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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 | |
af885e0f | 42 | #include "AliESDEvent.h" |
4551ea7c | 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" |
082a2283 | 57 | #include "AliTRDCalibraFillHisto.h" |
58 | ||
7e448bcc | 59 | ClassImp(AliTRDtracker) |
46d29e70 | 60 | |
b08a2e7e | 61 | const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; // |
62 | const Float_t AliTRDtracker::fgkLabelFraction = 0.8; // | |
63 | const Double_t AliTRDtracker::fgkMaxChi2 = 12.0; // | |
7e448bcc | 64 | const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // Corresponds to tan = 3 |
65 | const Double_t AliTRDtracker::fgkMaxStep = 2.0; // Maximal step size in propagation | |
7ad19338 | 66 | |
75bd7f81 | 67 | //_____________________________________________________________________________ |
4551ea7c | 68 | AliTRDtracker::AliTRDtracker() |
4e009ce4 | 69 | :AliTracker() |
70 | ,fHBackfit(0x0) | |
71 | ,fHClSearch(0x0) | |
72 | ,fHRefit(0x0) | |
73 | ,fHX(0x0) | |
74 | ,fHNCl(0x0) | |
75 | ,fHNClTrack(0x0) | |
76 | ,fHMinYPos(0x0) | |
77 | ,fHMinYNeg(0x0) | |
78 | ,fHMinZ(0x0) | |
79 | ,fHMinD(0x0) | |
80 | ,fHDeltaX(0x0) | |
81 | ,fHXCl(0x0) | |
82 | ,fGeom(0) | |
83 | ,fNclusters(0) | |
84 | ,fClusters(0) | |
85 | ,fNseeds(0) | |
86 | ,fSeeds(0) | |
87 | ,fNtracks(0) | |
88 | ,fTracks(0) | |
89 | ,fTimeBinsPerPlane(0) | |
90 | ,fAddTRDseeds(kFALSE) | |
91 | ,fNoTilt(kFALSE) | |
92 | ,fDebugStreamer(0) | |
89f05372 | 93 | { |
75bd7f81 | 94 | // |
b7a0917f | 95 | // Default constructor |
75bd7f81 | 96 | // |
b7a0917f | 97 | |
4551ea7c | 98 | for (Int_t i = 0; i < kTrackingSectors; i++) { |
99 | fTrSec[i] = 0; | |
100 | } | |
101 | for (Int_t j = 0; j < 5; j++) { | |
102 | for (Int_t k = 0; k < 18; k++) { | |
103 | fHoles[j][k] = kFALSE; | |
104 | } | |
105 | } | |
75bd7f81 | 106 | |
7e448bcc | 107 | InitLogHists(); |
4e009ce4 | 108 | |
89f05372 | 109 | } |
75bd7f81 | 110 | |
111 | //_____________________________________________________________________________ | |
6c94f330 | 112 | AliTRDtracker::AliTRDtracker(const AliTRDtracker &t) |
113 | :AliTracker(t) | |
4e009ce4 | 114 | ,fHBackfit(0x0) |
115 | ,fHClSearch(0x0) | |
116 | ,fHRefit(0x0) | |
117 | ,fHX(0x0) | |
118 | ,fHNCl(0x0) | |
119 | ,fHNClTrack(0x0) | |
120 | ,fHMinYPos(0x0) | |
121 | ,fHMinYNeg(0x0) | |
122 | ,fHMinZ(0x0) | |
123 | ,fHMinD(0x0) | |
124 | ,fHDeltaX(0x0) | |
125 | ,fHXCl(0x0) | |
ad670fba | 126 | ,fGeom(0) |
127 | ,fNclusters(0) | |
128 | ,fClusters(0) | |
129 | ,fNseeds(0) | |
130 | ,fSeeds(0) | |
131 | ,fNtracks(0) | |
132 | ,fTracks(0) | |
133 | ,fTimeBinsPerPlane(0) | |
134 | ,fAddTRDseeds(kFALSE) | |
135 | ,fNoTilt(kFALSE) | |
136 | ,fDebugStreamer(0) | |
6c94f330 | 137 | { |
ad670fba | 138 | // |
139 | // Copy constructor | |
140 | // | |
4e009ce4 | 141 | |
ad670fba | 142 | } |
143 | ||
144 | //_____________________________________________________________________________ | |
eccb46a3 | 145 | AliTRDtracker::AliTRDtracker(const TFile */*geomfile*/) |
ad670fba | 146 | :AliTracker() |
4e009ce4 | 147 | ,fHBackfit(0x0) |
148 | ,fHClSearch(0x0) | |
149 | ,fHRefit(0x0) | |
150 | ,fHX(0x0) | |
151 | ,fHNCl(0x0) | |
152 | ,fHNClTrack(0x0) | |
153 | ,fHMinYPos(0x0) | |
154 | ,fHMinYNeg(0x0) | |
155 | ,fHMinZ(0x0) | |
156 | ,fHMinD(0x0) | |
157 | ,fHDeltaX(0x0) | |
158 | ,fHXCl(0x0) | |
ad670fba | 159 | ,fGeom(0) |
160 | ,fNclusters(0) | |
161 | ,fClusters(new TObjArray(2000)) | |
162 | ,fNseeds(0) | |
163 | ,fSeeds(new TObjArray(2000)) | |
164 | ,fNtracks(0) | |
165 | ,fTracks(new TObjArray(1000)) | |
166 | ,fTimeBinsPerPlane(0) | |
167 | ,fAddTRDseeds(kFALSE) | |
168 | ,fNoTilt(kFALSE) | |
169 | ,fDebugStreamer(0) | |
46d29e70 | 170 | { |
5443e65e | 171 | // |
172 | // Main constructor | |
173 | // | |
b8dc2353 | 174 | |
4551ea7c | 175 | TDirectory *savedir = gDirectory; |
46d29e70 | 176 | |
f162af62 | 177 | fGeom = new AliTRDgeometry(); |
c6f438c0 | 178 | fGeom->ReadGeoMatrices(); |
c630aafd | 179 | |
4551ea7c | 180 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
439c63c8 | 181 | Int_t trS = geomS; |
4551ea7c | 182 | fTrSec[trS] = new AliTRDtrackingSector(fGeom,geomS); |
183 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
eccb46a3 | 184 | // Could also go ... |
4551ea7c | 185 | fHoles[icham][trS] = fGeom->IsHole(0,icham,geomS); |
3c625a9b | 186 | } |
5443e65e | 187 | } |
4551ea7c | 188 | |
f162af62 | 189 | AliTRDpadPlane *padPlane = fGeom->GetPadPlane(0,0); |
7ad19338 | 190 | Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle()); |
4551ea7c | 191 | if (tiltAngle < 0.1) { |
b8dc2353 | 192 | fNoTilt = kTRUE; |
193 | } | |
194 | ||
fc88348b | 195 | if (!AliTRDcalibDB::Instance()) { |
196 | AliFatal("Could not get calibration object"); | |
197 | } | |
198 | fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); | |
46d29e70 | 199 | |
4551ea7c | 200 | fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); |
0a29d0f1 | 201 | |
9c9d2487 | 202 | savedir->cd(); |
7e448bcc | 203 | |
204 | InitLogHists(); | |
75bd7f81 | 205 | |
5443e65e | 206 | } |
46d29e70 | 207 | |
75bd7f81 | 208 | //_____________________________________________________________________________ |
5443e65e | 209 | AliTRDtracker::~AliTRDtracker() |
46d29e70 | 210 | { |
029cd327 | 211 | // |
212 | // Destructor of AliTRDtracker | |
213 | // | |
214 | ||
89f05372 | 215 | if (fClusters) { |
216 | fClusters->Delete(); | |
217 | delete fClusters; | |
218 | } | |
4551ea7c | 219 | |
89f05372 | 220 | if (fTracks) { |
221 | fTracks->Delete(); | |
222 | delete fTracks; | |
223 | } | |
4551ea7c | 224 | |
89f05372 | 225 | if (fSeeds) { |
226 | fSeeds->Delete(); | |
227 | delete fSeeds; | |
228 | } | |
4551ea7c | 229 | |
f162af62 | 230 | if (fGeom) { |
231 | delete fGeom; | |
232 | } | |
0a29d0f1 | 233 | |
4551ea7c | 234 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
029cd327 | 235 | delete fTrSec[geomS]; |
5443e65e | 236 | } |
4551ea7c | 237 | |
7ad19338 | 238 | if (fDebugStreamer) { |
7ad19338 | 239 | delete fDebugStreamer; |
240 | } | |
9c9d2487 | 241 | |
75bd7f81 | 242 | } |
59393e34 | 243 | |
75bd7f81 | 244 | //_____________________________________________________________________________ |
245 | Int_t AliTRDtracker::LocalToGlobalID(Int_t lid) | |
246 | { | |
59393e34 | 247 | // |
75bd7f81 | 248 | // Transform internal TRD ID to global detector ID |
59393e34 | 249 | // |
75bd7f81 | 250 | |
4551ea7c | 251 | Int_t isector = fGeom->GetSector(lid); |
252 | Int_t ichamber = fGeom->GetChamber(lid); | |
253 | Int_t iplan = fGeom->GetPlane(lid); | |
254 | ||
ae079791 | 255 | AliGeomManager::ELayerID iLayer = AliGeomManager::kTRD1; |
59393e34 | 256 | switch (iplan) { |
257 | case 0: | |
ae079791 | 258 | iLayer = AliGeomManager::kTRD1; |
59393e34 | 259 | break; |
260 | case 1: | |
ae079791 | 261 | iLayer = AliGeomManager::kTRD2; |
59393e34 | 262 | break; |
263 | case 2: | |
ae079791 | 264 | iLayer = AliGeomManager::kTRD3; |
59393e34 | 265 | break; |
266 | case 3: | |
ae079791 | 267 | iLayer = AliGeomManager::kTRD4; |
59393e34 | 268 | break; |
269 | case 4: | |
ae079791 | 270 | iLayer = AliGeomManager::kTRD5; |
59393e34 | 271 | break; |
272 | case 5: | |
ae079791 | 273 | iLayer = AliGeomManager::kTRD6; |
59393e34 | 274 | break; |
275 | }; | |
4551ea7c | 276 | |
277 | Int_t modId = isector * fGeom->Ncham() + ichamber; | |
ae079791 | 278 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,modId); |
75bd7f81 | 279 | |
59393e34 | 280 | return volid; |
75bd7f81 | 281 | |
59393e34 | 282 | } |
283 | ||
75bd7f81 | 284 | //_____________________________________________________________________________ |
285 | Int_t AliTRDtracker::GlobalToLocalID(Int_t gid) | |
286 | { | |
59393e34 | 287 | // |
75bd7f81 | 288 | // Transform global detector ID to local detector ID |
59393e34 | 289 | // |
75bd7f81 | 290 | |
4551ea7c | 291 | Int_t modId = 0; |
ae079791 | 292 | AliGeomManager::ELayerID layerId = AliGeomManager::VolUIDToLayer(gid,modId); |
4551ea7c | 293 | |
294 | Int_t isector = modId / fGeom->Ncham(); | |
295 | Int_t ichamber = modId % fGeom->Ncham(); | |
296 | Int_t iLayer = -1; | |
297 | ||
59393e34 | 298 | switch (layerId) { |
ae079791 | 299 | case AliGeomManager::kTRD1: |
6c94f330 | 300 | iLayer = 0; |
59393e34 | 301 | break; |
ae079791 | 302 | case AliGeomManager::kTRD2: |
6c94f330 | 303 | iLayer = 1; |
59393e34 | 304 | break; |
ae079791 | 305 | case AliGeomManager::kTRD3: |
6c94f330 | 306 | iLayer = 2; |
59393e34 | 307 | break; |
ae079791 | 308 | case AliGeomManager::kTRD4: |
6c94f330 | 309 | iLayer = 3; |
59393e34 | 310 | break; |
ae079791 | 311 | case AliGeomManager::kTRD5: |
6c94f330 | 312 | iLayer = 4; |
59393e34 | 313 | break; |
ae079791 | 314 | case AliGeomManager::kTRD6: |
6c94f330 | 315 | iLayer = 5; |
59393e34 | 316 | break; |
317 | default: | |
6c94f330 | 318 | iLayer =-1; |
59393e34 | 319 | } |
4551ea7c | 320 | |
321 | if (iLayer < 0) { | |
322 | return -1; | |
323 | } | |
324 | ||
59393e34 | 325 | Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector); |
75bd7f81 | 326 | |
59393e34 | 327 | return lid; |
59393e34 | 328 | |
75bd7f81 | 329 | } |
59393e34 | 330 | |
75bd7f81 | 331 | //_____________________________________________________________________________ |
4551ea7c | 332 | Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 333 | { |
59393e34 | 334 | // |
eb37e0af | 335 | // Transform from cluster system to tracking system |
c6f438c0 | 336 | // |
75bd7f81 | 337 | |
33744e5d | 338 | // Magic constants for geo manager transformation |
4551ea7c | 339 | const Double_t kX0shift = 2.52; |
33744e5d | 340 | |
6c94f330 | 341 | // |
33744e5d | 342 | // Apply alignment and calibration to transform cluster |
6c94f330 | 343 | // |
344 | Int_t detector = cluster->GetDetector(); | |
4551ea7c | 345 | Int_t plane = fGeom->GetPlane(cluster->GetDetector()); |
346 | Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
347 | Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
348 | ||
349 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
350 | Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.0); // Drift distance | |
c6f438c0 | 351 | |
59393e34 | 352 | // |
59393e34 | 353 | // ExB correction |
354 | // | |
355 | Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
4e009ce4 | 356 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); |
4551ea7c | 357 | |
f162af62 | 358 | AliTRDpadPlane *padPlane = fGeom->GetPadPlane(plane,chamber); |
4551ea7c | 359 | Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); |
360 | Double_t localPos[3]; | |
361 | Double_t localPosTracker[3]; | |
c6f438c0 | 362 | localPos[0] = -cluster->GetX(); |
4551ea7c | 363 | localPos[1] = cluster->GetY() - driftX * exB; |
364 | localPos[2] = cluster->GetZ() - zshiftIdeal; | |
365 | ||
c6f438c0 | 366 | cluster->SetY(cluster->GetY() - driftX*exB); |
367 | Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
2fa01832 | 368 | cluster->SetX(xplane - cluster->GetX()); |
4551ea7c | 369 | |
2fa01832 | 370 | TGeoHMatrix *matrix = fGeom->GetCorrectionMatrix(cluster->GetDetector()); |
4551ea7c | 371 | if (!matrix) { |
372 | // No matrix found - if somebody used geometry with holes | |
c6f438c0 | 373 | AliError("Invalid Geometry - Default Geometry used\n"); |
374 | return kTRUE; | |
375 | } | |
4551ea7c | 376 | matrix->LocalToMaster(localPos,localPosTracker); |
377 | ||
378 | if (AliTRDReconstructor::StreamLevel() > 1) { | |
379 | (* fDebugStreamer) << "Transform" | |
380 | << "Cl.=" << cluster | |
381 | << "matrix.=" << matrix | |
382 | << "Detector=" << detector | |
383 | << "Sector=" << sector | |
384 | << "Plane=" << plane | |
385 | << "Chamber=" << chamber | |
386 | << "lx0=" << localPosTracker[0] | |
387 | << "ly0=" << localPosTracker[1] | |
388 | << "lz0=" << localPosTracker[2] | |
389 | << "\n"; | |
c6f438c0 | 390 | } |
4551ea7c | 391 | |
eb37e0af | 392 | cluster->SetX(localPosTracker[0]+kX0shift); |
c6f438c0 | 393 | cluster->SetY(localPosTracker[1]); |
394 | cluster->SetZ(localPosTracker[2]); | |
75bd7f81 | 395 | |
59393e34 | 396 | return kTRUE; |
75bd7f81 | 397 | |
59393e34 | 398 | } |
399 | ||
75bd7f81 | 400 | //_____________________________________________________________________________ |
4551ea7c | 401 | // Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 402 | //{ |
c6f438c0 | 403 | // // |
4551ea7c | 404 | // // Is this still needed ???? |
c6f438c0 | 405 | // // |
406 | // const Double_t kDriftCorrection = 1.01; // drift coeficient correction | |
407 | // const Double_t kTime0Cor = 0.32; // time0 correction | |
408 | // // | |
409 | // const Double_t kX0shift = 2.52; | |
410 | // const Double_t kX0shift5 = 3.05; | |
411 | ||
412 | // // | |
413 | // // apply alignment and calibration to transform cluster | |
414 | // // | |
415 | // // | |
416 | // Int_t detector = cluster->GetDetector(); | |
417 | // Int_t plane = fGeom->GetPlane(cluster->GetDetector()); | |
418 | // Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
419 | // Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
420 | ||
421 | // Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
422 | // Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance | |
423 | // // | |
424 | // // ExB correction | |
425 | // // | |
426 | // Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
4e009ce4 | 427 | // Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); |
c6f438c0 | 428 | // // |
429 | ||
430 | // AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance(); | |
431 | // AliTRDpadPlane * padPlane = commonParam->GetPadPlane(plane,chamber); | |
432 | // Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); | |
433 | // Double_t localPos[3], globalPos[3], localPosTracker[3], localPosTracker2[3]; | |
434 | // localPos[2] = -cluster->GetX(); | |
435 | // localPos[0] = cluster->GetY() - driftX*exB; | |
436 | // localPos[1] = cluster->GetZ() -zshiftIdeal; | |
437 | // TGeoHMatrix * matrix = fGeom->GetGeoMatrix(cluster->GetDetector()); | |
438 | // matrix->LocalToMaster(localPos, globalPos); | |
439 | ||
440 | // Double_t sectorAngle = 20.*(sector%18)+10; | |
441 | // TGeoHMatrix rotSector; | |
442 | // rotSector.RotateZ(sectorAngle); | |
443 | // rotSector.LocalToMaster(globalPos, localPosTracker); | |
444 | // // | |
445 | // // | |
446 | // TGeoHMatrix matrix2(*matrix); | |
447 | // matrix2.MultiplyLeft(&rotSector); | |
448 | // matrix2.LocalToMaster(localPos,localPosTracker2); | |
449 | // // | |
450 | // // | |
451 | // // | |
452 | // cluster->SetY(cluster->GetY() - driftX*exB); | |
453 | // Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
454 | // cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor)); | |
455 | // (*fDebugStreamer)<<"Transform"<< | |
456 | // "Cl.="<<cluster<< | |
457 | // "matrix.="<<matrix<< | |
458 | // "matrix2.="<<&matrix2<< | |
459 | // "Detector="<<detector<< | |
460 | // "Sector="<<sector<< | |
461 | // "Plane="<<plane<< | |
462 | // "Chamber="<<chamber<< | |
463 | // "lx0="<<localPosTracker[0]<< | |
464 | // "ly0="<<localPosTracker[1]<< | |
465 | // "lz0="<<localPosTracker[2]<< | |
466 | // "lx2="<<localPosTracker2[0]<< | |
467 | // "ly2="<<localPosTracker2[1]<< | |
468 | // "lz2="<<localPosTracker2[2]<< | |
469 | // "\n"; | |
470 | // // | |
471 | // if (plane==5) | |
472 | // cluster->SetX(localPosTracker[0]+kX0shift5); | |
473 | // else | |
474 | // cluster->SetX(localPosTracker[0]+kX0shift); | |
475 | ||
476 | // cluster->SetY(localPosTracker[1]); | |
477 | // cluster->SetZ(localPosTracker[2]); | |
478 | // return kTRUE; | |
479 | // } | |
480 | ||
75bd7f81 | 481 | //_____________________________________________________________________________ |
482 | Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) | |
483 | { | |
9c9d2487 | 484 | // |
485 | // Rotates the track when necessary | |
486 | // | |
487 | ||
488 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4551ea7c | 489 | Double_t y = track->GetY(); |
490 | Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); | |
9c9d2487 | 491 | |
4551ea7c | 492 | // Is this still needed ???? |
c630aafd | 493 | //Int_t ns = AliTRDgeometry::kNsect; |
9c9d2487 | 494 | //Int_t s=Int_t(track->GetAlpha()/alpha)%ns; |
495 | ||
4551ea7c | 496 | if (y > ymax) { |
9c9d2487 | 497 | //s = (s+1) % ns; |
4551ea7c | 498 | if (!track->Rotate( alpha)) { |
499 | return kFALSE; | |
500 | } | |
501 | } | |
502 | else if (y < -ymax) { | |
9c9d2487 | 503 | //s = (s-1+ns) % ns; |
4551ea7c | 504 | if (!track->Rotate(-alpha)) { |
505 | return kFALSE; | |
506 | } | |
9c9d2487 | 507 | } |
508 | ||
509 | return kTRUE; | |
9c9d2487 | 510 | |
75bd7f81 | 511 | } |
46e2d86c | 512 | |
75bd7f81 | 513 | //_____________________________________________________________________________ |
514 | AliTRDcluster *AliTRDtracker::GetCluster(AliTRDtrack *track, Int_t plane | |
515 | , Int_t timebin, UInt_t &index) | |
516 | { | |
46e2d86c | 517 | // |
75bd7f81 | 518 | // Try to find cluster in the backup list |
46e2d86c | 519 | // |
75bd7f81 | 520 | |
4551ea7c | 521 | AliTRDcluster *cl =0; |
6c94f330 | 522 | Int_t *indexes = track->GetBackupIndexes(); |
4551ea7c | 523 | |
524 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
525 | if (indexes[i] == 0) { | |
526 | break; | |
527 | } | |
528 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
529 | if (!cli) { | |
530 | break; | |
531 | } | |
532 | if (cli->GetLocalTimeBin() != timebin) { | |
533 | continue; | |
534 | } | |
46e2d86c | 535 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 536 | if (iplane == plane) { |
537 | cl = cli; | |
7ad19338 | 538 | index = indexes[i]; |
46e2d86c | 539 | break; |
540 | } | |
541 | } | |
75bd7f81 | 542 | |
46e2d86c | 543 | return cl; |
46e2d86c | 544 | |
75bd7f81 | 545 | } |
3c625a9b | 546 | |
75bd7f81 | 547 | //_____________________________________________________________________________ |
4551ea7c | 548 | Int_t AliTRDtracker::GetLastPlane(AliTRDtrack *track) |
75bd7f81 | 549 | { |
3c625a9b | 550 | // |
75bd7f81 | 551 | // Return last updated plane |
552 | // | |
553 | ||
4551ea7c | 554 | Int_t lastplane = 0; |
555 | Int_t *indexes = track->GetBackupIndexes(); | |
556 | ||
557 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
558 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
559 | if (!cli) { | |
560 | break; | |
561 | } | |
3c625a9b | 562 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 563 | if (iplane > lastplane) { |
3c625a9b | 564 | lastplane = iplane; |
565 | } | |
566 | } | |
75bd7f81 | 567 | |
3c625a9b | 568 | return lastplane; |
75bd7f81 | 569 | |
3c625a9b | 570 | } |
75bd7f81 | 571 | |
572 | //_____________________________________________________________________________ | |
af885e0f | 573 | Int_t AliTRDtracker::Clusters2Tracks(AliESDEvent *event) |
c630aafd | 574 | { |
575 | // | |
576 | // Finds tracks within the TRD. The ESD event is expected to contain seeds | |
577 | // at the outer part of the TRD. The seeds | |
578 | // are found within the TRD if fAddTRDseeds is TRUE. | |
579 | // The tracks are propagated to the innermost time bin | |
580 | // of the TRD and the ESD event is updated | |
581 | // | |
582 | ||
4551ea7c | 583 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
029cd327 | 584 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 585 | Int_t nseed = 0; |
586 | Int_t found = 0; | |
587 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
c630aafd | 588 | |
589 | Int_t n = event->GetNumberOfTracks(); | |
4551ea7c | 590 | for (Int_t i = 0; i < n; i++) { |
591 | ||
592 | AliESDtrack *seed = event->GetTrack(i); | |
593 | ULong_t status = seed->GetStatus(); | |
594 | if ((status & AliESDtrack::kTRDout) == 0) { | |
595 | continue; | |
596 | } | |
597 | if ((status & AliESDtrack::kTRDin) != 0) { | |
598 | continue; | |
599 | } | |
c630aafd | 600 | nseed++; |
7ad19338 | 601 | |
4551ea7c | 602 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); |
46e2d86c | 603 | //seed2->ResetCovariance(); |
4551ea7c | 604 | AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); |
605 | AliTRDtrack &t = *pt; | |
7b580082 | 606 | FollowProlongation(t); |
c630aafd | 607 | if (t.GetNumberOfClusters() >= foundMin) { |
608 | UseClusters(&t); | |
4551ea7c | 609 | CookLabel(pt,1 - fgkLabelFraction); |
610 | //t.CookdEdx(); | |
c630aafd | 611 | } |
612 | found++; | |
c630aafd | 613 | |
4551ea7c | 614 | Double_t xTPC = 250.0; |
59393e34 | 615 | if (PropagateToX(t,xTPC,fgkMaxStep)) { |
c630aafd | 616 | seed->UpdateTrackParams(pt, AliESDtrack::kTRDin); |
617 | } | |
618 | delete seed2; | |
619 | delete pt; | |
4551ea7c | 620 | |
621 | } | |
c630aafd | 622 | |
33744e5d | 623 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
624 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
