s2geometry

s2geometry is an open-source library from Google designed for advanced computational geometry and spatial indexing specifically on the sphere. This library addresses the complexities of working with geographic data, which inherently resides on a curved surface, rather than simplifying it to a flat plane.

It offers a comprehensive set of functionalities for tasks like geospatial queries, finding nearest neighbors, performing geometric operations (e.g., intersections, unions), and efficiently storing and retrieving spatial data. Its core strength lies in its ability to maintain accuracy and performance across the entire globe.

Developers can leverage s2geometry to build applications requiring precise location-based services, mapping functionalities, and robust database indexing for global-scale spatial data. It provides a foundational layer for many complex geospatial problems.