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 **************************************************************************/
16 ////////////////////////////////////////////////////////////////////////////
19 // Gain calibration using tracks
22 // 1.) Inner TPC gain alignement - (parabolic) parameterization (inside of one sector)
23 // 2.) Angular and z-position correction (parabolic) parameterization
24 // 3.) Sector gain alignment
26 // Following histograms are accumulated
27 // a.) Simple 1D histograms per chamber
28 // b.) Profile histograms per chamber - local x dependence
29 // c.) 2D Profile histograms - local x - fi dependence
31 // To get the gain map - the simple solution - use the histograms - is not enough
32 // The resulting mean amplitude map depends strongly on the track topology
33 // These dependence can be reduced, taking into account angular effect, and diffusion effect
34 // Using proper fit modeles
39 // === Calibration class for gain calibration using tracks ===
43 // A 6-parametric parabolic function
45 // G(x, y) = p0 + p1*x + p2*y + p3*x^2 + p4*y^2 + p5 * x*y
47 // is fitted to the maximum charge values or total charge values of
48 // all the clusters contained in the tracks that are added to this
49 // object. This fit is performed for each read out chamber, in fact even
50 // for each type of pad sizes (thus for one segment, which consists of
51 // an IROC and an OROC, there are three fitters used, corresponding to
52 // the three pad sizes). The coordinate origin is at the center of the
53 // particular pad size region on each ROC.
55 // Because of the Landau nature of the charge deposition we use
56 // different "types" of fitters instead of one to minimize the effect
57 // of the long Landau tail. The difference between the fitters is only
58 // the charge value, that is put into them, i.e. the charge is subject
59 // to a transformation. At this point we use three different fit types:
61 // a) simple: the charge is put in as it is
62 // b) sqrt: the square root of the charge is put into the fitter
63 // c) log: fgkM * Log(1+q/fgkM) is put into the fitter, with
64 // q being the untransformed charge and fgkM=25
66 // The results of the fits may be visualized and further used by
67 // creating an AliTPCCalROC or AliTPCCalPad. You may specify to undo
68 // the transformation and/or to normalize to the pad size.
70 // Not every track you add to this object is actually used for
71 // calibration. There are some cuts and conditions to exclude bad
72 // tracks, e.g. a pt cut to cut out tracks with too much charge
73 // deposition or a cut on edge clusters which are not fully
74 // registered and don't give a usable signal.
76 // 2) Interface / usage
77 // ====================
78 // For each track to be added you need to call Process().
79 // This method expects an AliTPCseed, which contains the necessary
80 // cluster information. At the moment of writing this information
81 // is stored in an AliESDfriend corresponding to an AliESD.
82 // You may also call AddTrack() if you don't want the cuts and
83 // other quality conditions to kick in (thus forcing the object to
84 // accept the track) or AddCluster() for adding single clusters.
85 // Call one of the Evaluate functions to evaluate the fitter(s) and
86 // to retrieve the fit parameters, erros and so on. You can also
87 // do this later on by using the different Getters.
89 // The visualization methods CreateFitCalPad() and CreateFitCalROC()
90 // are straight forward to use.
92 // Note: If you plan to write this object to a ROOT file, make sure
93 // you evaluate all the fitters *before* writing, because due
94 // to a bug in the fitter component writing fitters doesn't
95 // work properly (yet). Be aware that you cannot re-evaluate
96 // the fitters after loading this object from file.
97 // (This will be gone for a new ROOT version > v5-17-05)
99 ////////////////////////////////////////////////////////////////////////////
101 #include <TPDGCode.h>
104 #include "TMatrixD.h"
105 #include "TTreeStream.h"
107 #include "AliTPCParamSR.h"
108 #include "AliTPCClusterParam.h"
109 #include "AliTrackPointArray.h"
111 #include "AliTPCcalibTracksGain.h"
114 #include <TLinearFitter.h>
115 #include <TTreeStream.h>
117 #include <TCollection.h>
118 #include <TIterator.h>
124 #include "AliMathBase.h"
126 #include "AliTPCROC.h"
127 #include "AliTPCParamSR.h"
128 #include "AliTPCCalROC.h"
129 #include "AliTPCCalPad.h"
131 #include "AliTracker.h"
133 #include "AliESDtrack.h"
134 #include "AliESDfriend.h"
135 #include "AliESDfriendTrack.h"
136 #include "AliTPCseed.h"
137 #include "AliTPCclusterMI.h"
138 #include "AliTPCcalibTracksCuts.h"
139 #include "AliTPCFitPad.h"
141 // REMOVE ALL OF THIS
143 #include "AliESDEvent.h"
147 TFile f("TPCCalibTracksGain.root")
149 gSystem->Load("libPWG1.so")
155 TString * str = comp.FitPlane("Cl.fQ/dedxQ.fElements[0]","Cl.fY++Cl.fX","Cl.fDetector<36",chi2,vec,mat)
159 ClassImp(AliTPCcalibTracksGain)
161 const Bool_t AliTPCcalibTracksGain::fgkUseTotalCharge = kTRUE;
162 const Double_t AliTPCcalibTracksGain::fgkM = 25.;
163 const char* AliTPCcalibTracksGain::fgkDebugStreamFileName = "TPCCalibTracksGain.root";
164 AliTPCParamSR* AliTPCcalibTracksGain::fgTPCparam = new AliTPCParamSR();
166 AliTPCcalibTracksGain::AliTPCcalibTracksGain() :
168 fDebugStream(0), //! debug stream for debugging
169 fCuts(0), // cuts that are used for sieving the tracks used for calibration
171 // Simple Array of histograms
173 fArrayQM(0), // Qmax normalized
174 fArrayQT(0), // Qtot normalized
175 fProfileArrayQM(0), // Qmax normalized versus local X
176 fProfileArrayQT(0), // Qtot normalized versus local X
177 fProfileArrayQM2D(0), // Qmax normalized versus local X and phi
178 fProfileArrayQT2D(0), // Qtot normalized versus local X and phi
182 fSimpleFitter(0), // simple fitter for short pads
183 fSqrtFitter(0), // sqrt fitter for medium pads
184 fLogFitter(0), // log fitter for long pads
185 fFitter0M(0), // fitting of the atenuation, angular correction, and mean chamber gain
186 fFitter1M(0), // fitting of the atenuation, angular correction, and mean chamber gain
187 fFitter2M(0), // fitting of the atenuation, angular correction, and mean chamber gain
188 fFitter0T(0), // fitting of the atenuation, angular correction, and mean chamber gain
189 fFitter1T(0), // fitting of the atenuation, angular correction, and mean chamber gain
190 fFitter2T(0), // fitting of the atenuation, angular correction, and mean chamber gain
191 fSingleSectorFitter(0), // just for debugging
195 fTotalTracks(0), // just for debugging
196 fAcceptedTracks(0), // just for debugging
197 fDebugCalPadRaw(0), // just for debugging
198 fDebugCalPadCorr(0), // just for debugging
199 fPrevIter(0) // the calibration object in its previous iteration (will not be owned by the new object, don't forget to delete it!)
