1 /**************************************************************************
\r
2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
\r
4 * Author: The ALICE Off-line Project. *
\r
5 * Contributors are mentioned in the code where appropriate. *
\r
7 * Permission to use, copy, modify and distribute this software and its *
\r
8 * documentation strictly for non-commercial purposes is hereby granted *
\r
9 * without fee, provided that the above copyright notice appears in all *
\r
10 * copies and that both the copyright notice and this permission notice *
\r
11 * appear in the supporting documentation. The authors make no claims *
\r
12 * about the suitability of this software for any purpose. It is *
\r
13 * provided "as is" without express or implied warranty. *
\r
14 **************************************************************************/
\r
18 //-----------------------------------------------------------------------------
\r
20 // Interface to AliMillePede2 alignment class for the ALICE ITS detector
\r
22 // ITS specific alignment class which interface to AliMillepede.
\r
23 // For each track ProcessTrack calculates the local and global derivatives
\r
24 // at each hit and fill the corresponding local equations. Provide methods for
\r
25 // fixing or constraining detection elements for best results.
\r
27 // author M. Lunardon (thanks to J. Castillo), ruben.shahoyan@cern.ch
\r
28 //-----------------------------------------------------------------------------
\r
31 #include <TClonesArray.h>
\r
33 #include <TVirtualFitter.h>
\r
34 #include <TGeoManager.h>
\r
35 #include <TArrayI.h>
\r
36 #include <TSystem.h>
\r
37 #include "AliITSAlignMille2.h"
\r
38 #include "AliITSgeomTGeo.h"
\r
39 #include "AliGeomManager.h"
\r
40 #include "AliMillePede2.h"
\r
41 #include "AliTrackPointArray.h"
\r
42 #include "AliAlignObjParams.h"
\r
44 #include "AliTrackFitterRieman.h"
\r
45 #include "AliITSAlignMille2Constraint.h"
\r
46 #include "AliITSAlignMille2ConstrArray.h"
\r
47 #include "AliITSresponseSDD.h"
\r
49 ClassImp(AliITSAlignMille2)
\r
51 const Char_t* AliITSAlignMille2::kRecKeys[] = {
\r
54 "CONSTRAINTS_REFERENCE_FILE",
\r
55 "PREALIGNMENT_FILE",
\r
58 "SET_GLOBAL_DELTAS",
\r
62 "SET_PSEUDO_PARENTS",
\r
63 "SET_TRACK_FIT_METHOD",
\r
68 "SET_LOCALSIGMAFACTOR",
\r
71 "SET_SPARSE_MATRIX",
\r
73 "CONSTRAINT_ORPHANS",
\r
74 "CONSTRAINT_SUBUNITS",
\r
79 //========================================================================================================
\r
81 AliITSAlignMille2* AliITSAlignMille2::fgInstance = 0;
\r
82 Int_t AliITSAlignMille2::fgInstanceID = 0;
\r
84 //________________________________________________________________________________________________________
\r
85 AliITSAlignMille2::AliITSAlignMille2(const Char_t *configFilename )
\r
89 fResCutInitial(100.),
\r
94 fIsMilleInit(kFALSE),
\r
95 fAllowPseudoParents(kFALSE),
\r
101 fGlobalDerivatives(0),
\r
103 fMinNPtsPerTrack(3),
\r
104 fInitTrackParamsMeth(1),
\r
105 fTotBadLocEqPoints(0),
\r
110 fUseGlobalDelta(kFALSE),
\r
111 fRequirePoints(kFALSE),
\r
112 fTempExcludedModule(-1),
\r
114 fGeometryFileName("geometry.root"),
\r
115 fPreAlignmentFileName(""),
\r
116 fConstrRefFileName(""),
\r
118 fIsConfigured(kFALSE),
\r
129 fUsePreAlignment(kFALSE),
\r
135 /// main constructor that takes input from configuration file
\r
136 for (int i=3;i--;) fSigmaFactor[i] = 1.0;
\r
139 for (Int_t i=0; i<6; i++) {
\r
144 for (Int_t i=0; i<3; i++) {
\r
150 Int_t lc=LoadConfig(configFilename);
\r
152 AliError(Form("Error %d loading configuration from %s",lc,configFilename));
\r
156 fMillepede = new AliMillePede2();
\r
162 //________________________________________________________________________________________________________
\r
163 AliITSAlignMille2::~AliITSAlignMille2()
\r
166 if (fMillepede) delete fMillepede; fMillepede = 0;
\r
167 if (fGlobalDerivatives) delete[] fGlobalDerivatives; fGlobalDerivatives = 0;
\r
168 if (fRieman) delete fRieman; fRieman = 0;
\r
169 if (fPrealignment) delete fPrealignment; fPrealignment = 0;
\r
170 if (fConstrRef) delete fConstrRef; fConstrRef = 0;
\r
171 if (fCorrectSDD) delete fCorrectSDD; fCorrectSDD = 0;
\r
172 if (fInitialRecSDD) delete fInitialRecSDD; fInitialRecSDD = 0;
\r
173 fTrackBuff.Delete();
\r
174 fConstraints.Delete();
\r
175 fMilleModule.Delete();
\r
176 fSuperModule.Delete();
\r
177 if (--fgInstanceID==0) fgInstance = 0;
\r
180 ///////////////////////////////////////////////////////////////////////
\r
183 TObjArray* AliITSAlignMille2::GetConfigRecord(FILE* stream, TString& recTitle, TString& recOpt, Bool_t rew)
\r
185 // read new record from config file
\r
187 static TObjArray* recElems = 0;
\r
188 if (recElems) {delete recElems; recElems = 0;}
\r
190 TString keyws = recTitle;
\r
191 if (!keyws.IsNull()) {
\r
195 while (record.Gets(stream)) {
\r
196 int cmt=record.Index("#");
\r
197 if (cmt>=0) record.Remove(cmt); // skip comment
\r
198 record.ReplaceAll("\t"," ");
\r
199 record.ReplaceAll("\r"," ");
\r
200 record.Remove(TString::kBoth,' ');
\r
201 if (record.IsNull()) continue; // nothing to decode
\r
202 if (!keyws.IsNull() && !record.BeginsWith(keyws.Data())) continue; // specific record was requested
\r
204 recElems = record.Tokenize(" ");
\r
205 recTitle = recElems->At(0)->GetName();
\r
206 recTitle.ToUpper();
\r
207 recOpt = recElems->GetLast()>0 ? recElems->At(1)->GetName() : "";
\r
210 if (rew || !recElems) rewind(stream);
\r
214 //________________________________________________________________________________________________________
\r
215 Int_t AliITSAlignMille2::CheckConfigRecords(FILE* stream)
\r
217 TString record,recTitle;
\r
220 while (record.Gets(stream)) {
\r
221 int cmt=record.Index("#");
\r
223 if (cmt>=0) record.Remove(cmt); // skip comment
\r
224 record.ReplaceAll("\t"," ");
\r
225 record.ReplaceAll("\r"," ");
\r
226 record.Remove(TString::kBoth,' ');
\r
227 if (record.IsNull()) continue; // nothing to decode
\r
229 int spc = record.Index(" ");
\r
230 if (spc>0) recTitle = record(0,spc);
\r
231 else recTitle = record;
\r
232 recTitle.ToUpper();
\r
233 Bool_t strOK = kFALSE;
\r
234 for (int ik=kNKeyWords;ik--;) if (recTitle == kRecKeys[ik]) {strOK = kTRUE; break;}
\r
235 if (strOK) continue;
\r
237 AliError(Form("Unknown keyword %s at line %d",
\r
238 recTitle.Data(),lineCnt));
\r
248 //________________________________________________________________________________________________________
\r
249 Int_t AliITSAlignMille2::LoadConfig(const Char_t *cfile)
\r
251 // return 0 if success
\r
252 // 1 if error in module index or voluid
\r
254 FILE *pfc=fopen(cfile,"r");
\r
255 if (!pfc) return -1;
\r
257 TString record,recTitle,recOpt,recExt;
\r
258 Int_t nrecElems,irec;
\r
259 TObjArray *recArr=0;
\r
262 Bool_t stopped = kFALSE;
\r
264 if (CheckConfigRecords(pfc)<0) return -1;
\r
268 // ============= 1: we read some obligatory records in predefined order ================
\r
270 recTitle = kRecKeys[kGeomFile];
\r
271 if ( !GetConfigRecord(pfc,recTitle,recOpt,1) ||
\r
272 (fGeometryFileName=recOpt).IsNull() ||
\r
273 gSystem->AccessPathName(recOpt.Data()) ||
\r
275 { AliError("Failed to find/load Geometry"); stopped = kTRUE; break;}
\r
277 recTitle = kRecKeys[kSuperModileFile];
\r
278 if ( !GetConfigRecord(pfc,recTitle,recOpt,1) ||
\r
279 recOpt.IsNull() ||
\r
280 gSystem->AccessPathName(recOpt.Data()) ||
\r
281 LoadSuperModuleFile(recOpt.Data()))
\r
282 { AliError("Failed to find/load SuperModules"); stopped = kTRUE; break;}
\r
284 recTitle = kRecKeys[kConstrRefFile]; // LOCAL_CONSTRAINTS are defined wrt these deltas
\r
285 if ( GetConfigRecord(pfc,recTitle,recOpt,1) ) {
\r
286 if (recOpt.IsNull() || recOpt=="IDEAL") SetConstraintWrtRef( "IDEAL" );
\r
287 else if (gSystem->AccessPathName(recOpt.Data()) || SetConstraintWrtRef(recOpt.Data()) )
\r
288 { AliError("Failed to load reference deltas for local constraints"); stopped = kTRUE; break;}
\r
291 recTitle = kRecKeys[kPrealignFile];
\r
292 if ( GetConfigRecord(pfc,recTitle,recOpt,1) )
\r
293 if ( (fPreAlignmentFileName=recOpt).IsNull() ||
\r
294 gSystem->AccessPathName(recOpt.Data()) ||
\r
295 ApplyToGeometry())
\r
296 { AliError(Form("Failed to load Prealignment file %s",recOpt.Data())); stopped = kTRUE; break;}
\r
298 recTitle = kRecKeys[kPreCalSDDFile];
\r
299 if ( GetConfigRecord(pfc,recTitle,recOpt,1) ) {
\r
300 if ( recOpt.IsNull() || gSystem->AccessPathName(recOpt.Data()) ) {stopped = kTRUE; break;}
\r
301 AliInfo(Form("Using %s for SDD precalibration",recOpt.Data()));
\r
302 TFile* precfi = TFile::Open(recOpt.Data());
\r
303 if (!precfi->IsOpen()) {stopped = kTRUE; break;}
\r
304 fCorrectSDD = (AliITSresponseSDD*)precfi->Get("AliITSresponseSDD");
\r
307 if (!fCorrectSDD) {AliError("Precalibration SDD object is not found"); stopped = kTRUE; break;}
\r
310 recTitle = kRecKeys[ kInitCalSDDFile ];
\r
311 if ( GetConfigRecord(pfc,recTitle,recOpt,1) ) {
\r
312 if ( recOpt.IsNull() || gSystem->AccessPathName(recOpt.Data()) ) {stopped = kTRUE; break;}
\r
313 AliInfo(Form("Using %s as SDD calibration used in TrackPoints",recOpt.Data()));
\r
314 TFile* precf = TFile::Open(recOpt.Data());
\r
315 if (!precf->IsOpen()) {stopped = kTRUE; break;}
\r
316 fInitialRecSDD = (AliITSresponseSDD*)precf->Get("AliITSresponseSDD");
\r
319 if (!fInitialRecSDD) {AliError("Initial Calibration SDD object is not found"); stopped = kTRUE; break;}
\r
322 recTitle = kRecKeys[ kGlobalDeltas ];
\r
323 if ( GetConfigRecord(pfc,recTitle,recOpt,1) ) SetUseGlobalDelta(kTRUE);
\r
325 // =========== 2: see if there are local gaussian constraints defined =====================
\r
326 // Note that they should be loaded before the modules declaration
\r
328 recTitle = kRecKeys[ kConstrLocal ];
\r
329 while( (recArr=GetConfigRecord(pfc,recTitle,recOpt,0)) ) {
\r
330 nrecElems = recArr->GetLast()+1;
\r
331 if (recOpt.IsFloat()) {stopped = kTRUE; break;} // wrong name
\r
332 if (GetConstraint(recOpt.Data())) {
\r
333 AliError(Form("Existing constraint %s repeated",recOpt.Data()));
\r
334 stopped = kTRUE; break;
\r
336 recExt = recArr->At(2)->GetName();
\r
337 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
338 double val = recExt.Atof();
\r
339 recExt = recArr->At(3)->GetName();
\r
340 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
341 double err = recExt.Atof();
\r
342 int nwgh = nrecElems - 4;
\r
343 double *wgh = new double[nwgh];
\r
344 for (nwgh=0,irec=4;irec<nrecElems;irec++) {
\r
345 recExt = recArr->At(irec)->GetName();
\r
346 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
347 wgh[nwgh++] = recExt.Atof();
\r
349 if (stopped) {delete[] wgh; break;}
\r
351 ConstrainLocal(recOpt.Data(),wgh,nwgh,val,err);
\r
354 } // end while for loop over local constraints
\r
355 if (stopped) break;
\r
357 // =========== 3: now read modules to align ===================================
\r
360 while( (recArr=GetConfigRecord(pfc,recTitle="",recOpt,0)) ) {
\r
361 if (!(recTitle==kRecKeys[ kModVolID ] || recTitle==kRecKeys[ kModIndex ])) continue;
\r
362 // Expected format: MODULE id tolX tolY tolZ tolPsi tolTh tolPhi [[sigX sigY sigZ] extra params]
\r
363 // where tol* is the tolerance (sigma) for given DOF. 0 means fixed
\r
364 // sig* is the scaling parameters for the errors of the clusters of this module
\r
365 // extra params are defined for specific modules, e.g. t0 and vdrift corrections of SDD
\r
367 nrecElems = recArr->GetLast()+1;
\r
368 if (nrecElems<2 || !recOpt.IsDigit()) {stopped = kTRUE; break;}
\r
369 int idx = recOpt.Atoi();
\r
370 UShort_t voluid = (idx<=kMaxITSSensID) ? GetModuleVolumeID(idx) : idx;
\r
371 AliITSAlignMille2Module* mod = 0;
\r
373 if (voluid>=kMinITSSupeModuleID) { // custom supermodule
\r
374 for (int j=0; j<fNSuperModules; j++) {
\r
375 if (voluid==GetSuperModule(j)->GetVolumeID()) {
\r
376 mod = new AliITSAlignMille2Module(*GetSuperModule(j));
\r
377 // the matrix might be updated in case some prealignment was applied, check
\r
378 TGeoHMatrix* mup = AliGeomManager::GetMatrix(mod->GetName());
\r
379 if (mup) *(mod->GetMatrix()) = *mup;
\r
380 fMilleModule.AddAtAndExpand(mod,fNModules);
\r
385 else if (idx<=kMaxITSSensVID) {
\r
386 mod = new AliITSAlignMille2Module(voluid);
\r
387 fMilleModule.AddAtAndExpand(mod,fNModules);
\r
389 if (!mod) {stopped = kTRUE; break;} // bad volid
\r
391 // geometry variation settings
\r
392 for (int i=0;i<AliITSAlignMille2Module::kMaxParGeom;i++) {
\r
394 if (irec >= nrecElems) break;
\r
395 recExt = recArr->At(irec)->GetName();
\r
396 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
397 mod->SetFreeDOF(i, recExt.Atof() );
\r
399 if (stopped) break;
\r
401 // scaling factors for cluster errors
\r
402 // first set default ones
\r
403 for (int i=0;i<3;i++) mod->SetSigmaFactor(i, fSigmaFactor[i]);
\r
404 for (int i=0;i<3;i++) {
\r
406 if (irec >= nrecElems) break;
\r
407 recExt = recArr->At(irec)->GetName();
\r
408 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
409 mod->SetSigmaFactor(i, recExt.Atof() );
\r
411 if (stopped) break;
\r
413 mod->SetGeomParamsGlobal(fUseGlobalDelta);
\r
414 // now comes special detectors treatment
\r
415 if (mod->IsSDD()) {
\r
417 if (nrecElems>11) {
\r
418 recExt = recArr->At(11)->GetName();
\r
419 if (recExt.IsFloat()) vl = recExt.Atof();
\r
420 else {stopped = kTRUE; break;}
\r
423 mod->SetFreeDOF(AliITSAlignMille2Module::kDOFT0,vl);
\r
426 if (nrecElems>12) {
\r
427 recExt = recArr->At(12)->GetName();
\r
