File Workspace New Create new workspace self.OnWorkspaceNew Open Load workspace from file self.OnWorkspaceOpen Save Save workspace to open file self.OnWorkspaceSave Save as Save workspace to file self.OnWorkspaceSaveAs Close Close loaded workspace self.OnWorkspaceClose Load map layers Load map layers into layer tree self.OnWorkspaceLoad Load GRC file (Tcl/Tk GUI) Load map layers from GRC file to layer tree self.OnWorkspaceLoadGrcFile Import raster map Import raster data using GDAL Import GDAL supported raster file into a binary raster map layer. self.OnMenuCmd r.in.gdal Multiple raster data import using GDAL Converts selected GDAL layers to GRASS raster maps using r.in.gdal. self.OnImportGdalLayers Aggregate ASCII xyz import Create a raster map from an assemblage of many coordinates using univariate statistics. self.OnMenuCmd r.in.xyz ASCII grid import Converts ASCII raster file to binary raster map layer. self.OnMenuCmd r.in.ascii ASCII polygons and lines import Creates raster maps from ASCII polygon/line/point data files. self.OnMenuCmd r.in.poly Binary file import Import a binary raster file into a GRASS raster map layer. self.OnMenuCmd r.in.bin ESRI ASCII grid import Converts an ESRI ARC/INFO ascii raster file (GRID) into a (binary) raster map layer. self.OnMenuCmd r.in.arc GRIDATB.FOR import Imports GRIDATB.FOR map file (TOPMODEL) into GRASS raster map self.OnMenuCmd r.in.gridatb MAT-File (v.4) import Imports a binary MAT-File(v4) to a GRASS raster. self.OnMenuCmd r.in.mat SPOT NDVI import Import of SPOT VGT NDVI file into a raster map self.OnMenuCmd i.in.spotvgt SRTM HGT import Import SRTM HGT files into GRASS self.OnMenuCmd r.in.srtm Terra ASTER HDF import Georeference, rectify and import Terra-ASTER imagery and relative DEM's using gdalwarp. self.OnMenuCmd r.in.aster WMS import Downloads and imports data from WMS servers. self.OnImportWMS Import vector map Import vector data using OGR Convert OGR vector layers to GRASS vector map. self.OnMenuCmd v.in.ogr Multiple vector data import using OGR Converts selected OGR layers to GRASS vector maps using v.in.ogr. self.OnImportOgrLayers ASCII points/GRASS ASCII vector import Creates a vector map from ASCII points file or ASCII vector file. self.OnMenuCmd v.in.ascii Old GRASS vector import Imports older versions of GRASS vector maps. self.OnMenuCmd v.convert DXF import Converts files in DXF format to GRASS vector map format. self.OnMenuCmd v.in.dxf Multiple DXF layers import Converts selected DXF layers to GRASS vector maps (using v.in.dxf). self.OnImportDxfFile ESRI e00 import Import E00 file into a vector map. self.OnMenuCmd v.in.e00 Garmin GPS import Download waypoints, routes, and tracks from a Garmin GPS receiver into a vector map. self.OnMenuCmd v.in.garmin GPSBabel GPS import Import waypoints, routes, and tracks from a GPS receiver or GPS download file into a vector map. self.OnMenuCmd v.in.gpsbabel Geonames import Imports geonames.org country files into a GRASS vector points map. self.OnMenuCmd v.in.geonames GEOnet import Imports US-NGA GEOnet Names Server (GNS) country files into a GRASS vector points map. self.OnMenuCmd v.in.gns Matlab and MapGen import Import Mapgen or Matlab vector maps into GRASS. self.OnMenuCmd v.in.mapgen Import grid 3D volume ASCII 3D import Convert a 3D ASCII raster text file into a (binary) 3D raster map layer self.OnMenuCmd r3.in.ascii Vis5D import import of 3-dimensional Vis5D files (i.e. the v5d file with 1 variable and 1 time step) self.OnMenuCmd r3.in.v5d Import database table Multiple import formats using OGR Imports attribute tables in various formats. self.OnMenuCmd db.in.ogr Export raster map Multiple export formats using GDAL Exports GRASS raster map into GDAL supported formats. self.OnMenuCmd r.out.gdal ASCII grid export Converts a raster map layer into an ASCII text file. self.OnMenuCmd r.out.ascii ASCII x,y,z export Export a raster map to a text file as x,y,z values based on cell centers. self.OnMenuCmd r.out.xyz ESRI ASCII grid export Converts a raster map layer into an ESRI ARCGRID file. self.OnMenuCmd r.out.arc GRIDATB.FOR export Exports GRASS raster map to GRIDATB.FOR map file (TOPMODEL) self.OnMenuCmd r.out.gridatb MAT-File (v.4) export Exports a GRASS raster to a binary MAT-File. self.OnMenuCmd r.out.mat Binary export Exports a GRASS raster to a binary array. self.OnMenuCmd r.out.bin MPEG-1 export Raster File Series to MPEG Conversion Program. self.OnMenuCmd r.out.mpeg PNG export Export GRASS raster as non-georeferenced PNG image format. self.OnMenuCmd r.out.png PPM export Converts a GRASS raster map to a PPM image file at the pixel resolution of the currently defined region. self.OnMenuCmd r.out.ppm PPM from RGB export Converts 3 GRASS raster layers (R,G,B) to a PPM image file at the pixel resolution of the CURRENTLY DEFINED REGION. self.OnMenuCmd r.out.ppm3 POV-Ray export Converts a raster map layer into a height-field file for POVRAY. self.OnMenuCmd r.out.pov TIFF export Exports a GRASS raster map to a 8/24bit TIFF image file at the pixel resolution of the currently defined region. self.OnMenuCmd r.out.tiff VRML export Export a raster map to the Virtual Reality Modeling Language (VRML) self.OnMenuCmd r.out.vrml VTK export Converts raster maps into the VTK-Ascii format self.OnMenuCmd r.out.vtk Export vector map Multiple export formats using OGR Converts to one of the supported OGR vector formats. self.OnMenuCmd v.out.ogr ASCII points/GRASS ASCII vector export Converts a GRASS binary vector map to a GRASS ASCII vector map. self.OnMenuCmd v.out.ascii DXF export Exports GRASS vector map layers to DXF file format. self.OnMenuCmd v.out.dxf Multiple GPS export formats using GPSBabel Exports a vector map to a GPS receiver or file format supported by GPSBabel. self.OnMenuCmd v.out.gps POV-Ray export Converts to POV-Ray format, GRASS x,y,z -> POV-Ray x,z,y self.OnMenuCmd v.out.pov SVG export Exports a GRASS vector map to SVG. self.OnMenuCmd v.out.svg VTK export Converts a GRASS binary vector map to VTK ASCII output. self.OnMenuCmd v.out.vtk Export grid 3D volume ASCII 3D export Converts a 3D raster map layer into an ASCII text file self.OnMenuCmd r3.out.ascii Vis5D export Export of GRASS 3D raster map to 3-dimensional Vis5D file. self.OnMenuCmd r3.out.v5d VTK export Converts 3D raster maps (G3D) into the VTK-Ascii format self.OnMenuCmd r3.out.vtk Export database table Multiple export formats using OGR Exports attribute tables in various formats. self.OnMenuCmd db.out.ogr Manage maps and volumes Copy Copies available data files in the user's current mapset search path and location to the appropriate element directories under the user's current mapset. self.OnMenuCmd g.copy List Lists available GRASS data base files of the user-specified data type to standard output. self.OnMenuCmd g.list List filtered Apply regular expressions and wildcards to g.list self.OnMenuCmd g.mlist Rename Renames data base element files in the user's current mapset. self.OnMenuCmd g.rename Delete Removes data base element files from the user's current mapset. self.OnMenuCmd g.remove Delete filtered Apply regular expressions and wildcards to g.remove self.OnMenuCmd g.mremove Map type conversions Raster to vector Converts a raster map into a vector map layer. self.OnMenuCmd r.to.vect Raster series to volume Converts 2D raster map slices to one 3D raster volume map. self.OnMenuCmd r.to.rast3 Raster 2.5D to volume Creates a 3D volume map based on 2D elevation and value raster maps. self.OnMenuCmd r.to.rast3elev Vector to raster Converts a binary GRASS vector map layer into a GRASS raster map layer. self.OnMenuCmd v.to.rast Vector to volume Converts a binary GRASS vector map (only points) layer into a 3D GRASS raster map layer. self.OnMenuCmd v.to.rast3 2D vector to 3D vector Performs transformation of 2D vector features to 3D. self.OnMenuCmd v.to.3d Sites to vector Converts a GRASS site_lists file into a vector map. self.OnMenuCmd v.in.sites Volume to raster series Converts 3D raster maps to 2D raster maps self.OnMenuCmd r3.to.rast Georectify Georectify raster and vector maps self.OnGeorectify NVIZ (requires Tcl/Tk) nviz - Visualization and animation tool for GRASS data self.OnMenuCmd nviz Bearing/distance to coordinates It assumes a cartesian coordinate system self.OnMenuCmd m.cogo Postscript plot Hardcopy PostScript map output utility. self.OnMenuCmd ps.map E&xit Exit GUI self.OnCloseWindow Config Region Display region Manages the boundary definitions for the geographic region. self.RunMenuCmd g.region -p Set region Manages the boundary definitions for the geographic region. self.OnMenuCmd g.region -p GRASS working environment Mapset access Set/unset access to other mapsets in current location self.OnMapsets Change working environment Change current mapset. self.OnMenuCmd g.mapset User access Controls access to the current mapset for other users on the system. self.OnMenuCmd g.access Show settings Outputs and modifies the user's current GRASS variable settings. self.RunMenuCmd g.gisenv --v Change settings Outputs and modifies the user's current GRASS variable settings. self.OnMenuCmd g.gisenv Change default GUI Changes the default GRASS graphical user interface (GUI) setting. self.OnMenuCmd g.change.gui.py Version Displays version and copyright information. self.RunMenuCmd g.version -c Manage projections Manage projections Converts co-ordinate system descriptions (i.e. projection information) between various formats (including GRASS format). Can also be used to create GRASS locations. self.OnMenuCmd g.proj Convert coordinates Convert coordinates from one projection to another (cs2cs frontend). self.OnMenuCmd m.proj Preferences User GUI preferences (display font, commands, digitizer, etc.) self.OnPreferences Raster Develop raster map Compress/decompress Compresses and decompresses raster maps. self.OnMenuCmd r.compress Region boundaries Sets the boundary definitions