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Enabling creation and reading of the CDB snapshot also in simulation
[u/mrichter/AliRoot.git] / TRD / AliTRDalignment.cxx
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8775e4e8 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/* $Id$ */
d15124a9 17///////////////////////////////////////////////////////////////////////////////
18// //
19// An AliTRDalignment object contains the alignment data (3 shifts and 3 //
20// tilts) for all the alignable volumes of the TRD, i.e. for 18 supermodules //
21// and 540 chambers. The class provides simple tools for reading and writing //
22// these data in different formats, and for generating fake data that can be //
23// used to simulate misalignment. //
24// The six alignment variables have the following meaning: //
25// shift in rphi //
26// shift in z //
27// shift in r //
28// tilt around rphi //
29// tilt around z //
30// tilt around r //
31// The shifts are in cm and the tilts are in degrees. //
32// The currently supported formats are: //
33// - ascii //
34// - root file containing a TClonesArray of alignment objects //
35// - offline conditions database //
36// - OCDB-like root file //
37// - geometry file (like misaligned_geometry.root) //
38// //
69219822 39// Some examples of usage (in an aliroot session): //
40// AliTRDalignment a,b,c,d,e; //
41// double xsm[]={0,0,0,-70,0,0}; //
42// double xch[]={0,0,-50,0,0,0}; //
43// a.SetSm(4,xsm); //
44// a.SetCh(120,xch); //
45// a.WriteAscii("kuku.dat"); //
46// TGeoManager::Import("geometry.root"); a.WriteRoot("kuku.root"); //
47// TGeoManager::Import("geometry.root"); a.WriteDB("kukudb.root",0,0); //
48// TGeoManager::Import("geometry.root"); //
162637e4 49// a.WriteDB("local://$ALICE_ROOT/OCDB", "TRD/Align/Data", 0,0); //
69219822 50// TGeoManager::Import("geometry.root"); a.WriteGeo("kukugeometry.root"); //
51// //
52// b.ReadAscii("kuku.dat"); //
53// TGeoManager::Import("geometry.root"); c.ReadRoot("kuku.root"); //
54// TGeoManager::Import("geometry.root"); d.ReadDB("kukudb.root"); //
55// TGeoManager::Import("kukugeometry.root"); e.ReadCurrentGeo(); //
56// //
57// e.PrintSm(4); //
58// e.PrintCh(120); //
59// a.PrintRMS(); //
60// b.PrintRMS(); //
61// e.PrintRMS(); //
62// //
63// //
d15124a9 64// D.Miskowiec, November 2006 //
65// //
66///////////////////////////////////////////////////////////////////////////////
67
68#include <iostream>
8775e4e8 69#include <fstream>
8775e4e8 70
71#include "TMath.h"
72#include "TFile.h"
73#include "TGeoManager.h"
74#include "TGeoPhysicalNode.h"
75#include "TClonesArray.h"
d15124a9 76#include "TString.h"
77#include "TFitter.h"
78#include "TMinuit.h"
8775e4e8 79
80#include "AliLog.h"
81#include "AliAlignObj.h"
90dbf5fb 82#include "AliAlignObjParams.h"
8775e4e8 83#include "AliCDBManager.h"
84#include "AliCDBStorage.h"
85#include "AliCDBMetaData.h"
86#include "AliCDBEntry.h"
afba1460 87#include "AliSurveyObj.h"
88#include "AliSurveyPoint.h"
8775e4e8 89
90#include "AliTRDalignment.h"
91
69219822 92void trdAlignmentFcn(Int_t &npar, Double_t *gin, Double_t &f, Double_t *x, Int_t iflag);
d15124a9 93
8775e4e8 94ClassImp(AliTRDalignment)
95
96//_____________________________________________________________________________
97AliTRDalignment::AliTRDalignment()
98 :TObject()
d15124a9 99 ,fComment()
8775e4e8 100 ,fRan(0)
101{
102 //
103 // constructor
104 //
105
106 SetZero();
107
d15124a9 108 for (int i=0; i<18; i++) for (int j=0; j<2; j++) for (int k=0; k<2; k++) for (int l=0; l<2; l++) {
109 fSurveyX[i][j][k][l] = 0.0;
110 fSurveyY[i][j][k][l] = 0.0;
111 fSurveyZ[i][j][k][l] = 0.0;
afba1460 112 fSurveyEX[i][j][k][l] = 0.0;
113 fSurveyEY[i][j][k][l] = 0.0;
114 fSurveyEZ[i][j][k][l] = 0.0;
d15124a9 115 }
116
117 // Initialize the nominal positions of the survey points
118 // in the local frame of supermodule (where y is the long side,
119 // z corresponds to the radius in lab, and x to the phi in lab).
120 // Four survey marks are on each z-side of the supermodule.
