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- If you don't dispose of a fuel map, you can try to define the fuel by your expert judgement, with the help of this [http://www ...10h). The quantities moisture_1h and moisture_100h, respectively referring to 1 hour and 100 hours, are expressed likewise. ...5 KB (730 words) - 14:33, 25 March 2021
- ...ons. Most IRC servers do not require users to log in, but a user will have to set a nickname before being connected. ...annel ([irc://irc.libera.chat/grass #grass] on irc.libera.chat), feel free to join. There are many other geo related channels such as [irc://irc.libera.c ...5 KB (810 words) - 21:10, 1 August 2022
- == '''Q:''' How to create an elevation profile from intersecting shapefiles == '''A:''' You want to create an elevation profile for a walking track described in one file, when ...5 KB (842 words) - 01:59, 11 February 2016
- ...e preferences. You can also open several channels at time. It's convenient to automate the identification. -> Auto-url [someone please verify this, probably it's sufficient to type ...5 KB (788 words) - 23:12, 6 February 2010
- You have to have in your library the packages "gstat" and "spgrass6", you can download In GRASS we have a vector file named "giaciture_cat_clean3" and we want to do a prediction on this data... ...3 KB (506 words) - 09:49, 9 August 2013
Page text matches
- The purpose of working groups is to coordinate the GRASS GIS community activities such as software development, == How to join == ...905 bytes (124 words) - 18:19, 10 October 2023
- '''Q:''' How to add points (centroids) to Polygons? '''A:''' ... quite easy to do in GRASS 6: [http://grass.itc.it/grass63/manuals/html63_user/v.category. ...395 bytes (67 words) - 17:59, 31 December 2013
- ...t lines into boundaries with {{cmd|v.type}}, but now, how to add centroids to turn them into areas? The lines look as follows. In {{cmd|v.digit}}: '''A:''' Run {{cmd|v.centroids}} to add centroid(s). ...407 bytes (69 words) - 16:59, 29 December 2011
- ...eferably by converting Shapely polygon to GRASS GIS vector format in order to use various tools within GRASS GIS? [[Category:Linking to other languages]] ...377 bytes (50 words) - 20:44, 8 November 2019
- '''Q:''' How to add multiple vertices to a line? ...243 bytes (41 words) - 20:25, 19 June 2012
- ...form aspect counter-clock wise angles (such as produced by r.slope.aspect) to azimuth ? ...179 bytes (27 words) - 11:19, 9 July 2015
- '''Q''': In a site map, how to select all the points that are at the edge? Use v.out.region to create a box (set size with g.region) or use v.hull. ...435 bytes (77 words) - 09:45, 5 February 2013
- == Procedure to request Community Sprint funding == # Open this page in editing mode to '''copy''' the template part below into a new Wiki "discussion" page using ...2 KB (327 words) - 23:52, 19 February 2016
- This page shows how to use {{wikipedia|Vagrant_(software)|Vagrant}} together with GRASS GIS. The G ''Note:'' '$' shows commands to be entered from local machine, '#' from vagrant's virtual machine ...3 KB (376 words) - 17:36, 16 February 2016
- ...workflow below describes how coordinates can be extracted from points and how they can be written into the attribute table. v.in.ascii -z input=/path/to/points_map.csv output=points format=point skip=0 x=1 y=2 z=3 cat=0 fs=, ...1 KB (220 words) - 14:10, 5 August 2016
- '''Q:''' How can I fill holes in a raster map with categorical data? ...data use {{cmd|r.grow.distance}} which assigns the nearest non-NULL value to a NULL cell: ...252 bytes (44 words) - 00:08, 7 December 2011
- '''Q:''' How to create a vector buffer around polygons/areas/points in GRASS >= 5.7: ...259 bytes (40 words) - 18:20, 22 July 2016
- '''Q:''' How to dissolve vector polygons (or remove tile boundaries of adjacent maps) ...ORINE Landcover SHAPE files) have to be removed, an extra step is required to first remove duplicated boundaries: ...545 bytes (83 words) - 21:57, 10 April 2013
- '''Q:''' How do I import very large data into GRASS GIS? I.e. from [http://www.gadm.org/ ...d to create GADM v2. You need to perform additional cleaning with snapping to a very small threshold, i.e. ...781 bytes (132 words) - 20:05, 18 September 2016
