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010eb601 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/* $Id$ */
17
18//-----------------------------------------------------------------------------
c25af45b 19/// \class AliMUONAlignment
56218672 20/// Alignment class for the ALICE DiMuon spectrometer
010eb601 21///
56218672 22/// MUON specific alignment class which interface to AliMillepede.
010eb601 23/// For each track ProcessTrack calculates the local and global derivatives
96ebe67e 24/// at each cluster and fill the corresponding local equations. Provide methods
56218672 25/// for fixing or constraining detection elements for best results.
010eb601 26///
27/// \author Bruce Becker, Javier Castillo
28//-----------------------------------------------------------------------------
29
30#include "AliMUONAlignment.h"
31#include "AliMUONTrack.h"
010eb601 32#include "AliMUONTrackParam.h"
96ebe67e 33#include "AliMUONVCluster.h"
010eb601 34#include "AliMUONGeometryTransformer.h"
35#include "AliMUONGeometryModuleTransformer.h"
36#include "AliMUONGeometryDetElement.h"
010eb601 37#include "AliMUONGeometryBuilder.h"
010eb601 38#include "AliMillepede.h"
39
8c95578a 40#include "AliMpExMap.h"
630711ed 41#include "AliMpExMapIterator.h"
8c95578a 42
4818a9b7 43#include "AliAlignObjMatrix.h"
8c95578a 44#include "AliLog.h"
45
2060b217 46#include "TMath.h"
4818a9b7 47#include "TMatrixDSym.h"
ce8cd162 48#include "TClonesArray.h"
8c95578a 49
78649106 50/// \cond CLASSIMP
010eb601 51ClassImp(AliMUONAlignment)
78649106 52/// \endcond
53
56218672 54//_____________________________________________________________________
55// static variables
56Int_t AliMUONAlignment::fgNDetElem = 4*2+4*2+18*2+26*2+26*2;
57Int_t AliMUONAlignment::fgNDetElemCh[10] = {4,4,4,4,18,18,26,26,26,26};
58Int_t AliMUONAlignment::fgSNDetElemCh[10] = {4,8,12,16,34,52,78,104,130,156};
59Int_t AliMUONAlignment::fgNParCh = 4;
60Int_t AliMUONAlignment::fgNTrkMod = 16;
61Int_t AliMUONAlignment::fgNCh = 10;
62Int_t AliMUONAlignment::fgNSt = 5;
63
64//_____________________________________________________________________
65AliMUONAlignment::AliMUONAlignment()
8395bff1 66 : TObject(),
67 fBFieldOn(kTRUE),
56218672 68 fStartFac(256.),
69 fResCutInitial(100.),
8395bff1 70 fResCut(100.),
71 fMillepede(0),
8395bff1 72 fTrack(0),
96ebe67e 73 fCluster(0),
8395bff1 74 fTrackParam(0),
75 fNGlobal(fgNDetElem*fgNParCh),
76 fNLocal(4),
77 fNStdDev(3),
78 fDetElemId(0),
79 fDetElemNumber(0),
80 fPhi(0.),
81 fCosPhi(1.),
82 fSinPhi(0.),
56218672 83 fTrackRecord(),
8395bff1 84 fTransform(0)
010eb601 85{
56218672 86
87 fSigma[0] = 1.5e-1;
010eb601 88 fSigma[1] = 1.0e-2;
010eb601 89
64e2c144 90 AliInfo(Form("fSigma[0]: %f\t fSigma[1]: %f",fSigma[0],fSigma[1]));
91
723b0b5b 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;
56218672 94
010eb601 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));
96
97 fMillepede = new AliMillepede();
98
99 Init(fNGlobal, fNLocal, fNStdDev);
100
101 ResetLocalEquation();
102 AliInfo("Parameters initialized to zero");
103
104}
105
d9426e3f 106//_____________________________________________________________________
107AliMUONAlignment::AliMUONAlignment(TRootIOCtor* /*dummy*/)
108: TObject(),
109fBFieldOn(kFALSE),
110fStartFac(0.),
111fResCutInitial(0.),
112fResCut(0.),
113fMillepede(0),
114fTrack(0),
115fCluster(0),
116fTrackParam(0),
117fNGlobal(0),
118fNLocal(0),
119fNStdDev(0),
120fDetElemId(0),
121fDetElemNumber(0),
122fPhi(0.),
123fCosPhi(0.),
124fSinPhi(0.),
125fTrackRecord(),
126fTransform(0)
127{
7fb4730e 128 /// Root IO constructor
129 ResetConstraints();
130 for (Int_t iCh=0; iCh<10; iCh++) {
131 fChOnOff[iCh] = kFALSE;
132 }
133 fSpecLROnOff[0] = kFALSE; fSpecLROnOff[1] = kFALSE;
134 for (Int_t iDoF=0; iDoF<4; iDoF++) {
135 fDoF[iDoF] = kFALSE;
136 fAllowVar[iDoF] = kFALSE;
137 }
138 for (Int_t i=0; i<3; i++) {
139 fClustPos[i] = 0;
140 fClustPosLoc[i] = 0;
141 fTrackPos0[i] = 0;
142 fTrackPos[i] = 0;
143 fTrackPosLoc[i] = 0;
144 }
145 fTrackSlope0[0]=0; fTrackSlope0[1]=0;
146 fTrackSlope[0]=0; fTrackSlope[1]=0;
147 fMeas[0]=0; fMeas[1]=0;
148 fSigma[0]=0; fSigma[1]=0;
149 for (Int_t iLPar=0; iLPar<4; iLPar++) {
150 fLocalDerivatives[iLPar]=0;
151 }
152 for (Int_t iGPar=0; iGPar<624; iGPar++) {
153 fLocalDerivatives[iGPar]=0;
154 }
d9426e3f 155}
156
56218672 157//_____________________________________________________________________
158AliMUONAlignment::~AliMUONAlignment()
159{}
010eb601 160
56218672 161//_____________________________________________________________________
162void AliMUONAlignment::Init(
163 Int_t nGlobal, /* number of global paramers */
164 Int_t nLocal, /* number of local parameters */
165 Int_t nStdDev /* std dev cut */ )
010eb601 166{
167 /// Initialization of AliMillepede. Fix parameters, define constraints ...
