1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 ///////////////////////////////////////////////////////////////////////////////
19 // Class to make a internal alignemnt of TPC chambers //
21 // Requierements - Warnings:
22 // 1. Before using this componenent the magnetic filed has to be set properly //
23 // 2. The systematic effects - unlinearities has to be understood
25 // If systematic and unlinearities are not under control
26 // the alignment is just effective alignment. Not second order corrction
29 // The histograming of the edge effects and unlineratities integral part
30 // of the component (currently only in debug stream)
32 // 3 general type of linear transformation investigated (see bellow)
34 // By default only 6 parameter alignment to be used - other just for QA purposes
36 // Different linear tranformation investigated
37 // 12 parameters - arbitrary linear transformation
38 // a00 a01 a02 a03 p[0] p[1] p[2] p[9]
39 // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10]
40 // a20 a21 a22 a23 p[6] p[7] p[8] p[11]
42 // 9 parameters - scaling fixed to 1
43 // a00 a01 a02 a03 1 p[0] p[1] p[6]
44 // a10 a11 a12 a13 ==> p[2] 1 p[3] p[7]
45 // a20 a21 a22 a23 p[4] p[5] 1 p[8]
47 // 6 parameters - x-y rotation x-z, y-z tiliting
48 // a00 a01 a02 a03 1 -p[0] 0 p[3]
49 // a10 a11 a12 a13 ==> p[0] 1 0 p[4]
50 // a20 a21 a22 a23 p[1] p[2] 1 p[5]
53 // Debug stream supported
54 // 0. Align - The main output of the Alignment component
55 // - Used for visualization of the misalignment between sectors
56 // - Results of the missalignment fit and the mean and sigmas of histograms
58 // 1. Tracklet - StreamLevel >1
59 // - Dump all information about tracklet match from sector1 to sector 2
60 // - Default histogram residulas created in parallel
61 // - Check this streamer in case of suspicious content of these histograms
62 // 2. Track - StreamLevel>5
63 // - For debugging of the edge effects
64 // - All information - extrapolation inside of one sectors
65 // - Created in order to distinguish between unlinearities inside of o
66 // sector and missalignment
71 gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros");
72 gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+")
73 AliXRDPROOFtoolkit tool;
74 TChain * chain = tool.MakeChain("align.txt","Track",0,10200);
76 TCut cutA("abs(tp1.fP[1]-tp2.fP[1])<0.3&&abs(tp1.fP[0]-tp2.fP[0])<0.15&&abs(tp1.fP[3]-tp2.fP[3])<0.01&&abs(tp1.fP[2]-tp2.fP[2])<0.01");
77 TCut cutS("s1%36==s2%36");
80 .x $ALICE_ROOT/macros/loadlibsREC.C
82 gSystem->Load("$ROOTSYS/lib/libXrdClient.so");
83 gSystem->Load("libProof");
84 gSystem->Load("libANALYSIS");
85 gSystem->Load("libSTAT");
86 gSystem->Load("libTPCcalib");
89 TFile fcalib("CalibObjects.root");
90 TObjArray * array = (TObjArray*)fcalib.Get("TPCCalib");
92 AliTPCcalibAlign * align = ( AliTPCcalibAlign *)array->FindObject("alignTPC");
96 align->MakeTree("alignTree.root");
97 TFile falignTree("alignTree.root");
98 TTree * treeAlign = (TTree*)falignTree.Get("Align");
106 #include "TLinearFitter.h"
107 #include "AliTPCcalibAlign.h"
108 #include "AliTPCROC.h"
109 #include "AliTPCPointCorrection.h"
110 #include "AliTrackPointArray.h"
112 #include "AliExternalTrackParam.h"
113 #include "AliESDEvent.h"
114 #include "AliESDfriend.h"
115 #include "AliESDtrack.h"
117 #include "AliTPCTracklet.h"
120 #include "THnSparse.h"
121 #include "TVectorD.h"
122 #include "TTreeStream.h"
126 #include "TGraphErrors.h"
127 #include "AliTPCclusterMI.h"
128 #include "AliTPCseed.h"
129 #include "AliTracker.h"
130 #include "TClonesArray.h"
131 #include "AliExternalComparison.h"
134 #include "TProfile.h"
136 #include "TDatabasePDG.h"
138 #include "TTreeStream.h"
139 #include "Riostream.h"
143 AliTPCcalibAlign* AliTPCcalibAlign::fgInstance = 0;
144 ClassImp(AliTPCcalibAlign)
149 AliTPCcalibAlign* AliTPCcalibAlign::Instance()
152 // Singleton implementation
153 // Returns an instance of this class, it is created if neccessary
155 if (fgInstance == 0){
156 fgInstance = new AliTPCcalibAlign();
164 AliTPCcalibAlign::AliTPCcalibAlign()
166 fDphiHistArray(72*72),
167 fDthetaHistArray(72*72),
171 fDyPhiHistArray(72*72), // array of residual histograms y -kYPhi
172 fDzThetaHistArray(72*72), // array of residual histograms z-z -kZTheta
173 fDphiZHistArray(72*72), // array of residual histograms phi -kPhiz
174 fDthetaZHistArray(72*72), // array of residual histograms theta -kThetaz
175 fDyZHistArray(72*72), // array of residual histograms y -kYz
176 fDzZHistArray(72*72), // array of residual histograms z -kZz
177 fFitterArray12(72*72),
178 fFitterArray9(72*72),
179 fFitterArray6(72*72),
180 fMatrixArray12(72*72),
181 fMatrixArray9(72*72),
182 fMatrixArray6(72*72),
183 fCombinedMatrixArray6(72),
188 fArraySectorIntParam(36), // array of sector alignment parameters
189 fArraySectorIntCovar(36), // array of sector alignment covariances
191 // Kalman filter for global alignment
193 fSectorParamA(0), // Kalman parameter for A side
194 fSectorCovarA(0), // Kalman covariance for A side
195 fSectorParamC(0), // Kalman parameter for A side
196 fSectorCovarC(0), // Kalman covariance for A side
197 fUseInnerOuter(kTRUE)// flag- use Inner Outer sector for left righ alignment
202 for (Int_t i=0;i<72*72;++i) {
205 AliTPCROC * roc = AliTPCROC::Instance();
206 fXquadrant = roc->GetPadRowRadii(36,53);
207 fXmiddle = ( roc->GetPadRowRadii(0,0)+roc->GetPadRowRadii(36,roc->GetNRows(36)-1))*0.5;
208 fXIO = ( roc->GetPadRowRadii(0,roc->GetNRows(0)-1)+roc->GetPadRowRadii(36,0))*0.5;
209 fClusterDelta[0]=0; // cluster residuals - Y
210 fClusterDelta[1]=0; // cluster residuals - Z
213 fTrackletDelta[0]=0; // tracklet residuals
214 fTrackletDelta[1]=0; // tracklet residuals
215 fTrackletDelta[2]=0; // tracklet residuals
216 fTrackletDelta[3]=0; // tracklet residuals
219 AliTPCcalibAlign::AliTPCcalibAlign(const Text_t *name, const Text_t *title)
221 fDphiHistArray(72*72),
222 fDthetaHistArray(72*72),
225 fDyPhiHistArray(72*72), // array of residual histograms y -kYPhi
226 fDzThetaHistArray(72*72), // array of residual histograms z-z -kZTheta
227 fDphiZHistArray(72*72), // array of residual histograms phi -kPhiz
228 fDthetaZHistArray(72*72), // array of residual histograms theta -kThetaz
229 fDyZHistArray(72*72), // array of residual histograms y -kYz
230 fDzZHistArray(72*72), // array of residual histograms z -kZz //
231 fFitterArray12(72*72),
232 fFitterArray9(72*72),
233 fFitterArray6(72*72),
234 fMatrixArray12(72*72),
235 fMatrixArray9(72*72),
236 fMatrixArray6(72*72),
237 fCombinedMatrixArray6(72),
242 fArraySectorIntParam(36), // array of sector alignment parameters
243 fArraySectorIntCovar(36), // array of sector alignment covariances
245 // Kalman filter for global alignment
247 fSectorParamA(0), // Kalman parameter for A side
248 fSectorCovarA(0), // Kalman covariance for A side
249 fSectorParamC(0), // Kalman parameter for A side
250 fSectorCovarC(0), // Kalman covariance for A side
251 fUseInnerOuter(kTRUE)// flag- use Inner Outer sector for left righ alignment
259 for (Int_t i=0;i<72*72;++i) {
262 AliTPCROC * roc = AliTPCROC::Instance();
263 fXquadrant = roc->GetPadRowRadii(36,53);
264 fXmiddle = ( roc->GetPadRowRadii(0,0)+roc->GetPadRowRadii(36,roc->GetNRows(36)-1))*0.5;
265 fXIO = ( roc->GetPadRowRadii(0,roc->GetNRows(0)-1)+roc->GetPadRowRadii(36,0))*0.5;
266 fClusterDelta[0]=0; // cluster residuals
267 fClusterDelta[1]=0; // cluster residuals
269 fTrackletDelta[0]=0; // tracklet residuals
270 fTrackletDelta[1]=0; // tracklet residuals
271 fTrackletDelta[2]=0; // tracklet residuals
272 fTrackletDelta[3]=0; // tracklet residuals
276 AliTPCcalibAlign::AliTPCcalibAlign(const AliTPCcalibAlign &align)
277 :AliTPCcalibBase(align),
278 fDphiHistArray(align.fDphiHistArray),
279 fDthetaHistArray(align.fDthetaHistArray),
280 fDyHistArray(align.fDyHistArray),
281 fDzHistArray(align.fDzHistArray),
282 fDyPhiHistArray(align.fDyPhiHistArray), // array of residual histograms y -kYPhi
283 fDzThetaHistArray(align.fDzThetaHistArray), // array of residual histograms z-z -kZTheta
284 fDphiZHistArray(align.fDphiZHistArray), // array of residual histograms phi -kPhiz
285 fDthetaZHistArray(align.fDthetaZHistArray), // array of residual histograms theta -kThetaz
286 fDyZHistArray(align.fDyZHistArray), // array of residual histograms y -kYz
287 fDzZHistArray(align.fDzZHistArray), // array of residual histograms z -kZz
289 fFitterArray12(align.fFitterArray12),
290 fFitterArray9(align.fFitterArray9),
291 fFitterArray6(align.fFitterArray6),
293 fMatrixArray12(align.fMatrixArray12),
294 fMatrixArray9(align.fMatrixArray9),
295 fMatrixArray6(align.fMatrixArray6),
296 fCombinedMatrixArray6(align.fCombinedMatrixArray6),
297 fNoField(align.fNoField),
299 fXmiddle(align.fXmiddle),
300 fXquadrant(align.fXquadrant),
301 fArraySectorIntParam(align.fArraySectorIntParam), // array of sector alignment parameters
302 fArraySectorIntCovar(align.fArraySectorIntCovar), // array of sector alignment covariances
303 fSectorParamA(0), // Kalman parameter for A side
304 fSectorCovarA(0), // Kalman covariance for A side
305 fSectorParamC(0), // Kalman parameter for A side
306 fSectorCovarC(0), // Kalman covariance for A side
307 fUseInnerOuter(kTRUE)// flag- use Inner Outer sector for left righ alignment
311 // copy constructor - copy also the content
315 const TObjArray *arr1=0;
316 for (Int_t index =0; index<72*72; index++){
317 for (Int_t iarray=0;iarray<10; iarray++){
319 arr0 = &fDyHistArray;
320 arr1 = &align.fDyHistArray;
323 arr0 = &fDzHistArray;
324 arr1 = &align.fDzHistArray;
327 arr0 = &fDphiHistArray;
328 arr1 = &align.fDphiHistArray;
331 arr0 = &fDthetaHistArray;
332 arr1 = &align.fDthetaHistArray;
335 arr0 = &fDyZHistArray;
336 arr1 = &align.fDyZHistArray;
339 arr0 = &fDzZHistArray;
340 arr1 = &align.fDzZHistArray;
343 arr0 = &fDphiZHistArray;
344 arr1 = &align.fDphiZHistArray;
346 if (iarray==kThetaZ){
347 arr0 = &fDthetaZHistArray;
348 arr1 = &align.fDthetaZHistArray;
352 arr0 = &fDyPhiHistArray;
353 arr1 = &align.fDyPhiHistArray;
355 if (iarray==kZTheta){
356 arr0 = &fDzThetaHistArray;
357 arr1 = &align.fDzThetaHistArray;
360 if (arr1->At(index)) {
361 his = (TH1*)arr1->At(index)->Clone();
362 his->SetDirectory(0);
363 arr0->AddAt(his,index);
370 if (align.fSectorParamA){
371 fSectorParamA = (TMatrixD*)align.fSectorParamA->Clone();
372 fSectorParamA = (TMatrixD*)align.fSectorCovarA->Clone();
373 fSectorParamC = (TMatrixD*)align.fSectorParamA->Clone();
374 fSectorParamC = (TMatrixD*)align.fSectorCovarA->Clone();
376 fClusterDelta[0]=0; // cluster residuals
377 fClusterDelta[1]=0; // cluster residuals
379 fTrackletDelta[0]=0; // tracklet residuals
380 fTrackletDelta[1]=0; // tracklet residuals
381 fTrackletDelta[2]=0; // tracklet residuals
382 fTrackletDelta[3]=0; // tracklet residuals
386 AliTPCcalibAlign::~AliTPCcalibAlign() {
390 fDphiHistArray.SetOwner(kTRUE); // array of residual histograms phi -kPhi
391 fDthetaHistArray.SetOwner(kTRUE); // array of residual histograms theta -kTheta
392 fDyHistArray.SetOwner(kTRUE); // array of residual histograms y -kY
393 fDzHistArray.SetOwner(kTRUE); // array of residual histograms z -kZ
395 fDyPhiHistArray.SetOwner(kTRUE); // array of residual histograms y -kYPhi
396 fDzThetaHistArray.SetOwner(kTRUE); // array of residual histograms z-z -kZTheta
398 fDphiZHistArray.SetOwner(kTRUE); // array of residual histograms phi -kPhiz
399 fDthetaZHistArray.SetOwner(kTRUE); // array of residual histograms theta -kThetaz
400 fDyZHistArray.SetOwner(kTRUE); // array of residual histograms y -kYz
401 fDzZHistArray.SetOwner(kTRUE); // array of residual histograms z -kZz
403 fDphiHistArray.Delete(); // array of residual histograms phi -kPhi
404 fDthetaHistArray.Delete(); // array of residual histograms theta -kTheta
405 fDyHistArray.Delete(); // array of residual histograms y -kY
406 fDzHistArray.Delete(); // array of residual histograms z -kZ
408 fDyPhiHistArray.Delete(); // array of residual histograms y -kYPhi
409 fDzThetaHistArray.Delete(); // array of residual histograms z-z -kZTheta
411 fDphiZHistArray.Delete(); // array of residual histograms phi -kPhiz
412 fDthetaZHistArray.Delete(); // array of residual histograms theta -kThetaz
413 fDyZHistArray.Delete(); // array of residual histograms y -kYz
414 fDzZHistArray.Delete(); // array of residual histograms z -kZz
416 fFitterArray12.SetOwner(kTRUE); // array of fitters
417 fFitterArray9.SetOwner(kTRUE); // array of fitters
418 fFitterArray6.SetOwner(kTRUE); // array of fitters
420 fMatrixArray12.SetOwner(kTRUE); // array of transnformtation matrix
421 fMatrixArray9.SetOwner(kTRUE); // array of transnformtation matrix
422 fMatrixArray6.SetOwner(kTRUE); // array of transnformtation matrix
424 fFitterArray12.Delete(); // array of fitters
425 fFitterArray9.Delete(); // array of fitters
426 fFitterArray6.Delete(); // array of fitters
428 fMatrixArray12.Delete(); // array of transnformtation matrix
429 fMatrixArray9.Delete(); // array of transnformtation matrix
430 fMatrixArray6.Delete(); // array of transnformtation matrix
433 fArraySectorIntParam.SetOwner(kTRUE); // array of sector alignment parameters
434 fArraySectorIntCovar.SetOwner(kTRUE); // array of sector alignment covariances
435 fArraySectorIntParam.Delete(); // array of sector alignment parameters
436 fArraySectorIntCovar.Delete(); // array of sector alignment covariances
437 for (Int_t i=0; i<2; i++){
438 delete fClusterDelta[i]; // cluster residuals
441 for (Int_t i=0; i<4; i++){
442 delete fTrackletDelta[i]; // tracklet residuals
448 void AliTPCcalibAlign::Process(AliESDEvent *event) {
450 // Process pairs of cosmic tracks
452 if (!fClusterDelta[0]) MakeResidualHistos();
453 if (!fTrackletDelta[0]) MakeResidualHistosTracklet();
456 ExportTrackPoints(event); // export track points for external calibration
457 const Int_t kMaxTracks =6;
458 const Int_t kminCl = 40;
459 AliESDfriend *eESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
460 if (!eESDfriend) return;
461 Int_t ntracks=event->GetNumberOfTracks();
468 for (Int_t i0=0;i0<ntracks;++i0) {
469 AliESDtrack *track0 = event->GetTrack(i0);
470 AliESDfriendTrack *friendTrack = 0;
471 TObject *calibObject=0;
472 AliTPCseed *seed0 = 0;
474 friendTrack = (AliESDfriendTrack *)eESDfriend->GetTrack(i0);;
475 if (!friendTrack) continue;
476 for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
477 if ((seed0=dynamic_cast<AliTPCseed*>(calibObject))) break;
479 if (!seed0) continue;
480 fCurrentTrack=track0;
481 fCurrentFriendTrack=friendTrack;
487 // process cosmic pairs
489 if (ntracks>kMaxTracks) return;
491 //select pairs - for alignment
492 for (Int_t i0=0;i0<ntracks;++i0) {
493 AliESDtrack *track0 = event->GetTrack(i0);
494 // if (track0->GetTPCNcls()<kminCl) continue;
495 track0->GetImpactParameters(dca0[0],dca0[1]);
496 // if (TMath::Abs(dca0[0])>30) continue;
498 for (Int_t i1=0;i1<ntracks;++i1) {
499 if (i0==i1) continue;
500 AliESDtrack *track1 = event->GetTrack(i1);
501 // if (track1->GetTPCNcls()<kminCl) continue;
502 track1->GetImpactParameters(dca1[0],dca1[1]);
503 // fast cuts on dca and theta
504 // if (TMath::Abs(dca1[0]+dca0[0])>15) continue;
505 // if (TMath::Abs(dca1[1]-dca0[1])>15) continue;
506 if (TMath::Abs(track0->GetParameter()[3]+track1->GetParameter()[3])>0.1) continue;
508 AliESDfriendTrack *friendTrack = 0;
509 TObject *calibObject=0;
510 AliTPCseed *seed0 = 0,*seed1=0;
512 friendTrack = (AliESDfriendTrack *)eESDfriend->GetTrack(i0);;
513 if (!friendTrack) continue;
514 for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
515 if ((seed0=dynamic_cast<AliTPCseed*>(calibObject))) break;
517 friendTrack = (AliESDfriendTrack *)eESDfriend->GetTrack(i1);;
518 if (!friendTrack) continue;
519 for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
520 if ((seed1=dynamic_cast<AliTPCseed*>(calibObject))) break;
522 if (!seed0) continue;
525 if (!seed1) continue;
526 Int_t nclsectors0[72], nclsectors1[72];
527 for (Int_t isec=0;isec<72;isec++){
