MySQL 8.0.30
Source Code Documentation
simplify_functor.h
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1#ifndef SQL_GIS_SIMPLIFY_FUNCTOR_H_INCLUDED
2#define SQL_GIS_SIMPLIFY_FUNCTOR_H_INCLUDED
3
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25
26/// @file
27///
28/// This file declares the simplify functor interface.
29///
30/// The functor is not intended for use directly by MySQL code. It should be
31/// used indirectly through the gis::simplify() function.
32///
33/// @see gis::simplify
34
35#include <memory> // std::unique_ptr
36
37#include <boost/geometry.hpp>
38
39#include "sql/gis/functor.h"
40#include "sql/gis/geometries.h"
41
42namespace gis {
43
44/// Simplify functor that calls Boost.Geometry with the correct parameter types.
45///
46/// The functor throws exceptions and is therefore only intended used to
47/// implement simplify or other geographic functions. It should not be used
48/// directly by other MySQL code.
49class Simplify : public Unary_functor<std::unique_ptr<Geometry>> {
50 private:
52
53 public:
54 Simplify(double max_distance) : m_max_distance(max_distance) {}
55 std::unique_ptr<Geometry> operator()(const Geometry &g) const override;
56 std::unique_ptr<Geometry> eval(const Geometry &g) const;
57 std::unique_ptr<Geometry> eval(const Cartesian_point &g) const;
58 std::unique_ptr<Geometry> eval(const Cartesian_linestring &g) const;
59 std::unique_ptr<Geometry> eval(const Cartesian_polygon &g) const;
60 std::unique_ptr<Geometry> eval(const Cartesian_geometrycollection &g) const;
61 std::unique_ptr<Geometry> eval(const Cartesian_multipoint &g) const;
62 std::unique_ptr<Geometry> eval(const Cartesian_multilinestring &g) const;
63 std::unique_ptr<Geometry> eval(const Cartesian_multipolygon &g) const;
64};
65
66} // namespace gis
67
68#endif // SQL_GIS_SIMPLIFY_FUNCTOR_H_INCLUDED
A Cartesian 2d geometry collection.
Definition: geometries_cs.h:374
A Cartesian 2d linestring.
Definition: geometries_cs.h:70
A Cartesian 2d multilinestring.
Definition: geometries_cs.h:601
A Cartesian 2d multipoint.
Definition: geometries_cs.h:500
A Cartesian 2d multipolygon.
Definition: geometries_cs.h:719
A Cartesian 2d point.
Definition: geometries_cs.h:46
A Cartesian 2d polygon.
Definition: geometries_cs.h:268
Abstract superclass for all geometric objects.
Definition: geometries.h:99
Simplify functor that calls Boost.Geometry with the correct parameter types.
Definition: simplify_functor.h:49
std::unique_ptr< Geometry > eval(const Geometry &g) const
Definition: simplify.cc:52
std::unique_ptr< Geometry > operator()(const Geometry &g) const override
Definition: simplify.cc:48
double m_max_distance
Definition: simplify_functor.h:51
Simplify(double max_distance)
Definition: simplify_functor.h:54
The base class of all functors that take one geometry argument.
Definition: functor.h:614
This file contains the superclasses for GIS functors.
This file declares the geometry class hierarchy used by the server as the internal representation of ...
Definition: area.cc:46