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 **************************************************************************/
18 //-----------------------------------------------------------------------------
19 /// \class AliMUONAlignment
20 /// Alignment class for the ALICE DiMuon spectrometer
22 /// MUON specific alignment class which interface to AliMillepede.
23 /// For each track ProcessTrack calculates the local and global derivatives
24 /// at each cluster and fill the corresponding local equations. Provide methods
25 /// for fixing or constraining detection elements for best results.
27 /// \author Bruce Becker, Javier Castillo
28 //-----------------------------------------------------------------------------
30 #include "AliMUONAlignment.h"
31 #include "AliMUONTrack.h"
32 #include "AliMUONTrackParam.h"
33 #include "AliMUONVCluster.h"
34 #include "AliMUONGeometryTransformer.h"
35 #include "AliMUONGeometryModuleTransformer.h"
36 #include "AliMUONGeometryDetElement.h"
37 #include "AliMUONGeometryBuilder.h"
38 #include "AliMillepede.h"
40 #include "AliMpExMap.h"
41 #include "AliMpExMapIterator.h"
43 #include "AliAlignObjMatrix.h"
47 #include "TMatrixDSym.h"
48 #include "TClonesArray.h"
51 ClassImp(AliMUONAlignment)
54 //_____________________________________________________________________
56 Int_t AliMUONAlignment::fgNDetElem = 4*2+4*2+18*2+26*2+26*2;
57 Int_t AliMUONAlignment::fgNDetElemCh[10] = {4,4,4,4,18,18,26,26,26,26};
58 Int_t AliMUONAlignment::fgSNDetElemCh[10] = {4,8,12,16,34,52,78,104,130,156};
59 Int_t AliMUONAlignment::fgNParCh = 4;
60 Int_t AliMUONAlignment::fgNTrkMod = 16;
61 Int_t AliMUONAlignment::fgNCh = 10;
62 Int_t AliMUONAlignment::fgNSt = 5;
64 //_____________________________________________________________________
65 AliMUONAlignment::AliMUONAlignment()
75 fNGlobal(fgNDetElem*fgNParCh),
90 AliInfo(Form("fSigma[0]: %f\t fSigma[1]: %f",fSigma[0],fSigma[1]));
92 fDoF[0] = kTRUE; fDoF[1] = kTRUE; fDoF[2] = kTRUE; fDoF[3] = kTRUE;
93 fAllowVar[0] = 0.05; fAllowVar[1] = 0.05; fAllowVar[2] = 0.001; fAllowVar[3] = 0.5;
95 AliInfo(Form("fAllowVar[0]: %f\t fAllowVar[1]: %f\t fPhi: %f\t fgNDetElem: %i\t fNGlobal: %i\t fNLocal: %i",fAllowVar[0],fAllowVar[1],fPhi,fgNDetElem,fNGlobal,fNLocal));
97 fMillepede = new AliMillepede();
99 Init(fNGlobal, fNLocal, fNStdDev);
101 ResetLocalEquation();
102 AliInfo("Parameters initialized to zero");
106 //_____________________________________________________________________
107 AliMUONAlignment::~AliMUONAlignment()
110 //_____________________________________________________________________
111 void AliMUONAlignment::Init(
112 Int_t nGlobal, /* number of global paramers */
113 Int_t nLocal, /* number of local parameters */
114 Int_t nStdDev /* std dev cut */ )
116 /// Initialization of AliMillepede. Fix parameters, define constraints ...
117 fMillepede->InitMille(nGlobal,nLocal,nStdDev,fResCut,fResCutInitial);
119 // Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
120 // Bool_t bChOnOff[10] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
121 // Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE};
123 // AllowVariations(bChOnOff);
125 // Fix parameters or add constraints here
126 // for (Int_t iSt=0; iSt<5; iSt++)
127 // { if (!bStOnOff[iSt]) FixStation(iSt+1); }
129 // for (Int_t iCh=0; iCh<10; iCh++)
130 // { if (!bChOnOff[iCh]) FixChamber(iCh+1); }
132 // FixHalfSpectrometer(bChOnOff,bSpecLROnOff);
136 // Define global constrains to be applied
137 // X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY
138 Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
139 Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE};
140 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR,bSpecLROnOff);
142 // Other possible way to add constrains
143 bVarXYT[0] = kFALSE; bVarXYT[1] = kFALSE; bVarXYT[2] = kTRUE;
144 bDetTLBR[0] = kFALSE; bDetTLBR[1] = kTRUE; bDetTLBR[2] = kFALSE; bDetTLBR[3] = kFALSE;
145 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR);
147 bVarXYT[0] = kTRUE; bVarXYT[1] = kTRUE; bVarXYT[2] = kFALSE;
148 // AddConstraints(bStOnOff,bVarXYT);
151 if (fStartFac>1) fMillepede->SetIterations(fStartFac);
154 //_____________________________________________________________________
155 void AliMUONAlignment::FixStation(Int_t iSt)
157 /// Fix all detection elements of station iSt
158 Int_t iDetElemFirst = (iSt>1) ? fgSNDetElemCh[2*(iSt-1)-1] : 0;
159 Int_t iDetElemLast = fgSNDetElemCh[2*(iSt)-1];
160 for (Int_t i = iDetElemFirst; i < iDetElemLast; i++)
162 FixParameter(i*fgNParCh+0, 0.0);
163 FixParameter(i*fgNParCh+1, 0.0);
164 FixParameter(i*fgNParCh+2, 0.0);
165 FixParameter(i*fgNParCh+3, 0.0);
170 //_____________________________________________________________________
171 void AliMUONAlignment::FixChamber(Int_t iCh)
173 /// Fix all detection elements of chamber iCh
174 Int_t iDetElemFirst = (iCh>1) ? fgSNDetElemCh[iCh-2] : 0;
175 Int_t iDetElemLast = fgSNDetElemCh[iCh-1];
176 for (Int_t i = iDetElemFirst; i < iDetElemLast; i++)
178 FixParameter(i*fgNParCh+0, 0.0);
179 FixParameter(i*fgNParCh+1, 0.0);
180 FixParameter(i*fgNParCh+2, 0.0);
181 FixParameter(i*fgNParCh+3, 0.0);
185 //_____________________________________________________________________
186 void AliMUONAlignment::FixDetElem(Int_t iDetElemId, TString sVarXYT)
189 /// Fix a given detection element
190 Int_t iDetElemNumber = iDetElemId%100;
191 for (int iCh=0; iCh<iDetElemId/100-1; iCh++)
193 iDetElemNumber += fgNDetElemCh[iCh];
196 if (sVarXYT.Contains("X"))
199 FixParameter(iDetElemNumber*fgNParCh+0, 0.0);
202 if (sVarXYT.Contains("Y"))
205 FixParameter(iDetElemNumber*fgNParCh+1, 0.0);
208 if (sVarXYT.Contains("T"))
211 FixParameter(iDetElemNumber*fgNParCh+2, 0.0);
214 if (sVarXYT.Contains("Z"))
217 FixParameter(iDetElemNumber*fgNParCh+3, 0.0);
