[GRASS-user] running grass on a cluster

Dears, I am thinking about making my own linux cluster. Any good advice on running GRASS in a machine like this? cheers Carlos -- +-+ Carlos Henrique Grohmann - Geologist D.Sc. a.k.a Guano - Linux User #89721 carlos dot grohmann at gmail

[GRASS-user] Fwd: 1st Call for Papers: Geomorphometry 2009, 29 August - 2nd September, Zurich, Switzerland

Apologies for cross postings FIRST CALL FOR PAPERS Geomorphometry 2009 29 August - 2 September 2009 Zurich, Switzerland http://2009.GEOMORPHOMETRY.ORG e-mail: [EMAIL PROTECTED] PROGRAM CHAIRS Ross Purves University of Zurich Stephan Gruber University of Zurich Tomislav Hengl University of

Re: [GRASS-user] nnbathy

> > I have not seen the original code / license, but would it be possible > to directly integrate the code into GRASS? This would remove the > dependency of an external nnbathy library. > This would be great. cheers Carlos -- +---+ Car

Re: [GRASS-user] create 3d plane from vector lines

Hey Mate, you know, simple dipping surfaces are easy, r.plane will do the job, but _complex_ dipping surfaces (like real faults) are still a work in progress.. cheers G On Wed, Sep 10, 2008 at 21:00, Paulo Marcondes <[EMAIL PROTECTED]> wrote: > 2008/9/10 Carlos Guâno Grohman

Re: [GRASS-user] create 3d plane from vector lines

Basic usage (remember to adjust region settings): >> > >> > v.surf.rst input=contour layer=0 elev=surface >> > >> > Where: >> > >> > contour : name of the map containing your vector lines (iso lines or >> level >> > contours). >> &g

Re: [GRASS-user] create 3d plane from vector lines

your vector lines (iso lines or level > contours). > surface : name of the raster map, obtained from interpolation of the vector > lines. > > More info here: > http://grass.itc.it/grass62/manuals/html62_user/v.surf.rst.html > > I hope that this help you. > > José

[GRASS-user] create 3d plane from vector lines

Hi all, I'm stuck here, trying to create 3d vertical surfaces from 2d vector lines (to represent faults in nviz). hints? TIA Carlos -- +---+ Carlos Henrique Grohmann - Guano Geologist M.Sc - Doctorate Student at IGc-USP - Brazil Linux

[GRASS-user] Trend-surface analysis with GRASS+R: did something changed in sp package?

Hi all (sorry for cross-posting) I trying to do some trend-surface analysis in R using the spatial package (so I can go up to order 6). It's been a while since the last I did it, and my previously used steps are not working this time: >R >library(spgrass6) >library(spatial) >G<-gmeta6() >G gis

Re: [GRASS-user] v.in.ogr weird import

Christian, if you shapefiles and you region are with the same projection/coordinate system, the -o flag is not necessary. also, the "dsn" option must point to the _directory_ were your shps are. like: v.in.ogr dsn=/home/poseidon/Work/vector_data/ output=tracklines2 layer=Tracklines2.shp min_area=

[GRASS-user] Re: errors compiling on Zenwalk [Solved]

Just to update you all. I fixed the problems by removing my old grass_trunk dir and doing a new svn checkout. I changed the OS (from Ubuntu to Zenwalk), so there were some leftovers related to ubuntu.. cheers Carlos On Fri, Jul 4, 2008 at 14:35, Carlos Guâno Grohmann <[EMAIL PROTEC

Re: [GRASS-user] errors compiling on Zenwalk

> > There seems to be a problem with Your PNG library. Specifically, you > appear to have multiple, incompatible versions installed with the same > name. > Thanks for your help, Glinn, but it doesn't look like I have more than one libpng installed: root[guano]# netpkg list |grep installed |grep p

[GRASS-user] errors compiling on Zenwalk

Hi all, I'm trying to compile latest svn in Zenwalk 5.2 (Slackware based), but I got lots of errors. The first module of the error list was d.ask, so I went to run make inside it: root[d.ask]# make gcc -L/home/guano/tmp_install/gis/grass_trunk/dist.i686-pc-linux-gnu/lib -s -Wl,--export-dynamic -

Re: [GRASS-user] Is the SRTM dataset a DEM or a DSM?

IMO its a DEM, since the "z" value represents elevation, including tree canopy and urban features. I personally don't like the term DSM because it can be related with any kind of Surface, and DEM (and DTM, when the "z" values represent the altitude) is related with the _topographical_ surface. che

Re: [GRASS-user] RST - how does it chooses from near points?