121 // A B
122 // ----o-----------o---- x |
123 // \ / |
124 // \ / |
125 // \ / |
126 // \ / |
127 // ---o-----o--- -------------->
128 // C D y
129 //
130 // For the purpose of this explanation lets define the origin such that
131 // the supermodule occupies 0 < x < 77.9 cm. Then the coordinates (x,y)
132 // are (in cm)
133 // A (76.2,-30.25)
134 // B (76.2,+30.25)
135 // C ( 2.2,-22.5 )
136 // D ( 2.2,+22.5 )
137 //
138
139 double x[2] = {22.5,30.25}; // lab phi, or tracking-y
140 double y[2] = {353.0, -353.0}; // lab z; inc. 2 cm survey target offset
141 double z[2] = {-(77.9/2.0-2.0),77.9/2.0-1.5}; // lab r, or better tracking-x
142
143 for (int j=0; j<2; j++) for (int k=0; k<2; k++) for (int l=0; l<2; l++) {
9ef36ec3 144 fSurveyX0[j][k][l] = -TMath::Power(-1,l) * x[k];
d15124a9 145 fSurveyY0[j][k][l] = y[j];
146 fSurveyZ0[j][k][l] = z[k];
147 }
148
2f9bdd85 149 for (int i=0; i<1000; i++) {
150 fIbuffer[i] = 0;
151 fDbuffer[i] = 0.0;
152 }
153
8775e4e8 154}
155
156//_____________________________________________________________________________
157AliTRDalignment::AliTRDalignment(const AliTRDalignment& source)
158 :TObject(source)
d15124a9 159 ,fComment(source.fComment)
160 ,fRan(source.fRan)
8775e4e8 161{
162 //
163 // copy constructor
164 //
165
d15124a9 166 for (int i=0; i<18; i++) SetSm(i,source.fSm[i]);
167 for (int i=0; i<540; i++) SetCh(i,source.fCh[i]);
168 for (int i=0; i<18; i++) for (int j=0; j<2; j++) for (int k=0; k<2; k++) for (int l=0; l<2; l++) {
169 fSurveyX[i][j][k][l] = source.fSurveyX[i][j][k][l];
170 fSurveyY[i][j][k][l] = source.fSurveyY[i][j][k][l];
171 fSurveyZ[i][j][k][l] = source.fSurveyZ[i][j][k][l];
afba1460 172 fSurveyEX[i][j][k][l] = source.fSurveyEX[i][j][k][l];
173 fSurveyEY[i][j][k][l] = source.fSurveyEY[i][j][k][l];
174 fSurveyEZ[i][j][k][l] = source.fSurveyEZ[i][j][k][l];
8775e4e8 175 }
d15124a9 176 for (int j=0; j<2; j++) for (int k=0; k<2; k++) for (int l=0; l<2; l++) {
177 fSurveyX0[j][k][l] = source.fSurveyX0[j][k][l];
178 fSurveyY0[j][k][l] = source.fSurveyY0[j][k][l];
179 fSurveyZ0[j][k][l] = source.fSurveyZ0[j][k][l];
8775e4e8 180 }
a987273c 181 for (int i=0; i<1000; i++) {
182 fIbuffer[i] = 0;
183 fDbuffer[i] = 0.0;
184 }
8775e4e8 185
186}
187
188//_____________________________________________________________________________
189AliTRDalignment& AliTRDalignment::operator=(const AliTRDalignment &source)
190{
191 //
192 // assignment operator
193 //
194
195 if (this != &source) {
196 for (int i = 0; i < 18; i++) SetSm(i,source.fSm[i]);
197 for (int i = 0; i < 540; i++) SetCh(i,source.fCh[i]);
d15124a9 198 for (int i=0; i<18; i++) for (int j=0; j<2; j++) for (int k=0; k<2; k++) for (int l=0; l<2; l++) {
199 fSurveyX[i][j][k][l] = source.fSurveyX[i][j][k][l];
200 fSurveyY[i][j][k][l] = source.fSurveyY[i][j][k][l];
201 fSurveyZ[i][j][k][l] = source.fSurveyZ[i][j][k][l];
afba1460 202 fSurveyEX[i][j][k][l] = source.fSurveyEX[i][j][k][l];
203 fSurveyEY[i][j][k][l] = source.fSurveyEY[i][j][k][l];
204 fSurveyEZ[i][j][k][l] = source.fSurveyEZ[i][j][k][l];
d15124a9 205 }
206 for (int j=0; j<2; j++) for (int k=0; k<2; k++) for (int l=0; l<2; l++) {
207 fSurveyX0[j][k][l] = source.fSurveyX0[j][k][l];
208 fSurveyY0[j][k][l] = source.fSurveyY0[j][k][l];
209 fSurveyZ0[j][k][l] = source.fSurveyZ0[j][k][l];
210 }
211 fComment = source.fComment;
8775e4e8 212 }
213
214 return *this;
215
216}
217
d15124a9 218//_____________________________________________________________________________
219AliTRDalignment& AliTRDalignment::operator*=(double fac)
220{
221 //
222 // multiplication operator
223 //
224
225 for (int i = 0; i < 18; i++) for (int j = 0; j < 6; j++) this->fSm[i][j] *= fac;
226 for (int i = 0; i < 540; i++) for (int j = 0; j < 6; j++) this->fCh[i][j] *= fac;
227
228 return *this;
229
230}
231
8775e4e8 232//_____________________________________________________________________________
233AliTRDalignment& AliTRDalignment::operator+=(const AliTRDalignment &source)
234{
235 //
236 // addition operator
237 //
238
d15124a9 239 for (int i = 0; i < 18; i++) for (int j = 0; j < 6; j++) this->fSm[i][j] += source.fSm[i][j];
240 for (int i = 0; i < 540; i++) for (int j = 0; j < 6; j++) this->fCh[i][j] += source.fCh[i][j];
8775e4e8 241
242 return *this;
243
244}
245
246//_____________________________________________________________________________
247AliTRDalignment& AliTRDalignment::operator-=(const AliTRDalignment &source)
248{
249 //
250 // subtraction operator
251 //
252
d15124a9 253 for (int i = 0; i < 18; i++) for (int j = 0; j < 6; j++) fSm[i][j] -= source.fSm[i][j];
254 for (int i = 0; i < 540; i++) for (int j = 0; j < 6; j++) fCh[i][j] -= source.fCh[i][j];
8775e4e8 255
256 return *this;
257
258}
259
260//_____________________________________________________________________________
261Bool_t AliTRDalignment::operator==(const AliTRDalignment &source) const
262{
263 //
264 // comparison operator
265 //
266
267 Bool_t areEqual = 1;
268
d15124a9 269 for (int i = 0; i < 18; i++) for (int j = 0; j < 6; j++) areEqual &= (fSm[i][j] == source.fSm[i][j]);
270 for (int i = 0; i < 540; i++) for (int j = 0; j < 6; j++) areEqual &= (fCh[i][j] == source.fCh[i][j]);
8775e4e8 271
272 return areEqual;
273
274}
275
276//_____________________________________________________________________________
277void AliTRDalignment::SetSmZero()
278{
279 //
280 // reset to zero supermodule data
281 //
282
283 memset(&fSm[0][0],0,sizeof(fSm));
284
285}
286
287//_____________________________________________________________________________
288void AliTRDalignment::SetChZero()
289{
290 //
291 // reset to zero chamber data
292 //
293
294 memset(&fCh[0][0],0,sizeof(fCh));
295
296}
297
298//_____________________________________________________________________________