203 // Default constructor.
207 AliTPCcalibTracksGain::AliTPCcalibTracksGain(const AliTPCcalibTracksGain& obj) :
209 fDebugStream(0), //! debug stream for debugging
210 fCuts(obj.fCuts), // cuts that are used for sieving the tracks used for calibration
214 fProfileArrayQM(obj.fProfileArrayQM), // Qmax normalized versus local X
215 fProfileArrayQT(obj.fProfileArrayQT), // Qtot normalized versus local X
216 fProfileArrayQM2D(obj.fProfileArrayQM2D), // Qmax normalized versus local X and phi
217 fProfileArrayQT2D(obj.fProfileArrayQT2D), // Qtot normalized versus local X and phi
221 fSimpleFitter(obj.fSimpleFitter), // simple fitter for short pads
222 fSqrtFitter(obj.fSqrtFitter), // sqrt fitter for medium pads
223 fLogFitter(obj.fLogFitter), // log fitter for long pads
224 fFitter0M(obj.fFitter0M),
225 fFitter1M(obj.fFitter1M),
226 fFitter2M(obj.fFitter2M),
227 fFitter0T(obj.fFitter0T),
228 fFitter1T(obj.fFitter1T),
229 fFitter2T(obj.fFitter2T),
230 fSingleSectorFitter(obj.fSingleSectorFitter), // just for debugging
234 fTotalTracks(obj.fTotalTracks), // just for debugging
235 fAcceptedTracks(obj.fAcceptedTracks), // just for debugging
236 fDebugCalPadRaw(obj.fDebugCalPadRaw), // just for debugging
237 fDebugCalPadCorr(obj.fDebugCalPadCorr), // just for debugging
238 fPrevIter(obj.fPrevIter) // the calibration object in its previous iteration (will not be owned by the new object, don't forget to delete it!)
246 AliTPCcalibTracksGain& AliTPCcalibTracksGain::operator=(const AliTPCcalibTracksGain& rhs) {
248 // Assignment operator.
252 TNamed::operator=(rhs);
253 fDebugCalPadRaw = new AliTPCCalPad(*(rhs.fDebugCalPadRaw));
254 fDebugCalPadCorr = new AliTPCCalPad(*(rhs.fDebugCalPadCorr));
255 fSimpleFitter = new AliTPCFitPad(*(rhs.fSimpleFitter));
256 fSqrtFitter = new AliTPCFitPad(*(rhs.fSqrtFitter));
257 fLogFitter = new AliTPCFitPad(*(rhs.fLogFitter));
258 fSingleSectorFitter = new AliTPCFitPad(*(rhs.fSingleSectorFitter));
259 fPrevIter = new AliTPCcalibTracksGain(*(rhs.fPrevIter));
260 fCuts = new AliTPCcalibTracksCuts(*(rhs.fCuts));
265 AliTPCcalibTracksGain::AliTPCcalibTracksGain(const char* name, const char* title, AliTPCcalibTracksCuts* cuts, TNamed* debugStreamPrefix, AliTPCcalibTracksGain* prevIter) :
267 fDebugStream(0), //! debug stream for debugging
268 fCuts(0), // cuts that are used for sieving the tracks used for calibration
272 fProfileArrayQM(0), // Qmax normalized versus local X
273 fProfileArrayQT(0), // Qtot normalized versus local X
274 fProfileArrayQM2D(0), // Qmax normalized versus local X and phi
275 fProfileArrayQT2D(0), // Qtot normalized versus local X and phi
279 fSimpleFitter(0), // simple fitter for short pads
280 fSqrtFitter(0), // sqrt fitter for medium pads
281 fLogFitter(0), // log fitter for long pads
282 fFitter0M(0), // fitting of the atenuation, angular correction, and mean chamber gain
283 fFitter1M(0), // fitting of the atenuation, angular correction, and mean chamber gain
284 fFitter2M(0), // fitting of the atenuation, angular correction, and mean chamber gain
285 fFitter0T(0), // fitting of the atenuation, angular correction, and mean chamber gain
286 fFitter1T(0), // fitting of the atenuation, angular correction, and mean chamber gain
287 fFitter2T(0), // fitting of the atenuation, angular correction, and mean chamber gain
288 fSingleSectorFitter(0), // just for debugging
292 fTotalTracks(0), // just for debugging
293 fAcceptedTracks(0), // just for debugging
294 fDebugCalPadRaw(0), // just for debugging
295 fDebugCalPadCorr(0), // just for debugging
296 fPrevIter(0) // the calibration object in its previous iteration (will not be owned by the new object, don't forget to delete it!)
302 G__SetCatchException(0);
304 fPrevIter = prevIter;
306 // Fitter initialization
308 fSimpleFitter = new AliTPCFitPad(8, "hyp7", "");
309 fSqrtFitter = new AliTPCFitPad(8, "hyp7", "");
310 fLogFitter = new AliTPCFitPad(8, "hyp7", "");
311 fSingleSectorFitter = new AliTPCFitPad(8, "hyp7", "");
312 fFitter0M = new TLinearFitter(44,"hyp43");
313 fFitter1M = new TLinearFitter(44,"hyp43");
314 fFitter2M = new TLinearFitter(44,"hyp43");
315 fFitter0T = new TLinearFitter(44,"hyp43");
316 fFitter1T = new TLinearFitter(44,"hyp43");
317 fFitter2T = new TLinearFitter(44,"hyp43");
320 // Add profile histograms -JUST for visualization - Not used for real calibration
323 fArrayQM=new TObjArray(73); // Qmax normalized
324 fArrayQT=new TObjArray(73); // Qtot normalized
325 fProfileArrayQM = new TObjArray(37); // Qmax normalized versus local X
326 fProfileArrayQT = new TObjArray(37); // Qtot normalized versus local X
327 fProfileArrayQM2D = new TObjArray(37); // Qmax normalized versus local X and phi
328 fProfileArrayQT2D = new TObjArray(37); // Qtot normalized versus local X and phi
330 for (Int_t i=0; i<73; i++){
331 sprintf(hname,"QM_%d",i);
332 fArrayQM->AddAt(new TH1F(hname,hname,200,0,1000),i);
333 sprintf(hname,"QT_%d",i);
334 fArrayQT->AddAt(new TH1F(hname,hname,200,0,1000),i);
337 for (Int_t i=0; i<37;i++){
338 sprintf(hname,"QMvsx_%d",i);
339 fProfileArrayQM->AddAt(new TProfile(hname,hname,50,89,250),i);
340 sprintf(hname,"QTvsx_%d",i);
341 fProfileArrayQT->AddAt(new TProfile(hname,hname,50,89,250),i);
342 sprintf(hname,"QM2D_%d",i);
343 fProfileArrayQM2D->AddAt(new TProfile2D(hname,hname,50,89,250,10,-0.15,0.15),i);
344 sprintf(hname,"QT2D_%d",i);
345 fProfileArrayQT2D->AddAt(new TProfile2D(hname,hname,50,89,250,10,-0.15,0.15),i);
348 // just for debugging -counters
352 fDebugCalPadRaw = new AliTPCCalPad("DebugCalPadRaw", "All clusters simply added up before correction");
353 fDebugCalPadCorr = new AliTPCCalPad("DebugCalPadCorr", "All clusters simply added up after correction");
354 // this will be gone for the a new ROOT version > v5-17-05
355 for (UInt_t i = 0; i < 36; i++) {
356 fNShortClusters[i] = 0;
357 fNMediumClusters[i] = 0;
358 fNLongClusters[i] = 0;
362 AliTPCcalibTracksGain::~AliTPCcalibTracksGain() {
367 Info("Destructor","");
368 if (fSimpleFitter) delete fSimpleFitter;
369 if (fSqrtFitter) delete fSqrtFitter;
370 if (fLogFitter) delete fLogFitter;
371 if (fSingleSectorFitter) delete fSingleSectorFitter;
375 //fDebugStream->GetFile()->Close();
376 printf("Deleting debug stream object\n");
381 if (fDebugCalPadRaw) delete fDebugCalPadRaw;
382 if (fDebugCalPadCorr) delete fDebugCalPadCorr;
385 void AliTPCcalibTracksGain::Terminate(){
387 // Evaluate fitters and close the debug stream.
