[GRASS-user] Specific points of a surface

[Carlos Grohmann]

Since I'm already asking a lot today, why not another one?

In SAGA, there is a module that calculates 'Specific points of a
surface', among the results there is one called "mark highest
neighbour". Given a distance-to-features raster, it will give
something like the 'medial axes' of features. Any ideas on how to get
such map in GRASS?

reference of SAGA command:

Peucker, T.K. and Douglas, D.H., 1975:
'Detection of surface-specific points by local parallel processing of
discrete terrain elevation data',
Computer Graphics and Image Processing, 4, 375-387

cheers

Carlos

-- 
Carlos Henrique Grohmann - Geologist D.Sc.
a.k.a. Guano - Linux User #89721
ResearcherID: A-9030-2008

http://digitalelevation.blogspot.com

http://www.igc.usp.br/pessoais/guano
_________________
Can’t stop the signal.