// can be easily implemented
// The title is used to identify the version of CPV used.
//
-//*-- Author: Yves Schutz (SUBATECH)
+// -- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC "KI" & SUBATECH)
// --- ROOT system ---
#include "TVector3.h"
#include "TRotation.h"
-#include "TFolder.h"
-#include "TROOT.h"
+#include "TParticle.h"
+#include <TGeoManager.h>
+#include <TGeoMatrix.h>
// --- Standard library ---
-#include <iostream.h>
-#include <stdlib.h>
-
// --- AliRoot header files ---
-
+#include "AliLog.h"
#include "AliPHOSGeometry.h"
#include "AliPHOSEMCAGeometry.h"
-#include "AliPHOSPpsdRecPoint.h"
-#include "AliConst.h"
+#include "AliPHOSRecPoint.h"
-ClassImp(AliPHOSGeometry) ;
+ClassImp(AliPHOSGeometry)
// these initialisations are needed for a singleton
-AliPHOSGeometry * AliPHOSGeometry::fgGeom = 0 ;
-Bool_t AliPHOSGeometry::fgInit = kFALSE ;
+AliPHOSGeometry * AliPHOSGeometry::fgGeom = 0 ;
+Bool_t AliPHOSGeometry::fgInit = kFALSE ;
+
+//____________________________________________________________________________
+AliPHOSGeometry::AliPHOSGeometry() :
+ fNModules(0),
+ fAngle(0.f),
+ fPHOSAngle(0),
+ fIPtoUpperCPVsurface(0),
+ fCrystalShift(0),
+ fCryCellShift(0),
+ fRotMatrixArray(0),
+ fGeometryEMCA(0),
+ fGeometryCPV(0),
+ fGeometrySUPP(0)
+{
+ // default ctor
+ // must be kept public for root persistency purposes, but should never be called by the outside world
+ fgGeom = 0 ;
+}
+
+//____________________________________________________________________________
+AliPHOSGeometry::AliPHOSGeometry(const AliPHOSGeometry & rhs)
+ : AliGeometry(rhs),
+ fNModules(rhs.fNModules),
+ fAngle(rhs.fAngle),
+ fPHOSAngle(0),
+ fIPtoUpperCPVsurface(rhs.fIPtoUpperCPVsurface),
+ fCrystalShift(rhs.fCrystalShift),
+ fCryCellShift(rhs.fCryCellShift),
+ fRotMatrixArray(0),
+ fGeometryEMCA(0),
+ fGeometryCPV(0),
+ fGeometrySUPP(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),
+ fGeometrySUPP(0)
+{
+ // ctor only for internal usage (singleton)
+ Init() ;
+ fgGeom = this;
+}
//____________________________________________________________________________
AliPHOSGeometry::~AliPHOSGeometry(void)
if (fRotMatrixArray) fRotMatrixArray->Delete() ;
if (fRotMatrixArray) delete fRotMatrixArray ;
- if (fPHOSAngle ) delete fPHOSAngle ;
+ if (fPHOSAngle ) delete[] fPHOSAngle ;
}
//____________________________________________________________________________
-
void AliPHOSGeometry::Init(void)
{
// Initializes the PHOS parameters :
// IHEP is the Protvino CPV (cathode pad chambers)
- // GPS2 is the Subatech Pre-Shower (two micromegas sandwiching a passive lead converter)
- // MIXT 4 PHOS modules withe the IHEP CPV qnd one PHOS module with the Subatche Pre-Shower
-
- if ( ((strcmp( fName, "GPS2" )) == 0) ||
- ((strcmp( fName, "IHEP" )) == 0) ||
- ((strcmp( fName, "MIXT" )) == 0) ) {
- fgInit = kTRUE ;
-
- fNModules = 5;
- fNPPSDModules = 0;
- fAngle = 20;
-
- fGeometryEMCA = new AliPHOSEMCAGeometry();
- if ( ((strcmp( fName, "GPS2" )) == 0) ) {
- fGeometryPPSD = new AliPHOSPPSDGeometry();
- fGeometryCPV = 0;
- fNPPSDModules = fNModules;
- }
- else if ( ((strcmp( fName, "IHEP" )) == 0) ) {
- fGeometryCPV = new AliPHOSCPVGeometry ();
- fGeometryPPSD = 0;
- fNPPSDModules = 0;
- }
- else if ( ((strcmp( fName, "MIXT" )) == 0) ) {
- fGeometryCPV = new AliPHOSCPVGeometry ();
- fGeometryPPSD = new AliPHOSPPSDGeometry();
- fNPPSDModules = 1;
- }
- fGeometrySUPP = new AliPHOSSupportGeometry();
+
+/*
+ TString test(GetName()) ;
+ if (test != "IHEP" && test != "noCPV") {
+ AliFatal(Form("%s is not a known geometry (choose among IHEP)",
+ test.Data() )) ;
+ }
+*/
- fPHOSAngle = new Float_t[fNModules] ;
- Int_t index ;
- for ( index = 0; index < fNModules; index++ )
- fPHOSAngle[index] = 0.0 ; // Module position angles are set in CreateGeometry()
+ fgInit = kTRUE ;
- this->SetPHOSAngles() ;
- fRotMatrixArray = new TObjArray(fNModules) ;
