SUBTYPE_CONSTRAINT egt_non_feature_shape_element_subtypes FOR non_feature_shape_element; ONEOF (derived_non_feature_shape_element, directed_axis, positional_boundary_armx, positional_boundary_member_armx, tolerance_zone_boundary_armx, tolerance_zone_boundary_member, viewing_plane_armx, seating_plane_armx, reference_graphic_registration_mark_armx); END_SUBTYPE_CONSTRAINT; -- egt_non_feature_shape_element_subtypes |