168 fMillepede->InitMille(nGlobal,nLocal,nStdDev,fResCut,fResCutInitial);
169
56218672 170 // Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
171 // Bool_t bChOnOff[10] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
172 // Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE};
010eb601 173
56218672 174 // AllowVariations(bChOnOff);
010eb601 175
176 // Fix parameters or add constraints here
56218672 177 // for (Int_t iSt=0; iSt<5; iSt++)
178 // { if (!bStOnOff[iSt]) FixStation(iSt+1); }
179
180 // for (Int_t iCh=0; iCh<10; iCh++)
181 // { if (!bChOnOff[iCh]) FixChamber(iCh+1); }
010eb601 182
d8ad38e5 183// FixHalfSpectrometer(bChOnOff,bSpecLROnOff);
3b2890be 184
010eb601 185 ResetConstraints();
56218672 186
3b2890be 187 // Define global constrains to be applied
188 // X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY
189 Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
190 Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE};
191 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR,bSpecLROnOff);
192
193 // Other possible way to add constrains
010eb601 194 bVarXYT[0] = kFALSE; bVarXYT[1] = kFALSE; bVarXYT[2] = kTRUE;
195 bDetTLBR[0] = kFALSE; bDetTLBR[1] = kTRUE; bDetTLBR[2] = kFALSE; bDetTLBR[3] = kFALSE;
56218672 196 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR);
3b2890be 197
198 bVarXYT[0] = kTRUE; bVarXYT[1] = kTRUE; bVarXYT[2] = kFALSE;
199 // AddConstraints(bStOnOff,bVarXYT);
56218672 200
010eb601 201 // Set iterations
56218672 202 if (fStartFac>1) fMillepede->SetIterations(fStartFac);
010eb601 203}
204
56218672 205//_____________________________________________________________________
206void AliMUONAlignment::FixStation(Int_t iSt)
207{
010eb601 208 /// Fix all detection elements of station iSt
56218672 209 Int_t iDetElemFirst = (iSt>1) ? fgSNDetElemCh[2*(iSt-1)-1] : 0;
210 Int_t iDetElemLast = fgSNDetElemCh[2*(iSt)-1];
211 for (Int_t i = iDetElemFirst; i < iDetElemLast; i++)
212 {
010eb601 213 FixParameter(i*fgNParCh+0, 0.0);
214 FixParameter(i*fgNParCh+1, 0.0);
215 FixParameter(i*fgNParCh+2, 0.0);
723b0b5b 216 FixParameter(i*fgNParCh+3, 0.0);
010eb601 217 }
56218672 218
010eb601 219}
220
56218672 221//_____________________________________________________________________
222void AliMUONAlignment::FixChamber(Int_t iCh)
223{
d8ad38e5 224 /// Fix all detection elements of chamber iCh
56218672 225 Int_t iDetElemFirst = (iCh>1) ? fgSNDetElemCh[iCh-2] : 0;
226 Int_t iDetElemLast = fgSNDetElemCh[iCh-1];
227 for (Int_t i = iDetElemFirst; i < iDetElemLast; i++)
228 {
d8ad38e5 229 FixParameter(i*fgNParCh+0, 0.0);
230 FixParameter(i*fgNParCh+1, 0.0);
231 FixParameter(i*fgNParCh+2, 0.0);
723b0b5b 232 FixParameter(i*fgNParCh+3, 0.0);
233 }
234}
235
56218672 236//_____________________________________________________________________
237void AliMUONAlignment::FixDetElem(Int_t iDetElemId, TString sVarXYT)
238{
239
723b0b5b 240 /// Fix a given detection element
241 Int_t iDetElemNumber = iDetElemId%100;
56218672 242 for (int iCh=0; iCh<iDetElemId/100-1; iCh++)
243 {
723b0b5b 244 iDetElemNumber += fgNDetElemCh[iCh];
245 }
56218672 246
247 if (sVarXYT.Contains("X"))
248 {
249 // X constraint
723b0b5b 250 FixParameter(iDetElemNumber*fgNParCh+0, 0.0);
251 }
56218672 252
253 if (sVarXYT.Contains("Y"))
254 {
255 // Y constraint
723b0b5b 256 FixParameter(iDetElemNumber*fgNParCh+1, 0.0);
257 }
56218672 258
259 if (sVarXYT.Contains("T"))
260 {
261 // T constraint
723b0b5b 262 FixParameter(iDetElemNumber*fgNParCh+2, 0.0);
263 }
56218672 264
265 if (sVarXYT.Contains("Z"))
266 {
267 // T constraint
723b0b5b 268 FixParameter(iDetElemNumber*fgNParCh+3, 0.0);
d8ad38e5 269 }
56218672 270
d8ad38e5 271}
272
56218672 273//_____________________________________________________________________
274void AliMUONAlignment::FixHalfSpectrometer(const Bool_t *lChOnOff, const Bool_t *lSpecLROnOff)
275{
276
3b2890be 277 /// Fix left or right detector
56218672 278 for (Int_t i = 0; i < fgNDetElem; i++)
279 {
280
3b2890be 281 Int_t iCh=0;
56218672 282 for (iCh=1; iCh<=fgNCh; iCh++)
283 { if (i<fgSNDetElemCh[iCh-1]) break; }
284
285 if (lChOnOff[iCh-1])
286 {
287
3b2890be 288 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
56218672 289 if (iCh>=1 && iCh<=4)
290 {
291
292 if ((lDetElemNumber==1 || lDetElemNumber==2) && !lSpecLROnOff[0])
293 {
294 // From track crossings
295 FixParameter(i*fgNParCh+0, 0.0);
296 FixParameter(i*fgNParCh+1, 0.0);
297 FixParameter(i*fgNParCh+2, 0.0);
298 FixParameter(i*fgNParCh+3, 0.0);
299 }
300
301 if ((lDetElemNumber==0 || lDetElemNumber==3) && !lSpecLROnOff[1])
302 {
303 // From track crossings
304 FixParameter(i*fgNParCh+0, 0.0);
305 FixParameter(i*fgNParCh+1, 0.0);
306 FixParameter(i*fgNParCh+2, 0.0);
307 FixParameter(i*fgNParCh+3, 0.0);
308 }
309
3b2890be 310 }
56218672 311
312 if (iCh>=5 && iCh<=6)
313 {
314
315 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && !lSpecLROnOff[0])
316 {
317 FixParameter(i*fgNParCh+0, 0.0);
318 FixParameter(i*fgNParCh+1, 0.0);
319 FixParameter(i*fgNParCh+2, 0.0);
320 FixParameter(i*fgNParCh+3, 0.0);
321 }
322
323 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
324 (lDetElemNumber>=14&&lDetElemNumber<=17)) && !lSpecLROnOff[1])
325 {
326
327 FixParameter(i*fgNParCh+0, 0.0);
328 FixParameter(i*fgNParCh+1, 0.0);
329 FixParameter(i*fgNParCh+2, 0.0);
330 FixParameter(i*fgNParCh+3, 0.0);
331 }
332
3b2890be 333 }
56218672 334
335 if (iCh>=7 && iCh<=10)
336 {
337
338 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && !lSpecLROnOff[0])
339 {
340 FixParameter(i*fgNParCh+0, 0.0);
341 FixParameter(i*fgNParCh+1, 0.0);
342 FixParameter(i*fgNParCh+2, 0.0);
343 FixParameter(i*fgNParCh+3, 0.0);
344 }
345
346 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
