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 **************************************************************************/
19 Responsible: marian.ivanov@cern.ch
20 Code to analyze the TPC calibration and to produce OCDB entries
24 gSystem->Load("libANALYSIS");
25 gSystem->Load("libTPCcalib");
27 AliTPCPreprocessorOffline proces;
28 TString ocdbPath="local:////"
29 ocdbPath+=gSystem->GetFromPipe("pwd");
31 proces.CalibTimeGain("CalibObjects.root",run0,run1,ocdbPath);
32 proces.CalibTimeVdrift("CalibObjects.root",run0,run1,ocdbPath);
33 // take the raw calibration data from the file CalibObjects.root
34 // and make a OCDB entry with run validity run0-run1
35 // results are stored at the ocdbPath - local or alien ...
36 // default storage ""- data stored at current working directory
39 gSystem->Load("libANALYSIS");
40 gSystem->Load("libTPCcalib");
41 AliTPCPreprocessorOffline proces;
42 proces.CalibTimeGain("TPCMultObjects.root",114000,140040,0);
43 TFile oo("OCDB/TPC/Calib/TimeGain/Run114000_121040_v0_s0.root")
44 TObjArray * arr = AliCDBEntry->GetObject()
45 arr->At(4)->Draw("alp")
48 #include "Riostream.h"
51 #include "TGraphErrors.h"
52 #include "AliExternalTrackParam.h"
55 #include "TMultiGraph.h"
57 #include "THnSparse.h"
62 #include "AliTPCROC.h"
63 #include "AliTPCCalROC.h"
64 #include "AliESDfriend.h"
65 #include "AliTPCcalibTime.h"
66 #include "AliSplineFit.h"
67 #include "AliCDBMetaData.h"
69 #include "AliCDBManager.h"
70 #include "AliCDBStorage.h"
71 #include "AliTPCcalibBase.h"
72 #include "AliTPCcalibDB.h"
73 #include "AliTPCcalibDButil.h"
74 #include "AliRelAlignerKalman.h"
75 #include "AliTPCParamSR.h"
76 #include "AliTPCcalibTimeGain.h"
77 #include "AliTPCcalibGainMult.h"
78 #include "AliTPCcalibAlign.h"
79 #include "AliSplineFit.h"
80 #include "AliTPCComposedCorrection.h"
81 #include "AliTPCExBTwist.h"
82 #include "AliTPCCalibGlobalMisalignment.h"
83 #include "TStatToolkit.h"
86 #include "AliTrackerBase.h"
87 #include "AliTracker.h"
88 #include "AliTPCPreprocessorOffline.h"
89 #include "AliTPCCorrectionFit.h"
93 ClassImp(AliTPCPreprocessorOffline)
95 AliTPCPreprocessorOffline::AliTPCPreprocessorOffline():
96 TNamed("TPCPreprocessorOffline","TPCPreprocessorOffline"),
97 fMinEntries(500), // minimal number of entries for fit
98 fStartRun(0), // start Run - used to make fast selection in THnSparse
99 fEndRun(0), // end Run - used to make fast selection in THnSparse
100 fStartTime(0), // fStartTime - used to make fast selection in THnSparse
101 fEndTime(0), // fEndTime - used to make fast selection in THnSparse
102 fOCDBstorage(0), // OCDB storage
103 fVdriftArray(new TObjArray),
105 fGraphMIP(0), // graph time dependence of MIP
106 fGraphCosmic(0), // graph time dependence at Plateu
107 fGraphAttachmentMIP(0),
108 fFitMIP(0), // fit of dependence - MIP
109 fFitCosmic(0), // fit of dependence - Plateu
110 fGainArray(new TObjArray), // array to be stored in the OCDB
111 fGainMIP(0), // calibration component for MIP
112 fGainCosmic(0), // calibration component for cosmic
114 fAlignTree(0), // alignment tree
115 fSwitchOnValidation(kFALSE), // flag to switch on validation of OCDB parameters
118 fMaxVdriftCorr(0.03),
123 fCalibrationStatus(0)
126 // default constructor
130 AliTPCPreprocessorOffline::~AliTPCPreprocessorOffline() {
139 void AliTPCPreprocessorOffline::GetRunRange(AliTPCcalibTime * const timeDrift){
141 // find the fist and last run
143 TObjArray *hisArray =timeDrift->GetHistoDrift();
144 {for (Int_t i=0; i<hisArray->GetEntriesFast(); i++){
145 THnSparse* addHist=(THnSparse*)hisArray->UncheckedAt(i);
146 if (!addHist) continue;
147 if (addHist->GetEntries()<fMinEntries) continue;
148 TH1D* histo =addHist->Projection(3);
149 TH1D* histoTime=addHist->Projection(0);
150 printf("%s\t%f\t%d\t%d\n",histo->GetName(), histo->GetEntries(),histo->FindFirstBinAbove(0),histo->FindLastBinAbove(0));
153 fStartRun=histo->FindFirstBinAbove(0);
154 fEndRun =histo->FindLastBinAbove(0);
156 fStartRun=TMath::Min(histo->FindFirstBinAbove(0),fStartRun);
157 fEndRun =TMath::Max(histo->FindLastBinAbove(0),fEndRun);
160 fStartTime=histoTime->FindFirstBinAbove(0);
161 fEndTime =histoTime->FindLastBinAbove(0);
163 fStartTime=TMath::Min(histoTime->FindFirstBinAbove(0),fStartTime);
164 fEndTime =TMath::Max(histoTime->FindLastBinAbove(0),fEndTime);
169 if (fStartRun<0) fStartRun=0;
170 if (fEndRun<0) fEndRun=100000000;
171 printf("Run range :\t%d-%d\n", fStartRun, fEndRun);
172 printf("Time range :\t%d-%d\n", fStartTime, fEndTime);
178 void AliTPCPreprocessorOffline::CalibTimeVdrift(const Char_t* file, Int_t ustartRun, Int_t uendRun, AliCDBStorage* pocdbStorage){
180 // make calibration of the drift velocity
182 // file - the location of input file
183 // ustartRun, uendrun - run validity period
184 // pocdbStorage - path to hte OCDB storage
185 // - if empty - local storage 'pwd' uesed
186 if (pocdbStorage) fOCDBstorage=pocdbStorage;
188 TString localStorage = "local://"+gSystem->GetFromPipe("pwd")+"/OCDB";
189 fOCDBstorage=AliCDBManager::Instance()->GetStorage(localStorage.Data());
193 // 1. Initialization and run range setting
195 TObjArray * array = (TObjArray*)fcalib.Get("TPCCalib");
197 fTimeDrift = (AliTPCcalibTime *)array->FindObject("calibTime");
199 fTimeDrift = (AliTPCcalibTime*)fcalib.Get("calibTime");
201 if(!fTimeDrift) return;
204 fNtracksVdrift = TMath::Nint(fTimeDrift->GetResHistoTPCITS(0)->GetEntries());
205 //if we have 0 ITS TPC matches it means we have no ITS tracks and we try to use TPC-TOF matching for calibration
206 if (fNtracksVdrift==0) fNtracksVdrift=TMath::Nint(fTimeDrift->GetResHistoTPCTOF(0)->GetEntries());
207 fNeventsVdrift = TMath::Nint(fTimeDrift->GetTPCVertexHisto(0)->GetEntries());
211 TObjArray *hisArray =fTimeDrift->GetHistoDrift();
212 GetRunRange(fTimeDrift);
213 for (Int_t i=0; i<hisArray->GetEntriesFast(); i++){
214 THnSparse* addHist=(THnSparse*)hisArray->At(i);
215 if (!addHist) continue;
216 if (fStartTime<fEndTime) addHist->GetAxis(0)->SetRange(fStartTime-1,fEndTime+1);
217 if (fStartRun<fEndRun) addHist->GetAxis(3)->SetRange(fStartRun-1,fEndRun+1);
221 // 2. extraction of the information
223 fVdriftArray = new TObjArray();
224 AddAlignmentGraphs(fVdriftArray,fTimeDrift);
225 AddHistoGraphs(fVdriftArray,fTimeDrift,fMinEntries);
226 AddLaserGraphs(fVdriftArray,fTimeDrift);
229 // 3. Append QA plots
231 MakeDefaultPlots(fVdriftArray,fVdriftArray);
234 // 4. validate OCDB entries
236 if(fSwitchOnValidation==kTRUE && ValidateTimeDrift()==kFALSE) {
237 Printf("TPC time drift OCDB parameters out of range!");
244 TFile * ftime= TFile::Open("fitITSVertex.root");
246 TObject * alignmentTime=ftime->Get("FitCorrectionTime");
247 if (alignmentTime) fVdriftArray->AddLast(alignmentTime);
254 UpdateOCDBDrift(ustartRun,uendRun,fOCDBstorage);
257 void AliTPCPreprocessorOffline::UpdateOCDBDrift( Int_t ustartRun, Int_t uendRun, AliCDBStorage* storage ){
