// 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"
// --- Standard library ---
-#include <iostream.h>
-
// --- AliRoot header files ---
#include "AliPHOSGeometry.h"
#include "AliPHOSEMCAGeometry.h"
-#include "AliPHOSPpsdRecPoint.h"
-#include "AliConst.h"
+#include "AliPHOSRecPoint.h"
ClassImp(AliPHOSGeometry) ;
AliPHOSGeometry * AliPHOSGeometry::fgGeom = 0 ;
Bool_t AliPHOSGeometry::fgInit = kFALSE ;
+//____________________________________________________________________________
+AliPHOSGeometry::AliPHOSGeometry() {
+ // default ctor
+ // must be kept public for root persistency purposes, but should never be called by the outside world
+ fPHOSAngle = 0 ;
+ fGeometryEMCA = 0 ;
+ fGeometrySUPP = 0 ;
+ fGeometryCPV = 0 ;
+ fgGeom = 0 ;
+ fRotMatrixArray = 0 ;
+}
+
//____________________________________________________________________________
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();
-
- 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()
-
- 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 ;
+
+ TString test(GetName()) ;
+ if (test != "IHEP" ) {
+ Fatal("Init", "%s is not a known geometry (choose among IHEP)", test.Data() ) ;
}
-}
-//____________________________________________________________________________
-Float_t AliPHOSGeometry::GetCPVBoxSize(Int_t index) const
-{
- // returns the coarse dimension CPV depending on the CPV option set
+ fgInit = kTRUE ;
- 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;
-}
+ 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) ;
+
+ Int_t index ;
+ for ( index = 0; index < fNModules; index++ )
+ fPHOSAngle[index] = 0.0 ; // Module position angles are set in CreateGeometry()
+
+ this->SetPHOSAngles() ;
+ fRotMatrixArray = new TObjArray(fNModules) ;
+
+}
//____________________________________________________________________________
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 ;
}
{
// Calculates the position of the PHOS modules in ALICE global coordinate system
- 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){
+ Error("SetPHOSAngles", "PHOS modules overlap!\n pphi = %f fAngle = %f", pphi, fAngle);
+
+ }
pphi = fAngle;
for( Int_t i = 1; i <= fNModules ; i++ ) {
// 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 ;
- 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 ;
}
else if ( opt == Degre() )
conv = 180. / TMath::Pi() ;
else {
- cout << "<I> AliPHOSGeometry::EmcXtalCoverage : " << opt << " unknown option; result in radian " << endl ;
+ Warning("EmcModuleCoverage", "%s unknown option; result in radian", opt) ;
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.)
+ 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( GetCrystalSize(2)*GetNZ() / (2 * y0) ) ;
+ 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 ;
else if ( opt == Degre() )
conv = 180. / TMath::Pi() ;
else {
- cout << "<I> AliPHOSGeometry::EmcXtalCoverage : " << opt << " unknown option; result in radian " << endl ;
+ Warning("EmcXtalCoverage", "%s unknown option; result in radian", opt) ;
conv = 1. ;
}
- Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
+ Float_t y0 = GetIPtoCrystalSurface() ;
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::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & /*gmat*/) const
{
// Calculates the coordinates of a RecPoint and the error matrix in the ALICE global coordinate system
if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
- { gpos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
- GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
+ { gpos.SetY( - GetIPtoCrystalSurface()) ;
}
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) ) ;
+ { // it is a CPV
+ gpos.SetY(- GetIPtoUpperCPVsurface() ) ;
}
Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const kRADDEG = 180.0 / kPI ;
+ Double_t const kRADDEG = 180.0 / TMath::Pi() ;
Float_t rphi = phi / kRADDEG ;
TRotation rot ;
if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
- { gpos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
- GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
+ { gpos.SetY( - GetIPtoCrystalSurface() ) ;
}
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) ) ;
+ { // it is a CPV
+ gpos.SetY(- GetIPtoUpperCPVsurface() ) ;
}
Float_t phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const kRADDEG = 180.0 / kPI ;
+ Double_t const kRADDEG = 180.0 / TMath::Pi() ;
Float_t rphi = phi / kRADDEG ;
TRotation rot ;
}
if ( ModuleNumber != 0 ) {
Float_t phi0 = GetPHOSAngle(ModuleNumber) * (TMath::Pi() / 180.) + 1.5 * TMath::Pi() ;
- Float_t y0 = GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness() ;
+ Float_t y0 = GetIPtoCrystalSurface() ;
Double_t angle = phi - phi0;
x = y0 * TMath::Tan(angle) ;
angle = theta - TMath::Pi() / 2 ;
}
}
+//____________________________________________________________________________
+Bool_t AliPHOSGeometry::Impact(const TParticle * particle) const
+{
+ // Tells if a particle enters PHOS
+ Bool_t in=kFALSE;
+ Int_t moduleNumber=0;
+ Double_t z,x;
+ ImpactOnEmc(particle->Theta(),particle->Phi(),moduleNumber,z,x);
+ if(moduleNumber)
+ in=kTRUE;
+ else
+ in=kFALSE;
+ return in;
+}
+
//____________________________________________________________________________
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
// CPV pad:
// 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
+
+ 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
+ ( 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
{
// 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] ;
Float_t y0 = 0 ;
- if ( relid[1] == 0 ) { // it is a PbW04 crystal
- y0 = -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ;
- }
- 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) ;
- }
-
+ 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( TMath::Sqrt(x*x + z*z + y0*y0) ) ;
-
-
+ pos.SetY(y0) ;
Float_t phi = GetPHOSAngle( phosmodule) ;
- Double_t const kRADDEG = 180.0 / kPI ;
+ Double_t const kRADDEG = 180.0 / TMath::Pi() ;
Float_t rphi = phi / kRADDEG ;
TRotation rot ;
TRotation dummy = rot.Invert() ; // to transform from original frame to rotate frame
pos.Transform(rot) ; // rotate the baby
- }
- else {
- pos.SetX(0.);
- pos.SetY(0.);
- pos.SetZ(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)
-
- 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();
- }
- else if ( padOfCPV ) {
- padsizeZ = GetPadSizeZ();
- padsizeX = GetPadSizePhi();
- nOfPadsPhi = GetNumberOfCPVPadsPhi();
- nOfPadsZ = GetNumberOfCPVPadsZ();
- }
+ 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 ) * GetCrystalSize(0) ; // position ox Xtal with respect
- z = ( GetNZ() /2. - column + 0.5 ) * GetCrystalSize(2) ; // of center of PHOS module
+ 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 {
- 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;
- }
- 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
+ x = - ( GetNumberOfCPVPadsPhi()/2. - row - 0.5 ) * GetPadSizePhi() ; // position of pad with respect
+ z = ( GetNumberOfCPVPadsZ() /2. - column - 0.5 ) * GetPadSizeZ() ; // of center of PHOS module
}
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff