def _make_shell(vec):
algo = BRepOffsetAPI_Sewing()
for a in vec:
algo.Add(a.Shape())
algo.Perform()
if len(vec) > 1:
fixer = ShapeFix_Shell(algo.SewedShape())
fixer.Perform()
return Shape(fixer.Shell())
else:
return Shape(algo.SewedShape())
def _unify_shell(proto):
faces = []
mkShell = BRepOffsetAPI_Sewing()
newfaces = _unify_faces_array(proto.faces())
for n in newfaces:
mkShell.Add(n.Shape())
mkShell.Perform()
return Shape(mkShell.SewedShape())