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

). Because I generated the lines from high raster-values (river-network), I could choose the cell with the highest value as a direction for moving node and verts with 'v.edit'. Thanks for patience, especially Hamish, Achim achim schrieb: Hi Hamish, thanks for your suggestions. It is very useful

Re: [GRASS-user] r.in.mat problem

, that solves it: Ok, I would understand that a matlab struct is expected (the same as we can get from r.out.mat). But saving of the struct is not supported in format Matlab 4 (-v4): Greets, Achim ___ grass-user mailing list grass-user@lists.osgeo.org

Re: [GRASS-user] trouble with 'where' statement to select points for labels (in d.vect)

Hi, maybe its the database syntax: try 'not cat=16' Achim Tim Holland schrieb: Hello, I am trying to add labels to a map, where most of the labels get printed beside the shape (in this case, it is a point vector), while one label (point #16) gets printed above the shape to prevent label

[GRASS-user] thresh in v.select?

how can I tell the nodes at line ends to snap to area boundaries. Thank a lot in advance, Achim inline: select_thresh.png___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Bug or feature? v.net.alloc

map=yourtablesmap ##automatically columns=cat INTEGER will be ran and each category of the map gets an entry; default is layer=1, so categories for layer one will be made; the tables name will be yourtablesmap; for layer=2 yourtablesmap_2... Greets, Achim PS: little script to renew categories

Re: [GRASS-user] Bug or feature? v.net.alloc

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

[GRASS-user] negative categories?

: Having raster-values in a column value is not clean, due to the fact, that I have eg. to remove small trapped cells, calc center of gravity and more. Thanks, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo

Re: [GRASS-user] buffer question

at the ends of polylines Cheers, Achim Giovanni Manghi schrieb: Hi all, a friend is asking me if there is a straight way in GRASS to make a buffer like the one represented in this arcgis screenshot http://evora.sigaberto.org/downloads/buffer.jpg the buffer would be calculated along

Re: [GRASS-user] buffer question

... Achim Giovanni Manghi schrieb: On Fri, 2009-10-09 at 19:32 +0200, Achim Kisseler wrote: It seems, that there are line-segments and a buffer is made for each. Do you mean that? yes, I meant that cheers -- Giovanni -- ___ grass-user

Re: [GRASS-user] negative categories?

, because I used three different kinds of objects coded as positive, negative and negative multiplied with 10. Achim Hamish schrieb: Achim wrote: from a raster map I get vector polygons with r.to.vect. As I use the -v flag, I get one category-number for each value. This is what I want. My

[GRASS-user] measure distance

- update old table Is there another, better and faster way? Shouldn't be measuring of distances a common tool? Do I just don't find it? Do I understand v.distance wrong (it just returns the cat of the nearest feature)? Achim ___ grass-user mailing list grass

Re: [GRASS-user] measure distance

table (with stored category-numbers) -adding column length -v.to.db option=length -update original table Achim Achim Kisseler schrieb: Hi grass-users, I am going to measure the distance from one centroid to another for many polygons in a layer in order to update the table with the distance

Re: [GRASS-user] v.to.rast with text column

/html64_user/v.to.rast.html) Try to make unique numbers from your string-column and convert them with column=... and labelcolumn... Achim Dylan Beaudette schrieb: Hi, v.to.rast is letting me know that it does not accept text columns in an attribute table. Has anyone figured out a simple approach

Re: [GRASS-user] r.basins.fill usage

from the threshold of r.watershed. Greets, Achim M S schrieb: Upon first glance, r.basins.fill seems like a great tool to generate subbasins within a watershed. Although I must not be understanding something obvious and essential. If one has to digitize in the internal ridges in a given

Re: [GRASS-user] r.basins.fill usage

The man page seems to imply that internal divided need digitized? Sorry, again I didn't get the point. Can you explain a bit more detailed, please? Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo

[GRASS-user] v.to.rast with empty vector-file

(in an script) Thanks, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] v.to.rast with empty vector-file

Thanks for response, Markus! I just did that a minute ago. But I found out that I don't have to handle that exception in my case: I do a r.patch further on, which works even if one raster-file is missing. So there is no need of an null-map anymore. Thanks again, Achim Markus Metz schrieb

