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46d29e70 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
0fa7dfa7 | 16 | /* $Id$ */ |
bbf92647 | 17 | |
029cd327 | 18 | /////////////////////////////////////////////////////////////////////////////// |
19 | // // | |
c6f438c0 | 20 | // The standard TRD tracker // |
21 | // Based on Kalman filltering approach // | |
029cd327 | 22 | // // |
4551ea7c | 23 | // Authors: // |
24 | // M. Ivanov (Marian.Ivanov@cern.ch) // | |
25 | // Y. Belikov (Jouri.Belikov@cern.ch) // | |
26 | // // | |
029cd327 | 27 | /////////////////////////////////////////////////////////////////////////////// |
28 | ||
7e448bcc | 29 | |
a2cb5b3d | 30 | #include <Riostream.h> |
46d29e70 | 31 | #include <TBranch.h> |
a1e17193 | 32 | #include <TFile.h> |
4551ea7c | 33 | #include <TGraph.h> |
7e448bcc | 34 | #include <TH1D.h> |
35 | #include <TH2D.h> | |
a1e17193 | 36 | #include <TLinearFitter.h> |
37 | #include <TObjArray.h> | |
38 | #include <TROOT.h> | |
39 | #include <TTree.h> | |
40 | #include <TTreeStream.h> | |
4551ea7c | 41 | |
42 | #include "AliESD.h" | |
43 | #include "AliAlignObj.h" | |
44 | #include "AliRieman.h" | |
45 | #include "AliTrackPointArray.h" | |
46d29e70 | 46 | |
46d29e70 | 47 | #include "AliTRDgeometry.h" |
a5cadd36 | 48 | #include "AliTRDpadPlane.h" |
0b2318ec | 49 | #include "AliTRDgeometry.h" |
46d29e70 | 50 | #include "AliTRDcluster.h" |
51 | #include "AliTRDtrack.h" | |
75bd7f81 | 52 | #include "AliTRDseed.h" |
3551db50 | 53 | #include "AliTRDcalibDB.h" |
54 | #include "AliTRDCommonParam.h" | |
46d29e70 | 55 | #include "AliTRDtracker.h" |
7b580082 | 56 | #include "AliTRDReconstructor.h" |
082a2283 | 57 | #include "AliTRDCalibraFillHisto.h" |
58 | ||
7e448bcc | 59 | ClassImp(AliTRDtracker) |
46d29e70 | 60 | |
7e448bcc | 61 | const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; |
62 | const Float_t AliTRDtracker::fgkLabelFraction = 0.8; // ?? | |
63 | const Double_t AliTRDtracker::fgkMaxChi2 = 12.0; | |
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 | //_____________________________________________________________________________ | |
145 | AliTRDtracker::AliTRDtracker(const TFile *geomfile) | |
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; |
176 | TFile *in = (TFile *) geomfile; | |
177 | ||
5443e65e | 178 | if (!in->IsOpen()) { |
4551ea7c | 179 | AliWarning("geometry file is not open!\n"); |
180 | AliWarning("FULL TRD geometry and DEFAULT TRD parameter will be used\n"); | |
5443e65e | 181 | } |
182 | else { | |
183 | in->cd(); | |
4551ea7c | 184 | fGeom = (AliTRDgeometry *) in->Get("TRDgeometry"); |
5443e65e | 185 | } |
46d29e70 | 186 | |
4551ea7c | 187 | if (!fGeom) { |
188 | AliWarning("Cannot find TRD geometry!\n"); | |
0b2318ec | 189 | fGeom = new AliTRDgeometry(); |
c630aafd | 190 | } |
c6f438c0 | 191 | fGeom->ReadGeoMatrices(); |
c630aafd | 192 | |
5443e65e | 193 | savedir->cd(); |
46d29e70 | 194 | |
4551ea7c | 195 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
439c63c8 | 196 | Int_t trS = geomS; |
4551ea7c | 197 | fTrSec[trS] = new AliTRDtrackingSector(fGeom,geomS); |
198 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
199 | fHoles[icham][trS] = fGeom->IsHole(0,icham,geomS); | |
3c625a9b | 200 | } |
5443e65e | 201 | } |
4551ea7c | 202 | |
3551db50 | 203 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); |
7ad19338 | 204 | Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle()); |
4551ea7c | 205 | if (tiltAngle < 0.1) { |
b8dc2353 | 206 | fNoTilt = kTRUE; |
207 | } | |
208 | ||
fc88348b | 209 | if (!AliTRDcalibDB::Instance()) { |
210 | AliFatal("Could not get calibration object"); | |
211 | } | |
212 | fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); | |
46d29e70 | 213 | |
4551ea7c | 214 | fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); |
0a29d0f1 | 215 | |
9c9d2487 | 216 | savedir->cd(); |
7e448bcc | 217 | |
218 | InitLogHists(); | |
75bd7f81 | 219 | |
5443e65e | 220 | } |
46d29e70 | 221 | |
75bd7f81 | 222 | //_____________________________________________________________________________ |
5443e65e | 223 | AliTRDtracker::~AliTRDtracker() |
46d29e70 | 224 | { |
029cd327 | 225 | // |
226 | // Destructor of AliTRDtracker | |
227 | // | |
228 | ||
89f05372 | 229 | if (fClusters) { |
230 | fClusters->Delete(); | |
231 | delete fClusters; | |
232 | } | |
4551ea7c | 233 | |
89f05372 | 234 | if (fTracks) { |
235 | fTracks->Delete(); | |
236 | delete fTracks; | |
237 | } | |
4551ea7c | 238 | |
89f05372 | 239 | if (fSeeds) { |
240 | fSeeds->Delete(); | |
241 | delete fSeeds; | |
242 | } | |
4551ea7c | 243 | |
5443e65e | 244 | delete fGeom; |
0a29d0f1 | 245 | |
4551ea7c | 246 | for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { |
029cd327 | 247 | delete fTrSec[geomS]; |
5443e65e | 248 | } |
4551ea7c | 249 | |
7ad19338 | 250 | if (fDebugStreamer) { |
7ad19338 | 251 | delete fDebugStreamer; |
252 | } | |
9c9d2487 | 253 | |
75bd7f81 | 254 | } |
59393e34 | 255 | |
75bd7f81 | 256 | //_____________________________________________________________________________ |
257 | Int_t AliTRDtracker::LocalToGlobalID(Int_t lid) | |
258 | { | |
59393e34 | 259 | // |
75bd7f81 | 260 | // Transform internal TRD ID to global detector ID |
59393e34 | 261 | // |
75bd7f81 | 262 | |
4551ea7c | 263 | Int_t isector = fGeom->GetSector(lid); |
264 | Int_t ichamber = fGeom->GetChamber(lid); | |
265 | Int_t iplan = fGeom->GetPlane(lid); | |
266 | ||
59393e34 | 267 | AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; |
268 | switch (iplan) { | |
269 | case 0: | |
270 | iLayer = AliAlignObj::kTRD1; | |
271 | break; | |
272 | case 1: | |
273 | iLayer = AliAlignObj::kTRD2; | |
274 | break; | |
275 | case 2: | |
276 | iLayer = AliAlignObj::kTRD3; | |
277 | break; | |
278 | case 3: | |
279 | iLayer = AliAlignObj::kTRD4; | |
280 | break; | |
281 | case 4: | |
282 | iLayer = AliAlignObj::kTRD5; | |
283 | break; | |
284 | case 5: | |
285 | iLayer = AliAlignObj::kTRD6; | |
286 | break; | |
287 | }; | |
4551ea7c | 288 | |
289 | Int_t modId = isector * fGeom->Ncham() + ichamber; | |
59393e34 | 290 | UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); |
75bd7f81 | 291 | |
59393e34 | 292 | return volid; |
75bd7f81 | 293 | |
59393e34 | 294 | } |
295 | ||
75bd7f81 | 296 | //_____________________________________________________________________________ |
297 | Int_t AliTRDtracker::GlobalToLocalID(Int_t gid) | |
298 | { | |
59393e34 | 299 | // |
75bd7f81 | 300 | // Transform global detector ID to local detector ID |
59393e34 | 301 | // |
75bd7f81 | 302 | |
4551ea7c | 303 | Int_t modId = 0; |
304 | AliAlignObj::ELayerID layerId = AliAlignObj::VolUIDToLayer(gid,modId); | |
305 | ||
306 | Int_t isector = modId / fGeom->Ncham(); | |
307 | Int_t ichamber = modId % fGeom->Ncham(); | |
308 | Int_t iLayer = -1; | |
309 | ||
59393e34 | 310 | switch (layerId) { |
311 | case AliAlignObj::kTRD1: | |
6c94f330 | 312 | iLayer = 0; |
59393e34 | 313 | break; |
314 | case AliAlignObj::kTRD2: | |
6c94f330 | 315 | iLayer = 1; |
59393e34 | 316 | break; |
317 | case AliAlignObj::kTRD3: | |
6c94f330 | 318 | iLayer = 2; |
59393e34 | 319 | break; |
320 | case AliAlignObj::kTRD4: | |
6c94f330 | 321 | iLayer = 3; |
59393e34 | 322 | break; |
323 | case AliAlignObj::kTRD5: | |
6c94f330 | 324 | iLayer = 4; |
59393e34 | 325 | break; |
326 | case AliAlignObj::kTRD6: | |
6c94f330 | 327 | iLayer = 5; |
59393e34 | 328 | break; |
329 | default: | |
6c94f330 | 330 | iLayer =-1; |
59393e34 | 331 | } |
4551ea7c | 332 | |
333 | if (iLayer < 0) { | |
334 | return -1; | |
335 | } | |
336 | ||
59393e34 | 337 | Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector); |
75bd7f81 | 338 | |
59393e34 | 339 | return lid; |
59393e34 | 340 | |
75bd7f81 | 341 | } |
59393e34 | 342 | |
75bd7f81 | 343 | //_____________________________________________________________________________ |
4551ea7c | 344 | Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 345 | { |
59393e34 | 346 | // |
75bd7f81 | 347 | // Transform something ... whatever ... |
c6f438c0 | 348 | // |
75bd7f81 | 349 | |
33744e5d | 350 | // Magic constants for geo manager transformation |
4551ea7c | 351 | const Double_t kX0shift = 2.52; |
352 | const Double_t kX0shift5 = 3.05; | |
33744e5d | 353 | |
6c94f330 | 354 | // |
33744e5d | 355 | // Apply alignment and calibration to transform cluster |
6c94f330 | 356 | // |
357 | Int_t detector = cluster->GetDetector(); | |
4551ea7c | 358 | Int_t plane = fGeom->GetPlane(cluster->GetDetector()); |
359 | Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
360 | Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
361 | ||
362 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
363 | Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.0); // Drift distance | |
c6f438c0 | 364 | |
59393e34 | 365 | // |
59393e34 | 366 | // ExB correction |
367 | // | |
368 | Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
4e009ce4 | 369 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); |
4551ea7c | 370 | |
371 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); | |
372 | AliTRDpadPlane *padPlane = commonParam->GetPadPlane(plane,chamber); | |
373 | Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); | |
374 | Double_t localPos[3]; | |
375 | Double_t localPosTracker[3]; | |
c6f438c0 | 376 | localPos[0] = -cluster->GetX(); |
4551ea7c | 377 | localPos[1] = cluster->GetY() - driftX * exB; |
378 | localPos[2] = cluster->GetZ() - zshiftIdeal; | |
379 | ||
c6f438c0 | 380 | cluster->SetY(cluster->GetY() - driftX*exB); |
381 | Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
2fa01832 | 382 | cluster->SetX(xplane - cluster->GetX()); |
4551ea7c | 383 | |
2fa01832 | 384 | TGeoHMatrix *matrix = fGeom->GetCorrectionMatrix(cluster->GetDetector()); |
4551ea7c | 385 | if (!matrix) { |
386 | // No matrix found - if somebody used geometry with holes | |
c6f438c0 | 387 | AliError("Invalid Geometry - Default Geometry used\n"); |
388 | return kTRUE; | |
389 | } | |
4551ea7c | 390 | matrix->LocalToMaster(localPos,localPosTracker); |
391 | ||
392 | if (AliTRDReconstructor::StreamLevel() > 1) { | |
393 | (* fDebugStreamer) << "Transform" | |
394 | << "Cl.=" << cluster | |
395 | << "matrix.=" << matrix | |
396 | << "Detector=" << detector | |
397 | << "Sector=" << sector | |
398 | << "Plane=" << plane | |
399 | << "Chamber=" << chamber | |
400 | << "lx0=" << localPosTracker[0] | |
401 | << "ly0=" << localPosTracker[1] | |
402 | << "lz0=" << localPosTracker[2] | |
403 | << "\n"; | |
c6f438c0 | 404 | } |
4551ea7c | 405 | |
406 | if (plane == 5) { | |
2fa01832 | 407 | cluster->SetX(localPosTracker[0]+kX0shift5); |
4551ea7c | 408 | } |
409 | else { | |
c6f438c0 | 410 | cluster->SetX(localPosTracker[0]+kX0shift); |
4551ea7c | 411 | } |
412 | ||
c6f438c0 | 413 | cluster->SetY(localPosTracker[1]); |
414 | cluster->SetZ(localPosTracker[2]); | |
75bd7f81 | 415 | |
59393e34 | 416 | return kTRUE; |
75bd7f81 | 417 | |
59393e34 | 418 | } |
419 | ||
75bd7f81 | 420 | //_____________________________________________________________________________ |
4551ea7c | 421 | // Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) |
75bd7f81 | 422 | //{ |
c6f438c0 | 423 | // // |
4551ea7c | 424 | // // Is this still needed ???? |
c6f438c0 | 425 | // // |
426 | // const Double_t kDriftCorrection = 1.01; // drift coeficient correction | |
427 | // const Double_t kTime0Cor = 0.32; // time0 correction | |
428 | // // | |
429 | // const Double_t kX0shift = 2.52; | |
430 | // const Double_t kX0shift5 = 3.05; | |
431 | ||
432 | // // | |
433 | // // apply alignment and calibration to transform cluster | |
434 | // // | |
435 | // // | |
436 | // Int_t detector = cluster->GetDetector(); | |
437 | // Int_t plane = fGeom->GetPlane(cluster->GetDetector()); | |
438 | // Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); | |
439 | // Int_t sector = fGeom->GetSector(cluster->GetDetector()); | |
440 | ||
441 | // Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
442 | // Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance | |
443 | // // | |
444 | // // ExB correction | |
445 | // // | |
446 | // Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); | |
4e009ce4 | 447 | // Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); |
c6f438c0 | 448 | // // |
449 | ||
450 | // AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance(); | |
451 | // AliTRDpadPlane * padPlane = commonParam->GetPadPlane(plane,chamber); | |
452 | // Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); | |
453 | // Double_t localPos[3], globalPos[3], localPosTracker[3], localPosTracker2[3]; | |
454 | // localPos[2] = -cluster->GetX(); | |
455 | // localPos[0] = cluster->GetY() - driftX*exB; | |
456 | // localPos[1] = cluster->GetZ() -zshiftIdeal; | |
457 | // TGeoHMatrix * matrix = fGeom->GetGeoMatrix(cluster->GetDetector()); | |
458 | // matrix->LocalToMaster(localPos, globalPos); | |
459 | ||
460 | // Double_t sectorAngle = 20.*(sector%18)+10; | |
461 | // TGeoHMatrix rotSector; | |
462 | // rotSector.RotateZ(sectorAngle); | |
463 | // rotSector.LocalToMaster(globalPos, localPosTracker); | |
464 | // // | |
465 | // // | |
466 | // TGeoHMatrix matrix2(*matrix); | |
467 | // matrix2.MultiplyLeft(&rotSector); | |
468 | // matrix2.LocalToMaster(localPos,localPosTracker2); | |
469 | // // | |
470 | // // | |
471 | // // | |
472 | // cluster->SetY(cluster->GetY() - driftX*exB); | |
473 | // Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); | |
474 | // cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor)); | |
475 | // (*fDebugStreamer)<<"Transform"<< | |
476 | // "Cl.="<<cluster<< | |
477 | // "matrix.="<<matrix<< | |
478 | // "matrix2.="<<&matrix2<< | |
479 | // "Detector="<<detector<< | |
480 | // "Sector="<<sector<< | |
481 | // "Plane="<<plane<< | |
482 | // "Chamber="<<chamber<< | |
483 | // "lx0="<<localPosTracker[0]<< | |
484 | // "ly0="<<localPosTracker[1]<< | |
485 | // "lz0="<<localPosTracker[2]<< | |
486 | // "lx2="<<localPosTracker2[0]<< | |
487 | // "ly2="<<localPosTracker2[1]<< | |
488 | // "lz2="<<localPosTracker2[2]<< | |
489 | // "\n"; | |
490 | // // | |
491 | // if (plane==5) | |
492 | // cluster->SetX(localPosTracker[0]+kX0shift5); | |
493 | // else | |
494 | // cluster->SetX(localPosTracker[0]+kX0shift); | |
495 | ||
496 | // cluster->SetY(localPosTracker[1]); | |
497 | // cluster->SetZ(localPosTracker[2]); | |
498 | // return kTRUE; | |
499 | // } | |
500 | ||
75bd7f81 | 501 | //_____________________________________________________________________________ |
502 | Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) | |
503 | { | |
9c9d2487 | 504 | // |
505 | // Rotates the track when necessary | |
506 | // | |
507 | ||
508 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4551ea7c | 509 | Double_t y = track->GetY(); |
510 | Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); | |
9c9d2487 | 511 | |
4551ea7c | 512 | // Is this still needed ???? |
c630aafd | 513 | //Int_t ns = AliTRDgeometry::kNsect; |
9c9d2487 | 514 | //Int_t s=Int_t(track->GetAlpha()/alpha)%ns; |
515 | ||
4551ea7c | 516 | if (y > ymax) { |
9c9d2487 | 517 | //s = (s+1) % ns; |
4551ea7c | 518 | if (!track->Rotate( alpha)) { |
519 | return kFALSE; | |
520 | } | |
521 | } | |
522 | else if (y < -ymax) { | |
9c9d2487 | 523 | //s = (s-1+ns) % ns; |
4551ea7c | 524 | if (!track->Rotate(-alpha)) { |
525 | return kFALSE; | |
526 | } | |
9c9d2487 | 527 | } |
528 | ||
529 | return kTRUE; | |
9c9d2487 | 530 | |
75bd7f81 | 531 | } |
46e2d86c | 532 | |
75bd7f81 | 533 | //_____________________________________________________________________________ |
534 | AliTRDcluster *AliTRDtracker::GetCluster(AliTRDtrack *track, Int_t plane | |
535 | , Int_t timebin, UInt_t &index) | |
536 | { | |
46e2d86c | 537 | // |
75bd7f81 | 538 | // Try to find cluster in the backup list |
46e2d86c | 539 | // |
75bd7f81 | 540 | |
4551ea7c | 541 | AliTRDcluster *cl =0; |
6c94f330 | 542 | Int_t *indexes = track->GetBackupIndexes(); |
4551ea7c | 543 | |
544 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
545 | if (indexes[i] == 0) { | |
546 | break; | |
547 | } | |
548 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
549 | if (!cli) { | |
550 | break; | |
551 | } | |
552 | if (cli->GetLocalTimeBin() != timebin) { | |
553 | continue; | |
554 | } | |
46e2d86c | 555 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 556 | if (iplane == plane) { |
557 | cl = cli; | |
7ad19338 | 558 | index = indexes[i]; |
46e2d86c | 559 | break; |
560 | } | |
561 | } | |
75bd7f81 | 562 | |
46e2d86c | 563 | return cl; |
46e2d86c | 564 | |
75bd7f81 | 565 | } |
3c625a9b | 566 | |
75bd7f81 | 567 | //_____________________________________________________________________________ |
4551ea7c | 568 | Int_t AliTRDtracker::GetLastPlane(AliTRDtrack *track) |
75bd7f81 | 569 | { |
3c625a9b | 570 | // |
75bd7f81 | 571 | // Return last updated plane |
572 | // | |
573 | ||
4551ea7c | 574 | Int_t lastplane = 0; |
575 | Int_t *indexes = track->GetBackupIndexes(); | |
576 | ||
577 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { | |
578 | AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); | |
579 | if (!cli) { | |
580 | break; | |
581 | } | |
3c625a9b | 582 | Int_t iplane = fGeom->GetPlane(cli->GetDetector()); |
4551ea7c | 583 | if (iplane > lastplane) { |
3c625a9b | 584 | lastplane = iplane; |
585 | } | |
586 | } | |
75bd7f81 | 587 | |
3c625a9b | 588 | return lastplane; |
75bd7f81 | 589 | |
3c625a9b | 590 | } |
75bd7f81 | 591 | |
592 | //_____________________________________________________________________________ | |
4551ea7c | 593 | Int_t AliTRDtracker::Clusters2Tracks(AliESD *event) |
c630aafd | 594 | { |
595 | // | |
596 | // Finds tracks within the TRD. The ESD event is expected to contain seeds | |
597 | // at the outer part of the TRD. The seeds | |
598 | // are found within the TRD if fAddTRDseeds is TRUE. | |
599 | // The tracks are propagated to the innermost time bin | |
600 | // of the TRD and the ESD event is updated | |
601 | // | |
602 | ||
4551ea7c | 603 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
029cd327 | 604 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 605 | Int_t nseed = 0; |
606 | Int_t found = 0; | |
607 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
c630aafd | 608 | |
609 | Int_t n = event->GetNumberOfTracks(); | |
4551ea7c | 610 | for (Int_t i = 0; i < n; i++) { |
611 | ||
612 | AliESDtrack *seed = event->GetTrack(i); | |
613 | ULong_t status = seed->GetStatus(); | |
614 | if ((status & AliESDtrack::kTRDout) == 0) { | |
615 | continue; | |
616 | } | |
617 | if ((status & AliESDtrack::kTRDin) != 0) { | |
618 | continue; | |
619 | } | |
c630aafd | 620 | nseed++; |
7ad19338 | 621 | |
4551ea7c | 622 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); |
46e2d86c | 623 | //seed2->ResetCovariance(); |
4551ea7c | 624 | AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); |
625 | AliTRDtrack &t = *pt; | |
7b580082 | 626 | FollowProlongation(t); |
c630aafd | 627 | if (t.GetNumberOfClusters() >= foundMin) { |
628 | UseClusters(&t); | |
4551ea7c | 629 | CookLabel(pt,1 - fgkLabelFraction); |
630 | //t.CookdEdx(); | |
c630aafd | 631 | } |
632 | found++; | |
c630aafd | 633 | |
4551ea7c | 634 | Double_t xTPC = 250.0; |
59393e34 | 635 | if (PropagateToX(t,xTPC,fgkMaxStep)) { |
c630aafd | 636 | seed->UpdateTrackParams(pt, AliESDtrack::kTRDin); |
637 | } | |
638 | delete seed2; | |
639 | delete pt; | |
4551ea7c | 640 | |
641 | } | |
c630aafd | 642 | |
33744e5d | 643 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
644 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
645 | AliInfo(Form("Total number of found tracks: %d",found)); | |
c630aafd | 646 | |
647 | return 0; | |
75bd7f81 | 648 | |
c630aafd | 649 | } |
5443e65e | 650 | |
c630aafd | 651 | //_____________________________________________________________________________ |
4551ea7c | 652 | Int_t AliTRDtracker::PropagateBack(AliESD *event) |
75bd7f81 | 653 | { |
c630aafd | 654 | // |
655 | // Gets seeds from ESD event. The seeds are AliTPCtrack's found and | |
656 | // backpropagated by the TPC tracker. Each seed is first propagated | |
657 | // to the TRD, and then its prolongation is searched in the TRD. | |
658 | // If sufficiently long continuation of the track is found in the TRD | |
659 | // the track is updated, otherwise it's stored as originaly defined | |
660 | // by the TPC tracker. | |
661 | // | |
662 | ||
7e448bcc | 663 | Int_t found = 0; // number of tracks found |
4551ea7c | 664 | Float_t foundMin = 20.0; |
665 | Int_t n = event->GetNumberOfTracks(); | |
666 | ||
