Re: [ferret_users] question about vector plot

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi -
What difficulty are you having?  If one component is 0, then the vector 
there will be horizontal or vertical. If both components are 0, Ferret 
just makes a dot. If one or both components have missing data at some 
locations, then those locations will have no vector.

yes? use coads_climatology
yes? vector/L=1 uwnd, vwnd

yes? ! make a variable that definitely has some zero values. Where UZERO 
is 0 the vectors
yes? ! point straight up or down.

yes? let uzero = if uwnd lt 0 then 0 else uwnd
yes? vector/L=1 uzero, vwnd

chengs wrote:
> Hi, ferret users
>
> Now I met a problem. Can somebody tell me how to use vector command to 
> plot vector figure when one variable of TAUX/TAUY
> or UVEL/VVEL equals 0? For example, TAUX(:,:) have values, but 
> TAUY(,:) = 0. Question is how to plot vector figure using TAUX
> and TAUY?
>
> Thanks in advance
>
> **************************************
> Guangshan Chen
> Center for Climatic Research
> University of Wisconsin-Madison
> 1225 W.Dayton Street
> Madison, WI 53706  USA
>
> phone : 608/890-0907
> fax      : 608/263-4190
> email  : gchen9@wisc.edu