For the same reason as I said, you do not have horizontal distances in both
cases. Your 3d poly is measuring along its' path (length).
Bill
wrote in message news:5479456@discussion.autodesk.com...
Yes, i know that but i'm talking about horizontal distance in both cases,
first is from profile (station distance), second from 2dpoly (length of
2dpoly) .. and they are different for those 9.2145 (in my case), how can
that be?