com.revolsys.jts.geom.util

Class GeometryCombiner

java.lang.Object

com.revolsys.jts.geom.util.GeometryCombiner

public class GeometryCombiner
extends Object

Combines Geometrys to produce a GeometryCollection of the most appropriate type. Input geometries which are already collections will have their elements extracted first. No validation of the result geometry is performed. (The only case where invalidity is possible is where Polygonal geometries are combined and result in a self-intersection).

Author:

mbdavis

See Also:

GeometryFactory.buildGeometry(java.util.Collection<? extends com.revolsys.jts.geom.Geometry>)

Constructor Summary

Constructors

Constructor and Description
GeometryCombiner(Collection<? extends Geometry> geoms) Creates a new combiner for a collection of geometries

Method Summary

Methods

Modifier and Type	Method and Description
Geometry	combine() Computes the combination of the input geometries to produce the most appropriate Geometry or GeometryCollection
static Geometry	combine(Collection<? extends Geometry> geoms) Combines a collection of geometries.
static Geometry	combine(Geometry g0, Geometry g1) Combines two geometries.
static Geometry	combine(Geometry g0, Geometry g1, Geometry g2) Combines three geometries.
static GeometryFactory	extractFactory(Collection<? extends Geometry> geoms) Extracts the GeometryFactory used by the geometries in a collection

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometryCombiner

public GeometryCombiner(Collection<? extends Geometry> geoms)

Creates a new combiner for a collection of geometries

Parameters:

geoms - the geometries to combine

Method Detail

combine

public static Geometry combine(Collection<? extends Geometry> geoms)

Combines a collection of geometries.

Parameters:

geoms - the geometries to combine

Returns:

the combined geometry

combine

public static Geometry combine(Geometry g0,
               Geometry g1)

Combines two geometries.

Parameters:

g0 - a geometry to combine

g1 - a geometry to combine

Returns:

the combined geometry

combine

public static Geometry combine(Geometry g0,
               Geometry g1,
               Geometry g2)

Combines three geometries.

Parameters:

g0 - a geometry to combine

g1 - a geometry to combine

g2 - a geometry to combine

Returns:

the combined geometry

extractFactory

public static GeometryFactory extractFactory(Collection<? extends Geometry> geoms)

Extracts the GeometryFactory used by the geometries in a collection

Parameters:

geoms -

Returns:

a GeometryFactory

combine

public Geometry combine()

Computes the combination of the input geometries to produce the most appropriate Geometry or GeometryCollection

Returns:

a Geometry which is the combination of the inputs