261 AliCDBMetaData *metaData= new AliCDBMetaData();
262 metaData->SetObjectClassName("TObjArray");
263 metaData->SetResponsible("Marian Ivanov");
264 metaData->SetBeamPeriod(1);
265 metaData->SetAliRootVersion("05-25-01"); //root version
266 metaData->SetComment("Calibration of the time dependence of the drift velocity");
268 id1=new AliCDBId("TPC/Calib/TimeDrift", ustartRun, uendRun);
269 storage->Put(fVdriftArray, (*id1), metaData);
272 Bool_t AliTPCPreprocessorOffline::ValidateTimeGain()
275 // Validate time gain corrections
277 Printf("ValidateTimeGain..." );
278 Float_t minGain = fMinGain;
279 Float_t maxGain = fMaxGain;
281 TGraphErrors *gr = (TGraphErrors*)fGainArray->FindObject("TGRAPHERRORS_MEAN_GAIN_BEAM_ALL");
283 gr = (TGraphErrors*)fGainArray->FindObject("TGRAPHERRORS_MEAN_GAIN_COSMIC_ALL");
286 fCalibrationStatus |= kCalibFailedTimeGain;
289 Printf("Assuming given run is a cosmic run. Using gain calibration from Fermi-plateau muons.");
293 fCalibrationStatus |= kCalibFailedTimeGain;
297 // check whether gain in the range
298 for(Int_t iPoint=0; iPoint<gr->GetN(); iPoint++)
300 if(gr->GetY()[iPoint] < minGain || gr->GetY()[iPoint] > maxGain)
302 fCalibrationStatus |= kCalibFailedTimeGain;
311 Bool_t AliTPCPreprocessorOffline::ValidateTimeDrift()
314 // Validate time drift velocity corrections
316 Printf("ValidateTimeDrift..." );
318 Float_t maxVDriftCorr = fMaxVdriftCorr;
320 TGraphErrors* gr = (TGraphErrors*)fVdriftArray->FindObject("ALIGN_ITSB_TPC_DRIFTVD");
321 Printf("ALIGN_ITSB_TPC_DRIFTVD graph = %p",gr);
324 gr = (TGraphErrors*)fVdriftArray->FindObject("ALIGN_TOFB_TPC_DRIFTVD");
325 Printf("ALIGN_TOFB_TPC_DRIFTVD graph = %p",gr);
330 fCalibrationStatus|=kCalibFailedTimeDrift;
334 // for now we validate even with low statistics
335 ////check if we have enough statistics
336 //if (fNtracksVdrift<fMinTracksVdrift)
338 // fCalibrationStatus|=kCalibFailedTimeDrift;
343 Printf("ALIGN_ITSB_TPC_DRIFTVD number of points = %d",gr->GetN());
345 fCalibrationStatus|=kCalibFailedTimeDrift;
350 // check whether drift velocity corrections in the range
351 for(Int_t iPoint = 0; iPoint<gr->GetN(); iPoint++)
353 //Printf("Y value from the graph: %f",TMath::Abs(gr->GetY()[iPoint]));
354 if(TMath::Abs(gr->GetY()[iPoint]) > maxVDriftCorr)
356 fCalibrationStatus|=kCalibFailedTimeDrift;
364 void AliTPCPreprocessorOffline::UpdateDriftParam(AliTPCParam *param, TObjArray *const arr, Int_t lstartRun){
366 // update the OCDB entry for the nominal time0
369 // AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters();
370 AliTPCParam *paramNew = (AliTPCParam *)param->Clone();
371 TGraphErrors *grT = (TGraphErrors *)arr->FindObject("ALIGN_ITSM_TPC_T0");
372 Double_t deltaTcm = TMath::Median(grT->GetN(),grT->GetY());
373 Double_t deltaT = deltaTcm/param->GetDriftV();
374 paramNew->SetL1Delay(param->GetL1Delay()-deltaT);
377 AliCDBMetaData *metaData= new AliCDBMetaData();
378 metaData->SetObjectClassName("TObjArray");
379 metaData->SetResponsible("Marian Ivanov");
380 metaData->SetBeamPeriod(1);
381 metaData->SetAliRootVersion("05-25-02"); //root version
382 metaData->SetComment("Updated calibration of nominal time 0");
384 id1=new AliCDBId("TPC/Calib/Parameters", lstartRun, AliCDBRunRange::Infinity());
385 fOCDBstorage->Put(param, (*id1), metaData);
390 void AliTPCPreprocessorOffline::PrintArray(TObjArray *array){
392 // Print the names of the entries in array
394 Int_t entries = array->GetEntries();
395 for (Int_t i=0; i<entries; i++){
396 if (!array->At(i)) continue;
397 printf("%d\t %s\n", i, array->At(i)->GetName());
403 TGraphErrors* AliTPCPreprocessorOffline::FilterGraphDrift(TGraphErrors * graph, Float_t errSigmaCut, Float_t medianCutAbs){
405 // 1. filter graph - error cut errSigmaCut
406 // 2. filter graph - medianCutAbs around median
408 // errSigmaCut - cut on error
409 // medianCutAbs - cut on value around median
412 // 1. filter graph - error cut errSigmaCut
414 TGraphErrors *graphF;
415 graphF = AliTPCcalibDButil::FilterGraphMedianErr(graph,errSigmaCut,dummy);
417 if (!graphF) return 0;
418 graph = AliTPCcalibDButil::FilterGraphMedianErr(graphF,errSigmaCut,dummy);
420 if (!graph) return 0;
422 // filter graph - kMedianCutAbs around median
424 graphF=FilterGraphMedianAbs(graph, medianCutAbs,dummy);
426 if (!graphF) return 0;
427 graph=FilterGraphMedianAbs(graphF, medianCutAbs,dummy);
429 if (!graph) return 0;
435 TGraphErrors* AliTPCPreprocessorOffline::FilterGraphMedianAbs(TGraphErrors * graph, Float_t cut,Double_t &medianY){
437 // filter outlyer measurement
438 // Only points around median +- cut filtered
440 if (!graph) return 0;
442 Int_t npoints0 = graph->GetN();
445 Double_t *outx=new Double_t[npoints0];
446 Double_t *outy=new Double_t[npoints0];
447 Double_t *errx=new Double_t[npoints0];
448 Double_t *erry=new Double_t[npoints0];
451 if (npoints0<kMinPoints) {
458 for (Int_t iter=0; iter<3; iter++){
460 for (Int_t ipoint=0; ipoint<npoints0; ipoint++){
461 if (graph->GetY()[ipoint]==0) continue;
462 if (iter>0 &&TMath::Abs(graph->GetY()[ipoint]-medianY)>cut) continue;
463 outx[npoints] = graph->GetX()[ipoint];
464 outy[npoints] = graph->GetY()[ipoint];
465 errx[npoints] = graph->GetErrorX(ipoint);
466 erry[npoints] = graph->GetErrorY(ipoint);
469 if (npoints<=1) break;
470 medianY =TMath::Median(npoints,outy);
471 rmsY =TMath::RMS(npoints,outy);
473 TGraphErrors *graphOut=0;
474 if (npoints>1) graphOut= new TGraphErrors(npoints,outx,outy,errx,erry);
483 void AliTPCPreprocessorOffline::AddHistoGraphs( TObjArray * vdriftArray, AliTPCcalibTime * const timeDrift, Int_t minEntries){
485 // Add graphs corresponding to the alignment
487 const Double_t kErrSigmaCut=5; // error sigma cut - for filtering
488 const Double_t kMedianCutAbs=0.03; // error sigma cut - for filtering
490 TObjArray * array=timeDrift->GetHistoDrift();
492 THnSparse* hist=NULL;
493 // 2.a) cosmics with different triggers
494 for (Int_t i=0; i<array->GetEntriesFast();i++){
495 hist=(THnSparseF*)array->UncheckedAt(i);
497 if (hist->GetEntries()<minEntries) continue;
499 TString name=hist->GetName();
500 Int_t dim[4]={0,1,2,3};
501 THnSparse* newHist=hist->Projection(4,dim);
502 newHist->SetName(name);
503 TGraphErrors* graph=AliTPCcalibBase::FitSlices(newHist,2,0,400,100,0.05,0.95, kTRUE);
505 printf("Graph =%s filtered out\n", name.Data());
508 printf("name=%s graph=%i, N=%i\n", name.Data(), graph==0, graph->GetN());
509 Int_t pos=name.Index("_");
510 name=name(pos,name.Capacity()-pos);
511 TString graphName=graph->ClassName();
515 graph = FilterGraphDrift(graph, kErrSigmaCut, kMedianCutAbs);
518 graph->SetMarkerStyle(i%8+20);
519 graph->SetMarkerColor(i%7);
520 graph->GetXaxis()->SetTitle("Time");
521 graph->GetYaxis()->SetTitle("v_{dcor}");
522 graph->SetName(graphName);
523 graph->SetTitle(graphName);
524 printf("Graph %d\t=\t%s\n", i, graphName.Data());
525 vdriftArray->Add(graph);
534 void AliTPCPreprocessorOffline::AddAlignmentGraphs( TObjArray * vdriftArray, AliTPCcalibTime *const timeDrift){
536 // Add graphs corresponding to alignment to the object array
538 TObjArray *arrayITS=0;
539 TObjArray *arrayTOF=0;
540 TObjArray *arrayTRD=0;
541 TMatrixD *mstatITS=0;
542 TMatrixD *mstatTOF=0;
543 TMatrixD *mstatTRD=0;
545 arrayITS=timeDrift->GetAlignITSTPC();
546 arrayTRD=timeDrift->GetAlignTRDTPC();
547 arrayTOF=timeDrift->GetAlignTOFTPC();
549 if (arrayITS->GetEntries()>0) mstatITS= AliTPCcalibDButil::MakeStatRelKalman(arrayITS,0.7,50,fMaxVdriftCorr);
550 if (arrayTOF->GetEntries()>0) mstatTOF= AliTPCcalibDButil::MakeStatRelKalman(arrayTOF,0.7,1000,fMaxVdriftCorr);
551 if (arrayTRD->GetEntries()>0) mstatTRD= AliTPCcalibDButil::MakeStatRelKalman(arrayTRD,0.7,50,fMaxVdriftCorr);
553 TObjArray * arrayITSP= AliTPCcalibDButil::SmoothRelKalman(arrayITS,*mstatITS, 0, 5.);
554 TObjArray * arrayITSM= AliTPCcalibDButil::SmoothRelKalman(arrayITS,*mstatITS, 1, 5.);
555 TObjArray * arrayITSB= AliTPCcalibDButil::SmoothRelKalman(arrayITSP,arrayITSM);
556 TObjArray * arrayTOFP= AliTPCcalibDButil::SmoothRelKalman(arrayTOF,*mstatTOF, 0, 5.);
557 TObjArray * arrayTOFM= AliTPCcalibDButil::SmoothRelKalman(arrayTOF,*mstatTOF, 1, 5.);
558 TObjArray * arrayTOFB= AliTPCcalibDButil::SmoothRelKalman(arrayTOFP,arrayTOFM);
560 TObjArray * arrayTRDP= 0x0;
561 TObjArray * arrayTRDM= 0x0;
562 TObjArray * arrayTRDB= 0x0;
563 arrayTRDP= AliTPCcalibDButil::SmoothRelKalman(arrayTRD,*mstatTRD, 0, 5.);
564 arrayTRDM= AliTPCcalibDButil::SmoothRelKalman(arrayTRD,*mstatTRD, 1, 5.);
565 arrayTRDB= AliTPCcalibDButil::SmoothRelKalman(arrayTRDP,arrayTRDM);
568 Int_t entries=TMath::Max(arrayITS->GetEntriesFast(),arrayTOF->GetEntriesFast());
569 TObjArray *arrays[12]={arrayITS, arrayITSP, arrayITSM, arrayITSB,
570 arrayTRD, arrayTRDP, arrayTRDM, arrayTRDB,
571 arrayTOF, arrayTOFP, arrayTOFM, arrayTOFB};
572 TString grnames[12]={"ALIGN_ITS", "ALIGN_ITSP", "ALIGN_ITSM", "ALIGN_ITSB",
573 "ALIGN_TRD", "ALIGN_TRDP", "ALIGN_TRDM","ALIGN_TRDB",
574 "ALIGN_TOF", "ALIGN_TOFP", "ALIGN_TOFM","ALIGN_TOFB"};
575 TString grpar[9]={"DELTAPSI", "DELTATHETA", "DELTAPHI",
576 "DELTAX", "DELTAY", "DELTAZ",
577 "DRIFTVD", "T0", "VDGY"};
580 TVectorD vX(entries);
581 TVectorD vY(entries);
582 TVectorD vEx(entries);
583 TVectorD vEy(entries);
585 for (Int_t iarray=0; iarray<12; iarray++){
586 arr = arrays[iarray];
587 if (arr==0) continue;
588 for (Int_t ipar=0; ipar<9; ipar++){
590 for (Int_t itime=0; itime<arr->GetEntriesFast(); itime++){
591 AliRelAlignerKalman * kalman = (AliRelAlignerKalman *) arr->UncheckedAt(itime);
592 if (!kalman) continue;
593 vX[counter]=kalman->GetTimeStamp();
594 vY[counter]=(*(kalman->GetState()))[ipar];
595 if (ipar==6) vY[counter]=1./(*(kalman->GetState()))[ipar]-1;
597 vEy[counter]=TMath::Sqrt((*(kalman->GetStateCov()))(ipar,ipar));
601 TGraphErrors * graph=new TGraphErrors(counter, vX.GetMatrixArray(),
603 vEx.GetMatrixArray(),
604 vEy.GetMatrixArray());
605 TString grName=grnames[iarray];
608 graph->SetName(grName.Data());
609 vdriftArray->AddLast(graph);
617 void AliTPCPreprocessorOffline::AddLaserGraphs( TObjArray * vdriftArray, AliTPCcalibTime *timeDrift){
619 // add graphs for laser
621 const Double_t delayL0L1 = 0.071; //this is hack for 1/2 weeks
623 TGraphErrors *grLaser[6]={0,0,0,0,0,0};
624 //hisN = timeDrift->GetHistVdriftLaserA(0);
625 if (timeDrift->GetHistVdriftLaserA(0)){
626 grLaser[0]=MakeGraphFilter0(timeDrift->GetHistVdriftLaserA(0),0,2,5,delayL0L1);
627 grLaser[0]->SetName("GRAPH_MEAN_DELAY_LASER_ALL_A");
628 vdriftArray->AddLast(grLaser[0]);
630 if (timeDrift->GetHistVdriftLaserA(1)){
631 grLaser[1]=MakeGraphFilter0(timeDrift->GetHistVdriftLaserA(1),0,2,5);
632 grLaser[1]->SetName("GRAPH_MEAN_DRIFT_LASER_ALL_A");
633 vdriftArray->AddLast(grLaser[1]);
635 if (timeDrift->GetHistVdriftLaserA(2)){
636 grLaser[2]=MakeGraphFilter0(timeDrift->GetHistVdriftLaserA(2),0,2,5);
637 grLaser[2]->SetName("GRAPH_MEAN_GLOBALYGRADIENT_LASER_ALL_A");
638 vdriftArray->AddLast(grLaser[2]);
640 if (timeDrift->GetHistVdriftLaserC(0)){
641 grLaser[3]=MakeGraphFilter0(timeDrift->GetHistVdriftLaserC(0),0,2,5,delayL0L1);
642 grLaser[3]->SetName("GRAPH_MEAN_DELAY_LASER_ALL_C");
643 vdriftArray->AddLast(grLaser[3]);
645 if (timeDrift->GetHistVdriftLaserC(1)){
646 grLaser[4]=MakeGraphFilter0(timeDrift->GetHistVdriftLaserC(1),0,2,5);
647 grLaser[4]->SetName("GRAPH_MEAN_DRIFT_LASER_ALL_C");
648 vdriftArray->AddLast(grLaser[4]);
650 if (timeDrift->GetHistVdriftLaserC(2)){
651 grLaser[5]=MakeGraphFilter0(timeDrift->GetHistVdriftLaserC(2),0,2,5);
652 grLaser[5]->SetName("GRAPH_MEAN_GLOBALYGRADIENT_LASER_ALL_C");
653 vdriftArray->AddLast(grLaser[5]);
655 for (Int_t i=0; i<6;i++){
657 SetDefaultGraphDrift(grLaser[i], 1,(i+20));
658 grLaser[i]->GetYaxis()->SetTitle("Laser Correction");
664 TGraphErrors * AliTPCPreprocessorOffline::MakeGraphFilter0(THnSparse *hisN, Int_t itime, Int_t ival, Int_t minEntries, Double_t offset){
666 // Make graph with mean values and rms
668 hisN->GetAxis(itime)->SetRange(0,100000000);
669 hisN->GetAxis(ival)->SetRange(0,100000000);
670 TH1 * hisT = hisN->Projection(itime);
671 TH1 * hisV = hisN->Projection(ival);
673 Int_t firstBinA = hisT->FindFirstBinAbove(2);
674 Int_t lastBinA = hisT->FindLastBinAbove(2);
675 Int_t firstBinV = hisV->FindFirstBinAbove(0);
676 Int_t lastBinV = hisV->FindLastBinAbove(0);
677 hisN->GetAxis(itime)->SetRange(firstBinA,lastBinA);
678 hisN->GetAxis(ival)->SetRange(firstBinV,lastBinV);
680 for (Int_t ibin=firstBinA; ibin<=lastBinA; ibin++){
681 Double_t cont = hisT->GetBinContent(ibin);
682 if (cont<minEntries) continue;
685 TVectorD vecTime(entries);
686 TVectorD vecMean0(entries);
687 TVectorD vecRMS0(entries);
688 TVectorD vecMean1(entries);
689 TVectorD vecRMS1(entries);
691 for (Int_t ibin=firstBinA; ibin<=lastBinA; ibin++){
692 Double_t cont = hisT->GetBinContent(ibin);
693 if (cont<minEntries) continue;
694 //hisN->GetAxis(itime)->SetRange(ibin-1,ibin+1);
695 Int_t minBin = ibin-1;
696 Int_t maxBin = ibin+1;
697 if(minBin <= 0) minBin = 1;
698 if(maxBin >= hisN->GetAxis(itime)->GetNbins()) maxBin = hisN->GetAxis(itime)->GetNbins()-1;
699 hisN->GetAxis(itime)->SetRange(minBin,maxBin);
701 Double_t time = hisT->GetBinCenter(ibin);
702 TH1 * his = hisN->Projection(ival);
703 Double_t nentries0= his->GetBinContent(his->FindBin(0));
704 if (cont-nentries0<minEntries) continue;
706 his->SetBinContent(his->FindBin(0),0);
707 vecTime[entries]=time;
708 vecMean0[entries]=his->GetMean()+offset;
709 vecMean1[entries]=his->GetMeanError();
710 vecRMS0[entries] =his->GetRMS();
711 vecRMS1[entries] =his->GetRMSError();
717 TGraphErrors * graph = new TGraphErrors(entries,vecTime.GetMatrixArray(), vecMean0.GetMatrixArray(), 0, vecMean1.GetMatrixArray());
728 void AliTPCPreprocessorOffline::SetDefaultGraphDrift(TGraph *graph, Int_t color, Int_t style){
730 // Set default style for QA views
