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 AliMUONAlignmentV5
20 /// Alignment class fro 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 hit and fill the corresponding local equations. Provide methods for
25 /// 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 "AliMUONHitForRec.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()
72 fNGlobal(fgNDetElem*fgNParCh),
82 /// Default constructor, setting define alignment parameters
86 fDoF[0] = kTRUE; fDoF[1] = kTRUE; fDoF[2] = kTRUE;
87 fAllowVar[0] = 0.05; fAllowVar[1] = 0.05; fAllowVar[2] = 0.001;
89 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));
91 fMillepede = new AliMillepede();
93 Init(fNGlobal, fNLocal, fNStdDev);
96 AliInfo("Parameters initialized to zero");
100 AliMUONAlignment::~AliMUONAlignment() {
104 void AliMUONAlignment::Init(Int_t nGlobal, /* number of global paramers */
105 Int_t nLocal, /* number of local parameters */
106 Int_t nStdDev /* std dev cut */ )
108 /// Initialization of AliMillepede. Fix parameters, define constraints ...
109 fMillepede->InitMille(nGlobal,nLocal,nStdDev,fResCut,fResCutInitial);
111 Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
112 Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE};
114 AllowVariations(bStOnOff);
116 // Fix parameters or add constraints here
117 for (Int_t iSt=0; iSt<5; iSt++)
118 if (!bStOnOff[iSt]) FixStation(iSt+1);
120 FixHalfSpectrometer(bStOnOff,bSpecLROnOff);
124 // Define global constrains to be applied
125 // X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY
126 Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
127 Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE};
128 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR,bSpecLROnOff);
130 // Other possible way to add constrains
131 bVarXYT[0] = kFALSE; bVarXYT[1] = kFALSE; bVarXYT[2] = kTRUE;
132 bDetTLBR[0] = kFALSE; bDetTLBR[1] = kTRUE; bDetTLBR[2] = kFALSE; bDetTLBR[3] = kFALSE;
133 // AddConstraints(bStOnOff,bVarXYT,bDetTLBR);
135 bVarXYT[0] = kTRUE; bVarXYT[1] = kTRUE; bVarXYT[2] = kFALSE;
136 // AddConstraints(bStOnOff,bVarXYT);
139 if (fStartFac>1) fMillepede->SetIterations(fStartFac);
142 void AliMUONAlignment::FixStation(Int_t iSt){
143 /// Fix all detection elements of station iSt
144 Int_t iDetElemFirst = (iSt>1) ? fgSNDetElemCh[2*(iSt-1)-1] : 0;
145 Int_t iDetElemLast = fgSNDetElemCh[2*(iSt)-1];
146 for (Int_t i = iDetElemFirst; i < iDetElemLast; i++){
147 FixParameter(i*fgNParCh+0, 0.0);
148 FixParameter(i*fgNParCh+1, 0.0);
149 FixParameter(i*fgNParCh+2, 0.0);
153 void AliMUONAlignment::FixHalfSpectrometer(Bool_t *lStOnOff, Bool_t *lSpecLROnOff){
154 /// Fix left or right detector
155 for (Int_t i = 0; i < fgNDetElem; i++){
157 for (iCh=1; iCh<=fgNCh; iCh++){
158 if (i<fgSNDetElemCh[iCh-1]) break;
160 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
162 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
163 if (iCh>=1 && iCh<=4){
164 if ((lDetElemNumber==1 || lDetElemNumber==2) && !lSpecLROnOff[0]){ // From track crossings
165 FixParameter(i*fgNParCh+0, 0.0);
166 FixParameter(i*fgNParCh+1, 0.0);
167 FixParameter(i*fgNParCh+2, 0.0);
169 if ((lDetElemNumber==0 || lDetElemNumber==3) && !lSpecLROnOff[1]){ // From track crossings
170 FixParameter(i*fgNParCh+0, 0.0);
171 FixParameter(i*fgNParCh+1, 0.0);
172 FixParameter(i*fgNParCh+2, 0.0);
175 if (iCh>=5 && iCh<=6){
176 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && !lSpecLROnOff[0]){
177 FixParameter(i*fgNParCh+0, 0.0);
178 FixParameter(i*fgNParCh+1, 0.0);
179 FixParameter(i*fgNParCh+2, 0.0);
181 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
182 (lDetElemNumber>=14&&lDetElemNumber<=17)) && !lSpecLROnOff[1]){
183 FixParameter(i*fgNParCh+0, 0.0);
184 FixParameter(i*fgNParCh+1, 0.0);
185 FixParameter(i*fgNParCh+2, 0.0);
188 if (iCh>=7 && iCh<=10){
189 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && !lSpecLROnOff[0]){
190 FixParameter(i*fgNParCh+0, 0.0);
191 FixParameter(i*fgNParCh+1, 0.0);
192 FixParameter(i*fgNParCh+2, 0.0);
194 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
195 (lDetElemNumber>=20&&lDetElemNumber<=25)) && !lSpecLROnOff[1]){
196 FixParameter(i*fgNParCh+0, 0.0);
197 FixParameter(i*fgNParCh+1, 0.0);
198 FixParameter(i*fgNParCh+2, 0.0);
205 void AliMUONAlignment::SetNonLinear(Bool_t *lStOnOff,Bool_t *lVarXYT){
206 /// Set non linear parameter flag selected stations and degrees of freedom
207 for (Int_t i = 0; i < fgNDetElem; i++){
209 for (iCh=1; iCh<=fgNCh; iCh++){
210 if (i<fgSNDetElemCh[iCh-1]) break;
212 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
214 if (lVarXYT[0]) { // X constraint
215 SetNonLinear(i*fgNParCh+0);
217 if (lVarXYT[1]) { // Y constraint
218 SetNonLinear(i*fgNParCh+1);
