Package org.h2gis.functions.spatial.mesh

Class 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.Function

        PROP_NAME, PROP_REMARKS

      • Fields inherited from interface org.h2gis.api.ScalarFunction

        PROP_DETERMINISTIC

    • Constructor Summary

      Constructors 
      Constructor Description
      ST_Delaunay()  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method 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 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