You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
2.2 KiB
55 lines
2.2 KiB
/* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
|
|
|
|
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 also distributed 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 included with MySQL.
|
|
|
|
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
|
|
|