com.vividsolutions.jump.util

Class CoordinateArrays

java.lang.Object

com.vividsolutions.jump.util.CoordinateArrays

public class CoordinateArrays
extends Object

Some utility functions for handling Coordinate arrays.

Constructor Summary

Constructors

Constructor and Description
CoordinateArrays()

Method Summary

Modifier and Type	Method and Description
static void	addCoordinateArrays(com.vividsolutions.jts.geom.Geometry g, boolean orientPolygons, List coordArrayList) Extract the coordinate arrays for a geometry into a List.
static com.vividsolutions.jts.geom.Coordinate[]	ensureOrientation(com.vividsolutions.jts.geom.Coordinate[] coord, int desiredOrientation) Sets the orientation of an array of coordinates.
static boolean	equals(com.vividsolutions.jts.geom.Coordinate[] coord1, com.vividsolutions.jts.geom.Coordinate[] coord2)
static List	fromCoordinateArrays(List coordArrays, com.vividsolutions.jts.geom.GeometryFactory fact) Converts a collection of coordinate arrays to a collection of geometries.
static void	reverse(com.vividsolutions.jts.geom.Coordinate[] coord)
static com.vividsolutions.jts.geom.Coordinate[]	toCoordinateArray(List coordList)
static List	toCoordinateArrays(com.vividsolutions.jts.geom.Geometry g, boolean orientPolygons) Extract the coordinate arrays for a geometry.
static com.vividsolutions.jts.geom.Geometry	toLineOrPoint(com.vividsolutions.jts.geom.Coordinate[] coords, com.vividsolutions.jts.geom.GeometryFactory fact) Converts an array of coordinates to a line or point, as appropriate.

Methods inherited from class java.lang.Object

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

Constructor Detail

CoordinateArrays

public CoordinateArrays()

Method Detail

toCoordinateArray

public static com.vividsolutions.jts.geom.Coordinate[] toCoordinateArray(List coordList)

reverse

public static void reverse(com.vividsolutions.jts.geom.Coordinate[] coord)

toLineOrPoint

public static com.vividsolutions.jts.geom.Geometry toLineOrPoint(com.vividsolutions.jts.geom.Coordinate[] coords,
                                                                 com.vividsolutions.jts.geom.GeometryFactory fact)

Converts an array of coordinates to a line or point, as appropriate.

Parameters:

coords - the coordinates of a line or point

fact - a factory used to create the Geometry

Returns:

a line if there is more than one coordinate; a point if there is just one coordinate; an empty point otherwise

equals

public static boolean equals(com.vividsolutions.jts.geom.Coordinate[] coord1,
                             com.vividsolutions.jts.geom.Coordinate[] coord2)

fromCoordinateArrays

public static List fromCoordinateArrays(List coordArrays,
                                        com.vividsolutions.jts.geom.GeometryFactory fact)

Converts a collection of coordinate arrays to a collection of geometries.

Parameters:

coordArrays - a collection of Coordinate[]

fact - a factory used to create the Geometries

Returns:

a collection of LineStrings and Points

addCoordinateArrays

public static void addCoordinateArrays(com.vividsolutions.jts.geom.Geometry g,
                                       boolean orientPolygons,
                                       List coordArrayList)

Extract the coordinate arrays for a geometry into a List.

Parameters:

g - the Geometry to extract from

coordArrayList - the List to add the coordinate arrays to

orientPolygons - whether or not the arrays in the List should be oriented (clockwise for the shell, counterclockwise for the holes)

ensureOrientation

public static com.vividsolutions.jts.geom.Coordinate[] ensureOrientation(com.vividsolutions.jts.geom.Coordinate[] coord,
                                                                         int desiredOrientation)

Sets the orientation of an array of coordinates.

Parameters:

coord - the coordinates to inspect

desiredOrientation - CGAlgorithms.CLOCKWISE or CGAlgorithms.COUNTERCLOCKWISE

Returns:

a new array with entries in reverse order, if the orientation is incorrect; otherwise, the original array

toCoordinateArrays

public static List toCoordinateArrays(com.vividsolutions.jts.geom.Geometry g,
                                      boolean orientPolygons)

Extract the coordinate arrays for a geometry. Polygons will be checked to ensure their rings are oriented correctly. Note: coordinates from Points or MultiPoints will not be extracted.

Parameters:

g - the Geometry to extract from

orientPolygons - ensure that Polygons are correctly oriented

Returns:

a list of Coordinate[]