A Topological_object is a Class that has a set as a member, and that can indicate one or more of the following:
EXAMPLE - An edge (with topological dimension of 1) is a Topological_object.
The set of cross sections along beam XB_123 is classified as an edge.
EXAMPLE - A face (with topological dimension of 2) is a Topological_object. A division of a face into the triangles and quadrilaterals of mesh FB_027 is a Topological_object.
The set of normal fibres over shell PLT_24 is classified as a face. The set of normal fibres is also classified as mesh FB_027, indicating a sub-division for analysis.
EXPRESS specification:
*)
ENTITY Topological_object
SUPERTYPE OF ONEOF (
Region,
Vertex))
SUBTYPE OF (Class);
END_ENTITY;
(*