8 at 5:19 AM, Markus Neteler <[EMAIL PROTECTED]> wrote: > Maybe best ask to Helena who is on the road and not subscribed > to this list AFAIK... > please post the answer then! > > markus > > On Tue, May 27, 2008 at 9:39 PM, Carlos Guâno Grohmann > <[EMAIL PROTECTED]&

Re: [GRASS-user] GUI equivalent of command

d, 2008-05-28 at 14:02 -0300, Carlos "Guâno" Grohmann wrote: >> Can I ask _where_ in your screen is gGis-manager? > > Carlos, > > an exceptionally interesting question upon the human brain (maybe)? ;-) > > >> >> I taught a short course on GRASS a few months

Re: [GRASS-user] GUI equivalent of command

Can I ask _where_ in your screen is gGis-manager? I taught a short course on GRASS a few months ago, and I noticed that most students would let gism on the right side of the screen and the display on the left (not sure why) The thing is that all menus will open to the right, so the best placement

[GRASS-user] RST - how does it chooses from near points?

It just came to me: if I have a vector map to be interpolated by RST, how does the algorithm chooses between points that are very close to each other? And if I have more than one point with the same coordinates, but different values? thks all Carlos -- +-

[GRASS-user] rectangle behind colorscale in ps.map?

I just noticed that, in ps.map, while the scalebar has an option for a filled background, colorscale doesn't. I think it would be a nice option. What do you guys think? Carlos -- +---+ Carlos Henrique Grohmann - Guano Geologist M.Sc - Doc

[GRASS-user] geoid data from TOPEX

Hello all. I downloaded some geoid data from ftp://topex.ucsd.edu/pub/global_geoid_2min/ there are three files: geoid.egm96.grd geoid.img.9.2 geoid.img.9.2.ers

Re: [GRASS-user] a few suggestions and questions

On Tue, Mar 4, 2008 at 3:51 AM, Jarosław Jasiewicz <[EMAIL PROTECTED]> wrote: > > > >> is plan curvature in r.param.scale broken? I can't get a map of it. > >> profc works fine. Also is it possible to make r.param.scale work in > >> latlong regions? (please?) > >> > it is imposible due to po

Re: [GRASS-user] removal of duplicate points

maybe a script to remove each fifth line of the ascii? carlos On Wed, Mar 5, 2008 at 3:27 PM, Nikos Alexandris <[EMAIL PROTECTED]> wrote: > > On Wed, 2008-03-05 at 09:58 -0800, Dylan Beaudette wrote: > > Hi, > > Hi Dylan > > > > > I have some "squares" which are stored as polygons. When con

[GRASS-user] a few suggestions and questions

Hello all first I'd like to make a few suggestions to enhance (IMO) our favorite GIS: - normalize the options in all modules. I noticed that while most commands take "--overwrite", some (r.neighbors) use "-o" - some modules require a dummy value when output a list (r.mask, r.proj, v.proj..). Is t

[GRASS-user] r.resamp.rsf fails

Hello all I just tried to resample a raster from 0:0:30 to 0:30 resolution, and calculating the curvatures at the same time. I have about 15Gb of free disk space, but after a while, the command fails complaining about not enough disk space... here is the output: Processing all selected output f

[GRASS-user] GRASS tutorial in Portuguese (pt-br)

Hello all. This is just to announce that a new tutorial is available, in Brazilian Portuguese (pt-br). I wrote it over the last year, and "tested" it in short-course I gave last week. The plans are to keep updating it, with new sections and errors corrections. Some of it is based on the GDF tutori

[GRASS-user] circular pallete?

Hello all. does anyone know how I can draw a circular colorscale? maybe using some illustration program, saving as eps? The intent id to draw a circular colorscale for aspect maps, so it would look nicer than a rectangular one. cheers Carlos -- +--

[GRASS-user] anaglyphs

I just saw on the screenshot section of the web site a nice anaglyph of Mars (http://grass.itc.it/screenshots/images/mars1ana.jpg) how was it made? cheers Carlos -- +---+ Carlos Henrique Grohmann - Guano Geologist M.Sc -

Re: [GRASS-user] Interpolation with faultlines?

The attached picture is a sketch I made based on what I remember from a conference, long time ago, about some software that did interpolate with faultlines and how it worked. Carlos On Thu, Feb 21, 2008 at 4:42 PM, Maciej Sieczka <[EMAIL PROTECTED]> wrote: > Moritz Lennert pisze: > > > > On 13/

Re: [GRASS-user] circular neighborhoods?

Thanks for the quick answer Tom. Carlos On Thu, Feb 21, 2008 at 3:52 PM, Tom Russo <[EMAIL PROTECTED]> wrote: > On Thu, Feb 21, 2008 at 03:11:43PM -0300, we recorded a bogon-computron > collision of the <[EMAIL PROTECTED]> flavor, containing: > > > Yes, Eric, that is what it does for a _squar

Re: [GRASS-user] circular neighborhoods?

Yes, Eric, that is what it does for a _square_ neighborhood. I am a little confuse about the actual shape of the _circular_ neighborhood. using your examples: will a 3x3 circular neighborhood look like this:? ---o--- o-X-o ---o--- and a 5x5? ---o-o-o--- o-o-o-o-o o-o-X-o-o o-o-o-o-o ---o-o-o--

[GRASS-user] circular neighborhoods?

Hello all. I was thinking about the circular neighborhoods that r.neighbors use. How exactly are they shaped? I mean, in a 3x3 window, does the circular one looks like a cross? and then it start to look more like a circle as the size increases? cheers Carlos -- +---

[GRASS-user] r.out.gmt -- color palette with gaps?

Hi all. I have this color shaded relief map created with r.his and r.composite. I want to use it as a base map in GMT, sou I went to the AddOns page to get the r.out.gmt script, which creates the color palette (.cpt) for me. But when I try to create the map with GMT, I get this msg: [EMAIL PROTEC

[GRASS-user] Interpolation with faultlines?

I remember that some time ago, there was some discussion on interpolation using faultlines. Any advances in that subject? cheers Carlos -- +---+ Carlos Henrique Grohmann - Guano Geologist M.Sc - Doctorate Student at IGc-

Re: [GRASS-user] wxgui issue ( No module named wx)

Thanks Martin. I always forget about that dependency (fresh installed system).. cheers Carlos On Feb 11, 2008 2:04 PM, Martin Landa <[EMAIL PROTECTED]> wrote: > No, > > 2008/2/11, Carlos Guâno Grohmann <[EMAIL PROTECTED]>: > > Hi, I just updated from svn, to test th

[GRASS-user] wxgui issue ( No module named wx)

Hi, I just updated from svn, to test the new wxgui, but I got some errors: GRASS 6.3.svn (amsul_wgs84):~ > Traceback (most recent call last): File "/usr/local/grass-6.3.svn/etc/wxpython/wxgui.py", line 53, in import gui_modules.utils as utils File "/usr/local/grass-6.3.svn/etc/wxpython/gu

Re: [GRASS-user] OFF-TOPIC - Earth Curvature in profiles

Well thanks all for the answers! This is what I did: - used r.profile to get (dist, elev) data from E-W profiles. - I didn't considered the elipsoid, I used and approximation to a sphere (to simplify my life :)) - from the total distance, I calculated the arc of curvature (theta) - now I have a s

[GRASS-user] Fwd: Request for assistance: Cape Town Capacity Building workshop on GRASS

Forwarding to the list,as I won't be available in March :(.. Carlos -- Forwarded message -- From: Ravinder Bhatia <[EMAIL PROTECTED]> Date: Jan 14, 2008 12:59 PM Subject: Request for assistance: Cape Town Capacity Building workshop on GRASS To: [EMAIL PROTECTED], [EMAIL PROTECTED

Re: [GRASS-user] How to calculate the area of a rastermap

r.surf.area? r.stats? Carlos On Jan 14, 2008 5:47 AM, Philipp Steigenberger <[EMAIL PROTECTED]> wrote: > > Hi list, > I know there is a posibility to calculate the area of a rastermap, but I > cannot find the command. > > I have a water.outlet map. The area data range is 1 to 1 > > Thankyou

[GRASS-user] OFF-TOPIC - Earth Curvature in profiles

Sorry for the OT, but can anyone point me some reference (paper, web, etc) that explains how can I draw a topographic profile using the Earth´s curvature? I am thiking about the output of r.profile (ascii, distance from origin + elevation), in a section of about 3000 km, with a vertical exaggeratio

Re: [GRASS-user] Triangle plot with correspoding map

Maybe GMT can do the triangle plot? Carlos On Nov 29, 2007 4:21 PM, Martin Wegmann <[EMAIL PROTECTED]> wrote: > On Thursday 29 November 2007 17:07:59 Michael Barton wrote: > > You should be able to gather the data to do this with r.stats. For example, > > from the Spearfish soils maps... > > >

Re: [GRASS-user] object-based classification (vs pixel-based)

AFAIK, SPRING, a GIS program developed by the Brazilian National Space Research Institute, has excellent classifications algorithms. I once heard that a comparison was made between several algorithms (including e-cog), and SPRING was considered the best (don't know the title or author of the articl