220 if (lVarXYT[2]) { // T constraint
221 SetNonLinear(i*fgNParCh+2);
227 void AliMUONAlignment::AddConstraints(Bool_t *lStOnOff,Bool_t *lVarXYT){
228 /// Add constraint equations for selected stations and degrees of freedom
229 for (Int_t i = 0; i < fgNDetElem; i++){
231 for (iCh=1; iCh<=fgNCh; iCh++){
232 if (i<fgSNDetElemCh[iCh-1]) break;
234 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
236 if (lVarXYT[0]) { // X constraint
237 fConstraintX[i*fgNParCh+0]=1.0;
239 if (lVarXYT[1]) { // Y constraint
240 fConstraintY[i*fgNParCh+1]=1.0;
242 if (lVarXYT[2]) { // T constraint
243 fConstraintP[i*fgNParCh+2]=1.0;
247 if (lVarXYT[0]) { // X constraint
248 AddConstraint(fConstraintX,0.0);
250 if (lVarXYT[1]) { // Y constraint
251 AddConstraint(fConstraintY,0.0);
253 if (lVarXYT[2]) { // T constraint
254 AddConstraint(fConstraintP,0.0);
258 void AliMUONAlignment::AddConstraints(Bool_t *lStOnOff,Bool_t *lVarXYT, Bool_t *lDetTLBR, Bool_t *lSpecLROnOff){
259 /// Add constraint equations for selected stations, degrees of freedom and detector half
260 Double_t lDetElemLocX = 0.;
261 Double_t lDetElemLocY = 0.;
262 Double_t lDetElemLocZ = 0.;
263 Double_t lDetElemGloX = 0.;
264 Double_t lDetElemGloY = 0.;
265 Double_t lDetElemGloZ = 0.;
266 Double_t lMeanY = 0.;
267 Double_t lSigmaY = 0.;
268 Double_t lMeanZ = 0.;
269 Double_t lSigmaZ = 0.;
271 for (Int_t i = 0; i < fgNDetElem; i++){
273 for (iCh=1; iCh<=fgNCh; iCh++){
274 if (i<fgSNDetElemCh[iCh-1]) break;
276 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
278 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
279 Int_t lDetElemId = iCh*100+lDetElemNumber;
280 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
281 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
282 if (iCh>=1 && iCh<=4){
283 if ((lDetElemNumber==1 || lDetElemNumber==2) && lSpecLROnOff[0]){ // From track crossings
284 lMeanY += lDetElemGloY;
285 lSigmaY += lDetElemGloY*lDetElemGloY;
286 lMeanZ += lDetElemGloZ;
287 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
290 if ((lDetElemNumber==0 || lDetElemNumber==3) && lSpecLROnOff[1]){ // From track crossings
291 lMeanY += lDetElemGloY;
292 lSigmaY += lDetElemGloY*lDetElemGloY;
293 lMeanZ += lDetElemGloZ;
294 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
298 if (iCh>=5 && iCh<=6){
299 if ((lDetElemNumber>=5&&lDetElemNumber<=13) && lSpecLROnOff[0]){
300 lMeanY += lDetElemGloY;
301 lSigmaY += lDetElemGloY*lDetElemGloY;
302 lMeanZ += lDetElemGloZ;
303 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
306 if (((lDetElemNumber>=0&&lDetElemNumber<=4) ||
307 (lDetElemNumber>=14&&lDetElemNumber<=17)) && lSpecLROnOff[1]){
308 lMeanY += lDetElemGloY;
309 lSigmaY += lDetElemGloY*lDetElemGloY;
310 lMeanZ += lDetElemGloZ;
311 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
315 if (iCh>=7 && iCh<=10){
316 if ((lDetElemNumber>=7&&lDetElemNumber<=19) && lSpecLROnOff[0]){
317 lMeanY += lDetElemGloY;
318 lSigmaY += lDetElemGloY*lDetElemGloY;
319 lMeanZ += lDetElemGloZ;
320 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
323 if (((lDetElemNumber>=0&&lDetElemNumber<=6) ||
324 (lDetElemNumber>=20&&lDetElemNumber<=25)) && lSpecLROnOff[1]){
325 lMeanY += lDetElemGloY;
326 lSigmaY += lDetElemGloY*lDetElemGloY;
327 lMeanZ += lDetElemGloZ;
328 lSigmaZ += lDetElemGloZ*lDetElemGloZ;
335 lSigmaY /= lNDetElem;
336 lSigmaY = TMath::Sqrt(lSigmaY-lMeanY*lMeanY);
338 lSigmaZ /= lNDetElem;
339 lSigmaZ = TMath::Sqrt(lSigmaZ-lMeanZ*lMeanZ);
340 AliInfo(Form("Used %i DetElem, MeanZ= %f , SigmaZ= %f", lNDetElem,lMeanZ,lSigmaZ));
342 for (Int_t i = 0; i < fgNDetElem; i++){
344 for (iCh=1; iCh<=fgNCh; iCh++){
345 if (i<fgSNDetElemCh[iCh-1]) break;
347 Int_t iSt = lStOnOff[(iCh-1)/2] ? (iCh+1)/2 : 0;
349 Int_t lDetElemNumber = (iCh==1) ? i : i-fgSNDetElemCh[iCh-2];
350 Int_t lDetElemId = iCh*100+lDetElemNumber;
351 fTransform->Local2Global(lDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
352 lDetElemGloX,lDetElemGloY,lDetElemGloZ);
353 if (lVarXYT[0]) { // X constraint
354 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXT,0); // Top half
355 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXL,0); // Left half
356 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXB,0); // Bottom half
357 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXR,0); // Right half
359 if (lVarXYT[1]) { // Y constraint
360 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYT,1); // Top half
361 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYL,1); // Left half
362 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYB,1); // Bottom half
363 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYR,1); // Right half
365 if (lVarXYT[2]) { // P constraint
