org.geolatte.geom

Class GeometryCollection

java.lang.Object

org.geolatte.geom.Geometry

org.geolatte.geom.GeometryCollection

All Implemented Interfaces:

Serializable, Iterable<Geometry>

Direct Known Subclasses:

MultiLineString, MultiPoint, MultiPolygon

public class GeometryCollection
extends Geometry
implements Iterable<Geometry>

A Geometry that is an ordered collection of some number of Geometrys.

All elements in a GeometryCollection must be in the same CoordinateReferenceSystem, which is also the CoordinateReferenceSystem for the GeometryCollection.

Author:

Karel Maesen, Geovise BVBA, 2011

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Geometry[]	geometries
protected PointCollection	points

Constructor Summary

Constructors

Constructor and Description
GeometryCollection(Geometry[] geometries) Constructs a GeometryCollection from the specified Geometrys.

Method Summary

Modifier and Type	Method and Description
void	accept(GeometryVisitor visitor) Accepts the GeometryVisitor, and will pass it to it's constituent Geometries.
static GeometryCollection	createEmpty() Constructs an empty GeometryCollection.
int	getDimension() Returns the topological dimension of this instance.
Geometry	getGeometryN(int num) Returns the Geometry element at the specified (zero-based) position in this GeometryCollection.
GeometryType	getGeometryType() Returns the type of this Geometry.
int	getNumGeometries() Returns the number of elements in this GeometryCollection.
PointCollection	getPoints() Returns the PointCollection that is associated with this instance
Iterator<Geometry>	iterator() Creates an Iterator over the elements of this GeometryCollection.

Methods inherited from class org.geolatte.geom.Geometry

asBinary, asText, buffer, collectPointSets, contains, convexHull, crosses, difference, disjoint, distance, equals, getBoundary, getCoordinateDimension, getCrsId, getCrsId, getDimensionalFlag, getEnvelope, getGeometryOperations, getGeometryOperations, getNumPoints, getPointN, getSRID, hashCode, intersection, intersects, is3D, isEmpty, isMeasured, isSimple, locateAlong, locateBetween, overlaps, relate, symDifference, toString, touches, union, within

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

geometries

protected final Geometry[] geometries

points

protected final PointCollection points

Constructor Detail

GeometryCollection

public GeometryCollection(Geometry[] geometries)

Constructs a GeometryCollection from the specified Geometrys.

Parameters:

geometries - the Geometrys that are the elements of the constructed GeometryCollection.

Method Detail

createEmpty

public static GeometryCollection createEmpty()

Constructs an empty GeometryCollection.

Returns:

an GeometryCollection that is empty.

getNumGeometries

public int getNumGeometries()

Returns the number of elements in this GeometryCollection.

Returns:

the number of elements of this instance.

getGeometryN

public Geometry getGeometryN(int num)

Returns the Geometry element at the specified (zero-based) position in this GeometryCollection.

Parameters:

num - the position in the collection of the requested Geometry

Returns:

the element Geometry at the position specified by the num parameter.

getDimension

public int getDimension()

Description copied from class: Geometry

Returns the topological dimension of this instance. In non-homogenous collections, this will return the largest topological dimension of the contained Geometries.

Specified by:

getDimension in class Geometry

Returns:

getGeometryType

public GeometryType getGeometryType()

Description copied from class: Geometry

Returns the type of this Geometry.

Specified by:

getGeometryType in class Geometry

Returns:

the GeometryType of this instance.

getPoints

public PointCollection getPoints()

Description copied from class: Geometry

Returns the PointCollection that is associated with this instance

Specified by:

getPoints in class Geometry

Returns:

iterator

public Iterator<Geometry> iterator()

Creates an Iterator over the elements of this GeometryCollection.

Specified by:

iterator in interface Iterable<Geometry>

Returns:

an Iterator over the elements of this GeometryCollection.

accept

public void accept(GeometryVisitor visitor)

Accepts the GeometryVisitor, and will pass it to it's constituent Geometries.

Specified by:

accept in class Geometry

Parameters:

visitor -