[gradsusr] possible bug in define mode

[Stefano Materia]

I think you are right, Ricardo: it's probably my mistake.
As far as I understand, u;v is only a way to plot, and I can't store 
such an information.

Thanks everyone for your help.
Stefano

On 2/29/12 6:17 PM, Ricardo Hallak wrote:
> Hi Stefano,
>
> Correcte me someone if necessary, but I think that "define" can save just
> ORDINARY FIELDS, not VECTOR FIELDS.
>
> Regards,
> Ricardo
>
> On Wed, 29 Feb 2012 17:16:39 +0100, Stefano Materia wrote
>> Thanks Muhammad,
>> this actually works if I display wind;vw
>> But again, if I use "wind" in a define expression, it doesn't go well.
>>
>> define arrows  = wind;vw
>>
>> Syntax error: expected operator or ')'
>> Error occurred at column 23
>>
>> Now, I would really need to define this quantity because I'm going
>> to use it later. Is there a way to do that?
>>
>> Thanks for your help.
>> Stefano
>>
>> On 2/29/12 1:37 PM, afzaalkarori wrote:
>>> 		
>>> 	
>>> Dear Stefano
>>> Redefine u-component separately. something like
>>> ->  wind = skip(uw,8,8)
>>> then plot
>>> ->  d wind;vw
>>> It should work
>>> Good Luck!
>>> 2012-02-29
>>> ------------------------------------------------------------------------
>>> Muhammad Afzaal Karori
>>> Institute of Atmospheric Physics
>>> Chinese Academy of Sciences
>>> Beijing - P.R. China
>>> ------------------------------------------------------------------------
>>> *???:* Stefano Materia
>>> *????:* 2012-02-29  20:15:52
>>> *???:* gradsusr
>>> *??:*
>>> *??:* [gradsusr] possible bug in define mode
>>> Hi everyone,
>>> I am using Grads 2.0.0.oga.1 and I am facing an odd issue.
>>> When I try to define an expression for plotting wind vectors in this way:
>>> define wind=skip(uw,8,8);vw
>>> (where uw and vw are the two horizontal components), I get the following
>>> error:
>>> Syntax error: expected operator or ')'
>>> Error occurred at column 23
>>> Grads displays wind arrows in a proper way, instead, when I plot the
>>> expression directly:
>>> d skip(uw,8,8);vw
>>> Bets regards,
>>> Stefano Materia
>>> _______________________________________________
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>>> gradsusr at gradsusr.org
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>>>
>>> 	
>>>
>>>
>>>
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>
> Ricardo Hallak
>
> Department of Atmospheric Sciences (DCA)
> Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG)
> University of São Paulo (USP)
> Rua do Matão, 1226 - Cidade Universitária - São Paulo SP 05508-900
> Phone.: +55 (11) 3091-2850; 3091-4703
> Fax: +55 (11) 3091-4714
>
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