The offset of frame zero (#0) from the After Perpendicular (AP). The default is zero offset (#0 is located at AP) DistanceToAP has the following attributes:
| Attribute | Namespace | Type | Use | Default | Fixed | Description |
|---|---|---|---|---|---|---|
| numericvalue | ocx | xs:double | req. | The numerical value of the quantity. | ||
| unit | ocx | xs:IDREF | req. | The reference to the unitsML reference unit. |