keywords(1)

🎀 KEYWORDS 🎀

okay bestie, welcome to keywords(1) from the GRASS GIS User's Manual 💖 this is literally just the big alphabetical index of GRASS GIS modules, sorted by ~vibe~ (aka keyword), so when you're like "which module does the thing with the thing??" you can find your girl. every keyword is a heading, and under it lives the whole squad of modules that claim it. it's giving very organized, very cunty, we love an index ✨

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3D 🦋

three-dimensional everything, the z-axis is the main character. v.drape, v.extrude, v.hull, v.out.postgis, v.surf.rst, v.to.3d, v.to.points, v.vol.rst

ACCA 🌸

one module carrying the whole acronym. i.landsat.acca

accumulation 💧

stuff piling up over time, lowkey obsessed. r.series.accumulate, r.terraflow, r.watershed, t.rast.accdetect, t.rast.accumulate

actual evapotranspiration 🌱

the real deal evapotranspiration, no fake ones here. i.eb.eta

addons ✨

extra lil treats you can bolt on. g.extension

aerial 🛩️

photos from the sky bestie. g.gui.image2target, g.gui.photo2image

aggregation 🧺

gather it all up into fewer, bigger things. r.in.pdal, r.in.xyz, r.neighbors, r.patch, r.reclass.area, r.resamp.stats, r.series, r3.in.xyz, r3.neighbors, t.rast.aggregate.ds, t.rast.aggregate, t.rast.neighbors, t.rast.series, v.neighbors

albedo 🤍

how much light bounces off, reflectivity era. i.albedo

algebra 🧮

math but make it rasters and vectors, periodt. r.mapcalc, r.mapcalc.simple, r.mfilter, r.mode, r.neighbors, r.quantile, r.texture, r3.mapcalc, r3.neighbors, t.rast.algebra, t.rast.mapcalc, t.rast3d.algebra, t.rast3d.mapcalc, t.vect.algebra, v.neighbors

animation 🎬

make it move, make it cute. g.gui.animation, r.out.mpeg

area 📐

surface area girlies. m.measure, v.buffer, v.centroids, v.clip, v.dissolve, v.in.ascii, v.to.db, v.to.lines, v.type

area estimation 🧐

guessing the area but like, scientifically. r.surf.area

arrow ➡️

pointy directional indicators. d.northarrow, d.rast.arrow

articulation points 🔗

graph theory said hi. v.net.bridge

ASCII 🔤

plain text files, the original low-fi aesthetic. r.in.ascii, r.in.xyz, r.out.ascii, r.out.xyz, r3.in.ascii, r3.out.ascii, v.in.ascii, v.out.ascii

aspect 🧭

which way is it facing, honestly same question. r.slope.aspect

ASTER 🛰️

the satellite sensor bestie. i.albedo, i.aster.toar, r.in.aster

atmospheric correction 🌫️

removing the atmosphere's little filter, we don't want it. i.atcorr, i.landsat.toar

attribute columns 📊

the columns in your attribute table, iconic. v.info

attribute table 🗂️

the whole table situation, this list is LONG bestie buckle up. db.columns, db.connect, db.copy, db.createdb, db.databases, db.describe, db.dropcolumn, db.dropdb, db.droptable, db.execute, db.in.ogr, db.out.ogr, db.select, db.tables, db.test, db.univar, g.gui.dbmgr, t.vect.db.select, v.class, v.db.addcolumn, v.db.addtable, v.db.connect, v.db.dropcolumn, v.db.droprow, v.db.droptable, v.db.join, v.db.reconnect.all, v.db.renamecolumn, v.db.select, v.db.univar, v.db.update, v.distance, v.to.db, v.univar, v.vect.stats, v.what.rast, v.what.rast3, v.what.strds, v.what.vect

attribute update 🔄

changing the values in place, glow up for your table. v.db.update

attributes 🏷️

the tags and data hanging off your features. v.reclass

autocorrelation 🌀

spatial self-similarity moment. r.random.cells

AVHRR 📡

another satellite sensor, yes another one. i.albedo

azimuth 🧭

the angle bestie, the angle. v.to.db

background 🖼️

what's behind everything, the unsung hero. d.background

bartlett 🪟

a window function for filtering, math girlies rise. r.resamp.filter

bicubic 🧊

smooth resampling energy. r.resamp.bspline, r.resamp.interp

bilinear 📈

also smooth resampling energy. r.resamp.bspline, r.resamp.interp

binning 🗑️

throwing points into bins, tidy. r.in.pdal, r.in.xyz, r3.in.xyz

biomass 🌿

plant mass, photosynthesis queen. i.biomass

biophysical parameters 🧬

the numbers that describe living things. i.vi

blackman 🪟

another window function, the filter girls are thriving. r.resamp.filter

bounding box 📦

the rectangle that contains everything, simple as. v.to.db

box 🪟

yet another filter window shape. r.resamp.filter

brightness temperature 🌡️

temperature but from radiance, glow. i.aster.toar, i.landsat.toar

Brovey 💅

a pansharpening method with a name that eats. i.pansharpen

buffer ⭕

adding space around stuff, personal space era. r.buffer, r.buffer.lowmem, r.circle, v.buffer, v.parallel

