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.}; |
010d62b0 |
695 | // PRF correction TODO to be replaced by the gaussian |
696 | // approximation with full error parametrization and // moved to the clusterizer |
697 | const Float_t cy[AliTRDgeometry::kNlayer][3] = { |
698 | {0.000413, -0.008896, 6.858256}, |
699 | {-0.000324, -0.009979, 6.649032}, |
700 | {0.000886, -0.011371, 6.952959}, |
701 | {-0.001558, -0.012692, 6.790299}, |
702 | {0.002195, -0.014308, 6.855086}, |
703 | {-0.001229, -0.015282, 6.612536} |
704 | }; |
705 | |
9462866a |
706 | |
707 | // cluster error parametrization parameters |
010d62b0 |
708 | // 1. sy total charge |
9462866a |
709 | const Float_t sq0inv = 0.019962; // [1/q0] |
710 | const Float_t sqb = 1.0281564; //[cm] |
010d62b0 |
711 | // 2. sy for the PRF |
712 | const Float_t scy[AliTRDgeometry::kNlayer][4] = { |
713 | {2.813e-02, 1.879e-03, 4.331e-01, 2.267e-02}, |
714 | {2.937e-02, 7.207e-04, 4.184e-01, 2.337e-02}, |
715 | {3.076e-02, 1.890e-03, 4.050e-01, 2.399e-02}, |
716 | {3.240e-02, -1.409e-05, 3.994e-01, 2.508e-02}, |
717 | {3.417e-02, -5.888e-04, 3.924e-01, 2.621e-02}, |
718 | {3.493e-02, 2.044e-03, 3.675e-01, 2.585e-02}, |
719 | }; |
720 | // 3. sy parallel to the track |
9462866a |
721 | const Float_t sy0 = 2.60967e-01; // [mm] !! |
722 | const Float_t sya =-7.68941e+00; // |
723 | const Float_t syb =-3.41160e-01; // |
010d62b0 |
724 | // 4. sx parallel to the track |
9462866a |
725 | const Float_t sxgc = 5.49018e-01; |
726 | const Float_t sxgm = 7.82999e-01; |
727 | const Float_t sxgs = 2.74451e-01; |
728 | const Float_t sxe0 = 2.53596e-01; |
729 | const Float_t sxe1 =-2.40078e-02; |
010d62b0 |
730 | // 5. sx perpendicular to the track |
9462866a |
731 | // const Float_t sxd0 = 0.190676; |
732 | // const Float_t sxd1 =-3.9269; |
733 | // const Float_t sxd2 =14.7851; |
734 | |
2f7d6ac8 |
735 | // get track direction |
736 | Double_t y0 = fYref[0]; |
737 | Double_t dydx = fYref[1]; |
738 | Double_t z0 = fZref[0]; |
739 | Double_t dzdx = fZref[1]; |
740 | Double_t yt, zt; |
ae4e8b84 |
741 | |
29b87567 |
742 | const Int_t kNtb = AliTRDtrackerV1::GetNTimeBins(); |
24d8660e |
743 | AliTRDtrackerV1::AliTRDLeastSquare fitterZ; |
744 | TLinearFitter fitterY(1, "pol1"); |
29b87567 |
745 | // convertion factor from square to gauss distribution for sigma |
746 | Double_t convert = 1./TMath::Sqrt(12.); |
ae4e8b84 |
747 | |
29b87567 |
748 | // book cluster information |
9462866a |
749 | Double_t q, xc[knTimebins], yc[knTimebins], zc[knTimebins], sy[knTimebins], sz[knTimebins]; |
29b87567 |
750 | Int_t zRow[knTimebins]; |
9462866a |
751 | |
752 | // TODO move as data member of the tracklet |
753 | // TODO calculate for the exact position of the tracklet (det, col, row) |
754 | Double_t exb = -.16; |
010d62b0 |
755 | |
756 | Int_t ily = AliTRDgeometry::GetLayer(fDet); |
2f7d6ac8 |
757 | fN = 0; |
9eb2d46c |
758 | AliTRDcluster *c=0x0, **jc = &fClusters[0]; |
9eb2d46c |
759 | for (Int_t ic=0; ic<kNtb; ic++, ++jc) { |
29b87567 |
760 | zRow[ic] = -1; |
761 | xc[ic] = -1.; |
