]>
Commit | Line | Data |
---|---|---|
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" | |
25 | #include "AliTPCseed.h" | |
3f82c4f2 | 26 | #include "AliTPCReconstructor.h" |
0a65832b | 27 | #include "AliTPCClusterParam.h" |
7cd8ac3f | 28 | #include "AliTPCCalPad.h" |
29 | #include "AliTPCCalROC.h" | |
37540068 | 30 | #include "AliTPCcalibDB.h" |
d080e4a4 | 31 | #include "AliTPCParam.h" |
5731b051 | 32 | #include "AliMathBase.h" |
3af3fbc4 | 33 | #include "AliTPCTransform.h" |
34 | #include "AliSplineFit.h" | |
35 | #include "AliCDBManager.h" | |
108a67db | 36 | #include "AliTPCcalibDButil.h" |
7cd8ac3f | 37 | |
81e97e0d | 38 | |
39 | ClassImp(AliTPCseed) | |
40 | ||
41 | ||
42 | ||
32fab534 | 43 | AliTPCseed::AliTPCseed(): |
44 | AliTPCtrack(), | |
45 | fEsd(0x0), | |
2928bdf0 | 46 | fClusterOwner(kFALSE), |
32fab534 | 47 | fRow(0), |
48 | fSector(-1), | |
49 | fRelativeSector(-1), | |
50 | fCurrentSigmaY2(1e10), | |
51 | fCurrentSigmaZ2(1e10), | |
e0e13b88 | 52 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
53 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 54 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
55 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
e0e13b88 | 56 | // |
32fab534 | 57 | fErrorY2(1e10), |
58 | fErrorZ2(1e10), | |
59 | fCurrentCluster(0x0), | |
60 | fCurrentClusterIndex1(-1), | |
61 | fInDead(kFALSE), | |
62 | fIsSeeding(kFALSE), | |
63 | fNoCluster(0), | |
64 | fSort(0), | |
65 | fBSigned(kFALSE), | |
66 | fSeedType(0), | |
67 | fSeed1(-1), | |
68 | fSeed2(-1), | |
69 | fMAngular(0), | |
19b00333 | 70 | fCircular(0), |
71 | fClusterMap(159), | |
72 | fSharedMap(159) | |
32fab534 | 73 | { |
81e97e0d | 74 | // |
5c09947e | 75 | for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3); |
81e97e0d | 76 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; |
77 | for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0; | |
32fab534 | 78 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0.2; |
79 | for (Int_t i=0;i<4;i++) { | |
80 | fDEDX[i] = 0.; | |
81 | fSDEDX[i] = 1e10; | |
82 | fNCDEDX[i] = 0; | |
83 | } | |
84 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
bfb57b6c | 85 | // for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE; |
86 | //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE; | |
87 | fClusterMap.ResetAllBits(kFALSE); | |
88 | fSharedMap.ResetAllBits(kFALSE); | |
89 | ||
81e97e0d | 90 | } |
32fab534 | 91 | |
2928bdf0 | 92 | AliTPCseed::AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner): |
32fab534 | 93 | AliTPCtrack(s), |
94 | fEsd(0x0), | |
2928bdf0 | 95 | fClusterOwner(clusterOwner), |
32fab534 | 96 | fRow(0), |
97 | fSector(-1), | |
98 | fRelativeSector(-1), | |
c07cb486 | 99 | fCurrentSigmaY2(-1), |
100 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 101 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
102 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 103 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
104 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 105 | fErrorY2(1e10), |
106 | fErrorZ2(1e10), | |
107 | fCurrentCluster(0x0), | |
108 | fCurrentClusterIndex1(-1), | |
109 | fInDead(kFALSE), | |
110 | fIsSeeding(kFALSE), | |
111 | fNoCluster(0), | |
112 | fSort(0), | |
113 | fBSigned(kFALSE), | |
114 | fSeedType(0), | |
115 | fSeed1(-1), | |
116 | fSeed2(-1), | |
117 | fMAngular(0), | |
19b00333 | 118 | fCircular(0), |
119 | fClusterMap(s.fClusterMap), | |
120 | fSharedMap(s.fSharedMap) | |
32fab534 | 121 | { |
81e97e0d | 122 | //--------------------- |
123 | // dummy copy constructor | |
124 | //------------------------- | |
2928bdf0 | 125 | for (Int_t i=0;i<160;i++) { |
126 | fClusterPointer[i]=0; | |
127 | if (fClusterOwner){ | |
128 | if (s.fClusterPointer[i]) | |
129 | fClusterPointer[i] = new AliTPCclusterMI(*(s.fClusterPointer[i])); | |
130 | }else{ | |
131 | fClusterPointer[i] = s.fClusterPointer[i]; | |
132 | } | |
133 | fTrackPoints[i] = s.fTrackPoints[i]; | |
134 | } | |
81e97e0d | 135 | for (Int_t i=0;i<160;i++) fIndex[i] = s.fIndex[i]; |
5c09947e | 136 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=s.fTPCr[i]; |
137 | for (Int_t i=0;i<4;i++) { | |
138 | fDEDX[i] = s.fDEDX[i]; | |
139 | fSDEDX[i] = s.fSDEDX[i]; | |
140 | fNCDEDX[i] = s.fNCDEDX[i]; | |
141 | } | |
142 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = s.fOverlapLabels[i]; | |
19b00333 | 143 | |
81e97e0d | 144 | } |
5c09947e | 145 | |
146 | ||
32fab534 | 147 | AliTPCseed::AliTPCseed(const AliTPCtrack &t): |
148 | AliTPCtrack(t), | |
149 | fEsd(0x0), | |
2928bdf0 | 150 | fClusterOwner(kFALSE), |
32fab534 | 151 | fRow(0), |
152 | fSector(-1), | |
153 | fRelativeSector(-1), | |
c07cb486 | 154 | fCurrentSigmaY2(-1), |
155 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 156 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
157 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 158 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
159 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 160 | fErrorY2(1e10), |
161 | fErrorZ2(1e10), | |
162 | fCurrentCluster(0x0), | |
163 | fCurrentClusterIndex1(-1), | |
164 | fInDead(kFALSE), | |
165 | fIsSeeding(kFALSE), | |
166 | fNoCluster(0), | |
167 | fSort(0), | |
168 | fBSigned(kFALSE), | |
169 | fSeedType(0), | |
170 | fSeed1(-1), | |
171 | fSeed2(-1), | |
172 | fMAngular(0), | |
19b00333 | 173 | fCircular(0), |
174 | fClusterMap(159), | |
175 | fSharedMap(159) | |
32fab534 | 176 | { |
81e97e0d | 177 | // |
32fab534 | 178 | // Constructor from AliTPCtrack |
179 | // | |
180 | fFirstPoint =0; | |
105b1b81 | 181 | for (Int_t i=0;i<5;i++) fTPCr[i]=0.2; |
81e97e0d | 182 | for (Int_t i=0;i<160;i++) { |
183 | fClusterPointer[i] = 0; | |
184 | Int_t index = t.GetClusterIndex(i); | |
185 | if (index>=-1){ | |
186 | SetClusterIndex2(i,index); | |
187 | } | |
188 | else{ | |
189 | SetClusterIndex2(i,-3); | |
190 | } | |
191 | } | |
32fab534 | 192 | for (Int_t i=0;i<4;i++) { |
193 | fDEDX[i] = 0.; | |
194 | fSDEDX[i] = 1e10; | |
195 | fNCDEDX[i] = 0; | |
196 | } | |
197 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
bfb57b6c | 198 | |
199 | //for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE; | |
200 | //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE; | |
201 | fClusterMap.ResetAllBits(kFALSE); | |
202 | fSharedMap.ResetAllBits(kFALSE); | |
203 | ||
81e97e0d | 204 | } |
205 | ||
6c94f330 | 206 | AliTPCseed::AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5], |
207 | const Double_t cc[15], Int_t index): | |
208 | AliTPCtrack(xr, alpha, xx, cc, index), | |
32fab534 | 209 | fEsd(0x0), |
2928bdf0 | 210 | fClusterOwner(kFALSE), |
32fab534 | 211 | fRow(0), |
212 | fSector(-1), | |
213 | fRelativeSector(-1), | |
c07cb486 | 214 | fCurrentSigmaY2(-1), |
215 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 216 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
217 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 218 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
219 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 220 | fErrorY2(1e10), |
221 | fErrorZ2(1e10), | |
222 | fCurrentCluster(0x0), | |
223 | fCurrentClusterIndex1(-1), | |
