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#ifndef SQL_GIS_SRS_WKT_PARSER_H_INCLUDED
#define SQL_GIS_SRS_WKT_PARSER_H_INCLUDED
// Copyright (c) 2016, 2025, Oracle and/or its affiliates.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
//
// This program is designed to work with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation. The authors of MySQL hereby grant you an additional
// permission to link the program and your derivative works with the
// separately licensed software that they have either included with
// the program or referenced in the documentation.
//
// This program 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, version 2.0, for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#include <string>
#include <vector>
#include <boost/variant/variant.hpp>
#include "sql/gis/srid.h"
#include "sql/gis/srs/srs.h"
namespace gis {
namespace srs {
namespace wkt_parser {
/// String type used in the parse tree
typedef std::string String;
struct Authority {
bool valid;
String name;
String code;
Authority() : valid(false) {}
};
struct Spheroid {
String name;
double semi_major_axis;
double inverse_flattening;
Authority authority;
Spheroid() : semi_major_axis(0.0), inverse_flattening(0.0) {}
};
struct Towgs84 {
bool valid;
double dx;
double dy;
double dz;
double ex;
double ey;
double ez;
double ppm;
Towgs84()
: valid(false),
dx(0.0),
dy(0.0),
dz(0.0),
ex(0.0),
ey(0.0),
ez(0.0),
ppm(0.0) {}
};
struct Datum {
String name;
Spheroid spheroid;
Towgs84 towgs84;
Authority authority;
};
struct Prime_meridian {
String name;
double longitude;
Authority authority;
Prime_meridian() : longitude(0.0) {}
};
struct Unit {
String name;
double conversion_factor;
Authority authority;
Unit() : conversion_factor(0.0) {}
};
struct Axis {
String name;
Axis_direction direction;
Axis() : direction(Axis_direction::UNSPECIFIED) {}
};
struct Twin_axes {
bool valid;
Axis x;
Axis y;
Twin_axes() : valid(false) {}
};
struct Geographic_cs {
String name;
Datum datum;
Prime_meridian prime_meridian;
Unit angular_unit;
Twin_axes axes;
Authority authority;
};
struct Projection {
String name;
Authority authority;
};
struct Projection_parameter {
String name;
double value;
Authority authority;
Projection_parameter() : value(0.0) {}
};
typedef std::vector<Projection_parameter> Projection_parameters;
struct Projected_cs {
String name;
Geographic_cs geographic_cs;
Projection projection;
Projection_parameters parameters;
Unit linear_unit;
Twin_axes axes;
Authority authority;
};
typedef boost::variant<Projected_cs, Geographic_cs> Coordinate_system;
/**
Parse an SRS definition WKT string.
The parser understands WKT as defined by the \<horz cs\>
specification in OGC 01-009.
@param[in] srid Spatial reference system ID to use when reporting errors
@param[in] begin Start of WKT string in UTF-8
@param[in] end End of WKT string in UTF-8
@param[out] cs Coordinate system
@retval true An error has occurred
@retval false Success
*/
bool parse_wkt(srid_t srid, const char *begin, const char *end,
Coordinate_system *cs);
} // namespace wkt_parser
} // namespace srs
} // namespace gis
#endif // SQL_GIS_SRS_WKT_PARSER_H_INCLUDED
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