DESCRIPTION
r.wateroutlet.lessmem is a modified version of
r.water.outlet and requires
about one third of memory compared to the original module. Input drainage
direction information is stored as 4-bit segments in the buffer and output
basin result is stored as 1-bit data. Because of heavy bitwise operations,
there may be some performance penalty depending on the size of the input map.
Other than memory management, this module uses the same interface and algorithm
in r.water.outlet, so please refer
to r.water.outlet for more details.
SEE ALSO
r.water.outlet
AUTHOR
Huidae Cho
based on r.water.outlet
Last changed: $Date$