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9dcfce73 | 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 | // Component for redoing the reconstruction from the clusters and tracks | |
20 | // | |
21 | // The new calibration data used | |
22 | // | |
23 | // In reality it overwrites the content of the ESD | |
24 | // | |
25 | ||
3bf5c7a6 | 26 | /* |
27 | ||
28 | gSystem->Load("libANALYSIS"); | |
29 | gSystem->Load("libTPCcalib"); | |
30 | // | |
31 | gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros"); | |
32 | gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+") | |
33 | AliXRDPROOFtoolkit tool; | |
11c7a854 | 34 | TChain * chainCl = tool.MakeChain("calib.txt","Clusters",0,1); |
35 | chainCl->Lookup(); | |
36 | TChain * chainTr = tool.MakeChain("calib.txt","Tracks",0,1); | |
37 | chainTr->Lookup(); | |
3bf5c7a6 | 38 | |
39 | ||
40 | ||
41 | */ | |
42 | ||
43 | ||
44 | ||
9dcfce73 | 45 | // marian.ivanov@cern.ch |
46 | // | |
47 | #include "AliTPCcalibCalib.h" | |
48 | #include "TSystem.h" | |
49 | #include "TFile.h" | |
50 | #include "TTreeStream.h" | |
51 | #include "AliLog.h" | |
52 | #include "TTimeStamp.h" | |
53 | #include "AliESDEvent.h" | |
54 | #include "AliESDfriend.h" | |
55 | #include "AliESDtrack.h" | |
56 | #include "AliTracker.h" | |
11c7a854 | 57 | #include "AliTPCClusterParam.h" |
9dcfce73 | 58 | |
59 | #include "AliTPCcalibDB.h" | |
60 | #include "AliTPCTransform.h" | |
61 | #include "AliTPCclusterMI.h" | |
62 | #include "AliTPCseed.h" | |
15e48021 | 63 | #include "AliTPCPointCorrection.h" |
9dcfce73 | 64 | |
65 | ClassImp(AliTPCcalibCalib) | |
66 | ||
67 | AliTPCcalibCalib::AliTPCcalibCalib(): | |
68 | AliTPCcalibBase() | |
69 | { | |
70 | // | |
71 | // Constructor | |
72 | // | |
73 | } | |
74 | ||
75 | ||
76 | AliTPCcalibCalib::AliTPCcalibCalib(const Text_t *name, const Text_t *title) | |
77 | :AliTPCcalibBase() | |
78 | { | |
79 | SetName(name); | |
80 | SetTitle(title); | |
81 | } | |
82 | ||
83 | ||
84 | AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib): | |
85 | AliTPCcalibBase(calib) | |
86 | { | |
87 | // | |
88 | // copy constructor | |
89 | // | |
90 | } | |
91 | ||
92 | AliTPCcalibCalib &AliTPCcalibCalib::operator=(const AliTPCcalibCalib&calib){ | |
93 | // | |
94 | // | |
95 | // | |
96 | ((AliTPCcalibBase *)this)->operator=(calib); | |
97 | return *this; | |
98 | } | |
99 | ||
100 | ||
101 | AliTPCcalibCalib::~AliTPCcalibCalib() { | |
102 | // | |
103 | // destructor | |
104 | // | |
105 | } | |
106 | ||
107 | ||
108 | void AliTPCcalibCalib::Process(AliESDEvent *event){ | |
109 | // | |
110 | // | |
111 | // | |
112 | if (!event) { | |
113 | return; | |
114 | } | |
115 | AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend")); | |
116 | if (!ESDfriend) { | |
117 | return; | |
118 | } | |
119 | ||
120 | if (GetDebugLevel()>20) printf("Hallo world: Im here\n"); | |
121 | Int_t ntracks=event->GetNumberOfTracks(); | |
91350f5b | 122 | //AliTPCcalibDB::Instance()->SetExBField(fMagF); |
5c3e0d17 | 123 | |
9dcfce73 | 124 | // |
125 | // | |
126 | // | |
127 | ||
128 | for (Int_t i=0;i<ntracks;++i) { | |
129 | AliESDtrack *track = event->GetTrack(i); | |
130 | const AliExternalTrackParam * trackIn = track->GetInnerParam(); | |
131 | const AliExternalTrackParam * trackOut = track->GetOuterParam(); | |
132 | if (!trackIn) continue; | |
133 | if (!trackOut) continue; | |
134 | ||
135 | AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i); | |
136 | TObject *calibObject; | |
137 | AliTPCseed *seed = 0; | |
138 | for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) { | |