- '''Q:''' How to digitize on a comfortable way isolines from a scanned map?<br /> # To get the lines in a vector map have look at: [http://grass.osgeo.org/wiki/Tr ...445 bytes (78 words) - 18:06, 31 December 2013
- ...ist system "mailman" is very strict with subscriptions to prevent spammers to flood the mailing lists. Exampl:e If you post to a GRASS list and receive a message similar to: ...1 KB (190 words) - 14:01, 10 November 2012
- ...es contains a growing list of Frequently Asked Questions (FAQs). Feel free to add text, "Edit" button for that. # In a site map, how to select all the points that are at the edge? - [[Points Edge Selection]] ...5 KB (763 words) - 12:17, 2 October 2016
- ''How do I set the {{wikipedia|map_scale}} in the Display Window?'' ...ur monitor would have to be known as Scale is the ratio of distance on map to distance on ground. ...1 KB (252 words) - 12:35, 1 March 2010
- The GRASS GIS project offers a mentoring program to help students, researchers, and software developers integrate GRASS GIS int ''The mentors hope to grow the GRASS community, so if you are new to GRASS GIS or open-source development in general, this program is for you.'' ...3 KB (437 words) - 15:23, 11 December 2023
- To quote from their website: * easy to install ...2 KB (366 words) - 10:16, 5 June 2020
- MapServer needs a mapfile containing the information, how to create the maps. Examples of these can be found, so here you'll find GRASS A short example of a layer definition to access a GRASS raster: ...3 KB (418 words) - 20:42, 15 August 2016
- * You can contact GRASS users in [[How to participate in IRC communication|IRC]] * [[How the Open Source software development model works]] ...5 KB (653 words) - 15:19, 24 August 2015
- '''Q:''' How to add a new point to the vector map at given position? * Add new point to the vector map <tt>(x=100, y=100, layer=1, category=1)</tt> with {{cmd|v.ed ...932 bytes (151 words) - 17:58, 31 December 2013
- ...way to automate the process below. It uses the {{Cmd|m.nviz.image}} module to render the two viewpoints, then composes the 3D image into a PNG file. == How to create stereo anaglyphs manually with NVIZ == ...4 KB (702 words) - 21:03, 7 July 2013
- '''Q:''' How can I rename many maps in the current mapset in a convenient way (mass rena '''A:''' Use the Addon {{AddonCmd|g.rename.many}} in order to rename maps in the current mapset. Old and new names are read from a text f ...385 bytes (67 words) - 23:35, 15 August 2015
- ...the other shows you how to use the GRASS wxGUI. This reader is redirected to the Quick wxGUI tutorial for more information on this topic. ...ght find the CLI a quick alternative to display your vector data. You need to start a display monitor as follows: ...3 KB (445 words) - 13:05, 8 August 2013
- ...page describes how a user can go about working with TIN data if they want to anyway (for whatever reason). See the [[Contour lines to DEM]] wiki page for a detailed comparison of these modules and a TIN. ...5 KB (864 words) - 18:04, 31 December 2013
- '''Q:''' How to extract the entire network upstream a given point on the river network? ...h to the column for line length ({{cmd|v.to.db}}). Set the blocking column to -1. ...727 bytes (128 words) - 10:44, 5 November 2014
- ...s intended for GRASS GIS users who want to migrate from a previous release to the new GRASS Version. If you are a beginner, please also consider addition ...e the examples described here do not work properly, you are kindly invited to send us further examples and/or code bugfixes/enhancements. Enjoy the WIKI! ...6 KB (852 words) - 08:29, 30 July 2013
- It provides more than 450 core modules, plus hundreds of Add-ons, to graphical interface to work as in any other desktop software. However, ...2 KB (312 words) - 10:52, 12 June 2017
- ...r network) which I want to clean and break the lines at intersections. How to manage the categories? Now add new categories to a new layer, e.g. with ...1,016 bytes (164 words) - 09:24, 3 October 2016
