MySQL 9.1.0
Source Code Documentation
length.h
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1#ifndef GIS__LENGTH_H_INCLUDED
2#define GIS__LENGTH_H_INCLUDED
3
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26
27/// @file
28///
29/// This file declares the interface to calculate the length of linestrings and
30/// multilinestrings.
31
32#include "sql/dd/types/spatial_reference_system.h" // dd::Spatial_reference_system
33#include "sql/gis/geometries.h"
34
35namespace gis {
36/// Computes the length of linestrings and multilinestrings.
37///
38/// @param[in] srs The spatial reference system.
39/// @param[in] g1 linestring or multilinestring.
40/// @param[out] distance The length of g1 in the SRS linear unit.
41/// @param[out] null True if the return value is NULL.
42///
43/// @retval false Success.
44/// @retval true An error has occurred. The error has been reported with
45/// my_error().
46bool length(const dd::Spatial_reference_system *srs, const Geometry *g1,
47 double *distance, bool *null) noexcept;
48
49} // namespace gis
50
51#endif // GIS__LENGTH_H_INCLUDED
Definition: spatial.h:213
Definition: spatial_reference_system.h:53
This file declares the geometry class hierarchy used by the server as the internal representation of ...
Definition: area.cc:47
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:76
bool distance(const dd::Spatial_reference_system *srs, const Geometry *g1, const Geometry *g2, double *distance, bool *is_null) noexcept
Computes the distance between two geometries.
Definition: distance.cc:40