Autodesk MapGuide Enterprise SDF Reader/Writer

The Autodesk® Mapguide (Enterprise/Open Source) SDF3 Reader/Writer allows FME to read and write SDF version 3 files (SDF3).

The SDF3 file format is a native Autodesk file-based geospatial format that is optimized for storing large, classified datasets. The current version, version 3, works with AutoCAD Map 3D and Autodesk MapGuide Enterprise and other worldwide web map authoring tools.


SDF3 data may be two or three-dimensional, and SDF3 files store both geometry and attributes. A logical SDF dataset consists of one or more files in the same folder with the extension .sdf – this extension is added to the basename of the SDF3 files.

The SDF3 reader and writer support the storage of point, line, circular arc, and polygon geometric data in .sdf files. Output files may contain multiple geometry types. The SDF3 format can also store features with no geometry.

Reader Overview

The SDF3 reader first opens the SDF3 file(s) specified in the mapping file. The SDF3 reader then extracts features from the file(s) one at a time, and passes them to the rest of FME for further processing.

Writer Overview

The SDF3 writer stores both geometry and attributes in an SDF file.