load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"

;
; The poly1* series of examples shows how to add various annotations
; to a plot, like markers, text, polygons, and lines.  There are
; two different data spaces you can use for adding this stuff: NDC
; space, or data space. Both will be shown.
;
begin
  wks = gsn_open_wks("ps","poly1a")         ; Open PS file "poly1a.ps"

  mpres = True                              ; No plot options set.
  map   = gsn_csm_map(wks,mpres)            ; Draw plot
end