Andreas Perstinger wrote: > > On 2011-06-15 04:01, Nathan Edgars II wrote: >> As far as I know, I have probably contributed data in the following >> circumstances: >> *Mapper A who has not accepted the change to ODbL drew two intersecting >> roads. >> *I note in person that there is a recently-added island-separated >> right-turn lane, and I add it (way B) based on the ways added by A and a >> rough estimate of its size. >> Now I am the only contributor in the history of way B and all of its >> nodes. Yet their locations are based on cc-by-sa data, and cannot be >> distributed under ODbL. > > Why should way B be based on way A? You have been there, noticed the new > way and added it. > Added it *based on existing data*. For simplicity, take the beginning of the way. This is a new node created by me, but lies along an existing way, and is thus related linearly to two existing nodes. We call this a derivative work.
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