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 *
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12 * about the suitability of this software for any purpose. It is *
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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 ---
40 #include "AliPHOSEMCAGeometry.h"
41 #include "AliPHOSCPVGeometry.h"
42 #include "AliPHOSSupportGeometry.h"
43 #include "AliPHOSGeoUtils.h"
45 ClassImp(AliPHOSGeoUtils)
47 //____________________________________________________________________________
48 AliPHOSGeoUtils::AliPHOSGeoUtils():
49 fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0),
50 fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0),
51 fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0),
52 fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0),
53 fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.),
54 fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0)
58 // must be kept public for root persistency purposes, but should never be called by the outside world
61 //____________________________________________________________________________
62 AliPHOSGeoUtils::AliPHOSGeoUtils(const AliPHOSGeoUtils & rhs)
64 fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0),
65 fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0),
66 fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0),
67 fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0),
68 fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.),
69 fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0)
71 Fatal("cpy ctor", "not implemented") ;
74 //____________________________________________________________________________
75 AliPHOSGeoUtils::AliPHOSGeoUtils(const Text_t* name, const Text_t* title)
76 : TNamed(name, title),
77 fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0),
78 fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0),
79 fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0),
80 fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0),
81 fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.),
82 fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0)
84 // ctor only for normal usage
86 fGeometryEMCA = new AliPHOSEMCAGeometry() ;
87 fGeometryCPV = new AliPHOSCPVGeometry() ;
88 fGeometrySUPP = new AliPHOSSupportGeometry() ;
91 fNPhi = fGeometryEMCA->GetNPhi() ;
92 fNZ = fGeometryEMCA->GetNZ() ;
93 fNCristalsInModule = fNPhi*fNZ ;
94 fNCellsXInStrip= fGeometryEMCA->GetNCellsXInStrip() ;
95 fNCellsZInStrip= fGeometryEMCA->GetNCellsZInStrip() ;
96 fNStripZ = fGeometryEMCA->GetNStripZ() ;
97 fXtlArrSize[0]=fGeometryEMCA->GetInnerThermoHalfSize()[0] ; //Wery close to the zise of the Xtl set
98 fXtlArrSize[1]=fGeometryEMCA->GetInnerThermoHalfSize()[1] ; //Wery close to the zise of the Xtl set
99 fXtlArrSize[2]=fGeometryEMCA->GetInnerThermoHalfSize()[2] ; //Wery close to the zise of the Xtl set
101 //calculate offset to crystal surface
102 const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ;
103 const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ;
104 const Float_t * splate = fGeometryEMCA->GetSupportPlateHalfSize();
105 const Float_t * crystal = fGeometryEMCA->GetCrystalHalfSize() ;
106 const Float_t * pin = fGeometryEMCA->GetAPDHalfSize() ;
107 const Float_t * preamp = fGeometryEMCA->GetPreampHalfSize() ;
108 fCrystalShift=-inthermo[1]+strip[1]+splate[1]+crystal[1]-fGeometryEMCA->GetAirGapLed()/2.+pin[1]+preamp[1] ;
109 fCryCellShift=crystal[1]-(fGeometryEMCA->GetAirGapLed()-2*pin[1]-2*preamp[1])/2;
110 fCryStripShift=fCryCellShift+splate[1] ;
111 fCellStep = 2.*fGeometryEMCA->GetAirCellHalfSize()[0] ;
113 fNumberOfCPVPadsPhi = fGeometryCPV->GetNumberOfCPVPadsPhi() ;
114 fNumberOfCPVPadsZ = fGeometryCPV->GetNumberOfCPVPadsZ() ;
115 fPadSizePhi = fGeometryCPV->GetCPVPadSizePhi() ;
116 fPadSizeZ = fGeometryCPV->GetCPVPadSizeZ() ;
117 fCPVBoxSizeY= fGeometryCPV->GetCPVBoxSize(1) ;
119 for(Int_t mod=0; mod<5; mod++){
121 for(Int_t istrip=0; istrip<224; istrip++)
122 fStripMatrix[mod][istrip]=0 ;
129 //____________________________________________________________________________
130 AliPHOSGeoUtils & AliPHOSGeoUtils::operator = (const AliPHOSGeoUtils & /*rvalue*/) {
132 Fatal("assignment operator", "not implemented") ;
136 //____________________________________________________________________________
