**join_nsets#
Description#
This command joins node sets. The original node sets are conserved. In the new node set the order of the nodes is the same as in the constituting node sets, and the order of the node sets within the newnode set is as entered by the user. By default a check is carried out in order to prevent nodes from being added twice. This can be switched off with the *keep_duplicates option.
Syntax#
The **join_nsets command requires a new node set name and one or more existing nsets to be joined into the new node set.
**join_nsets new-nset
\(~\,\) *nsets nset1 [ nset2 … nsetN ]
\(~\,\) [ *start_with prefix ]
\(~\,\) [ *keep_duplicates ]
where nset1 … nsetN indicate the names of pre-existing nsets.
Alternatively, the list of node sets that start with a prefix can be given through *start_with.