388 // Also move or copy the debug stream, if a debugStreamPrefix is provided.
398 void AliTPCcalibTracksGain::AddInfo(TChain* chain, char* debugStreamPrefix, char* prevIterFileName) {
400 // Add some parameters to the chain.
401 // debugStreamPrefix: If specified, contains the location (either normal or xrootd directory)
402 // where the debug stream is moved (normal directory) or copied to (xrootd).
403 // prevIterFileName: If specified, contains an AliTPCcalibTracksGain object from a previous run
404 // for doing an iterative calibration procedure (right now unused).
405 // Note: The parameters are *not* added to this class, you need to do it later by retrieving
406 // the parameters from the chain and passing them to the constructor!
409 if (debugStreamPrefix) {
410 TNamed* objDebugStreamPrefix = new TNamed("debugStreamPrefix", debugStreamPrefix);
411 chain->GetUserInfo()->AddLast((TObject*)objDebugStreamPrefix);
414 if (prevIterFileName) {
415 TFile paramFile(prevIterFileName);
416 if (paramFile.IsZombie()) {
417 printf("File %s not found. Continuing without previous iteration.\n", prevIterFileName);
421 AliTPCcalibTracksGain *prevIter = (AliTPCcalibTracksGain*)paramFile.Get("calibTracksGain");
423 chain->GetUserInfo()->AddLast((TObject*)prevIter);
425 printf("No calibTracksGain object found. Continuing without previous iteration.\n");
429 Bool_t AliTPCcalibTracksGain::AcceptTrack(AliTPCseed* track) {
431 // Decides whether to accept a track or not depending on track parameters and cuts
432 // contained as AliTPCcalibTracksCuts object fCuts.
433 // Tracks are discarded if the number of clusters is too low or the transverse
434 // momentum is too low.
435 // The corresponding cut values are specified in the fCuts member.
438 if (track->GetNumberOfClusters() < fCuts->GetMinClusters()) return kFALSE;
439 //if ((TMath::Abs(track->GetY() / track->GetX()) > fCuts->GetEdgeYXCutNoise())
440 // && (TMath::Abs(track->GetTgl()) < fCuts->GetEdgeThetaCutNoise())) return kFALSE;
441 //if (track->GetNumberOfClusters() / (track->GetNFoundable()+1.) < fCuts->GetMinRatio()) return kFALSE;
442 if (TMath::Abs(track->GetSigned1Pt()) > fCuts->GetMax1pt()) return kFALSE;
444 //if (track->GetPt() < 50.) return kFALSE;
448 void AliTPCcalibTracksGain::Process(AliTPCseed* seed) {
450 // Main method to be called when a new seed is supposed to be processed
451 // and be used for gain calibration. Its quality is checked before it
456 if (!AcceptTrack(seed)) return;
461 Long64_t AliTPCcalibTracksGain::Merge(TCollection *list) {
463 // Merge() merges the results of all AliTPCcalibTracksGain objects contained in
464 // list, thus allowing a distributed computation of several files, e.g. on PROOF.
465 // The merged results are merged with the data members of the AliTPCcalibTracksGain
466 // object used for calling the Merge method.
467 // The return value is 0 /*the total number of tracks used for calibration*/ if the merge
468 // is successful, otherwise it is -1.
471 if (!list || list->IsEmpty()) return -1;
473 if (!fSimpleFitter) fSimpleFitter = new AliTPCFitPad(8, "hyp7", "");
474 if (!fSqrtFitter) fSqrtFitter = new AliTPCFitPad(8, "hyp7", "");
475 if (!fLogFitter) fLogFitter = new AliTPCFitPad(8, "hyp7", "");
476 if (!fSingleSectorFitter) fSingleSectorFitter = new AliTPCFitPad(8, "hyp7", "");
479 // just for debugging
480 if (!fDebugCalPadRaw) fDebugCalPadRaw = new AliTPCCalPad("DebugCalPadRaw", "All clusters simply added up before correction");
481 if (!fDebugCalPadCorr) fDebugCalPadCorr = new AliTPCCalPad("DebugCalPadCorr", "All clusters simply added up after correction");
483 TIterator* iter = list->MakeIterator();
484 AliTPCcalibTracksGain* cal = 0;
486 while ((cal = (AliTPCcalibTracksGain*)iter->Next())) {
487 if (!cal->InheritsFrom(AliTPCcalibTracksGain::Class())) {
488 Error("Merge","Attempt to add object of class %s to a %s", cal->ClassName(), this->ClassName());
497 void AliTPCcalibTracksGain::Add(AliTPCcalibTracksGain* cal) {
499 // Adds another AliTPCcalibTracksGain object to this object.
502 fSimpleFitter->Add(cal->fSimpleFitter);
503 fSqrtFitter->Add(cal->fSqrtFitter);
504 fLogFitter->Add(cal->fLogFitter);
505 fSingleSectorFitter->Add(cal->fSingleSectorFitter);
509 fFitter0M->Add(cal->fFitter0M);
510 fFitter1M->Add(cal->fFitter1M);
511 fFitter2M->Add(cal->fFitter2M);
512 fFitter0T->Add(cal->fFitter0T);
513 fFitter1T->Add(cal->fFitter1T);
514 fFitter2T->Add(cal->fFitter2T);
519 for (Int_t i=0; i<73; i++){
521 his = (TH1F*)fArrayQM->At(i);
522 hism = (TH1F*)cal->fArrayQM->At(i);
523 if (his && hism) his->Add(hism);
524 his = (TH1F*)fArrayQT->At(i);
525 hism = (TH1F*)cal->fArrayQT->At(i);
526 if (his && hism) his->Add(hism);
530 for (Int_t i=0; i<37; i++){
532 his = (TProfile*)fProfileArrayQM->At(i);
533 hism = (TProfile*)cal->fProfileArrayQM->At(i);
534 if (his && hism) his->Add(hism);
535 his = (TProfile*)fProfileArrayQT->At(i);
536 hism = (TProfile*)cal->fProfileArrayQT->At(i);
537 if (his && hism) his->Add(hism);
541 for (Int_t i=0; i<37; i++){
542 TProfile2D *his,*hism;
543 his = (TProfile2D*)fProfileArrayQM2D->At(i);
544 hism = (TProfile2D*)cal->fProfileArrayQM2D->At(i);
545 if (his && hism) his->Add(hism);
546 his = (TProfile2D*)fProfileArrayQT2D->At(i);
547 hism = (TProfile2D*)cal->fProfileArrayQT2D->At(i);
548 if (his && hism) his->Add(hism);
551 // this will be gone for the a new ROOT version > v5-17-05
552 for (UInt_t iSegment = 0; iSegment < 36; iSegment++) {
553 fNShortClusters[iSegment] += cal->fNShortClusters[iSegment];
554 fNMediumClusters[iSegment] += cal->fNMediumClusters[iSegment];
555 fNLongClusters[iSegment] += cal->fNLongClusters[iSegment];
558 // just for debugging, remove me
559 fTotalTracks += cal->fTotalTracks;
560 fAcceptedTracks += cal->fAcceptedTracks;
561 fDebugCalPadRaw->Add(cal->fDebugCalPadRaw);
562 fDebugCalPadCorr->Add(cal->fDebugCalPadCorr);
566 void AliTPCcalibTracksGain::AddTrack(AliTPCseed* seed) {
568 // The clusters making up the track (seed) are added to various fit functions.
569 // See AddCluster(...) for more detail.
572 if (!fDebugStream) fDebugStream = new TTreeSRedirector(fgkDebugStreamFileName);
575 // simple histograming part
576 for (Int_t i=0; i<159; i++){
577 AliTPCclusterMI* cluster = seed->GetClusterPointer(i);
578 if (cluster) AddCluster(cluster);
582 void AliTPCcalibTracksGain::AddCluster(AliTPCclusterMI* cluster){
584 // Adding cluster information to the simple histograms
585 // No correction, fittings are applied
587 Float_t kThreshold=5;
588 if (cluster->GetX()<=0) return;
589 if (cluster->GetQ()<=kThreshold) return;
593 Int_t sector = cluster->GetDetector();
596 if (his) his->Fill(cluster->GetQ());
598 if (his) his->Fill(cluster->GetQ());
600 if (his) his->Fill(cluster->GetMax());
602 if (his) his->Fill(cluster->GetMax());
606 prof = GetProfileQT(sector);
607 if (prof) prof->Fill(cluster->GetX(),cluster->GetQ());
608 prof = GetProfileQT(-1);
609 if (prof) prof->Fill(cluster->GetX(),cluster->GetQ());
610 prof = GetProfileQM(sector);
611 if (prof) prof->Fill(cluster->GetX(),cluster->GetMax());
612 prof = GetProfileQM(-1);
613 if (prof) prof->Fill(cluster->GetX(),cluster->GetMax());
615 Float_t phi = cluster->GetY()/cluster->GetX();
617 prof2 = GetProfileQT2D(sector);
618 if (prof2) prof2->Fill(cluster->GetX(),phi,cluster->GetQ());
619 prof2 = GetProfileQT2D(-1);
620 if (prof2) prof2->Fill(cluster->GetX(),phi,cluster->GetQ());
621 prof2 = GetProfileQM2D(sector);
622 if (prof2) prof2->Fill(cluster->GetX(),phi,cluster->GetMax());
623 prof2 = GetProfileQM2D(-1);
624 if (prof2) prof2->Fill(cluster->GetX(),phi,cluster->GetMax());
631 void AliTPCcalibTracksGain::AddCluster(AliTPCclusterMI* cluster, Float_t momenta, Float_t mdedx, Int_t padType,
632 Float_t xcenter, TVectorD& dedxQ, TVectorD& dedxM, Float_t fraction, Float_t fraction2, Float_t dedge,
633 TVectorD& parY, TVectorD& parZ, TVectorD& meanPos) {
635 // Adds cluster to the appropriate fitter for later analysis.
636 // The charge used for the fit is the maximum charge for this specific cluster or the
637 // accumulated charge per cluster, depending on the value of fgkUseTotalCharge.
638 // Depending on the pad size where the cluster is registered, the value will be put in
639 // the appropriate fitter. Furthermore, for each pad size three different types of fitters
640 // are used. The fit functions are the same for all fitters (parabolic functions), but the value
641 // added to each fitter is different. The simple fitter gets the charge plugged in as is, the sqrt fitter
642 // gets the square root of the charge, and the log fitter gets fgkM*(1+q/fgkM), where q is the original charge
647 Error("AddCluster", "Cluster not valid.");
651 if (dedge < 3.) return;
652 if (fraction2 > 0.7) return;
654 //Int_t padType = GetPadType(cluster->GetX());
656 //Double_t centerPad[2] = {0};
657 //AliTPCFitPad::GetPadRegionCenterLocal(padType, centerPad);
658 //xx[0] = cluster->GetX() - centerPad[0];
659 //xx[1] = cluster->GetY() - centerPad[1];
660 xx[0] = cluster->GetX() - xcenter;
661 xx[1] = cluster->GetY();
662 xx[2] = xx[0] * xx[0];
663 xx[3] = xx[1] * xx[1];
664 xx[4] = xx[0] * xx[1];
665 xx[5] = TMath::Abs(cluster->GetZ()) - TMath::Abs(meanPos[4]);
666 xx[6] = xx[5] * xx[5];
668 // Update profile histograms
674 Int_t segment = cluster->GetDetector() % 36;
675 Double_t q = fgkUseTotalCharge ? ((Double_t)(cluster->GetQ())) : ((Double_t)(cluster->GetMax())); // note: no normalization to pad size!
