[GRASS-user] Smoothing unclosed contour
Hi list, Help me please! I have a set of unclosed contours, which are created from raster cropped by the mask. After smoothing with v.generalize method=boyle look_ahead=5 I have obtained smooth, but duplicated contours. http://www.image-share.com/ipng-1014-170.html http://www.image-share.com/ipng-1014-171.html How can I fix it? -- Best regards, Dmitriy ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Add DB entries to vector line (after v.split)
Message: 5 Date: Mon, 24 Oct 2011 10:34:10 -0700 (PDT) From: wittich vwitt...@gmail.com Subject: [GRASS-user] Re: Add DB entries to vector line (after v.split) To: grass-user@lists.osgeo.org Message-ID: 1319477650371-6925911.p...@n2.nabble.com Content-Type: text/plain; charset=us-ascii thx for your answer. I tried the v.category function but it seams like it doesn't work. And in case that it would work, I would lost the original categories the lines belongs to, don't I? It looks strange. Can you give the output of commands v.info and v.category in=vector opt=report for your segments vector? lines_split_nocats and lines_split_newcats give me the following v.db.select ... cat 1 2 3 It seams like the Option 'del' doesn't work... I tried to delete the table as well, but if I built it again, I've the old categories. But anyway my workaround works. Deletion of the table is unnecessary, because cats in table are depended on categories of the vector objects. So all work is around categories. ps: I'm gonna try your shell-script (v.to.equidist), as soon I'll have installed the GRASS-Addons. Right now it didn't find the grass/gis.h while he compiled it... I hope you're not going to compile a script? :) ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] hydrogeological water balance evaluation
Hi, I want to perform an hydrogeological water balance evaluation in GRASS, could anybody help me? In particular starting from a rainfall map I want to generate a map for runoff, a map for evapotraspiration and a map for groundwater recharge... Thanks, Salvatore___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] d.vect colour wheel not active wxGUI 6.4.2RC1
Hi Martin, python 2.6.5 is what comes from the repositories for my ubuntu 10.04 64 bit. I read elsewhere that there's a fair bit of fixes in 2.6.6, but also saw a few forums/bug reports about upgrade issues in ubuntu so as it's a small issue I'll wait until there's a 'proper' package available for my system. wx is 2.8.10.1 so that is same as what you have. Cheers, Shane. On Thu, 2011-10-20 at 12:18 +0200, Martin Landa wrote: Hi, 2011/10/20 Shane Litherland litherland-f...@bigpond.com: any others find this too? ubuntu 10.04.3 64 bit, wxGUI python 2.6 seems to work for me. Debian GNU/Linux unstable, python 2.6.7, wx 2.8.10.1 Martin ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Joining two polygons
Greetings I have imported a Shapefile with a few polygons (areas) and I want to join two of them. These two have different Sq Meters, Hectares, Acres, Sq miles, same layer (Layer: 1); different category (5 and 7), same Driver, same database, same table, different cat, same key column, same Id, and other fields are different. How can I join them in a single area? Thanks Luisa ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Question on usage of v.to.rast
Greetings I have a vectorial (areas) and I want to convert to raster. In this vector each area is defined by New_ID that is a varchar and I want to create a raster where pixels inside each area must have a value. E.g. Area named A1 must be labelled as 1 and A2 as 2 and B1 as 3 and so on. Is this possible using v.to.rast? Thanks Luisa ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Is it possible to export a Raster to KML
Hello Daniel By reading the r.out.kml manual I have a few questions: 1- KML expects data to be in Latitude-Longitude using the WGS84 datum and EGM96 vertical datum. . My data is in WGS84 UTM 26N. Does this mean that I have to create a new location with this information or it is ok to use a Location in this Geofraphic projection/coordinates system? THanks Kat 2011/10/24 daniel mcinerney daniel.o.mciner...@gmail.com Hi Katrin, Yes, it's possible using the r.out.kml add-on, see [1][2] [1] http://grass.osgeo.org/wiki/GRASS_AddOns#r.out.kml [2] http://osgeo-org.1803224.n2.nabble.com/KML-generator-for-GRASS-6-4-td4548193.html Regards, Daniel. On Mon, Oct 24, 2011 at 1:40 PM, katrin eggert katrineggert1...@gmail.com wrote: Greetings I have a raster mapthat I want to create an overlay in a KML file. Is it possible to do this with GRASS? if not, as anyone as an alternative to use? Thanks Kat ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Lights at night data