canonical components analysis 📉

CCA's fancier cousin. i.cca

cartography 🗺️

making maps pretty, the artistic portion of the program. d.barscale, d.graph, d.grid, d.legend, d.legend.vect, d.linegraph, d.northarrow, d.rast.leg, d.text, d.title, d.vect.chart, d.vect.thematic

category 🔢

integer labels on your data, the little numbers. r.category, v.category, v.to.db

CCA 📉

canonical components analysis, abbreviated. i.cca

centrality measures 🕸️

how important is each node in the network, main character metrics. v.net.centrality

centroid 🎯

the center point of a polygon, the middle child. v.centroids

chart maps 📊

maps with charts on them, data visualization slay. d.vect.chart

choropleth map 🎨

shaded by value, the classic map look. d.vect.thematic

circle ⚪

circles. round. perfect. r.circle, v.buffer

citing 📝

how to cite GRASS, academic bestie behavior. g.version

classification 🏷️

putting pixels into categories, deciding who belongs where. g.gui.iclass, i.cluster, i.gensig, i.gensigset, i.maxlik, i.segment, i.signatures, i.smap, r.kappa, v.class

clip ✂️

cutting data to fit inside something else. v.clip, v.overlay

cloud detection ☁️

finding clouds so you can ignore them, honestly relatable. i.landsat.acca

clump 🫧

grouping touching cells together. v.cluster

clumps 🫧

same vibe, plural. r.clump, r.object.geometry, r.volume

cluster 🍇

finding groups in your data, friend groups but spatial. v.cluster

color table 🌈

the palette that tells your raster how to look. d.colortable, r.colors, r.colors.out, r.colors.stddev, r.what.color, r3.colors, r3.colors.out, t.rast.colors, v.colors, v.colors.out

color transformation 🎨

swapping between color spaces, a wardrobe change. d.his, i.his.rgb, i.rgb.his, r.his

colors 🌈

listing and enhancing your colors, the aesthetic council. d.colorlist, i.colors.enhance

compactness 🧩

how chunky vs how stringy a shape is. v.to.db

components 🧩

connected pieces of a network. v.net.components

composite 🖼️

blending layers into one, collage energy. r.blend, r.composite

compression 🗜️

making files smaller, Marie Kondo for rasters. r.compress

computational region 📏

THE region. the one that decides what actually gets computed. respect her. g.region

connection settings 🔌

how you connect to your database bestie. db.connect, db.drivers, db.login

connectivity 🔗

can you get from here to there. v.net.connectivity

contour 〰️

lines of equal value over time, temporal contour era. t.rast.contour

contours 〰️

same but the regular raster kind. r.contour

conversion 🔁

changing data from one format or type to another, shapeshifting. r.in.ascii, r.in.pdal, r.in.xyz, r.out.xyz, r.to.rast3, r.to.rast3elev, r.to.vect, r3.in.ascii, r3.in.xyz, r3.out.ascii, r3.to.rast, t.rast.to.rast3, t.rast.to.vect, v.to.rast, v.to.rast3

convolution 🌀

smushing a kernel across your data, math core. r.resamp.filter

coordinates 📍

x, y, and sometimes z. the location of things. v.to.db

copy 📋

duplicating stuff, ctrl+c ctrl+v but in GRASS. g.copy, t.copy

copying 📦

packing and unpacking datasets to move them around. r.pack, r.unpack, v.pack, v.unpack

copyright ©️

legal stuff, cite your sources bestie. g.version

correlation 📈

do these two things move together? gossip. d.correlate

cost allocation 💸

who's closest to the cheap path. r.cost, r.walk, v.net.alloc, v.net.iso

cost surface 🗺️

the map of how expensive it is to travel, budget era. r.cost, r.drain, r.path, r.walk

create 🆕

making a new temporal dataset from scratch. t.create

create project 🏗️

building a whole new project/location, fresh start. g.proj, r.in.gdal, t.rast.import, t.vect.import, v.in.ogr

cumulative costs 🧾

the running total of travel cost, receipts. r.cost, r.spreadpath, r.walk

curvature 🌊

how bendy the terrain is. r.slope.aspect

data 📂

downloading locations and projects, getting the goods. g.download.location, g.download.project

