POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
MAP_PROJECTION
(* Open *)
SUBTYPE OF
(
coordinate_transformation
);
transformation_method :
transformation_method
;
INVERSE
projected_2d_coordinate_system :
SET [0:?] OF
projected_2d_coordinate_system
FOR
map_projection;
UNIQUE
si:
technical_reference
.identifier;
WHERE
sri: SIZEOF(QUERY ( ctv <* parameter_value | (ctv.parameter_usage.transformation_method :<>: SELF.transformation_method) )) = 0;
END_ENTITY
; (* map_projection *)
Generated on Tue Jul 10 19:38:05 2001
© Copyright 2001 POSC. All rights reserved.