/usr/include/epix/intersections.h is in epix 1.2.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | /*
* intersections.h -- Circle, Plane, Segment, Sphere intersection operators
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.1.9
* Last Change: July 30, 2007
*/
/*
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
* Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh>
* Department of Mathematics and Computer Science
* College of the Holy Cross
* Worcester, MA, 01610-2395, USA
*/
/*
* ePiX is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* ePiX is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copy of the GNU General Public License
* along with ePiX; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef EPIX_INTERSECTIONS
#define EPIX_INTERSECTIONS
namespace ePiX {
class Circle;
class Plane;
class Segment;
class Sphere;
Segment operator* (const Circle&, const Circle&);
Segment operator* (const Circle&, const Plane&);
Segment operator* (const Circle&, const Segment&);
Segment operator* (const Circle&, const Sphere&);
Segment operator* (const Plane&, const Plane&);
P operator* (const Plane&, const Segment&);
Circle operator* (const Plane&, const Sphere&);
P operator* (const Segment&, const Segment&);
Segment operator* (const Segment&, const Sphere&);
Circle operator* (const Sphere&, const Sphere&);
// derived operators with reversed argument order
Segment operator* (const Plane&, const Circle&);
Segment operator* (const Segment&, const Circle&);
Segment operator* (const Sphere&, const Circle&);
P operator* (const Segment&, const Plane&);
Circle operator* (const Sphere&, const Plane&);
Segment operator* (const Sphere&, const Segment&);
} // end of namespace
#endif /* EPIX_INTERSECTIONS */
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