2010/5/14 Jonas Minnberg <sas...@gmail.com>:
> OK, some real world examples;
> * Two overlapping wood-areas, one named, the other not.


Generally it's a good idea to tidy up your area, given you know the
area, so in this case: either you know the extent of the named area in
real life, or you shouldn't touch it.

> * Grass inside grass landuse, rock inside grass landuse etc - is the rule
> that wholly interior (possibly sharing nodes with the exterior) areas are
> always rendered on top of its exterior area?


no, there is no such rule and even if the rendering is correct, the
mapping in the rock-grass case isn't: either there is grass or rocks,
i.e. you should model a multipolygon-relation. Grass inside grass: are
there any other tags? What is there (is the outer grass-polygon really
completely grass?). Noone can give you hints just by reading tags and
not seeing what is there or what is mapped exactly.

cheers,
Martin

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