[GRASS-user] Re: [Qgis-user] error with r.cost

Hamish hamish_b at yahoo.com
Mon Apr 11 09:19:05 EDT 2011


Markus wrote:
> > you need to check the region extent + resolution, probably
> > you are exceeding the available RAM if you are having too
> > many rows and columns.
> >
> > Get the information with:
> > g.region -p
> >
> > or the respective menu entry.

ambijat wrote:
> I am using a mask so as to limit my operation.
...
> But, now I am stuck with a new thing and this is with
> r.walk. I am still performing this operation on F14. But,
> there is a crash everytime.

is it the the same G_alloc() error message? if not, what does
the crash report say? if so it means you do not have enough
memory, which usually happens when the raster region/resolution
is set to crazy values.

As Markus asked, what does the region information from
"g.region -p" say? Is it more than ~ 40000x40000 rows and
columns?


Hamish



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