DBF 🗄️

that old-school attribute table format. v.db.reconnect.all

decimation ✂️

removing points to simplify, less is more. v.decimate

densification ➕

adding points to make things smoother, more is more. v.split

deposition 🏔️

where sediment lands, drop it like it's hot. r.sim.sediment

depressions 🕳️

the dips in your terrain that water loves. r.fill.dir

diagram 📉

visualizing relationships, chart moment. d.correlate, d.polar

difference ➖

what's in one thing but not the other. v.overlay

digitizer 🖊️

drawing and editing vector stuff by hand. g.gui.rdigit, g.gui.vdigit

displacement ↔️

moving features around during generalization. v.generalize

dissolve 🫠

melting features together, bye boundaries. v.dissolve, v.extract

distance 📏

how far apart are these things, the eternal question. d.geodesic, d.rhumbline, m.cogo, m.measure, r.distance, r.grow.distance, r.grow, v.distance

diversity index 🌺

how diverse is your landscape, biodiversity slay. r.li.dominance, r.li.pielou, r.li.renyi, r.li.richness, r.li.shannon, r.li.simpson

download ⬇️

getting files from the internet, the modern way. g.download.location, g.download.project, g.extension

drainage 🚰

where the water goes. r.watershed

DXF 📐

that CAD interchange format. v.in.dxf, v.out.dxf

E00 📦

ArcInfo interchange format, vintage. v.in.e00

edges 🔪

detecting boundaries and sharp changes. i.zc, v.lidar.edgedetection

editing ✏️

changing your data, glow-ups and touch-ups. d.rast.edit, g.gui.rdigit, g.gui.vdigit, v.edit, v.type

elevation ⛰️

height above sea level, the classic. d.shade, r.fillnulls, r.in.aster, r.param.scale, r.plane, r.relief, r.shade

emissivity 🔥

how much energy a surface emits, radiating. i.emissivity

energy balance ⚖️

the whole incoming-vs-outgoing energy situation. i.eb.eta, i.eb.evapfr, i.eb.hsebal01, i.eb.netrad, i.eb.soilheatflux, i.emissivity

erase 🧽

clearing the display, clean slate. d.background

erosion 🏜️

soil getting carried away, rip topsoil. r.sim.sediment, r.uslek, r.usler

evaporative fraction 💧

the fraction that evaporates, math. i.eb.evapfr, i.eb.hsebal01

evapotranspiration 💨

water leaving plants and soil into the air. i.evapo.mh, i.evapo.pm, i.evapo.pt, i.evapo.time

export 📤

getting your data OUT, farewell. d.out.file, d.to.rast, db.out.ogr, r.colors.out, r.external.out, r.out.ascii, r.out.bin, r.out.gdal, r.out.gridatb, r.out.mat, r.out.mpeg, r.out.png, r.out.pov, r.out.ppm, r.out.ppm3, r.out.vrml, r.out.vtk, r.out.xyz, r.pack, r3.colors.out, r3.out.ascii, r3.out.bin, r3.out.netcdf, r3.out.v5d, r3.out.vtk, t.rast.export, t.rast.out.vtk, t.vect.export, v.colors.out, v.db.select, v.external.out, v.out.ascii, v.out.dxf, v.out.ogr, v.out.postgis, v.out.pov, v.out.svg, v.out.vtk, v.pack

extensions 🧩

add-ons, the DLC of GRASS. g.extension.all, g.extension

extent 📐

how far your data reaches, the bounds bestie. g.region, r.info, r3.info, t.info, v.info

exterior 🕳️

the outside part of polygons with holes. v.fill.holes

external 🔗

linking to data that lives outside the database, no copying needed. r.external, r.external.out, v.external, v.external.out

extract 🍋

pulling out a subset, cherry-picking. t.rast.extract, t.rast3d.extract, t.vect.extract, v.decimate, v.extract, v.outlier

Fast Fourier Transform 〰️

FFT, the frequency domain legend. i.fft, i.ifft

fill 🎨

filling in the blanks. d.background, v.fill.holes

fill sinks 🕳️

filling the depressions so water can flow, plumbing era. r.fill.dir

filter 🔍

smoothing, sharpening, selecting — the whole filter menu. r.mfilter, r.neighbors, r.resamp.filter, r3.neighbors, v.outlier

FIR 📶

finite impulse response, filter theory bestie. r.resamp.filter

fire 🔥

simulating fire spread, dramatic. r.ros, r.spread, r.spreadpath

flood 🌊

water level rising, the lake is lake-ing. r.lake

flow 💦

water and flow routing across the landscape. r.sim.water, r.terraflow, v.net.flow

focal statistics 🎯

stats from the neighborhood around each cell. r.neighbors, r3.neighbors

FPAR 🌿

fraction of photosynthetically active radiation absorbed, say that five times fast. i.biomass