732 graph->GetXaxis()->SetTimeDisplay(kTRUE);
733 graph->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}");
734 graph->SetMaximum( 0.025);
735 graph->SetMinimum(-0.025);
736 graph->GetXaxis()->SetTitle("Time");
737 graph->GetYaxis()->SetTitle("v_{dcorr}");
739 graph->GetYaxis()->SetLabelSize(0.03);
740 graph->GetXaxis()->SetLabelSize(0.03);
742 graph->GetXaxis()->SetNdivisions(10,5,0);
743 graph->GetYaxis()->SetNdivisions(10,5,0);
745 graph->GetXaxis()->SetLabelOffset(0.02);
746 graph->GetYaxis()->SetLabelOffset(0.005);
748 graph->GetXaxis()->SetTitleOffset(1.3);
749 graph->GetYaxis()->SetTitleOffset(1.2);
751 graph->SetMarkerColor(color);
752 graph->SetLineColor(color);
753 graph->SetMarkerStyle(style);
756 void AliTPCPreprocessorOffline::SetPadStyle(TPad *pad, Float_t mx0, Float_t mx1, Float_t my0, Float_t my1){
758 // Set default pad style for QA
761 pad->SetMargin(mx0,mx1,my0,my1);
765 void AliTPCPreprocessorOffline::MakeDefaultPlots(TObjArray * const arr, TObjArray * /*picArray*/){
767 // 0. make a default QA plots
768 // 1. Store them in the array
771 Float_t mx0=0.12, mx1=0.1, my0=0.15, my1=0.1;
773 TGraphErrors* laserA =(TGraphErrors*)arr->FindObject("GRAPH_MEAN_DRIFT_LASER_ALL_A");
774 TGraphErrors* laserC =(TGraphErrors*)arr->FindObject("GRAPH_MEAN_DRIFT_LASER_ALL_C");
775 TGraphErrors* cosmic =(TGraphErrors*)arr->FindObject("TGRAPHERRORS_MEAN_VDRIFT_COSMICS_ALL");
776 TGraphErrors* cross =(TGraphErrors*)arr->FindObject("TGRAPHERRORS_VDRIFT_CROSS_ALL");
777 TGraphErrors* itstpcP =(TGraphErrors*)arr->FindObject("ALIGN_ITSP_TPC_DRIFTVD");
778 TGraphErrors* itstpcM =(TGraphErrors*)arr->FindObject("ALIGN_ITSM_TPC_DRIFTVD");
779 TGraphErrors* itstpcB =(TGraphErrors*)arr->FindObject("ALIGN_ITSB_TPC_DRIFTVD");
781 if (laserA) SetDefaultGraphDrift(laserA,2,25);
782 if (laserC) SetDefaultGraphDrift(laserC,4,26);
783 if (cosmic) SetDefaultGraphDrift(cosmic,3,27);
784 if (cross) SetDefaultGraphDrift(cross,4,28);
785 if (itstpcP) SetDefaultGraphDrift(itstpcP,2,29);
786 if (itstpcM) SetDefaultGraphDrift(itstpcM,4,30);
787 if (itstpcB) SetDefaultGraphDrift(itstpcB,1,31);
795 pad = new TCanvas("TPCLaserVDrift","TPCLaserVDrift");
797 SetPadStyle(pad,mx0,mx1,my0,my1);
800 TLegend *legend = new TLegend(mx0+0.01,1-my1-0.2, 0.5, 1-my1-0.01, "Drift velocity correction");
801 legend->AddEntry(laserA,"Laser A side");
802 legend->AddEntry(laserC,"Laser C side");
804 //picArray->AddLast(pad);
807 if (itstpcP&&itstpcM&&itstpcB){
808 pad = new TCanvas("ITSTPC","ITSTPC");
809 itstpcP->Draw("alp");
810 SetPadStyle(pad,mx0,mx1,my0,my1);
811 itstpcP->Draw("alp");
813 itstpcM->Draw("apl");
816 TLegend *legend = new TLegend(mx0+0.01,1-my1-0.2, 0.5, 1-my1-0.01, "Drift velocity correction");
817 legend->AddEntry(itstpcP,"ITS-TPC smooth plus");
818 legend->AddEntry(itstpcM,"ITS-TPC smooth minus");
819 legend->AddEntry(itstpcB,"ITS-TPC smooth ");
821 //picArray->AddLast(pad);
824 if (itstpcB&&laserA&&itstpcP&&itstpcM){
825 pad = new TCanvas("ITSTPC_LASER","ITSTPC_LASER");
826 SetPadStyle(pad,mx0,mx1,my0,my1);
831 TLegend *legend = new TLegend(mx0+0.01,1-my1-0.2, 0.5, 1-my1-0.01, "Drift velocity correction");
832 legend->AddEntry(laserA,"TPC laser");
833 legend->AddEntry(itstpcP,"ITS-TPC smooth plus");
834 legend->AddEntry(itstpcM,"ITS-TPC smooth minus");
835 legend->AddEntry(itstpcB,"ITS-TPC smooth ");
837 //picArray->AddLast(pad);
841 pad = new TCanvas("ITSTPC_CROSS","ITSTPC_CROSS");
842 SetPadStyle(pad,mx0,mx1,my0,my1);
843 itstpcP->Draw("alp");
848 TLegend *legend = new TLegend(mx0+0.01,1-my1-0.2, 0.5, 1-my1-0.01, "Drift velocity correction");
850 legend->AddEntry(cross,"TPC cross tracks");
851 legend->AddEntry(itstpcB,"ITS-TPC smooth");
853 //picArray->AddLast(pad);
855 if (itstpcP&&cosmic){
856 pad = new TCanvas("ITSTPC_COSMIC","ITSTPC_COSMIC");
857 SetPadStyle(pad,mx0,mx1,my0,my1);
858 itstpcP->Draw("alp");
863 TLegend *legend = new TLegend(mx0+0.01,1-my1-0.2, 0.5, 1-my1-0.01, "Drift velocity correction");
865 legend->AddEntry(cosmic,"TPC cross tracks0 up-down");
866 legend->AddEntry(itstpcB,"ITS-TPC smooth");
868 //picArray->AddLast(pad);
875 void AliTPCPreprocessorOffline::CalibTimeGain(const Char_t* fileName, Int_t startRunNumber, Int_t endRunNumber, AliCDBStorage* pocdbStorage){
879 if (pocdbStorage==0) {
880 TString localStorage = "local://"+gSystem->GetFromPipe("pwd")+"/OCDB";
881 pocdbStorage = AliCDBManager::Instance()->GetStorage(localStorage.Data());
885 // 1. Read gain values
887 ReadGainGlobal(fileName);
890 // 2. Extract calibration values
892 AnalyzeGain(startRunNumber,endRunNumber, 1000,1.43);
893 AnalyzeAttachment(startRunNumber,endRunNumber);
894 AnalyzePadRegionGain();
895 AnalyzeGainMultiplicity();
896 AnalyzeGainChamberByChamber();
898 // 3. Make control plots
903 // 4. validate OCDB entries
905 if(fSwitchOnValidation==kTRUE && ValidateTimeGain()==kFALSE) {
906 Printf("TPC time gain OCDB parameters out of range!");
913 UpdateOCDBGain( startRunNumber, endRunNumber, pocdbStorage);
916 void AliTPCPreprocessorOffline::ReadGainGlobal(const Char_t* fileName){
918 // read calibration entries from file
920 TFile fcalib(fileName);
921 TObjArray * array = (TObjArray*)fcalib.Get("TPCCalib");
923 fGainMIP = ( AliTPCcalibTimeGain *)array->FindObject("calibTimeGain");
924 fGainCosmic = ( AliTPCcalibTimeGain *)array->FindObject("calibTimeGainCosmic");
925 fGainMult = ( AliTPCcalibGainMult *)array->FindObject("calibGainMult");
927 fGainMIP = ( AliTPCcalibTimeGain *)fcalib.Get("calibTimeGain");
928 fGainCosmic = ( AliTPCcalibTimeGain *)fcalib.Get("calibTimeGainCosmic");
929 fGainMult = ( AliTPCcalibGainMult *)fcalib.Get("calibGainMult");
932 TFile calibMultFile("TPCMultObjects.root");
933 fGainMult = ( AliTPCcalibGainMult *)calibMultFile.Get("calibGainMult");
936 Int_t firstBinA =0, lastBinA=0;
939 hisT= fGainCosmic->GetHistGainTime()->Projection(1);
940 firstBinA = hisT->FindFirstBinAbove(2);
941 lastBinA = hisT->FindLastBinAbove(2);
942 fGainCosmic->GetHistGainTime()->GetAxis(1)->SetRange(firstBinA,lastBinA);
947 hisT= fGainMIP->GetHistGainTime()->Projection(1);
948 firstBinA = hisT->FindFirstBinAbove(2);
949 lastBinA = hisT->FindLastBinAbove(2);
950 fGainMIP->GetHistGainTime()->GetAxis(1)->SetRange(firstBinA,lastBinA);
956 Bool_t AliTPCPreprocessorOffline::AnalyzeGain(Int_t startRunNumber, Int_t endRunNumber, Int_t minEntriesGaussFit, Float_t FPtoMIPratio){
958 // Analyze gain - produce the calibration graphs
961 // 1.) try to create MIP spline
964 fGainMIP->GetHistGainTime()->GetAxis(5)->SetRangeUser(startRunNumber, endRunNumber);
965 fGainMIP->GetHistGainTime()->GetAxis(2)->SetRangeUser(1.51,2.49); // only beam data
966 fGainMIP->GetHistGainTime()->GetAxis(4)->SetRangeUser(0.39,0.51); // only MIP pions
968 fGraphMIP = AliTPCcalibBase::FitSlices(fGainMIP->GetHistGainTime(),0,1,minEntriesGaussFit,10,0.1,0.7);
969 if (fGraphMIP->GetN()==0) fGraphMIP = 0x0;
970 if (fGraphMIP) fFitMIP = AliTPCcalibTimeGain::MakeSplineFit(fGraphMIP);
