[OSM-dev] Osmosis: Filter way/node *without* key x

[Brett Henderson]

Celso González wrote:
> On Thu, Feb 12, 2009 at 07:48:02PM +1100, Brett Henderson wrote:
>   
>> All tasks are documented here (with the exception of a custom database 
>> implementation that is unrelated):
>> http://wiki.openstreetmap.org/wiki/Osmosis/DetailedUsage
>>     
>
> Its in the doc but it seems that its not possible because of the type of
> output but... is there a way to get something like this?
>
> $osmosis --rxc file=changes.osc --bp poly.poly --wxc=changes.limited.osc
>   
Is this related to Rolf's original question or is it a separate question?

Rolf was discussing filtering data by tag.  The above question discusses 
filtering changesets by polygon which is entirely different.  You cannot 
filter a changeset by polygon because a changeset doesn't contain enough 
information, all nodes for changed ways may not be included in the file 
therefore the location of ways may not be known.

Brett