Tag: gis

All the articles with the tag "gis".

• Modeling AGL Airspace Accurately with PostGIS Tessellation

  Published:Jul 16, 2026 |  at 12:00 PM

  Centroid-sampled flat airspace volumes silently lie over real terrain. Here's how to tessellate AGL airspace into terrain-following 3D solids in PostGIS, and how to detect conflicts between thousands of them in under a second.

• Latitude/Longitude Distance Decrypted

  Published:Oct 28, 2025 |  at 12:00 PM

  Deciphering latitude and longitude and their relation to meters for Cesium!