224 | fInDead(kFALSE), | |
225 | fIsSeeding(kFALSE), | |
226 | fNoCluster(0), | |
227 | fSort(0), | |
228 | fBSigned(kFALSE), | |
229 | fSeedType(0), | |
230 | fSeed1(-1), | |
231 | fSeed2(-1), | |
232 | fMAngular(0), | |
19b00333 | 233 | fCircular(0), |
234 | fClusterMap(159), | |
235 | fSharedMap(159) | |
32fab534 | 236 | { |
237 | // | |
238 | // Constructor | |
81e97e0d | 239 | // |
32fab534 | 240 | fFirstPoint =0; |
5c09947e | 241 | for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3); |
81e97e0d | 242 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; |
81e97e0d | 243 | for (Int_t i=0;i<5;i++) fTPCr[i]=0.2; |
32fab534 | 244 | for (Int_t i=0;i<4;i++) { |
245 | fDEDX[i] = 0.; | |
246 | fSDEDX[i] = 1e10; | |
247 | fNCDEDX[i] = 0; | |
248 | } | |
249 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
81e97e0d | 250 | } |
251 | ||
252 | AliTPCseed::~AliTPCseed(){ | |
253 | // | |
254 | // destructor | |
81e97e0d | 255 | fNoCluster =0; |
2928bdf0 | 256 | if (fClusterOwner){ |
257 | for (Int_t icluster=0; icluster<160; icluster++){ | |
258 | delete fClusterPointer[icluster]; | |
259 | } | |
260 | } | |
bfb57b6c | 261 | |
81e97e0d | 262 | } |
179c6296 | 263 | //_________________________________________________ |
316c6cd9 | 264 | AliTPCseed & AliTPCseed::operator=(const AliTPCseed ¶m) |
179c6296 | 265 | { |
266 | // | |
316c6cd9 | 267 | // assignment operator |
179c6296 | 268 | // |
316c6cd9 | 269 | if(this!=¶m){ |
270 | AliTPCtrack::operator=(param); | |
271 | fEsd =param.fEsd; | |
272 | for(Int_t i = 0;i<160;++i)fClusterPointer[i] = param.fClusterPointer[i]; // this is not allocated by AliTPCSeed | |
273 | fClusterOwner = param.fClusterOwner; | |
274 | // leave out fPoint, they are also not copied in the copy ctor... | |
275 | // but deleted in the dtor... strange... | |
316c6cd9 | 276 | fRow = param.fRow; |
277 | fSector = param.fSector; | |
278 | fRelativeSector = param.fRelativeSector; | |
279 | fCurrentSigmaY2 = param.fCurrentSigmaY2; | |
280 | fCurrentSigmaZ2 = param.fCurrentSigmaZ2; | |
281 | fErrorY2 = param.fErrorY2; | |
282 | fErrorZ2 = param.fErrorZ2; | |
283 | fCurrentCluster = param.fCurrentCluster; // this is not allocated by AliTPCSeed | |
284 | fCurrentClusterIndex1 = param.fCurrentClusterIndex1; | |
285 | fInDead = param.fInDead; | |
286 | fIsSeeding = param.fIsSeeding; | |
287 | fNoCluster = param.fNoCluster; | |
288 | fSort = param.fSort; | |
289 | fBSigned = param.fBSigned; | |
290 | for(Int_t i = 0;i<4;++i){ | |
291 | fDEDX[i] = param.fDEDX[i]; | |
292 | fSDEDX[i] = param.fSDEDX[i]; | |
293 | fNCDEDX[i] = param.fNCDEDX[i]; | |
294 | } | |
295 | for(Int_t i = 0;i<AliPID::kSPECIES;++i)fTPCr[i] = param.fTPCr[i]; | |
296 | ||
297 | fSeedType = param.fSeedType; | |
298 | fSeed1 = param.fSeed1; | |
299 | fSeed2 = param.fSeed2; | |
300 | for(Int_t i = 0;i<12;++i)fOverlapLabels[i] = param.fOverlapLabels[i]; | |
301 | fMAngular = param.fMAngular; | |
302 | fCircular = param.fCircular; | |
303 | for(int i = 0;i<160;++i)fTrackPoints[i] = param.fTrackPoints[i]; | |
304 | fClusterMap = param.fClusterMap; | |
305 | fSharedMap = param.fSharedMap; | |
306 | } | |
179c6296 | 307 | return (*this); |
308 | } | |
309 | //____________________________________________________ | |
81e97e0d | 310 | AliTPCTrackerPoint * AliTPCseed::GetTrackPoint(Int_t i) |
311 | { | |
312 | // | |
313 | // | |
314 | return &fTrackPoints[i]; | |
315 | } | |
316 | ||
81e97e0d | 317 | |
318 | ||
319 | Double_t AliTPCseed::GetDensityFirst(Int_t n) | |
320 | { | |
321 | // | |
322 | // | |
323 | // return cluster for n rows bellow first point | |
324 | Int_t nfoundable = 1; | |
325 | Int_t nfound = 1; | |
326 | for (Int_t i=fLastPoint-1;i>0&&nfoundable<n; i--){ | |
327 | Int_t index = GetClusterIndex2(i); | |
328 | if (index!=-1) nfoundable++; | |
329 | if (index>0) nfound++; | |
330 | } | |
331 | if (nfoundable<n) return 0; | |
332 | return Double_t(nfound)/Double_t(nfoundable); | |
333 | ||
334 | } | |
335 | ||
336 | ||
337 | void AliTPCseed::GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2) | |
338 | { | |
339 | // get cluster stat. on given region | |
340 | // | |
341 | found = 0; | |
342 | foundable = 0; | |
343 | shared =0; | |
344 | for (Int_t i=first;i<last; i++){ | |
345 | Int_t index = GetClusterIndex2(i); | |
346 | if (index!=-1) foundable++; | |
6d493ea0 | 347 | if (index&0x8000) continue; |
81e97e0d | 348 | if (fClusterPointer[i]) { |
349 | found++; | |
350 | } | |
351 | else | |
352 | continue; | |
353 | ||
354 | if (fClusterPointer[i]->IsUsed(10)) { | |
355 | shared++; | |
356 | continue; | |
357 | } | |
358 | if (!plus2) continue; //take also neighborhoud | |
359 | // | |
360 | if ( (i>0) && fClusterPointer[i-1]){ | |
361 | if (fClusterPointer[i-1]->IsUsed(10)) { | |
362 | shared++; | |
363 | continue; | |
364 | } | |
365 | } | |
366 | if ( fClusterPointer[i+1]){ | |
367 | if (fClusterPointer[i+1]->IsUsed(10)) { | |
368 | shared++; | |
369 | continue; | |
370 | } | |
371 | } | |
372 | ||
373 | } | |
374 | //if (shared>found){ | |
375 | //Error("AliTPCseed::GetClusterStatistic","problem\n"); | |
376 | //} | |
377 | } | |
378 | ||
379 | ||
380 | ||
381 | ||
382 | ||
383 | void AliTPCseed::Reset(Bool_t all) | |
384 | { | |
385 | // | |
386 | // | |
387 | SetNumberOfClusters(0); | |
388 | fNFoundable = 0; | |
389 | SetChi2(0); | |
6c94f330 | 390 | ResetCovariance(10.); |
81e97e0d | 391 | /* |
392 | if (fTrackPoints){ | |
393 | for (Int_t i=0;i<8;i++){ | |
394 | delete [] fTrackPoints[i]; | |
395 | } | |
396 | delete fTrackPoints; | |
397 | fTrackPoints =0; | |
398 | } | |
399 | */ | |
400 | ||
401 | if (all){ | |
402 | for (Int_t i=0;i<200;i++) SetClusterIndex2(i,-3); | |
403 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; | |
404 | } | |
405 | ||
406 | } | |
407 | ||
408 | ||
409 | void AliTPCseed::Modify(Double_t factor) | |
410 | { | |
411 | ||
412 | //------------------------------------------------------------------ | |
413 | //This function makes a track forget its history :) | |
414 | //------------------------------------------------------------------ | |
415 | if (factor<=0) { | |
6c94f330 | 416 | ResetCovariance(10.); |
81e97e0d | 417 | return; |
418 | } | |
6c94f330 | 419 | ResetCovariance(factor); |
420 | ||
81e97e0d | 421 | SetNumberOfClusters(0); |
422 | fNFoundable =0; | |
423 | SetChi2(0); | |
424 | fRemoval = 0; | |
425 | fCurrentSigmaY2 = 0.000005; | |
426 | fCurrentSigmaZ2 = 0.000005; | |
427 | fNoCluster = 0; | |
428 | //fFirstPoint = 160; | |
429 | //fLastPoint = 0; | |
430 | } | |
431 | ||
432 | ||
433 | ||
434 | ||
435 | Int_t AliTPCseed::GetProlongation(Double_t xk, Double_t &y, Double_t & z) const | |
436 | { | |
437 | //----------------------------------------------------------------- | |
438 | // This function find proloncation of a track to a reference plane x=xk. | |
439 | // doesn't change internal state of the track | |
440 | //----------------------------------------------------------------- | |
441 | ||
6c94f330 | 442 | Double_t x1=GetX(), x2=x1+(xk-x1), dx=x2-x1; |
81e97e0d | 443 | |
6c94f330 | 444 | if (TMath::Abs(GetSnp()+GetC()*dx) >= AliTPCReconstructor::GetMaxSnpTrack()) { |
