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1 | // Created on: 1997-02-21 |
2 | // Created by: Laurent BOURESCHE |
3 | // Copyright (c) 1997-1999 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 _Blend_SurfCurvFuncInv_HeaderFile |
18 | #define _Blend_SurfCurvFuncInv_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <math_FunctionSetWithDerivatives.hxx> |
25 | #include <Standard_Integer.hxx> |
26 | #include <Standard_Boolean.hxx> |
27 | #include <math_Vector.hxx> |
28 | #include <Standard_Real.hxx> |
29 | class math_Matrix; |
30 | class Adaptor2d_HCurve2d; |
31 | |
32 | |
33 | //! Deferred class for a function used to compute a |
34 | //! blending surface between a surface and a curve, using |
35 | //! a guide line. This function is used to find a |
36 | //! solution on a done restriction of the surface. |
37 | //! |
38 | //! The vector <X> used in Value, Values and Derivatives |
39 | //! methods has to be the vector of the parametric |
40 | //! coordinates wguide, wcurv, wrst where wguide is the |
41 | //! parameter on the guide line, wcurv is the parameter on |
42 | //! the curve, wrst is the parameter on the restriction on |
43 | //! the surface. |
44 | class Blend_SurfCurvFuncInv : public math_FunctionSetWithDerivatives |
45 | { |
46 | public: |
47 | |
48 | DEFINE_STANDARD_ALLOC |
49 | |
50 | |
51 | //! Returns 3. |
52 | Standard_EXPORT Standard_Integer NbVariables() const; |
53 | |
54 | //! returns the number of equations of the function. |
55 | Standard_EXPORT virtual Standard_Integer NbEquations() const = 0; |
56 | |
57 | //! computes the values <F> of the Functions for the |
58 | //! variable <X>. |
59 | //! Returns True if the computation was done successfully, |
60 | //! False otherwise. |
61 | Standard_EXPORT virtual Standard_Boolean Value (const math_Vector& X, math_Vector& F) = 0; |
62 | |
63 | //! returns the values <D> of the derivatives for the |
64 | //! variable <X>. |
65 | //! Returns True if the computation was done successfully, |
66 | //! False otherwise. |
67 | Standard_EXPORT virtual Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D) = 0; |
68 | |
69 | //! returns the values <F> of the functions and the derivatives |
70 | //! <D> for the variable <X>. |
71 | //! Returns True if the computation was done successfully, |
72 | //! False otherwise. |
73 | Standard_EXPORT virtual Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D) = 0; |
74 | |
75 | //! Set the Point on which a solution has to be found. |
76 | Standard_EXPORT virtual void Set (const Handle(Adaptor2d_HCurve2d)& Rst) = 0; |
77 | |
78 | //! Returns in the vector Tolerance the parametric tolerance |
79 | //! for each of the 3 variables; |
80 | //! Tol is the tolerance used in 3d space. |
81 | Standard_EXPORT virtual void GetTolerance (math_Vector& Tolerance, const Standard_Real Tol) const = 0; |
82 | |
83 | //! Returns in the vector InfBound the lowest values allowed |
84 | //! for each of the 3 variables. |
85 | //! Returns in the vector SupBound the greatest values allowed |
86 | //! for each of the 3 variables. |
87 | Standard_EXPORT virtual void GetBounds (math_Vector& InfBound, math_Vector& SupBound) const = 0; |
88 | |
89 | //! Returns Standard_True if Sol is a zero of the function. |
90 | //! Tol is the tolerance used in 3d space. |
91 | Standard_EXPORT virtual Standard_Boolean IsSolution (const math_Vector& Sol, const Standard_Real Tol) = 0; |
92 | |
93 | |
94 | |
95 | |
96 | protected: |
97 | |
98 | |
99 | |
100 | |
101 | |
102 | private: |
103 | |
104 | |
105 | |
106 | |
107 | |
108 | }; |
109 | |
110 | |
111 | |
112 | |
113 | |
114 | |
115 | |
116 | #endif // _Blend_SurfCurvFuncInv_HeaderFile |