[OSM-talk] Opinion poll about the new licence Odbl 1.0

[80n]

On Sun, Dec 6, 2009 at 5:47 PM, Tobias Knerr <osm at tobias-knerr.de> wrote:

> Pieren wrote:
> > Could someone deliver a script that could make this automatically for
> > me  :"take all elements where I am the last contributor but not the
> > only one then delete and recreate them identically under my user
> > account then all my efforts are saved at the licence transition" ?
>
> In my opinion, whether your data is derived from other data isn't
> determined by having the same object ID. If I completely remove all tags
> from a node, move it somewhere else and add new tags, then it's most
> likely not derived from the previous work. If I add a tag to a road,
> then it is derived from previous work, and this doesn't change at all if
> I choose to copy the road and delete the original.
>
> Using the object history is just an approximation based on the
> assumption that mappers will usually keep an object if they are
> improving existing data, and create new objects if they add completely
> new information. It's not really possible for an automated process to do
> anything else.
>
> Actually even this doesn't work.  If a way is split into two (using JOSM)
then the database does not record any information about the split and the
history is kept with only one of the ways.

This means that the history and original attribution for half of all the
split ways is just not there.  I don't think there's going to be a way of
deleting all the data for those people who don't accept the new license.







> Tobias Knerr
>
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