for a raster map. self.OnMenuCmd r.region Manage NULL values Creates explicitly the NULL-value bitmap file. self.OnMenuCmd r.null Quantization Produces the quantization file for a floating-point map. self.OnMenuCmd r.quant Timestamp Print/add/remove a timestamp for a raster map. self.OnMenuCmd r.timestamp Resample using aggregate statistics Resamples raster map layers using aggregation. self.OnMenuCmd r.resamp.stats Resample using multiple methods Resamples raster map layers using interpolation. self.OnMenuCmd r.resamp.interp Resample using nearest neighbor GRASS raster map layer data resampling capability. self.OnMenuCmd r.resample Resample using spline tension Reinterpolates and optionally computes topographic analysis from input raster map to a new raster map (possibly with different resolution) using regularized spline with tension and smoothing. self.OnMenuCmd r.resamp.rst Support file maintenance Allows creation and/or modification of raster map layer support files. self.OnMenuCmd r.support Update map statistics Update raster map statistics self.OnMenuCmd r.support.stats Link to GDAL Link GDAL supported raster file to a binary raster map layer. self.OnMenuCmd r.external Reproject raster Re-projects a raster map from one location to the current location. self.OnMenuCmd r.proj Tiling Produces tilings of the source projection for use in the destination region and projection. self.OnMenuCmd r.tileset Manage colors Color tables Creates/modifies the color table associated with a raster map layer. self.OnMenuCmd r.colors Color tables (stddev) Set color rules based on stddev from a map's mean value. self.OnMenuCmd r.colors.stddev Color rules Set colors interactively by entering color rules self.RulesCmd r.colors Blend 2 color rasters Blends color components of two raster maps by a given ratio. self.OnMenuCmd r.blend Create RGB Combines red, green and blue map layers into a single composite map layer. self.OnMenuCmd r.composite RGB to HIS Generates red, green and blue raster map layers combining hue, intensity and saturation (HIS) values from user-specified input raster map layers. self.OnMenuCmd r.his Query by coordinates Queries raster map layers on their category values and category labels. self.OnMenuCmd r.what Buffer rasters Creates a raster map layer showing buffer zones surrounding cells that contain non-NULL category values. self.OnMenuCmd r.buffer Closest points Locates the closest points between objects in two raster maps. self.OnMenuCmd r.distance Mask Create a MASK for limiting raster operation self.OnMenuCmd r.mask Map calculator Map calculator for raster map algebra self.DispMapCalculator Neighborhood analysis Moving window Makes each cell category value a function of the category values assigned to the cells around it, and stores new cell values in an output raster map layer. self.OnMenuCmd r.neighbors Neighborhood points Makes each cell value a function of the attribute values assigned to the vector points or centroids around it, and stores new cell values in an output raster map layer. self.OnMenuCmd v.neighbors Overlay rasters Cross product Creates a cross product of the category values from multiple raster map layers. self.OnMenuCmd r.cross Raster series Makes each output cell value a function of the values assigned to the corresponding cells in the input raster map layers. self.OnMenuCmd r.series Patch raster maps Creates a composite raster map layer by using known category values from one (or more) map layer(s) to fill in areas of "no data" in another map layer. self.OnMenuCmd r.patch Statistical overlay Calculates category or object oriented statistics. self.OnMenuCmd r.statistics Solar radiance and shadows Solar irradiance and irradiation Computes direct (beam), diffuse and reflected solar irradiation raster maps for given day, latitude, surface and atmospheric conditions. Solar parameters (e.g. sunrise, sunset times, declination, extraterrestrial irradiance, daylight length) are saved in the map history file. Alternatively, a local time can be specified to compute solar incidence angle and/or irradiance raster maps. The shadowing effect of the topography is optionally incorporated. self.OnMenuCmd r.sun Shadows map Calculates cast shadow areas from sun position and DEM. Either A: exact sun position is specified, or B: date/time to calculate the sun position by r.sunmask itself. self.OnMenuCmd r.sunmask Terrain analysis Cumulative movement costs Outputs a raster map layer showing the anisotropic cumulative cost of moving between different geographic locations on an input elevation raster map layer whose cell category values represent elevation combined with an input raster map layer whose cell values represent friction cost. self.OnMenuCmd r.walk Cost surface Outputs a raster map layer showing the cumulative cost of moving between different geographic locations on an input raster map layer whose cell category values represent cost. self.OnMenuCmd