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e4f2f73d | 1 | /************************************************************************** |
29b87567 | 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 | **************************************************************************/ | |
e4f2f73d | 15 | |
16 | /* $Id$ */ | |
17 | ||
18 | //////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // The TRD track seed // | |
21 | // // | |
22 | // Authors: // | |
23 | // Alex Bercuci <A.Bercuci@gsi.de> // | |
24 | // Markus Fasel <M.Fasel@gsi.de> // | |
25 | // // | |
26 | //////////////////////////////////////////////////////////////////////////// | |
27 | ||
28 | #include "TMath.h" | |
29 | #include "TLinearFitter.h" | |
eb38ed55 | 30 | #include "TClonesArray.h" // tmp |
31 | #include <TTreeStream.h> | |
e4f2f73d | 32 | |
33 | #include "AliLog.h" | |
34 | #include "AliMathBase.h" | |
35 | ||
03cef9b2 | 36 | #include "AliTRDpadPlane.h" |
e4f2f73d | 37 | #include "AliTRDcluster.h" |
f3d3af1b | 38 | #include "AliTRDseedV1.h" |
39 | #include "AliTRDtrackV1.h" | |
e4f2f73d | 40 | #include "AliTRDcalibDB.h" |
eb38ed55 | 41 | #include "AliTRDchamberTimeBin.h" |
42 | #include "AliTRDtrackingChamber.h" | |
43 | #include "AliTRDtrackerV1.h" | |
44 | #include "AliTRDReconstructor.h" | |
e4f2f73d | 45 | #include "AliTRDrecoParam.h" |
0906e73e | 46 | #include "Cal/AliTRDCalPID.h" |
e4f2f73d | 47 | |
e4f2f73d | 48 | ClassImp(AliTRDseedV1) |
49 | ||
50 | //____________________________________________________________________ | |
ae4e8b84 | 51 | AliTRDseedV1::AliTRDseedV1(Int_t det) |
e4f2f73d | 52 | :AliTRDseed() |
3a039a31 | 53 | ,fReconstructor(0x0) |
ae4e8b84 | 54 | ,fClusterIter(0x0) |
55 | ,fClusterIdx(0) | |
56 | ,fDet(det) | |
0906e73e | 57 | ,fMom(0.) |
bcb6fb78 | 58 | ,fSnp(0.) |
59 | ,fTgl(0.) | |
60 | ,fdX(0.) | |
6e4d4425 | 61 | ,fXref(0.) |
e4f2f73d | 62 | { |
63 | // | |
64 | // Constructor | |
65 | // | |
29b87567 | 66 | //printf("AliTRDseedV1::AliTRDseedV1()\n"); |
e44586fb | 67 | |
29b87567 | 68 | for(int islice=0; islice < knSlices; islice++) fdEdx[islice] = 0.; |
69 | for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) fProb[ispec] = -1.; | |
6e4d4425 | 70 | fRefCov[0] = 1.; fRefCov[1] = 0.; fRefCov[2] = 1.; |
e4f2f73d | 71 | } |
72 | ||
73 | //____________________________________________________________________ | |
0906e73e | 74 | AliTRDseedV1::AliTRDseedV1(const AliTRDseedV1 &ref) |
e4f2f73d | 75 | :AliTRDseed((AliTRDseed&)ref) |
43d6ad34 | 76 | ,fReconstructor(ref.fReconstructor) |
ae4e8b84 | 77 | ,fClusterIter(0x0) |
78 | ,fClusterIdx(0) | |
79 | ,fDet(ref.fDet) | |
0906e73e | 80 | ,fMom(ref.fMom) |
bcb6fb78 | 81 | ,fSnp(ref.fSnp) |
82 | ,fTgl(ref.fTgl) | |
83 | ,fdX(ref.fdX) | |
6e4d4425 | 84 | ,fXref(ref.fXref) |
e4f2f73d | 85 | { |
86 | // | |
87 | // Copy Constructor performing a deep copy | |
88 | // | |
89 | ||
29b87567 | 90 | //printf("AliTRDseedV1::AliTRDseedV1(const AliTRDseedV1 &)\n"); |
91 | SetBit(kOwner, kFALSE); | |
92 | for(int islice=0; islice < knSlices; islice++) fdEdx[islice] = ref.fdEdx[islice]; | |
93 | for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) fProb[ispec] = ref.fProb[ispec]; | |
6e4d4425 | 94 | memcpy(fRefCov, ref.fRefCov, 3*sizeof(Double_t)); |
fbb2ea06 | 95 | } |
d9950a5a | 96 | |
0906e73e | 97 | |
e4f2f73d | 98 | //____________________________________________________________________ |
99 | AliTRDseedV1& AliTRDseedV1::operator=(const AliTRDseedV1 &ref) | |
100 | { | |
101 | // | |
102 | // Assignment Operator using the copy function | |
103 | // | |
104 | ||
29b87567 | 105 | if(this != &ref){ |
106 | ref.Copy(*this); | |
107 | } | |
221ab7e0 | 108 | SetBit(kOwner, kFALSE); |
109 | ||
29b87567 | 110 | return *this; |
e4f2f73d | 111 | |
112 | } | |
113 | ||
114 | //____________________________________________________________________ | |
115 | AliTRDseedV1::~AliTRDseedV1() | |
116 | { | |
117 | // | |
118 | // Destructor. The RecoParam object belongs to the underlying tracker. | |
119 | // | |
120 | ||
29b87567 | 121 | //printf("I-AliTRDseedV1::~AliTRDseedV1() : Owner[%s]\n", IsOwner()?"YES":"NO"); |
e4f2f73d | 122 | |
29b87567 | 123 | if(IsOwner()) |
124 | for(int itb=0; itb<knTimebins; itb++){ | |
125 | if(!fClusters[itb]) continue; | |
126 | //AliInfo(Form("deleting c %p @ %d", fClusters[itb], itb)); | |
127 | delete fClusters[itb]; | |
128 | fClusters[itb] = 0x0; | |
129 | } | |
e4f2f73d | 130 | } |
131 | ||
132 | //____________________________________________________________________ | |
133 | void AliTRDseedV1::Copy(TObject &ref) const | |
134 | { | |
135 | // | |
136 | // Copy function | |
137 | // | |
138 | ||
29b87567 | 139 | //AliInfo(""); |
140 | AliTRDseedV1 &target = (AliTRDseedV1 &)ref; | |
141 | ||
ae4e8b84 | 142 | target.fClusterIter = 0x0; |
