POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
GEODETIC_TRANSFORMATION
ABSTRACT SUPERTYPE OF
(
ONEOF
(
concatenated_transformation
,
single_transformation
))
SUBTYPE OF
(
coordinate_transformation
);
source_coordinate_system :
simple_coordinate_system
;
target_coordinate_system :
simple_coordinate_system
;
UNIQUE
si:
technical_reference
.identifier, source_coordinate_system, target_coordinate_system;
WHERE
dri: target_coordinate_system :<>: source_coordinate_system;
END_ENTITY
; (* geodetic_transformation *)
Generated on Tue Jul 10 19:37:55 2001
© Copyright 2001 POSC. All rights reserved.