625 | AliInfo(Form("Total number of found tracks: %d",found)); | |
c630aafd | 626 | |
627 | return 0; | |
75bd7f81 | 628 | |
c630aafd | 629 | } |
5443e65e | 630 | |
c630aafd | 631 | //_____________________________________________________________________________ |
af885e0f | 632 | Int_t AliTRDtracker::PropagateBack(AliESDEvent *event) |
75bd7f81 | 633 | { |
c630aafd | 634 | // |
635 | // Gets seeds from ESD event. The seeds are AliTPCtrack's found and | |
636 | // backpropagated by the TPC tracker. Each seed is first propagated | |
637 | // to the TRD, and then its prolongation is searched in the TRD. | |
638 | // If sufficiently long continuation of the track is found in the TRD | |
639 | // the track is updated, otherwise it's stored as originaly defined | |
640 | // by the TPC tracker. | |
641 | // | |
642 | ||
7e448bcc | 643 | Int_t found = 0; // number of tracks found |
4551ea7c | 644 | Float_t foundMin = 20.0; |
645 | Int_t n = event->GetNumberOfTracks(); | |
646 | ||
647 | // Sort tracks | |
648 | Float_t *quality = new Float_t[n]; | |
649 | Int_t *index = new Int_t[n]; | |
650 | for (Int_t i = 0; i < n; i++) { | |
651 | AliESDtrack *seed = event->GetTrack(i); | |
4f1c04d3 | 652 | Double_t covariance[15]; |
653 | seed->GetExternalCovariance(covariance); | |
654 | quality[i] = covariance[0]+covariance[2]; | |
7e448bcc | 655 | //quality[i] = covariance[0]; |
4f1c04d3 | 656 | } |
657 | TMath::Sort(n,quality,index,kFALSE); | |
4f1c04d3 | 658 | |
4551ea7c | 659 | for (Int_t i = 0; i < n; i++) { |
660 | ||
661 | //AliESDtrack *seed = event->GetTrack(i); | |
662 | AliESDtrack *seed = event->GetTrack(index[i]); | |
7e448bcc | 663 | fHBackfit->Fill(0); |
c630aafd | 664 | |
4551ea7c | 665 | ULong_t status = seed->GetStatus(); |
666 | if ((status & AliESDtrack::kTPCout) == 0) { | |
7e448bcc | 667 | fHBackfit->Fill(1); |
4551ea7c | 668 | continue; |
669 | } | |
7e448bcc | 670 | |
4551ea7c | 671 | if ((status & AliESDtrack::kTRDout) != 0) { |
7e448bcc | 672 | fHBackfit->Fill(2); |
4551ea7c | 673 | continue; |
674 | } | |
675 | ||
676 | Int_t lbl = seed->GetLabel(); | |
c630aafd | 677 | AliTRDtrack *track = new AliTRDtrack(*seed); |
678 | track->SetSeedLabel(lbl); | |
4551ea7c | 679 | seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup |
c630aafd | 680 | fNseeds++; |
4551ea7c | 681 | Float_t p4 = track->GetC(); |
f6625211 | 682 | Int_t expectedClr = FollowBackProlongation(*track); |
7e448bcc | 683 | |
684 | fHBackfit->Fill(3); | |
685 | fHX->Fill(track->GetX()); | |
686 | ||
687 | ||
688 | // store the last measurement | |
689 | /* | |
690 | fHNClTrack->Fill(track->GetNumberOfClusters()); | |
691 | if (track->GetNumberOfClusters() >= foundMin) { | |
692 | ||
693 | fHBackfit->Fill(4); | |
694 | track->CookdEdx(); | |
695 | CookdEdxTimBin(*track); | |
696 | CookLabel(track,1 - fgkLabelFraction); | |
697 | if (track->GetBackupTrack()) { | |
698 | //fHBackfit->Fill(5); | |
699 | UseClusters(track->GetBackupTrack()); | |
700 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
701 | } | |
702 | } | |
703 | */ | |
704 | ||
705 | /**/ | |
706 | // inter-tracks competition ??? | |
4551ea7c | 707 | if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) || |
708 | (TMath::Abs(track->GetPt()) > 0.8)) { | |
7e448bcc | 709 | |
710 | fHBackfit->Fill(4); | |
711 | ||
4f1c04d3 | 712 | // |
4551ea7c | 713 | // Make backup for back propagation |
4f1c04d3 | 714 | // |
7e448bcc | 715 | |
4f1c04d3 | 716 | Int_t foundClr = track->GetNumberOfClusters(); |
717 | if (foundClr >= foundMin) { | |
718 | track->CookdEdx(); | |
8979685e | 719 | CookdEdxTimBin(*track); |
4551ea7c | 720 | CookLabel(track,1 - fgkLabelFraction); |
721 | if (track->GetBackupTrack()) { | |
722 | UseClusters(track->GetBackupTrack()); | |
723 | } | |
724 | ||
725 | // Sign only gold tracks | |
726 | if (track->GetChi2() / track->GetNumberOfClusters() < 4) { | |
7e448bcc | 727 | if ((seed->GetKinkIndex(0) == 0) && |
4551ea7c | 728 | (TMath::Abs(track->GetPt()) < 1.5)) { |
729 | UseClusters(track); | |
730 | } | |
4f1c04d3 | 731 | } |
732 | Bool_t isGold = kFALSE; | |
733 | ||
4551ea7c | 734 | // Full gold track |
735 | if (track->GetChi2() / track->GetNumberOfClusters() < 5) { | |
736 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
737 | if (track->GetBackupTrack()) { | |
738 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
7e448bcc | 739 | |
4551ea7c | 740 | } |
4f1c04d3 | 741 | isGold = kTRUE; |
7e448bcc | 742 | //fHBackfit->Fill() |
4f1c04d3 | 743 | } |
4551ea7c | 744 | |
745 | // Almost gold track | |
746 | if ((!isGold) && | |
747 | (track->GetNCross() == 0) && | |
748 | (track->GetChi2() / track->GetNumberOfClusters() < 7)) { | |
749 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
750 | if (track->GetBackupTrack()) { | |
751 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
752 | } | |
f4e9508c | 753 | isGold = kTRUE; |
754 | } | |
4551ea7c | 755 | |
756 | if ((!isGold) && | |
757 | (track->GetBackupTrack())) { | |
7e448bcc | 758 | if ((track->GetBackupTrack()->GetNumberOfClusters() > foundMin) && |
759 | ((track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1)) < 7)) { | |
4551ea7c | 760 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); |
4f1c04d3 | 761 | isGold = kTRUE; |
762 | } | |
763 | } | |
4551ea7c | 764 | |
7e448bcc | 765 | if ((track->StatusForTOF() > 0) && |
766 | (track->GetNCross() == 0) && | |
27eaf44b | 767 | (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) { |
6c94f330 | 768 | //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); |
7ad19338 | 769 | } |
4551ea7c | 770 | |
16d9fbba | 771 | } |
c630aafd | 772 | } |
7e448bcc | 773 | /**/ |
4551ea7c | 774 | |
7e448bcc | 775 | /**/ |
8979685e | 776 | // Debug part of tracking |
4551ea7c | 777 | TTreeSRedirector &cstream = *fDebugStreamer; |
31fd97b2 | 778 | 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 | 779 | if (AliTRDReconstructor::StreamLevel() > 0) { |
780 | if (track->GetBackupTrack()) { | |
781 | cstream << "Tracks" | |
31fd97b2 | 782 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 783 | << "ESD.=" << seed |
784 | << "trd.=" << track | |
785 | << "trdback.=" << track->GetBackupTrack() | |
786 | << "\n"; | |
787 | } | |
788 | else { | |
789 | cstream << "Tracks" | |
31fd97b2 | 790 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 791 | << "ESD.=" << seed |
792 | << "trd.=" << track | |
793 | << "trdback.=" << track | |
794 | << "\n"; | |
d337ef8d | 795 | } |
8979685e | 796 | } |
7e448bcc | 797 | /**/ |
4551ea7c | 798 | |
799 | // Propagation to the TOF (I.Belikov) | |
800 | if (track->GetStop() == kFALSE) { | |
7e448bcc | 801 | fHBackfit->Fill(5); |
802 | ||
4551ea7c | 803 | Double_t xtof = 371.0; |
7e448bcc | 804 | Double_t xTOF0 = 370.0; |
805 | ||
4551ea7c | 806 | Double_t c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); |
807 | if (TMath::Abs(c2) >= 0.99) { | |
7e448bcc | 808 | |
809 | fHBackfit->Fill(6); | |
c5a8e3df | 810 | delete track; |
811 | continue; | |
812 | } | |
7e448bcc | 813 | |
59393e34 | 814 | PropagateToX(*track,xTOF0,fgkMaxStep); |
4551ea7c | 815 | |
816 | // Energy losses taken to the account - check one more time | |
817 | c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); | |
818 | if (TMath::Abs(c2) >= 0.99) { | |
7e448bcc | 819 | |
820 | fHBackfit->Fill(7); | |
4f1c04d3 | 821 | delete track; |
822 | continue; | |
823 | } | |
7e448bcc | 824 | |
825 | //if (!PropagateToX(*track,xTOF0,fgkMaxStep)) { | |
826 | // fHBackfit->Fill(7); | |
827 | //delete track; | |
828 | // continue; | |
829 | //} | |
4f1c04d3 | 830 | |
4551ea7c | 831 | Double_t ymax = xtof * TMath::Tan(0.5 * AliTRDgeometry::GetAlpha()); |
832 | Double_t y; | |
833 | track->GetYAt(xtof,GetBz(),y); | |
7e448bcc | 834 | if (y > ymax) { |
4551ea7c | 835 | if (!track->Rotate( AliTRDgeometry::GetAlpha())) { |
7e448bcc | 836 | fHBackfit->Fill(8); |
7ac6fa52 | 837 | delete track; |
7bed16a7 | 838 | continue; |
7ac6fa52 | 839 | } |
4551ea7c | 840 | } |
841 | else if (y < -ymax) { | |
7ac6fa52 | 842 | if (!track->Rotate(-AliTRDgeometry::GetAlpha())) { |
7e448bcc | 843 | fHBackfit->Fill(9); |
7ac6fa52 | 844 | delete track; |
7bed16a7 | 845 | continue; |
7ac6fa52 | 846 | } |
3c625a9b | 847 | } |
7e448bcc | 848 | |
3c625a9b | 849 | if (track->PropagateTo(xtof)) { |
4551ea7c | 850 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); |
7e448bcc | 851 | fHBackfit->Fill(10); |
852 | ||
4551ea7c | 853 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
854 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 855 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
856 | } | |
857 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 858 | } |
4551ea7c | 859 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
860 | if (track->GetNumberOfClusters() > foundMin) { | |
7e448bcc | 861 | fHBackfit->Fill(11); |
4551ea7c | 862 | found++; |
863 | } | |
3c625a9b | 864 | } |
4551ea7c | 865 | |
866 | } | |
867 | else { | |
7e448bcc | 868 | |
869 | fHBackfit->Fill(12); | |
870 | ||
4551ea7c | 871 | if ((track->GetNumberOfClusters() > 15) && |
872 | (track->GetNumberOfClusters() > 0.5*expectedClr)) { | |
7e448bcc | 873 | |
4551ea7c | 874 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); |
7e448bcc | 875 | fHBackfit->Fill(13); |
876 | ||
16d9fbba | 877 | //seed->SetStatus(AliESDtrack::kTRDStop); |
4551ea7c | 878 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
879 | for (Int_t j = 0; j <AliESDtrack::kNSlice; j++) { | |
6d45eaef | 880 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
881 | } | |
882 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 883 | } |
7ad19338 | 884 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
3c625a9b | 885 | found++; |
886 | } | |
4551ea7c | 887 | |
1e9bb598 | 888 | } |
4551ea7c | 889 | |
7ad19338 | 890 | seed->SetTRDQuality(track->StatusForTOF()); |
27eaf44b | 891 | seed->SetTRDBudget(track->GetBudget(0)); |
8979685e | 892 | |
7e448bcc | 893 | fHBackfit->Fill(14); |
d9b8978b | 894 | delete track; |
c630aafd | 895 | } |
ad670fba | 896 | |
33744e5d | 897 | AliInfo(Form("Number of seeds: %d",fNseeds)); |
898 | AliInfo(Form("Number of back propagated TRD tracks: %d",found)); | |
6c94f330 | 899 | |
33744e5d | 900 | // New seeding |
901 | if (AliTRDReconstructor::SeedingOn()) { | |
4551ea7c | 902 | MakeSeedsMI(3,5,event); |
33744e5d | 903 | } |
904 | ||
905 | fSeeds->Clear(); | |
4551ea7c | 906 | fNseeds = 0; |
7ad19338 | 907 | |
4f1c04d3 | 908 | delete [] index; |
909 | delete [] quality; | |
910 | ||
7e448bcc | 911 | SaveLogHists(); |
912 | ||
1e9bb598 | 913 | return 0; |
1e9bb598 | 914 | } |
915 | ||
916 | //_____________________________________________________________________________ | |
af885e0f | 917 | Int_t AliTRDtracker::RefitInward(AliESDEvent *event) |
1e9bb598 | 918 | { |
919 | // | |
920 | // Refits tracks within the TRD. The ESD event is expected to contain seeds | |
921 | // at the outer part of the TRD. | |
922 | // The tracks are propagated to the innermost time bin | |
923 | // of the TRD and the ESD event is updated | |
924 | // Origin: Thomas KUHR (Thomas.Kuhr@cern.ch) | |
925 | // | |
926 | ||
4551ea7c | 927 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
1e9bb598 | 928 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 929 | Int_t nseed = 0; |
930 | Int_t found = 0; | |
931 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
4f1c04d3 | 932 | AliTRDtrack seed2; |
6c94f330 | 933 | |
1e9bb598 | 934 | Int_t n = event->GetNumberOfTracks(); |
4551ea7c | 935 | for (Int_t i = 0; i < n; i++) { |
936 | ||
937 | AliESDtrack *seed = event->GetTrack(i); | |
938 | new (&seed2) AliTRDtrack(*seed); | |
7e448bcc | 939 | fHRefit->Fill(0); |
940 | ||
4551ea7c | 941 | if (seed2.GetX() < 270.0) { |
942 | seed->UpdateTrackParams(&seed2,AliESDtrack::kTRDbackup); // Backup TPC track - only update | |
7e448bcc | 943 | fHRefit->Fill(1); |
f4e9508c | 944 | continue; |
945 | } | |
946 | ||
4551ea7c | 947 | ULong_t status = seed->GetStatus(); |
948 | if ((status & AliESDtrack::kTRDout) == 0) { | |
7e448bcc | 949 | fHRefit->Fill(2); |
0dd7d129 | 950 | continue; |
951 | } | |
4551ea7c | 952 | if ((status & AliESDtrack::kTRDin) != 0) { |
7e448bcc | 953 | fHRefit->Fill(3); |
0dd7d129 | 954 | continue; |
955 | } | |
7e448bcc | 956 | |
6c94f330 | 957 | nseed++; |
7e448bcc | 958 | fHRefit->Fill(4); |
6c94f330 | 959 | |
4551ea7c | 960 | seed2.ResetCovariance(50.0); |
6c94f330 | 961 | |
4f1c04d3 | 962 | AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha()); |
4551ea7c | 963 | Int_t *indexes2 = seed2.GetIndexes(); |
964 | for (Int_t i = 0; i < AliESDtrack::kNPlane;i++) { | |
965 | for (Int_t j = 0; j < AliESDtrack::kNSlice;j++) { | |
6d45eaef | 966 | pt->SetPIDsignals(seed2.GetPIDsignals(i,j),i,j); |
967 | } | |
7ad19338 | 968 | pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i); |
969 | } | |
eab5961e | 970 | |
4551ea7c | 971 | Int_t *indexes3 = pt->GetBackupIndexes(); |
972 | for (Int_t i = 0; i < 200;i++) { | |
973 | if (indexes2[i] == 0) { | |
974 | break; | |
975 | } | |
46e2d86c | 976 | indexes3[i] = indexes2[i]; |
4551ea7c | 977 | } |
978 | ||
46e2d86c | 979 | //AliTRDtrack *pt = seed2; |
4551ea7c | 980 | AliTRDtrack &t = *pt; |
7b580082 | 981 | FollowProlongation(t); |
1e9bb598 | 982 | if (t.GetNumberOfClusters() >= foundMin) { |
4551ea7c | 983 | //UseClusters(&t); |
6c94f330 | 984 | //CookLabel(pt, 1-fgkLabelFraction); |
7ad19338 | 985 | t.CookdEdx(); |
986 | CookdEdxTimBin(t); | |
1e9bb598 | 987 | } |
988 | found++; | |
33744e5d | 989 | |
4551ea7c | 990 | Double_t xTPC = 250.0; |
991 | if (PropagateToX(t,xTPC,fgkMaxStep)) { | |
7e448bcc | 992 | |
4551ea7c | 993 | seed->UpdateTrackParams(pt,AliESDtrack::kTRDrefit); |
7e448bcc | 994 | fHRefit->Fill(5); |
995 | ||
4551ea7c | 996 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
997 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 998 | seed->SetTRDsignals(pt->GetPIDsignals(i,j),i,j); |
999 | } | |
7ad19338 | 1000 | seed->SetTRDTimBin(pt->GetPIDTimBin(i),i); |
1001 | } | |
4551ea7c | 1002 | } |
1003 | else { | |
1004 | // If not prolongation to TPC - propagate without update | |
7e448bcc | 1005 | fHRefit->Fill(5); |
4551ea7c | 1006 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); |
1007 | seed2->ResetCovariance(5.0); | |
1008 | AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); | |
7bed16a7 | 1009 | delete seed2; |
59393e34 | 1010 | if (PropagateToX(*pt2,xTPC,fgkMaxStep)) { |
4551ea7c | 1011 | pt2->CookdEdx( ); |
eab5961e | 1012 | CookdEdxTimBin(*pt2); |
4551ea7c | 1013 | seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit); |
7e448bcc | 1014 | fHRefit->Fill(6); |
1015 | ||
4551ea7c | 1016 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
1017 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 1018 | seed->SetTRDsignals(pt2->GetPIDsignals(i,j),i,j); |
1019 | } | |
7ad19338 | 1020 | seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i); |
1021 | } | |
eab5961e | 1022 | } |
7bed16a7 | 1023 | delete pt2; |
4551ea7c | 1024 | } |
1025 | ||
1e9bb598 | 1026 | delete pt; |
4551ea7c | 1027 | |
eab5961e | 1028 | } |
1e9bb598 | 1029 | |
33744e5d | 1030 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
1031 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
1e9bb598 | 1032 | |
7e448bcc | 1033 | SaveLogHists(); |
c630aafd | 1034 | return 0; |
c630aafd | 1035 | } |
1036 | ||
75bd7f81 | 1037 | //_____________________________________________________________________________ |
4551ea7c | 1038 | Int_t AliTRDtracker::FollowProlongation(AliTRDtrack &t) |
8979685e | 1039 | { |
75bd7f81 | 1040 | // |
8979685e | 1041 | // Starting from current position on track=t this function tries |
1042 | // to extrapolate the track up to timeBin=0 and to confirm prolongation | |
1043 | // if a close cluster is found. Returns the number of clusters | |
1044 | // expected to be found in sensitive layers | |
1045 | // GeoManager used to estimate mean density | |
75bd7f81 | 1046 | // |
1047 | ||
4551ea7c | 1048 | Int_t sector; |
1049 | Int_t lastplane = GetLastPlane(&t); | |
3551db50 | 1050 | Double_t radLength = 0.0; |
4551ea7c | 1051 | Double_t rho = 0.0; |
1052 | Int_t expectedNumberOfClusters = 0; | |
1053 | ||
1054 | for (Int_t iplane = lastplane; iplane >= 0; iplane--) { | |
1055 | ||
1056 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); | |
1057 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
1058 | ||
8979685e | 1059 | // |
4551ea7c | 1060 | // Propagate track close to the plane if neccessary |
7b580082 | 1061 | // |
1062 | Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX(); | |
4551ea7c | 1063 | if (currentx < (-fgkMaxStep + t.GetX())) { |
1064 | // Propagate closer to chamber - safety space fgkMaxStep | |
1065 | if (!PropagateToX(t,currentx+fgkMaxStep,fgkMaxStep)) { | |
1066 | break; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | if (!AdjustSector(&t)) { | |
1071 | break; | |
8979685e | 1072 | } |
4551ea7c | 1073 | |
59393e34 | 1074 | // |
4551ea7c | 1075 | // Get material budget |
8979685e | 1076 | // |
4551ea7c | 1077 | Double_t xyz0[3]; |
1078 | Double_t xyz1[3]; | |
1079 | Double_t param[7]; | |
1080 | Double_t x; | |
1081 | Double_t y; | |
1082 | Double_t z; | |
1083 | ||
1084 | // Starting global position | |
1085 | t.GetXYZ(xyz0); | |
1086 | // End global position | |
7b580082 | 1087 | x = fTrSec[0]->GetLayer(row0)->GetX(); |
4551ea7c | 1088 | if (!t.GetProlongation(x,y,z)) { |
1089 | break; | |
1090 | } | |
1091 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1092 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1093 | xyz1[2] = z; | |
7b580082 | 1094 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1095 | rho = param[0]; |
1096 | radLength = param[1]; // Get mean propagation parameters | |
1097 | ||
8979685e | 1098 | // |
4551ea7c | 1099 | // Propagate and update |
8979685e | 1100 | // |
8979685e | 1101 | sector = t.GetSector(); |
4551ea7c | 1102 | //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { |
1103 | for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) { | |
1104 | ||
1105 | Int_t ilayer = GetGlobalTimeBin(0,iplane,itime); | |
8979685e | 1106 | expectedNumberOfClusters++; |
27eaf44b | 1107 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1108 | if (t.GetX() > 345.0) { |
27eaf44b | 1109 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1110 | } |
1111 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
7e448bcc | 1112 | AliTRDcluster *cl = 0; |
4551ea7c | 1113 | UInt_t index = 0; |
1114 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1115 | x = timeBin.GetX(); |
4551ea7c | 1116 | |
8979685e | 1117 | if (timeBin) { |
4551ea7c | 1118 | |
1119 | AliTRDcluster *cl0 = timeBin[0]; | |
1120 | if (!cl0) { | |
1121 | // No clusters in given time bin | |
1122 | continue; | |
1123 | } | |
1124 | ||
1125 | Int_t plane = fGeom->GetPlane(cl0->GetDetector()); | |
1126 | if (plane > lastplane) { | |
1127 | continue; | |
1128 | } | |
1129 | ||
8979685e | 1130 | Int_t timebin = cl0->GetLocalTimeBin(); |
4551ea7c | 1131 | AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index); |
1132 | ||
8979685e | 1133 | if (cl2) { |
4551ea7c | 1134 | |
1135 | cl = cl2; | |
33744e5d | 1136 | //Double_t h01 = GetTiltFactor(cl); //I.B's fix |
6c94f330 | 1137 | //maxChi2=t.GetPredictedChi2(cl,h01); |
4551ea7c | 1138 | |
7b580082 | 1139 | } |
8979685e | 1140 | if (cl) { |
4551ea7c | 1141 | |
1142 | //if (cl->GetNPads()<5) | |
59393e34 | 1143 | Double_t dxsample = timeBin.GetdX(); |
1144 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1145 | Double_t h01 = GetTiltFactor(cl); |
1146 | Int_t det = cl->GetDetector(); | |
1147 | Int_t plane = fGeom->GetPlane(det); | |
1148 | if (t.GetX() > 345.0) { | |
27eaf44b | 1149 | t.SetNLast(t.GetNLast() + 1); |
1150 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1151 | } |
4551ea7c | 1152 | |
59393e34 | 1153 | Double_t xcluster = cl->GetX(); |
1154 | t.PropagateTo(xcluster,radLength,rho); | |
6c94f330 | 1155 | |
4551ea7c | 1156 | if (!AdjustSector(&t)) { |
1157 | break; //I.B's fix | |
1158 | } | |
1159 | maxChi2 = t.GetPredictedChi2(cl,h01); | |
6c94f330 | 1160 | |
c2239ca8 | 1161 | if (maxChi2<1e+10) |
1162 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { | |
1163 | // ???? | |
1164 | } | |
4551ea7c | 1165 | |
6c94f330 | 1166 | } |
4551ea7c | 1167 | |
8979685e | 1168 | } |
4551ea7c | 1169 | |
6c94f330 | 1170 | } |
4551ea7c | 1171 | |
8979685e | 1172 | } |
8979685e | 1173 | |
75bd7f81 | 1174 | return expectedNumberOfClusters; |
69b55c55 | 1175 | |
75bd7f81 | 1176 | } |
7b580082 | 1177 | |
75bd7f81 | 1178 | //_____________________________________________________________________________ |
4551ea7c | 1179 | Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack &t) |
8979685e | 1180 | { |
75bd7f81 | 1181 | // |
8979685e | 1182 | // Starting from current radial position of track <t> this function |
1183 | // extrapolates the track up to outer timebin and in the sensitive | |
1184 | // layers confirms prolongation if a close cluster is found. | |
1185 | // Returns the number of clusters expected to be found in sensitive layers | |
1186 | // Use GEO manager for material Description | |
75bd7f81 | 1187 | // |
7e448bcc | 1188 | // return number of assigned clusters ? |
1189 | // | |
1190 | ||
59393e34 | 1191 | |
4551ea7c | 1192 | Int_t sector; |
1193 | Int_t clusters[1000]; | |
6c94f330 | 1194 | Double_t radLength = 0.0; |
4551ea7c | 1195 | Double_t rho = 0.0; |
1196 | Int_t expectedNumberOfClusters = 0; | |
1197 | Float_t ratio0 = 0.0; | |
8979685e | 1198 | AliTRDtracklet tracklet; |
33744e5d | 1199 | |
77566f2a | 1200 | // Calibration fill 2D |
082a2283 | 1201 | AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance(); |
77566f2a | 1202 | if (!calibra) { |
1203 | AliInfo("Could not get Calibra instance\n"); | |
1204 | } | |
8ec526a4 | 1205 | if (calibra->GetMITracking()) { |
1206 | calibra->ResetTrack(); | |
77566f2a | 1207 | } |
1208 | ||
33744e5d | 1209 | for (Int_t i = 0; i < 1000; i++) { |
1210 | clusters[i] = -1; | |
1211 | } | |
1212 | ||
4551ea7c | 1213 | for (Int_t iplane = 0; iplane < AliESDtrack::kNPlane; iplane++) { |
1214 | ||
7e448bcc | 1215 | int hb = iplane * 10; |
1216 | fHClSearch->Fill(hb); | |
1217 | ||
4551ea7c | 1218 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); |
1219 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
1220 | Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX(); | |
1221 | if (currentx < t.GetX()) { | |
7e448bcc | 1222 | fHClSearch->Fill(hb+1); |
4551ea7c | 1223 | continue; |
1224 | } | |
1225 | ||
6c94f330 | 1226 | // |
4551ea7c | 1227 | // Propagate closer to chamber if neccessary |
6c94f330 | 1228 | // |
4551ea7c | 1229 | if (currentx > (fgkMaxStep + t.GetX())) { |
1230 | if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) { | |
7e448bcc | 1231 | fHClSearch->Fill(hb+2); |
4551ea7c | 1232 | break; |
1233 | } | |
1234 | } | |
1235 | if (!AdjustSector(&t)) { | |
7e448bcc | 1236 | fHClSearch->Fill(hb+3); |
4551ea7c | 1237 | break; |
8979685e | 1238 | } |
4551ea7c | 1239 | if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) { |
7e448bcc | 1240 | fHClSearch->Fill(hb+4); |
4551ea7c | 1241 | break; |
1242 | } | |
1243 | ||
8979685e | 1244 | // |
4551ea7c | 1245 | // Get material budget inside of chamber |
59393e34 | 1246 | // |
4551ea7c | 1247 | Double_t xyz0[3]; |
1248 | Double_t xyz1[3]; | |
1249 | Double_t param[7]; | |
1250 | Double_t x; | |
1251 | Double_t y; | |
1252 | Double_t z; | |
1253 | // Starting global position | |
1254 | t.GetXYZ(xyz0); | |
1255 | // End global position | |
7b580082 | 1256 | x = fTrSec[0]->GetLayer(rowlast)->GetX(); |
4551ea7c | 1257 | if (!t.GetProlongation(x,y,z)) { |
7e448bcc | 1258 | fHClSearch->Fill(hb+5); |
4551ea7c | 1259 | break; |
1260 | } | |
1261 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1262 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1263 | xyz1[2] = z; | |
7b580082 | 1264 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1265 | rho = param[0]; |
1266 | radLength = param[1]; // Get mean propagation parameters | |
1267 | ||
8979685e | 1268 | // |
7b580082 | 1269 | // Find clusters |
8979685e | 1270 | // |
6c94f330 | 1271 | sector = t.GetSector(); |
4551ea7c | 1272 | Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); |
7e448bcc | 1273 | fHNCl->Fill(tracklet.GetN()); |
1274 | ||
4551ea7c | 1275 | if (tracklet.GetN() < GetTimeBinsPerPlane()/3) { |
7e448bcc | 1276 | fHClSearch->Fill(hb+6); |
4551ea7c | 1277 | continue; |
1278 | } | |
1279 | ||
8979685e | 1280 | // |
7b580082 | 1281 | // Propagate and update track |
8979685e | 1282 | // |
4551ea7c | 1283 | for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) { |
1284 | ||
1285 | Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); | |
8979685e | 1286 | expectedNumberOfClusters++; |
27eaf44b | 1287 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1288 | if (t.GetX() > 345.0) { |
27eaf44b | 1289 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1290 | } |
1291 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
7e448bcc | 1292 | AliTRDcluster *cl = 0; |
4551ea7c | 1293 | UInt_t index = 0; |
1294 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1295 | x = timeBin.GetX(); |
4551ea7c | 1296 | |
8979685e | 1297 | if (timeBin) { |
4551ea7c | 1298 | |
1299 | if (clusters[ilayer] > 0) { | |
8979685e | 1300 | index = clusters[ilayer]; |
4551ea7c | 1301 | cl = (AliTRDcluster *)GetCluster(index); |
33744e5d | 1302 | //Double_t h01 = GetTiltFactor(cl); // I.B's fix |
1303 | //maxChi2=t.GetPredictedChi2(cl,h01); // | |
8979685e | 1304 | } |
1305 | ||
1306 | if (cl) { | |
4551ea7c | 1307 | |
1308 | //if (cl->GetNPads() < 5) | |
59393e34 | 1309 | Double_t dxsample = timeBin.GetdX(); |
1310 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1311 | Double_t h01 = GetTiltFactor(cl); |
1312 | Int_t det = cl->GetDetector(); | |
1313 | Int_t plane = fGeom->GetPlane(det); | |
1314 | if (t.GetX() > 345.0) { | |
27eaf44b | 1315 | t.SetNLast(t.GetNLast() + 1); |
1316 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1317 | } |
59393e34 | 1318 | Double_t xcluster = cl->GetX(); |
1319 | t.PropagateTo(xcluster,radLength,rho); | |
4551ea7c | 1320 | maxChi2 = t.GetPredictedChi2(cl,h01); |
6c94f330 | 1321 | |
c2239ca8 | 1322 | if (maxChi2<1e+10) |
1323 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { | |
1324 | if (!t.Update(cl,maxChi2,index,h01)) { | |
1325 | // ???? | |
1326 | } | |
1327 | } | |
4551ea7c | 1328 | |
8ec526a4 | 1329 | if (calibra->GetMITracking()) { |
77566f2a | 1330 | calibra->UpdateHistograms(cl,&t); |
1331 | } | |
1332 | ||
4551ea7c | 1333 | // Reset material budget if 2 consecutive gold |
1334 | if (plane > 0) { | |
27eaf44b | 1335 | if ((t.GetTracklets(plane).GetN() + t.GetTracklets(plane-1).GetN()) > 20) { |
1336 | t.SetBudget(2,0.0); | |
4551ea7c | 1337 | } |
1338 | } | |
1339 | ||
1340 | } | |
1341 | ||
8979685e | 1342 | } |
4551ea7c | 1343 | |
59393e34 | 1344 | } |
4551ea7c | 1345 | |
1346 | ratio0 = ncl / Float_t(fTimeBinsPerPlane); | |
27eaf44b | 1347 | Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1); |
1348 | if ((tracklet.GetChi2() < 18.0) && | |
1349 | (ratio0 > 0.8) && | |
1350 | (ratio1 > 0.6) && | |
1351 | (ratio0+ratio1 > 1.5) && | |
1352 | (t.GetNCross() == 0) && | |
1353 | (TMath::Abs(t.GetSnp()) < 0.85) && | |
1354 | (t.GetNumberOfClusters() > 20)){ | |
7e448bcc | 1355 | //if (ratio0 > 0.8) { |
4551ea7c | 1356 | t.MakeBackupTrack(); // Make backup of the track until is gold |
59393e34 | 1357 | } |
7b580082 | 1358 | |
8979685e | 1359 | } |
5443e65e | 1360 | |
75bd7f81 | 1361 | return expectedNumberOfClusters; |
75bd7f81 | 1362 | } |
1e9bb598 | 1363 | |
75bd7f81 | 1364 | //_____________________________________________________________________________ |
4551ea7c | 1365 | Int_t AliTRDtracker::PropagateToX(AliTRDtrack &t, Double_t xToGo, Double_t maxStep) |
5443e65e | 1366 | { |
75bd7f81 | 1367 | // |
5443e65e | 1368 | // Starting from current radial position of track <t> this function |
1369 | // extrapolates the track up to radial position <xToGo>. | |
1370 | // Returns 1 if track reaches the plane, and 0 otherwise | |
75bd7f81 | 1371 | // |
1372 | ||
59393e34 | 1373 | const Double_t kEpsilon = 0.00001; |
4551ea7c | 1374 | //Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); |
1375 | Double_t xpos = t.GetX(); | |
1376 | Double_t dir = (xpos<xToGo) ? 1.0 : -1.0; | |
1377 | ||
1378 | while (((xToGo-xpos)*dir) > kEpsilon) { | |
1379 | ||
1380 | Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep); | |
1381 | ||
1382 | Double_t xyz0[3]; | |
1383 | Double_t xyz1[3]; | |
1384 | Double_t param[7]; | |
1385 | Double_t x; | |
1386 | Double_t y; | |
1387 | Double_t z; | |
1388 | // Starting global position | |
1389 | t.GetXYZ(xyz0); | |
1390 | x = xpos + step; | |
1391 | ||
1392 | if (!t.GetProlongation(x,y,z)) { | |
1393 | return 0; // No prolongation | |
1394 | } | |
1395 | ||
1396 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1397 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1398 | xyz1[2] = z; | |
1399 | ||
59393e34 | 1400 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1401 | if (!t.PropagateTo(x,param[1],param[0])) { |
1402 | return 0; | |
1403 | } | |
59393e34 | 1404 | AdjustSector(&t); |
1405 | xpos = t.GetX(); | |
4551ea7c | 1406 | |
5443e65e | 1407 | } |
75bd7f81 | 1408 | |
5443e65e | 1409 | return 1; |
5443e65e | 1410 | |
59393e34 | 1411 | } |
5443e65e | 1412 | |
c630aafd | 1413 | //_____________________________________________________________________________ |
1414 | Int_t AliTRDtracker::LoadClusters(TTree *cTree) | |
1415 | { | |
75bd7f81 | 1416 | // |
c630aafd | 1417 | // Fills clusters into TRD tracking_sectors |
1418 | // Note that the numbering scheme for the TRD tracking_sectors | |
1419 | // differs from that of TRD sectors | |
75bd7f81 | 1420 | // |
1421 | ||
c630aafd | 1422 | if (ReadClusters(fClusters,cTree)) { |
4551ea7c | 1423 | AliError("Problem with reading the clusters !"); |
c630aafd | 1424 | return 1; |
1425 | } | |
4551ea7c | 1426 | Int_t ncl = fClusters->GetEntriesFast(); |
1427 | fNclusters = ncl; | |
1428 | AliInfo(Form("Sorting %d clusters",ncl)); | |
c630aafd | 1429 | |
1430 | UInt_t index; | |
4551ea7c | 1431 | for (Int_t ichamber = 0; ichamber < 5; ichamber++) { |
1432 | for (Int_t isector = 0; isector < 18; isector++) { | |
1433 | fHoles[ichamber][isector] = kTRUE; | |
3c625a9b | 1434 | } |
4551ea7c | 1435 | } |
ad670fba | 1436 | |
6c94f330 | 1437 | while (ncl--) { |
33744e5d | 1438 | |
4551ea7c | 1439 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(ncl); |
1440 | Int_t detector = c->GetDetector(); | |
1441 | Int_t localTimeBin = c->GetLocalTimeBin(); | |
1442 | Int_t sector = fGeom->GetSector(detector); | |
1443 | Int_t plane = fGeom->GetPlane(detector); | |
439c63c8 | 1444 | Int_t trackingSector = sector; |
4551ea7c | 1445 | |
7e448bcc | 1446 | //if (c->GetLabel(0) > 0) { |
1447 | if (c->GetQ() > 10) { | |
3c625a9b | 1448 | Int_t chamber = fGeom->GetChamber(detector); |
4551ea7c | 1449 | fHoles[chamber][trackingSector] = kFALSE; |
3c625a9b | 1450 | } |
c630aafd | 1451 | |
6c94f330 | 1452 | Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); |
4551ea7c | 1453 | if (gtb < 0) { |
1454 | continue; | |
1455 | } | |
029cd327 | 1456 | Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); |
c630aafd | 1457 | |
4551ea7c | 1458 | index = ncl; |
33744e5d | 1459 | |
1460 | // Apply pos correction | |
7e448bcc | 1461 | Transform(c); |
1462 | fHXCl->Fill(c->GetX()); | |
33744e5d | 1463 | |
7e448bcc | 1464 | fTrSec[trackingSector]->GetLayer(layer)->SetX(c->GetX()); |
1465 | fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); | |
4551ea7c | 1466 | } |
75bd7f81 | 1467 | |
c630aafd | 1468 | return 0; |
75bd7f81 | 1469 | |
c630aafd | 1470 | } |
1471 | ||
5443e65e | 1472 | //_____________________________________________________________________________ |
b7a0917f | 1473 | void AliTRDtracker::UnloadClusters() |
5443e65e | 1474 | { |
1475 | // | |
1476 | // Clears the arrays of clusters and tracks. Resets sectors and timebins | |
1477 | // | |
1478 | ||
4551ea7c | 1479 | Int_t i; |
1480 | Int_t nentr; | |
5443e65e | 1481 | |
1482 | nentr = fClusters->GetEntriesFast(); | |
4551ea7c | 1483 | for (i = 0; i < nentr; i++) { |
1484 | delete fClusters->RemoveAt(i); | |
1485 | } | |
b7a0917f | 1486 | fNclusters = 0; |
5443e65e | 1487 | |
1488 | nentr = fSeeds->GetEntriesFast(); | |
4551ea7c | 1489 | for (i = 0; i < nentr; i++) { |
1490 | delete fSeeds->RemoveAt(i); | |
1491 | } | |
5443e65e | 1492 | |
1493 | nentr = fTracks->GetEntriesFast(); | |
4551ea7c | 1494 | for (i = 0; i < nentr; i++) { |
1495 | delete fTracks->RemoveAt(i); | |
1496 | } | |
5443e65e | 1497 | |
1498 | Int_t nsec = AliTRDgeometry::kNsect; | |
5443e65e | 1499 | for (i = 0; i < nsec; i++) { |
1500 | for(Int_t pl = 0; pl < fTrSec[i]->GetNumberOfLayers(); pl++) { | |
1501 | fTrSec[i]->GetLayer(pl)->Clear(); | |
1502 | } | |
1503 | } | |
1504 | ||
1505 | } | |
1506 | ||
75bd7f81 | 1507 | //_____________________________________________________________________________ |
af885e0f | 1508 | void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESDEvent *esd) |
7ad19338 | 1509 | { |
1510 | // | |
1511 | // Creates seeds using clusters between position inner plane and outer plane | |
1512 | // | |
75bd7f81 | 1513 | |
4551ea7c | 1514 | const Double_t kMaxTheta = 1.0; |
1515 | const Double_t kMaxPhi = 2.0; | |
1516 | ||
1517 | const Double_t kRoad0y = 6.0; // Road for middle cluster | |
1518 | const Double_t kRoad0z = 8.5; // Road for middle cluster | |
1519 | ||
1520 | const Double_t kRoad1y = 2.0; // Road in y for seeded cluster | |
1521 | const Double_t kRoad1z = 20.0; // Road in z for seeded cluster | |
1522 | ||
1523 | const Double_t kRoad2y = 3.0; // Road in y for extrapolated cluster | |
1524 | const Double_t kRoad2z = 20.0; // Road in z for extrapolated cluster | |
c6f438c0 | 1525 | const Int_t kMaxSeed = 3000; |
7ad19338 | 1526 | |
4551ea7c | 1527 | Int_t maxSec = AliTRDgeometry::kNsect; |
1528 | ||
1529 | // Linear fitters in planes | |
1530 | TLinearFitter fitterTC(2,"hyp2"); // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const | |
1531 | TLinearFitter fitterT2(4,"hyp4"); // Fitting with tilting pads - kz not fixed | |
69b55c55 | 1532 | fitterTC.StoreData(kTRUE); |
1533 | fitterT2.StoreData(kTRUE); | |
4551ea7c | 1534 | AliRieman rieman(1000); // Rieman fitter |
1535 | AliRieman rieman2(1000); // Rieman fitter | |
1536 | ||
1537 | // Find the maximal and minimal layer for the planes | |
7ad19338 | 1538 | Int_t layers[6][2]; |
4551ea7c | 1539 | AliTRDpropagationLayer *reflayers[6]; |
1540 | for (Int_t i = 0; i < 6; i++) { | |
1541 | layers[i][0] = 10000; | |
1542 | layers[i][1] = 0; | |
1543 | } | |
1544 | for (Int_t ns = 0; ns < maxSec; ns++) { | |
1545 | for (Int_t ilayer = 0; ilayer < fTrSec[ns]->GetNumberOfLayers(); ilayer++) { | |
1546 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(ilayer)); | |
1547 | if (layer == 0) { | |
1548 | continue; | |
1549 | } | |
7ad19338 | 1550 | Int_t det = layer[0]->GetDetector(); |
1551 | Int_t plane = fGeom->GetPlane(det); | |
4551ea7c | 1552 | if (ilayer < layers[plane][0]) { |
1553 | layers[plane][0] = ilayer; | |
1554 | } | |
1555 | if (ilayer > layers[plane][1]) { | |
1556 | layers[plane][1] = ilayer; | |
1557 | } | |
7ad19338 | 1558 | } |
1559 | } | |
4551ea7c | 1560 | |
f162af62 | 1561 | AliTRDpadPlane *padPlane = fGeom->GetPadPlane(0,0); |
6c94f330 | 1562 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
4551ea7c | 1563 | Double_t hL[6]; // Tilting angle |
1564 | Double_t xcl[6]; // X - position of reference cluster | |
1565 | Double_t ycl[6]; // Y - position of reference cluster | |
1566 | Double_t zcl[6]; // Z - position of reference cluster | |
1567 | ||
1568 | AliTRDcluster *cl[6] = { 0, 0, 0, 0, 0, 0 }; // Seeding clusters | |
1569 | Float_t padlength[6] = { 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 }; // Current pad-length | |
1570 | ||
1571 | Double_t chi2R = 0.0; | |
1572 | Double_t chi2Z = 0.0; | |
1573 | Double_t chi2RF = 0.0; | |
1574 | Double_t chi2ZF = 0.0; | |
1575 | ||
1576 | Int_t nclusters; // Total number of clusters | |
1577 | for (Int_t i = 0; i < 6; i++) { | |
1578 | hL[i] = h01; | |
1579 | if (i%2==1) { | |
1580 | hL[i]*=-1.0; | |
1581 | } | |
1582 | } | |
1583 | ||
1584 | // Registered seed | |
c6f438c0 | 1585 | AliTRDseed *pseed = new AliTRDseed[kMaxSeed*6]; |
1586 | AliTRDseed *seed[kMaxSeed]; | |
4551ea7c | 1587 | for (Int_t iseed = 0; iseed < kMaxSeed; iseed++) { |
1588 | seed[iseed]= &pseed[iseed*6]; | |
1589 | } | |
69b55c55 | 1590 | AliTRDseed *cseed = seed[0]; |
4551ea7c | 1591 | |
1592 | Double_t seedquality[kMaxSeed]; | |
1593 | Double_t seedquality2[kMaxSeed]; | |
1594 | Double_t seedparams[kMaxSeed][7]; | |
1595 | Int_t seedlayer[kMaxSeed]; | |
1596 | Int_t registered = 0; | |
1597 | Int_t sort[kMaxSeed]; | |
1598 | ||
1599 | // | |
1600 | // Seeding part | |
1601 | // | |
1602 | for (Int_t ns = 0; ns < maxSec; ns++) { // Loop over sectors | |
1603 | //for (Int_t ns = 0; ns < 5; ns++) { // Loop over sectors | |
1604 | ||
1605 | registered = 0; // Reset registerd seed counter | |
1606 | cseed = seed[registered]; | |
1607 | Float_t iter = 0.0; | |
1608 | ||
1609 | for (Int_t sLayer = 2; sLayer >= 0; sLayer--) { | |
1610 | //for (Int_t dseed = 5; dseed < 15; dseed += 3) { | |
1611 | ||
1612 | iter += 1.0; | |
1613 | Int_t dseed = 5 + Int_t(iter) * 3; | |
1614 | ||
69b55c55 | 1615 | // Initialize seeding layers |
4551ea7c | 1616 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { |
69b55c55 | 1617 | reflayers[ilayer] = fTrSec[ns]->GetLayer(layers[ilayer][1]-dseed); |
1618 | xcl[ilayer] = reflayers[ilayer]->GetX(); | |
4551ea7c | 1619 | } |
1620 | ||
1621 | Double_t xref = (xcl[sLayer+1] + xcl[sLayer+2]) * 0.5; | |
1622 | AliTRDpropagationLayer &layer0 = *reflayers[sLayer+0]; | |
1623 | AliTRDpropagationLayer &layer1 = *reflayers[sLayer+1]; | |
1624 | AliTRDpropagationLayer &layer2 = *reflayers[sLayer+2]; | |
1625 | AliTRDpropagationLayer &layer3 = *reflayers[sLayer+3]; | |
1626 | ||
1627 | Int_t maxn3 = layer3; | |
1628 | for (Int_t icl3 = 0; icl3 < maxn3; icl3++) { | |
33744e5d | 1629 | |
69b55c55 | 1630 | AliTRDcluster *cl3 = layer3[icl3]; |
4551ea7c | 1631 | if (!cl3) { |
1632 | continue; | |
1633 | } | |
1634 | padlength[sLayer+3] = TMath::Sqrt(cl3->GetSigmaZ2() * 12.0); | |
69b55c55 | 1635 | ycl[sLayer+3] = cl3->GetY(); |
1636 | zcl[sLayer+3] = cl3->GetZ(); | |
4551ea7c | 1637 | Float_t yymin0 = ycl[sLayer+3] - 1.0 - kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); |
1638 | Float_t yymax0 = ycl[sLayer+3] + 1.0 + kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); | |
1639 | Int_t maxn0 = layer0; | |
1640 | ||
1641 | for (Int_t icl0 = layer0.Find(yymin0); icl0 < maxn0; icl0++) { | |
1642 | ||
69b55c55 | 1643 | AliTRDcluster *cl0 = layer0[icl0]; |
4551ea7c | 1644 | if (!cl0) { |
1645 | continue; | |
1646 | } | |
1647 | if (cl3->IsUsed() && cl0->IsUsed()) { | |
1648 | continue; | |
1649 | } | |
69b55c55 | 1650 | ycl[sLayer+0] = cl0->GetY(); |
1651 | zcl[sLayer+0] = cl0->GetZ(); | |
4551ea7c | 1652 | if (ycl[sLayer+0] > yymax0) { |
1653 | break; | |
1654 | } | |
1655 | Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1656 | if (TMath::Abs(tanphi) > kMaxPhi) { | |
1657 | continue; | |
1658 | } | |
1659 | Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1660 | if (TMath::Abs(tantheta) > kMaxTheta) { | |
1661 | continue; | |
1662 | } | |
1663 | padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2() * 12.0); | |
1664 | ||
1665 | // Expected position in 1 layer | |
1666 | Double_t y1exp = ycl[sLayer+0] + (tanphi) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1667 | Double_t z1exp = zcl[sLayer+0] + (tantheta) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1668 | Float_t yymin1 = y1exp - kRoad0y - tanphi; | |
1669 | Float_t yymax1 = y1exp + kRoad0y + tanphi; | |
1670 | Int_t maxn1 = layer1; | |
1671 | ||
1672 | for (Int_t icl1 = layer1.Find(yymin1); icl1 < maxn1; icl1++) { | |
1673 | ||
69b55c55 | 1674 | AliTRDcluster *cl1 = layer1[icl1]; |
4551ea7c | 1675 | if (!cl1) { |
1676 | continue; | |
1677 | } | |
69b55c55 | 1678 | Int_t nusedCl = 0; |
1679 | if (cl3->IsUsed()) nusedCl++; | |
1680 | if (cl0->IsUsed()) nusedCl++; | |
1681 | if (cl1->IsUsed()) nusedCl++; | |
4551ea7c | 1682 | if (nusedCl > 1) { |
1683 | continue; | |
1684 | } | |
69b55c55 | 1685 | ycl[sLayer+1] = cl1->GetY(); |
1686 | zcl[sLayer+1] = cl1->GetZ(); | |
4551ea7c | 1687 | if (ycl[sLayer+1] > yymax1) { |
1688 | break; | |
1689 | } | |
1690 | if (TMath::Abs(ycl[sLayer+1]-y1exp) > kRoad0y+tanphi) { | |
1691 | continue; | |
1692 | } | |
1693 | if (TMath::Abs(zcl[sLayer+1]-z1exp) > kRoad0z) { | |
1694 | continue; | |
1695 | } | |
1696 | padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2() * 12.0); | |
1697 | ||
1698 | Double_t y2exp = ycl[sLayer+0]+(tanphi) * (xcl[sLayer+2]-xcl[sLayer+0]) + (ycl[sLayer+1]-y1exp); | |
1699 | Double_t z2exp = zcl[sLayer+0]+(tantheta) * (xcl[sLayer+2]-xcl[sLayer+0]); | |
1700 | Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y,kRoad1z); | |
1701 | if (index2 <= 0) { | |
1702 | continue; | |
1703 | } | |
1704 | AliTRDcluster *cl2 = (AliTRDcluster *) GetCluster(index2); | |
1705 | padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2() * 12.0); | |
1706 | ycl[sLayer+2] = cl2->GetY(); | |
1707 | zcl[sLayer+2] = cl2->GetZ(); | |
1708 | if (TMath::Abs(cl2->GetZ()-z2exp) > kRoad0z) { | |
1709 | continue; | |
1710 | } | |
1711 | ||
69b55c55 | 1712 | rieman.Reset(); |
1713 | rieman.AddPoint(xcl[sLayer+0],ycl[sLayer+0],zcl[sLayer+0],1,10); | |
1714 | rieman.AddPoint(xcl[sLayer+1],ycl[sLayer+1],zcl[sLayer+1],1,10); | |
1715 | rieman.AddPoint(xcl[sLayer+3],ycl[sLayer+3],zcl[sLayer+3],1,10); | |
1716 | rieman.AddPoint(xcl[sLayer+2],ycl[sLayer+2],zcl[sLayer+2],1,10); | |
1717 | rieman.Update(); | |
4551ea7c | 1718 | |
1719 | // Reset fitter | |
1720 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
69b55c55 | 1721 | cseed[iLayer].Reset(); |
1722 | } | |
4551ea7c | 1723 | chi2Z = 0.0; |
1724 | chi2R = 0.0; | |
1725 | ||
1726 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1727 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); |
1728 | chi2Z += (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]) | |
1729 | * (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]); | |
1730 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
1731 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); | |
1732 | chi2R += (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]) | |
1733 | * (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]); | |
1734 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
69b55c55 | 1735 | } |
4551ea7c | 1736 | if (TMath::Sqrt(chi2R) > 1.0/iter) { |
1737 | continue; | |
1738 | } | |
1739 | if (TMath::Sqrt(chi2Z) > 7.0/iter) { | |
1740 | continue; | |
69b55c55 | 1741 | } |
4551ea7c | 1742 | |
1743 | Float_t minmax[2] = { -100.0, 100.0 }; | |
1744 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1745 | Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1746 | + 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1747 | if (max < minmax[1]) { |
1748 | minmax[1] = max; | |
1749 | } | |
1750 | Float_t min = zcl[sLayer+iLayer]-padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1751 | - 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1752 | if (min > minmax[0]) { |
1753 | minmax[0] = min; | |
1754 | } | |
1755 | } | |
1756 | ||
69b55c55 | 1757 | Bool_t isFake = kFALSE; |
4551ea7c | 1758 | if (cl0->GetLabel(0) != cl3->GetLabel(0)) { |
1759 | isFake = kTRUE; | |
1760 | } | |
1761 | if (cl1->GetLabel(0) != cl3->GetLabel(0)) { | |
1762 | isFake = kTRUE; | |
1763 | } | |
1764 | if (cl2->GetLabel(0) != cl3->GetLabel(0)) { | |
1765 | isFake = kTRUE; | |
1766 | } | |
1767 | ||
1768 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
1769 | if ((!isFake) || ((icl3%10) == 0)) { // Debugging print | |
1770 | TTreeSRedirector &cstream = *fDebugStreamer; | |
1771 | cstream << "Seeds0" | |
1772 | << "isFake=" << isFake | |
1773 | << "Cl0.=" << cl0 | |
1774 | << "Cl1.=" << cl1 | |
1775 | << "Cl2.=" << cl2 | |
1776 | << "Cl3.=" << cl3 | |
1777 | << "Xref=" << xref | |
1778 | << "X0=" << xcl[sLayer+0] | |
1779 | << "X1=" << xcl[sLayer+1] | |
1780 | << "X2=" << xcl[sLayer+2] | |
1781 | << "X3=" << xcl[sLayer+3] | |
1782 | << "Y2exp=" << y2exp | |
1783 | << "Z2exp=" << z2exp | |
1784 | << "Chi2R=" << chi2R | |
1785 | << "Chi2Z=" << chi2Z | |
1786 | << "Seed0.=" << &cseed[sLayer+0] | |
1787 | << "Seed1.=" << &cseed[sLayer+1] | |
1788 | << "Seed2.=" << &cseed[sLayer+2] | |
1789 | << "Seed3.=" << &cseed[sLayer+3] | |
1790 | << "Zmin=" << minmax[0] | |
1791 | << "Zmax=" << minmax[1] | |
1792 | << "\n"; | |
d337ef8d | 1793 | } |
69b55c55 | 1794 | } |
33744e5d | 1795 | |
4551ea7c | 1796 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1797 | // |
4551ea7c | 1798 | // Fit seeding part |
33744e5d | 1799 | // |
4551ea7c | 1800 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1801 | |
69b55c55 | 1802 | cl[sLayer+0] = cl0; |
1803 | cl[sLayer+1] = cl1; | |
1804 | cl[sLayer+2] = cl2; | |
1805 | cl[sLayer+3] = cl3; | |
4551ea7c | 1806 | Bool_t isOK = kTRUE; |
1807 | ||
1808 | for (Int_t jLayer = 0; jLayer < 4; jLayer++) { | |
1809 | ||
ca1e1e5b | 1810 | cseed[sLayer+jLayer].SetTilt(hL[sLayer+jLayer]); |
1811 | cseed[sLayer+jLayer].SetPadLength(padlength[sLayer+jLayer]); | |
1812 | cseed[sLayer+jLayer].SetX0(xcl[sLayer+jLayer]); | |
4551ea7c | 1813 | |
1814 | for (Int_t iter = 0; iter < 2; iter++) { | |
1815 | ||
69b55c55 | 1816 | // |
4551ea7c | 1817 | // In iteration 0 we try only one pad-row |
1818 | // If quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows | |
69b55c55 | 1819 | // |
1820 | AliTRDseed tseed = cseed[sLayer+jLayer]; | |
4551ea7c | 1821 | Float_t roadz = padlength[sLayer+jLayer] * 0.5; |
1822 | if (iter > 0) { | |
1823 | roadz = padlength[sLayer+jLayer]; | |
1824 | } | |
1825 | ||
1826 | Float_t quality = 10000.0; | |
1827 | ||
1828 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
1829 | ||
1830 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime)); | |
1831 | Double_t dxlayer = layer.GetX() - xcl[sLayer+jLayer]; | |
1832 | Double_t zexp = cl[sLayer+jLayer]->GetZ(); | |
1833 | ||
1834 | if (iter > 0) { | |
1835 | // Try 2 pad-rows in second iteration | |
ca1e1e5b | 1836 | zexp = tseed.GetZref(0) + tseed.GetZref(1) * dxlayer; |
4551ea7c | 1837 | if (zexp > cl[sLayer+jLayer]->GetZ()) { |
1838 | zexp = cl[sLayer+jLayer]->GetZ() + padlength[sLayer+jLayer]*0.5; | |
1839 | } | |
1840 | if (zexp < cl[sLayer+jLayer]->GetZ()) { | |
1841 | zexp = cl[sLayer+jLayer]->GetZ() - padlength[sLayer+jLayer]*0.5; | |
1842 | } | |
69b55c55 | 1843 | } |
4551ea7c | 1844 | |
ca1e1e5b | 1845 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 1846 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
1847 | if (index <= 0) { | |
1848 | continue; | |
1849 | } | |
1850 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
1851 | ||
ca1e1e5b | 1852 | tseed.SetIndexes(iTime,index); |
1853 | tseed.SetClusters(iTime,cl); // Register cluster | |
1854 | tseed.SetX(iTime,dxlayer); // Register cluster | |
1855 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
1856 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 1857 | |
1858 | } | |
1859 | ||
69b55c55 | 1860 | tseed.Update(); |
4551ea7c | 1861 | |
1862 | // Count the number of clusters and distortions into quality | |
ca1e1e5b | 1863 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
1864 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
1865 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
1866 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 1867 | if ((iter == 0) && tseed.IsOK()) { |
1868 | cseed[sLayer+jLayer] = tseed; | |
1869 | quality = tquality; | |
1870 | if (tquality < 5) { | |
1871 | break; | |
1872 | } | |
1873 | } | |
1874 | if (tseed.IsOK() && (tquality < quality)) { | |
69b55c55 | 1875 | cseed[sLayer+jLayer] = tseed; |
69b55c55 | 1876 | } |
4551ea7c | 1877 | |
1878 | } // Loop: iter | |
1879 | ||
1880 | if (!cseed[sLayer+jLayer].IsOK()) { | |
69b55c55 | 1881 | isOK = kFALSE; |
1882 | break; | |
4551ea7c | 1883 | } |
1884 | ||
69b55c55 | 1885 | cseed[sLayer+jLayer].CookLabels(); |
1886 | cseed[sLayer+jLayer].UpdateUsed(); | |
ca1e1e5b | 1887 | nusedCl += cseed[sLayer+jLayer].GetNUsed(); |
4551ea7c | 1888 | if (nusedCl > 25) { |
69b55c55 | 1889 | isOK = kFALSE; |
1890 | break; | |
4551ea7c | 1891 | } |
1892 | ||
1893 | } // Loop: jLayer | |
1894 | ||
1895 | if (!isOK) { | |
1896 | continue; | |
69b55c55 | 1897 | } |
4551ea7c | 1898 | nclusters = 0; |
1899 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1900 | if (cseed[sLayer+iLayer].IsOK()) { | |
ca1e1e5b | 1901 | nclusters += cseed[sLayer+iLayer].GetN2(); |
69b55c55 | 1902 | } |
1903 | } | |
4551ea7c | 1904 | |
1905 | // Iteration 0 | |
69b55c55 | 1906 | rieman.Reset(); |
4551ea7c | 1907 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { |
1908 | rieman.AddPoint(xcl[sLayer+iLayer] | |
ca1e1e5b | 1909 | ,cseed[sLayer+iLayer].GetYfitR(0) |
1910 | ,cseed[sLayer+iLayer].GetZProb() | |
4551ea7c | 1911 | ,1 |
1912 | ,10); | |
69b55c55 | 1913 | } |
1914 | rieman.Update(); | |
4551ea7c | 1915 | |
1916 | chi2R = 0.0; | |
1917 | chi2Z = 0.0; | |
1918 | ||
1919 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1920 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); |
1921 | chi2R += (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)) | |
1922 | * (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)); | |
1923 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
1924 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); | |
1925 | chi2Z += (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()) | |
1926 | * (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()); | |
1927 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
69b55c55 | 1928 | } |
1929 | Double_t curv = rieman.GetC(); | |
4551ea7c | 1930 | |
69b55c55 | 1931 | // |
4551ea7c | 1932 | // Likelihoods |
6c94f330 | 1933 | // |
ca1e1e5b | 1934 | Double_t sumda = TMath::Abs(cseed[sLayer+0].GetYfitR(1) - cseed[sLayer+0].GetYref(1)) |
1935 | + TMath::Abs(cseed[sLayer+1].GetYfitR(1) - cseed[sLayer+1].GetYref(1)) | |
1936 | + TMath::Abs(cseed[sLayer+2].GetYfitR(1) - cseed[sLayer+2].GetYref(1)) | |
1937 | + TMath::Abs(cseed[sLayer+3].GetYfitR(1) - cseed[sLayer+3].GetYref(1)); | |
4551ea7c | 1938 | Double_t likea = TMath::Exp(-sumda*10.6); |
1939 | Double_t likechi2 = 0.0000000001; | |
1940 | if (chi2R < 0.5) { | |
1941 | likechi2 += TMath::Exp(-TMath::Sqrt(chi2R) * 7.73); | |
1942 | } | |
1943 | Double_t likechi2z = TMath::Exp(-chi2Z * 0.088) / TMath::Exp(-chi2Z * 0.019); | |
1944 | Double_t likeN = TMath::Exp(-(72 - nclusters) * 0.19); | |
1945 | Double_t like = likea * likechi2 * likechi2z * likeN; | |
ca1e1e5b | 1946 | Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetYref(1) - 130.0*curv) * 1.9); |
1947 | Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetZref(1) | |
1948 | - cseed[sLayer+0].GetZref(0) / xcl[sLayer+0]) * 5.9); | |
6c94f330 | 1949 | Double_t likePrim = TMath::Max(likePrimY*likePrimZ,0.0005); |
69b55c55 | 1950 | |
4551ea7c | 1951 | seedquality[registered] = like; |
1952 | seedlayer[registered] = sLayer; | |
1953 | if (TMath::Log(0.000000000000001 + like) < -15) { | |
1954 | continue; | |
1955 | } | |
69b55c55 | 1956 | AliTRDseed seedb[6]; |
4551ea7c | 1957 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
69b55c55 | 1958 | seedb[iLayer] = cseed[iLayer]; |
1959 | } | |
4551ea7c | 1960 | |
1961 | //////////////////////////////////////////////////////////////////////////////////// | |
ad670fba | 1962 | // |
4551ea7c | 1963 | // Full track fit part |
33744e5d | 1964 | // |
4551ea7c | 1965 | //////////////////////////////////////////////////////////////////////////////////// |
1966 | ||
1967 | Int_t nlayers = 0; | |
1968 | Int_t nusedf = 0; | |
1969 | Int_t findable = 0; | |
1970 | ||
69b55c55 | 1971 | // |
4551ea7c | 1972 | // Add new layers - avoid long extrapolation |
69b55c55 | 1973 | // |
4551ea7c | 1974 | Int_t tLayer[2] = { 0, 0 }; |
1975 | if (sLayer == 2) { | |
1976 | tLayer[0] = 1; | |
1977 | tLayer[1] = 0; | |
1978 | } | |
1979 | if (sLayer == 1) { | |
1980 | tLayer[0] = 5; | |
1981 | tLayer[1] = 0; | |
1982 | } | |
1983 | if (sLayer == 0) { | |
1984 | tLayer[0] = 4; | |
1985 | tLayer[1] = 5; | |
1986 | } | |
1987 | ||
1988 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
1989 | Int_t jLayer = tLayer[iLayer]; // Set tracking layer | |
69b55c55 | 1990 | cseed[jLayer].Reset(); |
ca1e1e5b | 1991 | cseed[jLayer].SetTilt(hL[jLayer]); |
1992 | cseed[jLayer].SetPadLength(padlength[jLayer]); | |
1993 | cseed[jLayer].SetX0(xcl[jLayer]); | |
4551ea7c | 1994 | // Get pad length and rough cluster |
ca1e1e5b | 1995 | Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].GetYref(0) |
1996 | ,cseed[jLayer].GetZref(0) | |
4551ea7c | 1997 | ,kRoad2y |
1998 | ,kRoad2z); | |
1999 | if (indexdummy <= 0) { | |
2000 | continue; | |
2001 | } | |
2002 | AliTRDcluster *cldummy = (AliTRDcluster *) GetCluster(indexdummy); | |
2003 | padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2() * 12.0); | |
69b55c55 | 2004 | } |
4551ea7c | 2005 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
2006 | ||
2007 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
2008 | ||
2009 | Int_t jLayer = tLayer[iLayer]; // set tracking layer | |
2010 | if ((jLayer == 0) && !(cseed[1].IsOK())) { | |
2011 | continue; // break not allowed | |
2012 | } | |
2013 | if ((jLayer == 5) && !(cseed[4].IsOK())) { | |
2014 | continue; // break not allowed | |
2015 | } | |
ca1e1e5b | 2016 | Float_t zexp = cseed[jLayer].GetZref(0); |
4551ea7c | 2017 | Double_t zroad = padlength[jLayer] * 0.5 + 1.0; |
2018 | ||
2019 | for (Int_t iter = 0; iter < 2; iter++) { | |
2020 | ||
69b55c55 | 2021 | AliTRDseed tseed = cseed[jLayer]; |
4551ea7c | 2022 | Float_t quality = 10000.0; |
2023 | ||
2024 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
2025 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime)); | |
2026 | Double_t dxlayer = layer.GetX()-xcl[jLayer]; | |
ca1e1e5b | 2027 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 2028 | Float_t yroad = kRoad1y; |
2029 | Int_t index = layer.FindNearestCluster(yexp,zexp,yroad,zroad); | |
2030 | if (index <= 0) { | |
2031 | continue; | |
2032 | } | |
2033 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
ca1e1e5b | 2034 | tseed.SetIndexes(iTime,index); |
2035 | tseed.SetClusters(iTime,cl); // Register cluster | |
2036 | tseed.SetX(iTime,dxlayer); // Register cluster | |
2037 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
2038 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 2039 | } |
2040 | ||
69b55c55 | 2041 | tseed.Update(); |
4551ea7c | 2042 | if (tseed.IsOK()) { |
ca1e1e5b | 2043 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
2044 | Float_t tquality = (18.0 - tseed.GetN2())/2.0 + TMath::Abs(dangle) / 0.1 | |
2045 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
2046 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2047 | if (tquality < quality) { |
2048 | cseed[jLayer] = tseed; | |
2049 | quality = tquality; | |
69b55c55 | 2050 | } |
2051 | } | |
4551ea7c | 2052 | |
2053 | zroad *= 2.0; | |
2054 | ||
2055 | } // Loop: iter | |
2056 | ||
2057 | if ( cseed[jLayer].IsOK()) { | |
69b55c55 | 2058 | cseed[jLayer].CookLabels(); |
2059 | cseed[jLayer].UpdateUsed(); | |
ca1e1e5b | 2060 | nusedf += cseed[jLayer].GetNUsed(); |
4551ea7c | 2061 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
69b55c55 | 2062 | } |
4551ea7c | 2063 | |
2064 | } // Loop: iLayer | |
2065 | ||
2066 | // Make copy | |
69b55c55 | 2067 | AliTRDseed bseed[6]; |
4551ea7c | 2068 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { |
69b55c55 | 2069 | bseed[jLayer] = cseed[jLayer]; |
4551ea7c | 2070 | } |
2071 | Float_t lastquality = 10000.0; | |
2072 | Float_t lastchi2 = 10000.0; | |
2073 | Float_t chi2 = 1000.0; | |
2074 | ||
2075 | for (Int_t iter = 0; iter < 4; iter++) { | |
2076 | ||
2077 | // Sort tracklets according "quality", try to "improve" 4 worst | |
2078 | Float_t sumquality = 0.0; | |
69b55c55 | 2079 | Float_t squality[6]; |
2080 | Int_t sortindexes[6]; | |
4551ea7c | 2081 | |
2082 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2083 | if (bseed[jLayer].IsOK()) { | |
69b55c55 | 2084 | AliTRDseed &tseed = bseed[jLayer]; |
ca1e1e5b | 2085 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); |
2086 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); | |
2087 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
2088 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
2089 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2090 | squality[jLayer] = tquality; |
2091 | } | |
2092 | else { | |
2093 | squality[jLayer] = -1.0; | |
ad670fba | 2094 | } |
6c94f330 | 2095 | sumquality +=squality[jLayer]; |
69b55c55 | 2096 | } |
2097 | ||
4551ea7c | 2098 | if ((sumquality >= lastquality) || |
2099 | (chi2 > lastchi2)) { | |
2100 | break; | |
2101 | } | |
69b55c55 | 2102 | lastquality = sumquality; |
2103 | lastchi2 = chi2; | |
4551ea7c | 2104 | if (iter > 0) { |
2105 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
69b55c55 | 2106 | cseed[jLayer] = bseed[jLayer]; |
2107 | } | |
2108 | } | |
2109 | TMath::Sort(6,squality,sortindexes,kFALSE); | |
4551ea7c | 2110 | |
2111 | for (Int_t jLayer = 5; jLayer > 1; jLayer--) { | |
2112 | ||
6c94f330 | 2113 | Int_t bLayer = sortindexes[jLayer]; |
2114 | AliTRDseed tseed = bseed[bLayer]; | |
4551ea7c | 2115 | |
2116 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
2117 | ||
2118 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime)); | |
2119 | Double_t dxlayer = layer.GetX() - xcl[bLayer]; | |
ca1e1e5b | 2120 | Double_t zexp = tseed.GetZref(0); |
2121 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
4551ea7c | 2122 | Float_t roadz = padlength[bLayer] + 1; |
ca1e1e5b | 2123 | if (TMath::Abs(tseed.GetZProb() - zexp) > 0.5*padlength[bLayer]) { |
4551ea7c | 2124 | roadz = padlength[bLayer] * 0.5; |
2125 | } | |
ca1e1e5b | 2126 | if (tseed.GetZfit(1)*tseed.GetZref(1) < 0.0) { |
4551ea7c | 2127 | roadz = padlength[bLayer] * 0.5; |
2128 | } | |
ca1e1e5b | 2129 | if (TMath::Abs(tseed.GetZProb() - zexp) < 0.1*padlength[bLayer]) { |
2130 | zexp = tseed.GetZProb(); | |
4551ea7c | 2131 | roadz = padlength[bLayer] * 0.5; |
2132 | } | |
2133 | ||
ca1e1e5b | 2134 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer - zcor; |
4551ea7c | 2135 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
2136 | if (index <= 0) { | |
2137 | continue; | |
69b55c55 | 2138 | } |
4551ea7c | 2139 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); |
2140 | ||
ca1e1e5b | 2141 | tseed.SetIndexes(iTime,index); |
2142 | tseed.SetClusters(iTime,cl); // Register cluster | |
2143 | tseed.SetX(iTime,dxlayer); // Register cluster | |
2144 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
2145 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 2146 | |
2147 | } | |
2148 | ||
69b55c55 | 2149 | tseed.Update(); |
c6f438c0 | 2150 | if (tseed.IsOK()) { |
ca1e1e5b | 2151 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
2152 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
2153 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 | |
2154 | + TMath::Abs(dangle) / 0.1 | |
2155 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
2156 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2157 | if (tquality<squality[bLayer]) { |
69b55c55 | 2158 | bseed[bLayer] = tseed; |
4551ea7c | 2159 | } |
69b55c55 | 2160 | } |
4551ea7c | 2161 | |
2162 | } // Loop: jLayer | |
2163 | ||
2164 | chi2 = AliTRDseed::FitRiemanTilt(bseed,kTRUE); | |
2165 | ||
2166 | } // Loop: iter | |
2167 | ||
2168 | nclusters = 0; | |
2169 | nlayers = 0; | |
2170 | findable = 0; | |
2171 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2172 | if (TMath::Abs(cseed[iLayer].GetYref(0) / cseed[iLayer].GetX0()) < 0.15) { |
69b55c55 | 2173 | findable++; |
4551ea7c | 2174 | } |
2175 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2176 | nclusters += cseed[iLayer].GetN2(); |
69b55c55 | 2177 | nlayers++; |
2178 | } | |
2179 | } | |
4551ea7c | 2180 | if (nlayers < 3) { |
2181 | continue; | |
2182 | } | |
69b55c55 | 2183 | rieman.Reset(); |
4551ea7c | 2184 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
2185 | if (cseed[iLayer].IsOK()) { | |
2186 | rieman.AddPoint(xcl[iLayer] | |
ca1e1e5b | 2187 | ,cseed[iLayer].GetYfitR(0) |
2188 | ,cseed[iLayer].GetZProb() | |
4551ea7c | 2189 | ,1 |
2190 | ,10); | |
2191 | } | |
69b55c55 | 2192 | } |
2193 | rieman.Update(); | |
4551ea7c | 2194 | |
2195 | chi2RF = 0.0; | |
2196 | chi2ZF = 0.0; | |
2197 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2198 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2199 | cseed[iLayer].SetYref(0,rieman.GetYat(xcl[iLayer])); |
2200 | chi2RF += (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)) | |
2201 | * (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)); | |
2202 | cseed[iLayer].SetYref(1,rieman.GetDYat(xcl[iLayer])); | |
2203 | cseed[iLayer].SetZref(0,rieman.GetZat(xcl[iLayer])); | |
2204 | chi2ZF += (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()) | |
2205 | * (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()); | |
2206 | cseed[iLayer].SetZref(1,rieman.GetDZat(xcl[iLayer])); | |
69b55c55 | 2207 | } |
2208 | } | |
4551ea7c | 2209 | chi2RF /= TMath::Max((nlayers - 3.0),1.0); |
2210 | chi2ZF /= TMath::Max((nlayers - 3.0),1.0); | |
2211 | curv = rieman.GetC(); | |
2212 | ||
2213 | Double_t xref2 = (xcl[2] + xcl[3]) * 0.5; // Middle of the chamber | |
2214 | Double_t dzmf = rieman.GetDZat(xref2); | |
2215 | Double_t zmf = rieman.GetZat(xref2); | |
69b55c55 | 2216 | |
