Hi Bob,

Additionally, if you want to know the length of a circular — or any other — curve, you can use Michael's easy UnwrapCurve plug-in command:

http://moi3d.com/forum/messages.php?webtag=MOI&msg=5136.1

UnwrapCurve is also very useful in conjunction with the Flow function, to avoid distortion in the flowed result.

Have a nice weekend.

— Metin