| 1 | // Created on: 1993-03-10 |
| 2 | // Created by: Philippe DAUTRY |
| 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 _Geom_BoundedSurface_HeaderFile |
| 18 | #define _Geom_BoundedSurface_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_Type.hxx> |
| 22 | |
| 23 | #include <Geom_Surface.hxx> |
| 24 | |
| 25 | |
| 26 | class Geom_BoundedSurface; |
| 27 | DEFINE_STANDARD_HANDLE(Geom_BoundedSurface, Geom_Surface) |
| 28 | |
| 29 | //! The root class for bounded surfaces in 3D space. A |
| 30 | //! bounded surface is defined by a rectangle in its 2D parametric space, i.e. |
| 31 | //! - its u parameter, which ranges between two finite |
| 32 | //! values u0 and u1, referred to as "First u |
| 33 | //! parameter" and "Last u parameter" respectively, and |
| 34 | //! - its v parameter, which ranges between two finite |
| 35 | //! values v0 and v1, referred to as "First v |
| 36 | //! parameter" and the "Last v parameter" respectively. |
| 37 | //! The surface is limited by four curves which are the |
| 38 | //! boundaries of the surface: |
| 39 | //! - its u0 and u1 isoparametric curves in the u parametric direction, and |
| 40 | //! - its v0 and v1 isoparametric curves in the v parametric direction. |
| 41 | //! A bounded surface is finite. |
| 42 | //! The common behavior of all bounded surfaces is |
| 43 | //! described by the Geom_Surface class. |
| 44 | //! The Geom package provides three concrete |
| 45 | //! implementations of bounded surfaces: |
| 46 | //! - Geom_BezierSurface, |
| 47 | //! - Geom_BSplineSurface, and |
| 48 | //! - Geom_RectangularTrimmedSurface. |
| 49 | //! The first two of these implement well known |
| 50 | //! mathematical definitions of complex surfaces, the third |
| 51 | //! trims a surface using four isoparametric curves, i.e. it |
| 52 | //! limits the variation of its parameters to a rectangle in |
| 53 | //! 2D parametric space. |
| 54 | class Geom_BoundedSurface : public Geom_Surface |
| 55 | { |
| 56 | |
| 57 | public: |
| 58 | |
| 59 | |
| 60 | |
| 61 | |
| 62 | |
| 63 | DEFINE_STANDARD_RTTIEXT(Geom_BoundedSurface,Geom_Surface) |
| 64 | |
| 65 | protected: |
| 66 | |
| 67 | |
| 68 | |
| 69 | |
| 70 | private: |
| 71 | |
| 72 | |
| 73 | |
| 74 | |
| 75 | }; |
| 76 | |
| 77 | |
| 78 | |
| 79 | |
| 80 | |
| 81 | |
| 82 | |
| 83 | #endif // _Geom_BoundedSurface_HeaderFile |