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1/**************************************************************************
2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/* $Id$ */
17
18//-----------------------------------------------------------------------------
19/// \class AliITSAlignMille
20/// Alignment class for the ALICE ITS detector
21///
22/// ITS specific alignment class which interface to AliMillepede.
23/// For each track ProcessTrack calculates the local and global derivatives
24/// at each hit and fill the corresponding local equations. Provide methods for
25/// fixing or constraining detection elements for best results.
26///
27/// \author M. Lunardon (thanks to J. Castillo)
28//-----------------------------------------------------------------------------
29
30#include <TF1.h>
31#include <TFile.h>
32#include <TClonesArray.h>
33#include <TGraph.h>
34#include <TMath.h>
35#include <TGraphErrors.h>
36
37#include "AliITSAlignMilleModule.h"
38#include "AliITSAlignMille.h"
39#include "AliITSAlignMilleData.h"
40#include "AliITSgeomTGeo.h"
41#include "AliGeomManager.h"
42#include "AliMillepede.h"
43#include "AliTrackPointArray.h"
44#include "AliAlignObjParams.h"
45#include "AliLog.h"
46#include <TSystem.h>
47#include "AliTrackFitterRieman.h"
48
49/// \cond CLASSIMP
50ClassImp(AliITSAlignMille)
51/// \endcond
52
53Int_t AliITSAlignMille::fgNDetElem = ITSMILLENDETELEM;
54Int_t AliITSAlignMille::fgNParCh = ITSMILLENPARCH;
55
56AliITSAlignMille::AliITSAlignMille(const Char_t *configFilename, Bool_t initmille)
57 : TObject(),
58 fMillepede(0),
59 fStartFac(16.),
60 fResCutInitial(100.),
61 fResCut(100.),
62 fNGlobal(ITSMILLENDETELEM*ITSMILLENPARCH),
63 fNLocal(4),
64 fNStdDev(ITSMILLENSTDEV),
65 fIsMilleInit(kFALSE),
66 fParSigTranslations(0.0100),
67 fParSigRotations(0.1),
68 fTrack(NULL),
69 fCluster(),
70 fGlobalDerivatives(NULL),
71 fSigmaXfactor(1.0),
72 fSigmaZfactor(1.0),
73 fTempAlignObj(NULL),
74 fDerivativeXLoc(0),
75 fDerivativeZLoc(0),
76 fMinNPtsPerTrack(3),
77 fInitTrackParamsMeth(1),
78 fProcessedPoints(NULL),
79 fTotBadLocEqPoints(0),
80 fRieman(NULL),
81 fRequirePoints(kFALSE),
82 fTempExcludedModule(-1),
83 fGeometryFileName("geometry.root"),
84 fPreAlignmentFileName(""),
85 fGeoManager(0),
86 fCurrentModuleIndex(0),
87 fCurrentModuleInternalIndex(0),
88 fCurrentSensVolIndex(0),
89 fNModules(0),
90 fUseLocalShifts(kTRUE),
91 fUseSuperModules(kFALSE),
92 fUsePreAlignment(kFALSE),
93 fUseSortedTracks(kTRUE),
94 fBOn(kFALSE),
95 fBField(0.0),
96 fNSuperModules(0),
97 fCurrentModuleHMatrix(NULL),
98 fIsConfigured(kFALSE),
99 fBug(0)
100{
101 /// main constructor that takes input from configuration file
102
103 fMillepede = new AliMillepede();
104 fGlobalDerivatives = new Double_t[fNGlobal];
105
106 for (Int_t i=0; i<ITSMILLENDETELEM*2; i++) {
107 fPreAlignQF[i]=-1;
108 fSensVolSigmaXfactor[i]=1.0;
109 fSensVolSigmaZfactor[i]=1.0;
110 }
111
112 for (Int_t i=0; i<6; i++) {
113 fNReqLayUp[i]=0;
114 fNReqLayDown[i]=0;
115 fNReqLay[i]=0;
116 }
117 for (Int_t i=0; i<3; i++) {
118 fNReqDetUp[i]=0;
119 fNReqDetDown[i]=0;
120 fNReqDet[i]=0;
121 }
122
123 Int_t lc=LoadConfig(configFilename);
124 if (lc) {
125 AliInfo(Form("Error %d loading configuration from %s",lc,configFilename));
126 }
127 else {
128 fIsConfigured=kTRUE;
129 if (initmille && fNGlobal<20000) {
130 AliInfo(Form("Initializing Millepede with %d gpar, %d lpar and %d stddev ...",fNGlobal, fNLocal, fNStdDev));
131 Init(fNGlobal, fNLocal, fNStdDev);
132 ResetLocalEquation();
133 AliInfo("Parameters initialized to zero");
134 }
135 else {
136 AliInfo("Millepede has not been initialized ... ");
137 }
138 }
139
140 if (fNModules) {
141 fProcessedPoints=new Int_t[fNModules];
142 for (Int_t ipp=0; ipp<fNModules; ipp++) fProcessedPoints[ipp]=0;
143 }
144}
145
146AliITSAlignMille::~AliITSAlignMille() {
147 /// Destructor
148 if (fMillepede) delete fMillepede;
149 delete [] fGlobalDerivatives;
150 for (int i=0; i<fNModules; i++) delete fMilleModule[i];
151 for (int i=0; i<fNSuperModules; i++) delete fSuperModule[i];
152 if (fNModules) delete [] fProcessedPoints;
153 if (fRieman) delete fRieman;
154}
155
156///////////////////////////////////////////////////////////////////////
157Int_t AliITSAlignMille::LoadConfig(const Char_t *cfile) {
158 /// return 0 if success
159 /// 1 if error in module index or voluid
160
161 FILE *pfc=fopen(cfile,"r");
162 if (!pfc) return -1;
163
164 Char_t st[200],st2[200];
165 Char_t tmp[100];
166 Int_t idx,itx,ity,itz,ith,ips,iph;
167 Float_t f1,f2;
168 UShort_t voluid;
169 Int_t nmod=0;
170
171 while (fgets(st,200,pfc)) {
172
173 // skip comments
174 for (int i=0; i<int(strlen(st)); i++) {
175 if (st[i]=='#') st[i]=0;
176 }
177
178 if (strstr(st,"GEOMETRY_FILE")) {
179 sscanf(st,"%s %s",tmp,st2);
180 if (gSystem->AccessPathName(st2)) {
181 AliInfo("*** WARNING! *** geometry file not found! ");
182 return -1;
183 }
184 fGeometryFileName=st2;
185 InitGeometry();
186 }
187
188 if (strstr(st,"PREALIGNMENT_FILE")) {
189 sscanf(st,"%s %s",tmp,st2);
190 if (gSystem->AccessPathName(st2)) {
191 AliInfo("*** WARNING! *** prealignment file not found! ");
192 return -1;
193 }
194 fPreAlignmentFileName=st2;
195 itx=ApplyToGeometry();
196 if (itx) {
197 AliInfo(Form("*** WARNING! *** error %d reading prealignment file! ",itx));
198 return -6;
199 }
200 }
201
202 if (strstr(st,"SUPERMODULE_FILE")) {
203 sscanf(st,"%s %s",tmp,st2);
204 if (gSystem->AccessPathName(st2)) {
205 AliInfo("*** WARNING! *** supermodule file not found! ");
206 return -1;
207 }
208 if (LoadSuperModuleFile(st2)) return -1;
209 }
210
211 if (strstr(st,"SET_B_FIELD")) {
212 sscanf(st,"%s %f",tmp,&f1);
213 if (f1>0) {
214 fBField = f1;
215 fBOn = kTRUE;
216 fNLocal = 5; // helices
217 fRieman = new AliTrackFitterRieman();
218 }
219 else {
220 fBField = 0.0;
221 fBOn = kFALSE;
222 fNLocal = 4;
223 }
224 }
225
226 if (strstr(st,"SET_PARSIG_TRA")) {
227 sscanf(st,"%s %f",tmp,&f1);
228 fParSigTranslations=f1;
229 }
230
231 if (strstr(st,"SET_PARSIG_ROT")) {
232 sscanf(st,"%s %f",tmp,&f1);
233 fParSigRotations=f1;
234 }
235
236 if (strstr(st,"SET_NSTDDEV")) {
237 sscanf(st,"%s %d",tmp,&idx);
238 fNStdDev=idx;
239 }
240
241 if (strstr(st,"SET_RESCUT_INIT")) {
242 sscanf(st,"%s %f",tmp,&f1);
243 fResCutInitial=f1;
244 }
245
246 if (strstr(st,"SET_RESCUT_OTHER")) {
247 sscanf(st,"%s %f",tmp,&f1);
248 fResCut=f1;
249 }
250
251 if (strstr(st,"SET_LOCALSIGMAFACTOR")) {
252 sscanf(st,"%s %f %f",tmp,&f1,&f2);
253 if (f1>0 && f2>0) {
254 fSigmaXfactor=f1;
255 fSigmaZfactor=f2;
256 }
257 }
258
259 if (strstr(st,"SET_STARTFAC")) {
260 sscanf(st,"%s %f",tmp,&f1);
261 fStartFac=f1;
262 }
263
264 if (strstr(st,"REQUIRE_POINT")) {
265 // syntax: REQUIRE_POINT where ndet updw nreqpts
266 // where = LAYER or DETECTOR
267 // ndet = detector number: 1-6 for LAYER and 1-3 for DETECTOR (SPD=1, SDD=2, SSD=3)
268 // updw = 1 for Y>0, -1 for Y<0, 0 if not specified
269 // nreqpts = minimum number of points of that type
270 sscanf(st,"%s %s %d %d %d",tmp,st2,&itx,&ity,&itz);
271 itx--;
272 if (strstr(st2,"LAYER")) {
273 if (itx<0 || itx>5) return -7;
274 if (ity>0) fNReqLayUp[itx]=itz;
275 else if (ity<0) fNReqLayDown[itx]=itz;
276 else fNReqLay[itx]=itz;
277 fRequirePoints=kTRUE;
278 }
279 else if (strstr(st2,"DETECTOR")) { // DETECTOR
280 if (itx<0 || itx>2) return -7;
281 if (ity>0) fNReqDetUp[itx]=itz;
282 else if (ity<0) fNReqDetDown[itx]=itz;
283 else fNReqDet[itx]=itz;
284 fRequirePoints=kTRUE;
285 }
286 }
287
288
289 if (strstr(st,"SET_LOCAL_SHIFTS")) { // only enabled mode...
