Hi,
I imported a 3d building model online in DWG and opened it on Rhino. The volumes are in mesh with multiple triangle. How do I convert it to volumes made up of single planar surface on each surfaces. Images attached are the mesh volumes and the planar surface volumes I would like it to become.
I have tried reduce mesh, meshtonurbs etc, but there are still multiple unnecessary triangles.
Hi @j.woo,
Do you want your geometry to stay as mesh? If so for the visuals you can use _AddNgonsToMesh Command, it will visually merge all co-planar mesh faces.
If you want to convert to NURBS you can run _MeshToNURB Command and after that _MergeAllFaces command on the resulting polysurface.
Thank you! It worked!
Thanks, new to me.
…probably because it’s not called something self-explanatory like MergeCoplanar or summat…
Its only visual, as meshes inside of rhino conceptually can only be made up of triangles and quads, if you sub-object select an ngon face you will see the underlying faces again.
So its not really merging those co-planar faces.
Ah, yup. And if you export as STL they also come back…
Stl can only store triangles anyway 
