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 Revision 1.19 2007/10/02 09:46:08 arcelli
19 add methods to retrieve real survey data, and make some analysis (by B. Guerzoni)
21 Revision 1.17 2007/06/06 16:26:46 arcelli
22 remove fall-back call to local CDB storage
24 Revision 1.16 2007/05/15 16:25:44 cvetan
25 Moving the alignment-related static methods from AliAlignObj to the new geometry steering class AliGeomManager (macro from Raffaele)
27 Revision 1.15 2007/05/03 09:25:10 decaro
28 Coding convention: RN13 violation -> suppression
30 Revision 1.14 2007/04/18 14:49:54 arcelli
31 Some code cleanup, added more debug info
33 Revision 1.13 2007/04/17 16:38:36 arcelli
34 Include Methods to derive TOF AlignObjs from Survey Data
36 Revision 1.12 2007/02/28 18:09:23 arcelli
37 Add protection against failed retrieval of the CDB cal object
39 Revision 1.11 2006/09/19 14:31:26 cvetan
40 Bugfixes and clean-up of alignment object classes. Introduction of so called symbolic names used to identify the alignable volumes (Raffaele and Cvetan)
42 Revision 1.10 2006/08/22 13:26:05 arcelli
43 removal of effective c++ warnings (C.Zampolli)
45 Revision 1.9 2006/08/10 14:46:54 decaro
46 TOF raw data format: updated version
48 Revision 1.8 2006/05/04 19:41:42 hristov
49 Possibility for partial TOF geometry (S.Arcelli)
51 Revision 1.7 2006/04/27 13:13:29 hristov
52 Moving the destructor to the implementation file
54 Revision 1.6 2006/04/20 22:30:49 hristov
55 Coding conventions (Annalisa)
57 Revision 1.5 2006/04/16 22:29:05 hristov
58 Coding conventions (Annalisa)
60 Revision 1.4 2006/04/05 08:35:38 hristov
61 Coding conventions (S.Arcelli, C.Zampolli)
63 Revision 1.3 2006/03/31 13:49:07 arcelli
64 Removing some junk printout
66 Revision 1.2 2006/03/31 11:26:30 arcelli
67 changing CDB Ids according to standard convention
69 Revision 1.1 2006/03/28 14:54:48 arcelli
70 class for TOF alignment
72 author: Silvia Arcelli, arcelli@bo.infn.it
75 /////////////////////////////////////////////////////////
77 // Class for alignment procedure //
81 /////////////////////////////////////////////////////////
85 #include "TGeoMatrix.h"
89 #include "TGeoManager.h"
90 #include "TGeoVolume.h"
93 #include "TGeoPhysicalNode.h"
95 #include "TObjString.h"
98 //#include "AliAlignObj.h"
99 #include "AliAlignObjParams.h"
100 #include "AliAlignObjMatrix.h"
101 #include "AliCDBManager.h"
102 #include "AliCDBMetaData.h"
103 #include "AliCDBId.h"
104 #include "AliCDBEntry.h"
105 #include "AliTOFAlignment.h"
106 #include "AliSurveyObj.h"
107 #include "AliSurveyPoint.h"
110 ClassImp(AliTOFAlignment)
112 const Double_t AliTOFAlignment::fgkRorigTOF = 384.5; // Mean Radius of the TOF ext. volume, cm
113 const Double_t AliTOFAlignment::fgkX1BTOF = 124.5; //x1 size of BTOF
114 const Double_t AliTOFAlignment::fgkX2BTOF = 134.7262; //x2 size of BTOF
115 const Double_t AliTOFAlignment::fgkYBTOF = 747.2; //y size of BTOF
116 const Double_t AliTOFAlignment::fgkZBTOF = 29.0; //z size of BTOF
117 const Double_t AliTOFAlignment::fgkXFM = 38.0; //x pos of FM in BTOF, cm
118 const Double_t AliTOFAlignment::fgkYFM = 457.3; //y pos of FM in BTOF, cm
119 const Double_t AliTOFAlignment::fgkZFM = 11.2; //z pos of FM in BTOF, cm
121 //_____________________________________________________________________________
122 AliTOFAlignment::AliTOFAlignment():
123 TTask("AliTOFAlignment",""),
126 fTOFAlignObjArray(0x0)
128 //AliTOFalignment main Ctor
129 for(Int_t i=0; i<18;i++)
130 for(Int_t j=0; j<5; j++)
132 for(Int_t i=0; i<72; i++)
133 for (Int_t j=0; j<6; j++)
136 for(Int_t i=0; i<18;i++)
140 //_____________________________________________________________________________
141 AliTOFAlignment::AliTOFAlignment(const AliTOFAlignment &t):
143 fNTOFAlignObj(t.fNTOFAlignObj),
145 fTOFAlignObjArray(t.fTOFAlignObjArray)
147 //AliTOFAlignment copy Ctor
149 //AliTOFalignment main Ctor
150 for(Int_t i=0; i<18;i++)
151 for(Int_t j=0; j<5; j++)
152 fNFMforSM[i][j]=t.fNFMforSM[i][j];
153 for(Int_t i=0; i<72; i++)
154 for (Int_t j=0; j<6; j++)
155 fCombFMData[i][j]=t.fCombFMData[i][j];
157 for(Int_t i=0; i<18;i++)
158 fTOFMatrixId[i]=t.fTOFMatrixId[i];
161 //_____________________________________________________________________________
162 AliTOFAlignment& AliTOFAlignment::operator=(const AliTOFAlignment &t){
163 //AliTOFAlignment assignment operator
169 fNTOFAlignObj=t.fNTOFAlignObj;
171 fTOFAlignObjArray=t.fTOFAlignObjArray;
172 for(Int_t i=0; i<18;i++)
173 fTOFMatrixId[i]=t.fTOFMatrixId[i];
178 //_____________________________________________________________________________
179 AliTOFAlignment::~AliTOFAlignment() {
180 delete fTOFAlignObjArray;
184 //_____________________________________________________________________________
185 void AliTOFAlignment::Smear(Float_t * const tr, Float_t * const rot)
187 //Introduce Random Offset/Tilts
188 fTOFAlignObjArray = new TObjArray(kMaxAlignObj);
189 Float_t dx, dy, dz; // shifts
190 Float_t dpsi, dtheta, dphi; // angular displacements
191 TRandom *rnd = new TRandom(1567);
194 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
195 UShort_t iIndex=0; //dummy volume index
196 // AliGeomManager::ELayerID iLayer = AliGeomManager::kTOF;
197 // Int_t iIndex=1; //dummy volume index