fractal 🌀

self-similar terrain, infinite detail core. r.surf.fractal, v.to.db

frame 🖼️

splitting the display into panels. d.frame

fusion 💫

merging datasets, fusion dance. i.pansharpen

gauss 🔔

gaussian filter window, smooth operator. r.resamp.filter

gazetteer 📖

geographic names database, place-name lookup. v.in.geonames

GCP 📌

ground control points, the anchors for georeferencing. g.gui.gcp, g.gui.image2target, g.gui.photo2image, i.ortho.transform, m.transform, v.transform

generalization 🎈

simplifying geometry so it's less fussy. v.decimate, v.generalize

geometry 📐

the BIG one, every module that touches shape. g.gui.gcp, g.gui.image2target, g.gui.photo2image, i.image.mosaic, i.ortho.photo, i.rectify, r.circle, r.patch, r.region, r.thin, r.to.vect, v.buffer, v.build, v.build.polylines, v.clean, v.delaunay, v.drape, v.edit, v.extrude, v.fill.holes, v.generalize, v.hull, v.in.ogr, v.in.region, v.mkgrid, v.overlay, v.parallel, v.patch, v.perturb, v.rectify, v.report, v.segment, v.select, v.split, v.to.3d, v.to.db, v.to.lines, v.to.points, v.transform, v.type, v.univar, v.voronoi

geomorphology 🏔️

landform shapes and terrain character. r.param.scale

geomorphons 🗻

classifying terrain into landform types, the 10 shapes. r.geomorphon

georectification 🧭

making imagery line up with the real world. g.gui.gcp, g.gui.image2target, g.gui.photo2image

gradient 📉

the rate of change, slope but 3D. r3.gradient

graphical modeler 🎛️

building workflows by clicking boxes, drag-and-drop slay. g.gui.gmodeler

graphics 🖥️

the whole display and rendering situation. d.background, d.erase, d.frame, d.his, d.info, d.mon, d.rast, d.redraw, d.rgb, d.vect, m.nviz.image, m.nviz.script, wxpyimgview, ximgview

graticule 🕸️

the lat/long grid lines overlaid on your map. d.grid

great circle 🌍

the shortest path on a sphere, globe-trotter. d.geodesic

grid 🔲

drawing grids, making grids. d.grid, v.mkgrid

groundwater flow 🌊

water moving underground, sneaky. r.gwflow, r3.gwflow

grow 🌱

expanding outward from features. v.buffer

GUI 🪟

every graphical interface module, the clickable squad. g.gui.animation, g.gui.datacatalog, g.gui.dbmgr, g.gui.gcp, g.gui.gmodeler, g.gui, g.gui.iclass, g.gui.image2target, g.gui.mapswipe, g.gui.photo2image, g.gui.psmap, g.gui.rdigit, g.gui.rlisetup, g.gui.timeline, g.gui.tplot, g.gui.vdigit

hamming 🪟

hamming window for filtering, yes another one. r.resamp.filter

hann 🪟

hann window, the filter window parade continues. r.resamp.filter

hazard ⚠️

danger modeling, be careful bestie. r.lake, r.ros, r.spread

heatmap 🔥

density hot spots, where it's poppin'. v.kernel

help 🆘

reading the manual, we love a self-aware moment. g.manual

hermite 🪟

hermite window, last of the window girls in this stretch. r.resamp.filter

hexagon ⬡

hexagonal grids, honeycomb aesthetic. v.mkgrid

hillshade ⛰️

shaded relief so terrain looks 3D, chef's kiss. d.shade, r.relief, r.shade

HIS 🎨

hue-intensity-saturation color space, the acronym crew. d.his, i.his.rgb, i.pansharpen, i.rgb.his, r.his

histogram 📊

counting values into bins and drawing the bars. d.histogram

history 🕰️

the record of what happened to your data. r.info, v.info

hotspot 🔥

concentrated density, the place to be. v.kernel

hydrology 💧

EVERYTHING water, the whole watershed. r.basins.fill, r.carve, r.drain, r.fill.dir, r.flow, r.gwflow, r.lake, r.path, r.sim.sediment, r.sim.water, r.solute.transport, r.stream.extract, r.terraflow, r.topidx, r.topmodel, r.uslek, r.usler, r.water.outlet, r.watershed, r3.flow, r3.gwflow

IDW 📍

inverse distance weighting, interpolation classic. r.fill.stats, r.surf.idw, v.surf.idw

