cbar.gs problem - negative wind speed

[William Scheftic]

Maybe this?

If you want to display the speed as a color on the vector

set gxout vector
d u ; v ; mag(u,v)
cbar

Or if you want a shaded map of colors behind the vectors
set gxout shaded
d mag(u,v)
cbar
set gxout vector
d u ; v

http://grads.iges.org/grads/gadoc/gradcomdsetgxout.html

Regards
Bill Scheftic

-------------- Original message --------------

> Hi,
>
> I tried to plot the wind field with vectors:
>
> set gxout shaded
> d u;v;u;v
>
> and I plotted the color bar with cbar.gs:
>
> but I got negative wind speed on the botton of the scale and
> positive on the top of the vertical scale!!!
>
> negative wind speed is something which I don't understand(physicaly
> -yes, but on the map -> can't). I think that this is some bug.
>
> HELP!
>
> :)
>
> Angel
>
>
> =====
> Angel Dimitrov
> Varna, Bulgaria
> http://www.stormlab.net
> http://www.stormlab.tk
> http://www.vveather.tk
>
>
>
>
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> =====
> Angel Dimitrov
> Varna, Bulgaria
> http://www.stormlab.net
> http://www.stormlab.tk
> http://www.vveather.tk
>
>
>
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