section 1grass · User commands 💻

C

• cairodriver(1grass)✨

D

• d.background(1grass)Fills the graphics display frame with user defined color.✨
• d.barscale(1grass)Displays a barscale on the graphics monitor.✨
• d.colorlist(1grass)Outputs a list of all available display colors.✨
• d.colortable(1grass)Displays the color table associated with a raster map layer.✨
• d.correlate(1grass)Prints a graph of the correlation between raster maps (in pairs).✨
• d.erase(1grass)Erases the contents of the active graphics display frame with user defined color.✨
• d.font(1grass)Selects the font in which text will be displayed on the user’s graphics monitor.✨
• d.fontlist(1grass)Lists the available fonts.✨
• d.frame(1grass)Manages display frames on the user’s graphics monitor.✨
• d.geodesic(1grass)Displays a geodesic line, tracing the shortest distance between two geographic points along a great circle, in a longitude/latitude data set.✨
• d.graph(1grass)Program for generating and displaying simple graphics on the display monitor.✨
• d.grid(1grass)Overlays a user-specified grid in the active display frame on the graphics monitor.✨
• d.his(1grass)Displays the result obtained by combining hue, intensity, and saturation (HIS) values from user-specified input raster map layers.✨
• d.histogram(1grass)Displays a histogram in the form of a pie or bar chart for a user-specified raster map.✨
• d.info(1grass)Displays information about the active display monitor. Display monitors are maintained by d.mon.✨
• d.labels(1grass)Displays text labels (created with v.label) to the active frame on the graphics monitor.✨
• d.legend(1grass)Displays a legend for a 2D or 3D raster map in the active frame of the graphics monitor.✨
• d.legend.vect(1grass)Displays a vector legend in the active graphics frame.✨
• d.linegraph(1grass)Generates and displays simple line graphs in the active graphics monitor display frame.✨
• d.mon(1grass)Controls graphics display monitors from the command line.✨
• d.northarrow(1grass)Displays a north arrow on the graphics monitor.✨
• d.out.file(1grass)Saves the contents of the active display monitor to a graphics file.✨
• d.path(1grass)Finds shortest path for selected starting and ending node.✨
• d.polar(1grass)Draws polar diagram of angle map such as aspect or flow directions✨
• d.profile(1grass)Plots profile of a transect.✨
• d.rast(1grass)Displays user-specified raster map in the active graphics frame.✨
• d.rast.arrow(1grass)Draws arrows representing cell aspect direction for a raster map containing aspect data.✨
• d.rast.edit(1grass)Edits cell values in a raster map.✨
• d.rast.leg(1grass)Displays a raster map and its legend on a graphics window✨
• d.rast.num(1grass)Overlays cell category values on a raster map displayed in the active graphics frame.✨
• d.redraw(1grass)Redraws the content of currently selected monitor.✨
• d.rgb(1grass)Displays three user-specified raster maps as red, green, and blue overlays in the active graphics frame.✨
• d.rhumbline(1grass)Displays the rhumbline joining two longitude/latitude coordinates.✨
• d.shade(1grass)Drapes a color raster over an shaded relief or aspect map.✨
• d.text(1grass)Draws text in the active display frame on the graphics monitor using the current font.✨
• d.title(1grass)Create a TITLE for a raster map in a form suitable for display with d.text.✨
• d.to.rast(1grass)Saves the contents of the active display monitor to a raster map.✨
• d.vect(1grass)Displays user-specified vector map in the active graphics frame.✨
• d.vect.chart(1grass)Displays charts of vector data in the active frame on the graphics monitor.✨
• d.vect.thematic(1grass)Displays a thematic vector map in the active graphics frame.✨
• d.what.rast(1grass)Allows the user to interactively query raster map layers at user-selected locations.✨
• d.what.vect(1grass)Allows the user to interactively query vector map layers at user-selected locations.✨
• d.where(1grass)Identifies the geographic coordinates associated with point locations given in display coordinates.✨
• database(1grass)✨
• database_graphical(1grass)✨
• databaseintro(1grass)✨
• db.columns(1grass)List all columns for a given table.✨
• db.connect(1grass)Prints/sets general DB connection for current mapset.✨
• db.copy(1grass)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.✨
• db.createdb(1grass)Creates an empty database.✨
• db.databases(1grass)Lists all databases for a given driver and location.✨
• db.describe(1grass)Describes a table in detail.✨
• db.drivers(1grass)Lists all database drivers.✨
• db.dropcolumn(1grass)Drops a column from selected attribute table.✨
• db.dropdb(1grass)Removes an existing database.✨
• db.droptable(1grass)Drops an attribute table.✨
• db.execute(1grass)Executes any SQL statement. For SELECT statements use ’db.select’.✨
• db.in.ogr(1grass)Imports attribute tables in various formats.✨
• db.login(1grass)Sets user/password for DB driver/database.✨
• db.out.ogr(1grass)Exports attribute tables into various formats.✨
• db.select(1grass)Selects data from attribute table. Performs SQL query statement(s).✨
• db.tables(1grass)Lists all tables for a given database.✨
• db.test(1grass)Test database driver, database must exist and set by db.connect.✨
• db.univar(1grass)Calculates univariate statistics on selected table column.✨
• display(1grass)✨
• display_graphical(1grass)✨
• displaydrivers(1grass)✨

