Software William L. Wingle Geostatistical Analysis Tutor: VS2DI: A Graphical User Interface for the Variably Saturated Flow and Transport Computer Program VS2DT/H. UNCERT: A Geostatistical Uncertainty Analysis Package Applied to Groundwater Flow and Contaminant Transport Modeling. Graphix: A simple library of C and FORTRAN callable X-windows/Motif. graphics routines 3D, Isometric Solid Surfacing and Shading: This was an early DOS program for rendering 2D gridded data as a 3D surface. Surfaces were displayed with color contours, gradients, and shaded relief. wwingle@uncert.com Last Modified: October 2, 2014