531 for (Int_t i=0;i<160;i++){
532 AliTPCclusterMI *c0=seed0->GetClusterPointer(i);
533 AliTPCclusterMI *c1=seed1->GetClusterPointer(i);
534 if (c0) nclsectors0[c0->GetDetector()]+=1;
535 if (c1) nclsectors1[c1->GetDetector()]+=1;
538 for (Int_t isec0=0; isec0<72;isec0++){
539 if (nclsectors0[isec0]<kminCl) continue;
540 for (Int_t isec1=0; isec1<72;isec1++){
541 if (nclsectors1[isec1]<kminCl) continue;
544 Double_t parLine0[10];
545 Double_t parLine1[10];
546 TMatrixD par0(4,1),cov0(4,4),par1(4,1),cov1(4,4);
547 Bool_t useInnerOuter = kFALSE;
548 if (s1%36!=s0%36) useInnerOuter = fUseInnerOuter; // for left - right alignment both sectors refit can be used if specified
549 Int_t nl0 = RefitLinear(seed0,s0, parLine0, s0,par0,cov0,fXIO,useInnerOuter);
550 Int_t nl1 = RefitLinear(seed1,s1, parLine1, s0,par1,cov1,fXIO,useInnerOuter);
551 parLine0[0]=0; // reference frame in IO boundary
553 // if (nl0<kminCl || nl1<kminCl) continue;
557 if (TMath::Min(nl0,nl1)<kminCl) isOK=kFALSE;
558 // apply selection criteria
562 dp0=par0(0,0)-par1(0,0);
563 dp1=par0(1,0)-par1(1,0);
564 dp3=par0(3,0)-par1(3,0);
565 pp0=dp0/TMath::Sqrt(cov0(0,0)+cov1(0,0)+0.1*0.1);
566 pp1=dp1/TMath::Sqrt(cov0(1,1)+cov1(1,1)+0.0015*0.0015);
567 pp3=dp3/TMath::Sqrt(cov0(3,3)+cov1(3,3)+0.0015*0.0015);
569 if (TMath::Abs(dp0)>1.0) isOK=kFALSE;
570 if (TMath::Abs(dp1)>0.02) isOK=kFALSE;
571 if (TMath::Abs(dp3)>0.02) isOK=kFALSE;
572 if (TMath::Abs(pp0)>6) isOK=kFALSE;
573 if (TMath::Abs(pp1)>6) isOK=kFALSE;
574 if (TMath::Abs(pp3)>6) isOK=kFALSE;
577 FillHisto(parLine0,parLine1,s0,s1);
578 ProcessAlign(parLine0,parLine1,s0,s1);
579 UpdateKalman(s0,s1,par0, cov0, par1, cov1);
582 TTreeSRedirector *cstream = GetDebugStreamer();
584 (*cstream)<<"cosmic"<<
603 void AliTPCcalibAlign::ExportTrackPoints(AliESDEvent *event){
605 // Export track points for alignment - calibration
606 // export space points for pairs of tracks if possible
608 AliESDfriend *eESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
609 if (!eESDfriend) return;
610 Int_t ntracks=event->GetNumberOfTracks();
611 Int_t kMaxTracks=4; // maximal number of tracks for cosmic pairs
612 Int_t kMinVertexTracks=5; // maximal number of tracks for vertex mesurement
615 const Int_t kminCl = 60;
616 const Int_t kminClSum = 120;
617 //const Double_t kDistY = 5;
618 // const Double_t kDistZ = 40;
619 const Double_t kDistTh = 0.05;
620 const Double_t kDistThS = 0.002;
621 const Double_t kDist1Pt = 0.1;
622 const Double_t kMaxD0 =3; // max distance to the primary vertex
623 const Double_t kMaxD1 =5; // max distance to the primary vertex
624 const AliESDVertex *tpcVertex = 0;
625 // get the primary vertex TPC
626 if (ntracks>kMinVertexTracks) {
627 tpcVertex = event->GetPrimaryVertexSPD();
628 if (tpcVertex->GetNContributors()<kMinVertexTracks) tpcVertex=0;
633 Int_t index0=0,index1=0;
635 for (Int_t i0=0;i0<ntracks;++i0) {
636 AliESDtrack *track0 = event->GetTrack(i0);
637 if (!track0) continue;
638 if ((track0->GetStatus() & AliESDtrack::kTPCrefit)==0) continue;
639 if (track0->GetOuterParam()==0) continue;
640 if (track0->GetInnerParam()==0) continue;
641 if (TMath::Abs(track0->GetInnerParam()->GetSigned1Pt()-track0->GetOuterParam()->GetSigned1Pt())>kDist1Pt) continue;
642 if (TMath::Abs(track0->GetInnerParam()->GetSigned1Pt())>kDist1Pt) continue;
643 if (TMath::Abs(track0->GetInnerParam()->GetTgl()-track0->GetOuterParam()->GetTgl())>kDistThS) continue;
644 AliESDtrack *track1P = 0;
645 if (track0->GetTPCNcls()<kminCl) continue;
646 track0->GetImpactParameters(dca0[0],dca0[1]);
650 if (ntracks<kMaxTracks) for (Int_t i1=i0+1;i1<ntracks;++i1) {
651 if (i0==i1) continue;
652 AliESDtrack *track1 = event->GetTrack(i1);
653 if (!track1) continue;
654 if ((track1->GetStatus() & AliESDtrack::kTPCrefit)==0) continue;
655 if (track1->GetOuterParam()==0) continue;
656 if (track1->GetInnerParam()==0) continue;
657 if (track1->GetTPCNcls()<kminCl) continue;
658 if (TMath::Abs(track1->GetInnerParam()->GetSigned1Pt()-track1->GetOuterParam()->GetSigned1Pt())>kDist1Pt) continue;
659 if (TMath::Abs(track1->GetInnerParam()->GetTgl()-track1->GetOuterParam()->GetTgl())>kDistThS) continue;
660 if (TMath::Abs(track1->GetInnerParam()->GetSigned1Pt())>kDist1Pt) continue;
661 //track1->GetImpactParameters(dca1[0],dca1[1]);
662 //if (TMath::Abs(dca1[0]-dca0[0])>kDistY) continue;
663 //if (TMath::Abs(dca1[1]-dca0[1])>kDistZ) continue;
664 if (TMath::Abs(track0->GetTgl()+track1->GetTgl())>kDistTh) continue;
665 if (TMath::Abs(track0->GetSigned1Pt()+track1->GetSigned1Pt())>kDist1Pt) continue;
669 AliESDfriendTrack *friendTrack = 0;
670 TObject *calibObject=0;
671 AliTPCseed *seed0 = 0,*seed1=0;
673 friendTrack = (AliESDfriendTrack *)eESDfriend->GetTrack(index0);;
674 if (!friendTrack) continue;
675 for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
676 if ((seed0=dynamic_cast<AliTPCseed*>(calibObject))) break;
679 friendTrack = (AliESDfriendTrack *)eESDfriend->GetTrack(index1);;
680 if (!friendTrack) continue;
681 for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
682 if ((seed1=dynamic_cast<AliTPCseed*>(calibObject))) break;
686 Int_t npoints=0, ncont=0;
687 if (seed0) {npoints+=seed0->GetNumberOfClusters(); ncont++;}
688 if (seed1) {npoints+=seed1->GetNumberOfClusters(); ncont++;}
689 if (npoints<kminClSum) continue;
691 AliTrackPointArray array(npoints);
693 Double_t dxyz[3]={0,0,0};
694 Double_t dc[6]={0,0,0};
695 tpcVertex->GetXYZ(dxyz);
696 tpcVertex->GetCovarianceMatrix(dc);
697 Float_t xyz[3]={dxyz[0],dxyz[1],dxyz[2]};
698 Float_t cov[6]={dc[0]+1,dc[1],dc[2]+1,dc[3],dc[4],dc[5]+100.};
699 AliTrackPoint point(xyz,cov,73); // add point to not existing volume
700 Float_t dtpc[2],dcov[3];
701 track0->GetImpactParametersTPC(dtpc,dcov);
702 if (TMath::Abs(dtpc[0])>kMaxD0) continue;
703 if (TMath::Abs(dtpc[1])>kMaxD1) continue;
706 if (seed0) for (Int_t icl = 0; icl<160; icl++){
707 AliTPCclusterMI *cluster=seed0->GetClusterPointer(icl);
708 if (!cluster) continue;
711 cluster->GetGlobalXYZ(xyz);
712 cluster->GetGlobalCov(cov);
713 AliTrackPoint point(xyz,cov,cluster->GetDetector());
714 array.AddPoint(npoints, &point);
715 if (cpoint>=npoints) continue; //shoul not happen
716 array.AddPoint(cpoint, &point);
719 if (seed1) for (Int_t icl = 0; icl<160; icl++){
720 AliTPCclusterMI *cluster=seed1->GetClusterPointer(icl);
721 if (!cluster) continue;
724 cluster->GetGlobalXYZ(xyz);
725 cluster->GetGlobalCov(cov);
726 AliTrackPoint point(xyz,cov,cluster->GetDetector());
727 array.AddPoint(npoints, &point);
728 if (cpoint>=npoints) continue; //shoul not happen
729 array.AddPoint(cpoint, &point);
735 TTreeSRedirector *cstream = GetDebugStreamer();
737 Bool_t isVertex=(tpcVertex)? kTRUE:kFALSE;
738 Double_t tof0=track0->GetTOFsignal();
739 Double_t tof1=(track1P) ? track1P->GetTOFsignal(): 0;
740 static AliExternalTrackParam dummy;
741 AliExternalTrackParam *p0In = &dummy;
742 AliExternalTrackParam *p1In = &dummy;
743 AliExternalTrackParam *p0Out = &dummy;
744 AliExternalTrackParam *p1Out = &dummy;
746 AliESDVertex *pvertex= (tpcVertex)? (AliESDVertex *)tpcVertex: &vdummy;
748 p0In= new AliExternalTrackParam(*track0);
749 p0Out=new AliExternalTrackParam(*(track0->GetOuterParam()));
752 p1In= new AliExternalTrackParam(*track1P);
753 p1Out=new AliExternalTrackParam(*(track1P->GetOuterParam()));
756 (*cstream)<<"trackPoints"<<
757 "run="<<fRun<< // run number
758 "event="<<fEvent<< // event number
759 "time="<<fTime<< // time stamp of event
760 "trigger="<<fTrigger<< // trigger
761 "triggerClass="<<&fTriggerClass<< // trigger
762 "mag="<<fMagF<< // magnetic field
763 "pvertex.="<<pvertex<< // vertex
765 "isVertex="<<isVertex<< // flag is with prim vertex
766 "tof0="<<tof0<< // tof signal 0
767 "tof1="<<tof1<< // tof signal 1
768 "seed0.="<<seed0<< // track info
769 "ntracks="<<ntracks<< // number of tracks
770 "ncont="<<ncont<< // number of contributors
771 "p0In.="<<p0In<< // track parameters0
772 "p1In.="<<p1In<< // track parameters1
773 "p0Out.="<<p0Out<< // track parameters0
774 "p1Out.="<<p1Out<< // track parameters0
784 void AliTPCcalibAlign::ProcessSeed(AliTPCseed *seed) {
788 // make a kalman tracklets out of seed
790 UpdateClusterDeltaField(seed);
792 AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kKalman,
794 tracklets.SetOwner();
795 Int_t ntracklets = tracklets.GetEntries();
796 if (ntracklets<2) return;
799 for (Int_t i1=0;i1<ntracklets;i1++)
800 for (Int_t i2=0;i2<ntracklets;i2++){
801 if (i1==i2) continue;
802 AliTPCTracklet *t1=static_cast<AliTPCTracklet*>(tracklets[i1]);
803 AliTPCTracklet *t2=static_cast<AliTPCTracklet*>(tracklets[i2]);
804 AliExternalTrackParam *common1=0,*common2=0;
805 if (AliTPCTracklet::PropagateToMeanX(*t1,*t2,common1,common2)){
806 ProcessTracklets(*common1,*common2,seed, t1->GetSector(),t2->GetSector());
807 UpdateAlignSector(seed,t1->GetSector());
814 void AliTPCcalibAlign::Analyze(){
822 void AliTPCcalibAlign::Terminate(){
824 // Terminate function
825 // call base terminate + Eval of fitters
827 Info("AliTPCcalibAlign","Terminate");
829 AliTPCcalibBase::Terminate();
833 void AliTPCcalibAlign::UpdatePointCorrection(AliTPCPointCorrection * correction){
835 // Update point correction with alignment coefficients
837 for (Int_t isec=0;isec<36;isec++){
838 TMatrixD * matCorr = (TMatrixD*)(correction->fArraySectorIntParam.At(isec));
839 TMatrixD * matAlign = (TMatrixD*)(fArraySectorIntParam.At(isec));
840 TMatrixD * matAlignCovar = (TMatrixD*)(fArraySectorIntCovar.At(isec));
841 if (!matAlign) continue;
843 correction->fArraySectorIntParam.AddAt(matAlign->Clone(),isec);
844 correction->fArraySectorIntCovar.AddAt(matAlignCovar->Clone(),isec);
847 (*matCorr)+=(*matAlign);
848 correction->fArraySectorIntCovar.AddAt(matAlignCovar->Clone(),isec);
855 void AliTPCcalibAlign::ProcessTracklets(const AliExternalTrackParam &tp1,
856 const AliExternalTrackParam &tp2,
857 const AliTPCseed * seed,
860 // Process function to fill fitters
862 Double_t t1[10],t2[10];
863 Double_t &x1=t1[0], &y1=t1[1], &z1=t1[3], &dydx1=t1[2], &dzdx1=t1[4];
864 Double_t &x2=t2[0], &y2=t2[1], &z2=t2[3], &dydx2=t2[2], &dzdx2=t2[4];
868 Double_t snp1=tp1.GetSnp();
869 dydx1=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1));
870 Double_t tgl1=tp1.GetTgl();
871 // dz/dx = 1/(cos(theta)*cos(phi))
872 dzdx1=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1));
876 Double_t snp2=tp2.GetSnp();
877 dydx2=snp2/TMath::Sqrt((1.-snp2)*(1.+snp2));
878 Double_t tgl2=tp2.GetTgl();
879 dzdx2=tgl2/TMath::Sqrt((1.-snp2)*(1.+snp2));
888 t1[6]=TMath::Sqrt(tp1.GetSigmaY2());
889 t1[7]=TMath::Sqrt(tp1.GetSigmaSnp2());
890 t1[8]=TMath::Sqrt(tp1.GetSigmaZ2());
891 t1[9]=TMath::Sqrt(tp1.GetSigmaTgl2());
893 t2[6]=TMath::Sqrt(tp2.GetSigmaY2());
894 t2[7]=TMath::Sqrt(tp2.GetSigmaSnp2());
895 t2[8]=TMath::Sqrt(tp2.GetSigmaZ2());
896 t2[9]=TMath::Sqrt(tp2.GetSigmaTgl2());
900 Double_t parLine1[10];
901 Double_t parLine2[10];
902 TMatrixD par1(4,1),cov1(4,4),par2(4,1),cov2(4,4);
903 Bool_t useInnerOuter = kFALSE;
904 if (s1%36!=s2%36) useInnerOuter = fUseInnerOuter; // for left - right alignment bot sectors refit can be used if specified
905 Int_t nl1 = RefitLinear(seed,s1, parLine1, s1,par1,cov1,tp1.GetX(), useInnerOuter);
906 Int_t nl2 = RefitLinear(seed,s2, parLine2, s1,par2,cov2,tp1.GetX(), useInnerOuter);
907 parLine1[0]=tp1.GetX()-fXIO; // parameters in IROC-OROC boundary
908 parLine2[0]=tp1.GetX()-fXIO; // parameters in IROC-OROC boundary
912 Int_t accept = AcceptTracklet(tp1,tp2);
913 Int_t acceptLinear = AcceptTracklet(parLine1,parLine2);
916 if (fStreamLevel>1 && seed){
917 TTreeSRedirector *cstream = GetDebugStreamer();
919 static TVectorD vec1(5);
920 static TVectorD vec2(5);
921 static TVectorD vecL1(9);
922 static TVectorD vecL2(9);
923 vec1.SetElements(t1);
924 vec2.SetElements(t2);
925 vecL1.SetElements(parLine1);
926 vecL2.SetElements(parLine2);
927 AliExternalTrackParam *p1 = &((AliExternalTrackParam&)tp1);
928 AliExternalTrackParam *p2 = &((AliExternalTrackParam&)tp2);
929 (*cstream)<<"Tracklet"<<
931 "acceptLinear="<<acceptLinear<< // accept linear tracklets
932 "run="<<fRun<< // run number
933 "event="<<fEvent<< // event number
934 "time="<<fTime<< // time stamp of event
935 "trigger="<<fTrigger<< // trigger
936 "triggerClass="<<&fTriggerClass<< // trigger
937 "mag="<<fMagF<< // magnetic field
938 "isOK="<<accept<< // flag - used for alignment
945 "nl1="<<nl1<< // linear fit - n points
946 "nl2="<<nl2<< // linear fit - n points
947 "vl1.="<<&vecL1<< // linear fits
948 "vl2.="<<&vecL2<< // linear fits
952 if (TMath::Abs(fMagF)<0.005){
956 if (nl1>10 && nl2>10 &&(acceptLinear==0)){
957 if (seed) ProcessDiff(tp1,tp2, seed,s1,s2);
958 if (TMath::Abs(parLine1[2])<0.8 &&TMath::Abs(parLine1[2])<0.8 ){ //angular cut
959 FillHisto(parLine1,parLine2,s1,s2);
960 ProcessAlign(parLine1,parLine2,s1,s2);
961 FillHisto((AliExternalTrackParam*)&tp1,(AliExternalTrackParam*)&tp2,s1,s2);
962 FillHisto((AliExternalTrackParam*)&tp2,(AliExternalTrackParam*)&tp1,s2,s1);
963 //UpdateKalman(s1,s2,par1, cov1, par2, cov2); - OBSOLETE to be removed - 50 % of time here
967 if (accept>0) return;
969 // fill resolution histograms - previous cut included
970 if (TMath::Abs(fMagF)>0.005){
972 // use Kalman if mag field
975 ProcessDiff(tp1,tp2, seed,s1,s2);
976 FillHisto((AliExternalTrackParam*)&tp1,(AliExternalTrackParam*)&tp2,s1,s2);
977 FillHisto((AliExternalTrackParam*)&tp2,(AliExternalTrackParam*)&tp1,s2,s1);
979 FillHisto(t1,t2,s1,s2);
980 ProcessAlign(t1,t2,s1,s2);
984 void AliTPCcalibAlign::ProcessAlign(Double_t * t1,
988 // Do intersector alignment
990 //Process12(t1,t2,GetOrMakeFitter12(s1,s2));
991 //Process9(t1,t2,GetOrMakeFitter9(s1,s2));
992 Process6(t1,t2,GetOrMakeFitter6(s1,s2));
993 ++fPoints[GetIndex(s1,s2)];
996 void AliTPCcalibAlign::ProcessTree(TTree * chainTracklet, AliExternalComparison *comp){
998 // Process the debug streamer tree
999 // Possible to modify selection criteria
1000 // Used with entry list
1002 TTreeSRedirector * cstream = new TTreeSRedirector("aligndump.root");
1004 AliTPCcalibAlign *align = this;
1006 TVectorD * vec1 = 0;
1007 TVectorD * vec2 = 0;
1008 AliExternalTrackParam * tp1 = 0;
1009 AliExternalTrackParam * tp2 = 0;
1014 Int_t entries=chainTracklet->GetEntries();
1015 for (Int_t i=0; i< entries; i++){
1016 chainTracklet->GetBranch("tp1.")->SetAddress(&tp1);
1017 chainTracklet->GetBranch("tp2.")->SetAddress(&tp2);
1018 chainTracklet->GetBranch("v1.")->SetAddress(&vec1);
1019 chainTracklet->GetBranch("v2.")->SetAddress(&vec2);
1020 chainTracklet->GetBranch("s1")->SetAddress(&s1);
1021 chainTracklet->GetBranch("s2")->SetAddress(&s2);
1022 chainTracklet->GetEntry(i);
1023 if (!vec1) continue;
1024 if (!vec2) continue;
1027 if (!vec1->GetMatrixArray()) continue;
1028 if (!vec2->GetMatrixArray()) continue;
1029 // make a local copy
1030 AliExternalTrackParam par1(*tp1);
1031 AliExternalTrackParam par2(*tp2);
1032 TVectorD svec1(*vec1);
1033 TVectorD svec2(*vec2);
1035 if (s1==s2) continue;
1036 if (i%100==0) printf("%d\t%d\t%d\t%d\t\n",i, npoints,s1,s2);
1037 AliExternalTrackParam cpar1(par1);
1038 AliExternalTrackParam cpar2(par2);
1039 Constrain1Pt(cpar1,par2,fNoField);
1040 Constrain1Pt(cpar2,par1,fNoField);
1041 Bool_t acceptComp = kFALSE;
1042 if (comp) acceptComp=comp->AcceptPair(&par1,&par2);
1043 if (comp) acceptComp&=comp->AcceptPair(&cpar1,&cpar2);
1045 Int_t reject = align->AcceptTracklet(par1,par2);
1046 Int_t rejectC =align->AcceptTracklet(cpar1,cpar2);
1048 if (1||fStreamLevel>0){
1049 (*cstream)<<"Tracklet"<<
1053 "rejectC="<<rejectC<<
1054 "acceptComp="<<acceptComp<<
1068 if (acceptComp) comp->Process(&cpar1,&cpar2);
1070 if (reject>0 || rejectC>0) continue;
1072 align->ProcessTracklets(cpar1,cpar2,0,s1,s2);
1073 align->ProcessTracklets(cpar2,cpar1,0,s2,s1);
1080 Int_t AliTPCcalibAlign::AcceptTracklet(const AliExternalTrackParam &p1,
1081 const AliExternalTrackParam &p2) const
1085 // Accept pair of tracklets?