Re: [GRASS-user] Stranges things after importing a shapefile

Hi, I guess the broken areas in the grass topology have dangles inside. (zoom a broken area) use v.clean: -remove small areas and angles -delete dangles Hope it helps, Achim Νίκος Αλεξανδρής schrieb: Felix Schalck wrote: While still working on my huge map of Europe, I've noticed many

[GRASS-user] accumulation map from directions map

Hi, is there a way in GRASS to build an accumulation map from a directions map without a dem map? Best regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] accumulation map from directions map

I could find a tool like this (inside GRASS it does not seem to be possible), I would be very grateful. Best regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] computation in a location based on infos from another location

Hi, why dont you import one map from one location to another? Some information will be lost, that would be the same like r.resamp.stats. http://grass.itc.it/grass64/manuals/html64_user/r.proj.html Achim Patrice Dumas schrieb: Hello, I have 2 locations, one with a lambert projection

Re: [GRASS-user] accumulation map from directions map

Thanks, Jaroslaw for response, there shoud be no problem if you have oryginal DEM I know, but I do NOT have the DEM. Thats the problem. Achim Jarosław Jasiewicz schrieb: Achim Kisseler pisze: Hello again, I am still searching a method to generate a flow accumulation map from a flow

Re: [GRASS-user] accumulation map from directions map

Hi Silvia, thank you very much. I will use h.tca from JGRASS to get the desired. Best, Achim Silvia Franceschi schrieb: Hi Achim, if you are trying to use an open source GIS for hydrological applications consider to take a look at JGrass. There are a lot of geomorphological modules. Best

Re: [GRASS-user] accumulation map from directions map

Dear Markus, I follow Silvias suggestion and use h.tca in JGRASS. BTW: Isn't is possible to integrate the horton-tools into grass? Thanks, Achim Markus Neteler schrieb: 2009/11/19 Achim Kisseler a...@jupiter.uni-freiburg.de: Thanks, Jaroslaw for response, there shoud be no problem if you

Re: [GRASS-user] computation in a location based on infos from another location

Once I was in the same situation. Lambert projection is good for some analyzes, because of the equal size of the grid cells. To get the size of the grid cells, you could convert a N-S row of the rastermap into vector polygons and get the size. Not a very direct way, but it sould work. Achim

Re: [GRASS-user] computation in a location based on infos from another location

: r.mapcalc ns_col=if(col()==1 , row() , null()) Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Piping Commands

Easiest way: don't pipe! Just make a new vectormap from v.extract and buffer that. (I dont think piping is possible here and v.buffer cannot be restricted on a selection) Achim Pablo Carreira schrieb: Hi, I want to do the following: v.extract some lines from a vector and them

[GRASS-user] r.coin (r.report,r.stat) - table

Moin grass-user, I'd like to get the result of r.coin into a table-format to import it in a database. Before I start fighting with sed and awk: Do someone know a faster way? Thanks in advance, Achim PS: Also r.report or r.stat would work, but r.coin most looks like a table it looks like

Re: [GRASS-user] r.coin (r.report,r.stat) - table

Hi all, I wrote an awk-sed-script (for my specific situation) to do it... Afterwards I recognized, that it is now general enough. So I used a combination of r.mapcalc preprocessing and r.stats and combined the result within the database. All the best, Achim Achim Kisseler schrieb: Moin grass

[GRASS-user] bug?: v.to.db wrong area

something wrong? Thanks, Achim PS: already did v.clean, r.mask -r (- should not be have an effect) ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] v.what.rast for lines

Hi Jitu, a way would be to convert the lines to raster (v.to.rast) and calculate the statistics (r.stats). As every line has a unique id, the raster-lines will have. Hope it helps, Achim Jitendra Kumar schrieb: Hi, v.what.rast allows to extract the values from the raster at the vector

Re: [GRASS-user] Help starting grass for first time

Yes, this is quite tricky... Have you seen the literature on eg. http://www.gdf-hannover.de/media.php?id=0lg=en ? Try the spearfish dataset to get an idea, how to begin. Achim Ross Benisch schrieb: Hi, I have downloaded and unzip all the data for the 6.4 version of grass for windows vista

Re: [GRASS-user] bug?: v.to.db wrong area

I think v.dissolve corrupted it. I solved it by making a raster map and then a vector map again. Thanks, Markus and Pablo, Achim Achim Kisseler schrieb: I made the grid with: -%-- v.mkgrid --overwrite map=$1_grid_all grid=$north_south,$east_west position=coor coor=$southwest_corner box

