0024473: TKMath, BVH - introduce template-based package for Bounding volume hierarchy...

[occt.git] / src / BVH / BVH_Box.hxx

diff --git a/src/BVH/BVH_Box.hxx b/src/BVH/BVH_Box.hxx
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+// Created on: 2013-12-20
+// Created by: Denis BOGOLEPOV
+// Copyright (c) 2013 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and / or modify it
+// under the terms of the GNU Lesser General Public version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _BVH_Box_Header
+#define _BVH_Box_Header
+
+#include <BVH_Types.hxx>
+
+//! Axis aligned bounding box (AABB).
+template<class T, int N>
+class BVH_Box
+{
+public:
+
+  typedef typename BVHTools::VectorType<T, N>::Type BVH_VecNt;
+
+public:
+
+  //! Creates uninitialized bounding box.
+  BVH_Box() : myInitialized (Standard_False) {}
+
+  //! Creates bounding box of given point.
+  BVH_Box (const BVH_VecNt& thePoint)
+  : myMinPoint    (thePoint),
+    myMaxPoint    (thePoint),
+    myInitialized (Standard_True) {}
+
+  //! Creates copy of another bounding box.
+  BVH_Box (const BVH_Box& theBox)
+  : myMinPoint    (theBox.myMinPoint),
+    myMaxPoint    (theBox.myMaxPoint),
+    myInitialized (theBox.myInitialized) {}
+
+  //! Creates bounding box from corner points.
+  BVH_Box (const BVH_VecNt& theMinPoint,
+           const BVH_VecNt& theMaxPoint)
+  : myMinPoint    (theMinPoint),
+    myMaxPoint    (theMaxPoint),
+    myInitialized (Standard_True) {}
+
+public:
+
+  //! Clears bounding box.
+  void Clear();
+
+  //! Is bounding box valid?
+  Standard_Boolean IsValid() const;
+
+  //! Appends new point to the bounding box.
+  void Add (const BVH_VecNt& thePoint);
+
+  //! Combines bounding box with another one.
+  void Combine (const BVH_Box& theVolume);
+
+  //! Returns minimum point of bounding box.
+  const BVH_VecNt& CornerMin() const;
+
+  //! Returns maximum point of bounding box.
+  const BVH_VecNt& CornerMax() const;
+
+  //! Returns minimum point of bounding box.
+  BVH_VecNt& CornerMin();
+
+  //! Returns maximum point of bounding box.
+  BVH_VecNt& CornerMax();
+
+  //! Returns surface area of bounding box.
+  T Area() const;
+
+  //! Returns diagonal of bounding box.
+  BVH_VecNt Size() const;
+
+  //! Returns center of bounding box.
+  BVH_VecNt Center() const;
+
+protected:
+
+  BVH_VecNt        myMinPoint;    //!< Minimum point of bounding box
+  BVH_VecNt        myMaxPoint;    //!< Maximum point of bounding box
+  Standard_Boolean myInitialized; //!< Is bounding box valid?
+
+};
+
+#include <BVH_Box.lxx>
+
+#endif // _BVH_Box_Header