143 | target.fClusterIdx = 0; | |
144 | target.fDet = fDet; | |
29b87567 | 145 | target.fMom = fMom; |
146 | target.fSnp = fSnp; | |
147 | target.fTgl = fTgl; | |
148 | target.fdX = fdX; | |
6e4d4425 | 149 | target.fXref = fXref; |
29b87567 | 150 | target.fReconstructor = fReconstructor; |
151 | ||
152 | for(int islice=0; islice < knSlices; islice++) target.fdEdx[islice] = fdEdx[islice]; | |
153 | for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) target.fProb[ispec] = fProb[ispec]; | |
6e4d4425 | 154 | memcpy(target.fRefCov, fRefCov, 3*sizeof(Double_t)); |
29b87567 | 155 | |
156 | AliTRDseed::Copy(target); | |
e4f2f73d | 157 | } |
158 | ||
0906e73e | 159 | |
160 | //____________________________________________________________ | |
f3d3af1b | 161 | Bool_t AliTRDseedV1::Init(AliTRDtrackV1 *track) |
0906e73e | 162 | { |
163 | // Initialize this tracklet using the track information | |
164 | // | |
165 | // Parameters: | |
166 | // track - the TRD track used to initialize the tracklet | |
167 | // | |
168 | // Detailed description | |
169 | // The function sets the starting point and direction of the | |
170 | // tracklet according to the information from the TRD track. | |
171 | // | |
172 | // Caution | |
173 | // The TRD track has to be propagated to the beginning of the | |
174 | // chamber where the tracklet will be constructed | |
175 | // | |
176 | ||
29b87567 | 177 | Double_t y, z; |
178 | if(!track->GetProlongation(fX0, y, z)) return kFALSE; | |
179 | fYref[0] = y; | |
180 | fYref[1] = track->GetSnp()/(1. - track->GetSnp()*track->GetSnp()); | |
181 | fZref[0] = z; | |
182 | fZref[1] = track->GetTgl(); | |
6e4d4425 | 183 | |
184 | const Double_t *cov = track->GetCovariance(); | |
185 | fRefCov[0] = cov[0]; // Var(y) | |
186 | fRefCov[1] = cov[1]; // Cov(yz) | |
187 | fRefCov[2] = cov[5]; // Var(z) | |
0906e73e | 188 | |
29b87567 | 189 | //printf("Tracklet ref x[%7.3f] y[%7.3f] z[%7.3f], snp[%f] tgl[%f]\n", fX0, fYref[0], fZref[0], track->GetSnp(), track->GetTgl()); |
190 | return kTRUE; | |
0906e73e | 191 | } |
192 | ||
bcb6fb78 | 193 | |
194 | //____________________________________________________________________ | |
195 | void AliTRDseedV1::CookdEdx(Int_t nslices) | |
196 | { | |
197 | // Calculates average dE/dx for all slices and store them in the internal array fdEdx. | |
198 | // | |
199 | // Parameters: | |
200 | // nslices : number of slices for which dE/dx should be calculated | |
201 | // Output: | |
202 | // store results in the internal array fdEdx. This can be accessed with the method | |
203 | // AliTRDseedV1::GetdEdx() | |
204 | // | |
205 | // Detailed description | |
206 | // Calculates average dE/dx for all slices. Depending on the PID methode | |
207 | // the number of slices can be 3 (LQ) or 8(NN). | |
208 | // The calculation of dQ/dl are done using the tracklet fit results (see AliTRDseedV1::GetdQdl(Int_t)) i.e. | |
209 | // | |
210 | // dQ/dl = qc/(dx * sqrt(1 + dy/dx^2 + dz/dx^2)) | |
211 | // | |
212 | // The following effects are included in the calculation: | |
213 | // 1. calibration values for t0 and vdrift (using x coordinate to calculate slice) | |
214 | // 2. cluster sharing (optional see AliTRDrecoParam::SetClusterSharing()) | |
215 | // 3. cluster size | |
216 | // | |
217 | ||
29b87567 | 218 | Int_t nclusters[knSlices]; |
219 | for(int i=0; i<knSlices; i++){ | |
220 | fdEdx[i] = 0.; | |
221 | nclusters[i] = 0; | |
222 | } | |
223 | Float_t clength = (/*.5 * */AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick()); | |
224 | ||
225 | AliTRDcluster *cluster = 0x0; | |
226 | for(int ic=0; ic<AliTRDtrackerV1::GetNTimeBins(); ic++){ | |
227 | if(!(cluster = fClusters[ic])) continue; | |
228 | Float_t x = cluster->GetX(); | |
229 | ||
230 | // Filter clusters for dE/dx calculation | |
231 | ||
232 | // 1.consider calibration effects for slice determination | |
233 | Int_t slice; | |
234 | if(cluster->IsInChamber()) slice = Int_t(TMath::Abs(fX0 - x) * nslices / clength); | |
235 | else slice = x < fX0 ? 0 : nslices-1; | |
236 | ||
237 | // 2. take sharing into account | |
238 | Float_t w = cluster->IsShared() ? .5 : 1.; | |
239 | ||
240 | // 3. take into account large clusters TODO | |
241 | //w *= c->GetNPads() > 3 ? .8 : 1.; | |
242 | ||
243 | //CHECK !!! | |
244 | fdEdx[slice] += w * GetdQdl(ic); //fdQdl[ic]; | |
245 | nclusters[slice]++; | |
246 | } // End of loop over clusters | |
247 | ||
cd40b287 | 248 | //if(fReconstructor->GetPIDMethod() == AliTRDReconstructor::kLQPID){ |
249 | if(nslices == AliTRDReconstructor::kLQslices){ | |
29b87567 | 250 | // calculate mean charge per slice (only LQ PID) |
251 | for(int is=0; is<nslices; is++){ | |
252 | if(nclusters[is]) fdEdx[is] /= nclusters[is]; | |
253 | } | |
254 | } | |
bcb6fb78 | 255 | } |
256 | ||
