org.openjump.core.attributeoperations

Class SpatialRelationOp

java.lang.Object

org.openjump.core.attributeoperations.SpatialRelationOp

public class SpatialRelationOp
extends java.lang.Object

contains some method to extract sets of features which fullfill some spatial criterion

notes:

- use "intersects" only for polygon geometries (condition intersection area > 0).

- "contains" can be used for polygons and points (centroid from polygon is calculated)

Field Summary

Fields

Modifier and Type	Field and Description
static int	CONTAINS
static int	COVEREDBY
static int	INTERSECTS

Constructor Summary

Constructors

Constructor and Description
SpatialRelationOp()

Method Summary

Methods

Modifier and Type	Method and Description
static java.util.List	evaluateSpatial(int spatialRelation, com.vividsolutions.jts.index.quadtree.Quadtree featureTree, com.vividsolutions.jts.geom.Geometry g, double radius) note: if input feature is point and spatial attribute is "intersect" or "covered by" the candidate features are selected from a 10.0m radius
static java.lang.String	getName(int spatialRel)

Methods inherited from class java.lang.Object

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

Field Detail

CONTAINS

public static final int CONTAINS

See Also:

Constant Field Values

INTERSECTS

public static final int INTERSECTS

See Also:

Constant Field Values

COVEREDBY

public static final int COVEREDBY

See Also:

Constant Field Values

Constructor Detail

SpatialRelationOp

public SpatialRelationOp()

Method Detail

getName

public static java.lang.String getName(int spatialRel)

evaluateSpatial

public static java.util.List evaluateSpatial(int spatialRelation,
                             com.vividsolutions.jts.index.quadtree.Quadtree featureTree,
                             com.vividsolutions.jts.geom.Geometry g,
                             double radius)

note: if input feature is point and spatial attribute is "intersect" or "covered by" the candidate features are selected from a 10.0m radius

Parameters:

spatialRelation -

featureTree -

g -

radius -

Returns:

ArrayList of Feature fullfilling the spatial criterion