428 if (recExt.IsFloat()) vl = recExt.Atof();
\r
429 else {stopped = kTRUE; break;}
\r
432 mod->SetFreeDOF(AliITSAlignMille2Module::kDOFDV,vl);
\r
435 mod->SetUniqueID(fNModules);
\r
436 mod->EvaluateDOF();
\r
439 // now check if there are local constraints on this module
\r
440 for (++irec;irec<nrecElems;irec++) {
\r
441 recExt = recArr->At(irec)->GetName();
\r
442 if (recExt.IsFloat()) {stopped=kTRUE;break;}
\r
443 AliITSAlignMille2ConstrArray* cstr = (AliITSAlignMille2ConstrArray*)GetConstraint(recExt.Data());
\r
445 AliInfo(Form("No Local constraint %s was declared",recExt.Data()));
\r
449 cstr->AddModule(mod);
\r
451 if (stopped) break;
\r
452 } // end while for loop over modules
\r
453 if (stopped) break;
\r
455 if (fNModules==0) {AliError("Failed to find any MODULE"); stopped = kTRUE; break;}
\r
456 BuildHierarchy(); // preprocess loaded modules
\r
458 // =========== 4: the rest may come in arbitrary order =======================================
\r
460 while ( (recArr=GetConfigRecord(pfc,recTitle="",recOpt,0))!=0 ) {
\r
462 nrecElems = recArr->GetLast()+1;
\r
464 // some simple flags -----------------------------------------------------------------------
\r
466 if (recTitle == kRecKeys[ kPseudoParents ]) SetAllowPseudoParents(kTRUE);
\r
468 // some optional parameters ----------------------------------------------------------------
\r
469 else if (recTitle == kRecKeys[ kTrackFitMethod ]) {
\r
470 if (recOpt.IsNull() || !recOpt.IsDigit() ) {stopped = kTRUE; break;}
\r
471 SetInitTrackParamsMeth(recOpt.Atoi());
\r
474 else if (recTitle == kRecKeys[ kMinPntTrack ]) {
\r
475 if (recOpt.IsNull() || !recOpt.IsDigit() ) {stopped = kTRUE; break;}
\r
476 fMinNPtsPerTrack = recOpt.Atoi();
\r
479 else if (recTitle == kRecKeys[ kNStDev ]) {
\r
480 if (recOpt.IsNull() || !recOpt.IsFloat() ) {stopped = kTRUE; break;}
\r
481 fNStdDev = (Int_t)recOpt.Atof();
\r
484 else if (recTitle == kRecKeys[ kResCutInit ]) {
\r
485 if (recOpt.IsNull() || !recOpt.IsFloat() ) {stopped = kTRUE; break;}
\r
486 fResCutInitial = recOpt.Atof();
\r
489 else if (recTitle == kRecKeys[ kResCutOther ]) {
\r
490 if (recOpt.IsNull() || !recOpt.IsFloat() ) {stopped = kTRUE; break;}
\r
491 fResCut = recOpt.Atof();
\r
494 else if (recTitle == kRecKeys[ kLocalSigFactor ]) { //-------------------------
\r
495 for (irec=0;irec<3;irec++) if (nrecElems>irec+1) {
\r
496 fSigmaFactor[irec] = ((TObjString*)recArr->At(irec+1))->GetString().Atof();
\r
497 if (fSigmaFactor[irec]<=0.) stopped = kTRUE;
\r
499 if (stopped) break;
\r
502 else if (recTitle == kRecKeys[ kStartFactor ]) { //-------------------------
\r
503 if (recOpt.IsNull() || !recOpt.IsFloat() ) {stopped = kTRUE; break;}
\r
504 fStartFac = recOpt.Atof();
\r
507 else if (recTitle == kRecKeys[ kBField ]) { //-------------------------
\r
508 if (recOpt.IsNull() || !recOpt.IsFloat() ) {stopped = kTRUE; break;}
\r
509 fBField = recOpt.Atof();
\r
512 fNLocal = 5; // helices
\r
513 fRieman = new AliTrackFitterRieman();
\r
522 else if (recTitle == kRecKeys[ kSparseMatrix ]) { // matrix solver type
\r
524 AliMillePede2::SetGlobalMatSparse(kTRUE);
\r
525 if (recOpt.IsNull()) continue;
\r
526 // solver type and settings
\r
527 if (recOpt == "MINRES") AliMillePede2::SetIterSolverType( AliMinResSolve::kSolMinRes );
\r
528 else if (recOpt == "FGMRES") AliMillePede2::SetIterSolverType( AliMinResSolve::kSolFGMRes );
\r
529 else {stopped = kTRUE; break;}
\r
531 if (nrecElems>=3) { // preconditioner type
\r
532 recExt = recArr->At(2)->GetName();
\r
533 if (!recExt.IsDigit()) {stopped = kTRUE; break;}
\r
534 AliMillePede2::SetMinResPrecondType( recExt.Atoi() );
\r
537 if (nrecElems>=4) { // tolerance
\r
538 recExt = recArr->At(3)->GetName();
\r
539 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
540 AliMillePede2::SetMinResTol( recExt.Atof() );
\r
543 if (nrecElems>=5) { // maxIter
\r
544 recExt = recArr->At(4)->GetName();
\r
545 if (!recExt.IsDigit()) {stopped = kTRUE; break;}
\r
546 AliMillePede2::SetMinResMaxIter( recExt.Atoi() );
\r
550 else if (recTitle == kRecKeys[ kRequirePoint ]) { //-------------------------
\r
551 // syntax: REQUIRE_POINT where ndet updw nreqpts
\r
552 // where = LAYER or DETECTOR
\r
553 // ndet = detector number: 1-6 for LAYER and 1-3 for DETECTOR (SPD=1, SDD=2, SSD=3)
\r
554 // updw = 1 for Y>0, -1 for Y<0, 0 if not specified
\r
555 // nreqpts = minimum number of points of that type
\r
556 if (nrecElems>=5) {
\r
558 int lr = ((TObjString*)recArr->At(2))->GetString().Atoi() - 1;
\r
559 int hb = ((TObjString*)recArr->At(3))->GetString().Atoi();
\r
560 int np = ((TObjString*)recArr->At(4))->GetString().Atoi();
\r
561 fRequirePoints = kTRUE;
\r
562 if (recOpt == "LAYER") {
\r
563 if (lr<0 || lr>5) {stopped = kTRUE; break;}
\r
564 if (hb>0) fNReqLayUp[lr] = np;
\r
565 else if (hb<0) fNReqLayDown[lr] = np;
\r
566 else fNReqLay[lr] = np;
\r
568 else if (recOpt == "DETECTOR") {
\r
569 if (lr<0 || lr>2) {stopped = kTRUE; break;}
\r
570 if (hb>0) fNReqDetUp[lr] = np;
\r
571 else if (hb<0) fNReqDetDown[lr] = np;
\r
572 else fNReqDet[lr] = np;
\r
574 else {stopped = kTRUE; break;}
\r
576 else {stopped = kTRUE; break;}
\r
579 // global constraints on the subunits/orphans
\r
580 else if (recTitle == kRecKeys[ kConstrOrphans ]) { //------------------------
\r
581 // expect CONSTRAINT_ORPHANS MEAN/MEDIAN Value parID0 ... parID1 ...
\r
582 if (nrecElems<4) {stopped = kTRUE; break;}
\r
583 recExt = recArr->At(2)->GetName();
\r
584 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
585 double val = recExt.Atof();
\r
586 UInt_t pattern = 0;
\r
587 for (irec=3;irec<nrecElems;irec++) { // read params to constraint
\r
588 recExt = recArr->At(irec)->GetName();
\r
589 if (!recExt.IsDigit()) {stopped = kTRUE; break;}
\r
590 pattern |= 0x1 << recExt.Atoi();
\r
592 if (stopped) break;
\r
593 if (recOpt == "MEAN") ConstrainOrphansMean(val,pattern);
\r
594 else if (recOpt == "MEDIAN") ConstrainOrphansMedian(val,pattern);
\r
595 else {stopped = kTRUE; break;}
\r
598 else if (recTitle == kRecKeys[ kConstrSubunits ]) { //------------------------
\r
599 // expect ONSTRAINT_SUBUNITS MEAN/MEDIAN Value parID0 ... parID1 ... VolID1 ... VolIDn - VolIDm
\r
600 if (nrecElems<5) {stopped = kTRUE; break;}
\r
601 recExt = recArr->At(2)->GetName();
\r
602 if (!recExt.IsFloat()) {stopped = kTRUE; break;}
\r
603 double val = recExt.Atof();
\r
604 UInt_t pattern = 0;
\r
605 for (irec=3;irec<nrecElems;irec++) { // read params to constraint
\r
606 recExt = recArr->At(irec)->GetName();
\r
607 if (!recExt.IsDigit()) {stopped = kTRUE; break;}
\r
608 int parid = recExt.Atoi();
\r
609 if (parid<kMaxITSSensID) pattern |= 0x1 << recExt.Atoi();
\r
610 else break; // list of params is over
\r
612 if (stopped) break;
\r
615 if (recOpt == "MEAN") meanC = kTRUE;
\r
616 else if (recOpt == "MEDIAN") meanC = kFALSE;
\r
617 else {stopped = kTRUE; break;}
\r
620 int rangeStart = -1;
\r
621 for (;irec<nrecElems;irec++) { // read modules to apply this constraint
\r
622 recExt = recArr->At(irec)->GetName();
\r
623 if (recExt == "-") {rangeStart = curID; continue;} // range is requested
\r
624 else if (!recExt.IsDigit()) {stopped = kTRUE; break;}
\r
625 else curID = recExt.Atoi();
\r
627 if (curID<=kMaxITSSensID) curID = GetModuleVolumeID(curID);
\r
628 // this was a range start or single
\r
630 if (rangeStart>=0) {start = rangeStart+1; rangeStart=-1;} // continue the range
\r
631 else start = curID; // create constraint either for single module (or 1st in the range)
\r
632 for (int id=start;id<=curID;id++) {
\r
633 int id0 = IsVIDDefined(id);
\r
634 if (id0<0) {AliDebug(3,Form("Undefined module %d requested in the SubUnits constraint, skipping",id)); continue;}
\r
635 if (meanC) ConstrainModuleSubUnitsMean(id0,val,pattern);
\r
636 else ConstrainModuleSubUnitsMedian(id0,val,pattern);
\r
639 if (rangeStart>=0) stopped = kTRUE; // unfinished range
\r
640 if (stopped) break;
\r
643 // association of modules with local constraints
\r
644 else if (recTitle == kRecKeys[ kApplyConstr ]) { //------------------------
\r
645 // expect APPLY_CONSTRAINT NAME [NAME1...] [VolID1 ... VolIDn - VolIDm]
\r
646 if (nrecElems<3) {stopped = kTRUE; break;}
\r
647 int nmID0=-1,nmID1=-1;
\r
648 for (irec=1;irec<nrecElems;irec++) { // find the range of constraint names
\r
649 recExt = recArr->At(irec)->GetName();
\r
650 if (recExt.IsFloat()) break;
\r
651 // check if such a constraint was declared
\r
652 if (!GetConstraint(recExt.Data())) {
\r
653 AliInfo(Form("No Local constraint %s was declared",recExt.Data()));
\r
657 if (nmID0<0) nmID0 = irec;
\r
660 if (stopped) break;
\r
662 if (irec>=nrecElems) {stopped = kTRUE; break;} // no modules provided
\r
664 // now read the list of modules to constrain
\r
666 int rangeStart = -1;
\r
667 for (;irec<nrecElems;irec++) { // read modules to apply this constraint
\r
668 recExt = recArr->At(irec)->GetName();
\r
669 if (recExt == "-") {rangeStart = curID; continue;} // range is requested
\r
670 else if (!recExt.IsDigit()) {stopped = kTRUE; break;}
\r
671 else curID = recExt.Atoi();
\r
673 if (curID<=kMaxITSSensID) curID = GetModuleVolumeID(curID);
\r
675 // this was a range start or single
\r
677 if (rangeStart>=0) {start = rangeStart+1; rangeStart=-1;} // continue the range
\r
678 else start = curID; // create constraint either for single module (or 1st in the range)
\r
679 for (int id=start;id<=curID;id++) {
\r
680 AliITSAlignMille2Module *md = GetMilleModuleByVID(id);
\r
681 if (!md) {AliDebug(3,Form("Undefined module %d requested in the Local constraint, skipping",id)); continue;}
\r
682 for (int nmid=nmID0;nmid<=nmID1;nmid++)
\r
683 ((AliITSAlignMille2ConstrArray*)GetConstraint(recArr->At(nmid)->GetName()))->AddModule(md);
\r
686 if (rangeStart>=0) stopped = kTRUE; // unfinished range
\r
687 if (stopped) break;
\r
690 else continue; // already processed record
\r
692 } // end of while loop 4 over the various params
\r
695 } // end of while(1) loop
\r
699 AliError(Form("Failed on record %s %s ...\n",recTitle.Data(),recOpt.Data()));
\r
703 fIsConfigured = kTRUE;
\r
707 //________________________________________________________________________________________________________
\r
708 void AliITSAlignMille2::BuildHierarchy()
\r
710 // build the hieararhy of the modules to align
\r
712 if (!GetUseGlobalDelta() && PseudoParentsAllowed()) {
\r
713 AliInfo("PseudoParents mode is allowed only when the deltas are global\n"
\r
714 "Since Deltas are local, switching to NoPseudoParents");
\r
715 SetAllowPseudoParents(kFALSE);
\r
717 // set parent/child relationship for modules to align
\r
718 AliInfo("Setting parent/child relationships\n");
\r
720 // 1) child -> parent reference
\r
721 for (int ipar=0;ipar<fNModules;ipar++) {
\r
722 AliITSAlignMille2Module* parent = GetMilleModule(ipar);
\r
723 if (parent->IsSensor()) continue; // sensor cannot be a parent
\r
725 for (int icld=0;icld<fNModules;icld++) {
\r
726 if (icld==ipar) continue;
\r
727 AliITSAlignMille2Module* child = GetMilleModule(icld);
\r
728 if (!child->BelongsTo(parent)) continue;
\r
729 // child cannot have more sensors than the parent
\r
730 if (child->GetNSensitiveVolumes() > parent->GetNSensitiveVolumes()) continue;
\r
732 AliITSAlignMille2Module* parOld = child->GetParent();
\r
733 // is this parent candidate closer than the old parent ?
\r
734 if (parOld && parOld->GetNSensitiveVolumes()<parent->GetNSensitiveVolumes()) continue; // parOld is closer
\r
735 child->SetParent(parent);
\r
740 // add parent -> children reference
\r
741 for (int icld=0;icld<fNModules;icld++) {
\r
742 AliITSAlignMille2Module* child = GetMilleModule(icld);
\r
743 AliITSAlignMille2Module* parent = child->GetParent();
\r
744 if (parent) parent->AddChild(child);
\r
747 // reorder the modules in such a way that parents come first
\r
748 for (int icld=0;icld<fNModules;icld++) {
\r
749 AliITSAlignMille2Module* child = GetMilleModule(icld);
\r
750 AliITSAlignMille2Module* parent;
\r
751 while ( (parent=child->GetParent()) && (parent->GetUniqueID()>child->GetUniqueID()) ) {
\r
753 fMilleModule[icld] = parent;
\r
754 fMilleModule[parent->GetUniqueID()] = child;
\r
755 child->SetUniqueID(parent->GetUniqueID());
\r
756 parent->SetUniqueID(icld);
\r
762 // Go over the child->parent chain and mark modules with explicitly provided sensors.
\r
763 // If the sensors of the unit are explicitly declared, all undeclared sensors are
\r
764 // suppresed in this unit.
\r
765 for (int icld=fNModules;icld--;) {
\r
766 AliITSAlignMille2Module* child = GetMilleModule(icld);
\r
767 AliITSAlignMille2Module* parent = child->GetParent();
\r
768 if (!parent) continue;
\r
770 // check if this parent was already processed
\r
771 if (!parent->AreSensorsProvided()) {
\r
772 parent->DelSensitiveVolumes();
\r
773 parent->SetSensorsProvided(kTRUE);
\r
775 // reattach sensors to parent
\r
776 for (int isc=child->GetNSensitiveVolumes();isc--;) {
\r
777 UShort_t senVID = child->GetSensVolVolumeID(isc);
\r
778 if (!parent->IsIn(senVID)) parent->AddSensitiveVolume(senVID);
\r
785 //________________________________________________________________________________________________________
\r
786 void AliITSAlignMille2::SetCurrentModule(Int_t id)
\r
788 // set the current supermodule
\r
790 if (fMilleVersion>=2) {
\r
791 fCurrentModule = GetMilleModule(id);
\r
795 if (fMilleVersion<=1) {
\r
797 /// set as current the SuperModule that contains the 'index' sens.vol.
