Re: vector arrows

Hi Dorita,

Please see example 7 on the vector page:

http://www.ncl.ucar.edu/Applications/vector.shtml#ex7

The default is that the vector arrow is centered with respect to the grid, but you can change this to "ArrowHead" or "ArrowTail" using the vcPositionMode resource.

I double-checked the wrf_vector routine, and it doesn't change the value of this resource, so it should be "ArrowCenter" by default.

--Mar

On Nov 21, 2011, at 6:34 AM, Dorita Rostkier-Edelstein wrote:

> Hi,
> I am plotting WRF winds as vectors on the map, it is not clear to me how the vector-arrow is defined with respect to the grid: is the base of the arrow at the grid-point, the head, or what?
> Thanks,
>
> Dorita
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Received on Mon Nov 21 10:13:00 2011