I created control lines perpendicular on the coast and used these to find the nodes for the 12-nm line, where the distance to other country was less than 24 nm I used the same technique to find the mereidan line between the countries. I did this along the entire coast of Brazil. I will need to redo it with a script and a position database for baseline, 12nm, 24nm and eez
I used JOSM, as I can move around on the map freely, and get lengths of lines as I create them (12nm = 22224m) -- On Fri, 20 Feb 2009 23:41:26 +0000, Thomas Wood <[email protected]> wrote: > I just tagged up the one I found in the database, I attempted to use > GIS software to create a section where it misses a scottish island, > but failed after 2-3 days of playing, I can't recall who put the data > in originally. > > I'd be interested in seeing any code put into svn for others to use. > > > On 20/02/2009, Adrian Frith <[email protected]> wrote: >> For those of you who have been adding the 12-mile "territorial waters" >> line: did you calculate that data by offsetting the coastline/baseline? >> And if so, how did you do it? I mean: what software did you use, and >> how? >> >> Thanks, >> Adrian >> >> >> _______________________________________________ >> talk mailing list >> [email protected] >> http://lists.openstreetmap.org/listinfo/talk >> -- Brgds Aun Johnsen via Webmail _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk

