[Tagging] [Talk-us] Aeroway=Aerodrome Modifier Tags?

[Zeke Farwell]

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 <richard at weait.com> wrote:

> On Tue, Jun 15, 2010 at 8:44 AM, Lars Ahlzen <lars at 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"?
>
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