#include "TVector3.h"
#include "TRotation.h"
#include "TParticle.h"
+#include <TGeoManager.h>
+#include <TGeoMatrix.h>
// --- Standard library ---
fAngle(0.f),
fPHOSAngle(0),
fIPtoUpperCPVsurface(0),
+ fCrystalShift(0),
+ fCryCellShift(0),
fRotMatrixArray(0),
fGeometryEMCA(0),
fGeometryCPV(0),
fAngle(rhs.fAngle),
fPHOSAngle(0),
fIPtoUpperCPVsurface(rhs.fIPtoUpperCPVsurface),
+ fCrystalShift(rhs.fCrystalShift),
+ fCryCellShift(rhs.fCryCellShift),
fRotMatrixArray(0),
fGeometryEMCA(0),
fGeometryCPV(0),
Fatal("cpy ctor", "not implemented") ;
}
+//____________________________________________________________________________
AliPHOSGeometry::AliPHOSGeometry(const Text_t* name, const Text_t* title)
: AliGeometry(name, title),
fNModules(0),
fAngle(0.f),
fPHOSAngle(0),
fIPtoUpperCPVsurface(0),
+ fCrystalShift(0),
+ fCryCellShift(0),
fRotMatrixArray(0),
fGeometryEMCA(0),
fGeometryCPV(0),
{
// ctor only for internal usage (singleton)
Init() ;
+ fgGeom = this;
}
-
//____________________________________________________________________________
AliPHOSGeometry::~AliPHOSGeometry(void)
{
if (fRotMatrixArray) delete fRotMatrixArray ;
if (fPHOSAngle ) delete[] fPHOSAngle ;
}
-//____________________________________________________________________________
+//____________________________________________________________________________
void AliPHOSGeometry::Init(void)
{
// Initializes the PHOS parameters :
// IHEP is the Protvino CPV (cathode pad chambers)
+/*
TString test(GetName()) ;
- if (test != "IHEP" ) {
+ if (test != "IHEP" && test != "noCPV") {
AliFatal(Form("%s is not a known geometry (choose among IHEP)",
test.Data() )) ;
}
+*/
fgInit = kTRUE ;
fPHOSParams[3] = emcParams[3] + fGeometryCPV->GetCPVBoxSize(1)/2. ;
fIPtoUpperCPVsurface = fGeometryEMCA->GetIPtoOuterCoverDistance() - fGeometryCPV->GetCPVBoxSize(1) ;
-
+
+ //calculate offset to crystal surface
+ Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ;
+ Float_t * strip = fGeometryEMCA->GetStripHalfSize() ;
+ Float_t* splate = fGeometryEMCA->GetSupportPlateHalfSize();
+ Float_t * crystal = fGeometryEMCA->GetCrystalHalfSize() ;
+ Float_t * pin = fGeometryEMCA->GetAPDHalfSize() ;
+ Float_t * preamp = fGeometryEMCA->GetPreampHalfSize() ;
+ fCrystalShift=-inthermo[1]+strip[1]+splate[1]+crystal[1]-fGeometryEMCA->GetAirGapLed()/2.+pin[1]+preamp[1] ;
+ fCryCellShift=crystal[1]-(fGeometryEMCA->GetAirGapLed()-2*pin[1]-2*preamp[1])/2;
+
Int_t index ;
for ( index = 0; index < fNModules; index++ )
fPHOSAngle[index] = 0.0 ; // Module position angles are set in CreateGeometry()
void AliPHOSGeometry::SetPHOSAngles()
{
// Calculates the position of the PHOS modules in ALICE global coordinate system
+ // in ideal geometry
Double_t const kRADDEG = 180.0 / TMath::Pi() ;
Float_t pphi = 2 * TMath::ATan( GetOuterBoxSize(0) / ( 2.0 * GetIPtoUpperCPVsurface() ) ) ;
}
//____________________________________________________________________________
-Bool_t AliPHOSGeometry::AbsToRelNumbering(Int_t AbsId, Int_t * relid) const
+Bool_t AliPHOSGeometry::AbsToRelNumbering(Int_t absId, Int_t * relid) const
{
- // Converts the absolute numbering into the following array/
+ // Converts the absolute numbering into the following array
// relid[0] = PHOS Module number 1:fNModules
// relid[1] = 0 if PbW04
// = -1 if CPV
// relid[3] = Column number inside a PHOS module
Bool_t rv = kTRUE ;
- Float_t id = AbsId ;
+ Float_t id = absId ;
Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / GetNCristalsInModule() ) ;
}
return rv ;
}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::EmcModuleCoverage(Int_t mod, Double_t & tm, Double_t & tM, Double_t & pm, Double_t & pM, Option_t * opt) const
