Hi Bernard, My scenario was based upon the way I saw someone else implement it. And I don’t have miles or kilometers and don't need them for my purposes.
Yea it will either be a square or a circle not sure yet. Does anyone know if there is an updated v17 English version of the Math4D component? If not I’ll have to translate the dialog labels dealing with longitude/latitude/distance calculations. Appreciate, John… > You say "Show me all cities within 4 minutes from this longitude/latitude." > > I propose to search in a square around your location, ie make a search lat +- > 4 miles and long +- 4 miles. > You will get a few occurrences and then refine the search to a circle with > geodesic functions. > > Cordialement, > > Bernard Escaich ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
