[las_users] Re: Illegal limits error on Western longitude using LAS Armstrong 1.1.1

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi Penny,
This is a bug in the Ferret scripts that LAS runs.  Thanks for the 
report - we'll look into it and get back to you.

Ansley

Oots, Penny C. (LARC-E301)[SCIENCE SYSTEMS & APPLICATIONS INC.] wrote:
> I have included the following data in my LAS Armstrong 1.1.1 server
> (Ferret 6.08) on a development server:
> http://oceanwatch.pfeg.noaa.gov/thredds/dodsC/satellite/SW/chla/mday
>
> A color plot is produced if the lon requested is 0 to 360.  However, if
> 180W to 180E is used, I get the following error:
>
> **ERROR: illegal limits: I on grid (G002) does not exist at X=180E(-180)
>
> Axis extremes are X=0.3W(-0.3):0.1E(360.1) 
> DEFINE VARIABLE strd_lo = `i[gx=pvar,x=-180]` 
> Command file, command group, or REPEAT execution aborted 
> STOP -script mode, ERROR RUNNING SCRIPT statement executed 
>
> I included the following init script:
>
> SET DATA ($data_url)
> !<custom
> set axis/modulo LON 
> !custom>
>
> Got this error:
> *** NOTE: Stride value not an integer factor of axis length: Axis loses
> modulo property
>  **ERROR: illegal limits: I on grid (G002) does not exist at
> X=180E(-180)
>           Axis extremes are X=0.3W(-0.3):0.1E(360.1)
> DEFINE VARIABLE strd_lo = `i[gx=pvar,x=-180]`
> Command file, command group, or REPEAT execution aborted
> STOP -script mode, ERROR RUNNING SCRIPT statement executed
>
> Note:  This same dataset in a LAS 6.5.1 (Ferret 6.05) server will show a
> plot starting at 0 degrees going to 160 degrees.
>
> Can you suggest a way to make this dataset accessible using 180W to
> 180E?
>
> Penny Oots
> Science Systems & Applications Inc.
> NASA Langley Research Center, MS 157D
> Hampton, VA 23681-2199
> (757) 864-9816
>
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