Bentley Communities
Bentley Communities
  • Site
  • User
  • Site
  • Search
  • User
OpenBuildings | AECOsim | Speedikon
  • Product Communities
  • Building
  • OpenBuildings | AECOsim | Speedikon
  • Cancel
OpenBuildings | AECOsim | Speedikon
OpenBuildings | AECOsim | Speedikon Wiki IFC - Space property values appear in multiple fields
    • Building Design - Wiki
    • -OpenBuildings Designer
      • +What's New
      • FAQ - OpenBuildings Designer CONNECT Edition
      • Released Versions - OpenBuildings Designer
      • IFC4 Self-certification
      • +Installation - OpenBuildings Designer
      • +Migration - Upgrading from earlier versions
      • +Configuration - OpenBuildings Designer
      • +General - OpenBuildings Designer
      • +User Interface - OpenBuildings Designer
      • +Architectural Design - OpenBuildings Designer
      • +Structural Design - OpenBuildings Designer
      • +ProStructures Interoperability - OpenBuildings Designer
      • +Electrical Annotation and Design - OpenBuildings Designer
      • +Datasets and Content - OpenBuildings Designer
      • +DataGroup System - OpenBuildings Designer
      • +Floor Management - OpenBuildings Designer
      • +Grid Systems - OpenBuildings Designer
      • +Drawing Views - OpenBuildings Designer
      • +Annotation - OpenBuildings Designer
      • -Import/Export- OpenBuildings Designer
        • Generating an IFC file from any DGN file using iTwin Technology
        • A message pops up while exporting to Parasolids format if all the element in the file does not fit 1 km sized box.
        • Change the unit precision while exporting to DXF file format.
        • Converting IFC to DGN format
        • Converting reference files as DWG format
        • Create custom default setting for Export Visible Edges
        • Creating a report that includes a custom DataGroup ID property along with alignment Chainage values
        • Dialux integration with older versions of DXF format
        • Excluding specific properties during IFC Export
        • Export to DWG gives error message irrespective of Datasets
        • Export to DWG gives error message.
        • Exporting a wall having an Opening in it from DGN to DWG?
        • Exporting customized steel shapes to SDNF format
        • Exporting Navisworks file from OpenBuildings Designer
        • Extra lines are coming in the DWG file for Railing. How to resolve it?
        • Failing to load a non-Bentley MDL application with an error that says the app is not signed
        • Formatting used by IFC_*Filter.set files
        • How to alter Space description in IFC file?
        • How to avoid updating section details multiple times while Importing or Exporting SDNF?
        • How to directly print any file through a particular PLTCFG file without choosing it manually?
        • How to export Clash Detection results
        • How to export IFC with COBie properties?
        • How to Import an ISM file to OBD?
        • How to place/import a PAZ file in a DGN file?
        • How to publish an OpenBuildings Designer file using iModel hub
        • How to report on parametric cell values
        • IFC - Certain Elements Do Not Appear in COBie
        • IFC - Export - Setting the Author Properties for Your Organisation
        • IFC - Export Mapping
        • IFC - Space property values appear in multiple fields
        • IFC and COBie Export - Enabling the Required properties
        • Importing a Google Map location into OpenBuildings Designer
        • Importing a Steel Detail Neutral File in AECOsim/OpenBuildingsDesigner CONNECT Edition
        • London Underground - TFL447
        • Part error when generating Structural Quantity Spreadsheet
        • Quantities of slab showing in DGN but not exported in IFC file.
        • Railings exported to DWG display a flattened 2D version
        • Removing certain OBD properties to not export to IFC
        • Reporting on Slab Form width & length
        • Resolving the Structural Quantity Spreadsheet error
        • Save Image results are lighter than when viewed in OpenBuildings Designer
        • Structural Quantity Spreadsheet not working
        • Unable to create *.i.bim file while publishing an i-model
        • Unable to open / import / attach as reference some IFC models
        • What is the difference between IFC Import and the IFCIN keyin?
        • What is the Key-in that will directly create the PDF from any file (2D or 3D)?
        • What is the purpose of the files created along with *.imodel?
        • Where are the report definitions stored and how can I share them with other users?
        • Where does the Structural Quantity Spreadsheet get its Weight value?
      • +ProjectWise Integration - OpenBuildings Designer
      • +Customization - OpenBuildings
      • +Platform Tools - OpenBuildings Designer
      • +Plumbing Design
      • Electrical Designer
      • +Learning Tips
      • +HVAC Design - OpenBuildings Designer
      • +Bentley i-model Composition Server
      • +iTwin Synchronizer
      • +OpenBuildings Designer - Support for IFC Singapore
      • +OpenBuildings Designer Accreditation Program
    • +OpenBuildings Energy Simulator
    • +GenerativeComponents
    • OpenBuildings Station Designer
    • +OpenBuildings Speedikon
    • +OpenBuildings Speedikon + Bentley Speedikon V8i
    • +Bentley Facilities Space Planner CONNECT Edition
    • +AECOsim Building Designer
    • +iModel Plugin for Revit
    • +Social Distance Assessments
    • Working from home with OpenBuildings products
    • Working from home with Speedikon
    • +Special Interest Group (SIG) FAQs
    • +Structural Modeler_PS
    • +Configuration Explorer
    • +Legacy Products
    • Learning Content for OpenBuildings Designer

     
     Questions about this article, topic, or product? Click here. 

    IFC - Space property values appear in multiple fields

      Product(s): OpenBuildings Designer (and AECOsim Building Designer)
      Version(s): CONNECT Edition and V8i
      Area: Import/Export
      Subarea: IFC

    Problem

    Certain property values can appear in multiple properties when exported to IFC.

    Reason

    This is because some of our IFC mapping statements use a 'first non-empty value of <list>' logic to ensure that the fields required for valid IFC and COBie output are populated. Architectural Spaces are the example where we are currently exporting OpenBuildings Designer properties as follows:

    IFC Description  is     ArchSpace/@label
    IFC LongName     is     first non-empty value of ("ArchSpace/@label2", "ArchSpace/@number", ArchSpace/@label)
    IFC Name          is     first non-empty value of ("ArchSpace/@number", ArchSpace/@label)

    if 'Label 2' and 'Space Number' properties are both empty the value of ABD's 'Label' property will be exported to all three IFC fields .

    If 'Label 2' is empty the value of 'ArchSpace/@number' will appear twice.

    Background

    To ensure that the fields required for valid IFC and COBie generation always contain values we have applied the rules above rules to our IFC export to deal with situations where users have not entered data into all three properties:

    • Label
    • Label2
    • Number

    A value for the Label property is always provided by the delivered dataset content.

    Label2 and Number values are site/project specific so are left empty for the entry of data as a project proceeds.

    • Label - is intended to be the primary descriptive label for a space and is mapped to IFC Space Description.
    • Label2 - is intended to contain additional descriptive labelling for the space. If a value is not entered for label2 it will use the value of Number, or if Number is empty it will use the value of Label.
    • Number - is intended to contain the unique space number or identifying name, if a value is not entered it will use the value of Label.

    Solution

    The recommended solution is to enter values for both Label2 and Number properties either at placement or prior to IFC export using Dataset Explorer's "Edit in Excel" features. This will ensure the three properties contain appropriate values when exported.

    An alternative solution is to edit the IFC mapping to set fixed mappings for 'Label 2' and 'Space Number', this can result in empty fields in the subsequent IFC export so is not recommended. 

    This can be implemented by changing the appropriate values in the delivered dataset, e.g. in "C:\ProgramData\Bentley\AECOsimBuildingDesigner V8i Ss6\WorkSpace\BuildingDatasets\Dataset_SE\setting\IFC_PropertyMapping.set".

    The delivered mappings in the Spatial Containment Types section are:

    Space * * LongName * EVALUATE DG("ArchSpace/@label2", "ArchSpace/@number", "ArchSpace/@label")
    Space * * Name * EVALUATE DG("ArchSpace/@number", "ArchSpace/@label")

    Change these to

    Space * * LongName * ArchSpace/@label2
    Space * * Name * ArchSpace/@number

    These values wil be read next time the IFC Export Wizard is started.

    • IFC
    • IFC Mapping
    • Export
    • AECOsim Building Designer
    • Share
    • History
    • More
    • Cancel
    • Marc Thomas Created by Bentley Colleague Marc Thomas
    • When: Thu, Mar 23 2017 12:48 PM
    • Steve Cocchi Last revision by Bentley Colleague Communities MVP Steve Cocchi
    • When: Mon, Mar 14 2022 7:12 PM
    • Revisions: 5
    • Comments: 0
    Recommended
    Related
    Communities
    • Home
    • Getting Started
    • Community Central
    • Products
    • Support
    • Secure File Upload
    • Feedback
    Support and Services
    • Home
    • Product Support
    • Downloads
    • Subscription Services Portal
    Training and Learning
    • Home
    • About Bentley Institute
    • My Learning History
    • Reference Books
    Social Media
    •    LinkedIn
    •    Facebook
    •    Twitter
    •    YouTube
    •    RSS Feed
    •    Email

    © 2023 Bentley Systems, Incorporated  |  Contact Us  |  Privacy |  Terms of Use  |  Cookies