366 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPT,2); // Top half
367 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPL,2); // Left half
368 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPB,2); // Bottom half
369 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPR,2); // Right half
371 if (lVarXYT[3]) { // X-Z shearing
372 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXZT,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
373 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXZL,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
374 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXZB,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
375 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXZR,0,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
377 if (lVarXYT[4]) { // Y-Z shearing
378 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYZT,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
379 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYZL,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
380 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYZB,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
381 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYZR,1,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
383 if (lVarXYT[5]) { // P-Z rotation
384 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPZT,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Top half
385 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPZL,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Left half
386 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPZB,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Bottom half
387 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPZR,2,(lDetElemGloZ-lMeanZ)/lSigmaZ); // Right half
389 if (lVarXYT[6]) { // X-Y shearing
390 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintXYT,0,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
391 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintXYL,0,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
392 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintXYB,0,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
393 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintXYR,0,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
395 if (lVarXYT[7]) { // Y-Y scaling
396 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintYYT,1,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
397 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintYYL,1,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
398 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintYYB,1,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
399 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintYYR,1,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
401 if (lVarXYT[8]) { // P-Y rotation
402 if (lDetTLBR[0]) ConstrainT(i,iCh,fConstraintPYT,2,(lDetElemGloY-lMeanY)/lSigmaY); // Top half
403 if (lDetTLBR[1]) ConstrainL(i,iCh,fConstraintPYL,2,(lDetElemGloY-lMeanY)/lSigmaY); // Left half
404 if (lDetTLBR[2]) ConstrainB(i,iCh,fConstraintPYB,2,(lDetElemGloY-lMeanY)/lSigmaY); // Bottom half
405 if (lDetTLBR[3]) ConstrainR(i,iCh,fConstraintPYR,2,(lDetElemGloY-lMeanY)/lSigmaY); // Right half
409 if (lVarXYT[0]) { // X constraint
410 if (lDetTLBR[0]) AddConstraint(fConstraintXT,0.0); // Top half
411 if (lDetTLBR[1]) AddConstraint(fConstraintXL,0.0); // Left half
412 if (lDetTLBR[2]) AddConstraint(fConstraintXB,0.0); // Bottom half
413 if (lDetTLBR[3]) AddConstraint(fConstraintXR,0.0); // Right half
415 if (lVarXYT[1]) { // Y constraint
416 if (lDetTLBR[0]) AddConstraint(fConstraintYT,0.0); // Top half
417 if (lDetTLBR[1]) AddConstraint(fConstraintYL,0.0); // Left half
418 if (lDetTLBR[2]) AddConstraint(fConstraintYB,0.0); // Bottom half
419 if (lDetTLBR[3]) AddConstraint(fConstraintYR,0.0); // Right half
421 if (lVarXYT[2]) { // T constraint
422 if (lDetTLBR[0]) AddConstraint(fConstraintPT,0.0); // Top half
423 if (lDetTLBR[1]) AddConstraint(fConstraintPL,0.0); // Left half
424 if (lDetTLBR[2]) AddConstraint(fConstraintPB,0.0); // Bottom half
425 if (lDetTLBR[3]) AddConstraint(fConstraintPR,0.0); // Right half
427 if (lVarXYT[3]) { // X-Z constraint
428 if (lDetTLBR[0]) AddConstraint(fConstraintXZT,0.0); // Top half
429 if (lDetTLBR[1]) AddConstraint(fConstraintXZL,0.0); // Left half
430 if (lDetTLBR[2]) AddConstraint(fConstraintXZB,0.0); // Bottom half
431 if (lDetTLBR[3]) AddConstraint(fConstraintXZR,0.0); // Right half
433 if (lVarXYT[4]) { // Y-Z constraint
434 if (lDetTLBR[0]) AddConstraint(fConstraintYZT,0.0); // Top half
435 if (lDetTLBR[1]) AddConstraint(fConstraintYZL,0.0); // Left half
