A ring-shaped linestring. More...

#include <geometries.h>

Inheritance diagram for gis::Linearring:

Public Member Functions
bool	accept (Geometry_visitor *v) override=0
	Applies a hierarchical visitor to this geometry. More...

Public Member Functions inherited from gis::Linestring
Geometry_type	type () const override
	Gets the geometry type of the object. More...

bool	is_empty () const override
	Check if this is an empty geometry. More...

Linestring *	clone () const override=0

virtual void	push_back (const Point &pt)=0
	Adds a point to the end of the linestring. More...

virtual void	push_back (Point &&pt)=0

virtual void	pop_front ()=0
	Removes a point from the front of the linestring. More...

virtual bool	empty () const =0
	Checks if the linestring is empty. More...

virtual std::size_t	size () const =0
	Returns the size of (number of points in) the linestring. More...

virtual void	clear () noexcept=0
	Removes all points from the linestring. More...

virtual Point &	back ()=0
	Returns the last point of the linestring. More...

virtual const Point &	back () const =0

virtual Point &	front ()=0
	Returns the first point of the linestring. More...

virtual const Point &	front () const =0

virtual Point &	operator[] (std::size_t i)=0

virtual const Point &	operator[] (std::size_t i) const =0

Public Member Functions inherited from gis::Geometry
	Geometry ()=default

virtual	~Geometry ()=default

	Geometry (const Geometry &)=default

Geometry &	operator= (const Geometry &)=default

virtual Coordinate_system	coordinate_system () const =0
	Gets the coordinate system. More...

Static Public Member Functions
static Linearring *	create_linearring (Coordinate_system coordinate_system)
	Creates a subclass of Linearring from a Coordinate_system. More...

Static Public Member Functions inherited from gis::Linestring
static Linestring *	create_linestring (Coordinate_system coordinate_system)
	Creates a subclass of Linestring from a Coordinate_system. More...

Detailed Description

A ring-shaped linestring.

Linearring is a non-instantiable type in SQL. It is used to represent polygon rings.

The start and end point of the linestring must be the same (assumed, but not enforced, by the implementation).

Member Function Documentation

bool gis::Linearring::accept ( Geometry_visitor * v )

overridepure virtual

Applies a hierarchical visitor to this geometry.

Parameters

v	A hierarchical visitor.

Return values

true	The execution was aborted by the visitor.
false	The execution completed.

Linearring * gis::Linearring::create_linearring ( Coordinate_system coordinate_system )

static

Creates a subclass of Linearring from a Coordinate_system.

Parameters

[in] coordinate_system Coordinate system to create a Linearring for.

Returns: A pointer to a Linearring that caller must free when it is done with it.

The documentation for this class was generated from the following files: