![](https://box.kancloud.cn/6b22697797fa00a756353c6682b0c638_1341x451.png =230x) ### **Symmetry** * * * * * **Description**: If a symmetric constraint is imposed, define a line (two-dimensional) or a plane (three-dimensional) as the axis of symmetry or face. (This component must be used after generating the mesh.) **Input**: Sym: Enter the axis of symmetry (two-dimensional) or the plane of symmetry (three-dimensional). Tol: Tolerance value. **Output**: Syms: Symmetric constraint.