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GRASS GIS 6.4.3 Reference Manual

Geographic Resources Analysis Support System, commonly referred to as GRASS, is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.

This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU GPL'ed), image processing and geographic information system (GIS).

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vector commands:
v.buffer v.buffer
v.build.all Rebuilds topology on all vector maps in the current mapset.
v.build v.build
v.build.polylines v.build.polylines
v.category v.category
v.centroids Adds missing centroids to closed boundaries.
v.class v.class
v.clean v.clean
v.colors Set color rules for features in a vector using a numeric attribute column.
v.convert.all Converts all older versions of GRASS vector maps in current mapset to current format.
v.convert v.convert
v.db.addcol Adds one or more columns to the attribute table connected to a given vector map.
v.db.addtable Creates and connects a new attribute table to a given layer of an existing vector map.
v.db.connect v.db.connect
v.db.dropcol Drops a column from the attribute table connected to a given vector map.
v.db.droptable Removes existing attribute table of a vector map.
v.db.join Joins a database table to a vector map table.
v.db.reconnect.all Reconnects vectors to a new database.
v.db.renamecol Renames a column in the attribute table connected to a given vector map.
v.db.select v.db.select
v.db.univar Calculates univariate statistics on selected table column for a GRASS vector map.
v.db.update Updates a column in the attribute table connected to a vector map.
v.delaunay v.delaunay
v.digit Interactive editing and digitization of vector maps.
v.dissolve Dissolves boundaries between adjacent areas sharing a common category number or attribute.
v.distance v.distance
v.drape v.drape
v.edit v.edit
v.external v.external
v.extract v.extract
v.extrude v.extrude
v.generalize v.generalize
v.hull v.hull
v.in.ascii v.in.ascii
v.in.db v.in.db
v.in.dxf v.in.dxf
v.in.e00 Import E00 file into a vector map.
v.in.garmin Download waypoints, routes, and tracks from a Garmin GPS receiver into a vector map.
v.in.geonames Imports geonames.org country files into a GRASS vector points map.
v.in.gns Imports US-NGA GEOnet Names Server (GNS) country files into a GRASS vector points map.
v.in.gpsbabel Import waypoints, routes, and tracks from a GPS receiver or GPS download file into a vector map.
v.in.lines Import ASCII x,y[,z] coordinates as a series of lines.
v.in.mapgen Imports Mapgen or Matlab-ASCII vector maps into GRASS.
v.in.ogr v.in.ogr
v.in.region v.in.region
v.in.sites.all Converts all old GRASS < Ver5.7 sites maps in current mapset to vector maps.
v.in.sites v.in.sites
v.in.wfs Import GetFeature from WFS
v.info v.info
v.kcv v.kcv
v.kernel v.kernel
v.label Creates paint labels for a vector map from attached attributes.
v.label.sa Create optimally placed labels for vector map(s)
v.lidar.correction v.lidar.correction
v.lidar.edgedetection v.lidar.edgedetection
v.lidar.growing v.lidar.growing
v.lrs.create v.lrs.create
v.lrs.label v.lrs.label
v.lrs.segment v.lrs.segment
v.lrs.where v.lrs.where
v.mkgrid v.mkgrid
v.neighbors v.neighbors
v.net.alloc v.net.alloc
v.net.allpairs Computes the shortest path between all pairs of nodes in the network.
v.net.bridge Computes bridges and articulation points in the network.
v.net.centrality Computes degree, centrality, betweeness, closeness and eigenvector centrality measures in the network.
v.net.components Computes strongly and weakly connected components in the network.
v.net.connectivity Computes vertex connectivity between two sets of nodes in the network.
v.net.distance Computes shortest distance via the network between the given sets of features.
v.net.flow Computes the maximum flow between two sets of nodes in the network.
v.net v.net
v.net.iso v.net.iso
v.net.path v.net.path
v.net.salesman v.net.salesman
v.net.spanningtree Computes minimum spanning tree for the network.
v.net.steiner v.net.steiner
v.net.timetable Finds shortest path using timetables.
v.net.visibility v.net.visibility
v.normal v.normal
v.out.ascii v.out.ascii
v.out.dxf v.out.dxf
v.out.gpsbabel Exports a vector map to a GPS receiver or file format supported by GpsBabel.
v.out.ogr v.out.ogr
v.out.pov v.out.pov
v.out.svg v.out.svg
v.out.vtk v.out.vtk
v.outlier v.outlier
v.overlay v.overlay
v.parallel v.parallel
v.patch v.patch
v.perturb v.perturb
v.proj v.proj
v.qcount v.qcount
v.random v.random
v.rast.stats Calculates univariate statistics from a raster map based on vector polygons and uploads statistics to new attribute columns.
v.reclass v.reclass
v.report Reports geometry statistics for vectors.
v.sample v.sample
v.segment v.segment
v.select v.select
v.split v.split
v.support v.support
v.surf.bspline v.surf.bspline
v.surf.idw v.surf.idw
v.surf.rst v.surf.rst
v.to.3d v.to.3d
v.to.db v.to.db
v.to.points v.to.points
v.to.rast v.to.rast
v.to.rast3 v.to.rast3
v.transform v.transform
v.type v.type
v.univar v.univar
v.univar.sh Calculates univariate statistics on selected table column for a GRASS vector map.
v.vect.stats v.vect.stats
v.vol.rst v.vol.rst
v.voronoi v.voronoi
v.what v.what
v.what.rast v.what.rast
v.what.vect Uploads vector values at positions of vector points to the table.



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© 2003-2013 GRASS Development Team, GRASS GIS 6.4.3 Reference Manual