ALICE FMD Off-line: AliFMDGeometry.h Source File

00001 #ifndef ALIFMDGEOMETRY_H
00002 #define ALIFMDGEOMETRY_H
00003 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights
00004  * reserved. 
00005  *
00006  * Latest changes by Christian Holm Christensen <cholm@nbi.dk>
00007  *
00008  * See cxx source for full Copyright notice                               
00009  */
00010 //____________________________________________________________________ 
00011 //  
00012 // Forward Multiplicity Detector based on Silicon wafers. 
00013 //
00014 // This class is a singleton that handles the geometry parameters of
00015 // the FMD detectors.  
00016 //                                                       
00017 #ifndef ALIGEOMETRY_H
00018 # include <AliGeometry.h>
00019 #endif
00020 #ifndef ROOT_TArrayI
00021 # include <TArrayI.h>
00022 #endif
00023 #ifndef ROOT_TMatrixFfwd
00024 # include <TMatrixFfwd.h>
00025 #endif
00026 class TVector3;
00027 class TParticle;
00028 class AliRecPoint;
00029 class AliFMDRing;
00030 class AliFMDDetector;
00031 class AliFMD1;
00032 class AliFMD2;
00033 class AliFMD3;
00034 class AliFMDGeometryBuilder;
00035 
00036 
00037 //__________________________________________________________________
00077 class AliFMDGeometry : public AliGeometry
00078 {
00079 public:
00081   static AliFMDGeometry* Instance();
00083   virtual void Init();
00085   virtual void InitTransformations();
00087   AliFMDRing*     GetInner() const { return fInner; }
00089   AliFMDRing*     GetOuter() const { return fOuter; }
00091   AliFMD1*        GetFMD1()  const { return (fUseFMD1 ? fFMD1 : 0); }
00093   AliFMD2*        GetFMD2()  const { return (fUseFMD2 ? fFMD2 : 0); }
00095   AliFMD3*        GetFMD3()  const { return (fUseFMD3 ? fFMD3 : 0); }
00099   AliFMDDetector* GetDetector(Int_t i) const;
00103   AliFMDRing*     GetRing(Char_t i) const;
00105   void            Disable(Int_t i);
00107   void            Enable(Int_t i);
00109   Double_t        GetSiDensity() const { return 2.33; }
00121   void            Detector2XYZ(UShort_t detector, Char_t ring, 
00122                                UShort_t sector, UShort_t strip, 
00123                                Double_t& x, Double_t& y, Double_t& z) const;
00142   Bool_t          XYZ2Detector(Double_t x, Double_t y, Double_t z, 
00143                                UShort_t& detector, Char_t& ring, 
00144                                UShort_t& sector, UShort_t& strip) const;
00146   void   Build();
00148   Int_t  GetDetectorOff() const    { return fDetectorOff; }
00150   Int_t  GetModuleOff() const      { return fModuleOff;   }
00152   Int_t  GetRingOff() const        { return fRingOff;     }
00154   Int_t  GetSectorOff() const      { return fSectorOff;   }
00156   void   SetDetectorOff(Int_t off) { fDetectorOff = off; }
00158   void   SetModuleOff(Int_t off)   { fModuleOff   = off; }
00160   void   SetRingOff(Int_t off)     { fRingOff     = off; }
00162   void   SetSectorOff(Int_t off)   { fSectorOff   = off; }
00166   Bool_t IsActive(Int_t vol) const;
00170   void   SetActive(Int_t* active, Int_t n);
00172   void   AddActive(Int_t id);
00175   void   SetBuilder(AliFMDGeometryBuilder* b) { fBuilder = b; }
00177   void   ExtractGeomInfo();
00180   void   SetDetailed(Bool_t det) { fDetailed = det; }
00182   Bool_t IsDetailed() const { return fDetailed; }
00184   void   UseAssembly(Bool_t ass)  { fUseAssembly = ass; }
00185 
00186   // AliGeometry member functions 
00191   virtual void GetGlobal(const AliRecPoint* p, TVector3& pos, 
00192                          TMatrixF& mat) const;
00196   virtual void GetGlobal(const AliRecPoint* p, TVector3& pos) const;
00201   virtual Bool_t Impact(const TParticle* particle) const;
00202 protected:
00203   Bool_t        fIsInitialized; // Whether singleton is initalized
00204   AliFMDRing*   fInner;         // Inner ring geometry information
00205   AliFMDRing*   fOuter;         // Outer ring geometry information
00206   AliFMD1*      fFMD1;          // FMD1 geometry information
00207   AliFMD2*      fFMD2;          // FMD2 geometry information
00208   AliFMD3*      fFMD3;          // FMD3 geometry information
00209   Bool_t        fUseFMD1;       // Wheter to Use FMD1 or not
00210   Bool_t        fUseFMD2;       // Wheter to Use FMD2 or not
00211   Bool_t        fUseFMD3;       // Wheter to Use FMD3 or not
00212   static AliFMDGeometry* fgInstance; // Singleton instance 
00214   AliFMDGeometry();
00217   AliFMDGeometry(const AliFMDGeometry& other);
00221   AliFMDGeometry& operator=(const AliFMDGeometry& other);
00222   virtual ~AliFMDGeometry() {}
00223   
00224   AliFMDGeometryBuilder* fBuilder;
00225   Int_t fDetectorOff;
00226   Int_t fModuleOff;  
00227   Int_t fRingOff;    
00228   Int_t fSectorOff;  
00229   TArrayI fActive;
00230   Bool_t fDetailed;
00231   Bool_t fUseAssembly;
00232 
00233   ClassDef(AliFMDGeometry,1); //
00234 };
00235 
00236 
00237 #endif
00238 //____________________________________________________________________
00239 //
00240 // Local Variables:
00241 //   mode: C++
00242 // End:
00243 //
00244 // EOF
00245 //