1089 TCut cutS0("sqrt(tp2.fC[0]+tp1.fC[0])<0.2");
1090 TCut cutS1("sqrt(tp2.fC[2]+tp1.fC[2])<0.2");
1091 TCut cutS2("sqrt(tp2.fC[5]+tp1.fC[5])<0.01");
1092 TCut cutS3("sqrt(tp2.fC[9]+tp1.fC[9])<0.01");
1093 TCut cutS4("sqrt(tp2.fC[14]+tp1.fC[14])<0.25");
1094 TCut cutS=cutS0+cutS1+cutS2+cutS3+cutS4;
1096 // parameters matching cuts
1097 TCut cutP0("abs(tp1.fP[0]-tp2.fP[0])<0.6");
1098 TCut cutP1("abs(tp1.fP[1]-tp2.fP[1])<0.6");
1099 TCut cutP2("abs(tp1.fP[2]-tp2.fP[2])<0.03");
1100 TCut cutP3("abs(tp1.fP[3]-tp2.fP[3])<0.03");
1101 TCut cutP4("abs(tp1.fP[4]-tp2.fP[4])<0.5");
1102 TCut cutPP4("abs(tp1.fP[4]-tp2.fP[4])/sqrt(tp2.fC[14]+tp1.fC[14])<3");
1103 TCut cutP=cutP0+cutP1+cutP2+cutP3+cutP4+cutPP4;
1108 const Double_t *cp1 = p1.GetCovariance();
1109 const Double_t *cp2 = p2.GetCovariance();
1110 if (TMath::Sqrt(cp1[0]+cp2[0])>0.2) reject|=1;;
1111 if (TMath::Sqrt(cp1[2]+cp2[2])>0.2) reject|=2;
1112 if (TMath::Sqrt(cp1[5]+cp2[5])>0.01) reject|=4;
1113 if (TMath::Sqrt(cp1[9]+cp2[9])>0.01) reject|=8;
1114 if (TMath::Sqrt(cp1[14]+cp2[14])>0.2) reject|=16;
1116 //parameters difference
1117 const Double_t *tp1 = p1.GetParameter();
1118 const Double_t *tp2 = p2.GetParameter();
1119 if (TMath::Abs(tp1[0]-tp2[0])>0.6) reject|=32;
1120 if (TMath::Abs(tp1[1]-tp2[1])>0.6) reject|=64;
1121 if (TMath::Abs(tp1[2]-tp2[2])>0.03) reject|=128;
1122 if (TMath::Abs(tp1[3]-tp2[3])>0.03) reject|=526;
1123 if (TMath::Abs(tp1[4]-tp2[4])>0.4) reject|=1024;
1124 if (TMath::Abs(tp1[4]-tp2[4])/TMath::Sqrt(cp1[14]+cp2[14])>4) reject|=2048;
1127 if (TMath::Abs(tp2[1])>235) reject|=2*4096;
1137 Int_t AliTPCcalibAlign::AcceptTracklet(const Double_t *t1, const Double_t *t2) const
1140 // accept tracklet -
1141 // dist cut + 6 sigma cut
1143 Double_t dy = t2[1]-t1[1];
1144 Double_t dphi = t2[2]-t1[2];
1145 Double_t dz = t2[3]-t1[3];
1146 Double_t dtheta = t2[4]-t1[4];
1148 Double_t sy = TMath::Sqrt(t1[6]*t1[6]+t2[6]*t2[6]+0.05*0.05);
1149 Double_t sdydx = TMath::Sqrt(t1[7]*t1[7]+t2[7]*t2[7]+0.001*0.001);
1150 Double_t sz = TMath::Sqrt(t1[8]*t1[8]+t2[8]*t2[8]+0.05*0.05);
1151 Double_t sdzdx = TMath::Sqrt(t1[9]*t1[9]+t2[9]*t2[9]+0.001*0.001);
1154 if (TMath::Abs(dy)>1.) reject|=2;
1155 if (TMath::Abs(dphi)>0.1) reject|=4;
1156 if (TMath::Abs(dz)>1.) reject|=8;
1157 if (TMath::Abs(dtheta)>0.1) reject|=16;
1159 if (TMath::Abs(dy/sy)>6) reject|=32;
1160 if (TMath::Abs(dphi/sdydx)>6) reject|=64;
1161 if (TMath::Abs(dz/sz)>6) reject|=128;
1162 if (TMath::Abs(dtheta/sdzdx)>6) reject|=256;
1167 void AliTPCcalibAlign::ProcessDiff(const AliExternalTrackParam &t1,
1168 const AliExternalTrackParam &t2,
1169 const AliTPCseed *seed,
1173 // Process local residuals function
1178 TVectorD vecClY(160);
1179 TVectorD vecClZ(160);
1180 TClonesArray arrCl("AliTPCclusterMI",160);
1181 arrCl.ExpandCreateFast(160);
1182 Int_t count1=0, count2=0;
1184 for (Int_t i=0;i<160;++i) {
1185 AliTPCclusterMI *c=seed->GetClusterPointer(i);
1190 AliTPCclusterMI & cl = (AliTPCclusterMI&) (*arrCl[i]);
1191 if (c->GetDetector()!=s1 && c->GetDetector()!=s2) continue;
1192 vecClY[i] = c->GetY();
1193 vecClZ[i] = c->GetZ();
1195 const AliExternalTrackParam *par = (c->GetDetector()==s1)? &t1:&t2;
1196 if (c->GetDetector()==s1) ++count1;
1197 if (c->GetDetector()==s2) ++count2;
1198 Double_t gxyz[3],xyz[3];
1200 Float_t bz = AliTracker::GetBz(gxyz);
1201 par->GetYAt(c->GetX(), bz, xyz[1]);
1202 par->GetZAt(c->GetX(), bz, xyz[2]);
1203 vecX[i] = c->GetX();
1209 if (fStreamLevel>5 && count1>10 && count2>10){
1211 // huge output - cluster residuals to be investigated
1213 TTreeSRedirector *cstream = GetDebugStreamer();
1214 AliExternalTrackParam *p1 = &((AliExternalTrackParam&)t1);
1215 AliExternalTrackParam *p2 = &((AliExternalTrackParam&)t2);
1218 Track->Draw("Cl[].fY-vtY.fElements:vtY.fElements-vtX.fElements*tan(pi/18.)>>his(100,-10,0)","Cl.fY!=0&&abs(Cl.fY-vtY.fElements)<1","prof");
1223 (*cstream)<<"Track"<<
1224 "run="<<fRun<< // run number
1225 "event="<<fEvent<< // event number
1226 "time="<<fTime<< // time stamp of event
1227 "trigger="<<fTrigger<< // trigger
1228 "triggerClass="<<&fTriggerClass<< // trigger
1229 "mag="<<fMagF<< // magnetic field
1251 void AliTPCcalibAlign::Process12(const Double_t *t1,
1253 TLinearFitter *fitter) const
1255 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1256 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
1257 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
1258 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
1259 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
1261 // a00 a01 a02 a03 p[0] p[1] p[2] p[9]
1262 // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10]
1263 // a20 a21 a22 a23 p[6] p[7] p[8] p[11]
1267 const Double_t &x1=t1[0], &y1=t1[1], &z1=t1[3], &dydx1=t1[2], &dzdx1=t1[4];
1268 const Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[3], &dydx2=t2[2], &dzdx2=t2[4];
1271 Double_t sy = TMath::Sqrt(t1[6]*t1[6]+t2[6]*t2[6]);
1272 Double_t sdydx = TMath::Sqrt(t1[7]*t1[7]+t2[7]*t2[7]);
1273 Double_t sz = TMath::Sqrt(t1[8]*t1[8]+t2[8]*t2[8]);
1274 Double_t sdzdx = TMath::Sqrt(t1[9]*t1[9]+t2[9]*t2[9]);
1279 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1280 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
1281 // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2
1282 for (Int_t i=0; i<12;i++) p[i]=0.;
1287 p[0+1] = y1*dydx2; // a01
1288 p[0+2] = z1*dydx2; // a02
1289 p[9+0] = dydx2; // a03
1291 fitter->AddPoint(p,value,sy);
1293 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1294 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
1295 // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2;
1296 for (Int_t i=0; i<12;i++) p[i]=0.;
1301 p[0+1] = y1*dzdx2; // a01
1302 p[0+2] = z1*dzdx2; // a02
1303 p[9+0] = dzdx2; // a03
1305 fitter->AddPoint(p,value,sz);
1307 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
1308 // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0
1309 for (Int_t i=0; i<12;i++) p[i]=0.;
1311 p[3+1] = dydx1; // a11
1312 p[3+2] = dzdx1; // a12
1313 p[0+0] = -dydx2; // a00
1314 p[0+1] = -dydx1*dydx2; // a01
1315 p[0+2] = -dzdx1*dydx2; // a02
1317 fitter->AddPoint(p,value,sdydx);
1319 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
1320 // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0
1321 for (Int_t i=0; i<12;i++) p[i]=0.;
1323 p[6+1] = dydx1; // a21
1324 p[6+2] = dzdx1; // a22
1325 p[0+0] = -dzdx2; // a00
1326 p[0+1] = -dydx1*dzdx2; // a01
1327 p[0+2] = -dzdx1*dzdx2; // a02
1329 fitter->AddPoint(p,value,sdzdx);
1332 void AliTPCcalibAlign::Process9(const Double_t * const t1,
1333 const Double_t * const t2,
1334 TLinearFitter *fitter) const
1336 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1337 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
1338 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
1339 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
1340 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
1342 // a00 a01 a02 a03 1 p[0] p[1] p[6]
1343 // a10 a11 a12 a13 ==> p[2] 1 p[3] p[7]
1344 // a20 a21 a21 a23 p[4] p[5] 1 p[8]
1347 const Double_t &x1=t1[0], &y1=t1[1], &z1=t1[3], &dydx1=t1[2], &dzdx1=t1[4];
1348 const Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[3], &dydx2=t2[2], &dzdx2=t2[4];
1350 Double_t sy = TMath::Sqrt(t1[6]*t1[6]+t2[6]*t2[6]);
1351 Double_t sdydx = TMath::Sqrt(t1[7]*t1[7]+t2[7]*t2[7]);
1352 Double_t sz = TMath::Sqrt(t1[8]*t1[8]+t2[8]*t2[8]);
1353 Double_t sdzdx = TMath::Sqrt(t1[9]*t1[9]+t2[9]*t2[9]);
1359 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1360 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
1361 // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2
1362 for (Int_t i=0; i<12;i++) p[i]=0.;
1367 p[0] += y1*dydx2; // a01
1368 p[1] += z1*dydx2; // a02
1369 p[6] += dydx2; // a03
1370 value = y2-y1; //-a11
1371 fitter->AddPoint(p,value,sy);
1373 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1374 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
1375 // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2;
1376 for (Int_t i=0; i<12;i++) p[i]=0.;
1381 p[0] += y1*dzdx2; // a01
1382 p[1] += z1*dzdx2; // a02
1383 p[6] += dzdx2; // a03
1384 value = z2-z1; //-a22
1385 fitter->AddPoint(p,value,sz);
1387 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
1388 // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0
1389 for (Int_t i=0; i<12;i++) p[i]=0.;
1391 //p[] += dydx1; // a11
1392 p[3] += dzdx1; // a12
1393 //p[] += -dydx2; // a00
1394 p[0] += -dydx1*dydx2; // a01
1395 p[1] += -dzdx1*dydx2; // a02
1396 value = -dydx1+dydx2; // -a11 + a00
1397 fitter->AddPoint(p,value,sdydx);
1399 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
1400 // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0
1401 for (Int_t i=0; i<12;i++) p[i]=0.;
1403 p[5] += dydx1; // a21
1404 //p[] += dzdx1; // a22
1405 //p[] += -dzdx2; // a00
1406 p[0] += -dydx1*dzdx2; // a01
1407 p[1] += -dzdx1*dzdx2; // a02
1408 value = -dzdx1+dzdx2; // -a22 + a00
1409 fitter->AddPoint(p,value,sdzdx);
1412 void AliTPCcalibAlign::Process6(const Double_t *const t1,
1413 const Double_t *const t2,
1414 TLinearFitter *fitter) const
1416 // x2 = 1 *x1 +-a01*y1 + 0 +a03
1417 // y2 = a01*x1 + 1 *y1 + 0 +a13
1418 // z2 = a20*x1 + a21*y1 + 1 *z1 +a23
1419 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
1420 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
1422 // a00 a01 a02 a03 1 -p[0] 0 p[3]
1423 // a10 a11 a12 a13 ==> p[0] 1 0 p[4]
1424 // a20 a21 a21 a23 p[1] p[2] 1 p[5]
1426 const Double_t &x1=t1[0], &y1=t1[1], &z1=t1[3], &dydx1=t1[2], &dzdx1=t1[4];
1427 const Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[3], &dydx2=t2[2], &dzdx2=t2[4];
1430 Double_t sy = TMath::Sqrt(t1[6]*t1[6]+t2[6]*t2[6]);
1431 Double_t sdydx = TMath::Sqrt(t1[7]*t1[7]+t2[7]*t2[7]);
1432 Double_t sz = TMath::Sqrt(t1[8]*t1[8]+t2[8]*t2[8]);
1433 Double_t sdzdx = TMath::Sqrt(t1[9]*t1[9]+t2[9]*t2[9]);
1438 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1439 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
1440 // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2
1441 for (Int_t i=0; i<12;i++) p[i]=0.;
1446 p[0] += -y1*dydx2; // a01
1447 //p[] += z1*dydx2; // a02
1448 p[3] += dydx2; // a03
1449 value = y2-y1; //-a11
1450 fitter->AddPoint(p,value,sy);
1452 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
1453 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
1454 // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2;
1455 for (Int_t i=0; i<12;i++) p[i]=0.;
1460 p[0] += -y1*dzdx2; // a01
1461 //p[] += z1*dzdx2; // a02
1462 p[3] += dzdx2; // a03
1463 value = z2-z1; //-a22
1464 fitter->AddPoint(p,value,sz);
1466 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
1467 // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0
1468 for (Int_t i=0; i<12;i++) p[i]=0.;
1470 //p[] += dydx1; // a11
1471 //p[] += dzdx1; // a12
1472 //p[] += -dydx2; // a00
1473 //p[0] += dydx1*dydx2; // a01 FIXME- 0912 MI
1474 //p[] += -dzdx1*dydx2; // a02
1475 value = -dydx1+dydx2; // -a11 + a00
1476 fitter->AddPoint(p,value,sdydx);
1478 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
1479 // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0
1480 for (Int_t i=0; i<12;i++) p[i]=0.;
1482 // p[2] += dydx1; // a21 FIXME- 0912 MI
1483 //p[] += dzdx1; // a22
1484 //p[] += -dzdx2; // a00
1485 //p[0] += dydx1*dzdx2; // a01 FIXME- 0912 MI
1486 //p[] += -dzdx1*dzdx2; // a02
1487 value = -dzdx1+dzdx2; // -a22 + a00
1488 fitter->AddPoint(p,value,sdzdx);
1494 void AliTPCcalibAlign::EvalFitters(Int_t minPoints) {
1498 // Perform the fitting using linear fitters
1501 TFile fff("alignDebug.root","recreate");
1502 for (Int_t s1=0;s1<72;++s1)
1503 for (Int_t s2=0;s2<72;++s2){
1504 if ((f=GetFitter12(s1,s2))&&fPoints[GetIndex(s1,s2)]>minPoints) {
1505 // cerr<<s1<<","<<s2<<": "<<fPoints[GetIndex(s1,s2)]<<endl;
1507 cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl;
1508 f->Write(Form("f12_%d_%d",s1,s2));
1510 f->Write(Form("f12_%d_%d",s1,s2));
1513 if ((f=GetFitter9(s1,s2))&&fPoints[GetIndex(s1,s2)]>minPoints) {
1514 // cerr<<s1<<","<<s2<<": "<<fPoints[GetIndex(s1,s2)]<<endl;
1516 cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl;
1518 f->Write(Form("f9_%d_%d",s1,s2));
1521 if ((f=GetFitter6(s1,s2))&&fPoints[GetIndex(s1,s2)]>minPoints) {
1522 // cerr<<s1<<","<<s2<<": "<<fPoints[GetIndex(s1,s2)]<<endl;
1524 cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl;
1526 f->Write(Form("f6_%d_%d",s1,s2));
1531 for (Int_t s1=0;s1<72;++s1)
1532 for (Int_t s2=0;s2<72;++s2){
1533 if (GetTransformation12(s1,s2,mat)){
1534 fMatrixArray12.AddAt(mat.Clone(), GetIndex(s1,s2));
1536 if (GetTransformation9(s1,s2,mat)){
1537 fMatrixArray9.AddAt(mat.Clone(), GetIndex(s1,s2));
1539 if (GetTransformation6(s1,s2,mat)){
1540 fMatrixArray6.AddAt(mat.Clone(), GetIndex(s1,s2));
1543 //this->Write("align");
1547 TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter12(Int_t s1,Int_t s2) {
1549 // get or make fitter - general linear transformation
1551 static Int_t counter12=0;
1552 static TF1 f12("f12","x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]++x[9]++x[10]++x[11]");
1553 TLinearFitter * fitter = GetFitter12(s1,s2);
1554 if (fitter) return fitter;
1555 // fitter =new TLinearFitter(12,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]++x[9]++x[10]++x[11]");
1556 fitter =new TLinearFitter(&f12,"");
1557 fitter->StoreData(kFALSE);
1558 fFitterArray12.AddAt(fitter,GetIndex(s1,s2));
