Subdivide, delete edges, keep corners


jiao

Can you post a file with the relevant geometry?


Test file.rar (102.1 KB)
dlte.3dm (809.5 KB)

Just the relevant parts as .3dm please

Thanks for the report, I filed this as https://mcneel.myjetbrains.com/youtrack/issue/RH-65864

In the meantime, ExtractControlPolygon > delete the edge and > ToSubD will get you the result you want.