topology.submodel -- select topology model type

Description:

This is used to select the type of topology model currently in use; see topology.make() for more information. Note that it is not usually necessary to explicitly set topology.submodel, since it is set for you automatically when you read a topology file (all of the standard MODELLER topology files include a '* MODELLER topology.submodel' header from which this information is derived). See topology.read().