**extract_surface

Description

This command builds bsets corresponding to each surface of a given elset.

Syntax

The command has the following syntax:

**extract_surface \(~\,\) [ *elset elset-name ] \(~\,\) [ *criterion angle ] \(~\,\) [ *prefix bset-prefix ]

*elset

restricts the operation to the named elset (defaults to ALL_ELEMENT),

*criterion

is the angle (in degrees) from which two adjacent elements are considered part of different surfaces (defaults to \(45^\circ\)),

*prefix

is the prefix name for the resulting bsets (default is surface_).