.. _exhale_define__ifc4x2-definitions_8h_1a083e0b642c48729237374905283d1a41: Define SCHEMA_IfcMechanicalFastener_NominalDiameter_IS_OPTIONAL =============================================================== - Defined in :ref:`file_src_ifcparse_Ifc4x2-definitions.h` Define Documentation -------------------- .. doxygendefine:: SCHEMA_IfcMechanicalFastener_NominalDiameter_IS_OPTIONAL