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... Hamish _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
