[OSM-talk] open data

Paul Dixon paul at elphin.com
Wed Sep 20 17:03:03 BST 2006


>
> CC-SA means that, if we do that, the three sets of geodata above need  
> to be released as ShareAlike. OSM gets the waterways and the contours.  
> I have no problem with that.
If you are simply talking about a nicely rendered map here, then I'm not
sure this is correct.

AFAIK, CC-SA doesn't require you to share the materials you used to
create your work, you just need to share the derivative work itself. (In
order to apply the licence to your work, you must of course have the
*right* to create and distribute derivative works from your source
materials).

If you released your map as CC-SA, it would mean I could, say, take the
image and rework it so it was wallet sized, say. But it doesn't give me
the right to demand the materials you used to make it.

I am not a lawyer, that's just my current understanding - happy to be
corrected!







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