POSC Specifications: Epicentre Version 3.0 Logical Data Model

GEOGRAPHIC_2D_COORD_SYSTEM (Open) (C112, C148)

(Rules) (Express)

A curvilinear 2D coordinate system based upon a geodetic datum. This left-handed coordinate system is defined by the orthogonal axes of latitude and longitude. 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.


Local rules:

Supertype path(s):

Entity consolidated into table COORDINATE_SYSTEM.

Referenced in Diagrams:


Generated on Tue Jul 10 15:42:43 2001
© Copyright 2001 POSC. All rights reserved.