“…Visualization of uncertainty data has inspired a broad variety of solutions (Pang, Wittenbrink & Lodha, 1997;Lodha, Wilson & Sheehan, 1996a;Minghim & Forrest, 1995;Cedilnik & Rheingans, 2000) (Barnhill, Opitz & Pottmann, 1992) (Wittenbrink, 1995) (Lodha, Sheehan, Pang & Wittenbrink, 1996b) (Grigoryan & Rheingans, 2002). Most of these methods consider uncertainty to be a scalar quantity.…”