436 if (lDetTLBR[2]) AddConstraint(fConstraintYZB,0.0); // Bottom half
437 if (lDetTLBR[3]) AddConstraint(fConstraintYZR,0.0); // Right half
439 if (lVarXYT[5]) { // P-Z constraint
440 if (lDetTLBR[0]) AddConstraint(fConstraintPZT,0.0); // Top half
441 if (lDetTLBR[1]) AddConstraint(fConstraintPZL,0.0); // Left half
442 if (lDetTLBR[2]) AddConstraint(fConstraintPZB,0.0); // Bottom half
443 if (lDetTLBR[3]) AddConstraint(fConstraintPZR,0.0); // Right half
445 if (lVarXYT[6]) { // X-Y constraint
446 if (lDetTLBR[0]) AddConstraint(fConstraintXYT,0.0); // Top half
447 if (lDetTLBR[1]) AddConstraint(fConstraintXYL,0.0); // Left half
448 if (lDetTLBR[2]) AddConstraint(fConstraintXYB,0.0); // Bottom half
449 if (lDetTLBR[3]) AddConstraint(fConstraintXYR,0.0); // Right half
451 if (lVarXYT[7]) { // Y-Y constraint
452 if (lDetTLBR[0]) AddConstraint(fConstraintYYT,0.0); // Top half
453 if (lDetTLBR[1]) AddConstraint(fConstraintYYL,0.0); // Left half
454 if (lDetTLBR[2]) AddConstraint(fConstraintYYB,0.0); // Bottom half
455 if (lDetTLBR[3]) AddConstraint(fConstraintYYR,0.0); // Right half
457 if (lVarXYT[8]) { // P-Y constraint
458 if (lDetTLBR[0]) AddConstraint(fConstraintPYT,0.0); // Top half
459 if (lDetTLBR[1]) AddConstraint(fConstraintPYL,0.0); // Left half
460 if (lDetTLBR[2]) AddConstraint(fConstraintPYB,0.0); // Bottom half
461 if (lDetTLBR[3]) AddConstraint(fConstraintPYR,0.0); // Right half
465 void AliMUONAlignment::ConstrainT(Int_t lDetElem, Int_t lCh, Double_t *lConstraintT, Int_t iVar, Double_t /*lWeight*/){
466 /// Set constrain equation for top half of spectrometer
467 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
468 if (lCh>=1 && lCh<=4){
469 if (lDetElemNumber==0 || lDetElemNumber==1){ // From track crossings
470 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
473 if (lCh>=5 && lCh<=6){
474 if (lDetElemNumber>=0&&lDetElemNumber<=9){
475 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
478 if (lCh>=7 && lCh<=10){
479 if (lDetElemNumber>=0&&lDetElemNumber<=13){
480 lConstraintT[lDetElem*fgNParCh+iVar]=1.0;
485 void AliMUONAlignment::ConstrainL(Int_t lDetElem, Int_t lCh, Double_t *lConstraintL, Int_t iVar, Double_t lWeight){
486 /// Set constrain equation for left half of spectrometer
487 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
488 if (lCh>=1 && lCh<=4){
489 if (lDetElemNumber==1 || lDetElemNumber==2){ // From track crossings
490 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
493 if (lCh>=5 && lCh<=6){
494 if (lDetElemNumber>=5&&lDetElemNumber<=13){
495 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
498 if (lCh>=7 && lCh<=10){
499 if (lDetElemNumber>=7&&lDetElemNumber<=19){
500 lConstraintL[lDetElem*fgNParCh+iVar]=lWeight;
505 void AliMUONAlignment::ConstrainB(Int_t lDetElem, Int_t lCh, Double_t *lConstraintB, Int_t iVar, Double_t /*lWeight*/){
506 /// Set constrain equation for bottom half of spectrometer
507 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
508 if (lCh>=1 && lCh<=4){
509 if (lDetElemNumber==2 || lDetElemNumber==3){ // From track crossings
510 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
513 if (lCh>=5 && lCh<=6){
514 if ((lDetElemNumber>=9&&lDetElemNumber<=17) ||
515 (lDetElemNumber==0)){
516 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
519 if (lCh>=7 && lCh<=10){
520 if ((lDetElemNumber>=13&&lDetElemNumber<=25) ||
521 (lDetElemNumber==0)){
522 lConstraintB[lDetElem*fgNParCh+iVar]=1.0;
527 void AliMUONAlignment::ConstrainR(Int_t lDetElem, Int_t lCh, Double_t *lConstraintR, Int_t iVar, Double_t lWeight){
528 /// Set constrain equation for right half of spectrometer
529 Int_t lDetElemNumber = (lCh==1) ? lDetElem : lDetElem-fgSNDetElemCh[lCh-2];
530 if (lCh>=1 && lCh<=4){
531 if (lDetElemNumber==0 || lDetElemNumber==3){ // From track crossings
532 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
535 if (lCh>=5 && lCh<=6){
536 if ((lDetElemNumber>=0&&lDetElemNumber<=4) ||
537 (lDetElemNumber>=14&&lDetElemNumber<=17)){
538 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
541 if (lCh>=7 && lCh<=10){
542 if ((lDetElemNumber>=0&&lDetElemNumber<=6) ||
543 (lDetElemNumber>=20&&lDetElemNumber<=25)){
544 lConstraintR[lDetElem*fgNParCh+iVar]=lWeight;
549 void AliMUONAlignment::ResetConstraints(){
550 /// Reset all constraint equations
551 for (Int_t i = 0; i < fgNDetElem; i++){
552 fConstraintX[i*fgNParCh+0]=0.0;
553 fConstraintX[i*fgNParCh+1]=0.0;
554 fConstraintX[i*fgNParCh+2]=0.0;
555 fConstraintY[i*fgNParCh+0]=0.0;
556 fConstraintY[i*fgNParCh+1]=0.0;
557 fConstraintY[i*fgNParCh+2]=0.0;
558 fConstraintP[i*fgNParCh+0]=0.0;
559 fConstraintP[i*fgNParCh+1]=0.0;
560 fConstraintP[i*fgNParCh+2]=0.0;
