1 /**************************************************************************
2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 //-----------------------------------------------------------------------------
18 /// \class AliITSAlignMilleModule
19 /// Alignment class for the ALICE ITS detector
21 /// This class is used by AliITSAlignMille to build custom supermodules
22 /// made of ITS sensitive modules. These supermodules are then aligned
24 /// Custom supermodules must have VolumeID > 14335
26 /// \author M. Lunardon
27 //-----------------------------------------------------------------------------
29 #include <TGeoManager.h>
30 #include <TGeoMatrix.h>
32 #include "AliITSAlignMilleModule.h"
33 #include "AliITSgeomTGeo.h"
34 #include "AliGeomManager.h"
35 #include "AliAlignObjParams.h"
39 ClassImp(AliITSAlignMilleModule)
42 //-------------------------------------------------------------
43 AliITSAlignMilleModule::AliITSAlignMilleModule() : TNamed(),
49 fSensVolModifMatrix(NULL),
53 fMatrix = new TGeoHMatrix;
54 fSensVolMatrix = new TGeoHMatrix;
55 fSensVolModifMatrix = new TGeoHMatrix;
56 fTempAlignObj=new AliAlignObjParams;
58 //-------------------------------------------------------------
59 AliITSAlignMilleModule::AliITSAlignMilleModule(Int_t index, UShort_t volid, char* symname, TGeoHMatrix *m, Int_t nsv, UShort_t *volidsv) : TNamed(),
65 fSensVolModifMatrix(NULL),
69 fMatrix = new TGeoHMatrix;
70 fSensVolMatrix = new TGeoHMatrix;
71 fSensVolModifMatrix = new TGeoHMatrix;
72 fTempAlignObj=new AliAlignObjParams;
73 if (Set(index,volid,symname,m,nsv,volidsv)) {
74 AliInfo("Error in AliITSAlignMilleModule::Set() - initializing void supermodule...");
77 //-------------------------------------------------------------
78 AliITSAlignMilleModule::AliITSAlignMilleModule(UShort_t volid) : TNamed(),
84 fSensVolModifMatrix(NULL),
87 /// simple constructor building a supermodule from a single sensitive volume
88 fMatrix = new TGeoHMatrix;
89 fSensVolMatrix = new TGeoHMatrix;
90 fSensVolModifMatrix = new TGeoHMatrix;
91 // temporary align object, just use the rotation...
92 fTempAlignObj=new AliAlignObjParams;
94 fIndex = GetIndexFromVolumeID(volid);
95 if (fIndex>=0 && gGeoManager) { // good sensitive module and geometry loaded
96 SetName(AliGeomManager::SymName(volid));
98 AddSensitiveVolume(volid);
99 if (SensVolMatrix(volid, fMatrix))
100 AliInfo("Matrix not defined");
103 AliInfo("Wrong VolumeID or Geometry not loaded - initializing void supermodule...");
106 //-------------------------------------------------------------
107 AliITSAlignMilleModule::~AliITSAlignMilleModule() {
110 delete fSensVolMatrix;
111 delete fSensVolModifMatrix;
112 delete fTempAlignObj;
114 //-------------------------------------------------------------
115 Int_t AliITSAlignMilleModule::Set(Int_t index, UShort_t volid, char* symname, TGeoHMatrix *m, Int_t nsv, UShort_t *volidsv)
117 // initialize a custom supermodule
118 // index, volid, symname and matrix must be given
119 // if (volidsv) add nsv sensitive volumes to the supermodules
120 // return 0 if success
123 AliInfo("Index must be >= 2198");
127 AliInfo("VolumeID must be >= 14336");
131 if (!symname) return -3;
132 for (Int_t i=0; i<2198; i++) {
133 if (!strcmp(symname,AliITSgeomTGeo::GetSymName(i))) {
134 AliInfo("Symname already used by a Sensitive Volume");
141 // can initialize needed stuffs
147 // add sensitive volumes
148 for (Int_t i=0; i<nsv; i++) AddSensitiveVolume(volidsv[i]);
152 //-------------------------------------------------------------
