[GRASS-user] r.buffer not working

[Helmut Kudrnovsky]

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.nabble.com/r-buffer-not-working-tp5294594p5294597.html
Sent from the Grass - Users mailing list archive at Nabble.com.