New answers tagged shapely
GEOS is the software you get from http://trac.osgeo.org/geos/ (which has the title you mentioned, so it is likely what you meant). There are C and C++ interfaces as part of a standard build. libgeos_c means the C interface. On Ubuntu (and probably Debian) it is the libgeos-c1 Geometry engine for Geographic Information Systems - C Library package. ...
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