Package org.geolatte.geom.crs

Class CrsRegistry

java.lang.Object

org.geolatte.geom.crs.CrsRegistry

public class CrsRegistry
extends Object

A repository for CoordinateReferenceSystems.

Currently, the registry is limited to EPSG-defined coordinate reference systems.

Author:

Karel Maesen, Geovise BVBA creation-date: 8/2/11

Constructor Summary

Constructors

Constructor	Description
CrsRegistry()

Method Summary

Modifier and Type	Method	Description
static CoordinateReferenceSystem<?>	computeIfAbsent(CrsId crsId, Function<? super CrsId,? extends CoordinateReferenceSystem<? extends Position>> buildCrs)	Returns the registered coordinate reference system, or when unavailable in the registry, create a new reference system and register it on-the-fly.
static CoordinateReferenceSystem<?>	getCoordinateReferenceSystem(CrsId crsId, CoordinateReferenceSystem<?> fallback)	returns the CoordinateReferenceSystem for the specified CrsId
static CoordinateReferenceSystem<?>	getCoordinateReferenceSystemForEPSG(int epsgCode, CoordinateReferenceSystem<?> fallback)	returns the CoordinateReferenceSystem for the specified EPSG code.
static CrsId	getCrsIdForEPSG(int epsgCode)	Returns the CrsId for the specified EPSG Code.
static Geographic2DCoordinateReferenceSystem	getGeographicCoordinateReferenceSystemForEPSG(int epsgCode)
static ProjectedCoordinateReferenceSystem	getProjectedCoordinateReferenceSystemForEPSG(int epsgCode)
static boolean	hasCoordinateReferenceSystemForEPSG(int epsgCode)	Determine if the registry contains the CoordinateReferenceSystem identified by its SRID
static CoordinateReferenceSystem<?>	ifAbsentReturnGeographic2D(int epsgCode)	Returns the registered coordinate reference system, or when unavailable in the registry, create a new Geographic 2D system and register this on-the-fly.
static CoordinateReferenceSystem<?>	ifAbsentReturnProjected2D(int epsgCode)	Returns the registered coordinate reference system, or when unavailable in the registry, create a new Projected 2D system and register this on-the-fly.
static void	registerCoordinateReferenceSystem(CoordinateReferenceSystem<?> crs)	Registers a CoordinateReferenceSystem in the registry.
static void	registerCoordinateReferenceSystem(CrsId id, CoordinateReferenceSystem<?> crs)	Registers a CoordinateReferenceSystem in the registry under the specified (pseudo-)EPSG code.

Methods inherited from class java.lang.Object

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

Constructor Detail

CrsRegistry

public CrsRegistry()

Method Detail

getCoordinateReferenceSystemForEPSG

public static CoordinateReferenceSystem<?> getCoordinateReferenceSystemForEPSG(int epsgCode,
                                                                               CoordinateReferenceSystem<?> fallback)

returns the CoordinateReferenceSystem for the specified EPSG code.

Parameters:

epsgCode - the EPSG code

fallback - the coordinate

Returns:

the CoordinateReferenceSystem corresponding to the specified EPSG code, or null if no such system is registered.

getCoordinateReferenceSystem

public static CoordinateReferenceSystem<?> getCoordinateReferenceSystem(CrsId crsId,
                                                                        CoordinateReferenceSystem<?> fallback)

returns the CoordinateReferenceSystem for the specified CrsId

Parameters:

crsId - the identifier for the Coordinate Reference System

fallback - the coordinate

Returns:

the CoordinateReferenceSystem corresponding to the specified EPSG code, or null if no such system is registered.

ifAbsentReturnProjected2D

public static CoordinateReferenceSystem<?> ifAbsentReturnProjected2D(int epsgCode)

Returns the registered coordinate reference system, or when unavailable in the registry, create a new Projected 2D system and register this on-the-fly.

Parameters:

epsgCode - the code to look up

Returns:

a CoordinateReferenceSystem with the specified epsg code

ifAbsentReturnGeographic2D

public static CoordinateReferenceSystem<?> ifAbsentReturnGeographic2D(int epsgCode)

Returns the registered coordinate reference system, or when unavailable in the registry, create a new Geographic 2D system and register this on-the-fly.

Parameters:

epsgCode - the code to look up

Returns:

a CoordinateReferenceSystem with the specified epsg code

computeIfAbsent

public static CoordinateReferenceSystem<?> computeIfAbsent(CrsId crsId,
                                                           Function<? super CrsId,? extends CoordinateReferenceSystem<? extends Position>> buildCrs)

Returns the registered coordinate reference system, or when unavailable in the registry, create a new reference system and register it on-the-fly.

Parameters:

crsId - the CrsId for the Coordinate reference system

buildCrs - the function that builds a new Coordinate Reference System, if none is available in this Registry

Returns:

the current (existing or computed) coordinate reference system identified by the specified CrsId identifier

registerCoordinateReferenceSystem

public static void registerCoordinateReferenceSystem(CoordinateReferenceSystem<?> crs)

Registers a CoordinateReferenceSystem in the registry.

Parameters:

crs - the CoordinateReferenceSystem to register

registerCoordinateReferenceSystem

public static void registerCoordinateReferenceSystem(CrsId id,
                                                     CoordinateReferenceSystem<?> crs)

Registers a CoordinateReferenceSystem in the registry under the specified (pseudo-)EPSG code.

Parameters:

id - the CrsId under which to register this CoordinateReferenceSystem

crs - the CoordinateReferenceSystem to register

hasCoordinateReferenceSystemForEPSG

public static boolean hasCoordinateReferenceSystemForEPSG(int epsgCode)

Determine if the registry contains the CoordinateReferenceSystem identified by its SRID

Parameters:

epsgCode - the SRID to look up

Returns:

true iff the registry has a corresponding CoordinateReferenceSystem

getGeographicCoordinateReferenceSystemForEPSG

public static Geographic2DCoordinateReferenceSystem getGeographicCoordinateReferenceSystemForEPSG(int epsgCode)

getProjectedCoordinateReferenceSystemForEPSG

public static ProjectedCoordinateReferenceSystem getProjectedCoordinateReferenceSystemForEPSG(int epsgCode)

getCrsIdForEPSG

public static CrsId getCrsIdForEPSG(int epsgCode)

Returns the CrsId for the specified EPSG Code.

Parameters:

epsgCode - the EPSG code

Returns:

the CrsId corresponding to the specified EPSG code, or null if no such system is registered.