public override void Parse(int propIndex, IPropertyValue value, int[] nestedIndex)
{
switch (propIndex)
{
case 0:
_unit = (IfcNamedUnit)(value.EntityVal);
return;
case 1:
_exponent = value.IntegerVal;
return;
default:
throw new XbimParserException(string.Format("Attribute index {0} is out of range for {1}", propIndex + 1, GetType().Name.ToUpper()));
}
}
public IfcNamedUnit GetUnitFor(IfcPhysicalSimpleQuantity quantity)
{
if (quantity.Unit != null)
{
return(quantity.Unit);
}
IfcUnitEnum?requiredUnit = null;
// list of possible types taken from:
// http://www.buildingsmart-tech.org/ifc/IFC2x3/TC1/html/ifcquantityresource/lexical/ifcphysicalsimplequantity.htm
//
if (quantity is IfcQuantityLength)
{
requiredUnit = IfcUnitEnum.LENGTHUNIT;
}
else if (quantity is IfcQuantityArea)
{
requiredUnit = IfcUnitEnum.AREAUNIT;
}
else if (quantity is IfcQuantityVolume)
{
requiredUnit = IfcUnitEnum.VOLUMEUNIT;
}
else if (quantity is IfcQuantityCount) // really not sure what to do here.
{
return(null);
}
else if (quantity is IfcQuantityWeight)
{
requiredUnit = IfcUnitEnum.MASSUNIT;
}
else if (quantity is IfcQuantityTime)
{
requiredUnit = IfcUnitEnum.TIMEUNIT;
}
if (requiredUnit == null)
{
return(null);
}
IfcNamedUnit nu = Units.OfType <IfcSIUnit>().FirstOrDefault(u => u.UnitType == (IfcUnitEnum)requiredUnit) ??
(IfcNamedUnit)Units.OfType <IfcConversionBasedUnit>().FirstOrDefault(u => u.UnitType == (IfcUnitEnum)requiredUnit);
return(nu);
}
public IfcNamedUnit GetUnitFor(IfcPropertySingleValue property)
{
if (property.Unit != null)
{
return((IfcNamedUnit)property.Unit);
}
// nominal value can be of types with subtypes:
// IfcMeasureValue, IfcSimpleValue, IfcDerivedMeasureValue
IfcUnitEnum?requiredUnit;
// types from http://www.buildingsmart-tech.org/ifc/IFC2x3/TC1/html/ifcmeasureresource/lexical/ifcmeasurevalue.htm
if (property.NominalValue is IfcVolumeMeasure)
{
requiredUnit = IfcUnitEnum.VOLUMEUNIT;
}
else if (property.NominalValue is IfcAreaMeasure)
{
requiredUnit = IfcUnitEnum.AREAUNIT;
}
else if (property.NominalValue is IfcLengthMeasure)
{
requiredUnit = IfcUnitEnum.LENGTHUNIT;
}
else if (property.NominalValue is IfcPositiveLengthMeasure)
{
requiredUnit = IfcUnitEnum.LENGTHUNIT;
}
else if (property.NominalValue is IfcAmountOfSubstanceMeasure)
{
requiredUnit = IfcUnitEnum.AMOUNTOFSUBSTANCEUNIT;
}
else if (property.NominalValue is IfcContextDependentMeasure)
{
requiredUnit = null; // todo: not sure what to do here
}
else if (property.NominalValue is IfcCountMeasure)
{
requiredUnit = null; // todo: not sure what to do here
}
else if (property.NominalValue is IfcDescriptiveMeasure)
{
requiredUnit = null; // todo: not sure what to do here
}
else if (property.NominalValue is IfcElectricCurrentMeasure)
{
requiredUnit = IfcUnitEnum.ELECTRICCURRENTUNIT;
}
else if (property.NominalValue is IfcLuminousIntensityMeasure)
{
requiredUnit = IfcUnitEnum.LUMINOUSINTENSITYUNIT;
}
else if (property.NominalValue is IfcMassMeasure)
{
requiredUnit = IfcUnitEnum.MASSUNIT;
}
else if (property.NominalValue is IfcNormalisedRatioMeasure)
{
requiredUnit = null; // todo: not sure what to do here
}
else if (property.NominalValue is IfcNumericMeasure)
{
requiredUnit = null; // todo: not sure what to do here.
}
else if (property.NominalValue is IfcParameterValue)
{
requiredUnit = null; // todo: not sure what to do here.
}
else if (property.NominalValue is IfcPlaneAngleMeasure)
{
requiredUnit = IfcUnitEnum.PLANEANGLEUNIT;
}
else if (property.NominalValue is IfcPositiveRatioMeasure)
{
requiredUnit = null; // todo: not sure what to do here.
}
else if (property.NominalValue is IfcPositivePlaneAngleMeasure)
{
requiredUnit = IfcUnitEnum.PLANEANGLEUNIT;
}
else if (property.NominalValue is IfcRatioMeasure)
{
requiredUnit = null; // todo: not sure what to do here.
}
else if (property.NominalValue is IfcSolidAngleMeasure)
{
requiredUnit = IfcUnitEnum.SOLIDANGLEUNIT;
}
else if (property.NominalValue is IfcThermodynamicTemperatureMeasure)
{
requiredUnit = IfcUnitEnum.THERMODYNAMICTEMPERATUREUNIT;
}
else if (property.NominalValue is IfcTimeMeasure)
{
requiredUnit = IfcUnitEnum.TIMEUNIT;
}
else if (property.NominalValue is IfcComplexNumber)
{
requiredUnit = null; // todo: not sure what to do here.
}
// types from IfcSimpleValue
else if (property.NominalValue is IfcSimpleValue)
{
requiredUnit = null;
}
else
{
requiredUnit = null;
}
// more measures types to be taken from http://www.buildingsmart-tech.org/ifc/IFC2x3/TC1/html/ifcmeasureresource/lexical/ifcderivedmeasurevalue.htm
if (requiredUnit == null)
{
return(null);
}
IfcNamedUnit nu = Units.OfType <IfcSIUnit>().FirstOrDefault(u => u.UnitType == (IfcUnitEnum)requiredUnit) ??
(IfcNamedUnit)Units.OfType <IfcConversionBasedUnit>().FirstOrDefault(u => u.UnitType == (IfcUnitEnum)requiredUnit);
return(nu);
}