r.cost Least cost route or flow Traces a flow through an elevation model on a raster map layer. self.OnMenuCmd r.drain Shaded relief Creates shaded relief map from an elevation map (DEM). self.OnMenuCmd r.shaded.relief Slope and aspect Generates raster map layers of slope, aspect, curvatures and partial derivatives from a raster map layer of true elevation values. Aspect is calculated counterclockwise from east. self.OnMenuCmd r.slope.aspect Terrain parameters Uses a multi-scale approach by taking fitting quadratic parameters to any size window (via least squares). self.OnMenuCmd r.param.scale Textural features Generate images with textural features from a raster map. self.OnMenuCmd r.texture Visibility Line-of-sight raster analysis program. self.OnMenuCmd r.los Distance to features Generates a raster map layer of distance to features in input layer. self.OnMenuCmd r.grow.distance Horizon angle Horizon angle computation from a digital elevation model. self.OnMenuCmd r.horizon Transform features Clump Recategorizes data in a raster map layer by grouping cells that form physically discrete areas into unique categories. self.OnMenuCmd r.clump Grow Generates a raster map layer with contiguous areas grown by one cell. self.OnMenuCmd r.grow Thin Thins non-zero cells that denote linear features in a raster map layer. self.OnMenuCmd r.thin Hydrologic modeling Carve stream channels Takes vector stream data, transforms it to raster and subtracts depth from the output DEM. self.OnMenuCmd r.carve Fill lake Fills lake from seed at given level self.OnMenuCmd r.lake Depressionless map and flowlines Filters and generates a depressionless elevation map and a flow direction map from a given elevation layer. self.OnMenuCmd r.fill.dir Flow accumulation Flow computation for massive grids (Float version). self.OnMenuCmd r.terraflow Flow lines Construction of slope curves (flowlines), flowpath lengths, and flowline densities (upslope areas) from a raster digital elevation model (DEM) self.OnMenuCmd r.flow SIMWE Overland flow modeling Overland flow hydrologic simulation using path sampling method (SIMWE) self.OnMenuCmd r.sim.water SIMWE Sediment flux modeling Sediment transport and erosion/deposition simulation using path sampling method (SIMWE) self.OnMenuCmd r.sim.sediment Topographic index map Creates topographic index [ln(a/tan(beta))] map from elevation map. self.OnMenuCmd r.topidx TOPMODEL simulation Simulates TOPMODEL which is a physically based hydrologic model. self.OnMenuCmd r.topmodel USLE K Factor USLE K Factor: Soil Erodibility. self.OnMenuCmd r.uslek USLE R Factor USLE R Factor: Rainfall Erosivity. self.OnMenuCmd r.usler Watershed subbasins Generates a raster map layer showing watershed subbasins. self.OnMenuCmd r.basins.fill Watershed analysis Watershed basin analysis program. self.OnMenuCmd r.watershed Watershed basin creation Watershed basin creation program. self.OnMenuCmd r.water.outlet Landscape structure modeling Analyze landscape Contains a set of measures for attributes, diversity, texture, juxtaposition, and edge. self.OnMenuCmd r.le.pixel Analyze patches Calculates attribute, patch size, core (interior) size, shape, fractal dimension, and perimeter measures for sets of patches in a landscape. self.OnMenuCmd r.le.patch Output Displays the boundary of each r.le patch and shows how the boundary is traced, displays the attribute, size, perimeter and shape indices for each patch and saves the data in an output file. self.OnMenuCmd r.le.trace Landscape patch analysis Set up sampling and analysis framework Configuration editor for r.li.'index' self.OnMenuCmd r.li.setup Edge density Calculates edge density index on a raster map, using a 4 neighbour algorithm self.OnMenuCmd r.li.edgedensity Contrast weighted edge density Calculates contrast weighted edge density index on a raster map self.OnMenuCmd r.li.cwed Patch area mean Calculates mean patch size index on a raster map, using a 4 neighbour algorithm self.OnMenuCmd r.li.mps Patch area range Calculates range of patch area size on a raster map self.OnMenuCmd r.li.padrange Patch area Std Dev Calculates standard deviation of patch area a raster map self.OnMenuCmd r.li.padsd Patch area Coeff Var Calculates coefficient of variation of patch area on a raster map self.OnMenuCmd r.li.padcv Patch density Calculates patch density index on a raster map, using a 4 neighbour algorithm self.OnMenuCmd r.li.patchdensity Patch number Calculates patch number index on a raster map, using a 4 neighbour algorithm. self.OnMenuCmd r.li.patchnum Dominance's diversity Calculates dominance's diversity index on a raster map self.OnMenuCmd r.li.dominance Shannon's diversity Calculates Shannon's diversity index on a raster map self.OnMenuCmd r.li.shannon Simpson's diversity Calculates Simpson's diversity index on a raster map self.OnMenuCmd r.li.simpson Richness Calculates dominance's diversity index on a raster map self.OnMenuCmd r.li.richness Shape