1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 /* $Id: AliPHOSGeometry.cxx 25590 2008-05-06 07:09:11Z prsnko $ */
18 //_________________________________________________________________________
19 // Geometry class for PHOS
20 // PHOS consists of the electromagnetic calorimeter (EMCA)
21 // and a charged particle veto (CPV)
22 // The EMCA/CPV modules are parametrized so that any configuration
23 // can be easily implemented
24 // The title is used to identify the version of CPV used.
26 // -- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC "KI" & SUBATECH)
28 // --- ROOT system ---
30 #include "TClonesArray.h"
32 #include "TParticle.h"
33 #include <TGeoManager.h>
34 #include <TGeoMatrix.h>
36 // --- Standard library ---
38 // --- AliRoot header files ---
39 #include "AliPHOSEMCAGeometry.h"
40 #include "AliPHOSCPVGeometry.h"
41 #include "AliPHOSSupportGeometry.h"
42 #include "AliPHOSGeoUtils.h"
44 ClassImp(AliPHOSGeoUtils)
46 //____________________________________________________________________________
47 AliPHOSGeoUtils::AliPHOSGeoUtils():
48 fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0),
49 fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0),
50 fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0),
51 fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0),
52 fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.),
53 fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0)
57 // must be kept public for root persistency purposes, but should never be called by the outside world
60 //____________________________________________________________________________
61 AliPHOSGeoUtils::AliPHOSGeoUtils(const AliPHOSGeoUtils & rhs)
63 fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0),
64 fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0),
65 fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0),
66 fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0),
67 fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.),
68 fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0)
70 Fatal("cpy ctor", "not implemented") ;
73 //____________________________________________________________________________
74 AliPHOSGeoUtils::AliPHOSGeoUtils(const Text_t* name, const Text_t* title)
75 : TNamed(name, title),
76 fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0),
77 fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0),
78 fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0),
79 fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0),
80 fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.),
81 fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0)
83 // ctor only for normal usage
85 fGeometryEMCA = new AliPHOSEMCAGeometry() ;
86 fGeometryCPV = new AliPHOSCPVGeometry() ;
87 fGeometrySUPP = new AliPHOSSupportGeometry() ;
90 fNPhi = fGeometryEMCA->GetNPhi() ;
91 fNZ = fGeometryEMCA->GetNZ() ;
92 fNCristalsInModule = fNPhi*fNZ ;
93 fNCellsXInStrip= fGeometryEMCA->GetNCellsXInStrip() ;
94 fNCellsZInStrip= fGeometryEMCA->GetNCellsZInStrip() ;
95 fNStripZ = fGeometryEMCA->GetNStripZ() ;
96 fXtlArrSize[0]=fGeometryEMCA->GetInnerThermoHalfSize()[0] ; //Wery close to the zise of the Xtl set
97 fXtlArrSize[1]=fGeometryEMCA->GetInnerThermoHalfSize()[1] ; //Wery close to the zise of the Xtl set
98 fXtlArrSize[2]=fGeometryEMCA->GetInnerThermoHalfSize()[2] ; //Wery close to the zise of the Xtl set
100 //calculate offset to crystal surface
101 const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ;
102 const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ;
103 const Float_t * splate = fGeometryEMCA->GetSupportPlateHalfSize();
104 const Float_t * crystal = fGeometryEMCA->GetCrystalHalfSize() ;
105 const Float_t * pin = fGeometryEMCA->GetAPDHalfSize() ;
106 const Float_t * preamp = fGeometryEMCA->GetPreampHalfSize() ;
107 fCrystalShift=-inthermo[1]+strip[1]+splate[1]+crystal[1]-fGeometryEMCA->GetAirGapLed()/2.+pin[1]+preamp[1] ;
108 fCryCellShift=crystal[1]-(fGeometryEMCA->GetAirGapLed()-2*pin[1]-2*preamp[1])/2;
109 fCryStripShift=fCryCellShift+splate[1] ;
110 fCellStep = 2.*fGeometryEMCA->GetAirCellHalfSize()[0] ;
112 fNumberOfCPVPadsPhi = fGeometryCPV->GetNumberOfCPVPadsPhi() ;
