| Geant4 Cross Reference |
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25 //
26 // G4VCSGfaceted
27 //
28 // Class description:
29 //
30 // Virtual class defining CSG-like type shape that is built entirely
31 // of G4CSGface faces.
32
33 // Author: David C. Williams (davidw@scipp.ucsc.edu)
34 // --------------------------------------------------------------------
35 #ifndef G4VCSGFACETED_HH
36 #define G4VCSGFACETED_HH 1
37
38 #include "G4VSolid.hh"
39
40 class G4VCSGface;
41 class G4VisExtent;
42
43 class G4VCSGfaceted : public G4VSolid
44 {
45 public:
46
47 G4VCSGfaceted( const G4String& name );
48 ~G4VCSGfaceted() override;
49
50 G4VCSGfaceted( const G4VCSGfaceted& source );
51 G4VCSGfaceted& operator=( const G4VCSGfaceted& source );
52
53 G4bool CalculateExtent( const EAxis pAxis,
54 const G4VoxelLimits& pVoxelLimit,
55 const G4AffineTransform& pTransform,
56 G4double& pmin, G4double& pmax) const override;
57
58 EInside Inside( const G4ThreeVector& p ) const override;
59
60 G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const override;
61
62 G4double DistanceToIn( const G4ThreeVector& p,
63 const G4ThreeVector& v ) const override;
64 G4double DistanceToIn( const G4ThreeVector& p ) const override;
65 G4double DistanceToOut( const G4ThreeVector& p,
66 const G4ThreeVector& v,
67 const G4bool calcNorm = false,
68 G4bool* validNorm = nullptr,
69 G4ThreeVector* n = nullptr ) const override;
70 G4double DistanceToOut( const G4ThreeVector& p ) const override;
71
72 G4GeometryType GetEntityType() const override;
73
74 std::ostream& StreamInfo(std::ostream& os) const override;
75
76 G4Polyhedron* CreatePolyhedron() const override = 0;
77
78 void DescribeYourselfTo( G4VGraphicsScene& scene ) const override;
79
80 G4VisExtent GetExtent() const override;
81
82 G4Polyhedron* GetPolyhedron () const override;
83
84 G4int GetCubVolStatistics() const;
85 G4double GetCubVolEpsilon() const;
86 void SetCubVolStatistics(G4int st);
87 void SetCubVolEpsilon(G4double ep);
88 G4int GetAreaStatistics() const;
89 G4double GetAreaAccuracy() const;
90 void SetAreaStatistics(G4int st);
91 void SetAreaAccuracy(G4double ep);
92
93 G4double GetCubicVolume() override;
94 // Returns an estimation of the geometrical cubic volume of the
95 // solid. Caches the computed value once computed the first time.
96 G4double GetSurfaceArea() override;
97 // Returns an estimation of the geometrical surface area of the
98 // solid. Caches the computed value once computed the first time.
99
100 G4VCSGfaceted(__void__&);
101 // Fake default constructor for usage restricted to direct object
102 // persistency for clients requiring preallocation of memory for
103 // persistifiable objects.
104
105 protected:
106
107 G4int numFace = 0;
108 G4VCSGface **faces = nullptr;
109 G4double fCubicVolume = 0.0;
110 G4double fSurfaceArea = 0.0;
111 mutable G4bool fRebuildPolyhedron = false;
112 mutable G4Polyhedron* fpPolyhedron = nullptr;
113
114 virtual G4double DistanceTo( const G4ThreeVector& p,
115 const G4bool outgoing ) const;
116
117 G4ThreeVector GetPointOnSurfaceGeneric()const;
118 // Returns a random point located on the surface of the solid
119 // in case of generic Polycone or generic Polyhedra.
120
121 void CopyStuff( const G4VCSGfaceted& source );
122 void DeleteStuff();
123
124 private:
125
126 G4int fStatistics;
127 G4double fCubVolEpsilon;
128 G4double fAreaAccuracy;
129 // Statistics, error accuracy for volume estimation.
130 };
131
132 #endif
133