137 AliPHOSGeoUtils::~AliPHOSGeoUtils(void)
141 delete fGeometryEMCA; fGeometryEMCA = 0 ;
144 delete fGeometryCPV; fGeometryCPV=0 ;
147 delete fGeometrySUPP ; fGeometrySUPP=0 ;
150 delete fMisalArray; fMisalArray=0 ;
153 for(Int_t mod=0; mod<5; mod++){
154 delete fEMCMatrix[mod] ;
155 for(Int_t istrip=0; istrip<224; istrip++)
156 delete fStripMatrix[mod][istrip];
157 delete fCPVMatrix[mod];
158 // delete fPHOSMatrix[mod];
161 //____________________________________________________________________________
162 Bool_t AliPHOSGeoUtils::AbsToRelNumbering(Int_t absId, Int_t * relid) const
164 // Converts the absolute numbering into the following array
165 // relid[0] = PHOS Module number 1:fNModules
166 // relid[1] = 0 if PbW04
168 // relid[2] = Row number inside a PHOS module
169 // relid[3] = Column number inside a PHOS module
173 Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / fNCristalsInModule ) ;
175 if ( phosmodulenumber > fNModules ) { // it is a CPV pad
177 id -= fNPhi * fNZ * fNModules ;
178 Float_t nCPV = fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ ;
179 relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ;
181 id -= ( relid[0] - 1 ) * nCPV ;
182 relid[2] = (Int_t) TMath::Ceil( id / fNumberOfCPVPadsZ ) ;
183 relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * fNumberOfCPVPadsZ ) ;
185 else { // it is a PW04 crystal
187 relid[0] = phosmodulenumber ;
189 id -= ( phosmodulenumber - 1 ) * fNPhi * fNZ ;
190 relid[2] = (Int_t)TMath::Ceil( id / fNZ ) ;
191 relid[3] = (Int_t)( id - ( relid[2] - 1 ) * fNZ ) ;
195 //____________________________________________________________________________
196 Bool_t AliPHOSGeoUtils::RelToAbsNumbering(const Int_t * relid, Int_t & absId) const
198 // Converts the relative numbering into the absolute numbering
200 // absId = from 1 to fNModules * fNPhi * fNZ
202 // absId = from N(total PHOS crystals) + 1
203 // to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ
205 if ( relid[1] == 0 ) { // it is a Phos crystal
207 ( relid[0] - 1 ) * fNPhi * fNZ // the offset of PHOS modules
208 + ( relid[2] - 1 ) * fNZ // the offset along phi
209 + relid[3] ; // the offset along z
211 else { // it is a CPV pad
212 absId = fNPhi * fNZ * fNModules // the offset to separate EMCA crystals from CPV pads
213 + ( relid[0] - 1 ) * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ // the pads offset of PHOS modules
214 + ( relid[2] - 1 ) * fNumberOfCPVPadsZ // the pads offset of a CPV row
215 + relid[3] ; // the column number
221 //____________________________________________________________________________
222 void AliPHOSGeoUtils::RelPosInModule(const Int_t * relid, Float_t & x, Float_t & z) const
224 // Converts the relative numbering into the local PHOS-module (x, z) coordinates
226 if(relid[1]==0){ //this is PHOS
228 Double_t pos[3]= {0.0,-fCryCellShift,0.}; //Position incide the crystal
229 Double_t posC[3]={0.0,0.0,0.}; //Global position
231 //Shift and possibly apply misalignment corrections
232 Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ-
233 (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ;
234 pos[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ;
235 pos[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ;
237 Int_t mod = relid[0] ;
238 const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ;
239 m2->LocalToMaster(pos,posC);
241 //Return to PHOS local system
242 Double_t posL2[3]={posC[0],posC[1],posC[2]};
243 const TGeoHMatrix *mPHOS2 = GetMatrixForModule(mod) ;
244 mPHOS2->MasterToLocal(posC,posL2);
250 //first calculate position with respect to CPV plain
251 Int_t row = relid[2] ; //offset along x axis
252 Int_t column = relid[3] ; //offset along z axis
253 Double_t pos[3]= {0.0,0.0,0.}; //Position incide the CPV printed circuit
254 Double_t posC[3]={0.0,0.0,0.}; //Global position
255 pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect
256 pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module
258 //now apply possible shifts and rotations
259 const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ;
260 m->LocalToMaster(pos,posC);
261 //Return to PHOS local system
262 Double_t posL[3]={0.,0.,0.,} ;
263 const TGeoHMatrix *mPHOS = GetMatrixForPHOS(relid[0]) ;
264 mPHOS->MasterToLocal(posC,posL);
272 //____________________________________________________________________________
