ucar.unidata.geoloc
Class EarthEllipsoid

java.lang.Object
  ucar.unidata.geoloc.Earth
      ucar.unidata.geoloc.EarthEllipsoid

public final class EarthEllipsoid
extends Earth

Type-safe enumeration of Earth Ellipsoids. Follows EPSG.

Author:

john caron

See Also:

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

Field Summary

static EarthEllipsoid	Airy1830 Airy 1830 ellipsoid from EPSG database version 6.14.
static EarthEllipsoid	WGS84 Ellipsoid for WGS84 (edavis - correct 1/f as per EPSG database ver 6.14)

Constructor Summary

protected

EarthEllipsoid(java.lang.String name, int epsgId, double a, double f) Constructor.

Method Summary

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

Methods inherited from class ucar.unidata.geoloc.Earth

getEccentricity, getFlattening, getMajor, getMinor, getRadius

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.

Constructor Detail

EarthEllipsoid

protected EarthEllipsoid(java.lang.String name,
                         int epsgId,
                         double a,
                         double f)

Constructor.

Parameters:

name - EPSG name

epsgId - EPSG id

a - semimajor (equatorial) radius, in meters.

f - flattening.

Method Detail

getAll

public static java.util.Collection<EarthEllipsoid> getAll()

get a collection of all defined EarthEllipsoid objects

Returns:

all defined EarthEllipsoid objects

getType

public static EarthEllipsoid getType(java.lang.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 java.lang.String getName()

EPSG name

Returns:

the EPSG name

getEpsgId

public int getEpsgId()

EPSG id

Returns:

the EPSG id

toString

public java.lang.String toString()

Same as EPSG name

Overrides:

toString in class java.lang.Object

Returns:

the EPSG name

hashCode

public int hashCode()

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

Overrides:

hashCode in class java.lang.Object

Returns:

hashCode

equals

public boolean equals(java.lang.Object o)

Objects with same name are equal.

Overrides:

equals in class java.lang.Object

Parameters:

o - test this for equals

Returns:

+,0,-