153 Int_t AliITSAlignMilleModule::GetIndexFromVolumeID(UShort_t voluid) {
154 /// index from volume ID
155 AliGeomManager::ELayerID lay = AliGeomManager::VolUIDToLayer(voluid);
156 if (lay<1|| lay>6) return -1;
157 Int_t idx=Int_t(voluid)-2048*lay;
158 if (idx>=AliGeomManager::LayerSize(lay)) return -1;
159 for (Int_t ilay=1; ilay<lay; ilay++)
160 idx += AliGeomManager::LayerSize(ilay);
163 //-------------------------------------------------------------
164 void AliITSAlignMilleModule::AddSensitiveVolume(UShort_t voluid)
166 /// add a sensitive volume to this supermodule
167 if (GetIndexFromVolumeID(voluid)<0) return; // bad volid
168 fSensVolVolumeID[fNSensVol] = voluid;
169 fSensVolIndex[fNSensVol] = GetIndexFromVolumeID(voluid);
172 //-------------------------------------------------------------
173 Bool_t AliITSAlignMilleModule::IsIn(UShort_t voluid) const
175 /// check if voluid is defined
176 if (!voluid) return kFALSE; // only positive voluid are accepted
177 for (Int_t i=0; i<fNSensVol; i++) {
178 if (fSensVolVolumeID[i]==voluid) return kTRUE;
182 //-------------------------------------------------------------
183 TGeoHMatrix *AliITSAlignMilleModule::GetSensitiveVolumeModifiedMatrix(UShort_t voluid, Double_t *deltalocal)
185 // modify the original TGeoHMatrix of the sensitive module 'voluid' according
186 // with a delta transform. applied to the supermodule matrix
187 // return NULL if error
189 if (!IsIn(voluid)) return NULL;
190 if (!gGeoManager) return NULL;
192 // prepare the TGeoHMatrix
193 Double_t tr[3],ang[3];
194 tr[0]=deltalocal[0]; // in centimeter
197 ang[0]=deltalocal[3]; // psi (X) in deg
198 ang[1]=deltalocal[4]; // theta (Y)
199 ang[2]=deltalocal[5]; // phi (Z)
201 // reset align object (may not be needed...)
202 fTempAlignObj->SetTranslation(0,0,0);
203 fTempAlignObj->SetRotation(0,0,0);
205 fTempAlignObj->SetRotation(ang[0],ang[1],ang[2]);
206 fTempAlignObj->SetTranslation(tr[0],tr[1],tr[2]);
207 AliDebug(3,Form("Delta angles: psi=%f theta=%f phi=%f",ang[0],ang[1],ang[2]));
209 fTempAlignObj->GetMatrix(hm);
210 //printf("\n0: delta matrix\n");hm.Print();
212 // 1) start setting fSensVolModif = fSensVol
213 if (SensVolMatrix(voluid, fSensVolModifMatrix)) return NULL;
214 //printf("\n1: modif=orig del sensvol\n");fSensVolModifMatrix->Print();
216 // 2) set fSensVolModif = SensVolRel
217 fSensVolModifMatrix->MultiplyLeft( &fMatrix->Inverse() );
218 //printf("\n2: modif=relative del sensvol\n");fSensVolModifMatrix->Print();
220 // 3) multiply left by delta
221 fSensVolModifMatrix->MultiplyLeft( &hm );
222 //printf("\n3: modif= delta*relative\n");fSensVolModifMatrix->Print();
224 // 4) multiply left by fMatrix
225 fSensVolModifMatrix->MultiplyLeft( fMatrix );
226 //printf("\n4: modif=finale\n");fSensVolModifMatrix->Print();
228 return fSensVolModifMatrix;
230 //-------------------------------------------------------------
231 AliAlignObjParams *AliITSAlignMilleModule::GetSensitiveVolumeMisalignment(UShort_t voluid, Double_t *deltalocal)
233 // calculate misalignment of sens.vol. 'voluid' according with a displacement 'deltalocal'
234 // of the mother volume. The misalignment is returned as AliAlignObjParams object
236 if (!IsIn(voluid)) return NULL;
237 if (!gGeoManager) return NULL;
239 // prepare the TGeoHMatrix
240 Double_t tr[3],ang[3];
241 tr[0]=deltalocal[0]; // in centimeter
244 ang[0]=deltalocal[3]; // psi (X) in deg
245 ang[1]=deltalocal[4]; // theta (Y)
246 ang[2]=deltalocal[5]; // phi (Z)
248 // reset align object (may not be needed...)
