[OSM-legal-talk] Do overlays have to be released under ODbL?

[Tobias Wendorff]

Am So, 13.03.2016, 14:06 schrieb Simon Poole:
>
> I specifically limited my point to the case in which there was no
> changes to the OSM layer due to the 3rd party layer and vice versa.

Yeah, I've understood this point, but the guideline doesn't care
about a change to the OSM layer! The layer either modified by the
new features or unmodified, but with new layers. And that's the really
interesting part.

> In other words: there is no interaction between the layers other than
> they are visually superimposed.

Let's say, a corporation just ovelays their new hiking track on the
hiking map, with other tracks being on the map already.

Most of the people can't render their own basemaps and remove existing
tracks. Will it complement the other features? That's exactly what the
quoted guideline is about: It's talking about new layers with the
same feature class.