b. Command Interface
The default Mesh Object is named 3dmesh. For simple problems the user must supply only a cmo /create/ mesh_object_name command. There is no limit on the number of Mesh Objects that can be defined, but at any time there is only one ‘current’ or ‘active’ Mesh Object. For more advanced problems, such as those requiring more than one Mesh Object or requiring extensions to the basic Mesh Object template, the Mesh Object(s) is(are) manipulated via thecmo commands which are described in the next section. For example, additional user defined attributes may be added to a Mesh Object by using thecmo /addatt command, or the ‘active’ Mesh Object can be changed using the cmo/select command.