[ncl-talk] Enquiries on vector plottting

[Rick Brownrigg]

Hi,

One thing that comes to mind is to simply normalize your vector data prior
to plotting. You would then use the vcRefLengthF resource to control how
big the vectors are in the plot.  There are plenty of examples on the
examples page, a basic one being veceff_1.ncl.

http://ncl.ucar.edu/Applications/veceff.shtml
http://ncl.ucar.edu/Document/Graphics/Resources/vc.shtml


I don't know about the Sea Level plot -- perhaps someone else can
comment on that.

Rick


On Fri, Jun 26, 2015 at 7:41 AM, KO Chiam <kochiam at gmail.com> wrote:

> Dear Sir/Mdm,
>
> I am new to NCL and would appreciate if you can help address the following
> queries. Please pardon me if they sounds too simple.
>
> I would like to plot vectors (basically wind data) using arrows but I
> would like the arrows to be of equal length, in other words, I am only
> interested in the direction but not the magnitude. May I know if there is a
> way to do this?
>
> Also, is there already a function call to identify and plot the high and
> low pressure of a mean sea level chart?
>
> The version of NCL I am using is v6.3.0.
>
> Thank you very much for your time and help.
>
> Best Regards,
> Keng-Oon
>
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