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 "AliMUONConstants.h"
39 #include "AliMillepede.h"
41 #include "AliMpExMap.h"
49 ClassImp(AliMUONAlignment)
52 Int_t AliMUONAlignment::fgNDetElem = 4*2+4*2+18*2+26*2+26*2;
53 Int_t AliMUONAlignment::fgNDetElemCh[10] = {4,4,4,4,18,18,26,26,26,26};
54 Int_t AliMUONAlignment::fgSNDetElemCh[10] = {4,8,12,16,34,52,78,104,130,156};
55 Int_t AliMUONAlignment::fgNParCh = 3;
56 Int_t AliMUONAlignment::fgNTrkMod = 16;
57 Int_t AliMUONAlignment::fgNCh = 10;
58 Int_t AliMUONAlignment::fgNSt = 5;
60 AliMUONAlignment::AliMUONAlignment()
67 fTrackParamAtCluster(0),
71 fNGlobal(fgNDetElem*fgNParCh),
81 /// Default constructor, setting define alignment parameters
85 fDoF[0] = kTRUE; fDoF[1] = kTRUE; fDoF[2] = kTRUE;
86 fAllowVar[0] = 0.05; fAllowVar[1] = 0.05; fAllowVar[2] = 0.001;
88 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));
90 fMillepede = new AliMillepede();
92 Init(fNGlobal, fNLocal, fNStdDev);
95 AliInfo("Parameters initialized to zero");
99 AliMUONAlignment::~AliMUONAlignment() {
103 void AliMUONAlignment::Init(Int_t nGlobal, /* number of global paramers */
104 Int_t nLocal, /* number of local parameters */
105 Int_t nStdDev /* std dev cut */ )
107 /// Initialization of AliMillepede. Fix parameters, define constraints ...
108 fMillepede->InitMille(nGlobal,nLocal,nStdDev,fResCut,fResCutInitial);
110 Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
111 Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE};
113 AllowVariations(bStOnOff);
115 // Fix parameters or add constraints here
116 for (Int_t iSt=0; iSt<5; iSt++)
117 if (!bStOnOff[iSt]) FixStation(iSt+1);
119 FixHalfSpectrometer(bStOnOff,bSpecLROnOff);
123 // Define global constrains to be applied
124 // X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY
125 Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
126 Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE};
127 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR,bSpecLROnOff);
129 // Other possible way to add constrains
130 bVarXYT[0] = kFALSE; bVarXYT[1] = kFALSE; bVarXYT[2] = kTRUE;
131 bDetTLBR[0] = kFALSE; bDetTLBR[1] = kTRUE; bDetTLBR[2] = kFALSE; bDetTLBR[3] = kFALSE;
132 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR);
134 bVarXYT[0] = kTRUE; bVarXYT[1] = kTRUE; bVarXYT[2] = kFALSE;
135 // AddConstraints(bStOnOff,bVarXYT);
138 if (fStartFac>1) fMillepede->SetIterations(fStartFac);
141 void AliMUONAlignment::FixStation(Int_t iSt){
142 /// Fix all detection elements of station iSt
143 Int_t iDetElemFirst = (iSt>1) ? fgSNDetElemCh[2*(iSt-1)-1] : 0;
144 Int_t iDetElemLast = fgSNDetElemCh[2*(iSt)-1];
145 for (Int_t i = iDetElemFirst; i < iDetElemLast; i++){
146 FixParameter(i*fgNParCh+0, 0.0);
147 FixParameter(i*fgNParCh+1, 0.0);
148 FixParameter(i*fgNParCh+2, 0.0);
152 void AliMUONAlignment::FixHalfSpectrometer(Bool_t *lStOnOff, Bool_t *lSpecLROnOff){
153 /// Fix left or right detector
154 for (Int_t i = 0; i < fgNDetElem; i++){
156 for (iCh=1; iCh<=fgNCh; iCh++){
157 if (i<fgSNDetElemCh[iCh-1]) break;
159 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
161 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
162 if (iCh>=1 && iCh<=4){
163 if ((lDetElemNumber==1 || lDetElemNumber==2) && !lSpecLROnOff[0]){ // From track crossings
164 FixParameter(i*fgNParCh+0, 0.0);
165 FixParameter(i*fgNParCh+1, 0.0);
166 FixParameter(i*fgNParCh+2, 0.0);
168 if ((lDetElemNumber==0 || lDetElemNumber==3) && !lSpecLROnOff[1]){ // From track crossings
169 FixParameter(i*fgNParCh+0, 0.0);
170 FixParameter(i*fgNParCh+1, 0.0);
171 FixParameter(i*fgNParCh+2, 0.0);
174 if (iCh>=5 && iCh<=6){
175 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && !lSpecLROnOff[0]){
176 FixParameter(i*fgNParCh+0, 0.0);
177 FixParameter(i*fgNParCh+1, 0.0);
178 FixParameter(i*fgNParCh+2, 0.0);
180 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
181 (lDetElemNumber>=14&&lDetElemNumber<=17)) && !lSpecLROnOff[1]){
182 FixParameter(i*fgNParCh+0, 0.0);
183 FixParameter(i*fgNParCh+1, 0.0);
184 FixParameter(i*fgNParCh+2, 0.0);
187 if (iCh>=7 && iCh<=10){
188 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && !lSpecLROnOff[0]){
189 FixParameter(i*fgNParCh+0, 0.0);
190 FixParameter(i*fgNParCh+1, 0.0);
191 FixParameter(i*fgNParCh+2, 0.0);
193 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
194 (lDetElemNumber>=20&&lDetElemNumber<=25)) && !lSpecLROnOff[1]){
195 FixParameter(i*fgNParCh+0, 0.0);
196 FixParameter(i*fgNParCh+1, 0.0);
197 FixParameter(i*fgNParCh+2, 0.0);
204 void AliMUONAlignment::SetNonLinear(Bool_t *lStOnOff,Bool_t *lVarXYT){
205 /// Set non linear parameter flag selected stations and degrees of freedom
206 for (Int_t i = 0; i < fgNDetElem; i++){
208 for (iCh=1; iCh<=fgNCh; iCh++){
209 if (i<fgSNDetElemCh[iCh-1]) break;
211 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
213 if (lVarXYT[0]) { // X constraint
214 SetNonLinear(i*fgNParCh+0);
216 if (lVarXYT[1]) { // Y constraint
217 SetNonLinear(i*fgNParCh+1);
219 if (lVarXYT[2]) { // T constraint
220 SetNonLinear(i*fgNParCh+2);
226 void AliMUONAlignment::AddConstraints(Bool_t *lStOnOff,Bool_t *lVarXYT){
227 /// Add constraint equations for selected stations and degrees of freedom
228 for (Int_t i = 0; i < fgNDetElem; i++){
230 for (iCh=1; iCh<=fgNCh; iCh++){
231 if (i<fgSNDetElemCh[iCh-1]) break;
233 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
235 if (lVarXYT[0]) { // X constraint
236 fConstraintX[i*fgNParCh+0]=1.0;
238 if (lVarXYT[1]) { // Y constraint
239 fConstraintY[i*fgNParCh+1]=1.0;
241 if (lVarXYT[2]) { // T constraint
242 fConstraintP[i*fgNParCh+2]=1.0;
246 if (lVarXYT[0]) { // X constraint
247 AddConstraint(fConstraintX,0.0);
249 if (lVarXYT[1]) { // Y constraint
250 AddConstraint(fConstraintY,0.0);
252 if (lVarXYT[2]) { // T constraint
253 AddConstraint(fConstraintP,0.0);
257 void AliMUONAlignment::AddConstraints(Bool_t *lStOnOff,Bool_t *lVarXYT, Bool_t *lDetTLBR, Bool_t *lSpecLROnOff){
258 /// Add constraint equations for selected stations, degrees of freedom and detector half
259 Double_t lDetElemLocX = 0.;
260 Double_t lDetElemLocY = 0.;
261 Double_t lDetElemLocZ = 0.;
262 Double_t lDetElemGloX = 0.;
263 Double_t lDetElemGloY = 0.;
264 Double_t lDetElemGloZ = 0.;
265 Double_t lMeanY = 0.;
266 Double_t lSigmaY = 0.;
267 Double_t lMeanZ = 0.;
268 Double_t lSigmaZ = 0.;
270 for (Int_t i = 0; i < fgNDetElem; i++){
272 for (iCh=1; iCh<=fgNCh; iCh++){
273 if (i<fgSNDetElemCh[iCh-1]) break;
275 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
277 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
278 Int_t lDetElemId = iCh*100+lDetElemNumber;
279 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
280 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
281 if (iCh>=1 && iCh<=4){
282 if ((lDetElemNumber==1 || lDetElemNumber==2) && lSpecLROnOff[0]){ // From track crossings
283 lMeanY += lDetElemGloY;
284 lSigmaY += lDetElemGloY*lDetElemGloY;
285 lMeanZ += lDetElemGloZ;
286 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
289 if ((lDetElemNumber==0 || lDetElemNumber==3) && lSpecLROnOff[1]){ // From track crossings
290 lMeanY += lDetElemGloY;
291 lSigmaY += lDetElemGloY*lDetElemGloY;
292 lMeanZ += lDetElemGloZ;
293 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
297 if (iCh>=5 && iCh<=6){
298 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && lSpecLROnOff[0]){
299 lMeanY += lDetElemGloY;
300 lSigmaY += lDetElemGloY*lDetElemGloY;
301 lMeanZ += lDetElemGloZ;
302 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
305 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
306 (lDetElemNumber>=14&&lDetElemNumber<=17)) && lSpecLROnOff[1]){
307 lMeanY += lDetElemGloY;
308 lSigmaY += lDetElemGloY*lDetElemGloY;
309 lMeanZ += lDetElemGloZ;
310 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
314 if (iCh>=7 && iCh<=10){
315 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && lSpecLROnOff[0]){
316 lMeanY += lDetElemGloY;
317 lSigmaY += lDetElemGloY*lDetElemGloY;
318 lMeanZ += lDetElemGloZ;
319 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
322 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
323 (lDetElemNumber>=20&&lDetElemNumber<=25)) && lSpecLROnOff[1]){
324 lMeanY += lDetElemGloY;
325 lSigmaY += lDetElemGloY*lDetElemGloY;
326 lMeanZ += lDetElemGloZ;
327 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
334 lSigmaY /= lNDetElem;
335 lSigmaY = TMath::Sqrt(lSigmaY-lMeanY*lMeanY);
337 lSigmaZ /= lNDetElem;
338 lSigmaZ = TMath::Sqrt(lSigmaZ-lMeanZ*lMeanZ);
339 AliInfo(Form("Used %i DetElem, MeanZ= %f , SigmaZ= %f", lNDetElem,lMeanZ,lSigmaZ));
341 for (Int_t i = 0; i < fgNDetElem; i++){
343 for (iCh=1; iCh<=fgNCh; iCh++){
344 if (i<fgSNDetElemCh[iCh-1]) break;
346 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
348 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
349 Int_t lDetElemId = iCh*100+lDetElemNumber;
350 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
351 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
352 if (lVarXYT[0]) { // X constraint
353 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXT,0); // Top half
354 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXL,0); // Left half
355 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXB,0); // Bottom half
356 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXR,0); // Right half
358 if (lVarXYT[1]) { // Y constraint
359 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYT,1); // Top half
360 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYL,1); // Left half
