Pages du manuel Linux : Commandes destinées aux utilisateurs / grass

db.columns
list all columns for a given table.
db.connect
Connect to the database through DBMI.
db.copy
Copy a table. Either 'from_table' (optionaly with 'where') can be used or 'select' option, but not 'from_table' and 'select' at the same time.
db.describe
Describe a table (in detail).
db.drivers
List all database drivers.
db.execute
Execute any SQL statement.
db.login
Set user/password for driver/database.
db.select
Select data from database.
db.tables
List all tables for a given database.
db.test
Test database driver, database must exist and set by db.connect.
display
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.
displaydrivers
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).
full_index
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.
g.ask
Prompts the user for the names of GRASS data base files.
g.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.
g.filename
Prints GRASS data base file names.
g.findfile
Searches for GRASS data base files and sets variables for the shell.
g.gisenv
Outputs and modifies the user's current GRASS variable settings.
g.list
Lists available GRASS data base files of the user-specified data type to standard output.
g.manual
display the HTML man pages of GRASS
g.mapset
Change current mapset
g.mapsets
Modifies the user's current mapset search path, affecting the user's access to data existing under the other GRASS mapsets in the current location.
g.mlist
Apply regular expressions and wildcards to g.list
g.mremove
Apply regular expressions and wildcards to g.remove
g.parser
g.parser test script
g.proj
Prints and manipulates GRASS projection information files.
g.region
Program to manage the boundary definitions for the geographic region.
g.remove
Removes data base element files from the user's current mapset.
g.rename
To rename data base element files in the user's current mapset.
g.setproj
g.setproj
g.tempfile
Creates a temporary file and prints the file name.
g.version
Displays version and copyright information.
general
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.
helptext
Commonly referred to as GRASS, this is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/map production, spatial modelling, 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.
i.cca
Canonical components analysis (cca) program for image processing.
i.class
i.class
i.cluster
An imagery function that 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 classification.
i.fft
Fast Fourier Transform (FFT) for image processing.
i.fusion.brovey
Brovey transform to merge multispectral and high-res panchromatic channels
i.gensig
Generates statistics for i.maxlik from raster map layer.
i.gensigset
Generate statistics for i.smap from raster map layer.
i.group
Creates and edits groups and subgroups of imagery files.
i.his.rgb
Hue-intensity-saturation (his) to red-green-blue (rgb) raster map color transformation function.
i.ifft
Inverse Fast Fourier Transform (ifft) for image processing.
i.image.mosaic
Mosaics up to 4 images and extends colormap; creates map *.mosaic
i.maxlik
An imagery function that classifies the cell spectral reflectances in imagery data based on the spectral signature information generated by either i.cluster, i.class, or i.gensig.
i.oif
Calculates Optimum-Index-Factor table for LANDSAT TM bands 1-5, & 7
i.ortho.photo
i.ortho.photo
i.pca
Principal components analysis (pca) program for image processing.
i.points