1560 // if (GetDebugLevel()>0) cerr<<"Creating fitter12 "<<s1<<","<<s2<<" : "<<counter12<<endl;
1564 TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter9(Int_t s1,Int_t s2) {
1566 //get or make fitter - general linear transformation - no scaling
1568 static Int_t counter9=0;
1569 static TF1 f9("f9","x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]");
1570 TLinearFitter * fitter = GetFitter9(s1,s2);
1571 if (fitter) return fitter;
1572 // fitter =new TLinearFitter(9,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]");
1573 fitter =new TLinearFitter(&f9,"");
1574 fitter->StoreData(kFALSE);
1575 fFitterArray9.AddAt(fitter,GetIndex(s1,s2));
1577 // if (GetDebugLevel()>0) cerr<<"Creating fitter12 "<<s1<<","<<s2<<" : "<<counter9<<endl;
1581 TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter6(Int_t s1,Int_t s2) {
1583 // get or make fitter - 6 paramater linear tranformation
1586 // - tilting x-z, y-z
1587 static Int_t counter6=0;
1588 static TF1 f6("f6","x[0]++x[1]++x[2]++x[3]++x[4]++x[5]");
1589 TLinearFitter * fitter = GetFitter6(s1,s2);
1590 if (fitter) return fitter;
1591 // fitter=new TLinearFitter(6,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]");
1592 fitter=new TLinearFitter(&f6,"");
1593 fitter->StoreData(kFALSE);
1594 fFitterArray6.AddAt(fitter,GetIndex(s1,s2));
1596 // if (GetDebugLevel()>0) cerr<<"Creating fitter6 "<<s1<<","<<s2<<" : "<<counter6<<endl;
1604 Bool_t AliTPCcalibAlign::GetTransformation12(Int_t s1,Int_t s2,TMatrixD &a) {
1606 // GetTransformation matrix - 12 paramaters - generael linear transformation
1608 if (!GetFitter12(s1,s2))
1612 GetFitter12(s1,s2)->GetParameters(p);
1614 a[0][0]=p[0]; a[0][1]=p[1]; a[0][2]=p[2]; a[0][3]=p[9];
1615 a[1][0]=p[3]; a[1][1]=p[4]; a[1][2]=p[5]; a[1][3]=p[10];
1616 a[2][0]=p[6]; a[2][1]=p[7]; a[2][2]=p[8]; a[2][3]=p[11];
1617 a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.;
1622 Bool_t AliTPCcalibAlign::GetTransformation9(Int_t s1,Int_t s2,TMatrixD &a) {
1624 // GetTransformation matrix - 9 paramaters - general linear transformation
1627 if (!GetFitter9(s1,s2))
1631 GetFitter9(s1,s2)->GetParameters(p);
1633 a[0][0]=1; a[0][1]=p[0]; a[0][2]=p[1]; a[0][3]=p[6];
1634 a[1][0]=p[2]; a[1][1]=1; a[1][2]=p[3]; a[1][3]=p[7];
1635 a[2][0]=p[4]; a[2][1]=p[5]; a[2][2]=1; a[2][3]=p[8];
1636 a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.;
1641 Bool_t AliTPCcalibAlign::GetTransformation6(Int_t s1,Int_t s2,TMatrixD &a) {
1643 // GetTransformation matrix - 6 paramaters
1646 // 2 tilting x-z y-z
1647 if (!GetFitter6(s1,s2))
1651 GetFitter6(s1,s2)->GetParameters(p);
1653 a[0][0]=1; a[0][1]=-p[0];a[0][2]=0; a[0][3]=p[3];
1654 a[1][0]=p[0]; a[1][1]=1; a[1][2]=0; a[1][3]=p[4];
1655 a[2][0]=p[1]; a[2][1]=p[2]; a[2][2]=1; a[2][3]=p[5];
1656 a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.;
1661 void AliTPCcalibAlign::MakeResidualHistos(){
1663 // Make cluster residual histograms
1665 Double_t xminTrack[9], xmaxTrack[9];
1667 TString axisName[9],axisTitle[9];
1669 // 0 - delta of interest
1670 // 1 - global phi in sector number as float
1675 axisName[0]="delta"; axisTitle[0]="#Delta (cm)";
1676 if (TMath::Abs(AliTracker::GetBz())<0.01){
1677 binsTrack[0]=60; xminTrack[0]=-1.2; xmaxTrack[0]=1.2;
1679 binsTrack[0]=60; xminTrack[0]=-0.6; xmaxTrack[0]=0.6;
1682 axisName[1]="sector"; axisTitle[1]="Sector Number";
1683 binsTrack[1]=180; xminTrack[1]=0; xmaxTrack[1]=18;
1685 axisName[2]="R"; axisTitle[2]="r (cm)";
1686 binsTrack[2]=53; xminTrack[2]=85.; xmaxTrack[2]=245.;
1689 axisName[3]="kZ"; axisTitle[3]="dz/dx";
1690 binsTrack[3]=36; xminTrack[3]=-1.8; xmaxTrack[3]=1.8;
1692 fClusterDelta[0] = new THnSparseS("#Delta_{Y} (cm)","#Delta_{Y} (cm)", 4, binsTrack,xminTrack, xmaxTrack);
1693 fClusterDelta[1] = new THnSparseS("#Delta_{Z} (cm)","#Delta_{Z} (cm)", 4, binsTrack,xminTrack, xmaxTrack);
1697 for (Int_t ivar=0;ivar<2;ivar++){
1698 for (Int_t ivar2=0;ivar2<4;ivar2++){
1699 fClusterDelta[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
1700 fClusterDelta[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
1707 void AliTPCcalibAlign::MakeResidualHistosTracklet(){
1709 // Make tracklet residual histograms
1711 Double_t xminTrack[9], xmaxTrack[9];
1713 TString axisName[9],axisTitle[9];
1715 // 0 - delta of interest
1716 // 1 - global phi in sector number as float
1724 axisName[0]="delta"; axisTitle[0]="#Delta (cm)";
1725 binsTrack[0]=60; xminTrack[0]=-0.6; xmaxTrack[0]=0.6;
1727 axisName[1]="phi"; axisTitle[1]="#phi";
1728 binsTrack[1]=180; xminTrack[1]=-TMath::Pi(); xmaxTrack[1]=TMath::Pi();
1730 axisName[2]="localX"; axisTitle[2]="x (cm)";
1731 binsTrack[2]=10; xminTrack[2]=120.; xmaxTrack[2]=200.;
1733 axisName[3]="kY"; axisTitle[3]="dy/dx";
1734 binsTrack[3]=10; xminTrack[3]=-0.5; xmaxTrack[3]=0.5;
1736 axisName[4]="kZ"; axisTitle[4]="dz/dx";
1737 binsTrack[4]=22; xminTrack[4]=-1.1; xmaxTrack[4]=1.1;
1739 axisName[5]="is1"; axisTitle[5]="is1";
1740 binsTrack[5]=72; xminTrack[5]=0; xmaxTrack[5]=72;
1742 axisName[6]="is0"; axisTitle[6]="is0";
1743 binsTrack[6]=72; xminTrack[6]=0; xmaxTrack[6]=72;
1745 axisName[7]="z"; axisTitle[7]="z(cm)";
1746 binsTrack[7]=12; xminTrack[7]=-240; xmaxTrack[7]=240;
1748 axisName[8]="IsPrimary"; axisTitle[8]="Is Primary";
1749 binsTrack[8]=2; xminTrack[8]=-0.1; xmaxTrack[8]=1.1;
1752 xminTrack[0]=-0.25; xmaxTrack[0]=0.25;
1753 fTrackletDelta[0] = new THnSparseF("#Delta_{Y} (cm)","#Delta_{Y} (cm)", 9, binsTrack,xminTrack, xmaxTrack);
1754 xminTrack[0]=-0.5; xmaxTrack[0]=0.5;
1755 fTrackletDelta[1] = new THnSparseF("#Delta_{Z} (cm)","#Delta_{Z} (cm)", 9, binsTrack,xminTrack, xmaxTrack);
1756 xminTrack[0]=-0.005; xmaxTrack[0]=0.005;
1757 fTrackletDelta[2] = new THnSparseF("#Delta_{kY}","#Delta_{kY}", 9, binsTrack,xminTrack, xmaxTrack);
1758 xminTrack[0]=-0.008; xmaxTrack[0]=0.008;
1759 fTrackletDelta[3] = new THnSparseF("#Delta_{kZ}","#Delta_{kZ}", 9, binsTrack,xminTrack, xmaxTrack);
1763 for (Int_t ivar=0;ivar<4;ivar++){
1764 for (Int_t ivar2=0;ivar2<9;ivar2++){
1765 fTrackletDelta[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
1766 fTrackletDelta[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
1774 void AliTPCcalibAlign::FillHisto(const Double_t *t1,
1776 Int_t s1,Int_t s2) {
1778 // Fill residual histograms
1784 Double_t dy = t2[1]-t1[1];
1785 Double_t dphi = t2[2]-t1[2];
1786 Double_t dz = t2[3]-t1[3];
1787 Double_t dtheta = t2[4]-t1[4];
1788 Double_t zmean = (t2[3]+t1[3])*0.5;
1790 GetHisto(kPhi,s1,s2,kTRUE)->Fill(dphi);
1791 GetHisto(kTheta,s1,s2,kTRUE)->Fill(dtheta);
1792 GetHisto(kY,s1,s2,kTRUE)->Fill(dy);
1793 GetHisto(kZ,s1,s2,kTRUE)->Fill(dz);
1795 GetHisto(kPhiZ,s1,s2,kTRUE)->Fill(zmean,dphi);
1796 GetHisto(kThetaZ,s1,s2,kTRUE)->Fill(zmean,dtheta);
1797 GetHisto(kYz,s1,s2,kTRUE)->Fill(zmean,dy);
1798 GetHisto(kZz,s1,s2,kTRUE)->Fill(zmean,dz);
1800 GetHisto(kYPhi,s1,s2,kTRUE)->Fill(t2[2],dy);
1801 GetHisto(kZTheta,s1,s2,kTRUE)->Fill(t2[4],dz);
1806 void AliTPCcalibAlign::FillHisto(AliExternalTrackParam *tp1,
1807 AliExternalTrackParam *tp2,
1808 Int_t s1,Int_t s2) {
1810 // Fill residual histograms
1812 if (s2<s1) return;//
1813 const Double_t kEpsilon=0.001;
1814 Double_t x[8]={0,0,0,0,0,0,0,0};
1815 AliExternalTrackParam p1(*tp1);
1816 AliExternalTrackParam p2(*tp2);
1818 // inner outer - match at the IROC-OROC boundary
1819 if (!p1.PropagateTo(fXIO, AliTrackerBase::GetBz())) return;
1821 if (!p2.Rotate(p1.GetAlpha())) return;
1822 if (!p2.PropagateTo(p1.GetX(),AliTrackerBase::GetBz())) return;
1823 if (TMath::Abs(p1.GetX()-p2.GetX())>kEpsilon) return;
1826 x[1]=TMath::ATan2(xyz[1],xyz[0]);
1828 x[3]=0.5*(p1.GetSnp()+p2.GetSnp()); // mean snp
1829 x[4]=0.5*(p1.GetTgl()+p2.GetTgl()); // mean tgl
1832 x[7]=0.5*(p1.GetZ()+p2.GetZ());
1834 Int_t isPrimary = (TMath::Abs(p1.GetTgl()-p1.GetZ()/p1.GetX())<0.1) ? 1:0;
1837 x[0]=p2.GetY()-p1.GetY();
1838 fTrackletDelta[0]->Fill(x);
1839 x[0]=p2.GetZ()-p1.GetZ();
1840 fTrackletDelta[1]->Fill(x);
1841 x[0]=p2.GetSnp()-p1.GetSnp();
1842 fTrackletDelta[2]->Fill(x);
1843 x[0]=p2.GetTgl()-p1.GetTgl();
1844 fTrackletDelta[3]->Fill(x);
1845 TTreeSRedirector *cstream = GetDebugStreamer();
1847 (*cstream)<<"trackletMatch"<<
1848 "tp1.="<<tp1<< // input tracklet
1850 "p1.="<<&p1<< // tracklet in the ref frame
1861 TH1 * AliTPCcalibAlign::GetHisto(HistoType type, Int_t s1, Int_t s2, Bool_t force)
1864 // return specified residual histogram - it is only QA
1865 // if force specified the histogram and given histogram is not existing
1866 // new histogram is created
1868 if (GetIndex(s1,s2)>=72*72) return 0;
1869 TObjArray *histoArray=0;
1872 histoArray = &fDyHistArray; break;
1874 histoArray = &fDzHistArray; break;
1876 histoArray = &fDphiHistArray; break;
1878 histoArray = &fDthetaHistArray; break;
1880 histoArray = &fDyPhiHistArray; break;
1882 histoArray = &fDzThetaHistArray; break;
1884 histoArray = &fDyZHistArray; break;
1886 histoArray = &fDzZHistArray; break;
1888 histoArray = &fDphiZHistArray; break;
1890 histoArray = &fDthetaZHistArray; break;
1892 TH1 * histo= (TH1*)histoArray->At(GetIndex(s1,s2));
1893 if (histo) return histo;
1894 if (force==kFALSE) return 0;
1900 name<<"hist_y_"<<s1<<"_"<<s2;
1901 title<<"Y Missalignment for sectors "<<s1<<" and "<<s2;
1902 histo =new TH1D(name.str().c_str(),title.str().c_str(),100,-0.5,0.5); // +/- 5 mm
1905 name<<"hist_z_"<<s1<<"_"<<s2;
1906 title<<"Z Missalignment for sectors "<<s1<<" and "<<s2;
1907 histo = new TH1D(name.str().c_str(),title.str().c_str(),100,-0.3,0.3); // +/- 3 mm
1910 name<<"hist_phi_"<<s1<<"_"<<s2;
1911 title<<"Phi Missalignment for sectors "<<s1<<" and "<<s2;
1912 histo =new TH1D(name.str().c_str(),title.str().c_str(),100,-0.01,0.01); // +/- 10 mrad
1915 name<<"hist_theta_"<<s1<<"_"<<s2;
1916 title<<"Theta Missalignment for sectors "<<s1<<" and "<<s2;
1917 histo =new TH1D(name.str().c_str(),title.str().c_str(),100,-0.01,0.01); // +/- 10 mrad
1922 name<<"hist_yphi_"<<s1<<"_"<<s2;
1923 title<<"Y Missalignment for sectors Phi"<<s1<<" and "<<s2;
1924 histo =new TH2F(name.str().c_str(),title.str().c_str(),20,-1,1,100,-0.5,0.5); // +/- 5 mm
1927 name<<"hist_ztheta_"<<s1<<"_"<<s2;
1928 title<<"Z Missalignment for sectors Theta"<<s1<<" and "<<s2;
1929 histo = new TH2F(name.str().c_str(),title.str().c_str(),20,-1,1,100,-0.3,0.3); // +/- 3 mm
1935 name<<"hist_yz_"<<s1<<"_"<<s2;
1936 title<<"Y Missalignment for sectors Z"<<s1<<" and "<<s2;
1937 histo =new TH2F(name.str().c_str(),title.str().c_str(),20,-250,250,100,-0.5,0.5); // +/- 5 mm
1940 name<<"hist_zz_"<<s1<<"_"<<s2;
1941 title<<"Z Missalignment for sectors Z"<<s1<<" and "<<s2;
1942 histo = new TH2F(name.str().c_str(),title.str().c_str(),20,-250,250,100,-0.3,0.3); // +/- 3 mm
1945 name<<"hist_phiz_"<<s1<<"_"<<s2;
1946 title<<"Phi Missalignment for sectors Z"<<s1<<" and "<<s2;
1947 histo =new TH2F(name.str().c_str(),title.str().c_str(),20,-250,250,100,-0.01,0.01); // +/- 10 mrad
1950 name<<"hist_thetaz_"<<s1<<"_"<<s2;
1951 title<<"Theta Missalignment for sectors Z"<<s1<<" and "<<s2;
1952 histo =new TH2F(name.str().c_str(),title.str().c_str(),20,-250,250,100,-0.01,0.01); // +/- 10 mrad
1957 histo->SetDirectory(0);
1958 histoArray->AddAt(histo,GetIndex(s1,s2));
1962 TGraphErrors * AliTPCcalibAlign::MakeGraph(Int_t sec0, Int_t sec1, Int_t dsec,
1963 Int_t i0, Int_t i1, FitType type)
1969 //TObjArray *fitArray=0;
1970 Double_t xsec[1000];
1971 Double_t ysec[1000];
1973 for (Int_t isec = sec0; isec<=sec1; isec++){
1974 Int_t isec2 = (isec+dsec)%72;
1977 GetTransformation6(isec,isec2,mat);break;
1979 GetTransformation9(isec,isec2,mat);break;
1981 GetTransformation12(isec,isec2,mat);break;
1984 ysec[npoints]=mat(i0,i1);
1987 TGraphErrors *gr = new TGraphErrors(npoints,xsec,ysec,0,0);
1989 sprintf(name,"Mat[%d,%d] Type=%d",i0,i1,type);
1994 void AliTPCcalibAlign::MakeTree(const char *fname, Int_t minPoints){
1996 // make tree with alignment cosntant -
1997 // For QA visualization
2000 TFile fcalib("CalibObjects.root");
2001 TObjArray * array = (TObjArray*)fcalib.Get("TPCCalib");
2002 AliTPCcalibAlign * align = ( AliTPCcalibAlign *)array->FindObject("alignTPC");
2003 align->EvalFitters();
2004 align->MakeTree("alignTree.root");
2005 TFile falignTree("alignTree.root");
2006 TTree * treeAlign = (TTree*)falignTree.Get("Align");
2008 TTreeSRedirector cstream(fname);
2009 for (Int_t s1=0;s1<72;++s1)
2010 for (Int_t s2=0;s2<72;++s2){
2015 TVectorD param6Diff; // align parameters diff
2016 TVectorD param6s1(6); // align parameters sector1
2017 TVectorD param6s2(6); // align parameters sector2
2022 TMatrixD * kpar = fSectorParamA;
2023 TMatrixD * kcov = fSectorCovarA;
2025 kpar = fSectorParamC;
2026 kcov = fSectorCovarC;
2028 for (Int_t ipar=0;ipar<6;ipar++){
2029 Int_t isec1 = s1%18;
2030 Int_t isec2 = s2%18;
2031 if (s1>35) isec1+=18;
2032 if (s2>35) isec2+=18;
2033 param6s1(ipar)=(*kpar)(6*isec1+ipar,0);
2034 param6s2(ipar)=(*kpar)(6*isec2+ipar,0);
2038 Double_t dy=0, dz=0, dphi=0,dtheta=0;
2039 Double_t sy=0, sz=0, sphi=0,stheta=0;
2040 Double_t ny=0, nz=0, nphi=0,ntheta=0;
2041 Double_t chi2v12=0, chi2v9=0, chi2v6=0;
2043 // TLinearFitter * fitter = 0;
2044 if (fPoints[GetIndex(s1,s2)]>minPoints){
2048 // fitter = GetFitter12(s1,s2);
2049 // npoints = fitter->GetNpoints();
2050 // chi2v12 = TMath::Sqrt(fitter->GetChisquare()/npoints);
2053 // fitter = GetFitter9(s1,s2);
2054 // npoints = fitter->GetNpoints();
2055 // chi2v9 = TMath::Sqrt(fitter->GetChisquare()/npoints);
2057 // fitter = GetFitter6(s1,s2);
2058 // npoints = fitter->GetNpoints();
