随笔分类 - ifc
摘要:比如一个beam, ObjectType: IsTypedBy: The ObjectType attribute is used: to store the user defined value for all subtypes of IfcObject, where a PredefinedTy
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摘要:NOTDEFINED is for when you don’t know what the predefined type is going to be yet (for early stage design when you don’t know what the Predefined Type
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