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81e97e0d | 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 | ||
16 | ||
17 | ||
18 | ||
19 | //----------------------------------------------------------------- | |
20 | // Implementation of the TPC seed class | |
21 | // This class is used by the AliTPCtrackerMI class | |
22 | // Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch | |
23 | //----------------------------------------------------------------- | |
24 | #include "TClonesArray.h" | |
2efc897f | 25 | #include "TGraphErrors.h" |
81e97e0d | 26 | #include "AliTPCseed.h" |
3f82c4f2 | 27 | #include "AliTPCReconstructor.h" |
0a65832b | 28 | #include "AliTPCClusterParam.h" |
7cd8ac3f | 29 | #include "AliTPCCalPad.h" |
30 | #include "AliTPCCalROC.h" | |
37540068 | 31 | #include "AliTPCcalibDB.h" |
d080e4a4 | 32 | #include "AliTPCParam.h" |
5731b051 | 33 | #include "AliMathBase.h" |
3af3fbc4 | 34 | #include "AliTPCTransform.h" |
35 | #include "AliSplineFit.h" | |
36 | #include "AliCDBManager.h" | |
108a67db | 37 | #include "AliTPCcalibDButil.h" |
7cd8ac3f | 38 | |
81e97e0d | 39 | |
40 | ClassImp(AliTPCseed) | |
41 | ||
42 | ||
43 | ||
32fab534 | 44 | AliTPCseed::AliTPCseed(): |
45 | AliTPCtrack(), | |
46 | fEsd(0x0), | |
2928bdf0 | 47 | fClusterOwner(kFALSE), |
32fab534 | 48 | fRow(0), |
49 | fSector(-1), | |
50 | fRelativeSector(-1), | |
51 | fCurrentSigmaY2(1e10), | |
52 | fCurrentSigmaZ2(1e10), | |
e0e13b88 | 53 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
54 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 55 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
56 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
e0e13b88 | 57 | // |
32fab534 | 58 | fErrorY2(1e10), |
59 | fErrorZ2(1e10), | |
60 | fCurrentCluster(0x0), | |
61 | fCurrentClusterIndex1(-1), | |
62 | fInDead(kFALSE), | |
63 | fIsSeeding(kFALSE), | |
64 | fNoCluster(0), | |
65 | fSort(0), | |
66 | fBSigned(kFALSE), | |
67 | fSeedType(0), | |
68 | fSeed1(-1), | |
69 | fSeed2(-1), | |
70 | fMAngular(0), | |
19b00333 | 71 | fCircular(0), |
72 | fClusterMap(159), | |
73 | fSharedMap(159) | |
32fab534 | 74 | { |
81e97e0d | 75 | // |
5c09947e | 76 | for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3); |
81e97e0d | 77 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; |
78 | for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0; | |
32fab534 | 79 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0.2; |
80 | for (Int_t i=0;i<4;i++) { | |
81 | fDEDX[i] = 0.; | |
82 | fSDEDX[i] = 1e10; | |
83 | fNCDEDX[i] = 0; | |
84 | } | |
85 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
bfb57b6c | 86 | // for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE; |
87 | //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE; | |
88 | fClusterMap.ResetAllBits(kFALSE); | |
89 | fSharedMap.ResetAllBits(kFALSE); | |
90 | ||
81e97e0d | 91 | } |
32fab534 | 92 | |
2928bdf0 | 93 | AliTPCseed::AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner): |
32fab534 | 94 | AliTPCtrack(s), |
95 | fEsd(0x0), | |
2928bdf0 | 96 | fClusterOwner(clusterOwner), |
32fab534 | 97 | fRow(0), |
98 | fSector(-1), | |
99 | fRelativeSector(-1), | |
c07cb486 | 100 | fCurrentSigmaY2(-1), |
101 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 102 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
103 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 104 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
105 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 106 | fErrorY2(1e10), |
107 | fErrorZ2(1e10), | |
108 | fCurrentCluster(0x0), | |
109 | fCurrentClusterIndex1(-1), | |
110 | fInDead(kFALSE), | |
111 | fIsSeeding(kFALSE), | |
112 | fNoCluster(0), | |
113 | fSort(0), | |
114 | fBSigned(kFALSE), | |
115 | fSeedType(0), | |
116 | fSeed1(-1), | |
117 | fSeed2(-1), | |
118 | fMAngular(0), | |
19b00333 | 119 | fCircular(0), |
120 | fClusterMap(s.fClusterMap), | |
121 | fSharedMap(s.fSharedMap) | |
32fab534 | 122 | { |
81e97e0d | 123 | //--------------------- |
124 | // dummy copy constructor | |
125 | //------------------------- | |
2928bdf0 | 126 | for (Int_t i=0;i<160;i++) { |
127 | fClusterPointer[i]=0; | |
128 | if (fClusterOwner){ | |
129 | if (s.fClusterPointer[i]) | |
130 | fClusterPointer[i] = new AliTPCclusterMI(*(s.fClusterPointer[i])); | |
131 | }else{ | |
132 | fClusterPointer[i] = s.fClusterPointer[i]; | |
133 | } | |
134 | fTrackPoints[i] = s.fTrackPoints[i]; | |
135 | } | |
81e97e0d | 136 | for (Int_t i=0;i<160;i++) fIndex[i] = s.fIndex[i]; |
5c09947e | 137 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=s.fTPCr[i]; |
138 | for (Int_t i=0;i<4;i++) { | |
139 | fDEDX[i] = s.fDEDX[i]; | |
140 | fSDEDX[i] = s.fSDEDX[i]; | |
141 | fNCDEDX[i] = s.fNCDEDX[i]; | |
142 | } | |
143 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = s.fOverlapLabels[i]; | |
19b00333 | 144 | |
81e97e0d | 145 | } |
5c09947e | 146 | |
147 | ||
32fab534 | 148 | AliTPCseed::AliTPCseed(const AliTPCtrack &t): |
149 | AliTPCtrack(t), | |
150 | fEsd(0x0), | |
2928bdf0 | 151 | fClusterOwner(kFALSE), |
32fab534 | 152 | fRow(0), |
153 | fSector(-1), | |
154 | fRelativeSector(-1), | |
c07cb486 | 155 | fCurrentSigmaY2(-1), |
156 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 157 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
158 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 159 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
160 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 161 | fErrorY2(1e10), |
162 | fErrorZ2(1e10), | |
163 | fCurrentCluster(0x0), | |
164 | fCurrentClusterIndex1(-1), | |
165 | fInDead(kFALSE), | |
166 | fIsSeeding(kFALSE), | |
167 | fNoCluster(0), | |
168 | fSort(0), | |
169 | fBSigned(kFALSE), | |
170 | fSeedType(0), | |
171 | fSeed1(-1), | |
172 | fSeed2(-1), | |
173 | fMAngular(0), | |
19b00333 | 174 | fCircular(0), |
175 | fClusterMap(159), | |
176 | fSharedMap(159) | |
32fab534 | 177 | { |
81e97e0d | 178 | // |
32fab534 | 179 | // Constructor from AliTPCtrack |
180 | // | |
181 | fFirstPoint =0; | |
105b1b81 | 182 | for (Int_t i=0;i<5;i++) fTPCr[i]=0.2; |
81e97e0d | 183 | for (Int_t i=0;i<160;i++) { |
184 | fClusterPointer[i] = 0; | |
185 | Int_t index = t.GetClusterIndex(i); | |
186 | if (index>=-1){ | |
187 | SetClusterIndex2(i,index); | |
188 | } | |
189 | else{ | |
190 | SetClusterIndex2(i,-3); | |
191 | } | |
192 | } | |
32fab534 | 193 | for (Int_t i=0;i<4;i++) { |
194 | fDEDX[i] = 0.; | |
195 | fSDEDX[i] = 1e10; | |
196 | fNCDEDX[i] = 0; | |
197 | } | |
198 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
bfb57b6c | 199 | |
200 | //for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE; | |
201 | //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE; | |
202 | fClusterMap.ResetAllBits(kFALSE); | |
203 | fSharedMap.ResetAllBits(kFALSE); | |
204 | ||
81e97e0d | 205 | } |
206 | ||
6c94f330 | 207 | AliTPCseed::AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5], |
208 | const Double_t cc[15], Int_t index): | |
209 | AliTPCtrack(xr, alpha, xx, cc, index), | |
32fab534 | 210 | fEsd(0x0), |
2928bdf0 | 211 | fClusterOwner(kFALSE), |
32fab534 | 212 | fRow(0), |
213 | fSector(-1), | |
214 | fRelativeSector(-1), | |
c07cb486 | 215 | fCurrentSigmaY2(-1), |
216 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 217 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
218 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 219 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
220 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 221 | fErrorY2(1e10), |
