/// <summary>
/// Creates a handle representing an IfcSIUnit and assigns it to the file.
/// </summary>
/// <param name="file">The file.</param>
/// <param name="unitType">The type of the unit.</param>
/// <param name="prefix">The SI Prefix for defining decimal multiples and submultiples of the unit.</param>
/// <param name="name">The word, or group of words, by which the SI unit is referred to.</param>
/// <returns>The handle.</returns>
public static IFCAnyHandle CreateSIUnit(IFCFile file, IFCUnit unitType, IFCSIPrefix? prefix,
IFCSIUnitName name)
{
IFCAnyHandle siUnit = CreateInstance(file, IFCEntityType.IfcSIUnit);
IFCAnyHandleUtil.SetAttribute(siUnit, "Prefix", prefix);
IFCAnyHandleUtil.SetAttribute(siUnit, "Name", name);
SetNamedUnit(siUnit, null, unitType);
return siUnit;
}
private IFCAnyHandle CreateSIUnit(IFCFile file, UnitType? unitType, IFCUnit ifcUnitType, IFCSIUnitName unitName, IFCSIPrefix? prefix, DisplayUnitType? dut)
{
IFCAnyHandle siUnit = IFCInstanceExporter.CreateSIUnit(file, ifcUnitType, prefix, unitName);
if (unitType.HasValue && dut.HasValue)
{
double scaleFactor = UnitUtils.ConvertFromInternalUnits(1.0, dut.Value);
ExporterCacheManager.UnitsCache.AddUnit(unitType.Value, siUnit, scaleFactor, 0.0);
}
return siUnit;
}
private IFCAnyHandle CreateSIUnit(IFCFile file, IFCUnit ifcUnitType, IFCSIUnitName unitName, IFCSIPrefix? prefix)
{
IFCAnyHandle siUnit = IFCInstanceExporter.CreateSIUnit(file, ifcUnitType, prefix, unitName);
return siUnit;
}