Subd edges to the same level (split?)

Rhino Rhino for Windows
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1

Hi!
Is there some easy way to get these edges to the same level as the big plane?

kuva
kuva1641×466 23.8 KB

There is no split in subd (maybe).

Setpt is not possible because I want to move the edges to the same direction as part edge to keep the shape same as earlier.

I’d like to work in edge mode, but it gives only smoothed mode intersection.

kuva
kuva1060×654 27.4 KB

What else should I try?

I’m pretty rookie in subd, so thanks for helping me :slight_smile:

2

try InsertEdge which you position at the plane then delete the rest below

3

Hi @Wagner
Another workaround is to use ExtractControlPolygon on the Sub-D, use MeshSplit to split the extracted mesh and then use ToSubD to get it back.
HTH, Jakob