139 | if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break; | |
140 | } | |
141 | if (!seed) continue; | |
142 | RefitTrack(track, seed); | |
143 | } | |
144 | return; | |
145 | } | |
146 | ||
147 | Bool_t AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){ | |
148 | // | |
149 | // Refit track | |
150 | // | |
151 | ||
15e48021 | 152 | // |
153 | // 0 - Setup transform object | |
154 | // | |
155 | AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ; | |
156 | transform->SetCurrentRun(fRun); | |
157 | transform->SetCurrentTimeStamp((UInt_t)fTime); | |
9dcfce73 | 158 | // |
159 | // First apply calibration | |
160 | // | |
15e48021 | 161 | AliTPCPointCorrection * corr = AliTPCPointCorrection::Instance(); |
9dcfce73 | 162 | for (Int_t irow=0;irow<159;irow++) { |
163 | AliTPCclusterMI *cluster=seed->GetClusterPointer(irow); | |
164 | if (!cluster) continue; | |
165 | AliTPCclusterMI cl0(*cluster); | |
166 | Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()}; | |
167 | Int_t i[1]={cluster->GetDetector()}; | |
168 | transform->Transform(x,i,0,1); | |
11c7a854 | 169 | // |
170 | // get position correction | |
171 | // | |
172 | Int_t ipad=0; | |
173 | if (cluster->GetDetector()>35) ipad=1; | |
174 | Float_t dy =AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax()); | |
175 | Float_t dz =AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax()); | |
176 | //x[1]-=dy; | |
177 | //x[2]-=dz; | |
15e48021 | 178 | // |
179 | // Apply sector alignment | |
180 | // | |
181 | Double_t dxq = AliTPCPointCorrection::SGetCorrectionSector(0,cluster->GetDetector()%36,cluster->GetX(), | |
182 | cluster->GetY(),cluster->GetZ()); | |
183 | Double_t dyq = AliTPCPointCorrection::SGetCorrectionSector(1,cluster->GetDetector()%36,cluster->GetX(), | |
184 | cluster->GetY(),cluster->GetZ()); | |
185 | Double_t dzq = AliTPCPointCorrection::SGetCorrectionSector(2,cluster->GetDetector()%36,cluster->GetX(), | |
186 | cluster->GetY(),cluster->GetZ()); | |
187 | if (kTRUE){ | |
188 | x[0]-=dxq; | |
189 | x[1]-=dyq; | |
190 | x[2]-=dzq; | |
191 | } | |
192 | // | |
193 | // Apply r-phi correction - To be done on track level- knowing the track angle !!! | |
194 | // | |
195 | Double_t corrclY = | |
196 | corr->RPhiCOGCorrection(cluster->GetDetector(),cluster->GetRow(), cluster->GetPad(), | |
197 | cluster->GetY(),cluster->GetY(), cluster->GetZ(), 0., cluster->GetMax(),2.5); | |
198 | // R correction | |
199 | Double_t corrR = corr->CorrectionOutR0(kFALSE,kFALSE,cluster->GetX(),cluster->GetY(),cluster->GetZ(),cluster->GetDetector()); | |
200 | ||
201 | if (kTRUE){ | |
202 | if (cluster->GetY()>0) x[1]+=corrclY; // rphi correction | |
203 | if (cluster->GetY()<0) x[1]-=corrclY; // rphi correction | |
204 | x[0]+=corrR; // radial correction | |
205 | } | |
11c7a854 | 206 | |
15e48021 | 207 | // |
208 | // | |
9dcfce73 | 209 | // |
210 | cluster->SetX(x[0]); | |
211 | cluster->SetY(x[1]); | |
212 | cluster->SetZ(x[2]); | |
213 | if (fStreamLevel>2){ | |
214 | TTreeSRedirector *cstream = GetDebugStreamer(); | |
215 | if (cstream){ | |
216 | (*cstream)<<"Clusters"<< | |
108953e9 | 217 | "run="<<fRun<< // run number |
218 | "event="<<fEvent<< // event number | |
219 | "time="<<fTime<< // time stamp of event | |
220 | "trigger="<<fTrigger<< // trigger | |
15e48021 | 221 | "triggerClass="<<&fTriggerClass<< // trigger |
108953e9 | 222 | "mag="<<fMagF<< // magnetic field |
9dcfce73 | 223 | "cl0.="<<&cl0<< |
224 | "cl.="<<cluster<< | |
11c7a854 | 225 | "cy="<<dy<< |
226 | "cz="<<dz<< | |
fe8454d9 | 227 | "cY="<<corrclY<< |
15e48021 | 228 | "cR="<<corrR<< |
229 | "dxq="<<dxq<< | |
