Details: New Export Functionality: – Append “(Type)” to all internal Revit type property sets, to avoid having multiple property sets with the same name assigned to the same IFC entity. – Changed how the classification code is parsed so that classifications can have brackets and colons in them. – “Extra Low” level of detail now applies to all faceted BRep geometry, allowing many more files to export without hitting the size limit. – If a user–defined property set contains the same property name more than once, take the last non–empty value (don’t duplicate the property name). – Rebar elements can generate up to 1024 consistent GUIDs for individual IfcReinforcementBars, up from 256. – (IFC4) Zones can now have a long name, set by the “ZoneLongName” shared parameter for non–MEP zones, and the “IfcLongName” parameter for MEP zones.
Export Bug Fixes: – Don’t create orphaned IfcStyledItems. – Don’t export invisible geometry in beams. – Export DirectShapes of Walls category. – Export elements with empty custom classification field values. – Floors exported as IfcSlabs correctly report if they are load bearing or not, using either the “LoadBearing” shared parameter or the Structural built–in parameter, in that order. – Improve performance in certain cases where we can’t create a valid tessellation for a face. – The “Use active view to generate geometry” option now works correctly. – (IFC4) Correct the orientation of some IfcAdvancedBRep faces.
New Import Functionality: – Import IfcProxy as Generic Models.
Import Bug Fixes: – Fix how the IFC GUID is set for certain elements. – Fix the orientation of some imported objects where part of the local placement needs to be calculated. – (IFC4) Read in some missing relations caused by “IsDefinedBy” split into 3 inverse attributes.