290 fUseLocalShifts = kTRUE;
291 }
292
293 if (strstr(st,"MODULE_INDEX")) { // works only for sensitive modules
294 f1=0; f2=0;
295 sscanf(st,"%s %d %d %d %d %d %d %d %f %f",tmp,&idx,&itx,&ity,&itz,&iph,&ith,&ips,&f1,&f2);
296 if (idx<0 || idx>2197) return 1; // bad index
297 voluid=GetModuleVolumeID(idx);
298 if (!voluid || voluid>14300) return 1; // bad index
299 fModuleIndex[nmod]=idx;
300 fModuleVolumeID[nmod]=voluid;
301 fFreeParam[nmod][0]=itx;
302 fFreeParam[nmod][1]=ity;
303 fFreeParam[nmod][2]=itz;
304 fFreeParam[nmod][3]=iph;
305 fFreeParam[nmod][4]=ith;
306 fFreeParam[nmod][5]=ips;
307 fMilleModule[nmod] = new AliITSAlignMilleModule(voluid);
308 if (f1>0) fSensVolSigmaXfactor[idx]=f1;
309 if (f2>0) fSensVolSigmaZfactor[idx]=f2;
310 nmod++;
311 }
312
313 if (strstr(st,"MODULE_VOLUID")) {
314 f1=0; f2=0;
315 sscanf(st,"%s %d %d %d %d %d %d %d %f %f",tmp,&idx,&itx,&ity,&itz,&iph,&ith,&ips,&f1,&f2);
316 voluid=UShort_t(idx);
317 if (voluid>14335 && fUseSuperModules) { // custom supermodule
318 int ism=-1;
319 for (int j=0; j<fNSuperModules; j++) {
320 if (voluid==fSuperModule[j]->GetVolumeID()) ism=j;
321 }
322 if (ism<0) return -1; // bad volid
323 fModuleIndex[nmod]=fSuperModule[ism]->GetIndex();
324 fModuleVolumeID[nmod]=voluid;
325 fFreeParam[nmod][0]=itx;
326 fFreeParam[nmod][1]=ity;
327 fFreeParam[nmod][2]=itz;
328 fFreeParam[nmod][3]=iph;
329 fFreeParam[nmod][4]=ith;
330 fFreeParam[nmod][5]=ips;
331 fMilleModule[nmod] = new AliITSAlignMilleModule(*fSuperModule[ism]);
332 if (f1>0) {
333 for (int kk=0; kk<fMilleModule[nmod]->GetNSensitiveVolumes(); kk++) {
334 idx=AliITSAlignMilleModule::GetIndexFromVolumeID(fMilleModule[nmod]->GetSensitiveVolumeVolumeID()[kk]);
335 if (idx>=0) fSensVolSigmaXfactor[idx]=f1;
336 }
337 }
338 if (f2>0) {
339 for (int kk=0; kk<fMilleModule[nmod]->GetNSensitiveVolumes(); kk++) {
340 idx=AliITSAlignMilleModule::GetIndexFromVolumeID(fMilleModule[nmod]->GetSensitiveVolumeVolumeID()[kk]);
341 if (idx>=0) fSensVolSigmaZfactor[idx]=f2;
342 }
343 } nmod++;
344 }
345 else { // sensitive volume
346 idx=GetModuleIndex(voluid);
347 if (idx<0 || idx>2197) return 1; // bad index
348 fModuleIndex[nmod]=idx;
349 fModuleVolumeID[nmod]=voluid;
350 fFreeParam[nmod][0]=itx;
351 fFreeParam[nmod][1]=ity;
352 fFreeParam[nmod][2]=itz;
353 fFreeParam[nmod][3]=iph;
354 fFreeParam[nmod][4]=ith;
355 fFreeParam[nmod][5]=ips;
356 fMilleModule[nmod] = new AliITSAlignMilleModule(voluid);
357 if (f1>0) fSensVolSigmaXfactor[idx]=f1;
358 if (f2>0) fSensVolSigmaZfactor[idx]=f2;
359 nmod++;
360 }
361 }
362 //----------
363
364 } // end while
365
366 fNModules = nmod;
367 fNGlobal = fNModules*fgNParCh;
368
369 fclose(pfc);
370 return 0;
371}
372
373void AliITSAlignMille::SetRequiredPoint(Char_t* where, Int_t ndet, Int_t updw, Int_t nreqpts)
374{
375 // set minimum number of points in specific detector or layer
376 // where = LAYER or DETECTOR
377 // ndet = detector number: 1-6 for LAYER and 1-3 for DETECTOR (SPD=1, SDD=2, SSD=3)
378 // updw = 1 for Y>0, -1 for Y<0, 0 if not specified
379 // nreqpts = minimum number of points of that type
380 ndet--;
381 if (strstr(where,"LAYER")) {
382 if (ndet<0 || ndet>5) return;
383 if (updw>0) fNReqLayUp[ndet]=nreqpts;
384 else if (updw<0) fNReqLayDown[ndet]=nreqpts;
385 else fNReqLay[ndet]=nreqpts;
386 fRequirePoints=kTRUE;
387 }
388 else if (strstr(where,"DETECTOR")) {
389 if (ndet<0 || ndet>2) return;
390 if (updw>0) fNReqDetUp[ndet]=nreqpts;
391 else if (updw<0) fNReqDetDown[ndet]=nreqpts;
392 else fNReqDet[ndet]=nreqpts;
393 fRequirePoints=kTRUE;
394 }
395}
396
397Int_t AliITSAlignMille::GetModuleIndex(const Char_t *symname) {
398 /// index from symname
399 if (!symname) return -1;
400 for (Int_t i=0; i<2198; i++) {
401 if (!strcmp(symname,AliITSgeomTGeo::GetSymName(i))) return i;
402 }
403 return -1;
404}
405
406Int_t AliITSAlignMille::GetModuleIndex(UShort_t voluid) {
407 /// index from volume ID
408 AliGeomManager::ELayerID lay = AliGeomManager::VolUIDToLayer(voluid);
409 if (lay<1|| lay>6) return -1;
410 Int_t idx=Int_t(voluid)-2048*lay;
411 if (idx>=AliGeomManager::LayerSize(lay)) return -1;
412 for (Int_t ilay=1; ilay<lay; ilay++)
413 idx += AliGeomManager::LayerSize(ilay);
414 return idx;
415}
416
417UShort_t AliITSAlignMille::GetModuleVolumeID(const Char_t *symname) {
418 /// volume ID from symname
419 /// works for sensitive volumes only
420 if (!symname) return 0;
421
422 for (UShort_t voluid=2000; voluid<13300; voluid++) {
423 Int_t modId;
424 AliGeomManager::ELayerID layerId = AliGeomManager::VolUIDToLayer(voluid,modId);
425 if (layerId>0 && layerId<7 && modId>=0 && modId<AliGeomManager::LayerSize(layerId)) {
426 if (!strcmp(symname,AliGeomManager::SymName(layerId,modId))) return voluid;
427 }
428 }
429
430 return 0;
431}
432
433UShort_t AliITSAlignMille::GetModuleVolumeID(Int_t index) {
434 /// volume ID from index
435 if (index<0) return 0;
436 if (index<2198)
437 return GetModuleVolumeID(AliITSgeomTGeo::GetSymName(index));
438 else {
439 for (int i=0; i<fNSuperModules; i++) {
440 if (fSuperModule[i]->GetIndex()==index) return fSuperModule[i]->GetVolumeID();
441 }
442 }
443 return 0;
444}
445
446void AliITSAlignMille::InitGeometry() {
447 /// initialize geometry
448 AliGeomManager::LoadGeometry(fGeometryFileName.Data());
449 fGeoManager = AliGeomManager::GetGeometry();
450 if (!fGeoManager) {
451 AliInfo("Couldn't initialize geometry");
452 return;
453 }
454 // temporary align object, just use the rotation...
455 fTempAlignObj=new AliAlignObjParams;
456}
457
458void AliITSAlignMille::Init(Int_t nGlobal, /* number of global paramers */
459 Int_t nLocal, /* number of local parameters */
460 Int_t nStdDev /* std dev cut */ )
461{
462 /// Initialization of AliMillepede. Fix parameters, define constraints ...
