Package org.h2gis.functions.spatial.create

Class ST_GeneratePointsInGrid

java.lang.Object
org.h2gis.api.AbstractFunction
org.h2gis.api.DeterministicScalarFunction
org.h2gis.functions.spatial.create.ST_GeneratePointsInGrid
All Implemented Interfaces:
org.h2gis.api.Function, org.h2gis.api.ScalarFunction
public class ST_GeneratePointsInGrid extends org.h2gis.api.DeterministicScalarFunction
This function is used to generate pseudo-random points until the requested number are found within the input area (polygon or multipolygon)
Author:
Erwan Bocher, CNRS

  • 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_GeneratePointsInGrid()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static org.locationtech.jts.geom.Geometry
    generatePointsInGrid(org.locationtech.jts.geom.Geometry geom, int cellSizeX, int cellSizeY)
     
    static org.locationtech.jts.geom.Geometry
    generatePointsInGrid(org.locationtech.jts.geom.Geometry geom, int cellSizeX, int cellSizeY, boolean useMask)
    Make a regular distribution of points
    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 Details

    • ST_GeneratePointsInGrid

      public ST_GeneratePointsInGrid()

  • Method Details

    • getJavaStaticMethod

      public String getJavaStaticMethod()

    • generatePointsInGrid

      public static org.locationtech.jts.geom.Geometry generatePointsInGrid(org.locationtech.jts.geom.Geometry geom, int cellSizeX, int cellSizeY) throws SQLException
      Throws:
      SQLException

    • generatePointsInGrid

      public static org.locationtech.jts.geom.Geometry generatePointsInGrid(org.locationtech.jts.geom.Geometry geom, int cellSizeX, int cellSizeY, boolean useMask) throws SQLException
      Make a regular distribution of points
      Parameters:
      geom - input geometry as polygon or multipolygon
      cellSizeX - size of the x cell
      cellSizeY - size of the y cell
      useMask - set to true to keep the points loacted inside the input geometry
      Returns:
      a regular distribution of points as multipoint
      Throws:
      SQLException