-{
- // calculates the angular coverage in theta and phi of one EMC (=PHOS) module
-
- Double_t conv ;
- if ( opt == Radian() )
- conv = 1. ;
- else if ( opt == Degre() )
- conv = 180. / TMath::Pi() ;
- else {
- AliWarning(Form("%s unknown option; result in radian", opt)) ;
- conv = 1. ;
- }
-
- Float_t phi = GetPHOSAngle(mod) * (TMath::Pi() / 180.) ;
- Float_t y0 = GetIPtoCrystalSurface() ;
- Float_t * strip = fGeometryEMCA->GetStripHalfSize() ;
- Float_t x0 = fGeometryEMCA->GetNStripX()*strip[0] ;
- Float_t z0 = fGeometryEMCA->GetNStripZ()*strip[2] ;
- Double_t angle = TMath::ATan( x0 / y0 ) ;
- phi = phi + 1.5 * TMath::Pi() ; // to follow the convention of the particle generator(PHOS is between 220 and 320 deg.)
- Double_t max = phi - angle ;
- Double_t min = phi + angle ;
- pM = TMath::Max(max, min) * conv ;
- pm = TMath::Min(max, min) * conv ;
-
- angle = TMath::ATan( z0 / y0 ) ;
- max = TMath::Pi() / 2. + angle ; // to follow the convention of the particle generator(PHOS is at 90 deg.)
- min = TMath::Pi() / 2. - angle ;
- tM = TMath::Max(max, min) * conv ;
- tm = TMath::Min(max, min) * conv ;
-
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt) const
+//____________________________________________________________________________
+void AliPHOSGeometry::GetGlobal(const AliRecPoint* , TVector3 & ) const
{
- // calculates the angular coverage in theta and phi of a single crystal in a EMC(=PHOS) module
-
- Double_t conv ;
- if ( opt == Radian() )
- conv = 1. ;
- else if ( opt == Degre() )
- conv = 180. / TMath::Pi() ;
- else {
- AliWarning(Form("%s unknown option; result in radian", opt)) ;
- conv = 1. ;
- }
-
- Float_t y0 = GetIPtoCrystalSurface() ;
- theta = 2 * TMath::ATan( GetCrystalSize(2) / (2 * y0) ) * conv ;
- phi = 2 * TMath::ATan( GetCrystalSize(0) / (2 * y0) ) * conv ;
+ AliFatal(Form("Please use GetGlobalPHOS(recPoint,gpos) instead of GetGlobal!"));
}
-
//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrixF & /*gmat*/) const
+void AliPHOSGeometry::GetGlobalPHOS(const AliPHOSRecPoint* recPoint, TVector3 & gpos) const
{
// Calculates the coordinates of a RecPoint and the error matrix in the ALICE global coordinate system
- AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
+ const AliPHOSRecPoint * tmpPHOS = recPoint ;
TVector3 localposition ;
tmpPHOS->GetLocalPosition(gpos) ;
-
- if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
- { gpos.SetY( - GetIPtoCrystalSurface()) ;
-
- }
- else
- { // it is a CPV
- gpos.SetY(- GetIPtoUpperCPVsurface() ) ;
- }
-
- Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const kRADDEG = 180.0 / TMath::Pi() ;
- Float_t rphi = phi / kRADDEG ;
-
- TRotation rot ;
- rot.RotateZ(-rphi) ; // a rotation around Z by angle
-
- TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
- gpos.Transform(rot) ; // rotate the baby
-
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) const
-{
- // Calculates the coordinates of a RecPoint in the ALICE global coordinate system
-
- AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
- TVector3 localposition ;
- tmpPHOS->GetLocalPosition(gpos) ;
-
-
- if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
- { gpos.SetY( - GetIPtoCrystalSurface() ) ;
- }
- else
- { // it is a CPV
- gpos.SetY(- GetIPtoUpperCPVsurface() ) ;
- }
-
- Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const kRADDEG = 180.0 / TMath::Pi() ;
- Float_t rphi = phi / kRADDEG ;
-
- TRotation rot ;
- rot.RotateZ(-rphi) ; // a rotation around Z by angle
-
- TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
- gpos.Transform(rot) ; // rotate the baby
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::ImpactOnEmc(Double_t theta, Double_t phi, Int_t & moduleNumber, Double_t & z, Double_t & x) const
-{
- // calculates the impact coordinates on PHOS of a neutral particle
- // emitted in the direction theta and phi in the ALICE global coordinate system
-
- // searches for the PHOS EMC module
-
- moduleNumber = 0 ;
- Double_t tm, tM, pm, pM ;
- Int_t index = 1 ;
- while ( moduleNumber == 0 && index <= GetNModules() ) {
- EmcModuleCoverage(index, tm, tM, pm, pM) ;
- if ( (theta >= tm && theta <= tM) && (phi >= pm && phi <= pM ) )
- moduleNumber = index ;
- index++ ;
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
}
- if ( moduleNumber != 0 ) {
- Float_t phi0 = GetPHOSAngle(moduleNumber) * (TMath::Pi() / 180.) + 1.5 * TMath::Pi() ;
- Float_t y0 = GetIPtoCrystalSurface() ;
- Double_t angle = phi - phi0;
- x = y0 * TMath::Tan(angle) ;
- angle = theta - TMath::Pi() / 2 ;
- z = y0 * TMath::Tan(angle) ;
+ //construct module name
+ char path[100] ;
+ Double_t dy ;
+ if(tmpPHOS->IsEmc()){
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",tmpPHOS->GetPHOSMod()) ;
+// sprintf(path,"/ALIC_1/PHOS_%d",tmpPHOS->GetPHOSMod()) ;
+ dy=fCrystalShift ;
}
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::ImpactOnEmc(const TVector3& vec, Int_t & moduleNumber, Double_t & z, Double_t & x) const
-{
- // calculates the impact coordinates on PHOS of a neutral particle
- // emitted in the direction theta and phi in the ALICE global coordinate system
- // searches for the PHOS EMC module
-
- Double_t theta = vec.Theta() ;
- Double_t phi = vec.Phi() ;
+ else{
+ sprintf(path,"/ALIC_1/PHOS_%d/PCPV_1",tmpPHOS->GetPHOSMod()) ;
+ dy= GetCPVBoxSize(1)/2. ; //center of CPV module
+ }
+ Double_t pos[3]={gpos.X(),gpos.Y()-dy,gpos.Z()} ;
+ if(tmpPHOS->IsEmc())
+ pos[2]=-pos[2] ; //Opposite z directions in EMC matrix and local frame!!!
+ Double_t posC[3];
+ //now apply possible shifts and rotations
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
+ if (m){
+ m->LocalToMaster(pos,posC);
+ }
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ gpos.SetXYZ(posC[0],posC[1],posC[2]) ;
- ImpactOnEmc(theta, phi, moduleNumber, z, x) ;
}
-
//____________________________________________________________________________
-void AliPHOSGeometry::ImpactOnEmc(const TParticle& p, Int_t & moduleNumber, Double_t & z, Double_t & x) const
+void AliPHOSGeometry::ImpactOnEmc(Double_t * vtx, Double_t theta, Double_t phi,
+ Int_t & moduleNumber, Double_t & z, Double_t & x) const
{
// calculates the impact coordinates on PHOS of a neutral particle
- // emitted in the direction theta and phi in the ALICE global coordinate system
+ // emitted in the vertex vtx[3] with direction theta and phi in the ALICE global coordinate system
+ TVector3 p(TMath::Sin(theta)*TMath::Cos(phi),TMath::Sin(theta)*TMath::Sin(phi),TMath::Cos(theta)) ;
+ TVector3 v(vtx[0],vtx[1],vtx[2]) ;
- // searches for the PHOS EMC module
- Double_t theta = p.Theta() ;
- Double_t phi = p.Phi() ;
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
+ }
+
+ for(Int_t imod=1; imod<=GetNModules() ; imod++){
+ //create vector from (0,0,0) to center of crystal surface of imod module
+ Double_t tmp[3]={0.,-fCrystalShift,0.} ;
+
+ char path[100] ;
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",imod) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
+ Double_t posG[3]={0.,0.,0.} ;
+ if (m) m->LocalToMaster(tmp,posG);
+ TVector3 n(posG[0],posG[1],posG[2]) ;
+ Double_t direction=n.Dot(p) ;
+ if(direction<=0.)
+ continue ; //momentum directed FROM module
+ Double_t fr = (n.Mag2()-n.Dot(v))/direction ;
+ //Calculate direction in module plain
+ n-=v+fr*p ;
+ n*=-1. ;
+ Float_t * sz = fGeometryEMCA->GetInnerThermoHalfSize() ; //Wery close to the zise of the Xtl set
+ if(TMath::Abs(TMath::Abs(n.Z())<sz[2]) && n.Pt()<sz[0]){
+ moduleNumber = imod ;
+ z=n.Z() ;
+ x=TMath::Sign(n.Pt(),n.X()) ;
+ //no need to return to local system since we calcilated distance from module center
+ //and tilts can not be significant.
+ return ;
+ }
+ }
+ //Not in acceptance
+ x=0; z=0 ;
+ moduleNumber=0 ;
- ImpactOnEmc(theta, phi, moduleNumber, z, x) ;
}
//____________________________________________________________________________
// Tells if a particle enters PHOS
Bool_t in=kFALSE;
Int_t moduleNumber=0;
+ Double_t vtx[3]={particle->Vx(),particle->Vy(),particle->Vz()} ;
Double_t z,x;
- ImpactOnEmc(particle->Theta(),particle->Phi(),moduleNumber,z,x);
- if(moduleNumber)
+ ImpactOnEmc(vtx,particle->Theta(),particle->Phi(),moduleNumber,z,x);
+ if(moduleNumber!=0)
in=kTRUE;
- else
- in=kFALSE;
return in;
}
//____________________________________________________________________________
-Bool_t AliPHOSGeometry::RelToAbsNumbering(const Int_t * relid, Int_t & AbsId) const
+Bool_t AliPHOSGeometry::RelToAbsNumbering(const Int_t * relid, Int_t & absId) const
{
// Converts the relative numbering into the absolute numbering
// EMCA crystals:
- // AbsId = from 1 to fNModules * fNPhi * fNZ
+ // absId = from 1 to fNModules * fNPhi * fNZ
// CPV pad:
- // AbsId = from N(total PHOS crystals) + 1
+ // absId = from N(total PHOS crystals) + 1
// to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ
Bool_t rv = kTRUE ;
if ( relid[1] == 0 ) { // it is a Phos crystal
- AbsId =
+ absId =
( relid[0] - 1 ) * GetNPhi() * GetNZ() // the offset of PHOS modules
+ ( relid[2] - 1 ) * GetNZ() // the offset along phi
+ relid[3] ; // the offset along z
}
else { // it is a CPV pad
- AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate EMCA crystals from CPV pads
+ absId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate EMCA crystals from CPV pads
+ ( relid[0] - 1 ) * GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() // the pads offset of PHOS modules
+ ( relid[2] - 1 ) * GetNumberOfCPVPadsZ() // the pads offset of a CPV row
+ relid[3] ; // the column number
}
//____________________________________________________________________________
-
void AliPHOSGeometry::RelPosInAlice(Int_t id, TVector3 & pos ) const
{
// Converts the absolute numbering into the global ALICE coordinate system
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
+ }
- Int_t relid[4] ;
-
- AbsToRelNumbering(id , relid) ;
-
- Int_t phosmodule = relid[0] ;
-
- Float_t y0 = 0 ;
-
- if ( relid[1] == 0 ) // it is a PbW04 crystal
- y0 = - GetIPtoCrystalSurface() ;
- else
- y0 = - GetIPtoUpperCPVsurface() ;
-
- Float_t x, z ;
- RelPosInModule(relid, x, z) ;
-
- pos.SetX(x) ;
- pos.SetZ(z) ;
- pos.SetY(y0) ;
-
- Float_t phi = GetPHOSAngle( phosmodule) ;
- Double_t const kRADDEG = 180.0 / TMath::Pi() ;
- Float_t rphi = phi / kRADDEG ;
-
- TRotation rot ;
- rot.RotateZ(-rphi) ; // a rotation around Z by angle
+ Int_t relid[4] ;
- TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
+ AbsToRelNumbering(id , relid) ;
- pos.Transform(rot) ; // rotate the baby
+ //construct module name
+ char path[100] ;
+ if(relid[1]==0){ //this is EMC
+
