====== ReferenceSurfaces ======

Collection of frequently used surfaces which are referenced by more than one object.

===== Children =====

^ Name ^ Type ^ Cardinality ^ Description ^
| [[.:cone3d|Cone3D]] | ocx:Cone3D_T | [1, ∞] | Definition of the Cone surface defined by origin, radius and position of the cone tip. |
| [[.:cylinder3d|Cylinder3D]] | ocx:Cylinder3D_T | [1, ∞] | Definition of the cylindrical surface defined by root point, axis direction, radius and height. |
| [[.:extrudedsurface|ExtrudedSurface]] | ocx:ExtrudedSurface_T | [1, ∞] | Definition of an extruded surface defined by a base curve and 
either a sweep direction and length or a sweep curve. |
| [[.:nurbssurface|NURBSSurface]] | ocx:NURBSSurface_T | [1, ∞] | Non-uniform rational basis surface definition defined by a net (grid) of polynomial basis functions  in U and V direction. |
| [[.:plane3d|Plane3D]] | ocx:Plane3D_T | [1, ∞] | Definition of a  Planar surface defined by Root Point and Normal. |
| [[.:sphere3d|Sphere3D]] | ocx:Sphere3D_T | [1, ∞] | Definition of a Spherical surface defined by origin and radius. |
| [[.:surfacecollection|SurfaceCollection]] | ocx:SurfaceCollection_T | [1, ∞] | A collection of any number of surfaces. The surfaces have to be connected (no dis-joint surfaces). Most typically the SurfaceCollection will include the outer shell geometry definition of the vessel. |

^ Schema version | 3.2.0 |
^ Schema location | .\OCX_Schema.xsd |
^ Namespace | https://3docx.org/fileadmin//ocx_schema//V320//OCX_Schema.xsd |
^ Created | 2026-09-09T11:33:00Z |