>
> All
>
> I'm working on some simple line-plots where
> some of the Y-values are set to _FillValue. The lines
> themselves don't plot the _FillValue's, but when
> I turn Markers on (with xyMarkLineModes, xyMarkerColors, and
> xyMarkers), the markers plot the points set to
> _FillValue as well.
>
> Is there any way to use Markers but have the
> _FillValue points not plotted?
>
>
> Thanks
>
> Erik Kluzek, (CGD at NCAR)
> National Center for Atmospheric Research
> Boulder CO, (off) (303)497-1326 (fax) (303)497-1324
> --------- Home page and public PGP key---------------
> http://www.cgd.ucar.edu/~erik
Erik,
It shouldn't matter whether you are plotting lines, markers, or both
markers and lines, no lines or markers should be plotted at _FillValue
locations. As a test, run this little script and let me know if it
is plotting the _FillValue values:
----------------------------------------------------------------------
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
begin
wks = gsn_open_wks("x11","test")
x = ispan(0,100,1)
y = sin(.0628*x)
y@_FillValue = -999
y(10:20) = y@_FillValue
y(80:90) = y@_FillValue
res = True
res@xyMarkLineMode = "Markers"
res@xyMarker = 16
res@xyMarkerColor = "red"
plot = gsn_xy(wks,x,y,res)
end
----------------------------------------------------------------------
Thanks,
--Mary
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