b83573da | 257 | |
bcb6fb78 | 258 | //____________________________________________________________________ |
259 | Float_t AliTRDseedV1::GetdQdl(Int_t ic) const | |
260 | { | |
29b87567 | 261 | return fClusters[ic] ? TMath::Abs(fClusters[ic]->GetQ()) /fdX / TMath::Sqrt(1. + fYfit[1]*fYfit[1] + fZref[1]*fZref[1]) : 0.; |
bcb6fb78 | 262 | } |
263 | ||
0906e73e | 264 | //____________________________________________________________________ |
265 | Double_t* AliTRDseedV1::GetProbability() | |
266 | { | |
267 | // Fill probability array for tracklet from the DB. | |
268 | // | |
269 | // Parameters | |
270 | // | |
271 | // Output | |
272 | // returns pointer to the probability array and 0x0 if missing DB access | |
273 | // | |
274 | // Detailed description | |
275 | ||
29b87567 | 276 | |
277 | // retrive calibration db | |
0906e73e | 278 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); |
279 | if (!calibration) { | |
280 | AliError("No access to calibration data"); | |
281 | return 0x0; | |
282 | } | |
283 | ||
3a039a31 | 284 | if (!fReconstructor) { |
285 | AliError("Reconstructor not set."); | |
4ba1d6ae | 286 | return 0x0; |
287 | } | |
288 | ||
0906e73e | 289 | // Retrieve the CDB container class with the parametric detector response |
3a039a31 | 290 | const AliTRDCalPID *pd = calibration->GetPIDObject(fReconstructor->GetPIDMethod()); |
0906e73e | 291 | if (!pd) { |
292 | AliError("No access to AliTRDCalPID object"); | |
293 | return 0x0; | |
294 | } | |
29b87567 | 295 | //AliInfo(Form("Method[%d] : %s", fReconstructor->GetRecoParam() ->GetPIDMethod(), pd->IsA()->GetName())); |
10f75631 | 296 | |
29b87567 | 297 | // calculate tracklet length TO DO |
0906e73e | 298 | Float_t length = (AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick()); |
299 | /// TMath::Sqrt((1.0 - fSnp[iPlane]*fSnp[iPlane]) / (1.0 + fTgl[iPlane]*fTgl[iPlane])); | |
300 | ||
301 | //calculate dE/dx | |
3a039a31 | 302 | CookdEdx(fReconstructor->GetNdEdxSlices()); |
0906e73e | 303 | |
304 | // Sets the a priori probabilities | |
305 | for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) { | |
ae4e8b84 | 306 | fProb[ispec] = pd->GetProbability(ispec, fMom, &fdEdx[0], length, GetPlane()); |
0906e73e | 307 | } |
308 | ||
29b87567 | 309 | return &fProb[0]; |
0906e73e | 310 | } |
311 | ||
e4f2f73d | 312 | //____________________________________________________________________ |
313 | Float_t AliTRDseedV1::GetQuality(Bool_t kZcorr) const | |
314 | { | |
315 | // | |
316 | // Returns a quality measurement of the current seed | |
317 | // | |
318 | ||
29b87567 | 319 | Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.; |
320 | return | |
321 | .5 * TMath::Abs(18.0 - fN2) | |
322 | + 10.* TMath::Abs(fYfit[1] - fYref[1]) | |
323 | + 5. * TMath::Abs(fYfit[0] - fYref[0] + zcorr) | |
324 | + 2. * TMath::Abs(fMeanz - fZref[0]) / fPadLength; | |
e4f2f73d | 325 | } |
326 | ||
0906e73e | 327 | //____________________________________________________________________ |
328 | void AliTRDseedV1::GetCovAt(Double_t /*x*/, Double_t *cov) const | |
329 | { | |
330 | // Computes covariance in the y-z plane at radial point x | |
331 | ||
29b87567 | 332 | Int_t ic = 0; while (!fClusters[ic]) ic++; |
eb38ed55 | 333 | AliTRDcalibDB *fCalib = AliTRDcalibDB::Instance(); |
29b87567 | 334 | Double_t exB = fCalib->GetOmegaTau(fCalib->GetVdriftAverage(fClusters[ic]->GetDetector()), -AliTracker::GetBz()*0.1); |
eb38ed55 | 335 | |
29b87567 | 336 | Double_t sy2 = fSigmaY2*fSigmaY2 + .2*(fYfit[1]-exB)*(fYfit[1]-exB); |
337 | Double_t sz2 = fPadLength/12.; | |
0906e73e | 338 | |
eb38ed55 | 339 | |
29b87567 | 340 | //printf("Yfit[1] %f sy20 %f SigmaY2 %f\n", fYfit[1], sy20, fSigmaY2); |
0906e73e | 341 | |
29b87567 | 342 | cov[0] = sy2; |
343 | cov[1] = fTilt*(sy2-sz2); | |
344 | cov[2] = sz2; | |
3a039a31 | 345 | |
346 | // insert systematic uncertainties calibration and misalignment | |
347 | Double_t sys[15]; | |
348 | fReconstructor->GetRecoParam()->GetSysCovMatrix(sys); | |
349 | cov[0] += (sys[0]*sys[0]); | |
350 | cov[2] += (sys[1]*sys[1]); | |
0906e73e | 351 | } |
352 | ||
0906e73e | 353 | |
354 | //____________________________________________________________________ | |
29b87567 | 355 | void AliTRDseedV1::SetOwner() |
0906e73e | 356 | { |
29b87567 | 357 | //AliInfo(Form("own [%s] fOwner[%s]", own?"YES":"NO", fOwner?"YES":"NO")); |
358 | ||
359 | if(TestBit(kOwner)) return; | |
360 | for(int ic=0; ic<knTimebins; ic++){ | |
361 | if(!fClusters[ic]) continue; | |
362 | fClusters[ic] = new AliTRDcluster(*fClusters[ic]); | |
363 | } | |
364 | SetBit(kOwner); | |
0906e73e | 365 | } |
366 | ||
e4f2f73d | 367 | //____________________________________________________________________ |
eb38ed55 | 368 | Bool_t AliTRDseedV1::AttachClustersIter(AliTRDtrackingChamber *chamber, Float_t quality, Bool_t kZcorr, AliTRDcluster *c) |
