[GRASS-user] octave

'. Kein 'map_data'-Array in /home/achim/fmask.mat gefunden. Can anyone please give a hint or a workaround-idea? Achim -- View this message in context: http://n2.nabble.com/octave-tp2134613p2134613.html Sent from the Grass - Users mailing list archive at Nabble.com

Re: [GRASS-user] octave

Hi, you are so right! Works fine. Wer lesen kann ist klar im Vorteil. (Those who can read have a clear advantage) I have read too much the last days (my first grass project..). Thanks a lot for answering immediately, Hamish! Achim -- View this message in context: http://n2.nabble.com

[GRASS-user] r.watershed: whats wrong?

and after on that laea-projection it was like mentioned. I tried on grass63 and on grass64 (and different thresholds, new output-names...). Both the same. (On opensuse 11.1 64) r.watershed elevation=etopo1_...@achim depression=etopo1_...@achim threshold=10 accumulation=r_watershed_etopo1_accu

Re: [GRASS-user] Determine surface areas

occur, just tell. Hope I could help, Achim Nikolaus Arnold schrieb: Hi! I am new to using GIS and GRASS. I am currently working on a task where I have to determine the type of surface around a specific coordinate. For example what is the total water surface area in a 100km radius around

[GRASS-user] qgis + grass-plugin = gdal-problem

immediately with the same error. Any idea why? achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] qgis + grass-plugin = gdal-problem (update)

Correction: achim schrieb: Hallo, starting qgis(1.0.1) with grass64 I can open a grass location, but when I open a rastermap, qgis terminates with following error: qgis: symbol lookup error: /usr/lib/gdalplugins/gdal_GRASS.so: undefined symbol: G_no_gisinit When I start qgis

Re: [GRASS-user] qgis + grass-plugin = gdal-problem (update)

Hi, I used the goe-repository files for installing grass (6.4) and grass63. Do I have to compile myself? Cant I clean old libraries by myself and reinstall grass from the repository? Thanks, achim Nikos Alexandris schrieb: On Fri, 2009-02-27 at 11:47 +0100, achim wrote: Correction: achim

Re: [GRASS-user] qgis + grass-plugin = gdal-problem (update)

the old and reinstalling of the packages via yast does not help. Now I'm using only grass, but I would really like to use the comfortable qgis in future too. Thanks, achim Zahid Parvez schrieb: On Sat, Feb 28, 2009 at 9:09 AM, Nikos Alexandris nikos.alexand...@felis.uni-freiburg.de

[GRASS-user] intersection of network-lines and areas

hints are welcomed. Thanks in advance, achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] intersection of network-lines and areas

...but how can I query my raster-streams in r.water.outlet? I cannot write in all points manually. Do I have to write a script for that? thanks, achim Markus Metz schrieb: achim wrote: Hello, I cannot find a solution for extracting those areas that are crossed by a line. And further

Re: [GRASS-user] intersection of network-lines and areas

-cells (their coordinates) btw: I tried with those small basins produced by r.watershed to extract the boundaries crossed by rivers: that didn't work (with what I did). On the other hand the outled solution would be a bit more precise, if it would work ;-) achim Markus Metz schrieb: achim

[GRASS-user] v.to.rast Converted points/lines: 0 of 47763

Hi, today another question. My problem: I converted boundaries from an area vmap to lines via v.type v.type input=git...@achim output=gitter_lines type=boundary,line --o Now I want to convert these lines to raster-cells via: v.to.rast --overwrite input=gitter_li...@achim output=gitter_lines

Re: [GRASS-user] v.to.rast Converted points/lines: 0 of 47763

Thanks Hamish, but I do have cats. I did v.clean and I tried with v.category, too. But it doesn't help. Maybe my cats addressing the nodes??? achim Hamish schrieb: achim wrote: today another question. My problem: I converted boundaries from an area vmap to lines via v.type v.type input

Re: [GRASS-user] v.to.rast Converted points/lines: 0 of 47763

Hi all, I solved by adding cat via v.category (only) for the lines. Before only centroids cats where present by default. v.clean not nesessary. Thanks Hamish! achim achim schrieb: Thanks Hamish, but I do have cats. I did v.clean and I tried with v.category, too. But it doesn't help

