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. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user