IFC 4.3.2.20251031 (IFC4X3_ADD2) under development

4.2.10.3 Length Quantity

下图展示了应用此概念时使用的通用类和关系。

G <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcQuantityLength.htm'>IfcQuantityLength</a> IfcQuantityLength QuantityName 1. Name [1:1] 2. Description [0:1]      HasExternalReferences [0:?]      PartOfComplex [0:1] 3. Unit [0:1] LengthValue 4. LengthValue [1:1] 5. Formula [0:1] IfcLabel_0 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcQuantityLength.htm'>IfcQuantityLength</a>:Name1->IfcLabel_0:IfcLabel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcText.htm'>IfcText</a> IfcText <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcQuantityLength.htm'>IfcQuantityLength</a>:Description1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcText.htm'>IfcText</a>:IfcText0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLengthMeasure.htm'>IfcLengthMeasure</a> IfcLengthMeasure <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcQuantityLength.htm'>IfcQuantityLength</a>:LengthValue1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLengthMeasure.htm'>IfcLengthMeasure</a>:IfcLengthMeasure0 IfcLabel_1 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcQuantityLength.htm'>IfcQuantityLength</a>:Formula1->IfcLabel_1:IfcLabel0
Figure 4.2.10.3.A

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