49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// Geometric Tools, LLC
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// Copyright (c) 1998-2010
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// Distributed under the Boost Software License, Version 1.0.
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// http://www.boost.org/LICENSE_1_0.txt
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// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
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//
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// File Version: 4.10.0 (2009/11/18)
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#ifndef WM4BOX2_H
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#define WM4BOX2_H
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#include "Wm4FoundationLIB.h"
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#include "Wm4Vector2.h"
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namespace Wm4
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{
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template <class Real>
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class Box2
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{
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public:
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// A box has center C, axis directions U[0] and U[1] (both unit-length
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// vectors), and extents e[0] and e[1] (both nonnegative numbers). A
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// point X = C+y[0]*U[0]+y[1]*U[1] is inside or on the box whenever
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// |y[i]| <= e[i] for all i.
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// construction
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Box2 (); // uninitialized
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Box2 (const Vector2<Real>& rkCenter, const Vector2<Real>* akAxis,
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const Real* afExtent);
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Box2 (const Vector2<Real>& rkCenter, const Vector2<Real>& rkAxis0,
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const Vector2<Real>& rkAxis1, Real fExtent0, Real fExtent1);
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void ComputeVertices (Vector2<Real> akVertex[4]) const;
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Vector2<Real> Center;
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Vector2<Real> Axis[2]; // must be an orthonormal set of vectors
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Real Extent[2]; // must be nonnegative
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};
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#include "Wm4Box2.inl"
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typedef Box2<float> Box2f;
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typedef Box2<double> Box2d;
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}
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#endif
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