New AliTRDcluster constructor
[u/mrichter/AliRoot.git] / TOF / AliTOFAlignment.cxx
CommitLineData
b33ed6c7 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. *
0e46b9ae 14***************************************************************************/
15
16/*
b33ed6c7 17$Log$
03705065 18Revision 1.16 2007/05/15 16:25:44 cvetan
19Moving the alignment-related static methods from AliAlignObj to the new geometry steering class AliGeomManager (macro from Raffaele)
20
ae079791 21Revision 1.15 2007/05/03 09:25:10 decaro
22Coding convention: RN13 violation -> suppression
23
cbf167bd 24Revision 1.14 2007/04/18 14:49:54 arcelli
25Some code cleanup, added more debug info
26
99a365f3 27Revision 1.13 2007/04/17 16:38:36 arcelli
28Include Methods to derive TOF AlignObjs from Survey Data
29
5398b994 30Revision 1.12 2007/02/28 18:09:23 arcelli
31Add protection against failed retrieval of the CDB cal object
32
1b20c168 33Revision 1.11 2006/09/19 14:31:26 cvetan
34Bugfixes and clean-up of alignment object classes. Introduction of so called symbolic names used to identify the alignable volumes (Raffaele and Cvetan)
35
b760c02e 36Revision 1.10 2006/08/22 13:26:05 arcelli
37removal of effective c++ warnings (C.Zampolli)
38
655e379f 39Revision 1.9 2006/08/10 14:46:54 decaro
40TOF raw data format: updated version
41
d0eb8f39 42Revision 1.8 2006/05/04 19:41:42 hristov
43Possibility for partial TOF geometry (S.Arcelli)
44
06e24a91 45Revision 1.7 2006/04/27 13:13:29 hristov
46Moving the destructor to the implementation file
47
e78d8265 48Revision 1.6 2006/04/20 22:30:49 hristov
49Coding conventions (Annalisa)
50
0e46b9ae 51Revision 1.5 2006/04/16 22:29:05 hristov
52Coding conventions (Annalisa)
53
7aeeaf38 54Revision 1.4 2006/04/05 08:35:38 hristov
55Coding conventions (S.Arcelli, C.Zampolli)
56
340693af 57Revision 1.3 2006/03/31 13:49:07 arcelli
58Removing some junk printout
59
0120b1d1 60Revision 1.2 2006/03/31 11:26:30 arcelli
61 changing CDB Ids according to standard convention
62
28dd10b6 63Revision 1.1 2006/03/28 14:54:48 arcelli
64class for TOF alignment
65
b33ed6c7 66author: Silvia Arcelli, arcelli@bo.infn.it
67*/
68
0e46b9ae 69/////////////////////////////////////////////////////////
70// //
71// Class for alignment procedure //
72// //
73// //
74// //
75/////////////////////////////////////////////////////////
76
b33ed6c7 77#include <Rtypes.h>
0e46b9ae 78
5398b994 79#include "TMath.h"
80#include "TFile.h"
0e46b9ae 81#include "TRandom.h"
0e46b9ae 82
b33ed6c7 83#include "AliLog.h"
b33ed6c7 84#include "AliAlignObj.h"
85#include "AliAlignObjAngles.h"
5398b994 86#include "AliAlignObjMatrix.h"
b33ed6c7 87#include "AliCDBManager.h"
88#include "AliCDBMetaData.h"
b33ed6c7 89#include "AliCDBId.h"
90#include "AliCDBEntry.h"
0e46b9ae 91#include "AliTOFAlignment.h"
b33ed6c7 92
5398b994 93
b33ed6c7 94ClassImp(AliTOFAlignment)
5398b994 95const Double_t AliTOFAlignment::fgkXsizeTOF = 124.5; // x size of the TOF ext. volume, cm
96const Double_t AliTOFAlignment::fgkYsizeTOF = 29.0; // y size of the TOF ext. volume, cm
97const Double_t AliTOFAlignment::fgkZsizeTOF = 913.8; // z size of the TOF ext. volume, cm
98const Double_t AliTOFAlignment::fgkRorigTOF = 384.5; // Mean Radius of the TOF ext. volume, cm
99a365f3 99const Double_t AliTOFAlignment::fgkXFM = 38.0; //x pos of FM in the LRS, cm
100const Double_t AliTOFAlignment::fgkYFM = 11.2; //y pos of FM in the LRS, cm
