com.revolsys.jts.geom

Interface Polygon

All Superinterfaces:

Cloneable, Comparable<Object>, DataTypeProxy, Geometry, Polygonal, Serializable

All Known Implementing Classes:

AbstractPolygon, PolygonImpl, PreparedPolygon

public interface Polygon
extends Geometry, Polygonal

Represents a polygon with linear edges, which may include holes. The outer boundary (shell) and inner boundaries (holes) of the polygon are represented by LinearRings. The boundary rings of the polygon may have any orientation. Polygons are closed, simple geometries by definition.

The polygon model conforms to the assertions specified in the OpenGIS Simple Features Specification for SQL.

A Polygon is topologically valid if and only if:

• the coordinates which define it are valid coordinates
• the linear rings for the shell and holes are valid (i.e. are closed and do not self-intersect)
• holes touch the shell or another hole at at most one point (which implies that the rings of the shell and holes must not cross)
• the interior of the polygon is connected, or equivalently no sequence of touching holes makes the interior of the polygon disconnected (i.e. effectively split the polygon into two pieces).

Version:

1.7

Field Summary

Fields inherited from interface com.revolsys.jts.geom.Geometry

M, sortedGeometryTypes, X, Y, Z

Method Summary

Methods

Modifier and Type	Method and Description
Polygon	clone() Creates and returns a full copy of this Polygon object.
LinearRing	getExteriorRing()
LinearRing	getInteriorRing(int ringIndex)
int	getNumInteriorRing()
LinearRing	getRing(int ringIndex)
int	getRingCount()
List<LinearRing>	getRings()
Iterable<LinearRing>	holes()
Polygon	move(double... deltas)
Polygon	normalize() Converts this Geometry to normal form (or canonical form ).
Polygon	prepare()
Polygon	reverse() Computes a new geometry which has all component coordinate sequences in reverse order (opposite orientation) to this one.
Iterable<LinearRing>	rings()

Methods inherited from interface com.revolsys.jts.geom.Geometry

appendVertex, buffer, buffer, buffer, compareTo, compareToSameClass, contains, containsProperly, convert, convert, convexHull, copy, coveredBy, covers, crosses, deleteVertex, difference, disjoint, distance, equal, equals, equals, equals, equalsExact, equalsExact, equalsNorm, equalsTopo, geometries, getArea, getAxisCount, getBoundary, getBoundaryDimension, getBoundingBox, getCentroid, getClassSortIndex, getCoordinateSystem, getDimension, getEnvelope, getGeometries, getGeometries, getGeometry, getGeometryComponents, getGeometryCount, getGeometryFactory, getGeometryType, getInteriorPoint, getLength, getPoint, getPointWithin, getSegment, getSrid, getToVertex, getUserData, getVertex, getVertexCount, hashCode, hasInvalidXyCoordinates, insertVertex, intersection, intersects, intersects, isEmpty, isRectangle, isSimple, isValid, isWithinDistance, moveVertex, overlaps, relate, relate, segments, setUserData, symDifference, toClockwise, toCounterClockwise, touches, toWkt, union, union, vertices, within

Methods inherited from interface com.revolsys.data.types.DataTypeProxy

getDataType

Methods inherited from interface com.revolsys.jts.geom.Polygonal

getBoundingBox

Method Detail

clone

Polygon clone()

Creates and returns a full copy of this Polygon object. (including all coordinates contained by it).

Specified by:

clone in interface Geometry

Returns:

a clone of this instance

getExteriorRing

LinearRing getExteriorRing()

getInteriorRing

LinearRing getInteriorRing(int ringIndex)

getNumInteriorRing

int getNumInteriorRing()

getRing

LinearRing getRing(int ringIndex)

getRingCount

int getRingCount()

getRings

List<LinearRing> getRings()

holes

Iterable<LinearRing> holes()

move

Polygon move(double... deltas)

Specified by:

move in interface Geometry

normalize

Polygon normalize()

Description copied from interface: Geometry

Converts this Geometry to normal form (or canonical form ). Normal form is a unique representation for Geometry s. It can be used to test whether two Geometrys are equal in a way that is independent of the ordering of the coordinates within them. Normal form equality is a stronger condition than topological equality, but weaker than pointwise equality. The definitions for normal form use the standard lexicographical ordering for coordinates. "Sorted in order of coordinates" means the obvious extension of this ordering to sequences of coordinates.

Specified by:

normalize in interface Geometry

Returns:

a normalized copy of this geometry.

See Also:

Geometry.normalize()

prepare

Polygon prepare()

Specified by:

prepare in interface Geometry

reverse

Polygon reverse()

Description copied from interface: Geometry

Computes a new geometry which has all component coordinate sequences in reverse order (opposite orientation) to this one.

Specified by:

reverse in interface Geometry

Returns:

a reversed geometry

rings

Iterable<LinearRing> rings()