-
- // post the geometry into the appropriate folder
- TFolder * folder = (TFolder*)gROOT->FindObjectAny("YSAlice/WhiteBoard/Geometry/PHOS");
- if ( !folder ) {
- cerr << "ERROR: AliPHOSGeometry::Init -> No WhiteBoard/Geometry/PHOS found !" << endl ;
- abort();
- } else {
- folder->SetOwner() ;
- folder->Add(this) ;
- }
- }
- else {
- fgInit = kFALSE ;
- cout << "PHOS Geometry setup: option not defined " << fName << endl ;
- abort() ;
- }
-}
+ fNModules = 5;
+ fAngle = 20;
+ fGeometryEMCA = new AliPHOSEMCAGeometry();
+
+ fGeometryCPV = new AliPHOSCPVGeometry ();
+
+ fGeometrySUPP = new AliPHOSSupportGeometry();
+
+ fPHOSAngle = new Float_t[fNModules] ;
+
+ Float_t * emcParams = fGeometryEMCA->GetEMCParams() ;
+
+ fPHOSParams[0] = TMath::Max((Double_t)fGeometryCPV->GetCPVBoxSize(0)/2.,
+ (Double_t)(emcParams[0] - (emcParams[1]-emcParams[0])*
+ fGeometryCPV->GetCPVBoxSize(1)/2/emcParams[3]));
+ fPHOSParams[1] = emcParams[1] ;
+ fPHOSParams[2] = TMath::Max((Double_t)emcParams[2], (Double_t)fGeometryCPV->GetCPVBoxSize(2)/2.);
+ 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()
+
+ fRotMatrixArray = new TObjArray(fNModules) ;
-//____________________________________________________________________________
-Bool_t AliPHOSGeometry::IsInEMC(const Int_t id) const {
- Int_t relid[4] ;
- AbsToRelNumbering(id, relid) ;
- if ( relid[1] == 0 )
- return kTRUE ;
- else
- return kFALSE ;
+ // Geometry parameters are calculated
+
+ SetPHOSAngles();
+ Double_t const kRADDEG = 180.0 / TMath::Pi() ;
+ Float_t r = GetIPtoOuterCoverDistance() + fPHOSParams[3] - GetCPVBoxSize(1) ;
+ for (Int_t iModule=0; iModule<fNModules; iModule++) {
+ fModuleCenter[iModule][0] = r * TMath::Sin(fPHOSAngle[iModule] / kRADDEG );
+ fModuleCenter[iModule][1] =-r * TMath::Cos(fPHOSAngle[iModule] / kRADDEG );
+ fModuleCenter[iModule][2] = 0.;
+
+ fModuleAngle[iModule][0][0] = 90;
+ fModuleAngle[iModule][0][1] = fPHOSAngle[iModule];
+ fModuleAngle[iModule][1][0] = 0;
+ fModuleAngle[iModule][1][1] = 0;
+ fModuleAngle[iModule][2][0] = 90;
+ fModuleAngle[iModule][2][1] = 270 + fPHOSAngle[iModule];
}
-//____________________________________________________________________________
-Float_t AliPHOSGeometry::GetCPVBoxSize(Int_t index) const
-{
- // returns the coarse dimension CPV depending on the CPV option set
-
- if (strcmp(fName,"GPS2") ==0 )
- return fGeometryPPSD->GetCPVBoxSize(index);
- else if (strcmp(fName,"IHEP")==0)
- return fGeometryCPV ->GetCPVBoxSize(index);
- else if (strcmp(fName,"MIXT")==0)
- return TMath::Max(fGeometryCPV ->GetCPVBoxSize(index), fGeometryPPSD->GetCPVBoxSize(index));
- else
- return 0;
-}
+}
//____________________________________________________________________________
AliPHOSGeometry * AliPHOSGeometry::GetInstance()
{
// Returns the pointer of the unique instance; singleton specific
- return (AliPHOSGeometry *) fgGeom ;
+ return static_cast<AliPHOSGeometry *>( fgGeom ) ;
}
//____________________________________________________________________________
}
}
else {
- if ( strcmp(fgGeom->GetName(), name) != 0 ) {
- cout << "AliPHOSGeometry <E> : current geometry is " << fgGeom->GetName() << endl
- << " you cannot call " << name << endl ;
- }
+ if ( strcmp(fgGeom->GetName(), name) != 0 )
+ ::Error("GetInstance", "Current geometry is %s. You cannot call %s",
+ fgGeom->GetName(), name) ;
else
rv = (AliPHOSGeometry *) fgGeom ;
}
void AliPHOSGeometry::SetPHOSAngles()
{
// Calculates the position of the PHOS modules in ALICE global coordinate system
+ // in ideal geometry
- Double_t const kRADDEG = 180.0 / kPI ;
- Float_t pphi = 2 * TMath::ATan( GetOuterBoxSize(0) / ( 2.0 * GetIPtoOuterCoverDistance() ) ) ;
+ Double_t const kRADDEG = 180.0 / TMath::Pi() ;
+ Float_t pphi = 2 * TMath::ATan( GetOuterBoxSize(0) / ( 2.0 * GetIPtoUpperCPVsurface() ) ) ;
pphi *= kRADDEG ;
- if (pphi > fAngle) cout << "AliPHOSGeometry: PHOS modules overlap!\n";
