20040827: Gempak - radmap/nex2img questions

Dana,

The radmap program requies an X server using the "gf" driver, whereas 
the radmap_sw uses the software rendering "gif" driver. If you
want to use the radmap program without an X server, you need to use radmap_sw.

The GSDEVA -83 error ($GEMERR/gemplt.err) means that the X server
was not able to be contacted (either the DISPLAY variable was not
set, or the server denied connection the user/cron running the program).

I didn't get any attatchment for your radmap_sw error.


The colors, tables, maps in radmap are hardcoded so that
the program does not spend time loading the GEMPAK environment
(which is what the developers of that program wanted for fast startup).
For more control, using gpmap or similar program gives better flexibility.

Steve Chiswell
Unidata User SUpport




>From: "Dana Price" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200408271936.i7RJaPTq004848

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>Institution: Rutgers University Environmental Sciences
>Package Version: 5.7.2p2
>Operating System: RedHat Enterprise 3
>Hardware Information: Dell PIII
>Inquiry: I'm trying to use radmap to plot nnexrad nids data with the following
> :
>
>radmap -s /data/ldm/gempak/nexrad/NIDS/DIX/N0R/N0R_20040827_1816 output.gif "t
> est"
>
>I get the error:
>
>RADMAP:  GSDEVA - ier =  -83
>
>I've got all the required files from the README in the current (working) direc
> tory.  If I try radmap_sw with the same, it segfaults on me.  Am I doing some
> thing wrong?  What are the differences between radmap and _sw?  I couldn't fi
> nd this in the source.  I've tried the binary linux release, and compiled it 
> from source as well.  I've attached the strace output in case it's useful.
>
>Also, I've plotted these nids products with nex2img.  Is there a way to plot i
> t over the standard map backgrounds and colorbars? $mapfil dosent seem to wor
> k in this case, the echoes are always over a black background.
>
>Thanks!
>Dana
>
>
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