geos: geos (Geometry Engine)
geos: 
geos: GEOS is a C++ port of the Java Topology Suite (JTS).
geos: As such, it aims to contain the complete functionality of JTS in C++.
geos: This includes all the OpenGIS Simple Features for SQL spatial
geos: predicate functions and spatial operators, as well as specific JTS
geos: enhanced topology functions.
geos: 
geos: 
geos: 
geos: