| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
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18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration and of QinetiQ Ltd, *
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25 // ********************************************************************
26 //
27 // G4VFacet implementation.
28 //
29 // 31 October 2004, P R Truscott, QinetiQ Ltd, UK - Created.
30 // 12 October 2012, M Gayer, CERN, - Reviewed optimized implementation.
31 // --------------------------------------------------------------------
32
33 #include "G4VFacet.hh"
34 #include "globals.hh"
35 #include "geomdefs.hh"
36 #include "G4GeometryTolerance.hh"
37
38 using namespace std;
39
40 const G4double G4VFacet::dirTolerance = 1.0E-14;
41
42 ///////////////////////////////////////////////////////////////////////////////
43 //
44 G4VFacet::G4VFacet()
45 {
46 kCarTolerance = G4GeometryTolerance::GetInstance()->GetSurfaceTolerance();
47 }
48
49 ///////////////////////////////////////////////////////////////////////////////
50 //
51 G4VFacet::~G4VFacet() = default;
52
53 ///////////////////////////////////////////////////////////////////////////////
54 //
55 G4bool G4VFacet::operator== (const G4VFacet& right) const
56 {
57 G4double tolerance = kCarTolerance*kCarTolerance/4.0;
58
59 if (GetNumberOfVertices() != right.GetNumberOfVertices())
60 return false;
61 else if ((GetCircumcentre()-right.GetCircumcentre()).mag2() > tolerance)
62 return false;
63 else if (std::fabs((right.GetSurfaceNormal()).dot(GetSurfaceNormal())) < 0.9999999999)
64 return false;
65
66 G4bool coincident = true;
67 G4int i = 0;
68 do // Loop checking, 13.08.2015, G.Cosmo
69 {
70 coincident = false;
71 G4int j = 0;
72 do // Loop checking, 13.08.2015, G.Cosmo
73 {
74 coincident = (GetVertex(i)-right.GetVertex(j)).mag2() < tolerance;
75 } while (!coincident && ++j < GetNumberOfVertices());
76 } while (coincident && ++i < GetNumberOfVertices());
77
78 return coincident;
79 }
80
81 ///////////////////////////////////////////////////////////////////////////////
82 //
83 void G4VFacet::ApplyTranslation(const G4ThreeVector& v)
84 {
85 G4int n = GetNumberOfVertices();
86 for (G4int i = 0; i < n; ++i)
87 {
88 SetVertex(i, GetVertex(i) + v);
89 }
90 }
91
92 ///////////////////////////////////////////////////////////////////////////////
93 //
94 std::ostream& G4VFacet::StreamInfo(std::ostream& os) const
95 {
96 os << G4endl;
97 os << "*********************************************************************"
98 << G4endl;
99 os << "FACET TYPE = " << GetEntityType() << G4endl;
100 os << "ABSOLUTE VECTORS = " << G4endl;
101 G4int n = GetNumberOfVertices();
102 for (G4int i = 0; i < n; ++i)
103 os << "P[" << i << "] = " << GetVertex(i) << G4endl;
104 os << "*********************************************************************"
105 << G4endl;
106
107 return os;
108 }
109
110 G4bool G4VFacet::IsInside (const G4ThreeVector& p) const
111 {
112 G4ThreeVector d = p-GetVertex(0);
113 G4double displacement = d.dot(GetSurfaceNormal());
114 return displacement <= 0.0;
115 }
116