On Jan 12, 2008 11:32 AM, Igor Brejc <[EMAIL PROTECTED]> wrote: > That would be an interesting thing to implement. It would involve > creating a union of circles (with radius of 12 NM) and then determining > the border of that union. If only I had the time... :)
I thin you'd approach it from the other way. Take a 12nm circle and push it against the coastline so it touches at a point. Then "roll" it along with the centre tracing a line, forming either an arc where it rotates around a point, or a straight line as it slides along an edge. Have a nice day, -- Martijn van Oosterhout <[EMAIL PROTECTED]> http://svana.org/kleptog/ _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk