1 // Created on: 1998-06-02
2 // Created by: Philippe NOUAILLE
3 // Copyright (c) 1998-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BlendFunc_ChAsym_HeaderFile
18 #define _BlendFunc_ChAsym_HeaderFile
20 #include <Adaptor3d_Surface.hxx>
23 #include <math_Vector.hxx>
24 #include <math_Matrix.hxx>
25 #include <gp_Vec2d.hxx>
26 #include <Blend_Function.hxx>
27 #include <TColStd_Array1OfReal.hxx>
28 #include <GeomAbs_Shape.hxx>
29 #include <TColStd_Array1OfInteger.hxx>
30 #include <TColgp_Array1OfPnt.hxx>
31 #include <TColgp_Array1OfPnt2d.hxx>
32 #include <TColgp_Array1OfVec.hxx>
33 #include <TColgp_Array1OfVec2d.hxx>
39 class BlendFunc_ChAsym : public Blend_Function
46 Standard_EXPORT BlendFunc_ChAsym(const Handle(Adaptor3d_Surface)& S1, const Handle(Adaptor3d_Surface)& S2, const Handle(Adaptor3d_Curve)& C);
48 //! returns the number of equations of the function.
49 Standard_EXPORT Standard_Integer NbEquations() const Standard_OVERRIDE;
51 Standard_EXPORT void Set (const Standard_Real Param) Standard_OVERRIDE;
53 Standard_EXPORT void Set (const Standard_Real First, const Standard_Real Last) Standard_OVERRIDE;
55 Standard_EXPORT void GetTolerance (math_Vector& Tolerance, const Standard_Real Tol) const Standard_OVERRIDE;
57 Standard_EXPORT void GetBounds (math_Vector& InfBound, math_Vector& SupBound) const Standard_OVERRIDE;
59 Standard_EXPORT Standard_Boolean IsSolution (const math_Vector& Sol, const Standard_Real Tol) Standard_OVERRIDE;
61 //! Returns the minimal Distance between two
62 //! extremities of calculated sections.
63 Standard_EXPORT Standard_Real GetMinimalDistance() const Standard_OVERRIDE;
65 //! computes the values <F> of the derivatives for the
66 //! variable <X> between DegF and DegL.
67 //! Returns True if the computation was done successfully,
69 Standard_EXPORT Standard_Boolean ComputeValues (const math_Vector& X, const Standard_Integer DegF, const Standard_Integer DegL);
71 //! computes the values <F> of the Functions for the
73 //! Returns True if the computation was done successfully,
75 Standard_EXPORT Standard_Boolean Value (const math_Vector& X, math_Vector& F) Standard_OVERRIDE;
77 //! returns the values <D> of the derivatives for the
79 //! Returns True if the computation was done successfully,
81 Standard_EXPORT Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D) Standard_OVERRIDE;
83 //! returns the values <F> of the functions and the derivatives
84 //! <D> for the variable <X>.
85 //! Returns True if the computation was done successfully,
87 Standard_EXPORT Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D) Standard_OVERRIDE;
89 Standard_EXPORT const gp_Pnt& PointOnS1() const Standard_OVERRIDE;
91 Standard_EXPORT const gp_Pnt& PointOnS2() const Standard_OVERRIDE;
93 Standard_EXPORT Standard_Boolean IsTangencyPoint() const Standard_OVERRIDE;
95 Standard_EXPORT const gp_Vec& TangentOnS1() const Standard_OVERRIDE;
97 Standard_EXPORT const gp_Vec2d& Tangent2dOnS1() const Standard_OVERRIDE;
99 Standard_EXPORT const gp_Vec& TangentOnS2() const Standard_OVERRIDE;
101 Standard_EXPORT const gp_Vec2d& Tangent2dOnS2() const Standard_OVERRIDE;
103 Standard_EXPORT virtual Standard_Boolean TwistOnS1() const Standard_OVERRIDE;
105 Standard_EXPORT virtual Standard_Boolean TwistOnS2() const Standard_OVERRIDE;
107 //! Returns the tangent vector at the section,
108 //! at the beginning and the end of the section, and
109 //! returns the normal (of the surfaces) at
111 Standard_EXPORT void Tangent (const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, gp_Vec& TgFirst, gp_Vec& TgLast, gp_Vec& NormFirst, gp_Vec& NormLast) const Standard_OVERRIDE;
113 //! Utile pour une visu rapide et approximative de la surface.
114 Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Lin& C);
116 //! Returns if the section is rationnal
117 Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
119 //! Returns the length of the maximum section
120 Standard_EXPORT Standard_Real GetSectionSize() const Standard_OVERRIDE;
122 //! Compute the minimal value of weight for each poles
124 Standard_EXPORT void GetMinimalWeight (TColStd_Array1OfReal& Weigths) const Standard_OVERRIDE;
126 //! Returns the number of intervals for continuity
127 //! <S>. May be one if Continuity(me) >= <S>
128 Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
130 //! Stores in <T> the parameters bounding the intervals
131 //! of continuity <S>.
133 //! The array must provide enough room to accommodate
134 //! for the parameters. i.e. T.Length() > NbIntervals()
135 Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
137 Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
139 //! Returns the tolerance to reach in approximation
141 //! BoundTol error at the Boundary
142 //! AngleTol tangent error at the Boundary
143 //! SurfTol error inside the surface.
144 Standard_EXPORT void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, math_Vector& Tol3d, math_Vector& Tol1D) const Standard_OVERRIDE;
146 Standard_EXPORT void Knots (TColStd_Array1OfReal& TKnots) Standard_OVERRIDE;
148 Standard_EXPORT void Mults (TColStd_Array1OfInteger& TMults) Standard_OVERRIDE;
150 Standard_EXPORT void Section (const Blend_Point& P, TColgp_Array1OfPnt& Poles, TColgp_Array1OfPnt2d& Poles2d, TColStd_Array1OfReal& Weigths) Standard_OVERRIDE;
152 //! Used for the first and last section
153 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;
155 //! Used for the first and last section
156 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;
158 Standard_EXPORT void Resolution (const Standard_Integer IC2d, const Standard_Real Tol, Standard_Real& TolU, Standard_Real& TolV) const Standard_OVERRIDE;
160 //! Sets the distances and the angle.
161 Standard_EXPORT void Set (const Standard_Real Dist1, const Standard_Real Angle, const Standard_Integer Choix);
176 Handle(Adaptor3d_Surface) surf1;
177 Handle(Adaptor3d_Surface) surf2;
178 Handle(Adaptor3d_Curve) curv;
179 Handle(Adaptor3d_Curve) tcurv;
190 Standard_Boolean istangent;
195 Standard_Integer choix;
196 Standard_Real distmin;
207 #endif // _BlendFunc_ChAsym_HeaderFile