https://www.pistack.xyz/tags/geometry/ Recent content in Geometry on Pi Stack Hugo en-us Sat, 20 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-20-spatial-index-computational-geometry-libraries-libspatialindex-geos-s2-boost-rbush/ Sat, 20 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-20-spatial-index-computational-geometry-libraries-libspatialindex-geos-s2-boost-rbush/ <h2 id="introduction">Introduction</h2> <p>Spatial data is everywhere — from GPS coordinates in mobile apps to geometric shapes in CAD software and polygons in GIS systems. Efficiently querying &ldquo;what is near this point?&rdquo; or &ldquo;do these polygons intersect?&rdquo; requires specialized data structures and algorithms that standard databases cannot provide out of the box. Spatial index libraries bridge this gap, offering R-trees, quadtrees, and computational geometry primitives optimized for 2D and 3D spatial queries.</p>