81e97e0d | 445 | return 0; |
446 | } | |
447 | ||
448 | // Double_t y1=fP0, z1=fP1; | |
60e55aee | 449 | Double_t c1=GetSnp(), r1=sqrt((1.-c1)*(1.+c1)); |
450 | Double_t c2=c1 + GetC()*dx, r2=sqrt((1.-c2)*(1.+c2)); | |
81e97e0d | 451 | |
6c94f330 | 452 | y = GetY(); |
453 | z = GetZ(); | |
81e97e0d | 454 | //y += dx*(c1+c2)/(r1+r2); |
455 | //z += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3; | |
456 | ||
457 | Double_t dy = dx*(c1+c2)/(r1+r2); | |
458 | Double_t dz = 0; | |
459 | // | |
6c94f330 | 460 | Double_t delta = GetC()*dx*(c1+c2)/(c1*r2 + c2*r1); |
81e97e0d | 461 | /* |
462 | if (TMath::Abs(delta)>0.0001){ | |
463 | dz = fP3*TMath::ASin(delta)/fP4; | |
464 | }else{ | |
465 | dz = dx*fP3*(c1+c2)/(c1*r2 + c2*r1); | |
466 | } | |
467 | */ | |
468 | // dz = fP3*AliTPCFastMath::FastAsin(delta)/fP4; | |
6c94f330 | 469 | dz = GetTgl()*TMath::ASin(delta)/GetC(); |
81e97e0d | 470 | // |
471 | y+=dy; | |
472 | z+=dz; | |
473 | ||
474 | ||
475 | return 1; | |
476 | } | |
477 | ||
478 | ||
479 | //_____________________________________________________________________________ | |
af32720d | 480 | Double_t AliTPCseed::GetPredictedChi2(const AliCluster *c) const |
81e97e0d | 481 | { |
482 | //----------------------------------------------------------------- | |
483 | // This function calculates a predicted chi2 increment. | |
484 | //----------------------------------------------------------------- | |
6c94f330 | 485 | Double_t p[2]={c->GetY(), c->GetZ()}; |
486 | Double_t cov[3]={fErrorY2, 0., fErrorZ2}; | |
9c7b8249 | 487 | |
488 | Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX(); | |
489 | if (TMath::Abs(dx)>0){ | |
490 | Float_t ty = TMath::Tan(TMath::ASin(GetSnp())); | |
491 | Float_t dy = dx*ty; | |
492 | Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl(); | |
493 | p[0] = c->GetY()-dy; | |
494 | p[1] = c->GetZ()-dz; | |
495 | } | |
6c94f330 | 496 | return AliExternalTrackParam::GetPredictedChi2(p,cov); |
81e97e0d | 497 | } |
498 | ||
81e97e0d | 499 | //_________________________________________________________________________________________ |
500 | ||
501 | ||
502 | Int_t AliTPCseed::Compare(const TObject *o) const { | |
503 | //----------------------------------------------------------------- | |
504 | // This function compares tracks according to the sector - for given sector according z | |
505 | //----------------------------------------------------------------- | |
506 | AliTPCseed *t=(AliTPCseed*)o; | |
6c94f330 | 507 | |
81e97e0d | 508 | if (fSort == 0){ |
509 | if (t->fRelativeSector>fRelativeSector) return -1; | |
510 | if (t->fRelativeSector<fRelativeSector) return 1; | |
511 | Double_t z2 = t->GetZ(); | |
512 | Double_t z1 = GetZ(); | |
513 | if (z2>z1) return 1; | |
514 | if (z2<z1) return -1; | |
515 | return 0; | |
516 | } | |
517 | else { | |
518 | Float_t f2 =1; | |
6c23ffed | 519 | f2 = 1-20*TMath::Sqrt(t->GetSigma1Pt2())/(t->OneOverPt()+0.0066); |
81e97e0d | 520 | if (t->fBConstrain) f2=1.2; |
521 | ||
522 | Float_t f1 =1; | |
6c23ffed | 523 | f1 = 1-20*TMath::Sqrt(GetSigma1Pt2())/(OneOverPt()+0.0066); |
81e97e0d | 524 | |
525 | if (fBConstrain) f1=1.2; | |
526 | ||
527 | if (t->GetNumberOfClusters()*f2 <GetNumberOfClusters()*f1) return -1; | |
528 | else return +1; | |
529 | } | |
530 | } | |
531 | ||
532 | ||
533 | ||
534 | ||
535 | //_____________________________________________________________________________ | |
70e20dcf | 536 | Bool_t AliTPCseed::Update(const AliCluster *c, Double_t chisq, Int_t index) |
6c94f330 | 537 | { |
81e97e0d | 538 | //----------------------------------------------------------------- |
539 | // This function associates a cluster with this track. | |
540 | //----------------------------------------------------------------- | |
81e97e0d | 541 | Int_t n=GetNumberOfClusters(); |
70e20dcf | 542 | Int_t idx=GetClusterIndex(n); // save the current cluster index |
543 | ||
544 | AliCluster cl(*c); cl.SetSigmaY2(fErrorY2); cl.SetSigmaZ2(fErrorZ2); | |
ca521f6c | 545 | Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX(); |
546 | if (TMath::Abs(dx)>0){ | |
547 | Float_t ty = TMath::Tan(TMath::ASin(GetSnp())); | |
548 | Float_t dy = dx*ty; | |
549 | Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl(); | |
550 | cl.SetY(c->GetY()-dy); | |
551 | cl.SetZ(c->GetZ()-dz); | |
552 | } | |
553 | ||
70e20dcf | 554 | if (!AliTPCtrack::Update(&cl,chisq,index)) return kFALSE; |
e0e13b88 | 555 | |
556 | if (fCMeanSigmaY2p30<0){ | |
557 | fCMeanSigmaY2p30= c->GetSigmaY2(); //! current mean sigma Y2 - mean30% | |
c07cb486 | 558 | fCMeanSigmaZ2p30= c->GetSigmaZ2(); //! current mean sigma Z2 - mean30% |
559 | fCMeanSigmaY2p30R = 1; //! current mean sigma Y2 - mean5% | |
560 | fCMeanSigmaZ2p30R = 1; //! current mean sigma Z2 - mean5% | |
e0e13b88 | 561 | } |
562 | // | |
563 | fCMeanSigmaY2p30= 0.70*fCMeanSigmaY2p30 +0.30*c->GetSigmaY2(); | |
c07cb486 | 564 | fCMeanSigmaZ2p30= 0.70*fCMeanSigmaZ2p30 +0.30*c->GetSigmaZ2(); |
565 | if (fCurrentSigmaY2>0){ | |
566 | fCMeanSigmaY2p30R = 0.7*fCMeanSigmaY2p30R +0.3*c->GetSigmaY2()/fCurrentSigmaY2; | |
567 | fCMeanSigmaZ2p30R = 0.7*fCMeanSigmaZ2p30R +0.3*c->GetSigmaZ2()/fCurrentSigmaZ2; | |
568 | } | |
e0e13b88 | 569 | |
81e97e0d | 570 | |
70e20dcf | 571 | SetClusterIndex(n,idx); // restore the current cluster index |
6c94f330 | 572 | return kTRUE; |
81e97e0d | 573 | } |
574 | ||
575 | ||
576 | ||
577 | //_____________________________________________________________________________ | |
dc5cd41c | 578 | Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t /* onlyused */) { |
81e97e0d | 579 | //----------------------------------------------------------------- |
580 | // This funtion calculates dE/dX within the "low" and "up" cuts. | |
581 | //----------------------------------------------------------------- | |
2cadb5d1 | 582 | // CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal) |
83afd539 | 583 | AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters(); |
44a6a09e | 584 | |
83afd539 | 585 | Int_t row0 = param->GetNRowLow(); |
586 | Int_t row1 = row0+param->GetNRowUp1(); | |
587 | Int_t row2 = row1+param->GetNRowUp2(); | |
44a6a09e | 588 | const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam(); |
589 | Int_t useTot = 0; | |
590 | if (recoParam) useTot = (recoParam->GetUseTotCharge())? 0:1; | |
83afd539 | 591 | // |
592 | // | |
593 | // | |
2cadb5d1 | 594 | fDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 0); |
595 | fDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 0); | |
596 | fDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 0); | |
597 | fDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 0); | |
83afd539 | 598 | // |
2cadb5d1 | 599 | fSDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 1); |
600 | fSDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 1); | |
601 | fSDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 1); | |
602 | fSDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 1); | |
83afd539 | 603 | // |
2cadb5d1 | 604 | fNCDEDX[0] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 2)); |
605 | fNCDEDX[1] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,0 ,row0, 2)); | |
