[OSM-dev] road data in zoom levels

marcus.wolschon at googlemail.com marcus.wolschon at googlemail.com
Wed Feb 11 11:56:21 GMT 2009

On Wed, 11 Feb 2009 12:39:07 +0100, Patrik Sjöberg <patrik.sjoberg at bth.se>
> Hi!
> What would be the best way to get data for ways at a specific zoom  
> level? I would like all roads visible on zoom 5 for instance, possibly  
> with lower resolution (fewer nodes per way). I'm guessing something  
> like http://www.informationfreeway.org/api/0.5/way[highway=*] but the  
> API's only seem suitable for quite small boxes.

I will make the way-simplification of the LODDataSet in the
Traveling Salesman -navigator into an osmosis-plugin soon.

We use it to combine split ways (like long motorways or coartlines)
and then simplify them to contain fewer nodes.
The resulting ways are stored for rendering low zoom-levels
(a city, state, country or continent) in realtime while the
user is driving.


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