+ if (pphi > fAngle){
+ AliError(Form("PHOS modules overlap!\n pphi = %f fAngle = %f",
+ pphi, fAngle));
+
+ }
pphi = fAngle;
for( Int_t i = 1; i <= fNModules ; i++ ) {
}
//____________________________________________________________________________
-Bool_t AliPHOSGeometry::AbsToRelNumbering(const 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
- // = PPSD Module number 1:fNumberOfModulesPhi*fNumberOfModulesZ*2 (2->up and bottom level)
- // relid[2] = Row number inside a PHOS or PPSD module
- // relid[3] = Column number inside a PHOS or PPSD module
+ // = -1 if CPV
+ // relid[2] = Row number inside a PHOS module
+ // 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 / ( GetNPhi() * GetNZ() ) ) ;
+ Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / GetNCristalsInModule() ) ;
- if ( phosmodulenumber > GetNModules() ) { // it is a PPSD or CPV pad
-
- if ( strcmp(fName,"GPS2") == 0 ) {
- id -= GetNPhi() * GetNZ() * GetNModules() ;
- Float_t tempo = 2 * GetNumberOfModulesPhi() * GetNumberOfModulesZ() * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- relid[0] = (Int_t)TMath::Ceil( id / tempo ) ;
- id -= ( relid[0] - 1 ) * tempo ;
- relid[1] = (Int_t)TMath::Ceil( id / ( GetNumberOfPadsPhi() * GetNumberOfPadsZ() ) ) ;
- id -= ( relid[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- relid[2] = (Int_t)TMath::Ceil( id / GetNumberOfPadsPhi() ) ;
- relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfPadsPhi() ) ;
- }
- else if ( strcmp(fName,"IHEP") == 0 ) {
- id -= GetNPhi() * GetNZ() * GetNModules() ;
- Float_t nCPV = GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() ;
- relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ;
- relid[1] = 1 ;
- id -= ( relid[0] - 1 ) * nCPV ;
- relid[2] = (Int_t) TMath::Ceil( id / GetNumberOfCPVPadsZ() ) ;
- relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfCPVPadsZ() ) ;
- }
- else if ( strcmp(fName,"MIXT") == 0 ) {
- id -= GetNPhi() * GetNZ() * GetNModules() ;
- Float_t nPPSD = 2 * GetNumberOfModulesPhi() * GetNumberOfModulesZ() * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- Float_t nCPV = GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() ;
- if (id <= nCPV*GetNCPVModules()) { // this pad belons to CPV
- relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ;
- relid[1] = 1 ;
- id -= ( relid[0] - 1 ) * nCPV ;
- relid[2] = (Int_t) TMath::Ceil( id / GetNumberOfCPVPadsZ() ) ;
- relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfCPVPadsZ() ) ;
- }
- else { // this pad belons to PPSD
- id -= nCPV*GetNCPVModules();
- relid[0] = (Int_t)TMath::Ceil( id / nPPSD );
- id -= ( relid[0] - 1 ) * nPPSD ;
- relid[0] += GetNCPVModules();
- relid[1] = (Int_t)TMath::Ceil( id / ( GetNumberOfPadsPhi() * GetNumberOfPadsZ() ) ) ;
- id -= ( relid[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- relid[2] = (Int_t)TMath::Ceil( id / GetNumberOfPadsPhi() ) ;
- relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfPadsPhi() ) ;
- }
- }
+ if ( phosmodulenumber > GetNModules() ) { // it is a CPV pad
+
+ id -= GetNPhi() * GetNZ() * GetNModules() ;
+ Float_t nCPV = GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() ;
+ relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ;
+ relid[1] = -1 ;
+ id -= ( relid[0] - 1 ) * nCPV ;
+ relid[2] = (Int_t) TMath::Ceil( id / GetNumberOfCPVPadsZ() ) ;
+ relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * GetNumberOfCPVPadsZ() ) ;
}
- else { // its a PW04 crystal
+ else { // it is a PW04 crystal
relid[0] = phosmodulenumber ;
relid[1] = 0 ;
id -= ( phosmodulenumber - 1 ) * GetNPhi() * GetNZ() ;
- relid[2] = (Int_t)TMath::Ceil( id / GetNPhi() ) ;
- relid[3] = (Int_t)( id - ( relid[2] - 1 ) * GetNPhi() ) ;
+ relid[2] = (Int_t)TMath::Ceil( id / GetNZ() ) ;
+ relid[3] = (Int_t)( id - ( relid[2] - 1 ) * GetNZ() ) ;
}
return rv ;
