Botfather90/overshadow

Building-to-building overshadowing and sun geometry for JS/TS: give it a proposed massing (height + centroid) and neighbour footprints, get who falls in the shadow, with a traffic-light separation verdict. Zero-dep GeoJSON geometry + OSM smart-snap. The solar check suncalc does not give you.

3 best points · 0 comments · 1 Hacker News post · 1 GitHub stars · View on GitHub

Hacker News discussions

• Overshadow-JS, suncalc tells you sun angles, this tells you shadows (3 points, 0 comments, by Brandon99pt, 2026-07-03)