347 (lDetElemNumber>=20&&lDetElemNumber<=25)) && !lSpecLROnOff[1])
348 {
349 FixParameter(i*fgNParCh+0, 0.0);
350 FixParameter(i*fgNParCh+1, 0.0);
351 FixParameter(i*fgNParCh+2, 0.0);
352 FixParameter(i*fgNParCh+3, 0.0);
353 }
354
3b2890be 355 }
56218672 356
3b2890be 357 }
56218672 358
3b2890be 359 }
56218672 360
3b2890be 361}
362
56218672 363//______________________________________________________________________
364void AliMUONAlignment::SetNonLinear(const Bool_t *lChOnOff, const Bool_t *lVarXYT)
365{
366
d8ad38e5 367 /// Set non linear parameter flag selected chambers and degrees of freedom
56218672 368 for (Int_t i = 0; i < fgNDetElem; i++)
369 {
370
010eb601 371 Int_t iCh=0;
56218672 372 for (iCh=1; iCh<=fgNCh; iCh++)
373 { if (i<fgSNDetElemCh[iCh-1]) break; }
374
375 if (lChOnOff[iCh-1])
376 {
377
378 if (lVarXYT[0])
379 {
380 // X constraint
381 SetNonLinear(i*fgNParCh+0);
010eb601 382 }
56218672 383
384 if (lVarXYT[1])
385 {
386 // Y constraint
387 SetNonLinear(i*fgNParCh+1);
010eb601 388 }
56218672 389
390 if (lVarXYT[2])
391 {
392 // T constraint
393 SetNonLinear(i*fgNParCh+2);
010eb601 394 }
56218672 395
396 if (lVarXYT[3])
397 {
398 // Z constraint
399 SetNonLinear(i*fgNParCh+3);
723b0b5b 400 }
56218672 401
010eb601 402 }
56218672 403
010eb601 404 }
56218672 405
010eb601 406}
407
56218672 408//______________________________________________________________________
409void AliMUONAlignment::AddConstraints(const Bool_t *lChOnOff, const Bool_t *lVarXYT)
410{
411
412 /// Add constraint equations for selected chambers and degrees of freedom
413 for (Int_t i = 0; i < fgNDetElem; i++)
414 {
415
010eb601 416 Int_t iCh=0;
56218672 417 for (iCh=1; iCh<=fgNCh; iCh++)
418 {
010eb601 419 if (i<fgSNDetElemCh[iCh-1]) break;
420 }
56218672 421
422 if (lChOnOff[iCh-1])
423 {
424 if (lVarXYT[0])
425 {
426 // X constraint
427 fConstraintX[i*fgNParCh+0]=1.0;
010eb601 428 }
56218672 429
430 if (lVarXYT[1])
431 {
432 // Y constraint
433 fConstraintY[i*fgNParCh+1]=1.0;
010eb601 434 }
56218672 435
436 if (lVarXYT[2])
437 {
438 // T constraint
439 fConstraintP[i*fgNParCh+2]=1.0;
010eb601 440 }
56218672 441 // if (lVarXYT[3]) { // Z constraint
442 // fConstraintP[i*fgNParCh+3]=1.0;
443 // }
444
010eb601 445 }
446 }
56218672 447
448 if (lVarXYT[0])
449 {
450 // X constraint
010eb601 451 AddConstraint(fConstraintX,0.0);
452 }
56218672 453
454 if (lVarXYT[1])
455 {
456 // Y constraint
010eb601 457 AddConstraint(fConstraintY,0.0);
458 }
56218672 459
460 if (lVarXYT[2])
461 {
462 // T constraint
010eb601 463 AddConstraint(fConstraintP,0.0);
464 }
56218672 465
723b0b5b 466// if (lVarXYT[3]) { // Z constraint
467// AddConstraint(fConstraintP,0.0);
468// }
010eb601 469}
470
56218672 471//______________________________________________________________________
472void AliMUONAlignment::AddConstraints(const Bool_t *lChOnOff, const Bool_t *lVarXYT, const Bool_t *lDetTLBR, const Bool_t *lSpecLROnOff)
473{
474 /// Add constraint equations for selected chambers, degrees of freedom and detector half
3b2890be 475 Double_t lDetElemLocX = 0.;
476 Double_t lDetElemLocY = 0.;
477 Double_t lDetElemLocZ = 0.;
478 Double_t lDetElemGloX = 0.;
479 Double_t lDetElemGloY = 0.;
480 Double_t lDetElemGloZ = 0.;
481 Double_t lMeanY = 0.;
482 Double_t lSigmaY = 0.;
483 Double_t lMeanZ = 0.;
484 Double_t lSigmaZ = 0.;
485 Int_t lNDetElem = 0;
56218672 486 for (Int_t i = 0; i < fgNDetElem; i++)
487 {
488
010eb601 489 Int_t iCh=0;
490 for (iCh=1; iCh<=fgNCh; iCh++){
491 if (i<fgSNDetElemCh[iCh-1]) break;
492 }
56218672 493 if (lChOnOff[iCh-1]){
3b2890be 494 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
495 Int_t lDetElemId = iCh*100+lDetElemNumber;
496 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
56218672 497 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
3b2890be 498 if (iCh>=1 && iCh<=4){
56218672 499 if ((lDetElemNumber==1 || lDetElemNumber==2) && lSpecLROnOff[0]){ // From track crossings
500 lMeanY += lDetElemGloY;
501 lSigmaY += lDetElemGloY*lDetElemGloY;
502 lMeanZ += lDetElemGloZ;
503 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
504 lNDetElem++;
505 }
506 if ((lDetElemNumber==0 || lDetElemNumber==3) && lSpecLROnOff[1]){ // From track crossings
507 lMeanY += lDetElemGloY;
508 lSigmaY += lDetElemGloY*lDetElemGloY;
509 lMeanZ += lDetElemGloZ;
510 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
511 lNDetElem++;
512 }
3b2890be 513 }
514 if (iCh>=5 && iCh<=6){
56218672 515 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && lSpecLROnOff[0]){
516 lMeanY += lDetElemGloY;
517 lSigmaY += lDetElemGloY*lDetElemGloY;
518 lMeanZ += lDetElemGloZ;
519 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
520 lNDetElem++;
521 }
522 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
523 (lDetElemNumber>=14&&lDetElemNumber<=17)) && lSpecLROnOff[1]){
524 lMeanY += lDetElemGloY;
525 lSigmaY += lDetElemGloY*lDetElemGloY;
526 lMeanZ += lDetElemGloZ;
527 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
528 lNDetElem++;
529 }
3b2890be 530 }
531 if (iCh>=7 && iCh<=10){
56218672 532 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && lSpecLROnOff[0]){
533 lMeanY += lDetElemGloY;
534 lSigmaY += lDetElemGloY*lDetElemGloY;
535 lMeanZ += lDetElemGloZ;
536 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
537 lNDetElem++;
538 }
539 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
540 (lDetElemNumber>=20&&lDetElemNumber<=25)) && lSpecLROnOff[1]){
541 lMeanY += lDetElemGloY;
542 lSigmaY += lDetElemGloY*lDetElemGloY;
543 lMeanZ += lDetElemGloZ;
544 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
545 lNDetElem++;
546 }
3b2890be 547 }
548 }
549 }
877567ef 550 if (lNDetElem) {
551 lMeanY /= lNDetElem;
552 lSigmaY /= lNDetElem;
