org.geolatte.geom

Class MultiPolygon

java.lang.Object

org.geolatte.geom.Geometry

org.geolatte.geom.GeometryCollection

org.geolatte.geom.MultiPolygon

All Implemented Interfaces:

Serializable, Iterable<Geometry>

public class MultiPolygon
extends GeometryCollection

A GeometryCollection that contains only Polygons.

Author:

Karel Maesen, Geovise BVBA creation-date: 4/20/11

See Also:

Serialized Form

Field Summary

Fields inherited from class org.geolatte.geom.GeometryCollection

geometries, points

Constructor Summary

Constructors

Constructor and Description
MultiPolygon(Polygon[] polygons) Constructs a MultiPolygon from the specified array of Polygons.

Method Summary

Modifier and Type	Method and Description
double	area() Returns the sum of the areas of all element Polygons.
Point	centroid() Returns the mathematical centroid for this MultiPolygon.
static MultiPolygon	createEmpty() Constructs an empty MultiPolygon.
Polygon	getGeometryN(int num) Returns the Geometry element at the specified (zero-based) position in this GeometryCollection.
GeometryType	getGeometryType() Returns the type of this Geometry.
Point	pointOnSurface() Returns a Point guaranteed to be on this MultiPolygon.

Methods inherited from class org.geolatte.geom.GeometryCollection

accept, getDimension, getNumGeometries, getPoints, iterator

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

Constructor Detail

MultiPolygon

public MultiPolygon(Polygon[] polygons)

Constructs a MultiPolygon from the specified array of Polygons.

Parameters:

polygons - the element Polygons for the constructed MultiPolygon

Method Detail

createEmpty

public static MultiPolygon createEmpty()

Constructs an empty MultiPolygon.

Returns:

an empty MultiPolygon.

getGeometryN

public Polygon getGeometryN(int num)

Description copied from class: GeometryCollection

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

Overrides:

getGeometryN in class GeometryCollection

Parameters:

num - the position in the collection of the requested Geometry

Returns:

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

area

public double area()

Returns the sum of the areas of all element Polygons.

Returns:

the sum of the areas of all element Polygons.

centroid

public Point centroid()

Returns the mathematical centroid for this MultiPolygon.

Returns:

the mathematical centroid for this MultiPolygon.

pointOnSurface

public Point pointOnSurface()

Returns a Point guaranteed to be on this MultiPolygon.

Returns:

a Point guaranteed to be on this MultiPolygon.

getGeometryType

public GeometryType getGeometryType()

Description copied from class: Geometry

Returns the type of this Geometry.

Overrides:

getGeometryType in class GeometryCollection

Returns:

the GeometryType of this instance.