Package mil.nga.sf

Class GeometryCollection<T extends Geometry>

java.lang.Object

mil.nga.sf.Geometry

mil.nga.sf.GeometryCollection<T>

Type Parameters:

T - geometry type

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ExtendedGeometryCollection, MultiCurve, MultiPoint, MultiSurface

public class GeometryCollection<T extends Geometry>
extends Geometry

A collection of zero or more Geometry instances.

Author:

osbornb

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
	GeometryCollection()	Constructor
	GeometryCollection(boolean hasZ, boolean hasM)	Constructor
	GeometryCollection(List<T> geometries)	Constructor
	GeometryCollection(GeometryCollection<T> geometryCollection)	Copy Constructor
protected	GeometryCollection(GeometryType type, boolean hasZ, boolean hasM)	Constructor
	GeometryCollection(T geometry)	Constructor

Method Summary

Modifier and Type	Method	Description
void	addGeometries(List<T> geometries)	Add geometries
void	addGeometry(T geometry)	Add a geometry
Geometry	copy()	Copy the geometry
boolean	equals(Object obj)
GeometryCollection<Geometry>	getAsGeometryCollection()	Get as a top level Geometry Collection
GeometryCollection<Curve>	getAsMultiCurve()	Get as a Multi Curve, a Curve typed Geometry Collection
MultiLineString	getAsMultiLineString()	Get as a MultiLineString, either the current instance or newly created from the LineString geometries
MultiPoint	getAsMultiPoint()	Get as a MultiPoint, either the current instance or newly created from the Point geometries
MultiPolygon	getAsMultiPolygon()	Get as a MultiPolygon, either the current instance or newly created from the Polygon geometries
GeometryCollection<Surface>	getAsMultiSurface()	Get as a Multi Surface, a Surface typed Geometry Collection
GeometryType	getCollectionType()	Get the collection type by evaluating the geometries
List<T>	getGeometries()	Get the list of geometries
T	getGeometry(int n)	Returns the Nth geometry
int	hashCode()
boolean	isEmpty()	Is the Geometry empty
boolean	isMultiCurve()	Determine if this geometry collection contains only Curve geometries
boolean	isMultiLineString()	Determine if this geometry collection is a MultiLineString instance or contains only LineString geometries
boolean	isMultiPoint()	Determine if this geometry collection is a MultiPoint instance or contains only Point geometries
boolean	isMultiPolygon()	Determine if this geometry collection is a MultiPolygon instance or contains only Polygon geometries
boolean	isMultiSurface()	Determine if this geometry collection contains only Surface geometries
boolean	isSimple()	Determine if this Geometry has no anomalous geometric points, such as self intersection or self tangency
int	numGeometries()	Get the number of geometries in the collection
void	setGeometries(List<T> geometries)	Set the geometries

Methods inherited from class mil.nga.sf.Geometry

expandEnvelope, getCentroid, getDegreesCentroid, getDimension, getEnvelope, getGeometryType, hasM, hasZ, is3D, isMeasured, setHasM, setHasZ, updateZM

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometryCollection

public GeometryCollection()

Constructor

GeometryCollection

public GeometryCollection(boolean hasZ,
                          boolean hasM)

Constructor

Parameters:

hasZ - has z

hasM - has m

GeometryCollection

public GeometryCollection(List<T> geometries)

Constructor

Parameters:

geometries - list of geometries

GeometryCollection

public GeometryCollection(T geometry)

Constructor

Parameters:

geometry - geometry

GeometryCollection

public GeometryCollection(GeometryCollection<T> geometryCollection)

Copy Constructor

Parameters:

geometryCollection - geometry collection to copy

GeometryCollection

protected GeometryCollection(GeometryType type,
                             boolean hasZ,
                             boolean hasM)

Constructor

Parameters:

type - geometry type

hasZ - has z

hasM - has m

Method Detail

getGeometries

public List<T> getGeometries()

Get the list of geometries

Returns:

geometries

setGeometries

public void setGeometries(List<T> geometries)

Set the geometries

Parameters:

geometries - geometries

addGeometry

public void addGeometry(T geometry)

Add a geometry

Parameters:

geometry - geometry

addGeometries

public void addGeometries(List<T> geometries)

Add geometries

Parameters:

geometries - geometries

numGeometries

public int numGeometries()

Get the number of geometries in the collection

Returns:

number of geometries

getGeometry

public T getGeometry(int n)

Returns the Nth geometry

Parameters:

n - nth geometry to return

Returns:

geometry

getCollectionType

public GeometryType getCollectionType()

Get the collection type by evaluating the geometries

Returns:

collection geometry type, one of: GeometryType.MULTIPOINT , GeometryType.MULTILINESTRING, GeometryType.MULTIPOLYGON, GeometryType.MULTICURVE, GeometryType.MULTISURFACE, GeometryType.GEOMETRYCOLLECTION

isMultiPoint

public boolean isMultiPoint()

Determine if this geometry collection is a MultiPoint instance or contains only Point geometries

Returns:

true if a multi point or contains only points

getAsMultiPoint

public MultiPoint getAsMultiPoint()

Get as a MultiPoint, either the current instance or newly created from the Point geometries

Returns:

multi point

isMultiLineString

public boolean isMultiLineString()

Determine if this geometry collection is a MultiLineString instance or contains only LineString geometries

Returns:

true if a multi line string or contains only line strings

getAsMultiLineString

public MultiLineString getAsMultiLineString()

Get as a MultiLineString, either the current instance or newly created from the LineString geometries

Returns:

multi line string

isMultiPolygon

public boolean isMultiPolygon()

Determine if this geometry collection is a MultiPolygon instance or contains only Polygon geometries

Returns:

true if a multi polygon or contains only polygons

getAsMultiPolygon

public MultiPolygon getAsMultiPolygon()

Get as a MultiPolygon, either the current instance or newly created from the Polygon geometries

Returns:

multi polygon

isMultiCurve

public boolean isMultiCurve()

Determine if this geometry collection contains only Curve geometries

Returns:

true if contains only curves

getAsMultiCurve

public GeometryCollection<Curve> getAsMultiCurve()

Get as a Multi Curve, a Curve typed Geometry Collection

Returns:

multi curve

isMultiSurface

public boolean isMultiSurface()

Determine if this geometry collection contains only Surface geometries

Returns:

true if contains only surfaces

getAsMultiSurface

public GeometryCollection<Surface> getAsMultiSurface()

Get as a Multi Surface, a Surface typed Geometry Collection

Returns:

multi surface

getAsGeometryCollection

public GeometryCollection<Geometry> getAsGeometryCollection()

Get as a top level Geometry Collection

Returns:

geometry collection

copy

public Geometry copy()

Copy the geometry

Specified by:

copy in class Geometry

Returns:

geometry copy

isEmpty

public boolean isEmpty()

Is the Geometry empty

Specified by:

isEmpty in class Geometry

Returns:

true if empty

isSimple

public boolean isSimple()

Determine if this Geometry has no anomalous geometric points, such as self intersection or self tangency

Specified by:

isSimple in class Geometry

Returns:

true if simple

hashCode

public int hashCode()

Overrides:

hashCode in class Geometry

equals

public boolean equals(Object obj)

Overrides:

equals in class Geometry