222 | fErrorZ2(1e10), | |
223 | fCurrentCluster(0x0), | |
224 | fCurrentClusterIndex1(-1), | |
225 | fInDead(kFALSE), | |
226 | fIsSeeding(kFALSE), | |
227 | fNoCluster(0), | |
228 | fSort(0), | |
229 | fBSigned(kFALSE), | |
230 | fSeedType(0), | |
231 | fSeed1(-1), | |
232 | fSeed2(-1), | |
233 | fMAngular(0), | |
19b00333 | 234 | fCircular(0), |
235 | fClusterMap(159), | |
236 | fSharedMap(159) | |
32fab534 | 237 | { |
238 | // | |
239 | // Constructor | |
81e97e0d | 240 | // |
32fab534 | 241 | fFirstPoint =0; |
5c09947e | 242 | for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3); |
81e97e0d | 243 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; |
81e97e0d | 244 | for (Int_t i=0;i<5;i++) fTPCr[i]=0.2; |
32fab534 | 245 | for (Int_t i=0;i<4;i++) { |
246 | fDEDX[i] = 0.; | |
247 | fSDEDX[i] = 1e10; | |
248 | fNCDEDX[i] = 0; | |
249 | } | |
250 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
81e97e0d | 251 | } |
252 | ||
253 | AliTPCseed::~AliTPCseed(){ | |
254 | // | |
255 | // destructor | |
81e97e0d | 256 | fNoCluster =0; |
2928bdf0 | 257 | if (fClusterOwner){ |
258 | for (Int_t icluster=0; icluster<160; icluster++){ | |
259 | delete fClusterPointer[icluster]; | |
260 | } | |
261 | } | |
bfb57b6c | 262 | |
81e97e0d | 263 | } |
179c6296 | 264 | //_________________________________________________ |
316c6cd9 | 265 | AliTPCseed & AliTPCseed::operator=(const AliTPCseed ¶m) |
179c6296 | 266 | { |
267 | // | |
316c6cd9 | 268 | // assignment operator |
179c6296 | 269 | // |
316c6cd9 | 270 | if(this!=¶m){ |
271 | AliTPCtrack::operator=(param); | |
272 | fEsd =param.fEsd; | |
273 | for(Int_t i = 0;i<160;++i)fClusterPointer[i] = param.fClusterPointer[i]; // this is not allocated by AliTPCSeed | |
274 | fClusterOwner = param.fClusterOwner; | |
275 | // leave out fPoint, they are also not copied in the copy ctor... | |
276 | // but deleted in the dtor... strange... | |
316c6cd9 | 277 | fRow = param.fRow; |
278 | fSector = param.fSector; | |
279 | fRelativeSector = param.fRelativeSector; | |
280 | fCurrentSigmaY2 = param.fCurrentSigmaY2; | |
281 | fCurrentSigmaZ2 = param.fCurrentSigmaZ2; | |
282 | fErrorY2 = param.fErrorY2; | |
283 | fErrorZ2 = param.fErrorZ2; | |
284 | fCurrentCluster = param.fCurrentCluster; // this is not allocated by AliTPCSeed | |
285 | fCurrentClusterIndex1 = param.fCurrentClusterIndex1; | |
286 | fInDead = param.fInDead; | |
287 | fIsSeeding = param.fIsSeeding; | |
288 | fNoCluster = param.fNoCluster; | |
289 | fSort = param.fSort; | |
290 | fBSigned = param.fBSigned; | |
291 | for(Int_t i = 0;i<4;++i){ | |
292 | fDEDX[i] = param.fDEDX[i]; | |
293 | fSDEDX[i] = param.fSDEDX[i]; | |
294 | fNCDEDX[i] = param.fNCDEDX[i]; | |
295 | } | |
296 | for(Int_t i = 0;i<AliPID::kSPECIES;++i)fTPCr[i] = param.fTPCr[i]; | |
297 | ||
298 | fSeedType = param.fSeedType; | |
299 | fSeed1 = param.fSeed1; | |
300 | fSeed2 = param.fSeed2; | |
301 | for(Int_t i = 0;i<12;++i)fOverlapLabels[i] = param.fOverlapLabels[i]; | |
302 | fMAngular = param.fMAngular; | |
303 | fCircular = param.fCircular; | |
304 | for(int i = 0;i<160;++i)fTrackPoints[i] = param.fTrackPoints[i]; | |
305 | fClusterMap = param.fClusterMap; | |
306 | fSharedMap = param.fSharedMap; | |
307 | } | |
179c6296 | 308 | return (*this); |
309 | } | |
310 | //____________________________________________________ | |
81e97e0d | 311 | AliTPCTrackerPoint * AliTPCseed::GetTrackPoint(Int_t i) |
312 | { | |
313 | // | |
314 | // | |
315 | return &fTrackPoints[i]; | |
316 | } | |
317 | ||
81e97e0d | 318 | |
319 | ||
320 | Double_t AliTPCseed::GetDensityFirst(Int_t n) | |
321 | { | |
322 | // | |
323 | // | |
324 | // return cluster for n rows bellow first point | |
325 | Int_t nfoundable = 1; | |
326 | Int_t nfound = 1; | |
327 | for (Int_t i=fLastPoint-1;i>0&&nfoundable<n; i--){ | |
328 | Int_t index = GetClusterIndex2(i); | |
329 | if (index!=-1) nfoundable++; | |
330 | if (index>0) nfound++; | |
331 | } | |
332 | if (nfoundable<n) return 0; | |
333 | return Double_t(nfound)/Double_t(nfoundable); | |
334 | ||
335 | } | |
336 | ||
337 | ||
338 | void AliTPCseed::GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2) | |
339 | { | |
340 | // get cluster stat. on given region | |
341 | // | |
342 | found = 0; | |
343 | foundable = 0; | |
344 | shared =0; | |
345 | for (Int_t i=first;i<last; i++){ | |
346 | Int_t index = GetClusterIndex2(i); | |
347 | if (index!=-1) foundable++; | |
6d493ea0 | 348 | if (index&0x8000) continue; |
81e97e0d | 349 | if (fClusterPointer[i]) { |
350 | found++; | |
351 | } | |
352 | else | |
353 | continue; | |
354 | ||
355 | if (fClusterPointer[i]->IsUsed(10)) { | |
356 | shared++; | |
357 | continue; | |
358 | } | |
359 | if (!plus2) continue; //take also neighborhoud | |
360 | // | |
361 | if ( (i>0) && fClusterPointer[i-1]){ | |
362 | if (fClusterPointer[i-1]->IsUsed(10)) { | |
363 | shared++; | |
364 | continue; | |
365 | } | |
366 | } | |
367 | if ( fClusterPointer[i+1]){ | |
368 | if (fClusterPointer[i+1]->IsUsed(10)) { | |
369 | shared++; | |
370 | continue; | |
371 | } | |
372 | } | |
373 | ||
374 | } | |
375 | //if (shared>found){ | |
376 | //Error("AliTPCseed::GetClusterStatistic","problem\n"); | |
377 | //} | |
378 | } | |
379 | ||
380 | ||
381 | ||
382 | ||
383 | ||
384 | void AliTPCseed::Reset(Bool_t all) | |
385 | { | |
386 | // | |
387 | // | |
388 | SetNumberOfClusters(0); | |
389 | fNFoundable = 0; | |
390 | SetChi2(0); | |
6c94f330 | 391 | ResetCovariance(10.); |
81e97e0d | 392 | /* |
393 | if (fTrackPoints){ | |
394 | for (Int_t i=0;i<8;i++){ | |
395 | delete [] fTrackPoints[i]; | |
396 | } | |
397 | delete fTrackPoints; | |
398 | fTrackPoints =0; | |
399 | } | |
400 | */ | |
401 | ||
402 | if (all){ | |
403 | for (Int_t i=0;i<200;i++) SetClusterIndex2(i,-3); | |
404 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; | |
405 | } | |
406 | ||
407 | } | |
408 | ||
409 | ||
410 | void AliTPCseed::Modify(Double_t factor) | |
411 | { | |
412 | ||
413 | //------------------------------------------------------------------ | |
414 | //This function makes a track forget its history :) | |
415 | //------------------------------------------------------------------ | |
416 | if (factor<=0) { | |
6c94f330 | 417 | ResetCovariance(10.); |
81e97e0d | 418 | return; |
419 | } | |
6c94f330 | 420 | ResetCovariance(factor); |
421 | ||
81e97e0d | 422 | SetNumberOfClusters(0); |
423 | fNFoundable =0; | |
424 | SetChi2(0); | |
425 | fRemoval = 0; | |
426 | fCurrentSigmaY2 = 0.000005; | |
427 | fCurrentSigmaZ2 = 0.000005; | |
428 | fNoCluster = 0; | |
429 | //fFirstPoint = 160; | |
430 | //fLastPoint = 0; | |
431 | } | |
432 | ||
433 | ||
434 | ||
435 | ||
436 | Int_t AliTPCseed::GetProlongation(Double_t xk, Double_t &y, Double_t & z) const | |
437 | { | |
438 | //----------------------------------------------------------------- | |
439 | // This function find proloncation of a track to a reference plane x=xk. | |
440 | // doesn't change internal state of the track | |
441 | //----------------------------------------------------------------- | |
442 | ||
6c94f330 | 443 | Double_t x1=GetX(), x2=x1+(xk-x1), dx=x2-x1; |
81e97e0d | 444 | |
6c94f330 | 445 | if (TMath::Abs(GetSnp()+GetC()*dx) >= AliTPCReconstructor::GetMaxSnpTrack()) { |
81e97e0d | 446 | return 0; |
447 | } | |
448 | ||
449 | // Double_t y1=fP0, z1=fP1; | |
60e55aee | 450 | Double_t c1=GetSnp(), r1=sqrt((1.-c1)*(1.+c1)); |
451 | Double_t c2=c1 + GetC()*dx, r2=sqrt((1.-c2)*(1.+c2)); | |
81e97e0d | 452 | |
6c94f330 | 453 | y = GetY(); |
454 | z = GetZ(); | |
81e97e0d | 455 | //y += dx*(c1+c2)/(r1+r2); |