index Calculates shape index on a raster map self.OnMenuCmd r.li.shape Wildfire modeling Rate of spread Generates three, or four raster map layers showing 1) the base (perpendicular) rate of spread (ROS), 2) the maximum (forward) ROS, 3) the direction of the maximum ROS, and optionally 4) the maximum potential spotting distance. self.OnMenuCmd r.ros Least-cost spread paths Recursively traces the least cost path backwards to cells from which the cumulative cost was determined. self.OnMenuCmd r.spreadpath Anisotropic spread simulation It optionally produces raster maps to contain backlink UTM coordinates for tracing spread paths. self.OnMenuCmd r.spread Change category values and labels Interactively edit category values Interactively edit cell values in a raster map. self.OnMenuCmd d.rast.edit Reclassify by size Reclasses a raster map greater or less than user specified area size (in hectares) self.OnMenuCmd r.reclass.area Reclassify interactively Reclassify raster categories interactively by entering reclass rules self.RulesCmd r.reclass Reclassify using rules file Creates a new map layer whose category values are based upon a reclassification of the categories in an existing raster map layer. self.OnMenuCmd r.reclass Recode interactively Recode raster categories interactively by entering recode rules (create new raster map) self.RulesCmd r.recode Recode using rules file r.recode.rules - Use ascii rules file to recode categories in raster map self.OnMenuCmd r.recode.file Rescale Rescales the range of category values in a raster map layer. self.OnMenuCmd r.rescale Rescale with histogram Rescales histogram equalized the range of category values in a raster map layer. self.OnMenuCmd r.rescale.eq Concentric circles Creates a raster map containing concentric rings around a given point. self.OnMenuCmd r.circle Generate random cells Random cells Generates random cell values with spatial dependence. self.OnMenuCmd r.random.cells Random cells and vector points Creates a raster map layer and vector point map containing randomly located sites. self.OnMenuCmd r.random Generate surfaces Fractal surface Creates a fractal surface of a given fractal dimension. self.OnMenuCmd r.surf.fractal Gaussian kernel density surface Generates a raster density map from vector points data using a moving 2D isotropic Gaussian kernel or optionally generates a vector density map on vector network with a 1D kernel. self.OnMenuCmd v.kernel Gaussian deviates surface GRASS module to produce a raster map layer of gaussian deviates whose mean and standard deviation can be expressed by the user. It uses a gaussian random number generator. self.OnMenuCmd r.surf.gauss Plane Creates raster plane map given dip (inclination), aspect (azimuth) and one point. self.OnMenuCmd r.plane Random deviates surface Produces a raster map layer of uniform random deviates whose range can be expressed by the user. self.OnMenuCmd r.surf.random Random surface with spatial dependence Generates random surface(s) with spatial dependence. self.OnMenuCmd r.random.surface Generate contour lines Produces a vector map layer of specified contours from a raster map layer. self.OnMenuCmd r.contour Interpolate surfaces Bilinear from raster points Bilinear interpolation utility for raster map layers. self.OnMenuCmd r.bilinear Bilinear and bicubic from vector points Bicubic or bilinear spline interpolation with Tykhonov regularization. self.OnMenuCmd v.surf.bspline IDW from raster points Surface interpolation utility for raster map layers. self.OnMenuCmd r.surf.idw IDW from vector points Surface interpolation from vector point data by Inverse Distance Squared Weighting. self.OnMenuCmd v.surf.idw Raster contours Surface generation program from rasterized contours. self.OnMenuCmd r.surf.contour Regularized spline tension Spatial approximation and topographic analysis from given point or isoline data in vector format to floating point raster format using regularized spline with tension. self.OnMenuCmd v.surf.rst Fill NULL cells Fills no-data areas in raster maps using v.surf.rst splines interpolation self.OnMenuCmd r.fillnulls Report and statistics Basic raster metadata Output basic information about a raster map layer. self.OnMenuCmd r.info Manage category information Manages category values and labels associated with user-specified raster map layers. self.OnMenuCmd r.category General statistics Generates area statistics for raster map layers. self.OnMenuCmd r.stats Quantiles for large data sets Compute quantiles using two passes. self.OnMenuCmd r.quantile Range of category values Prints terse list of category values found in a raster map layer. self.OnMenuCmd r.describe Sum category values Sums up the raster cell values. self.OnMenuCmd r.sum Sum area by raster map and category Reports statistics for raster map layers. self.OnMenuCmd r.report Statistics for clumped cells Calculates the volume of data "clumps", and (optionally) produces a GRASS