Re: [ferret_users] thick white vectors

["William S. Kessler" <william.s.kessler@xxxxxxxx>]

One way is to define some other (unused) pen number to be white:

ppl color,6,99,99,99   ! redefine pen 6 to be almost white

Now you can do thick white vectors:

vector/col=18 u,v

Note that I did not define the "white" color to be 100,100,100. I  
can't remember what the problem is, but I think it causes ps2pdf to  
crash. At least it did something bad many years ago, and since no one  
can tell 99 from 100, I've kept doing it.

By the way, the same thing works for white contours overlaid on a  
color-fill plot.

BK

On 18 May 2012, at 8:25 PM, golla nageswararao wrote:

> Hi all,
>  I want to overlay thick white vectors on SSH maps. I tried  
> searching in mail archives and find out ppl pen 1,18 but how to  
> increase the thickness of the arrows, since this command only serves  
> for white vectors.
>
> Thanks in advance.
>
> --
> With Best regards,
> G.NageswaraRao,