Antimeridian (±180° meridian)
globalGeometries crossing ±180° longitude wrap incorrectly, producing world-spanning artifacts when treated as planar.
▪ Rendered from the real conversion/geometry code.Detection
Ring longitude span > 180° or sign change across ±180°.
Mitigation
- Split geometry at the antimeridian
- Densify edges along great circles
- Use h3 isGeoJson handling / unwrap longitudes
Read the full article: Antimeridian Handling →
Ether Data · Spatio-temporal intelligence