vector points map containing the calculated centroids of these clumps. self.OnMenuCmd r.volume Total corrected area Surface area estimation for rasters. self.OnMenuCmd r.surf.area Univariate raster statistics Calculates univariate statistics from the non-null cells of a raster map. self.OnMenuCmd r.univar Sample transects Outputs the raster map layer values lying on user-defined line(s). self.OnMenuCmd r.profile Sample transects (bearing/distance) Outputs raster map layer values lying along user defined transect line(s). self.OnMenuCmd r.transect Covariance/correlation Outputs a covariance/correlation matrix for user-specified raster map layer(s). self.OnMenuCmd r.covar Linear regression Calculates linear regression from two raster maps: y = a + b*x self.OnMenuCmd r.regression.line Mutual category occurrences Tabulates the mutual occurrence (coincidence) of categories for two raster map layers. self.OnMenuCmd r.coin Vector Develop vector map Create new vector map Create new empty vector map self.OnNewVector Edit vector map (non-interactively) Edits a vector map, allows adding, deleting and modifying selected vector features. self.OnMenuCmd v.edit Create or rebuild topology Creates topology for GRASS vector map. self.OnMenuCmd v.build Clean vector map Toolset for cleaning topology of vector map. self.OnMenuCmd v.clean Smooth or simplify Smooth or simplify lines/boundaries (remove vertices). self.OnMenuCmd v.generalize Convert object types Change the type of geometry elements. self.OnMenuCmd v.type_wrapper.py Add centroids Adds missing centroids to closed boundaries. self.OnMenuCmd v.centroids Build polylines Builds polylines from lines or boundaries. self.OnMenuCmd v.build.polylines Split polylines Creates points/segments from input vector lines and positions. self.OnMenuCmd v.segment Parallel lines Create parallel line to input lines self.OnMenuCmd v.parallel Dissolve boundaries Dissolves boundaries between adjacent areas sharing a common category number or attribute. self.OnMenuCmd v.dissolve Create 3D vector over raster Converts vector map to 3D by sampling of elevation raster map. self.OnMenuCmd v.drape Extrude 3D vector map Extrudes flat vector object to 3D with defined height. self.OnMenuCmd v.extrude Link to OGR Creates a new vector as a read-only link to OGR layer. self.OnMenuCmd v.external Create labels Creates paint labels for a vector map from attached attributes. self.OnMenuCmd v.label Reposition vector map Performs an affine transformation (shift, scale and rotate, or GPCs) on vector map. self.OnMenuCmd v.transform Reproject vector map Allows projection conversion of vector maps. self.OnMenuCmd v.proj Manage colors Color tables Set color rules for features in a vector using a numeric attribute column. self.OnMenuCmd v.colors Color rules Set colors interactively by entering color rules self.RulesCmd vcolors Query with attributes Selects vector objects from an existing vector map and creates a new map containing only the selected objects. self.OnMenuCmd v.extract Query with coordinate(s) Queries a vector map layer at given locations. self.OnMenuCmd v.what Query with another vector map Select features from ainput by features from binput self.OnMenuCmd v.select Buffer vectors Creates a buffer around features of given type (areas must contain centroid). self.OnMenuCmd v.buffer Lidar analysis Detect edges Detects the object's edges from a LIDAR data set. self.OnMenuCmd v.lidar.edgedetection Detect interiors Building contour determination and Region Growing algorithm for determining the building inside self.OnMenuCmd v.lidar.growing Correct and reclassify objects Correction of the v.lidar.growing output. It is the last of the three algorithms for LIDAR filtering. self.OnMenuCmd v.lidar.correction Linear referencing Create LRS Create Linear Reference System self.OnMenuCmd v.lrs.create Create stationing Create stationing from input lines, and linear reference system self.OnMenuCmd v.lrs.label Create points/segments Creates points/segments from input lines, linear reference system and positions read from stdin or a file. self.OnMenuCmd v.lrs.segment Find line id and offset Finds line id and real km+offset for given points in vector map using linear reference system. self.OnMenuCmd v.lrs.where Nearest features Finds the nearest element in vector map 'to' for elements in vector map 'from'. self.OnMenuCmd v.distance Network analysis Allocate subnets Centre node must be opened (costs >= 0). Costs of centre node are used in calculation self.OnMenuCmd v.net.alloc Network maintenance Network maintenance. self.OnMenuCmd v.net Visibility network Visibility graph construction. self.OnMenuCmd v.net.visibility Shortest path Finds shortest path on vector network. self.OnMenuCmd v.net.path Split net Splits net to bands between cost isolines (direction from centre). Centre node must be opened (costs >= 0). Costs of centre node are used in calculation. self.OnMenuCmd v.net.iso