2059 // chi2v6 = TMath::Sqrt(fitter->GetChisquare()/npoints);
2060 // fitter->GetParameters(param6Diff);
2062 // GetTransformation6(s1,s2,m6);
2063 // GetTransformation9(s1,s2,m9);
2064 // GetTransformation12(s1,s2,m12);
2066 // fitter = GetFitter6(s1,s2);
2067 // //fitter->FixParameter(3,0);
2068 // //fitter->Eval();
2069 // GetTransformation6(s1,s2,m6FX);
2072 his = GetHisto(kY,s1,s2);
2073 if (his) { dy = his->GetMean(); sy = his->GetRMS(); ny = his->GetEntries();}
2074 his = GetHisto(kZ,s1,s2);
2075 if (his) { dz = his->GetMean(); sz = his->GetRMS(); nz = his->GetEntries();}
2076 his = GetHisto(kPhi,s1,s2);
2077 if (his) { dphi = his->GetMean(); sphi = his->GetRMS(); nphi = his->GetEntries();}
2078 his = GetHisto(kTheta,s1,s2);
2079 if (his) { dtheta = his->GetMean(); stheta = his->GetRMS(); ntheta = his->GetEntries();}
2083 AliMagF* magF= (AliMagF*)TGeoGlobalMagField::Instance()->GetField();
2084 if (!magF) AliError("Magneticd field - not initialized");
2085 Double_t bz = magF->SolenoidField()/10.; //field in T
2088 "run="<<fRun<< // run
2090 "s1="<<s1<< // reference sector
2091 "s2="<<s2<< // sector to align
2092 "m6FX.="<<&m6FX<< // tranformation matrix
2093 "m6.="<<&m6<< // tranformation matrix
2096 "chi2v12="<<chi2v12<<
2100 "p6.="<<¶m6Diff<<
2101 "p6s1.="<<¶m6s1<<
2102 "p6s2.="<<¶m6s2<<
2103 // histograms mean RMS and entries
2122 //_____________________________________________________________________
2123 Long64_t AliTPCcalibAlign::Merge(TCollection* const list) {
2127 if (GetDebugLevel()>0) Info("AliTPCcalibAlign","Merge");
2130 if (list->IsEmpty())
2133 TIterator* iter = list->MakeIterator();
2138 TString str1(GetName());
2139 while((obj = iter->Next()) != 0)
2141 AliTPCcalibAlign* entry = dynamic_cast<AliTPCcalibAlign*>(obj);
2142 if (entry == 0) continue;
2143 if (str1.CompareTo(entry->GetName())!=0) continue;
2151 void AliTPCcalibAlign::Add(AliTPCcalibAlign * align){
2153 // Add entry - used for merging of compoents
2155 for (Int_t i=0; i<72;i++){
2156 for (Int_t j=0; j<72;j++){
2157 if (align->fPoints[GetIndex(i,j)]<1) continue;
2158 fPoints[GetIndex(i,j)]+=align->fPoints[GetIndex(i,j)];
2162 for (Int_t itype=0; itype<10; itype++){
2163 TH1 * his0=0, *his1=0;
2164 his0 = GetHisto((HistoType)itype,i,j);
2165 his1 = align->GetHisto((HistoType)itype,i,j);
2167 if (his0) his0->Add(his1);
2169 his0 = GetHisto((HistoType)itype,i,j,kTRUE);
2176 TLinearFitter *f0=0;
2177 TLinearFitter *f1=0;
2178 for (Int_t i=0; i<72;i++){
2179 for (Int_t j=0; j<72;j++){
2180 if (align->fPoints[GetIndex(i,j)]<1) continue;
2184 f0 = GetFitter12(i,j);
2185 f1 = align->GetFitter12(i,j);
2187 if (f0) f0->Add(f1);
2189 fFitterArray12.AddAt(f1->Clone(),GetIndex(i,j));
2194 f0 = GetFitter9(i,j);
2195 f1 = align->GetFitter9(i,j);
2197 if (f0) f0->Add(f1);
2199 fFitterArray9.AddAt(f1->Clone(),GetIndex(i,j));
2202 f0 = GetFitter6(i,j);
2203 f1 = align->GetFitter6(i,j);
2205 if (f0) f0->Add(f1);
2207 fFitterArray6.AddAt(f1->Clone(),GetIndex(i,j));
2213 // Add Kalman filter
2215 for (Int_t i=0;i<36;i++){
2216 TMatrixD *par0 = (TMatrixD*)fArraySectorIntParam.At(i);
2219 par0 = (TMatrixD*)fArraySectorIntParam.At(i);
2221 TMatrixD *par1 = (TMatrixD*)align->fArraySectorIntParam.At(i);
2222 if (!par1) continue;
2224 TMatrixD *cov0 = (TMatrixD*)fArraySectorIntCovar.At(i);
2225 TMatrixD *cov1 = (TMatrixD*)align->fArraySectorIntCovar.At(i);
2226 UpdateSectorKalman(*par0,*cov0,*par1,*cov1);
2228 if (!fSectorParamA){
2231 if (align->fSectorParamA){
2232 UpdateKalman(*fSectorParamA,*fSectorCovarA,*align->fSectorParamA,*align->fSectorCovarA);
2233 UpdateKalman(*fSectorParamC,*fSectorCovarC,*align->fSectorParamC,*align->fSectorCovarC);
2235 if (!fClusterDelta[0]) MakeResidualHistos();
2237 for (Int_t i=0; i<2; i++){
2238 if (align->fClusterDelta[i]){
2239 fClusterDelta[i]->Add(align->fClusterDelta[i]);
2240 // align->fClusterDelta[i]->GetAxis(0)->SetRangeUser(-0.87,0.87);
2241 // align->fClusterDelta[i]->GetAxis(3)->SetRangeUser(-0.87,0.87);
2242 // fClusterDelta[i]->GetAxis(0)->SetRangeUser(-0.87,0.87);
2243 // fClusterDelta[i]->GetAxis(3)->SetRangeUser(-0.87,0.87);
2244 // Int_t idim[4]={0,1,2,3};
2245 // THnSparse *htemp=align->fClusterDelta[i]->Projection(4,idim);
2246 // THnSparse *htemp1=fClusterDelta[i]->Projection(4,idim);
2247 // htemp1->Add(htemp);
2248 // delete fClusterDelta[i];
2249 // fClusterDelta[i]=htemp1;
2254 for (Int_t i=0; i<4; i++){
2255 if (!fTrackletDelta[i] && align->fTrackletDelta[i]) {
2256 fTrackletDelta[i]= (THnSparse*)(align->fTrackletDelta[i]->Clone());
2259 if (align->fTrackletDelta[i]) {
2260 fTrackletDelta[i]->Add(align->fTrackletDelta[i]);
2262 // align->fTrackletDelta[i]->GetAxis(3)->SetRangeUser(-0.36,0.36);
2263 // align->fTrackletDelta[i]->GetAxis(4)->SetRangeUser(-0.87,0.87);
2264 // fTrackletDelta[i]->GetAxis(3)->SetRangeUser(-0.36,0.36);
2265 // fTrackletDelta[i]->GetAxis(4)->SetRangeUser(-0.87,0.87);
2267 // Int_t idim[9]={0,1,2,3,4,5,6,7,8};
2268 // THnSparse *htemp=align->fTrackletDelta[i]->Projection(9,idim);
2269 // THnSparse *htemp1=fTrackletDelta[i]->Projection(9,idim);
2270 // htemp1->Add(htemp);
2271 // delete fTrackletDelta[i];
2272 // fTrackletDelta[i]=htemp1;
2279 Double_t AliTPCcalibAlign::Correct(Int_t type, Int_t value, Int_t s1, Int_t s2, Double_t x1, Double_t y1, Double_t z1, Double_t dydx1,Double_t dzdx1){
2281 // GetTransformed value
2284 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
2285 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
2286 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
2287 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
2288 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
2291 const TMatrixD * mat = GetTransformation(s1,s2,type);
2293 if (value==0) return x1;
2294 if (value==1) return y1;
2295 if (value==2) return z1;
2296 if (value==3) return dydx1;
2297 if (value==4) return dzdx1;
2299 if (value==5) return dydx1;
2300 if (value==6) return dzdx1;
2306 valT = (*mat)(0,0)*x1+(*mat)(0,1)*y1+(*mat)(0,2)*z1+(*mat)(0,3);
2310 valT = (*mat)(1,0)*x1+(*mat)(1,1)*y1+(*mat)(1,2)*z1+(*mat)(1,3);
2313 valT = (*mat)(2,0)*x1+(*mat)(2,1)*y1+(*mat)(2,2)*z1+(*mat)(2,3);
2316 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
2317 valT = (*mat)(1,0) +(*mat)(1,1)*dydx1 +(*mat)(1,2)*dzdx1;
2318 valT/= ((*mat)(0,0) +(*mat)(0,1)*dydx1 +(*mat)(0,2)*dzdx1);
2322 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
2323 valT = (*mat)(2,0) +(*mat)(2,1)*dydx1 +(*mat)(2,2)*dzdx1;
2324 valT/= ((*mat)(0,0) +(*mat)(0,1)*dydx1 +(*mat)(0,2)*dzdx1);
2328 // onlys shift in angle
2329 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
2330 valT = (*mat)(1,0) +(*mat)(1,1)*dydx1;
2334 // only shift in angle
2335 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
2336 valT = (*mat)(2,0) +(*mat)(2,1)*dydx1;
2343 void AliTPCcalibAlign::Constrain1Pt(AliExternalTrackParam &track1, const AliExternalTrackParam &track2, Bool_t noField){
2345 // Update track parameters t1
2347 TMatrixD vecXk(5,1); // X vector
2348 TMatrixD covXk(5,5); // X covariance
2349 TMatrixD matHk(1,5); // vector to mesurement
2350 TMatrixD measR(1,1); // measurement error
2351 //TMatrixD matQk(5,5); // prediction noise vector
2352 TMatrixD vecZk(1,1); // measurement
2354 TMatrixD vecYk(1,1); // Innovation or measurement residual
2355 TMatrixD matHkT(5,1);
2356 TMatrixD matSk(1,1); // Innovation (or residual) covariance
2357 TMatrixD matKk(5,1); // Optimal Kalman gain
2358 TMatrixD mat1(5,5); // update covariance matrix
2359 TMatrixD covXk2(5,5); //
2360 TMatrixD covOut(5,5);
2362 Double_t *param1=(Double_t*) track1.GetParameter();
2363 Double_t *covar1=(Double_t*) track1.GetCovariance();
2366 // copy data to the matrix
2367 for (Int_t ipar=0; ipar<5; ipar++){
2368 vecXk(ipar,0) = param1[ipar];
2369 for (Int_t jpar=0; jpar<5; jpar++){
2370 covXk(ipar,jpar) = covar1[track1.GetIndex(ipar, jpar)];
2376 vecZk(0,0) = track2.GetParameter()[4]; // 1/pt measurement from track 2
2377 measR(0,0) = track2.GetCovariance()[14]; // 1/pt measurement error
2379 measR(0,0)*=0.000000001;
2383 matHk(0,0)=0; matHk(0,1)= 0; matHk(0,2)= 0;
2384 matHk(0,3)= 0; matHk(0,4)= 1; // vector to measurement
2388 vecYk = vecZk-matHk*vecXk; // Innovation or measurement residual
2389 matHkT=matHk.T(); matHk.T();
2390 matSk = (matHk*(covXk*matHkT))+measR; // Innovation (or residual) covariance
2392 matKk = (covXk*matHkT)*matSk; // Optimal Kalman gain
2393 vecXk += matKk*vecYk; // updated vector
2394 mat1(0,0)=1; mat1(1,1)=1; mat1(2,2)=1; mat1(3,3)=1; mat1(4,4)=1;
2395 covXk2 = (mat1-(matKk*matHk));
2396 covOut = covXk2*covXk;
2400 // copy from matrix to parameters
2409 for (Int_t ipar=0; ipar<5; ipar++){
2410 param1[ipar]= vecXk(ipar,0) ;
2411 for (Int_t jpar=0; jpar<5; jpar++){
2412 covar1[track1.GetIndex(ipar, jpar)]=covOut(ipar,jpar);
2418 void AliTPCcalibAlign::GlobalAlign6(Int_t minPoints, Float_t sysError, Int_t niter){
2420 // Global Align -combine the partial alignment of pair of sectors
2421 // minPoints - minimal number of points - don't use sector alignment wit smaller number
2422 // sysError - error added to the alignemnt error
2424 AliTPCcalibAlign * align = this;
2425 TMatrixD * arrayAlign[72];
2426 TMatrixD * arrayAlignDiff[72];
2428 for (Int_t i=0;i<72; i++) {
2429 TMatrixD * mat = new TMatrixD(4,4);
2432 arrayAlignDiff[i]=(TMatrixD*)(mat->Clone());
2435 TTreeSRedirector *cstream = new TTreeSRedirector("galign6.root");
2436 for (Int_t iter=0; iter<niter;iter++){
2437 printf("Iter=\t%d\n",iter);
2438 for (Int_t is0=0;is0<72; is0++) {
2440 //TMatrixD *mati0 = arrayAlign[is0];
2441 TMatrixD matDiff(4,4);
2443 for (Int_t is1=0;is1<72; is1++) {
2444 Bool_t invers=kFALSE;
2448 const TMatrixD *mat = align->GetTransformation(is0,is1,0);
2450 npoints = align->GetFitter6(is0,is1)->GetNpoints();
2451 if (npoints>minPoints){
2452 align->GetFitter6(is0,is1)->GetCovarianceMatrix(covar);
2453 align->GetFitter6(is0,is1)->GetErrors(errors);
2458 mat = align->GetTransformation(is1,is0,0);
2460 npoints = align->GetFitter6(is1,is0)->GetNpoints();
2461 if (npoints>minPoints){
2462 align->GetFitter6(is1,is0)->GetCovarianceMatrix(covar);
2463 align->GetFitter6(is1,is0)->GetErrors(errors);
2468 if (npoints<minPoints) continue;
2471 if (is1/36>is0/36) weight*=2./3.; //IROC-OROC
2472 if (is1/36<is0/36) weight*=1./3.; //OROC-IROC
2473 if (is1/36==is0/36) weight*=1/3.; //OROC-OROC
2474 if (is1%36!=is0%36) weight*=1/2.; //Not up-down
2475 weight/=(errors[4]*errors[4]+sysError*sysError); // wieghting with error in Y
2478 TMatrixD matT = *mat;
2479 if (invers) matT.Invert();
2480 TMatrixD diffMat= (*(arrayAlign[is1]))*matT;
2481 diffMat-=(*arrayAlign[is0]);
2482 matDiff+=weight*diffMat;
2485 (*cstream)<<"LAlign"<<
2489 "npoints="<<npoints<<
2490 "m60.="<<arrayAlign[is0]<<
2491 "m61.="<<arrayAlign[is1]<<
2493 "diff.="<<&diffMat<<
2504 (*arrayAlignDiff[is0]) = matDiff;
2507 for (Int_t is0=0;is0<72; is0++) {
2508 if (is0<36) (*arrayAlign[is0]) += 0.4*(*arrayAlignDiff[is0]);
2509 if (is0>=36) (*arrayAlign[is0]) += 0.2*(*arrayAlignDiff[is0]);
2511 (*cstream)<<"GAlign"<<
2514 "m6.="<<arrayAlign[is0]<<
2520 for (Int_t isec=0;isec<72;isec++){
2521 fCombinedMatrixArray6.AddAt(arrayAlign[isec],isec);
2522 delete arrayAlignDiff[isec];
2527 Int_t AliTPCcalibAlign::RefitLinear(const AliTPCseed * track, Int_t isec, Double_t *fitParam, Int_t refSector, TMatrixD &tparam, TMatrixD&tcovar, Double_t xRef, Bool_t both){
2529 // Refit tracklet linearly using clusters at given sector isec
2530 // Clusters are rotated to the reference frame of sector refSector
2532 // fit parameters and errors retruning in the fitParam
2534 // seed - acces to the original clusters
2535 // isec - sector to be refited
2547 // ref sector is the sector defining ref frame - rotation
2548 // return value - number of used clusters
2550 const Int_t kMinClusterF=15;
2551 const Int_t kdrow1 =10; // rows to skip at the end
2552 const Int_t kdrow0 =3; // rows to skip at beginning
2553 const Float_t kedgeyIn=2.5;
2554 const Float_t kedgeyOut=4.0;
2555 const Float_t kMaxDist=5; // max distance -in sigma
2556 const Float_t kMaxCorrY=0.05; // max correction
2558 Double_t dalpha = 0;
2559 if ((refSector%18)!=(isec%18)){
2560 dalpha = -((refSector%18)-(isec%18))*TMath::TwoPi()/18.;
2562 Double_t ca = TMath::Cos(dalpha);
2563 Double_t sa = TMath::Sin(dalpha);
2566 AliTPCPointCorrection * corr = AliTPCPointCorrection::Instance();
2568 // full track fit parameters
2570 static TLinearFitter fyf(2,"pol1"); // change to static - suggestion of calgrind - 30 % of time
2571 static TLinearFitter fzf(2,"pol1"); // relative to time of given class
2572 TVectorD pyf(2), peyf(2),pzf(2), pezf(2);
2573 TMatrixD covY(4,4),covZ(4,4);
2574 Double_t chi2FacY =1;
2575 Double_t chi2FacZ =1;
2580 Float_t erry=0.1; // initial cluster error estimate
2581 Float_t errz=0.1; // initial cluster error estimate
2582 for (Int_t iter=0; iter<2; iter++){
2585 for (Int_t irow=kdrow0;irow<159-kdrow1;irow++) {
2586 AliTPCclusterMI *c=track->GetClusterPointer(irow);
2589 if (c->GetDetector()%36!=(isec%36)) continue;
2590 if (!both && c->GetDetector()!=isec) continue;
2592 if (c->GetRow()<kdrow0) continue;
2593 //cluster position in reference frame
2594 Double_t lxR = ca*c->GetX()-sa*c->GetY();
2595 Double_t lyR = +sa*c->GetX()+ca*c->GetY();
2596 Double_t lzR = c->GetZ();
2598 Double_t dx = lxR -xRef; // distance to reference X
2599 Double_t x[2]={dx, dx*dx};
2601 Double_t yfitR = pyf[0]+pyf[1]*dx; // fit value Y in ref frame