971 if (fGraphMIP) fGraphMIP->SetName("TGRAPHERRORS_MEAN_GAIN_BEAM_ALL");// set proper names according to naming convention
972 fGainArray->AddAt(fFitMIP,0);
975 // 2.) try to create Cosmic spline
978 fGainCosmic->GetHistGainTime()->GetAxis(2)->SetRangeUser(0.51,1.49); // only cosmics
979 fGainCosmic->GetHistGainTime()->GetAxis(4)->SetRangeUser(20,100); // only Fermi-Plateau muons
981 fGraphCosmic = AliTPCcalibBase::FitSlices(fGainCosmic->GetHistGainTime(),0,1,minEntriesGaussFit,10);
982 if (fGraphCosmic->GetN()==0) fGraphCosmic = 0x0;
985 for(Int_t i=0; i < fGraphCosmic->GetN(); i++) {
986 fGraphCosmic->GetY()[i] /= FPtoMIPratio;
987 fGraphCosmic->GetEY()[i] /= FPtoMIPratio;
991 if (fGraphCosmic) fFitCosmic = AliTPCcalibTimeGain::MakeSplineFit(fGraphCosmic);
992 if (fGraphCosmic) fGraphCosmic->SetName("TGRAPHERRORS_MEAN_GAIN_COSMIC_ALL"); // set proper names according to naming convention
993 fGainArray->AddAt(fFitCosmic,1);
995 // with naming convention and backward compatibility
996 fGainArray->AddAt(fGraphMIP,2);
997 fGainArray->AddAt(fGraphCosmic,3);
998 cout << "fGraphCosmic: " << fGraphCosmic << " fGraphMIP " << fGraphMIP << endl;
1003 Bool_t AliTPCPreprocessorOffline::AnalyzeAttachment(Int_t startRunNumber, Int_t endRunNumber, Int_t minEntriesFit) {
1005 // determine slope as a function of mean driftlength
1007 if(!fGainMIP) return kFALSE;
1009 fGainMIP->GetHistGainTime()->GetAxis(5)->SetRangeUser(startRunNumber, endRunNumber);
1011 fGainMIP->GetHistGainTime()->GetAxis(2)->SetRangeUser(1.51,2.49); // only beam data
1012 fGainMIP->GetHistGainTime()->GetAxis(4)->SetRangeUser(0.39,0.51); // only MIP pions
1014 fGainMIP->GetHistGainTime()->GetAxis(3)->SetRangeUser(125,250);// only full tracking region (driftlength)
1015 fGainMIP->GetHistGainTime()->GetAxis(0)->SetRangeUser(1.5,3.5);// only full tracking region (driftlength)
1017 TH3D * hist = fGainMIP->GetHistGainTime()->Projection(1, 0, 3);
1019 Double_t *xvec = new Double_t[hist->GetNbinsX()];
1020 Double_t *yvec = new Double_t[hist->GetNbinsX()];
1021 Double_t *xerr = new Double_t[hist->GetNbinsX()];
1022 Double_t *yerr = new Double_t[hist->GetNbinsX()];
1025 for(Int_t i=1; i < hist->GetNbinsX(); i++) {
1029 for (Int_t idelta=0; idelta<5; idelta++){
1031 imin = TMath::Max(i-idelta,1);
1032 imax = TMath::Min(i+idelta,hist->GetNbinsX());
1033 nsum = TMath::Nint(hist->Integral(imin,imax,1,hist->GetNbinsY()-1,1,hist->GetNbinsZ()-1));
1034 //if (nsum==0) break;
1035 if (nsum>minEntriesFit) break;
1037 if (nsum<minEntriesFit) continue;
1039 fGainMIP->GetHistGainTime()->GetAxis(1)->SetRangeUser(hist->GetXaxis()->GetBinCenter(imin-1),hist->GetXaxis()->GetBinCenter(imax+1)); // define time range
1040 TH2D * histZdep = fGainMIP->GetHistGainTime()->Projection(0,3);
1042 histZdep->FitSlicesY(0,0,-1,0,"QNR",&arr);
1043 TH1D * driftDep = (TH1D*)arr.At(1);
1045 //TGraphErrors * driftDep = AliTPCcalibBase::FitSlices(fGainMIP->GetHistGainTime(),0,3,100,1,0.,1);
1046 /*if (driftDep->GetN() < 4) {
1053 TF1 pol1("polynom1","pol1",125,240);
1054 //driftDep->Fit(&pol1,"QNRROB=0.8");
1055 driftDep->Fit(&pol1,"QNR");
1056 xvec[counter] = 0.5*(hist->GetXaxis()->GetBinCenter(imin-1)+hist->GetXaxis()->GetBinCenter(imax+1));
1057 yvec[counter] = pol1.GetParameter(1)/pol1.GetParameter(0);
1058 xerr[counter] = hist->GetXaxis()->GetBinCenter(imax+1)-hist->GetXaxis()->GetBinCenter(imin-1);
1059 yerr[counter] = pol1.GetParError(1)/pol1.GetParameter(0);
1065 fGraphAttachmentMIP = new TGraphErrors(counter, xvec, yvec, xerr, yerr);
1066 if (fGraphAttachmentMIP) fGraphAttachmentMIP->SetName("TGRAPHERRORS_MEAN_ATTACHMENT_BEAM_ALL");// set proper names according to naming convention
1067 fGainArray->AddLast(fGraphAttachmentMIP);
1075 if (counter < 1) return kFALSE;
1081 Bool_t AliTPCPreprocessorOffline::AnalyzePadRegionGain(){
1083 // Analyze gain for different pad regions - produce the calibration graphs 0,1,2
1087 TH2D * histQmax = (TH2D*) fGainMult->GetHistPadEqual()->Projection(0,2);
1088 TH2D * histQtot = (TH2D*) fGainMult->GetHistPadEqual()->Projection(1,2);
1091 histQmax->FitSlicesY(0,0,-1,0,"QNR",&arr);
1092 Double_t xMax[3] = {0,1,2};
1093 Double_t yMax[3] = {((TH1D*)arr.At(1))->GetBinContent(1),
1094 ((TH1D*)arr.At(1))->GetBinContent(2),
1095 ((TH1D*)arr.At(1))->GetBinContent(3)};
1096 Double_t yMaxErr[3] = {((TH1D*)arr.At(1))->GetBinError(1),
1097 ((TH1D*)arr.At(1))->GetBinError(2),
1098 ((TH1D*)arr.At(1))->GetBinError(3)};
1099 TGraphErrors * fitPadRegionQmax = new TGraphErrors(3, xMax, yMax, 0, yMaxErr);
1101 histQtot->FitSlicesY(0,0,-1,0,"QNR",&arr);
1102 Double_t xTot[3] = {0,1,2};
1103 Double_t yTot[3] = {((TH1D*)arr.At(1))->GetBinContent(1),
1104 ((TH1D*)arr.At(1))->GetBinContent(2),
1105 ((TH1D*)arr.At(1))->GetBinContent(3)};
1106 Double_t yTotErr[3] = {((TH1D*)arr.At(1))->GetBinError(1),
1107 ((TH1D*)arr.At(1))->GetBinError(2),
1108 ((TH1D*)arr.At(1))->GetBinError(3)};
1109 TGraphErrors * fitPadRegionQtot = new TGraphErrors(3, xTot, yTot, 0, yTotErr);
1111 fitPadRegionQtot->SetName("TGRAPHERRORS_MEANQTOT_PADREGIONGAIN_BEAM_ALL");// set proper names according to naming convention
1112 fitPadRegionQmax->SetName("TGRAPHERRORS_MEANQMAX_PADREGIONGAIN_BEAM_ALL");// set proper names according to naming convention
1114 fGainArray->AddLast(fitPadRegionQtot);
1115 fGainArray->AddLast(fitPadRegionQmax);
1123 Bool_t AliTPCPreprocessorOffline::AnalyzeGainMultiplicity() {
1125 // Analyze gain as a function of multiplicity and produce calibration graphs
1127 if (!fGainMult) return kFALSE;
1128 fGainMult->GetHistGainMult()->GetAxis(3)->SetRangeUser(3,3);
1129 TH2D * histMultMax = fGainMult->GetHistGainMult()->Projection(0,4);
1130 TH2D * histMultTot = fGainMult->GetHistGainMult()->Projection(1,4);
1131 histMultMax->RebinX(4);
1132 histMultTot->RebinX(4);
1136 histMultMax->FitSlicesY(0,0,-1,0,"QNR",&arrMax);
1137 histMultTot->FitSlicesY(0,0,-1,0,"QNR",&arrTot);
1139 TH1D * meanMax = (TH1D*)arrMax.At(1);
1140 TH1D * meanTot = (TH1D*)arrTot.At(1);
1141 Float_t meanMult = histMultMax->GetMean();
1142 if(meanMax->GetBinContent(meanMax->FindBin(meanMult))) {
1143 meanMax->Scale(1./meanMax->GetBinContent(meanMax->FindBin(meanMult)));
1148 if(meanTot->GetBinContent(meanTot->FindBin(meanMult))) {
1149 meanTot->Scale(1./meanTot->GetBinContent(meanTot->FindBin(meanMult)));
1154 Float_t xMultMax[50];
1155 Float_t yMultMax[50];
1156 Float_t yMultErrMax[50];
1157 Float_t xMultTot[50];
1158 Float_t yMultTot[50];
1159 Float_t yMultErrTot[50];
1161 Int_t nCountMax = 0;
1162 for(Int_t iBin = 1; iBin < meanMax->GetXaxis()->GetNbins(); iBin++) {
1163 Float_t yValMax = meanMax->GetBinContent(iBin);
1164 if (yValMax < 0.7) continue;
1165 if (yValMax > 1.3) continue;
1166 if (meanMax->GetBinError(iBin)/yValMax > 0.01) continue;
1167 xMultMax[nCountMax] = meanMax->GetXaxis()->GetBinCenter(iBin);
1168 yMultMax[nCountMax] = yValMax;