e4f2f73d | 369 | { |
370 | // | |
371 | // Iterative process to register clusters to the seed. | |
372 | // In iteration 0 we try only one pad-row and if quality not | |
373 | // sufficient we try 2 pad-rows (about 5% of tracks cross 2 pad-rows) | |
374 | // | |
29b87567 | 375 | // debug level 7 |
376 | // | |
377 | ||
378 | if(!fReconstructor->GetRecoParam() ){ | |
379 | AliError("Seed can not be used without a valid RecoParam."); | |
380 | return kFALSE; | |
381 | } | |
382 | ||
383 | AliTRDchamberTimeBin *layer = 0x0; | |
a8276d32 | 384 | if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker)>=7){ |
e8037fda | 385 | AliTRDtrackingChamber ch(*chamber); |
386 | ch.SetOwner(); | |
29f95561 | 387 | TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker); |
388 | cstreamer << "AttachClustersIter" | |
e8037fda | 389 | << "chamber.=" << &ch |
29b87567 | 390 | << "tracklet.=" << this |
29b87567 | 391 | << "\n"; |
392 | } | |
393 | ||
35c24814 | 394 | Float_t tquality; |
29b87567 | 395 | Double_t kroady = fReconstructor->GetRecoParam() ->GetRoad1y(); |
396 | Double_t kroadz = fPadLength * .5 + 1.; | |
35c24814 | 397 | |
398 | // initialize configuration parameters | |
399 | Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.; | |
400 | Int_t niter = kZcorr ? 1 : 2; | |
401 | ||
29b87567 | 402 | Double_t yexp, zexp; |
403 | Int_t ncl = 0; | |
35c24814 | 404 | // start seed update |
405 | for (Int_t iter = 0; iter < niter; iter++) { | |
29b87567 | 406 | ncl = 0; |
407 | for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) { | |
408 | if(!(layer = chamber->GetTB(iTime))) continue; | |
409 | if(!Int_t(*layer)) continue; | |
410 | ||
411 | // define searching configuration | |
412 | Double_t dxlayer = layer->GetX() - fX0; | |
413 | if(c){ | |
414 | zexp = c->GetZ(); | |
415 | //Try 2 pad-rows in second iteration | |
416 | if (iter > 0) { | |
417 | zexp = fZref[0] + fZref[1] * dxlayer - zcorr; | |
418 | if (zexp > c->GetZ()) zexp = c->GetZ() + fPadLength*0.5; | |
419 | if (zexp < c->GetZ()) zexp = c->GetZ() - fPadLength*0.5; | |
420 | } | |
421 | } else zexp = fZref[0] + (kZcorr ? fZref[1] * dxlayer : 0.); | |
35c24814 | 422 | yexp = fYref[0] + fYref[1] * dxlayer - zcorr; |
29b87567 | 423 | |
424 | // Get and register cluster | |
425 | Int_t index = layer->SearchNearestCluster(yexp, zexp, kroady, kroadz); | |
426 | if (index < 0) continue; | |
427 | AliTRDcluster *cl = (*layer)[index]; | |
35c24814 | 428 | |
29b87567 | 429 | fIndexes[iTime] = layer->GetGlobalIndex(index); |
430 | fClusters[iTime] = cl; | |
431 | fY[iTime] = cl->GetY(); | |
432 | fZ[iTime] = cl->GetZ(); | |
433 | ncl++; | |
434 | } | |
35c24814 | 435 | if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker)>=7) AliInfo(Form("iter = %d ncl [%d] = %d", iter, fDet, ncl)); |
29b87567 | 436 | |
437 | if(ncl>1){ | |
438 | // calculate length of the time bin (calibration aware) | |
439 | Int_t irp = 0; Float_t x[2]; Int_t tb[2]; | |
440 | for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) { | |
441 | if(!fClusters[iTime]) continue; | |
442 | x[irp] = fClusters[iTime]->GetX(); | |
443 | tb[irp] = iTime; | |
444 | irp++; | |
445 | if(irp==2) break; | |
446 | } | |
447 | fdX = (x[1] - x[0]) / (tb[0] - tb[1]); | |
448 | ||
449 | // update X0 from the clusters (calibration/alignment aware) | |
450 | for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) { | |
451 | if(!(layer = chamber->GetTB(iTime))) continue; | |
452 | if(!layer->IsT0()) continue; | |
453 | if(fClusters[iTime]){ | |
454 | fX0 = fClusters[iTime]->GetX(); | |
455 | break; | |
456 | } else { // we have to infere the position of the anode wire from the other clusters | |
457 | for (Int_t jTime = iTime+1; jTime < AliTRDtrackerV1::GetNTimeBins(); jTime++) { | |
458 | if(!fClusters[jTime]) continue; | |
459 | fX0 = fClusters[jTime]->GetX() + fdX * (jTime - iTime); | |
f660dce9 | 460 | break; |
29b87567 | 461 | } |
29b87567 | 462 | } |
463 | } | |
464 | ||
465 | // update YZ reference point | |
466 | // TODO | |
467 | ||
468 | // update x reference positions (calibration/alignment aware) | |
469 | for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) { | |
470 | if(!fClusters[iTime]) continue; | |
0849f128 | 471 | fX[iTime] = fX0 - fClusters[iTime]->GetX(); |
29b87567 | 472 | } |
473 | ||
474 | AliTRDseed::Update(); | |
475 | } | |
35c24814 | 476 | if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker)>=7) AliInfo(Form("iter = %d nclFit [%d] = %d", iter, fDet, fN2)); |
29b87567 | 477 | |
478 | if(IsOK()){ | |
479 | tquality = GetQuality(kZcorr); | |
480 | if(tquality < quality) break; | |
481 | else quality = tquality; | |
482 | } | |
483 | kroadz *= 2.; | |
484 | } // Loop: iter | |