198 UShort_t dvoluid = AliGeomManager::LayerToVolUID(iLayer,iIndex); //dummy volume identity
201 const Int_t kSize=100;
203 for (i = 0; i<nSMTOF ; i++) {
204 snprintf(path,kSize,"/ALIC_1/B077_1/BSEGMO%i_1/BTOF%i_1",i,i);
206 dx = (rnd->Gaus(0.,1.))*tr[0];
207 dy = (rnd->Gaus(0.,1.))*tr[1];
208 dz = (rnd->Gaus(0.,1.))*tr[2];
212 AliAlignObjParams *o =new AliAlignObjParams(path, dvoluid, dx, dy, dz, dpsi, dtheta, dphi, kTRUE);
213 fTOFAlignObjArray->Add(o);
216 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
217 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
221 //_____________________________________________________________________________
222 void AliTOFAlignment::Align(Float_t * const tr, Float_t * const rot)
224 //Introduce Offset/Tilts
226 fTOFAlignObjArray = new TObjArray(kMaxAlignObj);
227 Float_t dx, dy, dz; // shifts
228 Float_t dpsi, dtheta, dphi; // angular displacements
232 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
233 UShort_t iIndex=0; //dummy volume index
234 UShort_t dvoluid = AliGeomManager::LayerToVolUID(iLayer,iIndex); //dummy volume identity
236 const Int_t kSize=100;
239 for (i = 0; i<nSMTOF ; i++) {
241 snprintf(path,kSize,"/ALIC_1/B077_1/BSEGMO%i_1/BTOF%i_1",i,i);
249 AliAlignObjParams *o =new AliAlignObjParams(path, dvoluid, dx, dy, dz, dpsi, dtheta, dphi, kTRUE);
250 fTOFAlignObjArray->Add(o);
252 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
253 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
255 //_____________________________________________________________________________
256 void AliTOFAlignment::WriteParOnCDB(const Char_t *sel, Int_t minrun, Int_t maxrun)
258 //Write Align Par on CDB
259 AliCDBManager *man = AliCDBManager::Instance();
260 const Char_t *sel1 = "AlignPar" ;
261 const Int_t kSize=100;
263 snprintf(out,kSize,"%s/%s",sel,sel1);
264 AliCDBId idTOFAlign(out,minrun,maxrun);
265 AliCDBMetaData *mdTOFAlign = new AliCDBMetaData();
266 mdTOFAlign->SetResponsible("TOF");
267 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
268 man->Put(fTOFAlignObjArray,idTOFAlign,mdTOFAlign);
270 //_____________________________________________________________________________
271 void AliTOFAlignment::ReadParFromCDB(const Char_t *sel, Int_t nrun)
273 //Read Align Par from CDB
274 AliCDBManager *man = AliCDBManager::Instance();
275 const Char_t *sel1 = "AlignPar" ;
276 const Int_t kSize=100;
279 snprintf(out,kSize,"%s/%s",sel,sel1);
280 AliCDBEntry *entry = man->Get(out,nrun);
282 AliError(Form("Failed to get entry: %s",out));
285 fTOFAlignObjArray=(TObjArray*)entry->GetObject();
286 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
287 AliInfo(Form("Number of Alignable Volumes from CDB: %d",fNTOFAlignObj));
290 //_____________________________________________________________________________
291 void AliTOFAlignment::WriteSimParOnCDB(const Char_t *sel, Int_t minrun, Int_t maxrun)
293 //Write Sim Align Par on CDB
294 AliCDBManager *man = AliCDBManager::Instance();
295 const Char_t *sel1 = "AlignSimPar" ;
296 const Int_t kSize=100;
298 snprintf(out,kSize,"%s/%s",sel,sel1);
299 AliCDBId idTOFAlign(out,minrun,maxrun);
300 AliCDBMetaData *mdTOFAlign = new AliCDBMetaData();
301 mdTOFAlign->SetResponsible("TOF");
302 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
303 man->Put(fTOFAlignObjArray,idTOFAlign,mdTOFAlign);
305 //_____________________________________________________________________________
306 void AliTOFAlignment::ReadSimParFromCDB(const Char_t *sel, Int_t nrun){
307 //Read Sim Align Par from CDB
308 AliCDBManager *man = AliCDBManager::Instance();
309 const Char_t *sel1 = "AlignSimPar" ;
310 const Int_t kSize=100;
312 snprintf(out,kSize,"%s/%s",sel,sel1);
313 AliCDBEntry *entry = man->Get(out,nrun);
315 AliError(Form("Failed to get entry: %s",out));
318 fTOFAlignObjArray=(TObjArray*)entry->GetObject();
319 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
320 AliInfo(Form("Number of Alignable Volumes from CDB: %d",fNTOFAlignObj));
323 //_____________________________________________________________________________
324 void AliTOFAlignment::WriteOnCDBforDC()
326 //Write Align Par on CDB for DC06
327 AliCDBManager *man = AliCDBManager::Instance();
328 AliCDBId idTOFAlign("TOF/Align/Data",0,0);
329 AliCDBMetaData *mdTOFAlign = new AliCDBMetaData();
330 mdTOFAlign->SetComment("Alignment objects for ideal geometry, i.e. applying them to TGeo has to leave geometry unchanged");
331 mdTOFAlign->SetResponsible("TOF");
332 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
333 man->Put(fTOFAlignObjArray,idTOFAlign,mdTOFAlign);
335 //_____________________________________________________________________________
336 void AliTOFAlignment::ReadFromCDBforDC()
338 //Read Sim Align Par from CDB for DC06
339 AliCDBManager *man = AliCDBManager::Instance();
340 AliCDBEntry *entry = man->Get("TOF/Align/Data",0);
341 fTOFAlignObjArray=(TObjArray*)entry->GetObject();
342 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
343 AliInfo(Form("Number of Alignable Volumes from CDB: %d",fNTOFAlignObj));
347 //_____________________________________________________________________________
348 void AliTOFAlignment::BuildGeomForSurvey()
351 //Generates the ideal TOF structure with four Fiducial Marks in each
352 //supermodule (two on each z side) in their expected position.
