Qto_MarineFacilityBaseQuantities Base quantities that are common to the definition of all occurrences of _IfcMarineFacility_. IfcMarineFacility IfcMarineFacility Length The length of the object. Q_LENGTH Width The width of the object. Only given, if the object has constant thickness (prismatic). Q_LENGTH Height Characteristic height Q_LENGTH Area Calculated area for the object. Q_AREA Volume Volume of the element. Q_VOLUME