Re: why is the edge in raster fill plot so blurred?

This is a followup regarding blurred edge in raster fill plot. The solution
so far is to use 'oldpdf' intead of 'pdf' as the workstation type.

http://www.ncl.ucar.edu/Support/talk_archives/2013/0370.html

But this solution causes the change of filling color for _FillValue from
the default 'white' color to 'black' color.

Below is a script I have modified from the original thread to illustrate
this problem.

Is there any quick fix to change the fill color from 'black' to 'white',
thanks!

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"
begin
nx = 5
ny = 5
data = new( (/ny, nx/), float)

do i = 0, nx-1
   do j = 0, ny-1
      data(j,i) = rand()
   end do
end do

data@_FillValue = 1e35

data(1:2,1:2) = 1e35

wks = gsn_open_wks( "oldpdf", "./test") ;plotdir+"/"+varname)
res_ct = True

res_ct@cnFillOn = True
res_ct@cnLinesOn = False
res_ct@cnFillMode = "RasterFill"
res_ct@lbOrientation = "vertical"
res_ct@gsnSpreadColors = True
plot = gsn_csm_contour( wks, data, res_ct)
end

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Received on Thu Jun 05 15:03:49 2014