ShadeLtContour, a color conflict

From: Gwenaelle <philippon_at_nyahnyahspammersnyahnyah>
Date: Tue, 10 Mar 2009 16:36:02 -0500

Hi all,

I am trying to shade an area over a colored contour plot (lat/lon).

I have succeed to reproduce the shading over the map without a color
table (without the line " res_at_cnFillOn = True ", see the script
bellow).
But when I add this line, I obtain a map in Black and White with the
contour + the shading + the color table BUT no colored map.

I don't figure out what is the problem in that script? Is the function
Shade appropriate for my plot?

Your help is much appreciated.

Thanks,
Gwenaelle

;***********************
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
begin

  f = addfile("toto.nc","r")
  t = f->TS(0,:,:)
  t = t -273.15

  wks = gsn_open_wks ("ps", "toto" ) ; open workstation
  res = True ; plot mods desired
  res_at_gsnDraw = False ; do not draw
  res_at_gsnFrame = False ; do not advance
frame
   res_at_cnFillOn = True ; Turn on color

  plot = gsn_csm_contour_map(wks, t, res )
  plot = ShadeLtContour(plot,10.,17)

  draw(plot)
  frame(wks)
end
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Received on Tue Mar 10 2009 - 15:36:02 MDT

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