361 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYB,1); // Bottom half
362 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYR,1); // Right half
364 if (lVarXYT[2]) { // P constraint
365 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPT,2); // Top half
366 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPL,2); // Left half
367 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPB,2); // Bottom half
368 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPR,2); // Right half
370 if (lVarXYT[3]) { // X-Z shearing
371 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXZT,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
372 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXZL,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
373 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXZB,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
374 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXZR,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
376 if (lVarXYT[4]) { // Y-Z shearing
377 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYZT,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
378 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYZL,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
379 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYZB,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
380 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYZR,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
382 if (lVarXYT[5]) { // P-Z rotation
383 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPZT,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
384 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPZL,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
385 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPZB,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
386 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPZR,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
388 if (lVarXYT[6]) { // X-Y shearing
389 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXYT,0,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
390 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXYL,0,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
391 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXYB,0,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
392 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXYR,0,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
394 if (lVarXYT[7]) { // Y-Y scaling
395 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYYT,1,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
396 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYYL,1,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
397 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYYB,1,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
398 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYYR,1,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
400 if (lVarXYT[8]) { // P-Y rotation
401 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPYT,2,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
402 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPYL,2,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
403 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPYB,2,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
404 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPYR,2,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
408 if (lVarXYT[0]) { // X constraint
409 if (lDetTLBR[0]) AddConstraint(fConstraintXT,0.0); // Top half
410 if (lDetTLBR[1]) AddConstraint(fConstraintXL,0.0); // Left half
411 if (lDetTLBR[2]) AddConstraint(fConstraintXB,0.0); // Bottom half
412 if (lDetTLBR[3]) AddConstraint(fConstraintXR,0.0); // Right half
414 if (lVarXYT[1]) { // Y constraint
415 if (lDetTLBR[0]) AddConstraint(fConstraintYT,0.0); // Top half
416 if (lDetTLBR[1]) AddConstraint(fConstraintYL,0.0); // Left half
417 if (lDetTLBR[2]) AddConstraint(fConstraintYB,0.0); // Bottom half
418 if (lDetTLBR[3]) AddConstraint(fConstraintYR,0.0); // Right half
420 if (lVarXYT[2]) { // T constraint
421 if (lDetTLBR[0]) AddConstraint(fConstraintPT,0.0); // Top half
422 if (lDetTLBR[1]) AddConstraint(fConstraintPL,0.0); // Left half
423 if (lDetTLBR[2]) AddConstraint(fConstraintPB,0.0); // Bottom half
424 if (lDetTLBR[3]) AddConstraint(fConstraintPR,0.0); // Right half
426 if (lVarXYT[3]) { // X-Z constraint
427 if (lDetTLBR[0]) AddConstraint(fConstraintXZT,0.0); // Top half
428 if (lDetTLBR[1]) AddConstraint(fConstraintXZL,0.0); // Left half
429 if (lDetTLBR[2]) AddConstraint(fConstraintXZB,0.0); // Bottom half
430 if (lDetTLBR[3]) AddConstraint(fConstraintXZR,0.0); // Right half
432 if (lVarXYT[4]) { // Y-Z constraint
433 if (lDetTLBR[0]) AddConstraint(fConstraintYZT,0.0); // Top half
434 if (lDetTLBR[1]) AddConstraint(fConstraintYZL,0.0); // Left half
435 if (lDetTLBR[2]) AddConstraint(fConstraintYZB,0.0); // Bottom half
436 if (lDetTLBR[3]) AddConstraint(fConstraintYZR,0.0); // Right half
438 if (lVarXYT[5]) { // P-Z constraint
439 if (lDetTLBR[0]) AddConstraint(fConstraintPZT,0.0); // Top half
440 if (lDetTLBR[1]) AddConstraint(fConstraintPZL,0.0); // Left half
441 if (lDetTLBR[2]) AddConstraint(fConstraintPZB,0.0); // Bottom half
442 if (lDetTLBR[3]) AddConstraint(fConstraintPZR,0.0); // Right half
444 if (lVarXYT[6]) { // X-Y constraint
445 if (lDetTLBR[0]) AddConstraint(fConstraintXYT,0.0); // Top half
446 if (lDetTLBR[1]) AddConstraint(fConstraintXYL,0.0); // Left half
447 if (lDetTLBR[2]) AddConstraint(fConstraintXYB,0.0); // Bottom half
448 if (lDetTLBR[3]) AddConstraint(fConstraintXYR,0.0); // Right half
450 if (lVarXYT[7]) { // Y-Y constraint
451 if (lDetTLBR[0]) AddConstraint(fConstraintYYT,0.0); // Top half
452 if (lDetTLBR[1]) AddConstraint(fConstraintYYL,0.0); // Left half
453 if (lDetTLBR[2]) AddConstraint(fConstraintYYB,0.0); // Bottom half
454 if (lDetTLBR[3]) AddConstraint(fConstraintYYR,0.0); // Right half
456 if (lVarXYT[8]) { // P-Y constraint
457 if (lDetTLBR[0]) AddConstraint(fConstraintPYT,0.0); // Top half
458 if (lDetTLBR[1]) AddConstraint(fConstraintPYL,0.0); // Left half
459 if (lDetTLBR[2]) AddConstraint(fConstraintPYB,0.0); // Bottom half
460 if (lDetTLBR[3]) AddConstraint(fConstraintPYR,0.0); // Right half
464 void AliMUONAlignment::ConstrainT(Int_t lDetElem, Int_t lCh, Double_t *lConstraintT, Int_t iVar, Double_t /*lWeight*/){
465 /// Set constrain equation for top half of spectrometer
466 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
467 if (lCh>=1 && lCh<=4){
468 if (lDetElemNumber==0 || lDetElemNumber==1){ // From track crossings
469 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
472 if (lCh>=5 && lCh<=6){
473 if (lDetElemNumber>=0&&lDetElemNumber<=9){
474 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
477 if (lCh>=7 && lCh<=10){
478 if (lDetElemNumber>=0&&lDetElemNumber<=13){
479 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
484 void AliMUONAlignment::ConstrainL(Int_t lDetElem, Int_t lCh, Double_t *lConstraintL, Int_t iVar, Double_t lWeight){
485 /// Set constrain equation for left half of spectrometer
486 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
487 if (lCh>=1 && lCh<=4){
488 if (lDetElemNumber==1 || lDetElemNumber==2){ // From track crossings
489 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
492 if (lCh>=5 && lCh<=6){
493 if (lDetElemNumber>=5&&lDetElemNumber<=13){
494 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
497 if (lCh>=7 && lCh<=10){
498 if (lDetElemNumber>=7&&lDetElemNumber<=19){
499 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
504 void AliMUONAlignment::ConstrainB(Int_t lDetElem, Int_t lCh, Double_t *lConstraintB, Int_t iVar, Double_t /*lWeight*/){
505 /// Set constrain equation for bottom half of spectrometer
506 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
507 if (lCh>=1 && lCh<=4){
508 if (lDetElemNumber==2 || lDetElemNumber==3){ // From track crossings
509 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
512 if (lCh>=5 && lCh<=6){
513 if ((lDetElemNumber>=9&&lDetElemNumber<=17) ||
514 (lDetElemNumber==0)){
515 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
518 if (lCh>=7 && lCh<=10){
519 if ((lDetElemNumber>=13&&lDetElemNumber<=25) ||
520 (lDetElemNumber==0)){
521 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
526 void AliMUONAlignment::ConstrainR(Int_t lDetElem, Int_t lCh, Double_t *lConstraintR, Int_t iVar, Double_t lWeight){
527 /// Set constrain equation for right half of spectrometer
528 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
529 if (lCh>=1 && lCh<=4){
530 if (lDetElemNumber==0 || lDetElemNumber==3){ // From track crossings
531 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
534 if (lCh>=5 && lCh<=6){
535 if ((lDetElemNumber>=0&&lDetElemNumber<=4) ||
536 (lDetElemNumber>=14&&lDetElemNumber<=17)){
537 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
540 if (lCh>=7 && lCh<=10){
541 if ((lDetElemNumber>=0&&lDetElemNumber<=6) ||
542 (lDetElemNumber>=20&&lDetElemNumber<=25)){
543 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
548 void AliMUONAlignment::ResetConstraints(){
549 /// Reset all constraint equations
550 for (Int_t i = 0; i < fgNDetElem; i++){
551 fConstraintX[i*fgNParCh+0]=0.0;
552 fConstraintX[i*fgNParCh+1]=0.0;
553 fConstraintX[i*fgNParCh+2]=0.0;
554 fConstraintY[i*fgNParCh+0]=0.0;
555 fConstraintY[i*fgNParCh+1]=0.0;
556 fConstraintY[i*fgNParCh+2]=0.0;
557 fConstraintP[i*fgNParCh+0]=0.0;