222 //_____________________________________________________________________
223 void AliMUONAlignment::FixHalfSpectrometer(const Bool_t *lChOnOff, const Bool_t *lSpecLROnOff)
226 /// Fix left or right detector
227 for (Int_t i = 0; i < fgNDetElem; i++)
231 for (iCh=1; iCh<=fgNCh; iCh++)
232 { if (i<fgSNDetElemCh[iCh-1]) break; }
237 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
238 if (iCh>=1 && iCh<=4)
241 if ((lDetElemNumber==1 || lDetElemNumber==2) && !lSpecLROnOff[0])
243 // From track crossings
244 FixParameter(i*fgNParCh+0, 0.0);
245 FixParameter(i*fgNParCh+1, 0.0);
246 FixParameter(i*fgNParCh+2, 0.0);
247 FixParameter(i*fgNParCh+3, 0.0);
250 if ((lDetElemNumber==0 || lDetElemNumber==3) && !lSpecLROnOff[1])
252 // From track crossings
253 FixParameter(i*fgNParCh+0, 0.0);
254 FixParameter(i*fgNParCh+1, 0.0);
255 FixParameter(i*fgNParCh+2, 0.0);
256 FixParameter(i*fgNParCh+3, 0.0);
261 if (iCh>=5 && iCh<=6)
264 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && !lSpecLROnOff[0])
266 FixParameter(i*fgNParCh+0, 0.0);
267 FixParameter(i*fgNParCh+1, 0.0);
268 FixParameter(i*fgNParCh+2, 0.0);
269 FixParameter(i*fgNParCh+3, 0.0);
272 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
273 (lDetElemNumber>=14&&lDetElemNumber<=17)) && !lSpecLROnOff[1])
276 FixParameter(i*fgNParCh+0, 0.0);
277 FixParameter(i*fgNParCh+1, 0.0);
278 FixParameter(i*fgNParCh+2, 0.0);
279 FixParameter(i*fgNParCh+3, 0.0);
284 if (iCh>=7 && iCh<=10)
287 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && !lSpecLROnOff[0])
289 FixParameter(i*fgNParCh+0, 0.0);
290 FixParameter(i*fgNParCh+1, 0.0);
291 FixParameter(i*fgNParCh+2, 0.0);
292 FixParameter(i*fgNParCh+3, 0.0);
295 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
296 (lDetElemNumber>=20&&lDetElemNumber<=25)) && !lSpecLROnOff[1])
298 FixParameter(i*fgNParCh+0, 0.0);
299 FixParameter(i*fgNParCh+1, 0.0);
300 FixParameter(i*fgNParCh+2, 0.0);
301 FixParameter(i*fgNParCh+3, 0.0);
312 //______________________________________________________________________
313 void AliMUONAlignment::SetNonLinear(const Bool_t *lChOnOff, const Bool_t *lVarXYT)
316 /// Set non linear parameter flag selected chambers and degrees of freedom
317 for (Int_t i = 0; i < fgNDetElem; i++)
321 for (iCh=1; iCh<=fgNCh; iCh++)
322 { if (i<fgSNDetElemCh[iCh-1]) break; }
330 SetNonLinear(i*fgNParCh+0);
336 SetNonLinear(i*fgNParCh+1);
342 SetNonLinear(i*fgNParCh+2);
348 SetNonLinear(i*fgNParCh+3);
357 //______________________________________________________________________
358 void AliMUONAlignment::AddConstraints(const Bool_t *lChOnOff, const Bool_t *lVarXYT)
361 /// Add constraint equations for selected chambers and degrees of freedom
362 for (Int_t i = 0; i < fgNDetElem; i++)
366 for (iCh=1; iCh<=fgNCh; iCh++)
368 if (i<fgSNDetElemCh[iCh-1]) break;
376 fConstraintX[i*fgNParCh+0]=1.0;
382 fConstraintY[i*fgNParCh+1]=1.0;
388 fConstraintP[i*fgNParCh+2]=1.0;
390 // if (lVarXYT[3]) { // Z constraint
391 // fConstraintP[i*fgNParCh+3]=1.0;
400 AddConstraint(fConstraintX,0.0);
406 AddConstraint(fConstraintY,0.0);
412 AddConstraint(fConstraintP,0.0);
415 // if (lVarXYT[3]) { // Z constraint
416 // AddConstraint(fConstraintP,0.0);
420 //______________________________________________________________________
421 void AliMUONAlignment::AddConstraints(const Bool_t *lChOnOff, const Bool_t *lVarXYT, const Bool_t *lDetTLBR, const Bool_t *lSpecLROnOff)
423 /// Add constraint equations for selected chambers, degrees of freedom and detector half
424 Double_t lDetElemLocX = 0.;
425 Double_t lDetElemLocY = 0.;
426 Double_t lDetElemLocZ = 0.;
427 Double_t lDetElemGloX = 0.;
428 Double_t lDetElemGloY = 0.;
429 Double_t lDetElemGloZ = 0.;
430 Double_t lMeanY = 0.;
431 Double_t lSigmaY = 0.;
432 Double_t lMeanZ = 0.;
433 Double_t lSigmaZ = 0.;
435 for (Int_t i = 0; i < fgNDetElem; i++)
439 for (iCh=1; iCh<=fgNCh; iCh++){
440 if (i<fgSNDetElemCh[iCh-1]) break;
442 if (lChOnOff[iCh-1]){
443 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
444 Int_t lDetElemId = iCh*100+lDetElemNumber;
445 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
446 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
447 if (iCh>=1 && iCh<=4){
448 if ((lDetElemNumber==1 || lDetElemNumber==2) && lSpecLROnOff[0]){ // From track crossings
449 lMeanY += lDetElemGloY;
450 lSigmaY += lDetElemGloY*lDetElemGloY;
451 lMeanZ += lDetElemGloZ;
452 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
455 if ((lDetElemNumber==0 || lDetElemNumber==3) && lSpecLROnOff[1]){ // From track crossings
456 lMeanY += lDetElemGloY;
457 lSigmaY += lDetElemGloY*lDetElemGloY;
458 lMeanZ += lDetElemGloZ;
459 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
463 if (iCh>=5 && iCh<=6){
464 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && lSpecLROnOff[0]){
465 lMeanY += lDetElemGloY;
466 lSigmaY += lDetElemGloY*lDetElemGloY;
467 lMeanZ += lDetElemGloZ;
468 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
471 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
472 (lDetElemNumber>=14&&lDetElemNumber<=17)) && lSpecLROnOff[1]){
473 lMeanY += lDetElemGloY;
474 lSigmaY += lDetElemGloY*lDetElemGloY;
475 lMeanZ += lDetElemGloZ;
476 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
480 if (iCh>=7 && iCh<=10){
481 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && lSpecLROnOff[0]){
482 lMeanY += lDetElemGloY;
483 lSigmaY += lDetElemGloY*lDetElemGloY;
484 lMeanZ += lDetElemGloZ;
485 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
488 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
489 (lDetElemNumber>=20&&lDetElemNumber<=25)) && lSpecLROnOff[1]){
490 lMeanY += lDetElemGloY;
491 lSigmaY += lDetElemGloY*lDetElemGloY;
492 lMeanZ += lDetElemGloZ;
493 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
