POSC Specifications: Epicentre Version 3.0 Logical Data Model

PTY_LOCATION (abstract) (C038, C076, C122, C127)

(Rules) (Express)

The description of the spatial geometry of a point (vertex), such as an absolute location or relative position, as required for locating activities or spatial objects in terms of sets of coordinates (e.g., latitude and longitude, x, y, z, etc.) within a coordinate system. The definition and order of ordinate values are provided by the coordinate system in which they are defined. The value of the coordinates may be optionally defined as an offset from an arbitrary vertex, or from the origin of the coordinate system if the offset vertex is not defined.


Local rules:

Supertype path(s):

Entity replicated into subtype tables (@pty_location).


Generated on Tue Jul 10 15:48:43 2001
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