1169 yMultErrMax[nCountMax] = meanMax->GetBinError(iBin);
1173 if (nCountMax < 10) return kFALSE;
1174 TGraphErrors * fitMultMax = new TGraphErrors(nCountMax, xMultMax, yMultMax, 0, yMultErrMax);
1175 fitMultMax->SetName("TGRAPHERRORS_MEANQMAX_MULTIPLICITYDEPENDENCE_BEAM_ALL");
1177 Int_t nCountTot = 0;
1178 for(Int_t iBin = 1; iBin < meanTot->GetXaxis()->GetNbins(); iBin++) {
1179 Float_t yValTot = meanTot->GetBinContent(iBin);
1180 if (yValTot < 0.7) continue;
1181 if (yValTot > 1.3) continue;
1182 if (meanTot->GetBinError(iBin)/yValTot > 0.1) continue;
1183 xMultTot[nCountTot] = meanTot->GetXaxis()->GetBinCenter(iBin);
1184 yMultTot[nCountTot] = yValTot;
1185 yMultErrTot[nCountTot] = meanTot->GetBinError(iBin);
1189 if (nCountTot < 10) return kFALSE;
1190 TGraphErrors * fitMultTot = new TGraphErrors(nCountTot, xMultTot, yMultTot, 0, yMultErrTot);
1191 fitMultTot->SetName("TGRAPHERRORS_MEANQTOT_MULTIPLICITYDEPENDENCE_BEAM_ALL");
1193 fGainArray->AddLast(fitMultMax);
1194 fGainArray->AddLast(fitMultTot);
1200 Bool_t AliTPCPreprocessorOffline::AnalyzeGainChamberByChamber(){
1202 // get chamber by chamber gain
1204 if (!fGainMult) return kFALSE;
1205 TGraphErrors *grShort = fGainMult->GetGainPerChamber(0);
1206 TGraphErrors *grMedium = fGainMult->GetGainPerChamber(1);
1207 TGraphErrors *grLong = fGainMult->GetGainPerChamber(2);
1208 if (grShort==0x0 || grMedium==0x0 || grLong==0x0) {
1215 fGainArray->AddLast(grShort);
1216 fGainArray->AddLast(grMedium);
1217 fGainArray->AddLast(grLong);
1222 void AliTPCPreprocessorOffline::UpdateOCDBGain(Int_t startRunNumber, Int_t endRunNumber, AliCDBStorage *storage){
1224 // Update OCDB entry
1226 AliCDBMetaData *metaData= new AliCDBMetaData();
1227 metaData->SetObjectClassName("TObjArray");
1228 metaData->SetResponsible("Alexander Kalweit");
1229 metaData->SetBeamPeriod(1);
1230 metaData->SetAliRootVersion("05-24-00"); //root version
1231 metaData->SetComment("Calibration of the time dependence of the gain due to pressure and temperature changes.");
1232 AliCDBId id1("TPC/Calib/TimeGain", startRunNumber, endRunNumber);
1233 storage->Put(fGainArray, id1, metaData);
1236 void AliTPCPreprocessorOffline::MakeQAPlot(Float_t FPtoMIPratio) {
1238 // Make QA plot to visualize results
1243 TCanvas * canvasCosmic = new TCanvas("gain Cosmic", "time dependent gain QA histogram cosmic");
1245 TH2D * gainHistoCosmic = fGainCosmic->GetHistGainTime()->Projection(0,1);
1246 gainHistoCosmic->SetDirectory(0);
1247 gainHistoCosmic->SetName("GainHistoCosmic");
1248 gainHistoCosmic->GetXaxis()->SetTimeDisplay(kTRUE);
1249 gainHistoCosmic->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}");
1250 gainHistoCosmic->Draw("colz");
1251 fGraphCosmic->SetMarkerStyle(25);
1252 fGraphCosmic->Draw("lp");
1253 fGraphCosmic->SetMarkerStyle(25);
1254 TGraph * grfFitCosmic = fFitCosmic->MakeGraph(fGraphCosmic->GetX()[0],fGraphCosmic->GetX()[fGraphCosmic->GetN()-1],50000,0);
1256 for(Int_t i=0; i < grfFitCosmic->GetN(); i++) {
1257 grfFitCosmic->GetY()[i] *= FPtoMIPratio;
1259 for(Int_t i=0; i < fGraphCosmic->GetN(); i++) {
1260 fGraphCosmic->GetY()[i] *= FPtoMIPratio;
1263 fGraphCosmic->Draw("lp");
1265 grfFitCosmic->SetLineColor(2);
1266 grfFitCosmic->Draw("lu");
1268 fGainArray->AddLast(gainHistoCosmic);
1269 //fGainArray->AddLast(canvasCosmic->Clone());
1270 delete canvasCosmic;
1273 TCanvas * canvasMIP = new TCanvas("gain MIP", "time dependent gain QA histogram MIP");
1275 TH2D * gainHistoMIP = fGainMIP->GetHistGainTime()->Projection(0,1);
1276 gainHistoMIP->SetName("GainHistoCosmic");
1277 gainHistoMIP->SetDirectory(0);
1278 gainHistoMIP->GetXaxis()->SetTimeDisplay(kTRUE);
1279 gainHistoMIP->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}");
1280 gainHistoMIP->Draw("colz");
1281 fGraphMIP->SetMarkerStyle(25);
1282 fGraphMIP->Draw("lp");
1283 TGraph * grfFitMIP = fFitMIP->MakeGraph(fGraphMIP->GetX()[0],fGraphMIP->GetX()[fGraphMIP->GetN()-1],50000,0);
1284 grfFitMIP->SetLineColor(2);
1285 grfFitMIP->Draw("lu");
1286 fGainArray->AddLast(gainHistoMIP);
1287 //fGainArray->AddLast(canvasMIP->Clone());
1292 void AliTPCPreprocessorOffline::MakeFitTime(){
1294 // make aligment fit - store results in the file
1296 const Int_t kMinEntries=1000;
1298 MakePrimitivesTime();
1299 if (!fAlignTree) return;
1300 if (fAlignTree->GetEntries()<kMinEntries) return;
1301 fAlignTree->SetAlias("ptype","type");
1302 fAlignTree->SetAlias("hasITS","(1+0)");
1303 fAlignTree->SetAlias("dITS","1-2*(refX<40)");
1304 fAlignTree->SetAlias("isITS","refX>10");
1305 fAlignTree->SetAlias("isVertex","refX<10");
1307 Int_t npointsMax=30000000;
1308 TStatToolkit toolkit;
1314 TString fstringFast="";
1315 fstringFast+="FExBTwistX++";
1316 fstringFast+="FExBTwistY++";
1317 fstringFast+="FAlignRot0D++";
1318 fstringFast+="FAlignTrans0D++";
1319 fstringFast+="FAlignTrans1D++";
1321 fstringFast+="hasITS*FAlignTrans0++";
1322 fstringFast+="hasITS*FAlignTrans1++";
1323 fstringFast+="hasITS*FAlignRot0++";
1324 fstringFast+="hasITS*FAlignRot1++";
1325 fstringFast+="hasITS*FAlignRot2++";
1327 fstringFast+="dITS*FAlignTrans0++";
1328 fstringFast+="dITS*FAlignTrans1++";
1329 fstringFast+="dITS*FAlignRot0++";
1330 fstringFast+="dITS*FAlignRot1++";
1331 fstringFast+="dITS*FAlignRot2++";
1333 TCut cutFit="entries>10&&abs(mean)>0.00001&&rms>0";
1334 fAlignTree->SetAlias("err","rms");
1336 TString *strDeltaITS = TStatToolkit::FitPlaneConstrain(fAlignTree,"mean:err", fstringFast.Data(),cutFit, chi2,npoints,param,covar,-1,0, npointsMax, 1);
1337 strDeltaITS->Tokenize("++")->Print();
1338 fAlignTree->SetAlias("fitYFast",strDeltaITS->Data());
1340 TVectorD paramC= param;
1341 TMatrixD covarC= covar;
1342 TStatToolkit::Constrain1D(fstringFast,"Trans0D",paramC,covarC,0, 0.1);
1343 TStatToolkit::Constrain1D(fstringFast,"Trans1D",paramC,covarC,0, 0.1);
1344 TStatToolkit::Constrain1D(fstringFast,"TwistX",paramC,covarC,0, 0.1);
1345 TStatToolkit::Constrain1D(fstringFast,"TwistY",paramC,covarC,0, 0.1);
1346 TString strFitConst=TStatToolkit::MakeFitString(fstringFast, paramC,covar);
1347 fAlignTree->SetAlias("fitYFastC",strFitConst.Data());
1348 CreateAlignTime(fstringFast,paramC);
1354 void AliTPCPreprocessorOffline::MakeChainTime(){
1358 TFile f("CalibObjects.root");
1360 // const char *cdtype[7]={"ITS","TRD","Vertex","TOF","TPC","TPC0","TPC1"};
1361 //const char *cptype[5]={"dy","dz","dsnp","dtheta","d1pt"};
1362 const char * hname[5]={"dy","dz","dsnp","dtheta","d1pt"};
1364 AliTPCcalibTime *calibTime = 0;
1365 TObjArray * array = (TObjArray*)f.Get("TPCCalib");
1367 calibTime = (AliTPCcalibTime *)array->FindObject("calibTime");
1369 calibTime = (AliTPCcalibTime*)f.Get("calibTime");
1371 if (!calibTime) return;
1372 AliTPCCorrectionFit::CreateAlignMaps(AliTracker::GetBz(), run);
1373 TTreeSRedirector *pcstream = new TTreeSRedirector("meanITSVertex.root");
1376 THnSparse *his = calibTime->GetResHistoTPCITS(ihis);
