geos ☆

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Description:
Geometry Engine

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: geospatial geometry gis ogc c-plus-plus

Install: brew install geos

About:
GEOS (Geometry Engine - Open Source) is a C++ library providing spatial data operations such as geometric validation, spatial predicates, and overlay functions. It serves as the core geometry engine for major geospatial projects like PostGIS, QGIS, and GDAL. Its main value proposition is offering a robust, high-performance foundation for processing vector geometries in geospatial applications.

Key Features:

Implements OGC Simple Features for SQL specification
Supports geometry types including points, linestrings, and polygons
Provides spatial predicates (e.g., intersects, contains, within)
Performs geometric operations (e.g., buffer, union, intersection)
C++ API with C and Python bindings available

Use Cases:

Building backend spatial logic for GIS applications
Validating and processing geographic data for analysis
Enabling spatial queries in database systems like PostGIS

Alternatives:

JTS (Java Topology Suite) – Java-based implementation of OGC specifications; GEOS is the C++ port and direct counterpart
Shapely – Python wrapper for GEOS; GEOS provides the underlying C++ engine

Version History

Detected	Version	Rev	Change	Commit
Sep 10, 2025 9:20am		0	VERSION_BUMP	8db9d2d5