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intersection.H
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23 
24 Class
25  Foam::intersection
26 
27 Description
28  Foam::intersection
29 
30 SourceFiles
31  intersection.C
32 
33 \*---------------------------------------------------------------------------*/
34 
35 #ifndef intersection_H
36 #define intersection_H
37 
38 #include "scalar.H"
39 #include "NamedEnum.H"
40 
41 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
42 
43 namespace Foam
44 {
45 
46 /*---------------------------------------------------------------------------*\
47  Class intersection Declaration
48 \*---------------------------------------------------------------------------*/
49 
50 class intersection
51 {
52  // Static data
53 
54  //- Relative tolerance for point in a plane.
55  // The tolerance is relative to the object size.
56  // Used to determine if a half-ray from a point in plane of triangle
57  // intersects the triangle or not.
58  static scalar planarTol_;
59 
60 public:
61 
62  enum class direction
63  {
64  vector,
66  };
67 
68  enum class algorithm
69  {
70  fullRay, // Intersecting with full ray
71  halfRay, // Intersecting with half ray
72  visible // Intersecting with the visible side
73  };
74 
75  // Static Member Functions
76 
77  //- Direction names
79 
80  //- Projection algorithm names
82 
83  //- Return planar tolerance
84  static scalar planarTol()
85  {
86  return planarTol_;
87  }
88 
89  //- Set the planar tolerance, returning the previous value
90  static scalar setPlanarTol(const scalar t)
91  {
92  if (t < -vSmall)
93  {
95  }
96 
97  scalar oldTol = planarTol_;
98  planarTol_ = t;
99 
100  return oldTol;
101  }
102 };
103 
104 
105 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
106 
107 } // End namespace Foam
108 
109 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
110 
111 #endif
112 
113 // ************************************************************************* //
error FatalError
#define FatalErrorInFunction
Report an error message using Foam::FatalError.
Definition: error.H:306
static const NamedEnum< algorithm, 3 > algorithmNames_
Projection algorithm names.
Definition: intersection.H:80
static scalar setPlanarTol(const scalar t)
Set the planar tolerance, returning the previous value.
Definition: intersection.H:89
Foam::intersection.
Definition: intersection.H:49
static scalar planarTol()
Return planar tolerance.
Definition: intersection.H:83
errorManip< error > abort(error &err)
Definition: errorManip.H:131
static const NamedEnum< direction, 2 > directionNames_
Direction names.
Definition: intersection.H:77
Namespace for OpenFOAM.