> > Hi list, > > a short question..is there a way to calculate visibity analysis in > > GRASS ?(similat to that of ArcINFO) > > > > try r.los. > > http://grass.itc.it/grass60/manuals/html60_user/r.los.html also r.cva: http://www.ucl.ac.uk/~tcrnmar/ search the mailing list archives for an updated GRASS 6 version. Hamish