+ Double_t ps[3]= {0.0,-fCryCellShift,0.}; //Position incide the crystal
+ Double_t psC[3]={0.0,0.0,0.}; //Global position
+
+ //Shift and possibly apply misalignment corrections
+ Int_t nCellsXInStrip=fGeometryEMCA->GetNCellsXInStrip() ;
+ Int_t nCellsZInStrip=fGeometryEMCA->GetNCellsZInStrip() ;
+ Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/nCellsXInStrip))*fGeometryEMCA->GetNStripZ()-
+ (Int_t) TMath::Ceil((Double_t)relid[3]/nCellsZInStrip) ;
+ Int_t cellraw= relid[3]%nCellsZInStrip ;
+ if(cellraw==0)cellraw=nCellsZInStrip ;
+ Int_t cell= ((relid[2]-1)%nCellsXInStrip)*nCellsZInStrip + cellraw ;
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1/PSTR_%d/PCEL_%d",
+ relid[0],strip,cell) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
+ if (m) m->LocalToMaster(ps,psC);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ pos.SetXYZ(psC[0],psC[1],psC[2]) ;
+ }
+ else{
+ //first calculate position with respect to CPV plain
+ Int_t row = relid[2] ; //offset along x axis
+ Int_t column = relid[3] ; //offset along z axis
+ Double_t ps[3]= {0.0,GetCPVBoxSize(1)/2.,0.}; //Position on top of CPV
+ Double_t psC[3]={0.0,0.0,0.}; //Global position
+ pos[0] = - ( GetNumberOfCPVPadsPhi()/2. - row - 0.5 ) * GetPadSizePhi() ; // position of pad with respect
+ pos[2] = - ( GetNumberOfCPVPadsZ() /2. - column - 0.5 ) * GetPadSizeZ() ; // of center of PHOS module
+
+ //now apply possible shifts and rotations
+ sprintf(path,"/ALIC_1/PHOS_%d/PCPV_1",relid[0]) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
+ if (m) m->LocalToMaster(ps,psC);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ pos.SetXYZ(psC[0],psC[1],-psC[2]) ;
+ }
}
//____________________________________________________________________________
-void AliPHOSGeometry::RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & AbsId) const
+void AliPHOSGeometry::RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & absId) const
{
// converts local PHOS-module (x, z) coordinates to absId
+
+ //find Global position
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
+ }
+ Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!!
+ Double_t posG[3] ;
+ char path[100] ;
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",module) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix();
+ if (mPHOS){
+ mPHOS->LocalToMaster(posL,posG);
+ }
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+
Int_t relid[4] ;
- relid[0] = module ;
- relid[1] = 0 ;
- relid[2] = static_cast<Int_t>(TMath::Ceil( x/ GetCellStep() + GetNPhi() / 2.) );
- relid[3] = static_cast<Int_t>(TMath::Ceil(-z/ GetCellStep() + GetNZ() / 2.) ) ;
-
- RelToAbsNumbering(relid,AbsId) ;
+ gGeoManager->FindNode(posG[0],posG[1],posG[2]) ;
+ //Check that path contains PSTR and extract strip number
+ TString cpath(gGeoManager->GetPath()) ;
+ Int_t indx = cpath.Index("PCEL") ;
+ if(indx==-1){ //for the few events when particle hits between srips use ideal geometry
+ relid[0] = module ;
+ relid[1] = 0 ;
+ relid[2] = static_cast<Int_t>(TMath::Ceil( x/ GetCellStep() + GetNPhi() / 2.) );
+ relid[3] = static_cast<Int_t>(TMath::Ceil(-z/ GetCellStep() + GetNZ() / 2.) ) ;
+ if(relid[2]<1)relid[2]=1 ;
+ if(relid[3]<1)relid[3]=1 ;
+ if(relid[2]>GetNPhi())relid[2]=GetNPhi() ;
+ if(relid[3]>GetNZ())relid[3]=GetNZ() ;
+ RelToAbsNumbering(relid,absId) ;
+ }
+ else{
+ Int_t indx2 = cpath.Index("/",indx) ;
+ if(indx2==-1)
+ indx2=cpath.Length() ;
+ TString cell=cpath(indx+5,indx2-indx-5) ;
+ Int_t icell=cell.Atoi() ;
