42cf5bc1 |
1 | // Created on: 1993-09-13 |
2 | // Created by: Jacques GOUSSARD |
3 | // Copyright (c) 1993-1999 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_CSFunction_HeaderFile |
18 | #define _Blend_CSFunction_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Blend_AppFunction.hxx> |
25 | #include <Standard_Integer.hxx> |
26 | #include <Standard_Boolean.hxx> |
27 | #include <math_Vector.hxx> |
28 | #include <Standard_Real.hxx> |
29 | #include <TColStd_Array1OfReal.hxx> |
30 | #include <TColStd_Array1OfInteger.hxx> |
31 | #include <TColgp_Array1OfPnt.hxx> |
32 | #include <TColgp_Array1OfVec.hxx> |
33 | #include <TColgp_Array1OfPnt2d.hxx> |
34 | #include <TColgp_Array1OfVec2d.hxx> |
35 | class Standard_DomainError; |
36 | class math_Matrix; |
37 | class gp_Pnt; |
38 | class gp_Pnt2d; |
39 | class gp_Vec; |
40 | class gp_Vec2d; |
41 | class Blend_Point; |
42 | |
43 | |
44 | //! Deferred class for a function used to compute a blending |
45 | //! surface between a surface and a curve, using a guide line. |
46 | //! The vector <X> used in Value, Values and Derivatives methods |
47 | //! may be the vector of the parametric coordinates U,V, |
48 | //! W of the extremities of a section on the surface and |
49 | //! the curve. |
50 | class Blend_CSFunction : public Blend_AppFunction |
51 | { |
52 | public: |
53 | |
54 | DEFINE_STANDARD_ALLOC |
55 | |
56 | |
57 | //! Returns 3 (default value). Can be redefined. |
79104795 |
58 | Standard_EXPORT virtual Standard_Integer NbVariables() const Standard_OVERRIDE; |
42cf5bc1 |
59 | |
60 | //! returns the number of equations of the function. |
79104795 |
61 | Standard_EXPORT virtual Standard_Integer NbEquations() const Standard_OVERRIDE = 0; |
42cf5bc1 |
62 | |
63 | //! computes the values <F> of the Functions for the |
64 | //! variable <X>. |
65 | //! Returns True if the computation was done successfully, |
66 | //! False otherwise. |
79104795 |
67 | Standard_EXPORT virtual Standard_Boolean Value (const math_Vector& X, math_Vector& F) Standard_OVERRIDE = 0; |
42cf5bc1 |
68 | |
69 | //! returns the values <D> of the derivatives for the |
70 | //! variable <X>. |
71 | //! Returns True if the computation was done successfully, |
72 | //! False otherwise. |
79104795 |
73 | Standard_EXPORT virtual Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D) Standard_OVERRIDE = 0; |
42cf5bc1 |
74 | |
75 | //! returns the values <F> of the functions and the derivatives |
76 | //! <D> for the variable <X>. |
77 | //! Returns True if the computation was done successfully, |
78 | //! False otherwise. |
79104795 |
79 | Standard_EXPORT virtual Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D) Standard_OVERRIDE = 0; |
42cf5bc1 |
80 | |
81 | //! Sets the value of the parameter along the guide line. |
82 | //! This determines the plane in which the solution has |
83 | //! to be found. |
79104795 |
84 | Standard_EXPORT virtual void Set (const Standard_Real Param) Standard_OVERRIDE = 0; |
42cf5bc1 |
85 | |
86 | //! Sets the bounds of the parametric interval on |
87 | //! the guide line. |
88 | //! This determines the derivatives in these values if the |
89 | //! function is not Cn. |
79104795 |
90 | Standard_EXPORT virtual void Set (const Standard_Real First, const Standard_Real Last) Standard_OVERRIDE = 0; |
42cf5bc1 |
91 | |
92 | //! Returns in the vector Tolerance the parametric tolerance |
93 | //! for each of the 3 variables; |
94 | //! Tol is the tolerance used in 3d space. |
79104795 |
95 | Standard_EXPORT virtual void GetTolerance (math_Vector& Tolerance, const Standard_Real Tol) const Standard_OVERRIDE = 0; |
42cf5bc1 |
96 | |
97 | //! Returns in the vector InfBound the lowest values allowed |
98 | //! for each of the 3 variables. |
99 | //! Returns in the vector SupBound the greatest values allowed |
100 | //! for each of the 3 variables. |
79104795 |
101 | Standard_EXPORT virtual void GetBounds (math_Vector& InfBound, math_Vector& SupBound) const Standard_OVERRIDE = 0; |
42cf5bc1 |
102 | |
103 | //! Returns Standard_True if Sol is a zero of the function. |
104 | //! Tol is the tolerance used in 3d space. |
105 | //! The computation is made at the current value of |
106 | //! the parameter on the guide line. |
79104795 |
107 | Standard_EXPORT virtual Standard_Boolean IsSolution (const math_Vector& Sol, const Standard_Real Tol) Standard_OVERRIDE = 0; |