230 | "dyq="<<dyq<< | |
231 | "dzq="<<dzq<< | |
9dcfce73 | 232 | "\n"; |
233 | } | |
234 | } | |
235 | } | |
15e48021 | 236 | // |
237 | // | |
238 | // | |
11c7a854 | 239 | Int_t ncl = seed->GetNumberOfClusters(); |
240 | Double_t covar[15]; | |
241 | for (Int_t i=0;i<15;i++) covar[i]=0; | |
242 | covar[0]=10.*10.; | |
243 | covar[2]=10.*10.; | |
244 | covar[5]=10.*10./(64.*64.); | |
245 | covar[9]=10.*10./(64.*64.); | |
246 | covar[14]=1*1; | |
247 | ||
9dcfce73 | 248 | // |
249 | // And now do refit | |
250 | // | |
11c7a854 | 251 | AliExternalTrackParam * trackInOld = (AliExternalTrackParam*)track->GetInnerParam(); |
9dcfce73 | 252 | AliExternalTrackParam * trackOutOld = (AliExternalTrackParam*)track->GetOuterParam(); |
253 | ||
254 | AliExternalTrackParam trackIn = *trackOutOld; | |
11c7a854 | 255 | trackIn.ResetCovariance(200.); |
11c7a854 | 256 | trackIn.AddCovariance(covar); |
9dcfce73 | 257 | Double_t xyz[3]; |
258 | Int_t nclIn=0,nclOut=0; | |
259 | // | |
15e48021 | 260 | // Refit in |
261 | // | |
262 | ||
263 | for (Int_t irow=159; irow>0; irow--){ | |
264 | AliTPCclusterMI *cl=seed->GetClusterPointer(irow); | |
265 | if (!cl) continue; | |
266 | if (cl->GetX()<80) continue; | |
267 | Int_t sector = cl->GetDetector(); | |
268 | Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha(); | |
269 | if (TMath::Abs(dalpha)>0.01) | |
270 | trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.)); | |
271 | Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()}; | |
272 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
273 | AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]); | |
274 | cov[0]*=cov[0]; | |
275 | cov[2]*=cov[2]; | |
276 | trackIn.GetXYZ(xyz); | |
277 | Double_t bz = AliTracker::GetBz(xyz); | |
278 | ||
279 | if (!trackIn.PropagateTo(r[0],bz)) continue; | |
280 | if (RejectCluster(cl,&trackIn)) continue; | |
281 | nclIn++; | |
282 | trackIn.Update(&r[1],cov); | |
283 | } | |
284 | // | |
285 | AliExternalTrackParam trackOut = trackIn; | |
286 | trackOut.ResetCovariance(200.); | |
287 | trackOut.AddCovariance(covar); | |
288 | // | |
9dcfce73 | 289 | // Refit out |
290 | // | |
15e48021 | 291 | //Bool_t lastEdge=kFALSE; |
9dcfce73 | 292 | for (Int_t irow=0; irow<160; irow++){ |
293 | AliTPCclusterMI *cl=seed->GetClusterPointer(irow); | |
294 | if (!cl) continue; | |
295 | if (cl->GetX()<80) continue; | |
296 | Int_t sector = cl->GetDetector(); | |
297 | Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackOut.GetAlpha(); | |
298 | ||
299 | if (TMath::Abs(dalpha)>0.01) | |
300 | trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.)); | |
9dcfce73 | 301 | Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()}; |
91350f5b | 302 | |
303 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
304 | AliTPCseed::GetError(cl, &trackOut,cov[0],cov[2]); | |
305 | cov[0]*=cov[0]; | |
306 | cov[2]*=cov[2]; | |
9dcfce73 | 307 | trackOut.GetXYZ(xyz); |
308 | Double_t bz = AliTracker::GetBz(xyz); | |
15e48021 | 309 | if (!trackOut.PropagateTo(r[0],bz)) continue; |
42b40d07 | 310 | if (RejectCluster(cl,&trackOut)) continue; |
15e48021 | 311 | nclOut++; |
312 | trackOut.Update(&r[1],cov); | |
313 | //if (cl->GetType()<0) lastEdge=kTRUE; | |
314 | //if (cl->GetType()>=0) lastEdge=kFALSE; | |
9dcfce73 | 315 | } |
316 | // | |
9dcfce73 | 317 | // |
15e48021 | 318 | // |
319 | nclIn=0; | |
320 | trackIn = trackOut; | |
321 | trackIn.ResetCovariance(10.); | |
322 | // | |
323 | // Refit in one more time | |
324 | // | |
9dcfce73 | 325 | for (Int_t irow=159; irow>0; irow--){ |
326 | AliTPCclusterMI *cl=seed->GetClusterPointer(irow); | |
327 | if (!cl) continue; | |