677 // just for debugging
680 GetRowPad(cluster->GetX(), cluster->GetY(), row, pad);
681 fDebugCalPadRaw->GetCalROC(cluster->GetDetector())->SetValue(row, pad, q + fDebugCalPadRaw->GetCalROC(cluster->GetDetector())->GetValue(row, pad));
683 // correct charge by normalising to mean charge per track
686 // just for debugging
687 fDebugCalPadCorr->GetCalROC(cluster->GetDetector())->SetValue(row, pad, q + fDebugCalPadCorr->GetCalROC(cluster->GetDetector())->GetValue(row, pad));
689 Double_t sqrtQ = TMath::Sqrt(q);
690 Double_t logQ = fgkM * TMath::Log(1 + q / fgkM);
691 fSimpleFitter->GetFitter(segment, padType)->AddPoint(xx, q);
692 fSqrtFitter->GetFitter(segment, padType)->AddPoint(xx, sqrtQ);
693 fLogFitter->GetFitter(segment, padType)->AddPoint(xx, logQ);
694 fSingleSectorFitter->GetFitter(0, padType)->AddPoint(xx, q);
696 // this will be gone for the a new ROOT version > v5-17-05
697 if (padType == kShortPads)
698 fNShortClusters[segment]++;
699 if (padType == kMediumPads)
700 fNMediumClusters[segment]++;
701 if (padType == kLongPads)
702 fNLongClusters[segment]++;
705 void AliTPCcalibTracksGain::Evaluate(Bool_t robust, Double_t frac) {
707 // Evaluates all fitters contained in this object.
708 // If the robust option is set to kTRUE a robust fit is performed with frac as
709 // the minimal fraction of good points (see TLinearFitter::EvalRobust for details).
710 // Beware: Robust fitting is much slower!
713 fSimpleFitter->Evaluate(robust, frac);
714 fSqrtFitter->Evaluate(robust, frac);
715 fLogFitter->Evaluate(robust, frac);
716 fSingleSectorFitter->Evaluate(robust, frac);
725 AliTPCCalPad* AliTPCcalibTracksGain::CreateFitCalPad(UInt_t fitType, Bool_t undoTransformation, Bool_t normalizeToPadSize) {
727 // Creates the calibration object AliTPCcalPad using fitted parameterization
730 for (UInt_t iSector = 0; iSector < 72; iSector++)
731 tpc.Add(CreateFitCalROC(iSector, fitType, undoTransformation, normalizeToPadSize));
732 return new AliTPCCalPad(&tpc);
735 AliTPCCalROC* AliTPCcalibTracksGain::CreateFitCalROC(UInt_t sector, UInt_t fitType, Bool_t undoTransformation, Bool_t normalizeToPadSize) {
737 // Create the AliTPCCalROC with the values per pad
738 // sector - sector of interest
744 GetParameters(sector % 36, 0, fitType, par);
745 return CreateFitCalROC(sector, 0, par, fitType, undoTransformation, normalizeToPadSize);
748 GetParameters(sector % 36, 1, fitType, par);
749 AliTPCCalROC* roc1 = CreateFitCalROC(sector, 1, par, fitType, undoTransformation, normalizeToPadSize);
750 GetParameters(sector % 36, 2, fitType, par);
751 AliTPCCalROC* roc2 = CreateFitCalROC(sector, 2, par, fitType, undoTransformation, normalizeToPadSize);
752 AliTPCCalROC* roc3 = CreateCombinedCalROC(roc1, roc2);
759 AliTPCCalROC* AliTPCcalibTracksGain::CreateFitCalROC(UInt_t sector, UInt_t padType, TVectorD &fitParam, UInt_t fitType, Bool_t undoTransformation, Bool_t normalizeToPadSize) {
761 // This function is essentially a copy of AliTPCCalROC::CreateGlobalFitCalROC(...), with the
762 // modifications, that the center of the region of same pad size is used as the origin
763 // of the fit function instead of the center of the ROC.
764 // The possibility of a linear fit is removed as well because it is not needed.
765 // Only values for pads with the given pad size are calculated, the rest is 0.
766 // Set undoTransformation for undoing the transformation that was applied to the
767 // charge values before they were put into the fitter (thus allowing comparison to the original
768 // charge values). For fitType use 0 for the simple fitter, 1 for the sqrt fitter, 2 for the log fitter.
769 // If normalizeToPadSize is true, the values are normalized to the pad size.
770 // Please be aware, that you even need to specify the fitType if you want to normalize to the pad size without
771 // undoing the transformation (because normalizing involves undoing the trafo first, then normalizing, then
772 // applying the trafo again).
773 // Please note: The normalization to the pad size is a simple linear scaling with the pad length, which
774 // actually doesn't describe reality!
778 Double_t centerPad[2] = {0};
779 Float_t localXY[3] = {0};
780 AliTPCROC* tpcROC = AliTPCROC::Instance();
781 if ((padType == 0 && sector >= tpcROC->GetNInnerSector()) || (padType > 0 && sector < tpcROC->GetNInnerSector()) || sector >= tpcROC->GetNSector())
783 AliTPCCalROC* lROCfitted = new AliTPCCalROC(sector);
784 //tpcROC->GetPositionLocal(sector, lROCfitted->GetNrows()/2, lROCfitted->GetNPads(lROCfitted->GetNrows()/2)/2, centerPad); // use this instead of the switch statement if you want to calculate the center of the ROC and not the center of the regions with the same pad size
790 endRow = lROCfitted->GetNrows();
798 endRow = lROCfitted->GetNrows();
802 AliTPCFitPad::GetPadRegionCenterLocal(padType, centerPad);
804 for (UInt_t irow = startRow; irow < endRow; irow++) {
805 for (UInt_t ipad = 0; ipad < lROCfitted->GetNPads(irow); ipad++) {
806 tpcROC->GetPositionLocal(sector, irow, ipad, localXY); // calculate position localXY by pad and row number
807 dlx = localXY[0] - centerPad[0];
808 dly = localXY[1] - centerPad[1];
809 value = fitParam[0] + fitParam[1]*dlx + fitParam[2]*dly + fitParam[3]*dlx*dlx + fitParam[4]*dly*dly + fitParam[5]*dlx*dly;
811 // Let q' = value be the transformed value without any pad size corrections,
812 // let T be the transformation and let l be the pad size
813 // 1) don't undo transformation, don't normalize: return q'
814 // 2) undo transformation, don't normalize: return T^{-1} q'
815 // 3) undo transformation, normalize: return (T^{-1} q') / l
816 // 4) don't undo transformation, normalize: return T((T^{-1} q') / l)
817 if (!undoTransformation && !normalizeToPadSize) {/* value remains unchanged */} // (1)
818 else { // (2), (3), (4)
821 case 0: /* value remains unchanged */ break;
822 case 1: value = value * value; break;
823 case 2: value = (TMath::Exp(value / fgkM) - 1) * fgkM; break;
824 default: Error("CreateFitCalROC", "Wrong fit type."); break;
826 if (normalizeToPadSize) value /= GetPadLength(localXY[0]); // (3)
828 if (!undoTransformation && normalizeToPadSize) { // (4)
831 case 0: /* value remains unchanged */ break;
832 case 1: value = TMath::Sqrt(value); break;
833 case 2: value = fgkM * TMath::Log(1 + value / fgkM); break;
834 default: Error("CreateFitCalROC", "Wrong fit type."); break;
837 lROCfitted->SetValue(irow, ipad, value);
843 AliTPCCalROC* AliTPCcalibTracksGain::CreateCombinedCalROC(const AliTPCCalROC* roc1, const AliTPCCalROC* roc2) {
845 // Combines the medium pad size values of roc1 with the long pad size values of roc2 into a new
846 // AliTPCCalROC. Returns a null pointer if any one of the ROCs is an IROC; issues a warning message
847 // if the sectors of roc1 and roc2 don't match, but still continue and use the sector of roc1 as the
848 // sector of the new ROC.
