The Shapely User Manual

Shapely is a Python package for set theoretic analysis and manipulation of planar features using (via Python·s ctypes module) functions from the well known and widely deployed GEOS library. GEOS, a port of the Java Topology Suite (JTS), is the geometry engine of the PostGIS spatial extension for the PostgreSQL RDBMS. The designs of JTS and GEOS are largely guided by the Open Geospatial ... ................
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