IHS 🎨

intensity-hue-saturation, same color family as HIS, different letter order, we don't make the rules. d.his, i.his.rgb, i.pansharpen, i.rgb.his, r.his

image collections 🖼️

i.band.library, r.semantic.label

imagery quality assessment 📸

i.modis.qc

import 📥

db.in.ogr, g.download.location, g.download.project, i.in.spotvgt, r.external, r.import, r.in.ascii, r.in.aster, r.in.bin, r.in.gdal, r.in.gridatb, r.in.mat, r.in.pdal, r.in.png, r.in.poly, r.in.srtm, r.in.wms, r.in.xyz, r.proj, r.unpack, r3.in.ascii, r3.in.bin, r3.in.v5d, r3.in.xyz, t.rast.import, t.vect.import, v.external, v.import, v.in.ascii, v.in.db, v.in.dxf, v.in.e00, v.in.geonames, v.in.lines, v.in.mapgen, v.in.ogr, v.in.pdal, v.in.wfs, v.proj, v.unpack

installation 🛠️

g.extension.all, g.extension

interpolation 🌐

r.fill.stats, r.fillnulls, r.resamp.bspline, r.resamp.interp, r.series.interp, r.surf.contour, r.surf.idw, t.rast.gapfill, v.surf.bspline, v.surf.idw, v.surf.rst, v.vol.rst

intersection 🔀

v.overlay

isolines 🗺️

v.net.iso

kernel density 📊

v.kernel

kernel filter 🧮

r.resamp.filter

lanczos 🪄

r.resamp.filter, r.resamp.interp

land flux 🌿

i.emissivity

land surface temperature 🌡️

i.modis.qc

landform 🏔️

r.param.scale

Landsat 🛰️

i.albedo, i.landsat.acca, i.landsat.toar, i.tasscap

landscape structure analysis 🌳

g.gui.rlisetup, r.li.cwed, r.li.dominance, r.li.edgedensity, r.li.mpa, r.li.mps, r.li.padcv, r.li.padrange, r.li.padsd, r.li.patchdensity, r.li.patchnum, r.li.pielou, r.li.renyi, r.li.richness, r.li.shannon, r.li.shape, r.li.simpson

latitude 🧭

r.latlong

layer 🗂️

v.category, v.db.connect

legend 📜

d.legend, d.legend.vect, d.rast.leg, d.vect.thematic

length 📏

v.to.db

level1 1️⃣

d.vect, g.region, r.random, v.cluster, v.decimate, v.edit, v.external, v.in.ascii, v.in.dxf, v.info, v.patch, v.perturb, v.random, v.rectify

license 📄

g.version

LIDAR 🛸

r.in.pdal, r.in.xyz, r3.in.xyz, v.decimate, v.in.pdal, v.lidar.correction, v.lidar.edgedetection, v.lidar.growing, v.outlier, v.surf.bspline

line ➖

v.buffer, v.build.polylines, v.dissolve, v.edit, v.in.ascii, v.in.lines, v.parallel, v.to.lines, v.to.points, v.type

line of sight 👀

r.viewshed

linear reference system 🛤️

v.lrs.create, v.lrs.label, v.lrs.segment, v.lrs.where

list 📝

g.list, t.list, t.rast.list, t.rast3d.list, t.vect.list

longitude 🌍

r.latlong

LOS 👁️

r.viewshed

machine vision geomorphometry 🤖

r.geomorphon

manual 📖

g.manual

map annotations 🗒️

d.northarrow, d.rast.arrow, d.rast.num

map management 🗺️

g.access, g.copy, g.dirseps, g.filename, g.findetc, g.findfile, g.gui.datacatalog, g.list, g.remove, g.rename, i.group, i.target, r.compress, r.null, r3.null, t.create, t.list, t.rast.list, t.rast3d.list, t.register, t.remove, t.rename, t.unregister, t.vect.list

mask 🎭

r.mask, r3.mask

Maximum Likelihood Classification 🧠

i.gensig, i.maxlik

measurement 📐

m.measure

merge 🤝

r.patch, t.merge

metadata 🏷️

r.describe, r.info, r.region, r.support, r.timestamp, r3.info, r3.support, r3.timestamp, t.connect, t.info, t.select, t.support, t.upgrade, v.info, v.support, v.timestamp

miscellaneous 🎲

m.cogo, m.measure, m.nviz.image, m.nviz.script, m.proj, m.transform

MLC 🧬

i.gensig, i.maxlik

model 🧪

r.ros, r.sim.sediment, r.sim.water, r.spread, r.topmodel

MODIS 🌎

i.albedo, i.modis.qc, i.tasscap

modules 🧩

g.search.modules

monitors 🖥️

d.erase, d.frame, d.info, d.mon, d.redraw

mosaic 🧱

r.buildvrt

mosaicking 🖼️

i.image.mosaic, r.patch

multispectral 🌈

i.oif, i.spectral

NDVI 🌱

i.in.spotvgt, i.vi

nearest neighbor 🎯

r.resamp.interp, r.resample

neighbor 👯

r.neighbors, r3.neighbors

net radiation ☀️

i.eb.netrad

netCDF 📦

r3.out.netcdf

network 🕸️

d.path, v.lrs.create, v.lrs.label, v.lrs.segment, v.lrs.where, v.net.alloc, v.net.allpairs, v.net.bridge, v.net.centrality, v.net.components, v.net.connectivity, v.net.distance, v.net.flow, v.net, v.net.iso, v.net.path, v.net.salesman, v.net.spanningtree, v.net.steiner, v.net.timetable, v.net.visibility