553 lSigmaY = TMath::Sqrt(lSigmaY-lMeanY*lMeanY);
554 lMeanZ /= lNDetElem;
555 lSigmaZ /= lNDetElem;
556 lSigmaZ = TMath::Sqrt(lSigmaZ-lMeanZ*lMeanZ);
557 AliInfo(Form("Used %i DetElem, MeanZ= %f , SigmaZ= %f", lNDetElem,lMeanZ,lSigmaZ));
558 } else {
559 AliError("No detection elements to constrain!!!");
560 return;
561 }
562
56218672 563 for (Int_t i = 0; i < fgNDetElem; i++){
3b2890be 564 Int_t iCh=0;
565 for (iCh=1; iCh<=fgNCh; iCh++){
566 if (i<fgSNDetElemCh[iCh-1]) break;
567 }
d8ad38e5 568 if (lChOnOff[iCh-1]){
3b2890be 569 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
570 Int_t lDetElemId = iCh*100+lDetElemNumber;
571 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
56218672 572 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
010eb601 573 if (lVarXYT[0]) { // X constraint
56218672 574 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXT,0); // Top half
575 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXL,0); // Left half
576 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXB,0); // Bottom half
577 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXR,0); // Right half
010eb601 578 }
3b2890be 579 if (lVarXYT[1]) { // Y constraint
56218672 580 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYT,1); // Top half
581 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYL,1); // Left half
582 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYB,1); // Bottom half
583 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYR,1); // Right half
010eb601 584 }
3b2890be 585 if (lVarXYT[2]) { // P constraint
56218672 586 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPT,2); // Top half
587 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPL,2); // Left half
588 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPB,2); // Bottom half
589 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPR,2); // Right half
010eb601 590 }
3b2890be 591 if (lVarXYT[3]) { // X-Z shearing
56218672 592 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXZT,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
593 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXZL,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
594 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXZB,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
595 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXZR,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
3b2890be 596 }
597 if (lVarXYT[4]) { // Y-Z shearing
56218672 598 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYZT,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
599 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYZL,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
600 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYZB,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
601 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYZR,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
3b2890be 602 }
603 if (lVarXYT[5]) { // P-Z rotation
56218672 604 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPZT,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
605 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPZL,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
606 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPZB,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
607 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPZR,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
3b2890be 608 }
609 if (lVarXYT[6]) { // X-Y shearing
56218672 610 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXYT,0,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
611 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXYL,0,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
612 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXYB,0,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
613 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXYR,0,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
3b2890be 614 }
615 if (lVarXYT[7]) { // Y-Y scaling
56218672 616 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYYT,1,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
617 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYYL,1,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
618 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYYB,1,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
619 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYYR,1,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
3b2890be 620 }
621 if (lVarXYT[8]) { // P-Y rotation
56218672 622 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPYT,2,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
623 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPYL,2,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
624 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPYB,2,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
625 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPYR,2,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
3b2890be 626 }
010eb601 627 }
628 }
629 if (lVarXYT[0]) { // X constraint
630 if (lDetTLBR[0]) AddConstraint(fConstraintXT,0.0); // Top half
631 if (lDetTLBR[1]) AddConstraint(fConstraintXL,0.0); // Left half
632 if (lDetTLBR[2]) AddConstraint(fConstraintXB,0.0); // Bottom half
633 if (lDetTLBR[3]) AddConstraint(fConstraintXR,0.0); // Right half
634 }
635 if (lVarXYT[1]) { // Y constraint
636 if (lDetTLBR[0]) AddConstraint(fConstraintYT,0.0); // Top half
637 if (lDetTLBR[1]) AddConstraint(fConstraintYL,0.0); // Left half
638 if (lDetTLBR[2]) AddConstraint(fConstraintYB,0.0); // Bottom half
639 if (lDetTLBR[3]) AddConstraint(fConstraintYR,0.0); // Right half
640 }
641 if (lVarXYT[2]) { // T constraint
642 if (lDetTLBR[0]) AddConstraint(fConstraintPT,0.0); // Top half
643 if (lDetTLBR[1]) AddConstraint(fConstraintPL,0.0); // Left half
644 if (lDetTLBR[2]) AddConstraint(fConstraintPB,0.0); // Bottom half
645 if (lDetTLBR[3]) AddConstraint(fConstraintPR,0.0); // Right half
646 }
3b2890be 647 if (lVarXYT[3]) { // X-Z constraint
648 if (lDetTLBR[0]) AddConstraint(fConstraintXZT,0.0); // Top half
649 if (lDetTLBR[1]) AddConstraint(fConstraintXZL,0.0); // Left half
650 if (lDetTLBR[2]) AddConstraint(fConstraintXZB,0.0); // Bottom half
651 if (lDetTLBR[3]) AddConstraint(fConstraintXZR,0.0); // Right half
652 }
653 if (lVarXYT[4]) { // Y-Z constraint
654 if (lDetTLBR[0]) AddConstraint(fConstraintYZT,0.0); // Top half
655 if (lDetTLBR[1]) AddConstraint(fConstraintYZL,0.0); // Left half
656 if (lDetTLBR[2]) AddConstraint(fConstraintYZB,0.0); // Bottom half
657 if (lDetTLBR[3]) AddConstraint(fConstraintYZR,0.0); // Right half
658 }
659 if (lVarXYT[5]) { // P-Z constraint
660 if (lDetTLBR[0]) AddConstraint(fConstraintPZT,0.0); // Top half
661 if (lDetTLBR[1]) AddConstraint(fConstraintPZL,0.0); // Left half
662 if (lDetTLBR[2]) AddConstraint(fConstraintPZB,0.0); // Bottom half
663 if (lDetTLBR[3]) AddConstraint(fConstraintPZR,0.0); // Right half
664 }
665 if (lVarXYT[6]) { // X-Y constraint
666 if (lDetTLBR[0]) AddConstraint(fConstraintXYT,0.0); // Top half
667 if (lDetTLBR[1]) AddConstraint(fConstraintXYL,0.0); // Left half
668 if (lDetTLBR[2]) AddConstraint(fConstraintXYB,0.0); // Bottom half
669 if (lDetTLBR[3]) AddConstraint(fConstraintXYR,0.0); // Right half
670 }
671 if (lVarXYT[7]) { // Y-Y constraint
672 if (lDetTLBR[0]) AddConstraint(fConstraintYYT,0.0); // Top half
673 if (lDetTLBR[1]) AddConstraint(fConstraintYYL,0.0); // Left half
674 if (lDetTLBR[2]) AddConstraint(fConstraintYYB,0.0); // Bottom half
675 if (lDetTLBR[3]) AddConstraint(fConstraintYYR,0.0); // Right half
676 }
677 if (lVarXYT[8]) { // P-Y constraint
678 if (lDetTLBR[0]) AddConstraint(fConstraintPYT,0.0); // Top half
679 if (lDetTLBR[1]) AddConstraint(fConstraintPYL,0.0); // Left half
680 if (lDetTLBR[2]) AddConstraint(fConstraintPYB,0.0); // Bottom half
681 if (lDetTLBR[3]) AddConstraint(fConstraintPYR,0.0); // Right half
682 }
010eb601 683}
684
a6ec842d 685void AliMUONAlignment::ConstrainT(Int_t lDetElem, Int_t lCh, Double_t *lConstraintT, Int_t iVar, Double_t /*lWeight*/) const{
010eb601 686 /// Set constrain equation for top half of spectrometer
687 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
688 if (lCh>=1 && lCh<=4){
689 if (lDetElemNumber==0 || lDetElemNumber==1){ // From track crossings
690 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
691 }
692 }
693 if (lCh>=5 && lCh<=6){
694 if (lDetElemNumber>=0&&lDetElemNumber<=9){
695 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
696 }
697 }
698 if (lCh>=7 && lCh<=10){
699 if (lDetElemNumber>=0&&lDetElemNumber<=13){
700 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
701 }
702 }
703}
704
56218672 705//______________________________________________________________________
a6ec842d 706void AliMUONAlignment::ConstrainL(Int_t lDetElem, Int_t lCh, Double_t *lConstraintL, Int_t iVar, Double_t lWeight) const{
010eb601 707 /// Set constrain equation for left half of spectrometer
708 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
709 if (lCh>=1 && lCh<=4){
710 if (lDetElemNumber==1 || lDetElemNumber==2){ // From track crossings
3b2890be 711 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
010eb601 712 }
713 }
714 if (lCh>=5 && lCh<=6){
715 if (lDetElemNumber>=5&&lDetElemNumber<=13){
3b2890be 716 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
010eb601 717 }
718 }
719 if (lCh>=7 && lCh<=10){
720 if (lDetElemNumber>=7&&lDetElemNumber<=19){
3b2890be 721 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
010eb601 722 }
723 }
724}
725
56218672 726//______________________________________________________________________
a6ec842d 727void AliMUONAlignment::ConstrainB(Int_t lDetElem, Int_t lCh, Double_t *lConstraintB, Int_t iVar, Double_t /*lWeight*/) const{
010eb601 728 /// Set constrain equation for bottom half of spectrometer
729 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
730 if (lCh>=1 && lCh<=4){
3b2890be 731 if (lDetElemNumber==2 || lDetElemNumber==3){ // From track crossings
010eb601 732 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
733 }
734 }
735 if (lCh>=5 && lCh<=6){
56218672 736 if ((lDetElemNumber>=9&&lDetElemNumber<=17) ||
737 (lDetElemNumber==0)){
010eb601 738 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
739 }
740 }
741 if (lCh>=7 && lCh<=10){
56218672 742 if ((lDetElemNumber>=13&&lDetElemNumber<=25) ||
743 (lDetElemNumber==0)){
010eb601 744 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
745 }
746 }
747}
748
56218672 749//______________________________________________________________________
a6ec842d 750void AliMUONAlignment::ConstrainR(Int_t lDetElem, Int_t lCh, Double_t *lConstraintR, Int_t iVar, Double_t lWeight) const{
010eb601 751 /// Set constrain equation for right half of spectrometer
752 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
753 if (lCh>=1 && lCh<=4){
3b2890be 754 if (lDetElemNumber==0 || lDetElemNumber==3){ // From track crossings
755 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
010eb601 756 }
757 }
758 if (lCh>=5 && lCh<=6){
56218672 759 if ((lDetElemNumber>=0&&lDetElemNumber<=4) ||
760 (lDetElemNumber>=14&&lDetElemNumber<=17)){
3b2890be 761 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
010eb601 762 }
763 }
764 if (lCh>=7 && lCh<=10){
56218672 765 if ((lDetElemNumber>=0&&lDetElemNumber<=6) ||
766 (lDetElemNumber>=20&&lDetElemNumber<=25)){
3b2890be 767 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
010eb601 768 }
769 }
770}
771
56218672 772//______________________________________________________________________
010eb601 773void AliMUONAlignment::ResetConstraints(){
774 /// Reset all constraint equations
56218672 775 for (Int_t i = 0; i < fgNDetElem; i++){
3b2890be 776 fConstraintX[i*fgNParCh+0]=0.0;
777 fConstraintX[i*fgNParCh+1]=0.0;
778 fConstraintX[i*fgNParCh+2]=0.0;
779 fConstraintY[i*fgNParCh+0]=0.0;
780 fConstraintY[i*fgNParCh+1]=0.0;
781 fConstraintY[i*fgNParCh+2]=0.0;
782 fConstraintP[i*fgNParCh+0]=0.0;
783 fConstraintP[i*fgNParCh+1]=0.0;
784 fConstraintP[i*fgNParCh+2]=0.0;
785 fConstraintXT[i*fgNParCh+0]=0.0;
786 fConstraintXT[i*fgNParCh+1]=0.0;
787 fConstraintXT[i*fgNParCh+2]=0.0;
788 fConstraintYT[i*fgNParCh+0]=0.0;
789 fConstraintYT[i*fgNParCh+1]=0.0;
790 fConstraintYT[i*fgNParCh+2]=0.0;
791 fConstraintPT[i*fgNParCh+0]=0.0;
792 fConstraintPT[i*fgNParCh+1]=0.0;
793 fConstraintPT[i*fgNParCh+2]=0.0;
794 fConstraintXZT[i*fgNParCh+0]=0.0;
795 fConstraintXZT[i*fgNParCh+1]=0.0;
796 fConstraintXZT[i*fgNParCh+2]=0.0;
797 fConstraintYZT[i*fgNParCh+0]=0.0;
798 fConstraintYZT[i*fgNParCh+1]=0.0;
799 fConstraintYZT[i*fgNParCh+2]=0.0;
800 fConstraintPZT[i*fgNParCh+0]=0.0;
801 fConstraintPZT[i*fgNParCh+1]=0.0;
802 fConstraintPZT[i*fgNParCh+2]=0.0;
803 fConstraintXYT[i*fgNParCh+0]=0.0;
804 fConstraintXYT[i*fgNParCh+1]=0.0;
805 fConstraintXYT[i*fgNParCh+2]=0.0;
806 fConstraintYYT[i*fgNParCh+0]=0.0;
807 fConstraintYYT[i*fgNParCh+1]=0.0;
808 fConstraintYYT[i*fgNParCh+2]=0.0;
809 fConstraintPYT[i*fgNParCh+0]=0.0;
810 fConstraintPYT[i*fgNParCh+1]=0.0;
811 fConstraintPYT[i*fgNParCh+2]=0.0;
812 fConstraintXL[i*fgNParCh+0]=0.0;
813 fConstraintXL[i*fgNParCh+1]=0.0;
814 fConstraintXL[i*fgNParCh+2]=0.0;
815 fConstraintYL[i*fgNParCh+0]=0.0;
816 fConstraintYL[i*fgNParCh+1]=0.0;
817 fConstraintYL[i*fgNParCh+2]=0.0;
818 fConstraintPL[i*fgNParCh+0]=0.0;
819 fConstraintPL[i*fgNParCh+1]=0.0;
820 fConstraintPL[i*fgNParCh+2]=0.0;
821 fConstraintXZL[i*fgNParCh+0]=0.0;
822 fConstraintXZL[i*fgNParCh+1]=0.0;
823 fConstraintXZL[i*fgNParCh+2]=0.0;
824 fConstraintYZL[i*fgNParCh+0]=0.0;
825 fConstraintYZL[i*fgNParCh+1]=0.0;
826 fConstraintYZL[i*fgNParCh+2]=0.0;
827 fConstraintPZL[i*fgNParCh+0]=0.0;
828 fConstraintPZL[i*fgNParCh+1]=0.0;
829 fConstraintPZL[i*fgNParCh+2]=0.0;
830 fConstraintXYL[i*fgNParCh+0]=0.0;
831 fConstraintXYL[i*fgNParCh+1]=0.0;
832 fConstraintXYL[i*fgNParCh+2]=0.0;
833 fConstraintYYL[i*fgNParCh+0]=0.0;
834 fConstraintYYL[i*fgNParCh+1]=0.0;
835 fConstraintYYL[i*fgNParCh+2]=0.0;
836 fConstraintPYL[i*fgNParCh+0]=0.0;
837 fConstraintPYL[i*fgNParCh+1]=0.0;
838 fConstraintPYL[i*fgNParCh+2]=0.0;
839 fConstraintXB[i*fgNParCh+0]=0.0;
840 fConstraintXB[i*fgNParCh+1]=0.0;
841 fConstraintXB[i*fgNParCh+2]=0.0;
842 fConstraintYB[i*fgNParCh+0]=0.0;
843 fConstraintYB[i*fgNParCh+1]=0.0;
844 fConstraintYB[i*fgNParCh+2]=0.0;
845 fConstraintPB[i*fgNParCh+0]=0.0;
846 fConstraintPB[i*fgNParCh+1]=0.0;
847 fConstraintPB[i*fgNParCh+2]=0.0;
848 fConstraintXZB[i*fgNParCh+0]=0.0;
849 fConstraintXZB[i*fgNParCh+1]=0.0;
850 fConstraintXZB[i*fgNParCh+2]=0.0;
851 fConstraintYZB[i*fgNParCh+0]=0.0;
852 fConstraintYZB[i*fgNParCh+1]=0.0;
853 fConstraintYZB[i*fgNParCh+2]=0.0;
854 fConstraintPZB[i*fgNParCh+0]=0.0;
855 fConstraintPZB[i*fgNParCh+1]=0.0;
856 fConstraintPZB[i*fgNParCh+2]=0.0;
857 fConstraintXYB[i*fgNParCh+0]=0.0;
858 fConstraintXYB[i*fgNParCh+1]=0.0;
859 fConstraintXYB[i*fgNParCh+2]=0.0;
860 fConstraintYYB[i*fgNParCh+0]=0.0;
861 fConstraintYYB[i*fgNParCh+1]=0.0;
862 fConstraintYYB[i*fgNParCh+2]=0.0;
863 fConstraintPYB[i*fgNParCh+0]=0.0;
864 fConstraintPYB[i*fgNParCh+1]=0.0;
865 fConstraintPYB[i*fgNParCh+2]=0.0;
866 fConstraintXR[i*fgNParCh+0]=0.0;
867 fConstraintXR[i*fgNParCh+1]=0.0;
868 fConstraintXR[i*fgNParCh+2]=0.0;
869 fConstraintYR[i*fgNParCh+0]=0.0;
870 fConstraintYR[i*fgNParCh+1]=0.0;
871 fConstraintYR[i*fgNParCh+2]=0.0;
872 fConstraintPR[i*fgNParCh+0]=0.0;
873 fConstraintPR[i*fgNParCh+1]=0.0;
874 fConstraintPR[i*fgNParCh+2]=0.0;
875 fConstraintXZR[i*fgNParCh+0]=0.0;
876 fConstraintXZR[i*fgNParCh+1]=0.0;
877 fConstraintXZR[i*fgNParCh+2]=0.0;
878 fConstraintYZR[i*fgNParCh+0]=0.0;
879 fConstraintYZR[i*fgNParCh+1]=0.0;
880 fConstraintYZR[i*fgNParCh+2]=0.0;
881 fConstraintPZR[i*fgNParCh+0]=0.0;
882 fConstraintPZR[i*fgNParCh+1]=0.0;
883 fConstraintPZR[i*fgNParCh+2]=0.0;
884 fConstraintPZR[i*fgNParCh+0]=0.0;
885 fConstraintPZR[i*fgNParCh+1]=0.0;
886 fConstraintPZR[i*fgNParCh+2]=0.0;
887 fConstraintXYR[i*fgNParCh+0]=0.0;
888 fConstraintXYR[i*fgNParCh+1]=0.0;
889 fConstraintXYR[i*fgNParCh+2]=0.0;
890 fConstraintYYR[i*fgNParCh+0]=0.0;
891 fConstraintYYR[i*fgNParCh+1]=0.0;
892 fConstraintYYR[i*fgNParCh+2]=0.0;
893 fConstraintPYR[i*fgNParCh+0]=0.0;
894 fConstraintPYR[i*fgNParCh+1]=0.0;
895 fConstraintPYR[i*fgNParCh+2]=0.0;
010eb601 896 }
897}
898
56218672 899//______________________________________________________________________
010eb601 900void AliMUONAlignment::AddConstraint(Double_t *par, Double_t value) {
901 /// Constrain equation defined by par to value
902 fMillepede->SetGlobalConstraint(par, value);
903 AliInfo("Adding constraint");
904}
905
56218672 906//______________________________________________________________________
010eb601 907void AliMUONAlignment::InitGlobalParameters(Double_t *par) {
908 /// Initialize global parameters with par array
909 fMillepede->SetGlobalParameters(par);
910 AliInfo("Init Global Parameters");
911}
56218672 912
913//______________________________________________________________________
010eb601 914void AliMUONAlignment::FixParameter(Int_t iPar, Double_t value) {
56218672 915 /// Parameter iPar is encourage to vary in [-value;value].
