Dear Julio, > Some examples of coastline boundaries that I found in Europe: > http://osm.org/go/xVvgL5p-- http://osm.org/go/xX2ApwZz- > http://osm.org/go/eq...@o- > > If it is not the "right" way to do it or there is a better way to do it, > please let me know.
Most countries in Europe (e.g. UK, Belgium, the Netherlands, Germany and others) have the territorial waters as national boundaries. There had been a longer discussion some time ago http://lists.openstreetmap.org/pipermail/dev/2008-October/012291.html http://lists.openstreetmap.org/pipermail/dev/2008-October/012340.html It sums up to: - the correct boundary would be the baseline, see http://en.wikipedia.org/wiki/Territorial_waters but nobody uses it, because it is difficult to obtain. - the territorial waters line is much simpler than the coastline: it has 10-100 times fewer nodes and it is much smoother. - the territorial waters often have the look and feel of the boundary: a ferry to an island near the coast doesn't have passport controls like when you cross a national border For this reason I would strongly encourage you to use the territorial waters like most countries in Europe. If you need a tool the generate these territorial water lines automatically, have a look at sweep-brim.c in http://wmaz.math.uni-wuppertal.de/olbricht/osm/osm-boundaries-source.tgz Feel free to ask if you need any help. Cheers, Roland _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
