Re: [GRASS-user] Possible issue with ps.map

Dr. Southern, Can you provide a link for the code you downloaded? I didn't find it at GISCAN. Thanks, Dave -- David W. Roberts office 406-994-5670 Professor

Re: [GRASS-user] disappearing d.mon

Thanks Markus! I'll push this along. On 5/15/21 3:01 PM, Markus Neteler wrote: Dave, Ben, Thanks to Anna and Tomas I now remember that the same happened in Fedora as well (last year). It seems that Arch/Manjaro are still missing this upstream fix for wxPseudoDC.FindObjects crash:

[GRASS-user] disappearing d.mon

Colleagues, Finally, after probably a year I now have no errors about incompatible versions of wxwidgets, wxpython, and GRASS. However, when I execute d.mon wx0 it pops up the box, but which then spontaneously disappears after about 10-15 seconds. It leaves behind the MONITORS/wx0

Re: [GRASS-user] configure file for Fedora 33 and grass-7.8.5

Michael, you define perseverance. Markus, you are extraordinarily gracious with your time and expertise. This is a happy outcome that demonstrates the depth of commitment of the GRASS community. Bravo, Dave R. On 12/23/20 4:39 PM, mdwxman via grass-user wrote: GRASS GIS 7.8.5 exported

[GRASS-user] six.py

I compiled 7.8.3 from source successfully. However, I get an error when tying to start a monitor GRASS GIS 7.8.3 > d.mon wx3 Mapset in Location GRASS GIS 7.8.3 > Traceback (most recent call last):

[GRASS-user] No module named wx

path problem but six.py is clearly in /usr/local/grass78/gui/wxpython/mapdisp Thanks in advance for any help, Dave Roberts ___ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] ImportError: No module named six

I compiled 7.8.3 from source successfully. However, I get an error when tying to start a monitor GRASS GIS 7.8.3 > d.mon wx3 Mapset in Location GRASS GIS 7.8.3 > Traceback (most recent call last):

Re: [GRASS-user] areas with no centroid

Thanks Helmut v.extract demo cats=1-100 out=new worked like a charm! Sorry I missed your point the first time. Dave On 11/27/16 23:46, Helmut Kudrnovsky wrote: Thanks for the suggestion, but the area with no centroid doesn't have a cat. that's exactly what I've meant. then do v.extract

Re: [GRASS-user] areas with no centroid

Kudrnovsky wrote: Dave Roberts wrote After editing a map with wxgui I ended up with 39 areas and 38 centroids. How do I find and delete the area with no centroid? I have tried many combinations of v.info, v.category, v.to.db, and visualizing with d.vect. If I use v.clean tool=rmarea with slowly

[GRASS-user] areas with no centroid

After editing a map with wxgui I ended up with 39 areas and 38 centroids. How do I find and delete the area with no centroid? I have tried many combinations of v.info, v.category, v.to.db, and visualizing with d.vect. If I use v.clean tool=rmarea with slowly increasing thresholds it gets

Re: [GRASS-user] min and max raster within polygons

Thanks Anna. Wow, only two lines of code! v.to.rast inp=new_mountains out=new_mountains attr=cat use=attr r.univar map=srtm zones=new_mountains Thanks, Dave On 11/20/16 13:20, Anna Petrášová wrote: On Sun, Nov 20, 2016 at 3:12 PM, Dave Roberts <drobe...@montana.edu> wrote: Friends,

[GRASS-user] min and max raster within polygons

Friends, I have succeeded (finally) in heads-up digitizing the mountain ranges of the Rocky Mountains. Now I want to know the minimum and maximum elevation for each range. I have a suitable DEM, but I cannot figure out a combination or r.mapcalc or other that will give me this.

