/usr/include/OGRE/Plugins/PCZSceneManager/OgreSegment.h is in libogre-dev 1.7.4-3.
This file is owned by root:root, with mode 0o644.
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-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/
Copyright (c) 2000-2011 Torus Knot Software Ltd
Permission is hereby granted, free of charge, to any person obtaining a copy
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OgreSegment.h - 3D Line Segment class for intersection testing in Ogre3D
Some algorithms based off code from the Wild Magic library by Dave Eberly
-----------------------------------------------------------------------------
begin : Mon Apr 02 2007
author : Eric Cha
email : ericc@xenopi.com
Code Style Update : Apr 5, 2007
-----------------------------------------------------------------------------
*/
#ifndef SEGMENT_H
#define SEGMENT_H
#include "OgreVector3.h"
namespace Ogre
{
class Capsule;
class Segment
{
public:
// The segment is represented as P+t*D, where P is the segment origin,
// D is a unit-length direction vector and |t| <= e. The value e is
// referred to as the extent of the segment. The end points of the
// segment are P-e*D and P+e*D. The user must ensure that the direction
// vector is unit-length. The representation for a segment is analogous
// to that for an oriented bounding box. P is the center, D is the
// axis direction, and e is the extent.
// construction
Segment (); // uninitialized
Segment (const Vector3&, const Vector3&, Real);
// set values
void set(const Vector3& newOrigin, const Vector3& newEnd);
void setOrigin(const Vector3& newOrigin);
void setEndPoint(const Vector3& newEndpoint);
// functions to calculate distance to another segment
Real distance(const Segment& otherSegment) const;
Real squaredDistance(const Segment& otherSegment) const;
// intersect check between segment & capsule
bool intersects(const Capsule&) const;
// defining variables
Vector3 mOrigin;
Vector3 mDirection;
Real mExtent;
};
}
#endif //SEGMENT_H
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