667 | // Sort tracks | |
668 | Float_t *quality = new Float_t[n]; | |
669 | Int_t *index = new Int_t[n]; | |
670 | for (Int_t i = 0; i < n; i++) { | |
671 | AliESDtrack *seed = event->GetTrack(i); | |
4f1c04d3 | 672 | Double_t covariance[15]; |
673 | seed->GetExternalCovariance(covariance); | |
674 | quality[i] = covariance[0]+covariance[2]; | |
7e448bcc | 675 | //quality[i] = covariance[0]; |
4f1c04d3 | 676 | } |
677 | TMath::Sort(n,quality,index,kFALSE); | |
4f1c04d3 | 678 | |
4551ea7c | 679 | for (Int_t i = 0; i < n; i++) { |
680 | ||
681 | //AliESDtrack *seed = event->GetTrack(i); | |
682 | AliESDtrack *seed = event->GetTrack(index[i]); | |
7e448bcc | 683 | fHBackfit->Fill(0); |
c630aafd | 684 | |
4551ea7c | 685 | ULong_t status = seed->GetStatus(); |
686 | if ((status & AliESDtrack::kTPCout) == 0) { | |
7e448bcc | 687 | fHBackfit->Fill(1); |
4551ea7c | 688 | continue; |
689 | } | |
7e448bcc | 690 | |
4551ea7c | 691 | if ((status & AliESDtrack::kTRDout) != 0) { |
7e448bcc | 692 | fHBackfit->Fill(2); |
4551ea7c | 693 | continue; |
694 | } | |
695 | ||
696 | Int_t lbl = seed->GetLabel(); | |
c630aafd | 697 | AliTRDtrack *track = new AliTRDtrack(*seed); |
698 | track->SetSeedLabel(lbl); | |
4551ea7c | 699 | seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup |
c630aafd | 700 | fNseeds++; |
4551ea7c | 701 | Float_t p4 = track->GetC(); |
f6625211 | 702 | Int_t expectedClr = FollowBackProlongation(*track); |
7e448bcc | 703 | |
704 | fHBackfit->Fill(3); | |
705 | fHX->Fill(track->GetX()); | |
706 | ||
707 | ||
708 | // store the last measurement | |
709 | /* | |
710 | fHNClTrack->Fill(track->GetNumberOfClusters()); | |
711 | if (track->GetNumberOfClusters() >= foundMin) { | |
712 | ||
713 | fHBackfit->Fill(4); | |
714 | track->CookdEdx(); | |
715 | CookdEdxTimBin(*track); | |
716 | CookLabel(track,1 - fgkLabelFraction); | |
717 | if (track->GetBackupTrack()) { | |
718 | //fHBackfit->Fill(5); | |
719 | UseClusters(track->GetBackupTrack()); | |
720 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
721 | } | |
722 | } | |
723 | */ | |
724 | ||
725 | /**/ | |
726 | // inter-tracks competition ??? | |
4551ea7c | 727 | if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) || |
728 | (TMath::Abs(track->GetPt()) > 0.8)) { | |
7e448bcc | 729 | |
730 | fHBackfit->Fill(4); | |
731 | ||
4f1c04d3 | 732 | // |
4551ea7c | 733 | // Make backup for back propagation |
4f1c04d3 | 734 | // |
7e448bcc | 735 | |
4f1c04d3 | 736 | Int_t foundClr = track->GetNumberOfClusters(); |
737 | if (foundClr >= foundMin) { | |
738 | track->CookdEdx(); | |
8979685e | 739 | CookdEdxTimBin(*track); |
4551ea7c | 740 | CookLabel(track,1 - fgkLabelFraction); |
741 | if (track->GetBackupTrack()) { | |
742 | UseClusters(track->GetBackupTrack()); | |
743 | } | |
744 | ||
745 | // Sign only gold tracks | |
746 | if (track->GetChi2() / track->GetNumberOfClusters() < 4) { | |
7e448bcc | 747 | if ((seed->GetKinkIndex(0) == 0) && |
4551ea7c | 748 | (TMath::Abs(track->GetPt()) < 1.5)) { |
749 | UseClusters(track); | |
750 | } | |
4f1c04d3 | 751 | } |
752 | Bool_t isGold = kFALSE; | |
753 | ||
4551ea7c | 754 | // Full gold track |
755 | if (track->GetChi2() / track->GetNumberOfClusters() < 5) { | |
756 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
757 | if (track->GetBackupTrack()) { | |
758 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
7e448bcc | 759 | |
4551ea7c | 760 | } |
4f1c04d3 | 761 | isGold = kTRUE; |
7e448bcc | 762 | //fHBackfit->Fill() |
4f1c04d3 | 763 | } |
4551ea7c | 764 | |
765 | // Almost gold track | |
766 | if ((!isGold) && | |
767 | (track->GetNCross() == 0) && | |
768 | (track->GetChi2() / track->GetNumberOfClusters() < 7)) { | |
769 | //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); | |
770 | if (track->GetBackupTrack()) { | |
771 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); | |
772 | } | |
f4e9508c | 773 | isGold = kTRUE; |
774 | } | |
4551ea7c | 775 | |
776 | if ((!isGold) && | |
777 | (track->GetBackupTrack())) { | |
7e448bcc | 778 | if ((track->GetBackupTrack()->GetNumberOfClusters() > foundMin) && |
779 | ((track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1)) < 7)) { | |
4551ea7c | 780 | seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); |
4f1c04d3 | 781 | isGold = kTRUE; |
782 | } | |
783 | } | |
4551ea7c | 784 | |
7e448bcc | 785 | if ((track->StatusForTOF() > 0) && |
786 | (track->GetNCross() == 0) && | |
27eaf44b | 787 | (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) { |
6c94f330 | 788 | //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); |
7ad19338 | 789 | } |
4551ea7c | 790 | |
16d9fbba | 791 | } |
c630aafd | 792 | } |
7e448bcc | 793 | /**/ |
4551ea7c | 794 | |
7e448bcc | 795 | /**/ |
8979685e | 796 | // Debug part of tracking |
4551ea7c | 797 | TTreeSRedirector &cstream = *fDebugStreamer; |
31fd97b2 | 798 | 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 | 799 | if (AliTRDReconstructor::StreamLevel() > 0) { |
800 | if (track->GetBackupTrack()) { | |
801 | cstream << "Tracks" | |
31fd97b2 | 802 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 803 | << "ESD.=" << seed |
804 | << "trd.=" << track | |
805 | << "trdback.=" << track->GetBackupTrack() | |
806 | << "\n"; | |
807 | } | |
808 | else { | |
809 | cstream << "Tracks" | |
31fd97b2 | 810 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 811 | << "ESD.=" << seed |
812 | << "trd.=" << track | |
813 | << "trdback.=" << track | |
814 | << "\n"; | |
d337ef8d | 815 | } |
8979685e | 816 | } |
7e448bcc | 817 | /**/ |
4551ea7c | 818 | |
819 | // Propagation to the TOF (I.Belikov) | |
820 | if (track->GetStop() == kFALSE) { | |
7e448bcc | 821 | fHBackfit->Fill(5); |
822 | ||
4551ea7c | 823 | Double_t xtof = 371.0; |
7e448bcc | 824 | Double_t xTOF0 = 370.0; |
825 | ||
4551ea7c | 826 | Double_t c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); |
827 | if (TMath::Abs(c2) >= 0.99) { | |
7e448bcc | 828 | |
829 | fHBackfit->Fill(6); | |
c5a8e3df | 830 | delete track; |
831 | continue; | |
832 | } | |
7e448bcc | 833 | |
59393e34 | 834 | PropagateToX(*track,xTOF0,fgkMaxStep); |
4551ea7c | 835 | |
836 | // Energy losses taken to the account - check one more time | |
837 | c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); | |
838 | if (TMath::Abs(c2) >= 0.99) { | |
7e448bcc | 839 | |
840 | fHBackfit->Fill(7); | |
4f1c04d3 | 841 | delete track; |
842 | continue; | |
843 | } | |
7e448bcc | 844 | |
845 | //if (!PropagateToX(*track,xTOF0,fgkMaxStep)) { | |
846 | // fHBackfit->Fill(7); | |
847 | //delete track; | |
848 | // continue; | |
849 | //} | |
4f1c04d3 | 850 | |
4551ea7c | 851 | Double_t ymax = xtof * TMath::Tan(0.5 * AliTRDgeometry::GetAlpha()); |
852 | Double_t y; | |
853 | track->GetYAt(xtof,GetBz(),y); | |
7e448bcc | 854 | if (y > ymax) { |
4551ea7c | 855 | if (!track->Rotate( AliTRDgeometry::GetAlpha())) { |
7e448bcc | 856 | fHBackfit->Fill(8); |
7ac6fa52 | 857 | delete track; |
7bed16a7 | 858 | continue; |
7ac6fa52 | 859 | } |
4551ea7c | 860 | } |
861 | else if (y < -ymax) { | |
7ac6fa52 | 862 | if (!track->Rotate(-AliTRDgeometry::GetAlpha())) { |
7e448bcc | 863 | fHBackfit->Fill(9); |
7ac6fa52 | 864 | delete track; |
7bed16a7 | 865 | continue; |
7ac6fa52 | 866 | } |
3c625a9b | 867 | } |
7e448bcc | 868 | |
3c625a9b | 869 | if (track->PropagateTo(xtof)) { |
4551ea7c | 870 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); |
7e448bcc | 871 | fHBackfit->Fill(10); |
872 | ||
4551ea7c | 873 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
874 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 875 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
876 | } | |
877 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 878 | } |
4551ea7c | 879 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
880 | if (track->GetNumberOfClusters() > foundMin) { | |
7e448bcc | 881 | fHBackfit->Fill(11); |
4551ea7c | 882 | found++; |
883 | } | |
3c625a9b | 884 | } |
4551ea7c | 885 | |
886 | } | |
887 | else { | |
7e448bcc | 888 | |
889 | fHBackfit->Fill(12); | |
890 | ||
4551ea7c | 891 | if ((track->GetNumberOfClusters() > 15) && |
892 | (track->GetNumberOfClusters() > 0.5*expectedClr)) { | |
7e448bcc | 893 | |
4551ea7c | 894 | seed->UpdateTrackParams(track,AliESDtrack::kTRDout); |
7e448bcc | 895 | fHBackfit->Fill(13); |
896 | ||
16d9fbba | 897 | //seed->SetStatus(AliESDtrack::kTRDStop); |
4551ea7c | 898 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
899 | for (Int_t j = 0; j <AliESDtrack::kNSlice; j++) { | |
6d45eaef | 900 | seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); |
901 | } | |
902 | seed->SetTRDTimBin(track->GetPIDTimBin(i),i); | |
eab5961e | 903 | } |
7ad19338 | 904 | //seed->SetTRDtrack(new AliTRDtrack(*track)); |
3c625a9b | 905 | found++; |
906 | } | |
4551ea7c | 907 | |
1e9bb598 | 908 | } |
4551ea7c | 909 | |
7ad19338 | 910 | seed->SetTRDQuality(track->StatusForTOF()); |
27eaf44b | 911 | seed->SetTRDBudget(track->GetBudget(0)); |
8979685e | 912 | |
7e448bcc | 913 | fHBackfit->Fill(14); |
d9b8978b | 914 | delete track; |
c630aafd | 915 | } |
ad670fba | 916 | |
33744e5d | 917 | AliInfo(Form("Number of seeds: %d",fNseeds)); |
918 | AliInfo(Form("Number of back propagated TRD tracks: %d",found)); | |
6c94f330 | 919 | |
33744e5d | 920 | // New seeding |
921 | if (AliTRDReconstructor::SeedingOn()) { | |
4551ea7c | 922 | MakeSeedsMI(3,5,event); |
33744e5d | 923 | } |
924 | ||
925 | fSeeds->Clear(); | |
4551ea7c | 926 | fNseeds = 0; |
7ad19338 | 927 | |
4f1c04d3 | 928 | delete [] index; |
929 | delete [] quality; | |
930 | ||
7e448bcc | 931 | SaveLogHists(); |
932 | ||
1e9bb598 | 933 | return 0; |
1e9bb598 | 934 | } |
935 | ||
936 | //_____________________________________________________________________________ | |
4551ea7c | 937 | Int_t AliTRDtracker::RefitInward(AliESD *event) |
1e9bb598 | 938 | { |
939 | // | |
940 | // Refits tracks within the TRD. The ESD event is expected to contain seeds | |
941 | // at the outer part of the TRD. | |
942 | // The tracks are propagated to the innermost time bin | |
943 | // of the TRD and the ESD event is updated | |
944 | // Origin: Thomas KUHR (Thomas.Kuhr@cern.ch) | |
945 | // | |
946 | ||
4551ea7c | 947 | Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); |
1e9bb598 | 948 | Float_t foundMin = fgkMinClustersInTrack * timeBins; |
4551ea7c | 949 | Int_t nseed = 0; |
950 | Int_t found = 0; | |
951 | //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); | |
4f1c04d3 | 952 | AliTRDtrack seed2; |
6c94f330 | 953 | |
1e9bb598 | 954 | Int_t n = event->GetNumberOfTracks(); |
4551ea7c | 955 | for (Int_t i = 0; i < n; i++) { |
956 | ||
957 | AliESDtrack *seed = event->GetTrack(i); | |
958 | new (&seed2) AliTRDtrack(*seed); | |
7e448bcc | 959 | fHRefit->Fill(0); |
960 | ||
4551ea7c | 961 | if (seed2.GetX() < 270.0) { |
962 | seed->UpdateTrackParams(&seed2,AliESDtrack::kTRDbackup); // Backup TPC track - only update | |
7e448bcc | 963 | fHRefit->Fill(1); |
f4e9508c | 964 | continue; |
965 | } | |
966 | ||
4551ea7c | 967 | ULong_t status = seed->GetStatus(); |
968 | if ((status & AliESDtrack::kTRDout) == 0) { | |
7e448bcc | 969 | fHRefit->Fill(2); |
0dd7d129 | 970 | continue; |
971 | } | |
4551ea7c | 972 | if ((status & AliESDtrack::kTRDin) != 0) { |
7e448bcc | 973 | fHRefit->Fill(3); |
0dd7d129 | 974 | continue; |
975 | } | |
7e448bcc | 976 | |
6c94f330 | 977 | nseed++; |
7e448bcc | 978 | fHRefit->Fill(4); |
6c94f330 | 979 | |
4551ea7c | 980 | seed2.ResetCovariance(50.0); |
6c94f330 | 981 | |
4f1c04d3 | 982 | AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha()); |
4551ea7c | 983 | Int_t *indexes2 = seed2.GetIndexes(); |
984 | for (Int_t i = 0; i < AliESDtrack::kNPlane;i++) { | |
985 | for (Int_t j = 0; j < AliESDtrack::kNSlice;j++) { | |
6d45eaef | 986 | pt->SetPIDsignals(seed2.GetPIDsignals(i,j),i,j); |
987 | } | |
7ad19338 | 988 | pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i); |
989 | } | |
eab5961e | 990 | |
4551ea7c | 991 | Int_t *indexes3 = pt->GetBackupIndexes(); |
992 | for (Int_t i = 0; i < 200;i++) { | |
993 | if (indexes2[i] == 0) { | |
994 | break; | |
995 | } | |
46e2d86c | 996 | indexes3[i] = indexes2[i]; |
4551ea7c | 997 | } |
998 | ||
46e2d86c | 999 | //AliTRDtrack *pt = seed2; |
4551ea7c | 1000 | AliTRDtrack &t = *pt; |
7b580082 | 1001 | FollowProlongation(t); |
1e9bb598 | 1002 | if (t.GetNumberOfClusters() >= foundMin) { |
4551ea7c | 1003 | //UseClusters(&t); |
6c94f330 | 1004 | //CookLabel(pt, 1-fgkLabelFraction); |
7ad19338 | 1005 | t.CookdEdx(); |
1006 | CookdEdxTimBin(t); | |
1e9bb598 | 1007 | } |
1008 | found++; | |
33744e5d | 1009 | |
4551ea7c | 1010 | Double_t xTPC = 250.0; |
1011 | if (PropagateToX(t,xTPC,fgkMaxStep)) { | |
7e448bcc | 1012 | |
4551ea7c | 1013 | seed->UpdateTrackParams(pt,AliESDtrack::kTRDrefit); |
7e448bcc | 1014 | fHRefit->Fill(5); |
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(pt->GetPIDsignals(i,j),i,j); |
1019 | } | |
7ad19338 | 1020 | seed->SetTRDTimBin(pt->GetPIDTimBin(i),i); |
1021 | } | |
4551ea7c | 1022 | } |
1023 | else { | |
1024 | // If not prolongation to TPC - propagate without update | |
7e448bcc | 1025 | fHRefit->Fill(5); |
4551ea7c | 1026 | AliTRDtrack *seed2 = new AliTRDtrack(*seed); |
1027 | seed2->ResetCovariance(5.0); | |
1028 | AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); | |
7bed16a7 | 1029 | delete seed2; |
59393e34 | 1030 | if (PropagateToX(*pt2,xTPC,fgkMaxStep)) { |
4551ea7c | 1031 | pt2->CookdEdx( ); |
eab5961e | 1032 | CookdEdxTimBin(*pt2); |
4551ea7c | 1033 | seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit); |
7e448bcc | 1034 | fHRefit->Fill(6); |
1035 | ||
4551ea7c | 1036 | for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { |
1037 | for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { | |
6d45eaef | 1038 | seed->SetTRDsignals(pt2->GetPIDsignals(i,j),i,j); |
1039 | } | |
7ad19338 | 1040 | seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i); |
1041 | } | |
eab5961e | 1042 | } |
7bed16a7 | 1043 | delete pt2; |
4551ea7c | 1044 | } |
1045 | ||
1e9bb598 | 1046 | delete pt; |
4551ea7c | 1047 | |
eab5961e | 1048 | } |
1e9bb598 | 1049 | |
33744e5d | 1050 | AliInfo(Form("Number of loaded seeds: %d",nseed)); |
1051 | AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); | |
1e9bb598 | 1052 | |
7e448bcc | 1053 | SaveLogHists(); |
c630aafd | 1054 | return 0; |
c630aafd | 1055 | } |
1056 | ||
75bd7f81 | 1057 | //_____________________________________________________________________________ |
4551ea7c | 1058 | Int_t AliTRDtracker::FollowProlongation(AliTRDtrack &t) |
8979685e | 1059 | { |
75bd7f81 | 1060 | // |
8979685e | 1061 | // Starting from current position on track=t this function tries |
1062 | // to extrapolate the track up to timeBin=0 and to confirm prolongation | |
1063 | // if a close cluster is found. Returns the number of clusters | |
1064 | // expected to be found in sensitive layers | |
1065 | // GeoManager used to estimate mean density | |
75bd7f81 | 1066 | // |
1067 | ||
4551ea7c | 1068 | Int_t sector; |
1069 | Int_t lastplane = GetLastPlane(&t); | |
3551db50 | 1070 | Double_t radLength = 0.0; |
4551ea7c | 1071 | Double_t rho = 0.0; |
1072 | Int_t expectedNumberOfClusters = 0; | |
1073 | ||
1074 | for (Int_t iplane = lastplane; iplane >= 0; iplane--) { | |
1075 | ||
1076 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); | |
1077 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
1078 | ||
8979685e | 1079 | // |
4551ea7c | 1080 | // Propagate track close to the plane if neccessary |
7b580082 | 1081 | // |
1082 | Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX(); | |
4551ea7c | 1083 | if (currentx < (-fgkMaxStep + t.GetX())) { |
1084 | // Propagate closer to chamber - safety space fgkMaxStep | |
1085 | if (!PropagateToX(t,currentx+fgkMaxStep,fgkMaxStep)) { | |
1086 | break; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | if (!AdjustSector(&t)) { | |
1091 | break; | |
8979685e | 1092 | } |
4551ea7c | 1093 | |
59393e34 | 1094 | // |
4551ea7c | 1095 | // Get material budget |
8979685e | 1096 | // |
4551ea7c | 1097 | Double_t xyz0[3]; |
1098 | Double_t xyz1[3]; | |
1099 | Double_t param[7]; | |
1100 | Double_t x; | |
1101 | Double_t y; | |
1102 | Double_t z; | |
1103 | ||
1104 | // Starting global position | |
1105 | t.GetXYZ(xyz0); | |
1106 | // End global position | |
7b580082 | 1107 | x = fTrSec[0]->GetLayer(row0)->GetX(); |
4551ea7c | 1108 | if (!t.GetProlongation(x,y,z)) { |
1109 | break; | |
1110 | } | |
1111 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1112 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1113 | xyz1[2] = z; | |
7b580082 | 1114 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1115 | rho = param[0]; |
1116 | radLength = param[1]; // Get mean propagation parameters | |
1117 | ||
8979685e | 1118 | // |
4551ea7c | 1119 | // Propagate and update |
8979685e | 1120 | // |
8979685e | 1121 | sector = t.GetSector(); |
4551ea7c | 1122 | //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { |
1123 | for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) { | |
1124 | ||
1125 | Int_t ilayer = GetGlobalTimeBin(0,iplane,itime); | |
8979685e | 1126 | expectedNumberOfClusters++; |
27eaf44b | 1127 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1128 | if (t.GetX() > 345.0) { |
27eaf44b | 1129 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1130 | } |
1131 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
7e448bcc | 1132 | AliTRDcluster *cl = 0; |
4551ea7c | 1133 | UInt_t index = 0; |
1134 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1135 | x = timeBin.GetX(); |
4551ea7c | 1136 | |
8979685e | 1137 | if (timeBin) { |
4551ea7c | 1138 | |
1139 | AliTRDcluster *cl0 = timeBin[0]; | |
1140 | if (!cl0) { | |
1141 | // No clusters in given time bin | |
1142 | continue; | |
1143 | } | |
1144 | ||
1145 | Int_t plane = fGeom->GetPlane(cl0->GetDetector()); | |
1146 | if (plane > lastplane) { | |
1147 | continue; | |
1148 | } | |
1149 | ||
8979685e | 1150 | Int_t timebin = cl0->GetLocalTimeBin(); |
4551ea7c | 1151 | AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index); |
1152 | ||
8979685e | 1153 | if (cl2) { |
4551ea7c | 1154 | |
1155 | cl = cl2; | |
33744e5d | 1156 | //Double_t h01 = GetTiltFactor(cl); //I.B's fix |
6c94f330 | 1157 | //maxChi2=t.GetPredictedChi2(cl,h01); |
4551ea7c | 1158 | |
7b580082 | 1159 | } |
8979685e | 1160 | if (cl) { |
4551ea7c | 1161 | |
1162 | //if (cl->GetNPads()<5) | |
59393e34 | 1163 | Double_t dxsample = timeBin.GetdX(); |
1164 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1165 | Double_t h01 = GetTiltFactor(cl); |
1166 | Int_t det = cl->GetDetector(); | |
1167 | Int_t plane = fGeom->GetPlane(det); | |
1168 | if (t.GetX() > 345.0) { | |
27eaf44b | 1169 | t.SetNLast(t.GetNLast() + 1); |
1170 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1171 | } |
4551ea7c | 1172 | |
59393e34 | 1173 | Double_t xcluster = cl->GetX(); |
1174 | t.PropagateTo(xcluster,radLength,rho); | |
6c94f330 | 1175 | |
4551ea7c | 1176 | if (!AdjustSector(&t)) { |
1177 | break; //I.B's fix | |
1178 | } | |
1179 | maxChi2 = t.GetPredictedChi2(cl,h01); | |
6c94f330 | 1180 | |
c2239ca8 | 1181 | if (maxChi2<1e+10) |
1182 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { | |
1183 | // ???? | |
1184 | } | |
4551ea7c | 1185 | |
6c94f330 | 1186 | } |
4551ea7c | 1187 | |
8979685e | 1188 | } |
4551ea7c | 1189 | |
6c94f330 | 1190 | } |
4551ea7c | 1191 | |
8979685e | 1192 | } |
8979685e | 1193 | |
75bd7f81 | 1194 | return expectedNumberOfClusters; |
69b55c55 | 1195 | |
75bd7f81 | 1196 | } |
7b580082 | 1197 | |
75bd7f81 | 1198 | //_____________________________________________________________________________ |
4551ea7c | 1199 | Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack &t) |
8979685e | 1200 | { |
75bd7f81 | 1201 | // |
8979685e | 1202 | // Starting from current radial position of track <t> this function |
1203 | // extrapolates the track up to outer timebin and in the sensitive | |
1204 | // layers confirms prolongation if a close cluster is found. | |
1205 | // Returns the number of clusters expected to be found in sensitive layers | |
1206 | // Use GEO manager for material Description | |
75bd7f81 | 1207 | // |
7e448bcc | 1208 | // return number of assigned clusters ? |
1209 | // | |
1210 | ||
59393e34 | 1211 | |
4551ea7c | 1212 | Int_t sector; |
1213 | Int_t clusters[1000]; | |
6c94f330 | 1214 | Double_t radLength = 0.0; |
4551ea7c | 1215 | Double_t rho = 0.0; |
1216 | Int_t expectedNumberOfClusters = 0; | |
1217 | Float_t ratio0 = 0.0; | |
8979685e | 1218 | AliTRDtracklet tracklet; |