2602 Double_t zfitR = pzf[0]+pzf[1]*dx; // fit value Z in ref frame
2604 Double_t yfit = -sa*lxR + ca*yfitR; // fit value Y in local frame
2606 if (iter==0 &&c->GetType()<0) continue;
2608 if (TMath::Abs(lyR-yfitR)>kMaxDist*erry) continue;
2609 if (TMath::Abs(lzR-zfitR)>kMaxDist*errz) continue;
2610 Double_t dedge = c->GetX()*TMath::Tan(TMath::Pi()/18.)-TMath::Abs(yfit);
2611 if (isec<36 && dedge<kedgeyIn) continue;
2612 if (isec>35 && dedge<kedgeyOut) continue;
2614 corr->RPhiCOGCorrection(isec,c->GetRow(), c->GetPad(),
2615 c->GetY(),yfit, c->GetZ(), pyf[1], c->GetMax(),2.5);
2617 corr->RPhiCOGCorrection(isec,c->GetRow(), c->GetPad(),
2618 c->GetY(),c->GetY(), c->GetZ(), pyf[1], c->GetMax(),2.5);
2619 if (TMath::Abs((corrtrY+corrclY)*0.5)>kMaxCorrY) continue;
2620 if (TMath::Abs(corrtrY)>kMaxCorrY) continue;
2622 fyf.AddPoint(x,lyR,erry);
2623 fzf.AddPoint(x,lzR,errz);
2625 nf = fyf.GetNpoints();
2626 if (nf<kMinClusterF) return 0; // not enough points - skip
2628 fyf.GetParameters(pyf);
2629 fyf.GetErrors(peyf);
2631 fzf.GetParameters(pzf);
2632 fzf.GetErrors(pezf);
2633 chi2FacY = TMath::Sqrt(fyf.GetChisquare()/(fyf.GetNpoints()-2.));
2634 chi2FacZ = TMath::Sqrt(fzf.GetChisquare()/(fzf.GetNpoints()-2.));
2641 fyf.GetCovarianceMatrix(covY);
2642 fzf.GetCovarianceMatrix(covZ);
2643 for (Int_t i0=0;i0<2;i0++)
2644 for (Int_t i1=0;i1<2;i1++){
2645 covY(i0,i1)*=chi2FacY*chi2FacY;
2646 covZ(i0,i1)*=chi2FacZ*chi2FacZ;
2651 fitParam[1] = pyf[0];
2652 fitParam[2] = pyf[1];
2653 fitParam[3] = pzf[0];
2654 fitParam[4] = pzf[1];
2657 fitParam[6] = peyf[0];
2658 fitParam[7] = peyf[1];
2659 fitParam[8] = pezf[0];
2660 fitParam[9] = pezf[1];
2663 tparam(0,0) = pyf[0];
2664 tparam(1,0) = pyf[1];
2665 tparam(2,0) = pzf[0];
2666 tparam(3,0) = pzf[1];
2668 tcovar(0,0) = covY(0,0);
2669 tcovar(1,1) = covY(1,1);
2670 tcovar(1,0) = covY(1,0);
2671 tcovar(0,1) = covY(0,1);
2672 tcovar(2,2) = covZ(0,0);
2673 tcovar(3,3) = covZ(1,1);
2674 tcovar(3,2) = covZ(1,0);
2675 tcovar(2,3) = covZ(0,1);
2679 void AliTPCcalibAlign::UpdateClusterDeltaField(const AliTPCseed * seed){
2681 // Update the cluster residula histograms for setup with field
2682 // Kalman track fitting is used
2683 // Only high momenta primary tracks used
2685 // 1. Apply selection
2686 // 2. Refit the track - in-out
2687 // 3. Refit the track - out-in
2688 // 4. Combine In and Out track - - fil cluster residuals
2690 const Double_t kPtCut=1.0; // pt
2691 const Double_t kSnpCut=0.2; // snp cut
2692 const Double_t kNclCut=120; //
2693 const Double_t kVertexCut=1;
2694 const Double_t kMaxDist=0.5; // max distance between tracks and cluster
2695 const Double_t kEdgeCut = 2.5;
2696 const Double_t kDelta2=0.2*0.2; // initial increase in covar matrix
2697 const Double_t kSigma=0.3; // error increase towards edges of TPC
2698 const Double_t kSkipBoundary=7.5; // skip track updates in the boundary IFC,OFC, IO
2700 if (!fCurrentTrack) return;
2701 if (!fCurrentFriendTrack) return;
2702 Float_t vertexXY=0,vertexZ=0;
2703 fCurrentTrack->GetImpactParameters(vertexXY,vertexZ);
2704 if (TMath::Abs(vertexXY)>kVertexCut) return;
2705 if (TMath::Abs(vertexZ)>kVertexCut) return;
2706 if (TMath::Abs(seed->Pt())<kPtCut) return;
2707 if (seed->GetNumberOfClusters()<kNclCut) return;
2708 if (TMath::Abs(seed->GetSnp())>kSnpCut) return;
2709 if (!fClusterDelta[0]) MakeResidualHistos();
2711 AliExternalTrackParam fitIn[160];
2712 AliExternalTrackParam fitOut[160];
2713 AliTPCROC * roc = AliTPCROC::Instance();
2714 Double_t xmiddle = ( roc->GetPadRowRadii(0,0)+roc->GetPadRowRadii(36,roc->GetNRows(36)-1))*0.5;
2715 Double_t xDiff = ( -roc->GetPadRowRadii(0,0)+roc->GetPadRowRadii(36,roc->GetNRows(36)-1))*0.5;
2716 Double_t xIFC = ( roc->GetPadRowRadii(0,0));
2717 Double_t xOFC = ( roc->GetPadRowRadii(36,roc->GetNRows(36)-1));
2722 AliExternalTrackParam trackIn = *(fCurrentTrack->GetInnerParam());
2723 AliExternalTrackParam trackOut = *(fCurrentFriendTrack->GetTPCOut());
2724 trackIn.ResetCovariance(10);
2725 trackOut.ResetCovariance(10);
2726 Double_t *covarIn = (Double_t*)trackIn.GetCovariance();
2727 Double_t *covarOut = (Double_t*)trackOut.GetCovariance();
2728 covarIn[0]+=kDelta2; covarIn[2]+=kDelta2;
2729 covarIn[5]+=kDelta2/(100.*100.); covarIn[9]=kDelta2/(100.*100.);
2730 covarIn[14]+=kDelta2/(5.*5.);
2731 covarOut[0]+=kDelta2; covarOut[2]+=kDelta2;
2732 covarOut[5]+=kDelta2/(100.*100.); covarOut[9]=kDelta2/(100.*100.);
2733 covarOut[14]+=kDelta2/(5.*5.);
2735 static Double_t mass = TDatabasePDG::Instance()->GetParticle("pi+")->Mass();
2738 for (Int_t irow=0; irow<160; irow++){
2739 AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
2741 if (cl->GetX()<80) continue;
2742 if (detector<0) detector=cl->GetDetector()%36;
2743 if (detector!=cl->GetDetector()%36) return; // cluster from different sectors
2747 if (ncl<kNclCut) return;
2748 Int_t nclIn=0,nclOut=0;
2751 // Refit out - store residual maps
2753 for (Int_t irow=0; irow<160; irow++){
2754 AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
2756 if (cl->GetX()<80) continue;
2757 if (detector<0) detector=cl->GetDetector()%36;
2758 Int_t sector = cl->GetDetector();
2759 Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackOut.GetAlpha();
2760 if (cl->GetDetector()%36!=detector) continue;
2761 if (TMath::Abs(dalpha)>0.01){
2762 if (!trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
2764 Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
2765 Double_t cov[3]={0.1,0.,0.1};
2766 Double_t dedge = cl->GetX()*TMath::Tan(TMath::Pi()/18.)-TMath::Abs(trackOut.GetY());
2767 Double_t dmiddle = TMath::Abs(cl->GetX()-xmiddle)/xDiff;
2770 cov[0]+=kSigma*dmiddle; // bigger error at boundary
2771 cov[0]+=kSigma*dmiddle; // bigger error at boundary
2772 cov[2]+=kSigma*dmiddle; // bigger error at boundary
2773 cov[2]+=kSigma*dmiddle; // bigger error at boundary
2774 cov[0]+=kSigma/dedge; // bigger error close to the boundary
2775 cov[2]+=kSigma/dedge; // bigger error close to the boundary
2778 if (!AliTracker::PropagateTrackToBxByBz(&trackOut, r[0],mass,1.,kFALSE)) continue;
2779 if (TMath::Abs(dedge)<kEdgeCut) continue;
2781 Bool_t doUpdate=kTRUE;
2782 if (TMath::Abs(cl->GetX()-xIFC)<kSkipBoundary) doUpdate=kFALSE;
2783 if (TMath::Abs(cl->GetX()-xOFC)<kSkipBoundary) doUpdate=kFALSE;
2784 if (TMath::Abs(cl->GetX()-fXIO)<kSkipBoundary) doUpdate=kFALSE;
2786 if (TMath::Abs(cl->GetY()-trackOut.GetY())<kMaxDist){
2788 if (doUpdate) trackOut.Update(&r[1],cov);
2790 fitOut[irow]=trackOut;
2794 // Refit In - store residual maps
2796 for (Int_t irow=159; irow>=0; irow--){
2797 AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
2799 if (cl->GetX()<80) continue;
2800 if (detector<0) detector=cl->GetDetector()%36;
2801 Int_t sector = cl->GetDetector();
2802 Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
2803 if (cl->GetDetector()%36!=detector) continue;
2804 if (TMath::Abs(dalpha)>0.01){
2805 if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
2807 Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
2808 Double_t cov[3]={0.1,0.,0.1};
2809 Double_t dedge = cl->GetX()*TMath::Tan(TMath::Pi()/18.)-TMath::Abs(trackIn.GetY());
2810 Double_t dmiddle = TMath::Abs(cl->GetX()-xmiddle)/xDiff;
2813 cov[0]+=kSigma*dmiddle; // bigger error at boundary
2814 cov[0]+=kSigma*dmiddle; // bigger error at boundary
2815 cov[2]+=kSigma*dmiddle; // bigger error at boundary
2816 cov[2]+=kSigma*dmiddle; // bigger error at boundary
2817 cov[0]+=kSigma/dedge; // bigger error close to the boundary
2818 cov[2]+=kSigma/dedge; // bigger error close to the boundary
2821 if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1.,kFALSE)) continue;
2822 if (TMath::Abs(dedge)<kEdgeCut) continue;
2823 Bool_t doUpdate=kTRUE;
2824 if (TMath::Abs(cl->GetX()-xIFC)<kSkipBoundary) doUpdate=kFALSE;
2825 if (TMath::Abs(cl->GetX()-xOFC)<kSkipBoundary) doUpdate=kFALSE;
2826 if (TMath::Abs(cl->GetX()-fXIO)<kSkipBoundary) doUpdate=kFALSE;
2827 if (TMath::Abs(cl->GetY()-trackIn.GetY())<kMaxDist){
2829 if (doUpdate) trackIn.Update(&r[1],cov);
2831 fitIn[irow]=trackIn;
2835 for (Int_t irow=159; irow>=0; irow--){
2837 // Update kalman - +- direction
2838 // Store cluster residuals
2839 AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
2841 if (cl->GetX()<80) continue;
2842 if (detector<0) detector=cl->GetDetector()%36;
2843 if (cl->GetDetector()%36!=detector) continue;
2844 AliExternalTrackParam trackSmooth = fitIn[irow];
2845 AliTrackerBase::UpdateTrack(trackSmooth, fitOut[irow]);
2847 Double_t resVector[5];
2848 trackSmooth.GetXYZ(xyz);
2849 resVector[1]= 9.*TMath::ATan2(xyz[1],xyz[0])/TMath::Pi();
2850 if (resVector[1]<0) resVector[1]+=18;
2851 resVector[2]= TMath::Sqrt(cl->GetX()*cl->GetX()+cl->GetY()*cl->GetY());
2852 resVector[3]= cl->GetZ()/resVector[2];
2854 resVector[0]= cl->GetY()-trackSmooth.GetY();
2855 fClusterDelta[0]->Fill(resVector);
2856 resVector[0]= cl->GetZ()-trackSmooth.GetZ();
2857 fClusterDelta[1]->Fill(resVector);
2863 void AliTPCcalibAlign::UpdateAlignSector(const AliTPCseed * track,Int_t isec){
2865 // Update Kalman filter of Alignment - only setup without filed
2866 // IROC - OROC quadrants
2868 if (TMath::Abs(AliTracker::GetBz())>0.5) return;
2869 if (!fClusterDelta[0]) MakeResidualHistos();
2870 // const Int_t kMinClusterF=40;
2871 const Int_t kMinClusterFit=10;
2872 const Int_t kMinClusterQ=10;
2874 const Int_t kdrow1Fit =5; // rows to skip from fit at the end
2875 const Int_t kdrow0Fit =10; // rows to skip from fit at beginning
2876 const Float_t kedgey=3.0;
2877 const Float_t kMaxDist=1;
2878 const Float_t kMaxCorrY=0.05;
2879 const Float_t kPRFWidth = 0.6; //cut 2 sigma of PRF
2880 isec = isec%36; // use the hardware numbering
2883 AliTPCPointCorrection * corr = AliTPCPointCorrection::Instance();
2885 // full track fit parameters
2887 static TLinearFitter fyf(2,"pol1"); // make it static - too much time for comiling of formula
2888 static TLinearFitter fzf(2,"pol1"); // calgrind recomendation
2889 TVectorD pyf(2), peyf(2),pzf(2), pezf(2);
2890 TVectorD pyfc(2),pzfc(2);
2893 // make full fit as reference
2895 for (Int_t iter=0; iter<2; iter++){
2898 for (Int_t irow=kdrow0Fit;irow<159-kdrow1Fit;irow++) {
2899 AliTPCclusterMI *c=track->GetClusterPointer(irow);
2901 if ((c->GetDetector()%36)!=isec) continue;
2902 if (c->GetRow()<kdrow0Fit) continue;
2903 Double_t dx = c->GetX()-fXmiddle;
2904 Double_t x[2]={dx, dx*dx};
2905 if (iter==0 &&c->GetType()<0) continue;
2907 Double_t yfit = pyf[0]+pyf[1]*dx;
2908 Double_t zfit = pzf[0]+pzf[1]*dx;
2909 Double_t dedge = c->GetX()*TMath::Tan(TMath::Pi()/18.)-TMath::Abs(yfit);
2910 if (TMath::Abs(c->GetY()-yfit)>kMaxDist) continue;
2911 if (TMath::Abs(c->GetZ()-zfit)>kMaxDist) continue;
2912 if (dedge<kedgey) continue;
2914 corr->RPhiCOGCorrection(c->GetDetector(),c->GetRow(), c->GetPad(),
2915 c->GetY(),yfit, c->GetZ(), pyf[1], c->GetMax(),2.5);
2916 if (TMath::Abs(corrtrY)>kMaxCorrY) continue;
2918 if (TMath::Abs(x[0])<10){
2919 fyf.AddPoint(x,c->GetY(),0.1); //use only middle rows+-10cm
2920 fzf.AddPoint(x,c->GetZ(),0.1);
2923 nf = fyf.GetNpoints();
2924 if (fyf.GetNpoints()<kMinClusterFit) return; // not enough points - skip
2925 if (fzf.GetNpoints()<kMinClusterFit) return; // not enough points - skip
2927 fyf.GetParameters(pyf);
2928 fyf.GetErrors(peyf);
2930 fzf.GetParameters(pzf);
2931 fzf.GetErrors(pezf);
2936 TVectorD vecX(160); // x vector
2937 TVectorD vecY(160); // residuals vector
2938 TVectorD vecZ(160); // residuals vector
2939 TVectorD vPosG(3); //vertex position
2940 TVectorD vPosL(3); // vertex position in the TPC local system
2941 TVectorF vImpact(2); //track impact parameter
2942 // Double_t tofSignal= fCurrentTrack->GetTOFsignal(); // tof signal
2943 TVectorF tpcPosG(3); // global position of track at the middle of fXmiddle
2944 Double_t lphi = TMath::ATan2(pyf[0],fXmiddle); // expected local phi angle - if vertex at 0
2945 Double_t gphi = 2.*TMath::Pi()*(isec%18+0.5)/18.+lphi; // expected global phi if vertex at 0
2946 Double_t ky = pyf[0]/fXmiddle;
2947 Double_t kyE =0, kzE=0; // ky and kz expected
2948 Double_t alpha =2.*TMath::Pi()*(isec%18+0.5)/18.;
2949 Double_t scos=TMath::Cos(alpha);
2950 Double_t ssin=TMath::Sin(alpha);
2951 const AliESDVertex* vertex = fCurrentEvent->GetPrimaryVertexTracks();
2952 vertex->GetXYZ(vPosG.GetMatrixArray());
2953 fCurrentTrack->GetImpactParameters(vImpact[0],vImpact[1]); // track impact parameters
2955 tpcPosG[0]= scos*fXmiddle-ssin*pyf[0];
2956 tpcPosG[1]=+ssin*fXmiddle+scos*pyf[0];
2958 vPosL[0]= scos*vPosG[0]+ssin*vPosG[1];
2959 vPosL[1]=-ssin*vPosG[0]+scos*vPosG[1];
2961 kyE = (pyf[0]-vPosL[1])/(fXmiddle-vPosL[0]);
2962 kzE = (pzf[0]-vPosL[2])/(fXmiddle-vPosL[0]);
2964 // get constrained parameters
2966 Double_t xvertex=vPosL[0]-fXmiddle;
2967 fyf.AddPoint(&xvertex,vPosL[1], 0.00001);
2968 fzf.AddPoint(&xvertex,vPosL[2], 2.);
2970 fyf.GetParameters(pyfc);
2972 fzf.GetParameters(pzfc);
2975 // Make Fitters and params for 5 fitters
2976 // 1-4 OROC quadrants
2979 static TLinearFitter *fittersY[5]={0,0,0,0,0}; // calgrind recomendation - fater to clear points
2980 static TLinearFitter *fittersZ[5]={0,0,0,0,0}; // than create the fitter
2981 if (fittersY[0]==0){
2982 for (Int_t i=0;i<5;i++) {
2983 fittersY[i] = new TLinearFitter(2,"pol1");
2984 fittersZ[i] = new TLinearFitter(2,"pol1");
2989 TVectorD paramsY[5];
2990 TVectorD errorsY[5];
2993 TVectorD paramsZ[5];
2994 TVectorD errorsZ[5];
2997 for (Int_t i=0;i<5;i++) {
2999 paramsY[i].ResizeTo(2);