113 fNumberOfCPVPadsZ = fGeometryCPV->GetNumberOfCPVPadsZ() ;
114 fPadSizePhi = fGeometryCPV->GetCPVPadSizePhi() ;
115 fPadSizeZ = fGeometryCPV->GetCPVPadSizeZ() ;
116 fCPVBoxSizeY= fGeometryCPV->GetCPVBoxSize(1) ;
118 for(Int_t mod=0; mod<5; mod++){
120 for(Int_t istrip=0; istrip<224; istrip++)
121 fStripMatrix[mod][istrip]=0 ;
128 //____________________________________________________________________________
129 AliPHOSGeoUtils & AliPHOSGeoUtils::operator = (const AliPHOSGeoUtils & /*rvalue*/) {
131 Fatal("assignment operator", "not implemented") ;
135 //____________________________________________________________________________
136 AliPHOSGeoUtils::~AliPHOSGeoUtils(void)
140 delete fGeometryEMCA; fGeometryEMCA = 0 ;
143 delete fGeometryCPV; fGeometryCPV=0 ;
146 delete fGeometrySUPP ; fGeometrySUPP=0 ;
149 delete fMisalArray; fMisalArray=0 ;
152 //____________________________________________________________________________
153 Bool_t AliPHOSGeoUtils::AbsToRelNumbering(Int_t absId, Int_t * relid) const
155 // Converts the absolute numbering into the following array
156 // relid[0] = PHOS Module number 1:fNModules
157 // relid[1] = 0 if PbW04
159 // relid[2] = Row number inside a PHOS module
160 // relid[3] = Column number inside a PHOS module
164 Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / fNCristalsInModule ) ;
166 if ( phosmodulenumber > fNModules ) { // it is a CPV pad
168 id -= fNPhi * fNZ * fNModules ;
169 Float_t nCPV = fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ ;
170 relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ;
172 id -= ( relid[0] - 1 ) * nCPV ;
173 relid[2] = (Int_t) TMath::Ceil( id / fNumberOfCPVPadsZ ) ;
174 relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * fNumberOfCPVPadsZ ) ;
176 else { // it is a PW04 crystal
178 relid[0] = phosmodulenumber ;
180 id -= ( phosmodulenumber - 1 ) * fNPhi * fNZ ;
181 relid[2] = (Int_t)TMath::Ceil( id / fNZ ) ;
182 relid[3] = (Int_t)( id - ( relid[2] - 1 ) * fNZ ) ;
186 //____________________________________________________________________________
187 Bool_t AliPHOSGeoUtils::RelToAbsNumbering(const Int_t * relid, Int_t & absId) const
189 // Converts the relative numbering into the absolute numbering
191 // absId = from 1 to fNModules * fNPhi * fNZ
193 // absId = from N(total PHOS crystals) + 1
194 // to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ
196 if ( relid[1] == 0 ) { // it is a Phos crystal
198 ( relid[0] - 1 ) * fNPhi * fNZ // the offset of PHOS modules
199 + ( relid[2] - 1 ) * fNZ // the offset along phi
200 + relid[3] ; // the offset along z
202 else { // it is a CPV pad
203 absId = fNPhi * fNZ * fNModules // the offset to separate EMCA crystals from CPV pads
204 + ( relid[0] - 1 ) * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ // the pads offset of PHOS modules
205 + ( relid[2] - 1 ) * fNumberOfCPVPadsZ // the pads offset of a CPV row
206 + relid[3] ; // the column number
212 //____________________________________________________________________________
213 void AliPHOSGeoUtils::RelPosInModule(const Int_t * relid, Float_t & x, Float_t & z) const
215 // Converts the relative numbering into the local PHOS-module (x, z) coordinates
217 if(relid[1]==0){ //this is PHOS
219 Double_t pos[3]= {0.0,-fCryCellShift,0.}; //Position incide the crystal
220 Double_t posC[3]={0.0,0.0,0.}; //Global position
222 //Shift and possibly apply misalignment corrections
223 Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ-
224 (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ;
225 pos[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ;
226 pos[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ;
228 Int_t mod = relid[0] ;
229 const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ;
230 m2->LocalToMaster(pos,posC);
232 //Return to PHOS local system
233 Double_t posL2[3]={posC[0],posC[1],posC[2]};
234 const TGeoHMatrix *mPHOS2 = GetMatrixForModule(mod) ;
235 mPHOS2->MasterToLocal(posC,posL2);
241 //first calculate position with respect to CPV plain
242 Int_t row = relid[2] ; //offset along x axis
243 Int_t column = relid[3] ; //offset along z axis
244 Double_t pos[3]= {0.0,0.0,0.}; //Position incide the CPV printed circuit
245 Double_t posC[3]={0.0,0.0,0.}; //Global position
246 pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect
247 pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module
249 //now apply possible shifts and rotations
250 const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ;
251 m->LocalToMaster(pos,posC);
252 //Return to PHOS local system
253 Double_t posL[3]={0.,0.,0.,} ;
254 const TGeoHMatrix *mPHOS = GetMatrixForPHOS(relid[0]) ;
255 mPHOS->MasterToLocal(posC,posL);
263 //____________________________________________________________________________
264 void AliPHOSGeoUtils::RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & absId) const
266 // converts local PHOS-module (x, z) coordinates to absId
268 //Calculate AbsId using ideal geometry. Should be sufficient for primary particles calculation
269 //(the only place where this method used currently)
270 Int_t relid[4]={module,0,1,1} ;
271 relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) );
272 relid[3] = static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ;
273 if(relid[2]<1)relid[2]=1 ;
274 if(relid[3]<1)relid[3]=1 ;
275 if(relid[2]>fNPhi)relid[2]=fNPhi ;
276 if(relid[3]>fNZ)relid[3]=fNZ ;
277 RelToAbsNumbering(relid,absId) ;
280 //find Global position
282 printf("Geo manager not initialized\n");
285 Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!!
288 sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",module) ;
289 if (!gGeoManager->cd(path)){
290 printf("Geo manager can not find path \n");
293 TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix();
295 mPHOS->LocalToMaster(posL,posG);
298 printf("Geo matrixes are not loaded \n") ;
303 gGeoManager->FindNode(posG[0],posG[1],posG[2]) ;
304 //Check that path contains PSTR and extract strip number
305 TString cpath(gGeoManager->GetPath()) ;
306 Int_t indx = cpath.Index("PCEL") ;
307 if(indx==-1){ //for the few events when particle hits between srips use ideal geometry
310 relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) );
311 relid[3] = static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ;
312 if(relid[2]<1)relid[2]=1 ;
313 if(relid[3]<1)relid[3]=1 ;
314 if(relid[2]>fNPhi)relid[2]=fNPhi ;
315 if(relid[3]>fNZ)relid[3]=fNZ ;
316 RelToAbsNumbering(relid,absId) ;
319 Int_t indx2 = cpath.Index("/",indx) ;
321 indx2=cpath.Length() ;
322 TString cell=cpath(indx+5,indx2-indx-5) ;
323 Int_t icell=cell.Atoi() ;
324 indx = cpath.Index("PSTR") ;
325 indx2 = cpath.Index("/",indx) ;
326 TString strip=cpath(indx+5,indx2-indx-5) ;
327 Int_t iStrip = strip.Atoi() ;
329 Int_t row = fNStripZ - (iStrip - 1) % (fNStripZ) ;
330 Int_t col = (Int_t) TMath::Ceil((Double_t) iStrip/(fNStripZ)) -1 ;
332 // Absid for 8x2-strips. Looks nice :)
333 absId = (module-1)*fNCristalsInModule +
334 row * 2 + (col*fNCellsXInStrip + (icell - 1) / 2)*fNZ - (icell & 1 ? 1 : 0);
341 //____________________________________________________________________________
342 void AliPHOSGeoUtils::RelPosToRelId(Int_t module, Double_t x, Double_t z, Int_t * relId) const
344 //Evaluates RelId of the crystall with given coordinates
347 RelPosToAbsId(module, x,z,absId) ;
348 AbsToRelNumbering(absId,relId) ;
351 //____________________________________________________________________________
352 void AliPHOSGeoUtils::RelPosInAlice(Int_t id, TVector3 & pos ) const
354 // Converts the absolute numbering into the global ALICE coordinate system
357 printf("Geo manager not initialized\n");
363 AbsToRelNumbering(id , relid) ;
365 //construct module name
366 if(relid[1]==0){ //this is EMC
368 Double_t ps[3]= {0.0,-fCryStripShift,0.}; //Position incide the crystal
369 Double_t psC[3]={0.0,0.0,0.}; //Global position
371 //Shift and possibly apply misalignment corrections
372 Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ-
373 (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ;
374 ps[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ;
375 ps[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ;
377 Int_t mod = relid[0] ;
378 const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ;
379 m2->LocalToMaster(ps,psC);
380 pos.SetXYZ(psC[0],psC[1],psC[2]) ;
384 //first calculate position with respect to CPV plain
