1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
17 ///////////////////////////////////////////////////////////////////////////////
19 // Component for redoing the reconstruction from the clusters and tracks
21 // The new calibration data used
23 // In reality it overwrites the content of the ESD
28 gSystem->Load("libANALYSIS");
29 gSystem->Load("libTPCcalib");
31 gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros");
32 gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+")
33 AliXRDPROOFtoolkit tool;
34 TChain * chainCl = tool.MakeChain("calib.txt","Clusters",0,1);
36 TChain * chainTr = tool.MakeChain("calib.txt","Tracks",0,1);
45 // marian.ivanov@cern.ch
47 #include "AliTPCcalibCalib.h"
50 #include "TTreeStream.h"
52 #include "TTimeStamp.h"
53 #include "AliESDEvent.h"
54 #include "AliESDfriend.h"
55 #include "AliESDtrack.h"
56 #include "AliTracker.h"
57 #include "AliTPCClusterParam.h"
59 #include "AliTPCcalibDB.h"
60 #include "AliTPCTransform.h"
61 #include "AliTPCRecoParam.h"
62 #include "AliTPCclusterMI.h"
63 #include "AliTPCseed.h"
64 #include "AliTPCPointCorrection.h"
66 ClassImp(AliTPCcalibCalib)
68 AliTPCcalibCalib::AliTPCcalibCalib():
70 fApplyExBCorrection(1), // apply ExB correction
71 fApplyTOFCorrection(1), // apply TOF correction
72 fApplyPositionCorrection(1), // apply position correction
73 fApplySectorAlignment(1), // apply sector alignment
74 fApplyRPhiCorrection(1), // apply R-Phi correction
75 fApplyRCorrection(1) // apply Radial correction
84 AliTPCcalibCalib::AliTPCcalibCalib(const Text_t *name, const Text_t *title)
86 fApplyExBCorrection(1), // apply ExB correction
87 fApplyTOFCorrection(1), // apply TOF correction
88 fApplyPositionCorrection(1), // apply position correction
89 fApplySectorAlignment(1), // apply sector alignment
90 fApplyRPhiCorrection(1), // apply R-Phi correction
91 fApplyRCorrection(1) // apply Radial correction
98 AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib):
99 AliTPCcalibBase(calib),
100 fApplyExBCorrection(calib.GetApplyExBCorrection()),
101 fApplyTOFCorrection(calib.GetApplyTOFCorrection()),
102 fApplyPositionCorrection(calib.GetApplyPositionCorrection()),
103 fApplySectorAlignment(calib.GetApplySectorAlignment()),
104 fApplyRPhiCorrection(calib.GetApplyRPhiCorrection()),
105 fApplyRCorrection(calib.GetApplyRCorrection())
113 AliTPCcalibCalib &AliTPCcalibCalib::operator=(const AliTPCcalibCalib&calib){
117 ((AliTPCcalibBase *)this)->operator=(calib);
122 AliTPCcalibCalib::~AliTPCcalibCalib() {
129 void AliTPCcalibCalib::Process(AliESDEvent *event){
136 AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
141 if (GetDebugLevel()>20) printf("Hallo world: Im here\n");
142 Int_t ntracks=event->GetNumberOfTracks();
143 //AliTPCcalibDB::Instance()->SetExBField(fMagF);
149 for (Int_t i=0;i<ntracks;++i) {
150 AliESDtrack *track = event->GetTrack(i);
151 AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i);
153 const AliExternalTrackParam * trackIn = track->GetInnerParam();
154 const AliExternalTrackParam * trackOut = track->GetOuterParam();
155 AliExternalTrackParam * tpcOut = (AliExternalTrackParam *)friendTrack->GetTPCOut();
156 if (!trackIn) continue;
157 if (!trackOut) continue;
158 if (!tpcOut) continue;
159 TObject *calibObject;
160 AliTPCseed *seed = 0;
161 for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
162 if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
165 RefitTrack(track, seed,event->GetMagneticField());
166 (*tpcOut)=*(track->GetOuterParam());
171 Bool_t AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed, Float_t magesd){
174 // if magesd==0 forget the curvature
177 // 0 - Setup transform object
179 AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
180 AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters();
181 transform->SetCurrentRun(fRun);
182 transform->SetCurrentTimeStamp((UInt_t)fTime);
183 if(!fApplyExBCorrection) { // disable ExB correction in transform