\r
798 if (index<0 || index>2197) {
\r
799 AliInfo("index does not correspond to a sensitive volume!");
\r
802 UShort_t voluid=AliITSAlignMille2Module::GetVolumeIDFromIndex(index);
\r
803 Int_t k=IsContained(voluid);
\r
805 fCluster.SetVolumeID(voluid);
\r
806 fCluster.SetXYZ(0,0,0);
\r
807 InitModuleParams();
\r
810 AliInfo(Form("module %d not defined\n",index));
\r
814 //________________________________________________________________________________________________________
\r
815 void AliITSAlignMille2::SetRequiredPoint(Char_t* where, Int_t ndet, Int_t updw, Int_t nreqpts)
\r
817 // set minimum number of points in specific detector or layer
\r
818 // where = LAYER or DETECTOR
\r
819 // ndet = detector number: 1-6 for LAYER and 1-3 for DETECTOR (SPD=1, SDD=2, SSD=3)
\r
820 // updw = 1 for Y>0, -1 for Y<0, 0 if not specified
\r
821 // nreqpts = minimum number of points of that type
\r
823 if (strstr(where,"LAYER")) {
\r
824 if (ndet<0 || ndet>5) return;
\r
825 if (updw>0) fNReqLayUp[ndet]=nreqpts;
\r
826 else if (updw<0) fNReqLayDown[ndet]=nreqpts;
\r
827 else fNReqLay[ndet]=nreqpts;
\r
828 fRequirePoints=kTRUE;
\r
830 else if (strstr(where,"DETECTOR")) {
\r
831 if (ndet<0 || ndet>2) return;
\r
832 if (updw>0) fNReqDetUp[ndet]=nreqpts;
\r
833 else if (updw<0) fNReqDetDown[ndet]=nreqpts;
\r
834 else fNReqDet[ndet]=nreqpts;
\r
835 fRequirePoints=kTRUE;
\r
839 //________________________________________________________________________________________________________
\r
840 Int_t AliITSAlignMille2::GetModuleIndex(const Char_t *symname)
\r
842 /// index from symname
\r
843 if (!symname) return -1;
\r
844 for (Int_t i=0;i<=kMaxITSSensID; i++) {
\r
845 if (!strcmp(symname,AliITSgeomTGeo::GetSymName(i))) return i;
\r
850 //________________________________________________________________________________________________________
\r
851 Int_t AliITSAlignMille2::GetModuleIndex(UShort_t voluid)
\r
853 /// index from volume ID
\r
854 AliGeomManager::ELayerID lay = AliGeomManager::VolUIDToLayer(voluid);
\r
855 if (lay<1|| lay>6) return -1;
\r
856 Int_t idx=Int_t(voluid)-2048*lay;
\r
857 if (idx>=AliGeomManager::LayerSize(lay)) return -1;
\r
858 for (Int_t ilay=1; ilay<lay; ilay++)
\r
859 idx += AliGeomManager::LayerSize(ilay);
\r
863 //________________________________________________________________________________________________________
\r
864 UShort_t AliITSAlignMille2::GetModuleVolumeID(const Char_t *symname)
\r
866 /// volume ID from symname
\r
867 /// works for sensitive volumes only
\r
868 if (!symname) return 0;
\r
870 for (UShort_t voluid=2000; voluid<13300; voluid++) {
\r
872 AliGeomManager::ELayerID layerId = AliGeomManager::VolUIDToLayer(voluid,modId);
\r
873 if (layerId>0 && layerId<7 && modId>=0 && modId<AliGeomManager::LayerSize(layerId)) {
\r
874 if (!strcmp(symname,AliGeomManager::SymName(layerId,modId))) return voluid;
\r
881 //________________________________________________________________________________________________________
\r
882 UShort_t AliITSAlignMille2::GetModuleVolumeID(Int_t index)
\r
884 /// volume ID from index
\r
885 if (index<0) return 0;
\r
887 return GetModuleVolumeID(AliITSgeomTGeo::GetSymName(index));
\r
889 for (int i=0; i<fNSuperModules; i++) {
\r
890 if (GetSuperModule(i)->GetIndex()==index) return GetSuperModule(i)->GetVolumeID();
\r
896 //________________________________________________________________________________________________________
\r
897 Int_t AliITSAlignMille2::InitGeometry()
\r
899 /// initialize geometry
\r
900 AliInfo("Loading initial geometry");
\r
901 AliGeomManager::LoadGeometry(fGeometryFileName.Data());
\r
902 fGeoManager = AliGeomManager::GetGeometry();
\r
903 if (!fGeoManager) {
\r
904 AliInfo("Couldn't initialize geometry");
\r
910 //________________________________________________________________________________________________________
\r
911 Int_t AliITSAlignMille2::SetConstraintWrtRef(const char* reffname)
\r
913 // Load the global deltas from this file. The local gaussian constraints on some modules
\r
914 // will be defined with respect to the deltas from this reference file, converted to local
\r
915 // delta format. Note: conversion to local format requires reloading the geometry!
\r
917 AliInfo(Form("Loading reference deltas for local constraints from %s",reffname));
\r
918 if (!fGeoManager) return -1;
\r
919 fConstrRefFileName = reffname;
\r
920 if (fConstrRefFileName == "IDEAL") { // the reference is the ideal geometry, just create dummy reference array
\r
921 fConstrRef = new TClonesArray("AliAlignObjParams",1);
\r
924 TFile *pref = TFile::Open(fConstrRefFileName.Data());
\r
925 if (!pref->IsOpen()) return -2;
\r
926 fConstrRef = (TClonesArray*)pref->Get("ITSAlignObjs");
\r
930 AliError(Form("Did not find reference prealignment deltas in %s",reffname));
\r
934 // we need ideal geometry to convert global deltas to local ones
\r
935 if (fUsePreAlignment) {
\r
936 AliError("The call of SetConstraintWrtRef must be done before application of the prealignment");
\r
940 AliInfo("Converting global reference deltas to local ones");
\r
941 Int_t nprea = fConstrRef->GetEntriesFast();
\r
942 for (int ix=0; ix<nprea; ix++) {
\r
943 AliAlignObjParams *preo=(AliAlignObjParams*) fConstrRef->At(ix);
\r
944 if (!preo->ApplyToGeometry()) return -1;
\r
947 // now convert the global reference deltas to local ones
\r
948 for (int i=fConstrRef->GetEntriesFast();i--;) {
\r
949 AliAlignObjParams *preo = (AliAlignObjParams*)fConstrRef->At(i);
\r
950 TGeoHMatrix * mupd = AliGeomManager::GetMatrix(preo->GetSymName());
\r
951 if (!mupd) { // this is not alignable entry, need to look in the supermodules
\r
952 for (int im=fNSuperModules;im--;) {
\r
953 AliITSAlignMille2Module* mod = GetSuperModule(im);
\r
954 if ( strcmp(mod->GetName(), preo->GetSymName()) ) continue;
\r
955 mupd = mod->GetMatrix();
\r
959 AliError(Form("Failed to find the volume for reference %s",preo->GetSymName()));
\r
963 TGeoHMatrix preMat;
\r
964 preo->GetMatrix(preMat); // Delta_Glob
\r
965 TGeoHMatrix tmpMat = *mupd; // Delta_Glob * Delta_Glob_Par * M
\r
966 preMat.MultiplyLeft( &tmpMat.Inverse() ); // M^-1 * Delta_Glob_Par^-1 = (Delta_Glob_Par * M)^-1
\r
967 tmpMat.MultiplyLeft( &preMat ); // (Delta_Glob_Par * M)^-1 * Delta_Glob * Delta_Glob_Par * M = Delta_loc
\r
968 preo->SetMatrix(tmpMat); // local corrections
\r
971 // we need to reload the geometry spoiled by this reference deltas...
\r
972 delete fGeoManager;
\r
973 AliInfo("Reloading initial geometry");
\r
974 AliGeomManager::LoadGeometry(fGeometryFileName.Data());
\r
975 fGeoManager = AliGeomManager::GetGeometry();
\r
979 //________________________________________________________________________________________________________
\r
980 void AliITSAlignMille2::Init()
\r
982 // perform global initialization
\r
984 if (fIsMilleInit) {
\r
985 AliInfo("Millepede has been already initialized!");
\r
988 // range constraints in such a way that the childs are constrained before their parents
\r
989 // orphan constraints come last
\r
990 for (int ic=0;ic<GetNConstraints();ic++) {
\r
991 for (int ic1=ic+1;ic1<GetNConstraints();ic1++) {
\r
992 AliITSAlignMille2Constraint *cst0 = GetConstraint(ic);
\r
993 AliITSAlignMille2Constraint *cst1 = GetConstraint(ic1);
\r
994 if (cst0->GetModuleID()<cst1->GetModuleID()) {
\r
996 fConstraints[ic] = cst1;
\r
997 fConstraints[ic1] = cst0;
\r
1002 if (!GetUseGlobalDelta()) {
\r
1003 AliInfo("ATTENTION: The parameters are defined in the local frame, no check for degeneracy will be done");
\r
1004 for (int imd=fNModules;imd--;) {
\r
1005 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
1006 int npar = mod->GetNParTot();
\r
1007 // the parameter may have max 1 free instance, otherwise the equations are underdefined
\r
1008 for (int ipar=0;ipar<npar;ipar++) {
\r
1009 if (!mod->IsFreeDOF(ipar)) continue;
\r
1010 mod->SetParOffset(ipar,fNGlobal++);
\r
1015 // init millepede, decide which parameters are to be fitted explicitly
\r
1016 for (int imd=fNModules;imd--;) {
\r
1017 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
1018 int npar = mod->GetNParTot();
\r
1019 // the parameter may have max 1 free instance, otherwise the equations are underdefined
\r
1020 for (int ipar=0;ipar<npar;ipar++) {
\r
1021 if (!mod->IsFreeDOF(ipar)) continue; // fixed
\r
1023 int nFreeInstances = 0;
\r
1025 AliITSAlignMille2Module* parent = mod;
\r
1026 Bool_t cstMeanMed=kFALSE,cstGauss=kFALSE;
\r
1028 Bool_t addToFit = kFALSE;
\r
1029 // the parameter may be ommitted from explicit fit (if PseudoParentsAllowed is true) if
\r
1030 // 1) it is not explicitly constrained or its does not participate in Gaussian constraint
\r
1031 // 2) the same applies to all of its parents
\r
1032 // 3) it has at least 1 unconstrained direct child
\r
1034 if (!parent->IsFreeDOF(ipar)) {parent = parent->GetParent(); continue;}
\r
1036 if (IsParModConstrained(parent,ipar, cstMeanMed, cstGauss)) nFreeInstances--;
\r
1037 if (cstGauss) addToFit = kTRUE;
\r
1038 parent = parent->GetParent();
\r
1040 if (nFreeInstances>1) {
\r
1041 AliError(Form("Parameter#%d of module %s\nhas %d free instances in the "
\r
1042 "unconstrained parents\nSystem is undefined",ipar,mod->GetName(),nFreeInstances));
\r
1046 // i) Are PseudoParents allowed?
\r
1047 if (!PseudoParentsAllowed()) addToFit = kTRUE;
\r
1048 // ii) check if this module has no child with such a free parameter. Since the order of this check
\r
1049 // goes from child to parent, by this moment such a parameter must have been already added
\r
1050 else if (!IsParModFamilyVaried(mod,ipar)) addToFit = kTRUE; // no varied children at all
\r
1051 else if (!IsParFamilyFree(mod,ipar,1)) addToFit = kTRUE; // no unconstrained direct children
\r
1052 // otherwise the value of this parameter can be extracted from simple contraint and the values of
\r
1053 // the relevant parameters of its children the fit is done. Hence it is not included
\r
1054 if (!addToFit) continue;
\r
1056 // shall add this parameter to explicit fit
\r
1057 // printf("Adding %s %d -> %d\n",mod->GetName(), ipar, fNGlobal);
\r
1058 mod->SetParOffset(ipar,fNGlobal++);
\r
1063 AliInfo(Form("Initializing Millepede with %d gpar, %d lpar and %d stddev ...",fNGlobal, fNLocal, fNStdDev));
\r
1064 fGlobalDerivatives = new Double_t[fNGlobal];
\r
1065 memset(fGlobalDerivatives,0,fNGlobal*sizeof(Double_t));
\r
1067 fMillepede->InitMille(fNGlobal,fNLocal,fNStdDev,fResCut,fResCutInitial);
\r
1068 fIsMilleInit = kTRUE;
\r
1070 ResetLocalEquation();
\r
1071 AliInfo("Parameters initialized to zero");
\r
1073 /// Fix non free parameters
\r
1074 for (Int_t i=0; i<fNModules; i++) {
\r
1075 AliITSAlignMille2Module* mod = GetMilleModule(i);
\r
1076 for (Int_t j=0; j<mod->GetNParTot(); j++) {
\r
1077 if (mod->GetParOffset(j)<0) continue; // not varied
\r
1078 FixParameter(mod->GetParOffset(j),mod->GetParConstraint(j));
\r
1079 fMillepede->SetParamGrID(i, mod->GetParOffset(j));
\r
1084 if (fStartFac>1) fMillepede->SetIterations(fStartFac);
\r
1088 //________________________________________________________________________________________________________
\r
1089 void AliITSAlignMille2::AddConstraint(Double_t *par, Double_t value, Double_t sigma)
\r
1091 /// Constrain equation defined by par to value
\r
1092 if (!fIsMilleInit) Init();
\r
1093 fMillepede->SetGlobalConstraint(par, value, sigma);
\r
1094 AliInfo("Adding constraint");
\r
1097 //________________________________________________________________________________________________________
\r
1098 void AliITSAlignMille2::InitGlobalParameters(Double_t *par)
\r
1100 /// Initialize global parameters with par array
\r
1101 if (!fIsMilleInit) Init();
\r
1102 fMillepede->SetGlobalParameters(par);
\r
1103 AliInfo("Init Global Parameters");
\r
1106 //________________________________________________________________________________________________________
\r
1107 void AliITSAlignMille2::FixParameter(Int_t iPar, Double_t value)
\r
1109 /// Parameter iPar is encourage to vary in [-value;value].
\r
1110 /// If value == 0, parameter is fixed
\r
1111 if (!fIsMilleInit) {
\r
1112 AliInfo("Millepede has not been initialized!");
\r
1115 fMillepede->SetParSigma(iPar, value);
\r
1116 if (value==0) AliInfo(Form("Parameter %i Fixed", iPar));
\r
1119 //________________________________________________________________________________________________________
\r
1120 void AliITSAlignMille2::ResetLocalEquation()
\r
1122 /// Reset the derivative vectors
\r
1123 for(int i=fNLocal;i--;) fLocalDerivatives[i] = 0.0;
\r
1124 memset(fGlobalDerivatives, 0, fNGlobal*sizeof(double) );
\r
1127 //________________________________________________________________________________________________________
\r
1128 Int_t AliITSAlignMille2::ApplyToGeometry()
\r
1130 // apply starting realignment to ideal geometry
\r
1131 AliInfo(Form("Using %s for prealignment",fPreAlignmentFileName.Data()));
\r
1132 if (!fGeoManager) return -1;
\r
1133 TFile *pref = TFile::Open(fPreAlignmentFileName.Data());
\r
1134 if (!pref->IsOpen()) return -2;
\r
1135 fPrealignment = (TClonesArray*)pref->Get("ITSAlignObjs");
\r
1136 if (!fPrealignment) return -3;
\r
1137 Int_t nprea = fPrealignment->GetEntriesFast();
\r
1138 AliInfo(Form("Array of input misalignments with %d entries",nprea));
\r
1140 for (int ix=0; ix<nprea; ix++) {
\r
1141 AliAlignObjParams *preo=(AliAlignObjParams*) fPrealignment->At(ix);
\r
1142 Int_t index=AliITSAlignMille2Module::GetIndexFromVolumeID(preo->GetVolUID());
\r
1144 if (index>=fPreAlignQF.GetSize()) fPreAlignQF.Set(index+10);
\r
1145 fPreAlignQF[index] = (int) preo->GetUniqueID()+1;
\r
1147 //TString nms = preo->GetSymName();
\r
1148 //if (!nms.Contains("Ladder")) continue; //RRR
\r
1149 //printf("Applying#%4d %s\n",ix,preo->GetSymName());
\r
1150 if (!preo->ApplyToGeometry()) return -4;
\r
1156 fUsePreAlignment = kTRUE;
\r
1160 //________________________________________________________________________________________________________
\r
1161 Int_t AliITSAlignMille2::GetPreAlignmentQualityFactor(Int_t index) const
\r
1163 // quality factors from prealignment
\r
1164 if (!fUsePreAlignment || index<0 || index>=fPreAlignQF.GetSize()) return -1;
\r
1165 return fPreAlignQF[index]-1;
\r
1168 //________________________________________________________________________________________________________
\r
1169 AliTrackPointArray *AliITSAlignMille2::PrepareTrack(const AliTrackPointArray *atp)
\r
1171 /// create a new AliTrackPointArray keeping only defined modules
\r
1172 /// move points according to a given prealignment, if any
\r
1173 /// sort alitrackpoints w.r.t. global Y direction, if selected
\r
1174 const double kTiny = 1E-12;
\r
1176 AliTrackPointArray *atps=NULL;
\r
1178 Int_t npts=atp->GetNPoints();
\r
1180 /// checks if AliTrackPoints belong to defined modules
\r
1184 for (int j=0; j<npts; j++) {
\r
1185 intidx[j] = IsVIDContained(atp->GetVolumeID()[j]);
\r
1186 if (intidx[j]>=0) ngoodpts++;
\r
1188 AliDebug(3,Form("Number of points in defined modules: %d out of %d",ngoodpts,npts));
\r
1190 // reject track if not enough points are left
\r
1191 if (ngoodpts<fMinNPtsPerTrack) {
\r
1192 AliInfo("Track with not enough points!");
\r
1197 // check points in specific places
\r
1198 if (fRequirePoints) {
\r
1199 Int_t nlayup[6],nlaydown[6],nlay[6];
\r
1200 Int_t ndetup[3],ndetdown[3],ndet[3];
\r
1201 for (Int_t j=0; j<6; j++) {nlayup[j]=0; nlaydown[j]=0; nlay[j]=0;}
\r
1202 for (Int_t j=0; j<3; j++) {ndetup[j]=0; ndetdown[j]=0; ndet[j]=0;}
\r
1204 for (int i=0; i<npts; i++) {
\r
1205 // skip not defined points
\r
1206 if (intidx[i]<0) continue;
\r
1207 Float_t xx=atp->GetX()[i];
\r
1208 Float_t yy=atp->GetY()[i];
\r
1209 Float_t r=TMath::Sqrt(xx*xx + yy*yy);
\r
1212 else if (r>5 && r<10) lay=1;
\r
1213 else if (r>10 && r<18) lay=2;
\r
1214 else if (r>18 && r<30) lay=3;
\r
1215 else if (r>30 && r<40) lay=4;
\r
1216 else if (r>40) lay=5;
\r
1217 if (lay<0) continue;
\r
1219 //printf("Point %d - x=%f y=%f R=%f lay=%d det=%d\n",i,xx,yy,r,lay,det);
\r
1221 if (yy>=0.0) { // UP point
\r
1235 // checks minimum values
\r
1236 Bool_t isok=kTRUE;
\r
1237 for (Int_t j=0; j<6; j++) {
\r
1238 if (nlayup[j]<fNReqLayUp[j]) isok=kFALSE;
\r
1239 if (nlaydown[j]<fNReqLayDown[j]) isok=kFALSE;
\r
1240 if (nlay[j]<fNReqLay[j]) isok=kFALSE;
\r
1242 for (Int_t j=0; j<3; j++) {
\r
1243 if (ndetup[j]<fNReqDetUp[j]) isok=kFALSE;
\r
1244 if (ndetdown[j]<fNReqDetDown[j]) isok=kFALSE;
\r
1245 if (ndet[j]<fNReqDet[j]) isok=kFALSE;
\r
1248 AliDebug(2,Form("Track does not meet all location point requirements!"));
\r
1252 // build a new track with (sorted) (prealigned) good points
\r
1254 //atps = (AliTrackPointArray*)fTrackBuff[ngoodpts-fMinNPtsPerTrack];
\r
1255 atps = (AliTrackPointArray*)fTrackBuff[ngoodpts];
\r
1257 atps = new AliTrackPointArray(ngoodpts);
\r
1258 // fTrackBuff.AddAtAndExpand(atps,ngoodpts-fMinNPtsPerTrack);
\r
1259 fTrackBuff.AddAtAndExpand(atps,ngoodpts);
\r
1261 // atps = new AliTrackPointArray(ngoodpts);
\r
1265 for (int i=0; i<npts; i++) idx[i]=i;
