com.vividsolutions.jts.geom.util
Class GeometryCombiner

java.lang.Object
  com.vividsolutions.jts.geom.util.GeometryCombiner

public class GeometryCombiner
extends java.lang.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)

Constructor Summary

GeometryCombiner(java.util.Collection geoms)
Creates a new combiner for a collection of geometries

Method Summary

Geometry	combine() Computes the combination of the input geometries to produce the most appropriate Geometry or GeometryCollection
static Geometry	combine(java.util.Collection 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(java.util.Collection 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(java.util.Collection geoms)

Creates a new combiner for a collection of geometries

Parameters:

geoms - the geometries to combine

Method Detail

combine

public static Geometry combine(java.util.Collection 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(java.util.Collection 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