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Output Field
Enter a name for the field in the output file for the associated field. Output
field names can use any alpha-numeric character and the underscore symbol
("_").
Create Unique Key Field
Create a unique value for each exported object. You can specify a name for
this field.
The unique ID numbers increment within a single AutoCAD Map 3D session,
but restart when you restart AutoCAD Map 3D. To extend the unique key
across multiple files you are exporting, export all the files in the same
AutoCAD Map 3D session.
Options Tab
Coordinate Conversion
To convert the exported objects to a different coordinate system, check
Convert Coordinates To. Enter the coordinate system code for the export
file or click
to select one from a list.
If the conversion controls are not available, there is no coordinate system
assigned to your current drawing. Click Cancel, assign a coordinate system
to the current drawing, and re-run Export.
Other
The options that appear in this section depend on your choice of export
format.
Treat Closed Polylines as Polygons
Export closed polylines as polygons. If this check box is not selected, only
polygon objects will be exported as polygons.
NOTE If you export a polygon topology that includes closed polylines and
those closed polylines are part of the selection set, selecting this check box may
create duplicate polygons in the exported file.
Additional Settings
The Options tab may include more settings for the format you chose. For
some formats, the Driver Options button is also available.
For information about the options for a particular format, see Supported
Formats
(page 1412).
1708 | Chapter 25 Import Export Dialog Boxes