]>
Commit | Line | Data |
---|---|---|
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 | //----------------------------------------------------------------- | |
19 | // Implementation of the alignment object class, holding the alignment | |
20 | // constants for a single volume, through the abstract class AliAlignObj. | |
21 | // From it two derived concrete representation of alignment object class | |
22 | // (AliAlignObjParams, AliAlignObjMatrix) are derived in separate files. | |
23 | //----------------------------------------------------------------- | |
24 | ||
25 | #include <TGeoManager.h> | |
26 | #include <TGeoMatrix.h> | |
27 | #include <TGeoPhysicalNode.h> | |
28 | #include <TGeoOverlap.h> | |
29 | #include <TMath.h> | |
30 | ||
31 | #include "AliAlignObj.h" | |
32 | #include "AliTrackPointArray.h" | |
33 | #include "AliLog.h" | |
34 | ||
35 | ClassImp(AliAlignObj) | |
36 | ||
37 | //_____________________________________________________________________________ | |
38 | AliAlignObj::AliAlignObj(): | |
39 | fVolPath(), | |
40 | fVolUID(0) | |
41 | { | |
42 | // default constructor | |
43 | for(Int_t i=0; i<6; i++) fDiag[i]=-999.; | |
44 | for(Int_t i=0; i<15; i++) fODia[i]=-999.; | |
45 | } | |
46 | ||
47 | //_____________________________________________________________________________ | |
48 | AliAlignObj::AliAlignObj(const char* symname, UShort_t voluid) : | |
49 | TObject(), | |
50 | fVolPath(symname), | |
51 | fVolUID(voluid) | |
52 | { | |
53 | // standard constructor | |
54 | // | |
55 | for(Int_t i=0; i<6; i++) fDiag[i]=-999.; | |
56 | for(Int_t i=0; i<15; i++) fODia[i]=-999.; | |
57 | } | |
58 | ||
59 | //_____________________________________________________________________________ | |
60 | AliAlignObj::AliAlignObj(const char* symname, UShort_t voluid, Double_t* cmat) : | |
61 | TObject(), | |
62 | fVolPath(symname), | |
63 | fVolUID(voluid) | |
64 | { | |
65 | // standard constructor | |
66 | // | |
67 | SetCorrMatrix(cmat); | |
68 | } | |
69 | ||
70 | //_____________________________________________________________________________ | |
71 | AliAlignObj::AliAlignObj(const AliAlignObj& theAlignObj) : | |
72 | TObject(theAlignObj), | |
73 | fVolPath(theAlignObj.GetSymName()), | |
74 | fVolUID(theAlignObj.GetVolUID()) | |
75 | { | |
76 | //copy constructor | |
77 | for(Int_t i=0; i<6; i++) fDiag[i]=theAlignObj.fDiag[i]; | |
78 | for(Int_t i=0; i<15; i++) fODia[i]=theAlignObj.fODia[i]; | |
79 | } | |
80 | ||
81 | //_____________________________________________________________________________ | |
82 | AliAlignObj &AliAlignObj::operator =(const AliAlignObj& theAlignObj) | |
83 | { | |
84 | // assignment operator | |
85 | if(this==&theAlignObj) return *this; | |
86 | fVolPath = theAlignObj.GetSymName(); | |
87 | fVolUID = theAlignObj.GetVolUID(); | |
88 | for(Int_t i=0; i<6; i++) fDiag[i]=theAlignObj.fDiag[i]; | |
89 | for(Int_t i=0; i<15; i++) fODia[i]=theAlignObj.fODia[i]; | |
90 | return *this; | |
91 | } | |
92 | ||
93 | //_____________________________________________________________________________ | |
94 | AliAlignObj &AliAlignObj::operator*=(const AliAlignObj& theAlignObj) | |
95 | { | |
96 | // multiplication operator | |
97 | // The operator can be used to 'combine' | |
98 | // two alignment objects | |
99 | TGeoHMatrix m1; | |
100 | GetMatrix(m1); | |
101 | TGeoHMatrix m2; | |
102 | theAlignObj.GetMatrix(m2); | |
103 | m1.MultiplyLeft(&m2); | |
104 | SetMatrix(m1); | |
105 | // temporary solution: the covariance matrix of the resulting combined object | |
106 | // is set equal to the covariance matrix of the right operand | |
107 | // (not to be used for combining alignment objects for different levels) | |
108 | for(Int_t i=0; i<6; i++) fDiag[i] = theAlignObj.fDiag[i]; | |
109 | for(Int_t i=0; i<15; i++) fODia[i] = theAlignObj.fODia[i]; | |
110 | return *this; | |
111 | } | |
112 | ||
113 | //_____________________________________________________________________________ | |
114 | AliAlignObj::~AliAlignObj() | |
115 | { | |
116 | // dummy destructor | |
117 | } | |
118 | ||
119 | //_____________________________________________________________________________ | |
120 | void AliAlignObj::SetVolUID(AliGeomManager::ELayerID detId, Int_t modId) | |
121 | { | |
122 | // From detector name and module number (according to detector numbering) | |
123 | // build fVolUID, unique numerical identity of that volume inside ALICE | |
124 | // fVolUID is 16 bits, first 5 reserved for detID (32 possible values), | |
125 | // remaining 11 for module ID inside det (2048 possible values). | |
126 | // | |
127 | fVolUID = AliGeomManager::LayerToVolUID(detId,modId); | |
128 | } | |
129 | ||
