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1 | // Created on: 1992-03-26 |
2 | // Created by: Laurent BUCHARD |
3 | // Copyright (c) 1992-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _IntCurve_IConicTool_HeaderFile |
18 | #define _IntCurve_IConicTool_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Standard_Real.hxx> |
25 | #include <gp_Ax22d.hxx> |
26 | #include <GeomAbs_CurveType.hxx> |
27 | #include <gp_Trsf2d.hxx> |
28 | class gp_Elips2d; |
29 | class gp_Lin2d; |
30 | class gp_Circ2d; |
31 | class gp_Parab2d; |
32 | class gp_Hypr2d; |
33 | class gp_Pnt2d; |
34 | class gp_Vec2d; |
35 | |
36 | |
37 | //! Implementation of the ImpTool from IntImpParGen |
38 | //! for conics of gp. |
39 | class IntCurve_IConicTool |
40 | { |
41 | public: |
42 | |
43 | DEFINE_STANDARD_ALLOC |
44 | |
45 | |
46 | Standard_EXPORT IntCurve_IConicTool(); |
47 | |
48 | Standard_EXPORT IntCurve_IConicTool(const IntCurve_IConicTool& IT); |
49 | |
50 | Standard_EXPORT IntCurve_IConicTool(const gp_Elips2d& E); |
51 | |
52 | Standard_EXPORT IntCurve_IConicTool(const gp_Lin2d& L); |
53 | |
54 | Standard_EXPORT IntCurve_IConicTool(const gp_Circ2d& C); |
55 | |
56 | Standard_EXPORT IntCurve_IConicTool(const gp_Parab2d& P); |
57 | |
58 | Standard_EXPORT IntCurve_IConicTool(const gp_Hypr2d& H); |
59 | |
60 | Standard_EXPORT gp_Pnt2d Value (const Standard_Real X) const; |
61 | |
62 | Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& T) const; |
63 | |
64 | Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& T, gp_Vec2d& N) const; |
65 | |
66 | //! Computes the value of the signed distance between |
67 | //! the point P and the implicit curve. |
68 | Standard_EXPORT Standard_Real Distance (const gp_Pnt2d& P) const; |
69 | |
70 | //! Computes the Gradient of the Signed Distance |
71 | //! between a point and the implicit curve, at the |
72 | //! point P. |
73 | Standard_EXPORT gp_Vec2d GradDistance (const gp_Pnt2d& P) const; |
74 | |
75 | //! Returns the parameter U of the point on the |
76 | //! implicit curve corresponding to the point P. The |
77 | //! correspondance between P and the point P(U) on the |
78 | //! implicit curve must be coherent with the way of |
79 | //! determination of the signed distance. |
80 | Standard_EXPORT Standard_Real FindParameter (const gp_Pnt2d& P) const; |
81 | |
82 | |
83 | |
84 | |
85 | protected: |
86 | |
87 | |
88 | |
89 | |
90 | |
91 | private: |
92 | |
93 | |
94 | |
95 | Standard_Real prm1; |
96 | Standard_Real prm2; |
97 | Standard_Real prm3; |
98 | gp_Ax22d Axis; |
99 | GeomAbs_CurveType type; |
100 | gp_Trsf2d Abs_To_Object; |
101 | |
102 | |
103 | }; |
104 | |
105 | |
106 | |
107 | |
108 | |
109 | |
110 | |
111 | #endif // _IntCurve_IConicTool_HeaderFile |