Polyhedron Face Element (POLFACE)

Primitive Element

Description

An administrative element which holds Polyhedron Loop (POLOOP) members representing the faces of a Solid Polyhedron (POLYHE) or Negative Polyhedron (NPOLYH). For an unbroken face, each POLFAC will normally hold one POLOOP only, but a discontinuous face may be represented by a POLFAC comprising two or more POLOOPs.

Attributes

Legal Owners

Area Polyhedron Element (APOLYHEDRON)

Negative Polyhedron Element (NPOLYHEDRON)

Polyhedron Element (POLYHEDRON)

Legal Members

Polyhedron Loop Element (POLOOP)

Polyhedron Faces (POLFACs), unlike Polygons (POGOs), are not represented in the spatial map used for clash checking and so on.