\r
1266 // sort track if required
\r
1267 TMath::Sort(npts,atp->GetY(),idx); // sort descending...
\r
1270 for (int i=0; i<npts; i++) {
\r
1271 // skip not defined points
\r
1272 if (intidx[idx[i]]<0) continue;
\r
1273 atp->GetPoint(p,idx[i]);
\r
1275 // prealign point if required
\r
1276 // get IDEAL matrix
\r
1277 AliITSAlignMille2Module *mod = GetMilleModule(intidx[idx[i]]);
\r
1278 TGeoHMatrix *svOrigMatrix = mod->GetSensitiveVolumeOrigGlobalMatrix(p.GetVolumeID());
\r
1279 // get back real local coordinates: use OriginalGlobalMatrix because AliTrackPoints were written
\r
1280 // with idel geometry
\r
1281 Double_t pg[3],pl[3];
\r
1285 // printf("Global coordinates of measured point : X=%f Y=%f Z=%f \n",pg[0],pg[1],pg[2]);
\r
1286 AliDebug(3,Form("Global coordinates of measured point : X=%f Y=%f Z=%f \n",pg[0],pg[1],pg[2]));
\r
1287 svOrigMatrix->MasterToLocal(pg,pl);
\r
1289 AliDebug(3,Form("Local coordinates of measured point : X=%f Y=%f Z=%f \n",pl[0],pl[1],pl[2]));
\r
1291 // this is a temporary code to extract the drift speed used for given point
\r
1292 if (p.GetDriftTime()>0) { // RRR
\r
1293 // calculate the drift speed
\r
1294 int sid = AliITSAlignMille2Module::GetIndexFromVolumeID(p.GetVolumeID());// - kSDDoffsID;
\r
1295 fDriftTime0[npto] = fInitialRecSDD ? fInitialRecSDD->GetTimeZero(sid) : 0.;
\r
1297 AliGeomManager::ELayerID lay = AliGeomManager::VolUIDToLayer(p.GetVolumeID());
\r
1298 if (lay==3) fDriftTime0[npto] = pg[2]<0 ? 169.5 : 140.1;
\r
1299 else if (lay==4) fDriftTime0[npto] = pg[2]<0 ? 158.3 : 139.0;
\r
1301 AliError(Form("Strange layer %d for moduleID %d",lay,p.GetVolumeID()));
\r
1305 double tdif = p.GetDriftTime() - fDriftTime0[npto];
\r
1306 if (tdif<=0) tdif = 1;
\r
1307 double vdrift = (3.5085-TMath::Abs(pl[0]))/tdif;
\r
1308 if (vdrift<0) vdrift = 0;
\r
1310 // TEMPORARY CORRECTION (if provided) -------------->>>
\r
1311 if (fCorrectSDD) {
\r
1312 float t0Upd = fCorrectSDD->GetTimeZero(sid);
\r
1313 vdrift += fCorrectSDD->GetDeltaVDrift(sid);
\r
1314 tdif = p.GetDriftTime() - t0Upd;
\r
1316 pl[0] = TMath::Sign(3.5085 - vdrift*tdif,pl[0]);
\r
1317 fDriftTime0[npto] = t0Upd;
\r
1319 // TEMPORARY CORRECTION (if provided) --------------<<<
\r
1320 fDriftSpeed[npto] = TMath::Sign(vdrift,pl[0]);
\r
1323 printf("%d %+6.2f %+6.2f %+6.2f %+5.2f %+5.2f %+5.2f %+6.1f %+6.1f %+f %+f\n",
\r
1324 p.GetVolumeID(),pg[0],pg[1],pg[2],pl[0],pl[1],pl[2],p.GetDriftTime(), fDriftTime0[npto], fDriftSpeed[npto],tdif);
\r
1328 // update covariance matrix
\r
1330 Double_t hcovel[9];
\r
1331 hcovel[0]=double(p.GetCov()[0]);
\r
1332 hcovel[1]=double(p.GetCov()[1]);
\r
1333 hcovel[2]=double(p.GetCov()[2]);
\r
1334 hcovel[3]=double(p.GetCov()[1]);
\r
1335 hcovel[4]=double(p.GetCov()[3]);
\r
1336 hcovel[5]=double(p.GetCov()[4]);
\r
1337 hcovel[6]=double(p.GetCov()[2]);
\r
1338 hcovel[7]=double(p.GetCov()[4]);
\r
1339 hcovel[8]=double(p.GetCov()[5]);
\r
1340 hcov.SetRotation(hcovel);
\r
1341 // now rotate in local system
\r
1342 // printf("\nErrMatGlob: before\n"); hcov.Print(""); //RRR
\r
1343 hcov.Multiply(svOrigMatrix);
\r
1344 hcov.MultiplyLeft(&svOrigMatrix->Inverse());
\r
1345 // now hcov is LOCAL COVARIANCE MATRIX
\r
1346 // apply sigma scaling
\r
1347 // printf("\nErrMatLoc: before\n"); hcov.Print(""); //RRR
\r
1348 Double_t *hcovscl = hcov.GetRotationMatrix();
\r
1349 // for (int ir=3;ir--;) for (int ic=3;ic--;) hcovscl[ir*3+ic] *= mod->GetSigmaFactor(ir)*mod->GetSigmaFactor(ic); //RRR
\r
1350 // RS TEMPORARY: nullify non-diagonal elements and sigY
\r
1352 for (int ir=3;ir--;) for (int ic=3;ic--;) {
\r
1354 if (TMath::Abs(hcovscl[ir*3+ic])<kTiny) hcovscl[ir*3+ic] = 0.;
\r
1355 else hcovscl[ir*3+ic] *= mod->GetSigmaFactor(ir)*mod->GetSigmaFactor(ic); //RRR
\r
1357 else hcovscl[ir*3+ic] = 0;
\r
1360 // printf("\nErrMatLoc: after\n"); hcov.Print(""); //RRR
\r
1363 // correzione bug LAYER 5 SSD temporanea..
\r
1364 int ssdidx=AliITSAlignMille2Module::GetIndexFromVolumeID(p.GetVolumeID());
\r
1365 if (ssdidx>=500 && ssdidx<1248) {
\r
1366 int ladder=(ssdidx-500)%22;
\r
1367 if (ladder==18) p.SetVolumeID(AliITSAlignMille2Module::GetVolumeIDFromIndex(ssdidx+1));
\r
1368 if (ladder==19) p.SetVolumeID(AliITSAlignMille2Module::GetVolumeIDFromIndex(ssdidx-1));
\r
1371 /// get (evenctually prealigned) matrix of sens. vol.
\r
1372 TGeoHMatrix *svMatrix = mod->GetSensitiveVolumeMatrix(p.GetVolumeID());
\r
1373 // modify global coordinates according with pre-aligment
\r
1374 svMatrix->LocalToMaster(pl,pg);
\r
1375 // now rotate in local system
\r
1376 hcov.Multiply(&svMatrix->Inverse());
\r
1377 hcov.MultiplyLeft(svMatrix);
\r
1378 // hcov is back in GLOBAL RF
\r
1380 for (int ir=3;ir--;) for (int ic=3;ic--;) if (TMath::Abs(hcovscl[ir*3+ic])<kTiny) hcovscl[ir*3+ic] = 0.;
\r
1381 // printf("\nErrMatGlob: after\n"); hcov.Print(""); //RRR
\r
1384 pcov[0]=hcovscl[0];
\r
1385 pcov[1]=hcovscl[1];
\r
1386 pcov[2]=hcovscl[2];
\r
1387 pcov[3]=hcovscl[4];
\r
1388 pcov[4]=hcovscl[5];
\r
1389 pcov[5]=hcovscl[8];
\r
1391 p.SetXYZ(pg[0],pg[1],pg[2],pcov);
\r
1392 // printf("New Gl coordinates of measured point : X=%f Y=%f Z=%f \n",pg[0],pg[1],pg[2]);
\r
1393 AliDebug(3,Form("New global coordinates of measured point : X=%f Y=%f Z=%f \n",pg[0],pg[1],pg[2]));
\r
1394 atps->AddPoint(npto,&p);
\r
1395 AliDebug(2,Form("Adding point[%d] = ( %f , %f , %f ) volid = %d",npto,atps->GetX()[npto],
\r
1396 atps->GetY()[npto],atps->GetZ()[npto],atps->GetVolumeID()[npto] ));
\r
1397 // printf("Adding %d %d %f\n",npto, p.GetVolumeID(), p.GetY());
\r
1404 //________________________________________________________________________________________________________
\r
1405 AliTrackPointArray *AliITSAlignMille2::SortTrack(const AliTrackPointArray *atp)
\r
1407 /// sort alitrackpoints w.r.t. global Y direction
\r
1408 AliTrackPointArray *atps=NULL;
\r
1410 Int_t npts=atp->GetNPoints();
\r
1412 atps=new AliTrackPointArray(npts);
\r
1414 TMath::Sort(npts,atp->GetY(),idx);
\r
1416 for (int i=0; i<npts; i++) {
\r
1417 atp->GetPoint(p,idx[i]);
\r
1418 atps->AddPoint(i,&p);
\r
1419 AliDebug(2,Form("Point[%d] = ( %f , %f , %f ) volid = %d",i,atps->GetX()[i],atps->GetY()[i],atps->GetZ()[i],atps->GetVolumeID()[i] ));
\r
1424 //________________________________________________________________________________________________________
\r
1425 Int_t AliITSAlignMille2::GetCurrentLayer() const
\r
1427 // get current layer id
\r
1428 if (!fGeoManager) {
\r
1429 AliInfo("ITS geometry not initialized!");
\r
1432 return (Int_t)AliGeomManager::VolUIDToLayer(fCluster.GetVolumeID());
\r
1435 //________________________________________________________________________________________________________
\r
1436 Int_t AliITSAlignMille2::InitModuleParams()
\r
1438 /// initialize geometry parameters for a given detector
\r
1439 /// for current cluster (fCluster)
\r
1440 /// fGlobalInitParam[] is set as:
\r
1441 /// [tx,ty,tz,psi,theta,phi]
\r
1442 /// (old was [tx,ty,tz,theta,psi,phi] ROOT's angles...)
\r
1443 /// *** At the moment: using Raffalele's angles definition ***
\r
1445 /// return 0 if success
\r
1446 /// If module is found but has no parameters to vary, return 1
\r
1448 if (!fGeoManager) {
\r
1449 AliInfo("ITS geometry not initialized!");
\r
1453 // now 'voluid' is the volumeID of a SENSITIVE VOLUME (coming from a cluster)
\r
1455 // set the internal index (index in module list)
\r
1456 UShort_t voluid=fCluster.GetVolumeID();
\r
1458 // IT IS VERY IMPORTANT: start from the end of the list, where the childs are located !!!
\r
1459 Int_t k=fNModules-1;
\r
1460 fCurrentModule = 0;
\r
1461 // VERY IMPORTANT: if the sensors were explicitly provided, don't look in the supermodules
\r
1462 while (k>=0 && ! (fCurrentModule=GetMilleModule(k))->IsIn(voluid)) k--;
\r
1463 if (k<0) return -3;
\r
1466 // Check if the module has free params. If not, go over the parents
\r
1467 AliITSAlignMille2Module* mdtmp = fCurrentModule;
\r
1468 while (mdtmp && mdtmp->GetNParFree()==0) mdtmp = mdtmp->GetParent();
\r
1469 if (!mdtmp) return 1; // nothing to vary here
\r
1470 fCurrentModule = mdtmp;
\r
1473 fModuleInitParam[0] = 0.0;
\r
1474 fModuleInitParam[1] = 0.0;
\r
1475 fModuleInitParam[2] = 0.0;
\r
1476 fModuleInitParam[3] = 0.0; // psi (X)
\r
1477 fModuleInitParam[4] = 0.0; // theta (Y)
\r
1478 fModuleInitParam[5] = 0.0; // phi (Z)
\r
1479 fModuleInitParam[6] = 0.0;
\r
1480 fModuleInitParam[7] = 0.0;
\r
1481 /// get (evenctually prealigned) matrix of sens. vol.
\r
1482 TGeoHMatrix *svMatrix = fCurrentModule->GetSensitiveVolumeMatrix(voluid);
\r
1484 fMeasGlo[0] = fCluster.GetX();
\r
1485 fMeasGlo[1] = fCluster.GetY();
\r
1486 fMeasGlo[2] = fCluster.GetZ();
\r
1487 svMatrix->MasterToLocal(fMeasGlo,fMeasLoc);
\r
1488 AliDebug(2,Form("Local coordinates of measured point : X=%f Y=%f Z=%f \n",fMeasLoc[0] ,fMeasLoc[1] ,fMeasLoc[2] ));
\r
1490 // set stdev from cluster
\r
1492 Double_t hcovel[9];
\r
1493 hcovel[0]=double(fCluster.GetCov()[0]);
\r
1494 hcovel[1]=double(fCluster.GetCov()[1]);
\r
1495 hcovel[2]=double(fCluster.GetCov()[2]);
\r
1496 hcovel[3]=double(fCluster.GetCov()[1]);
\r
1497 hcovel[4]=double(fCluster.GetCov()[3]);
\r
1498 hcovel[5]=double(fCluster.GetCov()[4]);
\r
1499 hcovel[6]=double(fCluster.GetCov()[2]);
\r
1500 hcovel[7]=double(fCluster.GetCov()[4]);
\r
1501 hcovel[8]=double(fCluster.GetCov()[5]);
\r
1502 hcov.SetRotation(hcovel);
\r
1503 // now rotate in local system
\r
1504 hcov.Multiply(svMatrix);
\r
1505 hcov.MultiplyLeft(&svMatrix->Inverse());
\r
1507 // set local sigmas
\r
1508 fSigmaLoc[0] = TMath::Sqrt(TMath::Abs(hcov.GetRotationMatrix()[0]));
\r
1509 fSigmaLoc[1] = TMath::Sqrt(TMath::Abs(hcov.GetRotationMatrix()[4])); // RS
\r
1510 fSigmaLoc[2] = TMath::Sqrt(TMath::Abs(hcov.GetRotationMatrix()[8]));
\r
1512 // set minimum value for SigmaLoc to 10 micron
\r
1513 if (fSigmaLoc[0]<0.0010) fSigmaLoc[0]=0.0010;
\r
1514 if (fSigmaLoc[2]<0.0010) fSigmaLoc[2]=0.0010;
\r
1516 /* RRR the rescaling is moved to PrepareTrack
\r
1517 // multiply local sigmas by global and module specific factor
\r
1518 for (int i=3;i--;) fSigmaLoc[i] *= fSigmaFactor[i]*fCurrentModule->GetSigmaFactor(i);
\r
1521 AliDebug(2,Form("Setting StDev from CovMat : fSigmaLocX=%g fSigmaLocY=%g fSigmaLocZ=%g \n",fSigmaLoc[0] ,fSigmaLoc[1] ,fSigmaLoc[2] ));
\r
1526 //________________________________________________________________________________________________________
\r
1527 void AliITSAlignMille2::Print(Option_t*) const
\r
1529 // print current status
\r
1530 printf("*** AliMillepede for ITS ***\n");
\r
1531 printf(" Number of defined super modules: %d\n",fNModules);
\r
1532 printf(" Obtained parameters refer to %s Deltas\n",fUseGlobalDelta ? "GLOBAL":"LOCAL");
\r
1535 printf(" geometry loaded from %s\n",fGeometryFileName.Data());
\r
1537 printf(" geometry not loaded\n");
\r
1539 if (fUsePreAlignment)
\r
1540 printf(" using prealignment from %s \n",fPreAlignmentFileName.Data());
\r
1542 printf(" prealignment not used\n");
\r
1546 printf(" B Field set to %f T - using Riemann's helices\n",fBField);
\r
1548 printf(" B Field OFF - using straight lines \n");
\r
1550 if (fRequirePoints) printf(" Required points in tracks:\n");
\r
1551 for (Int_t i=0; i<6; i++) {
\r
1552 if (fNReqLayUp[i]>0) printf(" Layer %d : %d points with Y>0\n",i+1,fNReqLayUp[i]);
\r
1553 if (fNReqLayDown[i]>0) printf(" Layer %d : %d points with Y<0\n",i+1,fNReqLayDown[i]);
\r
1554 if (fNReqLay[i]>0) printf(" Layer %d : %d points \n",i+1,fNReqLay[i]);
\r
1556 for (Int_t i=0; i<3; i++) {
\r
1557 if (fNReqDetUp[i]>0) printf(" Detector %d : %d points with Y>0\n",i+1,fNReqDetUp[i]);
\r
1558 if (fNReqDetDown[i]>0) printf(" Detector %d : %d points with Y<0\n",i+1,fNReqDetDown[i]);
\r
1559 if (fNReqDet[i]>0) printf(" Detector %d : %d points \n",i+1,fNReqDet[i]);
\r
1562 printf("\n Millepede configuration parameters:\n");
\r
1563 printf(" init value for chi2 cut : %.4f\n",fStartFac);
\r
1564 printf(" first iteration cut value : %.4f\n",fResCutInitial);
\r
1565 printf(" other iterations cut value : %.4f\n",fResCut);
\r
1566 printf(" number of stddev for chi2 cut : %d\n",fNStdDev);
\r
1567 printf(" def.scaling for local sigmas : %.4f %.4f %.4f\n",fSigmaFactor[0],fSigmaFactor[1],fSigmaFactor[2]);
\r
1569 printf("List of defined modules:\n");
\r
1570 printf(" intidx\tindex\tvoluid\tname\n");
\r
1571 for (int i=0; i<fNModules; i++) {
\r
1572 AliITSAlignMille2Module* md = GetMilleModule(i);
\r
1573 printf(" %d\t%d\t%d\t%s\n",i,md->GetIndex(),md->GetVolumeID(),md->GetName());
\r
1577 //________________________________________________________________________________________________________
\r
1578 AliITSAlignMille2Module *AliITSAlignMille2::GetMilleModuleByVID(UShort_t voluid) const
\r
1580 // return pointer to a defined supermodule
\r
1581 // return NULL if error
\r
1582 Int_t i=IsVIDDefined(voluid);
\r
1583 if (i<0) return NULL;
\r
1584 return GetMilleModule(i);
\r
1587 //________________________________________________________________________________________________________
\r
1588 AliITSAlignMille2Module *AliITSAlignMille2::GetMilleModuleBySymName(const Char_t* symname) const
\r
1590 // return pointer to a defined supermodule
\r
1591 // return NULL if error
\r
1592 UShort_t vid = AliITSAlignMille2Module::GetVolumeIDFromSymname(symname);
\r
1593 if (vid>0) return GetMilleModuleByVID(vid);
\r
1594 else { // this is not alignable module, need to look within defined supermodules
\r
1595 int i = IsSymDefined(symname);
\r
1596 if (i>=0) return GetMilleModule(i);
\r
1601 //________________________________________________________________________________________________________
\r
1602 AliITSAlignMille2Module *AliITSAlignMille2::GetMilleModuleIfContained(const Char_t* symname) const
\r
1604 // return pointer to a defined/contained supermodule
\r
1605 // return NULL otherwise
\r
1606 int i = IsSymContained(symname);
\r
1607 return i<0 ? 0 : GetMilleModule(i);
\r
1610 //________________________________________________________________________________________________________
\r
1611 AliAlignObjParams* AliITSAlignMille2::GetPrealignedObject(const Char_t* symname) const
\r
1613 // get delta from prealignment for given volume
\r
1614 if (!fPrealignment) return 0;
\r
1615 for (int ipre=fPrealignment->GetEntriesFast();ipre--;) { // was the corresponding object prealigned?
