On Sun, 2007-07-08 at 19:54 +1200, Hamish wrote: > Amagine wrote: > > Hello, I am trying to extract peak points from a digital elevation > > map. > > > > I would like to be able to regulate the following parameters: > > > > Minimum height of peak > > Minimum drop of surrounding peaks > > Minimum radius from surrounding peaks > > summit points > > optional hierarchy... > > > > Are there any tools in GRASS that may be able to do such an > > extraction? > > see wish about calculating topographic prominence: > http://thread.gmane.org/gmane.comp.gis.grass.user/19166/focus=19173 > > linked wikipedia article: "The underlying mathematical theory is called > "Surface Network Modeling," and is closely related to Morse Theory." > > if there is any interested topogapher in the house...
This may also be of interest: http://www.peaklist.org/theory/theory.html -- 73, de Brad KB8UYR/6 <rez touchofmadness com> _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