33744e5d | 1219 | |
77566f2a | 1220 | // Calibration fill 2D |
082a2283 | 1221 | AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance(); |
77566f2a | 1222 | if (!calibra) { |
1223 | AliInfo("Could not get Calibra instance\n"); | |
1224 | } | |
8ec526a4 | 1225 | if (calibra->GetMITracking()) { |
1226 | calibra->ResetTrack(); | |
77566f2a | 1227 | } |
1228 | ||
33744e5d | 1229 | for (Int_t i = 0; i < 1000; i++) { |
1230 | clusters[i] = -1; | |
1231 | } | |
1232 | ||
4551ea7c | 1233 | for (Int_t iplane = 0; iplane < AliESDtrack::kNPlane; iplane++) { |
1234 | ||
7e448bcc | 1235 | int hb = iplane * 10; |
1236 | fHClSearch->Fill(hb); | |
1237 | ||
4551ea7c | 1238 | Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); |
1239 | Int_t rowlast = GetGlobalTimeBin(0,iplane,0); | |
1240 | Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX(); | |
1241 | if (currentx < t.GetX()) { | |
7e448bcc | 1242 | fHClSearch->Fill(hb+1); |
4551ea7c | 1243 | continue; |
1244 | } | |
1245 | ||
6c94f330 | 1246 | // |
4551ea7c | 1247 | // Propagate closer to chamber if neccessary |
6c94f330 | 1248 | // |
4551ea7c | 1249 | if (currentx > (fgkMaxStep + t.GetX())) { |
1250 | if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) { | |
7e448bcc | 1251 | fHClSearch->Fill(hb+2); |
4551ea7c | 1252 | break; |
1253 | } | |
1254 | } | |
1255 | if (!AdjustSector(&t)) { | |
7e448bcc | 1256 | fHClSearch->Fill(hb+3); |
4551ea7c | 1257 | break; |
8979685e | 1258 | } |
4551ea7c | 1259 | if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) { |
7e448bcc | 1260 | fHClSearch->Fill(hb+4); |
4551ea7c | 1261 | break; |
1262 | } | |
1263 | ||
8979685e | 1264 | // |
4551ea7c | 1265 | // Get material budget inside of chamber |
59393e34 | 1266 | // |
4551ea7c | 1267 | Double_t xyz0[3]; |
1268 | Double_t xyz1[3]; | |
1269 | Double_t param[7]; | |
1270 | Double_t x; | |
1271 | Double_t y; | |
1272 | Double_t z; | |
1273 | // Starting global position | |
1274 | t.GetXYZ(xyz0); | |
1275 | // End global position | |
7b580082 | 1276 | x = fTrSec[0]->GetLayer(rowlast)->GetX(); |
4551ea7c | 1277 | if (!t.GetProlongation(x,y,z)) { |
7e448bcc | 1278 | fHClSearch->Fill(hb+5); |
4551ea7c | 1279 | break; |
1280 | } | |
1281 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1282 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1283 | xyz1[2] = z; | |
7b580082 | 1284 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1285 | rho = param[0]; |
1286 | radLength = param[1]; // Get mean propagation parameters | |
1287 | ||
8979685e | 1288 | // |
7b580082 | 1289 | // Find clusters |
8979685e | 1290 | // |
6c94f330 | 1291 | sector = t.GetSector(); |
4551ea7c | 1292 | Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); |
7e448bcc | 1293 | fHNCl->Fill(tracklet.GetN()); |
1294 | ||
4551ea7c | 1295 | if (tracklet.GetN() < GetTimeBinsPerPlane()/3) { |
7e448bcc | 1296 | fHClSearch->Fill(hb+6); |
4551ea7c | 1297 | continue; |
1298 | } | |
1299 | ||
8979685e | 1300 | // |
7b580082 | 1301 | // Propagate and update track |
8979685e | 1302 | // |
4551ea7c | 1303 | for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) { |
1304 | ||
1305 | Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); | |
8979685e | 1306 | expectedNumberOfClusters++; |
27eaf44b | 1307 | t.SetNExpected(t.GetNExpected() + 1); |
4551ea7c | 1308 | if (t.GetX() > 345.0) { |
27eaf44b | 1309 | t.SetNExpectedLast(t.GetNExpectedLast() + 1); |
4551ea7c | 1310 | } |
1311 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); | |
7e448bcc | 1312 | AliTRDcluster *cl = 0; |
4551ea7c | 1313 | UInt_t index = 0; |
1314 | Double_t maxChi2 = fgkMaxChi2; | |
8979685e | 1315 | x = timeBin.GetX(); |
4551ea7c | 1316 | |
8979685e | 1317 | if (timeBin) { |
4551ea7c | 1318 | |
1319 | if (clusters[ilayer] > 0) { | |
8979685e | 1320 | index = clusters[ilayer]; |
4551ea7c | 1321 | cl = (AliTRDcluster *)GetCluster(index); |
33744e5d | 1322 | //Double_t h01 = GetTiltFactor(cl); // I.B's fix |
1323 | //maxChi2=t.GetPredictedChi2(cl,h01); // | |
8979685e | 1324 | } |
1325 | ||
1326 | if (cl) { | |
4551ea7c | 1327 | |
1328 | //if (cl->GetNPads() < 5) | |
59393e34 | 1329 | Double_t dxsample = timeBin.GetdX(); |
1330 | t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); | |
4551ea7c | 1331 | Double_t h01 = GetTiltFactor(cl); |
1332 | Int_t det = cl->GetDetector(); | |
1333 | Int_t plane = fGeom->GetPlane(det); | |
1334 | if (t.GetX() > 345.0) { | |
27eaf44b | 1335 | t.SetNLast(t.GetNLast() + 1); |
1336 | t.SetChi2Last(t.GetChi2Last() + maxChi2); | |
8979685e | 1337 | } |
59393e34 | 1338 | Double_t xcluster = cl->GetX(); |
1339 | t.PropagateTo(xcluster,radLength,rho); | |
4551ea7c | 1340 | maxChi2 = t.GetPredictedChi2(cl,h01); |
6c94f330 | 1341 | |
c2239ca8 | 1342 | if (maxChi2<1e+10) |
1343 | if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { | |
1344 | if (!t.Update(cl,maxChi2,index,h01)) { | |
1345 | // ???? | |
1346 | } | |
1347 | } | |
4551ea7c | 1348 | |
8ec526a4 | 1349 | if (calibra->GetMITracking()) { |
77566f2a | 1350 | calibra->UpdateHistograms(cl,&t); |
1351 | } | |
1352 | ||
4551ea7c | 1353 | // Reset material budget if 2 consecutive gold |
1354 | if (plane > 0) { | |
27eaf44b | 1355 | if ((t.GetTracklets(plane).GetN() + t.GetTracklets(plane-1).GetN()) > 20) { |
1356 | t.SetBudget(2,0.0); | |
4551ea7c | 1357 | } |
1358 | } | |
1359 | ||
1360 | } | |
1361 | ||
8979685e | 1362 | } |
4551ea7c | 1363 | |
59393e34 | 1364 | } |
4551ea7c | 1365 | |
1366 | ratio0 = ncl / Float_t(fTimeBinsPerPlane); | |
27eaf44b | 1367 | Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1); |
1368 | if ((tracklet.GetChi2() < 18.0) && | |
1369 | (ratio0 > 0.8) && | |
1370 | (ratio1 > 0.6) && | |
1371 | (ratio0+ratio1 > 1.5) && | |
1372 | (t.GetNCross() == 0) && | |
1373 | (TMath::Abs(t.GetSnp()) < 0.85) && | |
1374 | (t.GetNumberOfClusters() > 20)){ | |
7e448bcc | 1375 | //if (ratio0 > 0.8) { |
4551ea7c | 1376 | t.MakeBackupTrack(); // Make backup of the track until is gold |
59393e34 | 1377 | } |
7b580082 | 1378 | |
8979685e | 1379 | } |
5443e65e | 1380 | |
75bd7f81 | 1381 | return expectedNumberOfClusters; |
75bd7f81 | 1382 | } |
1e9bb598 | 1383 | |
75bd7f81 | 1384 | //_____________________________________________________________________________ |
4551ea7c | 1385 | Int_t AliTRDtracker::PropagateToX(AliTRDtrack &t, Double_t xToGo, Double_t maxStep) |
5443e65e | 1386 | { |
75bd7f81 | 1387 | // |
5443e65e | 1388 | // Starting from current radial position of track <t> this function |
1389 | // extrapolates the track up to radial position <xToGo>. | |
1390 | // Returns 1 if track reaches the plane, and 0 otherwise | |
75bd7f81 | 1391 | // |
1392 | ||
59393e34 | 1393 | const Double_t kEpsilon = 0.00001; |
4551ea7c | 1394 | //Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); |
1395 | Double_t xpos = t.GetX(); | |
1396 | Double_t dir = (xpos<xToGo) ? 1.0 : -1.0; | |
1397 | ||
1398 | while (((xToGo-xpos)*dir) > kEpsilon) { | |
1399 | ||
1400 | Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep); | |
1401 | ||
1402 | Double_t xyz0[3]; | |
1403 | Double_t xyz1[3]; | |
1404 | Double_t param[7]; | |
1405 | Double_t x; | |
1406 | Double_t y; | |
1407 | Double_t z; | |
1408 | // Starting global position | |
1409 | t.GetXYZ(xyz0); | |
1410 | x = xpos + step; | |
1411 | ||
1412 | if (!t.GetProlongation(x,y,z)) { | |
1413 | return 0; // No prolongation | |
1414 | } | |
1415 | ||
1416 | xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); | |
1417 | xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); | |
1418 | xyz1[2] = z; | |
1419 | ||
59393e34 | 1420 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); |
4551ea7c | 1421 | if (!t.PropagateTo(x,param[1],param[0])) { |
1422 | return 0; | |
1423 | } | |
59393e34 | 1424 | AdjustSector(&t); |
1425 | xpos = t.GetX(); | |
4551ea7c | 1426 | |
5443e65e | 1427 | } |
75bd7f81 | 1428 | |
5443e65e | 1429 | return 1; |
5443e65e | 1430 | |
59393e34 | 1431 | } |
5443e65e | 1432 | |
c630aafd | 1433 | //_____________________________________________________________________________ |
1434 | Int_t AliTRDtracker::LoadClusters(TTree *cTree) | |
1435 | { | |
75bd7f81 | 1436 | // |
c630aafd | 1437 | // Fills clusters into TRD tracking_sectors |
1438 | // Note that the numbering scheme for the TRD tracking_sectors | |
1439 | // differs from that of TRD sectors | |
75bd7f81 | 1440 | // |
1441 | ||
c630aafd | 1442 | if (ReadClusters(fClusters,cTree)) { |
4551ea7c | 1443 | AliError("Problem with reading the clusters !"); |
c630aafd | 1444 | return 1; |
1445 | } | |
4551ea7c | 1446 | Int_t ncl = fClusters->GetEntriesFast(); |
1447 | fNclusters = ncl; | |
1448 | AliInfo(Form("Sorting %d clusters",ncl)); | |
c630aafd | 1449 | |
1450 | UInt_t index; | |
4551ea7c | 1451 | for (Int_t ichamber = 0; ichamber < 5; ichamber++) { |
1452 | for (Int_t isector = 0; isector < 18; isector++) { | |
1453 | fHoles[ichamber][isector] = kTRUE; | |
3c625a9b | 1454 | } |
4551ea7c | 1455 | } |
ad670fba | 1456 | |
6c94f330 | 1457 | while (ncl--) { |
33744e5d | 1458 | |
4551ea7c | 1459 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(ncl); |
1460 | Int_t detector = c->GetDetector(); | |
1461 | Int_t localTimeBin = c->GetLocalTimeBin(); | |
1462 | Int_t sector = fGeom->GetSector(detector); | |
1463 | Int_t plane = fGeom->GetPlane(detector); | |
439c63c8 | 1464 | Int_t trackingSector = sector; |
4551ea7c | 1465 | |
7e448bcc | 1466 | //if (c->GetLabel(0) > 0) { |
1467 | if (c->GetQ() > 10) { | |
3c625a9b | 1468 | Int_t chamber = fGeom->GetChamber(detector); |
4551ea7c | 1469 | fHoles[chamber][trackingSector] = kFALSE; |
3c625a9b | 1470 | } |
c630aafd | 1471 | |
6c94f330 | 1472 | Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); |
4551ea7c | 1473 | if (gtb < 0) { |
1474 | continue; | |
1475 | } | |
029cd327 | 1476 | Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); |
c630aafd | 1477 | |
4551ea7c | 1478 | index = ncl; |
33744e5d | 1479 | |
1480 | // Apply pos correction | |
7e448bcc | 1481 | Transform(c); |
1482 | fHXCl->Fill(c->GetX()); | |
33744e5d | 1483 | |
7e448bcc | 1484 | fTrSec[trackingSector]->GetLayer(layer)->SetX(c->GetX()); |
1485 | fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); | |
4551ea7c | 1486 | } |
75bd7f81 | 1487 | |
c630aafd | 1488 | return 0; |
75bd7f81 | 1489 | |
c630aafd | 1490 | } |
1491 | ||
5443e65e | 1492 | //_____________________________________________________________________________ |
b7a0917f | 1493 | void AliTRDtracker::UnloadClusters() |
5443e65e | 1494 | { |
1495 | // | |
1496 | // Clears the arrays of clusters and tracks. Resets sectors and timebins | |
1497 | // | |
1498 | ||
4551ea7c | 1499 | Int_t i; |
1500 | Int_t nentr; | |
5443e65e | 1501 | |
1502 | nentr = fClusters->GetEntriesFast(); | |
4551ea7c | 1503 | for (i = 0; i < nentr; i++) { |
1504 | delete fClusters->RemoveAt(i); | |
1505 | } | |
b7a0917f | 1506 | fNclusters = 0; |
5443e65e | 1507 | |
1508 | nentr = fSeeds->GetEntriesFast(); | |
4551ea7c | 1509 | for (i = 0; i < nentr; i++) { |
1510 | delete fSeeds->RemoveAt(i); | |
1511 | } | |
5443e65e | 1512 | |
1513 | nentr = fTracks->GetEntriesFast(); | |
4551ea7c | 1514 | for (i = 0; i < nentr; i++) { |
1515 | delete fTracks->RemoveAt(i); | |
1516 | } | |
5443e65e | 1517 | |
1518 | Int_t nsec = AliTRDgeometry::kNsect; | |
5443e65e | 1519 | for (i = 0; i < nsec; i++) { |
1520 | for(Int_t pl = 0; pl < fTrSec[i]->GetNumberOfLayers(); pl++) { | |
1521 | fTrSec[i]->GetLayer(pl)->Clear(); | |
1522 | } | |
1523 | } | |
1524 | ||
1525 | } | |
1526 | ||
75bd7f81 | 1527 | //_____________________________________________________________________________ |
4551ea7c | 1528 | void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD *esd) |
7ad19338 | 1529 | { |
1530 | // | |
1531 | // Creates seeds using clusters between position inner plane and outer plane | |
1532 | // | |
75bd7f81 | 1533 | |
4551ea7c | 1534 | const Double_t kMaxTheta = 1.0; |
1535 | const Double_t kMaxPhi = 2.0; | |
1536 | ||
1537 | const Double_t kRoad0y = 6.0; // Road for middle cluster | |
1538 | const Double_t kRoad0z = 8.5; // Road for middle cluster | |
1539 | ||
1540 | const Double_t kRoad1y = 2.0; // Road in y for seeded cluster | |
1541 | const Double_t kRoad1z = 20.0; // Road in z for seeded cluster | |
1542 | ||
1543 | const Double_t kRoad2y = 3.0; // Road in y for extrapolated cluster | |
1544 | const Double_t kRoad2z = 20.0; // Road in z for extrapolated cluster | |
c6f438c0 | 1545 | const Int_t kMaxSeed = 3000; |
7ad19338 | 1546 | |
4551ea7c | 1547 | Int_t maxSec = AliTRDgeometry::kNsect; |
1548 | ||
1549 | // Linear fitters in planes | |
1550 | TLinearFitter fitterTC(2,"hyp2"); // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const | |
1551 | TLinearFitter fitterT2(4,"hyp4"); // Fitting with tilting pads - kz not fixed | |
69b55c55 | 1552 | fitterTC.StoreData(kTRUE); |
1553 | fitterT2.StoreData(kTRUE); | |
4551ea7c | 1554 | AliRieman rieman(1000); // Rieman fitter |
1555 | AliRieman rieman2(1000); // Rieman fitter | |
1556 | ||
1557 | // Find the maximal and minimal layer for the planes | |
7ad19338 | 1558 | Int_t layers[6][2]; |
4551ea7c | 1559 | AliTRDpropagationLayer *reflayers[6]; |
1560 | for (Int_t i = 0; i < 6; i++) { | |
1561 | layers[i][0] = 10000; | |
1562 | layers[i][1] = 0; | |
1563 | } | |
1564 | for (Int_t ns = 0; ns < maxSec; ns++) { | |
1565 | for (Int_t ilayer = 0; ilayer < fTrSec[ns]->GetNumberOfLayers(); ilayer++) { | |
1566 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(ilayer)); | |
1567 | if (layer == 0) { | |
1568 | continue; | |
1569 | } | |
7ad19338 | 1570 | Int_t det = layer[0]->GetDetector(); |
1571 | Int_t plane = fGeom->GetPlane(det); | |
4551ea7c | 1572 | if (ilayer < layers[plane][0]) { |
1573 | layers[plane][0] = ilayer; | |
1574 | } | |
1575 | if (ilayer > layers[plane][1]) { | |
1576 | layers[plane][1] = ilayer; | |
1577 | } | |
7ad19338 | 1578 | } |
1579 | } | |
4551ea7c | 1580 | |
3551db50 | 1581 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); |
6c94f330 | 1582 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
4551ea7c | 1583 | Double_t hL[6]; // Tilting angle |
1584 | Double_t xcl[6]; // X - position of reference cluster | |
1585 | Double_t ycl[6]; // Y - position of reference cluster | |
1586 | Double_t zcl[6]; // Z - position of reference cluster | |
1587 | ||
1588 | AliTRDcluster *cl[6] = { 0, 0, 0, 0, 0, 0 }; // Seeding clusters | |
1589 | Float_t padlength[6] = { 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 }; // Current pad-length | |
1590 | ||
1591 | Double_t chi2R = 0.0; | |
1592 | Double_t chi2Z = 0.0; | |
1593 | Double_t chi2RF = 0.0; | |
1594 | Double_t chi2ZF = 0.0; | |
1595 | ||
1596 | Int_t nclusters; // Total number of clusters | |
1597 | for (Int_t i = 0; i < 6; i++) { | |
1598 | hL[i] = h01; | |
1599 | if (i%2==1) { | |
1600 | hL[i]*=-1.0; | |
1601 | } | |
1602 | } | |
1603 | ||
1604 | // Registered seed | |
c6f438c0 | 1605 | AliTRDseed *pseed = new AliTRDseed[kMaxSeed*6]; |
1606 | AliTRDseed *seed[kMaxSeed]; | |
4551ea7c | 1607 | for (Int_t iseed = 0; iseed < kMaxSeed; iseed++) { |
1608 | seed[iseed]= &pseed[iseed*6]; | |
1609 | } | |
69b55c55 | 1610 | AliTRDseed *cseed = seed[0]; |
4551ea7c | 1611 | |
1612 | Double_t seedquality[kMaxSeed]; | |
1613 | Double_t seedquality2[kMaxSeed]; | |
1614 | Double_t seedparams[kMaxSeed][7]; | |
1615 | Int_t seedlayer[kMaxSeed]; | |
1616 | Int_t registered = 0; | |
1617 | Int_t sort[kMaxSeed]; | |
1618 | ||
1619 | // | |
1620 | // Seeding part | |
1621 | // | |
1622 | for (Int_t ns = 0; ns < maxSec; ns++) { // Loop over sectors | |
1623 | //for (Int_t ns = 0; ns < 5; ns++) { // Loop over sectors | |
1624 | ||
1625 | registered = 0; // Reset registerd seed counter | |
1626 | cseed = seed[registered]; | |
1627 | Float_t iter = 0.0; | |
1628 | ||
1629 | for (Int_t sLayer = 2; sLayer >= 0; sLayer--) { | |
1630 | //for (Int_t dseed = 5; dseed < 15; dseed += 3) { | |
1631 | ||
1632 | iter += 1.0; | |
1633 | Int_t dseed = 5 + Int_t(iter) * 3; | |
1634 | ||
69b55c55 | 1635 | // Initialize seeding layers |
4551ea7c | 1636 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { |
69b55c55 | 1637 | reflayers[ilayer] = fTrSec[ns]->GetLayer(layers[ilayer][1]-dseed); |
1638 | xcl[ilayer] = reflayers[ilayer]->GetX(); | |
4551ea7c | 1639 | } |
1640 | ||
1641 | Double_t xref = (xcl[sLayer+1] + xcl[sLayer+2]) * 0.5; | |
1642 | AliTRDpropagationLayer &layer0 = *reflayers[sLayer+0]; | |
1643 | AliTRDpropagationLayer &layer1 = *reflayers[sLayer+1]; | |
1644 | AliTRDpropagationLayer &layer2 = *reflayers[sLayer+2]; | |
1645 | AliTRDpropagationLayer &layer3 = *reflayers[sLayer+3]; | |
1646 | ||
1647 | Int_t maxn3 = layer3; | |
1648 | for (Int_t icl3 = 0; icl3 < maxn3; icl3++) { | |
33744e5d | 1649 | |
69b55c55 | 1650 | AliTRDcluster *cl3 = layer3[icl3]; |
4551ea7c | 1651 | if (!cl3) { |
1652 | continue; | |
1653 | } | |
1654 | padlength[sLayer+3] = TMath::Sqrt(cl3->GetSigmaZ2() * 12.0); | |
69b55c55 | 1655 | ycl[sLayer+3] = cl3->GetY(); |
1656 | zcl[sLayer+3] = cl3->GetZ(); | |
4551ea7c | 1657 | Float_t yymin0 = ycl[sLayer+3] - 1.0 - kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); |
1658 | Float_t yymax0 = ycl[sLayer+3] + 1.0 + kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); | |
1659 | Int_t maxn0 = layer0; | |
1660 | ||
1661 | for (Int_t icl0 = layer0.Find(yymin0); icl0 < maxn0; icl0++) { | |
1662 | ||
69b55c55 | 1663 | AliTRDcluster *cl0 = layer0[icl0]; |
4551ea7c | 1664 | if (!cl0) { |
1665 | continue; | |
1666 | } | |
1667 | if (cl3->IsUsed() && cl0->IsUsed()) { | |
1668 | continue; | |
1669 | } | |
69b55c55 | 1670 | ycl[sLayer+0] = cl0->GetY(); |
1671 | zcl[sLayer+0] = cl0->GetZ(); | |
4551ea7c | 1672 | if (ycl[sLayer+0] > yymax0) { |
1673 | break; | |
1674 | } | |
1675 | Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1676 | if (TMath::Abs(tanphi) > kMaxPhi) { | |
1677 | continue; | |
1678 | } | |
1679 | Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); | |
1680 | if (TMath::Abs(tantheta) > kMaxTheta) { | |
1681 | continue; | |
1682 | } | |
1683 | padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2() * 12.0); | |
1684 | ||
1685 | // Expected position in 1 layer | |
1686 | Double_t y1exp = ycl[sLayer+0] + (tanphi) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1687 | Double_t z1exp = zcl[sLayer+0] + (tantheta) * (xcl[sLayer+1]-xcl[sLayer+0]); | |
1688 | Float_t yymin1 = y1exp - kRoad0y - tanphi; | |
1689 | Float_t yymax1 = y1exp + kRoad0y + tanphi; | |
1690 | Int_t maxn1 = layer1; | |
1691 | ||
1692 | for (Int_t icl1 = layer1.Find(yymin1); icl1 < maxn1; icl1++) { | |
1693 | ||
69b55c55 | 1694 | AliTRDcluster *cl1 = layer1[icl1]; |
4551ea7c | 1695 | if (!cl1) { |
1696 | continue; | |
1697 | } | |
69b55c55 | 1698 | Int_t nusedCl = 0; |
1699 | if (cl3->IsUsed()) nusedCl++; | |
1700 | if (cl0->IsUsed()) nusedCl++; | |
1701 | if (cl1->IsUsed()) nusedCl++; | |
4551ea7c | 1702 | if (nusedCl > 1) { |
1703 | continue; | |
1704 | } | |
69b55c55 | 1705 | ycl[sLayer+1] = cl1->GetY(); |
1706 | zcl[sLayer+1] = cl1->GetZ(); | |
4551ea7c | 1707 | if (ycl[sLayer+1] > yymax1) { |
1708 | break; | |
1709 | } | |
1710 | if (TMath::Abs(ycl[sLayer+1]-y1exp) > kRoad0y+tanphi) { | |
1711 | continue; | |
1712 | } | |
1713 | if (TMath::Abs(zcl[sLayer+1]-z1exp) > kRoad0z) { | |
1714 | continue; | |
1715 | } | |
1716 | padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2() * 12.0); | |
1717 | ||
1718 | Double_t y2exp = ycl[sLayer+0]+(tanphi) * (xcl[sLayer+2]-xcl[sLayer+0]) + (ycl[sLayer+1]-y1exp); | |
1719 | Double_t z2exp = zcl[sLayer+0]+(tantheta) * (xcl[sLayer+2]-xcl[sLayer+0]); | |
1720 | Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y,kRoad1z); | |
1721 | if (index2 <= 0) { | |
1722 | continue; | |
1723 | } | |
1724 | AliTRDcluster *cl2 = (AliTRDcluster *) GetCluster(index2); | |
1725 | padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2() * 12.0); | |
1726 | ycl[sLayer+2] = cl2->GetY(); | |
1727 | zcl[sLayer+2] = cl2->GetZ(); | |
1728 | if (TMath::Abs(cl2->GetZ()-z2exp) > kRoad0z) { | |
1729 | continue; | |
1730 | } | |
1731 | ||
69b55c55 | 1732 | rieman.Reset(); |
1733 | rieman.AddPoint(xcl[sLayer+0],ycl[sLayer+0],zcl[sLayer+0],1,10); | |
1734 | rieman.AddPoint(xcl[sLayer+1],ycl[sLayer+1],zcl[sLayer+1],1,10); | |
1735 | rieman.AddPoint(xcl[sLayer+3],ycl[sLayer+3],zcl[sLayer+3],1,10); | |
1736 | rieman.AddPoint(xcl[sLayer+2],ycl[sLayer+2],zcl[sLayer+2],1,10); | |
1737 | rieman.Update(); | |
4551ea7c | 1738 | |
1739 | // Reset fitter | |
1740 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
69b55c55 | 1741 | cseed[iLayer].Reset(); |
