BIM Plugin: Enhanced IFC 2019 Default Export for Revit - Download Now

Autodesk® Revit® 2019 IFC update includes the latest enhancements to the default IFC import and export functionality, developed by Autodesk and our open-source contributors.

About this version

Version 19.1.0, June 29, 2018

General Improvements

• Some element naming conventions have been updated. If this causes any issues, please discuss them in the forum.
• This version primarily focuses on bug fixes and introduces new Link IFC features.

New Export Features

• Added the ability to import and export custom configuration settings.
• Introduced an option to select the project origin when exporting files, with four choices:
  • Current shared coordinate origin
  • Internal Revit coordinates
  • Project base point
  • Site survey points
• Multiple IFC4 reference view improvements, including:
  • Exporting certain contour names using geometry when appropriate
  • Fixing scaling issues in triangulation coordinates
  • Improved beam axis output
  • Restriction on many disallowed IFC entities and geometry
  • Allow listing of spatial boundary elements
• Supports remapping of IFC entity attributes beyond just attributes themselves.
• Creates more associated type entities for IFC objects.
• Consistent coverage of names, object types, and descriptions for all entities.
• Exports connectors even if they are not connected to other components.
• Exports parts hosted in linked files regardless of the ‘Export parts as building elements’ setting.
• Enhanced creation of IFCBUILDING and IFCSITE entities with better support for Illuminance and Volume parameter types.
• Includes exchange request information in the COBie export file header.
• New UI allows assigning export option addresses to buildings and/or sites.
• Reduces the number of faces in certain element geometries.
• Supports export of manufactured parts.
• Removes the unnecessary ‘Triangulation Only’ checkbox from the ‘Detail Level’ export options tab.

Export Error Fixes

• Exports “NetVolume” and “NetSideArea” quantities instead of “Gross”.
• Exports Predefined Type/ShapeType for slopes, stairs, and isolators correctly.
• Fixes export of certain elements to ensure correct types instead of IfcBuildingElementProxy or IfcBuildingElementProxyType.
• Repairs multi-story stair exits.
• Fixes export of certain spaces that used empty occupant fields.
• Corrects material assignments for certain elements.
• Fixes missing predefined types for some elements.
• Fixes missing configuration file names for certain beams.
• Corrects slope calculations for specific elements.
• Fixes unexpected errors when exporting floors as IfcRamp (IFC2x3 only).
• Fixes unexpected errors when exporting active view geometry from 3D views to websites (IFC4 RV only).
• Additional corrections to resolve unexpected errors in certain entity types.
• Restricts unconnected elements only to the IfcDistributionElement type.
• Restores calculation of ‘hidden’ and ‘external’ attributes.
• Restores accurate mapping of Revit mesh to IfcGrids.
• Restores correct UUIDs for certain doors, windows, and property sets.
• Restores remapping of deprecated IFC2x3 and IFC4 entities.
• Restores support for parameter mapping files and gap regulations in IFC2x3.
• Restores support for the IfcSpace ‘ElevationWithFlooring’ attribute.
• Restores tagging of IfcCurtainWallType.
• Restores rough tiling subdivision levels.
• Uses built-in parameters to fill some IFC parameters.
• Stops converting space heater types to electric heater types (Pre-IFC4).
• Exports some trimmed edges correctly in advanced BRep (IFC4).
• Limits distribution ports only to IfcDistributionElements (IFC4).

New Import Features

• Supports importing IfcCartesianPointList2D and IfcIndexedPolyCurve (IFC4).

Import Error Fixes

• Accepts structure items with undefined LoadBearing parameters.
• Better handling of slightly non-planar surfaces.
• Improved handling of scans with unnecessary start and end parameters.
• Uses incomplete placement information to correctly import object orientation.
• Ensures all created plans and parameters have unique names.
• Improves import of certain circular extrusion geometries where outer contour curves are slightly disjointed.