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This is interesting. I thought they use aerial/satellite data to generate 3D models, didn't know they rely on things like floor number. But isn't floor height v
by fireattack 6y ago
This is interesting. I thought they use aerial/satellite data to generate 3D models, didn't know they rely on things like floor number. But isn't floor height vary a lot? Also I guess it's not the only info they use either?
- Macha 6y agoThe problem comes from a typo by an OSM editor, as they also import OSM data for some areas (this is a 2 way relationship, they allow OSM to trace their satellite images to build out OSM's database)
- coding123 6y agoFloor heights do, but from the perspective of just getting as much usable data as they can so you can see the 3d buildings, whatever works, right?
- ehnto 6y agoI'm pretty sure it's a mixture, as not all cities will have LIDAR/3D scan data available. The Melbourne CBD is accurately modeled, but the outskirts look like procedural generation.