Re: [GRASS-user] remove holes from polygon

Hi Moritz Is there a way to automatically (not by manually editing the dataset) remove all holes in all areas of a vector dataset (I guess that are polygons without a category within polygons with a category). What do you mean by remove ? Fill them as separate polygons ? Make them part of

[GRASS-user] remove holes from polygon

Hi GRASS list, I am kind of lost and hope someone can point me in the right direction. Is there a way to automatically (not by manually editing the dataset) remove all holes in all areas of a vector dataset (I guess that are polygons without a category within polygons with a category). Thanks

Re: [GRASS-user] NASADEM: new global 1 arcsec DEM

Hi Markus, >> did you use the NASADEM further than importing it in GRASS? > > Well, I used it like a DEM.. That's good to know. I find it hard to find any applications using this data set. Seems to be still early and r.in.nasadem a frontrunner ;-) >> I need a DEM for Germany + 10km Buffer.

Re: [GRASS-user] NASADEM: new global 1 arcsec DEM

Moin Markus & Markus, did you use the NASADEM further than importing it in GRASS? I need a DEM for Germany + 10km Buffer. So, I thought NASADEM would be a natural fit and am now trying to get a handle on this dataset. The import with r.in.nasadem in a WGS84 Location just worked. Thanks a lot

Re: [GRASS-user] Fwd: Re: remove small islands from vector areas

Am 21.06.19 um 21:27 schrieb Ken Mankoff: On 2019-06-21 at 21:10 +02, Robert Nuske wrote... If there is no way to only treat the islands/holes (which i don't know about), it will change the outer boundary as well. Fjord like structures will vanish. Neighboring areas might even merge if close

Re: [GRASS-user] Fwd: Re: remove small islands from vector areas

> I want to remove islands smaller than a certain threshold from my > vector map or if that is not possible all islands. > > I found some trick on an old manual page of v.extract. But this > does not work anymore. Is there a new trick? Did you have a look at v.clean:

[GRASS-user] Fwd: Re: remove small islands from vector areas

Weitergeleitete Nachricht Betreff: Re: [GRASS-user] remove small islands from vector areas Datum: Fri, 21 Jun 2019 13:47:52 +0200 Von: Robert Nuske An: Stefan Blumentrath Hi Stefan, as far as I understood does rmarea that remove small areas but not islands (holes) within

[GRASS-user] remove small islands from vector areas

Dear Listers, sorry, it's me again. I want to remove islands smaller than a certain threshold from my vector map or if that is not possible all islands. I found some trick on an old manual page of v.extract. But this does not work anymore. Is there a new trick? thnaks robert

Re: [GRASS-user] Densify vertices in polygon

Robert Nuske mailto:rsn.mailingli...@gmail.com>> wrote: > > Dear Listers, > > I would like to smooth polygons coming from a raster via r.to.vect using > v.generalize methods=snakes. > > If I understood the documentation correctly, snakes is the only method > that

[GRASS-user] Densify vertices in polygon

Dear Listers, I would like to smooth polygons coming from a raster via r.to.vect using v.generalize methods=snakes. If I understood the documentation correctly, snakes is the only method that tries to go the middle ground: neither entirely circumscribing (larger than original polygon) nor

Re: [GRASS-user] How to check if a raster has a NULL value

Moin Markus, thanks a ton! cheers robert Am 18.06.19 um 15:31 schrieb Markus Neteler: Hi Robert, On Tue, Jun 18, 2019 at 1:54 PM Robert Nuske wrote: Hi Listers, r.fillnulls exits with an error if the input map has no holes. r.fillnulls one step in a bash script. The processing

[GRASS-user] How to check if a raster has a NULL value

Hi Listers, r.fillnulls exits with an error if the input map has no holes. r.fillnulls one step in a bash script. The processing is stopped if r.fillnulls writes no output because of an error. Thus i would like to check if any holes need to be filled. If this is the case run r.fillnulls and

Re: [GRASS-user] v.patch eats my large polygons

Hi Markus, > 38 vector maps (polygon) cover separate parts of my study area. A few > share a boundary with their neighbor, most do not. To further work with > all polygons from all sub plots, I want to merge all sub plots into one > vector map. I do NOT need the polygons to get dissolved

[GRASS-user] v.out.ogr -n segfaults

Dear List(en)ers, trying to work around my previously reported issue (v.patch eating my polygons) I run into a segfault: > v.out.ogr -n in=gaps_1 out=gaps_coll Segmentation fault (core dumped) Can anyone reproduce this? thanks robert ___

[GRASS-user] v.patch eats my large polygons

Dear GRASS-Users, after an abstinence period I started again to use GRASS 7.4 on Ubuntu 18.04 and am now facing v.patch eating my large polygons. 38 vector maps (polygon) cover separate parts of my study area. A few share a boundary with their neighbor, most do not. To further work with

Re: [GRASS-user] [GRASS-dev] problem in ubuntu package (ppa:grass-devel) was: can not install addons with g.extension

Am Freitag, 20. Februar 2015, 08:32:17 schrieb Anna Petrášová: On Tue, Feb 17, 2015 at 9:41 AM, Anna Petrášová kratocha...@gmail.com wrote: On Tue, Feb 17, 2015 at 6:03 AM, Robert Nuske rnu...@gwdg.de wrote: Hi g.extension from grass70 (ppa:grass-devel) still fails

Re: [GRASS-user] can not install addons with g.extension

, 2015-02-18 11:09 GMT+01:00 Robert Nuske rnu...@gwdg.de: $ ls -l /usr/local/src/grass70/dist.x86_64-unknown-linux-gnu/tools total 60 -rwxrwxr-x 1 rnuske rnuske 6240 Feb 17 11:27 g.echo -rwxr-xr-x 1 rnuske rnuske 1501 Feb 17 11:27 g.html2man.py -rw-r--r-- 1 rnuske rnuske 5940 Feb 17 11

Re: [GRASS-user] [GRASS-dev] problem in ubuntu package (ppa:grass-devel) was: can not install addons with g.extension

Hi there Good News! Thanks to Glynn's hint and Martin's fixes the daily grass70 package from ppa:grass-devel is now able to manage addons with g.extension. Thanks a lot for your help! cheers, robert ___ grass-user mailing list

Re: [GRASS-user] can not install addons with g.extension

Thanks Glynn! I have added py extension in `rules` file [1] and requested for the new build. Should be available in 10min. Thanks for the fix. It already percolated into the ubuntu package grass70 Version: 7.0.0+1svn64634~ubuntu14.04.1 g.extension fails now because it can

[GRASS-user] problem in ubuntu package (ppa:grass-devel) was: can not install addons with g.extension

Hi g.extension from grass70 (ppa:grass-devel) still fails. [...] Traceback (most recent call last): File /usr/lib/grass70/tools/g.html2man.py, line 5, in module from html import HTMLParser, HTMLParseError ImportError: No module named html [...] GRASS Version: 7.0.0+1svn64647~ubuntu14.04.1

Re: [GRASS-user] can not install addons with g.extension

Hi Martin, I have added py extension in `rules` file [1] and requested for the new build. Should be available in 10min. Thanks for the fix. It already percolated into the ubuntu package grass70 Version: 7.0.0+1svn64634~ubuntu14.04.1 g.extension fails now because it can not find the html

Re: [GRASS-user] can not install addons with g.extension

Hi Martin, mkdir -p /usr/lib/grass70/docs/man mkdir: cannot create directory '/usr/lib/grass70/docs/man': Permission denied make: *** [/usr/lib/grass70/docs/man] Error 1 ERROR: Compilation failed, sorry. Please check above error messages. I fixed this bug in r64534 (trunk only), after

Re: [GRASS-user] can not install addons with g.extension

Hi problem with missing `g.html2man.py` still exists in daily ubuntu pacakges of GRASS 7.0 The rules file (lines 180-183) contains rules for tools/mkhtml.py tools/g.html2man I have no idea why they are treated differently. One with '.py' and the other without. cheers Robert

Re: [GRASS-user] can not install addons with g.extension

Hi Martin, thanks for looking into this! 2015-02-09 16:10 GMT+01:00 Robert Nuske rnu...@gwdg.de: mkdir -p /usr/lib/grass70/docs/man mkdir: cannot create directory '/usr/lib/grass70/docs/man': Permission denied make: *** [/usr/lib/grass70/docs/man] Error 1 ERROR: Compilation failed

Re: [GRASS-user] dilation erosion (mathematical morphology)

the r.growth.shrink addon. See also ticket #2368 [0] which includes a patch for r.grow.distance to shrink (distance from nearest NULL cell to be precise). Markus M https://trac.osgeo.org/grass/ticket/2368 On Thu, Feb 5, 2015 at 1:59 PM, Robert Nuske rnu...@gwdg.de wrote: Hi

Re: [GRASS-user] generalize polygons including holes

Hi Markus, v.generalize does not distinguish between outer and inner rings, it simply goes through all boundaries and generalizes each one. And this has always been the case or this is specific to GRASS7 ? This has always been the case. Then why doesn't there seem to be

