Line data Source code
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 :
6 : /* $Id$ */
7 :
8 : //_________________________________________________________________________
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 : //
17 : //*-- Author: Yves Schutz (SUBATECH)
18 :
19 : // --- ROOT system ---
20 :
21 : // --- AliRoot header files ---
22 :
23 : #include "AliPHOSGeoUtils.h"
24 : #include "AliPHOSEMCAGeometry.h"
25 : #include "AliPHOSCPVGeometry.h"
26 : #include "AliPHOSSupportGeometry.h"
27 : #include <TMatrixFfwd.h>
28 :
29 : class AliRecPoint ;
30 : class AliPHOSRecPoint;
31 : class TVector3;
32 :
33 : class AliPHOSGeometry : public AliPHOSGeoUtils {
34 :
35 : public:
36 :
37 : AliPHOSGeometry() ;
38 : AliPHOSGeometry(const AliPHOSGeometry & geom) ;
39 :
40 : virtual ~AliPHOSGeometry(void) ;
41 : static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title="") ;
42 : static AliPHOSGeometry * GetInstance() ;
43 :
44 : virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrixF & /* gmat */) const
45 0 : {GetGlobal(RecPoint,gpos); }
46 : virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) const ;
47 : virtual void GetGlobalPHOS(const AliPHOSRecPoint* RecPoint, TVector3 & gpos) const ;
48 : virtual void GetGlobalPHOS(const AliPHOSRecPoint* RecPoint, TVector3 & gpos, TMatrixF & /* gmat */) const
49 0 : {GetGlobalPHOS(RecPoint,gpos); }
50 :
51 : AliPHOSGeometry & operator = (const AliPHOSGeometry & /*rvalue*/) {
52 0 : Fatal("operator =", "not implemented") ;
53 0 : return *this ;
54 : }
55 :
56 :
57 0 : Bool_t IsInitialized(void) const { return fgInit ; }
58 :
59 : // Return general PHOS parameters
60 888 : Int_t GetNModules(void) const { return fNModules ; }
61 6 : Float_t GetPHOSAngle(Int_t index) const { return fPHOSAngle[index-1] ; }
62 2 : Float_t* GetPHOSParams(void) { return fPHOSParams;} //Half-sizes of PHOS trapecoid
63 6 : Float_t GetIPtoUpperCPVsurface(void) const { return fIPtoUpperCPVsurface ; }
64 18 : Float_t GetOuterBoxSize(Int_t index) const { return 2.*fPHOSParams[index]; }
65 155504 : Float_t GetCrystalSize(Int_t index) const { return fGeometryEMCA->GetCrystalSize(index) ; }
66 0 : Float_t GetCellStep(void) const { return 2.*fGeometryEMCA->GetAirCellHalfSize()[0];}
67 :
68 : Float_t GetModuleCenter(Int_t module, Int_t axis) const {
69 18 : return fModuleCenter[module][axis];}
70 : Float_t GetModuleAngle(Int_t module, Int_t axis, Int_t angle) const {
71 36 : return fModuleAngle[module][axis][angle];}
72 :
73 :
74 : // Return ideal EMCA geometry parameters
75 :
76 2234446 : AliPHOSEMCAGeometry * GetEMCAGeometry() const {return fGeometryEMCA ;}
77 0 : Float_t GetIPtoCrystalSurface(void) const { return fGeometryEMCA->GetIPtoCrystalSurface() ; }
78 8 : Float_t GetIPtoOuterCoverDistance(void) const { return fGeometryEMCA->GetIPtoOuterCoverDistance() ; }
79 560 : Int_t GetNPhi(void) const { return fGeometryEMCA->GetNPhi() ; }
80 559166 : Int_t GetNZ(void) const { return fGeometryEMCA->GetNZ() ; }
81 558836 : Int_t GetNCristalsInModule(void) const { return fGeometryEMCA->GetNPhi() * fGeometryEMCA->GetNZ() ; }
82 :
83 : // Return ideal CPV geometry parameters
84 0 : Int_t GetNumberOfCPVLayers(void) const { return fGeometryCPV ->GetNumberOfCPVLayers(); }
85 0 : Float_t GetCPVActiveSize(Int_t index) const { return fGeometryCPV->GetCPVActiveSize(index); }
86 0 : Int_t GetNumberOfCPVChipsPhi(void) const { return fGeometryCPV->GetNumberOfCPVChipsPhi(); }
87 0 : Int_t GetNumberOfCPVChipsZ(void) const { return fGeometryCPV->GetNumberOfCPVChipsZ(); }
88 8 : Int_t GetNumberOfCPVPadsPhi(void) const { return fGeometryCPV->GetNumberOfCPVPadsPhi(); }
89 8 : Int_t GetNumberOfCPVPadsZ(void) const { return fGeometryCPV->GetNumberOfCPVPadsZ(); }
90 0 : Float_t GetPadSizePhi(void) const { return fGeometryCPV->GetCPVPadSizePhi(); }
91 0 : Float_t GetPadSizeZ(void) const { return fGeometryCPV->GetCPVPadSizeZ(); }
92 0 : Float_t GetGassiplexChipSize(Int_t index) const { return fGeometryCPV->GetGassiplexChipSize(index); }
93 0 : Float_t GetCPVGasThickness(void) const { return fGeometryCPV->GetCPVGasThickness(); }
94 0 : Float_t GetCPVTextoliteThickness(void) const { return fGeometryCPV->GetCPVTextoliteThickness(); }
95 0 : Float_t GetCPVCuNiFoilThickness(void) const { return fGeometryCPV->GetCPVCuNiFoilThickness(); }
96 0 : Float_t GetFTPosition(Int_t index) const { return fGeometryCPV->GetFTPosition(index); }
97 0 : Float_t GetCPVFrameSize(Int_t index) const { return fGeometryCPV->GetCPVFrameSize(index); }
98 10 : Float_t GetCPVBoxSize(Int_t index) const { return fGeometryCPV ->GetCPVBoxSize(index); }
99 4 : Float_t GetIPtoCPVDistance(void) const { return GetIPtoOuterCoverDistance() -
100 2 : GetCPVBoxSize(1) - 1.0; }
101 :
102 :
103 : // Return real CPV geometry parameters
104 : void GetModuleCenter(TVector3& center, const char *det, Int_t module) const;
105 :
106 : // Return PHOS' support geometry parameters
107 :
108 12 : Float_t GetRailOuterSize(Int_t index) const { return fGeometrySUPP->GetRailOuterSize(index); }
109 10 : Float_t GetRailPart1 (Int_t index) const { return fGeometrySUPP->GetRailPart1 (index); }
110 6 : Float_t GetRailPart2 (Int_t index) const { return fGeometrySUPP->GetRailPart2 (index); }
111 12 : Float_t GetRailPart3 (Int_t index) const { return fGeometrySUPP->GetRailPart3 (index); }
112 0 : Float_t GetRailPos (Int_t index) const { return fGeometrySUPP->GetRailPos (index); }
113 0 : Float_t GetRailLength (void) const { return fGeometrySUPP->GetRailLength (); }
114 12 : Float_t GetDistanceBetwRails(void) const { return fGeometrySUPP->GetDistanceBetwRails(); }
115 4 : Float_t GetRailsDistanceFromIP(void) const { return fGeometrySUPP->GetRailsDistanceFromIP();}
116 10 : Float_t GetRailRoadSize (Int_t index) const { return fGeometrySUPP->GetRailRoadSize (index); }
117 6 : Float_t GetCradleWallThickness(void) const { return fGeometrySUPP->GetCradleWallThickness();}
118 16 : Float_t GetCradleWall (Int_t index) const { return fGeometrySUPP->GetCradleWall (index); }
119 12 : Float_t GetCradleWheel (Int_t index) const { return fGeometrySUPP->GetCradleWheel (index); }
120 : void Init(void) ; // steering method for PHOS and PPSD/CPV
121 :
122 :
123 : protected:
124 :
125 : AliPHOSGeometry(const Text_t* name, const Text_t* title="") ;
126 : private:
127 : void SetPHOSAngles(); // calculates the PHOS modules PHI angle
128 :
129 :
130 : Float_t fAngle ; // Position angles between modules
131 : Float_t *fPHOSAngle ; //[fNModules] Position angles of modules
132 : Float_t fPHOSParams[4] ; // Half-sizes of PHOS trapecoid
133 : Float_t fIPtoUpperCPVsurface; // Minimal distance from IP to PHOS
134 : Float_t fCrystalShift ; //Distance from crystal center to front surface
135 : Float_t fCryCellShift ; //Distance from crystal center to front surface
136 : TObjArray *fRotMatrixArray ; // Liste of rotation matrices (one per phos module)
137 : Float_t fModuleCenter[5][3]; // xyz-position of the module center
138 : Float_t fModuleAngle[5][3][2]; // polar and azymuth angles for 3 axes of modules
139 :
140 :
141 : static AliPHOSGeometry * fgGeom ; // pointer to the unique instance of the singleton
142 : static Bool_t fgInit ; // Tells if geometry has been succesfully set up
143 :
144 22 : ClassDef(AliPHOSGeometry,3) // PHOS geometry class
145 :
146 : } ;
147 :
148 : #endif // AliPHOSGEOMETRY_H
|
