GEOS  3.8.0dev
Public Member Functions | List of all members
geos::algorithm::PointLocator Class Reference

Computes the topological relationship (Location) of a single point to a Geometry. More...

#include <geos/geosAlgorithm.h>

Public Member Functions

int locate (const geom::Coordinate &p, const geom::Geometry *geom)
 
bool intersects (const geom::Coordinate &p, const geom::Geometry *geom)
 

Detailed Description

Computes the topological relationship (Location) of a single point to a Geometry.

The algorithm obeys the SFS boundaryDetermination rule to correctly determine whether the point lies on the boundary or not.

Notes:

Member Function Documentation

bool geos::algorithm::PointLocator::intersects ( const geom::Coordinate p,
const geom::Geometry geom 
)
inline

Convenience method to test a point for intersection with a Geometry

Parameters
pthe coordinate to test
geomthe Geometry to test
Returns
true if the point is in the interior or boundary of the Geometry

References geos::geom::Location::EXTERIOR.

int geos::algorithm::PointLocator::locate ( const geom::Coordinate p,
const geom::Geometry geom 
)

Computes the topological relationship (Location) of a single point to a Geometry. It handles both single-element and multi-element Geometries. The algorithm for multi-part Geometriestakes into account the SFS Boundary Determination rule.

Returns
the Location of the point relative to the input Geometry

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