Re: [GRASS-user] v.clean Failed to build area

2018-05-01 Thread Peter Tittmann
at 11:51 AM, Markus Metz <markus.metz.gisw...@gmail.com > wrote: > [ please keep this on the GRASS mailing list ] > > On Fri, Apr 27, 2018 at 6:43 PM, Peter Tittmann <ptittm...@gmail.com> > wrote: > > > > Hi Markus, > > > > grass72 -v > > GRASS GIS

[GRASS-user] v.clean Failed to build area

2018-04-26 Thread Peter Tittmann
Hi, I am attempting to use the `rmarea` tool in v.clean with a threshold of ~ 1000 sq meters. projection is the following: g.proj -p -PROJ_INFO- name : NAD83 / UTM zone 5N datum : nad83 ellps : grs80 proj : utm zone :

Re: [GRASS-user] Strange behavior with v.patch

2017-12-11 Thread Peter Tittmann
Thanks, Markus. That solves the problem. On Sat, Dec 9, 2017, 8:33 AM Markus Metz <markus.metz.gisw...@gmail.com> wrote: > > > On Fri, Dec 8, 2017 at 11:46 PM, Peter Tittmann <ptittm...@gmail.com> > wrote: > > > > Hi, > > > > In atte

[GRASS-user] Strange behavior with v.patch

2017-12-08 Thread Peter Tittmann
Hi, In attempting to patch two polygon layers I am confused as to the the results i am getting. My understanding of v.patch is that it would be similar to a `union` operator in SQL (not a spatial union) wherein rows of one or many tables are concatenated to a new table. However, the results i’m

Re: [GRASS-user] Copy and concatenate a vector attribute between layers

2017-12-07 Thread Peter Tittmann
gt; >through > > >driver with key > > >> GRASS 7.2.2 (nc_spm_08):~ > v.db.connect test layer=2 table=test > > >> ERROR: Use -o to overwrite existing link for layer <2> > > >> > > >> So I don't really understand why you get th

Re: [GRASS-user] Copy and concatenate a vector attribute between layers

2017-12-06 Thread Peter Tittmann
> Am 6. Dezember 2017 18:42:22 MEZ schrieb Peter Tittmann <ptittm...@gmail.com > <mailto:ptittm...@gmail.com>>: >> Thank you, Moritz. >> >> I'm pretty familiar with SQL but can’t figure out how layer 2 is stored >> in the database. When I `p

Re: [GRASS-user] Copy and concatenate a vector attribute between layers

2017-12-06 Thread Peter Tittmann
;mlenn...@club.worldonline.be> > wrote: > > On 02/12/17 02:03, Peter Tittmann wrote: >> Hi, >> I have a vector (`POINT`) which has two layers containing relevant >> attributes (’strata’ and ’stand’). I would like to concatenate the two >> values into a

[GRASS-user] Copy and concatenate a vector attribute between layers

2017-12-01 Thread Peter Tittmann
Hi, I have a vector (`POINT`) which has two layers containing relevant attributes (’strata’ and ’stand’). I would like to concatenate the two values into a new attribute for Layer 1 (’_’). I’ve been struggling to sort this out for too long and am tapping out. Its probably blatantly obvious but

[GRASS-user] printing category values with r.stats -1

2016-07-18 Thread Peter Tittmann
All, I’d like to output category values with r.stats as I need to run paired tests between and among categories. Toward this end I am using v.rast with `-1` to print all raster values to a file and I’d like to get category value sprinted to that file as well but I’ve not been able to. The

Re: [GRASS-user] PostgreSQL not in v.out.ogr format options

2016-05-11 Thread Peter Tittmann
e keep discussions on the list] > > On 29/04/16 19:35, Peter Tittmann wrote: >> Thx for your reply! >> >> -> "PostgreSQL" (read/write) >> > > And > > v.in.ogr -f | grep PostgreSQL > > ? > > If that doesn't show success, the

[GRASS-user] PostgreSQL not in v.out.ogr format options

2016-04-29 Thread Peter Tittmann
All, Using GRASS7. I would like to write to postgis from a GRASS vector file, and would like to be able to append to a table as opposed to create new. I see that the `-a` flag is not implemented yet in v.out.postgis so I turned to v.out.ogr. Despite having a fully functional GDAL with the OGR

[GRASS-user] Re: (no subject)

2011-02-18 Thread Peter Tittmann
says you may want to do a v.surf.rst layer=0 in=${BASEMAP}_pt elev=${BASEMAP}.rst to fill holes in the data hope this helps! -- Peter Tittmann c 707 849 4135 On Friday, February 18, 2011 at 4:01 PM, Jorn Anke wrote: Hi, I have a pointcloud, (EUREF-89, sone 32 Norway, northern hemisphere

[GRASS-user] python pipe Popen to grass.?_command

2011-02-17 Thread Peter Tittmann
Greetings, I'm attempting to pipe the results from: pts=sub.Popen('las2txt -i %s --parse xyz --keep-classes 2 --delimiter | --stdout'%path, shell=True, stdout=sub.PIPE) to the appropriate grass.?_command('r.in.xyz', etc...) i've tried the following: mkInRast=grass.feed_command(r.in.xyz,

[GRASS-user] python scripts load error

2011-02-16 Thread Peter Tittmann
greeting experts. i'm attempting to import grass.script in python unsuccessfully (ImportError: No module named grass.script) ive set the environment variables according to this http://grass.osgeo.org/wiki/GRASS_and_Python#General_guides on ubuntu x64 Natty. can anyone recommend a solution? i