The wires whose corners are rounded.
OptionalradiusThe rounding radius in model units, used for every selected corner unless radiusList is
given.
OptionalradiusOne radius per entry of indexes, in the same order; needs indexes.
OptionalindexesWhich corners to round, counted from 0 along each wire; leave it out to round them all.
The direction each wire is extruded along to build the fillets; it must not be parallel to the wire and must leave room for the radius.
Wires, a radius, optional corner indexes and an extrusion direction for
fillets.fillet3DWires, which rounds the corners of wires that do not lie in a plane.