F

• full_index(1grass)✨

G

• g.access(1grass)Controls access to the current mapset for other users on the system. If no option given, prints current status.✨
• g.cairocomp(1grass)Overlays multiple X Pixmaps.✨
• g.copy(1grass)Creates copies of maps and other elements Copies available data files in the current mapset search path to the user’s current mapset.✨
• g.dirseps(1grass)Internal GRASS utility for converting directory separator characters. Converts any directory separator characters in the input string to or from native host format, and writes the changed path to…✨
• g.download.location(1grass)Download GRASS project (location) from the web Get GRASS project from an URL or file path✨
• g.download.project(1grass)Download GRASS project from the web Get GRASS project from an URL or file path✨
• g.extension(1grass)Maintains GRASS Addons extensions in local GRASS installation. Downloads and installs extensions from GRASS Addons repository or other source into the local GRASS installation or removes installed…✨
• g.extension.all(1grass)Rebuilds or removes all locally installed GRASS Addons extensions. By default only extensions built against different GIS Library are rebuilt.✨
• g.filename(1grass)Prints GRASS data base file names.✨
• g.findetc(1grass)Searches for GRASS support files.✨
• g.findfile(1grass)Searches for GRASS data base files and sets variables for the shell.✨
• g.gisenv(1grass)Outputs and modifies the user’s current GRASS variable settings. Prints all defined GRASS variables if no option is given.✨
• g.gui(1grass)Launches a GRASS graphical user interface (GUI) session. Optionally updates default user interface settings.✨
• g.gui.animation(1grass)Tool for animating a series of raster and vector maps or a space time raster or vector dataset.✨
• g.gui.datacatalog(1grass)Tool for browsing, modifying and managing GRASS maps.✨
• g.gui.dbmgr(1grass)Launches graphical attribute table manager.✨
• g.gui.gcp(1grass)Georectifies a map and allows managing Ground Control Points.✨
• g.gui.gmodeler(1grass)Graphical Modeler. Allows interactively creating, editing and managing models.✨
• g.gui.iclass(1grass)Tool for supervised classification of imagery data. Generates spectral signatures for an image by allowing the user to outline regions of interest.✨
• g.gui.image2target(1grass)Georectifies a map and allows managing Ground Control Points for 3D correction.✨
• g.gui.mapswipe(1grass)Interactively compares two maps by swiping a visibility bar.✨
• g.gui.photo2image(1grass)Corrects scanning distortions of a paper photo.✨
• g.gui.psmap(1grass)Tool for creating hardcopy map outputs.✨
• g.gui.rdigit(1grass)Interactive editing and digitizing of raster maps.✨
• g.gui.rlisetup(1grass)Configuration tool for r.li modules.✨
• g.gui.timeline(1grass)Allows comparing temporal datasets by displaying their temporal extents in a plot.✨
• g.gui.tplot(1grass)Plots the values of temporal datasets.✨
• g.gui.vdigit(1grass)Interactive editing and digitization of vector maps.✨
• g.list(1grass)Lists available GRASS data base files of the user-specified data type optionally using the search pattern.✨
• g.manual(1grass)Displays the manual pages of GRASS modules.✨
• g.mapset(1grass)Changes or reports current mapset. Optionally, creates new mapset or lists available mapsets in given project (location).✨
• g.mapsets(1grass)Modifies or reports the user’s current mapset search path. Affects the user’s access to data existing under the other mapsets in the current project.✨
• g.message(1grass)Prints a message, warning, progress info, or fatal error in the GRASS way. This module should be used in scripts for messages served to user.✨
• g.mkfontcap(1grass)Generates the font configuration file by scanning various directories for fonts.✨
• g.parser(1grass)Provides full parser support for GRASS scripts.✨
• g.pnmcomp(1grass)Overlays multiple PPM image files.✨
• g.ppmtopng(1grass)Converts between PPM/PGM and PNG image formats.✨
• g.proj(1grass)Prints or modifies GRASS projection information files (in various co-ordinate system descriptions). Can also be used to create new GRASS projects.✨
• g.region(1grass)Manages the boundary definitions for the geographic region.✨
• g.remove(1grass)Removes data base element files from the user’s current mapset using the search pattern.✨
• g.rename(1grass)Renames data base element files in the user’s current mapset.✨
• g.search.modules(1grass)Search in GRASS modules using keywords✨
• g.tempfile(1grass)Creates a temporary file and prints it’s file name.✨
• g.version(1grass)Displays GRASS version info. Optionally also prints build or copyright information.✨
• general(1grass)✨
• general_graphical(1grass)✨
• graphical_index(1grass)✨
• grass(1grass)✨
• grass-dbf(1grass)✨
• grass-mesql(1grass)✨
• grass-mysql(1grass)✨
• grass-odbc(1grass)✨
• grass-ogr(1grass)✨
• grass-pg(1grass)✨
• grass-sqlite(1grass)✨
• grass_database(1grass)✨
• guimodules_graphical(1grass)✨

