With the new layout engine for nwdiag:
Note that we have change the layout engine for nwdiag in this beta, so result should be better in some complex case (such as this example)
We observe this minor regression :
Then an Open question:
With the new engine, could you add some parameter (1/2, 1/3, 1/4,... of shift) to transform opposite layout on an pseudo alterne layout...
This layout is very too straight line...