i.group - GRASS GIS manual

Note: This document is for an older version of GRASS GIS that has been discontinued. You should upgrade, and read the current manual page.

NAME

i.group - Creates, edits, and lists groups of imagery data.

KEYWORDS

imagery, map management

SYNOPSIS

i.group

i.group --help

i.group [-rlsg] group=name [subgroup=name] [input=name[,name,...]] [file=name] [--help] [--verbose] [--quiet] [--ui]

Flags:

-r: Remove selected files from specified group or subgroup
-l: List files from specified (sub)group
-s: List subgroups from specified group
-g: Print in shell script style
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

group=name [required]: Name of imagery group
subgroup=name: Name of imagery subgroup
input=name[,name,...]: Name of raster map(s) to include in group
file=name: Input file with one raster map name per line

DESCRIPTION
NOTES
- EXAMPLE
SEE ALSO
AUTHOR

DESCRIPTION

i.group allows the user to collect raster map layers in an imagery group by assigning them to user-named subgroups or other groups. This enables the user to run analyses on any combination of the raster map layers in a group. The user creates the groups and subgroups and selects the raster map layers that are to reside in them. Imagery analysis programs like g.gui.gcp, i.rectify, i.ortho.photo and others ask the user for the name of an imagery group whose data are to be analyzed. Imagery analysis programs like i.cluster and i.maxlik ask the user for the imagery group and imagery subgroup whose data are to be analyzed.

NOTES

The i.group options are only available for imagery map layers in the current LOCATION_NAME.

Subgroup names may not contain more than 12 characters.

EXAMPLE

This example runs in the "landsat" mapset of the North Carolina sample dataset. The following command creates a group and subgroup containing only the visible light bands of Landsat-7:

i.group group=vis_bands subgroup=vis_bands input=lsat7_2000_10,lsat7_2000_20,lsat7_2000_30

AUTHOR

Michael Shapiro, U.S.Army Construction Engineering Research Laboratory
Parser support: Bob Covill (Tekmap, Canada)

SOURCE CODE

Available at: i.group source code (history)

Latest change: Thursday Oct 01 17:35:27 2020 in commit: 744fcaefa6aa37121e72a9530e90b48fa07bef3a