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1 | // Created on: 2013-12-20 |
| 2 | // Created by: Denis BOGOLEPOV |
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3 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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4 | // |
| 5 | // This file is part of Open CASCADE Technology software library. |
| 6 | // |
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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 |
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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 _BVH_PrimitiveSet_Header |
| 17 | #define _BVH_PrimitiveSet_Header |
| 18 | |
| 19 | #include <BVH_Object.hxx> |
| 20 | #include <BVH_Builder.hxx> |
| 21 | |
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22 | //! Set of abstract geometric primitives organized with bounding |
| 23 | //! volume hierarchy (BVH). Unlike an object set, this collection |
| 24 | //! is designed for storing structural elements of a single object |
| 25 | //! (such as triangles in the object triangulation). Because there |
| 26 | //! may be a large number of such elements, the implementations of |
| 27 | //! this interface should be sufficiently optimized. |
| 28 | //! \tparam T Numeric data type |
| 29 | //! \tparam N Vector dimension |
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30 | template<class T, int N> |
| 31 | class BVH_PrimitiveSet : public BVH_Object<T, N>, public BVH_Set<T, N> |
| 32 | { |
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33 | protected: |
| 34 | |
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35 | using BVH_Set<T, N>::Box; |
| 36 | |
| 37 | public: |
| 38 | |
| 39 | //! Creates set of abstract primitives. |
| 40 | BVH_PrimitiveSet(); |
| 41 | |
| 42 | //! Releases resources of set of abstract primitives. |
| 43 | virtual ~BVH_PrimitiveSet(); |
| 44 | |
| 45 | public: |
| 46 | |
| 47 | //! Returns AABB of primitive set. |
| 48 | virtual BVH_Box<T, N> Box() const; |
| 49 | |
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50 | //! Returns BVH tree (and builds it if necessary). |
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51 | virtual const NCollection_Handle<BVH_Tree<T, N> >& BVH(); |
| 52 | |
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53 | //! Returns the method (builder) used to construct BVH. |
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54 | virtual const NCollection_Handle<BVH_Builder<T, N> >& Builder() const; |
| 55 | |
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56 | //! Sets the method (builder) used to construct BVH. |
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57 | virtual void SetBuilder (NCollection_Handle<BVH_Builder<T, N> >& theBuilder); |
| 58 | |
| 59 | protected: |
| 60 | |
| 61 | //! Updates BVH of primitive set. |
| 62 | virtual void Update(); |
| 63 | |
| 64 | protected: |
| 65 | |
| 66 | NCollection_Handle<BVH_Tree<T, N> > myBVH; //!< Constructed bottom-level BVH |
| 67 | NCollection_Handle<BVH_Builder<T, N> > myBuilder; //!< Builder for bottom-level BVH |
| 68 | |
| 69 | mutable BVH_Box<T, N> myBox; //!< Cached bounding box of geometric primitives |
| 70 | |
| 71 | }; |
| 72 | |
| 73 | #include <BVH_PrimitiveSet.lxx> |
| 74 | |
| 75 | #endif // _BVH_PrimitiveSet_Header |
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