184 if(transform->GetCurrentRecoParam())
185 transform->GetCurrentRecoParamNonConst()->SetUseExBCorrection(0);
187 if(!fApplyTOFCorrection) { // disable TOF correction in transform
188 if(transform->GetCurrentRecoParam())
189 transform->GetCurrentRecoParamNonConst()->SetUseTOFCorrection(kFALSE);
193 // First apply calibration
195 AliTPCPointCorrection * corr = AliTPCPointCorrection::Instance();
196 for (Int_t irow=0;irow<159;irow++) {
197 AliTPCclusterMI *cluster=seed->GetClusterPointer(irow);
198 if (!cluster) continue;
199 AliTPCclusterMI cl0(*cluster);
200 Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()};
201 Int_t i[1]={cluster->GetDetector()};
203 transform->Transform(x,i,0,1);
205 // get position correction
208 if (cluster->GetDetector()>35) ipad=1;
209 Float_t dy =AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
210 Float_t dz =AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
211 // if(fApplyPositionCorrection) {
216 // Apply sector alignment
218 Double_t dxq = AliTPCPointCorrection::SGetCorrectionSector(0,cluster->GetDetector()%36,cluster->GetX(),
219 cluster->GetY(),cluster->GetZ());
220 Double_t dyq = AliTPCPointCorrection::SGetCorrectionSector(1,cluster->GetDetector()%36,cluster->GetX(),
221 cluster->GetY(),cluster->GetZ());
222 Double_t dzq = AliTPCPointCorrection::SGetCorrectionSector(2,cluster->GetDetector()%36,cluster->GetX(),
223 cluster->GetY(),cluster->GetZ());
224 if (fApplySectorAlignment){
230 // Apply r-phi correction - To be done on track level- knowing the track angle !!!
233 corr->RPhiCOGCorrection(cluster->GetDetector(),cluster->GetRow(), cluster->GetPad(),
234 cluster->GetY(),cluster->GetY(), cluster->GetZ(), 0., cluster->GetMax(),2.5);
236 Double_t corrR = corr->CorrectionOutR0(kFALSE,kFALSE,cluster->GetX(),cluster->GetY(),cluster->GetZ(),cluster->GetDetector());
238 if (fApplyRPhiCorrection){
239 if (cluster->GetY()>0) x[1]+=corrclY; // rphi correction
240 if (cluster->GetY()<0) x[1]-=corrclY; // rphi correction
242 if (fApplyRCorrection){
243 x[0]+=corrR; // radial correction
257 // if (!param->IsGeoRead()) param->ReadGeoMatrices();
258 // TGeoHMatrix *mat = param->GetClusterMatrix(cluster->GetDetector());
259 // //TGeoHMatrix mat;
260 // Double_t pos[3]= {cluster->GetX(),cluster->GetY(),cluster->GetZ()};
261 // Double_t posC[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
262 // if (mat) mat->LocalToMaster(pos,posC);
264 // // chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
266 // cluster->SetX(posC[0]);
267 // cluster->SetY(posC[1]);
268 // cluster->SetZ(posC[2]);
274 TTreeSRedirector *cstream = GetDebugStreamer();
276 (*cstream)<<"Clusters"<<
277 "run="<<fRun<< // run number
278 "event="<<fEvent<< // event number
279 "time="<<fTime<< // time stamp of event
280 "trigger="<<fTrigger<< // trigger
281 "triggerClass="<<&fTriggerClass<< // trigger
282 "mag="<<fMagF<< // magnetic field
299 Int_t ncl = seed->GetNumberOfClusters();
301 for (Int_t i=0;i<15;i++) covar[i]=0;
304 covar[5]=10.*10./(64.*64.);
305 covar[9]=10.*10./(64.*64.);
307 if (TMath::Abs(magesd)<0.05) {
308 covar[14]=0.025*0.025;
313 AliExternalTrackParam * trackInOld = (AliExternalTrackParam*)track->GetInnerParam();
314 AliExternalTrackParam * trackOutOld = (AliExternalTrackParam*)track->GetOuterParam();
317 AliExternalTrackParam trackIn = *trackOutOld;
318 if (TMath::Abs(magesd)<0.05) {
319 ((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
321 trackIn.ResetCovariance(20.);
322 trackIn.AddCovariance(covar);
324 Int_t nclIn=0,nclOut=0;
329 for (Int_t irow=159; irow>0; irow--){
330 AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
332 if (cl->GetX()<80) continue;
333 Int_t sector = cl->GetDetector();
334 Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
335 if (TMath::Abs(dalpha)>0.01){
336 if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
338 Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
339 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