249 fTempAlignObj->SetTranslation(0,0,0);
250 fTempAlignObj->SetRotation(0,0,0);
252 fTempAlignObj->SetRotation(ang[0],ang[1],ang[2]);
253 fTempAlignObj->SetTranslation(tr[0],tr[1],tr[2]);
254 AliDebug(3,Form("Delta angles: psi=%f theta=%f phi=%f",ang[0],ang[1],ang[2]));
256 return GetSensitiveVolumeMisalignment(voluid,fTempAlignObj);
258 //-------------------------------------------------------------
259 AliAlignObjParams *AliITSAlignMilleModule::GetSensitiveVolumeMisalignment(UShort_t voluid, AliAlignObjParams *a)
261 // return the misalignment of the sens. vol. 'voluid' corresponding with
262 // a misalignment 'a' in the mother volume
263 // return NULL if error
265 // Gsv = Gg * Gg-1 * Gsv -> Lsv,g = Gg-1 * Gsv
266 // G'sv = Gg * Dg * Lsv,g === Gsv * Dsv
267 // Gg * Dg * Gg-1 * Gsv = Gsv * Gsv-1 * Gg * Dg * Gg-1 * Gsv
269 // => Dsv = (Gsv-1 * Gg * Dg * Gg-1 * Gsv)
272 if (!IsIn(voluid)) return NULL;
273 if (!gGeoManager) return NULL;
277 // prepare the Delta matrix Dg
282 // 1) start setting fSensVolModif = Gsv
283 if (SensVolMatrix(voluid, fSensVolModifMatrix)) return NULL;
284 //printf("\n1: modif=orig del sensvol\n");fSensVolModifMatrix->Print();
286 // 2) set fSensVolModif = Gg-1 * Gsv
287 fSensVolModifMatrix->MultiplyLeft( &fMatrix->Inverse() );
288 //printf("\n2: modif=relative del sensvol\n");fSensVolModifMatrix->Print();
290 // 3) set fSensVolModif = Dg * Gg-1 * Gsv
291 fSensVolModifMatrix->MultiplyLeft( &dg );
292 //printf("\n3: modif= delta*relative\n");fSensVolModifMatrix->Print();
294 // 4) set fSensVolModif = Gg * Dg * Gg-1 * Gsv
295 fSensVolModifMatrix->MultiplyLeft( fMatrix );
296 //printf("\n4: modif=quasi,manca il Gsv-1...\n");fSensVolModifMatrix->Print();
298 // 5) set fSensVolModif = Gsv-1 * Gg * Dg * Gg-1 * Gsv
299 if (SensVolMatrix(voluid, &dg)) return NULL;
300 fSensVolModifMatrix->MultiplyLeft( &dg.Inverse() );
301 //printf("\n5: modif=finale\n");fSensVolModifMatrix->Print();
303 // reset align object (may not be needed...)
304 fTempAlignObj->SetTranslation(0,0,0);
305 fTempAlignObj->SetRotation(0,0,0);
307 if (!fTempAlignObj->SetMatrix(*fSensVolModifMatrix)) return NULL;
308 fTempAlignObj->SetVolUID(voluid);
309 fTempAlignObj->SetSymName(AliGeomManager::SymName(voluid));
311 //fTempAlignObj->Print("");
313 return fTempAlignObj;
315 //-------------------------------------------------------------
316 TGeoHMatrix *AliITSAlignMilleModule::GetSensitiveVolumeMatrix(UShort_t voluid)
318 // return TGeoHMatrix of the sens.vol. 'voluid' in the current geometry
319 if (SensVolMatrix(voluid,fSensVolMatrix)) return NULL;
320 return fSensVolMatrix;
322 //-------------------------------------------------------------
323 TGeoHMatrix *AliITSAlignMilleModule::GetSensitiveVolumeOrigGlobalMatrix(UShort_t voluid)
325 // return original ideal position (from AliGeomManager::GetOrigGlobalMatrix())
326 if (SensVolOrigGlobalMatrix(voluid,fSensVolMatrix)) return NULL;
327 return fSensVolMatrix;
329 //-------------------------------------------------------------
330 Int_t AliITSAlignMilleModule::SensVolMatrix(UShort_t volid, TGeoHMatrix *m)
332 // set matrix for sensitive modules (SPD corrected)