463 fMillepede->InitMille(nGlobal,nLocal,nStdDev,fResCut,fResCutInitial);
464 fIsMilleInit = kTRUE;
465
466 /// Fix non free parameters
467 for (Int_t i=0; i<fNModules; i++) {
468 for (Int_t j=0; j<ITSMILLENPARCH; j++) {
469 if (!fFreeParam[i][j]) FixParameter(i*ITSMILLENPARCH+j,0.0);
470 else {
471 // pepopepo: da verificare il settaggio delle sigma, ma forse va bene...
472 Double_t parsig=0;
473 if (j<3) parsig=fParSigTranslations; // translations (0.0100 cm)
474 else parsig=fParSigRotations; // rotations (1/10 deg)
475 FixParameter(i*ITSMILLENPARCH+j,parsig);
476 }
477 }
478 }
479
480
481// // Set iterations
482 if (fStartFac>1) fMillepede->SetIterations(fStartFac);
483}
484
485
486void AliITSAlignMille::AddConstraint(Double_t *par, Double_t value) {
487 /// Constrain equation defined by par to value
488 if (!fIsMilleInit) {
489 AliInfo("Millepede has not been initialized!");
490 return;
491 }
492 fMillepede->SetGlobalConstraint(par, value);
493 AliInfo("Adding constraint");
494}
495
496void AliITSAlignMille::InitGlobalParameters(Double_t *par) {
497 /// Initialize global parameters with par array
498 if (!fIsMilleInit) {
499 AliInfo("Millepede has not been initialized!");
500 return;
501 }
502 fMillepede->SetGlobalParameters(par);
503 AliInfo("Init Global Parameters");
504}
505
506void AliITSAlignMille::FixParameter(Int_t iPar, Double_t value) {
507 /// Parameter iPar is encourage to vary in [-value;value].
508 /// If value == 0, parameter is fixed
509 if (!fIsMilleInit) {
510 AliInfo("Millepede has not been initialized!");
511 return;
512 }
513 fMillepede->SetParSigma(iPar, value);
514 if (value==0) AliInfo(Form("Parameter %i Fixed", iPar));
515}
516
517void AliITSAlignMille::ResetLocalEquation()
518{
519 /// Reset the derivative vectors
520 for(int i=0; i<fNLocal; i++) {
521 fLocalDerivatives[i] = 0.0;
522 }
523 for(int i=0; i<fNGlobal; i++) {
524 fGlobalDerivatives[i] = 0.0;
525 }
526}
527
528// newpep
529Int_t AliITSAlignMille::ApplyToGeometry() {
530 /// apply starting realignment to ideal geometry
531 if(!AliGeomManager::GetGeometry()) return -1;
532
533 TFile *pref = new TFile(fPreAlignmentFileName.Data());
534 if (!pref->IsOpen()) return -2;
535 TClonesArray *prea=(TClonesArray*)pref->Get("ITSAlignObjs");
536 if (!prea) return -3;
537 Int_t nprea=prea->GetEntriesFast();
538 AliInfo(Form("Array of input misalignments with %d entries",nprea));
539
540 AliGeomManager::ApplyAlignObjsToGeom(*prea); // apply all levels of objs
541
542 // set prealignment factor if defined...
543 for (int ix=0; ix<nprea; ix++) {
544 AliAlignObjParams *preo=(AliAlignObjParams*) prea->UncheckedAt(ix);
545 Int_t index=AliITSAlignMilleModule::GetIndexFromVolumeID(preo->GetVolUID());
546 if (index>=0) {
547 fPreAlignQF[index] = (int) preo->GetUniqueID();
548 //printf("index=%d QF=%d\n",index,preo->GetUniqueID());
549 }
550 //if (!preo->ApplyToGeometry()) return -4;
551 }
552 pref->Close();
553 delete pref;
554
555 fUsePreAlignment = kTRUE;
556 return 0;
557}
558// endnewpep
559
560Int_t AliITSAlignMille::GetPreAlignmentQualityFactor(Int_t index) const {
561 /// works for sensitive volumes
562 if (!fUsePreAlignment || index<0 || index>2197) return -1;
563 return fPreAlignQF[index];
564}
565
566AliTrackPointArray *AliITSAlignMille::PrepareTrack(AliTrackPointArray *atp) {
567 /// create a new AliTrackPointArray keeping only defined modules
568 /// move points according to a given prealignment, if any
569 /// sort alitrackpoints w.r.t. global Y direction, if selected
570
571 AliTrackPointArray *atps=NULL;
572 Int_t idx[20];
573 Int_t npts=atp->GetNPoints();
574
575 /// checks if AliTrackPoints belong to defined modules
576 Int_t ngoodpts=0;
577 Int_t intidx[20];
578
579 for (int j=0; j<npts; j++) {
580 intidx[j] = IsContained(atp->GetVolumeID()[j]);
581 if (intidx[j]>=0) ngoodpts++;
582 }
583 AliDebug(3,Form("Number of points in defined modules: %d",ngoodpts));
584
585 // reject track if not enough points are left
586 if (ngoodpts<fMinNPtsPerTrack) {
587 AliInfo("Track with not enough points!");
588 return NULL;
589 }
590
591 AliTrackPoint p;
592 // check points in specific places
593 if (fRequirePoints) {
594 Int_t nlayup[6],nlaydown[6],nlay[6];
595 Int_t ndetup[3],ndetdown[3],ndet[3];
596 for (Int_t j=0; j<6; j++) {nlayup[j]=0; nlaydown[j]=0; nlay[j]=0;}
597 for (Int_t j=0; j<3; j++) {ndetup[j]=0; ndetdown[j]=0; ndet[j]=0;}
598
599 for (int i=0; i<npts; i++) {
600 // skip not defined points
601 if (intidx[i]<0) continue;
602 Float_t xx=atp->GetX()[i];
603 Float_t yy=atp->GetY()[i];
604 Float_t r=TMath::Sqrt(xx*xx + yy*yy);
605 int lay=-1;
606 if (r<5) lay=0;
607 else if (r>5 && r<10) lay=1;
608 else if (r>10 && r<18) lay=2;
609 else if (r>18 && r<30) lay=3;
610 else if (r>30 && r<40) lay=4;
611 else if (r>40) lay=5;
612 if (lay<0) continue;
613 int det=lay/2;
614 //printf("Point %d - x=%f y=%f R=%f lay=%d det=%d\n",i,xx,yy,r,lay,det);
615
616 if (yy>=0.0) { // UP point
617 nlayup[lay]++;
618 nlay[lay]++;
619 ndetup[det]++;
620 ndet[det]++;
621 }
622 else {
623 nlaydown[lay]++;
624 nlay[lay]++;
625 ndetdown[det]++;
626 ndet[det]++;
627 }
628 }
629
630 // checks minimum values
631 Bool_t isok=kTRUE;
632 for (Int_t j=0; j<6; j++) {
633 if (nlayup[j]<fNReqLayUp[j]) isok=kFALSE;
634 if (nlaydown[j]<fNReqLayDown[j]) isok=kFALSE;
635 if (nlay[j]<fNReqLay[j]) isok=kFALSE;
636 }
637 for (Int_t j=0; j<3; j++) {
638 if (ndetup[j]<fNReqDetUp[j]) isok=kFALSE;
639 if (ndetdown[j]<fNReqDetDown[j]) isok=kFALSE;
640 if (ndet[j]<fNReqDet[j]) isok=kFALSE;
641 }
642 if (!isok) {
643 AliDebug(2,Form("Track does not meet all location point requirements!"));
644 return NULL;
645 }
646 }
647
648 // build a new track with (sorted) (prealigned) good points
649 atps=new AliTrackPointArray(ngoodpts);
650
651 for (int i=0; i<npts; i++) idx[i]=i;
652 // sort track if required
653 if (fUseSortedTracks) TMath::Sort(npts,atp->GetY(),idx); // sort descending...
654
655 Int_t npto=0;
656 for (int i=0; i<npts; i++) {
657 // skip not defined points
658 if (intidx[idx[i]]<0) continue;
659 atp->GetPoint(p,idx[i]);
660
661 // prealign point if required
662 // get IDEAL matrix
663 TGeoHMatrix *svOrigMatrix = fMilleModule[intidx[idx[i]]]->GetSensitiveVolumeOrigGlobalMatrix(p.GetVolumeID());
664 // get back real local coordinates: use OriginalGlobalMatrix because AliTrackPoints were written
665 // with idel geometry
666 Double_t pg[3],pl[3];
667 pg[0]=p.GetX();
668 pg[1]=p.GetY();
669 pg[2]=p.GetZ();
670 AliDebug(3,Form("Global coordinates of measured point : X=%f Y=%f Z=%f \n",pg[0],pg[1],pg[2]));
671 svOrigMatrix->MasterToLocal(pg,pl);
672
673 AliDebug(3,Form("Local coordinates of measured point : X=%f Y=%f Z=%f \n",pl[0],pl[1],pl[2]));
674
675 // update covariance matrix
676 TGeoHMatrix hcov;
677 Double_t hcovel[9];
678 hcovel[0]=double(p.GetCov()[0]);
679 hcovel[1]=double(p.GetCov()[1]);
680 hcovel[2]=double(p.GetCov()[2]);
681 hcovel[3]=double(p.GetCov()[1]);
682 hcovel[4]=double(p.GetCov()[3]);
683 hcovel[5]=double(p.GetCov()[4]);
684 hcovel[6]=double(p.GetCov()[2]);
685 hcovel[7]=double(p.GetCov()[4]);
686 hcovel[8]=double(p.GetCov()[5]);
687 hcov.SetRotation(hcovel);
688 // now rotate in local system
689 hcov.Multiply(svOrigMatrix);
690 hcov.MultiplyLeft(&svOrigMatrix->Inverse());
691 // now hcov is LOCAL COVARIANCE MATRIX
692
693
694 // pepopepo
695 if (fBug==1) {
696 // correzione bug LAYER 5 SSD temporanea..
