[OSM-dev] Creating 3-d connected network from ways + layer tag

[Apollinaris Schoell]

On 29 Jul 2009, at 22:05 , Igor Brejc wrote:

> Karl Newman wrote:
>>
>> The topology rules are simple--if the ways share a node, then they  
>> are
>> connected and it is possible to navigate from any of the connected
>> ways to another (subject to turn restrictions, etc.) The layer tag is
>> primarily a hint for renderers for proper display of vertically
>> separated features. If the data is otherwise, then it is an error and
>> should be corrected.
>>
> Then how do you handle double-decker bridges?
> (http://en.wikipedia.org/wiki/Bridge#Double-decker_bridge)
>

2 ways with different layer number

> Regards,
> Igor
>
> -- 
> http://igorbrejc.net
>
>
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