>
> >Can any one help me to draw a reference line in zonal
> >average plot:
> >
> >
> > res@gsnZonalMean = True ; Draw a Zonal mean
> > plot(0) = gsn_csm_contour_map_ce(wks,ABS, res)
> > setvalues plot@xy
> > "trXMinF" : -200
> > "trXMaxF" : 400
> > "gsnXRefLine": 0.0 ; draw a reference line
> > end setvalues
> >
> >
> >but "gsnXRefLine": 0.0 do not work, how can I do
> >that?
> >Please answer as early as convinient!
> >
> >Thank you !
> >
> >liping
>
> Liping,
>
> Try this:
>
> res@gsnZonalMean = True ; Draw a Zonal mean
> plot(0) = gsn_csm_contour_map_ce(wks,ABS, res)
> setvalues plot@xy
> "trXMinF" : -200
> "trXMaxF" : 400
> "gsnXRefLine": 0.0 ; draw a reference line
> end setvalues
> resp = True ; polyline mods desired
> resp@gsLineThicknessF = 2.0 ; thickness of lines
> dum = gsn_add_polyline(wks,plot@xy,(/0,0/),(/-200,400/),resp)
>
> I haven't tested it, but I believe it should work.
>
> Adam
>
Liping (and Adam),
Just a tiny correction, be sure to remove the line:
"gsnXRefLine": 0.0 ; draw a reference line
from the "setvalues" block. The gsn resources are special ones that
are recognized only by the gsn plotting scripts, and are *not*
recognized by setvalues.
--Mary
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