Revit 2014 Updates to Exporter and/or Exporter UI available

2013-04-26
2015-02-06
  • Angel Velez
    Angel Velez
    2013-04-26

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.2.0 and 2.2.0.
    Changes include:

    (3.2.0) IFC Exporter for Revit 2014 v3.2.0.msi, IFC Exporter for Revit 2014 Source v3.2.0.zip

    New Functionality:

    •Add property sets: Pset_ElectricalDeviceCommon, Pset_SwitchingDeviceTypeCommon, Pset_SwitchingDeviceTypeToggleSwitch
    •Add support for electrical current, electrical voltage, frequency, and positive plane angle units.
    •Allow Name/ObjectType/Description override fo IfcSystem.
    •Allow using "IfcExportAs" = "DontExport" to remove an individual element or type from the export.
    •Export DuctLining.
    •Export Groups, including nested groups, as IfcGroup.
    •Export electrical systems and connectors.
    •Export local coordinate system for IfcDistributionPorts.
    •Export PipeInsulation.
    Bug Fixes:

    •Allow MEP zones to export Pset_ZoneCommon, fix 2 property names.
    •Correct export of parts for Coordination View 2.0.
    •Correct height of Revit Areas.
    •Correct material assignment for generic MEP exporter.
    •Correct units and unit scaling for volumetric flow rate.
    •Fix export of multi-storey stairs.
    •Get material for ducts and pipes from system.
    •Properly associate internal ElementType Revit property sets with IfcElementType, instead of adding to instances.
    •Properly scale door and window lining properties.
    •Protect against trying to add a null property to an IfcPropertySet.
    •Remove extraneous property sets when exporting Rebars.
    •Remove stale IfcSurfaceStyle and IfcPresentationStyleAssignment handles from caches for some aborted attempts to export items as multiple IfcExtrudedAreaSolid.
    •Return correct boolean value for GetBooleanAtribute function.

    (2.2.0) IFC Export UI for Autodesk Revit 2014 v2.2.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.2.0.zip

    General:

    We did some work to try to make the UI a little more user-friendly. This wasn't intended as a complete overhaul, but instead an improvement within the current setup of the alternate UI. This includes:

    1st Page of Export:

    •Change default to "IFC2x3 Coordination View 2.0" MVD from "Default 2x3", which was the original IFC2x3 Coordination View MVD.
    •Don't create an "Update Setups" transaction unless "Modify Setup..." is chosen.
    •Move the "Export..." button to the lower-right, next to the "Cancel" button.
    •Remove the "Save setups and close" button; setups will be automatically saved when pressing "OK" button "Modify Setup" page.
    •Re-order and rename the built-in configurations to match the real file versions and MVD names.
    •Sort the table into "included" and "not included" for customizable options.

    2nd Page of Export:

    •OK button saves configuration changes; no need for "Save setups and close" button.
    •Re-group the custom options into more logical groups.

     
  • Angel Velez
    Angel Velez
    2013-06-03

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.3.0 and 2.3.0.
    Changes include:

    (3.3.0) IFC Exporter for Revit 2014 v3.3.0.msi
    IFC Exporter for Revit 2014 Source v3.3.0.zip

    New Functionality:
    - #CV-2x3-166: change the corresponding instance entity class for IfcSpaceHeaterType from IfcEnergyConversionDevice to IfcFlowTerminal.

    Bug Fixes:
    - Assign correct Revit internal properties for elements in containers.
    - Allow MEP zones to export Pset_ZoneCommon, fix 2 property names.
    - Fix export of multi-story ramps.
    - Fix orientation of some connectors.
    - Properly calculate Ceiling:Finish property. Previously, the value was not reset between ceilings, resulting in an ever-growing list of finish materials.
    - Prevent duplicate GUIDs for some elements and Psets that re-used the same GUID values. Note that this will have the affect of a one-time change of GUID values for some IfcPropertySets.
    - Stop duplication of Cartesian points in the output of some BReps.

    (2.3.0) IFC Export UI for Autodesk Revit 2014 v2.3.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.3.0.zip

    • Added "Use coarse tessellation for some BReps" option, defaulting to true.
     
