filterBE{
further filtering of boundary elements in a manipulate{"alias1",...}-statement
A nice functionality to further filter the list of BE which a geometry manipulation has to act on.
It is an OPTIONAL add-on to the
manipulate{ functionality .
the
filterBE{ function is based on the implementation of
removeBEonCondition{ . Here, instead of removing, the
GeometryManipulations are only applied to the boundary elements, for which the filter-functional applies.
example