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

begin
  shapefile_name = "gadm36_SEN_0.shp"

  wks = gsn_open_wks("x11","demo_map")    ; Open X11 window for graphics

  res                   = True    ; Set some plot options

  res@gsnMaximize      = True     ; maximize plot in frame

;zoom in on senegal
 res@mpMinLatF = 12.30785942
  res@mpMaxLatF = 16.69207191
  res@mpMinLonF = -17.54318619
  res@mpMaxLonF = -11.34247017


  res@mpDataBaseVersion = "MediumRes"   ; "LowRes", "HighRes"

  res@tiMainString      = shapefile_name    ; Main title

;create the map

plot = gsn_csm_map(wks,res)

set up resources for shapefile outlines
lnres                   = True         ; Set some line options

  lnres@gsLineThicknessF  = 2.0          ; default is 1.0
  lnres@gsLineColor       = "NavyBlue"   ; default is black
; lnres@gsLineDashPattern = 2            ; default is 0 (solid)

  id = gsn_add_shapefile_polylines(wks,plot,shapefile_name,lnres)

  draw(plot)
  frame(wks)

end