500 lSigmaY /= lNDetElem;
501 lSigmaY = TMath::Sqrt(lSigmaY-lMeanY*lMeanY);
503 lSigmaZ /= lNDetElem;
504 lSigmaZ = TMath::Sqrt(lSigmaZ-lMeanZ*lMeanZ);
505 AliInfo(Form("Used %i DetElem, MeanZ= %f , SigmaZ= %f", lNDetElem,lMeanZ,lSigmaZ));
507 for (Int_t i = 0; i < fgNDetElem; i++){
509 for (iCh=1; iCh<=fgNCh; iCh++){
510 if (i<fgSNDetElemCh[iCh-1]) break;
512 if (lChOnOff[iCh-1]){
513 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
514 Int_t lDetElemId = iCh*100+lDetElemNumber;
515 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
516 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
517 if (lVarXYT[0]) { // X constraint
518 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXT,0); // Top half
519 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXL,0); // Left half
520 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXB,0); // Bottom half
521 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXR,0); // Right half
523 if (lVarXYT[1]) { // Y constraint
524 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYT,1); // Top half
525 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYL,1); // Left half
526 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYB,1); // Bottom half
527 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYR,1); // Right half
529 if (lVarXYT[2]) { // P constraint
530 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPT,2); // Top half
531 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPL,2); // Left half
532 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPB,2); // Bottom half
533 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPR,2); // Right half
535 if (lVarXYT[3]) { // X-Z shearing
536 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXZT,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
537 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXZL,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
538 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXZB,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
539 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXZR,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
541 if (lVarXYT[4]) { // Y-Z shearing
542 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYZT,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
543 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYZL,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
544 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYZB,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
545 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYZR,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
547 if (lVarXYT[5]) { // P-Z rotation
548 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPZT,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
549 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPZL,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
550 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPZB,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
551 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPZR,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
553 if (lVarXYT[6]) { // X-Y shearing
554 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXYT,0,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
555 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXYL,0,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
556 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXYB,0,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
557 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXYR,0,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
559 if (lVarXYT[7]) { // Y-Y scaling
560 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYYT,1,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
561 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYYL,1,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
562 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYYB,1,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
563 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYYR,1,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
565 if (lVarXYT[8]) { // P-Y rotation
566 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPYT,2,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
567 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPYL,2,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
568 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPYB,2,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
569 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPYR,2,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
573 if (lVarXYT[0]) { // X constraint
574 if (lDetTLBR[0]) AddConstraint(fConstraintXT,0.0); // Top half
575 if (lDetTLBR[1]) AddConstraint(fConstraintXL,0.0); // Left half
576 if (lDetTLBR[2]) AddConstraint(fConstraintXB,0.0); // Bottom half
577 if (lDetTLBR[3]) AddConstraint(fConstraintXR,0.0); // Right half
579 if (lVarXYT[1]) { // Y constraint
580 if (lDetTLBR[0]) AddConstraint(fConstraintYT,0.0); // Top half
581 if (lDetTLBR[1]) AddConstraint(fConstraintYL,0.0); // Left half
582 if (lDetTLBR[2]) AddConstraint(fConstraintYB,0.0); // Bottom half
583 if (lDetTLBR[3]) AddConstraint(fConstraintYR,0.0); // Right half
585 if (lVarXYT[2]) { // T constraint
586 if (lDetTLBR[0]) AddConstraint(fConstraintPT,0.0); // Top half
587 if (lDetTLBR[1]) AddConstraint(fConstraintPL,0.0); // Left half
588 if (lDetTLBR[2]) AddConstraint(fConstraintPB,0.0); // Bottom half
589 if (lDetTLBR[3]) AddConstraint(fConstraintPR,0.0); // Right half
591 if (lVarXYT[3]) { // X-Z constraint
592 if (lDetTLBR[0]) AddConstraint(fConstraintXZT,0.0); // Top half
593 if (lDetTLBR[1]) AddConstraint(fConstraintXZL,0.0); // Left half
