of.import.FEM.element.groups
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.. raw:: html
.. role:: red
.. role:: blue
**of.**\ :red:`import.FEM.element.groups` :blue:`*element_tag*` :blue:`*size*` :blue:`*edge_id1*` :blue:`*edge_id2*` :blue:`*edge_id3*` ...
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Import the element groups.
**Parameters:**
**element_tag:** tag of elements.
**size:** size of the groups.
**edge_id:** edge ids.
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Example:
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.. code-block::
of.import.FEM.element.groups 'rock' 5 1 3 9 15 32