[SoC] Netcdf for uDig - status report #5

Hamish hamish_b at yahoo.com
Thu Jun 25 19:47:15 EDT 2009

Wolf wrote:
> Thanks for the report. I really like those vector arrows
> for directional data. :) How hard would it be to modify it to
> show wind data with different icons depending on the magnitude?
> The idea would be to create maps like this:
> http://www.weatheronline.co.uk/sail.htm

Hi, FYI I have half-written a new module called d.barb for GRASS,
it does like the above (GRIB data; partial code reused from
d.rast.arrow) but also allows an option for sparse lagrangian
style at vector points using DB attributes for velo,dir, & an
option to use magnitude-sticks of varying length instead of

The technology is well in hand, as always I just need to find
some free time to clean it up.

for now, you might try the zyGrib software.



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