section 1grass · User commands 💻

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V (continued)

v.drape(1grass)Converts 2D vector features to 3D by sampling of elevation raster map.✨
v.edit(1grass)Edits a vector map, allows adding, deleting and modifying selected vector features.✨
v.external(1grass)Creates a new pseudo-vector map as a link to an OGR-supported layer or a PostGIS feature table.✨
v.external.out(1grass)Defines vector output format.✨
v.extract(1grass)Selects vector features from an existing vector map and creates a new vector map containing only the selected features.✨
v.extrude(1grass)Extrudes flat vector features to 3D vector features with defined height. Optionally the height can be derived from sampling of elevation raster map.✨
v.fill.holes(1grass)Fill holes in areas by keeping only outer boundaries✨
v.generalize(1grass)Performs vector based generalization.✨
v.hull(1grass)Produces a 2D/3D convex hull for a given vector map.✨
v.import(1grass)Imports vector data into a GRASS vector map using OGR library and reprojects on the fly.✨
v.in.ascii(1grass)Creates a vector map from an ASCII points file or ASCII vector file.✨
v.in.db(1grass)Creates new vector (points) map from database table containing coordinates.✨
v.in.dxf(1grass)Converts file in DXF format to GRASS vector map.✨
v.in.e00(1grass)Imports E00 file into a vector map.✨
v.in.geonames(1grass)Imports geonames.org country files into a vector points map.✨
v.in.lines(1grass)Imports ASCII x,y[,z] coordinates as a series of lines.✨
v.in.mapgen(1grass)Imports Mapgen or Matlab-ASCII vector maps into GRASS.✨
v.in.ogr(1grass)Imports vector data into a GRASS vector map using OGR library.✨
v.in.pdal(1grass)Converts LAS LiDAR point clouds to a GRASS vector map with PDAL.✨
v.in.region(1grass)Creates a vector polygon from the current region extent.✨
v.in.wfs(1grass)Imports GetFeature from a WFS server.✨
v.info(1grass)Outputs basic information about a vector map.✨
v.kcv(1grass)Randomly partition points into test/train sets.✨
v.kernel(1grass)Generates a raster density map from vector points map. Density is computed using a moving kernel. Optionally generates a vector density map on a vector network.✨
v.label(1grass)Creates paint labels for a vector map from attached attributes.✨
v.label.sa(1grass)Create optimally placed labels for vector map(s)✨
v.lidar.correction(1grass)Corrects the v.lidar.growing output. It is the last of the three algorithms for LIDAR filtering.✨
v.lidar.edgedetection(1grass)Detects the object’s edges from a LIDAR data set.✨
v.lidar.growing(1grass)Building contour determination and Region Growing algorithm for determining the building inside✨
v.lrs.create(1grass)Creates a linear reference system.✨
v.lrs.label(1grass)Creates stationing from input lines, and linear reference system.✨
v.lrs.segment(1grass)Creates points/segments from input lines, linear reference system and positions read from stdin or a file.✨
v.lrs.where(1grass)Finds line id and real km+offset for given points in vector map using linear reference system.✨
v.mkgrid(1grass)Creates a vector map of a user-defined grid.✨
v.neighbors(1grass)Neighborhood analysis tool for vector point maps. Makes each cell value a function of the attribute values assigned to the vector points or centroids in a radius around it, and stores new cell…✨
v.net(1grass)Performs network maintenance.✨
v.net.alloc(1grass)Allocates subnets for nearest centers. Center node must be opened (costs >= 0). Costs of center node are used in calculation.✨
v.net.allpairs(1grass)Computes the shortest path between all pairs of nodes in the network.✨
v.net.bridge(1grass)Computes bridges and articulation points in the network.✨
v.net.centrality(1grass)Computes degree, centrality, betweeness, closeness and eigenvector centrality measures in the network.✨
v.net.components(1grass)Computes strongly and weakly connected components in the network.✨
v.net.connectivity(1grass)Computes vertex connectivity between two sets of nodes in the network.✨
v.net.distance(1grass)Computes shortest distance via the network between the given sets of features. Finds the shortest paths from each ’from’ point to the nearest ’to’ feature and various information about this…✨
v.net.flow(1grass)Computes the maximum flow between two sets of nodes in the network.✨
v.net.iso(1grass)Splits subnets for nearest centers by cost isolines. Splits net to bands between cost isolines (direction from center). Center node must be opened (costs >= 0). Costs of center node are used in…✨
v.net.path(1grass)Finds shortest path on vector network.✨
v.net.salesman(1grass)Creates a cycle connecting given nodes (Traveling salesman problem). Note that TSP is NP-hard, heuristic algorithm is used by this module and created cycle may be sub optimal✨
v.net.spanningtree(1grass)Computes minimum spanning tree for the network.✨
v.net.steiner(1grass)Creates Steiner tree for the network and given terminals. Note that ’Minimum Steiner Tree’ problem is NP-hard and heuristic algorithm is used in this module so the result may be sub optimal.✨
v.net.timetable(1grass)Finds shortest path using timetables.✨
v.net.visibility(1grass)Performs visibility graph construction.✨
