DESCRIPTION
v.label.sa makes a label-file from a GRASS vector map
with labels created from attributes in the attached table. The labels are
placed in as optimal place as possible. The label file has the same syntax
as the one created by v.label
EXAMPLE
North Carolina example:
# get font names:
d.font -L
v.label.sa roadsmajor labels=roads_labels column=ROAD_NAME color=red \
background=white size=250 font=Vera
# set region:
g.region rast=lsat7_2002_10 -p
# display:
d.rgb b=lsat7_2002_10 g=lsat7_2002_20 r=lsat7_2002_30
d.vect roadsmajor col=yellow
d.labels roads_labels

Road labeling with v.label.sa (Raleigh, North Carolina, USA, area)
REFERENCES
Edmondson, Christensen, Marks and Shieber: A General Cartographic
Labeling Algorithm, Cartographica, Vol. 33, No. 4, Winter 1996, pp. 13-23
The algorithm works by the principle of Simulated Annealing.
SEE ALSO
d.label
d.labels
ps.map
Wikipedia article on simulated annealing
AUTHOR
Wolf Bergenheim
Last changed: $Date: 2011-11-08 01:42:51 -0800 (Tue, 08 Nov 2011) $