IfcPatch

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