ifc-syntax-quantities
Installation
SKILL.md
IFC Syntax : Quantities
An IFC model carries measured magnitudes (the length of a wall, the net volume
of a slab, the count of items in an assembly) in a dedicated container :
IfcElementQuantity. Quantities are the data behind quantity take-off and cost
estimation. This skill covers the quantity entities, how they attach to elements,
and how they differ across versions.
Applies to IFC2x3, IFC4, and IFC4.3. Three things changed across versions : see the Version Differences section.
Quick Reference
Properties vs quantities : the conceptual rule
ALWAYS keep these two apart. They live in different containers.