[OSM-dev] area filtering on change streams?

Stephan Knauss osm at stephans-server.de
Sun Jan 20 17:49:14 GMT 2013


On 18.01.2013 18:53, Brian Cavagnolo wrote:
> I'd like to maintain an updatable database of OSM data clipped by a
> polygon.  I understand how to initialize the database using osmosis'
> --bounding-polygon task.  But this task does not seem to operate on a
> change stream.  Any recommendations on trimming a change set down?

As you already noticed only nodes have a coordinate and can be used for 
filtering.
Select your bounds a bit bigger and filter later in the database. I'm 
using a cron job to clean it up.

http://wiki.openstreetmap.org/wiki/User:Stephankn/knowledgebase#Cleanup_of_ways_outside_the_bounding_box


Stephan




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