Adjacent Selection (Mesh Sequences)
Use an Adjacent Selection node () to create selection of all entities of a given dimension that are adjacent to entities in a specified selection (having the same or another dimension). For example, it can select all boundaries adjacent to a given domain selection.
To add an Adjacent Selection node, select entities in the graphics, then choose one of the following:
•
Right-click in the Graphics window and select Adjacent Selection () from the Selections menu. For more information, see The Graphics Context Menu.
•
On The Mesh Toolbar, select Adjacent Selection from the Selections () menu.
•
Right-click the Mesh node and choose Adjacent Selection () from the Selections menu.
Input Entities
Based on space dimension, select a Geometric entity level: Domain, Boundary, Edge, or Point for the entities to add to the selection list or choose a named selection in the Selection list to refer to a previously defined selection.
Select and add geometric entities in the Graphics window or using other selection methods. The selected items are highlighted in the Graphics window.
If Boundary (for 2D and 3D models) or Edge is selected, also select the Group by continuous tangent check box to extend the selection to all adjacent faces or edges that have continuous tangents (an angle less than the value in the Angular tolerance field) at their junctions to select all faces that make up a continuous sheet, for example. When the Group by continuous tangent check box is selected, set the tolerance on the continuity condition in the Angular tolerance field as the maximum angle between two faces or edges that are considered as having continuous tangents (a value between 0 and 180 degrees; the default value is 5 degrees).
If a particular selection is used elsewhere in the model, including in other selections, it is not possible to change the geometric entity level, for example, from domains to boundaries.
To deselect one or some of the faces or edges that make up the group with continuous tangents, first clear the Group by continuous tangent check box.
Output Entities
In the list, choose the type of output entities: Adjacent domains, Adjacent boundaries, Adjacent edges (3D only), or Adjacent points. If the dimension for the output entities one step lower dimension than the input entities, there are also two check boxes that you can use to select exterior and interior entities of the union of the input selections.
By default, only exterior entities are selected. For example, if the input selections are domains selections, and the output is adjacent boundaries, the Exterior boundaries (selected by default) and Interior boundaries check boxes display.
Resulting Selection
Select the Show in physics check box (selected by default) to make the resulting selection available as a named selection should appear in applicable settings for physics, materials, and other parts of the model tree outside of the mesh or mesh part. Clear the check box to keep the selection local to this mesh sequence.
Color
In this section, choose a color from the Color list for use with this selection. See Selection Colors.
•
Explicit Selection (Mesh Sequences)
•
Named Selections
•
Creating Named Selections in the Mesh Sequence