101const Double_t AliTOFAlignment::fgkZFM = 457.3;//z pos of FM in the LRS, cm
5398b994 102const Double_t AliTOFAlignment::fgkZsizeTOFSens=741.2; //z size of the TOF sensitive volume, cm
b33ed6c7 103
104//_____________________________________________________________________________
655e379f 105AliTOFAlignment::AliTOFAlignment():
106 TTask("AliTOFAlignment",""),
107 fNTOFAlignObj(0),
5398b994 108 fTOFmgr(0x0),
655e379f 109 fTOFAlignObjArray(0x0)
110 {
5398b994 111 //AliTOFalignment main Ctor
112 for(Int_t ism=0;ism<18;ism++){
113 for(Int_t iFM=0;iFM<4;iFM++){
114 for(Int_t iFMc=0;iFMc<3;iFMc++){
115 fTOFSurveyFM[ism][iFM][iFMc]=-1.;
116 }
117 }
118 }
b33ed6c7 119}
120//_____________________________________________________________________________
655e379f 121AliTOFAlignment::AliTOFAlignment(const AliTOFAlignment &t):
122 TTask("AliTOFAlignment",""),
123 fNTOFAlignObj(0),
5398b994 124 fTOFmgr(0x0),
655e379f 125 fTOFAlignObjArray(0x0)
126{
b33ed6c7 127 //AliTOFAlignment copy Ctor
128
129 fNTOFAlignObj=t.fNTOFAlignObj;
130 fTOFAlignObjArray=t.fTOFAlignObjArray;
5398b994 131 //AliTOFalignment main Ctor
132 for(Int_t iSM=0;iSM<18;iSM++){
133 for(Int_t iFM=0;iFM<4;iFM++){
134 for(Int_t iFMc=0;iFMc<3;iFMc++){
135 fTOFSurveyFM[iSM][iFM][iFMc]=-1.;
136 }
137 }
138 }
b33ed6c7 139}
b33ed6c7 140//_____________________________________________________________________________
7aeeaf38 141AliTOFAlignment& AliTOFAlignment::operator=(const AliTOFAlignment &t){
142 //AliTOFAlignment assignment operator
143
144 this->fNTOFAlignObj=t.fNTOFAlignObj;
5398b994 145 this->fTOFmgr=t.fTOFmgr;
7aeeaf38 146 this->fTOFAlignObjArray=t.fTOFAlignObjArray;
147 return *this;
148
149}
7aeeaf38 150//_____________________________________________________________________________
99a365f3 151AliTOFAlignment::~AliTOFAlignment() {
152 delete fTOFAlignObjArray;
153 delete fTOFmgr;
154}
e78d8265 155
156//_____________________________________________________________________________
340693af 157void AliTOFAlignment::Smear( Float_t *tr, Float_t *rot)
158{
159 //Introduce Random Offset/Tilts
b33ed6c7 160 fTOFAlignObjArray = new TObjArray(kMaxAlignObj);
161 Float_t dx, dy, dz; // shifts
162 Float_t dpsi, dtheta, dphi; // angular displacements
163 TRandom *rnd = new TRandom(1567);
06e24a91 164
165 Int_t nSMTOF = 18;
ae079791 166 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
28dd10b6 167 UShort_t iIndex=0; //dummy volume index
ae079791 168 // AliGeomManager::ELayerID iLayer = AliGeomManager::kTOF;
28dd10b6 169 // Int_t iIndex=1; //dummy volume index
ae079791 170 UShort_t dvoluid = AliGeomManager::LayerToVolUID(iLayer,iIndex); //dummy volume identity
b33ed6c7 171 Int_t i;
06e24a91 172 for (i = 0; i<nSMTOF ; i++) {
173 Char_t path[100];
174 sprintf(path,"/ALIC_1/B077_1/BSEGMO%i_1/BTOF%i_1",i,i);
175
176 dx = (rnd->Gaus(0.,1.))*tr[0];
177 dy = (rnd->Gaus(0.,1.))*tr[1];
178 dz = (rnd->Gaus(0.,1.))*tr[2];
179 dpsi = rot[0];
180 dtheta = rot[1];
181 dphi = rot[2];
b760c02e 182 AliAlignObjAngles *o =new AliAlignObjAngles(path, dvoluid, dx, dy, dz, dpsi, dtheta, dphi, kTRUE);
b33ed6c7 183 fTOFAlignObjArray->Add(o);
184 }
185
b33ed6c7 186 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
187 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
188 delete rnd;
189}
190
191//_____________________________________________________________________________
340693af 192void AliTOFAlignment::Align( Float_t *tr, Float_t *rot)
193{
194 //Introduce Offset/Tilts
b33ed6c7 195
196 fTOFAlignObjArray = new TObjArray(kMaxAlignObj);
197 Float_t dx, dy, dz; // shifts
198 Float_t dpsi, dtheta, dphi; // angular displacements
b33ed6c7 199
200
06e24a91 201 Int_t nSMTOF = 18;
ae079791 202 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
28dd10b6 203 UShort_t iIndex=0; //dummy volume index
ae079791 204 UShort_t dvoluid = AliGeomManager::LayerToVolUID(iLayer,iIndex); //dummy volume identity
b33ed6c7 205 Int_t i;
06e24a91 206 for (i = 0; i<nSMTOF ; i++) {
207
208 Char_t path[100];
209 sprintf(path,"/ALIC_1/B077_1/BSEGMO%i_1/BTOF%i_1",i,i);
210 dx = tr[0];
211 dy = tr[1];
212 dz = tr[2];
213 dpsi = rot[0];
214 dtheta = rot[1];
215 dphi = rot[2];
b33ed6c7 216
b760c02e 217 AliAlignObjAngles *o =new AliAlignObjAngles(path, dvoluid, dx, dy, dz, dpsi, dtheta, dphi, kTRUE);
b33ed6c7 218 fTOFAlignObjArray->Add(o);
219 }
220 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
221 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
222}
223//_____________________________________________________________________________
340693af 224void AliTOFAlignment::WriteParOnCDB(Char_t *sel, Int_t minrun, Int_t maxrun)
225{
226 //Write Align Par on CDB
b33ed6c7 227 AliCDBManager *man = AliCDBManager::Instance();
b33ed6c7 228 Char_t *sel1 = "AlignPar" ;
229 Char_t out[100];
230 sprintf(out,"%s/%s",sel,sel1);
231 AliCDBId idTOFAlign(out,minrun,maxrun);
232 AliCDBMetaData *mdTOFAlign = new AliCDBMetaData();
233 mdTOFAlign->SetResponsible("TOF");
234 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
235 man->Put(fTOFAlignObjArray,idTOFAlign,mdTOFAlign);
236}
237//_____________________________________________________________________________
340693af 238void AliTOFAlignment::ReadParFromCDB(Char_t *sel, Int_t nrun)
239{
240 //Read Align Par from CDB
b33ed6c7 241 AliCDBManager *man = AliCDBManager::Instance();
b33ed6c7 242 Char_t *sel1 = "AlignPar" ;
243 Char_t out[100];
244 sprintf(out,"%s/%s",sel,sel1);
245 AliCDBEntry *entry = man->Get(out,nrun);
1b20c168 246 if (!entry) {
247 AliError(Form("Failed to get entry: %s",out));
248 return;
249 }
b33ed6c7 250 fTOFAlignObjArray=(TObjArray*)entry->GetObject();
251 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
252 AliInfo(Form("Number of Alignable Volumes from CDB: %d",fNTOFAlignObj));
253
254}
255//_____________________________________________________________________________
340693af 256void AliTOFAlignment::WriteSimParOnCDB(Char_t *sel, Int_t minrun, Int_t maxrun)
257{
258 //Write Sim Align Par on CDB
b33ed6c7 259 AliCDBManager *man = AliCDBManager::Instance();
b33ed6c7 260 Char_t *sel1 = "AlignSimPar" ;
261 Char_t out[100];
262 sprintf(out,"%s/%s",sel,sel1);
263 AliCDBId idTOFAlign(out,minrun,maxrun);
264 AliCDBMetaData *mdTOFAlign = new AliCDBMetaData();
265 mdTOFAlign->SetResponsible("TOF");
266 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
267 man->Put(fTOFAlignObjArray,idTOFAlign,mdTOFAlign);
268}
269//_____________________________________________________________________________
270void AliTOFAlignment::ReadSimParFromCDB(Char_t *sel, Int_t nrun){
340693af 271 //Read Sim Align Par from CDB
b33ed6c7 272 AliCDBManager *man = AliCDBManager::Instance();
b33ed6c7 273 Char_t *sel1 = "AlignSimPar" ;
274 Char_t out[100];
275 sprintf(out,"%s/%s",sel,sel1);
276 AliCDBEntry *entry = man->Get(out,nrun);
277 fTOFAlignObjArray=(TObjArray*)entry->GetObject();
