set gxout grid - skipping or combining fields?

[Arlindo da Silva]

On Feb 18, 2008 4:30 PM, Stefan Gofferje <gradsusers at gofferje.homelinux.org>
wrote:

> Hei,
>
> is there a possibility to skip or better combine grid fields and show
> e.g. an average value of a 2x2 area in the center?
>

You can do regridding, with box-averaging. The re() extension or even the
classic regrid2 UDF can do this. With re() you simply enter

ga-> d re(ts,2)

for interpolating to a 2 deg x 2 deg grid. This dynamic UDF is very fast.
More info here:

    http://opengrads.org/doc/udxt/re/

or more generally about installing extensions:

  http://opengrads.org/wiki/index.php?title=User_Defined_Extensions

  Arlindo

--
Arlindo da Silva
dasilva at alum.mit.edu
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