1742 | } | |
4551ea7c | 1743 | chi2Z = 0.0; |
1744 | chi2R = 0.0; | |
1745 | ||
1746 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1747 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); |
1748 | chi2Z += (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]) | |
1749 | * (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]); | |
1750 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
1751 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); | |
1752 | chi2R += (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]) | |
1753 | * (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]); | |
1754 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
69b55c55 | 1755 | } |
4551ea7c | 1756 | if (TMath::Sqrt(chi2R) > 1.0/iter) { |
1757 | continue; | |
1758 | } | |
1759 | if (TMath::Sqrt(chi2Z) > 7.0/iter) { | |
1760 | continue; | |
69b55c55 | 1761 | } |
4551ea7c | 1762 | |
1763 | Float_t minmax[2] = { -100.0, 100.0 }; | |
1764 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1765 | Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1766 | + 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1767 | if (max < minmax[1]) { |
1768 | minmax[1] = max; | |
1769 | } | |
1770 | Float_t min = zcl[sLayer+iLayer]-padlength[sLayer+iLayer] * 0.5 | |
ca1e1e5b | 1771 | - 1.0 - cseed[sLayer+iLayer].GetZref(0); |
4551ea7c | 1772 | if (min > minmax[0]) { |
1773 | minmax[0] = min; | |
1774 | } | |
1775 | } | |
1776 | ||
69b55c55 | 1777 | Bool_t isFake = kFALSE; |
4551ea7c | 1778 | if (cl0->GetLabel(0) != cl3->GetLabel(0)) { |
1779 | isFake = kTRUE; | |
1780 | } | |
1781 | if (cl1->GetLabel(0) != cl3->GetLabel(0)) { | |
1782 | isFake = kTRUE; | |
1783 | } | |
1784 | if (cl2->GetLabel(0) != cl3->GetLabel(0)) { | |
1785 | isFake = kTRUE; | |
1786 | } | |
1787 | ||
1788 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
1789 | if ((!isFake) || ((icl3%10) == 0)) { // Debugging print | |
1790 | TTreeSRedirector &cstream = *fDebugStreamer; | |
1791 | cstream << "Seeds0" | |
1792 | << "isFake=" << isFake | |
1793 | << "Cl0.=" << cl0 | |
1794 | << "Cl1.=" << cl1 | |
1795 | << "Cl2.=" << cl2 | |
1796 | << "Cl3.=" << cl3 | |
1797 | << "Xref=" << xref | |
1798 | << "X0=" << xcl[sLayer+0] | |
1799 | << "X1=" << xcl[sLayer+1] | |
1800 | << "X2=" << xcl[sLayer+2] | |
1801 | << "X3=" << xcl[sLayer+3] | |
1802 | << "Y2exp=" << y2exp | |
1803 | << "Z2exp=" << z2exp | |
1804 | << "Chi2R=" << chi2R | |
1805 | << "Chi2Z=" << chi2Z | |
1806 | << "Seed0.=" << &cseed[sLayer+0] | |
1807 | << "Seed1.=" << &cseed[sLayer+1] | |
1808 | << "Seed2.=" << &cseed[sLayer+2] | |
1809 | << "Seed3.=" << &cseed[sLayer+3] | |
1810 | << "Zmin=" << minmax[0] | |
1811 | << "Zmax=" << minmax[1] | |
1812 | << "\n"; | |
d337ef8d | 1813 | } |
69b55c55 | 1814 | } |
33744e5d | 1815 | |
4551ea7c | 1816 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1817 | // |
4551ea7c | 1818 | // Fit seeding part |
33744e5d | 1819 | // |
4551ea7c | 1820 | //////////////////////////////////////////////////////////////////////////////////// |
33744e5d | 1821 | |
69b55c55 | 1822 | cl[sLayer+0] = cl0; |
1823 | cl[sLayer+1] = cl1; | |
1824 | cl[sLayer+2] = cl2; | |
1825 | cl[sLayer+3] = cl3; | |
4551ea7c | 1826 | Bool_t isOK = kTRUE; |
1827 | ||
1828 | for (Int_t jLayer = 0; jLayer < 4; jLayer++) { | |
1829 | ||
ca1e1e5b | 1830 | cseed[sLayer+jLayer].SetTilt(hL[sLayer+jLayer]); |
1831 | cseed[sLayer+jLayer].SetPadLength(padlength[sLayer+jLayer]); | |
1832 | cseed[sLayer+jLayer].SetX0(xcl[sLayer+jLayer]); | |
4551ea7c | 1833 | |
1834 | for (Int_t iter = 0; iter < 2; iter++) { | |
1835 | ||
69b55c55 | 1836 | // |
4551ea7c | 1837 | // In iteration 0 we try only one pad-row |
1838 | // If quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows | |
69b55c55 | 1839 | // |
1840 | AliTRDseed tseed = cseed[sLayer+jLayer]; | |
4551ea7c | 1841 | Float_t roadz = padlength[sLayer+jLayer] * 0.5; |
1842 | if (iter > 0) { | |
1843 | roadz = padlength[sLayer+jLayer]; | |
1844 | } | |
1845 | ||
1846 | Float_t quality = 10000.0; | |
1847 | ||
1848 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
1849 | ||
1850 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime)); | |
1851 | Double_t dxlayer = layer.GetX() - xcl[sLayer+jLayer]; | |
1852 | Double_t zexp = cl[sLayer+jLayer]->GetZ(); | |
1853 | ||
1854 | if (iter > 0) { | |
1855 | // Try 2 pad-rows in second iteration | |
ca1e1e5b | 1856 | zexp = tseed.GetZref(0) + tseed.GetZref(1) * dxlayer; |
4551ea7c | 1857 | if (zexp > cl[sLayer+jLayer]->GetZ()) { |
1858 | zexp = cl[sLayer+jLayer]->GetZ() + padlength[sLayer+jLayer]*0.5; | |
1859 | } | |
1860 | if (zexp < cl[sLayer+jLayer]->GetZ()) { | |
1861 | zexp = cl[sLayer+jLayer]->GetZ() - padlength[sLayer+jLayer]*0.5; | |
1862 | } | |
69b55c55 | 1863 | } |
4551ea7c | 1864 | |
ca1e1e5b | 1865 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 1866 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
1867 | if (index <= 0) { | |
1868 | continue; | |
1869 | } | |
1870 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
1871 | ||
ca1e1e5b | 1872 | tseed.SetIndexes(iTime,index); |
1873 | tseed.SetClusters(iTime,cl); // Register cluster | |
1874 | tseed.SetX(iTime,dxlayer); // Register cluster | |
1875 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
1876 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 1877 | |
1878 | } | |
1879 | ||
69b55c55 | 1880 | tseed.Update(); |
4551ea7c | 1881 | |
1882 | // Count the number of clusters and distortions into quality | |
ca1e1e5b | 1883 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
1884 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
1885 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
1886 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 1887 | if ((iter == 0) && tseed.IsOK()) { |
1888 | cseed[sLayer+jLayer] = tseed; | |
1889 | quality = tquality; | |
1890 | if (tquality < 5) { | |
1891 | break; | |
1892 | } | |
1893 | } | |
1894 | if (tseed.IsOK() && (tquality < quality)) { | |
69b55c55 | 1895 | cseed[sLayer+jLayer] = tseed; |
69b55c55 | 1896 | } |
4551ea7c | 1897 | |
1898 | } // Loop: iter | |
1899 | ||
1900 | if (!cseed[sLayer+jLayer].IsOK()) { | |
69b55c55 | 1901 | isOK = kFALSE; |
1902 | break; | |
4551ea7c | 1903 | } |
1904 | ||
69b55c55 | 1905 | cseed[sLayer+jLayer].CookLabels(); |
1906 | cseed[sLayer+jLayer].UpdateUsed(); | |
ca1e1e5b | 1907 | nusedCl += cseed[sLayer+jLayer].GetNUsed(); |
4551ea7c | 1908 | if (nusedCl > 25) { |
69b55c55 | 1909 | isOK = kFALSE; |
1910 | break; | |
4551ea7c | 1911 | } |
1912 | ||
1913 | } // Loop: jLayer | |
1914 | ||
1915 | if (!isOK) { | |
1916 | continue; | |
69b55c55 | 1917 | } |
4551ea7c | 1918 | nclusters = 0; |
1919 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
1920 | if (cseed[sLayer+iLayer].IsOK()) { | |
ca1e1e5b | 1921 | nclusters += cseed[sLayer+iLayer].GetN2(); |
69b55c55 | 1922 | } |
1923 | } | |
4551ea7c | 1924 | |
1925 | // Iteration 0 | |
69b55c55 | 1926 | rieman.Reset(); |
4551ea7c | 1927 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { |
1928 | rieman.AddPoint(xcl[sLayer+iLayer] | |
ca1e1e5b | 1929 | ,cseed[sLayer+iLayer].GetYfitR(0) |
1930 | ,cseed[sLayer+iLayer].GetZProb() | |
4551ea7c | 1931 | ,1 |
1932 | ,10); | |
69b55c55 | 1933 | } |
1934 | rieman.Update(); | |
4551ea7c | 1935 | |
1936 | chi2R = 0.0; | |
1937 | chi2Z = 0.0; | |
1938 | ||
1939 | for (Int_t iLayer = 0; iLayer < 4; iLayer++) { | |
ca1e1e5b | 1940 | cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); |
1941 | chi2R += (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)) | |
1942 | * (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)); | |
1943 | cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); | |
1944 | cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); | |
1945 | chi2Z += (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()) | |
1946 | * (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()); | |
1947 | cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); | |
69b55c55 | 1948 | } |
1949 | Double_t curv = rieman.GetC(); | |
4551ea7c | 1950 | |
69b55c55 | 1951 | // |
4551ea7c | 1952 | // Likelihoods |
6c94f330 | 1953 | // |
ca1e1e5b | 1954 | Double_t sumda = TMath::Abs(cseed[sLayer+0].GetYfitR(1) - cseed[sLayer+0].GetYref(1)) |
1955 | + TMath::Abs(cseed[sLayer+1].GetYfitR(1) - cseed[sLayer+1].GetYref(1)) | |
1956 | + TMath::Abs(cseed[sLayer+2].GetYfitR(1) - cseed[sLayer+2].GetYref(1)) | |
1957 | + TMath::Abs(cseed[sLayer+3].GetYfitR(1) - cseed[sLayer+3].GetYref(1)); | |
4551ea7c | 1958 | Double_t likea = TMath::Exp(-sumda*10.6); |
1959 | Double_t likechi2 = 0.0000000001; | |
1960 | if (chi2R < 0.5) { | |
1961 | likechi2 += TMath::Exp(-TMath::Sqrt(chi2R) * 7.73); | |
1962 | } | |
1963 | Double_t likechi2z = TMath::Exp(-chi2Z * 0.088) / TMath::Exp(-chi2Z * 0.019); | |
1964 | Double_t likeN = TMath::Exp(-(72 - nclusters) * 0.19); | |
1965 | Double_t like = likea * likechi2 * likechi2z * likeN; | |
ca1e1e5b | 1966 | Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetYref(1) - 130.0*curv) * 1.9); |
1967 | Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetZref(1) | |
1968 | - cseed[sLayer+0].GetZref(0) / xcl[sLayer+0]) * 5.9); | |
6c94f330 | 1969 | Double_t likePrim = TMath::Max(likePrimY*likePrimZ,0.0005); |
69b55c55 | 1970 | |
4551ea7c | 1971 | seedquality[registered] = like; |
1972 | seedlayer[registered] = sLayer; | |
1973 | if (TMath::Log(0.000000000000001 + like) < -15) { | |
1974 | continue; | |
1975 | } | |
69b55c55 | 1976 | AliTRDseed seedb[6]; |
4551ea7c | 1977 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
69b55c55 | 1978 | seedb[iLayer] = cseed[iLayer]; |
1979 | } | |
4551ea7c | 1980 | |
1981 | //////////////////////////////////////////////////////////////////////////////////// | |
ad670fba | 1982 | // |
4551ea7c | 1983 | // Full track fit part |
33744e5d | 1984 | // |
4551ea7c | 1985 | //////////////////////////////////////////////////////////////////////////////////// |
1986 | ||
1987 | Int_t nlayers = 0; | |
1988 | Int_t nusedf = 0; | |
1989 | Int_t findable = 0; | |
1990 | ||
69b55c55 | 1991 | // |
4551ea7c | 1992 | // Add new layers - avoid long extrapolation |
69b55c55 | 1993 | // |
4551ea7c | 1994 | Int_t tLayer[2] = { 0, 0 }; |
1995 | if (sLayer == 2) { | |
1996 | tLayer[0] = 1; | |
1997 | tLayer[1] = 0; | |
1998 | } | |
1999 | if (sLayer == 1) { | |
2000 | tLayer[0] = 5; | |
2001 | tLayer[1] = 0; | |
2002 | } | |
2003 | if (sLayer == 0) { | |
2004 | tLayer[0] = 4; | |
2005 | tLayer[1] = 5; | |
2006 | } | |
2007 | ||
2008 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
2009 | Int_t jLayer = tLayer[iLayer]; // Set tracking layer | |
69b55c55 | 2010 | cseed[jLayer].Reset(); |
ca1e1e5b | 2011 | cseed[jLayer].SetTilt(hL[jLayer]); |
2012 | cseed[jLayer].SetPadLength(padlength[jLayer]); | |
2013 | cseed[jLayer].SetX0(xcl[jLayer]); | |
4551ea7c | 2014 | // Get pad length and rough cluster |
ca1e1e5b | 2015 | Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].GetYref(0) |
2016 | ,cseed[jLayer].GetZref(0) | |
4551ea7c | 2017 | ,kRoad2y |
2018 | ,kRoad2z); | |
2019 | if (indexdummy <= 0) { | |
2020 | continue; | |
2021 | } | |
2022 | AliTRDcluster *cldummy = (AliTRDcluster *) GetCluster(indexdummy); | |
2023 | padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2() * 12.0); | |
69b55c55 | 2024 | } |
4551ea7c | 2025 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
2026 | ||
2027 | for (Int_t iLayer = 0; iLayer < 2; iLayer++) { | |
2028 | ||
2029 | Int_t jLayer = tLayer[iLayer]; // set tracking layer | |
2030 | if ((jLayer == 0) && !(cseed[1].IsOK())) { | |
2031 | continue; // break not allowed | |
2032 | } | |
2033 | if ((jLayer == 5) && !(cseed[4].IsOK())) { | |
2034 | continue; // break not allowed | |
2035 | } | |
ca1e1e5b | 2036 | Float_t zexp = cseed[jLayer].GetZref(0); |
4551ea7c | 2037 | Double_t zroad = padlength[jLayer] * 0.5 + 1.0; |
2038 | ||
2039 | for (Int_t iter = 0; iter < 2; iter++) { | |
2040 | ||
69b55c55 | 2041 | AliTRDseed tseed = cseed[jLayer]; |
4551ea7c | 2042 | Float_t quality = 10000.0; |
2043 | ||
2044 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
2045 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime)); | |
2046 | Double_t dxlayer = layer.GetX()-xcl[jLayer]; | |
ca1e1e5b | 2047 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; |
4551ea7c | 2048 | Float_t yroad = kRoad1y; |
2049 | Int_t index = layer.FindNearestCluster(yexp,zexp,yroad,zroad); | |
2050 | if (index <= 0) { | |
2051 | continue; | |
2052 | } | |
2053 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); | |
ca1e1e5b | 2054 | tseed.SetIndexes(iTime,index); |
2055 | tseed.SetClusters(iTime,cl); // Register cluster | |
2056 | tseed.SetX(iTime,dxlayer); // Register cluster | |
2057 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
2058 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 2059 | } |
2060 | ||
69b55c55 | 2061 | tseed.Update(); |
4551ea7c | 2062 | if (tseed.IsOK()) { |
ca1e1e5b | 2063 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
2064 | Float_t tquality = (18.0 - tseed.GetN2())/2.0 + TMath::Abs(dangle) / 0.1 | |
2065 | + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 | |
2066 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2067 | if (tquality < quality) { |
2068 | cseed[jLayer] = tseed; | |
2069 | quality = tquality; | |
69b55c55 | 2070 | } |
2071 | } | |
4551ea7c | 2072 | |
2073 | zroad *= 2.0; | |
2074 | ||
2075 | } // Loop: iter | |
2076 | ||
2077 | if ( cseed[jLayer].IsOK()) { | |
69b55c55 | 2078 | cseed[jLayer].CookLabels(); |
2079 | cseed[jLayer].UpdateUsed(); | |
ca1e1e5b | 2080 | nusedf += cseed[jLayer].GetNUsed(); |
4551ea7c | 2081 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); |
69b55c55 | 2082 | } |
4551ea7c | 2083 | |
2084 | } // Loop: iLayer | |
2085 | ||
2086 | // Make copy | |
69b55c55 | 2087 | AliTRDseed bseed[6]; |
4551ea7c | 2088 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { |
69b55c55 | 2089 | bseed[jLayer] = cseed[jLayer]; |
4551ea7c | 2090 | } |
2091 | Float_t lastquality = 10000.0; | |
2092 | Float_t lastchi2 = 10000.0; | |
2093 | Float_t chi2 = 1000.0; | |
2094 | ||
2095 | for (Int_t iter = 0; iter < 4; iter++) { | |
2096 | ||
2097 | // Sort tracklets according "quality", try to "improve" 4 worst | |
2098 | Float_t sumquality = 0.0; | |
69b55c55 | 2099 | Float_t squality[6]; |
2100 | Int_t sortindexes[6]; | |
4551ea7c | 2101 | |
2102 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2103 | if (bseed[jLayer].IsOK()) { | |
69b55c55 | 2104 | AliTRDseed &tseed = bseed[jLayer]; |
ca1e1e5b | 2105 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); |
2106 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); | |
2107 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 | |
2108 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
2109 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2110 | squality[jLayer] = tquality; |
2111 | } | |
2112 | else { | |
2113 | squality[jLayer] = -1.0; | |
ad670fba | 2114 | } |
6c94f330 | 2115 | sumquality +=squality[jLayer]; |
69b55c55 | 2116 | } |
2117 | ||
4551ea7c | 2118 | if ((sumquality >= lastquality) || |
2119 | (chi2 > lastchi2)) { | |
2120 | break; | |
2121 | } | |
69b55c55 | 2122 | lastquality = sumquality; |
2123 | lastchi2 = chi2; | |
4551ea7c | 2124 | if (iter > 0) { |
2125 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
69b55c55 | 2126 | cseed[jLayer] = bseed[jLayer]; |
2127 | } | |
2128 | } | |
2129 | TMath::Sort(6,squality,sortindexes,kFALSE); | |
4551ea7c | 2130 | |
2131 | for (Int_t jLayer = 5; jLayer > 1; jLayer--) { | |
2132 | ||
6c94f330 | 2133 | Int_t bLayer = sortindexes[jLayer]; |
2134 | AliTRDseed tseed = bseed[bLayer]; | |
4551ea7c | 2135 | |
2136 | for (Int_t iTime = 2; iTime < 20; iTime++) { | |
2137 | ||
2138 | AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime)); | |
2139 | Double_t dxlayer = layer.GetX() - xcl[bLayer]; | |
ca1e1e5b | 2140 | Double_t zexp = tseed.GetZref(0); |
2141 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
4551ea7c | 2142 | Float_t roadz = padlength[bLayer] + 1; |
ca1e1e5b | 2143 | if (TMath::Abs(tseed.GetZProb() - zexp) > 0.5*padlength[bLayer]) { |
4551ea7c | 2144 | roadz = padlength[bLayer] * 0.5; |
2145 | } | |
ca1e1e5b | 2146 | if (tseed.GetZfit(1)*tseed.GetZref(1) < 0.0) { |
4551ea7c | 2147 | roadz = padlength[bLayer] * 0.5; |
2148 | } | |
ca1e1e5b | 2149 | if (TMath::Abs(tseed.GetZProb() - zexp) < 0.1*padlength[bLayer]) { |
2150 | zexp = tseed.GetZProb(); | |
4551ea7c | 2151 | roadz = padlength[bLayer] * 0.5; |
2152 | } | |
2153 | ||
ca1e1e5b | 2154 | Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer - zcor; |
4551ea7c | 2155 | Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); |
2156 | if (index <= 0) { | |
2157 | continue; | |
69b55c55 | 2158 | } |
4551ea7c | 2159 | AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); |
2160 | ||
ca1e1e5b | 2161 | tseed.SetIndexes(iTime,index); |
2162 | tseed.SetClusters(iTime,cl); // Register cluster | |
2163 | tseed.SetX(iTime,dxlayer); // Register cluster | |
2164 | tseed.SetY(iTime,cl->GetY()); // Register cluster | |
2165 | tseed.SetZ(iTime,cl->GetZ()); // Register cluster | |
4551ea7c | 2166 | |
2167 | } | |
2168 | ||
69b55c55 | 2169 | tseed.Update(); |
c6f438c0 | 2170 | if (tseed.IsOK()) { |
ca1e1e5b | 2171 | Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); |
2172 | Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); | |
2173 | Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 | |
2174 | + TMath::Abs(dangle) / 0.1 | |
2175 | + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 | |
2176 | + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; | |
4551ea7c | 2177 | if (tquality<squality[bLayer]) { |
69b55c55 | 2178 | bseed[bLayer] = tseed; |
4551ea7c | 2179 | } |
69b55c55 | 2180 | } |
4551ea7c | 2181 | |
2182 | } // Loop: jLayer | |
2183 | ||
2184 | chi2 = AliTRDseed::FitRiemanTilt(bseed,kTRUE); | |
2185 | ||
2186 | } // Loop: iter | |
2187 | ||
2188 | nclusters = 0; | |
2189 | nlayers = 0; | |
2190 | findable = 0; | |
2191 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2192 | if (TMath::Abs(cseed[iLayer].GetYref(0) / cseed[iLayer].GetX0()) < 0.15) { |
69b55c55 | 2193 | findable++; |
4551ea7c | 2194 | } |
2195 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2196 | nclusters += cseed[iLayer].GetN2(); |
69b55c55 | 2197 | nlayers++; |
2198 | } | |
2199 | } | |
4551ea7c | 2200 | if (nlayers < 3) { |
2201 | continue; | |
2202 | } | |
69b55c55 | 2203 | rieman.Reset(); |
4551ea7c | 2204 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { |
2205 | if (cseed[iLayer].IsOK()) { | |
2206 | rieman.AddPoint(xcl[iLayer] | |
ca1e1e5b | 2207 | ,cseed[iLayer].GetYfitR(0) |
2208 | ,cseed[iLayer].GetZProb() | |
4551ea7c | 2209 | ,1 |
2210 | ,10); | |
2211 | } | |
69b55c55 | 2212 | } |
2213 | rieman.Update(); | |
4551ea7c | 2214 | |
2215 | chi2RF = 0.0; | |
2216 | chi2ZF = 0.0; | |
2217 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2218 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2219 | cseed[iLayer].SetYref(0,rieman.GetYat(xcl[iLayer])); |
2220 | chi2RF += (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)) | |
2221 | * (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0)); | |
2222 | cseed[iLayer].SetYref(1,rieman.GetDYat(xcl[iLayer])); | |
2223 | cseed[iLayer].SetZref(0,rieman.GetZat(xcl[iLayer])); | |
2224 | chi2ZF += (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()) | |
2225 | * (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz()); | |
2226 | cseed[iLayer].SetZref(1,rieman.GetDZat(xcl[iLayer])); | |
69b55c55 | 2227 | } |
2228 | } | |
4551ea7c | 2229 | chi2RF /= TMath::Max((nlayers - 3.0),1.0); |
2230 | chi2ZF /= TMath::Max((nlayers - 3.0),1.0); | |
2231 | curv = rieman.GetC(); | |
2232 | ||
2233 | Double_t xref2 = (xcl[2] + xcl[3]) * 0.5; // Middle of the chamber | |
2234 | Double_t dzmf = rieman.GetDZat(xref2); | |
2235 | Double_t zmf = rieman.GetZat(xref2); | |
69b55c55 | 2236 | |
69b55c55 | 2237 | // |
4551ea7c | 2238 | // Fit hyperplane |
69b55c55 | 2239 | // |
4551ea7c | 2240 | Int_t npointsT = 0; |
69b55c55 | 2241 | fitterTC.ClearPoints(); |
2242 | fitterT2.ClearPoints(); | |
2243 | rieman2.Reset(); | |
4551ea7c | 2244 | |
2245 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2246 | ||
2247 | if (!cseed[iLayer].IsOK()) { | |
2248 | continue; | |
2249 | } | |
2250 | ||
2251 | for (Int_t itime = 0; itime < 25; itime++) { | |
2252 | ||
ca1e1e5b | 2253 | if (!cseed[iLayer].IsUsable(itime)) { |
4551ea7c | 2254 | continue; |
2255 | } | |
