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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 | #include "TString.h" | |
22 | #include "TObjArray.h" | |
23 | #include "TParticle.h" | |
24 | #include "TVector3.h" | |
25 | ||
26 | // --- AliRoot header files --- | |
27 | ||
28 | #include "AliGeometry.h" | |
29 | ||
30 | #include "AliPHOSEMCAGeometry.h" | |
31 | #include "AliPHOSCPVGeometry.h" | |
32 | #include "AliPHOSSupportGeometry.h" | |
33 | ||
34 | ||
35 | class AliPHOSGeometry : public AliGeometry { | |
36 | ||
37 | public: | |
38 | ||
39 | AliPHOSGeometry() ; | |
40 | ||
41 | AliPHOSGeometry(const AliPHOSGeometry & geom) { | |
42 | // cpy ctor requested by Coding Convention but not yet needed | |
43 | Fatal("cpy ctor", "not implemented") ; | |
44 | } | |
45 | ||
46 | virtual ~AliPHOSGeometry(void) ; | |
47 | static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title="") ; | |
48 | static AliPHOSGeometry * GetInstance() ; | |
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 ; | |
52 | ||
53 | AliPHOSGeometry & operator = (const AliPHOSGeometry & rvalue) const { | |
54 | // assignement operator requested by coding convention but not needed | |
55 | Fatal("operator =", "not implemented") ; return *(GetInstance()) ; | |
56 | } | |
57 | ||
58 | // General | |
59 | ||
60 | static TString Degre(void) { return TString("deg") ; } // a global for degree (deg) | |
61 | ||
62 | static TString Radian(void){ return TString("rad") ; } // a global for radian (rad) | |
63 | ||
64 | Bool_t AbsToRelNumbering(const Int_t AbsId, Int_t * RelId) const ; | |
65 | // converts the absolute PHOS numbering to a relative | |
66 | ||
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 | |
70 | void EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt = Radian() ) const ; | |
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 | |
77 | Bool_t IsInEMC(const Int_t id) const { if (id > GetNModules() * GetNCristalsInModule() ) return kFALSE; return kTRUE; } | |
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 | |
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 | |
86 | Bool_t IsInitialized(void) const { return fgInit ; } | |
87 | ||
88 | // Return general PHOS parameters | |
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) ; } | |
95 | Float_t GetCellStep(void) const { return 2*(fGeometryEMCA->GetAirCellHalfSize()[0] + | |
96 | fGeometryEMCA->GetStripWallWidthOut()) ;} | |
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 | |
108 | Int_t GetNumberOfCPVLayers(void) const { return fGeometryCPV ->GetNumberOfCPVLayers(); } | |
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); } | |
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; } | |
125 | ||
126 | // Return PHOS' support geometry parameters | |
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); } | |
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();} | |
136 | Float_t GetRailRoadSize (Int_t index) const { return fGeometrySUPP->GetRailRoadSize (index); } | |
137 | Float_t GetCradleWallThickness(void) const { return fGeometrySUPP->GetCradleWallThickness();} | |
138 | Float_t GetCradleWall (Int_t index) const { return fGeometrySUPP->GetCradleWall (index); } | |
139 | Float_t GetCradleWheel (Int_t index) const { return fGeometrySUPP->GetCradleWheel (index); } | |
140 | ||
141 | protected: | |
142 | ||
143 | AliPHOSGeometry(const Text_t* name, const Text_t* title="") : AliGeometry(name, title) { | |
144 | // ctor only for internal usage (singleton) | |
145 | Init() ; | |
146 | } | |
147 | void Init(void) ; // steering method for PHOS and PPSD/CPV | |
148 | ||
149 | private: | |
150 | ||
151 | Int_t fNModules ; // Number of modules constituing PHOS | |
152 | Float_t fAngle ; // Position angles between modules | |
153 | Float_t *fPHOSAngle ; //[fNModules] Position angles of modules | |
154 | Float_t fPHOSParams[4] ; // Half-sizes of PHOS trapecoid | |
155 | Float_t fIPtoUpperCPVsurface; // Minimal distance from IP to PHOS | |
156 | TObjArray *fRotMatrixArray ; // Liste of rotation matrices (one per phos module) | |
157 | AliPHOSEMCAGeometry *fGeometryEMCA ; // Geometry object for Electromagnetic calorimeter | |
158 | AliPHOSCPVGeometry *fGeometryCPV ; // Geometry object for CPV (IHEP) | |
159 | AliPHOSSupportGeometry *fGeometrySUPP ; // Geometry object for PHOS support | |
160 | ||
161 | void SetPHOSAngles(); // calculates the PHOS modules PHI angle | |
162 | ||
163 | static AliPHOSGeometry * fgGeom ; // pointer to the unique instance of the singleton | |
164 | static Bool_t fgInit ; // Tells if geometry has been succesfully set up | |
165 | ||
166 | ClassDef(AliPHOSGeometry,1) // PHOS geometry class | |
167 | ||
168 | } ; | |
169 | ||
170 | #endif // AliPHOSGEOMETRY_H |