273 void AliPHOSGeoUtils::RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & absId) const
275 // converts local PHOS-module (x, z) coordinates to absId
277 //Calculate AbsId using ideal geometry. Should be sufficient for primary particles calculation
278 //(the only place where this method used currently)
279 Int_t relid[4]={module,0,1,1} ;
280 relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) );
281 relid[3] = fNZ+1-static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ;
282 if(relid[2]<1)relid[2]=1 ;
283 if(relid[3]<1)relid[3]=1 ;
284 if(relid[2]>fNPhi)relid[2]=fNPhi ;
285 if(relid[3]>fNZ)relid[3]=fNZ ;
286 RelToAbsNumbering(relid,absId) ;
289 //find Global position
291 printf("Geo manager not initialized\n");
294 Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!!
297 sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",module) ;
298 if (!gGeoManager->cd(path)){
299 printf("Geo manager can not find path \n");
302 TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix();
304 mPHOS->LocalToMaster(posL,posG);
307 printf("Geo matrixes are not loaded \n") ;
312 gGeoManager->FindNode(posG[0],posG[1],posG[2]) ;
313 //Check that path contains PSTR and extract strip number
314 TString cpath(gGeoManager->GetPath()) ;
315 Int_t indx = cpath.Index("PCEL") ;
316 if(indx==-1){ //for the few events when particle hits between srips use ideal geometry
319 relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) );
320 relid[3] = static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ;
321 if(relid[2]<1)relid[2]=1 ;
322 if(relid[3]<1)relid[3]=1 ;
323 if(relid[2]>fNPhi)relid[2]=fNPhi ;
324 if(relid[3]>fNZ)relid[3]=fNZ ;
325 RelToAbsNumbering(relid,absId) ;
328 Int_t indx2 = cpath.Index("/",indx) ;
330 indx2=cpath.Length() ;
331 TString cell=cpath(indx+5,indx2-indx-5) ;
332 Int_t icell=cell.Atoi() ;
333 indx = cpath.Index("PSTR") ;
334 indx2 = cpath.Index("/",indx) ;
335 TString strip=cpath(indx+5,indx2-indx-5) ;
336 Int_t iStrip = strip.Atoi() ;
338 Int_t row = fNStripZ - (iStrip - 1) % (fNStripZ) ;
339 Int_t col = (Int_t) TMath::Ceil((Double_t) iStrip/(fNStripZ)) -1 ;
341 // Absid for 8x2-strips. Looks nice :)
342 absId = (module-1)*fNCristalsInModule +
343 row * 2 + (col*fNCellsXInStrip + (icell - 1) / 2)*fNZ - (icell & 1 ? 1 : 0);
350 //____________________________________________________________________________
351 void AliPHOSGeoUtils::RelPosToRelId(Int_t module, Double_t x, Double_t z, Int_t * relId) const
353 //Evaluates RelId of the crystall with given coordinates
356 RelPosToAbsId(module, x,z,absId) ;
357 AbsToRelNumbering(absId,relId) ;
360 //____________________________________________________________________________
361 void AliPHOSGeoUtils::RelPosInAlice(Int_t id, TVector3 & pos ) const
363 // Converts the absolute numbering into the global ALICE coordinate system
366 printf("Geo manager not initialized\n");
372 AbsToRelNumbering(id , relid) ;
374 //construct module name
375 if(relid[1]==0){ //this is EMC
377 Double_t ps[3]= {0.0,-fCryStripShift,0.}; //Position incide the crystal
378 Double_t psC[3]={0.0,0.0,0.}; //Global position
380 //Shift and possibly apply misalignment corrections
381 Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ-
382 (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ;
383 ps[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ;
384 ps[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ;
386 Int_t mod = relid[0] ;
387 const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ;
388 m2->LocalToMaster(ps,psC);
389 pos.SetXYZ(psC[0],psC[1],psC[2]) ;
393 //first calculate position with respect to CPV plain
394 Int_t row = relid[2] ; //offset along x axis
395 Int_t column = relid[3] ; //offset along z axis
396 Double_t ps[3]= {0.0,fCPVBoxSizeY/2.,0.}; //Position on top of CPV
397 Double_t psC[3]={0.0,0.0,0.}; //Global position
398 pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect
399 pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module
401 //now apply possible shifts and rotations
402 const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ;
403 m->LocalToMaster(ps,psC);
404 pos.SetXYZ(psC[0],psC[1],-psC[2]) ;
408 //____________________________________________________________________________
409 void AliPHOSGeoUtils::Local2Global(Int_t mod, Float_t x, Float_t z,
410 TVector3& globalPosition) const
412 Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!!
