/usr/include/SFCGAL/algorithm/area.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 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /**
* 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_AREA_H_
#define _SFCGAL_ALGORITHM_AREA_H_
#include <SFCGAL/Geometry.h>
#include <SFCGAL/Kernel.h>
namespace SFCGAL {
namespace algorithm {
struct NoValidityCheck;
/**
* @brief Compute the 2D area for a Geometry
* @ingroup public_api
* @warning Z component is ignored, there is no 2D projection for 3D geometries
* @ingroup public_api
* @pre g is a valid geometry
*/
SFCGAL_API double area( const Geometry& g ) ;
/**
* @brief Compute the 2D area for a Geometry
*
* @warning Z component is ignored, there is no 2D projection for 3D geometries
* @ingroup detail
* @pre g is a valid geometry
* @warning No actual validity check is done
*/
SFCGAL_API double area( const Geometry& g, NoValidityCheck ) ;
/**
* @brief Compute the 2D signed area for a Triangle
* @ingroup detail
*/
SFCGAL_API Kernel::FT signedArea( const Triangle& g );
/**
* @brief Compute the 2D signed area for a closed LineString
* @ingroup detail
*/
SFCGAL_API Kernel::FT signedArea( const LineString& g );
/**
* Returns Compute the 2D area for a Triangle
* @ingroup detail
*/
SFCGAL_API double area( const Triangle& g ) ;
/**
* Returns Compute the 2D area for a Polygon
* @ingroup detail
*/
SFCGAL_API double area( const Polygon& g ) ;
/**
* Returns the 2D area for a GeometryCollection
* @ingroup detail
*/
SFCGAL_API double area( const GeometryCollection& g ) ;
/**
* Returns the 2D area for a TriangulatedSurface
* @ingroup detail
*/
SFCGAL_API double area( const TriangulatedSurface& g ) ;
/**
* Returns the 2D area for a TriangulatedSurface
* @ingroup detail
*/
SFCGAL_API double area( const PolyhedralSurface& g ) ;
/**
* Returns 3D area for a Geometry
* @ingroup public_api
* @warning Solid area is set to 0 (might be defined as the area of the surface)
* @ingroup public_api
* @pre g is a valid geometry
*/
SFCGAL_API double area3D( const Geometry& g ) ;
/**
* Returns 3D area for a Geometry
*
* @warning Solid area is set to 0 (might be defined as the area of the surface)
* @ingroup detail
* @pre g is a valid geometry
* @warning No actual validity check is done
*/
SFCGAL_API double area3D( const Geometry& g, NoValidityCheck ) ;
/**
* Returns 3D area for a Polygon
* @ingroup detail
*/
SFCGAL_API double area3D( const Polygon& g ) ;
/**
* Returns the 3D area for a MultiPolygon
* @ingroup detail
*/
SFCGAL_API double area3D( const GeometryCollection& g ) ;
/**
* Returns the 3D area for a PolyhedralSurface
* @ingroup detail
*/
SFCGAL_API double area3D( const PolyhedralSurface& g ) ;
/**
* Returns the 3D area for a Triangle
* @ingroup detail
*/
SFCGAL_API double area3D( const Triangle& g ) ;
/**
* Returns the 3D area for a TriangulatedSurface
* @ingroup detail
*/
SFCGAL_API double area3D( const TriangulatedSurface& g ) ;
}//algorithm
}//SFCGAL
#endif
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