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SFCGAL is a C++ wrapper library around CGAL with the aim of supporting ISO 19107:2013 and OGC Simple Features Access 1.2 for 3D operations.

SFCGAL provides standard compliant geometry types and operations, that can be accessed from its C or C++ APIs. PostGIS uses the C API, to expose some SFCGAL's functions in spatial databases (cf. PostGIS manual).

Geometry coordinates have an exact rational number representation and can be either 2D or 3D. Among supported geometry types are :

Supported operations include :

SFCGAL is distributed under the terms of the GNU Lesser General Public License 2+.