.. _exhale_define__ifc2x3-definitions_8h_1a208677ac15567624141cf4ea2fb6f397:

Define SCHEMA_IfcGeneralMaterialProperties_Porosity_IS_OPTIONAL
===============================================================

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


Define Documentation
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.. doxygendefine:: SCHEMA_IfcGeneralMaterialProperties_Porosity_IS_OPTIONAL