385 Int_t row = relid[2] ; //offset along x axis
386 Int_t column = relid[3] ; //offset along z axis
387 Double_t ps[3]= {0.0,fCPVBoxSizeY/2.,0.}; //Position on top of CPV
388 Double_t psC[3]={0.0,0.0,0.}; //Global position
389 pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect
390 pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module
392 //now apply possible shifts and rotations
393 const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ;
394 m->LocalToMaster(ps,psC);
395 pos.SetXYZ(psC[0],psC[1],-psC[2]) ;
399 //____________________________________________________________________________
400 void AliPHOSGeoUtils::Local2Global(Int_t mod, Float_t x, Float_t z,
401 TVector3& globalPosition) const
403 Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!!
405 const TGeoHMatrix *mPHOS = GetMatrixForModule(mod) ;
406 mPHOS->LocalToMaster(posL,posG);
407 globalPosition.SetXYZ(posG[0],posG[1],posG[2]) ;
409 //____________________________________________________________________________
410 void AliPHOSGeoUtils::Global2Local(TVector3& localPosition,
411 const TVector3& globalPosition,
414 // Transforms a global position to the local coordinate system
416 //Return to PHOS local system
417 Double_t posG[3]={globalPosition.X(),globalPosition.Y(),globalPosition.Z()} ;
418 Double_t posL[3]={0.,0.,0.} ;
419 const TGeoHMatrix *mPHOS = GetMatrixForModule(module) ;
420 mPHOS->MasterToLocal(posG,posL);
421 localPosition.SetXYZ(posL[0],posL[1]+fCrystalShift,-posL[2]) ;
424 //____________________________________________________________________________
425 Bool_t AliPHOSGeoUtils::GlobalPos2RelId(TVector3 & global, Int_t * relId){
426 //Converts position in global ALICE coordinates to relId
427 //returns false if x,z coordinates are beyond PHOS
428 //distande to PHOS surface is NOT calculated
430 for(Int_t mod=1; mod<fNModules; mod++){
431 Global2Local(loc,global,mod) ;
433 if((TMath::Abs(loc.Z())<fXtlArrSize[2]) && (TMath::Abs(loc.X())<fXtlArrSize[0])){
434 RelPosToRelId(mod,loc.X(),loc.Z(),relId);
441 //____________________________________________________________________________
442 Bool_t AliPHOSGeoUtils::ImpactOnEmc(const TParticle * particle,
443 Int_t & moduleNumber, Double_t & z, Double_t & x) const
445 // Tells if a particle enters PHOS and evaluates hit position
446 Double_t vtx[3]={particle->Vx(),particle->Vy(),particle->Vz()} ;
447 return ImpactOnEmc(vtx,particle->Theta(),particle->Phi(),moduleNumber,z,x);
450 //____________________________________________________________________________
451 Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, Double_t theta, Double_t phi,
452 Int_t & moduleNumber, Double_t & z, Double_t & x) const
454 // calculates the impact coordinates on PHOS of a neutral particle
455 // emitted in the vertex vtx[3] with direction vec(p) in the ALICE global coordinate system
456 TVector3 p(TMath::Sin(theta)*TMath::Cos(phi),TMath::Sin(theta)*TMath::Sin(phi),TMath::Cos(theta)) ;
457 return ImpactOnEmc(vtx,p,moduleNumber,z,x) ;
460 //____________________________________________________________________________
461 Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, const TVector3 &p,
462 Int_t & moduleNumber, Double_t & z, Double_t & x) const
464 // calculates the impact coordinates on PHOS of a neutral particle
465 // emitted in the vertex vtx[3] with direction theta and phi in the ALICE global coordinate system
466 TVector3 v(vtx[0],vtx[1],vtx[2]) ;
468 for(Int_t imod=1; imod<=fNModules ; imod++){
469 //create vector from (0,0,0) to center of crystal surface of imod module
470 Double_t tmp[3]={0.,-fCrystalShift,0.} ;
472 const TGeoHMatrix *m = GetMatrixForModule(imod) ;
473 Double_t posG[3]={0.,0.,0.} ;
474 m->LocalToMaster(tmp,posG);
475 TVector3 n(posG[0],posG[1],posG[2]) ;
476 Double_t direction=n.Dot(p) ;
478 continue ; //momentum directed FROM module
479 Double_t fr = (n.Mag2()-n.Dot(v))/direction ;
480 //Calculate direction in module plain
483 if(TMath::Abs(TMath::Abs(n.Z())<fXtlArrSize[2]) && n.Pt()<fXtlArrSize[0]){
484 moduleNumber = imod ;
486 x=TMath::Sign(n.Pt(),n.X()) ;
487 //no need to return to local system since we calcilated distance from module center
488 //and tilts can not be significant.
