Package com.github.micycle1.geoblitz

Class YStripesPointInAreaLocator

java.lang.Object

com.github.micycle1.geoblitz.YStripesPointInAreaLocator

All Implemented Interfaces:

org.locationtech.jts.algorithm.locate.PointOnGeometryLocator

public final class YStripesPointInAreaLocator
extends Object
implements org.locationtech.jts.algorithm.locate.PointOnGeometryLocator

Point-in-area locator for areal Geometries that uses per-polygon Y-stripe locators to test points efficiently.

Each polygonal component of the input Geometry is handled by a YStripesPointInPolygonLocator; when multiple polygonal components are present these per-polygon locators are organized in an STRtree for efficient candidate selection. A single-polygon input uses a direct fast-path, and geometries with no polygonal elements always report EXTERIOR.

Instances are immutable and safe for concurrent use, and are intended for repeated point-in-area queries against a fixed Geometry.

Author:

Michael Carleton

See Also:

• YStripesPointInPolygonLocator

Constructor Summary

Constructors

Constructor	Description
YStripesPointInAreaLocator(org.locationtech.jts.geom.Geometry geom)

Method Summary

Modifier and Type	Method	Description
int	locate(org.locationtech.jts.geom.Coordinate p)	Determines the Location of a point in an areal Geometry.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

YStripesPointInAreaLocator

public YStripesPointInAreaLocator(org.locationtech.jts.geom.Geometry geom)

Method Details

locate

public int locate(org.locationtech.jts.geom.Coordinate p)

Determines the Location of a point in an areal Geometry.

Specified by:

locate in interface org.locationtech.jts.algorithm.locate.PointOnGeometryLocator

Parameters:

p - the point to test

Returns:

the location of the point in the geometry