278 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
279 AliInfo(Form("Number of Alignable Volumes from CDB: %d",fNTOFAlignObj));
280
281}
28dd10b6 282//_____________________________________________________________________________
340693af 283void AliTOFAlignment::WriteOnCDBforDC()
284{
285 //Write Align Par on CDB for DC06
28dd10b6 286 AliCDBManager *man = AliCDBManager::Instance();
28dd10b6 287 AliCDBId idTOFAlign("TOF/Align/Data",0,0);
288 AliCDBMetaData *mdTOFAlign = new AliCDBMetaData();
289 mdTOFAlign->SetComment("Alignment objects for ideal geometry, i.e. applying them to TGeo has to leave geometry unchanged");
290 mdTOFAlign->SetResponsible("TOF");
291 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
292 man->Put(fTOFAlignObjArray,idTOFAlign,mdTOFAlign);
293}
294//_____________________________________________________________________________
340693af 295void AliTOFAlignment::ReadFromCDBforDC()
296{
297 //Read Sim Align Par from CDB for DC06
28dd10b6 298 AliCDBManager *man = AliCDBManager::Instance();
28dd10b6 299 AliCDBEntry *entry = man->Get("TOF/Align/Data",0);
300 fTOFAlignObjArray=(TObjArray*)entry->GetObject();
301 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
302 AliInfo(Form("Number of Alignable Volumes from CDB: %d",fNTOFAlignObj));
303
304}
5398b994 305//_____________________________________________________________________________
306void AliTOFAlignment::BuildGeomForSurvey()
307{
308
99a365f3 309 //Generates the ideal TOF structure with four Fiducial Marks in each
310 //supermodule (two on each z side) in their expected position.
5398b994 311 //Highly inspired to Raffaele's example...
312
313 fTOFmgr = new TGeoManager("Geom","survey to alignment for TOF");
314 TGeoMedium *medium = 0;
315 TGeoVolume *top = fTOFmgr->MakeBox("TOP",medium,1000,1000,1000);
316 fTOFmgr->SetTopVolume(top);
317 // make shape components:
318 // This is the big box containing the TOF master sensitive volume+services
319 TGeoBBox *sbox0 = new TGeoBBox(fgkXsizeTOF*0.5,fgkYsizeTOF*0.5,fgkZsizeTOF*0.5);
320 TGeoVolume* box0[18];
321 // This is the big box containing the TOF master sensitive volume
322 TGeoBBox *sbox1 = new TGeoBBox(fgkXsizeTOF*0.5,fgkYsizeTOF*0.5,fgkZsizeTOFSens*0.5);
323 TGeoVolume* box1 = new TGeoVolume("B1",sbox1);
324 box1->SetLineColor(3);//green
325
326 // Now four fiducial marks on SM, expressed in local coordinates
327 // They are positioned at x=+/- 38 cm, y=11.2, z=+/- 456.94 cm
328
329 TGeoBBox *fmbox = new TGeoBBox(1,1,1);
330 TGeoVolume* fm = new TGeoVolume("FM",fmbox);
331 fm->SetLineColor(2);//color
332
cbf167bd 333 TGeoTranslation* mAtr = new TGeoTranslation("mAtr",-fgkXFM, fgkYFM ,fgkZFM);
334 TGeoTranslation* mBtr = new TGeoTranslation("mBtr", fgkXFM, fgkYFM, fgkZFM);
335 TGeoTranslation* mCtr = new TGeoTranslation("mCtr", fgkXFM, fgkYFM,-fgkZFM);
336 TGeoTranslation* mDtr = new TGeoTranslation("mDtr",-fgkXFM, fgkYFM,-fgkZFM);
5398b994 337
338 // position all this stuff in the global ALICE frame
339
340 char name[16];
341 Double_t smX = 0.;
342 Double_t smY = 0.;
343 Double_t smZ = 0.;
344 Float_t smR = fgkRorigTOF;
345
346 for (Int_t iSM = 0; iSM < 18; iSM++) {
347 Int_t mod = iSM + 13;
348 if (mod > 17) mod -= 18;
349 sprintf(name, "BTOF%d",mod);
350 box0[iSM] = new TGeoVolume(name,sbox0);
351 Float_t phi = iSM * 20.;
352 Float_t phirot = 180 + phi;
353 smX = TMath::Sin(phi*TMath::Pi()/180.)*smR;
