Am Montag, 28. Juli 2008 20:37 schrieb Karl Newman: > It's not "a bit more difficult", it's a huge burden. It means you presume > the data consumer has to be working from a database that contains the > entire area you're interested in (maybe the planet?).
You can safely assume that a house is almost never more than 200m away from its street. In the cases where it is, you can use the otherwise optional relation, or for disambiguation (e.g. houses near road crossings) the street name. > Your suggestion > demands random access to the entire dataset and thus precludes using > pipeline tools such as Osmosis. > I don't see how relations would change that. You'd have to read in all relations first, and then cache all objects referenced by the relations, to process them later on. For an area with complete house-numbering this is probably not better than keeping all relevant ways in memory (or, in a database). Regards, Marc
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