[gradsusr] undef in GrADS 2

[Jennifer Adams]

Yes, this does also affect the GDS. Here's the scoop from the GDS home  
page:

Important Note for GDS Administrators (June 2009): The recent release  
of GrADS (version 2.0.a6) implemented some necessary changes related  
to the handling of undefined values. These changes can affect the GDS.  
If you are administering a GDS version 2.0 with GrADS 2.0.a6 behind  
it, then a 1-line patch is needed for the file $GDSHOME/scripts/ 
subset.gs. The patched version is here. Updating the subset.gs script  
does not require a reinstallation or even a reload of your GDS.

In case the link doesn't work, the patched version is http://iges.org/grads/gds/patched_subset.gs

--Jennifer


On Jun 4, 2010, at 3:58 PM, Phil Cogbill wrote:

> Thanks Jennifer!
>
> I read about this some more and that worked great in GrADS 2, but  
> what about GDS 2?  I am still seeing this problem coming from GDS 2  
> and it is causing problems for other software that uses the GDS2  
> service.  I've looked through the configuration reference for GDS,  
> but do not see a way to set undef.  Any ideas?
>
> Phil
>
>
> Jennifer Adams wrote:
>>
>> Hi, Phil --
>> Undef handling was changed in version 2.0.a6. Please use the 'set  
>> undef' command to set the undef value for all GrADS display and  
>> output.
>> The changelog has the notification of this change http://iges.org/grads/changelog-2.0.txt 
>>  .
>> Please also look at the documentation: http://iges.org/grads/gadoc/gradcomdsetundef.html
>> Search the archives for "set undef" and you'll find more posts  
>> about this.
>> --Jennifer
>>
>>
>> On Jun 4, 2010, at 2:54 PM, Phil Cogbill wrote:
>>
>>> I am having a problem with GrADS not honoring the undef value in the
>>> control files and instead use -9.99e8 rather than 9.999e20.  This  
>>> has
>>> just recently come about when we upgraded to GrADS 2.  Do I need  
>>> to add
>>> to my control file something for this to work?
>>>
>>> Thanks!
>>> Phil
>>>
>>>
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>> --
>> Jennifer M. Adams
>> IGES/COLA
>> 4041 Powder Mill Road, Suite 302
>> Calverton, MD 20705
>> jma at cola.iges.org
>>
>>
>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
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>>
> _______________________________________________
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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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