org.opengis.cite.kml2.util

Class JTSGeometryBuilder

java.lang.Object

org.opengis.cite.kml2.util.JTSGeometryBuilder

public class JTSGeometryBuilder
extends Object

Builds JTS geometry objects from KML representations.

Constructor Summary

Constructors

Constructor and Description
JTSGeometryBuilder()

Method Summary

Modifier and Type	Method and Description
com.vividsolutions.jts.geom.LinearRing	buildLinearRing(Element ring) Builds a LinearRing geometry from a kml:LinearRing element.
com.vividsolutions.jts.geom.LineString	buildLineString(Element line) Builds a LineString geometry from a kml:LineString element.
com.vividsolutions.jts.geom.Point	buildPoint(Element point) Builds a Point geometry from a kml:Point element.
com.vividsolutions.jts.geom.Point	buildPointFromLocation(Element location) Builds a Point geometry from a kml:Location element.
com.vividsolutions.jts.geom.Polygon	buildPolygon(Element polygon) Builds a Polygon geometry from a kml:Polygon element.
com.vividsolutions.jts.geom.Polygon	buildPolygon(com.vividsolutions.jts.geom.Envelope env) Builds a Polygon from the given envelope.
com.vividsolutions.jts.geom.Polygon	buildPolygonFromCoordinates(Node coords) Builds a Polygon with an exterior boundary delimited by the given sequence of coordinates.
(package private) List<com.vividsolutions.jts.geom.Coordinate>	createCoordinateList(Node coords) Creates a Coordinate sequence from the content of a kml:coordinates element.

Methods inherited from class java.lang.Object

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

Constructor Detail

JTSGeometryBuilder

public JTSGeometryBuilder()

Method Detail

buildPoint

public com.vividsolutions.jts.geom.Point buildPoint(Element point)

Builds a Point geometry from a kml:Point element.

Parameters:

point - An Element node (kml:Point).

Returns:

A JTS Point.

buildPointFromLocation

public com.vividsolutions.jts.geom.Point buildPointFromLocation(Element location)

Builds a Point geometry from a kml:Location element.

Parameters:

location - An Element node (kml:Location).

Returns:

A JTS Point.

buildLineString

public com.vividsolutions.jts.geom.LineString buildLineString(Element line)

Builds a LineString geometry from a kml:LineString element.

Parameters:

line - An Element node (kml:LineString).

Returns:

A JTS LineString.

buildLinearRing

public com.vividsolutions.jts.geom.LinearRing buildLinearRing(Element ring)

Builds a LinearRing geometry from a kml:LinearRing element.

Parameters:

ring - An Element node (kml:LinearRing).

Returns:

A JTS LinearRing.

buildPolygon

public com.vividsolutions.jts.geom.Polygon buildPolygon(Element polygon)

Builds a Polygon geometry from a kml:Polygon element.

Parameters:

polygon - An Element node (kml:Polygon).

Returns:

A JTS Polygon.

Throws:

IllegalArgumentException - If a boundary element (ring) is not closed or an inner boundary is not inside the outer boundary.

buildPolygon

public com.vividsolutions.jts.geom.Polygon buildPolygon(com.vividsolutions.jts.geom.Envelope env)

Builds a Polygon from the given envelope.

Parameters:

env - A JTS envelope defining some spatial extent.

Returns:

A rectangular polygon that covers the same extent as the envelope.

buildPolygonFromCoordinates

public com.vividsolutions.jts.geom.Polygon buildPolygonFromCoordinates(Node coords)

Builds a Polygon with an exterior boundary delimited by the given sequence of coordinates. The sequence will be closed if necessary such that the first and last vertices are coincident.

Parameters:

coords - A node containing a list of coordinates (kml:coordinates).

Returns:

A JTS Polygon (with no interior boundaries).

createCoordinateList

List<com.vividsolutions.jts.geom.Coordinate> createCoordinateList(Node coords)

Creates a Coordinate sequence from the content of a kml:coordinates element.

Parameters:

coords - A node containing a coordinate sequence (kml:coordinates).

Returns:

A list containing one or more Coordinate objects.