    Last edit: Angel Velez 2013-07-17
  • Angel Velez
    Angel Velez
    2013-06-13

    We have upgraded the 2014 Open source IFC exporter to version 3.3.2.
    Changes include:

    (3.3.2) IFC Exporter for Revit 2014 v3.3.2.msi
    IFC Exporter for Revit 2014 Source v3.3.2.zip

    New Functionality:

    • Read in ParameterMappingTable.txt, which allows a users to specify a mapping from Revit properties to IFC common parameter sets. Please see the Wiki on custom parameter mapping for more information.
      • Special thanks to: Tom Pesman (http://nl.linkedin.com/in/tompesman) and the Dutch Revit User Group (www.revitgg.nl / www.dutchrevitstandards.com) for their contribution of this improvement to the Open Source.

    Bug Fixes:

    • Properly export space containment for equipment.
     
  • Angel Velez
    Angel Velez
    2013-07-17

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.4.0 and 2.4.0.
    Changes include:

    (3.4.0) IFC Exporter for Revit 2014 v3.4.0.msi
    IFC Exporter for Revit 2014 Source v3.4.0.zip

    General

    • Added basic support for IFC4 export, corresponding to the Coordination View 2.0 MVD. Please see the Wiki for more details. This requires Revit 2014 Update Release 1 to be installed. Note that currently the ifcXML format for IFC4 is not supported.
    • Minor performance improvement by reducing the number of calls to the IFC export mapping table.
    • This version is the Revit MEP certified version of the exporter. Revit is now certified for all 3 possible export certifications: Architectural, Structural, and MEP.

    New Functionality

    • Add new MEP property sets: Pset_SanitaryTerminalBath, Pset_SanitaryTerminalShower, Pset_SanitaryTerminalSink, Pset_SanitaryTerminalWashBasin
    • Add support for IfcRelCoversBldgElements for ducts and pipes.
    • Allow association of property set descriptions to a specific pre-defined type of an entity.
    • Allow exporting foundation and retaining walls as IfcFooting, if set in the IFC export mapping tabble, or using "IfcExportAs" for the particular wall.
    • Export "SiteLandTitleNumber" and "SiteLongName" shared parameters from Project Information to IfcSite, if they are set.
    • Optionally allow storing the generated IFC GUIDs into the project file after export. This will add "IFC GUID" parameters to elements, their types, and Project Information for Project, Site, and Building GUIDS. This requires version v2.4 of the alternate UI to set the option, and requires a manual save.

    Bug Fixes

    • Add base equipment to the IfcSystem.
    • Correct export of true north for IfcSite.
    • Move more local coordinate systems closer to the entity's geometry.

    (2.4.0) IFC Export UI for Autodesk Revit 2014 v2.4.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.4.0.zip

    • Added IFC4 Basic Coordination View 2.0 configuration, and IFC4 as a pull-down option for IFC version. This requires Revit 2014 Update Release 1 to be installed.
    • Optionally allow storing the generated IFC GUIDs into the project file after export. This will add "IFC GUID" parameters to elements, their types, and Project Information for Project, Site, and Building GUIDS. This requires v3.4 of the expoter to add the parameter values, and also requires a manual save.
    • Report which property sets are being exported on a single line in the detail section of the first export screen.
     
    • Angel Velez
      Angel Velez
      2013-08-20

      We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.5.0 and 2.5.0.
      Changes include:

      (3.5.0) IFC Exporter for Revit 2014 v3.5.0.msi, IFC Exporter for Revit 2014 Source v3.5.0.zip

      General

      • Initialize GUIDOptions so that GUIDUtil.CreateGUID(element) can be used outside of the exporter code.
      • Remove filterView argument from many functions; used cached value instead.
      • Various minor optimizations to slightly improve the time to export.

      New Functionality

      • IFC4: Allow export of 0 thickness material layers.
      • IFC4: Export IfcFootingType (IFC2x3: use IfcTypeObject instead) for wall-based footings only.
      • Allow export schedules as custom property sets. The name of the schedule is the property set name; the column names are the IFC parameter names.
      • Allow export of solid models, which allow for mixing Breps an extrusions for an entity. This can result in smaller IFC files.
      • Export IfcCurtainWallType (IFC2x2: use IfcTypeObject instead).
      • Export the currently selected non-primary design option when exporting in current view only mode.
      • Use the base level parameter of an element to determine which level to associate the element to; use geometric containment only for cases where this is no base level.