333 // return 0 if success
335 Int_t idx=GetIndexFromVolumeID(volid);
336 if (idx<0) return -1;
337 if (!AliITSgeomTGeo::GetRotation(idx,rot)) return -2;
339 Double_t oLoc[3]={0,0,0};
340 Double_t oGlo[3]={0,0,0};
341 if (!AliITSgeomTGeo::LocalToGlobal(idx,oLoc,oGlo)) return -3;
342 m->SetTranslation(oGlo);
345 //-------------------------------------------------------------
346 Int_t AliITSAlignMilleModule::SensVolOrigGlobalMatrix(UShort_t volid, TGeoHMatrix *m)
348 // set original global matrix for sensitive modules (SPD corrected)
349 // return 0 if success
350 Int_t idx=GetIndexFromVolumeID(volid);
351 if (idx<0) return -1;
353 if (!(AliGeomManager::GetOrigGlobalMatrix(AliGeomManager::SymName(volid),mo))) return -1;
356 // SPD y-shift by 81 mu
358 Double_t oLoc[3]={0.0,0.0081,0.0};
359 Double_t oGlo[3]={0,0,0};
360 m->LocalToMaster(oLoc,oGlo);
361 m->SetTranslation(oGlo);
365 //-------------------------------------------------------------
366 UShort_t AliITSAlignMilleModule::GetVolumeIDFromSymname(const Char_t *symname) {
367 /// volume ID from symname
368 if (!symname) return 0;
370 for (UShort_t voluid=2000; voluid<13300; voluid++) {
372 AliGeomManager::ELayerID layerId = AliGeomManager::VolUIDToLayer(voluid,modId);
373 if (layerId>0 && layerId<7 && modId>=0 && modId<AliGeomManager::LayerSize(layerId)) {
374 if (!strcmp(symname,AliGeomManager::SymName(layerId,modId))) return voluid;
381 UShort_t AliITSAlignMilleModule::GetVolumeIDFromIndex(Int_t index) {
382 /// volume ID from index
383 if (index<0 || index>2197) return 0;
384 return GetVolumeIDFromSymname(AliITSgeomTGeo::GetSymName(index));
386 //-------------------------------------------------------------
387 void AliITSAlignMilleModule::Print(Option_t*) const
390 printf("*** ITS SuperModule for AliITSAlignMille ***\n");
391 printf("symname : %s\n",GetName());
392 printf("volumeID : %d\n",fVolumeID);
393 printf("index : %d\n",fIndex);
395 printf("number of sensitive modules : %d\n",fNSensVol);
396 for (Int_t i=0; i<fNSensVol; i++) printf(" voluid[%d] = %d\n",i,fSensVolVolumeID[i]);
398 //_____________________________________________________________________________
399 AliITSAlignMilleModule::AliITSAlignMilleModule(const AliITSAlignMilleModule &m) :
401 fNSensVol(m.fNSensVol),
403 fVolumeID(m.fVolumeID),
404 fMatrix(new TGeoHMatrix(*m.GetMatrix())),
405 fSensVolMatrix(new TGeoHMatrix),
406 fSensVolModifMatrix(new TGeoHMatrix),
407 fTempAlignObj(new AliAlignObjParams)
410 for (int i=0; i<fNSensVol; i++) {
411 fSensVolIndex[i]=m.fSensVolIndex[i];
412 fSensVolVolumeID[i]=m.fSensVolVolumeID[i];
415 //_____________________________________________________________________________
416 AliITSAlignMilleModule& AliITSAlignMilleModule::operator=(const AliITSAlignMilleModule &m)
420 if(this==&m) return *this;
421 ((TNamed *)this)->operator=(m);
423 fNSensVol=m.fNSensVol;
425 fVolumeID=m.fVolumeID;
427 fMatrix=new TGeoHMatrix(*m.GetMatrix());
428 for (int i=0; i<fNSensVol; i++) {
429 fSensVolIndex[i]=m.fSensVolIndex[i];
430 fSensVolVolumeID[i]=m.fSensVolVolumeID[i];
435 //_____________________________________________________________________________