Visible Edges DGN Files
You can create a visible edges DGN file — a 2D or 3D DGN file that contains the edges visible in a 3D view (that is, with those edges that would be hidden, removed).
Tip: Rather than
creating a visible edges DGN file, the preferred technique in the context of
the
Drawing Composition workflow is to
merge
references into the active model. To merge references, select
in the
References dialog.