com.kheops.jmap.spatial

Class MultiPolygon

java.lang.Object

com.kheops.jmap.spatial.DefaultGeometry

com.kheops.jmap.spatial.GeometryCollection

com.kheops.jmap.spatial.MultiSurface

com.kheops.jmap.spatial.MultiPolygon

All Implemented Interfaces:

Geometry, PolygonTypeGeometry, java.io.Serializable, java.lang.Cloneable

public class MultiPolygon
extends MultiSurface
implements PolygonTypeGeometry

This class represents a collection of Polygon
A single Polygon is allowed even if it's not the correct class.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.kheops.jmap.spatial.GeometryCollection

bounds, geometries

Fields inherited from interface com.kheops.jmap.spatial.Geometry

GEOMETRY_ANNOTATION, GEOMETRY_COMPLEX, GEOMETRY_ELLIPSE, GEOMETRY_LINE, GEOMETRY_LINEAR_RING, GEOMETRY_LINESTRING, GEOMETRY_MULTI_ANNOTATION, GEOMETRY_MULTI_LINESTRING, GEOMETRY_MULTI_POINT, GEOMETRY_MULTI_POLYGON, GEOMETRY_POINT, GEOMETRY_POLYGON, GEOMETRY_RECTANGLE

Constructor Summary

Constructors

Constructor and Description
MultiPolygon()
MultiPolygon(Polygon[] polygons)

Method Summary

Modifier and Type	Method and Description
Point	centroid() Calculates centroid of this collection of polygons.
MultiPolygon	clone() Clones this geometry.
Point	getCenteredPoint() This method returns a point that is typically centered on the geometry.
short	getGeometryId() Returns the geometry class id.
int	getGeometryType() Returns the geometry type for this geometry.
Polygon[]	getPolygons()
LinearRing[]	getRings()
Point	pointOnSurface() a Point on one of the polygon
PolygonGeometryIterator	polygonIterator()
Point[]	serialize() Returns this geometry as an array of Point.
void	setGeometries(Geometry[] geometries)
void	setPolygons(Polygon[] polygons)
java.lang.String	toString() Returns informations about the current geometry.

Methods inherited from class com.kheops.jmap.spatial.GeometryCollection

area, boundary, createBounds, equals, fit, geometryN, getBounds, getGeometries, getGeometryCount, hashCode, keepLineString, keepLineString, keepPoint, keepPoint, keepPolygon, keepPolygon, length, numGeometries, sizeOf, spatiallyEquals, transform, translate, validate

Methods inherited from class com.kheops.jmap.spatial.DefaultGeometry

asText, spatiallyEquals

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.kheops.jmap.spatial.PolygonTypeGeometry

area

Methods inherited from interface com.kheops.jmap.spatial.Geometry

asText, boundary, createBounds, getBounds, length, sizeOf, spatiallyEquals, spatiallyEquals, transform, translate

Constructor Detail

MultiPolygon

public MultiPolygon()

MultiPolygon

public MultiPolygon(Polygon[] polygons)

Method Detail

clone

public MultiPolygon clone()

Description copied from class: GeometryCollection

Clones this geometry.

Specified by:

clone in interface Geometry

Specified by:

clone in class GeometryCollection

Returns:

a deep copy of the current geometry.

centroid

public Point centroid()

Calculates centroid of this collection of polygons.
Computed as the center of mass of the centroids of polygons, weighted by their area

Specified by:

centroid in interface PolygonTypeGeometry

Specified by:

centroid in class MultiSurface

Returns:

serialize

public Point[] serialize()

Description copied from class: GeometryCollection

Returns this geometry as an array of Point.

Specified by:

serialize in interface Geometry

Overrides:

serialize in class GeometryCollection

Returns:

this geometry as an array of Point.

pointOnSurface

public Point pointOnSurface()

a Point on one of the polygon

Specified by:

pointOnSurface in interface PolygonTypeGeometry

Specified by:

pointOnSurface in class MultiSurface

Returns:

getPolygons

public Polygon[] getPolygons()

Returns:

setGeometries

public void setGeometries(Geometry[] geometries)

Specified by:

setGeometries in class GeometryCollection

setPolygons

public void setPolygons(Polygon[] polygons)

Parameters:

polygons -

polygonIterator

public PolygonGeometryIterator polygonIterator()

Specified by:

polygonIterator in interface PolygonTypeGeometry

toString

public java.lang.String toString()

Description copied from interface: Geometry

Returns informations about the current geometry.

Specified by:

toString in interface Geometry

Overrides:

toString in class java.lang.Object

Returns:

informations about the current geometry.

getGeometryId

public short getGeometryId()

Description copied from interface: Geometry

Returns the geometry class id. This method is useful for geometry serialization.

Specified by:

getGeometryId in interface Geometry

Returns:

the geometry id.

getGeometryType

public int getGeometryType()

Description copied from interface: Geometry

Returns the geometry type for this geometry.

Specified by:

getGeometryType in interface Geometry

Returns:

the geometry type.

See Also:

for more details.

getCenteredPoint

public Point getCenteredPoint()

Description copied from interface: Geometry

This method returns a point that is typically centered on the geometry. If the geometry is a point, the point is returned. If it is a line, a point on the curve interpolated at 50% is returned. If the geometry is a surface, the centroid is returned if it is inside the polygon, if not, a point inside the polygon (but likely not exactly in the center) will be returned. If the geometry is a collection, the method is called on the first part of the collection.

Specified by:

getCenteredPoint in interface Geometry

Returns:

a point likely at the center of the geometry

See Also:

Geometry.getCenteredPoint()

getRings

public LinearRing[] getRings()