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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | // Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#ifndef WM5AXISALIGNEDBOX2_H
#define WM5AXISALIGNEDBOX2_H
#include "Wm5MathematicsLIB.h"
#include "Wm5Vector2.h"
namespace Wm5
{
template <typename Real>
class AxisAlignedBox2
{
public:
// Construction and destruction.
AxisAlignedBox2 (); // uninitialized
~AxisAlignedBox2 ();
// The caller must ensure that xmin <= xmax and ymin <= ymax.
AxisAlignedBox2 (Real xmin, Real xmax, Real ymin, Real ymax);
// Compute the center of the box and the extents (half-lengths)
// of the box edges.
void GetCenterExtents (Vector2<Real>& center, Real extent[2]);
// Overlap testing is in the strict sense. If the two boxes are just
// touching along a common edge, the boxes are reported as overlapping.
bool HasXOverlap (const AxisAlignedBox2& box) const;
bool HasYOverlap (const AxisAlignedBox2& box) const;
bool TestIntersection (const AxisAlignedBox2& box) const;
// The return value is 'true' if there is overlap. In this case the
// intersection is stored in 'intersection'. If the return value is
// 'false', there is no overlap. In this case 'intersection' is
// undefined.
bool FindIntersection (const AxisAlignedBox2& box,
AxisAlignedBox2& intersection) const;
Real Min[2], Max[2];
};
#include "Wm5AxisAlignedBox2.inl"
typedef AxisAlignedBox2<float> AxisAlignedBox2f;
typedef AxisAlignedBox2<double> AxisAlignedBox2d;
}
#endif
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