Performs high-precision cartographic projections and coordinate transformations using the PROJ library.
PyProj is a specialized skill for Claude Code that enables sophisticated spatial analysis and geographic coordinate transformations. It provides a robust Python interface to the PROJ library, allowing users to convert coordinates between thousands of Coordinate Reference Systems (CRS), calculate ellipsoidal distances and areas with extreme accuracy, and define custom projections. This skill is essential for developers working on GIS applications, GPS data processing, and scientific mapping where precise geodetic math—such as Vincenty or Karney formulas—is required to avoid the distortions inherent in flat-map approximations.
Key Features
01High-precision geodetic calculations for distance, bearing, and area on ellipsoids
02Support for vertical datum transformations and Great Circle path calculations
03Convert between thousands of Coordinate Reference Systems (CRS) via EPSG codes
04Vectorized coordinate transformations for high-performance bulk processing
051 GitHub stars
06Automatic UTM zone identification and custom projection definition
Use Cases
01Automating the conversion of large spatial datasets between different international mapping standards
02Calculating exact distances between global coordinates using ellipsoidal math for scientific accuracy
03Transforming raw GPS data (WGS84) into localized projected systems like UTM or State Plane