130 | //_____________________________________________________________________________ | |
131 | void AliAlignObj::GetVolUID(AliGeomManager::ELayerID &layerId, Int_t &modId) const | |
132 | { | |
133 | // From the fVolUID, unique numerical identity of that volume inside ALICE, | |
134 | // (voluid is 16 bits, first 5 reserved for layerID (32 possible values), | |
135 | // remaining 11 for module ID inside det (2048 possible values)), sets | |
136 | // the argument layerId to the identity of the layer to which that volume | |
137 | // belongs and sets the argument modId to the identity of that volume | |
138 | // internally to the layer. | |
139 | // | |
140 | layerId = AliGeomManager::VolUIDToLayer(fVolUID,modId); | |
141 | } | |
142 | ||
143 | //_____________________________________________________________________________ | |
144 | Bool_t AliAlignObj::GetPars(Double_t tr[], Double_t angles[]) const | |
145 | { | |
146 | GetTranslation(tr); | |
147 | return GetAngles(angles); | |
148 | } | |
149 | ||
150 | //_____________________________________________________________________________ | |
151 | Int_t AliAlignObj::GetLevel() const | |
152 | { | |
153 | // Return the geometry level of the alignable volume to which | |
154 | // the alignment object is associated; this is the number of | |
155 | // slashes in the corresponding volume path | |
156 | // | |
157 | if(!gGeoManager){ | |
158 | AliWarning("gGeoManager doesn't exist or it is still open: unable to return meaningful level value."); | |
159 | return (-1); | |
160 | } | |
161 | const char* symname = GetSymName(); | |
162 | const char* path; | |
163 | TGeoPNEntry* pne = gGeoManager->GetAlignableEntry(symname); | |
164 | if(pne){ | |
165 | path = pne->GetTitle(); | |
166 | }else{ | |
167 | path = symname; | |
168 | } | |
169 | ||
170 | TString pathStr = path; | |
171 | if(pathStr[0]!='/') pathStr.Prepend('/'); | |
172 | return pathStr.CountChar('/'); | |
173 | } | |
174 | ||
175 | //_____________________________________________________________________________ | |
176 | Int_t AliAlignObj::Compare(const TObject *obj) const | |
177 | { | |
178 | // Compare the levels of two | |
179 | // alignment objects | |
180 | // Used in the sorting during | |
181 | // the application of alignment | |
182 | // objects to the geometry | |
183 | // | |
184 | Int_t level = GetLevel(); | |
185 | Int_t level2 = ((AliAlignObj *)obj)->GetLevel(); | |
186 | if (level == level2) | |
187 | return 0; | |
188 | else | |
189 | return ((level > level2) ? 1 : -1); | |
190 | } | |
191 | ||
192 | //______________________________________________________________________________ | |
193 | void AliAlignObj::GetCovMatrix(Double_t *cmat) const | |
194 | { | |
195 | // Fills the cmat argument with the coefficients of the external cov matrix (21 elements) | |
196 | // calculating them from the correlation matrix data member | |
197 | // | |
198 | ||
199 | for(Int_t i=0; i<6; ++i) { | |
200 | // Off diagonal elements | |
201 | for(Int_t j=0; j<i; ++j) { | |
202 | cmat[i*(i+1)/2+j] = (fDiag[j] >= 0. && fDiag[i] >= 0.) ? fODia[(i-1)*i/2+j]*fDiag[j]*fDiag[i]: -999.; | |
203 | } | |
204 | ||
205 | // Diagonal elements | |
206 | cmat[i*(i+1)/2+i] = (fDiag[i] >= 0.) ? fDiag[i]*fDiag[i] : -999.; | |
207 | } | |
208 | ||
209 | return; | |
210 | } | |
211 | ||
212 | //______________________________________________________________________________ | |
213 | void AliAlignObj::GetCovMatrix(TMatrixDSym& mcov) const | |
214 | { | |
215 | // Fills the matrix m passed as argument as the covariance matrix calculated | |
216 | // from the coefficients of the reduced covariance matrix data members | |
217 | // | |
218 | ||
219 | for(Int_t i=0; i<6; ++i) { | |
220 | // Off diagonal elements | |
221 | for(Int_t j=0; j<i; ++j) { | |
222 | mcov(j,i) = mcov(i,j) = (fDiag[j] >= 0. && fDiag[i] >= 0.) ? fODia[(i-1)*i/2+j]*fDiag[j]*fDiag[i]: -999.; | |
223 | } | |
224 | ||
225 | // Diagonal elements | |
226 | mcov(i,i) = (fDiag[i] >= 0.) ? fDiag[i]*fDiag[i] : -999.; | |
227 | } | |
228 | ||
229 | } | |
230 | ||
231 | //______________________________________________________________________________ | |
232 | Bool_t AliAlignObj::GetLocalCovMatrix(TMatrixDSym& lCov) const | |
233 | { | |
234 | // Calculates the covariance matrix (6x6) associated to the six parameters | |
235 | // defining the current alignment in the global coordinates system (and sets | |
236 | // in the internal data members) from the covariance matrix (6x6) for the six | |
237 | // parameters defining the alignment transformation in the local coordinates | |
238 | // system, passed as an argument. | |
239 | // | |