[GRASS-user] COG

Hi all, is it possible in grass to calculate the center of gravity? Given two raster maps: 1) map where areas are defined (can be vector map, too) 2) raster map with gravity values I cannot find something like this in grass. Any suggestion welcome, Achim

[GRASS-user] r.sum (COG)

Is it possible to run r.sum for many areas AT ONCE? r.sum does it for a whole region (or masked area) like: one raster-map with areas, the other with values to sum? Many thanks, Achim Achim Kisseler schrieb: Hi all, is it possible in grass to calculate the center of gravity? Given two

[GRASS-user] center of gravity: solution

[$3]+=$2*$4; d[$3]+=$4} END{for (i in a){print i,a[i]/b[i],c[i]/d[i]}} ' temp_stats temp_stats2 -%-- temp_stats2 looks like cat lon lat 14 49.123 -11.123 15 50.123 -10.123 ... (or whatever) Cheers, Achim ___ grass-user mailing list grass-user

Re: [GRASS-user] center of gravity: solution

the same size. Otherwise a lat-depending weighting could help... I will try it soon. Thanks for your comment, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Difference between r.mapcalc and r.mapcalculator

Easy: just run them to get to know them or read the -%-- DESCRIPTION r.mapcalculator Provides a GUI frontend to r.mapcalc. Up to 5 maps can be combined using simple expressions. Expert mode runs r.mapcalc for more complex expressions. -%-- Achim Gilbert Ferrara schrieb: Greetings all I

Re: [GRASS-user] Obtaining unique nodes from a topology

Hi Will, for lines you can use v.to.db -p map=... option=start -p to print your result option=start to get start points option=end to get end points the result looks like cat|x|y|z ... without -p you can upload the results to the table with: columns=x,y(,z) Hope it helps, Achim William

Re: [GRASS-user] Obtaining unique nodes from a topology

. Achim William Temperley schrieb: Hi Achim Thanks - but what I really want is a list of unique nodes (i.e. where three boundaries meet, there would be one node, with an id) and assign this id to the relevant boundaries. Perhaps that isn't possible. It might be easier to do this in PostGIS

Re: [GRASS-user] GLOBCOVER import and manage

that I'm new at GRASS :) ...keep on. Its worth! Regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] i.sunhours

Hi, I guess doy = day of year lat = latitude While doy in (1-365) And lat in (0-90)? Should be. But why name?? Achim Tim Michelsen schrieb: Hello, what do the inputs for i.sunshine in GRASS7 mean? i.sunhours doy=name lat=name Thanks in advance, Timmie

Re: [GRASS-user] Re: i.sunhours

Ah, so maybe you can have different doy on every raster-cell? Generating a map full of 45-integers would give you valentines day hours of sunshine everywhere on the map..., guess. Achim Tim Michelsen schrieb: I guess doy = day of year I thought the same. But the doc is strange: doy=name

Re: [GRASS-user] cutting issue (again): r.mapcalc vs. r.resample

Did you do: g.copy rast=boundary_raster,MASK or alternatively: r.mask input=boundary_raster -o (-o for overwrite) ? Tim Michelsen schrieb: Hello, I while ago I asked how to cut a small map from a larger one using the region settings as boundary for the small map:

Re: [GRASS-user] cutting issue (again): r.mapcalc vs. r.resample

And more: -%-- ...The category values in the new raster output map layer will be the same as those in the original, except that the resolution and extent of the new raster output map layer will match those of the current geographic region settings (see g.region) -%-- Achim Tim

[GRASS-user] r.mapcalc question

is: syntax error, unexpected NAME, expecting INTEGER or '-' why does dir_x/dir_y does not return an integer here? Using int(dir_x) also does not work. Until now I use a r.mapcalc command with many if, checking the direction of every pixel every time. But this is quite slow. Achim

Re: [GRASS-user] r.mapcalc question

I see, so variables are functions in this case. I've been searching for a while, but I cannot find any tool like grasss r.mapcalc that is a bit more flexible, eg. that can handle recursive tasks. Thanks a lot, Achim Marco Lechner - FOSSGIS e.V. schrieb: Hi Achim, the neighborhood modifier

Re: [GRASS-user] importing rasters

Hi, can you post the hole command you used? Achim ciccp...@libero.it schrieb: Hi everybody, I am trying to import a raster file that is in a location SRTM, into another location LatLong-WGS84 using r.in.gdal I am inside the LatLong-WGS84 location, and once i imported the file i press

[GRASS-user] label

Hi, labeling vectors does not work at my grass 6.5 (kubuntu64bit). All settings in d.vect are accepted, but I see no labels. Building a label map with v.label and loading it, I get an error: map not found. Do I miss a point? Thanks for any help, Achim

Re: [GRASS-user] label

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

[GRASS-user] problem showing many layers

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

Re: [GRASS-user] label

: text labels for line features) --%-- Error Map not found. --%-- right, that is a bug in the wxGUI. filed in the trac'er as #1014 Good to know...what a pitty.. Hamish Achim ___ grass-user mailing list grass-user@lists.osgeo.org http

Re: [GRASS-user] Suggestions for backward modelling of a river system

Hi, that mean, as I understand, that you have to have a paleo DEM. You have to ask the question: On what data basis do I want to reconstruct paleo landscape? Geomorphological changes cannot be reconstructed just with a present day DEM. Achim On 17.03.2010 14:21, Marc Stonestreet wrote

Re: [GRASS-user] Suggestions for backward modelling of a river system

. Achim On 17.03.2010 22:12, Maris Nartiss wrote: One can't turn back time, still I also have been thinking about playing with erosion models in backwards mode. If it's possible to calculate current erosion rate and eroded material ammount, it should be possible to add erroded material to DEM

Re: [GRASS-user] Suggestions for backward modelling of a river system

By the way: it depends on the detail! Pre glacial reconstruction of watersheds from isostatical land-level-changes (ger. Ausgleichsbewegungen) were done for noth america. I think it was last year. Regards, Achim On 17.03.2010 22:52, Achim Kisseler wrote: That erosion processes are highly

Re: [GRASS-user] null to equal zero

r.mapcalc result=if( isnull(map),0,map) On 18.03.2010 09:46, Gary Nobles wrote: Hi I have a raster values are: null 1 3 24 27 etc... I need null = 0 As i want to add rasters together so I want to do null=0 I'm sure this is simple Thank you Gary

Re: [GRASS-user] Re: null to equal zero

=if( isnull(Bones_AVE),0,Bones_AVE) Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] trouble with vector works

. Sometimes I try out QGIS, where importing often works out of the box, but doesnt create the grass stable topology. Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] error with r.terraflow

some more information about the data you are using? And: can you post the commands you are used? (You can find the command line equivalent for the gui in the tab Command Output) Regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http

[GRASS-user] ERROR mapset mapname not found

it be? Thanks in advance for ideas, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] ERROR mapset mapname not found

that? The folder has the same permissions as the others. ?? Achim On 30.03.2010 10:37, Achim Kisseler wrote: Hi all, I have a problem with setting the mapset access for one mapset. All other mapsets can be accessed without problems and from different mapsets. I get: --%-- ERROR mapset mapname not found

Re: [GRASS-user] Newbie... Locations, Projections, Regions, choices? (long)

not the meters-miles thing. Exporting and importing helps, but that's not a real solution. Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] problem with v.out.ogr pgsql

Sometimes GUI output is not like commandline commands have to be. Maybe its just the missing . ? v.out.ogr -c input=poly...@mapset type=area dsn=PG:host=localhost dbname=postgis user=users password=users format=PostgreSQL v.out.ogr -c input=poly...@mapset type=area

Re: [GRASS-user] Newbie... Locations, Projections, Regions, choices? (long)

not the meters-miles thing. Exporting and importing helps, but that's not a real solution. Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] ERROR mapset mapname not found

not in list --%-- BTW: g.mapsets -s shows the tcltc dialog!? Thats ok for me, because it works, but WHY does this happen? Thanks everyone very much for the hints, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman

Re: [GRASS-user] Stream flow direction map

, Stream burning: Thats what I thought about. Further I suggest to weight the DEM with the contour information. A guess how this could be done: v.to.rast contourmap r.fillnulls (to interpolate between contour lines raster map)? r.mapcalc dem*contourrast then r.watershed Best regards, Achim PS: Check

Re: [GRASS-user] r.watershed multi flow direction

Furthermore, in version 6.5 and up r.watershed becomes veryvery fast! Am 21.05.2010 14:05, schrieb M S: I believe that MFD in r.watershed is in versions 6.5 and up. Mark On Fri, May 21, 2010 at 7:27 AM, Kristian Foersterk.foers...@tu-bs.de wrote: Hi, I am using GRASS 6.4.0RC5+39438

[GRASS-user] v.split length=? in latlon

Hi, in v.split: I wonder what units are be used as length in a lat-lon environment? Are these degrees? Why isn't there an option for m, km,..? Thanks in advance, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org

[GRASS-user] export as eps/svg ind grass7?

the layer settings from the shell again ;-) ) Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] v.split length=? in latlon

Am 24.05.2010 23:35, schrieb Markus Neteler: Please open an enhancement report in trac for this. I'll do. Thanks for response, Markus! Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

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

a table update and use 2- for identifying the right items. I hope you like it, Achim Am 10.06.2010 19:40, schrieb Dave Roberts: 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

Re: [GRASS-user] Database question

Hi, try v.db.reconnect.all or v.db.connect for single vector layers. Achim Am 25.10.2010 18:54, schrieb Adam Dershowitz, Ph.D., P.E.: This seems like it must be really easy and I am just missing something I have a project but I accidentally created the sqlite database file in the wrong

Re: [GRASS-user] GRASS in 64-bit Debian Squeeze

Hi Chethan, working on a 64bit system (kubuntu, kernel 2.6.32), GRASS 6.4 seems stable here. On image processing: it'll be a bit faster, but it only makes sense, if you really work a lot with (large) rasters. Regards, Achim Am 30.10.2010 19:45, schrieb Chethan S: Greetings everyone

Re: [GRASS-user] v.buffer: circles around points

Hi Sharon, that sould be the radius, but: due to changing distances on latitude, the circle is not a true circle, as you can see when you reproject the map. The buffer distance is in degree. Hope, everything is correct, regards, Achim Am 03.11.2010 06:44, schrieb Sharon M: Hi, I'm

Re: [GRASS-user] Having some difficulties with v.to.rast

Hi, there are no areas, because there are no centroids. You can add centroids via v.centroids. You always have to choose a use-parameter, otherwise the module does not know, which numbers it has to generate. Achim Am 05.11.2010 14:02, schrieb Luisa Peña: | Number of points: 0

Re: [GRASS-user] Re: Having some difficulties with v.to.rast

=your_column) or use=cat to use the categogy value. You can see the categories with v.category input=... option=report. When you use an attribute, you have to have an table connected with the vector layer. Achim ___ grass-user mailing list grass

Re: [GRASS-user] r.thin ?

Hi, how do you use r.thin? Can you post the complete command? Am 09.11.2010 06:25, schrieb charlie: Hi. I am currently using Grass 6.4 on linux and beginning the the process of vectorizing an old NOAA raster map with r.thin. The map is approximately 12,000 pixels by 8,000 pixels wide.

Re: [GRASS-user] Need some help in converting a contour map to DEM map...

Hi Nikhil, e.g. you can do it with: v.surf.rst (http://grass.osgeo.org/gdp/html_grass64/v.surf.rst.html) Does this help? Achim Am 09.11.2010 12:28, schrieb nikmor: I am trying to import an contour file and trying to come up with an DEM map from it. I tried it my way but end up with wrong

Re: [GRASS-user] Re:Using v.colors in WinGRASS

vector-map - layers - categories - database-connection: thats a bit confusing, but manageble: Am 09.11.2010 13:27, schrieb Luisa Peña: 1- How can I know that this particular vector data does/doesn't have a table? v.db.connect -p map=your_map 2- Since this is a vector, created from a

Re: [GRASS-user] Using v.colors in WinGRASS

Hi, v.db.addcol should be there by default. Maybe there has to be a table connected to the vector map! This can bo done with 'v.db.addtable'. Achim Am 09.11.2010 12:55, schrieb Luisa Peña: v.colors map=teste01_l...@regional column=cat color=aspect I get this error: Creating column

Re: [GRASS-user] Re:Using v.colors in WinGRASS

to improve the manual yet. Regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Using v.colors in WinGRASS

Am 09.11.2010 15:51, schrieb Luisa Peña: Ok I implented what is in 4r44284 1- v.db.connect -p map=teste_09_LULC layers 1 table teste09_LULC in database E:\v3/LOCAL/Regional/dbf through driver dbf with key cat CVector map teste09_LULC is connected by: Vector map should be connected by

Re: [GRASS-user] Re: Need some help in converting a contour map to DEM map...

, the contour raster and the resulting dem. Like Achim said, first you must convert the HEIGHT column to integer (I did this with Openoffice Calc). --%-- here he means the dbf-file or you change the table after imported (using SQL) I think the output you got is correct. But when i try to change

Re: [GRASS-user] raster data output

Did you see: http://grass.fbk.eu/statsgrass/grass_geostats.html ? Am 10.11.2010 16:23, schrieb Steve Wangen: Hello list - There may be a simple solution to my problem, but I'm a bit new to grass and haven't been able to track it down yet, so I was wondering if anyone had suggestions. I'm

Re: [GRASS-user] Exporting Vector data to SHP (v.out.ogr)- takes a lot of time

: 348.770 Number of faces: 0 | | Number of centroids:213.666 Number of kernels:0 | ...that´ll be a HUGE vector file! So it´s normal, that it takes some minutes. Achim ___ grass-user mailing list grass

Re: [GRASS-user] Re: Need some help in converting a contour map to DEM map...

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

[GRASS-user] Re: using v.colors- suggestion of using a sqlite suggestion

of the vector map. If the vector map is not yet linked to any table, new a database link is established based on the MAPSET database settings (see db.connect). --%--). Is that what you are looking for? Regards, Achim ___ grass-user mailing list grass-user

Re: [GRASS-user] Re: Exporting Vector data to SHP (v.out.ogr)- takes a lot of time

Am 15.11.2010 10:47, schrieb Markus Metz: Since the vector to be exported is a converted raster, apparently without further modification, why not exporting the raster? ...I thought the same. What do you want to do? Maybe you can tile the raster and create some or many vector maps? Achim

Re: [GRASS-user] Re: Values from multiple raster - to link together

had decimal numbers or strings instead of numbers? Thanks Gabriele Strings in a raster map? With decimal numbers it works the same way. Or you multiply the map with number of digits and handle it as an integer map (maybe that does not work because of limited bit information per pixel). Achim

Re: [GRASS-user] Re: Values from multiple raster - to link together

Am 15.11.2010 23:36, schrieb Gabriele N.: Hi Achim. Returning to the problem of the three maps in some cases remain the problem (for example for the map C), because some numbers are 2 digits and another with 1 digit. For example, with values A = 12 B = 3323 C = 1 instead of 1233231 I have

Re: [GRASS-user] How to delete deadends?

Hi, I did something similar with a river network. 1. Make a network out of it. 2. Count lines connected to each node. (v.net option=nreport) 3. Check the lines: if a related node has only one connected line, delete the line. Cheers, Achim Am 17.11.2010 13:49, schrieb Patrick_schirmer: Hi

[GRASS-user] Re: using v.colors- suggestion of using a sqlite suggestion

Hello Luisa, (see below) Am 17.11.2010 16:21, schrieb Luisa Peña: Hello achim 1- I converted from raster to vector (r.to.vect) r.to.vect -v input=teste01_l...@regional output=vector01 feature=area Extracting areas... Building topology for vector map vector01... Registering primitives... 833

Re: [GRASS-user] Help with viewer

Well: Q-GIS? Achim Am 25.11.2010 09:03, schrieb Giacomo Piva: Ciao a tutti, Hi all, Does someone know a good GeoTIFF (and other image format) free and multi-platform viewer software? Thank you ___ grass-user mailing list grass-user

Re: [GRASS-user] Memory problems with v.in.ogr

Hi, My guess: 7GB is a lot. 334611 primitives are many, but not that much, but: you got 18 millions vertices! (18459167) That seems a lot. Depending on how tangled your lines are, a potential mass of features can be generated. Just a guess, best, Achim Am 26.11.2010 03:14, schrieb Pierre

Re: [GRASS-user] v.rast.stats over a large vector file

Hi Sab, v.stats _IS_ very slow (for many primitives). Maybe you could analyse the database, where you can calculate the statistics you like. For spatial statistics you can analyse uploaded coordinates of centroids or sizes of area. Hope it helps a bit, Achim Am 26.11.2010 12:32, schrieb

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