Datum implementation. An explanation for this package is provided in the OpenGIS® javadoc. The remaining discussion on this page is specific to the Geotools implementation.
Extensions to OpenGIS API
Convenience methods were added to the default ellipsoid class in order to compute orthodromic distance.
Class Summary Class Description AbstractDatumSpecifies the relationship of a coordinate system to the earth, thus creating a coordinate reference system. BursaWolfParametersParameters for a geographic transformation between two datum. DefaultEllipsoidGeometric figure that can be used to describe the approximate shape of the earth. DefaultEngineeringDatumDefines the origin of an engineering coordinate reference system. DefaultGeodeticDatumDefines the location and precise orientation in 3-dimensional space of a defined ellipsoid (or sphere) that approximates the shape of the earth. DefaultImageDatumDefines the origin of an image coordinate reference system. DefaultPrimeMeridianA prime meridian defines the origin from which longitude values are determined. DefaultTemporalDatumA temporal datum defines the origin of a temporal coordinate reference system. DefaultVerticalDatumA textual description and/or a set of parameters identifying a particular reference level surface used as a zero-height surface.