Re: interpolation/regridding question

[Emilio Mayorga <emiliom@xxxxxxxxxxxxxxxx>]

Brent,

Use @ASN instead of @LIN. It replaces the elements of the old axis with
those of the new one, following the order you've specified. You might want
to include an explicit time origin in the axis my_time, with the
qualifier /T0=

I just used @ASN yesterday for the first time and it worked like a charm.

Emilio



On Fri, 11 May 2001, Brent A McDaniel wrote:

> 
> Hi Ferreters,
> 
> I have a series of 17 3-d grids contained in 1 file with the 4th dimension
> being time running from 1 - 17 days.  I want to regrid the data so that
> the time axis isn't {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17} but
> {1.00, 3.13, 5.25,
> 7.38,9.50,11.63,13.75,15.88,18.00,18.38,18.75,19.13,19.50,19.88,20.25,20.63,21.0}.
> The variable in the files is called ao.
> 
> From inside ferret I type show transformations and saw @LIN        lin. interp.
> which sounds promising but when I checked the manual I didn't find it.
> And searching the mail archives for @lin didn't work.
> 
> Is it as simple as something like:
> 
> define axis/units=days my_time = { all those numbers}
> let aonew=ao[gt=my_time@LIN]
> 
> ??
> 
> 
> Thanks.
> 
> - Brent
> -- 
> Brent A. McDaniel
> 
> Dept of Earth and Atmospheric Sciences
> Georgia Institute of Technology
> Atlanta, Ga.  USA
> 
> 
>