1 // Created on: 1992-05-15
2 // Created by: Jacques GOUSSARD
3 // Copyright (c) 1992-1999 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 _IntSurf_InteriorPoint_HeaderFile
18 #define _IntSurf_InteriorPoint_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
25 #include <Standard_Real.hxx>
27 #include <gp_Vec2d.hxx>
33 //! Definition of a point solution of the
34 //! intersection between an implicit an a
35 //! parametrised surface. These points are
36 //! passing points on the intersection lines,
37 //! or starting points for the closed lines
38 //! on the parametrised surface.
39 class IntSurf_InteriorPoint
46 Standard_EXPORT IntSurf_InteriorPoint();
48 Standard_EXPORT IntSurf_InteriorPoint(const gp_Pnt& P, const Standard_Real U, const Standard_Real V, const gp_Vec& Direc, const gp_Vec2d& Direc2d);
50 Standard_EXPORT void SetValue (const gp_Pnt& P, const Standard_Real U, const Standard_Real V, const gp_Vec& Direc, const gp_Vec2d& Direc2d);
52 //! Returns the 3d coordinates of the interior point.
53 const gp_Pnt& Value() const;
55 //! Returns the parameters of the interior point on the
56 //! parametric surface.
57 void Parameters (Standard_Real& U, Standard_Real& V) const;
59 //! Returns the first parameter of the interior point on the
60 //! parametric surface.
61 Standard_Real UParameter() const;
63 //! Returns the second parameter of the interior point on the
64 //! parametric surface.
65 Standard_Real VParameter() const;
67 //! Returns the tangent at the intersection in 3d space
68 //! associated to the interior point.
69 const gp_Vec& Direction() const;
71 //! Returns the tangent at the intersection in the parametric
72 //! space of the parametric surface.
73 const gp_Vec2d& Direction2d() const;
98 #include <IntSurf_InteriorPoint.lxx>
104 #endif // _IntSurf_InteriorPoint_HeaderFile