internal void setStructuralUnits()
{
if (mStructuralSet)
{
return;
}
mStructuralSet = true;
DatabaseIfc m = mDatabase;
IfcNamedUnit fu = Find(IfcUnitEnum.FORCEUNIT);
if (fu == null)
{
fu = new IfcSIUnit(m, IfcUnitEnum.FORCEUNIT, IfcSIPrefix.NONE, IfcSIUnitName.NEWTON);
AddUnit(fu);
}
IfcSIUnit lengthSI = m.Factory.SILength, volumeSI = m.Factory.SIVolume;
if (Find(IfcDerivedUnitEnum.TORQUEUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(fu, 1), new IfcDerivedUnitElement(lengthSI, 1), IfcDerivedUnitEnum.TORQUEUNIT));
}
if (Find(IfcDerivedUnitEnum.LINEARFORCEUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(fu, 1), new IfcDerivedUnitElement(lengthSI, -1), IfcDerivedUnitEnum.LINEARFORCEUNIT));
}
if (Find(IfcDerivedUnitEnum.LINEARMOMENTUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(fu, 1), IfcDerivedUnitEnum.LINEARMOMENTUNIT));
}
if (Find(IfcDerivedUnitEnum.PLANARFORCEUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(fu, 1), new IfcDerivedUnitElement(lengthSI, -2), IfcDerivedUnitEnum.PLANARFORCEUNIT));
}
if (Find(IfcDerivedUnitEnum.MODULUSOFELASTICITYUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(fu, 1), new IfcDerivedUnitElement(lengthSI, -2), IfcDerivedUnitEnum.MODULUSOFELASTICITYUNIT));
}
IfcNamedUnit time = Find(IfcUnitEnum.TIMEUNIT);
if (time == null || Math.Abs(time.getSIFactor() - 1) < mDatabase.Tolerance)
{
time = new IfcSIUnit(mDatabase, IfcUnitEnum.TIMEUNIT, IfcSIPrefix.NONE, IfcSIUnitName.SECOND);
}
if (Find(IfcDerivedUnitEnum.ACCELERATIONUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(lengthSI, 1), new IfcDerivedUnitElement(time, -2), IfcDerivedUnitEnum.ACCELERATIONUNIT));
}
if (Find(IfcUnitEnum.PRESSUREUNIT) == null)
{
AddUnit(new IfcSIUnit(m, IfcUnitEnum.PRESSUREUNIT, IfcSIPrefix.NONE, IfcSIUnitName.PASCAL));
}
if (Find(IfcDerivedUnitEnum.SECTIONMODULUSUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(lengthSI, 3), IfcDerivedUnitEnum.SECTIONMODULUSUNIT));
}
if (Find(IfcDerivedUnitEnum.MOMENTOFINERTIAUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(lengthSI, 4), IfcDerivedUnitEnum.MOMENTOFINERTIAUNIT));
}
IfcSIUnit massu = Find(IfcUnitEnum.MASSUNIT) as IfcSIUnit;
if (massu == null)
{
massu = new IfcSIUnit(m, IfcUnitEnum.MASSUNIT, IfcSIPrefix.KILO, IfcSIUnitName.GRAM);
AddUnit(massu);
}
if (Find(IfcDerivedUnitEnum.MASSDENSITYUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(massu, 1), new IfcDerivedUnitElement(volumeSI, -1), IfcDerivedUnitEnum.MASSDENSITYUNIT));
}
IfcSIUnit kelvin = Find(IfcUnitEnum.THERMODYNAMICTEMPERATUREUNIT) as IfcSIUnit;
if (kelvin == null)
{
kelvin = new IfcSIUnit(m, IfcUnitEnum.THERMODYNAMICTEMPERATUREUNIT, IfcSIPrefix.NONE, IfcSIUnitName.KELVIN);
AddUnit(kelvin);
}
if (Find(IfcDerivedUnitEnum.THERMALEXPANSIONCOEFFICIENTUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(kelvin, -1), IfcDerivedUnitEnum.THERMALEXPANSIONCOEFFICIENTUNIT));
}
if (Find(IfcDerivedUnitEnum.LINEARSTIFFNESSUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(fu, 1), new IfcDerivedUnitElement(lengthSI, -1), IfcDerivedUnitEnum.LINEARSTIFFNESSUNIT));
}
IfcNamedUnit radians = Find(IfcUnitEnum.PLANEANGLEUNIT);
if (radians == null || Math.Abs(radians.getSIFactor() - 1) < mDatabase.Tolerance)
{
radians = new IfcSIUnit(mDatabase, IfcUnitEnum.PLANEANGLEUNIT, IfcSIPrefix.NONE, IfcSIUnitName.RADIAN);
}
if (Find(IfcDerivedUnitEnum.ROTATIONALSTIFFNESSUNIT) == null)
{
AddUnit(new IfcDerivedUnit(new IfcDerivedUnitElement(fu, 1), new IfcDerivedUnitElement(lengthSI, 1), new IfcDerivedUnitElement(radians, -1), IfcDerivedUnitEnum.ROTATIONALSTIFFNESSUNIT));
}
}