regridding for numpties

[Michael Fiorino]

sorry bernd, lterp is NOT my regrid2 function -- it's a special case --
bilinear interpolation (i checked the code).  the "box average"
(area-weighted,
conservative) method is one of the more popular, especially in going from
higher to lower resolution.  i'm using the "bessel interpolator" method
these days, which is higher order than bilinear and good for going from
lower->higher resolution for fields without 1st order discontinuities
(e.g., sea level pressure as opposed to precipitation).  so user
defined function access in grads2.0 is still very much needed.  cheers, mike

Bernd Becker wrote:
> Arlindo,
>
>
> luckily, regrid has made it into Grads V2 under the new working title
> lterp.
>
> I am happy!
>
> Bernd.
>
> On Wed, 2008-11-05 at 01:06 +0000, Arlindo da Silva wrote:
>>
>> On Fri, Oct 31, 2008 at 4:11 PM, Bernd Becker
>> <bernd.becker at metoffice.gov.uk> wrote:
>>         Hello,
>>         where can I find the re-gridding function described here
>>         http://opengrads.org/doc/udxt/re/re.html
>>
>>
>> You will need grads v1.9.0-rc1 for using re(); more info here
>>
>>
>>   http://opengrads.org/wiki/index.php?
>> title=Installing_GrADS_on_Linux/MacOS_X/Unix
>>
>>
>>
>>  If you are using the Windows superpack it comes bundled with it.
>> Otherwise, you need to install the grads extensions as described here:
>>
>>
>>  http://opengrads.org/wiki/index.php?title=User_Defined_Extensions
>>
>>
>>
>>
>>         and how can I make that work in grads2?
>>
>>
>> You can't, at least not yet.  GrADS v2 currently lacks a mechanism for
>> user defined extensions but the developers are actively working on it.
>>
>>     Arlindo
>>
>> --
>> Arlindo da Silva
>> dasilva at alum.mit.edu
>>
> --
> Bernd Becker   The Monthly Outlook
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