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From grass-lists-owner@max.cecer.army.mil Fri Jan 21 09:47:31 1994
From: Subbarao Vedula <Subbarao.Vedula@eng.auburn.edu>
Date: Fri, 21 Jan 1994 11:33:59 -0600
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Hi,

I am trying to place buffer zones around streams. But the r.buffer programs is asking the maximum distance for each zone desired. But I would like to place buffer zones at a MINIMUM distance of 200 feet from streams.
Any idea how to do that?

Thanks

Subbarao Vedula

I'm not sure I understand exactly what you want. But here's a stab.
Create the 0-200 buffer in r.buffer. Then you will get 3 categories
in the output file: the category buffered from, the 0-200 buffer and
all areas greater than 200 ft. That third category is areas with a
minimum distance of 200 ft. If you did more buffers you could have
areas with minimum 200 ft, but not more than 400 ft, and minimum 400 ft, etc.

Sue Huse
CEDR - REGIS
University of California, Berkeley