org.h2gis.functions.spatial.mesh

Class ST_Delaunay

java.lang.Object

org.h2gis.api.AbstractFunction

org.h2gis.api.DeterministicScalarFunction

org.h2gis.functions.spatial.mesh.ST_Delaunay

All Implemented Interfaces:

org.h2gis.api.Function, org.h2gis.api.ScalarFunction

public class ST_Delaunay
extends org.h2gis.api.DeterministicScalarFunction

Returns polygons that represent a Delaunay triangulation constructed from a collection of points. Note that the triangulation doesn't compute the intersections between lines; it takes only existing coordinates.

Author:

Erwan Bocher

Field Summary

Fields inherited from interface org.h2gis.api.ScalarFunction

PROP_DETERMINISTIC, PROP_NOBUFFER

Fields inherited from interface org.h2gis.api.Function

PROP_NAME, PROP_REMARKS

Constructor Summary

Constructors

Constructor and Description
ST_Delaunay()

Method Summary

Modifier and Type	Method and Description
static org.locationtech.jts.geom.GeometryCollection	createDT(org.locationtech.jts.geom.Geometry geometry) Build a delaunay triangulation based on all coordinates of the geometry
static org.locationtech.jts.geom.GeometryCollection	createDT(org.locationtech.jts.geom.Geometry geometry, int flag) Build a delaunay triangulation based on all coordinates of the geometry
String	getJavaStaticMethod()

Methods inherited from class org.h2gis.api.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.api.Function

getProperty

Constructor Detail

ST_Delaunay

public ST_Delaunay()

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

createDT

public static org.locationtech.jts.geom.GeometryCollection createDT(org.locationtech.jts.geom.Geometry geometry)
                                                             throws SQLException

Build a delaunay triangulation based on all coordinates of the geometry

Parameters:

geometry -

Returns:

a set of polygons (triangles)

Throws:

SQLException

createDT

public static org.locationtech.jts.geom.GeometryCollection createDT(org.locationtech.jts.geom.Geometry geometry,
                                                                    int flag)
                                                             throws SQLException

Build a delaunay triangulation based on all coordinates of the geometry

Parameters:

geometry -

flag - for flag=0 (default flag) or a MULTILINESTRING for flag=1

Returns:

a set of polygons (triangles)

Throws:

SQLException