697 int ssdidx=AliITSAlignMilleModule::GetIndexFromVolumeID(p.GetVolumeID());
698 if (ssdidx>=500 && ssdidx<1248) {
699 int ladder=(ssdidx-500)%22;
700 if (ladder==18) p.SetVolumeID(AliITSAlignMilleModule::GetVolumeIDFromIndex(ssdidx+1));
701 if (ladder==19) p.SetVolumeID(AliITSAlignMilleModule::GetVolumeIDFromIndex(ssdidx-1));
702 }
703 }
704
705 /// get (evenctually prealigned) matrix of sens. vol.
706 TGeoHMatrix *svMatrix = fMilleModule[intidx[idx[i]]]->GetSensitiveVolumeMatrix(p.GetVolumeID());
707 // modify global coordinates according with pre-aligment
708 svMatrix->LocalToMaster(pl,pg);
709 // now rotate in local system
710 hcov.Multiply(&svMatrix->Inverse());
711 hcov.MultiplyLeft(svMatrix);
712 // hcov is back in GLOBAL RF
713 Float_t pcov[6];
714 pcov[0]=hcov.GetRotationMatrix()[0];
715 pcov[1]=hcov.GetRotationMatrix()[1];
716 pcov[2]=hcov.GetRotationMatrix()[2];
717 pcov[3]=hcov.GetRotationMatrix()[4];
718 pcov[4]=hcov.GetRotationMatrix()[5];
719 pcov[5]=hcov.GetRotationMatrix()[8];
720
721 p.SetXYZ(pg[0],pg[1],pg[2],pcov);
722 AliDebug(3,Form("New global coordinates of measured point : X=%f Y=%f Z=%f \n",pg[0],pg[1],pg[2]));
723 atps->AddPoint(npto,&p);
724 AliDebug(2,Form("Adding point[%d] = ( %f , %f , %f ) volid = %d",npto,atps->GetX()[npto],atps->GetY()[npto],atps->GetZ()[npto],atps->GetVolumeID()[npto] ));
725
726 npto++;
727 }
728
729 return atps;
730}
731
732
733
734AliTrackPointArray *AliITSAlignMille::SortTrack(AliTrackPointArray *atp) {
735 /// sort alitrackpoints w.r.t. global Y direction
736 AliTrackPointArray *atps=NULL;
737 Int_t idx[20];
738 Int_t npts=atp->GetNPoints();
739 AliTrackPoint p;
740 atps=new AliTrackPointArray(npts);
741
742 TMath::Sort(npts,atp->GetY(),idx);
743
744 for (int i=0; i<npts; i++) {
745 atp->GetPoint(p,idx[i]);
746 atps->AddPoint(i,&p);
747 AliDebug(2,Form("Point[%d] = ( %f , %f , %f ) volid = %d",i,atps->GetX()[i],atps->GetY()[i],atps->GetZ()[i],atps->GetVolumeID()[i] ));
748 }
749 return atps;
750}
751
752
753Int_t AliITSAlignMille::InitModuleParams() {
754 /// initialize geometry parameters for a given detector
755 /// for current cluster (fCluster)
756 /// fGlobalInitParam[] is set as:
757 /// [tx,ty,tz,psi,theta,phi]
758 ///
759 /// return 0 if success
760
761 if (!fGeoManager) {
762 AliInfo("ITS geometry not initialized!");
763 return -1;
764 }
765
766 // now 'voluid' is the volumeID of a SENSITIVE VOLUME (coming from a cluster)
767
768 // set the internal index (index in module list)
769 UShort_t voluid=fCluster.GetVolumeID();
770 Int_t k=fNModules-1;
771 while (k>=0 && !(fMilleModule[k]->IsIn(voluid)) ) k--;
772 if (k<0) return -3;
773 fCurrentModuleInternalIndex=k; // the internal index of the SUPERMODULE
774
775 fCurrentModuleIndex=fMilleModule[k]->GetIndex(); // index of the SUPERMODULE
776
777 // set the index
778 Int_t index = GetModuleIndex(voluid);
779 if (index<0) return -2;
780 fCurrentSensVolIndex = index; // the index of the SENSITIVE VOLUME
781
782 fModuleInitParam[0] = 0.0;
783 fModuleInitParam[1] = 0.0;
784 fModuleInitParam[2] = 0.0;
785 fModuleInitParam[3] = 0.0; // psi (X)
786 fModuleInitParam[4] = 0.0; // theta (Y)
787 fModuleInitParam[5] = 0.0; // phi (Z)
788
789 fCurrentModuleHMatrix = fMilleModule[fCurrentModuleInternalIndex]->GetMatrix();
790
791 for (int ii=0; ii<3; ii++)
792 fCurrentModuleTranslation[ii]=fCurrentModuleHMatrix->GetTranslation()[ii];
793
794 /// get (evenctually prealigned) matrix of sens. vol.
795 TGeoHMatrix *svMatrix = fMilleModule[fCurrentModuleInternalIndex]->GetSensitiveVolumeMatrix(voluid);
796
797 fMeasGlo[0] = fCluster.GetX();
798 fMeasGlo[1] = fCluster.GetY();
799 fMeasGlo[2] = fCluster.GetZ();
800 svMatrix->MasterToLocal(fMeasGlo,fMeasLoc);
801 AliDebug(2,Form("Local coordinates of measured point : X=%f Y=%f Z=%f \n",fMeasLoc[0] ,fMeasLoc[1] ,fMeasLoc[2] ));
802
803 // set stdev from cluster
804 TGeoHMatrix hcov;
805 Double_t hcovel[9];
806 hcovel[0]=double(fCluster.GetCov()[0]);
807 hcovel[1]=double(fCluster.GetCov()[1]);
808 hcovel[2]=double(fCluster.GetCov()[2]);
809 hcovel[3]=double(fCluster.GetCov()[1]);
810 hcovel[4]=double(fCluster.GetCov()[3]);
811 hcovel[5]=double(fCluster.GetCov()[4]);
812 hcovel[6]=double(fCluster.GetCov()[2]);
813 hcovel[7]=double(fCluster.GetCov()[4]);
814 hcovel[8]=double(fCluster.GetCov()[5]);
815 hcov.SetRotation(hcovel);
816 // now rotate in local system
817 hcov.Multiply(svMatrix);
818 hcov.MultiplyLeft(&svMatrix->Inverse());
819
820 // set local sigmas
821 fSigmaLoc[0] = TMath::Sqrt(TMath::Abs(hcov.GetRotationMatrix()[0]));
822 fSigmaLoc[1] = TMath::Sqrt(TMath::Abs(hcov.GetRotationMatrix()[4]));
823 fSigmaLoc[2] = TMath::Sqrt(TMath::Abs(hcov.GetRotationMatrix()[8]));
824
825 // set minimum value for SigmaLoc to 10 micron
826 if (fSigmaLoc[0]<0.0010) fSigmaLoc[0]=0.0010;
827 if (fSigmaLoc[2]<0.0010) fSigmaLoc[2]=0.0010;
828
829 // multiply local sigmas by global factor
830 fSigmaLoc[0] *= fSigmaXfactor;
831 fSigmaLoc[2] *= fSigmaZfactor;
832
833 // multiply local sigmas by individual factor
834 fSigmaLoc[0] *= fSensVolSigmaXfactor[index];
835 fSigmaLoc[2] *= fSensVolSigmaZfactor[index];
836
837 AliDebug(2,Form("Setting StDev from CovMat : fSigmaLocX=%g fSigmaLocY=%g fSigmaLocZ=%g \n",fSigmaLoc[0] ,fSigmaLoc[1] ,fSigmaLoc[2] ));
838
839 return 0;
840}
841
842void AliITSAlignMille::SetCurrentModule(Int_t index) {
843 /// set as current the SuperModule that contains the 'index' sens.vol.
844 if (index<0 || index>2197) {
845 AliInfo("index does not correspond to a sensitive volume!");
846 return;
847 }
848 UShort_t voluid=GetModuleVolumeID(index);
849 Int_t k=IsContained(voluid);
850 if (k>=0){
851 fCluster.SetVolumeID(voluid);
852 fCluster.SetXYZ(0,0,0);
853 InitModuleParams();
854 }
855 else
856 AliInfo(Form("module %d not defined\n",index));
857}
858
859void AliITSAlignMille::SetCurrentSensitiveModule(Int_t index) {
860 /// set as current the SuperModule that contains the 'index' sens.vol.