355 fTOFmgr = new TGeoManager("Geom","survey to alignment for TOF");
356 TGeoMedium *medium = 0;
357 TGeoVolume *top = fTOFmgr->MakeBox("TOP",medium,1000,1000,1000);
358 fTOFmgr->SetTopVolume(top);
359 // make shape components:
360 // This is the BTOF containing the FTOA
361 TGeoTrd1 *strd1 = new TGeoTrd1(fgkX1BTOF*0.5,fgkX2BTOF*0.5, fgkYBTOF*0.5,fgkZBTOF*0.5);
362 TGeoVolume* trd1[18];
364 // Now four fiducial marks on SM, expressed in local coordinates
365 // They are positioned at x=+/- 38 cm, y=+/- 457.3 cm, z=11.2 cm
367 TGeoBBox *fmbox = new TGeoBBox(1,1,1);
368 TGeoVolume* fm = new TGeoVolume("FM",fmbox);
372 TGeoTranslation* mAtr = new TGeoTranslation("mAtr",-fgkXFM, -fgkYFM ,fgkZFM);
373 TGeoTranslation* mBtr = new TGeoTranslation("mBtr",fgkXFM, -fgkYFM ,fgkZFM );
374 TGeoTranslation* mCtr = new TGeoTranslation("mCtr",fgkXFM, fgkYFM ,fgkZFM );
375 TGeoTranslation* mDtr = new TGeoTranslation("mDtr",-fgkXFM, fgkYFM ,fgkZFM );
377 // position all this stuff in the global ALICE frame
379 const Int_t kSize=100;
384 Float_t smR = fgkRorigTOF;
385 for (Int_t iSM = 0; iSM < 18; iSM++) {
386 Int_t mod = iSM + 13;
387 if (mod > 17) mod -= 18;
388 snprintf(name,kSize, "BTOF%d",mod);
389 trd1[iSM] = new TGeoVolume(name,strd1);
390 Float_t phi = iSM * 20.;
391 Float_t phi2 = 270 + phi;
392 if (phi2 >= 360.) phi2 -= 360.;
393 smX = TMath::Sin(phi*TMath::Pi()/180.)*smR;
394 smY = -TMath::Cos(phi*TMath::Pi()/180.)*smR;
396 TGeoRotation* bTOFRot = new TGeoRotation("bTOFRot",phi,90,0.);
397 TGeoCombiTrans trans = *(new TGeoCombiTrans(smX,smY,smZ, bTOFRot));
398 TGeoMatrix* id = new TGeoHMatrix();
399 TGeoHMatrix transMat = *id * trans;
400 TGeoHMatrix *smTrans = new TGeoHMatrix(transMat);
402 trd1[iSM]->AddNode(fm,1,mAtr); //place FM in BTOF
403 trd1[iSM]->AddNode(fm,2,mBtr);
404 trd1[iSM]->AddNode(fm,3,mCtr);
405 trd1[iSM]->AddNode(fm,4,mDtr);
406 top->AddNode(trd1[iSM],1,smTrans); //place BTOF_iSM in ALICE
407 trd1[iSM]->SetVisDaughters();
408 trd1[iSM]->SetLineColor(iSM); //black
412 fTOFmgr->CloseGeometry();
413 fTOFmgr->GetTopVolume()->Draw();
414 fTOFmgr->SetVisOption(0);
415 fTOFmgr->SetVisLevel(6);
417 // Now Store the "Ideal" Global Matrices (local to global) for later use
419 for (Int_t iSM = 0; iSM < 18; iSM++) {
421 snprintf(name,kSize, "TOP_1/BTOF%d_1", iSM);
422 printf("\n\n***************** TOF SuperModule: %s ****************** \n",name);
423 TGeoPhysicalNode* pn3 = fTOFmgr->MakePhysicalNode(name);
424 fTOFMatrixId[iSM] = pn3->GetMatrix(); //save "ideal" global matrix
425 printf("\n\n*************** The Ideal Matrix in GRS *****************\n");
426 fTOFMatrixId[iSM]->Print();
431 //_____________________________________________________________________________
432 void AliTOFAlignment::InsertMisAlignment(Float_t * const mis)
434 // Now Apply the Displacements and store the misaligned FM positions...
438 Double_t lA[3]={-fgkXFM, -fgkYFM ,fgkZFM};
439 Double_t lB[3]={fgkXFM, -fgkYFM ,fgkZFM};
440 Double_t lC[3]={fgkXFM, fgkYFM ,fgkZFM};
441 Double_t lD[3]={-fgkXFM, fgkYFM ,fgkZFM};
443 const Int_t kSize=16;
446 for(Int_t iSM=0;iSM<18;iSM++){
447 snprintf(name,kSize, "TOP_1/BTOF%d_1", iSM);
449 printf("\n\n******Misaligning TOF SuperModule ************** %s \n",name);
451 // ************* get ideal global matrix *******************
452 TGeoHMatrix g3 = *fTOFmgr->GetCurrentMatrix();
453 AliInfo(Form("This is the ideal global trasformation of SM %i",iSM));
454 g3.Print(); // g3 is the local(BTOF) to global (ALICE) matrix and is the same of fTOFMatrixId
455 TGeoNode* n3 = fTOFmgr->GetCurrentNode();
456 TGeoMatrix* l3 = n3->GetMatrix();
458 Double_t gA[3], gB[3], gC[3], gD[3]; // ideal global FM point coord.
459 g3.LocalToMaster(lA,gA);
460 g3.LocalToMaster(lB,gB);
461 g3.LocalToMaster(lC,gC);
462 g3.LocalToMaster(lD,gD);
464 // We apply a delta transformation to the surveyed vol to represent
465 // its real position, given below by ng3 nl3, which differs from its
466 // ideal position saved above in g3 and l3
468 //we have to express the displacements as regards the old local RS (non misaligned BTOF)
469 Double_t dx = mis[0]; // shift along x
470 Double_t dy = mis[1]; // shift along y
471 Double_t dz = mis[2]; // shift along z
472 Double_t dphi = mis[3]; // rot around z
473 Double_t dtheta = mis[4]; // rot around x'
474 Double_t dpsi = mis[5]; // rot around z''
476 TGeoRotation* rrot = new TGeoRotation("rot",dphi,dtheta,dpsi);
477 TGeoCombiTrans localdelta = *(new TGeoCombiTrans(dx,dy,dz, rrot));
478 AliInfo(Form("This is the local delta trasformation for SM %i \n",iSM));
480 TGeoHMatrix nlocal = *l3 * localdelta;
481 TGeoHMatrix* nl3 = new TGeoHMatrix(nlocal); // new matrix, representing real position (from new local mis RS to the global one)
483 TGeoPhysicalNode* pn3 = fTOFmgr->MakePhysicalNode(name);
487 TGeoHMatrix* ng3 = pn3->GetMatrix(); //"real" global matrix, what survey sees
488 printf("\n\n************* The Misaligned Matrix in GRS **************\n");
490 Double_t ngA[3], ngB[3], ngC[3], ngD[3];// real FM point coord., global RS
491 ng3->LocalToMaster(lA,ngA);
492 ng3->LocalToMaster(lB,ngB);
493 ng3->LocalToMaster(lC,ngC);
494 ng3->LocalToMaster(lD,ngD);
496 for(Int_t coord=0;coord<3;coord++){
497 fCombFMData[iSM*4][2*coord]=ngA[coord];
498 fCombFMData[iSM*4][2*coord+1]=1;
499 fCombFMData[iSM*4+1][2*coord]=ngB[coord];
500 fCombFMData[iSM*4+1][2*coord+1]=1;
501 fCombFMData[iSM*4+2][2*coord]=ngC[coord];
502 fCombFMData[iSM*4+2][2*coord+1]=1;
503 fCombFMData[iSM*4+3][2*coord]=ngD[coord];
504 fCombFMData[iSM*4+3][2*coord+1]=1;
510 //____________________________________________________________________________
511 void AliTOFAlignment::WriteCombData(const Char_t *nomefile, Int_t option)
513 // 1 for simulated data; 0 for data from survey file
514 // write combined data on a file
518 /* Open file in text mode: */
519 if( (data = fopen( nomefile, "w+t" )) != NULL ){
521 fprintf( data, "simulated data\n" );} else {
522 fprintf( data, "survey data\n" );}
524 fprintf( data, "data from InsertMisAlignmentBTOF method\n");}
525 else {fprintf( data, "real survey data from text file (coordinate in global RS)\n");}
526 fprintf( data, "Point Name,XPH,YPH,ZPH,PrecisionX(mm),PrecisionY(mm),PrecisionZ(mm)\n");
527 fprintf( data, "> Data:\n");
528 for(Int_t i=0;i<72;i++){
529 if (fCombFMData[i][0]!=0){
530 fprintf( data, "SM%02iFM%i %f %f %f M Y %f %f %f\n", (i-i%4)/4, i%4, fCombFMData[i][0],fCombFMData[i][2],fCombFMData[i][4],fCombFMData[i][1]*10,fCombFMData[i][3]*10,fCombFMData[i][5]*10);
536 printf( "Problem opening the file\n" );
542 //____________________________________________________________________________
543 void AliTOFAlignment::WriteSimSurveyData(const Char_t *nomefile)
545 // write sim data in standard format
550 /* Open file in text mode: */
551 if( (data = fopen( nomefile, "w+t" )) != NULL )
553 fprintf( data, "> Title:\n" );
554 fprintf( data, "simulated data\n" );
555 fprintf( data, "> Date:\n" );
556 fprintf( data, "24.09.2007\n" );
557 fprintf( data, "> Subdetector:\n" );
558 fprintf( data, "TOF\n" );
559 fprintf( data, "> Report URL:\n" );
560 fprintf( data, "https://edms.cern.ch/document/835615\n" );
561 fprintf( data, "> Version:\n" );
562 fprintf( data, "1\n");
563 fprintf( data, "> General Observations:\n");
564 fprintf( data, "data from InsertMisAlignmentBTOF method\n");
565 fprintf( data, "> Coordinate System:\n");
566 fprintf( data, "\\ALICEPH\n");
567 fprintf( data, "> Units:\n");
568 fprintf( data, "cm\n");
569 fprintf( data, "> Nr Columns:\n");
570 fprintf( data, "9\n");
571 fprintf( data, "> Column Names:\n");
572 fprintf( data, "Point Name,XPH,YPH,ZPH,Point Type,Target Used,PrecisionX(mm),PrecisionY(mm),PrecisionZ(mm)\n");
573 fprintf( data, "> Data:\n");
574 for(Int_t i=0;i<72;i++)
575 if (fCombFMData[i][0]!=0)
576 fprintf( data, "SM%02iFM%i %f %f %f M Y %f %f %f\n", (i-i%4)/4, i%4, fCombFMData[i][0],fCombFMData[i][2],fCombFMData[i][4],fCombFMData[i][1],fCombFMData[i][3],fCombFMData[i][5]);
581 printf( "Problem opening the file\n" );
584 //____________________________________________________________________________
585 void AliTOFAlignment::MakeDefData(const Int_t nf,TString namefiles[])
587 //this method combines survey data from different files (namefiles[])
591 Float_t data[72][6][100];
592 for (Int_t i=0;i<72;i++)
593 for (Int_t j=0; j<6; j++)
594 for(Int_t k=0; k<100; k++)
598 Long64_t totdata[72]={0};
600 for (Int_t ii=0;ii<nf; ii++)
602 AliSurveyObj *so = new AliSurveyObj();
603 const Char_t *nome=namefiles[ii];
604 so->FillFromLocalFile(nome);
605 TObjArray *points = so->GetData();
606 Int_t nSurveyPoint=points->GetEntries();
607 for(Int_t jj=0;jj<nSurveyPoint;jj++){
608 const char* pointName= ((AliSurveyPoint *) points->At(jj))->GetPointName().Data();
609 nfm=atoi(&pointName[6]);
610 nsm=atoi(&pointName[2]);
611 data[nsm*4+nfm][0][totdata[nsm*4+nfm]]=((AliSurveyPoint *) points->At(jj))->GetX();
612 data[nsm*4+nfm][2][totdata[nsm*4+nfm]]=((AliSurveyPoint *) points->At(jj))->GetY();
613 data[nsm*4+nfm][4][totdata[nsm*4+nfm]]=((AliSurveyPoint *) points->At(jj))->GetZ();
614 data[nsm*4+nfm][1][totdata[nsm*4+nfm]]=((AliSurveyPoint *) points->At(jj))->GetPrecisionX();
615 data[nsm*4+nfm][3][totdata[nsm*4+nfm]]=((AliSurveyPoint *) points->At(jj))->GetPrecisionY();
616 data[nsm*4+nfm][5][totdata[nsm*4+nfm]]=((AliSurveyPoint *) points->At(jj))->GetPrecisionZ();
617 totdata[nsm*4+nfm]=totdata[nsm*4+nfm]+1;
623 for(Int_t i=0; i<72 ;i++){
624 Float_t numx=0, numy=0,numz=0, comodox=0, comodoy=0, comodoz=0,denx=0, deny=0, denz=0;
626 for(Int_t j=0; j<totdata[i]; j++){
627 comodox=1/(data[i][1][j]/10*data[i][1][j]/10);//precision in mm, position in cm
628 numx=numx+data[i][0][j]*comodox;
630 comodoy=1/(data[i][3][j]/10*data[i][3][j]/10);
631 numy=numy+data[i][2][j]*comodoy;
633 comodoz=1/(data[i][5][j]/10*data[i][5][j]/10);
634 numz=numz+data[i][4][j]*comodoz;
637 fCombFMData[i][1]=TMath::Sqrt(1/denx); //error for x position
638 fCombFMData[i][3]=TMath::Sqrt(1/deny); //error for y position
639 fCombFMData[i][5]=TMath::Sqrt(1/denz); //error for z position
640 fCombFMData[i][0]=numx/denx; //combined survey data for x position of FM
641 fCombFMData[i][2]=numy/deny; //combined survey data for y position of FM
642 fCombFMData[i][4]=numz/denz; //combined survey data for z position of FM
646 for(Int_t i=0;i<72;i++)
647 if (fCombFMData[i][0]!=0){
648 fNFMforSM[(i-i%4)/4][i%4]=1;
649 fNFMforSM[(i-i%4)/4][4]=fNFMforSM[(i-i%4)/4][4]+1;
653 //_____________________________________________________________________________
654 void AliTOFAlignment::ReadSurveyDataAndAlign(){
656 // read the survey data and, if we know the positions of at least 3 FM
657 //for a SM, call the right Alignement procedure
659 fTOFAlignObjArray = new TObjArray(kMaxAlignObj);
661 Float_t deltaFM0=0, deltaFM1=0, deltaFM2=0, deltaFM3=0;
663 for(Int_t i=0; i<18; i++){
664 switch(fNFMforSM[i][4]){
666 printf("we don't know the position of any FM of SM %i\n",i);
669 printf("we know the position of only one FM for SM %i\n",i);
673 printf("we know the position of only 2 FM for SM %i\n",i);
677 if (fNFMforSM[i][0]==1 && fNFMforSM[i][1]==1 && fNFMforSM[i][2]==1){
678 printf("we know the position of FM A B C for SM %i\n",i);
679 AliTOFAlignment::AlignFromSurveyABC(i);};
682 if (fNFMforSM[i][0]==1 && fNFMforSM[i][1]==1 && fNFMforSM[i][3]==1){
683 printf("we know the position of FM A B D for SM %i\n",i);
684 AliTOFAlignment::AlignFromSurveyABD(i);};
687 if (fNFMforSM[i][0]==1 && fNFMforSM[i][2]==1 && fNFMforSM[i][3]==1){
688 printf("we know the position of FM A C D for SM %i\n",i);
689 AliTOFAlignment::AlignFromSurveyACD(i);};
692 if (fNFMforSM[i][1]==1 && fNFMforSM[i][2]==1 && fNFMforSM[i][3]==1){
693 printf("we know the position of FM B C D for SM %i\n",i);
694 AliTOFAlignment::AlignFromSurveyBCD(i);};
699 printf("we know the position of all the 4 FM for SM %i\n",i);
700 //check the precision of the measurement
702 deltaFM0=fCombFMData[i*4][1]/TMath::Abs(fCombFMData[i*4][0])+fCombFMData[i*4][3]/TMath::Abs(fCombFMData[i*4][2])+fCombFMData[i*4][5]/TMath::Abs(fCombFMData[i*4][4]);
703 deltaFM1=fCombFMData[i*4+1][1]/TMath::Abs(fCombFMData[i*4+1][0])+fCombFMData[i*4+1][3]/TMath::Abs(fCombFMData[i*4+1][2])+fCombFMData[i*4+1][5]/TMath::Abs(fCombFMData[i*4+1][4]);
704 deltaFM2=fCombFMData[i*4+2][1]/TMath::Abs(fCombFMData[i*4+2][0])+fCombFMData[i*4+2][3]/TMath::Abs(fCombFMData[i*4+2][2])+fCombFMData[i*4+2][5]/TMath::Abs(fCombFMData[i*4+2][4]);
705 deltaFM3=fCombFMData[i*4+3][1]/TMath::Abs(fCombFMData[i*4+3][0])+fCombFMData[i*4+3][3]/TMath::Abs(fCombFMData[i*4+3][2])+fCombFMData[i*4+3][5]/TMath::Abs(fCombFMData[i*4+3][4]);
707 //to AlignFromSurvey we use the 3 FM whose positions are known with greatest precision
708 if(deltaFM0>=deltaFM1 && deltaFM0>=deltaFM2 && deltaFM0>=deltaFM3){
709 printf("to Align we use FM B,C,D");
710 AliTOFAlignment::AlignFromSurveyBCD(i);} else
711 if(deltaFM1>=deltaFM0 && deltaFM1>=deltaFM2 && deltaFM1>=deltaFM3){
712 printf("to Align we use FM A,C,D");
713 AliTOFAlignment::AlignFromSurveyACD(i);} else
714 if(deltaFM2>=deltaFM0 && deltaFM2>=deltaFM1 && deltaFM2>=deltaFM3){
715 printf("to Align we use FM A,B,D");
716 AliTOFAlignment::AlignFromSurveyABD(i);} else{
717 printf("to Align we use FM A,B,C");
718 AliTOFAlignment::AlignFromSurveyABC(i);}
725 // saving TOF AligObjs from survey on a file, for the moment..
726 fNTOFAlignObj=fTOFAlignObjArray->GetEntries();
727 AliInfo(Form("Number of Alignable Volumes: %d",fNTOFAlignObj));
728 TFile f("TOFAlignFromSurvey.root","RECREATE");
730 f.WriteObject(fTOFAlignObjArray,"TOFAlignObjs","kSingleKey");
736 //_____________________________________________________________________________
737 void AliTOFAlignment::AlignFromSurveyABC(Int_t iSM)
740 //From Survey data, derive the needed transformations to get the
742 //Again, highly "inspired" to Raffaele's example...
745 Double_t ngA[3], ngB[3], ngC[3]; // real FM point coord., global RS
746 // Get the 'realistic' input from the Survey Matrix
747 for(Int_t coord=0;coord<3;coord++){
748 ngA[coord]= fCombFMData[iSM*4][coord*2];
749 ngB[coord]= fCombFMData[iSM*4+1][coord*2];
750 ngC[coord]= fCombFMData[iSM*4+2][coord*2];
753 printf("\n\n******Survey analysis for TOF SuperModule ************** %i \n",iSM);
755 // From the real fiducial marks coordinates derive back the
756 // new global position of the surveyed volume
757 //*** What follows is the actual survey-to-alignment procedure
759 Double_t ab[3], bc[3], n[3];
760 Double_t plane[4], s=1.;
762 // first vector on the plane of the fiducial marks
763 for(Int_t i=0;i<3;i++){
764 ab[i] = (ngB[i] - ngA[i]);
767 // second vector on the plane of the fiducial marks
768 for(Int_t i=0;i<3;i++){
769 bc[i] = (ngC[i] - ngB[i]);
772 // vector normal to the plane of the fiducial marks obtained
773 // as cross product of the two vectors on the plane d0^d1
774 n[0] = (ab[1] * bc[2] - ab[2] * bc[1]);
775 n[1] = (ab[2] * bc[0] - ab[0] * bc[2]);
776 n[2] = (ab[0] * bc[1] - ab[1] * bc[0]);
778 Double_t sizen = TMath::Sqrt( n[0]*n[0] + n[1]*n[1] + n[2]*n[2] );
780 s = Double_t(1.)/sizen ; //normalization factor
782 AliInfo("Problem in normalizing the vector");
785 // plane expressed in the hessian normal form, see:
786 // http://mathworld.wolfram.com/HessianNormalForm.html
787 // the first three are the coordinates of the orthonormal vector
788 // the fourth coordinate is equal to the distance from the origin
790 for(Int_t i=0;i<3;i++){
793 plane[3] = ( plane[0] * ngA[0] + plane[1] * ngA[1] + plane[2] * ngA[2] );
795 // The center of the square with fiducial marks as corners
796 // as the middle point of one diagonal - md
797 // Used below to get the center - orig - of the surveyed box
799 Double_t orig[3], md[3];
800 for(Int_t i=0;i<3;i++){
801 md[i] = (ngA[i] + ngC[i]) * 0.5;
804 // The center of the box, gives the global translation
805 for(Int_t i=0;i<3;i++){
806 orig[i] = md[i] - plane[i]*fgkZFM;
809 // get local directions needed to write the global rotation matrix
810 // for the surveyed volume by normalising vectors ab and bc
811 Double_t sx = TMath::Sqrt(ab[0]*ab[0] + ab[1]*ab[1] + ab[2]*ab[2]);
815 for(Int_t i=0;i<3;i++){
819 Double_t sy = TMath::Sqrt(bc[0]*bc[0] + bc[1]*bc[1] + bc[2]*bc[2]);
821 for(Int_t i=0;i<3;i++){
825 Double_t rot[9] = {ab[0],bc[0],plane[0],ab[1],bc[1],plane[1],ab[2],bc[2],plane[2]}; // the rotation matrix
826 // the Aligned matrix for the current TOF SM in the Global RS, as derived from Survey
828 ng.SetTranslation(orig);
830 printf("\n\n**** The Misaligned Matrix in GRS, as from Survey data ***\n");
833 // Calculate the delta transformation wrt Ideal geometry
834 // (Should be gdelta.rot ==I and gdelta.tr=0 if no misalignment is applied.)
836 printf("\n\n**** The ideal matrix ***\n");
837 fTOFMatrixId[iSM]->Print();
839 TGeoHMatrix gdelta =fTOFMatrixId[iSM]->Inverse();
840 printf("\n\n**** The inverse of the ideal matrix ***\n");
843 gdelta.MultiplyLeft(&ng);
844 printf("\n\n**** The Delta Matrix in GRS, as from Survey data ***\n");
845 gdelta.Print(); //this is the global delta trasformation
847 // Now Write the Alignment Objects....
848 Int_t index=0; //let all SM modules have index=0
849 AliGeomManager::ELayerID layer = AliGeomManager::kInvalidLayer;
850 UShort_t dvoluid = AliGeomManager::LayerToVolUID(layer,index); //dummy vol id
851 TString symname(Form("TOF/sm%02d",iSM));
852 AliAlignObjMatrix* o = new AliAlignObjMatrix(symname.Data(),dvoluid,gdelta,kTRUE);
853 fTOFAlignObjArray->Add(o);
858 //_____________________________________________________________________________
859 void AliTOFAlignment::AlignFromSurveyABD(Int_t iSM)
862 //From Survey data, derive the needed transformations to get the
864 //Again, highly "inspired" to Raffaele's example...
867 Double_t ngA[3], ngB[3], ngD[3];// real FM point coord., global RS
869 // Get the 'realistic' input from the Survey Matrix
870 for(Int_t coord=0;coord<3;coord++){
871 ngA[coord]= fCombFMData[iSM*4][coord*2];
872 ngB[coord]= fCombFMData[iSM*4+1][coord*2];
873 ngD[coord]= fCombFMData[iSM*4+3][coord*2];
876 printf("\n\n******Survey analysis for TOF SuperModule ************** %i \n",iSM);
878 // From the new fiducial marks coordinates derive back the
879 // new global position of the surveyed volume
880 //*** What follows is the actual survey-to-alignment procedure
882 Double_t ab[3], ad[3], n[3];
883 Double_t plane[4], s=1.;
885 // first vector on the plane of the fiducial marks
886 for(Int_t i=0;i<3;i++){
887 ab[i] = (ngB[i] - ngA[i]);
890 // second vector on the plane of the fiducial marks
891 for(Int_t i=0;i<3;i++){
892 ad[i] = (ngD[i] - ngA[i]);
895 // vector normal to the plane of the fiducial marks obtained
896 // as cross product of the two vectors on the plane d0^d1
897 n[0] = (ab[1] * ad[2] - ab[2] * ad[1]);
898 n[1] = (ab[2] * ad[0] - ab[0] * ad[2]);
899 n[2] = (ab[0] * ad[1] - ab[1] * ad[0]);
901 Double_t sizen = TMath::Sqrt( n[0]*n[0] + n[1]*n[1] + n[2]*n[2] );
903 s = Double_t(1.)/sizen ; //normalization factor
905 AliInfo("Problem in normalizing the vector");
908 // plane expressed in the hessian normal form, see:
909 // http://mathworld.wolfram.com/HessianNormalForm.html
910 // the first three are the coordinates of the orthonormal vector
911 // the fourth coordinate is equal to the distance from the origin
913 for(Int_t i=0;i<3;i++){
916 plane[3] = ( plane[0] * ngA[0] + plane[1] * ngA[1] + plane[2] * ngA[2] );
918 // The center of the square with fiducial marks as corners
919 // as the middle point of one diagonal - md
920 // Used below to get the center - orig - of the surveyed box
922 Double_t orig[3], md[3];
923 for(Int_t i=0;i<3;i++){
924 md[i] = (ngB[i] + ngD[i]) * 0.5;
927 // The center of the box, gives the global translation
928 for(Int_t i=0;i<3;i++){
929 orig[i] = md[i] - plane[i]*fgkZFM;
932 // get local directions needed to write the global rotation matrix
933 // for the surveyed volume by normalising vectors ab and bc
934 Double_t sx = TMath::Sqrt(ab[0]*ab[0] + ab[1]*ab[1] + ab[2]*ab[2]);
936 for(Int_t i=0;i<3;i++){
940 Double_t sy = TMath::Sqrt(ad[0]*ad[0] + ad[1]*ad[1] + ad[2]*ad[2]);
942 for(Int_t i=0;i<3;i++){
946 Double_t rot[9] = {ab[0],ad[0],plane[0],ab[1],ad[1],plane[1],ab[2],ad[2],plane[2]};
947 // the Aligned matrix for the current TOF SM in the Global RS, as derived from Survey:
949 ng.SetTranslation(orig);
951 printf("\n\n**** The Misaligned Matrix in GRS, as from Survey data ***\n");
954 // Calculate the delta transformation wrt Ideal geometry
955 // (Should be gdelta.rot ==I and gdelta.tr=0 if no misalignment is applied.)
957 printf("\n\n**** The ideal matrix ***\n");
958 fTOFMatrixId[iSM]->Print();
960 TGeoHMatrix gdelta =fTOFMatrixId[iSM]->Inverse();
961 printf("\n\n**** The inverse of the ideal matrix ***\n");
964 gdelta.MultiplyLeft(&ng);
965 printf("\n\n**** The Delta Matrix in GRS, as from Survey data ***\n");
966 gdelta.Print(); //global delta trasformation
968 // Now Write the Alignment Objects....
969 Int_t index=0; //let all SM modules have index=0
970 AliGeomManager::ELayerID layer = AliGeomManager::kInvalidLayer;
971 UShort_t dvoluid = AliGeomManager::LayerToVolUID(layer,index); //dummy vol id
972 TString symname(Form("TOF/sm%02d",iSM));
973 AliAlignObjMatrix* o = new AliAlignObjMatrix(symname.Data(),dvoluid,gdelta,kTRUE);
974 fTOFAlignObjArray->Add(o);
977 //_____________________________________________________________________________
978 void AliTOFAlignment::AlignFromSurveyACD(Int_t iSM)
980 //From Survey data, derive the needed transformations to get the
982 //Again, highly "inspired" to Raffaele's example...
986 Double_t ngA[3], ngC[3], ngD[3];// real FM point coord., global RS
988 // Get the 'realistic' input from the Survey Matrix
989 for(Int_t coord=0;coord<3;coord++){
990 ngA[coord]= fCombFMData[iSM*4][coord*2];
991 ngC[coord]= fCombFMData[iSM*4+2][coord*2];
992 ngD[coord]= fCombFMData[iSM*4+3][coord*2];
995 printf("\n\n******Survey analysis for TOF SuperModule ************** %i \n",iSM);
997 // From the new fiducial marks coordinates derive back the
998 // new global position of the surveyed volume
999 //*** What follows is the actual survey-to-alignment procedure
1001 Double_t cd[3], ad[3], n[3];
1002 Double_t plane[4], s=1.;
1004 // first vector on the plane of the fiducial marks
1005 for(Int_t i=0;i<3;i++){
1006 cd[i] = (ngC[i] - ngD[i]);
1009 // second vector on the plane of the fiducial marks
1010 for(Int_t i=0;i<3;i++){
1011 ad[i] = (ngD[i] - ngA[i]);
1014 // vector normal to the plane of the fiducial marks obtained
1015 // as cross product of the two vectors on the plane d0^d1
1016 n[0] = (ad[1] * cd[2] - ad[2] * cd[1]);
1017 n[1] = (ad[2] * cd[0] - ad[0] * cd[2]);
1018 n[2] = (ad[0] * cd[1] - ad[1] * cd[0]);
1020 Double_t sizen = TMath::Sqrt( n[0]*n[0] + n[1]*n[1] + n[2]*n[2] );
1022 s = Double_t(1.)/sizen ; //normalization factor
1024 AliInfo("Problem in normalizing the vector");
1027 // plane expressed in the hessian normal form, see:
1028 // http://mathworld.wolfram.com/HessianNormalForm.html
1029 // the first three are the coordinates of the orthonormal vector
1030 // the fourth coordinate is equal to the distance from the origin
1032 for(Int_t i=0;i<3;i++){
1033 plane[i] = n[i] * s;
1035 plane[3] = ( plane[0] * ngA[0] + plane[1] * ngA[1] + plane[2] * ngA[2] );
1037 // The center of the square with fiducial marks as corners
1038 // as the middle point of one diagonal - md
1039 // Used below to get the center - orig - of the surveyed box
1041 Double_t orig[3], md[3];
1042 for(Int_t i=0;i<3;i++){
1043 md[i] = (ngA[i] + ngC[i]) * 0.5;
1046 // The center of the box, gives the global translation
1047 for(Int_t i=0;i<3;i++){
1048 orig[i] = md[i] + plane[i]*fgkZFM;
1051 // get local directions needed to write the global rotation matrix
1052 // for the surveyed volume by normalising vectors ab and bc
1053 Double_t sx = TMath::Sqrt(ad[0]*ad[0] + ad[1]*ad[1] + ad[2]*ad[2]);
1055 for(Int_t i=0;i<3;i++){
1059 Double_t sy = TMath::Sqrt(cd[0]*cd[0] + cd[1]*cd[1] + cd[2]*cd[2]);
1061 for(Int_t i=0;i<3;i++){
1065 Double_t rot[9] = {cd[0],ad[0],-plane[0],cd[1],ad[1],-plane[1],cd[2],ad[2],-plane[2]};
1066 // the Aligned matrix for the current TOF SM in the Global RS, as derived from Survey:
1068 ng.SetTranslation(orig);
1069 ng.SetRotation(rot);
1070 printf("\n\n**** The Misaligned Matrix in GRS, as from Survey data ***\n");
1073 // Calculate the delta transformation wrt Ideal geometry
1074 // (Should be gdelta.rot ==I and gdelta.tr=0 if no misalignment is applied.)
1076 printf("\n\n**** The ideal matrix ***\n");
1077 fTOFMatrixId[iSM]->Print();
1079 TGeoHMatrix gdelta =fTOFMatrixId[iSM]->Inverse();
1080 printf("\n\n**** The inverse of the ideal matrix ***\n");
1083 gdelta.MultiplyLeft(&ng);
1084 printf("\n\n**** The Delta Matrix in GRS, as from Survey data ***\n");
1085 gdelta.Print(); //global delta trasformation
1087 // Now Write the Alignment Objects....
1088 Int_t index=0; //let all SM modules have index=0
1089 AliGeomManager::ELayerID layer = AliGeomManager::kInvalidLayer;
1090 UShort_t dvoluid = AliGeomManager::LayerToVolUID(layer,index); //dummy vol id
1091 TString symname(Form("TOF/sm%02d",iSM));
1092 AliAlignObjMatrix* o = new AliAlignObjMatrix(symname.Data(),dvoluid,gdelta,kTRUE);
1093 fTOFAlignObjArray->Add(o);
1096 //___________________________________________________________________________
1097 void AliTOFAlignment::AlignFromSurveyBCD(Int_t iSM)
1099 //From Survey data, derive the needed transformations to get the
1100 //Alignment Objects.
1101 //Again, highly "inspired" to Raffaele's example...
1104 Double_t ngB[3], ngC[3], ngD[3];// real FM point coord., global RS
1107 // Get the 'realistic' input from the Survey Matrix
1108 for(Int_t coord=0;coord<3;coord++){
1109 ngB[coord]= fCombFMData[iSM*4+1][coord*2];
1110 ngC[coord]= fCombFMData[iSM*4+2][coord*2];
1111 ngD[coord]= fCombFMData[iSM*4+3][coord*2];
1114 printf("\n\n******Survey analysis for TOF SuperModule ************** %i \n",iSM);
1116 // From the new fiducial marks coordinates derive back the
1117 // new global position of the surveyed volume
1118 //*** What follows is the actual survey-to-alignment procedure
1120 Double_t cd[3], bc[3], n[3];
1121 Double_t plane[4], s=1.;
1123 // first vector on the plane of the fiducial marks
1124 for(Int_t i=0;i<3;i++){
1125 cd[i] = (ngC[i] - ngD[i]);
1128 // second vector on the plane of the fiducial marks
1129 for(Int_t i=0;i<3;i++){
1130 bc[i] = (ngC[i] - ngB[i]);
1133 // vector normal to the plane of the fiducial marks obtained
1134 // as cross product of the two vectors on the plane d0^d1
1135 n[0] = (bc[1] * cd[2] - bc[2] * cd[1]);
1136 n[1] = (bc[2] * cd[0] - bc[0] * cd[2]);
1137 n[2] = (bc[0] * cd[1] - bc[1] * cd[0]);
1139 Double_t sizen = TMath::Sqrt( n[0]*n[0] + n[1]*n[1] + n[2]*n[2] );
1141 s = Double_t(1.)/sizen ; //normalization factor
1143 AliInfo("Problem in normalizing the vector");
1146 // plane expressed in the hessian normal form, see:
1147 // http://mathworld.wolfram.com/HessianNormalForm.html
1148 // the first three are the coordinates of the orthonormal vector
1149 // the fourth coordinate is equal to the distance from the origin
1151 for(Int_t i=0;i<3;i++){
1152 plane[i] = n[i] * s;
1154 plane[3] = ( plane[0] * ngB[0] + plane[1] * ngB[1] + plane[2] * ngB[2] );
1156 // The center of the square with fiducial marks as corners
1157 // as the middle point of one diagonal - md
1158 // Used below to get the center - orig - of the surveyed box
1160 Double_t orig[3], md[3];
1161 for(Int_t i=0;i<3;i++){
1162 md[i] = (ngB[i] + ngD[i]) * 0.5;
1165 // The center of the box, gives the global translation
1166 for(Int_t i=0;i<3;i++){
1167 orig[i] = md[i] + plane[i]*fgkZFM;
1170 // get local directions needed to write the global rotation matrix
1171 // for the surveyed volume by normalising vectors ab and bc
1172 Double_t sx = TMath::Sqrt(cd[0]*cd[0] + cd[1]*cd[1] + cd[2]*cd[2]);
1174 for(Int_t i=0;i<3;i++){
1178 Double_t sy = TMath::Sqrt(bc[0]*bc[0] + bc[1]*bc[1] + bc[2]*bc[2]);
1180 for(Int_t i=0;i<3;i++){
1184 Double_t rot[9] = {cd[0],bc[0],-plane[0],cd[1],bc[1],-plane[1],cd[2],bc[2],-plane[2]};
1185 // the Aligned matrix for the current TOF SM in the Global RS, as derived from Survey:
1187 ng.SetTranslation(orig);
1188 ng.SetRotation(rot);
1189 printf("\n\n**** The Misaligned Matrix in GRS, as from Survey data ***\n");
1192 // Calculate the delta transformation wrt Ideal geometry
1193 // (Should be gdelta.rot ==I and gdelta.tr=0 if no misalignment is applied.)
1195 printf("\n\n**** The ideal matrix ***\n");
1196 fTOFMatrixId[iSM]->Print();
1198 TGeoHMatrix gdelta =fTOFMatrixId[iSM]->Inverse();
1199 printf("\n\n**** The inverse of the ideal matrix ***\n");
1202 gdelta.MultiplyLeft(&ng);
1203 printf("\n\n**** The Delta Matrix in GRS, as from Survey data ***\n");
1204 gdelta.Print(); //global delta trasformation
1206 // Now Write the Alignment Objects....
1207 Int_t index=0; //let all SM modules have index=0
1208 AliGeomManager::ELayerID layer = AliGeomManager::kInvalidLayer;
1209 UShort_t dvoluid = AliGeomManager::LayerToVolUID(layer,index); //dummy vol id
1210 TString symname(Form("TOF/sm%02d",iSM));
1211 AliAlignObjMatrix* o = new AliAlignObjMatrix(symname.Data(),dvoluid,gdelta,kTRUE);
1212 fTOFAlignObjArray->Add(o);