      Bug Fixes

      • Don't export some extraneous local placements.
      • Don't export type if instance isn't exported for family.
      • Fix Pset_CoveringCommon: Thickness -> TotalThickness
      • Generic rework of how instance and type properties are assigned to IFC entities. If an exported entity has a related type object, then the entity will have the instance properties assigned, and the type object the type properties. If there is no type object, the exported entity will contain both instance and type properties. This should also remove any repetition of exported property sets.
      • Look at all "ZoneName X" shared parameters for a room even if some have no value. This still assumes that they are sequential (i.e., if there is no "ZoneName 4" shared parameter at all, "ZoneName 5" will not be processed).
      • Prevent export of IfcPolyLoops with less than 3 vertices.
      • Properly scale all known Revit parameter types to the units specified for the IFC file. Note that there are potentially many Revit parameter types that map to one unit type (e.g., PipeSize, WireSize, and Length are both length parameters); we do not create different units for each of these, but instead use the main unit type.
      • Respect visibilty options of curtain wall panels and mullions when exporting in current view only mode.
      • Use category id as default for IfcCoverings for ceilings, floors, and roofs.

      (2.5.0) IFC Export UI for Autodesk Revit 2014 v2.5.0.msi
      IFC Export UI for Autodesk Revit 2014 Source v2.5.0.zip

      • Add UI version number to title of the IFC Export dialog box.
      • Add option to export schedules as custom property sets. The name of the schedule is the property set name; the column names are the IFC parameter names.
      • Add option to export solid models, which allow for mixing BRep and extrusion geometries for an entity. This can result in smaller IFC files.
      • Remove option to disable surface styles on export.
      • Remove option to export advanced swept solids.
       
  • Angel Velez
    Angel Velez
    2013-09-23

    We have upgraded the 2014 Open source IFC exporter to version 3.6.0. There is no UI update with this version.

    (3.6.0) IFC Exporter for Revit 2014 v3.6.0.msi, IFC Exporter for Revit 2014 Source v3.6.0.zip

    Changes include:

    General

    • Minor cleanup to remove extraneous arguments from some functions.
    • Remove some obsolete code for old IFCDoorStyleOperation and IFCWIndowStyleOperation.

    New Functionality

    • Add support for Force properties (Newtons).

    Bug Fixes

    • Correct flow direction calculation for some connector domains, that would abort export of connector information.
    • Export Authorization field in header as a null string ('$') instead of an empty string if it is not set.
    • Export correct values for IfcDoor operation.
    • Export internal ElementId Revit properties as IfcLabel, not IfcText.
    • Export respects visibility settings of curtain panels if exporting elements in the current view.
    • Fix export of some schedules with non-exportable fields that would prevent export with exporting of schedules as property sets on.
    • Fix some caching issues with some parameter values.
    • Protect against abort of export when trying to export some invalid systems in the Revit file.
    • Set 2D representations of families to "FootPrint" representation, not "Annotation".
    • Use IfcMaterial, not IfcMaterialList, if there is only 1 material in the list.
    • Use IfcMaterialList, not IfcMaterialLayerUsage, for more BRep-based host objects.
     
  • Angel Velez
    Angel Velez
    2013-10-29

    We have upgraded the 2014 Open source IFC exporter to version 3.7.0. There is no UI update with this version.

    Changes include:

    (3.7.0) IFC Exporter for Revit 2014 v3.7.0.msi
    IFC Exporter for Revit 2014 Source v3.7.0.zip

    New Functionality

    • Create IfcTelecomAddress containing the primary e-mail address of the user if it is set via the alternate UI.
    • Major improvements on exporting correct values for parameters, including:
    • Continuing cleanup of code to make adding new parameters easier.
    • Limited support for currency, based on supported values in Revit. Some shared currencies (e.g., dollar, krona) may not always have the right locale set.
    • Improve scaling for parameter values on export to respect offset values, primarily for temperature.
    • Support for Celsius in addition to Kelvin.
    • Support for electrical illuminance, luminous flux, luminous intensity, luminous efficacy, and pressure.
    • Separate units for color temperature vs. thermodynamic temperature.

    Bug Fixes

    • Export styled items for extrusions if exporting solid models via the alternate UI.
    • Fix regression where items that should have been contained in an IfcSpace were no longer attached to either the IfcSpace or the IfcBuildingStorey.
    • Improved control over exporting reveals and wall sweeps.
     
