On 11/17/2010 05:43 PM, Ed Avis wrote:
Yes, this is one of the more unpleasant aspects of the licence, at least under
some interpretations. It's allowed to make proprietary, all-rights-reserved
map renderings, but if you want to produce a truly CC-licensed or public domain
one you can't. (This refers to the no-tracing restrictions; an attribution
requirement is more reasonable.)
You can produce CC-licensed work from ODbL/DbCL data.
One of the main problems with the proposed ODbL/DbCL setup is that it's pretty
murky what is allowed and what isn't allowed; and also quite unclear whether the
It is more clear that the ODbL allows what OSM wish to allow than BY-SA
does.
I don't personally agree with the consensus on mash-ups, but it is
clearly realised by the ODbL.
things that are disallowed are truly enforceable, or just magic text which has
no real weight. If OSM itself produced a public domain tileset, the clarity of
the action would compensate a bit for the uncertainty of the licence; it would
be clear for all that rendered map tiles can be distributed under any terms.
That's a reasonable point. But it would upset the copyleft proponents.
Like me. ;-)
Btw: isn't a rendering a derived database as well?
Quite possibly.
No, it's a derived work. The definitions in the ODbL make this
reasonably clear.
- Rob.
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