+ indx = cpath.Index("PSTR") ;
+ indx2 = cpath.Index("/",indx) ;
+ TString strip=cpath(indx+5,indx2-indx-5) ;
+ Int_t iStrip = strip.Atoi() ;
+
+ Int_t row = fGeometryEMCA->GetNStripZ() - (iStrip - 1) % (fGeometryEMCA->GetNStripZ()) ;
+ Int_t col = (Int_t) TMath::Ceil((Double_t) iStrip/(fGeometryEMCA->GetNStripZ())) -1 ;
+
+ // Absid for 8x2-strips. Looks nice :)
+ absId = (module-1)*GetNCristalsInModule() +
+ row * 2 + (col*fGeometryEMCA->GetNCellsXInStrip() + (icell - 1) / 2)*GetNZ() - (icell & 1 ? 1 : 0);
+
+ }
+
}
//____________________________________________________________________________
// Converts the relative numbering into the local PHOS-module (x, z) coordinates
// Note: sign of z differs from that in the previous version (Yu.Kharlov, 12 Oct 2000)
- Int_t row = relid[2] ; //offset along x axis
- Int_t column = relid[3] ; //offset along z axis
-
- if ( relid[1] == 0 ) { // its a PbW04 crystal
- x = - ( GetNPhi()/2. - row + 0.5 ) * GetCellStep() ; // position of Xtal with respect
- z = - ( GetNZ() /2. - column + 0.5 ) * GetCellStep() ; // of center of PHOS module
- }
- else {
- x = - ( GetNumberOfCPVPadsPhi()/2. - row - 0.5 ) * GetPadSizePhi() ; // position of pad with respect
- z = - ( GetNumberOfCPVPadsZ() /2. - column - 0.5 ) * GetPadSizeZ() ; // of center of PHOS module
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
+ }
+ //construct module name
+ char path[100] ;
+ if(relid[1]==0){ //this is PHOS
+
+// Calculations using ideal geometry (obsolete)
+// x = - ( GetNPhi()/2. - relid[2] + 0.5 ) * GetCellStep() ; // position of Xtal with respect
+// z = - ( GetNZ() /2. - relid[3] + 0.5 ) * GetCellStep() ; // of center of PHOS module
+
+ Double_t pos[3]= {0.0,-fCryCellShift,0.}; //Position incide the crystal
+ Double_t posC[3]={0.0,0.0,0.}; //Global position
+
+ //Shift and possibly apply misalignment corrections
+ Int_t nCellsXInStrip=fGeometryEMCA->GetNCellsXInStrip() ;
+ Int_t nCellsZInStrip=fGeometryEMCA->GetNCellsZInStrip() ;
+// Int_t strip=1+(relid[3]-1)/fGeometryEMCA->GetNCellsZInStrip()+((relid[2]-1)/nCellsInStrip)*fGeometryEMCA->GetNStripZ() ;
+ Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/nCellsXInStrip))*fGeometryEMCA->GetNStripZ()-
+ (Int_t) TMath::Ceil((Double_t)relid[3]/nCellsZInStrip) ;
+ Int_t cellraw= relid[3]%nCellsZInStrip ;
+ if(cellraw==0)cellraw=nCellsZInStrip ;
+ Int_t cell= ((relid[2]-1)%nCellsXInStrip)*nCellsZInStrip + cellraw ;
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1/PSTR_%d/PCEL_%d",
+ relid[0],strip,cell) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
+ if (m) m->LocalToMaster(pos,posC);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ // printf("Local: x=%f, y=%f, z=%f \n",pos[0],pos[1],pos[2]) ;
+ // printf(" gl: x=%f, y=%f, z=%f \n",posC[0],posC[1],posC[2]) ;
+ //Return to PHOS local system
+ Double_t posL[3]={posC[0],posC[1],posC[2]};
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",relid[0]) ;
+ // sprintf(path,"/ALIC_1/PHOS_%d",relid[0]) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix();
+ if (mPHOS) mPHOS->MasterToLocal(posC,posL);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+//printf("RelPosInMod: posL=[%f,%f,%f]\n",posL[0],posL[1],posL[2]) ;
+//printf("old: x=%f, z=%f \n",x,z);
+ x=posL[0] ;
+ z=-posL[2];
+ return ;
+ }
+ else{//CPV
+ //first calculate position with respect to CPV plain
+ Int_t row = relid[2] ; //offset along x axis
+ Int_t column = relid[3] ; //offset along z axis
