POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
GRID_DEFINED_GRID
SUBTYPE OF
(
grid_structured
);
INVERSE
grid_structured :
SET [2:?] OF
grid_composition
FOR
grid_defined_grid;
seismic_geometry_set :
SET [0:?] OF
seismic_geometry_set
FOR
field_trace_grid;
UNIQUE
si:
grid_or_mesh
.identifier;
WHERE
val: EXISTS(grid_structured);
END_ENTITY
; (* grid_defined_grid *)
Generated on Tue Jul 10 19:38:00 2001
© Copyright 2001 POSC. All rights reserved.