2011/8/30 Bryce Nesbitt <[email protected]>: > On 08/29/2011 04:59 PM, Martin Koppenhoefer wrote: > What would you think about a stacked approach?
Is still complicated to evaluate, and tends not to focus on details, at least for residential landuse you would get lots of false positives simply because noone has yet bothered to draw different landuse where it applies. I would draw and tag the stuff that you know/have seen, e.g. there is an area where people live, fine, tag it landuse=residential. > You draw a regular polygon around the entire city: > landuse=residential > stacking=0 we have got place for "the entire city". > Add the parks within the commercial district > landuse=recreation_ground > stacking=2 leisure=park (which doesn't force you to set any landuse) for parks. I thought that recreation_ground had something to do with sports. > Insert a the beach in the park, as a regular polygon > natural=beach > stacking=4 I would see natural and landuse orthogonal. natural (looking at the currently used tags, with very few exceptions) seems to describe a topographical feature (like a beach, a bay, a summit, a mountain pass, a cave, ...). This feature might have more then one landuse inside (or overlapping, or several features can be inside one landuse -> they have few to do with eachother). See also this proposal: http://wiki.openstreetmap.org/wiki/Proposed_features/landcover > With a patch of green grass roof (a city park): > landuse=recreation_ground > stacking=11 -1, IMHO landuse is about _land_use, so I would not tag a roof with landuse. > For one downside: you have to parse everything in the bounding box before > calculating areas. yes, and not only. If you drew a polygon around the whole city and then download just a fraction inside this polygon you will hardly ever see it in your editor (because its way is not intersecting the download area). Similarly you might get problems on rendering and all other kind of data evaluation (because you never know if your bounding box is big enough). Cheers, Martin _______________________________________________ Tagging mailing list [email protected] http://lists.openstreetmap.org/listinfo/tagging