594 if (lDetTLBR[2]) AddConstraint(fConstraintXZB,0.0); // Bottom half
595 if (lDetTLBR[3]) AddConstraint(fConstraintXZR,0.0); // Right half
597 if (lVarXYT[4]) { // Y-Z constraint
598 if (lDetTLBR[0]) AddConstraint(fConstraintYZT,0.0); // Top half
599 if (lDetTLBR[1]) AddConstraint(fConstraintYZL,0.0); // Left half
600 if (lDetTLBR[2]) AddConstraint(fConstraintYZB,0.0); // Bottom half
601 if (lDetTLBR[3]) AddConstraint(fConstraintYZR,0.0); // Right half
603 if (lVarXYT[5]) { // P-Z constraint
604 if (lDetTLBR[0]) AddConstraint(fConstraintPZT,0.0); // Top half
605 if (lDetTLBR[1]) AddConstraint(fConstraintPZL,0.0); // Left half
606 if (lDetTLBR[2]) AddConstraint(fConstraintPZB,0.0); // Bottom half
607 if (lDetTLBR[3]) AddConstraint(fConstraintPZR,0.0); // Right half
609 if (lVarXYT[6]) { // X-Y constraint
610 if (lDetTLBR[0]) AddConstraint(fConstraintXYT,0.0); // Top half
611 if (lDetTLBR[1]) AddConstraint(fConstraintXYL,0.0); // Left half
612 if (lDetTLBR[2]) AddConstraint(fConstraintXYB,0.0); // Bottom half
613 if (lDetTLBR[3]) AddConstraint(fConstraintXYR,0.0); // Right half
615 if (lVarXYT[7]) { // Y-Y constraint
616 if (lDetTLBR[0]) AddConstraint(fConstraintYYT,0.0); // Top half
617 if (lDetTLBR[1]) AddConstraint(fConstraintYYL,0.0); // Left half
618 if (lDetTLBR[2]) AddConstraint(fConstraintYYB,0.0); // Bottom half
619 if (lDetTLBR[3]) AddConstraint(fConstraintYYR,0.0); // Right half
621 if (lVarXYT[8]) { // P-Y constraint
622 if (lDetTLBR[0]) AddConstraint(fConstraintPYT,0.0); // Top half
623 if (lDetTLBR[1]) AddConstraint(fConstraintPYL,0.0); // Left half
624 if (lDetTLBR[2]) AddConstraint(fConstraintPYB,0.0); // Bottom half
625 if (lDetTLBR[3]) AddConstraint(fConstraintPYR,0.0); // Right half
629 void AliMUONAlignment::ConstrainT(Int_t lDetElem, Int_t lCh, Double_t *lConstraintT, Int_t iVar, Double_t /*lWeight*/) const{
630 /// Set constrain equation for top half of spectrometer
631 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
632 if (lCh>=1 && lCh<=4){
633 if (lDetElemNumber==0 || lDetElemNumber==1){ // From track crossings
634 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
637 if (lCh>=5 && lCh<=6){
638 if (lDetElemNumber>=0&&lDetElemNumber<=9){
639 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
642 if (lCh>=7 && lCh<=10){
643 if (lDetElemNumber>=0&&lDetElemNumber<=13){
644 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
649 //______________________________________________________________________
650 void AliMUONAlignment::ConstrainL(Int_t lDetElem, Int_t lCh, Double_t *lConstraintL, Int_t iVar, Double_t lWeight) const{
651 /// Set constrain equation for left half of spectrometer
652 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
653 if (lCh>=1 && lCh<=4){
654 if (lDetElemNumber==1 || lDetElemNumber==2){ // From track crossings
655 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
658 if (lCh>=5 && lCh<=6){
659 if (lDetElemNumber>=5&&lDetElemNumber<=13){
660 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
663 if (lCh>=7 && lCh<=10){
664 if (lDetElemNumber>=7&&lDetElemNumber<=19){
665 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
670 //______________________________________________________________________
671 void AliMUONAlignment::ConstrainB(Int_t lDetElem, Int_t lCh, Double_t *lConstraintB, Int_t iVar, Double_t /*lWeight*/) const{
672 /// Set constrain equation for bottom half of spectrometer
673 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
674 if (lCh>=1 && lCh<=4){
675 if (lDetElemNumber==2 || lDetElemNumber==3){ // From track crossings
676 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
679 if (lCh>=5 && lCh<=6){
680 if ((lDetElemNumber>=9&&lDetElemNumber<=17) ||
681 (lDetElemNumber==0)){
682 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
685 if (lCh>=7 && lCh<=10){
686 if ((lDetElemNumber>=13&&lDetElemNumber<=25) ||
687 (lDetElemNumber==0)){
688 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
693 //______________________________________________________________________
694 void AliMUONAlignment::ConstrainR(Int_t lDetElem, Int_t lCh, Double_t *lConstraintR, Int_t iVar, Double_t lWeight) const{
695 /// Set constrain equation for right half of spectrometer
696 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
697 if (lCh>=1 && lCh<=4){
698 if (lDetElemNumber==0 || lDetElemNumber==3){ // From track crossings
699 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
702 if (lCh>=5 && lCh<=6){
703 if ((lDetElemNumber>=0&&lDetElemNumber<=4) ||
704 (lDetElemNumber>=14&&lDetElemNumber<=17)){
705 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
708 if (lCh>=7 && lCh<=10){
709 if ((lDetElemNumber>=0&&lDetElemNumber<=6) ||
710 (lDetElemNumber>=20&&lDetElemNumber<=25)){
711 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
716 //______________________________________________________________________
717 void AliMUONAlignment::ResetConstraints(){
718 /// Reset all constraint equations
719 for (Int_t i = 0; i < fgNDetElem; i++){
720 fConstraintX[i*fgNParCh+0]=0.0;
721 fConstraintX[i*fgNParCh+1]=0.0;
722 fConstraintX[i*fgNParCh+2]=0.0;
723 fConstraintY[i*fgNParCh+0]=0.0;
724 fConstraintY[i*fgNParCh+1]=0.0;
725 fConstraintY[i*fgNParCh+2]=0.0;
726 fConstraintP[i*fgNParCh+0]=0.0;
727 fConstraintP[i*fgNParCh+1]=0.0;
728 fConstraintP[i*fgNParCh+2]=0.0;
729 fConstraintXT[i*fgNParCh+0]=0.0;
730 fConstraintXT[i*fgNParCh+1]=0.0;
731 fConstraintXT[i*fgNParCh+2]=0.0;
732 fConstraintYT[i*fgNParCh+0]=0.0;
733 fConstraintYT[i*fgNParCh+1]=0.0;
734 fConstraintYT[i*fgNParCh+2]=0.0;
735 fConstraintPT[i*fgNParCh+0]=0.0;
736 fConstraintPT[i*fgNParCh+1]=0.0;
737 fConstraintPT[i*fgNParCh+2]=0.0;
738 fConstraintXZT[i*fgNParCh+0]=0.0;
739 fConstraintXZT[i*fgNParCh+1]=0.0;
740 fConstraintXZT[i*fgNParCh+2]=0.0;
