com.moximedia.ows.geom
Class Polygon

java.lang.Object
  com.moximedia.ows.geom.Polygon

All Implemented Interfaces:

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

public class Polygon

extends java.lang.Object

implements Geometry, GeometryType, java.lang.Cloneable, java.io.Serializable

Author:

jdc

See Also:

Serialized Form

Field Summary

Fields inherited from interface com.moximedia.ows.types.GeometryType

GEOMETRY_TYPE_COLLECTION, GEOMETRY_TYPE_ENVELOPE, GEOMETRY_TYPE_LINE, GEOMETRY_TYPE_MULTILINE, GEOMETRY_TYPE_MULTIPOINT, GEOMETRY_TYPE_MULTIPOLYGON, GEOMETRY_TYPE_POINT, GEOMETRY_TYPE_POLYGON, GEOMETRY_TYPE_UNKNOWN

Constructor Summary

Polygon()
Creates new Polygon

Polygon(Points exterior)

Polygon(Points exterior, Points[] holes)

Method Summary

void	addHole(Points pts)
boolean	addVertexToClosestLineSegment(Point pt) Adds a vertex to the closest line segment.
Geometry	buffer(double distance) Returns a new geometry that is a buffer of this one.
java.lang.Object	clone()
boolean	contains(Geometry geometry)
Point	getClosestPointTo(Point pt) Gets the closest vertex in the Polygon to the specified point.
Polygon	getCopy()
double	getDistanceToClosestLineSegment(Point pt) Gets the distance from the specified point to the closest line segment in the exterior or interior of the polygon.
Envelope	getExtent()
Points	getExterior()
int	getGeometryType() Returns the geometry type of this geometry.
java.lang.String	getGid()
Points	getHole(int index)
int	getHoleCount()
java.util.ArrayList	getHoles()
Points	getHoleWithPoint(Point pt)
Points	getPoints() Returns all the points of the polygon (interior and holes) as a Points object.
boolean	hasHoles()
Geometry	intersection(Polygon polygon) Returns a new geometry representing the intersection of this polygon and another one.
boolean	intersects(Geometry geometry)
boolean	isExteriorPoint(Point pt)
boolean	isGeometryType(int geometryType) Compares a geometry type with another value.
boolean	isInteriorPoint(Point pt)
boolean	isValid() Returns an indicator of whether this shape is valid.
Geometry	project(Projection projection)
Geometry	project(Projection fromProjection, Projection toProjection)
boolean	remove(Point pt)
boolean	removeHoleWithPoint(Point pt)
void	setExterior(Points pts)
void	setSrs(java.lang.String srs)
void	setXmlAttribute(java.lang.String element, java.lang.String name, java.lang.String value)
java.awt.geom.GeneralPath	toGeneralPath()
java.lang.String	toGmlString()
com.vividsolutions.jts.geom.Geometry	toJtsGeometry() Returns this object as a JTS Geometry object.
com.vividsolutions.jts.geom.Geometry	toJtsPolygon() Returns this object as a JTS Polygon object.
boolean	touches(Geometry geometry)
java.lang.String	toWktString() Returns the well known string representation of this object.
Geometry	unproject(Projection projection)

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Polygon

public Polygon()

Creates new Polygon

Polygon

public Polygon(Points exterior)

Polygon

public Polygon(Points exterior,
               Points[] holes)

Method Detail

addHole

public void addHole(Points pts)

getDistanceToClosestLineSegment

public double getDistanceToClosestLineSegment(Point pt)

Gets the distance from the specified point to the closest line segment in the exterior or interior of the polygon.

Parameters:

pt - The point to search from.

Returns:

The distance.

addVertexToClosestLineSegment

public boolean addVertexToClosestLineSegment(Point pt)

Adds a vertex to the closest line segment.

