[OSM-dev] [OSM-talk] Circular relation by user mapper_07

Blars Blarson openstreetmap-dev at scd.debian.net
Fri Jul 17 01:19:21 BST 2009


In article <7ec79eed0907160140t2c1b9ffdmc64c27d7aca67809 at mail.gmail.com>
cbro at semperpax.com writes:
>I'd be curious to know how the api calculates the bounding box of such a
>relation, assuming the api definition is "the smallest bbox containg all
>children bbox'es".

Trapi handles this by keeping a hash of all the relations that have
been seen processing this relation already.  (It also does relation
members first, creating a hash of way members to process.)

There are some relations that are in a huge number of tiles.
-- 
Blars Blarson			blarson at scd.debian.net

With Microsoft, failure is not an option.  It is a standard feature.




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