org.h2.util.geometry

类 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.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	EWKTUtils.EWKTTarget Converter output target that writes a EWKT.

方法概要

限定符和类型	方法和说明
static String	ewkb2ewkt(byte[] ewkb) Converts EWKB to EWKT.
static String	ewkb2ewkt(byte[] ewkb, int dimensionSystem) Converts EWKB to EWKT.
static byte[]	ewkt2ewkb(String ewkt) Converts EWKT to EWKB.
static byte[]	ewkt2ewkb(String ewkt, int dimensionSystem) Converts EWKT to EWKB.
static StringBuilder	formatGeometryTypeAndDimensionSystem(StringBuilder builder, int type) Formats type and dimension system as a string.
static int	getDimensionSystem(String ewkt) Reads the dimension system from EWKT.
static int	parseDimensionSystem(String s) Parses a dimension system from the given string.
static void	parseEWKT(String ewkt, GeometryUtils.Target target) Parses a EWKT.
static int	parseGeometryType(String s) Parses geometry type and dimension system from the given string.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

ewkb2ewkt

public static String ewkb2ewkt(byte[] ewkb)

Converts EWKB to EWKT.

参数:

ewkb - source EWKB

返回:

EWKT representation

ewkb2ewkt

public static String ewkb2ewkt(byte[] ewkb,
                               int dimensionSystem)

Converts EWKB to EWKT.

参数:

ewkb - source EWKB

dimensionSystem - dimension system

返回:

EWKT representation

ewkt2ewkb

public static byte[] ewkt2ewkb(String ewkt)

Converts EWKT to EWKB.

参数:

ewkt - source EWKT

返回:

EWKB representation

ewkt2ewkb

public static byte[] ewkt2ewkb(String ewkt,
                               int dimensionSystem)

Converts EWKT to EWKB.

参数:

ewkt - source EWKT

dimensionSystem - dimension system

返回:

EWKB representation

parseEWKT

public static void parseEWKT(String ewkt,
                             GeometryUtils.Target target)

Parses a EWKT.

参数:

ewkt - source EWKT

target - output target

parseGeometryType

public static int parseGeometryType(String s)

Parses geometry type and dimension system from the given string.

参数:

s - string to parse

返回:

geometry type and dimension system in OGC geometry code format (type + dimensionSystem * 1000)

抛出:

IllegalArgumentException - if input is not valid

parseDimensionSystem

public static int parseDimensionSystem(String s)

Parses a dimension system from the given string.

参数:

s - string to parse

返回:

dimension system, one of XYZ, XYM, or XYZM

抛出:

IllegalArgumentException - if input is not valid

另请参阅:

GeometryUtils.DIMENSION_SYSTEM_XYZ, GeometryUtils.DIMENSION_SYSTEM_XYM, GeometryUtils.DIMENSION_SYSTEM_XYZM

formatGeometryTypeAndDimensionSystem

public static StringBuilder formatGeometryTypeAndDimensionSystem(StringBuilder builder,
                                                                 int type)

Formats type and dimension system as a string.

参数:

builder - string builder

type - OGC geometry code format (type + dimensionSystem * 1000)

返回:

the specified string builder

抛出:

IllegalArgumentException - if type is not valid

getDimensionSystem

public static int getDimensionSystem(String ewkt)

Reads the dimension system from EWKT.

参数:

ewkt - EWKT source

返回:

the dimension system