741 fConstraintYZT[i*fgNParCh+0]=0.0;
742 fConstraintYZT[i*fgNParCh+1]=0.0;
743 fConstraintYZT[i*fgNParCh+2]=0.0;
744 fConstraintPZT[i*fgNParCh+0]=0.0;
745 fConstraintPZT[i*fgNParCh+1]=0.0;
746 fConstraintPZT[i*fgNParCh+2]=0.0;
747 fConstraintXYT[i*fgNParCh+0]=0.0;
748 fConstraintXYT[i*fgNParCh+1]=0.0;
749 fConstraintXYT[i*fgNParCh+2]=0.0;
750 fConstraintYYT[i*fgNParCh+0]=0.0;
751 fConstraintYYT[i*fgNParCh+1]=0.0;
752 fConstraintYYT[i*fgNParCh+2]=0.0;
753 fConstraintPYT[i*fgNParCh+0]=0.0;
754 fConstraintPYT[i*fgNParCh+1]=0.0;
755 fConstraintPYT[i*fgNParCh+2]=0.0;
756 fConstraintXL[i*fgNParCh+0]=0.0;
757 fConstraintXL[i*fgNParCh+1]=0.0;
758 fConstraintXL[i*fgNParCh+2]=0.0;
759 fConstraintYL[i*fgNParCh+0]=0.0;
760 fConstraintYL[i*fgNParCh+1]=0.0;
761 fConstraintYL[i*fgNParCh+2]=0.0;
762 fConstraintPL[i*fgNParCh+0]=0.0;
763 fConstraintPL[i*fgNParCh+1]=0.0;
764 fConstraintPL[i*fgNParCh+2]=0.0;
765 fConstraintXZL[i*fgNParCh+0]=0.0;
766 fConstraintXZL[i*fgNParCh+1]=0.0;
767 fConstraintXZL[i*fgNParCh+2]=0.0;
768 fConstraintYZL[i*fgNParCh+0]=0.0;
769 fConstraintYZL[i*fgNParCh+1]=0.0;
770 fConstraintYZL[i*fgNParCh+2]=0.0;
771 fConstraintPZL[i*fgNParCh+0]=0.0;
772 fConstraintPZL[i*fgNParCh+1]=0.0;
773 fConstraintPZL[i*fgNParCh+2]=0.0;
774 fConstraintXYL[i*fgNParCh+0]=0.0;
775 fConstraintXYL[i*fgNParCh+1]=0.0;
776 fConstraintXYL[i*fgNParCh+2]=0.0;
777 fConstraintYYL[i*fgNParCh+0]=0.0;
778 fConstraintYYL[i*fgNParCh+1]=0.0;
779 fConstraintYYL[i*fgNParCh+2]=0.0;
780 fConstraintPYL[i*fgNParCh+0]=0.0;
781 fConstraintPYL[i*fgNParCh+1]=0.0;
782 fConstraintPYL[i*fgNParCh+2]=0.0;
783 fConstraintXB[i*fgNParCh+0]=0.0;
784 fConstraintXB[i*fgNParCh+1]=0.0;
785 fConstraintXB[i*fgNParCh+2]=0.0;
786 fConstraintYB[i*fgNParCh+0]=0.0;
787 fConstraintYB[i*fgNParCh+1]=0.0;
788 fConstraintYB[i*fgNParCh+2]=0.0;
789 fConstraintPB[i*fgNParCh+0]=0.0;
790 fConstraintPB[i*fgNParCh+1]=0.0;
791 fConstraintPB[i*fgNParCh+2]=0.0;
792 fConstraintXZB[i*fgNParCh+0]=0.0;
793 fConstraintXZB[i*fgNParCh+1]=0.0;
794 fConstraintXZB[i*fgNParCh+2]=0.0;
795 fConstraintYZB[i*fgNParCh+0]=0.0;
796 fConstraintYZB[i*fgNParCh+1]=0.0;
797 fConstraintYZB[i*fgNParCh+2]=0.0;
798 fConstraintPZB[i*fgNParCh+0]=0.0;
799 fConstraintPZB[i*fgNParCh+1]=0.0;
800 fConstraintPZB[i*fgNParCh+2]=0.0;
801 fConstraintXYB[i*fgNParCh+0]=0.0;
802 fConstraintXYB[i*fgNParCh+1]=0.0;
803 fConstraintXYB[i*fgNParCh+2]=0.0;
804 fConstraintYYB[i*fgNParCh+0]=0.0;
805 fConstraintYYB[i*fgNParCh+1]=0.0;
806 fConstraintYYB[i*fgNParCh+2]=0.0;
807 fConstraintPYB[i*fgNParCh+0]=0.0;
808 fConstraintPYB[i*fgNParCh+1]=0.0;
809 fConstraintPYB[i*fgNParCh+2]=0.0;
810 fConstraintXR[i*fgNParCh+0]=0.0;
811 fConstraintXR[i*fgNParCh+1]=0.0;
812 fConstraintXR[i*fgNParCh+2]=0.0;
813 fConstraintYR[i*fgNParCh+0]=0.0;
814 fConstraintYR[i*fgNParCh+1]=0.0;
815 fConstraintYR[i*fgNParCh+2]=0.0;
816 fConstraintPR[i*fgNParCh+0]=0.0;
817 fConstraintPR[i*fgNParCh+1]=0.0;
818 fConstraintPR[i*fgNParCh+2]=0.0;
819 fConstraintXZR[i*fgNParCh+0]=0.0;
820 fConstraintXZR[i*fgNParCh+1]=0.0;
821 fConstraintXZR[i*fgNParCh+2]=0.0;
822 fConstraintYZR[i*fgNParCh+0]=0.0;
823 fConstraintYZR[i*fgNParCh+1]=0.0;
824 fConstraintYZR[i*fgNParCh+2]=0.0;
825 fConstraintPZR[i*fgNParCh+0]=0.0;
826 fConstraintPZR[i*fgNParCh+1]=0.0;
827 fConstraintPZR[i*fgNParCh+2]=0.0;
828 fConstraintPZR[i*fgNParCh+0]=0.0;
829 fConstraintPZR[i*fgNParCh+1]=0.0;
830 fConstraintPZR[i*fgNParCh+2]=0.0;
831 fConstraintXYR[i*fgNParCh+0]=0.0;
832 fConstraintXYR[i*fgNParCh+1]=0.0;
833 fConstraintXYR[i*fgNParCh+2]=0.0;
834 fConstraintYYR[i*fgNParCh+0]=0.0;
835 fConstraintYYR[i*fgNParCh+1]=0.0;
836 fConstraintYYR[i*fgNParCh+2]=0.0;
837 fConstraintPYR[i*fgNParCh+0]=0.0;
838 fConstraintPYR[i*fgNParCh+1]=0.0;
839 fConstraintPYR[i*fgNParCh+2]=0.0;
843 //______________________________________________________________________
844 void AliMUONAlignment::AddConstraint(Double_t *par, Double_t value) {
845 /// Constrain equation defined by par to value
846 fMillepede->SetGlobalConstraint(par, value);
847 AliInfo("Adding constraint");
850 //______________________________________________________________________
851 void AliMUONAlignment::InitGlobalParameters(Double_t *par) {
852 /// Initialize global parameters with par array
853 fMillepede->SetGlobalParameters(par);
854 AliInfo("Init Global Parameters");
857 //______________________________________________________________________
858 void AliMUONAlignment::FixParameter(Int_t iPar, Double_t value) {
859 /// Parameter iPar is encourage to vary in [-value;value].
860 /// If value == 0, parameter is fixed
861 fMillepede->SetParSigma(iPar, value);
862 if (TMath::Abs(value)<1e-4) AliInfo(Form("Parameter %i Fixed", iPar));
865 //______________________________________________________________________
866 void AliMUONAlignment::ResetLocalEquation()
868 /// Reset the derivative vectors
869 for(int i=0; i<fNLocal; i++) {
870 fLocalDerivatives[i] = 0.0;
872 for(int i=0; i<fNGlobal; i++) {
873 fGlobalDerivatives[i] = 0.0;
877 //______________________________________________________________________
878 void AliMUONAlignment::AllowVariations(const Bool_t *bChOnOff)
881 /// Set allowed variation for selected chambers based on fDoF and fAllowVar
882 for (Int_t iCh=1; iCh<=10; iCh++)
887 Int_t iDetElemFirst = (iCh>1) ? fgSNDetElemCh[iCh-2] : 0;
888 Int_t iDetElemLast = fgSNDetElemCh[iCh-1];
889 for (int i=0; i<fgNParCh; i++)
891 AliDebug(1,Form("fDoF[%d]= %d",i,fDoF[i]));
894 for (Int_t j=iDetElemFirst; j<iDetElemLast; j++){
895 FixParameter(j*fgNParCh+i, fAllowVar[i]);
907 //______________________________________________________________________
908 void AliMUONAlignment::SetNonLinear(Int_t iPar /* set non linear flag */ )
910 /// Set nonlinear flag for parameter iPar
911 fMillepede->SetNonLinear(iPar);