1378 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1379 his->GetAxis(2)->SetRange(0,1000000);
1380 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1381 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("ITS%s",hname[ihis]),run,85.,ihis,3);
1384 his = calibTime->GetResHistoTPCITS(ihis);
1386 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1387 his->GetAxis(2)->SetRange(0,1000000);
1388 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1389 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("ITS%s",hname[ihis]),run,85.,ihis,3);
1392 his = calibTime->GetResHistoTPCITS(ihis);
1394 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1395 his->GetAxis(2)->SetRange(0,1000000);
1396 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1397 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("ITS%s",hname[ihis]),run,85.,ihis,3);
1400 his = calibTime->GetResHistoTPCvertex(ihis);
1402 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1403 his->GetAxis(2)->SetRange(0,1000000);
1404 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1405 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("Vertex%s",hname[ihis]),run,0.,ihis,3);
1408 his = calibTime->GetResHistoTPCvertex(ihis);
1410 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1411 his->GetAxis(2)->SetRange(0,1000000);
1412 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1413 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("Vertex%s",hname[ihis]),run,0.,ihis,3);
1417 his = calibTime->GetResHistoTPCvertex(ihis);
1419 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1420 his->GetAxis(2)->SetRange(0,1000000);
1421 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1422 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("Vertex%s",hname[ihis]),run,0.,ihis,3);
1426 his = calibTime->GetResHistoTPCTOF(ihis);
1428 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1429 his->GetAxis(2)->SetRange(0,1000000);
1430 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1431 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("TOF%s",hname[ihis]),run,0.,ihis,3);
1435 his = calibTime->GetResHistoTPCTRD(ihis);
1437 his->GetAxis(1)->SetRangeUser(-1.1,1.1);
1438 his->GetAxis(2)->SetRange(0,1000000);
1439 his->GetAxis(3)->SetRangeUser(-0.35,0.35);
1440 AliTPCCorrection::MakeDistortionMap(his,pcstream, Form("TRD%s",hname[ihis]),run,0.,ihis,3);
1447 Double_t AliTPCPreprocessorOffline::EvalAt(Double_t phi, Double_t refX, Double_t theta, Int_t corr, Int_t ptype){
1451 Double_t sector = 9*phi/TMath::Pi();
1452 if (sector<0) sector+=18;
1453 Double_t y85=AliTPCCorrection::GetCorrSector(sector,85,theta,1,corr);
1454 Double_t y245=AliTPCCorrection::GetCorrSector(sector,245,theta,1,corr);
1455 if (ptype==0) return y85+(y245-y85)*(refX-85.)/(245.-85.);
1456 if (ptype==2) return (y245-y85)/(245.-85.);
1461 Double_t AliTPCPreprocessorOffline::EvalAtPar(Double_t phi0, Double_t snp, Double_t refX, Double_t theta, Int_t corr, Int_t ptype, Int_t nsteps){
1463 // Fit the distortion along the line with the parabolic model
1465 // phi0 - phi at the entrance of the TPC
1466 // snp - local inclination angle at the entrance of the TPC
1467 // refX - ref X where the distortion is evanluated
1470 static TLinearFitter fitter(3,"pol2");
1471 fitter.ClearPoints();
1472 if (nsteps<3) nsteps=3;
1473 Double_t deltaX=(245-85)/(nsteps);
1474 for (Int_t istep=0; istep<(nsteps+1); istep++){
1476 Double_t localX =85.+deltaX*istep;
1477 Double_t localPhi=phi0+deltaX*snp*istep;
1478 Double_t sector = 9*localPhi/TMath::Pi();
1479 if (sector<0) sector+=18;
1480 Double_t y=AliTPCCorrection::GetCorrSector(sector,localX,theta,1,corr);
1481 Double_t dlocalX=AliTPCCorrection::GetCorrSector(sector,localX,theta,0,corr);
1482 Double_t x[1]={localX-dlocalX};
1483 fitter.AddPoint(x,y);
1487 par[0]=fitter.GetParameter(0);
1488 par[1]=fitter.GetParameter(1);
1489 par[2]=fitter.GetParameter(2);
1491 if (ptype==0) return par[0]+par[1]*refX+par[2]*refX*refX;
1492 if (ptype==2) return par[1]+2*par[2]*refX;
1493 if (ptype==4) return par[2];
1502 void AliTPCPreprocessorOffline::MakePrimitivesTime(){
1504 // Create primitive transformation to fit
1506 fAlignTree=new TChain("fit","fit");
1507 fAlignTree->AddFile("meanITSVertex.root",10000000,"ITSdy");
1508 fAlignTree->AddFile("meanITSVertex.root",10000000,"ITSdsnp");
1509 fAlignTree->AddFile("meanITSVertex.root",10000000,"Vertexdy");
1510 fAlignTree->AddFile("meanITSVertex.root",10000000,"Vertexdsnp");
1512 AliTPCParam *param= AliTPCcalibDB::Instance()->GetParameters();
1513 Double_t bzField=AliTrackerBase::GetBz();
1514 Double_t vdrift = param->GetDriftV()/1000000.; // [cm/us] // From dataBase: to be updated: per second (ideally)
1515 Double_t ezField = 400; // [V/cm] // to be updated: never (hopefully)
1516 Double_t wtP = -10.0 * (bzField) * vdrift / ezField ;
1517 AliTPCExBTwist *fitExBTwistX= new AliTPCExBTwist;
1518 AliTPCExBTwist *fitExBTwistY= new AliTPCExBTwist;
1519 AliTPCCalibGlobalMisalignment *trans0 =new AliTPCCalibGlobalMisalignment;
1520 AliTPCCalibGlobalMisalignment *trans1 =new AliTPCCalibGlobalMisalignment;
1521 AliTPCCalibGlobalMisalignment *trans0D =new AliTPCCalibGlobalMisalignment;
1522 AliTPCCalibGlobalMisalignment *trans1D =new AliTPCCalibGlobalMisalignment;
1523 AliTPCCalibGlobalMisalignment *rot0 =new AliTPCCalibGlobalMisalignment;
1524 AliTPCCalibGlobalMisalignment *rot1 =new AliTPCCalibGlobalMisalignment;
1525 AliTPCCalibGlobalMisalignment *rot2 =new AliTPCCalibGlobalMisalignment;
1526 AliTPCCalibGlobalMisalignment *rot3 =new AliTPCCalibGlobalMisalignment;
1529 fitExBTwistX->SetXTwist(0.001);
1530 fitExBTwistX->SetOmegaTauT1T2(wtP,1,1);
1532 fitExBTwistY->SetYTwist(0.001);
1533 fitExBTwistY->SetOmegaTauT1T2(wtP,1,1);
1535 TGeoHMatrix *matrixRot = new TGeoHMatrix;
1536 TGeoHMatrix *matrixX = new TGeoHMatrix;
1537 TGeoHMatrix *matrixY = new TGeoHMatrix;
1538 matrixX->SetDx(0.1);
1539 matrixY->SetDy(0.1);
1540 Double_t rotAngles0[9]={0};
1541 Double_t rotAngles1[9]={0};
1542 Double_t rotAngles2[9]={0};
1544 Double_t rotAngles3[9]={0};
1546 rotAngles0[0]=1; rotAngles0[4]=1; rotAngles0[8]=1;
1547 rotAngles1[0]=1; rotAngles1[4]=1; rotAngles1[8]=1;
1548 rotAngles2[0]=1; rotAngles2[4]=1; rotAngles2[8]=1;
1549 rotAngles3[0]=1; rotAngles3[4]=1; rotAngles3[8]=1;
1551 rotAngles0[1]=-0.001;rotAngles0[3]=0.001;
1552 rotAngles1[5]=-0.001;rotAngles1[7]=0.001;
1553 rotAngles2[2]=0.001;rotAngles2[6]=-0.001;
1554 rotAngles3[1]=0.001;rotAngles3[3]=-0.001;
1555 matrixRot->SetRotation(rotAngles0);
1556 rot0->SetAlignGlobal(matrixRot);
1557 matrixRot->SetRotation(rotAngles1);
1558 rot1->SetAlignGlobal(matrixRot);
1559 matrixRot->SetRotation(rotAngles2);
1560 rot2->SetAlignGlobal(matrixRot);
1561 matrixRot->SetRotation(rotAngles3);
1562 rot3->SetAlignGlobalDelta(matrixRot);
1564 trans0->SetAlignGlobal(matrixX);
1565 trans1->SetAlignGlobal(matrixY);
1566 trans0D->SetAlignGlobalDelta(matrixX);
1567 trans1D->SetAlignGlobalDelta(matrixY);
1568 fitExBTwistX->Init();