network generalization 🧬

v.generalize

network maintenance 🔧

v.net

no-data 🚫

r.mask, r.null, r3.mask, r3.null

no-data filling 🕳️

r.fill.stats, r.fillnulls, r.resamp.bspline, t.rast.gapfill, v.surf.rst, v.vol.rst

node 🔘

v.build.polylines, v.edit, v.segment, v.split, v.to.points

null data 🫥

r.mask, r.null, r3.mask, r3.null

object recognition 🔍

i.segment

OGC web services 🌐

r.in.wms, v.in.wfs

OGC WFS 📡

v.in.wfs

OGC WMS 🗺️

r.in.wms

OGC WMTS 🧭

r.in.wms

OGR 🧰

v.external, v.external.out, v.in.ogr, v.out.ogr

orthorectify 📐

i.ortho.camera, i.ortho.elev, i.ortho.init, i.ortho.photo, i.ortho.rectify, i.ortho.target, i.ortho.transform

output 📤

d.out.file, db.out.ogr, r.external.out, r.out.ascii, r.out.bin, r.out.gdal, r.out.gridatb, r.out.mat, r.out.mpeg, r.out.png, r.out.pov, r.out.ppm, r.out.ppm3, r.out.vrml, r.out.vtk, r.out.xyz, r3.out.ascii, r3.out.netcdf, r3.out.v5d, r3.out.vtk, t.rast.out.vtk, v.external.out, v.out.ascii, v.out.dxf, v.out.ogr, v.out.postgis, v.out.pov, v.out.svg, v.out.vtk

overland flow 🌊

r.sim.water

paint labels 🎨

d.labels, v.label, v.label.sa

parallel ⚡

r.mfilter, r.neighbors, r.patch, r.resamp.filter, r.resamp.interp, r.series, r.sim.sediment, r.sim.water, r.slope.aspect, r.sun, r.univar, t.rast.univar, t.rast3d.univar, v.surf.rst

patch index 🧩

r.li.cwed, r.li.edgedensity, r.li.mpa, r.li.mps, r.li.padcv, r.li.padrange, r.li.padsd, r.li.patchdensity, r.li.patchnum, r.li.shape

patching 🩹

r.patch

PCA 🧬

i.pansharpen, i.pca

percentile 📊

r.quantile, r.stats.quantile

perimeter 📏

v.fill.holes, v.to.db

permission 🔐

g.access

photo 📷

g.gui.image2target, g.gui.photo2image

plot 📈

d.profile, g.gui.timeline, g.gui.tplot

PNG 🖼️

r.in.png, r.out.png

point 📍

v.edit, v.in.ascii, v.in.lines, v.segment, v.to.lines, v.to.points, v.type

point cloud ☁️

v.cluster

point density 📍

v.kernel

point pattern 🎯

v.kcv, v.mkgrid, v.normal, v.perturb, v.qcount, v.random

points 📌

v.decimate, v.in.db, v.kcv, v.normal

polar 🧭

m.cogo

position 📍

d.where, r.what, v.what, v.what.rast, v.what.rast3, v.what.strds, v.what.vect

PostGIS 🐘

v.external, v.external.out, v.out.postgis

principal components analysis 🧠

i.pca

printing 🖨️

g.gui.psmap, ps.map

profile 📊

d.profile, r.profile, r.transect, r3.cross.rast, v.profile

projection 🗺️

g.proj, m.proj, r.import, r.latlong, r.proj, v.import, v.proj

proximity 📍

r.grow.distance, r.grow

quantile 📊

r.quantile, r.stats.quantile

quantization 🎚️

r.quant

querying ❓

d.where, i.spectral, r.what.color, r.what, v.rast.stats, v.what, v.what.rast, v.what.rast3, v.what.strds, v.what.vect

radiance 💡

i.aster.toar, i.atcorr, i.landsat.toar

radiometric conversion 🔄

i.aster.toar, i.atcorr, i.landsat.toar

rainfall 🌧️

r.usler

random 🎲

r.random.cells, r.random, r.random.surface, r.surf.gauss, r.surf.random, v.extract, v.perturb, v.random

rasterization 🔲

v.to.rast

rate of spread 🔥

r.ros

reclass 🔁

r.clump, r.object.geometry

reclassification 🔄

r.reclass, r.recode, v.reclass

recode categories 🏷️

r.recode

rectify 📐

i.rectify, v.rectify

reflectance 🌟

i.albedo, i.aster.toar, i.atcorr, i.landsat.toar, i.modis.qc

register 📝

t.register

regression 📉

r.regression.line, r.regression.multi

relief 🏔️

d.shade, r.relief, r.shade

remove 🗑️

g.remove, t.remove

rename ✏️

g.rename, t.rename, v.db.renamecolumn

resample 🔄

r.resamp.bspline, r.resamp.filter, r.resamp.interp, r.resamp.rst, r.resamp.stats, r.resample

