[GRASS-user] r.what.rast.buffer crash

GRASS GRASS user
1

Hi there!

I just started using GRASS GUI a few days ago so please bear with me if this
is a newbie question (tried searching on forums etc. but could not find a
solution).

I want to use r.what.rast.buffer to calculate the average of a raster within
a buffer from points. When I run the addon it produces the following output:

v.what.rast.buffer.bat --verbose input=epoint@climate
raster=wetavr_raster@climate buffer=100 output=C:\Users\okonk\test2
[wetavr_raster@climate]
v.what.rast.buffer -- epoint@climate -> wetavr_raster@climate @ 100 m
Using resolution from: wetavr_raster@climate
Extracting [wetavr_raster@climate] at [epoint@climate]

At this point the computer hangs and Windows gives me a "v.out.ascii.exe has
stopped working - a problem caused the program to stop working correctly"
message. When I click "close program" the command output says "done!" but
the output ascii file is empty.

Thanks in advance!

Nicolai

--
View this message in context: http://osgeo-org.1560.n6.nabble.com/r-what-rast-buffer-crash-tp4558773p4558773.html
Sent from the Grass - Users mailing list archive at Nabble.com.

2

I have tried it on several different computers now and I get the exact same
error message.

Am I the first one to encounter this problem? Or am I missing something
obvious?

It would really make my day if someone could help me out on this.

Nicolai

--
View this message in context: http://osgeo-org.1560.n6.nabble.com/r-what-rast-buffer-crash-tp4558773p4655952.html
Sent from the Grass - Users mailing list archive at Nabble.com.

3

Hi Nicolai,

I’ve never used that add-on before, but it sounds like something’s causing v.out.ascii to crash. Perhaps it’s a memory issue? Years ago, when I started using GRASS, I ended up switching to Linux because it just worked better in Linux. AFAIK there are still some parts of GRASS that work better in Linux than in Windows, although I’m not sure if this is one of them. Is your vector file very large? It might be too large for your RAM, if that’s the case - otherwise I’m sadly also pretty clueless.

Best,
Daniel

–

B.Sc. Daniel Lee
Geschäftsführung für Forschung und Entwicklung
ISIS - International Solar Information Solutions GbR
Vertreten durch: Daniel Lee, Nepomuk Reinhard und Nils Räder

Deutschhausstr. 10
35037 Marburg
Festnetz: +49 6421 379 6256
Mobil: +49 176 6127 7269
E-Mail: Lee@isi-solutions.org
Web: http://www.isi-solutions.org

ISIS wird gefördert durch die Bundesrepublik Deutschland, Zuwendungsgeber: Bundesministerium für Wirtschaft und Technologie aufgrund eines Beschlusses des Deutschen Bundestages, sowie durch die Europäische Union, Zuwendungsgeber: Europäischer Sozialfonds.
Zusätzliche Unterstützung erhält ISIS von dem Entrepreneurship Cluster Mittelhessen, der Universität Marburg, dem Laboratory for Climatology and Remote Sensing und dem GIS-Lab Marburg.

Am 26. März 2012 09:57 schrieb NicolaiK <nicolaikaarsen@hotmail.com>:

I have tried it on several different computers now and I get the exact same
error message.

Am I the first one to encounter this problem? Or am I missing something
obvious?

It would really make my day if someone could help me out on this.

Nicolai

–
View this message in context: http://osgeo-org.1560.n6.nabble.com/r-what-rast-buffer-crash-tp4558773p4655952.html

Sent from the Grass - Users mailing list archive at Nabble.com.

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

4

Thanks a lot for your quick reply!

The point data in vector format is only around 1200 observations, so it
shouldn't cause any problems, I guess. However, I tried creating a test
subset consisting of only 2 points. Again I get the same error. :frowning:

I guess next step to try is to run it on Linux. I have been a bit reluctant
to do that since I've never used Linux before, but if it makes it work it'll
be worth it. Will keep you posted once I find out whether that solves the
problem.

Best,

Nicolai

--
View this message in context: http://osgeo-org.1560.n6.nabble.com/r-what-rast-buffer-crash-tp4558773p4656779.html
Sent from the Grass - Users mailing list archive at Nabble.com.

5

Hi Nicolai,

That does sound strange. Now, I can’t guarantee that everything will work better on Linux (the devs would be the people most likely to know about the differences in functionality on Windows and Linux), but my personal experience with Linux is that it’s actually a much easier environment to work in, once you’ve gotten used to it. I don’t want to clog the GRASS list with Linux propaganda, but if you’re wanting to know more about Linux and kind of how to get started, don’t hesitate to write me off the list. There’s also a lot of great material on the web in general on just that topic.

Daniel

–

B.Sc. Daniel Lee
Geschäftsführung für Forschung und Entwicklung
ISIS - International Solar Information Solutions GbR
Vertreten durch: Daniel Lee, Nepomuk Reinhard und Nils Räder

Deutschhausstr. 10
35037 Marburg
Festnetz: +49 6421 379 6256
Mobil: +49 176 6127 7269
E-Mail: Lee@isi-solutions.org
Web: http://www.isi-solutions.org

ISIS wird gefördert durch die Bundesrepublik Deutschland, Zuwendungsgeber: Bundesministerium für Wirtschaft und Technologie aufgrund eines Beschlusses des Deutschen Bundestages, sowie durch die Europäische Union, Zuwendungsgeber: Europäischer Sozialfonds.
Zusätzliche Unterstützung erhält ISIS von dem Entrepreneurship Cluster Mittelhessen, der Universität Marburg, dem Laboratory for Climatology and Remote Sensing und dem GIS-Lab Marburg.

Am 26. März 2012 14:59 schrieb NicolaiK <nicolaikaarsen@hotmail.com>:

Thanks a lot for your quick reply!

The point data in vector format is only around 1200 observations, so it
shouldn’t cause any problems, I guess. However, I tried creating a test
subset consisting of only 2 points. Again I get the same error. :frowning:

I guess next step to try is to run it on Linux. I have been a bit reluctant
to do that since I’ve never used Linux before, but if it makes it work it’ll
be worth it. Will keep you posted once I find out whether that solves the
problem.

Best,

Nicolai

–
View this message in context: http://osgeo-org.1560.n6.nabble.com/r-what-rast-buffer-crash-tp4558773p4656779.html

Sent from the Grass - Users mailing list archive at Nabble.com.

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

6

I never tried that particular script also so I don’t know much but, one thing to try is run the commands separately. Open the script file v.what.rast.buffer on a text editor and try to run the commands in the script by hand. Then you can find where the problem happens.
Cheers
Daniel

On Mar 26, 2012 4:57 AM, “NicolaiK” <nicolaikaarsen@hotmail.com> wrote:

I have tried it on several different computers now and I get the exact same
error message.

Am I the first one to encounter this problem? Or am I missing something
obvious?

It would really make my day if someone could help me out on this.

Nicolai

–
View this message in context: http://osgeo-org.1560.n6.nabble.com/r-what-rast-buffer-crash-tp4558773p4655952.html
Sent from the Grass - Users mailing list archive at Nabble.com.

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user