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NAME - Allows creation and/or modification of raster map layer support files.


raster, metadata

SYNOPSIS --help [-snd] map=name [title=phrase] [history=phrase] [units=string] [vdatum=string] [source1=phrase] [source2=phrase] [description=phrase] [raster=string] [loadhistory=name] [savehistory=name] [--overwrite] [--help] [--verbose] [--quiet] [--ui]


Update statistics (histogram, range)

Create/reset the null file

Delete the null file

Allow output files to overwrite existing files

Print usage summary

Verbose module output

Quiet module output

Force launching GUI dialog


Name of raster map

Title for resultant raster map

Text to append to the next line of the map’s metadata file

Text to use for map data units

Text to use for map vertical datum

Text to use for data source, line 1

Text to use for data source, line 2

Text to use for data description or keyword(s)

Raster map from which to copy category table

Text file from which to load history

Text file in which to save history

DESCRIPTION allows the user to create and/or edit raster map support information. Editing of raster map color tables, category labels, header, history, and title is supported. Category labels can also be copied from another raster map.


These examples are based on the North Carolina dataset, more specfically the landuse raster map. Copy the landuse map to the current mapset

g.copy raster=landuse,my_landuse

Update statistics -s map=my_landuse

Update Title map=my_landuse title="Landuse copied"

Append to History Metadata map=my_landuse history="Copied from PERMANENT mapset"

Update Units Display map=my_landuse units=meter


If metadata options such as title or history are given the module will run non-interactively. If only the map name is given will run interactively within a terminal shell and the user with be prompted for input.

Freeform metadata information is stored in a "hist" file which may be appended to by using the history option. Currently this is limited to 50 lines of text with a maximum line length of 78 characters. Any input larger than this will be wrapped to the next line. All other metadata strings available as standard options are limited to 79 characters.


r.category, r.describe,, r.null, r.region,, r.timestamp


Micharl Shapiro, CERL: Original author
Brad Douglas: GRASS 6 Port
M. Hamish Bowman: command line enhancements
Markus Neteler: category copy from other map


Available at: source code (history)

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© 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual

GRASS 7.8.5