Defines the center of the plane of symmetry for this layer. If you turn symmetry display on for this layer, the geometry will
be reflected across this plane.
Symmetry Plane Normal
Defines the normal (perpendicular) direction for the symmetry plane. For example, 0.0 0.0 1.0 is a normal pointing up the
Z axis, which creates a plane oriented along the X and Y axes.
Tip
Use the Set Symmetry Plane command in a layer’s pop-up menu to set the plane.