456 | //z += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3; | |
457 | ||
458 | Double_t dy = dx*(c1+c2)/(r1+r2); | |
459 | Double_t dz = 0; | |
460 | // | |
6c94f330 | 461 | Double_t delta = GetC()*dx*(c1+c2)/(c1*r2 + c2*r1); |
81e97e0d | 462 | /* |
463 | if (TMath::Abs(delta)>0.0001){ | |
464 | dz = fP3*TMath::ASin(delta)/fP4; | |
465 | }else{ | |
466 | dz = dx*fP3*(c1+c2)/(c1*r2 + c2*r1); | |
467 | } | |
468 | */ | |
469 | // dz = fP3*AliTPCFastMath::FastAsin(delta)/fP4; | |
6c94f330 | 470 | dz = GetTgl()*TMath::ASin(delta)/GetC(); |
81e97e0d | 471 | // |
472 | y+=dy; | |
473 | z+=dz; | |
474 | ||
475 | ||
476 | return 1; | |
477 | } | |
478 | ||
479 | ||
480 | //_____________________________________________________________________________ | |
af32720d | 481 | Double_t AliTPCseed::GetPredictedChi2(const AliCluster *c) const |
81e97e0d | 482 | { |
483 | //----------------------------------------------------------------- | |
484 | // This function calculates a predicted chi2 increment. | |
485 | //----------------------------------------------------------------- | |
6c94f330 | 486 | Double_t p[2]={c->GetY(), c->GetZ()}; |
487 | Double_t cov[3]={fErrorY2, 0., fErrorZ2}; | |
9c7b8249 | 488 | |
489 | Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX(); | |
490 | if (TMath::Abs(dx)>0){ | |
491 | Float_t ty = TMath::Tan(TMath::ASin(GetSnp())); | |
492 | Float_t dy = dx*ty; | |
493 | Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl(); | |
494 | p[0] = c->GetY()-dy; | |
495 | p[1] = c->GetZ()-dz; | |
496 | } | |
6c94f330 | 497 | return AliExternalTrackParam::GetPredictedChi2(p,cov); |
81e97e0d | 498 | } |
499 | ||
81e97e0d | 500 | //_________________________________________________________________________________________ |
501 | ||
502 | ||
503 | Int_t AliTPCseed::Compare(const TObject *o) const { | |
504 | //----------------------------------------------------------------- | |
505 | // This function compares tracks according to the sector - for given sector according z | |
506 | //----------------------------------------------------------------- | |
507 | AliTPCseed *t=(AliTPCseed*)o; | |
6c94f330 | 508 | |
81e97e0d | 509 | if (fSort == 0){ |
510 | if (t->fRelativeSector>fRelativeSector) return -1; | |
511 | if (t->fRelativeSector<fRelativeSector) return 1; | |
512 | Double_t z2 = t->GetZ(); | |
513 | Double_t z1 = GetZ(); | |
514 | if (z2>z1) return 1; | |
515 | if (z2<z1) return -1; | |
516 | return 0; | |
517 | } | |
518 | else { | |
519 | Float_t f2 =1; | |
6c23ffed | 520 | f2 = 1-20*TMath::Sqrt(t->GetSigma1Pt2())/(t->OneOverPt()+0.0066); |
81e97e0d | 521 | if (t->fBConstrain) f2=1.2; |
522 | ||
523 | Float_t f1 =1; | |
6c23ffed | 524 | f1 = 1-20*TMath::Sqrt(GetSigma1Pt2())/(OneOverPt()+0.0066); |
81e97e0d | 525 | |
526 | if (fBConstrain) f1=1.2; | |
527 | ||
528 | if (t->GetNumberOfClusters()*f2 <GetNumberOfClusters()*f1) return -1; | |
529 | else return +1; | |
530 | } | |
531 | } | |
532 | ||
533 | ||
534 | ||
535 | ||
536 | //_____________________________________________________________________________ | |
70e20dcf | 537 | Bool_t AliTPCseed::Update(const AliCluster *c, Double_t chisq, Int_t index) |
6c94f330 | 538 | { |
81e97e0d | 539 | //----------------------------------------------------------------- |
540 | // This function associates a cluster with this track. | |
541 | //----------------------------------------------------------------- | |
81e97e0d | 542 | Int_t n=GetNumberOfClusters(); |
70e20dcf | 543 | Int_t idx=GetClusterIndex(n); // save the current cluster index |
544 | ||
545 | AliCluster cl(*c); cl.SetSigmaY2(fErrorY2); cl.SetSigmaZ2(fErrorZ2); | |
ca521f6c | 546 | Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX(); |
547 | if (TMath::Abs(dx)>0){ | |
548 | Float_t ty = TMath::Tan(TMath::ASin(GetSnp())); | |
549 | Float_t dy = dx*ty; | |
550 | Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl(); | |
551 | cl.SetY(c->GetY()-dy); | |
552 | cl.SetZ(c->GetZ()-dz); | |
553 | } | |
554 | ||
70e20dcf | 555 | if (!AliTPCtrack::Update(&cl,chisq,index)) return kFALSE; |
e0e13b88 | 556 | |
557 | if (fCMeanSigmaY2p30<0){ | |
558 | fCMeanSigmaY2p30= c->GetSigmaY2(); //! current mean sigma Y2 - mean30% | |
c07cb486 | 559 | fCMeanSigmaZ2p30= c->GetSigmaZ2(); //! current mean sigma Z2 - mean30% |
560 | fCMeanSigmaY2p30R = 1; //! current mean sigma Y2 - mean5% | |
561 | fCMeanSigmaZ2p30R = 1; //! current mean sigma Z2 - mean5% | |
e0e13b88 | 562 | } |
563 | // | |
564 | fCMeanSigmaY2p30= 0.70*fCMeanSigmaY2p30 +0.30*c->GetSigmaY2(); | |
c07cb486 | 565 | fCMeanSigmaZ2p30= 0.70*fCMeanSigmaZ2p30 +0.30*c->GetSigmaZ2(); |
566 | if (fCurrentSigmaY2>0){ | |
567 | fCMeanSigmaY2p30R = 0.7*fCMeanSigmaY2p30R +0.3*c->GetSigmaY2()/fCurrentSigmaY2; | |
568 | fCMeanSigmaZ2p30R = 0.7*fCMeanSigmaZ2p30R +0.3*c->GetSigmaZ2()/fCurrentSigmaZ2; | |
569 | } | |
e0e13b88 | 570 | |
81e97e0d | 571 | |
70e20dcf | 572 | SetClusterIndex(n,idx); // restore the current cluster index |
6c94f330 | 573 | return kTRUE; |
81e97e0d | 574 | } |
575 | ||
576 | ||
577 | ||
578 | //_____________________________________________________________________________ | |
dc5cd41c | 579 | Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t /* onlyused */) { |
81e97e0d | 580 | //----------------------------------------------------------------- |
581 | // This funtion calculates dE/dX within the "low" and "up" cuts. | |
582 | //----------------------------------------------------------------- | |
2cadb5d1 | 583 | // CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal) |
83afd539 | 584 | AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters(); |
44a6a09e | 585 | |
83afd539 | 586 | Int_t row0 = param->GetNRowLow(); |
587 | Int_t row1 = row0+param->GetNRowUp1(); | |
588 | Int_t row2 = row1+param->GetNRowUp2(); | |
44a6a09e | 589 | const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam(); |
590 | Int_t useTot = 0; | |
591 | if (recoParam) useTot = (recoParam->GetUseTotCharge())? 0:1; | |
83afd539 | 592 | // |
593 | // | |
594 | // | |
2cadb5d1 | 595 | fDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 0); |
596 | fDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 0); | |
597 | fDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 0); | |
598 | fDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 0); | |
83afd539 | 599 | // |
2cadb5d1 | 600 | fSDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 1); |
601 | fSDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 1); | |
602 | fSDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 1); | |
603 | fSDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 1); | |
83afd539 | 604 | // |
2cadb5d1 | 605 | fNCDEDX[0] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 2)); |
606 | fNCDEDX[1] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,0 ,row0, 2)); | |
607 | fNCDEDX[2] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row0,row1, 2)); | |
608 | fNCDEDX[3] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row1,row2, 2)); | |
81e97e0d | 609 | |
83afd539 | 610 | SetdEdx(fDEDX[0]); |
611 | return fDEDX[0]; | |
81e97e0d | 612 | |
ba5e52fb | 613 | // return CookdEdxNorm(low,up,0,i1,i2,1,0,2); |
4cc7ba77 | 614 | |
615 | ||
ba5e52fb | 616 | // Float_t amp[200]; |
617 | // Float_t angular[200]; | |
618 | // Float_t weight[200]; | |
619 | // Int_t index[200]; | |
620 | // //Int_t nc = 0; | |
621 | // Float_t meanlog = 100.; | |
622 | ||
623 | // Float_t mean[4] = {0,0,0,0}; | |
624 | // Float_t sigma[4] = {1000,1000,1000,1000}; | |
625 | // Int_t nc[4] = {0,0,0,0}; | |
