1 // Created on: 1993-12-24
2 // Created by: Jacques GOUSSARD
3 // Copyright (c) 1993-1999 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 _Law_S_HeaderFile
18 #define _Law_S_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_Type.hxx>
23 #include <Law_BSpFunc.hxx>
24 #include <Standard_Real.hxx>
28 DEFINE_STANDARD_HANDLE(Law_S, Law_BSpFunc)
30 //! Describes an "S" evolution law.
31 class Law_S : public Law_BSpFunc
37 //! Constructs an empty "S" evolution law.
38 Standard_EXPORT Law_S();
41 //! Defines this S evolution law by assigning both:
42 //! - the bounds Pdeb and Pfin of the parameter, and
43 //! - the values Valdeb and Valfin of the function at these
44 //! two parametric bounds.
45 //! The function is assumed to have the first derivatives
46 //! equal to 0 at the two parameter points Pdeb and Pfin.
47 Standard_EXPORT void Set (const Standard_Real Pdeb, const Standard_Real Valdeb, const Standard_Real Pfin, const Standard_Real Valfin);
49 //! Defines this S evolution law by assigning
50 //! - the bounds Pdeb and Pfin of the parameter,
51 //! - the values Valdeb and Valfin of the function at these
52 //! two parametric bounds, and
53 //! - the values Ddeb and Dfin of the first derivative of the
54 //! function at these two parametric bounds.
55 Standard_EXPORT void Set (const Standard_Real Pdeb, const Standard_Real Valdeb, const Standard_Real Ddeb, const Standard_Real Pfin, const Standard_Real Valfin, const Standard_Real Dfin);
60 DEFINE_STANDARD_RTTIEXT(Law_S,Law_BSpFunc)
80 #endif // _Law_S_HeaderFile