FreeFOAM The Cross-Platform CFD Toolkit
arcEdge.H
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23 
24 Class
25  Foam::arcEdge
26 
27 Description
28  Defines the arcEdge of a circle in terms of 3 points on its circumference
29 
30 SourceFiles
31  arcEdge.C
32 
33 \*---------------------------------------------------------------------------*/
34 
35 #ifndef arcEdge_H
36 #define arcEdge_H
37 
38 #include "curvedEdge.H"
40 
41 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
42 
43 namespace Foam
44 {
45 
46 /*---------------------------------------------------------------------------*\
47  Class arcEdge Declaration
48 \*---------------------------------------------------------------------------*/
49 
50 class arcEdge
51 :
52  public curvedEdge
53 {
54  // Private data
55 
56  point p1_, p2_, p3_;
57  cylindricalCS cs_;
58  scalar angle_;
59  scalar radius_;
60 
61  // Private Member Functions
62 
63  //- Calculate the coordinate system, angle and radius
64  cylindricalCS calcAngle();
65 
66  //- Disallow default bitwise copy construct
67  arcEdge(const arcEdge&);
68 
69  //- Disallow default bitwise assignment
70  void operator=(const arcEdge&);
71 
72 public:
73 
74  //- Runtime type information
75  TypeName("arc");
76 
77 
78  // Constructors
79 
80  //- Construct from components
81  arcEdge
82  (
83  const pointField& points,
84  const label start, const label end,
85  const point& pMid
86  );
87 
88  //- Construct from Istream setting pointsList
89  arcEdge(const pointField& points, Istream&);
90 
91 
92  // Destructor
93 
94  virtual ~arcEdge(){}
95 
96 
97  // Member Functions
98 
99  //- Return the point position corresponding to the curve parameter
100  // 0 <= lambda <= 1
101  point position(const scalar) const;
102 
103  //- Return the length of the curve
104  scalar length() const;
105 };
106 
107 
108 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
109 
110 } // End namespace Foam
111 
112 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
113 
114 #endif
115 
116 // ************************ vim: set sw=4 sts=4 et: ************************ //