561 fConstraintXT[i*fgNParCh+0]=0.0;
562 fConstraintXT[i*fgNParCh+1]=0.0;
563 fConstraintXT[i*fgNParCh+2]=0.0;
564 fConstraintYT[i*fgNParCh+0]=0.0;
565 fConstraintYT[i*fgNParCh+1]=0.0;
566 fConstraintYT[i*fgNParCh+2]=0.0;
567 fConstraintPT[i*fgNParCh+0]=0.0;
568 fConstraintPT[i*fgNParCh+1]=0.0;
569 fConstraintPT[i*fgNParCh+2]=0.0;
570 fConstraintXZT[i*fgNParCh+0]=0.0;
571 fConstraintXZT[i*fgNParCh+1]=0.0;
572 fConstraintXZT[i*fgNParCh+2]=0.0;
573 fConstraintYZT[i*fgNParCh+0]=0.0;
574 fConstraintYZT[i*fgNParCh+1]=0.0;
575 fConstraintYZT[i*fgNParCh+2]=0.0;
576 fConstraintPZT[i*fgNParCh+0]=0.0;
577 fConstraintPZT[i*fgNParCh+1]=0.0;
578 fConstraintPZT[i*fgNParCh+2]=0.0;
579 fConstraintXYT[i*fgNParCh+0]=0.0;
580 fConstraintXYT[i*fgNParCh+1]=0.0;
581 fConstraintXYT[i*fgNParCh+2]=0.0;
582 fConstraintYYT[i*fgNParCh+0]=0.0;
583 fConstraintYYT[i*fgNParCh+1]=0.0;
584 fConstraintYYT[i*fgNParCh+2]=0.0;
585 fConstraintPYT[i*fgNParCh+0]=0.0;
586 fConstraintPYT[i*fgNParCh+1]=0.0;
587 fConstraintPYT[i*fgNParCh+2]=0.0;
588 fConstraintXL[i*fgNParCh+0]=0.0;
589 fConstraintXL[i*fgNParCh+1]=0.0;
590 fConstraintXL[i*fgNParCh+2]=0.0;
591 fConstraintYL[i*fgNParCh+0]=0.0;
592 fConstraintYL[i*fgNParCh+1]=0.0;
593 fConstraintYL[i*fgNParCh+2]=0.0;
594 fConstraintPL[i*fgNParCh+0]=0.0;
595 fConstraintPL[i*fgNParCh+1]=0.0;
596 fConstraintPL[i*fgNParCh+2]=0.0;
597 fConstraintXZL[i*fgNParCh+0]=0.0;
598 fConstraintXZL[i*fgNParCh+1]=0.0;
599 fConstraintXZL[i*fgNParCh+2]=0.0;
600 fConstraintYZL[i*fgNParCh+0]=0.0;
601 fConstraintYZL[i*fgNParCh+1]=0.0;
602 fConstraintYZL[i*fgNParCh+2]=0.0;
603 fConstraintPZL[i*fgNParCh+0]=0.0;
604 fConstraintPZL[i*fgNParCh+1]=0.0;
605 fConstraintPZL[i*fgNParCh+2]=0.0;
606 fConstraintXYL[i*fgNParCh+0]=0.0;
607 fConstraintXYL[i*fgNParCh+1]=0.0;
608 fConstraintXYL[i*fgNParCh+2]=0.0;
609 fConstraintYYL[i*fgNParCh+0]=0.0;
610 fConstraintYYL[i*fgNParCh+1]=0.0;
611 fConstraintYYL[i*fgNParCh+2]=0.0;
612 fConstraintPYL[i*fgNParCh+0]=0.0;
613 fConstraintPYL[i*fgNParCh+1]=0.0;
614 fConstraintPYL[i*fgNParCh+2]=0.0;
615 fConstraintXB[i*fgNParCh+0]=0.0;
616 fConstraintXB[i*fgNParCh+1]=0.0;
617 fConstraintXB[i*fgNParCh+2]=0.0;
618 fConstraintYB[i*fgNParCh+0]=0.0;
619 fConstraintYB[i*fgNParCh+1]=0.0;
620 fConstraintYB[i*fgNParCh+2]=0.0;
621 fConstraintPB[i*fgNParCh+0]=0.0;
622 fConstraintPB[i*fgNParCh+1]=0.0;
623 fConstraintPB[i*fgNParCh+2]=0.0;
624 fConstraintXZB[i*fgNParCh+0]=0.0;
625 fConstraintXZB[i*fgNParCh+1]=0.0;
626 fConstraintXZB[i*fgNParCh+2]=0.0;
627 fConstraintYZB[i*fgNParCh+0]=0.0;
628 fConstraintYZB[i*fgNParCh+1]=0.0;
629 fConstraintYZB[i*fgNParCh+2]=0.0;
630 fConstraintPZB[i*fgNParCh+0]=0.0;
631 fConstraintPZB[i*fgNParCh+1]=0.0;
632 fConstraintPZB[i*fgNParCh+2]=0.0;
633 fConstraintXYB[i*fgNParCh+0]=0.0;
634 fConstraintXYB[i*fgNParCh+1]=0.0;
635 fConstraintXYB[i*fgNParCh+2]=0.0;
636 fConstraintYYB[i*fgNParCh+0]=0.0;
637 fConstraintYYB[i*fgNParCh+1]=0.0;
638 fConstraintYYB[i*fgNParCh+2]=0.0;
639 fConstraintPYB[i*fgNParCh+0]=0.0;
640 fConstraintPYB[i*fgNParCh+1]=0.0;
641 fConstraintPYB[i*fgNParCh+2]=0.0;
642 fConstraintXR[i*fgNParCh+0]=0.0;
643 fConstraintXR[i*fgNParCh+1]=0.0;
644 fConstraintXR[i*fgNParCh+2]=0.0;
645 fConstraintYR[i*fgNParCh+0]=0.0;
646 fConstraintYR[i*fgNParCh+1]=0.0;
647 fConstraintYR[i*fgNParCh+2]=0.0;
648 fConstraintPR[i*fgNParCh+0]=0.0;
649 fConstraintPR[i*fgNParCh+1]=0.0;
650 fConstraintPR[i*fgNParCh+2]=0.0;
651 fConstraintXZR[i*fgNParCh+0]=0.0;
652 fConstraintXZR[i*fgNParCh+1]=0.0;
653 fConstraintXZR[i*fgNParCh+2]=0.0;
654 fConstraintYZR[i*fgNParCh+0]=0.0;
655 fConstraintYZR[i*fgNParCh+1]=0.0;
656 fConstraintYZR[i*fgNParCh+2]=0.0;
657 fConstraintPZR[i*fgNParCh+0]=0.0;
658 fConstraintPZR[i*fgNParCh+1]=0.0;
659 fConstraintPZR[i*fgNParCh+2]=0.0;
660 fConstraintPZR[i*fgNParCh+0]=0.0;
661 fConstraintPZR[i*fgNParCh+1]=0.0;
662 fConstraintPZR[i*fgNParCh+2]=0.0;
663 fConstraintXYR[i*fgNParCh+0]=0.0;
664 fConstraintXYR[i*fgNParCh+1]=0.0;
665 fConstraintXYR[i*fgNParCh+2]=0.0;
666 fConstraintYYR[i*fgNParCh+0]=0.0;
667 fConstraintYYR[i*fgNParCh+1]=0.0;
668 fConstraintYYR[i*fgNParCh+2]=0.0;
669 fConstraintPYR[i*fgNParCh+0]=0.0;
670 fConstraintPYR[i*fgNParCh+1]=0.0;
671 fConstraintPYR[i*fgNParCh+2]=0.0;
675 void AliMUONAlignment::AddConstraint(Double_t *par, Double_t value) {
676 /// Constrain equation defined by par to value
677 fMillepede->SetGlobalConstraint(par, value);
678 AliInfo("Adding constraint");
681 void AliMUONAlignment::InitGlobalParameters(Double_t *par) {
682 /// Initialize global parameters with par array
683 fMillepede->SetGlobalParameters(par);
684 AliInfo("Init Global Parameters");
687 void AliMUONAlignment::FixParameter(Int_t iPar, Double_t value) {
688 /// Parameter iPar is encourage to vary in [-value;value].
