Error in RhinoCommon Unroller vs _UnrollSrf

[Toni_Osterlund]

@Petras_Vestartas
This post, and everything in it by @dale provides more insight.

RhinoCommon UnrollSurface differs from UnrollSrf command

Have a look at the file in attachment. When I use the UnrollSrf command I get a flat polysurface with smooth edges. When I use RhinoCommons UnrollSurface I get a surface with ugly jaggered edges. How can I achieve the result from the UnrollSrf command using Rhinocommon? [image] For repeating the problem, try this code using Python: import rhinoscriptsyntax as rs obj = rs.GetObject() rs.UnrollSurface(obj) 211214 UnrollSrf vs sr.UnrollSurface.3dm (116.0 KB)

I’m unfamiliar what brep.Compact() does, but it seems that Dale rebuilds edges, shrinks surfaces and culls unused faces, (plus some checkups) prior.