606 | fNCDEDX[2] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row0,row1, 2)); | |
607 | fNCDEDX[3] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row1,row2, 2)); | |
81e97e0d | 608 | |
83afd539 | 609 | SetdEdx(fDEDX[0]); |
610 | return fDEDX[0]; | |
81e97e0d | 611 | |
ba5e52fb | 612 | // return CookdEdxNorm(low,up,0,i1,i2,1,0,2); |
4cc7ba77 | 613 | |
614 | ||
ba5e52fb | 615 | // Float_t amp[200]; |
616 | // Float_t angular[200]; | |
617 | // Float_t weight[200]; | |
618 | // Int_t index[200]; | |
619 | // //Int_t nc = 0; | |
620 | // Float_t meanlog = 100.; | |
621 | ||
622 | // Float_t mean[4] = {0,0,0,0}; | |
623 | // Float_t sigma[4] = {1000,1000,1000,1000}; | |
624 | // Int_t nc[4] = {0,0,0,0}; | |
625 | // Float_t norm[4] = {1000,1000,1000,1000}; | |
626 | // // | |
627 | // // | |
628 | // fNShared =0; | |
629 | ||
630 | // Float_t gainGG = 1; | |
631 | // if (AliTPCcalibDB::Instance()->GetParameters()){ | |
632 | // gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000.; //relative gas gain | |
633 | // } | |
634 | ||
635 | ||
636 | // for (Int_t of =0; of<4; of++){ | |
637 | // for (Int_t i=of+i1;i<i2;i+=4) | |
638 | // { | |
639 | // Int_t clindex = fIndex[i]; | |
640 | // if (clindex<0||clindex&0x8000) continue; | |
641 | ||
642 | // //AliTPCTrackPoint * point = (AliTPCTrackPoint *) arr.At(i); | |
643 | // AliTPCTrackerPoint * point = GetTrackPoint(i); | |
644 | // //AliTPCTrackerPoint * pointm = GetTrackPoint(i-1); | |
645 | // //AliTPCTrackerPoint * pointp = 0; | |
646 | // //if (i<159) pointp = GetTrackPoint(i+1); | |
647 | ||
648 | // if (point==0) continue; | |
649 | // AliTPCclusterMI * cl = fClusterPointer[i]; | |
650 | // if (cl==0) continue; | |
651 | // if (onlyused && (!cl->IsUsed(10))) continue; | |
652 | // if (cl->IsUsed(11)) { | |
653 | // fNShared++; | |
654 | // continue; | |
655 | // } | |
656 | // Int_t type = cl->GetType(); | |
657 | // //if (point->fIsShared){ | |
658 | // // fNShared++; | |
659 | // // continue; | |
660 | // //} | |
661 | // //if (pointm) | |
662 | // // if (pointm->fIsShared) continue; | |
663 | // //if (pointp) | |
664 | // // if (pointp->fIsShared) continue; | |
665 | ||
666 | // if (type<0) continue; | |
667 | // //if (type>10) continue; | |
668 | // //if (point->GetErrY()==0) continue; | |
669 | // //if (point->GetErrZ()==0) continue; | |
670 | ||
671 | // //Float_t ddy = (point->GetY()-cl->GetY())/point->GetErrY(); | |
672 | // //Float_t ddz = (point->GetZ()-cl->GetZ())/point->GetErrZ(); | |
673 | // //if ((ddy*ddy+ddz*ddz)>10) continue; | |
674 | ||
675 | ||
676 | // // if (point->GetCPoint().GetMax()<5) continue; | |
677 | // if (cl->GetMax()<5) continue; | |
678 | // Float_t angley = point->GetAngleY(); | |
679 | // Float_t anglez = point->GetAngleZ(); | |
680 | ||
681 | // Float_t rsigmay2 = point->GetSigmaY(); | |
682 | // Float_t rsigmaz2 = point->GetSigmaZ(); | |
683 | // /* | |
684 | // Float_t ns = 1.; | |
685 | // if (pointm){ | |
686 | // rsigmay += pointm->GetTPoint().GetSigmaY(); | |
687 | // rsigmaz += pointm->GetTPoint().GetSigmaZ(); | |
688 | // ns+=1.; | |
689 | // } | |
690 | // if (pointp){ | |
691 | // rsigmay += pointp->GetTPoint().GetSigmaY(); | |
692 | // rsigmaz += pointp->GetTPoint().GetSigmaZ(); | |
693 | // ns+=1.; | |
694 | // } | |
695 | // rsigmay/=ns; | |
696 | // rsigmaz/=ns; | |
697 | // */ | |
698 | ||
699 | // Float_t rsigma = TMath::Sqrt(rsigmay2*rsigmaz2); | |
700 | ||
701 | // Float_t ampc = 0; // normalization to the number of electrons | |
702 | // if (i>64){ | |
703 | // // ampc = 1.*point->GetCPoint().GetMax(); | |
704 | // ampc = 1.*cl->GetMax(); | |
705 | // //ampc = 1.*point->GetCPoint().GetQ(); | |
706 | // // AliTPCClusterPoint & p = point->GetCPoint(); | |
707 | // // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.6)) - TMath::Abs(p.GetY()/0.6)+0.5); | |
708 | // // Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566; | |
709 | // //Float_t dz = | |
710 | // // TMath::Abs( Int_t(iz) - iz + 0.5); | |
711 | // //ampc *= 1.15*(1-0.3*dy); | |
712 | // //ampc *= 1.15*(1-0.3*dz); | |
713 | // // Float_t zfactor = (AliTPCReconstructor::GetCtgRange()-0.0004*TMath::Abs(point->GetCPoint().GetZ())); | |
714 | // //ampc *=zfactor; | |
715 | // } | |
716 | // else{ | |
717 | // //ampc = 1.0*point->GetCPoint().GetMax(); | |
718 | // ampc = 1.0*cl->GetMax(); | |
719 | // //ampc = 1.0*point->GetCPoint().GetQ(); | |
720 | // //AliTPCClusterPoint & p = point->GetCPoint(); | |
721 | // // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.4)) - TMath::Abs(p.GetY()/0.4)+0.5); | |
722 | // //Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566; | |
723 | // //Float_t dz = | |
724 | // // TMath::Abs( Int_t(iz) - iz + 0.5); | |
725 | ||
726 | // //ampc *= 1.15*(1-0.3*dy); | |
727 | // //ampc *= 1.15*(1-0.3*dz); | |
728 | // // Float_t zfactor = (1.02-0.000*TMath::Abs(point->GetCPoint().GetZ())); | |
729 | // //ampc *=zfactor; | |
730 | ||
731 | // } | |
732 | // ampc *= 2.0; // put mean value to channel 50 | |
733 | // //ampc *= 0.58; // put mean value to channel 50 | |
734 | // Float_t w = 1.; | |
735 | // // if (type>0) w = 1./(type/2.-0.5); | |
736 | // // Float_t z = TMath::Abs(cl->GetZ()); | |
737 | // if (i<64) { | |
738 | // ampc /= 0.6; | |
739 | // //ampc /= (1+0.0008*z); | |
740 | // } else | |
741 | // if (i>128){ | |
742 | // ampc /=1.5; | |
743 | // //ampc /= (1+0.0008*z); | |
744 | // }else{ | |
745 | // //ampc /= (1+0.0008*z); | |
746 | // } | |
81e97e0d | 747 | |
ba5e52fb | 748 | // if (type<0) { //amp at the border - lower weight |
749 | // // w*= 2.; | |
81e97e0d | 750 | |
ba5e52fb | 751 | // continue; |
752 | // } | |
753 | // if (rsigma>1.5) ampc/=1.3; // if big backround | |
754 | // amp[nc[of]] = ampc; | |
755 | // amp[nc[of]] /=gainGG; | |
756 | // angular[nc[of]] = TMath::Sqrt(1.+angley*angley+anglez*anglez); | |
757 | // weight[nc[of]] = w; | |
758 | // nc[of]++; | |
759 | // } | |
81e97e0d | 760 | |
ba5e52fb | 761 | // TMath::Sort(nc[of],amp,index,kFALSE); |
762 | // Float_t sumamp=0; | |
763 | // Float_t sumamp2=0; | |
764 | // Float_t sumw=0; | |
765 | // //meanlog = amp[index[Int_t(nc[of]*0.33)]]; | |
766 | // meanlog = 50; | |
767 | // for (Int_t i=int(nc[of]*low+0.5);i<int(nc[of]*up+0.5);i++){ | |
768 | // Float_t ampl = amp[index[i]]/angular[index[i]]; | |
769 | // ampl = meanlog*TMath::Log(1.+ampl/meanlog); | |
770 | // // | |
771 | // sumw += weight[index[i]]; | |
772 | // sumamp += weight[index[i]]*ampl; | |
773 | // sumamp2 += weight[index[i]]*ampl*ampl; | |
774 | // norm[of] += angular[index[i]]*weight[index[i]]; | |
775 | // } | |
776 | // if (sumw<1){ | |
777 | // SetdEdx(0); | |
778 | // } | |
779 | // else { | |
780 | // norm[of] /= sumw; | |
781 | // mean[of] = sumamp/sumw; | |
782 | // sigma[of] = sumamp2/sumw-mean[of]*mean[of]; | |
783 | // if (sigma[of]>0.1) | |
784 | // sigma[of] = TMath::Sqrt(sigma[of]); | |
785 | // else | |
786 | // sigma[of] = 1000; | |
81e97e0d | 787 | |
ba5e52fb | 788 | // mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog; |
789 | // //mean *=(1-0.02*(sigma/(mean*0.17)-1.)); | |
790 | // //mean *=(1-0.1*(norm-1.)); | |