558 fConstraintP[i*fgNParCh+1]=0.0;
559 fConstraintP[i*fgNParCh+2]=0.0;
560 fConstraintXT[i*fgNParCh+0]=0.0;
561 fConstraintXT[i*fgNParCh+1]=0.0;
562 fConstraintXT[i*fgNParCh+2]=0.0;
563 fConstraintYT[i*fgNParCh+0]=0.0;
564 fConstraintYT[i*fgNParCh+1]=0.0;
565 fConstraintYT[i*fgNParCh+2]=0.0;
566 fConstraintPT[i*fgNParCh+0]=0.0;
567 fConstraintPT[i*fgNParCh+1]=0.0;
568 fConstraintPT[i*fgNParCh+2]=0.0;
569 fConstraintXZT[i*fgNParCh+0]=0.0;
570 fConstraintXZT[i*fgNParCh+1]=0.0;
571 fConstraintXZT[i*fgNParCh+2]=0.0;
572 fConstraintYZT[i*fgNParCh+0]=0.0;
573 fConstraintYZT[i*fgNParCh+1]=0.0;
574 fConstraintYZT[i*fgNParCh+2]=0.0;
575 fConstraintPZT[i*fgNParCh+0]=0.0;
576 fConstraintPZT[i*fgNParCh+1]=0.0;
577 fConstraintPZT[i*fgNParCh+2]=0.0;
578 fConstraintXYT[i*fgNParCh+0]=0.0;
579 fConstraintXYT[i*fgNParCh+1]=0.0;
580 fConstraintXYT[i*fgNParCh+2]=0.0;
581 fConstraintYYT[i*fgNParCh+0]=0.0;
582 fConstraintYYT[i*fgNParCh+1]=0.0;
583 fConstraintYYT[i*fgNParCh+2]=0.0;
584 fConstraintPYT[i*fgNParCh+0]=0.0;
585 fConstraintPYT[i*fgNParCh+1]=0.0;
586 fConstraintPYT[i*fgNParCh+2]=0.0;
587 fConstraintXL[i*fgNParCh+0]=0.0;
588 fConstraintXL[i*fgNParCh+1]=0.0;
589 fConstraintXL[i*fgNParCh+2]=0.0;
590 fConstraintYL[i*fgNParCh+0]=0.0;
591 fConstraintYL[i*fgNParCh+1]=0.0;
592 fConstraintYL[i*fgNParCh+2]=0.0;
593 fConstraintPL[i*fgNParCh+0]=0.0;
594 fConstraintPL[i*fgNParCh+1]=0.0;
595 fConstraintPL[i*fgNParCh+2]=0.0;
596 fConstraintXZL[i*fgNParCh+0]=0.0;
597 fConstraintXZL[i*fgNParCh+1]=0.0;
598 fConstraintXZL[i*fgNParCh+2]=0.0;
599 fConstraintYZL[i*fgNParCh+0]=0.0;
600 fConstraintYZL[i*fgNParCh+1]=0.0;
601 fConstraintYZL[i*fgNParCh+2]=0.0;
602 fConstraintPZL[i*fgNParCh+0]=0.0;
603 fConstraintPZL[i*fgNParCh+1]=0.0;
604 fConstraintPZL[i*fgNParCh+2]=0.0;
605 fConstraintXYL[i*fgNParCh+0]=0.0;
606 fConstraintXYL[i*fgNParCh+1]=0.0;
607 fConstraintXYL[i*fgNParCh+2]=0.0;
608 fConstraintYYL[i*fgNParCh+0]=0.0;
609 fConstraintYYL[i*fgNParCh+1]=0.0;
610 fConstraintYYL[i*fgNParCh+2]=0.0;
611 fConstraintPYL[i*fgNParCh+0]=0.0;
612 fConstraintPYL[i*fgNParCh+1]=0.0;
613 fConstraintPYL[i*fgNParCh+2]=0.0;
614 fConstraintXB[i*fgNParCh+0]=0.0;
615 fConstraintXB[i*fgNParCh+1]=0.0;
616 fConstraintXB[i*fgNParCh+2]=0.0;
617 fConstraintYB[i*fgNParCh+0]=0.0;
618 fConstraintYB[i*fgNParCh+1]=0.0;
619 fConstraintYB[i*fgNParCh+2]=0.0;
620 fConstraintPB[i*fgNParCh+0]=0.0;
621 fConstraintPB[i*fgNParCh+1]=0.0;
622 fConstraintPB[i*fgNParCh+2]=0.0;
623 fConstraintXZB[i*fgNParCh+0]=0.0;
624 fConstraintXZB[i*fgNParCh+1]=0.0;
625 fConstraintXZB[i*fgNParCh+2]=0.0;
626 fConstraintYZB[i*fgNParCh+0]=0.0;
627 fConstraintYZB[i*fgNParCh+1]=0.0;
628 fConstraintYZB[i*fgNParCh+2]=0.0;
629 fConstraintPZB[i*fgNParCh+0]=0.0;
630 fConstraintPZB[i*fgNParCh+1]=0.0;
631 fConstraintPZB[i*fgNParCh+2]=0.0;
632 fConstraintXYB[i*fgNParCh+0]=0.0;
633 fConstraintXYB[i*fgNParCh+1]=0.0;
634 fConstraintXYB[i*fgNParCh+2]=0.0;
635 fConstraintYYB[i*fgNParCh+0]=0.0;
636 fConstraintYYB[i*fgNParCh+1]=0.0;
637 fConstraintYYB[i*fgNParCh+2]=0.0;
638 fConstraintPYB[i*fgNParCh+0]=0.0;
639 fConstraintPYB[i*fgNParCh+1]=0.0;
640 fConstraintPYB[i*fgNParCh+2]=0.0;
641 fConstraintXR[i*fgNParCh+0]=0.0;
642 fConstraintXR[i*fgNParCh+1]=0.0;
643 fConstraintXR[i*fgNParCh+2]=0.0;
644 fConstraintYR[i*fgNParCh+0]=0.0;
645 fConstraintYR[i*fgNParCh+1]=0.0;
646 fConstraintYR[i*fgNParCh+2]=0.0;
647 fConstraintPR[i*fgNParCh+0]=0.0;
648 fConstraintPR[i*fgNParCh+1]=0.0;
649 fConstraintPR[i*fgNParCh+2]=0.0;
650 fConstraintXZR[i*fgNParCh+0]=0.0;
651 fConstraintXZR[i*fgNParCh+1]=0.0;
652 fConstraintXZR[i*fgNParCh+2]=0.0;
653 fConstraintYZR[i*fgNParCh+0]=0.0;
654 fConstraintYZR[i*fgNParCh+1]=0.0;
655 fConstraintYZR[i*fgNParCh+2]=0.0;
656 fConstraintPZR[i*fgNParCh+0]=0.0;
657 fConstraintPZR[i*fgNParCh+1]=0.0;
658 fConstraintPZR[i*fgNParCh+2]=0.0;
659 fConstraintPZR[i*fgNParCh+0]=0.0;
660 fConstraintPZR[i*fgNParCh+1]=0.0;
661 fConstraintPZR[i*fgNParCh+2]=0.0;
662 fConstraintXYR[i*fgNParCh+0]=0.0;
663 fConstraintXYR[i*fgNParCh+1]=0.0;
664 fConstraintXYR[i*fgNParCh+2]=0.0;
665 fConstraintYYR[i*fgNParCh+0]=0.0;
666 fConstraintYYR[i*fgNParCh+1]=0.0;
667 fConstraintYYR[i*fgNParCh+2]=0.0;
668 fConstraintPYR[i*fgNParCh+0]=0.0;
669 fConstraintPYR[i*fgNParCh+1]=0.0;
670 fConstraintPYR[i*fgNParCh+2]=0.0;
674 void AliMUONAlignment::AddConstraint(Double_t *par, Double_t value) {
675 /// Constrain equation defined by par to value
676 fMillepede->SetGlobalConstraint(par, value);
677 AliInfo("Adding constraint");
680 void AliMUONAlignment::InitGlobalParameters(Double_t *par) {
681 /// Initialize global parameters with par array
682 fMillepede->SetGlobalParameters(par);
683 AliInfo("Init Global Parameters");
686 void AliMUONAlignment::FixParameter(Int_t iPar, Double_t value) {
687 /// Parameter iPar is encourage to vary in [-value;value].
