Re: vector doesn't appear

From: David Brown <dbrown_at_nyahnyahspammersnyahnyah>
Date: Fri Sep 16 2011 - 14:21:22 MDT

I think there was a typo. It should be "default_fillvalue", as stated in the text.
 -dave

On Sep 16, 2011, at 2:19 PM, ahmed lasheen wrote:

> thank you , it is know working very well.
> just when i put the default_missing function,it gives me the following error
> fatal:Undefined identifier: (default_missing) is undefined, can't continue
> thanks
>
> On Fri, Sep 16, 2011 at 10:43 PM, Mary Haley <haley@ucar.edu> wrote:
> Dear Ahmed,
>
> Thanks for providing your script and data offline.
>
> The fix is pretty simple. You had named the dimensions of "u" and "v" correctly, but you
> need additional code to attach the coordinate arrays.
>
> After this code:
>
> u!0="for_time"
> u!1="lat"
> u!2 ="lon"
> v!0="for_time"
> v!1="lat"
> v!2 ="lon"
>
> Add this code:
>
> ;---Attach coordinate arrays to u and v
> u&lat = lat
> u&lon = lon
> v&lat = lat
> v&lon = lon
>
>
> Furthermore, I noticed you are hard-coding your missing values:
>
> u@_FillValue=9.96921e+36
> v@_FillValue=9.96921e+36
>
> If you are using NCL V6.0.0, then you can use the "default_fillvalue" function, which gives the same values:
>
> u@_FillValue = default_missing("float")
> v@_FillValue = default_missing("float")
>
> --Mary
>
>
> On Sep 16, 2011, at 8:27 AM, ahmed lasheen wrote:
>
>> hello every body
>> i am trying to plot the wind velocity for the wam model , but i have a problem in drawing them
>> i have wind speed and wind direction and from them i calculate the u and v to draw them
>> .
>> i used the overlay function , gsn_csm_map and gsn_csm_vector
>> the script and the grib file are attached in the email
>> thanks in advance
>>
>> --
>> ===============
>> Ahmed Lasheen
>> Junior researcher at Cairo Numerical Weather Prediction Center (CNWPC)
>> Egyptian Meteorological Authority(EMA)
>> Cairo,Egypt
>> ===============
>>
>
>
>
>
> --
> ===============
> Ahmed Lasheen
> Junior researcher at Cairo Numerical Weather Prediction Center (CNWPC)
> Egyptian Meteorological Authority(EMA)
> Cairo,Egypt
> ===============
>
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Received on Fri Sep 16 16:21:23 2011

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