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bimdelta-core

Element-level diff engine for IFC building models, built on IfcOpenShell.

from bimdelta_core import load_settings, run_diff

result = run_diff("rev-a.ifc", "rev-a.ifc", "rev-b.ifc", "rev-b.ifc", load_settings())
print(result.summary.added, result.summary.removed, result.summary.modified)
print(result.model_dump_json(indent=2))

Elements are matched by GlobalId, then by the authoring tool's element id in IfcElement.Tag, then by class, name, storey and placement. Matched pairs are compared on properties and quantities, placement, type, storey and a geometry signature (bounding box and volume).

A noise filter keeps export artefacts out of the result; see docs/noise-filter.md.

Part of BIMDelta. MIT licensed.

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Release files for bimdelta-core 0.4.0

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0.6.0

2 release files

0.5.0

2 release files

This release

0.4.0 This release

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