/*! \page filters_page About filters \b Filters allow picking only the mesh elements satisfying to a specific condition or a set of conditions. Filters can be used to create or edit mesh groups, remove elements from the mesh object, control mesh quality by different parameters, etc. Several filters can be combined together by using logical operators \a AND and \a OR. In addition, applied filter criterion can be reverted using logical operator \a NOT. Mesh filters use the functionality of \ref quality_page "mesh quality controls" to filter mesh nodes / elements by specific characteristic (Area, Length, etc). The functinality of mesh filters is available in both GUI and TUI modes: - In GUI, filters are available in some dialog boxes via an additional "Set Filters" button, clicking on which opens the dialog box allowing to specify the list of filter criterions to be applied to the current selection. See \subpage selection_filter_library_page page to learn more about selection filters and their usage in GUI. - In Python scripts, filters can be used to choose only some mesh entities (nodes and/or elements) for the operations, which require the list of entities as input parameter (create/modify group, remove nodes/elements, etc). The page \ref tui_filters_page provides examples of the filters usage in Python scripts. */