geos::algorithm::PointLocator Class Reference

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

#include <geos/geosAlgorithm.h>

List of all members.

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:

Last port: algorithm/PointLocator.java rev. 1.26 (JTS-1.7+)


Member Function Documentation

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 Geometries takes into account the boundaryDetermination rule.

Returns:
the Location of the point relative to the input Geometry

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:
p the coordinate to test
geom the Geometry to test
Returns:
true if the point is in the interior or boundary of the Geometry


The documentation for this class was generated from the following file:
Generated on Fri Mar 27 04:53:13 2009 for GEOS by  doxygen 1.5.4