intersection.H
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1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
6  \\/ M anipulation |
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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 private:
53 
54  // Static data
55 
56  //- Relative tolerance for point in a plane.
57  // The tolerance is relative to the object size.
58  // Used to determine if a half-ray from a point in plane of triangle
59  // intersects the triangle or not.
60  static scalar planarTol_;
61 
62 public:
63 
64  enum direction
65  {
68  };
69 
70  enum algorithm
71  {
72  FULL_RAY, // Intersecting with full ray
73  HALF_RAY, // Intersecting with half ray
74  VISIBLE // Intersecting with the visible side
75  };
76 
77  // Static Member Functions
78 
79  //- Direction names
81 
82  //- Projection algorithm names
84 
85  //- Return planar tolerance
86  static scalar planarTol()
87  {
88  return planarTol_;
89  }
90 
91  //- Set the planar tolerance, returning the previous value
92  static scalar setPlanarTol(const scalar t)
93  {
94  if (t < -VSMALL)
95  {
97  << abort(FatalError);
98  }
99 
100  scalar oldTol = planarTol_;
101  planarTol_ = t;
102 
103  return oldTol;
104  }
105 };
106 
107 
108 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
109 
110 } // End namespace Foam
111 
112 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
113 
114 #endif
115 
116 // ************************************************************************* //
error FatalError
#define FatalErrorInFunction
Report an error message using Foam::FatalError.
Definition: error.H:319
static const NamedEnum< algorithm, 3 > algorithmNames_
Projection algorithm names.
Definition: intersection.H:82
static scalar setPlanarTol(const scalar t)
Set the planar tolerance, returning the previous value.
Definition: intersection.H:91
Foam::intersection.
Definition: intersection.H:49
static scalar planarTol()
Return planar tolerance.
Definition: intersection.H:85
errorManip< error > abort(error &err)
Definition: errorManip.H:131
static const NamedEnum< direction, 2 > directionNames_
Direction names.
Definition: intersection.H:79
Namespace for OpenFOAM.