328 | if (cl->GetX()<80) continue; | |
329 | Int_t sector = cl->GetDetector(); | |
330 | Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha(); | |
331 | if (TMath::Abs(dalpha)>0.01) | |
332 | trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.)); | |
9dcfce73 | 333 | Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()}; |
334 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
91350f5b | 335 | AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]); |
336 | cov[0]*=cov[0]; | |
337 | cov[2]*=cov[2]; | |
338 | trackIn.GetXYZ(xyz); | |
9dcfce73 | 339 | Double_t bz = AliTracker::GetBz(xyz); |
340 | ||
15e48021 | 341 | if (!trackIn.PropagateTo(r[0],bz)) continue; |
42b40d07 | 342 | if (RejectCluster(cl,&trackIn)) continue; |
15e48021 | 343 | nclIn++; |
9dcfce73 | 344 | trackIn.Update(&r[1],cov); |
345 | } | |
15e48021 | 346 | |
347 | ||
3bf5c7a6 | 348 | trackIn.Rotate(trackInOld->GetAlpha()); |
349 | trackOut.Rotate(trackOutOld->GetAlpha()); | |
350 | // | |
351 | trackInOld->GetXYZ(xyz); | |
352 | Double_t bz = AliTracker::GetBz(xyz); | |
353 | trackIn.PropagateTo(trackInOld->GetX(),bz); | |
354 | // | |
355 | trackOutOld->GetXYZ(xyz); | |
356 | bz = AliTracker::GetBz(xyz); | |
357 | trackOut.PropagateTo(trackOutOld->GetX(),bz); | |
358 | ||
9dcfce73 | 359 | |
360 | if (fStreamLevel>0){ | |
361 | TTreeSRedirector *cstream = GetDebugStreamer(); | |
362 | if (cstream){ | |
363 | (*cstream)<<"Tracks"<< | |
108953e9 | 364 | "run="<<fRun<< // run number |
365 | "event="<<fEvent<< // event number | |
366 | "time="<<fTime<< // time stamp of event | |
367 | "trigger="<<fTrigger<< // trigger | |
15e48021 | 368 | "triggerClass="<<&fTriggerClass<< // trigger |
108953e9 | 369 | "mag="<<fMagF<< // magnetic field |
9dcfce73 | 370 | "nclIn="<<nclIn<< |
371 | "nclOut="<<nclOut<< | |
372 | "ncl="<<ncl<< | |
373 | "TrIn0.="<<trackInOld<< | |
374 | "TrOut0.="<<trackOutOld<< | |
375 | "TrIn1.="<<&trackIn<< | |
376 | "TrOut1.="<<&trackOut<< | |
377 | "\n"; | |
378 | } | |
379 | } | |
3bf5c7a6 | 380 | // |
981e9de5 | 381 | // And now rewrite ESDtrack and TPC seed |
3bf5c7a6 | 382 | // |
383 | ||
384 | (*trackInOld) = trackIn; | |
385 | (*trackOutOld) = trackOut; | |
386 | AliExternalTrackParam *t = &trackIn; | |
387 | track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
981e9de5 | 388 | seed->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); |
fe8454d9 | 389 | seed->SetNumberOfClusters((nclIn+nclOut)/2); |
2cfb8d90 | 390 | return kTRUE; |
9dcfce73 | 391 | } |
392 | ||
393 | ||
394 | ||
395 | Bool_t AliTPCcalibCalib::RejectCluster(AliTPCclusterMI* cl, AliExternalTrackParam * param){ | |
396 | // | |
397 | // check the acceptance of cluster | |
398 | // Cut on edge effects | |
399 | // | |
15e48021 | 400 | Float_t kEdgeCut=2.5; |
401 | Float_t kSigmaCut=6; | |
402 | ||
9dcfce73 | 403 | Bool_t isReject = kFALSE; |
404 | Float_t edgeY = cl->GetX()*TMath::Tan(TMath::Pi()/18); | |
405 | Float_t dist = edgeY - TMath::Abs(cl->GetY()); | |
406 | if (param) dist = TMath::Abs(edgeY - TMath::Abs(param->GetY())); | |
15e48021 | 407 | if (dist<kEdgeCut) isReject=kTRUE; |
408 | ||
409 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
410 | AliTPCseed::GetError(cl, param,cov[0],cov[2]); | |
411 | Double_t py = (cl->GetY()-param->GetY())/TMath::Sqrt(cov[0]*cov[0]+param->GetSigmaY2()); | |
412 | Double_t pz = (cl->GetZ()-param->GetZ())/TMath::Sqrt(cov[2]*cov[2]+param->GetSigmaZ2()); | |
413 | // | |
414 | if ((py*py+pz*pz)>kSigmaCut*kSigmaCut) isReject=kTRUE; | |
415 | ||
9dcfce73 | 416 | return isReject; |
417 | } | |
418 | ||
419 | ||
91350f5b | 420 |