861 if (index<0 || index>2197) {
862 AliInfo("index does not correspond to a sensitive volume!");
863 return;
864 }
865 UShort_t voluid=AliITSAlignMilleModule::GetVolumeIDFromIndex(index);
866 Int_t k=IsDefined(voluid);
867 if (k>=0){
868 fCluster.SetVolumeID(voluid);
869 fCluster.SetXYZ(0,0,0);
870 InitModuleParams();
871 }
872 else
873 AliInfo(Form("module %d not defined\n",index));
874}
875
876void AliITSAlignMille::Print(Option_t*) const
877{
878 /// print infos
879 printf("*** AliMillepede for ITS ***\n");
880 printf(" number of defined super modules: %d\n",fNModules);
881
882 if (fGeoManager)
883 printf(" geometry loaded from %s\n",fGeometryFileName.Data());
884 else
885 printf(" geometry not loaded\n");
886
887 if (fUseSuperModules)
888 printf(" using custom supermodules ( %d defined )\n",fNSuperModules);
889 else
890 printf(" custom supermodules not used\n");
891
892 if (fUsePreAlignment)
893 printf(" using prealignment from %s \n",fPreAlignmentFileName.Data());
894 else
895 printf(" prealignment not used\n");
896
897 if (fBOn)
898 printf(" B Field set to %f T - using Riemann's helices\n",fBField);
899 else
900 printf(" B Field OFF - using straight lines \n");
901
902 if (fUseLocalShifts)
903 printf(" Alignment shifts will be computed in LOCAL RS\n");
904 else
905 printf(" Alignment shifts will be computed in GLOBAL RS\n");
906
907 if (fRequirePoints) printf(" Required points in tracks:\n");
908 for (Int_t i=0; i<6; i++) {
909 if (fNReqLayUp[i]>0) printf(" Layer %d : %d points with Y>0\n",i+1,fNReqLayUp[i]);
910 if (fNReqLayDown[i]>0) printf(" Layer %d : %d points with Y<0\n",i+1,fNReqLayDown[i]);
911 if (fNReqLay[i]>0) printf(" Layer %d : %d points \n",i+1,fNReqLay[i]);
912 }
913 for (Int_t i=0; i<3; i++) {
914 if (fNReqDetUp[i]>0) printf(" Detector %d : %d points with Y>0\n",i+1,fNReqDetUp[i]);
915 if (fNReqDetDown[i]>0) printf(" Detector %d : %d points with Y<0\n",i+1,fNReqDetDown[i]);
916 if (fNReqDet[i]>0) printf(" Detector %d : %d points \n",i+1,fNReqDet[i]);
917 }
918
919 printf("\n Millepede configuration parameters:\n");
920 printf(" init parsig for translations : %.4f\n",fParSigTranslations);
921 printf(" init parsig for rotations : %.4f\n",fParSigRotations);
922 printf(" init value for chi2 cut : %.4f\n",fStartFac);
923 printf(" first iteration cut value : %.4f\n",fResCutInitial);
924 printf(" other iterations cut value : %.4f\n",fResCut);
925 printf(" number of stddev for chi2 cut : %d\n",fNStdDev);
926 printf(" mult. fact. for local sigmas : %.4f %.4f\n",fSigmaXfactor, fSigmaZfactor);
927
928 printf("List of defined modules:\n");
929 printf(" intidx\tindex\tvoluid\tname\n");
930 for (int i=0; i<fNModules; i++)
931 printf(" %d\t%d\t%d\t%s\n",i,fModuleIndex[i],fModuleVolumeID[i],fMilleModule[i]->GetName());
932
933}
934
935AliITSAlignMilleModule *AliITSAlignMille::GetMilleModule(UShort_t voluid)
936{
937 // return pointer to a define supermodule
938 // return NULL if error
939 Int_t i=IsDefined(voluid);
940 if (i<0) return NULL;
941 return fMilleModule[i];
942}
943
944AliITSAlignMilleModule *AliITSAlignMille::GetCurrentModule() const
945{
946 if (fNModules) return fMilleModule[fCurrentModuleInternalIndex];
947 return NULL;
948}
949
950void AliITSAlignMille::PrintCurrentModuleInfo()
951{
952 ///
953 Int_t k=fCurrentModuleInternalIndex;
954 if (k<0 || k>=fNModules) return;
955 fMilleModule[k]->Print("");
956}
957
958Bool_t AliITSAlignMille::InitRiemanFit() {
959 // Initialize Riemann Fitter for current track
960 // return kFALSE if error
961
962 if (!fBOn) return kFALSE;
963
964 Int_t npts=0;
965 AliTrackPoint ap;
966 npts = fTrack->GetNPoints();
967 AliDebug(3,Form("Fitting track with %d points",npts));
968
969 fRieman->Reset();
970 fRieman->SetTrackPointArray(fTrack);
971
972 TArrayI ai(npts);
973 for (Int_t ipt=0; ipt<npts; ipt++) ai[ipt]=fTrack->GetVolumeID()[ipt];
974
975 // fit track with 5 params in his own tracking-rotated reference system
976 // xc = -p[1]/p[0];
977 // yc = 1/p[0];
978 // R = sqrt( x0*x0 + y0*y0 - y0*p[2]);
979 if (!fRieman->Fit(&ai,NULL,(AliGeomManager::ELayerID)1,(AliGeomManager::ELayerID)6)) {
980 return kFALSE;
981 }
982
983 for (int i=0; i<5; i++)
984 fLocalInitParam[i] = fRieman->GetParam()[i];
985
986 return kTRUE;
987}
988
989
990void AliITSAlignMille::InitTrackParams(int meth) {
991 /// initialize local parameters with different methods
992 /// for current track (fTrack)
993
994 Int_t npts=0;
995 TF1 *f1=NULL;
996 TGraph *g=NULL;
997 Float_t sigmax[20],sigmay[20],sigmaz[20];
998 AliTrackPoint ap;
999 TGraphErrors *ge=NULL;
1000
1001 switch (meth) {
1002 case 1: // simple linear interpolation
1003 // get local starting parameters (to be substituted by ESD track parms)
1004 // local parms (fLocalInitParam[]) are:
1005 // [0] = global x coord. of straight line intersection at y=0 plane
1006 // [1] = global z coord. of straight line intersection at y=0 plane
1007 // [2] = px/py
1008 // [3] = pz/py
1009
1010 // test #1: linear fit in x(y) and z(y)
1011 npts = fTrack->GetNPoints();
1012 AliDebug(3,Form("*** initializing track with %d points ***",npts));
1013
1014 f1=new TF1("f1","[0]+x*[1]",-50,50);
1015
1016 g=new TGraph(npts,fTrack->GetY(),fTrack->GetX());
1017 g->Fit(f1,"RNQ");
1018 fLocalInitParam[0] = f1->GetParameter(0);
1019 fLocalInitParam[2] = f1->GetParameter(1);
1020 AliDebug(2,Form("X = p0gx + ugx*Y : p0gx = %f +- %f ugx = %f +- %f\n",fLocalInitParam[0],f1->GetParError(0),fLocalInitParam[2],f1->GetParError(1)));
1021 delete g; g=NULL;
1022
1023 g=new TGraph(npts,fTrack->GetY(),fTrack->GetZ());
1024 g->Fit(f1,"RNQ");
1025 fLocalInitParam[1] = f1->GetParameter(0);
1026 fLocalInitParam[3] = f1->GetParameter(1);
1027 AliDebug(2,Form("Z = p0gz + ugz*Y : p0gz=%f ugz=%f\n",fLocalInitParam[1],fLocalInitParam[3]));
1028 delete g;
1029 delete f1;
1030
1031 break;
1032
1033 case 2: // simple linear interpolation weighted using sigmas
1034 // get local starting parameters (to be substituted by ESD track parms)
1035 // local parms (fLocalInitParam[]) are:
1036 // [0] = global x coord. of straight line intersection at y=0 plane
1037 // [1] = global z coord. of straight line intersection at y=0 plane
1038 // [2] = px/py
1039 // [3] = pz/py
1040
1041 // test #1: linear fit in x(y) and z(y)
1042 npts = fTrack->GetNPoints();
1043 AliDebug(3,Form("*** initializing track with %d points ***",npts));
1044
1045 for (Int_t isig=0; isig<npts; isig++) {
1046 fTrack->GetPoint(ap,isig);
1047 sigmax[isig]=ap.GetCov()[0];
1048 if (sigmax[isig]<1.0e-07) sigmax[isig]=1.0e-07; // minimum sigma=3 mu
1049 sigmax[isig]=TMath::Sqrt(sigmax[isig]);
1050
1051 sigmay[isig]=ap.GetCov()[3];
1052 if (sigmay[isig]<1.0e-07) sigmay[isig]=1.0e-07; // minimum sigma=3 mu
1053 sigmay[isig]=TMath::Sqrt(sigmay[isig]);
1054
1055 sigmaz[isig]=ap.GetCov()[5];
1056 if (sigmaz[isig]<1.0e-07) sigmaz[isig]=1.0e-07; // minimum sigma=3 mu
1057 sigmaz[isig]=TMath::Sqrt(sigmaz[isig]);
1058
1059 if (fTempExcludedModule>=0 && fTempExcludedModule==AliITSAlignMilleModule::GetIndexFromVolumeID(ap.GetVolumeID())) {
1060 sigmax[isig] *= 1000.;
1061 sigmay[isig] *= 1000.;
1062 sigmaz[isig] *= 1000.;
1063 fTempExcludedModule=-1;
1064 }
1065 }
1066
1067 f1=new TF1("f1","[0]+x*[1]",-50,50);
1068
1069 ge=new TGraphErrors(npts,fTrack->GetY(),fTrack->GetX(),sigmay,sigmax);
1070 ge->Fit(f1,"RNQ");
1071 fLocalInitParam[0] = f1->GetParameter(0);
1072 fLocalInitParam[2] = f1->GetParameter(1);
1073 AliDebug(2,Form("X = p0gx + ugx*Y : p0gx = %f +- %f ugx = %f +- %f\n",fLocalInitParam[0],f1->GetParError(0),fLocalInitParam[2],f1->GetParError(1)));
1074 delete ge; ge=NULL;
1075
1076 ge=new TGraphErrors(npts,fTrack->GetY(),fTrack->GetZ(),sigmay,sigmaz);
1077 ge->Fit(f1,"RNQ");
1078 fLocalInitParam[1] = f1->GetParameter(0);
1079 fLocalInitParam[3] = f1->GetParameter(1);
1080 AliDebug(2,Form("Z = p0gz + ugz*Y : p0gz=%f ugz=%f\n",fLocalInitParam[1],fLocalInitParam[3]));
1081 delete ge;
1082 delete f1;
1083
1084 break;
1085
1086 }
1087}
1088
1089Int_t AliITSAlignMille::IsDefined(UShort_t voluid) const
1090{
1091 // checks if supermodule 'voluid' is defined and return the internal index
1092 // return -1 if error
1093 Int_t k=fNModules-1;
1094 while (k>=0 && !(voluid==fModuleVolumeID[k]) ) k--;
1095 if (k<0) return -1;
1096 return k;
1097}
1098
1099Int_t AliITSAlignMille::IsContained(UShort_t voluid) const
1100{
1101 // checks if the sensitive module 'voluid' is contained inside a supermodule and return the internal index of the last identified supermodule
1102 // return -1 if error
1103 if (AliITSAlignMilleModule::GetIndexFromVolumeID(voluid)<0) return -1;
1104 Int_t k=fNModules-1;
1105 while (k>=0 && !(fMilleModule[k]->IsIn(voluid)) ) k--;
1106 if (k<0) return -1;
1107 return k;
1108}
1109
1110Bool_t AliITSAlignMille::CheckVolumeID(UShort_t voluid) const
1111{
1112 /// check if a sensitive volume is contained inside one of the defined supermodules
1113 Int_t k=fNModules-1;
1114 while (k>=0 && !(fMilleModule[k]->IsIn(voluid)) ) k--;
1115 if (k>=0) return kTRUE;
1116 return kFALSE;
1117}
1118
1119Int_t AliITSAlignMille::CheckCurrentTrack() {
1120 /// checks if AliTrackPoints belongs to defined modules
1121 /// return number of good poins
1122 /// return 0 if not enough points
1123
1124 Int_t npts = fTrack->GetNPoints();
1125 Int_t ngoodpts=0;
1126 // debug points
1127 for (int j=0; j<npts; j++) {
1128 UShort_t voluid = fTrack->GetVolumeID()[j];
1129 if (CheckVolumeID(voluid)) {
1130 ngoodpts++;
1131 }
1132 }
1133
1134 if (ngoodpts<fMinNPtsPerTrack) return 0;
1135
1136 return ngoodpts;
1137}
1138
1139Int_t AliITSAlignMille::ProcessTrack(AliTrackPointArray *track) {
1140 /// Process track; Loop over hits and set local equations
1141 /// here 'track' is a AliTrackPointArray
1142 /// return 0 if success;
1143
1144 if (!fIsMilleInit) {
1145 AliInfo("Millepede has not been initialized!");
1146 return -1;
1147 }
1148
1149 Int_t npts = track->GetNPoints();
1150 AliDebug(2,Form("*** Input track with %d points ***",npts));
1151
1152 // preprocessing of the input track: keep only points in defined volumes,
1153 // move points if prealignment is set, sort by Yglo if required
1154
1155 fTrack=PrepareTrack(track);
1156 if (!fTrack) return -1;
1157
1158 npts = fTrack->GetNPoints();
1159 AliDebug(2,Form("*** Processing prepared track with %d points ***",npts));
1160
1161 if (!fBOn) { // straight lines
1162 // set local starting parameters (to be substituted by ESD track parms)
1163 // local parms (fLocalInitParam[]) are:
1164 // [0] = global x coord. of straight line intersection at y=0 plane
1165 // [1] = global z coord. of straight line intersection at y=0 plane
1166 // [2] = px/py
1167 // [3] = pz/py
1168 InitTrackParams(fInitTrackParamsMeth);
1169 }
1170 else {
1171 // local parms (fLocalInitParam[]) are the Riemann Fitter params
1172 if (!InitRiemanFit()) {
1173 AliInfo("Riemann fit failed! skipping this track...");
1174 delete fTrack;
1175 fTrack=NULL;
1176 return -5;
1177 }
1178 }
1179
1180 Int_t nloceq=0;
1181 AliITSAlignMilleData *md = new AliITSAlignMilleData[npts];
1182
1183 for (Int_t ipt=0; ipt<npts; ipt++) {
1184 fTrack->GetPoint(fCluster,ipt);
1185 AliDebug(2,Form("\n--- processing point %d --- \n",ipt));
1186
1187 // set geometry parameters for the the current module
1188 if (InitModuleParams()) continue;
1189 AliDebug(2,Form(" VolID=%d Index=%d InternalIdx=%d symname=%s\n", track->GetVolumeID()[ipt], fCurrentModuleIndex ,fCurrentModuleInternalIndex, AliGeomManager::SymName(track->GetVolumeID()[ipt]) ));
1190 AliDebug(2,Form(" Preprocessed Point = ( %f , %f , %f ) \n",fCluster.GetX(),fCluster.GetY(),fCluster.GetZ()));
1191
1192 if (!AddLocalEquation(md[nloceq])) {
1193 nloceq++;
1194 fProcessedPoints[fCurrentModuleInternalIndex]++;
1195 }
1196 else {
1197 fTotBadLocEqPoints++;
1198 }
1199
1200 } // end loop over points
1201
1202 delete fTrack;
1203 fTrack=NULL;
1204
1205 // not enough good points!
1206 if (nloceq<fMinNPtsPerTrack) {
1207 delete [] md;
1208 return -1;
1209 }
1210
1211 // finally send local equations to millepede
1212 SetLocalEquations(md,nloceq);
1213
1214 delete [] md;
1215
1216 return 0;
1217}
1218
1219Int_t AliITSAlignMille::CalcIntersectionPoint(Double_t *lpar, Double_t *gpar) {
1220 /// calculate intersection point of track with current module in local coordinates
1221 /// according with a given set of parameters (local(4/5) and global(6))
1222 /// and fill fPintLoc/Glo
1223 /// local are: pgx0, pgz0, ugx, ugz OR riemann fitters pars
1224 /// global are: tx,ty,tz,psi,theta,phi (Raff's delta angles in deg.)
1225 /// return 0 if success
1226
1227 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]));
1228 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]));
1229
1230
1231 // prepare the TGeoHMatrix
1232 TGeoHMatrix *fTempHMat = fMilleModule[fCurrentModuleInternalIndex]->GetSensitiveVolumeModifiedMatrix(fCluster.GetVolumeID(),gpar);
1233 if (!fTempHMat) return -1;
1234
1235 Double_t v0g[3]; // vector with straight line direction in global coord.
1236 Double_t p0g[3]; // point of the straight line (glo)
1237
1238 if (fBOn) { // B FIELD!
1239 AliTrackPoint prf;
1240 for (int ip=0; ip<5; ip++)
1241 fRieman->SetParam(ip,lpar[ip]);
1242
1243 if (!fRieman->GetPCA(fCluster,prf)) {
1244 AliInfo(Form("error in GetPCA for point %d",fCluster.GetVolumeID()));
1245 return -3;
1246 }
1247 // now determine straight line passing tangent to fit curve at prf
1248 // ugx = dX/dY_glo = DeltaX/DeltaY_glo
1249 // mo' P1=(X,Y,Z)_glo_prf
1250 // => (x,y,Z)_trk_prf ruotando di alpha...
1251 Double_t alpha=fRieman->GetAlpha();
1252 Double_t x1g = prf.GetX();
1253 Double_t y1g = prf.GetY();
1254 Double_t z1g = prf.GetZ();
1255 Double_t x1t = x1g*TMath::Cos(alpha) + y1g*TMath::Sin(alpha);
1256 Double_t y1t = -x1g*TMath::Sin(alpha) + y1g*TMath::Cos(alpha);
1257 Double_t z1t = z1g;
1258
1259 Double_t x2t = x1t+1.0;
1260 Double_t y2t = y1t+fRieman->GetDYat(x1t);
1261 Double_t z2t = z1t+fRieman->GetDZat(x1t);
1262 Double_t x2g = x2t*TMath::Cos(alpha) - y2t*TMath::Sin(alpha);
1263 Double_t y2g = x2t*TMath::Sin(alpha) + y2t*TMath::Cos(alpha);
1264 Double_t z2g = z2t;
1265
1266 AliDebug(3,Form("Riemann frame: fAlpha = %f = %f ",alpha,alpha*180./TMath::Pi()));
1267 AliDebug(3,Form(" prf_glo=( %f , %f , %f ) prf_rf=( %f , %f , %f )\n", x1g,y1g,z1g, x1t,y1t,z1t));
1268 AliDebug(3,Form(" mov_glo=( %f , %f , %f ) rf=( %f , %f , %f )\n",x2g,y2g,z2g, x2t,y2t,z2t));
1269
1270 if (TMath::Abs(y2g-y1g)<1e-15) {
1271 AliInfo("DeltaY=0! Cannot proceed...");
1272 return -1;
1273 }
1274 // ugx,1,ugz
1275 v0g[0] = (x2g-x1g)/(y2g-y1g);
1276 v0g[1]=1.0;
1277 v0g[2] = (z2g-z1g)/(y2g-y1g);
1278
1279 // point: just keep prf
1280 p0g[0]=x1g;
1281 p0g[1]=y1g;
1282 p0g[2]=z1g;
1283 }
1284 else { // staight line
1285 // vector of initial straight line direction in glob. coord
1286 v0g[0]=lpar[2];
1287 v0g[1]=1.0;
1288 v0g[2]=lpar[3];
1289
1290 // intercept in yg=0 plane in glob coord
1291 p0g[0]=lpar[0];
1292 p0g[1]=0.0;
1293 p0g[2]=lpar[1];
1294 }
1295 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]));
1296
1297 // same in local coord.
