/usr/include/SFCGAL/algorithm/offset.h is in libsfcgal-dev 1.2.2-1.
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  | /**
 *   SFCGAL
 *
 *   Copyright (C) 2012-2013 Oslandia <infos@oslandia.com>
 *   Copyright (C) 2012-2013 IGN (http://www.ign.fr)
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Library General Public
 *   License as published by the Free Software Foundation; either
 *   version 2 of the License, or (at your option) any later version.
 *
 *   This library 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
 *   Library General Public License for more details.
 *   You should have received a copy of the GNU Library General Public
 *   License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _SFCGAL_ALGORITHM_OFFSET_H_
#define _SFCGAL_ALGORITHM_OFFSET_H_
#include <SFCGAL/config.h>
#include <memory>
namespace SFCGAL {
class Geometry ;
class MultiPolygon ;
}
namespace SFCGAL {
namespace algorithm {
struct NoValidityCheck;
/**
 * @brief [experimental]compute polygon offset
 *
 * @warning test in order to compare with minkowski sum
 * @pre g is a valid Geometry
 * @ingroup public_api
 */
SFCGAL_API std::auto_ptr< MultiPolygon > offset( const Geometry& g, const double& r ) ;
/**
 * @brief [experimental]compute polygon offset
 *
 * @warning test in order to compare with minkowski sum
 * @pre g is a valid Geometry
 * @ingroup detail
 * @warning No actual validity check is done.
 */
SFCGAL_API std::auto_ptr< MultiPolygon > offset( const Geometry& g, const double& r, NoValidityCheck ) ;
}//namespace algorithm
}//namespace SFCGAL
#endif
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