# Data and credits

PLATEAU building data, processed for this demonstration.
https://www.mlit.go.jp/plateau/

OpenStreetMap contributors — ODbL.
https://www.openstreetmap.org/copyright

Three.js — MIT (see ../vendor/LICENSE).

7,770 building records across 233 chunks. 5,920 heights have an attribute value; 1,850 cannot be distinguished between measured height and mesh-derived fallback in the processed data. Worker local-store accounting covers the accounted arrays rather than all browser memory.