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Re: [ferret_users] Changing grid units
Both setting the format of tic labels and re-defining data X and Y axes
in km worked well for me.
Thanks, Ansley!
--- Peng
----- Original Message -----
From: Ansley Manke <Ansley.B.Manke@xxxxxxxx>
Date: Tuesday, September 27, 2011 12:29 pm
Subject: Re: [ferret_users] Changing grid units
> Hi -
> You could leave the grid as is, and set the format of tic labels to
> show
> enough digits, for instance
>
> shade/set var
> ppl xfor (f9.0)
> ppl yfor (f9.0)
> ppl shade
>
> or using scientific notation
>
> shade/set var
> ppl xfor (e10.2)
> ppl yfor (e10.2)
> ppl shade
>
> You might need to make bigger margins to make room for these labels
> (see
> the script "go margins")
>
> The other option would be to redefine your axes in terms of Km and
> regrid the variables to the new axes. See "DEFINE AXIS/FROM_DATA"
> where for instance the X coordinates converted to Km would be,
>
> x[gx=xgrid]/1000
>
> -Ansley
>
> On 9/26/2011 11:58 AM, Ge.Peng@xxxxxxxx wrote:
> > My data grid is polar_stereographic projection in meters:
> >
> > yes? sho grid
> > Default grid for DEFINE VARIABLE is ABSTRACT
> > Last successful data access was on grid GKV2
> > GRID GKV2
> > name axis # pts start end
> > XGRID X (meters) 304 r -3837500 3737500
> > YGRID Y (meters) 448 r -5337500 5837500
> > normal Z
> > TIME1 TIME 1 r 30-SEP-2007 00:00 30-
> SEP-2007 00:00
> >
> >
> > Too long for the x and y tick labels for the negative numbers.
> >
> > How do I convert the X and Y axis from meter to km?
> >
> > Thanks,
> >
> > --- Peng
>
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