Hexagonal grid covering Selangor at 3 resolutions. Resolution 7: State overview (~5 km2 per hex) Resolution 8: District level (~0.7 km2 per hex) Resolution 9: Mukim detail (~0.1 km2 per hex) Used for density visualization and spatial aggregation. Note: PostGIS-based implementation (H3 extension not available)
area_km2 created_at hex_id id resolution