Is 3d polylines supported in nowadays?
I see what z-coordinates (30) of vertices are wrote correctly, but in dwgTrueView all of polylines points have z-coordinate equal to zero.
I found why there is z-coords, but in the end it is zero.
Dxflib writes "LWPOLYLINE" ->
"LWPOLYLINE entities are defined more efficiently, and in theory take up
less memory and disk space. They are always 2D."
(from autodesk site)
i found a trick: we need to choose format AC1009 and write polyline with flag 8. But this file contains many errors, DWGTrueView can't open it (but DraftSight can).