IFC (IFC4X3_ADD2) under development Qto_DuctFittingBaseQuantities Semantic definition

Base quantities that are common to the definition of all types and occurrences of duct fittings. Applicable entities Properties

Name Data Type Description
Length IfcQuantityLength

The length of the object.

Calculated at midpoint of cross-section and equal to the distance along the flow path from the port inlet to the port outlet. For junction fittings, it indicates the length of the longest flow path.

GrossCrossSectionArea IfcQuantityArea

Area of the cross section.

At the inlet, including the duct fitting itself and the interior flow space.

NetCrossSectionArea IfcQuantityArea

Area of the cross section of the object.

Including the duct fitting and excluding the interior flow space.

OuterSurfaceArea IfcQuantityArea

Total area of the surfaces of the object (not taking into account the end cap areas), normally generated as perimeter * length in case of extrusions.

GrossWeight IfcQuantityWeight

Total Gross Weight of the object without any add-on parts and not taking into account possible processing features (cut-out's, etc.) or openings and recesses.


Edit on Github

Is this page difficult to understand? Let us know! Changelog IFC4

  • New resource IFC4.3_DEV_a2a825a