IFC: Difference between revisions
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[[File:ifc_revit_example.png|thumb|right|Example IFC created by Revit.]] | [[File:ifc_revit_example.png|thumb|right|Example IFC created by Revit.]] | ||
[[File:ifc_bridge_example.png|thumb|right|Example IFC of a bridge.]] | [[File:ifc_bridge_example.png|thumb|right|Example IFC of a bridge with colored faces.]] | ||
===Supported Spatial Structure Elements=== | ===Supported Spatial Structure Elements=== | ||
An IFC file can consist of a hierarchy of spatial structures. The following spatial structure elements are currently supported: | An IFC file can consist of a hierarchy of spatial structures. The following spatial structure elements are currently supported: | ||
Revision as of 14:43, 3 October 2025
The Industry Foundation Classes (IFC)[1] is a CAD data exchange data schema intended for description of architectural, building and construction industry data.
IFC (*.ifc) files can be imported into the Tygron Platform.
Version IFC4 is supported, earlier versions (e.g. IFC2x3) might contain errors.
Supported Spatial Structure Elements
An IFC file can consist of a hierarchy of spatial structures. The following spatial structure elements are currently supported:
- IfcSite, IfcBuilding, IfcBuildingStorey, IfcProduct
Not every element is imported for these spatial structures. The following element types are accepted:
- IfcBuildingElement, IfcGeographicElement, IfcDistributionElement, IfcElementAssembly, IfcTransportElement, IfcFeatureElement
Supported Representations
The following representations[2] are supported:
- BoundingBox
- SolidModel
- ExtrudedAreaSolid (using Profile Definitions)
- FactedBreb with FaceBounds: EdgeLoop or PolyLoop)
- MappedItem
- Curve:
- Polyline
- IndexPolyCurve
- TessellatedFaseSet:
- TriangulatedFaceSet
- PolygonalFaceSet
Profile Definitions
The following profile definitions[3] are currently supported:
- ArbitraryClosedProfile (outer and inner curves)
- ParameterizedProfiles:
- CircleProfile (incl. hollow)
- CShapeProfile (excl. fillet)
- EllipseShapeProfile
- RectangleProfile (incl. hollow)
- IShapeProfile (excl. fillet)
- LShapeProfile (excl. leg slope, fillet and edge radii )
- TShapeProfile (excl. fillet, flange-edge, web-edge radii and web and flange slopes)
- UShapeProfile (excl. flange slope, fillet and edge radii )
- ZShapeProfile (excl. fillet and edge radii)
Styles
By default, IFC features will be colored in Light Gray. The following styles are supported that can override this color:
- Surface styles: IfcSurfaceStyleShading; with style that has a SurfaceColour defined.
- FillAreaStyle: IfcColourRgb and IfcPredefinedColour; both reference colors directly.
Textures are not yet supported.
How-to's
- How to import an IFC file
- How to convert a Revit model to a IFC file
- Converting a Sketchup model to IFC format
- Exporting Blender models to IFC
References
- ↑ IFC ∙ found at: https://technical.buildingsmart.org/standards/ifc/ifc-formats/ (last visited: 2025-9-1)
- ↑ IfcRepresentations ∙ found at: https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRepresentation.htm (last visited: 2025-9-2
- ↑ IfcProfileDef ∙ found at: https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProfileDef.htm (last visited: 2025-9-2