791 | // } | |
792 | // } | |
793 | ||
794 | // Float_t dedx =0; | |
795 | // fSdEdx =0; | |
796 | // fMAngular =0; | |
797 | // // mean[0]*= (1-0.05*(sigma[0]/(0.01+mean[1]*0.18)-1)); | |
798 | // // mean[1]*= (1-0.05*(sigma[1]/(0.01+mean[0]*0.18)-1)); | |
81e97e0d | 799 | |
800 | ||
ba5e52fb | 801 | // // dedx = (mean[0]* TMath::Sqrt((1.+nc[0]))+ mean[1]* TMath::Sqrt((1.+nc[1])) )/ |
802 | // // ( TMath::Sqrt((1.+nc[0]))+TMath::Sqrt((1.+nc[1]))); | |
803 | ||
804 | // Int_t norm2 = 0; | |
805 | // Int_t norm3 = 0; | |
806 | // for (Int_t i =0;i<4;i++){ | |
807 | // if (nc[i]>2&&nc[i]<1000){ | |
808 | // dedx += mean[i] *nc[i]; | |
809 | // fSdEdx += sigma[i]*(nc[i]-2); | |
810 | // fMAngular += norm[i] *nc[i]; | |
811 | // norm2 += nc[i]; | |
812 | // norm3 += nc[i]-2; | |
813 | // } | |
814 | // fDEDX[i] = mean[i]; | |
815 | // fSDEDX[i] = sigma[i]; | |
816 | // fNCDEDX[i]= nc[i]; | |
817 | // } | |
818 | ||
819 | // if (norm3>0){ | |
820 | // dedx /=norm2; | |
821 | // fSdEdx /=norm3; | |
822 | // fMAngular/=norm2; | |
823 | // } | |
824 | // else{ | |
825 | // SetdEdx(0); | |
826 | // return 0; | |
827 | // } | |
828 | // // Float_t dedx1 =dedx; | |
829 | // /* | |
830 | // dedx =0; | |
831 | // for (Int_t i =0;i<4;i++){ | |
832 | // if (nc[i]>2&&nc[i]<1000){ | |
833 | // mean[i] = mean[i]*(1-0.12*(sigma[i]/(fSdEdx)-1.)); | |
834 | // dedx += mean[i] *nc[i]; | |
835 | // } | |
836 | // fDEDX[i] = mean[i]; | |
837 | // } | |
838 | // dedx /= norm2; | |
839 | // */ | |
81e97e0d | 840 | |
841 | ||
ba5e52fb | 842 | // SetdEdx(dedx); |
843 | // return dedx; | |
81e97e0d | 844 | } |
81e97e0d | 845 | |
846 | void AliTPCseed::CookPID() | |
847 | { | |
848 | // | |
849 | // cook PID information according dEdx | |
850 | // | |
851 | Double_t fRange = 10.; | |
852 | Double_t fRes = 0.1; | |
853 | Double_t fMIP = 47.; | |
854 | // | |
855 | Int_t ns=AliPID::kSPECIES; | |
856 | Double_t sumr =0; | |
857 | for (Int_t j=0; j<ns; j++) { | |
858 | Double_t mass=AliPID::ParticleMass(j); | |
6c94f330 | 859 | Double_t mom=GetP(); |
81e97e0d | 860 | Double_t dedx=fdEdx/fMIP; |
5731b051 | 861 | Double_t bethe=AliMathBase::BetheBlochAleph(mom/mass); |
81e97e0d | 862 | Double_t sigma=fRes*bethe; |
863 | if (sigma>0.001){ | |
864 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { | |
865 | fTPCr[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; | |
866 | sumr+=fTPCr[j]; | |
867 | continue; | |
868 | } | |
869 | fTPCr[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; | |
870 | sumr+=fTPCr[j]; | |
871 | } | |
872 | else{ | |
873 | fTPCr[j]=1.; | |
874 | sumr+=fTPCr[j]; | |
875 | } | |
876 | } | |
877 | for (Int_t j=0; j<ns; j++) { | |
878 | fTPCr[j]/=sumr; //normalize | |
879 | } | |
880 | } | |
881 | ||
6c94f330 | 882 | Double_t AliTPCseed::GetYat(Double_t xk) const { |
883 | //----------------------------------------------------------------- | |
884 | // This function calculates the Y-coordinate of a track at the plane x=xk. | |
885 | //----------------------------------------------------------------- | |
886 | if (TMath::Abs(GetSnp())>AliTPCReconstructor::GetMaxSnpTrack()) return 0.; //patch 01 jan 06 | |
60e55aee | 887 | Double_t c1=GetSnp(), r1=TMath::Sqrt((1.-c1)*(1.+c1)); |
6c94f330 | 888 | Double_t c2=c1+GetC()*(xk-GetX()); |
889 | if (TMath::Abs(c2)>AliTPCReconstructor::GetMaxSnpTrack()) return 0; | |
60e55aee | 890 | Double_t r2=TMath::Sqrt((1.-c2)*(1.+c2)); |
6c94f330 | 891 | return GetY() + (xk-GetX())*(c1+c2)/(r1+r2); |
892 | } | |
893 | ||
19b00333 | 894 | void AliTPCseed::SetClusterMapBit(int ibit, Bool_t state) |
895 | { | |
896 | fClusterMap[ibit] = state; | |
897 | } | |
898 | Bool_t AliTPCseed::GetClusterMapBit(int ibit) | |
899 | { | |
900 | return fClusterMap[ibit]; | |
901 | } | |
902 | void AliTPCseed::SetSharedMapBit(int ibit, Bool_t state) | |
903 | { | |
904 | fSharedMap[ibit] = state; | |
905 | } | |
906 | Bool_t AliTPCseed::GetSharedMapBit(int ibit) | |
907 | { | |
908 | return fSharedMap[ibit]; | |
909 | } | |
eb02f63a | 910 | |
911 | ||
0a65832b | 912 | |
913 | ||
914 | ||
8a92e133 | 915 | 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 | 916 | |
917 | // | |
918 | // calculates dedx using the cluster | |
919 | // low - up specify trunc mean range - default form 0-0.7 | |
8076baa0 | 920 | // type - 1 - max charge or 0- total charge in cluster |
921 | // //2- max no corr 3- total+ correction | |
0a65832b | 922 | // i1-i2 - the pad-row range used for calculation |
ba5e52fb | 923 | // shapeNorm - kTRUE -taken from OCDB |
924 | // | |
925 | // posNorm - usage of pos normalization | |
83afd539 | 926 | // padNorm - pad type normalization |
927 | // returnVal - 0 return mean | |
928 | // - 1 return RMS | |
929 | // - 2 return number of clusters | |
930 | // | |
0a65832b | 931 | // normalization parametrization taken from AliTPCClusterParam |
932 | // | |
ba5e52fb | 933 | AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam(); |
934 | AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters(); | |
935 | if (!parcl) return 0; | |
936 | if (!param) return 0; | |
83afd539 | 937 | Int_t row0 = param->GetNRowLow(); |
938 | Int_t row1 = row0+param->GetNRowUp1(); | |
939 | ||
0a65832b | 940 | Float_t amp[160]; |
941 | Int_t indexes[160]; | |
942 | Int_t ncl=0; | |
943 | // | |
944 | // | |
ba5e52fb | 945 | Float_t gainGG = 1; // gas gain factor -always enabled |
946 | Float_t gainPad = 1; // gain map - used always | |
83afd539 | 947 | Float_t corrShape = 1; // correction due angular effect, diffusion and electron attachment |
ba5e52fb | 948 | Float_t corrPos = 1; // local position correction - if posNorm enabled |
949 | Float_t corrPadType = 1; // pad type correction - if padNorm enabled | |
950 | Float_t corrNorm = 1; // normalization factor - set Q to channel 50 | |
951 | // | |
952 | // | |
953 | // | |
4cc7ba77 | 954 | if (AliTPCcalibDB::Instance()->GetParameters()){ |
ba5e52fb | 955 | gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain |
4cc7ba77 | 956 | } |
957 | ||
0a65832b | 958 | const Float_t ktany = TMath::Tan(TMath::DegToRad()*10); |
4cc7ba77 | 959 | const Float_t kedgey =3.; |
0a65832b | 960 | // |
7cd8ac3f | 961 | // |
0a65832b | 962 | for (Int_t irow=i1; irow<i2; irow++){ |
963 | AliTPCclusterMI* cluster = GetClusterPointer(irow); | |
964 | if (!cluster) continue; | |
965 | if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster | |
8076baa0 | 966 | Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ(); |
ba5e52fb | 967 | Int_t ipad= 0; |
83afd539 | 968 | if (irow>=row0) ipad=1; |
969 | if (irow>=row1) ipad=2; | |
ba5e52fb | 970 | // |
971 | // | |
972 | // | |
973 | AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor(); | |
974 | if (gainMap) { | |
975 | // | |
976 | // Get gainPad - pad by pad calibration | |
977 | // | |
d6920632 | 978 | Float_t factor = 1; |
979 | AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector()); | |
83afd539 | 980 | if (irow < row0) { // IROC |
ba5e52fb | 981 | factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad())); |
d6920632 | 982 | } else { // OROC |
83afd539 | 983 | factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad())); |