485 | if (!IsOK()) return kFALSE; | |
486 | ||
804bb02e | 487 | if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker)>=1) CookLabels(); |
29b87567 | 488 | UpdateUsed(); |
489 | return kTRUE; | |
e4f2f73d | 490 | } |
491 | ||
492 | //____________________________________________________________________ | |
eb38ed55 | 493 | Bool_t AliTRDseedV1::AttachClusters(AliTRDtrackingChamber *chamber |
29b87567 | 494 | ,Bool_t kZcorr) |
e4f2f73d | 495 | { |
496 | // | |
497 | // Projective algorithm to attach clusters to seeding tracklets | |
498 | // | |
499 | // Parameters | |
500 | // | |
501 | // Output | |
502 | // | |
503 | // Detailed description | |
504 | // 1. Collapse x coordinate for the full detector plane | |
505 | // 2. truncated mean on y (r-phi) direction | |
506 | // 3. purge clusters | |
507 | // 4. truncated mean on z direction | |
508 | // 5. purge clusters | |
509 | // 6. fit tracklet | |
510 | // | |
511 | ||
29b87567 | 512 | if(!fReconstructor->GetRecoParam() ){ |
513 | AliError("Seed can not be used without a valid RecoParam."); | |
514 | return kFALSE; | |
515 | } | |
516 | ||
517 | const Int_t kClusterCandidates = 2 * knTimebins; | |
518 | ||
519 | //define roads | |
520 | Double_t kroady = fReconstructor->GetRecoParam() ->GetRoad1y(); | |
521 | Double_t kroadz = fPadLength * 1.5 + 1.; | |
522 | // correction to y for the tilting angle | |
523 | Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.; | |
524 | ||
525 | // working variables | |
526 | AliTRDcluster *clusters[kClusterCandidates]; | |
527 | Double_t cond[4], yexp[knTimebins], zexp[knTimebins], | |
528 | yres[kClusterCandidates], zres[kClusterCandidates]; | |
529 | Int_t ncl, *index = 0x0, tboundary[knTimebins]; | |
530 | ||
531 | // Do cluster projection | |
532 | AliTRDchamberTimeBin *layer = 0x0; | |
533 | Int_t nYclusters = 0; Bool_t kEXIT = kFALSE; | |
534 | for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) { | |
535 | if(!(layer = chamber->GetTB(iTime))) continue; | |
536 | if(!Int_t(*layer)) continue; | |
537 | ||
538 | fX[iTime] = layer->GetX() - fX0; | |
539 | zexp[iTime] = fZref[0] + fZref[1] * fX[iTime]; | |
540 | yexp[iTime] = fYref[0] + fYref[1] * fX[iTime] - zcorr; | |
541 | ||
542 | // build condition and process clusters | |
543 | cond[0] = yexp[iTime] - kroady; cond[1] = yexp[iTime] + kroady; | |
544 | cond[2] = zexp[iTime] - kroadz; cond[3] = zexp[iTime] + kroadz; | |
545 | layer->GetClusters(cond, index, ncl); | |
546 | for(Int_t ic = 0; ic<ncl; ic++){ | |
547 | AliTRDcluster *c = layer->GetCluster(index[ic]); | |
548 | clusters[nYclusters] = c; | |
549 | yres[nYclusters++] = c->GetY() - yexp[iTime]; | |
550 | if(nYclusters >= kClusterCandidates) { | |
551 | AliWarning(Form("Cluster candidates reached limit %d. Some may be lost.", kClusterCandidates)); | |
552 | kEXIT = kTRUE; | |
553 | break; | |
554 | } | |
555 | } | |
556 | tboundary[iTime] = nYclusters; | |
557 | if(kEXIT) break; | |
558 | } | |
559 | ||
560 | // Evaluate truncated mean on the y direction | |
561 | Double_t mean, sigma; | |
562 | AliMathBase::EvaluateUni(nYclusters, yres, mean, sigma, Int_t(nYclusters*.8)-2); | |
563 | // purge cluster candidates | |
564 | Int_t nZclusters = 0; | |
565 | for(Int_t ic = 0; ic<nYclusters; ic++){ | |
566 | if(yres[ic] - mean > 4. * sigma){ | |
567 | clusters[ic] = 0x0; | |
568 | continue; | |
569 | } | |
570 | zres[nZclusters++] = clusters[ic]->GetZ() - zexp[clusters[ic]->GetLocalTimeBin()]; | |
571 | } | |
572 | ||
573 | // Evaluate truncated mean on the z direction | |
574 | AliMathBase::EvaluateUni(nZclusters, zres, mean, sigma, Int_t(nZclusters*.8)-2); | |
575 | // purge cluster candidates | |
576 | for(Int_t ic = 0; ic<nZclusters; ic++){ | |
577 | if(zres[ic] - mean > 4. * sigma){ | |
578 | clusters[ic] = 0x0; | |
579 | continue; | |
580 | } | |
581 | } | |
582 | ||
583 | ||
584 | // Select only one cluster/TimeBin | |
585 | Int_t lastCluster = 0; | |
586 | fN2 = 0; | |
587 | for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) { | |
588 | ncl = tboundary[iTime] - lastCluster; | |
589 | if(!ncl) continue; | |
590 | Int_t iptr = lastCluster; | |
591 | if(ncl > 1){ | |
592 | Float_t dold = 9999.; | |
593 | for(int ic=lastCluster; ic<tboundary[iTime]; ic++){ | |
594 | if(!clusters[ic]) continue; | |
595 | Float_t y = yexp[iTime] - clusters[ic]->GetY(); | |
596 | Float_t z = zexp[iTime] - clusters[ic]->GetZ(); | |
597 | Float_t d = y * y + z * z; | |
598 | if(d > dold) continue; | |
599 | dold = d; | |
600 | iptr = ic; | |
601 | } | |
602 | } | |
603 | fIndexes[iTime] = chamber->GetTB(iTime)->GetGlobalIndex(iptr); | |
604 | fClusters[iTime] = clusters[iptr]; | |
605 | fY[iTime] = clusters[iptr]->GetY(); | |
606 | fZ[iTime] = clusters[iptr]->GetZ(); | |
607 | lastCluster = tboundary[iTime]; | |
608 | fN2++; | |