762 | yc[ic] = 999.; |
763 | zc[ic] = 999.; |
764 | sy[ic] = 0.; |
765 | sz[ic] = 0.; |
9eb2d46c |
766 | if(!(c = (*jc))) continue; |
29b87567 |
767 | if(!c->IsInChamber()) continue; |
9462866a |
768 | |
29b87567 |
769 | Float_t w = 1.; |
770 | if(c->GetNPads()>4) w = .5; |
771 | if(c->GetNPads()>5) w = .2; |
010d62b0 |
772 | |
773 | // correct cluster position for PRF and v drift |
774 | c->SetX(c->GetX() - cx[c->GetLocalTimeBin()]); |
775 | c->SetY(c->GetY() + cy[ily][0] + cy[ily][1] * TMath::Sin(cy[ily][2] * c->GetCenter())); |
776 | |
2f7d6ac8 |
777 | zRow[fN] = c->GetPadRow(); |
010d62b0 |
778 | xc[fN] = fX0 - c->GetX(); |
2f7d6ac8 |
779 | yc[fN] = c->GetY(); |
780 | zc[fN] = c->GetZ(); |
781 | |
782 | // extrapolated y value for the track |
783 | yt = y0 - xc[fN]*dydx; |
784 | // extrapolated z value for the track |
785 | zt = z0 - xc[fN]*dzdx; |
786 | // tilt correction |
787 | if(tilt) yc[fN] -= fTilt*(zc[fN] - zt); |
788 | |
010d62b0 |
789 | // ELABORATE CLUSTER ERROR |
790 | // TODO to be moved to AliTRDcluster |
9462866a |
791 | q = TMath::Abs(c->GetQ()); |
792 | Double_t tgg = (dydx-exb)/(1.+dydx*exb); |
010d62b0 |
793 | // basic y error (|| to track). |
794 | sy[fN] = sy0 + TMath::Exp(sya*(xc[fN]+syb)); |
795 | // y error due to total charge |
796 | sy[fN] += sqb*(1./q - sq0inv); |
797 | // y error due to PRF |
798 | sy[fN] += scy[ily][0]*TMath::Gaus(c->GetCenter(), scy[ily][1], scy[ily][2]) - scy[ily][3]; |
799 | sy[fN] *= sy[fN]; |
800 | |
801 | // ADD ERROR ON x |
9462866a |
802 | // error of drift length parallel to the track |
803 | Double_t sx = sxgc*TMath::Gaus(xc[fN], sxgm, sxgs) + sxe0*TMath::Exp(sxe1*xc[fN]); // [cm] |
804 | // error of drift length perpendicular to the track |
805 | //sx += sxd0 + sxd1*d + sxd2*d*d; |
806 | // global radial error due to misalignment/miscalibration |
807 | Double_t sx0 = 0.; // [cm] |
9462866a |
808 | sy[fN] += tgg*tgg*(sx*sx+sx0*sx0); |
809 | // add error from ExB |
810 | sy[fN] += exb*exb*sx*sx; |
811 | sy[fN] = TMath::Sqrt(sy[fN]); |
24d8660e |
812 | fitterY.AddPoint(&xc[fN], yc[fN]/*-yt*/, sy[fN]); |
2f7d6ac8 |
813 | |
814 | sz[fN] = fPadLength*convert; |
815 | fitterZ.AddPoint(&xc[fN], zc[fN], sz[fN]); |
816 | fN++; |
29b87567 |
817 | } |
47d5d320 |
818 | // to few clusters |
2f7d6ac8 |
819 | if (fN < kClmin) return kFALSE; |
820 | |
821 | // fit XY plane |
822 | fitterY.Eval(); |
24d8660e |
823 | fYfit[0] = /*y0+*/fitterY.GetParameter(0); |
824 | fYfit[1] = /*dydx-*/-fitterY.GetParameter(1); |
2f7d6ac8 |
825 | |
826 | // check par row crossing |
827 | Int_t zN[2*AliTRDseed::knTimebins]; |
828 | Int_t nz = AliTRDtrackerV1::Freq(fN, zRow, zN, kFALSE); |
29b87567 |
829 | // more than one pad row crossing |
830 | if(nz>2) return kFALSE; |
9eb2d46c |
831 | |
29b87567 |
832 | |
833 | // determine z offset of the fit |
2f7d6ac8 |
834 | Float_t zslope = 0.; |
29b87567 |
835 | Int_t nchanges = 0, nCross = 0; |
836 | if(nz==2){ // tracklet is crossing pad row |
837 | // Find the break time allowing one chage on pad-rows |
