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Import an SDNF model

Last updated September 10, 2018 by Tekla User Assistance tekla.documentation@trimble.com

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Import an SDNF model

Import an SDNF model

  1. On the File menu, click Import > CAD .

    The Import Models dialog box opens.

  2. Select Import CAD from the Type list.
  3. Use the default name import model or enter a new name.
  4. Click OK.
  5. Select the model from the list.
  6. Click Properties to open a dialog box where you can define the settings for the import file:
    • You can load the standard parameters for PDS and PDMS SDNF files with the Load option.

    • On the Conversion tab, enter the conversion file names or browse for the conversion files.

    • On the Parameters tab, enter the name of the SDNF file you want to import in the Input file box, or use the default name.

      SDNF files normally have a *.dat extension. The version number for SDNF 3.0 files can be found in the header if you open the file with a text editor.

    • On the Parameters tab, set the file Type to SDNF , and set the origin coordinates in the Origin boxes if you want the file in a specific location.

    • Set the SDNF options on the SDNF page:

      • In the Part Pos_No area enter a prefix and a start position numberidentifier that is assigned to all similar parts, assemblies, cast units, or reinforcement

        Position number consists of a prefix, separator, and running number. The prefix is part of the position number, identifying a numbering series. The running number is part of the position number, and is the assigned number in the numbering series, based on the start number. The separator is an optional character, such as a slash, that separates the prefix and the running number.

        In Tekla Structures, the position numbers assigned in the numbering are shown in marks and templates, for example.

        In the US, the term piece mark or ship mark is used to refer to a position number.

        . This relates to the Position number type setting.

      • In SDNF version number , select the SDNF format type ( 2.0 or 3.0 ). SDNF 3.0 is generally the format to select. However, with StruCAD it is better to share SDNF 2.0 files.

      • Set Apply cuts and fittings to Yes (default) to apply cuts and fittings in the import. These will only be included if contained within the SDNF file.

      • Set Consider offsets to Yes to create offsets. In most cases you should select Yes. No (default) positions part creation points at part end points.

      • You can create a log file. If the import fails, examine the log file to find out why. Check the log file even if the import seems to have succeeded. In the Create log file, you can select Create to write a new log file, and delete the previous log file, each time you import the model. If you select Append (default), the log file information is added at the end of the existing log file.

      • You can also select how the log file is displayed, the options being With an external viewer (like Microsoft Notepad), Not viewed , and In a dialog box , which creates a separate list dialog box in which the file can only be viewed.

      • Enter the log file name or browse for an existing log file.

      • The SDNF file contains identifiers that can be included in a part’s user-defined attributes, or used as position numbers. In Position number type , select Part position if you want the identifier to become the part’s position number. Do not use the Part Pos_No fields with this option. Select Universal ID if you want the identifier to become a 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.

        for the part. In most cases, you would select Universal ID. To make user-defined attributes visible, you need to add them to the objects.inp file. For file imports from PDS or PDMS then the Universal ID option is the normal case

    • If you wish to create a report of the import, enter the required information on the Report tab.

    • On the Advanced tab, you can set some advanced optionssettings used to customize Tekla Structures for specific companies, standards, users, or user groups

      In Tekla Structures, advanced options are settings that are used, for example, in a specific project or geographical area, or by a specific company.

      In Tekla Structures, advanced options usually begin with the initials XS and are followed by the name of the function, for example XS_BACKGROUND_COLOR.

      . Usually there is no need to change the defaults.

  7. Click OK to go to the Import Model dialog box.
  8. Select the import model name from the list and click Import.

    You can also click the New or Properties buttons if you require to make some changes.

    Tekla Structures displays the Import model info dialog box.

  9. Select which version of parts to import.
  10. Click Accept all.

    The Accept all option is generally used if importing a new model over an existing one. If you have changed the model and want to re-import it, you can also reject all changes by clicking Reject all , or accept or reject individual changes by clicking Select individual....

  11. Tekla Structures displays the message Do you want to save the import model for subsequent imports? Click Yes.

    Tekla Structures displays the import model in a 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.


  12. Right-click the model view and select Fit work area to entire model to ensure that the imported model is completely visible.
  13. If parts are missing, check the View depth Up and Down values in the View Properties dialog box and change them if necessary.

If you want to import information, which Tekla Structures parts do not have, you can use the SDNF extension line(1) temporary line in a model that can be used for aligning objects with each other

(1) Extension lines can be used when snapping or creating points.

(2) line in a drawing that is perpendicular to a dimension line and that connects the dimension line to the building object

in the SDNF file to be imported, and the REVISION_NUMBER user-defined attribute in Tekla Structures.

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