609 | } | |
610 | ||
611 | // number of minimum numbers of clusters expected for the tracklet | |
612 | Int_t kClmin = Int_t(fReconstructor->GetRecoParam() ->GetFindableClusters()*AliTRDtrackerV1::GetNTimeBins()); | |
e4f2f73d | 613 | if (fN2 < kClmin){ |
29b87567 | 614 | AliWarning(Form("Not enough clusters to fit the tracklet %d [%d].", fN2, kClmin)); |
e4f2f73d | 615 | fN2 = 0; |
616 | return kFALSE; | |
617 | } | |
0906e73e | 618 | |
29b87567 | 619 | // update used clusters |
620 | fNUsed = 0; | |
621 | for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) { | |
622 | if(!fClusters[iTime]) continue; | |
623 | if((fClusters[iTime]->IsUsed())) fNUsed++; | |
624 | } | |
0906e73e | 625 | |
626 | if (fN2-fNUsed < kClmin){ | |
29b87567 | 627 | AliWarning(Form("Too many clusters already in use %d (from %d).", fNUsed, fN2)); |
0906e73e | 628 | fN2 = 0; |
629 | return kFALSE; | |
630 | } | |
29b87567 | 631 | |
632 | return kTRUE; | |
e4f2f73d | 633 | } |
634 | ||
03cef9b2 | 635 | //____________________________________________________________ |
636 | void AliTRDseedV1::Bootstrap(const AliTRDReconstructor *rec) | |
637 | { | |
638 | // Fill in all derived information. It has to be called after recovery from file or HLT. | |
639 | // The primitive data are | |
640 | // - list of clusters | |
641 | // - detector (as the detector will be removed from clusters) | |
642 | // - position of anode wire (fX0) - temporary | |
643 | // - track reference position and direction | |
644 | // - momentum of the track | |
645 | // - time bin length [cm] | |
646 | // | |
647 | // A.Bercuci <A.Bercuci@gsi.de> Oct 30th 2008 | |
648 | // | |
649 | fReconstructor = rec; | |
650 | AliTRDgeometry g; | |
651 | AliTRDpadPlane *pp = g.GetPadPlane(fDet); | |
652 | fTilt = TMath::Tan(TMath::DegToRad()*pp->GetTiltingAngle()); | |
653 | fPadLength = pp->GetLengthIPad(); | |
654 | fSnp = fYref[1]/TMath::Sqrt(1+fYref[1]*fYref[1]); | |
655 | fTgl = fZref[1]; | |
656 | fN = 0; fN2 = 0; fMPads = 0.; | |
657 | AliTRDcluster **cit = &fClusters[0]; | |
658 | for(Int_t ic = knTimebins; ic--; cit++){ | |
659 | if(!(*cit)) return; | |
660 | fN++; fN2++; | |
661 | fX[ic] = (*cit)->GetX() - fX0; | |
662 | fY[ic] = (*cit)->GetY(); | |
663 | fZ[ic] = (*cit)->GetZ(); | |
664 | } | |
665 | Update(); // Fit(); | |
666 | CookLabels(); | |
667 | GetProbability(); | |
668 | } | |
669 | ||
670 | ||
e4f2f73d | 671 | //____________________________________________________________________ |
d2b9977a | 672 | Bool_t AliTRDseedV1::Fit(Bool_t tilt) |
e4f2f73d | 673 | { |
674 | // | |
675 | // Linear fit of the tracklet | |
676 | // | |
677 | // Parameters : | |
678 | // | |
679 | // Output : | |
680 | // True if successful | |
681 | // | |
682 | // Detailed description | |
683 | // 2. Check if tracklet crosses pad row boundary | |
684 | // 1. Calculate residuals in the y (r-phi) direction | |
685 | // 3. Do a Least Square Fit to the data | |
686 | // | |
687 | ||
29b87567 | 688 | const Int_t kClmin = 8; |
9462866a | 689 | // drift velocity correction TODO to be moved to the clusterizer |
690 | const Float_t cx[] = { | |
691 | 0.044168, 0.130812, -0.017411, -0.099284, -0.120416, -0.095457, | |
692 | -0.050021, -0.016758, 0.003570, 0.018618, 0.026380, 0.033786, 0.034889, 0.035264, | |
693 | 0.035284, 0.036028, 0.035250, 0.034368, 0.032823, 0.031937, 0.032064, 0.022542, | |
694 | -0.025167, -0.120645, 0.}; | |
695 | ||
696 | // cluster error parametrization parameters | |
697 | // 1. total charge | |
698 | const Float_t sq0inv = 0.019962; // [1/q0] | |
699 | const Float_t sqb = 1.0281564; //[cm] | |
700 | // 2. sy parallel to the track | |
701 | const Float_t sy0 = 2.60967e-01; // [mm] !! | |
702 | const Float_t sya =-7.68941e+00; // | |
703 | const Float_t syb =-3.41160e-01; // | |
704 | // 3. sx parallel to the track | |
705 | const Float_t sxgc = 5.49018e-01; | |
706 | const Float_t sxgm = 7.82999e-01; | |
707 | const Float_t sxgs = 2.74451e-01; | |
708 | const Float_t sxe0 = 2.53596e-01; | |
709 | const Float_t sxe1 =-2.40078e-02; | |
710 | // 4. sx perpendicular to the track | |
711 | // const Float_t sxd0 = 0.190676; | |
712 | // const Float_t sxd1 =-3.9269; | |
713 | // const Float_t sxd2 =14.7851; | |
714 | ||
2f7d6ac8 | 715 | // get track direction |
716 | Double_t y0 = fYref[0]; | |
717 | Double_t dydx = fYref[1]; | |
718 | Double_t z0 = fZref[0]; | |
719 | Double_t dzdx = fZref[1]; | |
720 | Double_t yt, zt; | |
ae4e8b84 | 721 | |
29b87567 | 722 | const Int_t kNtb = AliTRDtrackerV1::GetNTimeBins(); |
24d8660e | 723 | AliTRDtrackerV1::AliTRDLeastSquare fitterZ; |
724 | TLinearFitter fitterY(1, "pol1"); | |
29b87567 | 725 | // convertion factor from square to gauss distribution for sigma |
726 | Double_t convert = 1./TMath::Sqrt(12.); | |
ae4e8b84 | 727 | |
