multipatch boundary id magic number

[j042]

BID=1 doesn't seem to have any effect, when you try to call
mp.boundary_multipatch(1). is it because of default value -1?

[jzwar]

Yes. BID starts at 1. Hence, 1 is default. Should you have more than one boundary, it should only return the first one, though.

[j042]

Ok, I guess it is helpful. Maybe we should add a note. I tried to set a certain boundary to BID=1, and I kept getting all the the boundaries. I will add this to upcoming clean up