[GRASS-user] Problem with Nviz : first post

[Maciek Sieczka]

Welcome!

On Tue, 6 Jun 2006 21:47:51 +0100
"Prof Darrel Maddy" <darrel.maddy at ncl.ac.uk> wrote:

> I have managed to get GRASS6 up and running on fedora core 5 (after
> some "fun" installing tcl/tk libraries). When I enter Nviz and try to
> display the elevation.dem from the Spearfish60 sample dataset the
> visualisation appears for about 10 seconds and then disappears - no
> error messages are reported to help sort the problem. The control
> window is empty.

What happens if you issue the 'nviz elev=elevation.dem' from CLI?
Please copy/paste the text output here (tcltk GUI tends to hide some
low level errors, like segfault, from the user).

Do you know that you must set the region to match the elevation.dem
first (g.region rast=elavation.dem) for NVIZ (and most any other
display module) to be able to display it?

> I may have confused the software with my tcl/tk installation antics -
> I now have both tcl/tk 8.4 and 8.5 libaries in my /usr/lib directory
> but only the 8.4 library is reported when I test the installation in
> the command window. I do not know how to uninstall 8.5 (I could not
> get GRASS to work with the 8.5 libraries). Is this the source of my
> problem or am I completely missing the point?

Grass supports 8.3 and 8.4.

As to removing your 8.5 instalation - did you install it using rpm? On
Fedora, 'rpm -e thepackage' or 'yum' equivalent should do it (read 'man
rpm', 'man yum'). 

Maciek

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