ps_arrow_vertices       Extract arrow base or tip points
ps_contours             Create contours from a surface raster
ps_export_surfaces      Export surfaces, contours, and quicklook PNGs
ps_flow_arrows          Generate hydraulic-gradient flow arrows
ps_interpolate          Interpolate potentiometric surfaces
ps_make_points          Make groundwater observation points
ps_potentiometric_points
                        Build potentiometric points from depth-to-water
                        measurements
ps_quicklook            Draw a quicklook surface plot
ps_sample_aoi           Make the sample area-of-interest polygon
ps_smooth_surface       Smooth a potentiometric surface raster
synthetic_dem           Synthetic DEM raster
synthetic_surface_points
                        Synthetic surface elevation measurement points
synthetic_wells         Synthetic groundwater monitoring wells
