Hi, Frederik Ramm wrote: > We need to clarify this once and for all: Where exactly in the following > typical rendering chain does the thing cease to be a database in our > definition? > > * download (section of) OSM data > * make changes to OSM data > * render OSM data into vector graphics format (say SVG) > * make changes to SVG file (say using Inkscape) > * render SVG file into bitmap > * make changes to bitmap
Let me explain why I think that this is so important, and please correct me if you have a different interpretation than I have. ODbL says you have to share a derived database if you publish it. You do *not* have to share the full chain of derived databases that led you from the planet file to your final derived database, just the latest one that you publish. If you create and publish a Produced Work, then you have to share the derived database on which it is built. This means that in any case, only *one* database from the above chain will have to be published. If we, say that no item in the above list is a "Produced Work", i.e. even a bitmap is still a database, then the person running the above process will *only* have to publish and share the bitmap and *not* his improved OSM database. If we say that the vector graphics is still a database but the rendering of a bitmap makes it into a produced work, then the publisher of the bitmap need not share the bitmap, and neither his improved OSM database, but (only) the vector graphics. If we say that the database is lost and a Produced Work created when rendering the vector graphics from the OSM database, then neither the vector graphics nor the bitmap need be shared, but the modified OSM database has to be. Obviously a shared bitmap without the OSM data behind it is rather worthless to us... it is better than nothing of course, but the shared bitmap is what CC-BY-SA gives us today. Bye Frederik -- Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" E008°23'33" _______________________________________________ legal-talk mailing list legal-talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/legal-talk