010eb601 916 /// If value == 0, parameter is fixed
917 fMillepede->SetParSigma(iPar, value);
a6ec842d 918 if (TMath::Abs(value)<1e-4) AliInfo(Form("Parameter %i Fixed", iPar));
010eb601 919}
920
56218672 921//______________________________________________________________________
010eb601 922void AliMUONAlignment::ResetLocalEquation()
923{
924 /// Reset the derivative vectors
925 for(int i=0; i<fNLocal; i++) {
926 fLocalDerivatives[i] = 0.0;
927 }
928 for(int i=0; i<fNGlobal; i++) {
929 fGlobalDerivatives[i] = 0.0;
930 }
931}
932
56218672 933//______________________________________________________________________
934void AliMUONAlignment::AllowVariations(const Bool_t *bChOnOff)
935{
936
d8ad38e5 937 /// Set allowed variation for selected chambers based on fDoF and fAllowVar
56218672 938 for (Int_t iCh=1; iCh<=10; iCh++)
939 {
940 if (bChOnOff[iCh-1])
941 {
942
943 Int_t iDetElemFirst = (iCh>1) ? fgSNDetElemCh[iCh-2] : 0;
944 Int_t iDetElemLast = fgSNDetElemCh[iCh-1];
945 for (int i=0; i<fgNParCh; i++)
946 {
947 AliDebug(1,Form("fDoF[%d]= %d",i,fDoF[i]));
948 if (fDoF[i])
949 {
950 for (Int_t j=iDetElemFirst; j<iDetElemLast; j++){
951 FixParameter(j*fgNParCh+i, fAllowVar[i]);
952 }
953 }
954
010eb601 955 }
56218672 956
010eb601 957 }
56218672 958
010eb601 959 }
56218672 960
010eb601 961}
962
56218672 963//______________________________________________________________________
964void AliMUONAlignment::SetNonLinear(Int_t iPar /* set non linear flag */ )
965{
010eb601 966 /// Set nonlinear flag for parameter iPar
967 fMillepede->SetNonLinear(iPar);
968 AliInfo(Form("Parameter %i set to non linear", iPar));
969}
970
56218672 971//______________________________________________________________________
972void AliMUONAlignment::SetSigmaXY(Double_t sigmaX, Double_t sigmaY)
973{
64e2c144 974
64e2c144 975 /// Set expected measurement resolution
976 fSigma[0] = sigmaX; fSigma[1] = sigmaY;
977 AliInfo(Form("Using fSigma[0]=%f and fSigma[1]=%f",fSigma[0],fSigma[1]));
978}
979
980
56218672 981//______________________________________________________________________
982void AliMUONAlignment::LocalEquationX( Bool_t doAlignment )
983{
984
985
986 // local cluster record
987 AliMUONAlignmentClusterRecord clusterRecord;
988
989 // store detector and measurement
990 clusterRecord.SetDetElemId( fDetElemId );
991 clusterRecord.SetDetElemNumber( fDetElemNumber );
992 clusterRecord.SetMeas( fMeas[0] );
993 clusterRecord.SetSigma( fSigma[0] );
994
995 // store local derivatives
996 clusterRecord.SetLocalDerivative( 0, fCosPhi );
997 clusterRecord.SetLocalDerivative( 1, fCosPhi*(fTrackPos[2] - fTrackPos0[2]) );
998 clusterRecord.SetLocalDerivative( 2, fSinPhi );
999 clusterRecord.SetLocalDerivative( 3, fSinPhi*(fTrackPos[2] - fTrackPos0[2]) );
1000
1001 // store global derivatives
1002 clusterRecord.SetGlobalDerivative( 0, -fCosPhi );
1003 clusterRecord.SetGlobalDerivative( 1, -fSinPhi );
1004
1005 if (fBFieldOn)
1006 {
1007
1008 clusterRecord.SetGlobalDerivative(
1009 2,
1010 -fSinPhi*(fTrackPos[0]-fDetElemPos[0])
1011 +fCosPhi*(fTrackPos[1]-fDetElemPos[1]) );
1012
1013 } else {
1014
1015 clusterRecord.SetGlobalDerivative(
1016 2,
1017 -fSinPhi*(fTrackPos0[0]+fTrackSlope0[0]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
1018 +fCosPhi*(fTrackPos0[1]+fTrackSlope0[1]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]) );
010eb601 1019
010eb601 1020 }
1021
56218672 1022 clusterRecord.SetGlobalDerivative( 3, fCosPhi*fTrackSlope0[0]+fSinPhi*fTrackSlope0[1] );
1023
1024 // append to trackRecord
1025 fTrackRecord.AddClusterRecord( clusterRecord );
1026
1027 // store local equation
1028 if( doAlignment ) LocalEquation( clusterRecord );
1029
010eb601 1030}
1031
56218672 1032//______________________________________________________________________
1033void AliMUONAlignment::LocalEquationY(Bool_t doAlignment )
1034{
1035
1036 // local cluster record
1037 AliMUONAlignmentClusterRecord clusterRecord;
1038
1039 // store detector and measurement
1040 clusterRecord.SetDetElemId( fDetElemId );
1041 clusterRecord.SetDetElemNumber( fDetElemNumber );
1042 clusterRecord.SetMeas( fMeas[1] );
1043 clusterRecord.SetSigma( fSigma[1] );
1044
1045 // store local derivatives
1046 clusterRecord.SetLocalDerivative( 0, -fSinPhi );
1047 clusterRecord.SetLocalDerivative( 1, -fSinPhi*(fTrackPos[2] - fTrackPos0[2] ) );
1048 clusterRecord.SetLocalDerivative( 2, fCosPhi );
1049 clusterRecord.SetLocalDerivative( 3, fCosPhi*(fTrackPos[2] - fTrackPos0[2] ) );
010eb601 1050
1051 // set global derivatives
56218672 1052 clusterRecord.SetGlobalDerivative( 0, fSinPhi);
1053 clusterRecord.SetGlobalDerivative( 1, -fCosPhi);
1054
1055 if (fBFieldOn)
1056 {
1057
1058 clusterRecord.SetGlobalDerivative(
1059 2,
1060 -fCosPhi*(fTrackPos[0]-fDetElemPos[0])
1061 -fSinPhi*(fTrackPos[1]-fDetElemPos[1]));
1062
1063 } else {
1064
1065 clusterRecord.SetGlobalDerivative(
1066 2,
