Display your grid as outstanding contour, 3D surface, 3D wireframe, watershed, vector, image, shaded relief, and viewshed maps. You can also use grid files obtained from other sources, such as USGS DEM files or ESRI grid files. Surfer provides more gridding methods and more control over gridding parameters, including customized variograms, than any other software package on the market. Surfer’s sophisticated interpolation engine transforms your XYZ data into publication-quality maps. More about What’s New in Surfer 13? Click Here Features Assign Coordinate System to All Unreferenced Layers.Consecutively Delete Vertices when Reshaping.Changing Blanking Flag when Saving Digitized Data.Calculate Statistics on Range of Values.Specify Units for Local Coordinate Systems.Display Labels in Custom Date/Time Format.This list is only a small sampling of the new features added to Surfer 13. We have compiled a list of some of the top new features in Surfer 13. Surfer is used extensively for terrain modeling, bathymetric modeling, landscape visualization, surface analysis, contour mapping, watershed and 3D surface mapping, gridding, volumetrics, and much more. Surfer is a full-function 3D visualization, contouring and surface modeling package that runs under Microsoft Windows.