Package org.opengis.referencing.datum


package org.opengis.referencing.datum
Relationship of a Coordinate System (CS) to the Earth, another celestial body or a platform. For geodetic and vertical coordinate reference systems (CRS), the datum is known as reference frame and shall relate the coordinate system to the Earth or other celestial body. With other types of CRSs, the datum may relate the coordinate system to another physical or virtual object. It may be a moving platform such as a car. The datum itself is not time-dependent, but any transformations of the associated coordinates to an Earth-fixed or other coordinate reference system may contain time-dependent parameters.

Dynamic reference frame

If the subtype of Datum is geodetic or vertical, the frame-defining parameters may include time evolution to describe the motions of points used to define the reference frame. Then the geodetic or vertical reference frame is dynamic.
Since:
1.0
Departure from OGC/ISO standard for closer integration with the Java environment The Calendar code list is omitted because the handling of calendar systems is delegated to the java.time framework.