rescale 📏

r.rescale.eq, r.rescale

resolution 🔍

g.region

RGB 🌈

d.his, d.rgb, i.colors.enhance, i.his.rgb, i.rgb.his, r.composite, r.his, r.rgb

rhumbline 🧭

d.rhumbline

ring ⭕

v.fill.holes

RST 🌀

r.resamp.rst, v.surf.rst, v.vol.rst

salesman 🚚

v.net.salesman

sampling 🎲

d.where, r.random.cells, r.random, t.rast.what, t.sample, t.vect.observe.strds, t.vect.what.strds, v.drape, v.extrude, v.kcv, v.random, v.rast.stats, v.sample, v.what.rast, v.what.rast3, v.what.strds, v.what.vect

satellite 🛰️

i.albedo, i.aster.toar, i.atcorr, i.colors.enhance, i.landsat.acca, i.landsat.toar, i.modis.qc

scripts 📜

g.dirseps, g.filename, g.findetc, g.findfile, g.gisenv, g.message, g.tempfile

search 🔎

g.list, g.search.modules

search path 🧭

g.mapsets

SEBAL 🌾

i.eb.eta, i.eb.evapfr, i.eb.hsebal01, i.eb.netrad, i.eb.soilheatflux

sediment flow 🏞️

r.sim.sediment

segment ✂️

v.segment, v.split

segmentation 🧩

i.segment, i.smap

select 👆

t.vect.db.select, v.decimate, v.extract, v.outlier

semantic label 🏷️

i.band.library, r.semantic.label

Sentinel 🛰️

i.tasscap

separate 🔀

r.rgb

series 📚

r.patch, r.series.accumulate, r.series, r.series.interp, t.rast.series

settings ⚙️

d.colorlist, d.font, d.fontlist, g.gisenv, g.mapset, g.mapsets, g.region, t.connect

shadow 🌑

r.sun, r.sunmask

sharpen 🔪

i.pansharpen

shift 🔄

t.shift

shortest path 🛣️

d.geodesic, d.path, v.net.allpairs, v.net.distance, v.net.path, v.net.timetable, v.net.visibility

shrink 🔽

v.buffer

sides 📐

v.to.db

signatures ✍️

g.gui.iclass, i.cluster, i.gensig, i.gensigset, i.signatures

simple 🧁

r.mapcalc.simple

simple features 🧱

v.out.postgis

simplification ✨

v.generalize

sinc 🪄

r.resamp.filter

sink 🕳️

r.fill.dir, r.terraflow

sinuous 〰️

v.to.db

skeleton 🦴

v.voronoi

slope ⛰️

r.slope.aspect, v.to.db

SMAP 🗺️

i.gensigset, i.smap

smoothing 🧴

v.generalize

snapping 📎

t.snap, v.clean, v.in.ogr

• soil — r.sim.sediment, r.sim.water, r.uslek, r.usler
• soil heat flux — i.eb.soilheatflux
• soil moisture — i.eb.evapfr, i.eb.hsebal01
• solar — r.horizon, r.sun, r.sunhours, r.sunmask
• solute transport — r.solute.transport
• spanning tree — v.net.spanningtree
• spatial query — v.overlay, v.select
• splines — r.fillnulls, r.resamp.bspline, r.resamp.rst, v.surf.rst
• split — r.rgb
• SPOT — i.in.spotvgt
• spread — r.ros, r.spread

---

• SQL — db.copy, db.createdb, db.databases, db.dropdb, db.execute, db.select, v.db.select
• SQLite — v.db.reconnect.all
• SRTM — r.in.srtm

---

• statistics — okay bestie this one is a lot, brace yourself: d.correlate, d.histogram, db.univar, i.cca, i.oif, r.clump, r.coin, r.covar, r.cross, r.in.pdal, r.in.xyz, r.kappa, r.mfilter, r.mode, r.neighbors, r.object.geometry, r.quant, r.quantile, r.reclass.area, r.regression.line, r.regression.multi, r.report, r.statistics, r.stats, r.stats.quantile, r.stats.zonal, r.support.stats, r.surf.area, r.texture, r.univar, r3.in.xyz, r3.neighbors, r3.stats, r3.univar, t.rast.univar, t.rast3d.univar, t.vect.univar, v.class, v.db.univar, v.kcv, v.neighbors, v.normal, v.outlier, v.perturb, v.qcount, v.random, v.rast.stats, v.report, v.univar 💅
• steiner tree — v.net.steiner
• stratified random sampling — v.random
• stream network — r.stream.extract, r.watershed
• stream power index — r.watershed
• sun energy — r.sun, r.sunhours
• sun position — r.horizon, r.sunhours, r.sunmask
• supervised classification — g.gui.iclass, i.gensig, i.gensigset, i.smap
• support — g.message, g.tempfile, g.version
• surface — r.contour, r.fill.stats, r.fillnulls, r.random.surface, r.resamp.bspline, r.surf.area, r.surf.contour, r.surf.fractal, r.surf.gauss, r.surf.idw, r.surf.random, v.surf.bspline, v.surf.idw, v.surf.rst, v.vol.rst
• surface information — v.drape, v.what.rast, v.what.rast3