498 //____________________________________________________________________________
499 void AliPHOSGeoUtils::GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x,Float_t z, TVector3 &vInc) const {
500 //Calculates vector pointing from vertex to current poisition in module local frame
501 //Note that PHOS local system and ALICE global have opposite z directions
503 Global2Local(vInc,vtx,module) ;
504 vInc.SetXYZ(vInc.X()+x,vInc.Y(),vInc.Z()+z) ;
506 //____________________________________________________________________________
507 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForModule(Int_t mod)const {
508 //Provides shift-rotation matrix for module mod
510 //If GeoManager exists, take matrixes from it
513 sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",mod) ;
514 // sprintf(path,"/ALIC_1/PHOS_%d",relid[0]) ;
515 if (!gGeoManager->cd(path)){
516 printf("Geo manager can not find path \n");
519 return gGeoManager->GetCurrentMatrix();
521 if(fEMCMatrix[mod-1]){
522 return fEMCMatrix[mod-1] ;
525 printf("Can not find PHOS misalignment matrixes\n") ;
526 printf("Either import TGeoManager from geometry.root or \n");
527 printf("read stored matrixes from AliESD Header: \n") ;
528 printf("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
533 //____________________________________________________________________________
534 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForStrip(Int_t mod, Int_t strip)const {
535 //Provides shift-rotation matrix for strip unit of the module mod
537 //If GeoManager exists, take matrixes from it
540 sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1/PSTR_%d",mod,strip) ;
541 if (!gGeoManager->cd(path)){
542 printf("Geo manager can not find path \n");
545 return gGeoManager->GetCurrentMatrix();
547 if(fStripMatrix[mod-1][strip-1]){
548 return fStripMatrix[mod-1][strip-1] ;
551 printf("Can not find PHOS misalignment matrixes\n") ;
552 printf("Either import TGeoManager from geometry.root or \n");
553 printf("read stored matrixes from AliESD Header: \n") ;
554 printf("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
559 //____________________________________________________________________________
560 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForCPV(Int_t mod)const {
561 //Provides shift-rotation matrix for CPV of the module mod
563 //If GeoManager exists, take matrixes from it
566 //now apply possible shifts and rotations
567 sprintf(path,"/ALIC_1/PHOS_%d/PCPV_1",mod) ;
568 if (!gGeoManager->cd(path)){
569 printf("Geo manager can not find path \n");
572 return gGeoManager->GetCurrentMatrix();
574 if(fCPVMatrix[mod-1]){
575 return fCPVMatrix[mod-1] ;
578 printf("Can not find PHOS misalignment matrixes\n") ;
579 printf("Either import TGeoManager from geometry.root or \n");
580 printf("read stored matrixes from AliESD Header: \n") ;
581 printf("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
586 //____________________________________________________________________________
587 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForPHOS(Int_t mod)const {
588 //Provides shift-rotation matrix for PHOS (EMC+CPV)