  • Angel Velez
    Angel Velez
    2013-11-04

    We have upgraded the 2014 Open source IFC exporter to version 3.7.1. There is no UI update with this version. This is a minor bug fix release.

    Changes include:

    (3.7.1) IFC Exporter for Revit 2014 v3.7.1.msi
    IFC Exporter for Revit 2014 Source v3.7.1.zip

    Bug Fixes:

    • Avoid potential crash when storing IFC GUIDs in the file after export.
    • Fix parameter scaling for many parameter types when exporting schedules as property sets.
     
  • Angel Velez
    Angel Velez
    2013-12-23

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.8.0 and 2.8.0.
    Changes include:

    (3.8.0) IFC Exporter for Revit 2014 v3.8.0.msi
    IFC Exporter for Revit 2014 Source v3.8.0.zip

    New Functionality:

    • Allow the user to specify the name of one field that will serve as a classification.
    • Allow the user to specify which phase to export, instead of defaulting to the last phase.
    • Unlimited number of generic "ClassificationCode (x)" fields (up from 10).

    Bug Fixes:

    • Always export OmniClass information if it exists, even if another classification is always provided.
    • Export some missing BRep IfcOpeningElements when a wall split by level had an insert that spanned multiple levels.
    • IFC4: don't export obsolete IfcRelOccupiesSpaces; use IfcRelAssignsToActor instead.

    (2.8.0) IFC Export UI for Autodesk Revit 2014 v2.8.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.8.0.zip

    New Functionality:

    • Add "Classification Field Name" to Classification tab in Assignments. This allows a user to specify the name of one field that will serve as a classification.
    • Add "Phase to Export" UI to allow user to choose which phase to export. This field is grayed out if exporting the current view.

    Bugs Fixed:

    • Fix "Duplicate" button in the export setup dialog to respond to left-clicking.
     
  • Angel Velez
    Angel Velez
    2014-02-20

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.9.0 and 2.9.0.
    Changes include:

    (3.9.0) IFC Exporter for Revit 2014 v3.9.0.msi
    IFC Exporter for Revit 2014 Source v3.9.0.zip

    General:

    New Functionality:

    • Add support for IfcActorRole.
    • Add support for IfcBuildingElementProxyType (for IFC2x3 and IFC4; not supported in IFC2x2).
    • Add some support for IfcRailingType (not for all cases).
    • Add classifications to IfcBuildingStorey, IfcSystem and IfcZone.
    • Allow some proxies to be parts of MEP IfcSystems.
    • Better naming of distribution ports (Revit connectors), consistent with COBie requirements.
    • Get COBie contact information from the new COBie toolkit if it is available.
    • Remove use of .ELEMENT. for IfcBuildingElementProxy, which is obsolete in IFC4.
    • Set the description of connection types for wall connections consistent with COBie requirements.
    • Support export of user defined property sets.

    Bugs Fixes:

    • Don't stop looking for custom classification codes when an empty classification code is found; check all 10.
    • Set ceilings as space boundaries regardless of which MVD is being used.
    • Use correct family type when creating classification information for types.

    (2.9.0) IFC Export UI for Autodesk Revit 2014 v2.9.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.9.0.zip

    New Functionality:

    • Add option to export user defined property sets. Please see the SourceForge wiki for more information on what is currently supported.
    • Added "IFC2x3 Extended FM Handover View" configuration to UI. Use this option if you want to maximally extract COBie data from the IFC file.
     
  • Angel Velez
    Angel Velez
    2014-04-10

    We have upgraded the 2014 Open source IFC exporter to versions 3.10.0.
    Changes include:

    (3.10.0) IFC Exporter for Revit 2014 v3.10.0.msi
    IFC Exporter for Revit 2014 Source v3.10.0.zip

    New Functionality:

    • Changed the heuristic used to determine what the "primary" view is for each exported level, necessary if exporting 2D annotations. Previously, depending on the base template, some exports choose the site view over the plan view for the base level.
    • Extend use of ExtrusionAnalyser to simple mullion geometry, allow some highly faceted BReps to be exported as extrusions with clippings instead.