626 | // Float_t norm[4] = {1000,1000,1000,1000}; | |
627 | // // | |
628 | // // | |
629 | // fNShared =0; | |
630 | ||
631 | // Float_t gainGG = 1; | |
632 | // if (AliTPCcalibDB::Instance()->GetParameters()){ | |
633 | // gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000.; //relative gas gain | |
634 | // } | |
635 | ||
636 | ||
637 | // for (Int_t of =0; of<4; of++){ | |
638 | // for (Int_t i=of+i1;i<i2;i+=4) | |
639 | // { | |
640 | // Int_t clindex = fIndex[i]; | |
641 | // if (clindex<0||clindex&0x8000) continue; | |
642 | ||
643 | // //AliTPCTrackPoint * point = (AliTPCTrackPoint *) arr.At(i); | |
644 | // AliTPCTrackerPoint * point = GetTrackPoint(i); | |
645 | // //AliTPCTrackerPoint * pointm = GetTrackPoint(i-1); | |
646 | // //AliTPCTrackerPoint * pointp = 0; | |
647 | // //if (i<159) pointp = GetTrackPoint(i+1); | |
648 | ||
649 | // if (point==0) continue; | |
650 | // AliTPCclusterMI * cl = fClusterPointer[i]; | |
651 | // if (cl==0) continue; | |
652 | // if (onlyused && (!cl->IsUsed(10))) continue; | |
653 | // if (cl->IsUsed(11)) { | |
654 | // fNShared++; | |
655 | // continue; | |
656 | // } | |
657 | // Int_t type = cl->GetType(); | |
658 | // //if (point->fIsShared){ | |
659 | // // fNShared++; | |
660 | // // continue; | |
661 | // //} | |
662 | // //if (pointm) | |
663 | // // if (pointm->fIsShared) continue; | |
664 | // //if (pointp) | |
665 | // // if (pointp->fIsShared) continue; | |
666 | ||
667 | // if (type<0) continue; | |
668 | // //if (type>10) continue; | |
669 | // //if (point->GetErrY()==0) continue; | |
670 | // //if (point->GetErrZ()==0) continue; | |
671 | ||
672 | // //Float_t ddy = (point->GetY()-cl->GetY())/point->GetErrY(); | |
673 | // //Float_t ddz = (point->GetZ()-cl->GetZ())/point->GetErrZ(); | |
674 | // //if ((ddy*ddy+ddz*ddz)>10) continue; | |
675 | ||
676 | ||
677 | // // if (point->GetCPoint().GetMax()<5) continue; | |
678 | // if (cl->GetMax()<5) continue; | |
679 | // Float_t angley = point->GetAngleY(); | |
680 | // Float_t anglez = point->GetAngleZ(); | |
681 | ||
682 | // Float_t rsigmay2 = point->GetSigmaY(); | |
683 | // Float_t rsigmaz2 = point->GetSigmaZ(); | |
684 | // /* | |
685 | // Float_t ns = 1.; | |
686 | // if (pointm){ | |
687 | // rsigmay += pointm->GetTPoint().GetSigmaY(); | |
688 | // rsigmaz += pointm->GetTPoint().GetSigmaZ(); | |
689 | // ns+=1.; | |
690 | // } | |
691 | // if (pointp){ | |
692 | // rsigmay += pointp->GetTPoint().GetSigmaY(); | |
693 | // rsigmaz += pointp->GetTPoint().GetSigmaZ(); | |
694 | // ns+=1.; | |
695 | // } | |
696 | // rsigmay/=ns; | |
697 | // rsigmaz/=ns; | |
698 | // */ | |
699 | ||
700 | // Float_t rsigma = TMath::Sqrt(rsigmay2*rsigmaz2); | |
701 | ||
702 | // Float_t ampc = 0; // normalization to the number of electrons | |
703 | // if (i>64){ | |
704 | // // ampc = 1.*point->GetCPoint().GetMax(); | |
705 | // ampc = 1.*cl->GetMax(); | |
706 | // //ampc = 1.*point->GetCPoint().GetQ(); | |
707 | // // AliTPCClusterPoint & p = point->GetCPoint(); | |
708 | // // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.6)) - TMath::Abs(p.GetY()/0.6)+0.5); | |
709 | // // Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566; | |
710 | // //Float_t dz = | |
711 | // // TMath::Abs( Int_t(iz) - iz + 0.5); | |
712 | // //ampc *= 1.15*(1-0.3*dy); | |
713 | // //ampc *= 1.15*(1-0.3*dz); | |
714 | // // Float_t zfactor = (AliTPCReconstructor::GetCtgRange()-0.0004*TMath::Abs(point->GetCPoint().GetZ())); | |
715 | // //ampc *=zfactor; | |
716 | // } | |
717 | // else{ | |
718 | // //ampc = 1.0*point->GetCPoint().GetMax(); | |
719 | // ampc = 1.0*cl->GetMax(); | |
720 | // //ampc = 1.0*point->GetCPoint().GetQ(); | |
721 | // //AliTPCClusterPoint & p = point->GetCPoint(); | |
722 | // // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.4)) - TMath::Abs(p.GetY()/0.4)+0.5); | |
723 | // //Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566; | |
724 | // //Float_t dz = | |
725 | // // TMath::Abs( Int_t(iz) - iz + 0.5); | |
726 | ||
727 | // //ampc *= 1.15*(1-0.3*dy); | |
728 | // //ampc *= 1.15*(1-0.3*dz); | |
729 | // // Float_t zfactor = (1.02-0.000*TMath::Abs(point->GetCPoint().GetZ())); | |
730 | // //ampc *=zfactor; | |
731 | ||
732 | // } | |
733 | // ampc *= 2.0; // put mean value to channel 50 | |
734 | // //ampc *= 0.58; // put mean value to channel 50 | |
735 | // Float_t w = 1.; | |
736 | // // if (type>0) w = 1./(type/2.-0.5); | |
737 | // // Float_t z = TMath::Abs(cl->GetZ()); | |
738 | // if (i<64) { | |
739 | // ampc /= 0.6; | |
740 | // //ampc /= (1+0.0008*z); | |
741 | // } else | |
742 | // if (i>128){ | |
743 | // ampc /=1.5; | |
744 | // //ampc /= (1+0.0008*z); | |
745 | // }else{ | |
746 | // //ampc /= (1+0.0008*z); | |
747 | // } | |
81e97e0d | 748 | |
ba5e52fb | 749 | // if (type<0) { //amp at the border - lower weight |
750 | // // w*= 2.; | |
81e97e0d | 751 | |
ba5e52fb | 752 | // continue; |
753 | // } | |
754 | // if (rsigma>1.5) ampc/=1.3; // if big backround | |
755 | // amp[nc[of]] = ampc; | |
756 | // amp[nc[of]] /=gainGG; | |
757 | // angular[nc[of]] = TMath::Sqrt(1.+angley*angley+anglez*anglez); | |
758 | // weight[nc[of]] = w; | |
759 | // nc[of]++; | |
760 | // } | |
81e97e0d | 761 | |
ba5e52fb | 762 | // TMath::Sort(nc[of],amp,index,kFALSE); |
763 | // Float_t sumamp=0; | |
764 | // Float_t sumamp2=0; | |
765 | // Float_t sumw=0; | |
766 | // //meanlog = amp[index[Int_t(nc[of]*0.33)]]; | |
767 | // meanlog = 50; | |
768 | // for (Int_t i=int(nc[of]*low+0.5);i<int(nc[of]*up+0.5);i++){ | |
769 | // Float_t ampl = amp[index[i]]/angular[index[i]]; | |
770 | // ampl = meanlog*TMath::Log(1.+ampl/meanlog); | |
771 | // // | |
772 | // sumw += weight[index[i]]; | |
773 | // sumamp += weight[index[i]]*ampl; | |
774 | // sumamp2 += weight[index[i]]*ampl*ampl; | |
775 | // norm[of] += angular[index[i]]*weight[index[i]]; | |
776 | // } | |
777 | // if (sumw<1){ | |
778 | // SetdEdx(0); | |
779 | // } | |
780 | // else { | |
781 | // norm[of] /= sumw; | |
782 | // mean[of] = sumamp/sumw; | |
783 | // sigma[of] = sumamp2/sumw-mean[of]*mean[of]; | |
784 | // if (sigma[of]>0.1) | |
785 | // sigma[of] = TMath::Sqrt(sigma[of]); | |
786 | // else | |
787 | // sigma[of] = 1000; | |
81e97e0d | 788 | |
ba5e52fb | 789 | // mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog; |
790 | // //mean *=(1-0.02*(sigma/(mean*0.17)-1.)); | |
791 | // //mean *=(1-0.1*(norm-1.)); | |
792 | // } | |
793 | // } | |
794 | ||
795 | // Float_t dedx =0; | |
796 | // fSdEdx =0; | |
797 | // fMAngular =0; | |
798 | // // mean[0]*= (1-0.05*(sigma[0]/(0.01+mean[1]*0.18)-1)); | |
799 | // // mean[1]*= (1-0.05*(sigma[1]/(0.01+mean[0]*0.18)-1)); | |
81e97e0d | 800 | |
801 | ||
ba5e52fb | 802 | // // dedx = (mean[0]* TMath::Sqrt((1.+nc[0]))+ mean[1]* TMath::Sqrt((1.+nc[1])) )/ |
803 | // // ( TMath::Sqrt((1.+nc[0]))+TMath::Sqrt((1.+nc[1]))); | |
804 | ||
805 | // Int_t norm2 = 0; | |
806 | // Int_t norm3 = 0; | |
807 | // for (Int_t i =0;i<4;i++){ | |
808 | // if (nc[i]>2&&nc[i]<1000){ | |
809 | // dedx += mean[i] *nc[i]; | |
810 | // fSdEdx += sigma[i]*(nc[i]-2); | |
811 | // fMAngular += norm[i] *nc[i]; | |
812 | // norm2 += nc[i]; | |
813 | // norm3 += nc[i]-2; | |
814 | // } | |
815 | // fDEDX[i] = mean[i]; | |
816 | // fSDEDX[i] = sigma[i]; | |
817 | // fNCDEDX[i]= nc[i]; | |
818 | // } | |
819 | ||
820 | // if (norm3>0){ | |
821 | // dedx /=norm2; | |
822 | // fSdEdx /=norm3; | |
823 | // fMAngular/=norm2; | |
824 | // } | |
825 | // else{ | |
826 | // SetdEdx(0); | |
827 | // return 0; | |