240 | TMatrixD mJ(6,6);// the jacobian of the transformation from local to global parameters | |
241 | if(!GetJacobian(mJ)) return kFALSE; | |
242 | TMatrixD invJ = mJ.Invert(); // the inverse of the jacobian matrix | |
243 | ||
244 | TMatrixDSym gCov(6); | |
245 | GetCovMatrix(gCov); | |
246 | ||
247 | // Compute the global covariance matrix gcov = mJ lcov mJ-1 | |
248 | TMatrixD lCovM = invJ * gCov * mJ; | |
249 | // To be done: somehow check that lCovM is close enough to be symmetric | |
250 | for(Int_t i=0; i<6; i++) | |
251 | { | |
252 | lCov(i,i) = lCovM(i,i); | |
253 | for(Int_t j=i+1; j<6; j++) | |
254 | { | |
255 | lCov(i,j)=lCovM(i,j); | |
256 | lCov(j,i)=lCovM(i,j); | |
257 | } | |
258 | } | |
259 | ||
260 | return kTRUE; | |
261 | ||
262 | } | |
263 | ||
264 | //______________________________________________________________________________ | |
265 | Bool_t AliAlignObj::GetLocalCovMatrix(Double_t *lCov) const | |
266 | { | |
267 | // Calculates the covariance matrix (6x6) associated to the six parameters | |
268 | // defining the current alignment in the global coordinates system (and sets | |
269 | // in the internal data members) from the covariance matrix (6x6) for the six | |
270 | // parameters defining the alignment transformation in the local coordinates | |
271 | // system, passed as an argument. | |
272 | // | |
273 | TMatrixDSym lCovMatrix(6); | |
274 | GetLocalCovMatrix(lCovMatrix); | |
275 | ||
276 | Int_t k=0; | |
277 | for(Int_t i=0; i<6; i++) | |
278 | for(Int_t j=i; j<6; j++) | |
279 | { | |
280 | lCov[k++] = lCovMatrix(i,j); | |
281 | } | |
282 | ||
283 | return kTRUE; | |
284 | } | |
285 | ||
286 | //______________________________________________________________________________ | |
287 | Bool_t AliAlignObj::GetJacobian(TMatrixD& mJ) const | |
288 | { | |
289 | // Compute the jacobian J of the transformation of the six local to the six global delta parameters | |
290 | // | |
291 | // R00 R01 R02 | (R01Rk2 - R02Rk1)Tk (R02Rk0 - R00Rk2)Tk (R00Rk1 - R01Rk0)Tk | |
292 | // R00 R01 R02 | (R11Rk2 - R12Rk1)Tk (R12Rk0 - R10Rk2)Tk (R10Rk1 - R11Rk0)Tk | |
293 | // R00 R01 R02 | (R21Rk2 - R22Rk1)Tk (R22Rk0 - R20Rk2)Tk (R20Rk1 - R21Rk0)Tk | |
294 | // - - - - - - - - - - - - - - - - - - - - - - - | |
295 | // 0 0 0 | R11R22 - R12R21 R12R20 - R10R22 R10R21 - R11R20 | |
296 | // 0 0 0 | R21R02 - R22R01 R22R00 - R20R02 R20R01 - R21R00 | |
297 | // 0 0 0 | R01R12 - R02R11 R02R10 - R00R12 R00R11 - R01R10 | |
298 | // | |
299 | if (!gGeoManager || !gGeoManager->IsClosed()) { | |
300 | AliError("Can't compute the global covariance matrix from the local one without an open geometry!"); | |
301 | return kFALSE; | |
302 | } | |
303 | ||
304 | const char* symname = GetSymName(); | |
305 | TGeoPhysicalNode* node; | |
306 | TGeoPNEntry* pne = gGeoManager->GetAlignableEntry(symname); | |
307 | if(pne){ | |
308 | if(!pne->GetPhysicalNode()){ | |
309 | node = gGeoManager->MakeAlignablePN(pne); | |
310 | }else{ | |
311 | node = pne->GetPhysicalNode(); | |
312 | } | |
313 | }else{ | |
314 | AliWarning(Form("The symbolic volume name %s does not correspond to a physical entry. Using it as volume path!",symname)); | |
315 | node = (TGeoPhysicalNode*) gGeoManager->MakePhysicalNode(symname); | |
316 | } | |
317 | ||
318 | if (!node) { | |
319 | AliError(Form("Volume name or path %s not valid!",symname)); | |
320 | return kFALSE; | |
321 | } | |
322 | ||
323 | TGeoHMatrix gm; //global matrix | |
324 | gm = *node->GetMatrix(); | |
325 | Double_t *tr = gm.GetTranslation(); | |
326 | Double_t *rot = gm.GetRotationMatrix(); | |
327 | ||
328 | TGeoHMatrix m; // global delta transformation matrix | |
329 | GetMatrix(m); | |
330 | // We should probably check that it's sufficinetly close to identity | |
331 | // if it's not return because the "small angles" approximation cannot hold | |
332 | ||
333 | // 3x3 upper left part (global shifts derived w.r.t. local shifts) | |
334 | for(Int_t i=0; i<3; i++) | |
335 | { | |
336 | for(Int_t j=0; j<3; j++) | |
337 | { | |
338 | mJ(i,j) = rot[i+3*j]; | |
339 | } | |
340 | } | |
341 | ||
342 | // 3x3 lower left part (global angles derived w.r.t. local shifts) | |
343 | for(Int_t i=0; i<3; i++) | |
344 | { | |
345 | for(Int_t j=0; j<3; j++) | |
346 | { | |
347 | mJ(i+3,j) = 0.; | |
348 | } | |
349 | } | |
350 | ||
351 | // 3x3 upper right part (global shifts derived w.r.t. local angles) | |
352 | for(Int_t i=0; i<3; i++) | |
353 | { | |
354 | for(Int_t j=0; j<3; j++) | |
355 | { | |
356 | Double_t mEl = 0.; | |
357 | Int_t b = (j+1)%3; | |
358 | Int_t d = (j+2)%3; | |
359 | for(Int_t k=0; k<3; k++) | |
360 | { | |
361 | mEl += (rot[3*i+b]*rot[3*k+d])*tr[k]-(rot[3*i+d]*rot[3*k+b])*tr[k]; | |
362 | } | |
