Re: problem: "zero field" label and vcMinMagnitudeF

Silvio,

Setting rest@vcZeroFLabelOn = False should work.

Try the script below:

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

begin
  u = new((/100,100/),float)
  v = new((/100,100/),float)
  u = 0.
  v = 0.

  wks = gsn_open_wks("x11","gsn_vector")
  res = True
  res@gsnMaximize = True
  res@vcRefMagnitudeF = 50.
  res@vcRefLengthF = 0.045
  res@vcZeroFLabelOn = False
  res@vcGlyphStyle = "windbarb"

  plot = gsn_csm_vector(wks,u,v,res)

end

On Jun 19, 2012, at 7:55 AM, Davolio Silvio wrote:

>
> Dear Sirs,
> I am trying to plot wind barbs only where speed is greater than 10 m/s
> So I set my resource
> res@vcMinMagnitudeF = 10.
> The wind field is overlaid to eq. pot. temperature field.
>
> Everything works, but when wind is weak (less than the fixed threshold) all over the domain. In this case the "Zero Field" label apper (over the temperature field) and I can not get rid of it.
>
> Setting
> resv@vcZeroFLabelOn = False
> or
> resv@vcZeroFLabelString = "" does not have any effect at all.
>
> Any ideas?
>
> Thanks
> Silvio
>
>
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Received on Tue Jun 19 08:23:36 2012