689 /// If value == 0, parameter is fixed
690 fMillepede->SetParSigma(iPar, value);
691 if (value==0) AliInfo(Form("Parameter %i Fixed", iPar));
694 void AliMUONAlignment::ResetLocalEquation()
696 /// Reset the derivative vectors
697 for(int i=0; i<fNLocal; i++) {
698 fLocalDerivatives[i] = 0.0;
700 for(int i=0; i<fNGlobal; i++) {
701 fGlobalDerivatives[i] = 0.0;
705 void AliMUONAlignment::AllowVariations(Bool_t *bStOnOff) {
706 /// Set allowed variation for selected stations based on fDoF and fAllowVar
707 for (Int_t iSt=1; iSt<=5; iSt++) {
708 if (bStOnOff[iSt-1]) {
709 Int_t iDetElemFirst = (iSt>1) ? fgSNDetElemCh[2*(iSt-1)-1] : 0;
710 Int_t iDetElemLast = fgSNDetElemCh[2*(iSt)-1];
711 for (int i=0; i<fgNParCh; i++) {
712 AliDebug(1,Form("fDoF[%d]= %d",i,fDoF[i]));
714 for (Int_t j=iDetElemFirst; j<iDetElemLast; j++){
715 FixParameter(j*fgNParCh+i, fAllowVar[i]);
723 void AliMUONAlignment::SetNonLinear(Int_t iPar /* set non linear flag */ ) {
724 /// Set nonlinear flag for parameter iPar
725 fMillepede->SetNonLinear(iPar);
726 AliInfo(Form("Parameter %i set to non linear", iPar));
729 void AliMUONAlignment::LocalEquationX() {
730 /// Define local equation for current track and hit in x coor. measurement
731 // set local derivatives
732 SetLocalDerivative(0, fCosPhi);
733 SetLocalDerivative(1, fCosPhi * (fTrackPos[2] - fTrackPos0[2]));
734 SetLocalDerivative(2, fSinPhi);
735 SetLocalDerivative(3, fSinPhi * (fTrackPos[2] - fTrackPos0[2]));
737 // set global derivatives
738 SetGlobalDerivative(fDetElemNumber*fgNParCh+0, -fCosPhi);
739 SetGlobalDerivative(fDetElemNumber*fgNParCh+1, -fSinPhi);
741 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
742 -fSinPhi*(fTrackPos[0]-fDetElemPos[0])
743 +fCosPhi*(fTrackPos[1]-fDetElemPos[1]));
746 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
747 -fSinPhi*(fTrackPos0[0]+fTrackSlope0[0]*
748 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
749 +fCosPhi*(fTrackPos0[1]+fTrackSlope0[1]*
750 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]));
753 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, fMeas[0], fSigma[0]);
756 void AliMUONAlignment::LocalEquationY() {
757 /// Define local equation for current track and hit in y coor. measurement
758 // set local derivatives
759 SetLocalDerivative(0,-fSinPhi);
760 SetLocalDerivative(1,-fSinPhi * (fTrackPos[2] - fTrackPos0[2]));
761 SetLocalDerivative(2, fCosPhi);
762 SetLocalDerivative(3, fCosPhi * (fTrackPos[2] - fTrackPos0[2]));
764 // set global derivatives
765 SetGlobalDerivative(fDetElemNumber*fgNParCh+0, fSinPhi);
766 SetGlobalDerivative(fDetElemNumber*fgNParCh+1, -fCosPhi);
768 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
769 -fCosPhi*(fTrackPos[0]-fDetElemPos[0])
770 -fSinPhi*(fTrackPos[1]-fDetElemPos[1]));
773 SetGlobalDerivative(fDetElemNumber*fgNParCh+2,
774 -fCosPhi*(fTrackPos0[0]+fTrackSlope0[0]*
775 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[0])
776 -fSinPhi*(fTrackPos0[1]+fTrackSlope0[1]*
777 (fTrackPos[2]-fTrackPos0[2])-fDetElemPos[1]));
780 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, fMeas[1], fSigma[1]);
783 void AliMUONAlignment::FillRecPointData() {
784 /// Get information of current hit
785 fClustPos[0] = fRecHit->GetNonBendingCoor();
786 fClustPos[1] = fRecHit->GetBendingCoor();
787 fClustPos[2] = fRecHit->GetZ();
788 fTransform->Global2Local(fDetElemId,fClustPos[0],fClustPos[1],fClustPos[2],
789 fClustPosLoc[0],fClustPosLoc[1],fClustPosLoc[2]);
792 void AliMUONAlignment::FillTrackParamData() {
793 /// Get information of current track at current hit
794 fTrackPos[0] = fTrackParam->GetNonBendingCoor();
795 fTrackPos[1] = fTrackParam->GetBendingCoor();
796 fTrackPos[2] = fTrackParam->GetZ();
797 fTrackSlope[0] = fTrackParam->GetNonBendingSlope();
798 fTrackSlope[1] = fTrackParam->GetBendingSlope();
799 fTransform->Global2Local(fDetElemId,fTrackPos[0],fTrackPos[1],fTrackPos[2],
800 fTrackPosLoc[0],fTrackPosLoc[1],fTrackPosLoc[2]);
803 void AliMUONAlignment::FillDetElemData() {
804 /// Get information of current detection element
805 Double_t lDetElemLocX = 0.;
806 Double_t lDetElemLocY = 0.;
807 Double_t lDetElemLocZ = 0.;
808 fDetElemId = fRecHit->GetDetElemId();
809 fDetElemNumber = fDetElemId%100;
810 for (int iCh=0; iCh<fDetElemId/100-1; iCh++){
811 fDetElemNumber += fgNDetElemCh[iCh];
813 fTransform->Local2Global(fDetElemId,lDetElemLocX,lDetElemLocY,lDetElemLocZ,
814 fDetElemPos[0],fDetElemPos[1],fDetElemPos[2]);
817 void AliMUONAlignment::ProcessTrack(AliMUONTrack * track) {
818 /// Process track; Loop over hits and set local equations
820 // get tclones arrays.
