POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
VERTEX
SUBTYPE OF
(
spatial_object
);
on_surface :
OPTIONAL
ndt_logical
;
INVERSE
bounded_first :
SET [0:?] OF
edge
FOR
first_boundary;
bounded_second :
SET [0:?] OF
edge
FOR
second_boundary;
pty_azimuth :
SET [0:?] OF
pty_azimuth
FOR
vertex;
pty_geometry_simple_1d_edge :
SET [0:?] OF
pty_geometry_simple_1d_edge
FOR
vertex;
pty_grid_convergence :
SET [0:?] OF
pty_grid_convergence
FOR
vertex;
pty_inclination_from_vertical :
SET [0:?] OF
pty_inclination_from_vertical
FOR
vertex;
pty_legal_survey_location :
SET [0:?] OF
pty_legal_survey_location
FOR
vertex;
pty_location_1d :
SET [0:?] OF
pty_location_1d
FOR
vertex;
pty_location_2d :
SET [0:?] OF
pty_location_2d
FOR
vertex;
pty_location_3d :
SET [0:?] OF
pty_location_3d
FOR
vertex;
transformation_parameter_value :
SET [0:?] OF
transformation_parameter_value
FOR
vertex_value;
UNIQUE
si:
spatial_object
.identifier,
spatial_object
.located_object,
spatial_object
.identifying_whole,
spatial_object
.creating_activity,
spatial_object
.located_activity;
END_ENTITY
; (* vertex *)
Generated on Tue Jul 10 19:39:16 2001
© Copyright 2001 POSC. All rights reserved.