atlas

Thanks for that. I see now that it's linked from the article—I'd previously overlooked it as the article seemed to imply it was the product of their volunteer programme, but it seems it isn't: > The building information was developed with sensors from low altitude aerial imagery. > The building footprint and height information was captured and developed in 2013. There's also Atlas[0], not mentioned in the article, which seems to be a (open-source/non-free??[1]) tool released by Apple for use specifically with OSM data. Really interesting stuff. [0] https://github.com/osmlab/atlas [1] https://github.com/osmlab/atlas/blob/dev/LICENSE

Fun fact: they do! https://github.com/osmlab/appledata e.g. https://lists.openstreetmap.org/pipermail/talk-au/2018-May/0... > * I work for Apple’s Maps team. We are interested in doing some fixes and improvements to inland water features in Australia on OSM, such as adding and improving geometry of polygons for lakes and wide rivers, fixing broken relations, and correcting alignment issues for inland features when they meet the coast.* > Atlas [1], a tool Apple created for querying, visualizing, and storing OpenStreetMap data. > Data Improvement Projects [2] being worked on by the Apple Data Team. > Building Footprint Data [3] that Apple is sharing. [1]: https://github.com/osmlab/atlas [2]: https://github.com/osmlab/appledata/issues [3]: https://github.com/osmlab/appledata/blob/master/BUILDINGS.md