Category: IFC

IFC for Revit – Updated Download Links March 2016

Luke Johnson

IFC for Revit 2015 (v15.7):
http://apps.exchange.autodesk.com/RVT/en/Detail/Index?id=appstore.exchange.autodesk.com%3aifc2015_windows32and64%3aen

IFC for Revit 2016 (v16.4):
http://apps.exchange.autodesk.com/RVT/en/Detail/Index?id=appstore.exchange.autodesk.com%3aifc2016_windows32and64%3aen

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.

via email

ifc-7830420

IFC for Revit updates released 12 December 2015

Luke Johnson

Links below:

IFC for Revit 2015 (v15.6):
http://apps.exchange.autodesk.com/RVT/en/Detail/Index?id=appstore.exchange.autodesk.com%3aifc2015_windows32and64%3aen

IFC for Revit 2016 (v16.3): http://apps.exchange.autodesk.com/RVT/en/Detail/Index?id=appstore.exchange.autodesk.com%3aifc2016_windows32and64%3aen

Update notes for IFC for Revit 2015 (v15.6):
General:
– Added some minor export performance tweaks.
– Added IFC4 Design Transfer View as an option.  With this option, Revit will attempt to create IfcAdvancedBReps in some cases.
– The import log file now contains the importer version at the end.

New Export Functionality:
– Display the element id for each element as it is exported.
– Create IfcGroups for multiple IfcReinforcingBars created by one rebar element in Revit.
– (IFC4) Add support for ConicalFace and fix RevolvedFace for IfcAdvancedBRep.
– (IFC4) Reuse IfcCartesianPoints when exporting an IfcAdvancedBRep.

Export Bug Fixes:
– Associate some entities with IfcBuilding if they have no other spatial containment, or there are no levels.
– Correctly export DirectShapes of Ramp, Stairs, or certain MEP categories.
– Correctly relate IfcAssembly to IfcBuildingStorey in certain cases.
– Export some elements with geometry that couldn’t be correctly split into multiple solids.
– Fix crash in certain cases where we can’t create a valid tessellation for a face.
– Fix crash when exporting certain vertical roofs.
– Fix crash when exporting elements with no bounding box when splitting elements by level.
– Fix crash when exporting filled regions with invalid color definitions.
– Fix the name of IfcArbitraryClosedProfileDef entities.
– Never export curtain wall panels independent of their curtain walls.
– Remove invisible geometry when exporting families when exporting elements in the current view.
– (IFC4) Correct export of IfcMechanicalFastener.

New Import Functionality:
– Add support for extra currency types.
– Allow import of unbounded grid lines, with a warning and an arbitrary length.

Import Bug Fixes:
– The IfcSweptSurface “Position” attribute is now optional.

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