363 | mJ(i,j+3) = mEl; | |
364 | } | |
365 | } | |
366 | ||
367 | // 3x3 lower right part (global angles derived w.r.t. local angles) | |
368 | for(Int_t i=0; i<3; i++) | |
369 | for(Int_t j=0; j<3; j++) | |
370 | { | |
371 | Int_t a = (i+1)%3; | |
372 | Int_t b = (j+1)%3; | |
373 | Int_t c = (i+2)%3; | |
374 | Int_t d = (j+2)%3; | |
375 | mJ(i+3,j+3) = rot[3*a+b]*rot[3*c+d]-rot[3*a+d]*rot[3*c+b]; | |
376 | } | |
377 | ||
378 | return kTRUE; | |
379 | ||
380 | } | |
381 | ||
382 | //______________________________________________________________________________ | |
383 | Bool_t AliAlignObj::SetFromLocalCov(TMatrixDSym& lCov) | |
384 | { | |
385 | // Calculates the covariance matrix (6x6) associated to the six parameters | |
386 | // defining the current alignment in the global coordinates system (and sets | |
387 | // in the internal data members) from the covariance matrix (6x6) for the six | |
388 | // parameters defining the alignment transformation in the local coordinates | |
389 | // system, passed as an argument. | |
390 | // | |
391 | TMatrixD mJ(6,6);// the jacobian of the transformation from local to global parameters | |
392 | if(!GetJacobian(mJ)) return kFALSE; | |
393 | TMatrixD invJ = mJ.Invert(); // the inverse of the jacobian matrix | |
394 | ||
395 | // Compute the global covariance matrix gcov = mJ lcov mJ-1 | |
396 | TMatrixD gCovM = mJ * lCov * invJ; | |
397 | // To be done: somehow check that gCovM is close enough to be symmetric | |
398 | TMatrixDSym gCov(6); | |
399 | for(Int_t i=0; i<6; i++) | |
400 | { | |
401 | gCov(i,i) = gCovM(i,i); | |
402 | for(Int_t j=i+1; j<6; j++) | |
403 | { | |
404 | gCov(i,j)=gCovM(i,j); | |
405 | gCov(j,i)=gCovM(i,j); | |
406 | } | |
407 | } | |
408 | SetCorrMatrix(gCov); | |
409 | ||
410 | return kTRUE; | |
411 | ||
412 | } | |
413 | ||
414 | //______________________________________________________________________________ | |
415 | Bool_t AliAlignObj::SetFromLocalCov(Double_t *lCov) | |
416 | { | |
417 | // Calculates the covariance matrix (6x6) associated to the six parameters | |
418 | // defining the current alignment in the global coordinates system, and sets | |
419 | // in the internal data members, from the 21 coefficients, passed as argument, | |
420 | // of the covariance matrix (6x6) for the six parameters defining the | |
421 | // alignment transformation in the local coordinates system. | |
422 | // | |
423 | TMatrixDSym lCovMatrix(6); | |
424 | ||
425 | Int_t k=0; | |
426 | for(Int_t i=0; i<6; i++) | |
427 | for(Int_t j=i; j<6; j++) | |
428 | { | |
429 | lCovMatrix(i,j) = lCov[k++]; | |
430 | if(j!=i) lCovMatrix(j,i) = lCovMatrix(i,j); | |
431 | } | |
432 | ||
433 | return SetFromLocalCov(lCovMatrix); | |
434 | ||
435 | } | |
436 | ||
437 | ||
438 | //______________________________________________________________________________ | |
439 | void AliAlignObj::SetCorrMatrix(Double_t *cmat) | |
440 | { | |
441 | // Sets the correlation matrix data member from the coefficients of the external covariance | |
442 | // matrix (21 elements passed as argument). | |
443 | // | |
444 | if(cmat) { | |
445 | ||
446 | // Diagonal elements first | |
447 | for(Int_t i=0; i<6; ++i) { | |
448 | fDiag[i] = (cmat[i*(i+1)/2+i] >= 0.) ? TMath::Sqrt(cmat[i*(i+1)/2+i]) : -999.; | |
449 | } | |
450 | ||
451 | // ... then the ones off diagonal | |
452 | for(Int_t i=0; i<6; ++i) | |
453 | // Off diagonal elements | |
454 | for(Int_t j=0; j<i; ++j) { | |
455 | fODia[(i-1)*i/2+j] = (fDiag[i] > 0. && fDiag[j] > 0.) ? cmat[i*(i+1)/2+j]/(fDiag[j]*fDiag[i]) : 0.; // check for division by zero (due to diagonal element of 0) and for fDiag != -999. (due to negative input diagonal element). | |
456 | if (fODia[(i-1)*i/2+j]>1.) fODia[(i-1)*i/2+j] = 1.; // check upper boundary | |
457 | if (fODia[(i-1)*i/2+j]<-1.) fODia[(i-1)*i/2+j] = -1.; // check lower boundary | |
458 | } | |
459 | } else { | |
460 | for(Int_t i=0; i< 6; ++i) fDiag[i]=-999.; | |
461 | for(Int_t i=0; i< 6*(6-1)/2; ++i) fODia[i]=0.; | |
462 | } | |
463 | ||
464 | return; | |
465 | } | |
466 | ||
467 | //______________________________________________________________________________ | |
468 | void AliAlignObj::SetCorrMatrix(TMatrixDSym& mcov) | |
469 | { | |
470 | // Sets the correlation matrix data member from the covariance matrix mcov passed | |
471 | // passed as argument. | |
472 | // | |
473 | if(mcov.IsValid()) { | |
474 | ||
475 | // Diagonal elements first | |
476 | for(Int_t i=0; i<6; ++i) { | |
477 | fDiag[i] = (mcov(i,i) >= 0.) ? TMath::Sqrt(mcov(i,i)) : -999.; | |
478 | } | |
479 | ||
480 | // ... then the ones off diagonal | |
481 | for(Int_t i=0; i<6; ++i) | |
482 | // Off diagonal elements | |
483 | for(Int_t j=0; j<i; ++j) { | |
484 | fODia[(i-1)*i/2+j] = (fDiag[i] > 0. && fDiag[j] > 0.) ? mcov(i,j)/(fDiag[j]*fDiag[i]) : 0.; // check for division by zero (due to diagonal element of 0) and for fDiag != -999. (due to negative input diagonal element). | |
485 | if (fODia[(i-1)*i/2+j]>1.) fODia[(i-1)*i/2+j] = 1.; // check upper boundary | |
486 | if (fODia[(i-1)*i/2+j]<-1.) fODia[(i-1)*i/2+j] = -1.; // check lower boundary | |
487 | } | |
488 | } else { | |
489 | for(Int_t i=0; i< 6; ++i) fDiag[i]=-999.; | |
490 | for(Int_t i=0; i< 6*(6-1)/2; ++i) fODia[i]=0.; | |
491 | } | |
492 | ||
493 | return; | |
494 | } | |
495 | ||
496 | //_____________________________________________________________________________ | |
497 | void AliAlignObj::AnglesToMatrix(const Double_t *angles, Double_t *rot) const | |
498 | { | |
499 | // Calculates the rotation matrix using the | |
500 | // Euler angles in "x y z" notation | |
501 | // | |
502 | Double_t degrad = TMath::DegToRad(); | |
503 | Double_t sinpsi = TMath::Sin(degrad*angles[0]); | |
504 | Double_t cospsi = TMath::Cos(degrad*angles[0]); | |
505 | Double_t sinthe = TMath::Sin(degrad*angles[1]); | |
506 | Double_t costhe = TMath::Cos(degrad*angles[1]); | |
507 | Double_t sinphi = TMath::Sin(degrad*angles[2]); | |
508 | Double_t cosphi = TMath::Cos(degrad*angles[2]); | |
509 | ||
510 | rot[0] = costhe*cosphi; | |
511 | rot[1] = -costhe*sinphi; | |
512 | rot[2] = sinthe; | |
513 | rot[3] = sinpsi*sinthe*cosphi + cospsi*sinphi; | |
514 | rot[4] = -sinpsi*sinthe*sinphi + cospsi*cosphi; | |
515 | rot[5] = -costhe*sinpsi; | |
516 | rot[6] = -cospsi*sinthe*cosphi + sinpsi*sinphi; | |
517 | rot[7] = cospsi*sinthe*sinphi + sinpsi*cosphi; | |
518 | rot[8] = costhe*cospsi; | |
519 | } | |
520 | ||
521 | //_____________________________________________________________________________ | |
522 | Bool_t AliAlignObj::MatrixToAngles(const Double_t *rot, Double_t *angles) const | |
523 | { | |
524 | // Calculates the Euler angles in "x y z" notation | |
525 | // using the rotation matrix | |
526 | // Returns false in case the rotation angles can not be | |
527 | // extracted from the matrix | |
528 | // | |
529 | if(TMath::Abs(rot[0])<1e-7 || TMath::Abs(rot[8])<1e-7) { | |
530 | AliError("Failed to extract roll-pitch-yall angles!"); | |
531 | return kFALSE; | |
532 | } | |
533 | Double_t raddeg = TMath::RadToDeg(); | |
534 | angles[0]=raddeg*TMath::ATan2(-rot[5],rot[8]); | |
535 | angles[1]=raddeg*TMath::ASin(rot[2]); | |
536 | angles[2]=raddeg*TMath::ATan2(-rot[1],rot[0]); | |
537 | return kTRUE; | |
538 | } | |
539 | ||
540 | //______________________________________________________________________________ | |
541 | void AliAlignObj::Transform(AliTrackPoint &p, Bool_t copycov) const | |
542 | { | |
543 | // The method transforms the space-point coordinates using the | |
544 | // transformation matrix provided by the AliAlignObj | |
545 | // In case the copycov flag is set to kTRUE, the covariance matrix | |
546 | // of the alignment object is copied into the space-point | |
547 | // | |
548 | if (fVolUID != p.GetVolumeID()) | |
549 | AliWarning(Form("Alignment object ID is not equal to the space-point ID (%d != %d)",fVolUID,p.GetVolumeID())); | |
550 | ||
551 | TGeoHMatrix m; | |
552 | GetMatrix(m); | |
553 | Double_t *rot = m.GetRotationMatrix(); | |
554 | Double_t *tr = m.GetTranslation(); | |
555 | ||
556 | Float_t xyzin[3],xyzout[3]; | |
557 | p.GetXYZ(xyzin); | |
558 | for (Int_t i = 0; i < 3; i++) | |
559 | xyzout[i] = tr[i]+ | |
560 | xyzin[0]*rot[3*i]+ | |
561 | xyzin[1]*rot[3*i+1]+ | |
562 | xyzin[2]*rot[3*i+2]; | |
563 | p.SetXYZ(xyzout); | |
564 | ||
565 | if(copycov){ | |
566 | TMatrixDSym covmat(6); | |
567 | GetCovMatrix(covmat); | |
568 | p.SetAlignCovMatrix(covmat); | |
569 | } | |
570 | ||
571 | } | |
572 | ||
573 | //_____________________________________________________________________________ | |
574 | void AliAlignObj::Transform(AliTrackPointArray &array) const | |
575 | { | |
576 | // This method is used to transform all the track points | |
577 | // from the input AliTrackPointArray | |
578 | // | |
579 | AliTrackPoint p; | |
580 | for (Int_t i = 0; i < array.GetNPoints(); i++) { | |
581 | array.GetPoint(p,i); | |
582 | Transform(p); | |
583 | array.AddPoint(i,&p); | |
584 | } | |
585 | } | |
586 | ||
587 | //_____________________________________________________________________________ | |
588 | void AliAlignObj::Print(Option_t *) const | |
589 | { | |
590 | // Print the contents of the | |
591 | // alignment object in angles and | |
592 | // matrix representations | |
593 | // | |
594 | Double_t tr[3]; | |
595 | GetTranslation(tr); | |