\r
1616 AliAlignObjParams* preob = (AliAlignObjParams*)fPrealignment->At(ipre);
\r
1617 if (!strcmp(preob->GetSymName(),symname)) return preob;
\r
1622 //________________________________________________________________________________________________________
\r
1623 AliAlignObjParams* AliITSAlignMille2::GetConstrRefObject(const Char_t* symname) const
\r
1625 // get delta with respect to which the constraint is declared
\r
1626 if (!fConstrRef) return 0;
\r
1627 for (int ipre=fConstrRef->GetEntriesFast();ipre--;) { // was the corresponding object prealigned?
\r
1628 AliAlignObjParams* preob = (AliAlignObjParams*)fConstrRef->At(ipre);
\r
1629 if (!strcmp(preob->GetSymName(),symname)) return preob;
\r
1634 //________________________________________________________________________________________________________
\r
1635 Bool_t AliITSAlignMille2::InitRiemanFit()
\r
1637 // Initialize Riemann Fitter for current track
\r
1638 // return kFALSE if error
\r
1640 if (!fBOn) return kFALSE;
\r
1644 npts = fTrack->GetNPoints();
\r
1645 AliDebug(3,Form("Fitting track with %d points",npts));
\r
1648 fRieman->SetTrackPointArray(fTrack);
\r
1651 for (Int_t ipt=0; ipt<npts; ipt++) ai[ipt]=fTrack->GetVolumeID()[ipt];
\r
1653 // fit track with 5 params in his own tracking-rotated reference system
\r
1654 // xc = -p[1]/p[0];
\r
1656 // R = sqrt( x0*x0 + y0*y0 - y0*p[2]);
\r
1657 if (!fRieman->Fit(&ai,NULL,(AliGeomManager::ELayerID)1,(AliGeomManager::ELayerID)6)) {
\r
1661 for (int i=0; i<5; i++)
\r
1662 fLocalInitParam[i] = fRieman->GetParam()[i];
\r
1667 //________________________________________________________________________________________________________
\r
1668 void trackFit2D(Int_t &, Double_t *, double &chi2, double *par, int flag)
\r
1670 // local function for minuit
\r
1671 const double kTiny = 1.e-14;
\r
1673 static AliTrackPoint pnt;
\r
1674 static Bool_t fullErr2D;
\r
1676 if (flag==1) fullErr2D = kFALSE;//kTRUE;
\r
1677 enum {kAX,kAZ,kBX,kBZ};
\r
1678 enum {kXX=0,kXY=1,kXZ=2,kYX=kXY,kYY=3,kYZ=4,kZX=kXZ,kZY=kYZ,kZZ=5};
\r
1680 AliITSAlignMille2* alig = AliITSAlignMille2::GetInstance();
\r
1681 AliTrackPointArray* track = alig->GetCurrentTrack();
\r
1683 int npts = track->GetNPoints();
\r
1684 for (int ip=0;ip<npts;ip++) {
\r
1685 track->GetPoint(pnt,ip);
\r
1686 const float *cov = pnt.GetCov();
\r
1687 double y = pnt.GetY();
\r
1688 double dx = pnt.GetX() - (par[kAX]+y*par[kBX]);
\r
1689 double dz = pnt.GetZ() - (par[kAZ]+y*par[kBZ]);
\r
1690 double xxe = cov[kXX];
\r
1691 double zze = cov[kZZ];
\r
1692 double xze = cov[kXZ];
\r
1695 xxe += par[kBX]*par[kBX]*cov[kYY]-2.*par[kBX]*cov[kXY];
\r
1696 zze += par[kBZ]*par[kBZ]*cov[kYY]-2.*par[kBZ]*cov[kZY];
\r
1697 xze += par[kBX]*par[kBZ]*cov[kYY]-cov[kYZ]*par[kBZ]-cov[kXY]*par[kBX];
\r
1700 double det = xxe*zze - xze*xze;
\r
1702 printf("Negative diag. error (det=%+e) |sxx:%+e szz:%+e sxz:%+e| bx:%+e bz:%+e|\n"
\r
1703 "Discarding correlation term\n",det,xxe,zze,xze,par[kBX],par[kBZ]);
\r
1707 fullErr2D = kFALSE;
\r
1709 double xxeI = zze/det;
\r
1710 double zzeI = xxe/det;
\r
1711 double xzeI =-xze/det;
\r
1713 chi2 += dx*dx*xxeI + dz*dz*zzeI + 2.*dx*dz*xzeI;
\r
1715 // printf("%d | %+e %+e %+e %+e %+e -> %+e\n",ip,dx,dz,xxeI,zzeI,xzeI, chi2);
\r
1720 //________________________________________________________________________________________________________
\r
1721 void AliITSAlignMille2::InitTrackParams(int meth)
\r
1723 /// initialize local parameters with different methods
\r
1724 /// for current track (fTrack)
\r
1727 double sX=0,sXY=0,sZ=0,sZY=0,sY=0,sYY=0,det=0;
\r
1728 // simple linear interpolation
\r
1729 // get local starting parameters (to be substituted by ESD track parms)
\r
1730 // local parms (fLocalInitParam[]) are:
\r
1731 // [0] = global x coord. of straight line intersection at y=0 plane
\r
1732 // [1] = global z coord. of straight line intersection at y=0 plane
\r
1735 // test #1: linear fit in x(y) and z(y)
\r
1736 npts = fTrack->GetNPoints();
\r
1737 AliDebug(3,Form("*** initializing track with %d points ***",npts));
\r
1738 for (int i=npts;i--;) {
\r
1739 sY += fTrack->GetY()[i];
\r
1740 sYY += fTrack->GetY()[i]*fTrack->GetY()[i];
\r
1741 sX += fTrack->GetX()[i];
\r
1742 sXY += fTrack->GetX()[i]*fTrack->GetY()[i];
\r
1743 sZ += fTrack->GetZ()[i];
\r
1744 sZY += fTrack->GetZ()[i]*fTrack->GetY()[i];
\r
1746 det = sYY*npts-sY*sY;
\r
1747 if (det==0) det = 1E-20;
\r
1748 fLocalInitParam[0] = (sX*sYY-sY*sXY)/det;
\r
1749 fLocalInitParam[2] = (sXY*npts-sY*sX)/det;
\r
1751 fLocalInitParam[1] = (sZ*sYY-sY*sZY)/det;
\r
1752 fLocalInitParam[3] = (sZY*npts-sY*sZ)/det;
\r
1754 fLocalInitParam[4] = 0.0;
\r
1757 AliDebug(2,Form("X = p0gx + ugx*Y : p0gx = %f ugx = %f\n",fLocalInitParam[0],fLocalInitParam[2]));
\r
1759 if (meth==1) return;
\r
1761 // perform full fit accounting for cov.matrix
\r
1762 static TVirtualFitter *minuit = 0;
\r
1763 static Double_t step[5] = {1E-3,1E-3,1E-4,1E-4,1E-5};
\r
1764 static Double_t arglist[10];
\r
1767 minuit = TVirtualFitter::Fitter(0,4);
\r
1768 minuit->SetFCN(trackFit2D);
\r
1770 minuit->ExecuteCommand("SET ERR",arglist, 1);
\r
1773 minuit->ExecuteCommand("SET PRINT",arglist,1);
\r
1777 minuit->SetParameter(0, "ax", fLocalInitParam[0], step[0], 0,0);
\r
1778 minuit->SetParameter(1, "az", fLocalInitParam[1], step[1], 0,0);
\r
1779 minuit->SetParameter(2, "bx", fLocalInitParam[2], step[2], 0,0);
\r
1780 minuit->SetParameter(3, "bz", fLocalInitParam[3], step[3], 0,0);
\r
1782 arglist[0] = 1000; // number of function calls
\r
1783 arglist[1] = 0.001; // tolerance
\r
1784 minuit->ExecuteCommand("MIGRAD",arglist,2);
\r
1786 for (int i=0;i<4;i++) fLocalInitParam[i] = minuit->GetParameter(i);
\r
1787 for (int i=0;i<4;i++) for (int j=0;j<4;j++) fLocalInitParEr[i][j] = minuit->GetCovarianceMatrixElement(i,j);
\r
1791 //________________________________________________________________________________________________________
\r
1792 Int_t AliITSAlignMille2::IsSymDefined(const Char_t* symname) const
\r
1794 // checks if supermodule with this symname is defined and return the internal index
\r
1795 // return -1 if not.
\r
1796 for (int k=fNModules;k--;) if (!strcmp(symname,GetMilleModule(k)->GetName())) return k;
\r
1800 //________________________________________________________________________________________________________
\r
1801 Int_t AliITSAlignMille2::IsSymContained(const Char_t* symname) const
\r
1803 // checks if module with this symname is defined and return the internal index
\r
1804 // return -1 if not.
\r
1805 UShort_t vid = AliITSAlignMille2Module::GetVolumeIDFromSymname(symname);
\r
1806 if (vid>0) return IsVIDContained(vid);
\r
1807 // only sensors have real vid, but maybe we have a supermodule with fake vid?
\r
1808 // IMPORTANT: always start from the end to start from the sensors
\r
1809 return IsSymDefined(symname);
\r
1812 //________________________________________________________________________________________________________
\r
1813 Int_t AliITSAlignMille2::IsVIDDefined(UShort_t voluid) const
\r
1815 // checks if supermodule 'voluid' is defined and return the internal index
\r
1816 // return -1 if not.
\r
1817 for (int k=fNModules;k--;) if (voluid==GetMilleModule(k)->GetVolumeID()) return k;
\r
1821 //________________________________________________________________________________________________________
\r
1822 Int_t AliITSAlignMille2::IsVIDContained(UShort_t voluid) const
\r
1824 // checks if the sensitive module 'voluid' is contained inside a supermodule
\r
1825 // and return the internal index of the last identified supermodule
\r
1826 // return -1 if error
\r
1827 // IMPORTANT: always start from the end to start from the sensors
\r
1828 if (AliITSAlignMille2Module::GetIndexFromVolumeID(voluid)<0) return -1;
\r
1829 for (int k=fNModules;k--;) if (GetMilleModule(k)->IsIn(voluid)) return k;
\r
1833 //________________________________________________________________________________________________________
\r
1834 Int_t AliITSAlignMille2::CheckCurrentTrack()
\r
1836 /// checks if AliTrackPoints belongs to defined modules
\r
1837 /// return number of good poins
\r
1838 /// return 0 if not enough points
\r
1840 Int_t npts = fTrack->GetNPoints();
\r
1843 for (int j=0; j<npts; j++) if (IsVIDContained(fTrack->GetVolumeID()[j])>=0) ngoodpts++;
\r
1845 if (ngoodpts<fMinNPtsPerTrack) return 0;
\r
1850 //________________________________________________________________________________________________________
\r
1851 Int_t AliITSAlignMille2::ProcessTrack(const AliTrackPointArray *track)
\r
1853 /// Process track; Loop over hits and set local equations
\r
1854 /// here 'track' is a AliTrackPointArray
\r
1855 /// return 0 if success;
\r
1857 if (!fIsMilleInit) Init();
\r
1859 Int_t npts = track->GetNPoints();
\r
1860 AliDebug(2,Form("*** Input track with %d points ***",npts));
\r
1862 // preprocessing of the input track: keep only points in defined volumes,
\r
1863 // move points if prealignment is set, sort by Yglo if required
\r
1865 fTrack=PrepareTrack(track);
\r
1866 if (!fTrack) return -1;
\r
1868 npts = fTrack->GetNPoints();
\r
1869 if (npts>kMaxPoints) {
\r
1870 AliError(Form("Compiled with kMaxPoints=%d, current track has %d points",kMaxPoints,npts));
\r
1872 AliDebug(2,Form("*** Processing prepared track with %d points ***",npts));
\r
1874 if (!fBOn) { // straight lines
\r
1875 // set local starting parameters (to be substituted by ESD track parms)
\r
1876 // local parms (fLocalInitParam[]) are:
\r
1877 // [0] = global x coord. of straight line intersection at y=0 plane
\r
1878 // [1] = global z coord. of straight line intersection at y=0 plane
\r
1881 InitTrackParams(fInitTrackParamsMeth);
\r
1884 // local parms (fLocalInitParam[]) are the Riemann Fitter params
\r
1885 if (!InitRiemanFit()) {
\r
1886 AliInfo("Riemann fit failed! skipping this track...");
\r
1894 static Mille2Data md[kMaxPoints];
\r
1896 for (Int_t ipt=0; ipt<npts; ipt++) {
\r
1897 fTrack->GetPoint(fCluster,ipt);
\r
1898 fCluster.SetUniqueID(ipt);
\r
1899 AliDebug(2,Form("\n--- processing point %d --- \n",ipt));
\r
1901 // set geometry parameters for the the current module
\r
1902 if (InitModuleParams()) continue;
\r
1903 AliDebug(2,Form(" VolID=%d Index=%d InternalIdx=%d symname=%s\n",
\r
1904 track->GetVolumeID()[ipt], fCurrentModule->GetIndex(),
\r
1905 fCurrentModule->GetUniqueID(), AliGeomManager::SymName(track->GetVolumeID()[ipt]) ));
\r
1906 AliDebug(2,Form(" Preprocessed Point = ( %f , %f , %f ) \n",fCluster.GetX(),fCluster.GetY(),fCluster.GetZ()));
\r
1907 int res = AddLocalEquation(md[nloceq]);
\r
1908 if (res<0) {fTotBadLocEqPoints++; nloceq = 0; break;}
\r
1909 else if (res==0) nloceq++;
\r
1910 else {nloceq++; ngloeq++;}
\r
1911 } // end loop over points
\r
1914 // not enough good points?
\r
1915 if (nloceq<fMinNPtsPerTrack || ngloeq<1) return -1;
\r
1917 // finally send local equations to millepede
\r
1918 SetLocalEquations(md,nloceq);
\r
1919 fMillepede->SaveRecordData(); // RRR
\r
1924 //________________________________________________________________________________________________________
\r
1925 Int_t AliITSAlignMille2::CalcIntersectionPoint(Double_t *lpar, Double_t *gpar)
\r
1927 /// calculate track intersection point in local coordinates
\r
1928 /// according with a given set of parameters (local(4) and global(6))
\r
1929 /// and fill fPintLoc/Glo
\r
1930 /// local are: pgx0, pgz0, ugx, ugz OR riemann fitters pars
\r
1931 /// global are: tx,ty,tz,psi,theta,phi (Raff's delta angles in deg.)
\r
1932 /// return 0 if success
\r
1934 AliDebug(3,Form("lpar = %g %g %g %g %g\ngpar= %g %g %g %g %g %g\n",lpar[0],lpar[1],lpar[2],lpar[3],lpar[4],gpar[0],gpar[1],gpar[2],gpar[3],gpar[4],gpar[5]));
\r
1935 AliDebug(3,Form("deltalpar = %g %g %g %g %g\n",lpar[0]-fLocalInitParam[0],lpar[1]-fLocalInitParam[1],lpar[2]-fLocalInitParam[2],lpar[3]-fLocalInitParam[3],lpar[4]-fLocalInitParam[4]));
\r
1938 // prepare the TGeoHMatrix
\r
1939 TGeoHMatrix *tempHMat = fCurrentModule->GetSensitiveVolumeModifiedMatrix(fCluster.GetVolumeID(),gpar,
\r
1940 !fUseGlobalDelta);
\r
1941 if (!tempHMat) return -1;
\r
1943 Double_t v0g[3]; // vector with straight line direction in global coord.
\r
1944 Double_t p0g[3]; // point of the straight line (glo)
\r
1946 if (fBOn) { // B FIELD!
\r
1947 AliTrackPoint prf;
\r
1948 for (int ip=0; ip<5; ip++)
\r
1949 fRieman->SetParam(ip,lpar[ip]);
\r
1951 if (!fRieman->GetPCA(fCluster,prf)) {
\r
1952 AliInfo(Form("error in GetPCA for point %d",fCluster.GetVolumeID()));
\r
1955 // now determine straight line passing tangent to fit curve at prf
\r
1956 // ugx = dX/dY_glo = DeltaX/DeltaY_glo
\r
1957 // mo' P1=(X,Y,Z)_glo_prf
\r
1958 // => (x,y,Z)_trk_prf ruotando di alpha...
\r
1959 Double_t alpha=fRieman->GetAlpha();
\r
1960 Double_t x1g = prf.GetX();
\r
1961 Double_t y1g = prf.GetY();
\r
1962 Double_t z1g = prf.GetZ();
\r
1963 Double_t x1t = x1g*TMath::Cos(alpha) + y1g*TMath::Sin(alpha);
\r
1964 Double_t y1t = -x1g*TMath::Sin(alpha) + y1g*TMath::Cos(alpha);
\r
1965 Double_t z1t = z1g;
\r
1967 Double_t x2t = x1t+1.0;
\r
1968 Double_t y2t = y1t+fRieman->GetDYat(x1t);
\r
1969 Double_t z2t = z1t+fRieman->GetDZat(x1t);
\r
1970 Double_t x2g = x2t*TMath::Cos(alpha) - y2t*TMath::Sin(alpha);
\r
1971 Double_t y2g = x2t*TMath::Sin(alpha) + y2t*TMath::Cos(alpha);
\r
1972 Double_t z2g = z2t;
\r
1974 AliDebug(3,Form("Riemann frame: fAlpha = %f = %f ",alpha,alpha*180./TMath::Pi()));
\r
1975 AliDebug(3,Form(" prf_glo=( %f , %f , %f ) prf_rf=( %f , %f , %f )\n", x1g,y1g,z1g, x1t,y1t,z1t));
\r
1976 AliDebug(3,Form(" mov_glo=( %f , %f , %f ) rf=( %f , %f , %f )\n",x2g,y2g,z2g, x2t,y2t,z2t));
\r
1978 if (TMath::Abs(y2g-y1g)<1e-15) {
\r
1979 AliInfo("DeltaY=0! Cannot proceed...");
\r
1983 v0g[0] = (x2g-x1g)/(y2g-y1g);
\r
1985 v0g[2] = (z2g-z1g)/(y2g-y1g);
\r
1987 // point: just keep prf
\r
1992 else { // staight line
\r
1993 // vector of initial straight line direction in glob. coord
\r
1998 // intercept in yg=0 plane in glob coord
\r
2003 AliDebug(3,Form("Line vector: ( %f , %f , %f ) point:( %f , %f , %f )\n",v0g[0],v0g[1],v0g[2],p0g[0],p0g[1],p0g[2]));
\r
2005 // same in local coord.
\r
2006 Double_t p0l[3],v0l[3];
\r
2007 tempHMat->MasterToLocalVect(v0g,v0l);
\r
2008 tempHMat->MasterToLocal(p0g,p0l);
\r
2010 if (TMath::Abs(v0l[1])<1e-15) {
\r
2011 AliInfo("Track Y direction in local frame is zero! Cannot proceed...");
\r
2015 // local intersection point
\r
2016 fPintLoc[0] = p0l[0] - (v0l[0]/v0l[1])*p0l[1];
\r
2018 fPintLoc[2] = p0l[2] - (v0l[2]/v0l[1])*p0l[1];
\r
2020 // global intersection point
\r
2021 tempHMat->LocalToMaster(fPintLoc,fPintGlo);
\r
2022 AliDebug(3,Form("Intesect. point: L( %f , %f , %f ) G( %f , %f , %f )\n",fPintLoc[0],fPintLoc[1],fPintLoc[2],fPintGlo[0],fPintGlo[1],fPintGlo[2]));
\r
2027 //________________________________________________________________________________________________________
\r
2028 Int_t AliITSAlignMille2::CalcDerivatives(Int_t paridx, Bool_t islpar)
\r
2030 /// calculate numerically (ROOT's style) the derivatives for
\r
2031 /// local X intersection and local Z intersection
\r
2032 /// parlist: local (islpar=kTRUE) pgx0, pgz0, ugx0, ugz0 OR riemann's params
\r
2033 /// global (islpar=kFALSE) tx, ty, tz, psi, theta, phi (Raf's angles in deg)
\r
2034 /// return 0 if success
\r
2036 // copy initial parameters
\r
2037 Double_t lpar[kNLocal];
\r
2038 Double_t gpar[kNParCh];
\r
2039 Double_t *derivative;
\r
2040 for (Int_t i=0; i<kNLocal; i++) lpar[i]=fLocalInitParam[i];
\r
2041 for (Int_t i=0; i<kNParCh; i++) gpar[i]=fModuleInitParam[i];
\r
2043 // trial with fixed dpar...
\r
2044 Double_t dpar = 0.;
\r
2046 if (islpar) { // track parameters
\r
2047 //dpar=fLocalInitParam[paridx]*0.001;
\r
2048 // set minimum dpar
\r
2049 derivative = fDerivativeLoc[paridx];
\r
2051 if (paridx<3) dpar=1.0e-4; // translations
\r
2052 else dpar=1.0e-6; // direction
\r
2055 // pepo: proviamo con 1/1000, poi evenctually 1/100...
\r
2056 Double_t dfrac=0.01;
\r
2059 // RMS cosmics: 1e-4
\r
2060 dpar = TMath::Max(1.0e-6,TMath::Abs(fLocalInitParam[paridx]*dfrac));
\r
2063 // RMS cosmics: 0.2
\r
2064 dpar = TMath::Max(0.002,TMath::Abs(fLocalInitParam[paridx]*dfrac));
\r
2068 dpar = TMath::Max(0.09,TMath::Abs(fLocalInitParam[paridx]*dfrac));
\r
2072 dpar = TMath::Max(0.07,TMath::Abs(fLocalInitParam[paridx]*dfrac));
\r
2075 // RMS cosmics: 0.3
\r
2076 dpar = TMath::Max(0.003,TMath::Abs(fLocalInitParam[paridx]*dfrac));
\r
2081 else { // alignment global parameters
\r
2082 derivative = fDerivativeGlo[paridx];
\r
2083 //dpar=fModuleInitParam[paridx]*0.001;
\r
2084 if (paridx<3) dpar=1.0e-4; // translations
\r
2085 else dpar=1.0e-2; // angles
\r
2088 AliDebug(3,Form("+++ using dpar=%g",dpar));
\r
2090 // calculate derivative ROOT's like:
\r
2091 // using f(x+h),f(x-h),f(x+h/2),f(x-h2)...
\r
2092 Double_t pintl1[3]; // f(x-h)
\r
2093 Double_t pintl2[3]; // f(x-h/2)
\r
2094 Double_t pintl3[3]; // f(x+h/2)
\r
2095 Double_t pintl4[3]; // f(x+h)
\r
2098 if (islpar) lpar[paridx] -= dpar;
\r
2099 else gpar[paridx] -= dpar;
\r
2100 if (CalcIntersectionPoint(lpar, gpar)) return -2;
\r
2101 for (Int_t i=0; i<3; i++) pintl1[i]=fPintLoc[i];
\r
2104 if (islpar) lpar[paridx] += dpar/2;
\r
2105 else gpar[paridx] += dpar/2;
\r
2106 if (CalcIntersectionPoint(lpar, gpar)) return -2;
\r
2107 for (Int_t i=0; i<3; i++) pintl2[i]=fPintLoc[i];
\r
2110 if (islpar) lpar[paridx] += dpar;
\r
2111 else gpar[paridx] += dpar;
\r
2112 if (CalcIntersectionPoint(lpar, gpar)) return -2;
\r
2113 for (Int_t i=0; i<3; i++) pintl3[i]=fPintLoc[i];
\r
2116 if (islpar) lpar[paridx] += dpar/2;
\r
2117 else gpar[paridx] += dpar/2;
\r
2118 if (CalcIntersectionPoint(lpar, gpar)) return -2;
\r
2119 for (Int_t i=0; i<3; i++) pintl4[i]=fPintLoc[i];
\r
2121 Double_t h2 = 1./(2.*dpar);
\r
2122 Double_t d0 = pintl4[0]-pintl1[0];
\r
2123 Double_t d2 = 2.*(pintl3[0]-pintl2[0]);
\r
2124 derivative[0] = h2*(4*d2 - d0)/3.;
\r
2125 if (TMath::Abs(derivative[0]) < 1.0e-9) derivative[0] = 0.0;
\r
2127 d0 = pintl4[2]-pintl1[2];
\r
2128 d2 = 2.*(pintl3[2]-pintl2[2]);
\r
2129 derivative[2] = h2*(4*d2 - d0)/3.;
\r
2130 if (TMath::Abs(derivative[2]) < 1.0e-9) derivative[2]=0.0;
\r
2132 AliDebug(3,Form("\n+++ derivatives +++ \n"));
\r
2133 AliDebug(3,Form("+++ dXLoc/dpar = %g +++\n",derivative[0]));
\r
2134 AliDebug(3,Form("+++ dZLoc/dpar = %g +++\n\n",derivative[2]));
\r
2139 //________________________________________________________________________________________________________
\r
2140 Int_t AliITSAlignMille2::AddLocalEquation(Mille2Data &m)
\r
2142 /// Define local equation for current cluster in X and Z coor.
\r
2143 /// and store them to memory
\r
2144 /// return -1 in case of failure to build some equation
\r
2145 /// 0 if no free global parameters were found but local eq is built
\r
2146 /// 1 if both local and global eqs are built
\r
2148 // store first intersection point
\r
2149 if (CalcIntersectionPoint(fLocalInitParam, fModuleInitParam)) return -1;
\r
2150 for (Int_t i=0; i<3; i++) fPintLoc0[i]=fPintLoc[i];
\r
2151 AliDebug(2,Form("Intesect. point: L( %f , %f , %f )",fPintLoc[0],fPintLoc[1],fPintLoc[2]));
\r
2153 // calculate local derivatives numerically
\r
2154 Bool_t zeroX = kTRUE;
\r
2155 Bool_t zeroZ = kTRUE;
\r
2157 for (Int_t i=0; i<fNLocal; i++) {
\r
2158 if (CalcDerivatives(i,kTRUE)) return -1;
\r
2159 m.fDerLocX[i] = fDerivativeLoc[i][0];
\r
2160 m.fDerLocZ[i] = fDerivativeLoc[i][2];
\r
2161 if (zeroX) zeroX = fDerivativeLoc[i][0]==0;
\r
2162 if (zeroZ) zeroZ = fDerivativeLoc[i][2]==0;
\r
2164 // for (Int_t i=0; i<fNLocal; i++) AliDebug(2,Form("Local parameter %d - dXdpar = %g - dZdpar = %g\n",i,dXdL[i],dZdL[i]));
\r
2166 if (zeroX) {AliInfo("Skipping: zero local X derivatives!"); return -1;}
\r
2167 if (zeroZ) {AliInfo("Skipping: zero local Z derivatives!"); return -1;}
\r
2171 AliITSAlignMille2Module* endModule = fCurrentModule;
\r
2173 zeroX = zeroZ = kTRUE;
\r
2174 Bool_t dfDone[kNParCh];
\r
2175 for (int i=kNParCh;i--;) dfDone[i] = kFALSE;
\r
2176 m.fNModFilled = 0;
\r
2178 // special block for SDD derivatives
\r
2179 Double_t jacobian[kNParChGeom];
\r
2180 Int_t nmodTested = 0;
\r
2183 if (fCurrentModule->GetNParFree()==0) continue;
\r
2185 for (Int_t i=0; i<kNParChGeom; i++) { // common for all sensors: derivatives over geom params
\r
2187 if (!fUseGlobalDelta) dfDone[i] = kFALSE; // for global deltas the derivatives at diff. levels are different
\r
2188 if (fCurrentModule->GetParOffset(i)<0) continue; // this parameter is not explicitly fitted
\r
2189 if (!dfDone[i]) {
\r
2190 if (CalcDerivatives(i,kFALSE)) return -1;
\r
2192 dfDone[i] = kTRUE;
\r
2193 if (zeroX) zeroX = fDerivativeGlo[i][0]==0;
\r
2194 if (zeroZ) zeroZ = fDerivativeGlo[i][2]==0;
\r
2198 m.fDerGloX[ifill] = fDerivativeGlo[i][0];
\r
2199 m.fDerGloZ[ifill] = fDerivativeGlo[i][2];
\r
2200 m.fParMilleID[ifill++] = fCurrentModule->GetParOffset(i);
\r
2203 // specific for special sensors
\r
2204 if ( fCurrentModule->IsSDD() &&
\r
2205 (fCurrentModule->GetParOffset(AliITSAlignMille2Module::kDOFT0)>=0 ||
\r
2206 fCurrentModule->GetParOffset(AliITSAlignMille2Module::kDOFDV)>=0) ) {
\r
2208 // assume for sensor local xloc = xloc0 + V0*dT0+dV*(T-T0)
\r
2209 // where V0 and T are the nominal drift velocity, time and time0
\r
2210 // and the dT0 and dV are the corrections:
\r
2211 // dX/dT0 = dX/dxloc * dxloc/dT0 = dX/dxloc * V0
\r
2212 // dX/dV = dX/dxloc * dxloc/dV = dX/dxloc * (T-T0)
\r
2213 // IMPORTANT: the geom derivatives are over the SENSOR LOCAL parameters
\r
2215 if (!dfDone[AliITSAlignMille2Module::kDOFT0] || !dfDone[AliITSAlignMille2Module::kDOFDV]) {
\r
2217 double dXdxlocsens=0., dZdxlocsens=0.;
\r
2219 // if the current module is the sensor itself and we work with local params, then
\r
2220 // we can directly take dX/dxloc_sens dZ/dxloc_sens
\r
2221 if (!fUseGlobalDelta && fCurrentModule->GetVolumeID()==fCluster.GetVolumeID()) {
\r
2222 if (dfDone[AliITSAlignMille2Module::kDOFTX]) {
\r
2223 CalcDerivatives(AliITSAlignMille2Module::kDOFTX,kFALSE);
\r
2224 dfDone[AliITSAlignMille2Module::kDOFTX] = kTRUE;
\r
2226 dXdxlocsens = fDerivativeGlo[AliITSAlignMille2Module::kDOFTX][0];
\r
2227 dZdxlocsens = fDerivativeGlo[AliITSAlignMille2Module::kDOFTX][2];
\r
2230 else { // need to perform some transformations
\r
2231 // fetch the jacobian of the transformation from the sensors local frame to the frame
\r
2232 // where the parameters are defined:
\r
2233 // Global: dX/dxloc_sens = dX/dxgl*dxgl/dxloc_sens + ...dX/dphigl*dphigl/dxloc_sens
\r
2234 if (fUseGlobalDelta) fCurrentModule->CalcDerivGloLoc(fCluster.GetVolumeID(),
\r
2235 AliITSAlignMille2Module::kDOFTX, jacobian);
\r
2236 // Local: dX/dxloc_sens = dX/dxcurr*dxcurr/dxloc_sens +..+dX/dphicurr * dphicurr/dxloc_sens
\r
2237 else fCurrentModule->CalcDerivCurLoc(fCluster.GetVolumeID(),
\r
2238 AliITSAlignMille2Module::kDOFTX, jacobian);
\r
2240 for (int j=0;j<kNParChGeom;j++) {