912 AliInfo(Form("Parameter %i set to non linear", iPar));
915 //______________________________________________________________________
916 void AliMUONAlignment::SetSigmaXY(Double_t sigmaX, Double_t sigmaY)
919 /// Set expected measurement resolution
920 fSigma[0] = sigmaX; fSigma[1] = sigmaY;
921 AliInfo(Form("Using fSigma[0]=%f and fSigma[1]=%f",fSigma[0],fSigma[1]));
925 //______________________________________________________________________
926 void AliMUONAlignment::LocalEquationX( Bool_t doAlignment )
930 // local cluster record
931 AliMUONAlignmentClusterRecord clusterRecord;
933 // store detector and measurement
934 clusterRecord.SetDetElemId( fDetElemId );
935 clusterRecord.SetDetElemNumber( fDetElemNumber );
936 clusterRecord.SetMeas( fMeas[0] );
937 clusterRecord.SetSigma( fSigma[0] );
939 // store local derivatives
940 clusterRecord.SetLocalDerivative( 0, fCosPhi );
941 clusterRecord.SetLocalDerivative( 1, fCosPhi*(fTrackPos[2] - fTrackPos0[2]) );
942 clusterRecord.SetLocalDerivative( 2, fSinPhi );
943 clusterRecord.SetLocalDerivative( 3, fSinPhi*(fTrackPos[2] - fTrackPos0[2]) );
945 // store global derivatives
946 clusterRecord.SetGlobalDerivative( 0, -fCosPhi );
947 clusterRecord.SetGlobalDerivative( 1, -fSinPhi );
952 clusterRecord.SetGlobalDerivative(
954 -fSinPhi*(fTrackPos[0]-fDetElemPos[0])
955 +fCosPhi*(fTrackPos[1]-fDetElemPos[1]) );
959 clusterRecord.SetGlobalDerivative(
961 -fSinPhi*(fTrackPos0[0]+fTrackSlope0[0]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
962 +fCosPhi*(fTrackPos0[1]+fTrackSlope0[1]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]) );
966 clusterRecord.SetGlobalDerivative( 3, fCosPhi*fTrackSlope0[0]+fSinPhi*fTrackSlope0[1] );
968 // append to trackRecord
969 fTrackRecord.AddClusterRecord( clusterRecord );
971 // store local equation
972 if( doAlignment ) LocalEquation( clusterRecord );
976 //______________________________________________________________________
977 void AliMUONAlignment::LocalEquationY(Bool_t doAlignment )
980 // local cluster record
981 AliMUONAlignmentClusterRecord clusterRecord;
983 // store detector and measurement
984 clusterRecord.SetDetElemId( fDetElemId );
985 clusterRecord.SetDetElemNumber( fDetElemNumber );
986 clusterRecord.SetMeas( fMeas[1] );
987 clusterRecord.SetSigma( fSigma[1] );
989 // store local derivatives
990 clusterRecord.SetLocalDerivative( 0, -fSinPhi );
991 clusterRecord.SetLocalDerivative( 1, -fSinPhi*(fTrackPos[2] - fTrackPos0[2] ) );
992 clusterRecord.SetLocalDerivative( 2, fCosPhi );
993 clusterRecord.SetLocalDerivative( 3, fCosPhi*(fTrackPos[2] - fTrackPos0[2] ) );
995 // set global derivatives
996 clusterRecord.SetGlobalDerivative( 0, fSinPhi);
997 clusterRecord.SetGlobalDerivative( 1, -fCosPhi);
1002 clusterRecord.SetGlobalDerivative(
1004 -fCosPhi*(fTrackPos[0]-fDetElemPos[0])
1005 -fSinPhi*(fTrackPos[1]-fDetElemPos[1]));
1009 clusterRecord.SetGlobalDerivative(
1011 -fCosPhi*(fTrackPos0[0]+fTrackSlope0[0]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
1012 -fSinPhi*(fTrackPos0[1]+fTrackSlope0[1]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]));
1015 clusterRecord.SetGlobalDerivative( 3, -fSinPhi*fTrackSlope0[0]+fCosPhi*fTrackSlope0[1]);
1017 // append to trackRecord
1018 fTrackRecord.AddClusterRecord( clusterRecord );
1020 // store local equation
1021 if( doAlignment ) LocalEquation( clusterRecord );
1025 //_____________________________________________________
1026 void AliMUONAlignment::LocalEquation( const AliMUONAlignmentClusterRecord& clusterRecord )
1029 // copy to local variables
1030 for( Int_t index = 0; index < 4; ++index )
1032 SetLocalDerivative( index, clusterRecord.GetLocalDerivative( index ) );
1033 SetGlobalDerivative( clusterRecord.GetDetElemNumber()*fgNParCh + index, clusterRecord.GetGlobalDerivative( index ) );
1036 // pass equation parameters to millepede
1037 fMillepede->SetLocalEquation( fGlobalDerivatives, fLocalDerivatives, clusterRecord.GetMeas(), clusterRecord.GetSigma() );
1041 //______________________________________________________________________
1042 void AliMUONAlignment::FillRecPointData()
1045 /// Get information of current cluster
1046 fClustPos[0] = fCluster->GetX();
1047 fClustPos[1] = fCluster->GetY();
1048 fClustPos[2] = fCluster->GetZ();
1049 fTransform->Global2Local(
1050 fDetElemId,fClustPos[0],fClustPos[1],fClustPos[2],
1051 fClustPosLoc[0],fClustPosLoc[1],fClustPosLoc[2]);
1055 //______________________________________________________________________
1056 void AliMUONAlignment::FillTrackParamData()
1059 /// Get information of current track at current cluster
1060 fTrackPos[0] = fTrackParam->GetNonBendingCoor();
1061 fTrackPos[1] = fTrackParam->GetBendingCoor();
1062 fTrackPos[2] = fTrackParam->GetZ();
1063 fTrackSlope[0] = fTrackParam->GetNonBendingSlope();
1064 fTrackSlope[1] = fTrackParam->GetBendingSlope();
1065 fTransform->Global2Local(
1066 fDetElemId,fTrackPos[0],fTrackPos[1],fTrackPos[2],
1067 fTrackPosLoc[0],fTrackPosLoc[1],fTrackPosLoc[2]);
1071 //_____________________________________________________
1072 void AliMUONAlignment::FillDetElemData()
1075 /// Get information of current detection element
1076 Double_t lDetElemLocX = 0.;
1077 Double_t lDetElemLocY = 0.;
1078 Double_t lDetElemLocZ = 0.;
1079 fDetElemId = fCluster->GetDetElemId();
1080 fDetElemNumber = fDetElemId%100;
1081 for (int iCh=0; iCh<fDetElemId/100-1; iCh++)
1082 { fDetElemNumber += fgNDetElemCh[iCh]; }
1084 fTransform->Local2Global(
1085 fDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
1086 fDetElemPos[0],fDetElemPos[1],fDetElemPos[2]);
1090 //_____________________________________________________
1091 AliMUONAlignmentTrackRecord* AliMUONAlignment::ProcessTrack( AliMUONTrack* track, Bool_t doAlignment )
1094 // store current track in running member.