688 /// If value == 0, parameter is fixed
689 fMillepede->SetParSigma(iPar, value);
690 if (value==0) AliInfo(Form("Parameter %i Fixed", iPar));
693 void AliMUONAlignment::ResetLocalEquation()
695 /// Reset the derivative vectors
696 for(int i=0; i<fNLocal; i++) {
697 fLocalDerivatives[i] = 0.0;
699 for(int i=0; i<fNGlobal; i++) {
700 fGlobalDerivatives[i] = 0.0;
704 void AliMUONAlignment::AllowVariations(Bool_t *bStOnOff) {
705 /// Set allowed variation for selected stations based on fDoF and fAllowVar
706 for (Int_t iSt=1; iSt<=5; iSt++) {
707 if (bStOnOff[iSt-1]) {
708 Int_t iDetElemFirst = (iSt>1) ? fgSNDetElemCh[2*(iSt-1)-1] : 0;
709 Int_t iDetElemLast = fgSNDetElemCh[2*(iSt)-1];
710 for (int i=0; i<fgNParCh; i++) {
711 AliDebug(1,Form("fDoF[%d]= %d",i,fDoF[i]));
713 for (Int_t j=iDetElemFirst; j<iDetElemLast; j++){
714 FixParameter(j*fgNParCh+i, fAllowVar[i]);
722 void AliMUONAlignment::SetNonLinear(Int_t iPar /* set non linear flag */ ) {
723 /// Set nonlinear flag for parameter iPar
724 fMillepede->SetNonLinear(iPar);
725 AliInfo(Form("Parameter %i set to non linear", iPar));
728 void AliMUONAlignment::LocalEquationX() {
729 /// Define local equation for current track and cluster in x coor. measurement
730 // set local derivatives
731 SetLocalDerivative(0, fCosPhi);
732 SetLocalDerivative(1, fCosPhi * (fTrackPos[2] - fTrackPos0[2]));
733 SetLocalDerivative(2, fSinPhi);
734 SetLocalDerivative(3, fSinPhi * (fTrackPos[2] - fTrackPos0[2]));
736 // set global derivatives
737 SetGlobalDerivative(fDetElemNumber*fgNParCh+0, -fCosPhi);
738 SetGlobalDerivative(fDetElemNumber*fgNParCh+1, -fSinPhi);
740 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
741 -fSinPhi*(fTrackPos[0]-fDetElemPos[0])
742 +fCosPhi*(fTrackPos[1]-fDetElemPos[1]));
745 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
746 -fSinPhi*(fTrackPos0[0]+fTrackSlope0[0]*
747 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
748 +fCosPhi*(fTrackPos0[1]+fTrackSlope0[1]*
749 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]));
752 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, fMeas[0], fSigma[0]);
755 void AliMUONAlignment::LocalEquationY() {
756 /// Define local equation for current track and cluster in y coor. measurement
757 // set local derivatives
758 SetLocalDerivative(0,-fSinPhi);
759 SetLocalDerivative(1,-fSinPhi * (fTrackPos[2] - fTrackPos0[2]));
760 SetLocalDerivative(2, fCosPhi);
761 SetLocalDerivative(3, fCosPhi * (fTrackPos[2] - fTrackPos0[2]));
763 // set global derivatives
764 SetGlobalDerivative(fDetElemNumber*fgNParCh+0, fSinPhi);
765 SetGlobalDerivative(fDetElemNumber*fgNParCh+1, -fCosPhi);
767 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
768 -fCosPhi*(fTrackPos[0]-fDetElemPos[0])
769 -fSinPhi*(fTrackPos[1]-fDetElemPos[1]));
772 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
773 -fCosPhi*(fTrackPos0[0]+fTrackSlope0[0]*
774 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
775 -fSinPhi*(fTrackPos0[1]+fTrackSlope0[1]*
776 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]));
779 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, fMeas[1], fSigma[1]);
782 void AliMUONAlignment::FillRecPointData() {
783 /// Get information of current cluster
784 fClustPos[0] = fCluster->GetX();
785 fClustPos[1] = fCluster->GetY();
786 fClustPos[2] = fCluster->GetZ();
787 fTransform->Global2Local(fDetElemId,fClustPos[0],fClustPos[1],fClustPos[2],
788 fClustPosLoc[0],fClustPosLoc[1],fClustPosLoc[2]);
791 void AliMUONAlignment::FillTrackParamData() {
792 /// Get information of current track at current cluster
793 fTrackPos[0] = fTrackParam->GetNonBendingCoor();
794 fTrackPos[1] = fTrackParam->GetBendingCoor();
795 fTrackPos[2] = fTrackParam->GetZ();
796 fTrackSlope[0] = fTrackParam->GetNonBendingSlope();
797 fTrackSlope[1] = fTrackParam->GetBendingSlope();
798 fTransform->Global2Local(fDetElemId,fTrackPos[0],fTrackPos[1],fTrackPos[2],
799 fTrackPosLoc[0],fTrackPosLoc[1],fTrackPosLoc[2]);
802 void AliMUONAlignment::FillDetElemData() {
803 /// Get information of current detection element
804 Double_t lDetElemLocX = 0.;
805 Double_t lDetElemLocY = 0.;
806 Double_t lDetElemLocZ = 0.;
807 fDetElemId = fCluster->GetDetElemId();
808 fDetElemNumber = fDetElemId%100;
809 for (int iCh=0; iCh<fDetElemId/100-1; iCh++){
810 fDetElemNumber += fgNDetElemCh[iCh];
812 fTransform->Local2Global(fDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
813 fDetElemPos[0],fDetElemPos[1],fDetElemPos[2]);
816 void AliMUONAlignment::ProcessTrack(AliMUONTrack * track) {
817 /// Process track; Loop over clusters and set local equations
819 // get tclones arrays.
