org.geotools.coverage.util

Class IntersectUtils

Object

IntersectUtils

public class IntersectUtils
extends Object

Performs some naive intersections on GeometryCollections, because JTS is not supporting them.

Author:

Emanuele Tajariol (GeoSolutions)

Constructor Summary

Constructors

Constructor and Description
IntersectUtils()

Method Summary

Modifier and Type	Method and Description
static Geometry	intersection(Geometry g1, Geometry g2) Return the intersection of two Geometries.
static boolean	intersects(Geometry g1, Geometry g2) Tests whether the two geometries intersect.
static Geometry	unrollGeometries(Geometry geometry) Flatten all first-level (i.e. non recursively) bundles (GeometryCollections and MultiPolygons) into a GeometryCollection.

Methods inherited from class Object

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

Constructor Detail

IntersectUtils

public IntersectUtils()

Method Detail

intersects

public static boolean intersects(Geometry g1,
                                 Geometry g2)

Tests whether the two geometries intersect.

This method relies completely on Geometry.intersects(Geometry) but also tries to unroll GeometryCollections.

Parameters:

g1 -

g2 -

Returns:

true if the two geometries intersect.

intersection

public static Geometry intersection(Geometry g1,
                                    Geometry g2)

Return the intersection of two Geometries.
This method relies completely on Geometry.intersection(Geometry) but also tries to unroll GeometryCollections.

Parameters:

g1 -

g2 -

Returns:

true if the two geometries intersect.

unrollGeometries

public static Geometry unrollGeometries(Geometry geometry)
                                 throws IllegalArgumentException

Flatten all first-level (i.e. non recursively) bundles (GeometryCollections and MultiPolygons) into a GeometryCollection.
Valid structures:

• null -> null
• Polygon -> Polygon
• MultiPolygon -> GeometryCollection of Polygons
• GeometryCollection holding Polygons and MultiPolygons -> GeometryCollection of Polygons

Parameters:

geometry -

Returns:

Throws:

IllegalArgumentException - when encountering illegal Geometries; message is the Geometry class name.