Parameters:

pt - The point to add to the line segment. A vertex will be added to the portion of the line segment closest to the point position.

clone

public java.lang.Object clone()

Specified by:

clone in interface Geometry

getCopy

public Polygon getCopy()

getExtent

public Envelope getExtent()

Specified by:

getExtent in interface Geometry

getExterior

public Points getExterior()

getGeometryType

public int getGeometryType()

Returns the geometry type of this geometry.

Specified by:

getGeometryType in interface Geometry

Returns:

The geometry type of this geometry.

isGeometryType

public boolean isGeometryType(int geometryType)

Compares a geometry type with another value.

Specified by:

isGeometryType in interface Geometry

Parameters:

geometryType - An enumerated value.

Returns:

True if the type of this geometry is the same, otherwise false.

getGid

public java.lang.String getGid()

getHoleCount

public int getHoleCount()

getHole

public Points getHole(int index)

getHoles

public java.util.ArrayList getHoles()

hasHoles

public boolean hasHoles()

setExterior

public void setExterior(Points pts)

setXmlAttribute

public void setXmlAttribute(java.lang.String element,
                            java.lang.String name,
                            java.lang.String value)

Specified by:

setXmlAttribute in interface Geometry

toGeneralPath

public java.awt.geom.GeneralPath toGeneralPath()

toGmlString

public java.lang.String toGmlString()

Specified by:

toGmlString in interface Geometry

project

public Geometry project(Projection fromProjection,
                        Projection toProjection)

Specified by:

project in interface Geometry

project

public Geometry project(Projection projection)

Specified by:

project in interface Geometry

isValid

public boolean isValid()

Returns an indicator of whether this shape is valid.

Specified by:

isValid in interface Geometry

Returns:

True if this shape is valid, otherwise false.

toJtsGeometry

public com.vividsolutions.jts.geom.Geometry toJtsGeometry()

Returns this object as a JTS Geometry object.

Specified by:

toJtsGeometry in interface Geometry

Returns:

This object as a JTS Geometry object.

toJtsPolygon

public com.vividsolutions.jts.geom.Geometry toJtsPolygon()

Returns this object as a JTS Polygon object.

Returns:

This object as a JTS Polygon object.

unproject

public Geometry unproject(Projection projection)

Specified by:

unproject in interface Geometry

buffer

public Geometry buffer(double distance)

Returns a new geometry that is a buffer of this one.

Parameters:

distance - The buffer distance.

Returns:

A new geometry that is this polygon buffered by the specified distance.

intersection

public Geometry intersection(Polygon polygon)

Returns a new geometry representing the intersection of this polygon and another one.

Parameters:

polygon - Another polygon to intersect with this one.

Returns:

The intersection geometry.

intersects

public boolean intersects(Geometry geometry)

Specified by:

intersects in interface Geometry

touches

public boolean touches(Geometry geometry)

getClosestPointTo

public Point getClosestPointTo(Point pt)

Gets the closest vertex in the Polygon to the specified point. This routine uses the exterior and hole vertexes for comparison.

Specified by:

getClosestPointTo in interface Geometry

Parameters:

pt - The point to compare the vertexes to.

Returns:

The closest vertex to the specified point, or null if there are no points in the polygon.

setSrs

public void setSrs(java.lang.String srs)

Specified by:

setSrs in interface Geometry

remove

public boolean remove(Point pt)

getPoints

public Points getPoints()

Returns all the points of the polygon (interior and holes) as a Points object. Note: this is a copy not a reference.

Returns:

The points.

contains

public boolean contains(Geometry geometry)

isExteriorPoint

public boolean isExteriorPoint(Point pt)

isInteriorPoint

public boolean isInteriorPoint(Point pt)

getHoleWithPoint

public Points getHoleWithPoint(Point pt)

removeHoleWithPoint

public boolean removeHoleWithPoint(Point pt)

toWktString

public java.lang.String toWktString()

Returns the well known string representation of this object.

Specified by:

toWktString in interface Geometry

Returns:

The well known text.