.. _exhale_define__ifc4x3__rc1-definitions_8h_1ac3ae4fe8253b245c654d3552ecbc8f5e:

Define SCHEMA_IfcNavigationElement_PredefinedType_IS_OPTIONAL
=============================================================

- Defined in :ref:`file_src_ifcparse_Ifc4x3_rc1-definitions.h`


Define Documentation
--------------------


.. doxygendefine:: SCHEMA_IfcNavigationElement_PredefinedType_IS_OPTIONAL