590 //If GeoManager exists, take matrixes from it
593 sprintf(path,"/ALIC_1/PHOS_%d",mod) ;
594 if (!gGeoManager->cd(path)){
595 printf("Geo manager can not find path \n");
598 return gGeoManager->GetCurrentMatrix();
600 if(fPHOSMatrix[mod-1]){
601 return fPHOSMatrix[mod-1] ;
604 printf("Can not find PHOS misalignment matrixes\n") ;
605 printf("Either import TGeoManager from geometry.root or \n");
606 printf("read stored matrixes from AliESD Header: \n") ;
607 printf("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
612 //____________________________________________________________________________
613 void AliPHOSGeoUtils::SetMisalMatrix(const TGeoHMatrix * m, Int_t mod){
614 //Fills pointers to geo matrixes
618 //If modules does not exist, make sure all its matrixes are zero
620 fEMCMatrix[mod]=NULL ;
622 for(Int_t irow = 0; irow < fGeometryEMCA->GetNStripX(); irow ++){
623 for(Int_t icol = 0; icol < fGeometryEMCA->GetNStripZ(); icol ++){
624 fStripMatrix[mod][istrip]=NULL ;
627 fCPVMatrix[mod]=NULL ;
631 //Calculate maxtrixes for PTII
633 fMisalArray = new TClonesArray("TGeoHMatrix",1120+10) ;
634 Int_t nr = fMisalArray->GetEntriesFast() ;
635 Double_t rotEMC[9]={1.,0.,0.,0.,0.,-1.,0.,1.,0.} ;
636 const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ;
637 const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ;
638 const Float_t * covparams = fGeometryEMCA->GetAlCoverParams() ;
639 const Float_t * warmcov = fGeometryEMCA->GetWarmAlCoverHalfSize() ;
640 Float_t z = fGeometryCPV->GetCPVBoxSize(1) / 2. - warmcov[2] + covparams[3]-inthermo[1] ;
641 Double_t locTII[3]={0.,0.,z} ;
642 Double_t globTII[3] ;
644 TGeoHMatrix * mTII = new((*fMisalArray)[nr])TGeoHMatrix() ;
646 mTII->SetRotation(rotEMC) ;
647 mTII->MultiplyLeft(fPHOSMatrix[mod]) ;
648 fPHOSMatrix[mod]->LocalToMaster(locTII,globTII) ;
649 mTII->SetTranslation(globTII) ;
650 fEMCMatrix[mod]=mTII ;
652 //Now calculate ideal matrixes for strip misalignment.
653 //For the moment we can not store them in ESDHeader
655 Double_t loc[3]={0.,inthermo[1] - strip[1],0.} ;
659 for(Int_t irow = 0; irow < fGeometryEMCA->GetNStripX(); irow ++){
660 loc[0] = (2*irow + 1 - fGeometryEMCA->GetNStripX())* strip[0] ;
661 for(Int_t icol = 0; icol < fGeometryEMCA->GetNStripZ(); icol ++){
662 loc[2] = (2*icol + 1 - fGeometryEMCA->GetNStripZ()) * strip[2] ;
663 fEMCMatrix[mod]->LocalToMaster(loc,glob) ;
664 TGeoHMatrix * mSTR = new((*fMisalArray)[nr])TGeoHMatrix(*(fEMCMatrix[mod])) ; //Use same rotation as PHOS module
666 mSTR->SetTranslation(glob) ;
667 fStripMatrix[mod][istrip]=mSTR ;
672 //Now calculate CPV matrixes
673 const Float_t * emcParams = fGeometryEMCA->GetEMCParams() ;
674 Double_t globCPV[3] ;
675 Double_t locCPV[3]={0.,0.,- emcParams[3]} ;
676 Double_t rot[9]={1.,0.,0.,0.,0.,1.,0.,-1.,0.} ;
678 TGeoHMatrix * mCPV = new((*fMisalArray)[nr])TGeoHMatrix() ;
680 mCPV->SetRotation(rot) ;
681 mCPV->MultiplyLeft(fPHOSMatrix[mod]) ;
682 mCPV->ReflectY(kFALSE) ;
683 fPHOSMatrix[mod]->LocalToMaster(locCPV,globCPV) ;
684 mCPV->SetTranslation(globCPV) ;
685 fCPVMatrix[mod]=mCPV ;