d6920632 | 984 | } |
ba5e52fb | 985 | if (factor>0.5) gainPad=factor; |
7cd8ac3f | 986 | } |
ba5e52fb | 987 | // |
988 | //do position and angular normalization | |
989 | // | |
990 | if (shapeNorm){ | |
991 | if (type<=1){ | |
992 | // | |
993 | AliTPCTrackerPoint * point = GetTrackPoint(irow); | |
994 | Float_t ty = TMath::Abs(point->GetAngleY()); | |
83afd539 | 995 | Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty)); |
ba5e52fb | 996 | |
997 | Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.; | |
998 | corrShape = parcl->Qnorm(ipad,type,dr,ty,tz); | |
999 | } | |
0a65832b | 1000 | } |
ba5e52fb | 1001 | |
8a92e133 | 1002 | if (posNorm>0){ |
8e1dcdda | 1003 | // |
ba5e52fb | 1004 | // Do position normalization - relative distance to |
1005 | // center of pad- time bin | |
1006 | // Work in progress | |
022a2383 | 1007 | // corrPos = parcl->QnormPos(ipad,type, cluster->GetPad(), |
1008 | // cluster->GetTimeBin(), cluster->GetZ(), | |
1009 | // cluster->GetSigmaY2(),cluster->GetSigmaZ2(), | |
1010 | // cluster->GetMax(),cluster->GetQ()); | |
8a92e133 | 1011 | // scaled response function |
1012 | Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector()); | |
1013 | Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth(); | |
1014 | // | |
1015 | ||
022a2383 | 1016 | AliTPCTrackerPoint * point = GetTrackPoint(irow); |
1017 | Float_t ty = TMath::Abs(point->GetAngleY()); | |
1018 | Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty)); | |
1019 | ||
1020 | if (type==1) corrPos = | |
1021 | parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
8a92e133 | 1022 | cluster->GetTimeBin(),ty,tz,yres0,zres0,0.4); |
022a2383 | 1023 | if (type==0) corrPos = |
1024 | parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
8a92e133 | 1025 | cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,0.4); |
1026 | if (posNorm==3){ | |
1027 | Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.; | |
1028 | Double_t signtgl = (cluster->GetZ()*point->GetAngleZ()>0)? 1:-1; | |
1029 | Double_t p2 = TMath::Abs(TMath::Sin(TMath::ATan(ty))); | |
1030 | Float_t corrHis = parcl->QnormHis(ipad,type,dr,p2,TMath::Abs(point->GetAngleZ())*signtgl); | |
1031 | if (corrHis>0) corrPos*=corrHis; | |
1032 | } | |
1033 | ||
8e1dcdda | 1034 | } |
1035 | ||
ba5e52fb | 1036 | if (padNorm==1){ |
1037 | //taken from OCDB | |
798017c7 | 1038 | if (type==0 && parcl->QpadTnorm()) corrPadType = (*parcl->QpadTnorm())[ipad]; |
1039 | if (type==1 && parcl->QpadMnorm()) corrPadType = (*parcl->QpadMnorm())[ipad]; | |
022a2383 | 1040 | |
2fc9608f | 1041 | } |
ba5e52fb | 1042 | if (padNorm==2){ |
1043 | corrPadType =param->GetPadPitchLength(cluster->GetDetector(),cluster->GetRow()); | |
1044 | //use hardwired - temp fix | |
1045 | if (type==0) corrNorm=3.; | |
1046 | if (type==1) corrNorm=1.; | |
1047 | } | |
1048 | // | |
1049 | amp[ncl]=charge; | |
1050 | amp[ncl]/=gainGG; | |
1051 | amp[ncl]/=gainPad; | |
1052 | amp[ncl]/=corrShape; | |
1053 | amp[ncl]/=corrPadType; | |
1054 | amp[ncl]/=corrPos; | |
1055 | amp[ncl]/=corrNorm; | |
1056 | // | |
0a65832b | 1057 | ncl++; |
1058 | } | |
8076baa0 | 1059 | |
0a65832b | 1060 | if (type>3) return ncl; |
1061 | TMath::Sort(ncl,amp, indexes, kFALSE); | |
1062 | ||
8076baa0 | 1063 | if (ncl<10) return 0; |
0a65832b | 1064 | |
1065 | Float_t suma=0; | |
83afd539 | 1066 | Float_t suma2=0; |
0a65832b | 1067 | Float_t sumn=0; |
1068 | Int_t icl0=TMath::Nint(ncl*low); | |
1069 | Int_t icl1=TMath::Nint(ncl*up); | |
1070 | for (Int_t icl=icl0; icl<icl1;icl++){ | |
1071 | suma+=amp[indexes[icl]]; | |
83afd539 | 1072 | suma2+=amp[indexes[icl]]*amp[indexes[icl]]; |
0a65832b | 1073 | sumn++; |
1074 | } | |
83afd539 | 1075 | Float_t mean =suma/sumn; |
1076 | Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean)); | |
3af3fbc4 | 1077 | // |
1078 | // do time-dependent correction for pressure and temperature variations | |
1079 | UInt_t runNumber = 1; | |
1080 | Float_t corrTimeGain = 1; | |
1081 | AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform(); | |
e5e80ff9 | 1082 | const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam(); |
1083 | if (trans && recoParam->GetUseGainCorrectionTime()>0) { | |
3af3fbc4 | 1084 | runNumber = trans->GetCurrentRunNumber(); |
e5e80ff9 | 1085 | //AliTPCcalibDB::Instance()->SetRun(runNumber); |
a2c3785e | 1086 | TObjArray * timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber); |
3af3fbc4 | 1087 | if (timeGainSplines) { |
1088 | UInt_t time = trans->GetCurrentTimeStamp(); | |
1089 | AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0); | |
1090 | AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1); | |
1091 | if (fitMIP) { | |
108a67db | 1092 | corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time);/*fitMIP->Eval(time);*/ |
3af3fbc4 | 1093 | } else { |
108a67db | 1094 | if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time);/*fitFPcosmic->Eval(time);*/ |
3af3fbc4 | 1095 | } |
1096 | } | |
1097 | } | |
1098 | mean /= corrTimeGain; | |
1099 | rms /= corrTimeGain; | |
1100 | // | |
83afd539 | 1101 | if (returnVal==1) return rms; |
8a92e133 | 1102 | if (returnVal==2) return ncl; |
1103 | return mean; | |
1104 | } | |
1105 | ||
1106 | Float_t AliTPCseed::CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal){ | |
1107 | ||
1108 | // | |
1109 | // calculates dedx using the cluster | |
1110 | // low - up specify trunc mean range - default form 0-0.7 | |
1111 | // type - 1 - max charge or 0- total charge in cluster | |
1112 | // //2- max no corr 3- total+ correction | |
1113 | // i1-i2 - the pad-row range used for calculation | |
1114 | // | |
1115 | // posNorm - usage of pos normalization | |
1116 | // returnVal - 0 return mean | |
1117 | // - 1 return RMS | |
1118 | // - 2 return number of clusters | |
1119 | // | |
1120 | // normalization parametrization taken from AliTPCClusterParam | |
1121 | // | |
1122 | AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1123 | AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters(); | |
1124 | if (!parcl) return 0; | |
1125 | if (!param) return 0; | |
1126 | Int_t row0 = param->GetNRowLow(); | |
1127 | Int_t row1 = row0+param->GetNRowUp1(); | |
1128 | ||
1129 | Float_t amp[160]; | |
1130 | Int_t indexes[160]; | |
1131 | Int_t ncl=0; | |
1132 | // | |
1133 | // | |
1134 | Float_t gainGG = 1; // gas gain factor -always enabled | |
1135 | Float_t gainPad = 1; // gain map - used always | |
1136 | Float_t corrPos = 1; // local position correction - if posNorm enabled | |
0cd8bb8d | 1137 | |
8a92e133 | 1138 | // |
1139 | // | |
1140 | // | |
1141 | if (AliTPCcalibDB::Instance()->GetParameters()){ | |
1142 | gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain | |
1143 | } | |
1144 | ||
1145 | const Float_t ktany = TMath::Tan(TMath::DegToRad()*10); | |
1146 | const Float_t kedgey =3.; | |
1147 | // | |
1148 | // | |
1149 | for (Int_t irow=i1; irow<i2; irow++){ | |
1150 | AliTPCclusterMI* cluster = GetClusterPointer(irow); | |
1151 | if (!cluster) continue; | |
1152 | if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster | |
1153 | Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ(); | |