d15124a9 299void AliTRDalignment::SetSmRandom(double a[6])
8775e4e8 300{
301 //
302 // generate random gaussian supermodule data with sigmas a
303 //
304
305 double x[6];
3415c35c 306 double xmax[6]={999, 0.6, 999, 999, 999, 999};
8775e4e8 307
d15124a9 308 for (int i = 0; i < 18; i++) {
3415c35c 309 for (int j = 0; j < 6; j++) {
310 do {x[j] = fRan.Gaus(0,a[j]);} while (TMath::Abs(x[j]) > xmax[j]);
311 }
8775e4e8 312 SetSm(i,x);
313 //PrintSm(i);
314 }
315
316}
317
318//_____________________________________________________________________________
d15124a9 319void AliTRDalignment::SetChRandom(double a[6])
8775e4e8 320{
321 //
322 // generate random gaussian chamber data with sigmas a
323 //
324
325 double x[6];
326
d15124a9 327 for (int i = 0; i < 540; i++) {
8775e4e8 328 fRan.Rannor(x[0],x[1]);
329 fRan.Rannor(x[2],x[3]);
330 fRan.Rannor(x[4],x[5]);
d15124a9 331 for (int j = 0; j < 6; j++) x[j] *= a[j];
8775e4e8 332 SetCh(i,x);
333 //PrintCh(i);
334 }
335
336}
337
338//_____________________________________________________________________________
339void AliTRDalignment::SetSmFull()
340{
341 //
342 // generate random gaussian supermodule data similar to the misalignment
343 // expected from the mechanical precision
344 //
345
d15124a9 346 double a[6];
8775e4e8 347
348 a[0] = 0.3; // phi
349 a[1] = 0.3; // z
350 a[2] = 0.3; // r
351 a[3] = 0.4/1000.0 / TMath::Pi()*180.0; // phi
352 a[4] = 2.0/1000.0 / TMath::Pi()*180.0; // z
353 a[5] = 0.4/1000.0 / TMath::Pi()*180.0; // r
354
355 SetSmRandom(a);
356
357}
358
359//_____________________________________________________________________________
360void AliTRDalignment::SetChFull()
361{
362 //
363 // generate random gaussian chamber data similar to the misalignment
364 // expected from the mechanical precision
365 //
366
d15124a9 367 double a[6];
8775e4e8 368
369 a[0] = 0.1; // phi
370 a[1] = 0.1; // z
371 a[2] = 0.1; // r
372 a[3] = 1.0/1000.0 / TMath::Pi()*180.0; // phi
373 a[4] = 1.0/1000.0 / TMath::Pi()*180.0; // z
374 a[5] = 0.7/1000.0 / TMath::Pi()*180.0; // r
375
376 SetChRandom(a);
377
378}
379
380//_____________________________________________________________________________
381void AliTRDalignment::SetSmResidual()
382{
383 //
384 // generate random gaussian supermodule data similar to the misalignment
385 // remaining after full calibration
386 // I assume that it will be negligible
387 //
388
389 SetSmZero();
390
391}
392
393//_____________________________________________________________________________
394void AliTRDalignment::SetChResidual()
395{
396 //
397 // generate random gaussian chamber data similar to the misalignment
398 // remaining after full calibration
399 //
400
d15124a9 401 double a[6];
8775e4e8 402
403 a[0] = 0.002; // phi
404 a[1] = 0.003; // z
405 a[2] = 0.007; // r
406 a[3] = 0.3/1000.0 / TMath::Pi()*180.0; // phi
407 a[4] = 0.3/1000.0 / TMath::Pi()*180.0; // z
408 a[5] = 0.1/1000.0 / TMath::Pi()*180.0; // r
409
410 SetChRandom(a);
411
412}
413
414//_____________________________________________________________________________
5626950c 415void AliTRDalignment::PrintSm(int i, FILE * const fp) const
8775e4e8 416{
417 //
418 // print the supermodule data
419 //
420
421 fprintf(fp,"%4d %11.4f %11.4f %11.4f %11.5f %11.5f %11.5f %6d %s\n"
422 ,i,fSm[i][0],fSm[i][1],fSm[i][2],fSm[i][3],fSm[i][4],fSm[i][5]
423 ,0,GetSmName(i));
424
425}
426
427//_____________________________________________________________________________
5626950c 428void AliTRDalignment::PrintCh(int i, FILE * const fp) const
8775e4e8 429{
430 //
431 // print the chamber data
432 //
433
434 fprintf(fp,"%4d %11.4f %11.4f %11.4f %11.5f %11.5f %11.5f %6d %s\n"
435 ,i,fCh[i][0],fCh[i][1],fCh[i][2],fCh[i][3],fCh[i][4],fCh[i][5]
436 ,GetVoi(i),GetChName(i));
437
438}
439
440//_____________________________________________________________________________
5626950c 441void AliTRDalignment::ReadAscii(const char * const filename)
8775e4e8 442{
443 //
444 // read the alignment data from ascii file
445 //
446
447 double x[6]; // alignment data
448 int volid; // volume id
449 std::string syna; // symbolic name
450 int j; // dummy index
451
452 fstream fi(filename,fstream::in);
453 if (!fi) {
d15124a9 454 AliError(Form("cannot open input file %s",filename));
455 return;
8775e4e8 456 }
457
458 // supermodules
459
460 for (int i = 0; i < 18; i++) {
461 fi>>j>>x[0]>>x[1]>>x[2]>>x[3]>>x[4]>>x[5]>>volid>>syna;
d15124a9 462 if (j != i) AliError(Form("sm %d expected, %d found",i,j));
463 if (volid != 0) AliError(Form("sm %d volume id %d expected, %d found",i,0,volid));
8775e4e8 464 std::string symnam = GetSmName(i);
d15124a9 465 if (syna != symnam) AliError(Form("sm %d name %s expected, %s found",i,symnam.data(),syna.data()));
8775e4e8 466 SetSm(i,x);
467 }
468
469 // chambers
470
471 for (int i = 0; i < 540; i++) {
472 fi>>j>>x[0]>>x[1]>>x[2]>>x[3]>>x[4]>>x[5]>>volid>>syna;
d15124a9 473 if (j != i) AliError(Form("ch %d expected, %d found",i,j));
474 if (volid != GetVoi(i)) AliError(Form("ch %d volume id %d expected, %d found",i,GetVoi(i),volid));
8775e4e8 475 std::string symnam = GetChName(i);
d15124a9 476 if (syna != symnam) AliError(Form("ch %d name %s expected, %s found",i,symnam.data(),syna.data()));
8775e4e8 477 SetCh(i,x);
478 }
479
480 fi.close();
481
482}
483
484//_____________________________________________________________________________
69219822 485void AliTRDalignment::ReadCurrentGeo()
8775e4e8 486{
487 //
69219822 488 // use currently loaded geometry to determine misalignment by comparing
489 // original and misaligned matrix of the last node
490 // Now, original, does not mean "ideal". It is the matrix before the alignment.
491 // So, if alignment was applied more than once, the numbers extracted will
492 // represent just the last alignment. -- check this!
