pub fn extract_extrusion_definitions(
content: &[u8],
ids: Option<&HashSet<u32>>,
) -> ExtrusionDefinitionsExpand description
Opt-in exact source/instance view of IfcExtrudedAreaSolid occurrences.
Source profiles and depths retain IFC file units; each f64 occurrence
matrix maps solid-local source coordinates to absolute IFC Z-up metres.