Package org.h2.util.geometry

Class EWKTUtils

java.lang.Object
org.h2.util.geometry.EWKTUtils
public final class EWKTUtils extends Object
EWKT format support for GEOMETRY data type.

This class provides limited support of EWKT. EWKT is based on Well-known Text Representation (WKT) from OGC 06-103r4 and includes additional PostGIS extensions. SRID support from EWKT is implemented.

  • Method Details

    • ewkb2ewkt

      public static String ewkb2ewkt(byte[] ewkb)
      Converts EWKB to EWKT.
      Parameters:
      ewkb - source EWKB
      Returns:
      EWKT representation

    • ewkb2ewkt

      public static String ewkb2ewkt(byte[] ewkb, int dimensionSystem)
      Converts EWKB to EWKT.
      Parameters:
      ewkb - source EWKB
      dimensionSystem - dimension system
      Returns:
      EWKT representation

    • ewkt2ewkb

      public static byte[] ewkt2ewkb(String ewkt)
      Converts EWKT to EWKB.
      Parameters:
      ewkt - source EWKT
      Returns:
      EWKB representation

    • ewkt2ewkb

      public static byte[] ewkt2ewkb(String ewkt, int dimensionSystem)
      Converts EWKT to EWKB.
      Parameters:
      ewkt - source EWKT
      dimensionSystem - dimension system
      Returns:
      EWKB representation

    • parseEWKT

      public static void parseEWKT(String ewkt, GeometryUtils.Target target)
      Parses a EWKT.
      Parameters:
      ewkt - source EWKT
      target - output target

    • parseGeometryType

      public static int parseGeometryType(String s)
      Parses geometry type and dimension system from the given string.
      Parameters:
      s - string to parse
      Returns:
      geometry type and dimension system in OGC geometry code format (type + dimensionSystem * 1000)
      Throws:
      IllegalArgumentException - if input is not valid

    • parseDimensionSystem

      public static int parseDimensionSystem(String s)
      Parses a dimension system from the given string.
      Parameters:
      s - string to parse
      Returns:
      dimension system, one of XYZ, XYM, or XYZM
      Throws:
      IllegalArgumentException - if input is not valid
      See Also:

    • formatGeometryTypeAndDimensionSystem

      public static StringBuilder formatGeometryTypeAndDimensionSystem(StringBuilder builder, int type)
      Formats type and dimension system as a string.
      Parameters:
      builder - string builder
      type - OGC geometry code format (type + dimensionSystem * 1000)
      Returns:
      the specified string builder
      Throws:
      IllegalArgumentException - if type is not valid

    • getDimensionSystem

      public static int getDimensionSystem(String ewkt)
      Reads the dimension system from EWKT.
      Parameters:
      ewkt - EWKT source
      Returns:
      the dimension system