Hi Dave,
I verified twice my input data, there was an error,
so sorry for this message pretty useless.
if my input file had been correct, the correct solution would be that you suggest in your previous answer
(interpolate new vectors).
Yann
________________________________
De : David Brown <dbrown_at_ucar.edu>
À : Yann Bertrand <yann74_at_yahoo.fr>
Cc : "ncl-talk_at_ucar.edu" <ncl-talk_at_ucar.edu>
Envoyé le : Mardi 13 août 2013 19h26
Objet : Re: [ncl-talk] vcMinDistanceF
Hi Yann,I am not sure I understand what you are saying exactly. But if you are trying to use vcMinDistanceF to make the vector field more dense than the actual spacing of the vectors, that is not what this resource is designed to do.
It is used to thin fields that are too dense. It does not interpolate new vectors to make fields more dense than their native resolution.
-dave
On Aug 12, 2013, at 11:14 PM, Yann Bertrand <yann74_at_yahoo.fr> wrote:
Hi all,
>I try to plot data spaced approximately 5km.
>I use res_at_vcMinDistanceF to choose density of my vectors,
>but I feel that this does not represent the good spacing between each grid point :
>1 vector each 10km instead of 5km, even if I don't use vcMinDistanceF ressource .
>
>here's elements from my script
>
>
>;where vectors should lie on the map :
>
>
> res_at_sfXCStartV = min(wind&lon)
> res_at_sfXCEndV = max(wind&lon)
> res_at_sfYCStartV = min(wind&lat)
> res_at_sfYCEndV = max(wind&lat)
>
>
>
>
> res_at_mpLimitMode = "latlon" ;define map's corners
> res_at_mpMinLonF = minlon
> res_at_mpMaxLonF = maxlon
> res_at_mpMinLatF = minlat
> res_at_mpMaxLatF = maxlat
>
>
>;vc ressources :
>
>
>
>res = True
>res_at_vcGlyphStyle = "LineArrow" ; vectorstyle
>res_at_vcRefLengthF = 0.01 ; ref vec length
>;lres_at_vcMinDistanceF = 0.014 ; larger means sparser
>res_at_vcVectorDrawOrder = "PreDraw" ; draw order
>res_at_vcMonoLineArrowColor = True ; vector in black
>
>
>Thanks in advance.
>Yann_______________________________________________
>ncl-talk mailing list
>List instructions, subscriber options, unsubscribe:
>http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
_______________________________________________
ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Wed Aug 14 03:36:11 2013
This archive was generated by hypermail 2.1.8 : Wed Aug 14 2013 - 18:35:09 MDT