Utility for applying modification recipes to IFC files. IfcPatch enables programmatic editing and correction of IFC models through a collection of patches that can fix common issues, migrate data, or transform models.

Available Recipes

Alignment and Linear Placement

AddGeometricRepresentationToAlignment - Add geometric representations to alignment elements
AddLinearPlacementFallbackPosition - Add fallback positions for linear placements
AddZeroLengthSegmentToAlignment - Add zero-length segments to alignments
PatchStationReferentPosition - Patch station referent positions

Data Conversion and Migration

AGS2IFC - Convert AGS (geotechnical) data to IFC
ConvertLengthUnit - Convert between length units
ConvertNestToAggregate - Convert nesting relationships to aggregations
ConvertPropertiesToQuantities - Convert properties to quantities
Migrate - Migrate between IFC schema versions

Element Extraction and Manipulation

ExtractElements - Extract specific elements into a new model
ExtractPropertiesToSQLite - Export properties to SQLite database
Ifc2Sql - Convert IFC to SQL database
TessellateElements - Tessellate elements into triangulated geometry

Fixing Software-Specific Issues

FixArchiCADToRevitDoorSwings - Fix door swing orientation from ArchiCAD for Revit
FixArchiCADToRevitSpaces - Fix space data from ArchiCAD for Revit
FixRevit2025TINs - Fix TIN (Triangulated Irregular Network) issues from Revit 2025
FixRevitClassificationCodeTypes - Fix classification code data types from Revit
FixRevitTINs - Fix TIN issues from Revit

Geometry and Representation

AssignConstituentFractions - Assign fractions to material constituents
DowngradeIndexedPolyCurve - Convert indexed poly curves to simpler representations
RemoveSiteRepresentation - Remove geometric representation from site elements

Merging and Optimization

MergeDuplicateTypes - Merge duplicate element types
MergeProjects - Merge multiple IFC projects
MergeStyles - Merge duplicate styles
Optimise - Optimize file size and structure
PurgeData - Remove unused data from model

Spatial and Coordinate Systems

OffsetObjectPlacements - Offset object placement coordinates
OffsetStoreyElevations - Offset storey elevations
ResetAbsoluteCoordinates - Reset absolute coordinates to origin
ResetSpatialElementLocations - Reset spatial element locations
SetFalseOrigin - Set a false origin for coordinates
SetRefElevation - Set reference elevation
SetWorldCoordinateSystem - Set world coordinate system
SplitByBuildingStorey - Split model by building storeys

Utilities

RecycleNonRootedElements - Remove or recycle non-rooted elements
RegenerateGlobalIds - Regenerate GlobalId values for elements
RemoveRevitUniformatClassification - Remove Revit Uniformat classification
UnsharePsets - Unshare property sets between elements