2256 | // X relative to the middle chamber | |
ca1e1e5b | 2257 | Double_t x = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0() - xref2; |
2258 | Double_t y = cseed[iLayer].GetY(itime); | |
2259 | Double_t z = cseed[iLayer].GetZ(itime); | |
69b55c55 | 2260 | // ExB correction to the correction |
4551ea7c | 2261 | // Tilted rieman |
69b55c55 | 2262 | Double_t uvt[6]; |
4551ea7c | 2263 | // Global x |
ca1e1e5b | 2264 | Double_t x2 = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0(); |
4551ea7c | 2265 | Double_t t = 1.0 / (x2*x2 + y*y); |
2266 | uvt[1] = t; // t | |
2267 | uvt[0] = 2.0 * x2 * uvt[1]; // u | |
2268 | uvt[2] = 2.0 * hL[iLayer] * uvt[1]; | |
2269 | uvt[3] = 2.0 * hL[iLayer] * x * uvt[1]; | |
2270 | uvt[4] = 2.0 * (y + hL[iLayer]*z) * uvt[1]; | |
2271 | Double_t error = 2.0 * 0.2 * uvt[1]; | |
69b55c55 | 2272 | fitterT2.AddPoint(uvt,uvt[4],error); |
4551ea7c | 2273 | |
69b55c55 | 2274 | // |
4551ea7c | 2275 | // Constrained rieman |
69b55c55 | 2276 | // |
ca1e1e5b | 2277 | z = cseed[iLayer].GetZ(itime); |
4551ea7c | 2278 | uvt[0] = 2.0 * x2 * t; // u |
2279 | uvt[1] = 2.0 * hL[iLayer] * x2 * uvt[1]; | |
2280 | uvt[2] = 2.0 * (y + hL[iLayer] * (z - GetZ())) * t; | |
69b55c55 | 2281 | fitterTC.AddPoint(uvt,uvt[2],error); |
69b55c55 | 2282 | rieman2.AddPoint(x2,y,z,1,10); |
2283 | npointsT++; | |
4551ea7c | 2284 | |
69b55c55 | 2285 | } |
4551ea7c | 2286 | |
2287 | } // Loop: iLayer | |
2288 | ||
69b55c55 | 2289 | rieman2.Update(); |
2290 | fitterTC.Eval(); | |
2291 | fitterT2.Eval(); | |
2292 | Double_t rpolz0 = fitterT2.GetParameter(3); | |
2293 | Double_t rpolz1 = fitterT2.GetParameter(4); | |
4551ea7c | 2294 | |
69b55c55 | 2295 | // |
4551ea7c | 2296 | // Linear fitter - not possible to make boundaries |
2297 | // Do not accept non possible z and dzdx combinations | |
69b55c55 | 2298 | // |
4551ea7c | 2299 | Bool_t acceptablez = kTRUE; |
2300 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2301 | if (cseed[iLayer].IsOK()) { | |
2302 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2303 | if (TMath::Abs(cseed[iLayer].GetZProb() - zT2) > padlength[iLayer] * 0.5 + 1.0) { |
69b55c55 | 2304 | acceptablez = kFALSE; |
4551ea7c | 2305 | } |
69b55c55 | 2306 | } |
2307 | } | |
4551ea7c | 2308 | if (!acceptablez) { |
69b55c55 | 2309 | fitterT2.FixParameter(3,zmf); |
2310 | fitterT2.FixParameter(4,dzmf); | |
2311 | fitterT2.Eval(); | |
2312 | fitterT2.ReleaseParameter(3); | |
2313 | fitterT2.ReleaseParameter(4); | |
2314 | rpolz0 = fitterT2.GetParameter(3); | |
2315 | rpolz1 = fitterT2.GetParameter(4); | |
2316 | } | |
4551ea7c | 2317 | |
2318 | Double_t chi2TR = fitterT2.GetChisquare() / Float_t(npointsT); | |
2319 | Double_t chi2TC = fitterTC.GetChisquare() / Float_t(npointsT); | |
69b55c55 | 2320 | Double_t polz1c = fitterTC.GetParameter(2); |
4551ea7c | 2321 | Double_t polz0c = polz1c * xref2; |
6c94f330 | 2322 | Double_t aC = fitterTC.GetParameter(0); |
2323 | Double_t bC = fitterTC.GetParameter(1); | |
4551ea7c | 2324 | Double_t cC = aC / TMath::Sqrt(bC * bC + 1.0); // Curvature |
6c94f330 | 2325 | Double_t aR = fitterT2.GetParameter(0); |
2326 | Double_t bR = fitterT2.GetParameter(1); | |
2327 | Double_t dR = fitterT2.GetParameter(2); | |
4551ea7c | 2328 | Double_t cR = 1.0 + bR*bR - dR*aR; |
2329 | Double_t dca = 0.0; | |
2330 | if (cR > 0.0) { | |
2331 | dca = -dR / (TMath::Sqrt(1.0 + bR*bR - dR*aR) + TMath::Sqrt(1.0 + bR*bR)); | |
2332 | cR = aR / TMath::Sqrt(cR); | |
69b55c55 | 2333 | } |
4551ea7c | 2334 | |
2335 | Double_t chi2ZT2 = 0.0; | |
2336 | Double_t chi2ZTC = 0.0; | |
2337 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2338 | if (cseed[iLayer].IsOK()) { | |
2339 | Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); | |
2340 | Double_t zTC = polz0c + polz1c * (xcl[iLayer] - xref2); | |
ca1e1e5b | 2341 | chi2ZT2 += TMath::Abs(cseed[iLayer].GetMeanz() - zT2); |
2342 | chi2ZTC += TMath::Abs(cseed[iLayer].GetMeanz() - zTC); | |
69b55c55 | 2343 | } |
2344 | } | |
4551ea7c | 2345 | chi2ZT2 /= TMath::Max((nlayers - 3.0),1.0); |
2346 | chi2ZTC /= TMath::Max((nlayers - 3.0),1.0); | |
2347 | ||
2348 | AliTRDseed::FitRiemanTilt(cseed,kTRUE); | |
2349 | Float_t sumdaf = 0.0; | |
2350 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2351 | if (cseed[iLayer].IsOK()) { | |
ca1e1e5b | 2352 | sumdaf += TMath::Abs((cseed[iLayer].GetYfit(1) - cseed[iLayer].GetYref(1)) |
2353 | / cseed[iLayer].GetSigmaY2()); | |
4551ea7c | 2354 | } |
2355 | } | |
2356 | sumdaf /= Float_t (nlayers - 2.0); | |
2357 | ||
69b55c55 | 2358 | // |
4551ea7c | 2359 | // Likelihoods for full track |
69b55c55 | 2360 | // |
4551ea7c | 2361 | Double_t likezf = TMath::Exp(-chi2ZF * 0.14); |
2362 | Double_t likechi2C = TMath::Exp(-chi2TC * 0.677); | |
2363 | Double_t likechi2TR = TMath::Exp(-chi2TR * 0.78); | |
2364 | Double_t likeaf = TMath::Exp(-sumdaf * 3.23); | |
2365 | seedquality2[registered] = likezf * likechi2TR * likeaf; | |
33744e5d | 2366 | |
4551ea7c | 2367 | // Still needed ???? |
69b55c55 | 2368 | // Bool_t isGold = kFALSE; |
2369 | // | |
6c94f330 | 2370 | // if (nlayers == 6 && TMath::Log(0.000000001+seedquality2[index])<-5.) isGold =kTRUE; // gold |
2371 | // if (nlayers == findable && TMath::Log(0.000000001+seedquality2[index])<-4.) isGold =kTRUE; // gold | |
69b55c55 | 2372 | // if (isGold &&nusedf<10){ |
2373 | // for (Int_t jLayer=0;jLayer<6;jLayer++){ | |
6c94f330 | 2374 | // if ( seed[index][jLayer].IsOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1) |
69b55c55 | 2375 | // seed[index][jLayer].UseClusters(); //sign gold |
2376 | // } | |
2377 | // } | |
4551ea7c | 2378 | |
2379 | Int_t index0 = 0; | |
2380 | if (!cseed[0].IsOK()) { | |
69b55c55 | 2381 | index0 = 1; |
4551ea7c | 2382 | if (!cseed[1].IsOK()) { |
2383 | index0 = 2; | |
2384 | } | |
69b55c55 | 2385 | } |
ca1e1e5b | 2386 | seedparams[registered][0] = cseed[index0].GetX0(); |
2387 | seedparams[registered][1] = cseed[index0].GetYref(0); | |
2388 | seedparams[registered][2] = cseed[index0].GetZref(0); | |
c6f438c0 | 2389 | seedparams[registered][5] = cR; |
ca1e1e5b | 2390 | seedparams[registered][3] = cseed[index0].GetX0() * cR - TMath::Sin(TMath::ATan(cseed[0].GetYref(1))); |
2391 | seedparams[registered][4] = cseed[index0].GetZref(1) | |
2392 | / TMath::Sqrt(1.0 + cseed[index0].GetYref(1) * cseed[index0].GetYref(1)); | |
69b55c55 | 2393 | seedparams[registered][6] = ns; |
4551ea7c | 2394 | |
2395 | Int_t labels[12]; | |
2396 | Int_t outlab[24]; | |
2397 | Int_t nlab = 0; | |
2398 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2399 | if (!cseed[iLayer].IsOK()) { | |
2400 | continue; | |
2401 | } | |
ca1e1e5b | 2402 | if (cseed[iLayer].GetLabels(0) >= 0) { |
2403 | labels[nlab] = cseed[iLayer].GetLabels(0); | |
69b55c55 | 2404 | nlab++; |
2405 | } | |
ca1e1e5b | 2406 | if (cseed[iLayer].GetLabels(1) >= 0) { |
2407 | labels[nlab] = cseed[iLayer].GetLabels(1); | |
69b55c55 | 2408 | nlab++; |
4551ea7c | 2409 | } |
69b55c55 | 2410 | } |
2411 | Freq(nlab,labels,outlab,kFALSE); | |
4551ea7c | 2412 | Int_t label = outlab[0]; |
2413 | Int_t frequency = outlab[1]; | |
2414 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
ca1e1e5b | 2415 | cseed[iLayer].SetFreq(frequency); |
2416 | cseed[iLayer].SetC(cR); | |
2417 | cseed[iLayer].SetCC(cC); | |
2418 | cseed[iLayer].SetChi2(chi2TR); | |
2419 | cseed[iLayer].SetChi2Z(chi2ZF); | |
69b55c55 | 2420 | } |
33744e5d | 2421 | |
2422 | // Debugging print | |
4551ea7c | 2423 | if (1 || (!isFake)) { |
69b55c55 | 2424 | Float_t zvertex = GetZ(); |
4551ea7c | 2425 | TTreeSRedirector &cstream = *fDebugStreamer; |
2426 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2427 | cstream << "Seeds1" | |
2428 | << "isFake=" << isFake | |
2429 | << "Vertex=" << zvertex | |
2430 | << "Rieman2.=" << &rieman2 | |
2431 | << "Rieman.=" << &rieman | |
2432 | << "Xref=" << xref | |
2433 | << "X0=" << xcl[0] | |
2434 | << "X1=" << xcl[1] | |
2435 | << "X2=" << xcl[2] | |
2436 | << "X3=" << xcl[3] | |
2437 | << "X4=" << xcl[4] | |
2438 | << "X5=" << xcl[5] | |
2439 | << "Chi2R=" << chi2R | |
2440 | << "Chi2Z=" << chi2Z | |
2441 | << "Chi2RF=" << chi2RF // Chi2 of trackletes on full track | |
2442 | << "Chi2ZF=" << chi2ZF // Chi2 z on tracklets on full track | |
2443 | << "Chi2ZT2=" << chi2ZT2 // Chi2 z on tracklets on full track - rieman tilt | |
2444 | << "Chi2ZTC=" << chi2ZTC // Chi2 z on tracklets on full track - rieman tilt const | |
2445 | << "Chi2TR=" << chi2TR // Chi2 without vertex constrain | |
2446 | << "Chi2TC=" << chi2TC // Chi2 with vertex constrain | |
2447 | << "C=" << curv // Non constrained - no tilt correction | |
2448 | << "DR=" << dR // DR parameter - tilt correction | |
2449 | << "DCA=" << dca // DCA - tilt correction | |
2450 | << "CR=" << cR // Non constrained curvature - tilt correction | |
2451 | << "CC=" << cC // Constrained curvature | |
2452 | << "Polz0=" << polz0c | |
2453 | << "Polz1=" << polz1c | |
2454 | << "RPolz0=" << rpolz0 | |
2455 | << "RPolz1=" << rpolz1 | |
2456 | << "Ncl=" << nclusters | |
2457 | << "Nlayers=" << nlayers | |
2458 | << "NUsedS=" << nusedCl | |
2459 | << "NUsed=" << nusedf | |
2460 | << "Findable=" << findable | |
2461 | << "Like=" << like | |
2462 | << "LikePrim=" << likePrim | |
2463 | << "Likechi2C=" << likechi2C | |
2464 | << "Likechi2TR=" << likechi2TR | |
2465 | << "Likezf=" << likezf | |
2466 | << "LikeF=" << seedquality2[registered] | |
2467 | << "S0.=" << &cseed[0] | |
2468 | << "S1.=" << &cseed[1] | |
2469 | << "S2.=" << &cseed[2] | |
2470 | << "S3.=" << &cseed[3] | |
2471 | << "S4.=" << &cseed[4] | |
2472 | << "S5.=" << &cseed[5] | |
2473 | << "SB0.=" << &seedb[0] | |
2474 | << "SB1.=" << &seedb[1] | |
2475 | << "SB2.=" << &seedb[2] | |
2476 | << "SB3.=" << &seedb[3] | |
2477 | << "SB4.=" << &seedb[4] | |
2478 | << "SB5.=" << &seedb[5] | |
2479 | << "Label=" << label | |
2480 | << "Freq=" << frequency | |
2481 | << "sLayer=" << sLayer | |
2482 | << "\n"; | |
2483 | } | |
69b55c55 | 2484 | } |
4551ea7c | 2485 | |
2486 | if (registered<kMaxSeed - 1) { | |
69b55c55 | 2487 | registered++; |
2488 | cseed = seed[registered]; | |
2489 | } | |
4551ea7c | 2490 | |
2491 | } // End of loop over layer 1 | |
2492 | ||
2493 | } // End of loop over layer 0 | |
2494 | ||
2495 | } // End of loop over layer 3 | |
2496 | ||
2497 | } // End of loop over seeding time bins | |
2498 | ||
69b55c55 | 2499 | // |
4551ea7c | 2500 | // Choose best |
69b55c55 | 2501 | // |
4551ea7c | 2502 | |
69b55c55 | 2503 | TMath::Sort(registered,seedquality2,sort,kTRUE); |
c6f438c0 | 2504 | Bool_t signedseed[kMaxSeed]; |
4551ea7c | 2505 | for (Int_t i = 0; i < registered; i++) { |
2506 | signedseed[i] = kFALSE; | |
69b55c55 | 2507 | } |
4551ea7c | 2508 | |
2509 | for (Int_t iter = 0; iter < 5; iter++) { | |
2510 | ||
2511 | for (Int_t iseed = 0; iseed < registered; iseed++) { | |
2512 | ||
69b55c55 | 2513 | Int_t index = sort[iseed]; |
4551ea7c | 2514 | if (signedseed[index]) { |
2515 | continue; | |
2516 | } | |
69b55c55 | 2517 | Int_t labelsall[1000]; |
4551ea7c | 2518 | Int_t nlabelsall = 0; |
2519 | Int_t naccepted = 0;; | |
2520 | Int_t sLayer = seedlayer[index]; | |
2521 | Int_t ncl = 0; | |
2522 | Int_t nused = 0; | |
2523 | Int_t nlayers = 0; | |
69b55c55 | 2524 | Int_t findable = 0; |
4551ea7c | 2525 | |
2526 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2527 | ||
ca1e1e5b | 2528 | if (TMath::Abs(seed[index][jLayer].GetYref(0) / xcl[jLayer]) < 0.15) { |
69b55c55 | 2529 | findable++; |
4551ea7c | 2530 | } |
2531 | if (seed[index][jLayer].IsOK()) { | |
69b55c55 | 2532 | seed[index][jLayer].UpdateUsed(); |
ca1e1e5b | 2533 | ncl +=seed[index][jLayer].GetN2(); |
2534 | nused +=seed[index][jLayer].GetNUsed(); | |
69b55c55 | 2535 | nlayers++; |
4551ea7c | 2536 | // Cooking label |
2537 | for (Int_t itime = 0; itime < 25; itime++) { | |
ca1e1e5b | 2538 | if (seed[index][jLayer].IsUsable(itime)) { |
69b55c55 | 2539 | naccepted++; |
4551ea7c | 2540 | for (Int_t ilab = 0; ilab < 3; ilab++) { |
ca1e1e5b | 2541 | Int_t tindex = seed[index][jLayer].GetClusters(itime)->GetLabel(ilab); |
4551ea7c | 2542 | if (tindex >= 0) { |
69b55c55 | 2543 | labelsall[nlabelsall] = tindex; |
2544 | nlabelsall++; | |
2545 | } | |
2546 | } | |
2547 | } | |
2548 | } | |
2549 | } | |
4551ea7c | 2550 | |
69b55c55 | 2551 | } |
4551ea7c | 2552 | |
2553 | if (nused > 30) { | |
2554 | continue; | |
69b55c55 | 2555 | } |
4551ea7c | 2556 | |
2557 | if (iter == 0) { | |
2558 | if (nlayers < 6) { | |
2559 | continue; | |
2560 | } | |
2561 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2562 | continue; // Gold | |
2563 | } | |
7ad19338 | 2564 | } |
4551ea7c | 2565 | |
2566 | if (iter == 1) { | |
2567 | if (nlayers < findable) { | |
2568 | continue; | |
2569 | } | |
2570 | if (TMath::Log(0.000000001+seedquality2[index]) < -4.0) { | |
2571 | continue; | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | if (iter == 2) { | |
2576 | if ((nlayers == findable) || | |
2577 | (nlayers == 6)) { | |
2578 | continue; | |
2579 | } | |
2580 | if (TMath::Log(0.000000001+seedquality2[index]) < -6.0) { | |
2581 | continue; | |
2582 | } | |
69b55c55 | 2583 | } |
4551ea7c | 2584 | |
2585 | if (iter == 3) { | |
2586 | if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { | |
2587 | continue; | |
2588 | } | |
69b55c55 | 2589 | } |
4551ea7c | 2590 | |
2591 | if (iter == 4) { | |
2592 | if (TMath::Log(0.000000001+seedquality2[index]) - nused/(nlayers-3.0) < -15.0) { | |
2593 | continue; | |
2594 | } | |
69b55c55 | 2595 | } |
4551ea7c | 2596 | |
69b55c55 | 2597 | signedseed[index] = kTRUE; |
4551ea7c | 2598 | |
2599 | Int_t labels[1000]; | |
2600 | Int_t outlab[1000]; | |
2601 | Int_t nlab = 0; | |
2602 | for (Int_t iLayer = 0; iLayer < 6; iLayer++) { | |
2603 | if (seed[index][iLayer].IsOK()) { | |
ca1e1e5b | 2604 | if (seed[index][iLayer].GetLabels(0) >= 0) { |
2605 | labels[nlab] = seed[index][iLayer].GetLabels(0); | |
69b55c55 | 2606 | nlab++; |
2607 | } | |
ca1e1e5b | 2608 | if (seed[index][iLayer].GetLabels(1) >= 0) { |
2609 | labels[nlab] = seed[index][iLayer].GetLabels(1); | |
69b55c55 | 2610 | nlab++; |
4551ea7c | 2611 | } |
2612 | } | |
7ad19338 | 2613 | } |
69b55c55 | 2614 | Freq(nlab,labels,outlab,kFALSE); |
4551ea7c | 2615 | Int_t label = outlab[0]; |
2616 | Int_t frequency = outlab[1]; | |
69b55c55 | 2617 | Freq(nlabelsall,labelsall,outlab,kFALSE); |
4551ea7c | 2618 | Int_t label1 = outlab[0]; |
2619 | Int_t label2 = outlab[2]; | |
2620 | Float_t fakeratio = (naccepted - outlab[1]) / Float_t(naccepted); | |
2621 | Float_t ratio = Float_t(nused) / Float_t(ncl); | |
2622 | if (ratio < 0.25) { | |
2623 | for (Int_t jLayer = 0; jLayer < 6; jLayer++) { | |
2624 | if ((seed[index][jLayer].IsOK()) && | |
ca1e1e5b | 2625 | (TMath::Abs(seed[index][jLayer].GetYfit(1) - seed[index][jLayer].GetYfit(1)) < 0.2)) { |
4551ea7c | 2626 | seed[index][jLayer].UseClusters(); // Sign gold |
2627 | } | |
69b55c55 | 2628 | } |
7ad19338 | 2629 | } |
4551ea7c | 2630 | |
31fd97b2 | 2631 | 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 | 2632 | TTreeSRedirector &cstream = *fDebugStreamer; |
2633 | ||
69b55c55 | 2634 | // |
4551ea7c | 2635 | // Register seed |
69b55c55 | 2636 | // |
4551ea7c | 2637 | AliTRDtrack *track = RegisterSeed(seed[index],seedparams[index]); |
2638 | AliTRDtrack dummy; | |
2639 | if (!track) { | |
2640 | track = &dummy; | |
2641 | } | |
2642 | else { | |
69b55c55 | 2643 | AliESDtrack esdtrack; |
4551ea7c | 2644 | esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout); |
69b55c55 | 2645 | esdtrack.SetLabel(label); |
2646 | esd->AddTrack(&esdtrack); | |
4551ea7c | 2647 | TTreeSRedirector &cstream = *fDebugStreamer; |
2648 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2649 | cstream << "Tracks" | |
31fd97b2 | 2650 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 2651 | << "ESD.=" << &esdtrack |
2652 | << "trd.=" << track | |
2653 | << "trdback.=" << track | |
2654 | << "\n"; | |
2655 | } | |
7ad19338 | 2656 | } |
4551ea7c | 2657 | |
2658 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
2659 | cstream << "Seeds2" | |
2660 | << "Iter=" << iter | |
2661 | << "Track.=" << track | |
2662 | << "Like=" << seedquality[index] | |
2663 | << "LikeF=" << seedquality2[index] | |
2664 | << "S0.=" << &seed[index][0] | |
2665 | << "S1.=" << &seed[index][1] | |
2666 | << "S2.=" << &seed[index][2] | |
2667 | << "S3.=" << &seed[index][3] | |
2668 | << "S4.=" << &seed[index][4] | |
2669 | << "S5.=" << &seed[index][5] | |
2670 | << "Label=" << label | |
2671 | << "Label1=" << label1 | |
2672 | << "Label2=" << label2 | |
2673 | << "FakeRatio=" << fakeratio | |
2674 | << "Freq=" << frequency | |
2675 | << "Ncl=" << ncl | |
2676 | << "Nlayers=" << nlayers | |
2677 | << "Findable=" << findable | |
2678 | << "NUsed=" << nused | |
2679 | << "sLayer=" << sLayer | |
31fd97b2 | 2680 | << "EventNrInFile=" << eventNrInFile |
4551ea7c | 2681 | << "\n"; |
2682 | } | |
2683 | ||
2684 | } // Loop: iseed | |
2685 | ||
2686 | } // Loop: iter | |
2687 | ||
2688 | } // End of loop over sectors | |
75bd7f81 | 2689 | |
69b55c55 | 2690 | delete [] pseed; |
75bd7f81 | 2691 | |
69b55c55 | 2692 | } |
2693 | ||
5443e65e | 2694 | //_____________________________________________________________________________ |
4551ea7c | 2695 | Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const |
5443e65e | 2696 | { |
2697 | // | |
a819a5f7 | 2698 | // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0) |
2699 | // from the file. The names of the cluster tree and branches | |
2700 | // should match the ones used in AliTRDclusterizer::WriteClusters() | |
2701 | // | |
75bd7f81 | 2702 | |
4551ea7c | 2703 | Int_t nsize = Int_t(clusterTree->GetTotBytes() / (sizeof(AliTRDcluster))); |
6c94f330 | 2704 | TObjArray *clusterArray = new TObjArray(nsize+1000); |
5443e65e | 2705 | |
4551ea7c | 2706 | TBranch *branch = clusterTree->GetBranch("TRDcluster"); |
c630aafd | 2707 | if (!branch) { |
4551ea7c | 2708 | AliError("Can't get the branch !"); |
c630aafd | 2709 | return 1; |
2710 | } | |
029cd327 | 2711 | branch->SetAddress(&clusterArray); |
5443e65e | 2712 | |
a819a5f7 | 2713 | // Loop through all entries in the tree |
4551ea7c | 2714 | Int_t nEntries = (Int_t) clusterTree->GetEntries(); |
2715 | Int_t nbytes = 0; | |
a819a5f7 | 2716 | AliTRDcluster *c = 0; |
a819a5f7 | 2717 | for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) { |
2718 | ||
2719 | // Import the tree | |
4551ea7c | 2720 | nbytes += clusterTree->GetEvent(iEntry); |
5443e65e | 2721 | |
a819a5f7 | 2722 | // Get the number of points in the detector |
029cd327 | 2723 | Int_t nCluster = clusterArray->GetEntriesFast(); |
5443e65e | 2724 | |
a819a5f7 | 2725 | // Loop through all TRD digits |
2726 | for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) { | |
4551ea7c | 2727 | c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster); |
4f1c04d3 | 2728 | AliTRDcluster *co = c; |
a819a5f7 | 2729 | array->AddLast(co); |
4f1c04d3 | 2730 | clusterArray->RemoveAt(iCluster); |
a819a5f7 | 2731 | } |
4551ea7c | 2732 | |
a819a5f7 | 2733 | } |
2734 | ||
029cd327 | 2735 | delete clusterArray; |
5443e65e | 2736 | |
c630aafd | 2737 | return 0; |
75bd7f81 | 2738 | |
a819a5f7 | 2739 | } |
2740 | ||
75bd7f81 | 2741 | //_____________________________________________________________________________ |
4551ea7c | 2742 | Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint &p) const |
3551db50 | 2743 | { |
2744 | // | |
2745 | // Get track space point with index i | |
2746 | // Origin: C.Cheshkov | |
2747 | // | |
2748 | ||
4551ea7c | 2749 | AliTRDcluster *cl = (AliTRDcluster *) fClusters->UncheckedAt(index); |
2750 | Int_t idet = cl->GetDetector(); | |
2751 | Int_t isector = fGeom->GetSector(idet); | |
2752 | Int_t ichamber = fGeom->GetChamber(idet); | |
2753 | Int_t iplan = fGeom->GetPlane(idet); | |
3551db50 | 2754 | Double_t local[3]; |
4551ea7c | 2755 | local[0] = GetX(isector,iplan,cl->GetLocalTimeBin()); |
2756 | local[1] = cl->GetY(); | |
2757 | local[2] = cl->GetZ(); | |
3551db50 | 2758 | Double_t global[3]; |
2759 | fGeom->RotateBack(idet,local,global); | |
2760 | p.SetXYZ(global[0],global[1],global[2]); | |
2761 | AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; | |
2762 | switch (iplan) { | |
2763 | case 0: | |
2764 | iLayer = AliAlignObj::kTRD1; | |
2765 | break; | |
2766 | case 1: | |
2767 | iLayer = AliAlignObj::kTRD2; | |
2768 | break; | |
2769 | case 2: | |
2770 | iLayer = AliAlignObj::kTRD3; | |
2771 | break; | |
2772 | case 3: | |
2773 | iLayer = AliAlignObj::kTRD4; | |
2774 | break; | |
2775 | case 4: | |
2776 | iLayer = AliAlignObj::kTRD5; | |
2777 | break; | |
