.. _exhale_define__ifc2x3-definitions_8h_1a67979951b68e316cd05d18298026f824: Define SCHEMA_IfcMechanicalMaterialProperties_YoungModulus_IS_OPTIONAL ====================================================================== - Defined in :ref:`file_src_ifcparse_Ifc2x3-definitions.h` Define Documentation -------------------- .. doxygendefine:: SCHEMA_IfcMechanicalMaterialProperties_YoungModulus_IS_OPTIONAL