Coding convention obeyed
[u/mrichter/AliRoot.git] / PHOS / AliPHOSGeometry.h
CommitLineData
daa2ae2f 1#ifndef ALIPHOSGEOMETRY_H
2#define ALIPHOSGEOMETRY_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6ad0bfa0 6/* $Id$ */
7
b2a60966 8//_________________________________________________________________________
a3dfe79c 9// Geometry class for PHOS : singleton
10// PHOS consists of the electromagnetic calorimeter (EMCA)
11// and a charged particle veto either in the Subatech's version (PPSD)
12// or in the IHEP's one (CPV).
13// The EMCA/PPSD/CPV modules are parametrized so that any configuration
14// can be easily implemented
15// The title is used to identify the version of CPV used.
16//
b2a60966 17//*-- Author: Yves Schutz (SUBATECH)
d15a28e7 18
19// --- ROOT system ---
20
daa2ae2f 21#include "TString.h"
22#include "TObjArray.h"
1c9d8212 23#include "TParticle.h"
daa2ae2f 24#include "TVector3.h"
d15a28e7 25
26// --- AliRoot header files ---
27
daa2ae2f 28#include "AliGeometry.h"
468794ea 29
eb92d866 30#include "AliPHOSEMCAGeometry.h"
31#include "AliPHOSCPVGeometry.h"
ed19b2e1 32#include "AliPHOSSupportGeometry.h"
daa2ae2f 33
9f616d61 34
daa2ae2f 35class AliPHOSGeometry : public AliGeometry {
36
37public:
38
0bc3b8ed 39 AliPHOSGeometry() ;
52a36ffd 40
6c370def 41 AliPHOSGeometry(const AliPHOSGeometry & geom) {
52a36ffd 42 // cpy ctor requested by Coding Convention but not yet needed
0bc3b8ed 43 Fatal("cpy ctor", "not implemented") ;
6c370def 44 }
45
daa2ae2f 46 virtual ~AliPHOSGeometry(void) ;
282c5906 47 static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title="") ;
daa2ae2f 48 static AliPHOSGeometry * GetInstance() ;
1c9d8212 49 virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat) const ;
50 virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) const ;
51 virtual Bool_t Impact(const TParticle * particle) const ;
daa2ae2f 52
c6e196df 53 AliPHOSGeometry & operator = (const AliPHOSGeometry & rvalue) const {
52a36ffd 54 // assignement operator requested by coding convention but not needed
0bc3b8ed 55 Fatal("operator =", "not implemented") ; return *(GetInstance()) ;
6c370def 56 }
cf0c2bc1 57
daa2ae2f 58 // General
59
2725c395 60 static TString Degre(void) { return TString("deg") ; } // a global for degree (deg)
cf0c2bc1 61
2725c395 62 static TString Radian(void){ return TString("rad") ; } // a global for radian (rad)
52a36ffd 63
710f859a 64 Bool_t AbsToRelNumbering(const Int_t AbsId, Int_t * RelId) const ;
65 // converts the absolute PHOS numbering to a relative
52a36ffd 66
710f859a 67 void EmcModuleCoverage(const Int_t m, Double_t & tm, Double_t & tM, Double_t & pm,
68 Double_t & pM, Option_t * opt = Radian() ) const ;
69 // calculates the angular coverage in theta and phi of a EMC module
7b7c1533 70 void EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt = Radian() ) const ;
710f859a 71 // calculates the angular coverage in theta and phi of a
72 // single crystal in a EMC module
73 void ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber,
74 Double_t & z, Double_t & x) const ;
75 // calculates the impact coordinates of a neutral particle
76 // emitted in direction theta and phi in ALICE
