On 4/28/2012 7:59 AM, Anthony wrote:
Scanning the wiki it looks like usually-not-area would be less of a moving target. Otherwise almost every time someone adds a new amenity you have to add a new always-area tag. The usually-not-area would be junction=roundabout, barrier=*, highway=pedestrian, leisure=track, man_made=breakwater, man_made=groyne, man_made=pier, natural=cliff, and waterway=dam.
There are also issues with multiple tags. For example tourism=attraction is usually an area, but on a railway=preserved that goes in a loop it's probably not. I don't think Mapnik handles an explicit area=no correctly here.
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