I am trying to show the length of a sheet metal part without using the flat pattern, similar to an arc length. In this case, it is a sheet metal part with a slight bend on each end. We normally buy these parts as a flat sheet that is a little long, and the shop trims them to length. The cut list shows the purchased length of course, so we need to show the finished length before it gets bent. Ordinarily, I would just show a flat pattern, but our shop is not used to seeing that, and they may or may not understand what it is. Any suggestions?