H

• helptext(1grass)✨
• htmldriver(1grass)✨

I

• i.albedo(1grass)Computes broad band albedo from surface reflectance.✨
• i.aster.toar(1grass)Calculates Top of Atmosphere Radiance/Reflectance/Brightness Temperature from ASTER DN.✨
• i.atcorr(1grass)Performs atmospheric correction using the 6S algorithm. 6S - Second Simulation of Satellite Signal in the Solar Spectrum.✨
• i.band.library(1grass)Prints available semantic label information used for multispectral data.✨
• i.biomass(1grass)Computes biomass growth, precursor of crop yield calculation.✨
• i.cca(1grass)Canonical components analysis (CCA) program for image processing.✨
• i.cluster(1grass)Generates spectral signatures for land cover types in an image using a clustering algorithm. The resulting signature file is used as input for i.maxlik, to generate an unsupervised image…✨
• i.colors.enhance(1grass)Performs auto-balancing of colors for RGB images.✨
• i.eb.eta(1grass)Actual evapotranspiration for diurnal period (Bastiaanssen, 1995).✨
• i.eb.evapfr(1grass)Computes evaporative fraction and root zone soil moisture.✨
• i.eb.hsebal01(1grass)Computes sensible heat flux iteration SEBAL 01.✨
• i.eb.netrad(1grass)Net radiation approximation (Bastiaanssen, 1995).✨
• i.eb.soilheatflux(1grass)Soil heat flux approximation (Bastiaanssen, 1995).✨
• i.emissivity(1grass)Computes emissivity from NDVI, generic method for sparse land.✨
• i.evapo.mh(1grass)Computes evapotranspiration calculation modified or original Hargreaves formulation, 2001.✨
• i.evapo.pm(1grass)Computes potential evapotranspiration calculation with hourly Penman-Monteith.✨
• i.evapo.pt(1grass)Computes evapotranspiration calculation Priestley and Taylor formulation, 1972.✨
• i.evapo.time(1grass)Computes temporal integration of satellite ET actual (ETa) following the daily ET reference (ETo) from meteorological station(s).✨
• i.fft(1grass)Fast Fourier Transform (FFT) for image processing.✨
• i.gensig(1grass)Generates statistics for i.maxlik from raster map.✨
• i.gensigset(1grass)Generates statistics for i.smap from raster map.✨
• i.group(1grass)Creates, edits, and lists groups of imagery data.✨
• i.his.rgb(1grass)Transforms raster maps from HIS (Hue-Intensity-Saturation) color space to RGB (Red-Green-Blue) color space.✨
• i.ifft(1grass)Inverse Fast Fourier Transform (IFFT) for image processing.✨
• i.image.mosaic(1grass)Mosaics several images and extends colormap.✨
• i.in.spotvgt(1grass)Imports SPOT VGT NDVI data into a raster map.✨
• i.landsat.acca(1grass)Performs Landsat TM/ETM+ Automatic Cloud Cover Assessment (ACCA).✨
• i.landsat.toar(1grass)Calculates top-of-atmosphere radiance or reflectance and temperature for Landsat MSS/TM/ETM+/OLI✨
• i.maxlik(1grass)Classifies the cell spectral reflectances in imagery data. Classification is based on the spectral signature information generated by either i.cluster, g.gui.iclass, or i.gensig.✨
• i.modis.qc(1grass)Extracts quality control parameters from MODIS QC layers.✨
• i.oif(1grass)Calculates Optimum-Index-Factor table for spectral bands✨
• i.ortho.camera(1grass)Select and modify the imagery group camera reference file.✨
• i.ortho.elev(1grass)Select or modify the target elevation model.✨
• i.ortho.init(1grass)Interactively creates or modifies entries in a camera initial exposure station file for imagery group referenced by a sub-block.✨
• i.ortho.photo(1grass)Menu driver for the photo imagery programs.✨
• i.ortho.rectify(1grass)Orthorectifies an image by using the image to photo coordinate transformation matrix.✨
• i.ortho.target(1grass)Select or modify the imagery group target.✨
• i.ortho.transform(1grass)Computes a coordinate transformation based on the control points.✨
• i.pansharpen(1grass)Image fusion algorithms to sharpen multispectral with high-res panchromatic channels✨
• i.pca(1grass)Principal components analysis (PCA) for image processing.✨
• i.rectify(1grass)Rectifies an image by computing a coordinate transformation for each pixel in the image based on the control points.✨
• i.rgb.his(1grass)Transforms raster maps from RGB (Red-Green-Blue) color space to HIS (Hue-Intensity-Saturation) color space.✨
• i.segment(1grass)Identifies segments (objects) from imagery data.✨
• i.signatures(1grass)Manage imagery classification signature files✨
• i.smap(1grass)Performs contextual image classification using sequential maximum a posteriori (SMAP) estimation.✨
• i.spectral(1grass)Displays spectral response at user specified locations in group or images.✨
• i.target(1grass)Targets an imagery group to a GRASS location and mapset.✨
• i.tasscap(1grass)Performs Tasseled Cap (Kauth Thomas) transformation.✨
• i.topo.corr(1grass)Computes topographic correction of reflectance.✨
• i.vi(1grass)Calculates different types of vegetation indices. Uses red and nir bands mostly, and some indices require additional bands.✨
• i.zc(1grass)Zero-crossing "edge detection" raster function for image processing.✨
• imagery(1grass)✨
• imagery_graphical(1grass)✨
• imageryintro(1grass)✨
• index(1grass)✨

K

• keywords(1grass)✨

L

• lrs(1grass)Toolset for LRS (Linear Referencing System)✨

M

• m.cogo(1grass)A simple utility for converting bearing and distance measurements to coordinates and vice versa. It assumes a cartesian coordinate system✨
• m.measure(1grass)Measures the lengths and areas of features.✨
• m.nviz.image(1grass)Creates a 3D rendering of GIS data. Renders surfaces (raster data), 2D/3D vector data, and volumes (3D raster data) in 3D.✨
• m.nviz.script(1grass)Creates fly-through script to run in NVIZ.✨
• m.proj(1grass)Converts coordinates from one projection to another (cs2cs frontend).✨
• m.transform(1grass)Computes a coordinate transformation based on the control points.✨
• manual_gallery(1grass)✨
• miscellaneous(1grass)✨
• miscellaneous_graphical(1grass)✨

P

• parser_standard_options(1grass)✨
• pngdriver(1grass)✨
• postscript(1grass)✨
• postscript_graphical(1grass)✨
• projectionintro(1grass)✨
• ps.map(1grass)Produces hardcopy PostScript map output.✨