Selection filter library allows creating and storing in files
the filters that can be later reused for operations on meshes. You can
-access it from the Main Menu via **Tools / Selection filter library**.
+access it via menu **Tools > Selection filter library**.
It is also possible to save/load a filter by invoking the filter library
from :ref:`filtering_elements` launched from any mesh operation.
criteria using **Binary** operators *Or* and *And*.
Some criteria have the additional parameter of **Tolerance**.
+
Switching on **Insert filter in viewer** check-box limits
selection of elements in the Viewer to the current filter.
The following criteria allow selecting mesh **Nodes**:
* **Free nodes** selects nodes not belonging to any mesh element.
-* **Double nodes** selects a node coincident with other nodes (within a given **Tolerance**). See also :ref:`tui_double_nodes_control`.
-* **Connectivity number** selects nodes with a number of connected elements, which is more, less or equal to the predefined **Threshold Value**. Elements of the highest dimension are countered only.
+* **Double nodes** selects a node coincident with other nodes (within a given **Tolerance**). See also :ref:`Double Nodes quality control <tui_double_nodes_control>`.
+* **Connectivity number** selects nodes with a number of connected elements, which is more, less or equal to **Threshold Value**. Elements of the highest dimension are countered only.
The following criteria allow selecting mesh **Edges**:
-* **Free Borders** selects free 1D mesh elements, i.e. edges belonging to one element (face or volume) only. See also a :ref:`free_borders_page`.
-* **Double edges** selects 1D mesh elements basing on the same set of nodes. See also :ref:`filter_double_elements` .
-* **Borders at Multi-Connections** selects edges belonging to several faces. The number of faces should be more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**. See also a :ref:`borders_at_multi_connection_page`.
-* **Length** selects edges with a value of length, which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**. See also a :ref:`length_page` .
+* **Free Borders** selects free 1D mesh elements, i.e. edges belonging to one element (face or volume) only. See also a :ref:`Free Borders quality control <free_borders_page>`.
+* **Double edges** selects 1D mesh elements basing on the same set of nodes. See also :ref:`filter_double_elements` quality control.
+* **Borders at Multi-Connections** selects edges belonging to several faces. The number of faces should be more, less or equal (within a given **Tolerance**) to **Threshold Value**. See also a :ref:`borders_at_multi_connection_page` quality control.
+* **Length** selects edges with a value of length, which is more, less or equal (within a given **Tolerance**) to **Threshold Value**. See also a :ref:`length_page` quality control.
The following criteria allow selecting mesh **Faces**:
-* **Aspect ratio** selects 2D mesh elements with an aspect ratio (see also an :ref:`aspect_ratio_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Warping** selects quadrangles with warping angle (see also a :ref:`warping_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Minimum angle** selects triangles and quadrangles with minimum angle (see also a :ref:`minimum_angle_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Taper** selects quadrangles cells with taper value (see also a :ref:`taper_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Skew** selects triangles and quadrangles with skew value (see also a :ref:`skew_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Area** selects triangles and quadrangles with a value of area (see also an :ref:`area_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Free edges** selects 2D mesh elements having at least one edge, which is not shared with other faces. See also a :ref:`free_edges_page`.
+* **Aspect ratio** selects 2D mesh elements with an aspect ratio (see also an :ref:`aspect_ratio_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Warping** selects quadrangles with warping angle (see also a :ref:`warping_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Minimum angle** selects triangles and quadrangles with minimum angle (see also a :ref:`minimum_angle_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Taper** selects quadrangles cells with taper value (see also a :ref:`taper_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Skew** selects triangles and quadrangles with skew value (see also a :ref:`skew_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Area** selects triangles and quadrangles with a value of area (see also an :ref:`area_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Free edges** selects 2D mesh elements having at least one edge, which is not shared with other faces. See also a :ref:`free_edges_page` quality control.
* **Free faces** selects 2D mesh elements, which belong to less than two volumes.
-* **Double faces** selects 2D mesh elements basing on the same set of nodes. See also :ref:`filter_double_elements`.
-* **Faces with bare border** selects 2D mesh elements having a free border without an edge on it. See also :ref:`bare_border_faces_page`.