---

• Tasseled Cap transformation — i.tasscap
• terrain — i.topo.corr, r.param.scale, r.relief, r.slope.aspect
• terrain patterns — r.geomorphon
• texture — r.texture
• tiling — r.tile, r.tileset, r3.retile
• time — the temporal girlies, all of them: r.timestamp, r3.timestamp, t.copy, t.create, t.info, t.list, t.merge, t.rast.accdetect, t.rast.accumulate, t.rast.aggregate.ds, t.rast.aggregate, t.rast.algebra, t.rast.colors, t.rast.contour, t.rast.export, t.rast.extract, t.rast.gapfill, t.rast.import, t.rast.list, t.rast.mapcalc, t.rast.neighbors, t.rast.out.vtk, t.rast.series, t.rast.to.rast3, t.rast.to.vect, t.rast.univar, t.rast.what, t.rast3d.algebra, t.rast3d.extract, t.rast3d.list, t.rast3d.mapcalc, t.rast3d.univar, t.register, t.remove, t.rename, t.sample, t.select, t.shift, t.snap, t.support, t.topology, t.unregister, t.upgrade, t.vect.algebra, t.vect.db.select, t.vect.export, t.vect.extract, t.vect.import, t.vect.list, t.vect.observe.strds, t.vect.univar, t.vect.what.strds, v.timestamp, v.what.strds
• time management — t.merge, t.shift, t.snap
• timestamp — r.timestamp, r3.timestamp, v.timestamp
• topographic correction — i.topo.corr
• topographic index — r.topidx, r.watershed
• topology — t.topology, v.build.all, v.build, v.build.polylines, v.clean, v.generalize, v.in.ogr, v.info, v.out.postgis
• transect — r.profile, r.transect, v.profile
• transformation — i.fft, i.ifft, i.ortho.transform, i.pca, i.tasscap, m.proj, m.transform, r.proj, v.proj, v.transform
• triangulation — v.delaunay, v.voronoi
• type casting — v.db.update

---

• union — v.overlay
• unit test — test.r3flow, test.raster3d.lib
• univariate statistics — r.resamp.stats, r.univar, r3.univar, v.rast.stats, v.univar, v.vect.stats
• unregister — t.unregister
• user interface — g.gui
• variables — g.gisenv
• vectorization — r.to.vect
• vegetation — i.modis.qc
• vegetation index — i.vi
• version — g.version
• vertex — v.build.polylines, v.edit, v.segment, v.split, v.to.points
• viewshed — r.viewshed
• virtual raster — r.buildvrt
• visibility — v.net.visibility
• visualization — d.shade, m.nviz.image, m.nviz.script, r.shade, ximgview
• volume — r.volume, r3.stats
• voxel — the 3D roster, no skips: r.to.rast3, r.to.rast3elev, r3.cross.rast, r3.flow, r3.gradient, r3.gwflow, r3.in.ascii, r3.in.bin, r3.in.v5d, r3.in.xyz, r3.info, r3.mask, r3.mkdspf, r3.neighbors, r3.null, r3.out.ascii, r3.out.bin, r3.out.netcdf, r3.out.v5d, r3.out.vtk, r3.retile, r3.stats, r3.support, r3.timestamp, r3.to.rast, t.rast.to.rast3, t.rast3d.algebra, t.rast3d.extract, t.rast3d.list, t.rast3d.mapcalc, t.rast3d.univar, v.to.rast3, v.vol.rst
• VRML — r.out.vrml
• VTK — r.out.vtk, r3.out.vtk, t.rast.out.vtk, v.out.vtk

---

• watershed — r.basins.fill, r.water.outlet, r.watershed
• wetness — r.topidx
• workflow — g.gui.gmodeler
• Worldview — i.tasscap
• yield — i.biomass
• zonal statistics — r.statistics, r.stats.quantile, r.stats.zonal, r.univar, v.rast.stats, v.vect.stats

---

okay and that's the whole keyword dictionary, alphabet done, we ate 🎀 if you wanna go wander somewhere else instead:

• Main index
• Topics index
• Keywords index
• Graphical index
• Full index

---

and that's a wrap on keywords(1) bestie 💖 this whole index lives in the GRASS GIS 8.4.2 Reference Manual, copyright © 2003-2025 GRASS Development Team, and this page belongs to GRASS 8.4.2. go build something iconic with it, no cap ✨🦋