42cf5bc1 |
108 | |
109 | //! Returns the minimal Distance beetween two |
110 | //! extremitys of calculed sections. |
111 | Standard_EXPORT virtual Standard_Real GetMinimalDistance() const Standard_OVERRIDE; |
112 | |
113 | //! Returns the point on the first support. |
114 | Standard_EXPORT const gp_Pnt& Pnt1() const Standard_OVERRIDE; |
115 | |
116 | //! Returns the point on the seconde support. |
117 | Standard_EXPORT const gp_Pnt& Pnt2() const Standard_OVERRIDE; |
118 | |
119 | //! Returns the point on the surface. |
120 | Standard_EXPORT virtual const gp_Pnt& PointOnS() const = 0; |
121 | |
122 | //! Returns the point on the curve. |
123 | Standard_EXPORT virtual const gp_Pnt& PointOnC() const = 0; |
124 | |
125 | //! Returns U,V coordinates of the point on the surface. |
126 | Standard_EXPORT virtual const gp_Pnt2d& Pnt2d() const = 0; |
127 | |
128 | //! Returns parameter of the point on the curve. |
129 | Standard_EXPORT virtual Standard_Real ParameterOnC() const = 0; |
130 | |
131 | //! Returns True when it is not possible to compute |
132 | //! the tangent vectors at PointOnS and/or PointOnC. |
133 | Standard_EXPORT virtual Standard_Boolean IsTangencyPoint() const = 0; |
134 | |
135 | //! Returns the tangent vector at PointOnS, in 3d space. |
136 | Standard_EXPORT virtual const gp_Vec& TangentOnS() const = 0; |
137 | |
138 | //! Returns the tangent vector at PointOnS, in the |
139 | //! parametric space of the first surface. |
140 | Standard_EXPORT virtual const gp_Vec2d& Tangent2d() const = 0; |
141 | |
142 | //! Returns the tangent vector at PointOnC, in 3d space. |
143 | Standard_EXPORT virtual const gp_Vec& TangentOnC() const = 0; |
144 | |
145 | //! Returns the tangent vector at the section, |
146 | //! at the beginning and the end of the section, and |
147 | //! returns the normal (of the surfaces) at |
148 | //! these points. |
149 | Standard_EXPORT virtual void Tangent (const Standard_Real U, const Standard_Real V, gp_Vec& TgS, gp_Vec& NormS) const = 0; |
150 | |
79104795 |
151 | Standard_EXPORT virtual void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE = 0; |
42cf5bc1 |
152 | |
153 | //! Returns the tolerance to reach in approximation |
154 | //! to respecte |
155 | //! BoundTol error at the Boundary |
156 | //! AngleTol tangent error at the Boundary |
157 | //! SurfTol error inside the surface. |
79104795 |
158 | Standard_EXPORT virtual void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, math_Vector& Tol3d, math_Vector& Tol1D) const Standard_OVERRIDE = 0; |
42cf5bc1 |
159 | |
79104795 |
160 | Standard_EXPORT virtual void Knots (TColStd_Array1OfReal& TKnots) Standard_OVERRIDE = 0; |
42cf5bc1 |
161 | |
79104795 |
162 | Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) Standard_OVERRIDE = 0; |
42cf5bc1 |
163 | |
164 | //! Used for the first and last section |
165 | //! The method returns Standard_True if the derivatives |
166 | //! are computed, otherwise it returns Standard_False. |
79104795 |
167 | Standard_EXPORT virtual Standard_Boolean Section (const Blend_Point& P, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColgp_Array1OfPnt2d& Poles2d, TColgp_Array1OfVec2d& DPoles2d, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths) Standard_OVERRIDE = 0; |
42cf5bc1 |
168 | |
79104795 |
169 | Standard_EXPORT virtual void Section (const Blend_Point& P, TColgp_Array1OfPnt& Poles, TColgp_Array1OfPnt2d& Poles2d, TColStd_Array1OfReal& Weigths) Standard_OVERRIDE = 0; |
42cf5bc1 |
170 | |
171 | //! Used for the first and last section |
172 | //! The method returns Standard_True if the derivatives |
173 | //! are computed, otherwise it returns Standard_False. |
174 | Standard_EXPORT virtual Standard_Boolean Section (const Blend_Point& P, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColgp_Array1OfVec& D2Poles, TColgp_Array1OfPnt2d& Poles2d, TColgp_Array1OfVec2d& DPoles2d, TColgp_Array1OfVec2d& D2Poles2d, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths, TColStd_Array1OfReal& D2Weigths) Standard_OVERRIDE; |
175 | |
176 | |
177 | |
178 | |
179 | protected: |
180 | |
181 | |
182 | |
183 | |
184 | |
185 | private: |
186 | |
187 | |
188 | |
189 | |
190 | |
191 | }; |
192 | |
193 | |
194 | |
195 | |
196 | |
197 | |
198 | |
199 | #endif // _Blend_CSFunction_HeaderFile |