extract()

extract(deps, inputPath, elementIds, outputPath): void

Extract specific building elements from an IFC file into a new IFC file.

Produces a single valid IFC containing only the requested elements and all of their dependencies (geometry, materials, styles, property sets). Void/fill coupling (wall + opening + door/window) and aggregation (roof + slabs, stair + flights) are automatically expanded so the output stays structurally consistent.

Parameters

Parameter	Type	Description
deps	IfcSplitterDeps	-
inputPath	string	Absolute or relative path to the source IFC file.
elementIds	number[]	Array of IFC entity IDs (#id) for the building elements to extract. Non-element or missing IDs are skipped with a warning.
outputPath	string	Path for the output IFC file.

Returns

void