Convert 2D to 3D

Converts 2D polylines to 3D polylines so that you can edit the elevation of the individual vertices.

Keyboard Command: Cnv2do3do

Keep in mind that the display of these polylines can change as AutoCAD cannot display a linetype or width on a 3D polyline.

Note: Before running this operation on 2D polylines that have arcs, you should run the remove arcs routine in the polyline maintenance section.