org.openstreetmap.josm.data.projection.datum
Interface Datum

All Known Implementing Classes:

AbstractDatum, CentricDatum, GRS80Datum, NTV2Datum, NullDatum, SevenParameterDatum, ThreeParameterDatum, WGS84Datum

public interface Datum

Represents a geodetic datum. Basically it provides conversion functions from and to the WGS84 datum.

Method Summary

LatLon	fromWGS84(LatLon ll) Convert lat/lon from WGS84 to this datum.
Ellipsoid	getEllipsoid()
java.lang.String	getName()
java.lang.String	getProj4Id()
LatLon	toWGS84(LatLon ll) Convert lat/lon from this datum to WGS84 datum.

Method Detail

getName

java.lang.String getName()

Returns:

a human readable name of this projection

getProj4Id

java.lang.String getProj4Id()

Returns:

the Proj.4 identifier (as reported by cs2cs -ld) If no id exists, return null.

getEllipsoid

Ellipsoid getEllipsoid()

Returns:

the ellipsoid associated with this datum

toWGS84

LatLon toWGS84(LatLon ll)

Convert lat/lon from this datum to WGS84 datum.

fromWGS84

LatLon fromWGS84(LatLon ll)

Convert lat/lon from WGS84 to this datum.