3000 errorsY[i].ResizeTo(2);
3001 covY[i].ResizeTo(2,2);
3002 paramsZ[i].ResizeTo(2);
3003 errorsZ[i].ResizeTo(2);
3004 covZ[i].ResizeTo(2,2);
3005 fittersY[i]->ClearPoints();
3006 fittersZ[i]->ClearPoints();
3012 for (Int_t irow=0;irow<159;irow++) {
3013 AliTPCclusterMI *c=track->GetClusterPointer(irow);
3015 if ((c->GetDetector()%36)!=isec) continue;
3016 Double_t dx = c->GetX()-fXmiddle;
3017 Double_t x[2]={dx, dx*dx};
3018 Double_t yfit = pyf[0]+pyf[1]*dx;
3019 Double_t zfit = pzf[0]+pzf[1]*dx;
3020 Double_t yfitC = pyfc[0]+pyfc[1]*dx;
3021 Double_t zfitC = pzfc[0]+pzfc[1]*dx;
3022 Double_t dedge = c->GetX()*TMath::Tan(TMath::Pi()/18.)-TMath::Abs(yfit);
3023 if (TMath::Abs(c->GetY()-yfit)>kMaxDist) continue;
3024 if (TMath::Abs(c->GetZ()-zfit)>kMaxDist) continue;
3025 if (dedge<kedgey) continue;
3027 corr->RPhiCOGCorrection(c->GetDetector(),c->GetRow(), c->GetPad(),
3028 c->GetY(),yfit, c->GetZ(), pyf[1], c->GetMax(),2.5);
3029 if (TMath::Abs(corrtrY)>kMaxCorrY) continue;
3031 vecX[countRes]=c->GetX();
3032 vecY[countRes]=c->GetY()-yfit;
3033 vecZ[countRes]=c->GetZ()-zfit;
3036 // Fill THnSparse cluster residuals
3037 // use only primary candidates with ITS signal
3038 if (fCurrentTrack->IsOn(0x4)&&TMath::Abs(vImpact[0])<1&&TMath::Abs(vImpact[1])<1){
3039 Double_t resVector[5];
3040 resVector[1]= 9.*gphi/TMath::Pi();
3041 resVector[2]= TMath::Sqrt(c->GetX()*c->GetX()+c->GetY()*c->GetY());
3042 resVector[3]= c->GetZ()/resVector[2];
3045 resVector[0]= c->GetY()-yfitC;
3046 fClusterDelta[0]->Fill(resVector);
3047 resVector[0]= c->GetZ()-zfitC;
3048 fClusterDelta[1]->Fill(resVector);
3050 if (c->GetRow()<kdrow0Fit) continue;
3051 if (c->GetRow()>159-kdrow1Fit) continue;
3054 if (c->GetDetector()>35){
3055 if (c->GetX()<fXquadrant){
3056 if (yfit<-kPRFWidth) fittersY[1]->AddPoint(x,c->GetY(),0.1);
3057 if (yfit<-kPRFWidth) fittersZ[1]->AddPoint(x,c->GetZ(),0.1);
3058 if (yfit>kPRFWidth) fittersY[2]->AddPoint(x,c->GetY(),0.1);
3059 if (yfit>kPRFWidth) fittersZ[2]->AddPoint(x,c->GetZ(),0.1);
3061 if (c->GetX()>fXquadrant){
3062 if (yfit<-kPRFWidth) fittersY[3]->AddPoint(x,c->GetY(),0.1);
3063 if (yfit<-kPRFWidth) fittersZ[3]->AddPoint(x,c->GetZ(),0.1);
3064 if (yfit>kPRFWidth) fittersY[4]->AddPoint(x,c->GetY(),0.1);
3065 if (yfit>kPRFWidth) fittersZ[4]->AddPoint(x,c->GetZ(),0.1);
3068 if (c->GetDetector()<36){
3069 fittersY[0]->AddPoint(x,c->GetY(),0.1);
3070 fittersZ[0]->AddPoint(x,c->GetZ(),0.1);
3076 for (Int_t i=0;i<5;i++) {
3077 npoints[i] = fittersY[i]->GetNpoints();
3078 if (npoints[i]>=kMinClusterQ){
3080 fittersY[i]->Eval();
3081 Double_t chi2FacY = TMath::Sqrt(fittersY[i]->GetChisquare()/(fittersY[i]->GetNpoints()-2));
3083 fittersY[i]->GetParameters(paramsY[i]);
3084 fittersY[i]->GetErrors(errorsY[i]);
3085 fittersY[i]->GetCovarianceMatrix(covY[i]);
3086 // renormalize errors
3087 errorsY[i][0]*=chi2FacY;
3088 errorsY[i][1]*=chi2FacY;
3089 covY[i](0,0)*=chi2FacY*chi2FacY;
3090 covY[i](0,1)*=chi2FacY*chi2FacY;
3091 covY[i](1,0)*=chi2FacY*chi2FacY;
3092 covY[i](1,1)*=chi2FacY*chi2FacY;
3094 fittersZ[i]->Eval();
3095 Double_t chi2FacZ = TMath::Sqrt(fittersZ[i]->GetChisquare()/(fittersZ[i]->GetNpoints()-2));
3097 fittersZ[i]->GetParameters(paramsZ[i]);
3098 fittersZ[i]->GetErrors(errorsZ[i]);
3099 fittersZ[i]->GetCovarianceMatrix(covZ[i]);
3100 // renormalize errors
3101 errorsZ[i][0]*=chi2FacZ;
3102 errorsZ[i][1]*=chi2FacZ;
3103 covZ[i](0,0)*=chi2FacZ*chi2FacZ;
3104 covZ[i](0,1)*=chi2FacZ*chi2FacZ;
3105 covZ[i](1,0)*=chi2FacZ*chi2FacZ;
3106 covZ[i](1,1)*=chi2FacZ*chi2FacZ;
3110 // void UpdateSectorKalman
3112 for (Int_t i0=0;i0<5;i0++){
3113 for (Int_t i1=i0+1;i1<5;i1++){
3114 if(npoints[i0]<kMinClusterQ) continue;
3115 if(npoints[i1]<kMinClusterQ) continue;
3116 TMatrixD v0(4,1),v1(4,1); // measurement
3117 TMatrixD cov0(4,4),cov1(4,4); // covariance
3119 v0(0,0)= paramsY[i0][0]; v1(0,0)= paramsY[i1][0];
3120 v0(1,0)= paramsY[i0][1]; v1(1,0)= paramsY[i1][1];
3121 v0(2,0)= paramsZ[i0][0]; v1(2,0)= paramsZ[i1][0];
3122 v0(3,0)= paramsZ[i0][1]; v1(3,0)= paramsZ[i1][1];
3124 cov0(0,0) = covY[i0](0,0);
3125 cov0(1,1) = covY[i0](1,1);
3126 cov0(1,0) = covY[i0](1,0);
3127 cov0(0,1) = covY[i0](0,1);
3128 cov0(2,2) = covZ[i0](0,0);
3129 cov0(3,3) = covZ[i0](1,1);
3130 cov0(3,2) = covZ[i0](1,0);
3131 cov0(2,3) = covZ[i0](0,1);
3133 cov1(0,0) = covY[i1](0,0);
3134 cov1(1,1) = covY[i1](1,1);
3135 cov1(1,0) = covY[i1](1,0);
3136 cov1(0,1) = covY[i1](0,1);
3137 cov1(2,2) = covZ[i1](0,0);
3138 cov1(3,3) = covZ[i1](1,1);
3139 cov1(3,2) = covZ[i1](1,0);
3140 cov1(2,3) = covZ[i1](0,1);
3144 if (TMath::Abs(pyf[1])<0.8){ //angular cut
3145 UpdateSectorKalman(isec, i0,i1, &v0,&cov0,&v1,&cov1);
3151 // Dump debug information
3153 if (fStreamLevel>0){
3154 // get vertex position
3156 TTreeSRedirector *cstream = GetDebugStreamer();
3160 for (Int_t i0=0;i0<5;i0++){
3161 for (Int_t i1=i0;i1<5;i1++){
3162 if (i0==i1) continue;
3163 if(npoints[i0]<kMinClusterQ) continue;
3164 if(npoints[i1]<kMinClusterQ) continue;
3165 (*cstream)<<"sectorAlign"<<
3166 "run="<<fRun<< // run number
3167 "event="<<fEvent<< // event number
3168 "time="<<fTime<< // time stamp of event
3169 "trigger="<<fTrigger<< // trigger
3170 "triggerClass="<<&fTriggerClass<< // trigger
3171 "mag="<<fMagF<< // magnetic field
3172 "isec="<<isec<< // current sector
3174 "xref="<<fXmiddle<< // reference X
3175 "vPosG.="<<&vPosG<< // vertex position in global system
3176 "vPosL.="<<&vPosL<< // vertex position in local system
3177 "vImpact.="<<&vImpact<< // track impact parameter
3178 //"tofSignal="<<tofSignal<< // tof signal
3179 "tpcPosG.="<<&tpcPosG<< // global position of track at the middle of fXmiddle
3180 "lphi="<<lphi<< // expected local phi angle - if vertex at 0
3181 "gphi="<<gphi<< // expected global phi if vertex at 0
3183 "kyE="<<kyE<< // expect ky - assiming pirmary track
3184 "kzE="<<kzE<< // expected kz - assuming primary tracks
3185 "salpha="<<alpha<< // sector alpha
3186 "scos="<<scos<< // tracking cosinus
3187 "ssin="<<ssin<< // tracking sinus
3191 "nf="<<nf<< // total number of points
3192 "pyf.="<<&pyf<< // full OROC fit y
3193 "pzf.="<<&pzf<< // full OROC fit z
3194 "vX.="<<&vecX<< // x cluster
3195 "vY.="<<&vecY<< // y residual cluster
3196 "vZ.="<<&vecZ<< // z residual cluster
3197 // quadrant and IROC fit
3198 "i0="<<i0<< // quadrant number
3200 "n0="<<npoints[i0]<< // number of points
3201 "n1="<<npoints[i1]<<
3203 "py0.="<<¶msY[i0]<< // parameters
3204 "py1.="<<¶msY[i1]<<
3205 "ey0.="<<&errorsY[i0]<< // errors
3206 "ey1.="<<&errorsY[i1]<<
3207 "chiy0="<<chi2CY[i0]<< // chi2s
3208 "chiy1="<<chi2CY[i1]<<
3210 "pz0.="<<¶msZ[i0]<< // parameters
3211 "pz1.="<<¶msZ[i1]<<
3212 "ez0.="<<&errorsZ[i0]<< // errors
3213 "ez1.="<<&errorsZ[i1]<<
3214 "chiz0="<<chi2CZ[i0]<< // chi2s
3215 "chiz1="<<chi2CZ[i1]<<
3223 void AliTPCcalibAlign::UpdateSectorKalman(Int_t sector, Int_t quadrant0, Int_t quadrant1, TMatrixD *const p0, TMatrixD *const c0, TMatrixD *const p1, TMatrixD *const c1 ){
3226 // tracks are refitted at sector middle
3228 if (fArraySectorIntParam.At(0)==NULL) MakeSectorKalman();
3231 static TMatrixD matHk(4,30); // vector to mesurement
3232 static TMatrixD measR(4,4); // measurement error
3233 // static TMatrixD matQk(2,2); // prediction noise vector
3234 static TMatrixD vecZk(4,1); // measurement
3236 static TMatrixD vecYk(4,1); // Innovation or measurement residual
3237 static TMatrixD matHkT(30,4); // helper matrix Hk transpose
3238 static TMatrixD matSk(4,4); // Innovation (or residual) covariance
3239 static TMatrixD matKk(30,4); // Optimal Kalman gain
3240 static TMatrixD mat1(30,30); // update covariance matrix
3241 static TMatrixD covXk2(30,30); // helper matrix
3243 TMatrixD *vOrig = (TMatrixD*)(fArraySectorIntParam.At(sector));
3244 TMatrixD *cOrig = (TMatrixD*)(fArraySectorIntCovar.At(sector));
3246 TMatrixD vecXk(*vOrig); // X vector
3247 TMatrixD covXk(*cOrig); // X covariance
3251 for (Int_t i=0;i<30;i++)
3252 for (Int_t j=0;j<30;j++){
3254 if (i==j) mat1(i,j)=1;
3258 // matHk - vector to measurement
3260 for (Int_t i=0;i<4;i++)
3261 for (Int_t j=0;j<30;j++){
3271 matHk(0,6*quadrant1+4) = 1.; // delta y
3272 matHk(1,6*quadrant1+0) = 1.; // delta ky
3273 matHk(2,6*quadrant1+5) = 1.; // delta z
3274 matHk(3,6*quadrant1+1) = 1.; // delta kz
3275 // bug fix 24.02 - aware of sign in dx
3276 matHk(0,6*quadrant1+3) = -(*p0)(1,0); // delta x to delta y - through ky
3277 matHk(2,6*quadrant1+3) = -(*p0)(3,0); // delta x to delta z - thorugh kz
3278 matHk(2,6*quadrant1+2) = ((*p0)(0,0)); // y to delta z - through psiz
3280 matHk(0,6*quadrant0+4) = -1.; // delta y
3281 matHk(1,6*quadrant0+0) = -1.; // delta ky
3282 matHk(2,6*quadrant0+5) = -1.; // delta z
3283 matHk(3,6*quadrant0+1) = -1.; // delta kz
3284 // bug fix 24.02 be aware of sign in dx
3285 matHk(0,6*quadrant0+3) = ((*p0)(1,0)); // delta x to delta y - through ky
3286 matHk(2,6*quadrant0+3) = ((*p0)(3,0)); // delta x to delta z - thorugh kz
3287 matHk(2,6*quadrant0+2) = -((*p0)(0,0)); // y to delta z - through psiz
3292 vecZk =(*p1)-(*p0); // measurement
3293 measR =(*c1)+(*c0); // error of measurement
3294 vecYk = vecZk-matHk*vecXk; // Innovation or measurement residual
3297 matHkT=matHk.T(); matHk.T();
3298 matSk = (matHk*(covXk*matHkT))+measR; // Innovation (or residual) covariance
3300 matKk = (covXk*matHkT)*matSk; // Optimal Kalman gain
3301 vecXk += matKk*vecYk; // updated vector
3302 covXk2= (mat1-(matKk*matHk));
3303 covXk = covXk2*covXk;
3310 void AliTPCcalibAlign::MakeSectorKalman(){
3312 // Make a initial Kalman paramaters for IROC - Quadrants alignment
3314 TMatrixD param(5*6,1);
3315 TMatrixD covar(5*6,5*6);
3317 // Set inital parameters
3319 for (Int_t ip=0;ip<5*6;ip++) param(ip,0)=0; // mean alignment to 0
3321 for (Int_t iq=0;iq<5;iq++){
3322 // Initial uncertinty
3323 covar(iq*6+0,iq*6+0) = 0.002*0.002; // 2 mrad
3324 covar(iq*6+1,iq*6+1) = 0.002*0.002; // 2 mrad rotation
3325 covar(iq*6+2,iq*6+2) = 0.002*0.002; // 2 mrad
3327 covar(iq*6+3,iq*6+3) = 0.02*0.02; // 0.2 mm
3328 covar(iq*6+4,iq*6+4) = 0.02*0.02; // 0.2 mm translation
3329 covar(iq*6+5,iq*6+5) = 0.02*0.02; // 0.2 mm
3332 for (Int_t isec=0;isec<36;isec++){
3333 fArraySectorIntParam.AddAt(param.Clone(),isec);
3334 fArraySectorIntCovar.AddAt(covar.Clone(),isec);
3338 void AliTPCcalibAlign::UpdateSectorKalman(TMatrixD &par0, TMatrixD &cov0, TMatrixD &par1, TMatrixD &cov1){
3340 // Update kalman vector para0 with vector par1
3343 static TMatrixD matHk(30,30); // vector to mesurement
3344 static TMatrixD measR(30,30); // measurement error
3345 static TMatrixD vecZk(30,1); // measurement
3347 static TMatrixD vecYk(30,1); // Innovation or measurement residual
3348 static TMatrixD matHkT(30,30); // helper matrix Hk transpose
3349 static TMatrixD matSk(30,30); // Innovation (or residual) covariance
3350 static TMatrixD matKk(30,30); // Optimal Kalman gain
3351 static TMatrixD mat1(30,30); // update covariance matrix
3352 static TMatrixD covXk2(30,30); // helper matrix
3354 TMatrixD vecXk(par0); // X vector
3355 TMatrixD covXk(cov0); // X covariance
3360 for (Int_t i=0;i<30;i++)
3361 for (Int_t j=0;j<30;j++){
3363 if (i==j) mat1(i,j)=1;
3365 matHk = mat1; // unit matrix
3367 vecZk = par1; // measurement
3368 measR = cov1; // error of measurement
3369 vecYk = vecZk-matHk*vecXk; // Innovation or measurement residual
3371 matHkT=matHk.T(); matHk.T();
3372 matSk = (matHk*(covXk*matHkT))+measR; // Innovation (or residual) covariance
3374 matKk = (covXk*matHkT)*matSk; // Optimal Kalman gain
3376 vecXk += matKk*vecYk; // updated vector
3377 covXk2= (mat1-(matKk*matHk));
3378 covXk = covXk2*covXk;
3379 CheckCovariance(covXk);
3380 CheckCovariance(cov1);
3382 par0 = vecXk; // update measurement param
3383 cov0 = covXk; // update measurement covar
3386 Double_t AliTPCcalibAlign::GetCorrectionSector(Int_t coord, Int_t sector, Double_t lx, Double_t ly, Double_t /*lz*/){
3388 // Get position correction for given sector
3391 TMatrixD * param = (TMatrixD*)fArraySectorIntParam.At(sector%36);
3392 if (!param) return 0;
3395 if (lx<fXquadrant) {
3396 if (ly<0) quadrant=1;
3397 if (ly>0) quadrant=2;
3399 if (lx>fXquadrant) {
3400 if (ly<0) quadrant=3;
3401 if (ly>0) quadrant=4;
3404 Double_t a10 = (*param)(quadrant*6+0,0);
3405 Double_t a20 = (*param)(quadrant*6+1,0);
3406 Double_t a21 = (*param)(quadrant*6+2,0);
3407 Double_t dx = (*param)(quadrant*6+3,0);
3408 Double_t dy = (*param)(quadrant*6+4,0);
3409 Double_t dz = (*param)(quadrant*6+5,0);
3410 Double_t deltaX = lx-fXIO;
3411 if (coord==0) return dx;
3412 if (coord==1) return dy+deltaX*a10;
3413 if (coord==2) return dz+deltaX*a20+ly*a21;
3417 Double_t AliTPCcalibAlign::SGetCorrectionSector(Int_t coord, Int_t sector, Double_t lx, Double_t ly, Double_t lz){
3421 if (!Instance()) return 0;
3422 return Instance()->GetCorrectionSector(coord,sector,lx,ly,lz);
3425 void AliTPCcalibAlign::MakeKalman(){
3427 // Make a initial Kalman paramaters for sector Alignemnt
3429 fSectorParamA = new TMatrixD(6*36+6,1);
3430 fSectorParamC = new TMatrixD(6*36+6,1);
3431 fSectorCovarA = new TMatrixD(6*36+6,6*36+6);
3432 fSectorCovarC = new TMatrixD(6*36+6,6*36+6);
3434 // set starting parameters at 0
3436 for (Int_t isec=0;isec<37;isec++)
3437 for (Int_t ipar=0;ipar<6;ipar++){
3438 (*fSectorParamA)(isec*6+ipar,0) =0;
3439 (*fSectorParamC)(isec*6+ipar,0) =0;
3442 // set starting covariance
3444 for (Int_t isec=0;isec<36;isec++)
3445 for (Int_t ipar=0;ipar<6;ipar++){
3447 (*fSectorCovarA)(isec*6+ipar,isec*6+ipar) =0.002*0.002; // 2 mrad
