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1 //
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25 //
26 // G4GenericPolycone
27 //
28 // Class description:
29 //
30 // Class implementing a GenericPolycone constructed by points with
31 // (r,z)coordinates, allows Z 'go back'
32 //
33 //
34 // G4GenericPolycone( const G4String& name,
35 // G4double phiStart, // initial phi starting angle
36 // G4double phiTotal, // total phi angle
37 // G4int numRZ, // number corners in r,z space
38 // const G4double r[], // r coordinate of these corners
39 // const G4double z[]) // z coordinate of these corners
40 //
41
42 // Authors: T.Nikitina, G.Cosmo - CERN
43 // --------------------------------------------------------------------
44 #ifndef G4GENERICPOLYCONE_HH
45 #define G4GENERICPOLYCONE_HH
46
47 #include "G4GeomTypes.hh"
48
49 #if defined(G4GEOM_USE_USOLIDS)
50 #define G4GEOM_USE_UGENERICPOLYCONE 1
51 #endif
52
53 #if defined(G4GEOM_USE_UGENERICPOLYCONE)
54 #define G4UGenericPolycone G4GenericPolycone
55 #include "G4UGenericPolycone.hh"
56 #else
57
58 #include "G4VCSGfaceted.hh"
59 #include "G4PolyconeSide.hh"
60
61 class G4EnclosingCylinder;
62 class G4ReduciblePolygon;
63 class G4VCSGface;
64
65 class G4GenericPolycone : public G4VCSGfaceted
66 {
67 public:
68
69 G4GenericPolycone( const G4String& name,
70 G4double phiStart, // initial phi starting angle
71 G4double phiTotal, // total phi angle
72 G4int numRZ, // number corners in r,z space
73 const G4double r[], // r coordinate of these corners
74 const G4double z[] ); // z coordinate of these corners
75
76 ~G4GenericPolycone() override;
77
78 EInside Inside( const G4ThreeVector &p ) const override;
79 G4double DistanceToIn( const G4ThreeVector &p,
80 const G4ThreeVector &v ) const override;
81 G4double DistanceToIn( const G4ThreeVector &p ) const override;
82
83 void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;
84 G4bool CalculateExtent(const EAxis pAxis,
85 const G4VoxelLimits& pVoxelLimit,
86 const G4AffineTransform& pTransform,
87 G4double& pmin, G4double& pmax) const override;
88
89 G4double GetCubicVolume() override;
90 G4double GetSurfaceArea() override;
91
92 G4ThreeVector GetPointOnSurface() const override;
93
94 G4GeometryType GetEntityType() const override;
95
96 G4VSolid* Clone() const override;
97
98 std::ostream& StreamInfo(std::ostream& os) const override;
99
100 G4Polyhedron* CreatePolyhedron() const override;
101
102 G4bool Reset();
103
104 // Accessors
105
106 inline G4double GetStartPhi() const;
107 inline G4double GetEndPhi() const;
108 inline G4double GetSinStartPhi() const;
109 inline G4double GetCosStartPhi() const;
110 inline G4double GetSinEndPhi() const;
111 inline G4double GetCosEndPhi() const;
112 inline G4bool IsOpen() const;
113 inline G4int GetNumRZCorner() const;
114 inline G4PolyconeSideRZ GetCorner(G4int index) const;
115
116 G4GenericPolycone(__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 G4GenericPolycone( const G4GenericPolycone& source );
122 G4GenericPolycone& operator=( const G4GenericPolycone& source );
123 // Copy constructor and assignment operator.
124
125 protected:
126
127 // Generic initializer, called by all constructors
128
129 void Create( G4double phiStart, // initial phi starting angle
130 G4double phiTotal, // total phi angle
131 G4ReduciblePolygon* rz ); // r/z coordinate of these corners
132
133 void CopyStuff( const G4GenericPolycone& source );
134
135 // Methods for random point generation
136
137 void SetSurfaceElements() const;
138
139 protected:
140
141 // Here are our parameters
142
143 G4double startPhi; // Starting phi value (0 < phiStart < 2pi)
144 G4double endPhi; // end phi value (0 < endPhi-phiStart < 2pi)
145 G4bool phiIsOpen = false; // true if there is a phi segment
146 G4int numCorner; // number RZ points
147 G4PolyconeSideRZ* corners = nullptr; // corner r,z points
148
149 G4EnclosingCylinder* enclosingCylinder = nullptr; // Our quick test
150
151 struct surface_element { G4double area = 0.; G4int i0 = 0, i1 = 0, i2 = 0; };
152 mutable std::vector<surface_element>* fElements = nullptr;
153 };
154
155 #include "G4GenericPolycone.icc"
156
157 #endif
158
159 #endif
160