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NAME

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

KEYWORDS

display

SYNOPSIS

d.rast.leg
d.rast.leg help
d.rast.leg [-fns] map=string [num_of_lines=integer] [rast=string] [title=string] [position=float] [--verbose] [--quiet]

Flags:

-f
Flip legend
-n
Omit entries with missing label
-s
Draw smooth gradient
--verbose
Verbose module output
--quiet
Quiet module output

Parameters:

map=string
Name of raster map to display
num_of_lines=integer
Number of lines to appear in the legend
rast=string
Name of raster map to generate legend from
title=string
Name of raster map to print in legend
position=float
Position of vertical map-legend separator (in percent)
Default: 80

DESCRIPTION

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.

NOTES

The legend may be flipped with the -f flag.

If the num_of_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 num_of_lines minus 1 categories with the rest being truncated.

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

The user may specify a second raster map with the rast 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".

EXAMPLE

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

SEE ALSO

d.legend, d.erase, d.rast

AUTHORS

Jianping Xu, Scott Madry, Rutgers University
Markus Neteler

Last changed: $Date: 2011-09-04 06:23:30 -0700 (Sun, 04 Sep 2011) $


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