Re: [GRASS-user] can not install addons with g.extension

Hi Pietro On Tue, Feb 10, 2015 at 9:05 AM, Robert Nuske rnu...@gwdg.de wrote: Any clue about the missing python module 'html' reported by g.html2man.py? Traceback (most recent call last): File /usr/lib/grass70/tools/g.html2man.py, line 4, in module from html import

[GRASS-user] can not install addons with g.extension

Dear GRASS-List, using GRASS 7.0 from the ppa:grass-devel on ubuntu 14.01 I am not able to compile addons with g.extension I use today’s daily GRASS built (7.0.0+1svn64508~ubuntu14.04.1) and the packages grass70, grass70-core, grass70-dev, grass70-doc, grass70-gui As standard user I am not

Re: [GRASS-user] generalize polygons including holes

Hi Moritz GRASS-List is there a way to generalize polygons including their holes? I am not too worried about topology, there are only polygons of one class in the dataset. I tried the following v.generalize in=m3 out=m5 type=area method=douglas threshold=5000 which

[GRASS-user] dilation erosion (mathematical morphology)

Hi there, looking at some noisy raster map, I would like to clean up the patches (map consists only of one class and NULL) using basic mathematical morphology (dilation erosion) in GRASS 7.0. The dilation can easily be achieved with r.grow. But the erosion seems not to be as straight

Re: [GRASS-user] trouble with addons - was: dilation erosion (mathematical morphology)

, 14:53:05 schrieb Paulo van Breugel: Check out the r.growth.shrink addon. On Thu, Feb 5, 2015 at 1:59 PM, Robert Nuske rnu...@gwdg.de wrote: Hi there, looking at some noisy raster map, I would like to clean up the patches (map consists only of one class and NULL) using basic

Re: [GRASS-user] trouble with addons - was: dilation erosion (mathematical morphology)

) in the home folder. On Thu, Feb 5, 2015 at 3:52 PM, Robert Nuske rnu...@gwdg.de wrote: Hi Paulo, thanks for the hint! Now I have some trouble to install the addon: As a standard user I am not allowed to create a directory under /usr/lib. A second try as root failed because

Re: [GRASS-user] generalize polygons including holes

is there a way to generalize polygons including their holes? I am not too worried about topology, there are only polygons of one class in the dataset. I tried the following v.generalize in=m3 out=m5 type=area method=douglas threshold=5000 which simplified the outer

[GRASS-user] generalize polygons including holes

Hi GRASS-Users is there a way to generalize polygons including their holes? I am not too worried about topology, there are only polygons of one class in the dataset. I tried the following v.generalize in=m3 out=m5 type=area method=douglas threshold=5000 which simplified the outer boundaries

Re: [GRASS-user] Creating spatially clumped random cells

Hi Johannes another path might be to use the excellent tools of the R package spatstat to simulate various cluster processes. Those generated point patterns could then be translated to rasters. Functions for random point processes exhibiting clustering in spatstat are e.g. rThomas,

Re: [GRASS-user] Piping a table to PostgreSQL

Hello I am trying to run r.what to populate a table in PostgreSQL using; echo 'select x, y from xy limit 10' | db.select -c fs=' ' | r.what input=layer fs=',' | ... This bit works OK (I do get an extra blank column - see below) 140.877,-33.9604,,4071 140.88,-33.9604,,3670

[GRASS-user] Re: GRASS talks @ Barcelona FOSS4G conference?

Markus, On Thu, Apr 15, 2010 at 4:59 PM, Robert Nuske rnu...@gwdg.de wrote: Hi Markus, perhaps also the new GRASS poster (Robert, did you submit it?). Not yet, since I am not sure if I cna make it to the FOSS4G (there is another conference in the same week). But if you think

[GRASS-user] Re: GRASS talks @ Barcelona FOSS4G conference?

Hi Markus, perhaps also the new GRASS poster (Robert, did you submit it?). Not yet, since I am not sure if I cna make it to the FOSS4G (there is another conference in the same week). But if you think it would be worth it, I will submit an abstract and somebody can take the poster to the

Re: [GRASS-user] Landscape connectivity‏

Hi Markus, Am Donnerstag 03 Dezember 2009 01:02:00 schrieb Pablo Carreira: Hi Markus M., after a fast look at Urban Keitt here is my sugestions: a)Create a single central vector point for each patch. b)Connect that vector to an MySQL database. c)create the columns ID, X, Y, NHABDIST,