POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
VERTICAL_DATUM
(* Open *)
SUBTYPE OF
(
datum
);
datum_kind :
ref_vertical_datum
;
INVERSE
vertical_coordinate_system :
SET [0:?] OF
vertical_coordinate_system
FOR
vertical_datum;
UNIQUE
si:
technical_reference
.identifier;
END_ENTITY
; (* vertical_datum *)
Generated on Tue Jul 10 19:39:17 2001
© Copyright 2001 POSC. All rights reserved.