v.normal(1grass)Tests for normality for vector points.✨
v.out.ascii(1grass)Exports a vector map to a GRASS ASCII vector representation. By default only features with category are exported. To export all features use ’layer=-1’.✨
v.out.dxf(1grass)Exports vector map to DXF file format.✨
v.out.ogr(1grass)Exports a vector map layer to any of the supported OGR vector formats. By default a vector map layer is exported to OGC GeoPackage format.✨
v.out.postgis(1grass)Exports a vector map layer to PostGIS feature table.✨
v.out.pov(1grass)Converts GRASS x,y,z points to POV-Ray x,z,y format.✨
v.out.svg(1grass)Exports a vector map to SVG file.✨
v.out.vtk(1grass)Converts a vector map to VTK ASCII output.✨
v.outlier(1grass)Removes outliers from vector point data.✨
v.overlay(1grass)Overlays two vector maps offering clip, intersection, difference, symmetrical difference, union operators.✨
v.pack(1grass)Exports a vector map as GRASS specific archive file✨
v.parallel(1grass)Creates parallel line to input vector lines.✨
v.patch(1grass)Creates a new vector map by combining other vector maps.✨
v.perturb(1grass)Random location perturbations of vector points.✨
v.profile(1grass)Vector map profiling tool✨
v.proj(1grass)Re-projects a vector map from one project to the current project.✨
v.qcount(1grass)Indices for quadrat counts of vector point lists.✨
v.random(1grass)Generates random 2D/3D vector points.✨
v.rast.stats(1grass)Calculates univariate statistics from a raster map based on a vector map and uploads statistics to new attribute columns.✨
v.reclass(1grass)Changes vector category values for an existing vector map according to results of SQL queries or a value in attribute table column.✨
v.rectify(1grass)Rectifies a vector by computing a coordinate transformation for each object in the vector based on the control points.✨
v.report(1grass)Reports geometry statistics for vector maps.✨
v.sample(1grass)Samples a raster map at vector point locations.✨
v.segment(1grass)Creates points/segments from input vector lines and positions.✨
v.select(1grass)Selects features from vector map (A) by features from other vector map (B).✨
v.split(1grass)Splits vector lines to shorter segments.✨
v.support(1grass)Updates vector map metadata.✨
v.surf.bspline(1grass)Performs bicubic or bilinear spline interpolation with Tykhonov regularization.✨
v.surf.idw(1grass)Provides surface interpolation from vector point data by Inverse Distance Squared Weighting.✨
v.surf.rst(1grass)Performs surface interpolation from vector points map by splines. Spatial approximation and topographic analysis from given point or isoline data in vector format to floating point raster format…✨
v.timestamp(1grass)Modifies a timestamp for a vector map. Print/add/remove a timestamp for a vector map.✨
v.to.3d(1grass)Performs transformation of 2D vector features to 3D.✨
v.to.db(1grass)Populates attribute values from vector features.✨
v.to.lines(1grass)Converts vector polygons or points to lines.✨
v.to.points(1grass)Creates points along input lines in new vector map with 2 layers.✨
v.to.rast(1grass)Converts (rasterize) a vector map into a raster map.✨
v.to.rast3(1grass)Converts a vector map (only points) into a 3D raster map.✨
v.transform(1grass)Performs an affine transformation (shift, scale and rotate) on vector map.✨
v.type(1grass)Changes type of vector features.✨
v.univar(1grass)Calculates univariate statistics of vector map features. Variance and standard deviation is calculated only for points if specified.✨
v.unpack(1grass)Imports a GRASS specific vector archive file (packed with v.pack) as a vector map✨
v.vect.stats(1grass)Count points in areas, calculate statistics from point attributes.✨
v.vol.rst(1grass)Interpolates point data to a 3D raster map using regularized spline with tension (RST) algorithm.✨
v.voronoi(1grass)Creates a Voronoi diagram constrained to the extents of the current region from an input vector map containing points or centroids.✨
v.what(1grass)Queries a vector map at given locations.✨
v.what.rast(1grass)Uploads raster values at positions of vector points to the table.✨
v.what.rast3(1grass)Uploads 3D raster values at positions of vector points to the table.✨
v.what.strds(1grass)Uploads space time raster dataset values at positions of vector points to the table.✨
v.what.vect(1grass)Uploads vector values at positions of vector points to the table.✨
variables(1grass)✨
vector(1grass)✨
vector_graphical(1grass)✨
vectorascii(1grass)✨
vectorintro(1grass)✨

W

wxGUI(1grass)✨
wxGUI.animation(1grass)✨
wxGUI.components(1grass)✨
wxGUI.datacatalog(1grass)✨
wxGUI.dbmgr(1grass)✨
wxGUI.gcp(1grass)✨
wxGUI.gmodeler(1grass)✨
wxGUI.iclass(1grass)✨
wxGUI.image2target(1grass)✨
wxGUI.iscatt(1grass)✨
wxGUI.mapswipe(1grass)✨
wxGUI.modules(1grass)✨
wxGUI.nviz(1grass)✨
wxGUI.photo2image(1grass)✨
wxGUI.psmap(1grass)✨
wxGUI.rdigit(1grass)✨
wxGUI.rlisetup(1grass)✨
wxGUI.timeline(1grass)✨
wxGUI.toolboxes(1grass)✨
wxGUI.tplot(1grass)✨
wxGUI.vdigit(1grass)✨
wxGUI.vnet(1grass)✨
wxGUI_graphical(1grass)✨
wxguiintro(1grass)✨
wxpyimgview(1grass)Views BMP images from the PNG driver.✨

X

ximgview(1grass)View BMP images from the PNG driver.✨