By Garry Stockton
If you’re having issues measuring rounded objects accurately, such as the bottom sides of pipes, ducts etc, turn on Edge Snapping. Go to Navisworks, pick the Big N, Options Editor and under Interface, Snapping. Make sure “Snap to Edge” is enabled. This will allow you to snap your measurement tool to edges of vectors, which is conveniently located on the bottom and topmost sides of cylinder-shaped objects. See below.