POSC Specifications: Epicentre Version 3.0 Logical Data Model

GEOGRAPHIC_3D_COORD_SYSTEM (Local) (C112, C148, C151)

(Rules) (Express)

A curvilinear 3D coordinate system based upon a geodetic datum. This left-handed coordinate system is defined by the orthogonal axes of latitude, longitude and ellipsoidal height. The latitude of a point is specified as an angle between the equatorial plane and a suitably chosen line thorough the point. The longitude of a point is specified as an angle between the local meridian of the point and the chosen reference meridian, measured in the equatorial plane. The height is the distance between a point and a vertical datum, such as the ellipsoidal surface associated with the geodetic datum.


Local rules:

Supertype path(s):

Entity consolidated into table COORDINATE_SYSTEM.

Referenced in Diagrams:


Generated on Tue Jul 10 15:42:44 2001
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