Specifies the X, Y, and Z components or element direction cosines.
For an element aligned with the X-axis,
Cos X ..... 1.0
Cos Y ..... <Blank>
Cos Z ..... <Blank>
For an element aligned with the Y-axis,
Cos X ..... <Blank>
Cos Y ..... 1.0
Cos Z ..... <Blank>
For an element aligned with the Z-axis,
Cos X ..... <Blank>
Cos Y ..... <Blank>
Cos Z ..... 1.0