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20030401: A curious [NGD 0] error in NMAP2

>From: address@hidden
>Organization: UCAR/Unidata
>Keywords: 200304012140.h31Le97U006562

>Hello Unidata support..
>
>I have been having some success at displaying our data in NMAP2. The images
>appear to be produced pretty well.
>
>However, even when images appear to be o.k. on the screen, I notice the
>ERROR box has turned red and says that I have [NGD 0] errors.
>
>I have not been able to find info on this.
>
>Would you have some info I could use to help eliminate this error? 
>
>Many thanks in advance.
>
>Lewis Poulin
>CMC-Montreal
>

Lewis, 
The value of the error return of "0" being printed out means that
the plot succeeded. You should only need to worry about these if 
the status is non-zero.

I see where the logging exists in $GEMPAK/source/programs/gui/nmap2/nmap_dsp.c
(line 1171), ane the call to er_wmsg should likely check first 

if (ier != 0)
        er_wmsg...

That would avoid unnecessary truning the error button RED.

Steve Chiswell
Unidata WWW Service              http://my.unidata.ucar.edu/content/support