How to know if 2 faces are parallel.

galaxyblazer's picture

Hi.
I tried to use BRepExtrema_ExtFF class to recognize if two faces are parallel. And I found that it doesn't works for two parallel cylindrical faces.
Example of faces:
http://prntscr.com/dz61q5
http://prntscr.com/dz626p

Does OCCT provide other classes that can help to recognize parallel faces?

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