[GRASS5] NVIZ updates

[Bob Covill]

Helena,

I have applied a couple of nviz fixes to CVS.

I could not re-produce the GISDBASE error, but it was being generated 
from the fileBrowser.tcl script. It was looking from an "images" 
directory in your mapset. It is probably a throw-back to an earlier 
version for saving screen-captures to an "images" directory in your 
mapset. I have removed reference to GISDBASE and the the fileBrowser 
simply starts in your current directory (pwd).

I also fixed an error in attIsosurfPopup.tcl which complained about an 
unknown reference to DEBUG.

Everything else seems to be working fine.

--
Bob

Helena wrote:
> 
> I have added 2 modfications from Tomas to nviz volume support:
> 
> 1. Default polygon resolution for drawing isosurfaces is now a smaller 
> number
> (higher resolution) to avoid situation when nothing is drawn.
> 
> 2. Load state/Save state was added for volume objects.
> 
> Bob, after the nviz startup has changed, Load state/Save state does not 
> work
> - it gives an Error: can't read env(GISDBASE)
> Can this be fixed before the release or should I file a bug report?
> 
> Let me know if there are any problems with the new additions,
> 
> Helena
>