- See [[Promotional material]] for up-to-date information. * Large use of screenshots / examples (''does anybody know how to create screenshots with high resolution?'') ...790 bytes (103 words) - 20:02, 2 September 2018
- A GRASS module crashed and left the sqlite database locked. How can I unlock the sqlite database? To kill the process: ...529 bytes (72 words) - 09:35, 23 April 2015
- '''Q:''' How to remove small vector lines? I want only delete spurious lines. To delete isolated lines which are not connected to the main "network", use: ...2 KB (256 words) - 10:52, 5 November 2014
- '''Q:''' How to generate a grid where the cell numbers are sequential? #to visualise the category numbers in the grid ...775 bytes (136 words) - 10:45, 19 September 2012
- ...Code-In] 2018. Here we will list task ideas and other information related to the GRASS GCI projects as well as the contest results and contributions by ...ing organizations lend a helping hand as participants learn what it’s like to work on an open source project. For more details, see [https://developers.g ...4 KB (609 words) - 15:44, 16 September 2018
- '''Q:''' How can I export only parts of a vector map, say, the part of the current regio '''A:''' You need to cut the map first (only raster maps are region sensitive) with {{cmd|v.sele ...495 bytes (83 words) - 00:37, 7 December 2011
- In a similar way to the vector data management, the import and export of raster data is underpi ...ne (input represents the full or relative path to the raster file you want to import; output is its raster name in GRASS). The same can be achieved usin ...1 KB (235 words) - 09:47, 9 August 2013
- ...ons. Most IRC servers do not require users to log in, but a user will have to set a nickname before being connected. ...annel ([irc://irc.libera.chat/grass #grass] on irc.libera.chat), feel free to join. There are many other geo related channels such as [irc://irc.libera.c ...5 KB (810 words) - 21:10, 1 August 2022
- ...itecnico di Milano, Polo Regionale di Como, 30 May 2006 (6h). Introduction to GRASS 6 and QGIS ([http://mpa.itc.it/markus/como2006/index.html Slides PDF/ * Tutorials by Yann Chemin: One document of small tutorials to get started in GRASS GIS and GRASS integration with QGIS. ...4 KB (564 words) - 07:51, 27 June 2010
- '''Q:''' How can I count the number of points which fall into polygons? Carry over an attribute from the polygons to the points, then count the number of equal attributes by SQL grouping. ...3 KB (441 words) - 08:07, 19 April 2015
- ...many versions of GRASS spanning the last 15 years; relevant content needs to be moved into this Wiki [''please help!''] ...How to interpolate point value using kriging method with R and GRASS 6|how to interpolate point value using kriging method with R and GRASS]]. ...4 KB (485 words) - 14:31, 2 December 2023
- ...e the average map values by spatial unit (grid)? For example, I would like to calculate the average slope by square kilometer for a given area. ...ea fill = none, or only display boundary features, colored red or so) just to verify where it will be and what it will look like. ...1 KB (211 words) - 15:49, 26 August 2010
- - '''Applies to GRASS Versions 5 and 6 (pre 6.4)''' - ...to the GIS manager window in a similar fashion. Any tips and hints on how to add on an extra menu item in the gis.m gis manager?'' ...1 KB (211 words) - 07:56, 10 February 2013
- ...resolution (quadrat count) and write the results to a raster map (in order to perform r.mapcalc on these observed frequencies). ...with {{cmd|g.region}}) and write a raster map allocating the number count to the cell. ...1 KB (230 words) - 18:06, 31 December 2013
- Connecting to this WMTS service requires a preliminary registration. See [http://api.ign. This AddOn was written as a '''transitory solution''' to fetch french data within GRASS 6.4 where [http://grass.osgeo.org/grass64/ma ...4 KB (630 words) - 07:49, 15 February 2013
- ...rovide powerful binary package management. You can choose whether you want to download precompiled binary packages or build everything from source. For further information to install it and how to use it, see the [http://finkproject.org Fink Project Website]. ...2 KB (247 words) - 00:30, 1 May 2017
- '''Q:''' How do I install winGRASS? '''Q:''' I have problems to launch winGRASS! ...842 bytes (114 words) - 21:40, 17 March 2012
- Open-source ecosystem working group is established to foster relations with other software communities and collaborate with them * provide guidance to communities how to best integrate GRASS GIS ...2 KB (235 words) - 18:19, 17 October 2023
- == Shared access to a GRASS database == Here are some suggestions on how multiple people at a site can collaborate on one GRASS database, sharing da ...2 KB (353 words) - 15:42, 3 April 2017
- ...Carolina State University campus. This is a page to organize meetings and to record what was done or discussed during the meetings. See [[GRASS GIS Rale ...//lists.osgeo.org/mailman/listinfo/southeast-us Southeast-US mailing list] to get updates. ...4 KB (516 words) - 09:23, 20 December 2019
- '''Q:''' How can I drop a column in sqlite-databases? Old '''A:''' It is not possible to drop columns within sqlite using the syntax ALTER TABLE DROP COLUMN [1]. Ho ...1 KB (209 words) - 21:35, 30 December 2011
- * 당신은 GRASS 사용자들과 다음 사이트[[How to participate in IRC communication|IRC]]에서 만날 수 있습니다. * [[How the Open Source software development model works]] ...5 KB (566 words) - 14:58, 24 May 2013
- ===How the course will be structured=== ...t-come basis. We are asking for a $250 USD fee by each non-NWS participant to be used as a modest honorarium for Michael Barton and Helena Mitasova. ...4 KB (578 words) - 08:56, 11 February 2011
- '''Q:''' How to edit GRASS Attributes? Two categories (with slash in the middle) can be assigned to a single vector feature in a single layer. This can happen e.g. when import ...1 KB (165 words) - 21:40, 24 March 2014
- = How make a map? = First I define a variable to store the name of the output because when I want change it I modify only th ...6 KB (924 words) - 07:19, 29 August 2013
- '''Q:''' How can I patch several vector map together, i.e. merge them? Especially SHAPE '''A 1:''' To patch vector maps in GRASS: ...2 KB (316 words) - 11:25, 22 December 2014
- == How the Open Source software development model works == Emphasis is placed on interoperability and unlimited access to data as well as software flexibility and evolution rate (both added feature ...2 KB (242 words) - 11:56, 6 August 2013
- ...cmd|v.in.dxf}}. DXF usually contains more layers. You can convert DXF file to ''multi-layer'' [[GRASS Vector Layers|GRASS vector map]] or import selected == Convert DXF layers to multi-layer GRASS vector map == ...2 KB (336 words) - 10:28, 4 December 2018
- ...42 ). If a new VARCHAR column is added to layer 2 by {{cmd|v.db.addcol}}, how can the names from layer 1 be copied into it?'' v.to.db regions layer=2 option=query col=name qlayer=1 qcolumn=name ...1 KB (179 words) - 09:50, 23 April 2015
- Jan 23, 2020, we switched from trac to GitHub also for the bug tracking (now called "issues"). ...t nodody has volunteered yet. If you are the one, please contact the admin to arrange it. ...6 KB (920 words) - 21:23, 5 April 2020
- ====How-to mini untuk melakukan interpolasi kriging menggunakan GRASS dan R==== [[How to interpolate point value using kriging method with R and GRASS 6 | Bagaimana ...5 KB (661 words) - 11:39, 4 December 2011
- ...Code-In] 2017. Here we will list task ideas and other information related to the GRASS GCI projects. ...ing organizations lend a helping hand as participants learn what it’s like to work on an open source project. For more details, see [https://developers.g ...6 KB (892 words) - 16:37, 18 January 2018
- * [[How to interpolate point value using kriging method with R and GRASS 6]] ...1 KB (173 words) - 08:02, 26 August 2009
- ...several categories, several areas can have the same category. If you want to get the coverage for a particular Landsat scene, just select the path and r '''Q:''' How can I determine the number of overlapping features per location after impor ...2 KB (272 words) - 10:28, 4 December 2018