29b87567 | 728 | // book cluster information |
9462866a | 729 | Double_t q, xc[knTimebins], yc[knTimebins], zc[knTimebins], sy[knTimebins], sz[knTimebins]; |
29b87567 | 730 | Int_t zRow[knTimebins]; |
9462866a | 731 | |
732 | // TODO move as data member of the tracklet | |
733 | // TODO calculate for the exact position of the tracklet (det, col, row) | |
734 | Double_t exb = -.16; | |
2f7d6ac8 | 735 | |
736 | fN = 0; | |
9eb2d46c | 737 | AliTRDcluster *c=0x0, **jc = &fClusters[0]; |
9eb2d46c | 738 | for (Int_t ic=0; ic<kNtb; ic++, ++jc) { |
29b87567 | 739 | zRow[ic] = -1; |
740 | xc[ic] = -1.; | |
741 | yc[ic] = 999.; | |
742 | zc[ic] = 999.; | |
743 | sy[ic] = 0.; | |
744 | sz[ic] = 0.; | |
9eb2d46c | 745 | if(!(c = (*jc))) continue; |
29b87567 | 746 | if(!c->IsInChamber()) continue; |
9462866a | 747 | |
29b87567 | 748 | Float_t w = 1.; |
749 | if(c->GetNPads()>4) w = .5; | |
750 | if(c->GetNPads()>5) w = .2; | |
2f7d6ac8 | 751 | zRow[fN] = c->GetPadRow(); |
9462866a | 752 | xc[fN] = fX0 - c->GetX() + cx[c->GetLocalTimeBin()]; |
2f7d6ac8 | 753 | yc[fN] = c->GetY(); |
754 | zc[fN] = c->GetZ(); | |
755 | ||
756 | // extrapolated y value for the track | |
757 | yt = y0 - xc[fN]*dydx; | |
758 | // extrapolated z value for the track | |
759 | zt = z0 - xc[fN]*dzdx; | |
760 | // tilt correction | |
761 | if(tilt) yc[fN] -= fTilt*(zc[fN] - zt); | |
762 | ||
763 | // elaborate cluster error | |
9462866a | 764 | q = TMath::Abs(c->GetQ()); |
765 | Double_t tgg = (dydx-exb)/(1.+dydx*exb); | |
766 | // error of drift length parallel to the track | |
767 | Double_t sx = sxgc*TMath::Gaus(xc[fN], sxgm, sxgs) + sxe0*TMath::Exp(sxe1*xc[fN]); // [cm] | |
768 | // error of drift length perpendicular to the track | |
769 | //sx += sxd0 + sxd1*d + sxd2*d*d; | |
770 | // global radial error due to misalignment/miscalibration | |
771 | Double_t sx0 = 0.; // [cm] | |
772 | sy[fN] = sy0 + TMath::Exp(sya*(xc[fN]+syb)) + sqb*(1./q - sq0inv); | |
773 | sy[fN] *= sy[fN]; | |
774 | // add error on x | |
775 | sy[fN] += tgg*tgg*(sx*sx+sx0*sx0); | |
776 | // add error from ExB | |
777 | sy[fN] += exb*exb*sx*sx; | |
778 | sy[fN] = TMath::Sqrt(sy[fN]); | |
24d8660e | 779 | fitterY.AddPoint(&xc[fN], yc[fN]/*-yt*/, sy[fN]); |
2f7d6ac8 | 780 | |
781 | sz[fN] = fPadLength*convert; | |
782 | fitterZ.AddPoint(&xc[fN], zc[fN], sz[fN]); | |
783 | fN++; | |
29b87567 | 784 | } |
47d5d320 | 785 | // to few clusters |
2f7d6ac8 | 786 | if (fN < kClmin) return kFALSE; |
787 | ||
788 | // fit XY plane | |
789 | fitterY.Eval(); | |
24d8660e | 790 | fYfit[0] = /*y0+*/fitterY.GetParameter(0); |
791 | fYfit[1] = /*dydx-*/-fitterY.GetParameter(1); | |
2f7d6ac8 | 792 | |
793 | // check par row crossing | |
794 | Int_t zN[2*AliTRDseed::knTimebins]; | |
795 | Int_t nz = AliTRDtrackerV1::Freq(fN, zRow, zN, kFALSE); | |
29b87567 | 796 | // more than one pad row crossing |
797 | if(nz>2) return kFALSE; | |
9eb2d46c | 798 | |
29b87567 | 799 | |
800 | // determine z offset of the fit | |
2f7d6ac8 | 801 | Float_t zslope = 0.; |
29b87567 | 802 | Int_t nchanges = 0, nCross = 0; |
803 | if(nz==2){ // tracklet is crossing pad row | |
804 | // Find the break time allowing one chage on pad-rows | |
805 | // with maximal number of accepted clusters | |
806 | Int_t padRef = zRow[0]; | |
2f7d6ac8 | 807 | for (Int_t ic=1; ic<fN; ic++) { |
29b87567 | 808 | if(zRow[ic] == padRef) continue; |
809 | ||
810 | // debug | |
811 | if(zRow[ic-1] == zRow[ic]){ | |
812 | printf("ERROR in pad row change!!!\n"); | |
813 | } | |
814 | ||
815 | // evaluate parameters of the crossing point | |
816 | Float_t sx = (xc[ic-1] - xc[ic])*convert; | |
2f7d6ac8 | 817 | fCross[0] = .5 * (xc[ic-1] + xc[ic]); |
818 | fCross[2] = .5 * (zc[ic-1] + zc[ic]); | |
819 | fCross[3] = TMath::Max(dzdx * sx, .01); | |
820 | zslope = zc[ic-1] > zc[ic] ? 1. : -1.; | |
821 | padRef = zRow[ic]; | |
822 | nCross = ic; | |
29b87567 | 823 | nchanges++; |
824 | } | |
825 | } | |
826 | ||
827 | // condition on nCross and reset nchanges TODO | |
828 | ||
829 | if(nchanges==1){ | |
2f7d6ac8 | 830 | if(dzdx * zslope < 0.){ |
29b87567 | 831 | AliInfo("tracklet direction does not correspond to the track direction. TODO."); |
832 | } | |
833 | SetBit(kRowCross, kTRUE); // mark pad row crossing | |
2f7d6ac8 | 834 | fitterZ.AddPoint(&fCross[0], fCross[2], fCross[3]); |
29b87567 | 835 | fitterZ.Eval(); |
2f7d6ac8 | 836 | //zc[nc] = fitterZ.GetFunctionParameter(0); |
837 | fCross[1] = fYfit[0] - fCross[0] * fYfit[1]; | |
838 | fCross[0] = fX0 - fCross[0]; | |
29b87567 | 839 | } else if(nchanges > 1){ // debug |
2389e96f | 840 | AliError("N pad row crossing > 1."); |
29b87567 | 841 | return kFALSE; |
842 | } | |
843 | ||
2389e96f | 844 | UpdateUsed(); |
845 | ||
29b87567 | 846 | return kTRUE; |
e4f2f73d | 847 | } |
848 | ||
e4f2f73d | 849 | |
