invariant# class ansys.fluent.core.generated.solver.settings_251.invariant(name=None, parent=None)# Bases: Boolean Enable motion of points in this direction. Included in: Parent Summary x_5 Region conditions in the X direction. y_5 Region conditions in the Y direction. z_5 Region conditions in the Z direction. theta_2 Region conditions in the theta direction. radial Region conditions in the radial direction. axial Region conditions in the axial direction.