vector_graphical(1grass) GRASS GIS User's Manual vector_graphical(1grass)
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Graphical index of GRASS GIS modules
Go to vector introduction | topics
Vector modules:
• v.buffer Creates a buffer around vector features of given type.
• v.build.all Rebuilds topology on all vector maps in the current
mapset.
• v.build Creates topology for vector map.
• v.build.polylines Builds polylines from lines or boundaries.
• v.category Attaches, deletes or reports vector categories
to/from/of map geometry.
• v.centroids Adds missing centroids to closed boundaries.
• v.class Classifies attribute data, e.g. for thematic mapping
• v.clean Toolset for cleaning topology of vector map.
• v.clip Extracts features of input map which overlay features of
clip map.
• v.cluster Performs cluster identification.
• v.colors Creates/modifies the color table associated with a
vector map.
• v.colors.out Exports the color table associated with a vector
map.
• v.db.addcolumn 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 Prints/sets DB connection for a vector map to at-
tribute table.
• v.db.dropcolumn Drops a column from the attribute table con-
nected to a given vector map.
• v.db.droprow Removes a vector feature from a vector map through
attribute selection.
• 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 attribute tables for all vector
maps from the current mapset to a new database.
• v.db.renamecolumn Renames a column in the attribute table con-
nected to a given vector map.
• v.db.select Prints vector map attributes.
• 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.decimate Decimates a point cloud
• v.delaunay Creates a Delaunay triangulation from an input vec-
tor map containing points or centroids.
• v.dissolve Dissolves boundaries between adjacent areas sharing
a common category number or attribute.
• v.distance Finds the nearest element in vector map ’to’ for el-
ements in vector map ’from’.
• v.drape Converts 2D vector features to 3D by sampling of eleva-
tion raster map.
• v.edit Edits a vector map, allows adding, deleting and modify-
ing selected vector features.
• v.external Creates a new pseudo-vector map as a link to an
OGR-supported layer or a PostGIS feature table.
• v.external.out Defines vector output format.
• v.extract Selects vector features from an existing vector map
and creates a new vector map containing only the selected fea-
tures.
• v.extrude Extrudes flat vector features to 3D vector features
with defined height.
• v.generalize Performs vector based generalization.
• v.hull Produces a 2D/3D convex hull for a given vector map.
• v.import Imports vector data into a GRASS vector map using OGR
library and reprojects on the fly.
• v.in.ascii Creates a vector map from an ASCII points file or
ASCII vector file.
• v.in.db Creates new vector (points) map from database table
containing coordinates.
• v.in.dxf Converts file in DXF format to GRASS vector map.
• v.in.e00 Imports E00 file into a vector map.
• v.in.geonames Imports geonames.org country files into a vector
points map.
• v.in.lines Imports 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 Imports vector data into a GRASS vector map using OGR
library.
• v.in.region Creates a vector polygon from the current region
extent.
• v.in.wfs Imports GetFeature from a WFS server.
• v.info Outputs basic information about a vector map.
• v.kcv Randomly partition points into test/train sets.
• v.kernel Generates a raster density map from vector points map.
• v.label Creates paint labels for a vector map from attached at-
tributes.
• v.label.sa Create optimally placed labels for vector map(s)
• v.lidar.correction Corrects the v.lidar.growing output. It is
the last of the three algorithms for LIDAR filtering.
• v.lidar.edgedetection Detects the object’s edges from a LIDAR
data set.
• v.lidar.growing Building contour determination and Region Grow-
ing algorithm for determining the building inside
• v.lrs.create Creates a linear reference system.
• v.lrs.label Creates stationing from input lines, and linear
reference system.
• v.lrs.segment Creates points/segments from input lines, linear
reference system and positions read from stdin or a file.
• v.lrs.where Finds line id and real km+offset for given points
in vector map using linear reference system.
• v.mkgrid Creates a vector map of a user-defined grid.
• v.neighbors Neighborhood analysis tool for vector point maps.
• v.net.alloc Allocates subnets for nearest centers.
• 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 compo-
nents 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 be-
tween the given sets of features.
• v.net.flow Computes the maximum flow between two sets of nodes
in the network.
