[GRASS-user] r.buffer not working

[Daniel Victoria]

Hi Helmut,

You are right, It's probably an out of memory problem. By reducing the
resolution, r.buffer runs without a problem.

Thanks
Daniel

On Mon, Nov 7, 2016 at 10:08 AM, Helmut Kudrnovsky <hellik at web.de> wrote:

> DanielV wrote
> > Hi List,
> >
> > Trying to run r.buffer on a map with values 1 or null (it's an
> agriculture
> > area map with only one class). I tried with multiple distances and only
> > one
> > distance and in both cases, I recieve an error that Grass 7 stoped
> working
> > and that windows will close the program.
> >
> > I'm running grass7 on Win10, installed throuhg OsGeo4W 64bit. I get the
> > same error using Grass 7.0.5 and 7.3.svn. I'm running this on a quite
> > large
> > region...
> >
> > projection: 99 (Polyconic (American))
> > zone:       0
> > datum:      towgs84=0,0,0,0,0,0,0
> > ellipsoid:  grs80
> > north:      9800010
> > south:      7050000
> > west:       4200000
> > east:       6450000
> > nsres:      30
> > ewres:      30
> > rows:       91667
> > cols:       75000
> > cells:      6875025000
> >
> > Anyone seen this problem?
>
> testing here on
>
> System Info
> GRASS Version: 7.3.svn
> GRASS SVN revision: r69783
> Build date: 2016-11-07
> Build platform: x86_64-w64-mingw32
> GDAL: 2.1.2
> PROJ.4: 4.9.3
> GEOS: 3.5.0
> SQLite: 3.14.1
> Python: 2.7.5
> wxPython: 2.8.12.1
> Platform: Windows-8-6.2.9200 (OSGeo4W)
>
> in the NC sample data set:
>
> g.region -p
> projection: 99 (Lambert Conformal Conic)
> zone:       0
> datum:      nad83
> ellipsoid:  a=6378137 es=0.006694380022900787
> north:      228500
> south:      215000
> west:       630000
> east:       645000
> nsres:      0.2
> ewres:      0.2
> rows:       67500
> cols:       75000
> cells:      5062500000
>
> r.buffer --verbose input=myrast at user1 output=myrast_buffer3 distances=500
> Lese Eingabe-Rasterkarte <myrast at user1>...
>
> here it uses quite a lot of memory, slows down the computer and it takes a
> long time to finisg ... so it's maybe an running-out-of-memory on your
> side?
>
>
>
>
> -----
> best regards
> Helmut
> --
> View this message in context: http://osgeo-org.1560.x6.
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