838 | // with maximal number of accepted clusters |
839 | Int_t padRef = zRow[0]; |
2f7d6ac8 |
840 | for (Int_t ic=1; ic<fN; ic++) { |
29b87567 |
841 | if(zRow[ic] == padRef) continue; |
842 | |
843 | // debug |
844 | if(zRow[ic-1] == zRow[ic]){ |
845 | printf("ERROR in pad row change!!!\n"); |
846 | } |
847 | |
848 | // evaluate parameters of the crossing point |
849 | Float_t sx = (xc[ic-1] - xc[ic])*convert; |
2f7d6ac8 |
850 | fCross[0] = .5 * (xc[ic-1] + xc[ic]); |
851 | fCross[2] = .5 * (zc[ic-1] + zc[ic]); |
852 | fCross[3] = TMath::Max(dzdx * sx, .01); |
853 | zslope = zc[ic-1] > zc[ic] ? 1. : -1.; |
854 | padRef = zRow[ic]; |
855 | nCross = ic; |
29b87567 |
856 | nchanges++; |
857 | } |
858 | } |
859 | |
860 | // condition on nCross and reset nchanges TODO |
861 | |
862 | if(nchanges==1){ |
2f7d6ac8 |
863 | if(dzdx * zslope < 0.){ |
29b87567 |
864 | AliInfo("tracklet direction does not correspond to the track direction. TODO."); |
865 | } |
866 | SetBit(kRowCross, kTRUE); // mark pad row crossing |
2f7d6ac8 |
867 | fitterZ.AddPoint(&fCross[0], fCross[2], fCross[3]); |
29b87567 |
868 | fitterZ.Eval(); |
2f7d6ac8 |
869 | //zc[nc] = fitterZ.GetFunctionParameter(0); |
870 | fCross[1] = fYfit[0] - fCross[0] * fYfit[1]; |
871 | fCross[0] = fX0 - fCross[0]; |
29b87567 |
872 | } else if(nchanges > 1){ // debug |
2389e96f |
873 | AliError("N pad row crossing > 1."); |
29b87567 |
874 | return kFALSE; |
875 | } |
876 | |
2389e96f |
877 | UpdateUsed(); |
878 | |
29b87567 |
879 | return kTRUE; |
e4f2f73d |
880 | } |
881 | |
e4f2f73d |
882 | |
883 | //___________________________________________________________________ |
203967fc |
884 | void AliTRDseedV1::Print(Option_t *o) const |
e4f2f73d |
885 | { |
886 | // |
887 | // Printing the seedstatus |
888 | // |
889 | |
203967fc |
890 | AliInfo(Form("Det[%3d] Tilt[%+6.2f] Pad[%5.2f]", fDet, fTilt, fPadLength)); |
891 | AliInfo(Form("Nattach[%2d] Nfit[%2d] Nuse[%2d] pads[%f]", fN, fN2, fNUsed, fMPads)); |
892 | 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])); |
893 | AliInfo(Form("Ref y[%7.2f] z[%7.2f] dydx[%5.2f] dzdx[%5.2f]", fYref[0], fZref[0], fYref[1], fZref[1])) |
894 | |
895 | |
896 | if(strcmp(o, "a")!=0) return; |
897 | |
4dc4dc2e |
898 | AliTRDcluster* const* jc = &fClusters[0]; |
899 | for(int ic=0; ic<AliTRDtrackerV1::GetNTimeBins(); ic++, jc++) { |
900 | if(!(*jc)) continue; |
203967fc |
901 | (*jc)->Print(o); |
4dc4dc2e |
902 | } |
e4f2f73d |
903 | |
203967fc |
904 | /* printf(" fSigmaY =%f\n", fSigmaY); |
29b87567 |
905 | printf(" fSigmaY2=%f\n", fSigmaY2); |
906 | printf(" fMeanz =%f\n", fMeanz); |
907 | printf(" fZProb =%f\n", fZProb); |
203967fc |
908 | printf(" fLabels[0]=%d fLabels[1]=%d\n", fLabels[0], fLabels[1]);*/ |
29b87567 |
909 | |
203967fc |
910 | /* printf(" fC =%f\n", fC); |
29b87567 |
911 | printf(" fCC =%f\n",fCC); |
912 | printf(" fChi2 =%f\n", fChi2); |
203967fc |
913 | printf(" fChi2Z =%f\n", fChi2Z);*/ |
e4f2f73d |
914 | } |
47d5d320 |
915 | |
203967fc |
916 | |
917 | //___________________________________________________________________ |
