Defined in File Ifc4x3_rc1.h
IfcQuantityVolume: public Ifc4x3_rc1::IfcPhysicalSimpleQuantity¶
IfcQuantityVolume is a physical quantity that defines a derived volume measure to provide an element’s physical property. It is normally derived from the physical properties of the element under the specific measure rules given by a method of measurement.
EXAMPLE A thick brick wall may be measured according to its volume. The actual size of the volume depends on the method of measurement used.
HISTORY New entity in IFC2x. It replaces the calcXxx attributes used in previous IFC Releases.
Volume measure value of this quantity.
Whether the optional attribute Formula is defined for this IfcQuantityVolume.
A formula by which the quantity has been calculated. It can be assigned in addition to the actual value of the quantity. Formulas could be mathematic calculations (like width x height), database links, or a combination. The formula is for informational purposes only.
IFC2x4 CHANGE Attribute added to the end of the attribute list.