Export To SDF Dialog Box

Use this dialog box to save a Autodesk Civil 3D drawing in Spatial Data Format (SDF). You can use an SDF file in AutoCAD Map 3D and MapGuide Enterprise.

The Autodesk Civil 3D alignment, point, parcel, and pipe network data is converted to AutoCAD objects with attributes.

SDF File Name

Specifies the file name. Defaults to the last file name used.

Select Coordinate System

If the drawing already has a coordinate system specified, it is used automatically and these controls are not available.

Categories

Specifies the geographic zone.

Available Coordinate Systems

Specifies the coordinate system within the selected zone category. If you do not select a zone category, then the default (No Datum, No Projection) is enabled. If you select a zone category but do not select a coordinate system, then, by default, the first entry in the list is selected.

Selected Coordinate System Code

Displays the coordinate system code.

Note: If you know the code of the coordinate system you want, you can enter it directly in the Selected Coordinate System Code box. A period (.) in this box means no zone has been selected.

Description

Displays a description of the selected zone.

Projection

Displays the projection method for the coordinate system.

Datum

Displays the abbreviation for the datum on which the coordinate system is based.