Classifying by runway length does make some sense to me, but I really have no idea how Mapnik or any other renderer works. Not sure if this would in fact be easy or not. It also means a renderer needs the runway tagged as a way or polygon in order to make a decision. What is a renderer to do with the many small airstrips that are just tagged with a node? Should it just assume that they are minor and only render them at a low zoom? This could work….
Zeke On Tue, Jun 15, 2010 at 9:54 AM, Richard Weait <rich...@weait.com> wrote: > On Tue, Jun 15, 2010 at 8:44 AM, Lars Ahlzen <l...@ahlzen.com> wrote: > > > Anyway, I've been trying to clean up the airports a bit in my state, and > > I would very much like to see some form of classification like what you > > originally suggested. > > Looks like there are multiple, conflicting classifications > internationally. Rather than creating another arbitrary > classification and the international incidents that can come along > with that, what about classifying by runway length? Once a runway is > added to the db, can you not determine the length of the runway and > select a suitable rendering rule based on that? Certainly a local > renderer can choose to do that. A wee bit of pre-processing would let > you start from runway length and assign an arbitrary classification of > your choice to make your rendering simpler. > > For how many / what percentage of airfields would runway length not be > sufficient to establish "prominence"? > > _______________________________________________ > Talk-us mailing list > talk...@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us >
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