====== YRefPlanes ======

A collection of X-Z planes used as object limits. Can also be used to create a frame table definition for display purposes. The exporting application will then have to provide all grid positions.

===== Attributes =====

^ Name ^ Type ^ Use ^ Description ^
| isMainSystem | xs:boolean | optional | True if this is the main reference system definition. |

===== Children =====

^ Name ^ Type ^ Cardinality ^ Description ^
| [[.:refplane|RefPlane]] | RefPlane | [1, ∞] | A reference plane used to define unbounded planar geometry. |

^ 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 |