Hi, I have problems rendering this kind of relation: http://www.openstreetmap.org/browse/relation/1525 Many lakes in the Netherlands are automatically tagged (AND import) like this. The lake is a multipolygon, where the outer border is tagged as natural=water (role=outer) and the inner border (for instance an island in this lake) as natural=water (role=inner) too. When I render this, the islands in those lakes are flooded. Of course it would be better not to tag those inner borders at all, or use landuse=* or natural=land Is there a method in the style file to flag ways with role=outer and role=inner from the same multipolygon? What I would like to do is something like this:
From lake A with type=multipolygon and way A1 {natural=water & role=outer} and way A2 {natural=water & role=inner} remove the tag natural=water from way A2 (or retag natural=water to natural=land?)
Is this possible? Cheers, Minko