2778 | case 5: | |
2779 | iLayer = AliAlignObj::kTRD6; | |
2780 | break; | |
2781 | }; | |
4551ea7c | 2782 | Int_t modId = isector * fGeom->Ncham() + ichamber; |
3551db50 | 2783 | UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); |
2784 | p.SetVolumeID(volid); | |
2785 | ||
2786 | return kTRUE; | |
2787 | ||
2788 | } | |
2789 | ||
75bd7f81 | 2790 | //_____________________________________________________________________________ |
4551ea7c | 2791 | void AliTRDtracker::CookLabel(AliKalmanTrack *pt, Float_t wrong) const |
029cd327 | 2792 | { |
2793 | // | |
2794 | // This cooks a label. Mmmmh, smells good... | |
2795 | // | |
46d29e70 | 2796 | |
4551ea7c | 2797 | Int_t label = 123456789; |
2798 | Int_t index; | |
2799 | Int_t i; | |
2800 | Int_t j; | |
2801 | Int_t ncl = pt->GetNumberOfClusters(); | |
2802 | ||
2803 | const Int_t kRange = fTrSec[0]->GetOuterTimeBin() + 1; | |
5443e65e | 2804 | |
029cd327 | 2805 | Bool_t labelAdded; |
46d29e70 | 2806 | |
6c94f330 | 2807 | Int_t **s = new Int_t* [kRange]; |
4551ea7c | 2808 | for (i = 0; i < kRange; i++) { |
d1b06c24 | 2809 | s[i] = new Int_t[2]; |
2810 | } | |
4551ea7c | 2811 | for (i = 0; i < kRange; i++) { |
2812 | s[i][0] = -1; | |
2813 | s[i][1] = 0; | |
46d29e70 | 2814 | } |
2815 | ||
4551ea7c | 2816 | Int_t t0; |
2817 | Int_t t1; | |
2818 | Int_t t2; | |
2819 | ||
2820 | for (i = 0; i < ncl; i++) { | |
2821 | index = pt->GetClusterIndex(i); | |
2822 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
6c94f330 | 2823 | t0=c->GetLabel(0); |
2824 | t1=c->GetLabel(1); | |
2825 | t2=c->GetLabel(2); | |
46d29e70 | 2826 | } |
2827 | ||
4551ea7c | 2828 | for (i = 0; i < ncl; i++) { |
2829 | index = pt->GetClusterIndex(i); | |
2830 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
2831 | for (Int_t k = 0; k < 3; k++) { | |
2832 | label = c->GetLabel(k); | |
2833 | labelAdded = kFALSE; | |
2834 | j = 0; | |
46d29e70 | 2835 | if (label >= 0) { |
4551ea7c | 2836 | while ((!labelAdded) && (j < kRange)) { |
2837 | if ((s[j][0] == label) || | |
2838 | (s[j][1] == 0)) { | |
2839 | s[j][0] = label; | |
2840 | s[j][1] = s[j][1] + 1; | |
2841 | labelAdded = kTRUE; | |
a9814c09 | 2842 | } |
2843 | j++; | |
2844 | } | |
46d29e70 | 2845 | } |
2846 | } | |
2847 | } | |
2848 | ||
4551ea7c | 2849 | Int_t max = 0; |
6c94f330 | 2850 | label = -123456789; |
46d29e70 | 2851 | |
4551ea7c | 2852 | for (i = 0; i < kRange; i++) { |
2853 | if (s[i][1] > max) { | |
2854 | max = s[i][1]; | |
2855 | label = s[i][0]; | |
46d29e70 | 2856 | } |
2857 | } | |
5443e65e | 2858 | |
4551ea7c | 2859 | for (i = 0; i < kRange; i++) { |
6c94f330 | 2860 | delete []s[i]; |
5443e65e | 2861 | } |
2862 | ||
6c94f330 | 2863 | delete []s; |
5443e65e | 2864 | |
4551ea7c | 2865 | if ((1.0 - Float_t(max)/ncl) > wrong) { |
2866 | label = -label; | |
2867 | } | |
5443e65e | 2868 | |
2869 | pt->SetLabel(label); | |
2870 | ||
46d29e70 | 2871 | } |
2872 | ||
75bd7f81 | 2873 | //_____________________________________________________________________________ |
4551ea7c | 2874 | void AliTRDtracker::UseClusters(const AliKalmanTrack *t, Int_t from) const |
029cd327 | 2875 | { |
2876 | // | |
2877 | // Use clusters, but don't abuse them! | |
2878 | // | |
75bd7f81 | 2879 | |
4551ea7c | 2880 | const Float_t kmaxchi2 = 18; |
2881 | const Float_t kmincl = 10; | |
2882 | ||
2883 | AliTRDtrack *track = (AliTRDtrack *) t; | |
2884 | ||
2885 | Int_t ncl = t->GetNumberOfClusters(); | |
2886 | for (Int_t i = from; i < ncl; i++) { | |
2887 | Int_t index = t->GetClusterIndex(i); | |
2888 | AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); | |
69b55c55 | 2889 | Int_t iplane = fGeom->GetPlane(c->GetDetector()); |
27eaf44b | 2890 | if (track->GetTracklets(iplane).GetChi2() > kmaxchi2) { |
4551ea7c | 2891 | continue; |
2892 | } | |
27eaf44b | 2893 | if (track->GetTracklets(iplane).GetN() < kmincl) { |
4551ea7c | 2894 | continue; |
2895 | } | |
2896 | if (!(c->IsUsed())) { | |
2897 | c->Use(); | |
2898 | } | |
5443e65e | 2899 | } |
5443e65e | 2900 | |
75bd7f81 | 2901 | } |
5443e65e | 2902 | |
75bd7f81 | 2903 | //_____________________________________________________________________________ |
029cd327 | 2904 | Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const |
5443e65e | 2905 | { |
75bd7f81 | 2906 | // |
5443e65e | 2907 | // Parametrised "expected" error of the cluster reconstruction in Y |
75bd7f81 | 2908 | // |
5443e65e | 2909 | |
2910 | Double_t s = 0.08 * 0.08; | |
2911 | return s; | |
75bd7f81 | 2912 | |
5443e65e | 2913 | } |
2914 | ||
75bd7f81 | 2915 | //_____________________________________________________________________________ |
029cd327 | 2916 | Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t , Double_t ) const |
0a29d0f1 | 2917 | { |
75bd7f81 | 2918 | // |
5443e65e | 2919 | // Parametrised "expected" error of the cluster reconstruction in Z |
75bd7f81 | 2920 | // |
5443e65e | 2921 | |
4551ea7c | 2922 | Double_t s = 9.0 * 9.0 / 12.0; |
5443e65e | 2923 | return s; |
75bd7f81 | 2924 | |
5443e65e | 2925 | } |
2926 | ||
75bd7f81 | 2927 | //_____________________________________________________________________________ |
029cd327 | 2928 | Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const |
5443e65e | 2929 | { |
2930 | // | |
029cd327 | 2931 | // Returns radial position which corresponds to time bin <localTB> |
5443e65e | 2932 | // in tracking sector <sector> and plane <plane> |
2933 | // | |
2934 | ||
6c94f330 | 2935 | Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, localTB); |
4551ea7c | 2936 | Int_t pl = fTrSec[sector]->GetLayerNumber(index); |
2937 | ||
5443e65e | 2938 | return fTrSec[sector]->GetLayer(pl)->GetX(); |
2939 | ||
2940 | } | |
2941 | ||
75bd7f81 | 2942 | //_____________________________________________________________________________ |
2943 | AliTRDtracker::AliTRDpropagationLayer | |
2944 | ::AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho | |
2945 | , Double_t radLength, Int_t tbIndex, Int_t plane) | |
ad670fba | 2946 | :fN(0) |
2947 | ,fSec(0) | |
2948 | ,fClusters(NULL) | |
2949 | ,fIndex(NULL) | |
2950 | ,fX(x) | |
2951 | ,fdX(dx) | |
2952 | ,fRho(rho) | |
2953 | ,fX0(radLength) | |
2954 | ,fTimeBinIndex(tbIndex) | |
2955 | ,fPlane(plane) | |
2956 | ,fYmax(0) | |
2957 | ,fYmaxSensitive(0) | |
2958 | ,fHole(kFALSE) | |
2959 | ,fHoleZc(0) | |
2960 | ,fHoleZmax(0) | |
2961 | ,fHoleYc(0) | |
2962 | ,fHoleYmax(0) | |
2963 | ,fHoleRho(0) | |
2964 | ,fHoleX0(0) | |
5443e65e | 2965 | { |
0a29d0f1 | 2966 | // |
5443e65e | 2967 | // AliTRDpropagationLayer constructor |
0a29d0f1 | 2968 | // |
46d29e70 | 2969 | |
ad670fba | 2970 | for (Int_t i = 0; i < (Int_t) kZones; i++) { |
2971 | fZc[i] = 0; | |
2972 | fZmax[i] = 0; | |
a819a5f7 | 2973 | } |
5443e65e | 2974 | |
ad670fba | 2975 | if (fTimeBinIndex >= 0) { |
029cd327 | 2976 | fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin]; |
ad670fba | 2977 | fIndex = new UInt_t[kMaxClusterPerTimeBin]; |
a819a5f7 | 2978 | } |
46d29e70 | 2979 | |
ad670fba | 2980 | for (Int_t i = 0; i < 5; i++) { |
2981 | fIsHole[i] = kFALSE; | |
2982 | } | |
5443e65e | 2983 | |
2984 | } | |
2985 | ||
75bd7f81 | 2986 | //_____________________________________________________________________________ |
2987 | void AliTRDtracker::AliTRDpropagationLayer | |
2988 | ::SetHole(Double_t Zmax, Double_t Ymax, Double_t rho | |
2989 | , Double_t radLength, Double_t Yc, Double_t Zc) | |
5443e65e | 2990 | { |
2991 | // | |
2992 | // Sets hole in the layer | |
2993 | // | |
75bd7f81 | 2994 | |
4551ea7c | 2995 | fHole = kTRUE; |
2996 | fHoleZc = Zc; | |
5443e65e | 2997 | fHoleZmax = Zmax; |
4551ea7c | 2998 | fHoleYc = Yc; |
5443e65e | 2999 | fHoleYmax = Ymax; |
4551ea7c | 3000 | fHoleRho = rho; |
3001 | fHoleX0 = radLength; | |
75bd7f81 | 3002 | |
5443e65e | 3003 | } |
46d29e70 | 3004 | |
75bd7f81 | 3005 | //_____________________________________________________________________________ |
3006 | AliTRDtracker::AliTRDtrackingSector | |
ad670fba | 3007 | ::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs) |
3008 | :fN(0) | |
3009 | ,fGeom(geo) | |
3010 | ,fGeomSector(gs) | |
5443e65e | 3011 | { |
3012 | // | |
3013 | // AliTRDtrackingSector Constructor | |
3014 | // | |
75bd7f81 | 3015 | |
7e448bcc | 3016 | AliTRDpadPlane *padPlane = 0; |
3017 | AliTRDpropagationLayer *ppl = 0; | |
a5cadd36 | 3018 | |
ad670fba | 3019 | // Get holes description from geometry |
3c625a9b | 3020 | Bool_t holes[AliTRDgeometry::kNcham]; |
ad670fba | 3021 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3c625a9b | 3022 | holes[icham] = fGeom->IsHole(0,icham,gs); |
3c625a9b | 3023 | } |
3c625a9b | 3024 | |
ad670fba | 3025 | for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { |
3026 | fTimeBinIndex[i] = -1; | |
3027 | } | |
5443e65e | 3028 | |
ad670fba | 3029 | Double_t x; |
3030 | Double_t dx; | |
3031 | Double_t rho; | |
3032 | Double_t radLength; | |
5443e65e | 3033 | |
ad670fba | 3034 | // Add layers for each of the planes |
3035 | Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region | |
a305677e | 3036 | //Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region |
5443e65e | 3037 | |
ad670fba | 3038 | const Int_t kNchambers = AliTRDgeometry::Ncham(); |
a305677e | 3039 | Int_t tbIndex; |
ad670fba | 3040 | Double_t ymax = 0; |
3041 | Double_t ymaxsensitive = 0; | |
3042 | Double_t *zc = new Double_t[kNchambers]; | |
3043 | Double_t *zmax = new Double_t[kNchambers]; | |
3c625a9b | 3044 | Double_t *zmaxsensitive = new Double_t[kNchambers]; |
5443e65e | 3045 | |
ad670fba | 3046 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); |
3047 | if (!commonParam) { | |
030b4415 | 3048 | AliErrorGeneral("AliTRDtrackingSector::Ctor" |
3049 | ,"Could not get common parameters\n"); | |
3551db50 | 3050 | return; |
3051 | } | |
3052 | ||
ad670fba | 3053 | for (Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { |
3054 | ||
3055 | ymax = fGeom->GetChamberWidth(plane) / 2.0; | |
3056 | padPlane = commonParam->GetPadPlane(plane,0); | |
3057 | ymaxsensitive = (padPlane->GetColSize(1) * padPlane->GetNcols() - 4.0) / 2.0; | |
3058 | ||
3059 | for (Int_t ch = 0; ch < kNchambers; ch++) { | |
3060 | zmax[ch] = fGeom->GetChamberLength(plane,ch) / 2.0; | |
3061 | Float_t pad = padPlane->GetRowSize(1); | |
3062 | Float_t row0 = commonParam->GetRow0(plane,ch,0); | |
3063 | Int_t nPads = commonParam->GetRowMax(plane,ch,0); | |
3064 | zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0; | |
3065 | zc[ch] = -(pad * nPads) / 2.0 + row0; | |
5443e65e | 3066 | } |
3067 | ||
ad670fba | 3068 | dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) |
b43a3e17 | 3069 | / commonParam->GetSamplingFrequency(); |
ad670fba | 3070 | rho = 0.00295 * 0.85; //???? |
3071 | radLength = 11.0; | |
5443e65e | 3072 | |
3551db50 | 3073 | Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane); |
a305677e | 3074 | //Double_t xbottom = x0 - dxDrift; |
ad670fba | 3075 | //Double_t xtop = x0 + dxAmp; |
3076 | ||
59393e34 | 3077 | Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
ad670fba | 3078 | for (Int_t iTime = 0; iTime < nTimeBins; iTime++) { |
3079 | ||
3080 | Double_t xlayer = iTime * dx - dxAmp; | |
3081 | //if (xlayer<0) xlayer = dxAmp / 2.0; | |
59393e34 | 3082 | x = x0 - xlayer; |
ad670fba | 3083 | |
3084 | tbIndex = CookTimeBinIndex(plane,iTime); | |
3085 | ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex,plane); | |
3c625a9b | 3086 | ppl->SetYmax(ymax,ymaxsensitive); |
ad670fba | 3087 | ppl->SetZ(zc,zmax,zmaxsensitive); |
3c625a9b | 3088 | ppl->SetHoles(holes); |
59393e34 | 3089 | InsertLayer(ppl); |
ad670fba | 3090 | |
5443e65e | 3091 | } |
ad670fba | 3092 | |
5443e65e | 3093 | } |
3094 | ||
5443e65e | 3095 | MapTimeBinLayers(); |
ad670fba | 3096 | |
029cd327 | 3097 | delete [] zc; |
3098 | delete [] zmax; | |
4f1c04d3 | 3099 | delete [] zmaxsensitive; |
5443e65e | 3100 | |
3101 | } | |
3102 | ||
ad670fba | 3103 | //_____________________________________________________________________________ |
3104 | AliTRDtracker::AliTRDtrackingSector | |
3105 | ::AliTRDtrackingSector(const AliTRDtrackingSector &/*t*/) | |
3106 | :fN(0) | |
3107 | ,fGeom(0) | |
3108 | ,fGeomSector(0) | |
3109 | { | |
3110 | // | |
3111 | // Copy constructor | |
3112 | // | |
3113 | ||
3114 | } | |
3115 | ||
75bd7f81 | 3116 | //_____________________________________________________________________________ |
3117 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3118 | ::CookTimeBinIndex(Int_t plane, Int_t localTB) const | |
5443e65e | 3119 | { |
3120 | // | |
6c94f330 | 3121 | // depending on the digitization parameters calculates "global" |
029cd327 | 3122 | // time bin index for timebin <localTB> in plane <plane> |
5443e65e | 3123 | // |
59393e34 | 3124 | // |
75bd7f81 | 3125 | |
59393e34 | 3126 | Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); |
4551ea7c | 3127 | Int_t gtb = (plane+1) * tbPerPlane - localTB - 1; |
3128 | if (localTB < 0) { | |
3129 | return -1; | |
3130 | } | |
3131 | if (gtb < 0) { | |
3132 | return -1; | |
3133 | } | |
75bd7f81 | 3134 | |
5443e65e | 3135 | return gtb; |
5443e65e | 3136 | |
75bd7f81 | 3137 | } |
5443e65e | 3138 | |
75bd7f81 | 3139 | //_____________________________________________________________________________ |
3140 | void AliTRDtracker::AliTRDtrackingSector | |
3141 | ::MapTimeBinLayers() | |
5443e65e | 3142 | { |
3143 | // | |
3144 | // For all sensitive time bins sets corresponding layer index | |
3145 | // in the array fTimeBins | |
3146 | // | |
3147 | ||
3148 | Int_t index; | |
3149 | ||
4551ea7c | 3150 | for (Int_t i = 0; i < fN; i++) { |
3151 | ||
5443e65e | 3152 | index = fLayers[i]->GetTimeBinIndex(); |
6c94f330 | 3153 | |
4551ea7c | 3154 | if (index < 0) { |
3155 | continue; | |
3156 | } | |
3157 | if (index >= (Int_t) kMaxTimeBinIndex) { | |
3158 | //AliWarning(Form("Index %d exceeds allowed maximum of %d!\n" | |
3159 | // ,index,kMaxTimeBinIndex-1)); | |
5443e65e | 3160 | continue; |
3161 | } | |
4551ea7c | 3162 | |
5443e65e | 3163 | fTimeBinIndex[index] = i; |
4551ea7c | 3164 | |
5443e65e | 3165 | } |
5443e65e | 3166 | |
75bd7f81 | 3167 | } |
5443e65e | 3168 | |
75bd7f81 | 3169 | //_____________________________________________________________________________ |
3170 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3171 | ::GetLayerNumber(Double_t x) const | |
5443e65e | 3172 | { |
3173 | // | |
3174 | // Returns the number of time bin which in radial position is closest to <x> | |
3175 | // | |
3176 | ||
4551ea7c | 3177 | if (x >= fLayers[fN-1]->GetX()) { |
3178 | return fN - 1; | |
3179 | } | |
3180 | if (x <= fLayers[ 0]->GetX()) { | |
3181 | return 0; | |
3182 | } | |
3183 | ||
3184 | Int_t b = 0; | |
3185 | Int_t e = fN - 1; | |
3186 | Int_t m = (b + e) / 2; | |
ad670fba | 3187 | |
4551ea7c | 3188 | for ( ; b < e; m = (b + e) / 2) { |
3189 | if (x > fLayers[m]->GetX()) { | |
3190 | b = m + 1; | |
3191 | } | |
3192 | else { | |
3193 | e = m; | |
3194 | } | |
5443e65e | 3195 | } |
75bd7f81 | 3196 | |
4551ea7c | 3197 | if (TMath::Abs(x - fLayers[m]->GetX()) > TMath::Abs(x - fLayers[m+1]->GetX())) { |
3198 | return m + 1; | |
3199 | } | |
3200 | else { | |
3201 | return m; | |
3202 | } | |
5443e65e | 3203 | |
3204 | } | |
3205 | ||
75bd7f81 | 3206 | //_____________________________________________________________________________ |
3207 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3208 | ::GetInnerTimeBin() const | |
5443e65e | 3209 | { |
3210 | // | |
3211 | // Returns number of the innermost SENSITIVE propagation layer | |
3212 | // | |
3213 | ||
3214 | return GetLayerNumber(0); | |
5443e65e | 3215 | |
75bd7f81 | 3216 | } |
5443e65e | 3217 | |
75bd7f81 | 3218 | //_____________________________________________________________________________ |
3219 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3220 | ::GetOuterTimeBin() const | |
5443e65e | 3221 | { |
3222 | // | |
3223 | // Returns number of the outermost SENSITIVE time bin | |
3224 | // | |
3225 | ||
3226 | return GetLayerNumber(GetNumberOfTimeBins() - 1); | |
46d29e70 | 3227 | |
75bd7f81 | 3228 | } |
5443e65e | 3229 | |
75bd7f81 | 3230 | //_____________________________________________________________________________ |
3231 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3232 | ::GetNumberOfTimeBins() const | |
5443e65e | 3233 | { |
3234 | // | |
3235 | // Returns number of SENSITIVE time bins | |
3236 | // | |
3237 | ||
4551ea7c | 3238 | Int_t tb; |
3239 | Int_t layer; | |
3240 | ||
3241 | for (tb = kMaxTimeBinIndex - 1; tb >= 0; tb--) { | |
5443e65e | 3242 | layer = GetLayerNumber(tb); |
4551ea7c | 3243 | if (layer >= 0) { |
3244 | break; | |
3245 | } | |
5443e65e | 3246 | } |
75bd7f81 | 3247 | |
4551ea7c | 3248 | return tb + 1; |
5443e65e | 3249 | |
75bd7f81 | 3250 | } |
5443e65e | 3251 | |
75bd7f81 | 3252 | //_____________________________________________________________________________ |
3253 | void AliTRDtracker::AliTRDtrackingSector | |
4551ea7c | 3254 | ::InsertLayer(AliTRDpropagationLayer *pl) |
5443e65e | 3255 | { |
3256 | // | |
3257 | // Insert layer <pl> in fLayers array. | |
3258 | // Layers are sorted according to X coordinate. | |
75bd7f81 | 3259 | // |
5443e65e | 3260 | |
4551ea7c | 3261 | if (fN == ((Int_t) kMaxLayersPerSector)) { |
3262 | //AliWarning("Too many layers !\n"); | |
3263 | return; | |
3264 | } | |
3265 | ||
3266 | if (fN == 0) { | |
3267 | fLayers[fN++] = pl; | |
ad670fba | 3268 | return; |
3269 | } | |
3270 | ||
4551ea7c | 3271 | Int_t i = Find(pl->GetX()); |
3272 | ||
3273 | memmove(fLayers+i+1,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*)); | |
3274 | ||
3275 | fLayers[i] = pl; | |
3276 | fN++; | |
5443e65e | 3277 | |
3278 | } | |
3279 | ||
75bd7f81 | 3280 | //_____________________________________________________________________________ |
3281 | Int_t AliTRDtracker::AliTRDtrackingSector | |
3282 | ::Find(Double_t x) const | |
5443e65e | 3283 | { |
3284 | // | |
3285 | // Returns index of the propagation layer nearest to X | |
3286 | // | |
3287 | ||
4551ea7c | 3288 | if (x <= fLayers[0]->GetX()) { |
3289 | return 0; | |
3290 | } | |
3291 | ||
3292 | if (x > fLayers[fN-1]->GetX()) { | |
3293 | return fN; | |
3294 | } | |
3295 | ||
3296 | Int_t b = 0; | |
3297 | Int_t e = fN-1; | |
3298 | Int_t m = (b + e) / 2; | |
3299 | ||
3300 | for (; b < e; m = (b + e) / 2) { | |
3301 | if (x > fLayers[m]->GetX()) { | |
3302 | b = m + 1; | |
3303 | } | |
3304 | else { | |
3305 | e = m; | |
3306 | } | |
5443e65e | 3307 | } |
7ad19338 | 3308 | |
75bd7f81 | 3309 | return m; |
7ad19338 | 3310 | |
75bd7f81 | 3311 | } |
7ad19338 | 3312 | |
75bd7f81 | 3313 | //_____________________________________________________________________________ |
3314 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3315 | ::SetZ(Double_t *center, Double_t *w, Double_t *wsensitive ) |
3c625a9b | 3316 | { |
3317 | // | |
6c94f330 | 3318 | // set centers and the width of sectors |
75bd7f81 | 3319 | // |
3320 | ||
4551ea7c | 3321 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { |
3322 | fZc[icham] = center[icham]; | |
3323 | fZmax[icham] = w[icham]; | |
3c625a9b | 3324 | fZmaxSensitive[icham] = wsensitive[icham]; |
3c625a9b | 3325 | } |
75bd7f81 | 3326 | |
3c625a9b | 3327 | } |
5443e65e | 3328 | |
75bd7f81 | 3329 | //_____________________________________________________________________________ |
3c625a9b | 3330 | void AliTRDtracker::AliTRDpropagationLayer::SetHoles(Bool_t *holes) |
3331 | { | |
3332 | // | |
6c94f330 | 3333 | // set centers and the width of sectors |
75bd7f81 | 3334 | // |
3335 | ||
3c625a9b | 3336 | fHole = kFALSE; |
4551ea7c | 3337 | |
3338 | for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { | |
3c625a9b | 3339 | fIsHole[icham] = holes[icham]; |
4551ea7c | 3340 | if (holes[icham]) { |
3341 | fHole = kTRUE; | |
3342 | } | |
3c625a9b | 3343 | } |
5443e65e | 3344 | |
75bd7f81 | 3345 | } |
5443e65e | 3346 | |
75bd7f81 | 3347 | //_____________________________________________________________________________ |
3348 | void AliTRDtracker::AliTRDpropagationLayer | |
4551ea7c | 3349 | ::InsertCluster(AliTRDcluster *c, UInt_t index) |
75bd7f81 | 3350 | { |
3351 | // | |
3352 | // Insert cluster in cluster array. | |
3353 | // Clusters are sorted according to Y coordinate. | |
3354 | // | |
5443e65e | 3355 | |
4551ea7c | 3356 | if (fTimeBinIndex < 0) { |
3357 | //AliWarning("Attempt to insert cluster into non-sensitive time bin!\n"); | |
3358 | return; | |
3359 | } | |
3360 | ||
3361 | if (fN == (Int_t) kMaxClusterPerTimeBin) { | |
3362 | //AliWarning("Too many clusters !\n"); | |
5443e65e | 3363 | return; |
3364 | } | |
ad670fba | 3365 | |
4551ea7c | 3366 | if (fN == 0) { |
3367 | fIndex[0] = index; | |
3368 | fClusters[fN++] = c; | |
ad670fba | 3369 | return; |
3370 | } | |
4551ea7c | 3371 | |
3372 | Int_t i = Find(c->GetY()); | |
3373 | memmove(fClusters+i+1,fClusters+i,(fN-i)*sizeof(AliTRDcluster*)); | |
3374 | memmove(fIndex +i+1,fIndex +i,(fN-i)*sizeof(UInt_t)); | |
3375 | fIndex[i] = index; | |
3376 | fClusters[i] = c; | |
3377 | fN++; | |
5443e65e | 3378 | |
75bd7f81 | 3379 | } |
5443e65e | 3380 | |
75bd7f81 | 3381 | //_____________________________________________________________________________ |
3382 | Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const | |
3383 | { | |
3384 | // | |
3385 | // Returns index of the cluster nearest in Y | |
3386 | // | |
5443e65e | 3387 | |
4551ea7c | 3388 | if (fN <= 0) { |
3389 | return 0; | |
3390 | } | |
3391 | if (y <= fClusters[0]->GetY()) { | |
3392 | return 0; | |
3393 | } | |
3394 | if (y > fClusters[fN-1]->GetY()) { | |
3395 | return fN; | |
3396 | } | |
3397 | ||
3398 | Int_t b = 0; | |
3399 | Int_t e = fN - 1; | |
3400 | Int_t m = (b + e) / 2; | |
3401 | ||
3402 | for ( ; b < e; m = (b + e) / 2) { | |
3403 | if (y > fClusters[m]->GetY()) { | |
3404 | b = m + 1; | |
3405 | } | |
3406 | else { | |
3407 | e = m; | |
3408 | } | |
5443e65e | 3409 | } |
75bd7f81 | 3410 | |
5443e65e | 3411 | return m; |
75bd7f81 | 3412 | |
5443e65e | 3413 | } |
3414 | ||
75bd7f81 | 3415 | //_____________________________________________________________________________ |
3416 | Int_t AliTRDtracker::AliTRDpropagationLayer | |
3417 | ::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad | |
3418 | , Float_t maxroadz) const | |
7ad19338 | 3419 | { |
3420 | // | |
3421 | // Returns index of the cluster nearest to the given y,z | |
3422 | // | |
75bd7f81 | 3423 | |
4551ea7c | 3424 | Int_t index = -1; |
3425 | Int_t maxn = fN; | |
69b55c55 | 3426 | Float_t mindist = maxroad; |
4551ea7c | 3427 | |
3428 | for (Int_t i = Find(y-maxroad); i < maxn; i++) { | |
3429 | AliTRDcluster *c = (AliTRDcluster *) (fClusters[i]); | |
69b55c55 | 3430 | Float_t ycl = c->GetY(); |
4551ea7c | 3431 | if (ycl > (y + maxroad)) { |
3432 | break; | |
3433 | } | |
3434 | if (TMath::Abs(c->GetZ() - z) > maxroadz) { | |
3435 | continue; | |
3436 | } | |
3437 | if (TMath::Abs(ycl - y) < mindist) { | |
3438 | mindist = TMath::Abs(ycl - y); | |
3439 | index = fIndex[i]; | |
3440 | } | |
6c94f330 | 3441 | } |
75bd7f81 | 3442 | |
7ad19338 | 3443 | return index; |
7ad19338 | 3444 | |
75bd7f81 | 3445 | } |
7ad19338 | 3446 | |
75bd7f81 | 3447 | //_____________________________________________________________________________ |
4551ea7c | 3448 | Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c) |
75bd7f81 | 3449 | { |
3450 | // | |
3451 | // Returns correction factor for tilted pads geometry | |
3452 | // | |
5443e65e | 3453 | |
4551ea7c | 3454 | Int_t det = c->GetDetector(); |
3455 | Int_t plane = fGeom->GetPlane(det); | |
3551db50 | 3456 | AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(plane,0); |
4551ea7c | 3457 | Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); |
b8dc2353 | 3458 | |
4551ea7c | 3459 | if (fNoTilt) { |
3460 | h01 = 0; | |
3461 | } | |
75bd7f81 | 3462 | |
fd621f36 | 3463 | return h01; |
5443e65e | 3464 | |
75bd7f81 | 3465 | } |
c630aafd | 3466 | |
75bd7f81 | 3467 | //_____________________________________________________________________________ |
4551ea7c | 3468 | void AliTRDtracker::CookdEdxTimBin(AliTRDtrack &TRDtrack) |
eab5961e | 3469 | { |
75bd7f81 | 3470 | // |
dab811d0 | 3471 | // Build the information needed for TRD PID calculations. This are: |
3472 | // - dE/dx - total | |
3473 | // - dE/dx - slices (0-14, 15-22, NONE). The Edep per slice is | |
3474 | // calculated as the sum of clusters charge weighted with average | |
3475 | // value from the <PH> spectrum | |
3476 | // - Time bin for Max. Cluster | |
3477 | // | |
3478 | // Authors: | |
eab5961e | 3479 | // Prashant Shukla (shukla@physi.uni-heidelberg.de) |
dab811d0 | 3480 | // Alex Bercuci (a.bercuci@gsi.de) |
eab5961e | 3481 | |
6d45eaef | 3482 | Double_t clscharge[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; |
3483 | Double_t maxclscharge[AliESDtrack::kNPlane]; | |
3484 | Int_t nCluster[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; | |
3485 | Int_t timebin[AliESDtrack::kNPlane]; | |
3486 | ||
dab811d0 | 3487 | // Initialization of variables |
6d45eaef | 3488 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
3489 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { | |
dab811d0 | 3490 | clscharge[iPlane][iSlice] = 0.; |
4551ea7c | 3491 | nCluster[iPlane][iSlice] = 0; |
6d45eaef | 3492 | } |
4551ea7c | 3493 | timebin[iPlane] = -1; |
eab5961e | 3494 | maxclscharge[iPlane] = 0.0; |
3495 | } | |
3496 | ||
dab811d0 | 3497 | // Average PH spectrum used for weighting the edep. It has to |
3498 | // come eather from caligration DB or as parameter of the class. To | |
3499 | // be discuss with software responsibles | |
3500 | const Float_t fAveragePH[] = { 5.010e-03, 2.017e-02, 6.221e-02, 6.706e-02 | |
3501 | , 5.551e-02, 4.812e-02, 4.395e-02, 4.219e-02 | |
3502 | , 4.172e-02, 4.156e-02, 4.162e-02, 4.204e-02 | |
3503 | , 4.278e-02, 4.367e-02, 4.460e-02, 4.554e-02 | |
3504 | , 4.674e-02, 4.810e-02, 5.005e-02, 5.258e-02 | |
3505 | , 5.587e-02, 5.892e-02, 5.587e-02, 5.258e-02 }; | |
3506 | ||
eab5961e | 3507 | // Loop through all clusters associated to track TRDtrack |
dab811d0 | 3508 | AliTRDcluster *pTRDcluster = 0x0; |
3509 | for (Int_t iClus = 0; iClus < TRDtrack.GetNumberOfClusters(); iClus++) { | |
eab5961e | 3510 | Double_t charge = TRDtrack.GetClusterdQdl(iClus); |
4551ea7c | 3511 | Int_t index = TRDtrack.GetClusterIndex(iClus); |
dab811d0 | 3512 | if (!(pTRDcluster = (AliTRDcluster*)GetCluster(index))) continue; |
3513 | ||
3514 | // check negative time bins ?!?!? | |
3515 | Int_t tb = pTRDcluster->GetLocalTimeBin(); | |
3516 | ||
3517 | // temporary until fix in GetT0 | |
3518 | if(tb<0){ | |
3519 | Warning("CookdEdxTimBin()", Form("Negative time bin value in track %d cluster %d", TRDtrack.GetLabel(), iClus)); | |
3520 | continue; | |
3521 | } | |
3522 | ||
4551ea7c | 3523 | Int_t detector = pTRDcluster->GetDetector(); |
3524 | Int_t iPlane = fGeom->GetPlane(detector); | |
dab811d0 | 3525 | |
3526 | // 2 slices method | |
3527 | Int_t iSlice = (tb < AliTRDtrack::kMidTimeBin) ? 0 : 1; | |
3528 | // weighted edep with <PH> | |
3529 | clscharge[iPlane][iSlice] += charge * fAveragePH[tb]; | |
4551ea7c | 3530 | if (charge > maxclscharge[iPlane]) { |
eab5961e | 3531 | maxclscharge[iPlane] = charge; |
4551ea7c | 3532 | timebin[iPlane] = tb; |
eab5961e | 3533 | } |
6d45eaef | 3534 | nCluster[iPlane][iSlice]++; |
4551ea7c | 3535 | } // End of loop over cluster |
eab5961e | 3536 | |
dab811d0 | 3537 | // Setting the fdEdxPlane and fTimBinPlane variables |
3538 | Double_t totalCharge = 0.; | |
f122c485 | 3539 | for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { |
dab811d0 | 3540 | for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { |
3541 | //if (nCluster[iPlane][iSlice]) { | |
3542 | // clscharge[iPlane][iSlice] /= nCluster[iPlane][iSlice]; | |
3543 | //} | |
4551ea7c | 3544 | TRDtrack.SetPIDsignals(clscharge[iPlane][iSlice],iPlane,iSlice); |
dab811d0 | 3545 | totalCharge += clscharge[iPlane][iSlice]; |
bd50219c | 3546 | } |
dab811d0 | 3547 | TRDtrack.SetPIDTimBin(timebin[iPlane],iPlane); |
eab5961e | 3548 | } |
75bd7f81 | 3549 | } |
c630aafd | 3550 | |
75bd7f81 | 3551 | //_____________________________________________________________________________ |
3552 | Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1 | |
4551ea7c | 3553 | , AliTRDtrack *track |
3554 | , Int_t *clusters, AliTRDtracklet &tracklet) | |
4f1c04d3 | 3555 | { |
6c94f330 | 3556 | // |
4f1c04d3 | 3557 | // |
75bd7f81 | 3558 | // Try to find nearest clusters to the track in timebins from t0 to t1 |
4f1c04d3 | 3559 | // |
4551ea7c | 3560 | // Correction coeficients - depend on TRD parameters - to be changed accordingly |
3561 | // | |
3562 | ||
3563 | Double_t x[100]; | |
3564 | Double_t yt[100]; | |
3565 | Double_t zt[100]; | |
3566 | Double_t xmean = 0.0; // Reference x | |
3567 | Double_t dz[10][100]; | |
3568 | Double_t dy[10][100]; | |
3569 | Float_t zmean[100]; | |
3570 | Float_t nmean[100]; | |
3571 | Int_t clfound = 0; | |
3572 | Int_t indexes[10][100]; // Indexes of the clusters in the road | |
3573 | Int_t best[10][100]; // Index of best matching cluster | |
3574 | AliTRDcluster *cl[10][100]; // Pointers to the clusters in the road | |
3575 | ||
3576 | for (Int_t it = 0; it < 100; it++) { | |
3577 | x[it] = 0.0; | |
3578 | yt[it] = 0.0; | |
3579 | zt[it] = 0.0; | |
3580 | clusters[it] = -2; | |
3581 | zmean[it] = 0.0; | |
3582 | nmean[it] = 0.0; | |
3583 | for (Int_t ih = 0; ih < 10;ih++) { | |
3584 | indexes[ih][it] = -2; // Reset indexes1 | |
3585 | cl[ih][it] = 0; | |
3586 | dz[ih][it] = -100.0; | |
3587 | dy[ih][it] = -100.0; | |
3588 | best[ih][it] = 0; | |
3589 | } | |
3590 | } | |
ad670fba | 3591 | |
4551ea7c | 3592 | Double_t x0 = track->GetX(); |
3593 | Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2())); | |
3594 | Int_t nall = 0; | |
3595 | Int_t nfound = 0; | |
3596 | Double_t h01 = 0.0; | |
3597 | Int_t plane = -1; | |
3598 | Int_t detector = -1; | |
3599 | Float_t padlength = 0.0; | |
3600 | AliTRDtrack track2(* track); | |
3601 | Float_t snpy = track->GetSnp(); | |
3602 | Float_t tany = TMath::Sqrt(snpy*snpy / (1.0 - snpy*snpy)); | |
3603 | if (snpy < 0.0) { | |
3604 | tany *= -1.0; | |
3605 | } | |
ad670fba | 3606 | |
4551ea7c | 3607 | Double_t sy2 = ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt()); |
3608 | Double_t sz2 = ExpectedSigmaZ2(x0,track->GetTgl()); | |
3609 | Double_t road = 15.0 * TMath::Sqrt(track->GetSigmaY2() + sy2); | |
3610 | if (road > 6.0) { | |
3611 | road = 6.0; | |
3612 | } | |
7e448bcc | 3613 | //road = 20.0; |
4551ea7c | 3614 | |
3615 | for (Int_t it = 0; it < t1-t0; it++) { | |
3616 | ||
3617 | Double_t maxChi2[2] = { fgkMaxChi2, fgkMaxChi2 }; | |
3618 | AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(it+t0)); | |
3619 | if (timeBin == 0) { | |
3620 | continue; // No indexes1 | |
6c94f330 | 3621 | } |
4551ea7c | 3622 | |
3623 | Int_t maxn = timeBin; | |
3624 | x[it] = timeBin.GetX(); | |
7ad19338 | 3625 | track2.PropagateTo(x[it]); |
6c94f330 | 3626 | yt[it] = track2.GetY(); |
3627 | zt[it] = track2.GetZ(); | |
7ad19338 | 3628 | |
4551ea7c | 3629 | Double_t y = yt[it]; |
3630 | Double_t z = zt[it]; | |
3631 | Double_t chi2 = 1000000.0; | |
4f1c04d3 | 3632 | nall++; |
4551ea7c | 3633 | |
4f1c04d3 | 3634 | // |
4551ea7c | 3635 | // Find 2 nearest cluster at given time bin |
6c94f330 | 3636 | // |
7e448bcc | 3637 | int checkPoint[4] = {0,0,0,0}; |
3638 | double minY = 123456789; | |
3639 | double minD[2] = {1,1}; | |
3640 | ||
4551ea7c | 3641 | for (Int_t i = timeBin.Find(y - road); i < maxn; i++) { |
7e448bcc | 3642 | //for (Int_t i = 0; i < maxn; i++) { |
4551ea7c | 3643 | |
3644 | AliTRDcluster *c = (AliTRDcluster *) (timeBin[i]); | |
7ad19338 | 3645 | h01 = GetTiltFactor(c); |
4551ea7c | 3646 | if (plane < 0) { |
c6f438c0 | 3647 | Int_t det = c->GetDetector(); |
4551ea7c | 3648 | plane = fGeom->GetPlane(det); |
3649 | padlength = TMath::Sqrt(c->GetSigmaZ2() * 12.0); | |
3650 | } | |
7e448bcc | 3651 | |
4551ea7c | 3652 | //if (c->GetLocalTimeBin()==0) continue; |
3653 | if (c->GetY() > (y + road)) { | |
3654 | break; | |
3655 | } | |
7e448bcc | 3656 | |
3657 | fHDeltaX->Fill(c->GetX() - x[it]); | |
3658 | //printf("%f\t%f\t%f \n", c->GetX(), x[it], c->GetX()-x[it]); | |
3659 | ||
3660 | if (TMath::Abs(c->GetY()-y) < TMath::Abs(minY)) { | |
3661 | minY = c->GetY()-y; | |
3662 | minD[0] = c->GetY()-y; | |
3663 | minD[1] = c->GetZ()-z; | |
3664 | } | |
3665 | ||
3666 | checkPoint[0]++; | |
3667 | ||
3668 | fHMinZ->Fill(c->GetZ() - z); | |
3669 | if ((c->GetZ() - z) * (c->GetZ() - z) > 2 * (12.0 * sz2)) { | |
4551ea7c | 3670 | continue; |
7ad19338 | 3671 | } |
7e448bcc | 3672 | checkPoint[1]++; |
7ad19338 | 3673 | |
4551ea7c | 3674 | Double_t dist = TMath::Abs(c->GetZ() - z); |
7e448bcc | 3675 | if (dist > (0.5 * padlength + 6.0 * sigmaz)) { // 0.5 |
4551ea7c | 3676 | continue; // 6 sigma boundary cut |
3677 | } | |
7e448bcc | 3678 | checkPoint[2]++; |
3679 | ||
4551ea7c | 3680 | Double_t cost = 0.0; |
3681 | // Sigma boundary cost function | |
3682 | if (dist> (0.5 * padlength - sigmaz)){ | |
3683 | cost = (dist - 0.5*padlength) / (2.0 * sigmaz); | |
3684 | if (cost > -1) { | |
3685 | cost = (cost + 1.0) * (cost + 1.0); | |
3686 | } | |
3687 | else { | |
3688 | cost = 0.0; | |
3689 | } | |
3690 | } | |
3691 | //Int_t label = TMath::Abs(track->GetLabel()); | |
3692 | //if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue; | |
3693 | chi2 = track2.GetPredictedChi2(c,h01) + cost; | |
7ad19338 | 3694 | clfound++; |
6c94f330 | 3695 | |
4551ea7c | 3696 | if (chi2 > maxChi2[1]) { |
3697 | continue; | |
3698 | } | |
7e448bcc | 3699 | checkPoint[3]++; |
3700 | ||
4551ea7c | 3701 | detector = c->GetDetector(); |
3702 | // Store the clusters in the road | |
3703 | for (Int_t ih = 2; ih < 9; ih++) { | |
3704 | if (cl[ih][it] == 0) { | |
3705 | cl[ih][it] = c; | |
3706 | indexes[ih][it] = timeBin.GetIndex(i); // Index - 9 - reserved for outliers | |
7ad19338 | 3707 | break; |
3708 | } | |
4f1c04d3 | 3709 | } |
4551ea7c | 3710 | |
3711 | if (chi2 < maxChi2[0]) { | |
7ad19338 | 3712 | maxChi2[1] = maxChi2[0]; |
3713 | maxChi2[0] = chi2; | |
3714 | indexes[1][it] = indexes[0][it]; | |
3715 | cl[1][it] = cl[0][it]; | |
3716 | indexes[0][it] = timeBin.GetIndex(i); | |
3717 | cl[0][it] = c; | |
3718 | continue; | |
3719 | } | |
4551ea7c | 3720 | maxChi2[1] = chi2; |
3721 | cl[1][it] = c; | |
3722 | indexes[1][it] = timeBin.GetIndex(i); | |
3723 | ||
3724 | } | |
7e448bcc | 3725 | |
3726 | for(int iCheckPoint = 0; iCheckPoint<4; iCheckPoint++) | |
3727 | fHFindCl[iCheckPoint]->Fill(checkPoint[iCheckPoint]); | |
3728 | ||
3729 | if (checkPoint[3]) { | |
3730 | if (track->GetPt() > 0) fHMinYPos->Fill(minY); | |
3731 | else fHMinYNeg->Fill(minY); | |
3732 | ||
3733 | fHMinD->Fill(minD[0], minD[1]); | |
3734 | } | |
4551ea7c | 3735 | |
3736 | if (cl[0][it]) { | |
7ad19338 | 3737 | nfound++; |
3738 | xmean += x[it]; | |
3739 | } | |
4551ea7c | 3740 | |
4f1c04d3 | 3741 | } |
4551ea7c | 3742 | |
3743 | if (nfound < 4) { | |
3744 | return 0; | |
3745 | } | |
3746 | xmean /= Float_t(nfound); // Middle x | |
3747 | track2.PropagateTo(xmean); // Propagate track to the center | |
3748 | ||
4f1c04d3 | 3749 | // |
4551ea7c | 3750 | // Choose one of the variants |
7ad19338 | 3751 | // |
4551ea7c | 3752 | Int_t changes[10]; |
3753 | Float_t sumz = 0.0; | |
3754 | Float_t sum = 0.0; | |
3755 | Double_t sumdy = 0.0; | |
3756 | Double_t sumdy2 = 0.0; | |
3757 | Double_t sumx = 0.0; | |
3758 | Double_t sumxy = 0.0; | |
3759 | Double_t sumx2 = 0.0; | |
3760 | Double_t mpads = 0.0; | |
3761 | ||
3762 | Int_t ngood[10]; | |
3763 | Int_t nbad[10]; | |
3764 | ||
7ad19338 | 3765 | Double_t meanz[10]; |
4551ea7c | 3766 | Double_t moffset[10]; // Mean offset |
3767 | Double_t mean[10]; // Mean value | |
3768 | Double_t angle[10]; // Angle | |
3769 | ||
3770 | Double_t smoffset[10]; // Sigma of mean offset | |
3771 | Double_t smean[10]; // Sigma of mean value | |
3772 | Double_t sangle[10]; // Sigma of angle | |
3773 | Double_t smeanangle[10]; // Correlation | |
3774 | ||
7ad19338 | 3775 | Double_t sigmas[10]; |
4551ea7c | 3776 | Double_t tchi2s[10]; // Chi2s for tracklet |
ad670fba | 3777 | |
4551ea7c | 3778 | for (Int_t it = 0; it < 10; it++) { |
ad670fba | 3779 | |
4551ea7c | 3780 | ngood[it] = 0; |
3781 | nbad[it] = 0; | |
3782 | ||
3783 | meanz[it] = 0.0; | |
3784 | moffset[it] = 0.0; // Mean offset | |
3785 | mean[it] = 0.0; // Mean value | |
3786 | angle[it] = 0.0; // Angle | |
3787 | ||
7e448bcc | 3788 | smoffset[it] = 1.0e5; // Sigma of mean offset |
3789 | smean[it] = 1.0e5; // Sigma of mean value | |
3790 | sangle[it] = 1.0e5; // Sigma of angle | |
4551ea7c | 3791 | smeanangle[it] = 0.0; // Correlation |
3792 | ||
7e448bcc | 3793 | sigmas[it] = 1.0e5; |
3794 | tchi2s[it] = 1.0e5; // Chi2s for tracklet | |
75bd7f81 | 3795 | |
3796 | } | |
3797 | ||
7ad19338 | 3798 | // |
4551ea7c | 3799 | // Calculate zmean |
7ad19338 | 3800 | // |
4551ea7c | 3801 | for (Int_t it = 0; it < t1 - t0; it++) { |
3802 | if (!cl[0][it]) { | |
3803 | continue; | |
3804 | } | |
3805 | for (Int_t dt = -3; dt <= 3; dt++) { | |
3806 | if (it+dt < 0) { | |
3807 | continue; | |
3808 | } | |
3809 | if (it+dt > t1-t0) { | |
3810 | continue; | |
3811 | } | |
3812 | if (!cl[0][it+dt]) { | |
3813 | continue; | |
3814 | } | |
3815 | zmean[it] += cl[0][it+dt]->GetZ(); | |
3816 | nmean[it] += 1.0; | |
7ad19338 | 3817 | } |
4551ea7c | 3818 | zmean[it] /= nmean[it]; |
7ad19338 | 3819 | } |
4551ea7c | 3820 | |
3821 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3822 | ||
3823 | best[0][it] = 0; | |
3824 | ||
3825 | for (Int_t ih = 0; ih < 10; ih++) { | |
3826 | dz[ih][it] = -100.0; | |
3827 | dy[ih][it] = -100.0; | |
3828 | if (!cl[ih][it]) { | |
3829 | continue; | |
3830 | } | |
3831 | Double_t xcluster = cl[ih][it]->GetX(); | |
3832 | Double_t ytrack; | |
3833 | Double_t ztrack; | |
3834 | track2.GetProlongation(xcluster,ytrack,ztrack ); | |
3835 | dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // Calculate distance from track in z | |
3836 | dy[ih][it] = cl[ih][it]->GetY() + dz[ih][it]*h01 - ytrack; // and in y | |
7ad19338 | 3837 | } |
4551ea7c | 3838 | |
3839 | // Minimize changes | |
3840 | if (!cl[0][it]) { | |
3841 | continue; | |
3842 | } | |
3843 | if ((TMath::Abs(cl[0][it]->GetZ()-zmean[it]) > padlength * 0.8) && | |
3844 | (cl[1][it])) { | |
3845 | if (TMath::Abs(cl[1][it]->GetZ()-zmean[it]) < padlength * 0.5) { | |
3846 | best[0][it] = 1; | |
4f1c04d3 | 3847 | } |
4551ea7c | 3848 | } |
3849 | ||
7ad19338 | 3850 | } |
4551ea7c | 3851 | |
7ad19338 | 3852 | // |
4551ea7c | 3853 | // Iterative choice of "best path" |
6c94f330 | 3854 | // |
4551ea7c | 3855 | Int_t label = TMath::Abs(track->GetLabel()); |
3856 | Int_t bestiter = 0; | |
3857 | ||
3858 | for (Int_t iter = 0; iter < 9; iter++) { | |
3859 | ||
3860 | changes[iter] = 0; | |
3861 | sumz = 0; | |
3862 | sum = 0; | |
3863 | sumdy = 0; | |
3864 | sumdy2 = 0; | |
3865 | sumx = 0; | |
3866 | sumx2 = 0; | |
3867 | sumxy = 0; | |
3868 | mpads = 0; | |
3869 | ngood[iter] = 0; | |
3870 | nbad[iter] = 0; | |
3871 | ||
3872 | // Linear fit | |
3873 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3874 | ||
3875 | if (!cl[best[iter][it]][it]) { | |
3876 | continue; | |
3877 | } | |
3878 | ||
3879 | // Calculates pad-row changes | |
3880 | Double_t zbefore = cl[best[iter][it]][it]->GetZ(); | |
3881 | Double_t zafter = cl[best[iter][it]][it]->GetZ(); | |
3882 | for (Int_t itd = it - 1; itd >= 0; itd--) { | |
7ad19338 | 3883 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3884 | zbefore = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3885 | break; |
3886 | } | |
3887 | } | |
4551ea7c | 3888 | for (Int_t itd = it + 1; itd < t1 - t0; itd++) { |
7ad19338 | 3889 | if (cl[best[iter][itd]][itd]) { |
4551ea7c | 3890 | zafter = cl[best[iter][itd]][itd]->GetZ(); |
7ad19338 | 3891 | break; |
3892 | } | |
3893 | } | |
4551ea7c | 3894 | if ((TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore) > 0.1) && |
3895 | (TMath::Abs(cl[best[iter][it]][it]->GetZ()- zafter) > 0.1)) { | |
3896 | changes[iter]++; | |
3897 | } | |
3898 | ||
3899 | Double_t dx = x[it]-xmean; // Distance to reference x | |
3900 | sumz += cl[best[iter][it]][it]->GetZ(); | |
4f1c04d3 | 3901 | sum++; |
4551ea7c | 3902 | sumdy += dy[best[iter][it]][it]; |
3903 | sumdy2 += dy[best[iter][it]][it]*dy[best[iter][it]][it]; | |
3904 | sumx += dx; | |
3905 | sumx2 += dx*dx; | |
7ad19338 | 3906 | sumxy += dx*dy[best[iter][it]][it]; |
4551ea7c | 3907 | mpads += cl[best[iter][it]][it]->GetNPads(); |
3908 | if ((cl[best[iter][it]][it]->GetLabel(0) == label) || | |
3909 | (cl[best[iter][it]][it]->GetLabel(1) == label) || | |
3910 | (cl[best[iter][it]][it]->GetLabel(2) == label)) { | |
7ad19338 | 3911 | ngood[iter]++; |
4f1c04d3 | 3912 | } |
4551ea7c | 3913 | else { |
7ad19338 | 3914 | nbad[iter]++; |
4f1c04d3 | 3915 | } |
4551ea7c | 3916 | |
4f1c04d3 | 3917 | } |
4551ea7c | 3918 | |
7ad19338 | 3919 | // |
6c94f330 | 3920 | // calculates line parameters |
7ad19338 | 3921 | // |
4551ea7c | 3922 | Double_t det = sum*sumx2 - sumx*sumx; |
3923 | angle[iter] = (sum*sumxy - sumx*sumdy) / det; | |
