/usr/include/libwildmagic/Wm5IntrLine2Box2.h is in libwildmagic-dev 5.13-1ubuntu3.
This file is owned by root:root, with mode 0o644.
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// 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: 5.0.1 (2010/10/01)
#ifndef WM5INTRLINE2BOX2_H
#define WM5INTRLINE2BOX2_H
#include "Wm5MathematicsLIB.h"
#include "Wm5Intersector.h"
#include "Wm5Line2.h"
#include "Wm5Box2.h"
namespace Wm5
{
template <typename Real>
class WM5_MATHEMATICS_ITEM IntrLine2Box2
: public Intersector<Real,Vector2<Real> >
{
public:
IntrLine2Box2 (const Line2<Real>& line, const Box2<Real>& box);
// Object access.
const Line2<Real>& GetLine () const;
const Box2<Real>& GetBox () const;
// Static intersection queries.
virtual bool Test ();
virtual bool Find ();
// The intersection set.
int GetQuantity () const;
const Vector2<Real>& GetPoint (int i) const;
private:
using Intersector<Real,Vector2<Real> >::IT_EMPTY;
using Intersector<Real,Vector2<Real> >::IT_POINT;
using Intersector<Real,Vector2<Real> >::IT_SEGMENT;
using Intersector<Real,Vector2<Real> >::mIntersectionType;
static bool Clip (Real denom, Real numer, Real& t0, Real& t1);
// The objects to intersect.
const Line2<Real>* mLine;
const Box2<Real>* mBox;
// Information about the intersection set.
int mQuantity;
Vector2<Real> mPoint[2];
public_internal:
// Shared by IntrRay2Box2 and IntrSegment2Box2.
static bool DoClipping (Real t0, Real t1, const Vector2<Real>& origin,
const Vector2<Real>& direction, const Box2<Real>& box, bool solid,
int& quantity, Vector2<Real> point[2], int& intrType);
};
typedef IntrLine2Box2<float> IntrLine2Box2f;
typedef IntrLine2Box2<double> IntrLine2Box2d;
}
#endif
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