The surface area computed by the sending application. Used to verify geometry reconstruction by allowing the receiving application to compare the source value with the reconstructed value. Area 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. |