org.h2gis.h2spatialext.function.spatial.mesh
Class ST_ConstrainedDelaunay

java.lang.Object
  org.h2gis.h2spatialapi.AbstractFunction
      org.h2gis.h2spatialapi.DeterministicScalarFunction
          org.h2gis.h2spatialext.function.spatial.mesh.ST_ConstrainedDelaunay

All Implemented Interfaces:

Function, ScalarFunction

public class ST_ConstrainedDelaunay
extends DeterministicScalarFunction

Returns polygons or lines that represent a Delaunay triangulation constructed from a geometry. Note that the triangulation computes the intersections between lines.

Author:

Erwan Bocher

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_ConstrainedDelaunay()

Method Summary

static com.vividsolutions.jts.geom.GeometryCollection	createCDT(com.vividsolutions.jts.geom.Geometry geometry) Build a constrained delaunay triangulation based on a geometry (point, line, polygon)
static com.vividsolutions.jts.geom.GeometryCollection	createCDT(com.vividsolutions.jts.geom.Geometry geometry, int flag) Build a constrained delaunay triangulation based on a geometry (point, line, polygon)
static com.vividsolutions.jts.geom.GeometryCollection	createCDT(com.vividsolutions.jts.geom.Geometry geometry, int flag, double qualityRefinement) Build a delaunay constrained delaunay triangulation based on a geometry (point, line, polygon)
String	getJavaStaticMethod()

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_ConstrainedDelaunay

public ST_ConstrainedDelaunay()

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

createCDT

public static com.vividsolutions.jts.geom.GeometryCollection createCDT(com.vividsolutions.jts.geom.Geometry geometry)
                                                                throws SQLException,
                                                                       org.jdelaunay.delaunay.error.DelaunayError

Build a constrained delaunay triangulation based on a geometry (point, line, polygon)

Parameters:

geometry -

Returns:

a set of polygons (triangles)

Throws:

SQLException,DelaunayError

org.jdelaunay.delaunay.error.DelaunayError

SQLException

createCDT

public static com.vividsolutions.jts.geom.GeometryCollection createCDT(com.vividsolutions.jts.geom.Geometry geometry,
                                                                       int flag)
                                                                throws SQLException,
                                                                       org.jdelaunay.delaunay.error.DelaunayError

Build a constrained delaunay triangulation based on a geometry (point, line, polygon)

Parameters:

geometry -

flag -

Returns:

a set of polygons (triangles)

Throws:

SQLException, - DelaunayError

org.jdelaunay.delaunay.error.DelaunayError

SQLException

createCDT

public static com.vividsolutions.jts.geom.GeometryCollection createCDT(com.vividsolutions.jts.geom.Geometry geometry,
                                                                       int flag,
                                                                       double qualityRefinement)
                                                                throws SQLException,
                                                                       org.jdelaunay.delaunay.error.DelaunayError

Build a delaunay constrained delaunay triangulation based on a geometry (point, line, polygon)

Parameters:

geometry -

flag -

qualityRefinement -

Returns:

Output is a COLLECTION of polygons (for flag=0) or a MULTILINESTRING (for flag=1)

Throws:

SQLException, - DelaunayError

org.jdelaunay.delaunay.error.DelaunayError

SQLException