1 // Created on: 1998-02-18
2 // Created by: Jeanine PANCIATICI
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 _Adaptor3d_InterFunc_HeaderFile
18 #define _Adaptor3d_InterFunc_HeaderFile
20 #include <math_FunctionWithDerivative.hxx>
22 class Adaptor2d_Curve2d;
24 //! Used to find the points U(t) = U0 or V(t) = V0 in
25 //! order to determine the Cn discontinuities of an
26 //! Adpator_CurveOnSurface relatively to the
27 //! discontinuities of the surface. Used to
28 //! find the roots of the functions
29 class Adaptor3d_InterFunc : public math_FunctionWithDerivative
36 //! build the function U(t)=FixVal if Fix =1 or
37 //! V(t)=FixVal if Fix=2
38 Standard_EXPORT Adaptor3d_InterFunc(const Handle(Adaptor2d_Curve2d)& C, const Standard_Real FixVal, const Standard_Integer Fix);
40 //! computes the value <F>of the function for the variable <X>.
41 //! Returns True if the calculation were successfully done,
43 Standard_EXPORT Standard_Boolean Value (const Standard_Real X, Standard_Real& F);
45 //! computes the derivative <D> of the function
46 //! for the variable <X>.
47 //! Returns True if the calculation were successfully done,
49 Standard_EXPORT Standard_Boolean Derivative (const Standard_Real X, Standard_Real& D);
51 //! computes the value <F> and the derivative <D> of the
52 //! function for the variable <X>.
53 //! Returns True if the calculation were successfully done,
55 Standard_EXPORT Standard_Boolean Values (const Standard_Real X, Standard_Real& F, Standard_Real& D);
59 Handle(Adaptor2d_Curve2d) myCurve2d;
60 Standard_Real myFixVal;
61 Standard_Integer myFix;
65 #endif // _Adaptor3d_InterFunc_HeaderFile