[GRASS-user] v.to.rast not working?

Hi all.

When V.to.rast starts - my computer hangs. It takes most of memory and I have to kill the process to get my laptop back. I first encountered this whil trying to run v.rast.stats. Later I just tried to run v.to.rast whith the same error. It seems to run (taking all memory and much time) Loading data…
Pass 1 of 58:
Reading features…
100%
Writing raster map…
Killed
GRASS 6.4.2

I tried waiting for a while after “Writing raster map” but no luck.

Any help or suggestions for diagnostic is welcome…

Martin

On 07/12/12 10:12, Martin Album Ytre-Eide wrote:

Hi all.

When V.to.rast starts - my computer hangs. It takes most of memory and I
have to kill the process to get my laptop back. I first encountered this
whil trying to run v.rast.stats. Later I just tried to run v.to.rast
whith the same error. It seems to run (taking all memory and much time)
Loading data...
Pass 1 of 58:
Reading features...
100%
Writing raster map...
Killed
GRASS 6.4.2

I tried waiting for a while after "Writing raster map" but no luck.

Any help or suggestions for diagnostic is welcome......

Probably your region is too large and resolution to fine. Check with g.region -p.

Moritz

Output raster map will have bounds and resolution of current
computational region. It doesn't matter if You have any data there or
not. I'm not familiar with v.to.rast code, still it might try to hold
raster in RAM and thus explain Your observed behaviour.

Maris.

2012/12/7 Martin Album Ytre-Eide <Martin.Album.Ytre-Eide@nrpa.no>:

Thanks...., why did I not try that...... Why do region actually matter? I mean, I get the resolution part, but for me it helped just reducing the computational region. Why should that matter - it is the same features that are converting or do you also get a lot of NULL values in the produced raster?

Martin

________________________________________
Fra: Maris Nartiss [maris.gis@gmail.com]
Sendt: 7. desember 2012 10:19
To: Martin Album Ytre-Eide
Emne: Re: [GRASS-user] v.to.rast not working?

Check the size of computational region. Just decrease resolution and
You will be fine.

2012/12/7 Martin Album Ytre-Eide <Martin.Album.Ytre-Eide@nrpa.no>:

Hi all.

When V.to.rast starts - my computer hangs. It takes most of memory and I
have to kill the process to get my laptop back. I first encountered this
whil trying to run v.rast.stats. Later I just tried to run v.to.rast whith
the same error. It seems to run (taking all memory and much time) Loading
data...
Pass 1 of 58:
Reading features...
100%
Writing raster map...
Killed
GRASS 6.4.2

I tried waiting for a while after "Writing raster map" but no luck.

Any help or suggestions for diagnostic is welcome......

Martin

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