}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::EmcModuleCoverage(const Int_t mod, Double_t & tm, Double_t & tM, Double_t & pm, Double_t & pM, Option_t * opt) const
+//____________________________________________________________________________
+void AliPHOSGeometry::GetGlobal(const AliRecPoint* , TVector3 & ) 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 {
- cout << "<I> AliPHOSGeometry::EmcXtalCoverage : " << opt << " unknown option; result in radian " << endl ;
- conv = 1. ;
- }
-
- Float_t phi = GetPHOSAngle(mod) * (TMath::Pi() / 180.) ;
- Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
-
- Double_t angle = TMath::ATan( GetCrystalSize(0)*GetNPhi() / (2 * y0) ) ;
- phi = phi + 1.5 * TMath::Pi() ; // to follow the convention of the particle generator(PHOS is between 230 and 310 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( GetCrystalSize(2)*GetNZ() / (2 * 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 ;
-
+ AliFatal(Form("Please use GetGlobalPHOS(recPoint,gpos) instead of GetGlobal!"));
}
-//____________________________________________________________________________
-void AliPHOSGeometry::EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt) 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 {
- cout << "<I> AliPHOSGeometry::EmcXtalCoverage : " << opt << " unknown option; result in radian " << endl ;
- conv = 1. ;
- }
-
- Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
- theta = 2 * TMath::ATan( GetCrystalSize(2) / (2 * y0) ) * conv ;
- phi = 2 * TMath::ATan( GetCrystalSize(0) / (2 * y0) ) * conv ;
-}
-
-
//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & 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( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
- GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
-
- }
- else
- { // it is a PPSD pad
- AliPHOSPpsdRecPoint * tmpPpsd = (AliPHOSPpsdRecPoint *) RecPoint ;
- if (tmpPpsd->GetUp() ) // it is an upper module
- {
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() -
- GetLeadToMicro2Gap() - GetLeadConverterThickness() -
- GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0 ) ) ;
- }
- else // it is a lower module
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
- }
-
- Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const kRADDEG = 180.0 / kPI ;
- 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
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
+ }
+ //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 ;
+ }
+ 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]) ;
}
-
//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) 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 coordinates of a RecPoint in the ALICE global coordinate system
-
- AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
- TVector3 localposition ;
- tmpPHOS->GetLocalPosition(gpos) ;
-
+ // calculates the impact coordinates on PHOS of a neutral particle
+ // 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]) ;
- if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
- { gpos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
- GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
+ 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");
}
- else
- { // it is a PPSD pad
- AliPHOSPpsdRecPoint * tmpPpsd = (AliPHOSPpsdRecPoint *) RecPoint ;
- if (tmpPpsd->GetUp() ) // it is an upper module
- {
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() -
- GetLeadToMicro2Gap() - GetLeadConverterThickness() -
- GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0 ) ) ;
- }
- else // it is a lower module
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
- }
-
- Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const kRADDEG = 180.0 / kPI ;
- 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
+ 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 ;
+
}