414 const TGeoHMatrix *mPHOS = GetMatrixForModule(mod) ;
415 mPHOS->LocalToMaster(posL,posG);
416 globalPosition.SetXYZ(posG[0],posG[1],posG[2]) ;
418 //____________________________________________________________________________
419 void AliPHOSGeoUtils::Global2Local(TVector3& localPosition,
420 const TVector3& globalPosition,
423 // Transforms a global position to the local coordinate system
425 //Return to PHOS local system
426 Double_t posG[3]={globalPosition.X(),globalPosition.Y(),globalPosition.Z()} ;
427 Double_t posL[3]={0.,0.,0.} ;
428 const TGeoHMatrix *mPHOS = GetMatrixForModule(module) ;
430 mPHOS->MasterToLocal(posG,posL);
431 localPosition.SetXYZ(posL[0],posL[1]+fCrystalShift,-posL[2]) ;
434 localPosition.SetXYZ(999.,999.,999.) ; //module does not exist in given configuration
438 //____________________________________________________________________________
439 Bool_t AliPHOSGeoUtils::GlobalPos2RelId(TVector3 & global, Int_t * relId){
440 //Converts position in global ALICE coordinates to relId
441 //returns false if x,z coordinates are beyond PHOS
442 //distande to PHOS surface is NOT calculated
444 for(Int_t mod=1; mod<=fNModules; mod++){
445 Global2Local(loc,global,mod) ;
447 if((TMath::Abs(loc.Z())<fXtlArrSize[2]) && (TMath::Abs(loc.X())<fXtlArrSize[0])){
448 RelPosToRelId(mod,loc.X(),loc.Z(),relId);
455 //____________________________________________________________________________
456 Bool_t AliPHOSGeoUtils::ImpactOnEmc(const TParticle * particle,
457 Int_t & moduleNumber, Double_t & z, Double_t & x) const
459 // Tells if a particle enters PHOS and evaluates hit position
460 Double_t vtx[3]={particle->Vx(),particle->Vy(),particle->Vz()} ;
461 return ImpactOnEmc(vtx,particle->Theta(),particle->Phi(),moduleNumber,z,x);
464 //____________________________________________________________________________
465 Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, Double_t theta, Double_t phi,
466 Int_t & moduleNumber, Double_t & z, Double_t & x) const
468 // calculates the impact coordinates on PHOS of a neutral particle
469 // emitted in the vertex vtx[3] with direction vec(p) in the ALICE global coordinate system
470 TVector3 p(TMath::Sin(theta)*TMath::Cos(phi),TMath::Sin(theta)*TMath::Sin(phi),TMath::Cos(theta)) ;
471 return ImpactOnEmc(vtx,p,moduleNumber,z,x) ;
474 //____________________________________________________________________________
475 Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, const TVector3 &p,
476 Int_t & moduleNumber, Double_t & z, Double_t & x) const
478 // calculates the impact coordinates on PHOS of a neutral particle
479 // emitted in the vertex vtx[3] with direction theta and phi in the ALICE global coordinate system
480 TVector3 v(vtx[0],vtx[1],vtx[2]) ;
482 for(Int_t imod=1; imod<=fNModules ; imod++){
483 //create vector from (0,0,0) to center of crystal surface of imod module
484 Double_t tmp[3]={0.,-fCrystalShift,0.} ;
486 const TGeoHMatrix *m = GetMatrixForModule(imod) ;
487 if(!m) //module does not exist in given configuration
489 Double_t posG[3]={0.,0.,0.} ;
490 m->LocalToMaster(tmp,posG);
491 TVector3 n(posG[0],posG[1],posG[2]) ;
492 Double_t direction=n.Dot(p) ;
494 continue ; //momentum directed FROM module
495 Double_t fr = (n.Mag2()-n.Dot(v))/direction ;
496 //Calculate direction in module plain
499 if(TMath::Abs(TMath::Abs(n.Z())<fXtlArrSize[2]) && n.Pt()<fXtlArrSize[0]){
500 moduleNumber = imod ;
502 x=TMath::Sign(n.Pt(),n.X()) ;
503 //no need to return to local system since we calcilated distance from module center
504 //and tilts can not be significant.
514 //____________________________________________________________________________
515 void AliPHOSGeoUtils::GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x,Float_t z, TVector3 &vInc) const {
516 //Calculates vector pointing from vertex to current poisition in module local frame
517 //Note that PHOS local system and ALICE global have opposite z directions
519 Global2Local(vInc,vtx,module) ;
520 vInc.SetXYZ(vInc.X()+x,vInc.Y(),vInc.Z()+z) ;
522 //____________________________________________________________________________
523 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForModule(Int_t mod)const {
524 //Provides shift-rotation matrix for module mod
526 //If GeoManager exists, take matrixes from it
529 sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",mod) ;
530 // sprintf(path,"/ALIC_1/PHOS_%d",relid[0]) ;
531 if (!gGeoManager->cd(path)){
532 AliWarning(Form("Geo manager can not find path %s \n",path));
535 return gGeoManager->GetCurrentMatrix();
537 if(fEMCMatrix[mod-1]){
538 return fEMCMatrix[mod-1] ;
541 AliWarning("Can not find PHOS misalignment matrixes\n") ;
542 AliWarning("Either import TGeoManager from geometry.root or \n");
543 AliWarning("read stored matrixes from AliESD Header: \n") ;
544 AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
549 //____________________________________________________________________________
550 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForStrip(Int_t mod, Int_t strip)const {
551 //Provides shift-rotation matrix for strip unit of the module mod
553 //If GeoManager exists, take matrixes from it
556 sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1/PSTR_%d",mod,strip) ;
557 if (!gGeoManager->cd(path)){
558 AliWarning(Form("Geo manager can not find path %s \n",path));
561 return gGeoManager->GetCurrentMatrix();
563 if(fStripMatrix[mod-1][strip-1]){
564 return fStripMatrix[mod-1][strip-1] ;
567 AliWarning("Can not find PHOS misalignment matrixes\n") ;
568 AliWarning("Either import TGeoManager from geometry.root or \n");
569 AliWarning("read stored matrixes from AliESD Header: \n") ;
570 AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
575 //____________________________________________________________________________
576 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForCPV(Int_t mod)const {
577 //Provides shift-rotation matrix for CPV of the module mod
579 //If GeoManager exists, take matrixes from it
582 //now apply possible shifts and rotations
583 sprintf(path,"/ALIC_1/PHOS_%d/PCPV_1",mod) ;
584 if (!gGeoManager->cd(path)){
585 AliWarning(Form("Geo manager can not find path %s \n",path));
588 return gGeoManager->GetCurrentMatrix();
590 if(fCPVMatrix[mod-1]){
591 return fCPVMatrix[mod-1] ;
594 AliWarning("Can not find PHOS misalignment matrixes\n") ;
595 AliWarning("Either import TGeoManager from geometry.root or \n");
596 AliWarning("read stored matrixes from AliESD Header: \n") ;
597 AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
602 //____________________________________________________________________________
603 const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForPHOS(Int_t mod)const {
604 //Provides shift-rotation matrix for PHOS (EMC+CPV)