8f09b22b 77 Bool_t IsInEMC(const Int_t id) const { if (id > GetNModules() * GetNCristalsInModule() ) return kFALSE; return kTRUE; }
710f859a 78 void RelPosInModule(const Int_t * RelId, Float_t & y, Float_t & z) const ;
79 // gets the position of element (pad or Xtal) relative to
80 // center of PHOS module
81 void RelPosInAlice(const Int_t AbsId, TVector3 & pos) const ;
82 // gets the position of element (pad or Xtal) relative to Alice
83 Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) const ;
84 // converts the absolute PHOS numbering to a relative
8e1eafd3 85 void RelPosToAbsId(const Int_t module , const Double_t x, const Double_t z, Int_t & AbsId)const; // Converts local PHOS-module (x, z) coordinates to absId
710f859a 86 Bool_t IsInitialized(void) const { return fgInit ; }
c198e326 87
52a36ffd 88 // Return general PHOS parameters
710f859a 89 Int_t GetNModules(void) const { return fNModules ; }
90 Float_t GetPHOSAngle(Int_t index) const { return fPHOSAngle[index-1] ; }
91 Float_t* GetPHOSParams(void) { return fPHOSParams;} //Half-sizes of PHOS trapecoid
92 Float_t GetIPtoUpperCPVsurface(void) const { return fIPtoUpperCPVsurface ; }
93 Float_t GetOuterBoxSize(Int_t index) const { return 2.*fPHOSParams[index]; }
94 Float_t GetCrystalSize(Int_t index) const { return fGeometryEMCA->GetCrystalSize(index) ; }
66c3e8ff 95 Float_t GetCellStep(void) const { return 2*(fGeometryEMCA->GetAirCellHalfSize()[0] +
96 fGeometryEMCA->GetStripWallWidthOut()) ;}
710f859a 97
98 // Return EMCA geometry parameters
99
100 AliPHOSEMCAGeometry * GetEMCAGeometry() const {return fGeometryEMCA ;}
101 Float_t GetIPtoCrystalSurface(void) const { return fGeometryEMCA->GetIPtoCrystalSurface() ; }
102 Float_t GetIPtoOuterCoverDistance(void) const { return fGeometryEMCA->GetIPtoOuterCoverDistance() ; }
103 Int_t GetNPhi(void) const { return fGeometryEMCA->GetNPhi() ; }
104 Int_t GetNZ(void) const { return fGeometryEMCA->GetNZ() ; }
105 Int_t GetNCristalsInModule(void) const { return fGeometryEMCA->GetNPhi() * fGeometryEMCA->GetNZ() ; }
106
107 // Return CPV geometry parameters
ed4205d8 108 Int_t GetNumberOfCPVLayers(void) const { return fGeometryCPV ->GetNumberOfCPVLayers(); }
ed4205d8 109 Float_t GetCPVActiveSize(Int_t index) const { return fGeometryCPV->GetCPVActiveSize(index); }
110 Int_t GetNumberOfCPVChipsPhi(void) const { return fGeometryCPV->GetNumberOfCPVChipsPhi(); }
111 Int_t GetNumberOfCPVChipsZ(void) const { return fGeometryCPV->GetNumberOfCPVChipsZ(); }
112 Int_t GetNumberOfCPVPadsPhi(void) const { return fGeometryCPV->GetNumberOfCPVPadsPhi(); }
113 Int_t GetNumberOfCPVPadsZ(void) const { return fGeometryCPV->GetNumberOfCPVPadsZ(); }
114 Float_t GetPadSizePhi(void) const { return fGeometryCPV->GetCPVPadSizePhi(); }
115 Float_t GetPadSizeZ(void) const { return fGeometryCPV->GetCPVPadSizeZ(); }
116 Float_t GetGassiplexChipSize(Int_t index) const { return fGeometryCPV->GetGassiplexChipSize(index); }
117 Float_t GetCPVGasThickness(void) const { return fGeometryCPV->GetCPVGasThickness(); }
118 Float_t GetCPVTextoliteThickness(void) const { return fGeometryCPV->GetCPVTextoliteThickness(); }
