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990125: Gempak Status--Update!

Jim,

When you run ntl, it tries to allocate 128 colors for
satellite images, 33 for graphics, and 16 for radar images.

That adds up to 177 or so colors, and for 8 bit graphics, that means
that you definitely have to launch ntl before color hogs like
web browsers. I even found that the fvwm needed too many colors
on one machine. Generally, if you launch ntl before a browser, you
can get the colors needed, and most web browsers can negotiate
the color map by themselves.

You can however launch ntl with command line options to allocate fewer
colors. For instance, you might be happy looking at satellite images using
64 colors, and save 64 colors. To launch this way, "ntl -s 64".
The -s is the flag for satellite allocation. If ntl fails,
then it usually tells you how many colors are available and how
many it needs. You can use this output to see how much you have to cut
down your request for.

Steve Chiswell
Unidata User Support



On Sat, 23 Jan 1999, Jim Koermer wrote:

> Chiz,
> 
> We had forgotten to install the MOTIF libraries when we upgraded the
> system. This is why we were missing some shared X libraries. I can now
> run "garp" and "nwx" and bring up the GUI interfaces. I need to work on
> my data paths a bit, but I think all is now well. I think our student
> will really like the additional capability.
> 
> I did notice that nwx (or garp) must require a graphics card with quite
> a bit of VRAM. They would not run on the server on which it was
> installed as it gave an error message that it couldn't allocate enough
> colors. That machine only has 2 MB VRAM and we've ordered an upgrade.
> However, it ran fine using another machine as the DISPLAY device.
> 
> Thanks for your help. I'll let you know if I encounter any problems.
> 
>                               Jim
> --
> James P. Koermer                    E-Mail: address@hidden
> Professor of Meteorology            Office Phone: (603)535-2325
> Chair, Natural Science Department   Office Fax: (603)535-2723
> Plymouth State College              WWW: http://vortex.plymouth.edu/
> Plymouth, NH 03264
>