821 fTrackParamAtHit = fTrack->GetTrackParamAtHit();
822 fHitForRecAtHit = fTrack->GetHitForRecAtHit();
824 // get size of arrays
825 Int_t nTrackParam = fTrackParamAtHit->GetEntries();
826 Int_t nHitForRec = fHitForRecAtHit->GetEntries();
827 AliDebug(1,Form("Number of track param entries : %i ", nTrackParam));
828 AliDebug(1,Form("Number of hit for rec entries : %i ", nHitForRec));
830 for(Int_t iHit=0; iHit<nHitForRec; iHit++) {
831 fRecHit = (AliMUONHitForRec *) fHitForRecAtHit->At(iHit);
832 fTrackParam = (AliMUONTrackParam *) fTrack->GetTrackParamAtHit()->At(iHit);
833 if (!fRecHit || !fTrackParam) continue;
834 // fill local variables for this position --> one measurement
837 FillTrackParamData();
838 // if (fDetElemId<500) continue;
839 fTrackPos0[0] = fTrackPos[0];
840 fTrackPos0[1] = fTrackPos[1];
841 fTrackPos0[2] = fTrackPos[2];
842 fTrackSlope0[0] = fTrackSlope[0];
843 fTrackSlope0[1] = fTrackSlope[1];
847 for(Int_t iHit=0; iHit<nHitForRec; iHit++) {
848 // and get new pointers
849 fRecHit = (AliMUONHitForRec *) fHitForRecAtHit->At(iHit);
850 fTrackParam = (AliMUONTrackParam *) fTrack->GetTrackParamAtHit()->At(iHit);
851 if (!fRecHit || !fTrackParam) continue;
852 // fill local variables for this position --> one measurement
855 FillTrackParamData();
856 // if (fDetElemId<500) continue;
857 AliDebug(1,Form("cluster: %i", iHit));
858 AliDebug(1,Form("x: %f\t y: %f\t z: %f\t DetElemID: %i\t ", fClustPos[0], fClustPos[1], fClustPos[2], fDetElemId));
859 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));
861 AliDebug(1,Form("Track Parameter: %i", iHit));
862 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]));
863 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]));
865 fCosPhi = TMath::Cos(fPhi);
866 fSinPhi = TMath::Sin(fPhi);
868 fMeas[0] = fTrackPos[0] - fClustPos[0];
869 fMeas[1] = fTrackPos[1] - fClustPos[1];
872 fMeas[0] = - fClustPos[0];
873 fMeas[1] = - fClustPos[1];
875 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]));
876 // Set local equations
882 void AliMUONAlignment::LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t lSingleFit) {
883 /// Call local fit for this tracks
884 Int_t iRes = fMillepede->LocalFit(iTrack,lTrackParam,lSingleFit);
885 if (iRes && !lSingleFit) {
886 fMillepede->SetNLocalEquations(fMillepede->GetNLocalEquations()+1);
890 void AliMUONAlignment::GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls) {
891 /// Call global fit; Global parameters are stored in parameters
892 fMillepede->GlobalFit(parameters,errors,pulls);
894 AliInfo("Done fitting global parameters!");
895 for (int iGlob=0; iGlob<fgNDetElem; iGlob++){
896 printf("%d\t %f\t %f\t %f \n",iGlob,parameters[iGlob*fgNParCh+0],parameters[iGlob*fgNParCh+1],parameters[iGlob*fgNParCh+2]);
900 Double_t AliMUONAlignment::GetParError(Int_t iPar) {
901 /// Get error of parameter iPar
902 Double_t lErr = fMillepede->GetParError(iPar);
906 void AliMUONAlignment::PrintGlobalParameters() {
907 /// Print global parameters
908 fMillepede->PrintGlobalParameters();
911 //_________________________________________________________________________
912 TGeoCombiTrans AliMUONAlignment::ReAlign(const TGeoCombiTrans & transform, double *lMisAlignment) const
914 /// Realign given transformation by given misalignment and return the misaligned transformation
916 Double_t cartMisAlig[3] = {0,0,0};
917 Double_t angMisAlig[3] = {0,0,0};
918 // const Double_t *trans = transform.GetTranslation();
919 // TGeoRotation *rot;
920 // // check if the rotation we obtain is not NULL
921 // if (transform.GetRotation()) {
922 // rot = transform.GetRotation();
925 // rot = new TGeoRotation("rot");
926 // } // default constructor.
