[GRASS-user] Vector Overlay Map Disappears in 3D View
Hamish
hamish_b at yahoo.com
Tue Jan 17 18:30:59 EST 2012
Hamish:
> > check your computational region with 'g.region -p'.
> > The resolution should be set so that rows and columns do not
> > exceed ~ 40000 x 40000 or so. (unless you have lots of RAM)
Rich wrote:
> Could it be the resolution, not the number of rows x columns:
>
> nsres: 2.95172027
> ewres: 2.03037658
> rows: 7372
> cols: 14816
> cells: 109223552
the two are just a function of one another. there will be some natural
minimum ground resolution size for your elevation data though beyond
which you are just recording noise.
use "g.region -a res=" to get a nice round numbered resolution.
while large, that rows x columns does not seem unreasonably huge for a
system with 4GB of RAM. (depends on what else you are running at the same
time I guess)
Hamish
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