8775e4e8 493 //
494
9c485614 495 TGeoPNEntry *pne;
8775e4e8 496 TGeoHMatrix *ideSm[18]; // ideal
8775e4e8 497 TGeoHMatrix *misSm[18]; // misaligned
b1e8dacb 498 for (int i = 0; i < 18; i++) if ((pne = gGeoManager->GetAlignableEntry(GetSmName(i)))) {
8775e4e8 499
69219822 500 // read misaligned and original matrices
8775e4e8 501
8775e4e8 502 TGeoPhysicalNode *node = pne->GetPhysicalNode();
69219822 503 if (!node) AliError(Form("physical node entry %s has no physical node",GetSmName(i)));
504 if (!node) continue;
8775e4e8 505 misSm[i] = new TGeoHMatrix(*node->GetNode(node->GetLevel())->GetMatrix());
506 ideSm[i] = new TGeoHMatrix(*node->GetOriginalMatrix());
8775e4e8 507
69219822 508 // calculate the local misalignment matrices as inverse misaligned times ideal
8775e4e8 509
8775e4e8 510 TGeoHMatrix mat(ideSm[i]->Inverse());
511 mat.Multiply(misSm[i]);
512 double *tra = mat.GetTranslation();
513 double *rot = mat.GetRotationMatrix();
514 double pars[6];
515 pars[0] = tra[0];
516 pars[1] = tra[1];
517 pars[2] = tra[2];
d15124a9 518 if (TMath::Abs(rot[0])<1e-7 || TMath::Abs(rot[8])<1e-7) AliError("Failed to extract roll-pitch-yall angles!");
8775e4e8 519 double raddeg = TMath::RadToDeg();
520 pars[3] = raddeg * TMath::ATan2(-rot[5],rot[8]);
521 pars[4] = raddeg * TMath::ASin(rot[2]);
522 pars[5] = raddeg * TMath::ATan2(-rot[1],rot[0]);
523 SetSm(i,pars);
69219822 524
525 // cleanup
526
527 delete ideSm[i];
528 delete misSm[i];
8775e4e8 529 }
530
69219822 531 TGeoHMatrix *ideCh[540]; // ideal
532 TGeoHMatrix *misCh[540]; // misaligned
b1e8dacb 533 for (int i = 0; i < 540; i++) if ((pne = gGeoManager->GetAlignableEntry(GetChName(i)))) {
69219822 534
535 // read misaligned and original matrices
536
69219822 537 TGeoPhysicalNode *node = pne->GetPhysicalNode();
538 if (!node) AliError(Form("physical node entry %s has no physical node",GetChName(i)));
539 if (!node) continue;
540 misCh[i] = new TGeoHMatrix(*node->GetNode(node->GetLevel())->GetMatrix());
541 ideCh[i] = new TGeoHMatrix(*node->GetOriginalMatrix());
542
543 // calculate the local misalignment matrices as inverse misaligned times ideal
544
8775e4e8 545 TGeoHMatrix mat(ideCh[i]->Inverse());
546 mat.Multiply(misCh[i]);
547 double *tra = mat.GetTranslation();
548 double *rot = mat.GetRotationMatrix();
549 double pars[6];
550 pars[0] = tra[0];
551 pars[1] = tra[1];
552 pars[2] = tra[2];
553 if(TMath::Abs(rot[0])<1e-7 || TMath::Abs(rot[8])<1e-7) {
554 AliError("Failed to extract roll-pitch-yall angles!");
555 return;
556 }
557 double raddeg = TMath::RadToDeg();
558 pars[3] = raddeg * TMath::ATan2(-rot[5],rot[8]);
559 pars[4] = raddeg * TMath::ASin(rot[2]);
560 pars[5] = raddeg * TMath::ATan2(-rot[1],rot[0]);
561 SetCh(i,pars);
69219822 562
563 // cleanup
564 delete ideCh[i];
565 delete misCh[i];
8775e4e8 566 }
567
69219822 568 return;
569
570}
571
572//_____________________________________________________________________________
5626950c 573void AliTRDalignment::ReadRoot(const char * const filename)
69219822 574{
575 //
576 // read the alignment data from root file
577 //
578
579 TFile fi(filename,"READ");
580
581 if (fi.IsOpen()) {
582 TClonesArray *ar = (TClonesArray*) fi.Get("TRDAlignObjs");
583 ArToNumbers(ar);
584 fi.Close();
585 }
586 else AliError(Form("cannot open input file %s",filename));
8775e4e8 587
588 return;
589
590}
591
69219822 592//_____________________________________________________________________________
5626950c 593void AliTRDalignment::ReadDB(const char * const filename)
69219822 594{
595 //
596 // read the alignment data from database file
597 //
598
599 TFile fi(filename,"READ");
600
601 if (fi.IsOpen()) {
602 AliCDBEntry *e = (AliCDBEntry *) fi.Get("AliCDBEntry");
603 e->PrintMetaData();
604 fComment.SetString(e->GetMetaData()->GetComment());
605 TClonesArray *ar = (TClonesArray *) e->GetObject();
606 ArToNumbers(ar);
607 fi.Close();
608 }
609 else AliError(Form("cannot open input file %s",filename));
610
611 return;
612
613}
614
615//_____________________________________________________________________________
5626950c 616void AliTRDalignment::ReadDB(const char * const db, const char * const path,
617 int run, int version, int subversion)
69219822 618{
619 //
620 // read the alignment data from database
621 //
622
623 AliCDBManager *cdb = AliCDBManager::Instance();
624 AliCDBStorage *storLoc = cdb->GetStorage(db);
625 AliCDBEntry *e = storLoc->Get(path,run,version,subversion);
626 if (e) {
627 e->PrintMetaData();
628 fComment.SetString(e->GetMetaData()->GetComment());
629 TClonesArray *ar = (TClonesArray *) e->GetObject();
630 ArToNumbers(ar);
631 }
632}
633
afba1460 634//_____________________________________________________________________________
635Bool_t AliTRDalignment::DecodeSurveyPointName(TString pna, Int_t &sm, Int_t &iz,
636 Int_t &ir, Int_t &iphi) {
637 // decode the survey point name and extract the sm, z, r and phi indices
638
639 if (pna(0,6)!="TRD_sm") {
640 AliError(Form("unexpected point name: %s",pna.Data()));
641 return kFALSE;
642 }
643 sm = atoi(pna(6,2).Data()); // supermodule number
644 iz = -1;
645 if (pna(8) == 'a') iz=0; // anticlockwise, positive z
646 if (pna(8) == 'c') iz=1; // clockwise, negative z
647 ir = -1;
648 if (pna(9) == 'l') ir=0; // low radius
649 if (pna(9) == 'h') ir=1; // high radius
3415c35c 650 iphi = -1;
651 if (pna(10) == '0') iphi = 0; // low phi within supermodule
652 if (pna(10) == '1') iphi = 1; // high phi within supermodule
afba1460 653 if (sm>=0 && sm<18 && iz>=0 && iz<2 && ir>=0 && ir<2 && iphi>=0 && iphi<2) return kTRUE;
654 AliError(Form("cannot decode point name: %s",pna.Data()));
655 return kFALSE;
656}
3415c35c 657
8775e4e8 658//_____________________________________________________________________________
5626950c 659void AliTRDalignment::ReadSurveyReport(const char * const filename)
8775e4e8 660{
d15124a9 661 //
662 // Read survey report and store the numbers in fSurveyX, fSurveyY, fSurveyZ,
663 // and fSurveyE. Store the survey info in the fComment.
