| Code | Anisotropic_Axis_2_Inline_Direction |
| Name | Anisotropic Axis 2 Inline Direction |
| Parents | Property > Plane_Angle > Zenith_Angle |
| Description | Angle of second anisotropic symmetry axis, relative to vertical, measured in the in-line direction. Taken together with Axis 1, Axis 2 is used to define the symmetry planes for orthorhombic anisotropy. |
