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76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
// Created on: 2013-12-20
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// Created by: Denis BOGOLEPOV
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// Copyright (c) 2013-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _BVH_PrimitiveSet_Header
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#define _BVH_PrimitiveSet_Header
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#include <BVH_Object.hxx>
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#include <BVH_Builder.hxx>
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//! Set of abstract geometric primitives organized with bounding
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//! volume hierarchy (BVH). Unlike an object set, this collection
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//! is designed for storing structural elements of a single object
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//! (such as triangles in the object triangulation). Because there
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//! may be a large number of such elements, the implementations of
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//! this interface should be sufficiently optimized.
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//! \tparam T Numeric data type
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//! \tparam N Vector dimension
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template<class T, int N>
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class BVH_PrimitiveSet : public BVH_Object<T, N>, public BVH_Set<T, N>
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{
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protected:
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using BVH_Set<T, N>::Box;
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public:
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//! Creates set of abstract primitives.
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BVH_PrimitiveSet();
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//! Releases resources of set of abstract primitives.
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virtual ~BVH_PrimitiveSet();
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public:
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//! Returns AABB of primitive set.
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virtual BVH_Box<T, N> Box() const;
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//! Returns BVH tree (and builds it if necessary).
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virtual const NCollection_Handle<BVH_Tree<T, N> >& BVH();
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//! Returns the method (builder) used to construct BVH.
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virtual const NCollection_Handle<BVH_Builder<T, N> >& Builder() const;
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//! Sets the method (builder) used to construct BVH.
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virtual void SetBuilder (NCollection_Handle<BVH_Builder<T, N> >& theBuilder);
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protected:
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//! Updates BVH of primitive set.
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virtual void Update();
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protected:
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NCollection_Handle<BVH_Tree<T, N> > myBVH; //!< Constructed bottom-level BVH
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NCollection_Handle<BVH_Builder<T, N> > myBuilder; //!< Builder for bottom-level BVH
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mutable BVH_Box<T, N> myBox; //!< Cached bounding box of geometric primitives
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};
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#include <BVH_PrimitiveSet.lxx>
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#endif // _BVH_PrimitiveSet_Header
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