Find length of a scroll

[mike2334]

I have drawn the top of a impeller scroll for a cyclone using AutoLisp.  Now using AutoLisp I have to find the length of this scroll so I can make the side.   How can I get this length, I have use pedit to make it all one line but with entget I can't find the length?  Is there a way to use list in Autolisp and pull out the length?

Thanks Mike

[john.uhden]

The only thing that bothers me is that PI R round, well except for a
Sicilian pizza PI from Andy's. That Pi R squared.

[Sea-Haven]

I agree