Export to 3D DGN v8 - New 3D DGN export

Last updated September 10, 2019 by Tekla User Assistance tekla.documentation@trimble.com

Software version: 
2019i

Export to 3D DGN v8 - New 3D DGN export

Export to 3D DGN v8 - New 3D DGN export

The 3D DGN export has been renewed.

The new 3D DGN v8 uses Teigha libraries and has some new features:

  • The 3D DGN export now has the requested v8 format, and base pointpoint in a model that is used to define a starting point in surveying and that is used as an anchor point in coordinate and height transformations

    A Tekla Structures project can have several base points but only one of them can be the project base point.

    Base points allow the use of another coordinate system needed for interoperability and collaboration. Base points can also be used in drawings, and in reports and templates. Model origin is the default base point in Tekla Structures.

    Base points are also called control points.

    functionality.

  • There are several new export settings available in the new 3D DNG v8 export. In the old 3D DGN export, you could only define the export file name and location, and select whether to export all objects or selected objects.

  • The surface presentation of the parts is exported. Bolt holes are not included in the export.

  • You can now export objects relative to the model originglobal coordinate system point of origin used for the model

    Model origin is the default project base point.

    , to the base point you define, or to the work planeplane that the user has chosen in a model and that is currently active for working on in a model view

    Newly created, copied, or moved model objects comply with the work plane. For example, shifting the work plane to follow a sloped plane makes it easier to model sloped structures.

    .

  • You can now export in layers by name, phase or any template attributeattribute in a template object that Tekla Structures uses to calculate and display information from a model database

    Template attributes represent object properties.

    or user-defined attributeobject 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.

    .

  • Colors can be exported by classpart property that groups parts according to identifiers given by the user

    The identifiers of classes are usually numbers. Classes can be used for defining the color of parts in the model, for example. Class does not influence the numbering of model objects.

    or by stored object representationrepresentation of a model object or an object group in a model view, such a representation being based on the color and transparency settings applied to the model object or the object group

    .

  • You can export all objects or selected objects. You can use the Select parts and Select objects in components selection switches for selecting the objects to export.

  • The old 3D DGN v7 export is still available in File > Export > 3D DGN .

Create object group color representations

If you want to use object groupmodel objects with settings that match the settings that the user has defined for a certain purpose

In Tekla Structures, an object group is used on the one hand to control the transparency and coloring of model objects in the views and on the other in project management. Object groups can also be used in filtering tools, for example in selection filter, to select all objects that match certain properties.

color representations in the export, you need to create the object groups first and then set the colors for the object groups. Note that the transparency setting is not included in the export.

For more information, see Create object groups , and Change the color of an object group.

Create base points

If you want to export objects relative to a base point, you need to create a base point in your model. For more information, see Base points.

Export to 3D DGN v8

  • To start the export, go to the File menu, and click Export > 3D DGN v8 .

  • Define the file name and folder.

  • In Location by , select whether you want to export by model origin, by work plane, or by a defined base point.

  • Select All objects or Selected objects.

  • If you want to export selected objects, select the objects with the appropriate selection switches:

    • If you activate the parts selection or the objects in components selection, all the selected parts will be exported.
    • If you activate the assembly selection, nothing will be exported.
    • If you activate the component selection, nothing will be exported.
  • In Object color , select whether you want to export objects using object class colors or object group colors. You can use phases, part names, or template attributes as layer names for exported objects. Select Name or Phase from the list, or type the attribute name in the box. You can also use user-defined attributes as a layer name.

  • When you are done, click Export to export the objects according to the defined settings.

  • For more information about the export, see Export to 3D DGN.

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