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