606 //If GeoManager exists, take matrixes from it
609 sprintf(path,"/ALIC_1/PHOS_%d",mod) ;
610 if (!gGeoManager->cd(path)){
611 AliWarning(Form("Geo manager can not find path %s \n",path));
614 return gGeoManager->GetCurrentMatrix();
616 if(fPHOSMatrix[mod-1]){
617 return fPHOSMatrix[mod-1] ;
620 AliWarning("Can not find PHOS misalignment matrixes\n") ;
621 AliWarning("Either import TGeoManager from geometry.root or \n");
622 AliWarning("read stored matrixes from AliESD Header: \n") ;
623 AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ;
628 //____________________________________________________________________________
629 void AliPHOSGeoUtils::SetMisalMatrix(const TGeoHMatrix * m, Int_t mod){
630 //Fills pointers to geo matrixes
634 //If module does not exist, make sure all its matrices are zero
636 fEMCMatrix[mod]=NULL ;
638 for(Int_t irow = 0; irow < fGeometryEMCA->GetNStripX(); irow ++){
639 for(Int_t icol = 0; icol < fGeometryEMCA->GetNStripZ(); icol ++){
640 fStripMatrix[mod][istrip]=NULL ;
643 fCPVMatrix[mod]=NULL ;
647 //Calculate maxtrices for PTII
649 fMisalArray = new TClonesArray("TGeoHMatrix",1120+10) ;
650 Int_t nr = fMisalArray->GetEntriesFast() ;
651 Double_t rotEMC[9]={1.,0.,0.,0.,0.,-1.,0.,1.,0.} ;
652 const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ;
653 const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ;
654 const Float_t * covparams = fGeometryEMCA->GetAlCoverParams() ;
655 const Float_t * warmcov = fGeometryEMCA->GetWarmAlCoverHalfSize() ;
656 Float_t z = fGeometryCPV->GetCPVBoxSize(1) / 2. - warmcov[2] + covparams[3]-inthermo[1] ;
657 Double_t locTII[3]={0.,0.,z} ;
658 Double_t globTII[3] ;
660 if (fEMCMatrix[mod] == NULL)
661 fEMCMatrix[mod] = new((*fMisalArray)[nr])TGeoHMatrix() ;
663 fEMCMatrix[mod]->SetRotation(rotEMC) ;
664 fEMCMatrix[mod]->MultiplyLeft(fPHOSMatrix[mod]) ;
665 fPHOSMatrix[mod]->LocalToMaster(locTII,globTII) ;
666 fEMCMatrix[mod]->SetTranslation(globTII) ;
668 //Now calculate ideal matrixes for strip misalignment.
669 //For the moment we can not store them in ESDHeader
671 Double_t loc[3]={0.,inthermo[1] - strip[1],0.} ;
675 for(Int_t irow = 0; irow < fGeometryEMCA->GetNStripX(); irow ++){
676 loc[0] = (2*irow + 1 - fGeometryEMCA->GetNStripX())* strip[0] ;
677 for(Int_t icol = 0; icol < fGeometryEMCA->GetNStripZ(); icol ++){
678 loc[2] = (2*icol + 1 - fGeometryEMCA->GetNStripZ()) * strip[2] ;
679 fEMCMatrix[mod]->LocalToMaster(loc,glob) ;
680 if (fStripMatrix[mod][istrip] == NULL)
681 fStripMatrix[mod][istrip] = new((*fMisalArray)[nr])TGeoHMatrix(*(fEMCMatrix[mod])) ; //Use same rotation as PHOS module
683 fStripMatrix[mod][istrip]->SetTranslation(glob) ;
688 //Now calculate CPV matrixes
689 const Float_t * emcParams = fGeometryEMCA->GetEMCParams() ;
690 Double_t globCPV[3] ;
691 Double_t locCPV[3]={0.,0.,- emcParams[3]} ;
692 Double_t rot[9]={1.,0.,0.,0.,0.,1.,0.,-1.,0.} ;
694 if (fCPVMatrix[mod] == NULL)
695 fCPVMatrix[mod] = new((*fMisalArray)[nr])TGeoHMatrix() ;
697 fCPVMatrix[mod]->SetRotation(rot) ;
698 fCPVMatrix[mod]->MultiplyLeft(fPHOSMatrix[mod]) ;
699 fCPVMatrix[mod]->ReflectY(kFALSE) ;
700 fPHOSMatrix[mod]->LocalToMaster(locCPV,globCPV) ;
701 fCPVMatrix[mod]->SetTranslation(globCPV) ;