Attempting to offset 3dpolyline . . .

Ok, i've received a dxf and saved as a dwg, tried to offset the 3d

polyline in it and returned with this.

Command: OFFSET

Current settings: Erase source=No Layer=Source

OFFSETGAPTYPE=0

Specify offset distance or [Through/Erase/Layer] :

Select object to offset or [Exit/Undo] :

Specify point on side to offset or [Exit/Multiple/Undo] :

Cannot offset that object

So i thought run the flatten command and then offset it, but I still

keep coming up with the same error message.

Any ideas 'cos i'm stumped.

Make sure it has no Z values; check in the properties etc. Also, sometimes it will always appear as a 3D poly. But there is a Lisp that will convert it to a 2D poly.

3DPoly_2_LWPoly.lsp

Cheers M8, That Did It