/// <summary>
/// Adds a new IfcPhysicalQuantity to the IfcElementQuantity called propertySetName
/// </summary>
/// <param name="elem"></param>
/// <param name="propertySetName">Name of the IfcElementQuantity property set</param>
/// <param name="quantity">quantity to be added</param>
/// <param name="methodOfMeasurement">Sets the method of measurement, if not null overrides previous value</param>
public static IfcElementQuantity AddQuantity(this IfcObject elem, string propertySetName, IfcPhysicalQuantity quantity, string methodOfMeasurement)
{
IfcElementQuantity pset = elem.GetElementQuantity(propertySetName);
if (pset == null)
{
IModel model = elem.ModelOf;
pset = model.Instances.New <IfcElementQuantity>();
pset.Name = propertySetName;
IfcRelDefinesByProperties relDef = model.Instances.New <IfcRelDefinesByProperties>();
relDef.RelatingPropertyDefinition = pset;
relDef.RelatedObjects.Add(elem);
}
pset.Quantities.Add(quantity);
if (!string.IsNullOrEmpty(methodOfMeasurement))
{
pset.MethodOfMeasurement = methodOfMeasurement;
}
return(pset);
}