851 if (!roc1 || !roc2) return 0;
852 if ((Int_t)(roc1->GetSector()) < fgTPCparam->GetNInnerSector()) return 0;
853 if ((Int_t)(roc2->GetSector()) < fgTPCparam->GetNInnerSector()) return 0;
854 if (roc1->GetSector() != roc2->GetSector()) Warning("CreateCombinedCalROC", "Sector number mismatch.");
855 AliTPCCalROC* roc = new AliTPCCalROC(roc1->GetSector());
857 for (UInt_t iRow = 0; iRow < 64; iRow++) {
858 for (UInt_t iPad = 0; iPad < roc->GetNPads(iRow); iPad++)
859 roc->SetValue(iRow, iPad, roc1->GetValue(iRow, iPad));
861 for (UInt_t iRow = 64; iRow < roc->GetNrows(); iRow++) {
862 for (UInt_t iPad = 0; iPad < roc->GetNPads(iRow); iPad++)
863 roc->SetValue(iRow, iPad, roc2->GetValue(iRow, iPad));
868 void AliTPCcalibTracksGain::GetParameters(UInt_t segment, UInt_t padType, UInt_t fitType, TVectorD &fitParam) {
870 // Puts the fit parameters for the specified segment (IROC & OROC), padType and fitType
871 // into the fitParam TVectorD (which should contain 8 elements).
872 // padType is one of kShortPads, kMediumPads, kLongPads. fitType is one of kSimpleFitter, kSqrtFitter, kLogFitter.
873 // Note: The fitter has to be evaluated first!
876 GetFitter(segment, padType, fitType)->GetParameters(fitParam);
879 void AliTPCcalibTracksGain::GetErrors(UInt_t segment, UInt_t padType, UInt_t fitType, TVectorD &fitError) {
881 // Puts the fit parameter errors for the specified segment (IROC & OROC), padType and fitType
882 // into the fitError TVectorD (which should contain 8 elements).
883 // padType is one of kShortPads, kMediumPads, kLongPads. fitType is one of kSimpleFitter, kSqrtFitter, kLogFitter.
884 // Note: The fitter has to be evaluated first!
887 GetFitter(segment, padType, fitType)->GetErrors(fitError);
888 fitError *= TMath::Sqrt(GetRedChi2(segment, padType, fitType));
891 Double_t AliTPCcalibTracksGain::GetRedChi2(UInt_t segment, UInt_t padType, UInt_t fitType) {
893 // Returns the reduced chi^2 value for the specified segment, padType and fitType.
894 // padType is one of kShortPads, kMediumPads, kLongPads. fitType is one of kSimpleFitter, kSqrtFitter, kLogFitter.
895 // Note: The fitter has to be evaluated first!
898 // this will be gone for the a new ROOT version > v5-17-05
899 Int_t lNClusters = 0;
902 lNClusters = fNShortClusters[segment];
905 lNClusters = fNMediumClusters[segment];
908 lNClusters = fNLongClusters[segment];
911 return GetFitter(segment, padType, fitType)->GetChisquare()/(lNClusters - 8);
914 void AliTPCcalibTracksGain::GetCovarianceMatrix(UInt_t segment, UInt_t padType, UInt_t fitType, TMatrixD& covMatrix) {
916 // Returns the covariance matrix for the specified segment, padType, fitType.
917 // padType is one of kShortPads, kMediumPads, kLongPads. fitType is one of kSimpleFitter, kSqrtFitter, kLogFitter.
920 GetFitter(segment, padType, fitType)->GetCovarianceMatrix(covMatrix);
923 TLinearFitter* AliTPCcalibTracksGain::GetFitter(UInt_t segment, UInt_t padType, UInt_t fitType) {
925 // Returns the TLinearFitter object for the specified segment, padType, fitType.
926 // padType is one of kShortPads, kMediumPads, kLongPads. fitType is one of kSimpleFitter, kSqrtFitter, kLogFitter.
931 return fSimpleFitter->GetFitter(segment, padType);
933 return fSqrtFitter->GetFitter(segment, padType);
935 return fLogFitter->GetFitter(segment, padType);
937 return fSingleSectorFitter->GetFitter(0, padType);
942 Double_t AliTPCcalibTracksGain::GetPadLength(Double_t lx) {
944 // The function returns 0.75 for an IROC, 1. for an OROC at medium pad size position,
945 // 1.5 for an OROC at long pad size position, -1 if out of bounds.
948 Double_t irocLow = fgTPCparam->GetPadRowRadiiLow(0) - fgTPCparam->GetInnerPadPitchLength()/2;
949 Double_t irocUp = fgTPCparam->GetPadRowRadiiLow(fgTPCparam->GetNRowLow()-1) + fgTPCparam->GetInnerPadPitchLength()/2;
950 Double_t orocLow1 = fgTPCparam->GetPadRowRadiiUp(0) - fgTPCparam->GetOuter1PadPitchLength()/2;
951 Double_t orocUp1 = fgTPCparam->GetPadRowRadiiUp(fgTPCparam->GetNRowUp1()-1) + fgTPCparam->GetOuter1PadPitchLength()/2;
952 Double_t orocLow2 = fgTPCparam->GetPadRowRadiiUp(fgTPCparam->GetNRowUp1()) - fgTPCparam->GetOuter2PadPitchLength()/2;
953 Double_t orocUp2 = fgTPCparam->GetPadRowRadiiUp(fgTPCparam->GetNRowUp()-1) + fgTPCparam->GetOuter2PadPitchLength()/2;
956 if (lx >= irocLow && lx <= irocUp) return 0.75;
957 // if OROC medium pads
958 if (lx >= orocLow1 && lx <= orocUp1) return 1.;
960 if (lx >= orocLow2 && lx <= orocUp2) return 1.5;
965 Int_t AliTPCcalibTracksGain::GetPadType(Double_t lx) {
967 // The function returns 0 for an IROC, 1 for an OROC at medium pad size position,
968 // 2 for an OROC at long pad size position, -1 if out of bounds.
971 if (GetPadLength(lx) == 0.75) return 0;
972 else if (GetPadLength(lx) == 1.) return 1;
973 else if (GetPadLength(lx) == 1.5) return 2;
977 // ONLY FOR DEBUGGING PURPOSES - REMOVE ME WHEN NOT NEEDED ANYMORE
978 Bool_t AliTPCcalibTracksGain::GetRowPad(Double_t lx, Double_t ly, Int_t& row, Int_t& pad) {
980 // Calculate the row and pad number when the local coordinates are given.