1067 -fCosPhi*(fTrackPos0[0]+fTrackSlope0[0]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
1068 -fSinPhi*(fTrackPos0[1]+fTrackSlope0[1]*(fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]));
010eb601 1069 }
56218672 1070
1071 clusterRecord.SetGlobalDerivative( 3, -fSinPhi*fTrackSlope0[0]+fCosPhi*fTrackSlope0[1]);
1072
1073 // append to trackRecord
1074 fTrackRecord.AddClusterRecord( clusterRecord );
1075
1076 // store local equation
1077 if( doAlignment ) LocalEquation( clusterRecord );
1078
1079}
1080
1081//_____________________________________________________
1082void AliMUONAlignment::LocalEquation( const AliMUONAlignmentClusterRecord& clusterRecord )
1083{
1084
1085 // copy to local variables
1086 for( Int_t index = 0; index < 4; ++index )
1087 {
1088 SetLocalDerivative( index, clusterRecord.GetLocalDerivative( index ) );
1089 SetGlobalDerivative( clusterRecord.GetDetElemNumber()*fgNParCh + index, clusterRecord.GetGlobalDerivative( index ) );
010eb601 1090 }
1091
56218672 1092 // pass equation parameters to millepede
1093 fMillepede->SetLocalEquation( fGlobalDerivatives, fLocalDerivatives, clusterRecord.GetMeas(), clusterRecord.GetSigma() );
1094
010eb601 1095}
1096
56218672 1097//______________________________________________________________________
1098void AliMUONAlignment::FillRecPointData()
1099{
1100
96ebe67e 1101 /// Get information of current cluster
1102 fClustPos[0] = fCluster->GetX();
1103 fClustPos[1] = fCluster->GetY();
1104 fClustPos[2] = fCluster->GetZ();
56218672 1105 fTransform->Global2Local(
1106 fDetElemId,fClustPos[0],fClustPos[1],fClustPos[2],
1107 fClustPosLoc[0],fClustPosLoc[1],fClustPosLoc[2]);
1108
010eb601 1109}
1110
56218672 1111//______________________________________________________________________
1112void AliMUONAlignment::FillTrackParamData()
1113{
1114
96ebe67e 1115 /// Get information of current track at current cluster
010eb601 1116 fTrackPos[0] = fTrackParam->GetNonBendingCoor();
1117 fTrackPos[1] = fTrackParam->GetBendingCoor();
1118 fTrackPos[2] = fTrackParam->GetZ();
1119 fTrackSlope[0] = fTrackParam->GetNonBendingSlope();
1120 fTrackSlope[1] = fTrackParam->GetBendingSlope();
56218672 1121 fTransform->Global2Local(
1122 fDetElemId,fTrackPos[0],fTrackPos[1],fTrackPos[2],
1123 fTrackPosLoc[0],fTrackPosLoc[1],fTrackPosLoc[2]);
1124
010eb601 1125}
1126
56218672 1127//_____________________________________________________
1128void AliMUONAlignment::FillDetElemData()
1129{
1130
010eb601 1131 /// Get information of current detection element
1132 Double_t lDetElemLocX = 0.;
1133 Double_t lDetElemLocY = 0.;
1134 Double_t lDetElemLocZ = 0.;
96ebe67e 1135 fDetElemId = fCluster->GetDetElemId();
010eb601 1136 fDetElemNumber = fDetElemId%100;
56218672 1137 for (int iCh=0; iCh<fDetElemId/100-1; iCh++)
1138 { fDetElemNumber += fgNDetElemCh[iCh]; }
1139
1140 fTransform->Local2Global(
1141 fDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
1142 fDetElemPos[0],fDetElemPos[1],fDetElemPos[2]);
1143
010eb601 1144}
1145
56218672 1146//_____________________________________________________
1147AliMUONAlignmentTrackRecord* AliMUONAlignment::ProcessTrack( AliMUONTrack* track, Bool_t doAlignment )
1148{
1149
1150 // store current track in running member.
010eb601 1151 fTrack = track;
56218672 1152
1153 // clear track record
1154 fTrackRecord.Clear();
1155
1156 // get number of tracks
1157 Int_t nTrackParam = fTrack->GetTrackParamAtCluster()->GetEntries();
3b2890be 1158 AliDebug(1,Form("Number of track param entries : %i ", nTrackParam));
010eb601 1159
56218672 1160 Bool_t first( kTRUE );
1161 for(Int_t iCluster=0; iCluster<nTrackParam; iCluster++)
1162 {
010eb601 1163
010eb601 1164 // and get new pointers
96ebe67e 1165 fTrackParam = (AliMUONTrackParam *) fTrack->GetTrackParamAtCluster()->At(iCluster);
7e96937a 1166 if ( ! fTrackParam ) continue;
96ebe67e 1167 fCluster = fTrackParam->GetClusterPtr();
7e96937a 1168 if ( ! fCluster ) continue;
56218672 1169 // if (fDetElemId<500) continue;
1170
010eb601 1171 // fill local variables for this position --> one measurement
56218672 1172 FillDetElemData();
010eb601 1173 FillRecPointData();
1174 FillTrackParamData();
010eb601 1175
56218672 1176 if( first )
1177 {
1178
1179 // for first valid cluster, save track position as "starting" values
1180 first = kFALSE;
1181
1182 fTrackPos0[0] = fTrackPos[0];
1183 fTrackPos0[1] = fTrackPos[1];
1184 fTrackPos0[2] = fTrackPos[2];
1185 fTrackSlope0[0] = fTrackSlope[0];
1186 fTrackSlope0[1] = fTrackSlope[1];
1187
1188 }
1189
1190 // calculate measurements
010eb601 1191 fCosPhi = TMath::Cos(fPhi);
1192 fSinPhi = TMath::Sin(fPhi);
56218672 1193 if( fBFieldOn )
1194 {
1195
010eb601 1196 fMeas[0] = fTrackPos[0] - fClustPos[0];
1197 fMeas[1] = fTrackPos[1] - fClustPos[1];
56218672 1198
1199 } else {
1200
010eb601 1201 fMeas[0] = - fClustPos[0];
1202 fMeas[1] = - fClustPos[1];
56218672 1203
010eb601 1204 }
56218672 1205
1206