On Mon, Jul 8, 2013 at 9:37 AM, Peter K <peat...@yahoo.de> wrote: > Hi Igor, > > exactly in those areas I have a problem of understanding the OSM license :) > > > > If you store the elevation data in the original grid-based form > > No, as explained, I do intent to calculate edge weights based on OSM and > elevation data. Is this a trivial change? > > And then I "store" this mixed weights in-memory but this is only a > configuration to make it storing on disc. And would it make a difference? I > read somewhere that "storing" could be also in-memory with the rise of > NoSQL databases this makes indeed sense ... >
The license text is pretty general and there are different opinion on these issues. I think the key thing is that once you store combination of a lon/lat position (taken from OSM) and an elevation, you end up with a Derivative Database, as defined: “Derivative Database” – Means a database based upon the Database, and includes any translation, adaptation, arrangement, modification, or any other alteration of the Database or of a Substantial part of the Contents. This includes, but is not limited to, Extracting or Re-utilising the whole or a Substantial part of the Contents in a new Database." As opposed to: “Collective Database” – Means this Database in unmodified form as part of a collection of independent databases in themselves that together are assembled into a collective whole. A work that constitutes a Collective Database will not be considered a Derivative Database." >From my understanding, once you tie the two related pieces of data from two separate databases, you can no longer look at it as two independent databases. > > > Except, of course, if you intend to offer the routing as some kind of > high-availability web service > > which would allow somebody to reconstruct the original elevation data > using web scraping. > > What did you mean here? This would make a difference for the elevation > provider license not for the OSM license (?) > Both, I think - this means you publicly distribute the Derivative Database, which has its implications. It also means that CGIAR-based data is then available to public through a license different (and more permissive) than the original CGIAR license, which the owner is probably not going to be happy about - since he then cannot enforce the "*If interested in using this data for commercial purposes please email*" rule. The relevant text: "4.4 Share alike. a. Any Derivative Database that You Publicly Use must be only under the terms of: i. This License; ii. A later version of this License similar in spirit to this License; or iii. A compatible license." But again, I'm not a lawyer :).
_______________________________________________ legal-talk mailing list legal-talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/legal-talk