;************************************************* ; shapefiles_4.ncl ; ; Concepts illustrated: ; - Drawing the Missippippi River Basin using data from a shapefile ; - Masking a data grid based on a geographical area ; - Attaching markers to a map ; - Attaching polylines to a map plot ; ;************************************************* external ERA "./era40.so" load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl" load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl" load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl" begin nlon = 10 ERA::sm(nlon) end