====== SurfaceRef ======

The reference to a Surface geometry which is shared between more than one part.

===== Attributes =====

^ Name ^ Type ^ Use ^ Description ^
| GUIDRef | ocx:guid | optional | A globally unique ID referring to an entity in the authoring application. The sending application creates and holds the GUID. Used to establish a unique reference to an entity persistent  between applications. |
| localRef | xs:IDREF | required | References to an XML objects in the scope of the current file (internal references) |
| [[.:reftype|refType]] | ocx:refType | optional | The OCX entity type which is referenced. Must be a qualified OCX name. |

===== Children =====

^ Name ^ Type ^ Cardinality ^ Description ^
| [[.:contourbounds|ContourBounds]] | ocx:ContourBounds_T | [1, 1] | The definition of a contour bound.The contour bound defines the contour curve start and end points. |
| [[.:offset|Offset]] | ocx:Quantity_T | [1, 1] | An offset from a reference plane or surface. A positive offset value is in the direction of the surface normal vector. Give an Offset=0 if there is no offset from the referred  object. |
| [[.:offsetdirection|OffsetDirection]] | ocx:Vector3D_T | [1, 1] | The direction of an offset from a reference object. The direction is only interpreted if a non-zero Offset is given. |

^ Schema version | 3.2.0 |
^ Schema location | https://3docx.org/fileadmin/ocx_schema/V320/OCX_Schema.xsd |
^ Namespace | https://3docx.org/fileadmin//ocx_schema//V320//OCX_Schema.xsd |
^ Created | 2026-09-10T10:07:41Z |