664 // Each supermodule has 8 survey points. The point names look like
665 // TRD_sm08ah0 and have the following meaning.
666 //
667 // sm00..17 mean supermodule 0 through 17, following the phi.
668 // Supermodule 00 is between phi=0 and phi=20 degrees.
669 //
670 // a or c denotes the anticlockwise and clockwise end of the supermodule
671 // in z. Clockwise end is where z is negative and where the muon arm sits.
672 //
673 // l or h denote low radius and high radius holes
674 //
675 // 0 or 1 denote the hole at smaller and at larger phi, respectively.
676 //
8775e4e8 677
d15124a9 678 // read the survey file
679
680 fstream in(filename,fstream::in);
681 if (!in) {
682 AliError(Form("cannot open input file %s",filename));
683 return;
684 }
685
686 // loop through the lines of the file until the beginning of data
687
688 TString title,date,subdetector,url,version,observations,system,units;
689 while (1) {
690 char pee=in.peek();
691 if (pee==EOF) break;
692 TString line;
693 line.ReadLine(in);
694 if (line.Contains("Title:")) title.ReadLine(in);
695 if (line.Contains("Date:")) date.ReadLine(in);
696 if (line.Contains("Subdetector:")) subdetector.ReadLine(in);
697 if (line.Contains("URL:")) url.ReadLine(in);
698 if (line.Contains("Version:")) version.ReadLine(in);
699 if (line.Contains("Observations:")) observations.ReadLine(in);
700 if (line.Contains("System:")) system.ReadLine(in);
701 if (line.Contains("Units:")) units.ReadLine(in);
702 if (line.Contains("Data:")) break;
703 }
704
705 // check what we found so far (watch out, they have \r at the end)
706
707 std::cout<<"title .........."<<title<<std::endl;
708 std::cout<<"date ..........."<<date<<std::endl;
709 std::cout<<"subdetector ...."<<subdetector<<std::endl;
710 std::cout<<"url ............"<<url<<std::endl;
711 std::cout<<"version ........"<<version<<std::endl;
712 std::cout<<"observations ..."<<observations<<std::endl;
713 std::cout<<"system ........."<<system<<std::endl;
714 std::cout<<"units .........."<<units<<std::endl;
715
716 if (!subdetector.Contains("TRD")) {
717 AliWarning(Form("Not a TRD survey file, subdetector = %s",subdetector.Data()));
718 return;
719 }
720 double tocm = 0; // we want to have it in cm
721 if (units.Contains("mm")) tocm = 0.1;
722 else if (units.Contains("cm")) tocm = 1.0;
723 else if (units.Contains("m")) tocm = 100.0;
724 else if (units.Contains("pc")) tocm = 3.24078e-15;
725 else {
726 AliError(Form("unexpected units: %s",units.Data()));
727 return;
728 }
729 if (!system.Contains("ALICEPH")) {
730 AliError(Form("wrong system: %s, should be ALICEPH",system.Data()));
731 return;
8775e4e8 732 }
733
d15124a9 734 // scan the rest of the file which should contain list of surveyed points
735 // for every point, decode the point name and store the numbers in the right
736 // place in the arrays fSurveyX etc.
737
738 while (1) {
739 TString pna; // point name
afba1460 740 char type, target;
d15124a9 741 double x,y,z,precision;
afba1460 742
743 in >> pna >> x >> y >> z >> type >> target >> precision;
d15124a9 744 if (in.fail()) break;
afba1460 745 Int_t i,j,k,l;
746 if (DecodeSurveyPointName(pna,i,j,k,l)) {
d15124a9 747 fSurveyX[i][j][k][l] = tocm*x;
748 fSurveyY[i][j][k][l] = tocm*y;
749 fSurveyZ[i][j][k][l] = tocm*z;
afba1460 750 fSurveyEX[i][j][k][l] = precision/10; // "precision" is supposed to be in mm
751 fSurveyEY[i][j][k][l] = precision/10; // "precision" is supposed to be in mm
752 fSurveyEZ[i][j][k][l] = precision/10; // "precision" is supposed to be in mm
753 // if, at some point, separate precision numbers for x,y,z show up in the
754 // survey reports the function will fail here
3415c35c 755 printf("decoded %s %02d %d %d %d %8.2f %8.2f %8.2f %6.2f %6.2f %6.2f\n",
756 pna.Data(), i, j, k, l,
757 fSurveyX[i][j][k][l], fSurveyY[i][j][k][l], fSurveyZ[i][j][k][l],
758 fSurveyEX[i][j][k][l], fSurveyEY[i][j][k][l], fSurveyEZ[i][j][k][l]);
d15124a9 759 } else AliError(Form("cannot decode point name: %s",pna.Data()));
760 }
761 in.close();
762 TString info = "Survey "+title+" "+date+" "+url+" "+version+" "+observations;
763 info.ReplaceAll("\r","");
764 fComment.SetString(info.Data());
3415c35c 765
d15124a9 766}
767
afba1460 768//_____________________________________________________________________________
5626950c 769void AliTRDalignment::ReadSurveyReport(const AliSurveyObj * const so)
afba1460 770{
771 //
772 // Read survey report and store the numbers in fSurveyX, fSurveyY, fSurveyZ,
773 // and fSurveyE. Store the survey info in the fComment.
774 // Each supermodule has 8 survey points. The point names look like
775 // TRD_sm08ah0 and have the following meaning.
776 //
777 // sm00..17 mean supermodule 0 through 17, following the phi.
778 // Supermodule 00 is between phi=0 and phi=20 degrees.
779 //
780 // a or c denotes the anticlockwise and clockwise end of the supermodule
781 // in z. Clockwise end is where z is negative and where the muon arm sits.
782 //
783 // l or h denote low radius and high radius holes
784 //
785 // 0 or 1 denote the hole at smaller and at larger phi, respectively.
