Geant4 Cross Reference |
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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // G4GeometryTolerance << 27 // 26 // 28 // Class description: << 27 // $Id: G4GeometryTolerance.hh 70333 2013-05-29 08:56:45Z gcosmo $ >> 28 // >> 29 // -------------------------------------------------------------------- >> 30 // GEANT 4 class header file >> 31 // >> 32 // Class Description: 29 // 33 // 30 // A singleton class for computation and stora 34 // A singleton class for computation and storage of the tolerance values 31 // used by the geometry modeler for precision 35 // used by the geometry modeler for precision on boundaries. 32 // The Cartesian tolerance defines the thickne 36 // The Cartesian tolerance defines the thickness of the surface of the 33 // geometrical shapes for their inner funtions 37 // geometrical shapes for their inner funtions and for the tracking. The 34 // tolerance must be greater than the largest 38 // tolerance must be greater than the largest mathematical error from the 35 // shape distance calculation functions. The t 39 // shape distance calculation functions. The tolerance is centred on the 36 // surface, e.g. the Inside() method of a soli 40 // surface, e.g. the Inside() method of a solid uses a tolerance dx +/- kTol/2. 37 // The Cartesian tolerance can either be set t 41 // The Cartesian tolerance can either be set to a fixed value (1E-9 mm) 38 // or to a value computed on the basis of the 42 // or to a value computed on the basis of the maximum extent of the 39 // world volume assigned through the G4Geometr 43 // world volume assigned through the G4GeometryManager at the beginning 40 // of the application -before- any geometrical 44 // of the application -before- any geometrical object is created. 41 45 42 // ---------------- G4GeometryTolerance - 46 // ---------------- G4GeometryTolerance ---------------- 43 // 47 // 44 // Author: G.Cosmo (CERN), 30 October 2006 << 48 // Author: G.Cosmo (CERN), October 2006 45 // ------------------------------------------- << 49 // ------------------------------------------------------------ >> 50 46 #ifndef G4GeometryTolerance_hh 51 #ifndef G4GeometryTolerance_hh 47 #define G4GeometryTolerance_hh 52 #define G4GeometryTolerance_hh 48 53 49 #include "G4Types.hh" 54 #include "G4Types.hh" 50 55 51 class G4GeometryTolerance 56 class G4GeometryTolerance 52 { 57 { 53 friend class G4GeometryManager; 58 friend class G4GeometryManager; 54 59 55 public: // with description << 60 public: // with description 56 static G4GeometryTolerance* GetInstance(); << 61 57 // Get a pointer to the unique G4GeometryTol << 62 static G4GeometryTolerance* GetInstance(); 58 // creating it if necessary and setting the << 63 // Get a pointer to the unique G4GeometryTolerance, 59 G4double GetSurfaceTolerance() const; << 64 // creating it if necessary and setting the tolerances. 60 // Returns the current Cartesian tolerance o << 65 G4double GetSurfaceTolerance() const; 61 G4double GetAngularTolerance() const; << 66 // Returns the current Cartesian tolerance of a surface. 62 // Returns the current angular tolerance. << 67 G4double GetAngularTolerance() const; 63 G4double GetRadialTolerance() const; << 68 // Returns the current angular tolerance. 64 // Returns the current radial tolerance. << 69 G4double GetRadialTolerance() const; 65 << 70 // Returns the current radial tolerance. 66 public: // without description << 71 67 ~G4GeometryTolerance() = default; << 72 protected: 68 // Destructor. << 73 69 << 74 static void SetSurfaceTolerance(G4double worldExtent); 70 protected: << 75 // Sets the Cartesian surface tolerance to a value computed 71 void SetSurfaceTolerance(G4double worldExten << 76 // from the maximum extent of the world volume. This method 72 // Sets the Cartesian and Radial surface tol << 77 // can be called only once, and is done only through the 73 // from the maximum extent of the world volu << 78 // G4GeometryManager class. 74 // can be called only once, and is done only << 79 75 // G4GeometryManager class. << 80 G4GeometryTolerance(); 76 << 81 ~G4GeometryTolerance(); 77 G4GeometryTolerance(); << 82 // Protected constructor and destructor. 78 // Protected constructor. << 83 79 << 84 private: 80 private: << 85 81 static G4ThreadLocal G4GeometryTolerance* fp << 86 static G4GeometryTolerance* fpInstance; 82 G4double fCarTolerance; << 87 static G4double fCarTolerance; 83 G4double fAngTolerance; << 88 static G4double fAngTolerance; 84 G4double fRadTolerance; << 89 static G4double fRadTolerance; 85 G4bool fInitialised = false; << 90 static G4bool fInitialised; 86 }; << 91 }; >> 92 >> 93 #endif // G4GeometryTolerance_hh 87 94 88 #endif << 89 95