Package ucar.unidata.geoloc

Class EarthEllipsoid

java.lang.Object

ucar.unidata.geoloc.Earth

ucar.unidata.geoloc.EarthEllipsoid

All Implemented Interfaces:

Serializable

@Immutable
public class EarthEllipsoid
extends Earth

Type-safe enumeration of Earth Ellipsoids. Follows EPSG.

See Also:

http://www.epsg.org/, "http://www.epsg.org/", Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static EarthEllipsoid	Airy1830	Airy 1830 ellipsoid from EPSG database version 6.14.
static EarthEllipsoid	IAG_GRS80
static EarthEllipsoid	IAU
static EarthEllipsoid	WGS84	Ellipsoid for WGS84 (edavis - correct 1/f as per EPSG database ver 6.14)

Fields inherited from class ucar.unidata.geoloc.Earth

DEFAULT, eccentricity, eccentricitySquared, equatorRadius, flattening, name, poleRadius, WGS84_EARTH_RADIUS_KM, WGS84_EARTH_RADIUS_METERS

Constructor Summary

Constructors

Constructor	Description
EarthEllipsoid(String name, int epsgId, double a, double b, double invF)	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)	Objects with same name are equal.
static Collection<EarthEllipsoid>	getAll()	get a collection of all defined EarthEllipsoid objects
int	getEpsgId()	EPSG id
String	getName()	EPSG name
static EarthEllipsoid	getType(int epsgId)	Find the EarthEllipsoid that matches this EPSG Id.
static EarthEllipsoid	getType(String name)	Find the EarthEllipsoid that matches this name.
int	hashCode()	Override Object.hashCode() to be consistent with this equals.
String	toString()	Same as EPSG name

Methods inherited from class ucar.unidata.geoloc.Earth

getEccentricity, getEccentricitySquared, getEquatorRadius, getFlattening, getMajor, getMinor, getPoleRadius, getRadius, isSpherical

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

WGS84

public static final EarthEllipsoid WGS84

Ellipsoid for WGS84 (edavis - correct 1/f as per EPSG database ver 6.14)

Airy1830

public static final EarthEllipsoid Airy1830

Airy 1830 ellipsoid from EPSG database version 6.14.

IAU

public static final EarthEllipsoid IAU

IAG_GRS80

public static final EarthEllipsoid IAG_GRS80

Constructor Detail

EarthEllipsoid

public EarthEllipsoid(String name,
                      int epsgId,
                      double a,
                      double b,
                      double invF)

Constructor.

Parameters:

name - EPSG name

epsgId - EPSG id

a - semimajor (equatorial) radius, in meters.

b - semiminor (polar) radius, in meters.

invF - inverse flattening.

Method Detail

getAll

public static Collection<EarthEllipsoid> getAll()

get a collection of all defined EarthEllipsoid objects

Returns:

all defined EarthEllipsoid objects

getType

public static EarthEllipsoid getType(String name)

Find the EarthEllipsoid that matches this name.

Parameters:

name - : name to match

Returns:

EarthEllipsoid or null if no match.

getType

public static EarthEllipsoid getType(int epsgId)

Find the EarthEllipsoid that matches this EPSG Id.

Parameters:

epsgId - : epsg Id to match

Returns:

EarthEllipsoid or null if no match.

getName

public String getName()

EPSG name

Overrides:

getName in class Earth

Returns:

the EPSG name

getEpsgId

public int getEpsgId()

EPSG id

Returns:

the EPSG id

toString

public String toString()

Same as EPSG name

Overrides:

toString in class Earth

Returns:

the EPSG name

hashCode

public int hashCode()

Override Object.hashCode() to be consistent with this equals.

Overrides:

hashCode in class Earth

Returns:

hashCode

equals

public boolean equals(Object o)

Objects with same name are equal.

Overrides:

equals in class Earth

Parameters:

o - test this for equals

Returns:

+,0,-