[GRASS-user] r.water.outlet and SELECT WHERE Maximum

with the highest value. I converted the raster to points and tried to select with SELECT WHERE. How can I use an maximum-statement in it? I couldn't fix it out. Or is there another way? (I use the default db) Best regards, achim inline: wateroutlet.jpg___ grass-user

[GRASS-user] scripting mapcalc

? Or is there another (and faster) way to query raster-data without writing a C-Program? I'd like to do it inside grass. Otherwise I would export the map to octave to calculate there, but its not the gentle way I think. Thanks, achim ___ grass-user mailing list grass-user

Re: [GRASS-user] scripting mapcalc

Its awful! That does work (in tsch so far! I tried -not alone- for hours... Thank you very much, Nikos! Maybe you know a way to make r.mapcalc quiet? Or maybe to query a rastermap col-row wise? Greetings from Potsdam at the moment. achim Nikos Alexandris schrieb: Try this: r.mapcalc river

Re: [GRASS-user] scripting mapcalc

,river) syntax error, unexpected '=', expecting '@' or '(' Parse error Any ideas? Thanks (anyway), achim Nikos Alexandris schrieb: Hallo Achim! On Thu, 2009-03-05 at 15:55 +0100, achim wrote: Its awful! That does work (in tsch so far! What is _tsch_? Do you mean _tcsh_? Sorry for my

Re: [GRASS-user] qgis + grass-plugin = gdal-problem (update)

I use a 64 bit system and 64 bit packages (for suse 11.1) achim Otto Dassau schrieb: Hi Achim, I build the opensuse packages in the Application:/Geo repository and will check this. Do you use the 32 bit or 64 bit packages for 11.1? regards, Otto On Mon, 02 Mar 2009 10:45:00 +0100

Re: [GRASS-user] qgis + grass-plugin = gdal-problem (update)

/gdal_GRASS.so: undefined symbol: G_no_gisinit I'm afraid I made something wrong with my openSUSE 11.1 64bit... Sorry for being so impatient, achim achim schrieb: I use a 64 bit system and 64 bit packages (for suse 11.1) achim Otto Dassau schrieb: Hi Achim, I build the opensuse packages

Re: [GRASS-user] qgis + grass-plugin = gdal-problem (update)

Great! Now it works. Thank you Otto for effort. ...but...to handle raster files is pretty slow in QGIS! My Windows-Qgis works faster and not-grass-mapset-maps are handled fine as well. Any thoughts? achim (Sooner or later I get following message: Warning: QPainter::end: Painter not active

[GRASS-user] DB Driver

Unable to open database /home/achim/grass/globe2/achim/sqlite/ by driver sqlite The same is with DB driver. When I make a new table in the DB I get: Using user specified table name: AOI_nontant Creating new DB connection based on default mapset settings... Creating table with columns (cat

Re: [GRASS-user] DB Driver

DB-Driver's eating my nerves. Im running grass6.4 on 64bit opensuse11.1 Has anybody had and maybe fixed a problem concerning database driver-errors? I can hardly go on working with errors like this: Removing vector a...@achim DBMI-SQLite driver error: Unable to open database: unable to open

Re: [GRASS-user] Some issues with r.mapcalc

Hi, you can use another if-clause,to test, if the other map is null using isnull(railroads) eg. Another way could be to use ||| (3x|) to handle null-values (for that see: http://grass.itc.it/grass64/manuals/html64_user/r.mapcalc.html section sull support). achim Fulvio Mastrogiovanni schrieb

Re: [GRASS-user] working with vectors

grass, ...I spend a lot of time... Maybe there should be some things easier, more intuitive and better connected that one is led better thought all these all days procedures. Thanks a lot, achim Hamish schrieb: Achim: , measure length of lines even in an latlong projection... Moritz: v.to.db

Re: [GRASS-user] Density of drainage

Thanks for this link Carlos. Very interesting! achim Carlos Guâno Grohmann schrieb: Maybe you want to check this paper: Grohmann, C.H. 2004. Morphometric analysis in Geographic Information Systems: applications of free software GRASS and R. Computers Geosciences, 30 (9-10):1055-1067

Re: [GRASS-user] working with vectors

command v.centroides is missing (shouldnt things like that not be scripted and easily usable ..by clicking and typing?) Besides I miss some self explaining pictures in the documentation... wish you all the best, achim achim schrieb: Hi, its not as easy as it should be... 1) Having two sets

