OpenGeofiction
Is there a way to separate the the national boundary from the coastline? I wanted to clean up the boundaries in Orinoco to make it look like it has a 20 mile buffer instead of the mess I have now. I don’t want to flood anyone by making edits to the coastline.
Discussion
Comment from thilo on 8 June 2014 at 18:58
IMO the best method is as follows:
Create a copy of the existing boundary relation. Convert one of them into a “land area” relation. To do this, replace the tags “boundary=administrative” and “type=boundary” by “land_area=administrative” and “type=multipolygon”. Apart from this, leave it unchanged. This step is not strictly necessary, but it makes my life a bit easier whenever it comes to generating the overview map. Also it comes handy if you ever want to calculate the size of the land area of your country.
If you are not familiar with boundary relations, read this article: osm.wiki/Relation:boundary
Remove all coastlines from the other relation (that one which still has “type=boundary”), so that it consists only of land boundaries.
Draw the maritime boundaries, tag them with “boundary=administrative” and “maritime=yes”.
Add the maritime boundary segments to the “type=boundary” relation. You now should have two relations, one consisting of the coastlines and land borders, and the other one containing all “outer” borders, be they on land or on the open sea. Obviously, the land border segments must be part of both relations.
Comment from Easky30 on 17 June 2014 at 12:08
Thanks for the info.