69b55c55 | 2217 | // |
4551ea7c | 2218 | // Fit hyperplane |
69b55c55 | 2219 | // |
4551ea7c | 2220 | Int_t npointsT = 0; |
69b55c55 | 2221 | fitterTC.ClearPoints(); |
2222 | fitterT2.ClearPoints(); | |
2223 | rieman2.Reset(); | |
4551ea7c | 2224 | |
2225 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2226 | ||
2227 | if (!cseed[iLayer].IsOK()) { | |
2228 | continue; | |
2229 | } | |
2230 | ||
2231 | for (Int_t itime = 0; itime < 25; itime++) { | |
2232 | ||
ca1e1e5b | 2233 | if (!cseed[iLayer].IsUsable(itime)) { |
4551ea7c | 2234 | continue; |
2235 | } | |
2236 | // X relative to the middle chamber | |
ca1e1e5b | 2237 | Double_t x = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0() - xref2; |
2238 | Double_t y = cseed[iLayer].GetY(itime); | |
2239 | Double_t z = cseed[iLayer].GetZ(itime); | |
69b55c55 | 2240 | // ExB correction to the correction |
4551ea7c | 2241 | // Tilted rieman |
69b55c55 | 2242 | Double_t uvt[6]; |
4551ea7c | 2243 | // Global x |
ca1e1e5b | 2244 | Double_t x2 = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0(); |
4551ea7c | 2245 | Double_t t = 1.0 / (x2*x2 + y*y); |
2246 | uvt[1] = t; // t | |
2247 | uvt[0] = 2.0 * x2 * uvt[1]; // u | |
2248 | uvt[2] = 2.0 * hL[iLayer] * uvt[1]; | |
2249 | uvt[3] = 2.0 * hL[iLayer] * x * uvt[1]; | |
2250 | uvt[4] = 2.0 * (y + hL[iLayer]*z) * uvt[1]; | |
2251 | Double_t error = 2.0 * 0.2 * uvt[1]; | |
69b55c55 | 2252 | fitterT2.AddPoint(uvt,uvt[4],error); |
4551ea7c | 2253 | |
69b55c55 | 2254 | // |
4551ea7c | 2255 | // Constrained rieman |
69b55c55 | 2256 | // |
ca1e1e5b | 2257 | z = cseed[iLayer].GetZ(itime); |
4551ea7c | 2258 | uvt[0] = 2.0 * x2 * t; // u |
2259 | uvt[1] = 2.0 * hL[iLayer] * x2 * uvt[1]; | |
2260 | uvt[2] = 2.0 * (y + hL[iLayer] * (z - GetZ())) * t; | |
69b55c55 | 2261 | fitterTC.AddPoint(uvt,uvt[2],error); |
69b55c55 | 2262 | rieman2.AddPoint(x2,y,z,1,10); |
2263 | npointsT++; | |
4551ea7c | 2264 | |
69b55c55 | 2265 | } |
4551ea7c | 2266 | |
2267 | } // Loop: iLayer | |
2268 | ||
69b55c55 | 2269 | rieman2.Update(); |
2270 | fitterTC.Eval(); | |
2271 | fitterT2.Eval(); | |
2272 | Double_t rpolz0 = fitterT2.GetParameter(3); | |
2273 | Double_t rpolz1 = fitterT2.GetParameter(4); | |
4551ea7c | 2274 | |
69b55c55 | 2275 | // |
4551ea7c | 2276 | // Linear fitter - not possible to make boundaries |
2277 | // Do not accept non possible z and dzdx combinations | |
69b55c55 | 2278 | // |
4551ea7c | 2279 | Bool_t acceptablez = kTRUE; |
2280 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2281 | if (cseed[iLayer].IsOK()) { | |
2282 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2283 | if (TMath::Abs(cseed[iLayer].GetZProb() - zT2) > padlength[iLayer] * 0.5 + 1.0) { |
69b55c55 | 2284 | acceptablez = kFALSE; |
4551ea7c | 2285 | } |
69b55c55 | 2286 | } |
2287 | } | |
4551ea7c | 2288 | if (!acceptablez) { |
69b55c55 | 2289 | fitterT2.FixParameter(3,zmf); |
2290 | fitterT2.FixParameter(4,dzmf); | |
2291 | fitterT2.Eval(); | |
2292 | fitterT2.ReleaseParameter(3); | |
2293 | fitterT2.ReleaseParameter(4); | |
2294 | rpolz0 = fitterT2.GetParameter(3); | |
2295 | rpolz1 = fitterT2.GetParameter(4); | |
2296 | } | |
4551ea7c | 2297 | |
2298 | Double_t chi2TR = fitterT2.GetChisquare() / Float_t(npointsT); | |
2299 | Double_t chi2TC = fitterTC.GetChisquare() / Float_t(npointsT); | |
69b55c55 | 2300 | Double_t polz1c = fitterTC.GetParameter(2); |
4551ea7c | 2301 | Double_t polz0c = polz1c * xref2; |
6c94f330 | 2302 | Double_t aC = fitterTC.GetParameter(0); |
2303 | Double_t bC = fitterTC.GetParameter(1); | |
4551ea7c | 2304 | Double_t cC = aC / TMath::Sqrt(bC * bC + 1.0); // Curvature |
6c94f330 | 2305 | Double_t aR = fitterT2.GetParameter(0); |
2306 | Double_t bR = fitterT2.GetParameter(1); | |
2307 | Double_t dR = fitterT2.GetParameter(2); | |
4551ea7c | 2308 | Double_t cR = 1.0 + bR*bR - dR*aR; |
2309 | Double_t dca = 0.0; | |
2310 | if (cR > 0.0) { | |
2311 | dca = -dR / (TMath::Sqrt(1.0 + bR*bR - dR*aR) + TMath::Sqrt(1.0 + bR*bR)); | |
2312 | cR = aR / TMath::Sqrt(cR); | |
69b55c55 | 2313 | } |
4551ea7c | 2314 | |
2315 | Double_t chi2ZT2 = 0.0; | |
2316 | Double_t chi2ZTC = 0.0; | |
2317 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2318 | if (cseed[iLayer].IsOK()) { | |
2319 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
2320 | Double_t zTC = polz0c + polz1c * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2321 | chi2ZT2 += TMath::Abs(cseed[iLayer].GetMeanz() - zT2); |
2322 | chi2ZTC += TMath::Abs(cseed[iLayer].GetMeanz() - zTC); | |
69b55c55 | 2323 | } |
2324 | } | |
4551ea7c | 2325 | chi2ZT2 /= TMath::Max((nlayers - 3.0),1.0); |
2326 | chi2ZTC /= TMath::Max((nlayers - 3.0),1.0); | |
2327 | ||
2328 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); | |
2329 | Float_t sumdaf = 0.0; | |
2330 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2331 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2332 | sumdaf += TMath::Abs((cseed[iLayer].GetYfit(1) - cseed[iLayer].GetYref(1)) |
2333 | / cseed[iLayer].GetSigmaY2()); | |
4551ea7c | 2334 | } |
2335 | } | |
2336 | sumdaf /= Float_t (nlayers - 2.0); | |
2337 | ||
69b55c55 | 2338 | // |
4551ea7c | 2339 | // Likelihoods for full track |
69b55c55 | 2340 | // |
4551ea7c | 2341 | Double_t likezf = TMath::Exp(-chi2ZF * 0.14); |
2342 | Double_t likechi2C = TMath::Exp(-chi2TC * 0.677); | |
2343 | Double_t likechi2TR = TMath::Exp(-chi2TR * 0.78); | |
2344 | Double_t likeaf = TMath::Exp(-sumdaf * 3.23); | |
2345 | seedquality2[registered] = likezf * likechi2TR * likeaf; | |
33744e5d | 2346 | |
4551ea7c | 2347 | // Still needed ???? |
69b55c55 | 2348 | // Bool_t isGold = kFALSE; |
2349 | // | |
6c94f330 | 2350 | // if (nlayers == 6 && TMath::Log(0.000000001+seedquality2[index])<-5.) isGold =kTRUE; // gold |
2351 | // if (nlayers == findable && TMath::Log(0.000000001+seedquality2[index])<-4.) isGold =kTRUE; // gold | |
69b55c55 | 2352 | // if (isGold &&nusedf<10){ |
2353 | // for (Int_t jLayer=0;jLayer<6;jLayer++){ | |
6c94f330 | 2354 | // if ( seed[index][jLayer].IsOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1) |
69b55c55 | 2355 | // seed[index][jLayer].UseClusters(); //sign gold |
2356 | // } | |
2357 | // } | |
4551ea7c | 2358 | |
2359 | Int_t index0 = 0; | |
2360 | if (!cseed[0].IsOK()) { | |
69b55c55 | 2361 | index0 = 1; |
4551ea7c | 2362 | if (!cseed[1].IsOK()) { |
2363 | index0 = 2; | |
2364 | } | |
69b55c55 | 2365 | } |
ca1e1e5b | 2366 | seedparams[registered][0] = cseed[index0].GetX0(); |
2367 | seedparams[registered][1] = cseed[index0].GetYref(0); | |
2368 | seedparams[registered][2] = cseed[index0].GetZref(0); | |
c6f438c0 | 2369 | seedparams[registered][5] = cR; |
ca1e1e5b | 2370 | seedparams[registered][3] = cseed[index0].GetX0() * cR - TMath::Sin(TMath::ATan(cseed[0].GetYref(1))); |
2371 | seedparams[registered][4] = cseed[index0].GetZref(1) | |
2372 | / TMath::Sqrt(1.0 + cseed[index0].GetYref(1) * cseed[index0].GetYref(1)); | |
69b55c55 | 2373 | seedparams[registered][6] = ns; |
4551ea7c | 2374 | |
2375 | Int_t labels[12]; | |
2376 | Int_t outlab[24]; | |
2377 | Int_t nlab = 0; | |
2378 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2379 | if (!cseed[iLayer].IsOK()) { | |
2380 | continue; | |
2381 | } | |
ca1e1e5b | 2382 | if (cseed[iLayer].GetLabels(0) >= 0) { |
2383 | labels[nlab] = cseed[iLayer].GetLabels(0); | |
69b55c55 | 2384 | nlab++; |
2385 | } | |
ca1e1e5b | 2386 | if (cseed[iLayer].GetLabels(1) >= 0) { |
2387 | labels[nlab] = cseed[iLayer].GetLabels(1); | |
69b55c55 | 2388 | nlab++; |
4551ea7c | 2389 | } |
69b55c55 | 2390 | } |
2391 | Freq(nlab,labels,outlab,kFALSE); | |
4551ea7c | 2392 | Int_t label = outlab[0]; |
2393 | Int_t frequency = outlab[1]; | |
2394 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2395 | cseed[iLayer].SetFreq(frequency); |
2396 | cseed[iLayer].SetC(cR); | |
2397 | cseed[iLayer].SetCC(cC); | |
2398 | cseed[iLayer].SetChi2(chi2TR); | |
2399 | cseed[iLayer].SetChi2Z(chi2ZF); | |
69b55c55 | 2400 | } |
33744e5d | 2401 | |
2402 | // Debugging print | |
4551ea7c | 2403 | if (1 || (!isFake)) { |
69b55c55 | 2404 | Float_t zvertex = GetZ(); |
4551ea7c | 2405 | TTreeSRedirector &cstream = *fDebugStreamer; |
2406 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2407 | cstream << "Seeds1" | |
2408 | << "isFake=" << isFake | |
2409 | << "Vertex=" << zvertex | |
2410 | << "Rieman2.=" << &rieman2 | |
2411 | << "Rieman.=" << &rieman | |
2412 | << "Xref=" << xref | |
2413 | << "X0=" << xcl[0] | |
2414 | << "X1=" << xcl[1] | |
2415 | << "X2=" << xcl[2] | |
2416 | << "X3=" << xcl[3] | |
2417 | << "X4=" << xcl[4] | |
2418 | << "X5=" << xcl[5] | |
2419 | << "Chi2R=" << chi2R | |
2420 | << "Chi2Z=" << chi2Z | |
2421 | << "Chi2RF=" << chi2RF // Chi2 of trackletes on full track | |
2422 | << "Chi2ZF=" << chi2ZF // Chi2 z on tracklets on full track | |
2423 | << "Chi2ZT2=" << chi2ZT2 // Chi2 z on tracklets on full track - rieman tilt | |
2424 | << "Chi2ZTC=" << chi2ZTC // Chi2 z on tracklets on full track - rieman tilt const | |
2425 | << "Chi2TR=" << chi2TR // Chi2 without vertex constrain | |
2426 | << "Chi2TC=" << chi2TC // Chi2 with vertex constrain | |
2427 | << "C=" << curv // Non constrained - no tilt correction | |
2428 | << "DR=" << dR // DR parameter - tilt correction | |
2429 | << "DCA=" << dca // DCA - tilt correction | |
2430 | << "CR=" << cR // Non constrained curvature - tilt correction | |
2431 | << "CC=" << cC // Constrained curvature | |
2432 | << "Polz0=" << polz0c | |
2433 | << "Polz1=" << polz1c | |
2434 | << "RPolz0=" << rpolz0 | |
2435 | << "RPolz1=" << rpolz1 | |
2436 | << "Ncl=" << nclusters | |
2437 | << "Nlayers=" << nlayers | |
2438 | << "NUsedS=" << nusedCl | |
2439 | << "NUsed=" << nusedf | |
2440 | << "Findable=" << findable | |
2441 | << "Like=" << like | |
2442 | << "LikePrim=" << likePrim | |
2443 | << "Likechi2C=" << likechi2C | |
2444 | << "Likechi2TR=" << likechi2TR | |
2445 | << "Likezf=" << likezf | |
2446 | << "LikeF=" << seedquality2[registered] | |
2447 | << "S0.=" << &cseed[0] | |
2448 | << "S1.=" << &cseed[1] | |
2449 | << "S2.=" << &cseed[2] | |
2450 | << "S3.=" << &cseed[3] | |
2451 | << "S4.=" << &cseed[4] | |
2452 | << "S5.=" << &cseed[5] | |
2453 | << "SB0.=" << &seedb[0] | |
2454 | << "SB1.=" << &seedb[1] | |
2455 | << "SB2.=" << &seedb[2] | |
2456 | << "SB3.=" << &seedb[3] | |
2457 | << "SB4.=" << &seedb[4] | |
2458 | << "SB5.=" << &seedb[5] | |
2459 | << "Label=" << label | |
2460 | << "Freq=" << frequency | |
2461 | << "sLayer=" << sLayer | |
2462 | << "\n"; | |
2463 | } | |
69b55c55 | 2464 | } |
4551ea7c | 2465 | |
2466 | if (registered<kMaxSeed - 1) { | |
69b55c55 | 2467 | registered++; |
2468 | cseed = seed[registered]; | |
2469 | } | |
4551ea7c | 2470 | |
2471 | } // End of loop over layer 1 | |
2472 | ||
2473 | } // End of loop over layer 0 | |
2474 | ||
2475 | } // End of loop over layer 3 | |
2476 | ||
2477 | } // End of loop over seeding time bins | |
2478 | ||
69b55c55 | 2479 | // |
4551ea7c | 2480 | // Choose best |
69b55c55 | 2481 | // |
4551ea7c | 2482 | |
69b55c55 | 2483 | TMath::Sort(registered,seedquality2,sort,kTRUE); |
c6f438c0 | 2484 | Bool_t signedseed[kMaxSeed]; |
4551ea7c | 2485 | for (Int_t i = 0; i < registered; i++) { |
2486 | signedseed[i] = kFALSE; | |
69b55c55 | 2487 | } |
4551ea7c | 2488 | |
2489 | for (Int_t iter = 0; iter < 5; iter++) { | |
2490 | ||
2491 | for (Int_t iseed = 0; iseed < registered; iseed++) { | |
2492 | ||
69b55c55 | 2493 | Int_t index = sort[iseed]; |
4551ea7c | 2494 | if (signedseed[index]) { |
2495 | continue; | |
2496 | } | |
69b55c55 | 2497 | Int_t labelsall[1000]; |
4551ea7c | 2498 | Int_t nlabelsall = 0; |
2499 | Int_t naccepted = 0;; | |
2500 | Int_t sLayer = seedlayer[index]; | |
2501 | Int_t ncl = 0; | |
2502 | Int_t nused = 0; | |
2503 | Int_t nlayers = 0; | |
69b55c55 | 2504 | Int_t findable = 0; |
4551ea7c | 2505 | |
2506 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2507 | ||
ca1e1e5b | 2508 | if (TMath::Abs(seed[index][jLayer].GetYref(0) / xcl[jLayer]) < 0.15) { |
69b55c55 | 2509 | findable++; |
4551ea7c | 2510 | } |
2511 | if (seed[index][jLayer].IsOK()) { | |
69b55c55 | 2512 | seed[index][jLayer].UpdateUsed(); |
ca1e1e5b | 2513 | ncl +=seed[index][jLayer].GetN2(); |
2514 | nused +=seed[index][jLayer].GetNUsed(); | |
69b55c55 | 2515 | nlayers++; |
4551ea7c | 2516 | // Cooking label |
2517 | for (Int_t itime = 0; itime < 25; itime++) { | |
ca1e1e5b | 2518 | if (seed[index][jLayer].IsUsable(itime)) { |
69b55c55 | 2519 | naccepted++; |
4551ea7c | 2520 | for (Int_t ilab = 0; ilab < 3; ilab++) { |
ca1e1e5b | 2521 | Int_t tindex = seed[index][jLayer].GetClusters(itime)->GetLabel(ilab); |
4551ea7c | 2522 | if (tindex >= 0) { |
69b55c55 | 2523 | labelsall[nlabelsall] = tindex; |
2524 | nlabelsall++; | |
2525 | } | |
2526 | } | |
2527 | } | |
2528 | } | |
2529 | } | |
4551ea7c | 2530 | |
69b55c55 | 2531 | } |
4551ea7c | 2532 | |
2533 | if (nused > 30) { | |
2534 | continue; | |
69b55c55 | 2535 | } |
4551ea7c | 2536 | |
2537 | if (iter == 0) { | |
2538 | if (nlayers < 6) { | |
2539 | continue; | |
2540 | } | |
2541 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2542 | continue; // Gold | |
2543 | } | |
7ad19338 | 2544 | } |
4551ea7c | 2545 | |
2546 | if (iter == 1) { | |
2547 | if (nlayers < findable) { | |
2548 | continue; | |
2549 | } | |
2550 | if (TMath::Log(0.000000001+seedquality2[index]) < -4.0) { | |
2551 | continue; | |
2552 | } | |
2553 | } | |
2554 | ||
2555 | if (iter == 2) { | |
2556 | if ((nlayers == findable) || | |
2557 | (nlayers == 6)) { | |
2558 | continue; | |
2559 | } | |
2560 | if (TMath::Log(0.000000001+seedquality2[index]) < -6.0) { | |
2561 | continue; | |
2562 | } | |
69b55c55 | 2563 | } |
4551ea7c | 2564 | |
2565 | if (iter == 3) { | |
2566 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2567 | continue; | |
2568 | } | |
69b55c55 | 2569 | } |
4551ea7c | 2570 | |
2571 | if (iter == 4) { | |
2572 | if (TMath::Log(0.000000001+seedquality2[index]) - nused/(nlayers-3.0) < -15.0) { | |
2573 | continue; | |
2574 | } | |
69b55c55 | 2575 | } |
4551ea7c | 2576 | |
69b55c55 | 2577 | signedseed[index] = kTRUE; |
4551ea7c | 2578 | |
2579 | Int_t labels[1000]; | |
2580 | Int_t outlab[1000]; | |
2581 | Int_t nlab = 0; | |
2582 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2583 | if (seed[index][iLayer].IsOK()) { | |
ca1e1e5b | 2584 | if (seed[index][iLayer].GetLabels(0) >= 0) { |
2585 | labels[nlab] = seed[index][iLayer].GetLabels(0); | |
69b55c55 | 2586 | nlab++; |
2587 | } | |
ca1e1e5b | 2588 | if (seed[index][iLayer].GetLabels(1) >= 0) { |
2589 | labels[nlab] = seed[index][iLayer].GetLabels(1); | |
69b55c55 | 2590 | nlab++; |
4551ea7c | 2591 | } |
2592 | } | |
7ad19338 | 2593 | } |
69b55c55 | 2594 | Freq(nlab,labels,outlab,kFALSE); |
4551ea7c | 2595 | Int_t label = outlab[0]; |
2596 | Int_t frequency = outlab[1]; | |
69b55c55 | 2597 | Freq(nlabelsall,labelsall,outlab,kFALSE); |
4551ea7c | 2598 | Int_t label1 = outlab[0]; |
2599 | Int_t label2 = outlab[2]; | |
2600 | Float_t fakeratio = (naccepted - outlab[1]) / Float_t(naccepted); | |
2601 | Float_t ratio = Float_t(nused) / Float_t(ncl); | |
2602 | if (ratio < 0.25) { | |
2603 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2604 | if ((seed[index][jLayer].IsOK()) && | |
ca1e1e5b | 2605 | (TMath::Abs(seed[index][jLayer].GetYfit(1) - seed[index][jLayer].GetYfit(1)) < 0.2)) { |
4551ea7c | 2606 | seed[index][jLayer].UseClusters(); // Sign gold |
2607 | } | |
69b55c55 | 2608 | } |
7ad19338 | 2609 | } |
4551ea7c | 2610 | |
31fd97b2 | 2611 | 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 | 2612 | TTreeSRedirector &cstream = *fDebugStreamer; |
2613 | ||
69b55c55 | 2614 | // |
4551ea7c | 2615 | // Register seed |
69b55c55 | 2616 | // |
4551ea7c | 2617 | AliTRDtrack *track = RegisterSeed(seed[index],seedparams[index]); |
2618 | AliTRDtrack dummy; | |
2619 | if (!track) { | |
2620 | track = &dummy; | |
2621 | } | |
2622 | else { | |
69b55c55 | 2623 | AliESDtrack esdtrack; |
4551ea7c | 2624 | esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout); |
69b55c55 | 2625 | esdtrack.SetLabel(label); |
2626 | esd->AddTrack(&esdtrack); | |
4551ea7c | 2627 | TTreeSRedirector &cstream = *fDebugStreamer; |
2628 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2629 | cstream << "Tracks" | |
31fd97b2 | 2630 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 2631 | << "ESD.=" << &esdtrack |
2632 | << "trd.=" << track | |
2633 | << "trdback.=" << track | |
2634 | << "\n"; | |
2635 | } | |
7ad19338 | 2636 | } |
4551ea7c | 2637 | |
2638 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2639 | cstream << "Seeds2" | |
2640 | << "Iter=" << iter | |
2641 | << "Track.=" << track | |
2642 | << "Like=" << seedquality[index] | |
2643 | << "LikeF=" << seedquality2[index] | |
2644 | << "S0.=" << &seed[index][0] | |
2645 | << "S1.=" << &seed[index][1] | |
2646 | << "S2.=" << &seed[index][2] | |
2647 | << "S3.=" << &seed[index][3] | |
2648 | << "S4.=" << &seed[index][4] | |
2649 | << "S5.=" << &seed[index][5] | |
2650 | << "Label=" << label | |
2651 | << "Label1=" << label1 | |
2652 | << "Label2=" << label2 | |
2653 | << "FakeRatio=" << fakeratio | |
2654 | << "Freq=" << frequency | |
2655 | << "Ncl=" << ncl | |
2656 | << "Nlayers=" << nlayers | |
2657 | << "Findable=" << findable | |
2658 | << "NUsed=" << nused | |
2659 | << "sLayer=" << sLayer | |
31fd97b2 | 2660 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 2661 | << "\n"; |
2662 | } | |
2663 | ||
2664 | } // Loop: iseed | |
2665 | ||
2666 | } // Loop: iter | |
2667 | ||
2668 | } // End of loop over sectors | |
75bd7f81 | 2669 | |
69b55c55 | 2670 | delete [] pseed; |
75bd7f81 | 2671 | |
69b55c55 | 2672 | } |
2673 | ||
5443e65e | 2674 | //_____________________________________________________________________________ |
4551ea7c | 2675 | Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const |
5443e65e | 2676 | { |
2677 | // | |
a819a5f7 | 2678 | // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0) |
2679 | // from the file. The names of the cluster tree and branches | |
2680 | // should match the ones used in AliTRDclusterizer::WriteClusters() | |
2681 | // | |
75bd7f81 | 2682 | |
4551ea7c | 2683 | Int_t nsize = Int_t(clusterTree->GetTotBytes() / (sizeof(AliTRDcluster))); |
6c94f330 | 2684 | TObjArray *clusterArray = new TObjArray(nsize+1000); |
5443e65e | 2685 | |
4551ea7c | 2686 | TBranch *branch = clusterTree->GetBranch("TRDcluster"); |
c630aafd | 2687 | if (!branch) { |
4551ea7c | 2688 | AliError("Can't get the branch !"); |
c630aafd | 2689 | return 1; |
2690 | } | |
029cd327 | 2691 | branch->SetAddress(&clusterArray); |
5443e65e | 2692 | |
a819a5f7 | 2693 | // Loop through all entries in the tree |
4551ea7c | 2694 | Int_t nEntries = (Int_t) clusterTree->GetEntries(); |
2695 | Int_t nbytes = 0; | |
a819a5f7 | 2696 | AliTRDcluster *c = 0; |
a819a5f7 | 2697 | for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) { |
2698 | ||
2699 | // Import the tree | |
4551ea7c | 2700 | nbytes += clusterTree->GetEvent(iEntry); |
5443e65e | 2701 | |
a819a5f7 | 2702 | // Get the number of points in the detector |
029cd327 | 2703 | Int_t nCluster = clusterArray->GetEntriesFast(); |
5443e65e | 2704 | |
a819a5f7 | 2705 | // Loop through all TRD digits |
2706 | for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) { | |
4551ea7c | 2707 | c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster); |
4f1c04d3 | 2708 | AliTRDcluster *co = c; |
a819a5f7 | 2709 | array->AddLast(co); |
4f1c04d3 | 2710 | clusterArray->RemoveAt(iCluster); |
a819a5f7 | 2711 | } |
4551ea7c | 2712 | |
a819a5f7 | 2713 | } |
2714 | ||
029cd327 | 2715 | delete clusterArray; |
5443e65e | 2716 | |
c630aafd | 2717 | return 0; |
75bd7f81 | 2718 | |
a819a5f7 | 2719 | } |
2720 | ||
75bd7f81 | 2721 | //_____________________________________________________________________________ |
4551ea7c | 2722 | Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint &p) const |
3551db50 | 2723 | { |
2724 | // | |
2725 | // Get track space point with index i | |
2726 | // Origin: C.Cheshkov | |
2727 | // | |
2728 | ||
4551ea7c | 2729 | AliTRDcluster *cl = (AliTRDcluster *) fClusters->UncheckedAt(index); |
2730 | Int_t idet = cl->GetDetector(); | |
2731 | Int_t isector = fGeom->GetSector(idet); | |
2732 | Int_t ichamber = fGeom->GetChamber(idet); | |
2733 | Int_t iplan = fGeom->GetPlane(idet); | |
3551db50 | 2734 | Double_t local[3]; |
4551ea7c | 2735 | local[0] = GetX(isector,iplan,cl->GetLocalTimeBin()); |
2736 | local[1] = cl->GetY(); | |
2737 | local[2] = cl->GetZ(); | |
3551db50 | 2738 | Double_t global[3]; |
2739 | fGeom->RotateBack(idet,local,global); | |