828 | // } | |
829 | // // Float_t dedx1 =dedx; | |
830 | // /* | |
831 | // dedx =0; | |
832 | // for (Int_t i =0;i<4;i++){ | |
833 | // if (nc[i]>2&&nc[i]<1000){ | |
834 | // mean[i] = mean[i]*(1-0.12*(sigma[i]/(fSdEdx)-1.)); | |
835 | // dedx += mean[i] *nc[i]; | |
836 | // } | |
837 | // fDEDX[i] = mean[i]; | |
838 | // } | |
839 | // dedx /= norm2; | |
840 | // */ | |
81e97e0d | 841 | |
842 | ||
ba5e52fb | 843 | // SetdEdx(dedx); |
844 | // return dedx; | |
81e97e0d | 845 | } |
81e97e0d | 846 | |
847 | void AliTPCseed::CookPID() | |
848 | { | |
849 | // | |
850 | // cook PID information according dEdx | |
851 | // | |
852 | Double_t fRange = 10.; | |
853 | Double_t fRes = 0.1; | |
854 | Double_t fMIP = 47.; | |
855 | // | |
856 | Int_t ns=AliPID::kSPECIES; | |
857 | Double_t sumr =0; | |
858 | for (Int_t j=0; j<ns; j++) { | |
859 | Double_t mass=AliPID::ParticleMass(j); | |
6c94f330 | 860 | Double_t mom=GetP(); |
81e97e0d | 861 | Double_t dedx=fdEdx/fMIP; |
5731b051 | 862 | Double_t bethe=AliMathBase::BetheBlochAleph(mom/mass); |
81e97e0d | 863 | Double_t sigma=fRes*bethe; |
864 | if (sigma>0.001){ | |
865 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { | |
866 | fTPCr[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; | |
867 | sumr+=fTPCr[j]; | |
868 | continue; | |
869 | } | |
870 | fTPCr[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; | |
871 | sumr+=fTPCr[j]; | |
872 | } | |
873 | else{ | |
874 | fTPCr[j]=1.; | |
875 | sumr+=fTPCr[j]; | |
876 | } | |
877 | } | |
878 | for (Int_t j=0; j<ns; j++) { | |
879 | fTPCr[j]/=sumr; //normalize | |
880 | } | |
881 | } | |
882 | ||
6c94f330 | 883 | Double_t AliTPCseed::GetYat(Double_t xk) const { |
884 | //----------------------------------------------------------------- | |
885 | // This function calculates the Y-coordinate of a track at the plane x=xk. | |
886 | //----------------------------------------------------------------- | |
887 | if (TMath::Abs(GetSnp())>AliTPCReconstructor::GetMaxSnpTrack()) return 0.; //patch 01 jan 06 | |
60e55aee | 888 | Double_t c1=GetSnp(), r1=TMath::Sqrt((1.-c1)*(1.+c1)); |
6c94f330 | 889 | Double_t c2=c1+GetC()*(xk-GetX()); |
890 | if (TMath::Abs(c2)>AliTPCReconstructor::GetMaxSnpTrack()) return 0; | |
60e55aee | 891 | Double_t r2=TMath::Sqrt((1.-c2)*(1.+c2)); |
6c94f330 | 892 | return GetY() + (xk-GetX())*(c1+c2)/(r1+r2); |
893 | } | |
894 | ||
19b00333 | 895 | void AliTPCseed::SetClusterMapBit(int ibit, Bool_t state) |
896 | { | |
897 | fClusterMap[ibit] = state; | |
898 | } | |
899 | Bool_t AliTPCseed::GetClusterMapBit(int ibit) | |
900 | { | |
901 | return fClusterMap[ibit]; | |
902 | } | |
903 | void AliTPCseed::SetSharedMapBit(int ibit, Bool_t state) | |
904 | { | |
905 | fSharedMap[ibit] = state; | |
906 | } | |
907 | Bool_t AliTPCseed::GetSharedMapBit(int ibit) | |
908 | { | |
909 | return fSharedMap[ibit]; | |
910 | } | |
eb02f63a | 911 | |
912 | ||
0a65832b | 913 | |
914 | ||
915 | ||
8a92e133 | 916 | Float_t AliTPCseed::CookdEdxNorm(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Bool_t shapeNorm,Int_t posNorm, Int_t padNorm, Int_t returnVal){ |
0a65832b | 917 | |
918 | // | |
919 | // calculates dedx using the cluster | |
920 | // low - up specify trunc mean range - default form 0-0.7 | |
8076baa0 | 921 | // type - 1 - max charge or 0- total charge in cluster |
922 | // //2- max no corr 3- total+ correction | |
0a65832b | 923 | // i1-i2 - the pad-row range used for calculation |
ba5e52fb | 924 | // shapeNorm - kTRUE -taken from OCDB |
925 | // | |
926 | // posNorm - usage of pos normalization | |
83afd539 | 927 | // padNorm - pad type normalization |
928 | // returnVal - 0 return mean | |
929 | // - 1 return RMS | |
930 | // - 2 return number of clusters | |
931 | // | |
0a65832b | 932 | // normalization parametrization taken from AliTPCClusterParam |
933 | // | |
ba5e52fb | 934 | AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam(); |
935 | AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters(); | |
936 | if (!parcl) return 0; | |
937 | if (!param) return 0; | |
83afd539 | 938 | Int_t row0 = param->GetNRowLow(); |
939 | Int_t row1 = row0+param->GetNRowUp1(); | |
940 | ||
0a65832b | 941 | Float_t amp[160]; |
942 | Int_t indexes[160]; | |
943 | Int_t ncl=0; | |
944 | // | |
945 | // | |
ba5e52fb | 946 | Float_t gainGG = 1; // gas gain factor -always enabled |
947 | Float_t gainPad = 1; // gain map - used always | |
83afd539 | 948 | Float_t corrShape = 1; // correction due angular effect, diffusion and electron attachment |
ba5e52fb | 949 | Float_t corrPos = 1; // local position correction - if posNorm enabled |
950 | Float_t corrPadType = 1; // pad type correction - if padNorm enabled | |
951 | Float_t corrNorm = 1; // normalization factor - set Q to channel 50 | |
952 | // | |
953 | // | |
954 | // | |
4cc7ba77 | 955 | if (AliTPCcalibDB::Instance()->GetParameters()){ |
ba5e52fb | 956 | gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain |
4cc7ba77 | 957 | } |
958 | ||
0a65832b | 959 | const Float_t ktany = TMath::Tan(TMath::DegToRad()*10); |
4cc7ba77 | 960 | const Float_t kedgey =3.; |
0a65832b | 961 | // |
7cd8ac3f | 962 | // |
0a65832b | 963 | for (Int_t irow=i1; irow<i2; irow++){ |
964 | AliTPCclusterMI* cluster = GetClusterPointer(irow); | |
965 | if (!cluster) continue; | |
966 | if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster | |
8076baa0 | 967 | Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ(); |
ba5e52fb | 968 | Int_t ipad= 0; |
83afd539 | 969 | if (irow>=row0) ipad=1; |
970 | if (irow>=row1) ipad=2; | |
ba5e52fb | 971 | // |
972 | // | |
973 | // | |
974 | AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor(); | |
975 | if (gainMap) { | |
976 | // | |
977 | // Get gainPad - pad by pad calibration | |
978 | // | |
d6920632 | 979 | Float_t factor = 1; |
980 | AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector()); | |
83afd539 | 981 | if (irow < row0) { // IROC |
ba5e52fb | 982 | factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad())); |
d6920632 | 983 | } else { // OROC |
83afd539 | 984 | factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad())); |
d6920632 | 985 | } |
ba5e52fb | 986 | if (factor>0.5) gainPad=factor; |
7cd8ac3f | 987 | } |
ba5e52fb | 988 | // |
989 | //do position and angular normalization | |
990 | // | |
991 | if (shapeNorm){ | |
992 | if (type<=1){ | |
993 | // | |
994 | AliTPCTrackerPoint * point = GetTrackPoint(irow); | |
995 | Float_t ty = TMath::Abs(point->GetAngleY()); | |
83afd539 | 996 | Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty)); |
ba5e52fb | 997 | |
998 | Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.; | |
999 | corrShape = parcl->Qnorm(ipad,type,dr,ty,tz); | |
1000 | } | |
0a65832b | 1001 | } |
ba5e52fb | 1002 | |
8a92e133 | 1003 | if (posNorm>0){ |
8e1dcdda | 1004 | // |
ba5e52fb | 1005 | // Do position normalization - relative distance to |
1006 | // center of pad- time bin | |
1007 | // Work in progress | |
022a2383 | 1008 | // corrPos = parcl->QnormPos(ipad,type, cluster->GetPad(), |
1009 | // cluster->GetTimeBin(), cluster->GetZ(), | |
1010 | // cluster->GetSigmaY2(),cluster->GetSigmaZ2(), | |
1011 | // cluster->GetMax(),cluster->GetQ()); | |
8a92e133 | 1012 | // scaled response function |
1013 | Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector()); | |
1014 | Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth(); | |
1015 | // | |
1016 | ||
022a2383 | 1017 | AliTPCTrackerPoint * point = GetTrackPoint(irow); |
1018 | Float_t ty = TMath::Abs(point->GetAngleY()); | |