Steiner tree Note that 'Minimum Steiner Tree' problem is NP-hard and heuristic algorithm is used in this module so the result may be sub optimal self.OnMenuCmd v.net.steiner Traveling salesman analysis Note that TSP is NP-hard, heuristic algorithm is used by this module and created cycle may be sub optimal self.OnMenuCmd v.net.salesman Overlay vector maps Overlay vector maps Overlays two vector maps. self.OnMenuCmd v.overlay Patch vector maps Create a new vector map layer by combining other vector map layers. self.OnMenuCmd v.patch Change attributes Manage or report categories Attach, delete or report vector categories to map geometry. self.OnMenuCmd v.category Reclassify objects interactively Reclassify vector objects interactively by entering SQL rules self.RulesCmd v.reclass Reclassify objects using rules file Changes vector category values for an existing vector map according to results of SQL queries or a value in attribute table column. self.OnMenuCmd v.reclass Generate area for current region Create a new vector from the current region. self.OnMenuCmd v.in.region Generate areas from points Convex hull Uses a GRASS vector points map to produce a convex hull vector map. self.OnMenuCmd v.hull Delaunay triangles Creates a Delaunay triangulation from an input vector map containing points or centroids. self.OnMenuCmd v.delaunay Voronoi diagram/Thiessen polygons Creates a Voronoi diagram from an input vector map containing points or centroids. self.OnMenuCmd v.voronoi Generate grid Creates a GRASS vector map of a user-defined grid. self.OnMenuCmd v.mkgrid Generate points Generate from database Creates new vector (points) map from database table containing coordinates. self.OnMenuCmd v.in.db Generate points along lines Create points along input lines in new vector with 2 layers. self.OnMenuCmd v.to.points Generate random points Randomly generate a 2D/3D vector points map. self.OnMenuCmd v.random Perturb points Random location perturbations of GRASS vector points self.OnMenuCmd v.perturb Remove outliers in point sets Removes outliers from vector point data. self.OnMenuCmd v.outlier Test/training point sets Randomly partition points into test/train sets. self.OnMenuCmd v.kcv Update area attributes from raster Calculates univariate statistics from a GRASS raster map based on vector polygons and uploads statistics to new attribute columns. self.OnMenuCmd v.rast.stats Update point attributes from areas Uploads vector values at positions of vector points to the table. self.OnMenuCmd v.what.vect Update point attributes from raster Sample raster maps at point locations Uploads raster values at positions of vector points to the table. self.OnMenuCmd v.what.rast Sample raster neighborhood around points Samples a raster map at vector point locations. self.OnMenuCmd v.sample Reports and statistics Basic vector metadata Outputs basic information about a user-specified vector map layer. self.OnMenuCmd v.info Report topology by category Reports geometry statistics for vectors. self.OnMenuCmd v.report Upload or report topology Populate database values from vector features. self.OnMenuCmd v.to.db Univariate attribute statistics Calculates univariate statistics for attribute. Variance and standard deviation is calculated only for points if specified. self.OnMenuCmd v.univar Quadrat indices Indices for quadrat counts of sites lists. self.OnMenuCmd v.qcount Test normality Tests for normality for points. self.OnMenuCmd v.normal Imagery Develop images and groups Create/edit group Creates, edits, and lists groups and subgroups of imagery files. self.OnMenuCmd i.group Target group Targets an imagery group to a GRASS location and mapset. self.OnMenuCmd i.target Mosaic images Mosaics up to 4 images and extends colormap; creates map *.mosaic self.OnMenuCmd i.image.mosaic Manage image colors Color balance for RGB Auto-balancing of colors for LANDSAT images self.OnMenuCmd i.landsat.rgb HIS to RGB Hue-intensity-saturation (his) to red-green-blue (rgb) raster map color transformation function. self.OnMenuCmd i.his.rgb RGB to HIS Red-green-blue (rgb) to hue-intensity-saturation (his) raster map color transformation function self.OnMenuCmd i.rgb.his Rectify image or raster Rectifies an image by computing a coordinate transformation for each pixel in the image based on the control points self.OnMenuCmd i.rectify Basic RS processing MODIS Quality Flags Extract Modis Quality flags as raster values. self.OnMenuCmd i.modis.qc Latitude/longitude maps Creates Latitude or Longitude map. self.OnMenuCmd i.latlong Potential Sunshine Hours Creates Potential Sunshine Hours map. self.OnMenuCmd i.sunhours Albedo Albedo from Modis, Aster, Landsat, AVHRR. self.OnMenuCmd i.albedo Vegetation Indices 14 types of vegetation Indices. self.OnMenuCmd i.vi Emissivity Emissivity from NDVI. self.OnMenuCmd i.emissivity Brovey sharpening Brovey transform to merge multispectral and high-res panchromatic channels self.OnMenuCmd