Hi Victor
That sounds excellent!
Thank you very much!
Maybe I should mention, that the userfriendly cleaning option through
Sextante, will make me even more confident to promote QGIS as the most
appropriate GIS for the field biologists in my institute...
Cheers
Stefan
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Hi Victor,
Maybe a wrapper of v.in.ogr can be added, to do just import (which
includes cleaning), and then export the cleaned layer. Would that make
sense to you?
yes! That makes sense for me. Actually, this feature has been already
asked for by someone some months ago, but seems to have
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Il 30/04/2013 20:46, Bernd Vogelgesang ha scritto:
Hi,
don't know if i understand the matter correctly, but what i extracted from
Stefans
initial question is, that there is no v.in.ogr accessible in Sextante, and
therefore
no advanced options
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Il 30/04/2013 20:58, Victor Olaya ha scritto:
Maybe a wrapper of v.in.ogr can be added, to do just import (which
includes cleaning), and then export the cleaned layer. Would that make
sense to you?
Not for me.
All the best.
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Paolo Cavallini
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Il 30/04/2013 22:41, SBL ha scritto:
The one is, that if you for example run v.clean through Sextante on a
polygon layer containing polygons with overlapping areas, the overlapp
errors are (silently) cleaned during import and therefore not written
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Il 01/05/2013 10:22, Bernd Vogelgesang ha scritto:
I don't know if it's possible to add the other advanced option for v.in.ogr
as well,
e.g. importing lines and convert them to boundaries (polygons) etc., as we
have it in
the GRASS toolbox.
Just retried it, and it seems to work now.
A month ago, it definitely didn't. I tested it there myself, to no avail:
http://gis.stackexchange.com/questions/54388/grass-v-clean-snap-with-polygons
Ok, Sextante seems to have changed a lot recently and i have to admit that
i lost the overview.
Hi
Hope I am not too bothersome with that topic...
Unfortunately, Sextante 1.09 was hidden in my OSGeo4W installation behind
the old 1.07, so it took me a while to find the advanced parameters.
Actually, both Sextante versions were installed in parallel, which I was not
aware of (neither the
Considering the comments in this thread, I think the best solution
would be to add more advanced parameters to allow more fine tuning for
users like you. That would include the option to perform several
cleaning operations at once, and also the option to select output
type. Since it is an advanced
Dear all
I was wondering: When I run v.clean on a QGIS vector layer through Sextante,
a temporary GRASS location is created, the GRASS topology for the QIS-layer
is build, v.clean applied and the result exported to shape, am I right?
That is in general really very useful. Especially because
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Il 30/04/2013 13:10, SBL ha scritto:
I was wondering: When I run v.clean on a QGIS vector layer through Sextante,
a temporary GRASS location is created, the GRASS topology for the QIS-layer
is build, v.clean applied and the result exported to
Since GRASS applies som cleaning, at least when importing Polygons, is there
a possibility to adjust the cleaning procedure from v.in.ogr there?
Not advisable: the user must know if it is going to snap or remove small
areas.
Click on show advanced paramters, and you will have two new
Hi Paolo
Thanks for the swift reply!
Sounds sounds really good.
What I did not understand completely was: Do you mean that the default
settings of v.in.ogr are being used (snapping disabled and min_area set to
0.0001) or is the topology cleaning completely disabled in the v.in.ogr-part
of
Great! I shall check that...
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Hi,
don't know if i understand the matter correctly, but what i extracted from
Stefans initial question is, that there is no v.in.ogr accessible in
Sextante, and therefore no advanced options for snapping and minimum areas
to import from e.g. shape files.
Especially for badly digitized
Bernd,
there is no v.in.ogr, because it is used *always* when you use a
vector layer with SEXTANTE and GRASS, to import the layer into GRASS,
and then produce a result.
Maybe a wrapper of v.in.ogr can be added, to do just import (which
includes cleaning), and then export the cleaned layer. Would
Thanks Bernd and Victor
That is exactly what I ment.
So, +1 from me for an import/export-wrapper!
Two more aspects in that regards:
The one is, that if you for example run v.clean through Sextante on a
polygon layer containing polygons with overlapping areas, the overlapp
errors are (silently)
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