1019 | Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty)); | |
1020 | ||
1021 | if (type==1) corrPos = | |
1022 | parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
8a92e133 | 1023 | cluster->GetTimeBin(),ty,tz,yres0,zres0,0.4); |
022a2383 | 1024 | if (type==0) corrPos = |
1025 | parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
8a92e133 | 1026 | cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,0.4); |
1027 | if (posNorm==3){ | |
1028 | Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.; | |
1029 | Double_t signtgl = (cluster->GetZ()*point->GetAngleZ()>0)? 1:-1; | |
1030 | Double_t p2 = TMath::Abs(TMath::Sin(TMath::ATan(ty))); | |
1031 | Float_t corrHis = parcl->QnormHis(ipad,type,dr,p2,TMath::Abs(point->GetAngleZ())*signtgl); | |
1032 | if (corrHis>0) corrPos*=corrHis; | |
1033 | } | |
1034 | ||
8e1dcdda | 1035 | } |
1036 | ||
ba5e52fb | 1037 | if (padNorm==1){ |
1038 | //taken from OCDB | |
798017c7 | 1039 | if (type==0 && parcl->QpadTnorm()) corrPadType = (*parcl->QpadTnorm())[ipad]; |
1040 | if (type==1 && parcl->QpadMnorm()) corrPadType = (*parcl->QpadMnorm())[ipad]; | |
022a2383 | 1041 | |
2fc9608f | 1042 | } |
ba5e52fb | 1043 | if (padNorm==2){ |
1044 | corrPadType =param->GetPadPitchLength(cluster->GetDetector(),cluster->GetRow()); | |
1045 | //use hardwired - temp fix | |
1046 | if (type==0) corrNorm=3.; | |
1047 | if (type==1) corrNorm=1.; | |
1048 | } | |
1049 | // | |
1050 | amp[ncl]=charge; | |
1051 | amp[ncl]/=gainGG; | |
1052 | amp[ncl]/=gainPad; | |
1053 | amp[ncl]/=corrShape; | |
1054 | amp[ncl]/=corrPadType; | |
1055 | amp[ncl]/=corrPos; | |
1056 | amp[ncl]/=corrNorm; | |
1057 | // | |
0a65832b | 1058 | ncl++; |
1059 | } | |
8076baa0 | 1060 | |
0a65832b | 1061 | if (type>3) return ncl; |
1062 | TMath::Sort(ncl,amp, indexes, kFALSE); | |
1063 | ||
8076baa0 | 1064 | if (ncl<10) return 0; |
0a65832b | 1065 | |
1066 | Float_t suma=0; | |
83afd539 | 1067 | Float_t suma2=0; |
0a65832b | 1068 | Float_t sumn=0; |
1069 | Int_t icl0=TMath::Nint(ncl*low); | |
1070 | Int_t icl1=TMath::Nint(ncl*up); | |
1071 | for (Int_t icl=icl0; icl<icl1;icl++){ | |
1072 | suma+=amp[indexes[icl]]; | |
83afd539 | 1073 | suma2+=amp[indexes[icl]]*amp[indexes[icl]]; |
0a65832b | 1074 | sumn++; |
1075 | } | |
83afd539 | 1076 | Float_t mean =suma/sumn; |
1077 | Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean)); | |
3af3fbc4 | 1078 | // |
1079 | // do time-dependent correction for pressure and temperature variations | |
1080 | UInt_t runNumber = 1; | |
1081 | Float_t corrTimeGain = 1; | |
1082 | AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform(); | |
e5e80ff9 | 1083 | const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam(); |
1084 | if (trans && recoParam->GetUseGainCorrectionTime()>0) { | |
3af3fbc4 | 1085 | runNumber = trans->GetCurrentRunNumber(); |
e5e80ff9 | 1086 | //AliTPCcalibDB::Instance()->SetRun(runNumber); |
a2c3785e | 1087 | TObjArray * timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber); |
3af3fbc4 | 1088 | if (timeGainSplines) { |
1089 | UInt_t time = trans->GetCurrentTimeStamp(); | |
1090 | AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0); | |
1091 | AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1); | |
1092 | if (fitMIP) { | |
108a67db | 1093 | corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time);/*fitMIP->Eval(time);*/ |
3af3fbc4 | 1094 | } else { |
108a67db | 1095 | if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time);/*fitFPcosmic->Eval(time);*/ |
3af3fbc4 | 1096 | } |
1097 | } | |
1098 | } | |
1099 | mean /= corrTimeGain; | |
1100 | rms /= corrTimeGain; | |
1101 | // | |
83afd539 | 1102 | if (returnVal==1) return rms; |
8a92e133 | 1103 | if (returnVal==2) return ncl; |
1104 | return mean; | |
1105 | } | |
1106 | ||
2efc897f | 1107 | Float_t AliTPCseed::CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal, Int_t rowThres){ |
8a92e133 | 1108 | |
1109 | // | |
1110 | // calculates dedx using the cluster | |
1111 | // low - up specify trunc mean range - default form 0-0.7 | |
1112 | // type - 1 - max charge or 0- total charge in cluster | |
1113 | // //2- max no corr 3- total+ correction | |
1114 | // i1-i2 - the pad-row range used for calculation | |
1115 | // | |
1116 | // posNorm - usage of pos normalization | |
1117 | // returnVal - 0 return mean | |
1118 | // - 1 return RMS | |
1119 | // - 2 return number of clusters | |
2efc897f | 1120 | // |
1121 | // rowThres - number of rows before and after given pad row to check for clusters below threshold | |
8a92e133 | 1122 | // |
1123 | // normalization parametrization taken from AliTPCClusterParam | |
1124 | // | |
1125 | AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1126 | AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters(); | |
1127 | if (!parcl) return 0; | |
1128 | if (!param) return 0; | |
1129 | Int_t row0 = param->GetNRowLow(); | |
1130 | Int_t row1 = row0+param->GetNRowUp1(); | |
1131 | ||
1132 | Float_t amp[160]; | |
1133 | Int_t indexes[160]; | |
1134 | Int_t ncl=0; | |
2efc897f | 1135 | Int_t nclBelowThr = 0; // counts number of clusters below threshold |
8a92e133 | 1136 | // |
1137 | // | |
1138 | Float_t gainGG = 1; // gas gain factor -always enabled | |
1139 | Float_t gainPad = 1; // gain map - used always | |
1140 | Float_t corrPos = 1; // local position correction - if posNorm enabled | |
8a92e133 | 1141 | // |
1142 | // | |
1143 | // | |
1144 | if (AliTPCcalibDB::Instance()->GetParameters()){ | |
1145 | gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain | |
1146 | } | |
649fcc43 | 1147 | // |
1148 | // extract time-dependent correction for pressure and temperature variations | |
1149 | // | |
1150 | UInt_t runNumber = 1; | |
1151 | Float_t corrTimeGain = 1; | |
1152 | TObjArray * timeGainSplines = 0x0; | |
1153 | TGraphErrors * grPadEqual = 0x0; | |
1154 | // | |
1155 | AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform(); | |
1156 | const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam(); | |
6d64657a | 1157 | // |
1158 | if (recoParam->GetNeighborRowsDedx() == 0) rowThres = 0; | |
1159 | // | |
649fcc43 | 1160 | if (trans) { |
2efc897f | 1161 | runNumber = trans->GetCurrentRunNumber(); |
1162 | //AliTPCcalibDB::Instance()->SetRun(runNumber); | |
1163 | timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber); | |
1164 | if (timeGainSplines && recoParam->GetUseGainCorrectionTime()>0) { | |
1165 | UInt_t time = trans->GetCurrentTimeStamp(); | |
1166 | AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0); | |
1167 | AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1); | |
1168 | if (fitMIP) { | |
1169 | corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time); /*fitMIP->Eval(time);*/ | |
649fcc43 | 1170 | } else { |
2efc897f | 1171 | if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time); /*fitFPcosmic->Eval(time); */ |
1172 | } | |
649fcc43 | 1173 | // |
1174 | if (type==1) grPadEqual = (TGraphErrors * ) timeGainSplines->FindObject("TGRAPHERRORS_MEANQMAX_PADREGIONGAIN_BEAM_ALL"); | |
1175 | if (type==0) grPadEqual = (TGraphErrors * ) timeGainSplines->FindObject("TGRAPHERRORS_MEANQTOT_PADREGIONGAIN_BEAM_ALL"); | |
2efc897f | 1176 | } |
649fcc43 | 1177 | } |
2efc897f | 1178 | |
1179 | const Float_t kClusterShapeCut = 1.5; // IMPPRTANT TO DO: move value to AliTPCRecoParam | |
8a92e133 | 1180 | const Float_t ktany = TMath::Tan(TMath::DegToRad()*10); |
1181 | const Float_t kedgey =3.; | |
1182 | // | |
1183 | // | |
1184 | for (Int_t irow=i1; irow<i2; irow++){ | |
1185 | AliTPCclusterMI* cluster = GetClusterPointer(irow); | |