Re: [GRASS-user] working with vectors

Thanks Markus! There is still remaining a problem: by removing dangles I do not delete 'open ends' until the line is cut by another one. But that what I need. Otherwise I will lose the character of geometrically closed areas... to illustrate I attached a sceenshot.., achim Markus GRASS

Re: [GRASS-user] working with vectors

--overwrite input=grid_af_lines_plus_accu400_ar...@achim output=grid_af_lines_plus_accu400_areas_cl...@achim type=boundary tool=rmdangle,rmbridge,rmsa thresh=10.0.01 and then again just with tool=rmdangle thresh=10 achim Markus GRASS schrieb: achim wrote: Thanks Markus! There is still

[GRASS-user] IN: raster-flow-direction OUT:vector-network?

Hello, I am searching for a good idea to convert a raster-flow-direction map into a vector-network map. Probably I will have to write a script. If it is possible at all... In case of writing a script it mean to me: how to produce a line within r.mapcalc? Has anyone a hint? Cheers, achim

Re: [GRASS-user] Re: IN: raster-flow-direction OUT:vector-network? (achim)

start with pre-produced flow direction, accumulation... Any workaround idea or scripting tips? cheers again, achim PS: illustration on http://lists.osgeo.org/pipermail/grass-user/attachments/20090520/6198f353/rasterflow-to-network.png PPS: r.mapcalc 'log_accumulation=log(abs(accumulation)+1

[GRASS-user] Compile grass65 svn: wx error

the error. Thanks for hints! Achim PS: 64-bit support needs fftw2 compiled with -fPIC #this applies to FFTW2, not GRASS: cd fftw-2.1.5/ CFLAGS=-fPIC ./configure make make install what I did. My configuration looks like this: CFLAGS=-O3 -msse3 -march=core2 -Wall LDFLAGS=-s ./configure

Re: [GRASS-user] Compile grass65 svn- QGIS memory access error

. Reinstalled qgis1.1, installed qgis1.0 (same error). Should not be so difficult, hu? Thanks again, Achim PS: wx.Python error still exists, but I can use the old gui as well. achim schrieb: Hello, thanks, but that does not seem to be the (my) mistake. I did a new checkout and also checked

[GRASS-user] Networks

the questions more or less depend on each other. Hoping, someone has some experience with that kind of stuff, kindly regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Networks

achim schrieb: Hi, I am going to do some work on drainage networks I created. I could not figure out some basic procedures. Maybe, you have some ideas how to work with some of the following questions/tasks: 1) how is a network stored? creating it via v.net from a multiline map says

Re: [GRASS-user] Networks

achim schrieb: achim schrieb: Hi, I am going to do some work on drainage networks I created. I could not figure out some basic procedures. Maybe, you have some ideas how to work with some of the following questions/tasks: 1) how is a network stored? creating it via v.net from

Re: [GRASS-user] Networks

achim schrieb: achim schrieb: achim schrieb: Hi, I am going to do some work on drainage networks I created. I could not figure out some basic procedures. Maybe, you have some ideas how to work with some of the following questions/tasks: 1) how is a network stored? creating it via

[GRASS-user] grass65 no vectors seen anymore

Hi, I compiled grass 65 again via svn and suddenly no more vectors are displayed on mon, but vector work is possible and tables are seen... Does anyone has the same problem? Achim (Im using opensuse11.1 64 bit) ___ grass-user mailing list grass-user

Re: [GRASS-user] grass65 no vectors seen anymore

achim: I compiled grass 65 again via svn and suddenly no more vectors are displayed on mon, but vector work is possible and tables are seen... Does anyone has the same problem? Hi Achim! I compiled grass65 yesterday. No problem here, everything works fine! Nikos Hi Nikos, I do

Re: [GRASS-user] tables connection in database

always have the problem that the table is empty. And adding category is not enough to add an entry for every geometry object... well. Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] tables connection in database

Yes, thanks, but how to force that every single geometry object (of one kind) gets an entry? Achim (just to mention: And why aren't those commands reachable in an useful order? One always has to check whether the table are built, go and add a table, on another place set connection

[GRASS-user] table entry for every geometry object(s id)

...I mean: how to get an table entry for every vector objects Id? (every geometry object has an unique id) achim wrote: Yes, thanks, but how to force that every single geometry object (of one kind) gets an entry? Achim (just to mention: And why aren't those commands reachable