354 smY = -TMath::Cos(phi*TMath::Pi()/180.)*smR;
355 smZ = 0.;
356 TGeoRotation* smRot = new TGeoRotation("smRot",phirot,0,0.);
357 TGeoCombiTrans trans = *(new TGeoCombiTrans(smX,smY,smZ, smRot));
358 TGeoMatrix* id = new TGeoHMatrix();
359 TGeoHMatrix transMat = *id * trans;
360 TGeoHMatrix *smTrans = new TGeoHMatrix(transMat);
361 box0[iSM]->SetVisDaughters();
362 box0[iSM]->SetLineColor(1); //black
363 top->AddNode(box0[iSM],1,smTrans); //place the extended SM volume
364 box0[iSM]->AddNode(box1,1); //place the inner SM volume
cbf167bd 365 box0[iSM]->AddNode(fm,1,mAtr);
366 box0[iSM]->AddNode(fm,2,mBtr);
367 box0[iSM]->AddNode(fm,3,mCtr);
368 box0[iSM]->AddNode(fm,4,mDtr);
5398b994 369 }
370
371 fTOFmgr->CloseGeometry();
372 fTOFmgr->GetTopVolume()->Draw();
373 fTOFmgr->SetVisOption(0);
374 fTOFmgr->SetVisLevel(6);
375
99a365f3 376 // Now Store the "Ideal" Matrices for later use....
5398b994 377
378 for (Int_t iSM = 0; iSM < 18; iSM++) {
379
380 sprintf(name, "TOP_1/BTOF%d_1", iSM);
99a365f3 381 printf("\n\n***************** TOF SuperModule: %s ****************** \n",name);
5398b994 382 TGeoPhysicalNode* pn3 = fTOFmgr->MakePhysicalNode(name);
383 fTOFMatrixId[iSM] = pn3->GetMatrix(); //save "ideal" global matrix
99a365f3 384 printf("\n\n*************** The Ideal Matrix in GRS *****************\n");
5398b994 385 fTOFMatrixId[iSM]->Print();
386
387 }
388}
389//_____________________________________________________________________________
99a365f3 390void AliTOFAlignment::InsertMisAlignment( Float_t *mis)
5398b994 391{
392 // Now Apply the Displacements and store the misaligned FM positions...
393
cbf167bd 394 Double_t lA[3]={-fgkXFM,fgkYFM, fgkZFM};
395 Double_t lB[3]={ fgkXFM,fgkYFM, fgkZFM};
396 Double_t lC[3]={ fgkXFM,fgkYFM,-fgkZFM};
397 Double_t lD[3]={-fgkXFM,fgkYFM,-fgkZFM};
5398b994 398
399 for(Int_t iSM=0;iSM<18;iSM++){
400 // ************* get ideal global matrix *******************
401 char name[16];
402 sprintf(name, "TOP_1/BTOF%d_1", iSM);
403 fTOFmgr->cd(name);
99a365f3 404 printf("\n\n******Misaligning TOF SuperModule ************** %s \n",name);
5398b994 405
406 // ************* get ideal local matrix *******************
407 TGeoHMatrix g3 = *fTOFmgr->GetCurrentMatrix();
408 TGeoNode* n3 = fTOFmgr->GetCurrentNode();
409 TGeoMatrix* l3 = n3->GetMatrix();
410
411 Double_t gA[3], gB[3], gC[3], gD[3]; // ideal FM point coord., global RS
cbf167bd 412 g3.LocalToMaster(lA,gA);
413 g3.LocalToMaster(lB,gB);
414 g3.LocalToMaster(lC,gC);
415 g3.LocalToMaster(lD,gD);
5398b994 416
99a365f3 417
5398b994 418 // We apply a delta transformation to the surveyed vol to represent
419 // its real position, given below by ng3 nl3, which differs from its
420 // ideal position saved above in g3 and l3
421
422
423 Double_t dx = mis[0]; // shift along x
424 Double_t dy = mis[1]; // shift along y
425 Double_t dz = mis[2]; // shift along z
426 Double_t dphi = mis[3]; // rot around z
427 Double_t dtheta = mis[4]; // rot around x'
428 Double_t dpsi = mis[5]; // rot around z'
429
430 TGeoRotation* rrot = new TGeoRotation("rot",dphi,dtheta,dpsi);
431 TGeoCombiTrans localdelta = *(new TGeoCombiTrans(dx,dy,dz, rrot));
432 // new local matrix, representing real position
433 TGeoHMatrix nlocal = *l3 * localdelta;
434 TGeoHMatrix* nl3 = new TGeoHMatrix(nlocal);
5398b994 435 TGeoPhysicalNode* pn3 = fTOFmgr->MakePhysicalNode(name);
5398b994 436
437 pn3->Align(nl3); //Align....
