[GRASS-user] Reprojection from LLC to UTM (various zones)

Maciej Sieczka tutey at o2.pl
Mon Aug 27 14:08:11 EDT 2007

Miriam Espan~a wrote:

> yes, Maciek, I'm visualizing 3D voxels map, that are in lcc proyection,
> covering the next area:
> north: 48.070938 (degrees)
> south: 21.178000 (degrees)
> east: -68.766000 (degrees)
> west: -109.461250 (degrees)
> top: 14551.891 (meters)
> bottom: 36.294 (meters)

lcc units are not degrees. What does the "g.region -g" and "g.proj -p" say?

> from an ascii 3d file. I have a DEM (500 km resolution) that covers all the
> world,

The whole Earth in a conic projection? Something's wrong here.

> that I can see in Nviz (sometimes the corners of the dem are lost in
> the infinite).
> I visualize a volume over the orography (dem).
> Sometimes, nviz crashes, but the reason to transform maps from lcc to utm is
> because of the visualization of the isosufarces is not correct in lambert,
> and it was suggested to me in the irc, that nviz can't manage voxels 3d in 
> lcc, only XY or maybe UTM.

As Glynn already has pointed out, that's not correct.


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