The unit vector of the local X-axis (U-Axis) given in global Coordinate System. PrimaryAxis has the following attributes:
| Attribute | Namespace | Type | Use | Default | Fixed | Description |
|---|---|---|---|---|---|---|
| x | ocx | xs:double | req. | Numeric value of x component. | ||
| y | ocx | xs:double | req. | Numeric value of y component. | ||
| z | ocx | xs:double | req. | Numeric value of z component. |