[dokeun]

Dear users

I'm trying to mesh a periodic object(cylinder) on which 3 rectanguler slots are.
i.e. {7, 11, 14, 10}, {12,15,13,6}, {18, 19, 21, 20}

As you can see from the attachment, because of these holes, the cylinder wall has a bound composed with more than 4 lines.

So, it is impossible to define a surface(it's not a plane surface, but curved one)

At first I've tried to subdivide this surface to several, but it made a domain too complicate to treat.

I have no idea how to treat this surface.

Any suggestion is welcomed.

[dokeun]

I solved this problem with dividing all the surfaces which have more than 4 corners.