1097 // clear track record
1098 fTrackRecord.Clear();
1100 // get number of tracks
1101 Int_t nTrackParam = fTrack->GetTrackParamAtCluster()->GetEntries();
1102 AliDebug(1,Form("Number of track param entries : %i ", nTrackParam));
1104 Bool_t first( kTRUE );
1105 for(Int_t iCluster=0; iCluster<nTrackParam; iCluster++)
1108 // and get new pointers
1109 fTrackParam = (AliMUONTrackParam *) fTrack->GetTrackParamAtCluster()->At(iCluster);
1110 if ( ! fTrackParam ) continue;
1111 fCluster = fTrackParam->GetClusterPtr();
1112 if ( ! fCluster ) continue;
1113 // if (fDetElemId<500) continue;
1115 // fill local variables for this position --> one measurement
1118 FillTrackParamData();
1123 // for first valid cluster, save track position as "starting" values
1126 fTrackPos0[0] = fTrackPos[0];
1127 fTrackPos0[1] = fTrackPos[1];
1128 fTrackPos0[2] = fTrackPos[2];
1129 fTrackSlope0[0] = fTrackSlope[0];
1130 fTrackSlope0[1] = fTrackSlope[1];
1134 // calculate measurements
1135 fCosPhi = TMath::Cos(fPhi);
1136 fSinPhi = TMath::Sin(fPhi);
1140 fMeas[0] = fTrackPos[0] - fClustPos[0];
1141 fMeas[1] = fTrackPos[1] - fClustPos[1];
1145 fMeas[0] = - fClustPos[0];
1146 fMeas[1] = - fClustPos[1];
1151 AliDebug(1,Form("cluster: %i", iCluster));
1152 AliDebug(1,Form("x: %f\t y: %f\t z: %f\t DetElemID: %i\t ", fClustPos[0], fClustPos[1], fClustPos[2], fDetElemId));
1153 AliDebug(1,Form("fDetElemPos[0]: %f\t fDetElemPos[1]: %f\t fDetElemPos[2]: %f\t DetElemID: %i\t ", fDetElemPos[0],fDetElemPos[1],fDetElemPos[2], fDetElemId));
1155 AliDebug(1,Form("Track Parameter: %i", iCluster));
1156 AliDebug(1,Form("x: %f\t y: %f\t z: %f\t slopex: %f\t slopey: %f", fTrackPos[0], fTrackPos[1], fTrackPos[2], fTrackSlope[0], fTrackSlope[1]));
1157 AliDebug(1,Form("x0: %f\t y0: %f\t z0: %f\t slopex0: %f\t slopey0: %f", fTrackPos0[0], fTrackPos0[1], fTrackPos0[2], fTrackSlope0[0], fTrackSlope0[1]));
1159 AliDebug(1,Form("fMeas[0]: %f\t fMeas[1]: %f\t fSigma[0]: %f\t fSigma[1]: %f", fMeas[0], fMeas[1], fSigma[0], fSigma[1]));
1161 // Set local equations
1162 LocalEquationX( doAlignment );
1163 LocalEquationY( doAlignment );
1167 return &fTrackRecord;
1171 //______________________________________________________________________________
1172 void AliMUONAlignment::ProcessTrack( AliMUONAlignmentTrackRecord* track, Bool_t doAlignment )
1175 if( !( track && doAlignment ) ) return;
1177 // loop over clusters
1178 for( Int_t index = 0; index < track->GetNRecords(); ++index )
1179 { if( AliMUONAlignmentClusterRecord* record = track->GetRecord( index ) ) LocalEquation( *record ); }
1185 //_____________________________________________________
1186 void AliMUONAlignment::LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t lSingleFit)
1189 /// Call local fit for this tracks
1190 Int_t iRes = fMillepede->LocalFit(iTrack,lTrackParam,lSingleFit);
1191 if (iRes && !lSingleFit)
1192 { fMillepede->SetNLocalEquations(fMillepede->GetNLocalEquations()+1); }
1196 //_____________________________________________________
1197 void AliMUONAlignment::GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls)
1200 /// Call global fit; Global parameters are stored in parameters
1201 fMillepede->GlobalFit(parameters,errors,pulls);
1203 AliInfo("Done fitting global parameters!");
1204 for (int iGlob=0; iGlob<fgNDetElem; iGlob++)
1205 { printf("%d\t %f\t %f\t %f\t %f \n",iGlob,parameters[iGlob*fgNParCh+0],parameters[iGlob*fgNParCh+1],parameters[iGlob*fgNParCh+3],parameters[iGlob*fgNParCh+2]); }
1210 //_____________________________________________________
1211 Double_t AliMUONAlignment::GetParError(Int_t iPar)
1213 /// Get error of parameter iPar
1214 Double_t lErr = fMillepede->GetParError(iPar);
1218 //_____________________________________________________
1219 void AliMUONAlignment::PrintGlobalParameters()
1221 /// Print global parameters
1222 fMillepede->PrintGlobalParameters();
1225 //_________________________________________________________________________
1226 TGeoCombiTrans AliMUONAlignment::ReAlign(const TGeoCombiTrans & transform, const double *lMisAlignment) const
1228 /// Realign given transformation by given misalignment and return the misaligned transformation
1230 Double_t cartMisAlig[3] = {0,0,0};
1231 Double_t angMisAlig[3] = {0,0,0};
1232 // const Double_t *trans = transform.GetTranslation();
1233 // TGeoRotation *rot;
1234 // // check if the rotation we obtain is not NULL
1235 // if (transform.GetRotation()) {
1236 // rot = transform.GetRotation();
1239 // rot = new TGeoRotation("rot");
1240 // } // default constructor.
1242 cartMisAlig[0] = -TMath::Sign(1.0,transform.GetRotationMatrix()[0])*lMisAlignment[0];
1243 cartMisAlig[1] = -TMath::Sign(1.0,transform.GetRotationMatrix()[4])*lMisAlignment[1];
1244 cartMisAlig[2] = -TMath::Sign(1.0,transform.GetRotationMatrix()[8])*lMisAlignment[3];
1245 angMisAlig[2] = -TMath::Sign(1.0,transform.GetRotationMatrix()[0]*transform.GetRotationMatrix()[4])*lMisAlignment[2]*180./TMath::Pi();
1247 TGeoTranslation deltaTrans(cartMisAlig[0], cartMisAlig[1], cartMisAlig[2]);
1248 TGeoRotation deltaRot;
1249 deltaRot.RotateX(angMisAlig[0]);
1250 deltaRot.RotateY(angMisAlig[1]);
1251 deltaRot.RotateZ(angMisAlig[2]);
1253 TGeoCombiTrans deltaTransf(deltaTrans,deltaRot);
1254 TGeoHMatrix newTransfMat = transform * deltaTransf;
1256 return TGeoCombiTrans(newTransfMat);
1259 //______________________________________________________________________
1260 AliMUONGeometryTransformer *
1261 AliMUONAlignment::ReAlign(const AliMUONGeometryTransformer * transformer,
1262 const double *misAlignments, Bool_t verbose)
1265 /// Returns a new AliMUONGeometryTransformer with the found misalignments
1268 // Takes the internal geometry module transformers, copies them
1269 // and gets the Detection Elements from them.