Re: [GRASS-user] postgres connection failure SOLVED

perhaps I'm alright. Dave On 11/19/16 11:45, Dave Roberts wrote: Friends, I recently made some changes to postgresql (deleted from package manager and installed from source 9.5.1). It was a hassle because they install in different locations and put the bin files in different places, etc

[GRASS-user] postgres connection failure

Friends, I recently made some changes to postgresql (deleted from package manager and installed from source 9.5.1). It was a hassle because they install in different locations and put the bin files in different places, etc. It's all working now, except for GRASS, which seems to be

Re: [GRASS-user] new map in wxgui digitizer

Hi Anna, yes I can create tickets now. I'll do that this weekend. Thanks, Dave On 11/18/16 10:03, Anna Petrášová wrote: On Fri, Nov 18, 2016 at 10:41 AM, Dave Roberts <drobe...@montana.edu> wrote: Friends, I am trying to make use of the wxgui digitizer and finding it somewhat chall

[GRASS-user] new map in wxgui digitizer

Friends, I am trying to make use of the wxgui digitizer and finding it somewhat challenging. One issue is that I like to run from the console (i.e. grass73 -text) and that produces a subtly different widget than if I run from the gui (i.e. grass73 -gui). Using the console version, when I

Re: [GRASS-user] Vector file import formats

Rich, I'm working on a page for my tutorial on "GRASS for Ecologists" called "Living with ESRI". Let me know how your project works out so I can benefit from your experience. Dave On 10/27/16 11:13, Rich Shepard wrote: Dave, Yes, I have/had this; don't know if it's still on the

Re: [GRASS-user] Vector file import formats

Rich, I would look at the excellent MDB-tools package (http://mdbtools.sourceforge.net). mdb-export will pull a specific layer out of the mdb file. Unless it's a point coverage it's not going to contain spatial data though, and even for point coverages it's rare to the the point

Re: [GRASS-user] meaning of "geometry"

Thanks Rich. Comments interspersed. On 10/25/16 13:33, Rich Shepard wrote: On Tue, 25 Oct 2016, Dave Roberts wrote: So now when I see "geometry" in a manual page or GRASS-user posting I interpret that to mean "vertices, nodes, centroids, and associated cat

Re: [GRASS-user] meaning of "geometry"

On 10/24/16 14:39, Markus Metz wrote: On Mon, Oct 24, 2016 at 4:07 PM, Anna Petrášová <kratocha...@gmail.com> wrote: On Mon, Oct 24, 2016 at 9:04 AM, Dave Roberts <drobe...@montana.edu> wrote: Frequently in GRASS help files or emails in this list the term "geometry" is used.

[GRASS-user] meaning of "geometry"

Frequently in GRASS help files or emails in this list the term "geometry" is used. Is geometry synonymous with a record in the coor file, or does it have a broader meaning? Thanks, Dave -- ___ grass-user mailing list grass-user@lists.osgeo.org

Re: [GRASS-user] d.what.vect highlighting

Anna, Sorry, my two emails arrived in the wrong order due to some odd behavior of the email system. Comments interspersed. On 10/19/16 08:47, Anna Petrášová wrote: On Wed, Oct 19, 2016 at 10:07 AM, Dave Roberts <drobe...@montana.edu> wrote: Recent versions of GRASS (at least as

[GRASS-user] d.what.vect highlighting

in a way I find confusing. I would have expected that it would only influence the polygon I click on, but often other polygons change color as well, depending on their cat values in other tables. Is there a way to turn this behavior off? Dave Roberts

[GRASS-user] d.what.vect highlighting redux

Actually, the highlight color depends on the map color scheme and isn't always yellow. Dave Roberts -- ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] boundary vs area in wx0

of v.category will straighten all of this out. In the meantime, I discovered that I could import layers from a GDB individually with v.in.ogr, so all is well. Dave On 10/12/16 14:33, Helmut Kudrnovsky wrote: Dave Roberts wrote I'm having difficulty getting the wx devices to show vector

Re: [GRASS-user] ogrinfo vs v.in.ogr of GDB files

On 10/12/16 15:04, Dave Roberts wrote: Indeed. I should have held out a little longer on canceling. Dave -- David W. Roberts office 406-994-4548 Professor and Head

[GRASS-user] ogrinfo vs v.in.ogr of GDB files

Indeed. I should have held out a little longer on canceling. Dave -- ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] query highlight too persistent

Sorry, closing the query output widget works as well, so maybe that's as intended. Dave On 10/12/16 13:29, Dave Roberts wrote: In GRASS 7.3.svn (and maybe earlier) querying a polygon in an wx device with your mouse highlights the polygon in yellow. However, the highlight is too persistent

