POSC Specifications: Epicentre Version 3.0 Logical Data Model

RING (C004, C006)

(Rules) (Express)

A connected boundary of a single face. A face may have one or more rings, for example a polygon would require one ring while a face with a hole in it would require two rings. Rings may consist of an alternating sequence of edges and vertices in a complete circuit. Rings are also orientable but not oriented.


Local rules:

Supertype path(s):

Entity consolidated into table SPATIAL_OBJECT.

Referenced in Diagrams:


Generated on Tue Jul 10 15:53:25 2001
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