438
439 TGeoHMatrix* ng3 = pn3->GetMatrix(); //"real" global matrix, what survey sees
99a365f3 440 printf("\n\n************* The Misaligned Matrix in GRS **************\n");
5398b994 441 ng3->Print();
442 Double_t ngA[3], ngB[3], ngC[3], ngD[3];// real FM point coord., global RS
cbf167bd 443 ng3->LocalToMaster(lA,ngA);
444 ng3->LocalToMaster(lB,ngB);
445 ng3->LocalToMaster(lC,ngC);
446 ng3->LocalToMaster(lD,ngD);
5398b994 447
448 for(Int_t iFM=0;iFM<3;iFM++){
449 fTOFSurveyFM[iSM][0][iFM]=ngA[iFM];
450 fTOFSurveyFM[iSM][1][iFM]=ngB[iFM];
451 fTOFSurveyFM[iSM][2][iFM]=ngC[iFM];
452 fTOFSurveyFM[iSM][3][iFM]=ngD[iFM];
453 }
454 }
455}
456
457//_____________________________________________________________________________
458void AliTOFAlignment::AlignFromSurvey()
459{
99a365f3 460 //From Survey data, derive the needed transformations to get the
5398b994 461 //Alignment Objects.
462 //Again, highly "inspired" to Raffaele's example...
463
464 fTOFAlignObjArray = new TObjArray(kMaxAlignObj);
465 Int_t index=0; //let all SM modules have index=0
ae079791 466 AliGeomManager::ELayerID layer = AliGeomManager::kInvalidLayer;
467 UShort_t dvoluid = AliGeomManager::LayerToVolUID(layer,index); //dummy vol id
5398b994 468
469 for(Int_t iSM=0;iSM<18;iSM++){
99a365f3 470
471 printf("\n\n******Survey analysis for TOF SuperModule ************** %i \n",iSM);
472
5398b994 473 Double_t ngA[3], ngB[3], ngC[3], ngD[3];// real FM point coord., global RS
474
99a365f3 475 // Get the 'realistic' input from the Survey Matrix
5398b994 476 for(Int_t iFM=0;iFM<3;iFM++){
477 ngA[iFM]= fTOFSurveyFM[iSM][0][iFM];
478 ngB[iFM]= fTOFSurveyFM[iSM][1][iFM];
99a365f3 479 ngC[iFM]= fTOFSurveyFM[iSM][2][iFM];
480 ngD[iFM]= fTOFSurveyFM[iSM][3][iFM];
5398b994 481 }
482
483 // From the new fiducial marks coordinates derive back the
484 // new global position of the surveyed volume
485 //*** What follows is the actual survey-to-alignment procedure
486
487 Double_t ab[3], bc[3], n[3];
488 Double_t plane[4], s=1.;
489
490 // first vector on the plane of the fiducial marks
491 for(Int_t i=0;i<3;i++){
492 ab[i] = (ngB[i] - ngA[i]);
493 }
494
495 // second vector on the plane of the fiducial marks
496 for(Int_t i=0;i<3;i++){
497 bc[i] = (ngC[i] - ngB[i]);
498 }
499
500 // vector normal to the plane of the fiducial marks obtained
501 // as cross product of the two vectors on the plane d0^d1
502 n[0] = (ab[1] * bc[2] - ab[2] * bc[1]);
503 n[1] = (ab[2] * bc[0] - ab[0] * bc[2]);
504 n[2] = (ab[0] * bc[1] - ab[1] * bc[0]);
505
506 Double_t sizen = TMath::Sqrt( n[0]*n[0] + n[1]*n[1] + n[2]*n[2] );
507 if(sizen>1.e-8){
508 s = Double_t(1.)/sizen ; //normalization factor
509 }else{
510 AliInfo("Problem in normalizing the vector");
511 }
512
513 // plane expressed in the hessian normal form, see:
514 // http://mathworld.wolfram.com/HessianNormalForm.html
515 // the first three are the coordinates of the orthonormal vector
516 // the fourth coordinate is equal to the distance from the origin
517
518 for(Int_t i=0;i<3;i++){
519 plane[i] = n[i] * s;
520 }
521 plane[3] = ( plane[0] * ngA[0] + plane[1] * ngA[1] + plane[2] * ngA[2] );
522
523 // The center of the square with fiducial marks as corners
524 // as the middle point of one diagonal - md
525 // Used below to get the center - orig - of the surveyed box
526
527 Double_t orig[3], md[3];
528 for(Int_t i=0;i<3;i++){
529 md[i] = (ngA[i] + ngC[i]) * 0.5;
530 }
531
532 // The center of the box, gives the global translation
5398b994 533 for(Int_t i=0;i<3;i++){
534 orig[i] = md[i] - plane[i]*fgkYFM;
535 }
536
537 // get local directions needed to write the global rotation matrix
538 // for the surveyed volume by normalising vectors ab and bc
5398b994 539 Double_t sx = TMath::Sqrt(ab[0]*ab[0] + ab[1]*ab[1] + ab[2]*ab[2]);
540 if(sx>1.e-8){
541 for(Int_t i=0;i<3;i++){
542 ab[i] /= sx;
543 }
544 }
545 Double_t sy = TMath::Sqrt(bc[0]*bc[0] + bc[1]*bc[1] + bc[2]*bc[2]);
546 if(sy>1.e-8){
547 for(Int_t i=0;i<3;i++){
548 bc[i] /= sy;
549 }
550 }
5398b994 551 Double_t rot[9] = {ab[0],plane[0],bc[0],ab[1],plane[1],-bc[1],ab[2],plane[2],-bc[2]}; // the rotation matrix
99a365f3 552
553 // the Aligned matrix for the current TOF SMS in the Global RS, as derived from Survey:
5398b994 554 TGeoHMatrix ng;
555 ng.SetTranslation(orig);
556 ng.SetRotation(rot);
99a365f3 557 printf("\n\n**** The Misaligned Matrix in GRS, as from Survey data ***\n");
5398b994 558 ng.Print();
99a365f3 559
560 // Calculate the delta transformation wrt Ideal geometry
561 // (Should be gdelta.rot ==I and gdelta.tr=0 if no misalignment is applied.)
562 printf("\n\n**** The ideal matrix ***\n");
563 fTOFMatrixId[iSM]->Print();
5398b994 564 TGeoHMatrix gdelta =fTOFMatrixId[iSM]->Inverse();
99a365f3 565 printf("\n\n**** The inverse of the ideal matrix ***\n");
566 gdelta.Print();
5398b994 567 gdelta.MultiplyLeft(&ng);
99a365f3 568 printf("\n\n**** The Delta Matrix in GRS, as from Survey data ***\n");
569 gdelta.Print();
570
571 // Now Write the Alignment Objects....
572 TString symname(Form("TOF/sm%02d",iSM));
573 AliAlignObjMatrix* o = new AliAlignObjMatrix(symname.Data(),dvoluid,gdelta,kTRUE);
574 fTOFAlignObjArray->Add(o);
5398b994 575 }
5398b994 576 // saving TOF AligObjs from survey on a file, for the moment..
577 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
578 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
579 TFile f("TOFAlignFromSurvey.root","RECREATE");
580 f.cd();
581 f.WriteObject(fTOFAlignObjArray,"TOFAlignObjs","kSingleKey");
582 f.Close();
583}