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B. MapServer Reference Guide for Vector ... > Microstation Design Files (DGN)

Name

Microstation Design Files (DGN)

Synopsis

These are also known as DGN files.

File listing

Data is encapsulated in a single file, usually with the suffix .dgn; for example: 0824t.dgn.

Data access/connection method

  • Access is available in MapServer through OGR.

  • The CONNECTIONTYPE OGR parameter must be used.

  • The path to the dgn file is required; file extension is needed.

  • All types of features in a DGN file are held in one “layer” of data. The layer is called elements and is the first and only layer.

  • The type of feature to be read from the DGN depends on the TYPE parameter in the map file.

  • DGN files typically contain POINT, LINE, POLYGON, and ANNOTATION feature types.


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