The centre of gravity (COG) of the parent object. The receiving application can use the value received from the authoring application to check that the object has been transferred correctly. CenterOfGravity has the following attributes:
| Attribute | Namespace | Type | Use | Default | Fixed | Description |
|---|---|---|---|---|---|---|
| coordinates | ocx | ocx:doubleListType | req. | |||
| unit | ocx | xs:IDREF | req. |