GRASS

GRASS GIS 6.2.3 Reference Manual

Geographic Resources Analysis Support System, commonly referred to as GRASS, is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.

This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU GPL'ed), image processing and geographic information system (GIS).

Quick Introduction

vector commands:
v.buffer v.buffer
v.build.all v.build.all
v.build v.build
v.build.polylines v.build.polylines
v.category v.category
v.centroids Adds missing centroids to closed boundaries
v.clean v.clean
v.convert.all v.convert.all
v.convert v.convert
v.db.addcol Adds one or more columns to the attribute table connected to a given vector map
v.db.addtable Creates and adds a new attribute table to a given layer of an existing vector map.
v.db.connect v.db.connect
v.db.droptable removes existing attribute table of a vector map
v.db.reconnect.all Reconnect vectors to a new database
v.db.select v.db.select
v.db.update Allows to assign a new value to a column in the attribute table connected to a given map
v.delaunay v.delaunay
v.digit v.digit
v.dissolve Dissolve boundaries between adjacent areas sharing a common category number or attribute
v.distance v.distance
v.drape v.drape
v.external v.external
v.extract v.extract
v.extrude v.extrude
v.hull v.hull
v.in.ascii v.in.ascii
v.in.db v.in.db
v.in.dxf v.in.dxf
v.in.e00 Import of E00 file into a vector map.
v.in.garmin Upload Waypoints, Routes, and Tracks from a Garmin GPS receiver into a vector map.
v.in.gns Imports US-NGA GEOnet Names Server (GNS) country files into a GRASS vector points map
v.in.gpsbabel Import waypoints, routes, and tracks from a GPS receiver or GPS download file into a vector map.
v.in.mapgen Import Mapgen or Matlab vector maps into GRASS.
v.in.ogr v.in.ogr
v.in.region v.in.region
v.in.sites.all v.in.sites.all
v.in.sites v.in.sites
v.info v.info
v.kcv v.kcv
v.kernel v.kernel
v.label v.label
v.lidar.correction v.lidar.correction
v.lidar.edgedetection v.lidar.edgedetection
v.lidar.growing v.lidar.growing
v.lrs.create v.lrs.create
v.lrs.label v.lrs.label
v.lrs.segment v.lrs.segment
v.lrs.where v.lrs.where
v.mkgrid v.mkgrid
v.neighbors v.neighbors
v.net.alloc v.net.alloc
v.net v.net
v.net.iso v.net.iso
v.net.path v.net.path
v.net.salesman v.net.salesman
v.net.steiner v.net.steiner
v.normal v.normal
v.out.ascii v.out.ascii
v.out.dxf v.out.dxf
v.out.ogr v.out.ogr
v.out.pov v.out.pov
v.out.vtk v.out.vtk
v.outlier v.outlier
v.overlay v.overlay
v.parallel v.parallel
v.patch v.patch
v.perturb v.perturb
v.proj v.proj
v.qcount v.qcount
v.random v.random
v.rast.stats Calculates univariate statistics from a GRASS raster map based on vector polygons and uploads statistics to new attribute columns
v.reclass v.reclass
v.report Reports geometry statistics for vectors.
v.sample v.sample
v.segment v.segment
v.select v.select
v.split v.split
v.surf.bspline v.surf.bspline
v.surf.idw v.surf.idw
v.surf.rst v.surf.rst
v.to.db v.to.db
v.to.points v.to.points
v.to.rast v.to.rast
v.to.rast3 v.to.rast3
v.transform v.transform
v.type v.type
v.univar v.univar
v.univar.sh Calculates univariate statistics on selected table column for a GRASS vector map
v.vol.rst v.vol.rst
v.voronoi v.voronoi
v.what v.what
v.what.rast v.what.rast
v.what.vect Uploads vector values at positions of vector points to the table


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© 2003-2007 GRASS Development Team