-* **Over-constrained faces** selects 2D mesh elements having only one border shared with other 2D elements. See also :ref:`over_constrained_faces_page`.
-* **Borders at Multi-Connections 2D** selects cells consisting of edges belonging to several elements of mesh. The number of mesh elements should be more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**. See also a :ref:`borders_at_multi_connection_2d_page`.
-* **Length 2D** selects triangles and quadrangles combining of the edges with a value of length, which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**. See also a :ref:`length_2d_page`.
+* **Double faces** selects 2D mesh elements basing on the same set of nodes. See also :ref:`filter_double_elements` quality control.
+* **Faces with bare border** selects 2D mesh elements having a free border without an edge on it. See also :ref:`bare_border_faces_page` quality control.
+* **Over-constrained faces** selects 2D mesh elements having only one border shared with other 2D elements. See also :ref:`over_constrained_faces_page` quality control.
+* **Borders at Multi-Connections 2D** selects cells consisting of edges belonging to several elements of mesh. The number of mesh elements should be more, less or equal (within a given **Tolerance**) to **Threshold Value**. See also a :ref:`borders_at_multi_connection_2d_page` quality control.
+* **Length 2D** selects triangles and quadrangles combining of the edges with a value of length, which is more, less or equal (within a given **Tolerance**) to **Threshold Value**. See also a :ref:`length_2d_page` quality control.
* **Coplanar faces** selects mesh faces neighboring the one selected by ID in **Threshold Value** field, if the angle between the normal to the neighboring face and the normal to the selected face is less then the angular tolerance (defined in degrees). Selection continues among all neighbor faces of already selected ones.
-* **Element Diameter 2D** selects triangles and quadrangles composed of the edges and diagonals with a value of length, which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**. See also a :ref:`max_element_length_2d_page`.
+* **Element Diameter 2D** selects triangles and quadrangles composed of the edges and diagonals with a value of length, which is more, less or equal (within a given **Tolerance**) to **Threshold Value**. See also a :ref:`max_element_length_2d_page` quality control.
The following criteria allow selecting mesh **Volumes**:
-* **Aspect ratio 3D** selects 3D mesh elements with an aspect ratio (see also an :ref:`aspect_ratio_3d_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Volume** selects 3D mesh elements with a value of volume (see also a :ref:`volume_page`), which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**.
-* **Element Diameter 3D** selects 3D mesh elements composed of the edges and diagonals with a value of length, which is more, less or equal (within a given **Tolerance**) to the predefined **Threshold Value**. See also a :ref:`max_element_length_3d_page`.
-* **Double volumes** selects 3D mesh elements basing on the same set of nodes. See also :ref:`filter_double_elements`.
+* **Aspect ratio 3D** selects 3D mesh elements with an aspect ratio (see also an :ref:`aspect_ratio_3d_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Volume** selects 3D mesh elements with a value of volume (see also a :ref:`volume_page` quality control), which is more, less or equal (within a given **Tolerance**) to **Threshold Value**.
+* **Element Diameter 3D** selects 3D mesh elements composed of the edges and diagonals with a value of length, which is more, less or equal (within a given **Tolerance**) to **Threshold Value**. See also a :ref:`max_element_length_3d_page` quality control.
+* **Double volumes** selects 3D mesh elements basing on the same set of nodes. See also :ref:`filter_double_elements` quality control.
* **Bad oriented volume** selects mesh volumes, which are incorrectly oriented from the point of view of MED convention.
-* **Over-constrained volumes** selects mesh volumes having only one facet shared with other volumes. See also :ref:`over_constrained_volumes_page`.
-* **Volumes with bare border** selects 3D mesh elements having a free border without a face on it. See also :ref:`bare_border_volumes_page`.
+* **Over-constrained volumes** selects mesh volumes having only one facet shared with other volumes. See also :ref:`over_constrained_volumes_page` quality control.
+* **Volumes with bare border** selects 3D mesh elements having a free border without a face on it. See also :ref:`bare_border_volumes_page` quality control.
+
+
+**See also** sample scripts of :ref:`tui_filters_page`.
