[GRASS-user] Vector from Raster Problems (r.stream)

[stephen sefick]

I have compiled and used Jarek's stream order script and the results
look to be satisfactory- good job!.  I am having a hard time creating
vectors from this raster representation.  r.thin -> r.to.vect creates
lots of erroneous squares that I believe are there as an artifact of
the larger stream networks.  The lower order (smaller) streams look
fine, but when you start getting to the higher order streams +5  I
think the r.thin algorithm may have problems delineating a stream.  Is
there a way around this?  I would be happy with a line that ran
through the middle of the stream for now.  Some trick converting to
points and then to lines?  Or something along those lines.  Is there a
way to connect centroids?  I have made an area map of the streams
raster- can I connect the areas together?  Thanks for any help.
thanks,

-- 
Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis