IfcDerivedUnitElement
实体定义
注:定义依据ISO/CD 10303-41:1992
导出单位元素是构成导出单位的单位量之一。
示例牛顿每平方毫米是一个衍生单位。它有两个元素,牛顿的指数为1,毫米的指数为-2。
注:对应的ISO 10303名称:derived_unit_element,正式标准的最终定义请参考ISO/IS 10303-41。
IFC1.5.1中的新实体。
Attribute inheritance
# | Attribute | Type | Cardinality | Description | C |
---|---|---|---|---|---|
IfcDerivedUnitElement | |||||
1 | Unit | IfcNamedUnit | [1:1] | The fixed quantity which is used as the mathematical factor. | X |
2 | Exponent | INTEGER | [1:1] | The power that is applied to the unit attribute. | X |
EXPRESS Specification
ENTITY IfcDerivedUnitElement; Unit : IfcNamedUnit; Exponent : INTEGER; END_ENTITY;
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标签:Exponent,10303,IfcDerivedUnitElement,41,ISO,ENTITY From: https://www.cnblogs.com/herd/p/18108419