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d.rast.leg - Displays a raster map and its legend on a graphics window


display, cartography, legend


d.rast.leg --help
d.rast.leg [-fns] map=name [lines=integer] [raster=name] [--help] [--verbose]
[--quiet] [--ui]

Flip legend

Omit entries with missing label

Draw smooth gradient

Print usage summary

Verbose module output

Quiet module output

Force launching GUI dialog

map=name [required]
Name of raster map to display

Number of lines to appear in the legend

Name of input raster map to generate legend from


d.rast.leg shows a raster map along with its legend. It first clears the entire screen,
then divides it into a main (left) and a minor (right) frames, and displays a raster map
in the main frame and the map legend in the minor frame. The main frame remains active
when the program finishes.


The legend may be flipped with the -f flag.

If the lines parameter is not given then the legend frame will display as many lines as
number of categories in the map, otherwise, it will display the first lines minus 1
categories with the rest being truncated.

The user may adjust the lines parameter or the size of graphics window to get an
appropriate result.

The user may specify a second raster map with the raster parameter from which the legend
is generated. This is useful to visualize (time) series of raster maps with a common
static legend instead of the default dynamic legend.

To remove all frames when clearing the display, use d.erase -f.


In this example, the polar diagram of the ’aspect’ angle map in the North Carolina sample
dataset location is generated:
g.region raster=landclass96 -p
d.rast.leg landclass96

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