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1 | // Created on: 2014-10-15 |
2 | // Created by: Denis Bogolepov |
3 | // Copyright (c) 2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #ifndef OpenGl_Disk_Header |
17 | #define OpenGl_Disk_Header |
18 | |
19 | #include <OpenGl_Quadric.hxx> |
20 | |
21 | //! Tool class for generating disk (circle) tessellation. |
22 | class OpenGl_Disk : public OpenGl_Quadric |
23 | { |
24 | public: |
25 | |
26 | //! Create uninitialized disk (circle) primitive. |
27 | Standard_EXPORT OpenGl_Disk(); |
28 | |
29 | //! Initialize disk (circle) primitive. |
30 | Standard_EXPORT Standard_Boolean Init (const Standard_ShortReal theInnerRadius, |
31 | const Standard_ShortReal theOuterRadius, |
32 | const Standard_Integer theNbSlices = 10, |
33 | const Standard_Integer theNbStacks = 10); |
34 | |
35 | protected: |
36 | |
37 | //! Returns surface point for the given parameters. |
38 | Standard_EXPORT virtual OpenGl_Vec3 evalVertex (const Standard_ShortReal theU, |
39 | const Standard_ShortReal theV) const Standard_OVERRIDE; |
40 | |
41 | //! Returns surface normal for the given parameters. |
42 | Standard_EXPORT virtual OpenGl_Vec3 evalNormal (const Standard_ShortReal theU, |
43 | const Standard_ShortReal theV) const Standard_OVERRIDE; |
44 | |
45 | private: |
46 | |
47 | Standard_ShortReal myInnerRadius; //!< Inner radius of the disk |
48 | Standard_ShortReal myOuterRadius; //!< Outer radius of the disk |
49 | |
50 | }; |
51 | |
52 | #endif // OpenGl_Disk_Header |