596 | Double_t angles[3]; | |
597 | GetAngles(angles); | |
598 | TGeoHMatrix m; | |
599 | GetMatrix(m); | |
600 | const Double_t *rot = m.GetRotationMatrix(); | |
601 | ||
602 | printf("Volume=%s\n",GetSymName()); | |
603 | if (GetVolUID() != 0) { | |
604 | AliGeomManager::ELayerID layerId; | |
605 | Int_t modId; | |
606 | GetVolUID(layerId,modId); | |
607 | printf("VolumeID=%d LayerID=%d ( %s ) ModuleID=%d\n", GetVolUID(),layerId,AliGeomManager::LayerName(layerId),modId); | |
608 | } | |
609 | printf("%12.8f%12.8f%12.8f Tx = %12.8f Psi = %12.8f\n", rot[0], rot[1], rot[2], tr[0], angles[0]); | |
610 | printf("%12.8f%12.8f%12.8f Ty = %12.8f Theta = %12.8f\n", rot[3], rot[4], rot[5], tr[1], angles[1]); | |
611 | printf("%12.8f%12.8f%12.8f Tz = %12.8f Phi = %12.8f\n", rot[6], rot[7], rot[8], tr[2], angles[2]); | |
612 | ||
613 | } | |
614 | ||
615 | //_____________________________________________________________________________ | |
616 | void AliAlignObj::SetPars(Double_t x, Double_t y, Double_t z, | |
617 | Double_t psi, Double_t theta, Double_t phi) | |
618 | { | |
619 | // Set the global delta transformation by passing 3 angles (expressed in | |
620 | // degrees) and 3 shifts (in centimeters) | |
621 | // | |
622 | SetTranslation(x,y,z); | |
623 | SetRotation(psi,theta,phi); | |
624 | } | |
625 | ||
626 | //_____________________________________________________________________________ | |
627 | Bool_t AliAlignObj::SetLocalPars(Double_t x, Double_t y, Double_t z, | |
628 | Double_t psi, Double_t theta, Double_t phi) | |
629 | { | |
630 | // Set the global delta transformation by passing the parameters | |
631 | // for the local delta transformation (3 shifts and 3 angles). | |
632 | // In case that the TGeo was not initialized or not closed, | |
633 | // returns false and the object parameters are not set. | |
634 | // | |
635 | TGeoHMatrix m; | |
636 | Double_t tr[3] = {x, y, z}; | |
637 | m.SetTranslation(tr); | |
638 | Double_t angles[3] = {psi, theta, phi}; | |
639 | Double_t rot[9]; | |
640 | AnglesToMatrix(angles,rot); | |
641 | m.SetRotation(rot); | |
642 | ||
643 | return SetLocalMatrix(m); | |
644 | ||
645 | } | |
646 | ||
647 | //_____________________________________________________________________________ | |
648 | Bool_t AliAlignObj::SetLocalTranslation(Double_t x, Double_t y, Double_t z) | |
649 | { | |
650 | // Set the global delta transformation by passing the three shifts giving | |
651 | // the translation in the local reference system of the alignable | |
652 | // volume (known by TGeo geometry). | |
653 | // In case that the TGeo was not initialized or not closed, | |
654 | // returns false and the object parameters are not set. | |
655 | // | |
656 | TGeoHMatrix m; | |
657 | Double_t tr[3] = {x, y, z}; | |
658 | m.SetTranslation(tr); | |
659 | ||
660 | return SetLocalMatrix(m); | |
661 | ||
662 | } | |
663 | ||
664 | //_____________________________________________________________________________ | |
665 | Bool_t AliAlignObj::SetLocalTranslation(const TGeoMatrix& m) | |
666 | { | |
667 | // Set the global delta transformation by passing the matrix of | |
668 | // the local delta transformation and taking its translational part | |
669 | // In case that the TGeo was not initialized or not closed, | |
670 | // returns false and the object parameters are not set. | |
671 | // | |
672 | const Double_t* tr = m.GetTranslation(); | |
673 | TGeoHMatrix mtr; | |
674 | mtr.SetTranslation(tr); | |
675 | ||
676 | return SetLocalMatrix(mtr); | |
677 | ||
678 | } | |
679 | ||
680 | //_____________________________________________________________________________ | |
681 | Bool_t AliAlignObj::SetLocalRotation(Double_t psi, Double_t theta, Double_t phi) | |
682 | { | |
683 | // Set the global delta transformation by passing the three angles giving | |
684 | // the rotation in the local reference system of the alignable | |
685 | // volume (known by TGeo geometry). | |
686 | // In case that the TGeo was not initialized or not closed, | |
687 | // returns false and the object parameters are not set. | |
688 | // | |
689 | TGeoHMatrix m; | |
690 | Double_t angles[3] = {psi, theta, phi}; | |
691 | Double_t rot[9]; | |
692 | AnglesToMatrix(angles,rot); | |
693 | m.SetRotation(rot); | |
694 | ||
695 | return SetLocalMatrix(m); | |
696 | ||
697 | } | |
698 | ||
699 | //_____________________________________________________________________________ | |
700 | Bool_t AliAlignObj::SetLocalRotation(const TGeoMatrix& m) | |
701 | { | |
702 | // Set the global delta transformation by passing the matrix of | |
703 | // the local delta transformation and taking its rotational part | |
