To Export To DGN Versions 7 and 8

You can import and export Microstation DGN version 7 and 8.

To change the seed file for a single file

  1. In the Export dialog box, click the Options tab.
  2. Click Driver Options.
  3. In the Design File Output Settings, under Seed File, click .
  4. In the Select Seed File dialog box, navigate to the location of the seed file to use and select the file.
  5. Click Open.

To change the default seed file

  1. Open the mapexport.ini file using a text editor such as WordPad.

    This file is in the C:\Documents and Settings\All Users\Application Data\Autodesk\AutoCAD Map 3D\R17.2 folder.

  2. Find the section labeled [DGN_V7] or [DGN_V8] . This is where the default seed file is specified.
  3. Specify the new default seed file.

    For example: Driver:RUNTIME_MACROS=_SEED,"C:\Program Files\Common Files\Autodesk Shared\GIS\ImportExport\4.0\design\seed3d_ft.dgn" .

  4. Save and close the .ini file.

To export drawing objects to MicroStation Design (DGN)

  1. In the Planning And Analysis Workspace, click Output tabMap Data Transfer panelMap 3D Export.
  2. In the Export Location dialog box, select the MicroStation File V7 or V8 file format and a location for the exported files.
  3. In the Export dialog box, specify how to export objects. To use settings that you stored previously, click Load and select the profile containing the settings.
  4. On the Selection tab, specify the objects to export.
    • To select a subset of objects, click Select manually and choose either Select Objects or Quick Select.
    • To filter the selection to export only objects on specific layers or in specific classes, specify the layers and classes to include.
    • To export polygons from a polygon topology, select the topology.
    • To preview the objects that will be exported, click Preview Filtered Selection.
  5. On the Data or Feature Class tab, click Select Attributes and select the data to export with the objects.
    Tip:

    If you are exporting data from an external database, you can export the entire record from the database or just the key fields. Because the key field values are stored in the map, choosing the key field (listed under Link Templates) makes the export faster.

  6. On the Options tab, select the options you want.
    • To perform a coordinate conversion, you must have a coordinate system assigned to the map.
    • Check Treat closed polylines as polygons (if it is available) unless you want only polygon objects to be exported as polygons.
    • Select Map Layers To DGN Levels to map each layer in the current map to a level in the DGN drawing. Specify the layers and the corresponding names for the DGN levels. DGN version 7 names can be numbers or strings. For DGN version 8, names must be strings. Closed polylines are always exported as polygons; they will be shapes in the DGN v8 file.
    • Click Driver Options to set the options described on the Concept tab of this dialog box.
  7. Click OK to begin the export process.