A TopologyLocation is the labelling of a GraphComponent's topological relationship to a single Geometry. More...

Public Member Functions
	TopologyLocation (Location on, Location left, Location right)
	Constructs a TopologyLocation specifying how points on, to the left of, and to the right of some GraphComponent relate to some Geometry.

	TopologyLocation (Location on)

	TopologyLocation (const TopologyLocation &gl)

TopologyLocation &	operator= (const TopologyLocation &gl)

Location	get (std::size_t posIndex) const

bool	isNull () const

bool	isAnyNull () const

bool	isEqualOnSide (const TopologyLocation &le, uint32_t locIndex) const

bool	isArea () const

bool	isLine () const

void	flip ()

void	setAllLocations (Location locValue)

void	setAllLocationsIfNull (Location locValue)

void	setLocation (std::size_t locIndex, Location locValue)

void	setLocation (Location locValue)

const std::array< Location, 3 > &	getLocations () const

void	setLocations (Location on, Location left, Location right)

bool	allPositionsEqual (Location loc) const

void	merge (const TopologyLocation &gl)
	merge updates only the UNDEF attributes of this object with the attributes of another.

std::string	toString () const

Friends
std::ostream &	operator<< (std::ostream &, const TopologyLocation &)

Detailed Description

A TopologyLocation is the labelling of a GraphComponent's topological relationship to a single Geometry.

If the parent component is an area edge, each side and the edge itself have a topological location. These locations are named

If the parent component is a line edge or node, there is a single topological relationship attribute, ON.

The possible values of a topological location are {Location::NONE, Location::EXTERIOR, Location::BOUNDARY, Location::INTERIOR}

The labelling is stored in an array location[j] where where j has the values ON, LEFT, RIGHT

Constructor & Destructor Documentation

geos::geomgraph::TopologyLocation::TopologyLocation	(	Location	on,
		Location	left,
		Location	right
	)

inline

Constructs a TopologyLocation specifying how points on, to the left of, and to the right of some GraphComponent relate to some Geometry.

Possible values for the parameters are Location::NONE, Location::EXTERIOR, Location::BOUNDARY, and Location::INTERIOR.

bool geos::geomgraph::TopologyLocation::isAnyNull ( ) const

inline

bool geos::geomgraph::TopologyLocation::isNull ( ) const

inline

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