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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 | // --- AliRoot header files --- | |
22 | ||
23 | #include "AliGeometry.h" | |
24 | #include "AliPHOSEMCAGeometry.h" | |
25 | #include "AliPHOSCPVGeometry.h" | |
26 | #include "AliPHOSSupportGeometry.h" | |
27 | ||
28 | ||
29 | class AliPHOSGeometry : public AliGeometry { | |
30 | ||
31 | public: | |
32 | ||
33 | AliPHOSGeometry() ; | |
34 | AliPHOSGeometry(const AliPHOSGeometry & geom) ; | |
35 | ||
36 | virtual ~AliPHOSGeometry(void) ; | |
37 | static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title="") ; | |
38 | static AliPHOSGeometry * GetInstance() ; | |
39 | virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrixF & gmat) const ; | |
40 | virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) const ; | |
41 | virtual Bool_t Impact(const TParticle * particle) const ; | |
42 | ||
43 | AliPHOSGeometry & operator = (const AliPHOSGeometry & /*rvalue*/) { | |
44 | Fatal("operator =", "not implemented") ; | |
45 | return *this ; | |
46 | } | |
47 | ||
48 | // General | |
49 | ||
50 | static TString Degre(void) { return TString("deg") ; } // a global for degree (deg) | |
51 | ||
52 | static TString Radian(void){ return TString("rad") ; } // a global for radian (rad) | |
53 | ||
54 | Bool_t AbsToRelNumbering(Int_t AbsId, Int_t * RelId) const ; | |
55 | // converts the absolute PHOS numbering to a relative | |
56 | ||
57 | void EmcModuleCoverage(Int_t m, Double_t & tm, Double_t & tM, Double_t & pm, | |
58 | Double_t & pM, Option_t * opt = Radian() ) const ; | |
59 | // calculates the angular coverage in theta and phi of a EMC module | |
60 | void EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt = Radian() ) const ; | |
61 | // calculates the angular coverage in theta and phi of a | |
62 | // single crystal in a EMC module | |
63 | void ImpactOnEmc(Double_t theta, Double_t phi, Int_t & ModuleNumber, | |
64 | Double_t & z, Double_t & x) const ; | |
65 | void ImpactOnEmc(const TVector3& vec, Int_t & ModuleNumber, | |
66 | Double_t & z, Double_t & x) const ; | |
67 | void ImpactOnEmc(const TParticle& p, Int_t & ModuleNumber, | |
68 | Double_t & z, Double_t & x) const ; | |
69 | // calculates the impact coordinates of a neutral particle | |
70 | // emitted in direction theta and phi in ALICE | |
71 | Bool_t IsInEMC(Int_t id) const { if (id > GetNModules() * GetNCristalsInModule() ) return kFALSE; return kTRUE; } | |
72 | void RelPosInModule(const Int_t * RelId, Float_t & y, Float_t & z) const ; | |
73 | // gets the position of element (pad or Xtal) relative to | |
74 | // center of PHOS module | |
75 | void RelPosInAlice(Int_t AbsId, TVector3 & pos) const ; | |
76 | // gets the position of element (pad or Xtal) relative to Alice | |
77 | Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) const ; | |
78 | // converts the absolute PHOS numbering to a relative | |
79 | void RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & AbsId) const; | |
80 | // converts local PHOS-module (x, z) coordinates to absId | |
81 | ||
82 | Bool_t IsInitialized(void) const { return fgInit ; } | |
83 | ||
84 | // Return general PHOS parameters | |
85 | Int_t GetNModules(void) const { return fNModules ; } | |
86 | Float_t GetPHOSAngle(Int_t index) const { return fPHOSAngle[index-1] ; } | |
87 | Float_t* GetPHOSParams(void) { return fPHOSParams;} //Half-sizes of PHOS trapecoid | |
88 | Float_t GetIPtoUpperCPVsurface(void) const { return fIPtoUpperCPVsurface ; } | |
89 | Float_t GetOuterBoxSize(Int_t index) const { return 2.*fPHOSParams[index]; } | |
90 | Float_t GetCrystalSize(Int_t index) const { return fGeometryEMCA->GetCrystalSize(index) ; } | |
91 | Float_t GetCellStep(void) const { return 2*(fGeometryEMCA->GetAirCellHalfSize()[0] + | |
92 | fGeometryEMCA->GetStripWallWidthOut()) ;} | |
93 | ||
94 | Float_t GetModuleCenter(Int_t module, Int_t axis) const { | |
95 | return fModuleCenter[module][axis];} | |
96 | Float_t GetModuleAngle(Int_t module, Int_t axis, Int_t angle) const { | |
97 | return fModuleAngle[module][axis][angle];} | |
98 | ||
99 | ||
100 | // Return EMCA geometry parameters | |
101 | ||
102 | AliPHOSEMCAGeometry * GetEMCAGeometry() const {return fGeometryEMCA ;} | |
103 | Float_t GetIPtoCrystalSurface(void) const { return fGeometryEMCA->GetIPtoCrystalSurface() ; } | |
104 | Float_t GetIPtoOuterCoverDistance(void) const { return fGeometryEMCA->GetIPtoOuterCoverDistance() ; } | |
105 | Int_t GetNPhi(void) const { return fGeometryEMCA->GetNPhi() ; } | |
106 | Int_t GetNZ(void) const { return fGeometryEMCA->GetNZ() ; } | |
107 | Int_t GetNCristalsInModule(void) const { return fGeometryEMCA->GetNPhi() * fGeometryEMCA->GetNZ() ; } | |
108 | ||
109 | // Return CPV geometry parameters | |
110 | Int_t GetNumberOfCPVLayers(void) const { return fGeometryCPV ->GetNumberOfCPVLayers(); } | |
111 | Float_t GetCPVActiveSize(Int_t index) const { return fGeometryCPV->GetCPVActiveSize(index); } | |
112 | Int_t GetNumberOfCPVChipsPhi(void) const { return fGeometryCPV->GetNumberOfCPVChipsPhi(); } | |
113 | Int_t GetNumberOfCPVChipsZ(void) const { return fGeometryCPV->GetNumberOfCPVChipsZ(); } | |
114 | Int_t GetNumberOfCPVPadsPhi(void) const { return fGeometryCPV->GetNumberOfCPVPadsPhi(); } | |
115 | Int_t GetNumberOfCPVPadsZ(void) const { return fGeometryCPV->GetNumberOfCPVPadsZ(); } | |
116 | Float_t GetPadSizePhi(void) const { return fGeometryCPV->GetCPVPadSizePhi(); } | |
117 | Float_t GetPadSizeZ(void) const { return fGeometryCPV->GetCPVPadSizeZ(); } | |
118 | Float_t GetGassiplexChipSize(Int_t index) const { return fGeometryCPV->GetGassiplexChipSize(index); } | |
119 | Float_t GetCPVGasThickness(void) const { return fGeometryCPV->GetCPVGasThickness(); } | |
120 | Float_t GetCPVTextoliteThickness(void) const { return fGeometryCPV->GetCPVTextoliteThickness(); } | |
121 | Float_t GetCPVCuNiFoilThickness(void) const { return fGeometryCPV->GetCPVCuNiFoilThickness(); } | |
122 | Float_t GetFTPosition(Int_t index) const { return fGeometryCPV->GetFTPosition(index); } | |
123 | Float_t GetCPVFrameSize(Int_t index) const { return fGeometryCPV->GetCPVFrameSize(index); } | |
124 | Float_t GetCPVBoxSize(Int_t index) const { return fGeometryCPV ->GetCPVBoxSize(index); } | |
125 | Float_t GetIPtoCPVDistance(void) const { return GetIPtoOuterCoverDistance() - | |
126 | GetCPVBoxSize(1) - 1.0; } | |
127 | void GetModuleCenter(TVector3& center, const char *det, Int_t module) const; | |
128 | void Global2Local(TVector3& localPosition, | |
129 | const TVector3& globalPosition, | |
130 | Int_t module) const; | |
131 | ||
132 | // Return PHOS' support geometry parameters | |
133 | ||
134 | Float_t GetRailOuterSize(Int_t index) const { return fGeometrySUPP->GetRailOuterSize(index); } | |
135 | Float_t GetRailPart1 (Int_t index) const { return fGeometrySUPP->GetRailPart1 (index); } | |
136 | Float_t GetRailPart2 (Int_t index) const { return fGeometrySUPP->GetRailPart2 (index); } | |
137 | Float_t GetRailPart3 (Int_t index) const { return fGeometrySUPP->GetRailPart3 (index); } | |
138 | Float_t GetRailPos (Int_t index) const { return fGeometrySUPP->GetRailPos (index); } | |
139 | Float_t GetRailLength (void) const { return fGeometrySUPP->GetRailLength (); } | |
140 | Float_t GetDistanceBetwRails(void) const { return fGeometrySUPP->GetDistanceBetwRails(); } | |
141 | Float_t GetRailsDistanceFromIP(void) const { return fGeometrySUPP->GetRailsDistanceFromIP();} | |
142 | Float_t GetRailRoadSize (Int_t index) const { return fGeometrySUPP->GetRailRoadSize (index); } | |
143 | Float_t GetCradleWallThickness(void) const { return fGeometrySUPP->GetCradleWallThickness();} | |
144 | Float_t GetCradleWall (Int_t index) const { return fGeometrySUPP->GetCradleWall (index); } | |
145 | Float_t GetCradleWheel (Int_t index) const { return fGeometrySUPP->GetCradleWheel (index); } | |
146 | void Init(void) ; // steering method for PHOS and PPSD/CPV | |
147 | ||
148 | ||
149 | protected: | |
150 | ||
151 | AliPHOSGeometry(const Text_t* name, const Text_t* title="") ; | |
152 | private: | |
153 | ||
154 | Int_t fNModules ; // Number of modules constituing PHOS | |
155 | Float_t fAngle ; // Position angles between modules | |
156 | Float_t *fPHOSAngle ; //[fNModules] Position angles of modules | |
157 | Float_t fPHOSParams[4] ; // Half-sizes of PHOS trapecoid | |
158 | Float_t fIPtoUpperCPVsurface; // Minimal distance from IP to PHOS | |
159 | TObjArray *fRotMatrixArray ; // Liste of rotation matrices (one per phos module) | |
160 | AliPHOSEMCAGeometry *fGeometryEMCA ; // Geometry object for Electromagnetic calorimeter | |
161 | AliPHOSCPVGeometry *fGeometryCPV ; // Geometry object for CPV (IHEP) | |
162 | AliPHOSSupportGeometry *fGeometrySUPP ; // Geometry object for PHOS support | |
163 | Float_t fModuleCenter[5][3]; // xyz-position of the module center | |
164 | Float_t fModuleAngle[5][3][2]; // polar and azymuth angles for 3 axes of modules | |
165 | ||
166 | void SetPHOSAngles(); // calculates the PHOS modules PHI angle | |
167 | ||
168 | static AliPHOSGeometry * fgGeom ; // pointer to the unique instance of the singleton | |
169 | static Bool_t fgInit ; // Tells if geometry has been succesfully set up | |
170 | ||
171 | ClassDef(AliPHOSGeometry,2) // PHOS geometry class | |
172 | ||
173 | } ; | |
174 | ||
175 | #endif // AliPHOSGEOMETRY_H |