2740 | p.SetXYZ(global[0],global[1],global[2]); | |
ae079791 | 2741 | AliGeomManager::ELayerID iLayer = AliGeomManager::kTRD1; |
3551db50 | 2742 | switch (iplan) { |
2743 | case 0: | |
ae079791 | 2744 | iLayer = AliGeomManager::kTRD1; |
3551db50 | 2745 | break; |
2746 | case 1: | |
ae079791 | 2747 | iLayer = AliGeomManager::kTRD2; |
3551db50 | 2748 | break; |
2749 | case 2: | |
ae079791 | 2750 | iLayer = AliGeomManager::kTRD3; |
3551db50 | 2751 | break; |
2752 | case 3: | |
ae079791 | 2753 | iLayer = AliGeomManager::kTRD4; |
3551db50 | 2754 | break; |
2755 | case 4: | |
ae079791 | 2756 | iLayer = AliGeomManager::kTRD5; |
3551db50 | 2757 | break; |
2758 | case 5: | |
ae079791 | 2759 | iLayer = AliGeomManager::kTRD6; |
3551db50 | 2760 | break; |
2761 | }; | |
4551ea7c | 2762 | Int_t modId = isector * fGeom->Ncham() + ichamber; |
ae079791 | 2763 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,modId); |
3551db50 | 2764 | p.SetVolumeID(volid); |
2765 | ||
2766 | return kTRUE; | |
2767 | ||
2768 | } | |
2769 | ||
75bd7f81 | 2770 | //_____________________________________________________________________________ |
4551ea7c | 2771 | void AliTRDtracker::CookLabel(AliKalmanTrack *pt, Float_t wrong) const |
029cd327 | 2772 | { |
2773 | // | |
2774 | // This cooks a label. Mmmmh, smells good... | |
2775 | // | |
46d29e70 | 2776 | |
4551ea7c | 2777 | Int_t label = 123456789; |
2778 | Int_t index; | |
2779 | Int_t i; | |
2780 | Int_t j; | |
2781 | Int_t ncl = pt->GetNumberOfClusters(); | |
2782 | ||
2783 | const Int_t kRange = fTrSec[0]->GetOuterTimeBin() + 1; | |
5443e65e | 2784 | |
029cd327 | 2785 | Bool_t labelAdded; |
46d29e70 | 2786 | |
6c94f330 | 2787 | Int_t **s = new Int_t* [kRange]; |
4551ea7c | 2788 | for (i = 0; i < kRange; i++) { |
d1b06c24 | 2789 | s[i] = new Int_t[2]; |
2790 | } | |
4551ea7c | 2791 | for (i = 0; i < kRange; i++) { |
2792 | s[i][0] = -1; | |
2793 | s[i][1] = 0; | |
46d29e70 | 2794 | } |
2795 | ||
4551ea7c | 2796 | Int_t t0; |
2797 | Int_t t1; | |
2798 | Int_t t2; | |
2799 | ||
2800 | for (i = 0; i < ncl; i++) { | |
2801 | index = pt->GetClusterIndex(i); | |
2802 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
6c94f330 | 2803 | t0=c->GetLabel(0); |
2804 | t1=c->GetLabel(1); | |
2805 | t2=c->GetLabel(2); | |
46d29e70 | 2806 | } |
2807 | ||
4551ea7c | 2808 | for (i = 0; i < ncl; i++) { |
2809 | index = pt->GetClusterIndex(i); | |
2810 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
2811 | for (Int_t k = 0; k < 3; k++) { | |
2812 | label = c->GetLabel(k); | |
2813 | labelAdded = kFALSE; | |
2814 | j = 0; | |
46d29e70 | 2815 | if (label >= 0) { |
4551ea7c | 2816 | while ((!labelAdded) && (j < kRange)) { |
2817 | if ((s[j][0] == label) || | |
2818 | (s[j][1] == 0)) { | |
2819 | s[j][0] = label; | |
2820 | s[j][1] = s[j][1] + 1; | |
2821 | labelAdded = kTRUE; | |
a9814c09 | 2822 | } |
2823 | j++; | |
2824 | } | |
46d29e70 | 2825 | } |
2826 | } | |
2827 | } | |
2828 | ||
4551ea7c | 2829 | Int_t max = 0; |
6c94f330 | 2830 | label = -123456789; |
46d29e70 | 2831 | |
4551ea7c | 2832 | for (i = 0; i < kRange; i++) { |
2833 | if (s[i][1] > max) { | |
2834 | max = s[i][1]; | |
2835 | label = s[i][0]; | |
46d29e70 | 2836 | } |
2837 | } | |
5443e65e | 2838 | |
4551ea7c | 2839 | for (i = 0; i < kRange; i++) { |
6c94f330 | 2840 | delete []s[i]; |
5443e65e | 2841 | } |
2842 | ||
6c94f330 | 2843 | delete []s; |
5443e65e | 2844 | |
4551ea7c | 2845 | if ((1.0 - Float_t(max)/ncl) > wrong) { |
2846 | label = -label; | |
2847 | } | |
5443e65e | 2848 | |
2849 | pt->SetLabel(label); | |
2850 | ||
46d29e70 | 2851 | } |
2852 | ||
75bd7f81 | 2853 | //_____________________________________________________________________________ |
4551ea7c | 2854 | void AliTRDtracker::UseClusters(const AliKalmanTrack *t, Int_t from) const |
029cd327 | 2855 | { |
2856 | // | |
2857 | // Use clusters, but don't abuse them! | |
2858 | // | |
75bd7f81 | 2859 | |
4551ea7c | 2860 | const Float_t kmaxchi2 = 18; |
2861 | const Float_t kmincl = 10; | |
2862 | ||
2863 | AliTRDtrack *track = (AliTRDtrack *) t; | |
2864 | ||
2865 | Int_t ncl = t->GetNumberOfClusters(); | |
2866 | for (Int_t i = from; i < ncl; i++) { | |
2867 | Int_t index = t->GetClusterIndex(i); | |
2868 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
69b55c55 | 2869 | Int_t iplane = fGeom->GetPlane(c->GetDetector()); |
27eaf44b | 2870 | if (track->GetTracklets(iplane).GetChi2() > kmaxchi2) { |
4551ea7c | 2871 | continue; |
2872 | } | |
27eaf44b | 2873 | if (track->GetTracklets(iplane).GetN() < kmincl) { |
4551ea7c | 2874 | continue; |
2875 | } | |
2876 | if (!(c->IsUsed())) { | |
2877 | c->Use(); | |
2878 | } | |
5443e65e | 2879 | } |
5443e65e | 2880 | |
75bd7f81 | 2881 | } |
5443e65e | 2882 | |
75bd7f81 | 2883 | //_____________________________________________________________________________ |
029cd327 | 2884 | Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const |
5443e65e | 2885 | { |
75bd7f81 | 2886 | // |
5443e65e | 2887 | // Parametrised "expected" error of the cluster reconstruction in Y |
75bd7f81 | 2888 | // |
5443e65e | 2889 | |
2890 | Double_t s = 0.08 * 0.08; | |
2891 | return s; | |
75bd7f81 | 2892 | |
5443e65e | 2893 | } |
2894 | ||
75bd7f81 | 2895 | //_____________________________________________________________________________ |
029cd327 | 2896 | Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t , Double_t ) const |
0a29d0f1 | 2897 | { |
75bd7f81 | 2898 | // |
5443e65e | 2899 | // Parametrised "expected" error of the cluster reconstruction in Z |
75bd7f81 | 2900 | // |
5443e65e | 2901 | |
4551ea7c | 2902 | Double_t s = 9.0 * 9.0 / 12.0; |
5443e65e | 2903 | return s; |
75bd7f81 | 2904 | |
5443e65e | 2905 | } |
2906 | ||
75bd7f81 | 2907 | //_____________________________________________________________________________ |
029cd327 | 2908 | Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const |
5443e65e | 2909 | { |
2910 | // | |
029cd327 | 2911 | // Returns radial position which corresponds to time bin <localTB> |
5443e65e | 2912 | // in tracking sector <sector> and plane <plane> |
2913 | // | |
2914 | ||
6c94f330 | 2915 | Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, localTB); |
4551ea7c | 2916 | Int_t pl = fTrSec[sector]->GetLayerNumber(index); |
2917 | ||
5443e65e | 2918 | return fTrSec[sector]->GetLayer(pl)->GetX(); |
2919 | ||
2920 | } | |
2921 | ||
75bd7f81 | 2922 | //_____________________________________________________________________________ |
2923 | AliTRDtracker::AliTRDpropagationLayer | |
2924 | ::AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho | |
2925 | , Double_t radLength, Int_t tbIndex, Int_t plane) | |
ad670fba | 2926 | :fN(0) |
2927 | ,fSec(0) | |
2928 | ,fClusters(NULL) | |
2929 | ,fIndex(NULL) | |
2930 | ,fX(x) | |
2931 | ,fdX(dx) | |
2932 | ,fRho(rho) | |
2933 | ,fX0(radLength) | |
2934 | ,fTimeBinIndex(tbIndex) | |
2935 | ,fPlane(plane) | |
2936 | ,fYmax(0) | |
2937 | ,fYmaxSensitive(0) | |
2938 | ,fHole(kFALSE) | |
2939 | ,fHoleZc(0) | |
2940 | ,fHoleZmax(0) | |
2941 | ,fHoleYc(0) | |
2942 | ,fHoleYmax(0) | |
2943 | ,fHoleRho(0) | |
2944 | ,fHoleX0(0) | |
5443e65e | 2945 | { |
0a29d0f1 | 2946 | // |
5443e65e | 2947 | // AliTRDpropagationLayer constructor |
0a29d0f1 | 2948 | // |
46d29e70 | 2949 | |
ad670fba | 2950 | for (Int_t i = 0; i < (Int_t) kZones; i++) { |
2951 | fZc[i] = 0; | |
2952 | fZmax[i] = 0; | |
a819a5f7 | 2953 | } |
5443e65e | 2954 | |
ad670fba | 2955 | if (fTimeBinIndex >= 0) { |
029cd327 | 2956 | fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin]; |
ad670fba | 2957 | fIndex = new UInt_t[kMaxClusterPerTimeBin]; |
a819a5f7 | 2958 | } |
46d29e70 | 2959 | |
ad670fba | 2960 | for (Int_t i = 0; i < 5; i++) { |
2961 | fIsHole[i] = kFALSE; | |
2962 | } | |
5443e65e | 2963 | |
2964 | } | |
2965 | ||
75bd7f81 | 2966 | //_____________________________________________________________________________ |
2967 | void AliTRDtracker::AliTRDpropagationLayer | |
2968 | ::SetHole(Double_t Zmax, Double_t Ymax, Double_t rho | |
2969 | , Double_t radLength, Double_t Yc, Double_t Zc) | |
5443e65e | 2970 | { |
2971 | // | |
2972 | // Sets hole in the layer | |
2973 | // | |
75bd7f81 | 2974 | |
4551ea7c | 2975 | fHole = kTRUE; |
2976 | fHoleZc = Zc; | |
5443e65e | 2977 | fHoleZmax = Zmax; |
4551ea7c | 2978 | fHoleYc = Yc; |
5443e65e | 2979 | fHoleYmax = Ymax; |
4551ea7c | 2980 | fHoleRho = rho; |
2981 | fHoleX0 = radLength; | |
75bd7f81 | 2982 | |
5443e65e | 2983 | } |
46d29e70 | 2984 | |
75bd7f81 | 2985 | //_____________________________________________________________________________ |
2986 | AliTRDtracker::AliTRDtrackingSector | |
ad670fba | 2987 | ::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs) |
2988 | :fN(0) | |
2989 | ,fGeom(geo) | |
2990 | ,fGeomSector(gs) | |
5443e65e | 2991 | { |
2992 | // | |
2993 | // AliTRDtrackingSector Constructor | |
2994 | // | |
75bd7f81 | 2995 | |
7e448bcc | 2996 | AliTRDpadPlane *padPlane = 0; |
2997 | AliTRDpropagationLayer *ppl = 0; | |
a5cadd36 | 2998 | |
ad670fba | 2999 | // Get holes description from geometry |
3c625a9b | 3000 | Bool_t holes[AliTRDgeometry::kNcham]; |
ad670fba | 3001 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3c625a9b | 3002 | holes[icham] = fGeom->IsHole(0,icham,gs); |
3c625a9b | 3003 | } |
3c625a9b | 3004 | |
ad670fba | 3005 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { |
3006 | fTimeBinIndex[i] = -1; | |
3007 | } | |
5443e65e | 3008 | |
ad670fba | 3009 | Double_t x; |
3010 | Double_t dx; | |
3011 | Double_t rho; | |
3012 | Double_t radLength; | |
5443e65e | 3013 | |
ad670fba | 3014 | // Add layers for each of the planes |
3015 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
a305677e | 3016 | //Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region |
5443e65e | 3017 | |
ad670fba | 3018 | const Int_t kNchambers = AliTRDgeometry::Ncham(); |
a305677e | 3019 | Int_t tbIndex; |
ad670fba | 3020 | Double_t ymax = 0; |
3021 | Double_t ymaxsensitive = 0; | |
3022 | Double_t *zc = new Double_t[kNchambers]; | |
3023 | Double_t *zmax = new Double_t[kNchambers]; | |
3c625a9b | 3024 | Double_t *zmaxsensitive = new Double_t[kNchambers]; |
3551db50 | 3025 | |
ad670fba | 3026 | for (Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { |
3027 | ||
3028 | ymax = fGeom->GetChamberWidth(plane) / 2.0; | |
f162af62 | 3029 | padPlane = fGeom->GetPadPlane(plane,0); |
ad670fba | 3030 | ymaxsensitive = (padPlane->GetColSize(1) * padPlane->GetNcols() - 4.0) / 2.0; |
3031 | ||
3032 | for (Int_t ch = 0; ch < kNchambers; ch++) { | |
3033 | zmax[ch] = fGeom->GetChamberLength(plane,ch) / 2.0; | |
3034 | Float_t pad = padPlane->GetRowSize(1); | |
f162af62 | 3035 | Float_t row0 = fGeom->GetRow0(plane,ch,0); |
3036 | Int_t nPads = fGeom->GetRowMax(plane,ch,0); | |
ad670fba | 3037 | zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0; |
3038 | zc[ch] = -(pad * nPads) / 2.0 + row0; | |
5443e65e | 3039 | } |
3040 | ||
ad670fba | 3041 | dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) |
f162af62 | 3042 | / AliTRDCommonParam::Instance()->GetSamplingFrequency(); |
ad670fba | 3043 | rho = 0.00295 * 0.85; //???? |
3044 | radLength = 11.0; | |
5443e65e | 3045 | |
3551db50 | 3046 | Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane); |
a305677e | 3047 | //Double_t xbottom = x0 - dxDrift; |
ad670fba | 3048 | //Double_t xtop = x0 + dxAmp; |
3049 | ||
59393e34 | 3050 | Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
ad670fba | 3051 | for (Int_t iTime = 0; iTime < nTimeBins; iTime++) { |
3052 | ||
3053 | Double_t xlayer = iTime * dx - dxAmp; | |
3054 | //if (xlayer<0) xlayer = dxAmp / 2.0; | |
59393e34 | 3055 | x = x0 - xlayer; |
ad670fba | 3056 | |
3057 | tbIndex = CookTimeBinIndex(plane,iTime); | |
3058 | ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex,plane); | |
3c625a9b | 3059 | ppl->SetYmax(ymax,ymaxsensitive); |
ad670fba | 3060 | ppl->SetZ(zc,zmax,zmaxsensitive); |
3c625a9b | 3061 | ppl->SetHoles(holes); |
59393e34 | 3062 | InsertLayer(ppl); |
ad670fba | 3063 | |
5443e65e | 3064 | } |
ad670fba | 3065 | |
5443e65e | 3066 | } |
3067 | ||
5443e65e | 3068 | MapTimeBinLayers(); |
ad670fba | 3069 | |
029cd327 | 3070 | delete [] zc; |
3071 | delete [] zmax; | |
4f1c04d3 | 3072 | delete [] zmaxsensitive; |
5443e65e | 3073 | |
3074 | } | |
3075 | ||
ad670fba | 3076 | //_____________________________________________________________________________ |
3077 | AliTRDtracker::AliTRDtrackingSector | |
3078 | ::AliTRDtrackingSector(const AliTRDtrackingSector &/*t*/) | |
3079 | :fN(0) | |
3080 | ,fGeom(0) | |
3081 | ,fGeomSector(0) | |
3082 | { | |
3083 | // | |
3084 | // Copy constructor | |
3085 | // | |
3086 | ||
3087 | } | |
3088 | ||
75bd7f81 | 3089 | //_____________________________________________________________________________ |
3090 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3091 | ::CookTimeBinIndex(Int_t plane, Int_t localTB) const | |
5443e65e | 3092 | { |
3093 | // | |
6c94f330 | 3094 | // depending on the digitization parameters calculates "global" |
029cd327 | 3095 | // time bin index for timebin <localTB> in plane <plane> |
5443e65e | 3096 | // |
59393e34 | 3097 | // |
75bd7f81 | 3098 | |
59393e34 | 3099 | Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
4551ea7c | 3100 | Int_t gtb = (plane+1) * tbPerPlane - localTB - 1; |
3101 | if (localTB < 0) { | |
3102 | return -1; | |
3103 | } | |
3104 | if (gtb < 0) { | |
3105 | return -1; | |
3106 | } | |
75bd7f81 | 3107 | |
5443e65e | 3108 | return gtb; |
5443e65e | 3109 | |
75bd7f81 | 3110 | } |
5443e65e | 3111 | |
75bd7f81 | 3112 | //_____________________________________________________________________________ |
3113 | void AliTRDtracker::AliTRDtrackingSector | |
3114 | ::MapTimeBinLayers() | |
5443e65e | 3115 | { |
3116 | // | |
3117 | // For all sensitive time bins sets corresponding layer index | |
3118 | // in the array fTimeBins | |
3119 | // | |
3120 | ||
3121 | Int_t index; | |
3122 | ||
4551ea7c | 3123 | for (Int_t i = 0; i < fN; i++) { |
3124 | ||
5443e65e | 3125 | index = fLayers[i]->GetTimeBinIndex(); |
6c94f330 | 3126 | |
4551ea7c | 3127 | if (index < 0) { |
3128 | continue; | |
3129 | } | |
3130 | if (index >= (Int_t) kMaxTimeBinIndex) { | |
3131 | //AliWarning(Form("Index %d exceeds allowed maximum of %d!\n" | |
3132 | // ,index,kMaxTimeBinIndex-1)); | |
5443e65e | 3133 | continue; |
3134 | } | |
4551ea7c | 3135 | |
5443e65e | 3136 | fTimeBinIndex[index] = i; |
4551ea7c | 3137 | |
5443e65e | 3138 | } |
5443e65e | 3139 | |
75bd7f81 | 3140 | } |
5443e65e | 3141 | |
75bd7f81 | 3142 | //_____________________________________________________________________________ |
3143 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3144 | ::GetLayerNumber(Double_t x) const | |
5443e65e | 3145 | { |
3146 | // | |
3147 | // Returns the number of time bin which in radial position is closest to <x> | |
3148 | // | |
3149 | ||
4551ea7c | 3150 | if (x >= fLayers[fN-1]->GetX()) { |
3151 | return fN - 1; | |
3152 | } | |
3153 | if (x <= fLayers[ 0]->GetX()) { | |
3154 | return 0; | |
3155 | } | |
3156 | ||
3157 | Int_t b = 0; | |
3158 | Int_t e = fN - 1; | |
3159 | Int_t m = (b + e) / 2; | |
ad670fba | 3160 | |
4551ea7c | 3161 | for ( ; b < e; m = (b + e) / 2) { |
3162 | if (x > fLayers[m]->GetX()) { | |
3163 | b = m + 1; | |
3164 | } | |
3165 | else { | |
3166 | e = m; | |
3167 | } | |
5443e65e | 3168 | } |
75bd7f81 | 3169 | |
4551ea7c | 3170 | if (TMath::Abs(x - fLayers[m]->GetX()) > TMath::Abs(x - fLayers[m+1]->GetX())) { |
3171 | return m + 1; | |
3172 | } | |
3173 | else { | |
3174 | return m; | |
3175 | } | |
5443e65e | 3176 | |
3177 | } | |
3178 | ||
75bd7f81 | 3179 | //_____________________________________________________________________________ |
3180 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3181 | ::GetInnerTimeBin() const | |
5443e65e | 3182 | { |
3183 | // | |
3184 | // Returns number of the innermost SENSITIVE propagation layer | |
3185 | // | |
3186 | ||
3187 | return GetLayerNumber(0); | |
5443e65e | 3188 | |
75bd7f81 | 3189 | } |
5443e65e | 3190 | |
75bd7f81 | 3191 | //_____________________________________________________________________________ |
3192 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3193 | ::GetOuterTimeBin() const | |
5443e65e | 3194 | { |
3195 | // | |
3196 | // Returns number of the outermost SENSITIVE time bin | |
3197 | // | |
3198 | ||
3199 | return GetLayerNumber(GetNumberOfTimeBins() - 1); | |
46d29e70 | 3200 | |
75bd7f81 | 3201 | } |
5443e65e | 3202 | |
75bd7f81 | 3203 | //_____________________________________________________________________________ |
3204 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3205 | ::GetNumberOfTimeBins() const | |
5443e65e | 3206 | { |
3207 | // | |
3208 | // Returns number of SENSITIVE time bins | |
3209 | // | |
3210 | ||
4551ea7c | 3211 | Int_t tb; |
3212 | Int_t layer; | |
3213 | ||
3214 | for (tb = kMaxTimeBinIndex - 1; tb >= 0; tb--) { | |
5443e65e | 3215 | layer = GetLayerNumber(tb); |
4551ea7c | 3216 | if (layer >= 0) { |
3217 | break; | |
3218 | } | |
5443e65e | 3219 | } |
75bd7f81 | 3220 | |
4551ea7c | 3221 | return tb + 1; |
5443e65e | 3222 | |
75bd7f81 | 3223 | } |
5443e65e | 3224 | |
75bd7f81 | 3225 | //_____________________________________________________________________________ |
3226 | void AliTRDtracker::AliTRDtrackingSector | |
4551ea7c | 3227 | ::InsertLayer(AliTRDpropagationLayer *pl) |
5443e65e | 3228 | { |
3229 | // | |
3230 | // Insert layer <pl> in fLayers array. | |
3231 | // Layers are sorted according to X coordinate. | |
75bd7f81 | 3232 | // |
5443e65e | 3233 | |
4551ea7c | 3234 | if (fN == ((Int_t) kMaxLayersPerSector)) { |
3235 | //AliWarning("Too many layers !\n"); | |
3236 | return; | |
3237 | } | |
3238 | ||
3239 | if (fN == 0) { | |
3240 | fLayers[fN++] = pl; | |
ad670fba | 3241 | return; |
3242 | } | |
3243 | ||
4551ea7c | 3244 | Int_t i = Find(pl->GetX()); |
3245 | ||
3246 | memmove(fLayers+i+1,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*)); | |
3247 | ||
3248 | fLayers[i] = pl; | |
3249 | fN++; | |
5443e65e | 3250 | |
3251 | } | |
3252 | ||
75bd7f81 | 3253 | //_____________________________________________________________________________ |
3254 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3255 | ::Find(Double_t x) const | |
5443e65e | 3256 | { |
3257 | // | |
3258 | // Returns index of the propagation layer nearest to X | |
3259 | // | |
3260 | ||
4551ea7c | 3261 | if (x <= fLayers[0]->GetX()) { |
3262 | return 0; | |
3263 | } | |
3264 | ||
3265 | if (x > fLayers[fN-1]->GetX()) { | |
3266 | return fN; | |
3267 | } | |
3268 | ||
3269 | Int_t b = 0; | |
3270 | Int_t e = fN-1; | |
3271 | Int_t m = (b + e) / 2; | |
3272 | ||
3273 | for (; b < e; m = (b + e) / 2) { | |
3274 | if (x > fLayers[m]->GetX()) { | |
3275 | b = m + 1; | |
3276 | } | |
3277 | else { | |
3278 | e = m; | |
3279 | } | |
5443e65e | 3280 | } |
7ad19338 | 3281 | |
75bd7f81 | 3282 | return m; |
7ad19338 | 3283 | |
75bd7f81 | 3284 | } |
7ad19338 | 3285 | |
75bd7f81 | 3286 | //_____________________________________________________________________________ |
3287 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3288 | ::SetZ(Double_t *center, Double_t *w, Double_t *wsensitive ) |
3c625a9b | 3289 | { |
3290 | // | |
6c94f330 | 3291 | // set centers and the width of sectors |
75bd7f81 | 3292 | // |
3293 | ||
4551ea7c | 3294 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3295 | fZc[icham] = center[icham]; | |
3296 | fZmax[icham] = w[icham]; | |
3c625a9b | 3297 | fZmaxSensitive[icham] = wsensitive[icham]; |
3c625a9b | 3298 | } |
75bd7f81 | 3299 | |
3c625a9b | 3300 | } |
5443e65e | 3301 | |
75bd7f81 | 3302 | //_____________________________________________________________________________ |
3c625a9b | 3303 | void AliTRDtracker::AliTRDpropagationLayer::SetHoles(Bool_t *holes) |
3304 | { | |
3305 | // | |
6c94f330 | 3306 | // set centers and the width of sectors |
75bd7f81 | 3307 | // |
3308 | ||
3c625a9b | 3309 | fHole = kFALSE; |
4551ea7c | 3310 | |
3311 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
3c625a9b | 3312 | fIsHole[icham] = holes[icham]; |
4551ea7c | 3313 | if (holes[icham]) { |
3314 | fHole = kTRUE; | |
3315 | } | |
3c625a9b | 3316 | } |
5443e65e | 3317 | |
75bd7f81 | 3318 | } |
5443e65e | 3319 | |
75bd7f81 | 3320 | //_____________________________________________________________________________ |
3321 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3322 | ::InsertCluster(AliTRDcluster *c, UInt_t index) |
75bd7f81 | 3323 | { |
3324 | // | |
3325 | // Insert cluster in cluster array. | |
3326 | // Clusters are sorted according to Y coordinate. | |
3327 | // | |
5443e65e | 3328 | |
4551ea7c | 3329 | if (fTimeBinIndex < 0) { |
3330 | //AliWarning("Attempt to insert cluster into non-sensitive time bin!\n"); | |
3331 | return; | |
3332 | } | |
3333 | ||
3334 | if (fN == (Int_t) kMaxClusterPerTimeBin) { | |
3335 | //AliWarning("Too many clusters !\n"); | |
5443e65e | 3336 | return; |
3337 | } | |
ad670fba | 3338 | |
4551ea7c | 3339 | if (fN == 0) { |
3340 | fIndex[0] = index; | |
3341 | fClusters[fN++] = c; | |
ad670fba | 3342 | return; |
3343 | } | |
4551ea7c | 3344 | |
3345 | Int_t i = Find(c->GetY()); | |
3346 | memmove(fClusters+i+1,fClusters+i,(fN-i)*sizeof(AliTRDcluster*)); | |
3347 | memmove(fIndex +i+1,fIndex +i,(fN-i)*sizeof(UInt_t)); | |
3348 | fIndex[i] = index; | |
3349 | fClusters[i] = c; | |
3350 | fN++; | |
5443e65e | 3351 | |
75bd7f81 | 3352 | } |
5443e65e | 3353 | |
75bd7f81 | 3354 | //_____________________________________________________________________________ |
3355 | Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const | |
3356 | { | |
3357 | // | |
3358 | // Returns index of the cluster nearest in Y | |
3359 | // | |
5443e65e | 3360 | |
4551ea7c | 3361 | if (fN <= 0) { |
3362 | return 0; | |
3363 | } | |
3364 | if (y <= fClusters[0]->GetY()) { | |
3365 | return 0; | |
3366 | } | |
3367 | if (y > fClusters[fN-1]->GetY()) { | |
3368 | return fN; | |
3369 | } | |
3370 | ||
3371 | Int_t b = 0; | |
3372 | Int_t e = fN - 1; | |
3373 | Int_t m = (b + e) / 2; | |
3374 | ||
3375 | for ( ; b < e; m = (b + e) / 2) { | |
3376 | if (y > fClusters[m]->GetY()) { | |
3377 | b = m + 1; | |
3378 | } | |
3379 | else { | |
3380 | e = m; | |
3381 | } | |
5443e65e | 3382 | } |
75bd7f81 | 3383 | |
5443e65e | 3384 | return m; |
75bd7f81 | 3385 | |
5443e65e | 3386 | } |
3387 | ||
75bd7f81 | 3388 | //_____________________________________________________________________________ |
3389 | Int_t AliTRDtracker::AliTRDpropagationLayer | |
3390 | ::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad | |
3391 | , Float_t maxroadz) const | |
7ad19338 | 3392 | { |
3393 | // | |
3394 | // Returns index of the cluster nearest to the given y,z | |
3395 | // | |
75bd7f81 | 3396 | |
4551ea7c | 3397 | Int_t index = -1; |
3398 | Int_t maxn = fN; | |
69b55c55 | 3399 | Float_t mindist = maxroad; |
4551ea7c | 3400 | |
3401 | for (Int_t i = Find(y-maxroad); i < maxn; i++) { | |
3402 | AliTRDcluster *c = (AliTRDcluster *) (fClusters[i]); | |
69b55c55 | 3403 | Float_t ycl = c->GetY(); |
4551ea7c | 3404 | if (ycl > (y + maxroad)) { |
3405 | break; | |
3406 | } | |
3407 | if (TMath::Abs(c->GetZ() - z) > maxroadz) { | |
3408 | continue; | |
3409 | } | |
3410 | if (TMath::Abs(ycl - y) < mindist) { | |
3411 | mindist = TMath::Abs(ycl - y); | |
3412 | index = fIndex[i]; | |
3413 | } | |
6c94f330 | 3414 | } |
75bd7f81 | 3415 | |
7ad19338 | 3416 | return index; |
7ad19338 | 3417 | |
75bd7f81 | 3418 | } |
7ad19338 | 3419 | |
75bd7f81 | 3420 | //_____________________________________________________________________________ |
4551ea7c | 3421 | Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c) |
75bd7f81 | 3422 | { |
3423 | // | |
3424 | // Returns correction factor for tilted pads geometry | |
3425 | // | |
5443e65e | 3426 | |
4551ea7c | 3427 | Int_t det = c->GetDetector(); |
3428 | Int_t plane = fGeom->GetPlane(det); | |
f162af62 | 3429 | AliTRDpadPlane *padPlane = fGeom->GetPadPlane(plane,0); |
4551ea7c | 3430 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
b8dc2353 | 3431 | |
4551ea7c | 3432 | if (fNoTilt) { |
3433 | h01 = 0; | |
3434 | } | |
75bd7f81 | 3435 | |
fd621f36 | 3436 | return h01; |
5443e65e | 3437 | |
75bd7f81 | 3438 | } |
c630aafd | 3439 | |
75bd7f81 | 3440 | //_____________________________________________________________________________ |
4551ea7c | 3441 | void AliTRDtracker::CookdEdxTimBin(AliTRDtrack &TRDtrack) |
eab5961e | 3442 | { |
75bd7f81 | 3443 | // |
b08a2e7e | 3444 | // This is setting fdEdxPlane and fTimBinPlane |
3445 | // Sums up the charge in each plane for track TRDtrack and also get the | |
3446 | // Time bin for Max. Cluster | |
eab5961e | 3447 | // Prashant Shukla (shukla@physi.uni-heidelberg.de) |
b08a2e7e | 3448 | // |
eab5961e | 3449 | |
6d45eaef | 3450 | Double_t clscharge[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; |
3451 | Double_t maxclscharge[AliESDtrack::kNPlane]; | |
3452 | Int_t nCluster[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; | |
3453 | Int_t timebin[AliESDtrack::kNPlane]; | |
3454 | ||
b08a2e7e | 3455 | // Initialization of cluster charge per plane. |
6d45eaef | 3456 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
3457 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { | |
b08a2e7e | 3458 | clscharge[iPlane][iSlice] = 0.0; |
4551ea7c | 3459 | nCluster[iPlane][iSlice] = 0; |
6d45eaef | 3460 | } |
b08a2e7e | 3461 | } |
3462 | ||
3463 | // Initialization of cluster charge per plane. | |
3464 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { | |
4551ea7c | 3465 | timebin[iPlane] = -1; |
eab5961e | 3466 | maxclscharge[iPlane] = 0.0; |
3467 | } | |
3468 | ||
3469 | // Loop through all clusters associated to track TRDtrack | |
b08a2e7e | 3470 | Int_t nClus = TRDtrack.GetNumberOfClusters(); // from Kalmantrack |
3471 | for (Int_t iClus = 0; iClus < nClus; iClus++) { | |
eab5961e | 3472 | Double_t charge = TRDtrack.GetClusterdQdl(iClus); |
4551ea7c | 3473 | Int_t index = TRDtrack.GetClusterIndex(iClus); |
b08a2e7e | 3474 | AliTRDcluster *pTRDcluster = (AliTRDcluster *) GetCluster(index); |
3475 | if (!pTRDcluster) { | |
3476 | continue; | |
3477 | } | |
3478 | Int_t tb = pTRDcluster->GetLocalTimeBin(); | |
3479 | if (!tb) { | |
3480 | continue; | |
3481 | } | |
4551ea7c | 3482 | Int_t detector = pTRDcluster->GetDetector(); |
3483 | Int_t iPlane = fGeom->GetPlane(detector); | |
b08a2e7e | 3484 | if (iPlane >= AliESDtrack::kNPlane) { |
3485 | AliError(Form("Wrong plane %d",iPlane)); | |
3486 | continue; | |
3487 | } | |
3488 | Int_t iSlice = tb * AliESDtrack::kNSlice | |
3489 | / AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); | |
3490 | if (iSlice >= AliESDtrack::kNSlice) { | |
3491 | AliError(Form("Wrong slice %d",iSlice)); | |
3492 | continue; | |
3493 | } | |
3494 | clscharge[iPlane][iSlice] = clscharge[iPlane][iSlice] + charge; | |
4551ea7c | 3495 | if (charge > maxclscharge[iPlane]) { |
eab5961e | 3496 | maxclscharge[iPlane] = charge; |
4551ea7c | 3497 | timebin[iPlane] = tb; |
eab5961e | 3498 | } |
6d45eaef | 3499 | nCluster[iPlane][iSlice]++; |
4551ea7c | 3500 | } // End of loop over cluster |
eab5961e | 3501 | |
b08a2e7e | 3502 | // Setting the fdEdxPlane and fTimBinPlane variabales |
3503 | Double_t totalCharge = 0.0; | |
3504 | ||
f122c485 | 3505 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
b08a2e7e | 3506 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { |
3507 | if (nCluster[iPlane][iSlice]) { | |
3508 | clscharge[iPlane][iSlice] /= nCluster[iPlane][iSlice]; | |
3509 | } | |
4551ea7c | 3510 | TRDtrack.SetPIDsignals(clscharge[iPlane][iSlice],iPlane,iSlice); |
b08a2e7e | 3511 | totalCharge = totalCharge+clscharge[iPlane][iSlice]; |
bd50219c | 3512 | } |
b08a2e7e | 3513 | TRDtrack.SetPIDTimBin(timebin[iPlane],iPlane); |
eab5961e | 3514 | } |
b08a2e7e | 3515 | |
3516 | // Still needed ???? | |
3517 | // Int_t i; | |
3518 | // Int_t nc=TRDtrack.GetNumberOfClusters(); | |
3519 | // Float_t dedx=0; | |
3520 | // for (i=0; i<nc; i++) dedx += TRDtrack.GetClusterdQdl(i); | |
3521 | // dedx /= nc; | |
3522 | // for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) { | |
3523 | // TRDtrack.SetPIDsignals(dedx, iPlane); | |
3524 | // TRDtrack.SetPIDTimBin(timbin[iPlane], iPlane); | |
3525 | // } | |
3526 | ||
75bd7f81 | 3527 | } |
c630aafd | 3528 | |
75bd7f81 | 3529 | //_____________________________________________________________________________ |
3530 | Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1 | |
4551ea7c | 3531 | , AliTRDtrack *track |
3532 | , Int_t *clusters, AliTRDtracklet &tracklet) | |
4f1c04d3 | 3533 | { |
6c94f330 | 3534 | // |
4f1c04d3 | 3535 | // |
75bd7f81 | 3536 | // Try to find nearest clusters to the track in timebins from t0 to t1 |
4f1c04d3 | 3537 | // |
4551ea7c | 3538 | // Correction coeficients - depend on TRD parameters - to be changed accordingly |
3539 | // | |
3540 | ||
3541 | Double_t x[100]; | |
3542 | Double_t yt[100]; | |
3543 | Double_t zt[100]; | |
3544 | Double_t xmean = 0.0; // Reference x | |
3545 | Double_t dz[10][100]; | |
3546 | Double_t dy[10][100]; | |
3547 | Float_t zmean[100]; | |
3548 | Float_t nmean[100]; | |
3549 | Int_t clfound = 0; | |
3550 | Int_t indexes[10][100]; // Indexes of the clusters in the road | |
3551 | Int_t best[10][100]; // Index of best matching cluster | |
3552 | AliTRDcluster *cl[10][100]; // Pointers to the clusters in the road | |
3553 | ||
3554 | for (Int_t it = 0; it < 100; it++) { | |
3555 | x[it] = 0.0; | |
3556 | yt[it] = 0.0; | |
3557 | zt[it] = 0.0; | |
3558 | clusters[it] = -2; | |
3559 | zmean[it] = 0.0; | |
3560 | nmean[it] = 0.0; | |
3561 | for (Int_t ih = 0; ih < 10;ih++) { | |
3562 | indexes[ih][it] = -2; // Reset indexes1 | |
3563 | cl[ih][it] = 0; | |
3564 | dz[ih][it] = -100.0; | |
3565 | dy[ih][it] = -100.0; | |
3566 | best[ih][it] = 0; | |
3567 | } | |
3568 | } | |
ad670fba | 3569 | |
4551ea7c | 3570 | Double_t x0 = track->GetX(); |
3571 | Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2())); | |
3572 | Int_t nall = 0; | |
3573 | Int_t nfound = 0; | |
3574 | Double_t h01 = 0.0; | |
3575 | Int_t plane = -1; | |
3576 | Int_t detector = -1; | |
3577 | Float_t padlength = 0.0; | |
3578 | AliTRDtrack track2(* track); | |
3579 | Float_t snpy = track->GetSnp(); | |
3580 | Float_t tany = TMath::Sqrt(snpy*snpy / (1.0 - snpy*snpy)); | |
3581 | if (snpy < 0.0) { | |
3582 | tany *= -1.0; | |
3583 | } | |
ad670fba | 3584 | |
4551ea7c | 3585 | Double_t sy2 = ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt()); |
3586 | Double_t sz2 = ExpectedSigmaZ2(x0,track->GetTgl()); | |
3587 | Double_t road = 15.0 * TMath::Sqrt(track->GetSigmaY2() + sy2); | |
3588 | if (road > 6.0) { | |
3589 | road = 6.0; | |
3590 | } | |
7e448bcc | 3591 | //road = 20.0; |
4551ea7c | 3592 | |
3593 | for (Int_t it = 0; it < t1-t0; it++) { | |
3594 | ||
3595 | Double_t maxChi2[2] = { fgkMaxChi2, fgkMaxChi2 }; | |
3596 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(it+t0)); | |
3597 | if (timeBin == 0) { | |
3598 | continue; // No indexes1 | |
6c94f330 | 3599 | } |
4551ea7c | 3600 | |
3601 | Int_t maxn = timeBin; | |
3602 | x[it] = timeBin.GetX(); | |
7ad19338 | 3603 | track2.PropagateTo(x[it]); |
6c94f330 | 3604 | yt[it] = track2.GetY(); |
3605 | zt[it] = track2.GetZ(); | |
7ad19338 | 3606 | |
4551ea7c | 3607 | Double_t y = yt[it]; |
3608 | Double_t z = zt[it]; | |
3609 | Double_t chi2 = 1000000.0; | |
4f1c04d3 | 3610 | nall++; |
4551ea7c | 3611 | |
4f1c04d3 | 3612 | // |
4551ea7c | 3613 | // Find 2 nearest cluster at given time bin |
6c94f330 | 3614 | // |
7e448bcc | 3615 | int checkPoint[4] = {0,0,0,0}; |
3616 | double minY = 123456789; | |
3617 | double minD[2] = {1,1}; | |
3618 | ||
4551ea7c | 3619 | for (Int_t i = timeBin.Find(y - road); i < maxn; i++) { |
7e448bcc | 3620 | //for (Int_t i = 0; i < maxn; i++) { |
4551ea7c | 3621 | |
3622 | AliTRDcluster *c = (AliTRDcluster *) (timeBin[i]); | |
7ad19338 | 3623 | h01 = GetTiltFactor(c); |
4551ea7c | 3624 | if (plane < 0) { |
c6f438c0 | 3625 | Int_t det = c->GetDetector(); |
4551ea7c | 3626 | plane = fGeom->GetPlane(det); |
3627 | padlength = TMath::Sqrt(c->GetSigmaZ2() * 12.0); | |
3628 | } | |
7e448bcc | 3629 | |
4551ea7c | 3630 | //if (c->GetLocalTimeBin()==0) continue; |
3631 | if (c->GetY() > (y + road)) { | |
3632 | break; | |
3633 | } | |
7e448bcc | 3634 | |
3635 | fHDeltaX->Fill(c->GetX() - x[it]); | |
3636 | //printf("%f\t%f\t%f \n", c->GetX(), x[it], c->GetX()-x[it]); | |
3637 | ||
3638 | if (TMath::Abs(c->GetY()-y) < TMath::Abs(minY)) { | |
3639 | minY = c->GetY()-y; | |
3640 | minD[0] = c->GetY()-y; | |
3641 | minD[1] = c->GetZ()-z; | |
3642 | } | |
3643 | ||
3644 | checkPoint[0]++; | |
3645 | ||
3646 | fHMinZ->Fill(c->GetZ() - z); | |
3647 | if ((c->GetZ() - z) * (c->GetZ() - z) > 2 * (12.0 * sz2)) { | |
4551ea7c | 3648 | continue; |
7ad19338 | 3649 | } |
7e448bcc | 3650 | checkPoint[1]++; |
7ad19338 | 3651 | |
4551ea7c | 3652 | Double_t dist = TMath::Abs(c->GetZ() - z); |
7e448bcc | 3653 | if (dist > (0.5 * padlength + 6.0 * sigmaz)) { // 0.5 |
4551ea7c | 3654 | continue; // 6 sigma boundary cut |
3655 | } | |
7e448bcc | 3656 | checkPoint[2]++; |
3657 | ||
4551ea7c | 3658 | Double_t cost = 0.0; |
3659 | // Sigma boundary cost function | |
3660 | if (dist> (0.5 * padlength - sigmaz)){ | |
3661 | cost = (dist - 0.5*padlength) / (2.0 * sigmaz); | |
3662 | if (cost > -1) { | |
3663 | cost = (cost + 1.0) * (cost + 1.0); | |
3664 | } | |
3665 | else { | |
3666 | cost = 0.0; | |
3667 | } | |
3668 | } | |
3669 | //Int_t label = TMath::Abs(track->GetLabel()); | |
3670 | //if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue; | |
3671 | chi2 = track2.GetPredictedChi2(c,h01) + cost; | |
7ad19338 | 3672 | clfound++; |
6c94f330 | 3673 | |
4551ea7c | 3674 | if (chi2 > maxChi2[1]) { |
3675 | continue; | |
3676 | } | |
7e448bcc | 3677 | checkPoint[3]++; |
3678 | ||
4551ea7c | 3679 | detector = c->GetDetector(); |
3680 | // Store the clusters in the road | |
3681 | for (Int_t ih = 2; ih < 9; ih++) { | |
3682 | if (cl[ih][it] == 0) { | |
3683 | cl[ih][it] = c; | |
3684 | indexes[ih][it] = timeBin.GetIndex(i); // Index - 9 - reserved for outliers | |
7ad19338 | 3685 | break; |
3686 | } | |
4f1c04d3 | 3687 | } |
4551ea7c | 3688 | |
3689 | if (chi2 < maxChi2[0]) { | |
7ad19338 | 3690 | maxChi2[1] = maxChi2[0]; |
3691 | maxChi2[0] = chi2; | |
3692 | indexes[1][it] = indexes[0][it]; | |
3693 | cl[1][it] = cl[0][it]; | |
3694 | indexes[0][it] = timeBin.GetIndex(i); | |
3695 | cl[0][it] = c; | |
3696 | continue; | |
3697 | } | |
4551ea7c | 3698 | maxChi2[1] = chi2; |
3699 | cl[1][it] = c; | |
3700 | indexes[1][it] = timeBin.GetIndex(i); | |
3701 | ||
3702 | } | |
7e448bcc | 3703 | |
3704 | for(int iCheckPoint = 0; iCheckPoint<4; iCheckPoint++) | |
3705 | fHFindCl[iCheckPoint]->Fill(checkPoint[iCheckPoint]); | |
3706 | ||
3707 | if (checkPoint[3]) { | |
3708 | if (track->GetPt() > 0) fHMinYPos->Fill(minY); | |
3709 | else fHMinYNeg->Fill(minY); | |
3710 | ||
3711 | fHMinD->Fill(minD[0], minD[1]); | |
3712 | } | |
4551ea7c | 3713 | |
3714 | if (cl[0][it]) { | |
7ad19338 | 3715 | nfound++; |
3716 | xmean += x[it]; | |
3717 | } | |
4551ea7c | 3718 | |
4f1c04d3 | 3719 | } |
4551ea7c | 3720 | |
3721 | if (nfound < 4) { | |
3722 | return 0; | |
3723 | } | |
3724 | xmean /= Float_t(nfound); // Middle x | |
3725 | track2.PropagateTo(xmean); // Propagate track to the center | |
3726 | ||
4f1c04d3 | 3727 | // |
4551ea7c | 3728 | // Choose one of the variants |
7ad19338 | 3729 | // |
4551ea7c | 3730 | Int_t changes[10]; |
3731 | Float_t sumz = 0.0; | |
3732 | Float_t sum = 0.0; | |
3733 | Double_t sumdy = 0.0; | |
3734 | Double_t sumdy2 = 0.0; | |
3735 | Double_t sumx = 0.0; | |
3736 | Double_t sumxy = 0.0; | |
3737 | Double_t sumx2 = 0.0; | |
3738 | Double_t mpads = 0.0; | |
3739 | ||
3740 | Int_t ngood[10]; | |
3741 | Int_t nbad[10]; | |
3742 | ||
7ad19338 | 3743 | Double_t meanz[10]; |
4551ea7c | 3744 | Double_t moffset[10]; // Mean offset |
3745 | Double_t mean[10]; // Mean value | |
3746 | Double_t angle[10]; // Angle | |
3747 | ||
3748 | Double_t smoffset[10]; // Sigma of mean offset | |
3749 | Double_t smean[10]; // Sigma of mean value | |
3750 | Double_t sangle[10]; // Sigma of angle | |
3751 | Double_t smeanangle[10]; // Correlation | |
3752 | ||
7ad19338 | 3753 | Double_t sigmas[10]; |
4551ea7c | 3754 | Double_t tchi2s[10]; // Chi2s for tracklet |
ad670fba | 3755 | |
4551ea7c | 3756 | for (Int_t it = 0; it < 10; it++) { |
ad670fba | 3757 | |
4551ea7c | 3758 | ngood[it] = 0; |
3759 | nbad[it] = 0; | |
3760 | ||
3761 | meanz[it] = 0.0; | |
3762 | moffset[it] = 0.0; // Mean offset | |
3763 | mean[it] = 0.0; // Mean value | |
3764 | angle[it] = 0.0; // Angle | |
3765 | ||
7e448bcc | 3766 | smoffset[it] = 1.0e5; // Sigma of mean offset |
3767 | smean[it] = 1.0e5; // Sigma of mean value | |
3768 | sangle[it] = 1.0e5; // Sigma of angle | |
4551ea7c | 3769 | smeanangle[it] = 0.0; // Correlation |
3770 | ||
7e448bcc | 3771 | sigmas[it] = 1.0e5; |
3772 | tchi2s[it] = 1.0e5; // Chi2s for tracklet | |
75bd7f81 | 3773 | |
3774 | } | |
3775 | ||
7ad19338 | 3776 | // |
4551ea7c | 3777 | // Calculate zmean |
7ad19338 | 3778 | // |
4551ea7c | 3779 | for (Int_t it = 0; it < t1 - t0; it++) { |
3780 | if (!cl[0][it]) { | |
3781 | continue; | |
3782 | } | |
3783 | for (Int_t dt = -3; dt <= 3; dt++) { | |
3784 | if (it+dt < 0) { | |
3785 | continue; | |
3786 | } | |
3787 | if (it+dt > t1-t0) { | |
3788 | continue; | |
3789 | } | |
3790 | if (!cl[0][it+dt]) { | |
3791 | continue; | |
3792 | } | |
3793 | zmean[it] += cl[0][it+dt]->GetZ(); | |
3794 | nmean[it] += 1.0; | |
7ad19338 | 3795 | } |
4551ea7c | 3796 | zmean[it] /= nmean[it]; |
7ad19338 | 3797 | } |
4551ea7c | 3798 | |
3799 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3800 | ||
3801 | best[0][it] = 0; | |
3802 | ||
3803 | for (Int_t ih = 0; ih < 10; ih++) { | |
3804 | dz[ih][it] = -100.0; | |
3805 | dy[ih][it] = -100.0; | |
3806 | if (!cl[ih][it]) { | |
3807 | continue; | |
3808 | } | |
3809 | Double_t xcluster = cl[ih][it]->GetX(); | |
3810 | Double_t ytrack; | |
3811 | Double_t ztrack; | |
3812 | track2.GetProlongation(xcluster,ytrack,ztrack ); | |
3813 | dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // Calculate distance from track in z | |
3814 | dy[ih][it] = cl[ih][it]->GetY() + dz[ih][it]*h01 - ytrack; // and in y | |
7ad19338 | 3815 | } |
4551ea7c | 3816 | |
3817 | // Minimize changes | |
3818 | if (!cl[0][it]) { | |
3819 | continue; | |
3820 | } | |
3821 | if ((TMath::Abs(cl[0][it]->GetZ()-zmean[it]) > padlength * 0.8) && | |
3822 | (cl[1][it])) { | |
3823 | if (TMath::Abs(cl[1][it]->GetZ()-zmean[it]) < padlength * 0.5) { | |
3824 | best[0][it] = 1; | |
4f1c04d3 | 3825 | } |
4551ea7c | 3826 | } |
3827 | ||
7ad19338 | 3828 | } |
4551ea7c | 3829 | |
7ad19338 | 3830 | // |
4551ea7c | 3831 | // Iterative choice of "best path" |
6c94f330 | 3832 | // |
4551ea7c | 3833 | Int_t label = TMath::Abs(track->GetLabel()); |
3834 | Int_t bestiter = 0; | |
3835 | ||
3836 | for (Int_t iter = 0; iter < 9; iter++) { | |
3837 | ||
3838 | changes[iter] = 0; | |
3839 | sumz = 0; | |
3840 | sum = 0; | |
3841 | sumdy = 0; | |
3842 | sumdy2 = 0; | |
3843 | sumx = 0; | |
3844 | sumx2 = 0; | |
3845 | sumxy = 0; | |
3846 | mpads = 0; | |
3847 | ngood[iter] = 0; | |
3848 | nbad[iter] = 0; | |
3849 | ||
3850 | // Linear fit | |
3851 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3852 | ||
3853 | if (!cl[best[iter][it]][it]) { | |
3854 | continue; | |
3855 | } | |
3856 | ||
3857 | // Calculates pad-row changes | |
3858 | Double_t zbefore = cl[best[iter][it]][it]->GetZ(); | |
3859 | Double_t zafter = cl[best[iter][it]][it]->GetZ(); | |
3860 | for (Int_t itd = it - 1; itd >= 0; itd--) { | |
7ad19338 | 3861 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3862 | zbefore = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3863 | break; |
3864 | } | |
3865 | } | |
4551ea7c | 3866 | for (Int_t itd = it + 1; itd < t1 - t0; itd++) { |
7ad19338 | 3867 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3868 | zafter = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3869 | break; |
3870 | } | |
3871 | } | |
4551ea7c | 3872 | if ((TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore) > 0.1) && |
3873 | (TMath::Abs(cl[best[iter][it]][it]->GetZ()- zafter) > 0.1)) { | |
3874 | changes[iter]++; | |
3875 | } | |
3876 | ||
3877 | Double_t dx = x[it]-xmean; // Distance to reference x | |
3878 | sumz += cl[best[iter][it]][it]->GetZ(); | |
4f1c04d3 | 3879 | sum++; |
4551ea7c | 3880 | sumdy += dy[best[iter][it]][it]; |
3881 | sumdy2 += dy[best[iter][it]][it]*dy[best[iter][it]][it]; | |
3882 | sumx += dx; | |
3883 | sumx2 += dx*dx; | |
7ad19338 | 3884 | sumxy += dx*dy[best[iter][it]][it]; |
4551ea7c | 3885 | mpads += cl[best[iter][it]][it]->GetNPads(); |
3886 | if ((cl[best[iter][it]][it]->GetLabel(0) == label) || | |
3887 | (cl[best[iter][it]][it]->GetLabel(1) == label) || | |
3888 | (cl[best[iter][it]][it]->GetLabel(2) == label)) { | |
7ad19338 | 3889 | ngood[iter]++; |
4f1c04d3 | 3890 | } |
4551ea7c | 3891 | else { |
7ad19338 | 3892 | nbad[iter]++; |
4f1c04d3 | 3893 | } |
4551ea7c | 3894 | |
4f1c04d3 | 3895 | } |
4551ea7c | 3896 | |
7ad19338 | 3897 | // |
6c94f330 | 3898 | // calculates line parameters |
7ad19338 | 3899 | // |
4551ea7c | 3900 | Double_t det = sum*sumx2 - sumx*sumx; |
3901 | angle[iter] = (sum*sumxy - sumx*sumdy) / det; | |
3902 | mean[iter] = (sumx2*sumdy - sumx*sumxy) / det; | |
3903 | meanz[iter] = sumz / sum; | |
3904 | moffset[iter] = sumdy / sum; | |
3905 | mpads /= sum; // Mean number of pads | |
3906 | ||
3907 | Double_t sigma2 = 0.0; // Normalized residuals - for line fit | |
3908 | Double_t sigma1 = 0.0; // Normalized residuals - constant fit | |
3909 | ||
3910 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3911 | if (!cl[best[iter][it]][it]) { | |
3912 | continue; | |
3913 | } | |
3914 | Double_t dx = x[it] - xmean; | |
3915 | Double_t ytr = mean[iter] + angle[iter] * dx; | |
3916 | sigma2 += (dy[best[iter][it]][it] - ytr) | |
3917 | * (dy[best[iter][it]][it] - ytr); | |
3918 | sigma1 += (dy[best[iter][it]][it] - moffset[iter]) | |
3919 | * (dy[best[iter][it]][it] - moffset[iter]); | |
7ad19338 | 3920 | sum++; |
4f1c04d3 | 3921 | } |
4551ea7c | 3922 | sigma2 /= (sum - 2); // Normalized residuals |
3923 | sigma1 /= (sum - 1); // Normalized residuals | |
3924 | smean[iter] = sigma2 * (sumx2 / det); // Estimated error2 of mean | |
3925 | sangle[iter] = sigma2 * ( sum / det); // Estimated error2 of angle | |
3926 | smeanangle[iter] = sigma2 * (-sumx / det); // Correlation | |
3927 | sigmas[iter] = TMath::Sqrt(sigma1); | |
3928 | smoffset[iter] = (sigma1 / sum) + 0.01*0.01; // Sigma of mean offset + unisochronity sigma | |
3929 | ||
6c94f330 | 3930 | // |
4551ea7c | 3931 | // Iterative choice of "better path" |
6c94f330 | 3932 | // |
4551ea7c | 3933 | for (Int_t it = 0; it < t1 - t0; it++) { |
3934 | ||
3935 | if (!cl[best[iter][it]][it]) { | |
3936 | continue; | |
3937 | } | |
3938 | ||
3939 | // Add unisochronity + angular effect contribution | |
3940 | Double_t sigmatr2 = smoffset[iter] + 0.5*tany*tany; | |
3941 | Double_t sweight = 1.0/sigmatr2 + 1.0/track->GetSigmaY2(); | |
3942 | Double_t weighty = (moffset[iter] / sigmatr2) / sweight; // Weighted mean | |
3943 | Double_t sigmacl = TMath::Sqrt(sigma1*sigma1 + track->GetSigmaY2()); | |
3944 | Double_t mindist = 100000.0; | |
3945 | Int_t ihbest = 0; | |
3946 | ||
3947 | for (Int_t ih = 0; ih < 10; ih++) { | |
3948 | if (!cl[ih][it]) { | |
3949 | break; | |
3950 | } | |
3951 | Double_t dist2 = (dy[ih][it] - weighty) / sigmacl; | |
3952 | dist2 *= dist2; // Chi2 distance | |
3953 | if (dist2 < mindist) { | |
7ad19338 | 3954 | mindist = dist2; |
4551ea7c | 3955 | ihbest = ih; |
7ad19338 | 3956 | } |
3957 | } | |
4551ea7c | 3958 | best[iter+1][it] = ihbest; |
4f1c04d3 | 3959 | } |
4551ea7c | 3960 | |
4f1c04d3 | 3961 | // |
4551ea7c | 3962 | // Update best hypothesy if better chi2 according tracklet position and angle |
7ad19338 | 3963 | // |
69b55c55 | 3964 | Double_t sy2 = smean[iter] + track->GetSigmaY2(); |
4551ea7c | 3965 | Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee; |
3966 | Double_t say = track->GetSigmaSnpY(); // track->fCey; | |
3967 | //Double_t chi20 = mean[bestiter]*mean[bestiter ] / sy2+angle[bestiter]*angle[bestiter]/sa2; | |
3968 | //Double_t chi21 = mean[iter]*mean[iter] / sy2+angle[iter]*angle[iter]/sa2; | |
6c94f330 | 3969 | |
4551ea7c | 3970 | Double_t detchi = sy2*sa2 - say*say; |
3971 | Double_t invers[3] = {sa2/detchi,sy2/detchi,-say/detchi}; // Inverse value of covariance matrix | |
4f1c04d3 | 3972 | |
4551ea7c | 3973 | Double_t chi20 = mean[bestiter] * mean[bestiter] * invers[0] |
3974 | + angle[bestiter] * angle[bestiter] * invers[1] | |
3975 | + 2.0 * mean[bestiter] * angle[bestiter] * invers[2]; | |
3976 | Double_t chi21 = mean[iter] * mean[iter] * invers[0] | |
3977 | + angle[iter] * angle[iter] * invers[1] | |
3978 | + 2.0 * mean[iter] * angle[iter] * invers[2]; | |
3979 | tchi2s[iter] = chi21; | |
3980 | ||
3981 | if ((changes[iter] <= changes[bestiter]) && | |
3982 | (chi21 < chi20)) { | |
3983 | bestiter = iter; | |
7ad19338 | 3984 | } |
4551ea7c | 3985 | |
7ad19338 | 3986 | } |
4551ea7c | 3987 | |
7ad19338 | 3988 | // |
4551ea7c | 3989 | // Set clusters |
7ad19338 | 3990 | // |
4551ea7c | 3991 | Double_t sigma2 = sigmas[0]; // Choose as sigma from 0 iteration |
3992 | Short_t maxpos = -1; | |
3993 | Float_t maxcharge = 0.0; | |
3994 | Short_t maxpos4 = -1; | |
3995 | Float_t maxcharge4 = 0.0; | |
3996 | Short_t maxpos5 = -1; | |
3997 | Float_t maxcharge5 = 0.0; | |
8979685e | 3998 | |
7ad19338 | 3999 | //if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.; |
4000 | //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept | |
4001 | ||
4e009ce4 | 4002 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0) |
4003 | ,-AliTracker::GetBz()*0.1); | |
4551ea7c | 4004 | Double_t expectederr = sigma2*sigma2 + 0.01*0.01; |
4005 | if (mpads > 3.5) { | |
4006 | expectederr += (mpads - 3.5) * 0.04; | |
4007 | } | |
4008 | if (changes[bestiter] > 1) { | |
4009 | expectederr += changes[bestiter] * 0.01; | |
4010 | } | |
4011 | expectederr += (0.03 * (tany-exB)*(tany-exB)) * 15.0; | |
4012 | //if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.; | |
7ad19338 | 4013 | //expectederr+=10000; |
4551ea7c | 4014 | |
4015 | for (Int_t it = 0; it < t1 - t0; it++) { | |
4016 | ||
4017 | if (!cl[best[bestiter][it]][it]) { | |
4018 | continue; | |
69b55c55 | 4019 | } |
4551ea7c | 4020 | |
4021 | cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // Set cluster error | |
4022 | if (!cl[best[bestiter][it]][it]->IsUsed()) { | |
4023 | cl[best[bestiter][it]][it]->SetY(cl[best[bestiter][it]][it]->GetY()); | |
4024 | //cl[best[bestiter][it]][it]->Use(); | |
4025 | } | |
4026 | ||
4027 | // Time bins with maximal charge | |
4028 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
69b55c55 | 4029 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4030 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4031 | } |
6c94f330 | 4032 | |
4551ea7c | 4033 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
4034 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
69b55c55 | 4035 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4036 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4037 | } |
4038 | } | |
4551ea7c | 4039 | |
4040 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
4041 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
69b55c55 | 4042 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4043 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4044 | } |
7ad19338 | 4045 | } |
4551ea7c | 4046 | |
4047 | // Time bins with maximal charge | |
4048 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
8979685e | 4049 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4050 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4051 | } |
6c94f330 | 4052 | |
4551ea7c | 4053 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
4054 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
8979685e | 4055 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4056 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4057 | } |
4058 | } | |
4551ea7c | 4059 | |
4060 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
4061 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
8979685e | 4062 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4063 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4064 | } |
4065 | } | |
4551ea7c | 4066 | |
7ad19338 | 4067 | clusters[it+t0] = indexes[best[bestiter][it]][it]; |
4551ea7c | 4068 | |
4069 | // Still needed ???? | |
4070 | //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 && | |
4071 | //cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0] | |
4072 | // = indexes[best[bestiter][it]][it]; //Test | |
4073 | ||
7ad19338 | 4074 | } |
4551ea7c | 4075 | |
7ad19338 | 4076 | // |
4551ea7c | 4077 | // Set tracklet parameters |
6c94f330 | 4078 | // |
4551ea7c | 4079 | Double_t trackleterr2 = smoffset[bestiter] + 0.01*0.01; |
4080 | if (mpads > 3.5) { | |
4081 | trackleterr2 += (mpads - 3.5) * 0.04; | |
4082 | } | |
4083 | trackleterr2 += changes[bestiter] * 0.01; | |
4084 | trackleterr2 *= TMath::Max(14.0 - nfound,1.0); | |
4085 | trackleterr2 += 0.2 * (tany-exB)*(tany-exB); | |
4086 | ||
4087 | // Set tracklet parameters | |
4088 | tracklet.Set(xmean | |
4089 | ,track2.GetY() + moffset[bestiter] | |
4090 | ,meanz[bestiter] | |
4091 | ,track2.GetAlpha() | |
4092 | ,trackleterr2); | |
7ad19338 | 4093 | tracklet.SetTilt(h01); |
4094 | tracklet.SetP0(mean[bestiter]); | |
4095 | tracklet.SetP1(angle[bestiter]); | |
4096 | tracklet.SetN(nfound); | |
4097 | tracklet.SetNCross(changes[bestiter]); | |
4098 | tracklet.SetPlane(plane); | |
4099 | tracklet.SetSigma2(expectederr); | |
4100 | tracklet.SetChi2(tchi2s[bestiter]); | |
8979685e | 4101 | tracklet.SetMaxPos(maxpos,maxpos4,maxpos5); |
27eaf44b | 4102 | track->SetTracklets(plane,tracklet); |
4103 | track->SetNWrong(track->GetNWrong() + nbad[0]); | |
4551ea7c | 4104 | |
7ad19338 | 4105 | // |
4106 | // Debuging part | |
4107 | // | |
69b55c55 | 4108 | TClonesArray array0("AliTRDcluster"); |
4109 | TClonesArray array1("AliTRDcluster"); | |
4551ea7c | 4110 | array0.ExpandCreateFast(t1 - t0 + 1); |
4111 | array1.ExpandCreateFast(t1 - t0 + 1); | |
4112 | TTreeSRedirector &cstream = *fDebugStreamer; | |
7ad19338 | 4113 | AliTRDcluster dummy; |
4114 | Double_t dy0[100]; | |
8979685e | 4115 | Double_t dyb[100]; |
4116 | ||
4551ea7c | 4117 | for (Int_t it = 0; it < t1 - t0; it++) { |
7ad19338 | 4118 | dy0[it] = dy[0][it]; |
4119 | dyb[it] = dy[best[bestiter][it]][it]; | |
4551ea7c | 4120 | if (cl[0][it]) { |
7ad19338 | 4121 | new(array0[it]) AliTRDcluster(*cl[0][it]); |
4122 | } | |
4551ea7c | 4123 | else { |
7ad19338 | 4124 | new(array0[it]) AliTRDcluster(dummy); |
4125 | } | |
4126 | if(cl[best[bestiter][it]][it]) { | |
4127 | new(array1[it]) AliTRDcluster(*cl[best[bestiter][it]][it]); | |
4128 | } | |
4129 | else{ | |
4130 | new(array1[it]) AliTRDcluster(dummy); | |
4131 | } | |
4f1c04d3 | 4132 | } |
7ad19338 | 4133 | TGraph graph0(t1-t0,x,dy0); |
4134 | TGraph graph1(t1-t0,x,dyb); | |
4135 | TGraph graphy(t1-t0,x,yt); | |
4136 | TGraph graphz(t1-t0,x,zt); | |
4551ea7c | 4137 | |
4138 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
4139 | cstream << "tracklet" | |
4140 | << "track.=" << track // Track parameters | |
4141 | << "tany=" << tany // Tangent of the local track angle | |
4142 | << "xmean=" << xmean // Xmean - reference x of tracklet | |
4143 | << "tilt=" << h01 // Tilt angle | |
4144 | << "nall=" << nall // Number of foundable clusters | |
4145 | << "nfound=" << nfound // Number of found clusters | |
4146 | << "clfound=" << clfound // Total number of found clusters in road | |
4147 | << "mpads=" << mpads // Mean number of pads per cluster | |
4148 | << "plane=" << plane // Plane number | |
4149 | << "detector=" << detector // Detector number | |
4150 | << "road=" << road // The width of the used road | |
4151 | << "graph0.=" << &graph0 // x - y = dy for closest cluster | |
4152 | << "graph1.=" << &graph1 // x - y = dy for second closest cluster | |
4153 | << "graphy.=" << &graphy // y position of the track | |
4154 | << "graphz.=" << &graphz // z position of the track | |
4155 | //<< "fCl.=" << &array0 // closest cluster | |
4156 | //<< "fCl2.=" << &array1 // second closest cluster | |
4157 | << "maxpos=" << maxpos // Maximal charge postion | |
4158 | << "maxcharge=" << maxcharge // Maximal charge | |
4159 | << "maxpos4=" << maxpos4 // Maximal charge postion - after bin 4 | |
4160 | << "maxcharge4=" << maxcharge4 // Maximal charge - after bin 4 | |
4161 | << "maxpos5=" << maxpos5 // Maximal charge postion - after bin 5 | |
4162 | << "maxcharge5=" << maxcharge5 // Maximal charge - after bin 5 | |
4163 | << "bestiter=" << bestiter // Best iteration number | |
4164 | << "tracklet.=" << &tracklet // Corrspond to the best iteration | |
4165 | << "tchi20=" << tchi2s[0] // Chi2 of cluster in the 0 iteration | |
4166 | << "tchi2b=" << tchi2s[bestiter] // Chi2 of cluster in the best iteration | |
4167 | << "sigmas0=" << sigmas[0] // Residuals sigma | |
4168 | << "sigmasb=" << sigmas[bestiter] // Residulas sigma | |
4169 | << "ngood0=" << ngood[0] // Number of good clusters in 0 iteration | |
4170 | << "nbad0=" << nbad[0] // Number of bad clusters in 0 iteration | |
4171 | << "ngoodb=" << ngood[bestiter] // in best iteration | |
4172 | << "nbadb=" << nbad[bestiter] // in best iteration | |
4173 | << "changes0=" << changes[0] // Changes of pardrows in iteration number 0 | |
4174 | << "changesb=" << changes[bestiter] // Changes of pardrows in best iteration | |
4175 | << "moffset0=" << moffset[0] // Offset fixing angle in iter=0 | |
4176 | << "smoffset0=" << smoffset[0] // Sigma of offset fixing angle in iter=0 | |
4177 | << "moffsetb=" << moffset[bestiter] // Offset fixing angle in iter=best | |
4178 | << "smoffsetb=" << smoffset[bestiter] // Sigma of offset fixing angle in iter=best | |
4179 | << "mean0=" << mean[0] // Mean dy in iter=0; | |
4180 | << "smean0=" << smean[0] // Sigma of mean dy in iter=0 | |
4181 | << "meanb=" << mean[bestiter] // Mean dy in iter=best | |
4182 | << "smeanb=" << smean[bestiter] // Sigma of mean dy in iter=best | |
4183 | << "angle0=" << angle[0] // Angle deviation in the iteration number 0 | |
4184 | << "sangle0=" << sangle[0] // Sigma of angular deviation in iteration number 0 | |
4185 | << "angleb=" << angle[bestiter] // Angle deviation in the best iteration | |
4186 | << "sangleb=" << sangle[bestiter] // Sigma of angle deviation in the best iteration | |
4187 | << "expectederr=" << expectederr // Expected error of cluster position | |
4188 | << "\n"; | |
4189 | } | |
4190 | ||
4f1c04d3 | 4191 | return nfound; |
4f1c04d3 | 4192 | |
75bd7f81 | 4193 | } |
4f1c04d3 | 4194 | |
75bd7f81 | 4195 | //_____________________________________________________________________________ |
4196 | Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist | |
4197 | , Int_t *outlist, Bool_t down) | |
69b55c55 | 4198 | { |
4199 | // | |
4551ea7c | 4200 | // Sort eleements according occurancy |
4201 | // The size of output array has is 2*n | |
69b55c55 | 4202 | // |
75bd7f81 | 4203 | |
4551ea7c | 4204 | Int_t *sindexS = new Int_t[n]; // Temporary array for sorting |
4205 | Int_t *sindexF = new Int_t[2*n]; | |
4206 | for (Int_t i = 0; i < n; i++) { | |
4207 | sindexF[i] = 0; | |
4208 | } | |
4209 | ||
4210 | TMath::Sort(n,inlist,sindexS,down); | |
4211 | ||
4212 | Int_t last = inlist[sindexS[0]]; | |
4213 | Int_t val = last; | |
4214 | sindexF[0] = 1; | |
4215 | sindexF[0+n] = last; | |
4216 | Int_t countPos = 0; | |
4217 | ||
4218 | // Find frequency | |
4219 | for (Int_t i = 1; i < n; i++) { | |
69b55c55 | 4220 | val = inlist[sindexS[i]]; |
4551ea7c | 4221 | if (last == val) { |
4222 | sindexF[countPos]++; | |
4223 | } | |
4224 | else { | |
69b55c55 | 4225 | countPos++; |
4226 | sindexF[countPos+n] = val; | |
4227 | sindexF[countPos]++; | |
4551ea7c | 4228 | last = val; |
69b55c55 | 4229 | } |
4230 | } | |
4551ea7c | 4231 | if (last == val) { |
4232 | countPos++; | |
4233 | } | |
4234 | ||
4235 | // Sort according frequency | |
4236 | TMath::Sort(countPos,sindexF,sindexS,kTRUE); | |
4237 | ||
4238 | for (Int_t i = 0; i < countPos; i++) { | |
69b55c55 | 4239 | outlist[2*i ] = sindexF[sindexS[i]+n]; |
4240 | outlist[2*i+1] = sindexF[sindexS[i]]; | |
4241 | } | |
4551ea7c | 4242 | |
69b55c55 | 4243 | delete [] sindexS; |
4244 | delete [] sindexF; | |
4245 | ||
4246 | return countPos; | |
75bd7f81 | 4247 | |
69b55c55 | 4248 | } |
4249 | ||
75bd7f81 | 4250 | //_____________________________________________________________________________ |
4551ea7c | 4251 | AliTRDtrack *AliTRDtracker::RegisterSeed(AliTRDseed *seeds, Double_t *params) |
69b55c55 | 4252 | { |
4253 | // | |
75bd7f81 | 4254 | // Register a seed |
69b55c55 | 4255 | // |
4551ea7c | 4256 | |
4257 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4258 | Double_t shift = AliTRDgeometry::GetAlpha()/2.0; | |
69b55c55 | 4259 | Double_t c[15]; |
4551ea7c | 4260 | |
4261 | c[ 0] = 0.2; | |
4262 | c[ 1] = 0.0; c[ 2] = 2.0; | |
4263 | c[ 3] = 0.0; c[ 4] = 0.0; c[ 5] = 0.02; | |
4264 | c[ 6] = 0.0; c[ 7] = 0.0; c[ 8] = 0.0; c[ 9] = 0.1; | |
4265 | c[10] = 0.0; c[11] = 0.0; c[12] = 0.0; c[13] = 0.0; c[14] = params[5]*params[5]*0.01; | |
4266 | ||
4267 | Int_t index = 0; | |
4268 | AliTRDcluster *cl = 0; | |
4269 | ||
4270 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { | |
4271 | if (seeds[ilayer].IsOK()) { | |
4272 | for (Int_t itime = 22; itime > 0; itime--) { | |
ca1e1e5b | 4273 | if (seeds[ilayer].GetIndexes(itime) > 0) { |
4274 | index = seeds[ilayer].GetIndexes(itime); | |
4275 | cl = seeds[ilayer].GetClusters(itime); | |
69b55c55 | 4276 | break; |
4277 | } | |
4278 | } | |
4279 | } | |
4551ea7c | 4280 | if (index > 0) { |
4281 | break; | |
4282 | } | |
69b55c55 | 4283 | } |
4551ea7c | 4284 | if (cl == 0) { |
4285 | return 0; | |
4286 | } | |
4287 | ||
4288 | AliTRDtrack *track = new AliTRDtrack(cl | |
4289 | ,index | |
4290 | ,¶ms[1] | |
4291 | ,c | |
4292 | ,params[0] | |
4293 | ,params[6]*alpha+shift); | |
4294 | track->PropagateTo(params[0]-5.0); | |
69b55c55 | 4295 | track->ResetCovariance(1); |
4551ea7c | 4296 | |
4297 | Int_t rc = FollowBackProlongation(*track); | |
4298 | if (rc < 30) { | |
69b55c55 | 4299 | delete track; |
4551ea7c | 4300 | track = 0; |
4301 | } | |
4302 | else { | |
69b55c55 | 4303 | track->CookdEdx(); |
4304 | CookdEdxTimBin(*track); | |
4551ea7c | 4305 | CookLabel(track,0.9); |
69b55c55 | 4306 | } |
69b55c55 | 4307 | |
75bd7f81 | 4308 | return track; |
7e448bcc | 4309 | } |
4310 | ||
4311 | ////////////////////////////////////////////////////////////////////////////////////////// | |
69b55c55 | 4312 | |
7e448bcc | 4313 | void AliTRDtracker::InitLogHists() { |
4314 | ||
4315 | fHBackfit = new TH1D("logTRD_backfit", "", 40, -0.5, 39.5); | |
4316 | fHRefit = new TH1D("logTRD_refit", "", 40, -0.5, 39.5); | |
4317 | fHClSearch = new TH1D("logTRD_clSearch", "", 60, -0.5, 59.5); | |
4318 | ||
4319 | fHX = new TH1D("logTRD_X", ";x (cm)", 200, 50, 400); | |
4320 | fHNCl = new TH1D("logTRD_ncl", "", 40, -0.5, 39.5); | |
4321 | fHNClTrack = new TH1D("logTRD_nclTrack", "", 180, -0.5, 179.5); | |
4322 | ||
4323 | fHMinYPos = new TH1D("logTRD_minYPos", ";#delta Y (cm)", 400, -6, 6); | |
4324 | fHMinYNeg = new TH1D("logTRD_minYNeg", ";#delta Y (cm)", 400, -6, 6); | |
4325 | fHMinZ = new TH1D("logTRD_minZ", ";#delta Z (cm)", 400, -20, 20); | |
4326 | fHMinD = new TH2D("logTRD_minD", ";#delta Y (cm);#delta Z (cm)", 100, -6, 6, 100, -50, 50); | |
4327 | ||
4328 | fHDeltaX = new TH1D("logTRD_deltaX", ";#delta X (cm)", 100, -5, 5); | |
4329 | fHXCl = new TH1D("logTRD_xCl", ";cluster x position (cm)", 1000, 280, 380); | |
4330 | ||
4331 | const char *nameFindCl[4] = {"logTRD_clY", "logTRD_clZ", "logTRD_clB", "logTRD_clG"}; | |
4332 | ||
4333 | for(int i=0; i<4; i++) { | |
4334 | fHFindCl[i] = new TH1D(nameFindCl[i], "", 30, -0.5, 29.5); | |
4335 | } | |
69b55c55 | 4336 | } |
7e448bcc | 4337 | |
4338 | ////////////////////////////////////////////////////////////////////////////////////////// | |
4339 | ||
4340 | void AliTRDtracker::SaveLogHists() { | |
4341 | ||
4342 | TDirectory *sav = gDirectory; | |
4343 | TFile *logFile = 0; | |
4344 | ||
4345 | TSeqCollection *col = gROOT->GetListOfFiles(); | |
4346 | int N = col->GetEntries(); | |
4347 | for(int i=0; i<N; i++) { | |
4348 | logFile = (TFile*)col->At(i); | |
4349 | if (strstr(logFile->GetName(), "AliESDs.root")) break; | |
4350 | } | |
4351 | ||
4352 | logFile->cd(); | |
4353 | fHBackfit->Write(fHBackfit->GetName(), TObject::kOverwrite); | |
4354 | fHRefit->Write(fHRefit->GetName(), TObject::kOverwrite); | |
4355 | fHClSearch->Write(fHClSearch->GetName(), TObject::kOverwrite); | |
4356 | fHX->Write(fHX->GetName(), TObject::kOverwrite); | |
4357 | fHNCl->Write(fHNCl->GetName(), TObject::kOverwrite); | |
4358 | fHNClTrack->Write(fHNClTrack->GetName(), TObject::kOverwrite); | |
4359 | ||
4360 | fHMinYPos->Write(fHMinYPos->GetName(), TObject::kOverwrite); | |
4361 | fHMinYNeg->Write(fHMinYNeg->GetName(), TObject::kOverwrite); | |
4362 | fHMinD->Write(fHMinD->GetName(), TObject::kOverwrite); | |
4363 | fHMinZ->Write(fHMinZ->GetName(), TObject::kOverwrite); | |
4364 | ||
4365 | fHDeltaX->Write(fHDeltaX->GetName(), TObject::kOverwrite); | |
4366 | fHXCl->Write(fHXCl->GetName(), TObject::kOverwrite); | |
4367 | ||
4368 | ||
4369 | for(int i=0; i<4; i++) | |
4370 | fHFindCl[i]->Write(fHFindCl[i]->GetName(), TObject::kOverwrite); | |
4371 | ||
4372 | logFile->Flush(); | |
4373 | ||
4374 | sav->cd(); | |
4375 | } | |
4376 | ||
4377 | ////////////////////////////////////////////////////////////////////////////////////////// |