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1 //
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25 //
26 // G4GeometryTolerance class implementation
27 //
28 // Author: G.Cosmo (CERN), 30 October 2006
29 // --------------------------------------------------------------------
30
31 #include "G4GeometryTolerance.hh"
32 #include "G4AutoDelete.hh"
33 #include "G4SystemOfUnits.hh"
34 #include "globals.hh"
35
36 // ***************************************************************************
37 // Static class instance
38 // ***************************************************************************
39 //
40 G4ThreadLocal G4GeometryTolerance* G4GeometryTolerance::fpInstance = nullptr;
41
42 // ***************************************************************************
43 // Constructor.
44 // ***************************************************************************
45 //
46 G4GeometryTolerance::G4GeometryTolerance()
47 {
48 fCarTolerance = 1E-9 * mm;
49 fAngTolerance = 1E-9 * rad;
50 fRadTolerance = 1E-9 * mm;
51 }
52
53 // ***************************************************************************
54 // Returns the instance of the singleton.
55 // Creates it in case it's called for the first time.
56 // ***************************************************************************
57 //
58 G4GeometryTolerance* G4GeometryTolerance::GetInstance()
59 {
60 if(fpInstance == nullptr)
61 {
62 fpInstance = new G4GeometryTolerance;
63 G4AutoDelete::Register(fpInstance);
64 }
65 return fpInstance;
66 }
67
68 // ***************************************************************************
69 // Accessors.
70 // ***************************************************************************
71 //
72 G4double G4GeometryTolerance::GetSurfaceTolerance() const
73 {
74 return fCarTolerance;
75 }
76
77 G4double G4GeometryTolerance::GetAngularTolerance() const
78 {
79 return fAngTolerance;
80 }
81
82 G4double G4GeometryTolerance::GetRadialTolerance() const
83 {
84 return fRadTolerance;
85 }
86
87 // ***************************************************************************
88 // Sets the tolerance to a value computed on the basis of the world volume
89 // extent provided as argument. The method can be called only once.
90 // ***************************************************************************
91 //
92 void G4GeometryTolerance::SetSurfaceTolerance(G4double worldExtent)
93 {
94 if(!fInitialised)
95 {
96 fCarTolerance = fRadTolerance = worldExtent * 1E-11;
97 fInitialised = true;
98 }
99 else
100 {
101 G4cout << "WARNING - G4GeometryTolerance::SetSurfaceTolerance()" << G4endl
102 << " Tolerance can only be set once. Currently set to: "
103 << fCarTolerance / mm << " mm." << G4endl;
104 G4Exception("G4GeometryTolerance::SetSurfaceTolerance()", "NotApplicable",
105 JustWarning, "The tolerance has been already set!");
106 }
107 }
108