Package org.h2gis.functions.spatial.buffer

Class ST_Buffer

java.lang.Object
org.h2gis.api.AbstractFunction
org.h2gis.api.DeterministicScalarFunction
org.h2gis.functions.spatial.buffer.ST_Buffer
All Implemented Interfaces:
org.h2gis.api.Function, org.h2gis.api.ScalarFunction
public class ST_Buffer extends org.h2gis.api.DeterministicScalarFunction
ST_Buffer computes a buffer around a Geometry. Circular arcs are approximated using 8 segments per quadrant. In particular, circles contain 32 line segments.
Author:
Nicolas Fortin, 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_Buffer()
    Default constructor

  • Method Summary

    Modifier and Type
    Method
    Description
    static org.locationtech.jts.geom.Geometry
    buffer(org.locationtech.jts.geom.Geometry geom, Double distance)
     
    static org.locationtech.jts.geom.Geometry
    buffer(org.locationtech.jts.geom.Geometry geom, Double distance, org.h2.value.Value value)
     
    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_Buffer

      public ST_Buffer()
      Default constructor

  • Method Details

    • getJavaStaticMethod

      public String getJavaStaticMethod()

    • buffer

      public static org.locationtech.jts.geom.Geometry buffer(org.locationtech.jts.geom.Geometry geom, Double distance)
      Parameters:
      geom - Geometry instance
      distance - Buffer width in projection unit
      Returns:
      geom buffer around geom geometry.

    • buffer

      public static org.locationtech.jts.geom.Geometry buffer(org.locationtech.jts.geom.Geometry geom, Double distance, org.h2.value.Value value) throws IllegalArgumentException
      Parameters:
      geom - Geometry instance
      distance - Buffer width in projection unit
      value - Int or varchar end type
      Returns:
      a buffer around a geometry.
      Throws:
      IllegalArgumentException