850 | //___________________________________________________________________ | |
203967fc | 851 | void AliTRDseedV1::Print(Option_t *o) const |
e4f2f73d | 852 | { |
853 | // | |
854 | // Printing the seedstatus | |
855 | // | |
856 | ||
203967fc | 857 | AliInfo(Form("Det[%3d] Tilt[%+6.2f] Pad[%5.2f]", fDet, fTilt, fPadLength)); |
858 | AliInfo(Form("Nattach[%2d] Nfit[%2d] Nuse[%2d] pads[%f]", fN, fN2, fNUsed, fMPads)); | |
859 | AliInfo(Form("x[%7.2f] y[%7.2f] z[%7.2f] dydx[%5.2f] dzdx[%5.2f]", fX0, fYfit[0], fZfit[0], fYfit[1], fZfit[1])); | |
860 | AliInfo(Form("Ref y[%7.2f] z[%7.2f] dydx[%5.2f] dzdx[%5.2f]", fYref[0], fZref[0], fYref[1], fZref[1])) | |
861 | ||
862 | ||
863 | if(strcmp(o, "a")!=0) return; | |
864 | ||
4dc4dc2e | 865 | AliTRDcluster* const* jc = &fClusters[0]; |
866 | for(int ic=0; ic<AliTRDtrackerV1::GetNTimeBins(); ic++, jc++) { | |
867 | if(!(*jc)) continue; | |
203967fc | 868 | (*jc)->Print(o); |
4dc4dc2e | 869 | } |
e4f2f73d | 870 | |
203967fc | 871 | /* printf(" fSigmaY =%f\n", fSigmaY); |
29b87567 | 872 | printf(" fSigmaY2=%f\n", fSigmaY2); |
873 | printf(" fMeanz =%f\n", fMeanz); | |
874 | printf(" fZProb =%f\n", fZProb); | |
203967fc | 875 | printf(" fLabels[0]=%d fLabels[1]=%d\n", fLabels[0], fLabels[1]);*/ |
29b87567 | 876 | |
203967fc | 877 | /* printf(" fC =%f\n", fC); |
29b87567 | 878 | printf(" fCC =%f\n",fCC); |
879 | printf(" fChi2 =%f\n", fChi2); | |
203967fc | 880 | printf(" fChi2Z =%f\n", fChi2Z);*/ |
e4f2f73d | 881 | } |
47d5d320 | 882 | |
203967fc | 883 | |
884 | //___________________________________________________________________ | |
885 | Bool_t AliTRDseedV1::IsEqual(const TObject *o) const | |
886 | { | |
887 | // Checks if current instance of the class has the same essential members | |
888 | // as the given one | |
889 | ||
890 | if(!o) return kFALSE; | |
891 | const AliTRDseedV1 *inTracklet = dynamic_cast<const AliTRDseedV1*>(o); | |
892 | if(!inTracklet) return kFALSE; | |
893 | ||
894 | for (Int_t i = 0; i < 2; i++){ | |
895 | if ( fYref[i] != inTracklet->GetYref(i) ) return kFALSE; | |
896 | if ( fZref[i] != inTracklet->GetZref(i) ) return kFALSE; | |
897 | } | |
898 | ||
899 | if ( fSigmaY != inTracklet->GetSigmaY() ) return kFALSE; | |
900 | if ( fSigmaY2 != inTracklet->GetSigmaY2() ) return kFALSE; | |
901 | if ( fTilt != inTracklet->GetTilt() ) return kFALSE; | |
902 | if ( fPadLength != inTracklet->GetPadLength() ) return kFALSE; | |
903 | ||
904 | for (Int_t i = 0; i < knTimebins; i++){ | |
905 | if ( fX[i] != inTracklet->GetX(i) ) return kFALSE; | |
906 | if ( fY[i] != inTracklet->GetY(i) ) return kFALSE; | |
907 | if ( fZ[i] != inTracklet->GetZ(i) ) return kFALSE; | |
908 | if ( fIndexes[i] != inTracklet->GetIndexes(i) ) return kFALSE; | |
909 | if ( fUsable[i] != inTracklet->IsUsable(i) ) return kFALSE; | |
910 | } | |
911 | ||
912 | for (Int_t i=0; i < 2; i++){ | |
913 | if ( fYfit[i] != inTracklet->GetYfit(i) ) return kFALSE; | |
914 | if ( fZfit[i] != inTracklet->GetZfit(i) ) return kFALSE; | |
915 | if ( fYfitR[i] != inTracklet->GetYfitR(i) ) return kFALSE; | |
916 | if ( fZfitR[i] != inTracklet->GetZfitR(i) ) return kFALSE; | |
917 | if ( fLabels[i] != inTracklet->GetLabels(i) ) return kFALSE; | |
918 | } | |
919 | ||
920 | if ( fMeanz != inTracklet->GetMeanz() ) return kFALSE; | |
921 | if ( fZProb != inTracklet->GetZProb() ) return kFALSE; | |
922 | if ( fN2 != inTracklet->GetN2() ) return kFALSE; | |
923 | if ( fNUsed != inTracklet->GetNUsed() ) return kFALSE; | |
924 | if ( fFreq != inTracklet->GetFreq() ) return kFALSE; | |
925 | if ( fNChange != inTracklet->GetNChange() ) return kFALSE; | |
926 | if ( fNChange != inTracklet->GetNChange() ) return kFALSE; | |
927 | ||
928 | if ( fC != inTracklet->GetC() ) return kFALSE; | |
929 | if ( fCC != inTracklet->GetCC() ) return kFALSE; | |
930 | if ( fChi2 != inTracklet->GetChi2() ) return kFALSE; | |
931 | // if ( fChi2Z != inTracklet->GetChi2Z() ) return kFALSE; | |
932 | ||
933 | if ( fDet != inTracklet->GetDetector() ) return kFALSE; | |
934 | if ( fMom != inTracklet->GetMomentum() ) return kFALSE; | |
935 | if ( fdX != inTracklet->GetdX() ) return kFALSE; | |
936 | ||
937 | for (Int_t iCluster = 0; iCluster < knTimebins; iCluster++){ | |
938 | AliTRDcluster *curCluster = fClusters[iCluster]; | |
939 | AliTRDcluster *inCluster = inTracklet->GetClusters(iCluster); | |
940 | if (curCluster && inCluster){ | |
941 | if (! curCluster->IsEqual(inCluster) ) { | |
942 | curCluster->Print(); | |
943 | inCluster->Print(); | |
944 | return kFALSE; | |
945 | } | |
946 | } else { | |
947 | // if one cluster exists, and corresponding | |
948 | // in other tracklet doesn't - return kFALSE | |
949 | if(curCluster || inCluster) return kFALSE; | |
950 | } | |
951 | } | |
952 | return kTRUE; | |
953 | } |