private static string GetUnit(IIfcUnitAssignment units, IfcUnitEnum type)
{
if (units == null)
{
return(null);
}
var unit = units.Units.OfType <IIfcNamedUnit>().FirstOrDefault(u => u.UnitType == type);
return(unit != null ? unit.FullName : null);
}
private void AddQuantityPSet(IIfcElementQuantity pSet, IIfcUnitAssignment modelUnits)
{
if (pSet == null)
{
return;
}
if (modelUnits == null)
{
throw new ArgumentNullException(nameof(modelUnits));
}
foreach (var item in pSet.Quantities.OfType <IIfcPhysicalSimpleQuantity>())
// currently only handles IfcPhysicalSimpleQuantity
{
_quantities.Add(new PropertyItem
{
PropertySetName = pSet.Name,
Name = item.Name,
Value = GetValueString(item, modelUnits)
});
}
}
private static string GetUnit(IIfcUnitAssignment units, IfcUnitEnum type)
{
var unit = units?.Units.OfType <IIfcNamedUnit>().FirstOrDefault(u => u.UnitType == type);
return(unit?.FullName);
}
private static string GetValueString(IIfcPhysicalSimpleQuantity quantity, IIfcUnitAssignment modelUnits)
{
if (quantity == null)
{
return("");
}
string value = null;
var unitName = "";
var u = quantity.Unit;
if (quantity.Unit != null)
{
unitName = quantity.Unit.FullName;
}
var length = quantity as IIfcQuantityLength;
if (length != null)
{
value = length.LengthValue.ToString();
if (quantity.Unit == null)
{
unitName = GetUnit(modelUnits, IfcUnitEnum.LENGTHUNIT);
}
}
var area = quantity as IIfcQuantityArea;
if (area != null)
{
value = area.AreaValue.ToString();
if (quantity.Unit == null)
{
unitName = GetUnit(modelUnits, IfcUnitEnum.AREAUNIT);
}
}
var weight = quantity as IIfcQuantityWeight;
if (weight != null)
{
value = weight.WeightValue.ToString();
if (quantity.Unit == null)
{
unitName = GetUnit(modelUnits, IfcUnitEnum.MASSUNIT);
}
}
var time = quantity as IIfcQuantityTime;
if (time != null)
{
value = time.TimeValue.ToString();
if (quantity.Unit == null)
{
unitName = GetUnit(modelUnits, IfcUnitEnum.TIMEUNIT);
}
}
var volume = quantity as IIfcQuantityVolume;
if (volume != null)
{
value = volume.VolumeValue.ToString();
if (quantity.Unit == null)
{
unitName = GetUnit(modelUnits, IfcUnitEnum.VOLUMEUNIT);
}
}
var count = quantity as IIfcQuantityCount;
if (count != null)
{
value = count.CountValue.ToString();
}
if (string.IsNullOrWhiteSpace(value))
{
return("");
}
return(string.IsNullOrWhiteSpace(unitName) ?
value :
$"{value} {unitName}");
}