918 | Bool_t AliTRDseedV1::IsEqual(const TObject *o) const |
919 | { |
920 | // Checks if current instance of the class has the same essential members |
921 | // as the given one |
922 | |
923 | if(!o) return kFALSE; |
924 | const AliTRDseedV1 *inTracklet = dynamic_cast<const AliTRDseedV1*>(o); |
925 | if(!inTracklet) return kFALSE; |
926 | |
927 | for (Int_t i = 0; i < 2; i++){ |
928 | if ( fYref[i] != inTracklet->GetYref(i) ) return kFALSE; |
929 | if ( fZref[i] != inTracklet->GetZref(i) ) return kFALSE; |
930 | } |
931 | |
932 | if ( fSigmaY != inTracklet->GetSigmaY() ) return kFALSE; |
933 | if ( fSigmaY2 != inTracklet->GetSigmaY2() ) return kFALSE; |
934 | if ( fTilt != inTracklet->GetTilt() ) return kFALSE; |
935 | if ( fPadLength != inTracklet->GetPadLength() ) return kFALSE; |
936 | |
937 | for (Int_t i = 0; i < knTimebins; i++){ |
938 | if ( fX[i] != inTracklet->GetX(i) ) return kFALSE; |
939 | if ( fY[i] != inTracklet->GetY(i) ) return kFALSE; |
940 | if ( fZ[i] != inTracklet->GetZ(i) ) return kFALSE; |
941 | if ( fIndexes[i] != inTracklet->GetIndexes(i) ) return kFALSE; |
942 | if ( fUsable[i] != inTracklet->IsUsable(i) ) return kFALSE; |
943 | } |
944 | |
945 | for (Int_t i=0; i < 2; i++){ |
946 | if ( fYfit[i] != inTracklet->GetYfit(i) ) return kFALSE; |
947 | if ( fZfit[i] != inTracklet->GetZfit(i) ) return kFALSE; |
948 | if ( fYfitR[i] != inTracklet->GetYfitR(i) ) return kFALSE; |
949 | if ( fZfitR[i] != inTracklet->GetZfitR(i) ) return kFALSE; |
950 | if ( fLabels[i] != inTracklet->GetLabels(i) ) return kFALSE; |
951 | } |
952 | |
953 | if ( fMeanz != inTracklet->GetMeanz() ) return kFALSE; |
954 | if ( fZProb != inTracklet->GetZProb() ) return kFALSE; |
955 | if ( fN2 != inTracklet->GetN2() ) return kFALSE; |
956 | if ( fNUsed != inTracklet->GetNUsed() ) return kFALSE; |
957 | if ( fFreq != inTracklet->GetFreq() ) return kFALSE; |
958 | if ( fNChange != inTracklet->GetNChange() ) return kFALSE; |
959 | if ( fNChange != inTracklet->GetNChange() ) return kFALSE; |
960 | |
961 | if ( fC != inTracklet->GetC() ) return kFALSE; |
962 | if ( fCC != inTracklet->GetCC() ) return kFALSE; |
963 | if ( fChi2 != inTracklet->GetChi2() ) return kFALSE; |
964 | // if ( fChi2Z != inTracklet->GetChi2Z() ) return kFALSE; |
965 | |
966 | if ( fDet != inTracklet->GetDetector() ) return kFALSE; |
967 | if ( fMom != inTracklet->GetMomentum() ) return kFALSE; |
968 | if ( fdX != inTracklet->GetdX() ) return kFALSE; |
969 | |
970 | for (Int_t iCluster = 0; iCluster < knTimebins; iCluster++){ |
971 | AliTRDcluster *curCluster = fClusters[iCluster]; |
972 | AliTRDcluster *inCluster = inTracklet->GetClusters(iCluster); |
973 | if (curCluster && inCluster){ |
974 | if (! curCluster->IsEqual(inCluster) ) { |
975 | curCluster->Print(); |
976 | inCluster->Print(); |
977 | return kFALSE; |
978 | } |
979 | } else { |
980 | // if one cluster exists, and corresponding |
981 | // in other tracklet doesn't - return kFALSE |
982 | if(curCluster || inCluster) return kFALSE; |
983 | } |
984 | } |
985 | return kTRUE; |
986 | } |