Package org.locationtech.jts.geom.prep

Class PreparedPolygon

java.lang.Object

org.locationtech.jts.geom.prep.BasicPreparedGeometry

org.locationtech.jts.geom.prep.PreparedPolygon

All Implemented Interfaces:

PreparedGeometry

public class PreparedPolygon
extends BasicPreparedGeometry

A prepared version for Polygonal geometries. This class supports both Polygons and MultiPolygons.

This class does not support MultiPolygons which are non-valid (e.g. with overlapping elements).

Instances of this class are thread-safe and immutable.

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	isRectangle
private PointOnGeometryLocator	pia
private FastSegmentSetIntersectionFinder	segIntFinder

Constructor Summary

Constructors

Constructor	Description
PreparedPolygon(Polygonal poly)

Method Summary

Modifier and Type	Method	Description
boolean	contains(Geometry g)	Default implementation.
boolean	containsProperly(Geometry g)	Default implementation.
boolean	covers(Geometry g)	Default implementation.
FastSegmentSetIntersectionFinder	getIntersectionFinder()	Gets the indexed intersection finder for this geometry.
PointOnGeometryLocator	getPointLocator()
boolean	intersects(Geometry g)	Default implementation.

Methods inherited from class org.locationtech.jts.geom.prep.BasicPreparedGeometry

coveredBy, crosses, disjoint, envelopeCovers, envelopesIntersect, getGeometry, getRepresentativePoints, isAnyTargetComponentInTest, overlaps, toString, touches, within

Methods inherited from class java.lang.Object

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

Field Details

isRectangle

private final boolean isRectangle

segIntFinder

private FastSegmentSetIntersectionFinder segIntFinder

pia

private PointOnGeometryLocator pia

Constructor Details

PreparedPolygon

public PreparedPolygon(Polygonal poly)

Method Details

getIntersectionFinder

public FastSegmentSetIntersectionFinder getIntersectionFinder()

Gets the indexed intersection finder for this geometry.

Returns:

the intersection finder

getPointLocator

public PointOnGeometryLocator getPointLocator()

intersects

public boolean intersects(Geometry g)

Description copied from class: BasicPreparedGeometry

Default implementation.

Specified by:

intersects in interface PreparedGeometry

Overrides:

intersects in class BasicPreparedGeometry

Parameters:

g - the Geometry to test

Returns:

true if this Geometry intersects the given Geometry

See Also:

• Geometry.intersects(Geometry)

contains

public boolean contains(Geometry g)

Description copied from class: BasicPreparedGeometry

Default implementation.

Specified by:

contains in interface PreparedGeometry

Overrides:

contains in class BasicPreparedGeometry

Parameters:

g - the Geometry to test

Returns:

true if this Geometry contains the given Geometry

See Also:

• Geometry.contains(Geometry)

containsProperly

public boolean containsProperly(Geometry g)

Description copied from class: BasicPreparedGeometry

Default implementation.

Specified by:

containsProperly in interface PreparedGeometry

Overrides:

containsProperly in class BasicPreparedGeometry

Parameters:

g - the Geometry to test

Returns:

true if this Geometry properly contains the given Geometry

See Also:

• Geometry.contains(org.locationtech.jts.geom.Geometry)

covers

public boolean covers(Geometry g)

Description copied from class: BasicPreparedGeometry

Default implementation.

Specified by:

covers in interface PreparedGeometry

Overrides:

covers in class BasicPreparedGeometry

Parameters:

g - the Geometry to test

Returns:

true if this Geometry covers the given Geometry

See Also:

• Geometry.covers(Geometry)