Hello!
I am running a loop with several r.mapcalc. I am using GRASS 7.1. The function stops with an error:
ERROR: Error reading null row 8 for
I’ve noticed that Paulo van Breugel, had the same error but I didn’t see the solution to it. Obviously it has something to do with the raster called MASK, created with r.mask before running the loop of multiple r.mapcalc.
The code itself has no problem and is very simple and works just fine with the same list of images, but without running r.mask first.
On Mon, May 4, 2015 at 8:05 PM, Alba German <albagerman@gmail.com> wrote:
Hello!
I am running a loop with several r.mapcalc. I am using GRASS 7.1. The
function stops with an error:ERROR: Error reading null row 8 for <MASK>
I've noticed that Paulo van Breugel, had the same error but I didn't see the
solution to it. Obviously it has something to do with the raster called
MASK, created with r.mask before running the loop of multiple r.mapcalc.
The code itself has no problem and is very simple and works just fine with
the same list of images, but without running r.mask first.
Hi Alba,
could you post that part of the code e.g. here
http://pastebin.com/
? It sounds like a race condition...
Markus
2015-05-04 15:36 GMT-03:00 Markus Neteler <neteler@osgeo.org>:
On Mon, May 4, 2015 at 8:05 PM, Alba German <albagerman@gmail.com> wrote:
Hello!
I am running a loop with several r.mapcalc. I am using GRASS 7.1. The
function stops with an error:ERROR: Error reading null row 8 for
I’ve noticed that Paulo van Breugel, had the same error but I didn’t see the
solution to it. Obviously it has something to do with the raster called
MASK, created with r.mask before running the loop of multiple r.mapcalc.
The code itself has no problem and is very simple and works just fine with
the same list of images, but without running r.mask first.Hi Alba,
could you post that part of the code e.g. here
http://pastebin.com/? It sounds like a race condition…
Markus
On Tue, May 5, 2015 at 1:49 PM, Alba German <albagerman@gmail.com> wrote:
I don't see any obvious mistake in your Python script. Perhaps a North
Carolina based use case may help us to find the issue.
Markus
On 5 May 2015 at 13:49, Alba German <albagerman@gmail.com> wrote:
could you send the output of "r.info puntosmonitoreo"
--
ciao
Luca
http://gis.cri.fmach.it/delucchi/
www.lucadelu.org
And just to be sure - OS and Python version.
I was observing some strange error on Windows some time a go while
running similar simple loop script. As on Linux it was fine, I wasn't
investigating it any further.
Maris.
2015-05-05 23:49 GMT+03:00 Luca Delucchi <lucadeluge@gmail.com>:
On 5 May 2015 at 13:49, Alba German <albagerman@gmail.com> wrote:
could you send the output of "r.info puntosmonitoreo"
--
ciao
Lucahttp://gis.cri.fmach.it/delucchi/
www.lucadelu.org
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On 04-05-15 20:36, Markus Neteler wrote:
On Mon, May 4, 2015 at 8:05 PM, Alba German <albagerman@gmail.com> wrote:
Hello!
I am running a loop with several r.mapcalc. I am using GRASS 7.1. The
function stops with an error:ERROR: Error reading null row 8 for <MASK>
I've noticed that Paulo van Breugel, had the same error but I didn't see the
solution to it.
You are referring to this email: http://lists.osgeo.org/pipermail/grass-dev/2014-September/070584.html. Can't recall how / if I solved this, but I haven't encountered it recently. The difficult part of it was that it appeared to happen at random, i.e., the same function and same data would run without problem in one instance and end with the above-mentioned error in another instance.
Obviously it has something to do with the raster called
MASK, created with r.mask before running the loop of multiple r.mapcalc.
The code itself has no problem and is very simple and works just fine with
the same list of images, but without running r.mask first.Hi Alba,
could you post that part of the code e.g. here
http://pastebin.com/? It sounds like a race condition...
Markus
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grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev
Hi all!
Here is the output of the file I use for masking. It was a vector transformed to raster, and I use each pixel with different value as a mask. I need the value per pixel to perform the r.mapcalc.
GRASS 7.1.svn (latlong):~ > r.info puntosmonitoreo
2015-05-06 4:20 GMT-03:00 Paulo van Breugel <p.vanbreugel@gmail.com>:
On 04-05-15 20:36, Markus Neteler wrote:
On Mon, May 4, 2015 at 8:05 PM, Alba German <albagerman@gmail.com> wrote:
Hello!
I am running a loop with several r.mapcalc. I am using GRASS 7.1. The
function stops with an error:ERROR: Error reading null row 8 for
I’ve noticed that Paulo van Breugel, had the same error but I didn’t see the
solution to it.You are referring to this email: http://lists.osgeo.org/pipermail/grass-dev/2014-September/070584.html. Can’t recall how / if I solved this, but I haven’t encountered it recently. The difficult part of it was that it appeared to happen at random, i.e., the same function and same data would run without problem in one instance and end with the above-mentioned error in another instance.
Obviously it has something to do with the raster called
MASK, created with r.mask before running the loop of multiple r.mapcalc.
The code itself has no problem and is very simple and works just fine with
the same list of images, but without running r.mask first.Hi Alba,
could you post that part of the code e.g. here
http://pastebin.com/? It sounds like a race condition…
Markus
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