PythonOCC

Description
PythonOCC is a project that aims at providing the entire range of OpenCASCADE Technology (OCCT) functions through the Python module. This is a different approach from FreeCAD's, where only certain components of OCCT are exposed, resulting in a much simpler structure.

PythonOCC, on the other hand, since it provides you access to all of OCCT classes and functions, is very complex, but also very powerful. When you are limited by FreeCAD's available OCCT functionality in your Python scripts, it's time to load.

Usage
Currently in the Part module we have the methods and  to exchange  (Part TopoShape) entities to and from PythonOCC. This allows us to use the full power of OCCT in Python and then put the resulting shapes back to FreeCAD.

PythonOCC is internally used by the IFC viewer included with the IfcOpenShell libraries. IfcOpenShell is used to read and write IFC documents with FreeCAD, through the Arch and BIM Workbenches. PythonOCC is only needed to launch IfcOpenShell's integrated viewer, otherwise, it is not used at all by FreeCAD.

More information

 * Project page: pythonocc.org
 * Newer version compatible with OCCT 7.4, tpaviot/pythonocc-core.
 * Older version compatible with OCE 0.18, the community edition of OCCT, tpaviot/pythonocc.
 * IfcPlusPlus compiled on Gentoo - questions and alternatives?