I want to export a topography triangulation using the .dxf format.
However, when I select it and export I always get the “Large mesh is being subdivided” message and then if I open the exported mesh in a different Rhino instance, the mesh is split.
Can somebody tell me how to avoid this?
Thanks you very much and kind regards,
Jean
Hi Jean - how many vertices are in the split pieces? (What command)
-Pascal
The unsplit mesh has around 200k vertices.
the split one have various pieces of around 24k vertices.
Hm - that does not seem massive - can you send the file? Here (public) or to tech@mcneel.com (conffidential) with a link back here in your comments…
-Pascal
Just sent the email.
Thank you.
Hi Jean - thanks, I see the dxf, I’d like the Rhino file so that I can go through the export process here.
-Pascal
.3dm file sent
Thank you.
Hi Jean - thanks, I see this behavior here - to me this is very unexpected, I am checking with the developer.
@Jean8 - if you edit the export scheme to export meshes as 3dfaces rather than meshes,
it does not get split up. Oddly, to me, the export takes longer but the resulting file is smaller… The devloper os looking at removing the restriction on exporting meshes - it is probably a very old restriction that may no longer apply.
-Pascal
Thank you Pascal, this worked perfectly.
Is that issue has been resolved in Rhino 7? Just exporting the big terrain mesh (around 1.5mln tris) to the DWG and still Rhino forces “Large mesh splitting” process.
P.S. Indeed, 3DFaces mode is saving sooo long 
