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The administrative boundaries of Iran are outdated and the source map that has been used before wasn't reliable. Recently I got an up to date file for administrative boundaries of Iran. Now the question is how I should I update the map? should I remove all the previous boundaries and upload my own file? If the level 2 boundaries are different between my won file and the boundaries currently shown on the map, what should I do? What is the correct approach for updating administrative boundaries of a country? |
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In general I would recommend trying to preserve the history of objects and as a result would try to change the geometry of the existing ways if reasonably possible (JOSM has "replace geometry function that might be useful). Naturally you should:
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