[GRASS-user] query highlight too persistent

In GRASS 7.3.svn (and maybe earlier) querying a polygon in an wx device with your mouse highlights the polygon in yellow. However, the highlight is too persistent, i.e. a d.erase does not make it go away, although the render map icon will clear it. --

[GRASS-user] boundary vs area in wx0

I'm having difficulty getting the wx devices to show vector features. For example, I have a map called newveg. v.info clearly shows that newveg has areas, e.g. Number of points: 0 Number of centroids: 38183 Number of lines: 0 Number of boundaries: 97451 Number of areas:

Re: [GRASS-user] map display query and layers

into GRASS source code and I wouldn't want to tackle this yet. Thanks, Dave On 10/04/16 06:32, Helmut Kudrnovsky wrote: Dave Roberts wrote Thanks Helmut, Thanks Anna I compiled the trunk version, and the map query tool now clearly behaves differently, but not how I expected 1) it shows all layers

Re: [GRASS-user] map display query and layers

Thanks Helmut, Thanks Anna I compiled the trunk version, and the map query tool now clearly behaves differently, but not how I expected 1) it shows all layers in the map query results, regardless of what layer (if any) was selected in d.vect I.e. d.vect map d.vect map layer=1 v.vect map

Re: [GRASS-user] map display query and layers

dniu 03.10.2016 o 23:18, Markus Neteler pisze: On Mon, Oct 3, 2016 at 7:12 PM, Dave Roberts <drobe...@montana.edu> wrote: Hi Markus, Given your kind offer I elected to try and compile GRASS again. This time I was successful (after a few false starts). The primary problem was python con

Re: [GRASS-user] map display query and layers

on this rthread should probably have been switched to Arch linux GRASS build, but I left it alone to allow tracking On 10/03/16 15:18, Markus Neteler wrote: On Mon, Oct 3, 2016 at 7:12 PM, Dave Roberts <drobe...@montana.edu> wrote: Hi Markus, Given your kind offer I elected to try and c

Re: [GRASS-user] map display query and layers

Thanks Moritz. This looks like the solution I was looking for. However, I have not been successful at building GRASS from source for quite a long time (just tried again and generated fatal errors in over 50 directories), so it will be a little while before I can test the patch. At a first

Re: [GRASS-user] map display query and layers

Thanks Helmut, On 10/02/16 02:53, Helmut Kudrnovsky wrote: {material deleted for space ...} it seems that d.what.vect [1] reports always all data of all layers. the same with v.what although the queried layer is specified. so maybe a bug/enhancement ticket is needed. [1]

Re: [GRASS-user] map display query and layers

handles cats (i.e. boundaries or centroids). Just to check, you can have a look at this wiki entry : https://grasswiki.osgeo.org/wiki/Vector_Database_Management#GRASS_GIS_vector_management_model Best, Vincent. Le vendredi 30 septembre 2016 à 15:47 -0600, Dave Roberts a écrit : d.vect has an option

[GRASS-user] map display query and layers

d.vect has an option for layer= but I don't get any consistent effect from the query tool in the map display. For example GRASS GIS 7.0.4 > v.db.connect -p fuel Vector map is connected by: layer <1/LAB> table in database through driver with key layer <2/ARC> table in database through

Re: [GRASS-user] GIS software popularity ranking: http://gisgeography.com/mapping-out-gis-software-landscape

Sadly, it's not just Microsoft users that take the GUI view. A couple of years ago GRASS was reviewed in Linux Journal and they didn't even mention it was scriptable. I wrote a letter to the editor to point that out and they responded that that was minimally interesting. Dave Roberts On 09

[GRASS-user] v.category chlayer issues

I have a vector feature with four areas and two layers. Each of the two layers is tied to a different sqlite table. I'm trying to make what is currently layer 2 the default, and to delete the no longer needed layer 1. I tried v.category inp=new_ascii op=chlayer type=centroid layer=2,1

Re: [GRASS-user] create location from CLI

Paul, On 09/06/16 16:28, Paul Kelly wrote: The proj4 parameter in g.proj takes a PROJ string description, not a file containing one. So, g.proj -c proj4="+proj=longlat +datum=WGS84" should work, as far as I can think. Indeed it does, and that seems to be the end of the line. So it's

Re: [GRASS-user] create location from CLI

. So, I'm still struggling for the syntax of aproj4 file I guess. Thanks all, Dave On 09/06/16 14:37, Markus Neteler wrote: Hi, On Sep 6, 2016 9:25 PM, "Dave Roberts" <drobe...@montana.edu <mailto:drobe...@montana.edu>> wrote: Hi Ken, Hi Sajid, Thanks for the

Re: [GRASS-user] create location from CLI

Sajid, I have no problem getting EPSG specs to work, but that's a lttle too indirect for the audience I'm trying to reach. Thanks, Dave On 09/06/16 08:12, Ken Mankoff wrote: On 2016-09-06 at 13:21, Dave Roberts <drobe...@montana.edu> wrote: I'm trying to understand the simple

[GRASS-user] create location from CLI

Dear All, I'm trying to understand the simplest way in GRASS7 to create a location from the command line without using a georeferenced file. So far, it appears to be % grass70 -c newLocation at the OS prompt, followed by GRASS GIS 7.0.4 > g.proc -c wkt=some WKT text file inside of the

[GRASS-user] d.out.file format=png file malformed

Friends, I'm using GRASS 70-svn on Arch linux to generate figures for a report. The general process is 1) GRASS - d.out.file format=png 2) xfig - import the PNG file, annotate, and export as PDF 3) TeX - import the file in a dvipdfm \special However, I'm now having problems with

Re: [GRASS-user] d.out.file format=png file malformed

, On Fri, Jul 18, 2014 at 1:56 PM, Dave Roberts dvr...@ecology.msu.montana.edu mailto:dvr...@ecology.msu.montana.edu wrote: Friends, I'm using GRASS 70-svn on Arch linux to generate figures for a report. The general process is 1) GRASS - d.out.file format=png 2) xfig

Re: [GRASS-user] wxgui fails using scripts

boundary type=boundary col=white Dave On 06/17/2014 11:26 AM, Markus Neteler wrote: Dave, On Mon, Jun 16, 2014 at 9:59 PM, Dave Roberts ... Then simply sh litho.sh would produce the reuslts I wanted, and if I decided on a different color scheme it was a trival matter to edit the file

[GRASS-user] wxgui fails using scripts

Dear all, I frequently want a thematic map for a variable that is not numeric, and thus not permisaable in d.vect.thematic. In the past a simple solution was to write a shell script with d.vect commands. For example, I could create a file called litho.sh with the following lines d.vect

[GRASS-user] d.what.vect in GRASS 7

Friends, Would it be possible to get d.what.vect back in GRASS 7? The current query tool works OK if I don't have too many maps loaded, but it oftern returns an extensive list of stuff I'm not interetsed in and buries what I'm after. E.g., if I execute multiple d.vect commands with

Re: [GRASS-user] random points through multiple vector maps

Friends, Sorry, this DID work for points inside the polygon of interest. I guess I was too tired. Dave On 05/30/2014 05:42 PM, Dave Roberts wrote: Friends, I am trying to drop random points through two vector maps to establish the correspondence between them. I couldn't figure

[GRASS-user] random points through multiple vector maps

Friends, I am trying to drop random points through two vector maps to establish the correspondence between them. I couldn't figure out how to do that with v.random so I created a database table with 10,000 random points within the bounds of the region, and then used v.in.db to bring the

Re: [GRASS-user] .lyr legends from ArcInfo grid

Johannes, pvanb has a post on is blog about this. Look at http://pvanb.wordpress.com/?s=lyr It's a post from Feb 5 Dave On 02/25/2014 06:07 AM, Johannes Radinger wrote: Hi all, just I short question. Although I don't think that is possible, but is there a way to import/use a legend file

Re: [GRASS-user] broken d.mon

Ultimately had to recompile GRASS-6.4.3 to get d.mon to work again. The make generated numerous errors, but much to my surprise make install worked and solved my problem (at least for now). Dave On 02/21/2014 02:08 PM, Vaclav Petras wrote: On Fri, Feb 21, 2014 at 4:06 PM, Dave Roberts

Re: [GRASS-user] libgrass_gmath

: Thanks for the good words, Dave - no need for that! Quick notes inline, it is already tomorrow here: On Wed, Feb 19, 2014 at 11:52 PM, Dave Roberts dvr...@ecology.msu.montana.edu wrote: Hi Markus, You're a saint. I'm at work right now, so I'll have to run the suggested commands below when I get

Re: [GRASS-user] libgrass_gmath

at 11:58 PM, Dave Roberts dvr...@ecology.msu.montana.edu wrote: Markus, Despite (or perhaps because of) downloading and installing new wxPython, gdal, fftw, and others I have forgotten, compiling grass7_trunk generated numerous errors. libgrass_gmath.7.0.svn.so compiled successfully

[GRASS-user] broken d.mon

Friends, I have broken my copy of GRASS 6.4.3. Impressed with the GRASS70 display, I foolishly tried d.mon wx0 in GRASS64. It not only did not display, now no monitors exist, i.e. GRASS 6.4.3 d.mon -l no known monitors It has affected all my locations, not just the one where I

Re: [GRASS-user] broken d.mon

Hi Martin, Thanks. I do understand that. But now I have no X monitors (nor png or anything else for that matter). Dave On 02/21/2014 09:18 AM, Martin Landa wrote: Hi, 2014-02-21 17:10 GMT+01:00 Dave Robertsdvr...@ecology.msu.montana.edu: d.mon wx0 in GRASS64. It not only did not

Re: [GRASS-user] broken d.mon

you don't mind. On Fri, Feb 21, 2014 at 2:57 PM, Dave Roberts dvr...@ecology.msu.montana.edu mailto:dvr...@ecology.msu.montana.edu wrote: Hi Vaclav, Thanks for your help. I'm running Scientific Linux 6 (EL6-based). when I enter d.mon x0 it says there is no such monitor. Isn't

Re: [GRASS-user] libgrass_gmath

Hi Hamish. Thanks for the help. g.version -r returns 6.4.3 echo $GISBASE returns /usr/local/grass-6.4.3 echo $GRASS_LD_LIBRARY_PATH returns /usr/local/grass-6.4.3/lib echo $LD_LIBRARY_PATH returns /usr/local/grass-6.4.3/lib All good so far. However, ls $GISBASE/lib shows no libgrass_gmath

[GRASS-user] libgrass_gmath

Colleagues, I'm trying to do a simple dissolve on a vector map and getting a library error v.dissolve inp=vmap out=dom_mid_60 column=dom_mid_60 . . . . . . v.extract: error while loading shared libraries: libgrass_gmath.6.4.2.so:

Re: [GRASS-user] compositing rasters

? Thanks, Dave On 12/31/2013 06:00 PM, Dave Roberts wrote: Colleagues, I know this must be easy, but I haven't found it. Suppose I have three grids (a, b, and c) where each grid is 0 or 1, and the 1s are mutually exclusive. I want a new grid where if grid a=1 then newgrid = 1; if grid b=1

Re: [GRASS-user] compositing rasters

to take it up in C with the API. Thanks Tyler! On 01/01/2014 09:56 AM, Tyler Smith wrote: Dave Roberts dvr...@ecology.msu.montana.edu wrote: Colleagues, I know this must be easy, but I haven't found it. Suppose I have three grids (a, b, and c) where each grid is 0 or 1, and the 1s

[GRASS-user] r.update

Friends, After some alternative approaches to a simple problem of compositing rasters (see previous posts, esp. compositing rasters @9:32) I developed a very crude function to update rasters r.update target mask x y updates raster target by substituting y everywhere that raster mask has

Re: [GRASS-user] r.update

Hi Anna, On 01/01/2014 01:50 PM, Anna Petrášová wrote: Hi Dave, On Wed, Jan 1, 2014 at 3:10 PM, Dave Roberts dvr...@ecology.msu.montana.edu mailto:dvr...@ecology.msu.montana.edu wrote: Friends, After some alternative approaches to a simple problem of compositing rasters

[GRASS-user] compositing rasters

Colleagues, I know this must be easy, but I haven't found it. Suppose I have three grids (a, b, and c) where each grid is 0 or 1, and the 1s are mutually exclusive. I want a new grid where if grid a=1 then newgrid = 1; if grid b=1 then new grid = 2; if grid c=1 then newgrid = 3.

Re: [GRASS-user] multiple polygons with same cat

is madness. Any ideas? Thanks, Dave On 11/26/2013 02:25 AM, Markus Metz wrote: On Tue, Nov 26, 2013 at 3:39 AM, Dave Roberts dvr...@ecology.msu.montana.edu wrote: Friends, I'm not exactly a newbie, but still yet quite naive in GRASS. This seems like a simple problem, but I suspect unforeseen

Re: [GRASS-user] multiple polygons with same cat

I would suggest to run v.category inp=geo type=centroid out=new_geo op=add layer=2 --o Thanks Markus! Now I'm getting somewhere. v.info shows geo and new_geo in perfect correspondence for areas, islands, boundaries, etc. d.what.vect shows new_geo with the original data in layer 1 and

Re: [GRASS-user] multiple polygons with same cat

Markus, Thanks a mill! I'll try that when I get back to that machine. I really appreciate you time end expertise. You're a scholar and a gentleman. Dave On 11/26/2013 08:48 AM, Markus Metz wrote: On Tue, Nov 26, 2013 at 4:34 PM, Dave Roberts dvr...@ecology.msu.montana.edu wrote

Re: [GRASS-user] multiple polygons with same cat

Markus, v.to.db map=new_geo layer=2 column=surgeo option=query qlayer=1 qcolumn=surgeo In this example, the column surgeo in layer 2 must exist and must be of the same type like the column surgeo in layer 1. the qcolumn actually had a different name, but with that small correction this

[GRASS-user] multiple polygons with same cat

Friends, I'm not exactly a newbie, but still yet quite naive in GRASS. This seems like a simple problem, but I suspect unforeseen problems with the simple solution. I have imported a surficial geology map from a shapefile. There are 1082 polygons. Each of the polygons with the same

Re: [GRASS-user] polygons and centroids redux

Thanks Hamish. It seems only likely that such a routine would exist. Here's the part where I need a little help though. It appears that v.distance from=pnt to=area dmax=0 upload=cat column=areacat will find and report the cat number of the polygon that points lie within, and I can use that

[GRASS-user] polygons and centroids

Friends, If I understand correctly (based on experience with my own data), when GRASS calculates the topology for vector area data it doesn't actually ensure that the centroid lies within the area it represents. If the area is a torus, or at least hollow in a general way, then the

[GRASS-user] polygons and centroids redux

Friends, This is the second time in two days I have had to post an apology and retraction for hasty questions. I apologize for testing everyone's patience. Thanks Markus; I was composing this message when I saw your post. I mistook a centroid of a polygon too small to plot at the

Re: [GRASS-user] polygons and centroids redux

the file structures of GRASS vectors to attempt that in GRASS. If any GRASS programmers are interested let me know and perhaps we could work it out as an add-on. Thanks, Dave R Markus Metz wrote: Dave Roberts wrote: It does raise a question, however, of what the conditions

[GRASS-user] v.what.rast with centroids

Friends, I have an vector area map with numerous polygons with centroids. When I do v.what.rast vector=A raster=B column=C It appears to run, but doesn't actually enter any data into column C in the associated table in Postgres. Reading the help file, I suspect this is because A is an area

[GRASS-user] r.neighbors with large neighborhoods

I'm working landform analysis using r.neighbors. The help file says that size can go up to 25 (or +/1 12 pixels). I need much bigger neighborhoods than that, so I just entered a large number and it seems to work (although it's slow). Does anybody know what the true limits of the r.neighbors

[GRASS-user] r.neighbors

It appears that running r.neighbors with really large neighborhoods results in mostly NULLs. A neighborhood of 31 seemed to work, but 51 returned only a tiny portion of the map. Dave -- David W. Roberts

[GRASS-user] r.neighbors erroneous posting

Friends, Sorry about an erroneous posting with respect to running r.neighbors with large neighborhoods (51 in this case). My problem was the current region, not r.neighbors which seesm to work fine with large windows. Dave --

[GRASS-user] grass 7 monitor

Fiends, I'm a GRASS newbie trying to choose between GRASS6 and GRASS7 for a new project. I'm working in R and PostgreSQL, but have lots of Arc stuff to import. I realize that GRASS7 did away with d.mon, but is there really no replacement other than the full GUI? If I enter