//____________________________________________________________________________
-void AliPHOSGeometry::ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber, Double_t & z, Double_t & x) const
+Bool_t AliPHOSGeometry::Impact(const TParticle * particle) 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 ( ModuleNumber != 0 ) {
- Float_t phi0 = GetPHOSAngle(ModuleNumber) * (TMath::Pi() / 180.) + 1.5 * TMath::Pi() ;
- Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
- Double_t angle = phi - phi0;
- x = y0 * TMath::Tan(angle) ;
- angle = theta - TMath::Pi() / 2 ;
- z = y0 * TMath::Tan(angle) ;
- }
+ // 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(vtx,particle->Theta(),particle->Phi(),moduleNumber,z,x);
+ if(moduleNumber!=0)
+ in=kTRUE;
+ 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
- // PPSD gas cell:
- // AbsId = from N(total EMCA crystals) + 1
- // to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ +
- // fNModules * 2 * (fNumberOfModulesPhi * fNumberOfModulesZ) * fNumberOfPadsPhi * fNumberOfPadsZ
+ // 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 && strcmp(fName,"GPS2")==0) { // it is a PPSD pad
- AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate EMCA crystals from PPSD pads
- + ( relid[0] - 1 ) * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PPSD modules
- * GetNumberOfPadsPhi() * GetNumberOfPadsZ() * 2
- + ( relid[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() // the pads offset of PPSD modules
- + ( relid[2] - 1 ) * GetNumberOfPadsPhi() // the pads offset of a PPSD row
- + relid[3] ; // the column number
- }
-
- else if ( relid[1] > 0 && strcmp(fName,"MIXT")==0) { // it is a PPSD pad
- AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate EMCA crystals from PPSD pads
- + GetNCPVModules() * GetNumberOfCPVPadsPhi() * GetNumberOfCPVPadsZ() // the pads offset of CPV modules if any
- + ( relid[0] - 1 - GetNCPVModules())
- * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PPSD modules
- * GetNumberOfPadsPhi() * GetNumberOfPadsZ() * 2
- + ( relid[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() // the pads offset of PPSD modules
- + ( relid[2] - 1 ) * GetNumberOfPadsPhi() // the pads offset of a PPSD row
- + relid[3] ; // the column number
- }
-
- else if ( relid[1] == 0 ) { // it is a Phos crystal
- AbsId =
- ( relid[0] - 1 ) * GetNPhi() * GetNZ() // the offset of PHOS modules
- + ( relid[2] - 1 ) * GetNPhi() // the offset of a xtal row
- + relid[3] ; // the column number
+
+ if ( relid[1] == 0 ) { // it is a Phos crystal
+ 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 if ( relid[1] == -1 ) { // it is a CPV pad
- 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
+ else { // it is a CPV pad
+ 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(const Int_t id, TVector3 & pos ) const
+void AliPHOSGeometry::RelPosInAlice(Int_t id, TVector3 & pos ) const
{
// Converts the absolute numbering into the global ALICE coordinate system
- // It works only for the GPS2 geometry
- if (id > 0 && strcmp(fName,"GPS2")==0) {
-
- Int_t relid[4] ;
-
- AbsToRelNumbering(id , relid) ;
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
+ }
- Int_t phosmodule = relid[0] ;
+ Int_t relid[4] ;
- Float_t y0 = 0 ;
+ AbsToRelNumbering(id , relid) ;
- if ( relid[1] == 0 ) { // it is a PbW04 crystal
- y0 = -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ;
+ //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");
}
- if ( relid[1] > 0 ) { // its a PPSD pad
- if ( relid[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() ) { // its an bottom module
- y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ;
- }
- else // its an upper module
- y0 = -( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() - GetLeadToMicro2Gap()
- - GetLeadConverterThickness() - GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0) ;
+ TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