119 Float_t GetCPVCuNiFoilThickness(void) const { return fGeometryCPV->GetCPVCuNiFoilThickness(); }
120 Float_t GetFTPosition(Int_t index) const { return fGeometryCPV->GetFTPosition(index); }
121 Float_t GetCPVFrameSize(Int_t index) const { return fGeometryCPV->GetCPVFrameSize(index); }
710f859a 122 Float_t GetCPVBoxSize(Int_t index) const { return fGeometryCPV ->GetCPVBoxSize(index); }
123 Float_t GetIPtoCPVDistance(void) const { return GetIPtoOuterCoverDistance() -
124 GetCPVBoxSize(1) - 1.0; }
52a36ffd 125
710f859a 126 // Return PHOS' support geometry parameters
ed19b2e1 127
128 Float_t GetRailOuterSize(Int_t index) const { return fGeometrySUPP->GetRailOuterSize(index); }
129 Float_t GetRailPart1 (Int_t index) const { return fGeometrySUPP->GetRailPart1 (index); }
130 Float_t GetRailPart2 (Int_t index) const { return fGeometrySUPP->GetRailPart2 (index); }
131 Float_t GetRailPart3 (Int_t index) const { return fGeometrySUPP->GetRailPart3 (index); }
132 Float_t GetRailPos (Int_t index) const { return fGeometrySUPP->GetRailPos (index); }
710f859a 133 Float_t GetRailLength (void) const { return fGeometrySUPP->GetRailLength (); }
134 Float_t GetDistanceBetwRails(void) const { return fGeometrySUPP->GetDistanceBetwRails(); }
135 Float_t GetRailsDistanceFromIP(void) const { return fGeometrySUPP->GetRailsDistanceFromIP();}
ed19b2e1 136 Float_t GetRailRoadSize (Int_t index) const { return fGeometrySUPP->GetRailRoadSize (index); }
710f859a 137 Float_t GetCradleWallThickness(void) const { return fGeometrySUPP->GetCradleWallThickness();}
ed19b2e1 138 Float_t GetCradleWall (Int_t index) const { return fGeometrySUPP->GetCradleWall (index); }
139 Float_t GetCradleWheel (Int_t index) const { return fGeometrySUPP->GetCradleWheel (index); }
daa2ae2f 140
6c370def 141protected:
142
aafe457d 143 AliPHOSGeometry(const Text_t* name, const Text_t* title="") : AliGeometry(name, title) {
6c370def 144 // ctor only for internal usage (singleton)
145 Init() ;
52a36ffd 146 }
147 void Init(void) ; // steering method for PHOS and PPSD/CPV
6c370def 148
daa2ae2f 149private:
6c370def 150
eb92d866 151 Int_t fNModules ; // Number of modules constituing PHOS
ed4205d8 152 Float_t fAngle ; // Position angles between modules
eb92d866 153 Float_t *fPHOSAngle ; //[fNModules] Position angles of modules
710f859a 154 Float_t fPHOSParams[4] ; // Half-sizes of PHOS trapecoid
155 Float_t fIPtoUpperCPVsurface; // Minimal distance from IP to PHOS
eb92d866 156 TObjArray *fRotMatrixArray ; // Liste of rotation matrices (one per phos module)
157 AliPHOSEMCAGeometry *fGeometryEMCA ; // Geometry object for Electromagnetic calorimeter
ed4205d8 158 AliPHOSCPVGeometry *fGeometryCPV ; // Geometry object for CPV (IHEP)
ed19b2e1 159 AliPHOSSupportGeometry *fGeometrySUPP ; // Geometry object for PHOS support
52a36ffd 160
ed4205d8 161 void SetPHOSAngles(); // calculates the PHOS modules PHI angle
daa2ae2f 162
88714635 163 static AliPHOSGeometry * fgGeom ; // pointer to the unique instance of the singleton
52a36ffd 164 static Bool_t fgInit ; // Tells if geometry has been succesfully set up
daa2ae2f 165
52a36ffd 166 ClassDef(AliPHOSGeometry,1) // PHOS geometry class
daa2ae2f 167
168} ;
169
170#endif // AliPHOSGEOMETRY_H