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1 | // Created on: 1992-02-20 |
2 | // Created by: Remy GILET |
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 _Geom2dGcc_FunctionTanCuCu_HeaderFile |
18 | #define _Geom2dGcc_FunctionTanCuCu_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Geom2dAdaptor_Curve.hxx> |
25 | #include <gp_Circ2d.hxx> |
26 | #include <Geom2dGcc_Type3.hxx> |
27 | #include <math_FunctionSetWithDerivatives.hxx> |
28 | #include <math_Vector.hxx> |
29 | #include <Standard_Integer.hxx> |
30 | #include <Standard_Boolean.hxx> |
31 | class Standard_ConstructionError; |
32 | class Geom2dAdaptor_Curve; |
33 | class gp_Circ2d; |
34 | class gp_Pnt2d; |
35 | class gp_Vec2d; |
36 | class math_Matrix; |
37 | |
38 | |
39 | //! This abstract class describes a Function of 1 Variable |
40 | //! used to find a line tangent to two curves. |
41 | class Geom2dGcc_FunctionTanCuCu : public math_FunctionSetWithDerivatives |
42 | { |
43 | public: |
44 | |
45 | DEFINE_STANDARD_ALLOC |
46 | |
47 | |
48 | Standard_EXPORT Geom2dGcc_FunctionTanCuCu(const Geom2dAdaptor_Curve& Curv1, const Geom2dAdaptor_Curve& Curv2); |
49 | |
50 | Standard_EXPORT Geom2dGcc_FunctionTanCuCu(const gp_Circ2d& Circ1, const Geom2dAdaptor_Curve& Curv2); |
51 | |
52 | Standard_EXPORT void InitDerivative (const math_Vector& X, gp_Pnt2d& Point1, gp_Pnt2d& Point2, gp_Vec2d& Tan1, gp_Vec2d& Tan2, gp_Vec2d& D21, gp_Vec2d& D22); |
53 | |
54 | //! returns the number of variables of the function. |
55 | Standard_EXPORT Standard_Integer NbVariables() const; |
56 | |
57 | //! returns the number of equations of the function. |
58 | Standard_EXPORT Standard_Integer NbEquations() const; |
59 | |
60 | //! Computes the value of the function F for the variable X. |
61 | //! It returns True if the computation is successfully done, |
62 | //! False otherwise. |
63 | Standard_EXPORT Standard_Boolean Value (const math_Vector& X, math_Vector& F); |
64 | |
65 | //! Computes the derivative of the function F for the variable X. |
66 | //! It returns True if the computation is successfully done, |
67 | //! False otherwise. |
68 | Standard_EXPORT Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& Deriv); |
69 | |
70 | //! Computes the value and the derivative of the function F |
71 | //! for the variable X. |
72 | //! It returns True if the computation is successfully done, |
73 | //! False otherwise. |
74 | Standard_EXPORT Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& Deriv); |
75 | |
76 | |
77 | |
78 | |
79 | protected: |
80 | |
81 | |
82 | |
83 | |
84 | |
85 | private: |
86 | |
87 | |
88 | |
89 | Geom2dAdaptor_Curve TheCurve1; |
90 | Geom2dAdaptor_Curve TheCurve2; |
91 | gp_Circ2d TheCirc1; |
92 | Geom2dGcc_Type3 TheType; |
93 | |
94 | |
95 | }; |
96 | |
97 | |
98 | |
99 | |
100 | |
101 | |
102 | |
103 | #endif // _Geom2dGcc_FunctionTanCuCu_HeaderFile |