gggmork
If you can make any sense of this post, congratulations
Posts: 2856
Registered: 0607 
draw a square w lines pointing inward.
select lines in linemode.
click linedefs/curve.
check both boxes, enter a power of 2 (minus 1) for # of vertices
such as 3 or 7 or 15 (or any number)
adjust angle
I think draw multiple nested squares and do same for concentric circles
