Compact (default)—Each partition will represent a so-called biconnected
component of the model. This component consists of entities that are reachable
by two relationship-disjoint paths. Entities that belong to more than one
biconnected component will be assigned exclusively to one partition.
Isolated—Entity partitions will be formed similarly to those in Bcc
Compact with the exception that all entities belonging to more than one
biconnected component will be assigned an isolated partition.
Groups—Entity partitions that form circles will be provided by the user.
To specify the partitions, a data provider holding such supplemental layout data
must be bound to the model.
Cycle—All entities will be arranged on a single circle.