- ...l tested algorithms provided by GRASS GIS. The name "SEXTANTE" was changed to "Processing" in QGIS 2. ...ADE bundled with SEXTANTE. Both teams (SEXTANTE and gvSIG CE) have decided to unite forces and will be, from now on, sharing their development policies a ...10 KB (1,551 words) - 13:36, 24 January 2017
- This page contains references to user contributions and add-ons (the original GRASS GIS software can be down ...ger]] (''Settings -> Addon extensions -> Install extensions from addons'') to install Addons. ...6 KB (939 words) - 10:59, 7 March 2024
- In QtCreator go to and fill Project name. Choose something which allows you to recognize these files easily, e.g. not just <tt>grass</tt>. ...5 KB (827 words) - 15:02, 23 May 2017
- The Ruby language can be easily used to write scripts that execute GRASS commands with this gem: ...e how to write a Ruby program that executes GRASS commands. You won't need to start GRASS explicitly, ...4 KB (638 words) - 19:41, 26 July 2015
- A group of people contributing or interested in contributing to GRASS GIS met on December 19, 2015 at the Hunt library, which is a quite in * How tickets work, example: [https://trac.osgeo.org/grass/ticket/2750 #2750] ...5 KB (707 words) - 09:23, 20 December 2019
- See also [[Using Eclipse to develop GRASS Python programs]] ...opment. While CVS-support is built in, additional plugins have to included to allow for access of SVN repositories. ...5 KB (528 words) - 12:27, 31 August 2015
- WARNING: Unable to create table <hydro_pointEvent> How to fix that? Check out for ...1 KB (222 words) - 10:11, 2 February 2017
- ...model!? It introduces in fact many problems. Nontopological GIS is easier to use and all popular proprietary GIS desktops like ArcView or Mapinfo use no ...'': Everything is going RDBMS. The only modern and good enough solution is to store all data in relational database. Why do you spend all that time worki ...4 KB (735 words) - 10:17, 4 December 2018
- * Anda dapat melakukan komunikasi langsung dengan pengguna GRASS via [[How to participate in IRC communication|IRC]] * [http://trac.osgeo.org/grass/wiki/HowToTestGrass6 How-To Test GRASS6] - mudah untuk diterapkan dengan GRASS 6.3 dan QGIS ...5 KB (683 words) - 22:02, 13 September 2009
- ''Should be moved to Trac Wiki as a historical document; better name is need.'' - '''Applies to GRASS Version 6 (but only pre 6.4)''' - ...3 KB (398 words) - 02:35, 29 January 2014
- ...have a raster with a series of patches (contiguous areas with same value). How do I isolate the largest patch? '''A:''' You can use {{cmd|r.clump}} to to recategorize the raster map pixels by grouping cells that form physically d ...2 KB (335 words) - 23:11, 2 January 2014
- === Migration of GForge/RT bugtracker to OSGeo Trac === * Date: end of Nov 2007 (needs to be done in 2007) ...10 KB (1,494 words) - 10:09, 30 March 2019
- .../oceanservice.noaa.gov/education/kits/geodesy/welcome.html An introduction to Geodesy] from NOAA <!-- retained the old link as new one seems to lead to a dead server --> ...9 KB (1,348 words) - 16:19, 30 December 2019
- GRASS GIS offers a limited number of student grants for projects related to GRASS GIS ([https://grass.osgeo.org/news/2023_11_09_student_grants_announce == Why to apply == ...7 KB (1,034 words) - 21:29, 24 January 2024
- ...ines fit a surface to a series of points by minimizing the energy it takes to "bend" the surface. You can think of it as stretching a rubber sheet betwee Using this method you can create raster surfaces which, as compared to a simple rasterization method like a sampled TIN, better match the true top ...6 KB (896 words) - 05:50, 30 June 2017
- Emphasis is placed on interoperability and unlimited access to data as well as software flexibility and evolution rate - both added featur * [[Gis_Concepts#How_the_Open_Source_software_development_model_works|How the Open Source software development model works]] ...5 KB (657 words) - 17:59, 12 February 2024
- ...omposes the 3D image into a single PNG file. In time it should be possible to port this functionality into [[NVIZ]] itself. * [http://www.jrsdesign.net/cross_parallel_viewing.html Here is a nice how-to-view article] ...3 KB (366 words) - 10:10, 9 August 2020
- * Możesz skontaktować się z użytkownikami GRASS przez [[How to participate in IRC communication|IRC]] * [[How the Open Source software development model works]] ...5 KB (690 words) - 18:31, 22 August 2016
- == GRASS GIS 7.0 development visualization from 1999 to 2015 with Gource == * Nov 09, 2004: Source code restructuring to get a better directory layout (all other developers waiting...) ...6 KB (741 words) - 16:14, 23 December 2015
- Geoinformatics 2006 is to be held in Lausanne, Switzerland, over September 12-15th 2006 and we offer For each proposal we'll have to write an abstract and submit it ...8 KB (1,140 words) - 15:00, 29 February 2016
- * To save processing later you might want to mask out obvious text and other noise in a paint program first. ...option of using GRASS's r.mapcalc module and other raster analysis modules to simplify the image after import. ''(see below)'' ...5 KB (790 words) - 00:35, 7 December 2011
- This page describes how to well use the projections defined by the French company [http://en.wikipedia ...ncerning conversions between the French projection systems. We will use it to show the problem previously introduced. ...5 KB (851 words) - 11:55, 3 January 2011
- * Google Summer of Code 2024: We got 4 students! Thanks to mentors! *** People contribute to project's OC (to the sprint through the project). ...3 KB (411 words) - 10:08, 12 May 2024
- '''A:''' For import, try to find a '''snapping threshold''' for {{cmd|v.in.ogr}} that produces an error ...areas (Landsat pixel size is about 90 square meters). The threshold needs to be empirically determined. ...6 KB (1,018 words) - 13:02, 5 April 2020
- .../cran.r-project.org/package=rgrass rgrass] ''R'' package. The possibility to directly interact with R strongly increases the statistical and geospatial ...objects, i.e., SpatRaster and SpatVector objects that can then be coerced to other types of R spatial objects. ...9 KB (1,403 words) - 19:58, 19 April 2023
- ...earn how to use GRASS GIS with Python to optimize their workflows, and how to leverage the integration of R with GRASS GIS for statistical analysis. ...landscapes for immersive virtual environments. Participants will learn how to prepare data, build physical models and develop workflows so that they can ...10 KB (1,475 words) - 03:35, 9 May 2017
- This tutorial describes how to Create GRASS location using SPEARFISH data to be able create new locations ...5 KB (865 words) - 19:14, 1 February 2013
- === Welcome to the GRASS GIS Users Wiki === ...community provided add-ons programs. In case you wish edit here, you need to register and login first (see top right link). ...5 KB (746 words) - 09:18, 24 April 2024
- ''This page shows extended examples how to run GRASS modules in the winGRASS windows console'' In order to ease the workflow of analysis, several GRASS modules can be invoked at once ...2 KB (403 words) - 19:44, 23 December 2018
- Short introduction how to compile the vtk-grass-bridge: [[Category:Linking to other languages]] ...2 KB (304 words) - 21:36, 30 December 2011
- * How to create an own screencast? See [[Movies#Q:_How_to_create_a_screencast_.28for * Tutorials by Yann Chemin: One document of small tutorials to get started in GRASS GIS and GRASS integration with QGIS. ...4 KB (496 words) - 09:16, 22 October 2017
- * Puteți contacta utilizatorii GRASS în [[How to participate in IRC communication|IRC]] * [[How the Open Source software development model works|Cum lucrează modelul de de ...5 KB (745 words) - 13:30, 6 January 2010
- * Можете контактирати кориснике GRASS-а на [[How to participate in IRC communication|IRC]]-у * [[How the Open Source software development model works|Како функционише развој со ...7 KB (401 words) - 21:46, 13 September 2009
- The following examples demonstrate how basic vector data processing operations, such as overlay, union and clippin ...tor Maps --> Overlay Vector Maps [v.overlay]''. The default tab allows you to select the two vector files (ainput and binput): ...2 KB (320 words) - 09:45, 9 August 2013