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- == GRASS GIS topology management == === Topology general characteristics === ...4 KB (594 words) - 07:36, 10 October 2023
- ...What would be the 'recommended' way of dealing with the 'errors' found in vector data which were created with zero topological restrictions (and saved as .s A hint for snapping: {{cmd|v.in.ogr}} suggest for vector data with topological errors a range of <nowiki>[1e-08, 1]</nowiki> for sui ...6 KB (1,018 words) - 13:02, 5 April 2020
- ...rass70/manuals/vectorintro.html#vector-model-and-topology Vector model and topology] * [[Vector topology cleaning]] ...4 KB (664 words) - 15:13, 22 July 2016
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- == GRASS GIS topology management == === Topology general characteristics === ...4 KB (594 words) - 07:36, 10 October 2023
- '''Q:''' How can I patch several vector map together, i.e. merge them? Especially SHAPE files? '''A 1:''' To patch vector maps in GRASS: ...2 KB (316 words) - 11:25, 22 December 2014
- ...vector data (from GRASS GIS 6) in GRASS GIS 7 the user has to rebuild the topology. Additionally it is recommended to switch the database backend from DBF fil == Convert automatically all GRASS 6 vector maps to GRASS 7 (including attribute transfer from DBF to SQLite) == ...2 KB (324 words) - 10:41, 4 December 2018
- * Intro to [[Vector Database Management|vector data model]] (with drawing) * [[Vector topology cleaning]] ...2 KB (272 words) - 10:28, 4 December 2018
- '''Vector:''' You need to rebuild the topology with {{cmd|v.support|version=54}}. ...ve been deprecated and are handled as vector points. Convert sites maps to vector maps with [https://old.grass.osgeo.org/grass64/manuals/v.in.sites.html v.in ...2 KB (397 words) - 21:14, 24 June 2021
- '''Q:''' How to show vector map labels * After Importing the data, if a vector file run v.support option=build. ...863 bytes (143 words) - 07:49, 12 December 2006
- ...GIS 6. To be able to use imported data in GRASS GIS 6, just rebuild vector topology (e.g., {{cmd|v.build}}). [[Category: Vector]] ...781 bytes (132 words) - 20:05, 18 September 2016
- ...he Spearfish sample dataset in GRASS 6.4 to reduce the node coordinates of vector polygons (''areas'') to three decimal digit precision: ...preserved, but it is worth paying close attention to the verification and topology-building messages upon import. (in case of errors make sure that the origin ...1 KB (223 words) - 22:45, 23 April 2018
- * {{Cmd|v.out.vtk}} - export vector maps for VTK ...RASSBrige provides a VTK/C++ interface to most of the GRASS GIS raster and vector C library functions. Its using an intuitive class structure to hide the com ...3 KB (490 words) - 00:37, 19 June 2013
- =Vector Maps= ==Vector Geometries== ...4 KB (620 words) - 15:14, 17 July 2012
- == Option to reduce memory consumption for vector topology == ...n cause problems such as out-of-memory errors or freezing the machine if a vector module uses up all system memory and goes into swap space. ...2 KB (348 words) - 14:54, 8 May 2017
- * Draw a 1 km x 1 km grid ({{cmd|d.grid}}), and overlay the {{cmd|v.mkgrid}} vector map (area fill = none, or only display boundary features, colored red or so * Generate a region that defines the required grid topology: extent, cell size, origin ...1 KB (211 words) - 15:49, 26 August 2010
- * [[#Link to GRASS|link]] PostGIS data as GRASS vector maps * {{cmd|vectorintro|desc=Vector data processing in GRASS GIS}} help page ...6 KB (973 words) - 03:12, 23 January 2017
- ...It's available in '''PostGIS 2.0 and later'''. GRASS GIS supports PostGIS Topology in version '''GRASS 7.0 and later''' through [http://trac.osgeo.org/grass/w ...ta/osgeorel/2013-04-fem-gis/landa-fem-gis-2013-04.pdf Working with PostGIS Topology in GRASS GIS] ([http://gis.cri.fmach.it/news/47/15/Seminar-Advances-in-GIS- ...15 KB (1,952 words) - 21:55, 6 November 2017
- ...rass70/manuals/vectorintro.html#vector-model-and-topology Vector model and topology] * [[Vector topology cleaning]] ...4 KB (664 words) - 15:13, 22 July 2016
- ...What would be the 'recommended' way of dealing with the 'errors' found in vector data which were created with zero topological restrictions (and saved as .s A hint for snapping: {{cmd|v.in.ogr}} suggest for vector data with topological errors a range of <nowiki>[1e-08, 1]</nowiki> for sui ...6 KB (1,018 words) - 13:02, 5 April 2020
- * Raster / vector processing * 3D raster / vector modelling ...2 KB (228 words) - 20:31, 2 September 2018
- ...GRASS maps are identical. It uses the MD5 cryptographic hash function. For vector map layers it does not check if the attribute table(s) are identical, too. ...pression. Optionally, a prefix can be added to all files copied and vector topology can be rebuilt to match currently running version of GRASS. ...2 KB (400 words) - 07:31, 25 June 2020
- ==Vector data management== ===Importing Vector data=== ...8 KB (893 words) - 21:41, 24 March 2014
- ...miliarize you with the improved functionality and will focus on raster and vector data management as well some basic spatial data analysis. New developments in GRASS GIS have made major improvements to the vector ...6 KB (852 words) - 08:29, 30 July 2013