1569 fitExBTwistY->Init();
1571 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(fitExBTwistX->Clone()),100);
1572 fitExBTwistY->AddVisualCorrection((AliTPCExBTwist*)(fitExBTwistY->Clone()),101);
1574 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(rot0->Clone()),102);
1575 fitExBTwistY->AddVisualCorrection((AliTPCExBTwist*)(rot1->Clone()),103);
1576 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(rot2->Clone()),104);
1577 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(rot3->Clone()),105);
1579 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(trans0->Clone()),106);
1580 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(trans1->Clone()),107);
1581 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(trans0D->Clone()),108);
1582 fitExBTwistX->AddVisualCorrection((AliTPCExBTwist*)(trans1D->Clone()),109);
1584 fAlignTree->SetAlias("FExBTwistX", "AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,100,ptype)+0");
1585 fAlignTree->SetAlias("FExBTwistY","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,101,ptype)+0");
1586 fAlignTree->SetAlias("FAlignRot0","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,102,ptype)+0");
1587 fAlignTree->SetAlias("FAlignRot0D","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,105,ptype)+0");
1588 fAlignTree->SetAlias("FAlignRot1","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,103,ptype)+0");
1589 fAlignTree->SetAlias("FAlignRot2","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,104,ptype)+0");
1590 fAlignTree->SetAlias("FAlignTrans0","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,106,ptype)+0");
1591 fAlignTree->SetAlias("FAlignTrans1","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,107,ptype)+0");
1592 fAlignTree->SetAlias("FAlignTrans0D","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,108,ptype)+0");
1593 fAlignTree->SetAlias("FAlignTrans1D","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,109,ptype)+0");
1595 // test fast function
1597 // fAlignTree->Draw("FExBTwistX:ExBTwistX","isITS&&ptype==0&&abs(snp)<0.05","");
1598 // fAlignTree->Draw("FExBTwistY:ExBTwistY","isITS&&ptype==0&&abs(snp)<0.05","");
1599 // fAlignTree->Draw("FAlignRot0:alignRot0","isITS&&ptype==0&&abs(snp)<0.05","");
1600 // fAlignTree->Draw("FAlignRot1:alignRot1","isITS&&ptype==0&&abs(snp)<0.05","");
1601 // fAlignTree->Draw("FAlignRot2:alignRot2","isITS&&ptype==0&&abs(snp)<0.05","");
1603 // fAlignTree->Draw("FAlignTrans0:alignTrans0","isITS&&ptype==0&&abs(snp)<0.05","");
1604 // fAlignTree->Draw("FAlignTrans1:alignTrans1","isITS&&ptype==0&&abs(snp)<0.05","");
1609 void AliTPCPreprocessorOffline::CreateAlignTime(TString fstring, TVectorD paramC){
1614 TGeoHMatrix *matrixDelta = new TGeoHMatrix;
1615 TGeoHMatrix *matrixGlobal = new TGeoHMatrix;
1616 Double_t rAngles[9];
1619 index=TStatToolkit::GetFitIndex(fstring,"FAlignTrans0D");
1620 if (index>=0) matrixDelta->SetDx(paramC[index+1]*0.1);
1621 index=TStatToolkit::GetFitIndex(fstring,"FAlignTrans1D");
1622 if (index>=0) matrixDelta->SetDy(paramC[index+1]*0.1);
1623 rAngles[0]=1; rAngles[4]=1; rAngles[8]=1;
1624 index=TStatToolkit::GetFitIndex(fstring,"FAlignRot0D");
1625 rAngles[1]=-paramC[index+1]*0.001; rAngles[3]=paramC[index+1]*0.001;
1626 rAngles[5]=0; rAngles[7] =0;
1627 rAngles[2]=0; rAngles[6] =0;
1628 matrixDelta->SetRotation(rAngles);
1632 index=TStatToolkit::GetFitIndex(fstring,"hasITS*FAlignTrans0");
1633 if (index>=0) matrixGlobal->SetDx(paramC[index+1]*0.1);
1634 index=TStatToolkit::GetFitIndex(fstring,"hasITS*FAlignTrans1");
1635 if (index>=0) matrixGlobal->SetDy(paramC[index+1]*0.1);
1636 rAngles[0]=1; rAngles[4]=1; rAngles[8]=1;
1637 index=TStatToolkit::GetFitIndex(fstring,"hasITS*FAlignRot0");
1638 rAngles[1]=-paramC[index+1]*0.001; rAngles[3]=paramC[index+1]*0.001;
1639 index=TStatToolkit::GetFitIndex(fstring,"hasITS*FAlignRot1");
1640 rAngles[5]=-paramC[index+1]*0.001; rAngles[7]=paramC[index+1]*0.001;
1641 index=TStatToolkit::GetFitIndex(fstring,"hasITS*FAlignRot2");
1642 rAngles[2]=paramC[index+1]*0.001; rAngles[6] =-paramC[index+1]*0.001;
1643 matrixGlobal->SetRotation(rAngles);
1645 AliTPCCalibGlobalMisalignment *fitAlignTime =0;
1646 fitAlignTime =new AliTPCCalibGlobalMisalignment;
1647 fitAlignTime->SetName("FitAlignTime");
1648 fitAlignTime->SetTitle("FitAlignTime");
1649 fitAlignTime->SetAlignGlobalDelta(matrixDelta);
1650 fitAlignTime->SetAlignGlobal(matrixGlobal);
1652 AliTPCExBTwist * fitExBTwist= new AliTPCExBTwist;
1653 Int_t indexX=TStatToolkit::GetFitIndex(fstring,"ExBTwistX");
1654 Int_t indexY=TStatToolkit::GetFitIndex(fstring,"ExBTwistY");
1655 fitExBTwist->SetXTwist(0.001*paramC[indexX+1]); // 1 mrad twist in x
1656 fitExBTwist->SetYTwist(0.001*paramC[indexY+1]); // 1 mrad twist in x
1657 fitExBTwist->SetName("FitExBTwistTime");
1658 fitExBTwist->SetTitle("FitExBTwistTime");
1659 AliTPCParam *param= AliTPCcalibDB::Instance()->GetParameters();
1660 Double_t bzField=AliTrackerBase::GetBz();
1661 Double_t vdrift = param->GetDriftV()/1000000.; // [cm/us] // From dataBase: to be updated: per second (ideally)
1663 Double_t ezField = 400; // [V/cm] // to be updated: never (hopefully)
1664 Double_t wt = -10.0 * (bzField) * vdrift / ezField ;
1666 fitExBTwist->SetOmegaTauT1T2(wt,1,1);
1667 fitExBTwist->Init();
1669 AliTPCComposedCorrection *corrTime = new AliTPCComposedCorrection;
1670 TObjArray *arr = new TObjArray;
1671 corrTime->SetCorrections(arr);
1673 corrTime->GetCorrections()->Add(fitExBTwist);
1674 corrTime->GetCorrections()->Add(fitAlignTime);
1675 corrTime->SetName("FitCorrectionTime");
1676 corrTime->SetTitle("FitCorrectionTime");
1678 fitExBTwist->AddVisualCorrection((AliTPCExBTwist*)(fitExBTwist->Clone()),1001);
1679 fitAlignTime->AddVisualCorrection((AliTPCExBTwist*)(fitAlignTime->Clone()),1002);
1680 fitAlignTime->AddVisualCorrection((AliTPCExBTwist*)(corrTime->Clone()),1003);
1683 fAlignTree->SetAlias("ExBTwistTime","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,1001,ptype)+0");
1684 fAlignTree->SetAlias("AlignTime","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,1002,ptype)+0");
1685 fAlignTree->SetAlias("FitCorrectionTime","AliTPCPreprocessorOffline::EvalAt(phi,refX,theta,1003,ptype)+0");
1688 TFile *f = new TFile("fitITSVertex.root","update");
1689 corrTime->Write("FitCorrectionTime");
1693 //_____________________________________________________________________________
1694 Int_t AliTPCPreprocessorOffline::GetStatus()
1696 //get the calibration status
1698 // positive numbers invalidate for unknown reasons.
1699 // negative numbers invalidate with a known reason (e.g. low statistics).
1700 // the returned integer has one bit set for every component that failed.
1702 Bool_t enoughStatistics = (fNtracksVdrift>fMinTracksVdrift && fNeventsVdrift>fMinEventsVdrift);
1704 if (!enoughStatistics)
1706 fCalibrationStatus=-TMath::Abs(fCalibrationStatus);
1709 return fCalibrationStatus;