Topological object Application Object


A Topological_object is a Class that has a set as a member, and that can indicate one or more of the following:

  1. the dimensionality of the set;
  2. the continuity within the set;
  3. the sub-divisions of the set.

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;
(*