On Tue, Oct 14, 2008 at 9:17 AM, Andy Robinson (blackadder-lists) < [EMAIL PROTECTED]> wrote:
> Karl Newman wrote: > >Sent: 14 October 2008 4:59 PM > >To: Frederik Ramm > >Cc: talk@openstreetmap.org > >Subject: Re: [OSM-talk] Yet another street number scheme > > > >On Mon, Oct 13, 2008 at 5:41 PM, Frederik Ramm <[EMAIL PROTECTED]> > wrote: > > > > > > <snip> > > > > As for the efficiency in storage, I suggest you take the long-term > >view: > > I am 100% sure that at some point in the future, OSM will have at > >least > > one node for every house, more likely a building outline for every > > house. Look at this if you don't believe me: > > > > > http://informationfreeway.org/?lat=51.03267406093207&lon=13.718639663 > >339111&zoom=15&layers=B0000F000F > > > > At this point it will be trivial (easy to edit, easy to handle, and > > requiring little extra storage) to simply add a house number tag to > > every one of these buildings. Any sort of complex relations for > roads > > with interpolation rules for house numbers will then simply be > > unnecessary. > > > > > >That's not really true, because there are devices (such as Garmin GPS > >receivers) on which we would like to use OSM data, which need address > >numbers in a compact format with interpolation rules. Trying to reverse- > >engineer the scheme (odd, even, both, etc.) from single nodes that aren't > >even part of the way is nigh-impossible, or at the least, wastefully > >compute-intesive and error-prone. > > > > However, houses are not part of the road network, so the house number node > should not be part of the highway, that would be tagging for the Garmin or > whatever. The house numbers need to go on the houses (or the object > representing them). > > Cheers > > Andy No, that would be tagging for actually being able to use the data. Without the odd/even/both information, it's actually a loss of data. Karl
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