+ if (m) m->LocalToMaster(ps,psC);
+ else{
+ AliFatal("Geo matrixes are not loaded \n") ;
}
-
- Float_t x, z ;
- RelPosInModule(relid, x, z) ;
-
- pos.SetX(x) ;
- pos.SetZ(z) ;
- pos.SetY(- TMath::Sqrt(x*x + z*z + y0*y0) ) ;
-
-
-
- Float_t phi = GetPHOSAngle( phosmodule) ;
- Double_t const kRADDEG = 180.0 / kPI ;
- 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
-
- cout << "before X,Y,Z " << pos.X() << endl << pos.Y() << endl << pos.Z() << endl;
- pos.Transform(rot) ; // rotate the baby
- cout << "X,Y,Z " << pos.X() << endl << pos.Y() << endl << pos.Z() << endl;
+ pos.SetXYZ(psC[0],psC[1],psC[2]) ;
}
- else {
- pos.SetX(0.);
- pos.SetY(0.);
- pos.SetZ(0.);
+ 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
+{
+ // 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] ;
+ 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);
+
+ }
+
+}
+
//____________________________________________________________________________
void AliPHOSGeometry::RelPosInModule(const Int_t * relid, Float_t & x, Float_t & z) const
{
// 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)
-
- Bool_t padOfCPV = (strcmp(fName,"IHEP")==0) ||
- ((strcmp(fName,"MIXT")==0) && relid[0]<=GetNCPVModules()) ;
- Bool_t padOfPPSD = (strcmp(fName,"GPS2")==0) ||
- ((strcmp(fName,"MIXT")==0) && relid[0]> GetNCPVModules()) ;
- Int_t ppsdmodule ;
- Float_t x0,z0;
- Int_t row = relid[2] ; //offset along x axiz
- Int_t column = relid[3] ; //offset along z axiz
-
- Float_t padsizeZ = 0;
- Float_t padsizeX = 0;
- Int_t nOfPadsPhi = 0;
- Int_t nOfPadsZ = 0;
- if ( padOfPPSD ) {
- padsizeZ = GetPPSDModuleSize(2) / GetNumberOfPadsZ();
- padsizeX = GetPPSDModuleSize(0) / GetNumberOfPadsPhi();
- nOfPadsPhi = GetNumberOfPadsPhi();
- nOfPadsZ = GetNumberOfPadsZ();
+
+ if (!gGeoManager){
+ AliFatal("Geo manager not initialized\n");
}
- else if ( padOfCPV ) {
- padsizeZ = GetPadSizeZ();
- padsizeX = GetPadSizePhi();
- nOfPadsPhi = GetNumberOfCPVPadsPhi();
- nOfPadsZ = GetNumberOfCPVPadsZ();
+ //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 ;
}
-
- if ( relid[1] == 0 ) { // its a PbW04 crystal
- x = - ( GetNPhi()/2. - row + 0.5 ) * GetCrystalSize(0) ; // position ox Xtal with respect
- z = ( GetNZ() /2. - column + 0.5 ) * GetCrystalSize(2) ; // of center of PHOS module
- }
- else {
- if ( padOfPPSD ) {
- if ( relid[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() )
- ppsdmodule = relid[1]-GetNumberOfModulesPhi() * GetNumberOfModulesZ();
- else
- ppsdmodule = relid[1] ;
- Int_t modrow = 1+(Int_t)TMath::Ceil( (Float_t)ppsdmodule / GetNumberOfModulesPhi()-1. ) ;
- Int_t modcol = ppsdmodule - ( modrow - 1 ) * GetNumberOfModulesPhi() ;
- x0 = ( GetNumberOfModulesPhi() / 2. - modrow + 0.5 ) * GetPPSDModuleSize(0) ;
- z0 = ( GetNumberOfModulesZ() / 2. - modcol + 0.5 ) * GetPPSDModuleSize(2) ;
- } else {
- x0 = 0;
- z0 = 0;
+ 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");
}
- x = - ( nOfPadsPhi/2. - row - 0.5 ) * padsizeX + x0 ; // position of pad with respect
- z = ( nOfPadsZ /2. - column - 0.5 ) * padsizeZ - z0 ; // of center of PHOS module
+ 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 ;
+
}
+
+}
+
+//____________________________________________________________________________
+
+void AliPHOSGeometry::GetModuleCenter(TVector3& center,
+ const char *det,
+ 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();
+ else
+ AliFatal(Form("Wrong detector name %s",det));
+
+ Float_t angle = GetPHOSAngle(module); // (40,20,0,-20,-40) degrees
+ angle *= TMath::Pi()/180;
+ angle += 3*TMath::Pi()/2.;
+ center.SetXYZ(rDet*TMath::Cos(angle), rDet*TMath::Sin(angle), 0.);
+}
+
+//____________________________________________________________________________
+
+void AliPHOSGeometry::Global2Local(TVector3& localPosition,
+ const TVector3& globalPosition,
+ 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