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