Re: [ferret_users] label problem and arrow in vector command

["William.S.Kessler" <William.S.Kessler@xxxxxxxx>]

Selecting points by mouse does not work in Mac Ferret, or only  
occasionally, and usually results in hanging Ferret. Just one of  
those bugs.

Your second question is easier:

vector/set/nolab/len=0.2 u,v
ppl veckey,xpos,ypos   ! xpos,ypos are the position of the start of  
the vector key
ppl vector

Note that veckey also has a 4th argument to add format and text:

ppl veckey,xpos,ypos,,(f4.0,"m s^-^1")

Note the double commas for a dummy 3rd argument, and also that the  
string in quotes cannot exceed 11 characters. (How's that for Ferret  
trivia?)

Also I see that you have misspelled "length". One of those weird  
English words. Avoid this problem by just using "len".

Billy K

On 21/11/2007, at 11:02 AM, yangxing zheng wrote:

> Dear ferret_users,
>
>          I do have two major questions now. One is the
> label problem. In order to clean plot, we usually use
> /nolabel qualifier to hide labels, title that
> automatically come from the datasets. And we usually
> user-define label what we want, i.e., label/nouser "
> string", or label , , -1,0,0.2 "string" to use mouse
> conveniently to put a label where we want. But now it
> seems that I can not use mouse to label a string. I am
> not quite sure it has anything to do with my ferret
> installation because I recently install ferret V5.70
> (alpha) on my Mac in the path that is not default
> setup that ferret requires, i.e., /usr/local
> I install my ferret in my home directory
> /Volumes/User/yzheng/Applications
>
> Does anyone have an intuition about this problem?
>
>      The second question I encounter is when I use
> vector/nolab/lenght=0.2 u,v
>
>      The length of arrow will definitely not appear.
> Can anyone have an idea to show up the length of arrow
> but use /nolabel in the mean time for hide unwanted
> information?
>
>       Thank you for your attention and happy
> Thanksgiving!!
>
>
>      Yangxing
>
>
>
>
>        
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