2efc897f | 1186 | if (!cluster) { |
1187 | Bool_t isClBefore = kFALSE; | |
1188 | Bool_t isClAfter = kFALSE; | |
1189 | for(Int_t ithres = 1; ithres <= rowThres; ithres++) { | |
1190 | AliTPCclusterMI * clusterBefore = GetClusterPointer(irow - ithres); | |
1191 | if (clusterBefore) isClBefore = kTRUE; | |
1192 | AliTPCclusterMI * clusterAfter = GetClusterPointer(irow + ithres); | |
1193 | if (clusterAfter) isClAfter = kTRUE; | |
1194 | } | |
1195 | if (isClBefore && isClAfter) nclBelowThr++; | |
1196 | continue; | |
1197 | } | |
1198 | // | |
1199 | // | |
8a92e133 | 1200 | if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster |
2efc897f | 1201 | // |
1202 | AliTPCTrackerPoint * point = GetTrackPoint(irow); | |
1203 | if (point==0) continue; | |
1204 | Float_t rsigmay = TMath::Sqrt(point->GetSigmaY()); | |
1205 | if (rsigmay > kClusterShapeCut) continue; | |
1206 | // | |
1207 | if (cluster->IsUsed(11)) continue; // remove shared clusters for PbPb | |
1208 | // | |
8a92e133 | 1209 | Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ(); |
1210 | Int_t ipad= 0; | |
1211 | if (irow>=row0) ipad=1; | |
1212 | if (irow>=row1) ipad=2; | |
1213 | // | |
1214 | // | |
1215 | // | |
1216 | AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor(); | |
1217 | if (gainMap) { | |
1218 | // | |
1219 | // Get gainPad - pad by pad calibration | |
1220 | // | |
1221 | Float_t factor = 1; | |
1222 | AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector()); | |
1223 | if (irow < row0) { // IROC | |
1224 | factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad())); | |
1225 | } else { // OROC | |
1226 | factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad())); | |
1227 | } | |
2efc897f | 1228 | if (factor>0.3) gainPad=factor; |
8a92e133 | 1229 | } |
8a92e133 | 1230 | // |
1231 | // Do position normalization - relative distance to | |
1232 | // center of pad- time bin | |
1233 | ||
8a92e133 | 1234 | Float_t ty = TMath::Abs(point->GetAngleY()); |
1235 | Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty)); | |
1236 | Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector()); | |
1237 | Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth(); | |
1238 | ||
1239 | yres0 *=parcl->GetQnormCorr(ipad, type,0); | |
1240 | zres0 *=parcl->GetQnormCorr(ipad, type,1); | |
1241 | Float_t effLength=parcl->GetQnormCorr(ipad, type,4)*0.5; | |
1242 | Float_t effDiff =(parcl->GetQnormCorr(ipad, type,2)+parcl->GetQnormCorr(ipad, type,3))*0.5; | |
1243 | // | |
1244 | if (type==1) { | |
1245 | corrPos = parcl->GetQnormCorr(ipad, type,5)* | |
1246 | parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
1247 | cluster->GetTimeBin(),ty,tz,yres0,zres0,effLength,effDiff); | |
1248 | Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.); | |
1249 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm); | |
1250 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty); | |
1251 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz); | |
1252 | // | |
1253 | } | |
1254 | if (type==0) { | |
1255 | corrPos = parcl->GetQnormCorr(ipad, type,5)* | |
1256 | parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
1257 | cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,effLength,effDiff); | |
1258 | ||
1259 | Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.); | |
1260 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm); | |
1261 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty); | |
1262 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz); | |
1263 | // | |
1264 | } | |
2efc897f | 1265 | // |
1266 | // pad region equalization outside of cluster param | |
1267 | // | |
1268 | Float_t gainEqualPadRegion = 1; | |
649fcc43 | 1269 | if (grPadEqual) gainEqualPadRegion = grPadEqual->Eval(ipad); |
8a92e133 | 1270 | // |
1271 | amp[ncl]=charge; | |
1272 | amp[ncl]/=gainGG; | |
1273 | amp[ncl]/=gainPad; | |
1274 | amp[ncl]/=corrPos; | |
2efc897f | 1275 | amp[ncl]/=gainEqualPadRegion; |
8a92e133 | 1276 | // |
1277 | ncl++; | |
1278 | } | |
1279 | ||
1280 | if (type>3) return ncl; | |
1281 | TMath::Sort(ncl,amp, indexes, kFALSE); | |
2efc897f | 1282 | // |
8a92e133 | 1283 | if (ncl<10) return 0; |
2efc897f | 1284 | // |
1285 | Double_t * ampWithBelow = new Double_t[ncl + nclBelowThr]; | |
1286 | for(Int_t iCl = 0; iCl < ncl + nclBelowThr; iCl++) { | |
1287 | if (iCl < nclBelowThr) { | |
1288 | ampWithBelow[iCl] = amp[indexes[0]]; | |
1289 | } else { | |
1290 | ampWithBelow[iCl] = amp[indexes[iCl - nclBelowThr]]; | |
1291 | } | |
1292 | } | |
1293 | //printf("DEBUG: %i shit %f", nclBelowThr, amp[indexes[0]]); | |
1294 | // | |
8a92e133 | 1295 | Float_t suma=0; |
1296 | Float_t suma2=0; | |
1297 | Float_t sumn=0; | |
2efc897f | 1298 | Int_t icl0=TMath::Nint((ncl + nclBelowThr)*low); |
1299 | Int_t icl1=TMath::Nint((ncl + nclBelowThr)*up); | |
8a92e133 | 1300 | for (Int_t icl=icl0; icl<icl1;icl++){ |
2efc897f | 1301 | suma+=ampWithBelow[icl]; |
1302 | suma2+=ampWithBelow[icl]*ampWithBelow[icl]; | |
8a92e133 | 1303 | sumn++; |
1304 | } | |
1305 | Float_t mean =suma/sumn; | |
1306 | Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean)); | |
3af3fbc4 | 1307 | // |
3af3fbc4 | 1308 | mean /= corrTimeGain; |
1309 | rms /= corrTimeGain; | |
1310 | // | |
8a92e133 | 1311 | if (returnVal==1) return rms; |
83afd539 | 1312 | if (returnVal==2) return ncl; |
1313 | return mean; | |
0a65832b | 1314 | } |
1315 | ||
83afd539 | 1316 | |
0a65832b | 1317 | |
1318 | ||
eb02f63a | 1319 | Float_t AliTPCseed::CookShape(Int_t type){ |
1320 | // | |
1321 | // | |
1322 | // | |
1323 | //----------------------------------------------------------------- | |
1324 | // This funtion calculates dE/dX within the "low" and "up" cuts. | |
1325 | //----------------------------------------------------------------- | |
1326 | Float_t means=0; | |
1327 | Float_t meanc=0; | |
1328 | for (Int_t i =0; i<160;i++) { | |
1329 | AliTPCTrackerPoint * point = GetTrackPoint(i); | |
1330 | if (point==0) continue; | |
1331 | ||
1332 | AliTPCclusterMI * cl = fClusterPointer[i]; | |
1333 | if (cl==0) continue; | |
1334 | ||
1335 | Float_t rsigmay = TMath::Sqrt(point->GetSigmaY()); | |
1336 | Float_t rsigmaz = TMath::Sqrt(point->GetSigmaZ()); | |
1337 | Float_t rsigma = (rsigmay+rsigmaz)*0.5; | |
1338 | if (type==0) means+=rsigma; | |
1339 | if (type==1) means+=rsigmay; | |
1340 | if (type==2) means+=rsigmaz; | |
1341 | meanc++; | |
1342 | } | |
1343 | Float_t mean = (meanc>0)? means/meanc:0; | |
1344 | return mean; | |
1345 | } | |
87e92a27 | 1346 | |
1347 | ||
1348 | ||
1349 | Int_t AliTPCseed::RefitTrack(AliTPCseed *seed, AliExternalTrackParam * parin, AliExternalTrackParam * parout){ | |
1350 | // | |
1351 | // Refit the track | |
1352 | // return value - number of used clusters | |
1353 | // | |
1354 | // | |
1355 | const Int_t kMinNcl =10; | |
1356 | AliTPCseed *track=new AliTPCseed(*seed); | |
1357 | Int_t sector=-1; | |
1358 | // reset covariance | |
1359 | // | |
1360 | Double_t covar[15]; | |
1361 | for (Int_t i=0;i<15;i++) covar[i]=0; | |
1362 | covar[0]=10.*10.; | |
1363 | covar[2]=10.*10.; | |
1364 | covar[5]=10.*10./(64.*64.); | |
1365 | covar[9]=10.*10./(64.*64.); | |
1366 | covar[14]=1*1; | |
1367 | // | |
1368 | ||
1369 | Float_t xmin=1000, xmax=-10000; | |
1370 | Int_t imin=158, imax=0; | |
1371 | for (Int_t i=0;i<160;i++) { | |
1372 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1373 | if (!c) continue; | |
1374 | if (sector<0) sector = c->GetDetector(); | |
1375 | if (c->GetX()<xmin) xmin=c->GetX(); | |
