The morpher to_contracted calls to_simple without allowing to pass options.
In many cases, though, we may want to keep selfloops when e.g., collapsing nodes to their group "meta-node", so that edges within groups are not lost. I propose to make the arguments of to_simple visible from to_contracted.
The morpher
to_contractedcallsto_simplewithout allowing to pass options. In many cases, though, we may want to keep selfloops when e.g., collapsing nodes to their group "meta-node", so that edges within groups are not lost. I propose to make the arguments ofto_simplevisible fromto_contracted.