340 AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
344 Double_t bz = AliTracker::GetBz(xyz);
346 if (!trackIn.PropagateTo(r[0],bz)) continue;
347 if (RejectCluster(cl,&trackIn)) continue;
349 trackIn.Update(&r[1],cov);
352 AliExternalTrackParam trackOut = trackIn;
353 if (TMath::Abs(magesd)<0.05) {
354 ((Double_t&)(trackOut.GetParameter()[4]))=0.000000001;
356 trackOut.ResetCovariance(20.);
357 trackOut.AddCovariance(covar);
361 //Bool_t lastEdge=kFALSE;
362 for (Int_t irow=0; irow<160; irow++){
363 AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
365 if (cl->GetX()<80) continue;
366 Int_t sector = cl->GetDetector();
367 Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackOut.GetAlpha();
369 if (TMath::Abs(dalpha)>0.01){
370 if (!trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
372 Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
374 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
375 AliTPCseed::GetError(cl, &trackOut,cov[0],cov[2]);
378 trackOut.GetXYZ(xyz);
379 Double_t bz = AliTracker::GetBz(xyz);
380 if (!trackOut.PropagateTo(r[0],bz)) continue;
381 if (RejectCluster(cl,&trackOut)) continue;
383 trackOut.Update(&r[1],cov);
384 //if (cl->GetType()<0) lastEdge=kTRUE;
385 //if (cl->GetType()>=0) lastEdge=kFALSE;
392 trackIn.ResetCovariance(10.);
394 // Refit in one more time
396 for (Int_t irow=159; irow>0; irow--){
397 AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
399 if (cl->GetX()<80) continue;
400 Int_t sector = cl->GetDetector();
401 Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
402 if (TMath::Abs(dalpha)>0.01){
403 if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
405 Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
406 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
407 AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
411 Double_t bz = AliTracker::GetBz(xyz);
413 if (!trackIn.PropagateTo(r[0],bz)) continue;
414 if (RejectCluster(cl,&trackIn)) continue;
416 trackIn.Update(&r[1],cov);
420 trackIn.Rotate(trackInOld->GetAlpha());
421 trackOut.Rotate(trackOutOld->GetAlpha());
423 trackInOld->GetXYZ(xyz);
424 Double_t bz = AliTracker::GetBz(xyz);
425 trackIn.PropagateTo(trackInOld->GetX(),bz);
427 trackOutOld->GetXYZ(xyz);
428 bz = AliTracker::GetBz(xyz);
429 trackOut.PropagateTo(trackOutOld->GetX(),bz);
433 TTreeSRedirector *cstream = GetDebugStreamer();
435 (*cstream)<<"Tracks"<<
436 "run="<<fRun<< // run number
437 "event="<<fEvent<< // event number
438 "time="<<fTime<< // time stamp of event
439 "trigger="<<fTrigger<< // trigger
440 "triggerClass="<<&fTriggerClass<< // trigger
441 "mag="<<fMagF<< // magnetic field
445 "TrIn0.="<<trackInOld<<
446 "TrOut0.="<<trackOutOld<<
447 "TrIn1.="<<&trackIn<<
448 "TrOut1.="<<&trackOut<<
453 // And now rewrite ESDtrack and TPC seed
456 (*trackInOld) = trackIn;
457 (*trackOutOld) = trackOut;
458 AliExternalTrackParam *t = &trackIn;
459 track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
460 seed->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
461 seed->SetNumberOfClusters((nclIn+nclOut)/2);
467 Bool_t AliTPCcalibCalib::RejectCluster(AliTPCclusterMI* cl, AliExternalTrackParam * param){
469 // check the acceptance of cluster
470 // Cut on edge effects
472 Float_t kEdgeCut=2.5;
475 Bool_t isReject = kFALSE;
476 Float_t edgeY = cl->GetX()*TMath::Tan(TMath::Pi()/18);
477 Float_t dist = edgeY - TMath::Abs(cl->GetY());
478 if (param) dist = TMath::Abs(edgeY - TMath::Abs(param->GetY()));
479 if (dist<kEdgeCut) isReject=kTRUE;
481 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
482 AliTPCseed::GetError(cl, param,cov[0],cov[2]);
483 if (param->GetSigmaY2()<0 || param->GetSigmaZ2()<0){
484 AliError("Wrong parameters");
487 Double_t py = (cl->GetY()-param->GetY())/TMath::Sqrt(cov[0]*cov[0]+param->GetSigmaY2());
488 Double_t pz = (cl->GetZ()-param->GetZ())/TMath::Sqrt(cov[2]*cov[2]+param->GetSigmaZ2());
490 if ((py*py+pz*pz)>kSigmaCut*kSigmaCut) isReject=kTRUE;