| Geant4 Cross Reference |
1 //
2 // ********************************************************************
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4 // * *
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19 // * technical work of the GEANT4 collaboration. *
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24 // ********************************************************************
25 //
26 // G4Box
27 //
28 // Class description:
29 //
30 // A Box is a cuboid of given half lengths dx,dy,dz. The Box is
31 // centred on the origin with sides parallel to the x/y/z axes.
32
33 // 30.06.95 P.Kent: Converted from source code developed end 94
34 // 27.03.96 J.Allison: Added virtual functions DescribeYourselfTo() and
35 // SendWireframeTo(G4VGraphicsModel&)
36 // 27.03.98 J.Apostolakis: Inherit from G4CSGSolid (not G4VSolid)
37 // --------------------------------------------------------------------
38 #ifndef G4BOX_HH
39 #define G4BOX_HH
40
41 #include "G4GeomTypes.hh"
42
43 #if defined(G4GEOM_USE_USOLIDS)
44 #define G4GEOM_USE_UBOX 1
45 #endif
46
47 #if defined(G4GEOM_USE_UBOX)
48 #define G4UBox G4Box
49 #include "G4UBox.hh"
50 #else
51
52 #include "G4CSGSolid.hh"
53 #include "G4Polyhedron.hh"
54
55 class G4Box : public G4CSGSolid
56 {
57 public:
58
59 G4Box(const G4String& pName, G4double pX, G4double pY, G4double pZ);
60 // Construct a box with name, and half lengths pX,pY,pZ
61
62 ~G4Box() override;
63
64 void ComputeDimensions(G4VPVParameterisation* p,
65 const G4int n,
66 const G4VPhysicalVolume* pRep) override;
67
68 void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;
69
70 G4bool CalculateExtent(const EAxis pAxis,
71 const G4VoxelLimits& pVoxelLimit,
72 const G4AffineTransform& pTransform,
73 G4double& pMin, G4double& pMax) const override;
74
75 // Accessors and modifiers
76
77 inline G4double GetXHalfLength() const;
78 inline G4double GetYHalfLength() const;
79 inline G4double GetZHalfLength() const;
80
81 void SetXHalfLength(G4double dx) ;
82 void SetYHalfLength(G4double dy) ;
83 void SetZHalfLength(G4double dz) ;
84
85 // Methods for solid
86
87 inline G4double GetCubicVolume() override;
88 inline G4double GetSurfaceArea() override;
89
90 EInside Inside(const G4ThreeVector& p) const override;
91 G4ThreeVector SurfaceNormal( const G4ThreeVector& p) const override;
92 G4double DistanceToIn(const G4ThreeVector& p,
93 const G4ThreeVector& v) const override;
94 G4double DistanceToIn(const G4ThreeVector& p) const override;
95 G4double DistanceToOut(const G4ThreeVector& p, const G4ThreeVector& v,
96 const G4bool calcNorm = false,
97 G4bool* validNorm = nullptr,
98 G4ThreeVector* n = nullptr) const override;
99 G4double DistanceToOut(const G4ThreeVector& p) const override;
100
101 G4GeometryType GetEntityType() const override;
102 G4ThreeVector GetPointOnSurface() const override;
103
104 G4bool IsFaceted() const override;
105
106 G4VSolid* Clone() const override;
107
108 std::ostream& StreamInfo(std::ostream& os) const override;
109
110 // Utilities for visualization
111
112 void DescribeYourselfTo (G4VGraphicsScene& scene) const override;
113 G4VisExtent GetExtent () const override;
114 G4Polyhedron* CreatePolyhedron () const override;
115
116 G4Box(__void__&);
117 // Fake default constructor for usage restricted to direct object
118 // persistency for clients requiring preallocation of memory for
119 // persistifiable objects.
120
121 G4Box(const G4Box& rhs);
122 G4Box& operator=(const G4Box& rhs);
123 // Copy constructor and assignment operator.
124
125 private:
126
127 G4ThreeVector ApproxSurfaceNormal( const G4ThreeVector& p) const;
128 // Algorithm for SurfaceNormal() following the original
129 // specification for points not on the surface
130
131 private:
132
133 G4double fDx = 0.0, fDy = 0.0, fDz = 0.0;
134 G4double delta; // Cached half Cartesian tolerance
135 };
136
137 #include "G4Box.icc"
138
139 #endif
140
141 #endif
142