org.deegree.cs.components
Class GeodeticDatum

java.lang.Object
  org.deegree.cs.CRSIdentifiable
      org.deegree.cs.components.Datum
          org.deegree.cs.components.GeodeticDatum

All Implemented Interfaces:

Object, TypedObjectNode, IDatum, IGeodeticDatum, CRSResource

public class GeodeticDatum
extends Datum
implements IGeodeticDatum

A GeodeticDatum (aka. HorizontalDatum) holds an ellipse and a prime-meridian.

Version:

$Revision: 29642 $, $Date: 2011-02-11 13:59:33 +0100 (Fri, 11 Feb 2011) $

Author:

Rutger Bezema, last edited by: $Author: lbuesching $

Field Summary

static GeodeticDatum

WGS84 The default WGS 1984 datum, with primeMeridian set to Greenwich and default (no) wgs84 conversion info.

Constructor Summary

GeodeticDatum(IEllipsoid ellipsoid, CRSCodeType code, String name)
A datum with given ellipsoid and a GreenWich prime-meridian, with no helmert.

GeodeticDatum(IEllipsoid ellipsoid, Helmert toWGS84, CRSCodeType[] codes)
A datum with given ellipsoid and a GreenWich prime-meridian.

GeodeticDatum(IEllipsoid ellipsoid, Helmert toWGS84, CRSCodeType code, String name)
A datum with given ellipsoid and a GreenWich prime-meridian.

GeodeticDatum(IEllipsoid ellipsoid, IPrimeMeridian primeMeridian, CRSResource id)

GeodeticDatum(IEllipsoid ellipsoid, IPrimeMeridian primeMeridian, Helmert toWGS84, CRSCodeType[] codes)
A datum with given ellipsoid and a prime-meridian.

GeodeticDatum(IEllipsoid ellipsoid, IPrimeMeridian primeMeridian, Helmert toWGS84, CRSCodeType[] codes, String[] names, String[] versions, String[] descriptions, String[] areasOfUse)

GeodeticDatum(IEllipsoid ellipsoid, IPrimeMeridian primeMeridian, Helmert toWGS84, CRSCodeType code, String name, String version, String description, String areaOfUse)

GeodeticDatum(IEllipsoid ellipsoid, IPrimeMeridian primeMeridian, Helmert toWGS84, CRSResource id)

Method Summary

boolean	equals(Object other)
IEllipsoid	getEllipsoid()
IPrimeMeridian	getPrimeMeridian()
Helmert	getWGS84Conversion()
int	hashCode() Implementation as proposed by Joshua Block in Effective Java (Addison-Wesley 2001), which supplies an even distribution and is relatively fast.
void	setPrimeMeridian(IPrimeMeridian primeMeridian)
void	setToWGS84(Helmert toWGS84Conversion)
String	toString()

Methods inherited from class org.deegree.cs.CRSIdentifiable

addAreaOfUse, addName, checkForNullObject, checkForNullObject, checkForNullObject, getAreaOfUse, getAreaOfUseBBox, getAreasOfUse, getCode, getCodeAndName, getCodes, getDescription, getDescriptions, getId, getName, getNames, getOrignalCodeStrings, getVersion, getVersions, hasCode, hasId, hasIdOrName, setDefaultAreaOfUse, setDefaultDescription, setDefaultId, setDefaultName, setDefaultVersion

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.deegree.cs.CRSResource

addAreaOfUse, addName, getAreaOfUse, getAreaOfUseBBox, getAreasOfUse, getCode, getCodeAndName, getCodes, getDescription, getDescriptions, getName, getNames, getOrignalCodeStrings, getVersion, getVersions, hasCode, hasId, hasIdOrName, setDefaultAreaOfUse, setDefaultDescription, setDefaultId, setDefaultName, setDefaultVersion

Methods inherited from interface org.deegree.commons.tom.Object

getId

Field Detail

WGS84

public static final GeodeticDatum WGS84

The default WGS 1984 datum, with primeMeridian set to Greenwich and default (no) wgs84 conversion info.

Constructor Detail

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     IPrimeMeridian primeMeridian,
                     Helmert toWGS84,
                     CRSResource id)

Parameters:

ellipsoid - of this datum

primeMeridian - to which this datum is defined.

toWGS84 - bursa-wolf parameters describing the transform from this datum into the wgs84 datum.

id - containing all relevant id data.

