1 // Created on: 2013-12-25
2 // Created by: Varvara POSKONINA
3 // Copyright (c) 1999-2014 OPEN CASCADE SAS
5 // This file is part of Open CASCADE Technology software library.
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.
13 // Alternatively, this file may be used under the terms of Open CASCADE
14 // commercial license or contractual agreement.
16 #ifndef _OpenGl_BVHClipPrimitiveSet_HeaderFile
17 #define _OpenGl_BVHClipPrimitiveSet_HeaderFile
19 #include <BVH_PrimitiveSet.hxx>
20 #include <NCollection_Array1.hxx>
21 #include <NCollection_IndexedMap.hxx>
23 #include <OpenGl_Structure.hxx>
25 //! Defines index map of OpenGL structures.
26 typedef NCollection_IndexedMap<const OpenGl_Structure*> OpenGl_IndexedMapOfStructure;
28 //! Defines array of indexed maps of OpenGL structures.
29 typedef NCollection_Array1<OpenGl_IndexedMapOfStructure> OpenGl_ArrayOfIndexedMapOfStructure;
31 //! Set of OpenGl_Structures for building BVH tree.
32 class OpenGl_BVHClipPrimitiveSet : public BVH_PrimitiveSet<Standard_ShortReal, 4>
36 using BVH_PrimitiveSet<Standard_ShortReal, 4>::Box;
40 //! Creates an empty primitive set for BVH clipping.
41 OpenGl_BVHClipPrimitiveSet();
43 //! Returns total number of structures.
44 virtual Standard_Integer Size() const;
46 //! Returns AABB of the structure.
47 virtual Graphic3d_BndBox4f Box (const Standard_Integer theIdx) const;
49 //! Calculates center of the AABB along given axis.
50 virtual Standard_ShortReal Center (const Standard_Integer theIdx,
51 const Standard_Integer theAxis) const;
53 //! Swaps structures with the given indices.
54 virtual void Swap (const Standard_Integer theIdx1,
55 const Standard_Integer theIdx2);
57 //! Replaces the set by the given array taking into account
58 //! if each structure is cullable or not.
59 void Assign (const OpenGl_ArrayOfIndexedMapOfStructure& theStructs);
61 //! Adds structure to the set.
62 void Add (const OpenGl_Structure* theStruct);
64 //! Removes the given structure from the set.
65 void Remove (const OpenGl_Structure* theStruct);
67 //! Cleans the whole primitive set.
70 //! Returns the structure corresponding to the given ID.
71 const OpenGl_Structure* GetStructureById (Standard_Integer theId);
75 NCollection_IndexedMap<const OpenGl_Structure*> myStructs; //!< Indexed map of structures.
79 #endif // _OpenGl_BVHClipPrimitiveSet_HeaderFile