1270 // Takes misalignment parameters and applies these
1271 // to the local transform of the Detection Element
1272 // Obtains the global transform by multiplying the module transformer
1273 // transformation with the local transformation
1274 // Applies the global transform to a new detection element
1275 // Adds the new detection element to a new module transformer
1276 // Adds the new module transformer to a new geometry transformer
1277 // Returns the new geometry transformer
1279 Double_t lModuleMisAlignment[4] = {0.,0.,0.,0.};
1280 Double_t lDetElemMisAlignment[4] = {0.,0.,0.,0.};
1281 Int_t iDetElemId = 0;
1282 Int_t iDetElemNumber = 0;
1284 AliMUONGeometryTransformer *newGeometryTransformer =
1285 new AliMUONGeometryTransformer();
1286 for (Int_t iMt = 0; iMt < transformer->GetNofModuleTransformers(); iMt++) {
1287 // module transformers
1288 const AliMUONGeometryModuleTransformer *kModuleTransformer =
1289 transformer->GetModuleTransformer(iMt, true);
1291 AliMUONGeometryModuleTransformer *newModuleTransformer =
1292 new AliMUONGeometryModuleTransformer(iMt);
1293 newGeometryTransformer->AddModuleTransformer(newModuleTransformer);
1295 TGeoCombiTrans moduleTransform =
1296 TGeoCombiTrans(*kModuleTransformer->GetTransformation());
1297 // New module transformation
1298 TGeoCombiTrans newModuleTransform = ReAlign(moduleTransform,lModuleMisAlignment);
1299 newModuleTransformer->SetTransformation(newModuleTransform);
1301 // Get delta transformation:
1302 // Tdelta = Tnew * Told.inverse
1303 TGeoHMatrix deltaModuleTransform =
1304 AliMUONGeometryBuilder::Multiply(newModuleTransform,
1305 kModuleTransformer->GetTransformation()->Inverse());
1306 // Create module mis alignment matrix
1307 newGeometryTransformer
1308 ->AddMisAlignModule(kModuleTransformer->GetModuleId(), deltaModuleTransform);
1310 AliMpExMap *detElements = kModuleTransformer->GetDetElementStore();
1313 AliInfo(Form("%i DEs in old GeometryStore %i",detElements->GetSize(), iMt));
1315 TIter next(detElements->CreateIterator());
1316 AliMUONGeometryDetElement* detElement;
1318 while ( ( detElement = static_cast<AliMUONGeometryDetElement*>(next()) ) )
1321 // make a new detection element
1322 AliMUONGeometryDetElement *newDetElement =
1323 new AliMUONGeometryDetElement(detElement->GetId(),
1324 detElement->GetVolumePath());
1325 TString lDetElemName(detElement->GetDEName());
1326 lDetElemName.ReplaceAll("DE","");
1327 iDetElemId = lDetElemName.Atoi();
1328 iDetElemNumber = iDetElemId%100;
1329 for (int iCh=0; iCh<iDetElemId/100-1; iCh++){
1330 iDetElemNumber += fgNDetElemCh[iCh];
1332 for (int i=0; i<fgNParCh; i++) {
1333 lDetElemMisAlignment[i] = 0.0;
1334 if (iMt<fgNTrkMod) {
1335 AliInfo(Form("iMt %i, iCh %i, iDe %i, iDeId %i, iDeNb %i, iPar %i",iMt, iDetElemId/100, iDe, iDetElemId, iDetElemNumber, iDetElemNumber*fgNParCh+i));
1336 lDetElemMisAlignment[i] = misAlignments[iDetElemNumber*fgNParCh+i];
1339 // local transformation of this detection element.
1340 TGeoCombiTrans localTransform
1341 = TGeoCombiTrans(*detElement->GetLocalTransformation());
1342 TGeoCombiTrans newLocalTransform = ReAlign(localTransform,lDetElemMisAlignment);
1343 newDetElement->SetLocalTransformation(newLocalTransform);
1345 // global transformation
1346 TGeoHMatrix newGlobalTransform =
1347 AliMUONGeometryBuilder::Multiply(newModuleTransform,
1349 newDetElement->SetGlobalTransformation(newGlobalTransform);
1351 // add this det element to module
1352 newModuleTransformer->GetDetElementStore()->Add(newDetElement->GetId(),
1355 // In the Alice Alignment Framework misalignment objects store
1356 // global delta transformation
1357 // Get detection "intermediate" global transformation
1358 TGeoHMatrix newOldGlobalTransform = newModuleTransform * localTransform;
1359 // Get detection element global delta transformation:
1360 // Tdelta = Tnew * Told.inverse
1361 TGeoHMatrix deltaGlobalTransform
1362 = AliMUONGeometryBuilder::Multiply(newGlobalTransform,
1363 newOldGlobalTransform.Inverse());
1365 // Create mis alignment matrix
1366 newGeometryTransformer
1367 ->AddMisAlignDetElement(detElement->GetId(), deltaGlobalTransform);
1371 AliInfo(Form("Added module transformer %i to the transformer", iMt));
1372 newGeometryTransformer->AddModuleTransformer(newModuleTransformer);
1374 return newGeometryTransformer;
1377 //______________________________________________________________________
1378 void AliMUONAlignment::SetAlignmentResolution(const TClonesArray* misAlignArray, Int_t rChId, Double_t rChResX, Double_t rChResY, Double_t rDeResX, Double_t rDeResY)
1381 /// Set alignment resolution to misalign objects to be stored in CDB
1382 Int_t chIdMin = (rChId<0)? 0 : rChId;
1383 Int_t chIdMax = (rChId<0)? 9 : rChId;
1384 Double_t chResX = rChResX;
1385 Double_t chResY = rChResY;
1386 Double_t deResX = rDeResX;
1387 Double_t deResY = rDeResY;
1389 TMatrixDSym mChCorrMatrix(6);
1390 mChCorrMatrix[0][0]=chResX*chResX;
1391 mChCorrMatrix[1][1]=chResY*chResY;
1392 // mChCorrMatrix.Print();
1394 TMatrixDSym mDECorrMatrix(6);
1395 mDECorrMatrix[0][0]=deResX*deResX;
1396 mDECorrMatrix[1][1]=deResY*deResY;
1397 // mDECorrMatrix.Print();
1399 AliAlignObjMatrix *alignMat = 0x0;
1401 for(Int_t chId=chIdMin; chId<=chIdMax; chId++) {
1405 chName1 = Form("GM%d",chId);
1406 chName2 = Form("GM%d",chId);
1408 chName1 = Form("GM%d",4+(chId-4)*2);
1409 chName2 = Form("GM%d",4+(chId-4)*2+1);
1412 for (int i=0; i<misAlignArray->GetEntries(); i++) {
1413 alignMat = (AliAlignObjMatrix*)misAlignArray->At(i);
1414 TString volName(alignMat->GetSymName());
1415 if((volName.Contains(chName1)&&
1416 ((volName.Last('/')==volName.Index(chName1)+chName1.Length())||
1417 (volName.Length()==volName.Index(chName1)+chName1.Length())))||
1418 (volName.Contains(chName2)&&
1419 ((volName.Last('/')==volName.Index(chName2)+chName2.Length())||
1420 (volName.Length()==volName.Index(chName2)+chName2.Length())))){
1421 volName.Remove(0,volName.Last('/')+1);
1422 if (volName.Contains("GM")) {
1423 // alignMat->Print("NULL");
1424 alignMat->SetCorrMatrix(mChCorrMatrix);
1425 } else if (volName.Contains("DE")) {
1426 // alignMat->Print("NULL");
1427 alignMat->SetCorrMatrix(mDECorrMatrix);