The way I would approach this is have a buffer layer where 1 = 100' from
steams and 2 = 200' from steams. Then I would use r.mapcalc and its
logical if, then statements to access slope coverage and buffer coverage to
develope the third coverage, the "weighted buffer".
Regards,
Bruce Wylie
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Subj: Weighted Buffers?Return-Path: <grass-lists-owner@max.cecer.army.mil>
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Subject: Weighted Buffers?
Message-ID: <"PL-IXSFJG"*@sprint.com>I have a friend with a question who is not on the network yet, but
here is the question:
I need to know if GRASS can do weighted buffers, and if so what
command(s) you use to do it. Example: a buffer around streams
where if slope is greater than 40% and the ground cover is trees, the
buffer should be 200', but if the slope is less than 40% slope and
the ground cover is grass, the buffer should be 100'. Clear as mud?
Thanks for any input!!