r.support.1grass - Man Page

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


raster, metadata


r.support --help
r.support [-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


map=name [required]

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


r.support 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

r.support -s map=my_landuse

Update Title

r.support map=my_landuse title="Landuse copied"

Append to History Metadata

r.support map=my_landuse history="Copied from PERMANENT mapset"

Update Units Display

r.support 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 r.support 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.

See Also

r.category, r.describe, r.info, r.null, r.region, r.report, 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

Source Code

Available at: r.support source code (history)

Main index | Raster index | Topics index | Keywords index | Graphical index | Full index

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


GRASS 7.8.5 GRASS GIS User's Manual