Research Article
Semiautomatic Generation of Code Ontology Using ifcOWL in Compliance Checking
Table 1
The mapping relationship between data type in ifcOWL, the value type of NominalValue, and unit.
| | Value type in IFC | Value type in OWL | Unit |
| | IfcVolumeMeasure | xsd:double | Cubic meter | | IfcTimeMeasure | owl:real | Second | | IfcThermodynamicTemperatureMeasure | owl:real | Kelvin | | IfcSolidAngleMeasure | owl:real | Steradian | | IfcRatioMeasure | owl:real | — | | IfcPlaneAngleMeasure | owl:real | Radian | | IfcMassMeasure | owl:real | Kilograms | | IfcLengthMeasure | owl:real | Meters | | IfcElectricCurrentMeasure | owl:real | Ampere | | IfcParameterValue | owl:real | — | | IfcDescriptiveMeasure | xsd:string | — | | IfcCountMeasure | xsd:PostivieInteger | — | | IfcContextDependentMeasure | owl:real | — | | IfcAreaMeasure | owl:real | Square meter | | IfcAmountOfSubstanceMeasure | owl:real | Mole | | IfcLuminousIntensityMeasure | owl:real | Candela |
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