• v.net Performs network maintenance.
• v.net.iso Splits subnets for nearest centers by cost isolines.
• v.net.path Finds shortest path on vector network.
• v.net.salesman Creates a cycle connecting given nodes (Travel-
ing salesman problem).
• v.net.spanningtree Computes minimum spanning tree for the net-
work.
• v.net.steiner Creates Steiner tree for the network and given
terminals.
• v.net.timetable Finds shortest path using timetables.
• v.net.visibility Performs visibility graph construction.
• v.normal Tests for normality for vector points.
• v.out.ascii Exports a vector map to a GRASS ASCII vector repre-
sentation.
• v.out.dxf Exports vector map to DXF file format.
• v.out.ogr Exports a vector map layer to any of the supported
OGR vector formats.
• v.out.postgis Exports a vector map layer to PostGIS feature ta-
ble.
• v.out.pov Converts GRASS x,y,z points to POV-Ray x,z,y format.
• v.out.svg Exports a vector map to SVG file.
• v.out.vtk Converts a vector map to VTK ASCII output.
• v.outlier Removes outliers from vector point data.
• v.overlay Overlays two vector maps offering clip, intersection,
difference, symmetrical difference, union operators.
• v.pack Exports a vector map as GRASS GIS specific archive file
• v.parallel Creates parallel line to input vector lines.
• v.patch Creates a new vector map by combining other vector
maps.
• v.perturb Random location perturbations of vector points.
• v.profile Vector map profiling tool
• v.proj Re-projects a vector map from one location to the cur-
rent location.
• v.qcount Indices for quadrat counts of vector point lists.
• v.random Generates random 2D/3D vector points.
• v.rast.stats Calculates univariate statistics from a raster map
based on a vector map and uploads statistics to new attribute
columns.
• v.reclass Changes vector category values for an existing vector
map according to results of SQL queries or a value in attribute
table column.
• v.rectify Rectifies a vector by computing a coordinate trans-
formation for each object in the vector based on the control
points.
• v.report Reports geometry statistics for vector maps.
• v.sample Samples a raster map at vector point locations.
• v.segment Creates points/segments from input vector lines and
positions.
• v.select Selects features from vector map (A) by features from
other vector map (B).
• v.split Splits vector lines to shorter segments.
• v.support Updates vector map metadata.
• v.surf.bspline Performs bicubic or bilinear spline interpola-
tion with Tykhonov regularization.
• v.surf.idw Provides surface interpolation from vector point
data by Inverse Distance Squared Weighting.
• v.surf.rst Performs surface interpolation from vector points
map by splines.
• v.timestamp Modifies a timestamp for a vector map.
• v.to.3d Performs transformation of 2D vector features to 3D.
• v.to.db Populates attribute values from vector features.
• v.to.lines Converts vector polygons or points to lines.
• v.to.points Creates points along input lines in new vector map
with 2 layers.
• v.to.rast Converts (rasterize) a vector map into a raster map.
• v.to.rast3 Converts a vector map (only points) into a 3D raster
map.
• v.transform Performs an affine transformation (shift, scale and
rotate) on vector map.
• v.type Changes type of vector features.
• v.univar Calculates univariate statistics of vector map fea-
tures.
• v.unpack Imports a GRASS GIS specific vector archive file
(packed with v.pack) as a vector map
• v.vect.stats Count points in areas, calculate statistics from
point attributes.
• v.vol.rst Interpolates point data to a 3D raster map using reg-
ularized spline with tension (RST) algorithm.
• v.voronoi Creates a Voronoi diagram constrained to the extents
of the current region from an input vector map containing
points or centroids.
• v.what Queries a vector map at given locations.
• v.what.rast Uploads raster values at positions of vector points
to the table.
• v.what.rast3 Uploads 3D raster values at positions of vector
points to the table.
• v.what.strds Uploads space time raster dataset values at posi-
tions of vector points to the table.
• v.what.vect Uploads vector values at positions of vector points
to the table.
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© 2003-2022 GRASS Development Team, GRASS GIS 7.8.7 Reference Manual
GRASS 7.8.7 vector_graphical(1grass)
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