51 lines
1.8 KiB
C++
51 lines
1.8 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 WM4CONTBOX2_H
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#define WM4CONTBOX2_H
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#include "Wm4FoundationLIB.h"
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#include "Wm4Box2.h"
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#include "Wm4Query.h"
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namespace Wm4
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{
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// Compute the smallest axis-aligned bounding box of the points.
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template <class Real> WM4_FOUNDATION_ITEM
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Box2<Real> ContAlignedBox (int iQuantity, const Vector2<Real>* akPoint);
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// Compute an oriented bounding box of the points. The box center is the
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// average of the points. The box axes are the eigenvectors of the covariance
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// matrix.
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template <class Real> WM4_FOUNDATION_ITEM
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Box2<Real> ContOrientedBox (int iQuantity, const Vector2<Real>* akPoint);
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// Compute a minimum area oriented box containing the specified points. The
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// algorithm uses the rotating calipers method. If the input points represent
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// a counterclockwise-ordered polygon, set bIsConvexPolygon to 'true'.
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template <class Real> WM4_FOUNDATION_ITEM
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Box2<Real> ContMinBox (int iQuantity, const Vector2<Real>* akPoint,
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Real fEpsilon, Query::Type eQueryType, bool bIsConvexPolygon);
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// Test for containment. Let X = C + y0*U0 + y1*U1 where C is the box center
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// and U0 and U1 are the orthonormal axes of the box. X is in the box if
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// |y_i| <= E_i for all i where E_i are the extents of the box.
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template <class Real> WM4_FOUNDATION_ITEM
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bool InBox (const Vector2<Real>& rkPoint, const Box2<Real>& rkBox);
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// Construct an oriented box that contains two other oriented boxes. The
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// result is not guaranteed to be the minimum volume box containing the
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// input boxes.
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template <class Real> WM4_FOUNDATION_ITEM
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Box2<Real> MergeBoxes (const Box2<Real>& rkBox0, const Box2<Real>& rkBox1);
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}
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#endif
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