\r
2241 // need global derivative even if the j-th param is locked
\r
2242 if (!dfDone[j]) {CalcDerivatives(j,kFALSE); dfDone[j] = kTRUE;}
\r
2243 dXdxlocsens += fDerivativeGlo[j][0] * jacobian[j];
\r
2244 dZdxlocsens += fDerivativeGlo[j][2] * jacobian[j];
\r
2248 if (zeroX) zeroX = dXdxlocsens == 0;
\r
2249 if (zeroZ) zeroZ = dZdxlocsens == 0;
\r
2251 double vdrift = GetVDriftSDD();
\r
2252 double tdrift = GetTDriftSDD();
\r
2254 fDerivativeGlo[AliITSAlignMille2Module::kDOFT0][0] = dXdxlocsens*vdrift;
\r
2255 fDerivativeGlo[AliITSAlignMille2Module::kDOFT0][2] = dZdxlocsens*vdrift;
\r
2256 dfDone[AliITSAlignMille2Module::kDOFT0] = kTRUE;
\r
2258 fDerivativeGlo[AliITSAlignMille2Module::kDOFDV][0] = -dXdxlocsens*TMath::Sign(tdrift,vdrift);
\r
2259 fDerivativeGlo[AliITSAlignMille2Module::kDOFDV][2] = -dZdxlocsens*TMath::Sign(tdrift,vdrift);
\r
2260 dfDone[AliITSAlignMille2Module::kDOFDV] = kTRUE;
\r
2264 if (fCurrentModule->GetParOffset(AliITSAlignMille2Module::kDOFT0)>=0) {
\r
2265 m.fDerGloX[ifill] = fDerivativeGlo[AliITSAlignMille2Module::kDOFT0][0];
\r
2266 m.fDerGloZ[ifill] = fDerivativeGlo[AliITSAlignMille2Module::kDOFT0][2];
\r
2267 m.fParMilleID[ifill++] = fCurrentModule->GetParOffset(AliITSAlignMille2Module::kDOFT0);
\r
2270 if (fCurrentModule->GetParOffset(AliITSAlignMille2Module::kDOFDV)>=0) {
\r
2271 m.fDerGloX[ifill] = fDerivativeGlo[AliITSAlignMille2Module::kDOFDV][0];
\r
2272 m.fDerGloZ[ifill] = fDerivativeGlo[AliITSAlignMille2Module::kDOFDV][2];
\r
2273 m.fParMilleID[ifill++] = fCurrentModule->GetParOffset(AliITSAlignMille2Module::kDOFDV);
\r
2277 m.fModuleID[m.fNModFilled++] = fCurrentModule->GetUniqueID();
\r
2278 } while( (fCurrentModule=fCurrentModule->GetParent()) );
\r
2280 if (nmodTested>0 && zeroX) {AliInfo("Skipping: zero global X derivatives!");return -1;}
\r
2281 if (nmodTested>0 && zeroZ) {AliInfo("Skipping: zero global Z derivatives!");return -1;}
\r
2283 // ok, can copy to m
\r
2284 AliDebug(2,Form("Adding local equation X with fMeas=%.6f and fSigma=%.6f",(fMeasLoc[0]-fPintLoc0[0]), fSigmaLoc[0]));
\r
2285 m.fMeasX = fMeasLoc[0]-fPintLoc0[0];
\r
2286 m.fSigmaX = fSigmaLoc[0];
\r
2288 AliDebug(2,Form("Adding local equation Z with fMeas=%.6f and fSigma=%.6f",(fMeasLoc[2]-fPintLoc0[2]), fSigmaLoc[2]));
\r
2289 m.fMeasZ = fMeasLoc[2]-fPintLoc0[2];
\r
2290 m.fSigmaZ = fSigmaLoc[2];
\r
2292 m.fNGlobFilled = ifill;
\r
2293 fCurrentModule = endModule;
\r
2295 return Int_t(!zeroX && !zeroZ);
\r
2298 //________________________________________________________________________________________________________
\r
2299 void AliITSAlignMille2::SetLocalEquations(const Mille2Data *marr, Int_t neq)
\r
2301 /// Set local equations with data stored in m
\r
2302 /// return 0 if success
\r
2304 for (Int_t j=0; j<neq; j++) {
\r
2306 const Mille2Data &m = marr[j];
\r
2308 // set equation for Xloc coordinate
\r
2309 AliDebug(2,Form("setting local equation X with fMeas=%.6f and fSigma=%.6f",m.fMeasX, m.fSigmaX));
\r
2310 for (int i=fNLocal; i--;) SetLocalDerivative( i, m.fDerLocX[i] );
\r
2311 for (int i=m.fNGlobFilled;i--;) SetGlobalDerivative( m.fParMilleID[i] , m.fDerGloX[i] );
\r
2312 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, m.fMeasX, m.fSigmaX);
\r
2314 // set equation for Zloc coordinate
\r
2315 AliDebug(2,Form("setting local equation Z with fMeas=%.6f and fSigma=%.6f",m.fMeasZ, m.fSigmaZ));
\r
2316 for (int i=fNLocal; i--;) SetLocalDerivative( i, m.fDerLocZ[i] );
\r
2317 for (int i=m.fNGlobFilled;i--;) SetGlobalDerivative( m.fParMilleID[i] , m.fDerGloZ[i] );
\r
2318 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, m.fMeasZ, m.fSigmaZ);
\r
2320 for (int i=m.fNModFilled;i--;) GetMilleModule(m.fModuleID[i])->IncNProcessedPoints();
\r
2325 //________________________________________________________________________________________________________
\r
2326 Int_t AliITSAlignMille2::GlobalFit()
\r
2328 /// Call global fit; Global parameters are stored in parameters
\r
2329 if (!fIsMilleInit) Init();
\r
2331 ApplyPreConstraints();
\r
2332 int res = fMillepede->GlobalFit();
\r
2333 AliInfo(Form("%s fitting global parameters!",res ? "Done":"Failed"));
\r
2335 // fetch the parameters
\r
2336 for (int imd=fNModules;imd--;) {
\r
2337 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
2339 for (int ip=mod->GetNParTot();ip--;) {
\r
2340 int idp = mod->GetParOffset(ip);
\r
2341 if (idp<0) continue; // was not in the explicit fit
\r
2342 mod->SetParVal(ip,fMillepede->GetFinalParam(idp));
\r
2343 mod->SetParErr(ip,fMillepede->GetFinalError(idp));
\r
2344 int np = fMillepede->GetProcessedPoints(idp);
\r
2345 if (TMath::Abs(np)>TMath::Abs(nprocp)) nprocp = np;
\r
2347 if (!mod->GetNProcessedPoints()) mod->SetNProcessedPoints(nprocp);
\r
2351 ApplyPostConstraints();
\r
2355 //________________________________________________________________________________________________________
\r
2356 void AliITSAlignMille2::PrintGlobalParameters()
\r
2358 /// Print global parameters
\r
2359 if (!fIsMilleInit) {
\r
2360 AliInfo("Millepede has not been initialized!");
\r
2363 fMillepede->PrintGlobalParameters();
\r
2366 //________________________________________________________________________________________________________
\r
2367 Int_t AliITSAlignMille2::LoadSuperModuleFile(const Char_t *sfile)
\r
2369 // load definitions of supermodules from a root file
\r
2370 // return 0 if success
\r
2372 TFile *smf=TFile::Open(sfile);
\r
2373 if (!smf->IsOpen()) {
\r
2374 AliInfo(Form("Cannot open supermodule file %s",sfile));
\r
2378 TClonesArray *sma=(TClonesArray*)smf->Get("ITSMilleSuperModules");
\r
2380 AliInfo(Form("Cannot find ITSMilleSuperModules array in file"));
\r
2383 Int_t nsma=sma->GetEntriesFast();
\r
2384 AliInfo(Form("Array of SuperModules with %d entries\n",nsma));
\r
2388 char symname[250];
\r
2394 for (Int_t i=0; i<nsma; i++) {
\r
2395 AliAlignObjParams *a = (AliAlignObjParams*)sma->UncheckedAt(i);
\r
2396 volid=a->GetVolUID();
\r
2397 strcpy(st,a->GetSymName());
\r
2400 sscanf(st,"%s",symname);
\r
2402 // decode module list
\r
2403 char *stp=strstr(st,"ModuleList:");
\r
2404 if (!stp) return -3;
\r
2407 char spp[200]; int jp=0;
\r
2415 if (st[j]==9 || st[j]==32 || st[j]==10 || st[j]==0) {
\r
2418 if (strlen(spp)) {
\r
2419 int k=strcspn(spp,"-");
\r
2420 if (k<int(strlen(spp))) { // c'e' il -
\r
2421 strcpy(cl,&(spp[k+1]));
\r
2423 int ifrom=atoi(spp); int ito=atoi(cl);
\r
2424 for (int b=ifrom; b<=ito; b++) {
\r
2429 else { // numerillo singolo
\r
2441 UShort_t volidsv[2198];
\r
2442 for (j=0;j<n;j++) {
\r
2443 volidsv[j]=AliITSAlignMille2Module::GetVolumeIDFromIndex(idx[j]);
\r
2444 if (!volidsv[j]) {
\r
2445 AliInfo(Form("Index %d not valid (range 0->%d)",idx[j],kMaxITSSensID));
\r
2449 Int_t smindex=int(2198+volid-14336); // virtual index
\r
2451 fSuperModule.AddAtAndExpand(new AliITSAlignMille2Module(smindex,volid,symname,&m,n,volidsv),fNSuperModules);
\r
2461 //________________________________________________________________________________________________________
\r
2462 void AliITSAlignMille2::ConstrainModuleSubUnitsMean(Int_t idm, Double_t val, UInt_t pattern)
\r
2464 // require that sum of modifications for the childs of this module is = val, i.e.
\r
2465 // the internal corrections moves the module as a whole by fixed value (0 by default).
\r
2466 // pattern is the bit pattern for the parameters to constrain
\r
2468 if (fIsMilleInit) {
\r
2469 AliInfo("Millepede has been already initialized: no constrain may be added!");
\r
2472 if (!GetMilleModule(idm)->GetNChildren()) return;
\r
2473 TString nm = "cstrSUMean";
\r
2474 nm += GetNConstraints();
\r
2475 AliITSAlignMille2Constraint *cstr = new AliITSAlignMille2Constraint(nm.Data(),AliITSAlignMille2Constraint::kTypeMean,
\r
2477 cstr->SetConstraintID(GetNConstraints());
\r
2478 fConstraints.Add(cstr);
\r
2481 //________________________________________________________________________________________________________
\r
2482 void AliITSAlignMille2::ConstrainModuleSubUnitsMedian(Int_t idm, Double_t val, UInt_t pattern)
\r
2484 // require that median of the modifications for the childs of this module is = val, i.e.
\r
2485 // the internal corrections moves the module as a whole by fixed value (0 by default)
\r
2486 // module the outliers.
\r
2487 // pattern is the bit pattern for the parameters to constrain
\r
2488 // The difference between the mean and the median will be transfered to the parent
\r
2489 if (fIsMilleInit) {
\r
2490 AliInfo("Millepede has been already initialized: no constrain may be added!");
\r
2493 if (!GetMilleModule(idm)->GetNChildren()) return;
\r
2494 TString nm = "cstrSUMed";
\r
2495 nm += GetNConstraints();
\r
2496 AliITSAlignMille2Constraint *cstr = new AliITSAlignMille2Constraint(nm.Data(),AliITSAlignMille2Constraint::kTypeMedian,
\r
2498 cstr->SetConstraintID(GetNConstraints());
\r
2499 fConstraints.Add(cstr);
\r
2502 //________________________________________________________________________________________________________
\r
2503 void AliITSAlignMille2::ConstrainOrphansMean(Double_t val, UInt_t pattern)
\r
2505 // require that median of the modifications for the supermodules which have no parents is = val, i.e.
\r
2506 // the corrections moves the whole setup by fixed value (0 by default) modulo the outliers.
\r
2507 // pattern is the bit pattern for the parameters to constrain
\r
2509 if (fIsMilleInit) {
\r
2510 AliInfo("Millepede has been already initialized: no constrain may be added!");
\r
2513 TString nm = "cstrOMean";
\r
2514 nm += GetNConstraints();
\r
2515 AliITSAlignMille2Constraint *cstr = new AliITSAlignMille2Constraint(nm.Data(),AliITSAlignMille2Constraint::kTypeMean,
\r
2517 cstr->SetConstraintID(GetNConstraints());
\r
2518 fConstraints.Add(cstr);
\r
2521 //________________________________________________________________________________________________________
\r
2522 void AliITSAlignMille2::ConstrainOrphansMedian(Double_t val, UInt_t pattern)
\r
2524 // require that median of the modifications for the supermodules which have no parents is = val, i.e.
\r
2525 // the corrections moves the whole setup by fixed value (0 by default) modulo the outliers.
\r
2526 // pattern is the bit pattern for the parameters to constrain
\r
2528 if (fIsMilleInit) {
\r
2529 AliInfo("Millepede has been already initialized: no constrain may be added!");
\r
2532 TString nm = "cstrOMed";
\r
2533 nm += GetNConstraints();
\r
2534 AliITSAlignMille2Constraint *cstr = new AliITSAlignMille2Constraint(nm.Data(),AliITSAlignMille2Constraint::kTypeMedian,
\r
2536 cstr->SetConstraintID(GetNConstraints());
\r
2537 fConstraints.Add(cstr);
\r
2540 //________________________________________________________________________________________________________
\r
2541 void AliITSAlignMille2::ConstrainLocal(const Char_t* name,Double_t *parcf,Int_t npar,Double_t val,Double_t err)
\r
2543 // apply constraint on parameters in the local frame
\r
2544 if (fIsMilleInit) {
\r
2545 AliInfo("Millepede has been already initialized: no constrain may be added!");
\r
2548 AliITSAlignMille2ConstrArray *cstr = new AliITSAlignMille2ConstrArray(name,parcf,npar,val,err);
\r
2549 cstr->SetConstraintID(GetNConstraints());
\r
2550 fConstraints.Add(cstr);
\r
2553 //________________________________________________________________________________________________________
\r
2554 void AliITSAlignMille2::ApplyGaussianConstraint(const AliITSAlignMille2ConstrArray* cstr)
\r
2556 // apply the constraint on the local corrections of a list of modules
\r
2557 int nmod = cstr->GetNModules();
\r
2558 double jacobian[AliITSAlignMille2Module::kMaxParGeom][AliITSAlignMille2Module::kMaxParGeom];
\r
2560 for (int imd=nmod;imd--;) {
\r
2561 int modID = cstr->GetModuleID(imd);
\r
2562 AliITSAlignMille2Module* mod = GetMilleModule(modID);
\r
2563 ResetLocalEquation();
\r
2565 double value = cstr->GetValue();
\r
2566 double sigma = cstr->GetError();
\r
2568 // in case the reference (survey) deltas were imposed for Gaussian constraints
\r
2569 // already accumulated corrections: they must be subtracted from the constraint value.