    Bug Fixes:

    • Fix scaling issues of many wall base quantities.
    • Fix some cases where walls with openings at their base were exported with the wrong footprint.
    • Fix filter for space export based on selected phase.
    • Get correct space for family instances based on phase chosen on export, instead of the space in the last phase.
     
    Last edit: Angel Velez 2014-04-10
  • Angel Velez
    Angel Velez
    2014-06-27

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.11.0 and 2.11.0.
    Changes include:

    (3.11.0) IFC Exporter for Revit 2014 v3.11.0.msi
    IFC Exporter for Revit 2014 Source v3.11.0.zip

    New Functionality:

    • (IFC2x3) Use an alternate coarser representation for some simple sweeps that significantly reduces the number of facets if the UI option to use coarse representations for some BReps and profiles is enabled.
    • (IFC4) Use IfcSurfaceCurveSweptAreaSolid for some simple sweeps instead of IfcFacetedBRep.
    • (IFC4) Support IfcFootingType.CAISSON_FOUNDATION.
    • Add support for Pset_DoorWindowGlazingType and Pset_DoorWindowShadingType.
    • Add support for properties of type IfcNormalisedRatioMeasure.
    • Allow export of in-place roofs as extrusions in any direction, not just Z direction.
    • Allow use of shared parameter "IfcPresentationLayer" to override IfcPresentationLayer for an element.
    • Export linked Revit files as separate IFCs as a UI option. Note that IFC linked instances will be re-exported; we will look to optimize this in a future release.
    • Family instances can be exported as IfcSpace/IfcSpaceType.
    • Revit floors and building pads can now be exported as IfcCovering, IfcFooting, IfcRamp or IfcSlab. Foundation slabs will now default to "BASESLAB" instead of "FLOOR".
    • If all of the geometry of a mass belongs to the same sub-category, that sub-category will determine the IFC entity type in the IFC export layer mapping table.
    • UI for coarse tessellation now includes profile loops for extrusions.
    • Use a coarser representation for extrusion profiles that have more than 24 segments if the UI option to use coarse representations for some BReps and profiles is enabled.
    • Use the "schedule level parameter" for Family Instances when determining which level the instance is on. If the instance is of a nested family, use the "schedule level parameter" of the top-level family.

    Bug Fixes:

    • (IFC4) Allow export of files when a currency is set in the Revit units. Also, better export of the monetary unit.
    • Allow ceilings with finish layers with no material id assigned to be exported.
    • Allow export of imperfect geometry, generally previously imported, that can't calculate its volume.
    • Don't create IfcMaterialLayer unless also exporting IfcMaterialLayerSet.
    • Don't fail export if there are trailing spaces in the Classification Field Name.
    • Don't try to get shared coordinate information from projects whose project position has been incorrectly deleted.
    • Don't use IFCMonetaryUnit if IFC2x3 Coordination View 2.0 option is set.
    • Extend the footprint profile of some walls with full height openings at one of the two ends of the wall to include the opening footprint.
    • Fix height of the space boundaries for some doors and windows in metric units.
    • Fix update of some files with old UI saved configurations.
    • The local placement of some doors and windows would sometimes refer directly to the building story if they refered to a stale opening local placement. Always make sure to always refer to the correct local placement.
    • The ObjectType and Description fields for IfcBuildingStorey were previously reversed. This has been fixed.

    (2.11.0) IFC Export UI for Autodesk Revit 2014 v2.11.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.11.0.zip

    New Functionality:

    • Export linked Revit files as separate IFCs as a UI option. Note that IFC linked instances will be re-exported; we will look to optimize this in a future release.
    • UI for coarse tessellation now includes profile loops for extrusions.

    Bug Fixes:

    • Don't fail export if there are trailing spaces in the Classification Field Name.
    • Fix update of some files with old UI saved configurations.
     
  • Angel Velez
    Angel Velez
    2014-09-30

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.12.0 and 2.12.0.
    Changes include:

    (3.12.0) IFC Exporter for Revit 2014 v3.12.0.msi
    IFC Exporter for Revit 2014 Source v3.12.0.zip

    General:

    • Moved some more native code into the open source .NET code.

    New Functionality:

    • Revit spaces support IfcLongName to override the "LongName" parameter.

