Hi Christoph, Thanks for the response. I reviewed the substantial guidelines, and I feel that it would be substantial as if I used it for one admin line, I'd want to use it for the entire country.
And as you say below, that if I use my own source of admin boundaries to form language polygons overlaid on the OSM boundaries, they will have mismatches. I compared what we currently have with Angola, and there are many places where our boundaries and OSM boundaries already coincide, but there are quite a few places where they differ. I'll keep looking into how I might be able to turn off/only download background without OSM admin boundaries to see if it is possible. Thanks, Marcus -----Original Message----- From: Christoph Hormann [mailto:chris_horm...@gmx.de] Sent: Friday, January 20, 2017 10:13 AM To: Licensing and other legal discussions. Subject: Re: [OSM-legal-talk] Series of maps for Angola On Friday 20 January 2017, Marcus Love wrote: > I was > thinking, that if I use OSM as a background, that I could edit the > language polygons that we have to follow along OSM admin boundaries > where they coincide. However, if I do that, would it then make those > polygons that I've edited a 'derivative database'? Probably yes, this depends on the extent to which you make use of OSM data in your proprietary data set. See also: http://wiki.osmfoundation.org/wiki/Licence/Community_Guidelines/Substantial_-_Guideline If you'd just adjust your polygons at a handful of places to fix major mismatches that would normally be considered insubstantial. > If that isn't possible to adapt our language polygons to OSM admin > boundaries without it becoming a derivative database, then we would > use another source for the admin boundaries. Is it possible to use an > OSM background and turn off/toggle the admin boundaries for the > basemap? Otherwise, we will have language boundaries which will be > slightly off the OSM admin boundaries, and wouldn't look that great > and might be confusing on the map. If you render an OSM based map without OSM based admin boundaries and add admin boundaries from a different source you have no derivative database, see: http://wiki.osmfoundation.org/wiki/Licence/Community_Guidelines/Horizontal_Map_Layers_-_Guideline Note however in such a map you would then simply have other mismatches, i.e. between the admin boundaries and OSM based basemap features instead of between the admin boundaries and your special thematic layer. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ legal-talk mailing list email@example.com https://lists.openstreetmap.org/listinfo/legal-talk _______________________________________________ legal-talk mailing list firstname.lastname@example.org https://lists.openstreetmap.org/listinfo/legal-talk