1298 Double_t p0l[3],v0l[3];
1299 fTempHMat->MasterToLocalVect(v0g,v0l);
1300 fTempHMat->MasterToLocal(p0g,p0l);
1301
1302 if (TMath::Abs(v0l[1])<1e-15) {
1303 AliInfo("Track Y direction in local frame is zero! Cannot proceed...");
1304 return -1;
1305 }
1306
1307 // local intersection point
1308 fPintLoc[0] = p0l[0] - (v0l[0]/v0l[1])*p0l[1];
1309 fPintLoc[1] = 0;
1310 fPintLoc[2] = p0l[2] - (v0l[2]/v0l[1])*p0l[1];
1311
1312 // global intersection point
1313 fTempHMat->LocalToMaster(fPintLoc,fPintGlo);
1314 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]));
1315
1316 return 0;
1317}
1318
1319Int_t AliITSAlignMille::CalcDerivatives(Int_t paridx, Bool_t islpar) {
1320 /// calculate numerically (ROOT's style) the derivatives for
1321 /// local X intersection and local Z intersection
1322 /// parlist: local (islpar=kTRUE) pgx0, pgz0, ugx0, ugz0 OR riemann's params
1323 /// global (islpar=kFALSE) tx, ty, tz, psi, theta, phi (Raf's angles in deg)
1324 /// return 0 if success
1325
1326 // copy initial parameters
1327 Double_t lpar[ITSMILLENLOCAL];
1328 Double_t gpar[ITSMILLENPARCH];
1329 for (Int_t i=0; i<ITSMILLENLOCAL; i++) lpar[i]=fLocalInitParam[i];
1330 for (Int_t i=0; i<ITSMILLENPARCH; i++) gpar[i]=fModuleInitParam[i];
1331
1332 // trial with fixed dpar...
1333 Double_t dpar=0.0;
1334
1335 if (islpar) { // track parameters
1336 //dpar=fLocalInitParam[paridx]*0.001;
1337 // set minimum dpar
1338 if (!fBOn) {
1339 if (paridx<2) dpar=1.0e-4; // translations
1340 else dpar=1.0e-6; // direction
1341 }
1342 else { // B Field
1343 // pepo: proviamo con 1/1000, poi evenctually 1/100...
1344 Double_t dfrac=0.01;
1345 switch(paridx) {
1346 case 0:
1347 // RMS cosmics: 1e-4
1348 dpar = TMath::Max(1.0e-6,TMath::Abs(fLocalInitParam[paridx]*dfrac));
1349 break;
1350 case 1:
1351 // RMS cosmics: 0.2
1352 dpar = TMath::Max(0.002,TMath::Abs(fLocalInitParam[paridx]*dfrac));
1353 break;
1354 case 2:
1355 // RMS cosmics: 9
1356 dpar = TMath::Max(0.09,TMath::Abs(fLocalInitParam[paridx]*dfrac));
1357 break;
1358 case 3:
1359 // RMS cosmics: 7
1360 dpar = TMath::Max(0.07,TMath::Abs(fLocalInitParam[paridx]*dfrac));
1361 break;
1362 case 4:
1363 // RMS cosmics: 0.3
1364 dpar = TMath::Max(0.003,TMath::Abs(fLocalInitParam[paridx]*dfrac));
1365 break;
1366 }
1367 }
1368 }
1369 else { // alignment global parameters
1370 //dpar=fModuleInitParam[paridx]*0.001;
1371 if (paridx<3) dpar=1.0e-4; // translations
1372 else dpar=1.0e-2; // angles
1373 }
1374
1375 AliDebug(3,Form("+++ using dpar=%g",dpar));
1376
1377 // calculate derivative ROOT's like:
1378 // using f(x+h),f(x-h),f(x+h/2),f(x-h2)...
1379 Double_t pintl1[3]; // f(x-h)
1380 Double_t pintl2[3]; // f(x-h/2)
1381 Double_t pintl3[3]; // f(x+h/2)
1382 Double_t pintl4[3]; // f(x+h)
1383
1384 // first values
1385 if (islpar) lpar[paridx] -= dpar;
1386 else gpar[paridx] -= dpar;
1387 if (CalcIntersectionPoint(lpar, gpar)) return -2;
1388 for (Int_t i=0; i<3; i++) pintl1[i]=fPintLoc[i];
1389
1390 // second values
1391 if (islpar) lpar[paridx] += dpar/2;
1392 else gpar[paridx] += dpar/2;
1393 if (CalcIntersectionPoint(lpar, gpar)) return -2;
1394 for (Int_t i=0; i<3; i++) pintl2[i]=fPintLoc[i];
1395
1396 // third values
1397 if (islpar) lpar[paridx] += dpar;
1398 else gpar[paridx] += dpar;
1399 if (CalcIntersectionPoint(lpar, gpar)) return -2;
1400 for (Int_t i=0; i<3; i++) pintl3[i]=fPintLoc[i];
1401
1402 // fourth values
1403 if (islpar) lpar[paridx] += dpar/2;
1404 else gpar[paridx] += dpar/2;
1405 if (CalcIntersectionPoint(lpar, gpar)) return -2;
1406 for (Int_t i=0; i<3; i++) pintl4[i]=fPintLoc[i];
1407
1408 Double_t h2 = 1./(2.*dpar);
1409 Double_t d0 = pintl4[0]-pintl1[0];
1410 Double_t d2 = 2.*(pintl3[0]-pintl2[0]);
1411 fDerivativeXLoc = h2*(4*d2 - d0)/3.;
1412 if (TMath::Abs(fDerivativeXLoc) < 1.0e-9) fDerivativeXLoc=0.0;
1413
1414 d0 = pintl4[2]-pintl1[2];
1415 d2 = 2.*(pintl3[2]-pintl2[2]);
1416 fDerivativeZLoc = h2*(4*d2 - d0)/3.;
1417 if (TMath::Abs(fDerivativeZLoc) < 1.0e-9) fDerivativeZLoc=0.0;
1418
1419 AliDebug(3,Form("\n+++ derivatives +++ \n"));
1420 AliDebug(3,Form("+++ dXLoc/dpar = %g +++\n",fDerivativeXLoc));
1421 AliDebug(3,Form("+++ dZLoc/dpar = %g +++\n\n",fDerivativeZLoc));
1422
1423 return 0;
1424}
1425
1426
1427Int_t AliITSAlignMille::AddLocalEquation(AliITSAlignMilleData &m) {
1428 /// Define local equation for current cluster in X and Z coor.