820 fTrackParamAtCluster = fTrack->GetTrackParamAtCluster();
822 // get size of arrays
823 Int_t nTrackParam = fTrackParamAtCluster->GetEntries();
824 AliDebug(1,Form("Number of track param entries : %i ", nTrackParam));
826 for(Int_t iCluster=0; iCluster<nTrackParam; iCluster++) {
827 fTrackParam = (AliMUONTrackParam *) fTrack->GetTrackParamAtCluster()->At(iCluster);
828 fCluster = fTrackParam->GetClusterPtr();
829 if (!fCluster || !fTrackParam) continue;
830 // fill local variables for this position --> one measurement
833 FillTrackParamData();
834 // if (fDetElemId<500) continue;
835 fTrackPos0[0] = fTrackPos[0];
836 fTrackPos0[1] = fTrackPos[1];
837 fTrackPos0[2] = fTrackPos[2];
838 fTrackSlope0[0] = fTrackSlope[0];
839 fTrackSlope0[1] = fTrackSlope[1];
843 for(Int_t iCluster=0; iCluster<nTrackParam; iCluster++) {
844 // and get new pointers
845 fTrackParam = (AliMUONTrackParam *) fTrack->GetTrackParamAtCluster()->At(iCluster);
846 fCluster = fTrackParam->GetClusterPtr();
847 if (!fCluster || !fTrackParam) continue;
848 // fill local variables for this position --> one measurement
851 FillTrackParamData();
852 // if (fDetElemId<500) continue;
853 AliDebug(1,Form("cluster: %i", iCluster));
854 AliDebug(1,Form("x: %f\t y: %f\t z: %f\t DetElemID: %i\t ", fClustPos[0], fClustPos[1], fClustPos[2], fDetElemId));
855 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));
857 AliDebug(1,Form("Track Parameter: %i", iCluster));
858 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]));
859 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]));
861 fCosPhi = TMath::Cos(fPhi);
862 fSinPhi = TMath::Sin(fPhi);
864 fMeas[0] = fTrackPos[0] - fClustPos[0];
865 fMeas[1] = fTrackPos[1] - fClustPos[1];
868 fMeas[0] = - fClustPos[0];
869 fMeas[1] = - fClustPos[1];
871 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]));
872 // Set local equations
878 void AliMUONAlignment::LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t lSingleFit) {
879 /// Call local fit for this tracks
880 Int_t iRes = fMillepede->LocalFit(iTrack,lTrackParam,lSingleFit);
881 if (iRes && !lSingleFit) {
882 fMillepede->SetNLocalEquations(fMillepede->GetNLocalEquations()+1);
886 void AliMUONAlignment::GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls) {
887 /// Call global fit; Global parameters are stored in parameters
888 fMillepede->GlobalFit(parameters,errors,pulls);
890 AliInfo("Done fitting global parameters!");
891 for (int iGlob=0; iGlob<fgNDetElem; iGlob++){
892 printf("%d\t %f\t %f\t %f \n",iGlob,parameters[iGlob*fgNParCh+0],parameters[iGlob*fgNParCh+1],parameters[iGlob*fgNParCh+2]);
896 Double_t AliMUONAlignment::GetParError(Int_t iPar) {
897 /// Get error of parameter iPar
898 Double_t lErr = fMillepede->GetParError(iPar);
902 void AliMUONAlignment::PrintGlobalParameters() {
903 /// Print global parameters
904 fMillepede->PrintGlobalParameters();
907 //_________________________________________________________________________
908 TGeoCombiTrans AliMUONAlignment::ReAlign(const TGeoCombiTrans & transform, double *lMisAlignment) const
910 /// Realign given transformation by given misalignment and return the misaligned transformation
912 Double_t cartMisAlig[3] = {0,0,0};
913 Double_t angMisAlig[3] = {0,0,0};
914 // const Double_t *trans = transform.GetTranslation();
915 // TGeoRotation *rot;
916 // // check if the rotation we obtain is not NULL
917 // if (transform.GetRotation()) {
918 // rot = transform.GetRotation();
921 // rot = new TGeoRotation("rot");
922 // } // default constructor.
924 cartMisAlig[0] = -lMisAlignment[0];
925 cartMisAlig[1] = -lMisAlignment[1];
926 angMisAlig[2] = -lMisAlignment[2]*180./TMath::Pi();
928 TGeoTranslation deltaTrans(cartMisAlig[0], cartMisAlig[1], cartMisAlig[2]);
929 TGeoRotation deltaRot;
930 deltaRot.RotateX(angMisAlig[0]);
931 deltaRot.RotateY(angMisAlig[1]);
932 deltaRot.RotateZ(angMisAlig[2]);
934 TGeoCombiTrans deltaTransf(deltaTrans,deltaRot);
935 TGeoHMatrix newTransfMat = transform * deltaTransf;
937 return TGeoCombiTrans(newTransfMat);
940 //______________________________________________________________________
941 AliMUONGeometryTransformer *
942 AliMUONAlignment::ReAlign(const AliMUONGeometryTransformer * transformer,
943 double *misAlignments, Bool_t verbose)
946 /////////////////////////////////////////////////////////////////////
947 // Takes the internal geometry module transformers, copies them
948 // and gets the Detection Elements from them.
