org.h2gis.h2spatial.internal.function.spatial.predicates
Class ST_Relate

java.lang.Object
  org.h2gis.h2spatialapi.AbstractFunction
      org.h2gis.h2spatialapi.DeterministicScalarFunction
          org.h2gis.h2spatial.internal.function.spatial.predicates.ST_Relate

All Implemented Interfaces:

Function, ScalarFunction

public class ST_Relate
extends DeterministicScalarFunction

This function is used to compute the relation between two geometries, as described in the SFS specification. It can be used in two ways. First, if it is given two geometries,it returns a 9-character String representation of the 2 geometries IntersectionMatrix. If it is given two geometries and a IntersectionMatrix representation, it will return a boolean : true it the two geometries' IntersectionMatrix match the given one, false otherwise.

Author:

Nicolas Fortin

Field Summary

Fields inherited from interface org.h2gis.h2spatialapi.ScalarFunction

PROP_DETERMINISTIC, PROP_NOBUFFER

Fields inherited from interface org.h2gis.h2spatialapi.Function

PROP_NAME, PROP_REMARKS

Constructor Summary

ST_Relate()
Default constructor

Method Summary

String	getJavaStaticMethod()
static String	relate(com.vividsolutions.jts.geom.Geometry a, com.vividsolutions.jts.geom.Geometry b)
static Boolean	relate(com.vividsolutions.jts.geom.Geometry a, com.vividsolutions.jts.geom.Geometry b, String iMatrix)

Methods inherited from class org.h2gis.h2spatialapi.AbstractFunction

addProperty, getProperty, removeProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.h2gis.h2spatialapi.Function

getProperty

Constructor Detail

ST_Relate

public ST_Relate()

Default constructor

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

relate

public static String relate(com.vividsolutions.jts.geom.Geometry a,
                            com.vividsolutions.jts.geom.Geometry b)

Parameters:

a - Geometry Geometry.

b - Geometry instance

Returns:

9-character String representation of the 2 geometries IntersectionMatrix

relate

public static Boolean relate(com.vividsolutions.jts.geom.Geometry a,
                             com.vividsolutions.jts.geom.Geometry b,
                             String iMatrix)

Parameters:

a - Geometry instance

b - Geometry instance

iMatrix - IntersectionMatrix representation

Returns:

true it the two geometries' IntersectionMatrix match the given one, false otherwise.