Set Polyline to Elevation

This command allows you to assign elevations to one or more polylines. The command also affects lines, arcs, circles, inserts and points as well as polylines. The elevation can be assigned by entering the value or by picking an existing object or text entity that has the desired elevation. Note that this will change 3D objects to a single target elevation (making it a 2D object) as well as changing elevation values of 2D objects.

Note that this is the same command as 3D Entity to 2D on the Edit menu.

Prompts

Enter/<Select text or linework of elevation>: Press E to enter a value directly, or select text or linework of source value
Linework Elevation: 440.000 (elevation of selected linework displays).
Select Lines, Arcs, Circles, Polylines, Inserts and Points for elevation change.
Select objects: 1 found
Select objects: 1 found, 2 total
Select objects: 1 found, 3 total
Select objects: press Enter to conclude selection.
LWPOLYLINE (indicates entity type)
LWPOLYLINE
3DPOLY to 2DPOLYLINE
Number of entities changed> 3

Pulldown Menu Location: 3D Data
Keyboard Command: 3dto2d
Prerequisite: A polyline and a target elevation to assign