928 cartMisAlig[0] = -lMisAlignment[0];
929 cartMisAlig[1] = -lMisAlignment[1];
930 angMisAlig[2] = -lMisAlignment[2]*180./TMath::Pi();
932 TGeoTranslation deltaTrans(cartMisAlig[0], cartMisAlig[1], cartMisAlig[2]);
933 TGeoRotation deltaRot;
934 deltaRot.RotateX(angMisAlig[0]);
935 deltaRot.RotateY(angMisAlig[1]);
936 deltaRot.RotateZ(angMisAlig[2]);
938 TGeoCombiTrans deltaTransf(deltaTrans,deltaRot);
939 TGeoHMatrix newTransfMat = transform * deltaTransf;
941 return TGeoCombiTrans(newTransfMat);
944 //______________________________________________________________________
945 AliMUONGeometryTransformer *
946 AliMUONAlignment::ReAlign(const AliMUONGeometryTransformer * transformer,
947 double *misAlignments, Bool_t verbose)
950 /////////////////////////////////////////////////////////////////////
951 // Takes the internal geometry module transformers, copies them
952 // and gets the Detection Elements from them.
953 // Takes misalignment parameters and applies these
954 // to the local transform of the Detection Element
955 // Obtains the global transform by multiplying the module transformer
956 // transformation with the local transformation
957 // Applies the global transform to a new detection element
958 // Adds the new detection element to a new module transformer
959 // Adds the new module transformer to a new geometry transformer
960 // Returns the new geometry transformer
962 Double_t lModuleMisAlignment[3] = {0.,0.,0.};
963 Double_t lDetElemMisAlignment[3] = {0.,0.,0.};
964 Int_t iDetElemId = 0;
965 Int_t iDetElemNumber = 0;
967 AliMUONGeometryTransformer *newGeometryTransformer =
968 new AliMUONGeometryTransformer();
969 for (Int_t iMt = 0; iMt < transformer->GetNofModuleTransformers(); iMt++) {
970 // module transformers
971 const AliMUONGeometryModuleTransformer *kModuleTransformer =
972 transformer->GetModuleTransformer(iMt, true);
974 AliMUONGeometryModuleTransformer *newModuleTransformer =
975 new AliMUONGeometryModuleTransformer(iMt);
976 newGeometryTransformer->AddModuleTransformer(newModuleTransformer);
978 TGeoCombiTrans moduleTransform =
979 TGeoCombiTrans(*kModuleTransformer->GetTransformation());
980 // New module transformation
981 TGeoCombiTrans newModuleTransform = ReAlign(moduleTransform,lModuleMisAlignment);
982 newModuleTransformer->SetTransformation(newModuleTransform);
984 // Get delta transformation:
985 // Tdelta = Tnew * Told.inverse
986 TGeoHMatrix deltaModuleTransform =
987 AliMUONGeometryBuilder::Multiply(newModuleTransform,
988 kModuleTransformer->GetTransformation()->Inverse());
989 // Create module mis alignment matrix
990 newGeometryTransformer
991 ->AddMisAlignModule(kModuleTransformer->GetModuleId(), deltaModuleTransform);
993 AliMpExMap *detElements = kModuleTransformer->GetDetElementStore();
996 AliInfo(Form("%i DEs in old GeometryStore %i",detElements->GetSize(), iMt));
998 for (Int_t iDe = 0; iDe < detElements->GetSize(); iDe++) {
999 // detection elements.
1000 AliMUONGeometryDetElement *detElement =
1001 (AliMUONGeometryDetElement *) detElements->GetObject(iDe);
1003 AliFatal("Detection element not found.");
1005 /// make a new detection element
1006 AliMUONGeometryDetElement *newDetElement =
1007 new AliMUONGeometryDetElement(detElement->GetId(),
1008 detElement->GetVolumePath());
1009 TString lDetElemName(detElement->GetDEName());
1010 lDetElemName.ReplaceAll("DE","");
1011 iDetElemId = lDetElemName.Atoi();
1012 iDetElemNumber = iDetElemId%100;
1013 for (int iCh=0; iCh<iDetElemId/100-1; iCh++){
1014 iDetElemNumber += fgNDetElemCh[iCh];
1016 for (int i=0; i<fgNParCh; i++) {
1017 lDetElemMisAlignment[i] = 0.0;
1018 if (iMt<fgNTrkMod) {
1019 AliInfo(Form("iMt %i, iCh %i, iDe %i, iDeId %i, iDeNb %i, iPar %i",iMt, iDetElemId/100, iDe, iDetElemId, iDetElemNumber, iDetElemNumber*fgNParCh+i));
1020 lDetElemMisAlignment[i] = misAlignments[iDetElemNumber*fgNParCh+i];
1023 // local transformation of this detection element.
1024 TGeoCombiTrans localTransform
1025 = TGeoCombiTrans(*detElement->GetLocalTransformation());
1026 TGeoCombiTrans newLocalTransform = ReAlign(localTransform,lDetElemMisAlignment);
1027 newDetElement->SetLocalTransformation(newLocalTransform);
1029 // global transformation
1030 TGeoHMatrix newGlobalTransform =
1031 AliMUONGeometryBuilder::Multiply(newModuleTransform,
1033 newDetElement->SetGlobalTransformation(newGlobalTransform);
1035 // add this det element to module
1036 newModuleTransformer->GetDetElementStore()->Add(newDetElement->GetId(),
1039 // In the Alice Alignment Framework misalignment objects store
1040 // global delta transformation
1041 // Get detection "intermediate" global transformation
1042 TGeoHMatrix newOldGlobalTransform = newModuleTransform * localTransform;
1043 // Get detection element global delta transformation:
1044 // Tdelta = Tnew * Told.inverse
1045 TGeoHMatrix deltaGlobalTransform
1046 = AliMUONGeometryBuilder::Multiply(newGlobalTransform,
1047 newOldGlobalTransform.Inverse());
1049 // Create mis alignment matrix
1050 newGeometryTransformer
1051 ->AddMisAlignDetElement(detElement->GetId(), deltaGlobalTransform);
1055 AliInfo(Form("Added module transformer %i to the transformer", iMt));
1056 newGeometryTransformer->AddModuleTransformer(newModuleTransformer);
1058 return newGeometryTransformer;