786 //
787
788 // read and process the data from the survey object
789
790 Int_t size = so->GetEntries();
791 printf("-> %d\n", size);
792
793 TString title = so->GetReportTitle();
794 TString date = so->GetReportDate();
795 TString subdetector = so->GetDetector();
796 TString url = so->GetURL();
797 TString report = so->GetReportNumber();
798 TString version = so->GetReportVersion();
799 TString observations = so->GetObservations();
800 TString system = so->GetCoordSys();
801 TString units = so->GetUnits();
802
803 // check what we found so far (watch out, they have \r at the end)
804
805 std::cout<<"title .........."<<title<<std::endl;
806 std::cout<<"date ..........."<<date<<std::endl;
807 std::cout<<"subdetector ...."<<subdetector<<std::endl;
808 std::cout<<"url ............"<<url<<std::endl;
809 std::cout<<"version ........"<<version<<std::endl;
810 std::cout<<"observations ..."<<observations<<std::endl;
811 std::cout<<"system ........."<<system<<std::endl;
812 std::cout<<"units .........."<<units<<std::endl;
813
814 if (!subdetector.Contains("TRD")) {
815 AliWarning(Form("Not a TRD survey file, subdetector = %s",subdetector.Data()));
816 return;
817 }
818 double tocm = 0; // we want to have it in cm
819 if (units.Contains("mm")) tocm = 0.1;
820 else if (units.Contains("cm")) tocm = 1.0;
821 else if (units.Contains("m")) tocm = 100.0;
822 else if (units.Contains("pc")) tocm = 3.24078e-15;
823 else {
824 AliError(Form("unexpected units: %s",units.Data()));
825 return;
826 }
827 if (!system.Contains("ALICEPH")) {
828 AliError(Form("wrong system: %s, should be ALICEPH",system.Data()));
829 return;
830 }
831
832 // for every survey point, decode the point name and store the numbers in
833 // the right place in the arrays fSurveyX etc.
834
835 TObjArray *points = so->GetData();
7bce990c 836 for (int ip = 0; ip<points->GetEntries(); ++ip) {
837 AliSurveyPoint *po = (AliSurveyPoint *) points->At(ip);
afba1460 838 TString pna = po->GetPointName();
839 Int_t i,j,k,l;
840 if (DecodeSurveyPointName(pna,i,j,k,l)) {
841 fSurveyX[i][j][k][l] = tocm*po->GetX();
842 fSurveyY[i][j][k][l] = tocm*po->GetY();
843 fSurveyZ[i][j][k][l] = tocm*po->GetZ();
844 fSurveyEX[i][j][k][l] = po->GetPrecisionX()/10; // "precision" is supposed to be in mm
845 fSurveyEY[i][j][k][l] = po->GetPrecisionY()/10;
846 fSurveyEZ[i][j][k][l] = po->GetPrecisionZ()/10;
3415c35c 847 printf("decoded %s %02d %d %d %d %8.2f %8.2f %8.2f %6.2f %6.2f %6.2f\n",
848 pna.Data(), i, j, k, l,
849 fSurveyX[i][j][k][l], fSurveyY[i][j][k][l], fSurveyZ[i][j][k][l],
850 fSurveyEX[i][j][k][l], fSurveyEY[i][j][k][l], fSurveyEZ[i][j][k][l]);
afba1460 851 } else AliError(Form("cannot decode point name: %s",pna.Data()));
852 }
853
854 TString info = "Survey "+title+" "+date+" "+url+" "+report+" "+version+" "+observations;
855 info.ReplaceAll("\r","");
856 fComment.SetString(info.Data());
857}
858
d15124a9 859//_____________________________________________________________________________
5626950c 860double AliTRDalignment::SurveyChi2(int i, const double * const a) {
d15124a9 861
862 //
863 // Compare the survey results to the ideal positions of the survey marks
864 // in the local frame of supermodule. When transforming, use the alignment
865 // parameters a[6]. Return chi-squared.
866 //
867
69219822 868 if (!IsGeoLoaded()) return 0;
d15124a9 869 printf("Survey of supermodule %d\n",i);
90dbf5fb 870 AliAlignObjParams al(GetSmName(i),0,a[0],a[1],a[2],a[3],a[4],a[5],0);
fef4997a 871
d15124a9 872 TGeoPNEntry *pne = gGeoManager->GetAlignableEntry(GetSmName(i));
873 if (!pne) AliError(Form("no such physical node entry: %s",GetSmName(i)));
874 TGeoPhysicalNode *node = pne->GetPhysicalNode();
fef4997a 875 if (!node) {
876 AliWarning(Form("physical node entry %s has no physical node; making a new one",GetSmName(i)));
877 node = gGeoManager->MakeAlignablePN(pne);
878 }
d15124a9 879
880 // al.ApplyToGeometry();
881 // node = pne->GetPhysicalNode(); // changed in the meantime
882 // TGeoHMatrix *ma = node->GetMatrix();
883
884 // a less destructive method (it does not modify geometry), gives the same result:
885
886 TGeoHMatrix *ma = new TGeoHMatrix();
887 al.GetLocalMatrix(*ma);
888 ma->MultiplyLeft(node->GetMatrix()); // global trafo, modified by a[]
889
890 double chi2=0;
891 printf(" sm z r phi x (lab phi) y (lab z) z (lab r) all in cm\n");
892 for (int j=0; j<2; j++) for (int k=0; k<2; k++) for (int l=0; l<2; l++) {
afba1460 893 if (fSurveyEX[i][j][k][l] == 0.0
894 && fSurveyEY[i][j][k][l] == 0.0
895 && fSurveyEZ[i][j][k][l] == 0.0) continue; // no data for this survey point
d15124a9 896 double master[3] = {fSurveyX[i][j][k][l],fSurveyY[i][j][k][l],fSurveyZ[i][j][k][l]};
897 double local[3];
898 ma->MasterToLocal(master,local);
899 double dx = local[0]-fSurveyX0[j][k][l];
900 double dy = local[1]-fSurveyY0[j][k][l];
901 double dz = local[2]-fSurveyZ0[j][k][l];
afba1460 902 chi2 += dx*dx/fSurveyEX[i][j][k][l]/fSurveyEX[i][j][k][l];
903 chi2 += dy*dy/fSurveyEY[i][j][k][l]/fSurveyEY[i][j][k][l];
904 chi2 += dz*dz/fSurveyEZ[i][j][k][l]/fSurveyEZ[i][j][k][l];
d15124a9 905 printf("local survey %3d %3d %3d %3d %12.3f %12.3f %12.3f\n",i,j,k,l,local[0],local[1],local[2]);
906 printf("local ideal %12.3f %12.3f %12.3f\n",fSurveyX0[j][k][l],
907 fSurveyY0[j][k][l],fSurveyZ0[j][k][l]);
908 printf("difference %12.3f %12.3f %12.3f\n",dx,dy,dz);
909 }
910 printf("chi2 = %.2f\n",chi2);
911 return chi2;
912}
913
914//_____________________________________________________________________________
69219822 915void trdAlignmentFcn(int &npar, double *g, double &f, double *par, int iflag) {
d15124a9 916
917 //
918 // Standard function as needed by Minuit-like minimization procedures.
919 // For the set of parameters par calculates and returns chi-squared.
920 //
921
922 // smuggle a C++ object into a C function
923 AliTRDalignment *alignment = (AliTRDalignment*) gMinuit->GetObjectFit();
924
925 f = alignment->SurveyChi2(par);
4f57cad7 926 if (iflag==3) {}
927 if (npar) {}
928 if (g) {} // no warnings about unused stuff...
d15124a9 929
930}
931
932//_____________________________________________________________________________
5626950c 933void AliTRDalignment::SurveyToAlignment(int i, const char * const flag) {
d15124a9 934
935 //
936 // Find the supermodule alignment parameters needed to make the survey
937 // results coincide with the ideal positions of the survey marks.
938 // The string flag should look like "101000"; the six characters corresponds
939 // to the six alignment parameters and 0/1 mean that the parameter should
940 // be fixed/released in the fit.
941
942 if (strlen(flag)!=6) {
943 AliError(Form("unexpected flag: %s",flag));
944 return;
945 }
946
947 printf("Finding alignment matrix for supermodule %d\n",i);
948 fIbuffer[0] = i; // store the sm number in the buffer so minuit can see it
949
950 TFitter fitter(100);
951 gMinuit->SetObjectFit(this);
69219822 952 fitter.SetFCN(trdAlignmentFcn);
d15124a9 953 fitter.SetParameter(0,"dx",0,0.5,0,0);
954 fitter.SetParameter(1,"dy",0,0.5,0,0);
955 fitter.SetParameter(2,"dz",0,0.5,0,0);
956 fitter.SetParameter(3,"rx",0,0.1,0,0);
957 fitter.SetParameter(4,"ry",0,0.1,0,0);
958 fitter.SetParameter(5,"rz",0,0.1,0,0);
959
960 for (int j=0; j<6; j++) if (flag[j]=='0') fitter.FixParameter(j);
961
962 double arglist[100];
963 arglist[0] = 2;
964 fitter.ExecuteCommand("SET PRINT", arglist, 1);
965 fitter.ExecuteCommand("SET ERR", arglist, 1);
966 arglist[0]=50;
967 //fitter.ExecuteCommand("SIMPLEX", arglist, 1);
968 fitter.ExecuteCommand("MINIMIZE", arglist, 1);
969 fitter.ExecuteCommand("CALL 3", arglist,0);
970 double a[6];
971 for (int j=0; j<6; j++) a[j] = fitter.GetParameter(j);
972 SetSm(i,a);
973 for (int j=0; j<6; j++) printf("%10.3f ",fitter.GetParameter(j));
974 printf("\n");
975 for (int j=0; j<6; j++) printf("%10.3f ",fitter.GetParError(j));
976 printf("\n");
8775e4e8 977
978}
979
980//_____________________________________________________________________________
5626950c 981void AliTRDalignment::ReadAny(const char * const filename)
8775e4e8 982{
983 //
984 // read the alignment data from any kind of file
985 //
986
987 TString fist(filename);
d15124a9 988 if (fist.EndsWith(".txt")) ReadAscii(filename);
989 if (fist.EndsWith(".dat")) ReadAscii(filename);
8775e4e8 990 if (fist.EndsWith(".root")) {
d15124a9 991 if (fist.Contains("Run")) ReadDB(filename);
992 else ReadRoot(filename);
8775e4e8 993 }
994
995}
996
997//_____________________________________________________________________________
5626950c 998void AliTRDalignment::WriteAscii(const char * const filename) const
8775e4e8 999{
1000 //
1001 // store the alignment data on ascii file
1002 //
1003
1004 FILE *fp = fopen(filename, "w");
1005 if (!fp) {
1006 AliError(Form("cannot open output file %s",filename));
1007 return;
1008 }
1009
1010 PrintSm(fp);
1011 PrintCh(fp);
1012
1013 fclose(fp);
1014
1015}
1016
1017//_____________________________________________________________________________
5626950c 1018void AliTRDalignment::WriteRoot(const char * const filename)
8775e4e8 1019{
1020 //
1021 // store the alignment data on root file
1022 //
1023
90dbf5fb 1024 TClonesArray *ar = new TClonesArray("AliAlignObjParams",10000);
8775e4e8 1025 NumbersToAr(ar);
1026 TFile fo(filename,"RECREATE");
1027 if (fo.IsOpen()) {
1028 fo.cd();
1029 fo.WriteObject(ar,"TRDAlignObjs","kSingleKey");
1030 fo.Close();
1031 }
d15124a9 1032 else AliError(Form("cannot open output file %s",filename));
8775e4e8 1033
1034 delete ar;
1035
1036}
1037
1038//_____________________________________________________________________________
c238ac9a 1039void AliTRDalignment::WriteDB(const char * const filename, int run0, int run1, int ver, int subver)
8775e4e8 1040{
1041 //
1042 // dumping on a DB-like file
1043 //
1044
90dbf5fb 1045 TClonesArray *ar = new TClonesArray("AliAlignObjParams",10000);
8775e4e8 1046 NumbersToAr(ar);
a6e0ebfe 1047 const Char_t *path = "TRD/Align/Data";
8775e4e8 1048 AliCDBId id(path,run0,run1);
1049 AliCDBMetaData *md = new AliCDBMetaData();
1050 md->SetResponsible("Dariusz Miskowiec");
d15124a9 1051 md->SetComment(fComment.GetString().Data());
c238ac9a 1052 AliCDBEntry *e = new AliCDBEntry(ar, id, md);
1053 e->SetVersion(ver);
1054 e->SetSubVersion(subver);
8775e4e8 1055 TFile fi(filename,"RECREATE");
1056 if (fi.IsOpen()) {
1057 e->Write();
1058 fi.Close();
1059 }
d15124a9 1060 else AliError(Form("cannot open input file %s",filename));
8775e4e8 1061
1062 delete e;
1063 delete md;
1064 delete ar;
1065
1066 return;
1067
1068}
1069
1070//_____________________________________________________________________________
5626950c 1071void AliTRDalignment::WriteDB(char * const db, const char * const path, int run0, int run1)
8775e4e8 1072{
1073 //
1074 // store the alignment data in database
1075 //
1076
90dbf5fb 1077 TClonesArray *ar = new TClonesArray("AliAlignObjParams",10000);
8775e4e8 1078 NumbersToAr(ar);
