.. _exhale_define__ifc2x3-definitions_8h_1a4a2f8fedcf64c2970e5942e74bf995e9:

Define SCHEMA_IfcMaterialLayer_Material_IS_OPTIONAL
===================================================

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


Define Documentation
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.. doxygendefine:: SCHEMA_IfcMaterialLayer_Material_IS_OPTIONAL