Re: [GRASS-user] tables connection in database

Hi Moritz, thanks for reply and this detailed explanation. I try to report my problem with an example: reset to initial point v.db.connect -d map=my_li...@achim db.droptable -f table=testtable my_lines: | Type of Map: vector (level: 2) | | Number of points: 0

Re: [GRASS-user] tables connection in database

Thats exactly the problem: It shows nothing. None of my lines has any cat. Achim Moritz Lennert wrote: On 26/06/09 15:24, achim wrote: Hi Moritz, thanks for reply and this detailed explanation. I try to report my problem with an example: reset to initial point v.db.connect -d map=my_li

Re: [GRASS-user] tables connection in database

with boundaries? (And why doesn't it work with the other one?) Achim Achim Moritz Lennert wrote: On 26/06/09 15:24, achim wrote: Hi Moritz, thanks for reply and this detailed explanation. I try to report my problem with an example: reset to initial point v.db.connect -d map=my_li...@achim

Re: [GRASS-user] tables connection in database

Sorry when getting on nerves with this stupid problem... ...for me its not stupid, but also getting on nerves. ...I always did and do: v.category --overwrite input=my_li...@achim output=my_lines2 type=line layer=1 Vector map my_lines2 already exists and will be overwritten Processing features

[GRASS-user] v.net table layers

of centroids:0 Number of kernels:0 | | Map is 3D: No | Number of dblinks: 1 Table-manager shows nothing!* when I run v.category with report, I get: v.category --overwrite input=aaa_t...@achim output=aaa_te...@achim option=report type=point layer=2 Layer/table

[GRASS-user] r.mapcalc compile errors

Please help: What could be missing? Compiling on ubuntu 9.04 64bit (linux mint) Errors in: /usr/local/src/grass6_devel/lib/db/sqlp /usr/local/src/grass6_devel/db/drivers/ogr /usr/local/src/grass6_devel/db/drivers/dbf /usr/local/src/grass6_devel/raster/r.mapcalc Thanks a lot! Achim

Re: [GRASS-user] tables connection in database

:-) achim Moritz Lennert schrieb: On 26/06/09 16:38, achim wrote: Thats exactly the problem: It shows nothing. None of my lines has any cat. Well, then you need to add them with 'v.category option=add' ;-) Moritz Achim Moritz Lennert wrote: On 26/06/09 15:24, achim wrote: Hi Moritz

[GRASS-user] v.net report - table update

consists of cat and a list of cats from lines each node is connected to (see PS). It seems more complicated to update this inside grass. - Is it useful to get to know how grass deals with nodes-lines in network internally?? Thanks, Achim PS: 1 1 2 1 3 2 4 2 5 3 6 3 7 4,5,386 8 4 9 5 10 6,222,264

[GRASS-user] more on v.net: break lines on nodes

Hi, another question..: is it possible to break lines from the network on nodes? I need that to describe and query connections between the nodes. Thanks again! Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org

Re: [GRASS-user] more on v.net: break lines on nodes

Hi, as an explanation I draw a little picture... I like to have each line extra to have a common node on each crossing. I would to have that in order to try handling tree structures and some analysis in a database. Thanks, achim Moritz Lennert schrieb: On 03/07/09 12:10, achim wrote: Hi

Re: [GRASS-user] more on v.net: break lines on nodes

in an network of roads. Maybe there is a possibility to cut out line features on the border of areas? achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] more on v.net: break lines on nodes

Sorry, not very clear... They are snapped! I wanted to show that I have 1) two lines (two cats) with no common nodes on the network 2) I want the longer to be broken on the node of the longer one in order to have a common node (and three lines with three cats) achim Moritz Lennert schrieb

Re: [GRASS-user] flow map in r.watershed

sizes. achim Margherita Di Leo schrieb: Hi list! In the documentation of r.watershed (grass 6.4) I found that it's possible to use the following (optional) input map: flow Input map: amount of overland flow per cell. This map indicates the amount of overland flow units that each cell

Re: [GRASS-user] more on v.net: break lines on nodes

. I will have a closer look at the significant awk!) achim inline: breaklinesonnodes2.png___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] 1 degree = 1 km*1000 ?