Dear Grass users, I was wondering whether you you have any suggestions on where to find geospatialdata on lights at night. I have managed to find some the excellent time series data available on the NOAA website: http://ngdc.noaa.gov/dmsp/downloadV4composites.html The dataset is available at a resolution of 1km, but I would be interested in something at a higher resolution (possibly 100m) for the Europe/ the UK. I would interested in either time series data or shapshots taken over a certain period of time. Any help would be greatly appreciated! Best wishes, Marco Girardello ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] lion osx
Hi Salvatore, With William's help, I've been doing some test of GRASS on Lion. Here is what I've found out. 1. GRASS compiled under Snow Leopard runs find on Lion. I've not yet run into any problems, including with the TclTk aspects. 2. GRASS will compile under Lion if you force it to 32 bits, Python 2.6, and wxPython 2.8. This version will run fine on Lion. 3. GRASS 7 compiled under Lion as in #2 seems to run fine under Snow Leopard 4. GRASS 6.4.2 compiled under Lion as in #2 still wants to use Python 2.7 and the GUI won't launch. However, if you force it to start up in 32 bits, it will run fine. Michael __ C. Michael Barton Director, Center for Social Dynamics Complexity Professor of Anthropology, School of Human Evolution Social Change Arizona State University Tempe, AZ 85287-2402 USA voice: 480-965-6262 (SHESC), 480-727-9746 (CSDC) fax: 480-965-7671(SHESC), 480-727-0709 (CSDC) www:http://csdc.asu.edu, http://shesc.asu.edu http://www.public.asu.edu/~cmbarton On Oct 25, 2011, at 3:18 AM, grass-user-requ...@lists.osgeo.org wrote: Date: Mon, 24 Oct 2011 16:37:19 -0500 From: William Kyngesburye wokl...@kyngchaos.com Subject: Re: [GRASS-user] lion osx To: Salvatore Mellino salvatore.mell...@gmail.com Cc: grass-user@lists.osgeo.org Message-ID: 5415285e-e33d-439c-95e6-e9ffa0ac7...@kyngchaos.com Content-Type: text/plain; charset=us-ascii Not anything specific. The Snow Leopard package should work fine, mostly. The main difference and problem is Python and the wxPython GUI. The Snow package uses Python 2.6 and a Carbon-based wxPython. While it seems to work on Lion, it's possible there are hidden problems due to Carbon supposedly being stripped out of Lion (I could be wrong on that). Lion needs a Cocoa-based wxPython, but the GUI doesn't run at all yet. So it's a work in progress. On Oct 24, 2011, at 4:27 PM, Salvatore Mellino wrote: Hi, is there a specific release of GRASS for LION OS (6.4.2 or 6.5)? Thanks. Salvatore ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user - William Kyngesburye kyngchaos*at*kyngchaos*dot*com http://www.kyngchaos.com/ History is an illusion caused by the passage of time, and time is an illusion caused by the passage of history. - Hitchhiker's Guide to the Galaxy ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Add DB entries to vector line (after v.split)
Alexander Muriy wrote: It looks strange. Can you give the output of commands v.info and v.category in=vector opt=report for your segments vector? v.info lines_split ++ | Layer: lines_split | Map format: native | | Type of Map: vector (level: 2) | Number of points: 0 Number of areas: 0 | Number of lines:598 Number of islands:0 | Number of boundaries: 0 Number of faces: 0 | Number of centroids:0 Number of kernels:0 | | Map is 3D: No | Number of dblinks: 1 | | Digitization threshold: 0 | Comments: ++ v.category in=lines_split opt=report Layer/table: 1/lines_split type countminmax point 0 0 0 line 598 1 3 boundary 0 0 0 centroid 0 0 0 area 0 0 0 all 598 1 3 Alexander Muriy wrote: Deletion of the table is unnecessary, because cats in table are depended on categories of the vector objects. So all work is around categories. Thx for the explanation. Alexander Muriy wrote: ps: I'm gonna try your shell-script (v.to.equidist), as soon I'll have installed the GRASS-Addons. Right now it didn't find the grass/gis.h while he compiled it... I hope you're not going to compile a script? :) Nope I try to install with the GRASS-Addons using g.extension extension=r.fuzzy.system. But this command try to compile something... whatever... and can't find grass/gis.h while it doing this, even if it exist under /usr/lib/grass64/include/grass/gis.h. Maybe the compiling process looks for the 32-lib. I didn't figure it out though. -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Add-DB-entries-to-vector-line-after-v-split-tp6922423p6930154.html Sent from the Grass - Users mailing list archive at Nabble.com. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Question on usage of v.to.rast
On 10/25/2011 05:31 PM, Luisa Peña wrote: Greetings I have a vectorial (areas) and I want to convert to raster. In this vector each area is defined by New_ID that is a varchar and I want to create a raster where pixels inside each area must have a value. E.g. Area named A1 must be labelled as 1 and A2 as 2 and B1 as 3 and so on. Is this possible using v.to.rast? Yes, but you'll need a column in the vector attribute table with numeric values. THen run: v.to.rast input_vect out=raster output use=attr col=numeric attibute column If your attributes are in sqlite (not dbf) then I'm sure there are some SQL string functions you could use to get the integer values 1,2,3... out of the labels A1,B1,... Thanks Luisa This mail was received via Mail-SeCure System. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user This mail was received via Mail-SeCure System. -- Micha Silver Arava Development Co. +972-52-3665918 http://surfaces.co.il ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Grass Fedora 15 64 bits
Hello List; Is there a way (other than compiling) to get *GRASS 6.4.2RC1* on Fedora 15 64bits? If not, is there a step by step tutorial for compiling it. -- ¡Saludos! / Greetings! Juan José Del Toro M. jdeltoro1...@gmail.com Guadalajara, Jalisco MEXICO ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Grass Fedora 15 64 bits
2011/10/25 Juan Jose Del Toro jdeltoro1...@gmail.com: If not, is there a step by step tutorial for compiling it. http://grass.osgeo.org/wiki/Compile_and_Install Martin -- Martin Landa landa.martin gmail.com * http://geo.fsv.cvut.cz/~landa ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] v.generalize issue
Hello GRASS Community, I'm having a problem that I'm hoping you can help me find the source of. I think that either A) I am trying to use the v.generalize tool incorrectly, B) that my data has some sort of topological problem which I'm unaware of, or C) that there is a bug in v.generalize. The simplest way to describe what's happening is that I am consistently unable to generalize a large group of contiguous polygons (African states most recently) without losing a large number of polygons from my data. I have tried a variety of different things, all without success, and now I'd like to ask if someone would be willing to verify that what I'm seeing isn't a problem of my own creation. I've posted my data files at www.macrogis.net/africahttps://owa.postoffice.net/owa/redir.aspx?C=f8a443413bdc4a4a9a4edb8bbe3f24bfURL=http%3a%2f%2fwww.macrogis.net%2fafrica, along with a before-and-after image of the specific problem I've encountered. I'm using GRASS v 6.4.1 which I downloaded from the main website 2 months ago. The commands I have used are the following: v.in.ogr dsn=africa_clean.shp v.clean tool=rmarea type=boundary thresh=2 in=africa_clean out=africa_clip v.generalize type=boundary method=lang threshold=.015 look_ahead=11 in=africa_clip out=africa_general Note: I know that I am removing small polygons with the v.clean operation. My concern is with the many missing contiguous polygons in the main part of the continent. Thanks in advance for any help you can provide, Roger -- ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Grass Fedora 15 64 bits
On Tue, Oct 25, 2011 at 10:57 PM, Juan Jose Del Toro jdeltoro1...@gmail.com wrote: Hello List; Is there a way (other than compiling) to get GRASS 6.4.2RC1 on Fedora 15 64bits? You may want to ask on http://lists.osgeo.org/mailman/listinfo/el el -- Free GIS software on Enterprise Linux AFAIK they are packaging also for Fedora. Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
