/usr/include/SFCGAL/Geometry.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.
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* 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_GEOMETRY_H_
#define _SFCGAL_GEOMETRY_H_
#include <SFCGAL/config.h>
#include <boost/shared_ptr.hpp>
#include <memory>
#include <string>
#include <sstream>
#include <boost/assert.hpp>
namespace CGAL {
class Object;
}
namespace SFCGAL {
class Geometry ;
class Point ;
class LineString ;
class Polygon ;
class GeometryCollection ;
class MultiPoint ;
class MultiLineString ;
class MultiPolygon ;
class Triangle ;
class TriangulatedSurface ;
class PolyhedralSurface ;
//not SFA, appears in GML/CityGML
class Solid ;
//not SFA, appears in GML/CityGML
class MultiSolid ;
//not SFA, appears in GML/CityGML
class Grid ;
class Envelope ;
class GeometryVisitor ;
class ConstGeometryVisitor ;
}
namespace SFCGAL {
/**
* [OGC/SFA]8.2.3 "A common list of codes for geometric types"
*
* @todo solid and triangles as non OGC/SFA geometric types?
* @warning codes for abstract classes and unimplemented classes are hidden
* @warning code values have are important for WKB
*
* @ingroup public_api
*/
enum GeometryType {
// TYPE_GEOMETRY = 0, //abstract
TYPE_POINT = 1,
TYPE_LINESTRING = 2,
TYPE_POLYGON = 3,
TYPE_MULTIPOINT = 4,
TYPE_MULTILINESTRING = 5,
TYPE_MULTIPOLYGON = 6,
TYPE_GEOMETRYCOLLECTION = 7,
// TYPE_CIRCULARSTRING = 8, // not yet supported
// TYPE_COMPOUNDCURVE = 9, // not yet supported
// TYPE_CURVEPOLYGON = 10, // not yet supported
// TYPE_MULTICURVE = 11, //abstract
// TYPE_MULTISURFACE = 12, //abstract
// TYPE_CURVE = 13, //abstract
// TYPE_SURFACE = 14, //abstract
TYPE_POLYHEDRALSURFACE = 15,
TYPE_TRIANGULATEDSURFACE = 16,
//-- not official codes
TYPE_TRIANGLE = 100, //17 in Wikipedia???
TYPE_SOLID = 101,
TYPE_MULTISOLID = 102
};
/**
* @brief coordinate types (XY, XYZ, XYM, etc.)
* @see SFA 2.8.3 LineStringZ = 1003 ( coordinateType + geometryType)
* @ingroup public_api
*/
typedef enum {
COORDINATE_XY = 0 ,
COORDINATE_XYZ = 1000,
COORDINATE_XYM = 2000,
COORDINATE_XYZM = 3000
} CoordinateType ;
/**
* @brief OGC/SFA based Geometry abstract class
*
* @ingroup public_api
*/
class SFCGAL_API Geometry {
public:
virtual ~Geometry();
/**
* @brief Get a deep copy of the geometry
*/
virtual Geometry* clone() const = 0 ;
/**
* @brief [OGC/SFA]returns the geometry type
* @warning use CamelCase (LineString, not LINESTRING)
*/
virtual std::string geometryType() const = 0 ;
/**
* @brief Returns a code corresponding to the type
* @warning not standard
*/
virtual GeometryType geometryTypeId() const = 0 ;
/**
* [OGC/SFA]Dimension of the Geometry ( 0 : punctual, 1 : curve, ...)
* @warning empty geometries provide the dimension corresponding to the object
*/
virtual int dimension() const = 0 ;
/**
* [OGC/SFA]returns the dimension of the coordinates
* @pre suppose no mix of 2D/3D coordinates
*/
virtual int coordinateDimension() const = 0 ;
/**
* [OGC/SFA]test if geometry is empty
*/
virtual bool isEmpty() const = 0 ;
/**
* [OGC/SFA]test if geometry is 3d
* @pre suppose no mix of 2D/3D coordinates
*/
virtual bool is3D() const = 0 ;
/**
* [OGC/SFA]test if geometry is measured (has an m)
* @pre suppose no mix of M/!M points
*/
virtual bool isMeasured() const = 0 ;
//virtual bool isSimple() const = 0 ;
/**
* [OGC/SFA]returns the WKT string
* @param numDecimals extension specify fix precision output
*/
std::string asText( const int& numDecimals = -1 ) const ;
/**
* [OGC/SFA]Returns a polygon representing the BBOX of the geometry
* @todo In order to adapt to 3D, would be better to define an "Envelope type",
* otherway would lead to Polygon and PolyhedralSurface
*/
//std::auto_ptr< Geometry > envelope() const = 0 ;
Envelope envelope() const ;
/**
* @brief [OGC/SFA]Returns the boundary of the geometry
*/
virtual std::auto_ptr< Geometry > boundary() const ;
/**
* @brief Computes the distance to an other geometry
*/
double distance( const Geometry& other ) const ;
/**
* @brief Computes the 3D distance to an other geometry
*/
double distance3D( const Geometry& other ) const ;
//-- helpers
/**
* @brief round the geometry with a corresponding scale factor
* @param scale the scale factor (1 corresponds to the nearest integer, 1000 to a 0.001 tolerance)
*/
void round( const long& scale = 1 ) ;
/**
* @brief [OGC/SFA]Gets the number of geometries in a collection of geometries
* @warning 1 for Point, LineString, Polygon, Triangle
*/
virtual size_t numGeometries() const ;
/**
* @brief [OGC/SFA]Returns the n-th geometry
* @warning *this for Point, LineString, Polygon, Triangle
*/
virtual const Geometry& geometryN( size_t const& n ) const ;
/**
* @brief [OGC/SFA]Returns the n-th geometry
* @warning *this for Point, LineString, Polygon, Triangle
*/
virtual Geometry& geometryN( size_t const& n ) ;
/**
* @brief Tests if geometry is of "Derived" type given as template parameter
* @warning not optimized (slow with dynamic_cast)
*/
template < typename Derived >
inline bool is() const {
return dynamic_cast< Derived const* >( this ) != NULL ;
}
/**
* @brief Downcast to a "Derived" class
* @warning performs check if boost assertions are enabled
* @pre The cast must be doable
*/
template < typename Derived >
inline const Derived& as() const {
BOOST_ASSERT( is< Derived >() );
return *static_cast< Derived const* >( this );
}
/**
* @brief Downcast to a "Derived" class
* @warning performs check if boost assertions are enabled
* @pre The cast must be doable
*/
template < typename Derived >
inline Derived& as() {
BOOST_ASSERT( is< Derived >() );
return *static_cast< Derived* >( this );
}
/**
* @brief [visitor]dispatch visitor
* @ingroup detail
*/
virtual void accept( GeometryVisitor& visitor ) = 0 ;
/**
* @brief [visitor]dispatch visitor
* @ingroup detail
*/
virtual void accept( ConstGeometryVisitor& visitor ) const = 0 ;
/**
* Serializer
* @ingroup detail
*/
template <class Archive>
void serialize( Archive& /*ar*/, const unsigned int /*version*/ ) {
}
protected:
Geometry();
Geometry( const Geometry& );
const Geometry& operator=( const Geometry& );
};
/**
* Equality operator
* @todo only compare coordinate points
* @pre the two geometries must be valid
*/
SFCGAL_API bool operator==( const Geometry&, const Geometry& );
} // namespace SFCGAL
#endif
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