704 | // In case that the TGeo was not initialized or not closed, | |
705 | // returns false and the object parameters are not set. | |
706 | // | |
707 | TGeoHMatrix rotm; | |
708 | const Double_t* rot = m.GetRotationMatrix(); | |
709 | rotm.SetRotation(rot); | |
710 | ||
711 | return SetLocalMatrix(rotm); | |
712 | ||
713 | } | |
714 | ||
715 | //_____________________________________________________________________________ | |
716 | Bool_t AliAlignObj::SetLocalMatrix(const TGeoMatrix& m) | |
717 | { | |
718 | // Set the global delta transformation by passing the TGeo matrix | |
719 | // for the local delta transformation. | |
720 | // In case that the TGeo was not initialized or not closed, | |
721 | // returns false and the object parameters are not set. | |
722 | // | |
723 | if (!gGeoManager || !gGeoManager->IsClosed()) { | |
724 | AliError("Can't set the local alignment object parameters! gGeoManager doesn't exist or it is still open!"); | |
725 | return kFALSE; | |
726 | } | |
727 | ||
728 | const char* symname = GetSymName(); | |
729 | TGeoPhysicalNode* node; | |
730 | TGeoPNEntry* pne = gGeoManager->GetAlignableEntry(symname); | |
731 | if(pne){ | |
732 | if(!pne->GetPhysicalNode()){ | |
733 | node = gGeoManager->MakeAlignablePN(pne); | |
734 | }else{ | |
735 | node = pne->GetPhysicalNode(); | |
736 | } | |
737 | }else{ | |
738 | AliWarning(Form("The symbolic volume name %s does not correspond to a physical entry. Using it as volume path!",symname)); | |
739 | node = (TGeoPhysicalNode*) gGeoManager->MakePhysicalNode(symname); | |
740 | } | |
741 | ||
742 | if (!node) { | |
743 | AliError(Form("Volume name or path %s not valid!",symname)); | |
744 | return kFALSE; | |
745 | } | |
746 | if (node->IsAligned()) | |
747 | AliWarning(Form("Volume %s has been already misaligned!",symname)); | |
748 | ||
749 | TGeoHMatrix m1; | |
750 | const Double_t *tr = m.GetTranslation(); | |
751 | m1.SetTranslation(tr); | |
752 | const Double_t* rot = m.GetRotationMatrix(); | |
753 | m1.SetRotation(rot); | |
754 | ||
755 | TGeoHMatrix align,gprime,gprimeinv; | |
756 | gprime = *node->GetMatrix(); | |
757 | gprimeinv = gprime.Inverse(); | |
758 | m1.Multiply(&gprimeinv); | |
759 | m1.MultiplyLeft(&gprime); | |
760 | ||
761 | return SetMatrix(m1); | |
762 | } | |
763 | ||
764 | //_____________________________________________________________________________ | |
765 | Bool_t AliAlignObj::SetMatrix(const TGeoMatrix& m) | |
766 | { | |
767 | // Set the global delta transformation by passing the TGeoMatrix | |
768 | // for it | |
769 | // | |
770 | SetTranslation(m); | |
771 | return SetRotation(m); | |
772 | } | |
773 | ||
774 | //_____________________________________________________________________________ | |
775 | Bool_t AliAlignObj::GetLocalPars(Double_t transl[], Double_t angles[]) const | |
776 | { | |
777 | // Get the translations and angles (in degrees) expressing the | |
778 | // local delta transformation. | |
779 | // In case that the TGeo was not initialized or not closed, | |
780 | // returns false and the object parameters are not set. | |
781 | // | |
782 | if(!GetLocalTranslation(transl)) return kFALSE; | |
783 | return GetLocalAngles(angles); | |
784 | } | |
785 | ||
786 | //_____________________________________________________________________________ | |
787 | Bool_t AliAlignObj::GetLocalTranslation(Double_t* tr) const | |
788 | { | |
789 | // Get the 3 shifts giving the translational part of the local | |
790 | // delta transformation. | |
791 | // In case that the TGeo was not initialized or not closed, | |
792 | // returns false and the object parameters are not set. | |
793 | // | |
794 | TGeoHMatrix ml; | |
795 | if(!GetLocalMatrix(ml)) return kFALSE; | |
796 | const Double_t* transl; | |
797 | transl = ml.GetTranslation(); | |
798 | tr[0]=transl[0]; | |
799 | tr[1]=transl[1]; | |
800 | tr[2]=transl[2]; | |
801 | return kTRUE; | |
802 | } | |
803 | ||
804 | //_____________________________________________________________________________ | |
805 | Bool_t AliAlignObj::GetLocalAngles(Double_t* angles) const | |
806 | { | |
807 | // Get the 3 angles giving the rotational part of the local | |
808 | // delta transformation. | |
809 | // In case that the TGeo was not initialized or not closed, | |
810 | // returns false and the object parameters are not set. | |
811 | // | |
812 | TGeoHMatrix ml; | |
813 | if(!GetLocalMatrix(ml)) return kFALSE; | |
814 | const Double_t *rot = ml.GetRotationMatrix(); | |
815 | return MatrixToAngles(rot,angles); | |
816 | } | |
817 | ||
818 | //_____________________________________________________________________________ | |
819 | Bool_t AliAlignObj::GetLocalMatrix(TGeoHMatrix& m) const | |
