Exporting an Autodesk Civil 3D Drawing and Exploding the Objects

Use the AeccExportCivilDrawing command to create a new AutoCAD drawing with all Autodesk Civil 3D objects exploded. The original drawing is not affected.

To explode Autodesk Civil 3D objects in an object-enabled AutoCAD session

Use the AeccExportCivilDrawing command in an object-enabled AutoCAD session to create a new drawing with all Autodesk Civil 3D objects exploded.

The AeccExportCivilDrawing command preserves the appearance of Autodesk Civil 3D objects and styles when they are exploded.

  1. Enter AeccExportCivilDrawing at the command line of an AutoCAD enabled with the Autodesk Civil 3D Object Enabler.
  2. In the Export Drawing Name dialog box, specify the name and location for the new drawing.
  3. Click Save.

To specify the settings used by the AeccExportCivilDrawing command

The AeccExportCivilDrawing command uses some of the same settings as specified with the -AecExportToAutoCAD command. Run the -AecExportToAutoCAD command to specify settings for controlling the version of the exported drawing, xref options, and the default prefix and suffix. You can then run the AeccExportCivilDrawing command to export the drawing.

The AeccExportCivilDrawing command uses the following default settings:

To specify whether the AeccExportCivilDrawing command converts feature lines, parcel segments, and survey figures to 2D or 3D polylines

By default, the AeccExportCivilDrawing command converts feature lines, parcel segments, and survey figures to 3D polylines. Elevation values are preserved, but curves are tessellated.

Note: By default, the 3D polylines will be displayed with a continuous line type. If you open the exported drawing within a session of Autodesk Civil 3D, you can use the LineType3DPlineOn command to display the 3D polyline line types. Use the LineType3DPlineOff command to turn off the display of the 3D polyline line types.
If you want feature lines, parcel segments, and survey figures to be converted to 2D polylines, which preserves the curves but removes the elevation values, you can create a text file as follows.
  • Create a blank text file named ExportToDWGDGNFeatureLineAs2D.txt in one of the following locations:
    • If Autodesk Civil 3D is not installed on the same computer as the Object Enabler, the text file should be placed in C:\Program Files\Autodesk\Autodesk Civil 3D 2019 Object Enabler 64 Bit\.
    • If Autodesk Civil 3D is installed on the same computer as the Object Enabler, the text file should be placed in C:\Program Files\Autodesk\AutoCAD 2019\C3D.

    If the ExportToDWGDGNFeatureLineAs2D.txt file is in one of the above locations when you run the AeccExportCivilDrawing command, the command will convert the feature lines, parcel segments, and survey figures to 2D polylines instead of 3D polylines.

    Note: If you are using the AeccExportCivilDrawing command within a session of Autodesk Civil 3D, create the ExportToDWGDGNFeatureLineAs2D.txt file in the C:\Program Files\Autodesk\AutoCAD 2019\C3D\ folder.

To explode AEC objects in an object-enabled AutoCAD session

Use the -AecExportToAutoCAD command to explode AEC objects in an object-enabled AutoCAD session. You can also run this command to modify settings that are used by the AeccExportCivilDrawing command.

Note: If you have Autodesk Civil 3D objects in a drawing you want to export, it is recommended to use the AeccExportCivilDrawing command to export the drawing.
  1. Enter -AecExportToAutoCAD at the command line of an AutoCAD enabled with the Autodesk Civil 3D Object Enabler.
  2. Enter F to display the format options and then specify the file format.
  3. Enter B to specify whether to bind xrefs. Enter Yes or No.
  4. Enter T to specify the bind type. Enter Bind or Insert.

    The Bind method preserves xref identities, such as layer names. The Insert method binds the xref to the current drawing in a way similar to detaching and inserting the reference drawing.

  5. Enter P to specify a file prefix and then enter the prefix.
  6. Enter S to specify a file suffix and then enter the suffix.
  7. Enter ? to review the settings you have specified.
  8. When you have completed specifying settings, press Enter at the <Enter for filename>: prompt, and then specify a file name, including path. For example, enter C:\My Documents\ACAD-Drawing1.dwg.
Parent topic: Using the Autodesk Civil 3D Object Enabler