1079 AliCDBManager *cdb = AliCDBManager::Instance();
1080 AliCDBStorage *storLoc = cdb->GetStorage(db);
1081 AliCDBMetaData *md = new AliCDBMetaData();
1082 md->SetResponsible("Dariusz Miskowiec");
d15124a9 1083 md->SetComment(fComment.GetString().Data());
8775e4e8 1084 AliCDBId id(path,run0,run1);
1085 storLoc->Put(ar,id,md);
1086 md->Delete();
1087 delete ar;
1088
1089}
1090
1091//_____________________________________________________________________________
1092void AliTRDalignment::WriteGeo(char *filename)
1093{
1094 //
69219822 1095 // apply misalignment to current geometry and store the
8775e4e8 1096 // resulting geometry on a root file
1097 //
1098
90dbf5fb 1099 TClonesArray *ar = new TClonesArray("AliAlignObjParams",10000);
8775e4e8 1100 NumbersToAr(ar);
8775e4e8 1101 delete ar;
1102 gGeoManager->Export(filename);
1103
1104}
1105
1106//_____________________________________________________________________________
d15124a9 1107double AliTRDalignment::GetSmRMS(int xyz) const
8775e4e8 1108{
1109 //
1110 // rms fSm[][xyz]
1111 //
1112
d15124a9 1113 double s1 = 0.0;
1114 double s2 = 0.0;
8775e4e8 1115 for (int i = 0; i < 18; i++) {
1116 s1 += fSm[i][xyz];
1117 s2 += fSm[i][xyz]*fSm[i][xyz];
1118 }
d15124a9 1119 double rms2 = s2/18.0 - s1*s1/18.0/18.0;
8775e4e8 1120
1121 return rms2>0 ? sqrt(rms2) : 0.0;
1122
1123}
1124
1125//_____________________________________________________________________________
d15124a9 1126double AliTRDalignment::GetChRMS(int xyz) const
8775e4e8 1127{
1128 //
1129 // rms fCh[][xyz]
1130 //
1131
d15124a9 1132 double s1 =0.0;
1133 double s2 =0.0;
8775e4e8 1134 for (int i = 0; i < 540; i++) {
1135 s1 += fCh[i][xyz];
1136 s2 += fCh[i][xyz]*fCh[i][xyz];
1137 }
d15124a9 1138 double rms2 = s2/540.0 - s1*s1/540.0/540.0;
8775e4e8 1139
1140 return rms2>0 ? sqrt(rms2) : 0.0;
1141
1142}
1143
1144//_____________________________________________________________________________
1145void AliTRDalignment::PrintSmRMS() const
1146{
1147 //
1148 // dump rms of fSm
1149 //
1150
1151 printf(" %11.4f %11.4f %11.4f %11.5f %11.5f %11.5f supermodule rms\n"
1152 ,GetSmRMS(0),GetSmRMS(1),GetSmRMS(2),GetSmRMS(3),GetSmRMS(4),GetSmRMS(5));
1153
1154}
1155
1156//_____________________________________________________________________________
1157void AliTRDalignment::PrintChRMS() const
1158{
1159 //
1160 // dump rms of fCh
1161 //
1162
1163 printf(" %11.4f %11.4f %11.4f %11.5f %11.5f %11.5f chamber rms\n"
1164 ,GetChRMS(0),GetChRMS(1),GetChRMS(2),GetChRMS(3),GetChRMS(4),GetChRMS(5));
1165
1166}
1167
1168//_____________________________________________________________________________
5626950c 1169void AliTRDalignment::ArToNumbers(TClonesArray * const ar)
8775e4e8 1170{
1171 //
69219822 1172 // for each of the alignment objects in array ar extract the six local
1173 // alignment parameters; recognize by name to which supermodule or chamber
1174 // the alignment object pertains; set the respective fSm or fCh
8775e4e8 1175 //
1176
69219822 1177 ar->Sort();
1178 if (!IsGeoLoaded()) return;
1179 for (int i = 0; i < ar->GetEntries(); i++) {
8775e4e8 1180 AliAlignObj *aao = (AliAlignObj *) ar->At(i);
69219822 1181 aao->ApplyToGeometry();
8775e4e8 1182 }
69219822 1183 SetZero();
1184 ReadCurrentGeo();
8775e4e8 1185
1186}
1187
1188//_____________________________________________________________________________
5626950c 1189void AliTRDalignment::NumbersToAr(TClonesArray * const ar)
8775e4e8 1190{
1191 //
1192 // build array of AliAlignObj objects based on fSm and fCh data
69219822 1193 // at the same time, apply misalignment to the currently loaded geometry
1194 // it is important to apply misalignment of supermodules before creating
1195 // alignment objects for chambers
8775e4e8 1196 //
1197
69219822 1198 if (!IsGeoLoaded()) return;
8775e4e8 1199 TClonesArray &alobj = *ar;
1200 int nobj = 0;
1201 for (int i = 0; i < 18; i++) {
90dbf5fb 1202 new(alobj[nobj]) AliAlignObjParams(GetSmName(i)
8775e4e8 1203 ,0
1204 ,fSm[i][0],fSm[i][1],fSm[i][2]
1205 ,fSm[i][3],fSm[i][4],fSm[i][5]
1206 ,0);
69219822 1207 ((AliAlignObj *) alobj[nobj])->ApplyToGeometry();
8775e4e8 1208 nobj++;
1209 }
1210
1211 for (int i = 0; i < 540; i++) {
9c485614 1212 if (gGeoManager->GetAlignableEntry(GetChName(i))) {
1213 new(alobj[nobj]) AliAlignObjParams(GetChName(i)
1214 ,GetVoi(i)
1215 ,fCh[i][0],fCh[i][1],fCh[i][2]
1216 ,fCh[i][3],fCh[i][4],fCh[i][5]
1217 ,0);
1218 ((AliAlignObj *) alobj[nobj])->ApplyToGeometry();
1219 nobj++;
1220 }
8775e4e8 1221 }
69219822 1222 AliInfo("current geometry modified");
8775e4e8 1223
1224}
1225
1226//_____________________________________________________________________________
69219822 1227int AliTRDalignment::IsGeoLoaded()
8775e4e8 1228{
1229 //
69219822 1230 // check whether a geometry is loaded
1231 // issue a warning if geometry is not ideal
8775e4e8 1232 //
1233
69219822 1234 if (gGeoManager) {
1235 if (gGeoManager->GetListOfPhysicalNodes()->GetEntries()) AliWarning("current geometry is not ideal");
1236 return 1;
1237 } else {
1238 AliError("first load geometry by calling TGeoManager::Import(filename)");
1239 return 0;
8775e4e8 1240 }
1241
8775e4e8 1242}
69219822 1243
1244//_____________________________________________________________________________