I think I'm hitting some limitations of the AIS module (or the documentation thereof - e.g. how do I display an edge with the orientation indicated).
Is it worthwhile to invest time into converting to OCCT+VTK? Are there any other alternatives that should be considered? I'm looking for some...
Regarding constrained surface filling, would you have some pointer on the theory? I found this:
Is similar approach used in OCCT?