Did you know that logged in users can see a lot more content?

Other interoperability improvements

Last updated July 2, 2019 by Tekla User Assistance tekla.documentation@trimble.com

Software version: 

Other interoperability improvements

Other interoperability improvements

In Tekla Structures 2019, there are some improvements in the reference modelmodel which the designer can use as an aid when building another model

A reference model is created in Tekla Structures or in other software and can be inserted to Tekla Structures. The reference model appears together with the model but it is not modified by Tekla Structures. The user can snap to reference model points.

For example, an architectural model, a plant design model, or a heating, ventilating, and air-conditioning (HVAC) model can be a reference model.

change detection, IFCfile format commonly used in BIM that facilitates software interoperability

IFC is an open specification developed by the IAI (International Alliance for Interoperability).

Model can be exported into an IFC file.

object conversion, NC files, and Trimble Connectorfeature that enables interoperability between Tekla Structures and Trimble Connect application


Reference models

Updates in change detection

  • The new tolerance settings can be used for getting relevant changes more easily. When you are comparing two versions of the same reference model, in the Change detection , click the Property set comparison tolerances button. Change the tolerances by modifying the values, and apply the changes by closing the dialog box and clicking Update view. You can also save the tolerances.

    The changed row appears as light yellow if the tolerance is bigger than the difference.

    For more information about the property set comparison and comparison setset of object properties that are used for detecting changes in reference models

    Tekla Structures compares different versions of the reference model based on a comparison set, which tells if a change in a property is considered a change.

    tolerances, see Define a comparison set for reference model change detection.

  • IFC change detection has improved detailed data for geometry and location comparison.

  • Geometry changes have not always provided any visible feedback in the details list about the changes. This has been improved, and some new properties have been added.

  • When you removed a reference model version and did not click Modify , and then added a new version, the reference model version handling was broken. Now when you remove a version, you are asked if you want to set the model as current and save changes.

  • In change detection, selecting from the changes list and from the model viewview that is represented in the modeling mode

    Model view is available also in the drawing mode and it is represented in its own window.

    has been improved. Previously, you could not select a deleted object and a newer inserted object.

Other changes in reference models

  • Status bar messages and log entries have been updated for the reference model insert and reference model visibility status. Information about the reference models outside the maximum work areacertain portion of the model that is currently active for working on in a view

    Tekla Structures indicates the work area using dashed lines. Since objects outside the work area exist but are not visible the user can set a certain sized work area so that the views of the model are simpler and quickly updated, for example.

    is now available on the status bar. The following messages are now available:

    • Insert succeeded. Objects are located in (Bounding boxrectangular border with the smallest measure within which all the selected points that position the model objects lie

      In Tekla Structures two-dimensional bounding boxes are used in drawings and three-dimensional bounding boxes in models.

      min X, Y,Z).

    • Insert failed. Objects are located in (Bounding box min X, Y, Z). Objects too far to be visualized.

  • Reference model handling speed has been improved if there are several versions of the reference models. For example, the reference models are opened faster now.

  • The performance of locking and unlocking multiple reference models in the reference model list has been improved.

Trimble Connector

  • You can now create a new Trimble Connect(1) Trimble’s platform for microservices in the cloud

    (1) Trimble Connect platform’s microservices include services for uploading, storing, processing, and managing or consuming data. These services are meant to provide common solutions required by multiple applications.

    (2) application for information sharing and collaboration for construction projects that is based on the Trimble Connect platform

    (2) Reference models are used in Trimble Connect application instead of using import and export.

    (2) Trimble Connect application includes web, desktop and mobile clients, and the Sync tool, for example.

    project directly in Trimble Connector. Previously you needed to create the project in Trimble Connect for Desktop or Trimble Connect for Web first.

IFC object conversion

  • In IFC object conversion, date now works when copying date type properties to UDAs that are defined as Date. In IFC object conversion settings, the type needs to be set as integer.

  • In IFC object conversion, Copy properties to UDas has been changed not to use reference object report functionality anymore. This provides faster conversion and Date UDAobject property created by the user in order to widen the range of predefined object properties

    User-defined attributes are used when the predefined object properties are not sufficient but more properties are needed. For example, comment, locked, and erection status are user-defined attributes.

    usage as integer.
  • Spaces can now be used in IFC object conversion profile mapping. They are removed in internal mapping. For example, UB 356x171x45 finds UB 356x171x45, not UKB356x171x45, like previously.

  • The IFC object conversion has been improved. For example, the arc point calculation, chamfer combining, and the naming of the cut profiles have been improved.

  • The IFC object conversion did not handle or convert round cuts for plate(1) part that represents a flat structure

    (1) In some contexts, for example in analysis, the term plate object may be used to refer to plates.

    (2) plate that represents a steel structure

    (2) Plate is mainly used as a connection piece or as a floor plate.

    . This has now been fixed.

NC files

  • Now the bent line information contains the actual length of the bend, and the line no longer extends to the bounding box of the plate.

  • Now the DSTV coordinate system gives the coordinate system for the selected part, and not for the representative part.

  • Some bolt holes were missing from the NC data. This has now been fixed.

  • Sometimes, when using the option Maximum diameter for circular cuts to be drilled , the square cuts were recognized as circular. This has now been fixed.

  • The sawing angles for flanges are now available even if they are partially cut.

  • Now the hard stampinformation written in an NC file that sets the NC machine to create a text mark, containing information on the part or assembly, in a part

    Hard stamp can contain, for example, a project and lot number, phase, or part and assembly position.

    location avoids contour markinginformation written in an NC file that passes information to the NC machine on the layout and the parts that are welded or bolted together

    Tekla Structures contour marking does not work on polybeams.


  • When the hard stamps are placed, Tekla Structures now checks for bolts that were modeled on the opposite side, and the end of the bolt holesmall hollow open throughout a part or assembly that is usually used for fastening parts with bolts or other such objects

    Hole is created in the same way as bolts and hole properties are defined in the bolt properties.

    could overlap the hard stamp.

Import models

  • Importing models from older versions of Tekla Structures is not allowed any more. When you try to import an old model, the following message is displayed: "Importing models from previous versions is not supported. First save the model with the current version. Note that you will not be able to use Tekla Structures of previous version to edit the model." Click Open for upgrade to open and save the model in the new version, or click OK. For more information about importing models, see Import Tekla Structures model and drawings into another model.

Other interoperability updates

  • Tekla Structures 2019 contains a new LandXML plugincomponent that is developed using Tekla Open API

    Plugin is a .dll file and loaded inside Tekla Structures process.

    Plugins can be started from the applications and components catalog.

    version 1.19.

  • Tekla Structures 2019 reference model insert now supports Sketchup version 2019 and earlier.

Quick feedback

The feedback you give here is not visible to other users. We use your comments to improve our content.
We use this to prevent automated spam submissions.
Content rating: 
No votes yet


by Giorgio De Lorenzi

"....The changed row appears as light yellow if the tolerance is bigger than the difference...." It should be the opposite.

by Päivi from Tekla User Assistance

I will forward your comment to our product development, thanks!

Best regards,