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     IPrimeMeridian primeMeridian,
                     CRSResource id)

Parameters:

ellipsoid - of this datum

primeMeridian - to which this datum is defined.

id - containing all relevant id data.

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     IPrimeMeridian primeMeridian,
                     Helmert toWGS84,
                     CRSCodeType[] codes,
                     String[] names,
                     String[] versions,
                     String[] descriptions,
                     String[] areasOfUse)

Parameters:

ellipsoid - of this datum

primeMeridian - to which this datum is defined.

toWGS84 - bursa-wolf parameters describing the transform from this datum into the wgs84 datum.

codes -

names -

versions -

descriptions -

areasOfUse -

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     Helmert toWGS84,
                     CRSCodeType[] codes)

A datum with given ellipsoid and a GreenWich prime-meridian.

Parameters:

ellipsoid - of this datum

toWGS84 - bursa-wolf parameters describing the transform from this datum into the wgs84 datum.

codes -

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     IPrimeMeridian primeMeridian,
                     Helmert toWGS84,
                     CRSCodeType[] codes)

A datum with given ellipsoid and a prime-meridian.

Parameters:

ellipsoid - of this datum

primeMeridian - to which this datum is defined.

toWGS84 - bursa-wolf parameters describing the transform from this datum into the wgs84 datum.

codes -

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     IPrimeMeridian primeMeridian,
                     Helmert toWGS84,
                     CRSCodeType code,
                     String name,
                     String version,
                     String description,
                     String areaOfUse)

Parameters:

ellipsoid - of this datum

primeMeridian - to which this datum is defined.

toWGS84 - bursa-wolf parameters describing the transform from this datum into the wgs84 datum.

code -

name -

version -

description -

areaOfUse -

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     Helmert toWGS84,
                     CRSCodeType code,
                     String name)

A datum with given ellipsoid and a GreenWich prime-meridian.

Parameters:

ellipsoid - of this datum

toWGS84 - bursa-wolf parameters describing the transform from this datum into the wgs84 datum.

code -

name -

GeodeticDatum

public GeodeticDatum(IEllipsoid ellipsoid,
                     CRSCodeType code,
                     String name)

A datum with given ellipsoid and a GreenWich prime-meridian, with no helmert.

Parameters:

ellipsoid - of this datum

code -

name -

Method Detail

getEllipsoid

public final IEllipsoid getEllipsoid()

Specified by:

getEllipsoid in interface IGeodeticDatum

Returns:

the ellipsoid.

getPrimeMeridian

public final IPrimeMeridian getPrimeMeridian()

Specified by:

getPrimeMeridian in interface IGeodeticDatum

Returns:

the primeMeridian.

setPrimeMeridian

public final void setPrimeMeridian(IPrimeMeridian primeMeridian)

Specified by:

setPrimeMeridian in interface IGeodeticDatum

Parameters:

primeMeridian -

getWGS84Conversion

public final Helmert getWGS84Conversion()

Specified by:

getWGS84Conversion in interface IGeodeticDatum

Returns:

the toWGS84Conversion information needed to convert this geodetic Datum into the geocentric WGS84 Datum.

setToWGS84

public final void setToWGS84(Helmert toWGS84Conversion)

Specified by:

setToWGS84 in interface IGeodeticDatum

Parameters:

toWGS84Conversion - the transformation to be used to convert this geodetic datum into the wgs84 datum.

equals

public boolean equals(Object other)

Overrides:

equals in class CRSIdentifiable

toString

public String toString()

Overrides:

toString in class CRSIdentifiable

hashCode

public int hashCode()

Implementation as proposed by Joshua Block in Effective Java (Addison-Wesley 2001), which supplies an even distribution and is relatively fast. It is created from field f as follows:

• boolean -- code = (f ? 0 : 1)
• byte, char, short, int -- code = (int)f
• long -- code = (int)(f ^ (f >>>32))
• float -- code = Float.floatToIntBits(f);
• double -- long l = Double.doubleToLongBits(f); code = (int)(l ^ (l >>> 32))
• all Objects, (where equals( ) calls equals( ) for this field) -- code = f.hashCode( )
• Array -- Apply above rules to each element

Combining the hash code(s) computed above: result = 37 * result + code;

Overrides:

hashCode in class CRSIdentifiable

Returns:

(int) ( result >>> 32 ) ^ (int) result;

See Also:

Object.hashCode()