6 ===========================
7 Modify elements by symmetry
8 ===========================
10 Symmetry modification can be done by *point*, *line* and *plane*::
12 doc.performSymmetryPoint (elements, origin)
13 doc.performSymmetryLine (elements, origin, direction)
14 doc.performSymmetryPlane (elements, origin, direction)
16 GUI command: :ref:`guimodifysymmetry`