[Free-cad-development] Faces

[Dino D. F. <di...@me...>]

Hello everybody, 
I'm new to FreeCAD, I'm trying to retrieve info from a face using a python 
script, for example I want to know the normal vector in a point of the face,
I have read 
http://sourceforge.net/apps/mediawiki/free-cad/index.php?title=Mesh_to_Part 
but not understand what represent the values retrieved by 
face.ParameterRange, I think that I need use this values for "move" on the 
face, it is right? 
someone can help me to understand? or can indicate me where is the 
documentation that can help me? 

Thank you so much
Best regards
Dino 

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