820 | { | |
821 | // Get the matrix for the local delta transformation. | |
822 | // In case that the TGeo was not initialized or not closed, | |
823 | // returns false and the object parameters are not set. | |
824 | // | |
825 | if (!gGeoManager || !gGeoManager->IsClosed()) { | |
826 | AliError("Can't get the local alignment object parameters! gGeoManager doesn't exist or it is still open!"); | |
827 | return kFALSE; | |
828 | } | |
829 | ||
830 | const char* symname = GetSymName(); | |
831 | TGeoPhysicalNode* node; | |
832 | TGeoPNEntry* pne = gGeoManager->GetAlignableEntry(symname); | |
833 | if(pne){ | |
834 | if(!pne->GetPhysicalNode()){ | |
835 | node = gGeoManager->MakeAlignablePN(pne); | |
836 | }else{ | |
837 | node = pne->GetPhysicalNode(); | |
838 | } | |
839 | }else{ | |
840 | AliWarning(Form("The symbolic volume name %s does not correspond to a physical entry. Using it as volume path!",symname)); | |
841 | node = (TGeoPhysicalNode*) gGeoManager->MakePhysicalNode(symname); | |
842 | } | |
843 | ||
844 | if (!node) { | |
845 | AliError(Form("Volume name or path %s not valid!",symname)); | |
846 | return kFALSE; | |
847 | } | |
848 | if (node->IsAligned()) | |
849 | AliWarning(Form("Volume %s has been already misaligned!",symname)); | |
850 | ||
851 | GetMatrix(m); | |
852 | TGeoHMatrix gprime,gprimeinv; | |
853 | gprime = *node->GetMatrix(); | |
854 | gprimeinv = gprime.Inverse(); | |
855 | m.Multiply(&gprime); | |
856 | m.MultiplyLeft(&gprimeinv); | |
857 | ||
858 | return kTRUE; | |
859 | } | |
860 | ||
861 | //_____________________________________________________________________________ | |
862 | Bool_t AliAlignObj::ApplyToGeometry(Bool_t ovlpcheck) | |
863 | { | |
864 | // Apply the current alignment object to the TGeo geometry | |
865 | // This method returns FALSE if the symname of the object was not | |
866 | // valid neither to get a TGeoPEntry nor as a volume path | |
867 | // | |
868 | if (!gGeoManager || !gGeoManager->IsClosed()) { | |
869 | AliError("Can't apply the alignment object! gGeoManager doesn't exist or it is still open!"); | |
870 | return kFALSE; | |
871 | } | |
872 | ||
873 | if (gGeoManager->IsLocked()){ | |
874 | AliError("Can't apply the alignment object! Geometry is locked!"); | |
875 | return kFALSE; | |
876 | } | |
877 | ||
878 | const char* symname = GetSymName(); | |
879 | const char* path; | |
880 | TGeoPhysicalNode* node; | |
881 | TGeoPNEntry* pne = gGeoManager->GetAlignableEntry(symname); | |
882 | if(pne){ | |
883 | path = pne->GetTitle(); | |
884 | node = gGeoManager->MakeAlignablePN(pne); | |
885 | }else{ | |
886 | AliDebug(1,Form("The symbolic volume name %s does not correspond to a physical entry. Using it as a volume path!",symname)); | |
887 | path=symname; | |
888 | if (!gGeoManager->CheckPath(path)) { | |
889 | AliDebug(1,Form("Volume path %s not valid!",path)); | |
890 | return kFALSE; | |
891 | } | |
892 | if (gGeoManager->GetListOfPhysicalNodes()->FindObject(path)) { | |
893 | AliError(Form("Volume %s has already been misaligned!",path)); | |
894 | return kFALSE; | |
895 | } | |
896 | node = (TGeoPhysicalNode*) gGeoManager->MakePhysicalNode(path); | |
897 | } | |
898 | ||
899 | if (!node) { | |
900 | AliError(Form("Volume path %s not valid!",path)); | |
901 | return kFALSE; | |
902 | } | |
903 | ||
904 | // Double_t threshold = 0.001; | |
905 | ||
906 | TGeoHMatrix align,gprime; | |
907 | gprime = *node->GetMatrix(); | |
908 | GetMatrix(align); | |
909 | gprime.MultiplyLeft(&align); | |
910 | TGeoHMatrix *ginv = new TGeoHMatrix; | |
911 | TGeoHMatrix *g = node->GetMatrix(node->GetLevel()-1); | |
912 | *ginv = g->Inverse(); | |
913 | *ginv *= gprime; | |
914 | AliGeomManager::ELayerID layerId; // unique identity for layer in the alobj | |
915 | Int_t modId; // unique identity for volume inside layer in the alobj | |
916 | GetVolUID(layerId, modId); | |
917 | AliDebug(2,Form("Aligning volume %s of detector layer %d with local ID %d",symname,layerId,modId)); | |
918 | if(ovlpcheck){ | |
919 | node->Align(ginv,0,kTRUE); //(trunk of root takes threshold as additional argument) | |
920 | }else{ | |
921 | node->Align(ginv,0,kFALSE); | |
922 | } | |
923 | if(ovlpcheck) | |
924 | { | |
925 | TObjArray* ovlpArray = gGeoManager->GetListOfOverlaps(); | |
926 | Int_t nOvlp = ovlpArray->GetEntriesFast(); | |
927 | if(nOvlp) | |
928 | { | |
929 | AliInfo(Form("Misalignment of node %s generated the following overlaps/extrusions:",node->GetName())); | |
930 | for(Int_t i=0; i<nOvlp; i++) | |
931 | ((TGeoOverlap*)ovlpArray->UncheckedAt(i))->PrintInfo(); | |
932 | } | |
933 | } | |
934 | ||
935 | return kTRUE; | |
936 | } | |
937 | ||
938 |