[OSM-talk] Bridge rendering for freeway overpasses/interchanges in Mapnik and Osmarender

[Beau Gunderson]

Here's a freeway interchange near Seattle, WA in Mapnik:


http://www.openstreetmap.org/?lat=47.63265&lon=-122.18557&zoom=17&layers=B00FF

And here's the same in Osmarender:


http://www.openstreetmap.org/?lat=47.63265&lon=-122.18557&zoom=17&layers=0B0FF


The 'wings' at the start and end of the bridge in Osmarender don't really
work when rendering complex freeway interchanges like this, they tend to
clutter things up to my eye.

The things that do look great in the Osmarender style are the additional
white line between the way and the edge and the lighter gray for the edge
color.

The options I can think of to reduce the clutter would be to either remove
the wings from Osmarender (which is probably not a good idea because they do
look nice when not used for freeway interchanges) or to create a new tag or
an additional option to the bridge tag (bridge=overpass?). The Mapnik
version may benefit from looking more like the Osmarender style too.


What do you all think?


Thanks,

Beau
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