Logical Expression
Use a Logical Expression node () to make a selection of geometric entities based on a logical expression in terms of other named selections.
Geometric Entity Level
Select the Level for the geometric entities: Domain, Boundary, Edge (3D only), or Point.
Expression
In the Logical expression field, enter a logical expression in terms of other named selections to define the resulting selection. You can use parentheses and the following Boolean operators: ||, &&, and ! for logical or (union), logical and (intersection), and logical not (complement), respectively. For example, the logical expression
(sel1 || sel2) && !sel3
means the union of selections sel1 and sel2 minus the selection sel3, where sel1, sel2, and sel3 are the tags of previously defined named selections.
Color
In this section, choose a color from the Color list for use with this selection. See Selection Colors.