.. _exhale_define__ifc2x3-definitions_8h_1aa78b85d71854016ac4770a1b05e726f3:

Define SCHEMA_IfcHygroscopicMaterialProperties_UpperVaporResistanceFactor_IS_OPTIONAL
=====================================================================================

- Defined in :ref:`file_src_ifcparse_Ifc2x3-definitions.h`


Define Documentation
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.. doxygendefine:: SCHEMA_IfcHygroscopicMaterialProperties_UpperVaporResistanceFactor_IS_OPTIONAL