struct.node.surface.valid

Syntax

b := struct.node.surface.valid(sn) (3D ONLY)

Get a boolean flag for surface coordinate system validity (true if the surface system is valid, false if it is not). The surface system is made valid by issuing the structure shell recover, structure geogrid recover, and structure liner recover commands.

Returns:

b - boolean flag; true if the surface system is valid, false if the surface system is not valid

Arguments:

sn - pointer to a structure node