1376 | if (c->GetX()>xmax) xmax=c->GetX(); | |
1377 | if (i<imin) imin=i; | |
1378 | if (i>imax) imax=i; | |
1379 | } | |
1380 | if(imax-imin<kMinNcl) { | |
1381 | delete track; | |
1382 | return 0 ; | |
1383 | } | |
1384 | // Not succes to rotate | |
1385 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1386 | delete track; | |
1387 | return 0; | |
1388 | } | |
1389 | // | |
1390 | // | |
1391 | // fit from inner to outer row | |
1392 | // | |
1393 | AliExternalTrackParam paramIn; | |
1394 | AliExternalTrackParam paramOut; | |
1395 | Bool_t isOK=kTRUE; | |
be34cb88 | 1396 | Int_t ncl=0; |
87e92a27 | 1397 | // |
1398 | // | |
1399 | // | |
1400 | for (Int_t i=imin; i<=imax; i++){ | |
1401 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1402 | if (!c) continue; | |
1403 | // if (RejectCluster(c,track)) continue; | |
be34cb88 | 1404 | sector = (c->GetDetector()%18); |
1405 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1406 | //continue; | |
1407 | } | |
87e92a27 | 1408 | Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()}; |
1409 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
1410 | if (!track->PropagateTo(r[0])) { | |
1411 | isOK=kFALSE; | |
87e92a27 | 1412 | } |
1413 | if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE; | |
1414 | } | |
1415 | if (!isOK) { delete track; return 0;} | |
1416 | track->AddCovariance(covar); | |
1417 | // | |
1418 | // | |
1419 | // | |
1420 | for (Int_t i=imax; i>=imin; i--){ | |
1421 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1422 | if (!c) continue; | |
1423 | //if (RejectCluster(c,track)) continue; | |
be34cb88 | 1424 | sector = (c->GetDetector()%18); |
1425 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1426 | //continue; | |
1427 | } | |
87e92a27 | 1428 | Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()}; |
1429 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
1430 | if (!track->PropagateTo(r[0])) { | |
1431 | isOK=kFALSE; | |
87e92a27 | 1432 | } |
1433 | if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE; | |
1434 | } | |
be34cb88 | 1435 | //if (!isOK) { delete track; return 0;} |
87e92a27 | 1436 | paramIn = *track; |
1437 | track->AddCovariance(covar); | |
1438 | // | |
1439 | // | |
1440 | for (Int_t i=imin; i<=imax; i++){ | |
1441 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1442 | if (!c) continue; | |
be34cb88 | 1443 | sector = (c->GetDetector()%18); |
1444 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1445 | //continue; | |
1446 | } | |
1447 | ncl++; | |
87e92a27 | 1448 | //if (RejectCluster(c,track)) continue; |
1449 | Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()}; | |
1450 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
1451 | if (!track->PropagateTo(r[0])) { | |
1452 | isOK=kFALSE; | |
87e92a27 | 1453 | } |
1454 | if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE; | |
1455 | } | |
be34cb88 | 1456 | //if (!isOK) { delete track; return 0;} |
87e92a27 | 1457 | paramOut=*track; |
87e92a27 | 1458 | // |
1459 | // | |
1460 | // | |
1461 | if (parin) (*parin)=paramIn; | |
1462 | if (parout) (*parout)=paramOut; | |
6e23caff | 1463 | delete track; |
be34cb88 | 1464 | return ncl; |
87e92a27 | 1465 | } |
1466 | ||
1467 | ||
1468 | ||
1469 | Bool_t AliTPCseed::RefitTrack(AliTPCseed* /*seed*/, Bool_t /*out*/){ | |
1470 | // | |
1471 | // | |
1472 | // | |
1473 | return kFALSE; | |
1474 | } | |
3247d397 | 1475 | |
1476 | ||
1477 | ||
1478 | ||
1479 | ||
1480 | ||
1481 | void AliTPCseed::GetError(AliTPCclusterMI* cluster, AliExternalTrackParam * param, | |
1482 | Double_t& erry, Double_t &errz) | |
1483 | { | |
1484 | // | |
1485 | // Get cluster error at given position | |
1486 | // | |
1487 | AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1488 | Double_t tany,tanz; | |
1489 | Double_t snp1=param->GetSnp(); | |
60e55aee | 1490 | tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1491 | // |
1492 | Double_t tgl1=param->GetTgl(); | |
60e55aee | 1493 | tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1494 | // |
1495 | Int_t padSize = 0; // short pads | |
1496 | if (cluster->GetDetector() >= 36) { | |
1497 | padSize = 1; // medium pads | |
1498 | if (cluster->GetRow() > 63) padSize = 2; // long pads | |
1499 | } | |
1500 | ||
1501 | erry = clusterParam->GetError0Par( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany) ); | |
1502 | errz = clusterParam->GetError0Par( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) ); | |
1503 | } | |
1504 | ||
1505 | ||
1506 | void AliTPCseed::GetShape(AliTPCclusterMI* cluster, AliExternalTrackParam * param, | |
1507 | Double_t& rmsy, Double_t &rmsz) | |
1508 | { | |
1509 | // | |
1510 | // Get cluster error at given position | |
1511 | // | |
1512 | AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1513 | Double_t tany,tanz; | |
1514 | Double_t snp1=param->GetSnp(); | |
60e55aee | 1515 | tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1516 | // |
1517 | Double_t tgl1=param->GetTgl(); | |
60e55aee | 1518 | tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1519 | // |
1520 | Int_t padSize = 0; // short pads | |
1521 | if (cluster->GetDetector() >= 36) { | |
1522 | padSize = 1; // medium pads | |
1523 | if (cluster->GetRow() > 63) padSize = 2; // long pads | |
1524 | } | |
1525 | ||
1526 | rmsy = clusterParam->GetRMSQ( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany), TMath::Abs(cluster->GetMax()) ); | |
1527 | rmsz = clusterParam->GetRMSQ( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) ,TMath::Abs(cluster->GetMax())); | |
1528 | } | |
ba5e52fb | 1529 | |
1530 | ||
1531 | ||
1532 | Double_t AliTPCseed::GetQCorrGeom(Float_t ty, Float_t tz){ | |
1533 | //Geoetrical | |
1534 | //ty - tangent in local y direction | |
1535 | //tz - tangent | |
1536 | // | |
1537 | Float_t norm=TMath::Sqrt(1+ty*ty+tz*tz); | |
1538 | return norm; | |
1539 | } | |
1540 | ||
83afd539 | 1541 | Double_t AliTPCseed::GetQCorrShape(Int_t ipad, Int_t type,Float_t z, Float_t ty, Float_t tz, Float_t /*q*/, Float_t /*thr*/){ |
ba5e52fb | 1542 | // |
1543 | // Q normalization | |
1544 | // | |
1545 | // return value = Q Normalization factor | |
1546 | // Normalization - 1 - shape factor part for full drift | |
1547 | // 1 - electron attachment for 0 drift | |
1548 | ||
1549 | // Input parameters: | |
1550 | // | |
1551 | // ipad - 0 short pad | |
1552 | // 1 medium pad | |
1553 | // 2 long pad | |
1554 | // | |
1555 | // type - 0 qmax | |
1556 | // - 1 qtot | |
1557 | // | |
1558 | //z - z position (-250,250 cm) | |
1559 | //ty - tangent in local y direction | |
1560 | //tz - tangent | |
1561 | // | |
1562 | ||
1563 | AliTPCClusterParam * paramCl = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1564 | AliTPCParam * paramTPC = AliTPCcalibDB::Instance()->GetParameters(); | |
1565 | ||
1566 | if (!paramCl) return 1; | |
1567 | // | |
1568 | Double_t dr = 250.-TMath::Abs(z); | |
1569 | Double_t sy = paramCl->GetRMS0( 0,ipad, dr, TMath::Abs(ty)); | |
1570 | Double_t sy0= paramCl->GetRMS0(0,ipad, 250, 0); | |
1571 | Double_t sz = paramCl->GetRMS0( 1,ipad, dr, TMath::Abs(tz)); | |
1572 | Double_t sz0= paramCl->GetRMS0(1,ipad, 250, 0); | |
1573 | ||
1574 | Double_t sfactorMax = TMath::Sqrt(sy0*sz0/(sy*sz)); | |
1575 | ||
1576 | ||
1577 | Double_t dt = 1000000*(dr/paramTPC->GetDriftV()); //time in microsecond | |
1578 | Double_t attProb = TMath::Exp(-paramTPC->GetAttCoef()*paramTPC->GetOxyCont()*dt); | |
1579 | // | |
1580 | // | |
1581 | if (type==0) return sfactorMax*attProb; | |
1582 | ||
1583 | return attProb; | |
1584 | ||
1585 | ||
1586 | } | |
1587 |