    Bug Fixes:

    • Allow export of an instance of a face-based door or window family placed on a wall.
    • Correctly associate IfcFlowSegment to its associated IfcPipeSegmentType entity when exporting gutters.
    • Don't do special calculations to generate geometry for stairs, ramps, and railings that aren't multi-story.
    • Don't export "NOTDEFINED" as the type value if the user hasn't specified a value. This was especially a problem for IFC entities that didn't have "NOTDEFINED" as a valid value, such as IfcBuildingElementProxy.
    • Fix the exported height of some walls that have vertical regions defined that extend beyond the actual height of the wall.
    • Fix the exported placement of some objects such as railings when the "Use Solid Models if Possible" UI option was used.
    • Improve performance when exporting 1st level space boundaries by not calculating the boundary information twice.
    • Significantly improve performance when trying to export a highly-tessellated geometry.
    • When splitting walls and columns on export, ignore non-building storeys when doing the split.

    (2.12.0) IFC Export UI for Autodesk Revit 2014 v2.12.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.12.0.zip

    General:

    • The export UI has been prepared for localization into alternate languages, and has been translated into French. The French version will be automatically used if you have a French OS on your machine. If you are interested in translating the UI into your local language, contact us and we will provide you with the resources file to translate. Note that the help is still English-only.
    • The Setup dialog for the export alternate UI has been split into 3 tabbed pages to make it easier to find and understand the export options.

    New Functionality:

    • Added a message to the user stating that exporting linked files does not support exporting mirrored instances.
    • The functionality for creating and using user-defined property sets has been greatly enhanced. This includes:
      • Added a "DefaultUserDefinedParameterSets.txt" file to allow a user to create user-defined property sets for any setup, including the in-session setup.
      • Added the "IFC2x3 Extended FM Handover View.txt" user-defined property sets file to the installation. This also fixes a typo in the original version.
      • Allow the user to specify any file as a user-defined property set file, instead of being forced to use the default name and location.
      • Increased the types of fields that can be used from the original 4. The full list is detailed in the DefaultUserDefinedParameterSets.txt file.
     
  • Angel Velez
    Angel Velez
    2015-02-06

    We have upgraded the 2014 Open source IFC exporter and IFC exporter UI projects to versions 3.13.0 and 2.13.0.
    Changes include:

    (3.13.0) IFC Exporter for Revit 2014 v3.13.0.msi
    IFC Exporter for Revit 2014 Source v3.13.0.zip

    New Functionality:

    • Allow IfcLongName to override the "LongName" attribute for levels.
    • Rooms can now be exported from 3D views even when exporting only elements visible in view. If the option is chosen to export rooms, then all rooms inside or bordering the bounding box of the section box will be exported. If the section box isn't active, all rooms will be exported.
    • Work in progress: users can now opt to export files according to the IFC4 Reference View MVD. This will result in IFC4 files that use IfcTriangulatedFaceSet instead of IfcFacetedBRep, resulting in significantly smaller IFC files. There are still some cases where IfcFacetedBReps show up in these files, and there are some cases where the tessellation isn't optimized for the reference view; this will be improved in upcoming releases.

    Bug Fixes:

    • Fix export of files with a project north value different than true north that would cause a slight shift in elevation.
    • Fix export of some IfcCurveBoundedPlanes with more outer loops than inner loops.
    • Fix the location of some assemblies on export.
    • Fix the base quantities export for walls and columns when they are split by level.
    • Improve splitting of walls in some cases when they are split by level on export.
    • Improved the export of some entities with extruded surface geometry with clippings and openings where some clippings and openings were not being exported.
    • Properly scale the volume of columns when base quantities are exported for non-imperial projects.

    (2.13.0) IFC Export UI for Autodesk Revit 2014 v2.13.0.msi
    IFC Export UI for Autodesk Revit 2014 Source v2.13.0.zip

    New Functionality:

    • Rooms can now be exported from 3D views even when exporting only elements visible in view. If the option is chosen to export rooms, then all rooms inside or bordering the bounding box of the section box will be exported. If the section box isn't active, all rooms will be exported.
    • Work in progress: users can now opt to export files according to the IFC4 Reference View MVD. This will result in IFC4 files that use IfcTriangulatedFaceSet instead of IfcFacetedBRep, resulting in significantly smaller IFC files. There are still some cases where IfcFacetedBReps show up in these files, and there are some cases where the tessellation isn't optimized for the reference view; this will be improved in upcoming releases.