+ Double_t pos[3]= {0.0,0.0,0.}; //Position incide the CPV printed circuit
+ Double_t posC[3]={0.0,0.0,0.}; //Global position
+ // x = - ( GetNumberOfCPVPadsPhi()/2. - row - 0.5 ) * GetPadSizePhi() ; // position of pad with respect
+ // z = - ( GetNumberOfCPVPadsZ() /2. - column - 0.5 ) * GetPadSizeZ() ; // of center of PHOS module
+ pos[0] = - ( GetNumberOfCPVPadsPhi()/2. - row - 0.5 ) * GetPadSizePhi() ; // position of pad with respect
+ pos[2] = - ( GetNumberOfCPVPadsZ() /2. - column - 0.5 ) * GetPadSizeZ() ; // of center of PHOS module
+
+ //now apply possible shifts and rotations
+ sprintf(path,"/ALIC_1/PHOS_%d/PCPV_1",relid[0]) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
+ if (m) m->LocalToMaster(pos,posC);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ //Return to PHOS local system
+ Double_t posL[3]={0.,0.,0.,} ;
+ sprintf(path,"/ALIC_1/PHOS_%d",relid[0]) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix();
+ if (mPHOS) mPHOS->MasterToLocal(posC,posL);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ x=posL[0] ;
+ z=posL[1];
+ return ;
+
}
+
}
//____________________________________________________________________________
Int_t module) const
{
// Returns a position of the center of the CPV or EMC module
+ // in ideal (not misaligned) geometry
Float_t rDet = 0.;
if (strcmp(det,"CPV") == 0) rDet = GetIPtoCPVDistance ();
else if (strcmp(det,"EMC") == 0) rDet = GetIPtoCrystalSurface();
Int_t module) const
{
// Transforms a global position of the rec.point to the local coordinate system
+ //Return to PHOS local system
+ Double_t posG[3]={globalPosition.X(),globalPosition.Y(),globalPosition.Z()} ;
+ Double_t posL[3]={0.,0.,0.} ;
+ char path[100] ;
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",module) ;
+// sprintf(path,"/ALIC_1/PHOS_%d",module) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix();
+ if (mPHOS) mPHOS->MasterToLocal(posG,posL);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ localPosition.SetXYZ(posL[0],posL[1]+fCrystalShift,-posL[2]) ;
+
+/*
Float_t angle = GetPHOSAngle(module); // (40,20,0,-20,-40) degrees
angle *= TMath::Pi()/180;
angle += 3*TMath::Pi()/2.;
localPosition = globalPosition;
localPosition.RotateZ(-angle);
+*/
+}
+//____________________________________________________________________________
+void AliPHOSGeometry::Local2Global(Int_t mod, Float_t x, Float_t z,
+ TVector3& globalPosition) const
+{
+ char path[100] ;
+ sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",mod) ;
+// sprintf(path,"/ALIC_1/PHOS_%d",mod) ;
+ if (!gGeoManager->cd(path)){
+ AliFatal("Geo manager can not find path \n");
+ }
+ Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!!
+ Double_t posG[3] ;
+ TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix();
+ if (mPHOS){
+ mPHOS->LocalToMaster(posL,posG);
+ }
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
+ }
+ globalPosition.SetXYZ(posG[0],posG[1],posG[2]) ;
+}
+//____________________________________________________________________________
+void AliPHOSGeometry::GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x,Float_t z, TVector3 &vInc) const {
+ //Calculates vector pointing from vertex to current poisition in module local frame
+ //Note that PHOS local system and ALICE global have opposite z directions
+
+ Global2Local(vInc,vtx,module) ;
+ vInc.SetXYZ(vInc.X()+x,vInc.Y(),vInc.Z()+z) ;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff