset | |
3612 | smean[it] = 1.0e10; // Sigma of mean value | |
3613 | sangle[it] = 1.0e10; // Sigma of angle | |
3614 | smeanangle[it] = 0.0; // Correlation | |
3615 | ||
3616 | sigmas[it] = 1.0e10; | |
3617 | tchi2s[it] = 1.0e10; // Chi2s for tracklet | |
75bd7f81 | 3618 | |
3619 | } | |
3620 | ||
7ad19338 | 3621 | // |
4551ea7c | 3622 | // Calculate zmean |
7ad19338 | 3623 | // |
4551ea7c | 3624 | for (Int_t it = 0; it < t1 - t0; it++) { |
3625 | if (!cl[0][it]) { | |
3626 | continue; | |
3627 | } | |
3628 | for (Int_t dt = -3; dt <= 3; dt++) { | |
3629 | if (it+dt < 0) { | |
3630 | continue; | |
3631 | } | |
3632 | if (it+dt > t1-t0) { | |
3633 | continue; | |
3634 | } | |
3635 | if (!cl[0][it+dt]) { | |
3636 | continue; | |
3637 | } | |
3638 | zmean[it] += cl[0][it+dt]->GetZ(); | |
3639 | nmean[it] += 1.0; | |
7ad19338 | 3640 | } |
4551ea7c | 3641 | zmean[it] /= nmean[it]; |
7ad19338 | 3642 | } |
4551ea7c | 3643 | |
3644 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3645 | ||
3646 | best[0][it] = 0; | |
3647 | ||
3648 | for (Int_t ih = 0; ih < 10; ih++) { | |
3649 | dz[ih][it] = -100.0; | |
3650 | dy[ih][it] = -100.0; | |
3651 | if (!cl[ih][it]) { | |
3652 | continue; | |
3653 | } | |
3654 | Double_t xcluster = cl[ih][it]->GetX(); | |
3655 | Double_t ytrack; | |
3656 | Double_t ztrack; | |
3657 | track2.GetProlongation(xcluster,ytrack,ztrack ); | |
3658 | dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // Calculate distance from track in z | |
3659 | dy[ih][it] = cl[ih][it]->GetY() + dz[ih][it]*h01 - ytrack; // and in y | |
7ad19338 | 3660 | } |
4551ea7c | 3661 | |
3662 | // Minimize changes | |
3663 | if (!cl[0][it]) { | |
3664 | continue; | |
3665 | } | |
3666 | if ((TMath::Abs(cl[0][it]->GetZ()-zmean[it]) > padlength * 0.8) && | |
3667 | (cl[1][it])) { | |
3668 | if (TMath::Abs(cl[1][it]->GetZ()-zmean[it]) < padlength * 0.5) { | |
3669 | best[0][it] = 1; | |
4f1c04d3 | 3670 | } |
4551ea7c | 3671 | } |
3672 | ||
7ad19338 | 3673 | } |
4551ea7c | 3674 | |
7ad19338 | 3675 | // |
4551ea7c | 3676 | // Iterative choice of "best path" |
6c94f330 | 3677 | // |
4551ea7c | 3678 | Int_t label = TMath::Abs(track->GetLabel()); |
3679 | Int_t bestiter = 0; | |
3680 | ||
3681 | for (Int_t iter = 0; iter < 9; iter++) { | |
3682 | ||
3683 | changes[iter] = 0; | |
3684 | sumz = 0; | |
3685 | sum = 0; | |
3686 | sumdy = 0; | |
3687 | sumdy2 = 0; | |
3688 | sumx = 0; | |
3689 | sumx2 = 0; | |
3690 | sumxy = 0; | |
3691 | mpads = 0; | |
3692 | ngood[iter] = 0; | |
3693 | nbad[iter] = 0; | |
3694 | ||
3695 | // Linear fit | |
3696 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3697 | ||
3698 | if (!cl[best[iter][it]][it]) { | |
3699 | continue; | |
3700 | } | |
3701 | ||
3702 | // Calculates pad-row changes | |
3703 | Double_t zbefore = cl[best[iter][it]][it]->GetZ(); | |
3704 | Double_t zafter = cl[best[iter][it]][it]->GetZ(); | |
3705 | for (Int_t itd = it - 1; itd >= 0; itd--) { | |
7ad19338 | 3706 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3707 | zbefore = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3708 | break; |
3709 | } | |
3710 | } | |
4551ea7c | 3711 | for (Int_t itd = it + 1; itd < t1 - t0; itd++) { |
7ad19338 | 3712 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3713 | zafter = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3714 | break; |
3715 | } | |
3716 | } | |
4551ea7c | 3717 | if ((TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore) > 0.1) && |
3718 | (TMath::Abs(cl[best[iter][it]][it]->GetZ()- zafter) > 0.1)) { | |
3719 | changes[iter]++; | |
3720 | } | |
3721 | ||
3722 | Double_t dx = x[it]-xmean; // Distance to reference x | |
3723 | sumz += cl[best[iter][it]][it]->GetZ(); | |
4f1c04d3 | 3724 | sum++; |
4551ea7c | 3725 | sumdy += dy[best[iter][it]][it]; |
3726 | sumdy2 += dy[best[iter][it]][it]*dy[best[iter][it]][it]; | |
3727 | sumx += dx; | |
3728 | sumx2 += dx*dx; | |
7ad19338 | 3729 | sumxy += dx*dy[best[iter][it]][it]; |
4551ea7c | 3730 | mpads += cl[best[iter][it]][it]->GetNPads(); |
3731 | if ((cl[best[iter][it]][it]->GetLabel(0) == label) || | |
3732 | (cl[best[iter][it]][it]->GetLabel(1) == label) || | |
3733 | (cl[best[iter][it]][it]->GetLabel(2) == label)) { | |
7ad19338 | 3734 | ngood[iter]++; |
4f1c04d3 | 3735 | } |
4551ea7c | 3736 | else { |
7ad19338 | 3737 | nbad[iter]++; |
4f1c04d3 | 3738 | } |
4551ea7c | 3739 | |
4f1c04d3 | 3740 | } |
4551ea7c | 3741 | |
7ad19338 | 3742 | // |
6c94f330 | 3743 | // calculates line parameters |
7ad19338 | 3744 | // |
4551ea7c | 3745 | Double_t det = sum*sumx2 - sumx*sumx; |
3746 | angle[iter] = (sum*sumxy - sumx*sumdy) / det; | |
3747 | mean[iter] = (sumx2*sumdy - sumx*sumxy) / det; | |
3748 | meanz[iter] = sumz / sum; | |
3749 | moffset[iter] = sumdy / sum; | |
3750 | mpads /= sum; // Mean number of pads | |
3751 | ||
3752 | Double_t sigma2 = 0.0; // Normalized residuals - for line fit | |
3753 | Double_t sigma1 = 0.0; // Normalized residuals - constant fit | |
3754 | ||
3755 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3756 | if (!cl[best[iter][it]][it]) { | |
3757 | continue; | |
3758 | } | |
3759 | Double_t dx = x[it] - xmean; | |
3760 | Double_t ytr = mean[iter] + angle[iter] * dx; | |
3761 | sigma2 += (dy[best[iter][it]][it] - ytr) | |
3762 | * (dy[best[iter][it]][it] - ytr); | |
3763 | sigma1 += (dy[best[iter][it]][it] - moffset[iter]) | |
3764 | * (dy[best[iter][it]][it] - moffset[iter]); | |
7ad19338 | 3765 | sum++; |
4f1c04d3 | 3766 | } |
4551ea7c | 3767 | sigma2 /= (sum - 2); // Normalized residuals |
3768 | sigma1 /= (sum - 1); // Normalized residuals | |
3769 | smean[iter] = sigma2 * (sumx2 / det); // Estimated error2 of mean | |
3770 | sangle[iter] = sigma2 * ( sum / det); // Estimated error2 of angle | |
3771 | smeanangle[iter] = sigma2 * (-sumx / det); // Correlation | |
3772 | sigmas[iter] = TMath::Sqrt(sigma1); | |
3773 | smoffset[iter] = (sigma1 / sum) + 0.01*0.01; // Sigma of mean offset + unisochronity sigma | |
3774 | ||
6c94f330 | 3775 | // |
4551ea7c | 3776 | // Iterative choice of "better path" |
6c94f330 | 3777 | // |
4551ea7c | 3778 | for (Int_t it = 0; it < t1 - t0; it++) { |
3779 | ||
3780 | if (!cl[best[iter][it]][it]) { | |
3781 | continue; | |
3782 | } | |
3783 | ||
3784 | // Add unisochronity + angular effect contribution | |
3785 | Double_t sigmatr2 = smoffset[iter] + 0.5*tany*tany; | |
3786 | Double_t sweight = 1.0/sigmatr2 + 1.0/track->GetSigmaY2(); | |
3787 | Double_t weighty = (moffset[iter] / sigmatr2) / sweight; // Weighted mean | |
3788 | Double_t sigmacl = TMath::Sqrt(sigma1*sigma1 + track->GetSigmaY2()); | |
3789 | Double_t mindist = 100000.0; | |
3790 | Int_t ihbest = 0; | |
3791 | ||
3792 | for (Int_t ih = 0; ih < 10; ih++) { | |
3793 | if (!cl[ih][it]) { | |
3794 | break; | |
3795 | } | |
3796 | Double_t dist2 = (dy[ih][it] - weighty) / sigmacl; | |
3797 | dist2 *= dist2; // Chi2 distance | |
3798 | if (dist2 < mindist) { | |
7ad19338 | 3799 | mindist = dist2; |
4551ea7c | 3800 | ihbest = ih; |
7ad19338 | 3801 | } |
3802 | } | |
4551ea7c | 3803 | best[iter+1][it] = ihbest; |
4f1c04d3 | 3804 | } |
4551ea7c | 3805 | |
4f1c04d3 | 3806 | // |
4551ea7c | 3807 | // Update best hypothesy if better chi2 according tracklet position and angle |
7ad19338 | 3808 | // |
69b55c55 | 3809 | Double_t sy2 = smean[iter] + track->GetSigmaY2(); |
4551ea7c | 3810 | Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee; |
3811 | Double_t say = track->GetSigmaSnpY(); // track->fCey; | |
3812 | //Double_t chi20 = mean[bestiter]*mean[bestiter ] / sy2+angle[bestiter]*angle[bestiter]/sa2; | |
3813 | //Double_t chi21 = mean[iter]*mean[iter] / sy2+angle[iter]*angle[iter]/sa2; | |
6c94f330 | 3814 | |
4551ea7c | 3815 | Double_t detchi = sy2*sa2 - say*say; |
3816 | Double_t invers[3] = {sa2/detchi,sy2/detchi,-say/detchi}; // Inverse value of covariance matrix | |
4f1c04d3 | 3817 | |
4551ea7c | 3818 | Double_t chi20 = mean[bestiter] * mean[bestiter] * invers[0] |
3819 | + angle[bestiter] * angle[bestiter] * invers[1] | |
3820 | + 2.0 * mean[bestiter] * angle[bestiter] * invers[2]; | |
3821 | Double_t chi21 = mean[iter] * mean[iter] * invers[0] | |
3822 | + angle[iter] * angle[iter] * invers[1] | |
3823 | + 2.0 * mean[iter] * angle[iter] * invers[2]; | |
3824 | tchi2s[iter] = chi21; | |
3825 | ||
3826 | if ((changes[iter] <= changes[bestiter]) && | |
3827 | (chi21 < chi20)) { | |
3828 | bestiter = iter; | |
7ad19338 | 3829 | } |
4551ea7c | 3830 | |
7ad19338 | 3831 | } |
4551ea7c | 3832 | |
7ad19338 | 3833 | // |
4551ea7c | 3834 | // Set clusters |
7ad19338 | 3835 | // |
4551ea7c | 3836 | Double_t sigma2 = sigmas[0]; // Choose as sigma from 0 iteration |
3837 | Short_t maxpos = -1; | |
3838 | Float_t maxcharge = 0.0; | |
3839 | Short_t maxpos4 = -1; | |
3840 | Float_t maxcharge4 = 0.0; | |
3841 | Short_t maxpos5 = -1; | |
3842 | Float_t maxcharge5 = 0.0; | |
8979685e | 3843 | |
7ad19338 | 3844 | //if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.; |
3845 | //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept | |
3846 | ||
4551ea7c | 3847 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau( |
3848 | AliTRDcalibDB::Instance()->GetVdrift(0,0,0)); | |
3849 | Double_t expectederr = sigma2*sigma2 + 0.01*0.01; | |
3850 | if (mpads > 3.5) { | |
3851 | expectederr += (mpads - 3.5) * 0.04; | |
3852 | } | |
3853 | if (changes[bestiter] > 1) { | |
3854 | expectederr += changes[bestiter] * 0.01; | |
3855 | } | |
3856 | expectederr += (0.03 * (tany-exB)*(tany-exB)) * 15.0; | |
3857 | //if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.; | |
7ad19338 | 3858 | //expectederr+=10000; |
4551ea7c | 3859 | |
3860 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3861 | ||
3862 | if (!cl[best[bestiter][it]][it]) { | |
3863 | continue; | |
69b55c55 | 3864 | } |
4551ea7c | 3865 | |
3866 | cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // Set cluster error | |
3867 | if (!cl[best[bestiter][it]][it]->IsUsed()) { | |
3868 | cl[best[bestiter][it]][it]->SetY(cl[best[bestiter][it]][it]->GetY()); | |
3869 | //cl[best[bestiter][it]][it]->Use(); | |
3870 | } | |
3871 | ||
3872 | // Time bins with maximal charge | |
3873 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
69b55c55 | 3874 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 3875 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 3876 | } |
6c94f330 | 3877 | |
4551ea7c | 3878 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
3879 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
69b55c55 | 3880 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 3881 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 3882 | } |
3883 | } | |
4551ea7c | 3884 | |
3885 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
3886 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
69b55c55 | 3887 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 3888 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 3889 | } |
7ad19338 | 3890 | } |
4551ea7c | 3891 | |
3892 | // Time bins with maximal charge | |
3893 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
8979685e | 3894 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 3895 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 3896 | } |
6c94f330 | 3897 | |
4551ea7c | 3898 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
3899 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
8979685e | 3900 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 3901 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 3902 | } |
3903 | } | |
4551ea7c | 3904 | |
3905 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
3906 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
8979685e | 3907 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 3908 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 3909 | } |
3910 | } | |
4551ea7c | 3911 | |
7ad19338 | 3912 | clusters[it+t0] = indexes[best[bestiter][it]][it]; |
4551ea7c | 3913 | |
3914 | // Still needed ???? | |
3915 | //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 && | |
3916 | //cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0] | |
3917 | // = indexes[best[bestiter][it]][it]; //Test | |
3918 | ||
7ad19338 | 3919 | } |
4551ea7c | 3920 | |
7ad19338 | 3921 | // |
4551ea7c | 3922 | // Set tracklet parameters |
6c94f330 | 3923 | // |
4551ea7c | 3924 | Double_t trackleterr2 = smoffset[bestiter] + 0.01*0.01; |
3925 | if (mpads > 3.5) { | |
3926 | trackleterr2 += (mpads - 3.5) * 0.04; | |
3927 | } | |
3928 | trackleterr2 += changes[bestiter] * 0.01; | |
3929 | trackleterr2 *= TMath::Max(14.0 - nfound,1.0); | |
3930 | trackleterr2 += 0.2 * (tany-exB)*(tany-exB); | |
3931 | ||
3932 | // Set tracklet parameters | |
3933 | tracklet.Set(xmean | |
3934 | ,track2.GetY() + moffset[bestiter] | |
3935 | ,meanz[bestiter] | |
3936 | ,track2.GetAlpha() | |
3937 | ,trackleterr2); | |
7ad19338 | 3938 | tracklet.SetTilt(h01); |
3939 | tracklet.SetP0(mean[bestiter]); | |
3940 | tracklet.SetP1(angle[bestiter]); | |
3941 | tracklet.SetN(nfound); | |
3942 | tracklet.SetNCross(changes[bestiter]); | |
3943 | tracklet.SetPlane(plane); | |
3944 | tracklet.SetSigma2(expectederr); | |
3945 | tracklet.SetChi2(tchi2s[bestiter]); | |
8979685e | 3946 | tracklet.SetMaxPos(maxpos,maxpos4,maxpos5); |
27eaf44b | 3947 | track->SetTracklets(plane,tracklet); |
3948 | track->SetNWrong(track->GetNWrong() + nbad[0]); | |
4551ea7c | 3949 | |
7ad19338 | 3950 | // |
3951 | // Debuging part | |
3952 | // | |
69b55c55 | 3953 | TClonesArray array0("AliTRDcluster"); |
3954 | TClonesArray array1("AliTRDcluster"); | |
4551ea7c | 3955 | array0.ExpandCreateFast(t1 - t0 + 1); |
3956 | array1.ExpandCreateFast(t1 - t0 + 1); | |
3957 | TTreeSRedirector &cstream = *fDebugStreamer; | |
7ad19338 | 3958 | AliTRDcluster dummy; |
3959 | Double_t dy0[100]; | |
8979685e | 3960 | Double_t dyb[100]; |
3961 | ||
4551ea7c | 3962 | for (Int_t it = 0; it < t1 - t0; it++) { |
7ad19338 | 3963 | dy0[it] = dy[0][it]; |
3964 | dyb[it] = dy[best[bestiter][it]][it]; | |
4551ea7c | 3965 | if (cl[0][it]) { |
7ad19338 | 3966 | new(array0[it]) AliTRDcluster(*cl[0][it]); |
3967 | } | |
4551ea7c | 3968 | else { |
7ad19338 | 3969 | new(array0[it]) AliTRDcluster(dummy); |
3970 | } | |
3971 | if(cl[best[bestiter][it]][it]) { | |
3972 | new(array1[it]) AliTRDcluster(*cl[best[bestiter][it]][it]); | |
3973 | } | |
3974 | else{ | |
3975 | new(array1[it]) AliTRDcluster(dummy); | |
3976 | } | |
4f1c04d3 | 3977 | } |
7ad19338 | 3978 | TGraph graph0(t1-t0,x,dy0); |
3979 | TGraph graph1(t1-t0,x,dyb); | |
3980 | TGraph graphy(t1-t0,x,yt); | |
3981 | TGraph graphz(t1-t0,x,zt); | |
4551ea7c | 3982 | |
3983 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
3984 | cstream << "tracklet" | |
3985 | << "track.=" << track // Track parameters | |
3986 | << "tany=" << tany // Tangent of the local track angle | |
3987 | << "xmean=" << xmean // Xmean - reference x of tracklet | |
3988 | << "tilt=" << h01 // Tilt angle | |
3989 | << "nall=" << nall // Number of foundable clusters | |
3990 | << "nfound=" << nfound // Number of found clusters | |
3991 | << "clfound=" << clfound // Total number of found clusters in road | |
3992 | << "mpads=" << mpads // Mean number of pads per cluster | |
3993 | << "plane=" << plane // Plane number | |
3994 | << "detector=" << detector // Detector number | |
3995 | << "road=" << road // The width of the used road | |
3996 | << "graph0.=" << &graph0 // x - y = dy for closest cluster | |
3997 | << "graph1.=" << &graph1 // x - y = dy for second closest cluster | |
3998 | << "graphy.=" << &graphy // y position of the track | |
3999 | << "graphz.=" << &graphz // z position of the track | |
4000 | //<< "fCl.=" << &array0 // closest cluster | |
4001 | //<< "fCl2.=" << &array1 // second closest cluster | |
4002 | << "maxpos=" << maxpos // Maximal charge postion | |
4003 | << "maxcharge=" << maxcharge // Maximal charge | |
4004 | << "maxpos4=" << maxpos4 // Maximal charge postion - after bin 4 | |
4005 | << "maxcharge4=" << maxcharge4 // Maximal charge - after bin 4 | |
4006 | << "maxpos5=" << maxpos5 // Maximal charge postion - after bin 5 | |
4007 | << "maxcharge5=" << maxcharge5 // Maximal charge - after bin 5 | |
4008 | << "bestiter=" << bestiter // Best iteration number | |
4009 | << "tracklet.=" << &tracklet // Corrspond to the best iteration | |
4010 | << "tchi20=" << tchi2s[0] // Chi2 of cluster in the 0 iteration | |
4011 | << "tchi2b=" << tchi2s[bestiter] // Chi2 of cluster in the best iteration | |
4012 | << "sigmas0=" << sigmas[0] // Residuals sigma | |
4013 | << "sigmasb=" << sigmas[bestiter] // Residulas sigma | |
4014 | << "ngood0=" << ngood[0] // Number of good clusters in 0 iteration | |
4015 | << "nbad0=" << nbad[0] // Number of bad clusters in 0 iteration | |
4016 | << "ngoodb=" << ngood[bestiter] // in best iteration | |
4017 | << "nbadb=" << nbad[bestiter] // in best iteration | |
4018 | << "changes0=" << changes[0] // Changes of pardrows in iteration number 0 | |
4019 | << "changesb=" << changes[bestiter] // Changes of pardrows in best iteration | |
4020 | << "moffset0=" << moffset[0] // Offset fixing angle in iter=0 | |
4021 | << "smoffset0=" << smoffset[0] // Sigma of offset fixing angle in iter=0 | |
4022 | << "moffsetb=" << moffset[bestiter] // Offset fixing angle in iter=best | |
4023 | << "smoffsetb=" << smoffset[bestiter] // Sigma of offset fixing angle in iter=best | |
4024 | << "mean0=" << mean[0] // Mean dy in iter=0; | |
4025 | << "smean0=" << smean[0] // Sigma of mean dy in iter=0 | |
4026 | << "meanb=" << mean[bestiter] // Mean dy in iter=best | |
4027 | << "smeanb=" << smean[bestiter] // Sigma of mean dy in iter=best | |
4028 | << "angle0=" << angle[0] // Angle deviation in the iteration number 0 | |
4029 | << "sangle0=" << sangle[0] // Sigma of angular deviation in iteration number 0 | |
4030 | << "angleb=" << angle[bestiter] // Angle deviation in the best iteration | |
4031 | << "sangleb=" << sangle[bestiter] // Sigma of angle deviation in the best iteration | |
4032 | << "expectederr=" << expectederr // Expected error of cluster position | |
4033 | << "\n"; | |
4034 | } | |
4035 | ||
4f1c04d3 | 4036 | return nfound; |
4f1c04d3 | 4037 | |
75bd7f81 | 4038 | } |
4f1c04d3 | 4039 | |
75bd7f81 | 4040 | //_____________________________________________________________________________ |
4041 | Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist | |
4042 | , Int_t *outlist, Bool_t down) | |
69b55c55 | 4043 | { |
4044 | // | |
4551ea7c | 4045 | // Sort eleements according occurancy |
4046 | // The size of output array has is 2*n | |
69b55c55 | 4047 | // |
75bd7f81 | 4048 | |
4551ea7c | 4049 | Int_t *sindexS = new Int_t[n]; // Temporary array for sorting |
4050 | Int_t *sindexF = new Int_t[2*n]; | |
4051 | for (Int_t i = 0; i < n; i++) { | |
4052 | sindexF[i] = 0; | |
4053 | } | |
4054 | ||
4055 | TMath::Sort(n,inlist,sindexS,down); | |
4056 | ||
4057 | Int_t last = inlist[sindexS[0]]; | |
4058 | Int_t val = last; | |
4059 | sindexF[0] = 1; | |
4060 | sindexF[0+n] = last; | |
4061 | Int_t countPos = 0; | |
4062 | ||
4063 | // Find frequency | |
4064 | for (Int_t i = 1; i < n; i++) { | |
69b55c55 | 4065 | val = inlist[sindexS[i]]; |
4551ea7c | 4066 | if (last == val) { |
4067 | sindexF[countPos]++; | |
4068 | } | |
4069 | else { | |
69b55c55 | 4070 | countPos++; |
4071 | sindexF[countPos+n] = val; | |
4072 | sindexF[countPos]++; | |
4551ea7c | 4073 | last = val; |
69b55c55 | 4074 | } |
4075 | } | |
4551ea7c | 4076 | if (last == val) { |
4077 | countPos++; | |
4078 | } | |
4079 | ||
4080 | // Sort according frequency | |
4081 | TMath::Sort(countPos,sindexF,sindexS,kTRUE); | |
4082 | ||
4083 | for (Int_t i = 0; i < countPos; i++) { | |
69b55c55 | 4084 | outlist[2*i ] = sindexF[sindexS[i]+n]; |
4085 | outlist[2*i+1] = sindexF[sindexS[i]]; | |
4086 | } | |
4551ea7c | 4087 | |
69b55c55 | 4088 | delete [] sindexS; |
4089 | delete [] sindexF; | |
4090 | ||
4091 | return countPos; | |
75bd7f81 | 4092 | |
69b55c55 | 4093 | } |
4094 | ||
75bd7f81 | 4095 | //_____________________________________________________________________________ |
4551ea7c | 4096 | AliTRDtrack *AliTRDtracker::RegisterSeed(AliTRDseed *seeds, Double_t *params) |
69b55c55 | 4097 | { |
4098 | // | |
75bd7f81 | 4099 | // Register a seed |
69b55c55 | 4100 | // |
4551ea7c | 4101 | |
4102 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4103 | Double_t shift = AliTRDgeometry::GetAlpha()/2.0; | |
69b55c55 | 4104 | Double_t c[15]; |
4551ea7c | 4105 | |
4106 | c[ 0] = 0.2; | |
4107 | c[ 1] = 0.0; c[ 2] = 2.0; | |
4108 | c[ 3] = 0.0; c[ 4] = 0.0; c[ 5] = 0.02; | |
4109 | c[ 6] = 0.0; c[ 7] = 0.0; c[ 8] = 0.0; c[ 9] = 0.1; | |
4110 | c[10] = 0.0; c[11] = 0.0; c[12] = 0.0; c[13] = 0.0; c[14] = params[5]*params[5]*0.01; | |
4111 | ||
4112 | Int_t index = 0; | |
4113 | AliTRDcluster *cl = 0; | |
4114 | ||
4115 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { | |
4116 | if (seeds[ilayer].IsOK()) { | |
4117 | for (Int_t itime = 22; itime > 0; itime--) { | |
ca1e1e5b | 4118 | if (seeds[ilayer].GetIndexes(itime) > 0) { |
4119 | index = seeds[ilayer].GetIndexes(itime); | |
4120 | cl = seeds[ilayer].GetClusters(itime); | |
69b55c55 | 4121 | break; |
4122 | } | |
4123 | } | |
4124 | } | |
4551ea7c | 4125 | if (index > 0) { |
4126 | break; | |
4127 | } | |
69b55c55 | 4128 | } |
4551ea7c | 4129 | if (cl == 0) { |
4130 | return 0; | |
4131 | } | |
4132 | ||
4133 | AliTRDtrack *track = new AliTRDtrack(cl | |
4134 | ,index | |
4135 | ,¶ms[1] | |
4136 | ,c | |
4137 | ,params[0] | |
4138 | ,params[6]*alpha+shift); | |
4139 | track->PropagateTo(params[0]-5.0); | |
69b55c55 | 4140 | track->ResetCovariance(1); |
4551ea7c | 4141 | |
4142 | Int_t rc = FollowBackProlongation(*track); | |
4143 | if (rc < 30) { | |
69b55c55 | 4144 | delete track; |
4551ea7c | 4145 | track = 0; |
4146 | } | |
4147 | else { | |
69b55c55 | 4148 | track->CookdEdx(); |
4149 | CookdEdxTimBin(*track); | |
4551ea7c | 4150 | CookLabel(track,0.9); |
69b55c55 | 4151 | } |
69b55c55 | 4152 | |
75bd7f81 | 4153 | return track; |
69b55c55 | 4154 | |
69b55c55 | 4155 | } |