1154 | Int_t ipad= 0; | |
1155 | if (irow>=row0) ipad=1; | |
1156 | if (irow>=row1) ipad=2; | |
1157 | // | |
1158 | // | |
1159 | // | |
1160 | AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor(); | |
1161 | if (gainMap) { | |
1162 | // | |
1163 | // Get gainPad - pad by pad calibration | |
1164 | // | |
1165 | Float_t factor = 1; | |
1166 | AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector()); | |
1167 | if (irow < row0) { // IROC | |
1168 | factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad())); | |
1169 | } else { // OROC | |
1170 | factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad())); | |
1171 | } | |
1172 | if (factor>0.5) gainPad=factor; | |
1173 | } | |
1174 | ||
1175 | // | |
1176 | // Do position normalization - relative distance to | |
1177 | // center of pad- time bin | |
1178 | ||
1179 | AliTPCTrackerPoint * point = GetTrackPoint(irow); | |
1180 | Float_t ty = TMath::Abs(point->GetAngleY()); | |
1181 | Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty)); | |
1182 | Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector()); | |
1183 | Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth(); | |
1184 | ||
1185 | yres0 *=parcl->GetQnormCorr(ipad, type,0); | |
1186 | zres0 *=parcl->GetQnormCorr(ipad, type,1); | |
1187 | Float_t effLength=parcl->GetQnormCorr(ipad, type,4)*0.5; | |
1188 | Float_t effDiff =(parcl->GetQnormCorr(ipad, type,2)+parcl->GetQnormCorr(ipad, type,3))*0.5; | |
1189 | // | |
1190 | if (type==1) { | |
1191 | corrPos = parcl->GetQnormCorr(ipad, type,5)* | |
1192 | parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
1193 | cluster->GetTimeBin(),ty,tz,yres0,zres0,effLength,effDiff); | |
1194 | Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.); | |
1195 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm); | |
1196 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty); | |
1197 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz); | |
1198 | // | |
1199 | } | |
1200 | if (type==0) { | |
1201 | corrPos = parcl->GetQnormCorr(ipad, type,5)* | |
1202 | parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(), | |
1203 | cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,effLength,effDiff); | |
1204 | ||
1205 | Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.); | |
1206 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm); | |
1207 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty); | |
1208 | corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz); | |
1209 | // | |
1210 | } | |
1211 | ||
1212 | // | |
1213 | amp[ncl]=charge; | |
1214 | amp[ncl]/=gainGG; | |
1215 | amp[ncl]/=gainPad; | |
1216 | amp[ncl]/=corrPos; | |
1217 | // | |
1218 | ncl++; | |
1219 | } | |
1220 | ||
1221 | if (type>3) return ncl; | |
1222 | TMath::Sort(ncl,amp, indexes, kFALSE); | |
1223 | ||
1224 | if (ncl<10) return 0; | |
1225 | ||
1226 | Float_t suma=0; | |
1227 | Float_t suma2=0; | |
1228 | Float_t sumn=0; | |
1229 | Int_t icl0=TMath::Nint(ncl*low); | |
1230 | Int_t icl1=TMath::Nint(ncl*up); | |
1231 | for (Int_t icl=icl0; icl<icl1;icl++){ | |
1232 | suma+=amp[indexes[icl]]; | |
1233 | suma2+=amp[indexes[icl]]*amp[indexes[icl]]; | |
1234 | sumn++; | |
1235 | } | |
1236 | Float_t mean =suma/sumn; | |
1237 | Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean)); | |
3af3fbc4 | 1238 | // |
1239 | // do time-dependent correction for pressure and temperature variations | |
1240 | UInt_t runNumber = 1; | |
1241 | Float_t corrTimeGain = 1; | |
1242 | AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform(); | |
e5e80ff9 | 1243 | const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam(); |
1244 | if (trans && recoParam->GetUseGainCorrectionTime()>0) { | |
3af3fbc4 | 1245 | runNumber = trans->GetCurrentRunNumber(); |
a2c3785e | 1246 | //AliTPCcalibDB::Instance()->SetRun(runNumber); |
1247 | TObjArray * timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber); | |
3af3fbc4 | 1248 | if (timeGainSplines) { |
1249 | UInt_t time = trans->GetCurrentTimeStamp(); | |
1250 | AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0); | |
1251 | AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1); | |
1252 | if (fitMIP) { | |
1253 | corrTimeGain = fitMIP->Eval(time); | |
1254 | } else { | |
1255 | if (fitFPcosmic) corrTimeGain = fitFPcosmic->Eval(time); // This value describes the ratio FP-to-MIP, hardwired for the moment | |
1256 | } | |
1257 | } | |
1258 | } | |
1259 | mean /= corrTimeGain; | |
1260 | rms /= corrTimeGain; | |
1261 | // | |
8a92e133 | 1262 | if (returnVal==1) return rms; |
83afd539 | 1263 | if (returnVal==2) return ncl; |
1264 | return mean; | |
0a65832b | 1265 | } |
1266 | ||
83afd539 | 1267 | |
0a65832b | 1268 | |
1269 | ||
eb02f63a | 1270 | Float_t AliTPCseed::CookShape(Int_t type){ |
1271 | // | |
1272 | // | |
1273 | // | |
1274 | //----------------------------------------------------------------- | |
1275 | // This funtion calculates dE/dX within the "low" and "up" cuts. | |
1276 | //----------------------------------------------------------------- | |
1277 | Float_t means=0; | |
1278 | Float_t meanc=0; | |
1279 | for (Int_t i =0; i<160;i++) { | |
1280 | AliTPCTrackerPoint * point = GetTrackPoint(i); | |
1281 | if (point==0) continue; | |
1282 | ||
1283 | AliTPCclusterMI * cl = fClusterPointer[i]; | |
1284 | if (cl==0) continue; | |
1285 | ||
1286 | Float_t rsigmay = TMath::Sqrt(point->GetSigmaY()); | |
1287 | Float_t rsigmaz = TMath::Sqrt(point->GetSigmaZ()); | |
1288 | Float_t rsigma = (rsigmay+rsigmaz)*0.5; | |
1289 | if (type==0) means+=rsigma; | |
1290 | if (type==1) means+=rsigmay; | |
1291 | if (type==2) means+=rsigmaz; | |
1292 | meanc++; | |
1293 | } | |
1294 | Float_t mean = (meanc>0)? means/meanc:0; | |
1295 | return mean; | |
1296 | } | |
87e92a27 | 1297 | |
1298 | ||
1299 | ||
1300 | Int_t AliTPCseed::RefitTrack(AliTPCseed *seed, AliExternalTrackParam * parin, AliExternalTrackParam * parout){ | |
1301 | // | |
1302 | // Refit the track | |
1303 | // return value - number of used clusters | |
1304 | // | |
1305 | // | |
1306 | const Int_t kMinNcl =10; | |
1307 | AliTPCseed *track=new AliTPCseed(*seed); | |
1308 | Int_t sector=-1; | |
1309 | // reset covariance | |
1310 | // | |
1311 | Double_t covar[15]; | |
1312 | for (Int_t i=0;i<15;i++) covar[i]=0; | |
1313 | covar[0]=10.*10.; | |
1314 | covar[2]=10.*10.; | |
1315 | covar[5]=10.*10./(64.*64.); | |
1316 | covar[9]=10.*10./(64.*64.); | |
1317 | covar[14]=1*1; | |
1318 | // | |
1319 | ||
1320 | Float_t xmin=1000, xmax=-10000; | |
1321 | Int_t imin=158, imax=0; | |
1322 | for (Int_t i=0;i<160;i++) { | |
1323 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1324 | if (!c) continue; | |
1325 | if (sector<0) sector = c->GetDetector(); | |
1326 | if (c->GetX()<xmin) xmin=c->GetX(); | |
1327 | if (c->GetX()>xmax) xmax=c->GetX(); | |
1328 | if (i<imin) imin=i; | |
1329 | if (i>imax) imax=i; | |
1330 | } | |
1331 | if(imax-imin<kMinNcl) { | |
1332 | delete track; | |
1333 | return 0 ; | |
1334 | } | |
1335 | // Not succes to rotate | |
1336 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1337 | delete track; | |
1338 | return 0; | |
1339 | } | |