Hi all, Uploading the lengths of lines in 1)km and 2)degrees in an lat-long location with the v.to.db module returns a strange result as d = 1000*km So what do these (decimal)degrees mean? achim ___ grass-user mailing list grass-user@lists.osgeo.org

Re: [GRASS-user] 1 degree = 1 km*1000 ?

Its in grass 6.5: v.to.db map=riv...@achim option=length units=d columns=a_lenght same as v.to.db map=riv...@achim option=length units=degrees columns=a_lenght (there is no degree-option in grass 6.4; I am interested in length relative to an degree-raster) achim Hamish schrieb: achim wrote

[GRASS-user] dissolve

(table entries, cat) of one of them I have not seen? Thanks in advance, achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] dissolve

not that necessary. But: I am still looking for a straight way to merge some (eg. 2) connected areas and keep the information of one of them! achim achim schrieb: ...and keep table data Hi, I am going to merge some vector areas sharing a common value. I want to keep the information in my table

[GRASS-user] v.select relate

Hi, does anyone know, how the operator relate is meant in v.select (grass6.5)? Only explanation in module description is: relate - feature A is spatially related to feature B And a parameter relate is required, which isn't in description too. Cheers, Achim

[GRASS-user] v.edit break ERROR: Attempt to delete dead feature

Hi all, I try to break a couple of lines on specified points (nodes in a network to get separated lines). I do this with for one example-point successfully: v.edit map=laflo_br...@achim layer=1 type=line tool=break ids=0-999 thresh=-1,0.01,0.01 coords

Re: [GRASS-user] v.select relate

Hi Martin Martin Landa schrieb: Hi, 2009/8/12 achim a...@jupiter.uni-freiburg.de: does anyone know, how the operator relate is meant in v.select (grass6.5)? Only explanation in module description is: relate - feature A is spatially related to feature B It checks if elements in the DE

Re: [GRASS-user] v.edit break ERROR: Attempt to delete dead feature

in a network to get separated lines). I do this with for one example-point successfully: v.edit map=laflo_br...@achim layer=1 type=line tool=break ids=0-999 thresh=-1,0.01,0.01 coords=32.69583,8.670833 but doing this with a list of more than 6 coors or having the same

Re: [GRASS-user] v.edit break ERROR: Attempt to delete dead feature

both reported issues are serious bugs of v.edit. Can you fill trac ticket for that? Just to avoid that it will forgotten. I will try to take a look ASAP. I'll write a report then. Do you (or anyone else) have an idea how else to get the lines splitted on these points? Achim

[GRASS-user] unable to locate GEOS library (grass 7 configure)

/wxPython.h, but why its not found?) Any idea? Cheers, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Very high resolution topographic map of Europe: need help and advices: UPDATE

, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Multiple v.net.path parameters

to handle this? Especially: do you know if breaking the lines (eg. dark green one at point 5) is possible with networking techniques? Sorry for asking you directly, but I hopefully thought you are deep inside the topic at the moment. Thanks anyway for your work! Achim Daniel Bundala schrieb

[GRASS-user] Multiple v.net.path parameters

have an idea how to handle this? Especially: do you know if breaking the lines (eg. dark green one at point 5) is possible with networking techniques? Sorry for asking you directly, but I hopefully thought you are deep inside the topic at the moment. Thanks anyway for your work! Achim Daniel

Re: [GRASS-user] Multiple v.net.path parameters

Hamish schrieb: achim wrote: In attached example it is possible to calc path from 1 to 4 and from 5 to 6, but not from 1 to 2,3,5,6 or from 5 to anywhere expect 6 and so on. Do you have an idea how to handle this? Especially: do you know if breaking the lines (eg. dark green one

Re: [GRASS-user] v.edit break ERROR: Attempt to delete dead feature

Hi all, so I wrote a little script as workaround I want to share while renew_cats just looks like: v.category input=$1 output=$1_nocat option=del type=$3 layer=$2 --o v.category input=$1_nocat output=$1 type=$3 layer=$2 --o Its really slow, but does its job, Greetings, Achim achim schrieb

Re: [GRASS-user] v.edit break ERROR: Attempt to delete dead feature

) ## update network table, line layer sqlite3 /home/achim/grass/sqlite_db UPDATE $1 SET start=$start,end=$end WHERE cat = $cat; done line_end_cats.txt Can't you do this with v.to.db option=start / end ? Don't know if this is faster, though... it would be faster

[GRASS-user] magic?

. the same with use=attr or usr=val. Another vector map also does not convert some areas. The missing areas are not special What happens? Magic? I tried it with grass64 and newly compiled grass65. (OpenSuse 11.1 64bit) Achim PS: Layer: 1 Typ AnzahlMinMax Punkt 0

Re: [GRASS-user] magic?

Hi, I tried a lot. And I found a solution: I made a buffer around the area with 0 distance. Then v.to.rast works. If anyone knows why, it would be very interesting for me. Moreover, when this happens in a big dataset, the error will probably not recognized. Thanks for attention, Achim achim

Re: [GRASS-user] magic?

Milton Cezar Ribeiro schrieb: Hi Achim, could you, please, share with us your region -p ? bests milton 2009/8/20 achim a...@jupiter.uni-freiburg.de mailto:a...@jupiter.uni-freiburg.de Hi, I tried a lot. And I found a solution: I made a buffer around the area

Re: [GRASS-user] magic?

and making areas? Is there a problem with averaging? Best regards, Achim achim schrieb: sure, its the nile catchment at: 4326 projection: 3 (Latitude-Longitude) zone: 0 datum: wgs84 ellipsoid: wgs84 north: 31:27:30N south: 4:01:30S west: 23:27E east: 39:48E

[GRASS-user] v.to.rast: line differs from point

is independent from raster resolution. Is this a known inconsistence or a bug? Or am I doing something wrong? Thanks a lot in advance, Achim inline: v.to.rast.png___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] another v.net - question

all connected lines? Best regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] opening Grass problem

/index.php Achim juan carlos millord schrieb: Im so new in grass gis, so i look for help on freenode and told me about the mail list ,there i found out that i could install it from the qgis package, and i did it, now when i try to open it this appeare: Error setting region (Problem

Re: [GRASS-user] another v.net - question

with type=point). Once again, I wonder and once again a light dawned on me. Thanks for participation, Achim achim schrieb: Hi, I am still dealing with this serious problem (for me at least). v.net produces sometimes two nodes, where one should be, while on some points, where (tree) lines

Re: [GRASS-user] installing grass issue

with libgdal1-1.3.2 It seems, here you have a problem with two versions of gdal: just instal one of them. Achim libgdal1-1.3.2 (version 1.3.2-4) is to be installed. dpkg: error processing libgdal1-1.3.2_1.3.2-4_i386.deb (--install): conflicting packages - not installing libgdal1-1.3.2 Errors

Re: [GRASS-user] r.watershed and bridges

If you have a small region and you know, where the bridges are, I guess fastest method is to do it manually. Otherwise r.carve would do good here. To find bridges maybe the gradient of hight will help (slope). Best regards, Achim Micha Silver schrieb: Using the new ASTER DEM data it seems

Re: [GRASS-user] MAP Calculator mean of eight neighbors to interpolate 0 value in raster map

r.mapcalc newmap = if ( yourmap==0 , ( sum( yourmap[-1,1] , yourmap[0,1] , ...)/8 ) , yourmap) is that what you mean? stephen sefick schrieb: if(0, (sum([-1,1], [0, 1], [1,1], [-1,0], [0,0], [1,0],[-1,-1], [0,-1],[1,-1])/8)) I want to use mapcalc to do the above. I am missing a syntax

Re: [GRASS-user] MAP Calculator mean of eight neighbors to interpolate 0 value in raster map

what about setting all zero-values to NULL (r.mapcalc nullmap=(if (map==0,null(),map)) and then running r.fillnulls? (http://grass.itc.it/grass64/manuals/html64_user/r.fillnulls.html) A. stephen sefick schrieb: only the no zero values. I could probably do something like if

[GRASS-user] Incompatible library version for module

After installing the new SVN of GRASS 6.5, I get following error using v.category: ERROR: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. Can anybody help please? Has it to do with the grass-addons I installed before? Achim PS

Re: [GRASS-user] Incompatible library version for module

:-) Hi Nikos, that did it! (reinstalled gdal-grass, make clean, make, make install) Thanks a lot, Achim Nikos Alexandris schrieb: On Mon, 2009-09-21 at 14:56 +0200, achim wrote: Incompatible library version for module Hi Achim :-) Recompile the gdal-grass-plugin. That should be it [1

Re: [GRASS-user] stream network extraction

Hi Markus, That is what was missing in stream-network analyzes! Great to have this! I didnt have a deeper look yet, but I will test and probably enjoy the script (in fast C-code). Thank you for that! Achim Markus Metz schrieb: Hi all, in grass-addons is a new module for clean stream

[GRASS-user] reclass

if column option is used and column type is integer (there is nothing which could be written to the table). But couldn't be there a table with value-integer as cat? So how can I identify areas with the value? Thanks, Achim PS: workaround would be: v.to.rast with old values update centros

Re: [GRASS-user] reclass

PS: workaround would be: v.to.rast with old values update centros of reclassed map from that raster map - but it seems a bit in-elegant.. ...and which is a bit complicated as centroids cannot be used in v.what.rast... ...and conversion into points produces more than one point for some

Re: [GRASS-user] reclass - multipolygon?

or multiple with the same cat (as I thought) Any suggestions are very welcome achim achim schrieb: PS: workaround would be: v.to.rast with old values update centros of reclassed map from that raster map - but it seems a bit in-elegant.. ...and which is a bit complicated as centroids cannot be used

[GRASS-user] thresh in v.select?

Hi all, I am using grass6.5, so I can use some v.select options. Now I have a general problem with objects that are very, very close to each other: only some digits far behind the comma are different. Is there a way to define the accuracy? Thanks for hints, Achim

Re: [GRASS-user] thresh in v.select?

PM, achim a...@jupiter.uni-freiburg.de wrote: Hi all, I am using grass6.5, so I can use some v.select options. Now I have a general problem with objects that are very, very close to each other: only some digits far behind the comma are different. Is there a way to define the accuracy

Re: [GRASS-user] serious problem with ROUND-OFF

? ...how can I find out the direction of the line? A achim schrieb: Dear grass users, I think I know what is needed... to solve the problem (see below, mainly coming from splitting lines on edges between raster-cells), I will have to: 1) identify the verts 2) move these verts

Re: [GRASS-user] serious problem with ROUND-OFF

!! (Even though v.buffer would take sooo... long) Best regards, Achim ? Hamish --- On Wed, 30/9/09, achim a...@jupiter.uni-freiburg.de wrote: From: achim a...@jupiter.uni-freiburg.de Subject: Re: [GRASS-user] serious problem with ROUND-OFF To: grass-user grass-user

[GRASS-user] degree - time conversion

...by the way: is there a build in possibility to convert lat-long degree coordinates in time coordinates? (to change this in a table) ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] degree - time conversion

...I just need the pure conversion from decimal to sexagesimal(;-)) to convert the output of eg.: v.to.db -p map=li...@achim option=start , which is decimal to D:M:S in the table. Is there something like cs2cs? A Markus Neteler schrieb: On Wed, Sep 30, 2009 at 11:01 AM, achim a...@jupiter.uni

Re: [GRASS-user] Removing short lines with one side disconnected???

maybe v.clean input=wtrhhrt output=bewtbt tool=rmdangle thresh=999 could help? Maybe serveral times with different threshs. Achim incanus schrieb: Hi, I'm trying to vectorize a map of streets, but after running r.thin and r.to.vect i get this (the aspect is the same befor r.to.vect): http

Re: [GRASS-user] degree - time conversion

warning: its very modest and dont deal with execptions. (eg. overwrites the files temp_decimal_input.txt and temp_sexagesimal_output.txt) Achim achim schrieb: ...I just need the pure conversion from decimal to sexagesimal(;-)) to convert the output of eg.: v.to.db -p map=li...@achim option=start

Re: [GRASS-user] serious problem with ROUND-OFF

of the one is oriented in one direction, the other in the opposite direction.) Thanks, Achim achim schrieb: Hi Hamish, thanks for your suggestions. It is very useful to get ideas from a different perspective! I am sorry, that I have to write a 'but' again: r.to.vect the area ..I have

Re: [GRASS-user] degree - time conversion

ps- there was an old wish (in trac??) to have a variable set to determine module DMS output format. from gui/tcltk/gis.m/mapcanvas.tcl: # FIXME: make this settable from the UI or use GRASS_DMS_FORMAT enviro var # DMS format: 0 is ddd.dd, 1 is ddd:mm.', 2 is ddd:mm'ss.sss

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