8.11.2.107 IfcUnitEnum（单位枚举）
8.11.2.107.1 语义定义（Semantic definition）
IfcUnitEnum 是一个枚举类型，用于定义 IfcNamedUnit 允许使用的单位类型。
8.11.2.107.2 类型值
| 类型 | 描述 |
|---|---|
ABSORBEDDOSEUNIT
| |
AMOUNTOFSUBSTANCEUNIT
| |
AREAUNIT
| |
DOSEEQUIVALENTUNIT
| |
ELECTRICCAPACITANCEUNIT
| |
ELECTRICCHARGEUNIT
| |
ELECTRICCONDUCTANCEUNIT
| |
ELECTRICCURRENTUNIT
| |
ELECTRICRESISTANCEUNIT
| |
ELECTRICVOLTAGEUNIT
| |
ENERGYUNIT
| |
FORCEUNIT
| |
FREQUENCYUNIT
| |
ILLUMINANCEUNIT
| |
INDUCTANCEUNIT
| |
LENGTHUNIT
| |
LUMINOUSFLUXUNIT
| |
LUMINOUSINTENSITYUNIT
| |
MAGNETICFLUXDENSITYUNIT
| |
MAGNETICFLUXUNIT
| |
MASSUNIT
| |
PLANEANGLEUNIT
| |
POWERUNIT
| |
PRESSUREUNIT
| |
RADIOACTIVITYUNIT
| |
SOLIDANGLEUNIT
| |
THERMODYNAMICTEMPERATUREUNIT
| |
TIMEUNIT
| |
VOLUMEUNIT
| |
USERDEFINED
|
8.11.2.107.3 形式化表示（Formal representation）
TYPE IfcUnitEnum = ENUMERATION OF
(ABSORBEDDOSEUNIT
,AMOUNTOFSUBSTANCEUNIT
,AREAUNIT
,DOSEEQUIVALENTUNIT
,ELECTRICCAPACITANCEUNIT
,ELECTRICCHARGEUNIT
,ELECTRICCONDUCTANCEUNIT
,ELECTRICCURRENTUNIT
,ELECTRICRESISTANCEUNIT
,ELECTRICVOLTAGEUNIT
,ENERGYUNIT
,FORCEUNIT
,FREQUENCYUNIT
,ILLUMINANCEUNIT
,INDUCTANCEUNIT
,LENGTHUNIT
,LUMINOUSFLUXUNIT
,LUMINOUSINTENSITYUNIT
,MAGNETICFLUXDENSITYUNIT
,MAGNETICFLUXUNIT
,MASSUNIT
,PLANEANGLEUNIT
,POWERUNIT
,PRESSUREUNIT
,RADIOACTIVITYUNIT
,SOLIDANGLEUNIT
,THERMODYNAMICTEMPERATUREUNIT
,TIMEUNIT
,VOLUMEUNIT
,USERDEFINED);
END_TYPE;