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/* Copyright (c) 2018, 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 */
/* @file
Interface for obtaining area of geometry. */
#ifndef SQL_GIS_AREA_H_INCLUDED
#define SQL_GIS_AREA_H_INCLUDED
#include "sql/dd/types/spatial_reference_system.h" // dd::Spatial_reference_system
#include "sql/gis/geometries.h" // gis::Geometry
namespace gis {
/* Calculate the area of a geometry.
The coordinate system of the geometry must match the coordinate system of
the SRID. It is the caller's responsibility to guarantee this.
@param[in] srs The spatial reference system.
@param[in] g Input geometry.
@param[in] func_name Function name used in error reporting.
@param[out] result Result. Invalid if `result_null`.
@param[out] result_null Whether result is `NULL` instead of `result`.
@retval false Success.
@retval true An error has occurred. The error has been reported with
my_error(). */
bool area(const dd::Spatial_reference_system *srs, const Geometry *g,
const char *func_name, double *result, bool *result_null) noexcept;
} // namespace gis
#endif // SQL_GIS_AREA_H_INCLUDED
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