[OSM-talk] License change/redaction affecting objects geometry

[Pieren]

On Thu, Apr 12, 2012 at 1:15 PM, Jacek Konieczny <jajcus at jajcus.net>
> The tag sounds like a good idea, but it has one problem: untouched tags
> would stay forever even if there is no real problem there. It will be
> only unneeded data in the database. Of course, the tags could be removed
> by some bot later… but we don't like bots, do we?

Remapping was really effective only when we had the tools identifying
the affected elements (the special license API, its support on
editors, the maps on OSMI or poole.ch). Once the redaction will be
complete, it will be much harder to find the errors mentionned above.
If the remapping tools disappear, it will simply stop or go much
slower. The main advantage of the tag is that the people motivated by
the remapping (and we had many in the past weeks, see [3]) will be
able to continue with monitoring tools which can be easily adapted
(e.g. special rendering rule for the special tag).

> Would these tools catch all of the problem you mentioned?
Only for some cases but surely not for all without comparing with the
old dataset (which might be a legal issue).

Pieren

[3] http://tools.geofabrik.de/osmi/munin.html