i.fusion.brovey Classify image Clustering input for unsupervised classification The resulting signature file is used as input for i.maxlik, to generate an unsupervised image classification. self.OnMenuCmd i.cluster Maximum likelihood classification (MLC) Classification is based on the spectral signature information generated by either i.cluster, i.class, or i.gensig. self.OnMenuCmd i.maxlik Sequential maximum a posteriori classification (SMAP) Performs contextual image classification using sequential maximum a posteriori (SMAP) estimation. self.OnMenuCmd i.smap Input for supervised MLC Generates statistics for i.maxlik from raster map layer. self.OnMenuCmd i.gensig Input for supervised SMAP Generate statistics for i.smap from raster map layer. self.OnMenuCmd i.gensigset Filter image Edge detection Zero-crossing "edge detection" raster function for image processing. self.OnMenuCmd i.zc Matrix/convolving filter Raster map matrix filter. self.OnMenuCmd r.mfilter.fp Histogram Generate histogram of image self.DispHistogram Spectral response displays spectral response at user specified locations in group or images self.OnMenuCmd i.spectral Tasseled cap vegetation index Tasseled Cap (Kauth Thomas) transformation for LANDSAT-TM data self.OnMenuCmd i.tasscap Transform image Canonical correlation Canonical components analysis (cca) program for image processing. self.OnMenuCmd i.cca Principal components Principal components analysis (pca) program for image processing. self.OnMenuCmd i.pca Fast Fourier Fast Fourier Transform (FFT) for image processing. self.OnMenuCmd i.fft Inverse Fast Fourier Inverse Fast Fourier Transform (IFFT) for image processing. self.OnMenuCmd i.ifft Atmospheric correction Performs atmospheric correction using the 6S algorithm. self.OnMenuCmd i.atcorr Report and statistics Bit pattern comparison Compares bit patterns with a raster map. self.OnMenuCmd r.bitpattern Kappa analysis Calculate error matrix and kappa parameter for accuracy assessment of classification result. self.OnMenuCmd r.kappa OIF for LandSat TM Calculates Optimum-Index-Factor table for LANDSAT TM bands 1-5, & 7 self.OnMenuCmd i.oif Volumes Develop volumes Manage 3D NULL values Explicitly create the 3D NULL-value bitmap file. self.OnMenuCmd r3.null Manage timestamp Print/add/remove a timestamp for a 3D raster map self.OnMenuCmd r3.timestamp 3D Mask Establishes the current working 3D raster mask. self.OnMenuCmd r3.mask 3D raster map calculator Map calculator for volumetric map algebra self.Disp3DMapCalculator Cross section Creates cross section 2D raster map from 3d raster map based on 2D elevation map self.OnMenuCmd r3.cross.rast Interpolate volume from points Interpolates point data to a G3D grid volume using regularized spline with tension (RST) algorithm. self.OnMenuCmd v.vol.rst Report and Statistics Basic volume metadata Outputs basic information about a user-specified 3D raster map layer. self.OnMenuCmd r3.info Database Database information Describe table Describes a table in detail. self.OnMenuCmd db.describe List columns List all columns for a given table. self.OnMenuCmd db.columns List drivers List all database drivers. self.OnMenuCmd db.drivers List tables Lists all tables for a given database. self.OnMenuCmd db.tables Manage databases Connect Prints/sets general DB connection for current mapset and exits. self.OnMenuCmd db.connect Login Sets user/password for driver/database. self.OnMenuCmd db.login Copy table Copy a table. Either 'from_table' (optionally with 'where') can be used or 'select' option, but not 'from_table' and 'select' at the same time. self.OnMenuCmd db.copy New table Creates and adds a new attribute table to a given layer of an existing vector map. self.OnMenuCmd v.db.addtable Remove table Drops an attribute table. self.OnMenuCmd db.droptable Add columns Adds one or more columns to the attribute table connected to a given vector map. self.OnMenuCmd v.db.addcol Change values Allows to update a column in the attribute table connected to a vector map. self.OnMenuCmd v.db.update Rename column Renames a column in the attribute table connected to a given vector map. self.OnMenuCmd v.db.renamecol Test Test database driver, database must exist and set by db.connect. self.OnMenuCmd db.test Query Query any table Selects data from table. self.OnMenuCmd db.select Query vector attribute data Prints vector map attributes. self.OnMenuCmd v.db.select SQL statement Executes any SQL statement. self.OnMenuCmd db.execute Vector database connections Reconnect vector to database Reconnects vectors to a new database. self.OnMenuCmd v.db.reconnect.all Set vector map - database connection Prints/sets DB connection for a vector map to attribute table. self.OnMenuCmd v.db.connect Help GRASS GIS help Display the HTML man pages of GRASS self.RunMenuCmd g.manual -i GRASS GIS GUI help Display the HTML man pages of GRASS self.RunMenuCmd g.manual wxGUI About GRASS GIS About GRASS GIS self.OnAboutGRASS