org.geolatte.geom.crs

Class CrsRegistry

java.lang.Object

org.geolatte.geom.crs.CrsRegistry

public class CrsRegistry
extends java.lang.Object

A repository for CoordinateReferenceSystems.

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

Field Summary

Fields

Modifier and Type	Field and Description
private static java.util.Map<java.lang.Integer,CrsId>	crsIdMap
private static java.util.concurrent.ConcurrentHashMap<java.lang.Integer,CoordinateReferenceSystem<? extends Position>>	crsMap
private static java.lang.String	DELIM
private static org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor and Description
CrsRegistry()

Method Summary

Modifier and Type	Method and Description
private static void	addDefinition(java.lang.String line, CrsWktDecoder decoder)
private static java.io.BufferedReader	createReader()
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<?>	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.
private static void	loadCRS()
static void	registerCoordinateReferenceSystem(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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

crsMap

private static final java.util.concurrent.ConcurrentHashMap<java.lang.Integer,CoordinateReferenceSystem<? extends Position>> crsMap

crsIdMap

private static final java.util.Map<java.lang.Integer,CrsId> crsIdMap

DELIM

private static final java.lang.String DELIM

See Also:

Constant Field Values

Constructor Detail

CrsRegistry

public CrsRegistry()

Method Detail

loadCRS

private static void loadCRS()
                     throws java.io.IOException

Throws:

java.io.IOException

createReader

private static java.io.BufferedReader createReader()

addDefinition

private static void addDefinition(java.lang.String line,
                                  CrsWktDecoder decoder)

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.

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

registerCoordinateReferenceSystem

public static void registerCoordinateReferenceSystem(CoordinateReferenceSystem<?> crs)

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

Parameters:

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.