949 // Takes misalignment parameters and applies these
950 // to the local transform of the Detection Element
951 // Obtains the global transform by multiplying the module transformer
952 // transformation with the local transformation
953 // Applies the global transform to a new detection element
954 // Adds the new detection element to a new module transformer
955 // Adds the new module transformer to a new geometry transformer
956 // Returns the new geometry transformer
958 Double_t lModuleMisAlignment[3] = {0.,0.,0.};
959 Double_t lDetElemMisAlignment[3] = {0.,0.,0.};
960 Int_t iDetElemId = 0;
961 Int_t iDetElemNumber = 0;
963 AliMUONGeometryTransformer *newGeometryTransformer =
964 new AliMUONGeometryTransformer();
965 for (Int_t iMt = 0; iMt < transformer->GetNofModuleTransformers(); iMt++) {
966 // module transformers
967 const AliMUONGeometryModuleTransformer *kModuleTransformer =
968 transformer->GetModuleTransformer(iMt, true);
970 AliMUONGeometryModuleTransformer *newModuleTransformer =
971 new AliMUONGeometryModuleTransformer(iMt);
972 newGeometryTransformer->AddModuleTransformer(newModuleTransformer);
974 TGeoCombiTrans moduleTransform =
975 TGeoCombiTrans(*kModuleTransformer->GetTransformation());
976 // New module transformation
977 TGeoCombiTrans newModuleTransform = ReAlign(moduleTransform,lModuleMisAlignment);
978 newModuleTransformer->SetTransformation(newModuleTransform);
980 // Get delta transformation:
981 // Tdelta = Tnew * Told.inverse
982 TGeoHMatrix deltaModuleTransform =
983 AliMUONGeometryBuilder::Multiply(newModuleTransform,
984 kModuleTransformer->GetTransformation()->Inverse());
985 // Create module mis alignment matrix
986 newGeometryTransformer
987 ->AddMisAlignModule(kModuleTransformer->GetModuleId(), deltaModuleTransform);
989 AliMpExMap *detElements = kModuleTransformer->GetDetElementStore();
992 AliInfo(Form("%i DEs in old GeometryStore %i",detElements->GetSize(), iMt));
994 for (Int_t iDe = 0; iDe < detElements->GetSize(); iDe++) {
995 // detection elements.
996 AliMUONGeometryDetElement *detElement =
997 (AliMUONGeometryDetElement *) detElements->GetObject(iDe);
999 AliFatal("Detection element not found.");
1001 /// make a new detection element
1002 AliMUONGeometryDetElement *newDetElement =
1003 new AliMUONGeometryDetElement(detElement->GetId(),
1004 detElement->GetVolumePath());
1005 TString lDetElemName(detElement->GetDEName());
1006 lDetElemName.ReplaceAll("DE","");
1007 iDetElemId = lDetElemName.Atoi();
1008 iDetElemNumber = iDetElemId%100;
1009 for (int iCh=0; iCh<iDetElemId/100-1; iCh++){
1010 iDetElemNumber += fgNDetElemCh[iCh];
1012 for (int i=0; i<fgNParCh; i++) {
1013 lDetElemMisAlignment[i] = 0.0;
1014 if (iMt<fgNTrkMod) {
1015 AliInfo(Form("iMt %i, iCh %i, iDe %i, iDeId %i, iDeNb %i, iPar %i",iMt, iDetElemId/100, iDe, iDetElemId, iDetElemNumber, iDetElemNumber*fgNParCh+i));
1016 lDetElemMisAlignment[i] = misAlignments[iDetElemNumber*fgNParCh+i];
1019 // local transformation of this detection element.
1020 TGeoCombiTrans localTransform
1021 = TGeoCombiTrans(*detElement->GetLocalTransformation());
1022 TGeoCombiTrans newLocalTransform = ReAlign(localTransform,lDetElemMisAlignment);
1023 newDetElement->SetLocalTransformation(newLocalTransform);
1025 // global transformation
1026 TGeoHMatrix newGlobalTransform =
1027 AliMUONGeometryBuilder::Multiply(newModuleTransform,
1029 newDetElement->SetGlobalTransformation(newGlobalTransform);
1031 // add this det element to module
1032 newModuleTransformer->GetDetElementStore()->Add(newDetElement->GetId(),
1035 // In the Alice Alignment Framework misalignment objects store
1036 // global delta transformation
1037 // Get detection "intermediate" global transformation
1038 TGeoHMatrix newOldGlobalTransform = newModuleTransform * localTransform;
1039 // Get detection element global delta transformation:
1040 // Tdelta = Tnew * Told.inverse
1041 TGeoHMatrix deltaGlobalTransform
1042 = AliMUONGeometryBuilder::Multiply(newGlobalTransform,
1043 newOldGlobalTransform.Inverse());
1045 // Create mis alignment matrix
1046 newGeometryTransformer
1047 ->AddMisAlignDetElement(detElement->GetId(), deltaGlobalTransform);
1051 AliInfo(Form("Added module transformer %i to the transformer", iMt));
1052 newGeometryTransformer->AddModuleTransformer(newModuleTransformer);
1054 return newGeometryTransformer;