3448 (*fSectorCovarC)(isec*6+ipar,isec*6+ipar) =0.002*0.002;
3451 (*fSectorCovarA)(isec*6+ipar,isec*6+ipar) =0.02*0.02; // 0.2 mm
3452 (*fSectorCovarC)(isec*6+ipar,isec*6+ipar) =0.02*0.02;
3455 (*fSectorCovarA)(36*6+0,36*6+0) =0.04; // common shift y up-up
3456 (*fSectorCovarA)(36*6+1,36*6+1) =0.04; // common shift y down-down
3457 (*fSectorCovarA)(36*6+2,36*6+2) =0.04; // common shift y up-down
3458 (*fSectorCovarA)(36*6+3,36*6+3) =0.004; // common shift phi up-up
3459 (*fSectorCovarA)(36*6+4,36*6+4) =0.004; // common shift phi down-down
3460 (*fSectorCovarA)(36*6+5,36*6+5) =0.004; // common shift phi up-down
3462 (*fSectorCovarC)(36*6+0,36*6+0) =0.04; // common shift y up-up
3463 (*fSectorCovarC)(36*6+1,36*6+1) =0.04; // common shift y down-down
3464 (*fSectorCovarC)(36*6+2,36*6+2) =0.04; // common shift y up-down
3465 (*fSectorCovarC)(36*6+3,36*6+3) =0.004; // common shift phi up-up
3466 (*fSectorCovarC)(36*6+4,36*6+4) =0.004; // common shift phi down-down
3467 (*fSectorCovarC)(36*6+5,36*6+5) =0.004; // common shift phi up-down
3470 void AliTPCcalibAlign::UpdateKalman(Int_t sector0, Int_t sector1, TMatrixD &p0, TMatrixD &c0, TMatrixD &p1, TMatrixD &c1){
3472 // Update Kalman parameters
3473 // Note numbering from 0..36 0..17 IROC 18..35 OROC
3476 if (fSectorParamA==NULL) MakeKalman();
3477 if (CheckCovariance(c0)>0) return;
3478 if (CheckCovariance(c1)>0) return;
3479 const Int_t nelem = 6*36+6;
3482 static TMatrixD matHk(4,nelem); // vector to mesurement
3483 static TMatrixD measR(4,4); // measurement error
3484 static TMatrixD vecZk(4,1); // measurement
3486 static TMatrixD vecYk(4,1); // Innovation or measurement residual
3487 static TMatrixD matHkT(nelem,4); // helper matrix Hk transpose
3488 static TMatrixD matSk(4,4); // Innovation (or residual) covariance
3489 static TMatrixD matKk(nelem,4); // Optimal Kalman gain
3490 static TMatrixD mat1(nelem,nelem); // update covariance matrix
3491 static TMatrixD covXk2(nelem,nelem); // helper matrix
3493 TMatrixD *vOrig = 0;
3494 TMatrixD *cOrig = 0;
3495 vOrig = (sector0%36>=18) ? fSectorParamA:fSectorParamC;
3496 cOrig = (sector0%36>=18) ? fSectorCovarA:fSectorCovarC;
3498 Int_t sec0= sector0%18;
3499 Int_t sec1= sector1%18;
3500 if (sector0>35) sec0+=18;
3501 if (sector1>35) sec1+=18;
3503 TMatrixD vecXk(*vOrig); // X vector
3504 TMatrixD covXk(*cOrig); // X covariance
3508 for (Int_t i=0;i<nelem;i++)
3509 for (Int_t j=0;j<nelem;j++){
3511 if (i==j) mat1(i,j)=1;
3515 // matHk - vector to measurement
3517 for (Int_t i=0;i<4;i++)
3518 for (Int_t j=0;j<nelem;j++){
3528 matHk(0,6*sec1+4) = 1.; // delta y
3529 matHk(1,6*sec1+0) = 1.; // delta ky
3530 matHk(2,6*sec1+5) = 1.; // delta z
3531 matHk(3,6*sec1+1) = 1.; // delta kz
3532 matHk(0,6*sec1+3) = p0(1,0); // delta x to delta y - through ky
3533 matHk(2,6*sec1+3) = p0(3,0); // delta x to delta z - thorugh kz
3534 matHk(2,6*sec1+2) = p0(0,0); // y to delta z - through psiz
3536 matHk(0,6*sec0+4) = -1.; // delta y
3537 matHk(1,6*sec0+0) = -1.; // delta ky
3538 matHk(2,6*sec0+5) = -1.; // delta z
3539 matHk(3,6*sec0+1) = -1.; // delta kz
3540 matHk(0,6*sec0+3) = -p0(1,0); // delta x to delta y - through ky
3541 matHk(2,6*sec0+3) = -p0(3,0); // delta x to delta z - thorugh kz
3542 matHk(2,6*sec0+2) = -p0(0,0); // y to delta z - through psiz
3544 Int_t dsec = (sector1%18)-(sector0%18);
3545 if (dsec<-2) dsec+=18;
3546 if (TMath::Abs(dsec)==1){
3548 // Left right systematic fit part
3551 if (dsec>0) dir= 1.;
3552 if (dsec<0) dir=-1.;
3553 if (sector0>35&§or1>35){
3554 matHk(0,36*6+0)=dir;
3555 matHk(1,36*6+3+0)=dir;
3557 if (sector0<36&§or1<36){
3558 matHk(0,36*6+1)=dir;
3559 matHk(1,36*6+3+1)=dir;
3561 if (sector0<36&§or1>35){
3562 matHk(0,36*6+2)=dir;
3563 matHk(1,36*6+3+2)=dir;
3565 if (sector0>35&§or1<36){
3566 matHk(0,36*6+2)=-dir;
3567 matHk(1,36*6+3+2)=-dir;
3572 vecZk =(p1)-(p0); // measurement
3573 measR =(c1)+(c0); // error of measurement
3574 vecYk = vecZk-matHk*vecXk; // Innovation or measurement residual
3577 matHkT=matHk.T(); matHk.T();
3578 matSk = (matHk*(covXk*matHkT))+measR; // Innovation (or residual) covariance
3580 matKk = (covXk*matHkT)*matSk; // Optimal Kalman gain
3581 vecXk += matKk*vecYk; // updated vector
3582 covXk2= (mat1-(matKk*matHk));
3583 covXk = covXk2*covXk;
3585 if (CheckCovariance(covXk)>0) return;
3594 void AliTPCcalibAlign::UpdateKalman(TMatrixD &par0, TMatrixD &cov0, TMatrixD &par1, TMatrixD &cov1){
3596 // Update kalman vector para0 with vector par1
3599 Int_t nelem = 6*36+6;
3600 static TMatrixD matHk(nelem,nelem); // vector to mesurement
3601 static TMatrixD measR(nelem,nelem); // measurement error
3602 static TMatrixD vecZk(nelem,1); // measurement
3604 static TMatrixD vecYk(nelem,1); // Innovation or measurement residual
3605 static TMatrixD matHkT(nelem,nelem); // helper matrix Hk transpose
3606 static TMatrixD matSk(nelem,nelem); // Innovation (or residual) covariance
3607 static TMatrixD matKk(nelem,nelem); // Optimal Kalman gain
3608 static TMatrixD mat1(nelem,nelem); // update covariance matrix
3609 static TMatrixD covXk2(nelem,nelem); // helper matrix
3611 TMatrixD vecXk(par0); // X vector
3612 TMatrixD covXk(cov0); // X covariance
3617 for (Int_t i=0;i<nelem;i++)
3618 for (Int_t j=0;j<nelem;j++){
3620 if (i==j) mat1(i,j)=1;
3622 matHk = mat1; // unit matrix
3624 vecZk = par1; // measurement
3625 measR = cov1; // error of measurement
3626 vecYk = vecZk-matHk*vecXk; // Innovation or measurement residual
3628 matHkT=matHk.T(); matHk.T();
3629 matSk = (matHk*(covXk*matHkT))+measR; // Innovation (or residual) covariance
3631 matKk = (covXk*matHkT)*matSk; // Optimal Kalman gain
3633 vecXk += matKk*vecYk; // updated vector
3634 covXk2= (mat1-(matKk*matHk));
3635 covXk = covXk2*covXk;
3637 CheckCovariance(cov0);
3638 CheckCovariance(cov1);
3639 CheckCovariance(covXk);
3641 par0 = vecXk; // update measurement param
3642 cov0 = covXk; // update measurement covar
3648 Int_t AliTPCcalibAlign::CheckCovariance(TMatrixD &covar){
3650 // check the consistency of covariance matrix
3652 Int_t ncols = covar.GetNcols();
3653 Int_t nrows= covar.GetNrows();
3654 const Float_t kEpsilon = 0.0001;
3660 printf("Error 0 - wrong matrix\n");
3664 // 1. Check that the non diagonal elements
3666 for (Int_t i0=0;i0<nrows;i0++)
3667 for (Int_t i1=i0+1;i1<ncols;i1++){
3668 Double_t r0 = covar(i0,i1)/TMath::Sqrt(covar(i0,i0)*covar(i1,i1));
3669 Double_t r1 = covar(i1,i0)/TMath::Sqrt(covar(i0,i0)*covar(i1,i1));
3670 if (TMath::Abs(r0-r1)>kEpsilon){
3671 printf("Error 1 - non symetric matrix %d\t%d\t%f",i0,i1,r1-r0);
3674 if (TMath::Abs(r0)>=1){
3675 printf("Error 2 - Wrong correlation %d\t%d\t%f\n",i0,i1,r0);
3678 if (TMath::Abs(r1)>=1){
3679 printf("Error 3 - Wrong correlation %d\t%d\t%f\n",i0,i1,r1);
3688 void AliTPCcalibAlign::MakeReportDy(TFile *output){
3690 // Draw histogram of dY
3692 Int_t kmicolors[10]={1,2,3,4,6,7,8,9,10,11};
3693 Int_t kmimarkers[10]={21,22,23,24,25,26,27,28,29,30};
3695 AliTPCcalibAlign *align = this;
3696 TVectorD vecOOP(36);
3697 TVectorD vecOOM(36);
3698 TVectorD vecOIP(36);
3699 TVectorD vecOIM(36);
3700 TVectorD vecOIS(36);
3701 TVectorD vecSec(36);
3702 TCanvas * cOROCdy = new TCanvas("OROC dy","OROC dy",900,600);
3703 cOROCdy->Divide(6,6);
3704 TCanvas * cIROCdy = new TCanvas("IROC dy","IROC dy",900,600);
3705 cIROCdy->Divide(6,6);
3706 TCanvas * cDy = new TCanvas("Dy","Dy",600,700);
3708 for (Int_t isec=0;isec<36;isec++){
3709 Bool_t isDraw=kFALSE;
3711 cOROCdy->cd(isec+1);
3712 Int_t secPlus = (isec%18==17)? isec-17:isec+1;
3713 Int_t secMinus= (isec%18==0) ? isec+17:isec-1;
3714 printf("%d\t%d\t%d\n",isec,secPlus,secMinus);
3715 TH1 * hisOOP= align->GetHisto(AliTPCcalibAlign::kY,isec+36,secPlus+36);
3716 TH1 * hisOOM= align->GetHisto(AliTPCcalibAlign::kY,isec+36,secMinus+36);
3717 TH1 * hisOIS= align->GetHisto(AliTPCcalibAlign::kY,isec+36,isec);
3720 hisOIS = (TH1F*)(hisOIS->Clone());
3721 hisOIS->SetDirectory(0);
3722 hisOIS->Scale(1./(hisOIS->GetMaximum()+1));
3723 hisOIS->SetLineColor(kmicolors[0]);
3726 vecOIS(isec)=10*hisOIS->GetMean();
3729 hisOOP = (TH1F*)(hisOOP->Clone());
3730 hisOOP->SetDirectory(0);
3731 hisOOP->Scale(1./(hisOOP->GetMaximum()+1));
3732 hisOOP->SetLineColor(kmicolors[1]);
3733 if (isDraw) hisOOP->Draw("same");
3734 if (!isDraw) {hisOOP->Draw(""); isDraw=kTRUE;}
3735 vecOOP(isec)=10*hisOOP->GetMean();
3738 hisOOM = (TH1F*)(hisOOM->Clone());
3739 hisOOM->SetDirectory(0);
3740 hisOOM->Scale(1/(hisOOM->GetMaximum()+1));
3741 hisOOM->SetLineColor(kmicolors[3]);
3742 if (isDraw) hisOOM->Draw("same");
3743 if (!isDraw) {hisOOM->Draw(""); isDraw=kTRUE;}
3744 vecOOM(isec)=10*hisOOM->GetMean();
3749 for (Int_t isec=0;isec<36;isec++){
3750 Bool_t isDraw=kFALSE;
3751 cIROCdy->cd(isec+1);
3752 Int_t secPlus = (isec%18==17)? isec-17:isec+1;
3753 Int_t secMinus= (isec%18==0) ? isec+17:isec-1;
3754 printf("%d\t%d\t%d\n",isec,secPlus,secMinus);
3755 TH1 * hisOIP= align->GetHisto(AliTPCcalibAlign::kY,isec+36,secPlus);
3756 TH1 * hisOIM= align->GetHisto(AliTPCcalibAlign::kY,isec+36,secMinus);
3757 TH1 * hisOIS= align->GetHisto(AliTPCcalibAlign::kY,isec+36,isec);
3759 hisOIS = (TH1F*)(hisOIS->Clone());
3760 hisOIS->SetDirectory(0);
3761 hisOIS->Scale(1./(hisOIS->GetMaximum()+1));
3762 hisOIS->SetLineColor(kmicolors[0]);
3765 vecOIS(isec)=10*hisOIS->GetMean();
3768 hisOIP = (TH1F*)(hisOIP->Clone());
3769 hisOIP->SetDirectory(0);
3770 hisOIP->Scale(1./(hisOIP->GetMaximum()+1));
3771 hisOIP->SetLineColor(kmicolors[1]);
3772 if (isDraw) hisOIP->Draw("same");
3773 if (!isDraw) {hisOIP->Draw(""); isDraw=kTRUE;}
3774 hisOIP->Draw("same");
3775 vecOIP(isec)=10*hisOIP->GetMean();
3778 hisOIM = (TH1F*)(hisOIM->Clone());
3779 hisOIM->SetDirectory(0);
3780 hisOIM->Scale(1/(hisOIM->GetMaximum()+1));
3781 hisOIM->SetLineColor(kmicolors[3]);
3782 if (isDraw) hisOIM->Draw("same");
3783 if (!isDraw) {hisOIM->Draw(""); isDraw=kTRUE;}
3784 vecOIM(isec)=10*hisOIM->GetMean();
3787 TGraph* grOIM = new TGraph(36,vecSec.GetMatrixArray(),vecOIM.GetMatrixArray());
3788 TGraph* grOIP = new TGraph(36,vecSec.GetMatrixArray(),vecOIP.GetMatrixArray());
3789 TGraph* grOIS = new TGraph(36,vecSec.GetMatrixArray(),vecOIS.GetMatrixArray());
3790 TGraph* grOOM = new TGraph(36,vecSec.GetMatrixArray(),vecOOM.GetMatrixArray());
3791 TGraph* grOOP = new TGraph(36,vecSec.GetMatrixArray(),vecOOP.GetMatrixArray());
3793 grOIS->SetMarkerStyle(kmimarkers[0]);
3794 grOIP->SetMarkerStyle(kmimarkers[1]);
3795 grOIM->SetMarkerStyle(kmimarkers[3]);
3796 grOOP->SetMarkerStyle(kmimarkers[1]);
3797 grOOM->SetMarkerStyle(kmimarkers[3]);
3798 grOIS->SetMarkerColor(kmicolors[0]);
3799 grOIP->SetMarkerColor(kmicolors[1]);
3800 grOIM->SetMarkerColor(kmicolors[3]);
3801 grOOP->SetMarkerColor(kmicolors[1]);
3802 grOOM->SetMarkerColor(kmicolors[3]);
3803 grOIS->SetLineColor(kmicolors[0]);
3804 grOIP->SetLineColor(kmicolors[1]);
3805 grOIM->SetLineColor(kmicolors[3]);
3806 grOOP->SetLineColor(kmicolors[1]);
3807 grOOM->SetLineColor(kmicolors[3]);
3808 grOIS->SetMaximum(1.5);
3809 grOIS->SetMinimum(-1.5);
3810 grOIS->GetXaxis()->SetTitle("Sector number");
3811 grOIS->GetYaxis()->SetTitle("#Delta_{y} (mm)");
3821 cOROCdy->SaveAs("picAlign/OROCOROCdy.eps");
3822 cOROCdy->SaveAs("picAlign/OROCOROCdy.gif");
3823 cOROCdy->SaveAs("picAlign/OROCOROCdy.root");
3825 cIROCdy->SaveAs("picAlign/OROCIROCdy.eps");
3826 cIROCdy->SaveAs("picAlign/OROCIROCdy.gif");
3827 cIROCdy->SaveAs("picAlign/OROCIROCdy.root");
3829 cDy->SaveAs("picAlign/Sectordy.eps");
3830 cDy->SaveAs("picAlign/Sectordy.gif");
3831 cDy->SaveAs("picAlign/Sectordy.root");
3834 cOROCdy->Write("OROCOROCDy");
3835 cIROCdy->Write("OROCIROCDy");
3836 cDy->Write("SectorDy");
3840 void AliTPCcalibAlign::MakeReportDyPhi(TFile */*output*/){
3844 Int_t kmicolors[10]={1,2,3,4,6,7,8,9,10,11};
3845 Int_t kmimarkers[10]={21,22,23,24,25,26,27,28,29,30};
3847 AliTPCcalibAlign *align = this;
3848 TCanvas * cOROCdyPhi = new TCanvas("OROC dyphi","OROC dyphi",900,600);
3849 cOROCdyPhi->Divide(6,6);
3850 for (Int_t isec=0;isec<36;isec++){
3851 cOROCdyPhi->cd(isec+1);
3852 Int_t secPlus = (isec%18==17)? isec-17:isec+1;
3853 Int_t secMinus= (isec%18==0) ? isec+17:isec-1;
3854 //printf("%d\t%d\t%d\n",isec,secPlus,secMinus);
3856 TProfile * profdyphiOOP=0,*profdyphiOOM=0,*profdyphiOOS=0;
3857 htemp = (TH2F*) (align->GetHisto(AliTPCcalibAlign::kYPhi,isec+36,secPlus+36));
3858 if (htemp) profdyphiOOP= htemp->ProfileX();
3859 htemp = (TH2F*)(align->GetHisto(AliTPCcalibAlign::kYPhi,isec+36,secMinus+36));
3860 if (htemp) profdyphiOOM= htemp->ProfileX();
3861 htemp = (TH2F*)(align->GetHisto(AliTPCcalibAlign::kYPhi,isec+36,isec));
3862 if (htemp) profdyphiOOS= htemp->ProfileX();
3865 profdyphiOOS->SetLineColor(kmicolors[0]);
3866 profdyphiOOS->SetMarkerStyle(kmimarkers[0]);
3867 profdyphiOOS->SetMarkerSize(0.2);
3868 profdyphiOOS->SetMaximum(0.5);
3869 profdyphiOOS->SetMinimum(-0.5);
3870 profdyphiOOS->SetXTitle("tan(#phi)");
3871 profdyphiOOS->SetYTitle("#DeltaY (cm)");
3874 profdyphiOOP->SetLineColor(kmicolors[1]);
3875 profdyphiOOP->SetMarkerStyle(kmimarkers[1]);
3876 profdyphiOOP->SetMarkerSize(0.2);
3879 profdyphiOOM->SetLineColor(kmicolors[3]);
3880 profdyphiOOM->SetMarkerStyle(kmimarkers[3]);
3881 profdyphiOOM->SetMarkerSize(0.2);
3884 profdyphiOOS->Draw();
3886 if (profdyphiOOM) profdyphiOOM->Draw("");
3887 if (profdyphiOOP) profdyphiOOP->Draw("");
3889 if (profdyphiOOM) profdyphiOOM->Draw("same");
3890 if (profdyphiOOP) profdyphiOOP->Draw("same");