ISO 10303-214:2010(E)
A B_rep is a geometric element that is defined by exactly one outer Closed_shell and by zero or more inner Closed_shell objects.
A B_rep is a type of Detailed_geometric_model_element.
The data associated with a B_rep are the following:
The outer specifies a Closed_shell defining the exterior boundary of the B_rep.
NOTE This shell has a normal pointing into the empty outside space.
See B_rep to closed_shell for the application assertion.
The void specifies a Closed_shell that represents an internal cavity of the B_rep.
NOTE This shell has a normal pointing into the empty inside space.
See B_rep to closed_shell for the application assertion.
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