3924 | mean[iter] = (sumx2*sumdy - sumx*sumxy) / det; | |
3925 | meanz[iter] = sumz / sum; | |
3926 | moffset[iter] = sumdy / sum; | |
3927 | mpads /= sum; // Mean number of pads | |
3928 | ||
3929 | Double_t sigma2 = 0.0; // Normalized residuals - for line fit | |
3930 | Double_t sigma1 = 0.0; // Normalized residuals - constant fit | |
3931 | ||
3932 | for (Int_t it = 0; it < t1 - t0; it++) { | |
3933 | if (!cl[best[iter][it]][it]) { | |
3934 | continue; | |
3935 | } | |
3936 | Double_t dx = x[it] - xmean; | |
3937 | Double_t ytr = mean[iter] + angle[iter] * dx; | |
3938 | sigma2 += (dy[best[iter][it]][it] - ytr) | |
3939 | * (dy[best[iter][it]][it] - ytr); | |
3940 | sigma1 += (dy[best[iter][it]][it] - moffset[iter]) | |
3941 | * (dy[best[iter][it]][it] - moffset[iter]); | |
7ad19338 | 3942 | sum++; |
4f1c04d3 | 3943 | } |
4551ea7c | 3944 | sigma2 /= (sum - 2); // Normalized residuals |
3945 | sigma1 /= (sum - 1); // Normalized residuals | |
3946 | smean[iter] = sigma2 * (sumx2 / det); // Estimated error2 of mean | |
3947 | sangle[iter] = sigma2 * ( sum / det); // Estimated error2 of angle | |
3948 | smeanangle[iter] = sigma2 * (-sumx / det); // Correlation | |
3949 | sigmas[iter] = TMath::Sqrt(sigma1); | |
3950 | smoffset[iter] = (sigma1 / sum) + 0.01*0.01; // Sigma of mean offset + unisochronity sigma | |
3951 | ||
6c94f330 | 3952 | // |
4551ea7c | 3953 | // Iterative choice of "better path" |
6c94f330 | 3954 | // |
4551ea7c | 3955 | for (Int_t it = 0; it < t1 - t0; it++) { |
3956 | ||
3957 | if (!cl[best[iter][it]][it]) { | |
3958 | continue; | |
3959 | } | |
3960 | ||
3961 | // Add unisochronity + angular effect contribution | |
3962 | Double_t sigmatr2 = smoffset[iter] + 0.5*tany*tany; | |
3963 | Double_t sweight = 1.0/sigmatr2 + 1.0/track->GetSigmaY2(); | |
3964 | Double_t weighty = (moffset[iter] / sigmatr2) / sweight; // Weighted mean | |
3965 | Double_t sigmacl = TMath::Sqrt(sigma1*sigma1 + track->GetSigmaY2()); | |
3966 | Double_t mindist = 100000.0; | |
3967 | Int_t ihbest = 0; | |
3968 | ||
3969 | for (Int_t ih = 0; ih < 10; ih++) { | |
3970 | if (!cl[ih][it]) { | |
3971 | break; | |
3972 | } | |
3973 | Double_t dist2 = (dy[ih][it] - weighty) / sigmacl; | |
3974 | dist2 *= dist2; // Chi2 distance | |
3975 | if (dist2 < mindist) { | |
7ad19338 | 3976 | mindist = dist2; |
4551ea7c | 3977 | ihbest = ih; |
7ad19338 | 3978 | } |
3979 | } | |
4551ea7c | 3980 | best[iter+1][it] = ihbest; |
4f1c04d3 | 3981 | } |
4551ea7c | 3982 | |
4f1c04d3 | 3983 | // |
4551ea7c | 3984 | // Update best hypothesy if better chi2 according tracklet position and angle |
7ad19338 | 3985 | // |
69b55c55 | 3986 | Double_t sy2 = smean[iter] + track->GetSigmaY2(); |
4551ea7c | 3987 | Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee; |
3988 | Double_t say = track->GetSigmaSnpY(); // track->fCey; | |
3989 | //Double_t chi20 = mean[bestiter]*mean[bestiter ] / sy2+angle[bestiter]*angle[bestiter]/sa2; | |
3990 | //Double_t chi21 = mean[iter]*mean[iter] / sy2+angle[iter]*angle[iter]/sa2; | |
6c94f330 | 3991 | |
4551ea7c | 3992 | Double_t detchi = sy2*sa2 - say*say; |
3993 | Double_t invers[3] = {sa2/detchi,sy2/detchi,-say/detchi}; // Inverse value of covariance matrix | |
4f1c04d3 | 3994 | |
4551ea7c | 3995 | Double_t chi20 = mean[bestiter] * mean[bestiter] * invers[0] |
3996 | + angle[bestiter] * angle[bestiter] * invers[1] | |
3997 | + 2.0 * mean[bestiter] * angle[bestiter] * invers[2]; | |
3998 | Double_t chi21 = mean[iter] * mean[iter] * invers[0] | |
3999 | + angle[iter] * angle[iter] * invers[1] | |
4000 | + 2.0 * mean[iter] * angle[iter] * invers[2]; | |
4001 | tchi2s[iter] = chi21; | |
4002 | ||
4003 | if ((changes[iter] <= changes[bestiter]) && | |
4004 | (chi21 < chi20)) { | |
4005 | bestiter = iter; | |
7ad19338 | 4006 | } |
4551ea7c | 4007 | |
7ad19338 | 4008 | } |
4551ea7c | 4009 | |
7ad19338 | 4010 | // |
4551ea7c | 4011 | // Set clusters |
7ad19338 | 4012 | // |
4551ea7c | 4013 | Double_t sigma2 = sigmas[0]; // Choose as sigma from 0 iteration |
4014 | Short_t maxpos = -1; | |
4015 | Float_t maxcharge = 0.0; | |
4016 | Short_t maxpos4 = -1; | |
4017 | Float_t maxcharge4 = 0.0; | |
4018 | Short_t maxpos5 = -1; | |
4019 | Float_t maxcharge5 = 0.0; | |
8979685e | 4020 | |
7ad19338 | 4021 | //if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.; |
4022 | //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept | |
4023 | ||
4e009ce4 | 4024 | Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0) |
4025 | ,-AliTracker::GetBz()*0.1); | |
4551ea7c | 4026 | Double_t expectederr = sigma2*sigma2 + 0.01*0.01; |
4027 | if (mpads > 3.5) { | |
4028 | expectederr += (mpads - 3.5) * 0.04; | |
4029 | } | |
4030 | if (changes[bestiter] > 1) { | |
4031 | expectederr += changes[bestiter] * 0.01; | |
4032 | } | |
4033 | expectederr += (0.03 * (tany-exB)*(tany-exB)) * 15.0; | |
4034 | //if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.; | |
7ad19338 | 4035 | //expectederr+=10000; |
4551ea7c | 4036 | |
4037 | for (Int_t it = 0; it < t1 - t0; it++) { | |
4038 | ||
4039 | if (!cl[best[bestiter][it]][it]) { | |
4040 | continue; | |
69b55c55 | 4041 | } |
4551ea7c | 4042 | |
4043 | cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // Set cluster error | |
4044 | if (!cl[best[bestiter][it]][it]->IsUsed()) { | |
4045 | cl[best[bestiter][it]][it]->SetY(cl[best[bestiter][it]][it]->GetY()); | |
4046 | //cl[best[bestiter][it]][it]->Use(); | |
4047 | } | |
4048 | ||
4049 | // Time bins with maximal charge | |
4050 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
69b55c55 | 4051 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4052 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4053 | } |
6c94f330 | 4054 | |
4551ea7c | 4055 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
4056 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
69b55c55 | 4057 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4058 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4059 | } |
4060 | } | |
4551ea7c | 4061 | |
4062 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
4063 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
69b55c55 | 4064 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4065 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
69b55c55 | 4066 | } |
7ad19338 | 4067 | } |
4551ea7c | 4068 | |
4069 | // Time bins with maximal charge | |
4070 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { | |
8979685e | 4071 | maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4072 | maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4073 | } |
6c94f330 | 4074 | |
4551ea7c | 4075 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { |
4076 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { | |
8979685e | 4077 | maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4078 | maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4079 | } |
4080 | } | |
4551ea7c | 4081 | |
4082 | if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { | |
4083 | if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { | |
8979685e | 4084 | maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); |
4551ea7c | 4085 | maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); |
8979685e | 4086 | } |
4087 | } | |
4551ea7c | 4088 | |
7ad19338 | 4089 | clusters[it+t0] = indexes[best[bestiter][it]][it]; |
4551ea7c | 4090 | |
4091 | // Still needed ???? | |
4092 | //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 && | |
4093 | //cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0] | |
4094 | // = indexes[best[bestiter][it]][it]; //Test | |
4095 | ||
7ad19338 | 4096 | } |
4551ea7c | 4097 | |
7ad19338 | 4098 | // |
4551ea7c | 4099 | // Set tracklet parameters |
6c94f330 | 4100 | // |
4551ea7c | 4101 | Double_t trackleterr2 = smoffset[bestiter] + 0.01*0.01; |
4102 | if (mpads > 3.5) { | |
4103 | trackleterr2 += (mpads - 3.5) * 0.04; | |
4104 | } | |
4105 | trackleterr2 += changes[bestiter] * 0.01; | |
4106 | trackleterr2 *= TMath::Max(14.0 - nfound,1.0); | |
4107 | trackleterr2 += 0.2 * (tany-exB)*(tany-exB); | |
4108 | ||
4109 | // Set tracklet parameters | |
4110 | tracklet.Set(xmean | |
4111 | ,track2.GetY() + moffset[bestiter] | |
4112 | ,meanz[bestiter] | |
4113 | ,track2.GetAlpha() | |
4114 | ,trackleterr2); | |
7ad19338 | 4115 | tracklet.SetTilt(h01); |
4116 | tracklet.SetP0(mean[bestiter]); | |
4117 | tracklet.SetP1(angle[bestiter]); | |
4118 | tracklet.SetN(nfound); | |
4119 | tracklet.SetNCross(changes[bestiter]); | |
4120 | tracklet.SetPlane(plane); | |
4121 | tracklet.SetSigma2(expectederr); | |
4122 | tracklet.SetChi2(tchi2s[bestiter]); | |
8979685e | 4123 | tracklet.SetMaxPos(maxpos,maxpos4,maxpos5); |
27eaf44b | 4124 | track->SetTracklets(plane,tracklet); |
4125 | track->SetNWrong(track->GetNWrong() + nbad[0]); | |
4551ea7c | 4126 | |
7ad19338 | 4127 | // |
4128 | // Debuging part | |
4129 | // | |
69b55c55 | 4130 | TClonesArray array0("AliTRDcluster"); |
4131 | TClonesArray array1("AliTRDcluster"); | |
4551ea7c | 4132 | array0.ExpandCreateFast(t1 - t0 + 1); |
4133 | array1.ExpandCreateFast(t1 - t0 + 1); | |
4134 | TTreeSRedirector &cstream = *fDebugStreamer; | |
7ad19338 | 4135 | AliTRDcluster dummy; |
4136 | Double_t dy0[100]; | |
8979685e | 4137 | Double_t dyb[100]; |
4138 | ||
4551ea7c | 4139 | for (Int_t it = 0; it < t1 - t0; it++) { |
7ad19338 | 4140 | dy0[it] = dy[0][it]; |
4141 | dyb[it] = dy[best[bestiter][it]][it]; | |
4551ea7c | 4142 | if (cl[0][it]) { |
7ad19338 | 4143 | new(array0[it]) AliTRDcluster(*cl[0][it]); |
4144 | } | |
4551ea7c | 4145 | else { |
7ad19338 | 4146 | new(array0[it]) AliTRDcluster(dummy); |
4147 | } | |
4148 | if(cl[best[bestiter][it]][it]) { | |
4149 | new(array1[it]) AliTRDcluster(*cl[best[bestiter][it]][it]); | |
4150 | } | |
4151 | else{ | |
4152 | new(array1[it]) AliTRDcluster(dummy); | |
4153 | } | |
4f1c04d3 | 4154 | } |
7ad19338 | 4155 | TGraph graph0(t1-t0,x,dy0); |
4156 | TGraph graph1(t1-t0,x,dyb); | |
4157 | TGraph graphy(t1-t0,x,yt); | |
4158 | TGraph graphz(t1-t0,x,zt); | |
4551ea7c | 4159 | |
4160 | if (AliTRDReconstructor::StreamLevel() > 0) { | |
4161 | cstream << "tracklet" | |
4162 | << "track.=" << track // Track parameters | |
4163 | << "tany=" << tany // Tangent of the local track angle | |
4164 | << "xmean=" << xmean // Xmean - reference x of tracklet | |
4165 | << "tilt=" << h01 // Tilt angle | |
4166 | << "nall=" << nall // Number of foundable clusters | |
4167 | << "nfound=" << nfound // Number of found clusters | |
4168 | << "clfound=" << clfound // Total number of found clusters in road | |
4169 | << "mpads=" << mpads // Mean number of pads per cluster | |
4170 | << "plane=" << plane // Plane number | |
4171 | << "detector=" << detector // Detector number | |
4172 | << "road=" << road // The width of the used road | |
4173 | << "graph0.=" << &graph0 // x - y = dy for closest cluster | |
4174 | << "graph1.=" << &graph1 // x - y = dy for second closest cluster | |
4175 | << "graphy.=" << &graphy // y position of the track | |
4176 | << "graphz.=" << &graphz // z position of the track | |
4177 | //<< "fCl.=" << &array0 // closest cluster | |
4178 | //<< "fCl2.=" << &array1 // second closest cluster | |
4179 | << "maxpos=" << maxpos // Maximal charge postion | |
4180 | << "maxcharge=" << maxcharge // Maximal charge | |
4181 | << "maxpos4=" << maxpos4 // Maximal charge postion - after bin 4 | |
4182 | << "maxcharge4=" << maxcharge4 // Maximal charge - after bin 4 | |
4183 | << "maxpos5=" << maxpos5 // Maximal charge postion - after bin 5 | |
4184 | << "maxcharge5=" << maxcharge5 // Maximal charge - after bin 5 | |
4185 | << "bestiter=" << bestiter // Best iteration number | |
4186 | << "tracklet.=" << &tracklet // Corrspond to the best iteration | |
4187 | << "tchi20=" << tchi2s[0] // Chi2 of cluster in the 0 iteration | |
4188 | << "tchi2b=" << tchi2s[bestiter] // Chi2 of cluster in the best iteration | |
4189 | << "sigmas0=" << sigmas[0] // Residuals sigma | |
4190 | << "sigmasb=" << sigmas[bestiter] // Residulas sigma | |
4191 | << "ngood0=" << ngood[0] // Number of good clusters in 0 iteration | |
4192 | << "nbad0=" << nbad[0] // Number of bad clusters in 0 iteration | |
4193 | << "ngoodb=" << ngood[bestiter] // in best iteration | |
4194 | << "nbadb=" << nbad[bestiter] // in best iteration | |
4195 | << "changes0=" << changes[0] // Changes of pardrows in iteration number 0 | |
4196 | << "changesb=" << changes[bestiter] // Changes of pardrows in best iteration | |
4197 | << "moffset0=" << moffset[0] // Offset fixing angle in iter=0 | |
4198 | << "smoffset0=" << smoffset[0] // Sigma of offset fixing angle in iter=0 | |
4199 | << "moffsetb=" << moffset[bestiter] // Offset fixing angle in iter=best | |
4200 | << "smoffsetb=" << smoffset[bestiter] // Sigma of offset fixing angle in iter=best | |
4201 | << "mean0=" << mean[0] // Mean dy in iter=0; | |
4202 | << "smean0=" << smean[0] // Sigma of mean dy in iter=0 | |
4203 | << "meanb=" << mean[bestiter] // Mean dy in iter=best | |
4204 | << "smeanb=" << smean[bestiter] // Sigma of mean dy in iter=best | |
4205 | << "angle0=" << angle[0] // Angle deviation in the iteration number 0 | |
4206 | << "sangle0=" << sangle[0] // Sigma of angular deviation in iteration number 0 | |
4207 | << "angleb=" << angle[bestiter] // Angle deviation in the best iteration | |
4208 | << "sangleb=" << sangle[bestiter] // Sigma of angle deviation in the best iteration | |
4209 | << "expectederr=" << expectederr // Expected error of cluster position | |
4210 | << "\n"; | |
4211 | } | |
4212 | ||
4f1c04d3 | 4213 | return nfound; |
4f1c04d3 | 4214 | |
75bd7f81 | 4215 | } |
4f1c04d3 | 4216 | |
75bd7f81 | 4217 | //_____________________________________________________________________________ |
4218 | Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist | |
4219 | , Int_t *outlist, Bool_t down) | |
69b55c55 | 4220 | { |
4221 | // | |
4551ea7c | 4222 | // Sort eleements according occurancy |
4223 | // The size of output array has is 2*n | |
69b55c55 | 4224 | // |
75bd7f81 | 4225 | |
4551ea7c | 4226 | Int_t *sindexS = new Int_t[n]; // Temporary array for sorting |
4227 | Int_t *sindexF = new Int_t[2*n]; | |
4228 | for (Int_t i = 0; i < n; i++) { | |
4229 | sindexF[i] = 0; | |
4230 | } | |
4231 | ||
4232 | TMath::Sort(n,inlist,sindexS,down); | |
4233 | ||
4234 | Int_t last = inlist[sindexS[0]]; | |
4235 | Int_t val = last; | |
4236 | sindexF[0] = 1; | |
4237 | sindexF[0+n] = last; | |
4238 | Int_t countPos = 0; | |
4239 | ||
4240 | // Find frequency | |
4241 | for (Int_t i = 1; i < n; i++) { | |
69b55c55 | 4242 | val = inlist[sindexS[i]]; |
4551ea7c | 4243 | if (last == val) { |
4244 | sindexF[countPos]++; | |
4245 | } | |
4246 | else { | |
69b55c55 | 4247 | countPos++; |
4248 | sindexF[countPos+n] = val; | |
4249 | sindexF[countPos]++; | |
4551ea7c | 4250 | last = val; |
69b55c55 | 4251 | } |
4252 | } | |
4551ea7c | 4253 | if (last == val) { |
4254 | countPos++; | |
4255 | } | |
4256 | ||
4257 | // Sort according frequency | |
4258 | TMath::Sort(countPos,sindexF,sindexS,kTRUE); | |
4259 | ||
4260 | for (Int_t i = 0; i < countPos; i++) { | |
69b55c55 | 4261 | outlist[2*i ] = sindexF[sindexS[i]+n]; |
4262 | outlist[2*i+1] = sindexF[sindexS[i]]; | |
4263 | } | |
4551ea7c | 4264 | |
69b55c55 | 4265 | delete [] sindexS; |
4266 | delete [] sindexF; | |
4267 | ||
4268 | return countPos; | |
75bd7f81 | 4269 | |
69b55c55 | 4270 | } |
4271 | ||
75bd7f81 | 4272 | //_____________________________________________________________________________ |
4551ea7c | 4273 | AliTRDtrack *AliTRDtracker::RegisterSeed(AliTRDseed *seeds, Double_t *params) |
69b55c55 | 4274 | { |
4275 | // | |
75bd7f81 | 4276 | // Register a seed |
69b55c55 | 4277 | // |
4551ea7c | 4278 | |
4279 | Double_t alpha = AliTRDgeometry::GetAlpha(); | |
4280 | Double_t shift = AliTRDgeometry::GetAlpha()/2.0; | |
69b55c55 | 4281 | Double_t c[15]; |
4551ea7c | 4282 | |
4283 | c[ 0] = 0.2; | |
4284 | c[ 1] = 0.0; c[ 2] = 2.0; | |
4285 | c[ 3] = 0.0; c[ 4] = 0.0; c[ 5] = 0.02; | |
4286 | c[ 6] = 0.0; c[ 7] = 0.0; c[ 8] = 0.0; c[ 9] = 0.1; | |
4287 | c[10] = 0.0; c[11] = 0.0; c[12] = 0.0; c[13] = 0.0; c[14] = params[5]*params[5]*0.01; | |
4288 | ||
4289 | Int_t index = 0; | |
4290 | AliTRDcluster *cl = 0; | |
4291 | ||
4292 | for (Int_t ilayer = 0; ilayer < 6; ilayer++) { | |
4293 | if (seeds[ilayer].IsOK()) { | |
4294 | for (Int_t itime = 22; itime > 0; itime--) { | |
ca1e1e5b | 4295 | if (seeds[ilayer].GetIndexes(itime) > 0) { |
4296 | index = seeds[ilayer].GetIndexes(itime); | |
4297 | cl = seeds[ilayer].GetClusters(itime); | |
69b55c55 | 4298 | break; |
4299 | } | |
4300 | } | |
4301 | } | |
4551ea7c | 4302 | if (index > 0) { |
4303 | break; | |
4304 | } | |
69b55c55 | 4305 | } |
4551ea7c | 4306 | if (cl == 0) { |
4307 | return 0; | |
4308 | } | |
4309 | ||
4310 | AliTRDtrack *track = new AliTRDtrack(cl | |
4311 | ,index | |
4312 | ,¶ms[1] | |
4313 | ,c | |
4314 | ,params[0] | |
4315 | ,params[6]*alpha+shift); | |
4316 | track->PropagateTo(params[0]-5.0); | |
69b55c55 | 4317 | track->ResetCovariance(1); |
4551ea7c | 4318 | |
4319 | Int_t rc = FollowBackProlongation(*track); | |
4320 | if (rc < 30) { | |
69b55c55 | 4321 | delete track; |
4551ea7c | 4322 | track = 0; |
4323 | } | |
4324 | else { | |
69b55c55 | 4325 | track->CookdEdx(); |
4326 | CookdEdxTimBin(*track); | |
4551ea7c | 4327 | CookLabel(track,0.9); |
69b55c55 | 4328 | } |
69b55c55 | 4329 | |
75bd7f81 | 4330 | return track; |
7e448bcc | 4331 | } |
4332 | ||
4333 | ////////////////////////////////////////////////////////////////////////////////////////// | |
69b55c55 | 4334 | |
7e448bcc | 4335 | void AliTRDtracker::InitLogHists() { |
4336 | ||
4337 | fHBackfit = new TH1D("logTRD_backfit", "", 40, -0.5, 39.5); | |
4338 | fHRefit = new TH1D("logTRD_refit", "", 40, -0.5, 39.5); | |
4339 | fHClSearch = new TH1D("logTRD_clSearch", "", 60, -0.5, 59.5); | |
4340 | ||
4341 | fHX = new TH1D("logTRD_X", ";x (cm)", 200, 50, 400); | |
4342 | fHNCl = new TH1D("logTRD_ncl", "", 40, -0.5, 39.5); | |
4343 | fHNClTrack = new TH1D("logTRD_nclTrack", "", 180, -0.5, 179.5); | |
4344 | ||
4345 | fHMinYPos = new TH1D("logTRD_minYPos", ";#delta Y (cm)", 400, -6, 6); | |
4346 | fHMinYNeg = new TH1D("logTRD_minYNeg", ";#delta Y (cm)", 400, -6, 6); | |
4347 | fHMinZ = new TH1D("logTRD_minZ", ";#delta Z (cm)", 400, -20, 20); | |
4348 | fHMinD = new TH2D("logTRD_minD", ";#delta Y (cm);#delta Z (cm)", 100, -6, 6, 100, -50, 50); | |
4349 | ||
4350 | fHDeltaX = new TH1D("logTRD_deltaX", ";#delta X (cm)", 100, -5, 5); | |
4351 | fHXCl = new TH1D("logTRD_xCl", ";cluster x position (cm)", 1000, 280, 380); | |
4352 | ||
4353 | const char *nameFindCl[4] = {"logTRD_clY", "logTRD_clZ", "logTRD_clB", "logTRD_clG"}; | |
4354 | ||
4355 | for(int i=0; i<4; i++) { | |
4356 | fHFindCl[i] = new TH1D(nameFindCl[i], "", 30, -0.5, 29.5); | |
4357 | } | |
69b55c55 | 4358 | } |
7e448bcc | 4359 | |
4360 | ////////////////////////////////////////////////////////////////////////////////////////// | |
4361 | ||
4362 | void AliTRDtracker::SaveLogHists() { | |
4363 | ||
4364 | TDirectory *sav = gDirectory; | |
4365 | TFile *logFile = 0; | |
4366 | ||
4367 | TSeqCollection *col = gROOT->GetListOfFiles(); | |
4368 | int N = col->GetEntries(); | |
4369 | for(int i=0; i<N; i++) { | |
4370 | logFile = (TFile*)col->At(i); | |
4371 | if (strstr(logFile->GetName(), "AliESDs.root")) break; | |
4372 | } | |
4373 | ||
4374 | logFile->cd(); | |
4375 | fHBackfit->Write(fHBackfit->GetName(), TObject::kOverwrite); | |
4376 | fHRefit->Write(fHRefit->GetName(), TObject::kOverwrite); | |
4377 | fHClSearch->Write(fHClSearch->GetName(), TObject::kOverwrite); | |
4378 | fHX->Write(fHX->GetName(), TObject::kOverwrite); | |
4379 | fHNCl->Write(fHNCl->GetName(), TObject::kOverwrite); | |
4380 | fHNClTrack->Write(fHNClTrack->GetName(), TObject::kOverwrite); | |
4381 | ||
4382 | fHMinYPos->Write(fHMinYPos->GetName(), TObject::kOverwrite); | |
4383 | fHMinYNeg->Write(fHMinYNeg->GetName(), TObject::kOverwrite); | |
4384 | fHMinD->Write(fHMinD->GetName(), TObject::kOverwrite); | |
4385 | fHMinZ->Write(fHMinZ->GetName(), TObject::kOverwrite); | |
4386 | ||
4387 | fHDeltaX->Write(fHDeltaX->GetName(), TObject::kOverwrite); | |
4388 | fHXCl->Write(fHXCl->GetName(), TObject::kOverwrite); | |
4389 | ||
4390 | ||
4391 | for(int i=0; i<4; i++) | |
4392 | fHFindCl[i]->Write(fHFindCl[i]->GetName(), TObject::kOverwrite); | |
4393 | ||
4394 | logFile->Flush(); | |
4395 | ||
4396 | sav->cd(); | |
4397 | } | |
4398 | ||
4399 | ////////////////////////////////////////////////////////////////////////////////////////// |