1429 /// and store them to memory
1430 /// return 0 if success
1431
1432 // store first interaction point
1433 if (CalcIntersectionPoint(fLocalInitParam, fModuleInitParam)) return -4;
1434 for (Int_t i=0; i<3; i++) fPintLoc0[i]=fPintLoc[i];
1435 AliDebug(2,Form("Intesect. point: L( %f , %f , %f )",fPintLoc[0],fPintLoc[1],fPintLoc[2]));
1436
1437 // calculate local derivatives numerically
1438 Double_t dXdL[ITSMILLENLOCAL],dZdL[ITSMILLENLOCAL];
1439 for (Int_t i=0; i<fNLocal; i++) {
1440 if (CalcDerivatives(i,kTRUE)) return -1;
1441 dXdL[i]=fDerivativeXLoc;
1442 dZdL[i]=fDerivativeZLoc;
1443 }
1444
1445 Double_t dXdG[ITSMILLENPARCH],dZdG[ITSMILLENPARCH];
1446 for (Int_t i=0; i<ITSMILLENPARCH; i++) {
1447 if (CalcDerivatives(i,kFALSE)) return -1;
1448 dXdG[i]=fDerivativeXLoc;
1449 dZdG[i]=fDerivativeZLoc;
1450 }
1451
1452 AliDebug(2,Form("\n***************\n"));
1453 for (Int_t i=0; i<fNLocal; i++)
1454 AliDebug(2,Form("Local parameter %d - dXdpar = %g - dZdpar = %g\n",i,dXdL[i],dZdL[i]));
1455 for (Int_t i=0; i<ITSMILLENPARCH; i++)
1456 AliDebug(2,Form("Global parameter %d - dXdpar = %g - dZdpar = %g\n",i,dXdG[i],dZdG[i]));
1457 AliDebug(2,Form("\n***************\n"));
1458
1459 // check if at least 1 local and 1 global derivs. are not null
1460 Double_t nonzero=0.0;
1461 for (Int_t i=0; i<fNLocal; i++) nonzero += TMath::Abs(dXdL[i]);
1462 if (nonzero==0.0) {
1463 AliInfo("Aborting local equations for this point beacuse of zero local X derivatives!");
1464 return -2;
1465 }
1466 nonzero=0.0;
1467 for (Int_t i=0; i<ITSMILLENPARCH; i++) nonzero += TMath::Abs(dXdG[i]);
1468 if (nonzero==0.0) {
1469 AliInfo("Aborting local equations for this point beacuse of zero global X derivatives!");
1470 return -2;
1471 }
1472 nonzero=0.0;
1473 for (Int_t i=0; i<fNLocal; i++) nonzero += TMath::Abs(dZdL[i]);
1474 if (nonzero==0.0) {
1475 AliInfo("Aborting local equations for this point beacuse of zero local Z derivatives!");
1476 return -2;
1477 }
1478 nonzero=0.0;
1479 for (Int_t i=0; i<ITSMILLENPARCH; i++) nonzero += TMath::Abs(dZdG[i]);
1480 if (nonzero==0.0) {
1481 AliInfo("Aborting local equations for this point beacuse of zero global Z derivatives!");
1482 return -2;
1483 }
1484
1485 // ok, can copy to m
1486
1487 AliDebug(2,Form("Adding local equation X with fMeas=%.6f and fSigma=%.6f",(fMeasLoc[0]-fPintLoc0[0]), fSigmaLoc[0]));
1488 // set equation for Xloc coordinate
1489 for (Int_t i=0; i<fNLocal; i++) {
1490 m.GetIdxlocX()[i]=i;
1491 m.GetDerlocX()[i]=dXdL[i];
1492 }
1493 for (Int_t i=0; i<ITSMILLENPARCH; i++) {
1494 m.GetIdxgloX()[i]=fCurrentModuleInternalIndex*ITSMILLENPARCH+i;
1495 m.GetDergloX()[i]=dXdG[i];
1496 }
1497 m.SetMeasX(fMeasLoc[0]-fPintLoc0[0]);
1498 m.SetSigmaX(fSigmaLoc[0]);
1499
1500 AliDebug(2,Form("Adding local equation Z with fMeas=%.6f and fSigma=%.6f",(fMeasLoc[2]-fPintLoc0[2]), fSigmaLoc[2]));
1501 // set equation for Zloc coordinate
1502 for (Int_t i=0; i<fNLocal; i++) {
1503 m.GetIdxlocZ()[i]=i;
1504 m.GetDerlocZ()[i]=dZdL[i];
1505 }
1506 for (Int_t i=0; i<ITSMILLENPARCH; i++) {
1507 m.GetIdxgloZ()[i]=fCurrentModuleInternalIndex*ITSMILLENPARCH+i;
1508 m.GetDergloZ()[i]=dZdG[i];
1509 }
1510 m.SetMeasZ(fMeasLoc[2]-fPintLoc0[2]);
1511 m.SetSigmaZ(fSigmaLoc[2]);
1512
1513 return 0;
1514}
1515
1516
1517void AliITSAlignMille::SetLocalEquations(AliITSAlignMilleData *m, Int_t neq) {
1518 /// Set local equations with data stored in m
1519 /// return 0 if success
1520
1521 for (Int_t j=0; j<neq; j++) {
1522
1523 AliDebug(2,Form("setting local equation X with fMeas=%.6f and fSigma=%.6f",m[j].GetMeasX(), m[j].GetSigmaX()));
1524 // set equation for Xloc coordinate
1525 for (Int_t i=0; i<fNLocal; i++)
1526 SetLocalDerivative( m[j].GetIdxlocX()[i], m[j].GetDerlocX()[i] );
1527
1528 for (Int_t i=0; i<ITSMILLENPARCH; i++)
1529 SetGlobalDerivative( m[j].GetIdxgloX()[i], m[j].GetDergloX()[i] );
1530
1531 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, m[j].GetMeasX(), m[j].GetSigmaX());
1532
1533
1534 AliDebug(2,Form("setting local equation Z with fMeas=%.6f and fSigma=%.6f",m[j].GetMeasZ(), m[j].GetSigmaZ()));
1535 // set equation for Zloc coordinate
1536 for (Int_t i=0; i<fNLocal; i++)
1537 SetLocalDerivative( m[j].GetIdxlocZ()[i], m[j].GetDerlocZ()[i] );
1538
1539 for (Int_t i=0; i<ITSMILLENPARCH; i++)
1540 SetGlobalDerivative( m[j].GetIdxgloZ()[i], m[j].GetDergloZ()[i] );
1541
1542 fMillepede->SetLocalEquation(fGlobalDerivatives, fLocalDerivatives, m[j].GetMeasZ(), m[j].GetSigmaZ());
1543 }
1544}
1545
1546
1547void AliITSAlignMille::LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t lSingleFit) {
1548 /// Call local fit for this track
1549 if (!fIsMilleInit) {
1550 AliInfo("Millepede has not been initialized!");
1551 return;
1552 }
1553 Int_t iRes = fMillepede->LocalFit(iTrack,lTrackParam,lSingleFit);
1554 AliDebug(2,Form("iRes = %d",iRes));
1555 //if (iRes && !lSingleFit) {
1556 if (!lSingleFit) { // Ruben Shahoyan's bug fix
1557 fMillepede->SetNLocalEquations(fMillepede->GetNLocalEquations()+1);
1558 }
1559}
1560
1561void AliITSAlignMille::GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls) {
1562 /// Call global fit; Global parameters are stored in parameters
1563 if (!fIsMilleInit) {
1564 AliInfo("Millepede has not been initialized!");
1565 return;
1566 }
1567 fMillepede->GlobalFit(parameters,errors,pulls);
1568 AliInfo("Done fitting global parameters!");
1569}
1570
1571Double_t AliITSAlignMille::GetParError(Int_t iPar) {
1572 /// Get error of parameter iPar
1573 if (!fIsMilleInit) {
1574 AliInfo("Millepede has not been initialized!");
1575 return 0;
1576 }
1577 Double_t lErr = fMillepede->GetParError(iPar);
1578 return lErr;
1579}
1580
1581void AliITSAlignMille::PrintGlobalParameters() {
1582 /// Print global parameters
1583 if (!fIsMilleInit) {
1584 AliInfo("Millepede has not been initialized!");
1585 return;
1586 }
1587 fMillepede->PrintGlobalParameters();
1588}
1589
1590// //_________________________________________________________________________
1591Int_t AliITSAlignMille::LoadSuperModuleFile(const Char_t *sfile)
1592{
1593 // load definitions of supermodules from a root file
1594 // return 0 if success
1595
1596 TFile *smf=TFile::Open(sfile);
1597 if (!smf->IsOpen()) {
1598 AliInfo(Form("Cannot open supermodule file %s",sfile));
1599 return -1;
1600 }
1601
1602 TClonesArray *sma=(TClonesArray*)smf->Get("ITSMilleSuperModules");
1603 if (!sma) {
1604 AliInfo(Form("Cannot find ITSMilleSuperModules array in file"));
1605 return -2;
1606 }
1607 Int_t nsma=sma->GetEntriesFast();
1608 AliInfo(Form("Array of SuperModules with %d entries\n",nsma));
1609
1610 Char_t st[2048];
1611 char symname[250];
1612 UShort_t volid;
1613 TGeoHMatrix m;
1614
1615 for (Int_t i=0; i<nsma; i++) {
1616 AliAlignObjParams *a = (AliAlignObjParams*)sma->UncheckedAt(i);
1617 volid=a->GetVolUID();
1618 strcpy(st,a->GetSymName());
1619 a->GetMatrix(m);
1620
1621 sscanf(st,"%s",symname);
1622 // decode module list
1623 char *stp=strstr(st,"ModuleList:");
1624 if (!stp) return -3;
1625 stp += 11;
1626 int idx[2200];
1627 char spp[200]; int jp=0;
1628 char cl[20];
1629 strcpy(st,stp);
1630 int l=strlen(st);
1631 int j=0;
1632 int n=0;
1633
1634 while (j<=l) {
1635 if (st[j]==9 || st[j]==32 || st[j]==10 || st[j]==0) {
1636 spp[jp]=0;
1637 jp=0;
1638 if (strlen(spp)) {
1639 int k=strcspn(spp,"-");
1640 if (k<int(strlen(spp))) { // c'e' il -
1641 strcpy(cl,&(spp[k+1]));
1642 spp[k]=0;
1643 int ifrom=atoi(spp); int ito=atoi(cl);
1644 for (int b=ifrom; b<=ito; b++) {
1645 idx[n]=b;
1646 n++;
1647 }
1648 }
1649 else { // numerillo singolo
1650 idx[n]=atoi(spp);
1651 n++;
1652 }
1653 }
1654 }
1655 else {
1656 spp[jp]=st[j];
1657 jp++;
1658 }
1659 j++;
1660 }
1661 UShort_t volidsv[2198];
1662 for (j=0;j<n;j++) {
1663 volidsv[j]=AliITSAlignMilleModule::GetVolumeIDFromIndex(idx[j]);
1664 if (!volidsv[j]) {
1665 AliInfo(Form("Index %d not valid (range 0->2197)",idx[j]));
1666 return -5;
1667 }
1668 }
1669 Int_t smindex=int(2198+volid-14336); // virtual index
1670 fSuperModule[fNSuperModules]=new AliITSAlignMilleModule(smindex,volid,symname,&m,n,volidsv);
1671
1672 //-------------
1673 fNSuperModules++;
1674 }
1675
1676 smf->Close();
1677
1678 fUseSuperModules=1;
1679 return 0;
1680}
1681