1340 | // | |
1341 | // | |
1342 | // fit from inner to outer row | |
1343 | // | |
1344 | AliExternalTrackParam paramIn; | |
1345 | AliExternalTrackParam paramOut; | |
1346 | Bool_t isOK=kTRUE; | |
be34cb88 | 1347 | Int_t ncl=0; |
87e92a27 | 1348 | // |
1349 | // | |
1350 | // | |
1351 | for (Int_t i=imin; i<=imax; i++){ | |
1352 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1353 | if (!c) continue; | |
1354 | // if (RejectCluster(c,track)) continue; | |
be34cb88 | 1355 | sector = (c->GetDetector()%18); |
1356 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1357 | //continue; | |
1358 | } | |
87e92a27 | 1359 | Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()}; |
1360 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
1361 | if (!track->PropagateTo(r[0])) { | |
1362 | isOK=kFALSE; | |
87e92a27 | 1363 | } |
1364 | if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE; | |
1365 | } | |
1366 | if (!isOK) { delete track; return 0;} | |
1367 | track->AddCovariance(covar); | |
1368 | // | |
1369 | // | |
1370 | // | |
1371 | for (Int_t i=imax; i>=imin; i--){ | |
1372 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1373 | if (!c) continue; | |
1374 | //if (RejectCluster(c,track)) continue; | |
be34cb88 | 1375 | sector = (c->GetDetector()%18); |
1376 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1377 | //continue; | |
1378 | } | |
87e92a27 | 1379 | Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()}; |
1380 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
1381 | if (!track->PropagateTo(r[0])) { | |
1382 | isOK=kFALSE; | |
87e92a27 | 1383 | } |
1384 | if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE; | |
1385 | } | |
be34cb88 | 1386 | //if (!isOK) { delete track; return 0;} |
87e92a27 | 1387 | paramIn = *track; |
1388 | track->AddCovariance(covar); | |
1389 | // | |
1390 | // | |
1391 | for (Int_t i=imin; i<=imax; i++){ | |
1392 | AliTPCclusterMI *c=track->GetClusterPointer(i); | |
1393 | if (!c) continue; | |
be34cb88 | 1394 | sector = (c->GetDetector()%18); |
1395 | if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) { | |
1396 | //continue; | |
1397 | } | |
1398 | ncl++; | |
87e92a27 | 1399 | //if (RejectCluster(c,track)) continue; |
1400 | Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()}; | |
1401 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
1402 | if (!track->PropagateTo(r[0])) { | |
1403 | isOK=kFALSE; | |
87e92a27 | 1404 | } |
1405 | if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE; | |
1406 | } | |
be34cb88 | 1407 | //if (!isOK) { delete track; return 0;} |
87e92a27 | 1408 | paramOut=*track; |
87e92a27 | 1409 | // |
1410 | // | |
1411 | // | |
1412 | if (parin) (*parin)=paramIn; | |
1413 | if (parout) (*parout)=paramOut; | |
6e23caff | 1414 | delete track; |
be34cb88 | 1415 | return ncl; |
87e92a27 | 1416 | } |
1417 | ||
1418 | ||
1419 | ||
1420 | Bool_t AliTPCseed::RefitTrack(AliTPCseed* /*seed*/, Bool_t /*out*/){ | |
1421 | // | |
1422 | // | |
1423 | // | |
1424 | return kFALSE; | |
1425 | } | |
3247d397 | 1426 | |
1427 | ||
1428 | ||
1429 | ||
1430 | ||
1431 | ||
1432 | void AliTPCseed::GetError(AliTPCclusterMI* cluster, AliExternalTrackParam * param, | |
1433 | Double_t& erry, Double_t &errz) | |
1434 | { | |
1435 | // | |
1436 | // Get cluster error at given position | |
1437 | // | |
1438 | AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1439 | Double_t tany,tanz; | |
1440 | Double_t snp1=param->GetSnp(); | |
60e55aee | 1441 | tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1442 | // |
1443 | Double_t tgl1=param->GetTgl(); | |
60e55aee | 1444 | tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1445 | // |
1446 | Int_t padSize = 0; // short pads | |
1447 | if (cluster->GetDetector() >= 36) { | |
1448 | padSize = 1; // medium pads | |
1449 | if (cluster->GetRow() > 63) padSize = 2; // long pads | |
1450 | } | |
1451 | ||
1452 | erry = clusterParam->GetError0Par( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany) ); | |
1453 | errz = clusterParam->GetError0Par( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) ); | |
1454 | } | |
1455 | ||
1456 | ||
1457 | void AliTPCseed::GetShape(AliTPCclusterMI* cluster, AliExternalTrackParam * param, | |
1458 | Double_t& rmsy, Double_t &rmsz) | |
1459 | { | |
1460 | // | |
1461 | // Get cluster error at given position | |
1462 | // | |
1463 | AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1464 | Double_t tany,tanz; | |
1465 | Double_t snp1=param->GetSnp(); | |
60e55aee | 1466 | tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1467 | // |
1468 | Double_t tgl1=param->GetTgl(); | |
60e55aee | 1469 | tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1)); |
3247d397 | 1470 | // |
1471 | Int_t padSize = 0; // short pads | |
1472 | if (cluster->GetDetector() >= 36) { | |
1473 | padSize = 1; // medium pads | |
1474 | if (cluster->GetRow() > 63) padSize = 2; // long pads | |
1475 | } | |
1476 | ||
1477 | rmsy = clusterParam->GetRMSQ( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany), TMath::Abs(cluster->GetMax()) ); | |
1478 | rmsz = clusterParam->GetRMSQ( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) ,TMath::Abs(cluster->GetMax())); | |
1479 | } | |
ba5e52fb | 1480 | |
1481 | ||
1482 | ||
1483 | Double_t AliTPCseed::GetQCorrGeom(Float_t ty, Float_t tz){ | |
1484 | //Geoetrical | |
1485 | //ty - tangent in local y direction | |
1486 | //tz - tangent | |
1487 | // | |
1488 | Float_t norm=TMath::Sqrt(1+ty*ty+tz*tz); | |
1489 | return norm; | |
1490 | } | |
1491 | ||
83afd539 | 1492 | 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 | 1493 | // |
1494 | // Q normalization | |
1495 | // | |
1496 | // return value = Q Normalization factor | |
1497 | // Normalization - 1 - shape factor part for full drift | |
1498 | // 1 - electron attachment for 0 drift | |
1499 | ||
1500 | // Input parameters: | |
1501 | // | |
1502 | // ipad - 0 short pad | |
1503 | // 1 medium pad | |
1504 | // 2 long pad | |
1505 | // | |
1506 | // type - 0 qmax | |
1507 | // - 1 qtot | |
1508 | // | |
1509 | //z - z position (-250,250 cm) | |
1510 | //ty - tangent in local y direction | |
1511 | //tz - tangent | |
1512 | // | |
1513 | ||
1514 | AliTPCClusterParam * paramCl = AliTPCcalibDB::Instance()->GetClusterParam(); | |
1515 | AliTPCParam * paramTPC = AliTPCcalibDB::Instance()->GetParameters(); | |
1516 | ||
1517 | if (!paramCl) return 1; | |
1518 | // | |
1519 | Double_t dr = 250.-TMath::Abs(z); | |
1520 | Double_t sy = paramCl->GetRMS0( 0,ipad, dr, TMath::Abs(ty)); | |
1521 | Double_t sy0= paramCl->GetRMS0(0,ipad, 250, 0); | |
1522 | Double_t sz = paramCl->GetRMS0( 1,ipad, dr, TMath::Abs(tz)); | |
1523 | Double_t sz0= paramCl->GetRMS0(1,ipad, 250, 0); | |
1524 | ||
1525 | Double_t sfactorMax = TMath::Sqrt(sy0*sz0/(sy*sz)); | |
1526 | ||
1527 | ||
1528 | Double_t dt = 1000000*(dr/paramTPC->GetDriftV()); //time in microsecond | |
1529 | Double_t attProb = TMath::Exp(-paramTPC->GetAttCoef()*paramTPC->GetOxyCont()*dt); | |
1530 | // | |
1531 | // | |
1532 | if (type==0) return sfactorMax*attProb; | |
1533 | ||
1534 | return attProb; | |
1535 | ||
1536 | ||
1537 | } | |
1538 |