\r
2570 if (IsConstraintWrtRef()) {
\r
2572 Double_t precal[AliITSAlignMille2Module::kMaxParTot];
\r
2573 Double_t refcal[AliITSAlignMille2Module::kMaxParTot];
\r
2574 for (int ip=AliITSAlignMille2Module::kMaxParTot;ip--;) {precal[ip]=0; refcal[ip] = 0.;}
\r
2576 // check if there was a reference delta provided for this module
\r
2577 AliAlignObjParams* parref = GetConstrRefObject(mod->GetName());
\r
2578 if (parref) parref->GetPars(refcal, refcal+3); // found reference delta
\r
2580 // extract already applied local corrections for this module
\r
2581 if (fPrealignment) {
\r
2583 AliAlignObjParams *preo = GetPrealignedObject(mod->GetName());
\r
2585 TGeoHMatrix preMat,tmpMat = *mod->GetMatrix(); // Delta_Glob * Delta_Glob_Par * M
\r
2586 preo->GetMatrix(preMat); // Delta_Glob
\r
2587 preMat.MultiplyLeft( &tmpMat.Inverse() ); // M^-1 * Delta_Glob_Par^-1 = (Delta_Glob_Par * M)^-1
\r
2588 tmpMat.MultiplyLeft( &preMat ); // (Delta_Glob_Par * M)^-1 * Delta_Glob * Delta_Glob_Par * M = Delta_loc
\r
2589 AliAlignObjParams algob;
\r
2590 algob.SetMatrix(tmpMat);
\r
2591 algob.GetPars(precal,precal+3); // local corrections for geometry
\r
2595 // subtract the contribution to constraint from precalibration
\r
2596 for (int ipar=cstr->GetNCoeffs();ipar--;) value += (refcal[ipar]-precal[ipar])*cstr->GetCoeff(ipar);
\r
2600 if (fUseGlobalDelta) mod->CalcDerivLocGlo(&jacobian[0][0]);
\r
2602 for (int ipar=cstr->GetNCoeffs();ipar--;) {
\r
2603 double coef = cstr->GetCoeff(ipar);
\r
2604 if (coef==0) continue;
\r
2606 if (!fUseGlobalDelta || ipar>= AliITSAlignMille2Module::kMaxParGeom) { //
\r
2607 // we are working with local params or if the given param is not related to geometry,
\r
2608 // apply the constraint directly
\r
2609 int parPos = mod->GetParOffset(ipar);
\r
2610 if (parPos<0) continue; // not in the fit
\r
2611 fGlobalDerivatives[parPos] += coef;
\r
2614 else { // we are working with global params, while the constraint is on local ones -> jacobian
\r
2615 for (int jpar=AliITSAlignMille2Module::kMaxParGeom;jpar--;) {
\r
2616 int parPos = mod->GetParOffset(jpar);
\r
2617 if (parPos<0) continue;
\r
2618 fGlobalDerivatives[parPos] += coef*jacobian[ipar][jpar];
\r
2623 if (nadded) AddConstraint(fGlobalDerivatives, value, sigma);
\r
2628 //________________________________________________________________________________________________________
\r
2629 void AliITSAlignMille2::ApplyPreConstraints()
\r
2631 // apply constriants which cannot be imposed after the fit
\r
2632 int nconstr = GetNConstraints();
\r
2633 for (int i=0;i<nconstr;i++) {
\r
2634 AliITSAlignMille2Constraint* cstr = GetConstraint(i);
\r
2636 if (cstr->GetType() == AliITSAlignMille2ConstrArray::kTypeGaussian) {
\r
2637 ApplyGaussianConstraint( (AliITSAlignMille2ConstrArray*)cstr);
\r
2641 if (cstr->GetType() == AliITSAlignMille2Constraint::kTypeMedian) continue; // post type constraint
\r
2643 if (!fUseGlobalDelta) continue; // mean/med constraints must be applied to global deltas
\r
2644 // apply constraint on the mean's before the fit
\r
2645 int imd = cstr->GetModuleID();
\r
2647 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
2648 UInt_t pattern = 0;
\r
2649 for (int ipar=mod->GetNParTot();ipar--;) {
\r
2650 if (!cstr->IncludesParam(ipar)) continue;
\r
2651 if (mod->GetParOffset(ipar)<0) continue; // parameter is not in the explicit fit -> post constraint
\r
2652 pattern |= 0x1<<ipar;
\r
2653 cstr->SetApplied(ipar);
\r
2655 ConstrainModuleSubUnits(imd,cstr->GetValue(),pattern);
\r
2658 else if (!PseudoParentsAllowed()) {
\r
2659 ConstrainOrphans(cstr->GetValue(),(UInt_t)cstr->GetPattern());
\r
2660 cstr->SetApplied(-1);
\r
2665 //________________________________________________________________________________________________________
\r
2666 void AliITSAlignMille2::ApplyPostConstraints()
\r
2668 // apply constraints which can be imposed after the fit
\r
2669 int nconstr = GetNConstraints();
\r
2670 Bool_t convGlo = kFALSE;
\r
2671 // check if there is something to do
\r
2673 for (int i=0;i<nconstr;i++) {
\r
2674 AliITSAlignMille2Constraint* cstr = GetConstraint(i);
\r
2675 if (cstr->GetType() == AliITSAlignMille2ConstrArray::kTypeGaussian) continue;
\r
2676 if (cstr->GetRemainingPattern() == 0) continue;
\r
2679 if (!ntodo) return;
\r
2681 if (!fUseGlobalDelta) { // need to convert to global params
\r
2682 ConvertParamsToGlobal();
\r
2686 for (int i=0;i<nconstr;i++) {
\r
2687 AliITSAlignMille2Constraint* cstr = GetConstraint(i);
\r
2688 if (cstr->GetType() == AliITSAlignMille2ConstrArray::kTypeGaussian) continue;
\r
2690 int imd = cstr->GetModuleID();
\r
2693 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
2694 UInt_t pattern = 0;
\r
2695 for (int ipar=mod->GetNParTot();ipar--;) {
\r
2696 if (cstr->IsApplied(ipar)) continue;
\r
2697 if (!cstr->IncludesParam(ipar)) continue;
\r
2698 if (!mod->IsFreeDOF(ipar)) continue; // parameter is fixed, will not apply constraint
\r
2699 pattern |= 0x1<<ipar;
\r
2700 cstr->SetApplied(ipar);
\r
2702 if (pattern) PostConstrainModuleSubUnits(cstr->GetType(),cstr->GetModuleID(),cstr->GetValue(),pattern);
\r
2705 else if (PseudoParentsAllowed()) {
\r
2706 UInt_t pattern = (UInt_t)cstr->GetRemainingPattern();
\r
2707 PostConstrainOrphans(cstr->GetType(),cstr->GetValue(),pattern);
\r
2708 cstr->SetApplied(-1);
\r
2711 // if there was a conversion, rewind it
\r
2712 if (convGlo) ConvertParamsToLocal();
\r
2716 //________________________________________________________________________________________________________
\r
2717 void AliITSAlignMille2::ConstrainModuleSubUnits(Int_t idm, Double_t val, UInt_t pattern)
\r
2719 // require that sum of modifications for the childs of this module is = val, i.e.
\r
2720 // the internal corrections moves the module as a whole by fixed value (0 by default).
\r
2721 // pattern is the bit pattern for the parameters to constrain
\r
2724 AliITSAlignMille2Module* mod = GetMilleModule(idm);
\r
2726 for (int ip=0;ip<kNParCh;ip++) {
\r
2727 if ( !((pattern>>ip)&0x1) /*|| !parent->IsFreeDOF(ip)*/) continue;
\r
2728 ResetLocalEquation();
\r
2730 for (int ich=mod->GetNChildren();ich--;) {
\r
2731 int idpar = ((AliITSAlignMille2Module*)mod->GetChild(ich))->GetParOffset(ip);
\r
2732 if (idpar<0) continue;
\r
2733 fGlobalDerivatives[idpar] = 1.0;
\r
2738 AddConstraint(fGlobalDerivatives,val);
\r
2739 AliInfo(Form("Constrained param %d for %d submodules of module #%d: %s",ip,nadd,idm,mod->GetName()));
\r
2745 //________________________________________________________________________________________________________
\r
2746 void AliITSAlignMille2::ConstrainOrphans(Double_t val, UInt_t pattern)
\r
2748 // require that median of the modifications for the supermodules which have no parents is = val, i.e.
\r
2749 // the corrections moves the whole setup by fixed value (0 by default) modulo the outliers.
\r
2750 // pattern is the bit pattern for the parameters to constrain
\r
2752 for (int ip=0;ip<kNParCh;ip++) {
\r
2754 if ( !((pattern>>ip)&0x1) ) continue;
\r
2755 ResetLocalEquation();
\r
2757 for (int imd=fNModules;imd--;) {
\r
2758 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
2759 if (mod->GetParent()) continue; // this is not an orphan
\r
2760 int idpar = mod->GetParOffset(ip);
\r
2761 if (idpar<0) continue;
\r
2762 fGlobalDerivatives[idpar] = 1.0;
\r
2766 AddConstraint(fGlobalDerivatives,val);
\r
2767 AliInfo(Form("Constrained param %d for %d orphan modules",ip,nadd));
\r
2774 //________________________________________________________________________________________________________
\r
2775 void AliITSAlignMille2::PostConstrainModuleSubUnits(Int_t type,Int_t idm, Double_t val, UInt_t pattern)
\r
2777 // require that median or mean of the modifications for the childs of this module is = val, i.e.
\r
2778 // the internal corrections moves the module as a whole by fixed value (0 by default)
\r
2779 // module the outliers.
\r
2780 // pattern is the bit pattern for the parameters to constrain
\r
2781 // The difference between the mean and the median will be transfered to the parent
\r
2783 AliITSAlignMille2Module* parent = GetMilleModule(idm);
\r
2784 int nc = parent->GetNChildren();
\r
2786 double *tmpArr = new double[nc];
\r
2788 for (int ip=0;ip<kNParCh;ip++) {
\r
2790 if ( !((pattern>>ip)&0x1) || !parent->IsFreeDOF(ip)) continue;
\r
2791 // compute the mean and median of the deltas
\r
2793 for (int ich=nc;ich--;) {
\r
2794 AliITSAlignMille2Module* child = parent->GetChild(ich);
\r
2795 // if (!child->IsFreeDOF(ip)) continue;
\r
2796 tmpArr[nfree++] = child->GetParVal(ip);
\r
2798 double median=0,mean=0;
\r
2799 for (int ic0=0;ic0<nfree;ic0++) {// order the deltas
\r
2800 mean += tmpArr[ic0];
\r
2801 for (int ic1=ic0+1;ic1<nfree;ic1++)
\r
2802 if (tmpArr[ic0]>tmpArr[ic1]) {double tv=tmpArr[ic0]; tmpArr[ic0]=tmpArr[ic1]; tmpArr[ic1]=tv;}
\r
2805 int kmed = nfree/2;
\r
2806 median = (tmpArr[kmed]+tmpArr[nfree-kmed-1])/2.;
\r
2807 if (nfree>0) mean /= nfree;
\r
2809 double shift = val - (type==AliITSAlignMille2Constraint::kTypeMean ? mean : median);
\r
2811 for (int ich=nc;ich--;) {
\r
2812 AliITSAlignMille2Module* child = parent->GetChild(ich);
\r
2813 // if (!child->IsFreeDOF(ip)) continue;
\r
2814 child->SetParVal(ip, child->GetParVal(ip) + shift);
\r
2818 parent->SetParVal(ip, parent->GetParVal(ip) - shift);
\r
2819 AliInfo(Form("%s constraint: added %f shift to param[%d] of %d children of module %d: %s",
\r
2820 type==AliITSAlignMille2Constraint::kTypeMean ? "MEAN" : "MEDIAN",shift,
\r
2821 ip,npc,idm,parent->GetName()));
\r
2828 //________________________________________________________________________________________________________
\r
2829 void AliITSAlignMille2::PostConstrainOrphans(Int_t type,Double_t val, UInt_t pattern)
\r
2831 // require that median or mean of modifications for the supermodules which have no parents is = val, i.e.
\r
2832 // the corrections moves the whole setup by fixed value (0 by default).
\r
2833 // pattern is the bit pattern for the parameters to constrain
\r
2835 int nc = fNModules;
\r
2838 for (int ich=nc;ich--;) if (!GetMilleModule(ich)->GetParent()) norph ++;
\r
2839 if (!norph) return;
\r
2840 double *tmpArr = new double[norph];
\r
2842 for (int ip=0;ip<kNParCh;ip++) {
\r
2844 if ( !((pattern>>ip)&0x1)) continue;
\r
2845 // compute the mean and median of the deltas
\r
2847 for (int ich=nc;ich--;) {
\r
2848 AliITSAlignMille2Module* child = GetMilleModule(ich);
\r
2849 // if (child->GetParent() || !child->IsFreeDOF(ip)) continue;
\r
2850 if (child->GetParent()) continue;
\r
2851 tmpArr[nfree++] = child->GetParVal(ip);
\r
2853 double median=0,mean=0;
\r
2854 for (int ic0=0;ic0<nfree;ic0++) {// order the deltas
\r
2855 mean += tmpArr[ic0];
\r
2856 for (int ic1=ic0+1;ic1<nfree;ic1++)
\r
2857 if (tmpArr[ic0]>tmpArr[ic1]) {double tv=tmpArr[ic0]; tmpArr[ic0]=tmpArr[ic1]; tmpArr[ic1]=tv;}
\r
2860 int kmed = nfree/2;
\r
2861 median = (tmpArr[kmed]+tmpArr[nfree-kmed-1])/2.;
\r
2862 if (nfree>0) mean /= nfree;
\r
2864 double shift = val - (type==AliITSAlignMille2Constraint::kTypeMean ? mean : median);
\r
2866 for (int ich=nc;ich--;) {
\r
2867 AliITSAlignMille2Module* child = GetMilleModule(ich);
\r
2868 // if (child->GetParent() || !child->IsFreeDOF(ip)) continue;
\r
2869 if (child->GetParent()) continue;
\r
2870 child->SetParVal(ip, child->GetParVal(ip) + shift);
\r
2874 AliInfo(Form("%s constraint: added %f shift to param[%d] of %d orphan modules",
\r
2875 type==AliITSAlignMille2Constraint::kTypeMean ? "MEAN" : "MEDIAN",shift,
\r
2882 //________________________________________________________________________________________________________
\r
2883 Bool_t AliITSAlignMille2::IsParModConstrained(const AliITSAlignMille2Module* mod,Int_t par, Bool_t &meanmed, Bool_t &gaussian) const
\r
2885 // check if par of the module participates in some constraint, and set the flag for their types
\r
2886 meanmed = gaussian = kFALSE;
\r
2888 if ( mod->IsParConstrained(par) ) gaussian = kTRUE; // direct constraint on this param
\r
2890 for (int icstr=GetNConstraints();icstr--;) {
\r
2891 AliITSAlignMille2Constraint* cstr = GetConstraint(icstr);
\r
2893 if (!cstr->IncludesModPar(mod,par)) continue;
\r
2894 if (cstr->GetType()==AliITSAlignMille2ConstrArray::kTypeGaussian) gaussian = kTRUE;
\r
2895 else meanmed = kTRUE;
\r
2897 if (meanmed && gaussian) break; // no sense to check further
\r
2900 return meanmed||gaussian;
\r
2903 //________________________________________________________________________________________________________
\r
2904 Bool_t AliITSAlignMille2::IsParModFamilyVaried(const AliITSAlignMille2Module* mod,Int_t par,Int_t depth) const
\r
2906 // check if parameter par is varied for this module or its children up to the level depth
\r
2907 if (depth<0) return kFALSE;
\r
2908 if (mod->GetParOffset(par)>=0) return kTRUE;
\r
2909 for (int icld=mod->GetNChildren();icld--;) {
\r
2910 AliITSAlignMille2Module* child = mod->GetChild(icld);
\r
2911 if (IsParModFamilyVaried(child, par, depth-1)) return kTRUE;
\r
2918 //________________________________________________________________________________________________________
\r
2919 Bool_t AliITSAlignMille2::IsParFamilyFree(AliITSAlignMille2Module* mod,Int_t par,Int_t depth) const
\r
2921 // check if parameter par is varied and is not subjected to gaussian constraint for the children up to the level depth
\r
2922 if (depth<0) return kTRUE;
\r
2923 for (int icld=mod->GetNChildren();icld--;) {
\r
2924 AliITSAlignMille2Module* child = mod->GetChild(icld);
\r
2925 //if (child->GetParOffset(par)<0) continue; // fixed
\r
2926 Bool_t cstMM=kFALSE,cstGS=kFALSE;
\r
2927 // does this child have gaussian constraint ?
\r
2928 if (!IsParModConstrained(child,par,cstMM,cstGS) || !cstGS ) return kTRUE;
\r
2929 // check its children
\r
2930 if (!IsParFamilyFree(child,par,depth-1)) return kTRUE;
\r
2937 //________________________________________________________________________________________________________
\r
2938 Bool_t AliITSAlignMille2::IsParFamilyFree(const AliITSAlignMille2Module* mod,Int_t par,Int_t depth) const
\r
2940 // check if parameter par is varied and is not subjected to gaussian constraint for the children up to the level depth
\r
2941 if (depth<0) return kFALSE;
\r
2942 for (int icld=mod->GetNChildren();icld--;) {
\r
2943 AliITSAlignMille2Module* child = mod->GetChild(icld);
\r
2944 //if (child->GetParOffset(par)<0) continue; // fixed
\r
2945 Bool_t cstMM=kFALSE,cstGS=kFALSE;
\r
2946 // does this child have gaussian constraint ?
\r
2947 if (!IsParModConstrained(child,par,cstMM,cstGS) || !cstGS ) return kTRUE;
\r
2948 // check its children
\r
2949 if (IsParFamilyFree(child,par,depth-1)) return kTRUE;
\r
2955 //________________________________________________________________________________________________________
\r
2956 Double_t AliITSAlignMille2::GetTDriftSDD() const
\r
2958 // obtain drift time corrected for t0
\r
2959 double t = fCluster.GetDriftTime();
\r
2960 return t - fDriftTime0[ fCluster.GetUniqueID() ];
\r
2963 //________________________________________________________________________________________________________
\r
2964 Double_t AliITSAlignMille2::GetVDriftSDD() const
\r
2966 // obtain corrected drift speed
\r
2967 return fDriftSpeed[ fCluster.GetUniqueID() ];
\r
2970 //________________________________________________________________________________________________________
\r
2971 Bool_t AliITSAlignMille2::FixedOrphans() const
\r
2973 // are there fixed modules with no parent (normally in such a case
\r
2974 // the constraints on the orphans should not be applied
\r
2975 if (!IsConfigured()) {
\r
2976 AliInfo("Still not configured");
\r
2979 for (int i=0;i<fNModules;i++) {
\r
2980 AliITSAlignMille2Module* md = GetMilleModule(i);
\r
2981 if (md->GetParent()==0 && md->GetNParFree()==0) return kTRUE;
\r
2986 //________________________________________________________________________________________________________
\r
2987 void AliITSAlignMille2::ConvertParamsToGlobal()
\r
2989 // convert params in local frame to global one
\r
2990 double pars[AliITSAlignMille2Module::kMaxParGeom];
\r
2991 for (int imd=fNModules;imd--;) {
\r
2992 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
2993 if (mod->GeomParamsGlobal()) continue;
\r
2994 mod->GetGeomParamsGlo(pars);
\r
2995 mod->SetParVals(pars,AliITSAlignMille2Module::kMaxParGeom);
\r
2996 mod->SetGeomParamsGlobal(kTRUE);
\r
3000 //________________________________________________________________________________________________________
\r
3001 void AliITSAlignMille2::ConvertParamsToLocal()
\r
3003 // convert params in global frame to local one
\r
3004 double pars[AliITSAlignMille2Module::kMaxParGeom];
\r
3005 for (int imd=fNModules;imd--;) {
\r
3006 AliITSAlignMille2Module* mod = GetMilleModule(imd);
\r
3007 if (!mod->GeomParamsGlobal()) continue;
\r
3008 mod->GetGeomParamsLoc(pars);
\r
3009 mod->SetParVals(pars,AliITSAlignMille2Module::kMaxParGeom);
\r
3010 mod->SetGeomParamsGlobal(kFALSE);
\r