On Thu, Apr 2, 2009 at 6:37 PM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
On 02/04/09 18:12, Moritz Lennert wrote:
On 02/04/09 16:58, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 4:51 PM, Moritz Lennert
On 02/04/09 16:00, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 1:43 PM, Markus
On 03/04/09 08:43, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 6:37 PM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
On 02/04/09 18:12, Moritz Lennert wrote:
On 02/04/09 16:58, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 4:51 PM, Moritz Lennert
On 02/04/09 16:00, Markus Neteler
On Fri, Apr 3, 2009 at 9:20 AM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
...
Ok, try the attached diff to grass6 head.
It implements the same behaviour for all data types: null values are sorted
to the end.
Perfect, this works. Please submit.
Markus
On 03/04/09 09:31, Markus Neteler wrote:
On Fri, Apr 3, 2009 at 9:20 AM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
...
Ok, try the attached diff to grass6 head.
It implements the same behaviour for all data types: null values are sorted
to the end.
Perfect, this works. Please
Paolo,
On Fri, Apr 3, 2009 at 10:04 AM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
On 03/04/09 09:31, Markus Neteler wrote:
On Fri, Apr 3, 2009 at 9:20 AM, Moritz Lennert
...
It implements the same behaviour for all data types: null values are
sorted to the end.
Perfect, this works.
Markus Neteler ha scritto:
now it dissolves the map as expected.
Also backported to 6.3 if that helps for you.
Thanks a lot to all!
--
Paolo Cavallini: http://faunalia.it/pc
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Michael Barton ha scritto:
Do you have a lot of null cells in your region?
None. Tested also with a r.fractal surface, same results.
All the best.
--
Paolo Cavallini: http://faunalia.it/pc
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Glynn Clements ha scritto:
The entire notion of least cost is based upon the assumption that
the cost must always be non-negative.
Bingo, you got it!
I had (by my mistake in mapcalc parameters) a few negative cells.
Now r.cost runs, and I'doing further testing.
I think your suggestions should
On Wed, Apr 1, 2009 at 6:05 PM, Paolo Cavallini cavall...@faunalia.it wrote:
Hi all.
I cannot get a result from v.dissolve:
v.dissolve input=reg...@nuovo layer=1 column=REGIAO output=reg_diss
dbmi: Protocol error
Cannot open select cursor: SELECT cat, REGIAO FROM regiao ORDER BY REGIAO
On Thu, Apr 2, 2009 at 1:43 PM, Markus Neteler nete...@osgeo.org wrote:
On Wed, Apr 1, 2009 at 6:05 PM, Paolo Cavallini cavall...@faunalia.it wrote:
Hi all.
I cannot get a result from v.dissolve:
v.dissolve input=reg...@nuovo layer=1 column=REGIAO output=reg_diss
dbmi: Protocol error
On 02/04/09 16:00, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 1:43 PM, Markus Neteler nete...@osgeo.org wrote:
On Wed, Apr 1, 2009 at 6:05 PM, Paolo Cavallini cavall...@faunalia.it wrote:
Hi all.
I cannot get a result from v.dissolve:
v.dissolve input=reg...@nuovo layer=1 column=REGIAO
On Thu, Apr 2, 2009 at 4:51 PM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
On 02/04/09 16:00, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 1:43 PM, Markus Neteler nete...@osgeo.org wrote:
On Wed, Apr 1, 2009 at 6:05 PM, Paolo Cavallini cavall...@faunalia.it
v.dissolve
On 02/04/09 16:58, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 4:51 PM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
On 02/04/09 16:00, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 1:43 PM, Markus Neteler nete...@osgeo.org wrote:
On Wed, Apr 1, 2009 at 6:05 PM, Paolo Cavallini
On 02/04/09 18:12, Moritz Lennert wrote:
On 02/04/09 16:58, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 4:51 PM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
On 02/04/09 16:00, Markus Neteler wrote:
On Thu, Apr 2, 2009 at 1:43 PM, Markus Neteler nete...@osgeo.org
wrote:
On Wed, Apr 1,
Hi all.
I cannot get a result from v.dissolve:
v.dissolve input=reg...@nuovo layer=1 column=REGIAO output=reg_diss
dbmi: Protocol error
Cannot open select cursor: SELECT cat, REGIAO FROM regiao ORDER BY REGIAO
Unable to open vector map on topology level 2
Table linked to vector map does not
Furthermore, I launched r.cost on a 295 rows, 378 cols matrix, and it's
taking 1h, whereas I did the same previously and it ran in tens of
seconds.
The speed of r.cost depends not just on the number of cells but also
the complexity of the surface. Smoother surfaces seem to take longer
than
Colin Nielsen ha scritto:
The speed of r.cost depends not just on the number of cells but also
the complexity of the surface. Smoother surfaces seem to take longer
than rough ones, I think because there are more possibilities for the
algorithm to explore.
Thanks for this Colin, I'm going to
Colin Nielsen ha scritto:
However, if you're getting into the hours, I would think it's more
likely that your region settings changed. Check g.region -p to be
sure.
Even if I bring resolution down to a ridiculous amount, it still takes
forever:
GRASS g.region -p
projection: 99 (Transverse
Hi
2009/4/1 Paolo Cavallini cavall...@faunalia.it:
But, is r.cost working for somebody else?
r.cost is working for me (Ubuntu 8.10):
GRASS 6.5.svn (nc_spm_08):~ r.cost -k streets_travtime
output=streets_cost coor=634886,224328 --overwrite
Reading raster map streets_travt...@user1...
100%
On Wed, Apr 1, 2009 at 6:05 PM, Paolo Cavallini cavall...@faunalia.it wrote:
Hi all.
I cannot get a result from v.dissolve:
v.dissolve input=reg...@nuovo layer=1 column=REGIAO output=reg_diss
dbmi: Protocol error
Cannot open select cursor: SELECT cat, REGIAO FROM regiao ORDER BY REGIAO
On Apr 1, 2009, at 12:47 PM, grass-user-requ...@lists.osgeo.org wrote:
From: Paolo Cavallini cavall...@faunalia.it
Date: April 1, 2009 10:31:04 AM GMT-07:00
To: Colin Nielsen colin.niel...@gmail.com
Cc: grass-user grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] v.dissolve and r.cost
Colin Nielsen wrote:
Lastly, there seems to be a bug in r.cost that causes it to get
confused on surfaces with lots of negative values (try running r.cost
on a surface made by r.surf.fractal to see this). In these cases, I
think it never finishes.
That makes sense. If a group of adjacent
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