981 // Returns kFALSE if the position is out of range, otherwise return kTRUE.
982 // WARNING: This function is preliminary and probably isn't very accurate!!
985 Double_t irocLow = fgTPCparam->GetPadRowRadiiLow(0) - fgTPCparam->GetInnerPadPitchLength()/2;
986 //Double_t irocUp = fgTPCparam->GetPadRowRadiiLow(fgTPCparam->GetNRowLow()-1) + fgTPCparam->GetInnerPadPitchLength()/2;
987 Double_t orocLow1 = fgTPCparam->GetPadRowRadiiUp(0) - fgTPCparam->GetOuter1PadPitchLength()/2;
988 //Double_t orocUp1 = fgTPCparam->GetPadRowRadiiUp(fgTPCparam->GetNRowUp1()-1) + fgTPCparam->GetOuter1PadPitchLength()/2;
989 Double_t orocLow2 = fgTPCparam->GetPadRowRadiiUp(fgTPCparam->GetNRowUp1()) - fgTPCparam->GetOuter2PadPitchLength()/2;
990 //Double_t orocUp2 = fgTPCparam->GetPadRowRadiiUp(fgTPCparam->GetNRowUp()-1) + fgTPCparam->GetOuter2PadPitchLength()/2;
992 if (GetPadType(lx) == 0) {
993 row = (Int_t)((lx - irocLow) / fgTPCparam->GetInnerPadPitchLength());
994 pad = (Int_t)((ly + fgTPCparam->GetYInner(row)) / fgTPCparam->GetInnerPadPitchWidth());
995 } else if (GetPadType(lx) == 1) {
996 row = (Int_t)((lx - orocLow1) / fgTPCparam->GetOuter1PadPitchLength());
997 pad = (Int_t)((ly + fgTPCparam->GetYOuter(row)) / fgTPCparam->GetOuterPadPitchWidth());
998 } else if (GetPadType(lx) == 2) {
999 row = fgTPCparam->GetNRowUp1() + (Int_t)((lx - orocLow2) / fgTPCparam->GetOuter2PadPitchLength());
1000 pad = (Int_t)((ly + fgTPCparam->GetYOuter(row)) / fgTPCparam->GetOuterPadPitchWidth());
1006 void AliTPCcalibTracksGain::DumpTrack(AliTPCseed* track) {
1008 // Dump track information to the debug stream
1018 TVectorD meanPos[3];
1021 for (Int_t ipad = 0; ipad < 3; ipad++) {
1022 dedxM[ipad].ResizeTo(5);
1023 dedxQ[ipad].ResizeTo(5);
1024 parY[ipad].ResizeTo(3);
1025 parZ[ipad].ResizeTo(3);
1026 meanPos[ipad].ResizeTo(6);
1027 Bool_t isOK = GetDedx(track, ipad, rows, sector[ipad], npoints[ipad], dedxM[ipad], dedxQ[ipad], parY[ipad], parZ[ipad], meanPos[ipad]);
1029 AddTracklet(sector[ipad],ipad, dedxQ[ipad], dedxM[ipad], parY[ipad], parZ[ipad], meanPos[ipad] );
1033 (*fDebugStream) << "Track" <<
1034 "Track.=" << track << // track information
1040 (*fDebugStream) << "TrackG" <<
1041 "Track.=" << track << // track information
1043 // info for pad type 0
1044 "sector0="<<sector[0]<<
1045 "npoints0="<<npoints[0]<<
1046 "dedxM0.="<<&dedxM[0]<<
1047 "dedxQ0.="<<&dedxQ[0]<<
1048 "parY0.="<<&parY[0]<<
1049 "parZ0.="<<&parZ[0]<<
1050 "meanPos0.="<<&meanPos[0]<<
1052 // info for pad type 1
1053 "sector1="<<sector[1]<<
1054 "npoints1="<<npoints[1]<<
1055 "dedxM1.="<<&dedxM[1]<<
1056 "dedxQ1.="<<&dedxQ[1]<<
1057 "parY1.="<<&parY[1]<<
1058 "parZ1.="<<&parZ[1]<<
1059 "meanPos1.="<<&meanPos[1]<<
1061 // info for pad type 2
1062 "sector2="<<sector[2]<<
1063 "npoints2="<<npoints[2]<<
1064 "dedxM2.="<<&dedxM[2]<<
1065 "dedxQ2.="<<&dedxQ[2]<<
1066 "parY2.="<<&parY[2]<<
1067 "parZ2.="<<&parZ[2]<<
1068 "meanPos2.="<<&meanPos[2]<<
1075 Bool_t AliTPCcalibTracksGain::GetDedx(AliTPCseed* track, Int_t padType, Int_t* rows,
1076 Int_t §or, Int_t& npoints,
1077 TVectorD &dedxM, TVectorD &dedxQ,
1078 TVectorD &parY, TVectorD &parZ, TVectorD&meanPos)
1081 // GetDedx for given sector for given track
1082 // padType - type of pads
1085 static TLinearFitter fitY(2, "pol1");
1086 static TLinearFitter fitZ(2, "pol1");
1089 Int_t firstRow = 0, lastRow = 0;
1091 Float_t xcenter = 0;
1092 const Float_t ktany = TMath::Tan(TMath::DegToRad() * 10);
1093 const Float_t kedgey = 4.;
1096 lastRow = fgTPCparam->GetNRowLow();
1100 firstRow = fgTPCparam->GetNRowLow();
1101 lastRow = fgTPCparam->GetNRowLow() + fgTPCparam->GetNRowUp1();
1105 firstRow = fgTPCparam->GetNRowLow() + fgTPCparam->GetNRowUp1();
1106 lastRow = fgTPCparam->GetNRowLow() + fgTPCparam->GetNRowUp();
1109 minRow = (lastRow - firstRow) / 2;
1112 Int_t nclusters = 0;
1113 Int_t nclustersNE = 0; // number of not edge clusters
1114 Int_t lastSector = -1;
1115 Float_t amplitudeQ[100];
1116 Float_t amplitudeM[100];
1124 for (Int_t iCluster = firstRow; iCluster < lastRow; iCluster++) {
1125 AliTPCclusterMI* cluster = track->GetClusterPointer(iCluster);
1127 Int_t detector = cluster->GetDetector() ;
1128 if (lastSector == -1) lastSector = detector;
1129 if (lastSector != detector) continue;
1130 amplitudeQ[nclusters] = cluster->GetQ();
1131 amplitudeM[nclusters] = cluster->GetMax();
1132 rowIn[nclusters] = iCluster;
1134 Double_t dx = cluster->GetX() - xcenter;
1135 Double_t y = cluster->GetY();
1136 Double_t z = cluster->GetZ();
1137 fitY.AddPoint(&dx, y);
1138 fitZ.AddPoint(&dx, z);
1145 if (TMath::Abs(cluster->GetY()) < cluster->GetX()*ktany - kedgey) nclustersNE++;
1149 if (nclusters < minRow / 2) return kFALSE;
1150 if (nclustersNE < minRow / 2) return kFALSE;
1151 for (Int_t i = 0; i < 6; i++) meanPos[i] /= Double_t(nclusters);
1154 fitY.GetParameters(parY);
1155 fitZ.GetParameters(parZ);
1157 // calculate truncated mean
1159 TMath::Sort(nclusters, amplitudeQ, index, kFALSE);
1164 for (Int_t i = 0; i < 5; i++) {
1173 for (Int_t i = 0; i < nclusters; i++) {
1174 Int_t rowSorted = rowIn[index[i]];
1175 AliTPCclusterMI* cluster = track->GetClusterPointer(rowSorted);
1177 if (TMath::Abs(cluster->GetY()) > cluster->GetX()*ktany - kedgey) continue; //don't take edge clusters
1179 if (inonEdge < nclustersNE * 0.5) {
1181 dedxQ[0] += amplitudeQ[index[i]];
1182 dedxM[0] += amplitudeM[index[i]];
1184 if (inonEdge < nclustersNE * 0.6) {
1186 dedxQ[1] += amplitudeQ[index[i]];
1187 dedxM[1] += amplitudeM[index[i]];
1189 if (inonEdge < nclustersNE * 0.7) {
1191 dedxQ[2] += amplitudeQ[index[i]];
1192 dedxM[2] += amplitudeM[index[i]];
1194 if (inonEdge < nclustersNE * 0.8) {
1196 dedxQ[3] += amplitudeQ[index[i]];
1197 dedxM[3] += amplitudeM[index[i]];
1199 if (inonEdge < nclustersNE * 0.9) {
1201 dedxQ[4] += amplitudeQ[index[i]];
1202 dedxM[4] += amplitudeM[index[i]];
1205 for (Int_t i = 0; i < 5; i++) {
1206 dedxQ[i] /= ndedx[i];
1207 dedxM[i] /= ndedx[i];
1211 Float_t momenta = track->GetP();
1212 Float_t mdedx = track->GetdEdx();
1213 for (Int_t i = 0; i < nclusters; i++) {
1214 Int_t rowSorted = rowIn[index[i]];
1215 AliTPCclusterMI* cluster = track->GetClusterPointer(rowSorted);
1217 printf("Problem\n");
1220 if (TMath::Abs(cluster->GetY()) < cluster->GetX()*ktany - kedgey) inonEdge++;
1221 Float_t dedge = cluster->GetX()*ktany - TMath::Abs(cluster->GetY());
1222 Float_t fraction = Float_t(i) / Float_t(nclusters);
1223 Float_t fraction2 = Float_t(inonEdge) / Float_t(nclustersNE);
1225 AddCluster(cluster, momenta, mdedx, padType, xcenter, dedxQ, dedxM, fraction, fraction2, dedge, parY, parZ, meanPos);
1227 (*fDebugStream) << "dEdx" <<
1228 "Cl.=" << cluster << // cluster of interest
1229 "P=" << momenta << // track momenta
1230 "dedx=" << mdedx << // mean dedx - corrected for angle
1231 "IPad=" << padType << // pad type 0..2
1232 "xc=" << xcenter << // x center of chamber
1233 "dedxQ.=" << &dedxQ << // dedxQ - total charge
1234 "dedxM.=" << &dedxM << // dedxM - maximal charge
1235 "fraction=" << fraction << // fraction - order in statistic (0,1)
1236 "fraction2=" << fraction2 << // fraction - order in statistic (0,1)
1237 "dedge=" << dedge << // distance to the edge
1238 "parY.=" << &parY << // line fit
1239 "parZ.=" << &parZ << // line fit
1240 "meanPos.=" << &meanPos << // mean position (dx, dx^2, y,y^2, z, z^2)
1244 (*fDebugStream) << "dEdxT" <<
1245 "P=" << momenta << // track momenta
1246 "npoints="<<inonEdge<< // number of points
1247 "sector="<<lastSector<< // sector number
1248 "dedx=" << mdedx << // mean dedx - corrected for angle
1249 "IPad=" << padType << // pad type 0..2
1250 "xc=" << xcenter << // x center of chamber
1251 "dedxQ.=" << &dedxQ << // dedxQ - total charge
1252 "dedxM.=" << &dedxM << // dedxM - maximal charge
1253 "parY.=" << &parY << // line fit
1254 "parZ.=" << &parZ << // line fit
1255 "meanPos.=" << &meanPos << // mean position (dx, dx^2, y,y^2, z, z^2)
1258 sector = lastSector;
1263 void AliTPCcalibTracksGain::AddTracklet(UInt_t sector, UInt_t padType,TVectorD &dedxQ, TVectorD &dedxM,TVectorD& parY, TVectorD& parZ, TVectorD& meanPos){
1265 // Add measured point - dedx to the fitter
1268 //chain->SetAlias("dr","(250-abs(meanPos.fElements[4]))");
1269 //chain->SetAlias("tz","(0+abs(parZ.fElements[1]))");
1270 //chain->SetAlias("ty","(0+abs(parY.fElements[1]))");
1271 //chain->SetAlias("corrg","sqrt((1+ty^2)*(1+tz^2))");
1272 // TString *strq0 = toolkit.FitPlane(chain,"dedxQ.fElements[2]","dr++tz++ty++dr*tz++dr*ty++ty*tz++(sector==0)++(sector==1)++(sector==2)++(sector==3)++(sector==4)++(sector==5)++(sector==6)++(sector==7)++(sector==8)++(sector==9)++(sector==10)++(sector==11)","IPad==0",chi2,npoints,param,covar,0,100000);
1276 // z and angular part
1278 xxx[0] = 250.-TMath::Abs(meanPos[4]);
1279 xxx[1] = TMath::Abs(parY[1]);
1280 xxx[2] = TMath::Abs(parZ[1]);
1281 xxx[3] = xxx[0]*xxx[1];
1282 xxx[4] = xxx[0]*xxx[2];
1283 xxx[5] = xxx[1]*xxx[2];
1284 xxx[6] = xxx[0]*xxx[0];
1288 Int_t tsector = sector%36;
1289 for (Int_t i=0;i<35;i++){
1290 xxx[7+i]=(i==tsector)?1:0;
1292 TLinearFitter *fitterM = fFitter0M;
1293 if (padType==1) fitterM=fFitter1M;
1294 if (padType==2) fitterM=fFitter2M;
1295 fitterM->AddPoint(xxx,dedxM[1]);
1297 TLinearFitter *fitterT = fFitter0T;
1298 if (padType==1) fitterT = fFitter1T;
1299 if (padType==2) fitterT = fFitter2T;
1300 fitterT->AddPoint(xxx,dedxQ[1]);